diff options
1054 files changed, 16168 insertions, 8860 deletions
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 2b6e96b467e..b29b3a41803 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -301,7 +301,7 @@ jobs: - name: dist-x86_64-apple env: SCRIPT: "./x.py dist bootstrap --include-default-paths --host=x86_64-apple-darwin --target=x86_64-apple-darwin" - RUST_CONFIGURE_ARGS: "--enable-full-tools --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false --set rust.lto=thin" + RUST_CONFIGURE_ARGS: "--enable-full-tools --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false" RUSTC_RETRY_LINKER_ON_SEGFAULT: 1 MACOSX_DEPLOYMENT_TARGET: 10.7 SELECT_XCODE: /Applications/Xcode_13.4.1.app diff --git a/Cargo.lock b/Cargo.lock index 5d05a09f038..4cf3f3ddedb 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -394,7 +394,7 @@ dependencies = [ "directories", "rustc-build-sysroot", "rustc-workspace-hack", - "rustc_tools_util", + "rustc_tools_util 0.2.1", "rustc_version", "serde", "serde_json", @@ -658,7 +658,7 @@ dependencies = [ [[package]] name = "clippy" -version = "0.1.67" +version = "0.1.68" dependencies = [ "clippy_lints", "clippy_utils", @@ -673,7 +673,7 @@ dependencies = [ "regex", "rustc-semver", "rustc-workspace-hack", - "rustc_tools_util", + "rustc_tools_util 0.3.0", "semver", "serde", "syn", @@ -700,7 +700,7 @@ dependencies = [ [[package]] name = "clippy_lints" -version = "0.1.67" +version = "0.1.68" dependencies = [ "cargo_metadata 0.14.0", "clippy_utils", @@ -723,7 +723,7 @@ dependencies = [ [[package]] name = "clippy_utils" -version = "0.1.67" +version = "0.1.68" dependencies = [ "arrayvec", "if_chain", @@ -966,9 +966,9 @@ dependencies = [ [[package]] name = "crossbeam-deque" -version = "0.8.1" +version = "0.8.2" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "6455c0ca19f0d2fbf751b908d5c55c1f5cbc65e03c4225427254b46890bdde1e" +checksum = "715e8152b692bba2d374b53d4875445368fdf21a94751410af607a5ac677d1fc" dependencies = [ "cfg-if 1.0.0", "crossbeam-epoch", @@ -977,25 +977,24 @@ dependencies = [ [[package]] name = "crossbeam-epoch" -version = "0.9.6" +version = "0.9.13" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "97242a70df9b89a65d0b6df3c4bf5b9ce03c5b7309019777fbde37e7537f8762" +checksum = "01a9af1f4c2ef74bb8aa1f7e19706bc72d03598c8a570bb5de72243c7a9d9d5a" dependencies = [ + "autocfg", "cfg-if 1.0.0", "crossbeam-utils", - "lazy_static", "memoffset", "scopeguard", ] [[package]] name = "crossbeam-utils" -version = "0.8.8" +version = "0.8.14" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "0bf124c720b7686e3c2663cf54062ab0f68a88af2fb6a030e87e30bf721fcb38" +checksum = "4fb766fa798726286dbbb842f174001dab8abc7b627a1dd86e0b7222a95d929f" dependencies = [ "cfg-if 1.0.0", - "lazy_static", ] [[package]] @@ -1068,7 +1067,7 @@ checksum = "a0afaad2b26fa326569eb264b1363e8ae3357618c43982b3f285f0774ce76b69" [[package]] name = "declare_clippy_lint" -version = "0.1.67" +version = "0.1.68" dependencies = [ "itertools", "quote", @@ -2379,9 +2378,9 @@ dependencies = [ [[package]] name = "memoffset" -version = "0.6.5" +version = "0.7.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "5aa361d4faea93603064a027415f07bd8e1d5c88c9fbf68bf56a285428fd79ce" +checksum = "5de893c32cde5f383baa4c04c5d6dbdd735cfd4a794b0debdb2bb1b421da5ff4" dependencies = [ "autocfg", ] @@ -4430,6 +4429,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "598f48ce2a421542b3e64828aa742b687cc1b91d2f96591cfdb7ac5988cd6366" [[package]] +name = "rustc_tools_util" +version = "0.3.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "8ba09476327c4b70ccefb6180f046ef588c26a24cf5d269a9feba316eb4f029f" + +[[package]] name = "rustc_trait_selection" version = "0.0.0" dependencies = [ @@ -5401,7 +5406,7 @@ version = "1.6.3" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "97fee6b57c6a41524a810daee9286c02d7752c4253064d0b05472833a438f675" dependencies = [ - "cfg-if 1.0.0", + "cfg-if 0.1.10", "rand 0.8.5", "static_assertions", ] diff --git a/RELEASES.md b/RELEASES.md index 5c1990bb6c9..770dee7b546 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -1,3 +1,94 @@ +Version 1.66.0 (2022-12-15) +========================== + +Language +-------- +- [Permit specifying explicit discriminants on all `repr(Int)` enums](https://github.com/rust-lang/rust/pull/95710/) + ```rust + #[repr(u8)] + enum Foo { + A(u8) = 0, + B(i8) = 1, + C(bool) = 42, + } + ``` +- [Allow transmutes between the same type differing only in lifetimes](https://github.com/rust-lang/rust/pull/101520/) +- [Change constant evaluation errors from a deny-by-default lint to a hard error](https://github.com/rust-lang/rust/pull/102091/) +- [Trigger `must_use` on `impl Trait` for supertraits](https://github.com/rust-lang/rust/pull/102287/) + This makes `impl ExactSizeIterator` respect the existing `#[must_use]` annotation on `Iterator`. +- [Allow `..=X` in patterns](https://github.com/rust-lang/rust/pull/102275/) +- [Uplift `clippy::for_loops_over_fallibles` lint into rustc](https://github.com/rust-lang/rust/pull/99696/) +- [Stabilize `sym` operands in inline assembly](https://github.com/rust-lang/rust/pull/103168/) +- [Update to Unicode 15](https://github.com/rust-lang/rust/pull/101912/) +- [Opaque types no longer imply lifetime bounds](https://github.com/rust-lang/rust/pull/95474/) + This is a soundness fix which may break code that was erroneously relying on this behavior. + +Compiler +-------- +- [Add armv5te-none-eabi and thumbv5te-none-eabi tier 3 targets](https://github.com/rust-lang/rust/pull/101329/) + - Refer to Rust's [platform support page][platform-support-doc] for more + information on Rust's tiered platform support. +- [Add support for linking against macOS universal libraries](https://github.com/rust-lang/rust/pull/98736) + +Libraries +--------- +- [Fix `#[derive(Default)]` on a generic `#[default]` enum adding unnecessary `Default` bounds](https://github.com/rust-lang/rust/pull/101040/) +- [Update to Unicode 15](https://github.com/rust-lang/rust/pull/101821/) + +Stabilized APIs +--------------- + +- [`proc_macro::Span::source_text`](https://doc.rust-lang.org/stable/proc_macro/struct.Span.html#method.source_text) +- [`uX::{checked_add_signed, overflowing_add_signed, saturating_add_signed, wrapping_add_signed}`](https://doc.rust-lang.org/stable/std/primitive.u8.html#method.checked_add_signed) +- [`iX::{checked_add_unsigned, overflowing_add_unsigned, saturating_add_unsigned, wrapping_add_unsigned}`](https://doc.rust-lang.org/stable/std/primitive.i8.html#method.checked_add_unsigned) +- [`iX::{checked_sub_unsigned, overflowing_sub_unsigned, saturating_sub_unsigned, wrapping_sub_unsigned}`](https://doc.rust-lang.org/stable/std/primitive.i8.html#method.checked_sub_unsigned) +- [`BTreeSet::{first, last, pop_first, pop_last}`](https://doc.rust-lang.org/stable/std/collections/struct.BTreeSet.html#method.first) +- [`BTreeMap::{first_key_value, last_key_value, first_entry, last_entry, pop_first, pop_last}`](https://doc.rust-lang.org/stable/std/collections/struct.BTreeMap.html#method.first_key_value) +- [Add `AsFd` implementations for stdio lock types on WASI.](https://github.com/rust-lang/rust/pull/101768/) +- [`impl TryFrom<Vec<T>> for Box<[T; N]>`](https://doc.rust-lang.org/stable/std/boxed/struct.Box.html#impl-TryFrom%3CVec%3CT%2C%20Global%3E%3E-for-Box%3C%5BT%3B%20N%5D%2C%20Global%3E) +- [`core::hint::black_box`](https://doc.rust-lang.org/stable/std/hint/fn.black_box.html) +- [`Duration::try_from_secs_{f32,f64}`](https://doc.rust-lang.org/stable/std/time/struct.Duration.html#method.try_from_secs_f32) +- [`Option::unzip`](https://doc.rust-lang.org/stable/std/option/enum.Option.html#method.unzip) +- [`std::os::fd`](https://doc.rust-lang.org/stable/std/os/fd/index.html) + + +Rustdoc +------- + +- [Add Rustdoc warning for invalid HTML tags in the documentation](https://github.com/rust-lang/rust/pull/101720/) + +Cargo +----- + +- [Added `cargo remove` to remove dependencies from Cargo.toml](https://doc.rust-lang.org/nightly/cargo/commands/cargo-remove.html) +- [`cargo publish` now waits for the new version to be downloadable before exiting](https://github.com/rust-lang/cargo/pull/11062) + +See [detailed release notes](https://github.com/rust-lang/cargo/blob/master/CHANGELOG.md#cargo-166-2022-12-15) for more. + +Compatibility Notes +------------------- + +- [Only apply `ProceduralMasquerade` hack to older versions of `rental`](https://github.com/rust-lang/rust/pull/94063/) +- [Don't export `__heap_base` and `__data_end` on wasm32-wasi.](https://github.com/rust-lang/rust/pull/102385/) +- [Don't export `__wasm_init_memory` on WebAssembly.](https://github.com/rust-lang/rust/pull/102426/) +- [Only export `__tls_*` on wasm32-unknown-unknown.](https://github.com/rust-lang/rust/pull/102440/) +- [Don't link to `libresolv` in libstd on Darwin](https://github.com/rust-lang/rust/pull/102766/) +- [Update libstd's libc to 0.2.135 (to make `libstd` no longer pull in `libiconv.dylib` on Darwin)](https://github.com/rust-lang/rust/pull/103277/) +- [Opaque types no longer imply lifetime bounds](https://github.com/rust-lang/rust/pull/95474/) + This is a soundness fix which may break code that was erroneously relying on this behavior. +- [Make `order_dependent_trait_objects` show up in future-breakage reports](https://github.com/rust-lang/rust/pull/102635/) +- [Change std::process::Command spawning to default to inheriting the parent's signal mask](https://github.com/rust-lang/rust/pull/101077/) + +Internal Changes +---------------- + +These changes do not affect any public interfaces of Rust, but they represent +significant improvements to the performance or internals of rustc and related +tools. + +- [Enable BOLT for LLVM compilation](https://github.com/rust-lang/rust/pull/94381/) +- [Enable LTO for rustc_driver.so](https://github.com/rust-lang/rust/pull/101403/) + Version 1.65.0 (2022-11-03) ========================== diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs index 4ca59144b29..8c71332bfab 100644 --- a/compiler/rustc_abi/src/lib.rs +++ b/compiler/rustc_abi/src/lib.rs @@ -802,12 +802,9 @@ impl Integer { pub fn for_align<C: HasDataLayout>(cx: &C, wanted: Align) -> Option<Integer> { let dl = cx.data_layout(); - for candidate in [I8, I16, I32, I64, I128] { - if wanted == candidate.align(dl).abi && wanted.bytes() == candidate.size().bytes() { - return Some(candidate); - } - } - None + [I8, I16, I32, I64, I128].into_iter().find(|&candidate| { + wanted == candidate.align(dl).abi && wanted.bytes() == candidate.size().bytes() + }) } /// Find the largest integer with the given alignment or less. diff --git a/compiler/rustc_ast/src/ast.rs b/compiler/rustc_ast/src/ast.rs index 2e86970bcfd..f933b9b161c 100644 --- a/compiler/rustc_ast/src/ast.rs +++ b/compiler/rustc_ast/src/ast.rs @@ -2466,7 +2466,7 @@ pub enum ModKind { Unloaded, } -#[derive(Copy, Clone, Encodable, Decodable, Debug)] +#[derive(Copy, Clone, Encodable, Decodable, Debug, Default)] pub struct ModSpans { /// `inner_span` covers the body of the module; for a file module, its the whole file. /// For an inline module, its the span inside the `{ ... }`, not including the curly braces. @@ -2474,12 +2474,6 @@ pub struct ModSpans { pub inject_use_span: Span, } -impl Default for ModSpans { - fn default() -> ModSpans { - ModSpans { inner_span: Default::default(), inject_use_span: Default::default() } - } -} - /// Foreign module declaration. /// /// E.g., `extern { .. }` or `extern "C" { .. }`. diff --git a/compiler/rustc_ast/src/token.rs b/compiler/rustc_ast/src/token.rs index c0cc4e79a3d..7b8c0d79a17 100644 --- a/compiler/rustc_ast/src/token.rs +++ b/compiler/rustc_ast/src/token.rs @@ -114,7 +114,7 @@ impl Lit { if let NtExpr(expr) | NtLiteral(expr) = &**nt && let ast::ExprKind::Lit(token_lit) = expr.kind => { - Some(token_lit.clone()) + Some(token_lit) } _ => None, } diff --git a/compiler/rustc_ast_lowering/src/expr.rs b/compiler/rustc_ast_lowering/src/expr.rs index 3946aab646a..e86e807279d 100644 --- a/compiler/rustc_ast_lowering/src/expr.rs +++ b/compiler/rustc_ast_lowering/src/expr.rs @@ -31,6 +31,44 @@ impl<'hir> LoweringContext<'_, 'hir> { pub(super) fn lower_expr_mut(&mut self, e: &Expr) -> hir::Expr<'hir> { ensure_sufficient_stack(|| { + match &e.kind { + // Paranthesis expression does not have a HirId and is handled specially. + ExprKind::Paren(ex) => { + let mut ex = self.lower_expr_mut(ex); + // Include parens in span, but only if it is a super-span. + if e.span.contains(ex.span) { + ex.span = self.lower_span(e.span); + } + // Merge attributes into the inner expression. + if !e.attrs.is_empty() { + let old_attrs = + self.attrs.get(&ex.hir_id.local_id).map(|la| *la).unwrap_or(&[]); + self.attrs.insert( + ex.hir_id.local_id, + &*self.arena.alloc_from_iter( + e.attrs + .iter() + .map(|a| self.lower_attr(a)) + .chain(old_attrs.iter().cloned()), + ), + ); + } + return ex; + } + // Desugar `ExprForLoop` + // from: `[opt_ident]: for <pat> in <head> <body>` + // + // This also needs special handling because the HirId of the returned `hir::Expr` will not + // correspond to the `e.id`, so `lower_expr_for` handles attribute lowering itself. + ExprKind::ForLoop(pat, head, body, opt_label) => { + return self.lower_expr_for(e, pat, head, body, *opt_label); + } + _ => (), + } + + let hir_id = self.lower_node_id(e.id); + self.lower_attrs(hir_id, &e.attrs); + let kind = match &e.kind { ExprKind::Box(inner) => hir::ExprKind::Box(self.lower_expr(inner)), ExprKind::Array(exprs) => hir::ExprKind::Array(self.lower_exprs(exprs)), @@ -48,7 +86,6 @@ impl<'hir> LoweringContext<'_, 'hir> { if e.attrs.get(0).map_or(false, |a| a.has_name(sym::rustc_box)) { if let [inner] = &args[..] && e.attrs.len() == 1 { let kind = hir::ExprKind::Box(self.lower_expr(&inner)); - let hir_id = self.lower_node_id(e.id); return hir::Expr { hir_id, kind, span: self.lower_span(e.span) }; } else { self.tcx.sess.emit_err(RustcBoxAttributeError { span: e.span }); @@ -147,7 +184,7 @@ impl<'hir> LoweringContext<'_, 'hir> { ), ExprKind::Async(capture_clause, closure_node_id, block) => self.make_async_expr( *capture_clause, - None, + hir_id, *closure_node_id, None, e.span, @@ -184,6 +221,7 @@ impl<'hir> LoweringContext<'_, 'hir> { binder, *capture_clause, e.id, + hir_id, *closure_id, fn_decl, body, @@ -279,39 +317,12 @@ impl<'hir> LoweringContext<'_, 'hir> { ExprKind::Yield(opt_expr) => self.lower_expr_yield(e.span, opt_expr.as_deref()), ExprKind::Err => hir::ExprKind::Err, ExprKind::Try(sub_expr) => self.lower_expr_try(e.span, sub_expr), - ExprKind::Paren(ex) => { - let mut ex = self.lower_expr_mut(ex); - // Include parens in span, but only if it is a super-span. - if e.span.contains(ex.span) { - ex.span = self.lower_span(e.span); - } - // Merge attributes into the inner expression. - if !e.attrs.is_empty() { - let old_attrs = - self.attrs.get(&ex.hir_id.local_id).map(|la| *la).unwrap_or(&[]); - self.attrs.insert( - ex.hir_id.local_id, - &*self.arena.alloc_from_iter( - e.attrs - .iter() - .map(|a| self.lower_attr(a)) - .chain(old_attrs.iter().cloned()), - ), - ); - } - return ex; - } - // Desugar `ExprForLoop` - // from: `[opt_ident]: for <pat> in <head> <body>` - ExprKind::ForLoop(pat, head, body, opt_label) => { - return self.lower_expr_for(e, pat, head, body, *opt_label); - } + ExprKind::Paren(_) | ExprKind::ForLoop(..) => unreachable!("already handled"), + ExprKind::MacCall(_) => panic!("{:?} shouldn't exist here", e.span), }; - let hir_id = self.lower_node_id(e.id); - self.lower_attrs(hir_id, &e.attrs); hir::Expr { hir_id, kind, span: self.lower_span(e.span) } }) } @@ -576,7 +587,7 @@ impl<'hir> LoweringContext<'_, 'hir> { pub(super) fn make_async_expr( &mut self, capture_clause: CaptureBy, - outer_hir_id: Option<hir::HirId>, + outer_hir_id: hir::HirId, closure_node_id: NodeId, ret_ty: Option<hir::FnRetTy<'hir>>, span: Span, @@ -669,8 +680,9 @@ impl<'hir> LoweringContext<'_, 'hir> { hir::ExprKind::Closure(c) }; - let track_caller = outer_hir_id - .and_then(|id| self.attrs.get(&id.local_id)) + let track_caller = self + .attrs + .get(&outer_hir_id.local_id) .map_or(false, |attrs| attrs.into_iter().any(|attr| attr.has_name(sym::track_caller))); let hir_id = self.lower_node_id(closure_node_id); @@ -985,6 +997,7 @@ impl<'hir> LoweringContext<'_, 'hir> { binder: &ClosureBinder, capture_clause: CaptureBy, closure_id: NodeId, + closure_hir_id: hir::HirId, inner_closure_id: NodeId, decl: &FnDecl, body: &Expr, @@ -1018,9 +1031,7 @@ impl<'hir> LoweringContext<'_, 'hir> { let async_body = this.make_async_expr( capture_clause, - // FIXME(nbdd0121): This should also use a proper HIR id so `#[track_caller]` - // can be applied on async closures as well. - None, + closure_hir_id, inner_closure_id, async_ret_ty, body.span, diff --git a/compiler/rustc_ast_lowering/src/item.rs b/compiler/rustc_ast_lowering/src/item.rs index d73d6d3918e..73065ab5163 100644 --- a/compiler/rustc_ast_lowering/src/item.rs +++ b/compiler/rustc_ast_lowering/src/item.rs @@ -1139,7 +1139,7 @@ impl<'hir> LoweringContext<'_, 'hir> { let async_expr = this.make_async_expr( CaptureBy::Value, - Some(fn_id), + fn_id, closure_id, None, body.span, diff --git a/compiler/rustc_ast_passes/src/ast_validation.rs b/compiler/rustc_ast_passes/src/ast_validation.rs index eb9c841d80c..55ea12d25ea 100644 --- a/compiler/rustc_ast_passes/src/ast_validation.rs +++ b/compiler/rustc_ast_passes/src/ast_validation.rs @@ -42,7 +42,6 @@ enum SelfSemantic { /// What is the context that prevents using `~const`? enum DisallowTildeConstContext<'a> { TraitObject, - ImplTrait, Fn(FnKind<'a>), } @@ -187,11 +186,7 @@ impl<'a> AstValidator<'a> { fn with_impl_trait(&mut self, outer: Option<Span>, f: impl FnOnce(&mut Self)) { let old = mem::replace(&mut self.outer_impl_trait, outer); - if outer.is_some() { - self.with_banned_tilde_const(DisallowTildeConstContext::ImplTrait, f); - } else { - f(self); - } + f(self); self.outer_impl_trait = old; } @@ -1384,7 +1379,6 @@ impl<'a> Visitor<'a> for AstValidator<'a> { let mut err = self.err_handler().struct_span_err(bound.span(), "`~const` is not allowed here"); match reason { DisallowTildeConstContext::TraitObject => err.note("trait objects cannot have `~const` trait bounds"), - DisallowTildeConstContext::ImplTrait => err.note("`impl Trait`s cannot have `~const` trait bounds"), DisallowTildeConstContext::Fn(FnKind::Closure(..)) => err.note("closures cannot have `~const` trait bounds"), DisallowTildeConstContext::Fn(FnKind::Fn(_, ident, ..)) => err.span_note(ident.span, "this function is not `const`, so it cannot have `~const` trait bounds"), }; diff --git a/compiler/rustc_ast_passes/src/feature_gate.rs b/compiler/rustc_ast_passes/src/feature_gate.rs index 32f45f8b59e..039338f543c 100644 --- a/compiler/rustc_ast_passes/src/feature_gate.rs +++ b/compiler/rustc_ast_passes/src/feature_gate.rs @@ -630,7 +630,7 @@ fn check_incompatible_features(sess: &Session) { { let spans = vec![f1_span, f2_span]; sess.struct_span_err( - spans.clone(), + spans, &format!( "features `{}` and `{}` are incompatible, using them at the same time \ is not allowed", diff --git a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs index 5e3745f1735..72c0257756e 100644 --- a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs @@ -697,8 +697,8 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { .map_bound(|p| p.predicates), None, ), - ty::Opaque(did, substs) => { - find_fn_kind_from_did(tcx.bound_explicit_item_bounds(*did), Some(*substs)) + ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => { + find_fn_kind_from_did(tcx.bound_explicit_item_bounds(*def_id), Some(*substs)) } ty::Closure(_, substs) => match substs.as_closure().kind() { ty::ClosureKind::Fn => Some(hir::Mutability::Not), @@ -745,7 +745,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { err.span_suggestion_verbose( span.shrink_to_hi(), "consider cloning the value if the performance cost is acceptable", - ".clone()".to_string(), + ".clone()", Applicability::MachineApplicable, ); } diff --git a/compiler/rustc_borrowck/src/diagnostics/mod.rs b/compiler/rustc_borrowck/src/diagnostics/mod.rs index 4e2271a3067..cbd59005200 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mod.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mod.rs @@ -1059,17 +1059,12 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { ); if self.fn_self_span_reported.insert(fn_span) { err.span_note( - // Check whether the source is accessible - if self.infcx.tcx.sess.source_map().is_span_accessible(self_arg.span) { - self_arg.span - } else { - fn_call_span - }, + self_arg.span, "calling this operator moves the left-hand side", ); } } - CallKind::Normal { self_arg, desugaring, is_option_or_result } => { + CallKind::Normal { self_arg, desugaring, method_did } => { let self_arg = self_arg.unwrap(); if let Some((CallDesugaringKind::ForLoopIntoIter, _)) = desugaring { let ty = moved_place.ty(self.body, self.infcx.tcx).ty; @@ -1139,14 +1134,27 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { ), ); } + let tcx = self.infcx.tcx; // Avoid pointing to the same function in multiple different // error messages. if span != DUMMY_SP && self.fn_self_span_reported.insert(self_arg.span) { + let func = tcx.def_path_str(method_did); err.span_note( self_arg.span, - &format!("this function takes ownership of the receiver `self`, which moves {}", place_name) + &format!("`{func}` takes ownership of the receiver `self`, which moves {place_name}") ); } + let parent_did = tcx.parent(method_did); + let parent_self_ty = (tcx.def_kind(parent_did) + == rustc_hir::def::DefKind::Impl) + .then_some(parent_did) + .and_then(|did| match tcx.type_of(did).kind() { + ty::Adt(def, ..) => Some(def.did()), + _ => None, + }); + let is_option_or_result = parent_self_ty.map_or(false, |def_id| { + matches!(tcx.get_diagnostic_name(def_id), Some(sym::Option | sym::Result)) + }); if is_option_or_result && maybe_reinitialized_locations_is_empty { err.span_label( var_span, diff --git a/compiler/rustc_borrowck/src/diagnostics/move_errors.rs b/compiler/rustc_borrowck/src/diagnostics/move_errors.rs index 5a47f45677e..6db3c858ae7 100644 --- a/compiler/rustc_borrowck/src/diagnostics/move_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/move_errors.rs @@ -4,7 +4,7 @@ use rustc_middle::ty; use rustc_mir_dataflow::move_paths::{ IllegalMoveOrigin, IllegalMoveOriginKind, LookupResult, MoveError, MovePathIndex, }; -use rustc_span::Span; +use rustc_span::{BytePos, Span}; use crate::diagnostics::{DescribePlaceOpt, UseSpans}; use crate::prefixes::PrefixSet; @@ -148,7 +148,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { match_span: Span, statement_span: Span, ) { - debug!("append_binding_error(match_place={:?}, match_span={:?})", match_place, match_span); + debug!(?match_place, ?match_span, "append_binding_error"); let from_simple_let = match_place.is_none(); let match_place = match_place.unwrap_or(move_from); @@ -160,7 +160,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { if let GroupedMoveError::MovesFromPlace { span, binds_to, .. } = ge && match_span == *span { - debug!("appending local({:?}) to list", bind_to); + debug!("appending local({bind_to:?}) to list"); if !binds_to.is_empty() { binds_to.push(bind_to); } @@ -198,7 +198,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { } = ge { if match_span == *span && mpi == *other_mpi { - debug!("appending local({:?}) to list", bind_to); + debug!("appending local({bind_to:?}) to list"); binds_to.push(bind_to); return; } @@ -410,15 +410,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { fn add_move_hints(&self, error: GroupedMoveError<'tcx>, err: &mut Diagnostic, span: Span) { match error { GroupedMoveError::MovesFromPlace { mut binds_to, move_from, .. } => { - if let Ok(snippet) = self.infcx.tcx.sess.source_map().span_to_snippet(span) { - err.span_suggestion( - span, - "consider borrowing here", - format!("&{snippet}"), - Applicability::Unspecified, - ); - } - + self.add_borrow_suggestions(err, span); if binds_to.is_empty() { let place_ty = move_from.ty(self.body, self.infcx.tcx).ty; let place_desc = match self.describe_place(move_from.as_ref()) { @@ -461,39 +453,75 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { } } + fn add_borrow_suggestions(&self, err: &mut Diagnostic, span: Span) { + match self.infcx.tcx.sess.source_map().span_to_snippet(span) { + Ok(snippet) if snippet.starts_with('*') => { + err.span_suggestion_verbose( + span.with_hi(span.lo() + BytePos(1)), + "consider removing the dereference here", + String::new(), + Applicability::MaybeIncorrect, + ); + } + _ => { + err.span_suggestion_verbose( + span.shrink_to_lo(), + "consider borrowing here", + "&".to_string(), + Applicability::MaybeIncorrect, + ); + } + } + } + fn add_move_error_suggestions(&self, err: &mut Diagnostic, binds_to: &[Local]) { - let mut suggestions: Vec<(Span, &str, String)> = Vec::new(); + let mut suggestions: Vec<(Span, String, String)> = Vec::new(); for local in binds_to { let bind_to = &self.body.local_decls[*local]; if let Some(box LocalInfo::User(ClearCrossCrate::Set(BindingForm::Var( VarBindingForm { pat_span, .. }, )))) = bind_to.local_info { - if let Ok(pat_snippet) = self.infcx.tcx.sess.source_map().span_to_snippet(pat_span) + let Ok(pat_snippet) = + self.infcx.tcx.sess.source_map().span_to_snippet(pat_span) else { continue; }; + let Some(stripped) = pat_snippet.strip_prefix('&') else { + suggestions.push(( + bind_to.source_info.span.shrink_to_lo(), + "consider borrowing the pattern binding".to_string(), + "ref ".to_string(), + )); + continue; + }; + let inner_pat_snippet = stripped.trim_start(); + let (pat_span, suggestion, to_remove) = if inner_pat_snippet.starts_with("mut") + && inner_pat_snippet["mut".len()..].starts_with(rustc_lexer::is_whitespace) { - if let Some(stripped) = pat_snippet.strip_prefix('&') { - let pat_snippet = stripped.trim_start(); - let (suggestion, to_remove) = if pat_snippet.starts_with("mut") - && pat_snippet["mut".len()..].starts_with(rustc_lexer::is_whitespace) - { - (pat_snippet["mut".len()..].trim_start(), "&mut") - } else { - (pat_snippet, "&") - }; - suggestions.push((pat_span, to_remove, suggestion.to_owned())); - } - } + let inner_pat_snippet = inner_pat_snippet["mut".len()..].trim_start(); + let pat_span = pat_span.with_hi( + pat_span.lo() + + BytePos((pat_snippet.len() - inner_pat_snippet.len()) as u32), + ); + (pat_span, String::new(), "mutable borrow") + } else { + let pat_span = pat_span.with_hi( + pat_span.lo() + + BytePos( + (pat_snippet.len() - inner_pat_snippet.trim_start().len()) as u32, + ), + ); + (pat_span, String::new(), "borrow") + }; + suggestions.push(( + pat_span, + format!("consider removing the {to_remove}"), + suggestion.to_string(), + )); } } suggestions.sort_unstable_by_key(|&(span, _, _)| span); suggestions.dedup_by_key(|&mut (span, _, _)| span); - for (span, to_remove, suggestion) in suggestions { - err.span_suggestion( - span, - &format!("consider removing the `{to_remove}`"), - suggestion, - Applicability::MachineApplicable, - ); + for (span, msg, suggestion) in suggestions { + err.span_suggestion_verbose(span, &msg, suggestion, Applicability::MachineApplicable); } } @@ -521,8 +549,8 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { if binds_to.len() > 1 { err.note( - "move occurs because these variables have types that \ - don't implement the `Copy` trait", + "move occurs because these variables have types that don't implement the `Copy` \ + trait", ); } } diff --git a/compiler/rustc_borrowck/src/diagnostics/region_errors.rs b/compiler/rustc_borrowck/src/diagnostics/region_errors.rs index 9bc2e79e29b..f8ec5e5e799 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_errors.rs @@ -504,7 +504,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { let ErrorConstraintInfo { outlived_fr, span, .. } = errci; let mut output_ty = self.regioncx.universal_regions().unnormalized_output_ty; - if let ty::Opaque(def_id, _) = *output_ty.kind() { + if let ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }) = *output_ty.kind() { output_ty = self.infcx.tcx.type_of(def_id) }; diff --git a/compiler/rustc_borrowck/src/region_infer/mod.rs b/compiler/rustc_borrowck/src/region_infer/mod.rs index 90e2b6b698c..e9c98bdc514 100644 --- a/compiler/rustc_borrowck/src/region_infer/mod.rs +++ b/compiler/rustc_borrowck/src/region_infer/mod.rs @@ -747,27 +747,14 @@ impl<'tcx> RegionInferenceContext<'tcx> { // Otherwise, we need to find the minimum remaining choice, if // any, and take that. debug!("choice_regions remaining are {:#?}", choice_regions); - let min = |r1: ty::RegionVid, r2: ty::RegionVid| -> Option<ty::RegionVid> { - let r1_outlives_r2 = self.universal_region_relations.outlives(r1, r2); - let r2_outlives_r1 = self.universal_region_relations.outlives(r2, r1); - match (r1_outlives_r2, r2_outlives_r1) { - (true, true) => Some(r1.min(r2)), - (true, false) => Some(r2), - (false, true) => Some(r1), - (false, false) => None, - } + let Some(&min_choice) = choice_regions.iter().find(|&r1| { + choice_regions.iter().all(|&r2| { + self.universal_region_relations.outlives(r2, *r1) + }) + }) else { + debug!("no choice region outlived by all others"); + return false; }; - let mut min_choice = choice_regions[0]; - for &other_option in &choice_regions[1..] { - debug!(?min_choice, ?other_option,); - match min(min_choice, other_option) { - Some(m) => min_choice = m, - None => { - debug!(?min_choice, ?other_option, "incomparable; no min choice",); - return false; - } - } - } let min_choice_scc = self.constraint_sccs.scc(min_choice); debug!(?min_choice, ?min_choice_scc); diff --git a/compiler/rustc_builtin_macros/src/alloc_error_handler.rs b/compiler/rustc_builtin_macros/src/alloc_error_handler.rs index 95e38e4b053..dcf500ddbd3 100644 --- a/compiler/rustc_builtin_macros/src/alloc_error_handler.rs +++ b/compiler/rustc_builtin_macros/src/alloc_error_handler.rs @@ -32,7 +32,7 @@ pub fn expand( (item, true, ecx.with_def_site_ctxt(fn_kind.sig.span)) } else { ecx.sess.parse_sess.span_diagnostic.span_err(item.span(), "alloc_error_handler must be a function"); - return vec![orig_item.clone()]; + return vec![orig_item]; }; // Generate a bunch of new items using the AllocFnFactory diff --git a/compiler/rustc_builtin_macros/src/concat_bytes.rs b/compiler/rustc_builtin_macros/src/concat_bytes.rs index 4c424ea430b..4f1a7d709ff 100644 --- a/compiler/rustc_builtin_macros/src/concat_bytes.rs +++ b/compiler/rustc_builtin_macros/src/concat_bytes.rs @@ -196,7 +196,7 @@ pub fn expand_concat_bytes( } } if !missing_literals.is_empty() { - let mut err = cx.struct_span_err(missing_literals.clone(), "expected a byte literal"); + let mut err = cx.struct_span_err(missing_literals, "expected a byte literal"); err.note("only byte literals (like `b\"foo\"`, `b's'`, and `[3, 4, 5]`) can be passed to `concat_bytes!()`"); err.emit(); return base::MacEager::expr(DummyResult::raw_expr(sp, true)); diff --git a/compiler/rustc_codegen_cranelift/.cirrus.yml b/compiler/rustc_codegen_cranelift/.cirrus.yml index 732edd66196..d627c2ee09c 100644 --- a/compiler/rustc_codegen_cranelift/.cirrus.yml +++ b/compiler/rustc_codegen_cranelift/.cirrus.yml @@ -12,8 +12,6 @@ task: folder: target prepare_script: - . $HOME/.cargo/env - - git config --global user.email "user@example.com" - - git config --global user.name "User" - ./y.rs prepare test_script: - . $HOME/.cargo/env diff --git a/compiler/rustc_codegen_cranelift/.github/workflows/main.yml b/compiler/rustc_codegen_cranelift/.github/workflows/main.yml index 5061010c86c..a6bb12a66a2 100644 --- a/compiler/rustc_codegen_cranelift/.github/workflows/main.yml +++ b/compiler/rustc_codegen_cranelift/.github/workflows/main.yml @@ -19,6 +19,7 @@ jobs: - name: Rustfmt run: | cargo fmt --check + rustfmt --check build_system/mod.rs build: runs-on: ${{ matrix.os }} @@ -28,7 +29,7 @@ jobs: fail-fast: false matrix: include: - - os: ubuntu-latest + - os: ubuntu-20.04 # FIXME switch to ubuntu-22.04 once #1303 is fixed env: TARGET_TRIPLE: x86_64-unknown-linux-gnu - os: macos-latest @@ -41,18 +42,22 @@ jobs: - os: ubuntu-latest env: TARGET_TRIPLE: aarch64-unknown-linux-gnu + # s390x requires QEMU 6.1 or greater, we could build it from source, but ubuntu 22.04 comes with 6.2 by default + - os: ubuntu-latest + env: + TARGET_TRIPLE: s390x-unknown-linux-gnu steps: - uses: actions/checkout@v3 - name: Cache cargo installed crates - uses: actions/cache@v2 + uses: actions/cache@v3 with: path: ~/.cargo/bin key: ${{ runner.os }}-cargo-installed-crates - name: Cache cargo registry and index - uses: actions/cache@v2 + uses: actions/cache@v3 with: path: | ~/.cargo/registry @@ -60,9 +65,9 @@ jobs: key: ${{ runner.os }}-cargo-registry-and-index-${{ hashFiles('**/Cargo.lock') }} - name: Cache cargo target dir - uses: actions/cache@v2 + uses: actions/cache@v3 with: - path: target + path: build/cg_clif key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('rust-toolchain', '**/Cargo.lock') }} - name: Install MinGW toolchain and wine @@ -78,11 +83,14 @@ jobs: sudo apt-get update sudo apt-get install -y gcc-aarch64-linux-gnu qemu-user - - name: Prepare dependencies + - name: Install s390x toolchain and qemu + if: matrix.env.TARGET_TRIPLE == 's390x-unknown-linux-gnu' run: | - git config --global user.email "user@example.com" - git config --global user.name "User" - ./y.rs prepare + sudo apt-get update + sudo apt-get install -y gcc-s390x-linux-gnu qemu-user + + - name: Prepare dependencies + run: ./y.rs prepare - name: Build without unstable features env: @@ -110,7 +118,7 @@ jobs: ./y.rs test - name: Package prebuilt cg_clif - run: tar cvfJ cg_clif.tar.xz build + run: tar cvfJ cg_clif.tar.xz dist - name: Upload prebuilt cg_clif if: matrix.env.TARGET_TRIPLE != 'x86_64-pc-windows-gnu' @@ -121,7 +129,7 @@ jobs: - name: Upload prebuilt cg_clif (cross compile) if: matrix.env.TARGET_TRIPLE == 'x86_64-pc-windows-gnu' - uses: actions/upload-artifact@v2 + uses: actions/upload-artifact@v3 with: name: cg_clif-${{ runner.os }}-cross-x86_64-mingw path: cg_clif.tar.xz @@ -147,13 +155,13 @@ jobs: - uses: actions/checkout@v3 - name: Cache cargo installed crates - uses: actions/cache@v2 + uses: actions/cache@v3 with: path: ~/.cargo/bin key: ${{ runner.os }}-${{ matrix.env.TARGET_TRIPLE }}-cargo-installed-crates - name: Cache cargo registry and index - uses: actions/cache@v2 + uses: actions/cache@v3 with: path: | ~/.cargo/registry @@ -161,9 +169,9 @@ jobs: key: ${{ runner.os }}-${{ matrix.env.TARGET_TRIPLE }}-cargo-registry-and-index-${{ hashFiles('**/Cargo.lock') }} - name: Cache cargo target dir - uses: actions/cache@v2 + uses: actions/cache@v3 with: - path: target + path: build/cg_clif key: ${{ runner.os }}-${{ matrix.env.TARGET_TRIPLE }}-cargo-build-target-${{ hashFiles('rust-toolchain', '**/Cargo.lock') }} - name: Set MinGW as the default toolchain @@ -172,8 +180,6 @@ jobs: - name: Prepare dependencies run: | - git config --global user.email "user@example.com" - git config --global user.name "User" git config --global core.autocrlf false rustc y.rs -o y.exe -g ./y.exe prepare @@ -198,24 +204,24 @@ jobs: # Enable extra checks $Env:CG_CLIF_ENABLE_VERIFIER=1 - + # WIP Disable some tests - + # This fails due to some weird argument handling by hyperfine, not an actual regression # more of a build system issue (Get-Content config.txt) -replace '(bench.simple-raytracer)', '# $1' | Out-File config.txt - - # This fails with a different output than expected + + # This fails with a different output than expected (Get-Content config.txt) -replace '(test.regex-shootout-regex-dna)', '# $1' | Out-File config.txt ./y.exe test - name: Package prebuilt cg_clif # don't use compression as xzip isn't supported by tar on windows and bzip2 hangs - run: tar cvf cg_clif.tar build + run: tar cvf cg_clif.tar dist - name: Upload prebuilt cg_clif - uses: actions/upload-artifact@v2 + uses: actions/upload-artifact@v3 with: name: cg_clif-${{ matrix.env.TARGET_TRIPLE }} path: cg_clif.tar diff --git a/compiler/rustc_codegen_cranelift/.github/workflows/nightly-cranelift.yml b/compiler/rustc_codegen_cranelift/.github/workflows/nightly-cranelift.yml index 0a3e7ca073b..d0d58d2a7ea 100644 --- a/compiler/rustc_codegen_cranelift/.github/workflows/nightly-cranelift.yml +++ b/compiler/rustc_codegen_cranelift/.github/workflows/nightly-cranelift.yml @@ -14,7 +14,7 @@ jobs: - uses: actions/checkout@v3 - name: Cache cargo installed crates - uses: actions/cache@v2 + uses: actions/cache@v3 with: path: ~/.cargo/bin key: ubuntu-latest-cargo-installed-crates diff --git a/compiler/rustc_codegen_cranelift/.github/workflows/rustc.yml b/compiler/rustc_codegen_cranelift/.github/workflows/rustc.yml index b8a98b83ebe..bef806318ef 100644 --- a/compiler/rustc_codegen_cranelift/.github/workflows/rustc.yml +++ b/compiler/rustc_codegen_cranelift/.github/workflows/rustc.yml @@ -11,13 +11,13 @@ jobs: - uses: actions/checkout@v3 - name: Cache cargo installed crates - uses: actions/cache@v2 + uses: actions/cache@v3 with: path: ~/.cargo/bin key: ${{ runner.os }}-cargo-installed-crates - name: Cache cargo registry and index - uses: actions/cache@v2 + uses: actions/cache@v3 with: path: | ~/.cargo/registry @@ -25,9 +25,9 @@ jobs: key: ${{ runner.os }}-cargo-registry-and-index-${{ hashFiles('**/Cargo.lock') }} - name: Cache cargo target dir - uses: actions/cache@v2 + uses: actions/cache@v3 with: - path: target + path: build/cg_clif key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('rust-toolchain', '**/Cargo.lock') }} - name: Prepare dependencies @@ -49,13 +49,13 @@ jobs: - uses: actions/checkout@v3 - name: Cache cargo installed crates - uses: actions/cache@v2 + uses: actions/cache@v3 with: path: ~/.cargo/bin key: ${{ runner.os }}-cargo-installed-crates - name: Cache cargo registry and index - uses: actions/cache@v2 + uses: actions/cache@v3 with: path: | ~/.cargo/registry @@ -63,9 +63,9 @@ jobs: key: ${{ runner.os }}-cargo-registry-and-index-${{ hashFiles('**/Cargo.lock') }} - name: Cache cargo target dir - uses: actions/cache@v2 + uses: actions/cache@v3 with: - path: target + path: build/cg_clif key: ${{ runner.os }}-cargo-build-target-${{ hashFiles('rust-toolchain', '**/Cargo.lock') }} - name: Prepare dependencies diff --git a/compiler/rustc_codegen_cranelift/.gitignore b/compiler/rustc_codegen_cranelift/.gitignore index fae09592c6a..b443fd58a1b 100644 --- a/compiler/rustc_codegen_cranelift/.gitignore +++ b/compiler/rustc_codegen_cranelift/.gitignore @@ -14,5 +14,6 @@ perf.data.old /build_sysroot/sysroot_src /build_sysroot/compiler-builtins /build_sysroot/rustc_version +/dist /rust /download diff --git a/compiler/rustc_codegen_cranelift/.vscode/settings.json b/compiler/rustc_codegen_cranelift/.vscode/settings.json index 13301bf20a5..bc914e37d2b 100644 --- a/compiler/rustc_codegen_cranelift/.vscode/settings.json +++ b/compiler/rustc_codegen_cranelift/.vscode/settings.json @@ -4,16 +4,10 @@ "rust-analyzer.imports.granularity.enforce": true, "rust-analyzer.imports.granularity.group": "module", "rust-analyzer.imports.prefix": "crate", - "rust-analyzer.cargo.features": ["unstable-features"], + "rust-analyzer.cargo.features": ["unstable-features", "__check_build_system_using_ra"], "rust-analyzer.linkedProjects": [ "./Cargo.toml", - //"./build_sysroot/sysroot_src/library/std/Cargo.toml", { - "roots": [ - "./example/mini_core.rs", - "./example/mini_core_hello_world.rs", - "./example/mod_bench.rs" - ], "crates": [ { "root_module": "./example/mini_core.rs", @@ -36,34 +30,11 @@ ] }, { - "roots": ["./example/std_example.rs"], + "sysroot_src": "./build_sysroot/sysroot_src/library", "crates": [ { "root_module": "./example/std_example.rs", - "edition": "2018", - "deps": [{ "crate": 1, "name": "std" }], - "cfg": [], - }, - { - "root_module": "./build_sysroot/sysroot_src/library/std/src/lib.rs", - "edition": "2018", - "deps": [], - "cfg": [], - }, - ] - }, - { - "roots": ["./y.rs"], - "crates": [ - { - "root_module": "./y.rs", - "edition": "2018", - "deps": [{ "crate": 1, "name": "std" }], - "cfg": [], - }, - { - "root_module": "./build_sysroot/sysroot_src/library/std/src/lib.rs", - "edition": "2018", + "edition": "2015", "deps": [], "cfg": [], }, diff --git a/compiler/rustc_codegen_cranelift/Cargo.lock b/compiler/rustc_codegen_cranelift/Cargo.lock index 3b406036c35..e4d3e9ca5ae 100644 --- a/compiler/rustc_codegen_cranelift/Cargo.lock +++ b/compiler/rustc_codegen_cranelift/Cargo.lock @@ -15,9 +15,9 @@ dependencies = [ [[package]] name = "anyhow" -version = "1.0.60" +version = "1.0.66" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c794e162a5eff65c72ef524dfe393eb923c354e350bb78b9c7383df13f3bc142" +checksum = "216261ddc8289130e551ddcd5ce8a064710c0d064a4d2895c67151c92b5443f6" [[package]] name = "arrayvec" @@ -39,9 +39,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a" [[package]] name = "bumpalo" -version = "3.11.0" +version = "3.11.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c1ad822118d20d2c234f427000d5acc36eabe1e29a348c89b63dd60b13f28e5d" +checksum = "572f695136211188308f16ad2ca5c851a712c464060ae6974944458eb83880ba" [[package]] name = "byteorder" @@ -57,24 +57,25 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd" [[package]] name = "cranelift-bforest" -version = "0.88.1" +version = "0.90.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "44409ccf2d0f663920cab563d2b79fcd6b2e9a2bcc6e929fef76c8f82ad6c17a" +checksum = "b62c772976416112fa4484cbd688cb6fb35fd430005c1c586224fc014018abad" dependencies = [ "cranelift-entity", ] [[package]] name = "cranelift-codegen" -version = "0.88.1" +version = "0.90.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "98de2018ad96eb97f621f7d6b900a0cc661aec8d02ea4a50e56ecb48e5a2fcaf" +checksum = "9b40ed2dd13c2ac7e24f88a3090c68ad3414eb1d066a95f8f1f7b3b819cb4e46" dependencies = [ "arrayvec", "bumpalo", "cranelift-bforest", "cranelift-codegen-meta", "cranelift-codegen-shared", + "cranelift-egraph", "cranelift-entity", "cranelift-isle", "gimli", @@ -86,30 +87,44 @@ dependencies = [ [[package]] name = "cranelift-codegen-meta" -version = "0.88.1" +version = "0.90.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "5287ce36e6c4758fbaf298bd1a8697ad97a4f2375a3d1b61142ea538db4877e5" +checksum = "bb927a8f1c27c34ee3759b6b0ffa528d2330405d5cc4511f0cab33fe2279f4b5" dependencies = [ "cranelift-codegen-shared", ] [[package]] name = "cranelift-codegen-shared" -version = "0.88.1" +version = "0.90.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "2855c24219e2f08827f3f4ffb2da92e134ae8d8ecc185b11ec8f9878cf5f588e" +checksum = "43dfa417b884a9ab488d95fd6b93b25e959321fe7bfd7a0a960ba5d7fb7ab927" + +[[package]] +name = "cranelift-egraph" +version = "0.90.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "e0a66b39785efd8513d2cca967ede56d6cc57c8d7986a595c7c47d0c78de8dce" +dependencies = [ + "cranelift-entity", + "fxhash", + "hashbrown", + "indexmap", + "log", + "smallvec", +] [[package]] name = "cranelift-entity" -version = "0.88.1" +version = "0.90.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "0b65673279d75d34bf11af9660ae2dbd1c22e6d28f163f5c72f4e1dc56d56103" +checksum = "0637ffde963cb5d759bc4d454cfa364b6509e6c74cdaa21298add0ed9276f346" [[package]] name = "cranelift-frontend" -version = "0.88.1" +version = "0.90.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "3ed2b3d7a4751163f6c4a349205ab1b7d9c00eecf19dcea48592ef1f7688eefc" +checksum = "fb72b8342685e850cb037350418f62cc4fc55d6c2eb9c7ca01b82f9f1a6f3d56" dependencies = [ "cranelift-codegen", "log", @@ -119,15 +134,15 @@ dependencies = [ [[package]] name = "cranelift-isle" -version = "0.88.1" +version = "0.90.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "3be64cecea9d90105fc6a2ba2d003e98c867c1d6c4c86cc878f97ad9fb916293" +checksum = "850579cb9e4b448f7c301f1e6e6cbad99abe3f1f1d878a4994cb66e33c6db8cd" [[package]] name = "cranelift-jit" -version = "0.88.1" +version = "0.90.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "f98ed42a70a0c9c388e34ec9477f57fc7300f541b1e5136a0e2ea02b1fac6015" +checksum = "9add822ad66dcbe152b5ab57de10240a2df4505099f2f6c27159acb711890bd4" dependencies = [ "anyhow", "cranelift-codegen", @@ -138,14 +153,15 @@ dependencies = [ "log", "region", "target-lexicon", + "wasmtime-jit-icache-coherence", "windows-sys", ] [[package]] name = "cranelift-module" -version = "0.88.1" +version = "0.90.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "d658ac7f156708bfccb647216cc8b9387469f50d352ba4ad80150541e4ae2d49" +checksum = "406b772626fc2664864cf947f3895a23b619895c7fff635f3622e2d857f4492f" dependencies = [ "anyhow", "cranelift-codegen", @@ -153,9 +169,9 @@ dependencies = [ [[package]] name = "cranelift-native" -version = "0.88.1" +version = "0.90.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c4a03a6ac1b063e416ca4b93f6247978c991475e8271465340caa6f92f3c16a4" +checksum = "2d0a279e5bcba3e0466c734d8d8eb6bfc1ad29e95c37f3e4955b492b5616335e" dependencies = [ "cranelift-codegen", "libc", @@ -164,9 +180,9 @@ dependencies = [ [[package]] name = "cranelift-object" -version = "0.88.1" +version = "0.90.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "eef0b4119b645b870a43a036d76c0ada3a076b1f82e8b8487659304c8b09049b" +checksum = "39793c550f0c1d7db96c2fc1324583670c8143befe6edbfbaf1c68aba53be983" dependencies = [ "anyhow", "cranelift-codegen", @@ -186,6 +202,12 @@ dependencies = [ ] [[package]] +name = "fallible-iterator" +version = "0.2.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "4443176a9f2c162692bd3d352d745ef9413eec5782a80d8fd6f8a1ac692a07f7" + +[[package]] name = "fxhash" version = "0.2.1" source = "registry+https://github.com/rust-lang/crates.io-index" @@ -196,9 +218,9 @@ dependencies = [ [[package]] name = "getrandom" -version = "0.2.7" +version = "0.2.8" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "4eb1a864a501629691edf6c15a593b7a51eebaa1e8468e9ddc623de7c9b58ec6" +checksum = "c05aeb6a22b8f62540c194aac980f2115af067bfe15a0734d7277a768d396b31" dependencies = [ "cfg-if", "libc", @@ -211,7 +233,9 @@ version = "0.26.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "22030e2c5a68ec659fde1e949a745124b48e6fa8b045b7ed5bd1fe4ccc5c4e5d" dependencies = [ + "fallible-iterator", "indexmap", + "stable_deref_trait", ] [[package]] @@ -225,9 +249,9 @@ dependencies = [ [[package]] name = "indexmap" -version = "1.9.1" +version = "1.9.2" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "10a35a97730320ffe8e2d410b5d3b69279b98d2c14bdb8b70ea89ecf7888d41e" +checksum = "1885e79c1fc4b10f0e172c475f458b7f7b93061064d98c3293e98c5ba0c8b399" dependencies = [ "autocfg", "hashbrown", @@ -235,15 +259,15 @@ dependencies = [ [[package]] name = "libc" -version = "0.2.127" +version = "0.2.138" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "505e71a4706fa491e9b1b55f51b95d4037d0821ee40131190475f692b35b009b" +checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8" [[package]] name = "libloading" -version = "0.7.3" +version = "0.7.4" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "efbc0f03f9a775e9f6aed295c6a1ba2253c5757a9e03d55c6caa46a681abcddd" +checksum = "b67380fd3b2fbe7527a606e18729d21c6f3951633d0500574c4dc22d2d638b9f" dependencies = [ "cfg-if", "winapi", @@ -287,15 +311,15 @@ dependencies = [ [[package]] name = "once_cell" -version = "1.13.0" +version = "1.16.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "18a6dbe30758c9f83eb00cbea4ac95966305f5a7772f3f42ebfc7fc7eddbd8e1" +checksum = "86f0b0d4bf799edbc74508c1e8bf170ff5f41238e5f8225603ca7caaae2b7860" [[package]] name = "regalloc2" -version = "0.3.2" +version = "0.4.2" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "d43a209257d978ef079f3d446331d0f1794f5e0fc19b306a199983857833a779" +checksum = "91b2eab54204ea0117fe9a060537e0b07a4e72f7c7d182361ecc346cab2240e5" dependencies = [ "fxhash", "log", @@ -342,15 +366,21 @@ checksum = "03b634d87b960ab1a38c4fe143b508576f075e7c978bfad18217645ebfdfa2ec" [[package]] name = "smallvec" -version = "1.9.0" +version = "1.10.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "2fd0db749597d91ff862fd1d55ea87f7855a744a8425a64695b6fca237d1dad1" +checksum = "a507befe795404456341dfab10cef66ead4c041f62b8b11bbb92bffe5d0953e0" + +[[package]] +name = "stable_deref_trait" +version = "1.2.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "a8f112729512f8e442d81f95a8a7ddf2b7c6b8a1a6f509a95864142b30cab2d3" [[package]] name = "target-lexicon" -version = "0.12.4" +version = "0.12.5" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c02424087780c9b71cc96799eaeddff35af2bc513278cda5c99fc1f5d026d3c1" +checksum = "9410d0f6853b1d94f0e519fb95df60f29d2c1eff2d921ffdf01a4c8a3b54f12d" [[package]] name = "version_check" @@ -365,6 +395,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423" [[package]] +name = "wasmtime-jit-icache-coherence" +version = "2.0.1" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "e6bbabb309c06cc238ee91b1455b748c45f0bdcab0dda2c2db85b0a1e69fcb66" +dependencies = [ + "cfg-if", + "libc", + "windows-sys", +] + +[[package]] name = "winapi" version = "0.3.9" source = "registry+https://github.com/rust-lang/crates.io-index" diff --git a/compiler/rustc_codegen_cranelift/Cargo.toml b/compiler/rustc_codegen_cranelift/Cargo.toml index 0fdd5de118c..2b216ca072f 100644 --- a/compiler/rustc_codegen_cranelift/Cargo.toml +++ b/compiler/rustc_codegen_cranelift/Cargo.toml @@ -3,17 +3,24 @@ name = "rustc_codegen_cranelift" version = "0.1.0" edition = "2021" +[[bin]] +# This is used just to teach rust-analyzer how to check the build system. required-features is used +# to disable it for regular builds. +name = "y" +path = "./y.rs" +required-features = ["__check_build_system_using_ra"] + [lib] crate-type = ["dylib"] [dependencies] # These have to be in sync with each other -cranelift-codegen = { version = "0.88.1", features = ["unwind", "all-arch"] } -cranelift-frontend = "0.88.1" -cranelift-module = "0.88.1" -cranelift-native = "0.88.1" -cranelift-jit = { version = "0.88.1", optional = true } -cranelift-object = "0.88.1" +cranelift-codegen = { version = "0.90.1", features = ["unwind", "all-arch"] } +cranelift-frontend = "0.90.1" +cranelift-module = "0.90.1" +cranelift-native = "0.90.1" +cranelift-jit = { version = "0.90.1", optional = true } +cranelift-object = "0.90.1" target-lexicon = "0.12.0" gimli = { version = "0.26.0", default-features = false, features = ["write"]} object = { version = "0.29.0", default-features = false, features = ["std", "read_core", "write", "archive", "coff", "elf", "macho", "pe"] } @@ -39,6 +46,7 @@ smallvec = "1.8.1" unstable-features = ["jit", "inline_asm"] jit = ["cranelift-jit", "libloading"] inline_asm = [] +__check_build_system_using_ra = [] [package.metadata.rust-analyzer] rustc_private = true diff --git a/compiler/rustc_codegen_cranelift/Readme.md b/compiler/rustc_codegen_cranelift/Readme.md index 1e84c7fa365..0e9c77244d4 100644 --- a/compiler/rustc_codegen_cranelift/Readme.md +++ b/compiler/rustc_codegen_cranelift/Readme.md @@ -37,7 +37,7 @@ Assuming `$cg_clif_dir` is the directory you cloned this repo into and you follo In the directory with your project (where you can do the usual `cargo build`), run: ```bash -$ $cg_clif_dir/build/cargo-clif build +$ $cg_clif_dir/dist/cargo-clif build ``` This will build your project with rustc_codegen_cranelift instead of the usual LLVM backend. diff --git a/compiler/rustc_codegen_cranelift/build_sysroot/Cargo.lock b/compiler/rustc_codegen_cranelift/build_sysroot/Cargo.lock index f6a9cb67290..bba3210536e 100644 --- a/compiler/rustc_codegen_cranelift/build_sysroot/Cargo.lock +++ b/compiler/rustc_codegen_cranelift/build_sysroot/Cargo.lock @@ -4,9 +4,9 @@ version = 3 [[package]] name = "addr2line" -version = "0.16.0" +version = "0.17.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "3e61f2b7f93d2c7d2b08263acaa4a363b3e276806c68af6134c44f523bf1aacd" +checksum = "b9ecd88a8c8378ca913a680cd98f0f13ac67383d35993f86c90a70e3f137816b" dependencies = [ "compiler_builtins", "gimli", @@ -33,26 +33,10 @@ dependencies = [ ] [[package]] -name = "autocfg" -version = "1.1.0" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa" - -[[package]] name = "cc" -version = "1.0.73" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "2fff2a6927b3bb87f9595d67196a70493f627687a71d87a0d692242c33f58c11" - -[[package]] -name = "cfg-if" -version = "0.1.10" +version = "1.0.77" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822" -dependencies = [ - "compiler_builtins", - "rustc-std-workspace-core", -] +checksum = "e9f73505338f7d905b19d18738976aae232eb46b8efc15554ffc56deb5d9ebe4" [[package]] name = "cfg-if" @@ -66,9 +50,9 @@ dependencies = [ [[package]] name = "compiler_builtins" -version = "0.1.82" +version = "0.1.85" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "18cd7635fea7bb481ea543b392789844c1ad581299da70184c7175ce3af76603" +checksum = "13e81c6cd7ab79f51a0c927d22858d61ad12bd0b3865f0b13ece02a4486aeabb" dependencies = [ "rustc-std-workspace-core", ] @@ -111,9 +95,9 @@ dependencies = [ [[package]] name = "gimli" -version = "0.25.0" +version = "0.26.2" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "f0a01e0497841a3b2db4f8afa483cce65f7e96a3498bd6c541734792aeac8fe7" +checksum = "22030e2c5a68ec659fde1e949a745124b48e6fa8b045b7ed5bd1fe4ccc5c4e5d" dependencies = [ "compiler_builtins", "rustc-std-workspace-alloc", @@ -145,9 +129,9 @@ dependencies = [ [[package]] name = "libc" -version = "0.2.135" +version = "0.2.138" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "68783febc7782c6c5cb401fbda4de5a9898be1762314da0bb2c10ced61f18b0c" +checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8" dependencies = [ "rustc-std-workspace-core", ] @@ -164,12 +148,11 @@ dependencies = [ [[package]] name = "miniz_oxide" -version = "0.4.4" +version = "0.5.4" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a92518e98c078586bc6c934028adcca4c92a53d6a958196de835170a01d84e4b" +checksum = "96590ba8f175222643a85693f33d26e9c8a015f599c216509b1a6894af675d34" dependencies = [ "adler", - "autocfg", "compiler_builtins", "rustc-std-workspace-alloc", "rustc-std-workspace-core", @@ -177,9 +160,9 @@ dependencies = [ [[package]] name = "object" -version = "0.26.2" +version = "0.29.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "39f37e50073ccad23b6d09bcb5b263f4e76d3bb6038e4a3c08e52162ffa8abc2" +checksum = "21158b2c33aa6d4561f1c0a6ea283ca92bc54802a93b263e910746d679a7eb53" dependencies = [ "compiler_builtins", "memchr", @@ -192,7 +175,7 @@ name = "panic_abort" version = "0.0.0" dependencies = [ "alloc", - "cfg-if 0.1.10", + "cfg-if", "compiler_builtins", "core", "libc", @@ -203,7 +186,7 @@ name = "panic_unwind" version = "0.0.0" dependencies = [ "alloc", - "cfg-if 0.1.10", + "cfg-if", "compiler_builtins", "core", "libc", @@ -255,7 +238,7 @@ version = "0.0.0" dependencies = [ "addr2line", "alloc", - "cfg-if 1.0.0", + "cfg-if", "compiler_builtins", "core", "dlmalloc", @@ -277,7 +260,7 @@ dependencies = [ name = "std_detect" version = "0.1.5" dependencies = [ - "cfg-if 1.0.0", + "cfg-if", "compiler_builtins", "libc", "rustc-std-workspace-alloc", @@ -299,7 +282,7 @@ dependencies = [ name = "test" version = "0.0.0" dependencies = [ - "cfg-if 0.1.10", + "cfg-if", "core", "getopts", "libc", @@ -325,7 +308,7 @@ name = "unwind" version = "0.0.0" dependencies = [ "cc", - "cfg-if 0.1.10", + "cfg-if", "compiler_builtins", "core", "libc", diff --git a/compiler/rustc_codegen_cranelift/build_system/abi_cafe.rs b/compiler/rustc_codegen_cranelift/build_system/abi_cafe.rs index fae5b271636..a081fdaa1c7 100644 --- a/compiler/rustc_codegen_cranelift/build_system/abi_cafe.rs +++ b/compiler/rustc_codegen_cranelift/build_system/abi_cafe.rs @@ -1,16 +1,21 @@ -use std::env; use std::path::Path; use super::build_sysroot; use super::config; -use super::prepare; -use super::utils::{cargo_command, spawn_and_wait}; +use super::path::Dirs; +use super::prepare::GitRepo; +use super::utils::{spawn_and_wait, CargoProject, Compiler}; use super::SysrootKind; +pub(crate) static ABI_CAFE_REPO: GitRepo = + GitRepo::github("Gankra", "abi-cafe", "4c6dc8c9c687e2b3a760ff2176ce236872b37212", "abi-cafe"); + +static ABI_CAFE: CargoProject = CargoProject::new(&ABI_CAFE_REPO.source_dir(), "abi_cafe"); + pub(crate) fn run( channel: &str, sysroot_kind: SysrootKind, - target_dir: &Path, + dirs: &Dirs, cg_clif_dylib: &Path, host_triple: &str, target_triple: &str, @@ -27,26 +32,25 @@ pub(crate) fn run( eprintln!("Building sysroot for abi-cafe"); build_sysroot::build_sysroot( + dirs, channel, sysroot_kind, - target_dir, cg_clif_dylib, host_triple, target_triple, ); eprintln!("Running abi-cafe"); - let abi_cafe_path = prepare::ABI_CAFE.source_dir(); - env::set_current_dir(abi_cafe_path.clone()).unwrap(); let pairs = ["rustc_calls_cgclif", "cgclif_calls_rustc", "cgclif_calls_cc", "cc_calls_cgclif"]; - let mut cmd = cargo_command("cargo", "run", Some(target_triple), &abi_cafe_path); + let mut cmd = ABI_CAFE.run(&Compiler::host(), dirs); cmd.arg("--"); cmd.arg("--pairs"); cmd.args(pairs); cmd.arg("--add-rustc-codegen-backend"); cmd.arg(format!("cgclif:{}", cg_clif_dylib.display())); + cmd.current_dir(ABI_CAFE.source_dir(dirs)); spawn_and_wait(cmd); } diff --git a/compiler/rustc_codegen_cranelift/build_system/build_backend.rs b/compiler/rustc_codegen_cranelift/build_system/build_backend.rs index cda468bcfa2..fde8ef424cc 100644 --- a/compiler/rustc_codegen_cranelift/build_system/build_backend.rs +++ b/compiler/rustc_codegen_cranelift/build_system/build_backend.rs @@ -1,16 +1,19 @@ use std::env; use std::path::PathBuf; +use super::path::{Dirs, RelPath}; use super::rustc_info::get_file_name; -use super::utils::{cargo_command, is_ci}; +use super::utils::{is_ci, CargoProject, Compiler}; + +static CG_CLIF: CargoProject = CargoProject::new(&RelPath::SOURCE, "cg_clif"); pub(crate) fn build_backend( + dirs: &Dirs, channel: &str, host_triple: &str, use_unstable_features: bool, ) -> PathBuf { - let source_dir = std::env::current_dir().unwrap(); - let mut cmd = cargo_command("cargo", "build", Some(host_triple), &source_dir); + let mut cmd = CG_CLIF.build(&Compiler::host(), dirs); cmd.env("CARGO_BUILD_INCREMENTAL", "true"); // Force incr comp even in release mode @@ -41,8 +44,8 @@ pub(crate) fn build_backend( eprintln!("[BUILD] rustc_codegen_cranelift"); super::utils::spawn_and_wait(cmd); - source_dir - .join("target") + CG_CLIF + .target_dir(dirs) .join(host_triple) .join(channel) .join(get_file_name("rustc_codegen_cranelift", "dylib")) diff --git a/compiler/rustc_codegen_cranelift/build_system/build_sysroot.rs b/compiler/rustc_codegen_cranelift/build_system/build_sysroot.rs index 856aecc49fd..cbbf09b9b97 100644 --- a/compiler/rustc_codegen_cranelift/build_system/build_sysroot.rs +++ b/compiler/rustc_codegen_cranelift/build_system/build_sysroot.rs @@ -1,57 +1,60 @@ use std::fs; -use std::path::{Path, PathBuf}; +use std::path::Path; use std::process::{self, Command}; +use super::path::{Dirs, RelPath}; use super::rustc_info::{get_file_name, get_rustc_version, get_wrapper_file_name}; -use super::utils::{cargo_command, spawn_and_wait, try_hard_link}; +use super::utils::{spawn_and_wait, try_hard_link, CargoProject, Compiler}; use super::SysrootKind; +static DIST_DIR: RelPath = RelPath::DIST; +static BIN_DIR: RelPath = RelPath::DIST.join("bin"); +static LIB_DIR: RelPath = RelPath::DIST.join("lib"); +static RUSTLIB_DIR: RelPath = LIB_DIR.join("rustlib"); + pub(crate) fn build_sysroot( + dirs: &Dirs, channel: &str, sysroot_kind: SysrootKind, - target_dir: &Path, cg_clif_dylib_src: &Path, host_triple: &str, target_triple: &str, ) { eprintln!("[BUILD] sysroot {:?}", sysroot_kind); - if target_dir.exists() { - fs::remove_dir_all(target_dir).unwrap(); - } - fs::create_dir_all(target_dir.join("bin")).unwrap(); - fs::create_dir_all(target_dir.join("lib")).unwrap(); + DIST_DIR.ensure_fresh(dirs); + BIN_DIR.ensure_exists(dirs); + LIB_DIR.ensure_exists(dirs); // Copy the backend - let cg_clif_dylib_path = target_dir - .join(if cfg!(windows) { - // Windows doesn't have rpath support, so the cg_clif dylib needs to be next to the - // binaries. - "bin" - } else { - "lib" - }) - .join(get_file_name("rustc_codegen_cranelift", "dylib")); + let cg_clif_dylib_path = if cfg!(windows) { + // Windows doesn't have rpath support, so the cg_clif dylib needs to be next to the + // binaries. + BIN_DIR + } else { + LIB_DIR + } + .to_path(dirs) + .join(get_file_name("rustc_codegen_cranelift", "dylib")); try_hard_link(cg_clif_dylib_src, &cg_clif_dylib_path); // Build and copy rustc and cargo wrappers - for wrapper in ["rustc-clif", "cargo-clif"] { + for wrapper in ["rustc-clif", "rustdoc-clif", "cargo-clif"] { let wrapper_name = get_wrapper_file_name(wrapper, "bin"); let mut build_cargo_wrapper_cmd = Command::new("rustc"); build_cargo_wrapper_cmd - .arg(PathBuf::from("scripts").join(format!("{wrapper}.rs"))) + .arg(RelPath::SCRIPTS.to_path(dirs).join(&format!("{wrapper}.rs"))) .arg("-o") - .arg(target_dir.join(wrapper_name)) + .arg(DIST_DIR.to_path(dirs).join(wrapper_name)) .arg("-g"); spawn_and_wait(build_cargo_wrapper_cmd); } let default_sysroot = super::rustc_info::get_default_sysroot(); - let rustlib = target_dir.join("lib").join("rustlib"); - let host_rustlib_lib = rustlib.join(host_triple).join("lib"); - let target_rustlib_lib = rustlib.join(target_triple).join("lib"); + let host_rustlib_lib = RUSTLIB_DIR.to_path(dirs).join(host_triple).join("lib"); + let target_rustlib_lib = RUSTLIB_DIR.to_path(dirs).join(target_triple).join("lib"); fs::create_dir_all(&host_rustlib_lib).unwrap(); fs::create_dir_all(&target_rustlib_lib).unwrap(); @@ -112,24 +115,18 @@ pub(crate) fn build_sysroot( } } SysrootKind::Clif => { - build_clif_sysroot_for_triple( - channel, - target_dir, - host_triple, - &cg_clif_dylib_path, - None, - ); + build_clif_sysroot_for_triple(dirs, channel, host_triple, &cg_clif_dylib_path, None); if host_triple != target_triple { // When cross-compiling it is often necessary to manually pick the right linker - let linker = if target_triple == "aarch64-unknown-linux-gnu" { - Some("aarch64-linux-gnu-gcc") - } else { - None + let linker = match target_triple { + "aarch64-unknown-linux-gnu" => Some("aarch64-linux-gnu-gcc"), + "s390x-unknown-linux-gnu" => Some("s390x-linux-gnu-gcc"), + _ => None, }; build_clif_sysroot_for_triple( + dirs, channel, - target_dir, target_triple, &cg_clif_dylib_path, linker, @@ -142,21 +139,26 @@ pub(crate) fn build_sysroot( let file = file.unwrap().path(); let filename = file.file_name().unwrap().to_str().unwrap(); if filename.contains("std-") && !filename.contains(".rlib") { - try_hard_link(&file, target_dir.join("lib").join(file.file_name().unwrap())); + try_hard_link(&file, LIB_DIR.to_path(dirs).join(file.file_name().unwrap())); } } } } } +// FIXME move to download/ or dist/ +pub(crate) static SYSROOT_RUSTC_VERSION: RelPath = RelPath::BUILD_SYSROOT.join("rustc_version"); +pub(crate) static SYSROOT_SRC: RelPath = RelPath::BUILD_SYSROOT.join("sysroot_src"); +static STANDARD_LIBRARY: CargoProject = CargoProject::new(&RelPath::BUILD_SYSROOT, "build_sysroot"); + fn build_clif_sysroot_for_triple( + dirs: &Dirs, channel: &str, - target_dir: &Path, triple: &str, cg_clif_dylib_path: &Path, linker: Option<&str>, ) { - match fs::read_to_string(Path::new("build_sysroot").join("rustc_version")) { + match fs::read_to_string(SYSROOT_RUSTC_VERSION.to_path(dirs)) { Err(e) => { eprintln!("Failed to get rustc version for patched sysroot source: {}", e); eprintln!("Hint: Try `./y.rs prepare` to patch the sysroot source"); @@ -174,7 +176,7 @@ fn build_clif_sysroot_for_triple( } } - let build_dir = Path::new("build_sysroot").join("target").join(triple).join(channel); + let build_dir = STANDARD_LIBRARY.target_dir(dirs).join(triple).join(channel); if !super::config::get_bool("keep_sysroot") { // Cleanup the deps dir, but keep build scripts and the incremental cache for faster @@ -185,27 +187,27 @@ fn build_clif_sysroot_for_triple( } // Build sysroot - let mut build_cmd = cargo_command("cargo", "build", Some(triple), Path::new("build_sysroot")); let mut rustflags = "-Zforce-unstable-if-unmarked -Cpanic=abort".to_string(); rustflags.push_str(&format!(" -Zcodegen-backend={}", cg_clif_dylib_path.to_str().unwrap())); - rustflags.push_str(&format!(" --sysroot={}", target_dir.to_str().unwrap())); + rustflags.push_str(&format!(" --sysroot={}", DIST_DIR.to_path(dirs).to_str().unwrap())); if channel == "release" { - build_cmd.arg("--release"); rustflags.push_str(" -Zmir-opt-level=3"); } if let Some(linker) = linker { use std::fmt::Write; write!(rustflags, " -Clinker={}", linker).unwrap(); } - build_cmd.env("RUSTFLAGS", rustflags); + let mut compiler = Compiler::with_triple(triple.to_owned()); + compiler.rustflags = rustflags; + let mut build_cmd = STANDARD_LIBRARY.build(&compiler, dirs); + if channel == "release" { + build_cmd.arg("--release"); + } build_cmd.env("__CARGO_DEFAULT_LIB_METADATA", "cg_clif"); spawn_and_wait(build_cmd); // Copy all relevant files to the sysroot - for entry in - fs::read_dir(Path::new("build_sysroot/target").join(triple).join(channel).join("deps")) - .unwrap() - { + for entry in fs::read_dir(build_dir.join("deps")).unwrap() { let entry = entry.unwrap(); if let Some(ext) = entry.path().extension() { if ext == "rmeta" || ext == "d" || ext == "dSYM" || ext == "clif" { @@ -216,7 +218,7 @@ fn build_clif_sysroot_for_triple( }; try_hard_link( entry.path(), - target_dir.join("lib").join("rustlib").join(triple).join("lib").join(entry.file_name()), + RUSTLIB_DIR.to_path(dirs).join(triple).join("lib").join(entry.file_name()), ); } } diff --git a/compiler/rustc_codegen_cranelift/build_system/mod.rs b/compiler/rustc_codegen_cranelift/build_system/mod.rs index b25270d832c..1afc9a55c73 100644 --- a/compiler/rustc_codegen_cranelift/build_system/mod.rs +++ b/compiler/rustc_codegen_cranelift/build_system/mod.rs @@ -8,20 +8,37 @@ mod abi_cafe; mod build_backend; mod build_sysroot; mod config; +mod path; mod prepare; mod rustc_info; mod tests; mod utils; +const USAGE: &str = r#"The build system of cg_clif. + +USAGE: + ./y.rs prepare [--out-dir DIR] + ./y.rs build [--debug] [--sysroot none|clif|llvm] [--out-dir DIR] [--no-unstable-features] + ./y.rs test [--debug] [--sysroot none|clif|llvm] [--out-dir DIR] [--no-unstable-features] + +OPTIONS: + --sysroot none|clif|llvm + Which sysroot libraries to use: + `none` will not include any standard library in the sysroot. + `clif` will build the standard library using Cranelift. + `llvm` will use the pre-compiled standard library of rustc which is compiled with LLVM. + + --out-dir DIR + Specify the directory in which the download, build and dist directories are stored. + By default this is the working directory. + + --no-unstable-features + fSome features are not yet ready for production usage. This option will disable these + features. This includes the JIT mode and inline assembly support. +"#; + fn usage() { - eprintln!("Usage:"); - eprintln!(" ./y.rs prepare"); - eprintln!( - " ./y.rs build [--debug] [--sysroot none|clif|llvm] [--target-dir DIR] [--no-unstable-features]" - ); - eprintln!( - " ./y.rs test [--debug] [--sysroot none|clif|llvm] [--target-dir DIR] [--no-unstable-features]" - ); + eprintln!("{USAGE}"); } macro_rules! arg_error { @@ -34,6 +51,7 @@ macro_rules! arg_error { #[derive(PartialEq, Debug)] enum Command { + Prepare, Build, Test, } @@ -48,8 +66,6 @@ pub(crate) enum SysrootKind { pub fn main() { env::set_var("CG_CLIF_DISPLAY_CG_TIME", "1"); env::set_var("CG_CLIF_DISABLE_INCR_CACHE", "1"); - // The target dir is expected in the default location. Guard against the user changing it. - env::set_var("CARGO_TARGET_DIR", "target"); if is_ci() { // Disabling incr comp reduces cache size and incr comp doesn't save as much on CI anyway @@ -58,13 +74,7 @@ pub fn main() { let mut args = env::args().skip(1); let command = match args.next().as_deref() { - Some("prepare") => { - if args.next().is_some() { - arg_error!("./y.rs prepare doesn't expect arguments"); - } - prepare::prepare(); - process::exit(0); - } + Some("prepare") => Command::Prepare, Some("build") => Command::Build, Some("test") => Command::Test, Some(flag) if flag.starts_with('-') => arg_error!("Expected command found flag {}", flag), @@ -75,15 +85,15 @@ pub fn main() { } }; - let mut target_dir = PathBuf::from("build"); + let mut out_dir = PathBuf::from("."); let mut channel = "release"; let mut sysroot_kind = SysrootKind::Clif; let mut use_unstable_features = true; while let Some(arg) = args.next().as_deref() { match arg { - "--target-dir" => { - target_dir = PathBuf::from(args.next().unwrap_or_else(|| { - arg_error!("--target-dir requires argument"); + "--out-dir" => { + out_dir = PathBuf::from(args.next().unwrap_or_else(|| { + arg_error!("--out-dir requires argument"); })) } "--debug" => channel = "debug", @@ -101,7 +111,6 @@ pub fn main() { arg => arg_error!("Unexpected argument {}", arg), } } - target_dir = std::env::current_dir().unwrap().join(target_dir); let host_triple = if let Ok(host_triple) = std::env::var("HOST_TRIPLE") { host_triple @@ -122,13 +131,43 @@ pub fn main() { host_triple.clone() }; - let cg_clif_dylib = build_backend::build_backend(channel, &host_triple, use_unstable_features); + // FIXME allow changing the location of these dirs using cli arguments + let current_dir = std::env::current_dir().unwrap(); + out_dir = current_dir.join(out_dir); + let dirs = path::Dirs { + source_dir: current_dir.clone(), + download_dir: out_dir.join("download"), + build_dir: out_dir.join("build"), + dist_dir: out_dir.join("dist"), + }; + + path::RelPath::BUILD.ensure_exists(&dirs); + + { + // Make sure we always explicitly specify the target dir + let target = + path::RelPath::BUILD.join("target_dir_should_be_set_explicitly").to_path(&dirs); + env::set_var("CARGO_TARGET_DIR", &target); + let _ = std::fs::remove_file(&target); + std::fs::File::create(target).unwrap(); + } + + if command == Command::Prepare { + prepare::prepare(&dirs); + process::exit(0); + } + + let cg_clif_dylib = + build_backend::build_backend(&dirs, channel, &host_triple, use_unstable_features); match command { + Command::Prepare => { + // Handled above + } Command::Test => { tests::run_tests( + &dirs, channel, sysroot_kind, - &target_dir, &cg_clif_dylib, &host_triple, &target_triple, @@ -137,7 +176,7 @@ pub fn main() { abi_cafe::run( channel, sysroot_kind, - &target_dir, + &dirs, &cg_clif_dylib, &host_triple, &target_triple, @@ -145,9 +184,9 @@ pub fn main() { } Command::Build => { build_sysroot::build_sysroot( + &dirs, channel, sysroot_kind, - &target_dir, &cg_clif_dylib, &host_triple, &target_triple, diff --git a/compiler/rustc_codegen_cranelift/build_system/path.rs b/compiler/rustc_codegen_cranelift/build_system/path.rs new file mode 100644 index 00000000000..e93981f1d64 --- /dev/null +++ b/compiler/rustc_codegen_cranelift/build_system/path.rs @@ -0,0 +1,70 @@ +use std::fs; +use std::path::PathBuf; + +#[derive(Debug, Clone)] +pub(crate) struct Dirs { + pub(crate) source_dir: PathBuf, + pub(crate) download_dir: PathBuf, + pub(crate) build_dir: PathBuf, + pub(crate) dist_dir: PathBuf, +} + +#[doc(hidden)] +#[derive(Debug, Copy, Clone)] +pub(crate) enum PathBase { + Source, + Download, + Build, + Dist, +} + +impl PathBase { + fn to_path(self, dirs: &Dirs) -> PathBuf { + match self { + PathBase::Source => dirs.source_dir.clone(), + PathBase::Download => dirs.download_dir.clone(), + PathBase::Build => dirs.build_dir.clone(), + PathBase::Dist => dirs.dist_dir.clone(), + } + } +} + +#[derive(Debug, Copy, Clone)] +pub(crate) enum RelPath { + Base(PathBase), + Join(&'static RelPath, &'static str), +} + +impl RelPath { + pub(crate) const SOURCE: RelPath = RelPath::Base(PathBase::Source); + pub(crate) const DOWNLOAD: RelPath = RelPath::Base(PathBase::Download); + pub(crate) const BUILD: RelPath = RelPath::Base(PathBase::Build); + pub(crate) const DIST: RelPath = RelPath::Base(PathBase::Dist); + + pub(crate) const SCRIPTS: RelPath = RelPath::SOURCE.join("scripts"); + pub(crate) const BUILD_SYSROOT: RelPath = RelPath::SOURCE.join("build_sysroot"); + pub(crate) const PATCHES: RelPath = RelPath::SOURCE.join("patches"); + + pub(crate) const fn join(&'static self, suffix: &'static str) -> RelPath { + RelPath::Join(self, suffix) + } + + pub(crate) fn to_path(&self, dirs: &Dirs) -> PathBuf { + match self { + RelPath::Base(base) => base.to_path(dirs), + RelPath::Join(base, suffix) => base.to_path(dirs).join(suffix), + } + } + + pub(crate) fn ensure_exists(&self, dirs: &Dirs) { + fs::create_dir_all(self.to_path(dirs)).unwrap(); + } + + pub(crate) fn ensure_fresh(&self, dirs: &Dirs) { + let path = self.to_path(dirs); + if path.exists() { + fs::remove_dir_all(&path).unwrap(); + } + fs::create_dir_all(path).unwrap(); + } +} diff --git a/compiler/rustc_codegen_cranelift/build_system/prepare.rs b/compiler/rustc_codegen_cranelift/build_system/prepare.rs index 3111f62f6c2..8ac67e8f942 100644 --- a/compiler/rustc_codegen_cranelift/build_system/prepare.rs +++ b/compiler/rustc_codegen_cranelift/build_system/prepare.rs @@ -1,92 +1,75 @@ -use std::env; use std::ffi::OsStr; use std::fs; use std::path::{Path, PathBuf}; use std::process::Command; +use super::build_sysroot::{SYSROOT_RUSTC_VERSION, SYSROOT_SRC}; +use super::path::{Dirs, RelPath}; use super::rustc_info::{get_file_name, get_rustc_path, get_rustc_version}; -use super::utils::{cargo_command, copy_dir_recursively, spawn_and_wait}; - -pub(crate) const ABI_CAFE: GitRepo = - GitRepo::github("Gankra", "abi-cafe", "4c6dc8c9c687e2b3a760ff2176ce236872b37212", "abi-cafe"); - -pub(crate) const RAND: GitRepo = - GitRepo::github("rust-random", "rand", "0f933f9c7176e53b2a3c7952ded484e1783f0bf1", "rand"); - -pub(crate) const REGEX: GitRepo = - GitRepo::github("rust-lang", "regex", "341f207c1071f7290e3f228c710817c280c8dca1", "regex"); - -pub(crate) const PORTABLE_SIMD: GitRepo = GitRepo::github( - "rust-lang", - "portable-simd", - "d5cd4a8112d958bd3a252327e0d069a6363249bd", - "portable-simd", -); - -pub(crate) const SIMPLE_RAYTRACER: GitRepo = GitRepo::github( - "ebobby", - "simple-raytracer", - "804a7a21b9e673a482797aa289a18ed480e4d813", - "<none>", -); - -pub(crate) fn prepare() { - if Path::new("download").exists() { - std::fs::remove_dir_all(Path::new("download")).unwrap(); +use super::utils::{copy_dir_recursively, spawn_and_wait, Compiler}; + +pub(crate) fn prepare(dirs: &Dirs) { + if RelPath::DOWNLOAD.to_path(dirs).exists() { + std::fs::remove_dir_all(RelPath::DOWNLOAD.to_path(dirs)).unwrap(); } - std::fs::create_dir_all(Path::new("download")).unwrap(); + std::fs::create_dir_all(RelPath::DOWNLOAD.to_path(dirs)).unwrap(); - prepare_sysroot(); + prepare_sysroot(dirs); // FIXME maybe install this only locally? eprintln!("[INSTALL] hyperfine"); - Command::new("cargo").arg("install").arg("hyperfine").spawn().unwrap().wait().unwrap(); + Command::new("cargo") + .arg("install") + .arg("hyperfine") + .env_remove("CARGO_TARGET_DIR") + .spawn() + .unwrap() + .wait() + .unwrap(); - ABI_CAFE.fetch(); - RAND.fetch(); - REGEX.fetch(); - PORTABLE_SIMD.fetch(); - SIMPLE_RAYTRACER.fetch(); + super::abi_cafe::ABI_CAFE_REPO.fetch(dirs); + super::tests::RAND_REPO.fetch(dirs); + super::tests::REGEX_REPO.fetch(dirs); + super::tests::PORTABLE_SIMD_REPO.fetch(dirs); + super::tests::SIMPLE_RAYTRACER_REPO.fetch(dirs); eprintln!("[LLVM BUILD] simple-raytracer"); - let build_cmd = cargo_command("cargo", "build", None, &SIMPLE_RAYTRACER.source_dir()); + let host_compiler = Compiler::host(); + let build_cmd = super::tests::SIMPLE_RAYTRACER.build(&host_compiler, dirs); spawn_and_wait(build_cmd); fs::copy( - SIMPLE_RAYTRACER - .source_dir() - .join("target") + super::tests::SIMPLE_RAYTRACER + .target_dir(dirs) + .join(&host_compiler.triple) .join("debug") .join(get_file_name("main", "bin")), - SIMPLE_RAYTRACER.source_dir().join(get_file_name("raytracer_cg_llvm", "bin")), + RelPath::BUILD.to_path(dirs).join(get_file_name("raytracer_cg_llvm", "bin")), ) .unwrap(); } -fn prepare_sysroot() { +fn prepare_sysroot(dirs: &Dirs) { let rustc_path = get_rustc_path(); let sysroot_src_orig = rustc_path.parent().unwrap().join("../lib/rustlib/src/rust"); - let sysroot_src = env::current_dir().unwrap().join("build_sysroot").join("sysroot_src"); + let sysroot_src = SYSROOT_SRC; assert!(sysroot_src_orig.exists()); - if sysroot_src.exists() { - fs::remove_dir_all(&sysroot_src).unwrap(); - } - fs::create_dir_all(sysroot_src.join("library")).unwrap(); + sysroot_src.ensure_fresh(dirs); + fs::create_dir_all(sysroot_src.to_path(dirs).join("library")).unwrap(); eprintln!("[COPY] sysroot src"); - copy_dir_recursively(&sysroot_src_orig.join("library"), &sysroot_src.join("library")); + copy_dir_recursively( + &sysroot_src_orig.join("library"), + &sysroot_src.to_path(dirs).join("library"), + ); let rustc_version = get_rustc_version(); - fs::write(Path::new("build_sysroot").join("rustc_version"), &rustc_version).unwrap(); + fs::write(SYSROOT_RUSTC_VERSION.to_path(dirs), &rustc_version).unwrap(); eprintln!("[GIT] init"); - let mut git_init_cmd = Command::new("git"); - git_init_cmd.arg("init").arg("-q").current_dir(&sysroot_src); - spawn_and_wait(git_init_cmd); - - init_git_repo(&sysroot_src); + init_git_repo(&sysroot_src.to_path(dirs)); - apply_patches("sysroot", &sysroot_src); + apply_patches(dirs, "sysroot", &sysroot_src.to_path(dirs)); } pub(crate) struct GitRepo { @@ -100,7 +83,7 @@ enum GitRepoUrl { } impl GitRepo { - const fn github( + pub(crate) const fn github( user: &'static str, repo: &'static str, rev: &'static str, @@ -109,21 +92,25 @@ impl GitRepo { GitRepo { url: GitRepoUrl::Github { user, repo }, rev, patch_name } } - pub(crate) fn source_dir(&self) -> PathBuf { + pub(crate) const fn source_dir(&self) -> RelPath { match self.url { - GitRepoUrl::Github { user: _, repo } => { - std::env::current_dir().unwrap().join("download").join(repo) - } + GitRepoUrl::Github { user: _, repo } => RelPath::DOWNLOAD.join(repo), } } - fn fetch(&self) { + fn fetch(&self, dirs: &Dirs) { match self.url { GitRepoUrl::Github { user, repo } => { - clone_repo_shallow_github(&self.source_dir(), user, repo, self.rev); + clone_repo_shallow_github( + dirs, + &self.source_dir().to_path(dirs), + user, + repo, + self.rev, + ); } } - apply_patches(self.patch_name, &self.source_dir()); + apply_patches(dirs, self.patch_name, &self.source_dir().to_path(dirs)); } } @@ -142,18 +129,16 @@ fn clone_repo(download_dir: &Path, repo: &str, rev: &str) { spawn_and_wait(checkout_cmd); } -fn clone_repo_shallow_github(download_dir: &Path, user: &str, repo: &str, rev: &str) { +fn clone_repo_shallow_github(dirs: &Dirs, download_dir: &Path, user: &str, repo: &str, rev: &str) { if cfg!(windows) { // Older windows doesn't have tar or curl by default. Fall back to using git. clone_repo(download_dir, &format!("https://github.com/{}/{}.git", user, repo), rev); return; } - let downloads_dir = std::env::current_dir().unwrap().join("download"); - let archive_url = format!("https://github.com/{}/{}/archive/{}.tar.gz", user, repo, rev); - let archive_file = downloads_dir.join(format!("{}.tar.gz", rev)); - let archive_dir = downloads_dir.join(format!("{}-{}", repo, rev)); + let archive_file = RelPath::DOWNLOAD.to_path(dirs).join(format!("{}.tar.gz", rev)); + let archive_dir = RelPath::DOWNLOAD.to_path(dirs).join(format!("{}-{}", repo, rev)); eprintln!("[DOWNLOAD] {}/{} from {}", user, repo, archive_url); @@ -169,7 +154,7 @@ fn clone_repo_shallow_github(download_dir: &Path, user: &str, repo: &str, rev: & // Unpack tar archive let mut unpack_cmd = Command::new("tar"); - unpack_cmd.arg("xf").arg(&archive_file).current_dir(downloads_dir); + unpack_cmd.arg("xf").arg(&archive_file).current_dir(RelPath::DOWNLOAD.to_path(dirs)); spawn_and_wait(unpack_cmd); // Rename unpacked dir to the expected name @@ -191,12 +176,21 @@ fn init_git_repo(repo_dir: &Path) { spawn_and_wait(git_add_cmd); let mut git_commit_cmd = Command::new("git"); - git_commit_cmd.arg("commit").arg("-m").arg("Initial commit").arg("-q").current_dir(repo_dir); + git_commit_cmd + .arg("-c") + .arg("user.name=Dummy") + .arg("-c") + .arg("user.email=dummy@example.com") + .arg("commit") + .arg("-m") + .arg("Initial commit") + .arg("-q") + .current_dir(repo_dir); spawn_and_wait(git_commit_cmd); } -fn get_patches(source_dir: &Path, crate_name: &str) -> Vec<PathBuf> { - let mut patches: Vec<_> = fs::read_dir(source_dir.join("patches")) +fn get_patches(dirs: &Dirs, crate_name: &str) -> Vec<PathBuf> { + let mut patches: Vec<_> = fs::read_dir(RelPath::PATCHES.to_path(dirs)) .unwrap() .map(|entry| entry.unwrap().path()) .filter(|path| path.extension() == Some(OsStr::new("patch"))) @@ -215,19 +209,27 @@ fn get_patches(source_dir: &Path, crate_name: &str) -> Vec<PathBuf> { patches } -fn apply_patches(crate_name: &str, target_dir: &Path) { +fn apply_patches(dirs: &Dirs, crate_name: &str, target_dir: &Path) { if crate_name == "<none>" { return; } - for patch in get_patches(&std::env::current_dir().unwrap(), crate_name) { + for patch in get_patches(dirs, crate_name) { eprintln!( "[PATCH] {:?} <- {:?}", target_dir.file_name().unwrap(), patch.file_name().unwrap() ); let mut apply_patch_cmd = Command::new("git"); - apply_patch_cmd.arg("am").arg(patch).arg("-q").current_dir(target_dir); + apply_patch_cmd + .arg("-c") + .arg("user.name=Dummy") + .arg("-c") + .arg("user.email=dummy@example.com") + .arg("am") + .arg(patch) + .arg("-q") + .current_dir(target_dir); spawn_and_wait(apply_patch_cmd); } } diff --git a/compiler/rustc_codegen_cranelift/build_system/rustc_info.rs b/compiler/rustc_codegen_cranelift/build_system/rustc_info.rs index 3c08b6fa389..8e5ab688e13 100644 --- a/compiler/rustc_codegen_cranelift/build_system/rustc_info.rs +++ b/compiler/rustc_codegen_cranelift/build_system/rustc_info.rs @@ -23,6 +23,16 @@ pub(crate) fn get_host_triple() -> String { .to_owned() } +pub(crate) fn get_cargo_path() -> PathBuf { + let cargo_path = Command::new("rustup") + .stderr(Stdio::inherit()) + .args(&["which", "cargo"]) + .output() + .unwrap() + .stdout; + Path::new(String::from_utf8(cargo_path).unwrap().trim()).to_owned() +} + pub(crate) fn get_rustc_path() -> PathBuf { let rustc_path = Command::new("rustup") .stderr(Stdio::inherit()) @@ -33,6 +43,16 @@ pub(crate) fn get_rustc_path() -> PathBuf { Path::new(String::from_utf8(rustc_path).unwrap().trim()).to_owned() } +pub(crate) fn get_rustdoc_path() -> PathBuf { + let rustc_path = Command::new("rustup") + .stderr(Stdio::inherit()) + .args(&["which", "rustdoc"]) + .output() + .unwrap() + .stdout; + Path::new(String::from_utf8(rustc_path).unwrap().trim()).to_owned() +} + pub(crate) fn get_default_sysroot() -> PathBuf { let default_sysroot = Command::new("rustc") .stderr(Stdio::inherit()) diff --git a/compiler/rustc_codegen_cranelift/build_system/tests.rs b/compiler/rustc_codegen_cranelift/build_system/tests.rs index a414b60f4e0..1c372736ed6 100644 --- a/compiler/rustc_codegen_cranelift/build_system/tests.rs +++ b/compiler/rustc_codegen_cranelift/build_system/tests.rs @@ -1,15 +1,20 @@ use super::build_sysroot; use super::config; -use super::prepare; -use super::rustc_info::get_wrapper_file_name; -use super::utils::{cargo_command, hyperfine_command, spawn_and_wait, spawn_and_wait_with_input}; -use build_system::SysrootKind; +use super::path::{Dirs, RelPath}; +use super::prepare::GitRepo; +use super::rustc_info::{get_cargo_path, get_wrapper_file_name}; +use super::utils::{ + hyperfine_command, spawn_and_wait, spawn_and_wait_with_input, CargoProject, Compiler, +}; +use super::SysrootKind; use std::env; use std::ffi::OsStr; use std::fs; -use std::path::{Path, PathBuf}; +use std::path::Path; use std::process::Command; +static BUILD_EXAMPLE_OUT_DIR: RelPath = RelPath::BUILD.join("example"); + struct TestCase { config: &'static str, func: &'static dyn Fn(&TestRunner), @@ -30,7 +35,7 @@ const NO_SYSROOT_SUITE: &[TestCase] = &[ "--crate-type", "lib,dylib", "--target", - &runner.target_triple, + &runner.target_compiler.triple, ]); }), TestCase::new("build.example", &|runner| { @@ -39,7 +44,7 @@ const NO_SYSROOT_SUITE: &[TestCase] = &[ "--crate-type", "lib", "--target", - &runner.target_triple, + &runner.target_compiler.triple, ]); }), TestCase::new("jit.mini_core_hello_world", &|runner| { @@ -51,7 +56,7 @@ const NO_SYSROOT_SUITE: &[TestCase] = &[ "--cfg", "jit", "--target", - &runner.host_triple, + &runner.target_compiler.triple, ]); jit_cmd.env("CG_CLIF_JIT_ARGS", "abc bcd"); spawn_and_wait(jit_cmd); @@ -65,7 +70,7 @@ const NO_SYSROOT_SUITE: &[TestCase] = &[ "--cfg", "jit", "--target", - &runner.host_triple, + &runner.target_compiler.triple, ]); jit_cmd.env("CG_CLIF_JIT_ARGS", "abc bcd"); spawn_and_wait(jit_cmd); @@ -79,7 +84,7 @@ const NO_SYSROOT_SUITE: &[TestCase] = &[ "bin", "-g", "--target", - &runner.target_triple, + &runner.target_compiler.triple, ]); runner.run_out_command("mini_core_hello_world", ["abc", "bcd"]); }), @@ -94,7 +99,7 @@ const BASE_SYSROOT_SUITE: &[TestCase] = &[ "--crate-type", "bin", "--target", - &runner.target_triple, + &runner.target_compiler.triple, ]); runner.run_out_command("arbitrary_self_types_pointers_and_wrappers", []); }), @@ -106,7 +111,7 @@ const BASE_SYSROOT_SUITE: &[TestCase] = &[ "--crate-type", "bin", "--target", - &runner.target_triple, + &runner.target_compiler.triple, ]); runner.run_out_command("issue_91827_extern_types", []); }), @@ -116,7 +121,7 @@ const BASE_SYSROOT_SUITE: &[TestCase] = &[ "--crate-type", "lib", "--target", - &runner.target_triple, + &runner.target_compiler.triple, ]); }), TestCase::new("aot.alloc_example", &|runner| { @@ -125,7 +130,7 @@ const BASE_SYSROOT_SUITE: &[TestCase] = &[ "--crate-type", "bin", "--target", - &runner.target_triple, + &runner.target_compiler.triple, ]); runner.run_out_command("alloc_example", []); }), @@ -136,7 +141,7 @@ const BASE_SYSROOT_SUITE: &[TestCase] = &[ "-Cprefer-dynamic", "example/std_example.rs", "--target", - &runner.host_triple, + &runner.target_compiler.triple, ]); eprintln!("[JIT-lazy] std_example"); @@ -146,7 +151,7 @@ const BASE_SYSROOT_SUITE: &[TestCase] = &[ "-Cprefer-dynamic", "example/std_example.rs", "--target", - &runner.host_triple, + &runner.target_compiler.triple, ]); }), TestCase::new("aot.std_example", &|runner| { @@ -155,7 +160,7 @@ const BASE_SYSROOT_SUITE: &[TestCase] = &[ "--crate-type", "bin", "--target", - &runner.target_triple, + &runner.target_compiler.triple, ]); runner.run_out_command("std_example", ["arg"]); }), @@ -167,7 +172,7 @@ const BASE_SYSROOT_SUITE: &[TestCase] = &[ "--crate-type", "bin", "--target", - &runner.target_triple, + &runner.target_compiler.triple, ]); runner.run_out_command("dst_field_align", []); }), @@ -178,7 +183,7 @@ const BASE_SYSROOT_SUITE: &[TestCase] = &[ "bin", "-Cpanic=abort", "--target", - &runner.target_triple, + &runner.target_compiler.triple, ]); runner.run_out_command("subslice-patterns-const-eval", []); }), @@ -189,7 +194,7 @@ const BASE_SYSROOT_SUITE: &[TestCase] = &[ "bin", "-Cpanic=abort", "--target", - &runner.target_triple, + &runner.target_compiler.triple, ]); runner.run_out_command("track-caller-attribute", []); }), @@ -200,7 +205,7 @@ const BASE_SYSROOT_SUITE: &[TestCase] = &[ "bin", "-Cpanic=abort", "--target", - &runner.target_triple, + &runner.target_compiler.triple, ]); runner.run_out_command("float-minmax-pass", []); }), @@ -210,205 +215,252 @@ const BASE_SYSROOT_SUITE: &[TestCase] = &[ "--crate-type", "bin", "--target", - &runner.target_triple, + &runner.target_compiler.triple, ]); runner.run_out_command("mod_bench", []); }), + TestCase::new("aot.issue-72793", &|runner| { + runner.run_rustc([ + "example/issue-72793.rs", + "--crate-type", + "bin", + "--target", + &runner.target_compiler.triple, + ]); + runner.run_out_command("issue-72793", []); + }), ]; +pub(crate) static RAND_REPO: GitRepo = + GitRepo::github("rust-random", "rand", "0f933f9c7176e53b2a3c7952ded484e1783f0bf1", "rand"); + +static RAND: CargoProject = CargoProject::new(&RAND_REPO.source_dir(), "rand"); + +pub(crate) static REGEX_REPO: GitRepo = + GitRepo::github("rust-lang", "regex", "341f207c1071f7290e3f228c710817c280c8dca1", "regex"); + +static REGEX: CargoProject = CargoProject::new(®EX_REPO.source_dir(), "regex"); + +pub(crate) static PORTABLE_SIMD_REPO: GitRepo = GitRepo::github( + "rust-lang", + "portable-simd", + "d5cd4a8112d958bd3a252327e0d069a6363249bd", + "portable-simd", +); + +static PORTABLE_SIMD: CargoProject = + CargoProject::new(&PORTABLE_SIMD_REPO.source_dir(), "portable_simd"); + +pub(crate) static SIMPLE_RAYTRACER_REPO: GitRepo = GitRepo::github( + "ebobby", + "simple-raytracer", + "804a7a21b9e673a482797aa289a18ed480e4d813", + "<none>", +); + +pub(crate) static SIMPLE_RAYTRACER: CargoProject = + CargoProject::new(&SIMPLE_RAYTRACER_REPO.source_dir(), "simple_raytracer"); + +static LIBCORE_TESTS: CargoProject = + CargoProject::new(&RelPath::BUILD_SYSROOT.join("sysroot_src/library/core/tests"), "core_tests"); + const EXTENDED_SYSROOT_SUITE: &[TestCase] = &[ TestCase::new("test.rust-random/rand", &|runner| { - runner.in_dir(prepare::RAND.source_dir(), |runner| { - runner.run_cargo("clean", []); - - if runner.host_triple == runner.target_triple { - eprintln!("[TEST] rust-random/rand"); - runner.run_cargo("test", ["--workspace"]); - } else { - eprintln!("[AOT] rust-random/rand"); - runner.run_cargo("build", ["--workspace", "--tests"]); - } - }); + spawn_and_wait(RAND.clean(&runner.target_compiler.cargo, &runner.dirs)); + + if runner.is_native { + eprintln!("[TEST] rust-random/rand"); + let mut test_cmd = RAND.test(&runner.target_compiler, &runner.dirs); + test_cmd.arg("--workspace"); + spawn_and_wait(test_cmd); + } else { + eprintln!("[AOT] rust-random/rand"); + let mut build_cmd = RAND.build(&runner.target_compiler, &runner.dirs); + build_cmd.arg("--workspace").arg("--tests"); + spawn_and_wait(build_cmd); + } }), TestCase::new("bench.simple-raytracer", &|runner| { - runner.in_dir(prepare::SIMPLE_RAYTRACER.source_dir(), |runner| { - let run_runs = env::var("RUN_RUNS").unwrap_or("10".to_string()).parse().unwrap(); - - if runner.host_triple == runner.target_triple { - eprintln!("[BENCH COMPILE] ebobby/simple-raytracer"); - let prepare = runner.cargo_command("clean", []); - - let llvm_build_cmd = cargo_command("cargo", "build", None, Path::new(".")); - - let cargo_clif = runner - .root_dir - .clone() - .join("build") - .join(get_wrapper_file_name("cargo-clif", "bin")); - let clif_build_cmd = cargo_command(cargo_clif, "build", None, Path::new(".")); - - let bench_compile = - hyperfine_command(1, run_runs, Some(prepare), llvm_build_cmd, clif_build_cmd); - - spawn_and_wait(bench_compile); - - eprintln!("[BENCH RUN] ebobby/simple-raytracer"); - fs::copy(PathBuf::from("./target/debug/main"), PathBuf::from("raytracer_cg_clif")) - .unwrap(); - - let bench_run = hyperfine_command( - 0, - run_runs, - None, - Command::new("./raytracer_cg_llvm"), - Command::new("./raytracer_cg_clif"), - ); - spawn_and_wait(bench_run); - } else { - runner.run_cargo("clean", []); - eprintln!("[BENCH COMPILE] ebobby/simple-raytracer (skipped)"); - eprintln!("[COMPILE] ebobby/simple-raytracer"); - runner.run_cargo("build", []); - eprintln!("[BENCH RUN] ebobby/simple-raytracer (skipped)"); - } - }); + let run_runs = env::var("RUN_RUNS").unwrap_or("10".to_string()).parse().unwrap(); + + if runner.is_native { + eprintln!("[BENCH COMPILE] ebobby/simple-raytracer"); + let cargo_clif = RelPath::DIST + .to_path(&runner.dirs) + .join(get_wrapper_file_name("cargo-clif", "bin")); + let manifest_path = SIMPLE_RAYTRACER.manifest_path(&runner.dirs); + let target_dir = SIMPLE_RAYTRACER.target_dir(&runner.dirs); + + let clean_cmd = format!( + "cargo clean --manifest-path {manifest_path} --target-dir {target_dir}", + manifest_path = manifest_path.display(), + target_dir = target_dir.display(), + ); + let llvm_build_cmd = format!( + "cargo build --manifest-path {manifest_path} --target-dir {target_dir}", + manifest_path = manifest_path.display(), + target_dir = target_dir.display(), + ); + let clif_build_cmd = format!( + "{cargo_clif} build --manifest-path {manifest_path} --target-dir {target_dir}", + cargo_clif = cargo_clif.display(), + manifest_path = manifest_path.display(), + target_dir = target_dir.display(), + ); + + let bench_compile = + hyperfine_command(1, run_runs, Some(&clean_cmd), &llvm_build_cmd, &clif_build_cmd); + + spawn_and_wait(bench_compile); + + eprintln!("[BENCH RUN] ebobby/simple-raytracer"); + fs::copy( + target_dir.join("debug").join("main"), + RelPath::BUILD.to_path(&runner.dirs).join("raytracer_cg_clif"), + ) + .unwrap(); + + let mut bench_run = + hyperfine_command(0, run_runs, None, "./raytracer_cg_llvm", "./raytracer_cg_clif"); + bench_run.current_dir(RelPath::BUILD.to_path(&runner.dirs)); + spawn_and_wait(bench_run); + } else { + spawn_and_wait(SIMPLE_RAYTRACER.clean(&runner.target_compiler.cargo, &runner.dirs)); + eprintln!("[BENCH COMPILE] ebobby/simple-raytracer (skipped)"); + eprintln!("[COMPILE] ebobby/simple-raytracer"); + spawn_and_wait(SIMPLE_RAYTRACER.build(&runner.target_compiler, &runner.dirs)); + eprintln!("[BENCH RUN] ebobby/simple-raytracer (skipped)"); + } }), TestCase::new("test.libcore", &|runner| { - runner.in_dir( - std::env::current_dir() - .unwrap() - .join("build_sysroot") - .join("sysroot_src") - .join("library") - .join("core") - .join("tests"), - |runner| { - runner.run_cargo("clean", []); - - if runner.host_triple == runner.target_triple { - runner.run_cargo("test", []); - } else { - eprintln!("Cross-Compiling: Not running tests"); - runner.run_cargo("build", ["--tests"]); - } - }, - ); + spawn_and_wait(LIBCORE_TESTS.clean(&runner.host_compiler.cargo, &runner.dirs)); + + if runner.is_native { + spawn_and_wait(LIBCORE_TESTS.test(&runner.target_compiler, &runner.dirs)); + } else { + eprintln!("Cross-Compiling: Not running tests"); + let mut build_cmd = LIBCORE_TESTS.build(&runner.target_compiler, &runner.dirs); + build_cmd.arg("--tests"); + spawn_and_wait(build_cmd); + } }), TestCase::new("test.regex-shootout-regex-dna", &|runner| { - runner.in_dir(prepare::REGEX.source_dir(), |runner| { - runner.run_cargo("clean", []); - - // newer aho_corasick versions throw a deprecation warning - let lint_rust_flags = format!("{} --cap-lints warn", runner.rust_flags); - - let mut build_cmd = runner.cargo_command("build", ["--example", "shootout-regex-dna"]); - build_cmd.env("RUSTFLAGS", lint_rust_flags.clone()); - spawn_and_wait(build_cmd); - - if runner.host_triple == runner.target_triple { - let mut run_cmd = runner.cargo_command("run", ["--example", "shootout-regex-dna"]); - run_cmd.env("RUSTFLAGS", lint_rust_flags); - - let input = - fs::read_to_string(PathBuf::from("examples/regexdna-input.txt")).unwrap(); - let expected_path = PathBuf::from("examples/regexdna-output.txt"); - let expected = fs::read_to_string(&expected_path).unwrap(); - - let output = spawn_and_wait_with_input(run_cmd, input); - // Make sure `[codegen mono items] start` doesn't poison the diff - let output = output - .lines() - .filter(|line| !line.contains("codegen mono items")) - .chain(Some("")) // This just adds the trailing newline - .collect::<Vec<&str>>() - .join("\r\n"); - - let output_matches = expected.lines().eq(output.lines()); - if !output_matches { - let res_path = PathBuf::from("res.txt"); - fs::write(&res_path, &output).unwrap(); - - if cfg!(windows) { - println!("Output files don't match!"); - println!("Expected Output:\n{}", expected); - println!("Actual Output:\n{}", output); - } else { - let mut diff = Command::new("diff"); - diff.arg("-u"); - diff.arg(res_path); - diff.arg(expected_path); - spawn_and_wait(diff); - } - - std::process::exit(1); + spawn_and_wait(REGEX.clean(&runner.target_compiler.cargo, &runner.dirs)); + + // newer aho_corasick versions throw a deprecation warning + let lint_rust_flags = format!("{} --cap-lints warn", runner.target_compiler.rustflags); + + let mut build_cmd = REGEX.build(&runner.target_compiler, &runner.dirs); + build_cmd.arg("--example").arg("shootout-regex-dna"); + build_cmd.env("RUSTFLAGS", lint_rust_flags.clone()); + spawn_and_wait(build_cmd); + + if runner.is_native { + let mut run_cmd = REGEX.run(&runner.target_compiler, &runner.dirs); + run_cmd.arg("--example").arg("shootout-regex-dna"); + run_cmd.env("RUSTFLAGS", lint_rust_flags); + + let input = fs::read_to_string( + REGEX.source_dir(&runner.dirs).join("examples").join("regexdna-input.txt"), + ) + .unwrap(); + let expected_path = + REGEX.source_dir(&runner.dirs).join("examples").join("regexdna-output.txt"); + let expected = fs::read_to_string(&expected_path).unwrap(); + + let output = spawn_and_wait_with_input(run_cmd, input); + // Make sure `[codegen mono items] start` doesn't poison the diff + let output = output + .lines() + .filter(|line| !line.contains("codegen mono items")) + .chain(Some("")) // This just adds the trailing newline + .collect::<Vec<&str>>() + .join("\r\n"); + + let output_matches = expected.lines().eq(output.lines()); + if !output_matches { + let res_path = REGEX.source_dir(&runner.dirs).join("res.txt"); + fs::write(&res_path, &output).unwrap(); + + if cfg!(windows) { + println!("Output files don't match!"); + println!("Expected Output:\n{}", expected); + println!("Actual Output:\n{}", output); + } else { + let mut diff = Command::new("diff"); + diff.arg("-u"); + diff.arg(res_path); + diff.arg(expected_path); + spawn_and_wait(diff); } + + std::process::exit(1); } - }); + } }), TestCase::new("test.regex", &|runner| { - runner.in_dir(prepare::REGEX.source_dir(), |runner| { - runner.run_cargo("clean", []); - - // newer aho_corasick versions throw a deprecation warning - let lint_rust_flags = format!("{} --cap-lints warn", runner.rust_flags); - - if runner.host_triple == runner.target_triple { - let mut run_cmd = runner.cargo_command( - "test", - [ - "--tests", - "--", - "--exclude-should-panic", - "--test-threads", - "1", - "-Zunstable-options", - "-q", - ], - ); - run_cmd.env("RUSTFLAGS", lint_rust_flags); - spawn_and_wait(run_cmd); - } else { - eprintln!("Cross-Compiling: Not running tests"); - let mut build_cmd = - runner.cargo_command("build", ["--tests", "--target", &runner.target_triple]); - build_cmd.env("RUSTFLAGS", lint_rust_flags.clone()); - spawn_and_wait(build_cmd); - } - }); + spawn_and_wait(REGEX.clean(&runner.host_compiler.cargo, &runner.dirs)); + + // newer aho_corasick versions throw a deprecation warning + let lint_rust_flags = format!("{} --cap-lints warn", runner.target_compiler.rustflags); + + if runner.is_native { + let mut run_cmd = REGEX.test(&runner.target_compiler, &runner.dirs); + run_cmd.args([ + "--tests", + "--", + "--exclude-should-panic", + "--test-threads", + "1", + "-Zunstable-options", + "-q", + ]); + run_cmd.env("RUSTFLAGS", lint_rust_flags); + spawn_and_wait(run_cmd); + } else { + eprintln!("Cross-Compiling: Not running tests"); + let mut build_cmd = REGEX.build(&runner.target_compiler, &runner.dirs); + build_cmd.arg("--tests"); + build_cmd.env("RUSTFLAGS", lint_rust_flags.clone()); + spawn_and_wait(build_cmd); + } }), TestCase::new("test.portable-simd", &|runner| { - runner.in_dir(prepare::PORTABLE_SIMD.source_dir(), |runner| { - runner.run_cargo("clean", []); - runner.run_cargo("build", ["--all-targets", "--target", &runner.target_triple]); + spawn_and_wait(PORTABLE_SIMD.clean(&runner.host_compiler.cargo, &runner.dirs)); - if runner.host_triple == runner.target_triple { - runner.run_cargo("test", ["-q"]); - } - }); + let mut build_cmd = PORTABLE_SIMD.build(&runner.target_compiler, &runner.dirs); + build_cmd.arg("--all-targets"); + spawn_and_wait(build_cmd); + + if runner.is_native { + let mut test_cmd = PORTABLE_SIMD.test(&runner.target_compiler, &runner.dirs); + test_cmd.arg("-q"); + spawn_and_wait(test_cmd); + } }), ]; pub(crate) fn run_tests( + dirs: &Dirs, channel: &str, sysroot_kind: SysrootKind, - target_dir: &Path, cg_clif_dylib: &Path, host_triple: &str, target_triple: &str, ) { - let runner = TestRunner::new(host_triple.to_string(), target_triple.to_string()); + let runner = TestRunner::new(dirs.clone(), host_triple.to_string(), target_triple.to_string()); if config::get_bool("testsuite.no_sysroot") { build_sysroot::build_sysroot( + dirs, channel, SysrootKind::None, - &target_dir, cg_clif_dylib, &host_triple, &target_triple, ); - let _ = fs::remove_dir_all(Path::new("target").join("out")); + BUILD_EXAMPLE_OUT_DIR.ensure_fresh(dirs); runner.run_testsuite(NO_SYSROOT_SUITE); } else { eprintln!("[SKIP] no_sysroot tests"); @@ -419,9 +471,9 @@ pub(crate) fn run_tests( if run_base_sysroot || run_extended_sysroot { build_sysroot::build_sysroot( + dirs, channel, sysroot_kind, - &target_dir, cg_clif_dylib, &host_triple, &target_triple, @@ -442,40 +494,50 @@ pub(crate) fn run_tests( } struct TestRunner { - root_dir: PathBuf, - out_dir: PathBuf, + is_native: bool, jit_supported: bool, - rust_flags: String, - run_wrapper: Vec<String>, - host_triple: String, - target_triple: String, + dirs: Dirs, + host_compiler: Compiler, + target_compiler: Compiler, } impl TestRunner { - pub fn new(host_triple: String, target_triple: String) -> Self { - let root_dir = env::current_dir().unwrap(); - - let mut out_dir = root_dir.clone(); - out_dir.push("target"); - out_dir.push("out"); - + pub fn new(dirs: Dirs, host_triple: String, target_triple: String) -> Self { let is_native = host_triple == target_triple; let jit_supported = target_triple.contains("x86_64") && is_native && !host_triple.contains("windows"); - let mut rust_flags = env::var("RUSTFLAGS").ok().unwrap_or("".to_string()); - let mut run_wrapper = Vec::new(); + let rustc_clif = + RelPath::DIST.to_path(&dirs).join(get_wrapper_file_name("rustc-clif", "bin")); + let rustdoc_clif = + RelPath::DIST.to_path(&dirs).join(get_wrapper_file_name("rustdoc-clif", "bin")); + + let mut rustflags = env::var("RUSTFLAGS").ok().unwrap_or("".to_string()); + let mut runner = vec![]; if !is_native { match target_triple.as_str() { "aarch64-unknown-linux-gnu" => { // We are cross-compiling for aarch64. Use the correct linker and run tests in qemu. - rust_flags = format!("-Clinker=aarch64-linux-gnu-gcc{}", rust_flags); - run_wrapper = vec!["qemu-aarch64", "-L", "/usr/aarch64-linux-gnu"]; + rustflags = format!("-Clinker=aarch64-linux-gnu-gcc{}", rustflags); + runner = vec![ + "qemu-aarch64".to_owned(), + "-L".to_owned(), + "/usr/aarch64-linux-gnu".to_owned(), + ]; + } + "s390x-unknown-linux-gnu" => { + // We are cross-compiling for s390x. Use the correct linker and run tests in qemu. + rustflags = format!("-Clinker=s390x-linux-gnu-gcc{}", rustflags); + runner = vec![ + "qemu-s390x".to_owned(), + "-L".to_owned(), + "/usr/s390x-linux-gnu".to_owned(), + ]; } "x86_64-pc-windows-gnu" => { // We are cross-compiling for Windows. Run tests in wine. - run_wrapper = vec!["wine"]; + runner = vec!["wine".to_owned()]; } _ => { println!("Unknown non-native platform"); @@ -484,19 +546,31 @@ impl TestRunner { } // FIXME fix `#[linkage = "extern_weak"]` without this - if host_triple.contains("darwin") { - rust_flags = format!("{} -Clink-arg=-undefined -Clink-arg=dynamic_lookup", rust_flags); + if target_triple.contains("darwin") { + rustflags = format!("{} -Clink-arg=-undefined -Clink-arg=dynamic_lookup", rustflags); } - Self { - root_dir, - out_dir, - jit_supported, - rust_flags, - run_wrapper: run_wrapper.iter().map(|s| s.to_string()).collect(), - host_triple, - target_triple, - } + let host_compiler = Compiler { + cargo: get_cargo_path(), + rustc: rustc_clif.clone(), + rustdoc: rustdoc_clif.clone(), + rustflags: String::new(), + rustdocflags: String::new(), + triple: host_triple, + runner: vec![], + }; + + let target_compiler = Compiler { + cargo: get_cargo_path(), + rustc: rustc_clif, + rustdoc: rustdoc_clif, + rustflags: rustflags.clone(), + rustdocflags: rustflags, + triple: target_triple, + runner, + }; + + Self { is_native, jit_supported, dirs, host_compiler, target_compiler } } pub fn run_testsuite(&self, tests: &[TestCase]) { @@ -516,29 +590,18 @@ impl TestRunner { } } - fn in_dir(&self, new: impl AsRef<Path>, callback: impl FnOnce(&TestRunner)) { - let current = env::current_dir().unwrap(); - - env::set_current_dir(new).unwrap(); - callback(self); - env::set_current_dir(current).unwrap(); - } - + #[must_use] fn rustc_command<I, S>(&self, args: I) -> Command where I: IntoIterator<Item = S>, S: AsRef<OsStr>, { - let mut rustc_clif = self.root_dir.clone(); - rustc_clif.push("build"); - rustc_clif.push(get_wrapper_file_name("rustc-clif", "bin")); - - let mut cmd = Command::new(rustc_clif); - cmd.args(self.rust_flags.split_whitespace()); + let mut cmd = Command::new(&self.target_compiler.rustc); + cmd.args(self.target_compiler.rustflags.split_whitespace()); cmd.arg("-L"); - cmd.arg(format!("crate={}", self.out_dir.display())); + cmd.arg(format!("crate={}", BUILD_EXAMPLE_OUT_DIR.to_path(&self.dirs).display())); cmd.arg("--out-dir"); - cmd.arg(format!("{}", self.out_dir.display())); + cmd.arg(format!("{}", BUILD_EXAMPLE_OUT_DIR.to_path(&self.dirs).display())); cmd.arg("-Cdebuginfo=2"); cmd.args(args); cmd @@ -559,15 +622,13 @@ impl TestRunner { let mut full_cmd = vec![]; // Prepend the RUN_WRAPPER's - if !self.run_wrapper.is_empty() { - full_cmd.extend(self.run_wrapper.iter().cloned()); + if !self.target_compiler.runner.is_empty() { + full_cmd.extend(self.target_compiler.runner.iter().cloned()); } - full_cmd.push({ - let mut out_path = self.out_dir.clone(); - out_path.push(name); - out_path.to_str().unwrap().to_string() - }); + full_cmd.push( + BUILD_EXAMPLE_OUT_DIR.to_path(&self.dirs).join(name).to_str().unwrap().to_string(), + ); for arg in args.into_iter() { full_cmd.push(arg.to_string()); @@ -581,30 +642,4 @@ impl TestRunner { spawn_and_wait(cmd); } - - fn cargo_command<'a, I>(&self, subcommand: &str, args: I) -> Command - where - I: IntoIterator<Item = &'a str>, - { - let mut cargo_clif = self.root_dir.clone(); - cargo_clif.push("build"); - cargo_clif.push(get_wrapper_file_name("cargo-clif", "bin")); - - let mut cmd = cargo_command( - cargo_clif, - subcommand, - if subcommand == "clean" { None } else { Some(&self.target_triple) }, - Path::new("."), - ); - cmd.args(args); - cmd.env("RUSTFLAGS", &self.rust_flags); - cmd - } - - fn run_cargo<'a, I>(&self, subcommand: &str, args: I) - where - I: IntoIterator<Item = &'a str>, - { - spawn_and_wait(self.cargo_command(subcommand, args)); - } } diff --git a/compiler/rustc_codegen_cranelift/build_system/utils.rs b/compiler/rustc_codegen_cranelift/build_system/utils.rs index c627af4e62f..2be70e8e421 100644 --- a/compiler/rustc_codegen_cranelift/build_system/utils.rs +++ b/compiler/rustc_codegen_cranelift/build_system/utils.rs @@ -1,35 +1,138 @@ use std::env; use std::fs; use std::io::Write; -use std::path::Path; +use std::path::{Path, PathBuf}; use std::process::{self, Command, Stdio}; -pub(crate) fn cargo_command( - cargo: impl AsRef<Path>, - subcommand: &str, - triple: Option<&str>, - source_dir: &Path, -) -> Command { - let mut cmd = Command::new(cargo.as_ref()); - cmd.arg(subcommand) - .arg("--manifest-path") - .arg(source_dir.join("Cargo.toml")) - .arg("--target-dir") - .arg(source_dir.join("target")); +use super::path::{Dirs, RelPath}; +use super::rustc_info::{get_cargo_path, get_host_triple, get_rustc_path, get_rustdoc_path}; + +pub(crate) struct Compiler { + pub(crate) cargo: PathBuf, + pub(crate) rustc: PathBuf, + pub(crate) rustdoc: PathBuf, + pub(crate) rustflags: String, + pub(crate) rustdocflags: String, + pub(crate) triple: String, + pub(crate) runner: Vec<String>, +} + +impl Compiler { + pub(crate) fn host() -> Compiler { + Compiler { + cargo: get_cargo_path(), + rustc: get_rustc_path(), + rustdoc: get_rustdoc_path(), + rustflags: String::new(), + rustdocflags: String::new(), + triple: get_host_triple(), + runner: vec![], + } + } + + pub(crate) fn with_triple(triple: String) -> Compiler { + Compiler { + cargo: get_cargo_path(), + rustc: get_rustc_path(), + rustdoc: get_rustdoc_path(), + rustflags: String::new(), + rustdocflags: String::new(), + triple, + runner: vec![], + } + } +} + +pub(crate) struct CargoProject { + source: &'static RelPath, + target: &'static str, +} + +impl CargoProject { + pub(crate) const fn new(path: &'static RelPath, target: &'static str) -> CargoProject { + CargoProject { source: path, target } + } + + pub(crate) fn source_dir(&self, dirs: &Dirs) -> PathBuf { + self.source.to_path(dirs) + } + + pub(crate) fn manifest_path(&self, dirs: &Dirs) -> PathBuf { + self.source_dir(dirs).join("Cargo.toml") + } + + pub(crate) fn target_dir(&self, dirs: &Dirs) -> PathBuf { + RelPath::BUILD.join(self.target).to_path(dirs) + } - if let Some(triple) = triple { - cmd.arg("--target").arg(triple); + fn base_cmd(&self, command: &str, cargo: &Path, dirs: &Dirs) -> Command { + let mut cmd = Command::new(cargo); + + cmd.arg(command) + .arg("--manifest-path") + .arg(self.manifest_path(dirs)) + .arg("--target-dir") + .arg(self.target_dir(dirs)); + + cmd + } + + fn build_cmd(&self, command: &str, compiler: &Compiler, dirs: &Dirs) -> Command { + let mut cmd = self.base_cmd(command, &compiler.cargo, dirs); + + cmd.arg("--target").arg(&compiler.triple); + + cmd.env("RUSTC", &compiler.rustc); + cmd.env("RUSTDOC", &compiler.rustdoc); + cmd.env("RUSTFLAGS", &compiler.rustflags); + cmd.env("RUSTDOCFLAGS", &compiler.rustdocflags); + if !compiler.runner.is_empty() { + cmd.env( + format!("CARGO_TARGET_{}_RUNNER", compiler.triple.to_uppercase().replace('-', "_")), + compiler.runner.join(" "), + ); + } + + cmd } - cmd + #[must_use] + pub(crate) fn fetch(&self, cargo: impl AsRef<Path>, dirs: &Dirs) -> Command { + let mut cmd = Command::new(cargo.as_ref()); + + cmd.arg("fetch").arg("--manifest-path").arg(self.manifest_path(dirs)); + + cmd + } + + #[must_use] + pub(crate) fn clean(&self, cargo: &Path, dirs: &Dirs) -> Command { + self.base_cmd("clean", cargo, dirs) + } + + #[must_use] + pub(crate) fn build(&self, compiler: &Compiler, dirs: &Dirs) -> Command { + self.build_cmd("build", compiler, dirs) + } + + #[must_use] + pub(crate) fn test(&self, compiler: &Compiler, dirs: &Dirs) -> Command { + self.build_cmd("test", compiler, dirs) + } + + #[must_use] + pub(crate) fn run(&self, compiler: &Compiler, dirs: &Dirs) -> Command { + self.build_cmd("run", compiler, dirs) + } } +#[must_use] pub(crate) fn hyperfine_command( warmup: u64, runs: u64, - prepare: Option<Command>, - a: Command, - b: Command, + prepare: Option<&str>, + a: &str, + b: &str, ) -> Command { let mut bench = Command::new("hyperfine"); @@ -42,10 +145,10 @@ pub(crate) fn hyperfine_command( } if let Some(prepare) = prepare { - bench.arg("--prepare").arg(format!("{:?}", prepare)); + bench.arg("--prepare").arg(prepare); } - bench.arg(format!("{:?}", a)).arg(format!("{:?}", b)); + bench.arg(a).arg(b); bench } diff --git a/compiler/rustc_codegen_cranelift/clean_all.sh b/compiler/rustc_codegen_cranelift/clean_all.sh index fedab2433aa..1760e5836ec 100755 --- a/compiler/rustc_codegen_cranelift/clean_all.sh +++ b/compiler/rustc_codegen_cranelift/clean_all.sh @@ -2,7 +2,7 @@ set -e rm -rf build_sysroot/{sysroot_src/,target/,compiler-builtins/,rustc_version} -rm -rf target/ build/ perf.data{,.old} y.bin +rm -rf target/ build/ dist/ perf.data{,.old} y.bin rm -rf download/ # Kept for now in case someone updates their checkout of cg_clif before running clean_all.sh diff --git a/compiler/rustc_codegen_cranelift/config.txt b/compiler/rustc_codegen_cranelift/config.txt index 0d539191b12..258b67e9314 100644 --- a/compiler/rustc_codegen_cranelift/config.txt +++ b/compiler/rustc_codegen_cranelift/config.txt @@ -40,6 +40,7 @@ aot.subslice-patterns-const-eval aot.track-caller-attribute aot.float-minmax-pass aot.mod_bench +aot.issue-72793 testsuite.extended_sysroot test.rust-random/rand diff --git a/compiler/rustc_codegen_cranelift/docs/usage.md b/compiler/rustc_codegen_cranelift/docs/usage.md index 33f146e7ba2..4c2b0fa1704 100644 --- a/compiler/rustc_codegen_cranelift/docs/usage.md +++ b/compiler/rustc_codegen_cranelift/docs/usage.md @@ -9,7 +9,7 @@ Assuming `$cg_clif_dir` is the directory you cloned this repo into and you follo In the directory with your project (where you can do the usual `cargo build`), run: ```bash -$ $cg_clif_dir/build/cargo-clif build +$ $cg_clif_dir/dist/cargo-clif build ``` This will build your project with rustc_codegen_cranelift instead of the usual LLVM backend. @@ -19,7 +19,7 @@ This will build your project with rustc_codegen_cranelift instead of the usual L > You should prefer using the Cargo method. ```bash -$ $cg_clif_dir/build/rustc-clif my_crate.rs +$ $cg_clif_dir/dist/rustc-clif my_crate.rs ``` ## Jit mode @@ -32,20 +32,20 @@ In jit mode cg_clif will immediately execute your code without creating an execu > The jit mode will probably need cargo integration to make this possible. ```bash -$ $cg_clif_dir/build/cargo-clif jit +$ $cg_clif_dir/dist/cargo-clif jit ``` or ```bash -$ $cg_clif_dir/build/rustc-clif -Zunstable-features -Cllvm-args=mode=jit -Cprefer-dynamic my_crate.rs +$ $cg_clif_dir/dist/rustc-clif -Zunstable-features -Cllvm-args=mode=jit -Cprefer-dynamic my_crate.rs ``` There is also an experimental lazy jit mode. In this mode functions are only compiled once they are first called. ```bash -$ $cg_clif_dir/build/cargo-clif lazy-jit +$ $cg_clif_dir/dist/cargo-clif lazy-jit ``` ## Shell @@ -54,7 +54,7 @@ These are a few functions that allow you to easily run rust code from the shell ```bash function jit_naked() { - echo "$@" | $cg_clif_dir/build/rustc-clif - -Zunstable-features -Cllvm-args=mode=jit -Cprefer-dynamic + echo "$@" | $cg_clif_dir/dist/rustc-clif - -Zunstable-features -Cllvm-args=mode=jit -Cprefer-dynamic } function jit() { diff --git a/compiler/rustc_codegen_cranelift/example/issue-72793.rs b/compiler/rustc_codegen_cranelift/example/issue-72793.rs new file mode 100644 index 00000000000..b1bb9b8e1e7 --- /dev/null +++ b/compiler/rustc_codegen_cranelift/example/issue-72793.rs @@ -0,0 +1,24 @@ +// Adapted from rustc ui test suite (ui/type-alias-impl-trait/issue-72793.rs) + +#![feature(type_alias_impl_trait)] + +trait T { type Item; } + +type Alias<'a> = impl T<Item = &'a ()>; + +struct S; +impl<'a> T for &'a S { + type Item = &'a (); +} + +fn filter_positive<'a>() -> Alias<'a> { + &S +} + +fn with_positive(fun: impl Fn(Alias<'_>)) { + fun(filter_positive()); +} + +fn main() { + with_positive(|_| ()); +} diff --git a/compiler/rustc_codegen_cranelift/example/mini_core.rs b/compiler/rustc_codegen_cranelift/example/mini_core.rs index 7f85b52f083..1f9db1eb2a9 100644 --- a/compiler/rustc_codegen_cranelift/example/mini_core.rs +++ b/compiler/rustc_codegen_cranelift/example/mini_core.rs @@ -19,6 +19,9 @@ pub trait Sized {} #[lang = "destruct"] pub trait Destruct {} +#[lang = "tuple_trait"] +pub trait Tuple {} + #[lang = "unsize"] pub trait Unsize<T: ?Sized> {} @@ -443,7 +446,7 @@ pub struct PhantomData<T: ?Sized>; #[lang = "fn_once"] #[rustc_paren_sugar] -pub trait FnOnce<Args> { +pub trait FnOnce<Args: Tuple> { #[lang = "fn_once_output"] type Output; @@ -452,7 +455,7 @@ pub trait FnOnce<Args> { #[lang = "fn_mut"] #[rustc_paren_sugar] -pub trait FnMut<Args>: FnOnce<Args> { +pub trait FnMut<Args: Tuple>: FnOnce<Args> { extern "rust-call" fn call_mut(&mut self, args: Args) -> Self::Output; } diff --git a/compiler/rustc_codegen_cranelift/example/mini_core_hello_world.rs b/compiler/rustc_codegen_cranelift/example/mini_core_hello_world.rs index 215d3556a17..c00f8a2e0cd 100644 --- a/compiler/rustc_codegen_cranelift/example/mini_core_hello_world.rs +++ b/compiler/rustc_codegen_cranelift/example/mini_core_hello_world.rs @@ -171,8 +171,6 @@ fn main() { assert_eq!(slice_ptr as usize % 4, 0); - //return; - unsafe { printf("Hello %s\n\0" as *const str as *const i8, "printf\0" as *const str as *const i8); diff --git a/compiler/rustc_codegen_cranelift/example/std_example.rs b/compiler/rustc_codegen_cranelift/example/std_example.rs index ad108c34992..8481d9c39a3 100644 --- a/compiler/rustc_codegen_cranelift/example/std_example.rs +++ b/compiler/rustc_codegen_cranelift/example/std_example.rs @@ -164,6 +164,8 @@ unsafe fn test_simd() { let cmp_eq = _mm_cmpeq_epi8(y, y); let cmp_lt = _mm_cmplt_epi8(y, y); + let (zero0, zero1) = std::mem::transmute::<_, (u64, u64)>(x); + assert_eq!((zero0, zero1), (0, 0)); assert_eq!(std::mem::transmute::<_, [u16; 8]>(or), [7, 7, 7, 7, 7, 7, 7, 7]); assert_eq!(std::mem::transmute::<_, [u16; 8]>(cmp_eq), [0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff]); assert_eq!(std::mem::transmute::<_, [u16; 8]>(cmp_lt), [0, 0, 0, 0, 0, 0, 0, 0]); diff --git a/compiler/rustc_codegen_cranelift/rust-toolchain b/compiler/rustc_codegen_cranelift/rust-toolchain index c0a2e7a7883..d8f28dbcc15 100644 --- a/compiler/rustc_codegen_cranelift/rust-toolchain +++ b/compiler/rustc_codegen_cranelift/rust-toolchain @@ -1,3 +1,3 @@ [toolchain] -channel = "nightly-2022-10-23" +channel = "nightly-2022-12-13" components = ["rust-src", "rustc-dev", "llvm-tools-preview"] diff --git a/compiler/rustc_codegen_cranelift/rustfmt.toml b/compiler/rustc_codegen_cranelift/rustfmt.toml index 2bd8f7d1bc1..ebeca8662a5 100644 --- a/compiler/rustc_codegen_cranelift/rustfmt.toml +++ b/compiler/rustc_codegen_cranelift/rustfmt.toml @@ -1,3 +1,5 @@ +ignore = ["y.rs"] + # Matches rustfmt.toml of rustc version = "Two" use_small_heuristics = "Max" diff --git a/compiler/rustc_codegen_cranelift/scripts/filter_profile.rs b/compiler/rustc_codegen_cranelift/scripts/filter_profile.rs index e6f60d1c0cb..f782671fe36 100755 --- a/compiler/rustc_codegen_cranelift/scripts/filter_profile.rs +++ b/compiler/rustc_codegen_cranelift/scripts/filter_profile.rs @@ -2,7 +2,7 @@ #![forbid(unsafe_code)]/* This line is ignored by bash # This block is ignored by rustc pushd $(dirname "$0")/../ -RUSTC="$(pwd)/build/rustc-clif" +RUSTC="$(pwd)/dist/rustc-clif" popd PROFILE=$1 OUTPUT=$2 exec $RUSTC -Zunstable-options -Cllvm-args=mode=jit -Cprefer-dynamic $0 #*/ diff --git a/compiler/rustc_codegen_cranelift/scripts/rustdoc-clif.rs b/compiler/rustc_codegen_cranelift/scripts/rustdoc-clif.rs new file mode 100644 index 00000000000..a19d72acfa8 --- /dev/null +++ b/compiler/rustc_codegen_cranelift/scripts/rustdoc-clif.rs @@ -0,0 +1,36 @@ +use std::env; +use std::ffi::OsString; +#[cfg(unix)] +use std::os::unix::process::CommandExt; +use std::path::PathBuf; +use std::process::Command; + +fn main() { + let sysroot = PathBuf::from(env::current_exe().unwrap().parent().unwrap()); + + let cg_clif_dylib_path = sysroot.join(if cfg!(windows) { "bin" } else { "lib" }).join( + env::consts::DLL_PREFIX.to_string() + "rustc_codegen_cranelift" + env::consts::DLL_SUFFIX, + ); + + let mut args = std::env::args_os().skip(1).collect::<Vec<_>>(); + args.push(OsString::from("-Cpanic=abort")); + args.push(OsString::from("-Zpanic-abort-tests")); + let mut codegen_backend_arg = OsString::from("-Zcodegen-backend="); + codegen_backend_arg.push(cg_clif_dylib_path); + args.push(codegen_backend_arg); + if !args.contains(&OsString::from("--sysroot")) { + args.push(OsString::from("--sysroot")); + args.push(OsString::from(sysroot.to_str().unwrap())); + } + + // Ensure that the right toolchain is used + env::set_var("RUSTUP_TOOLCHAIN", env!("RUSTUP_TOOLCHAIN")); + + #[cfg(unix)] + Command::new("rustdoc").args(args).exec(); + + #[cfg(not(unix))] + std::process::exit( + Command::new("rustdoc").args(args).spawn().unwrap().wait().unwrap().code().unwrap_or(1), + ); +} diff --git a/compiler/rustc_codegen_cranelift/scripts/setup_rust_fork.sh b/compiler/rustc_codegen_cranelift/scripts/setup_rust_fork.sh index d6a37789599..6c64b7de7da 100644 --- a/compiler/rustc_codegen_cranelift/scripts/setup_rust_fork.sh +++ b/compiler/rustc_codegen_cranelift/scripts/setup_rust_fork.sh @@ -27,24 +27,6 @@ index d95b5b7f17f..00b6f0e3635 100644 [dev-dependencies] rand = "0.7" rand_xorshift = "0.2" -diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs -index 8431aa7b818..a3ff7e68ce5 100644 ---- a/src/tools/compiletest/src/runtest.rs -+++ b/src/tools/compiletest/src/runtest.rs -@@ -3489,12 +3489,7 @@ fn normalize_output(&self, output: &str, custom_rules: &[(String, String)]) -> S - let compiler_src_dir = base_dir.join("compiler"); - normalize_path(&compiler_src_dir, "$(echo '$COMPILER_DIR')"); - -- if let Some(virtual_rust_source_base_dir) = -- option_env!("CFG_VIRTUAL_RUST_SOURCE_BASE_DIR").map(PathBuf::from) -- { -- normalize_path(&virtual_rust_source_base_dir.join("library"), "$(echo '$SRC_DIR')"); -- normalize_path(&virtual_rust_source_base_dir.join("compiler"), "$(echo '$COMPILER_DIR')"); -- } -+ normalize_path(&Path::new("$(cd ../build_sysroot/sysroot_src/library; pwd)"), "$(echo '$SRC_DIR')"); - - // Paths into the build directory - let test_build_dir = &self.config.build_base; EOF cat > config.toml <<EOF @@ -54,7 +36,7 @@ changelog-seen = 2 ninja = false [build] -rustc = "$(pwd)/../build/rustc-clif" +rustc = "$(pwd)/../dist/rustc-clif" cargo = "$(rustup which cargo)" full-bootstrap = true local-rebuild = true @@ -69,6 +51,8 @@ popd # FIXME remove once inline asm is fully supported export RUSTFLAGS="$RUSTFLAGS --cfg=rustix_use_libc" +export CFG_VIRTUAL_RUST_SOURCE_BASE_DIR="$(cd build_sysroot/sysroot_src; pwd)" + # Allow the testsuite to use llvm tools host_triple=$(rustc -vV | grep host | cut -d: -f2 | tr -d " ") export LLVM_BIN_DIR="$(rustc --print sysroot)/lib/rustlib/$host_triple/bin" diff --git a/compiler/rustc_codegen_cranelift/scripts/test_rustc_tests.sh b/compiler/rustc_codegen_cranelift/scripts/test_rustc_tests.sh index 9b5db3cf81f..04ad77ec97e 100755 --- a/compiler/rustc_codegen_cranelift/scripts/test_rustc_tests.sh +++ b/compiler/rustc_codegen_cranelift/scripts/test_rustc_tests.sh @@ -20,6 +20,7 @@ for test in $(rg -i --files-with-matches "//(\[\w+\])?~[^\|]*\s*ERR|// error-pat done git checkout -- src/test/ui/issues/auxiliary/issue-3136-a.rs # contains //~ERROR, but shouldn't be removed +git checkout -- src/test/ui/proc-macro/pretty-print-hack/ # missing features # ================ @@ -30,6 +31,7 @@ rm src/test/incremental/issue-80691-bad-eval-cache.rs # -Cpanic=abort causes abo # requires compiling with -Cpanic=unwind rm -r src/test/ui/macros/rfc-2011-nicer-assert-messages/ +rm -r src/test/run-make/test-benches # vendor intrinsics rm src/test/ui/sse2.rs # cpuid not supported, so sse2 not detected @@ -64,6 +66,8 @@ rm src/test/ui/fn/dyn-fn-alignment.rs # wants a 256 byte alignment rm -r src/test/run-make/emit-named-files # requires full --emit support rm src/test/ui/abi/stack-probes.rs # stack probes not yet implemented rm src/test/ui/simd/intrinsic/ptr-cast.rs # simd_expose_addr intrinsic unimplemented +rm -r src/test/run-make/repr128-dwarf # debuginfo test +rm src/test/codegen-units/item-collection/asm-sym.rs # requires support for sym in asm!() # optimization tests # ================== @@ -82,20 +86,20 @@ rm src/test/ui/abi/stack-protector.rs # requires stack protector support rm src/test/ui/mir/mir_misc_casts.rs # depends on deduplication of constants rm src/test/ui/mir/mir_raw_fat_ptr.rs # same rm src/test/ui/consts/issue-33537.rs # same +rm src/test/ui/layout/valid_range_oob.rs # different ICE message # doesn't work due to the way the rustc test suite is invoked. # should work when using ./x.py test the way it is intended # ============================================================ -rm -r src/test/run-make/emit-shared-files # requires the rustdoc executable in build/bin/ +rm -r src/test/run-make/emit-shared-files # requires the rustdoc executable in dist/bin/ rm -r src/test/run-make/unstable-flag-required # same rm -r src/test/run-make/rustdoc-* # same rm -r src/test/run-make/issue-88756-default-output # same rm -r src/test/run-make/remap-path-prefix-dwarf # requires llvm-dwarfdump +rm -r src/test/ui/consts/missing_span_in_backtrace.rs # expects sysroot source to be elsewhere # genuine bugs # ============ -rm src/test/ui/allocator/no_std-alloc-error-handler-default.rs # missing rust_oom definition - rm src/test/incremental/spike-neg1.rs # errors out for some reason rm src/test/incremental/spike-neg2.rs # same rm src/test/ui/issues/issue-74564-if-expr-stack-overflow.rs # gives a stackoverflow before the backend runs @@ -104,6 +108,8 @@ rm src/test/ui/type-alias-impl-trait/assoc-projection-ice.rs # produces ICE rm src/test/ui/simd/intrinsic/generic-reduction-pass.rs # simd_reduce_add_unordered doesn't accept an accumulator for integer vectors +rm src/test/ui/runtime/out-of-stack.rs # SIGSEGV instead of SIGABRT for some reason (#1301) + # bugs in the test suite # ====================== rm src/test/ui/backtrace.rs # TODO warning @@ -111,6 +117,8 @@ rm src/test/ui/simple_global_asm.rs # TODO add needs-asm-support rm src/test/ui/test-attrs/test-type.rs # TODO panic message on stderr. correct stdout # not sure if this is actually a bug in the test suite, but the symbol list shows the function without leading _ for some reason rm -r src/test/run-make/native-link-modifier-bundle +rm src/test/ui/process/nofile-limit.rs # TODO some AArch64 linking issue +rm src/test/ui/dyn-star/dispatch-on-pin-mut.rs # TODO failed assertion in vtable::get_ptr_and_method_ref rm src/test/ui/stdio-is-blocking.rs # really slow with unoptimized libstd diff --git a/compiler/rustc_codegen_cranelift/src/abi/mod.rs b/compiler/rustc_codegen_cranelift/src/abi/mod.rs index 98b5fb1cce2..65cc6b43767 100644 --- a/compiler/rustc_codegen_cranelift/src/abi/mod.rs +++ b/compiler/rustc_codegen_cranelift/src/abi/mod.rs @@ -56,13 +56,13 @@ pub(crate) fn conv_to_call_conv(c: Conv, default_call_conv: CallConv) -> CallCon pub(crate) fn get_function_sig<'tcx>( tcx: TyCtxt<'tcx>, - triple: &target_lexicon::Triple, + default_call_conv: CallConv, inst: Instance<'tcx>, ) -> Signature { assert!(!inst.substs.needs_infer()); clif_sig_from_fn_abi( tcx, - CallConv::triple_default(triple), + default_call_conv, &RevealAllLayoutCx(tcx).fn_abi_of_instance(inst, ty::List::empty()), ) } @@ -74,7 +74,7 @@ pub(crate) fn import_function<'tcx>( inst: Instance<'tcx>, ) -> FuncId { let name = tcx.symbol_name(inst).name; - let sig = get_function_sig(tcx, module.isa().triple(), inst); + let sig = get_function_sig(tcx, module.target_config().default_call_conv, inst); match module.declare_function(name, Linkage::Import, &sig) { Ok(func_id) => func_id, Err(ModuleError::IncompatibleDeclaration(_)) => tcx.sess.fatal(&format!( @@ -341,14 +341,13 @@ pub(crate) fn codegen_terminator_call<'tcx>( destination: Place<'tcx>, target: Option<BasicBlock>, ) { - let fn_ty = fx.monomorphize(func.ty(fx.mir, fx.tcx)); - let fn_sig = - fx.tcx.normalize_erasing_late_bound_regions(ParamEnv::reveal_all(), fn_ty.fn_sig(fx.tcx)); + let func = codegen_operand(fx, func); + let fn_sig = func.layout().ty.fn_sig(fx.tcx); let ret_place = codegen_place(fx, destination); // Handle special calls like intrinsics and empty drop glue. - let instance = if let ty::FnDef(def_id, substs) = *fn_ty.kind() { + let instance = if let ty::FnDef(def_id, substs) = *func.layout().ty.kind() { let instance = ty::Instance::expect_resolve(fx.tcx, ty::ParamEnv::reveal_all(), def_id, substs) .polymorphize(fx.tcx); @@ -390,17 +389,17 @@ pub(crate) fn codegen_terminator_call<'tcx>( None }; - let extra_args = &args[fn_sig.inputs().len()..]; + let extra_args = &args[fn_sig.inputs().skip_binder().len()..]; let extra_args = fx .tcx .mk_type_list(extra_args.iter().map(|op_arg| fx.monomorphize(op_arg.ty(fx.mir, fx.tcx)))); let fn_abi = if let Some(instance) = instance { RevealAllLayoutCx(fx.tcx).fn_abi_of_instance(instance, extra_args) } else { - RevealAllLayoutCx(fx.tcx).fn_abi_of_fn_ptr(fn_ty.fn_sig(fx.tcx), extra_args) + RevealAllLayoutCx(fx.tcx).fn_abi_of_fn_ptr(fn_sig, extra_args) }; - let is_cold = if fn_sig.abi == Abi::RustCold { + let is_cold = if fn_sig.abi() == Abi::RustCold { true } else { instance @@ -417,7 +416,7 @@ pub(crate) fn codegen_terminator_call<'tcx>( } // Unpack arguments tuple for closures - let mut args = if fn_sig.abi == Abi::RustCall { + let mut args = if fn_sig.abi() == Abi::RustCall { assert_eq!(args.len(), 2, "rust-call abi requires two arguments"); let self_arg = codegen_call_argument_operand(fx, &args[0]); let pack_arg = codegen_call_argument_operand(fx, &args[1]); @@ -485,7 +484,7 @@ pub(crate) fn codegen_terminator_call<'tcx>( fx.add_comment(nop_inst, "indirect call"); } - let func = codegen_operand(fx, func).load_scalar(fx); + let func = func.load_scalar(fx); let sig = clif_sig_from_fn_abi(fx.tcx, fx.target_config.default_call_conv, &fn_abi); let sig = fx.bcx.import_signature(sig); @@ -516,11 +515,11 @@ pub(crate) fn codegen_terminator_call<'tcx>( }; // FIXME find a cleaner way to support varargs - if fn_sig.c_variadic { - if !matches!(fn_sig.abi, Abi::C { .. }) { + if fn_sig.c_variadic() { + if !matches!(fn_sig.abi(), Abi::C { .. }) { fx.tcx.sess.span_fatal( source_info.span, - &format!("Variadic call for non-C abi {:?}", fn_sig.abi), + &format!("Variadic call for non-C abi {:?}", fn_sig.abi()), ); } let sig_ref = fx.bcx.func.dfg.call_signature(call_inst).unwrap(); diff --git a/compiler/rustc_codegen_cranelift/src/allocator.rs b/compiler/rustc_codegen_cranelift/src/allocator.rs index 12bb00d346d..8508227179a 100644 --- a/compiler/rustc_codegen_cranelift/src/allocator.rs +++ b/compiler/rustc_codegen_cranelift/src/allocator.rs @@ -66,7 +66,7 @@ fn codegen_inner( }; let sig = Signature { - call_conv: CallConv::triple_default(module.isa().triple()), + call_conv: module.target_config().default_call_conv, params: arg_tys.iter().cloned().map(AbiParam::new).collect(), returns: output.into_iter().map(AbiParam::new).collect(), }; @@ -104,7 +104,7 @@ fn codegen_inner( } let sig = Signature { - call_conv: CallConv::triple_default(module.isa().triple()), + call_conv: module.target_config().default_call_conv, params: vec![AbiParam::new(usize_ty), AbiParam::new(usize_ty)], returns: vec![], }; diff --git a/compiler/rustc_codegen_cranelift/src/base.rs b/compiler/rustc_codegen_cranelift/src/base.rs index 06813d7ec95..89d955e8bf2 100644 --- a/compiler/rustc_codegen_cranelift/src/base.rs +++ b/compiler/rustc_codegen_cranelift/src/base.rs @@ -59,7 +59,7 @@ pub(crate) fn codegen_fn<'tcx>( // Declare function let symbol_name = tcx.symbol_name(instance).name.to_string(); - let sig = get_function_sig(tcx, module.isa().triple(), instance); + let sig = get_function_sig(tcx, module.target_config().default_call_conv, instance); let func_id = module.declare_function(&symbol_name, Linkage::Local, &sig).unwrap(); // Make the FunctionBuilder @@ -390,11 +390,9 @@ fn codegen_fn_body(fx: &mut FunctionCx<'_, '_, '_>, start_block: Block) { _ => unreachable!("{:?}", targets), }; - let discr = crate::optimize::peephole::maybe_unwrap_bint(&mut fx.bcx, discr); let (discr, is_inverted) = crate::optimize::peephole::maybe_unwrap_bool_not(&mut fx.bcx, discr); let test_zero = if is_inverted { !test_zero } else { test_zero }; - let discr = crate::optimize::peephole::maybe_unwrap_bint(&mut fx.bcx, discr); if let Some(taken) = crate::optimize::peephole::maybe_known_branch_taken( &fx.bcx, discr, test_zero, ) { @@ -571,7 +569,7 @@ fn codegen_stmt<'tcx>( UnOp::Not => match layout.ty.kind() { ty::Bool => { let res = fx.bcx.ins().icmp_imm(IntCC::Equal, val, 0); - CValue::by_val(fx.bcx.ins().bint(types::I8, res), layout) + CValue::by_val(res, layout) } ty::Uint(_) | ty::Int(_) => { CValue::by_val(fx.bcx.ins().bnot(val), layout) @@ -579,12 +577,6 @@ fn codegen_stmt<'tcx>( _ => unreachable!("un op Not for {:?}", layout.ty), }, UnOp::Neg => match layout.ty.kind() { - ty::Int(IntTy::I128) => { - // FIXME remove this case once ineg.i128 works - let zero = - CValue::const_val(fx, layout, ty::ScalarInt::null(layout.size)); - crate::num::codegen_int_binop(fx, BinOp::Sub, zero, operand) - } ty::Int(_) => CValue::by_val(fx.bcx.ins().ineg(val), layout), ty::Float(_) => CValue::by_val(fx.bcx.ins().fneg(val), layout), _ => unreachable!("un op Neg for {:?}", layout.ty), diff --git a/compiler/rustc_codegen_cranelift/src/cast.rs b/compiler/rustc_codegen_cranelift/src/cast.rs index bad5d1f08a9..5091c5a9fed 100644 --- a/compiler/rustc_codegen_cranelift/src/cast.rs +++ b/compiler/rustc_codegen_cranelift/src/cast.rs @@ -149,7 +149,7 @@ pub(crate) fn clif_int_or_float_cast( } let is_not_nan = fx.bcx.ins().fcmp(FloatCC::Equal, from, from); - let zero = fx.bcx.ins().iconst(to_ty, 0); + let zero = type_zero_value(&mut fx.bcx, to_ty); fx.bcx.ins().select(is_not_nan, val, zero) } else if from_ty.is_float() && to_ty.is_float() { // float -> float diff --git a/compiler/rustc_codegen_cranelift/src/common.rs b/compiler/rustc_codegen_cranelift/src/common.rs index 58959446578..2dcd42fbd8f 100644 --- a/compiler/rustc_codegen_cranelift/src/common.rs +++ b/compiler/rustc_codegen_cranelift/src/common.rs @@ -162,11 +162,20 @@ pub(crate) fn codegen_icmp_imm( } } } else { - let rhs = i64::try_from(rhs).expect("codegen_icmp_imm rhs out of range for <128bit int"); + let rhs = rhs as i64; // Truncates on purpose in case rhs is actually an unsigned value fx.bcx.ins().icmp_imm(intcc, lhs, rhs) } } +pub(crate) fn type_zero_value(bcx: &mut FunctionBuilder<'_>, ty: Type) -> Value { + if ty == types::I128 { + let zero = bcx.ins().iconst(types::I64, 0); + bcx.ins().iconcat(zero, zero) + } else { + bcx.ins().iconst(ty, 0) + } +} + pub(crate) fn type_min_max_value( bcx: &mut FunctionBuilder<'_>, ty: Type, diff --git a/compiler/rustc_codegen_cranelift/src/constant.rs b/compiler/rustc_codegen_cranelift/src/constant.rs index a6bde884084..dee6fb5b513 100644 --- a/compiler/rustc_codegen_cranelift/src/constant.rs +++ b/compiler/rustc_codegen_cranelift/src/constant.rs @@ -28,9 +28,7 @@ impl ConstantCx { } pub(crate) fn finalize(mut self, tcx: TyCtxt<'_>, module: &mut dyn Module) { - //println!("todo {:?}", self.todo); define_all_allocs(tcx, module, &mut self); - //println!("done {:?}", self.done); self.done.clear(); } } @@ -268,16 +266,7 @@ fn data_id_for_static( def_id: DefId, definition: bool, ) -> DataId { - let rlinkage = tcx.codegen_fn_attrs(def_id).linkage; - let linkage = if definition { - crate::linkage::get_static_linkage(tcx, def_id) - } else if rlinkage == Some(rustc_middle::mir::mono::Linkage::ExternalWeak) - || rlinkage == Some(rustc_middle::mir::mono::Linkage::WeakAny) - { - Linkage::Preemptible - } else { - Linkage::Import - }; + let attrs = tcx.codegen_fn_attrs(def_id); let instance = Instance::mono(tcx, def_id).polymorphize(tcx); let symbol_name = tcx.symbol_name(instance).name; @@ -289,22 +278,30 @@ fn data_id_for_static( }; let align = tcx.layout_of(ParamEnv::reveal_all().and(ty)).unwrap().align.pref.bytes(); - let attrs = tcx.codegen_fn_attrs(def_id); + if let Some(import_linkage) = attrs.import_linkage { + assert!(!definition); - let data_id = match module.declare_data( - &*symbol_name, - linkage, - is_mutable, - attrs.flags.contains(CodegenFnAttrFlags::THREAD_LOCAL), - ) { - Ok(data_id) => data_id, - Err(ModuleError::IncompatibleDeclaration(_)) => tcx.sess.fatal(&format!( - "attempt to declare `{symbol_name}` as static, but it was already declared as function" - )), - Err(err) => Err::<_, _>(err).unwrap(), - }; + let linkage = if import_linkage == rustc_middle::mir::mono::Linkage::ExternalWeak + || import_linkage == rustc_middle::mir::mono::Linkage::WeakAny + { + Linkage::Preemptible + } else { + Linkage::Import + }; + + let data_id = match module.declare_data( + &*symbol_name, + linkage, + is_mutable, + attrs.flags.contains(CodegenFnAttrFlags::THREAD_LOCAL), + ) { + Ok(data_id) => data_id, + Err(ModuleError::IncompatibleDeclaration(_)) => tcx.sess.fatal(&format!( + "attempt to declare `{symbol_name}` as static, but it was already declared as function" + )), + Err(err) => Err::<_, _>(err).unwrap(), + }; - if rlinkage.is_some() { // Comment copied from https://github.com/rust-lang/rust/blob/45060c2a66dfd667f88bd8b94261b28a58d85bd5/src/librustc_codegen_llvm/consts.rs#L141 // Declare an internal global `extern_with_linkage_foo` which // is initialized with the address of `foo`. If `foo` is @@ -326,10 +323,34 @@ fn data_id_for_static( Err(ModuleError::DuplicateDefinition(_)) => {} res => res.unwrap(), } - ref_data_id - } else { - data_id + + return ref_data_id; } + + let linkage = if definition { + crate::linkage::get_static_linkage(tcx, def_id) + } else if attrs.linkage == Some(rustc_middle::mir::mono::Linkage::ExternalWeak) + || attrs.linkage == Some(rustc_middle::mir::mono::Linkage::WeakAny) + { + Linkage::Preemptible + } else { + Linkage::Import + }; + + let data_id = match module.declare_data( + &*symbol_name, + linkage, + is_mutable, + attrs.flags.contains(CodegenFnAttrFlags::THREAD_LOCAL), + ) { + Ok(data_id) => data_id, + Err(ModuleError::IncompatibleDeclaration(_)) => tcx.sess.fatal(&format!( + "attempt to declare `{symbol_name}` as static, but it was already declared as function" + )), + Err(err) => Err::<_, _>(err).unwrap(), + }; + + data_id } fn define_all_allocs(tcx: TyCtxt<'_>, module: &mut dyn Module, cx: &mut ConstantCx) { @@ -348,8 +369,6 @@ fn define_all_allocs(tcx: TyCtxt<'_>, module: &mut dyn Module, cx: &mut Constant (data_id, alloc, None) } TodoItem::Static(def_id) => { - //println!("static {:?}", def_id); - let section_name = tcx.codegen_fn_attrs(def_id).link_section; let alloc = tcx.eval_static_initializer(def_id).unwrap(); @@ -359,7 +378,6 @@ fn define_all_allocs(tcx: TyCtxt<'_>, module: &mut dyn Module, cx: &mut Constant } }; - //("data_id {}", data_id); if cx.done.contains(&data_id) { continue; } diff --git a/compiler/rustc_codegen_cranelift/src/debuginfo/unwind.rs b/compiler/rustc_codegen_cranelift/src/debuginfo/unwind.rs index d26392c4913..493359c743f 100644 --- a/compiler/rustc_codegen_cranelift/src/debuginfo/unwind.rs +++ b/compiler/rustc_codegen_cranelift/src/debuginfo/unwind.rs @@ -39,7 +39,9 @@ impl UnwindContext { } pub(crate) fn add_function(&mut self, func_id: FuncId, context: &Context, isa: &dyn TargetIsa) { - let unwind_info = if let Some(unwind_info) = context.create_unwind_info(isa).unwrap() { + let unwind_info = if let Some(unwind_info) = + context.compiled_code().unwrap().create_unwind_info(isa).unwrap() + { unwind_info } else { return; diff --git a/compiler/rustc_codegen_cranelift/src/discriminant.rs b/compiler/rustc_codegen_cranelift/src/discriminant.rs index 97b395bcd05..3cbf313adf0 100644 --- a/compiler/rustc_codegen_cranelift/src/discriminant.rs +++ b/compiler/rustc_codegen_cranelift/src/discriminant.rs @@ -1,6 +1,7 @@ //! Handling of enum discriminants //! -//! Adapted from <https://github.com/rust-lang/rust/blob/d760df5aea483aae041c9a241e7acacf48f75035/src/librustc_codegen_ssa/mir/place.rs> +//! Adapted from <https://github.com/rust-lang/rust/blob/31c0645b9d2539f47eecb096142474b29dc542f7/compiler/rustc_codegen_ssa/src/mir/place.rs> +//! (<https://github.com/rust-lang/rust/pull/104535>) use rustc_target::abi::{Int, TagEncoding, Variants}; @@ -47,13 +48,19 @@ pub(crate) fn codegen_set_discriminant<'tcx>( } => { if variant_index != untagged_variant { let niche = place.place_field(fx, mir::Field::new(tag_field)); + let niche_type = fx.clif_type(niche.layout().ty).unwrap(); let niche_value = variant_index.as_u32() - niche_variants.start().as_u32(); - let niche_value = ty::ScalarInt::try_from_uint( - u128::from(niche_value).wrapping_add(niche_start), - niche.layout().size, - ) - .unwrap(); - let niche_llval = CValue::const_val(fx, niche.layout(), niche_value); + let niche_value = (niche_value as u128).wrapping_add(niche_start); + let niche_value = match niche_type { + types::I128 => { + let lsb = fx.bcx.ins().iconst(types::I64, niche_value as u64 as i64); + let msb = + fx.bcx.ins().iconst(types::I64, (niche_value >> 64) as u64 as i64); + fx.bcx.ins().iconcat(lsb, msb) + } + ty => fx.bcx.ins().iconst(ty, niche_value as i64), + }; + let niche_llval = CValue::by_val(niche_value, niche.layout()); niche.write_cvalue(fx, niche_llval); } } @@ -96,6 +103,7 @@ pub(crate) fn codegen_get_discriminant<'tcx>( } }; + let cast_to_size = dest_layout.layout.size(); let cast_to = fx.clif_type(dest_layout.ty).unwrap(); // Read the tag/niche-encoded discriminant from memory. @@ -114,21 +122,128 @@ pub(crate) fn codegen_get_discriminant<'tcx>( dest.write_cvalue(fx, res); } TagEncoding::Niche { untagged_variant, ref niche_variants, niche_start } => { - // Rebase from niche values to discriminants, and check - // whether the result is in range for the niche variants. - - // We first compute the "relative discriminant" (wrt `niche_variants`), - // that is, if `n = niche_variants.end() - niche_variants.start()`, - // we remap `niche_start..=niche_start + n` (which may wrap around) - // to (non-wrap-around) `0..=n`, to be able to check whether the - // discriminant corresponds to a niche variant with one comparison. - // We also can't go directly to the (variant index) discriminant - // and check that it is in the range `niche_variants`, because - // that might not fit in the same type, on top of needing an extra - // comparison (see also the comment on `let niche_discr`). - let relative_discr = if niche_start == 0 { - tag + let tag_size = tag_scalar.size(fx); + let max_unsigned = tag_size.unsigned_int_max(); + let max_signed = tag_size.signed_int_max() as u128; + let min_signed = max_signed + 1; + let relative_max = niche_variants.end().as_u32() - niche_variants.start().as_u32(); + let niche_end = niche_start.wrapping_add(relative_max as u128) & max_unsigned; + let range = tag_scalar.valid_range(fx); + + let sle = |lhs: u128, rhs: u128| -> bool { + // Signed and unsigned comparisons give the same results, + // except that in signed comparisons an integer with the + // sign bit set is less than one with the sign bit clear. + // Toggle the sign bit to do a signed comparison. + (lhs ^ min_signed) <= (rhs ^ min_signed) + }; + + // We have a subrange `niche_start..=niche_end` inside `range`. + // If the value of the tag is inside this subrange, it's a + // "niche value", an increment of the discriminant. Otherwise it + // indicates the untagged variant. + // A general algorithm to extract the discriminant from the tag + // is: + // relative_tag = tag - niche_start + // is_niche = relative_tag <= (ule) relative_max + // discr = if is_niche { + // cast(relative_tag) + niche_variants.start() + // } else { + // untagged_variant + // } + // However, we will likely be able to emit simpler code. + + // Find the least and greatest values in `range`, considered + // both as signed and unsigned. + let (low_unsigned, high_unsigned) = + if range.start <= range.end { (range.start, range.end) } else { (0, max_unsigned) }; + let (low_signed, high_signed) = if sle(range.start, range.end) { + (range.start, range.end) } else { + (min_signed, max_signed) + }; + + let niches_ule = niche_start <= niche_end; + let niches_sle = sle(niche_start, niche_end); + let cast_smaller = cast_to_size <= tag_size; + + // In the algorithm above, we can change + // cast(relative_tag) + niche_variants.start() + // into + // cast(tag + (niche_variants.start() - niche_start)) + // if either the casted type is no larger than the original + // type, or if the niche values are contiguous (in either the + // signed or unsigned sense). + let can_incr = cast_smaller || niches_ule || niches_sle; + + let data_for_boundary_niche = || -> Option<(IntCC, u128)> { + if !can_incr { + None + } else if niche_start == low_unsigned { + Some((IntCC::UnsignedLessThanOrEqual, niche_end)) + } else if niche_end == high_unsigned { + Some((IntCC::UnsignedGreaterThanOrEqual, niche_start)) + } else if niche_start == low_signed { + Some((IntCC::SignedLessThanOrEqual, niche_end)) + } else if niche_end == high_signed { + Some((IntCC::SignedGreaterThanOrEqual, niche_start)) + } else { + None + } + }; + + let (is_niche, tagged_discr, delta) = if relative_max == 0 { + // Best case scenario: only one tagged variant. This will + // likely become just a comparison and a jump. + // The algorithm is: + // is_niche = tag == niche_start + // discr = if is_niche { + // niche_start + // } else { + // untagged_variant + // } + let is_niche = codegen_icmp_imm(fx, IntCC::Equal, tag, niche_start as i128); + let tagged_discr = + fx.bcx.ins().iconst(cast_to, niche_variants.start().as_u32() as i64); + (is_niche, tagged_discr, 0) + } else if let Some((predicate, constant)) = data_for_boundary_niche() { + // The niche values are either the lowest or the highest in + // `range`. We can avoid the first subtraction in the + // algorithm. + // The algorithm is now this: + // is_niche = tag <= niche_end + // discr = if is_niche { + // cast(tag + (niche_variants.start() - niche_start)) + // } else { + // untagged_variant + // } + // (the first line may instead be tag >= niche_start, + // and may be a signed or unsigned comparison) + // The arithmetic must be done before the cast, so we can + // have the correct wrapping behavior. See issue #104519 for + // the consequences of getting this wrong. + let is_niche = codegen_icmp_imm(fx, predicate, tag, constant as i128); + let delta = (niche_variants.start().as_u32() as u128).wrapping_sub(niche_start); + let incr_tag = if delta == 0 { + tag + } else { + let delta = match fx.bcx.func.dfg.value_type(tag) { + types::I128 => { + let lsb = fx.bcx.ins().iconst(types::I64, delta as u64 as i64); + let msb = fx.bcx.ins().iconst(types::I64, (delta >> 64) as u64 as i64); + fx.bcx.ins().iconcat(lsb, msb) + } + ty => fx.bcx.ins().iconst(ty, delta as i64), + }; + fx.bcx.ins().iadd(tag, delta) + }; + + let cast_tag = clif_intcast(fx, incr_tag, cast_to, !niches_ule); + + (is_niche, cast_tag, 0) + } else { + // The special cases don't apply, so we'll have to go with + // the general algorithm. let niche_start = match fx.bcx.func.dfg.value_type(tag) { types::I128 => { let lsb = fx.bcx.ins().iconst(types::I64, niche_start as u64 as i64); @@ -138,40 +253,40 @@ pub(crate) fn codegen_get_discriminant<'tcx>( } ty => fx.bcx.ins().iconst(ty, niche_start as i64), }; - fx.bcx.ins().isub(tag, niche_start) - }; - let relative_max = niche_variants.end().as_u32() - niche_variants.start().as_u32(); - let is_niche = { - codegen_icmp_imm( + let relative_discr = fx.bcx.ins().isub(tag, niche_start); + let cast_tag = clif_intcast(fx, relative_discr, cast_to, false); + let is_niche = crate::common::codegen_icmp_imm( fx, IntCC::UnsignedLessThanOrEqual, relative_discr, i128::from(relative_max), - ) + ); + (is_niche, cast_tag, niche_variants.start().as_u32() as u128) }; - // NOTE(eddyb) this addition needs to be performed on the final - // type, in case the niche itself can't represent all variant - // indices (e.g. `u8` niche with more than `256` variants, - // but enough uninhabited variants so that the remaining variants - // fit in the niche). - // In other words, `niche_variants.end - niche_variants.start` - // is representable in the niche, but `niche_variants.end` - // might not be, in extreme cases. - let niche_discr = { - let relative_discr = if relative_max == 0 { - // HACK(eddyb) since we have only one niche, we know which - // one it is, and we can avoid having a dynamic value here. - fx.bcx.ins().iconst(cast_to, 0) - } else { - clif_intcast(fx, relative_discr, cast_to, false) + let tagged_discr = if delta == 0 { + tagged_discr + } else { + let delta = match cast_to { + types::I128 => { + let lsb = fx.bcx.ins().iconst(types::I64, delta as u64 as i64); + let msb = fx.bcx.ins().iconst(types::I64, (delta >> 64) as u64 as i64); + fx.bcx.ins().iconcat(lsb, msb) + } + ty => fx.bcx.ins().iconst(ty, delta as i64), }; - fx.bcx.ins().iadd_imm(relative_discr, i64::from(niche_variants.start().as_u32())) + fx.bcx.ins().iadd(tagged_discr, delta) }; - let untagged_variant = - fx.bcx.ins().iconst(cast_to, i64::from(untagged_variant.as_u32())); - let discr = fx.bcx.ins().select(is_niche, niche_discr, untagged_variant); + let untagged_variant = if cast_to == types::I128 { + let zero = fx.bcx.ins().iconst(types::I64, 0); + let untagged_variant = + fx.bcx.ins().iconst(types::I64, i64::from(untagged_variant.as_u32())); + fx.bcx.ins().iconcat(untagged_variant, zero) + } else { + fx.bcx.ins().iconst(cast_to, i64::from(untagged_variant.as_u32())) + }; + let discr = fx.bcx.ins().select(is_niche, tagged_discr, untagged_variant); let res = CValue::by_val(discr, dest_layout); dest.write_cvalue(fx, res); } diff --git a/compiler/rustc_codegen_cranelift/src/driver/jit.rs b/compiler/rustc_codegen_cranelift/src/driver/jit.rs index 6a430b5215e..be1b8c9ead3 100644 --- a/compiler/rustc_codegen_cranelift/src/driver/jit.rs +++ b/compiler/rustc_codegen_cranelift/src/driver/jit.rs @@ -159,7 +159,7 @@ pub(crate) fn run_jit(tcx: TyCtxt<'_>, backend_config: BackendConfig) -> ! { tcx.sess.abort_if_errors(); - jit_module.finalize_definitions(); + jit_module.finalize_definitions().unwrap(); unsafe { cx.unwind_context.register_jit(&jit_module) }; println!( @@ -245,7 +245,11 @@ fn jit_fn(instance_ptr: *const Instance<'static>, trampoline_ptr: *const u8) -> let backend_config = lazy_jit_state.backend_config.clone(); let name = tcx.symbol_name(instance).name; - let sig = crate::abi::get_function_sig(tcx, jit_module.isa().triple(), instance); + let sig = crate::abi::get_function_sig( + tcx, + jit_module.target_config().default_call_conv, + instance, + ); let func_id = jit_module.declare_function(name, Linkage::Export, &sig).unwrap(); let current_ptr = jit_module.read_got_entry(func_id); @@ -278,7 +282,7 @@ fn jit_fn(instance_ptr: *const Instance<'static>, trampoline_ptr: *const u8) -> }); assert!(cx.global_asm.is_empty()); - jit_module.finalize_definitions(); + jit_module.finalize_definitions().unwrap(); unsafe { cx.unwind_context.register_jit(&jit_module) }; jit_module.get_finalized_function(func_id) }) @@ -344,7 +348,7 @@ fn codegen_shim<'tcx>( let pointer_type = module.target_config().pointer_type(); let name = tcx.symbol_name(inst).name; - let sig = crate::abi::get_function_sig(tcx, module.isa().triple(), inst); + let sig = crate::abi::get_function_sig(tcx, module.target_config().default_call_conv, inst); let func_id = module.declare_function(name, Linkage::Export, &sig).unwrap(); let instance_ptr = Box::into_raw(Box::new(inst)); diff --git a/compiler/rustc_codegen_cranelift/src/driver/mod.rs b/compiler/rustc_codegen_cranelift/src/driver/mod.rs index 8f5714ecb41..6e925cea277 100644 --- a/compiler/rustc_codegen_cranelift/src/driver/mod.rs +++ b/compiler/rustc_codegen_cranelift/src/driver/mod.rs @@ -24,7 +24,8 @@ fn predefine_mono_items<'tcx>( MonoItem::Fn(instance) => { let name = tcx.symbol_name(instance).name; let _inst_guard = crate::PrintOnPanic(|| format!("{:?} {}", instance, name)); - let sig = get_function_sig(tcx, module.isa().triple(), instance); + let sig = + get_function_sig(tcx, module.target_config().default_call_conv, instance); let linkage = crate::linkage::get_clif_linkage( mono_item, linkage, diff --git a/compiler/rustc_codegen_cranelift/src/intrinsics/llvm.rs b/compiler/rustc_codegen_cranelift/src/intrinsics/llvm.rs index 783d426c30b..f722e52284f 100644 --- a/compiler/rustc_codegen_cranelift/src/intrinsics/llvm.rs +++ b/compiler/rustc_codegen_cranelift/src/intrinsics/llvm.rs @@ -8,135 +8,37 @@ use rustc_middle::ty::subst::SubstsRef; pub(crate) fn codegen_llvm_intrinsic_call<'tcx>( fx: &mut FunctionCx<'_, '_, 'tcx>, intrinsic: &str, - _substs: SubstsRef<'tcx>, + substs: SubstsRef<'tcx>, args: &[mir::Operand<'tcx>], ret: CPlace<'tcx>, target: Option<BasicBlock>, ) { - match intrinsic { - "llvm.x86.sse2.pause" | "llvm.aarch64.isb" => { - // Spin loop hint - } + if intrinsic.starts_with("llvm.aarch64") { + return llvm_aarch64::codegen_aarch64_llvm_intrinsic_call( + fx, intrinsic, substs, args, ret, target, + ); + } + if intrinsic.starts_with("llvm.x86") { + return llvm_x86::codegen_x86_llvm_intrinsic_call(fx, intrinsic, substs, args, ret, target); + } - // Used by `_mm_movemask_epi8` and `_mm256_movemask_epi8` - "llvm.x86.sse2.pmovmskb.128" | "llvm.x86.avx2.pmovmskb" | "llvm.x86.sse2.movmsk.pd" => { + match intrinsic { + _ if intrinsic.starts_with("llvm.ctlz.v") => { intrinsic_args!(fx, args => (a); intrinsic); - let (lane_count, lane_ty) = a.layout().ty.simd_size_and_type(fx.tcx); - let lane_ty = fx.clif_type(lane_ty).unwrap(); - assert!(lane_count <= 32); - - let mut res = fx.bcx.ins().iconst(types::I32, 0); - - for lane in (0..lane_count).rev() { - let a_lane = a.value_lane(fx, lane).load_scalar(fx); - - // cast float to int - let a_lane = match lane_ty { - types::F32 => fx.bcx.ins().bitcast(types::I32, a_lane), - types::F64 => fx.bcx.ins().bitcast(types::I64, a_lane), - _ => a_lane, - }; - - // extract sign bit of an int - let a_lane_sign = fx.bcx.ins().ushr_imm(a_lane, i64::from(lane_ty.bits() - 1)); - - // shift sign bit into result - let a_lane_sign = clif_intcast(fx, a_lane_sign, types::I32, false); - res = fx.bcx.ins().ishl_imm(res, 1); - res = fx.bcx.ins().bor(res, a_lane_sign); - } - - let res = CValue::by_val(res, fx.layout_of(fx.tcx.types.i32)); - ret.write_cvalue(fx, res); - } - "llvm.x86.sse2.cmp.ps" | "llvm.x86.sse2.cmp.pd" => { - let (x, y, kind) = match args { - [x, y, kind] => (x, y, kind), - _ => bug!("wrong number of args for intrinsic {intrinsic}"), - }; - let x = codegen_operand(fx, x); - let y = codegen_operand(fx, y); - let kind = crate::constant::mir_operand_get_const_val(fx, kind) - .expect("llvm.x86.sse2.cmp.* kind not const"); - - let flt_cc = match kind - .try_to_bits(Size::from_bytes(1)) - .unwrap_or_else(|| panic!("kind not scalar: {:?}", kind)) - { - 0 => FloatCC::Equal, - 1 => FloatCC::LessThan, - 2 => FloatCC::LessThanOrEqual, - 7 => FloatCC::Ordered, - 3 => FloatCC::Unordered, - 4 => FloatCC::NotEqual, - 5 => FloatCC::UnorderedOrGreaterThanOrEqual, - 6 => FloatCC::UnorderedOrGreaterThan, - kind => unreachable!("kind {:?}", kind), - }; - - simd_pair_for_each_lane(fx, x, y, ret, &|fx, lane_ty, res_lane_ty, x_lane, y_lane| { - let res_lane = match lane_ty.kind() { - ty::Float(_) => fx.bcx.ins().fcmp(flt_cc, x_lane, y_lane), - _ => unreachable!("{:?}", lane_ty), - }; - bool_to_zero_or_max_uint(fx, res_lane_ty, res_lane) + simd_for_each_lane(fx, a, ret, &|fx, _lane_ty, _res_lane_ty, lane| { + fx.bcx.ins().clz(lane) }); } - "llvm.x86.sse2.psrli.d" => { - let (a, imm8) = match args { - [a, imm8] => (a, imm8), - _ => bug!("wrong number of args for intrinsic {intrinsic}"), - }; - let a = codegen_operand(fx, a); - let imm8 = crate::constant::mir_operand_get_const_val(fx, imm8) - .expect("llvm.x86.sse2.psrli.d imm8 not const"); - simd_for_each_lane(fx, a, ret, &|fx, _lane_ty, _res_lane_ty, lane| match imm8 - .try_to_bits(Size::from_bytes(4)) - .unwrap_or_else(|| panic!("imm8 not scalar: {:?}", imm8)) - { - imm8 if imm8 < 32 => fx.bcx.ins().ushr_imm(lane, i64::from(imm8 as u8)), - _ => fx.bcx.ins().iconst(types::I32, 0), - }); - } - "llvm.x86.sse2.pslli.d" => { - let (a, imm8) = match args { - [a, imm8] => (a, imm8), - _ => bug!("wrong number of args for intrinsic {intrinsic}"), - }; - let a = codegen_operand(fx, a); - let imm8 = crate::constant::mir_operand_get_const_val(fx, imm8) - .expect("llvm.x86.sse2.psrli.d imm8 not const"); + _ if intrinsic.starts_with("llvm.ctpop.v") => { + intrinsic_args!(fx, args => (a); intrinsic); - simd_for_each_lane(fx, a, ret, &|fx, _lane_ty, _res_lane_ty, lane| match imm8 - .try_to_bits(Size::from_bytes(4)) - .unwrap_or_else(|| panic!("imm8 not scalar: {:?}", imm8)) - { - imm8 if imm8 < 32 => fx.bcx.ins().ishl_imm(lane, i64::from(imm8 as u8)), - _ => fx.bcx.ins().iconst(types::I32, 0), + simd_for_each_lane(fx, a, ret, &|fx, _lane_ty, _res_lane_ty, lane| { + fx.bcx.ins().popcnt(lane) }); } - "llvm.x86.sse2.storeu.dq" => { - intrinsic_args!(fx, args => (mem_addr, a); intrinsic); - let mem_addr = mem_addr.load_scalar(fx); - - // FIXME correctly handle the unalignment - let dest = CPlace::for_ptr(Pointer::new(mem_addr), a.layout()); - dest.write_cvalue(fx, a); - } - "llvm.x86.addcarry.64" => { - intrinsic_args!(fx, args => (c_in, a, b); intrinsic); - let c_in = c_in.load_scalar(fx); - - llvm_add_sub(fx, BinOp::Add, ret, c_in, a, b); - } - "llvm.x86.subborrow.64" => { - intrinsic_args!(fx, args => (b_in, a, b); intrinsic); - let b_in = b_in.load_scalar(fx); - llvm_add_sub(fx, BinOp::Sub, ret, b_in, a, b); - } _ => { fx.tcx .sess @@ -150,47 +52,3 @@ pub(crate) fn codegen_llvm_intrinsic_call<'tcx>( let ret_block = fx.get_block(dest); fx.bcx.ins().jump(ret_block, &[]); } - -// llvm.x86.avx2.vperm2i128 -// llvm.x86.ssse3.pshuf.b.128 -// llvm.x86.avx2.pshuf.b -// llvm.x86.avx2.psrli.w -// llvm.x86.sse2.psrli.w - -fn llvm_add_sub<'tcx>( - fx: &mut FunctionCx<'_, '_, 'tcx>, - bin_op: BinOp, - ret: CPlace<'tcx>, - cb_in: Value, - a: CValue<'tcx>, - b: CValue<'tcx>, -) { - assert_eq!( - a.layout().ty, - fx.tcx.types.u64, - "llvm.x86.addcarry.64/llvm.x86.subborrow.64 second operand must be u64" - ); - assert_eq!( - b.layout().ty, - fx.tcx.types.u64, - "llvm.x86.addcarry.64/llvm.x86.subborrow.64 third operand must be u64" - ); - - // c + carry -> c + first intermediate carry or borrow respectively - let int0 = crate::num::codegen_checked_int_binop(fx, bin_op, a, b); - let c = int0.value_field(fx, mir::Field::new(0)); - let cb0 = int0.value_field(fx, mir::Field::new(1)).load_scalar(fx); - - // c + carry -> c + second intermediate carry or borrow respectively - let cb_in_as_u64 = fx.bcx.ins().uextend(types::I64, cb_in); - let cb_in_as_u64 = CValue::by_val(cb_in_as_u64, fx.layout_of(fx.tcx.types.u64)); - let int1 = crate::num::codegen_checked_int_binop(fx, bin_op, c, cb_in_as_u64); - let (c, cb1) = int1.load_scalar_pair(fx); - - // carry0 | carry1 -> carry or borrow respectively - let cb_out = fx.bcx.ins().bor(cb0, cb1); - - let layout = fx.layout_of(fx.tcx.mk_tup([fx.tcx.types.u8, fx.tcx.types.u64].iter())); - let val = CValue::by_val_pair(cb_out, c, layout); - ret.write_cvalue(fx, val); -} diff --git a/compiler/rustc_codegen_cranelift/src/intrinsics/llvm_aarch64.rs b/compiler/rustc_codegen_cranelift/src/intrinsics/llvm_aarch64.rs new file mode 100644 index 00000000000..b431158d269 --- /dev/null +++ b/compiler/rustc_codegen_cranelift/src/intrinsics/llvm_aarch64.rs @@ -0,0 +1,222 @@ +//! Emulate AArch64 LLVM intrinsics + +use crate::intrinsics::*; +use crate::prelude::*; + +use rustc_middle::ty::subst::SubstsRef; + +pub(crate) fn codegen_aarch64_llvm_intrinsic_call<'tcx>( + fx: &mut FunctionCx<'_, '_, 'tcx>, + intrinsic: &str, + _substs: SubstsRef<'tcx>, + args: &[mir::Operand<'tcx>], + ret: CPlace<'tcx>, + target: Option<BasicBlock>, +) { + // llvm.aarch64.neon.sqshl.v*i* + + match intrinsic { + "llvm.aarch64.isb" => { + fx.bcx.ins().fence(); + } + + _ if intrinsic.starts_with("llvm.aarch64.neon.abs.v") => { + intrinsic_args!(fx, args => (a); intrinsic); + + simd_for_each_lane(fx, a, ret, &|fx, _lane_ty, _res_lane_ty, lane| { + fx.bcx.ins().iabs(lane) + }); + } + + _ if intrinsic.starts_with("llvm.aarch64.neon.cls.v") => { + intrinsic_args!(fx, args => (a); intrinsic); + + simd_for_each_lane(fx, a, ret, &|fx, _lane_ty, _res_lane_ty, lane| { + fx.bcx.ins().cls(lane) + }); + } + + _ if intrinsic.starts_with("llvm.aarch64.neon.rbit.v") => { + intrinsic_args!(fx, args => (a); intrinsic); + + simd_for_each_lane(fx, a, ret, &|fx, _lane_ty, _res_lane_ty, lane| { + fx.bcx.ins().bitrev(lane) + }); + } + + _ if intrinsic.starts_with("llvm.aarch64.neon.sqadd.v") => { + intrinsic_args!(fx, args => (x, y); intrinsic); + + simd_pair_for_each_lane_typed(fx, x, y, ret, &|fx, x_lane, y_lane| { + crate::num::codegen_saturating_int_binop(fx, BinOp::Add, x_lane, y_lane) + }); + } + + _ if intrinsic.starts_with("llvm.aarch64.neon.sqsub.v") => { + intrinsic_args!(fx, args => (x, y); intrinsic); + + simd_pair_for_each_lane_typed(fx, x, y, ret, &|fx, x_lane, y_lane| { + crate::num::codegen_saturating_int_binop(fx, BinOp::Sub, x_lane, y_lane) + }); + } + + _ if intrinsic.starts_with("llvm.aarch64.neon.smax.v") => { + intrinsic_args!(fx, args => (x, y); intrinsic); + + simd_pair_for_each_lane( + fx, + x, + y, + ret, + &|fx, _lane_ty, _res_lane_ty, x_lane, y_lane| { + let gt = fx.bcx.ins().icmp(IntCC::SignedGreaterThan, x_lane, y_lane); + fx.bcx.ins().select(gt, x_lane, y_lane) + }, + ); + } + + _ if intrinsic.starts_with("llvm.aarch64.neon.umax.v") => { + intrinsic_args!(fx, args => (x, y); intrinsic); + + simd_pair_for_each_lane( + fx, + x, + y, + ret, + &|fx, _lane_ty, _res_lane_ty, x_lane, y_lane| { + let gt = fx.bcx.ins().icmp(IntCC::UnsignedGreaterThan, x_lane, y_lane); + fx.bcx.ins().select(gt, x_lane, y_lane) + }, + ); + } + + _ if intrinsic.starts_with("llvm.aarch64.neon.smaxv.i") => { + intrinsic_args!(fx, args => (v); intrinsic); + + simd_reduce(fx, v, None, ret, &|fx, _ty, a, b| { + let gt = fx.bcx.ins().icmp(IntCC::SignedGreaterThan, a, b); + fx.bcx.ins().select(gt, a, b) + }); + } + + _ if intrinsic.starts_with("llvm.aarch64.neon.umaxv.i") => { + intrinsic_args!(fx, args => (v); intrinsic); + + simd_reduce(fx, v, None, ret, &|fx, _ty, a, b| { + let gt = fx.bcx.ins().icmp(IntCC::UnsignedGreaterThan, a, b); + fx.bcx.ins().select(gt, a, b) + }); + } + + _ if intrinsic.starts_with("llvm.aarch64.neon.smin.v") => { + intrinsic_args!(fx, args => (x, y); intrinsic); + + simd_pair_for_each_lane( + fx, + x, + y, + ret, + &|fx, _lane_ty, _res_lane_ty, x_lane, y_lane| { + let gt = fx.bcx.ins().icmp(IntCC::SignedLessThan, x_lane, y_lane); + fx.bcx.ins().select(gt, x_lane, y_lane) + }, + ); + } + + _ if intrinsic.starts_with("llvm.aarch64.neon.umin.v") => { + intrinsic_args!(fx, args => (x, y); intrinsic); + + simd_pair_for_each_lane( + fx, + x, + y, + ret, + &|fx, _lane_ty, _res_lane_ty, x_lane, y_lane| { + let gt = fx.bcx.ins().icmp(IntCC::UnsignedLessThan, x_lane, y_lane); + fx.bcx.ins().select(gt, x_lane, y_lane) + }, + ); + } + + _ if intrinsic.starts_with("llvm.aarch64.neon.sminv.i") => { + intrinsic_args!(fx, args => (v); intrinsic); + + simd_reduce(fx, v, None, ret, &|fx, _ty, a, b| { + let gt = fx.bcx.ins().icmp(IntCC::SignedLessThan, a, b); + fx.bcx.ins().select(gt, a, b) + }); + } + + _ if intrinsic.starts_with("llvm.aarch64.neon.uminv.i") => { + intrinsic_args!(fx, args => (v); intrinsic); + + simd_reduce(fx, v, None, ret, &|fx, _ty, a, b| { + let gt = fx.bcx.ins().icmp(IntCC::UnsignedLessThan, a, b); + fx.bcx.ins().select(gt, a, b) + }); + } + + /* + _ if intrinsic.starts_with("llvm.aarch64.neon.sshl.v") + || intrinsic.starts_with("llvm.aarch64.neon.sqshl.v") + // FIXME split this one out once saturating is implemented + || intrinsic.starts_with("llvm.aarch64.neon.sqshlu.v") => + { + intrinsic_args!(fx, args => (a, b); intrinsic); + + simd_pair_for_each_lane(fx, a, b, ret, &|fx, _lane_ty, _res_lane_ty, a, b| { + // FIXME saturate? + fx.bcx.ins().ishl(a, b) + }); + } + + _ if intrinsic.starts_with("llvm.aarch64.neon.sqshrn.v") => { + let (a, imm32) = match args { + [a, imm32] => (a, imm32), + _ => bug!("wrong number of args for intrinsic {intrinsic}"), + }; + let a = codegen_operand(fx, a); + let imm32 = crate::constant::mir_operand_get_const_val(fx, imm32) + .expect("llvm.aarch64.neon.sqshrn.v* imm32 not const"); + + simd_for_each_lane(fx, a, ret, &|fx, _lane_ty, _res_lane_ty, lane| match imm32 + .try_to_bits(Size::from_bytes(4)) + .unwrap_or_else(|| panic!("imm32 not scalar: {:?}", imm32)) + { + imm32 if imm32 < 32 => fx.bcx.ins().sshr_imm(lane, i64::from(imm32 as u8)), + _ => fx.bcx.ins().iconst(types::I32, 0), + }); + } + + _ if intrinsic.starts_with("llvm.aarch64.neon.sqshrun.v") => { + let (a, imm32) = match args { + [a, imm32] => (a, imm32), + _ => bug!("wrong number of args for intrinsic {intrinsic}"), + }; + let a = codegen_operand(fx, a); + let imm32 = crate::constant::mir_operand_get_const_val(fx, imm32) + .expect("llvm.aarch64.neon.sqshrn.v* imm32 not const"); + + simd_for_each_lane(fx, a, ret, &|fx, _lane_ty, _res_lane_ty, lane| match imm32 + .try_to_bits(Size::from_bytes(4)) + .unwrap_or_else(|| panic!("imm32 not scalar: {:?}", imm32)) + { + imm32 if imm32 < 32 => fx.bcx.ins().ushr_imm(lane, i64::from(imm32 as u8)), + _ => fx.bcx.ins().iconst(types::I32, 0), + }); + } + */ + _ => { + fx.tcx.sess.warn(&format!( + "unsupported AArch64 llvm intrinsic {}; replacing with trap", + intrinsic + )); + crate::trap::trap_unimplemented(fx, intrinsic); + return; + } + } + + let dest = target.expect("all llvm intrinsics used by stdlib should return"); + let ret_block = fx.get_block(dest); + fx.bcx.ins().jump(ret_block, &[]); +} diff --git a/compiler/rustc_codegen_cranelift/src/intrinsics/llvm_x86.rs b/compiler/rustc_codegen_cranelift/src/intrinsics/llvm_x86.rs new file mode 100644 index 00000000000..7bc161fbe55 --- /dev/null +++ b/compiler/rustc_codegen_cranelift/src/intrinsics/llvm_x86.rs @@ -0,0 +1,197 @@ +//! Emulate x86 LLVM intrinsics + +use crate::intrinsics::*; +use crate::prelude::*; + +use rustc_middle::ty::subst::SubstsRef; + +pub(crate) fn codegen_x86_llvm_intrinsic_call<'tcx>( + fx: &mut FunctionCx<'_, '_, 'tcx>, + intrinsic: &str, + _substs: SubstsRef<'tcx>, + args: &[mir::Operand<'tcx>], + ret: CPlace<'tcx>, + target: Option<BasicBlock>, +) { + match intrinsic { + "llvm.x86.sse2.pause" | "llvm.aarch64.isb" => { + // Spin loop hint + } + + // Used by `_mm_movemask_epi8` and `_mm256_movemask_epi8` + "llvm.x86.sse2.pmovmskb.128" | "llvm.x86.avx2.pmovmskb" | "llvm.x86.sse2.movmsk.pd" => { + intrinsic_args!(fx, args => (a); intrinsic); + + let (lane_count, lane_ty) = a.layout().ty.simd_size_and_type(fx.tcx); + let lane_ty = fx.clif_type(lane_ty).unwrap(); + assert!(lane_count <= 32); + + let mut res = fx.bcx.ins().iconst(types::I32, 0); + + for lane in (0..lane_count).rev() { + let a_lane = a.value_lane(fx, lane).load_scalar(fx); + + // cast float to int + let a_lane = match lane_ty { + types::F32 => fx.bcx.ins().bitcast(types::I32, a_lane), + types::F64 => fx.bcx.ins().bitcast(types::I64, a_lane), + _ => a_lane, + }; + + // extract sign bit of an int + let a_lane_sign = fx.bcx.ins().ushr_imm(a_lane, i64::from(lane_ty.bits() - 1)); + + // shift sign bit into result + let a_lane_sign = clif_intcast(fx, a_lane_sign, types::I32, false); + res = fx.bcx.ins().ishl_imm(res, 1); + res = fx.bcx.ins().bor(res, a_lane_sign); + } + + let res = CValue::by_val(res, fx.layout_of(fx.tcx.types.i32)); + ret.write_cvalue(fx, res); + } + "llvm.x86.sse2.cmp.ps" | "llvm.x86.sse2.cmp.pd" => { + let (x, y, kind) = match args { + [x, y, kind] => (x, y, kind), + _ => bug!("wrong number of args for intrinsic {intrinsic}"), + }; + let x = codegen_operand(fx, x); + let y = codegen_operand(fx, y); + let kind = crate::constant::mir_operand_get_const_val(fx, kind) + .expect("llvm.x86.sse2.cmp.* kind not const"); + + let flt_cc = match kind + .try_to_bits(Size::from_bytes(1)) + .unwrap_or_else(|| panic!("kind not scalar: {:?}", kind)) + { + 0 => FloatCC::Equal, + 1 => FloatCC::LessThan, + 2 => FloatCC::LessThanOrEqual, + 7 => FloatCC::Ordered, + 3 => FloatCC::Unordered, + 4 => FloatCC::NotEqual, + 5 => FloatCC::UnorderedOrGreaterThanOrEqual, + 6 => FloatCC::UnorderedOrGreaterThan, + kind => unreachable!("kind {:?}", kind), + }; + + simd_pair_for_each_lane(fx, x, y, ret, &|fx, lane_ty, res_lane_ty, x_lane, y_lane| { + let res_lane = match lane_ty.kind() { + ty::Float(_) => fx.bcx.ins().fcmp(flt_cc, x_lane, y_lane), + _ => unreachable!("{:?}", lane_ty), + }; + bool_to_zero_or_max_uint(fx, res_lane_ty, res_lane) + }); + } + "llvm.x86.sse2.psrli.d" => { + let (a, imm8) = match args { + [a, imm8] => (a, imm8), + _ => bug!("wrong number of args for intrinsic {intrinsic}"), + }; + let a = codegen_operand(fx, a); + let imm8 = crate::constant::mir_operand_get_const_val(fx, imm8) + .expect("llvm.x86.sse2.psrli.d imm8 not const"); + + simd_for_each_lane(fx, a, ret, &|fx, _lane_ty, _res_lane_ty, lane| match imm8 + .try_to_bits(Size::from_bytes(4)) + .unwrap_or_else(|| panic!("imm8 not scalar: {:?}", imm8)) + { + imm8 if imm8 < 32 => fx.bcx.ins().ushr_imm(lane, i64::from(imm8 as u8)), + _ => fx.bcx.ins().iconst(types::I32, 0), + }); + } + "llvm.x86.sse2.pslli.d" => { + let (a, imm8) = match args { + [a, imm8] => (a, imm8), + _ => bug!("wrong number of args for intrinsic {intrinsic}"), + }; + let a = codegen_operand(fx, a); + let imm8 = crate::constant::mir_operand_get_const_val(fx, imm8) + .expect("llvm.x86.sse2.psrli.d imm8 not const"); + + simd_for_each_lane(fx, a, ret, &|fx, _lane_ty, _res_lane_ty, lane| match imm8 + .try_to_bits(Size::from_bytes(4)) + .unwrap_or_else(|| panic!("imm8 not scalar: {:?}", imm8)) + { + imm8 if imm8 < 32 => fx.bcx.ins().ishl_imm(lane, i64::from(imm8 as u8)), + _ => fx.bcx.ins().iconst(types::I32, 0), + }); + } + "llvm.x86.sse2.storeu.dq" => { + intrinsic_args!(fx, args => (mem_addr, a); intrinsic); + let mem_addr = mem_addr.load_scalar(fx); + + // FIXME correctly handle the unalignment + let dest = CPlace::for_ptr(Pointer::new(mem_addr), a.layout()); + dest.write_cvalue(fx, a); + } + "llvm.x86.addcarry.64" => { + intrinsic_args!(fx, args => (c_in, a, b); intrinsic); + let c_in = c_in.load_scalar(fx); + + llvm_add_sub(fx, BinOp::Add, ret, c_in, a, b); + } + "llvm.x86.subborrow.64" => { + intrinsic_args!(fx, args => (b_in, a, b); intrinsic); + let b_in = b_in.load_scalar(fx); + + llvm_add_sub(fx, BinOp::Sub, ret, b_in, a, b); + } + _ => { + fx.tcx.sess.warn(&format!( + "unsupported x86 llvm intrinsic {}; replacing with trap", + intrinsic + )); + crate::trap::trap_unimplemented(fx, intrinsic); + return; + } + } + + let dest = target.expect("all llvm intrinsics used by stdlib should return"); + let ret_block = fx.get_block(dest); + fx.bcx.ins().jump(ret_block, &[]); +} + +// llvm.x86.avx2.vperm2i128 +// llvm.x86.ssse3.pshuf.b.128 +// llvm.x86.avx2.pshuf.b +// llvm.x86.avx2.psrli.w +// llvm.x86.sse2.psrli.w + +fn llvm_add_sub<'tcx>( + fx: &mut FunctionCx<'_, '_, 'tcx>, + bin_op: BinOp, + ret: CPlace<'tcx>, + cb_in: Value, + a: CValue<'tcx>, + b: CValue<'tcx>, +) { + assert_eq!( + a.layout().ty, + fx.tcx.types.u64, + "llvm.x86.addcarry.64/llvm.x86.subborrow.64 second operand must be u64" + ); + assert_eq!( + b.layout().ty, + fx.tcx.types.u64, + "llvm.x86.addcarry.64/llvm.x86.subborrow.64 third operand must be u64" + ); + + // c + carry -> c + first intermediate carry or borrow respectively + let int0 = crate::num::codegen_checked_int_binop(fx, bin_op, a, b); + let c = int0.value_field(fx, mir::Field::new(0)); + let cb0 = int0.value_field(fx, mir::Field::new(1)).load_scalar(fx); + + // c + carry -> c + second intermediate carry or borrow respectively + let cb_in_as_u64 = fx.bcx.ins().uextend(types::I64, cb_in); + let cb_in_as_u64 = CValue::by_val(cb_in_as_u64, fx.layout_of(fx.tcx.types.u64)); + let int1 = crate::num::codegen_checked_int_binop(fx, bin_op, c, cb_in_as_u64); + let (c, cb1) = int1.load_scalar_pair(fx); + + // carry0 | carry1 -> carry or borrow respectively + let cb_out = fx.bcx.ins().bor(cb0, cb1); + + let layout = fx.layout_of(fx.tcx.mk_tup([fx.tcx.types.u8, fx.tcx.types.u64].iter())); + let val = CValue::by_val_pair(cb_out, c, layout); + ret.write_cvalue(fx, val); +} diff --git a/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs b/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs index 0302b843aa2..7a380acf798 100644 --- a/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs +++ b/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs @@ -14,6 +14,8 @@ macro_rules! intrinsic_args { mod cpuid; mod llvm; +mod llvm_aarch64; +mod llvm_x86; mod simd; pub(crate) use cpuid::codegen_cpuid_call; @@ -195,8 +197,7 @@ fn bool_to_zero_or_max_uint<'tcx>( ty => ty, }; - let val = fx.bcx.ins().bint(int_ty, val); - let mut res = fx.bcx.ins().ineg(val); + let mut res = fx.bcx.ins().bmask(int_ty, val); if ty.is_float() { res = fx.bcx.ins().bitcast(ty, res); @@ -632,85 +633,15 @@ fn codegen_regular_intrinsic_call<'tcx>( ret.write_cvalue(fx, res); } sym::bswap => { - // FIXME(CraneStation/cranelift#794) add bswap instruction to cranelift - fn swap(bcx: &mut FunctionBuilder<'_>, v: Value) -> Value { - match bcx.func.dfg.value_type(v) { - types::I8 => v, - - // https://code.woboq.org/gcc/include/bits/byteswap.h.html - types::I16 => { - let tmp1 = bcx.ins().ishl_imm(v, 8); - let n1 = bcx.ins().band_imm(tmp1, 0xFF00); - - let tmp2 = bcx.ins().ushr_imm(v, 8); - let n2 = bcx.ins().band_imm(tmp2, 0x00FF); - - bcx.ins().bor(n1, n2) - } - types::I32 => { - let tmp1 = bcx.ins().ishl_imm(v, 24); - let n1 = bcx.ins().band_imm(tmp1, 0xFF00_0000); - - let tmp2 = bcx.ins().ishl_imm(v, 8); - let n2 = bcx.ins().band_imm(tmp2, 0x00FF_0000); - - let tmp3 = bcx.ins().ushr_imm(v, 8); - let n3 = bcx.ins().band_imm(tmp3, 0x0000_FF00); - - let tmp4 = bcx.ins().ushr_imm(v, 24); - let n4 = bcx.ins().band_imm(tmp4, 0x0000_00FF); - - let or_tmp1 = bcx.ins().bor(n1, n2); - let or_tmp2 = bcx.ins().bor(n3, n4); - bcx.ins().bor(or_tmp1, or_tmp2) - } - types::I64 => { - let tmp1 = bcx.ins().ishl_imm(v, 56); - let n1 = bcx.ins().band_imm(tmp1, 0xFF00_0000_0000_0000u64 as i64); - - let tmp2 = bcx.ins().ishl_imm(v, 40); - let n2 = bcx.ins().band_imm(tmp2, 0x00FF_0000_0000_0000u64 as i64); - - let tmp3 = bcx.ins().ishl_imm(v, 24); - let n3 = bcx.ins().band_imm(tmp3, 0x0000_FF00_0000_0000u64 as i64); - - let tmp4 = bcx.ins().ishl_imm(v, 8); - let n4 = bcx.ins().band_imm(tmp4, 0x0000_00FF_0000_0000u64 as i64); - - let tmp5 = bcx.ins().ushr_imm(v, 8); - let n5 = bcx.ins().band_imm(tmp5, 0x0000_0000_FF00_0000u64 as i64); - - let tmp6 = bcx.ins().ushr_imm(v, 24); - let n6 = bcx.ins().band_imm(tmp6, 0x0000_0000_00FF_0000u64 as i64); - - let tmp7 = bcx.ins().ushr_imm(v, 40); - let n7 = bcx.ins().band_imm(tmp7, 0x0000_0000_0000_FF00u64 as i64); - - let tmp8 = bcx.ins().ushr_imm(v, 56); - let n8 = bcx.ins().band_imm(tmp8, 0x0000_0000_0000_00FFu64 as i64); - - let or_tmp1 = bcx.ins().bor(n1, n2); - let or_tmp2 = bcx.ins().bor(n3, n4); - let or_tmp3 = bcx.ins().bor(n5, n6); - let or_tmp4 = bcx.ins().bor(n7, n8); - - let or_tmp5 = bcx.ins().bor(or_tmp1, or_tmp2); - let or_tmp6 = bcx.ins().bor(or_tmp3, or_tmp4); - bcx.ins().bor(or_tmp5, or_tmp6) - } - types::I128 => { - let (lo, hi) = bcx.ins().isplit(v); - let lo = swap(bcx, lo); - let hi = swap(bcx, hi); - bcx.ins().iconcat(hi, lo) - } - ty => unreachable!("bswap {}", ty), - } - } intrinsic_args!(fx, args => (arg); intrinsic); let val = arg.load_scalar(fx); - let res = CValue::by_val(swap(&mut fx.bcx, val), arg.layout()); + let res = if fx.bcx.func.dfg.value_type(val) == types::I8 { + val + } else { + fx.bcx.ins().bswap(val) + }; + let res = CValue::by_val(res, arg.layout()); ret.write_cvalue(fx, res); } sym::assert_inhabited | sym::assert_zero_valid | sym::assert_uninit_valid => { @@ -936,8 +867,7 @@ fn codegen_regular_intrinsic_call<'tcx>( let old = fx.bcx.ins().atomic_cas(MemFlags::trusted(), ptr, test_old, new); let is_eq = fx.bcx.ins().icmp(IntCC::Equal, old, test_old); - let ret_val = - CValue::by_val_pair(old, fx.bcx.ins().bint(types::I8, is_eq), ret.layout()); + let ret_val = CValue::by_val_pair(old, is_eq, ret.layout()); ret.write_cvalue(fx, ret_val) } @@ -1259,8 +1189,7 @@ fn codegen_regular_intrinsic_call<'tcx>( flags.set_notrap(); let lhs_val = fx.bcx.ins().load(clty, flags, lhs_ref, 0); let rhs_val = fx.bcx.ins().load(clty, flags, rhs_ref, 0); - let eq = fx.bcx.ins().icmp(IntCC::Equal, lhs_val, rhs_val); - fx.bcx.ins().bint(types::I8, eq) + fx.bcx.ins().icmp(IntCC::Equal, lhs_val, rhs_val) } else { // Just call `memcmp` (like slices do in core) when the // size is too large or it's not a power-of-two. @@ -1270,8 +1199,7 @@ fn codegen_regular_intrinsic_call<'tcx>( let returns = vec![AbiParam::new(types::I32)]; let args = &[lhs_ref, rhs_ref, bytes_val]; let cmp = fx.lib_call("memcmp", params, returns, args)[0]; - let eq = fx.bcx.ins().icmp_imm(IntCC::Equal, cmp, 0); - fx.bcx.ins().bint(types::I8, eq) + fx.bcx.ins().icmp_imm(IntCC::Equal, cmp, 0) }; ret.write_cvalue(fx, CValue::by_val(is_eq_value, ret.layout())); } diff --git a/compiler/rustc_codegen_cranelift/src/intrinsics/simd.rs b/compiler/rustc_codegen_cranelift/src/intrinsics/simd.rs index 51fce8c854b..14f5e918739 100644 --- a/compiler/rustc_codegen_cranelift/src/intrinsics/simd.rs +++ b/compiler/rustc_codegen_cranelift/src/intrinsics/simd.rs @@ -112,10 +112,7 @@ pub(super) fn codegen_simd_intrinsic_call<'tcx>( _ => unreachable!(), }; - let ty = fx.clif_type(res_lane_ty).unwrap(); - - let res_lane = fx.bcx.ins().bint(ty, res_lane); - fx.bcx.ins().ineg(res_lane) + bool_to_zero_or_max_uint(fx, res_lane_ty, res_lane) }); } @@ -716,7 +713,7 @@ pub(super) fn codegen_simd_intrinsic_call<'tcx>( let res_type = Type::int_with_byte_size(u16::try_from(expected_bytes).unwrap()).unwrap(); - let mut res = fx.bcx.ins().iconst(res_type, 0); + let mut res = type_zero_value(&mut fx.bcx, res_type); let lanes = match fx.tcx.sess.target.endian { Endian::Big => Box::new(0..lane_count) as Box<dyn Iterator<Item = u64>>, diff --git a/compiler/rustc_codegen_cranelift/src/main_shim.rs b/compiler/rustc_codegen_cranelift/src/main_shim.rs index f7434633ea4..c10054e7f0d 100644 --- a/compiler/rustc_codegen_cranelift/src/main_shim.rs +++ b/compiler/rustc_codegen_cranelift/src/main_shim.rs @@ -65,7 +65,7 @@ pub(crate) fn maybe_create_entry_wrapper( returns: vec![AbiParam::new(m.target_config().pointer_type() /*isize*/)], call_conv: crate::conv_to_call_conv( tcx.sess.target.options.entry_abi, - CallConv::triple_default(m.isa().triple()), + m.target_config().default_call_conv, ), }; @@ -75,7 +75,7 @@ pub(crate) fn maybe_create_entry_wrapper( let instance = Instance::mono(tcx, rust_main_def_id).polymorphize(tcx); let main_name = tcx.symbol_name(instance).name; - let main_sig = get_function_sig(tcx, m.isa().triple(), instance); + let main_sig = get_function_sig(tcx, m.target_config().default_call_conv, instance); let main_func_id = m.declare_function(main_name, Linkage::Import, &main_sig).unwrap(); let mut ctx = Context::new(); @@ -119,7 +119,7 @@ pub(crate) fn maybe_create_entry_wrapper( .polymorphize(tcx); let report_name = tcx.symbol_name(report).name; - let report_sig = get_function_sig(tcx, m.isa().triple(), report); + let report_sig = get_function_sig(tcx, m.target_config().default_call_conv, report); let report_func_id = m.declare_function(report_name, Linkage::Import, &report_sig).unwrap(); let report_func_ref = m.declare_func_in_func(report_func_id, &mut bcx.func); diff --git a/compiler/rustc_codegen_cranelift/src/num.rs b/compiler/rustc_codegen_cranelift/src/num.rs index ecbab408ded..afacbec6445 100644 --- a/compiler/rustc_codegen_cranelift/src/num.rs +++ b/compiler/rustc_codegen_cranelift/src/num.rs @@ -49,7 +49,6 @@ fn codegen_compare_bin_op<'tcx>( ) -> CValue<'tcx> { let intcc = crate::num::bin_op_to_intcc(bin_op, signed).unwrap(); let val = fx.bcx.ins().icmp(intcc, lhs, rhs); - let val = fx.bcx.ins().bint(types::I8, val); CValue::by_val(val, fx.layout_of(fx.tcx.types.bool)) } @@ -290,8 +289,6 @@ pub(crate) fn codegen_checked_int_binop<'tcx>( _ => bug!("binop {:?} on checked int/uint lhs: {:?} rhs: {:?}", bin_op, in_lhs, in_rhs), }; - let has_overflow = fx.bcx.ins().bint(types::I8, has_overflow); - let out_layout = fx.layout_of(fx.tcx.mk_tup([in_lhs.layout().ty, fx.tcx.types.bool].iter())); CValue::by_val_pair(res, has_overflow, out_layout) } @@ -368,7 +365,6 @@ pub(crate) fn codegen_float_binop<'tcx>( _ => unreachable!(), }; let val = fx.bcx.ins().fcmp(fltcc, lhs, rhs); - let val = fx.bcx.ins().bint(types::I8, val); return CValue::by_val(val, fx.layout_of(fx.tcx.types.bool)); } _ => unreachable!("{:?}({:?}, {:?})", bin_op, in_lhs, in_rhs), @@ -440,7 +436,7 @@ pub(crate) fn codegen_ptr_binop<'tcx>( _ => panic!("bin_op {:?} on ptr", bin_op), }; - CValue::by_val(fx.bcx.ins().bint(types::I8, res), fx.layout_of(fx.tcx.types.bool)) + CValue::by_val(res, fx.layout_of(fx.tcx.types.bool)) } } diff --git a/compiler/rustc_codegen_cranelift/src/optimize/peephole.rs b/compiler/rustc_codegen_cranelift/src/optimize/peephole.rs index d637b4d8929..7f45bbd8f28 100644 --- a/compiler/rustc_codegen_cranelift/src/optimize/peephole.rs +++ b/compiler/rustc_codegen_cranelift/src/optimize/peephole.rs @@ -3,19 +3,6 @@ use cranelift_codegen::ir::{condcodes::IntCC, InstructionData, Opcode, Value, ValueDef}; use cranelift_frontend::FunctionBuilder; -/// If the given value was produced by a `bint` instruction, return it's input, otherwise return the -/// given value. -pub(crate) fn maybe_unwrap_bint(bcx: &mut FunctionBuilder<'_>, arg: Value) -> Value { - if let ValueDef::Result(arg_inst, 0) = bcx.func.dfg.value_def(arg) { - match bcx.func.dfg[arg_inst] { - InstructionData::Unary { opcode: Opcode::Bint, arg } => arg, - _ => arg, - } - } else { - arg - } -} - /// If the given value was produced by the lowering of `Rvalue::Not` return the input and true, /// otherwise return the given value and false. pub(crate) fn maybe_unwrap_bool_not(bcx: &mut FunctionBuilder<'_>, arg: Value) -> (Value, bool) { @@ -48,13 +35,6 @@ pub(crate) fn maybe_known_branch_taken( }; match bcx.func.dfg[arg_inst] { - InstructionData::UnaryBool { opcode: Opcode::Bconst, imm } => { - if test_zero { - Some(!imm) - } else { - Some(imm) - } - } InstructionData::UnaryImm { opcode: Opcode::Iconst, imm } => { if test_zero { Some(imm.bits() == 0) diff --git a/compiler/rustc_codegen_cranelift/src/value_and_place.rs b/compiler/rustc_codegen_cranelift/src/value_and_place.rs index 34746ff6b66..fe8af21ac6d 100644 --- a/compiler/rustc_codegen_cranelift/src/value_and_place.rs +++ b/compiler/rustc_codegen_cranelift/src/value_and_place.rs @@ -392,7 +392,7 @@ impl<'tcx> CPlace<'tcx> { local: Local, layout: TyAndLayout<'tcx>, ) -> CPlace<'tcx> { - let var = Variable::with_u32(fx.next_ssa_var); + let var = Variable::from_u32(fx.next_ssa_var); fx.next_ssa_var += 1; fx.bcx.declare_var(var, fx.clif_type(layout.ty).unwrap()); CPlace { inner: CPlaceInner::Var(local, var), layout } @@ -403,9 +403,9 @@ impl<'tcx> CPlace<'tcx> { local: Local, layout: TyAndLayout<'tcx>, ) -> CPlace<'tcx> { - let var1 = Variable::with_u32(fx.next_ssa_var); + let var1 = Variable::from_u32(fx.next_ssa_var); fx.next_ssa_var += 1; - let var2 = Variable::with_u32(fx.next_ssa_var); + let var2 = Variable::from_u32(fx.next_ssa_var); fx.next_ssa_var += 1; let (ty1, ty2) = fx.clif_pair_type(layout.ty).unwrap(); @@ -515,9 +515,7 @@ impl<'tcx> CPlace<'tcx> { | (types::F32, types::I32) | (types::I64, types::F64) | (types::F64, types::I64) => fx.bcx.ins().bitcast(dst_ty, data), - _ if src_ty.is_vector() && dst_ty.is_vector() => { - fx.bcx.ins().raw_bitcast(dst_ty, data) - } + _ if src_ty.is_vector() && dst_ty.is_vector() => fx.bcx.ins().bitcast(dst_ty, data), _ if src_ty.is_vector() || dst_ty.is_vector() => { // FIXME do something more efficient for transmutes between vectors and integers. let stack_slot = fx.bcx.create_sized_stack_slot(StackSlotData { @@ -590,7 +588,10 @@ impl<'tcx> CPlace<'tcx> { return; } CPlaceInner::VarPair(_local, var1, var2) => { - let (data1, data2) = CValue(from.0, dst_layout).load_scalar_pair(fx); + let (ptr, meta) = from.force_stack(fx); + assert!(meta.is_none()); + let (data1, data2) = + CValue(CValueInner::ByRef(ptr, None), dst_layout).load_scalar_pair(fx); let (dst_ty1, dst_ty2) = fx.clif_pair_type(self.layout().ty).unwrap(); transmute_value(fx, var1, data1, dst_ty1); transmute_value(fx, var2, data2, dst_ty2); diff --git a/compiler/rustc_codegen_cranelift/test.sh b/compiler/rustc_codegen_cranelift/test.sh index 3d929a1d50c..13e7784539d 100755 --- a/compiler/rustc_codegen_cranelift/test.sh +++ b/compiler/rustc_codegen_cranelift/test.sh @@ -1,2 +1,2 @@ #!/usr/bin/env bash -exec ./y.rs test +exec ./y.rs test "$@" diff --git a/compiler/rustc_codegen_cranelift/y.rs b/compiler/rustc_codegen_cranelift/y.rs index f177b91c2c4..02e1e21ade1 100755 --- a/compiler/rustc_codegen_cranelift/y.rs +++ b/compiler/rustc_codegen_cranelift/y.rs @@ -3,7 +3,7 @@ # This block is ignored by rustc set -e echo "[BUILD] y.rs" 1>&2 -rustc $0 -o ${0/.rs/.bin} -Cdebuginfo=1 +rustc $0 -o ${0/.rs/.bin} -Cdebuginfo=1 --edition 2021 exec ${0/.rs/.bin} $@ */ diff --git a/compiler/rustc_codegen_llvm/src/back/archive.rs b/compiler/rustc_codegen_llvm/src/back/archive.rs index 0aee1a1439b..36aba5bb740 100644 --- a/compiler/rustc_codegen_llvm/src/back/archive.rs +++ b/compiler/rustc_codegen_llvm/src/back/archive.rs @@ -15,8 +15,8 @@ use crate::errors::{ use crate::llvm::archive_ro::{ArchiveRO, Child}; use crate::llvm::{self, ArchiveKind, LLVMMachineType, LLVMRustCOFFShortExport}; use rustc_codegen_ssa::back::archive::{ - get_native_object_symbols, try_extract_macho_fat_archive, ArArchiveBuilder, - ArchiveBuildFailure, ArchiveBuilder, ArchiveBuilderBuilder, UnknownArchiveKind, + get_native_object_symbols, ArArchiveBuilder, ArchiveBuildFailure, ArchiveBuilder, + ArchiveBuilderBuilder, UnknownArchiveKind, }; use rustc_session::cstore::DllImport; @@ -66,13 +66,7 @@ impl<'a> ArchiveBuilder<'a> for LlvmArchiveBuilder<'a> { archive: &Path, skip: Box<dyn FnMut(&str) -> bool + 'static>, ) -> io::Result<()> { - let mut archive = archive.to_path_buf(); - if self.sess.target.llvm_target.contains("-apple-macosx") { - if let Some(new_archive) = try_extract_macho_fat_archive(&self.sess, &archive)? { - archive = new_archive - } - } - let archive_ro = match ArchiveRO::open(&archive) { + let archive_ro = match ArchiveRO::open(archive) { Ok(ar) => ar, Err(e) => return Err(io::Error::new(io::ErrorKind::Other, e)), }; @@ -80,7 +74,7 @@ impl<'a> ArchiveBuilder<'a> for LlvmArchiveBuilder<'a> { return Ok(()); } self.additions.push(Addition::Archive { - path: archive, + path: archive.to_path_buf(), archive: archive_ro, skip: Box::new(skip), }); diff --git a/compiler/rustc_codegen_llvm/src/back/lto.rs b/compiler/rustc_codegen_llvm/src/back/lto.rs index 551663bfbbd..e20dc906bce 100644 --- a/compiler/rustc_codegen_llvm/src/back/lto.rs +++ b/compiler/rustc_codegen_llvm/src/back/lto.rs @@ -210,7 +210,7 @@ pub(crate) fn run_thin( } pub(crate) fn prepare_thin(module: ModuleCodegen<ModuleLlvm>) -> (String, ThinBuffer) { - let name = module.name.clone(); + let name = module.name; let buffer = ThinBuffer::new(module.module_llvm.llmod(), true); (name, buffer) } diff --git a/compiler/rustc_codegen_llvm/src/context.rs b/compiler/rustc_codegen_llvm/src/context.rs index aa1735f38ac..f3bff5d5716 100644 --- a/compiler/rustc_codegen_llvm/src/context.rs +++ b/compiler/rustc_codegen_llvm/src/context.rs @@ -3,7 +3,6 @@ use crate::back::write::to_llvm_code_model; use crate::callee::get_fn; use crate::coverageinfo; use crate::debuginfo; -use crate::errors::BranchProtectionRequiresAArch64; use crate::llvm; use crate::llvm_util; use crate::type_::Type; @@ -281,9 +280,7 @@ pub unsafe fn create_module<'ll>( } if let Some(BranchProtection { bti, pac_ret }) = sess.opts.unstable_opts.branch_protection { - if sess.target.arch != "aarch64" { - sess.emit_err(BranchProtectionRequiresAArch64); - } else { + if sess.target.arch == "aarch64" { llvm::LLVMRustAddModuleFlag( llmod, llvm::LLVMModFlagBehavior::Error, @@ -309,6 +306,11 @@ pub unsafe fn create_module<'ll>( "sign-return-address-with-bkey\0".as_ptr().cast(), u32::from(pac_opts.key == PAuthKey::B), ); + } else { + bug!( + "branch-protection used on non-AArch64 target; \ + this should be checked in rustc_session." + ); } } diff --git a/compiler/rustc_codegen_llvm/src/errors.rs b/compiler/rustc_codegen_llvm/src/errors.rs index af9f31fc324..b4620997242 100644 --- a/compiler/rustc_codegen_llvm/src/errors.rs +++ b/compiler/rustc_codegen_llvm/src/errors.rs @@ -52,10 +52,6 @@ pub(crate) struct SymbolAlreadyDefined<'a> { } #[derive(Diagnostic)] -#[diag(codegen_llvm_branch_protection_requires_aarch64)] -pub(crate) struct BranchProtectionRequiresAArch64; - -#[derive(Diagnostic)] #[diag(codegen_llvm_invalid_minimum_alignment)] pub(crate) struct InvalidMinimumAlignment { pub err: String, diff --git a/compiler/rustc_codegen_ssa/src/back/archive.rs b/compiler/rustc_codegen_ssa/src/back/archive.rs index 58558fb8c4b..5266d8858d4 100644 --- a/compiler/rustc_codegen_ssa/src/back/archive.rs +++ b/compiler/rustc_codegen_ssa/src/back/archive.rs @@ -14,7 +14,7 @@ use tempfile::Builder as TempFileBuilder; use std::error::Error; use std::fs::File; -use std::io::{self, Write}; +use std::io; use std::path::{Path, PathBuf}; // Re-exporting for rustc_codegen_llvm::back::archive @@ -116,12 +116,11 @@ impl<'a> ArArchiveBuilder<'a> { } } -fn try_filter_fat_archs( +fn try_filter_fat_archs<'a>( archs: object::read::Result<&[impl FatArch]>, target_arch: object::Architecture, - archive_path: &Path, - archive_map_data: &[u8], -) -> io::Result<Option<PathBuf>> { + archive_map_data: &'a [u8], +) -> io::Result<Option<(&'a [u8], u64)>> { let archs = archs.map_err(|e| io::Error::new(io::ErrorKind::Other, e))?; let desired = match archs.iter().filter(|a| a.architecture() == target_arch).next() { @@ -129,38 +128,30 @@ fn try_filter_fat_archs( None => return Ok(None), }; - let (mut new_f, extracted_path) = tempfile::Builder::new() - .suffix(archive_path.file_name().unwrap()) - .tempfile()? - .keep() - .unwrap(); - - new_f.write_all( + Ok(Some(( desired.data(archive_map_data).map_err(|e| io::Error::new(io::ErrorKind::Other, e))?, - )?; - - Ok(Some(extracted_path)) + desired.offset().into(), + ))) } -pub fn try_extract_macho_fat_archive( +pub fn try_extract_macho_fat_archive<'a>( sess: &Session, - archive_path: &Path, -) -> io::Result<Option<PathBuf>> { - let archive_map = unsafe { Mmap::map(File::open(&archive_path)?)? }; + archive_bytes: &'a [u8], +) -> io::Result<Option<(&'a [u8], u64)>> { let target_arch = match sess.target.arch.as_ref() { "aarch64" => object::Architecture::Aarch64, "x86_64" => object::Architecture::X86_64, _ => return Ok(None), }; - match object::macho::FatHeader::parse(&*archive_map) { + match object::macho::FatHeader::parse(archive_bytes) { Ok(h) if h.magic.get(object::endian::BigEndian) == object::macho::FAT_MAGIC => { - let archs = object::macho::FatHeader::parse_arch32(&*archive_map); - try_filter_fat_archs(archs, target_arch, archive_path, &*archive_map) + let archs = object::macho::FatHeader::parse_arch32(archive_bytes); + try_filter_fat_archs(archs, target_arch, archive_bytes) } Ok(h) if h.magic.get(object::endian::BigEndian) == object::macho::FAT_MAGIC_64 => { - let archs = object::macho::FatHeader::parse_arch64(&*archive_map); - try_filter_fat_archs(archs, target_arch, archive_path, &*archive_map) + let archs = object::macho::FatHeader::parse_arch64(archive_bytes); + try_filter_fat_archs(archs, target_arch, archive_bytes) } // Not a FatHeader at all, just return None. _ => Ok(None), @@ -173,21 +164,24 @@ impl<'a> ArchiveBuilder<'a> for ArArchiveBuilder<'a> { archive_path: &Path, mut skip: Box<dyn FnMut(&str) -> bool + 'static>, ) -> io::Result<()> { - let mut archive_path = archive_path.to_path_buf(); - if self.sess.target.llvm_target.contains("-apple-macosx") { - if let Some(new_archive_path) = - try_extract_macho_fat_archive(&self.sess, &archive_path)? - { - archive_path = new_archive_path - } - } - + let archive_map = unsafe { Mmap::map(File::open(&archive_path)?)? }; if self.src_archives.iter().any(|archive| archive.0 == archive_path) { return Ok(()); } - let archive_map = unsafe { Mmap::map(File::open(&archive_path)?)? }; - let archive = ArchiveFile::parse(&*archive_map) + let (archive_bytes, offset) = if self.sess.target.llvm_target.contains("-apple-macosx") { + if let Some((sub_archive, archive_offset)) = + try_extract_macho_fat_archive(&self.sess, &*archive_map)? + { + (sub_archive, Some(archive_offset)) + } else { + (&*archive_map, None) + } + } else { + (&*archive_map, None) + }; + + let archive = ArchiveFile::parse(&*archive_bytes) .map_err(|err| io::Error::new(io::ErrorKind::InvalidData, err))?; let archive_index = self.src_archives.len(); @@ -196,9 +190,13 @@ impl<'a> ArchiveBuilder<'a> for ArArchiveBuilder<'a> { let file_name = String::from_utf8(entry.name().to_vec()) .map_err(|err| io::Error::new(io::ErrorKind::InvalidData, err))?; if !skip(&file_name) { + let mut range = entry.file_range(); + if let Some(offset) = offset { + range.0 += offset; + } self.entries.push(( file_name.into_bytes(), - ArchiveEntry::FromArchive { archive_index, file_range: entry.file_range() }, + ArchiveEntry::FromArchive { archive_index, file_range: range }, )); } } diff --git a/compiler/rustc_codegen_ssa/src/back/link.rs b/compiler/rustc_codegen_ssa/src/back/link.rs index 882430694e1..fe2e4b36cd0 100644 --- a/compiler/rustc_codegen_ssa/src/back/link.rs +++ b/compiler/rustc_codegen_ssa/src/back/link.rs @@ -253,7 +253,7 @@ pub fn each_linked_rlib( }; for &cnum in crates { match fmts.get(cnum.as_usize() - 1) { - Some(&Linkage::NotLinked | &Linkage::IncludedFromDylib) => continue, + Some(&Linkage::NotLinked | &Linkage::Dynamic | &Linkage::IncludedFromDylib) => continue, Some(_) => {} None => return Err(errors::LinkRlibError::MissingFormat), } diff --git a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs new file mode 100644 index 00000000000..c7f2e1966c1 --- /dev/null +++ b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs @@ -0,0 +1,688 @@ +use rustc_ast::{ast, MetaItemKind, NestedMetaItem}; +use rustc_attr::{list_contains_name, InlineAttr, InstructionSetAttr, OptimizeAttr}; +use rustc_errors::struct_span_err; +use rustc_hir as hir; +use rustc_hir::def_id::{DefId, LocalDefId, LOCAL_CRATE}; +use rustc_hir::{lang_items, weak_lang_items::WEAK_LANG_ITEMS, LangItem}; +use rustc_middle::middle::codegen_fn_attrs::{CodegenFnAttrFlags, CodegenFnAttrs}; +use rustc_middle::mir::mono::Linkage; +use rustc_middle::ty::query::Providers; +use rustc_middle::ty::{self as ty, DefIdTree, TyCtxt}; +use rustc_session::{lint, parse::feature_err}; +use rustc_span::{sym, Span}; +use rustc_target::spec::{abi, SanitizerSet}; + +use crate::target_features::from_target_feature; +use crate::{errors::ExpectedUsedSymbol, target_features::check_target_feature_trait_unsafe}; + +fn linkage_by_name(tcx: TyCtxt<'_>, def_id: LocalDefId, name: &str) -> Linkage { + use rustc_middle::mir::mono::Linkage::*; + + // Use the names from src/llvm/docs/LangRef.rst here. Most types are only + // applicable to variable declarations and may not really make sense for + // Rust code in the first place but allow them anyway and trust that the + // user knows what they're doing. Who knows, unanticipated use cases may pop + // up in the future. + // + // ghost, dllimport, dllexport and linkonce_odr_autohide are not supported + // and don't have to be, LLVM treats them as no-ops. + match name { + "appending" => Appending, + "available_externally" => AvailableExternally, + "common" => Common, + "extern_weak" => ExternalWeak, + "external" => External, + "internal" => Internal, + "linkonce" => LinkOnceAny, + "linkonce_odr" => LinkOnceODR, + "private" => Private, + "weak" => WeakAny, + "weak_odr" => WeakODR, + _ => tcx.sess.span_fatal(tcx.def_span(def_id), "invalid linkage specified"), + } +} + +fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: DefId) -> CodegenFnAttrs { + if cfg!(debug_assertions) { + let def_kind = tcx.def_kind(did); + assert!( + def_kind.has_codegen_attrs(), + "unexpected `def_kind` in `codegen_fn_attrs`: {def_kind:?}", + ); + } + + let did = did.expect_local(); + let attrs = tcx.hir().attrs(tcx.hir().local_def_id_to_hir_id(did)); + let mut codegen_fn_attrs = CodegenFnAttrs::new(); + if tcx.should_inherit_track_caller(did) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::TRACK_CALLER; + } + + let supported_target_features = tcx.supported_target_features(LOCAL_CRATE); + + let mut inline_span = None; + let mut link_ordinal_span = None; + let mut no_sanitize_span = None; + for attr in attrs.iter() { + if attr.has_name(sym::cold) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::COLD; + } else if attr.has_name(sym::rustc_allocator) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::ALLOCATOR; + } else if attr.has_name(sym::ffi_returns_twice) { + if tcx.is_foreign_item(did) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::FFI_RETURNS_TWICE; + } else { + // `#[ffi_returns_twice]` is only allowed `extern fn`s. + struct_span_err!( + tcx.sess, + attr.span, + E0724, + "`#[ffi_returns_twice]` may only be used on foreign functions" + ) + .emit(); + } + } else if attr.has_name(sym::ffi_pure) { + if tcx.is_foreign_item(did) { + if attrs.iter().any(|a| a.has_name(sym::ffi_const)) { + // `#[ffi_const]` functions cannot be `#[ffi_pure]` + struct_span_err!( + tcx.sess, + attr.span, + E0757, + "`#[ffi_const]` function cannot be `#[ffi_pure]`" + ) + .emit(); + } else { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::FFI_PURE; + } + } else { + // `#[ffi_pure]` is only allowed on foreign functions + struct_span_err!( + tcx.sess, + attr.span, + E0755, + "`#[ffi_pure]` may only be used on foreign functions" + ) + .emit(); + } + } else if attr.has_name(sym::ffi_const) { + if tcx.is_foreign_item(did) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::FFI_CONST; + } else { + // `#[ffi_const]` is only allowed on foreign functions + struct_span_err!( + tcx.sess, + attr.span, + E0756, + "`#[ffi_const]` may only be used on foreign functions" + ) + .emit(); + } + } else if attr.has_name(sym::rustc_nounwind) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::NEVER_UNWIND; + } else if attr.has_name(sym::rustc_reallocator) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::REALLOCATOR; + } else if attr.has_name(sym::rustc_deallocator) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::DEALLOCATOR; + } else if attr.has_name(sym::rustc_allocator_zeroed) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::ALLOCATOR_ZEROED; + } else if attr.has_name(sym::naked) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::NAKED; + } else if attr.has_name(sym::no_mangle) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::NO_MANGLE; + } else if attr.has_name(sym::no_coverage) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::NO_COVERAGE; + } else if attr.has_name(sym::rustc_std_internal_symbol) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::RUSTC_STD_INTERNAL_SYMBOL; + } else if attr.has_name(sym::used) { + let inner = attr.meta_item_list(); + match inner.as_deref() { + Some([item]) if item.has_name(sym::linker) => { + if !tcx.features().used_with_arg { + feature_err( + &tcx.sess.parse_sess, + sym::used_with_arg, + attr.span, + "`#[used(linker)]` is currently unstable", + ) + .emit(); + } + codegen_fn_attrs.flags |= CodegenFnAttrFlags::USED_LINKER; + } + Some([item]) if item.has_name(sym::compiler) => { + if !tcx.features().used_with_arg { + feature_err( + &tcx.sess.parse_sess, + sym::used_with_arg, + attr.span, + "`#[used(compiler)]` is currently unstable", + ) + .emit(); + } + codegen_fn_attrs.flags |= CodegenFnAttrFlags::USED; + } + Some(_) => { + tcx.sess.emit_err(ExpectedUsedSymbol { span: attr.span }); + } + None => { + // Unfortunately, unconditionally using `llvm.used` causes + // issues in handling `.init_array` with the gold linker, + // but using `llvm.compiler.used` caused a nontrival amount + // of unintentional ecosystem breakage -- particularly on + // Mach-O targets. + // + // As a result, we emit `llvm.compiler.used` only on ELF + // targets. This is somewhat ad-hoc, but actually follows + // our pre-LLVM 13 behavior (prior to the ecosystem + // breakage), and seems to match `clang`'s behavior as well + // (both before and after LLVM 13), possibly because they + // have similar compatibility concerns to us. See + // https://github.com/rust-lang/rust/issues/47384#issuecomment-1019080146 + // and following comments for some discussion of this, as + // well as the comments in `rustc_codegen_llvm` where these + // flags are handled. + // + // Anyway, to be clear: this is still up in the air + // somewhat, and is subject to change in the future (which + // is a good thing, because this would ideally be a bit + // more firmed up). + let is_like_elf = !(tcx.sess.target.is_like_osx + || tcx.sess.target.is_like_windows + || tcx.sess.target.is_like_wasm); + codegen_fn_attrs.flags |= if is_like_elf { + CodegenFnAttrFlags::USED + } else { + CodegenFnAttrFlags::USED_LINKER + }; + } + } + } else if attr.has_name(sym::cmse_nonsecure_entry) { + if !matches!(tcx.fn_sig(did).abi(), abi::Abi::C { .. }) { + struct_span_err!( + tcx.sess, + attr.span, + E0776, + "`#[cmse_nonsecure_entry]` requires C ABI" + ) + .emit(); + } + if !tcx.sess.target.llvm_target.contains("thumbv8m") { + struct_span_err!(tcx.sess, attr.span, E0775, "`#[cmse_nonsecure_entry]` is only valid for targets with the TrustZone-M extension") + .emit(); + } + codegen_fn_attrs.flags |= CodegenFnAttrFlags::CMSE_NONSECURE_ENTRY; + } else if attr.has_name(sym::thread_local) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::THREAD_LOCAL; + } else if attr.has_name(sym::track_caller) { + if !tcx.is_closure(did.to_def_id()) && tcx.fn_sig(did).abi() != abi::Abi::Rust { + struct_span_err!(tcx.sess, attr.span, E0737, "`#[track_caller]` requires Rust ABI") + .emit(); + } + if tcx.is_closure(did.to_def_id()) && !tcx.features().closure_track_caller { + feature_err( + &tcx.sess.parse_sess, + sym::closure_track_caller, + attr.span, + "`#[track_caller]` on closures is currently unstable", + ) + .emit(); + } + codegen_fn_attrs.flags |= CodegenFnAttrFlags::TRACK_CALLER; + } else if attr.has_name(sym::export_name) { + if let Some(s) = attr.value_str() { + if s.as_str().contains('\0') { + // `#[export_name = ...]` will be converted to a null-terminated string, + // so it may not contain any null characters. + struct_span_err!( + tcx.sess, + attr.span, + E0648, + "`export_name` may not contain null characters" + ) + .emit(); + } + codegen_fn_attrs.export_name = Some(s); + } + } else if attr.has_name(sym::target_feature) { + if !tcx.is_closure(did.to_def_id()) + && tcx.fn_sig(did).unsafety() == hir::Unsafety::Normal + { + if tcx.sess.target.is_like_wasm || tcx.sess.opts.actually_rustdoc { + // The `#[target_feature]` attribute is allowed on + // WebAssembly targets on all functions, including safe + // ones. Other targets require that `#[target_feature]` is + // only applied to unsafe functions (pending the + // `target_feature_11` feature) because on most targets + // execution of instructions that are not supported is + // considered undefined behavior. For WebAssembly which is a + // 100% safe target at execution time it's not possible to + // execute undefined instructions, and even if a future + // feature was added in some form for this it would be a + // deterministic trap. There is no undefined behavior when + // executing WebAssembly so `#[target_feature]` is allowed + // on safe functions (but again, only for WebAssembly) + // + // Note that this is also allowed if `actually_rustdoc` so + // if a target is documenting some wasm-specific code then + // it's not spuriously denied. + } else if !tcx.features().target_feature_11 { + let mut err = feature_err( + &tcx.sess.parse_sess, + sym::target_feature_11, + attr.span, + "`#[target_feature(..)]` can only be applied to `unsafe` functions", + ); + err.span_label(tcx.def_span(did), "not an `unsafe` function"); + err.emit(); + } else { + check_target_feature_trait_unsafe(tcx, did, attr.span); + } + } + from_target_feature( + tcx, + attr, + supported_target_features, + &mut codegen_fn_attrs.target_features, + ); + } else if attr.has_name(sym::linkage) { + if let Some(val) = attr.value_str() { + let linkage = Some(linkage_by_name(tcx, did, val.as_str())); + if tcx.is_foreign_item(did) { + codegen_fn_attrs.import_linkage = linkage; + } else { + codegen_fn_attrs.linkage = linkage; + } + } + } else if attr.has_name(sym::link_section) { + if let Some(val) = attr.value_str() { + if val.as_str().bytes().any(|b| b == 0) { + let msg = format!( + "illegal null byte in link_section \ + value: `{}`", + &val + ); + tcx.sess.span_err(attr.span, &msg); + } else { + codegen_fn_attrs.link_section = Some(val); + } + } + } else if attr.has_name(sym::link_name) { + codegen_fn_attrs.link_name = attr.value_str(); + } else if attr.has_name(sym::link_ordinal) { + link_ordinal_span = Some(attr.span); + if let ordinal @ Some(_) = check_link_ordinal(tcx, attr) { + codegen_fn_attrs.link_ordinal = ordinal; + } + } else if attr.has_name(sym::no_sanitize) { + no_sanitize_span = Some(attr.span); + if let Some(list) = attr.meta_item_list() { + for item in list.iter() { + if item.has_name(sym::address) { + codegen_fn_attrs.no_sanitize |= SanitizerSet::ADDRESS; + } else if item.has_name(sym::cfi) { + codegen_fn_attrs.no_sanitize |= SanitizerSet::CFI; + } else if item.has_name(sym::kcfi) { + codegen_fn_attrs.no_sanitize |= SanitizerSet::KCFI; + } else if item.has_name(sym::memory) { + codegen_fn_attrs.no_sanitize |= SanitizerSet::MEMORY; + } else if item.has_name(sym::memtag) { + codegen_fn_attrs.no_sanitize |= SanitizerSet::MEMTAG; + } else if item.has_name(sym::shadow_call_stack) { + codegen_fn_attrs.no_sanitize |= SanitizerSet::SHADOWCALLSTACK; + } else if item.has_name(sym::thread) { + codegen_fn_attrs.no_sanitize |= SanitizerSet::THREAD; + } else if item.has_name(sym::hwaddress) { + codegen_fn_attrs.no_sanitize |= SanitizerSet::HWADDRESS; + } else { + tcx.sess + .struct_span_err(item.span(), "invalid argument for `no_sanitize`") + .note("expected one of: `address`, `cfi`, `hwaddress`, `kcfi`, `memory`, `memtag`, `shadow-call-stack`, or `thread`") + .emit(); + } + } + } + } else if attr.has_name(sym::instruction_set) { + codegen_fn_attrs.instruction_set = match attr.meta_kind() { + Some(MetaItemKind::List(ref items)) => match items.as_slice() { + [NestedMetaItem::MetaItem(set)] => { + let segments = + set.path.segments.iter().map(|x| x.ident.name).collect::<Vec<_>>(); + match segments.as_slice() { + [sym::arm, sym::a32] | [sym::arm, sym::t32] => { + if !tcx.sess.target.has_thumb_interworking { + struct_span_err!( + tcx.sess.diagnostic(), + attr.span, + E0779, + "target does not support `#[instruction_set]`" + ) + .emit(); + None + } else if segments[1] == sym::a32 { + Some(InstructionSetAttr::ArmA32) + } else if segments[1] == sym::t32 { + Some(InstructionSetAttr::ArmT32) + } else { + unreachable!() + } + } + _ => { + struct_span_err!( + tcx.sess.diagnostic(), + attr.span, + E0779, + "invalid instruction set specified", + ) + .emit(); + None + } + } + } + [] => { + struct_span_err!( + tcx.sess.diagnostic(), + attr.span, + E0778, + "`#[instruction_set]` requires an argument" + ) + .emit(); + None + } + _ => { + struct_span_err!( + tcx.sess.diagnostic(), + attr.span, + E0779, + "cannot specify more than one instruction set" + ) + .emit(); + None + } + }, + _ => { + struct_span_err!( + tcx.sess.diagnostic(), + attr.span, + E0778, + "must specify an instruction set" + ) + .emit(); + None + } + }; + } else if attr.has_name(sym::repr) { + codegen_fn_attrs.alignment = match attr.meta_item_list() { + Some(items) => match items.as_slice() { + [item] => match item.name_value_literal() { + Some((sym::align, literal)) => { + let alignment = rustc_attr::parse_alignment(&literal.kind); + + match alignment { + Ok(align) => Some(align), + Err(msg) => { + struct_span_err!( + tcx.sess.diagnostic(), + attr.span, + E0589, + "invalid `repr(align)` attribute: {}", + msg + ) + .emit(); + + None + } + } + } + _ => None, + }, + [] => None, + _ => None, + }, + None => None, + }; + } + } + + codegen_fn_attrs.inline = attrs.iter().fold(InlineAttr::None, |ia, attr| { + if !attr.has_name(sym::inline) { + return ia; + } + match attr.meta_kind() { + Some(MetaItemKind::Word) => InlineAttr::Hint, + Some(MetaItemKind::List(ref items)) => { + inline_span = Some(attr.span); + if items.len() != 1 { + struct_span_err!( + tcx.sess.diagnostic(), + attr.span, + E0534, + "expected one argument" + ) + .emit(); + InlineAttr::None + } else if list_contains_name(&items, sym::always) { + InlineAttr::Always + } else if list_contains_name(&items, sym::never) { + InlineAttr::Never + } else { + struct_span_err!( + tcx.sess.diagnostic(), + items[0].span(), + E0535, + "invalid argument" + ) + .help("valid inline arguments are `always` and `never`") + .emit(); + + InlineAttr::None + } + } + Some(MetaItemKind::NameValue(_)) => ia, + None => ia, + } + }); + + codegen_fn_attrs.optimize = attrs.iter().fold(OptimizeAttr::None, |ia, attr| { + if !attr.has_name(sym::optimize) { + return ia; + } + let err = |sp, s| struct_span_err!(tcx.sess.diagnostic(), sp, E0722, "{}", s).emit(); + match attr.meta_kind() { + Some(MetaItemKind::Word) => { + err(attr.span, "expected one argument"); + ia + } + Some(MetaItemKind::List(ref items)) => { + inline_span = Some(attr.span); + if items.len() != 1 { + err(attr.span, "expected one argument"); + OptimizeAttr::None + } else if list_contains_name(&items, sym::size) { + OptimizeAttr::Size + } else if list_contains_name(&items, sym::speed) { + OptimizeAttr::Speed + } else { + err(items[0].span(), "invalid argument"); + OptimizeAttr::None + } + } + Some(MetaItemKind::NameValue(_)) => ia, + None => ia, + } + }); + + // #73631: closures inherit `#[target_feature]` annotations + if tcx.features().target_feature_11 && tcx.is_closure(did.to_def_id()) { + let owner_id = tcx.parent(did.to_def_id()); + if tcx.def_kind(owner_id).has_codegen_attrs() { + codegen_fn_attrs + .target_features + .extend(tcx.codegen_fn_attrs(owner_id).target_features.iter().copied()); + } + } + + // If a function uses #[target_feature] it can't be inlined into general + // purpose functions as they wouldn't have the right target features + // enabled. For that reason we also forbid #[inline(always)] as it can't be + // respected. + if !codegen_fn_attrs.target_features.is_empty() { + if codegen_fn_attrs.inline == InlineAttr::Always { + if let Some(span) = inline_span { + tcx.sess.span_err( + span, + "cannot use `#[inline(always)]` with \ + `#[target_feature]`", + ); + } + } + } + + if !codegen_fn_attrs.no_sanitize.is_empty() { + if codegen_fn_attrs.inline == InlineAttr::Always { + if let (Some(no_sanitize_span), Some(inline_span)) = (no_sanitize_span, inline_span) { + let hir_id = tcx.hir().local_def_id_to_hir_id(did); + tcx.struct_span_lint_hir( + lint::builtin::INLINE_NO_SANITIZE, + hir_id, + no_sanitize_span, + "`no_sanitize` will have no effect after inlining", + |lint| lint.span_note(inline_span, "inlining requested here"), + ) + } + } + } + + if codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::NAKED) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::NO_COVERAGE; + codegen_fn_attrs.inline = InlineAttr::Never; + } + + // Weak lang items have the same semantics as "std internal" symbols in the + // sense that they're preserved through all our LTO passes and only + // strippable by the linker. + // + // Additionally weak lang items have predetermined symbol names. + if WEAK_LANG_ITEMS.iter().any(|&l| tcx.lang_items().get(l) == Some(did.to_def_id())) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::RUSTC_STD_INTERNAL_SYMBOL; + } + if let Some((name, _)) = lang_items::extract(attrs) + && let Some(lang_item) = LangItem::from_name(name) + && let Some(link_name) = lang_item.link_name() + { + codegen_fn_attrs.export_name = Some(link_name); + codegen_fn_attrs.link_name = Some(link_name); + } + check_link_name_xor_ordinal(tcx, &codegen_fn_attrs, link_ordinal_span); + + // Internal symbols to the standard library all have no_mangle semantics in + // that they have defined symbol names present in the function name. This + // also applies to weak symbols where they all have known symbol names. + if codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::RUSTC_STD_INTERNAL_SYMBOL) { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::NO_MANGLE; + } + + // Any linkage to LLVM intrinsics for now forcibly marks them all as never + // unwinds since LLVM sometimes can't handle codegen which `invoke`s + // intrinsic functions. + if let Some(name) = &codegen_fn_attrs.link_name { + if name.as_str().starts_with("llvm.") { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::NEVER_UNWIND; + } + } + + codegen_fn_attrs +} + +/// Checks if the provided DefId is a method in a trait impl for a trait which has track_caller +/// applied to the method prototype. +fn should_inherit_track_caller(tcx: TyCtxt<'_>, def_id: DefId) -> bool { + if let Some(impl_item) = tcx.opt_associated_item(def_id) + && let ty::AssocItemContainer::ImplContainer = impl_item.container + && let Some(trait_item) = impl_item.trait_item_def_id + { + return tcx + .codegen_fn_attrs(trait_item) + .flags + .intersects(CodegenFnAttrFlags::TRACK_CALLER); + } + + false +} + +fn check_link_ordinal(tcx: TyCtxt<'_>, attr: &ast::Attribute) -> Option<u16> { + use rustc_ast::{LitIntType, LitKind, MetaItemLit}; + if !tcx.features().raw_dylib && tcx.sess.target.arch == "x86" { + feature_err( + &tcx.sess.parse_sess, + sym::raw_dylib, + attr.span, + "`#[link_ordinal]` is unstable on x86", + ) + .emit(); + } + let meta_item_list = attr.meta_item_list(); + let meta_item_list = meta_item_list.as_deref(); + let sole_meta_list = match meta_item_list { + Some([item]) => item.lit(), + Some(_) => { + tcx.sess + .struct_span_err(attr.span, "incorrect number of arguments to `#[link_ordinal]`") + .note("the attribute requires exactly one argument") + .emit(); + return None; + } + _ => None, + }; + if let Some(MetaItemLit { kind: LitKind::Int(ordinal, LitIntType::Unsuffixed), .. }) = + sole_meta_list + { + // According to the table at https://docs.microsoft.com/en-us/windows/win32/debug/pe-format#import-header, + // the ordinal must fit into 16 bits. Similarly, the Ordinal field in COFFShortExport (defined + // in llvm/include/llvm/Object/COFFImportFile.h), which we use to communicate import information + // to LLVM for `#[link(kind = "raw-dylib"_])`, is also defined to be uint16_t. + // + // FIXME: should we allow an ordinal of 0? The MSVC toolchain has inconsistent support for this: + // both LINK.EXE and LIB.EXE signal errors and abort when given a .DEF file that specifies + // a zero ordinal. However, llvm-dlltool is perfectly happy to generate an import library + // for such a .DEF file, and MSVC's LINK.EXE is also perfectly happy to consume an import + // library produced by LLVM with an ordinal of 0, and it generates an .EXE. (I don't know yet + // if the resulting EXE runs, as I haven't yet built the necessary DLL -- see earlier comment + // about LINK.EXE failing.) + if *ordinal <= u16::MAX as u128 { + Some(*ordinal as u16) + } else { + let msg = format!("ordinal value in `link_ordinal` is too large: `{}`", &ordinal); + tcx.sess + .struct_span_err(attr.span, &msg) + .note("the value may not exceed `u16::MAX`") + .emit(); + None + } + } else { + tcx.sess + .struct_span_err(attr.span, "illegal ordinal format in `link_ordinal`") + .note("an unsuffixed integer value, e.g., `1`, is expected") + .emit(); + None + } +} + +fn check_link_name_xor_ordinal( + tcx: TyCtxt<'_>, + codegen_fn_attrs: &CodegenFnAttrs, + inline_span: Option<Span>, +) { + if codegen_fn_attrs.link_name.is_none() || codegen_fn_attrs.link_ordinal.is_none() { + return; + } + let msg = "cannot use `#[link_name]` with `#[link_ordinal]`"; + if let Some(span) = inline_span { + tcx.sess.span_err(span, msg); + } else { + tcx.sess.err(msg); + } +} + +pub fn provide(providers: &mut Providers) { + *providers = Providers { codegen_fn_attrs, should_inherit_track_caller, ..*providers }; +} diff --git a/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs b/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs index b004fbf85a9..819c2678d6c 100644 --- a/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs +++ b/compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs @@ -235,7 +235,7 @@ fn push_debuginfo_type_name<'tcx>( let projection_bounds: SmallVec<[_; 4]> = trait_data .projection_bounds() .map(|bound| { - let ExistentialProjection { item_def_id, term, .. } = + let ExistentialProjection { def_id: item_def_id, term, .. } = tcx.erase_late_bound_regions(bound); // FIXME(associated_const_equality): allow for consts here (item_def_id, term.ty().unwrap()) @@ -411,9 +411,8 @@ fn push_debuginfo_type_name<'tcx>( ty::Error(_) | ty::Infer(_) | ty::Placeholder(..) - | ty::Projection(..) + | ty::Alias(..) | ty::Bound(..) - | ty::Opaque(..) | ty::GeneratorWitness(..) => { bug!( "debuginfo: Trying to create type name for \ diff --git a/compiler/rustc_codegen_ssa/src/errors.rs b/compiler/rustc_codegen_ssa/src/errors.rs index e3b6fbf1bc7..0620000201f 100644 --- a/compiler/rustc_codegen_ssa/src/errors.rs +++ b/compiler/rustc_codegen_ssa/src/errors.rs @@ -548,3 +548,10 @@ pub struct ArchiveBuildFailure { pub struct UnknownArchiveKind<'a> { pub kind: &'a str, } + +#[derive(Diagnostic)] +#[diag(codegen_ssa_expected_used_symbol)] +pub struct ExpectedUsedSymbol { + #[primary_span] + pub span: Span, +} diff --git a/compiler/rustc_codegen_ssa/src/lib.rs b/compiler/rustc_codegen_ssa/src/lib.rs index def6390f6a3..0e6596d4ba7 100644 --- a/compiler/rustc_codegen_ssa/src/lib.rs +++ b/compiler/rustc_codegen_ssa/src/lib.rs @@ -42,6 +42,7 @@ use std::path::{Path, PathBuf}; pub mod back; pub mod base; +pub mod codegen_attrs; pub mod common; pub mod coverageinfo; pub mod debuginfo; @@ -180,6 +181,7 @@ pub fn provide(providers: &mut Providers) { crate::back::symbol_export::provide(providers); crate::base::provide(providers); crate::target_features::provide(providers); + crate::codegen_attrs::provide(providers); } pub fn provide_extern(providers: &mut ExternProviders) { diff --git a/compiler/rustc_codegen_ssa/src/mir/block.rs b/compiler/rustc_codegen_ssa/src/mir/block.rs index 58dfd17fb36..3860138018b 100644 --- a/compiler/rustc_codegen_ssa/src/mir/block.rs +++ b/compiler/rustc_codegen_ssa/src/mir/block.rs @@ -1802,15 +1802,20 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { match (src.layout.abi, dst.layout.abi) { (abi::Abi::Scalar(src_scalar), abi::Abi::Scalar(dst_scalar)) => { // HACK(eddyb) LLVM doesn't like `bitcast`s between pointers and non-pointers. - if (src_scalar.primitive() == abi::Pointer) - == (dst_scalar.primitive() == abi::Pointer) - { + let src_is_ptr = src_scalar.primitive() == abi::Pointer; + let dst_is_ptr = dst_scalar.primitive() == abi::Pointer; + if src_is_ptr == dst_is_ptr { assert_eq!(src.layout.size, dst.layout.size); // NOTE(eddyb) the `from_immediate` and `to_immediate_scalar` // conversions allow handling `bool`s the same as `u8`s. let src = bx.from_immediate(src.immediate()); - let src_as_dst = bx.bitcast(src, bx.backend_type(dst.layout)); + // LLVM also doesn't like `bitcast`s between pointers in different address spaces. + let src_as_dst = if src_is_ptr { + bx.pointercast(src, bx.backend_type(dst.layout)) + } else { + bx.bitcast(src, bx.backend_type(dst.layout)) + }; Immediate(bx.to_immediate_scalar(src_as_dst, dst_scalar)).store(bx, dst); return; } diff --git a/compiler/rustc_codegen_ssa/src/target_features.rs b/compiler/rustc_codegen_ssa/src/target_features.rs index 301683e8e85..0dabe96b602 100644 --- a/compiler/rustc_codegen_ssa/src/target_features.rs +++ b/compiler/rustc_codegen_ssa/src/target_features.rs @@ -1,8 +1,19 @@ +use rustc_ast::ast; +use rustc_attr::InstructionSetAttr; +use rustc_data_structures::fx::FxHashMap; +use rustc_data_structures::fx::FxHashSet; +use rustc_errors::Applicability; +use rustc_hir as hir; +use rustc_hir::def_id::DefId; +use rustc_hir::def_id::LocalDefId; use rustc_hir::def_id::LOCAL_CRATE; use rustc_middle::ty::query::Providers; +use rustc_middle::ty::TyCtxt; +use rustc_session::parse::feature_err; use rustc_session::Session; use rustc_span::symbol::sym; use rustc_span::symbol::Symbol; +use rustc_span::Span; /// Features that control behaviour of rustc, rather than the codegen. pub const RUSTC_SPECIFIC_FEATURES: &[&str] = &["crt-static"]; @@ -322,15 +333,148 @@ pub fn tied_target_features(sess: &Session) -> &'static [&'static [&'static str] } } -pub(crate) fn provide(providers: &mut Providers) { - providers.supported_target_features = |tcx, cnum| { - assert_eq!(cnum, LOCAL_CRATE); - if tcx.sess.opts.actually_rustdoc { - // rustdoc needs to be able to document functions that use all the features, so - // whitelist them all - all_known_features().map(|(a, b)| (a.to_string(), b)).collect() - } else { - supported_target_features(tcx.sess).iter().map(|&(a, b)| (a.to_string(), b)).collect() - } +pub fn from_target_feature( + tcx: TyCtxt<'_>, + attr: &ast::Attribute, + supported_target_features: &FxHashMap<String, Option<Symbol>>, + target_features: &mut Vec<Symbol>, +) { + let Some(list) = attr.meta_item_list() else { return }; + let bad_item = |span| { + let msg = "malformed `target_feature` attribute input"; + let code = "enable = \"..\""; + tcx.sess + .struct_span_err(span, msg) + .span_suggestion(span, "must be of the form", code, Applicability::HasPlaceholders) + .emit(); }; + let rust_features = tcx.features(); + for item in list { + // Only `enable = ...` is accepted in the meta-item list. + if !item.has_name(sym::enable) { + bad_item(item.span()); + continue; + } + + // Must be of the form `enable = "..."` (a string). + let Some(value) = item.value_str() else { + bad_item(item.span()); + continue; + }; + + // We allow comma separation to enable multiple features. + target_features.extend(value.as_str().split(',').filter_map(|feature| { + let Some(feature_gate) = supported_target_features.get(feature) else { + let msg = + format!("the feature named `{}` is not valid for this target", feature); + let mut err = tcx.sess.struct_span_err(item.span(), &msg); + err.span_label( + item.span(), + format!("`{}` is not valid for this target", feature), + ); + if let Some(stripped) = feature.strip_prefix('+') { + let valid = supported_target_features.contains_key(stripped); + if valid { + err.help("consider removing the leading `+` in the feature name"); + } + } + err.emit(); + return None; + }; + + // Only allow features whose feature gates have been enabled. + let allowed = match feature_gate.as_ref().copied() { + Some(sym::arm_target_feature) => rust_features.arm_target_feature, + Some(sym::hexagon_target_feature) => rust_features.hexagon_target_feature, + Some(sym::powerpc_target_feature) => rust_features.powerpc_target_feature, + Some(sym::mips_target_feature) => rust_features.mips_target_feature, + Some(sym::riscv_target_feature) => rust_features.riscv_target_feature, + Some(sym::avx512_target_feature) => rust_features.avx512_target_feature, + Some(sym::sse4a_target_feature) => rust_features.sse4a_target_feature, + Some(sym::tbm_target_feature) => rust_features.tbm_target_feature, + Some(sym::wasm_target_feature) => rust_features.wasm_target_feature, + Some(sym::cmpxchg16b_target_feature) => rust_features.cmpxchg16b_target_feature, + Some(sym::movbe_target_feature) => rust_features.movbe_target_feature, + Some(sym::rtm_target_feature) => rust_features.rtm_target_feature, + Some(sym::f16c_target_feature) => rust_features.f16c_target_feature, + Some(sym::ermsb_target_feature) => rust_features.ermsb_target_feature, + Some(sym::bpf_target_feature) => rust_features.bpf_target_feature, + Some(sym::aarch64_ver_target_feature) => rust_features.aarch64_ver_target_feature, + Some(name) => bug!("unknown target feature gate {}", name), + None => true, + }; + if !allowed { + feature_err( + &tcx.sess.parse_sess, + feature_gate.unwrap(), + item.span(), + &format!("the target feature `{}` is currently unstable", feature), + ) + .emit(); + } + Some(Symbol::intern(feature)) + })); + } +} + +/// Computes the set of target features used in a function for the purposes of +/// inline assembly. +fn asm_target_features<'tcx>(tcx: TyCtxt<'tcx>, did: DefId) -> &'tcx FxHashSet<Symbol> { + let mut target_features = tcx.sess.unstable_target_features.clone(); + if tcx.def_kind(did).has_codegen_attrs() { + let attrs = tcx.codegen_fn_attrs(did); + target_features.extend(&attrs.target_features); + match attrs.instruction_set { + None => {} + Some(InstructionSetAttr::ArmA32) => { + target_features.remove(&sym::thumb_mode); + } + Some(InstructionSetAttr::ArmT32) => { + target_features.insert(sym::thumb_mode); + } + } + } + + tcx.arena.alloc(target_features) +} + +/// Checks the function annotated with `#[target_feature]` is not a safe +/// trait method implementation, reporting an error if it is. +pub fn check_target_feature_trait_unsafe(tcx: TyCtxt<'_>, id: LocalDefId, attr_span: Span) { + let hir_id = tcx.hir().local_def_id_to_hir_id(id); + let node = tcx.hir().get(hir_id); + if let hir::Node::ImplItem(hir::ImplItem { kind: hir::ImplItemKind::Fn(..), .. }) = node { + let parent_id = tcx.hir().get_parent_item(hir_id); + let parent_item = tcx.hir().expect_item(parent_id.def_id); + if let hir::ItemKind::Impl(hir::Impl { of_trait: Some(_), .. }) = parent_item.kind { + tcx.sess + .struct_span_err( + attr_span, + "`#[target_feature(..)]` cannot be applied to safe trait method", + ) + .span_label(attr_span, "cannot be applied to safe trait method") + .span_label(tcx.def_span(id), "not an `unsafe` function") + .emit(); + } + } +} + +pub(crate) fn provide(providers: &mut Providers) { + *providers = Providers { + supported_target_features: |tcx, cnum| { + assert_eq!(cnum, LOCAL_CRATE); + if tcx.sess.opts.actually_rustdoc { + // rustdoc needs to be able to document functions that use all the features, so + // whitelist them all + all_known_features().map(|(a, b)| (a.to_string(), b)).collect() + } else { + supported_target_features(tcx.sess) + .iter() + .map(|&(a, b)| (a.to_string(), b)) + .collect() + } + }, + asm_target_features, + ..*providers + } } diff --git a/compiler/rustc_const_eval/src/const_eval/error.rs b/compiler/rustc_const_eval/src/const_eval/error.rs index c60d6e4fed9..13472cc2bfa 100644 --- a/compiler/rustc_const_eval/src/const_eval/error.rs +++ b/compiler/rustc_const_eval/src/const_eval/error.rs @@ -86,6 +86,59 @@ impl<'tcx> ConstEvalErr<'tcx> { self.report_decorated(tcx, message, |_| {}) } + #[instrument(level = "trace", skip(self, decorate))] + pub(super) fn decorate(&self, err: &mut Diagnostic, decorate: impl FnOnce(&mut Diagnostic)) { + trace!("reporting const eval failure at {:?}", self.span); + // Add some more context for select error types. + match self.error { + InterpError::Unsupported( + UnsupportedOpInfo::ReadPointerAsBytes + | UnsupportedOpInfo::PartialPointerOverwrite(_) + | UnsupportedOpInfo::PartialPointerCopy(_), + ) => { + err.help("this code performed an operation that depends on the underlying bytes representing a pointer"); + err.help("the absolute address of a pointer is not known at compile-time, so such operations are not supported"); + } + _ => {} + } + // Add spans for the stacktrace. Don't print a single-line backtrace though. + if self.stacktrace.len() > 1 { + // Helper closure to print duplicated lines. + let mut flush_last_line = |last_frame, times| { + if let Some((line, span)) = last_frame { + err.span_note(span, &line); + // Don't print [... additional calls ...] if the number of lines is small + if times < 3 { + for _ in 0..times { + err.span_note(span, &line); + } + } else { + err.span_note( + span, + format!("[... {} additional calls {} ...]", times, &line), + ); + } + } + }; + + let mut last_frame = None; + let mut times = 0; + for frame_info in &self.stacktrace { + let frame = (frame_info.to_string(), frame_info.span); + if last_frame.as_ref() == Some(&frame) { + times += 1; + } else { + flush_last_line(last_frame, times); + last_frame = Some(frame); + times = 0; + } + } + flush_last_line(last_frame, times); + } + // Let the caller attach any additional information it wants. + decorate(err); + } + /// Create a diagnostic for this const eval error. /// /// Sets the message passed in via `message` and adds span labels with detailed error @@ -101,88 +154,30 @@ impl<'tcx> ConstEvalErr<'tcx> { message: &str, decorate: impl FnOnce(&mut Diagnostic), ) -> ErrorHandled { - let finish = |err: &mut Diagnostic, span_msg: Option<String>| { - trace!("reporting const eval failure at {:?}", self.span); - if let Some(span_msg) = span_msg { - err.span_label(self.span, span_msg); - } - // Add some more context for select error types. - match self.error { - InterpError::Unsupported( - UnsupportedOpInfo::ReadPointerAsBytes - | UnsupportedOpInfo::PartialPointerOverwrite(_) - | UnsupportedOpInfo::PartialPointerCopy(_), - ) => { - err.help("this code performed an operation that depends on the underlying bytes representing a pointer"); - err.help("the absolute address of a pointer is not known at compile-time, so such operations are not supported"); - } - _ => {} - } - // Add spans for the stacktrace. Don't print a single-line backtrace though. - if self.stacktrace.len() > 1 { - // Helper closure to print duplicated lines. - let mut flush_last_line = |last_frame, times| { - if let Some((line, span)) = last_frame { - err.span_note(span, &line); - // Don't print [... additional calls ...] if the number of lines is small - if times < 3 { - for _ in 0..times { - err.span_note(span, &line); - } - } else { - err.span_note( - span, - format!("[... {} additional calls {} ...]", times, &line), - ); - } - } - }; - - let mut last_frame = None; - let mut times = 0; - for frame_info in &self.stacktrace { - let frame = (frame_info.to_string(), frame_info.span); - if last_frame.as_ref() == Some(&frame) { - times += 1; - } else { - flush_last_line(last_frame, times); - last_frame = Some(frame); - times = 0; - } - } - flush_last_line(last_frame, times); - } - // Let the caller attach any additional information it wants. - decorate(err); - }; - debug!("self.error: {:?}", self.error); // Special handling for certain errors match &self.error { // Don't emit a new diagnostic for these errors err_inval!(Layout(LayoutError::Unknown(_))) | err_inval!(TooGeneric) => { - return ErrorHandled::TooGeneric; - } - err_inval!(AlreadyReported(error_reported)) => { - return ErrorHandled::Reported(*error_reported); + ErrorHandled::TooGeneric } + err_inval!(AlreadyReported(error_reported)) => ErrorHandled::Reported(*error_reported), err_inval!(Layout(LayoutError::SizeOverflow(_))) => { // We must *always* hard error on these, even if the caller wants just a lint. // The `message` makes little sense here, this is a more serious error than the // caller thinks anyway. // See <https://github.com/rust-lang/rust/pull/63152>. let mut err = struct_error(tcx, &self.error.to_string()); - finish(&mut err, None); - return ErrorHandled::Reported(err.emit()); + self.decorate(&mut err, decorate); + ErrorHandled::Reported(err.emit()) } - _ => {} - }; - - let err_msg = self.error.to_string(); - - // Report as hard error. - let mut err = struct_error(tcx, message); - finish(&mut err, Some(err_msg)); - ErrorHandled::Reported(err.emit()) + _ => { + // Report as hard error. + let mut err = struct_error(tcx, message); + err.span_label(self.span, self.error.to_string()); + self.decorate(&mut err, decorate); + ErrorHandled::Reported(err.emit()) + } + } } } diff --git a/compiler/rustc_const_eval/src/const_eval/eval_queries.rs b/compiler/rustc_const_eval/src/const_eval/eval_queries.rs index 319f2b2c25e..18e01567ca3 100644 --- a/compiler/rustc_const_eval/src/const_eval/eval_queries.rs +++ b/compiler/rustc_const_eval/src/const_eval/eval_queries.rs @@ -1,3 +1,4 @@ +use crate::const_eval::CheckAlignment; use std::borrow::Cow; use either::{Left, Right}; @@ -76,7 +77,7 @@ fn eval_body_using_ecx<'mir, 'tcx>( None => InternKind::Constant, } }; - ecx.machine.check_alignment = false; // interning doesn't need to respect alignment + ecx.machine.check_alignment = CheckAlignment::No; // interning doesn't need to respect alignment intern_const_alloc_recursive(ecx, intern_kind, &ret)?; // we leave alignment checks off, since this `ecx` will not be used for further evaluation anyway @@ -102,11 +103,7 @@ pub(super) fn mk_eval_cx<'mir, 'tcx>( tcx, root_span, param_env, - CompileTimeInterpreter::new( - tcx.const_eval_limit(), - can_access_statics, - /*check_alignment:*/ false, - ), + CompileTimeInterpreter::new(tcx.const_eval_limit(), can_access_statics, CheckAlignment::No), ) } @@ -311,7 +308,11 @@ pub fn eval_to_allocation_raw_provider<'tcx>( CompileTimeInterpreter::new( tcx.const_eval_limit(), /*can_access_statics:*/ is_static, - /*check_alignment:*/ tcx.sess.opts.unstable_opts.extra_const_ub_checks, + if tcx.sess.opts.unstable_opts.extra_const_ub_checks { + CheckAlignment::Error + } else { + CheckAlignment::FutureIncompat + }, ), ); diff --git a/compiler/rustc_const_eval/src/const_eval/machine.rs b/compiler/rustc_const_eval/src/const_eval/machine.rs index 3dfded2d930..e006a62feea 100644 --- a/compiler/rustc_const_eval/src/const_eval/machine.rs +++ b/compiler/rustc_const_eval/src/const_eval/machine.rs @@ -1,9 +1,10 @@ use rustc_hir::def::DefKind; -use rustc_hir::LangItem; +use rustc_hir::{LangItem, CRATE_HIR_ID}; use rustc_middle::mir; use rustc_middle::mir::interpret::PointerArithmetic; use rustc_middle::ty::layout::FnAbiOf; use rustc_middle::ty::{self, Ty, TyCtxt}; +use rustc_session::lint::builtin::INVALID_ALIGNMENT; use std::borrow::Borrow; use std::hash::Hash; use std::ops::ControlFlow; @@ -47,14 +48,34 @@ pub struct CompileTimeInterpreter<'mir, 'tcx> { pub(super) can_access_statics: bool, /// Whether to check alignment during evaluation. - pub(super) check_alignment: bool, + pub(super) check_alignment: CheckAlignment, +} + +#[derive(Copy, Clone)] +pub enum CheckAlignment { + /// Ignore alignment when following relocations. + /// This is mainly used in interning. + No, + /// Hard error when dereferencing a misaligned pointer. + Error, + /// Emit a future incompat lint when dereferencing a misaligned pointer. + FutureIncompat, +} + +impl CheckAlignment { + pub fn should_check(&self) -> bool { + match self { + CheckAlignment::No => false, + CheckAlignment::Error | CheckAlignment::FutureIncompat => true, + } + } } impl<'mir, 'tcx> CompileTimeInterpreter<'mir, 'tcx> { pub(crate) fn new( const_eval_limit: Limit, can_access_statics: bool, - check_alignment: bool, + check_alignment: CheckAlignment, ) -> Self { CompileTimeInterpreter { steps_remaining: const_eval_limit.0, @@ -309,7 +330,7 @@ impl<'mir, 'tcx> interpret::Machine<'mir, 'tcx> for CompileTimeInterpreter<'mir, const PANIC_ON_ALLOC_FAIL: bool = false; // will be raised as a proper error #[inline(always)] - fn enforce_alignment(ecx: &InterpCx<'mir, 'tcx, Self>) -> bool { + fn enforce_alignment(ecx: &InterpCx<'mir, 'tcx, Self>) -> CheckAlignment { ecx.machine.check_alignment } @@ -318,6 +339,36 @@ impl<'mir, 'tcx> interpret::Machine<'mir, 'tcx> for CompileTimeInterpreter<'mir, ecx.tcx.sess.opts.unstable_opts.extra_const_ub_checks } + fn alignment_check_failed( + ecx: &InterpCx<'mir, 'tcx, Self>, + has: Align, + required: Align, + check: CheckAlignment, + ) -> InterpResult<'tcx, ()> { + let err = err_ub!(AlignmentCheckFailed { has, required }).into(); + match check { + CheckAlignment::Error => Err(err), + CheckAlignment::No => span_bug!( + ecx.cur_span(), + "`alignment_check_failed` called when no alignment check requested" + ), + CheckAlignment::FutureIncompat => { + let err = ConstEvalErr::new(ecx, err, None); + ecx.tcx.struct_span_lint_hir( + INVALID_ALIGNMENT, + ecx.stack().iter().find_map(|frame| frame.lint_root()).unwrap_or(CRATE_HIR_ID), + err.span, + err.error.to_string(), + |db| { + err.decorate(db, |_| {}); + db + }, + ); + Ok(()) + } + } + } + fn load_mir( ecx: &InterpCx<'mir, 'tcx, Self>, instance: ty::InstanceDef<'tcx>, diff --git a/compiler/rustc_const_eval/src/const_eval/valtrees.rs b/compiler/rustc_const_eval/src/const_eval/valtrees.rs index f4da1188395..498c0087387 100644 --- a/compiler/rustc_const_eval/src/const_eval/valtrees.rs +++ b/compiler/rustc_const_eval/src/const_eval/valtrees.rs @@ -142,12 +142,11 @@ pub(crate) fn const_to_valtree_inner<'tcx>( | ty::Foreign(..) | ty::Infer(ty::FreshIntTy(_)) | ty::Infer(ty::FreshFloatTy(_)) - | ty::Projection(..) + // FIXME(oli-obk): we could look behind opaque types + | ty::Alias(..) | ty::Param(_) | ty::Bound(..) | ty::Placeholder(..) - // FIXME(oli-obk): we could look behind opaque types - | ty::Opaque(..) | ty::Infer(_) // FIXME(oli-obk): we can probably encode closures just like structs | ty::Closure(..) @@ -307,11 +306,10 @@ pub fn valtree_to_const_value<'tcx>( | ty::Foreign(..) | ty::Infer(ty::FreshIntTy(_)) | ty::Infer(ty::FreshFloatTy(_)) - | ty::Projection(..) + | ty::Alias(..) | ty::Param(_) | ty::Bound(..) | ty::Placeholder(..) - | ty::Opaque(..) | ty::Infer(_) | ty::Closure(..) | ty::Generator(..) diff --git a/compiler/rustc_const_eval/src/interpret/eval_context.rs b/compiler/rustc_const_eval/src/interpret/eval_context.rs index 0b2809f1d2c..f551b5c2911 100644 --- a/compiler/rustc_const_eval/src/interpret/eval_context.rs +++ b/compiler/rustc_const_eval/src/interpret/eval_context.rs @@ -248,6 +248,15 @@ impl<'mir, 'tcx, Prov: Provenance, Extra> Frame<'mir, 'tcx, Prov, Extra> { Right(span) => span, } } + + pub fn lint_root(&self) -> Option<hir::HirId> { + self.current_source_info().and_then(|source_info| { + match &self.body.source_scopes[source_info.scope].local_data { + mir::ClearCrossCrate::Set(data) => Some(data.lint_root), + mir::ClearCrossCrate::Clear => None, + } + }) + } } impl<'tcx> fmt::Display for FrameInfo<'tcx> { @@ -954,12 +963,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { // This deliberately does *not* honor `requires_caller_location` since it is used for much // more than just panics. for frame in stack.iter().rev() { - let lint_root = frame.current_source_info().and_then(|source_info| { - match &frame.body.source_scopes[source_info.scope].local_data { - mir::ClearCrossCrate::Set(data) => Some(data.lint_root), - mir::ClearCrossCrate::Clear => None, - } - }); + let lint_root = frame.lint_root(); let span = frame.current_span(); frames.push(FrameInfo { span, instance: frame.instance, lint_root }); diff --git a/compiler/rustc_const_eval/src/interpret/intrinsics.rs b/compiler/rustc_const_eval/src/interpret/intrinsics.rs index b9be7fa4800..9b56757eb39 100644 --- a/compiler/rustc_const_eval/src/interpret/intrinsics.rs +++ b/compiler/rustc_const_eval/src/interpret/intrinsics.rs @@ -82,11 +82,9 @@ pub(crate) fn eval_nullary_intrinsic<'tcx>( ty::Adt(ref adt, _) => { ConstValue::from_machine_usize(adt.variants().len() as u64, &tcx) } - ty::Projection(_) - | ty::Opaque(_, _) - | ty::Param(_) - | ty::Placeholder(_) - | ty::Infer(_) => throw_inval!(TooGeneric), + ty::Alias(..) | ty::Param(_) | ty::Placeholder(_) | ty::Infer(_) => { + throw_inval!(TooGeneric) + } ty::Bound(_, _) => bug!("bound ty during ctfe"), ty::Bool | ty::Char diff --git a/compiler/rustc_const_eval/src/interpret/machine.rs b/compiler/rustc_const_eval/src/interpret/machine.rs index 0604d5ee6fa..1d4ef20d065 100644 --- a/compiler/rustc_const_eval/src/interpret/machine.rs +++ b/compiler/rustc_const_eval/src/interpret/machine.rs @@ -10,9 +10,11 @@ use rustc_ast::{InlineAsmOptions, InlineAsmTemplatePiece}; use rustc_middle::mir; use rustc_middle::ty::{self, Ty, TyCtxt}; use rustc_span::def_id::DefId; -use rustc_target::abi::Size; +use rustc_target::abi::{Align, Size}; use rustc_target::spec::abi::Abi as CallAbi; +use crate::const_eval::CheckAlignment; + use super::{ AllocId, AllocRange, Allocation, ConstAllocation, Frame, ImmTy, InterpCx, InterpResult, MemoryKind, OpTy, Operand, PlaceTy, Pointer, Provenance, Scalar, StackPopUnwind, @@ -122,7 +124,7 @@ pub trait Machine<'mir, 'tcx>: Sized { const PANIC_ON_ALLOC_FAIL: bool; /// Whether memory accesses should be alignment-checked. - fn enforce_alignment(ecx: &InterpCx<'mir, 'tcx, Self>) -> bool; + fn enforce_alignment(ecx: &InterpCx<'mir, 'tcx, Self>) -> CheckAlignment; /// Whether, when checking alignment, we should look at the actual address and thus support /// custom alignment logic based on whatever the integer address happens to be. @@ -130,6 +132,13 @@ pub trait Machine<'mir, 'tcx>: Sized { /// If this returns true, Provenance::OFFSET_IS_ADDR must be true. fn use_addr_for_alignment_check(ecx: &InterpCx<'mir, 'tcx, Self>) -> bool; + fn alignment_check_failed( + ecx: &InterpCx<'mir, 'tcx, Self>, + has: Align, + required: Align, + check: CheckAlignment, + ) -> InterpResult<'tcx, ()>; + /// Whether to enforce the validity invariant fn enforce_validity(ecx: &InterpCx<'mir, 'tcx, Self>) -> bool; diff --git a/compiler/rustc_const_eval/src/interpret/memory.rs b/compiler/rustc_const_eval/src/interpret/memory.rs index 528c1cb06c0..5b1ac6b2f65 100644 --- a/compiler/rustc_const_eval/src/interpret/memory.rs +++ b/compiler/rustc_const_eval/src/interpret/memory.rs @@ -18,6 +18,8 @@ use rustc_middle::mir::display_allocation; use rustc_middle::ty::{self, Instance, ParamEnv, Ty, TyCtxt}; use rustc_target::abi::{Align, HasDataLayout, Size}; +use crate::const_eval::CheckAlignment; + use super::{ alloc_range, AllocId, AllocMap, AllocRange, Allocation, CheckInAllocMsg, GlobalAlloc, InterpCx, InterpResult, Machine, MayLeak, Pointer, PointerArithmetic, Provenance, Scalar, @@ -349,11 +351,11 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { size: Size, align: Align, ) -> InterpResult<'tcx, Option<(AllocId, Size, M::ProvenanceExtra)>> { - let align = M::enforce_alignment(&self).then_some(align); self.check_and_deref_ptr( ptr, size, align, + M::enforce_alignment(self), CheckInAllocMsg::MemoryAccessTest, |alloc_id, offset, prov| { let (size, align) = self.get_live_alloc_size_and_align(alloc_id)?; @@ -373,10 +375,17 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { align: Align, msg: CheckInAllocMsg, ) -> InterpResult<'tcx> { - self.check_and_deref_ptr(ptr, size, Some(align), msg, |alloc_id, _, _| { - let (size, align) = self.get_live_alloc_size_and_align(alloc_id)?; - Ok((size, align, ())) - })?; + self.check_and_deref_ptr( + ptr, + size, + align, + CheckAlignment::Error, + msg, + |alloc_id, _, _| { + let (size, align) = self.get_live_alloc_size_and_align(alloc_id)?; + Ok((size, align, ())) + }, + )?; Ok(()) } @@ -388,7 +397,8 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { &self, ptr: Pointer<Option<M::Provenance>>, size: Size, - align: Option<Align>, + align: Align, + check: CheckAlignment, msg: CheckInAllocMsg, alloc_size: impl FnOnce( AllocId, @@ -396,19 +406,6 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { M::ProvenanceExtra, ) -> InterpResult<'tcx, (Size, Align, T)>, ) -> InterpResult<'tcx, Option<T>> { - fn check_offset_align<'tcx>(offset: u64, align: Align) -> InterpResult<'tcx> { - if offset % align.bytes() == 0 { - Ok(()) - } else { - // The biggest power of two through which `offset` is divisible. - let offset_pow2 = 1 << offset.trailing_zeros(); - throw_ub!(AlignmentCheckFailed { - has: Align::from_bytes(offset_pow2).unwrap(), - required: align, - }) - } - } - Ok(match self.ptr_try_get_alloc_id(ptr) { Err(addr) => { // We couldn't get a proper allocation. This is only okay if the access size is 0, @@ -417,8 +414,8 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { throw_ub!(DanglingIntPointer(addr, msg)); } // Must be aligned. - if let Some(align) = align { - check_offset_align(addr, align)?; + if check.should_check() { + self.check_offset_align(addr, align, check)?; } None } @@ -441,16 +438,16 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { } // Test align. Check this last; if both bounds and alignment are violated // we want the error to be about the bounds. - if let Some(align) = align { + if check.should_check() { if M::use_addr_for_alignment_check(self) { // `use_addr_for_alignment_check` can only be true if `OFFSET_IS_ADDR` is true. - check_offset_align(ptr.addr().bytes(), align)?; + self.check_offset_align(ptr.addr().bytes(), align, check)?; } else { // Check allocation alignment and offset alignment. if alloc_align.bytes() < align.bytes() { - throw_ub!(AlignmentCheckFailed { has: alloc_align, required: align }); + M::alignment_check_failed(self, alloc_align, align, check)?; } - check_offset_align(offset.bytes(), align)?; + self.check_offset_align(offset.bytes(), align, check)?; } } @@ -460,6 +457,21 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { } }) } + + fn check_offset_align( + &self, + offset: u64, + align: Align, + check: CheckAlignment, + ) -> InterpResult<'tcx> { + if offset % align.bytes() == 0 { + Ok(()) + } else { + // The biggest power of two through which `offset` is divisible. + let offset_pow2 = 1 << offset.trailing_zeros(); + M::alignment_check_failed(self, Align::from_bytes(offset_pow2).unwrap(), align, check) + } + } } /// Allocation accessors @@ -560,11 +572,11 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { size: Size, align: Align, ) -> InterpResult<'tcx, Option<AllocRef<'a, 'tcx, M::Provenance, M::AllocExtra>>> { - let align = M::enforce_alignment(self).then_some(align); let ptr_and_alloc = self.check_and_deref_ptr( ptr, size, align, + M::enforce_alignment(self), CheckInAllocMsg::MemoryAccessTest, |alloc_id, offset, prov| { let alloc = self.get_alloc_raw(alloc_id)?; diff --git a/compiler/rustc_const_eval/src/interpret/place.rs b/compiler/rustc_const_eval/src/interpret/place.rs index c47cfe8bb69..905eb71bb18 100644 --- a/compiler/rustc_const_eval/src/interpret/place.rs +++ b/compiler/rustc_const_eval/src/interpret/place.rs @@ -364,13 +364,8 @@ where .size_and_align_of_mplace(&mplace)? .unwrap_or((mplace.layout.size, mplace.layout.align.abi)); assert!(mplace.align <= align, "dynamic alignment less strict than static one?"); - let align = M::enforce_alignment(self).then_some(align); - self.check_ptr_access_align( - mplace.ptr, - size, - align.unwrap_or(Align::ONE), - CheckInAllocMsg::DerefTest, - )?; + let align = if M::enforce_alignment(self).should_check() { align } else { Align::ONE }; + self.check_ptr_access_align(mplace.ptr, size, align, CheckInAllocMsg::DerefTest)?; Ok(()) } diff --git a/compiler/rustc_const_eval/src/interpret/validity.rs b/compiler/rustc_const_eval/src/interpret/validity.rs index fc65306e440..f905d3fb479 100644 --- a/compiler/rustc_const_eval/src/interpret/validity.rs +++ b/compiler/rustc_const_eval/src/interpret/validity.rs @@ -601,8 +601,7 @@ impl<'rt, 'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> ValidityVisitor<'rt, 'mir, ' | ty::Placeholder(..) | ty::Bound(..) | ty::Param(..) - | ty::Opaque(..) - | ty::Projection(..) + | ty::Alias(..) | ty::GeneratorWitness(..) => bug!("Encountered invalid type {:?}", ty), } } diff --git a/compiler/rustc_const_eval/src/transform/validate.rs b/compiler/rustc_const_eval/src/transform/validate.rs index 64318f5f54d..bb897b95b2c 100644 --- a/compiler/rustc_const_eval/src/transform/validate.rs +++ b/compiler/rustc_const_eval/src/transform/validate.rs @@ -52,7 +52,7 @@ impl<'tcx> MirPass<'tcx> for Validator { }; let always_live_locals = always_storage_live_locals(body); - let storage_liveness = MaybeStorageLive::new(always_live_locals) + let storage_liveness = MaybeStorageLive::new(std::borrow::Cow::Owned(always_live_locals)) .into_engine(tcx, body) .iterate_to_fixpoint() .into_results_cursor(body); @@ -79,7 +79,7 @@ struct TypeChecker<'a, 'tcx> { param_env: ParamEnv<'tcx>, mir_phase: MirPhase, reachable_blocks: BitSet<BasicBlock>, - storage_liveness: ResultsCursor<'a, 'tcx, MaybeStorageLive>, + storage_liveness: ResultsCursor<'a, 'tcx, MaybeStorageLive<'static>>, place_cache: Vec<PlaceRef<'tcx>>, value_cache: Vec<u128>, } @@ -241,7 +241,7 @@ impl<'a, 'tcx> Visitor<'tcx> for TypeChecker<'a, 'tcx> { }; let kind = match parent_ty.ty.kind() { - &ty::Opaque(def_id, substs) => { + &ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => { self.tcx.bound_type_of(def_id).subst(self.tcx, substs).kind() } kind => kind, @@ -652,7 +652,7 @@ impl<'a, 'tcx> Visitor<'tcx> for TypeChecker<'a, 'tcx> { self.fail(location, "`SetDiscriminant`is not allowed until deaggregation"); } let pty = place.ty(&self.body.local_decls, self.tcx).ty.kind(); - if !matches!(pty, ty::Adt(..) | ty::Generator(..) | ty::Opaque(..)) { + if !matches!(pty, ty::Adt(..) | ty::Generator(..) | ty::Alias(ty::Opaque, ..)) { self.fail( location, format!( diff --git a/compiler/rustc_const_eval/src/util/call_kind.rs b/compiler/rustc_const_eval/src/util/call_kind.rs index b38a6c55138..38d9b044981 100644 --- a/compiler/rustc_const_eval/src/util/call_kind.rs +++ b/compiler/rustc_const_eval/src/util/call_kind.rs @@ -5,7 +5,7 @@ use rustc_hir::def_id::DefId; use rustc_hir::{lang_items, LangItem}; use rustc_middle::ty::subst::SubstsRef; -use rustc_middle::ty::{self, AssocItemContainer, DefIdTree, Instance, ParamEnv, Ty, TyCtxt}; +use rustc_middle::ty::{AssocItemContainer, Instance, ParamEnv, Ty, TyCtxt}; use rustc_span::symbol::Ident; use rustc_span::{sym, DesugaringKind, Span}; @@ -39,9 +39,7 @@ pub enum CallKind<'tcx> { Normal { self_arg: Option<Ident>, desugaring: Option<(CallDesugaringKind, Ty<'tcx>)>, - /// Whether the self type of the method call has an `.as_ref()` method. - /// Used for better diagnostics. - is_option_or_result: bool, + method_did: DefId, }, /// A call to `Fn(..)::call(..)`, desugared from `my_closure(a, b, c)` FnCall { fn_trait_id: DefId, self_ty: Ty<'tcx> }, @@ -133,16 +131,6 @@ pub fn call_kind<'tcx>( } else { None }; - let parent_did = tcx.parent(method_did); - let parent_self_ty = (tcx.def_kind(parent_did) == rustc_hir::def::DefKind::Impl) - .then_some(parent_did) - .and_then(|did| match tcx.type_of(did).kind() { - ty::Adt(def, ..) => Some(def.did()), - _ => None, - }); - let is_option_or_result = parent_self_ty.map_or(false, |def_id| { - matches!(tcx.get_diagnostic_name(def_id), Some(sym::Option | sym::Result)) - }); - CallKind::Normal { self_arg, desugaring, is_option_or_result } + CallKind::Normal { self_arg, desugaring, method_did } }) } diff --git a/compiler/rustc_const_eval/src/util/might_permit_raw_init.rs b/compiler/rustc_const_eval/src/util/might_permit_raw_init.rs index 6ca71223391..4ce107ea68d 100644 --- a/compiler/rustc_const_eval/src/util/might_permit_raw_init.rs +++ b/compiler/rustc_const_eval/src/util/might_permit_raw_init.rs @@ -3,7 +3,7 @@ use rustc_middle::ty::{ParamEnv, TyCtxt}; use rustc_session::Limit; use rustc_target::abi::{Abi, FieldsShape, InitKind, Scalar, Variants}; -use crate::const_eval::CompileTimeInterpreter; +use crate::const_eval::{CheckAlignment, CompileTimeInterpreter}; use crate::interpret::{InterpCx, MemoryKind, OpTy}; /// Determines if this type permits "raw" initialization by just transmuting some memory into an @@ -41,7 +41,7 @@ fn might_permit_raw_init_strict<'tcx>( let machine = CompileTimeInterpreter::new( Limit::new(0), /*can_access_statics:*/ false, - /*check_alignment:*/ true, + CheckAlignment::Error, ); let mut cx = InterpCx::new(tcx, rustc_span::DUMMY_SP, ParamEnv::reveal_all(), machine); diff --git a/compiler/rustc_const_eval/src/util/type_name.rs b/compiler/rustc_const_eval/src/util/type_name.rs index 14c8c88028b..c4122f66498 100644 --- a/compiler/rustc_const_eval/src/util/type_name.rs +++ b/compiler/rustc_const_eval/src/util/type_name.rs @@ -58,8 +58,7 @@ impl<'tcx> Printer<'tcx> for AbsolutePathPrinter<'tcx> { // Types with identity (print the module path). ty::Adt(ty::AdtDef(Interned(&ty::AdtDefData { did: def_id, .. }, _)), substs) | ty::FnDef(def_id, substs) - | ty::Opaque(def_id, substs) - | ty::Projection(ty::ProjectionTy { item_def_id: def_id, substs }) + | ty::Alias(_, ty::AliasTy { def_id, substs, .. }) | ty::Closure(def_id, substs) | ty::Generator(def_id, substs, _) => self.print_def_path(def_id, substs), ty::Foreign(def_id) => self.print_def_path(def_id, &[]), diff --git a/compiler/rustc_data_structures/src/base_n.rs b/compiler/rustc_data_structures/src/base_n.rs index 3c7bea27124..4567759c004 100644 --- a/compiler/rustc_data_structures/src/base_n.rs +++ b/compiler/rustc_data_structures/src/base_n.rs @@ -9,7 +9,7 @@ pub const MAX_BASE: usize = 64; pub const ALPHANUMERIC_ONLY: usize = 62; pub const CASE_INSENSITIVE: usize = 36; -const BASE_64: &[u8; MAX_BASE as usize] = +const BASE_64: &[u8; MAX_BASE] = b"0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ@$"; #[inline] diff --git a/compiler/rustc_data_structures/src/sorted_map.rs b/compiler/rustc_data_structures/src/sorted_map.rs index 03ff5e5b375..05f059c89d5 100644 --- a/compiler/rustc_data_structures/src/sorted_map.rs +++ b/compiler/rustc_data_structures/src/sorted_map.rs @@ -126,13 +126,13 @@ impl<K: Ord, V> SortedMap<K, V> { /// Iterate over the keys, sorted #[inline] pub fn keys(&self) -> impl Iterator<Item = &K> + ExactSizeIterator + DoubleEndedIterator { - self.data.iter().map(|&(ref k, _)| k) + self.data.iter().map(|(k, _)| k) } /// Iterate over values, sorted by key #[inline] pub fn values(&self) -> impl Iterator<Item = &V> + ExactSizeIterator + DoubleEndedIterator { - self.data.iter().map(|&(_, ref v)| v) + self.data.iter().map(|(_, v)| v) } #[inline] @@ -222,7 +222,7 @@ impl<K: Ord, V> SortedMap<K, V> { K: Borrow<Q>, Q: Ord + ?Sized, { - self.data.binary_search_by(|&(ref x, _)| x.borrow().cmp(key)) + self.data.binary_search_by(|(x, _)| x.borrow().cmp(key)) } #[inline] @@ -300,7 +300,7 @@ impl<K: Ord, V> FromIterator<(K, V)> for SortedMap<K, V> { fn from_iter<T: IntoIterator<Item = (K, V)>>(iter: T) -> Self { let mut data: Vec<(K, V)> = iter.into_iter().collect(); - data.sort_unstable_by(|&(ref k1, _), &(ref k2, _)| k1.cmp(k2)); + data.sort_unstable_by(|(k1, _), (k2, _)| k1.cmp(k2)); data.dedup_by(|&mut (ref k1, _), &mut (ref k2, _)| k1.cmp(k2) == Ordering::Equal); SortedMap { data } diff --git a/compiler/rustc_error_codes/src/error_codes.rs b/compiler/rustc_error_codes/src/error_codes.rs index 31a709c36d4..67c512e98d6 100644 --- a/compiler/rustc_error_codes/src/error_codes.rs +++ b/compiler/rustc_error_codes/src/error_codes.rs @@ -163,6 +163,7 @@ E0311: include_str!("./error_codes/E0311.md"), E0312: include_str!("./error_codes/E0312.md"), E0316: include_str!("./error_codes/E0316.md"), E0317: include_str!("./error_codes/E0317.md"), +E0320: include_str!("./error_codes/E0320.md"), E0321: include_str!("./error_codes/E0321.md"), E0322: include_str!("./error_codes/E0322.md"), E0323: include_str!("./error_codes/E0323.md"), @@ -575,7 +576,6 @@ E0791: include_str!("./error_codes/E0791.md"), // E0314, // closure outlives stack frame // E0315, // cannot invoke closure outside of its lifetime // E0319, // trait impls for defaulted traits allowed just for structs/enums - E0320, // recursive overflow during dropck // E0372, // coherence not object safe E0377, // the trait `CoerceUnsized` may only be implemented for a coercion // between structures with the same definition diff --git a/compiler/rustc_error_codes/src/error_codes/E0158.md b/compiler/rustc_error_codes/src/error_codes/E0158.md index 0a9ef9c3938..03b93d925c1 100644 --- a/compiler/rustc_error_codes/src/error_codes/E0158.md +++ b/compiler/rustc_error_codes/src/error_codes/E0158.md @@ -1,38 +1,53 @@ -An associated const has been referenced in a pattern. +An associated `const`, `const` parameter or `static` has been referenced +in a pattern. Erroneous code example: ```compile_fail,E0158 -enum EFoo { A, B, C, D } +enum Foo { + One, + Two +} -trait Foo { - const X: EFoo; +trait Bar { + const X: Foo; } -fn test<A: Foo>(arg: EFoo) { +fn test<A: Bar>(arg: Foo) { match arg { - A::X => { // error! - println!("A::X"); - } + A::X => println!("A::X"), // error: E0158: associated consts cannot be + // referenced in patterns + Foo::Two => println!("Two") } } ``` -`const` and `static` mean different things. A `const` is a compile-time -constant, an alias for a literal value. This property means you can match it -directly within a pattern. +Associated `const`s cannot be referenced in patterns because it is impossible +for the compiler to prove exhaustiveness (that some pattern will always match). +Take the above example, because Rust does type checking in the *generic* +method, not the *monomorphized* specific instance. So because `Bar` could have +theoretically infinite implementations, there's no way to always be sure that +`A::X` is `Foo::One`. So this code must be rejected. Even if code can be +proven exhaustive by a programmer, the compiler cannot currently prove this. -The `static` keyword, on the other hand, guarantees a fixed location in memory. -This does not always mean that the value is constant. For example, a global -mutex can be declared `static` as well. +The same holds true of `const` parameters and `static`s. -If you want to match against a `static`, consider using a guard instead: +If you want to match against an associated `const`, `const` parameter or +`static` consider using a guard instead: ``` -static FORTY_TWO: i32 = 42; +trait Trait { + const X: char; +} + +static FOO: char = 'j'; -match Some(42) { - Some(x) if x == FORTY_TWO => {} - _ => {} +fn test<A: Trait, const Y: char>(arg: char) { + match arg { + c if c == A::X => println!("A::X"), + c if c == Y => println!("Y"), + c if c == FOO => println!("FOO"), + _ => () + } } ``` diff --git a/compiler/rustc_error_codes/src/error_codes/E0320.md b/compiler/rustc_error_codes/src/error_codes/E0320.md new file mode 100644 index 00000000000..e6e1b7c19a5 --- /dev/null +++ b/compiler/rustc_error_codes/src/error_codes/E0320.md @@ -0,0 +1,27 @@ +Recursion limit reached while creating drop-check rules. + +Example of erroneous code: + +```compile_fail,E0320 +enum A<T> { + B, + C(T, Box<A<(T, T)>>) +} + +fn foo<T>() { + A::<T>::B; // error: overflow while adding drop-check rules for A<T> +} +``` + +The Rust compiler must be able to reason about how a type is [`Drop`]ped, and +by extension the types of its fields, to be able to generate the glue to +properly drop a value. The code example above shows a type where this inference +is impossible because it is recursive. Note that this is *not* the same as +[E0072](E0072.html), where a type has an infinite size; the type here has a +finite size but any attempt to `Drop` it would recurse infinitely. For more +information, read [the `Drop` docs](../std/ops/trait.Drop.html). + +It is not possible to define a type with recursive drop-check rules. All such +recursion must be removed. + +[`Drop`]: ../std/ops/trait.Drop.html diff --git a/compiler/rustc_error_messages/locales/en-US/codegen_llvm.ftl b/compiler/rustc_error_messages/locales/en-US/codegen_llvm.ftl index 97198cb4be2..860212b051f 100644 --- a/compiler/rustc_error_messages/locales/en-US/codegen_llvm.ftl +++ b/compiler/rustc_error_messages/locales/en-US/codegen_llvm.ftl @@ -17,9 +17,6 @@ codegen_llvm_instrument_coverage_requires_llvm_12 = codegen_llvm_symbol_already_defined = symbol `{$symbol_name}` is already defined -codegen_llvm_branch_protection_requires_aarch64 = - -Zbranch-protection is only supported on aarch64 - codegen_llvm_invalid_minimum_alignment = invalid minimum global alignment: {$err} diff --git a/compiler/rustc_error_messages/locales/en-US/codegen_ssa.ftl b/compiler/rustc_error_messages/locales/en-US/codegen_ssa.ftl index 4d1f9c1c901..db4c82b35c7 100644 --- a/compiler/rustc_error_messages/locales/en-US/codegen_ssa.ftl +++ b/compiler/rustc_error_messages/locales/en-US/codegen_ssa.ftl @@ -192,3 +192,5 @@ codegen_ssa_archive_build_failure = codegen_ssa_unknown_archive_kind = Don't know how to build archive of type: {$kind} + +codegen_ssa_expected_used_symbol = expected `used`, `used(compiler)` or `used(linker)` diff --git a/compiler/rustc_error_messages/locales/en-US/hir_analysis.ftl b/compiler/rustc_error_messages/locales/en-US/hir_analysis.ftl index a9ea161b93e..26cdf8a58f3 100644 --- a/compiler/rustc_error_messages/locales/en-US/hir_analysis.ftl +++ b/compiler/rustc_error_messages/locales/en-US/hir_analysis.ftl @@ -20,6 +20,10 @@ hir_analysis_lifetimes_or_bounds_mismatch_on_trait = .where_label = this `where` clause might not match the one in the trait .bounds_label = this bound might be missing in the impl +hir_analysis_async_trait_impl_should_be_async = + method `{$method_name}` should be async because the method from the trait is async + .trait_item_label = required because the trait method is async + hir_analysis_drop_impl_on_wrong_item = the `Drop` trait may only be implemented for local structs, enums, and unions .label = must be a struct, enum, or union in the current crate @@ -101,8 +105,6 @@ hir_analysis_extern_crate_not_idiomatic = `extern crate` is not idiomatic in the new edition .suggestion = convert it to a `{$msg_code}` -hir_analysis_expected_used_symbol = expected `used`, `used(compiler)` or `used(linker)` - hir_analysis_const_impl_for_non_const_trait = const `impl` for trait `{$trait_name}` which is not marked with `#[const_trait]` .suggestion = mark `{$trait_name}` as const diff --git a/compiler/rustc_error_messages/locales/en-US/metadata.ftl b/compiler/rustc_error_messages/locales/en-US/metadata.ftl index d1e1fd54db9..b3ca540417d 100644 --- a/compiler/rustc_error_messages/locales/en-US/metadata.ftl +++ b/compiler/rustc_error_messages/locales/en-US/metadata.ftl @@ -166,12 +166,6 @@ metadata_conflicting_alloc_error_handler = metadata_global_alloc_required = no global memory allocator found but one is required; link to std or add `#[global_allocator]` to a static item that implements the GlobalAlloc trait -metadata_alloc_func_required = - `#[alloc_error_handler]` function required, but not found - -metadata_missing_alloc_error_handler = - use `#![feature(default_alloc_error_handler)]` for a default error handler - metadata_no_transitive_needs_dep = the crate `{$crate_name}` cannot depend on a crate that needs {$needs_crate_name}, but it depends on `{$deps_crate_name}` diff --git a/compiler/rustc_error_messages/locales/en-US/monomorphize.ftl b/compiler/rustc_error_messages/locales/en-US/monomorphize.ftl index 48ddb54b79e..243d10bfa06 100644 --- a/compiler/rustc_error_messages/locales/en-US/monomorphize.ftl +++ b/compiler/rustc_error_messages/locales/en-US/monomorphize.ftl @@ -21,3 +21,6 @@ monomorphize_large_assignments = moving {$size} bytes .label = value moved from here .note = The current maximum size is {$limit}, but it can be customized with the move_size_limit attribute: `#![move_size_limit = "..."]` + +monomorphize_couldnt_dump_mono_stats = + unexpected error occurred while dumping monomorphization stats: {$error} diff --git a/compiler/rustc_error_messages/locales/en-US/parse.ftl b/compiler/rustc_error_messages/locales/en-US/parse.ftl index 114b7ec1628..b53550e5fd5 100644 --- a/compiler/rustc_error_messages/locales/en-US/parse.ftl +++ b/compiler/rustc_error_messages/locales/en-US/parse.ftl @@ -362,3 +362,6 @@ parse_fn_ptr_with_generics = function pointer types may not have generic paramet parse_invalid_identifier_with_leading_number = expected identifier, found number literal .label = identifiers cannot start with a number + +parse_maybe_fn_typo_with_impl = you might have meant to write `impl` instead of `fn` + .suggestion = replace `fn` with `impl` here diff --git a/compiler/rustc_error_messages/locales/en-US/session.ftl b/compiler/rustc_error_messages/locales/en-US/session.ftl index 983eb926213..ab9e8b6baae 100644 --- a/compiler/rustc_error_messages/locales/en-US/session.ftl +++ b/compiler/rustc_error_messages/locales/en-US/session.ftl @@ -41,6 +41,8 @@ session_unsupported_dwarf_version = requested DWARF version {$dwarf_version} is session_target_stack_protector_not_supported = `-Z stack-protector={$stack_protector}` is not supported for target {$target_triple} and will be ignored +session_branch_protection_requires_aarch64 = `-Zbranch-protection` is only supported on aarch64 + session_split_debuginfo_unstable_platform = `-Csplit-debuginfo={$debuginfo}` is unstable on this platform session_file_is_not_writeable = output file {$file} is not writeable -- check its permissions diff --git a/compiler/rustc_errors/src/diagnostic.rs b/compiler/rustc_errors/src/diagnostic.rs index 06bb5edc090..585a54308c6 100644 --- a/compiler/rustc_errors/src/diagnostic.rs +++ b/compiler/rustc_errors/src/diagnostic.rs @@ -370,7 +370,11 @@ impl Diagnostic { self.set_span(after); for span_label in before.span_labels() { if let Some(label) = span_label.label { - self.span.push_span_label(after, label); + if span_label.is_primary { + self.span.push_span_label(after, label); + } else { + self.span.push_span_label(span_label.span, label); + } } } self @@ -802,7 +806,7 @@ impl Diagnostic { debug_assert!( !(suggestions .iter() - .flat_map(|suggs| suggs) + .flatten() .any(|(sp, suggestion)| sp.is_empty() && suggestion.is_empty())), "Span must not be empty and have no suggestion" ); diff --git a/compiler/rustc_errors/src/emitter.rs b/compiler/rustc_errors/src/emitter.rs index 4df2198fb0e..e2a0e436fd5 100644 --- a/compiler/rustc_errors/src/emitter.rs +++ b/compiler/rustc_errors/src/emitter.rs @@ -1308,7 +1308,7 @@ impl EmitterWriter { // see how it *looks* with // very *weird* formats // see? - for &(ref text, ref style) in msg.iter() { + for (text, style) in msg.iter() { let text = self.translate_message(text, args); let lines = text.split('\n').collect::<Vec<_>>(); if lines.len() > 1 { @@ -1370,7 +1370,7 @@ impl EmitterWriter { buffer.append(0, ": ", header_style); label_width += 2; } - for &(ref text, _) in msg.iter() { + for (text, _) in msg.iter() { let text = self.translate_message(text, args); // Account for newlines to align output to its label. for (line, text) in normalize_whitespace(&text).lines().enumerate() { @@ -1408,49 +1408,58 @@ impl EmitterWriter { if !sm.ensure_source_file_source_present(annotated_file.file.clone()) { if !self.short_message { // We'll just print an unannotated message. - for (annotation_id, line) in annotated_file.lines.into_iter().enumerate() { + for (annotation_id, line) in annotated_file.lines.iter().enumerate() { let mut annotations = line.annotations.clone(); annotations.sort_by_key(|a| Reverse(a.start_col)); let mut line_idx = buffer.num_lines(); - buffer.append( - line_idx, - &format!( - "{}:{}:{}", - sm.filename_for_diagnostics(&annotated_file.file.name), - sm.doctest_offset_line(&annotated_file.file.name, line.line_index), - annotations[0].start_col + 1, - ), - Style::LineAndColumn, - ); - if annotation_id == 0 { - buffer.prepend(line_idx, "--> ", Style::LineNumber); + + let labels: Vec<_> = annotations + .iter() + .filter_map(|a| Some((a.label.as_ref()?, a.is_primary))) + .filter(|(l, _)| !l.is_empty()) + .collect(); + + if annotation_id == 0 || !labels.is_empty() { + buffer.append( + line_idx, + &format!( + "{}:{}:{}", + sm.filename_for_diagnostics(&annotated_file.file.name), + sm.doctest_offset_line( + &annotated_file.file.name, + line.line_index + ), + annotations[0].start_col + 1, + ), + Style::LineAndColumn, + ); + if annotation_id == 0 { + buffer.prepend(line_idx, "--> ", Style::LineNumber); + } else { + buffer.prepend(line_idx, "::: ", Style::LineNumber); + } for _ in 0..max_line_num_len { buffer.prepend(line_idx, " ", Style::NoStyle); } line_idx += 1; - }; - for (i, annotation) in annotations.into_iter().enumerate() { - if let Some(label) = &annotation.label { - let style = if annotation.is_primary { - Style::LabelPrimary - } else { - Style::LabelSecondary - }; - if annotation_id == 0 { - buffer.prepend(line_idx, " |", Style::LineNumber); - for _ in 0..max_line_num_len { - buffer.prepend(line_idx, " ", Style::NoStyle); - } - line_idx += 1; - buffer.append(line_idx + i, " = note: ", style); - for _ in 0..max_line_num_len { - buffer.prepend(line_idx, " ", Style::NoStyle); - } - } else { - buffer.append(line_idx + i, ": ", style); - } - buffer.append(line_idx + i, label, style); + } + for (label, is_primary) in labels.into_iter() { + let style = if is_primary { + Style::LabelPrimary + } else { + Style::LabelSecondary + }; + buffer.prepend(line_idx, " |", Style::LineNumber); + for _ in 0..max_line_num_len { + buffer.prepend(line_idx, " ", Style::NoStyle); + } + line_idx += 1; + buffer.append(line_idx, " = note: ", style); + for _ in 0..max_line_num_len { + buffer.prepend(line_idx, " ", Style::NoStyle); } + buffer.append(line_idx, label, style); + line_idx += 1; } } } @@ -2304,7 +2313,7 @@ impl FileWithAnnotatedLines { } // Find overlapping multiline annotations, put them at different depths - multiline_annotations.sort_by_key(|&(_, ref ml)| (ml.line_start, usize::MAX - ml.line_end)); + multiline_annotations.sort_by_key(|(_, ml)| (ml.line_start, usize::MAX - ml.line_end)); for (_, ann) in multiline_annotations.clone() { for (_, a) in multiline_annotations.iter_mut() { // Move all other multiline annotations overlapping with this one diff --git a/compiler/rustc_errors/src/lib.rs b/compiler/rustc_errors/src/lib.rs index eb0506c459a..518b5ec10f8 100644 --- a/compiler/rustc_errors/src/lib.rs +++ b/compiler/rustc_errors/src/lib.rs @@ -324,7 +324,7 @@ impl CodeSuggestion { // Account for the difference between the width of the current code and the // snippet being suggested, so that the *later* suggestions are correctly // aligned on the screen. - acc += len as isize - (cur_hi.col.0 - cur_lo.col.0) as isize; + acc += len - (cur_hi.col.0 - cur_lo.col.0) as isize; } prev_hi = cur_hi; prev_line = sf.get_line(prev_hi.line - 1); diff --git a/compiler/rustc_feature/src/accepted.rs b/compiler/rustc_feature/src/accepted.rs index 7678ce323df..e5348039edd 100644 --- a/compiler/rustc_feature/src/accepted.rs +++ b/compiler/rustc_feature/src/accepted.rs @@ -126,6 +126,8 @@ declare_features! ( (accepted, copy_closures, "1.26.0", Some(44490), None), /// Allows `crate` in paths. (accepted, crate_in_paths, "1.30.0", Some(45477), None), + /// Allows rustc to inject a default alloc_error_handler + (accepted, default_alloc_error_handler, "CURRENT_RUSTC_VERSION", Some(66741), None), /// Allows using assigning a default type to type parameters in algebraic data type definitions. (accepted, default_type_params, "1.0.0", None, None), /// Allows `#[deprecated]` attribute. diff --git a/compiler/rustc_feature/src/active.rs b/compiler/rustc_feature/src/active.rs index 69c5297bf6b..a616dd70f8e 100644 --- a/compiler/rustc_feature/src/active.rs +++ b/compiler/rustc_feature/src/active.rs @@ -368,8 +368,6 @@ declare_features! ( (active, debugger_visualizer, "1.62.0", Some(95939), None), /// Allows declarative macros 2.0 (`macro`). (active, decl_macro, "1.17.0", Some(39412), None), - /// Allows rustc to inject a default alloc_error_handler - (active, default_alloc_error_handler, "1.48.0", Some(66741), None), /// Allows default type parameters to influence type inference. (active, default_type_parameter_fallback, "1.3.0", Some(27336), None), /// Allows using `#[deprecated_safe]` to deprecate the safeness of a function or trait diff --git a/compiler/rustc_hir/src/hir.rs b/compiler/rustc_hir/src/hir.rs index 8bc022e1e17..91825c29258 100644 --- a/compiler/rustc_hir/src/hir.rs +++ b/compiler/rustc_hir/src/hir.rs @@ -548,12 +548,7 @@ impl<'hir> Generics<'hir> { } pub fn get_named(&self, name: Symbol) -> Option<&GenericParam<'hir>> { - for param in self.params { - if name == param.name.ident().name { - return Some(param); - } - } - None + self.params.iter().find(|¶m| name == param.name.ident().name) } pub fn spans(&self) -> MultiSpan { diff --git a/compiler/rustc_hir_analysis/src/astconv/mod.rs b/compiler/rustc_hir_analysis/src/astconv/mod.rs index 66906b331da..71f26eb60c9 100644 --- a/compiler/rustc_hir_analysis/src/astconv/mod.rs +++ b/compiler/rustc_hir_analysis/src/astconv/mod.rs @@ -680,7 +680,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { let assoc_bindings = self.create_assoc_bindings_for_generic_args(args); let poly_trait_ref = - ty::Binder::bind_with_vars(ty::TraitRef::new(trait_def_id, substs), bound_vars); + ty::Binder::bind_with_vars(tcx.mk_trait_ref(trait_def_id, substs), bound_vars); debug!(?poly_trait_ref, ?assoc_bindings); bounds.trait_bounds.push((poly_trait_ref, span, constness)); @@ -813,7 +813,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { if let Some(b) = trait_segment.args().bindings.first() { Self::prohibit_assoc_ty_binding(self.tcx(), b.span); } - ty::TraitRef::new(trait_def_id, substs) + self.tcx().mk_trait_ref(trait_def_id, substs) } #[instrument(level = "debug", skip(self, span))] @@ -1146,10 +1146,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { debug!(?substs_trait_ref_and_assoc_item); - ty::ProjectionTy { - item_def_id: assoc_item.def_id, - substs: substs_trait_ref_and_assoc_item, - } + self.tcx().mk_alias_ty(assoc_item.def_id, substs_trait_ref_and_assoc_item) }); if !speculative { @@ -1195,7 +1192,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { // the "projection predicate" for: // // `<T as Iterator>::Item = u32` - let assoc_item_def_id = projection_ty.skip_binder().item_def_id; + let assoc_item_def_id = projection_ty.skip_binder().def_id; let def_kind = tcx.def_kind(assoc_item_def_id); match (def_kind, term.unpack()) { (hir::def::DefKind::AssocTy, ty::TermKind::Ty(_)) @@ -1244,7 +1241,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { // // Calling `skip_binder` is okay, because `add_bounds` expects the `param_ty` // parameter to have a skipped binder. - let param_ty = tcx.mk_ty(ty::Projection(projection_ty.skip_binder())); + let param_ty = tcx.mk_ty(ty::Alias(ty::Projection, projection_ty.skip_binder())); self.add_bounds(param_ty, ast_bounds.iter(), bounds, candidate.bound_vars()); } } diff --git a/compiler/rustc_hir_analysis/src/check/check.rs b/compiler/rustc_hir_analysis/src/check/check.rs index fc0ca62090d..aa01feb3a1e 100644 --- a/compiler/rustc_hir_analysis/src/check/check.rs +++ b/compiler/rustc_hir_analysis/src/check/check.rs @@ -570,7 +570,7 @@ fn check_item_type<'tcx>(tcx: TyCtxt<'tcx>, id: hir::ItemId) { assoc_item, assoc_item, default.span, - ty::TraitRef { def_id: it.owner_id.to_def_id(), substs: trait_substs }, + tcx.mk_trait_ref(it.owner_id.to_def_id(), trait_substs), ); } _ => {} @@ -1440,7 +1440,7 @@ fn opaque_type_cycle_error(tcx: TyCtxt<'_>, def_id: LocalDefId, span: Span) -> E impl<'tcx> ty::visit::TypeVisitor<'tcx> for OpaqueTypeCollector { fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<Self::BreakTy> { match *t.kind() { - ty::Opaque(def, _) => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id: def, .. }) => { self.0.push(def); ControlFlow::CONTINUE } diff --git a/compiler/rustc_hir_analysis/src/check/compare_method.rs b/compiler/rustc_hir_analysis/src/check/compare_method.rs index 1d6f9b29176..b69728c24aa 100644 --- a/compiler/rustc_hir_analysis/src/check/compare_method.rs +++ b/compiler/rustc_hir_analysis/src/check/compare_method.rs @@ -67,6 +67,10 @@ pub(crate) fn compare_impl_method<'tcx>( return; } + if let Err(_) = compare_asyncness(tcx, impl_m, impl_m_span, trait_m, trait_item_span) { + return; + } + if let Err(_) = compare_predicate_entailment(tcx, impl_m, impl_m_span, trait_m, impl_trait_ref) { return; @@ -323,6 +327,34 @@ fn compare_predicate_entailment<'tcx>( Ok(()) } +fn compare_asyncness<'tcx>( + tcx: TyCtxt<'tcx>, + impl_m: &ty::AssocItem, + impl_m_span: Span, + trait_m: &ty::AssocItem, + trait_item_span: Option<Span>, +) -> Result<(), ErrorGuaranteed> { + if tcx.asyncness(trait_m.def_id) == hir::IsAsync::Async { + match tcx.fn_sig(impl_m.def_id).skip_binder().output().kind() { + ty::Alias(ty::Opaque, ..) => { + // allow both `async fn foo()` and `fn foo() -> impl Future` + } + ty::Error(rustc_errors::ErrorGuaranteed { .. }) => { + // We don't know if it's ok, but at least it's already an error. + } + _ => { + return Err(tcx.sess.emit_err(crate::errors::AsyncTraitImplShouldBeAsync { + span: impl_m_span, + method_name: trait_m.name, + trait_item_span, + })); + } + }; + } + + Ok(()) +} + #[instrument(skip(tcx), level = "debug", ret)] pub fn collect_trait_impl_trait_tys<'tcx>( tcx: TyCtxt<'tcx>, @@ -373,6 +405,7 @@ pub fn collect_trait_impl_trait_tys<'tcx>( tcx.fn_sig(impl_m.def_id), ), ); + impl_sig.error_reported()?; let impl_return_ty = impl_sig.output(); // Normalize the trait signature with liberated bound vars, passing it through @@ -387,6 +420,7 @@ pub fn collect_trait_impl_trait_tys<'tcx>( ) .fold_with(&mut collector); let trait_sig = ocx.normalize(&norm_cause, param_env, unnormalized_trait_sig); + trait_sig.error_reported()?; let trait_return_ty = trait_sig.output(); let wf_tys = FxIndexSet::from_iter( @@ -571,10 +605,10 @@ impl<'tcx> TypeFolder<'tcx> for ImplTraitInTraitCollector<'_, 'tcx> { } fn fold_ty(&mut self, ty: Ty<'tcx>) -> Ty<'tcx> { - if let ty::Projection(proj) = ty.kind() - && self.tcx().def_kind(proj.item_def_id) == DefKind::ImplTraitPlaceholder + if let ty::Alias(ty::Projection, proj) = ty.kind() + && self.tcx().def_kind(proj.def_id) == DefKind::ImplTraitPlaceholder { - if let Some((ty, _)) = self.types.get(&proj.item_def_id) { + if let Some((ty, _)) = self.types.get(&proj.def_id) { return *ty; } //FIXME(RPITIT): Deny nested RPITIT in substs too @@ -586,9 +620,9 @@ impl<'tcx> TypeFolder<'tcx> for ImplTraitInTraitCollector<'_, 'tcx> { span: self.span, kind: TypeVariableOriginKind::MiscVariable, }); - self.types.insert(proj.item_def_id, (infer_ty, proj.substs)); + self.types.insert(proj.def_id, (infer_ty, proj.substs)); // Recurse into bounds - for (pred, pred_span) in self.tcx().bound_explicit_item_bounds(proj.item_def_id).subst_iter_copied(self.tcx(), proj.substs) { + for (pred, pred_span) in self.tcx().bound_explicit_item_bounds(proj.def_id).subst_iter_copied(self.tcx(), proj.substs) { let pred = pred.fold_with(self); let pred = self.ocx.normalize( &ObligationCause::misc(self.span, self.body_id), @@ -601,7 +635,7 @@ impl<'tcx> TypeFolder<'tcx> for ImplTraitInTraitCollector<'_, 'tcx> { ObligationCause::new( self.span, self.body_id, - ObligationCauseCode::BindingObligation(proj.item_def_id, pred_span), + ObligationCauseCode::BindingObligation(proj.def_id, pred_span), ), self.param_env, pred, @@ -1734,8 +1768,8 @@ pub fn check_type_bounds<'tcx>( let normalize_param_env = { let mut predicates = param_env.caller_bounds().iter().collect::<Vec<_>>(); match impl_ty_value.kind() { - ty::Projection(proj) - if proj.item_def_id == trait_ty.def_id && proj.substs == rebased_substs => + ty::Alias(ty::Projection, proj) + if proj.def_id == trait_ty.def_id && proj.substs == rebased_substs => { // Don't include this predicate if the projected type is // exactly the same as the projection. This can occur in @@ -1746,10 +1780,7 @@ pub fn check_type_bounds<'tcx>( _ => predicates.push( ty::Binder::bind_with_vars( ty::ProjectionPredicate { - projection_ty: ty::ProjectionTy { - item_def_id: trait_ty.def_id, - substs: rebased_substs, - }, + projection_ty: tcx.mk_alias_ty(trait_ty.def_id, rebased_substs), term: impl_ty_value.into(), }, bound_vars, diff --git a/compiler/rustc_hir_analysis/src/check/mod.rs b/compiler/rustc_hir_analysis/src/check/mod.rs index 29255472a25..57f0cae12bb 100644 --- a/compiler/rustc_hir_analysis/src/check/mod.rs +++ b/compiler/rustc_hir_analysis/src/check/mod.rs @@ -352,11 +352,7 @@ fn bounds_from_generic_predicates<'tcx>( // insert the associated types where they correspond, but for now let's be "lazy" and // propose this instead of the following valid resugaring: // `T: Trait, Trait::Assoc = K` → `T: Trait<Assoc = K>` - where_clauses.push(format!( - "{} = {}", - tcx.def_path_str(p.projection_ty.item_def_id), - p.term, - )); + where_clauses.push(format!("{} = {}", tcx.def_path_str(p.projection_ty.def_id), p.term)); } let where_clauses = if where_clauses.is_empty() { String::new() diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs index 69eb96fe8e9..94d333c336e 100644 --- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs +++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs @@ -759,7 +759,7 @@ impl<'tcx> TypeVisitor<'tcx> for GATSubstCollector<'tcx> { fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<Self::BreakTy> { match t.kind() { - ty::Projection(p) if p.item_def_id == self.gat => { + ty::Alias(ty::Projection, p) if p.def_id == self.gat => { for (idx, subst) in p.substs.iter().enumerate() { match subst.unpack() { GenericArgKind::Lifetime(lt) if !lt.is_late_bound() => { @@ -1592,12 +1592,12 @@ fn check_return_position_impl_trait_in_trait_bounds<'tcx>( { for arg in fn_output.walk() { if let ty::GenericArgKind::Type(ty) = arg.unpack() - && let ty::Projection(proj) = ty.kind() - && tcx.def_kind(proj.item_def_id) == DefKind::ImplTraitPlaceholder - && tcx.impl_trait_in_trait_parent(proj.item_def_id) == fn_def_id.to_def_id() + && let ty::Alias(ty::Projection, proj) = ty.kind() + && tcx.def_kind(proj.def_id) == DefKind::ImplTraitPlaceholder + && tcx.impl_trait_in_trait_parent(proj.def_id) == fn_def_id.to_def_id() { - let span = tcx.def_span(proj.item_def_id); - let bounds = wfcx.tcx().explicit_item_bounds(proj.item_def_id); + let span = tcx.def_span(proj.def_id); + let bounds = wfcx.tcx().explicit_item_bounds(proj.def_id); let wf_obligations = bounds.iter().flat_map(|&(bound, bound_span)| { let bound = ty::EarlyBinder(bound).subst(tcx, proj.substs); let normalized_bound = wfcx.normalize(span, None, bound); diff --git a/compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs b/compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs index 2890c149b3a..6469f389bf9 100644 --- a/compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs +++ b/compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs @@ -223,7 +223,7 @@ impl<'tcx> InherentCollect<'tcx> { | ty::Tuple(..) => { self.check_primitive_impl(item.owner_id.def_id, self_ty, items, ty.span) } - ty::Projection(..) | ty::Opaque(..) | ty::Param(_) => { + ty::Alias(..) | ty::Param(_) => { let mut err = struct_span_err!( self.tcx.sess, ty.span, diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs index 72288e5bc76..0c4649cea14 100644 --- a/compiler/rustc_hir_analysis/src/collect.rs +++ b/compiler/rustc_hir_analysis/src/collect.rs @@ -17,28 +17,20 @@ use crate::astconv::AstConv; use crate::check::intrinsic::intrinsic_operation_unsafety; use crate::errors; -use rustc_ast as ast; -use rustc_ast::{MetaItemKind, NestedMetaItem}; -use rustc_attr::{list_contains_name, InlineAttr, InstructionSetAttr, OptimizeAttr}; use rustc_data_structures::captures::Captures; use rustc_data_structures::fx::{FxHashMap, FxHashSet}; use rustc_errors::{struct_span_err, Applicability, DiagnosticBuilder, ErrorGuaranteed, StashKey}; use rustc_hir as hir; -use rustc_hir::def_id::{DefId, LocalDefId, LOCAL_CRATE}; +use rustc_hir::def_id::{DefId, LocalDefId}; use rustc_hir::intravisit::{self, Visitor}; -use rustc_hir::weak_lang_items::WEAK_LANG_ITEMS; -use rustc_hir::{lang_items, GenericParamKind, LangItem, Node}; +use rustc_hir::{GenericParamKind, Node}; use rustc_middle::hir::nested_filter; -use rustc_middle::middle::codegen_fn_attrs::{CodegenFnAttrFlags, CodegenFnAttrs}; -use rustc_middle::mir::mono::Linkage; use rustc_middle::ty::query::Providers; use rustc_middle::ty::util::{Discr, IntTypeExt}; -use rustc_middle::ty::{self, AdtKind, Const, DefIdTree, IsSuggestable, ToPredicate, Ty, TyCtxt}; -use rustc_session::lint; -use rustc_session::parse::feature_err; +use rustc_middle::ty::{self, AdtKind, Const, IsSuggestable, ToPredicate, Ty, TyCtxt}; use rustc_span::symbol::{kw, sym, Ident, Symbol}; use rustc_span::Span; -use rustc_target::spec::{abi, SanitizerSet}; +use rustc_target::spec::abi; use rustc_trait_selection::traits::error_reporting::suggestions::NextTypeParamName; use std::iter; @@ -78,10 +70,7 @@ pub fn provide(providers: &mut Providers) { impl_polarity, is_foreign_item, generator_kind, - codegen_fn_attrs, - asm_target_features, collect_mod_item_types, - should_inherit_track_caller, ..*providers }; } @@ -500,7 +489,7 @@ impl<'tcx> AstConv<'tcx> for ItemCtxt<'tcx> { format!( "{}::", // Erase named lt, we want `<A as B<'_>::C`, not `<A as B<'a>::C`. - self.tcx.anonymize_late_bound_regions(poly_trait_ref).skip_binder(), + self.tcx.anonymize_bound_vars(poly_trait_ref).skip_binder(), ), Applicability::MaybeIncorrect, ); @@ -1455,797 +1444,3 @@ fn generator_kind(tcx: TyCtxt<'_>, def_id: DefId) -> Option<hir::GeneratorKind> _ => bug!("generator_kind applied to non-local def-id {:?}", def_id), } } - -fn from_target_feature( - tcx: TyCtxt<'_>, - attr: &ast::Attribute, - supported_target_features: &FxHashMap<String, Option<Symbol>>, - target_features: &mut Vec<Symbol>, -) { - let Some(list) = attr.meta_item_list() else { return }; - let bad_item = |span| { - let msg = "malformed `target_feature` attribute input"; - let code = "enable = \"..\""; - tcx.sess - .struct_span_err(span, msg) - .span_suggestion(span, "must be of the form", code, Applicability::HasPlaceholders) - .emit(); - }; - let rust_features = tcx.features(); - for item in list { - // Only `enable = ...` is accepted in the meta-item list. - if !item.has_name(sym::enable) { - bad_item(item.span()); - continue; - } - - // Must be of the form `enable = "..."` (a string). - let Some(value) = item.value_str() else { - bad_item(item.span()); - continue; - }; - - // We allow comma separation to enable multiple features. - target_features.extend(value.as_str().split(',').filter_map(|feature| { - let Some(feature_gate) = supported_target_features.get(feature) else { - let msg = - format!("the feature named `{}` is not valid for this target", feature); - let mut err = tcx.sess.struct_span_err(item.span(), &msg); - err.span_label( - item.span(), - format!("`{}` is not valid for this target", feature), - ); - if let Some(stripped) = feature.strip_prefix('+') { - let valid = supported_target_features.contains_key(stripped); - if valid { - err.help("consider removing the leading `+` in the feature name"); - } - } - err.emit(); - return None; - }; - - // Only allow features whose feature gates have been enabled. - let allowed = match feature_gate.as_ref().copied() { - Some(sym::arm_target_feature) => rust_features.arm_target_feature, - Some(sym::hexagon_target_feature) => rust_features.hexagon_target_feature, - Some(sym::powerpc_target_feature) => rust_features.powerpc_target_feature, - Some(sym::mips_target_feature) => rust_features.mips_target_feature, - Some(sym::riscv_target_feature) => rust_features.riscv_target_feature, - Some(sym::avx512_target_feature) => rust_features.avx512_target_feature, - Some(sym::sse4a_target_feature) => rust_features.sse4a_target_feature, - Some(sym::tbm_target_feature) => rust_features.tbm_target_feature, - Some(sym::wasm_target_feature) => rust_features.wasm_target_feature, - Some(sym::cmpxchg16b_target_feature) => rust_features.cmpxchg16b_target_feature, - Some(sym::movbe_target_feature) => rust_features.movbe_target_feature, - Some(sym::rtm_target_feature) => rust_features.rtm_target_feature, - Some(sym::f16c_target_feature) => rust_features.f16c_target_feature, - Some(sym::ermsb_target_feature) => rust_features.ermsb_target_feature, - Some(sym::bpf_target_feature) => rust_features.bpf_target_feature, - Some(sym::aarch64_ver_target_feature) => rust_features.aarch64_ver_target_feature, - Some(name) => bug!("unknown target feature gate {}", name), - None => true, - }; - if !allowed { - feature_err( - &tcx.sess.parse_sess, - feature_gate.unwrap(), - item.span(), - &format!("the target feature `{}` is currently unstable", feature), - ) - .emit(); - } - Some(Symbol::intern(feature)) - })); - } -} - -fn linkage_by_name(tcx: TyCtxt<'_>, def_id: LocalDefId, name: &str) -> Linkage { - use rustc_middle::mir::mono::Linkage::*; - - // Use the names from src/llvm/docs/LangRef.rst here. Most types are only - // applicable to variable declarations and may not really make sense for - // Rust code in the first place but allow them anyway and trust that the - // user knows what they're doing. Who knows, unanticipated use cases may pop - // up in the future. - // - // ghost, dllimport, dllexport and linkonce_odr_autohide are not supported - // and don't have to be, LLVM treats them as no-ops. - match name { - "appending" => Appending, - "available_externally" => AvailableExternally, - "common" => Common, - "extern_weak" => ExternalWeak, - "external" => External, - "internal" => Internal, - "linkonce" => LinkOnceAny, - "linkonce_odr" => LinkOnceODR, - "private" => Private, - "weak" => WeakAny, - "weak_odr" => WeakODR, - _ => tcx.sess.span_fatal(tcx.def_span(def_id), "invalid linkage specified"), - } -} - -fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: DefId) -> CodegenFnAttrs { - if cfg!(debug_assertions) { - let def_kind = tcx.def_kind(did); - assert!( - def_kind.has_codegen_attrs(), - "unexpected `def_kind` in `codegen_fn_attrs`: {def_kind:?}", - ); - } - - let did = did.expect_local(); - let attrs = tcx.hir().attrs(tcx.hir().local_def_id_to_hir_id(did)); - let mut codegen_fn_attrs = CodegenFnAttrs::new(); - if tcx.should_inherit_track_caller(did) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::TRACK_CALLER; - } - - let supported_target_features = tcx.supported_target_features(LOCAL_CRATE); - - let mut inline_span = None; - let mut link_ordinal_span = None; - let mut no_sanitize_span = None; - for attr in attrs.iter() { - if attr.has_name(sym::cold) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::COLD; - } else if attr.has_name(sym::rustc_allocator) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::ALLOCATOR; - } else if attr.has_name(sym::ffi_returns_twice) { - if tcx.is_foreign_item(did) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::FFI_RETURNS_TWICE; - } else { - // `#[ffi_returns_twice]` is only allowed `extern fn`s. - struct_span_err!( - tcx.sess, - attr.span, - E0724, - "`#[ffi_returns_twice]` may only be used on foreign functions" - ) - .emit(); - } - } else if attr.has_name(sym::ffi_pure) { - if tcx.is_foreign_item(did) { - if attrs.iter().any(|a| a.has_name(sym::ffi_const)) { - // `#[ffi_const]` functions cannot be `#[ffi_pure]` - struct_span_err!( - tcx.sess, - attr.span, - E0757, - "`#[ffi_const]` function cannot be `#[ffi_pure]`" - ) - .emit(); - } else { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::FFI_PURE; - } - } else { - // `#[ffi_pure]` is only allowed on foreign functions - struct_span_err!( - tcx.sess, - attr.span, - E0755, - "`#[ffi_pure]` may only be used on foreign functions" - ) - .emit(); - } - } else if attr.has_name(sym::ffi_const) { - if tcx.is_foreign_item(did) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::FFI_CONST; - } else { - // `#[ffi_const]` is only allowed on foreign functions - struct_span_err!( - tcx.sess, - attr.span, - E0756, - "`#[ffi_const]` may only be used on foreign functions" - ) - .emit(); - } - } else if attr.has_name(sym::rustc_nounwind) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::NEVER_UNWIND; - } else if attr.has_name(sym::rustc_reallocator) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::REALLOCATOR; - } else if attr.has_name(sym::rustc_deallocator) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::DEALLOCATOR; - } else if attr.has_name(sym::rustc_allocator_zeroed) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::ALLOCATOR_ZEROED; - } else if attr.has_name(sym::naked) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::NAKED; - } else if attr.has_name(sym::no_mangle) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::NO_MANGLE; - } else if attr.has_name(sym::no_coverage) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::NO_COVERAGE; - } else if attr.has_name(sym::rustc_std_internal_symbol) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::RUSTC_STD_INTERNAL_SYMBOL; - } else if attr.has_name(sym::used) { - let inner = attr.meta_item_list(); - match inner.as_deref() { - Some([item]) if item.has_name(sym::linker) => { - if !tcx.features().used_with_arg { - feature_err( - &tcx.sess.parse_sess, - sym::used_with_arg, - attr.span, - "`#[used(linker)]` is currently unstable", - ) - .emit(); - } - codegen_fn_attrs.flags |= CodegenFnAttrFlags::USED_LINKER; - } - Some([item]) if item.has_name(sym::compiler) => { - if !tcx.features().used_with_arg { - feature_err( - &tcx.sess.parse_sess, - sym::used_with_arg, - attr.span, - "`#[used(compiler)]` is currently unstable", - ) - .emit(); - } - codegen_fn_attrs.flags |= CodegenFnAttrFlags::USED; - } - Some(_) => { - tcx.sess.emit_err(errors::ExpectedUsedSymbol { span: attr.span }); - } - None => { - // Unfortunately, unconditionally using `llvm.used` causes - // issues in handling `.init_array` with the gold linker, - // but using `llvm.compiler.used` caused a nontrival amount - // of unintentional ecosystem breakage -- particularly on - // Mach-O targets. - // - // As a result, we emit `llvm.compiler.used` only on ELF - // targets. This is somewhat ad-hoc, but actually follows - // our pre-LLVM 13 behavior (prior to the ecosystem - // breakage), and seems to match `clang`'s behavior as well - // (both before and after LLVM 13), possibly because they - // have similar compatibility concerns to us. See - // https://github.com/rust-lang/rust/issues/47384#issuecomment-1019080146 - // and following comments for some discussion of this, as - // well as the comments in `rustc_codegen_llvm` where these - // flags are handled. - // - // Anyway, to be clear: this is still up in the air - // somewhat, and is subject to change in the future (which - // is a good thing, because this would ideally be a bit - // more firmed up). - let is_like_elf = !(tcx.sess.target.is_like_osx - || tcx.sess.target.is_like_windows - || tcx.sess.target.is_like_wasm); - codegen_fn_attrs.flags |= if is_like_elf { - CodegenFnAttrFlags::USED - } else { - CodegenFnAttrFlags::USED_LINKER - }; - } - } - } else if attr.has_name(sym::cmse_nonsecure_entry) { - if !matches!(tcx.fn_sig(did).abi(), abi::Abi::C { .. }) { - struct_span_err!( - tcx.sess, - attr.span, - E0776, - "`#[cmse_nonsecure_entry]` requires C ABI" - ) - .emit(); - } - if !tcx.sess.target.llvm_target.contains("thumbv8m") { - struct_span_err!(tcx.sess, attr.span, E0775, "`#[cmse_nonsecure_entry]` is only valid for targets with the TrustZone-M extension") - .emit(); - } - codegen_fn_attrs.flags |= CodegenFnAttrFlags::CMSE_NONSECURE_ENTRY; - } else if attr.has_name(sym::thread_local) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::THREAD_LOCAL; - } else if attr.has_name(sym::track_caller) { - if !tcx.is_closure(did.to_def_id()) && tcx.fn_sig(did).abi() != abi::Abi::Rust { - struct_span_err!(tcx.sess, attr.span, E0737, "`#[track_caller]` requires Rust ABI") - .emit(); - } - if tcx.is_closure(did.to_def_id()) && !tcx.features().closure_track_caller { - feature_err( - &tcx.sess.parse_sess, - sym::closure_track_caller, - attr.span, - "`#[track_caller]` on closures is currently unstable", - ) - .emit(); - } - codegen_fn_attrs.flags |= CodegenFnAttrFlags::TRACK_CALLER; - } else if attr.has_name(sym::export_name) { - if let Some(s) = attr.value_str() { - if s.as_str().contains('\0') { - // `#[export_name = ...]` will be converted to a null-terminated string, - // so it may not contain any null characters. - struct_span_err!( - tcx.sess, - attr.span, - E0648, - "`export_name` may not contain null characters" - ) - .emit(); - } - codegen_fn_attrs.export_name = Some(s); - } - } else if attr.has_name(sym::target_feature) { - if !tcx.is_closure(did.to_def_id()) - && tcx.fn_sig(did).unsafety() == hir::Unsafety::Normal - { - if tcx.sess.target.is_like_wasm || tcx.sess.opts.actually_rustdoc { - // The `#[target_feature]` attribute is allowed on - // WebAssembly targets on all functions, including safe - // ones. Other targets require that `#[target_feature]` is - // only applied to unsafe functions (pending the - // `target_feature_11` feature) because on most targets - // execution of instructions that are not supported is - // considered undefined behavior. For WebAssembly which is a - // 100% safe target at execution time it's not possible to - // execute undefined instructions, and even if a future - // feature was added in some form for this it would be a - // deterministic trap. There is no undefined behavior when - // executing WebAssembly so `#[target_feature]` is allowed - // on safe functions (but again, only for WebAssembly) - // - // Note that this is also allowed if `actually_rustdoc` so - // if a target is documenting some wasm-specific code then - // it's not spuriously denied. - } else if !tcx.features().target_feature_11 { - let mut err = feature_err( - &tcx.sess.parse_sess, - sym::target_feature_11, - attr.span, - "`#[target_feature(..)]` can only be applied to `unsafe` functions", - ); - err.span_label(tcx.def_span(did), "not an `unsafe` function"); - err.emit(); - } else { - check_target_feature_trait_unsafe(tcx, did, attr.span); - } - } - from_target_feature( - tcx, - attr, - supported_target_features, - &mut codegen_fn_attrs.target_features, - ); - } else if attr.has_name(sym::linkage) { - if let Some(val) = attr.value_str() { - let linkage = Some(linkage_by_name(tcx, did, val.as_str())); - if tcx.is_foreign_item(did) { - codegen_fn_attrs.import_linkage = linkage; - } else { - codegen_fn_attrs.linkage = linkage; - } - } - } else if attr.has_name(sym::link_section) { - if let Some(val) = attr.value_str() { - if val.as_str().bytes().any(|b| b == 0) { - let msg = format!( - "illegal null byte in link_section \ - value: `{}`", - &val - ); - tcx.sess.span_err(attr.span, &msg); - } else { - codegen_fn_attrs.link_section = Some(val); - } - } - } else if attr.has_name(sym::link_name) { - codegen_fn_attrs.link_name = attr.value_str(); - } else if attr.has_name(sym::link_ordinal) { - link_ordinal_span = Some(attr.span); - if let ordinal @ Some(_) = check_link_ordinal(tcx, attr) { - codegen_fn_attrs.link_ordinal = ordinal; - } - } else if attr.has_name(sym::no_sanitize) { - no_sanitize_span = Some(attr.span); - if let Some(list) = attr.meta_item_list() { - for item in list.iter() { - if item.has_name(sym::address) { - codegen_fn_attrs.no_sanitize |= SanitizerSet::ADDRESS; - } else if item.has_name(sym::cfi) { - codegen_fn_attrs.no_sanitize |= SanitizerSet::CFI; - } else if item.has_name(sym::kcfi) { - codegen_fn_attrs.no_sanitize |= SanitizerSet::KCFI; - } else if item.has_name(sym::memory) { - codegen_fn_attrs.no_sanitize |= SanitizerSet::MEMORY; - } else if item.has_name(sym::memtag) { - codegen_fn_attrs.no_sanitize |= SanitizerSet::MEMTAG; - } else if item.has_name(sym::shadow_call_stack) { - codegen_fn_attrs.no_sanitize |= SanitizerSet::SHADOWCALLSTACK; - } else if item.has_name(sym::thread) { - codegen_fn_attrs.no_sanitize |= SanitizerSet::THREAD; - } else if item.has_name(sym::hwaddress) { - codegen_fn_attrs.no_sanitize |= SanitizerSet::HWADDRESS; - } else { - tcx.sess - .struct_span_err(item.span(), "invalid argument for `no_sanitize`") - .note("expected one of: `address`, `cfi`, `hwaddress`, `kcfi`, `memory`, `memtag`, `shadow-call-stack`, or `thread`") - .emit(); - } - } - } - } else if attr.has_name(sym::instruction_set) { - codegen_fn_attrs.instruction_set = match attr.meta_kind() { - Some(MetaItemKind::List(ref items)) => match items.as_slice() { - [NestedMetaItem::MetaItem(set)] => { - let segments = - set.path.segments.iter().map(|x| x.ident.name).collect::<Vec<_>>(); - match segments.as_slice() { - [sym::arm, sym::a32] | [sym::arm, sym::t32] => { - if !tcx.sess.target.has_thumb_interworking { - struct_span_err!( - tcx.sess.diagnostic(), - attr.span, - E0779, - "target does not support `#[instruction_set]`" - ) - .emit(); - None - } else if segments[1] == sym::a32 { - Some(InstructionSetAttr::ArmA32) - } else if segments[1] == sym::t32 { - Some(InstructionSetAttr::ArmT32) - } else { - unreachable!() - } - } - _ => { - struct_span_err!( - tcx.sess.diagnostic(), - attr.span, - E0779, - "invalid instruction set specified", - ) - .emit(); - None - } - } - } - [] => { - struct_span_err!( - tcx.sess.diagnostic(), - attr.span, - E0778, - "`#[instruction_set]` requires an argument" - ) - .emit(); - None - } - _ => { - struct_span_err!( - tcx.sess.diagnostic(), - attr.span, - E0779, - "cannot specify more than one instruction set" - ) - .emit(); - None - } - }, - _ => { - struct_span_err!( - tcx.sess.diagnostic(), - attr.span, - E0778, - "must specify an instruction set" - ) - .emit(); - None - } - }; - } else if attr.has_name(sym::repr) { - codegen_fn_attrs.alignment = match attr.meta_item_list() { - Some(items) => match items.as_slice() { - [item] => match item.name_value_literal() { - Some((sym::align, literal)) => { - let alignment = rustc_attr::parse_alignment(&literal.kind); - - match alignment { - Ok(align) => Some(align), - Err(msg) => { - struct_span_err!( - tcx.sess.diagnostic(), - attr.span, - E0589, - "invalid `repr(align)` attribute: {}", - msg - ) - .emit(); - - None - } - } - } - _ => None, - }, - [] => None, - _ => None, - }, - None => None, - }; - } - } - - codegen_fn_attrs.inline = attrs.iter().fold(InlineAttr::None, |ia, attr| { - if !attr.has_name(sym::inline) { - return ia; - } - match attr.meta_kind() { - Some(MetaItemKind::Word) => InlineAttr::Hint, - Some(MetaItemKind::List(ref items)) => { - inline_span = Some(attr.span); - if items.len() != 1 { - struct_span_err!( - tcx.sess.diagnostic(), - attr.span, - E0534, - "expected one argument" - ) - .emit(); - InlineAttr::None - } else if list_contains_name(&items, sym::always) { - InlineAttr::Always - } else if list_contains_name(&items, sym::never) { - InlineAttr::Never - } else { - struct_span_err!( - tcx.sess.diagnostic(), - items[0].span(), - E0535, - "invalid argument" - ) - .help("valid inline arguments are `always` and `never`") - .emit(); - - InlineAttr::None - } - } - Some(MetaItemKind::NameValue(_)) => ia, - None => ia, - } - }); - - codegen_fn_attrs.optimize = attrs.iter().fold(OptimizeAttr::None, |ia, attr| { - if !attr.has_name(sym::optimize) { - return ia; - } - let err = |sp, s| struct_span_err!(tcx.sess.diagnostic(), sp, E0722, "{}", s).emit(); - match attr.meta_kind() { - Some(MetaItemKind::Word) => { - err(attr.span, "expected one argument"); - ia - } - Some(MetaItemKind::List(ref items)) => { - inline_span = Some(attr.span); - if items.len() != 1 { - err(attr.span, "expected one argument"); - OptimizeAttr::None - } else if list_contains_name(&items, sym::size) { - OptimizeAttr::Size - } else if list_contains_name(&items, sym::speed) { - OptimizeAttr::Speed - } else { - err(items[0].span(), "invalid argument"); - OptimizeAttr::None - } - } - Some(MetaItemKind::NameValue(_)) => ia, - None => ia, - } - }); - - // #73631: closures inherit `#[target_feature]` annotations - if tcx.features().target_feature_11 && tcx.is_closure(did.to_def_id()) { - let owner_id = tcx.parent(did.to_def_id()); - if tcx.def_kind(owner_id).has_codegen_attrs() { - codegen_fn_attrs - .target_features - .extend(tcx.codegen_fn_attrs(owner_id).target_features.iter().copied()); - } - } - - // If a function uses #[target_feature] it can't be inlined into general - // purpose functions as they wouldn't have the right target features - // enabled. For that reason we also forbid #[inline(always)] as it can't be - // respected. - if !codegen_fn_attrs.target_features.is_empty() { - if codegen_fn_attrs.inline == InlineAttr::Always { - if let Some(span) = inline_span { - tcx.sess.span_err( - span, - "cannot use `#[inline(always)]` with \ - `#[target_feature]`", - ); - } - } - } - - if !codegen_fn_attrs.no_sanitize.is_empty() { - if codegen_fn_attrs.inline == InlineAttr::Always { - if let (Some(no_sanitize_span), Some(inline_span)) = (no_sanitize_span, inline_span) { - let hir_id = tcx.hir().local_def_id_to_hir_id(did); - tcx.struct_span_lint_hir( - lint::builtin::INLINE_NO_SANITIZE, - hir_id, - no_sanitize_span, - "`no_sanitize` will have no effect after inlining", - |lint| lint.span_note(inline_span, "inlining requested here"), - ) - } - } - } - - if codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::NAKED) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::NO_COVERAGE; - codegen_fn_attrs.inline = InlineAttr::Never; - } - - // Weak lang items have the same semantics as "std internal" symbols in the - // sense that they're preserved through all our LTO passes and only - // strippable by the linker. - // - // Additionally weak lang items have predetermined symbol names. - if WEAK_LANG_ITEMS.iter().any(|&l| tcx.lang_items().get(l) == Some(did.to_def_id())) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::RUSTC_STD_INTERNAL_SYMBOL; - } - if let Some((name, _)) = lang_items::extract(attrs) - && let Some(lang_item) = LangItem::from_name(name) - && let Some(link_name) = lang_item.link_name() - { - codegen_fn_attrs.export_name = Some(link_name); - codegen_fn_attrs.link_name = Some(link_name); - } - check_link_name_xor_ordinal(tcx, &codegen_fn_attrs, link_ordinal_span); - - // Internal symbols to the standard library all have no_mangle semantics in - // that they have defined symbol names present in the function name. This - // also applies to weak symbols where they all have known symbol names. - if codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::RUSTC_STD_INTERNAL_SYMBOL) { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::NO_MANGLE; - } - - // Any linkage to LLVM intrinsics for now forcibly marks them all as never - // unwinds since LLVM sometimes can't handle codegen which `invoke`s - // intrinsic functions. - if let Some(name) = &codegen_fn_attrs.link_name { - if name.as_str().starts_with("llvm.") { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::NEVER_UNWIND; - } - } - - codegen_fn_attrs -} - -/// Computes the set of target features used in a function for the purposes of -/// inline assembly. -fn asm_target_features<'tcx>(tcx: TyCtxt<'tcx>, did: DefId) -> &'tcx FxHashSet<Symbol> { - let mut target_features = tcx.sess.unstable_target_features.clone(); - if tcx.def_kind(did).has_codegen_attrs() { - let attrs = tcx.codegen_fn_attrs(did); - target_features.extend(&attrs.target_features); - match attrs.instruction_set { - None => {} - Some(InstructionSetAttr::ArmA32) => { - target_features.remove(&sym::thumb_mode); - } - Some(InstructionSetAttr::ArmT32) => { - target_features.insert(sym::thumb_mode); - } - } - } - - tcx.arena.alloc(target_features) -} - -/// Checks if the provided DefId is a method in a trait impl for a trait which has track_caller -/// applied to the method prototype. -fn should_inherit_track_caller(tcx: TyCtxt<'_>, def_id: DefId) -> bool { - if let Some(impl_item) = tcx.opt_associated_item(def_id) - && let ty::AssocItemContainer::ImplContainer = impl_item.container - && let Some(trait_item) = impl_item.trait_item_def_id - { - return tcx - .codegen_fn_attrs(trait_item) - .flags - .intersects(CodegenFnAttrFlags::TRACK_CALLER); - } - - false -} - -fn check_link_ordinal(tcx: TyCtxt<'_>, attr: &ast::Attribute) -> Option<u16> { - use rustc_ast::{LitIntType, LitKind, MetaItemLit}; - if !tcx.features().raw_dylib && tcx.sess.target.arch == "x86" { - feature_err( - &tcx.sess.parse_sess, - sym::raw_dylib, - attr.span, - "`#[link_ordinal]` is unstable on x86", - ) - .emit(); - } - let meta_item_list = attr.meta_item_list(); - let meta_item_list = meta_item_list.as_deref(); - let sole_meta_list = match meta_item_list { - Some([item]) => item.lit(), - Some(_) => { - tcx.sess - .struct_span_err(attr.span, "incorrect number of arguments to `#[link_ordinal]`") - .note("the attribute requires exactly one argument") - .emit(); - return None; - } - _ => None, - }; - if let Some(MetaItemLit { kind: LitKind::Int(ordinal, LitIntType::Unsuffixed), .. }) = - sole_meta_list - { - // According to the table at https://docs.microsoft.com/en-us/windows/win32/debug/pe-format#import-header, - // the ordinal must fit into 16 bits. Similarly, the Ordinal field in COFFShortExport (defined - // in llvm/include/llvm/Object/COFFImportFile.h), which we use to communicate import information - // to LLVM for `#[link(kind = "raw-dylib"_])`, is also defined to be uint16_t. - // - // FIXME: should we allow an ordinal of 0? The MSVC toolchain has inconsistent support for this: - // both LINK.EXE and LIB.EXE signal errors and abort when given a .DEF file that specifies - // a zero ordinal. However, llvm-dlltool is perfectly happy to generate an import library - // for such a .DEF file, and MSVC's LINK.EXE is also perfectly happy to consume an import - // library produced by LLVM with an ordinal of 0, and it generates an .EXE. (I don't know yet - // if the resulting EXE runs, as I haven't yet built the necessary DLL -- see earlier comment - // about LINK.EXE failing.) - if *ordinal <= u16::MAX as u128 { - Some(*ordinal as u16) - } else { - let msg = format!("ordinal value in `link_ordinal` is too large: `{}`", &ordinal); - tcx.sess - .struct_span_err(attr.span, &msg) - .note("the value may not exceed `u16::MAX`") - .emit(); - None - } - } else { - tcx.sess - .struct_span_err(attr.span, "illegal ordinal format in `link_ordinal`") - .note("an unsuffixed integer value, e.g., `1`, is expected") - .emit(); - None - } -} - -fn check_link_name_xor_ordinal( - tcx: TyCtxt<'_>, - codegen_fn_attrs: &CodegenFnAttrs, - inline_span: Option<Span>, -) { - if codegen_fn_attrs.link_name.is_none() || codegen_fn_attrs.link_ordinal.is_none() { - return; - } - let msg = "cannot use `#[link_name]` with `#[link_ordinal]`"; - if let Some(span) = inline_span { - tcx.sess.span_err(span, msg); - } else { - tcx.sess.err(msg); - } -} - -/// Checks the function annotated with `#[target_feature]` is not a safe -/// trait method implementation, reporting an error if it is. -fn check_target_feature_trait_unsafe(tcx: TyCtxt<'_>, id: LocalDefId, attr_span: Span) { - let hir_id = tcx.hir().local_def_id_to_hir_id(id); - let node = tcx.hir().get(hir_id); - if let Node::ImplItem(hir::ImplItem { kind: hir::ImplItemKind::Fn(..), .. }) = node { - let parent_id = tcx.hir().get_parent_item(hir_id); - let parent_item = tcx.hir().expect_item(parent_id.def_id); - if let hir::ItemKind::Impl(hir::Impl { of_trait: Some(_), .. }) = parent_item.kind { - tcx.sess - .struct_span_err( - attr_span, - "`#[target_feature(..)]` cannot be applied to safe trait method", - ) - .span_label(attr_span, "cannot be applied to safe trait method") - .span_label(tcx.def_span(id), "not an `unsafe` function") - .emit(); - } - } -} diff --git a/compiler/rustc_hir_analysis/src/collect/lifetimes.rs b/compiler/rustc_hir_analysis/src/collect/lifetimes.rs index 9a7b261fffd..b4ad3467e7d 100644 --- a/compiler/rustc_hir_analysis/src/collect/lifetimes.rs +++ b/compiler/rustc_hir_analysis/src/collect/lifetimes.rs @@ -1749,7 +1749,7 @@ fn is_late_bound_map(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Option<&FxIndexSet< ty::Param(param_ty) => { self.arg_is_constrained[param_ty.index as usize] = true; } - ty::Projection(_) => return ControlFlow::Continue(()), + ty::Alias(ty::Projection, _) => return ControlFlow::Continue(()), _ => (), } t.super_visit_with(self) diff --git a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs index 45e241f4e09..79d75231e5d 100644 --- a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs @@ -75,7 +75,7 @@ fn gather_explicit_predicates_of(tcx: TyCtxt<'_>, def_id: DefId) -> ty::GenericP const NO_GENERICS: &hir::Generics<'_> = hir::Generics::empty(); - // We use an `IndexSet` to preserves order of insertion. + // We use an `IndexSet` to preserve order of insertion. // Preserving the order of insertion is important here so as not to break UI tests. let mut predicates: FxIndexSet<(ty::Predicate<'_>, Span)> = FxIndexSet::default(); @@ -97,11 +97,7 @@ fn gather_explicit_predicates_of(tcx: TyCtxt<'_>, def_id: DefId) -> ty::GenericP | ItemKind::Struct(_, ref generics) | ItemKind::Union(_, ref generics) => *generics, - ItemKind::Trait(_, _, ref generics, ..) => { - is_trait = Some(ty::TraitRef::identity(tcx, def_id)); - *generics - } - ItemKind::TraitAlias(ref generics, _) => { + ItemKind::Trait(_, _, ref generics, ..) | ItemKind::TraitAlias(ref generics, _) => { is_trait = Some(ty::TraitRef::identity(tcx, def_id)); *generics } @@ -406,14 +402,15 @@ pub(super) fn explicit_predicates_of<'tcx>( // For a predicate from a where clause to become a bound on an // associated type: // * It must use the identity substs of the item. - // * Since any generic parameters on the item are not in scope, - // this means that the item is not a GAT, and its identity - // substs are the same as the trait's. + // * We're in the scope of the trait, so we can't name any + // parameters of the GAT. That means that all we need to + // check are that the substs of the projection are the + // identity substs of the trait. // * It must be an associated type for this trait (*not* a // supertrait). - if let ty::Projection(projection) = ty.kind() { + if let ty::Alias(ty::Projection, projection) = ty.kind() { projection.substs == trait_identity_substs - && tcx.associated_item(projection.item_def_id).container_id(tcx) == def_id + && tcx.associated_item(projection.def_id).container_id(tcx) == def_id } else { false } diff --git a/compiler/rustc_hir_analysis/src/collect/type_of.rs b/compiler/rustc_hir_analysis/src/collect/type_of.rs index 9bd1715ce39..b678990f94e 100644 --- a/compiler/rustc_hir_analysis/src/collect/type_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/type_of.rs @@ -52,7 +52,7 @@ pub(super) fn opt_const_param_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Option< // Using the ItemCtxt convert the HIR for the unresolved assoc type into a // ty which is a fully resolved projection. // For the code example above, this would mean converting Self::Assoc<3> - // into a ty::Projection(<Self as Foo>::Assoc<3>) + // into a ty::Alias(ty::Projection, <Self as Foo>::Assoc<3>) let item_hir_id = tcx .hir() .parent_iter(hir_id) @@ -68,8 +68,8 @@ pub(super) fn opt_const_param_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Option< // the def_id that this query was called with. We filter to only type and const args here // as a precaution for if it's ever allowed to elide lifetimes in GAT's. It currently isn't // but it can't hurt to be safe ^^ - if let ty::Projection(projection) = ty.kind() { - let generics = tcx.generics_of(projection.item_def_id); + if let ty::Alias(ty::Projection, projection) = ty.kind() { + let generics = tcx.generics_of(projection.def_id); let arg_index = segment .args @@ -666,7 +666,7 @@ fn find_opaque_ty_constraints_for_tait(tcx: TyCtxt<'_>, def_id: LocalDefId) -> T let hir_id = tcx.hir().local_def_id_to_hir_id(def_id); let scope = tcx.hir().get_defining_scope(hir_id); - let mut locator = ConstraintLocator { def_id: def_id, tcx, found: None, typeck_types: vec![] }; + let mut locator = ConstraintLocator { def_id, tcx, found: None, typeck_types: vec![] }; debug!(?scope); @@ -803,7 +803,7 @@ fn find_opaque_ty_constraints_for_rpit( if let Some(concrete) = concrete { let scope = tcx.hir().local_def_id_to_hir_id(owner_def_id); debug!(?scope); - let mut locator = ConstraintChecker { def_id: def_id, tcx, found: concrete }; + let mut locator = ConstraintChecker { def_id, tcx, found: concrete }; match tcx.hir().get(scope) { Node::Item(it) => intravisit::walk_item(&mut locator, it), diff --git a/compiler/rustc_hir_analysis/src/constrained_generic_params.rs b/compiler/rustc_hir_analysis/src/constrained_generic_params.rs index b4057df7896..95c971c0d78 100644 --- a/compiler/rustc_hir_analysis/src/constrained_generic_params.rs +++ b/compiler/rustc_hir_analysis/src/constrained_generic_params.rs @@ -59,7 +59,7 @@ struct ParameterCollector { impl<'tcx> TypeVisitor<'tcx> for ParameterCollector { fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<Self::BreakTy> { match *t.kind() { - ty::Projection(..) if !self.include_nonconstraining => { + ty::Alias(ty::Projection, ..) if !self.include_nonconstraining => { // projections are not injective return ControlFlow::CONTINUE; } diff --git a/compiler/rustc_hir_analysis/src/errors.rs b/compiler/rustc_hir_analysis/src/errors.rs index c92ab749bc1..d383fcacb3a 100644 --- a/compiler/rustc_hir_analysis/src/errors.rs +++ b/compiler/rustc_hir_analysis/src/errors.rs @@ -52,6 +52,17 @@ pub struct LifetimesOrBoundsMismatchOnTrait { } #[derive(Diagnostic)] +#[diag(hir_analysis_async_trait_impl_should_be_async)] +pub struct AsyncTraitImplShouldBeAsync { + #[primary_span] + // #[label] + pub span: Span, + #[label(trait_item_label)] + pub trait_item_span: Option<Span>, + pub method_name: Symbol, +} + +#[derive(Diagnostic)] #[diag(hir_analysis_drop_impl_on_wrong_item, code = "E0120")] pub struct DropImplOnWrongItem { #[primary_span] @@ -254,13 +265,6 @@ pub struct ExternCrateNotIdiomatic { } #[derive(Diagnostic)] -#[diag(hir_analysis_expected_used_symbol)] -pub struct ExpectedUsedSymbol { - #[primary_span] - pub span: Span, -} - -#[derive(Diagnostic)] #[diag(hir_analysis_const_impl_for_non_const_trait)] pub struct ConstImplForNonConstTrait { #[primary_span] diff --git a/compiler/rustc_hir_analysis/src/outlives/implicit_infer.rs b/compiler/rustc_hir_analysis/src/outlives/implicit_infer.rs index 90c6edb65e4..af8d7e85158 100644 --- a/compiler/rustc_hir_analysis/src/outlives/implicit_infer.rs +++ b/compiler/rustc_hir_analysis/src/outlives/implicit_infer.rs @@ -196,13 +196,13 @@ fn insert_required_predicates_to_be_wf<'tcx>( } } - ty::Projection(obj) => { + ty::Alias(ty::Projection, obj) => { // This corresponds to `<T as Foo<'a>>::Bar`. In this case, we should use the // explicit predicates as well. debug!("Projection"); check_explicit_predicates( tcx, - tcx.parent(obj.item_def_id), + tcx.parent(obj.def_id), obj.substs, required_predicates, explicit_map, diff --git a/compiler/rustc_hir_analysis/src/outlives/utils.rs b/compiler/rustc_hir_analysis/src/outlives/utils.rs index 0409c7081dc..b51b740d08e 100644 --- a/compiler/rustc_hir_analysis/src/outlives/utils.rs +++ b/compiler/rustc_hir_analysis/src/outlives/utils.rs @@ -90,7 +90,7 @@ pub(crate) fn insert_outlives_predicate<'tcx>( // ``` // // Here we want to add an explicit `where <T as Iterator>::Item: 'a`. - let ty: Ty<'tcx> = tcx.mk_projection(proj_ty.item_def_id, proj_ty.substs); + let ty: Ty<'tcx> = tcx.mk_projection(proj_ty.def_id, proj_ty.substs); required_predicates .entry(ty::OutlivesPredicate(ty.into(), outlived_region)) .or_insert(span); diff --git a/compiler/rustc_hir_analysis/src/variance/constraints.rs b/compiler/rustc_hir_analysis/src/variance/constraints.rs index 6ce0c18bf45..5e4d82b6fd5 100644 --- a/compiler/rustc_hir_analysis/src/variance/constraints.rs +++ b/compiler/rustc_hir_analysis/src/variance/constraints.rs @@ -249,14 +249,10 @@ impl<'a, 'tcx> ConstraintContext<'a, 'tcx> { self.add_constraints_from_substs(current, def.did(), substs, variance); } - ty::Projection(ref data) => { + ty::Alias(_, ref data) => { self.add_constraints_from_invariant_substs(current, data.substs, variance); } - ty::Opaque(_, substs) => { - self.add_constraints_from_invariant_substs(current, substs, variance); - } - ty::Dynamic(data, r, _) => { // The type `Foo<T+'a>` is contravariant w/r/t `'a`: let contra = self.contravariant(variance); diff --git a/compiler/rustc_hir_analysis/src/variance/mod.rs b/compiler/rustc_hir_analysis/src/variance/mod.rs index 8b2719c2f8a..24008f88814 100644 --- a/compiler/rustc_hir_analysis/src/variance/mod.rs +++ b/compiler/rustc_hir_analysis/src/variance/mod.rs @@ -111,11 +111,13 @@ fn variance_of_opaque(tcx: TyCtxt<'_>, item_def_id: LocalDefId) -> &[ty::Varianc #[instrument(level = "trace", skip(self), ret)] fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<Self::BreakTy> { match t.kind() { - ty::Opaque(def_id, substs) => self.visit_opaque(*def_id, substs), - ty::Projection(proj) - if self.tcx.def_kind(proj.item_def_id) == DefKind::ImplTraitPlaceholder => + ty::Alias(_, ty::AliasTy { def_id, substs, .. }) + if matches!( + self.tcx.def_kind(*def_id), + DefKind::OpaqueTy | DefKind::ImplTraitPlaceholder + ) => { - self.visit_opaque(proj.item_def_id, proj.substs) + self.visit_opaque(*def_id, substs) } _ => t.super_visit_with(self), } @@ -158,7 +160,7 @@ fn variance_of_opaque(tcx: TyCtxt<'_>, item_def_id: LocalDefId) -> &[ty::Varianc // instead of requiring an additional `+ 'a`. match pred.kind().skip_binder() { ty::PredicateKind::Clause(ty::Clause::Trait(ty::TraitPredicate { - trait_ref: ty::TraitRef { def_id: _, substs }, + trait_ref: ty::TraitRef { def_id: _, substs, .. }, constness: _, polarity: _, })) => { @@ -167,7 +169,7 @@ fn variance_of_opaque(tcx: TyCtxt<'_>, item_def_id: LocalDefId) -> &[ty::Varianc } } ty::PredicateKind::Clause(ty::Clause::Projection(ty::ProjectionPredicate { - projection_ty: ty::ProjectionTy { substs, item_def_id: _ }, + projection_ty: ty::AliasTy { substs, .. }, term, })) => { for subst in &substs[1..] { diff --git a/compiler/rustc_hir_pretty/src/lib.rs b/compiler/rustc_hir_pretty/src/lib.rs index ef98c4ba54c..29a6902ccb0 100644 --- a/compiler/rustc_hir_pretty/src/lib.rs +++ b/compiler/rustc_hir_pretty/src/lib.rs @@ -1757,7 +1757,6 @@ impl<'a> State<'a> { self.print_qpath(qpath, true); self.popen(); if let Some(ddpos) = ddpos.as_opt_usize() { - let ddpos = ddpos as usize; self.commasep(Inconsistent, &elts[..ddpos], |s, p| s.print_pat(p)); if ddpos != 0 { self.word_space(","); diff --git a/compiler/rustc_hir_typeck/src/_match.rs b/compiler/rustc_hir_typeck/src/_match.rs index e25a9e9036a..ab12cae4e2b 100644 --- a/compiler/rustc_hir_typeck/src/_match.rs +++ b/compiler/rustc_hir_typeck/src/_match.rs @@ -212,7 +212,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { self.can_coerce(arm_ty, ret_ty) && prior_arm.map_or(true, |(_, ty, _)| self.can_coerce(ty, ret_ty)) // The match arms need to unify for the case of `impl Trait`. - && !matches!(ret_ty.kind(), ty::Opaque(..)) + && !matches!(ret_ty.kind(), ty::Alias(ty::Opaque, ..)) } _ => false, }; @@ -518,7 +518,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let substs = sig.output().walk().find_map(|arg| { if let ty::GenericArgKind::Type(ty) = arg.unpack() - && let ty::Opaque(def_id, substs) = *ty.kind() + && let ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) = *ty.kind() && def_id == rpit_def_id { Some(substs) @@ -542,15 +542,12 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) => { assert_eq!(trait_pred.trait_ref.self_ty(), opaque_ty); ty::PredicateKind::Clause(ty::Clause::Trait( - trait_pred.with_self_type(self.tcx, ty), + trait_pred.with_self_ty(self.tcx, ty), )) } ty::PredicateKind::Clause(ty::Clause::Projection(mut proj_pred)) => { assert_eq!(proj_pred.projection_ty.self_ty(), opaque_ty); - proj_pred.projection_ty.substs = self.tcx.mk_substs_trait( - ty, - proj_pred.projection_ty.substs.iter().skip(1), - ); + proj_pred = proj_pred.with_self_ty(self.tcx, ty); ty::PredicateKind::Clause(ty::Clause::Projection(proj_pred)) } _ => continue, diff --git a/compiler/rustc_hir_typeck/src/cast.rs b/compiler/rustc_hir_typeck/src/cast.rs index 890a068a7be..042a50f2fd4 100644 --- a/compiler/rustc_hir_typeck/src/cast.rs +++ b/compiler/rustc_hir_typeck/src/cast.rs @@ -38,7 +38,6 @@ use rustc_middle::mir::Mutability; use rustc_middle::ty::adjustment::AllowTwoPhase; use rustc_middle::ty::cast::{CastKind, CastTy}; use rustc_middle::ty::error::TypeError; -use rustc_middle::ty::subst::SubstsRef; use rustc_middle::ty::{self, Ty, TypeAndMut, TypeVisitable, VariantDef}; use rustc_session::lint; use rustc_session::Session; @@ -75,10 +74,8 @@ enum PointerKind<'tcx> { VTable(Option<DefId>), /// Slice Length, - /// The unsize info of this projection - OfProjection(ty::ProjectionTy<'tcx>), - /// The unsize info of this opaque ty - OfOpaque(DefId, SubstsRef<'tcx>), + /// The unsize info of this projection or opaque type + OfAlias(ty::AliasTy<'tcx>), /// The unsize info of this parameter OfParam(ty::ParamTy), } @@ -118,8 +115,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // Pointers to foreign types are thin, despite being unsized ty::Foreign(..) => Some(PointerKind::Thin), // We should really try to normalize here. - ty::Projection(pi) => Some(PointerKind::OfProjection(pi)), - ty::Opaque(def_id, substs) => Some(PointerKind::OfOpaque(def_id, substs)), + ty::Alias(_, pi) => Some(PointerKind::OfAlias(pi)), ty::Param(p) => Some(PointerKind::OfParam(p)), // Insufficient type information. ty::Placeholder(..) | ty::Bound(..) | ty::Infer(_) => None, @@ -851,13 +847,15 @@ impl<'a, 'tcx> CastCheck<'tcx> { (Int(_) | Float, Int(_) | Float) => Ok(CastKind::NumericCast), - (_, DynStar) | (DynStar, _) => { + (_, DynStar) => { if fcx.tcx.features().dyn_star { bug!("should be handled by `try_coerce`") } else { Err(CastError::IllegalCast) } } + + (DynStar, _) => Err(CastError::IllegalCast), } } @@ -976,11 +974,9 @@ impl<'a, 'tcx> CastCheck<'tcx> { Some(PointerKind::Thin) => Ok(CastKind::AddrPtrCast), Some(PointerKind::VTable(_)) => Err(CastError::IntToFatCast(Some("a vtable"))), Some(PointerKind::Length) => Err(CastError::IntToFatCast(Some("a length"))), - Some( - PointerKind::OfProjection(_) - | PointerKind::OfOpaque(_, _) - | PointerKind::OfParam(_), - ) => Err(CastError::IntToFatCast(None)), + Some(PointerKind::OfAlias(_) | PointerKind::OfParam(_)) => { + Err(CastError::IntToFatCast(None)) + } } } diff --git a/compiler/rustc_hir_typeck/src/closure.rs b/compiler/rustc_hir_typeck/src/closure.rs index 429cb60ba2b..5bd02dff73b 100644 --- a/compiler/rustc_hir_typeck/src/closure.rs +++ b/compiler/rustc_hir_typeck/src/closure.rs @@ -167,9 +167,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { expected_ty: Ty<'tcx>, ) -> (Option<ExpectedSig<'tcx>>, Option<ty::ClosureKind>) { match *expected_ty.kind() { - ty::Opaque(def_id, substs) => self.deduce_signature_from_predicates( - self.tcx.bound_explicit_item_bounds(def_id).subst_iter_copied(self.tcx, substs), - ), + ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => self + .deduce_signature_from_predicates( + self.tcx.bound_explicit_item_bounds(def_id).subst_iter_copied(self.tcx, substs), + ), ty::Dynamic(ref object_type, ..) => { let sig = object_type.projection_bounds().find_map(|pb| { let pb = pb.with_self_ty(self.tcx, self.tcx.types.trait_object_dummy_self); @@ -425,7 +426,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // `deduce_expectations_from_expected_type` introduces // late-bound lifetimes defined elsewhere, which we now // anonymize away, so as not to confuse the user. - let bound_sig = self.tcx.anonymize_late_bound_regions(bound_sig); + let bound_sig = self.tcx.anonymize_bound_vars(bound_sig); let closure_sigs = self.closure_sigs(expr_def_id, body, bound_sig); @@ -677,17 +678,17 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { get_future_output(obligation.predicate, obligation.cause.span) })? } - ty::Opaque(def_id, substs) => self + ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => self .tcx .bound_explicit_item_bounds(def_id) .subst_iter_copied(self.tcx, substs) .find_map(|(p, s)| get_future_output(p, s))?, ty::Error(_) => return None, - ty::Projection(proj) - if self.tcx.def_kind(proj.item_def_id) == DefKind::ImplTraitPlaceholder => + ty::Alias(ty::Projection, proj) + if self.tcx.def_kind(proj.def_id) == DefKind::ImplTraitPlaceholder => { self.tcx - .bound_explicit_item_bounds(proj.item_def_id) + .bound_explicit_item_bounds(proj.def_id) .subst_iter_copied(self.tcx, proj.substs) .find_map(|(p, s)| get_future_output(p, s))? } @@ -743,11 +744,11 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // The `Future` trait has only one associated item, `Output`, // so check that this is what we see. let output_assoc_item = self.tcx.associated_item_def_ids(future_trait)[0]; - if output_assoc_item != predicate.projection_ty.item_def_id { + if output_assoc_item != predicate.projection_ty.def_id { span_bug!( cause_span, "projecting associated item `{:?}` from future, which is not Output `{:?}`", - predicate.projection_ty.item_def_id, + predicate.projection_ty.def_id, output_assoc_item, ); } diff --git a/compiler/rustc_hir_typeck/src/coercion.rs b/compiler/rustc_hir_typeck/src/coercion.rs index f0b349f0c98..36cf4791492 100644 --- a/compiler/rustc_hir_typeck/src/coercion.rs +++ b/compiler/rustc_hir_typeck/src/coercion.rs @@ -1805,7 +1805,7 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> { { let ty = <dyn AstConv<'_>>::ast_ty_to_ty(fcx, ty); // Get the `impl Trait`'s `DefId`. - if let ty::Opaque(def_id, _) = ty.kind() + if let ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }) = ty.kind() // Get the `impl Trait`'s `Item` so that we can get its trait bounds and // get the `Trait`'s `DefId`. && let hir::ItemKind::OpaqueTy(hir::OpaqueTy { bounds, .. }) = diff --git a/compiler/rustc_hir_typeck/src/expr.rs b/compiler/rustc_hir_typeck/src/expr.rs index ed87b94a040..866090260b2 100644 --- a/compiler/rustc_hir_typeck/src/expr.rs +++ b/compiler/rustc_hir_typeck/src/expr.rs @@ -2391,7 +2391,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ty::Param(param_ty) => { self.point_at_param_definition(&mut err, param_ty); } - ty::Opaque(_, _) => { + ty::Alias(ty::Opaque, _) => { self.suggest_await_on_field_access(&mut err, ident, base, base_ty.peel_refs()); } _ => {} diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs index 952d2726259..1a4e6bf7638 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs @@ -716,7 +716,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { if formal_ret.has_infer_types() { for ty in ret_ty.walk() { if let ty::subst::GenericArgKind::Type(ty) = ty.unpack() - && let ty::Opaque(def_id, _) = *ty.kind() + && let ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }) = *ty.kind() && let Some(def_id) = def_id.as_local() && self.opaque_type_origin(def_id, DUMMY_SP).is_some() { return None; diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs index 93618c61417..8e520e563ff 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs @@ -2124,7 +2124,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } } } - ty::Opaque(new_def_id, _) + ty::Alias(ty::Opaque, ty::AliasTy { def_id: new_def_id, .. }) | ty::Closure(new_def_id, _) | ty::FnDef(new_def_id, _) => { def_id = new_def_id; @@ -2132,19 +2132,15 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { _ => { // Look for a user-provided impl of a `Fn` trait, and point to it. let new_def_id = self.probe(|_| { - let trait_ref = ty::TraitRef::new( + let trait_ref = self.tcx.mk_trait_ref( call_kind.to_def_id(self.tcx), - self.tcx.mk_substs( - [ - ty::GenericArg::from(callee_ty), - self.next_ty_var(TypeVariableOrigin { - kind: TypeVariableOriginKind::MiscVariable, - span: rustc_span::DUMMY_SP, - }) - .into(), - ] - .into_iter(), - ), + [ + callee_ty, + self.next_ty_var(TypeVariableOrigin { + kind: TypeVariableOriginKind::MiscVariable, + span: rustc_span::DUMMY_SP, + }), + ], ); let obligation = traits::Obligation::new( self.tcx, @@ -2217,7 +2213,7 @@ fn find_param_in_ty<'tcx>(ty: Ty<'tcx>, param_to_point_at: ty::GenericArg<'tcx>) if arg == param_to_point_at { return true; } else if let ty::GenericArgKind::Type(ty) = arg.unpack() - && let ty::Projection(..) = ty.kind() + && let ty::Alias(ty::Projection, ..) = ty.kind() { // This logic may seem a bit strange, but typically when // we have a projection type in a function signature, the diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs index 4f92477b5d8..407d6ac8544 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs @@ -13,7 +13,9 @@ use rustc_hir_analysis::astconv::AstConv; use rustc_infer::infer; use rustc_infer::traits::{self, StatementAsExpression}; use rustc_middle::lint::in_external_macro; -use rustc_middle::ty::{self, Binder, DefIdTree, IsSuggestable, ToPredicate, Ty}; +use rustc_middle::ty::{ + self, suggest_constraining_type_params, Binder, DefIdTree, IsSuggestable, ToPredicate, Ty, +}; use rustc_session::errors::ExprParenthesesNeeded; use rustc_span::symbol::sym; use rustc_span::Span; @@ -174,10 +176,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let fn_sig = substs.as_closure().sig(); Some((DefIdOrName::DefId(def_id), fn_sig.output(), fn_sig.inputs().map_bound(|inputs| &inputs[1..]))) } - ty::Opaque(def_id, substs) => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => { self.tcx.bound_item_bounds(def_id).subst(self.tcx, substs).iter().find_map(|pred| { if let ty::PredicateKind::Clause(ty::Clause::Projection(proj)) = pred.kind().skip_binder() - && Some(proj.projection_ty.item_def_id) == self.tcx.lang_items().fn_once_output() + && Some(proj.projection_ty.def_id) == self.tcx.lang_items().fn_once_output() // args tuple will always be substs[1] && let ty::Tuple(args) = proj.projection_ty.substs.type_at(1).kind() { @@ -194,7 +196,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ty::Dynamic(data, _, ty::Dyn) => { data.iter().find_map(|pred| { if let ty::ExistentialPredicate::Projection(proj) = pred.skip_binder() - && Some(proj.item_def_id) == self.tcx.lang_items().fn_once_output() + && Some(proj.def_id) == self.tcx.lang_items().fn_once_output() // for existential projection, substs are shifted over by 1 && let ty::Tuple(args) = proj.substs.type_at(0).kind() { @@ -212,7 +214,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let def_id = self.tcx.generics_of(self.body_id.owner).type_param(¶m, self.tcx).def_id; self.tcx.predicates_of(self.body_id.owner).predicates.iter().find_map(|(pred, _)| { if let ty::PredicateKind::Clause(ty::Clause::Projection(proj)) = pred.kind().skip_binder() - && Some(proj.projection_ty.item_def_id) == self.tcx.lang_items().fn_once_output() + && Some(proj.projection_ty.def_id) == self.tcx.lang_items().fn_once_output() && proj.projection_ty.self_ty() == found // args tuple will always be substs[1] && let ty::Tuple(args) = proj.projection_ty.substs.type_at(1).kind() @@ -1276,18 +1278,14 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { && !results.expr_adjustments(callee_expr).iter().any(|adj| matches!(adj.kind, ty::adjustment::Adjust::Deref(..))) // Check that we're in fact trying to clone into the expected type && self.can_coerce(*pointee_ty, expected_ty) + && let trait_ref = ty::Binder::dummy(self.tcx.mk_trait_ref(clone_trait_did, [expected_ty])) // And the expected type doesn't implement `Clone` - && !self.predicate_must_hold_considering_regions(&traits::Obligation { - cause: traits::ObligationCause::dummy(), - param_env: self.param_env, - recursion_depth: 0, - predicate: ty::Binder::dummy(ty::TraitRef { - def_id: clone_trait_did, - substs: self.tcx.mk_substs([expected_ty.into()].iter()), - }) - .without_const() - .to_predicate(self.tcx), - }) + && !self.predicate_must_hold_considering_regions(&traits::Obligation::new( + self.tcx, + traits::ObligationCause::dummy(), + self.param_env, + trait_ref, + )) { diag.span_note( callee_expr.span, @@ -1295,6 +1293,19 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { "`{expected_ty}` does not implement `Clone`, so `{found_ty}` was cloned instead" ), ); + let owner = self.tcx.hir().enclosing_body_owner(expr.hir_id); + if let ty::Param(param) = expected_ty.kind() + && let Some(generics) = self.tcx.hir().get_generics(owner) + { + suggest_constraining_type_params( + self.tcx, + generics, + diag, + vec![(param.name.as_str(), "Clone", Some(clone_trait_did))].into_iter(), + ); + } else { + self.suggest_derive(diag, &[(trait_ref.to_predicate(self.tcx), None, None)]); + } } } diff --git a/compiler/rustc_hir_typeck/src/generator_interior/mod.rs b/compiler/rustc_hir_typeck/src/generator_interior/mod.rs index 3b1518ff79b..93f2ceed777 100644 --- a/compiler/rustc_hir_typeck/src/generator_interior/mod.rs +++ b/compiler/rustc_hir_typeck/src/generator_interior/mod.rs @@ -563,7 +563,7 @@ fn check_must_not_suspend_ty<'tcx>( } ty::Adt(def, _) => check_must_not_suspend_def(fcx.tcx, def.did(), hir_id, data), // FIXME: support adding the attribute to TAITs - ty::Opaque(def, _) => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id: def, .. }) => { let mut has_emitted = false; for &(predicate, _) in fcx.tcx.explicit_item_bounds(def) { // We only look at the `DefId`, so it is safe to skip the binder here. diff --git a/compiler/rustc_hir_typeck/src/method/mod.rs b/compiler/rustc_hir_typeck/src/method/mod.rs index b15c086ffad..3f3af53d199 100644 --- a/compiler/rustc_hir_typeck/src/method/mod.rs +++ b/compiler/rustc_hir_typeck/src/method/mod.rs @@ -209,7 +209,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ProbeScope::TraitsInScope, ) { Ok(ref new_pick) if pick.differs_from(new_pick) => { - needs_mut = true; + needs_mut = new_pick.self_ty.ref_mutability() != self_ty.ref_mutability(); } _ => {} } @@ -285,7 +285,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { self.var_for_def(span, param) }); - let trait_ref = ty::TraitRef::new(trait_def_id, substs); + let trait_ref = self.tcx.mk_trait_ref(trait_def_id, substs); // Construct an obligation let poly_trait_ref = ty::Binder::dummy(trait_ref); @@ -326,7 +326,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { self.var_for_def(span, param) }); - let trait_ref = ty::TraitRef::new(trait_def_id, substs); + let trait_ref = self.tcx.mk_trait_ref(trait_def_id, substs); // Construct an obligation let poly_trait_ref = ty::Binder::dummy(trait_ref); diff --git a/compiler/rustc_hir_typeck/src/method/probe.rs b/compiler/rustc_hir_typeck/src/method/probe.rs index 070359e71be..b9e7830bf07 100644 --- a/compiler/rustc_hir_typeck/src/method/probe.rs +++ b/compiler/rustc_hir_typeck/src/method/probe.rs @@ -920,7 +920,7 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> { ) { debug!("assemble_extension_candidates_for_trait(trait_def_id={:?})", trait_def_id); let trait_substs = self.fresh_item_substs(trait_def_id); - let trait_ref = ty::TraitRef::new(trait_def_id, trait_substs); + let trait_ref = self.tcx.mk_trait_ref(trait_def_id, trait_substs); if self.tcx.is_trait_alias(trait_def_id) { // For trait aliases, assume all supertraits are relevant. diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs index db93cfab2c0..d40a66715a2 100644 --- a/compiler/rustc_hir_typeck/src/method/suggest.rs +++ b/compiler/rustc_hir_typeck/src/method/suggest.rs @@ -25,7 +25,7 @@ use rustc_middle::infer::unify_key::{ConstVariableOrigin, ConstVariableOriginKin use rustc_middle::traits::util::supertraits; use rustc_middle::ty::fast_reject::DeepRejectCtxt; use rustc_middle::ty::fast_reject::{simplify_type, TreatParams}; -use rustc_middle::ty::print::with_crate_prefix; +use rustc_middle::ty::print::{with_crate_prefix, with_forced_trimmed_paths}; use rustc_middle::ty::{self, DefIdTree, GenericArgKind, Ty, TyCtxt, TypeVisitable}; use rustc_middle::ty::{IsSuggestable, ToPolyTraitRef}; use rustc_span::symbol::{kw, sym, Ident}; @@ -270,7 +270,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let tcx = self.tcx; let rcvr_ty = self.resolve_vars_if_possible(rcvr_ty); - let ty_str = self.ty_to_string(rcvr_ty); + let ty_str = with_forced_trimmed_paths!(self.ty_to_string(rcvr_ty)); let is_method = mode == Mode::MethodCall; let item_kind = if is_method { "method" @@ -557,15 +557,16 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { .chain(projection_ty.substs.iter().skip(1)), ); - let quiet_projection_ty = ty::ProjectionTy { - substs: substs_with_infer_self, - item_def_id: projection_ty.item_def_id, - }; + let quiet_projection_ty = + tcx.mk_alias_ty(projection_ty.def_id, substs_with_infer_self); let term = pred.skip_binder().term; let obligation = format!("{} = {}", projection_ty, term); - let quiet = format!("{} = {}", quiet_projection_ty, term); + let quiet = with_forced_trimmed_paths!(format!( + "{} = {}", + quiet_projection_ty, term + )); bound_span_label(projection_ty.self_ty(), &obligation, &quiet); Some((obligation, projection_ty.self_ty())) @@ -575,7 +576,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let self_ty = p.self_ty(); let path = p.print_only_trait_path(); let obligation = format!("{}: {}", self_ty, path); - let quiet = format!("_: {}", path); + let quiet = with_forced_trimmed_paths!(format!("_: {}", path)); bound_span_label(self_ty, &obligation, &quiet); Some((obligation, self_ty)) } @@ -688,6 +689,16 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let entry = spanned_predicates.entry(spans); entry.or_insert_with(|| (path, tr_self_ty, Vec::new())).2.push(p); } + Some(Node::Item(hir::Item { + kind: hir::ItemKind::Trait(rustc_ast::ast::IsAuto::Yes, ..), + span: item_span, + .. + })) => { + tcx.sess.delay_span_bug( + *item_span, + "auto trait is invoked with no method error, but no error reported?", + ); + } Some(_) => unreachable!(), None => (), } @@ -798,7 +809,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { (None, None) }; let primary_message = primary_message.unwrap_or_else(|| format!( - "the {item_kind} `{item_name}` exists for {actual_prefix} `{ty_str}`, but its trait bounds were not satisfied" + "the {item_kind} `{item_name}` exists for {actual_prefix} `{ty_str}`, \ + but its trait bounds were not satisfied" )); err.set_primary_message(&primary_message); if let Some(label) = label { @@ -895,7 +907,14 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } } } else { - err.span_label(span, format!("{item_kind} cannot be called on `{ty_str}` due to unsatisfied trait bounds")); + let ty_str = if ty_str.len() > 50 { + String::new() + } else { + format!("on `{ty_str}` ") + }; + err.span_label(span, format!( + "{item_kind} cannot be called {ty_str}due to unsatisfied trait bounds" + )); } }; @@ -1843,7 +1862,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { self.suggest_derive(err, &preds); } - fn suggest_derive( + pub fn suggest_derive( &self, err: &mut Diagnostic, unsatisfied_predicates: &[( @@ -1853,7 +1872,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { )], ) { let mut derives = Vec::<(String, Span, Symbol)>::new(); - let mut traits = Vec::<Span>::new(); + let mut traits = Vec::new(); for (pred, _, _) in unsatisfied_predicates { let ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) = pred.kind().skip_binder() else { continue }; let adt = match trait_pred.self_ty().ty_adt_def() { @@ -1892,10 +1911,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } derives.push((self_name, self_span, diagnostic_name)); } else { - traits.push(self.tcx.def_span(trait_pred.def_id())); + traits.push(trait_pred.def_id()); } } else { - traits.push(self.tcx.def_span(trait_pred.def_id())); + traits.push(trait_pred.def_id()); } } traits.sort(); @@ -1918,10 +1937,23 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let len = traits.len(); if len > 0 { - let span: MultiSpan = traits.into(); + let span = + MultiSpan::from_spans(traits.iter().map(|&did| self.tcx.def_span(did)).collect()); + let mut names = format!("`{}`", self.tcx.def_path_str(traits[0])); + for (i, &did) in traits.iter().enumerate().skip(1) { + if len > 2 { + names.push_str(", "); + } + if i == len - 1 { + names.push_str(" and "); + } + names.push('`'); + names.push_str(&self.tcx.def_path_str(did)); + names.push('`'); + } err.span_note( span, - &format!("the following trait{} must be implemented", pluralize!(len),), + &format!("the trait{} {} must be implemented", pluralize!(len), names), ); } @@ -1969,7 +2001,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { | ty::Float(_) | ty::Adt(_, _) | ty::Str - | ty::Projection(_) + | ty::Alias(ty::Projection, _) | ty::Param(_) => format!("{deref_ty}"), // we need to test something like <&[_]>::len or <(&[u32])>::len // and Vec::function(); @@ -2269,7 +2301,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { t.def_id() == info.def_id } ty::PredicateKind::Clause(ty::Clause::Projection(p)) => { - p.projection_ty.item_def_id == info.def_id + p.projection_ty.def_id == info.def_id } _ => false, } diff --git a/compiler/rustc_hir_typeck/src/writeback.rs b/compiler/rustc_hir_typeck/src/writeback.rs index 58ced6a1d3b..bb956ddc780 100644 --- a/compiler/rustc_hir_typeck/src/writeback.rs +++ b/compiler/rustc_hir_typeck/src/writeback.rs @@ -546,7 +546,7 @@ impl<'cx, 'tcx> WritebackCx<'cx, 'tcx> { impl<'tcx> ty::TypeVisitor<'tcx> for RecursionChecker { type BreakTy = (); fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<Self::BreakTy> { - if let ty::Opaque(def_id, _) = *t.kind() { + if let ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }) = *t.kind() { if def_id == self.def_id.to_def_id() { return ControlFlow::Break(()); } diff --git a/compiler/rustc_index/src/bit_set.rs b/compiler/rustc_index/src/bit_set.rs index 777112442f0..686cb6dac49 100644 --- a/compiler/rustc_index/src/bit_set.rs +++ b/compiler/rustc_index/src/bit_set.rs @@ -209,7 +209,7 @@ impl<T: Idx> BitSet<T> { self.words[start_word_index] |= !(start_mask - 1); // And all trailing bits (i.e. from 0..=end) in the end word, // including the end. - self.words[end_word_index] |= end_mask | end_mask - 1; + self.words[end_word_index] |= end_mask | (end_mask - 1); } else { self.words[start_word_index] |= end_mask | (end_mask - start_mask); } diff --git a/compiler/rustc_infer/src/errors/mod.rs b/compiler/rustc_infer/src/errors/mod.rs index 74c4c65cc17..c4f11472d55 100644 --- a/compiler/rustc_infer/src/errors/mod.rs +++ b/compiler/rustc_infer/src/errors/mod.rs @@ -517,6 +517,6 @@ pub struct MismatchedStaticLifetime<'a> { pub expl: Option<note_and_explain::RegionExplanation<'a>>, #[subdiagnostic] pub does_not_outlive_static_from_impl: DoesNotOutliveStaticFromImpl, - #[subdiagnostic(eager)] + #[subdiagnostic] pub implicit_static_lifetimes: Vec<ImplicitStaticLifetimeSubdiag>, } diff --git a/compiler/rustc_infer/src/infer/at.rs b/compiler/rustc_infer/src/infer/at.rs index 4429e4f4362..e9186540a7b 100644 --- a/compiler/rustc_infer/src/infer/at.rs +++ b/compiler/rustc_infer/src/infer/at.rs @@ -411,7 +411,7 @@ impl<'tcx> ToTrace<'tcx> for ty::PolyTraitRef<'tcx> { } } -impl<'tcx> ToTrace<'tcx> for ty::ProjectionTy<'tcx> { +impl<'tcx> ToTrace<'tcx> for ty::AliasTy<'tcx> { fn to_trace( tcx: TyCtxt<'tcx>, cause: &ObligationCause<'tcx>, @@ -419,8 +419,8 @@ impl<'tcx> ToTrace<'tcx> for ty::ProjectionTy<'tcx> { a: Self, b: Self, ) -> TypeTrace<'tcx> { - let a_ty = tcx.mk_projection(a.item_def_id, a.substs); - let b_ty = tcx.mk_projection(b.item_def_id, b.substs); + let a_ty = tcx.mk_projection(a.def_id, a.substs); + let b_ty = tcx.mk_projection(b.def_id, b.substs); TypeTrace { cause: cause.clone(), values: Terms(ExpectedFound::new(a_is_expected, a_ty.into(), b_ty.into())), diff --git a/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs b/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs index 3dc0d60b1eb..ec5221379d2 100644 --- a/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs +++ b/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs @@ -453,10 +453,9 @@ impl<'cx, 'tcx> TypeFolder<'tcx> for Canonicalizer<'cx, 'tcx> { | ty::Dynamic(..) | ty::Never | ty::Tuple(..) - | ty::Projection(..) + | ty::Alias(..) | ty::Foreign(..) - | ty::Param(..) - | ty::Opaque(..) => { + | ty::Param(..) => { if t.flags().intersects(self.needs_canonical_flags) { t.super_fold_with(self) } else { diff --git a/compiler/rustc_infer/src/infer/combine.rs b/compiler/rustc_infer/src/infer/combine.rs index cf895ed0d3e..9a1c49c1aa6 100644 --- a/compiler/rustc_infer/src/infer/combine.rs +++ b/compiler/rustc_infer/src/infer/combine.rs @@ -675,7 +675,7 @@ impl<'tcx> TypeRelation<'tcx> for Generalizer<'_, 'tcx> { // relatable. Ok(t) } - ty::Opaque(def_id, substs) => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => { let s = self.relate(substs, substs)?; Ok(if s == substs { t } else { self.infcx.tcx.mk_opaque(def_id, s) }) } diff --git a/compiler/rustc_infer/src/infer/equate.rs b/compiler/rustc_infer/src/infer/equate.rs index 8682f4d3b7a..46e7813d99e 100644 --- a/compiler/rustc_infer/src/infer/equate.rs +++ b/compiler/rustc_infer/src/infer/equate.rs @@ -100,11 +100,15 @@ impl<'tcx> TypeRelation<'tcx> for Equate<'_, '_, 'tcx> { self.fields.instantiate(a, RelationDir::EqTo, b_id, self.a_is_expected)?; } - (&ty::Opaque(a_def_id, _), &ty::Opaque(b_def_id, _)) if a_def_id == b_def_id => { + ( + &ty::Alias(ty::Opaque, ty::AliasTy { def_id: a_def_id, .. }), + &ty::Alias(ty::Opaque, ty::AliasTy { def_id: b_def_id, .. }), + ) if a_def_id == b_def_id => { self.fields.infcx.super_combine_tys(self, a, b)?; } - (&ty::Opaque(did, ..), _) | (_, &ty::Opaque(did, ..)) - if self.fields.define_opaque_types && did.is_local() => + (&ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }), _) + | (_, &ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. })) + if self.fields.define_opaque_types && def_id.is_local() => { self.fields.obligations.extend( infcx @@ -178,6 +182,11 @@ impl<'tcx> TypeRelation<'tcx> for Equate<'_, '_, 'tcx> { where T: Relate<'tcx>, { + // A binder is equal to itself if it's structually equal to itself + if a == b { + return Ok(a); + } + if a.skip_binder().has_escaping_bound_vars() || b.skip_binder().has_escaping_bound_vars() { self.fields.higher_ranked_sub(a, b, self.a_is_expected)?; self.fields.higher_ranked_sub(b, a, self.a_is_expected)?; diff --git a/compiler/rustc_infer/src/infer/error_reporting/mod.rs b/compiler/rustc_infer/src/infer/error_reporting/mod.rs index 987559d7e47..397fa43175f 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/mod.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/mod.rs @@ -339,11 +339,13 @@ pub fn unexpected_hidden_region_diagnostic<'tcx>( impl<'tcx> InferCtxt<'tcx> { pub fn get_impl_future_output_ty(&self, ty: Ty<'tcx>) -> Option<Ty<'tcx>> { let (def_id, substs) = match *ty.kind() { - ty::Opaque(def_id, substs) => (def_id, substs), - ty::Projection(data) - if self.tcx.def_kind(data.item_def_id) == DefKind::ImplTraitPlaceholder => + ty::Alias(_, ty::AliasTy { def_id, substs, .. }) + if matches!( + self.tcx.def_kind(def_id), + DefKind::OpaqueTy | DefKind::ImplTraitPlaceholder + ) => { - (data.item_def_id, data.substs) + (def_id, substs) } _ => return None, }; @@ -357,7 +359,7 @@ impl<'tcx> InferCtxt<'tcx> { .kind() .map_bound(|kind| match kind { ty::PredicateKind::Clause(ty::Clause::Projection(projection_predicate)) - if projection_predicate.projection_ty.item_def_id == item_def_id => + if projection_predicate.projection_ty.def_id == item_def_id => { projection_predicate.term.ty() } @@ -1730,7 +1732,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { let extra = expected == found; let sort_string = |ty: Ty<'tcx>, path: Option<PathBuf>| { let mut s = match (extra, ty.kind()) { - (true, ty::Opaque(def_id, _)) => { + (true, ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. })) => { let sm = self.tcx.sess.source_map(); let pos = sm.lookup_char_pos(self.tcx.def_span(*def_id).lo()); format!( @@ -1740,12 +1742,12 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { pos.col.to_usize() + 1, ) } - (true, ty::Projection(proj)) - if self.tcx.def_kind(proj.item_def_id) + (true, ty::Alias(ty::Projection, proj)) + if self.tcx.def_kind(proj.def_id) == DefKind::ImplTraitPlaceholder => { let sm = self.tcx.sess.source_map(); - let pos = sm.lookup_char_pos(self.tcx.def_span(proj.item_def_id).lo()); + let pos = sm.lookup_char_pos(self.tcx.def_span(proj.def_id).lo()); format!( " (trait associated opaque type at <{}:{}:{}>)", sm.filename_for_diagnostics(&pos.file.name), @@ -2383,7 +2385,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { // fn get_later<G, T>(g: G, dest: &mut T) -> impl FnOnce() + '_ // suggest: // fn get_later<'a, G: 'a, T>(g: G, dest: &mut T) -> impl FnOnce() + '_ + 'a - ty::Closure(_, _substs) | ty::Opaque(_, _substs) if return_impl_trait => { + ty::Closure(..) | ty::Alias(ty::Opaque, ..) if return_impl_trait => { new_binding_suggestion(&mut err, type_param_span); } _ => { @@ -2765,7 +2767,7 @@ impl TyCategory { pub fn from_ty(tcx: TyCtxt<'_>, ty: Ty<'_>) -> Option<(Self, DefId)> { match *ty.kind() { ty::Closure(def_id, _) => Some((Self::Closure, def_id)), - ty::Opaque(def_id, _) => Some((Self::Opaque, def_id)), + ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }) => Some((Self::Opaque, def_id)), ty::Generator(def_id, ..) => { Some((Self::Generator(tcx.generator_kind(def_id).unwrap()), def_id)) } diff --git a/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs b/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs index 8ff1639a3a2..a4c36b4c9cd 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs @@ -20,7 +20,7 @@ use rustc_middle::ty::print::{FmtPrinter, PrettyPrinter, Print, Printer}; use rustc_middle::ty::{self, DefIdTree, InferConst}; use rustc_middle::ty::{GenericArg, GenericArgKind, SubstsRef}; use rustc_middle::ty::{IsSuggestable, Ty, TyCtxt, TypeckResults}; -use rustc_span::symbol::{kw, Ident}; +use rustc_span::symbol::{kw, sym, Ident}; use rustc_span::{BytePos, Span}; use std::borrow::Cow; use std::iter; @@ -79,7 +79,7 @@ impl InferenceDiagnosticsData { fn where_x_is_kind(&self, in_type: Ty<'_>) -> &'static str { if in_type.is_ty_infer() { - "empty" + "" } else if self.name == "_" { // FIXME: Consider specializing this message if there is a single `_` // in the type. @@ -183,13 +183,24 @@ fn fmt_printer<'a, 'tcx>(infcx: &'a InferCtxt<'tcx>, ns: Namespace) -> FmtPrinte printer } -fn ty_to_string<'tcx>(infcx: &InferCtxt<'tcx>, ty: Ty<'tcx>) -> String { +fn ty_to_string<'tcx>( + infcx: &InferCtxt<'tcx>, + ty: Ty<'tcx>, + called_method_def_id: Option<DefId>, +) -> String { let printer = fmt_printer(infcx, Namespace::TypeNS); let ty = infcx.resolve_vars_if_possible(ty); - match ty.kind() { + match (ty.kind(), called_method_def_id) { // We don't want the regular output for `fn`s because it includes its path in // invalid pseudo-syntax, we want the `fn`-pointer output instead. - ty::FnDef(..) => ty.fn_sig(infcx.tcx).print(printer).unwrap().into_buffer(), + (ty::FnDef(..), _) => ty.fn_sig(infcx.tcx).print(printer).unwrap().into_buffer(), + (_, Some(def_id)) + if ty.is_ty_infer() + && infcx.tcx.get_diagnostic_item(sym::iterator_collect_fn) == Some(def_id) => + { + "Vec<_>".to_string() + } + _ if ty.is_ty_infer() => "/* Type */".to_string(), // FIXME: The same thing for closures, but this only works when the closure // does not capture anything. // @@ -213,7 +224,7 @@ fn closure_as_fn_str<'tcx>(infcx: &InferCtxt<'tcx>, ty: Ty<'tcx>) -> String { .map(|args| { args.tuple_fields() .iter() - .map(|arg| ty_to_string(infcx, arg)) + .map(|arg| ty_to_string(infcx, arg, None)) .collect::<Vec<_>>() .join(", ") }) @@ -221,7 +232,7 @@ fn closure_as_fn_str<'tcx>(infcx: &InferCtxt<'tcx>, ty: Ty<'tcx>) -> String { let ret = if fn_sig.output().skip_binder().is_unit() { String::new() } else { - format!(" -> {}", ty_to_string(infcx, fn_sig.output().skip_binder())) + format!(" -> {}", ty_to_string(infcx, fn_sig.output().skip_binder(), None)) }; format!("fn({}){}", args, ret) } @@ -368,6 +379,7 @@ impl<'tcx> InferCtxt<'tcx> { } impl<'tcx> TypeErrCtxt<'_, 'tcx> { + #[instrument(level = "debug", skip(self, error_code))] pub fn emit_inference_failure_err( &self, body_id: Option<hir::BodyId>, @@ -406,7 +418,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { let mut infer_subdiags = Vec::new(); let mut multi_suggestions = Vec::new(); match kind { - InferSourceKind::LetBinding { insert_span, pattern_name, ty } => { + InferSourceKind::LetBinding { insert_span, pattern_name, ty, def_id } => { infer_subdiags.push(SourceKindSubdiag::LetLike { span: insert_span, name: pattern_name.map(|name| name.to_string()).unwrap_or_else(String::new), @@ -415,7 +427,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { prefix: arg_data.kind.try_get_prefix().unwrap_or_default(), arg_name: arg_data.name, kind: if pattern_name.is_some() { "with_pattern" } else { "other" }, - type_name: ty_to_string(self, ty), + type_name: ty_to_string(self, ty, def_id), }); } InferSourceKind::ClosureArg { insert_span, ty } => { @@ -427,7 +439,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { prefix: arg_data.kind.try_get_prefix().unwrap_or_default(), arg_name: arg_data.name, kind: "closure", - type_name: ty_to_string(self, ty), + type_name: ty_to_string(self, ty, None), }); } InferSourceKind::GenericArg { @@ -456,33 +468,39 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { parent_name, }); - let args = fmt_printer(self, Namespace::TypeNS) - .comma_sep(generic_args.iter().copied().map(|arg| { - if arg.is_suggestable(self.tcx, true) { - return arg; - } + let args = if self.infcx.tcx.get_diagnostic_item(sym::iterator_collect_fn) + == Some(generics_def_id) + { + "Vec<_>".to_string() + } else { + fmt_printer(self, Namespace::TypeNS) + .comma_sep(generic_args.iter().copied().map(|arg| { + if arg.is_suggestable(self.tcx, true) { + return arg; + } - match arg.unpack() { - GenericArgKind::Lifetime(_) => bug!("unexpected lifetime"), - GenericArgKind::Type(_) => self - .next_ty_var(TypeVariableOrigin { - span: rustc_span::DUMMY_SP, - kind: TypeVariableOriginKind::MiscVariable, - }) - .into(), - GenericArgKind::Const(arg) => self - .next_const_var( - arg.ty(), - ConstVariableOrigin { + match arg.unpack() { + GenericArgKind::Lifetime(_) => bug!("unexpected lifetime"), + GenericArgKind::Type(_) => self + .next_ty_var(TypeVariableOrigin { span: rustc_span::DUMMY_SP, - kind: ConstVariableOriginKind::MiscVariable, - }, - ) - .into(), - } - })) - .unwrap() - .into_buffer(); + kind: TypeVariableOriginKind::MiscVariable, + }) + .into(), + GenericArgKind::Const(arg) => self + .next_const_var( + arg.ty(), + ConstVariableOrigin { + span: rustc_span::DUMMY_SP, + kind: ConstVariableOriginKind::MiscVariable, + }, + ) + .into(), + } + })) + .unwrap() + .into_buffer() + }; if !have_turbofish { infer_subdiags.push(SourceKindSubdiag::GenericSuggestion { @@ -520,7 +538,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { )); } InferSourceKind::ClosureReturn { ty, data, should_wrap_expr } => { - let ty_info = ty_to_string(self, ty); + let ty_info = ty_to_string(self, ty, None); multi_suggestions.push(SourceKindMultiSuggestion::new_closure_return( ty_info, data, @@ -608,6 +626,7 @@ enum InferSourceKind<'tcx> { insert_span: Span, pattern_name: Option<Ident>, ty: Ty<'tcx>, + def_id: Option<DefId>, }, ClosureArg { insert_span: Span, @@ -662,7 +681,7 @@ impl<'tcx> InferSourceKind<'tcx> { if ty.is_closure() { ("closure", closure_as_fn_str(infcx, ty)) } else if !ty.is_ty_infer() { - ("normal", ty_to_string(infcx, ty)) + ("normal", ty_to_string(infcx, ty, None)) } else { ("other", String::new()) } @@ -788,10 +807,18 @@ impl<'a, 'tcx> FindInferSourceVisitor<'a, 'tcx> { /// Uses `fn source_cost` to determine whether this inference source is preferable to /// previous sources. We generally prefer earlier sources. #[instrument(level = "debug", skip(self))] - fn update_infer_source(&mut self, new_source: InferSource<'tcx>) { + fn update_infer_source(&mut self, mut new_source: InferSource<'tcx>) { let cost = self.source_cost(&new_source) + self.attempt; debug!(?cost); self.attempt += 1; + if let Some(InferSource { kind: InferSourceKind::GenericArg { def_id: did, ..}, .. }) = self.infer_source + && let InferSourceKind::LetBinding { ref ty, ref mut def_id, ..} = new_source.kind + && ty.is_ty_infer() + { + // Customize the output so we talk about `let x: Vec<_> = iter.collect();` instead of + // `let x: _ = iter.collect();`, as this is a very common case. + *def_id = Some(did); + } if cost < self.infer_source_cost { self.infer_source_cost = cost; self.infer_source = Some(new_source); @@ -852,7 +879,10 @@ impl<'a, 'tcx> FindInferSourceVisitor<'a, 'tcx> { match inner.unpack() { GenericArgKind::Lifetime(_) => {} GenericArgKind::Type(ty) => { - if matches!(ty.kind(), ty::Opaque(..) | ty::Closure(..) | ty::Generator(..)) { + if matches!( + ty.kind(), + ty::Alias(ty::Opaque, ..) | ty::Closure(..) | ty::Generator(..) + ) { // Opaque types can't be named by the user right now. // // Both the generic arguments of closures and generators can @@ -1089,6 +1119,7 @@ impl<'a, 'tcx> Visitor<'tcx> for FindInferSourceVisitor<'a, 'tcx> { insert_span: local.pat.span.shrink_to_hi(), pattern_name: local.pat.simple_ident(), ty, + def_id: None, }, }) } diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_error.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_error.rs index 1f554c81eff..fed9fda74bf 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_error.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/placeholder_error.rs @@ -226,13 +226,11 @@ impl<'tcx> NiceRegionError<'_, 'tcx> { false }; - let expected_trait_ref = self.cx.resolve_vars_if_possible(ty::TraitRef { - def_id: trait_def_id, - substs: expected_substs, - }); - let actual_trait_ref = self + let expected_trait_ref = self .cx - .resolve_vars_if_possible(ty::TraitRef { def_id: trait_def_id, substs: actual_substs }); + .resolve_vars_if_possible(self.cx.tcx.mk_trait_ref(trait_def_id, expected_substs)); + let actual_trait_ref = + self.cx.resolve_vars_if_possible(self.cx.tcx.mk_trait_ref(trait_def_id, actual_substs)); // Search the expected and actual trait references to see (a) // whether the sub/sup placeholders appear in them (sometimes diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/static_impl_trait.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/static_impl_trait.rs index 09f9aa3c842..9bd2202d260 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/static_impl_trait.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/static_impl_trait.rs @@ -330,7 +330,7 @@ pub fn suggest_new_region_bound( Applicability::MaybeIncorrect, ); } - if let Some((param_span, param_ty)) = param.clone() { + if let Some((param_span, ref param_ty)) = param { err.span_suggestion_verbose( param_span, add_static_bound, diff --git a/compiler/rustc_infer/src/infer/error_reporting/suggest.rs b/compiler/rustc_infer/src/infer/error_reporting/suggest.rs index 73b5a2cc4ad..30ca9f41d6e 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/suggest.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/suggest.rs @@ -486,12 +486,14 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { _ if self.same_type_modulo_infer(last_expr_ty, expected_ty) => { StatementAsExpression::CorrectType } - (ty::Opaque(last_def_id, _), ty::Opaque(exp_def_id, _)) - if last_def_id == exp_def_id => - { - StatementAsExpression::CorrectType - } - (ty::Opaque(last_def_id, last_bounds), ty::Opaque(exp_def_id, exp_bounds)) => { + ( + ty::Alias(ty::Opaque, ty::AliasTy { def_id: last_def_id, .. }), + ty::Alias(ty::Opaque, ty::AliasTy { def_id: exp_def_id, .. }), + ) if last_def_id == exp_def_id => StatementAsExpression::CorrectType, + ( + ty::Alias(ty::Opaque, ty::AliasTy { def_id: last_def_id, substs: last_bounds, .. }), + ty::Alias(ty::Opaque, ty::AliasTy { def_id: exp_def_id, substs: exp_bounds, .. }), + ) => { debug!( "both opaque, likely future {:?} {:?} {:?} {:?}", last_def_id, last_bounds, exp_def_id, exp_bounds diff --git a/compiler/rustc_infer/src/infer/freshen.rs b/compiler/rustc_infer/src/infer/freshen.rs index f6946929bd2..8f53b1ccdf4 100644 --- a/compiler/rustc_infer/src/infer/freshen.rs +++ b/compiler/rustc_infer/src/infer/freshen.rs @@ -205,12 +205,11 @@ impl<'a, 'tcx> TypeFolder<'tcx> for TypeFreshener<'a, 'tcx> { | ty::Dynamic(..) | ty::Never | ty::Tuple(..) - | ty::Projection(..) + | ty::Alias(..) | ty::Foreign(..) | ty::Param(..) | ty::Closure(..) - | ty::GeneratorWitness(..) - | ty::Opaque(..) => t.super_fold_with(self), + | ty::GeneratorWitness(..) => t.super_fold_with(self), ty::Placeholder(..) | ty::Bound(..) => bug!("unexpected type {:?}", t), } diff --git a/compiler/rustc_infer/src/infer/glb.rs b/compiler/rustc_infer/src/infer/glb.rs index 7f27b35a54e..21b68ce9989 100644 --- a/compiler/rustc_infer/src/infer/glb.rs +++ b/compiler/rustc_infer/src/infer/glb.rs @@ -103,6 +103,11 @@ impl<'tcx> TypeRelation<'tcx> for Glb<'_, '_, 'tcx> { where T: Relate<'tcx>, { + // GLB of a binder and itself is just itself + if a == b { + return Ok(a); + } + debug!("binders(a={:?}, b={:?})", a, b); if a.skip_binder().has_escaping_bound_vars() || b.skip_binder().has_escaping_bound_vars() { // When higher-ranked types are involved, computing the GLB is diff --git a/compiler/rustc_infer/src/infer/lattice.rs b/compiler/rustc_infer/src/infer/lattice.rs index eba65361ae6..0ebc6d55bcb 100644 --- a/compiler/rustc_infer/src/infer/lattice.rs +++ b/compiler/rustc_infer/src/infer/lattice.rs @@ -105,11 +105,13 @@ where Ok(v) } - (&ty::Opaque(a_def_id, _), &ty::Opaque(b_def_id, _)) if a_def_id == b_def_id => { - infcx.super_combine_tys(this, a, b) - } - (&ty::Opaque(did, ..), _) | (_, &ty::Opaque(did, ..)) - if this.define_opaque_types() && did.is_local() => + ( + &ty::Alias(ty::Opaque, ty::AliasTy { def_id: a_def_id, .. }), + &ty::Alias(ty::Opaque, ty::AliasTy { def_id: b_def_id, .. }), + ) if a_def_id == b_def_id => infcx.super_combine_tys(this, a, b), + (&ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }), _) + | (_, &ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. })) + if this.define_opaque_types() && def_id.is_local() => { this.add_obligations( infcx diff --git a/compiler/rustc_infer/src/infer/lub.rs b/compiler/rustc_infer/src/infer/lub.rs index 97ed4729bd0..c07ac1d3ace 100644 --- a/compiler/rustc_infer/src/infer/lub.rs +++ b/compiler/rustc_infer/src/infer/lub.rs @@ -103,6 +103,11 @@ impl<'tcx> TypeRelation<'tcx> for Lub<'_, '_, 'tcx> { where T: Relate<'tcx>, { + // LUB of a binder and itself is just itself + if a == b { + return Ok(a); + } + debug!("binders(a={:?}, b={:?})", a, b); if a.skip_binder().has_escaping_bound_vars() || b.skip_binder().has_escaping_bound_vars() { // When higher-ranked types are involved, computing the LUB is diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs index 2ce7cd8beba..996148a7090 100644 --- a/compiler/rustc_infer/src/infer/mod.rs +++ b/compiler/rustc_infer/src/infer/mod.rs @@ -2014,31 +2014,54 @@ fn replace_param_and_infer_substs_with_placeholder<'tcx>( tcx: TyCtxt<'tcx>, substs: SubstsRef<'tcx>, ) -> SubstsRef<'tcx> { - tcx.mk_substs(substs.iter().enumerate().map(|(idx, arg)| { - match arg.unpack() { - GenericArgKind::Type(_) if arg.has_non_region_param() || arg.has_non_region_infer() => { - tcx.mk_ty(ty::Placeholder(ty::PlaceholderType { + struct ReplaceParamAndInferWithPlaceholder<'tcx> { + tcx: TyCtxt<'tcx>, + idx: usize, + } + + impl<'tcx> TypeFolder<'tcx> for ReplaceParamAndInferWithPlaceholder<'tcx> { + fn tcx(&self) -> TyCtxt<'tcx> { + self.tcx + } + + fn fold_ty(&mut self, t: Ty<'tcx>) -> Ty<'tcx> { + if let ty::Infer(_) = t.kind() { + self.tcx.mk_ty(ty::Placeholder(ty::PlaceholderType { universe: ty::UniverseIndex::ROOT, - name: ty::BoundVar::from_usize(idx), + name: ty::BoundVar::from_usize({ + let idx = self.idx; + self.idx += 1; + idx + }), })) - .into() + } else { + t.super_fold_with(self) } - GenericArgKind::Const(ct) if ct.has_non_region_infer() || ct.has_non_region_param() => { - let ty = ct.ty(); - // If the type references param or infer, replace that too... + } + + fn fold_const(&mut self, c: ty::Const<'tcx>) -> ty::Const<'tcx> { + if let ty::ConstKind::Infer(_) = c.kind() { + let ty = c.ty(); + // If the type references param or infer then ICE ICE ICE if ty.has_non_region_param() || ty.has_non_region_infer() { - bug!("const `{ct}`'s type should not reference params or types"); + bug!("const `{c}`'s type should not reference params or types"); } - tcx.mk_const( + self.tcx.mk_const( ty::PlaceholderConst { universe: ty::UniverseIndex::ROOT, - name: ty::BoundVar::from_usize(idx), + name: ty::BoundVar::from_usize({ + let idx = self.idx; + self.idx += 1; + idx + }), }, ty, ) - .into() + } else { + c.super_fold_with(self) } - _ => arg, } - })) + } + + substs.fold_with(&mut ReplaceParamAndInferWithPlaceholder { tcx, idx: 0 }) } diff --git a/compiler/rustc_infer/src/infer/nll_relate/mod.rs b/compiler/rustc_infer/src/infer/nll_relate/mod.rs index f6bc4db0d59..1f9d86a78d6 100644 --- a/compiler/rustc_infer/src/infer/nll_relate/mod.rs +++ b/compiler/rustc_infer/src/infer/nll_relate/mod.rs @@ -275,13 +275,13 @@ where /// `ProjectionEq(projection = ?U)`, `ProjectionEq(other_projection = ?U)`. fn relate_projection_ty( &mut self, - projection_ty: ty::ProjectionTy<'tcx>, + projection_ty: ty::AliasTy<'tcx>, value_ty: Ty<'tcx>, ) -> Ty<'tcx> { use rustc_span::DUMMY_SP; match *value_ty.kind() { - ty::Projection(other_projection_ty) => { + ty::Alias(ty::Projection, other_projection_ty) => { let var = self.infcx.next_ty_var(TypeVariableOrigin { kind: TypeVariableOriginKind::MiscVariable, span: DUMMY_SP, @@ -335,7 +335,9 @@ where return Ok(value_ty); } - ty::Projection(projection_ty) if D::normalization() == NormalizationStrategy::Lazy => { + ty::Alias(ty::Projection, projection_ty) + if D::normalization() == NormalizationStrategy::Lazy => + { return Ok(self.relate_projection_ty(projection_ty, self.infcx.tcx.mk_ty_var(vid))); } @@ -406,8 +408,8 @@ where } }; let (a, b) = match (a.kind(), b.kind()) { - (&ty::Opaque(..), _) => (a, generalize(b, false)?), - (_, &ty::Opaque(..)) => (generalize(a, true)?, b), + (&ty::Alias(ty::Opaque, ..), _) => (a, generalize(b, false)?), + (_, &ty::Alias(ty::Opaque, ..)) => (generalize(a, true)?, b), _ => unreachable!(), }; let cause = ObligationCause::dummy_with_span(self.delegate.span()); @@ -608,26 +610,30 @@ where (&ty::Infer(ty::TyVar(vid)), _) => self.relate_ty_var((vid, b)), - (&ty::Opaque(a_def_id, _), &ty::Opaque(b_def_id, _)) if a_def_id == b_def_id => { - infcx.super_combine_tys(self, a, b).or_else(|err| { - self.tcx().sess.delay_span_bug( - self.delegate.span(), - "failure to relate an opaque to itself should result in an error later on", - ); - if a_def_id.is_local() { self.relate_opaques(a, b) } else { Err(err) } - }) - } - (&ty::Opaque(did, ..), _) | (_, &ty::Opaque(did, ..)) if did.is_local() => { + ( + &ty::Alias(ty::Opaque, ty::AliasTy { def_id: a_def_id, .. }), + &ty::Alias(ty::Opaque, ty::AliasTy { def_id: b_def_id, .. }), + ) if a_def_id == b_def_id => infcx.super_combine_tys(self, a, b).or_else(|err| { + self.tcx().sess.delay_span_bug( + self.delegate.span(), + "failure to relate an opaque to itself should result in an error later on", + ); + if a_def_id.is_local() { self.relate_opaques(a, b) } else { Err(err) } + }), + (&ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }), _) + | (_, &ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. })) + if def_id.is_local() => + { self.relate_opaques(a, b) } - (&ty::Projection(projection_ty), _) + (&ty::Alias(ty::Projection, projection_ty), _) if D::normalization() == NormalizationStrategy::Lazy => { Ok(self.relate_projection_ty(projection_ty, b)) } - (_, &ty::Projection(projection_ty)) + (_, &ty::Alias(ty::Projection, projection_ty)) if D::normalization() == NormalizationStrategy::Lazy => { Ok(self.relate_projection_ty(projection_ty, a)) diff --git a/compiler/rustc_infer/src/infer/opaque_types.rs b/compiler/rustc_infer/src/infer/opaque_types.rs index 524f7a39ebb..a130fde47ed 100644 --- a/compiler/rustc_infer/src/infer/opaque_types.rs +++ b/compiler/rustc_infer/src/infer/opaque_types.rs @@ -66,7 +66,9 @@ impl<'tcx> InferCtxt<'tcx> { lt_op: |lt| lt, ct_op: |ct| ct, ty_op: |ty| match *ty.kind() { - ty::Opaque(def_id, _substs) if replace_opaque_type(def_id) => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }) + if replace_opaque_type(def_id) => + { let def_span = self.tcx.def_span(def_id); let span = if span.contains(def_span) { def_span } else { span }; let code = traits::ObligationCauseCode::OpaqueReturnType(None); @@ -104,7 +106,7 @@ impl<'tcx> InferCtxt<'tcx> { } let (a, b) = if a_is_expected { (a, b) } else { (b, a) }; let process = |a: Ty<'tcx>, b: Ty<'tcx>, a_is_expected| match *a.kind() { - ty::Opaque(def_id, substs) if def_id.is_local() => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) if def_id.is_local() => { let def_id = def_id.expect_local(); let origin = match self.defining_use_anchor { DefiningAnchor::Bind(_) => { @@ -147,18 +149,19 @@ impl<'tcx> InferCtxt<'tcx> { DefiningAnchor::Bubble => self.opaque_ty_origin_unchecked(def_id, cause.span), DefiningAnchor::Error => return None, }; - if let ty::Opaque(did2, _) = *b.kind() { + if let ty::Alias(ty::Opaque, ty::AliasTy { def_id: b_def_id, .. }) = *b.kind() { // We could accept this, but there are various ways to handle this situation, and we don't // want to make a decision on it right now. Likely this case is so super rare anyway, that // no one encounters it in practice. // It does occur however in `fn fut() -> impl Future<Output = i32> { async { 42 } }`, // where it is of no concern, so we only check for TAITs. - if let Some(OpaqueTyOrigin::TyAlias) = - did2.as_local().and_then(|did2| self.opaque_type_origin(did2, cause.span)) + if let Some(OpaqueTyOrigin::TyAlias) = b_def_id + .as_local() + .and_then(|b_def_id| self.opaque_type_origin(b_def_id, cause.span)) { self.tcx.sess.emit_err(OpaqueHiddenTypeDiag { span: cause.span, - hidden_type: self.tcx.def_span(did2), + hidden_type: self.tcx.def_span(b_def_id), opaque_type: self.tcx.def_span(def_id), }); } @@ -475,7 +478,7 @@ where substs.as_generator().resume_ty().visit_with(self); } - ty::Opaque(def_id, ref substs) => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id, ref substs, .. }) => { // Skip lifetime paramters that are not captures. let variances = self.tcx.variances_of(*def_id); @@ -486,11 +489,11 @@ where } } - ty::Projection(proj) - if self.tcx.def_kind(proj.item_def_id) == DefKind::ImplTraitPlaceholder => + ty::Alias(ty::Projection, proj) + if self.tcx.def_kind(proj.def_id) == DefKind::ImplTraitPlaceholder => { // Skip lifetime paramters that are not captures. - let variances = self.tcx.variances_of(proj.item_def_id); + let variances = self.tcx.variances_of(proj.def_id); for (v, s) in std::iter::zip(variances, proj.substs.iter()) { if *v != ty::Variance::Bivariant { @@ -563,9 +566,9 @@ impl<'tcx> InferCtxt<'tcx> { // We can't normalize associated types from `rustc_infer`, // but we can eagerly register inference variables for them. // FIXME(RPITIT): Don't replace RPITITs with inference vars. - ty::Projection(projection_ty) + ty::Alias(ty::Projection, projection_ty) if !projection_ty.has_escaping_bound_vars() - && tcx.def_kind(projection_ty.item_def_id) + && tcx.def_kind(projection_ty.def_id) != DefKind::ImplTraitPlaceholder => { self.infer_projection( @@ -578,17 +581,16 @@ impl<'tcx> InferCtxt<'tcx> { } // Replace all other mentions of the same opaque type with the hidden type, // as the bounds must hold on the hidden type after all. - ty::Opaque(def_id2, substs2) + ty::Alias(ty::Opaque, ty::AliasTy { def_id: def_id2, substs: substs2, .. }) if def_id.to_def_id() == def_id2 && substs == substs2 => { hidden_ty } // FIXME(RPITIT): This can go away when we move to associated types - ty::Projection(proj) - if def_id.to_def_id() == proj.item_def_id && substs == proj.substs => - { - hidden_ty - } + ty::Alias( + ty::Projection, + ty::AliasTy { def_id: def_id2, substs: substs2, .. }, + ) if def_id.to_def_id() == def_id2 && substs == substs2 => hidden_ty, _ => ty, }, lt_op: |lt| lt, diff --git a/compiler/rustc_infer/src/infer/outlives/components.rs b/compiler/rustc_infer/src/infer/outlives/components.rs index 14ee9f05190..aa2b5d067d2 100644 --- a/compiler/rustc_infer/src/infer/outlives/components.rs +++ b/compiler/rustc_infer/src/infer/outlives/components.rs @@ -23,7 +23,7 @@ pub enum Component<'tcx> { // is not in a position to judge which is the best technique, so // we just product the projection as a component and leave it to // the consumer to decide (but see `EscapingProjection` below). - Projection(ty::ProjectionTy<'tcx>), + Projection(ty::AliasTy<'tcx>), // In the case where a projection has escaping regions -- meaning // regions bound within the type itself -- we always use @@ -130,7 +130,7 @@ fn compute_components<'tcx>( // outlives any other lifetime, which is unsound. // See https://github.com/rust-lang/rust/issues/84305 for // more details. - ty::Opaque(def_id, substs) => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => { out.push(Component::Opaque(def_id, substs)); }, @@ -142,7 +142,7 @@ fn compute_components<'tcx>( // trait-ref. Therefore, if we see any higher-ranked regions, // we simply fallback to the most restrictive rule, which // requires that `Pi: 'a` for all `i`. - ty::Projection(ref data) => { + ty::Alias(ty::Projection, ref data) => { if !data.has_escaping_bound_vars() { // best case: no escaping regions, so push the // projection and skip the subtree (thus generating no diff --git a/compiler/rustc_infer/src/infer/outlives/obligations.rs b/compiler/rustc_infer/src/infer/outlives/obligations.rs index 6ca884799aa..ccae7165d80 100644 --- a/compiler/rustc_infer/src/infer/outlives/obligations.rs +++ b/compiler/rustc_infer/src/infer/outlives/obligations.rs @@ -338,7 +338,7 @@ where substs, true, |ty| match *ty.kind() { - ty::Opaque(def_id, substs) => (def_id, substs), + ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => (def_id, substs), _ => bug!("expected only projection types from env, not {:?}", ty), }, ); @@ -349,17 +349,19 @@ where &mut self, origin: infer::SubregionOrigin<'tcx>, region: ty::Region<'tcx>, - projection_ty: ty::ProjectionTy<'tcx>, + projection_ty: ty::AliasTy<'tcx>, ) { self.generic_must_outlive( origin, region, GenericKind::Projection(projection_ty), - projection_ty.item_def_id, + projection_ty.def_id, projection_ty.substs, false, |ty| match ty.kind() { - ty::Projection(projection_ty) => (projection_ty.item_def_id, projection_ty.substs), + ty::Alias(ty::Projection, projection_ty) => { + (projection_ty.def_id, projection_ty.substs) + } _ => bug!("expected only projection types from env, not {:?}", ty), }, ); diff --git a/compiler/rustc_infer/src/infer/outlives/verify.rs b/compiler/rustc_infer/src/infer/outlives/verify.rs index f470b2eb8c1..136da4a3cb1 100644 --- a/compiler/rustc_infer/src/infer/outlives/verify.rs +++ b/compiler/rustc_infer/src/infer/outlives/verify.rs @@ -178,7 +178,7 @@ impl<'cx, 'tcx> VerifyBoundCx<'cx, 'tcx> { ), Component::Projection(projection_ty) => self.projection_opaque_bounds( GenericKind::Projection(projection_ty), - projection_ty.item_def_id, + projection_ty.def_id, projection_ty.substs, visited, ), diff --git a/compiler/rustc_infer/src/infer/projection.rs b/compiler/rustc_infer/src/infer/projection.rs index eb6deee291c..4667d99ff00 100644 --- a/compiler/rustc_infer/src/infer/projection.rs +++ b/compiler/rustc_infer/src/infer/projection.rs @@ -16,12 +16,12 @@ impl<'tcx> InferCtxt<'tcx> { pub fn infer_projection( &self, param_env: ty::ParamEnv<'tcx>, - projection_ty: ty::ProjectionTy<'tcx>, + projection_ty: ty::AliasTy<'tcx>, cause: ObligationCause<'tcx>, recursion_depth: usize, obligations: &mut Vec<PredicateObligation<'tcx>>, ) -> Ty<'tcx> { - let def_id = projection_ty.item_def_id; + let def_id = projection_ty.def_id; let ty_var = self.next_ty_var(TypeVariableOrigin { kind: TypeVariableOriginKind::NormalizeProjectionType, span: self.tcx.def_span(def_id), diff --git a/compiler/rustc_infer/src/infer/region_constraints/mod.rs b/compiler/rustc_infer/src/infer/region_constraints/mod.rs index 985c5d360db..9a427ceacd0 100644 --- a/compiler/rustc_infer/src/infer/region_constraints/mod.rs +++ b/compiler/rustc_infer/src/infer/region_constraints/mod.rs @@ -169,7 +169,7 @@ pub struct Verify<'tcx> { #[derive(Copy, Clone, PartialEq, Eq, Hash, TypeFoldable, TypeVisitable)] pub enum GenericKind<'tcx> { Param(ty::ParamTy), - Projection(ty::ProjectionTy<'tcx>), + Projection(ty::AliasTy<'tcx>), Opaque(DefId, SubstsRef<'tcx>), } @@ -773,7 +773,7 @@ impl<'tcx> GenericKind<'tcx> { pub fn to_ty(&self, tcx: TyCtxt<'tcx>) -> Ty<'tcx> { match *self { GenericKind::Param(ref p) => p.to_ty(tcx), - GenericKind::Projection(ref p) => tcx.mk_projection(p.item_def_id, p.substs), + GenericKind::Projection(ref p) => tcx.mk_projection(p.def_id, p.substs), GenericKind::Opaque(def_id, substs) => tcx.mk_opaque(def_id, substs), } } diff --git a/compiler/rustc_infer/src/infer/sub.rs b/compiler/rustc_infer/src/infer/sub.rs index 2c6987cc3f4..bd38b52ba34 100644 --- a/compiler/rustc_infer/src/infer/sub.rs +++ b/compiler/rustc_infer/src/infer/sub.rs @@ -130,12 +130,16 @@ impl<'tcx> TypeRelation<'tcx> for Sub<'_, '_, 'tcx> { Ok(self.tcx().ty_error_with_guaranteed(e)) } - (&ty::Opaque(a_def_id, _), &ty::Opaque(b_def_id, _)) if a_def_id == b_def_id => { + ( + &ty::Alias(ty::Opaque, ty::AliasTy { def_id: a_def_id, .. }), + &ty::Alias(ty::Opaque, ty::AliasTy { def_id: b_def_id, .. }), + ) if a_def_id == b_def_id => { self.fields.infcx.super_combine_tys(self, a, b)?; Ok(a) } - (&ty::Opaque(did, ..), _) | (_, &ty::Opaque(did, ..)) - if self.fields.define_opaque_types && did.is_local() => + (&ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }), _) + | (_, &ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. })) + if self.fields.define_opaque_types && def_id.is_local() => { self.fields.obligations.extend( infcx @@ -213,6 +217,11 @@ impl<'tcx> TypeRelation<'tcx> for Sub<'_, '_, 'tcx> { where T: Relate<'tcx>, { + // A binder is always a subtype of itself if it's structually equal to itself + if a == b { + return Ok(a); + } + self.fields.higher_ranked_sub(a, b, self.a_is_expected)?; Ok(a) } diff --git a/compiler/rustc_infer/src/traits/project.rs b/compiler/rustc_infer/src/traits/project.rs index 5d22f9f972e..aade57be9fe 100644 --- a/compiler/rustc_infer/src/traits/project.rs +++ b/compiler/rustc_infer/src/traits/project.rs @@ -77,11 +77,11 @@ pub struct ProjectionCacheStorage<'tcx> { #[derive(Copy, Clone, Debug, Hash, PartialEq, Eq)] pub struct ProjectionCacheKey<'tcx> { - ty: ty::ProjectionTy<'tcx>, + ty: ty::AliasTy<'tcx>, } impl<'tcx> ProjectionCacheKey<'tcx> { - pub fn new(ty: ty::ProjectionTy<'tcx>) -> Self { + pub fn new(ty: ty::AliasTy<'tcx>) -> Self { Self { ty } } } diff --git a/compiler/rustc_infer/src/traits/util.rs b/compiler/rustc_infer/src/traits/util.rs index 512e6079f43..8f0bd3a9abe 100644 --- a/compiler/rustc_infer/src/traits/util.rs +++ b/compiler/rustc_infer/src/traits/util.rs @@ -259,8 +259,7 @@ impl<'tcx> Elaborator<'tcx> { Component::Projection(projection) => { // We might end up here if we have `Foo<<Bar as Baz>::Assoc>: 'a`. // With this, we can deduce that `<Bar as Baz>::Assoc: 'a`. - let ty = - tcx.mk_projection(projection.item_def_id, projection.substs); + let ty = tcx.mk_projection(projection.def_id, projection.substs); Some(ty::PredicateKind::Clause(ty::Clause::TypeOutlives( ty::OutlivesPredicate(ty, r_min), ))) diff --git a/compiler/rustc_lexer/src/unescape.rs b/compiler/rustc_lexer/src/unescape.rs index e405013dcab..87c44638a8d 100644 --- a/compiler/rustc_lexer/src/unescape.rs +++ b/compiler/rustc_lexer/src/unescape.rs @@ -204,14 +204,13 @@ fn scan_escape(chars: &mut Chars<'_>, is_byte: bool) -> Result<char, EscapeError })?; } Some(c) => { - let digit = + let digit: u32 = c.to_digit(16).ok_or(EscapeError::InvalidCharInUnicodeEscape)?; n_digits += 1; if n_digits > 6 { // Stop updating value since we're sure that it's incorrect already. continue; } - let digit = digit as u32; value = value * 16 + digit; } }; diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs index 0932eee9237..43862570e80 100644 --- a/compiler/rustc_lint/src/builtin.rs +++ b/compiler/rustc_lint/src/builtin.rs @@ -3016,8 +3016,8 @@ impl ClashingExternDeclarations { | (Closure(..), Closure(..)) | (Generator(..), Generator(..)) | (GeneratorWitness(..), GeneratorWitness(..)) - | (Projection(..), Projection(..)) - | (Opaque(..), Opaque(..)) => false, + | (Alias(ty::Projection, ..), Alias(ty::Projection, ..)) + | (Alias(ty::Opaque, ..), Alias(ty::Opaque, ..)) => false, // These definitely should have been caught above. (Bool, Bool) | (Char, Char) | (Never, Never) | (Str, Str) => unreachable!(), diff --git a/compiler/rustc_lint/src/context.rs b/compiler/rustc_lint/src/context.rs index e6a0d7e60ca..40b2588388d 100644 --- a/compiler/rustc_lint/src/context.rs +++ b/compiler/rustc_lint/src/context.rs @@ -1258,7 +1258,7 @@ impl<'tcx> LateContext<'tcx> { tcx.associated_items(trait_id) .find_by_name_and_kind(tcx, Ident::from_str(name), ty::AssocKind::Type, trait_id) .and_then(|assoc| { - let proj = tcx.mk_projection(assoc.def_id, tcx.mk_substs_trait(self_ty, [])); + let proj = tcx.mk_projection(assoc.def_id, [self_ty]); tcx.try_normalize_erasing_regions(self.param_env, proj).ok() }) } diff --git a/compiler/rustc_lint/src/nonstandard_style.rs b/compiler/rustc_lint/src/nonstandard_style.rs index 7e50801f80c..91fcd6d690e 100644 --- a/compiler/rustc_lint/src/nonstandard_style.rs +++ b/compiler/rustc_lint/src/nonstandard_style.rs @@ -175,13 +175,23 @@ impl EarlyLintPass for NonCamelCaseTypes { return; } - match it.kind { + match &it.kind { ast::ItemKind::TyAlias(..) | ast::ItemKind::Enum(..) | ast::ItemKind::Struct(..) | ast::ItemKind::Union(..) => self.check_case(cx, "type", &it.ident), ast::ItemKind::Trait(..) => self.check_case(cx, "trait", &it.ident), ast::ItemKind::TraitAlias(..) => self.check_case(cx, "trait alias", &it.ident), + + // N.B. This check is only for inherent associated types, so that we don't lint against + // trait impls where we should have warned for the trait definition already. + ast::ItemKind::Impl(box ast::Impl { of_trait: None, items, .. }) => { + for it in items { + if let ast::AssocItemKind::Type(..) = it.kind { + self.check_case(cx, "associated type", &it.ident); + } + } + } _ => (), } } diff --git a/compiler/rustc_lint/src/opaque_hidden_inferred_bound.rs b/compiler/rustc_lint/src/opaque_hidden_inferred_bound.rs index 03d6f4fd926..42442cfb190 100644 --- a/compiler/rustc_lint/src/opaque_hidden_inferred_bound.rs +++ b/compiler/rustc_lint/src/opaque_hidden_inferred_bound.rs @@ -82,7 +82,7 @@ impl<'tcx> LateLintPass<'tcx> for OpaqueHiddenInferredBound { let Some(proj_term) = proj.term.ty() else { continue }; let proj_ty = - cx.tcx.mk_projection(proj.projection_ty.item_def_id, proj.projection_ty.substs); + cx.tcx.mk_projection(proj.projection_ty.def_id, proj.projection_ty.substs); // For every instance of the projection type in the bounds, // replace them with the term we're assigning to the associated // type in our opaque type. @@ -97,7 +97,7 @@ impl<'tcx> LateLintPass<'tcx> for OpaqueHiddenInferredBound { // with `impl Send: OtherTrait`. for (assoc_pred, assoc_pred_span) in cx .tcx - .bound_explicit_item_bounds(proj.projection_ty.item_def_id) + .bound_explicit_item_bounds(proj.projection_ty.def_id) .subst_iter_copied(cx.tcx, &proj.projection_ty.substs) { let assoc_pred = assoc_pred.fold_with(proj_replacer); @@ -117,7 +117,7 @@ impl<'tcx> LateLintPass<'tcx> for OpaqueHiddenInferredBound { // then we can emit a suggestion to add the bound. let add_bound = match (proj_term.kind(), assoc_pred.kind().skip_binder()) { ( - ty::Opaque(def_id, _), + ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }), ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)), ) => Some(AddBound { suggest_span: cx.tcx.def_span(*def_id).shrink_to_hi(), diff --git a/compiler/rustc_lint/src/types.rs b/compiler/rustc_lint/src/types.rs index 8446da6098e..8e27bc03c48 100644 --- a/compiler/rustc_lint/src/types.rs +++ b/compiler/rustc_lint/src/types.rs @@ -1139,18 +1139,20 @@ impl<'a, 'tcx> ImproperCTypesVisitor<'a, 'tcx> { // While opaque types are checked for earlier, if a projection in a struct field // normalizes to an opaque type, then it will reach this branch. - ty::Opaque(..) => { + ty::Alias(ty::Opaque, ..) => { FfiUnsafe { ty, reason: fluent::lint_improper_ctypes_opaque, help: None } } // `extern "C" fn` functions can have type parameters, which may or may not be FFI-safe, // so they are currently ignored for the purposes of this lint. - ty::Param(..) | ty::Projection(..) if matches!(self.mode, CItemKind::Definition) => { + ty::Param(..) | ty::Alias(ty::Projection, ..) + if matches!(self.mode, CItemKind::Definition) => + { FfiSafe } ty::Param(..) - | ty::Projection(..) + | ty::Alias(ty::Projection, ..) | ty::Infer(..) | ty::Bound(..) | ty::Error(_) @@ -1205,7 +1207,7 @@ impl<'a, 'tcx> ImproperCTypesVisitor<'a, 'tcx> { return ControlFlow::CONTINUE; } - if let ty::Opaque(..) = ty.kind() { + if let ty::Alias(ty::Opaque, ..) = ty.kind() { ControlFlow::Break(ty) } else { ty.super_visit_with(self) diff --git a/compiler/rustc_lint/src/unused.rs b/compiler/rustc_lint/src/unused.rs index dc352778f1d..d628a18dd01 100644 --- a/compiler/rustc_lint/src/unused.rs +++ b/compiler/rustc_lint/src/unused.rs @@ -96,7 +96,7 @@ impl<'tcx> LateLintPass<'tcx> for UnusedResults { if let hir::ExprKind::Match(await_expr, _arms, hir::MatchSource::AwaitDesugar) = expr.kind && let ty = cx.typeck_results().expr_ty(&await_expr) - && let ty::Opaque(future_def_id, _) = ty.kind() + && let ty::Alias(ty::Opaque, ty::AliasTy { def_id: future_def_id, .. }) = ty.kind() && cx.tcx.ty_is_opaque_future(ty) // FIXME: This also includes non-async fns that return `impl Future`. && let async_fn_def_id = cx.tcx.parent(*future_def_id) @@ -251,7 +251,7 @@ impl<'tcx> LateLintPass<'tcx> for UnusedResults { .map(|inner| MustUsePath::Boxed(Box::new(inner))) } ty::Adt(def, _) => is_def_must_use(cx, def.did(), span), - ty::Opaque(def, _) => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id: def, .. }) => { elaborate_predicates_with_span( cx.tcx, cx.tcx.explicit_item_bounds(def).iter().cloned(), diff --git a/compiler/rustc_lint_defs/src/builtin.rs b/compiler/rustc_lint_defs/src/builtin.rs index df0e17dea3c..33cb35e60eb 100644 --- a/compiler/rustc_lint_defs/src/builtin.rs +++ b/compiler/rustc_lint_defs/src/builtin.rs @@ -911,8 +911,7 @@ declare_lint! { declare_lint! { /// The `trivial_casts` lint detects trivial casts which could be replaced - /// with coercion, which may require [type ascription] or a temporary - /// variable. + /// with coercion, which may require a temporary variable. /// /// ### Example /// @@ -934,12 +933,14 @@ declare_lint! { /// with FFI interfaces or complex type aliases, where it triggers /// incorrectly, or in situations where it will be more difficult to /// clearly express the intent. It may be possible that this will become a - /// warning in the future, possibly with [type ascription] providing a - /// convenient way to work around the current issues. See [RFC 401] for - /// historical context. - /// - /// [type ascription]: https://github.com/rust-lang/rust/issues/23416 - /// [RFC 401]: https://github.com/rust-lang/rfcs/blob/master/text/0401-coercions.md + /// warning in the future, possibly with an explicit syntax for coercions + /// providing a convenient way to work around the current issues. + /// See [RFC 401 (coercions)][rfc-401], [RFC 803 (type ascription)][rfc-803] and + /// [RFC 3307 (remove type ascription)][rfc-3307] for historical context. + /// + /// [rfc-401]: https://github.com/rust-lang/rfcs/blob/master/text/0401-coercions.md + /// [rfc-803]: https://github.com/rust-lang/rfcs/blob/master/text/0803-type-ascription.md + /// [rfc-3307]: https://github.com/rust-lang/rfcs/blob/master/text/3307-de-rfc-type-ascription.md pub TRIVIAL_CASTS, Allow, "detects trivial casts which could be removed" @@ -967,12 +968,14 @@ declare_lint! { /// with FFI interfaces or complex type aliases, where it triggers /// incorrectly, or in situations where it will be more difficult to /// clearly express the intent. It may be possible that this will become a - /// warning in the future, possibly with [type ascription] providing a - /// convenient way to work around the current issues. See [RFC 401] for - /// historical context. - /// - /// [type ascription]: https://github.com/rust-lang/rust/issues/23416 - /// [RFC 401]: https://github.com/rust-lang/rfcs/blob/master/text/0401-coercions.md + /// warning in the future, possibly with an explicit syntax for coercions + /// providing a convenient way to work around the current issues. + /// See [RFC 401 (coercions)][rfc-401], [RFC 803 (type ascription)][rfc-803] and + /// [RFC 3307 (remove type ascription)][rfc-3307] for historical context. + /// + /// [rfc-401]: https://github.com/rust-lang/rfcs/blob/master/text/0401-coercions.md + /// [rfc-803]: https://github.com/rust-lang/rfcs/blob/master/text/0803-type-ascription.md + /// [rfc-3307]: https://github.com/rust-lang/rfcs/blob/master/text/3307-de-rfc-type-ascription.md pub TRIVIAL_NUMERIC_CASTS, Allow, "detects trivial casts of numeric types which could be removed" @@ -1017,6 +1020,44 @@ declare_lint! { } declare_lint! { + /// The `invalid_alignment` lint detects dereferences of misaligned pointers during + /// constant evluation. + /// + /// ### Example + /// + /// ```rust,compile_fail + /// #![feature(const_ptr_read)] + /// const FOO: () = unsafe { + /// let x = &[0_u8; 4]; + /// let y = x.as_ptr().cast::<u32>(); + /// y.read(); // the address of a `u8` array is unknown and thus we don't know if + /// // it is aligned enough for reading a `u32`. + /// }; + /// ``` + /// + /// {{produces}} + /// + /// ### Explanation + /// + /// The compiler allowed dereferencing raw pointers irrespective of alignment + /// during const eval due to the const evaluator at the time not making it easy + /// or cheap to check. Now that it is both, this is not accepted anymore. + /// + /// Since it was undefined behaviour to begin with, this breakage does not violate + /// Rust's stability guarantees. Using undefined behaviour can cause arbitrary + /// behaviour, including failure to build. + /// + /// [future-incompatible]: ../index.md#future-incompatible-lints + pub INVALID_ALIGNMENT, + Deny, + "raw pointers must be aligned before dereferencing", + @future_incompatible = FutureIncompatibleInfo { + reference: "issue #68585 <https://github.com/rust-lang/rust/issues/104616>", + reason: FutureIncompatibilityReason::FutureReleaseErrorReportNow, + }; +} + +declare_lint! { /// The `exported_private_dependencies` lint detects private dependencies /// that are exposed in a public interface. /// diff --git a/compiler/rustc_macros/src/diagnostics/diagnostic.rs b/compiler/rustc_macros/src/diagnostics/diagnostic.rs index 684835d8c5c..13f06fe7473 100644 --- a/compiler/rustc_macros/src/diagnostics/diagnostic.rs +++ b/compiler/rustc_macros/src/diagnostics/diagnostic.rs @@ -192,7 +192,7 @@ impl Mismatch { let crate_name = std::env::var("CARGO_CRATE_NAME").ok()?; // If we're not in a "rustc_" crate, bail. - let Some(("rustc", slug_prefix)) = crate_name.split_once("_") else { return None }; + let Some(("rustc", slug_prefix)) = crate_name.split_once('_') else { return None }; let slug_name = slug.segments.first()?.ident.to_string(); if !slug_name.starts_with(slug_prefix) { diff --git a/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs b/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs index 9f2ac5112f1..82f6812026a 100644 --- a/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs +++ b/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs @@ -372,46 +372,21 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> { } } (Meta::Path(_), "subdiagnostic") => { - return Ok(quote! { #diag.subdiagnostic(#binding); }); + if FieldInnerTy::from_type(&info.binding.ast().ty).will_iterate() { + let DiagnosticDeriveKind::Diagnostic { handler } = &self.parent.kind else { + // No eager translation for lints. + return Ok(quote! { #diag.subdiagnostic(#binding); }); + }; + return Ok(quote! { #diag.eager_subdiagnostic(#handler, #binding); }); + } else { + return Ok(quote! { #diag.subdiagnostic(#binding); }); + } } - (Meta::NameValue(_), "subdiagnostic") => { + (Meta::List(_), "subdiagnostic") => { throw_invalid_attr!(attr, &meta, |diag| { - diag.help("`eager` is the only supported nested attribute for `subdiagnostic`") + diag.help("`subdiagnostic` does not support nested attributes") }) } - (Meta::List(MetaList { ref nested, .. }), "subdiagnostic") => { - if nested.len() != 1 { - throw_invalid_attr!(attr, &meta, |diag| { - diag.help( - "`eager` is the only supported nested attribute for `subdiagnostic`", - ) - }) - } - - let handler = match &self.parent.kind { - DiagnosticDeriveKind::Diagnostic { handler } => handler, - DiagnosticDeriveKind::LintDiagnostic => { - throw_invalid_attr!(attr, &meta, |diag| { - diag.help("eager subdiagnostics are not supported on lints") - }) - } - }; - - let nested_attr = nested.first().expect("pop failed for single element list"); - match nested_attr { - NestedMeta::Meta(meta @ Meta::Path(_)) - if meta.path().segments.last().unwrap().ident.to_string().as_str() - == "eager" => - { - return Ok(quote! { #diag.eager_subdiagnostic(#handler, #binding); }); - } - _ => { - throw_invalid_nested_attr!(attr, nested_attr, |diag| { - diag.help("`eager` is the only supported nested attribute for `subdiagnostic`") - }) - } - } - } _ => (), } diff --git a/compiler/rustc_metadata/src/creader.rs b/compiler/rustc_metadata/src/creader.rs index 01d7f3e03c5..9ce3ff98ba9 100644 --- a/compiler/rustc_metadata/src/creader.rs +++ b/compiler/rustc_metadata/src/creader.rs @@ -1,10 +1,9 @@ //! Validates all used crates and extern libraries and loads their metadata use crate::errors::{ - AllocFuncRequired, ConflictingAllocErrorHandler, ConflictingGlobalAlloc, CrateNotPanicRuntime, - GlobalAllocRequired, MissingAllocErrorHandler, NoMultipleAllocErrorHandler, - NoMultipleGlobalAlloc, NoPanicStrategy, NoTransitiveNeedsDep, NotProfilerRuntime, - ProfilerBuiltinsNeedsCore, + ConflictingAllocErrorHandler, ConflictingGlobalAlloc, CrateNotPanicRuntime, + GlobalAllocRequired, NoMultipleAllocErrorHandler, NoMultipleGlobalAlloc, NoPanicStrategy, + NoTransitiveNeedsDep, NotProfilerRuntime, ProfilerBuiltinsNeedsCore, }; use crate::locator::{CrateError, CrateLocator, CratePaths}; use crate::rmeta::{CrateDep, CrateMetadata, CrateNumMap, CrateRoot, MetadataBlob}; @@ -895,10 +894,6 @@ impl<'a> CrateLoader<'a> { } else { // The alloc crate provides a default allocation error handler if // one isn't specified. - if !self.sess.features_untracked().default_alloc_error_handler { - self.sess.emit_err(AllocFuncRequired); - self.sess.emit_note(MissingAllocErrorHandler); - } self.cstore.alloc_error_handler_kind = Some(AllocatorKind::Default); } } diff --git a/compiler/rustc_metadata/src/errors.rs b/compiler/rustc_metadata/src/errors.rs index 6f7e6e09ca5..de2a879f1d7 100644 --- a/compiler/rustc_metadata/src/errors.rs +++ b/compiler/rustc_metadata/src/errors.rs @@ -372,14 +372,6 @@ pub struct ConflictingAllocErrorHandler { pub struct GlobalAllocRequired; #[derive(Diagnostic)] -#[diag(metadata_alloc_func_required)] -pub struct AllocFuncRequired; - -#[derive(Diagnostic)] -#[diag(metadata_missing_alloc_error_handler)] -pub struct MissingAllocErrorHandler; - -#[derive(Diagnostic)] #[diag(metadata_no_transitive_needs_dep)] pub struct NoTransitiveNeedsDep<'a> { pub crate_name: Symbol, diff --git a/compiler/rustc_metadata/src/rmeta/decoder.rs b/compiler/rustc_metadata/src/rmeta/decoder.rs index af7b0793a95..4370d4bd758 100644 --- a/compiler/rustc_metadata/src/rmeta/decoder.rs +++ b/compiler/rustc_metadata/src/rmeta/decoder.rs @@ -1527,13 +1527,15 @@ impl<'a, 'tcx> CrateMetadataRef<'a> { if let Some(virtual_dir) = &sess.opts.unstable_opts.simulate_remapped_rust_src_base { if let Some(real_dir) = &sess.opts.real_rust_source_base_dir { - if let rustc_span::FileName::Real(ref mut old_name) = name { - if let rustc_span::RealFileName::LocalPath(local) = old_name { - if let Ok(rest) = local.strip_prefix(real_dir) { - *old_name = rustc_span::RealFileName::Remapped { - local_path: None, - virtual_name: virtual_dir.join(rest), - }; + for subdir in ["library", "compiler"] { + if let rustc_span::FileName::Real(ref mut old_name) = name { + if let rustc_span::RealFileName::LocalPath(local) = old_name { + if let Ok(rest) = local.strip_prefix(real_dir.join(subdir)) { + *old_name = rustc_span::RealFileName::Remapped { + local_path: None, + virtual_name: virtual_dir.join(subdir).join(rest), + }; + } } } } diff --git a/compiler/rustc_metadata/src/rmeta/encoder.rs b/compiler/rustc_metadata/src/rmeta/encoder.rs index 29f9e82da75..856f5bc4645 100644 --- a/compiler/rustc_metadata/src/rmeta/encoder.rs +++ b/compiler/rustc_metadata/src/rmeta/encoder.rs @@ -1111,8 +1111,8 @@ fn should_encode_trait_impl_trait_tys<'tcx>(tcx: TyCtxt<'tcx>, def_id: DefId) -> // associated types. tcx.fn_sig(trait_item_def_id).skip_binder().output().walk().any(|arg| { if let ty::GenericArgKind::Type(ty) = arg.unpack() - && let ty::Projection(data) = ty.kind() - && tcx.def_kind(data.item_def_id) == DefKind::ImplTraitPlaceholder + && let ty::Alias(ty::Projection, data) = ty.kind() + && tcx.def_kind(data.def_id) == DefKind::ImplTraitPlaceholder { true } else { diff --git a/compiler/rustc_middle/src/arena.rs b/compiler/rustc_middle/src/arena.rs index 6de68841fe9..75282f958b5 100644 --- a/compiler/rustc_middle/src/arena.rs +++ b/compiler/rustc_middle/src/arena.rs @@ -93,7 +93,7 @@ macro_rules! arena_types { // Interned types [] tys: rustc_type_ir::WithCachedTypeInfo<rustc_middle::ty::TyKind<'tcx>>, [] predicates: rustc_type_ir::WithCachedTypeInfo<rustc_middle::ty::PredicateKind<'tcx>>, - [] consts: rustc_middle::ty::ConstS<'tcx>, + [] consts: rustc_middle::ty::ConstData<'tcx>, // Note that this deliberately duplicates items in the `rustc_hir::arena`, // since we need to allocate this type on both the `rustc_hir` arena diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index db4fe6f886b..e909b2f74aa 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -533,6 +533,11 @@ impl<'tcx> Body<'tcx> { }; injection_phase > self.phase } + + #[inline] + pub fn is_custom_mir(&self) -> bool { + self.injection_phase.is_some() + } } #[derive(Copy, Clone, PartialEq, Eq, Debug, TyEncodable, TyDecodable, HashStable)] @@ -1483,7 +1488,7 @@ impl<'tcx> StatementKind<'tcx> { /////////////////////////////////////////////////////////////////////////// // Places -impl<V, T> ProjectionElem<V, T> { +impl<V, T, U> ProjectionElem<V, T, U> { /// Returns `true` if the target of this projection may refer to a different region of memory /// than the base. fn is_indirect(&self) -> bool { @@ -1512,7 +1517,7 @@ impl<V, T> ProjectionElem<V, T> { /// Alias for projections as they appear in `UserTypeProjection`, where we /// need neither the `V` parameter for `Index` nor the `T` for `Field`. -pub type ProjectionKind = ProjectionElem<(), ()>; +pub type ProjectionKind = ProjectionElem<(), (), ()>; rustc_index::newtype_index! { /// A [newtype'd][wrapper] index type in the MIR [control-flow graph][CFG] @@ -1847,7 +1852,7 @@ impl<'tcx> Operand<'tcx> { pub fn function_handle( tcx: TyCtxt<'tcx>, def_id: DefId, - substs: SubstsRef<'tcx>, + substs: impl IntoIterator<Item = GenericArg<'tcx>>, span: Span, ) -> Self { let ty = tcx.mk_fn_def(def_id, substs); diff --git a/compiler/rustc_middle/src/mir/mono.rs b/compiler/rustc_middle/src/mir/mono.rs index 15a24aa4ace..1e8d5f7eae8 100644 --- a/compiler/rustc_middle/src/mir/mono.rs +++ b/compiler/rustc_middle/src/mir/mono.rs @@ -200,6 +200,15 @@ impl<'tcx> MonoItem<'tcx> { MonoItem::GlobalAsm(..) => LOCAL_CRATE, } } + + /// Returns the item's `DefId` + pub fn def_id(&self) -> DefId { + match *self { + MonoItem::Fn(Instance { def, .. }) => def.def_id(), + MonoItem::Static(def_id) => def_id, + MonoItem::GlobalAsm(item_id) => item_id.owner_id.to_def_id(), + } + } } impl<'tcx> fmt::Display for MonoItem<'tcx> { diff --git a/compiler/rustc_middle/src/mir/syntax.rs b/compiler/rustc_middle/src/mir/syntax.rs index 99e59c770d7..a6ca04f5e62 100644 --- a/compiler/rustc_middle/src/mir/syntax.rs +++ b/compiler/rustc_middle/src/mir/syntax.rs @@ -890,11 +890,18 @@ pub struct Place<'tcx> { pub projection: &'tcx List<PlaceElem<'tcx>>, } +/// The different kinds of projections that can be used in the projection of a `Place`. +/// +/// `T1` is the generic type for a field projection. For an actual projection on a `Place` +/// this parameter will always be `Ty`, but the field type can be unavailable when +/// building (by using `PlaceBuilder`) places that correspond to upvars. +/// `T2` is the generic type for an `OpaqueCast` (is generic since it's abstracted over +/// in dataflow analysis, see `AbstractElem`). #[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)] #[derive(TyEncodable, TyDecodable, HashStable, TypeFoldable, TypeVisitable)] -pub enum ProjectionElem<V, T> { +pub enum ProjectionElem<V, T1, T2> { Deref, - Field(Field, T), + Field(Field, T1), /// Index into a slice/array. /// /// Note that this does not also dereference, and so it does not exactly correspond to slice @@ -950,12 +957,36 @@ pub enum ProjectionElem<V, T> { /// Like an explicit cast from an opaque type to a concrete type, but without /// requiring an intermediate variable. - OpaqueCast(T), + OpaqueCast(T2), } /// Alias for projections as they appear in places, where the base is a place /// and the index is a local. -pub type PlaceElem<'tcx> = ProjectionElem<Local, Ty<'tcx>>; +pub type PlaceElem<'tcx> = ProjectionElem<Local, Ty<'tcx>, Ty<'tcx>>; + +/// Alias for projections that appear in `PlaceBuilder::Upvar`, for which +/// we cannot provide any field types. +pub type UpvarProjectionElem<'tcx> = ProjectionElem<Local, (), Ty<'tcx>>; + +impl<'tcx> From<PlaceElem<'tcx>> for UpvarProjectionElem<'tcx> { + fn from(elem: PlaceElem<'tcx>) -> Self { + match elem { + ProjectionElem::Deref => ProjectionElem::Deref, + ProjectionElem::Field(field, _) => ProjectionElem::Field(field, ()), + ProjectionElem::Index(v) => ProjectionElem::Index(v), + ProjectionElem::ConstantIndex { offset, min_length, from_end } => { + ProjectionElem::ConstantIndex { offset, min_length, from_end } + } + ProjectionElem::Subslice { from, to, from_end } => { + ProjectionElem::Subslice { from, to, from_end } + } + ProjectionElem::Downcast(opt_sym, variant_idx) => { + ProjectionElem::Downcast(opt_sym, variant_idx) + } + ProjectionElem::OpaqueCast(ty) => ProjectionElem::OpaqueCast(ty), + } + } +} /////////////////////////////////////////////////////////////////////////// // Operands diff --git a/compiler/rustc_middle/src/mir/tcx.rs b/compiler/rustc_middle/src/mir/tcx.rs index fa3adafd4b8..e3ca1f41d7e 100644 --- a/compiler/rustc_middle/src/mir/tcx.rs +++ b/compiler/rustc_middle/src/mir/tcx.rs @@ -28,8 +28,8 @@ impl<'tcx> PlaceTy<'tcx> { /// `place_ty.field_ty(tcx, f)` computes the type at a given field /// of a record or enum-variant. (Most clients of `PlaceTy` can /// instead just extract the relevant type directly from their - /// `PlaceElem`, but some instances of `ProjectionElem<V, T>` do - /// not carry a `Ty` for `T`.) + /// `PlaceElem`, but some instances of `ProjectionElem<V, T1, T2>` do + /// not carry a `Ty` for `T1` or `T2`.) /// /// Note that the resulting type has not been normalized. pub fn field_ty(self, tcx: TyCtxt<'tcx>, f: Field) -> Ty<'tcx> { @@ -64,17 +64,18 @@ impl<'tcx> PlaceTy<'tcx> { /// `Ty` or downcast variant corresponding to that projection. /// The `handle_field` callback must map a `Field` to its `Ty`, /// (which should be trivial when `T` = `Ty`). - pub fn projection_ty_core<V, T>( + pub fn projection_ty_core<V, T1, T2>( self, tcx: TyCtxt<'tcx>, param_env: ty::ParamEnv<'tcx>, - elem: &ProjectionElem<V, T>, - mut handle_field: impl FnMut(&Self, Field, T) -> Ty<'tcx>, - mut handle_opaque_cast: impl FnMut(&Self, T) -> Ty<'tcx>, + elem: &ProjectionElem<V, T1, T2>, + mut handle_field: impl FnMut(&Self, Field, T1) -> Ty<'tcx>, + mut handle_opaque_cast: impl FnMut(&Self, T2) -> Ty<'tcx>, ) -> PlaceTy<'tcx> where V: ::std::fmt::Debug, - T: ::std::fmt::Debug + Copy, + T1: ::std::fmt::Debug + Copy, + T2: ::std::fmt::Debug + Copy, { if self.variant_index.is_some() && !matches!(elem, ProjectionElem::Field(..)) { bug!("cannot use non field projection on downcasted place") diff --git a/compiler/rustc_middle/src/query/keys.rs b/compiler/rustc_middle/src/query/keys.rs index 880632561b9..e4bb3ce3d5a 100644 --- a/compiler/rustc_middle/src/query/keys.rs +++ b/compiler/rustc_middle/src/query/keys.rs @@ -15,7 +15,15 @@ use rustc_span::{Span, DUMMY_SP}; /// The `Key` trait controls what types can legally be used as the key /// for a query. pub trait Key: Sized { - type CacheSelector = DefaultCacheSelector<Self>; + // N.B. Most of the keys down below have `type CacheSelector = DefaultCacheSelector<Self>;`, + // it would be reasonable to use associated type defaults, to remove the duplication... + // + // ...But r-a doesn't support them yet and using a default here causes r-a to not infer + // return types of queries which is very annoying. Thus, until r-a support associated + // type defaults, plese restrain from using them here <3 + // + // r-a issue: <https://github.com/rust-lang/rust-analyzer/issues/13693> + type CacheSelector; /// Given an instance of this key, what crate is it referring to? /// This is used to find the provider. @@ -37,6 +45,8 @@ pub trait Key: Sized { } impl Key for () { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -48,6 +58,8 @@ impl Key for () { } impl<'tcx> Key for ty::InstanceDef<'tcx> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -59,6 +71,8 @@ impl<'tcx> Key for ty::InstanceDef<'tcx> { } impl<'tcx> Key for ty::Instance<'tcx> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -70,6 +84,8 @@ impl<'tcx> Key for ty::Instance<'tcx> { } impl<'tcx> Key for mir::interpret::GlobalId<'tcx> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -81,6 +97,8 @@ impl<'tcx> Key for mir::interpret::GlobalId<'tcx> { } impl<'tcx> Key for (Ty<'tcx>, Option<ty::PolyExistentialTraitRef<'tcx>>) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -92,6 +110,8 @@ impl<'tcx> Key for (Ty<'tcx>, Option<ty::PolyExistentialTraitRef<'tcx>>) { } impl<'tcx> Key for mir::interpret::LitToConstInput<'tcx> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -145,6 +165,8 @@ impl Key for LocalDefId { } impl Key for DefId { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { self.krate == LOCAL_CRATE @@ -159,6 +181,8 @@ impl Key for DefId { } impl Key for ty::WithOptConstParam<LocalDefId> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -169,6 +193,8 @@ impl Key for ty::WithOptConstParam<LocalDefId> { } impl Key for SimplifiedType { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -179,6 +205,8 @@ impl Key for SimplifiedType { } impl Key for (DefId, DefId) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { self.0.krate == LOCAL_CRATE @@ -189,6 +217,8 @@ impl Key for (DefId, DefId) { } impl<'tcx> Key for (ty::Instance<'tcx>, LocalDefId) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -199,6 +229,8 @@ impl<'tcx> Key for (ty::Instance<'tcx>, LocalDefId) { } impl Key for (DefId, LocalDefId) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { self.0.krate == LOCAL_CRATE @@ -209,6 +241,8 @@ impl Key for (DefId, LocalDefId) { } impl Key for (LocalDefId, DefId) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -219,6 +253,8 @@ impl Key for (LocalDefId, DefId) { } impl Key for (LocalDefId, LocalDefId) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -229,6 +265,8 @@ impl Key for (LocalDefId, LocalDefId) { } impl Key for (DefId, Option<Ident>) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { self.0.krate == LOCAL_CRATE @@ -243,6 +281,8 @@ impl Key for (DefId, Option<Ident>) { } impl Key for (DefId, LocalDefId, Ident) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { self.0.krate == LOCAL_CRATE @@ -253,6 +293,8 @@ impl Key for (DefId, LocalDefId, Ident) { } impl Key for (CrateNum, DefId) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { self.0 == LOCAL_CRATE @@ -263,6 +305,8 @@ impl Key for (CrateNum, DefId) { } impl Key for (CrateNum, SimplifiedType) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { self.0 == LOCAL_CRATE @@ -273,6 +317,8 @@ impl Key for (CrateNum, SimplifiedType) { } impl Key for (DefId, SimplifiedType) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { self.0.krate == LOCAL_CRATE @@ -283,6 +329,8 @@ impl Key for (DefId, SimplifiedType) { } impl<'tcx> Key for SubstsRef<'tcx> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -293,6 +341,8 @@ impl<'tcx> Key for SubstsRef<'tcx> { } impl<'tcx> Key for (DefId, SubstsRef<'tcx>) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { self.0.krate == LOCAL_CRATE @@ -303,6 +353,8 @@ impl<'tcx> Key for (DefId, SubstsRef<'tcx>) { } impl<'tcx> Key for (ty::UnevaluatedConst<'tcx>, ty::UnevaluatedConst<'tcx>) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { (self.0).def.did.krate == LOCAL_CRATE @@ -313,6 +365,8 @@ impl<'tcx> Key for (ty::UnevaluatedConst<'tcx>, ty::UnevaluatedConst<'tcx>) { } impl<'tcx> Key for (LocalDefId, DefId, SubstsRef<'tcx>) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -323,6 +377,8 @@ impl<'tcx> Key for (LocalDefId, DefId, SubstsRef<'tcx>) { } impl<'tcx> Key for (ty::ParamEnv<'tcx>, ty::PolyTraitRef<'tcx>) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { self.1.def_id().krate == LOCAL_CRATE @@ -333,6 +389,8 @@ impl<'tcx> Key for (ty::ParamEnv<'tcx>, ty::PolyTraitRef<'tcx>) { } impl<'tcx> Key for (ty::Const<'tcx>, mir::Field) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -343,6 +401,8 @@ impl<'tcx> Key for (ty::Const<'tcx>, mir::Field) { } impl<'tcx> Key for mir::interpret::ConstAlloc<'tcx> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -353,6 +413,8 @@ impl<'tcx> Key for mir::interpret::ConstAlloc<'tcx> { } impl<'tcx> Key for ty::PolyTraitRef<'tcx> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { self.def_id().krate == LOCAL_CRATE @@ -363,6 +425,8 @@ impl<'tcx> Key for ty::PolyTraitRef<'tcx> { } impl<'tcx> Key for ty::PolyExistentialTraitRef<'tcx> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { self.def_id().krate == LOCAL_CRATE @@ -373,6 +437,8 @@ impl<'tcx> Key for ty::PolyExistentialTraitRef<'tcx> { } impl<'tcx> Key for (ty::PolyTraitRef<'tcx>, ty::PolyTraitRef<'tcx>) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { self.0.def_id().krate == LOCAL_CRATE @@ -383,6 +449,8 @@ impl<'tcx> Key for (ty::PolyTraitRef<'tcx>, ty::PolyTraitRef<'tcx>) { } impl<'tcx> Key for GenericArg<'tcx> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -393,6 +461,8 @@ impl<'tcx> Key for GenericArg<'tcx> { } impl<'tcx> Key for mir::ConstantKind<'tcx> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -403,6 +473,8 @@ impl<'tcx> Key for mir::ConstantKind<'tcx> { } impl<'tcx> Key for ty::Const<'tcx> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -413,6 +485,8 @@ impl<'tcx> Key for ty::Const<'tcx> { } impl<'tcx> Key for Ty<'tcx> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -429,6 +503,8 @@ impl<'tcx> Key for Ty<'tcx> { } impl<'tcx> Key for TyAndLayout<'tcx> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -439,6 +515,8 @@ impl<'tcx> Key for TyAndLayout<'tcx> { } impl<'tcx> Key for (Ty<'tcx>, Ty<'tcx>) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -449,6 +527,8 @@ impl<'tcx> Key for (Ty<'tcx>, Ty<'tcx>) { } impl<'tcx> Key for &'tcx ty::List<ty::Predicate<'tcx>> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -459,6 +539,8 @@ impl<'tcx> Key for &'tcx ty::List<ty::Predicate<'tcx>> { } impl<'tcx> Key for ty::ParamEnv<'tcx> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -469,6 +551,8 @@ impl<'tcx> Key for ty::ParamEnv<'tcx> { } impl<'tcx, T: Key> Key for ty::ParamEnvAnd<'tcx, T> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { self.value.query_crate_is_local() @@ -479,6 +563,8 @@ impl<'tcx, T: Key> Key for ty::ParamEnvAnd<'tcx, T> { } impl Key for Symbol { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -489,6 +575,8 @@ impl Key for Symbol { } impl Key for Option<Symbol> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -501,6 +589,8 @@ impl Key for Option<Symbol> { /// Canonical query goals correspond to abstract trait operations that /// are not tied to any crate in particular. impl<'tcx, T> Key for Canonical<'tcx, T> { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -512,6 +602,8 @@ impl<'tcx, T> Key for Canonical<'tcx, T> { } impl Key for (Symbol, u32, u32) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -523,6 +615,8 @@ impl Key for (Symbol, u32, u32) { } impl<'tcx> Key for (DefId, Ty<'tcx>, SubstsRef<'tcx>, ty::ParamEnv<'tcx>) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -534,6 +628,8 @@ impl<'tcx> Key for (DefId, Ty<'tcx>, SubstsRef<'tcx>, ty::ParamEnv<'tcx>) { } impl<'tcx> Key for (ty::Predicate<'tcx>, traits::WellFormedLoc) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -545,6 +641,8 @@ impl<'tcx> Key for (ty::Predicate<'tcx>, traits::WellFormedLoc) { } impl<'tcx> Key for (ty::PolyFnSig<'tcx>, &'tcx ty::List<Ty<'tcx>>) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -556,6 +654,8 @@ impl<'tcx> Key for (ty::PolyFnSig<'tcx>, &'tcx ty::List<Ty<'tcx>>) { } impl<'tcx> Key for (ty::Instance<'tcx>, &'tcx ty::List<Ty<'tcx>>) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -567,6 +667,8 @@ impl<'tcx> Key for (ty::Instance<'tcx>, &'tcx ty::List<Ty<'tcx>>) { } impl<'tcx> Key for (Ty<'tcx>, ty::ValTree<'tcx>) { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true @@ -578,6 +680,8 @@ impl<'tcx> Key for (Ty<'tcx>, ty::ValTree<'tcx>) { } impl Key for HirId { + type CacheSelector = DefaultCacheSelector<Self>; + #[inline(always)] fn query_crate_is_local(&self) -> bool { true diff --git a/compiler/rustc_middle/src/traits/mod.rs b/compiler/rustc_middle/src/traits/mod.rs index 143435cb2a1..d00b26a5a3d 100644 --- a/compiler/rustc_middle/src/traits/mod.rs +++ b/compiler/rustc_middle/src/traits/mod.rs @@ -250,7 +250,7 @@ pub enum ObligationCauseCode<'tcx> { TupleElem, /// This is the trait reference from the given projection. - ProjectionWf(ty::ProjectionTy<'tcx>), + ProjectionWf(ty::AliasTy<'tcx>), /// Must satisfy all of the where-clause predicates of the /// given item. diff --git a/compiler/rustc_middle/src/traits/query.rs b/compiler/rustc_middle/src/traits/query.rs index d40d7de5f31..7380c62a669 100644 --- a/compiler/rustc_middle/src/traits/query.rs +++ b/compiler/rustc_middle/src/traits/query.rs @@ -76,8 +76,7 @@ pub mod type_op { } } -pub type CanonicalProjectionGoal<'tcx> = - Canonical<'tcx, ty::ParamEnvAnd<'tcx, ty::ProjectionTy<'tcx>>>; +pub type CanonicalProjectionGoal<'tcx> = Canonical<'tcx, ty::ParamEnvAnd<'tcx, ty::AliasTy<'tcx>>>; pub type CanonicalTyGoal<'tcx> = Canonical<'tcx, ty::ParamEnvAnd<'tcx, Ty<'tcx>>>; @@ -218,6 +217,6 @@ pub struct NormalizationResult<'tcx> { pub enum OutlivesBound<'tcx> { RegionSubRegion(ty::Region<'tcx>, ty::Region<'tcx>), RegionSubParam(ty::Region<'tcx>, ty::ParamTy), - RegionSubProjection(ty::Region<'tcx>, ty::ProjectionTy<'tcx>), + RegionSubProjection(ty::Region<'tcx>, ty::AliasTy<'tcx>), RegionSubOpaque(ty::Region<'tcx>, DefId, SubstsRef<'tcx>), } diff --git a/compiler/rustc_middle/src/ty/adjustment.rs b/compiler/rustc_middle/src/ty/adjustment.rs index 7036c4a7b27..8ce06404de0 100644 --- a/compiler/rustc_middle/src/ty/adjustment.rs +++ b/compiler/rustc_middle/src/ty/adjustment.rs @@ -131,7 +131,7 @@ impl<'tcx> OverloadedDeref<'tcx> { .find(|m| m.kind == ty::AssocKind::Fn) .unwrap() .def_id; - tcx.mk_fn_def(method_def_id, tcx.mk_substs_trait(source, [])) + tcx.mk_fn_def(method_def_id, [source]) } } diff --git a/compiler/rustc_middle/src/ty/codec.rs b/compiler/rustc_middle/src/ty/codec.rs index 75f2d45eadb..8cc8286c1db 100644 --- a/compiler/rustc_middle/src/ty/codec.rs +++ b/compiler/rustc_middle/src/ty/codec.rs @@ -310,7 +310,7 @@ impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> RefDecodable<'tcx, D> impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for ty::Const<'tcx> { fn decode(decoder: &mut D) -> Self { - let consts: ty::ConstS<'tcx> = Decodable::decode(decoder); + let consts: ty::ConstData<'tcx> = Decodable::decode(decoder); decoder.interner().mk_const(consts.kind, consts.ty) } } diff --git a/compiler/rustc_middle/src/ty/consts.rs b/compiler/rustc_middle/src/ty/consts.rs index c2be08e497e..e5abc38046c 100644 --- a/compiler/rustc_middle/src/ty/consts.rs +++ b/compiler/rustc_middle/src/ty/consts.rs @@ -14,10 +14,10 @@ pub use int::*; pub use kind::*; pub use valtree::*; -/// Use this rather than `ConstS`, whenever possible. +/// Use this rather than `ConstData, whenever possible. #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, HashStable)] #[rustc_pass_by_value] -pub struct Const<'tcx>(pub Interned<'tcx, ConstS<'tcx>>); +pub struct Const<'tcx>(pub(super) Interned<'tcx, ConstData<'tcx>>); impl<'tcx> fmt::Debug for Const<'tcx> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { @@ -30,13 +30,13 @@ impl<'tcx> fmt::Debug for Const<'tcx> { /// Typed constant value. #[derive(PartialEq, Eq, PartialOrd, Ord, Hash, HashStable, TyEncodable, TyDecodable)] -pub struct ConstS<'tcx> { +pub struct ConstData<'tcx> { pub ty: Ty<'tcx>, pub kind: ConstKind<'tcx>, } #[cfg(all(target_arch = "x86_64", target_pointer_width = "64"))] -static_assert_size!(ConstS<'_>, 40); +static_assert_size!(ConstData<'_>, 40); impl<'tcx> Const<'tcx> { #[inline] diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index 7d4971d1e9e..8f4d56c65b9 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -4,8 +4,7 @@ use crate::arena::Arena; use crate::dep_graph::{DepGraph, DepKindStruct}; -use crate::hir::place::Place as HirPlace; -use crate::infer::canonical::{Canonical, CanonicalVarInfo, CanonicalVarInfos}; +use crate::infer::canonical::{CanonicalVarInfo, CanonicalVarInfos}; use crate::lint::struct_lint_level; use crate::middle::codegen_fn_attrs::CodegenFnAttrs; use crate::middle::resolve_lifetime; @@ -18,14 +17,13 @@ use crate::thir::Thir; use crate::traits; use crate::ty::query::{self, TyCtxtAt}; use crate::ty::{ - self, AdtDef, AdtDefData, AdtKind, Binder, BindingMode, BoundVar, CanonicalPolyFnSig, - ClosureSizeProfileData, Const, ConstS, DefIdTree, FloatTy, FloatVar, FloatVid, - GenericParamDefKind, InferTy, IntTy, IntVar, IntVid, List, ParamConst, ParamTy, - PolyExistentialPredicate, PolyFnSig, Predicate, PredicateKind, ProjectionTy, Region, - RegionKind, ReprOptions, TraitObjectVisitor, Ty, TyKind, TyVar, TyVid, TypeAndMut, UintTy, + self, AdtDef, AdtDefData, AdtKind, Binder, Const, ConstData, DefIdTree, FloatTy, FloatVar, + FloatVid, GenericParamDefKind, ImplPolarity, InferTy, IntTy, IntVar, IntVid, List, ParamConst, + ParamTy, PolyExistentialPredicate, PolyFnSig, Predicate, PredicateKind, Region, RegionKind, + ReprOptions, TraitObjectVisitor, Ty, TyKind, TyVar, TyVid, TypeAndMut, TypeckResults, UintTy, Visibility, }; -use crate::ty::{GenericArg, GenericArgKind, InternalSubsts, SubstsRef, UserSubsts}; +use crate::ty::{GenericArg, InternalSubsts, SubstsRef}; use rustc_ast as ast; use rustc_data_structures::fingerprint::Fingerprint; use rustc_data_structures::fx::{FxHashMap, FxHashSet}; @@ -36,25 +34,20 @@ use rustc_data_structures::sharded::{IntoPointer, ShardedHashMap}; use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; use rustc_data_structures::steal::Steal; use rustc_data_structures::sync::{self, Lock, Lrc, ReadGuard, WorkerLocal}; -use rustc_data_structures::unord::UnordSet; -use rustc_data_structures::vec_map::VecMap; use rustc_errors::{ DecorateLint, DiagnosticBuilder, DiagnosticMessage, ErrorGuaranteed, MultiSpan, }; use rustc_hir as hir; -use rustc_hir::def::{DefKind, Res}; -use rustc_hir::def_id::{CrateNum, DefId, LocalDefId, LocalDefIdMap, LOCAL_CRATE}; +use rustc_hir::def::DefKind; +use rustc_hir::def_id::{CrateNum, DefId, LocalDefId, LOCAL_CRATE}; use rustc_hir::definitions::Definitions; -use rustc_hir::hir_id::OwnerId; use rustc_hir::intravisit::Visitor; use rustc_hir::lang_items::LangItem; use rustc_hir::{ - Constness, ExprKind, HirId, ImplItemKind, ItemKind, ItemLocalId, ItemLocalMap, ItemLocalSet, - Node, TraitCandidate, TraitItemKind, + Constness, ExprKind, HirId, ImplItemKind, ItemKind, Node, TraitCandidate, TraitItemKind, }; -use rustc_index::vec::{Idx, IndexVec}; +use rustc_index::vec::IndexVec; use rustc_macros::HashStable; -use rustc_middle::mir::FakeReadCause; use rustc_query_system::dep_graph::DepNodeIndex; use rustc_query_system::ich::StableHashingContext; use rustc_serialize::opaque::{FileEncodeResult, FileEncoder}; @@ -76,7 +69,6 @@ use rustc_type_ir::{DynKind, InternAs, InternIteratorElement, Interner, TypeFlag use std::any::Any; use std::borrow::Borrow; use std::cmp::Ordering; -use std::collections::hash_map::{self, Entry}; use std::fmt; use std::hash::{Hash, Hasher}; use std::iter; @@ -84,8 +76,6 @@ use std::mem; use std::ops::{Bound, Deref}; use std::sync::Arc; -use super::{ImplPolarity, RvalueScopes}; - pub trait OnDiskCache<'tcx>: rustc_data_structures::sync::Sync { /// Creates a new `OnDiskCache` instance from the serialized data in `data`. fn new(sess: &'tcx Session, data: Mmap, start_pos: usize) -> Self @@ -116,7 +106,7 @@ impl<'tcx> Interner for TyCtxt<'tcx> { type ListBinderExistentialPredicate = &'tcx List<PolyExistentialPredicate<'tcx>>; type BinderListTy = Binder<'tcx, &'tcx List<Ty<'tcx>>>; type ListTy = &'tcx List<Ty<'tcx>>; - type ProjectionTy = ty::ProjectionTy<'tcx>; + type AliasTy = ty::AliasTy<'tcx>; type ParamTy = ParamTy; type BoundTy = ty::BoundTy; type PlaceholderType = ty::PlaceholderType; @@ -150,7 +140,7 @@ pub struct CtxtInterners<'tcx> { predicates: InternedSet<'tcx, List<Predicate<'tcx>>>, projs: InternedSet<'tcx, List<ProjectionKind>>, place_elems: InternedSet<'tcx, List<PlaceElem<'tcx>>>, - const_: InternedSet<'tcx, ConstS<'tcx>>, + const_: InternedSet<'tcx, ConstData<'tcx>>, const_allocation: InternedSet<'tcx, Allocation>, bound_variable_kinds: InternedSet<'tcx, List<ty::BoundVariableKind>>, layout: InternedSet<'tcx, LayoutS<VariantIdx>>, @@ -285,666 +275,6 @@ pub struct CommonConsts<'tcx> { pub unit: Const<'tcx>, } -pub struct LocalTableInContext<'a, V> { - hir_owner: OwnerId, - data: &'a ItemLocalMap<V>, -} - -/// Validate that the given HirId (respectively its `local_id` part) can be -/// safely used as a key in the maps of a TypeckResults. For that to be -/// the case, the HirId must have the same `owner` as all the other IDs in -/// this table (signified by `hir_owner`). Otherwise the HirId -/// would be in a different frame of reference and using its `local_id` -/// would result in lookup errors, or worse, in silently wrong data being -/// stored/returned. -#[inline] -fn validate_hir_id_for_typeck_results(hir_owner: OwnerId, hir_id: hir::HirId) { - if hir_id.owner != hir_owner { - invalid_hir_id_for_typeck_results(hir_owner, hir_id); - } -} - -#[cold] -#[inline(never)] -fn invalid_hir_id_for_typeck_results(hir_owner: OwnerId, hir_id: hir::HirId) { - ty::tls::with(|tcx| { - bug!( - "node {} with HirId::owner {:?} cannot be placed in TypeckResults with hir_owner {:?}", - tcx.hir().node_to_string(hir_id), - hir_id.owner, - hir_owner - ) - }); -} - -impl<'a, V> LocalTableInContext<'a, V> { - pub fn contains_key(&self, id: hir::HirId) -> bool { - validate_hir_id_for_typeck_results(self.hir_owner, id); - self.data.contains_key(&id.local_id) - } - - pub fn get(&self, id: hir::HirId) -> Option<&V> { - validate_hir_id_for_typeck_results(self.hir_owner, id); - self.data.get(&id.local_id) - } - - pub fn iter(&self) -> hash_map::Iter<'_, hir::ItemLocalId, V> { - self.data.iter() - } -} - -impl<'a, V> ::std::ops::Index<hir::HirId> for LocalTableInContext<'a, V> { - type Output = V; - - fn index(&self, key: hir::HirId) -> &V { - self.get(key).expect("LocalTableInContext: key not found") - } -} - -pub struct LocalTableInContextMut<'a, V> { - hir_owner: OwnerId, - data: &'a mut ItemLocalMap<V>, -} - -impl<'a, V> LocalTableInContextMut<'a, V> { - pub fn get_mut(&mut self, id: hir::HirId) -> Option<&mut V> { - validate_hir_id_for_typeck_results(self.hir_owner, id); - self.data.get_mut(&id.local_id) - } - - pub fn entry(&mut self, id: hir::HirId) -> Entry<'_, hir::ItemLocalId, V> { - validate_hir_id_for_typeck_results(self.hir_owner, id); - self.data.entry(id.local_id) - } - - pub fn insert(&mut self, id: hir::HirId, val: V) -> Option<V> { - validate_hir_id_for_typeck_results(self.hir_owner, id); - self.data.insert(id.local_id, val) - } - - pub fn remove(&mut self, id: hir::HirId) -> Option<V> { - validate_hir_id_for_typeck_results(self.hir_owner, id); - self.data.remove(&id.local_id) - } -} - -/// Whenever a value may be live across a generator yield, the type of that value winds up in the -/// `GeneratorInteriorTypeCause` struct. This struct adds additional information about such -/// captured types that can be useful for diagnostics. In particular, it stores the span that -/// caused a given type to be recorded, along with the scope that enclosed the value (which can -/// be used to find the await that the value is live across). -/// -/// For example: -/// -/// ```ignore (pseudo-Rust) -/// async move { -/// let x: T = expr; -/// foo.await -/// ... -/// } -/// ``` -/// -/// Here, we would store the type `T`, the span of the value `x`, the "scope-span" for -/// the scope that contains `x`, the expr `T` evaluated from, and the span of `foo.await`. -#[derive(TyEncodable, TyDecodable, Clone, Debug, Eq, Hash, PartialEq, HashStable)] -#[derive(TypeFoldable, TypeVisitable)] -pub struct GeneratorInteriorTypeCause<'tcx> { - /// Type of the captured binding. - pub ty: Ty<'tcx>, - /// Span of the binding that was captured. - pub span: Span, - /// Span of the scope of the captured binding. - pub scope_span: Option<Span>, - /// Span of `.await` or `yield` expression. - pub yield_span: Span, - /// Expr which the type evaluated from. - pub expr: Option<hir::HirId>, -} - -// This type holds diagnostic information on generators and async functions across crate boundaries -// and is used to provide better error messages -#[derive(TyEncodable, TyDecodable, Clone, Debug, HashStable)] -pub struct GeneratorDiagnosticData<'tcx> { - pub generator_interior_types: ty::Binder<'tcx, Vec<GeneratorInteriorTypeCause<'tcx>>>, - pub hir_owner: DefId, - pub nodes_types: ItemLocalMap<Ty<'tcx>>, - pub adjustments: ItemLocalMap<Vec<ty::adjustment::Adjustment<'tcx>>>, -} - -#[derive(TyEncodable, TyDecodable, Debug, HashStable)] -pub struct TypeckResults<'tcx> { - /// The `HirId::owner` all `ItemLocalId`s in this table are relative to. - pub hir_owner: OwnerId, - - /// Resolved definitions for `<T>::X` associated paths and - /// method calls, including those of overloaded operators. - type_dependent_defs: ItemLocalMap<Result<(DefKind, DefId), ErrorGuaranteed>>, - - /// Resolved field indices for field accesses in expressions (`S { field }`, `obj.field`) - /// or patterns (`S { field }`). The index is often useful by itself, but to learn more - /// about the field you also need definition of the variant to which the field - /// belongs, but it may not exist if it's a tuple field (`tuple.0`). - field_indices: ItemLocalMap<usize>, - - /// Stores the types for various nodes in the AST. Note that this table - /// is not guaranteed to be populated outside inference. See - /// typeck::check::fn_ctxt for details. - node_types: ItemLocalMap<Ty<'tcx>>, - - /// Stores the type parameters which were substituted to obtain the type - /// of this node. This only applies to nodes that refer to entities - /// parameterized by type parameters, such as generic fns, types, or - /// other items. - node_substs: ItemLocalMap<SubstsRef<'tcx>>, - - /// This will either store the canonicalized types provided by the user - /// or the substitutions that the user explicitly gave (if any) attached - /// to `id`. These will not include any inferred values. The canonical form - /// is used to capture things like `_` or other unspecified values. - /// - /// For example, if the user wrote `foo.collect::<Vec<_>>()`, then the - /// canonical substitutions would include only `for<X> { Vec<X> }`. - /// - /// See also `AscribeUserType` statement in MIR. - user_provided_types: ItemLocalMap<CanonicalUserType<'tcx>>, - - /// Stores the canonicalized types provided by the user. See also - /// `AscribeUserType` statement in MIR. - pub user_provided_sigs: LocalDefIdMap<CanonicalPolyFnSig<'tcx>>, - - adjustments: ItemLocalMap<Vec<ty::adjustment::Adjustment<'tcx>>>, - - /// Stores the actual binding mode for all instances of hir::BindingAnnotation. - pat_binding_modes: ItemLocalMap<BindingMode>, - - /// Stores the types which were implicitly dereferenced in pattern binding modes - /// for later usage in THIR lowering. For example, - /// - /// ``` - /// match &&Some(5i32) { - /// Some(n) => {}, - /// _ => {}, - /// } - /// ``` - /// leads to a `vec![&&Option<i32>, &Option<i32>]`. Empty vectors are not stored. - /// - /// See: - /// <https://github.com/rust-lang/rfcs/blob/master/text/2005-match-ergonomics.md#definitions> - pat_adjustments: ItemLocalMap<Vec<Ty<'tcx>>>, - - /// Records the reasons that we picked the kind of each closure; - /// not all closures are present in the map. - closure_kind_origins: ItemLocalMap<(Span, HirPlace<'tcx>)>, - - /// For each fn, records the "liberated" types of its arguments - /// and return type. Liberated means that all bound regions - /// (including late-bound regions) are replaced with free - /// equivalents. This table is not used in codegen (since regions - /// are erased there) and hence is not serialized to metadata. - /// - /// This table also contains the "revealed" values for any `impl Trait` - /// that appear in the signature and whose values are being inferred - /// by this function. - /// - /// # Example - /// - /// ```rust - /// # use std::fmt::Debug; - /// fn foo(x: &u32) -> impl Debug { *x } - /// ``` - /// - /// The function signature here would be: - /// - /// ```ignore (illustrative) - /// for<'a> fn(&'a u32) -> Foo - /// ``` - /// - /// where `Foo` is an opaque type created for this function. - /// - /// - /// The *liberated* form of this would be - /// - /// ```ignore (illustrative) - /// fn(&'a u32) -> u32 - /// ``` - /// - /// Note that `'a` is not bound (it would be an `ReFree`) and - /// that the `Foo` opaque type is replaced by its hidden type. - liberated_fn_sigs: ItemLocalMap<ty::FnSig<'tcx>>, - - /// For each FRU expression, record the normalized types of the fields - /// of the struct - this is needed because it is non-trivial to - /// normalize while preserving regions. This table is used only in - /// MIR construction and hence is not serialized to metadata. - fru_field_types: ItemLocalMap<Vec<Ty<'tcx>>>, - - /// For every coercion cast we add the HIR node ID of the cast - /// expression to this set. - coercion_casts: ItemLocalSet, - - /// Set of trait imports actually used in the method resolution. - /// This is used for warning unused imports. During type - /// checking, this `Lrc` should not be cloned: it must have a ref-count - /// of 1 so that we can insert things into the set mutably. - pub used_trait_imports: Lrc<UnordSet<LocalDefId>>, - - /// If any errors occurred while type-checking this body, - /// this field will be set to `Some(ErrorGuaranteed)`. - pub tainted_by_errors: Option<ErrorGuaranteed>, - - /// All the opaque types that have hidden types set - /// by this function. We also store the - /// type here, so that mir-borrowck can use it as a hint for figuring out hidden types, - /// even if they are only set in dead code (which doesn't show up in MIR). - pub concrete_opaque_types: VecMap<LocalDefId, ty::OpaqueHiddenType<'tcx>>, - - /// Tracks the minimum captures required for a closure; - /// see `MinCaptureInformationMap` for more details. - pub closure_min_captures: ty::MinCaptureInformationMap<'tcx>, - - /// Tracks the fake reads required for a closure and the reason for the fake read. - /// When performing pattern matching for closures, there are times we don't end up - /// reading places that are mentioned in a closure (because of _ patterns). However, - /// to ensure the places are initialized, we introduce fake reads. - /// Consider these two examples: - /// ``` (discriminant matching with only wildcard arm) - /// let x: u8; - /// let c = || match x { _ => () }; - /// ``` - /// In this example, we don't need to actually read/borrow `x` in `c`, and so we don't - /// want to capture it. However, we do still want an error here, because `x` should have - /// to be initialized at the point where c is created. Therefore, we add a "fake read" - /// instead. - /// ``` (destructured assignments) - /// let c = || { - /// let (t1, t2) = t; - /// } - /// ``` - /// In the second example, we capture the disjoint fields of `t` (`t.0` & `t.1`), but - /// we never capture `t`. This becomes an issue when we build MIR as we require - /// information on `t` in order to create place `t.0` and `t.1`. We can solve this - /// issue by fake reading `t`. - pub closure_fake_reads: FxHashMap<LocalDefId, Vec<(HirPlace<'tcx>, FakeReadCause, hir::HirId)>>, - - /// Tracks the rvalue scoping rules which defines finer scoping for rvalue expressions - /// by applying extended parameter rules. - /// Details may be find in `rustc_hir_analysis::check::rvalue_scopes`. - pub rvalue_scopes: RvalueScopes, - - /// Stores the type, expression, span and optional scope span of all types - /// that are live across the yield of this generator (if a generator). - pub generator_interior_types: ty::Binder<'tcx, Vec<GeneratorInteriorTypeCause<'tcx>>>, - - /// We sometimes treat byte string literals (which are of type `&[u8; N]`) - /// as `&[u8]`, depending on the pattern in which they are used. - /// This hashset records all instances where we behave - /// like this to allow `const_to_pat` to reliably handle this situation. - pub treat_byte_string_as_slice: ItemLocalSet, - - /// Contains the data for evaluating the effect of feature `capture_disjoint_fields` - /// on closure size. - pub closure_size_eval: FxHashMap<LocalDefId, ClosureSizeProfileData<'tcx>>, -} - -impl<'tcx> TypeckResults<'tcx> { - pub fn new(hir_owner: OwnerId) -> TypeckResults<'tcx> { - TypeckResults { - hir_owner, - type_dependent_defs: Default::default(), - field_indices: Default::default(), - user_provided_types: Default::default(), - user_provided_sigs: Default::default(), - node_types: Default::default(), - node_substs: Default::default(), - adjustments: Default::default(), - pat_binding_modes: Default::default(), - pat_adjustments: Default::default(), - closure_kind_origins: Default::default(), - liberated_fn_sigs: Default::default(), - fru_field_types: Default::default(), - coercion_casts: Default::default(), - used_trait_imports: Lrc::new(Default::default()), - tainted_by_errors: None, - concrete_opaque_types: Default::default(), - closure_min_captures: Default::default(), - closure_fake_reads: Default::default(), - rvalue_scopes: Default::default(), - generator_interior_types: ty::Binder::dummy(Default::default()), - treat_byte_string_as_slice: Default::default(), - closure_size_eval: Default::default(), - } - } - - /// Returns the final resolution of a `QPath` in an `Expr` or `Pat` node. - pub fn qpath_res(&self, qpath: &hir::QPath<'_>, id: hir::HirId) -> Res { - match *qpath { - hir::QPath::Resolved(_, ref path) => path.res, - hir::QPath::TypeRelative(..) | hir::QPath::LangItem(..) => self - .type_dependent_def(id) - .map_or(Res::Err, |(kind, def_id)| Res::Def(kind, def_id)), - } - } - - pub fn type_dependent_defs( - &self, - ) -> LocalTableInContext<'_, Result<(DefKind, DefId), ErrorGuaranteed>> { - LocalTableInContext { hir_owner: self.hir_owner, data: &self.type_dependent_defs } - } - - pub fn type_dependent_def(&self, id: HirId) -> Option<(DefKind, DefId)> { - validate_hir_id_for_typeck_results(self.hir_owner, id); - self.type_dependent_defs.get(&id.local_id).cloned().and_then(|r| r.ok()) - } - - pub fn type_dependent_def_id(&self, id: HirId) -> Option<DefId> { - self.type_dependent_def(id).map(|(_, def_id)| def_id) - } - - pub fn type_dependent_defs_mut( - &mut self, - ) -> LocalTableInContextMut<'_, Result<(DefKind, DefId), ErrorGuaranteed>> { - LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.type_dependent_defs } - } - - pub fn field_indices(&self) -> LocalTableInContext<'_, usize> { - LocalTableInContext { hir_owner: self.hir_owner, data: &self.field_indices } - } - - pub fn field_indices_mut(&mut self) -> LocalTableInContextMut<'_, usize> { - LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.field_indices } - } - - pub fn field_index(&self, id: hir::HirId) -> usize { - self.field_indices().get(id).cloned().expect("no index for a field") - } - - pub fn opt_field_index(&self, id: hir::HirId) -> Option<usize> { - self.field_indices().get(id).cloned() - } - - pub fn user_provided_types(&self) -> LocalTableInContext<'_, CanonicalUserType<'tcx>> { - LocalTableInContext { hir_owner: self.hir_owner, data: &self.user_provided_types } - } - - pub fn user_provided_types_mut( - &mut self, - ) -> LocalTableInContextMut<'_, CanonicalUserType<'tcx>> { - LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.user_provided_types } - } - - pub fn node_types(&self) -> LocalTableInContext<'_, Ty<'tcx>> { - LocalTableInContext { hir_owner: self.hir_owner, data: &self.node_types } - } - - pub fn node_types_mut(&mut self) -> LocalTableInContextMut<'_, Ty<'tcx>> { - LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.node_types } - } - - pub fn get_generator_diagnostic_data(&self) -> GeneratorDiagnosticData<'tcx> { - let generator_interior_type = self.generator_interior_types.map_bound_ref(|vec| { - vec.iter() - .map(|item| { - GeneratorInteriorTypeCause { - ty: item.ty, - span: item.span, - scope_span: item.scope_span, - yield_span: item.yield_span, - expr: None, //FIXME: Passing expression over crate boundaries is impossible at the moment - } - }) - .collect::<Vec<_>>() - }); - GeneratorDiagnosticData { - generator_interior_types: generator_interior_type, - hir_owner: self.hir_owner.to_def_id(), - nodes_types: self.node_types.clone(), - adjustments: self.adjustments.clone(), - } - } - - pub fn node_type(&self, id: hir::HirId) -> Ty<'tcx> { - self.node_type_opt(id).unwrap_or_else(|| { - bug!("node_type: no type for node `{}`", tls::with(|tcx| tcx.hir().node_to_string(id))) - }) - } - - pub fn node_type_opt(&self, id: hir::HirId) -> Option<Ty<'tcx>> { - validate_hir_id_for_typeck_results(self.hir_owner, id); - self.node_types.get(&id.local_id).cloned() - } - - pub fn node_substs_mut(&mut self) -> LocalTableInContextMut<'_, SubstsRef<'tcx>> { - LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.node_substs } - } - - pub fn node_substs(&self, id: hir::HirId) -> SubstsRef<'tcx> { - validate_hir_id_for_typeck_results(self.hir_owner, id); - self.node_substs.get(&id.local_id).cloned().unwrap_or_else(|| InternalSubsts::empty()) - } - - pub fn node_substs_opt(&self, id: hir::HirId) -> Option<SubstsRef<'tcx>> { - validate_hir_id_for_typeck_results(self.hir_owner, id); - self.node_substs.get(&id.local_id).cloned() - } - - /// Returns the type of a pattern as a monotype. Like [`expr_ty`], this function - /// doesn't provide type parameter substitutions. - /// - /// [`expr_ty`]: TypeckResults::expr_ty - pub fn pat_ty(&self, pat: &hir::Pat<'_>) -> Ty<'tcx> { - self.node_type(pat.hir_id) - } - - /// Returns the type of an expression as a monotype. - /// - /// NB (1): This is the PRE-ADJUSTMENT TYPE for the expression. That is, in - /// some cases, we insert `Adjustment` annotations such as auto-deref or - /// auto-ref. The type returned by this function does not consider such - /// adjustments. See `expr_ty_adjusted()` instead. - /// - /// NB (2): This type doesn't provide type parameter substitutions; e.g., if you - /// ask for the type of `id` in `id(3)`, it will return `fn(&isize) -> isize` - /// instead of `fn(ty) -> T with T = isize`. - pub fn expr_ty(&self, expr: &hir::Expr<'_>) -> Ty<'tcx> { - self.node_type(expr.hir_id) - } - - pub fn expr_ty_opt(&self, expr: &hir::Expr<'_>) -> Option<Ty<'tcx>> { - self.node_type_opt(expr.hir_id) - } - - pub fn adjustments(&self) -> LocalTableInContext<'_, Vec<ty::adjustment::Adjustment<'tcx>>> { - LocalTableInContext { hir_owner: self.hir_owner, data: &self.adjustments } - } - - pub fn adjustments_mut( - &mut self, - ) -> LocalTableInContextMut<'_, Vec<ty::adjustment::Adjustment<'tcx>>> { - LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.adjustments } - } - - pub fn expr_adjustments(&self, expr: &hir::Expr<'_>) -> &[ty::adjustment::Adjustment<'tcx>] { - validate_hir_id_for_typeck_results(self.hir_owner, expr.hir_id); - self.adjustments.get(&expr.hir_id.local_id).map_or(&[], |a| &a[..]) - } - - /// Returns the type of `expr`, considering any `Adjustment` - /// entry recorded for that expression. - pub fn expr_ty_adjusted(&self, expr: &hir::Expr<'_>) -> Ty<'tcx> { - self.expr_adjustments(expr).last().map_or_else(|| self.expr_ty(expr), |adj| adj.target) - } - - pub fn expr_ty_adjusted_opt(&self, expr: &hir::Expr<'_>) -> Option<Ty<'tcx>> { - self.expr_adjustments(expr).last().map(|adj| adj.target).or_else(|| self.expr_ty_opt(expr)) - } - - pub fn is_method_call(&self, expr: &hir::Expr<'_>) -> bool { - // Only paths and method calls/overloaded operators have - // entries in type_dependent_defs, ignore the former here. - if let hir::ExprKind::Path(_) = expr.kind { - return false; - } - - matches!(self.type_dependent_defs().get(expr.hir_id), Some(Ok((DefKind::AssocFn, _)))) - } - - pub fn extract_binding_mode(&self, s: &Session, id: HirId, sp: Span) -> Option<BindingMode> { - self.pat_binding_modes().get(id).copied().or_else(|| { - s.delay_span_bug(sp, "missing binding mode"); - None - }) - } - - pub fn pat_binding_modes(&self) -> LocalTableInContext<'_, BindingMode> { - LocalTableInContext { hir_owner: self.hir_owner, data: &self.pat_binding_modes } - } - - pub fn pat_binding_modes_mut(&mut self) -> LocalTableInContextMut<'_, BindingMode> { - LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.pat_binding_modes } - } - - pub fn pat_adjustments(&self) -> LocalTableInContext<'_, Vec<Ty<'tcx>>> { - LocalTableInContext { hir_owner: self.hir_owner, data: &self.pat_adjustments } - } - - pub fn pat_adjustments_mut(&mut self) -> LocalTableInContextMut<'_, Vec<Ty<'tcx>>> { - LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.pat_adjustments } - } - - /// For a given closure, returns the iterator of `ty::CapturedPlace`s that are captured - /// by the closure. - pub fn closure_min_captures_flattened( - &self, - closure_def_id: LocalDefId, - ) -> impl Iterator<Item = &ty::CapturedPlace<'tcx>> { - self.closure_min_captures - .get(&closure_def_id) - .map(|closure_min_captures| closure_min_captures.values().flat_map(|v| v.iter())) - .into_iter() - .flatten() - } - - pub fn closure_kind_origins(&self) -> LocalTableInContext<'_, (Span, HirPlace<'tcx>)> { - LocalTableInContext { hir_owner: self.hir_owner, data: &self.closure_kind_origins } - } - - pub fn closure_kind_origins_mut( - &mut self, - ) -> LocalTableInContextMut<'_, (Span, HirPlace<'tcx>)> { - LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.closure_kind_origins } - } - - pub fn liberated_fn_sigs(&self) -> LocalTableInContext<'_, ty::FnSig<'tcx>> { - LocalTableInContext { hir_owner: self.hir_owner, data: &self.liberated_fn_sigs } - } - - pub fn liberated_fn_sigs_mut(&mut self) -> LocalTableInContextMut<'_, ty::FnSig<'tcx>> { - LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.liberated_fn_sigs } - } - - pub fn fru_field_types(&self) -> LocalTableInContext<'_, Vec<Ty<'tcx>>> { - LocalTableInContext { hir_owner: self.hir_owner, data: &self.fru_field_types } - } - - pub fn fru_field_types_mut(&mut self) -> LocalTableInContextMut<'_, Vec<Ty<'tcx>>> { - LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.fru_field_types } - } - - pub fn is_coercion_cast(&self, hir_id: hir::HirId) -> bool { - validate_hir_id_for_typeck_results(self.hir_owner, hir_id); - self.coercion_casts.contains(&hir_id.local_id) - } - - pub fn set_coercion_cast(&mut self, id: ItemLocalId) { - self.coercion_casts.insert(id); - } - - pub fn coercion_casts(&self) -> &ItemLocalSet { - &self.coercion_casts - } -} - -rustc_index::newtype_index! { - pub struct UserTypeAnnotationIndex { - derive [HashStable] - DEBUG_FORMAT = "UserType({})", - const START_INDEX = 0, - } -} - -/// Mapping of type annotation indices to canonical user type annotations. -pub type CanonicalUserTypeAnnotations<'tcx> = - IndexVec<UserTypeAnnotationIndex, CanonicalUserTypeAnnotation<'tcx>>; - -#[derive(Clone, Debug, TyEncodable, TyDecodable, HashStable, TypeFoldable, TypeVisitable, Lift)] -pub struct CanonicalUserTypeAnnotation<'tcx> { - pub user_ty: Box<CanonicalUserType<'tcx>>, - pub span: Span, - pub inferred_ty: Ty<'tcx>, -} - -/// Canonicalized user type annotation. -pub type CanonicalUserType<'tcx> = Canonical<'tcx, UserType<'tcx>>; - -impl<'tcx> CanonicalUserType<'tcx> { - /// Returns `true` if this represents a substitution of the form `[?0, ?1, ?2]`, - /// i.e., each thing is mapped to a canonical variable with the same index. - pub fn is_identity(&self) -> bool { - match self.value { - UserType::Ty(_) => false, - UserType::TypeOf(_, user_substs) => { - if user_substs.user_self_ty.is_some() { - return false; - } - - iter::zip(user_substs.substs, BoundVar::new(0)..).all(|(kind, cvar)| { - match kind.unpack() { - GenericArgKind::Type(ty) => match ty.kind() { - ty::Bound(debruijn, b) => { - // We only allow a `ty::INNERMOST` index in substitutions. - assert_eq!(*debruijn, ty::INNERMOST); - cvar == b.var - } - _ => false, - }, - - GenericArgKind::Lifetime(r) => match *r { - ty::ReLateBound(debruijn, br) => { - // We only allow a `ty::INNERMOST` index in substitutions. - assert_eq!(debruijn, ty::INNERMOST); - cvar == br.var - } - _ => false, - }, - - GenericArgKind::Const(ct) => match ct.kind() { - ty::ConstKind::Bound(debruijn, b) => { - // We only allow a `ty::INNERMOST` index in substitutions. - assert_eq!(debruijn, ty::INNERMOST); - cvar == b - } - _ => false, - }, - } - }) - } - } - } -} - -/// A user-given type annotation attached to a constant. These arise -/// from constants that are named via paths, like `Foo::<A>::new` and -/// so forth. -#[derive(Copy, Clone, Debug, PartialEq, TyEncodable, TyDecodable)] -#[derive(HashStable, TypeFoldable, TypeVisitable, Lift)] -pub enum UserType<'tcx> { - Ty(Ty<'tcx>), - - /// The canonical type is the result of `type_of(def_id)` with the - /// given substitutions applied. - TypeOf(DefId, UserSubsts<'tcx>), -} - impl<'tcx> CommonTypes<'tcx> { fn new( interners: &CtxtInterners<'tcx>, @@ -1001,7 +331,7 @@ impl<'tcx> CommonConsts<'tcx> { }; CommonConsts { - unit: mk_const(ty::ConstS { + unit: mk_const(ty::ConstData { kind: ty::ConstKind::Value(ty::ValTree::zst()), ty: types.unit, }), @@ -2145,8 +1475,7 @@ impl<'tcx> TyCtxt<'tcx> { Bound, Param, Infer, - Projection, - Opaque, + Alias, Foreign )?; @@ -2272,7 +1601,7 @@ macro_rules! direct_interners { direct_interners! { region: mk_region(RegionKind<'tcx>): Region -> Region<'tcx>, - const_: mk_const_internal(ConstS<'tcx>): Const -> Const<'tcx>, + const_: mk_const_internal(ConstData<'tcx>): Const -> Const<'tcx>, const_allocation: intern_const_alloc(Allocation): ConstAllocation -> ConstAllocation<'tcx>, layout: intern_layout(LayoutS<VariantIdx>): Layout -> Layout<'tcx>, adt_def: intern_adt_def(AdtDefData): AdtDef -> AdtDef<'tcx>, @@ -2323,7 +1652,7 @@ impl<'tcx> TyCtxt<'tcx> { /// Given a `ty`, return whether it's an `impl Future<...>`. pub fn ty_is_opaque_future(self, ty: Ty<'_>) -> bool { - let ty::Opaque(def_id, _) = ty.kind() else { return false }; + let ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }) = ty.kind() else { return false }; let future_trait = self.require_lang_item(LangItem::Future, None); self.explicit_item_bounds(def_id).iter().any(|(predicate, _)| { @@ -2567,15 +1896,35 @@ impl<'tcx> TyCtxt<'tcx> { } #[inline] - pub fn mk_fn_def(self, def_id: DefId, substs: SubstsRef<'tcx>) -> Ty<'tcx> { - debug_assert_eq!( - self.generics_of(def_id).count(), - substs.len(), - "wrong number of generic parameters for {def_id:?}: {substs:?}", - ); + pub fn mk_fn_def( + self, + def_id: DefId, + substs: impl IntoIterator<Item = impl Into<GenericArg<'tcx>>>, + ) -> Ty<'tcx> { + let substs = self.check_substs(def_id, substs); self.mk_ty(FnDef(def_id, substs)) } + #[inline(always)] + fn check_substs( + self, + _def_id: DefId, + substs: impl IntoIterator<Item = impl Into<GenericArg<'tcx>>>, + ) -> SubstsRef<'tcx> { + let substs = substs.into_iter().map(Into::into); + #[cfg(debug_assertions)] + { + let n = self.generics_of(_def_id).count(); + assert_eq!( + (n, Some(n)), + substs.size_hint(), + "wrong number of generic parameters for {_def_id:?}: {:?}", + substs.collect::<Vec<_>>(), + ); + } + self.mk_substs(substs) + } + #[inline] pub fn mk_fn_ptr(self, fty: PolyFnSig<'tcx>) -> Ty<'tcx> { self.mk_ty(FnPtr(fty)) @@ -2592,13 +1941,12 @@ impl<'tcx> TyCtxt<'tcx> { } #[inline] - pub fn mk_projection(self, item_def_id: DefId, substs: SubstsRef<'tcx>) -> Ty<'tcx> { - debug_assert_eq!( - self.generics_of(item_def_id).count(), - substs.len(), - "wrong number of generic parameters for {item_def_id:?}: {substs:?}", - ); - self.mk_ty(Projection(ProjectionTy { item_def_id, substs })) + pub fn mk_projection( + self, + item_def_id: DefId, + substs: impl IntoIterator<Item = impl Into<GenericArg<'tcx>>>, + ) -> Ty<'tcx> { + self.mk_ty(Alias(ty::Projection, self.mk_alias_ty(item_def_id, substs))) } #[inline] @@ -2628,7 +1976,7 @@ impl<'tcx> TyCtxt<'tcx> { #[inline] pub fn mk_const(self, kind: impl Into<ty::ConstKind<'tcx>>, ty: Ty<'tcx>) -> Const<'tcx> { - self.mk_const_internal(ty::ConstS { kind: kind.into(), ty }) + self.mk_const_internal(ty::ConstData { kind: kind.into(), ty }) } #[inline] @@ -2668,7 +2016,7 @@ impl<'tcx> TyCtxt<'tcx> { #[inline] pub fn mk_opaque(self, def_id: DefId, substs: SubstsRef<'tcx>) -> Ty<'tcx> { - self.mk_ty(Opaque(def_id, substs)) + self.mk_ty(Alias(ty::Opaque, self.mk_alias_ty(def_id, substs))) } pub fn mk_place_field(self, place: Place<'tcx>, f: Field, ty: Ty<'tcx>) -> Place<'tcx> { @@ -2857,16 +2205,17 @@ impl<'tcx> TyCtxt<'tcx> { trait_def_id: DefId, substs: impl IntoIterator<Item = impl Into<GenericArg<'tcx>>>, ) -> ty::TraitRef<'tcx> { - let substs = substs.into_iter().map(Into::into); - let n = self.generics_of(trait_def_id).count(); - debug_assert_eq!( - (n, Some(n)), - substs.size_hint(), - "wrong number of generic parameters for {trait_def_id:?}: {:?} \nDid you accidentally include the self-type in the params list?", - substs.collect::<Vec<_>>(), - ); - let substs = self.mk_substs(substs); - ty::TraitRef::new(trait_def_id, substs) + let substs = self.check_substs(trait_def_id, substs); + ty::TraitRef { def_id: trait_def_id, substs, _use_mk_trait_ref_instead: () } + } + + pub fn mk_alias_ty( + self, + def_id: DefId, + substs: impl IntoIterator<Item = impl Into<GenericArg<'tcx>>>, + ) -> ty::AliasTy<'tcx> { + let substs = self.check_substs(def_id, substs); + ty::AliasTy { def_id, substs, _use_mk_alias_ty_instead: () } } pub fn mk_bound_variable_kinds< diff --git a/compiler/rustc_middle/src/ty/diagnostics.rs b/compiler/rustc_middle/src/ty/diagnostics.rs index 511d51cd670..8c22df7395f 100644 --- a/compiler/rustc_middle/src/ty/diagnostics.rs +++ b/compiler/rustc_middle/src/ty/diagnostics.rs @@ -3,7 +3,7 @@ use std::ops::ControlFlow; use crate::ty::{ - visit::TypeVisitable, Const, ConstKind, DefIdTree, ExistentialPredicate, InferConst, InferTy, + visit::TypeVisitable, AliasTy, Const, ConstKind, DefIdTree, InferConst, InferTy, Opaque, PolyTraitPredicate, Ty, TyCtxt, TypeSuperVisitable, TypeVisitor, }; @@ -457,11 +457,11 @@ impl<'tcx> TypeVisitor<'tcx> for IsSuggestableVisitor<'tcx> { return ControlFlow::Break(()); } - Opaque(did, _) => { - let parent = self.tcx.parent(*did); + Alias(Opaque, AliasTy { def_id, .. }) => { + let parent = self.tcx.parent(*def_id); if let hir::def::DefKind::TyAlias | hir::def::DefKind::AssocTy = self.tcx.def_kind(parent) - && let Opaque(parent_did, _) = self.tcx.type_of(parent).kind() - && parent_did == did + && let Alias(Opaque, AliasTy { def_id: parent_opaque_def_id, .. }) = self.tcx.type_of(parent).kind() + && parent_opaque_def_id == def_id { // Okay } else { @@ -469,17 +469,6 @@ impl<'tcx> TypeVisitor<'tcx> for IsSuggestableVisitor<'tcx> { } } - Dynamic(dty, _, _) => { - for pred in *dty { - match pred.skip_binder() { - ExistentialPredicate::Trait(_) | ExistentialPredicate::Projection(_) => { - // Okay - } - _ => return ControlFlow::Break(()), - } - } - } - Param(param) => { // FIXME: It would be nice to make this not use string manipulation, // but it's pretty hard to do this, since `ty::ParamTy` is missing diff --git a/compiler/rustc_middle/src/ty/error.rs b/compiler/rustc_middle/src/ty/error.rs index 4e113d72469..14d07608a78 100644 --- a/compiler/rustc_middle/src/ty/error.rs +++ b/compiler/rustc_middle/src/ty/error.rs @@ -337,9 +337,9 @@ impl<'tcx> Ty<'tcx> { ty::Infer(ty::FreshTy(_)) => "fresh type".into(), ty::Infer(ty::FreshIntTy(_)) => "fresh integral type".into(), ty::Infer(ty::FreshFloatTy(_)) => "fresh floating-point type".into(), - ty::Projection(_) => "associated type".into(), + ty::Alias(ty::Projection, _) => "associated type".into(), ty::Param(p) => format!("type parameter `{}`", p).into(), - ty::Opaque(..) => "opaque type".into(), + ty::Alias(ty::Opaque, ..) => "opaque type".into(), ty::Error(_) => "type error".into(), } } @@ -375,9 +375,9 @@ impl<'tcx> Ty<'tcx> { ty::Tuple(..) => "tuple".into(), ty::Placeholder(..) => "higher-ranked type".into(), ty::Bound(..) => "bound type variable".into(), - ty::Projection(_) => "associated type".into(), + ty::Alias(ty::Projection, _) => "associated type".into(), ty::Param(_) => "type parameter".into(), - ty::Opaque(..) => "opaque type".into(), + ty::Alias(ty::Opaque, ..) => "opaque type".into(), } } } @@ -400,7 +400,7 @@ impl<'tcx> TyCtxt<'tcx> { diag.note("no two closures, even if identical, have the same type"); diag.help("consider boxing your closure and/or using it as a trait object"); } - (ty::Opaque(..), ty::Opaque(..)) => { + (ty::Alias(ty::Opaque, ..), ty::Alias(ty::Opaque, ..)) => { // Issue #63167 diag.note("distinct uses of `impl Trait` result in different opaque types"); } @@ -439,11 +439,11 @@ impl<'tcx> TyCtxt<'tcx> { #traits-as-parameters", ); } - (ty::Projection(_), ty::Projection(_)) => { + (ty::Alias(ty::Projection, _), ty::Alias(ty::Projection, _)) => { diag.note("an associated type was expected, but a different one was found"); } - (ty::Param(p), ty::Projection(proj)) | (ty::Projection(proj), ty::Param(p)) - if self.def_kind(proj.item_def_id) != DefKind::ImplTraitPlaceholder => + (ty::Param(p), ty::Alias(ty::Projection, proj)) | (ty::Alias(ty::Projection, proj), ty::Param(p)) + if self.def_kind(proj.def_id) != DefKind::ImplTraitPlaceholder => { let generics = self.generics_of(body_owner_def_id); let p_span = self.def_span(generics.type_param(p, self).def_id); @@ -466,7 +466,7 @@ impl<'tcx> TyCtxt<'tcx> { let (trait_ref, assoc_substs) = proj.trait_ref_and_own_substs(self); let path = self.def_path_str_with_substs(trait_ref.def_id, trait_ref.substs); - let item_name = self.item_name(proj.item_def_id); + let item_name = self.item_name(proj.def_id); let item_args = self.format_generic_args(assoc_substs); let path = if path.ends_with('>') { @@ -493,8 +493,8 @@ impl<'tcx> TyCtxt<'tcx> { diag.note("you might be missing a type parameter or trait bound"); } } - (ty::Param(p), ty::Dynamic(..) | ty::Opaque(..)) - | (ty::Dynamic(..) | ty::Opaque(..), ty::Param(p)) => { + (ty::Param(p), ty::Dynamic(..) | ty::Alias(ty::Opaque, ..)) + | (ty::Dynamic(..) | ty::Alias(ty::Opaque, ..), ty::Param(p)) => { let generics = self.generics_of(body_owner_def_id); let p_span = self.def_span(generics.type_param(p, self).def_id); if !sp.contains(p_span) { @@ -553,7 +553,7 @@ impl<T> Trait<T> for X { diag.span_label(p_span, "this type parameter"); } } - (ty::Projection(proj_ty), _) if self.def_kind(proj_ty.item_def_id) != DefKind::ImplTraitPlaceholder => { + (ty::Alias(ty::Projection, proj_ty), _) if self.def_kind(proj_ty.def_id) != DefKind::ImplTraitPlaceholder => { self.expected_projection( diag, proj_ty, @@ -562,7 +562,7 @@ impl<T> Trait<T> for X { cause.code(), ); } - (_, ty::Projection(proj_ty)) if self.def_kind(proj_ty.item_def_id) != DefKind::ImplTraitPlaceholder => { + (_, ty::Alias(ty::Projection, proj_ty)) if self.def_kind(proj_ty.def_id) != DefKind::ImplTraitPlaceholder => { let msg = format!( "consider constraining the associated type `{}` to `{}`", values.found, values.expected, @@ -624,10 +624,10 @@ impl<T> Trait<T> for X { diag: &mut Diagnostic, msg: &str, body_owner_def_id: DefId, - proj_ty: &ty::ProjectionTy<'tcx>, + proj_ty: &ty::AliasTy<'tcx>, ty: Ty<'tcx>, ) -> bool { - let assoc = self.associated_item(proj_ty.item_def_id); + let assoc = self.associated_item(proj_ty.def_id); let (trait_ref, assoc_substs) = proj_ty.trait_ref_and_own_substs(self); if let Some(item) = self.hir().get_if_local(body_owner_def_id) { if let Some(hir_generics) = item.generics() { @@ -680,7 +680,7 @@ impl<T> Trait<T> for X { fn expected_projection( self, diag: &mut Diagnostic, - proj_ty: &ty::ProjectionTy<'tcx>, + proj_ty: &ty::AliasTy<'tcx>, values: ExpectedFound<Ty<'tcx>>, body_owner_def_id: DefId, cause_code: &ObligationCauseCode<'_>, @@ -703,7 +703,7 @@ impl<T> Trait<T> for X { ); let impl_comparison = matches!(cause_code, ObligationCauseCode::CompareImplItemObligation { .. }); - let assoc = self.associated_item(proj_ty.item_def_id); + let assoc = self.associated_item(proj_ty.def_id); if !callable_scope || impl_comparison { // We do not want to suggest calling functions when the reason of the // type error is a comparison of an `impl` with its `trait` or when the @@ -716,7 +716,7 @@ impl<T> Trait<T> for X { diag, assoc.container_id(self), current_method_ident, - proj_ty.item_def_id, + proj_ty.def_id, values.expected, ); // Possibly suggest constraining the associated type to conform to the @@ -775,11 +775,11 @@ fn foo(&self) -> Self::T { String::new() } self, diag: &mut Diagnostic, msg: &str, - proj_ty: &ty::ProjectionTy<'tcx>, + proj_ty: &ty::AliasTy<'tcx>, ty: Ty<'tcx>, ) -> bool { - let assoc = self.associated_item(proj_ty.item_def_id); - if let ty::Opaque(def_id, _) = *proj_ty.self_ty().kind() { + let assoc = self.associated_item(proj_ty.def_id); + if let ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }) = *proj_ty.self_ty().kind() { let opaque_local_def_id = def_id.as_local(); let opaque_hir_ty = if let Some(opaque_local_def_id) = opaque_local_def_id { match &self.hir().expect_item(opaque_local_def_id).kind { @@ -828,7 +828,7 @@ fn foo(&self) -> Self::T { String::new() } .filter_map(|(_, item)| { let method = self.fn_sig(item.def_id); match *method.output().skip_binder().kind() { - ty::Projection(ty::ProjectionTy { item_def_id, .. }) + ty::Alias(ty::Projection, ty::AliasTy { def_id: item_def_id, .. }) if item_def_id == proj_ty_item_def_id => { Some(( @@ -1010,7 +1010,7 @@ fn foo(&self) -> Self::T { String::new() } } let mut short; loop { - // Look for the longest properly trimmed path that still fits in lenght_limit. + // Look for the longest properly trimmed path that still fits in length_limit. short = with_forced_trimmed_paths!( FmtPrinter::new_with_limit( self, diff --git a/compiler/rustc_middle/src/ty/fast_reject.rs b/compiler/rustc_middle/src/ty/fast_reject.rs index c9c09c93a3e..f785fb5c4b9 100644 --- a/compiler/rustc_middle/src/ty/fast_reject.rs +++ b/compiler/rustc_middle/src/ty/fast_reject.rs @@ -6,28 +6,18 @@ use std::fmt::Debug; use std::hash::Hash; use std::iter; -use self::SimplifiedTypeGen::*; +use self::SimplifiedType::*; -pub type SimplifiedType = SimplifiedTypeGen<DefId>; - -/// See `simplify_type` -/// -/// Note that we keep this type generic over the type of identifier it uses -/// because we sometimes need to use SimplifiedTypeGen values as stable sorting -/// keys (in which case we use a DefPathHash as id-type) but in the general case -/// the non-stable but fast to construct DefId-version is the better choice. +/// See `simplify_type`. #[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, TyEncodable, TyDecodable, HashStable)] -pub enum SimplifiedTypeGen<D> -where - D: Copy + Debug + Eq, -{ +pub enum SimplifiedType { BoolSimplifiedType, CharSimplifiedType, IntSimplifiedType(ty::IntTy), UintSimplifiedType(ty::UintTy), FloatSimplifiedType(ty::FloatTy), - AdtSimplifiedType(D), - ForeignSimplifiedType(D), + AdtSimplifiedType(DefId), + ForeignSimplifiedType(DefId), StrSimplifiedType, ArraySimplifiedType, SliceSimplifiedType, @@ -38,9 +28,9 @@ where /// A trait object, all of whose components are markers /// (e.g., `dyn Send + Sync`). MarkerTraitObjectSimplifiedType, - TraitSimplifiedType(D), - ClosureSimplifiedType(D), - GeneratorSimplifiedType(D), + TraitSimplifiedType(DefId), + ClosureSimplifiedType(DefId), + GeneratorSimplifiedType(DefId), GeneratorWitnessSimplifiedType(usize), FunctionSimplifiedType(usize), PlaceholderSimplifiedType, @@ -126,7 +116,7 @@ pub fn simplify_type<'tcx>( TreatParams::AsPlaceholder => Some(PlaceholderSimplifiedType), TreatParams::AsInfer => None, }, - ty::Opaque(..) | ty::Projection(_) => match treat_params { + ty::Alias(..) => match treat_params { // When treating `ty::Param` as a placeholder, projections also // don't unify with anything else as long as they are fully normalized. // @@ -142,8 +132,8 @@ pub fn simplify_type<'tcx>( } } -impl<D: Copy + Debug + Eq> SimplifiedTypeGen<D> { - pub fn def(self) -> Option<D> { +impl SimplifiedType { + pub fn def(self) -> Option<DefId> { match self { AdtSimplifiedType(d) | ForeignSimplifiedType(d) @@ -153,36 +143,6 @@ impl<D: Copy + Debug + Eq> SimplifiedTypeGen<D> { _ => None, } } - - pub fn map_def<U, F>(self, map: F) -> SimplifiedTypeGen<U> - where - F: Fn(D) -> U, - U: Copy + Debug + Eq, - { - match self { - BoolSimplifiedType => BoolSimplifiedType, - CharSimplifiedType => CharSimplifiedType, - IntSimplifiedType(t) => IntSimplifiedType(t), - UintSimplifiedType(t) => UintSimplifiedType(t), - FloatSimplifiedType(t) => FloatSimplifiedType(t), - AdtSimplifiedType(d) => AdtSimplifiedType(map(d)), - ForeignSimplifiedType(d) => ForeignSimplifiedType(map(d)), - StrSimplifiedType => StrSimplifiedType, - ArraySimplifiedType => ArraySimplifiedType, - SliceSimplifiedType => SliceSimplifiedType, - RefSimplifiedType(m) => RefSimplifiedType(m), - PtrSimplifiedType(m) => PtrSimplifiedType(m), - NeverSimplifiedType => NeverSimplifiedType, - MarkerTraitObjectSimplifiedType => MarkerTraitObjectSimplifiedType, - TupleSimplifiedType(n) => TupleSimplifiedType(n), - TraitSimplifiedType(d) => TraitSimplifiedType(map(d)), - ClosureSimplifiedType(d) => ClosureSimplifiedType(map(d)), - GeneratorSimplifiedType(d) => GeneratorSimplifiedType(map(d)), - GeneratorWitnessSimplifiedType(n) => GeneratorWitnessSimplifiedType(n), - FunctionSimplifiedType(n) => FunctionSimplifiedType(n), - PlaceholderSimplifiedType => PlaceholderSimplifiedType, - } - } } /// Given generic arguments from an obligation and an impl, @@ -225,7 +185,7 @@ impl DeepRejectCtxt { match impl_ty.kind() { // Start by checking whether the type in the impl may unify with // pretty much everything. Just return `true` in that case. - ty::Param(_) | ty::Projection(_) | ty::Error(_) | ty::Opaque(..) => return true, + ty::Param(_) | ty::Error(_) | ty::Alias(..) => return true, // These types only unify with inference variables or their own // variant. ty::Bool @@ -323,8 +283,6 @@ impl DeepRejectCtxt { _ => false, }, - ty::Opaque(..) => true, - // Impls cannot contain these types as these cannot be named directly. ty::FnDef(..) | ty::Closure(..) | ty::Generator(..) => false, @@ -344,7 +302,7 @@ impl DeepRejectCtxt { // projections can unify with other stuff. // // Looking forward to lazy normalization this is the safer strategy anyways. - ty::Projection(_) => true, + ty::Alias(..) => true, ty::Error(_) => true, diff --git a/compiler/rustc_middle/src/ty/flags.rs b/compiler/rustc_middle/src/ty/flags.rs index 046a2660a1f..d283ccc3ad8 100644 --- a/compiler/rustc_middle/src/ty/flags.rs +++ b/compiler/rustc_middle/src/ty/flags.rs @@ -155,12 +155,12 @@ impl FlagComputation { self.add_substs(substs); } - &ty::Projection(data) => { + &ty::Alias(ty::Projection, data) => { self.add_flags(TypeFlags::HAS_TY_PROJECTION); self.add_projection_ty(data); } - &ty::Opaque(_, substs) => { + &ty::Alias(ty::Opaque, ty::AliasTy { substs, .. }) => { self.add_flags(TypeFlags::HAS_TY_OPAQUE); self.add_substs(substs); } @@ -345,7 +345,7 @@ impl FlagComputation { } } - fn add_projection_ty(&mut self, projection_ty: ty::ProjectionTy<'_>) { + fn add_projection_ty(&mut self, projection_ty: ty::AliasTy<'_>) { self.add_substs(projection_ty.substs); } diff --git a/compiler/rustc_middle/src/ty/fold.rs b/compiler/rustc_middle/src/ty/fold.rs index d431d008ddf..09fee0c3f7c 100644 --- a/compiler/rustc_middle/src/ty/fold.rs +++ b/compiler/rustc_middle/src/ty/fold.rs @@ -583,36 +583,6 @@ impl<'tcx> TyCtxt<'tcx> { self.replace_late_bound_regions(value, |_| self.lifetimes.re_erased).0 } - /// Rewrite any late-bound regions so that they are anonymous. Region numbers are - /// assigned starting at 0 and increasing monotonically in the order traversed - /// by the fold operation. - /// - /// The chief purpose of this function is to canonicalize regions so that two - /// `FnSig`s or `TraitRef`s which are equivalent up to region naming will become - /// structurally identical. For example, `for<'a, 'b> fn(&'a isize, &'b isize)` and - /// `for<'a, 'b> fn(&'b isize, &'a isize)` will become identical after anonymization. - pub fn anonymize_late_bound_regions<T>(self, sig: Binder<'tcx, T>) -> Binder<'tcx, T> - where - T: TypeFoldable<'tcx>, - { - let mut counter = 0; - let inner = self - .replace_late_bound_regions(sig, |_| { - let br = ty::BoundRegion { - var: ty::BoundVar::from_u32(counter), - kind: ty::BrAnon(counter, None), - }; - let r = self.mk_region(ty::ReLateBound(ty::INNERMOST, br)); - counter += 1; - r - }) - .0; - let bound_vars = self.mk_bound_variable_kinds( - (0..counter).map(|i| ty::BoundVariableKind::Region(ty::BrAnon(i, None))), - ); - Binder::bind_with_vars(inner, bound_vars) - } - /// Anonymize all bound variables in `value`, this is mostly used to improve caching. pub fn anonymize_bound_vars<T>(self, value: Binder<'tcx, T>) -> Binder<'tcx, T> where diff --git a/compiler/rustc_middle/src/ty/inhabitedness/mod.rs b/compiler/rustc_middle/src/ty/inhabitedness/mod.rs index ace81bc4f83..5d5089cec82 100644 --- a/compiler/rustc_middle/src/ty/inhabitedness/mod.rs +++ b/compiler/rustc_middle/src/ty/inhabitedness/mod.rs @@ -112,7 +112,7 @@ impl<'tcx> Ty<'tcx> { InhabitedPredicate::True } Never => InhabitedPredicate::False, - Param(_) | Projection(_) => InhabitedPredicate::GenericType(self), + Param(_) | Alias(ty::Projection, _) => InhabitedPredicate::GenericType(self), Tuple(tys) if tys.is_empty() => InhabitedPredicate::True, // use a query for more complex cases Adt(..) | Array(..) | Tuple(_) => tcx.inhabited_predicate_type(self), diff --git a/compiler/rustc_middle/src/ty/layout.rs b/compiler/rustc_middle/src/ty/layout.rs index 488fd567846..7f66b993646 100644 --- a/compiler/rustc_middle/src/ty/layout.rs +++ b/compiler/rustc_middle/src/ty/layout.rs @@ -271,7 +271,7 @@ impl<'tcx> SizeSkeleton<'tcx> { let non_zero = !ty.is_unsafe_ptr(); let tail = tcx.struct_tail_erasing_lifetimes(pointee, param_env); match tail.kind() { - ty::Param(_) | ty::Projection(_) => { + ty::Param(_) | ty::Alias(ty::Projection, _) => { debug_assert!(tail.has_non_region_param()); Ok(SizeSkeleton::Pointer { non_zero, tail: tcx.erase_regions(tail) }) } @@ -349,7 +349,7 @@ impl<'tcx> SizeSkeleton<'tcx> { } } - ty::Projection(_) | ty::Opaque(..) => { + ty::Alias(..) => { let normalized = tcx.normalize_erasing_regions(param_env, ty); if ty == normalized { Err(err) @@ -757,10 +757,9 @@ where } } - ty::Projection(_) + ty::Alias(..) | ty::Bound(..) | ty::Placeholder(..) - | ty::Opaque(..) | ty::Param(_) | ty::Infer(_) | ty::Error(_) => bug!("TyAndLayout::field: unexpected type `{}`", this.ty), diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index 659d99f025d..a8e1253e670 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -64,6 +64,7 @@ use std::ops::ControlFlow; use std::{fmt, str}; pub use crate::ty::diagnostics::*; +pub use rustc_type_ir::AliasKind::*; pub use rustc_type_ir::DynKind::*; pub use rustc_type_ir::InferTy::*; pub use rustc_type_ir::RegionKind::*; @@ -79,13 +80,11 @@ pub use self::closure::{ CAPTURE_STRUCT_LOCAL, }; pub use self::consts::{ - Const, ConstInt, ConstKind, ConstS, Expr, InferConst, ScalarInt, UnevaluatedConst, ValTree, + Const, ConstData, ConstInt, ConstKind, Expr, InferConst, ScalarInt, UnevaluatedConst, ValTree, }; pub use self::context::{ - tls, CanonicalUserType, CanonicalUserTypeAnnotation, CanonicalUserTypeAnnotations, - CtxtInterners, DeducedParamAttrs, FreeRegionInfo, GeneratorDiagnosticData, - GeneratorInteriorTypeCause, GlobalCtxt, Lift, OnDiskCache, TyCtxt, TyCtxtFeed, TypeckResults, - UserType, UserTypeAnnotationIndex, + tls, CtxtInterners, DeducedParamAttrs, FreeRegionInfo, GlobalCtxt, Lift, OnDiskCache, TyCtxt, + TyCtxtFeed, }; pub use self::instance::{Instance, InstanceDef, ShortInstance}; pub use self::list::List; @@ -93,16 +92,20 @@ pub use self::parameterized::ParameterizedOverTcx; pub use self::rvalue_scopes::RvalueScopes; pub use self::sty::BoundRegionKind::*; pub use self::sty::{ - Article, Binder, BoundRegion, BoundRegionKind, BoundTy, BoundTyKind, BoundVar, + AliasTy, Article, Binder, BoundRegion, BoundRegionKind, BoundTy, BoundTyKind, BoundVar, BoundVariableKind, CanonicalPolyFnSig, ClosureSubsts, ClosureSubstsParts, ConstVid, EarlyBoundRegion, ExistentialPredicate, ExistentialProjection, ExistentialTraitRef, FnSig, FreeRegion, GenSig, GeneratorSubsts, GeneratorSubstsParts, InlineConstSubsts, InlineConstSubstsParts, ParamConst, ParamTy, PolyExistentialPredicate, PolyExistentialProjection, PolyExistentialTraitRef, PolyFnSig, PolyGenSig, PolyTraitRef, - ProjectionTy, Region, RegionKind, RegionVid, TraitRef, TyKind, TypeAndMut, UpvarSubsts, - VarianceDiagInfo, + Region, RegionKind, RegionVid, TraitRef, TyKind, TypeAndMut, UpvarSubsts, VarianceDiagInfo, }; pub use self::trait_def::TraitDef; +pub use self::typeck_results::{ + CanonicalUserType, CanonicalUserTypeAnnotation, CanonicalUserTypeAnnotations, + GeneratorDiagnosticData, GeneratorInteriorTypeCause, TypeckResults, UserType, + UserTypeAnnotationIndex, +}; pub mod _match; pub mod abstract_const; @@ -143,6 +146,7 @@ mod parameterized; mod rvalue_scopes; mod structural_impls; mod sty; +mod typeck_results; // Data types @@ -235,7 +239,7 @@ pub struct ImplHeader<'tcx> { pub predicates: Vec<Predicate<'tcx>>, } -#[derive(Copy, Clone, Debug, TypeFoldable, TypeVisitable)] +#[derive(Copy, Clone, PartialEq, Eq, Debug, TypeFoldable, TypeVisitable)] pub enum ImplSubject<'tcx> { Trait(TraitRef<'tcx>), Inherent(Ty<'tcx>), @@ -781,8 +785,8 @@ impl<'tcx> TraitPredicate<'tcx> { } } - pub fn with_self_type(self, tcx: TyCtxt<'tcx>, self_ty: Ty<'tcx>) -> Self { - Self { trait_ref: self.trait_ref.with_self_type(tcx, self_ty), ..self } + pub fn with_self_ty(self, tcx: TyCtxt<'tcx>, self_ty: Ty<'tcx>) -> Self { + Self { trait_ref: self.trait_ref.with_self_ty(tcx, self_ty), ..self } } pub fn def_id(self) -> DefId { @@ -941,7 +945,7 @@ impl<'tcx> Term<'tcx> { &*((ptr & !TAG_MASK) as *const WithCachedTypeInfo<ty::TyKind<'tcx>>), ))), CONST_TAG => TermKind::Const(ty::Const(Interned::new_unchecked( - &*((ptr & !TAG_MASK) as *const ty::ConstS<'tcx>), + &*((ptr & !TAG_MASK) as *const ty::ConstData<'tcx>), ))), _ => core::intrinsics::unreachable(), } @@ -987,7 +991,7 @@ impl<'tcx> TermKind<'tcx> { TermKind::Const(ct) => { // Ensure we can use the tag bits. assert_eq!(mem::align_of_val(&*ct.0.0) & TAG_MASK, 0); - (CONST_TAG, ct.0.0 as *const ty::ConstS<'tcx> as usize) + (CONST_TAG, ct.0.0 as *const ty::ConstData<'tcx> as usize) } }; @@ -1010,7 +1014,7 @@ impl<'tcx> TermKind<'tcx> { #[derive(Copy, Clone, PartialEq, Eq, Hash, TyEncodable, TyDecodable)] #[derive(HashStable, TypeFoldable, TypeVisitable, Lift)] pub struct ProjectionPredicate<'tcx> { - pub projection_ty: ProjectionTy<'tcx>, + pub projection_ty: AliasTy<'tcx>, pub term: Term<'tcx>, } @@ -1046,7 +1050,19 @@ impl<'tcx> PolyProjectionPredicate<'tcx> { /// associated type, which is in `tcx.associated_item(projection_def_id()).container`. pub fn projection_def_id(&self) -> DefId { // Ok to skip binder since trait `DefId` does not care about regions. - self.skip_binder().projection_ty.item_def_id + self.skip_binder().projection_ty.def_id + } +} + +impl<'tcx> ProjectionPredicate<'tcx> { + pub fn with_self_ty(self, tcx: TyCtxt<'tcx>, self_ty: Ty<'tcx>) -> Self { + Self { + projection_ty: tcx.mk_alias_ty( + self.projection_ty.def_id, + [self_ty.into()].into_iter().chain(self.projection_ty.substs.iter().skip(1)), + ), + ..self + } } } diff --git a/compiler/rustc_middle/src/ty/parameterized.rs b/compiler/rustc_middle/src/ty/parameterized.rs index c7d6c6abd1c..a21e3961cb6 100644 --- a/compiler/rustc_middle/src/ty/parameterized.rs +++ b/compiler/rustc_middle/src/ty/parameterized.rs @@ -1,15 +1,10 @@ use rustc_data_structures::fx::FxHashMap; -use rustc_hir::def_id::{DefId, DefIndex}; +use rustc_hir::def_id::DefIndex; use rustc_index::vec::{Idx, IndexVec}; -use crate::middle::exported_symbols::ExportedSymbol; -use crate::mir::Body; -use crate::ty::{ - self, Clause, Const, FnSig, GeneratorDiagnosticData, GenericPredicates, Predicate, TraitRef, Ty, -}; +use crate::ty; pub trait ParameterizedOverTcx: 'static { - #[allow(unused_lifetimes)] type Value<'tcx>; } @@ -67,7 +62,7 @@ trivially_parameterized_over_tcx! { ty::TraitDef, ty::Visibility<DefIndex>, ty::adjustment::CoerceUnsizedInfo, - ty::fast_reject::SimplifiedTypeGen<DefId>, + ty::fast_reject::SimplifiedType, rustc_ast::Attribute, rustc_ast::DelimArgs, rustc_attr::ConstStability, @@ -100,29 +95,28 @@ trivially_parameterized_over_tcx! { rustc_type_ir::Variance, } -// HACK(compiler-errors): This macro rule can only take an ident, -// not a path, due to parsing ambiguity reasons. That means we gotta -// import all of these types above. +// HACK(compiler-errors): This macro rule can only take a fake path, +// not a real, due to parsing ambiguity reasons. #[macro_export] macro_rules! parameterized_over_tcx { - ($($ident:ident),+ $(,)?) => { + ($($($fake_path:ident)::+),+ $(,)?) => { $( - impl $crate::ty::ParameterizedOverTcx for $ident<'static> { - type Value<'tcx> = $ident<'tcx>; + impl $crate::ty::ParameterizedOverTcx for $($fake_path)::+<'static> { + type Value<'tcx> = $($fake_path)::+<'tcx>; } )* } } parameterized_over_tcx! { - Ty, - FnSig, - GenericPredicates, - TraitRef, - Const, - Predicate, - Clause, - GeneratorDiagnosticData, - Body, - ExportedSymbol, + crate::middle::exported_symbols::ExportedSymbol, + crate::mir::Body, + ty::Ty, + ty::FnSig, + ty::GenericPredicates, + ty::TraitRef, + ty::Const, + ty::Predicate, + ty::Clause, + ty::GeneratorDiagnosticData, } diff --git a/compiler/rustc_middle/src/ty/print/mod.rs b/compiler/rustc_middle/src/ty/print/mod.rs index 667298b9b5b..29bad33e4bc 100644 --- a/compiler/rustc_middle/src/ty/print/mod.rs +++ b/compiler/rustc_middle/src/ty/print/mod.rs @@ -169,10 +169,8 @@ pub trait Printer<'tcx>: Sized { self.path_append( |cx: Self| { if trait_qualify_parent { - let trait_ref = ty::TraitRef::new( - parent_def_id, - cx.tcx().intern_substs(parent_substs), - ); + let trait_ref = + cx.tcx().mk_trait_ref(parent_def_id, parent_substs.iter().copied()); cx.path_qualified(trait_ref.self_ty(), Some(trait_ref)) } else { cx.print_def_path(parent_def_id, parent_substs) @@ -275,10 +273,9 @@ fn characteristic_def_id_of_type_cached<'a>( | ty::Uint(_) | ty::Str | ty::FnPtr(_) - | ty::Projection(_) + | ty::Alias(..) | ty::Placeholder(..) | ty::Param(_) - | ty::Opaque(..) | ty::Infer(_) | ty::Bound(..) | ty::Error(_) diff --git a/compiler/rustc_middle/src/ty/print/pretty.rs b/compiler/rustc_middle/src/ty/print/pretty.rs index 6bf42f81f13..a1d53506707 100644 --- a/compiler/rustc_middle/src/ty/print/pretty.rs +++ b/compiler/rustc_middle/src/ty/print/pretty.rs @@ -16,6 +16,7 @@ use rustc_session::config::TrimmedDefPaths; use rustc_session::cstore::{ExternCrate, ExternCrateSource}; use rustc_session::Limit; use rustc_span::symbol::{kw, Ident, Symbol}; +use rustc_span::FileNameDisplayPreference; use rustc_target::abi::Size; use rustc_target::spec::abi::Abi; use smallvec::SmallVec; @@ -718,17 +719,17 @@ pub trait PrettyPrinter<'tcx>: ty::Foreign(def_id) => { p!(print_def_path(def_id, &[])); } - ty::Projection(ref data) => { + ty::Alias(ty::Projection, ref data) => { if !(self.should_print_verbose() || NO_QUERIES.with(|q| q.get())) - && self.tcx().def_kind(data.item_def_id) == DefKind::ImplTraitPlaceholder + && self.tcx().def_kind(data.def_id) == DefKind::ImplTraitPlaceholder { - return self.pretty_print_opaque_impl_type(data.item_def_id, data.substs); + return self.pretty_print_opaque_impl_type(data.def_id, data.substs); } else { p!(print(data)) } } ty::Placeholder(placeholder) => p!(write("Placeholder({:?})", placeholder)), - ty::Opaque(def_id, substs) => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => { // FIXME(eddyb) print this with `print_def_path`. // We use verbose printing in 'NO_QUERIES' mode, to // avoid needing to call `predicates_of`. This should @@ -743,7 +744,9 @@ pub trait PrettyPrinter<'tcx>: let parent = self.tcx().parent(def_id); match self.tcx().def_kind(parent) { DefKind::TyAlias | DefKind::AssocTy => { - if let ty::Opaque(d, _) = *self.tcx().type_of(parent).kind() { + if let ty::Alias(ty::Opaque, ty::AliasTy { def_id: d, .. }) = + *self.tcx().type_of(parent).kind() + { if d == def_id { // If the type alias directly starts with the `impl` of the // opaque type we're printing, then skip the `::{opaque#1}`. @@ -816,11 +819,16 @@ pub trait PrettyPrinter<'tcx>: p!("@", print_def_path(did.to_def_id(), substs)); } else { let span = self.tcx().def_span(did); + let preference = if FORCE_TRIMMED_PATH.with(|flag| flag.get()) { + FileNameDisplayPreference::Short + } else { + FileNameDisplayPreference::Remapped + }; p!(write( "@{}", // This may end up in stderr diagnostics but it may also be emitted // into MIR. Hence we use the remapped path if available - self.tcx().sess.source_map().span_to_embeddable_string(span) + self.tcx().sess.source_map().span_to_string(span, preference) )); } } else { @@ -1019,8 +1027,8 @@ pub trait PrettyPrinter<'tcx>: // Skip printing `<[generator@] as Generator<_>>::Return` from async blocks, // unless we can find out what generator return type it comes from. let term = if let Some(ty) = term.skip_binder().ty() - && let ty::Projection(proj) = ty.kind() - && let Some(assoc) = tcx.opt_associated_item(proj.item_def_id) + && let ty::Alias(ty::Projection, proj) = ty.kind() + && let Some(assoc) = tcx.opt_associated_item(proj.def_id) && assoc.trait_container(tcx) == tcx.lang_items().gen_trait() && assoc.name == rustc_span::sym::Return { @@ -2653,7 +2661,7 @@ define_print_and_forward_display! { } ty::ExistentialProjection<'tcx> { - let name = cx.tcx().associated_item(self.item_def_id).name; + let name = cx.tcx().associated_item(self.def_id).name; p!(write("{} = ", name), print(self.term)) } @@ -2740,8 +2748,8 @@ define_print_and_forward_display! { } } - ty::ProjectionTy<'tcx> { - p!(print_def_path(self.item_def_id, self.substs)); + ty::AliasTy<'tcx> { + p!(print_def_path(self.def_id, self.substs)); } ty::ClosureKind { diff --git a/compiler/rustc_middle/src/ty/relate.rs b/compiler/rustc_middle/src/ty/relate.rs index c759fb6d5e4..c4116558bd2 100644 --- a/compiler/rustc_middle/src/ty/relate.rs +++ b/compiler/rustc_middle/src/ty/relate.rs @@ -106,7 +106,7 @@ pub trait TypeRelation<'tcx>: Sized { T: Relate<'tcx>; } -pub trait Relate<'tcx>: TypeFoldable<'tcx> + Copy { +pub trait Relate<'tcx>: TypeFoldable<'tcx> + PartialEq + Copy { fn relate<R: TypeRelation<'tcx>>( relation: &mut R, a: Self, @@ -270,21 +270,17 @@ impl<'tcx> Relate<'tcx> for abi::Abi { } } -impl<'tcx> Relate<'tcx> for ty::ProjectionTy<'tcx> { +impl<'tcx> Relate<'tcx> for ty::AliasTy<'tcx> { fn relate<R: TypeRelation<'tcx>>( relation: &mut R, - a: ty::ProjectionTy<'tcx>, - b: ty::ProjectionTy<'tcx>, - ) -> RelateResult<'tcx, ty::ProjectionTy<'tcx>> { - if a.item_def_id != b.item_def_id { - Err(TypeError::ProjectionMismatched(expected_found( - relation, - a.item_def_id, - b.item_def_id, - ))) + a: ty::AliasTy<'tcx>, + b: ty::AliasTy<'tcx>, + ) -> RelateResult<'tcx, ty::AliasTy<'tcx>> { + if a.def_id != b.def_id { + Err(TypeError::ProjectionMismatched(expected_found(relation, a.def_id, b.def_id))) } else { let substs = relation.relate(a.substs, b.substs)?; - Ok(ty::ProjectionTy { item_def_id: a.item_def_id, substs: &substs }) + Ok(relation.tcx().mk_alias_ty(a.def_id, substs)) } } } @@ -295,12 +291,8 @@ impl<'tcx> Relate<'tcx> for ty::ExistentialProjection<'tcx> { a: ty::ExistentialProjection<'tcx>, b: ty::ExistentialProjection<'tcx>, ) -> RelateResult<'tcx, ty::ExistentialProjection<'tcx>> { - if a.item_def_id != b.item_def_id { - Err(TypeError::ProjectionMismatched(expected_found( - relation, - a.item_def_id, - b.item_def_id, - ))) + if a.def_id != b.def_id { + Err(TypeError::ProjectionMismatched(expected_found(relation, a.def_id, b.def_id))) } else { let term = relation.relate_with_variance( ty::Invariant, @@ -314,7 +306,7 @@ impl<'tcx> Relate<'tcx> for ty::ExistentialProjection<'tcx> { a.substs, b.substs, )?; - Ok(ty::ExistentialProjection { item_def_id: a.item_def_id, substs, term }) + Ok(ty::ExistentialProjection { def_id: a.def_id, substs, term }) } } } @@ -330,7 +322,7 @@ impl<'tcx> Relate<'tcx> for ty::TraitRef<'tcx> { Err(TypeError::Traits(expected_found(relation, a.def_id, b.def_id))) } else { let substs = relate_substs(relation, a.substs, b.substs)?; - Ok(ty::TraitRef { def_id: a.def_id, substs }) + Ok(relation.tcx().mk_trait_ref(a.def_id, substs)) } } } @@ -351,7 +343,7 @@ impl<'tcx> Relate<'tcx> for ty::ExistentialTraitRef<'tcx> { } } -#[derive(Copy, Debug, Clone, TypeFoldable, TypeVisitable)] +#[derive(PartialEq, Copy, Debug, Clone, TypeFoldable, TypeVisitable)] struct GeneratorWitness<'tcx>(&'tcx ty::List<Ty<'tcx>>); impl<'tcx> Relate<'tcx> for GeneratorWitness<'tcx> { @@ -559,14 +551,15 @@ pub fn super_relate_tys<'tcx, R: TypeRelation<'tcx>>( } // these two are already handled downstream in case of lazy normalization - (&ty::Projection(a_data), &ty::Projection(b_data)) => { + (&ty::Alias(ty::Projection, a_data), &ty::Alias(ty::Projection, b_data)) => { let projection_ty = relation.relate(a_data, b_data)?; - Ok(tcx.mk_projection(projection_ty.item_def_id, projection_ty.substs)) + Ok(tcx.mk_projection(projection_ty.def_id, projection_ty.substs)) } - (&ty::Opaque(a_def_id, a_substs), &ty::Opaque(b_def_id, b_substs)) - if a_def_id == b_def_id => - { + ( + &ty::Alias(ty::Opaque, ty::AliasTy { def_id: a_def_id, substs: a_substs, .. }), + &ty::Alias(ty::Opaque, ty::AliasTy { def_id: b_def_id, substs: b_substs, .. }), + ) if a_def_id == b_def_id => { if relation.intercrate() { // During coherence, opaque types should be treated as equal to each other, even if their generic params // differ, as they could resolve to the same hidden type, even for different generic params. diff --git a/compiler/rustc_middle/src/ty/structural_impls.rs b/compiler/rustc_middle/src/ty/structural_impls.rs index 9f70b4f1ffd..3c6800cf293 100644 --- a/compiler/rustc_middle/src/ty/structural_impls.rs +++ b/compiler/rustc_middle/src/ty/structural_impls.rs @@ -651,8 +651,7 @@ impl<'tcx> TypeSuperFoldable<'tcx> for Ty<'tcx> { } ty::GeneratorWitness(types) => ty::GeneratorWitness(types.try_fold_with(folder)?), ty::Closure(did, substs) => ty::Closure(did, substs.try_fold_with(folder)?), - ty::Projection(data) => ty::Projection(data.try_fold_with(folder)?), - ty::Opaque(did, substs) => ty::Opaque(did, substs.try_fold_with(folder)?), + ty::Alias(kind, data) => ty::Alias(kind, data.try_fold_with(folder)?), ty::Bool | ty::Char @@ -697,8 +696,7 @@ impl<'tcx> TypeSuperVisitable<'tcx> for Ty<'tcx> { ty::Generator(_did, ref substs, _) => substs.visit_with(visitor), ty::GeneratorWitness(ref types) => types.visit_with(visitor), ty::Closure(_did, ref substs) => substs.visit_with(visitor), - ty::Projection(ref data) => data.visit_with(visitor), - ty::Opaque(_, ref substs) => substs.visit_with(visitor), + ty::Alias(_, ref data) => data.visit_with(visitor), ty::Bool | ty::Char diff --git a/compiler/rustc_middle/src/ty/sty.rs b/compiler/rustc_middle/src/ty/sty.rs index 9cbda95a4df..66aeebab88b 100644 --- a/compiler/rustc_middle/src/ty/sty.rs +++ b/compiler/rustc_middle/src/ty/sty.rs @@ -217,7 +217,7 @@ static_assert_size!(TyKind<'_>, 32); /// * `GR`: The "return type", which is the type of value returned upon /// completion of the generator. /// * `GW`: The "generator witness". -#[derive(Copy, Clone, Debug, TypeFoldable, TypeVisitable, Lift)] +#[derive(Copy, Clone, PartialEq, Eq, Debug, TypeFoldable, TypeVisitable, Lift)] pub struct ClosureSubsts<'tcx> { /// Lifetime and type parameters from the enclosing function, /// concatenated with a tuple containing the types of the upvars. @@ -348,7 +348,7 @@ impl<'tcx> ClosureSubsts<'tcx> { } /// Similar to `ClosureSubsts`; see the above documentation for more. -#[derive(Copy, Clone, Debug, TypeFoldable, TypeVisitable, Lift)] +#[derive(Copy, Clone, PartialEq, Eq, Debug, TypeFoldable, TypeVisitable, Lift)] pub struct GeneratorSubsts<'tcx> { pub substs: SubstsRef<'tcx>, } @@ -693,7 +693,7 @@ impl<'tcx> ExistentialPredicate<'tcx> { match (*self, *other) { (Trait(_), Trait(_)) => Ordering::Equal, (Projection(ref a), Projection(ref b)) => { - tcx.def_path_hash(a.item_def_id).cmp(&tcx.def_path_hash(b.item_def_id)) + tcx.def_path_hash(a.def_id).cmp(&tcx.def_path_hash(b.def_id)) } (AutoTrait(ref a), AutoTrait(ref b)) => { tcx.def_path_hash(*a).cmp(&tcx.def_path_hash(*b)) @@ -816,14 +816,13 @@ impl<'tcx> List<ty::PolyExistentialPredicate<'tcx>> { pub struct TraitRef<'tcx> { pub def_id: DefId, pub substs: SubstsRef<'tcx>, + /// This field exists to prevent the creation of `TraitRef` without + /// calling [TyCtxt::mk_trait_ref]. + pub(super) _use_mk_trait_ref_instead: (), } impl<'tcx> TraitRef<'tcx> { - pub fn new(def_id: DefId, substs: SubstsRef<'tcx>) -> TraitRef<'tcx> { - TraitRef { def_id, substs } - } - - pub fn with_self_type(self, tcx: TyCtxt<'tcx>, self_ty: Ty<'tcx>) -> Self { + pub fn with_self_ty(self, tcx: TyCtxt<'tcx>, self_ty: Ty<'tcx>) -> Self { tcx.mk_trait_ref( self.def_id, [self_ty.into()].into_iter().chain(self.substs.iter().skip(1)), @@ -833,10 +832,7 @@ impl<'tcx> TraitRef<'tcx> { /// Returns a `TraitRef` of the form `P0: Foo<P1..Pn>` where `Pi` /// are the parameters defined on trait. pub fn identity(tcx: TyCtxt<'tcx>, def_id: DefId) -> Binder<'tcx, TraitRef<'tcx>> { - ty::Binder::dummy(TraitRef { - def_id, - substs: InternalSubsts::identity_for_item(tcx, def_id), - }) + ty::Binder::dummy(tcx.mk_trait_ref(def_id, InternalSubsts::identity_for_item(tcx, def_id))) } #[inline] @@ -850,7 +846,7 @@ impl<'tcx> TraitRef<'tcx> { substs: SubstsRef<'tcx>, ) -> ty::TraitRef<'tcx> { let defs = tcx.generics_of(trait_id); - ty::TraitRef { def_id: trait_id, substs: tcx.intern_substs(&substs[..defs.params.len()]) } + tcx.mk_trait_ref(trait_id, tcx.intern_substs(&substs[..defs.params.len()])) } } @@ -980,8 +976,12 @@ where /// contain any bound vars that would be bound by the /// binder. This is commonly used to 'inject' a value T into a /// different binding level. + #[track_caller] pub fn dummy(value: T) -> Binder<'tcx, T> { - assert!(!value.has_escaping_bound_vars()); + assert!( + !value.has_escaping_bound_vars(), + "`{value:?}` has escaping bound vars, so it cannot be wrapped in a dummy binder." + ); Binder(value, ty::List::empty()) } @@ -1128,28 +1128,52 @@ impl<'tcx, T> Binder<'tcx, Option<T>> { } } -/// Represents the projection of an associated type. In explicit UFCS -/// form this would be written `<T as Trait<..>>::N`. +impl<'tcx, T: IntoIterator> Binder<'tcx, T> { + pub fn iter(self) -> impl Iterator<Item = ty::Binder<'tcx, T::Item>> { + let bound_vars = self.1; + self.0.into_iter().map(|v| Binder(v, bound_vars)) + } +} + +/// Represents the projection of an associated type. +/// +/// For a projection, this would be `<Ty as Trait<...>>::N`. +/// +/// For an opaque type, there is no explicit syntax. #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, TyEncodable, TyDecodable)] #[derive(HashStable, TypeFoldable, TypeVisitable, Lift)] -pub struct ProjectionTy<'tcx> { - /// The parameters of the associated item. +pub struct AliasTy<'tcx> { + /// The parameters of the associated or opaque item. + /// + /// For a projection, these are the substitutions for the trait and the + /// GAT substitutions, if there are any. + /// + /// For RPIT the substitutions are for the generics of the function, + /// while for TAIT it is used for the generic parameters of the alias. pub substs: SubstsRef<'tcx>, - /// The `DefId` of the `TraitItem` for the associated type `N`. + /// The `DefId` of the `TraitItem` for the associated type `N` if this is a projection, + /// or the `OpaqueType` item if this is an opaque. /// - /// Note that this is not the `DefId` of the `TraitRef` containing this - /// associated type, which is in `tcx.associated_item(item_def_id).container`, - /// aka. `tcx.parent(item_def_id).unwrap()`. - pub item_def_id: DefId, + /// During codegen, `tcx.type_of(def_id)` can be used to get the type of the + /// underlying type if the type is an opaque. + /// + /// Note that if this is an associated type, this is not the `DefId` of the + /// `TraitRef` containing this associated type, which is in `tcx.associated_item(def_id).container`, + /// aka. `tcx.parent(def_id)`. + pub def_id: DefId, + + /// This field exists to prevent the creation of `ProjectionTy` without using + /// [TyCtxt::mk_alias_ty]. + pub(super) _use_mk_alias_ty_instead: (), } -impl<'tcx> ProjectionTy<'tcx> { +impl<'tcx> AliasTy<'tcx> { pub fn trait_def_id(&self, tcx: TyCtxt<'tcx>) -> DefId { - match tcx.def_kind(self.item_def_id) { - DefKind::AssocTy | DefKind::AssocConst => tcx.parent(self.item_def_id), + match tcx.def_kind(self.def_id) { + DefKind::AssocTy | DefKind::AssocConst => tcx.parent(self.def_id), DefKind::ImplTraitPlaceholder => { - tcx.parent(tcx.impl_trait_in_trait_parent(self.item_def_id)) + tcx.parent(tcx.impl_trait_in_trait_parent(self.def_id)) } kind => bug!("unexpected DefKind in ProjectionTy: {kind:?}"), } @@ -1162,11 +1186,11 @@ impl<'tcx> ProjectionTy<'tcx> { &self, tcx: TyCtxt<'tcx>, ) -> (ty::TraitRef<'tcx>, &'tcx [ty::GenericArg<'tcx>]) { - let def_id = tcx.parent(self.item_def_id); - assert_eq!(tcx.def_kind(def_id), DefKind::Trait); - let trait_generics = tcx.generics_of(def_id); + debug_assert!(matches!(tcx.def_kind(self.def_id), DefKind::AssocTy | DefKind::AssocConst)); + let trait_def_id = self.trait_def_id(tcx); + let trait_generics = tcx.generics_of(trait_def_id); ( - ty::TraitRef { def_id, substs: self.substs.truncate_to(tcx, trait_generics) }, + tcx.mk_trait_ref(trait_def_id, self.substs.truncate_to(tcx, trait_generics)), &self.substs[trait_generics.count()..], ) } @@ -1180,7 +1204,7 @@ impl<'tcx> ProjectionTy<'tcx> { /// as well. pub fn trait_ref(&self, tcx: TyCtxt<'tcx>) -> ty::TraitRef<'tcx> { let def_id = self.trait_def_id(tcx); - ty::TraitRef { def_id, substs: self.substs.truncate_to(tcx, tcx.generics_of(def_id)) } + tcx.mk_trait_ref(def_id, self.substs.truncate_to(tcx, tcx.generics_of(def_id))) } pub fn self_ty(&self) -> Ty<'tcx> { @@ -1394,7 +1418,7 @@ impl From<BoundVar> for BoundTy { #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, TyEncodable, TyDecodable)] #[derive(HashStable, TypeFoldable, TypeVisitable, Lift)] pub struct ExistentialProjection<'tcx> { - pub item_def_id: DefId, + pub def_id: DefId, pub substs: SubstsRef<'tcx>, pub term: Term<'tcx>, } @@ -1407,7 +1431,7 @@ impl<'tcx> ExistentialProjection<'tcx> { /// then this function would return an `exists T. T: Iterator` existential trait /// reference. pub fn trait_ref(&self, tcx: TyCtxt<'tcx>) -> ty::ExistentialTraitRef<'tcx> { - let def_id = tcx.parent(self.item_def_id); + let def_id = tcx.parent(self.def_id); let subst_count = tcx.generics_of(def_id).count() - 1; let substs = tcx.intern_substs(&self.substs[..subst_count]); ty::ExistentialTraitRef { def_id, substs } @@ -1422,10 +1446,8 @@ impl<'tcx> ExistentialProjection<'tcx> { debug_assert!(!self_ty.has_escaping_bound_vars()); ty::ProjectionPredicate { - projection_ty: ty::ProjectionTy { - item_def_id: self.item_def_id, - substs: tcx.mk_substs_trait(self_ty, self.substs), - }, + projection_ty: tcx + .mk_alias_ty(self.def_id, [self_ty.into()].into_iter().chain(self.substs)), term: self.term, } } @@ -1438,7 +1460,7 @@ impl<'tcx> ExistentialProjection<'tcx> { projection_predicate.projection_ty.substs.type_at(0); Self { - item_def_id: projection_predicate.projection_ty.item_def_id, + def_id: projection_predicate.projection_ty.def_id, substs: tcx.intern_substs(&projection_predicate.projection_ty.substs[1..]), term: projection_predicate.term, } @@ -1455,7 +1477,7 @@ impl<'tcx> PolyExistentialProjection<'tcx> { } pub fn item_def_id(&self) -> DefId { - self.skip_binder().item_def_id + self.skip_binder().def_id } } @@ -1962,7 +1984,7 @@ impl<'tcx> Ty<'tcx> { #[inline] pub fn is_impl_trait(self) -> bool { - matches!(self.kind(), Opaque(..)) + matches!(self.kind(), Alias(ty::Opaque, ..)) } #[inline] @@ -2029,7 +2051,7 @@ impl<'tcx> Ty<'tcx> { ty::Adt(adt, _) if adt.is_enum() => adt.repr().discr_type().to_ty(tcx), ty::Generator(_, substs, _) => substs.as_generator().discr_ty(tcx), - ty::Param(_) | ty::Projection(_) | ty::Opaque(..) | ty::Infer(ty::TyVar(_)) => { + ty::Param(_) | ty::Alias(..) | ty::Infer(ty::TyVar(_)) => { let assoc_items = tcx.associated_item_def_ids( tcx.require_lang_item(hir::LangItem::DiscriminantKind, None), ); @@ -2109,7 +2131,7 @@ impl<'tcx> Ty<'tcx> { // type parameters only have unit metadata if they're sized, so return true // to make sure we double check this during confirmation - ty::Param(_) | ty::Projection(_) | ty::Opaque(..) => (tcx.types.unit, true), + ty::Param(_) | ty::Alias(..) => (tcx.types.unit, true), ty::Infer(ty::TyVar(_)) | ty::Bound(..) @@ -2185,7 +2207,7 @@ impl<'tcx> Ty<'tcx> { ty::Adt(def, _substs) => def.sized_constraint(tcx).0.is_empty(), - ty::Projection(_) | ty::Param(_) | ty::Opaque(..) => false, + ty::Alias(..) | ty::Param(_) => false, ty::Infer(ty::TyVar(_)) => false, @@ -2241,9 +2263,12 @@ impl<'tcx> Ty<'tcx> { ty::Generator(..) | ty::GeneratorWitness(..) => false, // Might be, but not "trivial" so just giving the safe answer. - ty::Adt(..) | ty::Closure(..) | ty::Opaque(..) => false, + ty::Adt(..) | ty::Closure(..) => false, + + // Needs normalization or revealing to determine, so no is the safe answer. + ty::Alias(..) => false, - ty::Projection(..) | ty::Param(..) | ty::Infer(..) | ty::Error(..) => false, + ty::Param(..) | ty::Infer(..) | ty::Error(..) => false, ty::Bound(..) | ty::Placeholder(..) => { bug!("`is_trivially_pure_clone_copy` applied to unexpected type: {:?}", self); diff --git a/compiler/rustc_middle/src/ty/subst.rs b/compiler/rustc_middle/src/ty/subst.rs index a1b084a5e89..a04b15f8cf1 100644 --- a/compiler/rustc_middle/src/ty/subst.rs +++ b/compiler/rustc_middle/src/ty/subst.rs @@ -90,7 +90,7 @@ impl<'tcx> GenericArgKind<'tcx> { GenericArgKind::Const(ct) => { // Ensure we can use the tag bits. assert_eq!(mem::align_of_val(&*ct.0.0) & TAG_MASK, 0); - (CONST_TAG, ct.0.0 as *const ty::ConstS<'tcx> as usize) + (CONST_TAG, ct.0.0 as *const ty::ConstData<'tcx> as usize) } }; @@ -166,7 +166,7 @@ impl<'tcx> GenericArg<'tcx> { &*((ptr & !TAG_MASK) as *const WithCachedTypeInfo<ty::TyKind<'tcx>>), ))), CONST_TAG => GenericArgKind::Const(ty::Const(Interned::new_unchecked( - &*((ptr & !TAG_MASK) as *const ty::ConstS<'tcx>), + &*((ptr & !TAG_MASK) as *const ty::ConstData<'tcx>), ))), _ => intrinsics::unreachable(), } @@ -252,7 +252,7 @@ impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for GenericArg<'tcx> { } } -/// A substitution mapping generic parameters to new values. +/// List of generic arguments that are gonna be used to substitute generic parameters. pub type InternalSubsts<'tcx> = List<GenericArg<'tcx>>; pub type SubstsRef<'tcx> = &'tcx InternalSubsts<'tcx>; diff --git a/compiler/rustc_middle/src/ty/typeck_results.rs b/compiler/rustc_middle/src/ty/typeck_results.rs new file mode 100644 index 00000000000..4fe85d4366f --- /dev/null +++ b/compiler/rustc_middle/src/ty/typeck_results.rs @@ -0,0 +1,689 @@ +use crate::{ + hir::place::Place as HirPlace, + infer::canonical::Canonical, + ty::{ + self, tls, BindingMode, BoundVar, CanonicalPolyFnSig, ClosureSizeProfileData, + GenericArgKind, InternalSubsts, SubstsRef, Ty, UserSubsts, + }, +}; +use rustc_data_structures::{fx::FxHashMap, sync::Lrc, unord::UnordSet, vec_map::VecMap}; +use rustc_errors::ErrorGuaranteed; +use rustc_hir as hir; +use rustc_hir::{ + def::{DefKind, Res}, + def_id::{DefId, LocalDefId, LocalDefIdMap}, + hir_id::OwnerId, + HirId, ItemLocalId, ItemLocalMap, ItemLocalSet, +}; +use rustc_index::vec::{Idx, IndexVec}; +use rustc_macros::HashStable; +use rustc_middle::mir::FakeReadCause; +use rustc_session::Session; +use rustc_span::Span; +use std::{ + collections::hash_map::{self, Entry}, + hash::Hash, + iter, +}; + +use super::RvalueScopes; + +#[derive(TyEncodable, TyDecodable, Debug, HashStable)] +pub struct TypeckResults<'tcx> { + /// The `HirId::owner` all `ItemLocalId`s in this table are relative to. + pub hir_owner: OwnerId, + + /// Resolved definitions for `<T>::X` associated paths and + /// method calls, including those of overloaded operators. + type_dependent_defs: ItemLocalMap<Result<(DefKind, DefId), ErrorGuaranteed>>, + + /// Resolved field indices for field accesses in expressions (`S { field }`, `obj.field`) + /// or patterns (`S { field }`). The index is often useful by itself, but to learn more + /// about the field you also need definition of the variant to which the field + /// belongs, but it may not exist if it's a tuple field (`tuple.0`). + field_indices: ItemLocalMap<usize>, + + /// Stores the types for various nodes in the AST. Note that this table + /// is not guaranteed to be populated outside inference. See + /// typeck::check::fn_ctxt for details. + node_types: ItemLocalMap<Ty<'tcx>>, + + /// Stores the type parameters which were substituted to obtain the type + /// of this node. This only applies to nodes that refer to entities + /// parameterized by type parameters, such as generic fns, types, or + /// other items. + node_substs: ItemLocalMap<SubstsRef<'tcx>>, + + /// This will either store the canonicalized types provided by the user + /// or the substitutions that the user explicitly gave (if any) attached + /// to `id`. These will not include any inferred values. The canonical form + /// is used to capture things like `_` or other unspecified values. + /// + /// For example, if the user wrote `foo.collect::<Vec<_>>()`, then the + /// canonical substitutions would include only `for<X> { Vec<X> }`. + /// + /// See also `AscribeUserType` statement in MIR. + user_provided_types: ItemLocalMap<CanonicalUserType<'tcx>>, + + /// Stores the canonicalized types provided by the user. See also + /// `AscribeUserType` statement in MIR. + pub user_provided_sigs: LocalDefIdMap<CanonicalPolyFnSig<'tcx>>, + + adjustments: ItemLocalMap<Vec<ty::adjustment::Adjustment<'tcx>>>, + + /// Stores the actual binding mode for all instances of hir::BindingAnnotation. + pat_binding_modes: ItemLocalMap<BindingMode>, + + /// Stores the types which were implicitly dereferenced in pattern binding modes + /// for later usage in THIR lowering. For example, + /// + /// ``` + /// match &&Some(5i32) { + /// Some(n) => {}, + /// _ => {}, + /// } + /// ``` + /// leads to a `vec![&&Option<i32>, &Option<i32>]`. Empty vectors are not stored. + /// + /// See: + /// <https://github.com/rust-lang/rfcs/blob/master/text/2005-match-ergonomics.md#definitions> + pat_adjustments: ItemLocalMap<Vec<Ty<'tcx>>>, + + /// Records the reasons that we picked the kind of each closure; + /// not all closures are present in the map. + closure_kind_origins: ItemLocalMap<(Span, HirPlace<'tcx>)>, + + /// For each fn, records the "liberated" types of its arguments + /// and return type. Liberated means that all bound regions + /// (including late-bound regions) are replaced with free + /// equivalents. This table is not used in codegen (since regions + /// are erased there) and hence is not serialized to metadata. + /// + /// This table also contains the "revealed" values for any `impl Trait` + /// that appear in the signature and whose values are being inferred + /// by this function. + /// + /// # Example + /// + /// ```rust + /// # use std::fmt::Debug; + /// fn foo(x: &u32) -> impl Debug { *x } + /// ``` + /// + /// The function signature here would be: + /// + /// ```ignore (illustrative) + /// for<'a> fn(&'a u32) -> Foo + /// ``` + /// + /// where `Foo` is an opaque type created for this function. + /// + /// + /// The *liberated* form of this would be + /// + /// ```ignore (illustrative) + /// fn(&'a u32) -> u32 + /// ``` + /// + /// Note that `'a` is not bound (it would be an `ReFree`) and + /// that the `Foo` opaque type is replaced by its hidden type. + liberated_fn_sigs: ItemLocalMap<ty::FnSig<'tcx>>, + + /// For each FRU expression, record the normalized types of the fields + /// of the struct - this is needed because it is non-trivial to + /// normalize while preserving regions. This table is used only in + /// MIR construction and hence is not serialized to metadata. + fru_field_types: ItemLocalMap<Vec<Ty<'tcx>>>, + + /// For every coercion cast we add the HIR node ID of the cast + /// expression to this set. + coercion_casts: ItemLocalSet, + + /// Set of trait imports actually used in the method resolution. + /// This is used for warning unused imports. During type + /// checking, this `Lrc` should not be cloned: it must have a ref-count + /// of 1 so that we can insert things into the set mutably. + pub used_trait_imports: Lrc<UnordSet<LocalDefId>>, + + /// If any errors occurred while type-checking this body, + /// this field will be set to `Some(ErrorGuaranteed)`. + pub tainted_by_errors: Option<ErrorGuaranteed>, + + /// All the opaque types that have hidden types set + /// by this function. We also store the + /// type here, so that mir-borrowck can use it as a hint for figuring out hidden types, + /// even if they are only set in dead code (which doesn't show up in MIR). + pub concrete_opaque_types: VecMap<LocalDefId, ty::OpaqueHiddenType<'tcx>>, + + /// Tracks the minimum captures required for a closure; + /// see `MinCaptureInformationMap` for more details. + pub closure_min_captures: ty::MinCaptureInformationMap<'tcx>, + + /// Tracks the fake reads required for a closure and the reason for the fake read. + /// When performing pattern matching for closures, there are times we don't end up + /// reading places that are mentioned in a closure (because of _ patterns). However, + /// to ensure the places are initialized, we introduce fake reads. + /// Consider these two examples: + /// ``` (discriminant matching with only wildcard arm) + /// let x: u8; + /// let c = || match x { _ => () }; + /// ``` + /// In this example, we don't need to actually read/borrow `x` in `c`, and so we don't + /// want to capture it. However, we do still want an error here, because `x` should have + /// to be initialized at the point where c is created. Therefore, we add a "fake read" + /// instead. + /// ``` (destructured assignments) + /// let c = || { + /// let (t1, t2) = t; + /// } + /// ``` + /// In the second example, we capture the disjoint fields of `t` (`t.0` & `t.1`), but + /// we never capture `t`. This becomes an issue when we build MIR as we require + /// information on `t` in order to create place `t.0` and `t.1`. We can solve this + /// issue by fake reading `t`. + pub closure_fake_reads: FxHashMap<LocalDefId, Vec<(HirPlace<'tcx>, FakeReadCause, hir::HirId)>>, + + /// Tracks the rvalue scoping rules which defines finer scoping for rvalue expressions + /// by applying extended parameter rules. + /// Details may be find in `rustc_hir_analysis::check::rvalue_scopes`. + pub rvalue_scopes: RvalueScopes, + + /// Stores the type, expression, span and optional scope span of all types + /// that are live across the yield of this generator (if a generator). + pub generator_interior_types: ty::Binder<'tcx, Vec<GeneratorInteriorTypeCause<'tcx>>>, + + /// We sometimes treat byte string literals (which are of type `&[u8; N]`) + /// as `&[u8]`, depending on the pattern in which they are used. + /// This hashset records all instances where we behave + /// like this to allow `const_to_pat` to reliably handle this situation. + pub treat_byte_string_as_slice: ItemLocalSet, + + /// Contains the data for evaluating the effect of feature `capture_disjoint_fields` + /// on closure size. + pub closure_size_eval: FxHashMap<LocalDefId, ClosureSizeProfileData<'tcx>>, +} + +/// Whenever a value may be live across a generator yield, the type of that value winds up in the +/// `GeneratorInteriorTypeCause` struct. This struct adds additional information about such +/// captured types that can be useful for diagnostics. In particular, it stores the span that +/// caused a given type to be recorded, along with the scope that enclosed the value (which can +/// be used to find the await that the value is live across). +/// +/// For example: +/// +/// ```ignore (pseudo-Rust) +/// async move { +/// let x: T = expr; +/// foo.await +/// ... +/// } +/// ``` +/// +/// Here, we would store the type `T`, the span of the value `x`, the "scope-span" for +/// the scope that contains `x`, the expr `T` evaluated from, and the span of `foo.await`. +#[derive(TyEncodable, TyDecodable, Clone, Debug, Eq, Hash, PartialEq, HashStable)] +#[derive(TypeFoldable, TypeVisitable)] +pub struct GeneratorInteriorTypeCause<'tcx> { + /// Type of the captured binding. + pub ty: Ty<'tcx>, + /// Span of the binding that was captured. + pub span: Span, + /// Span of the scope of the captured binding. + pub scope_span: Option<Span>, + /// Span of `.await` or `yield` expression. + pub yield_span: Span, + /// Expr which the type evaluated from. + pub expr: Option<hir::HirId>, +} + +// This type holds diagnostic information on generators and async functions across crate boundaries +// and is used to provide better error messages +#[derive(TyEncodable, TyDecodable, Clone, Debug, HashStable)] +pub struct GeneratorDiagnosticData<'tcx> { + pub generator_interior_types: ty::Binder<'tcx, Vec<GeneratorInteriorTypeCause<'tcx>>>, + pub hir_owner: DefId, + pub nodes_types: ItemLocalMap<Ty<'tcx>>, + pub adjustments: ItemLocalMap<Vec<ty::adjustment::Adjustment<'tcx>>>, +} + +impl<'tcx> TypeckResults<'tcx> { + pub fn new(hir_owner: OwnerId) -> TypeckResults<'tcx> { + TypeckResults { + hir_owner, + type_dependent_defs: Default::default(), + field_indices: Default::default(), + user_provided_types: Default::default(), + user_provided_sigs: Default::default(), + node_types: Default::default(), + node_substs: Default::default(), + adjustments: Default::default(), + pat_binding_modes: Default::default(), + pat_adjustments: Default::default(), + closure_kind_origins: Default::default(), + liberated_fn_sigs: Default::default(), + fru_field_types: Default::default(), + coercion_casts: Default::default(), + used_trait_imports: Lrc::new(Default::default()), + tainted_by_errors: None, + concrete_opaque_types: Default::default(), + closure_min_captures: Default::default(), + closure_fake_reads: Default::default(), + rvalue_scopes: Default::default(), + generator_interior_types: ty::Binder::dummy(Default::default()), + treat_byte_string_as_slice: Default::default(), + closure_size_eval: Default::default(), + } + } + + /// Returns the final resolution of a `QPath` in an `Expr` or `Pat` node. + pub fn qpath_res(&self, qpath: &hir::QPath<'_>, id: hir::HirId) -> Res { + match *qpath { + hir::QPath::Resolved(_, ref path) => path.res, + hir::QPath::TypeRelative(..) | hir::QPath::LangItem(..) => self + .type_dependent_def(id) + .map_or(Res::Err, |(kind, def_id)| Res::Def(kind, def_id)), + } + } + + pub fn type_dependent_defs( + &self, + ) -> LocalTableInContext<'_, Result<(DefKind, DefId), ErrorGuaranteed>> { + LocalTableInContext { hir_owner: self.hir_owner, data: &self.type_dependent_defs } + } + + pub fn type_dependent_def(&self, id: HirId) -> Option<(DefKind, DefId)> { + validate_hir_id_for_typeck_results(self.hir_owner, id); + self.type_dependent_defs.get(&id.local_id).cloned().and_then(|r| r.ok()) + } + + pub fn type_dependent_def_id(&self, id: HirId) -> Option<DefId> { + self.type_dependent_def(id).map(|(_, def_id)| def_id) + } + + pub fn type_dependent_defs_mut( + &mut self, + ) -> LocalTableInContextMut<'_, Result<(DefKind, DefId), ErrorGuaranteed>> { + LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.type_dependent_defs } + } + + pub fn field_indices(&self) -> LocalTableInContext<'_, usize> { + LocalTableInContext { hir_owner: self.hir_owner, data: &self.field_indices } + } + + pub fn field_indices_mut(&mut self) -> LocalTableInContextMut<'_, usize> { + LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.field_indices } + } + + pub fn field_index(&self, id: hir::HirId) -> usize { + self.field_indices().get(id).cloned().expect("no index for a field") + } + + pub fn opt_field_index(&self, id: hir::HirId) -> Option<usize> { + self.field_indices().get(id).cloned() + } + + pub fn user_provided_types(&self) -> LocalTableInContext<'_, CanonicalUserType<'tcx>> { + LocalTableInContext { hir_owner: self.hir_owner, data: &self.user_provided_types } + } + + pub fn user_provided_types_mut( + &mut self, + ) -> LocalTableInContextMut<'_, CanonicalUserType<'tcx>> { + LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.user_provided_types } + } + + pub fn node_types(&self) -> LocalTableInContext<'_, Ty<'tcx>> { + LocalTableInContext { hir_owner: self.hir_owner, data: &self.node_types } + } + + pub fn node_types_mut(&mut self) -> LocalTableInContextMut<'_, Ty<'tcx>> { + LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.node_types } + } + + pub fn get_generator_diagnostic_data(&self) -> GeneratorDiagnosticData<'tcx> { + let generator_interior_type = self.generator_interior_types.map_bound_ref(|vec| { + vec.iter() + .map(|item| { + GeneratorInteriorTypeCause { + ty: item.ty, + span: item.span, + scope_span: item.scope_span, + yield_span: item.yield_span, + expr: None, //FIXME: Passing expression over crate boundaries is impossible at the moment + } + }) + .collect::<Vec<_>>() + }); + GeneratorDiagnosticData { + generator_interior_types: generator_interior_type, + hir_owner: self.hir_owner.to_def_id(), + nodes_types: self.node_types.clone(), + adjustments: self.adjustments.clone(), + } + } + + pub fn node_type(&self, id: hir::HirId) -> Ty<'tcx> { + self.node_type_opt(id).unwrap_or_else(|| { + bug!("node_type: no type for node `{}`", tls::with(|tcx| tcx.hir().node_to_string(id))) + }) + } + + pub fn node_type_opt(&self, id: hir::HirId) -> Option<Ty<'tcx>> { + validate_hir_id_for_typeck_results(self.hir_owner, id); + self.node_types.get(&id.local_id).cloned() + } + + pub fn node_substs_mut(&mut self) -> LocalTableInContextMut<'_, SubstsRef<'tcx>> { + LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.node_substs } + } + + pub fn node_substs(&self, id: hir::HirId) -> SubstsRef<'tcx> { + validate_hir_id_for_typeck_results(self.hir_owner, id); + self.node_substs.get(&id.local_id).cloned().unwrap_or_else(|| InternalSubsts::empty()) + } + + pub fn node_substs_opt(&self, id: hir::HirId) -> Option<SubstsRef<'tcx>> { + validate_hir_id_for_typeck_results(self.hir_owner, id); + self.node_substs.get(&id.local_id).cloned() + } + + /// Returns the type of a pattern as a monotype. Like [`expr_ty`], this function + /// doesn't provide type parameter substitutions. + /// + /// [`expr_ty`]: TypeckResults::expr_ty + pub fn pat_ty(&self, pat: &hir::Pat<'_>) -> Ty<'tcx> { + self.node_type(pat.hir_id) + } + + /// Returns the type of an expression as a monotype. + /// + /// NB (1): This is the PRE-ADJUSTMENT TYPE for the expression. That is, in + /// some cases, we insert `Adjustment` annotations such as auto-deref or + /// auto-ref. The type returned by this function does not consider such + /// adjustments. See `expr_ty_adjusted()` instead. + /// + /// NB (2): This type doesn't provide type parameter substitutions; e.g., if you + /// ask for the type of `id` in `id(3)`, it will return `fn(&isize) -> isize` + /// instead of `fn(ty) -> T with T = isize`. + pub fn expr_ty(&self, expr: &hir::Expr<'_>) -> Ty<'tcx> { + self.node_type(expr.hir_id) + } + + pub fn expr_ty_opt(&self, expr: &hir::Expr<'_>) -> Option<Ty<'tcx>> { + self.node_type_opt(expr.hir_id) + } + + pub fn adjustments(&self) -> LocalTableInContext<'_, Vec<ty::adjustment::Adjustment<'tcx>>> { + LocalTableInContext { hir_owner: self.hir_owner, data: &self.adjustments } + } + + pub fn adjustments_mut( + &mut self, + ) -> LocalTableInContextMut<'_, Vec<ty::adjustment::Adjustment<'tcx>>> { + LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.adjustments } + } + + pub fn expr_adjustments(&self, expr: &hir::Expr<'_>) -> &[ty::adjustment::Adjustment<'tcx>] { + validate_hir_id_for_typeck_results(self.hir_owner, expr.hir_id); + self.adjustments.get(&expr.hir_id.local_id).map_or(&[], |a| &a[..]) + } + + /// Returns the type of `expr`, considering any `Adjustment` + /// entry recorded for that expression. + pub fn expr_ty_adjusted(&self, expr: &hir::Expr<'_>) -> Ty<'tcx> { + self.expr_adjustments(expr).last().map_or_else(|| self.expr_ty(expr), |adj| adj.target) + } + + pub fn expr_ty_adjusted_opt(&self, expr: &hir::Expr<'_>) -> Option<Ty<'tcx>> { + self.expr_adjustments(expr).last().map(|adj| adj.target).or_else(|| self.expr_ty_opt(expr)) + } + + pub fn is_method_call(&self, expr: &hir::Expr<'_>) -> bool { + // Only paths and method calls/overloaded operators have + // entries in type_dependent_defs, ignore the former here. + if let hir::ExprKind::Path(_) = expr.kind { + return false; + } + + matches!(self.type_dependent_defs().get(expr.hir_id), Some(Ok((DefKind::AssocFn, _)))) + } + + pub fn extract_binding_mode(&self, s: &Session, id: HirId, sp: Span) -> Option<BindingMode> { + self.pat_binding_modes().get(id).copied().or_else(|| { + s.delay_span_bug(sp, "missing binding mode"); + None + }) + } + + pub fn pat_binding_modes(&self) -> LocalTableInContext<'_, BindingMode> { + LocalTableInContext { hir_owner: self.hir_owner, data: &self.pat_binding_modes } + } + + pub fn pat_binding_modes_mut(&mut self) -> LocalTableInContextMut<'_, BindingMode> { + LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.pat_binding_modes } + } + + pub fn pat_adjustments(&self) -> LocalTableInContext<'_, Vec<Ty<'tcx>>> { + LocalTableInContext { hir_owner: self.hir_owner, data: &self.pat_adjustments } + } + + pub fn pat_adjustments_mut(&mut self) -> LocalTableInContextMut<'_, Vec<Ty<'tcx>>> { + LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.pat_adjustments } + } + + /// For a given closure, returns the iterator of `ty::CapturedPlace`s that are captured + /// by the closure. + pub fn closure_min_captures_flattened( + &self, + closure_def_id: LocalDefId, + ) -> impl Iterator<Item = &ty::CapturedPlace<'tcx>> { + self.closure_min_captures + .get(&closure_def_id) + .map(|closure_min_captures| closure_min_captures.values().flat_map(|v| v.iter())) + .into_iter() + .flatten() + } + + pub fn closure_kind_origins(&self) -> LocalTableInContext<'_, (Span, HirPlace<'tcx>)> { + LocalTableInContext { hir_owner: self.hir_owner, data: &self.closure_kind_origins } + } + + pub fn closure_kind_origins_mut( + &mut self, + ) -> LocalTableInContextMut<'_, (Span, HirPlace<'tcx>)> { + LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.closure_kind_origins } + } + + pub fn liberated_fn_sigs(&self) -> LocalTableInContext<'_, ty::FnSig<'tcx>> { + LocalTableInContext { hir_owner: self.hir_owner, data: &self.liberated_fn_sigs } + } + + pub fn liberated_fn_sigs_mut(&mut self) -> LocalTableInContextMut<'_, ty::FnSig<'tcx>> { + LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.liberated_fn_sigs } + } + + pub fn fru_field_types(&self) -> LocalTableInContext<'_, Vec<Ty<'tcx>>> { + LocalTableInContext { hir_owner: self.hir_owner, data: &self.fru_field_types } + } + + pub fn fru_field_types_mut(&mut self) -> LocalTableInContextMut<'_, Vec<Ty<'tcx>>> { + LocalTableInContextMut { hir_owner: self.hir_owner, data: &mut self.fru_field_types } + } + + pub fn is_coercion_cast(&self, hir_id: hir::HirId) -> bool { + validate_hir_id_for_typeck_results(self.hir_owner, hir_id); + self.coercion_casts.contains(&hir_id.local_id) + } + + pub fn set_coercion_cast(&mut self, id: ItemLocalId) { + self.coercion_casts.insert(id); + } + + pub fn coercion_casts(&self) -> &ItemLocalSet { + &self.coercion_casts + } +} + +/// Validate that the given HirId (respectively its `local_id` part) can be +/// safely used as a key in the maps of a TypeckResults. For that to be +/// the case, the HirId must have the same `owner` as all the other IDs in +/// this table (signified by `hir_owner`). Otherwise the HirId +/// would be in a different frame of reference and using its `local_id` +/// would result in lookup errors, or worse, in silently wrong data being +/// stored/returned. +#[inline] +fn validate_hir_id_for_typeck_results(hir_owner: OwnerId, hir_id: hir::HirId) { + if hir_id.owner != hir_owner { + invalid_hir_id_for_typeck_results(hir_owner, hir_id); + } +} + +#[cold] +#[inline(never)] +fn invalid_hir_id_for_typeck_results(hir_owner: OwnerId, hir_id: hir::HirId) { + ty::tls::with(|tcx| { + bug!( + "node {} with HirId::owner {:?} cannot be placed in TypeckResults with hir_owner {:?}", + tcx.hir().node_to_string(hir_id), + hir_id.owner, + hir_owner + ) + }); +} + +pub struct LocalTableInContext<'a, V> { + hir_owner: OwnerId, + data: &'a ItemLocalMap<V>, +} + +impl<'a, V> LocalTableInContext<'a, V> { + pub fn contains_key(&self, id: hir::HirId) -> bool { + validate_hir_id_for_typeck_results(self.hir_owner, id); + self.data.contains_key(&id.local_id) + } + + pub fn get(&self, id: hir::HirId) -> Option<&V> { + validate_hir_id_for_typeck_results(self.hir_owner, id); + self.data.get(&id.local_id) + } + + pub fn iter(&self) -> hash_map::Iter<'_, hir::ItemLocalId, V> { + self.data.iter() + } +} + +impl<'a, V> ::std::ops::Index<hir::HirId> for LocalTableInContext<'a, V> { + type Output = V; + + fn index(&self, key: hir::HirId) -> &V { + self.get(key).expect("LocalTableInContext: key not found") + } +} + +pub struct LocalTableInContextMut<'a, V> { + hir_owner: OwnerId, + data: &'a mut ItemLocalMap<V>, +} + +impl<'a, V> LocalTableInContextMut<'a, V> { + pub fn get_mut(&mut self, id: hir::HirId) -> Option<&mut V> { + validate_hir_id_for_typeck_results(self.hir_owner, id); + self.data.get_mut(&id.local_id) + } + + pub fn entry(&mut self, id: hir::HirId) -> Entry<'_, hir::ItemLocalId, V> { + validate_hir_id_for_typeck_results(self.hir_owner, id); + self.data.entry(id.local_id) + } + + pub fn insert(&mut self, id: hir::HirId, val: V) -> Option<V> { + validate_hir_id_for_typeck_results(self.hir_owner, id); + self.data.insert(id.local_id, val) + } + + pub fn remove(&mut self, id: hir::HirId) -> Option<V> { + validate_hir_id_for_typeck_results(self.hir_owner, id); + self.data.remove(&id.local_id) + } +} + +rustc_index::newtype_index! { + pub struct UserTypeAnnotationIndex { + derive [HashStable] + DEBUG_FORMAT = "UserType({})", + const START_INDEX = 0, + } +} + +/// Mapping of type annotation indices to canonical user type annotations. +pub type CanonicalUserTypeAnnotations<'tcx> = + IndexVec<UserTypeAnnotationIndex, CanonicalUserTypeAnnotation<'tcx>>; + +#[derive(Clone, Debug, TyEncodable, TyDecodable, HashStable, TypeFoldable, TypeVisitable, Lift)] +pub struct CanonicalUserTypeAnnotation<'tcx> { + pub user_ty: Box<CanonicalUserType<'tcx>>, + pub span: Span, + pub inferred_ty: Ty<'tcx>, +} + +/// Canonicalized user type annotation. +pub type CanonicalUserType<'tcx> = Canonical<'tcx, UserType<'tcx>>; + +impl<'tcx> CanonicalUserType<'tcx> { + /// Returns `true` if this represents a substitution of the form `[?0, ?1, ?2]`, + /// i.e., each thing is mapped to a canonical variable with the same index. + pub fn is_identity(&self) -> bool { + match self.value { + UserType::Ty(_) => false, + UserType::TypeOf(_, user_substs) => { + if user_substs.user_self_ty.is_some() { + return false; + } + + iter::zip(user_substs.substs, BoundVar::new(0)..).all(|(kind, cvar)| { + match kind.unpack() { + GenericArgKind::Type(ty) => match ty.kind() { + ty::Bound(debruijn, b) => { + // We only allow a `ty::INNERMOST` index in substitutions. + assert_eq!(*debruijn, ty::INNERMOST); + cvar == b.var + } + _ => false, + }, + + GenericArgKind::Lifetime(r) => match *r { + ty::ReLateBound(debruijn, br) => { + // We only allow a `ty::INNERMOST` index in substitutions. + assert_eq!(debruijn, ty::INNERMOST); + cvar == br.var + } + _ => false, + }, + + GenericArgKind::Const(ct) => match ct.kind() { + ty::ConstKind::Bound(debruijn, b) => { + // We only allow a `ty::INNERMOST` index in substitutions. + assert_eq!(debruijn, ty::INNERMOST); + cvar == b + } + _ => false, + }, + } + }) + } + } + } +} + +/// A user-given type annotation attached to a constant. These arise +/// from constants that are named via paths, like `Foo::<A>::new` and +/// so forth. +#[derive(Copy, Clone, Debug, PartialEq, TyEncodable, TyDecodable)] +#[derive(HashStable, TypeFoldable, TypeVisitable, Lift)] +pub enum UserType<'tcx> { + Ty(Ty<'tcx>), + + /// The canonical type is the result of `type_of(def_id)` with the + /// given substitutions applied. + TypeOf(DefId, UserSubsts<'tcx>), +} diff --git a/compiler/rustc_middle/src/ty/util.rs b/compiler/rustc_middle/src/ty/util.rs index 9ea8dc6e69f..857f52c8a24 100644 --- a/compiler/rustc_middle/src/ty/util.rs +++ b/compiler/rustc_middle/src/ty/util.rs @@ -259,7 +259,7 @@ impl<'tcx> TyCtxt<'tcx> { ty::Tuple(_) => break, - ty::Projection(_) | ty::Opaque(..) => { + ty::Alias(..) => { let normalized = normalize(ty); if ty == normalized { return ty; @@ -332,8 +332,7 @@ impl<'tcx> TyCtxt<'tcx> { break; } } - (ty::Projection(_) | ty::Opaque(..), _) - | (_, ty::Projection(_) | ty::Opaque(..)) => { + (ty::Alias(..), _) | (_, ty::Alias(..)) => { // If either side is a projection, attempt to // progress via normalization. (Should be safe to // apply to both sides as normalization is @@ -826,7 +825,7 @@ impl<'tcx> TypeFolder<'tcx> for OpaqueTypeExpander<'tcx> { } fn fold_ty(&mut self, t: Ty<'tcx>) -> Ty<'tcx> { - if let ty::Opaque(def_id, substs) = *t.kind() { + if let ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) = *t.kind() { self.expand_opaque_ty(def_id, substs).unwrap_or(t) } else if t.has_opaque_types() { t.super_fold_with(self) @@ -938,10 +937,9 @@ impl<'tcx> Ty<'tcx> { | ty::Generator(..) | ty::GeneratorWitness(_) | ty::Infer(_) - | ty::Opaque(..) + | ty::Alias(..) | ty::Param(_) - | ty::Placeholder(_) - | ty::Projection(_) => false, + | ty::Placeholder(_) => false, } } @@ -978,10 +976,9 @@ impl<'tcx> Ty<'tcx> { | ty::Generator(..) | ty::GeneratorWitness(_) | ty::Infer(_) - | ty::Opaque(..) + | ty::Alias(..) | ty::Param(_) - | ty::Placeholder(_) - | ty::Projection(_) => false, + | ty::Placeholder(_) => false, } } @@ -1101,12 +1098,9 @@ impl<'tcx> Ty<'tcx> { // // FIXME(ecstaticmorse): Maybe we should `bug` here? This should probably only be // called for known, fully-monomorphized types. - ty::Projection(_) - | ty::Opaque(..) - | ty::Param(_) - | ty::Bound(..) - | ty::Placeholder(_) - | ty::Infer(_) => false, + ty::Alias(..) | ty::Param(_) | ty::Bound(..) | ty::Placeholder(_) | ty::Infer(_) => { + false + } ty::Foreign(_) | ty::GeneratorWitness(..) | ty::Error(_) => false, } @@ -1237,11 +1231,10 @@ pub fn needs_drop_components<'tcx>( // These require checking for `Copy` bounds or `Adt` destructors. ty::Adt(..) - | ty::Projection(..) + | ty::Alias(..) | ty::Param(_) | ty::Bound(..) | ty::Placeholder(..) - | ty::Opaque(..) | ty::Infer(_) | ty::Closure(..) | ty::Generator(..) => Ok(smallvec![ty]), @@ -1265,13 +1258,12 @@ pub fn is_trivially_const_drop<'tcx>(ty: Ty<'tcx>) -> bool { | ty::Never | ty::Foreign(_) => true, - ty::Opaque(..) + ty::Alias(..) | ty::Dynamic(..) | ty::Error(_) | ty::Bound(..) | ty::Param(_) | ty::Placeholder(_) - | ty::Projection(_) | ty::Infer(_) => false, // Not trivial because they have components, and instead of looking inside, diff --git a/compiler/rustc_middle/src/ty/visit.rs b/compiler/rustc_middle/src/ty/visit.rs index 4cdfd9e5940..b302572f3ca 100644 --- a/compiler/rustc_middle/src/ty/visit.rs +++ b/compiler/rustc_middle/src/ty/visit.rs @@ -654,7 +654,7 @@ impl<'tcx> TypeVisitor<'tcx> for LateBoundRegionsCollector { // ignore the inputs to a projection, as they may not appear // in the normalized form if self.just_constrained { - if let ty::Projection(..) | ty::Opaque(..) = t.kind() { + if let ty::Alias(..) = t.kind() { return ControlFlow::CONTINUE; } } diff --git a/compiler/rustc_middle/src/ty/walk.rs b/compiler/rustc_middle/src/ty/walk.rs index 4fab5abe909..34dbb6e9f68 100644 --- a/compiler/rustc_middle/src/ty/walk.rs +++ b/compiler/rustc_middle/src/ty/walk.rs @@ -165,7 +165,7 @@ fn push_inner<'tcx>(stack: &mut TypeWalkerStack<'tcx>, parent: GenericArg<'tcx>) stack.push(ty.into()); stack.push(lt.into()); } - ty::Projection(data) => { + ty::Alias(_, data) => { stack.extend(data.substs.iter().rev()); } ty::Dynamic(obj, lt, _) => { @@ -188,7 +188,6 @@ fn push_inner<'tcx>(stack: &mut TypeWalkerStack<'tcx>, parent: GenericArg<'tcx>) })); } ty::Adt(_, substs) - | ty::Opaque(_, substs) | ty::Closure(_, substs) | ty::Generator(_, substs, _) | ty::FnDef(_, substs) => { diff --git a/compiler/rustc_mir_build/src/build/block.rs b/compiler/rustc_mir_build/src/build/block.rs index 49d7136a2f1..2643d33cee0 100644 --- a/compiler/rustc_mir_build/src/build/block.rs +++ b/compiler/rustc_mir_build/src/build/block.rs @@ -231,7 +231,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { remainder_span, pattern, None, - Some((None, initializer_span)), + Some((Some(&destination), initializer_span)), ); this.visit_primary_bindings( pattern, @@ -373,7 +373,9 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // the case of `!`, no return value is required, as the block will never return. // Opaque types of empty bodies also need this unit assignment, in order to infer that their // type is actually unit. Otherwise there will be no defining use found in the MIR. - if destination_ty.is_unit() || matches!(destination_ty.kind(), ty::Opaque(..)) { + if destination_ty.is_unit() + || matches!(destination_ty.kind(), ty::Alias(ty::Opaque, ..)) + { // We only want to assign an implicit `()` as the return value of the block if the // block does not diverge. (Otherwise, we may try to assign a unit to a `!`-type.) this.cfg.push_assign_unit(block, source_info, destination, this.tcx); diff --git a/compiler/rustc_mir_build/src/build/custom/mod.rs b/compiler/rustc_mir_build/src/build/custom/mod.rs index eb021f47757..34fefb99e09 100644 --- a/compiler/rustc_mir_build/src/build/custom/mod.rs +++ b/compiler/rustc_mir_build/src/build/custom/mod.rs @@ -20,11 +20,12 @@ use rustc_ast::Attribute; use rustc_data_structures::fx::FxHashMap; use rustc_hir::def_id::DefId; +use rustc_hir::HirId; use rustc_index::vec::IndexVec; use rustc_middle::{ mir::*, thir::*, - ty::{Ty, TyCtxt}, + ty::{ParamEnv, Ty, TyCtxt}, }; use rustc_span::Span; @@ -33,6 +34,7 @@ mod parse; pub(super) fn build_custom_mir<'tcx>( tcx: TyCtxt<'tcx>, did: DefId, + hir_id: HirId, thir: &Thir<'tcx>, expr: ExprId, params: &IndexVec<ParamId, Param<'tcx>>, @@ -67,12 +69,16 @@ pub(super) fn build_custom_mir<'tcx>( parent_scope: None, inlined: None, inlined_parent_scope: None, - local_data: ClearCrossCrate::Clear, + local_data: ClearCrossCrate::Set(SourceScopeLocalData { + lint_root: hir_id, + safety: Safety::Safe, + }), }); body.injection_phase = Some(parse_attribute(attr)); let mut pctxt = ParseCtxt { tcx, + param_env: tcx.param_env(did), thir, source_scope: OUTERMOST_SOURCE_SCOPE, body: &mut body, @@ -127,6 +133,7 @@ fn parse_attribute(attr: &Attribute) -> MirPhase { struct ParseCtxt<'tcx, 'body> { tcx: TyCtxt<'tcx>, + param_env: ParamEnv<'tcx>, thir: &'body Thir<'tcx>, source_scope: SourceScope, diff --git a/compiler/rustc_mir_build/src/build/custom/parse/instruction.rs b/compiler/rustc_mir_build/src/build/custom/parse/instruction.rs index 03206af33bf..ecc3e4de8d1 100644 --- a/compiler/rustc_mir_build/src/build/custom/parse/instruction.rs +++ b/compiler/rustc_mir_build/src/build/custom/parse/instruction.rs @@ -1,5 +1,11 @@ use rustc_middle::mir::interpret::{ConstValue, Scalar}; +use rustc_middle::mir::tcx::PlaceTy; use rustc_middle::{mir::*, thir::*, ty}; +use rustc_span::Span; +use rustc_target::abi::VariantIdx; + +use crate::build::custom::ParseError; +use crate::build::expr::as_constant::as_constant_inner; use super::{parse_by_kind, PResult, ParseCtxt}; @@ -12,6 +18,14 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { @call("mir_retag_raw", args) => { Ok(StatementKind::Retag(RetagKind::Raw, Box::new(self.parse_place(args[0])?))) }, + @call("mir_set_discriminant", args) => { + let place = self.parse_place(args[0])?; + let var = self.parse_integer_literal(args[1])? as u32; + Ok(StatementKind::SetDiscriminant { + place: Box::new(place), + variant_index: VariantIdx::from_u32(var), + }) + }, ExprKind::Assign { lhs, rhs } => { let lhs = self.parse_place(*lhs)?; let rhs = self.parse_rvalue(*rhs)?; @@ -21,18 +35,109 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { } pub fn parse_terminator(&self, expr_id: ExprId) -> PResult<TerminatorKind<'tcx>> { - parse_by_kind!(self, expr_id, _, "terminator", + parse_by_kind!(self, expr_id, expr, "terminator", @call("mir_return", _args) => { Ok(TerminatorKind::Return) }, @call("mir_goto", args) => { Ok(TerminatorKind::Goto { target: self.parse_block(args[0])? } ) }, + @call("mir_unreachable", _args) => { + Ok(TerminatorKind::Unreachable) + }, + @call("mir_drop", args) => { + Ok(TerminatorKind::Drop { + place: self.parse_place(args[0])?, + target: self.parse_block(args[1])?, + unwind: None, + }) + }, + @call("mir_drop_and_replace", args) => { + Ok(TerminatorKind::DropAndReplace { + place: self.parse_place(args[0])?, + value: self.parse_operand(args[1])?, + target: self.parse_block(args[2])?, + unwind: None, + }) + }, + @call("mir_call", args) => { + let destination = self.parse_place(args[0])?; + let target = self.parse_block(args[1])?; + self.parse_call(args[2], destination, target) + }, + ExprKind::Match { scrutinee, arms } => { + let discr = self.parse_operand(*scrutinee)?; + self.parse_match(arms, expr.span).map(|t| TerminatorKind::SwitchInt { discr, targets: t }) + }, + ) + } + + fn parse_match(&self, arms: &[ArmId], span: Span) -> PResult<SwitchTargets> { + let Some((otherwise, rest)) = arms.split_last() else { + return Err(ParseError { + span, + item_description: format!("no arms"), + expected: "at least one arm".to_string(), + }) + }; + + let otherwise = &self.thir[*otherwise]; + let PatKind::Wild = otherwise.pattern.kind else { + return Err(ParseError { + span: otherwise.span, + item_description: format!("{:?}", otherwise.pattern.kind), + expected: "wildcard pattern".to_string(), + }) + }; + let otherwise = self.parse_block(otherwise.body)?; + + let mut values = Vec::new(); + let mut targets = Vec::new(); + for arm in rest { + let arm = &self.thir[*arm]; + let PatKind::Constant { value } = arm.pattern.kind else { + return Err(ParseError { + span: arm.pattern.span, + item_description: format!("{:?}", arm.pattern.kind), + expected: "constant pattern".to_string(), + }) + }; + values.push(value.eval_bits(self.tcx, self.param_env, arm.pattern.ty)); + targets.push(self.parse_block(arm.body)?); + } + + Ok(SwitchTargets::new(values.into_iter().zip(targets), otherwise)) + } + + fn parse_call( + &self, + expr_id: ExprId, + destination: Place<'tcx>, + target: BasicBlock, + ) -> PResult<TerminatorKind<'tcx>> { + parse_by_kind!(self, expr_id, _, "function call", + ExprKind::Call { fun, args, from_hir_call, fn_span, .. } => { + let fun = self.parse_operand(*fun)?; + let args = args + .iter() + .map(|arg| self.parse_operand(*arg)) + .collect::<PResult<Vec<_>>>()?; + Ok(TerminatorKind::Call { + func: fun, + args, + destination, + target: Some(target), + cleanup: None, + from_hir_call: *from_hir_call, + fn_span: *fn_span, + }) + }, ) } fn parse_rvalue(&self, expr_id: ExprId) -> PResult<Rvalue<'tcx>> { parse_by_kind!(self, expr_id, _, "rvalue", + @call("mir_discriminant", args) => self.parse_place(args[0]).map(Rvalue::Discriminant), ExprKind::Borrow { borrow_kind, arg } => Ok( Rvalue::Ref(self.tcx.lifetimes.re_erased, *borrow_kind, self.parse_place(*arg)?) ), @@ -55,7 +160,7 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { | ExprKind::ConstParam { .. } | ExprKind::ConstBlock { .. } => { Ok(Operand::Constant(Box::new( - crate::build::expr::as_constant::as_constant_inner(expr, |_| None, self.tcx) + as_constant_inner(expr, |_| None, self.tcx) ))) }, _ => self.parse_place(expr_id).map(Operand::Copy), @@ -63,12 +168,42 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { } fn parse_place(&self, expr_id: ExprId) -> PResult<Place<'tcx>> { - parse_by_kind!(self, expr_id, _, "place", - ExprKind::Deref { arg } => Ok( - self.parse_place(*arg)?.project_deeper(&[PlaceElem::Deref], self.tcx) - ), - _ => self.parse_local(expr_id).map(Place::from), - ) + self.parse_place_inner(expr_id).map(|(x, _)| x) + } + + fn parse_place_inner(&self, expr_id: ExprId) -> PResult<(Place<'tcx>, PlaceTy<'tcx>)> { + let (parent, proj) = parse_by_kind!(self, expr_id, expr, "place", + @call("mir_field", args) => { + let (parent, ty) = self.parse_place_inner(args[0])?; + let field = Field::from_u32(self.parse_integer_literal(args[1])? as u32); + let field_ty = ty.field_ty(self.tcx, field); + let proj = PlaceElem::Field(field, field_ty); + let place = parent.project_deeper(&[proj], self.tcx); + return Ok((place, PlaceTy::from_ty(field_ty))); + }, + @call("mir_variant", args) => { + (args[0], PlaceElem::Downcast( + None, + VariantIdx::from_u32(self.parse_integer_literal(args[1])? as u32) + )) + }, + ExprKind::Deref { arg } => { + parse_by_kind!(self, *arg, _, "does not matter", + @call("mir_make_place", args) => return self.parse_place_inner(args[0]), + _ => (*arg, PlaceElem::Deref), + ) + }, + ExprKind::Index { lhs, index } => (*lhs, PlaceElem::Index(self.parse_local(*index)?)), + ExprKind::Field { lhs, name: field, .. } => (*lhs, PlaceElem::Field(*field, expr.ty)), + _ => { + let place = self.parse_local(expr_id).map(Place::from)?; + return Ok((place, PlaceTy::from_ty(expr.ty))) + }, + ); + let (parent, ty) = self.parse_place_inner(parent)?; + let place = parent.project_deeper(&[proj], self.tcx); + let ty = ty.projection_ty(self.tcx, proj); + Ok((place, ty)) } fn parse_local(&self, expr_id: ExprId) -> PResult<Local> { @@ -102,4 +237,16 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { }, ) } + + fn parse_integer_literal(&self, expr_id: ExprId) -> PResult<u128> { + parse_by_kind!(self, expr_id, expr, "constant", + ExprKind::Literal { .. } + | ExprKind::NamedConst { .. } + | ExprKind::NonHirLiteral { .. } + | ExprKind::ConstBlock { .. } => Ok({ + let value = as_constant_inner(expr, |_| None, self.tcx); + value.literal.eval_bits(self.tcx, self.param_env, value.ty()) + }), + ) + } } diff --git a/compiler/rustc_mir_build/src/build/expr/as_place.rs b/compiler/rustc_mir_build/src/build/expr/as_place.rs index edd52728626..8a35478dd8b 100644 --- a/compiler/rustc_mir_build/src/build/expr/as_place.rs +++ b/compiler/rustc_mir_build/src/build/expr/as_place.rs @@ -7,6 +7,7 @@ use rustc_hir::def_id::LocalDefId; use rustc_middle::hir::place::Projection as HirProjection; use rustc_middle::hir::place::ProjectionKind as HirProjectionKind; use rustc_middle::middle::region; +use rustc_middle::mir::tcx::PlaceTy; use rustc_middle::mir::AssertKind::BoundsCheck; use rustc_middle::mir::*; use rustc_middle::thir::*; @@ -18,23 +19,31 @@ use rustc_target::abi::VariantIdx; use rustc_index::vec::Idx; use std::assert_matches::assert_matches; +use std::convert::From; use std::iter; -/// The "outermost" place that holds this value. -#[derive(Copy, Clone, Debug, PartialEq)] -pub(crate) enum PlaceBase { +/// `PlaceBuilder` is used to create places during MIR construction. It allows you to "build up" a +/// place by pushing more and more projections onto the end, and then convert the final set into a +/// place using the `into_place` method. +/// +/// This is used internally when building a place for an expression like `a.b.c`. The fields `b` +/// and `c` can be progressively pushed onto the place builder that is created when converting `a`. +#[derive(Clone, Debug, PartialEq)] +pub(in crate::build) enum PlaceBuilder<'tcx> { /// Denotes the start of a `Place`. - Local(Local), + /// + /// We use `PlaceElem` since this has all `Field` types available. + Local { local: Local, projection: Vec<PlaceElem<'tcx>> }, /// When building place for an expression within a closure, the place might start off a /// captured path. When `capture_disjoint_fields` is enabled, we might not know the capture /// index (within the desugared closure) of the captured path until most of the projections - /// are applied. We use `PlaceBase::Upvar` to keep track of the root variable off of which the + /// are applied. We use `PlaceBuilder::Upvar` to keep track of the root variable off of which the /// captured path starts, the closure the capture belongs to and the trait the closure /// implements. /// - /// Once we have figured out the capture index, we can convert the place builder to start from - /// `PlaceBase::Local`. + /// Once we have figured out the capture index, we can convert the place builder to + /// `PlaceBuilder::Local`. /// /// Consider the following example /// ```rust @@ -55,24 +64,16 @@ pub(crate) enum PlaceBase { /// /// When `capture_disjoint_fields` is enabled, `t.0.0.0` is captured and we won't be able to /// figure out that it is captured until all the `Field` projections are applied. - Upvar { - /// HirId of the upvar - var_hir_id: LocalVarId, - /// DefId of the closure - closure_def_id: LocalDefId, - }, + /// + /// Note: in contrast to `PlaceBuilder::Local` we have not yet determined all `Field` types + /// and will only do so once converting to `PlaceBuilder::Local`. + Upvar { upvar: Upvar, projection: Vec<UpvarProjectionElem<'tcx>> }, } -/// `PlaceBuilder` is used to create places during MIR construction. It allows you to "build up" a -/// place by pushing more and more projections onto the end, and then convert the final set into a -/// place using the `to_place` method. -/// -/// This is used internally when building a place for an expression like `a.b.c`. The fields `b` -/// and `c` can be progressively pushed onto the place builder that is created when converting `a`. -#[derive(Clone, Debug, PartialEq)] -pub(in crate::build) struct PlaceBuilder<'tcx> { - base: PlaceBase, - projection: Vec<PlaceElem<'tcx>>, +#[derive(Copy, Clone, Debug, PartialEq)] +pub(crate) struct Upvar { + var_hir_id: LocalVarId, + closure_def_id: LocalDefId, } /// Given a list of MIR projections, convert them to list of HIR ProjectionKind. @@ -82,7 +83,7 @@ pub(in crate::build) struct PlaceBuilder<'tcx> { /// part of a path that is captured by a closure. We stop applying projections once we see the first /// projection that isn't captured by a closure. fn convert_to_hir_projections_and_truncate_for_capture<'tcx>( - mir_projections: &[PlaceElem<'tcx>], + mir_projections: &[UpvarProjectionElem<'tcx>], ) -> Vec<HirProjectionKind> { let mut hir_projections = Vec::new(); let mut variant = None; @@ -156,7 +157,7 @@ fn is_ancestor_or_same_capture( fn find_capture_matching_projections<'a, 'tcx>( upvars: &'a CaptureMap<'tcx>, var_hir_id: LocalVarId, - projections: &[PlaceElem<'tcx>], + projections: &[UpvarProjectionElem<'tcx>], ) -> Option<(usize, &'a Capture<'tcx>)> { let hir_projections = convert_to_hir_projections_and_truncate_for_capture(projections); @@ -174,7 +175,7 @@ fn to_upvars_resolved_place_builder<'tcx>( cx: &Builder<'_, 'tcx>, var_hir_id: LocalVarId, closure_def_id: LocalDefId, - projection: &[PlaceElem<'tcx>], + projection: &[UpvarProjectionElem<'tcx>], ) -> Option<PlaceBuilder<'tcx>> { let Some((capture_index, capture)) = find_capture_matching_projections( @@ -196,23 +197,32 @@ fn to_upvars_resolved_place_builder<'tcx>( var_hir_id, projection, ); } + return None; }; // Access the capture by accessing the field within the Closure struct. let capture_info = &cx.upvars[capture_index]; - let mut upvar_resolved_place_builder = PlaceBuilder::from(capture_info.use_place); + let Place { local: upvar_resolved_local, projection: local_projection } = + capture_info.use_place; // We used some of the projections to build the capture itself, // now we apply the remaining to the upvar resolved place. - trace!(?capture.captured_place, ?projection); - let remaining_projections = strip_prefix( + let upvar_projection = strip_prefix( capture.captured_place.place.base_ty, projection, &capture.captured_place.place.projections, ); - upvar_resolved_place_builder.projection.extend(remaining_projections); + + let upvar_resolved_place_builder = PlaceBuilder::construct_local_place_builder( + cx, + upvar_resolved_local, + local_projection.as_slice(), + upvar_projection, + ); + + assert!(matches!(upvar_resolved_place_builder, PlaceBuilder::Local { .. })); Some(upvar_resolved_place_builder) } @@ -225,15 +235,17 @@ fn to_upvars_resolved_place_builder<'tcx>( /// projection kinds are unsupported. fn strip_prefix<'a, 'tcx>( mut base_ty: Ty<'tcx>, - projections: &'a [PlaceElem<'tcx>], + projections: &'a [UpvarProjectionElem<'tcx>], prefix_projections: &[HirProjection<'tcx>], -) -> impl Iterator<Item = PlaceElem<'tcx>> + 'a { +) -> impl Iterator<Item = UpvarProjectionElem<'tcx>> + 'a { let mut iter = projections .iter() .copied() // Filter out opaque casts, they are unnecessary in the prefix. .filter(|elem| !matches!(elem, ProjectionElem::OpaqueCast(..))); for projection in prefix_projections { + debug!(?projection, ?projection.ty); + match projection.kind { HirProjectionKind::Deref => { assert_matches!(iter.next(), Some(ProjectionElem::Deref)); @@ -248,8 +260,10 @@ fn strip_prefix<'a, 'tcx>( bug!("unexpected projection kind: {:?}", projection); } } + base_ty = projection.ty; } + iter } @@ -262,9 +276,9 @@ impl<'tcx> PlaceBuilder<'tcx> { pub(in crate::build) fn try_to_place(&self, cx: &Builder<'_, 'tcx>) -> Option<Place<'tcx>> { let resolved = self.resolve_upvar(cx); let builder = resolved.as_ref().unwrap_or(self); - let PlaceBase::Local(local) = builder.base else { return None }; - let projection = cx.tcx.intern_place_elems(&builder.projection); - Some(Place { local, projection }) + let PlaceBuilder::Local{local, ref projection} = builder else { return None }; + let projection = cx.tcx.intern_place_elems(projection); + Some(Place { local: *local, projection }) } /// Attempts to resolve the `PlaceBuilder`. @@ -281,22 +295,31 @@ impl<'tcx> PlaceBuilder<'tcx> { &self, cx: &Builder<'_, 'tcx>, ) -> Option<PlaceBuilder<'tcx>> { - let PlaceBase::Upvar { var_hir_id, closure_def_id } = self.base else { + let PlaceBuilder::Upvar{ upvar: Upvar {var_hir_id, closure_def_id }, projection} = self else { return None; }; - to_upvars_resolved_place_builder(cx, var_hir_id, closure_def_id, &self.projection) - } - pub(crate) fn base(&self) -> PlaceBase { - self.base + to_upvars_resolved_place_builder(cx, *var_hir_id, *closure_def_id, &projection) } - pub(crate) fn projection(&self) -> &[PlaceElem<'tcx>] { - &self.projection - } + #[instrument(skip(cx), level = "debug")] + pub(crate) fn field(self, cx: &Builder<'_, 'tcx>, f: Field) -> Self { + match self.clone() { + PlaceBuilder::Local { local, projection } => { + let base_place = PlaceBuilder::Local { local, projection }; + let PlaceTy { ty, variant_index } = + base_place.to_place(cx).ty(&cx.local_decls, cx.tcx); + let base_ty = cx.tcx.normalize_erasing_regions(cx.param_env, ty); + + let field_ty = PlaceBuilder::compute_field_ty(cx, f, base_ty, variant_index); - pub(crate) fn field(self, f: Field, ty: Ty<'tcx>) -> Self { - self.project(PlaceElem::Field(f, ty)) + self.project(ProjectionElem::Field(f, field_ty)) + } + PlaceBuilder::Upvar { upvar, mut projection } => { + projection.push(ProjectionElem::Field(f, ())); + PlaceBuilder::Upvar { upvar, projection } + } + } } pub(crate) fn deref(self) -> Self { @@ -311,35 +334,236 @@ impl<'tcx> PlaceBuilder<'tcx> { self.project(PlaceElem::Index(index)) } - pub(crate) fn project(mut self, elem: PlaceElem<'tcx>) -> Self { - self.projection.push(elem); - self + #[instrument(level = "debug")] + pub(crate) fn project(self, elem: PlaceElem<'tcx>) -> Self { + let result = match self { + PlaceBuilder::Local { local, mut projection } => { + projection.push(elem); + PlaceBuilder::Local { local, projection } + } + PlaceBuilder::Upvar { upvar, mut projection } => { + projection.push(elem.into()); + PlaceBuilder::Upvar { upvar, projection } + } + }; + + debug!(?result); + result } /// Same as `.clone().project(..)` but more efficient pub(crate) fn clone_project(&self, elem: PlaceElem<'tcx>) -> Self { - Self { - base: self.base, - projection: Vec::from_iter(self.projection.iter().copied().chain([elem])), + match self { + PlaceBuilder::Local { local, projection } => PlaceBuilder::Local { + local: *local, + projection: Vec::from_iter(projection.iter().copied().chain([elem.into()])), + }, + PlaceBuilder::Upvar { upvar, projection } => PlaceBuilder::Upvar { + upvar: *upvar, + projection: Vec::from_iter(projection.iter().copied().chain([elem.into()])), + }, } } + + /// Similar to `Place::ty` but needed during mir building. + /// + /// Applies the projections in the `PlaceBuilder` to the base + /// type. + /// + /// Fallible as the root of this place may be an upvar for + /// which no base type can be determined. + #[instrument(skip(cx), level = "debug")] + fn compute_field_ty( + cx: &Builder<'_, 'tcx>, + field: Field, + base_ty: Ty<'tcx>, + variant_index: Option<VariantIdx>, + ) -> Ty<'tcx> { + let field_idx = field.as_usize(); + let field_ty = match base_ty.kind() { + ty::Adt(adt_def, substs) if adt_def.is_enum() => { + let variant_idx = variant_index.unwrap(); + adt_def.variant(variant_idx).fields[field_idx].ty(cx.tcx, substs) + } + ty::Adt(adt_def, substs) => adt_def + .all_fields() + .nth(field_idx) + .unwrap_or_else(|| { + bug!( + "expected to take field with idx {:?} of fields of {:?}", + field_idx, + adt_def + ) + }) + .ty(cx.tcx, substs), + ty::Tuple(elems) => elems.iter().nth(field_idx).unwrap_or_else(|| { + bug!("expected to take field with idx {:?} of {:?}", field_idx, elems) + }), + ty::Closure(_, substs) => { + let substs = substs.as_closure(); + let Some(f_ty) = substs.upvar_tys().nth(field_idx) else { + bug!("expected to take field with idx {:?} of {:?}", field_idx, substs.upvar_tys().collect::<Vec<_>>()); + }; + + f_ty + } + &ty::Generator(def_id, substs, _) => { + if let Some(var) = variant_index { + let gen_body = cx.tcx.optimized_mir(def_id); + let Some(layout) = gen_body.generator_layout() else { + bug!("No generator layout for {:?}", base_ty); + }; + + let Some(&local) = layout.variant_fields[var].get(field) else { + bug!("expected to take field {:?} of {:?}", field, layout.variant_fields[var]); + }; + + let Some(&f_ty) = layout.field_tys.get(local) else { + bug!("expected to get element for {:?} in {:?}", local, layout.field_tys); + }; + + f_ty + } else { + let Some(f_ty) = substs.as_generator().prefix_tys().nth(field.index()) else { + bug!( + "expected to take index {:?} in {:?}", + field.index(), + substs.as_generator().prefix_tys().collect::<Vec<_>>() + ); + }; + + f_ty + } + } + _ => bug!("couldn't create field type, unexpected base type: {:?}", base_ty), + }; + + cx.tcx.normalize_erasing_regions(cx.param_env, field_ty) + } + + /// Creates a `PlaceBuilder::Local` from a `PlaceBuilder::Upvar` whose upvars + /// are resolved. This function takes two kinds of projections: `local_projection` + /// contains the projections of the captured upvar and `upvar_projection` the + /// projections that are applied to the captured upvar. The main purpose of this + /// function is to figure out the `Ty`s of the field projections in `upvar_projection`. + #[instrument(skip(cx, local, upvar_projection))] + fn construct_local_place_builder( + cx: &Builder<'_, 'tcx>, + local: Local, + local_projection: &[PlaceElem<'tcx>], + upvar_projection: impl Iterator<Item = UpvarProjectionElem<'tcx>>, + ) -> Self { + // We maintain a `Ty` to which we apply a projection in each iteration over `upvar_projection`. + // This `ancestor_ty` let's us infer the field type whenever we encounter a + // `ProjectionElem::Field`. + let (mut ancestor_ty, mut opt_variant_idx) = + local_projections_to_ty(cx, local, local_projection); + + // We add all projection elements we encounter to this `Vec`. + let mut local_projection = local_projection.to_vec(); + + for (i, proj) in upvar_projection.enumerate() { + debug!("i: {:?}, proj: {:?}, local_projection: {:?}", i, proj, local_projection); + match proj { + ProjectionElem::Field(field, _) => { + let field_ty = + PlaceBuilder::compute_field_ty(cx, field, ancestor_ty, opt_variant_idx); + debug!(?field_ty); + + local_projection.push(ProjectionElem::Field(field, field_ty)); + ancestor_ty = field_ty; + opt_variant_idx = None; + } + _ => { + let proj = upvar_proj_to_place_elem_no_field_proj(proj); + (ancestor_ty, opt_variant_idx) = project_ty(cx.tcx, ancestor_ty, proj); + local_projection.push(proj); + } + } + } + + PlaceBuilder::Local { local, projection: local_projection } + } } impl<'tcx> From<Local> for PlaceBuilder<'tcx> { fn from(local: Local) -> Self { - Self { base: PlaceBase::Local(local), projection: Vec::new() } + Self::Local { local, projection: Vec::new() } } } -impl<'tcx> From<PlaceBase> for PlaceBuilder<'tcx> { - fn from(base: PlaceBase) -> Self { - Self { base, projection: Vec::new() } +impl<'tcx> From<Place<'tcx>> for PlaceBuilder<'tcx> { + fn from(p: Place<'tcx>) -> Self { + Self::Local { local: p.local, projection: p.projection.to_vec() } } } -impl<'tcx> From<Place<'tcx>> for PlaceBuilder<'tcx> { - fn from(p: Place<'tcx>) -> Self { - Self { base: PlaceBase::Local(p.local), projection: p.projection.to_vec() } +fn project_ty<'tcx>( + tcx: TyCtxt<'tcx>, + ty: Ty<'tcx>, + elem: PlaceElem<'tcx>, +) -> (Ty<'tcx>, Option<VariantIdx>) { + match elem { + ProjectionElem::Deref => { + let updated_ty = ty + .builtin_deref(true) + .unwrap_or_else(|| bug!("deref projection of non-dereferenceable ty {:?}", ty)) + .ty; + + (updated_ty, None) + } + ProjectionElem::Index(_) | ProjectionElem::ConstantIndex { .. } => { + (ty.builtin_index().unwrap(), None) + } + ProjectionElem::Subslice { from, to, from_end } => { + let ty = match ty.kind() { + ty::Slice(..) => ty, + ty::Array(inner, _) if !from_end => tcx.mk_array(*inner, (to - from) as u64), + ty::Array(inner, size) if from_end => { + let size = size.eval_usize(tcx, ty::ParamEnv::empty()); + let len = size - (from as u64) - (to as u64); + tcx.mk_array(*inner, len) + } + _ => bug!("cannot subslice non-array type: `{:?}`", ty), + }; + + (ty, None) + } + ProjectionElem::Downcast(_, variant_idx) => (ty, Some(variant_idx)), + ProjectionElem::Field(_, ty) => (ty, None), + ProjectionElem::OpaqueCast(..) => bug!("didn't expect OpaqueCast"), + } +} + +fn local_projections_to_ty<'a, 'tcx>( + cx: &'a Builder<'a, 'tcx>, + local: Local, + projection: &'a [PlaceElem<'tcx>], +) -> (Ty<'tcx>, Option<VariantIdx>) { + let local_ty = cx.local_decls.local_decls()[local].ty; + projection.iter().fold((local_ty, None), |ty_variant_idx, elem| { + let ty = ty_variant_idx.0; + project_ty(cx.tcx, ty, *elem) + }) +} + +// Converts an `UpvarProjectionElem` to `PlaceElem`, ICE'ing when being passed a +// field projection. +fn upvar_proj_to_place_elem_no_field_proj<'tcx>( + upvar_proj: UpvarProjectionElem<'tcx>, +) -> PlaceElem<'tcx> { + match upvar_proj { + ProjectionElem::Deref => ProjectionElem::Deref, + ProjectionElem::Index(i) => ProjectionElem::Index(i), + ProjectionElem::ConstantIndex { offset, min_length, from_end } => { + ProjectionElem::ConstantIndex { offset, min_length, from_end } + } + ProjectionElem::Subslice { from, to, from_end } => { + ProjectionElem::Subslice { from, to, from_end } + } + ProjectionElem::Downcast(ty, variant_idx) => ProjectionElem::Downcast(ty, variant_idx), + ProjectionElem::OpaqueCast(ty) => ProjectionElem::OpaqueCast(ty), + ProjectionElem::Field(..) => bug!("should not be called with `ProjectionElem::Field`"), } } @@ -403,6 +627,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { self.expr_as_place(block, expr, Mutability::Not, None) } + #[instrument(skip(self, fake_borrow_temps), level = "debug")] fn expr_as_place( &mut self, mut block: BasicBlock, @@ -410,8 +635,6 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { mutability: Mutability, fake_borrow_temps: Option<&mut Vec<Local>>, ) -> BlockAnd<PlaceBuilder<'tcx>> { - debug!("expr_as_place(block={:?}, expr={:?}, mutability={:?})", block, expr, mutability); - let this = self; let expr_span = expr.span; let source_info = this.source_info(expr_span); @@ -425,12 +648,13 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let lhs = &this.thir[lhs]; let mut place_builder = unpack!(block = this.expr_as_place(block, lhs, mutability, fake_borrow_temps,)); + debug!(?place_builder); if let ty::Adt(adt_def, _) = lhs.ty.kind() { if adt_def.is_enum() { place_builder = place_builder.downcast(*adt_def, variant_index); } } - block.and(place_builder.field(name, expr.ty)) + block.and(place_builder.field(this, name)) } ExprKind::Deref { arg } => { let place_builder = unpack!( @@ -572,7 +796,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { } /// Lower a captured upvar. Note we might not know the actual capture index, - /// so we create a place starting from `PlaceBase::Upvar`, which will be resolved + /// so we create a place starting from `Upvar`, which will be resolved /// once all projections that allow us to identify a capture have been applied. fn lower_captured_upvar( &mut self, @@ -580,7 +804,10 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { closure_def_id: LocalDefId, var_hir_id: LocalVarId, ) -> BlockAnd<PlaceBuilder<'tcx>> { - block.and(PlaceBuilder::from(PlaceBase::Upvar { var_hir_id, closure_def_id })) + block.and(PlaceBuilder::Upvar { + upvar: Upvar { var_hir_id, closure_def_id }, + projection: vec![], + }) } /// Lower an index expression @@ -671,8 +898,8 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { source_info: SourceInfo, ) { let tcx = self.tcx; - let place_ty = base_place.ty(&self.local_decls, tcx); + if let ty::Slice(_) = place_ty.ty.kind() { // We need to create fake borrows to ensure that the bounds // check that we just did stays valid. Since we can't assign to diff --git a/compiler/rustc_mir_build/src/build/expr/as_rvalue.rs b/compiler/rustc_mir_build/src/build/expr/as_rvalue.rs index 0814793f277..b420e820171 100644 --- a/compiler/rustc_mir_build/src/build/expr/as_rvalue.rs +++ b/compiler/rustc_mir_build/src/build/expr/as_rvalue.rs @@ -4,9 +4,8 @@ use rustc_index::vec::Idx; use rustc_middle::ty::util::IntTypeExt; use rustc_target::abi::{Abi, Primitive}; -use crate::build::expr::as_place::PlaceBase; use crate::build::expr::category::{Category, RvalueFunc}; -use crate::build::{BlockAnd, BlockAndExtension, Builder, NeedsTemporary}; +use crate::build::{BlockAnd, BlockAndExtension, Builder, NeedsTemporary, PlaceBuilder}; use rustc_hir::lang_items::LangItem; use rustc_middle::middle::region; use rustc_middle::mir::AssertKind; @@ -142,7 +141,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let exchange_malloc = Operand::function_handle( tcx, tcx.require_lang_item(LangItem::ExchangeMalloc, Some(expr_span)), - ty::List::empty(), + [], expr_span, ); let storage = this.temp(tcx.mk_mut_ptr(tcx.types.u8), expr_span); @@ -651,15 +650,15 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let arg_place_builder = unpack!(block = this.as_place_builder(block, arg)); - let mutability = match arg_place_builder.base() { + let mutability = match arg_place_builder { // We are capturing a path that starts off a local variable in the parent. // The mutability of the current capture is same as the mutability // of the local declaration in the parent. - PlaceBase::Local(local) => this.local_decls[local].mutability, + PlaceBuilder::Local { local, .. } => this.local_decls[local].mutability, // Parent is a closure and we are capturing a path that is captured // by the parent itself. The mutability of the current capture // is same as that of the capture in the parent closure. - PlaceBase::Upvar { .. } => { + PlaceBuilder::Upvar { .. } => { let enclosing_upvars_resolved = arg_place_builder.to_place(this); match enclosing_upvars_resolved.as_ref() { diff --git a/compiler/rustc_mir_build/src/build/expr/into.rs b/compiler/rustc_mir_build/src/build/expr/into.rs index 38b1fa91d0a..895051d7590 100644 --- a/compiler/rustc_mir_build/src/build/expr/into.rs +++ b/compiler/rustc_mir_build/src/build/expr/into.rs @@ -355,11 +355,13 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // base-supplied field, generate an operand that // reads it from the base. iter::zip(field_names, &**field_types) - .map(|(n, ty)| match fields_map.get(&n) { + .map(|(n, _ty)| match fields_map.get(&n) { Some(v) => v.clone(), None => { - let place = place_builder.clone_project(PlaceElem::Field(n, *ty)); - this.consume_by_copy_or_move(place.to_place(this)) + let place_builder = place_builder.clone(); + this.consume_by_copy_or_move( + place_builder.field(this, n).to_place(this), + ) } }) .collect() diff --git a/compiler/rustc_mir_build/src/build/expr/stmt.rs b/compiler/rustc_mir_build/src/build/expr/stmt.rs index 00dbcaeb0c9..e9f327978aa 100644 --- a/compiler/rustc_mir_build/src/build/expr/stmt.rs +++ b/compiler/rustc_mir_build/src/build/expr/stmt.rs @@ -6,10 +6,8 @@ use rustc_middle::thir::*; impl<'a, 'tcx> Builder<'a, 'tcx> { /// Builds a block of MIR statements to evaluate the THIR `expr`. - /// If the original expression was an AST statement, - /// (e.g., `some().code(&here());`) then `opt_stmt_span` is the - /// span of that statement (including its semicolon, if any). - /// The scope is used if a statement temporary must be dropped. + /// + /// The `statement_scope` is used if a statement temporary must be dropped. pub(crate) fn stmt_expr( &mut self, mut block: BasicBlock, diff --git a/compiler/rustc_mir_build/src/build/matches/simplify.rs b/compiler/rustc_mir_build/src/build/matches/simplify.rs index f6b1955fdec..36aa7693e82 100644 --- a/compiler/rustc_mir_build/src/build/matches/simplify.rs +++ b/compiler/rustc_mir_build/src/build/matches/simplify.rs @@ -272,9 +272,9 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { || !adt_def.is_variant_list_non_exhaustive()); if irrefutable { let place_builder = match_pair.place.downcast(adt_def, variant_index); - candidate - .match_pairs - .extend(self.field_match_pairs(place_builder, subpatterns)); + let field_match_pairs = + self.field_match_pairs(place_builder.clone(), subpatterns); + candidate.match_pairs.extend(field_match_pairs); Ok(()) } else { Err(match_pair) diff --git a/compiler/rustc_mir_build/src/build/matches/test.rs b/compiler/rustc_mir_build/src/build/matches/test.rs index 6d5a98342d2..65a027111d7 100644 --- a/compiler/rustc_mir_build/src/build/matches/test.rs +++ b/compiler/rustc_mir_build/src/build/matches/test.rs @@ -758,8 +758,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let downcast_place = match_pair.place.downcast(adt_def, variant_index); // `(x as Variant)` let consequent_match_pairs = subpatterns.iter().map(|subpattern| { // e.g., `(x as Variant).0` - let place = downcast_place - .clone_project(PlaceElem::Field(subpattern.field, subpattern.pattern.ty)); + let place = downcast_place.clone().field(self, subpattern.field); // e.g., `(x as Variant).0 @ P1` MatchPair::new(place, &subpattern.pattern, self) }); @@ -838,8 +837,6 @@ fn trait_method<'tcx>( method_name: Symbol, substs: impl IntoIterator<Item = impl Into<GenericArg<'tcx>>>, ) -> ConstantKind<'tcx> { - let substs = tcx.mk_substs(substs.into_iter().map(Into::into)); - // The unhygienic comparison here is acceptable because this is only // used on known traits. let item = tcx diff --git a/compiler/rustc_mir_build/src/build/matches/util.rs b/compiler/rustc_mir_build/src/build/matches/util.rs index cbd494862a0..d95dbfca78e 100644 --- a/compiler/rustc_mir_build/src/build/matches/util.rs +++ b/compiler/rustc_mir_build/src/build/matches/util.rs @@ -1,4 +1,3 @@ -use crate::build::expr::as_place::PlaceBase; use crate::build::expr::as_place::PlaceBuilder; use crate::build::matches::MatchPair; use crate::build::Builder; @@ -17,8 +16,8 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { subpatterns .iter() .map(|fieldpat| { - let place = - place.clone_project(PlaceElem::Field(fieldpat.field, fieldpat.pattern.ty)); + let place = place.clone().field(self, fieldpat.field); + MatchPair::new(place, &fieldpat.pattern, self) }) .collect() @@ -107,9 +106,9 @@ impl<'pat, 'tcx> MatchPair<'pat, 'tcx> { // Only add the OpaqueCast projection if the given place is an opaque type and the // expected type from the pattern is not. - let may_need_cast = match place.base() { - PlaceBase::Local(local) => { - let ty = Place::ty_from(local, place.projection(), &cx.local_decls, cx.tcx).ty; + let may_need_cast = match place { + PlaceBuilder::Local { local, ref projection } => { + let ty = Place::ty_from(local, projection, &cx.local_decls, cx.tcx).ty; ty != pattern.ty && ty.has_opaque_types() } _ => true, diff --git a/compiler/rustc_mir_build/src/build/mod.rs b/compiler/rustc_mir_build/src/build/mod.rs index 007f3b55ec8..7af89dd472f 100644 --- a/compiler/rustc_mir_build/src/build/mod.rs +++ b/compiler/rustc_mir_build/src/build/mod.rs @@ -487,6 +487,7 @@ fn construct_fn<'tcx>( return custom::build_custom_mir( tcx, fn_def.did.to_def_id(), + fn_id, thir, expr, arguments, diff --git a/compiler/rustc_mir_build/src/check_unsafety.rs b/compiler/rustc_mir_build/src/check_unsafety.rs index fb1ea9ed300..3bb1f51650a 100644 --- a/compiler/rustc_mir_build/src/check_unsafety.rs +++ b/compiler/rustc_mir_build/src/check_unsafety.rs @@ -132,6 +132,18 @@ impl<'tcx> UnsafetyVisitor<'_, 'tcx> { fn unsafe_op_in_unsafe_fn_allowed(&self) -> bool { self.tcx.lint_level_at_node(UNSAFE_OP_IN_UNSAFE_FN, self.hir_context).0 == Level::Allow } + + /// Handle closures/generators/inline-consts, which is unsafecked with their parent body. + fn visit_inner_body(&mut self, def: ty::WithOptConstParam<LocalDefId>) { + if let Ok((inner_thir, expr)) = self.tcx.thir_body(def) { + let inner_thir = &inner_thir.borrow(); + let hir_context = self.tcx.hir().local_def_id_to_hir_id(def.did); + let mut inner_visitor = UnsafetyVisitor { thir: inner_thir, hir_context, ..*self }; + inner_visitor.visit_expr(&inner_thir[expr]); + // Unsafe blocks can be used in the inner body, make sure to take it into account + self.safety_context = inner_visitor.safety_context; + } + } } // Searches for accesses to layout constrained fields. @@ -408,16 +420,11 @@ impl<'a, 'tcx> Visitor<'a, 'tcx> for UnsafetyVisitor<'a, 'tcx> { } else { ty::WithOptConstParam::unknown(closure_id) }; - let (closure_thir, expr) = self.tcx.thir_body(closure_def).unwrap_or_else(|_| { - (self.tcx.alloc_steal_thir(Thir::new()), ExprId::from_u32(0)) - }); - let closure_thir = &closure_thir.borrow(); - let hir_context = self.tcx.hir().local_def_id_to_hir_id(closure_id); - let mut closure_visitor = - UnsafetyVisitor { thir: closure_thir, hir_context, ..*self }; - closure_visitor.visit_expr(&closure_thir[expr]); - // Unsafe blocks can be used in closures, make sure to take it into account - self.safety_context = closure_visitor.safety_context; + self.visit_inner_body(closure_def); + } + ExprKind::ConstBlock { did, substs: _ } => { + let def_id = did.expect_local(); + self.visit_inner_body(ty::WithOptConstParam::unknown(def_id)); } ExprKind::Field { lhs, .. } => { let lhs = &self.thir[lhs]; @@ -612,11 +619,8 @@ pub fn check_unsafety<'tcx>(tcx: TyCtxt<'tcx>, def: ty::WithOptConstParam<LocalD return; } - // Closures are handled by their owner, if it has a body - if tcx.is_closure(def.did.to_def_id()) { - let hir = tcx.hir(); - let owner = hir.enclosing_body_owner(hir.local_def_id_to_hir_id(def.did)); - tcx.ensure().thir_check_unsafety(owner); + // Closures and inline consts are handled by their owner, if it has a body + if tcx.is_typeck_child(def.did.to_def_id()) { return; } diff --git a/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs b/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs index a21f6cd39f0..7e1f708b0d6 100644 --- a/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs +++ b/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs @@ -121,7 +121,7 @@ impl<'tcx> ConstToPat<'tcx> { ty::Dynamic(..) => { "trait objects cannot be used in patterns".to_string() } - ty::Opaque(..) => { + ty::Alias(ty::Opaque, ..) => { "opaque types cannot be used in patterns".to_string() } ty::Closure(..) => { diff --git a/compiler/rustc_mir_build/src/thir/pattern/usefulness.rs b/compiler/rustc_mir_build/src/thir/pattern/usefulness.rs index 3e370a05376..8f80cb95e58 100644 --- a/compiler/rustc_mir_build/src/thir/pattern/usefulness.rs +++ b/compiler/rustc_mir_build/src/thir/pattern/usefulness.rs @@ -845,7 +845,7 @@ fn is_useful<'p, 'tcx>( // Opaque types can't get destructured/split, but the patterns can // actually hint at hidden types, so we use the patterns' types instead. - if let ty::Opaque(..) = ty.kind() { + if let ty::Alias(ty::Opaque, ..) = ty.kind() { if let Some(row) = rows.first() { ty = row.head().ty(); } diff --git a/compiler/rustc_mir_dataflow/src/drop_flag_effects.rs b/compiler/rustc_mir_dataflow/src/drop_flag_effects.rs index f102872cd2d..3224e13f7af 100644 --- a/compiler/rustc_mir_dataflow/src/drop_flag_effects.rs +++ b/compiler/rustc_mir_dataflow/src/drop_flag_effects.rs @@ -29,56 +29,6 @@ where None } -/// When enumerating the child fragments of a path, don't recurse into -/// paths (1.) past arrays, slices, and pointers, nor (2.) into a type -/// that implements `Drop`. -/// -/// Places behind references or arrays are not tracked by elaboration -/// and are always assumed to be initialized when accessible. As -/// references and indexes can be reseated, trying to track them can -/// only lead to trouble. -/// -/// Places behind ADT's with a Drop impl are not tracked by -/// elaboration since they can never have a drop-flag state that -/// differs from that of the parent with the Drop impl. -/// -/// In both cases, the contents can only be accessed if and only if -/// their parents are initialized. This implies for example that there -/// is no need to maintain separate drop flags to track such state. -// -// FIXME: we have to do something for moving slice patterns. -fn place_contents_drop_state_cannot_differ<'tcx>( - tcx: TyCtxt<'tcx>, - body: &Body<'tcx>, - place: mir::Place<'tcx>, -) -> bool { - let ty = place.ty(body, tcx).ty; - match ty.kind() { - ty::Array(..) => { - debug!( - "place_contents_drop_state_cannot_differ place: {:?} ty: {:?} => false", - place, ty - ); - false - } - ty::Slice(..) | ty::Ref(..) | ty::RawPtr(..) => { - debug!( - "place_contents_drop_state_cannot_differ place: {:?} ty: {:?} refd => true", - place, ty - ); - true - } - ty::Adt(def, _) if (def.has_dtor(tcx) && !def.is_box()) || def.is_union() => { - debug!( - "place_contents_drop_state_cannot_differ place: {:?} ty: {:?} Drop => true", - place, ty - ); - true - } - _ => false, - } -} - pub fn on_lookup_result_bits<'tcx, F>( tcx: TyCtxt<'tcx>, body: &Body<'tcx>, @@ -105,13 +55,58 @@ pub fn on_all_children_bits<'tcx, F>( ) where F: FnMut(MovePathIndex), { + #[inline] fn is_terminal_path<'tcx>( tcx: TyCtxt<'tcx>, body: &Body<'tcx>, move_data: &MoveData<'tcx>, path: MovePathIndex, ) -> bool { - place_contents_drop_state_cannot_differ(tcx, body, move_data.move_paths[path].place) + let place = move_data.move_paths[path].place; + + // When enumerating the child fragments of a path, don't recurse into + // paths (1.) past arrays, slices, and pointers, nor (2.) into a type + // that implements `Drop`. + // + // Places behind references or arrays are not tracked by elaboration + // and are always assumed to be initialized when accessible. As + // references and indexes can be reseated, trying to track them can + // only lead to trouble. + // + // Places behind ADT's with a Drop impl are not tracked by + // elaboration since they can never have a drop-flag state that + // differs from that of the parent with the Drop impl. + // + // In both cases, the contents can only be accessed if and only if + // their parents are initialized. This implies for example that there + // is no need to maintain separate drop flags to track such state. + // + // FIXME: we have to do something for moving slice patterns. + let ty = place.ty(body, tcx).ty; + match ty.kind() { + ty::Adt(def, _) if (def.has_dtor(tcx) && !def.is_box()) || def.is_union() => { + debug!( + "place_contents_drop_state_cannot_differ place: {:?} ty: {:?} Drop => true", + place, ty + ); + true + } + ty::Array(..) => { + debug!( + "place_contents_drop_state_cannot_differ place: {:?} ty: {:?} => false", + place, ty + ); + false + } + ty::Slice(..) | ty::Ref(..) | ty::RawPtr(..) => { + debug!( + "place_contents_drop_state_cannot_differ place: {:?} ty: {:?} refd => true", + place, ty + ); + true + } + _ => false, + } } fn on_all_children_bits<'tcx, F>( diff --git a/compiler/rustc_mir_dataflow/src/elaborate_drops.rs b/compiler/rustc_mir_dataflow/src/elaborate_drops.rs index 8610792c0eb..7836ae2e7b7 100644 --- a/compiler/rustc_mir_dataflow/src/elaborate_drops.rs +++ b/compiler/rustc_mir_dataflow/src/elaborate_drops.rs @@ -614,7 +614,6 @@ where let drop_trait = tcx.require_lang_item(LangItem::Drop, None); let drop_fn = tcx.associated_item_def_ids(drop_trait)[0]; let ty = self.place_ty(self.place); - let substs = tcx.mk_substs_trait(ty, []); let ref_ty = tcx.mk_ref(tcx.lifetimes.re_erased, ty::TypeAndMut { ty, mutbl: hir::Mutability::Mut }); @@ -632,7 +631,12 @@ where )], terminator: Some(Terminator { kind: TerminatorKind::Call { - func: Operand::function_handle(tcx, drop_fn, substs, self.source_info.span), + func: Operand::function_handle( + tcx, + drop_fn, + [ty.into()], + self.source_info.span, + ), args: vec![Operand::Move(Place::from(ref_place))], destination: unit_temp, target: Some(succ), diff --git a/compiler/rustc_mir_dataflow/src/impls/storage_liveness.rs b/compiler/rustc_mir_dataflow/src/impls/storage_liveness.rs index 18760b6c6fa..8d379b90a86 100644 --- a/compiler/rustc_mir_dataflow/src/impls/storage_liveness.rs +++ b/compiler/rustc_mir_dataflow/src/impls/storage_liveness.rs @@ -3,20 +3,21 @@ pub use super::*; use crate::{CallReturnPlaces, GenKill, Results, ResultsRefCursor}; use rustc_middle::mir::visit::{NonMutatingUseContext, PlaceContext, Visitor}; use rustc_middle::mir::*; +use std::borrow::Cow; use std::cell::RefCell; #[derive(Clone)] -pub struct MaybeStorageLive { - always_live_locals: BitSet<Local>, +pub struct MaybeStorageLive<'a> { + always_live_locals: Cow<'a, BitSet<Local>>, } -impl MaybeStorageLive { - pub fn new(always_live_locals: BitSet<Local>) -> Self { +impl<'a> MaybeStorageLive<'a> { + pub fn new(always_live_locals: Cow<'a, BitSet<Local>>) -> Self { MaybeStorageLive { always_live_locals } } } -impl<'tcx> crate::AnalysisDomain<'tcx> for MaybeStorageLive { +impl<'tcx, 'a> crate::AnalysisDomain<'tcx> for MaybeStorageLive<'a> { type Domain = BitSet<Local>; const NAME: &'static str = "maybe_storage_live"; @@ -38,7 +39,7 @@ impl<'tcx> crate::AnalysisDomain<'tcx> for MaybeStorageLive { } } -impl<'tcx> crate::GenKillAnalysis<'tcx> for MaybeStorageLive { +impl<'tcx, 'a> crate::GenKillAnalysis<'tcx> for MaybeStorageLive<'a> { type Idx = Local; fn statement_effect( diff --git a/compiler/rustc_mir_dataflow/src/move_paths/abs_domain.rs b/compiler/rustc_mir_dataflow/src/move_paths/abs_domain.rs index 7806e8f45d3..5cfbbb1ac01 100644 --- a/compiler/rustc_mir_dataflow/src/move_paths/abs_domain.rs +++ b/compiler/rustc_mir_dataflow/src/move_paths/abs_domain.rs @@ -18,7 +18,7 @@ use rustc_middle::ty::Ty; pub struct AbstractOperand; #[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)] pub struct AbstractType; -pub type AbstractElem = ProjectionElem<AbstractOperand, AbstractType>; +pub type AbstractElem = ProjectionElem<AbstractOperand, AbstractType, AbstractType>; pub trait Lift { type Abstract; diff --git a/compiler/rustc_mir_dataflow/src/value_analysis.rs b/compiler/rustc_mir_dataflow/src/value_analysis.rs index 7df01142264..ab16b60f82d 100644 --- a/compiler/rustc_mir_dataflow/src/value_analysis.rs +++ b/compiler/rustc_mir_dataflow/src/value_analysis.rs @@ -777,10 +777,10 @@ pub enum TrackElem { Field(Field), } -impl<V, T> TryFrom<ProjectionElem<V, T>> for TrackElem { +impl<V, T1, T2> TryFrom<ProjectionElem<V, T1, T2>> for TrackElem { type Error = (); - fn try_from(value: ProjectionElem<V, T>) -> Result<Self, Self::Error> { + fn try_from(value: ProjectionElem<V, T1, T2>) -> Result<Self, Self::Error> { match value { ProjectionElem::Field(field, _) => Ok(TrackElem::Field(field)), _ => Err(()), diff --git a/compiler/rustc_mir_transform/src/check_unsafety.rs b/compiler/rustc_mir_transform/src/check_unsafety.rs index e783d189137..9c22b5df73c 100644 --- a/compiler/rustc_mir_transform/src/check_unsafety.rs +++ b/compiler/rustc_mir_transform/src/check_unsafety.rs @@ -1,6 +1,7 @@ use rustc_data_structures::fx::FxHashSet; use rustc_errors::struct_span_err; use rustc_hir as hir; +use rustc_hir::def::DefKind; use rustc_hir::def_id::{DefId, LocalDefId}; use rustc_hir::hir_id::HirId; use rustc_hir::intravisit; @@ -134,6 +135,28 @@ impl<'tcx> Visitor<'tcx> for UnsafetyChecker<'_, 'tcx> { self.super_rvalue(rvalue, location); } + fn visit_operand(&mut self, op: &Operand<'tcx>, location: Location) { + if let Operand::Constant(constant) = op { + let maybe_uneval = match constant.literal { + ConstantKind::Val(..) | ConstantKind::Ty(_) => None, + ConstantKind::Unevaluated(uv, _) => Some(uv), + }; + + if let Some(uv) = maybe_uneval { + if uv.promoted.is_none() { + let def_id = uv.def.def_id_for_type_of(); + if self.tcx.def_kind(def_id) == DefKind::InlineConst { + let local_def_id = def_id.expect_local(); + let UnsafetyCheckResult { violations, used_unsafe_blocks, .. } = + self.tcx.unsafety_check_result(local_def_id); + self.register_violations(violations, used_unsafe_blocks.iter().copied()); + } + } + } + } + self.super_operand(op, location); + } + fn visit_place(&mut self, place: &Place<'tcx>, context: PlaceContext, _location: Location) { // On types with `scalar_valid_range`, prevent // * `&mut x.field` @@ -410,6 +433,12 @@ impl<'tcx> intravisit::Visitor<'tcx> for UnusedUnsafeVisitor<'_, 'tcx> { intravisit::walk_block(self, block); } + fn visit_anon_const(&mut self, c: &'tcx hir::AnonConst) { + if matches!(self.tcx.def_kind(c.def_id), DefKind::InlineConst) { + self.visit_body(self.tcx.hir().body(c.body)) + } + } + fn visit_fn( &mut self, fk: intravisit::FnKind<'tcx>, @@ -471,7 +500,7 @@ fn unsafety_check_result<'tcx>( // `mir_built` force this. let body = &tcx.mir_built(def).borrow(); - if body.should_skip() { + if body.is_custom_mir() { return tcx.arena.alloc(UnsafetyCheckResult { violations: Vec::new(), used_unsafe_blocks: FxHashSet::default(), @@ -484,7 +513,7 @@ fn unsafety_check_result<'tcx>( let mut checker = UnsafetyChecker::new(body, def.did, tcx, param_env); checker.visit_body(&body); - let unused_unsafes = (!tcx.is_closure(def.did.to_def_id())) + let unused_unsafes = (!tcx.is_typeck_child(def.did.to_def_id())) .then(|| check_unused_unsafe(tcx, def.did, &checker.used_unsafe_blocks)); tcx.arena.alloc(UnsafetyCheckResult { @@ -516,8 +545,8 @@ fn report_unused_unsafe(tcx: TyCtxt<'_>, kind: UnusedUnsafe, id: HirId) { pub fn check_unsafety(tcx: TyCtxt<'_>, def_id: LocalDefId) { debug!("check_unsafety({:?})", def_id); - // closures are handled by their parent fn. - if tcx.is_closure(def_id.to_def_id()) { + // closures and inline consts are handled by their parent fn. + if tcx.is_typeck_child(def_id.to_def_id()) { return; } diff --git a/compiler/rustc_mir_transform/src/const_prop.rs b/compiler/rustc_mir_transform/src/const_prop.rs index b0514e03356..044b7ce65bd 100644 --- a/compiler/rustc_mir_transform/src/const_prop.rs +++ b/compiler/rustc_mir_transform/src/const_prop.rs @@ -6,6 +6,7 @@ use std::cell::Cell; use either::Right; use rustc_ast::Mutability; +use rustc_const_eval::const_eval::CheckAlignment; use rustc_data_structures::fx::FxHashSet; use rustc_hir::def::DefKind; use rustc_index::bit_set::BitSet; @@ -22,7 +23,7 @@ use rustc_middle::ty::layout::{LayoutError, LayoutOf, LayoutOfHelpers, TyAndLayo use rustc_middle::ty::InternalSubsts; use rustc_middle::ty::{self, ConstKind, Instance, ParamEnv, Ty, TyCtxt, TypeVisitable}; use rustc_span::{def_id::DefId, Span}; -use rustc_target::abi::{self, HasDataLayout, Size, TargetDataLayout}; +use rustc_target::abi::{self, Align, HasDataLayout, Size, TargetDataLayout}; use rustc_target::spec::abi::Abi as CallAbi; use rustc_trait_selection::traits; @@ -186,16 +187,27 @@ impl<'mir, 'tcx> interpret::Machine<'mir, 'tcx> for ConstPropMachine<'mir, 'tcx> type MemoryKind = !; #[inline(always)] - fn enforce_alignment(_ecx: &InterpCx<'mir, 'tcx, Self>) -> bool { + fn enforce_alignment(_ecx: &InterpCx<'mir, 'tcx, Self>) -> CheckAlignment { // We do not check for alignment to avoid having to carry an `Align` // in `ConstValue::ByRef`. - false + CheckAlignment::No } #[inline(always)] fn enforce_validity(_ecx: &InterpCx<'mir, 'tcx, Self>) -> bool { false // for now, we don't enforce validity } + fn alignment_check_failed( + ecx: &InterpCx<'mir, 'tcx, Self>, + _has: Align, + _required: Align, + _check: CheckAlignment, + ) -> InterpResult<'tcx, ()> { + span_bug!( + ecx.cur_span(), + "`alignment_check_failed` called when no alignment check requested" + ) + } fn load_mir( _ecx: &InterpCx<'mir, 'tcx, Self>, diff --git a/compiler/rustc_mir_transform/src/dataflow_const_prop.rs b/compiler/rustc_mir_transform/src/dataflow_const_prop.rs index e9027387413..c75fe2327de 100644 --- a/compiler/rustc_mir_transform/src/dataflow_const_prop.rs +++ b/compiler/rustc_mir_transform/src/dataflow_const_prop.rs @@ -2,6 +2,7 @@ //! //! Currently, this pass only propagates scalar values. +use rustc_const_eval::const_eval::CheckAlignment; use rustc_const_eval::interpret::{ConstValue, ImmTy, Immediate, InterpCx, Scalar}; use rustc_data_structures::fx::FxHashMap; use rustc_middle::mir::visit::{MutVisitor, Visitor}; @@ -10,6 +11,7 @@ use rustc_middle::ty::{self, Ty, TyCtxt}; use rustc_mir_dataflow::value_analysis::{Map, State, TrackElem, ValueAnalysis, ValueOrPlace}; use rustc_mir_dataflow::{lattice::FlatSet, Analysis, ResultsVisitor, SwitchIntEdgeEffects}; use rustc_span::DUMMY_SP; +use rustc_target::abi::Align; use crate::MirPass; @@ -448,13 +450,21 @@ impl<'mir, 'tcx> rustc_const_eval::interpret::Machine<'mir, 'tcx> for DummyMachi type MemoryKind = !; const PANIC_ON_ALLOC_FAIL: bool = true; - fn enforce_alignment(_ecx: &InterpCx<'mir, 'tcx, Self>) -> bool { + fn enforce_alignment(_ecx: &InterpCx<'mir, 'tcx, Self>) -> CheckAlignment { unimplemented!() } fn enforce_validity(_ecx: &InterpCx<'mir, 'tcx, Self>) -> bool { unimplemented!() } + fn alignment_check_failed( + _ecx: &InterpCx<'mir, 'tcx, Self>, + _has: Align, + _required: Align, + _check: CheckAlignment, + ) -> interpret::InterpResult<'tcx, ()> { + unimplemented!() + } fn find_mir_or_eval_fn( _ecx: &mut InterpCx<'mir, 'tcx, Self>, diff --git a/compiler/rustc_mir_transform/src/dest_prop.rs b/compiler/rustc_mir_transform/src/dest_prop.rs index 97485c4f57b..3e45319431c 100644 --- a/compiler/rustc_mir_transform/src/dest_prop.rs +++ b/compiler/rustc_mir_transform/src/dest_prop.rs @@ -132,15 +132,12 @@ use std::collections::hash_map::{Entry, OccupiedEntry}; use crate::MirPass; use rustc_data_structures::fx::FxHashMap; use rustc_index::bit_set::BitSet; +use rustc_middle::mir::visit::{MutVisitor, PlaceContext, Visitor}; use rustc_middle::mir::{dump_mir, PassWhere}; use rustc_middle::mir::{ traversal, BasicBlock, Body, InlineAsmOperand, Local, LocalKind, Location, Operand, Place, Rvalue, Statement, StatementKind, TerminatorKind, }; -use rustc_middle::mir::{ - visit::{MutVisitor, PlaceContext, Visitor}, - ProjectionElem, -}; use rustc_middle::ty::TyCtxt; use rustc_mir_dataflow::impls::MaybeLiveLocals; use rustc_mir_dataflow::{Analysis, ResultsCursor}; @@ -359,40 +356,45 @@ struct FilterInformation<'a, 'body, 'alloc, 'tcx> { // through these methods, and not directly. impl<'alloc> Candidates<'alloc> { /// Just `Vec::retain`, but the condition is inverted and we add debugging output - fn vec_remove_debug( + fn vec_filter_candidates( src: Local, v: &mut Vec<Local>, - mut f: impl FnMut(Local) -> bool, + mut f: impl FnMut(Local) -> CandidateFilter, at: Location, ) { v.retain(|dest| { let remove = f(*dest); - if remove { + if remove == CandidateFilter::Remove { trace!("eliminating {:?} => {:?} due to conflict at {:?}", src, dest, at); } - !remove + remove == CandidateFilter::Keep }); } - /// `vec_remove_debug` but for an `Entry` - fn entry_remove( + /// `vec_filter_candidates` but for an `Entry` + fn entry_filter_candidates( mut entry: OccupiedEntry<'_, Local, Vec<Local>>, p: Local, - f: impl FnMut(Local) -> bool, + f: impl FnMut(Local) -> CandidateFilter, at: Location, ) { let candidates = entry.get_mut(); - Self::vec_remove_debug(p, candidates, f, at); + Self::vec_filter_candidates(p, candidates, f, at); if candidates.len() == 0 { entry.remove(); } } - /// Removes all candidates `(p, q)` or `(q, p)` where `p` is the indicated local and `f(q)` is true. - fn remove_candidates_if(&mut self, p: Local, mut f: impl FnMut(Local) -> bool, at: Location) { + /// For all candidates `(p, q)` or `(q, p)` removes the candidate if `f(q)` says to do so + fn filter_candidates_by( + &mut self, + p: Local, + mut f: impl FnMut(Local) -> CandidateFilter, + at: Location, + ) { // Cover the cases where `p` appears as a `src` if let Entry::Occupied(entry) = self.c.entry(p) { - Self::entry_remove(entry, p, &mut f, at); + Self::entry_filter_candidates(entry, p, &mut f, at); } // And the cases where `p` appears as a `dest` let Some(srcs) = self.reverse.get_mut(&p) else { @@ -401,18 +403,31 @@ impl<'alloc> Candidates<'alloc> { // We use `retain` here to remove the elements from the reverse set if we've removed the // matching candidate in the forward set. srcs.retain(|src| { - if !f(*src) { + if f(*src) == CandidateFilter::Keep { return true; } let Entry::Occupied(entry) = self.c.entry(*src) else { return false; }; - Self::entry_remove(entry, *src, |dest| dest == p, at); + Self::entry_filter_candidates( + entry, + *src, + |dest| { + if dest == p { CandidateFilter::Remove } else { CandidateFilter::Keep } + }, + at, + ); false }); } } +#[derive(Copy, Clone, PartialEq, Eq)] +enum CandidateFilter { + Keep, + Remove, +} + impl<'a, 'body, 'alloc, 'tcx> FilterInformation<'a, 'body, 'alloc, 'tcx> { /// Filters the set of candidates to remove those that conflict. /// @@ -460,7 +475,7 @@ impl<'a, 'body, 'alloc, 'tcx> FilterInformation<'a, 'body, 'alloc, 'tcx> { for (i, statement) in data.statements.iter().enumerate().rev() { self.at = Location { block, statement_index: i }; self.live.seek_after_primary_effect(self.at); - self.get_statement_write_info(&statement.kind); + self.write_info.for_statement(&statement.kind, self.body); self.apply_conflicts(); } } @@ -469,80 +484,59 @@ impl<'a, 'body, 'alloc, 'tcx> FilterInformation<'a, 'body, 'alloc, 'tcx> { fn apply_conflicts(&mut self) { let writes = &self.write_info.writes; for p in writes { - self.candidates.remove_candidates_if( + let other_skip = self.write_info.skip_pair.and_then(|(a, b)| { + if a == *p { + Some(b) + } else if b == *p { + Some(a) + } else { + None + } + }); + self.candidates.filter_candidates_by( *p, - // It is possible that a local may be live for less than the - // duration of a statement This happens in the case of function - // calls or inline asm. Because of this, we also mark locals as - // conflicting when both of them are written to in the same - // statement. - |q| self.live.contains(q) || writes.contains(&q), + |q| { + if Some(q) == other_skip { + return CandidateFilter::Keep; + } + // It is possible that a local may be live for less than the + // duration of a statement This happens in the case of function + // calls or inline asm. Because of this, we also mark locals as + // conflicting when both of them are written to in the same + // statement. + if self.live.contains(q) || writes.contains(&q) { + CandidateFilter::Remove + } else { + CandidateFilter::Keep + } + }, self.at, ); } } - - /// Gets the write info for the `statement`. - fn get_statement_write_info(&mut self, statement: &StatementKind<'tcx>) { - self.write_info.writes.clear(); - match statement { - StatementKind::Assign(box (lhs, rhs)) => match rhs { - Rvalue::Use(op) => { - if !lhs.is_indirect() { - self.get_assign_use_write_info(*lhs, op); - return; - } - } - _ => (), - }, - _ => (), - } - - self.write_info.for_statement(statement); - } - - fn get_assign_use_write_info(&mut self, lhs: Place<'tcx>, rhs: &Operand<'tcx>) { - // We register the writes for the operand unconditionally - self.write_info.add_operand(rhs); - // However, we cannot do the same thing for the `lhs` as that would always block the - // optimization. Instead, we consider removing candidates manually. - let Some(rhs) = rhs.place() else { - self.write_info.add_place(lhs); - return; - }; - // Find out which candidate pair we should skip, if any - let Some((src, dest)) = places_to_candidate_pair(lhs, rhs, self.body) else { - self.write_info.add_place(lhs); - return; - }; - self.candidates.remove_candidates_if( - lhs.local, - |other| { - // Check if this is the candidate pair that should not be removed - if (lhs.local == src && other == dest) || (lhs.local == dest && other == src) { - return false; - } - // Otherwise, do the "standard" thing - self.live.contains(other) - }, - self.at, - ) - } } /// Describes where a statement/terminator writes to #[derive(Default, Debug)] struct WriteInfo { writes: Vec<Local>, + /// If this pair of locals is a candidate pair, completely skip processing it during this + /// statement. All other candidates are unaffected. + skip_pair: Option<(Local, Local)>, } impl WriteInfo { - fn for_statement<'tcx>(&mut self, statement: &StatementKind<'tcx>) { + fn for_statement<'tcx>(&mut self, statement: &StatementKind<'tcx>, body: &Body<'tcx>) { + self.reset(); match statement { StatementKind::Assign(box (lhs, rhs)) => { self.add_place(*lhs); match rhs { - Rvalue::Use(op) | Rvalue::Repeat(op, _) => { + Rvalue::Use(op) => { + self.add_operand(op); + self.consider_skipping_for_assign_use(*lhs, op, body); + } + Rvalue::Repeat(op, _) => { self.add_operand(op); } Rvalue::Cast(_, op, _) @@ -586,8 +580,22 @@ impl WriteInfo { } } + fn consider_skipping_for_assign_use<'tcx>( + &mut self, + lhs: Place<'tcx>, + rhs: &Operand<'tcx>, + body: &Body<'tcx>, + ) { + let Some(rhs) = rhs.place() else { + return + }; + if let Some(pair) = places_to_candidate_pair(lhs, rhs, body) { + self.skip_pair = Some(pair); + } + } + fn for_terminator<'tcx>(&mut self, terminator: &TerminatorKind<'tcx>) { - self.writes.clear(); + self.reset(); match terminator { TerminatorKind::SwitchInt { discr: op, .. } | TerminatorKind::Assert { cond: op, .. } => { @@ -657,15 +665,16 @@ impl WriteInfo { Operand::Copy(_) | Operand::Constant(_) => (), } } + + fn reset(&mut self) { + self.writes.clear(); + self.skip_pair = None; + } } ///////////////////////////////////////////////////// // Candidate accumulation -fn is_constant<'tcx>(place: Place<'tcx>) -> bool { - place.projection.iter().all(|p| !matches!(p, ProjectionElem::Deref | ProjectionElem::Index(_))) -} - /// If the pair of places is being considered for merging, returns the candidate which would be /// merged in order to accomplish this. /// @@ -741,10 +750,6 @@ impl<'tcx> Visitor<'tcx> for FindAssignments<'_, '_, 'tcx> { Rvalue::Use(Operand::Copy(rhs) | Operand::Move(rhs)), )) = &statement.kind { - if !is_constant(*lhs) || !is_constant(*rhs) { - return; - } - let Some((src, dest)) = places_to_candidate_pair(*lhs, *rhs, self.body) else { return; }; diff --git a/compiler/rustc_mir_transform/src/generator.rs b/compiler/rustc_mir_transform/src/generator.rs index c08593afe9d..c097af61611 100644 --- a/compiler/rustc_mir_transform/src/generator.rs +++ b/compiler/rustc_mir_transform/src/generator.rs @@ -490,7 +490,7 @@ fn locals_live_across_suspend_points<'tcx>( // Calculate when MIR locals have live storage. This gives us an upper bound of their // lifetimes. - let mut storage_live = MaybeStorageLive::new(always_live_locals.clone()) + let mut storage_live = MaybeStorageLive::new(std::borrow::Cow::Borrowed(always_live_locals)) .into_engine(tcx, body_ref) .iterate_to_fixpoint() .into_results_cursor(body_ref); diff --git a/compiler/rustc_mir_transform/src/inline.rs b/compiler/rustc_mir_transform/src/inline.rs index 220cf7df9c6..9d560f5c837 100644 --- a/compiler/rustc_mir_transform/src/inline.rs +++ b/compiler/rustc_mir_transform/src/inline.rs @@ -849,7 +849,7 @@ impl<'tcx> Visitor<'tcx> for CostChecker<'_, 'tcx> { }; let kind = match parent_ty.ty.kind() { - &ty::Opaque(def_id, substs) => { + &ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => { self.tcx.bound_type_of(def_id).subst(self.tcx, substs).kind() } kind => kind, diff --git a/compiler/rustc_mir_transform/src/remove_zsts.rs b/compiler/rustc_mir_transform/src/remove_zsts.rs index 569e783fee8..6cabef92d8c 100644 --- a/compiler/rustc_mir_transform/src/remove_zsts.rs +++ b/compiler/rustc_mir_transform/src/remove_zsts.rs @@ -52,7 +52,11 @@ impl<'tcx> MirPass<'tcx> for RemoveZsts { fn maybe_zst(ty: Ty<'_>) -> bool { match ty.kind() { // maybe ZST (could be more precise) - ty::Adt(..) | ty::Array(..) | ty::Closure(..) | ty::Tuple(..) | ty::Opaque(..) => true, + ty::Adt(..) + | ty::Array(..) + | ty::Closure(..) + | ty::Tuple(..) + | ty::Alias(ty::Opaque, ..) => true, // definitely ZST ty::FnDef(..) | ty::Never => true, // unreachable or can't be ZST diff --git a/compiler/rustc_mir_transform/src/shim.rs b/compiler/rustc_mir_transform/src/shim.rs index f92a0e826dc..f8b55c86287 100644 --- a/compiler/rustc_mir_transform/src/shim.rs +++ b/compiler/rustc_mir_transform/src/shim.rs @@ -336,8 +336,7 @@ impl<'tcx> CloneShimBuilder<'tcx> { // we must subst the self_ty because it's // otherwise going to be TySelf and we can't index // or access fields of a Place of type TySelf. - let substs = tcx.mk_substs_trait(self_ty, []); - let sig = tcx.bound_fn_sig(def_id).subst(tcx, substs); + let sig = tcx.bound_fn_sig(def_id).subst(tcx, &[self_ty.into()]); let sig = tcx.erase_late_bound_regions(sig); let span = tcx.def_span(def_id); @@ -417,10 +416,8 @@ impl<'tcx> CloneShimBuilder<'tcx> { ) { let tcx = self.tcx; - let substs = tcx.mk_substs_trait(ty, []); - // `func == Clone::clone(&ty) -> ty` - let func_ty = tcx.mk_fn_def(self.def_id, substs); + let func_ty = tcx.mk_fn_def(self.def_id, [ty]); let func = Operand::Constant(Box::new(Constant { span: self.span, user_ty: None, @@ -575,9 +572,8 @@ fn build_call_shim<'tcx>( // Create substitutions for the `Self` and `Args` generic parameters of the shim body. let arg_tup = tcx.mk_tup(untuple_args.iter()); - let sig_substs = tcx.mk_substs_trait(ty, [ty::subst::GenericArg::from(arg_tup)]); - (Some(sig_substs), Some(untuple_args)) + (Some([ty.into(), arg_tup.into()]), Some(untuple_args)) } else { (None, None) }; @@ -588,7 +584,7 @@ fn build_call_shim<'tcx>( assert_eq!(sig_substs.is_some(), !instance.has_polymorphic_mir_body()); let mut sig = - if let Some(sig_substs) = sig_substs { sig.subst(tcx, sig_substs) } else { sig.0 }; + if let Some(sig_substs) = sig_substs { sig.subst(tcx, &sig_substs) } else { sig.0 }; if let CallKind::Indirect(fnty) = call_kind { // `sig` determines our local decls, and thus the callee type in the `Call` terminator. This diff --git a/compiler/rustc_monomorphize/src/errors.rs b/compiler/rustc_monomorphize/src/errors.rs index f1ca72de8db..f15cf54718e 100644 --- a/compiler/rustc_monomorphize/src/errors.rs +++ b/compiler/rustc_monomorphize/src/errors.rs @@ -77,3 +77,9 @@ pub struct SymbolAlreadyDefined { pub span: Option<Span>, pub symbol: String, } + +#[derive(Diagnostic)] +#[diag(monomorphize_couldnt_dump_mono_stats)] +pub struct CouldntDumpMonoStats { + pub error: String, +} diff --git a/compiler/rustc_monomorphize/src/partitioning/mod.rs b/compiler/rustc_monomorphize/src/partitioning/mod.rs index 932edc6675f..38e1d98e44e 100644 --- a/compiler/rustc_monomorphize/src/partitioning/mod.rs +++ b/compiler/rustc_monomorphize/src/partitioning/mod.rs @@ -95,6 +95,11 @@ mod default; mod merging; +use std::cmp; +use std::fs::{self, File}; +use std::io::{BufWriter, Write}; +use std::path::{Path, PathBuf}; + use rustc_data_structures::fx::{FxHashMap, FxHashSet}; use rustc_data_structures::sync; use rustc_hir::def_id::DefIdSet; @@ -104,11 +109,12 @@ use rustc_middle::mir::mono::{CodegenUnit, Linkage}; use rustc_middle::ty::print::with_no_trimmed_paths; use rustc_middle::ty::query::Providers; use rustc_middle::ty::TyCtxt; +use rustc_session::config::SwitchWithOptPath; use rustc_span::symbol::Symbol; use crate::collector::InliningMap; use crate::collector::{self, MonoItemCollectionMode}; -use crate::errors::{SymbolAlreadyDefined, UnknownPartitionStrategy}; +use crate::errors::{CouldntDumpMonoStats, SymbolAlreadyDefined, UnknownPartitionStrategy}; pub struct PartitioningCx<'a, 'tcx> { tcx: TyCtxt<'tcx>, @@ -411,6 +417,15 @@ fn collect_and_partition_mono_items<'tcx>( }) .collect(); + // Output monomorphization stats per def_id + if let SwitchWithOptPath::Enabled(ref path) = tcx.sess.opts.unstable_opts.dump_mono_stats { + if let Err(err) = + dump_mono_items_stats(tcx, &codegen_units, path, tcx.sess.opts.crate_name.as_deref()) + { + tcx.sess.emit_fatal(CouldntDumpMonoStats { error: err.to_string() }); + } + } + if tcx.sess.opts.unstable_opts.print_mono_items.is_some() { let mut item_to_cgus: FxHashMap<_, Vec<_>> = Default::default(); @@ -465,6 +480,67 @@ fn collect_and_partition_mono_items<'tcx>( (tcx.arena.alloc(mono_items), codegen_units) } +/// Outputs stats about instantation counts and estimated size, per `MonoItem`'s +/// def, to a file in the given output directory. +fn dump_mono_items_stats<'tcx>( + tcx: TyCtxt<'tcx>, + codegen_units: &[CodegenUnit<'tcx>], + output_directory: &Option<PathBuf>, + crate_name: Option<&str>, +) -> Result<(), Box<dyn std::error::Error>> { + let output_directory = if let Some(ref directory) = output_directory { + fs::create_dir_all(directory)?; + directory + } else { + Path::new(".") + }; + + let filename = format!("{}.mono_items.md", crate_name.unwrap_or("unknown-crate")); + let output_path = output_directory.join(&filename); + let file = File::create(output_path)?; + let mut file = BufWriter::new(file); + + // Gather instantiated mono items grouped by def_id + let mut items_per_def_id: FxHashMap<_, Vec<_>> = Default::default(); + for cgu in codegen_units { + for (&mono_item, _) in cgu.items() { + // Avoid variable-sized compiler-generated shims + if mono_item.is_user_defined() { + items_per_def_id.entry(mono_item.def_id()).or_default().push(mono_item); + } + } + } + + // Output stats sorted by total instantiated size, from heaviest to lightest + let mut stats: Vec<_> = items_per_def_id + .into_iter() + .map(|(def_id, items)| { + let instantiation_count = items.len(); + let size_estimate = items[0].size_estimate(tcx); + let total_estimate = instantiation_count * size_estimate; + (def_id, instantiation_count, size_estimate, total_estimate) + }) + .collect(); + stats.sort_unstable_by_key(|(_, _, _, total_estimate)| cmp::Reverse(*total_estimate)); + + if !stats.is_empty() { + writeln!( + file, + "| Item | Instantiation count | Estimated Cost Per Instantiation | Total Estimated Cost |" + )?; + writeln!(file, "| --- | ---: | ---: | ---: |")?; + for (def_id, instantiation_count, size_estimate, total_estimate) in stats { + let item = with_no_trimmed_paths!(tcx.def_path_str(def_id)); + writeln!( + file, + "| {item} | {instantiation_count} | {size_estimate} | {total_estimate} |" + )?; + } + } + + Ok(()) +} + fn codegened_and_inlined_items<'tcx>(tcx: TyCtxt<'tcx>, (): ()) -> &'tcx DefIdSet { let (items, cgus) = tcx.collect_and_partition_mono_items(()); let mut visited = DefIdSet::default(); diff --git a/compiler/rustc_parse/src/errors.rs b/compiler/rustc_parse/src/errors.rs index 9875cde4a05..18a0bee9c2e 100644 --- a/compiler/rustc_parse/src/errors.rs +++ b/compiler/rustc_parse/src/errors.rs @@ -1221,3 +1221,11 @@ pub(crate) struct UnexpectedIfWithIf( #[suggestion(applicability = "machine-applicable", code = " ", style = "verbose")] pub Span, ); + +#[derive(Diagnostic)] +#[diag(parse_maybe_fn_typo_with_impl)] +pub(crate) struct FnTypoWithImpl { + #[primary_span] + #[suggestion(applicability = "maybe-incorrect", code = "impl", style = "verbose")] + pub fn_span: Span, +} diff --git a/compiler/rustc_parse/src/parser/diagnostics.rs b/compiler/rustc_parse/src/parser/diagnostics.rs index c316a4dd6b4..0191ab730c8 100644 --- a/compiler/rustc_parse/src/parser/diagnostics.rs +++ b/compiler/rustc_parse/src/parser/diagnostics.rs @@ -159,8 +159,6 @@ enum IsStandalone { Standalone, /// It's a subexpression, i.e., *not* standalone. Subexpr, - /// It's maybe standalone; we're not sure. - Maybe, } #[derive(Debug, Copy, Clone, PartialEq, Eq)] @@ -213,14 +211,8 @@ impl MultiSugg { err.multipart_suggestion(&self.msg, self.patches, self.applicability); } - /// Overrides individual messages and applicabilities. - fn emit_many( - err: &mut Diagnostic, - msg: &str, - applicability: Applicability, - suggestions: impl Iterator<Item = Self>, - ) { - err.multipart_suggestions(msg, suggestions.map(|s| s.patches), applicability); + fn emit_verbose(self, err: &mut Diagnostic) { + err.multipart_suggestion_verbose(&self.msg, self.patches, self.applicability); } } @@ -1267,12 +1259,10 @@ impl<'a> Parser<'a> { &mut self, operand_expr: P<Expr>, op_span: Span, - prev_is_semi: bool, + start_stmt: bool, ) -> PResult<'a, P<Expr>> { - let standalone = - if prev_is_semi { IsStandalone::Standalone } else { IsStandalone::Subexpr }; + let standalone = if start_stmt { IsStandalone::Standalone } else { IsStandalone::Subexpr }; let kind = IncDecRecovery { standalone, op: IncOrDec::Inc, fixity: UnaryFixity::Pre }; - self.recover_from_inc_dec(operand_expr, kind, op_span) } @@ -1280,13 +1270,13 @@ impl<'a> Parser<'a> { &mut self, operand_expr: P<Expr>, op_span: Span, + start_stmt: bool, ) -> PResult<'a, P<Expr>> { let kind = IncDecRecovery { - standalone: IsStandalone::Maybe, + standalone: if start_stmt { IsStandalone::Standalone } else { IsStandalone::Subexpr }, op: IncOrDec::Inc, fixity: UnaryFixity::Post, }; - self.recover_from_inc_dec(operand_expr, kind, op_span) } @@ -1315,34 +1305,25 @@ impl<'a> Parser<'a> { }; match kind.standalone { - IsStandalone::Standalone => self.inc_dec_standalone_suggest(kind, spans).emit(&mut err), + IsStandalone::Standalone => { + self.inc_dec_standalone_suggest(kind, spans).emit_verbose(&mut err) + } IsStandalone::Subexpr => { let Ok(base_src) = self.span_to_snippet(base.span) - else { return help_base_case(err, base) }; + else { return help_base_case(err, base) }; match kind.fixity { UnaryFixity::Pre => { self.prefix_inc_dec_suggest(base_src, kind, spans).emit(&mut err) } UnaryFixity::Post => { - self.postfix_inc_dec_suggest(base_src, kind, spans).emit(&mut err) + // won't suggest since we can not handle the precedences + // for example: `a + b++` has been parsed (a + b)++ and we can not suggest here + if !matches!(base.kind, ExprKind::Binary(_, _, _)) { + self.postfix_inc_dec_suggest(base_src, kind, spans).emit(&mut err) + } } } } - IsStandalone::Maybe => { - let Ok(base_src) = self.span_to_snippet(base.span) - else { return help_base_case(err, base) }; - let sugg1 = match kind.fixity { - UnaryFixity::Pre => self.prefix_inc_dec_suggest(base_src, kind, spans), - UnaryFixity::Post => self.postfix_inc_dec_suggest(base_src, kind, spans), - }; - let sugg2 = self.inc_dec_standalone_suggest(kind, spans); - MultiSugg::emit_many( - &mut err, - "use `+= 1` instead", - Applicability::Unspecified, - [sugg1, sugg2].into_iter(), - ) - } } Err(err) } @@ -1392,7 +1373,6 @@ impl<'a> Parser<'a> { } patches.push((post_span, format!(" {}= 1", kind.op.chr()))); - MultiSugg { msg: format!("use `{}= 1` instead", kind.op.chr()), patches, diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index 8a3545eb3be..c0ed450b985 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -83,7 +83,7 @@ macro_rules! maybe_whole_expr { pub(super) enum LhsExpr { NotYetParsed, AttributesParsed(AttrWrapper), - AlreadyParsed(P<Expr>), + AlreadyParsed(P<Expr>, bool), // (expr, starts_statement) } impl From<Option<AttrWrapper>> for LhsExpr { @@ -101,7 +101,7 @@ impl From<P<Expr>> for LhsExpr { /// /// This conversion does not allocate. fn from(expr: P<Expr>) -> Self { - LhsExpr::AlreadyParsed(expr) + LhsExpr::AlreadyParsed(expr, false) } } @@ -173,7 +173,9 @@ impl<'a> Parser<'a> { min_prec: usize, lhs: LhsExpr, ) -> PResult<'a, P<Expr>> { - let mut lhs = if let LhsExpr::AlreadyParsed(expr) = lhs { + let mut starts_stmt = false; + let mut lhs = if let LhsExpr::AlreadyParsed(expr, starts_statement) = lhs { + starts_stmt = starts_statement; expr } else { let attrs = match lhs { @@ -292,7 +294,7 @@ impl<'a> Parser<'a> { let op_span = self.prev_token.span.to(self.token.span); // Eat the second `+` self.bump(); - lhs = self.recover_from_postfix_increment(lhs, op_span)?; + lhs = self.recover_from_postfix_increment(lhs, op_span, starts_stmt)?; continue; } @@ -590,14 +592,15 @@ impl<'a> Parser<'a> { token::BinOp(token::Plus) if this.look_ahead(1, |t| *t == token::BinOp(token::Plus)) => { - let prev_is_semi = this.prev_token == token::Semi; + let starts_stmt = this.prev_token == token::Semi + || this.prev_token == token::CloseDelim(Delimiter::Brace); let pre_span = this.token.span.to(this.look_ahead(1, |t| t.span)); // Eat both `+`s. this.bump(); this.bump(); let operand_expr = this.parse_dot_or_call_expr(Default::default())?; - this.recover_from_prefix_increment(operand_expr, pre_span, prev_is_semi) + this.recover_from_prefix_increment(operand_expr, pre_span, starts_stmt) } token::Ident(..) if this.token.is_keyword(kw::Box) => { make_it!(this, attrs, |this, _| this.parse_box_expr(lo)) diff --git a/compiler/rustc_parse/src/parser/item.rs b/compiler/rustc_parse/src/parser/item.rs index beb9d55d454..7c2d01509de 100644 --- a/compiler/rustc_parse/src/parser/item.rs +++ b/compiler/rustc_parse/src/parser/item.rs @@ -3,6 +3,7 @@ use crate::errors::{DocCommentDoesNotDocumentAnything, UseEmptyBlockNotSemi}; use super::diagnostics::{dummy_arg, ConsumeClosingDelim}; use super::ty::{AllowPlus, RecoverQPath, RecoverReturnSign}; use super::{AttrWrapper, FollowedByType, ForceCollect, Parser, PathStyle, TrailingToken}; +use crate::errors::FnTypoWithImpl; use rustc_ast::ast::*; use rustc_ast::ptr::P; use rustc_ast::token::{self, Delimiter, TokenKind}; @@ -2131,11 +2132,26 @@ impl<'a> Parser<'a> { vis: &Visibility, case: Case, ) -> PResult<'a, (Ident, FnSig, Generics, Option<P<Block>>)> { + let fn_span = self.token.span; let header = self.parse_fn_front_matter(vis, case)?; // `const ... fn` let ident = self.parse_ident()?; // `foo` let mut generics = self.parse_generics()?; // `<'a, T, ...>` - let decl = - self.parse_fn_decl(fn_parse_mode.req_name, AllowPlus::Yes, RecoverReturnSign::Yes)?; // `(p: u8, ...)` + let decl = match self.parse_fn_decl( + fn_parse_mode.req_name, + AllowPlus::Yes, + RecoverReturnSign::Yes, + ) { + Ok(decl) => decl, + Err(old_err) => { + // If we see `for Ty ...` then user probably meant `impl` item. + if self.token.is_keyword(kw::For) { + old_err.cancel(); + return Err(self.sess.create_err(FnTypoWithImpl { fn_span })); + } else { + return Err(old_err); + } + } + }; generics.where_clause = self.parse_where_clause()?; // `where T: Ord` let mut sig_hi = self.prev_token.span; diff --git a/compiler/rustc_parse/src/parser/stmt.rs b/compiler/rustc_parse/src/parser/stmt.rs index 42197e63797..bae7f2670cb 100644 --- a/compiler/rustc_parse/src/parser/stmt.rs +++ b/compiler/rustc_parse/src/parser/stmt.rs @@ -164,7 +164,7 @@ impl<'a> Parser<'a> { // Perform this outside of the `collect_tokens_trailing_token` closure, // since our outer attributes do not apply to this part of the expression let expr = self.with_res(Restrictions::STMT_EXPR, |this| { - this.parse_assoc_expr_with(0, LhsExpr::AlreadyParsed(expr)) + this.parse_assoc_expr_with(0, LhsExpr::AlreadyParsed(expr, true)) })?; Ok(self.mk_stmt(lo.to(self.prev_token.span), StmtKind::Expr(expr))) } else { @@ -198,7 +198,7 @@ impl<'a> Parser<'a> { let e = self.mk_expr(lo.to(hi), ExprKind::MacCall(mac)); let e = self.maybe_recover_from_bad_qpath(e)?; let e = self.parse_dot_or_call_expr_with(e, lo, attrs)?; - let e = self.parse_assoc_expr_with(0, LhsExpr::AlreadyParsed(e))?; + let e = self.parse_assoc_expr_with(0, LhsExpr::AlreadyParsed(e, false))?; StmtKind::Expr(e) }; Ok(self.mk_stmt(lo.to(hi), kind)) diff --git a/compiler/rustc_privacy/src/lib.rs b/compiler/rustc_privacy/src/lib.rs index a254c892478..72d38aeac7a 100644 --- a/compiler/rustc_privacy/src/lib.rs +++ b/compiler/rustc_privacy/src/lib.rs @@ -88,10 +88,7 @@ trait DefIdVisitor<'tcx> { fn visit_trait(&mut self, trait_ref: TraitRef<'tcx>) -> ControlFlow<Self::BreakTy> { self.skeleton().visit_trait(trait_ref) } - fn visit_projection_ty( - &mut self, - projection: ty::ProjectionTy<'tcx>, - ) -> ControlFlow<Self::BreakTy> { + fn visit_projection_ty(&mut self, projection: ty::AliasTy<'tcx>) -> ControlFlow<Self::BreakTy> { self.skeleton().visit_projection_ty(projection) } fn visit_predicates( @@ -113,29 +110,25 @@ where V: DefIdVisitor<'tcx> + ?Sized, { fn visit_trait(&mut self, trait_ref: TraitRef<'tcx>) -> ControlFlow<V::BreakTy> { - let TraitRef { def_id, substs } = trait_ref; + let TraitRef { def_id, substs, .. } = trait_ref; self.def_id_visitor.visit_def_id(def_id, "trait", &trait_ref.print_only_trait_path())?; if self.def_id_visitor.shallow() { ControlFlow::CONTINUE } else { substs.visit_with(self) } } - fn visit_projection_ty( - &mut self, - projection: ty::ProjectionTy<'tcx>, - ) -> ControlFlow<V::BreakTy> { + fn visit_projection_ty(&mut self, projection: ty::AliasTy<'tcx>) -> ControlFlow<V::BreakTy> { let tcx = self.def_id_visitor.tcx(); - let (trait_ref, assoc_substs) = if tcx.def_kind(projection.item_def_id) - != DefKind::ImplTraitPlaceholder - { - projection.trait_ref_and_own_substs(tcx) - } else { - // HACK(RPITIT): Remove this when RPITITs are lowered to regular assoc tys - let def_id = tcx.impl_trait_in_trait_parent(projection.item_def_id); - let trait_generics = tcx.generics_of(def_id); - ( - ty::TraitRef { def_id, substs: projection.substs.truncate_to(tcx, trait_generics) }, - &projection.substs[trait_generics.count()..], - ) - }; + let (trait_ref, assoc_substs) = + if tcx.def_kind(projection.def_id) != DefKind::ImplTraitPlaceholder { + projection.trait_ref_and_own_substs(tcx) + } else { + // HACK(RPITIT): Remove this when RPITITs are lowered to regular assoc tys + let def_id = tcx.impl_trait_in_trait_parent(projection.def_id); + let trait_generics = tcx.generics_of(def_id); + ( + tcx.mk_trait_ref(def_id, projection.substs.truncate_to(tcx, trait_generics)), + &projection.substs[trait_generics.count()..], + ) + }; self.visit_trait(trait_ref)?; if self.def_id_visitor.shallow() { ControlFlow::CONTINUE @@ -214,7 +207,7 @@ where } } } - ty::Projection(proj) => { + ty::Alias(ty::Projection, proj) => { if self.def_id_visitor.skip_assoc_tys() { // Visitors searching for minimal visibility/reachability want to // conservatively approximate associated types like `<Type as Trait>::Alias` @@ -241,7 +234,7 @@ where self.def_id_visitor.visit_def_id(def_id, "trait", &trait_ref)?; } } - ty::Opaque(def_id, ..) => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }) => { // Skip repeated `Opaque`s to avoid infinite recursion. if self.visited_opaque_tys.insert(def_id) { // The intent is to treat `impl Trait1 + Trait2` identically to @@ -1308,15 +1301,15 @@ impl<'tcx> Visitor<'tcx> for TypePrivacyVisitor<'tcx> { let is_local_static = if let DefKind::Static(_) = kind { def_id.is_local() } else { false }; if !self.item_is_accessible(def_id) && !is_local_static { - let sess = self.tcx.sess; - let sm = sess.source_map(); - let name = match qpath { - hir::QPath::Resolved(..) | hir::QPath::LangItem(..) => { - sm.span_to_snippet(qpath.span()).ok() + let name = match *qpath { + hir::QPath::LangItem(it, ..) => { + self.tcx.lang_items().get(it).map(|did| self.tcx.def_path_str(did)) } + hir::QPath::Resolved(_, path) => Some(self.tcx.def_path_str(path.res.def_id())), hir::QPath::TypeRelative(_, segment) => Some(segment.ident.to_string()), }; let kind = kind.descr(def_id); + let sess = self.tcx.sess; let _ = match name { Some(name) => { sess.emit_err(ItemIsPrivate { span, kind, descr: (&name).into() }) diff --git a/compiler/rustc_query_system/src/error.rs b/compiler/rustc_query_system/src/error.rs index 7a20eaceba0..cf2f04c7486 100644 --- a/compiler/rustc_query_system/src/error.rs +++ b/compiler/rustc_query_system/src/error.rs @@ -49,7 +49,7 @@ pub struct Cycle { #[primary_span] pub span: Span, pub stack_bottom: String, - #[subdiagnostic(eager)] + #[subdiagnostic] pub cycle_stack: Vec<CycleStack>, #[subdiagnostic] pub stack_count: StackCount, diff --git a/compiler/rustc_resolve/src/late.rs b/compiler/rustc_resolve/src/late.rs index cf3e5946053..5b7a00101e9 100644 --- a/compiler/rustc_resolve/src/late.rs +++ b/compiler/rustc_resolve/src/late.rs @@ -566,6 +566,9 @@ struct LateResolutionVisitor<'a, 'b, 'ast> { /// FIXME #4948: Reuse ribs to avoid allocation. ribs: PerNS<Vec<Rib<'a>>>, + /// Previous poped `rib`, only used for diagnostic. + last_block_rib: Option<Rib<'a>>, + /// The current set of local scopes, for labels. label_ribs: Vec<Rib<'a, NodeId>>, @@ -873,6 +876,8 @@ impl<'a: 'ast, 'ast> Visitor<'ast> for LateResolutionVisitor<'a, '_, 'ast> { // Ignore errors in function bodies if this is rustdoc // Be sure not to set this until the function signature has been resolved. let previous_state = replace(&mut this.in_func_body, true); + // We only care block in the same function + this.last_block_rib = None; // Resolve the function body, potentially inside the body of an async closure this.with_lifetime_rib( LifetimeRibKind::Elided(LifetimeRes::Infer), @@ -1168,6 +1173,7 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> { type_ns: vec![Rib::new(start_rib_kind)], macro_ns: vec![Rib::new(start_rib_kind)], }, + last_block_rib: None, label_ribs: Vec::new(), lifetime_ribs: Vec::new(), lifetime_elision_candidates: None, @@ -3769,7 +3775,7 @@ impl<'a: 'ast, 'b, 'ast> LateResolutionVisitor<'a, 'b, 'ast> { self.ribs[ValueNS].pop(); self.label_ribs.pop(); } - self.ribs[ValueNS].pop(); + self.last_block_rib = self.ribs[ValueNS].pop(); if anonymous_module.is_some() { self.ribs[TypeNS].pop(); } diff --git a/compiler/rustc_resolve/src/late/diagnostics.rs b/compiler/rustc_resolve/src/late/diagnostics.rs index d43983ea815..49bbe37ee43 100644 --- a/compiler/rustc_resolve/src/late/diagnostics.rs +++ b/compiler/rustc_resolve/src/late/diagnostics.rs @@ -623,6 +623,22 @@ impl<'a: 'ast, 'ast> LateResolutionVisitor<'a, '_, 'ast> { return (true, candidates); } } + + // Try to find in last block rib + if let Some(rib) = &self.last_block_rib && let RibKind::NormalRibKind = rib.kind { + for (ident, &res) in &rib.bindings { + if let Res::Local(_) = res && path.len() == 1 && + ident.span.eq_ctxt(path[0].ident.span) && + ident.name == path[0].ident.name { + err.span_help( + ident.span, + &format!("the binding `{}` is available in a different scope in the same function", path_str), + ); + return (true, candidates); + } + } + } + return (false, candidates); } diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs index 6de564a3a06..3bafd3730bd 100644 --- a/compiler/rustc_session/src/config.rs +++ b/compiler/rustc_session/src/config.rs @@ -875,18 +875,12 @@ pub struct PacRet { pub key: PAuthKey, } -#[derive(Clone, Copy, Hash, Debug, PartialEq)] +#[derive(Clone, Copy, Hash, Debug, PartialEq, Default)] pub struct BranchProtection { pub bti: bool, pub pac_ret: Option<PacRet>, } -impl Default for BranchProtection { - fn default() -> Self { - BranchProtection { bti: false, pac_ret: None } - } -} - pub const fn default_lib_output() -> CrateType { CrateType::Rlib } @@ -1875,7 +1869,7 @@ fn parse_opt_level( .into_iter() .flat_map(|(i, s)| { // NB: This can match a string without `=`. - if let Some("opt-level") = s.splitn(2, '=').next() { Some(i) } else { None } + if let Some("opt-level") = s.split('=').next() { Some(i) } else { None } }) .max(); if max_o > max_c { @@ -1912,7 +1906,7 @@ fn select_debuginfo( .into_iter() .flat_map(|(i, s)| { // NB: This can match a string without `=`. - if let Some("debuginfo") = s.splitn(2, '=').next() { Some(i) } else { None } + if let Some("debuginfo") = s.split('=').next() { Some(i) } else { None } }) .max(); if max_g > max_c { diff --git a/compiler/rustc_session/src/errors.rs b/compiler/rustc_session/src/errors.rs index ee492f802a7..e72b76cfee9 100644 --- a/compiler/rustc_session/src/errors.rs +++ b/compiler/rustc_session/src/errors.rs @@ -116,6 +116,10 @@ pub struct StackProtectorNotSupportedForTarget<'a> { } #[derive(Diagnostic)] +#[diag(session_branch_protection_requires_aarch64)] +pub(crate) struct BranchProtectionRequiresAArch64; + +#[derive(Diagnostic)] #[diag(session_split_debuginfo_unstable_platform)] pub struct SplitDebugInfoUnstablePlatform { pub debuginfo: SplitDebuginfo, @@ -176,7 +180,7 @@ impl ExprParenthesesNeeded { #[derive(Diagnostic)] #[diag(session_skipping_const_checks)] pub struct SkippingConstChecks { - #[subdiagnostic(eager)] + #[subdiagnostic] pub unleashed_features: Vec<UnleashedFeatureHelp>, } @@ -291,20 +295,33 @@ pub fn report_lit_error(sess: &ParseSess, err: LitError, lit: token::Lit, span: s.len() > 1 && s.starts_with(first_chars) && s[1..].chars().all(|c| c.is_ascii_digit()) } - // Try to lowercase the prefix if it's a valid base prefix. - fn fix_base_capitalisation(s: &str) -> Option<String> { - if let Some(stripped) = s.strip_prefix('B') { - Some(format!("0b{stripped}")) - } else if let Some(stripped) = s.strip_prefix('O') { - Some(format!("0o{stripped}")) - } else if let Some(stripped) = s.strip_prefix('X') { - Some(format!("0x{stripped}")) + // Try to lowercase the prefix if the prefix and suffix are valid. + fn fix_base_capitalisation(prefix: &str, suffix: &str) -> Option<String> { + let mut chars = suffix.chars(); + + let base_char = chars.next().unwrap(); + let base = match base_char { + 'B' => 2, + 'O' => 8, + 'X' => 16, + _ => return None, + }; + + // check that the suffix contains only base-appropriate characters + let valid = prefix == "0" + && chars + .filter(|c| *c != '_') + .take_while(|c| *c != 'i' && *c != 'u') + .all(|c| c.to_digit(base).is_some()); + + if valid { + Some(format!("0{}{}", base_char.to_ascii_lowercase(), &suffix[1..])) } else { None } } - let token::Lit { kind, suffix, .. } = lit; + let token::Lit { kind, symbol, suffix, .. } = lit; match err { // `LexerError` is an error, but it was already reported // by lexer, so here we don't report it the second time. @@ -320,7 +337,7 @@ pub fn report_lit_error(sess: &ParseSess, err: LitError, lit: token::Lit, span: if looks_like_width_suffix(&['i', 'u'], suf) { // If it looks like a width, try to be helpful. sess.emit_err(InvalidIntLiteralWidth { span, width: suf[1..].into() }); - } else if let Some(fixed) = fix_base_capitalisation(suf) { + } else if let Some(fixed) = fix_base_capitalisation(symbol.as_str(), suf) { sess.emit_err(InvalidNumLiteralBasePrefix { span, fixed }); } else { sess.emit_err(InvalidNumLiteralSuffix { span, suffix: suf.to_string() }); diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs index dab9c736d14..9e130287104 100644 --- a/compiler/rustc_session/src/options.rs +++ b/compiler/rustc_session/src/options.rs @@ -1294,6 +1294,9 @@ options! { computed `block` spans (one span encompassing a block's terminator and \ all statements). If `-Z instrument-coverage` is also enabled, create \ an additional `.html` file showing the computed coverage spans."), + dump_mono_stats: SwitchWithOptPath = (SwitchWithOptPath::Disabled, + parse_switch_with_opt_path, [UNTRACKED], + "output statistics about monomorphization collection (format: markdown)"), dwarf_version: Option<u32> = (None, parse_opt_number, [TRACKED], "version of DWARF debug information to emit (default: 2 or 4, depending on platform)"), dylib_lto: bool = (false, parse_bool, [UNTRACKED], diff --git a/compiler/rustc_session/src/session.rs b/compiler/rustc_session/src/session.rs index 8859b76d289..fdd883fbeed 100644 --- a/compiler/rustc_session/src/session.rs +++ b/compiler/rustc_session/src/session.rs @@ -3,10 +3,10 @@ use crate::code_stats::CodeStats; pub use crate::code_stats::{DataTypeKind, FieldInfo, SizeKind, VariantInfo}; use crate::config::{self, CrateType, InstrumentCoverage, OptLevel, OutputType, SwitchWithOptPath}; use crate::errors::{ - CannotEnableCrtStaticLinux, CannotMixAndMatchSanitizers, LinkerPluginToWindowsNotSupported, - NotCircumventFeature, ProfileSampleUseFileDoesNotExist, ProfileUseFileDoesNotExist, - SanitizerCfiEnabled, SanitizerNotSupported, SanitizersNotSupported, SkippingConstChecks, - SplitDebugInfoUnstablePlatform, StackProtectorNotSupportedForTarget, + BranchProtectionRequiresAArch64, CannotEnableCrtStaticLinux, CannotMixAndMatchSanitizers, + LinkerPluginToWindowsNotSupported, NotCircumventFeature, ProfileSampleUseFileDoesNotExist, + ProfileUseFileDoesNotExist, SanitizerCfiEnabled, SanitizerNotSupported, SanitizersNotSupported, + SkippingConstChecks, SplitDebugInfoUnstablePlatform, StackProtectorNotSupportedForTarget, TargetRequiresUnwindTables, UnleashedFeatureHelp, UnstableVirtualFunctionElimination, UnsupportedDwarfVersion, }; @@ -1565,6 +1565,10 @@ fn validate_commandline_args_with_session_available(sess: &Session) { } } + if sess.opts.unstable_opts.branch_protection.is_some() && sess.target.arch != "aarch64" { + sess.emit_err(BranchProtectionRequiresAArch64); + } + if let Some(dwarf_version) = sess.opts.unstable_opts.dwarf_version { if dwarf_version > 5 { sess.emit_err(UnsupportedDwarfVersion { dwarf_version }); diff --git a/compiler/rustc_span/src/analyze_source_file.rs b/compiler/rustc_span/src/analyze_source_file.rs index d3c2c5113bc..26cd54210d0 100644 --- a/compiler/rustc_span/src/analyze_source_file.rs +++ b/compiler/rustc_span/src/analyze_source_file.rs @@ -175,7 +175,7 @@ cfg_if::cfg_if! { // There might still be a tail left to analyze let tail_start = chunk_count * CHUNK_SIZE + intra_chunk_offset; if tail_start < src.len() { - analyze_source_file_generic(&src[tail_start as usize ..], + analyze_source_file_generic(&src[tail_start ..], src.len() - tail_start, output_offset + BytePos::from_usize(tail_start), lines, @@ -219,7 +219,7 @@ fn analyze_source_file_generic( while i < scan_len { let byte = unsafe { // We verified that i < scan_len <= src.len() - *src_bytes.get_unchecked(i as usize) + *src_bytes.get_unchecked(i) }; // How much to advance in order to get to the next UTF-8 char in the diff --git a/compiler/rustc_span/src/lib.rs b/compiler/rustc_span/src/lib.rs index 335bfc3302f..2181c090027 100644 --- a/compiler/rustc_span/src/lib.rs +++ b/compiler/rustc_span/src/lib.rs @@ -259,6 +259,10 @@ impl RealFileName { FileNameDisplayPreference::Remapped => { self.remapped_path_if_available().to_string_lossy() } + FileNameDisplayPreference::Short => self + .local_path_if_available() + .file_name() + .map_or_else(|| "".into(), |f| f.to_string_lossy()), } } } @@ -302,6 +306,9 @@ pub enum FileNameDisplayPreference { /// Display the path before the application of rewrite rules provided via `--remap-path-prefix`. /// This is appropriate for use in user-facing output (such as diagnostics). Local, + /// Display only the filename, as a way to reduce the verbosity of the output. + /// This is appropriate for use in user-facing output (such as diagnostics). + Short, } pub struct FileNameDisplay<'a> { @@ -1381,7 +1388,7 @@ impl<S: Encoder> Encodable<S> for SourceFile { 4 => { raw_diffs = Vec::with_capacity(bytes_per_diff * num_diffs); for diff in diff_iter { - raw_diffs.extend_from_slice(&(diff.0 as u32).to_le_bytes()); + raw_diffs.extend_from_slice(&(diff.0).to_le_bytes()); } } _ => unreachable!(), diff --git a/compiler/rustc_span/src/source_map.rs b/compiler/rustc_span/src/source_map.rs index 43a31722707..d9c87ac0ba8 100644 --- a/compiler/rustc_span/src/source_map.rs +++ b/compiler/rustc_span/src/source_map.rs @@ -438,7 +438,11 @@ impl SourceMap { } } - fn span_to_string(&self, sp: Span, filename_display_pref: FileNameDisplayPreference) -> String { + pub fn span_to_string( + &self, + sp: Span, + filename_display_pref: FileNameDisplayPreference, + ) -> String { if self.files.borrow().source_files.is_empty() || sp.is_dummy() { return "no-location".to_string(); } @@ -446,12 +450,15 @@ impl SourceMap { let lo = self.lookup_char_pos(sp.lo()); let hi = self.lookup_char_pos(sp.hi()); format!( - "{}:{}:{}: {}:{}", + "{}:{}:{}{}", lo.file.name.display(filename_display_pref), lo.line, lo.col.to_usize() + 1, - hi.line, - hi.col.to_usize() + 1, + if let FileNameDisplayPreference::Short = filename_display_pref { + String::new() + } else { + format!(": {}:{}", hi.line, hi.col.to_usize() + 1) + } ) } @@ -941,7 +948,7 @@ impl SourceMap { /// Otherwise, the span reached to limit is returned. pub fn span_look_ahead(&self, span: Span, expect: Option<&str>, limit: Option<usize>) -> Span { let mut sp = span; - for _ in 0..limit.unwrap_or(100 as usize) { + for _ in 0..limit.unwrap_or(100_usize) { sp = self.next_point(sp); if let Ok(ref snippet) = self.span_to_snippet(sp) { if expect.map_or(false, |es| snippet == es) { @@ -1150,7 +1157,7 @@ impl FilePathMapping { // NOTE: We are iterating over the mapping entries from last to first // because entries specified later on the command line should // take precedence. - for &(ref from, ref to) in mapping.iter().rev() { + for (from, to) in mapping.iter().rev() { debug!("Trying to apply {from:?} => {to:?}"); if let Ok(rest) = path.strip_prefix(from) { diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index 85d416c43f9..ace095736c9 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -827,6 +827,7 @@ symbols! { item_like_imports, iter, iter_repeat, + iterator_collect_fn, kcfi, keyword, kind, diff --git a/compiler/rustc_symbol_mangling/src/legacy.rs b/compiler/rustc_symbol_mangling/src/legacy.rs index c60a2f4671d..a59c9011ab2 100644 --- a/compiler/rustc_symbol_mangling/src/legacy.rs +++ b/compiler/rustc_symbol_mangling/src/legacy.rs @@ -216,8 +216,7 @@ impl<'tcx> Printer<'tcx> for &mut SymbolPrinter<'tcx> { match *ty.kind() { // Print all nominal types as paths (unlike `pretty_print_type`). ty::FnDef(def_id, substs) - | ty::Opaque(def_id, substs) - | ty::Projection(ty::ProjectionTy { item_def_id: def_id, substs }) + | ty::Alias(_, ty::AliasTy { def_id, substs, .. }) | ty::Closure(def_id, substs) | ty::Generator(def_id, substs, _) => self.print_def_path(def_id, substs), @@ -287,11 +286,7 @@ impl<'tcx> Printer<'tcx> for &mut SymbolPrinter<'tcx> { // Similar to `pretty_path_qualified`, but for the other // types that are printed as paths (see `print_type` above). match self_ty.kind() { - ty::FnDef(..) - | ty::Opaque(..) - | ty::Projection(_) - | ty::Closure(..) - | ty::Generator(..) + ty::FnDef(..) | ty::Alias(..) | ty::Closure(..) | ty::Generator(..) if trait_ref.is_none() => { self.print_type(self_ty) diff --git a/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs b/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs index 87128e0f893..c9ddb084d63 100644 --- a/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs +++ b/compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs @@ -240,7 +240,7 @@ fn encode_predicate<'tcx>( s.push_str(&encode_substs(tcx, trait_ref.substs, dict, options)); } ty::ExistentialPredicate::Projection(projection) => { - let name = encode_ty_name(tcx, projection.item_def_id); + let name = encode_ty_name(tcx, projection.def_id); let _ = write!(s, "u{}{}", name.len(), &name); s.push_str(&encode_substs(tcx, projection.substs, dict, options)); match projection.term.unpack() { @@ -646,10 +646,9 @@ fn encode_ty<'tcx>( | ty::Error(..) | ty::GeneratorWitness(..) | ty::Infer(..) - | ty::Opaque(..) + | ty::Alias(..) | ty::Param(..) - | ty::Placeholder(..) - | ty::Projection(..) => { + | ty::Placeholder(..) => { bug!("encode_ty: unexpected `{:?}`", ty.kind()); } }; @@ -799,10 +798,9 @@ fn transform_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, options: TransformTyOptio | ty::Error(..) | ty::GeneratorWitness(..) | ty::Infer(..) - | ty::Opaque(..) + | ty::Alias(..) | ty::Param(..) - | ty::Placeholder(..) - | ty::Projection(..) => { + | ty::Placeholder(..) => { bug!("transform_ty: unexpected `{:?}`", ty.kind()); } } diff --git a/compiler/rustc_symbol_mangling/src/v0.rs b/compiler/rustc_symbol_mangling/src/v0.rs index 2cca480f271..4285aa62cb9 100644 --- a/compiler/rustc_symbol_mangling/src/v0.rs +++ b/compiler/rustc_symbol_mangling/src/v0.rs @@ -439,8 +439,7 @@ impl<'tcx> Printer<'tcx> for &mut SymbolMangler<'tcx> { // Mangle all nominal types as paths. ty::Adt(ty::AdtDef(Interned(&ty::AdtDefData { did: def_id, .. }, _)), substs) | ty::FnDef(def_id, substs) - | ty::Opaque(def_id, substs) - | ty::Projection(ty::ProjectionTy { item_def_id: def_id, substs }) + | ty::Alias(_, ty::AliasTy { def_id, substs, .. }) | ty::Closure(def_id, substs) | ty::Generator(def_id, substs, _) => { self = self.print_def_path(def_id, substs)?; @@ -544,7 +543,7 @@ impl<'tcx> Printer<'tcx> for &mut SymbolMangler<'tcx> { cx = cx.print_def_path(trait_ref.def_id, trait_ref.substs)?; } ty::ExistentialPredicate::Projection(projection) => { - let name = cx.tcx.associated_item(projection.item_def_id).name; + let name = cx.tcx.associated_item(projection.def_id).name; cx.push("p"); cx.push_ident(name.as_str()); cx = match projection.term.unpack() { diff --git a/compiler/rustc_target/src/spec/apple_base.rs b/compiler/rustc_target/src/spec/apple_base.rs index fc6a2edabb7..44644c4733e 100644 --- a/compiler/rustc_target/src/spec/apple_base.rs +++ b/compiler/rustc_target/src/spec/apple_base.rs @@ -81,7 +81,7 @@ fn pre_link_args(os: &'static str, arch: Arch, abi: &'static str) -> LinkArgs { _ => os.into(), }; - let platform_version: StaticCow<str> = match os.as_ref() { + let platform_version: StaticCow<str> = match os { "ios" => ios_lld_platform_version(), "tvos" => tvos_lld_platform_version(), "watchos" => watchos_lld_platform_version(), diff --git a/compiler/rustc_target/src/spec/powerpc64_ibm_aix.rs b/compiler/rustc_target/src/spec/powerpc64_ibm_aix.rs index e3eb9bccd5e..34934379c7e 100644 --- a/compiler/rustc_target/src/spec/powerpc64_ibm_aix.rs +++ b/compiler/rustc_target/src/spec/powerpc64_ibm_aix.rs @@ -5,12 +5,7 @@ pub fn target() -> Target { base.max_atomic_width = Some(64); base.add_pre_link_args( LinkerFlavor::Unix(Cc::No), - &[ - "-b64".into(), - "-bpT:0x100000000".into(), - "-bpD:0x110000000".into(), - "-bcdtors:all:0:s".into(), - ], + &["-b64", "-bpT:0x100000000", "-bpD:0x110000000", "-bcdtors:all:0:s"], ); Target { diff --git a/compiler/rustc_trait_selection/src/traits/auto_trait.rs b/compiler/rustc_trait_selection/src/traits/auto_trait.rs index 8e04da4f9be..aef2f8ff991 100644 --- a/compiler/rustc_trait_selection/src/traits/auto_trait.rs +++ b/compiler/rustc_trait_selection/src/traits/auto_trait.rs @@ -579,14 +579,14 @@ impl<'tcx> AutoTraitFinder<'tcx> { pub fn is_of_param(&self, ty: Ty<'_>) -> bool { match ty.kind() { ty::Param(_) => true, - ty::Projection(p) => self.is_of_param(p.self_ty()), + ty::Alias(ty::Projection, p) => self.is_of_param(p.self_ty()), _ => false, } } fn is_self_referential_projection(&self, p: ty::PolyProjectionPredicate<'_>) -> bool { if let Some(ty) = p.term().skip_binder().ty() { - matches!(ty.kind(), ty::Projection(proj) if proj == &p.skip_binder().projection_ty) + matches!(ty.kind(), ty::Alias(ty::Projection, proj) if proj == &p.skip_binder().projection_ty) } else { false } diff --git a/compiler/rustc_trait_selection/src/traits/coherence.rs b/compiler/rustc_trait_selection/src/traits/coherence.rs index 899e30275a0..7c569621cfe 100644 --- a/compiler/rustc_trait_selection/src/traits/coherence.rs +++ b/compiler/rustc_trait_selection/src/traits/coherence.rs @@ -659,7 +659,7 @@ impl<'tcx> TypeVisitor<'tcx> for OrphanChecker<'tcx> { | ty::RawPtr(..) | ty::Never | ty::Tuple(..) - | ty::Projection(..) => self.found_non_local_ty(ty), + | ty::Alias(ty::Projection, ..) => self.found_non_local_ty(ty), ty::Param(..) => self.found_param_ty(ty), @@ -704,7 +704,7 @@ impl<'tcx> TypeVisitor<'tcx> for OrphanChecker<'tcx> { ); ControlFlow::Break(OrphanCheckEarlyExit::LocalTy(ty)) } - ty::Opaque(..) => { + ty::Alias(ty::Opaque, ..) => { // This merits some explanation. // Normally, opaque types are not involved when performing // coherence checking, since it is illegal to directly diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/ambiguity.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/ambiguity.rs index 752b53fbc3f..0c1717cff33 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/ambiguity.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/ambiguity.rs @@ -1,52 +1,101 @@ use rustc_hir::def_id::DefId; -use rustc_infer::infer::InferCtxt; +use rustc_infer::infer::{InferCtxt, LateBoundRegionConversionTime}; +use rustc_infer::traits::util::elaborate_predicates_with_span; use rustc_infer::traits::{Obligation, ObligationCause, TraitObligation}; -use rustc_span::DUMMY_SP; +use rustc_middle::ty; +use rustc_span::{Span, DUMMY_SP}; use crate::traits::ObligationCtxt; +pub enum Ambiguity { + DefId(DefId), + ParamEnv(Span), +} + pub fn recompute_applicable_impls<'tcx>( infcx: &InferCtxt<'tcx>, obligation: &TraitObligation<'tcx>, -) -> Vec<DefId> { +) -> Vec<Ambiguity> { let tcx = infcx.tcx; let param_env = obligation.param_env; - let dummy_cause = ObligationCause::dummy(); + let impl_may_apply = |impl_def_id| { let ocx = ObligationCtxt::new_in_snapshot(infcx); let placeholder_obligation = infcx.replace_bound_vars_with_placeholders(obligation.predicate); let obligation_trait_ref = - ocx.normalize(&dummy_cause, param_env, placeholder_obligation.trait_ref); + ocx.normalize(&ObligationCause::dummy(), param_env, placeholder_obligation.trait_ref); let impl_substs = infcx.fresh_substs_for_item(DUMMY_SP, impl_def_id); let impl_trait_ref = tcx.bound_impl_trait_ref(impl_def_id).unwrap().subst(tcx, impl_substs); let impl_trait_ref = ocx.normalize(&ObligationCause::dummy(), param_env, impl_trait_ref); - if let Err(_) = ocx.eq(&dummy_cause, param_env, obligation_trait_ref, impl_trait_ref) { + if let Err(_) = + ocx.eq(&ObligationCause::dummy(), param_env, obligation_trait_ref, impl_trait_ref) + { return false; } let impl_predicates = tcx.predicates_of(impl_def_id).instantiate(tcx, impl_substs); - ocx.register_obligations( - impl_predicates - .predicates - .iter() - .map(|&predicate| Obligation::new(tcx, dummy_cause.clone(), param_env, predicate)), + ocx.register_obligations(impl_predicates.predicates.iter().map(|&predicate| { + Obligation::new(tcx, ObligationCause::dummy(), param_env, predicate) + })); + + ocx.select_where_possible().is_empty() + }; + + let param_env_candidate_may_apply = |poly_trait_predicate: ty::PolyTraitPredicate<'tcx>| { + let ocx = ObligationCtxt::new_in_snapshot(infcx); + let placeholder_obligation = + infcx.replace_bound_vars_with_placeholders(obligation.predicate); + let obligation_trait_ref = + ocx.normalize(&ObligationCause::dummy(), param_env, placeholder_obligation.trait_ref); + + let param_env_predicate = infcx.replace_bound_vars_with_fresh_vars( + DUMMY_SP, + LateBoundRegionConversionTime::HigherRankedType, + poly_trait_predicate, ); + let param_env_trait_ref = + ocx.normalize(&ObligationCause::dummy(), param_env, param_env_predicate.trait_ref); + + if let Err(_) = + ocx.eq(&ObligationCause::dummy(), param_env, obligation_trait_ref, param_env_trait_ref) + { + return false; + } ocx.select_where_possible().is_empty() }; - let mut impls = Vec::new(); + let mut ambiguities = Vec::new(); + tcx.for_each_relevant_impl( obligation.predicate.def_id(), obligation.predicate.skip_binder().trait_ref.self_ty(), |impl_def_id| { - if infcx.probe(move |_snapshot| impl_may_apply(impl_def_id)) { - impls.push(impl_def_id) + if infcx.probe(|_| impl_may_apply(impl_def_id)) { + ambiguities.push(Ambiguity::DefId(impl_def_id)) } }, ); - impls + + let predicates = + tcx.predicates_of(obligation.cause.body_id.owner.to_def_id()).instantiate_identity(tcx); + for obligation in + elaborate_predicates_with_span(tcx, std::iter::zip(predicates.predicates, predicates.spans)) + { + let kind = obligation.predicate.kind(); + if let ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) = kind.skip_binder() + && param_env_candidate_may_apply(kind.rebind(trait_pred)) + { + if kind.rebind(trait_pred.trait_ref) == ty::TraitRef::identity(tcx, trait_pred.def_id()) { + ambiguities.push(Ambiguity::ParamEnv(tcx.def_span(trait_pred.def_id()))) + } else { + ambiguities.push(Ambiguity::ParamEnv(obligation.cause.span)) + } + } + } + + ambiguities } diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/method_chain.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/method_chain.rs new file mode 100644 index 00000000000..cb373d65772 --- /dev/null +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/method_chain.rs @@ -0,0 +1,74 @@ +use crate::infer::InferCtxt; + +use rustc_middle::ty::error::TypeError; +use rustc_middle::ty::relate::{self, Relate, RelateResult, TypeRelation}; +use rustc_middle::ty::{self, Ty, TyCtxt}; + +pub struct CollectAllMismatches<'a, 'tcx> { + pub infcx: &'a InferCtxt<'tcx>, + pub param_env: ty::ParamEnv<'tcx>, + pub errors: Vec<TypeError<'tcx>>, +} + +impl<'a, 'tcx> TypeRelation<'tcx> for CollectAllMismatches<'a, 'tcx> { + fn tag(&self) -> &'static str { + "CollectAllMismatches" + } + fn tcx(&self) -> TyCtxt<'tcx> { + self.infcx.tcx + } + fn intercrate(&self) -> bool { + false + } + fn param_env(&self) -> ty::ParamEnv<'tcx> { + self.param_env + } + fn a_is_expected(&self) -> bool { + true + } // irrelevant + fn mark_ambiguous(&mut self) { + bug!() + } + fn relate_with_variance<T: Relate<'tcx>>( + &mut self, + _: ty::Variance, + _: ty::VarianceDiagInfo<'tcx>, + a: T, + b: T, + ) -> RelateResult<'tcx, T> { + self.relate(a, b) + } + fn regions( + &mut self, + a: ty::Region<'tcx>, + _b: ty::Region<'tcx>, + ) -> RelateResult<'tcx, ty::Region<'tcx>> { + Ok(a) + } + fn tys(&mut self, a: Ty<'tcx>, b: Ty<'tcx>) -> RelateResult<'tcx, Ty<'tcx>> { + if a == b || matches!(a.kind(), ty::Infer(_)) || matches!(b.kind(), ty::Infer(_)) { + return Ok(a); + } + relate::super_relate_tys(self, a, b).or_else(|e| { + self.errors.push(e); + Ok(a) + }) + } + fn consts( + &mut self, + a: ty::Const<'tcx>, + b: ty::Const<'tcx>, + ) -> RelateResult<'tcx, ty::Const<'tcx>> { + if a == b { + return Ok(a); + } + relate::super_relate_consts(self, a, b) // could do something similar here for constants! + } + fn binders<T: Relate<'tcx>>( + &mut self, + a: ty::Binder<'tcx, T>, + b: ty::Binder<'tcx, T>, + ) -> RelateResult<'tcx, ty::Binder<'tcx, T>> { + Ok(a.rebind(self.relate(a.skip_binder(), b.skip_binder())?)) + } +} diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs index 82449a36b1d..2dd2c568bab 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/mod.rs @@ -1,4 +1,5 @@ mod ambiguity; +pub mod method_chain; pub mod on_unimplemented; pub mod suggestions; @@ -34,14 +35,14 @@ use rustc_middle::traits::select::OverflowError; use rustc_middle::ty::abstract_const::NotConstEvaluatable; use rustc_middle::ty::error::ExpectedFound; use rustc_middle::ty::fold::{TypeFolder, TypeSuperFoldable}; -use rustc_middle::ty::print::{FmtPrinter, Print}; +use rustc_middle::ty::print::{with_forced_trimmed_paths, FmtPrinter, Print}; use rustc_middle::ty::{ self, SubtypePredicate, ToPolyTraitRef, ToPredicate, TraitRef, Ty, TyCtxt, TypeFoldable, TypeVisitable, }; use rustc_session::Limit; use rustc_span::def_id::LOCAL_CRATE; -use rustc_span::symbol::{kw, sym}; +use rustc_span::symbol::sym; use rustc_span::{ExpnKind, Span, DUMMY_SP}; use std::fmt; use std::iter; @@ -536,7 +537,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { |err| { self.note_obligation_cause_code( err, - &predicate, + predicate, obligation.param_env, obligation.cause.code(), &mut vec![], @@ -979,6 +980,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { trait_ref, obligation.cause.body_id, &mut err, + true, ) { // This is *almost* equivalent to // `obligation.cause.code().peel_derives()`, but it gives us the @@ -1014,6 +1016,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { trait_ref, obligation.cause.body_id, &mut err, + true, ); } } @@ -1033,7 +1036,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { && self.fallback_has_occurred { let predicate = trait_predicate.map_bound(|trait_pred| { - trait_pred.with_self_type(self.tcx, self.tcx.mk_unit()) + trait_pred.with_self_ty(self.tcx, self.tcx.mk_unit()) }); let unit_obligation = obligation.with(tcx, predicate); if self.predicate_may_hold(&unit_obligation) { @@ -1233,6 +1236,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { _ => None, }; + let found_node = found_did.and_then(|did| self.tcx.hir().get_if_local(did)); let found_span = found_did.and_then(|did| self.tcx.hir().span_if_local(did)); if self.reported_closure_mismatch.borrow().contains(&(span, found_span)) { @@ -1286,6 +1290,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { found_trait_ref, expected_trait_ref, obligation.cause.code(), + found_node, ) } else { let (closure_span, closure_arg_span, found) = found_did @@ -1431,6 +1436,7 @@ trait InferCtxtPrivExt<'tcx> { trait_ref: ty::PolyTraitRef<'tcx>, body_id: hir::HirId, err: &mut Diagnostic, + other: bool, ) -> bool; /// Gets the parent trait chain start @@ -1481,7 +1487,7 @@ trait InferCtxtPrivExt<'tcx> { fn annotate_source_of_ambiguity( &self, err: &mut Diagnostic, - impls: &[DefId], + impls: &[ambiguity::Ambiguity], predicate: ty::Predicate<'tcx>, ); @@ -1587,7 +1593,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { { self.note_obligation_cause_code( &mut diag, - &error.obligation.predicate, + error.obligation.predicate, error.obligation.param_env, code, &mut vec![], @@ -1630,18 +1636,30 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { infer::LateBoundRegionConversionTime::HigherRankedType, bound_predicate.rebind(data), ); - let normalized_ty = ocx.normalize( - &obligation.cause, - obligation.param_env, - self.tcx - .mk_projection(data.projection_ty.item_def_id, data.projection_ty.substs), - ); + let unnormalized_term = match data.term.unpack() { + ty::TermKind::Ty(_) => self + .tcx + .mk_projection(data.projection_ty.def_id, data.projection_ty.substs) + .into(), + ty::TermKind::Const(ct) => self + .tcx + .mk_const( + ty::UnevaluatedConst { + def: ty::WithOptConstParam::unknown(data.projection_ty.def_id), + substs: data.projection_ty.substs, + }, + ct.ty(), + ) + .into(), + }; + let normalized_term = + ocx.normalize(&obligation.cause, obligation.param_env, unnormalized_term); debug!(?obligation.cause, ?obligation.param_env); - debug!(?normalized_ty, data.ty = ?data.term); + debug!(?normalized_term, data.ty = ?data.term); - let is_normalized_ty_expected = !matches!( + let is_normalized_term_expected = !matches!( obligation.cause.code().peel_derives(), ObligationCauseCode::ItemObligation(_) | ObligationCauseCode::BindingObligation(_, _) @@ -1650,7 +1668,6 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { | ObligationCauseCode::ObjectCastObligation(..) | ObligationCauseCode::OpaqueType ); - let expected_ty = data.term.ty().unwrap_or_else(|| self.tcx.ty_error()); // constrain inference variables a bit more to nested obligations from normalize so // we can have more helpful errors. @@ -1659,11 +1676,11 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { if let Err(new_err) = ocx.eq_exp( &obligation.cause, obligation.param_env, - is_normalized_ty_expected, - normalized_ty, - expected_ty, + is_normalized_term_expected, + normalized_term, + data.term, ) { - (Some((data, is_normalized_ty_expected, normalized_ty, expected_ty)), new_err) + (Some((data, is_normalized_term_expected, normalized_term, data.term)), new_err) } else { (None, error.err) } @@ -1672,12 +1689,8 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { }; let msg = values - .and_then(|(predicate, _, normalized_ty, expected_ty)| { - self.maybe_detailed_projection_msg( - predicate, - normalized_ty.into(), - expected_ty.into(), - ) + .and_then(|(predicate, _, normalized_term, expected_term)| { + self.maybe_detailed_projection_msg(predicate, normalized_term, expected_term) }) .unwrap_or_else(|| format!("type mismatch resolving `{}`", predicate)); let mut diag = struct_span_err!(self.tcx.sess, obligation.cause.span, E0271, "{msg}"); @@ -1685,10 +1698,10 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let secondary_span = match predicate.kind().skip_binder() { ty::PredicateKind::Clause(ty::Clause::Projection(proj)) => self .tcx - .opt_associated_item(proj.projection_ty.item_def_id) + .opt_associated_item(proj.projection_ty.def_id) .and_then(|trait_assoc_item| { self.tcx - .trait_of_item(proj.projection_ty.item_def_id) + .trait_of_item(proj.projection_ty.def_id) .map(|id| (trait_assoc_item, id)) }) .and_then(|(trait_assoc_item, id)| { @@ -1744,21 +1757,26 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let trait_def_id = pred.projection_ty.trait_def_id(self.tcx); let self_ty = pred.projection_ty.self_ty(); - if Some(pred.projection_ty.item_def_id) == self.tcx.lang_items().fn_once_output() { - Some(format!( - "expected `{self_ty}` to be a {fn_kind} that returns `{expected_ty}`, but it returns `{normalized_ty}`", - fn_kind = self_ty.prefix_string(self.tcx) - )) - } else if Some(trait_def_id) == self.tcx.lang_items().future_trait() { - Some(format!( - "expected `{self_ty}` to be a future that resolves to `{expected_ty}`, but it resolves to `{normalized_ty}`" - )) - } else if Some(trait_def_id) == self.tcx.get_diagnostic_item(sym::Iterator) { - Some(format!( - "expected `{self_ty}` to be an iterator that yields `{expected_ty}`, but it yields `{normalized_ty}`" - )) - } else { - None + with_forced_trimmed_paths! { + if Some(pred.projection_ty.def_id) == self.tcx.lang_items().fn_once_output() { + Some(format!( + "expected `{self_ty}` to be a {fn_kind} that returns `{expected_ty}`, but it \ + returns `{normalized_ty}`", + fn_kind = self_ty.prefix_string(self.tcx) + )) + } else if Some(trait_def_id) == self.tcx.lang_items().future_trait() { + Some(format!( + "expected `{self_ty}` to be a future that resolves to `{expected_ty}`, but it \ + resolves to `{normalized_ty}`" + )) + } else if Some(trait_def_id) == self.tcx.get_diagnostic_item(sym::Iterator) { + Some(format!( + "expected `{self_ty}` to be an iterator that yields `{expected_ty}`, but it \ + yields `{normalized_ty}`" + )) + } else { + None + } } } @@ -1787,8 +1805,8 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { ty::Closure(..) => Some(9), ty::Tuple(..) => Some(10), ty::Param(..) => Some(11), - ty::Projection(..) => Some(12), - ty::Opaque(..) => Some(13), + ty::Alias(ty::Projection, ..) => Some(12), + ty::Alias(ty::Opaque, ..) => Some(13), ty::Never => Some(14), ty::Adt(..) => Some(15), ty::Generator(..) => Some(16), @@ -1886,7 +1904,9 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { trait_ref: ty::PolyTraitRef<'tcx>, body_id: hir::HirId, err: &mut Diagnostic, + other: bool, ) -> bool { + let other = if other { "other " } else { "" }; let report = |mut candidates: Vec<TraitRef<'tcx>>, err: &mut Diagnostic| { candidates.sort(); candidates.dedup(); @@ -1937,7 +1957,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { candidates.dedup(); let end = if candidates.len() <= 9 { candidates.len() } else { 8 }; err.help(&format!( - "the following other types implement trait `{}`:{}{}", + "the following {other}types implement trait `{}`:{}{}", trait_ref.print_only_trait_path(), candidates[..end].join(""), if len > 9 { format!("\nand {} others", len - 8) } else { String::new() } @@ -2078,8 +2098,8 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { param_env: ty::ParamEnv<'tcx>, trait_ref_and_ty: ty::Binder<'tcx, (ty::TraitPredicate<'tcx>, Ty<'tcx>)>, ) -> PredicateObligation<'tcx> { - let trait_pred = trait_ref_and_ty - .map_bound(|(tr, new_self_ty)| tr.with_self_type(self.tcx, new_self_ty)); + let trait_pred = + trait_ref_and_ty.map_bound(|(tr, new_self_ty)| tr.with_self_ty(self.tcx, new_self_ty)); Obligation::new(self.tcx, ObligationCause::dummy(), param_env, trait_pred) } @@ -2173,19 +2193,40 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let mut selcx = SelectionContext::new(&self); match selcx.select_from_obligation(&obligation) { Ok(None) => { - let impls = ambiguity::recompute_applicable_impls(self.infcx, &obligation); + let ambiguities = + ambiguity::recompute_applicable_impls(self.infcx, &obligation); let has_non_region_infer = trait_ref.skip_binder().substs.types().any(|t| !t.is_ty_infer()); // It doesn't make sense to talk about applicable impls if there are more // than a handful of them. - if impls.len() > 1 && impls.len() < 5 && has_non_region_infer { - self.annotate_source_of_ambiguity(&mut err, &impls, predicate); + if ambiguities.len() > 1 && ambiguities.len() < 10 && has_non_region_infer { + if self.tainted_by_errors().is_some() && subst.is_none() { + // If `subst.is_none()`, then this is probably two param-env + // candidates or impl candidates that are equal modulo lifetimes. + // Therefore, if we've already emitted an error, just skip this + // one, since it's not particularly actionable. + err.cancel(); + return; + } + self.annotate_source_of_ambiguity(&mut err, &ambiguities, predicate); } else { if self.tainted_by_errors().is_some() { err.cancel(); return; } err.note(&format!("cannot satisfy `{}`", predicate)); + let impl_candidates = self.find_similar_impl_candidates( + predicate.to_opt_poly_trait_pred().unwrap(), + ); + if impl_candidates.len() < 10 { + self.report_similar_impl_candidates( + impl_candidates, + trait_ref, + body_id.map(|id| id.hir_id).unwrap_or(obligation.cause.body_id), + &mut err, + false, + ); + } } } _ => { @@ -2197,60 +2238,10 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } } - if let ObligationCauseCode::ItemObligation(def_id) | ObligationCauseCode::ExprItemObligation(def_id, ..) = *obligation.cause.code() { - self.suggest_fully_qualified_path(&mut err, def_id, span, trait_ref.def_id()); - } else if let Ok(snippet) = &self.tcx.sess.source_map().span_to_snippet(span) - && let ObligationCauseCode::BindingObligation(def_id, _) | ObligationCauseCode::ExprBindingObligation(def_id, ..) - = *obligation.cause.code() + if let ObligationCauseCode::ItemObligation(def_id) + | ObligationCauseCode::ExprItemObligation(def_id, ..) = *obligation.cause.code() { - let generics = self.tcx.generics_of(def_id); - if generics.params.iter().any(|p| p.name != kw::SelfUpper) - && !snippet.ends_with('>') - && !generics.has_impl_trait() - && !self.tcx.is_fn_trait(def_id) - { - // FIXME: To avoid spurious suggestions in functions where type arguments - // where already supplied, we check the snippet to make sure it doesn't - // end with a turbofish. Ideally we would have access to a `PathSegment` - // instead. Otherwise we would produce the following output: - // - // error[E0283]: type annotations needed - // --> $DIR/issue-54954.rs:3:24 - // | - // LL | const ARR_LEN: usize = Tt::const_val::<[i8; 123]>(); - // | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - // | | - // | cannot infer type - // | help: consider specifying the type argument - // | in the function call: - // | `Tt::const_val::<[i8; 123]>::<T>` - // ... - // LL | const fn const_val<T: Sized>() -> usize { - // | - required by this bound in `Tt::const_val` - // | - // = note: cannot satisfy `_: Tt` - - // Clear any more general suggestions in favor of our specific one - err.clear_suggestions(); - - err.span_suggestion_verbose( - span.shrink_to_hi(), - &format!( - "consider specifying the type argument{} in the function call", - pluralize!(generics.params.len()), - ), - format!( - "::<{}>", - generics - .params - .iter() - .map(|p| p.name.to_string()) - .collect::<Vec<String>>() - .join(", ") - ), - Applicability::HasPlaceholders, - ); - } + self.suggest_fully_qualified_path(&mut err, def_id, span, trait_ref.def_id()); } if let (Some(body_id), Some(ty::subst::GenericArgKind::Type(_))) = @@ -2321,18 +2312,19 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let trait_impls = self.tcx.trait_impls_of(data.trait_ref.def_id); if trait_impls.blanket_impls().is_empty() - && let Some((impl_ty, _)) = trait_impls.non_blanket_impls().iter().next() - && let Some(impl_def_id) = impl_ty.def() { - let message = if trait_impls.non_blanket_impls().len() == 1 { + && let Some(impl_def_id) = trait_impls.non_blanket_impls().values().flatten().next() + { + let non_blanket_impl_count = trait_impls.non_blanket_impls().values().flatten().count(); + let message = if non_blanket_impl_count == 1 { "use the fully-qualified path to the only available implementation".to_string() } else { format!( "use a fully-qualified path to a specific available implementation ({} found)", - trait_impls.non_blanket_impls().len() + non_blanket_impl_count ) }; let mut suggestions = vec![( - trait_path_segment.ident.span.shrink_to_lo(), + path.span.shrink_to_lo(), format!("<{} as ", self.tcx.type_of(impl_def_id)) )]; if let Some(generic_arg) = trait_path_segment.args { @@ -2465,21 +2457,30 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { fn annotate_source_of_ambiguity( &self, err: &mut Diagnostic, - impls: &[DefId], + ambiguities: &[ambiguity::Ambiguity], predicate: ty::Predicate<'tcx>, ) { let mut spans = vec![]; let mut crates = vec![]; let mut post = vec![]; - for def_id in impls { - match self.tcx.span_of_impl(*def_id) { - Ok(span) => spans.push(span), - Err(name) => { - crates.push(name); - if let Some(header) = to_pretty_impl_header(self.tcx, *def_id) { - post.push(header); + let mut has_param_env = false; + for ambiguity in ambiguities { + match ambiguity { + ambiguity::Ambiguity::DefId(impl_def_id) => { + match self.tcx.span_of_impl(*impl_def_id) { + Ok(span) => spans.push(span), + Err(name) => { + crates.push(name); + if let Some(header) = to_pretty_impl_header(self.tcx, *impl_def_id) { + post.push(header); + } + } } } + ambiguity::Ambiguity::ParamEnv(span) => { + has_param_env = true; + spans.push(*span); + } } } let mut crate_names: Vec<_> = crates.iter().map(|n| format!("`{}`", n)).collect(); @@ -2503,7 +2504,11 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { return; } - let msg = format!("multiple `impl`s satisfying `{}` found", predicate); + let msg = format!( + "multiple `impl`s{} satisfying `{}` found", + if has_param_env { " or `where` clauses" } else { "" }, + predicate + ); let post = if post.len() > 1 || (post.len() == 1 && post[0].contains('\n')) { format!(":\n{}", post.iter().map(|p| format!("- {}", p)).collect::<Vec<_>>().join("\n"),) } else if post.len() == 1 { @@ -2602,7 +2607,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { if !self.maybe_note_obligation_cause_for_async_await(err, obligation) { self.note_obligation_cause_code( err, - &obligation.predicate, + obligation.predicate, obligation.param_env, obligation.cause.code(), &mut vec![], diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs index 9f5814a6bda..d47a5ea3e37 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs @@ -1,8 +1,10 @@ +// ignore-tidy-filelength + use super::{DefIdOrName, Obligation, ObligationCause, ObligationCauseCode, PredicateObligation}; use crate::autoderef::Autoderef; use crate::infer::InferCtxt; -use crate::traits::NormalizeExt; +use crate::traits::{NormalizeExt, ObligationCtxt}; use hir::def::CtorOf; use hir::HirId; @@ -22,17 +24,20 @@ use rustc_infer::infer::error_reporting::TypeErrCtxt; use rustc_infer::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind}; use rustc_infer::infer::{InferOk, LateBoundRegionConversionTime}; use rustc_middle::hir::map; +use rustc_middle::ty::error::TypeError::{self, Sorts}; +use rustc_middle::ty::relate::TypeRelation; use rustc_middle::ty::{ self, suggest_arbitrary_trait_bound, suggest_constraining_type_param, AdtKind, DefIdTree, - GeneratorDiagnosticData, GeneratorInteriorTypeCause, Infer, InferTy, IsSuggestable, - ToPredicate, Ty, TyCtxt, TypeFoldable, TypeFolder, TypeSuperFoldable, TypeVisitable, + GeneratorDiagnosticData, GeneratorInteriorTypeCause, Infer, InferTy, InternalSubsts, + IsSuggestable, ToPredicate, Ty, TyCtxt, TypeAndMut, TypeFoldable, TypeFolder, + TypeSuperFoldable, TypeVisitable, TypeckResults, }; -use rustc_middle::ty::{TypeAndMut, TypeckResults}; use rustc_span::symbol::{sym, Ident, Symbol}; use rustc_span::{BytePos, DesugaringKind, ExpnKind, Span, DUMMY_SP}; use rustc_target::spec::abi; -use std::fmt; +use std::ops::Deref; +use super::method_chain::CollectAllMismatches; use super::InferCtxtPrivExt; use crate::infer::InferCtxtExt as _; use crate::traits::query::evaluate_obligation::InferCtxtExt as _; @@ -254,6 +259,7 @@ pub trait TypeErrCtxtExt<'tcx> { found: ty::PolyTraitRef<'tcx>, expected: ty::PolyTraitRef<'tcx>, cause: &ObligationCauseCode<'tcx>, + found_node: Option<Node<'_>>, ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed>; fn note_conflicting_closure_bounds( @@ -292,13 +298,13 @@ pub trait TypeErrCtxtExt<'tcx> { fn note_obligation_cause_code<T>( &self, err: &mut Diagnostic, - predicate: &T, + predicate: T, param_env: ty::ParamEnv<'tcx>, cause_code: &ObligationCauseCode<'tcx>, obligated_types: &mut Vec<Ty<'tcx>>, seen_requirements: &mut FxHashSet<DefId>, ) where - T: fmt::Display + ToPredicate<'tcx>; + T: ToPredicate<'tcx>; /// Suggest to await before try: future? => future.await? fn suggest_await_before_try( @@ -329,6 +335,31 @@ pub trait TypeErrCtxtExt<'tcx> { err: &mut Diagnostic, trait_pred: ty::PolyTraitPredicate<'tcx>, ); + fn function_argument_obligation( + &self, + arg_hir_id: HirId, + err: &mut Diagnostic, + parent_code: &ObligationCauseCode<'tcx>, + param_env: ty::ParamEnv<'tcx>, + predicate: ty::Predicate<'tcx>, + call_hir_id: HirId, + ); + fn point_at_chain( + &self, + expr: &hir::Expr<'_>, + typeck_results: &TypeckResults<'tcx>, + type_diffs: Vec<TypeError<'tcx>>, + param_env: ty::ParamEnv<'tcx>, + err: &mut Diagnostic, + ); + fn probe_assoc_types_at_expr( + &self, + type_diffs: &[TypeError<'tcx>], + span: Span, + prev_ty: Ty<'tcx>, + body_id: hir::HirId, + param_env: ty::ParamEnv<'tcx>, + ) -> Vec<Option<(Span, (DefId, Ty<'tcx>))>>; } fn predicate_constraint(generics: &hir::Generics<'_>, pred: ty::Predicate<'_>) -> (Span, String) { @@ -348,7 +379,7 @@ fn suggest_restriction<'tcx>( msg: &str, err: &mut Diagnostic, fn_sig: Option<&hir::FnSig<'_>>, - projection: Option<&ty::ProjectionTy<'_>>, + projection: Option<&ty::AliasTy<'_>>, trait_pred: ty::PolyTraitPredicate<'tcx>, // When we are dealing with a trait, `super_traits` will be `Some`: // Given `trait T: A + B + C {}` @@ -474,7 +505,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let self_ty = trait_pred.skip_binder().self_ty(); let (param_ty, projection) = match self_ty.kind() { ty::Param(_) => (true, None), - ty::Projection(projection) => (false, Some(projection)), + ty::Alias(ty::Projection, projection) => (false, Some(projection)), _ => (false, None), }; @@ -673,7 +704,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { trait_pred: ty::PolyTraitPredicate<'tcx>, ) -> bool { // It only make sense when suggesting dereferences for arguments - let ObligationCauseCode::FunctionArgumentObligation { arg_hir_id, .. } = obligation.cause.code() + let ObligationCauseCode::FunctionArgumentObligation { arg_hir_id, call_hir_id, .. } = obligation.cause.code() else { return false; }; let Some(typeck_results) = &self.typeck_results else { return false; }; @@ -752,12 +783,33 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { real_trait_pred_and_base_ty, ); if self.predicate_may_hold(&obligation) { - err.span_suggestion_verbose( - span.shrink_to_lo(), - "consider dereferencing here", - "*", - Applicability::MachineApplicable, + let call_node = self.tcx.hir().get(*call_hir_id); + let msg = "consider dereferencing here"; + let is_receiver = matches!( + call_node, + Node::Expr(hir::Expr { + kind: hir::ExprKind::MethodCall(_, receiver_expr, ..), + .. + }) + if receiver_expr.hir_id == *arg_hir_id ); + if is_receiver { + err.multipart_suggestion_verbose( + msg, + vec![ + (span.shrink_to_lo(), "(*".to_string()), + (span.shrink_to_hi(), ")".to_string()), + ], + Applicability::MachineApplicable, + ) + } else { + err.span_suggestion_verbose( + span.shrink_to_lo(), + msg, + '*', + Applicability::MachineApplicable, + ) + }; return true; } } @@ -834,10 +886,10 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { fn_sig.inputs().map_bound(|inputs| &inputs[1..]), )) } - ty::Opaque(def_id, substs) => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => { self.tcx.bound_item_bounds(def_id).subst(self.tcx, substs).iter().find_map(|pred| { if let ty::PredicateKind::Clause(ty::Clause::Projection(proj)) = pred.kind().skip_binder() - && Some(proj.projection_ty.item_def_id) == self.tcx.lang_items().fn_once_output() + && Some(proj.projection_ty.def_id) == self.tcx.lang_items().fn_once_output() // args tuple will always be substs[1] && let ty::Tuple(args) = proj.projection_ty.substs.type_at(1).kind() { @@ -854,7 +906,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { ty::Dynamic(data, _, ty::Dyn) => { data.iter().find_map(|pred| { if let ty::ExistentialPredicate::Projection(proj) = pred.skip_binder() - && Some(proj.item_def_id) == self.tcx.lang_items().fn_once_output() + && Some(proj.def_id) == self.tcx.lang_items().fn_once_output() // for existential projection, substs are shifted over by 1 && let ty::Tuple(args) = proj.substs.type_at(0).kind() { @@ -871,7 +923,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { ty::Param(_) => { obligation.param_env.caller_bounds().iter().find_map(|pred| { if let ty::PredicateKind::Clause(ty::Clause::Projection(proj)) = pred.kind().skip_binder() - && Some(proj.projection_ty.item_def_id) == self.tcx.lang_items().fn_once_output() + && Some(proj.projection_ty.def_id) == self.tcx.lang_items().fn_once_output() && proj.projection_ty.self_ty() == found // args tuple will always be substs[1] && let ty::Tuple(args) = proj.projection_ty.substs.type_at(1).kind() @@ -1574,7 +1626,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let trait_obj = if has_dyn { &snippet[4..] } else { &snippet }; if only_never_return { // No return paths, probably using `panic!()` or similar. - // Suggest `-> T`, `-> impl Trait`, and if `Trait` is object safe, `-> Box<dyn Trait>`. + // Suggest `-> impl Trait`, and if `Trait` is object safe, `-> Box<dyn Trait>`. suggest_trait_object_return_type_alternatives( err, ret_ty.span, @@ -1674,6 +1726,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { found: ty::PolyTraitRef<'tcx>, expected: ty::PolyTraitRef<'tcx>, cause: &ObligationCauseCode<'tcx>, + found_node: Option<Node<'_>>, ) -> DiagnosticBuilder<'tcx, ErrorGuaranteed> { pub(crate) fn build_fn_sig_ty<'tcx>( infcx: &InferCtxt<'tcx>, @@ -1735,6 +1788,10 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { self.note_conflicting_closure_bounds(cause, &mut err); + if let Some(found_node) = found_node { + hint_missing_borrow(span, found_span, found, expected, found_node, &mut err); + } + err } @@ -1755,10 +1812,10 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { && self.tcx.is_fn_trait(trait_pred.def_id()) { let expected_self = - self.tcx.anonymize_late_bound_regions(pred.kind().rebind(trait_pred.self_ty())); + self.tcx.anonymize_bound_vars(pred.kind().rebind(trait_pred.self_ty())); let expected_substs = self .tcx - .anonymize_late_bound_regions(pred.kind().rebind(trait_pred.trait_ref.substs)); + .anonymize_bound_vars(pred.kind().rebind(trait_pred.trait_ref.substs)); // Find another predicate whose self-type is equal to the expected self type, // but whose substs don't match. @@ -1771,12 +1828,12 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { // Make sure that the self type matches // (i.e. constraining this closure) && expected_self - == self.tcx.anonymize_late_bound_regions( + == self.tcx.anonymize_bound_vars( pred.kind().rebind(trait_pred.self_ty()), ) // But the substs don't match (i.e. incompatible args) && expected_substs - != self.tcx.anonymize_late_bound_regions( + != self.tcx.anonymize_bound_vars( pred.kind().rebind(trait_pred.trait_ref.substs), ) => { @@ -2158,15 +2215,15 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { format!("does not implement `{}`", trait_pred.print_modifiers_and_trait_path()) }; - let mut explain_yield = |interior_span: Span, - yield_span: Span, - scope_span: Option<Span>| { - let mut span = MultiSpan::from_span(yield_span); - if let Ok(snippet) = source_map.span_to_snippet(interior_span) { - // #70935: If snippet contains newlines, display "the value" instead - // so that we do not emit complex diagnostics. - let snippet = &format!("`{}`", snippet); - let snippet = if snippet.contains('\n') { "the value" } else { snippet }; + let mut explain_yield = + |interior_span: Span, yield_span: Span, scope_span: Option<Span>| { + let mut span = MultiSpan::from_span(yield_span); + let snippet = match source_map.span_to_snippet(interior_span) { + // #70935: If snippet contains newlines, display "the value" instead + // so that we do not emit complex diagnostics. + Ok(snippet) if !snippet.contains('\n') => format!("`{}`", snippet), + _ => "the value".to_string(), + }; // note: future is not `Send` as this value is used across an await // --> $DIR/issue-70935-complex-spans.rs:13:9 // | @@ -2191,17 +2248,11 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { interior_span, format!("has type `{}` which {}", target_ty, trait_explanation), ); - // If available, use the scope span to annotate the drop location. - let mut scope_note = None; if let Some(scope_span) = scope_span { let scope_span = source_map.end_point(scope_span); let msg = format!("{} is later dropped here", snippet); - if source_map.is_multiline(yield_span.between(scope_span)) { - span.push_span_label(scope_span, msg); - } else { - scope_note = Some((scope_span, msg)); - } + span.push_span_label(scope_span, msg); } err.span_note( span, @@ -2210,11 +2261,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { future_or_generator, trait_explanation, an_await_or_yield ), ); - if let Some((span, msg)) = scope_note { - err.span_note(span, &msg); - } - } - }; + }; match interior_or_upvar_span { GeneratorInteriorOrUpvar::Interior(interior_span, interior_extra_info) => { if let Some((scope_span, yield_span, expr, from_awaited_ty)) = interior_extra_info { @@ -2336,7 +2383,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { debug!(?next_code); self.note_obligation_cause_code( err, - &obligation.predicate, + obligation.predicate, obligation.param_env, next_code.unwrap(), &mut Vec::new(), @@ -2347,15 +2394,16 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { fn note_obligation_cause_code<T>( &self, err: &mut Diagnostic, - predicate: &T, + predicate: T, param_env: ty::ParamEnv<'tcx>, cause_code: &ObligationCauseCode<'tcx>, obligated_types: &mut Vec<Ty<'tcx>>, seen_requirements: &mut FxHashSet<DefId>, ) where - T: fmt::Display + ToPredicate<'tcx>, + T: ToPredicate<'tcx>, { let tcx = self.tcx; + let predicate = predicate.to_predicate(tcx); match *cause_code { ObligationCauseCode::ExprAssignable | ObligationCauseCode::MatchExpressionArm { .. } @@ -2390,12 +2438,11 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { err.note("only the last element of a tuple may have a dynamically sized type"); } ObligationCauseCode::ProjectionWf(data) => { - err.note(&format!("required so that the projection `{}` is well-formed", data,)); + err.note(&format!("required so that the projection `{data}` is well-formed")); } ObligationCauseCode::ReferenceOutlivesReferent(ref_ty) => { err.note(&format!( - "required so that reference `{}` does not outlive its referent", - ref_ty, + "required so that reference `{ref_ty}` does not outlive its referent" )); } ObligationCauseCode::ObjectTypeBound(object_ty, region) => { @@ -2501,6 +2548,25 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } ObligationCauseCode::SizedArgumentType(sp) => { if let Some(span) = sp { + if let ty::PredicateKind::Clause(clause) = predicate.kind().skip_binder() + && let ty::Clause::Trait(trait_pred) = clause + && let ty::Dynamic(..) = trait_pred.self_ty().kind() + { + let span = if let Ok(snippet) = self.tcx.sess.source_map().span_to_snippet(span) + && snippet.starts_with("dyn ") + { + let pos = snippet.len() - snippet[3..].trim_start().len(); + span.with_hi(span.lo() + BytePos(pos as u32)) + } else { + span.shrink_to_lo() + }; + err.span_suggestion_verbose( + span, + "you can use `impl Trait` as the argument type", + "impl ".to_string(), + Applicability::MaybeIncorrect, + ); + } err.span_suggestion_verbose( span.shrink_to_lo(), "function arguments must have a statically known size, borrowed types \ @@ -2623,7 +2689,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { Some(ident) => err.span_note(ident.span, &msg), None => err.note(&msg), }, - ty::Opaque(def_id, _) => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }) => { // Avoid printing the future from `core::future::identity_future`, it's not helpful if tcx.parent(*def_id) == identity_future { break 'print; @@ -2689,7 +2755,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { ensure_sufficient_stack(|| { self.note_obligation_cause_code( err, - &parent_predicate, + parent_predicate, param_env, &data.parent_code, obligated_types, @@ -2700,7 +2766,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { ensure_sufficient_stack(|| { self.note_obligation_cause_code( err, - &parent_predicate, + parent_predicate, param_env, cause_code.peel_derives(), obligated_types, @@ -2809,7 +2875,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { ensure_sufficient_stack(|| { self.note_obligation_cause_code( err, - &parent_predicate, + parent_predicate, param_env, &data.parent_code, obligated_types, @@ -2824,7 +2890,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { ensure_sufficient_stack(|| { self.note_obligation_cause_code( err, - &parent_predicate, + parent_predicate, param_env, &data.parent_code, obligated_types, @@ -2836,44 +2902,16 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { arg_hir_id, call_hir_id, ref parent_code, + .. } => { - let hir = self.tcx.hir(); - if let Some(Node::Expr(expr @ hir::Expr { kind: hir::ExprKind::Block(..), .. })) = - hir.find(arg_hir_id) - { - let parent_id = hir.get_parent_item(arg_hir_id); - let typeck_results: &TypeckResults<'tcx> = match &self.typeck_results { - Some(t) if t.hir_owner == parent_id => t, - _ => self.tcx.typeck(parent_id.def_id), - }; - let expr = expr.peel_blocks(); - let ty = typeck_results.expr_ty_adjusted_opt(expr).unwrap_or(tcx.ty_error()); - let span = expr.span; - if Some(span) != err.span.primary_span() { - err.span_label( - span, - if ty.references_error() { - String::new() - } else { - format!("this tail expression is of type `{:?}`", ty) - }, - ); - } - } - if let Some(Node::Expr(hir::Expr { - kind: - hir::ExprKind::Call(hir::Expr { span, .. }, _) - | hir::ExprKind::MethodCall( - hir::PathSegment { ident: Ident { span, .. }, .. }, - .., - ), - .. - })) = hir.find(call_hir_id) - { - if Some(*span) != err.span.primary_span() { - err.span_label(*span, "required by a bound introduced by this call"); - } - } + self.function_argument_obligation( + arg_hir_id, + err, + parent_code, + param_env, + predicate, + call_hir_id, + ); ensure_sufficient_stack(|| { self.note_obligation_cause_code( err, @@ -2888,9 +2926,8 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { ObligationCauseCode::CompareImplItemObligation { trait_item_def_id, kind, .. } => { let item_name = self.tcx.item_name(trait_item_def_id); let msg = format!( - "the requirement `{}` appears on the `impl`'s {kind} `{}` but not on the \ - corresponding trait's {kind}", - predicate, item_name, + "the requirement `{predicate}` appears on the `impl`'s {kind} \ + `{item_name}` but not on the corresponding trait's {kind}", ); let sp = self .tcx @@ -2900,7 +2937,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let mut assoc_span: MultiSpan = sp.into(); assoc_span.push_span_label( sp, - format!("this trait's {kind} doesn't have the requirement `{}`", predicate), + format!("this trait's {kind} doesn't have the requirement `{predicate}`"), ); if let Some(ident) = self .tcx @@ -2919,7 +2956,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } ObligationCauseCode::OpaqueReturnType(expr_info) => { if let Some((expr_ty, expr_span)) = expr_info { - let expr_ty = self.resolve_vars_if_possible(expr_ty); + let expr_ty = with_forced_trimmed_paths!(self.ty_to_string(expr_ty)); err.span_label( expr_span, format!("return type was inferred to be `{expr_ty}` here"), @@ -2965,7 +3002,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { self.tcx.mk_projection( item_def_id, // Future::Output has no substs - self.tcx.mk_substs_trait(trait_pred.self_ty(), []), + [trait_pred.self_ty()], ) }); let InferOk { value: projection_ty, .. } = @@ -3099,6 +3136,392 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { ); } } + fn function_argument_obligation( + &self, + arg_hir_id: HirId, + err: &mut Diagnostic, + parent_code: &ObligationCauseCode<'tcx>, + param_env: ty::ParamEnv<'tcx>, + predicate: ty::Predicate<'tcx>, + call_hir_id: HirId, + ) { + let tcx = self.tcx; + let hir = tcx.hir(); + if let Some(Node::Expr(expr)) = hir.find(arg_hir_id) { + let parent_id = hir.get_parent_item(arg_hir_id); + let typeck_results: &TypeckResults<'tcx> = match &self.typeck_results { + Some(t) if t.hir_owner == parent_id => t, + _ => self.tcx.typeck(parent_id.def_id), + }; + if let hir::Expr { kind: hir::ExprKind::Block(..), .. } = expr { + let expr = expr.peel_blocks(); + let ty = typeck_results.expr_ty_adjusted_opt(expr).unwrap_or(tcx.ty_error()); + let span = expr.span; + if Some(span) != err.span.primary_span() { + err.span_label( + span, + if ty.references_error() { + String::new() + } else { + let ty = with_forced_trimmed_paths!(self.ty_to_string(ty)); + format!("this tail expression is of type `{ty}`") + }, + ); + } + } + + // FIXME: visit the ty to see if there's any closure involved, and if there is, + // check whether its evaluated return type is the same as the one corresponding + // to an associated type (as seen from `trait_pred`) in the predicate. Like in + // trait_pred `S: Sum<<Self as Iterator>::Item>` and predicate `i32: Sum<&()>` + let mut type_diffs = vec![]; + + if let ObligationCauseCode::ExprBindingObligation(def_id, _, _, idx) = parent_code.deref() + && let predicates = self.tcx.predicates_of(def_id).instantiate_identity(self.tcx) + && let Some(pred) = predicates.predicates.get(*idx) + { + if let Ok(trait_pred) = pred.kind().try_map_bound(|pred| match pred { + ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) => Ok(trait_pred), + _ => Err(()), + }) + && let Ok(trait_predicate) = predicate.kind().try_map_bound(|pred| match pred { + ty::PredicateKind::Clause(ty::Clause::Trait(trait_pred)) => Ok(trait_pred), + _ => Err(()), + }) + { + let mut c = CollectAllMismatches { + infcx: self.infcx, + param_env, + errors: vec![], + }; + if let Ok(_) = c.relate(trait_pred, trait_predicate) { + type_diffs = c.errors; + } + } else if let ty::PredicateKind::Clause( + ty::Clause::Projection(proj) + ) = pred.kind().skip_binder() + && let ty::PredicateKind::Clause( + ty::Clause::Projection(projection) + ) = predicate.kind().skip_binder() + { + type_diffs = vec![ + Sorts(ty::error::ExpectedFound { + expected: self.tcx.mk_ty(ty::Alias(ty::Projection, proj.projection_ty)), + found: projection.term.ty().unwrap(), + }), + ]; + } + } + if let hir::ExprKind::Path(hir::QPath::Resolved(None, path)) = expr.kind + && let hir::Path { res: hir::def::Res::Local(hir_id), .. } = path + && let Some(hir::Node::Pat(binding)) = self.tcx.hir().find(*hir_id) + && let parent_hir_id = self.tcx.hir().get_parent_node(binding.hir_id) + && let Some(hir::Node::Local(local)) = self.tcx.hir().find(parent_hir_id) + && let Some(binding_expr) = local.init + { + // If the expression we're calling on is a binding, we want to point at the + // `let` when talking about the type. Otherwise we'll point at every part + // of the method chain with the type. + self.point_at_chain(binding_expr, typeck_results, type_diffs, param_env, err); + } else { + self.point_at_chain(expr, typeck_results, type_diffs, param_env, err); + } + } + let call_node = hir.find(call_hir_id); + if let Some(Node::Expr(hir::Expr { + kind: hir::ExprKind::MethodCall(path, rcvr, ..), .. + })) = call_node + { + if Some(rcvr.span) == err.span.primary_span() { + err.replace_span_with(path.ident.span); + } + } + if let Some(Node::Expr(hir::Expr { + kind: + hir::ExprKind::Call(hir::Expr { span, .. }, _) + | hir::ExprKind::MethodCall(hir::PathSegment { ident: Ident { span, .. }, .. }, ..), + .. + })) = hir.find(call_hir_id) + { + if Some(*span) != err.span.primary_span() { + err.span_label(*span, "required by a bound introduced by this call"); + } + } + } + + fn point_at_chain( + &self, + expr: &hir::Expr<'_>, + typeck_results: &TypeckResults<'tcx>, + type_diffs: Vec<TypeError<'tcx>>, + param_env: ty::ParamEnv<'tcx>, + err: &mut Diagnostic, + ) { + let mut primary_spans = vec![]; + let mut span_labels = vec![]; + + let tcx = self.tcx; + + let mut print_root_expr = true; + let mut assocs = vec![]; + let mut expr = expr; + let mut prev_ty = self.resolve_vars_if_possible( + typeck_results.expr_ty_adjusted_opt(expr).unwrap_or(tcx.ty_error()), + ); + while let hir::ExprKind::MethodCall(_path_segment, rcvr_expr, _args, span) = expr.kind { + // Point at every method call in the chain with the resulting type. + // vec![1, 2, 3].iter().map(mapper).sum<i32>() + // ^^^^^^ ^^^^^^^^^^^ + expr = rcvr_expr; + let assocs_in_this_method = + self.probe_assoc_types_at_expr(&type_diffs, span, prev_ty, expr.hir_id, param_env); + assocs.push(assocs_in_this_method); + prev_ty = self.resolve_vars_if_possible( + typeck_results.expr_ty_adjusted_opt(expr).unwrap_or(tcx.ty_error()), + ); + + if let hir::ExprKind::Path(hir::QPath::Resolved(None, path)) = expr.kind + && let hir::Path { res: hir::def::Res::Local(hir_id), .. } = path + && let Some(hir::Node::Pat(binding)) = self.tcx.hir().find(*hir_id) + && let parent_hir_id = self.tcx.hir().get_parent_node(binding.hir_id) + && let Some(parent) = self.tcx.hir().find(parent_hir_id) + { + // We've reached the root of the method call chain... + if let hir::Node::Local(local) = parent + && let Some(binding_expr) = local.init + { + // ...and it is a binding. Get the binding creation and continue the chain. + expr = binding_expr; + } + if let hir::Node::Param(param) = parent { + // ...and it is a an fn argument. + let prev_ty = self.resolve_vars_if_possible( + typeck_results.node_type_opt(param.hir_id).unwrap_or(tcx.ty_error()), + ); + let assocs_in_this_method = self.probe_assoc_types_at_expr(&type_diffs, param.ty_span, prev_ty, param.hir_id, param_env); + if assocs_in_this_method.iter().any(|a| a.is_some()) { + assocs.push(assocs_in_this_method); + print_root_expr = false; + } + break; + } + } + } + // We want the type before deref coercions, otherwise we talk about `&[_]` + // instead of `Vec<_>`. + if let Some(ty) = typeck_results.expr_ty_opt(expr) && print_root_expr { + let ty = with_forced_trimmed_paths!(self.ty_to_string(ty)); + // Point at the root expression + // vec![1, 2, 3].iter().map(mapper).sum<i32>() + // ^^^^^^^^^^^^^ + span_labels.push((expr.span, format!("this expression has type `{ty}`"))); + }; + // Only show this if it is not a "trivial" expression (not a method + // chain) and there are associated types to talk about. + let mut assocs = assocs.into_iter().peekable(); + while let Some(assocs_in_method) = assocs.next() { + let Some(prev_assoc_in_method) = assocs.peek() else { + for entry in assocs_in_method { + let Some((span, (assoc, ty))) = entry else { continue; }; + if primary_spans.is_empty() || type_diffs.iter().any(|diff| { + let Sorts(expected_found) = diff else { return false; }; + self.can_eq(param_env, expected_found.found, ty).is_ok() + }) { + // FIXME: this doesn't quite work for `Iterator::collect` + // because we have `Vec<i32>` and `()`, but we'd want `i32` + // to point at the `.into_iter()` call, but as long as we + // still point at the other method calls that might have + // introduced the issue, this is fine for now. + primary_spans.push(span); + } + span_labels.push(( + span, + with_forced_trimmed_paths!(format!( + "`{}` is `{ty}` here", + self.tcx.def_path_str(assoc), + )), + )); + } + break; + }; + for (entry, prev_entry) in + assocs_in_method.into_iter().zip(prev_assoc_in_method.into_iter()) + { + match (entry, prev_entry) { + (Some((span, (assoc, ty))), Some((_, (_, prev_ty)))) => { + let ty_str = with_forced_trimmed_paths!(self.ty_to_string(ty)); + + let assoc = with_forced_trimmed_paths!(self.tcx.def_path_str(assoc)); + if self.can_eq(param_env, ty, *prev_ty).is_err() { + if type_diffs.iter().any(|diff| { + let Sorts(expected_found) = diff else { return false; }; + self.can_eq(param_env, expected_found.found, ty).is_ok() + }) { + primary_spans.push(span); + } + span_labels + .push((span, format!("`{assoc}` changed to `{ty_str}` here"))); + } else { + span_labels.push((span, format!("`{assoc}` remains `{ty_str}` here"))); + } + } + (Some((span, (assoc, ty))), None) => { + span_labels.push(( + span, + with_forced_trimmed_paths!(format!( + "`{}` is `{}` here", + self.tcx.def_path_str(assoc), + self.ty_to_string(ty), + )), + )); + } + (None, Some(_)) | (None, None) => {} + } + } + } + if !primary_spans.is_empty() { + let mut multi_span: MultiSpan = primary_spans.into(); + for (span, label) in span_labels { + multi_span.push_span_label(span, label); + } + err.span_note( + multi_span, + format!("the method call chain might not have had the expected associated types"), + ); + } + } + + fn probe_assoc_types_at_expr( + &self, + type_diffs: &[TypeError<'tcx>], + span: Span, + prev_ty: Ty<'tcx>, + body_id: hir::HirId, + param_env: ty::ParamEnv<'tcx>, + ) -> Vec<Option<(Span, (DefId, Ty<'tcx>))>> { + let ocx = ObligationCtxt::new_in_snapshot(self.infcx); + let mut assocs_in_this_method = Vec::with_capacity(type_diffs.len()); + for diff in type_diffs { + let Sorts(expected_found) = diff else { continue; }; + let ty::Alias(ty::Projection, proj) = expected_found.expected.kind() else { continue; }; + + let origin = TypeVariableOrigin { kind: TypeVariableOriginKind::TypeInference, span }; + let trait_def_id = proj.trait_def_id(self.tcx); + // Make `Self` be equivalent to the type of the call chain + // expression we're looking at now, so that we can tell what + // for example `Iterator::Item` is at this point in the chain. + let substs = InternalSubsts::for_item(self.tcx, trait_def_id, |param, _| { + match param.kind { + ty::GenericParamDefKind::Type { .. } => { + if param.index == 0 { + return prev_ty.into(); + } + } + ty::GenericParamDefKind::Lifetime | ty::GenericParamDefKind::Const { .. } => {} + } + self.var_for_def(span, param) + }); + // This will hold the resolved type of the associated type, if the + // current expression implements the trait that associated type is + // in. For example, this would be what `Iterator::Item` is here. + let ty_var = self.infcx.next_ty_var(origin); + // This corresponds to `<ExprTy as Iterator>::Item = _`. + let projection = ty::Binder::dummy(ty::PredicateKind::Clause(ty::Clause::Projection( + ty::ProjectionPredicate { + projection_ty: self.tcx.mk_alias_ty(proj.def_id, substs), + term: ty_var.into(), + }, + ))); + // Add `<ExprTy as Iterator>::Item = _` obligation. + ocx.register_obligation(Obligation::misc( + self.tcx, span, body_id, param_env, projection, + )); + if ocx.select_where_possible().is_empty() { + // `ty_var` now holds the type that `Item` is for `ExprTy`. + let ty_var = self.resolve_vars_if_possible(ty_var); + assocs_in_this_method.push(Some((span, (proj.def_id, ty_var)))); + } else { + // `<ExprTy as Iterator>` didn't select, so likely we've + // reached the end of the iterator chain, like the originating + // `Vec<_>`. + // Keep the space consistent for later zipping. + assocs_in_this_method.push(None); + } + } + assocs_in_this_method + } +} + +/// Add a hint to add a missing borrow or remove an unnecessary one. +fn hint_missing_borrow<'tcx>( + span: Span, + found_span: Span, + found: Ty<'tcx>, + expected: Ty<'tcx>, + found_node: Node<'_>, + err: &mut Diagnostic, +) { + let found_args = match found.kind() { + ty::FnPtr(f) => f.inputs().skip_binder().iter(), + kind => { + span_bug!(span, "found was converted to a FnPtr above but is now {:?}", kind) + } + }; + let expected_args = match expected.kind() { + ty::FnPtr(f) => f.inputs().skip_binder().iter(), + kind => { + span_bug!(span, "expected was converted to a FnPtr above but is now {:?}", kind) + } + }; + + let fn_decl = found_node + .fn_decl() + .unwrap_or_else(|| span_bug!(found_span, "found node must be a function")); + + let arg_spans = fn_decl.inputs.iter().map(|ty| ty.span); + + fn get_deref_type_and_refs<'tcx>(mut ty: Ty<'tcx>) -> (Ty<'tcx>, usize) { + let mut refs = 0; + + while let ty::Ref(_, new_ty, _) = ty.kind() { + ty = *new_ty; + refs += 1; + } + + (ty, refs) + } + + let mut to_borrow = Vec::new(); + let mut remove_borrow = Vec::new(); + + for ((found_arg, expected_arg), arg_span) in found_args.zip(expected_args).zip(arg_spans) { + let (found_ty, found_refs) = get_deref_type_and_refs(*found_arg); + let (expected_ty, expected_refs) = get_deref_type_and_refs(*expected_arg); + + if found_ty == expected_ty { + if found_refs < expected_refs { + to_borrow.push((arg_span, expected_arg.to_string())); + } else if found_refs > expected_refs { + remove_borrow.push((arg_span, expected_arg.to_string())); + } + } + } + + if !to_borrow.is_empty() { + err.multipart_suggestion( + "consider borrowing the argument", + to_borrow, + Applicability::MaybeIncorrect, + ); + } + + if !remove_borrow.is_empty() { + err.multipart_suggestion( + "do not borrow the argument", + remove_borrow, + Applicability::MaybeIncorrect, + ); + } } /// Collect all the returned expressions within the input expression. @@ -3208,13 +3631,6 @@ fn suggest_trait_object_return_type_alternatives( ) { err.span_suggestion( ret_ty, - "use some type `T` that is `T: Sized` as the return type if all return paths have the \ - same type", - "T", - Applicability::MaybeIncorrect, - ); - err.span_suggestion( - ret_ty, &format!( "use `impl {}` as the return type if all return paths have the same type but you \ want to expose only the trait in the signature", diff --git a/compiler/rustc_trait_selection/src/traits/mod.rs b/compiler/rustc_trait_selection/src/traits/mod.rs index ea4bf42c515..2566d793d78 100644 --- a/compiler/rustc_trait_selection/src/traits/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/mod.rs @@ -425,13 +425,8 @@ pub fn fully_solve_bound<'tcx>( bound: DefId, ) -> Vec<FulfillmentError<'tcx>> { let tcx = infcx.tcx; - let trait_ref = ty::TraitRef { def_id: bound, substs: tcx.mk_substs_trait(ty, []) }; - let obligation = Obligation { - cause, - recursion_depth: 0, - param_env, - predicate: ty::Binder::dummy(trait_ref).without_const().to_predicate(tcx), - }; + let trait_ref = tcx.mk_trait_ref(bound, [ty]); + let obligation = Obligation::new(tcx, cause, param_env, ty::Binder::dummy(trait_ref)); fully_solve_obligation(infcx, obligation) } diff --git a/compiler/rustc_trait_selection/src/traits/object_safety.rs b/compiler/rustc_trait_selection/src/traits/object_safety.rs index a45749fe48c..8b1ced78f4e 100644 --- a/compiler/rustc_trait_selection/src/traits/object_safety.rs +++ b/compiler/rustc_trait_selection/src/traits/object_safety.rs @@ -589,7 +589,7 @@ fn object_ty_for_trait<'tcx>( let pred = obligation.predicate.to_opt_poly_projection_pred()?; Some(pred.map_bound(|p| { ty::ExistentialPredicate::Projection(ty::ExistentialProjection { - item_def_id: p.projection_ty.item_def_id, + def_id: p.projection_ty.def_id, substs: p.projection_ty.substs, term: p.term, }) @@ -694,18 +694,12 @@ fn receiver_is_dispatchable<'tcx>( // U: Trait<Arg1, ..., ArgN> let trait_predicate = { - let substs = - InternalSubsts::for_item(tcx, method.trait_container(tcx).unwrap(), |param, _| { - if param.index == 0 { - unsized_self_ty.into() - } else { - tcx.mk_param_from_def(param) - } - }); + let trait_def_id = method.trait_container(tcx).unwrap(); + let substs = InternalSubsts::for_item(tcx, trait_def_id, |param, _| { + if param.index == 0 { unsized_self_ty.into() } else { tcx.mk_param_from_def(param) } + }); - ty::Binder::dummy(ty::TraitRef { def_id: unsize_did, substs }) - .without_const() - .to_predicate(tcx) + ty::Binder::dummy(tcx.mk_trait_ref(trait_def_id, substs)).to_predicate(tcx) }; let caller_bounds: Vec<Predicate<'tcx>> = @@ -794,13 +788,13 @@ fn contains_illegal_self_type_reference<'tcx, T: TypeVisitable<'tcx>>( ControlFlow::CONTINUE } } - ty::Projection(ref data) - if self.tcx.def_kind(data.item_def_id) == DefKind::ImplTraitPlaceholder => + ty::Alias(ty::Projection, ref data) + if self.tcx.def_kind(data.def_id) == DefKind::ImplTraitPlaceholder => { // We'll deny these later in their own pass ControlFlow::CONTINUE } - ty::Projection(ref data) => { + ty::Alias(ty::Projection, ref data) => { // This is a projected type `<Foo as SomeTrait>::X`. // Compute supertraits of current trait lazily. @@ -861,10 +855,10 @@ pub fn contains_illegal_impl_trait_in_trait<'tcx>( // FIXME(RPITIT): Perhaps we should use a visitor here? ty.skip_binder().walk().find_map(|arg| { if let ty::GenericArgKind::Type(ty) = arg.unpack() - && let ty::Projection(proj) = ty.kind() - && tcx.def_kind(proj.item_def_id) == DefKind::ImplTraitPlaceholder + && let ty::Alias(ty::Projection, proj) = ty.kind() + && tcx.def_kind(proj.def_id) == DefKind::ImplTraitPlaceholder { - Some(MethodViolationCode::ReferencesImplTraitInTrait(tcx.def_span(proj.item_def_id))) + Some(MethodViolationCode::ReferencesImplTraitInTrait(tcx.def_span(proj.def_id))) } else { None } diff --git a/compiler/rustc_trait_selection/src/traits/project.rs b/compiler/rustc_trait_selection/src/traits/project.rs index 5789754e4fc..84d7244c1db 100644 --- a/compiler/rustc_trait_selection/src/traits/project.rs +++ b/compiler/rustc_trait_selection/src/traits/project.rs @@ -45,7 +45,7 @@ pub type PolyProjectionObligation<'tcx> = Obligation<'tcx, ty::PolyProjectionPre pub type ProjectionObligation<'tcx> = Obligation<'tcx, ty::ProjectionPredicate<'tcx>>; -pub type ProjectionTyObligation<'tcx> = Obligation<'tcx, ty::ProjectionTy<'tcx>>; +pub type ProjectionTyObligation<'tcx> = Obligation<'tcx, ty::AliasTy<'tcx>>; pub(super) struct InProgress; @@ -496,7 +496,9 @@ impl<'a, 'b, 'tcx> TypeFolder<'tcx> for AssocTypeNormalizer<'a, 'b, 'tcx> { // This is really important. While we *can* handle this, this has // severe performance implications for large opaque types with // late-bound regions. See `issue-88862` benchmark. - ty::Opaque(def_id, substs) if !substs.has_escaping_bound_vars() => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) + if !substs.has_escaping_bound_vars() => + { // Only normalize `impl Trait` outside of type inference, usually in codegen. match self.param_env.reveal() { Reveal::UserFacing => ty.super_fold_with(self), @@ -523,7 +525,7 @@ impl<'a, 'b, 'tcx> TypeFolder<'tcx> for AssocTypeNormalizer<'a, 'b, 'tcx> { } } - ty::Projection(data) if !data.has_escaping_bound_vars() => { + ty::Alias(ty::Projection, data) if !data.has_escaping_bound_vars() => { // This branch is *mostly* just an optimization: when we don't // have escaping bound vars, we don't need to replace them with // placeholders (see branch below). *Also*, we know that we can @@ -562,7 +564,7 @@ impl<'a, 'b, 'tcx> TypeFolder<'tcx> for AssocTypeNormalizer<'a, 'b, 'tcx> { normalized_ty.ty().unwrap() } - ty::Projection(data) => { + ty::Alias(ty::Projection, data) => { // If there are escaping bound vars, we temporarily replace the // bound vars with placeholders. Note though, that in the case // that we still can't project for whatever reason (e.g. self @@ -957,7 +959,7 @@ impl<'tcx> TypeFolder<'tcx> for PlaceholderReplacer<'_, 'tcx> { pub fn normalize_projection_type<'a, 'b, 'tcx>( selcx: &'a mut SelectionContext<'b, 'tcx>, param_env: ty::ParamEnv<'tcx>, - projection_ty: ty::ProjectionTy<'tcx>, + projection_ty: ty::AliasTy<'tcx>, cause: ObligationCause<'tcx>, depth: usize, obligations: &mut Vec<PredicateObligation<'tcx>>, @@ -995,7 +997,7 @@ pub fn normalize_projection_type<'a, 'b, 'tcx>( fn opt_normalize_projection_type<'a, 'b, 'tcx>( selcx: &'a mut SelectionContext<'b, 'tcx>, param_env: ty::ParamEnv<'tcx>, - projection_ty: ty::ProjectionTy<'tcx>, + projection_ty: ty::AliasTy<'tcx>, cause: ObligationCause<'tcx>, depth: usize, obligations: &mut Vec<PredicateObligation<'tcx>>, @@ -1177,7 +1179,7 @@ fn opt_normalize_projection_type<'a, 'b, 'tcx>( fn normalize_to_error<'a, 'tcx>( selcx: &mut SelectionContext<'a, 'tcx>, param_env: ty::ParamEnv<'tcx>, - projection_ty: ty::ProjectionTy<'tcx>, + projection_ty: ty::AliasTy<'tcx>, cause: ObligationCause<'tcx>, depth: usize, ) -> NormalizedTy<'tcx> { @@ -1189,10 +1191,9 @@ fn normalize_to_error<'a, 'tcx>( predicate: trait_ref.without_const().to_predicate(selcx.tcx()), }; let tcx = selcx.infcx.tcx; - let def_id = projection_ty.item_def_id; let new_value = selcx.infcx.next_ty_var(TypeVariableOrigin { kind: TypeVariableOriginKind::NormalizeProjectionType, - span: tcx.def_span(def_id), + span: tcx.def_span(projection_ty.def_id), }); Normalized { value: new_value, obligations: vec![trait_obligation] } } @@ -1270,7 +1271,7 @@ fn project<'cx, 'tcx>( // need to investigate whether or not this is fine. selcx .tcx() - .mk_projection(obligation.predicate.item_def_id, obligation.predicate.substs) + .mk_projection(obligation.predicate.def_id, obligation.predicate.substs) .into(), )), // Error occurred while trying to processing impls. @@ -1290,13 +1291,12 @@ fn assemble_candidate_for_impl_trait_in_trait<'cx, 'tcx>( candidate_set: &mut ProjectionCandidateSet<'tcx>, ) { let tcx = selcx.tcx(); - if tcx.def_kind(obligation.predicate.item_def_id) == DefKind::ImplTraitPlaceholder { - let trait_fn_def_id = tcx.impl_trait_in_trait_parent(obligation.predicate.item_def_id); + if tcx.def_kind(obligation.predicate.def_id) == DefKind::ImplTraitPlaceholder { + let trait_fn_def_id = tcx.impl_trait_in_trait_parent(obligation.predicate.def_id); // If we are trying to project an RPITIT with trait's default `Self` parameter, // then we must be within a default trait body. if obligation.predicate.self_ty() - == ty::InternalSubsts::identity_for_item(tcx, obligation.predicate.item_def_id) - .type_at(0) + == ty::InternalSubsts::identity_for_item(tcx, obligation.predicate.def_id).type_at(0) && tcx.associated_item(trait_fn_def_id).defaultness(tcx).has_value() { candidate_set.push_candidate(ProjectionCandidate::ImplTraitInTrait( @@ -1309,8 +1309,7 @@ fn assemble_candidate_for_impl_trait_in_trait<'cx, 'tcx>( let trait_substs = obligation.predicate.substs.truncate_to(tcx, tcx.generics_of(trait_def_id)); // FIXME(named-returns): Binders - let trait_predicate = - ty::Binder::dummy(ty::TraitRef { def_id: trait_def_id, substs: trait_substs }); + let trait_predicate = ty::Binder::dummy(tcx.mk_trait_ref(trait_def_id, trait_substs)); let _ = selcx.infcx.commit_if_ok(|_| { match selcx.select(&obligation.with(tcx, trait_predicate)) { @@ -1377,8 +1376,7 @@ fn assemble_candidates_from_trait_def<'cx, 'tcx>( // Check whether the self-type is itself a projection. // If so, extract what we know from the trait and try to come up with a good answer. let bounds = match *obligation.predicate.self_ty().kind() { - ty::Projection(ref data) => tcx.bound_item_bounds(data.item_def_id).subst(tcx, data.substs), - ty::Opaque(def_id, substs) => tcx.bound_item_bounds(def_id).subst(tcx, substs), + ty::Alias(_, ref data) => tcx.bound_item_bounds(data.def_id).subst(tcx, data.substs), ty::Infer(ty::TyVar(_)) => { // If the self-type is an inference variable, then it MAY wind up // being a projected type, so induce an ambiguity. @@ -1430,7 +1428,7 @@ fn assemble_candidates_from_object_ty<'cx, 'tcx>( }; let env_predicates = data .projection_bounds() - .filter(|bound| bound.item_def_id() == obligation.predicate.item_def_id) + .filter(|bound| bound.item_def_id() == obligation.predicate.def_id) .map(|p| p.with_self_ty(tcx, object_ty).to_predicate(tcx)); assemble_candidates_from_predicates( @@ -1462,7 +1460,7 @@ fn assemble_candidates_from_predicates<'cx, 'tcx>( predicate.kind().skip_binder() { let data = bound_predicate.rebind(data); - if data.projection_def_id() != obligation.predicate.item_def_id { + if data.projection_def_id() != obligation.predicate.def_id { continue; } @@ -1503,7 +1501,7 @@ fn assemble_candidates_from_impls<'cx, 'tcx>( candidate_set: &mut ProjectionCandidateSet<'tcx>, ) { // Can't assemble candidate from impl for RPITIT - if selcx.tcx().def_kind(obligation.predicate.item_def_id) == DefKind::ImplTraitPlaceholder { + if selcx.tcx().def_kind(obligation.predicate.def_id) == DefKind::ImplTraitPlaceholder { return; } @@ -1555,7 +1553,7 @@ fn assemble_candidates_from_impls<'cx, 'tcx>( // NOTE: This should be kept in sync with the similar code in // `rustc_ty_utils::instance::resolve_associated_item()`. let node_item = - assoc_def(selcx, impl_data.impl_def_id, obligation.predicate.item_def_id) + assoc_def(selcx, impl_data.impl_def_id, obligation.predicate.def_id) .map_err(|ErrorGuaranteed { .. }| ())?; if node_item.is_final() { @@ -1616,8 +1614,7 @@ fn assemble_candidates_from_impls<'cx, 'tcx>( // type parameters, opaques, and unnormalized projections have pointer // metadata if they're known (e.g. by the param_env) to be sized ty::Param(_) - | ty::Projection(..) - | ty::Opaque(..) + | ty::Alias(..) | ty::Bound(..) | ty::Placeholder(..) | ty::Infer(..) @@ -1671,7 +1668,7 @@ fn assemble_candidates_from_impls<'cx, 'tcx>( // type parameters, opaques, and unnormalized projections have pointer // metadata if they're known (e.g. by the param_env) to be sized - ty::Param(_) | ty::Projection(..) | ty::Opaque(..) + ty::Param(_) | ty::Alias(..) if selcx.infcx.predicate_must_hold_modulo_regions( &obligation.with( selcx.tcx(), @@ -1687,8 +1684,7 @@ fn assemble_candidates_from_impls<'cx, 'tcx>( // FIXME(compiler-errors): are Bound and Placeholder types ever known sized? ty::Param(_) - | ty::Projection(..) - | ty::Opaque(..) + | ty::Alias(..) | ty::Bound(..) | ty::Placeholder(..) | ty::Infer(..) @@ -1788,7 +1784,7 @@ fn confirm_candidate<'cx, 'tcx>( ProjectionCandidate::ImplTraitInTrait(ImplTraitInTraitCandidate::Trait) => Progress { term: selcx .tcx() - .mk_opaque(obligation.predicate.item_def_id, obligation.predicate.substs) + .mk_opaque(obligation.predicate.def_id, obligation.predicate.substs) .into(), obligations: vec![], }, @@ -1860,7 +1856,7 @@ fn confirm_generator_candidate<'cx, 'tcx>( gen_sig, ) .map_bound(|(trait_ref, yield_ty, return_ty)| { - let name = tcx.associated_item(obligation.predicate.item_def_id).name; + let name = tcx.associated_item(obligation.predicate.def_id).name; let ty = if name == sym::Return { return_ty } else if name == sym::Yield { @@ -1870,10 +1866,7 @@ fn confirm_generator_candidate<'cx, 'tcx>( }; ty::ProjectionPredicate { - projection_ty: ty::ProjectionTy { - substs: trait_ref.substs, - item_def_id: obligation.predicate.item_def_id, - }, + projection_ty: tcx.mk_alias_ty(obligation.predicate.def_id, trait_ref.substs), term: ty.into(), } }); @@ -1909,13 +1902,10 @@ fn confirm_future_candidate<'cx, 'tcx>( gen_sig, ) .map_bound(|(trait_ref, return_ty)| { - debug_assert_eq!(tcx.associated_item(obligation.predicate.item_def_id).name, sym::Output); + debug_assert_eq!(tcx.associated_item(obligation.predicate.def_id).name, sym::Output); ty::ProjectionPredicate { - projection_ty: ty::ProjectionTy { - substs: trait_ref.substs, - item_def_id: obligation.predicate.item_def_id, - }, + projection_ty: tcx.mk_alias_ty(obligation.predicate.def_id, trait_ref.substs), term: return_ty.into(), } }); @@ -1934,7 +1924,7 @@ fn confirm_builtin_candidate<'cx, 'tcx>( let self_ty = obligation.predicate.self_ty(); let substs = tcx.mk_substs([self_ty.into()].iter()); let lang_items = tcx.lang_items(); - let item_def_id = obligation.predicate.item_def_id; + let item_def_id = obligation.predicate.def_id; let trait_def_id = tcx.trait_of_item(item_def_id).unwrap(); let (term, obligations) = if lang_items.discriminant_kind_trait() == Some(trait_def_id) { let discriminant_def_id = tcx.require_lang_item(LangItem::Discriminant, None); @@ -1969,7 +1959,7 @@ fn confirm_builtin_candidate<'cx, 'tcx>( }; let predicate = - ty::ProjectionPredicate { projection_ty: ty::ProjectionTy { substs, item_def_id }, term }; + ty::ProjectionPredicate { projection_ty: tcx.mk_alias_ty(item_def_id, substs), term }; confirm_param_env_candidate(selcx, obligation, ty::Binder::dummy(predicate), false) .with_addl_obligations(obligations) @@ -2038,10 +2028,7 @@ fn confirm_callable_candidate<'cx, 'tcx>( flag, ) .map_bound(|(trait_ref, ret_type)| ty::ProjectionPredicate { - projection_ty: ty::ProjectionTy { - substs: trait_ref.substs, - item_def_id: fn_once_output_def_id, - }, + projection_ty: tcx.mk_alias_ty(fn_once_output_def_id, trait_ref.substs), term: ret_type.into(), }); @@ -2122,7 +2109,7 @@ fn confirm_impl_candidate<'cx, 'tcx>( let tcx = selcx.tcx(); let ImplSourceUserDefinedData { impl_def_id, substs, mut nested } = impl_impl_source; - let assoc_item_id = obligation.predicate.item_def_id; + let assoc_item_id = obligation.predicate.def_id; let trait_def_id = tcx.trait_id_of_impl(impl_def_id).unwrap(); let param_env = obligation.param_env; @@ -2222,7 +2209,7 @@ fn confirm_impl_trait_in_trait_candidate<'tcx>( let tcx = selcx.tcx(); let mut obligations = data.nested; - let trait_fn_def_id = tcx.impl_trait_in_trait_parent(obligation.predicate.item_def_id); + let trait_fn_def_id = tcx.impl_trait_in_trait_parent(obligation.predicate.def_id); let Ok(leaf_def) = assoc_def(selcx, data.impl_def_id, trait_fn_def_id) else { return Progress { term: tcx.ty_error().into(), obligations }; }; @@ -2233,9 +2220,7 @@ fn confirm_impl_trait_in_trait_candidate<'tcx>( // Use the default `impl Trait` for the trait, e.g., for a default trait body if leaf_def.item.container == ty::AssocItemContainer::TraitContainer { return Progress { - term: tcx - .mk_opaque(obligation.predicate.item_def_id, obligation.predicate.substs) - .into(), + term: tcx.mk_opaque(obligation.predicate.def_id, obligation.predicate.substs).into(), obligations, }; } @@ -2302,7 +2287,7 @@ fn confirm_impl_trait_in_trait_candidate<'tcx>( obligation.recursion_depth + 1, tcx.bound_trait_impl_trait_tys(impl_fn_def_id) .map_bound(|tys| { - tys.map_or_else(|_| tcx.ty_error(), |tys| tys[&obligation.predicate.item_def_id]) + tys.map_or_else(|_| tcx.ty_error(), |tys| tys[&obligation.predicate.def_id]) }) .subst(tcx, impl_fn_substs), &mut obligations, @@ -2320,7 +2305,7 @@ fn assoc_ty_own_obligations<'cx, 'tcx>( ) { let tcx = selcx.tcx(); let own = tcx - .predicates_of(obligation.predicate.item_def_id) + .predicates_of(obligation.predicate.def_id) .instantiate_own(tcx, obligation.predicate.substs); for (predicate, span) in std::iter::zip(own.predicates, own.spans) { let normalized = normalize_with_depth_to( @@ -2343,13 +2328,13 @@ fn assoc_ty_own_obligations<'cx, 'tcx>( ObligationCause::new( obligation.cause.span, obligation.cause.body_id, - super::ItemObligation(obligation.predicate.item_def_id), + super::ItemObligation(obligation.predicate.def_id), ) } else { ObligationCause::new( obligation.cause.span, obligation.cause.body_id, - super::BindingObligation(obligation.predicate.item_def_id, span), + super::BindingObligation(obligation.predicate.def_id, span), ) }; nested.push(Obligation::with_depth( diff --git a/compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs b/compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs index aad3c37f84e..0f21813bc40 100644 --- a/compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs +++ b/compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs @@ -62,9 +62,8 @@ pub fn trivial_dropck_outlives<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> bool { // The following *might* require a destructor: needs deeper inspection. ty::Dynamic(..) - | ty::Projection(..) + | ty::Alias(..) | ty::Param(_) - | ty::Opaque(..) | ty::Placeholder(..) | ty::Infer(_) | ty::Bound(..) diff --git a/compiler/rustc_trait_selection/src/traits/query/normalize.rs b/compiler/rustc_trait_selection/src/traits/query/normalize.rs index 7ad532d8a34..c6ef13e185b 100644 --- a/compiler/rustc_trait_selection/src/traits/query/normalize.rs +++ b/compiler/rustc_trait_selection/src/traits/query/normalize.rs @@ -205,7 +205,9 @@ impl<'cx, 'tcx> FallibleTypeFolder<'tcx> for QueryNormalizer<'cx, 'tcx> { // This is really important. While we *can* handle this, this has // severe performance implications for large opaque types with // late-bound regions. See `issue-88862` benchmark. - ty::Opaque(def_id, substs) if !substs.has_escaping_bound_vars() => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) + if !substs.has_escaping_bound_vars() => + { // Only normalize `impl Trait` outside of type inference, usually in codegen. match self.param_env.reveal() { Reveal::UserFacing => ty.try_super_fold_with(self), @@ -242,7 +244,7 @@ impl<'cx, 'tcx> FallibleTypeFolder<'tcx> for QueryNormalizer<'cx, 'tcx> { } } - ty::Projection(data) if !data.has_escaping_bound_vars() => { + ty::Alias(ty::Projection, data) if !data.has_escaping_bound_vars() => { // This branch is just an optimization: when we don't have escaping bound vars, // we don't need to replace them with placeholders (see branch below). @@ -291,7 +293,7 @@ impl<'cx, 'tcx> FallibleTypeFolder<'tcx> for QueryNormalizer<'cx, 'tcx> { } } - ty::Projection(data) => { + ty::Alias(ty::Projection, data) => { // See note in `rustc_trait_selection::traits::project` let tcx = self.infcx.tcx; diff --git a/compiler/rustc_trait_selection/src/traits/relationships.rs b/compiler/rustc_trait_selection/src/traits/relationships.rs index bfa318787e5..34b5fc4891e 100644 --- a/compiler/rustc_trait_selection/src/traits/relationships.rs +++ b/compiler/rustc_trait_selection/src/traits/relationships.rs @@ -26,7 +26,7 @@ pub(crate) fn update<'tcx, T>( .kind() .rebind( // (*) binder moved here - ty::PredicateKind::Clause(ty::Clause::Trait(tpred.with_self_type(infcx.tcx, new_self_ty))) + ty::PredicateKind::Clause(ty::Clause::Trait(tpred.with_self_ty(infcx.tcx, new_self_ty))) ), ); // Don't report overflow errors. Otherwise equivalent to may_hold. diff --git a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs index e4b70f0d2ff..c54d901e9b1 100644 --- a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs +++ b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs @@ -138,7 +138,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { // Before we go into the whole placeholder thing, just // quickly check if the self-type is a projection at all. match obligation.predicate.skip_binder().trait_ref.self_ty().kind() { - ty::Projection(_) | ty::Opaque(..) => {} + ty::Alias(..) => {} ty::Infer(ty::TyVar(_)) => { span_bug!( obligation.cause.span, @@ -394,7 +394,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { // still be provided by a manual implementation for // this trait and type. } - ty::Param(..) | ty::Projection(..) => { + ty::Param(..) | ty::Alias(ty::Projection, ..) => { // In these cases, we don't know what the actual // type is. Therefore, we cannot break it down // into its constituent types. So we don't @@ -536,10 +536,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { let ty = traits::normalize_projection_type( self, param_env, - ty::ProjectionTy { - item_def_id: tcx.lang_items().deref_target()?, - substs: trait_ref.substs, - }, + tcx.mk_alias_ty(tcx.lang_items().deref_target()?, trait_ref.substs), cause.clone(), 0, // We're *intentionally* throwing these away, @@ -737,13 +734,12 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { let self_ty = self.infcx.shallow_resolve(obligation.self_ty()); match self_ty.skip_binder().kind() { - ty::Opaque(..) + ty::Alias(..) | ty::Dynamic(..) | ty::Error(_) | ty::Bound(..) | ty::Param(_) - | ty::Placeholder(_) - | ty::Projection(_) => { + | ty::Placeholder(_) => { // We don't know if these are `~const Destruct`, at least // not structurally... so don't push a candidate. } @@ -829,8 +825,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { | ty::Generator(_, _, _) | ty::GeneratorWitness(_) | ty::Never - | ty::Projection(_) - | ty::Opaque(_, _) + | ty::Alias(..) | ty::Param(_) | ty::Bound(_, _) | ty::Error(_) diff --git a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs index fda415155c4..f6fe71fbd4f 100644 --- a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs +++ b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs @@ -155,8 +155,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { let placeholder_self_ty = placeholder_trait_predicate.self_ty(); let placeholder_trait_predicate = ty::Binder::dummy(placeholder_trait_predicate); let (def_id, substs) = match *placeholder_self_ty.kind() { - ty::Projection(proj) => (proj.item_def_id, proj.substs), - ty::Opaque(def_id, substs) => (def_id, substs), + ty::Alias(_, ty::AliasTy { def_id, substs, .. }) => (def_id, substs), _ => bug!("projection candidate for unexpected type: {:?}", placeholder_self_ty), }; @@ -184,7 +183,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { .map_err(|_| Unimplemented) })?); - if let ty::Projection(..) = placeholder_self_ty.kind() { + if let ty::Alias(ty::Projection, ..) = placeholder_self_ty.kind() { let predicates = tcx.predicates_of(def_id).instantiate_own(tcx, substs).predicates; debug!(?predicates, "projection predicates"); for predicate in predicates { @@ -1279,7 +1278,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { // If we have a projection type, make sure to normalize it so we replace it // with a fresh infer variable - ty::Projection(..) => { + ty::Alias(ty::Projection, ..) => { let predicate = normalize_with_depth_to( self, obligation.param_env, diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs index 035deb61639..792933096b1 100644 --- a/compiler/rustc_trait_selection/src/traits/select/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs @@ -1595,8 +1595,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { let tcx = self.infcx.tcx; let (def_id, substs) = match *placeholder_trait_predicate.trait_ref.self_ty().kind() { - ty::Projection(ref data) => (data.item_def_id, data.substs), - ty::Opaque(def_id, substs) => (def_id, substs), + ty::Alias(_, ty::AliasTy { def_id, substs, .. }) => (def_id, substs), _ => { span_bug!( obligation.cause.span, @@ -1745,7 +1744,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { }); if is_match { - let generics = self.tcx().generics_of(obligation.predicate.item_def_id); + let generics = self.tcx().generics_of(obligation.predicate.def_id); // FIXME(generic-associated-types): Addresses aggressive inference in #92917. // If this type is a GAT, and of the GAT substs resolve to something new, // that means that we must have newly inferred something about the GAT. @@ -2067,7 +2066,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { })) } - ty::Projection(_) | ty::Param(_) | ty::Opaque(..) => None, + ty::Alias(..) | ty::Param(_) => None, ty::Infer(ty::TyVar(_)) => Ambiguous, ty::Placeholder(..) @@ -2167,7 +2166,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { } } - ty::Adt(..) | ty::Projection(..) | ty::Param(..) | ty::Opaque(..) => { + ty::Adt(..) | ty::Alias(..) | ty::Param(..) => { // Fallback to whatever user-defined impls exist in this case. None } @@ -2220,7 +2219,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { | ty::Dynamic(..) | ty::Param(..) | ty::Foreign(..) - | ty::Projection(..) + | ty::Alias(ty::Projection, ..) | ty::Bound(..) | ty::Infer(ty::TyVar(_) | ty::FreshTy(_) | ty::FreshIntTy(_) | ty::FreshFloatTy(_)) => { bug!("asked to assemble constituent types of unexpected type: {:?}", t); @@ -2260,7 +2259,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { t.rebind(def.all_fields().map(|f| f.ty(self.tcx(), substs)).collect()) } - ty::Opaque(def_id, substs) => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => { // We can resolve the `impl Trait` to its concrete type, // which enforces a DAG between the functions requiring // the auto trait bounds in question. diff --git a/compiler/rustc_trait_selection/src/traits/structural_match.rs b/compiler/rustc_trait_selection/src/traits/structural_match.rs index 4dc08e0f9da..892a7afd799 100644 --- a/compiler/rustc_trait_selection/src/traits/structural_match.rs +++ b/compiler/rustc_trait_selection/src/traits/structural_match.rs @@ -95,10 +95,7 @@ impl<'tcx> TypeVisitor<'tcx> for Search<'tcx> { ty::Foreign(_) => { return ControlFlow::Break(ty); } - ty::Opaque(..) => { - return ControlFlow::Break(ty); - } - ty::Projection(..) => { + ty::Alias(..) => { return ControlFlow::Break(ty); } ty::Closure(..) => { diff --git a/compiler/rustc_trait_selection/src/traits/wf.rs b/compiler/rustc_trait_selection/src/traits/wf.rs index e47ba64245f..0e0a883d9f5 100644 --- a/compiler/rustc_trait_selection/src/traits/wf.rs +++ b/compiler/rustc_trait_selection/src/traits/wf.rs @@ -234,9 +234,9 @@ fn extend_cause_with_original_assoc_item_obligation<'tcx>( // projection coming from another associated type. See // `src/test/ui/associated-types/point-at-type-on-obligation-failure.rs` and // `traits-assoc-type-in-supertrait-bad.rs`. - if let Some(ty::Projection(projection_ty)) = proj.term.ty().map(|ty| ty.kind()) + if let Some(ty::Alias(ty::Projection, projection_ty)) = proj.term.ty().map(|ty| ty.kind()) && let Some(&impl_item_id) = - tcx.impl_item_implementor_ids(impl_def_id).get(&projection_ty.item_def_id) + tcx.impl_item_implementor_ids(impl_def_id).get(&projection_ty.def_id) && let Some(impl_item_span) = items .iter() .find(|item| item.id.owner_id.to_def_id() == impl_item_id) @@ -249,9 +249,9 @@ fn extend_cause_with_original_assoc_item_obligation<'tcx>( // An associated item obligation born out of the `trait` failed to be met. An example // can be seen in `ui/associated-types/point-at-type-on-obligation-failure-2.rs`. debug!("extended_cause_with_original_assoc_item_obligation trait proj {:?}", pred); - if let ty::Projection(ty::ProjectionTy { item_def_id, .. }) = *pred.self_ty().kind() + if let ty::Alias(ty::Projection, ty::AliasTy { def_id, .. }) = *pred.self_ty().kind() && let Some(&impl_item_id) = - tcx.impl_item_implementor_ids(impl_def_id).get(&item_def_id) + tcx.impl_item_implementor_ids(impl_def_id).get(&def_id) && let Some(impl_item_span) = items .iter() .find(|item| item.id.owner_id.to_def_id() == impl_item_id) @@ -369,7 +369,7 @@ impl<'tcx> WfPredicates<'tcx> { /// Pushes the obligations required for `trait_ref::Item` to be WF /// into `self.out`. - fn compute_projection(&mut self, data: ty::ProjectionTy<'tcx>) { + fn compute_projection(&mut self, data: ty::AliasTy<'tcx>) { // A projection is well-formed if // // (a) its predicates hold (*) @@ -392,7 +392,7 @@ impl<'tcx> WfPredicates<'tcx> { // `i32: Copy` // ] // Projection types do not require const predicates. - let obligations = self.nominal_obligations_without_const(data.item_def_id, data.substs); + let obligations = self.nominal_obligations_without_const(data.def_id, data.substs); self.out.extend(obligations); let tcx = self.tcx(); @@ -451,19 +451,21 @@ impl<'tcx> WfPredicates<'tcx> { GenericArgKind::Const(ct) => { match ct.kind() { ty::ConstKind::Unevaluated(uv) => { - let obligations = self.nominal_obligations(uv.def.did, uv.substs); - self.out.extend(obligations); - - let predicate = - ty::Binder::dummy(ty::PredicateKind::ConstEvaluatable(ct)); - let cause = self.cause(traits::WellFormed(None)); - self.out.push(traits::Obligation::with_depth( - self.tcx(), - cause, - self.recursion_depth, - self.param_env, - predicate, - )); + if !ct.has_escaping_bound_vars() { + let obligations = self.nominal_obligations(uv.def.did, uv.substs); + self.out.extend(obligations); + + let predicate = + ty::Binder::dummy(ty::PredicateKind::ConstEvaluatable(ct)); + let cause = self.cause(traits::WellFormed(None)); + self.out.push(traits::Obligation::with_depth( + self.tcx(), + cause, + self.recursion_depth, + self.param_env, + predicate, + )); + } } ty::ConstKind::Infer(_) => { let cause = self.cause(traits::WellFormed(None)); @@ -556,7 +558,7 @@ impl<'tcx> WfPredicates<'tcx> { // Simple cases that are WF if their type args are WF. } - ty::Projection(data) => { + ty::Alias(ty::Projection, data) => { walker.skip_current_subtree(); // Subtree handled by compute_projection. self.compute_projection(data); } @@ -648,12 +650,12 @@ impl<'tcx> WfPredicates<'tcx> { // types appearing in the fn signature } - ty::Opaque(did, substs) => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => { // All of the requirements on type parameters // have already been checked for `impl Trait` in // return position. We do need to check type-alias-impl-trait though. - if ty::is_impl_trait_defn(self.tcx, did).is_none() { - let obligations = self.nominal_obligations(did, substs); + if ty::is_impl_trait_defn(self.tcx, def_id).is_none() { + let obligations = self.nominal_obligations(def_id, substs); self.out.extend(obligations); } } diff --git a/compiler/rustc_traits/src/chalk/db.rs b/compiler/rustc_traits/src/chalk/db.rs index 344c8b93c17..bc4a52c5040 100644 --- a/compiler/rustc_traits/src/chalk/db.rs +++ b/compiler/rustc_traits/src/chalk/db.rs @@ -432,7 +432,10 @@ impl<'tcx> chalk_solve::RustIrDatabase<RustInterner<'tcx>> for RustIrDatabase<'t (ast::Mutability::Not, chalk_ir::Mutability::Not) => true, } } - (&ty::Opaque(def_id, ..), OpaqueType(opaque_ty_id, ..)) => def_id == opaque_ty_id.0, + ( + &ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }), + OpaqueType(opaque_ty_id, ..), + ) => def_id == opaque_ty_id.0, (&ty::FnDef(def_id, ..), FnDef(fn_def_id, ..)) => def_id == fn_def_id.0, (&ty::Str, Str) => true, (&ty::Never, Never) => true, @@ -786,7 +789,7 @@ impl<'tcx> ty::TypeFolder<'tcx> for ReplaceOpaqueTyFolder<'tcx> { } fn fold_ty(&mut self, ty: Ty<'tcx>) -> Ty<'tcx> { - if let ty::Opaque(def_id, substs) = *ty.kind() { + if let ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) = *ty.kind() { if def_id == self.opaque_ty_id.0 && substs == self.identity_substs { return self.tcx.mk_ty(ty::Bound( self.binder_index, diff --git a/compiler/rustc_traits/src/chalk/lowering.rs b/compiler/rustc_traits/src/chalk/lowering.rs index c4ab86e9e9b..9712abb708f 100644 --- a/compiler/rustc_traits/src/chalk/lowering.rs +++ b/compiler/rustc_traits/src/chalk/lowering.rs @@ -66,15 +66,6 @@ impl<'tcx> LowerInto<'tcx, SubstsRef<'tcx>> for &chalk_ir::Substitution<RustInte } } -impl<'tcx> LowerInto<'tcx, chalk_ir::AliasTy<RustInterner<'tcx>>> for ty::ProjectionTy<'tcx> { - fn lower_into(self, interner: RustInterner<'tcx>) -> chalk_ir::AliasTy<RustInterner<'tcx>> { - chalk_ir::AliasTy::Projection(chalk_ir::ProjectionTy { - associated_ty_id: chalk_ir::AssocTypeId(self.item_def_id), - substitution: self.substs.lower_into(interner), - }) - } -} - impl<'tcx> LowerInto<'tcx, chalk_ir::InEnvironment<chalk_ir::Goal<RustInterner<'tcx>>>> for ChalkEnvironmentAndGoal<'tcx> { @@ -255,7 +246,10 @@ impl<'tcx> LowerInto<'tcx, chalk_ir::AliasEq<RustInterner<'tcx>>> // FIXME(associated_const_equality): teach chalk about terms for alias eq. chalk_ir::AliasEq { ty: self.term.ty().unwrap().lower_into(interner), - alias: self.projection_ty.lower_into(interner), + alias: chalk_ir::AliasTy::Projection(chalk_ir::ProjectionTy { + associated_ty_id: chalk_ir::AssocTypeId(self.projection_ty.def_id), + substitution: self.projection_ty.substs.lower_into(interner), + }), } } } @@ -353,8 +347,13 @@ impl<'tcx> LowerInto<'tcx, chalk_ir::Ty<RustInterner<'tcx>>> for Ty<'tcx> { ty::Tuple(types) => { chalk_ir::TyKind::Tuple(types.len(), types.as_substs().lower_into(interner)) } - ty::Projection(proj) => chalk_ir::TyKind::Alias(proj.lower_into(interner)), - ty::Opaque(def_id, substs) => { + ty::Alias(ty::Projection, ty::AliasTy { def_id, substs, .. }) => { + chalk_ir::TyKind::Alias(chalk_ir::AliasTy::Projection(chalk_ir::ProjectionTy { + associated_ty_id: chalk_ir::AssocTypeId(def_id), + substitution: substs.lower_into(interner), + })) + } + ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => { chalk_ir::TyKind::Alias(chalk_ir::AliasTy::Opaque(chalk_ir::OpaqueTy { opaque_ty_id: chalk_ir::OpaqueTyId(def_id), substitution: substs.lower_into(interner), @@ -442,13 +441,14 @@ impl<'tcx> LowerInto<'tcx, Ty<'tcx>> for &chalk_ir::Ty<RustInterner<'tcx>> { mutbl.lower_into(interner), ), TyKind::Str => ty::Str, - TyKind::OpaqueType(opaque_ty, substitution) => { - ty::Opaque(opaque_ty.0, substitution.lower_into(interner)) - } - TyKind::AssociatedType(assoc_ty, substitution) => ty::Projection(ty::ProjectionTy { - substs: substitution.lower_into(interner), - item_def_id: assoc_ty.0, - }), + TyKind::OpaqueType(opaque_ty, substitution) => ty::Alias( + ty::Opaque, + interner.tcx.mk_alias_ty(opaque_ty.0, substitution.lower_into(interner)), + ), + TyKind::AssociatedType(assoc_ty, substitution) => ty::Alias( + ty::Projection, + interner.tcx.mk_alias_ty(assoc_ty.0, substitution.lower_into(interner)), + ), TyKind::Foreign(def_id) => ty::Foreign(def_id.0), TyKind::Error => return interner.tcx.ty_error(), TyKind::Placeholder(placeholder) => ty::Placeholder(ty::Placeholder { @@ -456,13 +456,20 @@ impl<'tcx> LowerInto<'tcx, Ty<'tcx>> for &chalk_ir::Ty<RustInterner<'tcx>> { name: ty::BoundVar::from_usize(placeholder.idx), }), TyKind::Alias(alias_ty) => match alias_ty { - chalk_ir::AliasTy::Projection(projection) => ty::Projection(ty::ProjectionTy { - item_def_id: projection.associated_ty_id.0, - substs: projection.substitution.lower_into(interner), - }), - chalk_ir::AliasTy::Opaque(opaque) => { - ty::Opaque(opaque.opaque_ty_id.0, opaque.substitution.lower_into(interner)) - } + chalk_ir::AliasTy::Projection(projection) => ty::Alias( + ty::Projection, + interner.tcx.mk_alias_ty( + projection.associated_ty_id.0, + projection.substitution.lower_into(interner), + ), + ), + chalk_ir::AliasTy::Opaque(opaque) => ty::Alias( + ty::Opaque, + interner.tcx.mk_alias_ty( + opaque.opaque_ty_id.0, + opaque.substitution.lower_into(interner), + ), + ), }, TyKind::Function(_quantified_ty) => unimplemented!(), TyKind::BoundVar(_bound) => ty::Bound( @@ -688,7 +695,7 @@ impl<'tcx> LowerInto<'tcx, chalk_ir::Binders<chalk_ir::QuantifiedWhereClauses<Ru binders.clone(), chalk_ir::WhereClause::AliasEq(chalk_ir::AliasEq { alias: chalk_ir::AliasTy::Projection(chalk_ir::ProjectionTy { - associated_ty_id: chalk_ir::AssocTypeId(predicate.item_def_id), + associated_ty_id: chalk_ir::AssocTypeId(predicate.def_id), substitution: interner .tcx .mk_substs_trait(self_ty, predicate.substs) @@ -844,7 +851,7 @@ impl<'tcx> LowerInto<'tcx, chalk_solve::rust_ir::AliasEqBound<RustInterner<'tcx> let (trait_ref, own_substs) = self.projection_ty.trait_ref_and_own_substs(interner.tcx); chalk_solve::rust_ir::AliasEqBound { trait_bound: trait_ref.lower_into(interner), - associated_ty_id: chalk_ir::AssocTypeId(self.projection_ty.item_def_id), + associated_ty_id: chalk_ir::AssocTypeId(self.projection_ty.def_id), parameters: own_substs.iter().map(|arg| arg.lower_into(interner)).collect(), value: self.term.ty().unwrap().lower_into(interner), } diff --git a/compiler/rustc_traits/src/dropck_outlives.rs b/compiler/rustc_traits/src/dropck_outlives.rs index 66ab742f157..3f661ce6923 100644 --- a/compiler/rustc_traits/src/dropck_outlives.rs +++ b/compiler/rustc_traits/src/dropck_outlives.rs @@ -112,7 +112,7 @@ fn dropck_outlives<'tcx>( // A projection that we couldn't resolve - it // might have a destructor. - ty::Projection(..) | ty::Opaque(..) => { + ty::Alias(..) => { result.kinds.push(ty.into()); } @@ -268,7 +268,7 @@ fn dtorck_constraint_for_ty<'tcx>( } // Types that can't be resolved. Pass them forward. - ty::Projection(..) | ty::Opaque(..) | ty::Param(..) => { + ty::Alias(..) | ty::Param(..) => { constraints.dtorck_types.push(ty); } diff --git a/compiler/rustc_ty_utils/src/instance.rs b/compiler/rustc_ty_utils/src/instance.rs index c6f2b16ca21..2da98d33429 100644 --- a/compiler/rustc_ty_utils/src/instance.rs +++ b/compiler/rustc_ty_utils/src/instance.rs @@ -44,7 +44,13 @@ fn inner_resolve_instance<'tcx>( let result = if let Some(trait_def_id) = tcx.trait_of_item(def.did) { debug!(" => associated item, attempting to find impl in param_env {:#?}", param_env); - resolve_associated_item(tcx, def.did, param_env, trait_def_id, substs) + resolve_associated_item( + tcx, + def.did, + param_env, + trait_def_id, + tcx.normalize_erasing_regions(param_env, substs), + ) } else { let ty = tcx.type_of(def.def_id_for_type_of()); let item_type = tcx.subst_and_normalize_erasing_regions(substs, param_env, ty); diff --git a/compiler/rustc_ty_utils/src/layout.rs b/compiler/rustc_ty_utils/src/layout.rs index f4672a70072..c761a4dbe45 100644 --- a/compiler/rustc_ty_utils/src/layout.rs +++ b/compiler/rustc_ty_utils/src/layout.rs @@ -444,7 +444,7 @@ fn layout_of_uncached<'tcx>( } // Types with no meaningful known layout. - ty::Projection(_) | ty::Opaque(..) => { + ty::Alias(..) => { // NOTE(eddyb) `layout_of` query should've normalized these away, // if that was possible, so there's no reason to try again here. return Err(LayoutError::Unknown(ty)); @@ -919,7 +919,7 @@ fn variant_info_for_generator<'tcx>( def_id: DefId, substs: ty::SubstsRef<'tcx>, ) -> (Vec<VariantInfo>, Option<Size>) { - let Variants::Multiple { tag, ref tag_encoding, .. } = layout.variants else { + let Variants::Multiple { tag, ref tag_encoding, tag_field, .. } = layout.variants else { return (vec![], None); }; @@ -975,12 +975,28 @@ fn variant_info_for_generator<'tcx>( if variant_size == Size::ZERO { variant_size = upvars_size; } - // We need to add the discriminant size back into min_size, since it is subtracted - // later during printing. - variant_size += match tag_encoding { - TagEncoding::Direct => tag.size(cx), - _ => Size::ZERO, - }; + + // This `if` deserves some explanation. + // + // The layout code has a choice of where to place the discriminant of this generator. + // If the discriminant of the generator is placed early in the layout (before the + // variant's own fields), then it'll implicitly be counted towards the size of the + // variant, since we use the maximum offset to calculate size. + // (side-note: I know this is a bit problematic given upvars placement, etc). + // + // This is important, since the layout printing code always subtracts this discriminant + // size from the variant size if the struct is "enum"-like, so failing to account for it + // will either lead to numerical underflow, or an underreported variant size... + // + // However, if the discriminant is placed past the end of the variant, then we need + // to factor in the size of the discriminant manually. This really should be refactored + // better, but this "works" for now. + if layout.fields.offset(tag_field) >= variant_size { + variant_size += match tag_encoding { + TagEncoding::Direct => tag.size(cx), + _ => Size::ZERO, + }; + } VariantInfo { name: Some(Symbol::intern(&ty::GeneratorSubsts::variant_name(variant_idx))), diff --git a/compiler/rustc_ty_utils/src/needs_drop.rs b/compiler/rustc_ty_utils/src/needs_drop.rs index 024dcd591bd..0df060fc5fb 100644 --- a/compiler/rustc_ty_utils/src/needs_drop.rs +++ b/compiler/rustc_ty_utils/src/needs_drop.rs @@ -152,7 +152,7 @@ where queue_type(self, required); } } - ty::Array(..) | ty::Opaque(..) | ty::Projection(..) | ty::Param(_) => { + ty::Array(..) | ty::Alias(..) | ty::Param(_) => { if ty == component { // Return the type to the caller: they may be able // to normalize further than we can. diff --git a/compiler/rustc_ty_utils/src/ty.rs b/compiler/rustc_ty_utils/src/ty.rs index 5fc9bcac1b1..5279fc69a31 100644 --- a/compiler/rustc_ty_utils/src/ty.rs +++ b/compiler/rustc_ty_utils/src/ty.rs @@ -37,7 +37,7 @@ fn sized_constraint_for_ty<'tcx>( .collect() } - Projection(..) | Opaque(..) => { + Alias(..) => { // must calculate explicitly. // FIXME: consider special-casing always-Sized projections vec![ty] diff --git a/compiler/rustc_type_ir/src/lib.rs b/compiler/rustc_type_ir/src/lib.rs index e3f7a1bd033..c992dbccd62 100644 --- a/compiler/rustc_type_ir/src/lib.rs +++ b/compiler/rustc_type_ir/src/lib.rs @@ -42,7 +42,7 @@ pub trait Interner { type ListBinderExistentialPredicate: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord; type BinderListTy: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord; type ListTy: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord; - type ProjectionTy: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord; + type AliasTy: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord; type ParamTy: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord; type BoundTy: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord; type PlaceholderType: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord; diff --git a/compiler/rustc_type_ir/src/sty.rs b/compiler/rustc_type_ir/src/sty.rs index 9aa2be124e2..f30ae82d7cd 100644 --- a/compiler/rustc_type_ir/src/sty.rs +++ b/compiler/rustc_type_ir/src/sty.rs @@ -19,19 +19,8 @@ use rustc_data_structures::stable_hasher::HashStable; use rustc_serialize::{Decodable, Decoder, Encodable}; /// Specifies how a trait object is represented. -#[derive( - Clone, - Copy, - PartialEq, - Eq, - PartialOrd, - Ord, - Hash, - Debug, - Encodable, - Decodable, - HashStable_Generic -)] +#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug)] +#[derive(Encodable, Decodable, HashStable_Generic)] pub enum DynKind { /// An unsized `dyn Trait` object Dyn, @@ -46,6 +35,13 @@ pub enum DynKind { DynStar, } +#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug)] +#[derive(Encodable, Decodable, HashStable_Generic)] +pub enum AliasKind { + Projection, + Opaque, +} + /// Defines the kinds of types used by the type system. /// /// Types written by the user start out as `hir::TyKind` and get @@ -170,21 +166,8 @@ pub enum TyKind<I: Interner> { /// A tuple type. For example, `(i32, bool)`. Tuple(I::ListTy), - /// The projection of an associated type. For example, - /// `<T as Trait<..>>::N`. - Projection(I::ProjectionTy), - - /// Opaque (`impl Trait`) type found in a return type. - /// - /// The `DefId` comes either from - /// * the `impl Trait` ast::Ty node, - /// * or the `type Foo = impl Trait` declaration - /// - /// For RPIT the substitutions are for the generics of the function, - /// while for TAIT it is used for the generic parameters of the alias. - /// - /// During codegen, `tcx.type_of(def_id)` can be used to get the underlying type. - Opaque(I::DefId, I::SubstsRef), + /// A projection or opaque type. Both of these types + Alias(AliasKind, I::AliasTy), /// A type parameter; for example, `T` in `fn f<T>(x: T) {}`. Param(I::ParamTy), @@ -252,13 +235,12 @@ const fn tykind_discriminant<I: Interner>(value: &TyKind<I>) -> usize { GeneratorWitness(_) => 17, Never => 18, Tuple(_) => 19, - Projection(_) => 20, - Opaque(_, _) => 21, - Param(_) => 22, - Bound(_, _) => 23, - Placeholder(_) => 24, - Infer(_) => 25, - Error(_) => 26, + Alias(_, _) => 20, + Param(_) => 21, + Bound(_, _) => 22, + Placeholder(_) => 23, + Infer(_) => 24, + Error(_) => 25, } } @@ -268,9 +250,9 @@ impl<I: Interner> Clone for TyKind<I> { match self { Bool => Bool, Char => Char, - Int(i) => Int(i.clone()), - Uint(u) => Uint(u.clone()), - Float(f) => Float(f.clone()), + Int(i) => Int(*i), + Uint(u) => Uint(*u), + Float(f) => Float(*f), Adt(d, s) => Adt(d.clone(), s.clone()), Foreign(d) => Foreign(d.clone()), Str => Str, @@ -280,16 +262,15 @@ impl<I: Interner> Clone for TyKind<I> { Ref(r, t, m) => Ref(r.clone(), t.clone(), m.clone()), FnDef(d, s) => FnDef(d.clone(), s.clone()), FnPtr(s) => FnPtr(s.clone()), - Dynamic(p, r, repr) => Dynamic(p.clone(), r.clone(), repr.clone()), + Dynamic(p, r, repr) => Dynamic(p.clone(), r.clone(), *repr), Closure(d, s) => Closure(d.clone(), s.clone()), Generator(d, s, m) => Generator(d.clone(), s.clone(), m.clone()), GeneratorWitness(g) => GeneratorWitness(g.clone()), Never => Never, Tuple(t) => Tuple(t.clone()), - Projection(p) => Projection(p.clone()), - Opaque(d, s) => Opaque(d.clone(), s.clone()), + Alias(k, p) => Alias(*k, p.clone()), Param(p) => Param(p.clone()), - Bound(d, b) => Bound(d.clone(), b.clone()), + Bound(d, b) => Bound(*d, b.clone()), Placeholder(p) => Placeholder(p.clone()), Infer(t) => Infer(t.clone()), Error(e) => Error(e.clone()), @@ -323,8 +304,7 @@ impl<I: Interner> PartialEq for TyKind<I> { } (GeneratorWitness(a_g), GeneratorWitness(b_g)) => a_g == b_g, (Tuple(a_t), Tuple(b_t)) => a_t == b_t, - (Projection(a_p), Projection(b_p)) => a_p == b_p, - (Opaque(a_d, a_s), Opaque(b_d, b_s)) => a_d == b_d && a_s == b_s, + (Alias(a_i, a_p), Alias(b_i, b_p)) => a_i == b_i && a_p == b_p, (Param(a_p), Param(b_p)) => a_p == b_p, (Bound(a_d, a_b), Bound(b_d, b_b)) => a_d == b_d && a_b == b_b, (Placeholder(a_p), Placeholder(b_p)) => a_p == b_p, @@ -381,8 +361,7 @@ impl<I: Interner> Ord for TyKind<I> { } (GeneratorWitness(a_g), GeneratorWitness(b_g)) => a_g.cmp(b_g), (Tuple(a_t), Tuple(b_t)) => a_t.cmp(b_t), - (Projection(a_p), Projection(b_p)) => a_p.cmp(b_p), - (Opaque(a_d, a_s), Opaque(b_d, b_s)) => a_d.cmp(b_d).then_with(|| a_s.cmp(b_s)), + (Alias(a_i, a_p), Alias(b_i, b_p)) => a_i.cmp(b_i).then_with(|| a_p.cmp(b_p)), (Param(a_p), Param(b_p)) => a_p.cmp(b_p), (Bound(a_d, a_b), Bound(b_d, b_b)) => a_d.cmp(b_d).then_with(|| a_b.cmp(b_b)), (Placeholder(a_p), Placeholder(b_p)) => a_p.cmp(b_p), @@ -443,10 +422,9 @@ impl<I: Interner> hash::Hash for TyKind<I> { } GeneratorWitness(g) => g.hash(state), Tuple(t) => t.hash(state), - Projection(p) => p.hash(state), - Opaque(d, s) => { - d.hash(state); - s.hash(state) + Alias(i, p) => { + i.hash(state); + p.hash(state); } Param(p) => p.hash(state), Bound(d, b) => { @@ -485,8 +463,7 @@ impl<I: Interner> fmt::Debug for TyKind<I> { GeneratorWitness(g) => f.debug_tuple_field1_finish("GeneratorWitness", g), Never => f.write_str("Never"), Tuple(t) => f.debug_tuple_field1_finish("Tuple", t), - Projection(p) => f.debug_tuple_field1_finish("Projection", p), - Opaque(d, s) => f.debug_tuple_field2_finish("Opaque", d, s), + Alias(i, a) => f.debug_tuple_field2_finish("Alias", i, a), Param(p) => f.debug_tuple_field1_finish("Param", p), Bound(d, b) => f.debug_tuple_field2_finish("Bound", d, b), Placeholder(p) => f.debug_tuple_field1_finish("Placeholder", p), @@ -513,7 +490,7 @@ where I::ListBinderExistentialPredicate: Encodable<E>, I::BinderListTy: Encodable<E>, I::ListTy: Encodable<E>, - I::ProjectionTy: Encodable<E>, + I::AliasTy: Encodable<E>, I::ParamTy: Encodable<E>, I::BoundTy: Encodable<E>, I::PlaceholderType: Encodable<E>, @@ -586,13 +563,10 @@ where Tuple(substs) => e.emit_enum_variant(disc, |e| { substs.encode(e); }), - Projection(p) => e.emit_enum_variant(disc, |e| { + Alias(k, p) => e.emit_enum_variant(disc, |e| { + k.encode(e); p.encode(e); }), - Opaque(def_id, substs) => e.emit_enum_variant(disc, |e| { - def_id.encode(e); - substs.encode(e); - }), Param(p) => e.emit_enum_variant(disc, |e| { p.encode(e); }), @@ -630,8 +604,9 @@ where I::ListBinderExistentialPredicate: Decodable<D>, I::BinderListTy: Decodable<D>, I::ListTy: Decodable<D>, - I::ProjectionTy: Decodable<D>, + I::AliasTy: Decodable<D>, I::ParamTy: Decodable<D>, + I::AliasTy: Decodable<D>, I::BoundTy: Decodable<D>, I::PlaceholderType: Decodable<D>, I::InferTy: Decodable<D>, @@ -660,13 +635,12 @@ where 17 => GeneratorWitness(Decodable::decode(d)), 18 => Never, 19 => Tuple(Decodable::decode(d)), - 20 => Projection(Decodable::decode(d)), - 21 => Opaque(Decodable::decode(d), Decodable::decode(d)), - 22 => Param(Decodable::decode(d)), - 23 => Bound(Decodable::decode(d), Decodable::decode(d)), - 24 => Placeholder(Decodable::decode(d)), - 25 => Infer(Decodable::decode(d)), - 26 => Error(Decodable::decode(d)), + 20 => Alias(Decodable::decode(d), Decodable::decode(d)), + 21 => Param(Decodable::decode(d)), + 22 => Bound(Decodable::decode(d), Decodable::decode(d)), + 23 => Placeholder(Decodable::decode(d)), + 24 => Infer(Decodable::decode(d)), + 25 => Error(Decodable::decode(d)), _ => panic!( "{}", format!( @@ -695,7 +669,7 @@ where I::Mutability: HashStable<CTX>, I::BinderListTy: HashStable<CTX>, I::ListTy: HashStable<CTX>, - I::ProjectionTy: HashStable<CTX>, + I::AliasTy: HashStable<CTX>, I::BoundTy: HashStable<CTX>, I::ParamTy: HashStable<CTX>, I::PlaceholderType: HashStable<CTX>, @@ -772,13 +746,10 @@ where Tuple(substs) => { substs.hash_stable(__hcx, __hasher); } - Projection(p) => { + Alias(k, p) => { + k.hash_stable(__hcx, __hasher); p.hash_stable(__hcx, __hasher); } - Opaque(def_id, substs) => { - def_id.hash_stable(__hcx, __hasher); - substs.hash_stable(__hcx, __hasher); - } Param(p) => { p.hash_stable(__hcx, __hasher); } @@ -965,7 +936,7 @@ impl<I: Interner> Clone for RegionKind<I> { fn clone(&self) -> Self { match self { ReEarlyBound(r) => ReEarlyBound(r.clone()), - ReLateBound(d, r) => ReLateBound(d.clone(), r.clone()), + ReLateBound(d, r) => ReLateBound(*d, r.clone()), ReFree(r) => ReFree(r.clone()), ReStatic => ReStatic, ReVar(r) => ReVar(r.clone()), diff --git a/library/alloc/src/collections/vec_deque/mod.rs b/library/alloc/src/collections/vec_deque/mod.rs index 4b9bd74d392..be615b70ced 100644 --- a/library/alloc/src/collections/vec_deque/mod.rs +++ b/library/alloc/src/collections/vec_deque/mod.rs @@ -2541,7 +2541,7 @@ impl<T, A: Allocator> VecDeque<T, A> { /// The deque is assumed to be partitioned according to the given predicate. /// This means that all elements for which the predicate returns true are at the start of the deque /// and all elements for which the predicate returns false are at the end. - /// For example, [7, 15, 3, 5, 4, 12, 6] is a partitioned under the predicate x % 2 != 0 + /// For example, `[7, 15, 3, 5, 4, 12, 6]` is partitioned under the predicate `x % 2 != 0` /// (all odd numbers are at the start, all even at the end). /// /// If the deque is not partitioned, the returned result is unspecified and meaningless, diff --git a/library/alloc/src/fmt.rs b/library/alloc/src/fmt.rs index 799ce9d5daa..eadb35cb96d 100644 --- a/library/alloc/src/fmt.rs +++ b/library/alloc/src/fmt.rs @@ -419,7 +419,7 @@ //! // documentation for details, and the function `pad` can be used //! // to pad strings. //! let decimals = f.precision().unwrap_or(3); -//! let string = format!("{:.*}", decimals, magnitude); +//! let string = format!("{magnitude:.decimals$}"); //! f.pad_integral(true, "", &string) //! } //! } @@ -518,7 +518,7 @@ //! write!(&mut some_writer, "{}", format_args!("print with a {}", "macro")); //! //! fn my_fmt_fn(args: fmt::Arguments) { -//! write!(&mut io::stdout(), "{}", args); +//! write!(&mut io::stdout(), "{args}"); //! } //! my_fmt_fn(format_args!(", or a {} too", "function")); //! ``` diff --git a/library/core/src/array/mod.rs b/library/core/src/array/mod.rs index 94a1a1d32bc..2825e0bbb43 100644 --- a/library/core/src/array/mod.rs +++ b/library/core/src/array/mod.rs @@ -69,7 +69,7 @@ where /// if any element creation was unsuccessful. /// /// The return type of this function depends on the return type of the closure. -/// If you return `Result<T, E>` from the closure, you'll get a `Result<[T; N]; E>`. +/// If you return `Result<T, E>` from the closure, you'll get a `Result<[T; N], E>`. /// If you return `Option<T>` from the closure, you'll get an `Option<[T; N]>`. /// /// # Arguments @@ -522,7 +522,7 @@ impl<T, const N: usize> [T; N] { /// return an array the same size as `self` or the first error encountered. /// /// The return type of this function depends on the return type of the closure. - /// If you return `Result<T, E>` from the closure, you'll get a `Result<[T; N]; E>`. + /// If you return `Result<T, E>` from the closure, you'll get a `Result<[T; N], E>`. /// If you return `Option<T>` from the closure, you'll get an `Option<[T; N]>`. /// /// # Examples diff --git a/library/core/src/borrow.rs b/library/core/src/borrow.rs index fdd56cb4eaa..4a8302ee404 100644 --- a/library/core/src/borrow.rs +++ b/library/core/src/borrow.rs @@ -26,7 +26,7 @@ /// to be modified, it can additionally implement [`BorrowMut<T>`]. /// /// Further, when providing implementations for additional traits, it needs -/// to be considered whether they should behave identical to those of the +/// to be considered whether they should behave identically to those of the /// underlying type as a consequence of acting as a representation of that /// underlying type. Generic code typically uses `Borrow<T>` when it relies /// on the identical behavior of these additional trait implementations. diff --git a/library/core/src/fmt/mod.rs b/library/core/src/fmt/mod.rs index 48b6177434b..122da675f7e 100644 --- a/library/core/src/fmt/mod.rs +++ b/library/core/src/fmt/mod.rs @@ -405,7 +405,7 @@ impl<'a> Arguments<'a> { /// 1. The `pieces` slice must be at least as long as `fmt`. /// 2. Every [`rt::v1::Argument::position`] value within `fmt` must be a /// valid index of `args`. - /// 3. Every [`Count::Param`] within `fmt` must contain a valid index of + /// 3. Every [`rt::v1::Count::Param`] within `fmt` must contain a valid index of /// `args`. #[doc(hidden)] #[inline] diff --git a/library/core/src/intrinsics/mir.rs b/library/core/src/intrinsics/mir.rs index 8ba1c122884..e08a15571fc 100644 --- a/library/core/src/intrinsics/mir.rs +++ b/library/core/src/intrinsics/mir.rs @@ -21,15 +21,14 @@ //! #[custom_mir(dialect = "built")] //! pub fn simple(x: i32) -> i32 { //! mir!( -//! let temp1: i32; -//! let temp2: _; +//! let temp2: i32; //! //! { -//! temp1 = x; -//! Goto(exit) +//! let temp1 = x; +//! Goto(my_second_block) //! } //! -//! exit = { +//! my_second_block = { //! temp2 = Move(temp1); //! RET = temp2; //! Return() @@ -38,22 +37,199 @@ //! } //! ``` //! -//! Hopefully most of this is fairly self-explanatory. Expanding on some notable details: +//! The `custom_mir` attribute tells the compiler to treat the function as being custom MIR. This +//! attribute only works on functions - there is no way to insert custom MIR into the middle of +//! another function. The `dialect` and `phase` parameters indicate which [version of MIR][dialect +//! docs] you are inserting here. Generally you'll want to use `#![custom_mir(dialect = "built")]` +//! if you want your MIR to be modified by the full MIR pipeline, or `#![custom_mir(dialect = +//! "runtime", phase = "optimized")] if you don't. //! -//! - The `custom_mir` attribute tells the compiler to treat the function as being custom MIR. This -//! attribute only works on functions - there is no way to insert custom MIR into the middle of -//! another function. -//! - The `dialect` and `phase` parameters indicate which version of MIR you are inserting here. -//! This will normally be the phase that corresponds to the thing you are trying to test. The -//! phase can be omitted for dialects that have just one. -//! - You should define your function signature like you normally would. Externally, this function -//! can be called like any other function. -//! - Type inference works - you don't have to spell out the type of all of your locals. +//! [dialect docs]: +//! https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/mir/enum.MirPhase.html //! -//! For now, all statements and terminators are parsed from nested invocations of the special -//! functions provided in this module. We additionally want to (but do not yet) support more -//! "normal" Rust syntax in places where it makes sense. Also, most kinds of instructions are not -//! supported yet. +//! The input to the [`mir!`] macro is: +//! +//! - A possibly empty list of local declarations. Locals can also be declared inline on +//! assignments via `let`. Type inference generally works. Shadowing does not. +//! - A list of basic blocks. The first of these is the start block and is where execution begins. +//! All blocks other than the start block need to be given a name, so that they can be referred +//! to later. +//! - Each block is a list of semicolon terminated statements, followed by a terminator. The +//! syntax for the various statements and terminators is designed to be as similar as possible +//! to the syntax for analogous concepts in native Rust. See below for a list. +//! +//! # Examples +//! +//! ```rust +//! #![feature(core_intrinsics, custom_mir)] +//! +//! extern crate core; +//! use core::intrinsics::mir::*; +//! +//! #[custom_mir(dialect = "built")] +//! pub fn choose_load(a: &i32, b: &i32, c: bool) -> i32 { +//! mir!( +//! { +//! match c { +//! true => t, +//! _ => f, +//! } +//! } +//! +//! t = { +//! let temp = a; +//! Goto(load_and_exit) +//! } +//! +//! f = { +//! temp = b; +//! Goto(load_and_exit) +//! } +//! +//! load_and_exit = { +//! RET = *temp; +//! Return() +//! } +//! ) +//! } +//! +//! #[custom_mir(dialect = "built")] +//! fn unwrap_unchecked<T>(opt: Option<T>) -> T { +//! mir!({ +//! RET = Move(Field(Variant(opt, 1), 0)); +//! Return() +//! }) +//! } +//! +//! #[custom_mir(dialect = "runtime", phase = "optimized")] +//! fn push_and_pop<T>(v: &mut Vec<T>, value: T) { +//! mir!( +//! let unused; +//! let popped; +//! +//! { +//! Call(unused, pop, Vec::push(v, value)) +//! } +//! +//! pop = { +//! Call(popped, drop, Vec::pop(v)) +//! } +//! +//! drop = { +//! Drop(popped, ret) +//! } +//! +//! ret = { +//! Return() +//! } +//! ) +//! } +//! ``` +//! +//! We can also set off compilation failures that happen in sufficiently late stages of the +//! compiler: +//! +//! ```rust,compile_fail +//! #![feature(core_intrinsics, custom_mir)] +//! +//! extern crate core; +//! use core::intrinsics::mir::*; +//! +//! #[custom_mir(dialect = "built")] +//! fn borrow_error(should_init: bool) -> i32 { +//! mir!( +//! let temp: i32; +//! +//! { +//! match should_init { +//! true => init, +//! _ => use_temp, +//! } +//! } +//! +//! init = { +//! temp = 0; +//! Goto(use_temp) +//! } +//! +//! use_temp = { +//! RET = temp; +//! Return() +//! } +//! ) +//! } +//! ``` +//! +//! ```text +//! error[E0381]: used binding is possibly-uninitialized +//! --> test.rs:24:13 +//! | +//! 8 | / mir!( +//! 9 | | let temp: i32; +//! 10 | | +//! 11 | | { +//! ... | +//! 19 | | temp = 0; +//! | | -------- binding initialized here in some conditions +//! ... | +//! 24 | | RET = temp; +//! | | ^^^^^^^^^^ value used here but it is possibly-uninitialized +//! 25 | | Return() +//! 26 | | } +//! 27 | | ) +//! | |_____- binding declared here but left uninitialized +//! +//! error: aborting due to previous error +//! +//! For more information about this error, try `rustc --explain E0381`. +//! ``` +//! +//! # Syntax +//! +//! The lists below are an exhaustive description of how various MIR constructs can be created. +//! Anything missing from the list should be assumed to not be supported, PRs welcome. +//! +//! #### Locals +//! +//! - The `_0` return local can always be accessed via `RET`. +//! - Arguments can be accessed via their regular name. +//! - All other locals need to be declared with `let` somewhere and then can be accessed by name. +//! +//! #### Places +//! - Locals implicit convert to places. +//! - Field accesses, derefs, and indexing work normally. +//! - Fields in variants can be accessed via the [`Variant`] and [`Field`] associated functions, +//! see their documentation for details. +//! +//! #### Operands +//! - Places implicitly convert to `Copy` operands. +//! - `Move` operands can be created via [`Move`]. +//! - Const blocks, literals, named constants, and const params all just work. +//! - [`Static`] and [`StaticMut`] can be used to create `&T` and `*mut T`s to statics. These are +//! constants in MIR and the only way to access statics. +//! +//! #### Statements +//! - Assign statements work via normal Rust assignment. +//! - [`Retag`] statements have an associated function. +//! +//! #### Rvalues +//! +//! - Operands implicitly convert to `Use` rvalues. +//! - `&`, `&mut`, `addr_of!`, and `addr_of_mut!` all work to create their associated rvalue. +//! - [`Discriminant`] has an associated function. +//! +//! #### Terminators +//! +//! Custom MIR does not currently support cleanup blocks or non-trivial unwind paths. As such, there +//! are no resume and abort terminators, and terminators that might unwind do not have any way to +//! indicate the unwind block. +//! +//! - [`Goto`], [`Return`], [`Unreachable`], [`Drop`](Drop()), and [`DropAndReplace`] have associated functions. +//! - `match some_int_operand` becomes a `SwitchInt`. Each arm should be `literal => basic_block` +//! - The exception is the last arm, which must be `_ => basic_block` and corresponds to the +//! otherwise branch. +//! - [`Call`] has an associated function as well. The third argument of this function is a normal +//! function call expresion, for example `my_other_function(a, 5)`. //! #![unstable( @@ -69,21 +245,91 @@ pub struct BasicBlock; macro_rules! define { - ($name:literal, $($sig:tt)*) => { + ($name:literal, $( #[ $meta:meta ] )* fn $($sig:tt)*) => { #[rustc_diagnostic_item = $name] - pub $($sig)* { panic!() } + $( #[ $meta ] )* + pub fn $($sig)* { panic!() } } } define!("mir_return", fn Return() -> BasicBlock); define!("mir_goto", fn Goto(destination: BasicBlock) -> BasicBlock); +define!("mir_unreachable", fn Unreachable() -> BasicBlock); +define!("mir_drop", fn Drop<T>(place: T, goto: BasicBlock)); +define!("mir_drop_and_replace", fn DropAndReplace<T>(place: T, value: T, goto: BasicBlock)); +define!("mir_call", fn Call<T>(place: T, goto: BasicBlock, call: T)); define!("mir_retag", fn Retag<T>(place: T)); define!("mir_retag_raw", fn RetagRaw<T>(place: T)); define!("mir_move", fn Move<T>(place: T) -> T); define!("mir_static", fn Static<T>(s: T) -> &'static T); define!("mir_static_mut", fn StaticMut<T>(s: T) -> *mut T); +define!( + "mir_discriminant", + /// Gets the discriminant of a place. + fn Discriminant<T>(place: T) -> <T as ::core::marker::DiscriminantKind>::Discriminant +); +define!("mir_set_discriminant", fn SetDiscriminant<T>(place: T, index: u32)); +define!( + "mir_field", + /// Access the field with the given index of some place. + /// + /// This only makes sense to use in conjunction with [`Variant`]. If the type you are looking to + /// access the field of does not have variants, you can use normal field projection syntax. + /// + /// There is no proper way to do a place projection to a variant in Rust, and so these two + /// functions are a workaround. You can access a field of a variant via `Field(Variant(place, + /// var_idx), field_idx)`, where `var_idx` and `field_idx` are appropriate literals. Some + /// caveats: + /// + /// - The return type of `Variant` is always `()`. Don't worry about that, the correct MIR will + /// still be generated. + /// - In some situations, the return type of `Field` cannot be inferred. You may need to + /// annotate it on the function in these cases. + /// - Since `Field` is a function call which is not a place expression, using this on the left + /// hand side of an expression is rejected by the compiler. [`place!`] is a macro provided to + /// work around that issue. Wrap the left hand side of an assignment in the macro to convince + /// the compiler that it's ok. + /// + /// # Examples + /// + /// ```rust + /// #![feature(custom_mir, core_intrinsics)] + /// + /// extern crate core; + /// use core::intrinsics::mir::*; + /// + /// #[custom_mir(dialect = "built")] + /// fn unwrap_deref(opt: Option<&i32>) -> i32 { + /// mir!({ + /// RET = *Field::<&i32>(Variant(opt, 1), 0); + /// Return() + /// }) + /// } + /// + /// #[custom_mir(dialect = "built")] + /// fn set(opt: &mut Option<i32>) { + /// mir!({ + /// place!(Field(Variant(*opt, 1), 0)) = 5; + /// Return() + /// }) + /// } + /// ``` + fn Field<F>(place: (), field: u32) -> F +); +define!( + "mir_variant", + /// Adds a variant projection with the given index to the place. + /// + /// See [`Field`] for documentation. + fn Variant<T>(place: T, index: u32) -> () +); +define!( + "mir_make_place", + #[doc(hidden)] + fn __internal_make_place<T>(place: T) -> *mut T +); -/// Convenience macro for generating custom MIR. +/// Macro for generating custom MIR. /// /// See the module documentation for syntax details. This macro is not magic - it only transforms /// your MIR into something that is easier to parse in the compiler. @@ -139,6 +385,13 @@ pub macro mir { }} } +/// Helper macro that allows you to treat a value expression like a place expression. +/// +/// See the documentation on [`Variant`] for why this is necessary and how to use it. +pub macro place($e:expr) { + (*::core::intrinsics::mir::__internal_make_place($e)) +} + /// Helper macro that extracts the `let` declarations out of a bunch of statements. /// /// This macro is written using the "statement muncher" strategy. Each invocation parses the first diff --git a/library/core/src/iter/traits/iterator.rs b/library/core/src/iter/traits/iterator.rs index 83c7e8977e9..bac836292f8 100644 --- a/library/core/src/iter/traits/iterator.rs +++ b/library/core/src/iter/traits/iterator.rs @@ -1829,6 +1829,7 @@ pub trait Iterator { #[inline] #[stable(feature = "rust1", since = "1.0.0")] #[must_use = "if you really need to exhaust the iterator, consider `.for_each(drop)` instead"] + #[cfg_attr(not(test), rustc_diagnostic_item = "iterator_collect_fn")] fn collect<B: FromIterator<Self::Item>>(self) -> B where Self: Sized, @@ -2733,7 +2734,7 @@ pub trait Iterator { /// the first true result or the first error. /// /// The return type of this method depends on the return type of the closure. - /// If you return `Result<bool, E>` from the closure, you'll get a `Result<Option<Self::Item>; E>`. + /// If you return `Result<bool, E>` from the closure, you'll get a `Result<Option<Self::Item>, E>`. /// If you return `Option<bool>` from the closure, you'll get an `Option<Option<Self::Item>>`. /// /// # Examples diff --git a/library/core/src/option.rs b/library/core/src/option.rs index 505d964e518..39462dca4ff 100644 --- a/library/core/src/option.rs +++ b/library/core/src/option.rs @@ -72,6 +72,50 @@ //! } //! ``` //! +//! # The question mark operator, `?` +//! +//! Similar to the [`Result`] type, when writing code that calls many functions that return the +//! [`Option`] type, handling `Some`/`None` can be tedious. The question mark +//! operator, [`?`], hides some of the boilerplate of propagating values +//! up the call stack. +//! +//! It replaces this: +//! +//! ``` +//! # #![allow(dead_code)] +//! fn add_last_numbers(stack: &mut Vec<i32>) -> Option<i32> { +//! let a = stack.pop(); +//! let b = stack.pop(); +//! +//! match (a, b) { +//! (Some(x), Some(y)) => Some(x + y), +//! _ => None, +//! } +//! } +//! +//! ``` +//! +//! With this: +//! +//! ``` +//! # #![allow(dead_code)] +//! fn add_last_numbers(stack: &mut Vec<i32>) -> Option<i32> { +//! Some(stack.pop()? + stack.pop()?) +//! } +//! ``` +//! +//! *It's much nicer!* +//! +//! Ending the expression with [`?`] will result in the [`Some`]'s unwrapped value, unless the +//! result is [`None`], in which case [`None`] is returned early from the enclosing function. +//! +//! [`?`] can be used in functions that return [`Option`] because of the +//! early return of [`None`] that it provides. +//! +//! [`?`]: crate::ops::Try +//! [`Some`]: Some +//! [`None`]: None +//! //! # Representation //! //! Rust guarantees to optimize the following types `T` such that diff --git a/library/core/src/result.rs b/library/core/src/result.rs index 3f33c5fd6ca..f00c40f35d5 100644 --- a/library/core/src/result.rs +++ b/library/core/src/result.rs @@ -209,11 +209,10 @@ //! //! *It's much nicer!* //! -//! Ending the expression with [`?`] will result in the unwrapped -//! success ([`Ok`]) value, unless the result is [`Err`], in which case -//! [`Err`] is returned early from the enclosing function. +//! Ending the expression with [`?`] will result in the [`Ok`]'s unwrapped value, unless the result +//! is [`Err`], in which case [`Err`] is returned early from the enclosing function. //! -//! [`?`] can only be used in functions that return [`Result`] because of the +//! [`?`] can be used in functions that return [`Result`] because of the //! early return of [`Err`] that it provides. //! //! [`expect`]: Result::expect diff --git a/library/core/src/slice/mod.rs b/library/core/src/slice/mod.rs index d9281a9252c..8bd2ed45c0a 100644 --- a/library/core/src/slice/mod.rs +++ b/library/core/src/slice/mod.rs @@ -3795,7 +3795,7 @@ impl<T> [T] { /// The slice is assumed to be partitioned according to the given predicate. /// This means that all elements for which the predicate returns true are at the start of the slice /// and all elements for which the predicate returns false are at the end. - /// For example, [7, 15, 3, 5, 4, 12, 6] is a partitioned under the predicate x % 2 != 0 + /// For example, `[7, 15, 3, 5, 4, 12, 6]` is partitioned under the predicate `x % 2 != 0` /// (all odd numbers are at the start, all even at the end). /// /// If this slice is not partitioned, the returned result is unspecified and meaningless, diff --git a/library/core/src/sync/exclusive.rs b/library/core/src/sync/exclusive.rs index c65c275000c..301ad41c966 100644 --- a/library/core/src/sync/exclusive.rs +++ b/library/core/src/sync/exclusive.rs @@ -138,7 +138,7 @@ impl<T: ?Sized> Exclusive<T> { unsafe { Pin::new_unchecked(&mut self.get_unchecked_mut().inner) } } - /// Build a _mutable_ references to an `Exclusive<T>` from + /// Build a _mutable_ reference to an `Exclusive<T>` from /// a _mutable_ reference to a `T`. This allows you to skip /// building an `Exclusive` with [`Exclusive::new`]. #[unstable(feature = "exclusive_wrapper", issue = "98407")] @@ -149,7 +149,7 @@ impl<T: ?Sized> Exclusive<T> { unsafe { &mut *(r as *mut T as *mut Exclusive<T>) } } - /// Build a _pinned mutable_ references to an `Exclusive<T>` from + /// Build a _pinned mutable_ reference to an `Exclusive<T>` from /// a _pinned mutable_ reference to a `T`. This allows you to skip /// building an `Exclusive` with [`Exclusive::new`]. #[unstable(feature = "exclusive_wrapper", issue = "98407")] diff --git a/library/proc_macro/src/lib.rs b/library/proc_macro/src/lib.rs index 0d3fc2c5244..f0e4f5d8a80 100644 --- a/library/proc_macro/src/lib.rs +++ b/library/proc_macro/src/lib.rs @@ -1493,7 +1493,7 @@ pub mod tracked_env { use std::ffi::OsStr; /// Retrieve an environment variable and add it to build dependency info. - /// Build system executing the compiler will know that the variable was accessed during + /// The build system executing the compiler will know that the variable was accessed during /// compilation, and will be able to rerun the build when the value of that variable changes. /// Besides the dependency tracking this function should be equivalent to `env::var` from the /// standard library, except that the argument must be UTF-8. diff --git a/library/std/src/path.rs b/library/std/src/path.rs index 6c957c2fa90..a835b855ddd 100644 --- a/library/std/src/path.rs +++ b/library/std/src/path.rs @@ -1748,6 +1748,14 @@ impl ops::Deref for PathBuf { } } +#[stable(feature = "path_buf_deref_mut", since = "CURRENT_RUSTC_VERSION")] +impl ops::DerefMut for PathBuf { + #[inline] + fn deref_mut(&mut self) -> &mut Path { + Path::from_inner_mut(&mut self.inner) + } +} + #[stable(feature = "rust1", since = "1.0.0")] impl Borrow<Path> for PathBuf { #[inline] @@ -2000,6 +2008,12 @@ impl Path { unsafe { &*(s.as_ref() as *const OsStr as *const Path) } } + fn from_inner_mut(inner: &mut OsStr) -> &mut Path { + // SAFETY: Path is just a wrapper around OsStr, + // therefore converting &mut OsStr to &mut Path is safe. + unsafe { &mut *(inner as *mut OsStr as *mut Path) } + } + /// Yields the underlying [`OsStr`] slice. /// /// # Examples diff --git a/library/std/src/process.rs b/library/std/src/process.rs index 400d25beb26..17aff342c15 100644 --- a/library/std/src/process.rs +++ b/library/std/src/process.rs @@ -362,6 +362,10 @@ impl Read for ChildStdout { fn is_read_vectored(&self) -> bool { self.inner.is_read_vectored() } + + fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> { + self.inner.read_to_end(buf) + } } impl AsInner<AnonPipe> for ChildStdout { @@ -907,10 +911,8 @@ impl Command { /// ``` #[stable(feature = "process", since = "1.0.0")] pub fn output(&mut self) -> io::Result<Output> { - self.inner - .spawn(imp::Stdio::MakePipe, false) - .map(Child::from_inner) - .and_then(|p| p.wait_with_output()) + let (status, stdout, stderr) = self.inner.output()?; + Ok(Output { status: ExitStatus(status), stdout, stderr }) } /// Executes a command as a child process, waiting for it to finish and diff --git a/library/std/src/sys/unix/fs.rs b/library/std/src/sys/unix/fs.rs index 26a99f91377..d5f50d77911 100644 --- a/library/std/src/sys/unix/fs.rs +++ b/library/std/src/sys/unix/fs.rs @@ -1753,8 +1753,13 @@ mod remove_dir_impl { use crate::sys::common::small_c_string::run_path_with_cstr; use crate::sys::{cvt, cvt_r}; - #[cfg(not(all(target_os = "macos", not(target_arch = "aarch64")),))] + #[cfg(not(any( + target_os = "linux", + all(target_os = "macos", not(target_arch = "aarch64")) + )))] use libc::{fdopendir, openat, unlinkat}; + #[cfg(target_os = "linux")] + use libc::{fdopendir, openat64 as openat, unlinkat}; #[cfg(all(target_os = "macos", not(target_arch = "aarch64")))] use macos_weak::{fdopendir, openat, unlinkat}; diff --git a/library/std/src/sys/unix/kernel_copy.rs b/library/std/src/sys/unix/kernel_copy.rs index 94546ca09d0..6fa85e859c0 100644 --- a/library/std/src/sys/unix/kernel_copy.rs +++ b/library/std/src/sys/unix/kernel_copy.rs @@ -61,6 +61,10 @@ use crate::ptr; use crate::sync::atomic::{AtomicBool, AtomicU8, Ordering}; use crate::sys::cvt; use crate::sys::weak::syscall; +#[cfg(not(target_os = "linux"))] +use libc::sendfile as sendfile64; +#[cfg(target_os = "linux")] +use libc::sendfile64; use libc::{EBADF, EINVAL, ENOSYS, EOPNOTSUPP, EOVERFLOW, EPERM, EXDEV}; #[cfg(test)] @@ -647,7 +651,7 @@ fn sendfile_splice(mode: SpliceMode, reader: RawFd, writer: RawFd, len: u64) -> let result = match mode { SpliceMode::Sendfile => { - cvt(unsafe { libc::sendfile(writer, reader, ptr::null_mut(), chunk_size) }) + cvt(unsafe { sendfile64(writer, reader, ptr::null_mut(), chunk_size) }) } SpliceMode::Splice => cvt(unsafe { splice(reader, ptr::null_mut(), writer, ptr::null_mut(), chunk_size, 0) diff --git a/library/std/src/sys/unix/mod.rs b/library/std/src/sys/unix/mod.rs index 9055a011c51..3d60941e84e 100644 --- a/library/std/src/sys/unix/mod.rs +++ b/library/std/src/sys/unix/mod.rs @@ -95,6 +95,10 @@ pub unsafe fn init(argc: isize, argv: *const *const u8, sigpipe: u8) { )))] 'poll: { use crate::sys::os::errno; + #[cfg(not(target_os = "linux"))] + use libc::open as open64; + #[cfg(target_os = "linux")] + use libc::open64; let pfds: &mut [_] = &mut [ libc::pollfd { fd: 0, events: 0, revents: 0 }, libc::pollfd { fd: 1, events: 0, revents: 0 }, @@ -116,7 +120,7 @@ pub unsafe fn init(argc: isize, argv: *const *const u8, sigpipe: u8) { if pfd.revents & libc::POLLNVAL == 0 { continue; } - if libc::open("/dev/null\0".as_ptr().cast(), libc::O_RDWR, 0) == -1 { + if open64("/dev/null\0".as_ptr().cast(), libc::O_RDWR, 0) == -1 { // If the stream is closed but we failed to reopen it, abort the // process. Otherwise we wouldn't preserve the safety of // operations on the corresponding Rust object Stdin, Stdout, or @@ -139,9 +143,13 @@ pub unsafe fn init(argc: isize, argv: *const *const u8, sigpipe: u8) { )))] { use crate::sys::os::errno; + #[cfg(not(target_os = "linux"))] + use libc::open as open64; + #[cfg(target_os = "linux")] + use libc::open64; for fd in 0..3 { if libc::fcntl(fd, libc::F_GETFD) == -1 && errno() == libc::EBADF { - if libc::open("/dev/null\0".as_ptr().cast(), libc::O_RDWR, 0) == -1 { + if open64("/dev/null\0".as_ptr().cast(), libc::O_RDWR, 0) == -1 { // If the stream is closed but we failed to reopen it, abort the // process. Otherwise we wouldn't preserve the safety of // operations on the corresponding Rust object Stdin, Stdout, or diff --git a/library/std/src/sys/unix/pipe.rs b/library/std/src/sys/unix/pipe.rs index a56c275c942..a744d0ab640 100644 --- a/library/std/src/sys/unix/pipe.rs +++ b/library/std/src/sys/unix/pipe.rs @@ -58,6 +58,10 @@ impl AnonPipe { self.0.is_read_vectored() } + pub fn read_to_end(&self, buf: &mut Vec<u8>) -> io::Result<usize> { + self.0.read_to_end(buf) + } + pub fn write(&self, buf: &[u8]) -> io::Result<usize> { self.0.write(buf) } diff --git a/library/std/src/sys/unix/process/process_fuchsia.rs b/library/std/src/sys/unix/process/process_fuchsia.rs index 66ea3db2015..4c99d758c93 100644 --- a/library/std/src/sys/unix/process/process_fuchsia.rs +++ b/library/std/src/sys/unix/process/process_fuchsia.rs @@ -35,6 +35,11 @@ impl Command { Ok((Process { handle: Handle::new(process_handle) }, ours)) } + pub fn output(&mut self) -> io::Result<(ExitStatus, Vec<u8>, Vec<u8>)> { + let (proc, pipes) = self.spawn(Stdio::MakePipe, false)?; + crate::sys_common::process::wait_with_output(proc, pipes) + } + pub fn exec(&mut self, default: Stdio) -> io::Error { if self.saw_nul() { return io::const_io_error!( diff --git a/library/std/src/sys/unix/process/process_unix.rs b/library/std/src/sys/unix/process/process_unix.rs index 56a805cef73..39d1c8b1d8e 100644 --- a/library/std/src/sys/unix/process/process_unix.rs +++ b/library/std/src/sys/unix/process/process_unix.rs @@ -66,14 +66,15 @@ impl Command { // // Note that as soon as we're done with the fork there's no need to hold // a lock any more because the parent won't do anything and the child is - // in its own process. Thus the parent drops the lock guard while the child - // forgets it to avoid unlocking it on a new thread, which would be invalid. + // in its own process. Thus the parent drops the lock guard immediately. + // The child calls `mem::forget` to leak the lock, which is crucial because + // releasing a lock is not async-signal-safe. let env_lock = sys::os::env_read_lock(); let (pid, pidfd) = unsafe { self.do_fork()? }; if pid == 0 { crate::panic::always_abort(); - mem::forget(env_lock); + mem::forget(env_lock); // avoid non-async-signal-safe unlocking drop(input); let Err(err) = unsafe { self.do_exec(theirs, envp.as_ref()) }; let errno = err.raw_os_error().unwrap_or(libc::EINVAL) as u32; @@ -132,6 +133,11 @@ impl Command { } } + pub fn output(&mut self) -> io::Result<(ExitStatus, Vec<u8>, Vec<u8>)> { + let (proc, pipes) = self.spawn(Stdio::MakePipe, false)?; + crate::sys_common::process::wait_with_output(proc, pipes) + } + // Attempts to fork the process. If successful, returns Ok((0, -1)) // in the child, and Ok((child_pid, -1)) in the parent. #[cfg(not(target_os = "linux"))] diff --git a/library/std/src/sys/unix/process/process_unsupported.rs b/library/std/src/sys/unix/process/process_unsupported.rs index 72f9f3f9ca7..f28ca58d020 100644 --- a/library/std/src/sys/unix/process/process_unsupported.rs +++ b/library/std/src/sys/unix/process/process_unsupported.rs @@ -20,6 +20,10 @@ impl Command { unsupported() } + pub fn output(&mut self) -> io::Result<(ExitStatus, Vec<u8>, Vec<u8>)> { + unsupported() + } + pub fn exec(&mut self, _default: Stdio) -> io::Error { unsupported_err() } diff --git a/library/std/src/sys/unix/process/process_vxworks.rs b/library/std/src/sys/unix/process/process_vxworks.rs index 200ef671967..f549d37c301 100644 --- a/library/std/src/sys/unix/process/process_vxworks.rs +++ b/library/std/src/sys/unix/process/process_vxworks.rs @@ -108,6 +108,11 @@ impl Command { } } + pub fn output(&mut self) -> io::Result<(ExitStatus, Vec<u8>, Vec<u8>)> { + let (proc, pipes) = self.spawn(Stdio::MakePipe, false)?; + crate::sys_common::process::wait_with_output(proc, pipes) + } + pub fn exec(&mut self, default: Stdio) -> io::Error { let ret = Command::spawn(self, default, false); match ret { diff --git a/library/std/src/sys/unix/stack_overflow.rs b/library/std/src/sys/unix/stack_overflow.rs index 75a5c0f9279..957e086798f 100644 --- a/library/std/src/sys/unix/stack_overflow.rs +++ b/library/std/src/sys/unix/stack_overflow.rs @@ -45,7 +45,10 @@ mod imp { use crate::thread; use libc::MAP_FAILED; - use libc::{mmap, munmap}; + #[cfg(not(target_os = "linux"))] + use libc::{mmap as mmap64, munmap}; + #[cfg(target_os = "linux")] + use libc::{mmap64, munmap}; use libc::{sigaction, sighandler_t, SA_ONSTACK, SA_SIGINFO, SIGBUS, SIG_DFL}; use libc::{sigaltstack, SIGSTKSZ, SS_DISABLE}; use libc::{MAP_ANON, MAP_PRIVATE, PROT_NONE, PROT_READ, PROT_WRITE, SIGSEGV}; @@ -135,7 +138,7 @@ mod imp { #[cfg(not(any(target_os = "openbsd", target_os = "netbsd", target_os = "linux",)))] let flags = MAP_PRIVATE | MAP_ANON; let stackp = - mmap(ptr::null_mut(), SIGSTKSZ + page_size(), PROT_READ | PROT_WRITE, flags, -1, 0); + mmap64(ptr::null_mut(), SIGSTKSZ + page_size(), PROT_READ | PROT_WRITE, flags, -1, 0); if stackp == MAP_FAILED { panic!("failed to allocate an alternative stack: {}", io::Error::last_os_error()); } diff --git a/library/std/src/sys/unix/thread.rs b/library/std/src/sys/unix/thread.rs index 6ecf5bdcf86..d454a2a717c 100644 --- a/library/std/src/sys/unix/thread.rs +++ b/library/std/src/sys/unix/thread.rs @@ -653,7 +653,10 @@ pub mod guard { ))] #[cfg_attr(test, allow(dead_code))] pub mod guard { - use libc::{mmap, mprotect}; + #[cfg(not(target_os = "linux"))] + use libc::{mmap as mmap64, mprotect}; + #[cfg(target_os = "linux")] + use libc::{mmap64, mprotect}; use libc::{MAP_ANON, MAP_FAILED, MAP_FIXED, MAP_PRIVATE, PROT_NONE, PROT_READ, PROT_WRITE}; use crate::io; @@ -803,7 +806,7 @@ pub mod guard { // read/write permissions and only then mprotect() it to // no permissions at all. See issue #50313. let stackptr = get_stack_start_aligned()?; - let result = mmap( + let result = mmap64( stackptr, page_size, PROT_READ | PROT_WRITE, diff --git a/library/std/src/sys/unsupported/pipe.rs b/library/std/src/sys/unsupported/pipe.rs index 25514c2322f..0bba673b458 100644 --- a/library/std/src/sys/unsupported/pipe.rs +++ b/library/std/src/sys/unsupported/pipe.rs @@ -15,6 +15,10 @@ impl AnonPipe { self.0 } + pub fn read_to_end(&self, _buf: &mut Vec<u8>) -> io::Result<usize> { + self.0 + } + pub fn write(&self, _buf: &[u8]) -> io::Result<usize> { self.0 } diff --git a/library/std/src/sys/unsupported/process.rs b/library/std/src/sys/unsupported/process.rs index 633f17c054b..a494f2d6b4c 100644 --- a/library/std/src/sys/unsupported/process.rs +++ b/library/std/src/sys/unsupported/process.rs @@ -75,6 +75,10 @@ impl Command { ) -> io::Result<(Process, StdioPipes)> { unsupported() } + + pub fn output(&mut self) -> io::Result<(ExitStatus, Vec<u8>, Vec<u8>)> { + unsupported() + } } impl From<AnonPipe> for Stdio { diff --git a/library/std/src/sys/windows/pipe.rs b/library/std/src/sys/windows/pipe.rs index 9f26acc4520..7b25edaa556 100644 --- a/library/std/src/sys/windows/pipe.rs +++ b/library/std/src/sys/windows/pipe.rs @@ -1,7 +1,7 @@ use crate::os::windows::prelude::*; use crate::ffi::OsStr; -use crate::io::{self, IoSlice, IoSliceMut}; +use crate::io::{self, IoSlice, IoSliceMut, Read}; use crate::mem; use crate::path::Path; use crate::ptr; @@ -261,6 +261,10 @@ impl AnonPipe { self.inner.is_read_vectored() } + pub fn read_to_end(&self, buf: &mut Vec<u8>) -> io::Result<usize> { + self.handle().read_to_end(buf) + } + pub fn write(&self, buf: &[u8]) -> io::Result<usize> { unsafe { let len = crate::cmp::min(buf.len(), c::DWORD::MAX as usize) as c::DWORD; diff --git a/library/std/src/sys/windows/process.rs b/library/std/src/sys/windows/process.rs index 31e9b34fb9e..10bc949e1f4 100644 --- a/library/std/src/sys/windows/process.rs +++ b/library/std/src/sys/windows/process.rs @@ -351,6 +351,11 @@ impl Command { )) } } + + pub fn output(&mut self) -> io::Result<(ExitStatus, Vec<u8>, Vec<u8>)> { + let (proc, pipes) = self.spawn(Stdio::MakePipe, false)?; + crate::sys_common::process::wait_with_output(proc, pipes) + } } impl fmt::Debug for Command { diff --git a/library/std/src/sys_common/process.rs b/library/std/src/sys_common/process.rs index 9f978789a62..ae11412067b 100644 --- a/library/std/src/sys_common/process.rs +++ b/library/std/src/sys_common/process.rs @@ -4,7 +4,9 @@ use crate::collections::BTreeMap; use crate::env; use crate::ffi::{OsStr, OsString}; -use crate::sys::process::EnvKey; +use crate::io; +use crate::sys::pipe::read2; +use crate::sys::process::{EnvKey, ExitStatus, Process, StdioPipes}; // Stores a set of changes to an environment #[derive(Clone, Debug)] @@ -117,3 +119,30 @@ impl<'a> ExactSizeIterator for CommandEnvs<'a> { self.iter.is_empty() } } + +pub fn wait_with_output( + mut process: Process, + mut pipes: StdioPipes, +) -> io::Result<(ExitStatus, Vec<u8>, Vec<u8>)> { + drop(pipes.stdin.take()); + + let (mut stdout, mut stderr) = (Vec::new(), Vec::new()); + match (pipes.stdout.take(), pipes.stderr.take()) { + (None, None) => {} + (Some(out), None) => { + let res = out.read_to_end(&mut stdout); + res.unwrap(); + } + (None, Some(err)) => { + let res = err.read_to_end(&mut stderr); + res.unwrap(); + } + (Some(out), Some(err)) => { + let res = read2(out, &mut stdout, err, &mut stderr); + res.unwrap(); + } + } + + let status = process.wait()?; + Ok((status, stdout, stderr)) +} diff --git a/src/bootstrap/builder.rs b/src/bootstrap/builder.rs index 8ee6d49da8f..3f551dc119b 100644 --- a/src/bootstrap/builder.rs +++ b/src/bootstrap/builder.rs @@ -744,6 +744,7 @@ impl<'a> Builder<'a> { install::RustDemangler, install::Clippy, install::Miri, + install::LlvmTools, install::Analysis, install::Src, install::Rustc diff --git a/src/bootstrap/cache.rs b/src/bootstrap/cache.rs index be5c9bb0788..05f25af68ea 100644 --- a/src/bootstrap/cache.rs +++ b/src/bootstrap/cache.rs @@ -89,16 +89,16 @@ impl<T: Internable + Hash> Hash for Interned<T> { impl<T: Internable + Deref> Deref for Interned<T> { type Target = T::Target; - fn deref(&self) -> &'static Self::Target { + fn deref(&self) -> &Self::Target { let l = T::intern_cache().lock().unwrap(); - unsafe { mem::transmute::<&Self::Target, &'static Self::Target>(l.get(*self)) } + unsafe { mem::transmute::<&Self::Target, &Self::Target>(l.get(*self)) } } } impl<T: Internable + AsRef<U>, U: ?Sized> AsRef<U> for Interned<T> { - fn as_ref(&self) -> &'static U { + fn as_ref(&self) -> &U { let l = T::intern_cache().lock().unwrap(); - unsafe { mem::transmute::<&U, &'static U>(l.get(*self).as_ref()) } + unsafe { mem::transmute::<&U, &U>(l.get(*self).as_ref()) } } } diff --git a/src/bootstrap/dist.rs b/src/bootstrap/dist.rs index 2fef7f65827..3cb0eccd324 100644 --- a/src/bootstrap/dist.rs +++ b/src/bootstrap/dist.rs @@ -1470,7 +1470,7 @@ impl Step for Extended { let xform = |p: &Path| { let mut contents = t!(fs::read_to_string(p)); - for tool in &["rust-demangler"] { + for tool in &["rust-demangler", "miri"] { if !built_tools.contains(tool) { contents = filter(&contents, tool); } @@ -1510,9 +1510,8 @@ impl Step for Extended { prepare("rust-std"); prepare("rust-analysis"); prepare("clippy"); - prepare("miri"); prepare("rust-analyzer"); - for tool in &["rust-docs", "rust-demangler"] { + for tool in &["rust-docs", "rust-demangler", "miri"] { if built_tools.contains(tool) { prepare(tool); } @@ -1571,9 +1570,8 @@ impl Step for Extended { prepare("rust-docs"); prepare("rust-std"); prepare("clippy"); - prepare("miri"); prepare("rust-analyzer"); - for tool in &["rust-demangler"] { + for tool in &["rust-demangler", "miri"] { if built_tools.contains(tool) { prepare(tool); } @@ -1710,23 +1708,25 @@ impl Step for Extended { .arg(etc.join("msi/remove-duplicates.xsl")), ); } - builder.run( - Command::new(&heat) - .current_dir(&exe) - .arg("dir") - .arg("miri") - .args(&heat_flags) - .arg("-cg") - .arg("MiriGroup") - .arg("-dr") - .arg("Miri") - .arg("-var") - .arg("var.MiriDir") - .arg("-out") - .arg(exe.join("MiriGroup.wxs")) - .arg("-t") - .arg(etc.join("msi/remove-duplicates.xsl")), - ); + if built_tools.contains("miri") { + builder.run( + Command::new(&heat) + .current_dir(&exe) + .arg("dir") + .arg("miri") + .args(&heat_flags) + .arg("-cg") + .arg("MiriGroup") + .arg("-dr") + .arg("Miri") + .arg("-var") + .arg("var.MiriDir") + .arg("-out") + .arg(exe.join("MiriGroup.wxs")) + .arg("-t") + .arg(etc.join("msi/remove-duplicates.xsl")), + ); + } builder.run( Command::new(&heat) .current_dir(&exe) @@ -1774,7 +1774,6 @@ impl Step for Extended { .arg("-dStdDir=rust-std") .arg("-dAnalysisDir=rust-analysis") .arg("-dClippyDir=clippy") - .arg("-dMiriDir=miri") .arg("-arch") .arg(&arch) .arg("-out") @@ -1788,6 +1787,9 @@ impl Step for Extended { if built_tools.contains("rust-analyzer") { cmd.arg("-dRustAnalyzerDir=rust-analyzer"); } + if built_tools.contains("miri") { + cmd.arg("-dMiriDir=miri"); + } if target.ends_with("windows-gnu") { cmd.arg("-dGccDir=rust-mingw"); } @@ -1801,7 +1803,9 @@ impl Step for Extended { candle("CargoGroup.wxs".as_ref()); candle("StdGroup.wxs".as_ref()); candle("ClippyGroup.wxs".as_ref()); - candle("MiriGroup.wxs".as_ref()); + if built_tools.contains("miri") { + candle("MiriGroup.wxs".as_ref()); + } if built_tools.contains("rust-demangler") { candle("RustDemanglerGroup.wxs".as_ref()); } @@ -1837,9 +1841,11 @@ impl Step for Extended { .arg("StdGroup.wixobj") .arg("AnalysisGroup.wixobj") .arg("ClippyGroup.wixobj") - .arg("MiriGroup.wixobj") .current_dir(&exe); + if built_tools.contains("miri") { + cmd.arg("MiriGroup.wixobj"); + } if built_tools.contains("rust-analyzer") { cmd.arg("RustAnalyzerGroup.wixobj"); } diff --git a/src/bootstrap/format.rs b/src/bootstrap/format.rs index 5e7264fe765..b2f6afead79 100644 --- a/src/bootstrap/format.rs +++ b/src/bootstrap/format.rs @@ -8,7 +8,7 @@ use std::path::{Path, PathBuf}; use std::process::{Command, Stdio}; use std::sync::mpsc::SyncSender; -fn rustfmt(src: &Path, rustfmt: &Path, paths: &[PathBuf], check: bool) -> impl FnMut() { +fn rustfmt(src: &Path, rustfmt: &Path, paths: &[PathBuf], check: bool) -> impl FnMut(bool) -> bool { let mut cmd = Command::new(&rustfmt); // avoid the submodule config paths from coming into play, // we only allow a single global config for the workspace for now @@ -23,7 +23,13 @@ fn rustfmt(src: &Path, rustfmt: &Path, paths: &[PathBuf], check: bool) -> impl F let cmd_debug = format!("{:?}", cmd); let mut cmd = cmd.spawn().expect("running rustfmt"); // poor man's async: return a closure that'll wait for rustfmt's completion - move || { + move |block: bool| -> bool { + if !block { + match cmd.try_wait() { + Ok(Some(_)) => {} + _ => return false, + } + } let status = cmd.wait().unwrap(); if !status.success() { eprintln!( @@ -34,6 +40,7 @@ fn rustfmt(src: &Path, rustfmt: &Path, paths: &[PathBuf], check: bool) -> impl F ); crate::detail_exit(1); } + true } } @@ -146,15 +153,23 @@ pub fn format(build: &Builder<'_>, check: bool, paths: &[PathBuf]) { let child = rustfmt(&src, &rustfmt_path, paths.as_slice(), check); children.push_back(child); + // poll completion before waiting + for i in (0..children.len()).rev() { + if children[i](false) { + children.swap_remove_back(i); + break; + } + } + if children.len() >= max_processes { // await oldest child - children.pop_front().unwrap()(); + children.pop_front().unwrap()(true); } } // await remaining children for mut child in children { - child(); + child(true); } }); diff --git a/src/bootstrap/install.rs b/src/bootstrap/install.rs index 7672b7c9135..c53d0d7e4cb 100644 --- a/src/bootstrap/install.rs +++ b/src/bootstrap/install.rs @@ -205,6 +205,12 @@ install!((self, builder, _config), .expect("missing miri"); install_sh(builder, "miri", self.compiler.stage, Some(self.target), &tarball); }; + LlvmTools, alias = "llvm-tools", Self::should_build(_config), only_hosts: true, { + let tarball = builder + .ensure(dist::LlvmTools { target: self.target }) + .expect("missing llvm-tools"); + install_sh(builder, "llvm-tools", self.compiler.stage, Some(self.target), &tarball); + }; Rustfmt, alias = "rustfmt", Self::should_build(_config), only_hosts: true, { if let Some(tarball) = builder.ensure(dist::Rustfmt { compiler: self.compiler, diff --git a/src/bootstrap/lib.rs b/src/bootstrap/lib.rs index 570fe6484e3..f0c9a948727 100644 --- a/src/bootstrap/lib.rs +++ b/src/bootstrap/lib.rs @@ -108,6 +108,7 @@ use std::collections::{HashMap, HashSet}; use std::env; use std::fs::{self, File}; use std::io; +use std::io::ErrorKind; use std::path::{Path, PathBuf}; use std::process::Command; use std::str; @@ -119,7 +120,9 @@ use once_cell::sync::OnceCell; use crate::builder::Kind; use crate::config::{LlvmLibunwind, TargetSelection}; -use crate::util::{exe, libdir, mtime, output, run, run_suppressed, try_run_suppressed, CiEnv}; +use crate::util::{ + exe, libdir, mtime, output, run, run_suppressed, symlink_dir, try_run_suppressed, CiEnv, +}; mod bolt; mod builder; @@ -586,6 +589,20 @@ impl Build { metadata::build(&mut build); } + // Make a symbolic link so we can use a consistent directory in the documentation. + let build_triple = build.out.join(&build.build.triple); + let host = build.out.join("host"); + if let Err(e) = symlink_dir(&build.config, &build_triple, &host) { + if e.kind() != ErrorKind::AlreadyExists { + panic!( + "symlink_dir({} => {}) failed with {}", + host.display(), + build_triple.display(), + e + ); + } + } + build } diff --git a/src/ci/docker/host-x86_64/mingw-check/Dockerfile b/src/ci/docker/host-x86_64/mingw-check/Dockerfile index 40caa7c5013..076a427c988 100644 --- a/src/ci/docker/host-x86_64/mingw-check/Dockerfile +++ b/src/ci/docker/host-x86_64/mingw-check/Dockerfile @@ -46,7 +46,7 @@ ENV SCRIPT python3 ../x.py --stage 2 test src/tools/expand-yaml-anchors && \ python3 ../x.py test --stage 2 src/tools/tidy && \ python3 ../x.py test --stage 0 core alloc std test proc_macro && \ # Build both public and internal documentation. - RUSTDOCFLAGS="--document-private-items" python3 ../x.py doc --stage 0 library/test && \ + RUSTDOCFLAGS=\"--document-private-items --document-hidden-items\" python3 ../x.py doc --stage 0 library/test && \ /scripts/validate-toolstate.sh && \ /scripts/validate-error-codes.sh && \ reuse lint && \ diff --git a/src/ci/docker/scripts/fuchsia-test-runner.py b/src/ci/docker/scripts/fuchsia-test-runner.py index a2708d16947..3e86339859d 100755 --- a/src/ci/docker/scripts/fuchsia-test-runner.py +++ b/src/ci/docker/scripts/fuchsia-test-runner.py @@ -346,7 +346,7 @@ class TestEnvironment: "-f", self.ssh_keyfile_path(), "-C", - "Generated by test_toolchain.py", + "Generated by fuchsia-test-runner.py", ], stdout=self.subprocess_output(), stderr=self.subprocess_output(), diff --git a/src/ci/github-actions/ci.yml b/src/ci/github-actions/ci.yml index d1ba46ad30d..5a0397a3d12 100644 --- a/src/ci/github-actions/ci.yml +++ b/src/ci/github-actions/ci.yml @@ -467,7 +467,7 @@ jobs: - name: dist-x86_64-apple env: SCRIPT: ./x.py dist bootstrap --include-default-paths --host=x86_64-apple-darwin --target=x86_64-apple-darwin - RUST_CONFIGURE_ARGS: --enable-full-tools --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false --set rust.lto=thin + RUST_CONFIGURE_ARGS: --enable-full-tools --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false RUSTC_RETRY_LINKER_ON_SEGFAULT: 1 MACOSX_DEPLOYMENT_TARGET: 10.7 SELECT_XCODE: /Applications/Xcode_13.4.1.app diff --git a/src/doc/rustc/src/exploit-mitigations.md b/src/doc/rustc/src/exploit-mitigations.md index fa38dd54d60..98b49e07171 100644 --- a/src/doc/rustc/src/exploit-mitigations.md +++ b/src/doc/rustc/src/exploit-mitigations.md @@ -217,7 +217,7 @@ It is recommended that explicit wrapping methods such as `wrapping_add` be used when wrapping semantics are intended, and that explicit checking and wrapping methods always be used when using Unsafe Rust. -<small id="fn:2">2\. See <https://doc.rust-lang.org/std/primitive.u32.html> +<small id="fn:2">2\. See [the `u32` docs](../std/primitive.u32.html) for more information on the checked, overflowing, saturating, and wrapping methods (using u32 as an example). <a href="#fnref:2" class="reversefootnote" role="doc-backlink">↩</a></small> @@ -575,17 +575,17 @@ defaults (unrelated to `READ_IMPLIES_EXEC`). <https://hacks.mozilla.org/2019/02/fearless-security-thread-safety/>. 3. S. Klabnik and C. Nichols. “What Is Ownership?.” The Rust Programming - Language. <https://doc.rust-lang.org/book/ch04-01-what-is-ownership.html>. + Language. [https://doc.rust-lang.org/book/ch04-01-what-is-ownership.html](../book/ch04-01-what-is-ownership.html). 4. S. Klabnik and C. Nichols. “References and Borrowing.” The Rust Programming Language. - <https://doc.rust-lang.org/book/ch04-02-references-and-borrowing.html>. + [https://doc.rust-lang.org/book/ch04-02-references-and-borrowing.html](../book/ch04-02-references-and-borrowing.html). 5. S. Klabnik and C. Nichols. “The Slice Type.” The Rust Programming - Language. <https://doc.rust-lang.org/book/ch04-03-slices.html>. + Language. [https://doc.rust-lang.org/book/ch04-03-slices.html](../book/ch04-03-slices.html). 6. S. Klabnik and C. Nichols. “Unsafe Rust.” The Rust Programming Language. - <https://doc.rust-lang.org/book/ch19-01-unsafe-rust.html>. + [https://doc.rust-lang.org/book/ch19-01-unsafe-rust.html](../book/ch19-01-unsafe-rust.html). 7. S. Davidoff. “How Rust’s standard library was vulnerable for years and nobody noticed.” Medium. @@ -696,4 +696,4 @@ defaults (unrelated to `READ_IMPLIES_EXEC`). for Rust #89653.” GitHub. <https://github.com/rust-lang/rust/issues/89653>. 41. “ControlFlowIntegrity.” The Rust Unstable Book. - <https://doc.rust-lang.org/beta/unstable-book/compiler-flags/sanitizer.html#controlflowintegrity>. + [https://doc.rust-lang.org/unstable-book/compiler-flags/sanitizer.html#controlflowintegrity](../unstable-book/compiler-flags/sanitizer.html#controlflowintegrity). diff --git a/src/doc/rustc/src/linker-plugin-lto.md b/src/doc/rustc/src/linker-plugin-lto.md index 9272b9ac9b2..858b7bc79c4 100644 --- a/src/doc/rustc/src/linker-plugin-lto.md +++ b/src/doc/rustc/src/linker-plugin-lto.md @@ -112,7 +112,7 @@ targeting Windows-like targets This is fixed if you explicitly set the target, for example `cargo build --target x86_64-pc-windows-msvc` Without an explicit --target the flags will be passed to all compiler invocations (including build -scripts and proc macros), see [cargo docs on rustflags](https://doc.rust-lang.org/cargo/reference/config.html#buildrustflags) +scripts and proc macros), see [cargo docs on rustflags](../cargo/reference/config.html#buildrustflags) If you have dependencies using the `cc` crate, you will need to set these environment variables: diff --git a/src/doc/rustc/src/platform-support/android.md b/src/doc/rustc/src/platform-support/android.md index b2c8e5d4df7..e351cfaf89c 100644 --- a/src/doc/rustc/src/platform-support/android.md +++ b/src/doc/rustc/src/platform-support/android.md @@ -42,4 +42,4 @@ edition of the [Android NDK]. Supported Android targets are: [Android NDK]: https://developer.android.com/ndk/downloads A list of all supported targets can be found -[here](https://doc.rust-lang.org/rustc/platform-support.html) +[here](../platform-support.html) diff --git a/src/doc/rustc/src/platform-support/armv6k-nintendo-3ds.md b/src/doc/rustc/src/platform-support/armv6k-nintendo-3ds.md index 215290e3898..2ce0ccb7876 100644 --- a/src/doc/rustc/src/platform-support/armv6k-nintendo-3ds.md +++ b/src/doc/rustc/src/platform-support/armv6k-nintendo-3ds.md @@ -111,7 +111,7 @@ to an SD card to be inserted in the device. The `cargo-3ds` tool mentioned in [Building Rust programs](#building-rust-programs) supports the use of `3dslink` with `cargo 3ds run`. The default Rust test runner is not supported, but -[custom test frameworks](https://doc.rust-lang.org/beta/unstable-book/language-features/custom-test-frameworks.html) +[custom test frameworks](../../unstable-book/language-features/custom-test-frameworks.html) can be used with `cargo 3ds test` to run unit tests on a device. The Rust test suite for `library/std` is not yet supported. diff --git a/src/doc/rustc/src/platform-support/fuchsia.md b/src/doc/rustc/src/platform-support/fuchsia.md index fbf999f9715..cc4ee2e67b1 100644 --- a/src/doc/rustc/src/platform-support/fuchsia.md +++ b/src/doc/rustc/src/platform-support/fuchsia.md @@ -90,7 +90,7 @@ rustup target add aarch64-fuchsia After installing our Fuchsia targets, we can now compile a Rust binary that targets Fuchsia. -To create our Rust project, we can issue a standard `cargo` command as follows: +To create our Rust project, we can use [`cargo`][cargo] as follows: **From base working directory** ```sh @@ -867,7 +867,7 @@ ${SDK_PATH}/tools/${ARCH}/ffx debug connect -- \ [Fuchsia]: https://fuchsia.dev/ [source tree]: https://fuchsia.dev/fuchsia-src/get-started/learn/build [rustup]: https://rustup.rs/ -[cargo]: https://doc.rust-lang.org/cargo/ +[cargo]: ../../cargo/index.html [Fuchsia SDK]: https://chrome-infra-packages.appspot.com/p/fuchsia/sdk/core [overview of CML]: https://fuchsia.dev/fuchsia-src/concepts/components/v2/component_manifests [reference for the file format]: https://fuchsia.dev/reference/cml diff --git a/src/doc/rustc/src/targets/custom.md b/src/doc/rustc/src/targets/custom.md index 27ef2f49eee..a67cb10fc75 100644 --- a/src/doc/rustc/src/targets/custom.md +++ b/src/doc/rustc/src/targets/custom.md @@ -14,4 +14,4 @@ To see it for a different target, add the `--target` flag: rustc +nightly -Z unstable-options --target=wasm32-unknown-unknown --print target-spec-json ``` -To use a custom target, see the (unstable) [`build-std` feature](https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#build-std) of `cargo`. +To use a custom target, see the (unstable) [`build-std` feature](../../cargo/reference/unstable.html#build-std) of `cargo`. diff --git a/src/doc/unstable-book/src/compiler-flags/branch-protection.md b/src/doc/unstable-book/src/compiler-flags/branch-protection.md index 85403748e1d..ca5664835f2 100644 --- a/src/doc/unstable-book/src/compiler-flags/branch-protection.md +++ b/src/doc/unstable-book/src/compiler-flags/branch-protection.md @@ -1,7 +1,7 @@ # `branch-protection` This option lets you enable branch authentication instructions on AArch64. -This option is ignored for non-AArch64 architectures. +This option is only accepted when targeting AArch64 architectures. It takes some combination of the following values, separated by a `,`. - `pac-ret` - Enable pointer authentication for non-leaf functions. @@ -15,4 +15,4 @@ For example, `-Z branch-protection=bti,pac-ret,leaf` is valid, but Rust's standard library does not ship with BTI or pointer authentication enabled by default. In Cargo projects the standard library can be recompiled with pointer authentication using the nightly -[build-std](https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#build-std) feature. +[build-std](../../cargo/reference/unstable.html#build-std) feature. diff --git a/src/doc/unstable-book/src/compiler-flags/control-flow-guard.md b/src/doc/unstable-book/src/compiler-flags/control-flow-guard.md index 08c16d95f46..dbb741422a8 100644 --- a/src/doc/unstable-book/src/compiler-flags/control-flow-guard.md +++ b/src/doc/unstable-book/src/compiler-flags/control-flow-guard.md @@ -39,7 +39,7 @@ It is strongly recommended to also enable CFG checks for all linked libraries, i To enable CFG in the standard library, use the [cargo `-Z build-std` functionality][build-std] to recompile the standard library with the same configuration options as the main program. -[build-std]: https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#build-std +[build-std]: ../../cargo/reference/unstable.html#build-std For example: ```cmd diff --git a/src/doc/unstable-book/src/compiler-flags/sanitizer.md b/src/doc/unstable-book/src/compiler-flags/sanitizer.md index 9bbf9e28fff..a9616c34bff 100644 --- a/src/doc/unstable-book/src/compiler-flags/sanitizer.md +++ b/src/doc/unstable-book/src/compiler-flags/sanitizer.md @@ -420,8 +420,8 @@ flow using an indirect branch/call to a function with different return and parameter types than the return type expected and arguments intended/passed in the call/branch site, the execution is also terminated (see Fig. 9). -[rust-book-ch19-05]: https://doc.rust-lang.org/book/ch19-05-advanced-functions-and-closures.html -[rust-book]: https://doc.rust-lang.org/book/title-page.html +[rust-book-ch19-05]: ../../book/ch19-05-advanced-functions-and-closures.html +[rust-book]: ../../book/title-page.html # HWAddressSanitizer @@ -691,7 +691,7 @@ It is strongly recommended to combine sanitizers with recompiled and instrumented standard library, for example using [cargo `-Zbuild-std` functionality][build-std]. -[build-std]: https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#build-std +[build-std]: ../../cargo/reference/unstable.html#build-std # Build scripts and procedural macros diff --git a/src/doc/unstable-book/src/compiler-flags/virtual-function-elimination.md b/src/doc/unstable-book/src/compiler-flags/virtual-function-elimination.md index c6516d838dd..5cb9758409a 100644 --- a/src/doc/unstable-book/src/compiler-flags/virtual-function-elimination.md +++ b/src/doc/unstable-book/src/compiler-flags/virtual-function-elimination.md @@ -36,4 +36,4 @@ optimized out, if unused. However, with `make_foo` you can produce a wrapped to inlining of `f`, `Foo::foo` can then be called from a foreign crate. This can lead to miscompilations. -[Clto]: https://doc.rust-lang.org/rustc/codegen-options/index.html#lto +[Clto]: ../../rustc/codegen-options/index.html#lto diff --git a/src/doc/unstable-book/src/language-features/auto-traits.md b/src/doc/unstable-book/src/language-features/auto-traits.md index f967c11fc4d..014e15d1ada 100644 --- a/src/doc/unstable-book/src/language-features/auto-traits.md +++ b/src/doc/unstable-book/src/language-features/auto-traits.md @@ -13,8 +13,8 @@ that are automatically implemented for every type, unless the type, or a type it has explicitly opted out via a negative impl. (Negative impls are separately controlled by the `negative_impls` feature.) -[`Send`]: https://doc.rust-lang.org/std/marker/trait.Send.html -[`Sync`]: https://doc.rust-lang.org/std/marker/trait.Sync.html +[`Send`]: ../../std/marker/trait.Send.html +[`Sync`]: ../../std/marker/trait.Sync.html ```rust,ignore (partial-example) impl !Trait for Type {} diff --git a/src/doc/unstable-book/src/language-features/unboxed-closures.md b/src/doc/unstable-book/src/language-features/unboxed-closures.md index e4113d72d09..3609e7f52f8 100644 --- a/src/doc/unstable-book/src/language-features/unboxed-closures.md +++ b/src/doc/unstable-book/src/language-features/unboxed-closures.md @@ -12,7 +12,7 @@ The `unboxed_closures` feature allows you to write functions using the `"rust-ca required for implementing the [`Fn*`] family of traits. `"rust-call"` functions must have exactly one (non self) argument, a tuple representing the argument list. -[`Fn*`]: https://doc.rust-lang.org/std/ops/trait.Fn.html +[`Fn*`]: ../../std/ops/trait.Fn.html ```rust #![feature(unboxed_closures)] diff --git a/src/doc/unstable-book/src/library-features/default-free-fn.md b/src/doc/unstable-book/src/library-features/default-free-fn.md index d40a27dddf3..bafc9ac4d0d 100644 --- a/src/doc/unstable-book/src/library-features/default-free-fn.md +++ b/src/doc/unstable-book/src/library-features/default-free-fn.md @@ -10,7 +10,7 @@ Adds a free `default()` function to the `std::default` module. This function just forwards to [`Default::default()`], but may remove repetition of the word "default" from the call site. -[`Default::default()`]: https://doc.rust-lang.org/nightly/std/default/trait.Default.html#tymethod.default +[`Default::default()`]: ../../std/default/trait.Default.html#tymethod.default Here is an example: diff --git a/src/doc/unstable-book/src/library-features/fn-traits.md b/src/doc/unstable-book/src/library-features/fn-traits.md index 29a8aecee6c..180184146d1 100644 --- a/src/doc/unstable-book/src/library-features/fn-traits.md +++ b/src/doc/unstable-book/src/library-features/fn-traits.md @@ -11,7 +11,7 @@ See Also: [`unboxed_closures`](../language-features/unboxed-closures.md) The `fn_traits` feature allows for implementation of the [`Fn*`] traits for creating custom closure-like types. -[`Fn*`]: https://doc.rust-lang.org/std/ops/trait.Fn.html +[`Fn*`]: ../../std/ops/trait.Fn.html ```rust #![feature(unboxed_closures)] diff --git a/src/librustdoc/clean/auto_trait.rs b/src/librustdoc/clean/auto_trait.rs index 953f4aa8a1b..4d6f1524732 100644 --- a/src/librustdoc/clean/auto_trait.rs +++ b/src/librustdoc/clean/auto_trait.rs @@ -44,7 +44,7 @@ where discard_positive_impl: bool, ) -> Option<Item> { let tcx = self.cx.tcx; - let trait_ref = tcx.mk_trait_ref(trait_def_id, [ty]); + let trait_ref = ty::Binder::dummy(tcx.mk_trait_ref(trait_def_id, [ty])); if !self.cx.generated_synthetics.insert((ty, trait_def_id)) { debug!("get_auto_trait_impl_for({:?}): already generated, aborting", trait_ref); return None; @@ -124,7 +124,7 @@ where unsafety: hir::Unsafety::Normal, generics: new_generics, trait_: Some(clean_trait_ref_with_bindings(self.cx, trait_ref, ThinVec::new())), - for_: clean_middle_ty(ty, self.cx, None), + for_: clean_middle_ty(ty::Binder::dummy(ty), self.cx, None), items: Vec::new(), polarity, kind: ImplKind::Auto, diff --git a/src/librustdoc/clean/blanket_impl.rs b/src/librustdoc/clean/blanket_impl.rs index a1145b90d65..4ef5747596b 100644 --- a/src/librustdoc/clean/blanket_impl.rs +++ b/src/librustdoc/clean/blanket_impl.rs @@ -105,10 +105,10 @@ impl<'a, 'tcx> BlanketImplFinder<'a, 'tcx> { // the post-inference `trait_ref`, as it's more accurate. trait_: Some(clean_trait_ref_with_bindings( cx, - trait_ref.0, + ty::Binder::dummy(trait_ref.0), ThinVec::new(), )), - for_: clean_middle_ty(ty.0, cx, None), + for_: clean_middle_ty(ty::Binder::dummy(ty.0), cx, None), items: cx .tcx .associated_items(impl_def_id) @@ -117,7 +117,7 @@ impl<'a, 'tcx> BlanketImplFinder<'a, 'tcx> { .collect::<Vec<_>>(), polarity: ty::ImplPolarity::Positive, kind: ImplKind::Blanket(Box::new(clean_middle_ty( - trait_ref.0.self_ty(), + ty::Binder::dummy(trait_ref.0.self_ty()), cx, None, ))), diff --git a/src/librustdoc/clean/inline.rs b/src/librustdoc/clean/inline.rs index e7c3e5a45e8..d1601272af7 100644 --- a/src/librustdoc/clean/inline.rs +++ b/src/librustdoc/clean/inline.rs @@ -293,7 +293,7 @@ fn build_union(cx: &mut DocContext<'_>, did: DefId) -> clean::Union { fn build_type_alias(cx: &mut DocContext<'_>, did: DefId) -> Box<clean::Typedef> { let predicates = cx.tcx.explicit_predicates_of(did); - let type_ = clean_middle_ty(cx.tcx.type_of(did), cx, Some(did)); + let type_ = clean_middle_ty(ty::Binder::dummy(cx.tcx.type_of(did)), cx, Some(did)); Box::new(clean::Typedef { type_, @@ -325,7 +325,7 @@ pub(crate) fn build_impls( // * https://github.com/rust-lang/rust/pull/99917 — where the feature got used // * https://github.com/rust-lang/rust/issues/53487 — overall tracking issue for Error if tcx.has_attr(did, sym::rustc_has_incoherent_inherent_impls) { - use rustc_middle::ty::fast_reject::SimplifiedTypeGen::*; + use rustc_middle::ty::fast_reject::SimplifiedType::*; let type_ = if tcx.is_trait(did) { TraitSimplifiedType(did) } else { AdtSimplifiedType(did) }; for &did in tcx.incoherent_impls(type_) { @@ -405,7 +405,7 @@ pub(crate) fn build_impl( let for_ = match &impl_item { Some(impl_) => clean_ty(impl_.self_ty, cx), - None => clean_middle_ty(tcx.type_of(did), cx, Some(did)), + None => clean_middle_ty(ty::Binder::dummy(tcx.type_of(did)), cx, Some(did)), }; // Only inline impl if the implementing type is @@ -496,7 +496,8 @@ pub(crate) fn build_impl( ), }; let polarity = tcx.impl_polarity(did); - let trait_ = associated_trait.map(|t| clean_trait_ref_with_bindings(cx, t, ThinVec::new())); + let trait_ = associated_trait + .map(|t| clean_trait_ref_with_bindings(cx, ty::Binder::dummy(t), ThinVec::new())); if trait_.as_ref().map(|t| t.def_id()) == tcx.lang_items().deref_trait() { super::build_deref_target_impls(cx, &trait_items, ret); } @@ -640,14 +641,14 @@ pub(crate) fn print_inlined_const(tcx: TyCtxt<'_>, did: DefId) -> String { fn build_const(cx: &mut DocContext<'_>, def_id: DefId) -> clean::Constant { clean::Constant { - type_: clean_middle_ty(cx.tcx.type_of(def_id), cx, Some(def_id)), + type_: clean_middle_ty(ty::Binder::dummy(cx.tcx.type_of(def_id)), cx, Some(def_id)), kind: clean::ConstantKind::Extern { def_id }, } } fn build_static(cx: &mut DocContext<'_>, did: DefId, mutable: bool) -> clean::Static { clean::Static { - type_: clean_middle_ty(cx.tcx.type_of(did), cx, Some(did)), + type_: clean_middle_ty(ty::Binder::dummy(cx.tcx.type_of(did)), cx, Some(did)), mutability: if mutable { Mutability::Mut } else { Mutability::Not }, expr: None, } diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs index 2a2a9470d25..92886bbfe26 100644 --- a/src/librustdoc/clean/mod.rs +++ b/src/librustdoc/clean/mod.rs @@ -22,6 +22,7 @@ use rustc_infer::infer::region_constraints::{Constraint, RegionConstraintData}; use rustc_middle::middle::resolve_lifetime as rl; use rustc_middle::ty::fold::TypeFolder; use rustc_middle::ty::InternalSubsts; +use rustc_middle::ty::TypeVisitable; use rustc_middle::ty::{self, AdtKind, DefIdTree, EarlyBinder, Ty, TyCtxt}; use rustc_middle::{bug, span_bug}; use rustc_span::hygiene::{AstPass, MacroKind}; @@ -127,7 +128,7 @@ fn clean_generic_bound<'tcx>( hir::GenericBound::LangItemTrait(lang_item, span, _, generic_args) => { let def_id = cx.tcx.require_lang_item(lang_item, Some(span)); - let trait_ref = ty::TraitRef::identity(cx.tcx, def_id).skip_binder(); + let trait_ref = ty::TraitRef::identity(cx.tcx, def_id); let generic_args = clean_generic_args(generic_args, cx); let GenericArgs::AngleBracketed { bindings, .. } = generic_args @@ -156,17 +157,18 @@ fn clean_generic_bound<'tcx>( pub(crate) fn clean_trait_ref_with_bindings<'tcx>( cx: &mut DocContext<'tcx>, - trait_ref: ty::TraitRef<'tcx>, + trait_ref: ty::PolyTraitRef<'tcx>, bindings: ThinVec<TypeBinding>, ) -> Path { - let kind = cx.tcx.def_kind(trait_ref.def_id).into(); + let kind = cx.tcx.def_kind(trait_ref.def_id()).into(); if !matches!(kind, ItemType::Trait | ItemType::TraitAlias) { - span_bug!(cx.tcx.def_span(trait_ref.def_id), "`TraitRef` had unexpected kind {:?}", kind); + span_bug!(cx.tcx.def_span(trait_ref.def_id()), "`TraitRef` had unexpected kind {:?}", kind); } - inline::record_extern_fqn(cx, trait_ref.def_id, kind); - let path = external_path(cx, trait_ref.def_id, true, bindings, trait_ref.substs); + inline::record_extern_fqn(cx, trait_ref.def_id(), kind); + let path = + external_path(cx, trait_ref.def_id(), true, bindings, trait_ref.map_bound(|tr| tr.substs)); - debug!("ty::TraitRef\n subst: {:?}\n", trait_ref.substs); + debug!(?trait_ref); path } @@ -187,7 +189,7 @@ fn clean_poly_trait_ref_with_bindings<'tcx>( }) .collect(); - let trait_ = clean_trait_ref_with_bindings(cx, poly_trait_ref.skip_binder(), bindings); + let trait_ = clean_trait_ref_with_bindings(cx, poly_trait_ref, bindings); GenericBound::TraitBound( PolyTrait { trait_, generic_params: late_bound_regions }, hir::TraitBoundModifier::None, @@ -212,19 +214,19 @@ fn clean_lifetime<'tcx>(lifetime: &hir::Lifetime, cx: &mut DocContext<'tcx>) -> pub(crate) fn clean_const<'tcx>(constant: &hir::ConstArg, cx: &mut DocContext<'tcx>) -> Constant { let def_id = cx.tcx.hir().body_owner_def_id(constant.value.body).to_def_id(); Constant { - type_: clean_middle_ty(cx.tcx.type_of(def_id), cx, Some(def_id)), + type_: clean_middle_ty(ty::Binder::dummy(cx.tcx.type_of(def_id)), cx, Some(def_id)), kind: ConstantKind::Anonymous { body: constant.value.body }, } } pub(crate) fn clean_middle_const<'tcx>( - constant: ty::Const<'tcx>, + constant: ty::Binder<'tcx, ty::Const<'tcx>>, cx: &mut DocContext<'tcx>, ) -> Constant { // FIXME: instead of storing the stringified expression, store `self` directly instead. Constant { - type_: clean_middle_ty(constant.ty(), cx, None), - kind: ConstantKind::TyConst { expr: constant.to_string().into() }, + type_: clean_middle_ty(constant.map_bound(|c| c.ty()), cx, None), + kind: ConstantKind::TyConst { expr: constant.skip_binder().to_string().into() }, } } @@ -333,7 +335,7 @@ fn clean_poly_trait_predicate<'tcx>( let poly_trait_ref = pred.map_bound(|pred| pred.trait_ref); Some(WherePredicate::BoundPredicate { - ty: clean_middle_ty(poly_trait_ref.skip_binder().self_ty(), cx, None), + ty: clean_middle_ty(poly_trait_ref.self_ty(), cx, None), bounds: vec![clean_poly_trait_ref_with_bindings(cx, poly_trait_ref, ThinVec::new())], bound_params: Vec::new(), }) @@ -359,7 +361,7 @@ fn clean_type_outlives_predicate<'tcx>( let ty::OutlivesPredicate(ty, lt) = pred; Some(WherePredicate::BoundPredicate { - ty: clean_middle_ty(ty, cx, None), + ty: clean_middle_ty(ty::Binder::dummy(ty), cx, None), bounds: vec![GenericBound::Outlives( clean_middle_region(lt).expect("failed to clean lifetimes"), )], @@ -367,10 +369,13 @@ fn clean_type_outlives_predicate<'tcx>( }) } -fn clean_middle_term<'tcx>(term: ty::Term<'tcx>, cx: &mut DocContext<'tcx>) -> Term { - match term.unpack() { - ty::TermKind::Ty(ty) => Term::Type(clean_middle_ty(ty, cx, None)), - ty::TermKind::Const(c) => Term::Constant(clean_middle_const(c, cx)), +fn clean_middle_term<'tcx>( + term: ty::Binder<'tcx, ty::Term<'tcx>>, + cx: &mut DocContext<'tcx>, +) -> Term { + match term.skip_binder().unpack() { + ty::TermKind::Ty(ty) => Term::Type(clean_middle_ty(term.rebind(ty), cx, None)), + ty::TermKind::Const(c) => Term::Constant(clean_middle_const(term.rebind(c), cx)), } } @@ -379,7 +384,10 @@ fn clean_hir_term<'tcx>(term: &hir::Term<'tcx>, cx: &mut DocContext<'tcx>) -> Te hir::Term::Ty(ty) => Term::Type(clean_ty(ty, cx)), hir::Term::Const(c) => { let def_id = cx.tcx.hir().local_def_id(c.hir_id); - Term::Constant(clean_middle_const(ty::Const::from_anon_const(cx.tcx, def_id), cx)) + Term::Constant(clean_middle_const( + ty::Binder::dummy(ty::Const::from_anon_const(cx.tcx, def_id)), + cx, + )) } } } @@ -398,32 +406,31 @@ fn clean_projection_predicate<'tcx>( }) .collect(); - let ty::ProjectionPredicate { projection_ty, term } = pred.skip_binder(); - WherePredicate::EqPredicate { - lhs: Box::new(clean_projection(projection_ty, cx, None)), - rhs: Box::new(clean_middle_term(term, cx)), + lhs: Box::new(clean_projection(pred.map_bound(|p| p.projection_ty), cx, None)), + rhs: Box::new(clean_middle_term(pred.map_bound(|p| p.term), cx)), bound_params: late_bound_regions, } } fn clean_projection<'tcx>( - ty: ty::ProjectionTy<'tcx>, + ty: ty::Binder<'tcx, ty::AliasTy<'tcx>>, cx: &mut DocContext<'tcx>, def_id: Option<DefId>, ) -> Type { - if cx.tcx.def_kind(ty.item_def_id) == DefKind::ImplTraitPlaceholder { + if cx.tcx.def_kind(ty.skip_binder().def_id) == DefKind::ImplTraitPlaceholder { let bounds = cx .tcx - .explicit_item_bounds(ty.item_def_id) + .explicit_item_bounds(ty.skip_binder().def_id) .iter() - .map(|(bound, _)| EarlyBinder(*bound).subst(cx.tcx, ty.substs)) + .map(|(bound, _)| EarlyBinder(*bound).subst(cx.tcx, ty.skip_binder().substs)) .collect::<Vec<_>>(); return clean_middle_opaque_bounds(cx, bounds); } - let trait_ = clean_trait_ref_with_bindings(cx, ty.trait_ref(cx.tcx), ThinVec::new()); - let self_type = clean_middle_ty(ty.self_ty(), cx, None); + let trait_ = + clean_trait_ref_with_bindings(cx, ty.map_bound(|ty| ty.trait_ref(cx.tcx)), ThinVec::new()); + let self_type = clean_middle_ty(ty.map_bound(|ty| ty.self_ty()), cx, None); let self_def_id = if let Some(def_id) = def_id { cx.tcx.opt_parent(def_id).or(Some(def_id)) } else { @@ -446,15 +453,16 @@ fn compute_should_show_cast(self_def_id: Option<DefId>, trait_: &Path, self_type } fn projection_to_path_segment<'tcx>( - ty: ty::ProjectionTy<'tcx>, + ty: ty::Binder<'tcx, ty::AliasTy<'tcx>>, cx: &mut DocContext<'tcx>, ) -> PathSegment { - let item = cx.tcx.associated_item(ty.item_def_id); - let generics = cx.tcx.generics_of(ty.item_def_id); + let item = cx.tcx.associated_item(ty.skip_binder().def_id); + let generics = cx.tcx.generics_of(ty.skip_binder().def_id); PathSegment { name: item.name, args: GenericArgs::AngleBracketed { - args: substs_to_args(cx, &ty.substs[generics.parent_count..], false).into(), + args: substs_to_args(cx, ty.map_bound(|ty| &ty.substs[generics.parent_count..]), false) + .into(), bindings: Default::default(), }, } @@ -470,7 +478,11 @@ fn clean_generic_param_def<'tcx>( } ty::GenericParamDefKind::Type { has_default, synthetic, .. } => { let default = if has_default { - Some(clean_middle_ty(cx.tcx.type_of(def.def_id), cx, Some(def.def_id))) + Some(clean_middle_ty( + ty::Binder::dummy(cx.tcx.type_of(def.def_id)), + cx, + Some(def.def_id), + )) } else { None }; @@ -488,7 +500,11 @@ fn clean_generic_param_def<'tcx>( def.name, GenericParamDefKind::Const { did: def.def_id, - ty: Box::new(clean_middle_ty(cx.tcx.type_of(def.def_id), cx, Some(def.def_id))), + ty: Box::new(clean_middle_ty( + ty::Binder::dummy(cx.tcx.type_of(def.def_id)), + cx, + Some(def.def_id), + )), default: match has_default { true => Some(Box::new(cx.tcx.const_param_default(def.def_id).to_string())), false => None, @@ -733,8 +749,10 @@ fn clean_ty_generics<'tcx>( .collect::<ThinVec<GenericParamDef>>(); // param index -> [(trait DefId, associated type name & generics, type, higher-ranked params)] - let mut impl_trait_proj = - FxHashMap::<u32, Vec<(DefId, PathSegment, Ty<'_>, Vec<GenericParamDef>)>>::default(); + let mut impl_trait_proj = FxHashMap::< + u32, + Vec<(DefId, PathSegment, ty::Binder<'_, Ty<'_>>, Vec<GenericParamDef>)>, + >::default(); let where_predicates = preds .predicates @@ -783,8 +801,8 @@ fn clean_ty_generics<'tcx>( let proj = projection.map(|p| { ( - clean_projection(p.skip_binder().projection_ty, cx, None), - p.skip_binder().term, + clean_projection(p.map_bound(|p| p.projection_ty), cx, None), + p.map_bound(|p| p.term), ) }); if let Some(((_, trait_did, name), rhs)) = proj @@ -795,7 +813,7 @@ fn clean_ty_generics<'tcx>( impl_trait_proj.entry(param_idx).or_default().push(( trait_did, name, - rhs.ty().unwrap(), + rhs.map_bound(|rhs| rhs.ty().unwrap()), p.get_bound_params() .into_iter() .flatten() @@ -1066,7 +1084,7 @@ fn clean_fn_decl_from_did_and_sig<'tcx>( // We assume all empty tuples are default return type. This theoretically can discard `-> ()`, // but shouldn't change any code meaning. - let output = match clean_middle_ty(sig.skip_binder().output(), cx, None) { + let output = match clean_middle_ty(sig.output(), cx, None) { Type::Tuple(inner) if inner.is_empty() => DefaultReturn, ty => Return(ty), }; @@ -1076,11 +1094,10 @@ fn clean_fn_decl_from_did_and_sig<'tcx>( c_variadic: sig.skip_binder().c_variadic, inputs: Arguments { values: sig - .skip_binder() .inputs() .iter() .map(|t| Argument { - type_: clean_middle_ty(*t, cx, None), + type_: clean_middle_ty(t.map_bound(|t| *t), cx, None), name: names .next() .map(|i| i.name) @@ -1134,7 +1151,8 @@ fn clean_trait_item<'tcx>(trait_item: &hir::TraitItem<'tcx>, cx: &mut DocContext hir::TraitItemKind::Type(bounds, Some(default)) => { let generics = enter_impl_trait(cx, |cx| clean_generics(trait_item.generics, cx)); let bounds = bounds.iter().filter_map(|x| clean_generic_bound(x, cx)).collect(); - let item_type = clean_middle_ty(hir_ty_to_ty(cx.tcx, default), cx, None); + let item_type = + clean_middle_ty(ty::Binder::dummy(hir_ty_to_ty(cx.tcx, default)), cx, None); AssocTypeItem( Box::new(Typedef { type_: clean_ty(default, cx), @@ -1173,7 +1191,8 @@ pub(crate) fn clean_impl_item<'tcx>( hir::ImplItemKind::Type(hir_ty) => { let type_ = clean_ty(hir_ty, cx); let generics = clean_generics(impl_.generics, cx); - let item_type = clean_middle_ty(hir_ty_to_ty(cx.tcx, hir_ty), cx, None); + let item_type = + clean_middle_ty(ty::Binder::dummy(hir_ty_to_ty(cx.tcx, hir_ty)), cx, None); AssocTypeItem( Box::new(Typedef { type_, generics, item_type: Some(item_type) }), Vec::new(), @@ -1192,7 +1211,11 @@ pub(crate) fn clean_middle_assoc_item<'tcx>( let tcx = cx.tcx; let kind = match assoc_item.kind { ty::AssocKind::Const => { - let ty = clean_middle_ty(tcx.type_of(assoc_item.def_id), cx, Some(assoc_item.def_id)); + let ty = clean_middle_ty( + ty::Binder::dummy(tcx.type_of(assoc_item.def_id)), + cx, + Some(assoc_item.def_id), + ); let provided = match assoc_item.container { ty::ImplContainer => true, @@ -1375,7 +1398,7 @@ pub(crate) fn clean_middle_assoc_item<'tcx>( AssocTypeItem( Box::new(Typedef { type_: clean_middle_ty( - tcx.type_of(assoc_item.def_id), + ty::Binder::dummy(tcx.type_of(assoc_item.def_id)), cx, Some(assoc_item.def_id), ), @@ -1393,7 +1416,7 @@ pub(crate) fn clean_middle_assoc_item<'tcx>( AssocTypeItem( Box::new(Typedef { type_: clean_middle_ty( - tcx.type_of(assoc_item.def_id), + ty::Binder::dummy(tcx.type_of(assoc_item.def_id)), cx, Some(assoc_item.def_id), ), @@ -1437,8 +1460,11 @@ fn clean_qpath<'tcx>(hir_ty: &hir::Ty<'tcx>, cx: &mut DocContext<'tcx>) -> Type hir::QPath::Resolved(Some(qself), p) => { // Try to normalize `<X as Y>::T` to a type let ty = hir_ty_to_ty(cx.tcx, hir_ty); - if let Some(normalized_value) = normalize(cx, ty) { - return clean_middle_ty(normalized_value, cx, None); + // `hir_to_ty` can return projection types with escaping vars for GATs, e.g. `<() as Trait>::Gat<'_>` + if !ty.has_escaping_bound_vars() { + if let Some(normalized_value) = normalize(cx, ty::Binder::dummy(ty)) { + return clean_middle_ty(normalized_value, cx, None); + } } let trait_segments = &p.segments[..p.segments.len() - 1]; @@ -1461,11 +1487,13 @@ fn clean_qpath<'tcx>(hir_ty: &hir::Ty<'tcx>, cx: &mut DocContext<'tcx>) -> Type hir::QPath::TypeRelative(qself, segment) => { let ty = hir_ty_to_ty(cx.tcx, hir_ty); let res = match ty.kind() { - ty::Projection(proj) => Res::Def(DefKind::Trait, proj.trait_ref(cx.tcx).def_id), + ty::Alias(ty::Projection, proj) => { + Res::Def(DefKind::Trait, proj.trait_ref(cx.tcx).def_id) + } // Rustdoc handles `ty::Error`s by turning them into `Type::Infer`s. ty::Error(_) => return Type::Infer, // Otherwise, this is an inherent associated type. - _ => return clean_middle_ty(ty, cx, None), + _ => return clean_middle_ty(ty::Binder::dummy(ty), cx, None), }; let trait_ = clean_path(&hir::Path { span, res, segments: &[] }, cx); register_res(cx, trait_.res); @@ -1632,7 +1660,10 @@ pub(crate) fn clean_ty<'tcx>(ty: &hir::Ty<'tcx>, cx: &mut DocContext<'tcx>) -> T } /// Returns `None` if the type could not be normalized -fn normalize<'tcx>(cx: &mut DocContext<'tcx>, ty: Ty<'tcx>) -> Option<Ty<'tcx>> { +fn normalize<'tcx>( + cx: &mut DocContext<'tcx>, + ty: ty::Binder<'tcx, Ty<'tcx>>, +) -> Option<ty::Binder<'tcx, Ty<'tcx>>> { // HACK: low-churn fix for #79459 while we wait for a trait normalization fix if !cx.tcx.sess.opts.unstable_opts.normalize_docs { return None; @@ -1660,14 +1691,14 @@ fn normalize<'tcx>(cx: &mut DocContext<'tcx>, ty: Ty<'tcx>) -> Option<Ty<'tcx>> } } +#[instrument(level = "trace", skip(cx), ret)] pub(crate) fn clean_middle_ty<'tcx>( - ty: Ty<'tcx>, + bound_ty: ty::Binder<'tcx, Ty<'tcx>>, cx: &mut DocContext<'tcx>, def_id: Option<DefId>, ) -> Type { - trace!("cleaning type: {:?}", ty); - let ty = normalize(cx, ty).unwrap_or(ty); - match *ty.kind() { + let bound_ty = normalize(cx, bound_ty).unwrap_or(bound_ty); + match *bound_ty.skip_binder().kind() { ty::Never => Primitive(PrimitiveType::Never), ty::Bool => Primitive(PrimitiveType::Bool), ty::Char => Primitive(PrimitiveType::Char), @@ -1675,20 +1706,23 @@ pub(crate) fn clean_middle_ty<'tcx>( ty::Uint(uint_ty) => Primitive(uint_ty.into()), ty::Float(float_ty) => Primitive(float_ty.into()), ty::Str => Primitive(PrimitiveType::Str), - ty::Slice(ty) => Slice(Box::new(clean_middle_ty(ty, cx, None))), + ty::Slice(ty) => Slice(Box::new(clean_middle_ty(bound_ty.rebind(ty), cx, None))), ty::Array(ty, mut n) => { n = n.eval(cx.tcx, ty::ParamEnv::reveal_all()); let n = print_const(cx, n); - Array(Box::new(clean_middle_ty(ty, cx, None)), n.into()) + Array(Box::new(clean_middle_ty(bound_ty.rebind(ty), cx, None)), n.into()) + } + ty::RawPtr(mt) => { + RawPointer(mt.mutbl, Box::new(clean_middle_ty(bound_ty.rebind(mt.ty), cx, None))) } - ty::RawPtr(mt) => RawPointer(mt.mutbl, Box::new(clean_middle_ty(mt.ty, cx, None))), ty::Ref(r, ty, mutbl) => BorrowedRef { lifetime: clean_middle_region(r), mutability: mutbl, - type_: Box::new(clean_middle_ty(ty, cx, None)), + type_: Box::new(clean_middle_ty(bound_ty.rebind(ty), cx, None)), }, ty::FnDef(..) | ty::FnPtr(_) => { - let sig = ty.fn_sig(cx.tcx); + // FIXME: should we merge the outer and inner binders somehow? + let sig = bound_ty.skip_binder().fn_sig(cx.tcx); let decl = clean_fn_decl_from_did_and_sig(cx, None, sig); BareFunction(Box::new(BareFunctionDecl { unsafety: sig.unsafety(), @@ -1705,12 +1739,18 @@ pub(crate) fn clean_middle_ty<'tcx>( AdtKind::Enum => ItemType::Enum, }; inline::record_extern_fqn(cx, did, kind); - let path = external_path(cx, did, false, ThinVec::new(), substs); + let path = external_path(cx, did, false, ThinVec::new(), bound_ty.rebind(substs)); Type::Path { path } } ty::Foreign(did) => { inline::record_extern_fqn(cx, did, ItemType::ForeignType); - let path = external_path(cx, did, false, ThinVec::new(), InternalSubsts::empty()); + let path = external_path( + cx, + did, + false, + ThinVec::new(), + ty::Binder::dummy(InternalSubsts::empty()), + ); Type::Path { path } } ty::Dynamic(obj, ref reg, _) => { @@ -1721,11 +1761,11 @@ pub(crate) fn clean_middle_ty<'tcx>( let did = obj .principal_def_id() .or_else(|| dids.next()) - .unwrap_or_else(|| panic!("found trait object `{:?}` with no traits?", ty)); + .unwrap_or_else(|| panic!("found trait object `{bound_ty:?}` with no traits?")); let substs = match obj.principal() { - Some(principal) => principal.skip_binder().substs, + Some(principal) => principal.map_bound(|p| p.substs), // marker traits have no substs. - _ => cx.tcx.intern_substs(&[]), + _ => ty::Binder::dummy(InternalSubsts::empty()), }; inline::record_extern_fqn(cx, did, ItemType::Trait); @@ -1736,7 +1776,7 @@ pub(crate) fn clean_middle_ty<'tcx>( let lifetime = clean_middle_region(*reg); let mut bounds = dids .map(|did| { - let empty = cx.tcx.intern_substs(&[]); + let empty = ty::Binder::dummy(InternalSubsts::empty()); let path = external_path(cx, did, false, ThinVec::new(), empty); inline::record_extern_fqn(cx, did, ItemType::Trait); PolyTrait { trait_: path, generic_params: Vec::new() } @@ -1747,15 +1787,17 @@ pub(crate) fn clean_middle_ty<'tcx>( .projection_bounds() .map(|pb| TypeBinding { assoc: projection_to_path_segment( - pb.skip_binder() - // HACK(compiler-errors): Doesn't actually matter what self - // type we put here, because we're only using the GAT's substs. - .with_self_ty(cx.tcx, cx.tcx.types.self_param) - .projection_ty, + pb.map_bound(|pb| { + pb + // HACK(compiler-errors): Doesn't actually matter what self + // type we put here, because we're only using the GAT's substs. + .with_self_ty(cx.tcx, cx.tcx.types.self_param) + .projection_ty + }), cx, ), kind: TypeBindingKind::Equality { - term: clean_middle_term(pb.skip_binder().term, cx), + term: clean_middle_term(pb.map_bound(|pb| pb.term), cx), }, }) .collect(); @@ -1779,9 +1821,11 @@ pub(crate) fn clean_middle_ty<'tcx>( DynTrait(bounds, lifetime) } - ty::Tuple(t) => Tuple(t.iter().map(|t| clean_middle_ty(t, cx, None)).collect()), + ty::Tuple(t) => { + Tuple(t.iter().map(|t| clean_middle_ty(bound_ty.rebind(t), cx, None)).collect()) + } - ty::Projection(ref data) => clean_projection(*data, cx, def_id), + ty::Alias(ty::Projection, ref data) => clean_projection(bound_ty.rebind(*data), cx, def_id), ty::Param(ref p) => { if let Some(bounds) = cx.impl_trait_bounds.remove(&p.index.into()) { @@ -1791,7 +1835,7 @@ pub(crate) fn clean_middle_ty<'tcx>( } } - ty::Opaque(def_id, substs) => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id, substs, .. }) => { // Grab the "TraitA + TraitB" from `impl TraitA + TraitB`, // by looking up the bounds associated with the def_id. let bounds = cx @@ -1854,9 +1898,12 @@ fn clean_middle_opaque_bounds<'tcx>( { if proj.projection_ty.trait_ref(cx.tcx) == trait_ref.skip_binder() { Some(TypeBinding { - assoc: projection_to_path_segment(proj.projection_ty, cx), + assoc: projection_to_path_segment( + bound.kind().rebind(proj.projection_ty), + cx, + ), kind: TypeBindingKind::Equality { - term: clean_middle_term(proj.term, cx), + term: clean_middle_term(bound.kind().rebind(proj.term), cx), }, }) } else { @@ -1887,7 +1934,7 @@ pub(crate) fn clean_middle_field<'tcx>(field: &ty::FieldDef, cx: &mut DocContext clean_field_with_def_id( field.did, field.name, - clean_middle_ty(cx.tcx.type_of(field.did), cx, Some(field.did)), + clean_middle_ty(ty::Binder::dummy(cx.tcx.type_of(field.did)), cx, Some(field.did)), cx, ) } @@ -2100,7 +2147,7 @@ fn clean_maybe_renamed_item<'tcx>( }), ItemKind::TyAlias(hir_ty, generics) => { let rustdoc_ty = clean_ty(hir_ty, cx); - let ty = clean_middle_ty(hir_ty_to_ty(cx.tcx, hir_ty), cx, None); + let ty = clean_middle_ty(ty::Binder::dummy(hir_ty_to_ty(cx.tcx, hir_ty)), cx, None); TypedefItem(Box::new(Typedef { type_: rustdoc_ty, generics: clean_generics(generics, cx), @@ -2211,7 +2258,9 @@ fn clean_impl<'tcx>( let for_ = clean_ty(impl_.self_ty, cx); let type_alias = for_.def_id(&cx.cache).and_then(|did| match tcx.def_kind(did) { - DefKind::TyAlias => Some(clean_middle_ty(tcx.type_of(did), cx, Some(did))), + DefKind::TyAlias => { + Some(clean_middle_ty(ty::Binder::dummy(tcx.type_of(did)), cx, Some(did))) + } _ => None, }); let mut make_item = |trait_: Option<Path>, for_: Type, items: Vec<Item>| { diff --git a/src/librustdoc/clean/types.rs b/src/librustdoc/clean/types.rs index 98329e7fc91..7a13e7e36d1 100644 --- a/src/librustdoc/clean/types.rs +++ b/src/librustdoc/clean/types.rs @@ -1343,7 +1343,7 @@ pub(crate) enum GenericBound { impl GenericBound { pub(crate) fn maybe_sized(cx: &mut DocContext<'_>) -> GenericBound { let did = cx.tcx.require_lang_item(LangItem::Sized, None); - let empty = cx.tcx.intern_substs(&[]); + let empty = ty::Binder::dummy(ty::InternalSubsts::empty()); let path = external_path(cx, did, false, ThinVec::new(), empty); inline::record_extern_fqn(cx, did, ItemType::Trait); GenericBound::TraitBound( @@ -1870,7 +1870,7 @@ impl PrimitiveType { } pub(crate) fn simplified_types() -> &'static SimplifiedTypes { - use ty::fast_reject::SimplifiedTypeGen::*; + use ty::fast_reject::SimplifiedType::*; use ty::{FloatTy, IntTy, UintTy}; use PrimitiveType::*; static CELL: OnceCell<SimplifiedTypes> = OnceCell::new(); diff --git a/src/librustdoc/clean/utils.rs b/src/librustdoc/clean/utils.rs index 246560bad29..a12f764fa8e 100644 --- a/src/librustdoc/clean/utils.rs +++ b/src/librustdoc/clean/utils.rs @@ -78,12 +78,16 @@ pub(crate) fn krate(cx: &mut DocContext<'_>) -> Crate { pub(crate) fn substs_to_args<'tcx>( cx: &mut DocContext<'tcx>, - substs: &[ty::subst::GenericArg<'tcx>], + substs: ty::Binder<'tcx, &[ty::subst::GenericArg<'tcx>]>, mut skip_first: bool, ) -> Vec<GenericArg> { let mut ret_val = - Vec::with_capacity(substs.len().saturating_sub(if skip_first { 1 } else { 0 })); - ret_val.extend(substs.iter().filter_map(|kind| match kind.unpack() { + Vec::with_capacity(substs.skip_binder().len().saturating_sub(if skip_first { + 1 + } else { + 0 + })); + ret_val.extend(substs.iter().filter_map(|kind| match kind.skip_binder().unpack() { GenericArgKind::Lifetime(lt) => { Some(GenericArg::Lifetime(clean_middle_region(lt).unwrap_or(Lifetime::elided()))) } @@ -91,8 +95,12 @@ pub(crate) fn substs_to_args<'tcx>( skip_first = false; None } - GenericArgKind::Type(ty) => Some(GenericArg::Type(clean_middle_ty(ty, cx, None))), - GenericArgKind::Const(ct) => Some(GenericArg::Const(Box::new(clean_middle_const(ct, cx)))), + GenericArgKind::Type(ty) => { + Some(GenericArg::Type(clean_middle_ty(kind.rebind(ty), cx, None))) + } + GenericArgKind::Const(ct) => { + Some(GenericArg::Const(Box::new(clean_middle_const(kind.rebind(ct), cx)))) + } })); ret_val } @@ -102,15 +110,20 @@ fn external_generic_args<'tcx>( did: DefId, has_self: bool, bindings: ThinVec<TypeBinding>, - substs: SubstsRef<'tcx>, + substs: ty::Binder<'tcx, SubstsRef<'tcx>>, ) -> GenericArgs { - let args = substs_to_args(cx, substs, has_self); + let args = substs_to_args(cx, substs.map_bound(|substs| &substs[..]), has_self); if cx.tcx.fn_trait_kind_from_def_id(did).is_some() { + let ty = substs + .iter() + .nth(if has_self { 1 } else { 0 }) + .unwrap() + .map_bound(|arg| arg.expect_ty()); let inputs = // The trait's first substitution is the one after self, if there is one. - match substs.iter().nth(if has_self { 1 } else { 0 }).unwrap().expect_ty().kind() { - ty::Tuple(tys) => tys.iter().map(|t| clean_middle_ty(t, cx, None)).collect::<Vec<_>>().into(), + match ty.skip_binder().kind() { + ty::Tuple(tys) => tys.iter().map(|t| clean_middle_ty(ty.rebind(t), cx, None)).collect::<Vec<_>>().into(), _ => return GenericArgs::AngleBracketed { args: args.into(), bindings }, }; let output = bindings.into_iter().next().and_then(|binding| match binding.kind { @@ -130,7 +143,7 @@ pub(super) fn external_path<'tcx>( did: DefId, has_self: bool, bindings: ThinVec<TypeBinding>, - substs: SubstsRef<'tcx>, + substs: ty::Binder<'tcx, SubstsRef<'tcx>>, ) -> Path { let def_kind = cx.tcx.def_kind(did); let name = cx.tcx.item_name(did); diff --git a/src/librustdoc/formats/item_type.rs b/src/librustdoc/formats/item_type.rs index f21e60a64e0..2f1f4cbf359 100644 --- a/src/librustdoc/formats/item_type.rs +++ b/src/librustdoc/formats/item_type.rs @@ -177,6 +177,9 @@ impl ItemType { ItemType::TraitAlias => "traitalias", } } + pub(crate) fn is_method(&self) -> bool { + matches!(*self, ItemType::Method | ItemType::TyMethod) + } } impl fmt::Display for ItemType { diff --git a/src/librustdoc/html/markdown.rs b/src/librustdoc/html/markdown.rs index 1e1c657b0bf..aeaee524fd4 100644 --- a/src/librustdoc/html/markdown.rs +++ b/src/librustdoc/html/markdown.rs @@ -236,12 +236,12 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for CodeBlocks<'_, 'a, I> { return event; }; - let mut origtext = String::new(); + let mut original_text = String::new(); for event in &mut self.inner { match event { Event::End(Tag::CodeBlock(..)) => break, Event::Text(ref s) => { - origtext.push_str(s); + original_text.push_str(s); } _ => {} } @@ -258,7 +258,7 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for CodeBlocks<'_, 'a, I> { <pre class=\"language-{}\"><code>{}</code></pre>\ </div>", lang, - Escape(&origtext), + Escape(&original_text), ) .into(), )); @@ -268,7 +268,7 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for CodeBlocks<'_, 'a, I> { CodeBlockKind::Indented => Default::default(), }; - let lines = origtext.lines().filter_map(|l| map_line(l).for_html()); + let lines = original_text.lines().filter_map(|l| map_line(l).for_html()); let text = lines.intersperse("\n".into()).collect::<String>(); compile_fail = parse_result.compile_fail; @@ -285,7 +285,7 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for CodeBlocks<'_, 'a, I> { if url.is_empty() { return None; } - let test = origtext + let test = original_text .lines() .map(|l| map_line(l).for_code()) .intersperse("\n".into()) @@ -567,11 +567,12 @@ struct SummaryLine<'a, I: Iterator<Item = Event<'a>>> { inner: I, started: bool, depth: u32, + skipped_tags: u32, } impl<'a, I: Iterator<Item = Event<'a>>> SummaryLine<'a, I> { fn new(iter: I) -> Self { - SummaryLine { inner: iter, started: false, depth: 0 } + SummaryLine { inner: iter, started: false, depth: 0, skipped_tags: 0 } } } @@ -601,6 +602,7 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for SummaryLine<'a, I> { let is_allowed_tag = match event { Event::Start(ref c) => { if is_forbidden_tag(c) { + self.skipped_tags += 1; return None; } self.depth += 1; @@ -608,6 +610,7 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for SummaryLine<'a, I> { } Event::End(ref c) => { if is_forbidden_tag(c) { + self.skipped_tags += 1; return None; } self.depth -= 1; @@ -616,6 +619,9 @@ impl<'a, I: Iterator<Item = Event<'a>>> Iterator for SummaryLine<'a, I> { } _ => true, }; + if !is_allowed_tag { + self.skipped_tags += 1; + } return if !is_allowed_tag { if is_start { Some(Event::Start(Tag::Paragraph)) @@ -1096,11 +1102,11 @@ impl MarkdownItemInfo<'_> { } impl MarkdownSummaryLine<'_> { - pub(crate) fn into_string(self) -> String { + pub(crate) fn into_string_with_has_more_content(self) -> (String, bool) { let MarkdownSummaryLine(md, links) = self; // This is actually common enough to special-case if md.is_empty() { - return String::new(); + return (String::new(), false); } let mut replacer = |broken_link: BrokenLink<'_>| { @@ -1110,17 +1116,26 @@ impl MarkdownSummaryLine<'_> { .map(|link| (link.href.as_str().into(), link.new_text.as_str().into())) }; - let p = Parser::new_with_broken_link_callback(md, summary_opts(), Some(&mut replacer)); + let p = Parser::new_with_broken_link_callback(md, summary_opts(), Some(&mut replacer)) + .peekable(); + let mut summary = SummaryLine::new(p); let mut s = String::new(); - let without_paragraphs = LinkReplacer::new(SummaryLine::new(p), links).filter(|event| { + let without_paragraphs = LinkReplacer::new(&mut summary, links).filter(|event| { !matches!(event, Event::Start(Tag::Paragraph) | Event::End(Tag::Paragraph)) }); html::push_html(&mut s, without_paragraphs); - s + let has_more_content = + matches!(summary.inner.peek(), Some(Event::Start(_))) || summary.skipped_tags > 0; + + (s, has_more_content) + } + + pub(crate) fn into_string(self) -> String { + self.into_string_with_has_more_content().0 } } diff --git a/src/librustdoc/html/render/context.rs b/src/librustdoc/html/render/context.rs index 73690c86f4f..d4d3e4f6ea7 100644 --- a/src/librustdoc/html/render/context.rs +++ b/src/librustdoc/html/render/context.rs @@ -637,7 +637,7 @@ impl<'tcx> FormatRenderer<'tcx> for Context<'tcx> { You need to enable Javascript be able to update your settings.\ </section>\ </noscript>\ - <link rel=\"stylesheet\" type=\"text/css\" \ + <link rel=\"stylesheet\" \ href=\"{static_root_path}{settings_css}\">\ <script defer src=\"{static_root_path}{settings_js}\"></script>", static_root_path = page.get_static_root_path(), diff --git a/src/librustdoc/html/render/mod.rs b/src/librustdoc/html/render/mod.rs index 36d15ec3b86..146e5010e4e 100644 --- a/src/librustdoc/html/render/mod.rs +++ b/src/librustdoc/html/render/mod.rs @@ -467,9 +467,10 @@ fn document_short( return; } if let Some(s) = item.doc_value() { - let mut summary_html = MarkdownSummaryLine(&s, &item.links(cx)).into_string(); + let (mut summary_html, has_more_content) = + MarkdownSummaryLine(&s, &item.links(cx)).into_string_with_has_more_content(); - if s.contains('\n') { + if has_more_content { let link = format!(r#" <a{}>Read more</a>"#, assoc_href_attr(item, link, cx)); if let Some(idx) = summary_html.rfind("</p>") { @@ -1512,8 +1513,7 @@ fn render_impl( let toggled = !doc_buffer.is_empty(); if toggled { - let method_toggle_class = - if item_type == ItemType::Method { " method-toggle" } else { "" }; + let method_toggle_class = if item_type.is_method() { " method-toggle" } else { "" }; write!(w, "<details class=\"rustdoc-toggle{}\" open><summary>", method_toggle_class); } match &*item.kind { diff --git a/src/librustdoc/html/render/print_item.rs b/src/librustdoc/html/render/print_item.rs index acbe3f22889..a7b57c373e3 100644 --- a/src/librustdoc/html/render/print_item.rs +++ b/src/librustdoc/html/render/print_item.rs @@ -732,7 +732,8 @@ fn item_trait(w: &mut Buffer, cx: &mut Context<'_>, it: &clean::Item, t: &clean: document(&mut content, cx, m, Some(t), HeadingOffset::H5); let toggled = !content.is_empty(); if toggled { - write!(w, "<details class=\"rustdoc-toggle method-toggle\" open><summary>"); + let method_toggle_class = if item_type.is_method() { " method-toggle" } else { "" }; + write!(w, "<details class=\"rustdoc-toggle{method_toggle_class}\" open><summary>"); } write!(w, "<section id=\"{}\" class=\"method has-srclink\">", id); render_rightside(w, cx, m, t, RenderMode::Normal); diff --git a/src/librustdoc/html/static/css/rustdoc.css b/src/librustdoc/html/static/css/rustdoc.css index 91162ca4892..022ed606cc3 100644 --- a/src/librustdoc/html/static/css/rustdoc.css +++ b/src/librustdoc/html/static/css/rustdoc.css @@ -396,15 +396,15 @@ img { overflow-y: hidden; } -.source .sidebar, #sidebar-toggle, #source-sidebar { +.source .sidebar, #src-sidebar-toggle, #source-sidebar { background-color: var(--sidebar-background-color); } -#sidebar-toggle > button:hover, #sidebar-toggle > button:focus { +#src-sidebar-toggle > button:hover, #src-sidebar-toggle > button:focus { background-color: var(--sidebar-background-color-hover); } -.source .sidebar > *:not(#sidebar-toggle) { +.source .sidebar > *:not(#src-sidebar-toggle) { visibility: hidden; } @@ -413,7 +413,7 @@ img { flex-basis: 300px; } -.source-sidebar-expanded .source .sidebar > *:not(#sidebar-toggle) { +.source-sidebar-expanded .source .sidebar > *:not(#src-sidebar-toggle) { visibility: visible; } @@ -523,7 +523,6 @@ ul.block, .block li { } .source .content pre.rust { - overflow: auto; padding-left: 0; } @@ -586,8 +585,8 @@ ul.block, .block li { text-overflow: ellipsis; } /* Wrap non-pre code blocks (`text`) but not (```text```). */ -.docblock > :not(pre) > code, -.docblock-short > code { +.docblock :not(pre) > code, +.docblock-short code { white-space: pre-wrap; } @@ -903,10 +902,11 @@ so that we can apply CSS-filters to change the arrow color in themes */ top: 100%; right: 0; z-index: 2; - display: block; margin-top: 7px; border-radius: 3px; border: 1px solid var(--border-color); + background-color: var(--main-background-color); + color: var(--main-color); --popover-arrow-offset: 11px; } @@ -917,16 +917,12 @@ so that we can apply CSS-filters to change the arrow color in themes */ right: var(--popover-arrow-offset); border: solid var(--border-color); border-width: 1px 1px 0 0; + background-color: var(--main-background-color); padding: 4px; transform: rotate(-45deg); top: -5px; } -.popover, .popover::before { - background-color: var(--main-background-color); - color: var(--main-color); -} - /* use larger max-width for help popover, but not for help.html */ #help.popover { max-width: 600px; @@ -1075,6 +1071,10 @@ pre.rust .doccomment { color: var(--code-highlight-doc-comment-color); } +.rustdoc.source .example-wrap pre.rust a { + background: var(--codeblock-link-background); +} + .example-wrap.compile_fail, .example-wrap.should_panic { border-left: 2px solid var(--codeblock-error-color); @@ -1118,8 +1118,7 @@ pre.rust .doccomment { top: 5px; } -.example-wrap .tooltip::after { - display: none; +.example-wrap .tooltip:hover::after { text-align: center; padding: 5px 3px 3px 3px; border-radius: 6px; @@ -1134,35 +1133,30 @@ pre.rust .doccomment { color: var(--tooltip-color); } -.example-wrap .tooltip::before { +.example-wrap .tooltip:hover::before { content: " "; position: absolute; top: 50%; left: 16px; margin-top: -5px; - display: none; z-index: 1; border: 5px solid transparent; border-right-color: var(--tooltip-background-color); } -.example-wrap.ignore .tooltip::after { +.example-wrap.ignore .tooltip:hover::after { content: "This example is not tested"; } -.example-wrap.compile_fail .tooltip::after { +.example-wrap.compile_fail .tooltip:hover::after { content: "This example deliberately fails to compile"; } -.example-wrap.should_panic .tooltip::after { +.example-wrap.should_panic .tooltip:hover::after { content: "This example panics"; } -.example-wrap.edition .tooltip::after { +.example-wrap.edition .tooltip:hover::after { content: "This code runs with edition " attr(data-edition); } -.example-wrap .tooltip:hover::before, .example-wrap .tooltip:hover::after { - display: inline; -} - .example-wrap.compile_fail .tooltip, .example-wrap.should_panic .tooltip, .example-wrap.ignore .tooltip { @@ -1295,7 +1289,7 @@ a.test-arrow:hover { font-size: 1rem; } -#sidebar-toggle { +#src-sidebar-toggle { position: sticky; top: 0; left: 0; @@ -1324,7 +1318,7 @@ a.test-arrow:hover { #source-sidebar div.files > a.selected { background-color: var(--source-sidebar-background-selected); } -#sidebar-toggle > button { +#src-sidebar-toggle > button { font-size: inherit; font-weight: bold; background: none; @@ -1400,7 +1394,6 @@ kbd { vertical-align: middle; border: solid 1px var(--border-color); border-radius: 3px; - cursor: default; color: var(--kbd--color); background-color: var(--kbd-background); box-shadow: inset 0 -1px 0 var(--kbd-box-shadow-color); @@ -1727,7 +1720,7 @@ in storage.js left: -11px; } - #sidebar-toggle { + #src-sidebar-toggle { position: fixed; left: 1px; top: 100px; @@ -1741,7 +1734,7 @@ in storage.js border-left: 0; } - .source-sidebar-expanded #sidebar-toggle { + .source-sidebar-expanded #src-sidebar-toggle { left: unset; top: unset; width: unset; @@ -1852,10 +1845,10 @@ in storage.js width: 35px; } - #sidebar-toggle { + #src-sidebar-toggle { top: 10px; } - .source-sidebar-expanded #sidebar-toggle { + .source-sidebar-expanded #src-sidebar-toggle { top: unset; } } @@ -1873,6 +1866,7 @@ in storage.js } .variants > .docblock, +.implementors-toggle > .docblock, .impl-items > .rustdoc-toggle[open]:not(:last-child), .methods > .rustdoc-toggle[open]:not(:last-child), .implementors-toggle[open]:not(:last-child) { @@ -1973,7 +1967,6 @@ in storage.js } .scraped-example .code-wrapper .src-line-numbers { - margin: 0; padding: 14px 0; } @@ -2010,7 +2003,6 @@ in storage.js .more-examples-toggle .hide-more { margin-left: 25px; - margin-bottom: 5px; cursor: pointer; } @@ -2038,16 +2030,12 @@ in storage.js height: 100%; } -.more-scraped-examples .scraped-example { - margin-bottom: 20px; -} - -.more-scraped-examples .scraped-example:last-child { - margin-bottom: 0; +.more-scraped-examples .scraped-example, .example-links { + margin-top: 20px; } -.example-links a { - margin-top: 20px; +.more-scraped-examples .scraped-example:first-child { + margin-top: 5px; } .example-links ul { diff --git a/src/librustdoc/html/static/css/settings.css b/src/librustdoc/html/static/css/settings.css index 1f6fb961e91..875a260c811 100644 --- a/src/librustdoc/html/static/css/settings.css +++ b/src/librustdoc/html/static/css/settings.css @@ -59,12 +59,6 @@ cursor: pointer; } -.setting-line > .sub-settings { - padding-left: 42px; - width: 100%; - display: block; -} - #settings .setting-line { margin: 1.2em 0.6em; } diff --git a/src/librustdoc/html/static/css/themes/ayu.css b/src/librustdoc/html/static/css/themes/ayu.css index eba845bf5a9..de0dfcd4690 100644 --- a/src/librustdoc/html/static/css/themes/ayu.css +++ b/src/librustdoc/html/static/css/themes/ayu.css @@ -88,6 +88,7 @@ Original by Dempfi (https://github.com/dempfi/ayu) --source-sidebar-background-selected: #14191f; --source-sidebar-background-hover: #14191f; --table-alt-row-background-color: #191f26; + --codeblock-link-background: #333; } h1, h2, h3, h4 { @@ -150,15 +151,10 @@ pre, .rustdoc.source .example-wrap { color: #c5c5c5; } -.content .item-info::before { color: #ccc; } - .sidebar h2 a, .sidebar h3 a { color: white; } -body.source .example-wrap pre.rust a { - background: #333; -} .result-name .primitive > i, .result-name .keyword > i { color: #788797; diff --git a/src/librustdoc/html/static/css/themes/dark.css b/src/librustdoc/html/static/css/themes/dark.css index d945e956c53..dd7fc689253 100644 --- a/src/librustdoc/html/static/css/themes/dark.css +++ b/src/librustdoc/html/static/css/themes/dark.css @@ -83,12 +83,7 @@ --source-sidebar-background-selected: #333; --source-sidebar-background-hover: #444; --table-alt-row-background-color: #2A2A2A; -} - -.content .item-info::before { color: #ccc; } - -body.source .example-wrap pre.rust a { - background: #333; + --codeblock-link-background: #333; } #titles > button:not(.selected) { diff --git a/src/librustdoc/html/static/css/themes/light.css b/src/librustdoc/html/static/css/themes/light.css index 58955a79316..b69d8a1cff9 100644 --- a/src/librustdoc/html/static/css/themes/light.css +++ b/src/librustdoc/html/static/css/themes/light.css @@ -80,12 +80,7 @@ --source-sidebar-background-selected: #fff; --source-sidebar-background-hover: #e0e0e0; --table-alt-row-background-color: #F5F5F5; -} - -.content .item-info::before { color: #ccc; } - -body.source .example-wrap pre.rust a { - background: #eee; + --codeblock-link-background: #eee; } #titles > button:not(.selected) { diff --git a/src/librustdoc/html/static/js/main.js b/src/librustdoc/html/static/js/main.js index 152116089c7..3f97e4e2e39 100644 --- a/src/librustdoc/html/static/js/main.js +++ b/src/librustdoc/html/static/js/main.js @@ -184,7 +184,6 @@ function browserSupportsHistoryApi() { function loadCss(cssUrl) { const link = document.createElement("link"); link.href = cssUrl; - link.type = "text/css"; link.rel = "stylesheet"; document.getElementsByTagName("head")[0].appendChild(link); } diff --git a/src/librustdoc/html/static/js/source-script.js b/src/librustdoc/html/static/js/source-script.js index 5db768c1c57..0e1c864e62d 100644 --- a/src/librustdoc/html/static/js/source-script.js +++ b/src/librustdoc/html/static/js/source-script.js @@ -83,7 +83,7 @@ function toggleSidebar() { function createSidebarToggle() { const sidebarToggle = document.createElement("div"); - sidebarToggle.id = "sidebar-toggle"; + sidebarToggle.id = "src-sidebar-toggle"; const inner = document.createElement("button"); diff --git a/src/librustdoc/markdown.rs b/src/librustdoc/markdown.rs index 044e051440c..5f4ad6d2aea 100644 --- a/src/librustdoc/markdown.rs +++ b/src/librustdoc/markdown.rs @@ -53,7 +53,7 @@ pub(crate) fn render<P: AsRef<Path>>( let mut css = String::new(); for name in &options.markdown_css { - write!(css, r#"<link rel="stylesheet" type="text/css" href="{name}">"#) + write!(css, r#"<link rel="stylesheet" href="{name}">"#) .expect("Writing to a String can't fail"); } diff --git a/src/librustdoc/passes/collect_intra_doc_links.rs b/src/librustdoc/passes/collect_intra_doc_links.rs index 37a28b6b7bd..4f0eb8b8076 100644 --- a/src/librustdoc/passes/collect_intra_doc_links.rs +++ b/src/librustdoc/passes/collect_intra_doc_links.rs @@ -538,11 +538,10 @@ impl<'a, 'tcx> LinkCollector<'a, 'tcx> { ty::Adt(ty::AdtDef(Interned(&ty::AdtDefData { did, .. }, _)), _) | ty::Foreign(did) => { Res::from_def_id(self.cx.tcx, did) } - ty::Projection(_) + ty::Alias(..) | ty::Closure(..) | ty::Generator(..) | ty::GeneratorWitness(_) - | ty::Opaque(..) | ty::Dynamic(..) | ty::Param(_) | ty::Bound(..) diff --git a/src/test/codegen/avr/avr-func-addrspace.rs b/src/test/codegen/avr/avr-func-addrspace.rs index cbbcfad3ef4..e9740e30da4 100644 --- a/src/test/codegen/avr/avr-func-addrspace.rs +++ b/src/test/codegen/avr/avr-func-addrspace.rs @@ -9,7 +9,7 @@ // It also validates that functions can be called through function pointers // through traits. -#![feature(no_core, lang_items, unboxed_closures, arbitrary_self_types)] +#![feature(no_core, lang_items, intrinsics, unboxed_closures, arbitrary_self_types)] #![crate_type = "lib"] #![no_core] @@ -49,6 +49,10 @@ pub trait Fn<Args: Tuple>: FnOnce<Args> { extern "rust-call" fn call(&self, args: Args) -> Self::Output; } +extern "rust-intrinsic" { + pub fn transmute<Src, Dst>(src: Src) -> Dst; +} + pub static mut STORAGE_FOO: fn(&usize, &mut u32) -> Result<(), ()> = arbitrary_black_box; pub static mut STORAGE_BAR: u32 = 12; @@ -87,3 +91,21 @@ pub extern "C" fn test() { STORAGE_FOO(&1, &mut buf); } } + +// Validate that we can codegen transmutes between data ptrs and fn ptrs. + +// CHECK: define{{.+}}{{void \(\) addrspace\(1\)\*|ptr addrspace\(1\)}} @transmute_data_ptr_to_fn({{\{\}\*|ptr}}{{.*}} %x) +#[no_mangle] +pub unsafe fn transmute_data_ptr_to_fn(x: *const ()) -> fn() { + // It doesn't matter precisely how this is codegenned (through memory or an addrspacecast), + // as long as it doesn't cause a verifier error by using `bitcast`. + transmute(x) +} + +// CHECK: define{{.+}}{{\{\}\*|ptr}} @transmute_fn_ptr_to_data({{void \(\) addrspace\(1\)\*|ptr addrspace\(1\)}}{{.*}} %x) +#[no_mangle] +pub unsafe fn transmute_fn_ptr_to_data(x: fn()) -> *const () { + // It doesn't matter precisely how this is codegenned (through memory or an addrspacecast), + // as long as it doesn't cause a verifier error by using `bitcast`. + transmute(x) +} diff --git a/src/test/codegen/enum-match.rs b/src/test/codegen/enum-match.rs index 44f1b408d21..827eb20154a 100644 --- a/src/test/codegen/enum-match.rs +++ b/src/test/codegen/enum-match.rs @@ -34,8 +34,8 @@ pub enum Enum1 { // CHECK: define i8 @match1{{.*}} // CHECK-NEXT: start: -// CHECK-NEXT: %1 = {{.*}}call i8 @llvm.usub.sat.i8(i8 %0, i8 1) -// CHECK-NEXT: switch i8 %1, label {{.*}} [ +// CHECK-NEXT: [[DISCR:%.*]] = {{.*}}call i8 @llvm.usub.sat.i8(i8 %0, i8 1) +// CHECK-NEXT: switch i8 [[DISCR]], label {{.*}} [ #[no_mangle] pub fn match1(e: Enum1) -> u8 { use Enum1::*; diff --git a/src/test/incremental/hashes/loop_expressions.rs b/src/test/incremental/hashes/loop_expressions.rs index a12cd0d021e..ada541e644a 100644 --- a/src/test/incremental/hashes/loop_expressions.rs +++ b/src/test/incremental/hashes/loop_expressions.rs @@ -187,9 +187,9 @@ pub fn change_continue_label() { } #[cfg(not(any(cfail1,cfail4)))] -#[rustc_clean(cfg="cfail2", except="hir_owner_nodes, typeck")] +#[rustc_clean(cfg="cfail2", except="hir_owner_nodes")] #[rustc_clean(cfg="cfail3")] -#[rustc_clean(cfg="cfail5", except="hir_owner_nodes, typeck, optimized_mir")] +#[rustc_clean(cfg="cfail5", except="hir_owner_nodes, optimized_mir")] #[rustc_clean(cfg="cfail6")] pub fn change_continue_label() { let mut _x = 0; diff --git a/src/test/incremental/hashes/while_let_loops.rs b/src/test/incremental/hashes/while_let_loops.rs index f81855e42be..88fd4d89b28 100644 --- a/src/test/incremental/hashes/while_let_loops.rs +++ b/src/test/incremental/hashes/while_let_loops.rs @@ -158,9 +158,9 @@ pub fn change_break_label() { } #[cfg(not(any(cfail1,cfail4)))] -#[rustc_clean(cfg="cfail2", except="hir_owner_nodes,typeck")] +#[rustc_clean(cfg="cfail2", except="hir_owner_nodes")] #[rustc_clean(cfg="cfail3")] -#[rustc_clean(cfg="cfail5", except="hir_owner_nodes,typeck")] +#[rustc_clean(cfg="cfail5", except="hir_owner_nodes")] #[rustc_clean(cfg="cfail6")] pub fn change_break_label() { let mut _x = 0; @@ -210,9 +210,9 @@ pub fn change_continue_label() { } #[cfg(not(any(cfail1,cfail4)))] -#[rustc_clean(cfg="cfail2", except="hir_owner_nodes,typeck")] +#[rustc_clean(cfg="cfail2", except="hir_owner_nodes")] #[rustc_clean(cfg="cfail3")] -#[rustc_clean(cfg="cfail5", except="hir_owner_nodes,typeck")] +#[rustc_clean(cfg="cfail5", except="hir_owner_nodes")] #[rustc_clean(cfg="cfail6")] pub fn change_continue_label() { let mut _x = 0; diff --git a/src/test/incremental/hashes/while_loops.rs b/src/test/incremental/hashes/while_loops.rs index e432cf8fe4c..9b4d23757b8 100644 --- a/src/test/incremental/hashes/while_loops.rs +++ b/src/test/incremental/hashes/while_loops.rs @@ -158,9 +158,9 @@ pub fn change_break_label() { } #[cfg(not(any(cfail1,cfail4)))] -#[rustc_clean(cfg="cfail2", except="hir_owner_nodes,optimized_mir,typeck")] +#[rustc_clean(cfg="cfail2", except="hir_owner_nodes,optimized_mir")] #[rustc_clean(cfg="cfail3")] -#[rustc_clean(cfg="cfail5", except="hir_owner_nodes,optimized_mir,typeck")] +#[rustc_clean(cfg="cfail5", except="hir_owner_nodes,optimized_mir")] #[rustc_clean(cfg="cfail6")] pub fn change_break_label() { let mut _x = 0; @@ -212,9 +212,9 @@ pub fn change_continue_label() { } #[cfg(not(any(cfail1,cfail4)))] -#[rustc_clean(cfg="cfail2", except="hir_owner_nodes,typeck")] +#[rustc_clean(cfg="cfail2", except="hir_owner_nodes")] #[rustc_clean(cfg="cfail3")] -#[rustc_clean(cfg="cfail5", except="hir_owner_nodes,typeck,optimized_mir")] +#[rustc_clean(cfg="cfail5", except="hir_owner_nodes,optimized_mir")] #[rustc_clean(cfg="cfail6")] pub fn change_continue_label() { let mut _x = 0; diff --git a/src/test/mir-opt/building/custom/enums.rs b/src/test/mir-opt/building/custom/enums.rs new file mode 100644 index 00000000000..e5cd4563778 --- /dev/null +++ b/src/test/mir-opt/building/custom/enums.rs @@ -0,0 +1,120 @@ +#![feature(custom_mir, core_intrinsics)] + +extern crate core; +use core::intrinsics::mir::*; + +// EMIT_MIR enums.switch_bool.built.after.mir +#[custom_mir(dialect = "built")] +pub fn switch_bool(b: bool) -> u32 { + mir!( + { + match b { + true => t, + false => f, + _ => f, + } + } + + t = { + RET = 5; + Return() + } + + f = { + RET = 10; + Return() + } + ) +} + +// EMIT_MIR enums.switch_option.built.after.mir +#[custom_mir(dialect = "built")] +pub fn switch_option(option: Option<()>) -> bool { + mir!( + { + let discr = Discriminant(option); + match discr { + 0 => n, + 1 => s, + _ => s, + } + } + + n = { + RET = false; + Return() + } + + s = { + RET = true; + Return() + } + ) +} + +#[repr(u8)] +enum Bool { + False = 0, + True = 1, +} + +// EMIT_MIR enums.switch_option_repr.built.after.mir +#[custom_mir(dialect = "built")] +fn switch_option_repr(option: Bool) -> bool { + mir!( + { + let discr = Discriminant(option); + match discr { + 0 => f, + _ => t, + } + } + + t = { + RET = true; + Return() + } + + f = { + RET = false; + Return() + } + ) +} + +// EMIT_MIR enums.set_discr.built.after.mir +#[custom_mir(dialect = "runtime", phase = "initial")] +fn set_discr(option: &mut Option<()>) { + mir!({ + SetDiscriminant(*option, 0); + Return() + }) +} + +// EMIT_MIR enums.set_discr_repr.built.after.mir +#[custom_mir(dialect = "runtime", phase = "initial")] +fn set_discr_repr(b: &mut Bool) { + mir!({ + SetDiscriminant(*b, 0); + Return() + }) +} + +fn main() { + assert_eq!(switch_bool(true), 5); + assert_eq!(switch_bool(false), 10); + + assert_eq!(switch_option(Some(())), true); + assert_eq!(switch_option(None), false); + + assert_eq!(switch_option_repr(Bool::True), true); + assert_eq!(switch_option_repr(Bool::False), false); + + let mut opt = Some(()); + set_discr(&mut opt); + assert_eq!(opt, None); + + let mut b = Bool::True; + set_discr_repr(&mut b); + assert!(matches!(b, Bool::False)); +} diff --git a/src/test/mir-opt/building/custom/enums.set_discr.built.after.mir b/src/test/mir-opt/building/custom/enums.set_discr.built.after.mir new file mode 100644 index 00000000000..7de9ed0983f --- /dev/null +++ b/src/test/mir-opt/building/custom/enums.set_discr.built.after.mir @@ -0,0 +1,10 @@ +// MIR for `set_discr` after built + +fn set_discr(_1: &mut Option<()>) -> () { + let mut _0: (); // return place in scope 0 at $DIR/enums.rs:+0:39: +0:39 + + bb0: { + discriminant((*_1)) = 0; // scope 0 at $DIR/enums.rs:+2:9: +2:36 + return; // scope 0 at $DIR/enums.rs:+3:9: +3:17 + } +} diff --git a/src/test/mir-opt/building/custom/enums.set_discr_repr.built.after.mir b/src/test/mir-opt/building/custom/enums.set_discr_repr.built.after.mir new file mode 100644 index 00000000000..6fdc3d0f4d4 --- /dev/null +++ b/src/test/mir-opt/building/custom/enums.set_discr_repr.built.after.mir @@ -0,0 +1,10 @@ +// MIR for `set_discr_repr` after built + +fn set_discr_repr(_1: &mut Bool) -> () { + let mut _0: (); // return place in scope 0 at $DIR/enums.rs:+0:33: +0:33 + + bb0: { + discriminant((*_1)) = 0; // scope 0 at $DIR/enums.rs:+2:9: +2:31 + return; // scope 0 at $DIR/enums.rs:+3:9: +3:17 + } +} diff --git a/src/test/mir-opt/building/custom/enums.switch_bool.built.after.mir b/src/test/mir-opt/building/custom/enums.switch_bool.built.after.mir new file mode 100644 index 00000000000..95c57d2dca3 --- /dev/null +++ b/src/test/mir-opt/building/custom/enums.switch_bool.built.after.mir @@ -0,0 +1,19 @@ +// MIR for `switch_bool` after built + +fn switch_bool(_1: bool) -> u32 { + let mut _0: u32; // return place in scope 0 at $DIR/enums.rs:+0:32: +0:35 + + bb0: { + switchInt(_1) -> [1: bb1, 0: bb2, otherwise: bb2]; // scope 0 at $DIR/enums.rs:+3:13: +7:14 + } + + bb1: { + _0 = const 5_u32; // scope 0 at $DIR/enums.rs:+11:13: +11:20 + return; // scope 0 at $DIR/enums.rs:+12:13: +12:21 + } + + bb2: { + _0 = const 10_u32; // scope 0 at $DIR/enums.rs:+16:13: +16:21 + return; // scope 0 at $DIR/enums.rs:+17:13: +17:21 + } +} diff --git a/src/test/mir-opt/building/custom/enums.switch_option.built.after.mir b/src/test/mir-opt/building/custom/enums.switch_option.built.after.mir new file mode 100644 index 00000000000..a659ba7c114 --- /dev/null +++ b/src/test/mir-opt/building/custom/enums.switch_option.built.after.mir @@ -0,0 +1,21 @@ +// MIR for `switch_option` after built + +fn switch_option(_1: Option<()>) -> bool { + let mut _0: bool; // return place in scope 0 at $DIR/enums.rs:+0:45: +0:49 + let mut _2: isize; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + + bb0: { + _2 = discriminant(_1); // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + switchInt(_2) -> [0: bb1, 1: bb2, otherwise: bb2]; // scope 0 at $DIR/enums.rs:+4:13: +8:14 + } + + bb1: { + _0 = const false; // scope 0 at $DIR/enums.rs:+12:13: +12:24 + return; // scope 0 at $DIR/enums.rs:+13:13: +13:21 + } + + bb2: { + _0 = const true; // scope 0 at $DIR/enums.rs:+17:13: +17:23 + return; // scope 0 at $DIR/enums.rs:+18:13: +18:21 + } +} diff --git a/src/test/mir-opt/building/custom/enums.switch_option_repr.built.after.mir b/src/test/mir-opt/building/custom/enums.switch_option_repr.built.after.mir new file mode 100644 index 00000000000..d60e4b1b712 --- /dev/null +++ b/src/test/mir-opt/building/custom/enums.switch_option_repr.built.after.mir @@ -0,0 +1,21 @@ +// MIR for `switch_option_repr` after built + +fn switch_option_repr(_1: Bool) -> bool { + let mut _0: bool; // return place in scope 0 at $DIR/enums.rs:+0:40: +0:44 + let mut _2: u8; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + + bb0: { + _2 = discriminant(_1); // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + switchInt(_2) -> [0: bb2, otherwise: bb1]; // scope 0 at $DIR/enums.rs:+4:13: +7:14 + } + + bb1: { + _0 = const true; // scope 0 at $DIR/enums.rs:+11:13: +11:23 + return; // scope 0 at $DIR/enums.rs:+12:13: +12:21 + } + + bb2: { + _0 = const false; // scope 0 at $DIR/enums.rs:+16:13: +16:24 + return; // scope 0 at $DIR/enums.rs:+17:13: +17:21 + } +} diff --git a/src/test/mir-opt/building/custom/projections.rs b/src/test/mir-opt/building/custom/projections.rs new file mode 100644 index 00000000000..5e472e531c7 --- /dev/null +++ b/src/test/mir-opt/building/custom/projections.rs @@ -0,0 +1,85 @@ +#![feature(custom_mir, core_intrinsics)] + +extern crate core; +use core::intrinsics::mir::*; + +union U { + a: i32, + b: u32, +} + +// EMIT_MIR projections.unions.built.after.mir +#[custom_mir(dialect = "built")] +fn unions(u: U) -> i32 { + mir!({ + RET = u.a; + Return() + }) +} + +// EMIT_MIR projections.tuples.built.after.mir +#[custom_mir(dialect = "analysis", phase = "post-cleanup")] +fn tuples(i: (u32, i32)) -> (u32, i32) { + mir!( + // FIXME(JakobDegen): This is necessary because we can't give type hints for `RET` + let temp: (u32, i32); + { + temp.0 = i.0; + temp.1 = i.1; + + RET = temp; + Return() + } + ) +} + +// EMIT_MIR projections.unwrap.built.after.mir +#[custom_mir(dialect = "built")] +fn unwrap(opt: Option<i32>) -> i32 { + mir!({ + RET = Field(Variant(opt, 1), 0); + Return() + }) +} + +// EMIT_MIR projections.unwrap_deref.built.after.mir +#[custom_mir(dialect = "built")] +fn unwrap_deref(opt: Option<&i32>) -> i32 { + mir!({ + RET = *Field::<&i32>(Variant(opt, 1), 0); + Return() + }) +} + +// EMIT_MIR projections.set.built.after.mir +#[custom_mir(dialect = "built")] +fn set(opt: &mut Option<i32>) { + mir!({ + place!(Field(Variant(*opt, 1), 0)) = 10; + Return() + }) +} + +// EMIT_MIR projections.simple_index.built.after.mir +#[custom_mir(dialect = "built")] +fn simple_index(a: [i32; 10], b: &[i32]) -> i32 { + mir!({ + let temp = 3; + RET = a[temp]; + RET = (*b)[temp]; + Return() + }) +} + +fn main() { + assert_eq!(unions(U { a: 5 }), 5); + assert_eq!(tuples((5, 6)), (5, 6)); + + assert_eq!(unwrap(Some(5)), 5); + assert_eq!(unwrap_deref(Some(&5)), 5); + let mut o = Some(5); + set(&mut o); + assert_eq!(o, Some(10)); + + assert_eq!(simple_index([0; 10], &[0; 10]), 0); +} diff --git a/src/test/mir-opt/building/custom/projections.set.built.after.mir b/src/test/mir-opt/building/custom/projections.set.built.after.mir new file mode 100644 index 00000000000..2f15176a61f --- /dev/null +++ b/src/test/mir-opt/building/custom/projections.set.built.after.mir @@ -0,0 +1,10 @@ +// MIR for `set` after built + +fn set(_1: &mut Option<i32>) -> () { + let mut _0: (); // return place in scope 0 at $DIR/projections.rs:+0:31: +0:31 + + bb0: { + (((*_1) as variant#1).0: i32) = const 10_i32; // scope 0 at $DIR/projections.rs:+2:9: +2:48 + return; // scope 0 at $DIR/projections.rs:+3:9: +3:17 + } +} diff --git a/src/test/mir-opt/building/custom/projections.simple_index.built.after.mir b/src/test/mir-opt/building/custom/projections.simple_index.built.after.mir new file mode 100644 index 00000000000..fc422e4b3f0 --- /dev/null +++ b/src/test/mir-opt/building/custom/projections.simple_index.built.after.mir @@ -0,0 +1,13 @@ +// MIR for `simple_index` after built + +fn simple_index(_1: [i32; 10], _2: &[i32]) -> i32 { + let mut _0: i32; // return place in scope 0 at $DIR/projections.rs:+0:45: +0:48 + let mut _3: usize; // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + + bb0: { + _3 = const 3_usize; // scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + _0 = _1[_3]; // scope 0 at $DIR/projections.rs:+3:9: +3:22 + _0 = (*_2)[_3]; // scope 0 at $DIR/projections.rs:+4:9: +4:25 + return; // scope 0 at $DIR/projections.rs:+5:9: +5:17 + } +} diff --git a/src/test/mir-opt/building/custom/projections.tuples.built.after.mir b/src/test/mir-opt/building/custom/projections.tuples.built.after.mir new file mode 100644 index 00000000000..65487d3c9ed --- /dev/null +++ b/src/test/mir-opt/building/custom/projections.tuples.built.after.mir @@ -0,0 +1,13 @@ +// MIR for `tuples` after built + +fn tuples(_1: (u32, i32)) -> (u32, i32) { + let mut _0: (u32, i32); // return place in scope 0 at $DIR/projections.rs:+0:29: +0:39 + let mut _2: (u32, i32); // in scope 0 at $SRC_DIR/core/src/intrinsics/mir.rs:LL:COL + + bb0: { + (_2.0: u32) = (_1.0: u32); // scope 0 at $DIR/projections.rs:+5:13: +5:25 + (_2.1: i32) = (_1.1: i32); // scope 0 at $DIR/projections.rs:+6:13: +6:25 + _0 = _2; // scope 0 at $DIR/projections.rs:+8:13: +8:23 + return; // scope 0 at $DIR/projections.rs:+9:13: +9:21 + } +} diff --git a/src/test/mir-opt/building/custom/projections.unions.built.after.mir b/src/test/mir-opt/building/custom/projections.unions.built.after.mir new file mode 100644 index 00000000000..922538a5f17 --- /dev/null +++ b/src/test/mir-opt/building/custom/projections.unions.built.after.mir @@ -0,0 +1,10 @@ +// MIR for `unions` after built + +fn unions(_1: U) -> i32 { + let mut _0: i32; // return place in scope 0 at $DIR/projections.rs:+0:20: +0:23 + + bb0: { + _0 = (_1.0: i32); // scope 0 at $DIR/projections.rs:+2:9: +2:18 + return; // scope 0 at $DIR/projections.rs:+3:9: +3:17 + } +} diff --git a/src/test/mir-opt/building/custom/projections.unwrap.built.after.mir b/src/test/mir-opt/building/custom/projections.unwrap.built.after.mir new file mode 100644 index 00000000000..75b03a3c393 --- /dev/null +++ b/src/test/mir-opt/building/custom/projections.unwrap.built.after.mir @@ -0,0 +1,10 @@ +// MIR for `unwrap` after built + +fn unwrap(_1: Option<i32>) -> i32 { + let mut _0: i32; // return place in scope 0 at $DIR/projections.rs:+0:32: +0:35 + + bb0: { + _0 = ((_1 as variant#1).0: i32); // scope 0 at $DIR/projections.rs:+2:9: +2:40 + return; // scope 0 at $DIR/projections.rs:+3:9: +3:17 + } +} diff --git a/src/test/mir-opt/building/custom/projections.unwrap_deref.built.after.mir b/src/test/mir-opt/building/custom/projections.unwrap_deref.built.after.mir new file mode 100644 index 00000000000..c6b0f7efa9b --- /dev/null +++ b/src/test/mir-opt/building/custom/projections.unwrap_deref.built.after.mir @@ -0,0 +1,10 @@ +// MIR for `unwrap_deref` after built + +fn unwrap_deref(_1: Option<&i32>) -> i32 { + let mut _0: i32; // return place in scope 0 at $DIR/projections.rs:+0:39: +0:42 + + bb0: { + _0 = (*((_1 as variant#1).0: &i32)); // scope 0 at $DIR/projections.rs:+2:9: +2:49 + return; // scope 0 at $DIR/projections.rs:+3:9: +3:17 + } +} diff --git a/src/test/mir-opt/building/custom/references.raw_pointer.built.after.mir b/src/test/mir-opt/building/custom/references.raw_pointer.built.after.mir new file mode 100644 index 00000000000..775e5e3ad9b --- /dev/null +++ b/src/test/mir-opt/building/custom/references.raw_pointer.built.after.mir @@ -0,0 +1,10 @@ +// MIR for `raw_pointer` after built + +fn raw_pointer(_1: *const i32) -> *const i32 { + let mut _0: *const i32; // return place in scope 0 at $DIR/references.rs:+0:38: +0:48 + + bb0: { + _0 = &raw const (*_1); // scope 0 at $DIR/references.rs:+4:9: +4:27 + return; // scope 0 at $DIR/references.rs:+5:9: +5:17 + } +} diff --git a/src/test/mir-opt/building/custom/references.rs b/src/test/mir-opt/building/custom/references.rs index dee85722e86..c93f6ec624b 100644 --- a/src/test/mir-opt/building/custom/references.rs +++ b/src/test/mir-opt/building/custom/references.rs @@ -36,8 +36,22 @@ pub fn immut_ref(x: &i32) -> &i32 { ) } +// EMIT_MIR references.raw_pointer.built.after.mir +#[custom_mir(dialect = "built")] +pub fn raw_pointer(x: *const i32) -> *const i32 { + // Regression test for a bug in which unsafetyck was not correctly turned off for + // `dialect = "built"` + mir!({ + RET = addr_of!(*x); + Return() + }) +} + fn main() { let mut x = 5; assert_eq!(*mut_ref(&mut x), 5); assert_eq!(*immut_ref(&x), 5); + unsafe { + assert_eq!(*raw_pointer(addr_of!(x)), 5); + } } diff --git a/src/test/mir-opt/building/custom/terminators.assert_nonzero.built.after.mir b/src/test/mir-opt/building/custom/terminators.assert_nonzero.built.after.mir new file mode 100644 index 00000000000..a1a27226b4e --- /dev/null +++ b/src/test/mir-opt/building/custom/terminators.assert_nonzero.built.after.mir @@ -0,0 +1,17 @@ +// MIR for `assert_nonzero` after built + +fn assert_nonzero(_1: i32) -> () { + let mut _0: (); // return place in scope 0 at $DIR/terminators.rs:+0:27: +0:27 + + bb0: { + switchInt(_1) -> [0: bb1, otherwise: bb2]; // scope 0 at $DIR/terminators.rs:+3:13: +6:14 + } + + bb1: { + unreachable; // scope 0 at $DIR/terminators.rs:+10:13: +10:26 + } + + bb2: { + return; // scope 0 at $DIR/terminators.rs:+14:13: +14:21 + } +} diff --git a/src/test/mir-opt/building/custom/terminators.direct_call.built.after.mir b/src/test/mir-opt/building/custom/terminators.direct_call.built.after.mir new file mode 100644 index 00000000000..1b2345a965e --- /dev/null +++ b/src/test/mir-opt/building/custom/terminators.direct_call.built.after.mir @@ -0,0 +1,16 @@ +// MIR for `direct_call` after built + +fn direct_call(_1: i32) -> i32 { + let mut _0: i32; // return place in scope 0 at $DIR/terminators.rs:+0:27: +0:30 + + bb0: { + _0 = ident::<i32>(_1) -> bb1; // scope 0 at $DIR/terminators.rs:+3:13: +3:42 + // mir::Constant + // + span: $DIR/terminators.rs:15:33: 15:38 + // + literal: Const { ty: fn(i32) -> i32 {ident::<i32>}, val: Value(<ZST>) } + } + + bb1: { + return; // scope 0 at $DIR/terminators.rs:+7:13: +7:21 + } +} diff --git a/src/test/mir-opt/building/custom/terminators.drop_first.built.after.mir b/src/test/mir-opt/building/custom/terminators.drop_first.built.after.mir new file mode 100644 index 00000000000..c903e594696 --- /dev/null +++ b/src/test/mir-opt/building/custom/terminators.drop_first.built.after.mir @@ -0,0 +1,13 @@ +// MIR for `drop_first` after built + +fn drop_first(_1: WriteOnDrop<'_>, _2: WriteOnDrop<'_>) -> () { + let mut _0: (); // return place in scope 0 at $DIR/terminators.rs:+0:59: +0:59 + + bb0: { + replace(_1 <- move _2) -> bb1; // scope 0 at $DIR/terminators.rs:+3:13: +3:49 + } + + bb1: { + return; // scope 0 at $DIR/terminators.rs:+7:13: +7:21 + } +} diff --git a/src/test/mir-opt/building/custom/terminators.drop_second.built.after.mir b/src/test/mir-opt/building/custom/terminators.drop_second.built.after.mir new file mode 100644 index 00000000000..f14246f2d12 --- /dev/null +++ b/src/test/mir-opt/building/custom/terminators.drop_second.built.after.mir @@ -0,0 +1,13 @@ +// MIR for `drop_second` after built + +fn drop_second(_1: WriteOnDrop<'_>, _2: WriteOnDrop<'_>) -> () { + let mut _0: (); // return place in scope 0 at $DIR/terminators.rs:+0:60: +0:60 + + bb0: { + drop(_2) -> bb1; // scope 0 at $DIR/terminators.rs:+3:13: +3:30 + } + + bb1: { + return; // scope 0 at $DIR/terminators.rs:+7:13: +7:21 + } +} diff --git a/src/test/mir-opt/building/custom/terminators.indirect_call.built.after.mir b/src/test/mir-opt/building/custom/terminators.indirect_call.built.after.mir new file mode 100644 index 00000000000..2f1b14069ab --- /dev/null +++ b/src/test/mir-opt/building/custom/terminators.indirect_call.built.after.mir @@ -0,0 +1,13 @@ +// MIR for `indirect_call` after built + +fn indirect_call(_1: i32, _2: fn(i32) -> i32) -> i32 { + let mut _0: i32; // return place in scope 0 at $DIR/terminators.rs:+0:48: +0:51 + + bb0: { + _0 = _2(_1) -> bb1; // scope 0 at $DIR/terminators.rs:+3:13: +3:38 + } + + bb1: { + return; // scope 0 at $DIR/terminators.rs:+7:13: +7:21 + } +} diff --git a/src/test/mir-opt/building/custom/terminators.rs b/src/test/mir-opt/building/custom/terminators.rs new file mode 100644 index 00000000000..c23233fcf9a --- /dev/null +++ b/src/test/mir-opt/building/custom/terminators.rs @@ -0,0 +1,108 @@ +#![feature(custom_mir, core_intrinsics)] + +extern crate core; +use core::intrinsics::mir::*; + +fn ident<T>(t: T) -> T { + t +} + +// EMIT_MIR terminators.direct_call.built.after.mir +#[custom_mir(dialect = "built")] +fn direct_call(x: i32) -> i32 { + mir!( + { + Call(RET, retblock, ident(x)) + } + + retblock = { + Return() + } + ) +} + +// EMIT_MIR terminators.indirect_call.built.after.mir +#[custom_mir(dialect = "built")] +fn indirect_call(x: i32, f: fn(i32) -> i32) -> i32 { + mir!( + { + Call(RET, retblock, f(x)) + } + + retblock = { + Return() + } + ) +} + +struct WriteOnDrop<'a>(&'a mut i32, i32); + +impl<'a> Drop for WriteOnDrop<'a> { + fn drop(&mut self) { + *self.0 = self.1; + } +} + +// EMIT_MIR terminators.drop_first.built.after.mir +#[custom_mir(dialect = "built")] +fn drop_first<'a>(a: WriteOnDrop<'a>, b: WriteOnDrop<'a>) { + mir!( + { + DropAndReplace(a, Move(b), retblock) + } + + retblock = { + Return() + } + ) +} + +// EMIT_MIR terminators.drop_second.built.after.mir +#[custom_mir(dialect = "built")] +fn drop_second<'a>(a: WriteOnDrop<'a>, b: WriteOnDrop<'a>) { + mir!( + { + Drop(b, retblock) + } + + retblock = { + Return() + } + ) +} + +// EMIT_MIR terminators.assert_nonzero.built.after.mir +#[custom_mir(dialect = "built")] +fn assert_nonzero(a: i32) { + mir!( + { + match a { + 0 => unreachable, + _ => retblock + } + } + + unreachable = { + Unreachable() + } + + retblock = { + Return() + } + ) +} + +fn main() { + assert_eq!(direct_call(5), 5); + assert_eq!(indirect_call(5, ident), 5); + + let mut a = 0; + let mut b = 0; + drop_first(WriteOnDrop(&mut a, 1), WriteOnDrop(&mut b, 1)); + assert_eq!((a, b), (1, 0)); + + let mut a = 0; + let mut b = 0; + drop_second(WriteOnDrop(&mut a, 1), WriteOnDrop(&mut b, 1)); + assert_eq!((a, b), (0, 1)); +} diff --git a/src/test/run-make-fulldeps/core-no-fp-fmt-parse/Makefile b/src/test/run-make-fulldeps/core-no-fp-fmt-parse/Makefile index d083aaa6620..ec05ebea555 100644 --- a/src/test/run-make-fulldeps/core-no-fp-fmt-parse/Makefile +++ b/src/test/run-make-fulldeps/core-no-fp-fmt-parse/Makefile @@ -1,4 +1,4 @@ include ../tools.mk all: - $(RUSTC) --edition=2021 --crate-type=rlib ../../../../library/core/src/lib.rs --cfg no_fp_fmt_parse + $(RUSTC) --edition=2021 -Dwarnings --crate-type=rlib ../../../../library/core/src/lib.rs --cfg no_fp_fmt_parse diff --git a/src/test/rustdoc-gui/code-sidebar-toggle.goml b/src/test/rustdoc-gui/code-sidebar-toggle.goml index 00a0ea1e1a2..df665bd46c0 100644 --- a/src/test/rustdoc-gui/code-sidebar-toggle.goml +++ b/src/test/rustdoc-gui/code-sidebar-toggle.goml @@ -1,7 +1,7 @@ // This test checks that the source code pages sidebar toggle is working as expected. goto: "file://" + |DOC_PATH| + "/test_docs/index.html" click: ".srclink" -wait-for: "#sidebar-toggle" -click: "#sidebar-toggle" +wait-for: "#src-sidebar-toggle" +click: "#src-sidebar-toggle" fail: true assert-css: ("#source-sidebar", { "left": "-300px" }) diff --git a/src/test/rustdoc-gui/codeblock-tooltip.goml b/src/test/rustdoc-gui/codeblock-tooltip.goml index 4d923be3e78..aab27394eb1 100644 --- a/src/test/rustdoc-gui/codeblock-tooltip.goml +++ b/src/test/rustdoc-gui/codeblock-tooltip.goml @@ -20,7 +20,7 @@ define-function: ( {"border-left": "2px solid rgba(255, 0, 0, 0.5)"}, )), - ("move-cursor-to", ".docblock .example-wrap.compile_fail"), + ("move-cursor-to", ".docblock .example-wrap.compile_fail .tooltip"), ("assert-css", ( ".docblock .example-wrap.compile_fail .tooltip", @@ -60,7 +60,7 @@ define-function: ( {"border-left": "2px solid rgba(255, 0, 0, 0.5)"}, )), - ("move-cursor-to", ".docblock .example-wrap.should_panic"), + ("move-cursor-to", ".docblock .example-wrap.should_panic .tooltip"), ("assert-css", ( ".docblock .example-wrap.should_panic .tooltip", @@ -100,7 +100,7 @@ define-function: ( {"border-left": "2px solid rgba(255, 142, 0, 0.6)"}, )), - ("move-cursor-to", ".docblock .example-wrap.ignore"), + ("move-cursor-to", ".docblock .example-wrap.ignore .tooltip"), ("assert-css", ( ".docblock .example-wrap.ignore .tooltip", diff --git a/src/test/rustdoc-gui/cursor.goml b/src/test/rustdoc-gui/cursor.goml index b2e91cb81fb..cb6716a76f5 100644 --- a/src/test/rustdoc-gui/cursor.goml +++ b/src/test/rustdoc-gui/cursor.goml @@ -21,4 +21,4 @@ assert-css: (".sidebar-menu-toggle", {"cursor": "pointer"}) // the sidebar toggle button on the source code pages goto: "file://" + |DOC_PATH| + "/src/lib2/lib.rs.html" -assert-css: ("#sidebar-toggle > button", {"cursor": "pointer"}) +assert-css: ("#src-sidebar-toggle > button", {"cursor": "pointer"}) diff --git a/src/test/rustdoc-gui/docblock-big-code-mobile.goml b/src/test/rustdoc-gui/docblock-big-code-mobile.goml index 9f8df44d762..3ce921c2c91 100644 --- a/src/test/rustdoc-gui/docblock-big-code-mobile.goml +++ b/src/test/rustdoc-gui/docblock-big-code-mobile.goml @@ -7,3 +7,7 @@ show-text: true // We need to enable text draw to be able to have the "real" siz // Little explanations for this test: if the text wasn't displayed on two lines, it would take // around 20px (which is the font size). assert-property: (".docblock p > code", {"offsetHeight": "44"}) + +// Same check, but where the long code block is also a link +goto: "file://" + |DOC_PATH| + "/test_docs/long_code_block_link/index.html" +assert-property: (".docblock p > a > code", {"offsetHeight": "44"}) diff --git a/src/test/rustdoc-gui/docblock-code-block-line-number.goml b/src/test/rustdoc-gui/docblock-code-block-line-number.goml index fec21ad35c3..b094c483876 100644 --- a/src/test/rustdoc-gui/docblock-code-block-line-number.goml +++ b/src/test/rustdoc-gui/docblock-code-block-line-number.goml @@ -33,7 +33,9 @@ assert-css: ("#settings", {"display": "block"}) click: "input#line-numbers" wait-for: 100 // wait-for-false does not exist assert-false: "pre.example-line-numbers" +assert-local-storage: {"rustdoc-line-numbers": "false" } // Finally, turn it on again. click: "input#line-numbers" wait-for: "pre.example-line-numbers" +assert-local-storage: {"rustdoc-line-numbers": "true" } diff --git a/src/test/rustdoc-gui/help-page.goml b/src/test/rustdoc-gui/help-page.goml index 799ba851c92..80203901ed3 100644 --- a/src/test/rustdoc-gui/help-page.goml +++ b/src/test/rustdoc-gui/help-page.goml @@ -27,7 +27,6 @@ define-function: ( "color": |color|, "background-color": |background|, "box-shadow": |box_shadow| + " 0px -1px 0px 0px inset", - "cursor": "default", }, ALL)), ], ) diff --git a/src/test/rustdoc-gui/impl-doc.goml b/src/test/rustdoc-gui/impl-doc.goml new file mode 100644 index 00000000000..7322032b3f5 --- /dev/null +++ b/src/test/rustdoc-gui/impl-doc.goml @@ -0,0 +1,9 @@ +// A docblock on an impl must have a margin to separate it from the contents. +goto: "file://" + |DOC_PATH| + "/test_docs/struct.TypeWithImplDoc.html" + +// The text is about 24px tall, so if there's a margin, then their position will be >24px apart +compare-elements-position-near-false: ( + "#implementations-list > .implementors-toggle > .docblock > p", + "#implementations-list > .implementors-toggle > .impl-items", + {"y": 24} +) diff --git a/src/test/rustdoc-gui/sidebar-source-code-display.goml b/src/test/rustdoc-gui/sidebar-source-code-display.goml index 40ae4af81be..df4506e1119 100644 --- a/src/test/rustdoc-gui/sidebar-source-code-display.goml +++ b/src/test/rustdoc-gui/sidebar-source-code-display.goml @@ -2,18 +2,18 @@ javascript: false goto: "file://" + |DOC_PATH| + "/src/test_docs/lib.rs.html" // Since the javascript is disabled, there shouldn't be a toggle. -assert-false: "#sidebar-toggle" +assert-false: "#src-sidebar-toggle" wait-for-css: (".sidebar", {"display": "none"}) // Let's retry with javascript enabled. javascript: true reload: -wait-for: "#sidebar-toggle" -assert-css: ("#sidebar-toggle", {"visibility": "visible"}) -assert-css: (".sidebar > *:not(#sidebar-toggle)", {"visibility": "hidden"}) +wait-for: "#src-sidebar-toggle" +assert-css: ("#src-sidebar-toggle", {"visibility": "visible"}) +assert-css: (".sidebar > *:not(#src-sidebar-toggle)", {"visibility": "hidden"}) // Let's expand the sidebar now. -click: "#sidebar-toggle" -wait-for-css: ("#sidebar-toggle", {"visibility": "visible"}) +click: "#src-sidebar-toggle" +wait-for-css: ("#src-sidebar-toggle", {"visibility": "visible"}) // We now check that opening the sidebar and clicking a link will leave it open. // The behavior here on desktop is different than the behavior on mobile, @@ -38,25 +38,25 @@ define-function: ( [ ("local-storage", {"rustdoc-theme": |theme|, "rustdoc-use-system-theme": "false"}), ("reload"), - ("wait-for-css", ("#sidebar-toggle", {"visibility": "visible"})), + ("wait-for-css", ("#src-sidebar-toggle", {"visibility": "visible"})), ("assert-css", ( "#source-sidebar details[open] > .files a.selected", {"color": |color_hover|, "background-color": |background|}, )), // Without hover or focus. - ("assert-css", ("#sidebar-toggle > button", {"background-color": |background_toggle|})), + ("assert-css", ("#src-sidebar-toggle > button", {"background-color": |background_toggle|})), // With focus. - ("focus", "#sidebar-toggle > button"), + ("focus", "#src-sidebar-toggle > button"), ("assert-css", ( - "#sidebar-toggle > button:focus", + "#src-sidebar-toggle > button:focus", {"background-color": |background_toggle_hover|}, )), ("focus", ".search-input"), // With hover. - ("move-cursor-to", "#sidebar-toggle > button"), + ("move-cursor-to", "#src-sidebar-toggle > button"), ("assert-css", ( - "#sidebar-toggle > button:hover", + "#src-sidebar-toggle > button:hover", {"background-color": |background_toggle_hover|}, )), @@ -151,16 +151,16 @@ call-function: ("check-colors", { size: (500, 700) reload: // Waiting for the sidebar to be displayed... -wait-for-css: ("#sidebar-toggle", {"visibility": "visible"}) +wait-for-css: ("#src-sidebar-toggle", {"visibility": "visible"}) // We now check it takes the full size of the display. assert-property: ("body", {"clientWidth": "500", "clientHeight": "700"}) assert-property: (".sidebar", {"clientWidth": "500", "clientHeight": "700"}) // We now check the display of the toggle once the sidebar is expanded. -assert-property: ("#sidebar-toggle", {"clientWidth": "500", "clientHeight": "39"}) +assert-property: ("#src-sidebar-toggle", {"clientWidth": "500", "clientHeight": "39"}) assert-css: ( - "#sidebar-toggle", + "#src-sidebar-toggle", { "border-top-width": "0px", "border-right-width": "0px", @@ -170,28 +170,28 @@ assert-css: ( ) // We now check that the scroll position is kept when opening the sidebar. -click: "#sidebar-toggle" +click: "#src-sidebar-toggle" wait-for-css: (".sidebar", {"width": "0px"}) // We scroll to line 117 to change the scroll position. scroll-to: '//*[@id="117"]' assert-window-property: {"pageYOffset": "2542"} // Expanding the sidebar... -click: "#sidebar-toggle" +click: "#src-sidebar-toggle" wait-for-css: (".sidebar", {"width": "500px"}) -click: "#sidebar-toggle" +click: "#src-sidebar-toggle" wait-for-css: (".sidebar", {"width": "0px"}) // The "scrollTop" property should be the same. assert-window-property: {"pageYOffset": "2542"} // We now check that the scroll position is restored if the window is resized. size: (500, 700) -click: "#sidebar-toggle" +click: "#src-sidebar-toggle" wait-for-css: ("#source-sidebar", {"visibility": "visible"}) assert-window-property: {"pageYOffset": "0"} size: (900, 900) assert-window-property: {"pageYOffset": "2542"} size: (500, 700) -click: "#sidebar-toggle" +click: "#src-sidebar-toggle" wait-for-css: ("#source-sidebar", {"visibility": "hidden"}) // We now check that opening the sidebar and clicking a link will close it. @@ -199,7 +199,7 @@ wait-for-css: ("#source-sidebar", {"visibility": "hidden"}) // but common sense dictates that if you have a list of files that fills the entire screen, and // you click one of them, you probably want to actually see the file's contents, and not just // make it the current selection. -click: "#sidebar-toggle" +click: "#src-sidebar-toggle" wait-for-css: ("#source-sidebar", {"visibility": "visible"}) assert-local-storage: {"rustdoc-source-sidebar-show": "true"} click: ".sidebar a.selected" @@ -210,6 +210,6 @@ assert-local-storage: {"rustdoc-source-sidebar-show": "false"} size: (1000, 1000) wait-for-css: ("#source-sidebar", {"visibility": "hidden"}) assert-local-storage: {"rustdoc-source-sidebar-show": "false"} -click: "#sidebar-toggle" +click: "#src-sidebar-toggle" wait-for-css: ("#source-sidebar", {"visibility": "visible"}) assert-local-storage: {"rustdoc-source-sidebar-show": "true"} diff --git a/src/test/rustdoc-gui/source-code-page.goml b/src/test/rustdoc-gui/source-code-page.goml index b3b837ad377..25da74e5173 100644 --- a/src/test/rustdoc-gui/source-code-page.goml +++ b/src/test/rustdoc-gui/source-code-page.goml @@ -97,7 +97,7 @@ assert-document-property: ({"URL": "/lib.rs.html"}, ENDS_WITH) // Checking the source code sidebar. // First we "open" it. -click: "#sidebar-toggle" +click: "#src-sidebar-toggle" assert: ".source-sidebar-expanded" // We check that the first entry of the sidebar is collapsed diff --git a/src/test/rustdoc-gui/src/test_docs/lib.rs b/src/test/rustdoc-gui/src/test_docs/lib.rs index d6eeab803df..f1b69d4dc1d 100644 --- a/src/test/rustdoc-gui/src/test_docs/lib.rs +++ b/src/test/rustdoc-gui/src/test_docs/lib.rs @@ -154,6 +154,11 @@ pub mod huge_amount_of_consts { /// Very long code text `hereIgoWithLongTextBecauseWhyNotAndWhyWouldntI`. pub mod long_code_block {} +/// Very long code text [`hereIgoWithLongTextBecauseWhyNotAndWhyWouldntI`][lnk]. +/// +/// [lnk]: crate::long_code_block_link +pub mod long_code_block_link {} + #[macro_export] macro_rules! repro { () => {}; @@ -442,3 +447,11 @@ pub mod trait_members { fn function2() {} } } + +pub struct TypeWithImplDoc; + +/// impl doc +impl TypeWithImplDoc { + /// fn doc + pub fn test_fn() {} +} diff --git a/src/test/rustdoc-ui/z-help.stdout b/src/test/rustdoc-ui/z-help.stdout index 94cf7b94241..3537e669608 100644 --- a/src/test/rustdoc-ui/z-help.stdout +++ b/src/test/rustdoc-ui/z-help.stdout @@ -35,6 +35,7 @@ -Z dump-mir-exclude-pass-number=val -- exclude the pass number when dumping MIR (used in tests) (default: no) -Z dump-mir-graphviz=val -- in addition to `.mir` files, create graphviz `.dot` files (and with `-Z instrument-coverage`, also create a `.dot` file for the MIR-derived coverage graph) (default: no) -Z dump-mir-spanview=val -- in addition to `.mir` files, create `.html` files to view spans for all `statement`s (including terminators), only `terminator` spans, or computed `block` spans (one span encompassing a block's terminator and all statements). If `-Z instrument-coverage` is also enabled, create an additional `.html` file showing the computed coverage spans. + -Z dump-mono-stats=val -- output statistics about monomorphization collection (format: markdown) -Z dwarf-version=val -- version of DWARF debug information to emit (default: 2 or 4, depending on platform) -Z dylib-lto=val -- enables LTO for dylib crate type -Z emit-stack-sizes=val -- emit a section containing stack size metadata (default: no) diff --git a/src/test/rustdoc/read-more-unneeded.rs b/src/test/rustdoc/read-more-unneeded.rs new file mode 100644 index 00000000000..0303e444261 --- /dev/null +++ b/src/test/rustdoc/read-more-unneeded.rs @@ -0,0 +1,34 @@ +// Regression test for https://github.com/rust-lang/rust/issues/105677. +// This test ensures that the "Read more" link is only generated when +// there is actually more documentation to read after the short summary. + +#![crate_name = "foo"] + +pub trait MyFrom { + /// # Hello + /// ## Yolo + /// more! + fn try_from1(); + /// a + /// b + /// c + fn try_from2(); + /// a + /// + /// b + /// + /// c + fn try_from3(); +} + +pub struct NonZero; + +// @has 'foo/struct.NonZero.html' +impl MyFrom for NonZero { + // @matches - '//*[@class="docblock"]' '^Hello Read more$' + fn try_from1() {} + // @matches - '//*[@class="docblock"]' '^a\sb\sc$' + fn try_from2() {} + // @matches - '//*[@class="docblock"]' '^a Read more$' + fn try_from3() {} +} diff --git a/src/test/rustdoc/toggle-trait-fn.rs b/src/test/rustdoc/toggle-trait-fn.rs index e41422ce7c5..0a1f088b9ab 100644 --- a/src/test/rustdoc/toggle-trait-fn.rs +++ b/src/test/rustdoc/toggle-trait-fn.rs @@ -4,6 +4,8 @@ // summary. Trait methods with no documentation should not be wrapped. // // @has foo/trait.Foo.html +// @has - '//details[@class="rustdoc-toggle"]//summary//h4[@class="code-header"]' 'type Item' +// @!has - '//details[@class="rustdoc-toggle"]//summary//h4[@class="code-header"]' 'type Item2' // @has - '//details[@class="rustdoc-toggle method-toggle"]//summary//h4[@class="code-header"]' 'is_documented()' // @!has - '//details[@class="rustdoc-toggle method-toggle"]//summary//h4[@class="code-header"]' 'not_documented()' // @has - '//details[@class="rustdoc-toggle method-toggle"]//*[@class="docblock"]' 'is_documented is documented' @@ -11,6 +13,11 @@ // @!has - '//details[@class="rustdoc-toggle method-toggle"]//summary//h4[@class="code-header"]' 'not_documented_optional()' // @has - '//details[@class="rustdoc-toggle method-toggle"]//*[@class="docblock"]' 'is_documented_optional is documented' pub trait Foo { + /// is documented + type Item; + + type Item2; + fn not_documented(); /// is_documented is documented diff --git a/src/test/rustdoc/trait-impl.rs b/src/test/rustdoc/trait-impl.rs index 195cdf009b9..9cf3226f738 100644 --- a/src/test/rustdoc/trait-impl.rs +++ b/src/test/rustdoc/trait-impl.rs @@ -30,8 +30,6 @@ impl Trait for Struct { // @has - '//*[@id="method.b"]/../../div[@class="docblock"]' 'These docs contain' // @has - '//*[@id="method.b"]/../../div[@class="docblock"]/a' 'reference link' // @has - '//*[@id="method.b"]/../../div[@class="docblock"]/a/@href' 'https://example.com' - // @has - '//*[@id="method.b"]/../../div[@class="docblock"]/a' 'Read more' - // @has - '//*[@id="method.b"]/../../div[@class="docblock"]/a/@href' 'trait.Trait.html#tymethod.b' fn b() {} // @!has - '//*[@id="method.c"]/../../div[@class="docblock"]' 'code block' diff --git a/src/test/ui-fulldeps/internal-lints/ty_tykind_usage.rs b/src/test/ui-fulldeps/internal-lints/ty_tykind_usage.rs index 2cb1ed6fcb7..3f7429a5fcc 100644 --- a/src/test/ui-fulldeps/internal-lints/ty_tykind_usage.rs +++ b/src/test/ui-fulldeps/internal-lints/ty_tykind_usage.rs @@ -33,8 +33,7 @@ fn main() { TyKind::GeneratorWitness(..) => (), //~ ERROR usage of `ty::TyKind::<kind>` TyKind::Never => (), //~ ERROR usage of `ty::TyKind::<kind>` TyKind::Tuple(..) => (), //~ ERROR usage of `ty::TyKind::<kind>` - TyKind::Projection(..) => (), //~ ERROR usage of `ty::TyKind::<kind>` - TyKind::Opaque(..) => (), //~ ERROR usage of `ty::TyKind::<kind>` + TyKind::Alias(..) => (), //~ ERROR usage of `ty::TyKind::<kind>` TyKind::Param(..) => (), //~ ERROR usage of `ty::TyKind::<kind>` TyKind::Bound(..) => (), //~ ERROR usage of `ty::TyKind::<kind>` TyKind::Placeholder(..) => (), //~ ERROR usage of `ty::TyKind::<kind>` diff --git a/src/test/ui-fulldeps/internal-lints/ty_tykind_usage.stderr b/src/test/ui-fulldeps/internal-lints/ty_tykind_usage.stderr index 171f49087d6..1f49d6b6464 100644 --- a/src/test/ui-fulldeps/internal-lints/ty_tykind_usage.stderr +++ b/src/test/ui-fulldeps/internal-lints/ty_tykind_usage.stderr @@ -133,53 +133,47 @@ LL | TyKind::Tuple(..) => (), error: usage of `ty::TyKind::<kind>` --> $DIR/ty_tykind_usage.rs:36:9 | -LL | TyKind::Projection(..) => (), +LL | TyKind::Alias(..) => (), | ^^^^^^ help: try using `ty::<kind>` directly: `ty` error: usage of `ty::TyKind::<kind>` --> $DIR/ty_tykind_usage.rs:37:9 | -LL | TyKind::Opaque(..) => (), - | ^^^^^^ help: try using `ty::<kind>` directly: `ty` - -error: usage of `ty::TyKind::<kind>` - --> $DIR/ty_tykind_usage.rs:38:9 - | LL | TyKind::Param(..) => (), | ^^^^^^ help: try using `ty::<kind>` directly: `ty` error: usage of `ty::TyKind::<kind>` - --> $DIR/ty_tykind_usage.rs:39:9 + --> $DIR/ty_tykind_usage.rs:38:9 | LL | TyKind::Bound(..) => (), | ^^^^^^ help: try using `ty::<kind>` directly: `ty` error: usage of `ty::TyKind::<kind>` - --> $DIR/ty_tykind_usage.rs:40:9 + --> $DIR/ty_tykind_usage.rs:39:9 | LL | TyKind::Placeholder(..) => (), | ^^^^^^ help: try using `ty::<kind>` directly: `ty` error: usage of `ty::TyKind::<kind>` - --> $DIR/ty_tykind_usage.rs:41:9 + --> $DIR/ty_tykind_usage.rs:40:9 | LL | TyKind::Infer(..) => (), | ^^^^^^ help: try using `ty::<kind>` directly: `ty` error: usage of `ty::TyKind::<kind>` - --> $DIR/ty_tykind_usage.rs:42:9 + --> $DIR/ty_tykind_usage.rs:41:9 | LL | TyKind::Error(_) => (), | ^^^^^^ help: try using `ty::<kind>` directly: `ty` error: usage of `ty::TyKind::<kind>` - --> $DIR/ty_tykind_usage.rs:47:12 + --> $DIR/ty_tykind_usage.rs:46:12 | LL | if let TyKind::Int(int_ty) = kind {} | ^^^^^^ help: try using `ty::<kind>` directly: `ty` error: usage of `ty::TyKind` - --> $DIR/ty_tykind_usage.rs:49:24 + --> $DIR/ty_tykind_usage.rs:48:24 | LL | fn ty_kind(ty_bad: TyKind<'_>, ty_good: Ty<'_>) {} | ^^^^^^^^^^ @@ -187,7 +181,7 @@ LL | fn ty_kind(ty_bad: TyKind<'_>, ty_good: Ty<'_>) {} = help: try using `Ty` instead error: usage of `ty::TyKind` - --> $DIR/ty_tykind_usage.rs:51:37 + --> $DIR/ty_tykind_usage.rs:50:37 | LL | fn ir_ty_kind<I: Interner>(bad: IrTyKind<I>) -> IrTyKind<I> { | ^^^^^^^^^^^ @@ -195,7 +189,7 @@ LL | fn ir_ty_kind<I: Interner>(bad: IrTyKind<I>) -> IrTyKind<I> { = help: try using `Ty` instead error: usage of `ty::TyKind` - --> $DIR/ty_tykind_usage.rs:51:53 + --> $DIR/ty_tykind_usage.rs:50:53 | LL | fn ir_ty_kind<I: Interner>(bad: IrTyKind<I>) -> IrTyKind<I> { | ^^^^^^^^^^^ @@ -203,12 +197,12 @@ LL | fn ir_ty_kind<I: Interner>(bad: IrTyKind<I>) -> IrTyKind<I> { = help: try using `Ty` instead error: usage of `ty::TyKind::<kind>` - --> $DIR/ty_tykind_usage.rs:54:9 + --> $DIR/ty_tykind_usage.rs:53:9 | LL | IrTyKind::Bool | --------^^^^^^ | | | help: try using `ty::<kind>` directly: `ty` -error: aborting due to 33 previous errors +error: aborting due to 32 previous errors diff --git a/src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.rs b/src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.rs index cb4cd466590..c19b639a8d5 100644 --- a/src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.rs +++ b/src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.rs @@ -683,7 +683,7 @@ struct RawIdentDiagnosticArg { #[diag(compiletest_example)] struct SubdiagnosticBad { #[subdiagnostic(bad)] - //~^ ERROR `#[subdiagnostic(bad)]` is not a valid attribute + //~^ ERROR `#[subdiagnostic(...)]` is not a valid attribute note: Note, } @@ -707,7 +707,7 @@ struct SubdiagnosticBadTwice { #[diag(compiletest_example)] struct SubdiagnosticBadLitStr { #[subdiagnostic("bad")] - //~^ ERROR `#[subdiagnostic("...")]` is not a valid attribute + //~^ ERROR `#[subdiagnostic(...)]` is not a valid attribute note: Note, } @@ -723,6 +723,7 @@ struct SubdiagnosticEagerLint { #[diag(compiletest_example)] struct SubdiagnosticEagerCorrect { #[subdiagnostic(eager)] + //~^ ERROR `#[subdiagnostic(...)]` is not a valid attribute note: Note, } @@ -743,6 +744,7 @@ pub(crate) struct SubdiagnosticWithSuggestion { #[diag(compiletest_example)] struct SubdiagnosticEagerSuggestion { #[subdiagnostic(eager)] + //~^ ERROR `#[subdiagnostic(...)]` is not a valid attribute sub: SubdiagnosticWithSuggestion, } diff --git a/src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr b/src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr index b4c211db47c..f39d32a221c 100644 --- a/src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr +++ b/src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr @@ -533,21 +533,19 @@ LL | #[label] | = help: `#[label]` and `#[suggestion]` can only be applied to fields -error: `#[subdiagnostic(bad)]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:685:21 +error: `#[subdiagnostic(...)]` is not a valid attribute + --> $DIR/diagnostic-derive.rs:685:5 | LL | #[subdiagnostic(bad)] - | ^^^ + | ^^^^^^^^^^^^^^^^^^^^^ | - = help: `eager` is the only supported nested attribute for `subdiagnostic` + = help: `subdiagnostic` does not support nested attributes error: `#[subdiagnostic = ...]` is not a valid attribute --> $DIR/diagnostic-derive.rs:693:5 | LL | #[subdiagnostic = "bad"] | ^^^^^^^^^^^^^^^^^^^^^^^^ - | - = help: `eager` is the only supported nested attribute for `subdiagnostic` error: `#[subdiagnostic(...)]` is not a valid attribute --> $DIR/diagnostic-derive.rs:701:5 @@ -555,15 +553,15 @@ error: `#[subdiagnostic(...)]` is not a valid attribute LL | #[subdiagnostic(bad, bad)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = help: `eager` is the only supported nested attribute for `subdiagnostic` + = help: `subdiagnostic` does not support nested attributes -error: `#[subdiagnostic("...")]` is not a valid attribute - --> $DIR/diagnostic-derive.rs:709:21 +error: `#[subdiagnostic(...)]` is not a valid attribute + --> $DIR/diagnostic-derive.rs:709:5 | LL | #[subdiagnostic("bad")] - | ^^^^^ + | ^^^^^^^^^^^^^^^^^^^^^^^ | - = help: `eager` is the only supported nested attribute for `subdiagnostic` + = help: `subdiagnostic` does not support nested attributes error: `#[subdiagnostic(...)]` is not a valid attribute --> $DIR/diagnostic-derive.rs:717:5 @@ -571,22 +569,38 @@ error: `#[subdiagnostic(...)]` is not a valid attribute LL | #[subdiagnostic(eager)] | ^^^^^^^^^^^^^^^^^^^^^^^ | - = help: eager subdiagnostics are not supported on lints + = help: `subdiagnostic` does not support nested attributes + +error: `#[subdiagnostic(...)]` is not a valid attribute + --> $DIR/diagnostic-derive.rs:725:5 + | +LL | #[subdiagnostic(eager)] + | ^^^^^^^^^^^^^^^^^^^^^^^ + | + = help: `subdiagnostic` does not support nested attributes + +error: `#[subdiagnostic(...)]` is not a valid attribute + --> $DIR/diagnostic-derive.rs:746:5 + | +LL | #[subdiagnostic(eager)] + | ^^^^^^^^^^^^^^^^^^^^^^^ + | + = help: `subdiagnostic` does not support nested attributes error: expected at least one string literal for `code(...)` - --> $DIR/diagnostic-derive.rs:775:18 + --> $DIR/diagnostic-derive.rs:777:18 | LL | #[suggestion(code())] | ^^^^^^ error: `code(...)` must contain only string literals - --> $DIR/diagnostic-derive.rs:783:23 + --> $DIR/diagnostic-derive.rs:785:23 | LL | #[suggestion(code(foo))] | ^^^ error: `code = "..."`/`code(...)` must contain only string literals - --> $DIR/diagnostic-derive.rs:791:18 + --> $DIR/diagnostic-derive.rs:793:18 | LL | #[suggestion(code = 3)] | ^^^^^^^^ @@ -660,12 +674,9 @@ LL | #[derive(Diagnostic)] = help: normalized in stderr note: required by a bound in `DiagnosticBuilder::<'a, G>::set_arg` --> $COMPILER_DIR/rustc_errors/src/diagnostic_builder.rs:LL:CC - | -LL | arg: impl IntoDiagnosticArg, - | ^^^^^^^^^^^^^^^^^ required by this bound in `DiagnosticBuilder::<'a, G>::set_arg` - = note: this error originates in the derive macro `Diagnostic` (in Nightly builds, run with -Z macro-backtrace for more info) + = note: this error originates in the derive macro `Diagnostic` which comes from the expansion of the macro `forward` (in Nightly builds, run with -Z macro-backtrace for more info) -error: aborting due to 83 previous errors +error: aborting due to 85 previous errors Some errors have detailed explanations: E0277, E0425. For more information about an error, try `rustc --explain E0277`. diff --git a/src/test/ui/alloc-error/alloc-error-handler-bad-signature-2.stderr b/src/test/ui/alloc-error/alloc-error-handler-bad-signature-2.stderr index adb652fe616..2673ee9f937 100644 --- a/src/test/ui/alloc-error/alloc-error-handler-bad-signature-2.stderr +++ b/src/test/ui/alloc-error/alloc-error-handler-bad-signature-2.stderr @@ -17,9 +17,6 @@ LL | | } = note: struct `core::alloc::Layout` and struct `Layout` have similar names, but are actually distinct types note: struct `core::alloc::Layout` is defined in crate `core` --> $SRC_DIR/core/src/alloc/layout.rs:LL:COL - | -LL | pub struct Layout { - | ^^^^^^^^^^^^^^^^^ note: struct `Layout` is defined in the current crate --> $DIR/alloc-error-handler-bad-signature-2.rs:7:1 | diff --git a/src/test/ui/allocator/no_std-alloc-error-handler-custom.rs b/src/test/ui/allocator/no_std-alloc-error-handler-custom.rs index 851da231a73..28926243390 100644 --- a/src/test/ui/allocator/no_std-alloc-error-handler-custom.rs +++ b/src/test/ui/allocator/no_std-alloc-error-handler-custom.rs @@ -7,9 +7,10 @@ // compile-flags:-C panic=abort // aux-build:helper.rs -#![feature(start, rustc_private, new_uninit, panic_info_message, lang_items)] +#![feature(rustc_private, lang_items)] #![feature(alloc_error_handler)] #![no_std] +#![no_main] extern crate alloc; extern crate libc; @@ -21,35 +22,30 @@ pub fn __aeabi_unwind_cpp_pr0() {} #[no_mangle] pub fn __aeabi_unwind_cpp_pr1() {} -use core::ptr::null_mut; -use core::alloc::{GlobalAlloc, Layout}; use alloc::boxed::Box; +use alloc::string::ToString; +use core::alloc::{GlobalAlloc, Layout}; +use core::ptr::null_mut; extern crate helper; struct MyAllocator; #[alloc_error_handler] -fn my_oom(layout: Layout) -> ! -{ +fn my_oom(layout: Layout) -> ! { use alloc::fmt::write; unsafe { let size = layout.size(); let mut s = alloc::string::String::new(); write(&mut s, format_args!("My OOM: failed to allocate {} bytes!\n", size)).unwrap(); - let s = s.as_str(); - libc::write(libc::STDERR_FILENO, s as *const _ as _, s.len()); + libc::write(libc::STDERR_FILENO, s.as_ptr() as *const _, s.len()); libc::exit(0) } } unsafe impl GlobalAlloc for MyAllocator { unsafe fn alloc(&self, layout: Layout) -> *mut u8 { - if layout.size() < 4096 { - libc::malloc(layout.size()) as _ - } else { - null_mut() - } + if layout.size() < 4096 { libc::malloc(layout.size()) as _ } else { null_mut() } } unsafe fn dealloc(&self, _ptr: *mut u8, _layout: Layout) {} } @@ -60,26 +56,12 @@ static A: MyAllocator = MyAllocator; #[panic_handler] fn panic(panic_info: &core::panic::PanicInfo) -> ! { unsafe { - if let Some(s) = panic_info.payload().downcast_ref::<&str>() { - const PSTR: &str = "panic occurred: "; - const CR: &str = "\n"; - libc::write(libc::STDERR_FILENO, PSTR as *const _ as _, PSTR.len()); - libc::write(libc::STDERR_FILENO, s as *const _ as _, s.len()); - libc::write(libc::STDERR_FILENO, CR as *const _ as _, CR.len()); - } - if let Some(args) = panic_info.message() { - let mut s = alloc::string::String::new(); - alloc::fmt::write(&mut s, *args).unwrap(); - let s = s.as_str(); - const PSTR: &str = "panic occurred: "; - const CR: &str = "\n"; - libc::write(libc::STDERR_FILENO, PSTR as *const _ as _, PSTR.len()); - libc::write(libc::STDERR_FILENO, s as *const _ as _, s.len()); - libc::write(libc::STDERR_FILENO, CR as *const _ as _, CR.len()); - } else { - const PSTR: &str = "panic occurred\n"; - libc::write(libc::STDERR_FILENO, PSTR as *const _ as _, PSTR.len()); - } + let s = panic_info.to_string(); + const PSTR: &str = "panic occurred: "; + const CR: &str = "\n"; + libc::write(libc::STDERR_FILENO, PSTR.as_ptr() as *const _, PSTR.len()); + libc::write(libc::STDERR_FILENO, s.as_ptr() as *const _, s.len()); + libc::write(libc::STDERR_FILENO, CR.as_ptr() as *const _, CR.len()); libc::exit(1) } } @@ -89,15 +71,14 @@ fn panic(panic_info: &core::panic::PanicInfo) -> ! { // in these libraries will refer to `rust_eh_personality` if LLVM can not *prove* the contents won't // unwind. So, for this test case we will define the symbol. #[lang = "eh_personality"] -extern fn rust_eh_personality() {} +extern "C" fn rust_eh_personality() {} -#[derive(Debug)] +#[derive(Default, Debug)] struct Page(#[allow(unused_tuple_struct_fields)] [[u64; 32]; 16]); -#[start] -pub fn main(_argc: isize, _argv: *const *const u8) -> isize { - let zero = Box::<Page>::new_zeroed(); - let zero = unsafe { zero.assume_init() }; +#[no_mangle] +fn main(_argc: i32, _argv: *const *const u8) -> isize { + let zero = Box::<Page>::new(Default::default()); helper::work_with(&zero); 1 } diff --git a/src/test/ui/allocator/no_std-alloc-error-handler-default.rs b/src/test/ui/allocator/no_std-alloc-error-handler-default.rs index 30ce0f162c7..56409e71339 100644 --- a/src/test/ui/allocator/no_std-alloc-error-handler-default.rs +++ b/src/test/ui/allocator/no_std-alloc-error-handler-default.rs @@ -6,11 +6,10 @@ // only-linux // compile-flags:-C panic=abort // aux-build:helper.rs -// gate-test-default_alloc_error_handler -#![feature(start, rustc_private, new_uninit, panic_info_message, lang_items)] -#![feature(default_alloc_error_handler)] +#![feature(rustc_private, lang_items)] #![no_std] +#![no_main] extern crate alloc; extern crate libc; @@ -23,6 +22,7 @@ pub fn __aeabi_unwind_cpp_pr0() {} pub fn __aeabi_unwind_cpp_pr1() {} use alloc::boxed::Box; +use alloc::string::ToString; use core::alloc::{GlobalAlloc, Layout}; use core::ptr::null_mut; @@ -32,11 +32,7 @@ struct MyAllocator; unsafe impl GlobalAlloc for MyAllocator { unsafe fn alloc(&self, layout: Layout) -> *mut u8 { - if layout.size() < 4096 { - libc::malloc(layout.size()) as _ - } else { - null_mut() - } + if layout.size() < 4096 { libc::malloc(layout.size()) as _ } else { null_mut() } } unsafe fn dealloc(&self, _ptr: *mut u8, _layout: Layout) {} } @@ -47,26 +43,12 @@ static A: MyAllocator = MyAllocator; #[panic_handler] fn panic(panic_info: &core::panic::PanicInfo) -> ! { unsafe { - if let Some(s) = panic_info.payload().downcast_ref::<&str>() { - const PSTR: &str = "panic occurred: "; - const CR: &str = "\n"; - libc::write(libc::STDERR_FILENO, PSTR as *const _ as _, PSTR.len()); - libc::write(libc::STDERR_FILENO, s as *const _ as _, s.len()); - libc::write(libc::STDERR_FILENO, CR as *const _ as _, CR.len()); - } - if let Some(args) = panic_info.message() { - let mut s = alloc::string::String::new(); - alloc::fmt::write(&mut s, *args).unwrap(); - let s = s.as_str(); - const PSTR: &str = "panic occurred: "; - const CR: &str = "\n"; - libc::write(libc::STDERR_FILENO, PSTR as *const _ as _, PSTR.len()); - libc::write(libc::STDERR_FILENO, s as *const _ as _, s.len()); - libc::write(libc::STDERR_FILENO, CR as *const _ as _, CR.len()); - } else { - const PSTR: &str = "panic occurred\n"; - libc::write(libc::STDERR_FILENO, PSTR as *const _ as _, PSTR.len()); - } + let s = panic_info.to_string(); + const PSTR: &str = "panic occurred: "; + const CR: &str = "\n"; + libc::write(libc::STDERR_FILENO, PSTR.as_ptr() as *const _, PSTR.len()); + libc::write(libc::STDERR_FILENO, s.as_ptr() as *const _, s.len()); + libc::write(libc::STDERR_FILENO, CR.as_ptr() as *const _, CR.len()); libc::exit(0) } } @@ -76,15 +58,14 @@ fn panic(panic_info: &core::panic::PanicInfo) -> ! { // in these libraries will refer to `rust_eh_personality` if LLVM can not *prove* the contents won't // unwind. So, for this test case we will define the symbol. #[lang = "eh_personality"] -extern fn rust_eh_personality() {} +extern "C" fn rust_eh_personality() {} -#[derive(Debug)] +#[derive(Default, Debug)] struct Page(#[allow(unused_tuple_struct_fields)] [[u64; 32]; 16]); -#[start] -pub fn main(_argc: isize, _argv: *const *const u8) -> isize { - let zero = Box::<Page>::new_zeroed(); - let zero = unsafe { zero.assume_init() }; +#[no_mangle] +fn main(_argc: i32, _argv: *const *const u8) -> isize { + let zero = Box::<Page>::new(Default::default()); helper::work_with(&zero); 1 } diff --git a/src/test/ui/anonymous-higher-ranked-lifetime.stderr b/src/test/ui/anonymous-higher-ranked-lifetime.stderr index bf5f642ca82..afb7f8fea92 100644 --- a/src/test/ui/anonymous-higher-ranked-lifetime.stderr +++ b/src/test/ui/anonymous-higher-ranked-lifetime.stderr @@ -13,6 +13,10 @@ note: required by a bound in `f1` | LL | fn f1<F>(_: F) where F: Fn(&(), &()) {} | ^^^^^^^^^^^^ required by this bound in `f1` +help: consider borrowing the argument + | +LL | f1(|_: &(), _: &()| {}); + | ~~~ ~~~ error[E0631]: type mismatch in closure arguments --> $DIR/anonymous-higher-ranked-lifetime.rs:3:5 @@ -29,6 +33,10 @@ note: required by a bound in `f2` | LL | fn f2<F>(_: F) where F: for<'a> Fn(&'a (), &()) {} | ^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `f2` +help: consider borrowing the argument + | +LL | f2(|_: &'a (), _: &()| {}); + | ~~~~~~ ~~~ error[E0631]: type mismatch in closure arguments --> $DIR/anonymous-higher-ranked-lifetime.rs:4:5 @@ -45,6 +53,10 @@ note: required by a bound in `f3` | LL | fn f3<'a, F>(_: F) where F: Fn(&'a (), &()) {} | ^^^^^^^^^^^^^^^ required by this bound in `f3` +help: consider borrowing the argument + | +LL | f3(|_: &(), _: &()| {}); + | ~~~ ~~~ error[E0631]: type mismatch in closure arguments --> $DIR/anonymous-higher-ranked-lifetime.rs:5:5 @@ -61,6 +73,10 @@ note: required by a bound in `f4` | LL | fn f4<F>(_: F) where F: for<'r> Fn(&(), &'r ()) {} | ^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `f4` +help: consider borrowing the argument + | +LL | f4(|_: &(), _: &'r ()| {}); + | ~~~ ~~~~~~ error[E0631]: type mismatch in closure arguments --> $DIR/anonymous-higher-ranked-lifetime.rs:6:5 @@ -77,13 +93,19 @@ note: required by a bound in `f5` | LL | fn f5<F>(_: F) where F: for<'r> Fn(&'r (), &'r ()) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `f5` +help: consider borrowing the argument + | +LL | f5(|_: &'r (), _: &'r ()| {}); + | ~~~~~~ ~~~~~~ error[E0631]: type mismatch in closure arguments --> $DIR/anonymous-higher-ranked-lifetime.rs:7:5 | LL | g1(|_: (), _: ()| {}); - | ^^ -------------- found signature defined here - | | + | ^^ -------------- + | | | | + | | | help: consider borrowing the argument: `&()` + | | found signature defined here | expected due to this | = note: expected closure signature `for<'a> fn(&'a (), Box<(dyn for<'a> Fn(&'a ()) + 'static)>) -> _` @@ -98,8 +120,10 @@ error[E0631]: type mismatch in closure arguments --> $DIR/anonymous-higher-ranked-lifetime.rs:8:5 | LL | g2(|_: (), _: ()| {}); - | ^^ -------------- found signature defined here - | | + | ^^ -------------- + | | | | + | | | help: consider borrowing the argument: `&()` + | | found signature defined here | expected due to this | = note: expected closure signature `for<'a> fn(&'a (), for<'a> fn(&'a ())) -> _` @@ -114,8 +138,10 @@ error[E0631]: type mismatch in closure arguments --> $DIR/anonymous-higher-ranked-lifetime.rs:9:5 | LL | g3(|_: (), _: ()| {}); - | ^^ -------------- found signature defined here - | | + | ^^ -------------- + | | | | + | | | help: consider borrowing the argument: `&'s ()` + | | found signature defined here | expected due to this | = note: expected closure signature `for<'s> fn(&'s (), Box<(dyn for<'a> Fn(&'a ()) + 'static)>) -> _` @@ -130,8 +156,10 @@ error[E0631]: type mismatch in closure arguments --> $DIR/anonymous-higher-ranked-lifetime.rs:10:5 | LL | g4(|_: (), _: ()| {}); - | ^^ -------------- found signature defined here - | | + | ^^ -------------- + | | | | + | | | help: consider borrowing the argument: `&()` + | | found signature defined here | expected due to this | = note: expected closure signature `for<'a> fn(&'a (), for<'r> fn(&'r ())) -> _` @@ -157,6 +185,10 @@ note: required by a bound in `h1` | LL | fn h1<F>(_: F) where F: Fn(&(), Box<dyn Fn(&())>, &(), fn(&(), &())) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `h1` +help: consider borrowing the argument + | +LL | h1(|_: &(), _: (), _: &(), _: ()| {}); + | ~~~ ~~~ error[E0631]: type mismatch in closure arguments --> $DIR/anonymous-higher-ranked-lifetime.rs:12:5 @@ -173,6 +205,10 @@ note: required by a bound in `h2` | LL | fn h2<F>(_: F) where F: for<'t0> Fn(&(), Box<dyn Fn(&())>, &'t0 (), fn(&(), &())) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `h2` +help: consider borrowing the argument + | +LL | h2(|_: &(), _: (), _: &'t0 (), _: ()| {}); + | ~~~ ~~~~~~~ error: aborting due to 11 previous errors diff --git a/src/test/ui/argument-suggestions/display-is-suggestable.rs b/src/test/ui/argument-suggestions/display-is-suggestable.rs new file mode 100644 index 00000000000..d765bc4f74d --- /dev/null +++ b/src/test/ui/argument-suggestions/display-is-suggestable.rs @@ -0,0 +1,8 @@ +use std::fmt::Display; + +fn foo(x: &(dyn Display + Send)) {} + +fn main() { + foo(); + //~^ ERROR this function takes 1 argument but 0 arguments were supplied +} diff --git a/src/test/ui/argument-suggestions/display-is-suggestable.stderr b/src/test/ui/argument-suggestions/display-is-suggestable.stderr new file mode 100644 index 00000000000..edd72b53eb3 --- /dev/null +++ b/src/test/ui/argument-suggestions/display-is-suggestable.stderr @@ -0,0 +1,19 @@ +error[E0061]: this function takes 1 argument but 0 arguments were supplied + --> $DIR/display-is-suggestable.rs:6:5 + | +LL | foo(); + | ^^^-- an argument of type `&dyn std::fmt::Display + Send` is missing + | +note: function defined here + --> $DIR/display-is-suggestable.rs:3:4 + | +LL | fn foo(x: &(dyn Display + Send)) {} + | ^^^ ------------------------ +help: provide the argument + | +LL | foo(/* &dyn std::fmt::Display + Send */); + | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0061`. diff --git a/src/test/ui/array-slice-vec/infer_array_len.stderr b/src/test/ui/array-slice-vec/infer_array_len.stderr index 919550cac30..c2a509a1963 100644 --- a/src/test/ui/array-slice-vec/infer_array_len.stderr +++ b/src/test/ui/array-slice-vec/infer_array_len.stderr @@ -6,8 +6,8 @@ LL | let [_, _] = a.into(); | help: consider giving this pattern a type | -LL | let [_, _]: _ = a.into(); - | +++ +LL | let [_, _]: /* Type */ = a.into(); + | ++++++++++++ error: aborting due to previous error diff --git a/src/test/ui/associated-inherent-types/style.rs b/src/test/ui/associated-inherent-types/style.rs new file mode 100644 index 00000000000..8775bd19e1f --- /dev/null +++ b/src/test/ui/associated-inherent-types/style.rs @@ -0,0 +1,12 @@ +#![feature(inherent_associated_types)] +#![allow(incomplete_features, dead_code)] +#![deny(non_camel_case_types)] + +struct S; + +impl S { + type typ = (); + //~^ ERROR associated type `typ` should have an upper camel case name +} + +fn main() {} diff --git a/src/test/ui/associated-inherent-types/style.stderr b/src/test/ui/associated-inherent-types/style.stderr new file mode 100644 index 00000000000..f83061f8c42 --- /dev/null +++ b/src/test/ui/associated-inherent-types/style.stderr @@ -0,0 +1,14 @@ +error: associated type `typ` should have an upper camel case name + --> $DIR/style.rs:8:10 + | +LL | type typ = (); + | ^^^ help: convert the identifier to upper camel case: `Typ` + | +note: the lint level is defined here + --> $DIR/style.rs:3:9 + | +LL | #![deny(non_camel_case_types)] + | ^^^^^^^^^^^^^^^^^^^^ + +error: aborting due to previous error + diff --git a/src/test/ui/associated-item/issue-105449.rs b/src/test/ui/associated-item/issue-105449.rs new file mode 100644 index 00000000000..dd14e05fd49 --- /dev/null +++ b/src/test/ui/associated-item/issue-105449.rs @@ -0,0 +1,59 @@ +// check-pass +// compile-flags: -C debug_assertions=yes -Zunstable-options + +#[allow(dead_code)] +fn problematic_function<Space>() +where + DefaultAlloc: FinAllok<R1, Space>, +{ + let e = Edge2dElement; + let _ = Into::<Point>::into(e.map_reference_coords()); +} +impl<N> Allocator<N, R0> for DefaultAlloc { + type Buffer = MStorage; +} +impl<N> Allocator<N, R1> for DefaultAlloc { + type Buffer = MStorage; +} +impl<N, D> From<VectorN<N, D>> for Point +where + DefaultAlloc: Allocator<N, D>, +{ + fn from(_: VectorN<N, D>) -> Self { + unimplemented!() + } +} +impl<GeometryDim, NodalDim> FinAllok<GeometryDim, NodalDim> for DefaultAlloc +where + DefaultAlloc: Allocator<Ure, GeometryDim>, + DefaultAlloc: Allocator<Ure, NodalDim> +{ +} +impl FiniteElement<R1> for Edge2dElement { + fn map_reference_coords(&self) -> VectorN<Ure, R1> { + unimplemented!() + } +} +type VectorN<N, R> = (N, R, <DefaultAlloc as Allocator<N, R>>::Buffer); +struct DefaultAlloc; +struct R0; +struct R1; +struct MStorage; +struct Point; +struct Edge2dElement; +struct Ure; +trait Allocator<N, R> { + type Buffer; +} +trait FinAllok<GeometryDim, NodalDim>: + Allocator<Ure, GeometryDim> + + Allocator<Ure, NodalDim> + +{ +} +trait FiniteElement<Rau> +where + DefaultAlloc: FinAllok<Rau, Rau>, +{ + fn map_reference_coords(&self) -> VectorN<Ure, Rau>; +} +fn main() {} diff --git a/src/test/ui/associated-type-bounds/const-projection-err.gce.stderr b/src/test/ui/associated-type-bounds/const-projection-err.gce.stderr new file mode 100644 index 00000000000..0f1ec9ad052 --- /dev/null +++ b/src/test/ui/associated-type-bounds/const-projection-err.gce.stderr @@ -0,0 +1,24 @@ +warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes + --> $DIR/const-projection-err.rs:4:26 + | +LL | #![cfg_attr(gce, feature(generic_const_exprs))] + | ^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information + = note: `#[warn(incomplete_features)]` on by default + +error[E0271]: type mismatch resolving `<T as TraitWAssocConst>::A == 1` + --> $DIR/const-projection-err.rs:14:11 + | +LL | foo::<T>(); + | ^ expected `0`, found `1` + | +note: required by a bound in `foo` + --> $DIR/const-projection-err.rs:11:28 + | +LL | fn foo<T: TraitWAssocConst<A = 1>>() {} + | ^^^^^ required by this bound in `foo` + +error: aborting due to previous error; 1 warning emitted + +For more information about this error, try `rustc --explain E0271`. diff --git a/src/test/ui/associated-type-bounds/const-projection-err.rs b/src/test/ui/associated-type-bounds/const-projection-err.rs new file mode 100644 index 00000000000..bead8563001 --- /dev/null +++ b/src/test/ui/associated-type-bounds/const-projection-err.rs @@ -0,0 +1,18 @@ +// revisions: stock gce + +#![feature(associated_const_equality)] +#![cfg_attr(gce, feature(generic_const_exprs))] +//[gce]~^ WARN the feature `generic_const_exprs` is incomplete + +trait TraitWAssocConst { + const A: usize; +} + +fn foo<T: TraitWAssocConst<A = 1>>() {} + +fn bar<T: TraitWAssocConst<A = 0>>() { + foo::<T>(); + //~^ ERROR type mismatch resolving `<T as TraitWAssocConst>::A == 1` +} + +fn main() {} diff --git a/src/test/ui/associated-type-bounds/const-projection-err.stock.stderr b/src/test/ui/associated-type-bounds/const-projection-err.stock.stderr new file mode 100644 index 00000000000..bf0824259a5 --- /dev/null +++ b/src/test/ui/associated-type-bounds/const-projection-err.stock.stderr @@ -0,0 +1,17 @@ +error[E0271]: type mismatch resolving `<T as TraitWAssocConst>::A == 1` + --> $DIR/const-projection-err.rs:14:11 + | +LL | foo::<T>(); + | ^ expected `1`, found `<T as TraitWAssocConst>::A` + | + = note: expected constant `1` + found constant `<T as TraitWAssocConst>::A` +note: required by a bound in `foo` + --> $DIR/const-projection-err.rs:11:28 + | +LL | fn foo<T: TraitWAssocConst<A = 1>>() {} + | ^^^^^ required by this bound in `foo` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0271`. diff --git a/src/test/ui/associated-type-bounds/issue-99828.stderr b/src/test/ui/associated-type-bounds/issue-99828.stderr index 1c20ead0556..dc93c47dace 100644 --- a/src/test/ui/associated-type-bounds/issue-99828.stderr +++ b/src/test/ui/associated-type-bounds/issue-99828.stderr @@ -15,9 +15,6 @@ LL | fn get_iter(vec: &[i32]) -> impl Iterator<Item = {}> + '_ { | note: associated type defined here --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | type Item; - | ^^^^^^^^^ error: aborting due to 2 previous errors diff --git a/src/test/ui/associated-types/associated-types-overridden-binding-2.rs b/src/test/ui/associated-types/associated-types-overridden-binding-2.rs index 26b9f4b3a92..fed60ccf089 100644 --- a/src/test/ui/associated-types/associated-types-overridden-binding-2.rs +++ b/src/test/ui/associated-types/associated-types-overridden-binding-2.rs @@ -4,5 +4,5 @@ trait I32Iterator = Iterator<Item = i32>; fn main() { let _: &dyn I32Iterator<Item = u32> = &vec![42].into_iter(); - //~^ ERROR expected `std::vec::IntoIter<u32>` to be an iterator that yields `i32`, but it yields `u32` + //~^ ERROR expected `IntoIter<u32>` to be an iterator that yields `i32`, but it yields `u32` } diff --git a/src/test/ui/associated-types/associated-types-overridden-binding-2.stderr b/src/test/ui/associated-types/associated-types-overridden-binding-2.stderr index 2d25f68de44..a28a0b74e4a 100644 --- a/src/test/ui/associated-types/associated-types-overridden-binding-2.stderr +++ b/src/test/ui/associated-types/associated-types-overridden-binding-2.stderr @@ -1,4 +1,4 @@ -error[E0271]: expected `std::vec::IntoIter<u32>` to be an iterator that yields `i32`, but it yields `u32` +error[E0271]: expected `IntoIter<u32>` to be an iterator that yields `i32`, but it yields `u32` --> $DIR/associated-types-overridden-binding-2.rs:6:43 | LL | let _: &dyn I32Iterator<Item = u32> = &vec![42].into_iter(); diff --git a/src/test/ui/associated-types/associated-types-unconstrained.stderr b/src/test/ui/associated-types/associated-types-unconstrained.stderr index e51a8f3bd1a..ef9b7cae01b 100644 --- a/src/test/ui/associated-types/associated-types-unconstrained.stderr +++ b/src/test/ui/associated-types/associated-types-unconstrained.stderr @@ -6,6 +6,11 @@ LL | fn bar() -> isize; ... LL | let x: isize = Foo::bar(); | ^^^^^^^^ cannot call associated function of trait + | +help: use the fully-qualified path to the only available implementation + | +LL | let x: isize = <isize as Foo>::bar(); + | +++++++++ + error: aborting due to previous error diff --git a/src/test/ui/associated-types/defaults-wf.stderr b/src/test/ui/associated-types/defaults-wf.stderr index 8455f88f18e..fc830b8d676 100644 --- a/src/test/ui/associated-types/defaults-wf.stderr +++ b/src/test/ui/associated-types/defaults-wf.stderr @@ -7,9 +7,6 @@ LL | type Ty = Vec<[u8]>; = help: the trait `Sized` is not implemented for `[u8]` note: required by a bound in `Vec` --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL - | -LL | pub struct Vec<T, #[unstable(feature = "allocator_api", issue = "32838")] A: Allocator = Global> { - | ^ required by this bound in `Vec` error: aborting due to previous error diff --git a/src/test/ui/associated-types/trait-with-supertraits-needing-sized-self.stderr b/src/test/ui/associated-types/trait-with-supertraits-needing-sized-self.stderr index 0edc9a556b7..8e7cf86c406 100644 --- a/src/test/ui/associated-types/trait-with-supertraits-needing-sized-self.stderr +++ b/src/test/ui/associated-types/trait-with-supertraits-needing-sized-self.stderr @@ -6,9 +6,6 @@ LL | trait ArithmeticOps: Add<Output=Self> + Sub<Output=Self> + Mul<Output=Self> | note: required by a bound in `Add` --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | pub trait Add<Rhs = Self> { - | ^^^^^^^^^^ required by this bound in `Add` help: consider further restricting `Self` | LL | trait ArithmeticOps: Add<Output=Self> + Sub<Output=Self> + Mul<Output=Self> + Div<Output=Self> + Sized {} diff --git a/src/test/ui/async-await/async-await-let-else.drop-tracking.stderr b/src/test/ui/async-await/async-await-let-else.drop-tracking.stderr index 616623ee077..f0f5245a3b4 100644 --- a/src/test/ui/async-await/async-await-let-else.drop-tracking.stderr +++ b/src/test/ui/async-await/async-await-let-else.drop-tracking.stderr @@ -68,14 +68,10 @@ note: future is not `Send` as this value is used across an await --> $DIR/async-await-let-else.rs:33:28 | LL | (Rc::new(()), bar().await); - | ----------- ^^^^^^ await occurs here, with `Rc::new(())` maybe used later - | | + | ----------- ^^^^^^ - `Rc::new(())` is later dropped here + | | | + | | await occurs here, with `Rc::new(())` maybe used later | has type `Rc<()>` which is not `Send` -note: `Rc::new(())` is later dropped here - --> $DIR/async-await-let-else.rs:33:35 - | -LL | (Rc::new(()), bar().await); - | ^ note: required by a bound in `is_send` --> $DIR/async-await-let-else.rs:19:15 | diff --git a/src/test/ui/async-await/async-await-let-else.no-drop-tracking.stderr b/src/test/ui/async-await/async-await-let-else.no-drop-tracking.stderr index 7f93563e288..d3c5e80a30d 100644 --- a/src/test/ui/async-await/async-await-let-else.no-drop-tracking.stderr +++ b/src/test/ui/async-await/async-await-let-else.no-drop-tracking.stderr @@ -53,14 +53,10 @@ note: future is not `Send` as this value is used across an await --> $DIR/async-await-let-else.rs:33:28 | LL | (Rc::new(()), bar().await); - | ----------- ^^^^^^ await occurs here, with `Rc::new(())` maybe used later - | | + | ----------- ^^^^^^ - `Rc::new(())` is later dropped here + | | | + | | await occurs here, with `Rc::new(())` maybe used later | has type `Rc<()>` which is not `Send` -note: `Rc::new(())` is later dropped here - --> $DIR/async-await-let-else.rs:33:35 - | -LL | (Rc::new(()), bar().await); - | ^ note: required by a bound in `is_send` --> $DIR/async-await-let-else.rs:19:15 | diff --git a/src/test/ui/async-await/generator-desc.stderr b/src/test/ui/async-await/generator-desc.stderr index 1686153acf9..963c6ba57ad 100644 --- a/src/test/ui/async-await/generator-desc.stderr +++ b/src/test/ui/async-await/generator-desc.stderr @@ -12,9 +12,6 @@ LL | fun(async {}, async {}); found `async` block `[async block@$DIR/generator-desc.rs:10:19: 10:27]` note: function defined here --> $SRC_DIR/core/src/future/mod.rs:LL:COL - | -LL | pub const fn identity_future<O, Fut: Future<Output = O>>(f: Fut) -> Fut { - | ^^^^^^^^^^^^^^^ error[E0308]: mismatched types --> $DIR/generator-desc.rs:12:16 diff --git a/src/test/ui/async-await/in-trait/async-example-desugared-boxed.rs b/src/test/ui/async-await/in-trait/async-example-desugared-boxed.rs index 61d7e2520ea..1b1b3cffd58 100644 --- a/src/test/ui/async-await/in-trait/async-example-desugared-boxed.rs +++ b/src/test/ui/async-await/in-trait/async-example-desugared-boxed.rs @@ -1,4 +1,3 @@ -// check-pass // edition: 2021 #![feature(async_fn_in_trait)] @@ -13,11 +12,9 @@ trait MyTrait { } impl MyTrait for i32 { - // This will break once a PR that implements #102745 is merged fn foo(&self) -> Pin<Box<dyn Future<Output = i32> + '_>> { - Box::pin(async { - *self - }) + //~^ ERROR method `foo` should be async + Box::pin(async { *self }) } } diff --git a/src/test/ui/async-await/in-trait/async-example-desugared-boxed.stderr b/src/test/ui/async-await/in-trait/async-example-desugared-boxed.stderr new file mode 100644 index 00000000000..60fa534a64f --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-example-desugared-boxed.stderr @@ -0,0 +1,11 @@ +error: method `foo` should be async because the method from the trait is async + --> $DIR/async-example-desugared-boxed.rs:15:5 + | +LL | async fn foo(&self) -> i32; + | --------------------------- required because the trait method is async +... +LL | fn foo(&self) -> Pin<Box<dyn Future<Output = i32> + '_>> { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: aborting due to previous error + diff --git a/src/test/ui/async-await/in-trait/async-example-desugared-extra.rs b/src/test/ui/async-await/in-trait/async-example-desugared-extra.rs new file mode 100644 index 00000000000..81e1e59a362 --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-example-desugared-extra.rs @@ -0,0 +1,37 @@ +// check-pass +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![feature(return_position_impl_trait_in_trait)] +#![allow(incomplete_features)] + +use std::future::Future; +use std::pin::Pin; +use std::task::Poll; + +trait MyTrait { + async fn foo(&self) -> i32; +} + +#[derive(Clone)] +struct MyFuture(i32); + +impl Future for MyFuture { + type Output = i32; + fn poll( + self: Pin<&mut Self>, + _: &mut std::task::Context<'_>, + ) -> Poll<<Self as Future>::Output> { + Poll::Ready(self.0) + } +} + +impl MyTrait for i32 { + // FIXME: this should eventually require `#[refine]` to compile, because it also provides + // `Clone`. + fn foo(&self) -> impl Future<Output = i32> + Clone { + MyFuture(*self) + } +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/async-example-desugared-manual.rs b/src/test/ui/async-await/in-trait/async-example-desugared-manual.rs new file mode 100644 index 00000000000..71473e7455f --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-example-desugared-manual.rs @@ -0,0 +1,29 @@ +// edition: 2021 + +#![feature(async_fn_in_trait)] +#![feature(return_position_impl_trait_in_trait)] +#![allow(incomplete_features)] + +use std::future::Future; +use std::task::Poll; + +trait MyTrait { + async fn foo(&self) -> i32; +} + +struct MyFuture; +impl Future for MyFuture { + type Output = i32; + fn poll(self: std::pin::Pin<&mut Self>, _: &mut std::task::Context<'_>) -> Poll<Self::Output> { + Poll::Ready(0) + } +} + +impl MyTrait for u32 { + fn foo(&self) -> MyFuture { + //~^ ERROR method `foo` should be async + MyFuture + } +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/async-example-desugared-manual.stderr b/src/test/ui/async-await/in-trait/async-example-desugared-manual.stderr new file mode 100644 index 00000000000..567a36a86d1 --- /dev/null +++ b/src/test/ui/async-await/in-trait/async-example-desugared-manual.stderr @@ -0,0 +1,11 @@ +error: method `foo` should be async because the method from the trait is async + --> $DIR/async-example-desugared-manual.rs:23:5 + | +LL | async fn foo(&self) -> i32; + | --------------------------- required because the trait method is async +... +LL | fn foo(&self) -> MyFuture { + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: aborting due to previous error + diff --git a/src/test/ui/async-await/in-trait/async-example-desugared.rs b/src/test/ui/async-await/in-trait/async-example-desugared.rs index 1313c9edd86..fb92ec78674 100644 --- a/src/test/ui/async-await/in-trait/async-example-desugared.rs +++ b/src/test/ui/async-await/in-trait/async-example-desugared.rs @@ -12,11 +12,8 @@ trait MyTrait { } impl MyTrait for i32 { - // This will break once a PR that implements #102745 is merged fn foo(&self) -> impl Future<Output = i32> + '_ { - async { - *self - } + async { *self } } } diff --git a/src/test/ui/async-await/in-trait/bad-signatures.rs b/src/test/ui/async-await/in-trait/bad-signatures.rs new file mode 100644 index 00000000000..b86f1d1c135 --- /dev/null +++ b/src/test/ui/async-await/in-trait/bad-signatures.rs @@ -0,0 +1,16 @@ +// edition:2021 + +#![feature(async_fn_in_trait)] +//~^ WARN the feature `async_fn_in_trait` is incomplete + +trait MyTrait { + async fn bar(&abc self); + //~^ ERROR expected identifier, found keyword `self` + //~| ERROR expected one of `:`, `@`, or `|`, found keyword `self` +} + +impl MyTrait for () { + async fn bar(&self) {} +} + +fn main() {} diff --git a/src/test/ui/async-await/in-trait/bad-signatures.stderr b/src/test/ui/async-await/in-trait/bad-signatures.stderr new file mode 100644 index 00000000000..e0ba7b53ec4 --- /dev/null +++ b/src/test/ui/async-await/in-trait/bad-signatures.stderr @@ -0,0 +1,26 @@ +error: expected identifier, found keyword `self` + --> $DIR/bad-signatures.rs:7:23 + | +LL | async fn bar(&abc self); + | ^^^^ expected identifier, found keyword + +error: expected one of `:`, `@`, or `|`, found keyword `self` + --> $DIR/bad-signatures.rs:7:23 + | +LL | async fn bar(&abc self); + | -----^^^^ + | | | + | | expected one of `:`, `@`, or `|` + | help: declare the type after the parameter binding: `<identifier>: <type>` + +warning: the feature `async_fn_in_trait` is incomplete and may not be safe to use and/or cause compiler crashes + --> $DIR/bad-signatures.rs:3:12 + | +LL | #![feature(async_fn_in_trait)] + | ^^^^^^^^^^^^^^^^^ + | + = note: see issue #91611 <https://github.com/rust-lang/rust/issues/91611> for more information + = note: `#[warn(incomplete_features)]` on by default + +error: aborting due to 2 previous errors; 1 warning emitted + diff --git a/src/test/ui/async-await/in-trait/fn-not-async-err.rs b/src/test/ui/async-await/in-trait/fn-not-async-err.rs index f94d32145a2..9598d53bce8 100644 --- a/src/test/ui/async-await/in-trait/fn-not-async-err.rs +++ b/src/test/ui/async-await/in-trait/fn-not-async-err.rs @@ -9,7 +9,7 @@ trait MyTrait { impl MyTrait for i32 { fn foo(&self) -> i32 { - //~^ ERROR: `i32` is not a future [E0277] + //~^ ERROR: method `foo` should be async *self } } diff --git a/src/test/ui/async-await/in-trait/fn-not-async-err.stderr b/src/test/ui/async-await/in-trait/fn-not-async-err.stderr index 03321dc5b5a..579801d0f39 100644 --- a/src/test/ui/async-await/in-trait/fn-not-async-err.stderr +++ b/src/test/ui/async-await/in-trait/fn-not-async-err.stderr @@ -1,17 +1,11 @@ -error[E0277]: `i32` is not a future - --> $DIR/fn-not-async-err.rs:11:22 - | -LL | fn foo(&self) -> i32 { - | ^^^ `i32` is not a future - | - = help: the trait `Future` is not implemented for `i32` - = note: i32 must be a future or must implement `IntoFuture` to be awaited -note: required by a bound in `MyTrait::foo::{opaque#0}` - --> $DIR/fn-not-async-err.rs:7:28 +error: method `foo` should be async because the method from the trait is async + --> $DIR/fn-not-async-err.rs:11:5 | LL | async fn foo(&self) -> i32; - | ^^^ required by this bound in `MyTrait::foo::{opaque#0}` + | --------------------------- required because the trait method is async +... +LL | fn foo(&self) -> i32 { + | ^^^^^^^^^^^^^^^^^^^^ error: aborting due to previous error -For more information about this error, try `rustc --explain E0277`. diff --git a/src/test/ui/async-await/in-trait/fn-not-async-err2.rs b/src/test/ui/async-await/in-trait/fn-not-async-err2.rs index 594baa91ad8..2c4ed553580 100644 --- a/src/test/ui/async-await/in-trait/fn-not-async-err2.rs +++ b/src/test/ui/async-await/in-trait/fn-not-async-err2.rs @@ -12,9 +12,7 @@ trait MyTrait { impl MyTrait for i32 { fn foo(&self) -> impl Future<Output = i32> { //~^ ERROR `impl Trait` only allowed in function and inherent method return types, not in `impl` method return [E0562] - async { - *self - } + async { *self } } } diff --git a/src/test/ui/async-await/in-trait/issue-104678.rs b/src/test/ui/async-await/in-trait/issue-104678.rs new file mode 100644 index 00000000000..e396df4e5d1 --- /dev/null +++ b/src/test/ui/async-await/in-trait/issue-104678.rs @@ -0,0 +1,31 @@ +// edition:2021 +// check-pass + +#![feature(async_fn_in_trait)] +#![allow(incomplete_features)] + +use std::future::Future; +pub trait Pool { + type Conn; + + async fn async_callback<'a, F: FnOnce(&'a Self::Conn) -> Fut, Fut: Future<Output = ()>>( + &'a self, + callback: F, + ) -> (); +} + +pub struct PoolImpl; +pub struct ConnImpl; + +impl Pool for PoolImpl { + type Conn = ConnImpl; + + async fn async_callback<'a, F: FnOnce(&'a Self::Conn) -> Fut, Fut: Future<Output = ()>>( + &'a self, + _callback: F, + ) -> () { + todo!() + } +} + +fn main() {} diff --git a/src/test/ui/async-await/issue-70935-complex-spans.no_drop_tracking.stderr b/src/test/ui/async-await/issue-70935-complex-spans.no_drop_tracking.stderr index 34b31198e4f..8036d82daa4 100644 --- a/src/test/ui/async-await/issue-70935-complex-spans.no_drop_tracking.stderr +++ b/src/test/ui/async-await/issue-70935-complex-spans.no_drop_tracking.stderr @@ -12,14 +12,10 @@ LL | baz(|| async{ | _____________- LL | | foo(tx.clone()); LL | | }).await; - | | - ^^^^^^ await occurs here, with the value maybe used later - | |_________| + | | - ^^^^^^- the value is later dropped here + | | | | + | |_________| await occurs here, with the value maybe used later | has type `[closure@$DIR/issue-70935-complex-spans.rs:17:13: 17:15]` which is not `Send` -note: the value is later dropped here - --> $DIR/issue-70935-complex-spans.rs:19:17 - | -LL | }).await; - | ^ error: aborting due to previous error diff --git a/src/test/ui/async-await/issue-72442.stderr b/src/test/ui/async-await/issue-72442.stderr index 919abf64603..4a1705715ca 100644 --- a/src/test/ui/async-await/issue-72442.stderr +++ b/src/test/ui/async-await/issue-72442.stderr @@ -8,9 +8,6 @@ LL | let mut f = File::open(path.to_str())?; | note: required by a bound in `File::open` --> $SRC_DIR/std/src/fs.rs:LL:COL - | -LL | pub fn open<P: AsRef<Path>>(path: P) -> io::Result<File> { - | ^^^^^^^^^^^ required by this bound in `File::open` error: aborting due to previous error diff --git a/src/test/ui/async-await/issues/issue-65159.stderr b/src/test/ui/async-await/issues/issue-65159.stderr index 45f5ec40cd7..40c0e72b203 100644 --- a/src/test/ui/async-await/issues/issue-65159.stderr +++ b/src/test/ui/async-await/issues/issue-65159.stderr @@ -6,11 +6,6 @@ LL | async fn copy() -> Result<()> | | | expected 2 generic arguments | -note: enum defined here, with 2 generic parameters: `T`, `E` - --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | pub enum Result<T, E> { - | ^^^^^^ - - help: add missing generic argument | LL | async fn copy() -> Result<(), E> diff --git a/src/test/ui/async-await/issues/issue-65436-raw-ptr-not-send.no_drop_tracking.stderr b/src/test/ui/async-await/issues/issue-65436-raw-ptr-not-send.no_drop_tracking.stderr index ab196dca20c..1033fa6cc8b 100644 --- a/src/test/ui/async-await/issues/issue-65436-raw-ptr-not-send.no_drop_tracking.stderr +++ b/src/test/ui/async-await/issues/issue-65436-raw-ptr-not-send.no_drop_tracking.stderr @@ -13,14 +13,10 @@ note: future is not `Send` as this value is used across an await --> $DIR/issue-65436-raw-ptr-not-send.rs:18:35 | LL | bar(Foo(std::ptr::null())).await; - | ---------------- ^^^^^^ await occurs here, with `std::ptr::null()` maybe used later - | | + | ---------------- ^^^^^^- `std::ptr::null()` is later dropped here + | | | + | | await occurs here, with `std::ptr::null()` maybe used later | has type `*const u8` which is not `Send` -note: `std::ptr::null()` is later dropped here - --> $DIR/issue-65436-raw-ptr-not-send.rs:18:41 - | -LL | bar(Foo(std::ptr::null())).await; - | ^ help: consider moving this into a `let` binding to create a shorter lived borrow --> $DIR/issue-65436-raw-ptr-not-send.rs:18:13 | diff --git a/src/test/ui/async-await/issues/issue-67893.stderr b/src/test/ui/async-await/issues/issue-67893.stderr index 316b6d06f93..2ce68a78291 100644 --- a/src/test/ui/async-await/issues/issue-67893.stderr +++ b/src/test/ui/async-await/issues/issue-67893.stderr @@ -9,14 +9,10 @@ note: future is not `Send` as this value is used across an await --> $DIR/auxiliary/issue_67893.rs:9:26 | LL | f(*x.lock().unwrap()).await; - | ----------------- ^^^^^^ await occurs here, with `x.lock().unwrap()` maybe used later - | | + | ----------------- ^^^^^^- `x.lock().unwrap()` is later dropped here + | | | + | | await occurs here, with `x.lock().unwrap()` maybe used later | has type `MutexGuard<'_, ()>` which is not `Send` -note: `x.lock().unwrap()` is later dropped here - --> $DIR/auxiliary/issue_67893.rs:9:32 - | -LL | f(*x.lock().unwrap()).await; - | ^ note: required by a bound in `g` --> $DIR/issue-67893.rs:6:14 | diff --git a/src/test/ui/async-await/pin-needed-to-poll-2.stderr b/src/test/ui/async-await/pin-needed-to-poll-2.stderr index 83d1a02c876..0a6f705e255 100644 --- a/src/test/ui/async-await/pin-needed-to-poll-2.stderr +++ b/src/test/ui/async-await/pin-needed-to-poll-2.stderr @@ -14,9 +14,6 @@ LL | struct Sleep(std::marker::PhantomPinned); | ^^^^^ note: required by a bound in `Pin::<P>::new` --> $SRC_DIR/core/src/pin.rs:LL:COL - | -LL | impl<P: Deref<Target: Unpin>> Pin<P> { - | ^^^^^ required by this bound in `Pin::<P>::new` error: aborting due to previous error diff --git a/src/test/ui/async-await/pin-needed-to-poll.stderr b/src/test/ui/async-await/pin-needed-to-poll.stderr index 2e8723b2743..b1f4a73aafe 100644 --- a/src/test/ui/async-await/pin-needed-to-poll.stderr +++ b/src/test/ui/async-await/pin-needed-to-poll.stderr @@ -6,11 +6,9 @@ LL | struct Sleep; ... LL | self.sleep.poll(cx) | ^^^^ method not found in `Sleep` + --> $SRC_DIR/core/src/future/future.rs:LL:COL | - ::: $SRC_DIR/core/src/future/future.rs:LL:COL - | -LL | fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>; - | ---- the method is available for `Pin<&mut Sleep>` here + = note: the method is available for `Pin<&mut Sleep>` here | help: consider wrapping the receiver expression with the appropriate type | diff --git a/src/test/ui/async-await/track-caller/async-block.rs b/src/test/ui/async-await/track-caller/async-block.rs new file mode 100644 index 00000000000..8e81387c34b --- /dev/null +++ b/src/test/ui/async-await/track-caller/async-block.rs @@ -0,0 +1,9 @@ +// edition:2021 + +#![feature(closure_track_caller, stmt_expr_attributes)] + +fn main() { + let _ = #[track_caller] async { + //~^ ERROR attribute should be applied to a function definition [E0739] + }; +} diff --git a/src/test/ui/async-await/track-caller/async-block.stderr b/src/test/ui/async-await/track-caller/async-block.stderr new file mode 100644 index 00000000000..407439921c0 --- /dev/null +++ b/src/test/ui/async-await/track-caller/async-block.stderr @@ -0,0 +1,12 @@ +error[E0739]: attribute should be applied to a function definition + --> $DIR/async-block.rs:6:13 + | +LL | let _ = #[track_caller] async { + | _____________^^^^^^^^^^^^^^^_- +LL | | +LL | | }; + | |_____- not a function definition + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0739`. diff --git a/src/test/ui/async-await/track-caller/async-closure-gate.rs b/src/test/ui/async-await/track-caller/async-closure-gate.rs new file mode 100644 index 00000000000..9593fdb1908 --- /dev/null +++ b/src/test/ui/async-await/track-caller/async-closure-gate.rs @@ -0,0 +1,10 @@ +// edition:2021 + +#![feature(async_closure, stmt_expr_attributes)] + +fn main() { + let _ = #[track_caller] async || { + //~^ ERROR `#[track_caller]` on closures is currently unstable [E0658] + //~| ERROR `#[track_caller]` on closures is currently unstable [E0658] + }; +} diff --git a/src/test/ui/async-await/track-caller/async-closure-gate.stderr b/src/test/ui/async-await/track-caller/async-closure-gate.stderr new file mode 100644 index 00000000000..be3d110eccd --- /dev/null +++ b/src/test/ui/async-await/track-caller/async-closure-gate.stderr @@ -0,0 +1,25 @@ +error[E0658]: `#[track_caller]` on closures is currently unstable + --> $DIR/async-closure-gate.rs:6:13 + | +LL | let _ = #[track_caller] async || { + | ^^^^^^^^^^^^^^^ + | + = note: see issue #87417 <https://github.com/rust-lang/rust/issues/87417> for more information + = help: add `#![feature(closure_track_caller)]` to the crate attributes to enable + +error[E0658]: `#[track_caller]` on closures is currently unstable + --> $DIR/async-closure-gate.rs:6:38 + | +LL | let _ = #[track_caller] async || { + | ______________________________________^ +LL | | +LL | | +LL | | }; + | |_____^ + | + = note: see issue #87417 <https://github.com/rust-lang/rust/issues/87417> for more information + = help: add `#![feature(closure_track_caller)]` to the crate attributes to enable + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0658`. diff --git a/src/test/ui/async-await/track-caller/panic-track-caller.rs b/src/test/ui/async-await/track-caller/panic-track-caller.rs index 5ebfeb3f36a..066cf97628f 100644 --- a/src/test/ui/async-await/track-caller/panic-track-caller.rs +++ b/src/test/ui/async-await/track-caller/panic-track-caller.rs @@ -1,7 +1,7 @@ // run-pass // edition:2021 // needs-unwind -#![feature(closure_track_caller)] +#![feature(closure_track_caller, async_closure, stmt_expr_attributes)] use std::future::Future; use std::panic; @@ -67,6 +67,13 @@ async fn foo_assoc() { Foo::bar_assoc().await } +async fn foo_closure() { + let c = #[track_caller] async || { + panic!(); + }; + c().await +} + fn panicked_at(f: impl FnOnce() + panic::UnwindSafe) -> u32 { let loc = Arc::new(Mutex::new(None)); @@ -87,4 +94,5 @@ fn main() { assert_eq!(panicked_at(|| block_on(foo())), 41); assert_eq!(panicked_at(|| block_on(foo_track_caller())), 54); assert_eq!(panicked_at(|| block_on(foo_assoc())), 67); + assert_eq!(panicked_at(|| block_on(foo_closure())), 74); } diff --git a/src/test/ui/binop/binop-consume-args.stderr b/src/test/ui/binop/binop-consume-args.stderr index c734f8c1e17..6fbbb55437e 100644 --- a/src/test/ui/binop/binop-consume-args.stderr +++ b/src/test/ui/binop/binop-consume-args.stderr @@ -10,9 +10,6 @@ LL | drop(lhs); | note: calling this operator moves the left-hand side --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | fn add(self, rhs: Rhs) -> Self::Output; - | ^^^^ help: consider further restricting this bound | LL | fn add<A: Add<B, Output=()> + Copy, B>(lhs: A, rhs: B) { @@ -46,9 +43,6 @@ LL | drop(lhs); | note: calling this operator moves the left-hand side --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | fn sub(self, rhs: Rhs) -> Self::Output; - | ^^^^ help: consider further restricting this bound | LL | fn sub<A: Sub<B, Output=()> + Copy, B>(lhs: A, rhs: B) { @@ -82,9 +76,6 @@ LL | drop(lhs); | note: calling this operator moves the left-hand side --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | fn mul(self, rhs: Rhs) -> Self::Output; - | ^^^^ help: consider further restricting this bound | LL | fn mul<A: Mul<B, Output=()> + Copy, B>(lhs: A, rhs: B) { @@ -118,9 +109,6 @@ LL | drop(lhs); | note: calling this operator moves the left-hand side --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | fn div(self, rhs: Rhs) -> Self::Output; - | ^^^^ help: consider further restricting this bound | LL | fn div<A: Div<B, Output=()> + Copy, B>(lhs: A, rhs: B) { @@ -154,9 +142,6 @@ LL | drop(lhs); | note: calling this operator moves the left-hand side --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | fn rem(self, rhs: Rhs) -> Self::Output; - | ^^^^ help: consider further restricting this bound | LL | fn rem<A: Rem<B, Output=()> + Copy, B>(lhs: A, rhs: B) { @@ -190,9 +175,6 @@ LL | drop(lhs); | note: calling this operator moves the left-hand side --> $SRC_DIR/core/src/ops/bit.rs:LL:COL - | -LL | fn bitand(self, rhs: Rhs) -> Self::Output; - | ^^^^ help: consider further restricting this bound | LL | fn bitand<A: BitAnd<B, Output=()> + Copy, B>(lhs: A, rhs: B) { @@ -226,9 +208,6 @@ LL | drop(lhs); | note: calling this operator moves the left-hand side --> $SRC_DIR/core/src/ops/bit.rs:LL:COL - | -LL | fn bitor(self, rhs: Rhs) -> Self::Output; - | ^^^^ help: consider further restricting this bound | LL | fn bitor<A: BitOr<B, Output=()> + Copy, B>(lhs: A, rhs: B) { @@ -262,9 +241,6 @@ LL | drop(lhs); | note: calling this operator moves the left-hand side --> $SRC_DIR/core/src/ops/bit.rs:LL:COL - | -LL | fn bitxor(self, rhs: Rhs) -> Self::Output; - | ^^^^ help: consider further restricting this bound | LL | fn bitxor<A: BitXor<B, Output=()> + Copy, B>(lhs: A, rhs: B) { @@ -298,9 +274,6 @@ LL | drop(lhs); | note: calling this operator moves the left-hand side --> $SRC_DIR/core/src/ops/bit.rs:LL:COL - | -LL | fn shl(self, rhs: Rhs) -> Self::Output; - | ^^^^ help: consider further restricting this bound | LL | fn shl<A: Shl<B, Output=()> + Copy, B>(lhs: A, rhs: B) { @@ -334,9 +307,6 @@ LL | drop(lhs); | note: calling this operator moves the left-hand side --> $SRC_DIR/core/src/ops/bit.rs:LL:COL - | -LL | fn shr(self, rhs: Rhs) -> Self::Output; - | ^^^^ help: consider further restricting this bound | LL | fn shr<A: Shr<B, Output=()> + Copy, B>(lhs: A, rhs: B) { diff --git a/src/test/ui/binop/binop-move-semantics.stderr b/src/test/ui/binop/binop-move-semantics.stderr index 994eaf9d8c7..dae267da05d 100644 --- a/src/test/ui/binop/binop-move-semantics.stderr +++ b/src/test/ui/binop/binop-move-semantics.stderr @@ -13,9 +13,6 @@ LL | | x; | note: calling this operator moves the left-hand side --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | fn add(self, rhs: Rhs) -> Self::Output; - | ^^^^ help: consider further restricting this bound | LL | fn double_move<T: Add<Output=()> + Copy>(x: T) { @@ -78,9 +75,6 @@ LL | | *n; | note: calling this operator moves the left-hand side --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | fn add(self, rhs: Rhs) -> Self::Output; - | ^^^^ error[E0507]: cannot move out of `*n` which is behind a shared reference --> $DIR/binop-move-semantics.rs:32:5 diff --git a/src/test/ui/binop/issue-28837.stderr b/src/test/ui/binop/issue-28837.stderr index b9c7e1bea70..6e236ca5296 100644 --- a/src/test/ui/binop/issue-28837.stderr +++ b/src/test/ui/binop/issue-28837.stderr @@ -11,11 +11,8 @@ note: an implementation of `Add<_>` might be missing for `A` | LL | struct A; | ^^^^^^^^ must implement `Add<_>` -note: the following trait must be implemented +note: the trait `Add` must be implemented --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | pub trait Add<Rhs = Self> { - | ^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0369]: cannot subtract `A` from `A` --> $DIR/issue-28837.rs:8:7 @@ -30,11 +27,8 @@ note: an implementation of `Sub<_>` might be missing for `A` | LL | struct A; | ^^^^^^^^ must implement `Sub<_>` -note: the following trait must be implemented +note: the trait `Sub` must be implemented --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | pub trait Sub<Rhs = Self> { - | ^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0369]: cannot multiply `A` by `A` --> $DIR/issue-28837.rs:10:7 @@ -49,11 +43,8 @@ note: an implementation of `Mul<_>` might be missing for `A` | LL | struct A; | ^^^^^^^^ must implement `Mul<_>` -note: the following trait must be implemented +note: the trait `Mul` must be implemented --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | pub trait Mul<Rhs = Self> { - | ^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0369]: cannot divide `A` by `A` --> $DIR/issue-28837.rs:12:7 @@ -68,11 +59,8 @@ note: an implementation of `Div<_>` might be missing for `A` | LL | struct A; | ^^^^^^^^ must implement `Div<_>` -note: the following trait must be implemented +note: the trait `Div` must be implemented --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | pub trait Div<Rhs = Self> { - | ^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0369]: cannot mod `A` by `A` --> $DIR/issue-28837.rs:14:7 @@ -87,11 +75,8 @@ note: an implementation of `Rem<_>` might be missing for `A` | LL | struct A; | ^^^^^^^^ must implement `Rem<_>` -note: the following trait must be implemented +note: the trait `Rem` must be implemented --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | pub trait Rem<Rhs = Self> { - | ^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0369]: no implementation for `A & A` --> $DIR/issue-28837.rs:16:7 @@ -106,11 +91,8 @@ note: an implementation of `BitAnd<_>` might be missing for `A` | LL | struct A; | ^^^^^^^^ must implement `BitAnd<_>` -note: the following trait must be implemented +note: the trait `BitAnd` must be implemented --> $SRC_DIR/core/src/ops/bit.rs:LL:COL - | -LL | pub trait BitAnd<Rhs = Self> { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0369]: no implementation for `A | A` --> $DIR/issue-28837.rs:18:7 @@ -125,11 +107,8 @@ note: an implementation of `BitOr<_>` might be missing for `A` | LL | struct A; | ^^^^^^^^ must implement `BitOr<_>` -note: the following trait must be implemented +note: the trait `BitOr` must be implemented --> $SRC_DIR/core/src/ops/bit.rs:LL:COL - | -LL | pub trait BitOr<Rhs = Self> { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0369]: no implementation for `A << A` --> $DIR/issue-28837.rs:20:7 @@ -144,11 +123,8 @@ note: an implementation of `Shl<_>` might be missing for `A` | LL | struct A; | ^^^^^^^^ must implement `Shl<_>` -note: the following trait must be implemented +note: the trait `Shl` must be implemented --> $SRC_DIR/core/src/ops/bit.rs:LL:COL - | -LL | pub trait Shl<Rhs = Self> { - | ^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0369]: no implementation for `A >> A` --> $DIR/issue-28837.rs:22:7 @@ -163,11 +139,8 @@ note: an implementation of `Shr<_>` might be missing for `A` | LL | struct A; | ^^^^^^^^ must implement `Shr<_>` -note: the following trait must be implemented +note: the trait `Shr` must be implemented --> $SRC_DIR/core/src/ops/bit.rs:LL:COL - | -LL | pub trait Shr<Rhs = Self> { - | ^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0369]: binary operation `==` cannot be applied to type `A` --> $DIR/issue-28837.rs:24:7 diff --git a/src/test/ui/binop/issue-3820.stderr b/src/test/ui/binop/issue-3820.stderr index f21f8906911..c313ed6037f 100644 --- a/src/test/ui/binop/issue-3820.stderr +++ b/src/test/ui/binop/issue-3820.stderr @@ -11,11 +11,8 @@ note: an implementation of `Mul<_>` might be missing for `Thing` | LL | struct Thing { | ^^^^^^^^^^^^ must implement `Mul<_>` -note: the following trait must be implemented +note: the trait `Mul` must be implemented --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | pub trait Mul<Rhs = Self> { - | ^^^^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to previous error diff --git a/src/test/ui/borrowck/access-mode-in-closures.stderr b/src/test/ui/borrowck/access-mode-in-closures.stderr index 13a6277da14..abee72ba8cf 100644 --- a/src/test/ui/borrowck/access-mode-in-closures.stderr +++ b/src/test/ui/borrowck/access-mode-in-closures.stderr @@ -3,10 +3,15 @@ error[E0507]: cannot move out of `s` which is behind a shared reference | LL | match *s { S(v) => v } | ^^ - - | | | - | | data moved here - | | move occurs because `v` has type `Vec<isize>`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*s` + | | + | data moved here + | move occurs because `v` has type `Vec<isize>`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - match *s { S(v) => v } +LL + match s { S(v) => v } + | error: aborting due to previous error diff --git a/src/test/ui/borrowck/borrowck-for-loop-correct-cmt-for-pattern.stderr b/src/test/ui/borrowck/borrowck-for-loop-correct-cmt-for-pattern.stderr index 2eabc1f1d9d..f9ced03e0f0 100644 --- a/src/test/ui/borrowck/borrowck-for-loop-correct-cmt-for-pattern.stderr +++ b/src/test/ui/borrowck/borrowck-for-loop-correct-cmt-for-pattern.stderr @@ -2,31 +2,46 @@ error[E0507]: cannot move out of a shared reference --> $DIR/borrowck-for-loop-correct-cmt-for-pattern.rs:12:15 | LL | for &a in x.iter() { - | -- ^^^^^^^^ - | || - | |data moved here - | |move occurs because `a` has type `&mut i32`, which does not implement the `Copy` trait - | help: consider removing the `&`: `a` + | - ^^^^^^^^ + | | + | data moved here + | move occurs because `a` has type `&mut i32`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - for &a in x.iter() { +LL + for a in x.iter() { + | error[E0507]: cannot move out of a shared reference --> $DIR/borrowck-for-loop-correct-cmt-for-pattern.rs:18:15 | LL | for &a in &f.a { - | -- ^^^^ - | || - | |data moved here - | |move occurs because `a` has type `Box<isize>`, which does not implement the `Copy` trait - | help: consider removing the `&`: `a` + | - ^^^^ + | | + | data moved here + | move occurs because `a` has type `Box<isize>`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - for &a in &f.a { +LL + for a in &f.a { + | error[E0507]: cannot move out of a shared reference --> $DIR/borrowck-for-loop-correct-cmt-for-pattern.rs:22:15 | LL | for &a in x.iter() { - | -- ^^^^^^^^ - | || - | |data moved here - | |move occurs because `a` has type `Box<i32>`, which does not implement the `Copy` trait - | help: consider removing the `&`: `a` + | - ^^^^^^^^ + | | + | data moved here + | move occurs because `a` has type `Box<i32>`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - for &a in x.iter() { +LL + for a in x.iter() { + | error: aborting due to 3 previous errors diff --git a/src/test/ui/borrowck/borrowck-issue-2657-2.fixed b/src/test/ui/borrowck/borrowck-issue-2657-2.fixed new file mode 100644 index 00000000000..625e7c3cad5 --- /dev/null +++ b/src/test/ui/borrowck/borrowck-issue-2657-2.fixed @@ -0,0 +1,12 @@ +// run-rustfix +fn main() { + + let x: Option<Box<_>> = Some(Box::new(1)); + + match x { + Some(ref y) => { + let _b = y; //~ ERROR cannot move out + } + _ => {} + } +} diff --git a/src/test/ui/borrowck/borrowck-issue-2657-2.rs b/src/test/ui/borrowck/borrowck-issue-2657-2.rs index 7dbac02154a..f79a846e70e 100644 --- a/src/test/ui/borrowck/borrowck-issue-2657-2.rs +++ b/src/test/ui/borrowck/borrowck-issue-2657-2.rs @@ -1,3 +1,4 @@ +// run-rustfix fn main() { let x: Option<Box<_>> = Some(Box::new(1)); diff --git a/src/test/ui/borrowck/borrowck-issue-2657-2.stderr b/src/test/ui/borrowck/borrowck-issue-2657-2.stderr index f9ba2ca416b..850bb9ae393 100644 --- a/src/test/ui/borrowck/borrowck-issue-2657-2.stderr +++ b/src/test/ui/borrowck/borrowck-issue-2657-2.stderr @@ -1,11 +1,14 @@ error[E0507]: cannot move out of `*y` which is behind a shared reference - --> $DIR/borrowck-issue-2657-2.rs:7:18 + --> $DIR/borrowck-issue-2657-2.rs:8:18 | LL | let _b = *y; - | ^^ - | | - | move occurs because `*y` has type `Box<i32>`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*y` + | ^^ move occurs because `*y` has type `Box<i32>`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let _b = *y; +LL + let _b = y; + | error: aborting due to previous error diff --git a/src/test/ui/borrowck/borrowck-move-error-with-note.fixed b/src/test/ui/borrowck/borrowck-move-error-with-note.fixed new file mode 100644 index 00000000000..cf6c382a692 --- /dev/null +++ b/src/test/ui/borrowck/borrowck-move-error-with-note.fixed @@ -0,0 +1,56 @@ +// run-rustfix +#![allow(unused)] +enum Foo { + Foo1(Box<u32>, Box<u32>), + Foo2(Box<u32>), + Foo3, +} + + + +fn blah() { + let f = &Foo::Foo1(Box::new(1), Box::new(2)); + match f { //~ ERROR cannot move out of + Foo::Foo1(num1, + num2) => (), + Foo::Foo2(num) => (), + Foo::Foo3 => () + } +} + +struct S { + f: String, + g: String +} +impl Drop for S { + fn drop(&mut self) { println!("{}", self.f); } +} + +fn move_in_match() { + match (S {f: "foo".to_string(), g: "bar".to_string()}) { + //~^ ERROR cannot move out of type `S`, which implements the `Drop` trait + S { + f: ref _s, + g: ref _t + } => {} + } +} + +// from issue-8064 +struct A { + a: Box<isize>, +} + +fn free<T>(_: T) {} + +fn blah2() { + let a = &A { a: Box::new(1) }; + match &a.a { //~ ERROR cannot move out of + n => { + free(n) + } + } + free(a) +} + +fn main() {} diff --git a/src/test/ui/borrowck/borrowck-move-error-with-note.rs b/src/test/ui/borrowck/borrowck-move-error-with-note.rs index ef38cbb63a5..f336ac4f994 100644 --- a/src/test/ui/borrowck/borrowck-move-error-with-note.rs +++ b/src/test/ui/borrowck/borrowck-move-error-with-note.rs @@ -1,3 +1,5 @@ +// run-rustfix +#![allow(unused)] enum Foo { Foo1(Box<u32>, Box<u32>), Foo2(Box<u32>), diff --git a/src/test/ui/borrowck/borrowck-move-error-with-note.stderr b/src/test/ui/borrowck/borrowck-move-error-with-note.stderr index 96246d9ae1a..722c2c1443a 100644 --- a/src/test/ui/borrowck/borrowck-move-error-with-note.stderr +++ b/src/test/ui/borrowck/borrowck-move-error-with-note.stderr @@ -1,8 +1,8 @@ error[E0507]: cannot move out of `f` as enum variant `Foo1` which is behind a shared reference - --> $DIR/borrowck-move-error-with-note.rs:11:11 + --> $DIR/borrowck-move-error-with-note.rs:13:11 | LL | match *f { - | ^^ help: consider borrowing here: `&*f` + | ^^ LL | Foo::Foo1(num1, | ---- data moved here LL | num2) => (), @@ -11,9 +11,14 @@ LL | Foo::Foo2(num) => (), | --- ...and here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider removing the dereference here + | +LL - match *f { +LL + match f { + | error[E0509]: cannot move out of type `S`, which implements the `Drop` trait - --> $DIR/borrowck-move-error-with-note.rs:28:11 + --> $DIR/borrowck-move-error-with-note.rs:30:11 | LL | match (S {f: "foo".to_string(), g: "bar".to_string()}) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot move out of here @@ -24,17 +29,30 @@ LL | g: _t | -- ...and here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider borrowing the pattern binding + | +LL | f: ref _s, + | +++ +help: consider borrowing the pattern binding + | +LL | g: ref _t + | +++ error[E0507]: cannot move out of `a.a` which is behind a shared reference - --> $DIR/borrowck-move-error-with-note.rs:46:11 + --> $DIR/borrowck-move-error-with-note.rs:48:11 | LL | match a.a { - | ^^^ help: consider borrowing here: `&a.a` + | ^^^ LL | n => { | - | | | data moved here | move occurs because `n` has type `Box<isize>`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | match &a.a { + | + error: aborting due to 3 previous errors diff --git a/src/test/ui/borrowck/borrowck-move-from-unsafe-ptr.stderr b/src/test/ui/borrowck/borrowck-move-from-unsafe-ptr.stderr index 7ac095e808a..43fc102bd62 100644 --- a/src/test/ui/borrowck/borrowck-move-from-unsafe-ptr.stderr +++ b/src/test/ui/borrowck/borrowck-move-from-unsafe-ptr.stderr @@ -2,10 +2,13 @@ error[E0507]: cannot move out of `*x` which is behind a raw pointer --> $DIR/borrowck-move-from-unsafe-ptr.rs:2:13 | LL | let y = *x; - | ^^ - | | - | move occurs because `*x` has type `Box<isize>`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*x` + | ^^ move occurs because `*x` has type `Box<isize>`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let y = *x; +LL + let y = x; + | error: aborting due to previous error diff --git a/src/test/ui/borrowck/borrowck-move-in-irrefut-pat.stderr b/src/test/ui/borrowck/borrowck-move-in-irrefut-pat.stderr index 6b19f9d977e..21bd073321b 100644 --- a/src/test/ui/borrowck/borrowck-move-in-irrefut-pat.stderr +++ b/src/test/ui/borrowck/borrowck-move-in-irrefut-pat.stderr @@ -3,30 +3,45 @@ error[E0507]: cannot move out of a shared reference | LL | fn arg_item(&_x: &String) {} | ^-- - | || - | |data moved here - | |move occurs because `_x` has type `String`, which does not implement the `Copy` trait - | help: consider removing the `&`: `_x` + | | + | data moved here + | move occurs because `_x` has type `String`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - fn arg_item(&_x: &String) {} +LL + fn arg_item(_x: &String) {} + | error[E0507]: cannot move out of a shared reference --> $DIR/borrowck-move-in-irrefut-pat.rs:7:11 | LL | with(|&_x| ()) | ^-- - | || - | |data moved here - | |move occurs because `_x` has type `String`, which does not implement the `Copy` trait - | help: consider removing the `&`: `_x` + | | + | data moved here + | move occurs because `_x` has type `String`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - with(|&_x| ()) +LL + with(|_x| ()) + | error[E0507]: cannot move out of a shared reference --> $DIR/borrowck-move-in-irrefut-pat.rs:12:15 | LL | let &_x = &"hi".to_string(); - | --- ^^^^^^^^^^^^^^^^^ - | || - | |data moved here - | |move occurs because `_x` has type `String`, which does not implement the `Copy` trait - | help: consider removing the `&`: `_x` + | -- ^^^^^^^^^^^^^^^^^ + | | + | data moved here + | move occurs because `_x` has type `String`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - let &_x = &"hi".to_string(); +LL + let _x = &"hi".to_string(); + | error: aborting due to 3 previous errors diff --git a/src/test/ui/borrowck/borrowck-move-out-of-overloaded-auto-deref.stderr b/src/test/ui/borrowck/borrowck-move-out-of-overloaded-auto-deref.stderr index 800f30b34e5..ecf5382e863 100644 --- a/src/test/ui/borrowck/borrowck-move-out-of-overloaded-auto-deref.stderr +++ b/src/test/ui/borrowck/borrowck-move-out-of-overloaded-auto-deref.stderr @@ -7,11 +7,8 @@ LL | let _x = Rc::new(vec![1, 2]).into_iter(); | | value moved due to this method call | move occurs because value has type `Vec<i32>`, which does not implement the `Copy` trait | -note: this function takes ownership of the receiver `self`, which moves value +note: `into_iter` takes ownership of the receiver `self`, which moves value --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | fn into_iter(self) -> Self::IntoIter; - | ^^^^ error: aborting due to previous error diff --git a/src/test/ui/borrowck/borrowck-move-out-of-overloaded-deref.stderr b/src/test/ui/borrowck/borrowck-move-out-of-overloaded-deref.stderr index 68994c2071b..599fa1e88df 100644 --- a/src/test/ui/borrowck/borrowck-move-out-of-overloaded-deref.stderr +++ b/src/test/ui/borrowck/borrowck-move-out-of-overloaded-deref.stderr @@ -2,10 +2,13 @@ error[E0507]: cannot move out of an `Rc` --> $DIR/borrowck-move-out-of-overloaded-deref.rs:4:14 | LL | let _x = *Rc::new("hi".to_string()); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - | | - | move occurs because value has type `String`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*Rc::new("hi".to_string())` + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ move occurs because value has type `String`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let _x = *Rc::new("hi".to_string()); +LL + let _x = Rc::new("hi".to_string()); + | error: aborting due to previous error diff --git a/src/test/ui/borrowck/borrowck-move-out-of-struct-with-dtor.fixed b/src/test/ui/borrowck/borrowck-move-out-of-struct-with-dtor.fixed new file mode 100644 index 00000000000..c463c655938 --- /dev/null +++ b/src/test/ui/borrowck/borrowck-move-out-of-struct-with-dtor.fixed @@ -0,0 +1,24 @@ +// run-rustfix +#![allow(unused)] +struct S {f:String} +impl Drop for S { + fn drop(&mut self) { println!("{}", self.f); } +} + +fn move_in_match() { + match (S {f:"foo".to_string()}) { + //~^ ERROR [E0509] + S {f:ref _s} => {} + } +} + +fn move_in_let() { + let S {f:ref _s} = S {f:"foo".to_string()}; + //~^ ERROR [E0509] +} + +fn move_in_fn_arg(S {f:ref _s}: S) { + //~^ ERROR [E0509] +} + +fn main() {} diff --git a/src/test/ui/borrowck/borrowck-move-out-of-struct-with-dtor.rs b/src/test/ui/borrowck/borrowck-move-out-of-struct-with-dtor.rs index a429f4bc33b..93183062d61 100644 --- a/src/test/ui/borrowck/borrowck-move-out-of-struct-with-dtor.rs +++ b/src/test/ui/borrowck/borrowck-move-out-of-struct-with-dtor.rs @@ -1,3 +1,5 @@ +// run-rustfix +#![allow(unused)] struct S {f:String} impl Drop for S { fn drop(&mut self) { println!("{}", self.f); } diff --git a/src/test/ui/borrowck/borrowck-move-out-of-struct-with-dtor.stderr b/src/test/ui/borrowck/borrowck-move-out-of-struct-with-dtor.stderr index 7b00ac9f1c3..58f706c65ff 100644 --- a/src/test/ui/borrowck/borrowck-move-out-of-struct-with-dtor.stderr +++ b/src/test/ui/borrowck/borrowck-move-out-of-struct-with-dtor.stderr @@ -1,5 +1,5 @@ error[E0509]: cannot move out of type `S`, which implements the `Drop` trait - --> $DIR/borrowck-move-out-of-struct-with-dtor.rs:7:11 + --> $DIR/borrowck-move-out-of-struct-with-dtor.rs:9:11 | LL | match (S {f:"foo".to_string()}) { | ^^^^^^^^^^^^^^^^^^^^^^^^^ cannot move out of here @@ -9,18 +9,28 @@ LL | S {f:_s} => {} | | | data moved here | move occurs because `_s` has type `String`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | S {f:ref _s} => {} + | +++ error[E0509]: cannot move out of type `S`, which implements the `Drop` trait - --> $DIR/borrowck-move-out-of-struct-with-dtor.rs:14:20 + --> $DIR/borrowck-move-out-of-struct-with-dtor.rs:16:20 | LL | let S {f:_s} = S {f:"foo".to_string()}; | -- ^^^^^^^^^^^^^^^^^^^^^^^ cannot move out of here | | | data moved here | move occurs because `_s` has type `String`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | let S {f:ref _s} = S {f:"foo".to_string()}; + | +++ error[E0509]: cannot move out of type `S`, which implements the `Drop` trait - --> $DIR/borrowck-move-out-of-struct-with-dtor.rs:18:19 + --> $DIR/borrowck-move-out-of-struct-with-dtor.rs:20:19 | LL | fn move_in_fn_arg(S {f:_s}: S) { | ^^^^^--^ @@ -28,6 +38,11 @@ LL | fn move_in_fn_arg(S {f:_s}: S) { | | data moved here | | move occurs because `_s` has type `String`, which does not implement the `Copy` trait | cannot move out of here + | +help: consider borrowing the pattern binding + | +LL | fn move_in_fn_arg(S {f:ref _s}: S) { + | +++ error: aborting due to 3 previous errors diff --git a/src/test/ui/borrowck/borrowck-move-out-of-tuple-struct-with-dtor.fixed b/src/test/ui/borrowck/borrowck-move-out-of-tuple-struct-with-dtor.fixed new file mode 100644 index 00000000000..bc2ddf85fb4 --- /dev/null +++ b/src/test/ui/borrowck/borrowck-move-out-of-tuple-struct-with-dtor.fixed @@ -0,0 +1,24 @@ +// run-rustfix +#![allow(unused)] +struct S(String); +impl Drop for S { + fn drop(&mut self) { } +} + +fn move_in_match() { + match S("foo".to_string()) { + //~^ ERROR cannot move out of type `S`, which implements the `Drop` trait + S(ref _s) => {} + } +} + +fn move_in_let() { + let S(ref _s) = S("foo".to_string()); + //~^ ERROR cannot move out of type `S`, which implements the `Drop` trait +} + +fn move_in_fn_arg(S(ref _s): S) { + //~^ ERROR cannot move out of type `S`, which implements the `Drop` trait +} + +fn main() {} diff --git a/src/test/ui/borrowck/borrowck-move-out-of-tuple-struct-with-dtor.rs b/src/test/ui/borrowck/borrowck-move-out-of-tuple-struct-with-dtor.rs index 5bd32f82ebc..f050bce8740 100644 --- a/src/test/ui/borrowck/borrowck-move-out-of-tuple-struct-with-dtor.rs +++ b/src/test/ui/borrowck/borrowck-move-out-of-tuple-struct-with-dtor.rs @@ -1,3 +1,5 @@ +// run-rustfix +#![allow(unused)] struct S(String); impl Drop for S { fn drop(&mut self) { } diff --git a/src/test/ui/borrowck/borrowck-move-out-of-tuple-struct-with-dtor.stderr b/src/test/ui/borrowck/borrowck-move-out-of-tuple-struct-with-dtor.stderr index f00181b7468..160a1f99f63 100644 --- a/src/test/ui/borrowck/borrowck-move-out-of-tuple-struct-with-dtor.stderr +++ b/src/test/ui/borrowck/borrowck-move-out-of-tuple-struct-with-dtor.stderr @@ -1,5 +1,5 @@ error[E0509]: cannot move out of type `S`, which implements the `Drop` trait - --> $DIR/borrowck-move-out-of-tuple-struct-with-dtor.rs:7:11 + --> $DIR/borrowck-move-out-of-tuple-struct-with-dtor.rs:9:11 | LL | match S("foo".to_string()) { | ^^^^^^^^^^^^^^^^^^^^ cannot move out of here @@ -9,18 +9,28 @@ LL | S(_s) => {} | | | data moved here | move occurs because `_s` has type `String`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | S(ref _s) => {} + | +++ error[E0509]: cannot move out of type `S`, which implements the `Drop` trait - --> $DIR/borrowck-move-out-of-tuple-struct-with-dtor.rs:14:17 + --> $DIR/borrowck-move-out-of-tuple-struct-with-dtor.rs:16:17 | LL | let S(_s) = S("foo".to_string()); | -- ^^^^^^^^^^^^^^^^^^^^ cannot move out of here | | | data moved here | move occurs because `_s` has type `String`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | let S(ref _s) = S("foo".to_string()); + | +++ error[E0509]: cannot move out of type `S`, which implements the `Drop` trait - --> $DIR/borrowck-move-out-of-tuple-struct-with-dtor.rs:18:19 + --> $DIR/borrowck-move-out-of-tuple-struct-with-dtor.rs:20:19 | LL | fn move_in_fn_arg(S(_s): S) { | ^^--^ @@ -28,6 +38,11 @@ LL | fn move_in_fn_arg(S(_s): S) { | | data moved here | | move occurs because `_s` has type `String`, which does not implement the `Copy` trait | cannot move out of here + | +help: consider borrowing the pattern binding + | +LL | fn move_in_fn_arg(S(ref _s): S) { + | +++ error: aborting due to 3 previous errors diff --git a/src/test/ui/borrowck/borrowck-move-out-of-vec-tail.stderr b/src/test/ui/borrowck/borrowck-move-out-of-vec-tail.stderr index a865812cb4a..9ff20a1f46a 100644 --- a/src/test/ui/borrowck/borrowck-move-out-of-vec-tail.stderr +++ b/src/test/ui/borrowck/borrowck-move-out-of-vec-tail.stderr @@ -10,10 +10,10 @@ LL | Foo { string: b }] => { | - ...and here | = note: move occurs because these variables have types that don't implement the `Copy` trait -help: consider removing the `&` +help: consider removing the borrow | -LL ~ [Foo { string: a }, -LL ~ Foo { string: b }] => { +LL - &[Foo { string: a }, +LL + [Foo { string: a }, | error: aborting due to previous error diff --git a/src/test/ui/borrowck/borrowck-overloaded-index-move-from-vec.stderr b/src/test/ui/borrowck/borrowck-overloaded-index-move-from-vec.stderr index 2b4293b433e..f5f4817e9bf 100644 --- a/src/test/ui/borrowck/borrowck-overloaded-index-move-from-vec.stderr +++ b/src/test/ui/borrowck/borrowck-overloaded-index-move-from-vec.stderr @@ -2,10 +2,12 @@ error[E0507]: cannot move out of index of `MyVec<Box<i32>>` --> $DIR/borrowck-overloaded-index-move-from-vec.rs:20:15 | LL | let bad = v[0]; - | ^^^^ - | | - | move occurs because value has type `Box<i32>`, which does not implement the `Copy` trait - | help: consider borrowing here: `&v[0]` + | ^^^^ move occurs because value has type `Box<i32>`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | let bad = &v[0]; + | + error: aborting due to previous error diff --git a/src/test/ui/borrowck/borrowck-vec-pattern-nesting.rs b/src/test/ui/borrowck/borrowck-vec-pattern-nesting.rs index 8a9296c5978..0e9284a2cad 100644 --- a/src/test/ui/borrowck/borrowck-vec-pattern-nesting.rs +++ b/src/test/ui/borrowck/borrowck-vec-pattern-nesting.rs @@ -37,7 +37,7 @@ fn c() { &mut [_a, //~^ NOTE data moved here //~| NOTE move occurs because `_a` has type - //~| HELP consider removing the `&mut` + //~| HELP consider removing the mutable borrow .. ] => { } @@ -56,7 +56,7 @@ fn d() { //~^ ERROR cannot move out //~| NOTE cannot move out &mut [ - //~^ HELP consider removing the `&mut` + //~^ HELP consider removing the mutable borrow _b] => {} //~^ NOTE data moved here //~| NOTE move occurs because `_b` has type @@ -79,7 +79,7 @@ fn e() { //~^ NOTE data moved here //~| NOTE and here //~| NOTE and here - //~| HELP consider removing the `&mut` + //~| HELP consider removing the mutable borrow _ => {} } let a = vec[0]; //~ ERROR cannot move out diff --git a/src/test/ui/borrowck/borrowck-vec-pattern-nesting.stderr b/src/test/ui/borrowck/borrowck-vec-pattern-nesting.stderr index c3bcb7de65d..0dc5e64e4ff 100644 --- a/src/test/ui/borrowck/borrowck-vec-pattern-nesting.stderr +++ b/src/test/ui/borrowck/borrowck-vec-pattern-nesting.stderr @@ -34,14 +34,10 @@ LL | &mut [_a, | data moved here | move occurs because `_a` has type `Box<isize>`, which does not implement the `Copy` trait | -help: consider removing the `&mut` +help: consider removing the mutable borrow | -LL ~ [_a, -LL + -LL + -LL + -LL + .. -LL ~ ] => { +LL - &mut [_a, +LL + [_a, | error[E0508]: cannot move out of type `[Box<isize>]`, a non-copy slice @@ -52,7 +48,11 @@ LL | let a = vec[0]; | | | cannot move out of here | move occurs because `vec[_]` has type `Box<isize>`, which does not implement the `Copy` trait - | help: consider borrowing here: `&vec[0]` + | +help: consider borrowing here + | +LL | let a = &vec[0]; + | + error[E0508]: cannot move out of type `[Box<isize>]`, a non-copy slice --> $DIR/borrowck-vec-pattern-nesting.rs:55:11 @@ -66,11 +66,10 @@ LL | _b] => {} | data moved here | move occurs because `_b` has type `Box<isize>`, which does not implement the `Copy` trait | -help: consider removing the `&mut` +help: consider removing the mutable borrow | -LL ~ [ -LL + -LL ~ _b] => {} +LL - &mut [ +LL + [ | error[E0508]: cannot move out of type `[Box<isize>]`, a non-copy slice @@ -81,7 +80,11 @@ LL | let a = vec[0]; | | | cannot move out of here | move occurs because `vec[_]` has type `Box<isize>`, which does not implement the `Copy` trait - | help: consider borrowing here: `&vec[0]` + | +help: consider borrowing here + | +LL | let a = &vec[0]; + | + error[E0508]: cannot move out of type `[Box<isize>]`, a non-copy slice --> $DIR/borrowck-vec-pattern-nesting.rs:74:11 @@ -90,14 +93,17 @@ LL | match vec { | ^^^ cannot move out of here ... LL | &mut [_a, _b, _c] => {} - | ----------------- - | | | | | - | | | | ...and here - | | | ...and here - | | data moved here - | help: consider removing the `&mut`: `[_a, _b, _c]` + | -- -- -- ...and here + | | | + | | ...and here + | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider removing the mutable borrow + | +LL - &mut [_a, _b, _c] => {} +LL + [_a, _b, _c] => {} + | error[E0508]: cannot move out of type `[Box<isize>]`, a non-copy slice --> $DIR/borrowck-vec-pattern-nesting.rs:85:13 @@ -107,7 +113,11 @@ LL | let a = vec[0]; | | | cannot move out of here | move occurs because `vec[_]` has type `Box<isize>`, which does not implement the `Copy` trait - | help: consider borrowing here: `&vec[0]` + | +help: consider borrowing here + | +LL | let a = &vec[0]; + | + error: aborting due to 8 previous errors diff --git a/src/test/ui/borrowck/issue-104639-lifetime-order.rs b/src/test/ui/borrowck/issue-104639-lifetime-order.rs new file mode 100644 index 00000000000..db1f8f8d588 --- /dev/null +++ b/src/test/ui/borrowck/issue-104639-lifetime-order.rs @@ -0,0 +1,10 @@ +// edition:2018 +// check-pass + +#![allow(dead_code)] +async fn fail<'a, 'b, 'c>(_: &'static str) where 'a: 'c, 'b: 'c, {} +async fn pass<'a, 'c, 'b>(_: &'static str) where 'a: 'c, 'b: 'c, {} +async fn pass2<'a, 'b, 'c>(_: &'static str) where 'a: 'c, 'b: 'c, 'c: 'a, {} +async fn pass3<'a, 'b, 'c>(_: &'static str) where 'a: 'b, 'b: 'c, 'c: 'a, {} + +fn main() { } diff --git a/src/test/ui/borrowck/issue-17718-static-move.stderr b/src/test/ui/borrowck/issue-17718-static-move.stderr index 984534bfb8b..65aea5b1834 100644 --- a/src/test/ui/borrowck/issue-17718-static-move.stderr +++ b/src/test/ui/borrowck/issue-17718-static-move.stderr @@ -2,10 +2,12 @@ error[E0507]: cannot move out of static item `FOO` --> $DIR/issue-17718-static-move.rs:6:14 | LL | let _a = FOO; - | ^^^ - | | - | move occurs because `FOO` has type `Foo`, which does not implement the `Copy` trait - | help: consider borrowing here: `&FOO` + | ^^^ move occurs because `FOO` has type `Foo`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | let _a = &FOO; + | + error: aborting due to previous error diff --git a/src/test/ui/borrowck/issue-20801.stderr b/src/test/ui/borrowck/issue-20801.stderr index d276231dc0c..215bf010063 100644 --- a/src/test/ui/borrowck/issue-20801.stderr +++ b/src/test/ui/borrowck/issue-20801.stderr @@ -2,37 +2,49 @@ error[E0507]: cannot move out of a mutable reference --> $DIR/issue-20801.rs:26:22 | LL | let a = unsafe { *mut_ref() }; - | ^^^^^^^^^^ - | | - | move occurs because value has type `T`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*mut_ref()` + | ^^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let a = unsafe { *mut_ref() }; +LL + let a = unsafe { mut_ref() }; + | error[E0507]: cannot move out of a shared reference --> $DIR/issue-20801.rs:29:22 | LL | let b = unsafe { *imm_ref() }; - | ^^^^^^^^^^ - | | - | move occurs because value has type `T`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*imm_ref()` + | ^^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let b = unsafe { *imm_ref() }; +LL + let b = unsafe { imm_ref() }; + | error[E0507]: cannot move out of a raw pointer --> $DIR/issue-20801.rs:32:22 | LL | let c = unsafe { *mut_ptr() }; - | ^^^^^^^^^^ - | | - | move occurs because value has type `T`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*mut_ptr()` + | ^^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let c = unsafe { *mut_ptr() }; +LL + let c = unsafe { mut_ptr() }; + | error[E0507]: cannot move out of a raw pointer --> $DIR/issue-20801.rs:35:22 | LL | let d = unsafe { *const_ptr() }; - | ^^^^^^^^^^^^ - | | - | move occurs because value has type `T`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*const_ptr()` + | ^^^^^^^^^^^^ move occurs because value has type `T`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let d = unsafe { *const_ptr() }; +LL + let d = unsafe { const_ptr() }; + | error: aborting due to 4 previous errors diff --git a/src/test/ui/borrowck/issue-47215-ice-from-drop-elab.stderr b/src/test/ui/borrowck/issue-47215-ice-from-drop-elab.stderr index eb41af1cea8..8d4918867f7 100644 --- a/src/test/ui/borrowck/issue-47215-ice-from-drop-elab.stderr +++ b/src/test/ui/borrowck/issue-47215-ice-from-drop-elab.stderr @@ -2,10 +2,12 @@ error[E0507]: cannot move out of static item `X` --> $DIR/issue-47215-ice-from-drop-elab.rs:17:21 | LL | let mut x = X; - | ^ - | | - | move occurs because `X` has type `AtomicUsize`, which does not implement the `Copy` trait - | help: consider borrowing here: `&X` + | ^ move occurs because `X` has type `AtomicUsize`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | let mut x = &X; + | + error: aborting due to previous error diff --git a/src/test/ui/borrowck/issue-51301.stderr b/src/test/ui/borrowck/issue-51301.stderr index f3decf7a991..6ec920cb81f 100644 --- a/src/test/ui/borrowck/issue-51301.stderr +++ b/src/test/ui/borrowck/issue-51301.stderr @@ -6,6 +6,11 @@ LL | .find(|(&event_type, _)| event == event_type) | | | data moved here | move occurs because `event_type` has type `EventType`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | .find(|(&ref event_type, _)| event == event_type) + | +++ error: aborting due to previous error diff --git a/src/test/ui/borrowck/issue-51415.fixed b/src/test/ui/borrowck/issue-51415.fixed new file mode 100644 index 00000000000..92943f6c9ec --- /dev/null +++ b/src/test/ui/borrowck/issue-51415.fixed @@ -0,0 +1,12 @@ +// run-rustfix +// Regression test for #51415: match default bindings were failing to +// see the "move out" implied by `&s` below. + +fn main() { + let a = vec![String::from("a")]; + let opt = a.iter().enumerate().find(|(_, &ref s)| { + //~^ ERROR cannot move out + *s == String::from("d") + }).map(|(i, _)| i); + println!("{:?}", opt); +} diff --git a/src/test/ui/borrowck/issue-51415.rs b/src/test/ui/borrowck/issue-51415.rs index f031308fb78..56ed57a61a0 100644 --- a/src/test/ui/borrowck/issue-51415.rs +++ b/src/test/ui/borrowck/issue-51415.rs @@ -1,3 +1,4 @@ +// run-rustfix // Regression test for #51415: match default bindings were failing to // see the "move out" implied by `&s` below. diff --git a/src/test/ui/borrowck/issue-51415.stderr b/src/test/ui/borrowck/issue-51415.stderr index a88819efcf7..0d486b45592 100644 --- a/src/test/ui/borrowck/issue-51415.stderr +++ b/src/test/ui/borrowck/issue-51415.stderr @@ -1,11 +1,16 @@ error[E0507]: cannot move out of a shared reference - --> $DIR/issue-51415.rs:6:42 + --> $DIR/issue-51415.rs:7:42 | LL | let opt = a.iter().enumerate().find(|(_, &s)| { | ^^^^^-^ | | | data moved here | move occurs because `s` has type `String`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | let opt = a.iter().enumerate().find(|(_, &ref s)| { + | +++ error: aborting due to previous error diff --git a/src/test/ui/borrowck/issue-54597-reject-move-out-of-borrow-via-pat.stderr b/src/test/ui/borrowck/issue-54597-reject-move-out-of-borrow-via-pat.stderr index 1f9cbdb7342..99c63e4db50 100644 --- a/src/test/ui/borrowck/issue-54597-reject-move-out-of-borrow-via-pat.stderr +++ b/src/test/ui/borrowck/issue-54597-reject-move-out-of-borrow-via-pat.stderr @@ -2,10 +2,13 @@ error[E0507]: cannot move out of `*array` which is behind a shared reference --> $DIR/issue-54597-reject-move-out-of-borrow-via-pat.rs:14:13 | LL | *array - | ^^^^^^ - | | - | move occurs because `*array` has type `Vec<Value>`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*array` + | ^^^^^^ move occurs because `*array` has type `Vec<Value>`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - *array +LL + array + | error: aborting due to previous error diff --git a/src/test/ui/borrowck/issue-83760.stderr b/src/test/ui/borrowck/issue-83760.stderr index 2552fff860c..a585bff0c65 100644 --- a/src/test/ui/borrowck/issue-83760.stderr +++ b/src/test/ui/borrowck/issue-83760.stderr @@ -27,11 +27,8 @@ LL | foo = Some(Struct); LL | let _y = foo; | ^^^ value used here after move | -note: this function takes ownership of the receiver `self`, which moves `foo` +note: `Option::<T>::unwrap` takes ownership of the receiver `self`, which moves `foo` --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | pub const fn unwrap(self) -> T { - | ^^^^ error[E0382]: use of moved value: `foo` --> $DIR/issue-83760.rs:37:14 @@ -55,11 +52,8 @@ LL | foo = Some(Struct); LL | } else if true { LL | foo = Some(Struct); | ^^^^^^^^^^^^^^^^^^ -note: this function takes ownership of the receiver `self`, which moves `foo` +note: `Option::<T>::unwrap` takes ownership of the receiver `self`, which moves `foo` --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | pub const fn unwrap(self) -> T { - | ^^^^ error: aborting due to 3 previous errors diff --git a/src/test/ui/borrowck/issue-87456-point-to-closure.stderr b/src/test/ui/borrowck/issue-87456-point-to-closure.stderr index 039575a8d79..afd141125ac 100644 --- a/src/test/ui/borrowck/issue-87456-point-to-closure.stderr +++ b/src/test/ui/borrowck/issue-87456-point-to-closure.stderr @@ -8,10 +8,12 @@ LL | take_mut(|| { | -- captured by this `FnMut` closure LL | LL | let _foo: String = val; - | ^^^ - | | - | move occurs because `val` has type `String`, which does not implement the `Copy` trait - | help: consider borrowing here: `&val` + | ^^^ move occurs because `val` has type `String`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | let _foo: String = &val; + | + error: aborting due to previous error diff --git a/src/test/ui/borrowck/move-error-snippets.stderr b/src/test/ui/borrowck/move-error-snippets.stderr index 984981ce2ea..8ac711e9e59 100644 --- a/src/test/ui/borrowck/move-error-snippets.stderr +++ b/src/test/ui/borrowck/move-error-snippets.stderr @@ -2,10 +2,7 @@ error[E0507]: cannot move out of static item `D` --> $DIR/move-error-snippets-ext.rs:5:17 | LL | let a = $c; - | ^^ - | | - | move occurs because `D` has type `A`, which does not implement the `Copy` trait - | help: consider borrowing here: `&$c` + | ^^ move occurs because `D` has type `A`, which does not implement the `Copy` trait | ::: $DIR/move-error-snippets.rs:21:1 | @@ -13,6 +10,10 @@ LL | sss!(); | ------ in this macro invocation | = note: this error originates in the macro `aaa` which comes from the expansion of the macro `sss` (in Nightly builds, run with -Z macro-backtrace for more info) +help: consider borrowing here + | +LL | let a = &$c; + | + error: aborting due to previous error diff --git a/src/test/ui/borrowck/reborrow-sugg-move-then-borrow.stderr b/src/test/ui/borrowck/reborrow-sugg-move-then-borrow.stderr index 13a2005e2ef..ecd916a59fc 100644 --- a/src/test/ui/borrowck/reborrow-sugg-move-then-borrow.stderr +++ b/src/test/ui/borrowck/reborrow-sugg-move-then-borrow.stderr @@ -9,11 +9,8 @@ LL | LL | fill_segment(state); | ^^^^^ value borrowed here after move | -note: this function takes ownership of the receiver `self`, which moves `state` +note: `into_iter` takes ownership of the receiver `self`, which moves `state` --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | fn into_iter(self) -> Self::IntoIter; - | ^^^^ help: consider creating a fresh reborrow of `state` here | LL | for _ in &mut *state {} diff --git a/src/test/ui/borrowck/suggest-as-ref-on-mut-closure.stderr b/src/test/ui/borrowck/suggest-as-ref-on-mut-closure.stderr index b1af090aec2..4621d879351 100644 --- a/src/test/ui/borrowck/suggest-as-ref-on-mut-closure.stderr +++ b/src/test/ui/borrowck/suggest-as-ref-on-mut-closure.stderr @@ -8,11 +8,8 @@ LL | cb.map(|cb| cb()); | help: consider calling `.as_ref()` or `.as_mut()` to borrow the type's contents | move occurs because `*cb` has type `Option<&mut dyn FnMut()>`, which does not implement the `Copy` trait | -note: this function takes ownership of the receiver `self`, which moves `*cb` +note: `Option::<T>::map` takes ownership of the receiver `self`, which moves `*cb` --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | pub const fn map<U, F>(self, f: F) -> Option<U> - | ^^^^ error[E0596]: cannot borrow `*cb` as mutable, as it is behind a `&` reference --> $DIR/suggest-as-ref-on-mut-closure.rs:12:26 diff --git a/src/test/ui/borrowck/unboxed-closures-move-upvar-from-non-once-ref-closure.stderr b/src/test/ui/borrowck/unboxed-closures-move-upvar-from-non-once-ref-closure.stderr index 0c151b09707..b1367c65218 100644 --- a/src/test/ui/borrowck/unboxed-closures-move-upvar-from-non-once-ref-closure.stderr +++ b/src/test/ui/borrowck/unboxed-closures-move-upvar-from-non-once-ref-closure.stderr @@ -10,11 +10,8 @@ LL | y.into_iter(); | | | move occurs because `y` has type `Vec<String>`, which does not implement the `Copy` trait | -note: this function takes ownership of the receiver `self`, which moves `y` +note: `into_iter` takes ownership of the receiver `self`, which moves `y` --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | fn into_iter(self) -> Self::IntoIter; - | ^^^^ error: aborting due to previous error diff --git a/src/test/ui/box/into-boxed-slice-fail.stderr b/src/test/ui/box/into-boxed-slice-fail.stderr index de654fdc1a4..f102f666dc2 100644 --- a/src/test/ui/box/into-boxed-slice-fail.stderr +++ b/src/test/ui/box/into-boxed-slice-fail.stderr @@ -9,9 +9,6 @@ LL | let _ = Box::into_boxed_slice(boxed_slice); = help: the trait `Sized` is not implemented for `[u8]` note: required by a bound in `Box::<T, A>::into_boxed_slice` --> $SRC_DIR/alloc/src/boxed.rs:LL:COL - | -LL | impl<T, A: Allocator> Box<T, A> { - | ^ required by this bound in `Box::<T, A>::into_boxed_slice` error[E0277]: the size for values of type `[u8]` cannot be known at compilation time --> $DIR/into-boxed-slice-fail.rs:7:13 @@ -33,9 +30,6 @@ LL | let _ = Box::into_boxed_slice(boxed_trait); = help: the trait `Sized` is not implemented for `dyn Debug` note: required by a bound in `Box::<T, A>::into_boxed_slice` --> $SRC_DIR/alloc/src/boxed.rs:LL:COL - | -LL | impl<T, A: Allocator> Box<T, A> { - | ^ required by this bound in `Box::<T, A>::into_boxed_slice` error[E0277]: the size for values of type `dyn Debug` cannot be known at compilation time --> $DIR/into-boxed-slice-fail.rs:11:13 diff --git a/src/test/ui/by-move-pattern-binding.rs b/src/test/ui/by-move-pattern-binding.rs index d4c9f23164f..f68d181291d 100644 --- a/src/test/ui/by-move-pattern-binding.rs +++ b/src/test/ui/by-move-pattern-binding.rs @@ -19,4 +19,11 @@ fn main() { &E::Foo => {} &E::Bar(ref identifier) => println!("{}", *identifier) }; + if let &E::Bar(identifier) = &s.x { //~ ERROR cannot move + f(identifier.clone()); + }; + let &E::Bar(identifier) = &s.x else { //~ ERROR cannot move + return; + }; + f(identifier.clone()); } diff --git a/src/test/ui/by-move-pattern-binding.stderr b/src/test/ui/by-move-pattern-binding.stderr index 0012f67cfa1..203e37dc387 100644 --- a/src/test/ui/by-move-pattern-binding.stderr +++ b/src/test/ui/by-move-pattern-binding.stderr @@ -5,12 +5,47 @@ LL | match &s.x { | ^^^^ LL | &E::Foo => {} LL | &E::Bar(identifier) => f(identifier.clone()) - | ------------------- - | | | - | | data moved here - | | move occurs because `identifier` has type `String`, which does not implement the `Copy` trait - | help: consider removing the `&`: `E::Bar(identifier)` + | ---------- + | | + | data moved here + | move occurs because `identifier` has type `String`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - &E::Bar(identifier) => f(identifier.clone()) +LL + E::Bar(identifier) => f(identifier.clone()) + | + +error[E0507]: cannot move out of a shared reference + --> $DIR/by-move-pattern-binding.rs:22:34 + | +LL | if let &E::Bar(identifier) = &s.x { + | ---------- ^^^^ + | | + | data moved here + | move occurs because `identifier` has type `String`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - if let &E::Bar(identifier) = &s.x { +LL + if let E::Bar(identifier) = &s.x { + | + +error[E0507]: cannot move out of a shared reference + --> $DIR/by-move-pattern-binding.rs:25:31 + | +LL | let &E::Bar(identifier) = &s.x else { + | ---------- ^^^^ + | | + | data moved here + | move occurs because `identifier` has type `String`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - let &E::Bar(identifier) = &s.x else { +LL + let E::Bar(identifier) = &s.x else { + | -error: aborting due to previous error +error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0507`. diff --git a/src/test/ui/c-variadic/issue-86053-1.stderr b/src/test/ui/c-variadic/issue-86053-1.stderr index 075bd1fc488..d1f13d52362 100644 --- a/src/test/ui/c-variadic/issue-86053-1.stderr +++ b/src/test/ui/c-variadic/issue-86053-1.stderr @@ -63,11 +63,9 @@ error[E0412]: cannot find type `F` in this scope | LL | self , ... , self , self , ... ) where F : FnOnce ( & 'a & 'b usize ) { | ^ + --> $SRC_DIR/core/src/ops/function.rs:LL:COL | - ::: $SRC_DIR/core/src/ops/function.rs:LL:COL - | -LL | pub trait Fn<Args: Tuple>: FnMut<Args> { - | -------------------------------------- similarly named trait `Fn` defined here + = note: similarly named trait `Fn` defined here | help: a trait with a similar name exists | diff --git a/src/test/ui/chalkify/bugs/async.stderr b/src/test/ui/chalkify/bugs/async.stderr index 4804df13340..eda867f4159 100644 --- a/src/test/ui/chalkify/bugs/async.stderr +++ b/src/test/ui/chalkify/bugs/async.stderr @@ -14,9 +14,6 @@ LL | | } = note: [async fn body@$DIR/async.rs:7:29: 9:2] must be a future or must implement `IntoFuture` to be awaited note: required by a bound in `identity_future` --> $SRC_DIR/core/src/future/mod.rs:LL:COL - | -LL | pub const fn identity_future<O, Fut: Future<Output = O>>(f: Fut) -> Fut { - | ^^^^^^^^^^^^^^^^^^ required by this bound in `identity_future` error[E0277]: the size for values of type `<[async fn body@$DIR/async.rs:7:29: 9:2] as Future>::Output` cannot be known at compilation time --> $DIR/async.rs:7:29 @@ -30,9 +27,6 @@ LL | | } = help: the trait `Sized` is not implemented for `<[async fn body@$DIR/async.rs:7:29: 9:2] as Future>::Output` note: required by a bound in `identity_future` --> $SRC_DIR/core/src/future/mod.rs:LL:COL - | -LL | pub const fn identity_future<O, Fut: Future<Output = O>>(f: Fut) -> Fut { - | ^ required by this bound in `identity_future` error[E0277]: `[async fn body@$DIR/async.rs:7:29: 9:2]` is not a future --> $DIR/async.rs:7:25 diff --git a/src/test/ui/check-static-values-constraints.stderr b/src/test/ui/check-static-values-constraints.stderr index 31939f7f6db..b13700a4ea5 100644 --- a/src/test/ui/check-static-values-constraints.stderr +++ b/src/test/ui/check-static-values-constraints.stderr @@ -58,10 +58,12 @@ error[E0507]: cannot move out of static item `x` --> $DIR/check-static-values-constraints.rs:110:45 | LL | let y = { static x: Box<isize> = box 3; x }; - | ^ - | | - | move occurs because `x` has type `Box<isize>`, which does not implement the `Copy` trait - | help: consider borrowing here: `&x` + | ^ move occurs because `x` has type `Box<isize>`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | let y = { static x: Box<isize> = box 3; &x }; + | + error[E0010]: allocations are not allowed in statics --> $DIR/check-static-values-constraints.rs:110:38 diff --git a/src/test/ui/closure-expected-type/expect-two-infer-vars-supply-ty-with-bound-region.stderr b/src/test/ui/closure-expected-type/expect-two-infer-vars-supply-ty-with-bound-region.stderr index d5432755cfe..7a04ed7381e 100644 --- a/src/test/ui/closure-expected-type/expect-two-infer-vars-supply-ty-with-bound-region.stderr +++ b/src/test/ui/closure-expected-type/expect-two-infer-vars-supply-ty-with-bound-region.stderr @@ -6,8 +6,8 @@ LL | with_closure(|x: u32, y| {}); | help: consider giving this closure parameter an explicit type | -LL | with_closure(|x: u32, y: _| {}); - | +++ +LL | with_closure(|x: u32, y: /* Type */| {}); + | ++++++++++++ error: aborting due to previous error diff --git a/src/test/ui/closures/closure-expected.stderr b/src/test/ui/closures/closure-expected.stderr index 7ffe3c1ef95..87a5d67a420 100644 --- a/src/test/ui/closures/closure-expected.stderr +++ b/src/test/ui/closures/closure-expected.stderr @@ -10,9 +10,6 @@ LL | let y = x.or_else(4); = note: wrap the `{integer}` in a closure with no arguments: `|| { /* code */ }` note: required by a bound in `Option::<T>::or_else` --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | F: ~const FnOnce() -> Option<T>, - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Option::<T>::or_else` error: aborting due to previous error diff --git a/src/test/ui/closures/closure-move-sync.stderr b/src/test/ui/closures/closure-move-sync.stderr index a2ca06b4e6e..64e3b51ea71 100644 --- a/src/test/ui/closures/closure-move-sync.stderr +++ b/src/test/ui/closures/closure-move-sync.stderr @@ -19,9 +19,6 @@ LL | let t = thread::spawn(|| { | ^^ note: required by a bound in `spawn` --> $SRC_DIR/std/src/thread/mod.rs:LL:COL - | -LL | F: Send + 'static, - | ^^^^ required by this bound in `spawn` error[E0277]: `Sender<()>` cannot be shared between threads safely --> $DIR/closure-move-sync.rs:18:19 @@ -40,9 +37,6 @@ LL | thread::spawn(|| tx.send(()).unwrap()); | ^^ note: required by a bound in `spawn` --> $SRC_DIR/std/src/thread/mod.rs:LL:COL - | -LL | F: Send + 'static, - | ^^^^ required by this bound in `spawn` error: aborting due to 2 previous errors diff --git a/src/test/ui/closures/coerce-unsafe-to-closure.stderr b/src/test/ui/closures/coerce-unsafe-to-closure.stderr index 6ce63e829b3..449cd0b3177 100644 --- a/src/test/ui/closures/coerce-unsafe-to-closure.stderr +++ b/src/test/ui/closures/coerce-unsafe-to-closure.stderr @@ -10,9 +10,6 @@ LL | let x: Option<&[u8]> = Some("foo").map(std::mem::transmute); = note: unsafe function cannot be called generically without an unsafe block note: required by a bound in `Option::<T>::map` --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | F: ~const FnOnce(T) -> U, - | ^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Option::<T>::map` error: aborting due to previous error diff --git a/src/test/ui/closures/issue-52437.stderr b/src/test/ui/closures/issue-52437.stderr index 4c24a54bbbe..9ba24c7a886 100644 --- a/src/test/ui/closures/issue-52437.stderr +++ b/src/test/ui/closures/issue-52437.stderr @@ -12,8 +12,8 @@ LL | [(); &(&'static: loop { |x| {}; }) as *const _ as usize] | help: consider giving this closure parameter an explicit type | -LL | [(); &(&'static: loop { |x: _| {}; }) as *const _ as usize] - | +++ +LL | [(); &(&'static: loop { |x: /* Type */| {}; }) as *const _ as usize] + | ++++++++++++ error: aborting due to 2 previous errors diff --git a/src/test/ui/closures/issue-78720.stderr b/src/test/ui/closures/issue-78720.stderr index da3f539a007..1e860d32b2a 100644 --- a/src/test/ui/closures/issue-78720.stderr +++ b/src/test/ui/closures/issue-78720.stderr @@ -9,11 +9,9 @@ error[E0412]: cannot find type `F` in this scope | LL | _func: F, | ^ + --> $SRC_DIR/core/src/ops/function.rs:LL:COL | - ::: $SRC_DIR/core/src/ops/function.rs:LL:COL - | -LL | pub trait Fn<Args: Tuple>: FnMut<Args> { - | -------------------------------------- similarly named trait `Fn` defined here + = note: similarly named trait `Fn` defined here | help: a trait with a similar name exists | diff --git a/src/test/ui/closures/issue-87461.stderr b/src/test/ui/closures/issue-87461.stderr index 0e788a16eb0..72337892734 100644 --- a/src/test/ui/closures/issue-87461.stderr +++ b/src/test/ui/closures/issue-87461.stderr @@ -8,9 +8,6 @@ LL | Ok(()) | note: tuple variant defined here --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | Ok(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^ error[E0308]: mismatched types --> $DIR/issue-87461.rs:17:8 @@ -22,9 +19,6 @@ LL | Ok(()) | note: tuple variant defined here --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | Ok(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^ error[E0308]: mismatched types --> $DIR/issue-87461.rs:26:12 @@ -36,9 +30,6 @@ LL | Ok(()) | note: tuple variant defined here --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | Ok(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^ error: aborting due to 3 previous errors diff --git a/src/test/ui/closures/issue-90871.stderr b/src/test/ui/closures/issue-90871.stderr index a482750fbd0..4a578b4d7f5 100644 --- a/src/test/ui/closures/issue-90871.stderr +++ b/src/test/ui/closures/issue-90871.stderr @@ -3,11 +3,9 @@ error[E0412]: cannot find type `n` in this scope | LL | type_ascribe!(2, n([u8; || 1])) | ^ help: a trait with a similar name exists: `Fn` + --> $SRC_DIR/core/src/ops/function.rs:LL:COL | - ::: $SRC_DIR/core/src/ops/function.rs:LL:COL - | -LL | pub trait Fn<Args: Tuple>: FnMut<Args> { - | -------------------------------------- similarly named trait `Fn` defined here + = note: similarly named trait `Fn` defined here error[E0308]: mismatched types --> $DIR/issue-90871.rs:4:29 diff --git a/src/test/ui/closures/multiple-fn-bounds.stderr b/src/test/ui/closures/multiple-fn-bounds.stderr index eefc123fed7..da26302c9d8 100644 --- a/src/test/ui/closures/multiple-fn-bounds.stderr +++ b/src/test/ui/closures/multiple-fn-bounds.stderr @@ -2,8 +2,10 @@ error[E0631]: type mismatch in closure arguments --> $DIR/multiple-fn-bounds.rs:10:5 | LL | foo(move |x| v); - | ^^^ -------- found signature defined here - | | + | ^^^ -------- + | | | | + | | | help: do not borrow the argument: `char` + | | found signature defined here | expected due to this | = note: expected closure signature `fn(char) -> _` diff --git a/src/test/ui/codegen/issue-55976.rs b/src/test/ui/codegen/issue-55976.rs new file mode 100644 index 00000000000..3142704b78c --- /dev/null +++ b/src/test/ui/codegen/issue-55976.rs @@ -0,0 +1,13 @@ +// run-pass +// ^-- The above is needed as this issue is related to LLVM/codegen. +// min-llvm-version:15.0.0 +// ^-- The above is needed as this issue is fixed by the opaque pointers. + +fn main() { + type_error(|x| &x); +} + +fn type_error<T>( + _selector: for<'a> fn(&'a Vec<Box<dyn for<'b> Fn(&'b u8)>>) -> &'a Vec<Box<dyn Fn(T)>>, +) { +} diff --git a/src/test/ui/codemap_tests/tab_3.stderr b/src/test/ui/codemap_tests/tab_3.stderr index 080f6c39449..e0e369124a4 100644 --- a/src/test/ui/codemap_tests/tab_3.stderr +++ b/src/test/ui/codemap_tests/tab_3.stderr @@ -9,11 +9,8 @@ LL | { LL | println!("{:?}", some_vec); | ^^^^^^^^ value borrowed here after move | -note: this function takes ownership of the receiver `self`, which moves `some_vec` +note: `into_iter` takes ownership of the receiver `self`, which moves `some_vec` --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | fn into_iter(self) -> Self::IntoIter; - | ^^^^ = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider cloning the value if the performance cost is acceptable | diff --git a/src/test/ui/confuse-field-and-method/issue-33784.stderr b/src/test/ui/confuse-field-and-method/issue-33784.stderr index 34debb68317..3906d64c946 100644 --- a/src/test/ui/confuse-field-and-method/issue-33784.stderr +++ b/src/test/ui/confuse-field-and-method/issue-33784.stderr @@ -1,4 +1,4 @@ -error[E0599]: no method named `closure` found for reference `&Obj<[closure@$DIR/issue-33784.rs:25:43: 25:45]>` in the current scope +error[E0599]: no method named `closure` found for reference `&Obj<[closure@issue-33784.rs:25:43]>` in the current scope --> $DIR/issue-33784.rs:27:7 | LL | p.closure(); @@ -9,7 +9,7 @@ help: to call the function stored in `closure`, surround the field access with p LL | (p.closure)(); | + + -error[E0599]: no method named `fn_ptr` found for reference `&&Obj<[closure@$DIR/issue-33784.rs:25:43: 25:45]>` in the current scope +error[E0599]: no method named `fn_ptr` found for reference `&&Obj<[closure@issue-33784.rs:25:43]>` in the current scope --> $DIR/issue-33784.rs:29:7 | LL | q.fn_ptr(); diff --git a/src/test/ui/const-generics/defaults/complex-unord-param.min.stderr b/src/test/ui/const-generics/defaults/complex-unord-param.min.stderr deleted file mode 100644 index 8e8d26a0004..00000000000 --- a/src/test/ui/const-generics/defaults/complex-unord-param.min.stderr +++ /dev/null @@ -1,8 +0,0 @@ -error: type parameters must be declared prior to const parameters - --> $DIR/complex-unord-param.rs:8:41 - | -LL | struct NestedArrays<'a, const N: usize, A: 'a, const M: usize, T:'a =u32> { - | ---------------------^----------------------^--------- help: reorder the parameters: lifetimes, then types, then consts: `<'a, A: 'a, T: 'a = u32, const N: usize, const M: usize>` - -error: aborting due to previous error - diff --git a/src/test/ui/const-generics/generic_arg_infer/issue-91614.stderr b/src/test/ui/const-generics/generic_arg_infer/issue-91614.stderr index 688db695fa8..13ea4a295af 100644 --- a/src/test/ui/const-generics/generic_arg_infer/issue-91614.stderr +++ b/src/test/ui/const-generics/generic_arg_infer/issue-91614.stderr @@ -5,11 +5,14 @@ LL | let y = Mask::<_, _>::splat(false); | ^ ------------------- type must be known at this point | = note: cannot satisfy `_: MaskElement` + = help: the following types implement trait `MaskElement`: + i16 + i32 + i64 + i8 + isize note: required by a bound in `Mask::<T, LANES>::splat` --> $SRC_DIR/core/src/../../portable-simd/crates/core_simd/src/masks.rs:LL:COL - | -LL | T: MaskElement, - | ^^^^^^^^^^^ required by this bound in `Mask::<T, LANES>::splat` help: consider giving `y` an explicit type, where the type for type parameter `T` is specified | LL | let y: Mask<_, LANES> = Mask::<_, _>::splat(false); diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-105608.rs b/src/test/ui/const-generics/generic_const_exprs/issue-105608.rs new file mode 100644 index 00000000000..e28ba3b1ada --- /dev/null +++ b/src/test/ui/const-generics/generic_const_exprs/issue-105608.rs @@ -0,0 +1,15 @@ +#![feature(generic_const_exprs)] +#![allow(incomplete_features)] + +struct Combination<const STRATEGIES: usize>; + +impl<const STRATEGIES: usize> Combination<STRATEGIES> { + fn and<M>(self) -> Combination<{ STRATEGIES + 1 }> { + Combination + } +} + +pub fn main() { + Combination::<0>.and::<_>().and::<_>(); + //~^ ERROR: type annotations needed +} diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-105608.stderr b/src/test/ui/const-generics/generic_const_exprs/issue-105608.stderr new file mode 100644 index 00000000000..0be4c43daac --- /dev/null +++ b/src/test/ui/const-generics/generic_const_exprs/issue-105608.stderr @@ -0,0 +1,14 @@ +error[E0282]: type annotations needed + --> $DIR/issue-105608.rs:13:22 + | +LL | Combination::<0>.and::<_>().and::<_>(); + | ^^^ cannot infer type of the type parameter `M` declared on the associated function `and` + | +help: consider specifying the generic argument + | +LL | Combination::<0>.and::<_>().and::<_>(); + | ~~~~~ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0282`. diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-72787.min.stderr b/src/test/ui/const-generics/generic_const_exprs/issue-72787.min.stderr index 4d0d0253f1b..0af5493f816 100644 --- a/src/test/ui/const-generics/generic_const_exprs/issue-72787.min.stderr +++ b/src/test/ui/const-generics/generic_const_exprs/issue-72787.min.stderr @@ -40,7 +40,17 @@ error[E0283]: type annotations needed: cannot satisfy `IsLessOrEqual<I, 8>: True LL | IsLessOrEqual<I, 8>: True, | ^^^^ | - = note: cannot satisfy `IsLessOrEqual<I, 8>: True` +note: multiple `impl`s or `where` clauses satisfying `IsLessOrEqual<I, 8>: True` found + --> $DIR/issue-72787.rs:10:1 + | +LL | impl<const LHS: u32, const RHS: u32> True for IsLessOrEqual<LHS, RHS> where + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +... +LL | IsLessOrEqual<I, 8>: True, + | ^^^^ +... +LL | IsLessOrEqual<{ 8 - I }, { 8 - J }>: True, + | ^^^^ error[E0283]: type annotations needed: cannot satisfy `IsLessOrEqual<I, 8>: True` --> $DIR/issue-72787.rs:21:26 @@ -48,7 +58,17 @@ error[E0283]: type annotations needed: cannot satisfy `IsLessOrEqual<I, 8>: True LL | IsLessOrEqual<I, 8>: True, | ^^^^ | - = note: cannot satisfy `IsLessOrEqual<I, 8>: True` +note: multiple `impl`s or `where` clauses satisfying `IsLessOrEqual<I, 8>: True` found + --> $DIR/issue-72787.rs:10:1 + | +LL | impl<const LHS: u32, const RHS: u32> True for IsLessOrEqual<LHS, RHS> where + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +... +LL | IsLessOrEqual<I, 8>: True, + | ^^^^ +... +LL | IsLessOrEqual<{ 8 - I }, { 8 - J }>: True, + | ^^^^ error: aborting due to 6 previous errors diff --git a/src/test/ui/const-generics/generic_const_exprs/issue-80742.stderr b/src/test/ui/const-generics/generic_const_exprs/issue-80742.stderr index bf1b411ee7c..a08c9912527 100644 --- a/src/test/ui/const-generics/generic_const_exprs/issue-80742.stderr +++ b/src/test/ui/const-generics/generic_const_exprs/issue-80742.stderr @@ -1,14 +1,10 @@ error[E0080]: evaluation of `Inline::<dyn std::fmt::Debug>::{constant#0}` failed --> $SRC_DIR/core/src/mem/mod.rs:LL:COL | -LL | intrinsics::size_of::<T>() - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ size_of called on unsized type `dyn Debug` + = note: size_of called on unsized type `dyn Debug` | note: inside `std::mem::size_of::<dyn Debug>` --> $SRC_DIR/core/src/mem/mod.rs:LL:COL - | -LL | intrinsics::size_of::<T>() - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `Inline::<dyn Debug>::{constant#0}` --> $DIR/issue-80742.rs:22:10 | @@ -23,11 +19,9 @@ LL | struct Inline<T> ... LL | let dst = Inline::<dyn Debug>::new(0); | ^^^ function or associated item cannot be called on `Inline<dyn Debug>` due to unsatisfied trait bounds + --> $SRC_DIR/core/src/fmt/mod.rs:LL:COL | - ::: $SRC_DIR/core/src/fmt/mod.rs:LL:COL - | -LL | pub trait Debug { - | --------------- doesn't satisfy `dyn Debug: Sized` + = note: doesn't satisfy `dyn Debug: Sized` | = note: the following trait bounds were not satisfied: `dyn Debug: Sized` @@ -35,14 +29,10 @@ LL | pub trait Debug { error[E0080]: evaluation of `Inline::<dyn std::fmt::Debug>::{constant#0}` failed --> $SRC_DIR/core/src/mem/mod.rs:LL:COL | -LL | intrinsics::size_of::<T>() - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ size_of called on unsized type `dyn Debug` + = note: size_of called on unsized type `dyn Debug` | note: inside `std::mem::size_of::<dyn Debug>` --> $SRC_DIR/core/src/mem/mod.rs:LL:COL - | -LL | intrinsics::size_of::<T>() - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `Inline::<dyn Debug>::{constant#0}` --> $DIR/issue-80742.rs:14:10 | diff --git a/src/test/ui/const-generics/invalid-const-arg-for-type-param.stderr b/src/test/ui/const-generics/invalid-const-arg-for-type-param.stderr index d955b4f9651..8c76ca69029 100644 --- a/src/test/ui/const-generics/invalid-const-arg-for-type-param.stderr +++ b/src/test/ui/const-generics/invalid-const-arg-for-type-param.stderr @@ -4,11 +4,6 @@ error[E0107]: this associated function takes 0 generic arguments but 1 generic a LL | let _: u32 = 5i32.try_into::<32>().unwrap(); | ^^^^^^^^ expected 0 generic arguments | -note: associated function defined here, with 0 generic parameters - --> $SRC_DIR/core/src/convert/mod.rs:LL:COL - | -LL | fn try_into(self) -> Result<T, Self::Error>; - | ^^^^^^^^ help: consider moving this generic argument to the `TryInto` trait, which takes up to 1 argument | LL | let _: u32 = TryInto::<32>::try_into(5i32).unwrap(); diff --git a/src/test/ui/const-generics/invalid-constant-in-args.stderr b/src/test/ui/const-generics/invalid-constant-in-args.stderr index 1400d2bf5a7..993b63518e4 100644 --- a/src/test/ui/const-generics/invalid-constant-in-args.stderr +++ b/src/test/ui/const-generics/invalid-constant-in-args.stderr @@ -5,12 +5,6 @@ LL | let _: Cell<&str, "a"> = Cell::new(""); | ^^^^ --- help: remove this generic argument | | | expected 1 generic argument - | -note: struct defined here, with 1 generic parameter: `T` - --> $SRC_DIR/core/src/cell.rs:LL:COL - | -LL | pub struct Cell<T: ?Sized> { - | ^^^^ - error: aborting due to previous error diff --git a/src/test/ui/const-generics/issue-105689.rs b/src/test/ui/const-generics/issue-105689.rs new file mode 100644 index 00000000000..4237b3cad8e --- /dev/null +++ b/src/test/ui/const-generics/issue-105689.rs @@ -0,0 +1,14 @@ +// check-pass +// edition:2021 +#![feature(generic_const_exprs)] +#![allow(incomplete_features)] + +#[allow(unused)] +async fn foo<'a>() { + let _data = &mut [0u8; { 1 + 4 }]; + bar().await +} + +async fn bar() {} + +fn main() {} diff --git a/src/test/ui/const-generics/issues/issue-83249.stderr b/src/test/ui/const-generics/issues/issue-83249.stderr index 362b8554b2f..7491fdc8a69 100644 --- a/src/test/ui/const-generics/issues/issue-83249.stderr +++ b/src/test/ui/const-generics/issues/issue-83249.stderr @@ -6,8 +6,8 @@ LL | let _ = foo([0; 1]); | help: consider giving this pattern a type | -LL | let _: _ = foo([0; 1]); - | +++ +LL | let _: /* Type */ = foo([0; 1]); + | ++++++++++++ error: aborting due to previous error diff --git a/src/test/ui/const-generics/type-after-const-ok.min.stderr b/src/test/ui/const-generics/type-after-const-ok.min.stderr deleted file mode 100644 index ad38754c741..00000000000 --- a/src/test/ui/const-generics/type-after-const-ok.min.stderr +++ /dev/null @@ -1,8 +0,0 @@ -error: type parameters must be declared prior to const parameters - --> $DIR/type-after-const-ok.rs:8:26 - | -LL | struct A<const N: usize, T>(T); - | -----------------^- help: reorder the parameters: lifetimes, then types, then consts: `<T, const N: usize>` - -error: aborting due to previous error - diff --git a/src/test/ui/const-ptr/forbidden_slices.32bit.stderr b/src/test/ui/const-ptr/forbidden_slices.32bit.stderr index 563f3ffd674..0079bb3aad6 100644 --- a/src/test/ui/const-ptr/forbidden_slices.32bit.stderr +++ b/src/test/ui/const-ptr/forbidden_slices.32bit.stderr @@ -1,14 +1,10 @@ error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/slice/raw.rs:LL:COL | -LL | &*ptr::slice_from_raw_parts(data, len) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ dereferencing pointer failed: null pointer is a dangling pointer (it has no provenance) + = note: dereferencing pointer failed: null pointer is a dangling pointer (it has no provenance) | note: inside `std::slice::from_raw_parts::<'_, u32>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL - | -LL | &*ptr::slice_from_raw_parts(data, len) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `S0` --> $DIR/forbidden_slices.rs:18:34 | @@ -18,14 +14,10 @@ LL | pub static S0: &[u32] = unsafe { from_raw_parts(ptr::null(), 0) }; error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/slice/raw.rs:LL:COL | -LL | &*ptr::slice_from_raw_parts(data, len) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ dereferencing pointer failed: null pointer is a dangling pointer (it has no provenance) + = note: dereferencing pointer failed: null pointer is a dangling pointer (it has no provenance) | note: inside `std::slice::from_raw_parts::<'_, ()>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL - | -LL | &*ptr::slice_from_raw_parts(data, len) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `S1` --> $DIR/forbidden_slices.rs:19:33 | @@ -35,14 +27,10 @@ LL | pub static S1: &[()] = unsafe { from_raw_parts(ptr::null(), 0) }; error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/slice/raw.rs:LL:COL | -LL | &*ptr::slice_from_raw_parts(data, len) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ dereferencing pointer failed: ALLOC_ID has size 4, so pointer to 8 bytes starting at offset 0 is out-of-bounds + = note: dereferencing pointer failed: allocN has size 4, so pointer to 8 bytes starting at offset 0 is out-of-bounds | note: inside `std::slice::from_raw_parts::<'_, u32>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL - | -LL | &*ptr::slice_from_raw_parts(data, len) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `S2` --> $DIR/forbidden_slices.rs:22:34 | @@ -57,7 +45,7 @@ LL | pub static S4: &[u8] = unsafe { from_raw_parts((&D1) as *const _ as _, 1) } | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾─ALLOC_ID─╼ 01 00 00 00 │ ╾──╼.... + ╾ALLOC_ID╼ 01 00 00 00 │ ╾──╼.... } error[E0080]: it is undefined behavior to use this value @@ -69,7 +57,7 @@ LL | pub static S5: &[u8] = unsafe { from_raw_parts((&D3) as *const _ as _, size = help: this code performed an operation that depends on the underlying bytes representing a pointer = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported = note: the raw bytes of the constant (size: 8, align: 4) { - ╾─ALLOC_ID─╼ 04 00 00 00 │ ╾──╼.... + ╾ALLOC_ID╼ 04 00 00 00 │ ╾──╼.... } error[E0080]: it is undefined behavior to use this value @@ -80,31 +68,27 @@ LL | pub static S6: &[bool] = unsafe { from_raw_parts((&D0) as *const _ as _, 4) | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾─ALLOC_ID─╼ 04 00 00 00 │ ╾──╼.... + ╾ALLOC_ID╼ 04 00 00 00 │ ╾──╼.... } error[E0080]: it is undefined behavior to use this value --> $DIR/forbidden_slices.rs:32:1 | LL | pub static S7: &[u16] = unsafe { - | ^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered an unaligned reference (required 2 byte alignment but found 1) + | ^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .<deref>[1]: encountered uninitialized bytes | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾─A_ID+0x1─╼ 04 00 00 00 │ ╾──╼.... + ╾ALLOC_ID+0x2╼ 04 00 00 00 │ ╾──╼.... } error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/slice/raw.rs:LL:COL | -LL | &*ptr::slice_from_raw_parts(data, len) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ dereferencing pointer failed: ALLOC_ID has size 8, so pointer to 8 bytes starting at offset 1 is out-of-bounds + = note: dereferencing pointer failed: allocN has size 8, so pointer to 8 bytes starting at offset 1 is out-of-bounds | note: inside `std::slice::from_raw_parts::<'_, u64>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL - | -LL | &*ptr::slice_from_raw_parts(data, len) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `S8` --> $DIR/forbidden_slices.rs:43:5 | @@ -114,19 +98,12 @@ LL | from_raw_parts(ptr, 1) error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::ptr_offset_from_unsigned(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: null pointer is a dangling pointer (it has no provenance) + = note: out-of-bounds offset_from: null pointer is a dangling pointer (it has no provenance) | note: inside `ptr::const_ptr::<impl *const u32>::sub_ptr` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::ptr_offset_from_unsigned(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `from_ptr_range::<'_, u32>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL - | -LL | unsafe { from_raw_parts(range.start, range.end.sub_ptr(range.start)) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `R0` --> $DIR/forbidden_slices.rs:46:34 | @@ -136,19 +113,12 @@ LL | pub static R0: &[u32] = unsafe { from_ptr_range(ptr::null()..ptr::null()) } error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | assert!(0 < pointee_size && pointee_size <= isize::MAX as usize); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'assertion failed: 0 < pointee_size && pointee_size <= isize::MAX as usize', $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL + = note: the evaluated program panicked at 'assertion failed: 0 < pointee_size && pointee_size <= isize::MAX as usize', $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | note: inside `ptr::const_ptr::<impl *const ()>::sub_ptr` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | assert!(0 < pointee_size && pointee_size <= isize::MAX as usize); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `from_ptr_range::<'_, ()>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL - | -LL | unsafe { from_raw_parts(range.start, range.end.sub_ptr(range.start)) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `R1` --> $DIR/forbidden_slices.rs:47:33 | @@ -159,19 +129,12 @@ LL | pub static R1: &[()] = unsafe { from_ptr_range(ptr::null()..ptr::null()) }; error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds pointer arithmetic: ALLOC_ID has size 4, so pointer to 8 bytes starting at offset 0 is out-of-bounds + = note: out-of-bounds pointer arithmetic: allocN has size 4, so pointer to 8 bytes starting at offset 0 is out-of-bounds | note: inside `ptr::const_ptr::<impl *const u32>::offset` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `ptr::const_ptr::<impl *const u32>::add` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { self.offset(count as isize) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `R2` --> $DIR/forbidden_slices.rs:50:25 | @@ -186,7 +149,7 @@ LL | pub static R4: &[u8] = unsafe { | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾ALLOC_ID─╼ 01 00 00 00 │ ╾──╼.... + ╾ALLOC_ID╼ 01 00 00 00 │ ╾──╼.... } error[E0080]: it is undefined behavior to use this value @@ -198,7 +161,7 @@ LL | pub static R5: &[u8] = unsafe { = help: this code performed an operation that depends on the underlying bytes representing a pointer = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported = note: the raw bytes of the constant (size: 8, align: 4) { - ╾ALLOC_ID─╼ 04 00 00 00 │ ╾──╼.... + ╾ALLOC_ID╼ 04 00 00 00 │ ╾──╼.... } error[E0080]: it is undefined behavior to use this value @@ -209,38 +172,35 @@ LL | pub static R6: &[bool] = unsafe { | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾ALLOC_ID─╼ 04 00 00 00 │ ╾──╼.... + ╾ALLOC_ID╼ 04 00 00 00 │ ╾──╼.... } -error[E0080]: it is undefined behavior to use this value - --> $DIR/forbidden_slices.rs:67:1 +error[E0080]: could not evaluate static initializer + --> $SRC_DIR/core/src/slice/raw.rs:LL:COL | -LL | pub static R7: &[u16] = unsafe { - | ^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered an unaligned reference (required 2 byte alignment but found 1) + = note: accessing memory with alignment 1, but alignment 2 is required | - = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. - = note: the raw bytes of the constant (size: 8, align: 4) { - ╾A_ID+0x1─╼ 04 00 00 00 │ ╾──╼.... - } +note: inside `std::slice::from_raw_parts::<'_, u16>` + --> $SRC_DIR/core/src/slice/raw.rs:LL:COL +note: inside `from_ptr_range::<'_, u16>` + --> $SRC_DIR/core/src/slice/raw.rs:LL:COL +note: inside `R7` + --> $DIR/forbidden_slices.rs:69:5 + | +LL | from_ptr_range(ptr..ptr.add(4)) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds pointer arithmetic: ALLOC_ID has size 8, so pointer to 8 bytes starting at offset 1 is out-of-bounds + = note: out-of-bounds pointer arithmetic: allocN has size 8, so pointer to 8 bytes starting at offset 1 is out-of-bounds | note: inside `ptr::const_ptr::<impl *const u64>::offset` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `ptr::const_ptr::<impl *const u64>::add` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { self.offset(count as isize) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `R8` - --> $DIR/forbidden_slices.rs:74:25 + --> $DIR/forbidden_slices.rs:73:25 | LL | from_ptr_range(ptr..ptr.add(1)) | ^^^^^^^^^^ @@ -248,21 +208,14 @@ LL | from_ptr_range(ptr..ptr.add(1)) error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::ptr_offset_from_unsigned(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from_unsigned` called on pointers into different allocations + = note: `ptr_offset_from_unsigned` called on pointers into different allocations | note: inside `ptr::const_ptr::<impl *const u32>::sub_ptr` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::ptr_offset_from_unsigned(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `from_ptr_range::<'_, u32>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL - | -LL | unsafe { from_raw_parts(range.start, range.end.sub_ptr(range.start)) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `R9` - --> $DIR/forbidden_slices.rs:79:34 + --> $DIR/forbidden_slices.rs:78:34 | LL | pub static R9: &[u32] = unsafe { from_ptr_range(&D0..(&D0 as *const u32).add(1)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -270,21 +223,14 @@ LL | pub static R9: &[u32] = unsafe { from_ptr_range(&D0..(&D0 as *const u32).ad error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::ptr_offset_from_unsigned(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from_unsigned` called on pointers into different allocations + = note: `ptr_offset_from_unsigned` called on pointers into different allocations | note: inside `ptr::const_ptr::<impl *const u32>::sub_ptr` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::ptr_offset_from_unsigned(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `from_ptr_range::<'_, u32>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL - | -LL | unsafe { from_raw_parts(range.start, range.end.sub_ptr(range.start)) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `R10` - --> $DIR/forbidden_slices.rs:80:35 + --> $DIR/forbidden_slices.rs:79:35 | LL | pub static R10: &[u32] = unsafe { from_ptr_range(&D0..&D0) }; | ^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/src/test/ui/const-ptr/forbidden_slices.64bit.stderr b/src/test/ui/const-ptr/forbidden_slices.64bit.stderr index 43529d57f40..f4f9fe69516 100644 --- a/src/test/ui/const-ptr/forbidden_slices.64bit.stderr +++ b/src/test/ui/const-ptr/forbidden_slices.64bit.stderr @@ -1,14 +1,10 @@ error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/slice/raw.rs:LL:COL | -LL | &*ptr::slice_from_raw_parts(data, len) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ dereferencing pointer failed: null pointer is a dangling pointer (it has no provenance) + = note: dereferencing pointer failed: null pointer is a dangling pointer (it has no provenance) | note: inside `std::slice::from_raw_parts::<'_, u32>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL - | -LL | &*ptr::slice_from_raw_parts(data, len) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `S0` --> $DIR/forbidden_slices.rs:18:34 | @@ -18,14 +14,10 @@ LL | pub static S0: &[u32] = unsafe { from_raw_parts(ptr::null(), 0) }; error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/slice/raw.rs:LL:COL | -LL | &*ptr::slice_from_raw_parts(data, len) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ dereferencing pointer failed: null pointer is a dangling pointer (it has no provenance) + = note: dereferencing pointer failed: null pointer is a dangling pointer (it has no provenance) | note: inside `std::slice::from_raw_parts::<'_, ()>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL - | -LL | &*ptr::slice_from_raw_parts(data, len) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `S1` --> $DIR/forbidden_slices.rs:19:33 | @@ -35,14 +27,10 @@ LL | pub static S1: &[()] = unsafe { from_raw_parts(ptr::null(), 0) }; error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/slice/raw.rs:LL:COL | -LL | &*ptr::slice_from_raw_parts(data, len) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ dereferencing pointer failed: ALLOC_ID has size 4, so pointer to 8 bytes starting at offset 0 is out-of-bounds + = note: dereferencing pointer failed: allocN has size 4, so pointer to 8 bytes starting at offset 0 is out-of-bounds | note: inside `std::slice::from_raw_parts::<'_, u32>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL - | -LL | &*ptr::slice_from_raw_parts(data, len) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `S2` --> $DIR/forbidden_slices.rs:22:34 | @@ -57,7 +45,7 @@ LL | pub static S4: &[u8] = unsafe { from_raw_parts((&D1) as *const _ as _, 1) } | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾───────ALLOC_ID───────╼ 01 00 00 00 00 00 00 00 │ ╾──────╼........ + ╾ALLOC_ID╼ 01 00 00 00 00 00 00 00 │ ╾──────╼........ } error[E0080]: it is undefined behavior to use this value @@ -69,7 +57,7 @@ LL | pub static S5: &[u8] = unsafe { from_raw_parts((&D3) as *const _ as _, size = help: this code performed an operation that depends on the underlying bytes representing a pointer = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported = note: the raw bytes of the constant (size: 16, align: 8) { - ╾───────ALLOC_ID───────╼ 08 00 00 00 00 00 00 00 │ ╾──────╼........ + ╾ALLOC_ID╼ 08 00 00 00 00 00 00 00 │ ╾──────╼........ } error[E0080]: it is undefined behavior to use this value @@ -80,31 +68,27 @@ LL | pub static S6: &[bool] = unsafe { from_raw_parts((&D0) as *const _ as _, 4) | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾───────ALLOC_ID───────╼ 04 00 00 00 00 00 00 00 │ ╾──────╼........ + ╾ALLOC_ID╼ 04 00 00 00 00 00 00 00 │ ╾──────╼........ } error[E0080]: it is undefined behavior to use this value --> $DIR/forbidden_slices.rs:32:1 | LL | pub static S7: &[u16] = unsafe { - | ^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered an unaligned reference (required 2 byte alignment but found 1) + | ^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .<deref>[1]: encountered uninitialized bytes | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾─────ALLOC_ID+0x1─────╼ 04 00 00 00 00 00 00 00 │ ╾──────╼........ + ╾ALLOC_ID+0x2╼ 04 00 00 00 00 00 00 00 │ ╾──────╼........ } error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/slice/raw.rs:LL:COL | -LL | &*ptr::slice_from_raw_parts(data, len) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ dereferencing pointer failed: ALLOC_ID has size 8, so pointer to 8 bytes starting at offset 1 is out-of-bounds + = note: dereferencing pointer failed: allocN has size 8, so pointer to 8 bytes starting at offset 1 is out-of-bounds | note: inside `std::slice::from_raw_parts::<'_, u64>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL - | -LL | &*ptr::slice_from_raw_parts(data, len) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `S8` --> $DIR/forbidden_slices.rs:43:5 | @@ -114,19 +98,12 @@ LL | from_raw_parts(ptr, 1) error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::ptr_offset_from_unsigned(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: null pointer is a dangling pointer (it has no provenance) + = note: out-of-bounds offset_from: null pointer is a dangling pointer (it has no provenance) | note: inside `ptr::const_ptr::<impl *const u32>::sub_ptr` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::ptr_offset_from_unsigned(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `from_ptr_range::<'_, u32>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL - | -LL | unsafe { from_raw_parts(range.start, range.end.sub_ptr(range.start)) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `R0` --> $DIR/forbidden_slices.rs:46:34 | @@ -136,19 +113,12 @@ LL | pub static R0: &[u32] = unsafe { from_ptr_range(ptr::null()..ptr::null()) } error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | assert!(0 < pointee_size && pointee_size <= isize::MAX as usize); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'assertion failed: 0 < pointee_size && pointee_size <= isize::MAX as usize', $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL + = note: the evaluated program panicked at 'assertion failed: 0 < pointee_size && pointee_size <= isize::MAX as usize', $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | note: inside `ptr::const_ptr::<impl *const ()>::sub_ptr` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | assert!(0 < pointee_size && pointee_size <= isize::MAX as usize); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `from_ptr_range::<'_, ()>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL - | -LL | unsafe { from_raw_parts(range.start, range.end.sub_ptr(range.start)) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `R1` --> $DIR/forbidden_slices.rs:47:33 | @@ -159,19 +129,12 @@ LL | pub static R1: &[()] = unsafe { from_ptr_range(ptr::null()..ptr::null()) }; error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds pointer arithmetic: ALLOC_ID has size 4, so pointer to 8 bytes starting at offset 0 is out-of-bounds + = note: out-of-bounds pointer arithmetic: allocN has size 4, so pointer to 8 bytes starting at offset 0 is out-of-bounds | note: inside `ptr::const_ptr::<impl *const u32>::offset` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `ptr::const_ptr::<impl *const u32>::add` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { self.offset(count as isize) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `R2` --> $DIR/forbidden_slices.rs:50:25 | @@ -186,7 +149,7 @@ LL | pub static R4: &[u8] = unsafe { | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾──────ALLOC_ID───────╼ 01 00 00 00 00 00 00 00 │ ╾──────╼........ + ╾ALLOC_ID╼ 01 00 00 00 00 00 00 00 │ ╾──────╼........ } error[E0080]: it is undefined behavior to use this value @@ -198,7 +161,7 @@ LL | pub static R5: &[u8] = unsafe { = help: this code performed an operation that depends on the underlying bytes representing a pointer = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported = note: the raw bytes of the constant (size: 16, align: 8) { - ╾──────ALLOC_ID───────╼ 08 00 00 00 00 00 00 00 │ ╾──────╼........ + ╾ALLOC_ID╼ 08 00 00 00 00 00 00 00 │ ╾──────╼........ } error[E0080]: it is undefined behavior to use this value @@ -209,38 +172,35 @@ LL | pub static R6: &[bool] = unsafe { | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾──────ALLOC_ID───────╼ 04 00 00 00 00 00 00 00 │ ╾──────╼........ + ╾ALLOC_ID╼ 04 00 00 00 00 00 00 00 │ ╾──────╼........ } -error[E0080]: it is undefined behavior to use this value - --> $DIR/forbidden_slices.rs:67:1 +error[E0080]: could not evaluate static initializer + --> $SRC_DIR/core/src/slice/raw.rs:LL:COL | -LL | pub static R7: &[u16] = unsafe { - | ^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered an unaligned reference (required 2 byte alignment but found 1) + = note: accessing memory with alignment 1, but alignment 2 is required | - = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. - = note: the raw bytes of the constant (size: 16, align: 8) { - ╾────ALLOC_ID+0x1─────╼ 04 00 00 00 00 00 00 00 │ ╾──────╼........ - } +note: inside `std::slice::from_raw_parts::<'_, u16>` + --> $SRC_DIR/core/src/slice/raw.rs:LL:COL +note: inside `from_ptr_range::<'_, u16>` + --> $SRC_DIR/core/src/slice/raw.rs:LL:COL +note: inside `R7` + --> $DIR/forbidden_slices.rs:69:5 + | +LL | from_ptr_range(ptr..ptr.add(4)) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds pointer arithmetic: ALLOC_ID has size 8, so pointer to 8 bytes starting at offset 1 is out-of-bounds + = note: out-of-bounds pointer arithmetic: allocN has size 8, so pointer to 8 bytes starting at offset 1 is out-of-bounds | note: inside `ptr::const_ptr::<impl *const u64>::offset` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `ptr::const_ptr::<impl *const u64>::add` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { self.offset(count as isize) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `R8` - --> $DIR/forbidden_slices.rs:74:25 + --> $DIR/forbidden_slices.rs:73:25 | LL | from_ptr_range(ptr..ptr.add(1)) | ^^^^^^^^^^ @@ -248,21 +208,14 @@ LL | from_ptr_range(ptr..ptr.add(1)) error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::ptr_offset_from_unsigned(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from_unsigned` called on pointers into different allocations + = note: `ptr_offset_from_unsigned` called on pointers into different allocations | note: inside `ptr::const_ptr::<impl *const u32>::sub_ptr` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::ptr_offset_from_unsigned(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `from_ptr_range::<'_, u32>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL - | -LL | unsafe { from_raw_parts(range.start, range.end.sub_ptr(range.start)) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `R9` - --> $DIR/forbidden_slices.rs:79:34 + --> $DIR/forbidden_slices.rs:78:34 | LL | pub static R9: &[u32] = unsafe { from_ptr_range(&D0..(&D0 as *const u32).add(1)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -270,21 +223,14 @@ LL | pub static R9: &[u32] = unsafe { from_ptr_range(&D0..(&D0 as *const u32).ad error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::ptr_offset_from_unsigned(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from_unsigned` called on pointers into different allocations + = note: `ptr_offset_from_unsigned` called on pointers into different allocations | note: inside `ptr::const_ptr::<impl *const u32>::sub_ptr` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::ptr_offset_from_unsigned(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `from_ptr_range::<'_, u32>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL - | -LL | unsafe { from_raw_parts(range.start, range.end.sub_ptr(range.start)) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `R10` - --> $DIR/forbidden_slices.rs:80:35 + --> $DIR/forbidden_slices.rs:79:35 | LL | pub static R10: &[u32] = unsafe { from_ptr_range(&D0..&D0) }; | ^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/src/test/ui/const-ptr/forbidden_slices.rs b/src/test/ui/const-ptr/forbidden_slices.rs index e2184911f42..cc6100226dc 100644 --- a/src/test/ui/const-ptr/forbidden_slices.rs +++ b/src/test/ui/const-ptr/forbidden_slices.rs @@ -1,6 +1,6 @@ // stderr-per-bitwidth -// normalize-stderr-test "alloc[0-9]+" -> "ALLOC_ID" -// normalize-stderr-test "a[0-9]+\+0x" -> "A_ID+0x" +// normalize-stderr-test "╾─*a(lloc)?[0-9]+(\+[a-z0-9]+)?─*╼" -> "╾ALLOC_ID$2╼" +// normalize-stderr-test "alloc\d+" -> "allocN" // error-pattern: could not evaluate static initializer #![feature( slice_from_ptr_range, @@ -31,7 +31,7 @@ pub static S6: &[bool] = unsafe { from_raw_parts((&D0) as *const _ as _, 4) }; / // Reading padding is not ok pub static S7: &[u16] = unsafe { //~^ ERROR: it is undefined behavior to use this value - let ptr = (&D2 as *const Struct as *const u16).byte_add(1); + let ptr = (&D2 as *const Struct as *const u16).add(1); from_raw_parts(ptr, 4) }; @@ -65,13 +65,12 @@ pub static R6: &[bool] = unsafe { from_ptr_range(ptr..ptr.add(4)) }; pub static R7: &[u16] = unsafe { - //~^ ERROR: it is undefined behavior to use this value let ptr = (&D2 as *const Struct as *const u16).byte_add(1); - from_ptr_range(ptr..ptr.add(4)) + from_ptr_range(ptr..ptr.add(4)) //~ inside `R7` }; pub static R8: &[u64] = unsafe { let ptr = (&D4 as *const [u32; 2] as *const u32).byte_add(1).cast::<u64>(); - from_ptr_range(ptr..ptr.add(1)) + from_ptr_range(ptr..ptr.add(1)) //~ inside `R8` }; // This is sneaky: &D0 and &D0 point to different objects diff --git a/src/test/ui/const-ptr/out_of_bounds_read.stderr b/src/test/ui/const-ptr/out_of_bounds_read.stderr index bca29b46881..3e7b09a5982 100644 --- a/src/test/ui/const-ptr/out_of_bounds_read.stderr +++ b/src/test/ui/const-ptr/out_of_bounds_read.stderr @@ -1,14 +1,10 @@ error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL | -LL | copy_nonoverlapping(src, tmp.as_mut_ptr(), 1); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ memory access failed: alloc5 has size 4, so pointer to 4 bytes starting at offset 4 is out-of-bounds + = note: memory access failed: alloc5 has size 4, so pointer to 4 bytes starting at offset 4 is out-of-bounds | note: inside `std::ptr::read::<u32>` --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL - | -LL | copy_nonoverlapping(src, tmp.as_mut_ptr(), 1); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `_READ` --> $DIR/out_of_bounds_read.rs:12:33 | @@ -18,19 +14,12 @@ LL | const _READ: u32 = unsafe { ptr::read(PAST_END_PTR) }; error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL | -LL | copy_nonoverlapping(src, tmp.as_mut_ptr(), 1); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ memory access failed: alloc5 has size 4, so pointer to 4 bytes starting at offset 4 is out-of-bounds + = note: memory access failed: alloc5 has size 4, so pointer to 4 bytes starting at offset 4 is out-of-bounds | note: inside `std::ptr::read::<u32>` --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL - | -LL | copy_nonoverlapping(src, tmp.as_mut_ptr(), 1); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `ptr::const_ptr::<impl *const u32>::read` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { read(self) } - | ^^^^^^^^^^ note: inside `_CONST_READ` --> $DIR/out_of_bounds_read.rs:13:39 | @@ -40,19 +29,12 @@ LL | const _CONST_READ: u32 = unsafe { PAST_END_PTR.read() }; error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL | -LL | copy_nonoverlapping(src, tmp.as_mut_ptr(), 1); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ memory access failed: alloc5 has size 4, so pointer to 4 bytes starting at offset 4 is out-of-bounds + = note: memory access failed: alloc5 has size 4, so pointer to 4 bytes starting at offset 4 is out-of-bounds | note: inside `std::ptr::read::<u32>` --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL - | -LL | copy_nonoverlapping(src, tmp.as_mut_ptr(), 1); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `ptr::mut_ptr::<impl *mut u32>::read` --> $SRC_DIR/core/src/ptr/mut_ptr.rs:LL:COL - | -LL | unsafe { read(self) } - | ^^^^^^^^^^ note: inside `_MUT_READ` --> $DIR/out_of_bounds_read.rs:14:37 | diff --git a/src/test/ui/consts/const-eval/ub-ref-ptr.32bit.stderr b/src/test/ui/consts/const-eval/ub-ref-ptr.32bit.stderr index e5b5c7a846c..a0a8d76d10d 100644 --- a/src/test/ui/consts/const-eval/ub-ref-ptr.32bit.stderr +++ b/src/test/ui/consts/const-eval/ub-ref-ptr.32bit.stderr @@ -1,5 +1,5 @@ error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:13:1 + --> $DIR/ub-ref-ptr.rs:14:1 | LL | const UNALIGNED: &u16 = unsafe { mem::transmute(&[0u8; 4]) }; | ^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered an unaligned reference (required 2 byte alignment but found 1) @@ -10,7 +10,7 @@ LL | const UNALIGNED: &u16 = unsafe { mem::transmute(&[0u8; 4]) }; } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:17:1 + --> $DIR/ub-ref-ptr.rs:18:1 | LL | const UNALIGNED_BOX: Box<u16> = unsafe { mem::transmute(&[0u8; 4]) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered an unaligned box (required 2 byte alignment but found 1) @@ -21,7 +21,7 @@ LL | const UNALIGNED_BOX: Box<u16> = unsafe { mem::transmute(&[0u8; 4]) }; } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:21:1 + --> $DIR/ub-ref-ptr.rs:22:1 | LL | const NULL: &u16 = unsafe { mem::transmute(0usize) }; | ^^^^^^^^^^^^^^^^ constructing invalid value: encountered a null reference @@ -32,7 +32,7 @@ LL | const NULL: &u16 = unsafe { mem::transmute(0usize) }; } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:24:1 + --> $DIR/ub-ref-ptr.rs:25:1 | LL | const NULL_BOX: Box<u16> = unsafe { mem::transmute(0usize) }; | ^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a null box @@ -43,7 +43,7 @@ LL | const NULL_BOX: Box<u16> = unsafe { mem::transmute(0usize) }; } error[E0080]: evaluation of constant value failed - --> $DIR/ub-ref-ptr.rs:31:1 + --> $DIR/ub-ref-ptr.rs:32:1 | LL | const REF_AS_USIZE: usize = unsafe { mem::transmute(&0) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes @@ -52,7 +52,7 @@ LL | const REF_AS_USIZE: usize = unsafe { mem::transmute(&0) }; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: evaluation of constant value failed - --> $DIR/ub-ref-ptr.rs:34:39 + --> $DIR/ub-ref-ptr.rs:35:39 | LL | const REF_AS_USIZE_SLICE: &[usize] = &[unsafe { mem::transmute(&0) }]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes @@ -61,13 +61,13 @@ LL | const REF_AS_USIZE_SLICE: &[usize] = &[unsafe { mem::transmute(&0) }]; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported note: erroneous constant used - --> $DIR/ub-ref-ptr.rs:34:38 + --> $DIR/ub-ref-ptr.rs:35:38 | LL | const REF_AS_USIZE_SLICE: &[usize] = &[unsafe { mem::transmute(&0) }]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0080]: evaluation of constant value failed - --> $DIR/ub-ref-ptr.rs:37:86 + --> $DIR/ub-ref-ptr.rs:38:86 | LL | const REF_AS_USIZE_BOX_SLICE: Box<[usize]> = unsafe { mem::transmute::<&[usize], _>(&[mem::transmute(&0)]) }; | ^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes @@ -76,13 +76,13 @@ LL | const REF_AS_USIZE_BOX_SLICE: Box<[usize]> = unsafe { mem::transmute::<&[us = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported note: erroneous constant used - --> $DIR/ub-ref-ptr.rs:37:85 + --> $DIR/ub-ref-ptr.rs:38:85 | LL | const REF_AS_USIZE_BOX_SLICE: Box<[usize]> = unsafe { mem::transmute::<&[usize], _>(&[mem::transmute(&0)]) }; | ^^^^^^^^^^^^^^^^^^^^^ error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:40:1 + --> $DIR/ub-ref-ptr.rs:41:1 | LL | const USIZE_AS_REF: &'static u8 = unsafe { mem::transmute(1337usize) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a dangling reference (address 0x539 is unallocated) @@ -93,7 +93,7 @@ LL | const USIZE_AS_REF: &'static u8 = unsafe { mem::transmute(1337usize) }; } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:43:1 + --> $DIR/ub-ref-ptr.rs:44:1 | LL | const USIZE_AS_BOX: Box<u8> = unsafe { mem::transmute(1337usize) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a dangling box (address 0x539 is unallocated) @@ -104,13 +104,13 @@ LL | const USIZE_AS_BOX: Box<u8> = unsafe { mem::transmute(1337usize) }; } error[E0080]: evaluation of constant value failed - --> $DIR/ub-ref-ptr.rs:46:41 + --> $DIR/ub-ref-ptr.rs:47:41 | LL | const UNINIT_PTR: *const i32 = unsafe { MaybeUninit { uninit: () }.init }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:50:1 + --> $DIR/ub-ref-ptr.rs:51:1 | LL | const NULL_FN_PTR: fn() = unsafe { mem::transmute(0usize) }; | ^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered null pointer, but expected a function pointer @@ -121,13 +121,13 @@ LL | const NULL_FN_PTR: fn() = unsafe { mem::transmute(0usize) }; } error[E0080]: evaluation of constant value failed - --> $DIR/ub-ref-ptr.rs:52:38 + --> $DIR/ub-ref-ptr.rs:53:38 | LL | const UNINIT_FN_PTR: fn() = unsafe { MaybeUninit { uninit: () }.init }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:55:1 + --> $DIR/ub-ref-ptr.rs:56:1 | LL | const DANGLING_FN_PTR: fn() = unsafe { mem::transmute(13usize) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered 0xd[noalloc], but expected a function pointer @@ -138,7 +138,7 @@ LL | const DANGLING_FN_PTR: fn() = unsafe { mem::transmute(13usize) }; } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:57:1 + --> $DIR/ub-ref-ptr.rs:58:1 | LL | const DATA_FN_PTR: fn() = unsafe { mem::transmute(&13) }; | ^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered alloc41, but expected a function pointer @@ -148,6 +148,39 @@ LL | const DATA_FN_PTR: fn() = unsafe { mem::transmute(&13) }; ╾─alloc41─╼ │ ╾──╼ } -error: aborting due to 14 previous errors +error: accessing memory with alignment 1, but alignment 4 is required + --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/104616> +note: inside `std::ptr::read::<u32>` + --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL +note: inside `ptr::const_ptr::<impl *const u32>::read` + --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL +note: inside `UNALIGNED_READ` + --> $DIR/ub-ref-ptr.rs:65:5 + | +LL | ptr.read(); + | ^^^^^^^^^^ + = note: `#[deny(invalid_alignment)]` on by default + +error: aborting due to 15 previous errors For more information about this error, try `rustc --explain E0080`. +Future incompatibility report: Future breakage diagnostic: +error: accessing memory with alignment 1, but alignment 4 is required + --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/104616> +note: inside `std::ptr::read::<u32>` + --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL +note: inside `ptr::const_ptr::<impl *const u32>::read` + --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL +note: inside `UNALIGNED_READ` + --> $DIR/ub-ref-ptr.rs:65:5 + | +LL | ptr.read(); + | ^^^^^^^^^^ + = note: `#[deny(invalid_alignment)]` on by default + diff --git a/src/test/ui/consts/const-eval/ub-ref-ptr.64bit.stderr b/src/test/ui/consts/const-eval/ub-ref-ptr.64bit.stderr index 607366cabc4..d53b44671e3 100644 --- a/src/test/ui/consts/const-eval/ub-ref-ptr.64bit.stderr +++ b/src/test/ui/consts/const-eval/ub-ref-ptr.64bit.stderr @@ -1,5 +1,5 @@ error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:13:1 + --> $DIR/ub-ref-ptr.rs:14:1 | LL | const UNALIGNED: &u16 = unsafe { mem::transmute(&[0u8; 4]) }; | ^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered an unaligned reference (required 2 byte alignment but found 1) @@ -10,7 +10,7 @@ LL | const UNALIGNED: &u16 = unsafe { mem::transmute(&[0u8; 4]) }; } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:17:1 + --> $DIR/ub-ref-ptr.rs:18:1 | LL | const UNALIGNED_BOX: Box<u16> = unsafe { mem::transmute(&[0u8; 4]) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered an unaligned box (required 2 byte alignment but found 1) @@ -21,7 +21,7 @@ LL | const UNALIGNED_BOX: Box<u16> = unsafe { mem::transmute(&[0u8; 4]) }; } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:21:1 + --> $DIR/ub-ref-ptr.rs:22:1 | LL | const NULL: &u16 = unsafe { mem::transmute(0usize) }; | ^^^^^^^^^^^^^^^^ constructing invalid value: encountered a null reference @@ -32,7 +32,7 @@ LL | const NULL: &u16 = unsafe { mem::transmute(0usize) }; } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:24:1 + --> $DIR/ub-ref-ptr.rs:25:1 | LL | const NULL_BOX: Box<u16> = unsafe { mem::transmute(0usize) }; | ^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a null box @@ -43,7 +43,7 @@ LL | const NULL_BOX: Box<u16> = unsafe { mem::transmute(0usize) }; } error[E0080]: evaluation of constant value failed - --> $DIR/ub-ref-ptr.rs:31:1 + --> $DIR/ub-ref-ptr.rs:32:1 | LL | const REF_AS_USIZE: usize = unsafe { mem::transmute(&0) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes @@ -52,7 +52,7 @@ LL | const REF_AS_USIZE: usize = unsafe { mem::transmute(&0) }; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: evaluation of constant value failed - --> $DIR/ub-ref-ptr.rs:34:39 + --> $DIR/ub-ref-ptr.rs:35:39 | LL | const REF_AS_USIZE_SLICE: &[usize] = &[unsafe { mem::transmute(&0) }]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes @@ -61,13 +61,13 @@ LL | const REF_AS_USIZE_SLICE: &[usize] = &[unsafe { mem::transmute(&0) }]; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported note: erroneous constant used - --> $DIR/ub-ref-ptr.rs:34:38 + --> $DIR/ub-ref-ptr.rs:35:38 | LL | const REF_AS_USIZE_SLICE: &[usize] = &[unsafe { mem::transmute(&0) }]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0080]: evaluation of constant value failed - --> $DIR/ub-ref-ptr.rs:37:86 + --> $DIR/ub-ref-ptr.rs:38:86 | LL | const REF_AS_USIZE_BOX_SLICE: Box<[usize]> = unsafe { mem::transmute::<&[usize], _>(&[mem::transmute(&0)]) }; | ^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes @@ -76,13 +76,13 @@ LL | const REF_AS_USIZE_BOX_SLICE: Box<[usize]> = unsafe { mem::transmute::<&[us = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported note: erroneous constant used - --> $DIR/ub-ref-ptr.rs:37:85 + --> $DIR/ub-ref-ptr.rs:38:85 | LL | const REF_AS_USIZE_BOX_SLICE: Box<[usize]> = unsafe { mem::transmute::<&[usize], _>(&[mem::transmute(&0)]) }; | ^^^^^^^^^^^^^^^^^^^^^ error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:40:1 + --> $DIR/ub-ref-ptr.rs:41:1 | LL | const USIZE_AS_REF: &'static u8 = unsafe { mem::transmute(1337usize) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a dangling reference (address 0x539 is unallocated) @@ -93,7 +93,7 @@ LL | const USIZE_AS_REF: &'static u8 = unsafe { mem::transmute(1337usize) }; } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:43:1 + --> $DIR/ub-ref-ptr.rs:44:1 | LL | const USIZE_AS_BOX: Box<u8> = unsafe { mem::transmute(1337usize) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a dangling box (address 0x539 is unallocated) @@ -104,13 +104,13 @@ LL | const USIZE_AS_BOX: Box<u8> = unsafe { mem::transmute(1337usize) }; } error[E0080]: evaluation of constant value failed - --> $DIR/ub-ref-ptr.rs:46:41 + --> $DIR/ub-ref-ptr.rs:47:41 | LL | const UNINIT_PTR: *const i32 = unsafe { MaybeUninit { uninit: () }.init }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:50:1 + --> $DIR/ub-ref-ptr.rs:51:1 | LL | const NULL_FN_PTR: fn() = unsafe { mem::transmute(0usize) }; | ^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered null pointer, but expected a function pointer @@ -121,13 +121,13 @@ LL | const NULL_FN_PTR: fn() = unsafe { mem::transmute(0usize) }; } error[E0080]: evaluation of constant value failed - --> $DIR/ub-ref-ptr.rs:52:38 + --> $DIR/ub-ref-ptr.rs:53:38 | LL | const UNINIT_FN_PTR: fn() = unsafe { MaybeUninit { uninit: () }.init }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:55:1 + --> $DIR/ub-ref-ptr.rs:56:1 | LL | const DANGLING_FN_PTR: fn() = unsafe { mem::transmute(13usize) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered 0xd[noalloc], but expected a function pointer @@ -138,7 +138,7 @@ LL | const DANGLING_FN_PTR: fn() = unsafe { mem::transmute(13usize) }; } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-ref-ptr.rs:57:1 + --> $DIR/ub-ref-ptr.rs:58:1 | LL | const DATA_FN_PTR: fn() = unsafe { mem::transmute(&13) }; | ^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered alloc41, but expected a function pointer @@ -148,6 +148,39 @@ LL | const DATA_FN_PTR: fn() = unsafe { mem::transmute(&13) }; ╾───────alloc41───────╼ │ ╾──────╼ } -error: aborting due to 14 previous errors +error: accessing memory with alignment 1, but alignment 4 is required + --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/104616> +note: inside `std::ptr::read::<u32>` + --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL +note: inside `ptr::const_ptr::<impl *const u32>::read` + --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL +note: inside `UNALIGNED_READ` + --> $DIR/ub-ref-ptr.rs:65:5 + | +LL | ptr.read(); + | ^^^^^^^^^^ + = note: `#[deny(invalid_alignment)]` on by default + +error: aborting due to 15 previous errors For more information about this error, try `rustc --explain E0080`. +Future incompatibility report: Future breakage diagnostic: +error: accessing memory with alignment 1, but alignment 4 is required + --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/104616> +note: inside `std::ptr::read::<u32>` + --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL +note: inside `ptr::const_ptr::<impl *const u32>::read` + --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL +note: inside `UNALIGNED_READ` + --> $DIR/ub-ref-ptr.rs:65:5 + | +LL | ptr.read(); + | ^^^^^^^^^^ + = note: `#[deny(invalid_alignment)]` on by default + diff --git a/src/test/ui/consts/const-eval/ub-ref-ptr.rs b/src/test/ui/consts/const-eval/ub-ref-ptr.rs index a1c81239009..b0fc3c196a4 100644 --- a/src/test/ui/consts/const-eval/ub-ref-ptr.rs +++ b/src/test/ui/consts/const-eval/ub-ref-ptr.rs @@ -1,6 +1,7 @@ // ignore-tidy-linelength // stderr-per-bitwidth #![allow(invalid_value)] +#![feature(const_ptr_read)] use std::mem; @@ -57,4 +58,12 @@ const DANGLING_FN_PTR: fn() = unsafe { mem::transmute(13usize) }; const DATA_FN_PTR: fn() = unsafe { mem::transmute(&13) }; //~^ ERROR it is undefined behavior to use this value + +const UNALIGNED_READ: () = unsafe { + let x = &[0u8; 4]; + let ptr = x.as_ptr().cast::<u32>(); + ptr.read(); //~ inside `UNALIGNED_READ` +}; + + fn main() {} diff --git a/src/test/ui/consts/const-eval/ub-wide-ptr.32bit.stderr b/src/test/ui/consts/const-eval/ub-wide-ptr.32bit.stderr index 9994c2e5a83..90a3dcada05 100644 --- a/src/test/ui/consts/const-eval/ub-wide-ptr.32bit.stderr +++ b/src/test/ui/consts/const-eval/ub-wide-ptr.32bit.stderr @@ -1,27 +1,27 @@ error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:36:1 + --> $DIR/ub-wide-ptr.rs:37:1 | LL | const STR_TOO_LONG: &str = unsafe { mem::transmute((&42u8, 999usize)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a dangling reference (going beyond the bounds of its allocation) | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾─allocN──╼ e7 03 00 00 │ ╾──╼.... + ╾ALLOC_ID╼ e7 03 00 00 │ ╾──╼.... } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:38:1 + --> $DIR/ub-wide-ptr.rs:39:1 | LL | const NESTED_STR_MUCH_TOO_LONG: (&str,) = (unsafe { mem::transmute((&42, usize::MAX)) },); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .0: encountered invalid reference metadata: slice is bigger than largest supported object | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾─allocN─╼ ff ff ff ff │ ╾──╼.... + ╾ALLOC_ID╼ ff ff ff ff │ ╾──╼.... } error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:41:1 + --> $DIR/ub-wide-ptr.rs:42:1 | LL | const STR_LENGTH_PTR: &str = unsafe { mem::transmute((&42u8, &3)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes @@ -30,7 +30,7 @@ LL | const STR_LENGTH_PTR: &str = unsafe { mem::transmute((&42u8, &3)) }; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:44:1 + --> $DIR/ub-wide-ptr.rs:45:1 | LL | const MY_STR_LENGTH_PTR: &MyStr = unsafe { mem::transmute((&42u8, &3)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes @@ -39,68 +39,68 @@ LL | const MY_STR_LENGTH_PTR: &MyStr = unsafe { mem::transmute((&42u8, &3)) }; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:46:1 + --> $DIR/ub-wide-ptr.rs:47:1 | LL | const MY_STR_MUCH_TOO_LONG: &MyStr = unsafe { mem::transmute((&42u8, usize::MAX)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered invalid reference metadata: slice is bigger than largest supported object | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾─allocN─╼ ff ff ff ff │ ╾──╼.... + ╾ALLOC_ID╼ ff ff ff ff │ ╾──╼.... } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:50:1 + --> $DIR/ub-wide-ptr.rs:51:1 | LL | const STR_NO_INIT: &str = unsafe { mem::transmute::<&[_], _>(&[MaybeUninit::<u8> { uninit: () }]) }; | ^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .<deref>: encountered uninitialized data in `str` | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾─allocN─╼ 01 00 00 00 │ ╾──╼.... + ╾ALLOC_ID╼ 01 00 00 00 │ ╾──╼.... } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:53:1 + --> $DIR/ub-wide-ptr.rs:54:1 | LL | const MYSTR_NO_INIT: &MyStr = unsafe { mem::transmute::<&[_], _>(&[MaybeUninit::<u8> { uninit: () }]) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .<deref>.0: encountered uninitialized data in `str` | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾─allocN─╼ 01 00 00 00 │ ╾──╼.... + ╾ALLOC_ID╼ 01 00 00 00 │ ╾──╼.... } error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:60:1 + --> $DIR/ub-wide-ptr.rs:61:1 | LL | const SLICE_LENGTH_UNINIT: &[u8] = unsafe { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:67:1 + --> $DIR/ub-wide-ptr.rs:68:1 | LL | const SLICE_TOO_LONG: &[u8] = unsafe { mem::transmute((&42u8, 999usize)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a dangling reference (going beyond the bounds of its allocation) | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾─allocN─╼ e7 03 00 00 │ ╾──╼.... + ╾ALLOC_ID╼ e7 03 00 00 │ ╾──╼.... } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:70:1 + --> $DIR/ub-wide-ptr.rs:71:1 | LL | const SLICE_TOO_LONG_OVERFLOW: &[u32] = unsafe { mem::transmute((&42u32, isize::MAX)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered invalid reference metadata: slice is bigger than largest supported object | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾─allocN─╼ ff ff ff 7f │ ╾──╼.... + ╾ALLOC_ID╼ ff ff ff 7f │ ╾──╼.... } error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:73:1 + --> $DIR/ub-wide-ptr.rs:74:1 | LL | const SLICE_LENGTH_PTR: &[u8] = unsafe { mem::transmute((&42u8, &3)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes @@ -109,18 +109,18 @@ LL | const SLICE_LENGTH_PTR: &[u8] = unsafe { mem::transmute((&42u8, &3)) }; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:76:1 + --> $DIR/ub-wide-ptr.rs:77:1 | LL | const SLICE_TOO_LONG_BOX: Box<[u8]> = unsafe { mem::transmute((&42u8, 999usize)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a dangling box (going beyond the bounds of its allocation) | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾─allocN─╼ e7 03 00 00 │ ╾──╼.... + ╾ALLOC_ID╼ e7 03 00 00 │ ╾──╼.... } error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:79:1 + --> $DIR/ub-wide-ptr.rs:80:1 | LL | const SLICE_LENGTH_PTR_BOX: Box<[u8]> = unsafe { mem::transmute((&42u8, &3)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes @@ -129,165 +129,165 @@ LL | const SLICE_LENGTH_PTR_BOX: Box<[u8]> = unsafe { mem::transmute((&42u8, &3) = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:83:1 + --> $DIR/ub-wide-ptr.rs:84:1 | LL | const SLICE_CONTENT_INVALID: &[bool] = &[unsafe { mem::transmute(3u8) }]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .<deref>[0]: encountered 0x03, but expected a boolean | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 4, align: 4) { - ╾─allocN─╼ │ ╾──╼ + ╾ALLOC_ID╼ │ ╾──╼ } note: erroneous constant used - --> $DIR/ub-wide-ptr.rs:83:40 + --> $DIR/ub-wide-ptr.rs:84:40 | LL | const SLICE_CONTENT_INVALID: &[bool] = &[unsafe { mem::transmute(3u8) }]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:90:1 + --> $DIR/ub-wide-ptr.rs:91:1 | LL | const MYSLICE_PREFIX_BAD: &MySliceBool = &MySlice(unsafe { mem::transmute(3u8) }, [false]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .<deref>.0: encountered 0x03, but expected a boolean | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 4, align: 4) { - ╾allocN─╼ │ ╾──╼ + ╾ALLOC_ID╼ │ ╾──╼ } note: erroneous constant used - --> $DIR/ub-wide-ptr.rs:90:42 + --> $DIR/ub-wide-ptr.rs:91:42 | LL | const MYSLICE_PREFIX_BAD: &MySliceBool = &MySlice(unsafe { mem::transmute(3u8) }, [false]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:94:1 + --> $DIR/ub-wide-ptr.rs:95:1 | LL | const MYSLICE_SUFFIX_BAD: &MySliceBool = &MySlice(true, [unsafe { mem::transmute(3u8) }]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .<deref>.1[0]: encountered 0x03, but expected a boolean | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 4, align: 4) { - ╾allocN─╼ │ ╾──╼ + ╾ALLOC_ID╼ │ ╾──╼ } note: erroneous constant used - --> $DIR/ub-wide-ptr.rs:94:42 + --> $DIR/ub-wide-ptr.rs:95:42 | LL | const MYSLICE_SUFFIX_BAD: &MySliceBool = &MySlice(true, [unsafe { mem::transmute(3u8) }]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:102:1 + --> $DIR/ub-wide-ptr.rs:103:1 | LL | const RAW_SLICE_LENGTH_UNINIT: *const [u8] = unsafe { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:111:1 + --> $DIR/ub-wide-ptr.rs:112:1 | LL | const TRAIT_OBJ_SHORT_VTABLE_1: W<&dyn Trait> = unsafe { mem::transmute(W((&92u8, &3u8))) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .0: encountered allocN, but expected a vtable pointer | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾allocN─╼ ╾allocN─╼ │ ╾──╼╾──╼ + ╾ALLOC_ID╼ ╾ALLOC_ID╼ │ ╾──╼╾──╼ } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:115:1 + --> $DIR/ub-wide-ptr.rs:116:1 | LL | const TRAIT_OBJ_SHORT_VTABLE_2: W<&dyn Trait> = unsafe { mem::transmute(W((&92u8, &3u64))) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .0: encountered allocN, but expected a vtable pointer | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾allocN─╼ ╾allocN─╼ │ ╾──╼╾──╼ + ╾ALLOC_ID╼ ╾ALLOC_ID╼ │ ╾──╼╾──╼ } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:119:1 + --> $DIR/ub-wide-ptr.rs:120:1 | LL | const TRAIT_OBJ_INT_VTABLE: W<&dyn Trait> = unsafe { mem::transmute(W((&92u8, 4usize))) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .0: encountered 0x4[noalloc], but expected a vtable pointer | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾allocN─╼ 04 00 00 00 │ ╾──╼.... + ╾ALLOC_ID╼ 04 00 00 00 │ ╾──╼.... } error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:122:57 + --> $DIR/ub-wide-ptr.rs:123:57 | LL | const TRAIT_OBJ_UNALIGNED_VTABLE: &dyn Trait = unsafe { mem::transmute((&92u8, &[0u8; 128])) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using allocN as vtable pointer but it does not point to a vtable error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:125:57 + --> $DIR/ub-wide-ptr.rs:126:57 | LL | const TRAIT_OBJ_BAD_DROP_FN_NULL: &dyn Trait = unsafe { mem::transmute((&92u8, &[0usize; 8])) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using allocN as vtable pointer but it does not point to a vtable error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:128:56 + --> $DIR/ub-wide-ptr.rs:129:56 | LL | const TRAIT_OBJ_BAD_DROP_FN_INT: &dyn Trait = unsafe { mem::transmute((&92u8, &[1usize; 8])) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using allocN as vtable pointer but it does not point to a vtable error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:131:1 + --> $DIR/ub-wide-ptr.rs:132:1 | LL | const TRAIT_OBJ_BAD_DROP_FN_NOT_FN_PTR: W<&dyn Trait> = unsafe { mem::transmute(W((&92u8, &[&42u8; 8]))) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .0: encountered allocN, but expected a vtable pointer | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾allocN─╼ ╾allocN─╼ │ ╾──╼╾──╼ + ╾ALLOC_ID╼ ╾ALLOC_ID╼ │ ╾──╼╾──╼ } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:136:1 + --> $DIR/ub-wide-ptr.rs:137:1 | LL | const TRAIT_OBJ_CONTENT_INVALID: &dyn Trait = unsafe { mem::transmute::<_, &bool>(&3u8) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .<deref>.<dyn-downcast>: encountered 0x03, but expected a boolean | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾allocN─╼ ╾allocN─╼ │ ╾──╼╾──╼ + ╾ALLOC_ID╼ ╾ALLOC_ID╼ │ ╾──╼╾──╼ } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:141:1 + --> $DIR/ub-wide-ptr.rs:142:1 | LL | const RAW_TRAIT_OBJ_VTABLE_NULL: *const dyn Trait = unsafe { mem::transmute((&92u8, 0usize)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered null pointer, but expected a vtable pointer | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾allocN─╼ 00 00 00 00 │ ╾──╼.... + ╾ALLOC_ID╼ 00 00 00 00 │ ╾──╼.... } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:143:1 + --> $DIR/ub-wide-ptr.rs:144:1 | LL | const RAW_TRAIT_OBJ_VTABLE_INVALID: *const dyn Trait = unsafe { mem::transmute((&92u8, &3u64)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered allocN, but expected a vtable pointer | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 4) { - ╾allocN─╼ ╾allocN─╼ │ ╾──╼╾──╼ + ╾ALLOC_ID╼ ╾ALLOC_ID╼ │ ╾──╼╾──╼ } error[E0080]: could not evaluate static initializer - --> $DIR/ub-wide-ptr.rs:149:5 + --> $DIR/ub-wide-ptr.rs:150:5 | LL | mem::transmute::<_, &dyn Trait>((&92u8, 0usize)) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds pointer use: null pointer is a dangling pointer (it has no provenance) error[E0080]: could not evaluate static initializer - --> $DIR/ub-wide-ptr.rs:153:5 + --> $DIR/ub-wide-ptr.rs:154:5 | LL | mem::transmute::<_, &dyn Trait>((&92u8, &3u64)) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using allocN as vtable pointer but it does not point to a vtable diff --git a/src/test/ui/consts/const-eval/ub-wide-ptr.64bit.stderr b/src/test/ui/consts/const-eval/ub-wide-ptr.64bit.stderr index 06a377d9f7c..ab25303ddc0 100644 --- a/src/test/ui/consts/const-eval/ub-wide-ptr.64bit.stderr +++ b/src/test/ui/consts/const-eval/ub-wide-ptr.64bit.stderr @@ -1,27 +1,27 @@ error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:36:1 + --> $DIR/ub-wide-ptr.rs:37:1 | LL | const STR_TOO_LONG: &str = unsafe { mem::transmute((&42u8, 999usize)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a dangling reference (going beyond the bounds of its allocation) | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾───────allocN────────╼ e7 03 00 00 00 00 00 00 │ ╾──────╼........ + ╾ALLOC_ID╼ e7 03 00 00 00 00 00 00 │ ╾──────╼........ } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:38:1 + --> $DIR/ub-wide-ptr.rs:39:1 | LL | const NESTED_STR_MUCH_TOO_LONG: (&str,) = (unsafe { mem::transmute((&42, usize::MAX)) },); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .0: encountered invalid reference metadata: slice is bigger than largest supported object | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾───────allocN───────╼ ff ff ff ff ff ff ff ff │ ╾──────╼........ + ╾ALLOC_ID╼ ff ff ff ff ff ff ff ff │ ╾──────╼........ } error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:41:1 + --> $DIR/ub-wide-ptr.rs:42:1 | LL | const STR_LENGTH_PTR: &str = unsafe { mem::transmute((&42u8, &3)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes @@ -30,7 +30,7 @@ LL | const STR_LENGTH_PTR: &str = unsafe { mem::transmute((&42u8, &3)) }; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:44:1 + --> $DIR/ub-wide-ptr.rs:45:1 | LL | const MY_STR_LENGTH_PTR: &MyStr = unsafe { mem::transmute((&42u8, &3)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes @@ -39,68 +39,68 @@ LL | const MY_STR_LENGTH_PTR: &MyStr = unsafe { mem::transmute((&42u8, &3)) }; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:46:1 + --> $DIR/ub-wide-ptr.rs:47:1 | LL | const MY_STR_MUCH_TOO_LONG: &MyStr = unsafe { mem::transmute((&42u8, usize::MAX)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered invalid reference metadata: slice is bigger than largest supported object | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾───────allocN───────╼ ff ff ff ff ff ff ff ff │ ╾──────╼........ + ╾ALLOC_ID╼ ff ff ff ff ff ff ff ff │ ╾──────╼........ } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:50:1 + --> $DIR/ub-wide-ptr.rs:51:1 | LL | const STR_NO_INIT: &str = unsafe { mem::transmute::<&[_], _>(&[MaybeUninit::<u8> { uninit: () }]) }; | ^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .<deref>: encountered uninitialized data in `str` | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾───────allocN───────╼ 01 00 00 00 00 00 00 00 │ ╾──────╼........ + ╾ALLOC_ID╼ 01 00 00 00 00 00 00 00 │ ╾──────╼........ } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:53:1 + --> $DIR/ub-wide-ptr.rs:54:1 | LL | const MYSTR_NO_INIT: &MyStr = unsafe { mem::transmute::<&[_], _>(&[MaybeUninit::<u8> { uninit: () }]) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .<deref>.0: encountered uninitialized data in `str` | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾───────allocN───────╼ 01 00 00 00 00 00 00 00 │ ╾──────╼........ + ╾ALLOC_ID╼ 01 00 00 00 00 00 00 00 │ ╾──────╼........ } error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:60:1 + --> $DIR/ub-wide-ptr.rs:61:1 | LL | const SLICE_LENGTH_UNINIT: &[u8] = unsafe { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:67:1 + --> $DIR/ub-wide-ptr.rs:68:1 | LL | const SLICE_TOO_LONG: &[u8] = unsafe { mem::transmute((&42u8, 999usize)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a dangling reference (going beyond the bounds of its allocation) | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾───────allocN───────╼ e7 03 00 00 00 00 00 00 │ ╾──────╼........ + ╾ALLOC_ID╼ e7 03 00 00 00 00 00 00 │ ╾──────╼........ } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:70:1 + --> $DIR/ub-wide-ptr.rs:71:1 | LL | const SLICE_TOO_LONG_OVERFLOW: &[u32] = unsafe { mem::transmute((&42u32, isize::MAX)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered invalid reference metadata: slice is bigger than largest supported object | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾───────allocN───────╼ ff ff ff ff ff ff ff 7f │ ╾──────╼........ + ╾ALLOC_ID╼ ff ff ff ff ff ff ff 7f │ ╾──────╼........ } error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:73:1 + --> $DIR/ub-wide-ptr.rs:74:1 | LL | const SLICE_LENGTH_PTR: &[u8] = unsafe { mem::transmute((&42u8, &3)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes @@ -109,18 +109,18 @@ LL | const SLICE_LENGTH_PTR: &[u8] = unsafe { mem::transmute((&42u8, &3)) }; = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:76:1 + --> $DIR/ub-wide-ptr.rs:77:1 | LL | const SLICE_TOO_LONG_BOX: Box<[u8]> = unsafe { mem::transmute((&42u8, 999usize)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered a dangling box (going beyond the bounds of its allocation) | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾───────allocN───────╼ e7 03 00 00 00 00 00 00 │ ╾──────╼........ + ╾ALLOC_ID╼ e7 03 00 00 00 00 00 00 │ ╾──────╼........ } error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:79:1 + --> $DIR/ub-wide-ptr.rs:80:1 | LL | const SLICE_LENGTH_PTR_BOX: Box<[u8]> = unsafe { mem::transmute((&42u8, &3)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into raw bytes @@ -129,165 +129,165 @@ LL | const SLICE_LENGTH_PTR_BOX: Box<[u8]> = unsafe { mem::transmute((&42u8, &3) = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:83:1 + --> $DIR/ub-wide-ptr.rs:84:1 | LL | const SLICE_CONTENT_INVALID: &[bool] = &[unsafe { mem::transmute(3u8) }]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .<deref>[0]: encountered 0x03, but expected a boolean | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 8) { - ╾───────allocN───────╼ │ ╾──────╼ + ╾ALLOC_ID╼ │ ╾──────╼ } note: erroneous constant used - --> $DIR/ub-wide-ptr.rs:83:40 + --> $DIR/ub-wide-ptr.rs:84:40 | LL | const SLICE_CONTENT_INVALID: &[bool] = &[unsafe { mem::transmute(3u8) }]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:90:1 + --> $DIR/ub-wide-ptr.rs:91:1 | LL | const MYSLICE_PREFIX_BAD: &MySliceBool = &MySlice(unsafe { mem::transmute(3u8) }, [false]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .<deref>.0: encountered 0x03, but expected a boolean | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 8) { - ╾──────allocN───────╼ │ ╾──────╼ + ╾ALLOC_ID╼ │ ╾──────╼ } note: erroneous constant used - --> $DIR/ub-wide-ptr.rs:90:42 + --> $DIR/ub-wide-ptr.rs:91:42 | LL | const MYSLICE_PREFIX_BAD: &MySliceBool = &MySlice(unsafe { mem::transmute(3u8) }, [false]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:94:1 + --> $DIR/ub-wide-ptr.rs:95:1 | LL | const MYSLICE_SUFFIX_BAD: &MySliceBool = &MySlice(true, [unsafe { mem::transmute(3u8) }]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .<deref>.1[0]: encountered 0x03, but expected a boolean | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 8, align: 8) { - ╾──────allocN───────╼ │ ╾──────╼ + ╾ALLOC_ID╼ │ ╾──────╼ } note: erroneous constant used - --> $DIR/ub-wide-ptr.rs:94:42 + --> $DIR/ub-wide-ptr.rs:95:42 | LL | const MYSLICE_SUFFIX_BAD: &MySliceBool = &MySlice(true, [unsafe { mem::transmute(3u8) }]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:102:1 + --> $DIR/ub-wide-ptr.rs:103:1 | LL | const RAW_SLICE_LENGTH_UNINIT: *const [u8] = unsafe { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using uninitialized data, but this operation requires initialized memory error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:111:1 + --> $DIR/ub-wide-ptr.rs:112:1 | LL | const TRAIT_OBJ_SHORT_VTABLE_1: W<&dyn Trait> = unsafe { mem::transmute(W((&92u8, &3u8))) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .0: encountered allocN, but expected a vtable pointer | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾──────allocN───────╼ ╾──────allocN───────╼ │ ╾──────╼╾──────╼ + ╾ALLOC_ID╼ ╾ALLOC_ID╼ │ ╾──────╼╾──────╼ } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:115:1 + --> $DIR/ub-wide-ptr.rs:116:1 | LL | const TRAIT_OBJ_SHORT_VTABLE_2: W<&dyn Trait> = unsafe { mem::transmute(W((&92u8, &3u64))) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .0: encountered allocN, but expected a vtable pointer | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾──────allocN───────╼ ╾──────allocN───────╼ │ ╾──────╼╾──────╼ + ╾ALLOC_ID╼ ╾ALLOC_ID╼ │ ╾──────╼╾──────╼ } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:119:1 + --> $DIR/ub-wide-ptr.rs:120:1 | LL | const TRAIT_OBJ_INT_VTABLE: W<&dyn Trait> = unsafe { mem::transmute(W((&92u8, 4usize))) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .0: encountered 0x4[noalloc], but expected a vtable pointer | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾──────allocN───────╼ 04 00 00 00 00 00 00 00 │ ╾──────╼........ + ╾ALLOC_ID╼ 04 00 00 00 00 00 00 00 │ ╾──────╼........ } error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:122:57 + --> $DIR/ub-wide-ptr.rs:123:57 | LL | const TRAIT_OBJ_UNALIGNED_VTABLE: &dyn Trait = unsafe { mem::transmute((&92u8, &[0u8; 128])) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using allocN as vtable pointer but it does not point to a vtable error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:125:57 + --> $DIR/ub-wide-ptr.rs:126:57 | LL | const TRAIT_OBJ_BAD_DROP_FN_NULL: &dyn Trait = unsafe { mem::transmute((&92u8, &[0usize; 8])) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using allocN as vtable pointer but it does not point to a vtable error[E0080]: evaluation of constant value failed - --> $DIR/ub-wide-ptr.rs:128:56 + --> $DIR/ub-wide-ptr.rs:129:56 | LL | const TRAIT_OBJ_BAD_DROP_FN_INT: &dyn Trait = unsafe { mem::transmute((&92u8, &[1usize; 8])) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using allocN as vtable pointer but it does not point to a vtable error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:131:1 + --> $DIR/ub-wide-ptr.rs:132:1 | LL | const TRAIT_OBJ_BAD_DROP_FN_NOT_FN_PTR: W<&dyn Trait> = unsafe { mem::transmute(W((&92u8, &[&42u8; 8]))) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .0: encountered allocN, but expected a vtable pointer | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾──────allocN───────╼ ╾──────allocN───────╼ │ ╾──────╼╾──────╼ + ╾ALLOC_ID╼ ╾ALLOC_ID╼ │ ╾──────╼╾──────╼ } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:136:1 + --> $DIR/ub-wide-ptr.rs:137:1 | LL | const TRAIT_OBJ_CONTENT_INVALID: &dyn Trait = unsafe { mem::transmute::<_, &bool>(&3u8) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value at .<deref>.<dyn-downcast>: encountered 0x03, but expected a boolean | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾──────allocN───────╼ ╾──────allocN───────╼ │ ╾──────╼╾──────╼ + ╾ALLOC_ID╼ ╾ALLOC_ID╼ │ ╾──────╼╾──────╼ } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:141:1 + --> $DIR/ub-wide-ptr.rs:142:1 | LL | const RAW_TRAIT_OBJ_VTABLE_NULL: *const dyn Trait = unsafe { mem::transmute((&92u8, 0usize)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered null pointer, but expected a vtable pointer | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾──────allocN───────╼ 00 00 00 00 00 00 00 00 │ ╾──────╼........ + ╾ALLOC_ID╼ 00 00 00 00 00 00 00 00 │ ╾──────╼........ } error[E0080]: it is undefined behavior to use this value - --> $DIR/ub-wide-ptr.rs:143:1 + --> $DIR/ub-wide-ptr.rs:144:1 | LL | const RAW_TRAIT_OBJ_VTABLE_INVALID: *const dyn Trait = unsafe { mem::transmute((&92u8, &3u64)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered allocN, but expected a vtable pointer | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. = note: the raw bytes of the constant (size: 16, align: 8) { - ╾──────allocN───────╼ ╾──────allocN───────╼ │ ╾──────╼╾──────╼ + ╾ALLOC_ID╼ ╾ALLOC_ID╼ │ ╾──────╼╾──────╼ } error[E0080]: could not evaluate static initializer - --> $DIR/ub-wide-ptr.rs:149:5 + --> $DIR/ub-wide-ptr.rs:150:5 | LL | mem::transmute::<_, &dyn Trait>((&92u8, 0usize)) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds pointer use: null pointer is a dangling pointer (it has no provenance) error[E0080]: could not evaluate static initializer - --> $DIR/ub-wide-ptr.rs:153:5 + --> $DIR/ub-wide-ptr.rs:154:5 | LL | mem::transmute::<_, &dyn Trait>((&92u8, &3u64)) | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ using allocN as vtable pointer but it does not point to a vtable diff --git a/src/test/ui/consts/const-eval/ub-wide-ptr.rs b/src/test/ui/consts/const-eval/ub-wide-ptr.rs index 2894ef83188..d12e5e2bed9 100644 --- a/src/test/ui/consts/const-eval/ub-wide-ptr.rs +++ b/src/test/ui/consts/const-eval/ub-wide-ptr.rs @@ -4,6 +4,7 @@ use std::mem; +// normalize-stderr-test "╾─*a(lloc)?[0-9]+(\+[a-z0-9]+)?─*╼" -> "╾ALLOC_ID$2╼" // normalize-stderr-test "offset \d+" -> "offset N" // normalize-stderr-test "alloc\d+" -> "allocN" // normalize-stderr-test "size \d+" -> "size N" diff --git a/src/test/ui/consts/const-float-bits-reject-conv.stderr b/src/test/ui/consts/const-float-bits-reject-conv.stderr index 195a087ffa5..7ad02252094 100644 --- a/src/test/ui/consts/const-float-bits-reject-conv.stderr +++ b/src/test/ui/consts/const-float-bits-reject-conv.stderr @@ -1,19 +1,12 @@ error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/num/f32.rs:LL:COL | -LL | panic!("const-eval error: cannot use f32::to_bits on a NaN") - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'const-eval error: cannot use f32::to_bits on a NaN', $SRC_DIR/core/src/num/f32.rs:LL:COL + = note: the evaluated program panicked at 'const-eval error: cannot use f32::to_bits on a NaN', $SRC_DIR/core/src/num/f32.rs:LL:COL | note: inside `core::f32::<impl f32>::to_bits::ct_f32_to_u32` --> $SRC_DIR/core/src/num/f32.rs:LL:COL - | -LL | panic!("const-eval error: cannot use f32::to_bits on a NaN") - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `core::f32::<impl f32>::to_bits` --> $SRC_DIR/core/src/num/f32.rs:LL:COL - | -LL | unsafe { intrinsics::const_eval_select((self,), ct_f32_to_u32, rt_f32_to_u32) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `f32::MASKED_NAN1` --> $DIR/const-float-bits-reject-conv.rs:28:30 | @@ -24,19 +17,12 @@ LL | const MASKED_NAN1: u32 = f32::NAN.to_bits() ^ 0x002A_AAAA; error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/num/f32.rs:LL:COL | -LL | panic!("const-eval error: cannot use f32::to_bits on a NaN") - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'const-eval error: cannot use f32::to_bits on a NaN', $SRC_DIR/core/src/num/f32.rs:LL:COL + = note: the evaluated program panicked at 'const-eval error: cannot use f32::to_bits on a NaN', $SRC_DIR/core/src/num/f32.rs:LL:COL | note: inside `core::f32::<impl f32>::to_bits::ct_f32_to_u32` --> $SRC_DIR/core/src/num/f32.rs:LL:COL - | -LL | panic!("const-eval error: cannot use f32::to_bits on a NaN") - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `core::f32::<impl f32>::to_bits` --> $SRC_DIR/core/src/num/f32.rs:LL:COL - | -LL | unsafe { intrinsics::const_eval_select((self,), ct_f32_to_u32, rt_f32_to_u32) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `f32::MASKED_NAN2` --> $DIR/const-float-bits-reject-conv.rs:30:30 | @@ -71,19 +57,12 @@ LL | const_assert!(f32::from_bits(MASKED_NAN2).to_bits(), MASKED_NAN2); error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/num/f64.rs:LL:COL | -LL | panic!("const-eval error: cannot use f64::to_bits on a NaN") - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'const-eval error: cannot use f64::to_bits on a NaN', $SRC_DIR/core/src/num/f64.rs:LL:COL + = note: the evaluated program panicked at 'const-eval error: cannot use f64::to_bits on a NaN', $SRC_DIR/core/src/num/f64.rs:LL:COL | note: inside `core::f64::<impl f64>::to_bits::ct_f64_to_u64` --> $SRC_DIR/core/src/num/f64.rs:LL:COL - | -LL | panic!("const-eval error: cannot use f64::to_bits on a NaN") - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `core::f64::<impl f64>::to_bits` --> $SRC_DIR/core/src/num/f64.rs:LL:COL - | -LL | unsafe { intrinsics::const_eval_select((self,), ct_f64_to_u64, rt_f64_to_u64) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `f64::MASKED_NAN1` --> $DIR/const-float-bits-reject-conv.rs:50:30 | @@ -94,19 +73,12 @@ LL | const MASKED_NAN1: u64 = f64::NAN.to_bits() ^ 0x000A_AAAA_AAAA_AAAA; error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/num/f64.rs:LL:COL | -LL | panic!("const-eval error: cannot use f64::to_bits on a NaN") - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'const-eval error: cannot use f64::to_bits on a NaN', $SRC_DIR/core/src/num/f64.rs:LL:COL + = note: the evaluated program panicked at 'const-eval error: cannot use f64::to_bits on a NaN', $SRC_DIR/core/src/num/f64.rs:LL:COL | note: inside `core::f64::<impl f64>::to_bits::ct_f64_to_u64` --> $SRC_DIR/core/src/num/f64.rs:LL:COL - | -LL | panic!("const-eval error: cannot use f64::to_bits on a NaN") - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `core::f64::<impl f64>::to_bits` --> $SRC_DIR/core/src/num/f64.rs:LL:COL - | -LL | unsafe { intrinsics::const_eval_select((self,), ct_f64_to_u64, rt_f64_to_u64) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `f64::MASKED_NAN2` --> $DIR/const-float-bits-reject-conv.rs:52:30 | diff --git a/src/test/ui/consts/const-fn-error.stderr b/src/test/ui/consts/const-fn-error.stderr index 02960b363e7..f6b532fb658 100644 --- a/src/test/ui/consts/const-fn-error.stderr +++ b/src/test/ui/consts/const-fn-error.stderr @@ -21,9 +21,6 @@ LL | for i in 0..x { | note: impl defined here, but it is not `const` --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | impl<I: Iterator> const IntoIterator for I { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants error[E0658]: mutable references are not allowed in constant functions diff --git a/src/test/ui/consts/const-for.stderr b/src/test/ui/consts/const-for.stderr index 11e4ae309c0..294ea627d85 100644 --- a/src/test/ui/consts/const-for.stderr +++ b/src/test/ui/consts/const-for.stderr @@ -6,9 +6,6 @@ LL | for _ in 0..5 {} | note: impl defined here, but it is not `const` --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | impl<I: Iterator> const IntoIterator for I { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: calls in constants are limited to constant functions, tuple structs and tuple variants error[E0015]: cannot call non-const fn `<std::ops::Range<i32> as Iterator>::next` in constants diff --git a/src/test/ui/consts/const_unsafe_unreachable_ub.stderr b/src/test/ui/consts/const_unsafe_unreachable_ub.stderr index cbc7cac937a..593a51bfe8f 100644 --- a/src/test/ui/consts/const_unsafe_unreachable_ub.stderr +++ b/src/test/ui/consts/const_unsafe_unreachable_ub.stderr @@ -1,14 +1,10 @@ error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/hint.rs:LL:COL | -LL | intrinsics::unreachable() - | ^^^^^^^^^^^^^^^^^^^^^^^^^ entering unreachable code + = note: entering unreachable code | note: inside `unreachable_unchecked` --> $SRC_DIR/core/src/hint.rs:LL:COL - | -LL | intrinsics::unreachable() - | ^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `foo` --> $DIR/const_unsafe_unreachable_ub.rs:6:18 | diff --git a/src/test/ui/consts/copy-intrinsic.rs b/src/test/ui/consts/copy-intrinsic.rs index 249bbb5991c..94d7bdc6bae 100644 --- a/src/test/ui/consts/copy-intrinsic.rs +++ b/src/test/ui/consts/copy-intrinsic.rs @@ -17,7 +17,7 @@ const COPY_ZERO: () = unsafe { // Since we are not copying anything, this should be allowed. let src = (); let mut dst = (); - copy_nonoverlapping(&src as *const _ as *const i32, &mut dst as *mut _ as *mut i32, 0); + copy_nonoverlapping(&src as *const _ as *const u8, &mut dst as *mut _ as *mut u8, 0); }; const COPY_OOB_1: () = unsafe { diff --git a/src/test/ui/consts/extra-const-ub/detect-extra-ub.rs b/src/test/ui/consts/extra-const-ub/detect-extra-ub.rs index 9c239c8a100..e2f8149883b 100644 --- a/src/test/ui/consts/extra-const-ub/detect-extra-ub.rs +++ b/src/test/ui/consts/extra-const-ub/detect-extra-ub.rs @@ -28,15 +28,4 @@ const UNALIGNED_PTR: () = unsafe { //[with_flag]~| invalid value }; -const UNALIGNED_READ: () = { - INNER; //[with_flag]~ constant - // There is an error here but its span is in the standard library so we cannot match it... - // so we have this in a *nested* const, such that the *outer* const fails to use it. - const INNER: () = unsafe { - let x = &[0u8; 4]; - let ptr = x.as_ptr().cast::<u32>(); - ptr.read(); - }; -}; - fn main() {} diff --git a/src/test/ui/consts/extra-const-ub/detect-extra-ub.with_flag.stderr b/src/test/ui/consts/extra-const-ub/detect-extra-ub.with_flag.stderr index 2603a73583e..b2a5fd90149 100644 --- a/src/test/ui/consts/extra-const-ub/detect-extra-ub.with_flag.stderr +++ b/src/test/ui/consts/extra-const-ub/detect-extra-ub.with_flag.stderr @@ -28,34 +28,6 @@ error[E0080]: evaluation of constant value failed LL | let _x: &u32 = transmute(&[0u8; 4]); | ^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered an unaligned reference (required 4 byte alignment but found 1) -error[E0080]: evaluation of constant value failed - --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL - | -LL | copy_nonoverlapping(src, tmp.as_mut_ptr(), 1); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ accessing memory with alignment 1, but alignment 4 is required - | -note: inside `std::ptr::read::<u32>` - --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL - | -LL | copy_nonoverlapping(src, tmp.as_mut_ptr(), 1); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -note: inside `ptr::const_ptr::<impl *const u32>::read` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { read(self) } - | ^^^^^^^^^^ -note: inside `INNER` - --> $DIR/detect-extra-ub.rs:38:9 - | -LL | ptr.read(); - | ^^^^^^^^^^ - -note: erroneous constant used - --> $DIR/detect-extra-ub.rs:32:5 - | -LL | INNER; - | ^^^^^ - -error: aborting due to 5 previous errors +error: aborting due to 4 previous errors For more information about this error, try `rustc --explain E0080`. diff --git a/src/test/ui/consts/issue-miri-1910.stderr b/src/test/ui/consts/issue-miri-1910.stderr index 1f82e1777af..61865b1dad7 100644 --- a/src/test/ui/consts/issue-miri-1910.stderr +++ b/src/test/ui/consts/issue-miri-1910.stderr @@ -1,21 +1,14 @@ error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL | -LL | copy_nonoverlapping(src, tmp.as_mut_ptr(), 1); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to copy parts of a pointer from memory at ALLOC + = note: unable to copy parts of a pointer from memory at ALLOC | = help: this code performed an operation that depends on the underlying bytes representing a pointer = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported note: inside `std::ptr::read::<u8>` --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL - | -LL | copy_nonoverlapping(src, tmp.as_mut_ptr(), 1); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `ptr::const_ptr::<impl *const u8>::read` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { read(self) } - | ^^^^^^^^^^ note: inside `C` --> $DIR/issue-miri-1910.rs:8:5 | diff --git a/src/test/ui/consts/miri_unleashed/assoc_const.stderr b/src/test/ui/consts/miri_unleashed/assoc_const.stderr index b26f121dba0..e1da43c3aea 100644 --- a/src/test/ui/consts/miri_unleashed/assoc_const.stderr +++ b/src/test/ui/consts/miri_unleashed/assoc_const.stderr @@ -1,19 +1,12 @@ error[E0080]: evaluation of `<std::string::String as Bar<std::vec::Vec<u32>, std::string::String>>::F` failed --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL | -LL | pub unsafe fn drop_in_place<T: ?Sized>(to_drop: *mut T) { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ calling non-const function `<Vec<u32> as Drop>::drop` + = note: calling non-const function `<Vec<u32> as Drop>::drop` | note: inside `std::ptr::drop_in_place::<Vec<u32>> - shim(Some(Vec<u32>))` --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL - | -LL | pub unsafe fn drop_in_place<T: ?Sized>(to_drop: *mut T) { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `std::ptr::drop_in_place::<(Vec<u32>, u32)> - shim(Some((Vec<u32>, u32)))` --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL - | -LL | pub unsafe fn drop_in_place<T: ?Sized>(to_drop: *mut T) { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `<String as Bar<Vec<u32>, String>>::F` --> $DIR/assoc_const.rs:12:31 | diff --git a/src/test/ui/consts/miri_unleashed/drop.stderr b/src/test/ui/consts/miri_unleashed/drop.stderr index e2e2f16d5a0..4f60b882069 100644 --- a/src/test/ui/consts/miri_unleashed/drop.stderr +++ b/src/test/ui/consts/miri_unleashed/drop.stderr @@ -1,14 +1,10 @@ error[E0080]: could not evaluate static initializer --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL | -LL | pub unsafe fn drop_in_place<T: ?Sized>(to_drop: *mut T) { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ calling non-const function `<Vec<i32> as Drop>::drop` + = note: calling non-const function `<Vec<i32> as Drop>::drop` | note: inside `std::ptr::drop_in_place::<Vec<i32>> - shim(Some(Vec<i32>))` --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL - | -LL | pub unsafe fn drop_in_place<T: ?Sized>(to_drop: *mut T) { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `TEST_BAD` --> $DIR/drop.rs:17:1 | diff --git a/src/test/ui/consts/missing_span_in_backtrace.rs b/src/test/ui/consts/missing_span_in_backtrace.rs index c4930b73aaa..dd2b81c5af2 100644 --- a/src/test/ui/consts/missing_span_in_backtrace.rs +++ b/src/test/ui/consts/missing_span_in_backtrace.rs @@ -1,4 +1,4 @@ -// compile-flags: -Z simulate-remapped-rust-src-base=/rustc/FAKE_PREFIX -Z translate-remapped-path-to-local-path=no -Z ui-testing=no +// compile-flags: -Z ui-testing=no // normalize-stderr-test "alloc[0-9]+" -> "ALLOC_ID" #![feature(const_swap)] diff --git a/src/test/ui/consts/offset_from_ub.stderr b/src/test/ui/consts/offset_from_ub.stderr index 9578d90ea9d..fff4729689f 100644 --- a/src/test/ui/consts/offset_from_ub.stderr +++ b/src/test/ui/consts/offset_from_ub.stderr @@ -7,14 +7,10 @@ LL | let offset = unsafe { ptr_offset_from(field_ptr, base_ptr) }; error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::ptr_offset_from(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from` called on pointers into different allocations + = note: `ptr_offset_from` called on pointers into different allocations | note: inside `ptr::const_ptr::<impl *const u8>::offset_from` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::ptr_offset_from(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `NOT_PTR` --> $DIR/offset_from_ub.rs:24:14 | @@ -90,14 +86,10 @@ LL | unsafe { ptr_offset_from_unsigned(ptr2, ptr1) } error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::ptr_offset_from(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: null pointer is a dangling pointer (it has no provenance) + = note: out-of-bounds offset_from: null pointer is a dangling pointer (it has no provenance) | note: inside `ptr::const_ptr::<impl *const u8>::offset_from` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::ptr_offset_from(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `OFFSET_VERY_FAR1` --> $DIR/offset_from_ub.rs:115:14 | @@ -107,14 +99,10 @@ LL | unsafe { ptr2.offset_from(ptr1) } error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::ptr_offset_from(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds offset_from: null pointer is a dangling pointer (it has no provenance) + = note: out-of-bounds offset_from: null pointer is a dangling pointer (it has no provenance) | note: inside `ptr::const_ptr::<impl *const u8>::offset_from` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::ptr_offset_from(self, origin) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `OFFSET_VERY_FAR2` --> $DIR/offset_from_ub.rs:121:14 | diff --git a/src/test/ui/consts/offset_ub.stderr b/src/test/ui/consts/offset_ub.stderr index 7938f70a269..c0c851df507 100644 --- a/src/test/ui/consts/offset_ub.stderr +++ b/src/test/ui/consts/offset_ub.stderr @@ -1,14 +1,10 @@ error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ overflowing in-bounds pointer arithmetic + = note: overflowing in-bounds pointer arithmetic | note: inside `ptr::const_ptr::<impl *const u8>::offset` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `BEFORE_START` --> $DIR/offset_ub.rs:7:46 | @@ -18,14 +14,10 @@ LL | pub const BEFORE_START: *const u8 = unsafe { (&0u8 as *const u8).offset(-1) error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds pointer arithmetic: allocN has size 1, so pointer to 2 bytes starting at offset 0 is out-of-bounds + = note: out-of-bounds pointer arithmetic: allocN has size 1, so pointer to 2 bytes starting at offset 0 is out-of-bounds | note: inside `ptr::const_ptr::<impl *const u8>::offset` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `AFTER_END` --> $DIR/offset_ub.rs:8:43 | @@ -35,14 +27,10 @@ LL | pub const AFTER_END: *const u8 = unsafe { (&0u8 as *const u8).offset(2) }; error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds pointer arithmetic: allocN has size 100, so pointer to 101 bytes starting at offset 0 is out-of-bounds + = note: out-of-bounds pointer arithmetic: allocN has size 100, so pointer to 101 bytes starting at offset 0 is out-of-bounds | note: inside `ptr::const_ptr::<impl *const u8>::offset` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `AFTER_ARRAY` --> $DIR/offset_ub.rs:9:45 | @@ -52,14 +40,10 @@ LL | pub const AFTER_ARRAY: *const u8 = unsafe { [0u8; 100].as_ptr().offset(101) error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ overflowing in-bounds pointer arithmetic + = note: overflowing in-bounds pointer arithmetic | note: inside `ptr::const_ptr::<impl *const u16>::offset` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `OVERFLOW` --> $DIR/offset_ub.rs:11:43 | @@ -69,14 +53,10 @@ LL | pub const OVERFLOW: *const u16 = unsafe { [0u16; 1].as_ptr().offset(isize:: error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ overflowing in-bounds pointer arithmetic + = note: overflowing in-bounds pointer arithmetic | note: inside `ptr::const_ptr::<impl *const u16>::offset` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `UNDERFLOW` --> $DIR/offset_ub.rs:12:44 | @@ -86,14 +66,10 @@ LL | pub const UNDERFLOW: *const u16 = unsafe { [0u16; 1].as_ptr().offset(isize: error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ overflowing in-bounds pointer arithmetic + = note: overflowing in-bounds pointer arithmetic | note: inside `ptr::const_ptr::<impl *const u8>::offset` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `OVERFLOW_ADDRESS_SPACE` --> $DIR/offset_ub.rs:13:56 | @@ -103,14 +79,10 @@ LL | pub const OVERFLOW_ADDRESS_SPACE: *const u8 = unsafe { (usize::MAX as *cons error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ overflowing in-bounds pointer arithmetic + = note: overflowing in-bounds pointer arithmetic | note: inside `ptr::const_ptr::<impl *const u8>::offset` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `UNDERFLOW_ADDRESS_SPACE` --> $DIR/offset_ub.rs:14:57 | @@ -120,14 +92,10 @@ LL | pub const UNDERFLOW_ADDRESS_SPACE: *const u8 = unsafe { (1 as *const u8).of error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds pointer arithmetic: allocN has size 1, so pointer to 2 bytes starting at offset -4 is out-of-bounds + = note: out-of-bounds pointer arithmetic: allocN has size 1, so pointer to 2 bytes starting at offset -4 is out-of-bounds | note: inside `ptr::const_ptr::<impl *const u8>::offset` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `NEGATIVE_OFFSET` --> $DIR/offset_ub.rs:15:49 | @@ -137,14 +105,10 @@ LL | pub const NEGATIVE_OFFSET: *const u8 = unsafe { [0u8; 1].as_ptr().wrapping_ error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds pointer arithmetic: allocN has size 0, so pointer to 1 byte starting at offset 0 is out-of-bounds + = note: out-of-bounds pointer arithmetic: allocN has size 0, so pointer to 1 byte starting at offset 0 is out-of-bounds | note: inside `ptr::const_ptr::<impl *const u8>::offset` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `ZERO_SIZED_ALLOC` --> $DIR/offset_ub.rs:17:50 | @@ -154,14 +118,10 @@ LL | pub const ZERO_SIZED_ALLOC: *const u8 = unsafe { [0u8; 0].as_ptr().offset(1 error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/mut_ptr.rs:LL:COL | -LL | unsafe { intrinsics::offset(self, count) as *mut T } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds pointer arithmetic: 0x1[noalloc] is a dangling pointer (it has no provenance) + = note: out-of-bounds pointer arithmetic: 0x1[noalloc] is a dangling pointer (it has no provenance) | note: inside `ptr::mut_ptr::<impl *mut u8>::offset` --> $SRC_DIR/core/src/ptr/mut_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::offset(self, count) as *mut T } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `DANGLING` --> $DIR/offset_ub.rs:18:42 | @@ -171,14 +131,10 @@ LL | pub const DANGLING: *const u8 = unsafe { ptr::NonNull::<u8>::dangling().as_ error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds pointer arithmetic: null pointer is a dangling pointer (it has no provenance) + = note: out-of-bounds pointer arithmetic: null pointer is a dangling pointer (it has no provenance) | note: inside `ptr::const_ptr::<impl *const u8>::offset` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `NULL_OFFSET_ZERO` --> $DIR/offset_ub.rs:21:50 | @@ -188,14 +144,10 @@ LL | pub const NULL_OFFSET_ZERO: *const u8 = unsafe { ptr::null::<u8>().offset(0 error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds pointer arithmetic: 0x7f..f[noalloc] is a dangling pointer (it has no provenance) + = note: out-of-bounds pointer arithmetic: 0x7f..f[noalloc] is a dangling pointer (it has no provenance) | note: inside `ptr::const_ptr::<impl *const u8>::offset` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `UNDERFLOW_ABS` --> $DIR/offset_ub.rs:24:47 | diff --git a/src/test/ui/consts/ptr_comparisons.stderr b/src/test/ui/consts/ptr_comparisons.stderr index 274753ef1bc..fea924d12e5 100644 --- a/src/test/ui/consts/ptr_comparisons.stderr +++ b/src/test/ui/consts/ptr_comparisons.stderr @@ -1,14 +1,10 @@ error[E0080]: evaluation of constant value failed --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ out-of-bounds pointer arithmetic: alloc3 has size $WORD, so pointer to $TWO_WORDS bytes starting at offset 0 is out-of-bounds + = note: out-of-bounds pointer arithmetic: alloc3 has size $WORD, so pointer to $TWO_WORDS bytes starting at offset 0 is out-of-bounds | note: inside `ptr::const_ptr::<impl *const usize>::offset` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL - | -LL | unsafe { intrinsics::offset(self, count) } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `_` --> $DIR/ptr_comparisons.rs:50:34 | diff --git a/src/test/ui/derives/derives-span-Eq-enum-struct-variant.stderr b/src/test/ui/derives/derives-span-Eq-enum-struct-variant.stderr index e3fb234b96e..2be69a30b1c 100644 --- a/src/test/ui/derives/derives-span-Eq-enum-struct-variant.stderr +++ b/src/test/ui/derives/derives-span-Eq-enum-struct-variant.stderr @@ -9,9 +9,6 @@ LL | x: Error | note: required by a bound in `AssertParamIsEq` --> $SRC_DIR/core/src/cmp.rs:LL:COL - | -LL | pub struct AssertParamIsEq<T: Eq + ?Sized> { - | ^^ required by this bound in `AssertParamIsEq` = note: this error originates in the derive macro `Eq` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider annotating `Error` with `#[derive(Eq)]` | diff --git a/src/test/ui/derives/derives-span-Eq-enum.stderr b/src/test/ui/derives/derives-span-Eq-enum.stderr index 4e10c3f69e7..4f4f821cca3 100644 --- a/src/test/ui/derives/derives-span-Eq-enum.stderr +++ b/src/test/ui/derives/derives-span-Eq-enum.stderr @@ -9,9 +9,6 @@ LL | Error | note: required by a bound in `AssertParamIsEq` --> $SRC_DIR/core/src/cmp.rs:LL:COL - | -LL | pub struct AssertParamIsEq<T: Eq + ?Sized> { - | ^^ required by this bound in `AssertParamIsEq` = note: this error originates in the derive macro `Eq` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider annotating `Error` with `#[derive(Eq)]` | diff --git a/src/test/ui/derives/derives-span-Eq-struct.stderr b/src/test/ui/derives/derives-span-Eq-struct.stderr index bfdab052a2e..f15659c3e16 100644 --- a/src/test/ui/derives/derives-span-Eq-struct.stderr +++ b/src/test/ui/derives/derives-span-Eq-struct.stderr @@ -9,9 +9,6 @@ LL | x: Error | note: required by a bound in `AssertParamIsEq` --> $SRC_DIR/core/src/cmp.rs:LL:COL - | -LL | pub struct AssertParamIsEq<T: Eq + ?Sized> { - | ^^ required by this bound in `AssertParamIsEq` = note: this error originates in the derive macro `Eq` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider annotating `Error` with `#[derive(Eq)]` | diff --git a/src/test/ui/derives/derives-span-Eq-tuple-struct.stderr b/src/test/ui/derives/derives-span-Eq-tuple-struct.stderr index 26b8be34333..4e5659b35f4 100644 --- a/src/test/ui/derives/derives-span-Eq-tuple-struct.stderr +++ b/src/test/ui/derives/derives-span-Eq-tuple-struct.stderr @@ -9,9 +9,6 @@ LL | Error | note: required by a bound in `AssertParamIsEq` --> $SRC_DIR/core/src/cmp.rs:LL:COL - | -LL | pub struct AssertParamIsEq<T: Eq + ?Sized> { - | ^^ required by this bound in `AssertParamIsEq` = note: this error originates in the derive macro `Eq` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider annotating `Error` with `#[derive(Eq)]` | diff --git a/src/test/ui/derives/deriving-meta-unknown-trait.stderr b/src/test/ui/derives/deriving-meta-unknown-trait.stderr index f3ff95a85da..053d34f6825 100644 --- a/src/test/ui/derives/deriving-meta-unknown-trait.stderr +++ b/src/test/ui/derives/deriving-meta-unknown-trait.stderr @@ -3,22 +3,18 @@ error: cannot find derive macro `Eqr` in this scope | LL | #[derive(Eqr)] | ^^^ help: a derive macro with a similar name exists: `Eq` + --> $SRC_DIR/core/src/cmp.rs:LL:COL | - ::: $SRC_DIR/core/src/cmp.rs:LL:COL - | -LL | pub macro Eq($item:item) { - | ------------ similarly named derive macro `Eq` defined here + = note: similarly named derive macro `Eq` defined here error: cannot find derive macro `Eqr` in this scope --> $DIR/deriving-meta-unknown-trait.rs:1:10 | LL | #[derive(Eqr)] | ^^^ help: a derive macro with a similar name exists: `Eq` + --> $SRC_DIR/core/src/cmp.rs:LL:COL | - ::: $SRC_DIR/core/src/cmp.rs:LL:COL - | -LL | pub macro Eq($item:item) { - | ------------ similarly named derive macro `Eq` defined here + = note: similarly named derive macro `Eq` defined here error: aborting due to 2 previous errors diff --git a/src/test/ui/deriving/issue-103157.stderr b/src/test/ui/deriving/issue-103157.stderr index ee3528fe106..b18e1e5098b 100644 --- a/src/test/ui/deriving/issue-103157.stderr +++ b/src/test/ui/deriving/issue-103157.stderr @@ -20,9 +20,6 @@ LL | Float(Option<f64>), = note: required for `Option<f64>` to implement `Eq` note: required by a bound in `AssertParamIsEq` --> $SRC_DIR/core/src/cmp.rs:LL:COL - | -LL | pub struct AssertParamIsEq<T: Eq + ?Sized> { - | ^^ required by this bound in `AssertParamIsEq` = note: this error originates in the derive macro `Eq` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to previous error diff --git a/src/test/ui/destructuring-assignment/note-unsupported.stderr b/src/test/ui/destructuring-assignment/note-unsupported.stderr index e45344aa51f..8a88332b73e 100644 --- a/src/test/ui/destructuring-assignment/note-unsupported.stderr +++ b/src/test/ui/destructuring-assignment/note-unsupported.stderr @@ -49,11 +49,8 @@ note: an implementation of `AddAssign<_>` might be missing for `S` | LL | struct S { x: u8, y: u8 } | ^^^^^^^^ must implement `AddAssign<_>` -note: the following trait must be implemented +note: the trait `AddAssign` must be implemented --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | pub trait AddAssign<Rhs = Self> { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0067]: invalid left-hand side of assignment --> $DIR/note-unsupported.rs:17:22 diff --git a/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-let.fixed b/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-let.fixed new file mode 100644 index 00000000000..ae0a84eea4d --- /dev/null +++ b/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-let.fixed @@ -0,0 +1,21 @@ +// run-rustfix +struct X { + x: String, +} + +impl Drop for X { + fn drop(&mut self) { + println!("value: {}", self.x); + } +} + +fn unwrap(x: X) -> String { + let X { x: ref y } = x; //~ ERROR cannot move out of type + y.to_string() +} + +fn main() { + let x = X { x: "hello".to_string() }; + let y = unwrap(x); + println!("contents: {}", y); +} diff --git a/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-let.rs b/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-let.rs index 8e394498a23..c8db7861068 100644 --- a/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-let.rs +++ b/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-let.rs @@ -1,3 +1,4 @@ +// run-rustfix struct X { x: String, } @@ -10,7 +11,7 @@ impl Drop for X { fn unwrap(x: X) -> String { let X { x: y } = x; //~ ERROR cannot move out of type - y + y.to_string() } fn main() { diff --git a/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-let.stderr b/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-let.stderr index cda81d13669..596ad4bf784 100644 --- a/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-let.stderr +++ b/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-let.stderr @@ -1,11 +1,16 @@ error[E0509]: cannot move out of type `X`, which implements the `Drop` trait - --> $DIR/disallowed-deconstructing-destructing-struct-let.rs:12:22 + --> $DIR/disallowed-deconstructing-destructing-struct-let.rs:13:22 | LL | let X { x: y } = x; | - ^ cannot move out of here | | | data moved here | move occurs because `y` has type `String`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | let X { x: ref y } = x; + | +++ error: aborting due to previous error diff --git a/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-match.fixed b/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-match.fixed new file mode 100644 index 00000000000..c8a451efeb2 --- /dev/null +++ b/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-match.fixed @@ -0,0 +1,19 @@ +// run-rustfix +struct X { + x: String, +} + +impl Drop for X { + fn drop(&mut self) { + println!("value: {}", self.x); + } +} + +fn main() { + let x = X { x: "hello".to_string() }; + + match x { + //~^ ERROR cannot move out of type `X`, which implements the `Drop` trait + X { x: ref y } => println!("contents: {}", y) + } +} diff --git a/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-match.rs b/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-match.rs index 9c996a93b95..815567ffec3 100644 --- a/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-match.rs +++ b/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-match.rs @@ -1,3 +1,4 @@ +// run-rustfix struct X { x: String, } diff --git a/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-match.stderr b/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-match.stderr index 70cdd6446c8..e32a4dd4411 100644 --- a/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-match.stderr +++ b/src/test/ui/disallowed-deconstructing/disallowed-deconstructing-destructing-struct-match.stderr @@ -1,5 +1,5 @@ error[E0509]: cannot move out of type `X`, which implements the `Drop` trait - --> $DIR/disallowed-deconstructing-destructing-struct-match.rs:14:11 + --> $DIR/disallowed-deconstructing-destructing-struct-match.rs:15:11 | LL | match x { | ^ cannot move out of here @@ -9,6 +9,11 @@ LL | X { x: y } => println!("contents: {}", y) | | | data moved here | move occurs because `y` has type `String`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | X { x: ref y } => println!("contents: {}", y) + | +++ error: aborting due to previous error diff --git a/src/test/ui/dropck/dropck_no_diverge_on_nonregular_1.stderr b/src/test/ui/dropck/dropck_no_diverge_on_nonregular_1.stderr index c447e2f7987..3e39d15f9b0 100644 --- a/src/test/ui/dropck/dropck_no_diverge_on_nonregular_1.stderr +++ b/src/test/ui/dropck/dropck_no_diverge_on_nonregular_1.stderr @@ -8,3 +8,4 @@ LL | let ft = error: aborting due to previous error +For more information about this error, try `rustc --explain E0320`. diff --git a/src/test/ui/dropck/dropck_no_diverge_on_nonregular_2.stderr b/src/test/ui/dropck/dropck_no_diverge_on_nonregular_2.stderr index cd4706dd903..dbb74354471 100644 --- a/src/test/ui/dropck/dropck_no_diverge_on_nonregular_2.stderr +++ b/src/test/ui/dropck/dropck_no_diverge_on_nonregular_2.stderr @@ -8,3 +8,4 @@ LL | let ft = error: aborting due to previous error +For more information about this error, try `rustc --explain E0320`. diff --git a/src/test/ui/dropck/dropck_no_diverge_on_nonregular_3.stderr b/src/test/ui/dropck/dropck_no_diverge_on_nonregular_3.stderr index 18cd1b6cd41..deaf116b647 100644 --- a/src/test/ui/dropck/dropck_no_diverge_on_nonregular_3.stderr +++ b/src/test/ui/dropck/dropck_no_diverge_on_nonregular_3.stderr @@ -16,3 +16,4 @@ LL | Some(Wrapper::Simple::<u32>); error: aborting due to 2 previous errors +For more information about this error, try `rustc --explain E0320`. diff --git a/src/test/ui/dst/dst-rvalue.stderr b/src/test/ui/dst/dst-rvalue.stderr index 727f4d84303..8d0a82b707d 100644 --- a/src/test/ui/dst/dst-rvalue.stderr +++ b/src/test/ui/dst/dst-rvalue.stderr @@ -9,9 +9,6 @@ LL | let _x: Box<str> = Box::new(*"hello world"); = help: the trait `Sized` is not implemented for `str` note: required by a bound in `Box::<T>::new` --> $SRC_DIR/alloc/src/boxed.rs:LL:COL - | -LL | impl<T> Box<T> { - | ^ required by this bound in `Box::<T>::new` error[E0277]: the size for values of type `[isize]` cannot be known at compilation time --> $DIR/dst-rvalue.rs:8:37 @@ -24,9 +21,6 @@ LL | let _x: Box<[isize]> = Box::new(*array); = help: the trait `Sized` is not implemented for `[isize]` note: required by a bound in `Box::<T>::new` --> $SRC_DIR/alloc/src/boxed.rs:LL:COL - | -LL | impl<T> Box<T> { - | ^ required by this bound in `Box::<T>::new` error: aborting due to 2 previous errors diff --git a/src/test/ui/dyn-star/dyn-to-rigid.rs b/src/test/ui/dyn-star/dyn-to-rigid.rs new file mode 100644 index 00000000000..e80ee15902e --- /dev/null +++ b/src/test/ui/dyn-star/dyn-to-rigid.rs @@ -0,0 +1,11 @@ +#![feature(dyn_star)] +#![allow(incomplete_features)] + +trait Tr {} + +fn f(x: dyn* Tr) -> usize { + x as usize + //~^ ERROR casting `(dyn* Tr + 'static)` as `usize` is invalid +} + +fn main() {} diff --git a/src/test/ui/dyn-star/dyn-to-rigid.stderr b/src/test/ui/dyn-star/dyn-to-rigid.stderr new file mode 100644 index 00000000000..588e6d97e5c --- /dev/null +++ b/src/test/ui/dyn-star/dyn-to-rigid.stderr @@ -0,0 +1,9 @@ +error[E0606]: casting `(dyn* Tr + 'static)` as `usize` is invalid + --> $DIR/dyn-to-rigid.rs:7:5 + | +LL | x as usize + | ^^^^^^^^^^ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0606`. diff --git a/src/test/ui/empty/empty-struct-braces-expr.stderr b/src/test/ui/empty/empty-struct-braces-expr.stderr index e1a7a02a568..0e580aedeaa 100644 --- a/src/test/ui/empty/empty-struct-braces-expr.stderr +++ b/src/test/ui/empty/empty-struct-braces-expr.stderr @@ -100,22 +100,22 @@ help: a unit struct with a similar name exists LL | let xe1 = XEmpty2(); | ~~~~~~~ -error[E0599]: no variant or associated item named `Empty3` found for enum `empty_struct::XE` in the current scope +error[E0599]: no variant or associated item named `Empty3` found for enum `XE` in the current scope --> $DIR/empty-struct-braces-expr.rs:25:19 | LL | let xe3 = XE::Empty3; | ^^^^^^ | | - | variant or associated item not found in `empty_struct::XE` + | variant or associated item not found in `XE` | help: there is a variant with a similar name: `XEmpty3` -error[E0599]: no variant or associated item named `Empty3` found for enum `empty_struct::XE` in the current scope +error[E0599]: no variant or associated item named `Empty3` found for enum `XE` in the current scope --> $DIR/empty-struct-braces-expr.rs:26:19 | LL | let xe3 = XE::Empty3(); | ^^^^^^ | | - | variant or associated item not found in `empty_struct::XE` + | variant or associated item not found in `XE` | help: there is a variant with a similar name: `XEmpty3` error[E0599]: no variant named `Empty1` found for enum `empty_struct::XE` diff --git a/src/test/ui/error-codes/E0004-2.stderr b/src/test/ui/error-codes/E0004-2.stderr index 6f5bb4309c3..e829bac196f 100644 --- a/src/test/ui/error-codes/E0004-2.stderr +++ b/src/test/ui/error-codes/E0004-2.stderr @@ -6,15 +6,12 @@ LL | match x { } | note: `Option<i32>` defined here --> $SRC_DIR/core/src/option.rs:LL:COL + ::: $SRC_DIR/core/src/option.rs:LL:COL | -LL | pub enum Option<T> { - | ------------------ -... -LL | None, - | ^^^^ not covered -... -LL | Some(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^^^ not covered + = note: not covered + ::: $SRC_DIR/core/src/option.rs:LL:COL + | + = note: not covered = note: the matched value is of type `Option<i32>` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern, a match arm with multiple or-patterns as shown, or multiple match arms | diff --git a/src/test/ui/error-codes/E0005.stderr b/src/test/ui/error-codes/E0005.stderr index de8e6bac486..0f179259356 100644 --- a/src/test/ui/error-codes/E0005.stderr +++ b/src/test/ui/error-codes/E0005.stderr @@ -8,12 +8,9 @@ LL | let Some(y) = x; = note: for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html note: `Option<i32>` defined here --> $SRC_DIR/core/src/option.rs:LL:COL + ::: $SRC_DIR/core/src/option.rs:LL:COL | -LL | pub enum Option<T> { - | ------------------ -... -LL | None, - | ^^^^ not covered + = note: not covered = note: the matched value is of type `Option<i32>` help: you might want to use `if let` to ignore the variant that isn't matched | diff --git a/src/test/ui/error-codes/E0059.stderr b/src/test/ui/error-codes/E0059.stderr index f331d014226..4f6abb22ab2 100644 --- a/src/test/ui/error-codes/E0059.stderr +++ b/src/test/ui/error-codes/E0059.stderr @@ -6,9 +6,6 @@ LL | fn foo<F: Fn<i32>>(f: F) -> F::Output { f(3) } | note: required by a bound in `Fn` --> $SRC_DIR/core/src/ops/function.rs:LL:COL - | -LL | pub trait Fn<Args: Tuple>: FnMut<Args> { - | ^^^^^ required by this bound in `Fn` error: aborting due to previous error diff --git a/src/test/ui/error-codes/E0282.stderr b/src/test/ui/error-codes/E0282.stderr index d01aa3617c7..892d3a81f27 100644 --- a/src/test/ui/error-codes/E0282.stderr +++ b/src/test/ui/error-codes/E0282.stderr @@ -6,8 +6,8 @@ LL | let x = "hello".chars().rev().collect(); | help: consider giving `x` an explicit type | -LL | let x: _ = "hello".chars().rev().collect(); - | +++ +LL | let x: Vec<_> = "hello".chars().rev().collect(); + | ++++++++ error: aborting due to previous error diff --git a/src/test/ui/error-codes/E0297.stderr b/src/test/ui/error-codes/E0297.stderr index 693b079238d..903422f3b9b 100644 --- a/src/test/ui/error-codes/E0297.stderr +++ b/src/test/ui/error-codes/E0297.stderr @@ -6,12 +6,9 @@ LL | for Some(x) in xs {} | note: `Option<i32>` defined here --> $SRC_DIR/core/src/option.rs:LL:COL + ::: $SRC_DIR/core/src/option.rs:LL:COL | -LL | pub enum Option<T> { - | ------------------ -... -LL | None, - | ^^^^ not covered + = note: not covered = note: the matched value is of type `Option<i32>` error: aborting due to previous error diff --git a/src/test/ui/error-codes/E0401.stderr b/src/test/ui/error-codes/E0401.stderr index 9687eca61fa..fa4b91cacef 100644 --- a/src/test/ui/error-codes/E0401.stderr +++ b/src/test/ui/error-codes/E0401.stderr @@ -59,7 +59,7 @@ note: required by a bound in `bfnr` | LL | fn bfnr<U, V: Baz<U>, W: Fn()>(y: T) { | ^^^^ required by this bound in `bfnr` -help: consider specifying the type arguments in the function call +help: consider specifying the generic arguments | LL | bfnr::<U, V, W>(x); | +++++++++++ diff --git a/src/test/ui/error-codes/E0507.stderr b/src/test/ui/error-codes/E0507.stderr index ce8d1ef0349..03630f38987 100644 --- a/src/test/ui/error-codes/E0507.stderr +++ b/src/test/ui/error-codes/E0507.stderr @@ -7,7 +7,7 @@ LL | x.borrow().nothing_is_true(); | | value moved due to this method call | move occurs because value has type `TheDarkKnight`, which does not implement the `Copy` trait | -note: this function takes ownership of the receiver `self`, which moves value +note: `TheDarkKnight::nothing_is_true` takes ownership of the receiver `self`, which moves value --> $DIR/E0507.rs:6:24 | LL | fn nothing_is_true(self) {} diff --git a/src/test/ui/error-codes/E0508-fail.stderr b/src/test/ui/error-codes/E0508-fail.stderr index b69d7743b6c..208ba30729f 100644 --- a/src/test/ui/error-codes/E0508-fail.stderr +++ b/src/test/ui/error-codes/E0508-fail.stderr @@ -6,7 +6,11 @@ LL | let _value = array[0]; | | | cannot move out of here | move occurs because `array[_]` has type `NonCopy`, which does not implement the `Copy` trait - | help: consider borrowing here: `&array[0]` + | +help: consider borrowing here + | +LL | let _value = &array[0]; + | + error: aborting due to previous error diff --git a/src/test/ui/error-codes/E0508.stderr b/src/test/ui/error-codes/E0508.stderr index 5e7b56dcd37..df2d3b0d311 100644 --- a/src/test/ui/error-codes/E0508.stderr +++ b/src/test/ui/error-codes/E0508.stderr @@ -6,7 +6,11 @@ LL | let _value = array[0]; | | | cannot move out of here | move occurs because `array[_]` has type `NonCopy`, which does not implement the `Copy` trait - | help: consider borrowing here: `&array[0]` + | +help: consider borrowing here + | +LL | let _value = &array[0]; + | + error: aborting due to previous error diff --git a/src/test/ui/error-codes/E0509.stderr b/src/test/ui/error-codes/E0509.stderr index cbfbc3ccf6a..c00d9142e75 100644 --- a/src/test/ui/error-codes/E0509.stderr +++ b/src/test/ui/error-codes/E0509.stderr @@ -6,7 +6,11 @@ LL | let fancy_field = drop_struct.fancy; | | | cannot move out of here | move occurs because `drop_struct.fancy` has type `FancyNum`, which does not implement the `Copy` trait - | help: consider borrowing here: `&drop_struct.fancy` + | +help: consider borrowing here + | +LL | let fancy_field = &drop_struct.fancy; + | + error: aborting due to previous error diff --git a/src/test/ui/error-codes/E0790.stderr b/src/test/ui/error-codes/E0790.stderr index f68c0e7d220..fc025a3fca2 100644 --- a/src/test/ui/error-codes/E0790.stderr +++ b/src/test/ui/error-codes/E0790.stderr @@ -37,8 +37,8 @@ LL | inner::MyTrait::my_fn(); | help: use the fully-qualified path to the only available implementation | -LL | inner::<MyStruct as MyTrait>::my_fn(); - | ++++++++++++ + +LL | <MyStruct as inner::MyTrait>::my_fn(); + | ++++++++++++ + error[E0790]: cannot refer to the associated constant on trait without specifying the corresponding `impl` type --> $DIR/E0790.rs:30:13 @@ -51,8 +51,8 @@ LL | let _ = inner::MyTrait::MY_ASSOC_CONST; | help: use the fully-qualified path to the only available implementation | -LL | let _ = inner::<MyStruct as MyTrait>::MY_ASSOC_CONST; - | ++++++++++++ + +LL | let _ = <MyStruct as inner::MyTrait>::MY_ASSOC_CONST; + | ++++++++++++ + error[E0790]: cannot call associated function on trait without specifying the corresponding `impl` type --> $DIR/E0790.rs:50:5 diff --git a/src/test/ui/error-festival.stderr b/src/test/ui/error-festival.stderr index 43122c13efb..fe9956b70bd 100644 --- a/src/test/ui/error-festival.stderr +++ b/src/test/ui/error-festival.stderr @@ -41,11 +41,8 @@ note: an implementation of `Not` might be missing for `Question` | LL | enum Question { | ^^^^^^^^^^^^^ must implement `Not` -note: the following trait must be implemented +note: the trait `Not` must be implemented --> $SRC_DIR/core/src/ops/bit.rs:LL:COL - | -LL | pub trait Not { - | ^^^^^^^^^^^^^ error[E0604]: only `u8` can be cast as `char`, not `u32` --> $DIR/error-festival.rs:25:5 diff --git a/src/test/ui/expr/malformed_closure/ruby_style_closure.stderr b/src/test/ui/expr/malformed_closure/ruby_style_closure.stderr index 759d79493a9..2f9d10d70a2 100644 --- a/src/test/ui/expr/malformed_closure/ruby_style_closure.stderr +++ b/src/test/ui/expr/malformed_closure/ruby_style_closure.stderr @@ -14,7 +14,7 @@ LL | let p = Some(45).and_then({ LL | | LL | | |x| println!("doubling {}", x); LL | | Some(x * 2) - | | ----------- this tail expression is of type `std::option::Option<_>` + | | ----------- this tail expression is of type `Option<_>` LL | | LL | | }); | |_____^ expected an `FnOnce<({integer},)>` closure, found `Option<_>` @@ -22,9 +22,6 @@ LL | | }); = help: the trait `FnOnce<({integer},)>` is not implemented for `Option<_>` note: required by a bound in `Option::<T>::and_then` --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | F: ~const FnOnce(T) -> Option<U>, - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Option::<T>::and_then` error: aborting due to 2 previous errors diff --git a/src/test/ui/feature-gates/feature-gate-exhaustive-patterns.stderr b/src/test/ui/feature-gates/feature-gate-exhaustive-patterns.stderr index 5ced344f13f..e253e4791e8 100644 --- a/src/test/ui/feature-gates/feature-gate-exhaustive-patterns.stderr +++ b/src/test/ui/feature-gates/feature-gate-exhaustive-patterns.stderr @@ -8,12 +8,9 @@ LL | let Ok(_x) = foo(); = note: for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html note: `Result<u32, !>` defined here --> $SRC_DIR/core/src/result.rs:LL:COL + ::: $SRC_DIR/core/src/result.rs:LL:COL | -LL | pub enum Result<T, E> { - | --------------------- -... -LL | Err(#[stable(feature = "rust1", since = "1.0.0")] E), - | ^^^ not covered + = note: not covered = note: the matched value is of type `Result<u32, !>` help: you might want to use `if let` to ignore the variant that isn't matched | diff --git a/src/test/ui/feature-gates/feature-gate-unsized_fn_params.rs b/src/test/ui/feature-gates/feature-gate-unsized_fn_params.rs index 9b868ed7a9e..c04e57843d4 100644 --- a/src/test/ui/feature-gates/feature-gate-unsized_fn_params.rs +++ b/src/test/ui/feature-gates/feature-gate-unsized_fn_params.rs @@ -1,5 +1,5 @@ +#![allow(unused, bare_trait_objects)] #[repr(align(256))] -#[allow(dead_code)] struct A { v: u8, } @@ -14,13 +14,17 @@ impl Foo for A { } } -fn foo(x: dyn Foo) { - //~^ ERROR [E0277] +fn foo(x: dyn Foo) { //~ ERROR [E0277] x.foo() } +fn bar(x: Foo) { //~ ERROR [E0277] + x.foo() +} + +fn qux(_: [()]) {} //~ ERROR [E0277] + fn main() { let x: Box<dyn Foo> = Box::new(A { v: 22 }); - foo(*x); - //~^ ERROR [E0277] + foo(*x); //~ ERROR [E0277] } diff --git a/src/test/ui/feature-gates/feature-gate-unsized_fn_params.stderr b/src/test/ui/feature-gates/feature-gate-unsized_fn_params.stderr index 0f7520ef7f8..92c71392672 100644 --- a/src/test/ui/feature-gates/feature-gate-unsized_fn_params.stderr +++ b/src/test/ui/feature-gates/feature-gate-unsized_fn_params.stderr @@ -6,13 +6,47 @@ LL | fn foo(x: dyn Foo) { | = help: the trait `Sized` is not implemented for `(dyn Foo + 'static)` = help: unsized fn params are gated as an unstable feature +help: you can use `impl Trait` as the argument type + | +LL | fn foo(x: impl Foo) { + | ~~~~ help: function arguments must have a statically known size, borrowed types always have a known size | LL | fn foo(x: &dyn Foo) { | + error[E0277]: the size for values of type `(dyn Foo + 'static)` cannot be known at compilation time - --> $DIR/feature-gate-unsized_fn_params.rs:24:9 + --> $DIR/feature-gate-unsized_fn_params.rs:21:8 + | +LL | fn bar(x: Foo) { + | ^ doesn't have a size known at compile-time + | + = help: the trait `Sized` is not implemented for `(dyn Foo + 'static)` + = help: unsized fn params are gated as an unstable feature +help: you can use `impl Trait` as the argument type + | +LL | fn bar(x: impl Foo) { + | ++++ +help: function arguments must have a statically known size, borrowed types always have a known size + | +LL | fn bar(x: &Foo) { + | + + +error[E0277]: the size for values of type `[()]` cannot be known at compilation time + --> $DIR/feature-gate-unsized_fn_params.rs:25:8 + | +LL | fn qux(_: [()]) {} + | ^ doesn't have a size known at compile-time + | + = help: the trait `Sized` is not implemented for `[()]` + = help: unsized fn params are gated as an unstable feature +help: function arguments must have a statically known size, borrowed types always have a known size + | +LL | fn qux(_: &[()]) {} + | + + +error[E0277]: the size for values of type `(dyn Foo + 'static)` cannot be known at compilation time + --> $DIR/feature-gate-unsized_fn_params.rs:29:9 | LL | foo(*x); | ^^ doesn't have a size known at compile-time @@ -21,6 +55,6 @@ LL | foo(*x); = note: all function arguments must have a statically known size = help: unsized fn params are gated as an unstable feature -error: aborting due to 2 previous errors +error: aborting due to 4 previous errors For more information about this error, try `rustc --explain E0277`. diff --git a/src/test/ui/feature-gates/feature-gate-unsized_locals.stderr b/src/test/ui/feature-gates/feature-gate-unsized_locals.stderr index c4507843e36..9aeeb88cf04 100644 --- a/src/test/ui/feature-gates/feature-gate-unsized_locals.stderr +++ b/src/test/ui/feature-gates/feature-gate-unsized_locals.stderr @@ -6,6 +6,10 @@ LL | fn f(f: dyn FnOnce()) {} | = help: the trait `Sized` is not implemented for `(dyn FnOnce() + 'static)` = help: unsized fn params are gated as an unstable feature +help: you can use `impl Trait` as the argument type + | +LL | fn f(f: impl FnOnce()) {} + | ~~~~ help: function arguments must have a statically known size, borrowed types always have a known size | LL | fn f(f: &dyn FnOnce()) {} diff --git a/src/test/ui/fmt/ifmt-bad-arg.stderr b/src/test/ui/fmt/ifmt-bad-arg.stderr index 1b595a50e99..a8a2a47fe46 100644 --- a/src/test/ui/fmt/ifmt-bad-arg.stderr +++ b/src/test/ui/fmt/ifmt-bad-arg.stderr @@ -309,9 +309,6 @@ LL | println!("{} {:.*} {}", 1, 3.2, 4); found reference `&{float}` note: associated function defined here --> $SRC_DIR/core/src/fmt/mod.rs:LL:COL - | -LL | pub fn from_usize(x: &usize) -> ArgumentV1<'_> { - | ^^^^^^^^^^ = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0308]: mismatched types @@ -327,9 +324,6 @@ LL | println!("{} {:07$.*} {}", 1, 3.2, 4); found reference `&{float}` note: associated function defined here --> $SRC_DIR/core/src/fmt/mod.rs:LL:COL - | -LL | pub fn from_usize(x: &usize) -> ArgumentV1<'_> { - | ^^^^^^^^^^ = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to 38 previous errors diff --git a/src/test/ui/fmt/ifmt-unimpl.stderr b/src/test/ui/fmt/ifmt-unimpl.stderr index 0e34f913511..be321c3c5c0 100644 --- a/src/test/ui/fmt/ifmt-unimpl.stderr +++ b/src/test/ui/fmt/ifmt-unimpl.stderr @@ -17,9 +17,6 @@ LL | format!("{:X}", "3"); = note: required for `&str` to implement `UpperHex` note: required by a bound in `ArgumentV1::<'a>::new_upper_hex` --> $SRC_DIR/core/src/fmt/mod.rs:LL:COL - | -LL | arg_new!(new_upper_hex, UpperHex); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `ArgumentV1::<'a>::new_upper_hex` = note: this error originates in the macro `$crate::__export::format_args` which comes from the expansion of the macro `arg_new` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to previous error diff --git a/src/test/ui/functions-closures/fn-help-with-err.stderr b/src/test/ui/functions-closures/fn-help-with-err.stderr index 2296666219e..463ac7684ec 100644 --- a/src/test/ui/functions-closures/fn-help-with-err.stderr +++ b/src/test/ui/functions-closures/fn-help-with-err.stderr @@ -17,11 +17,11 @@ note: `Bar` defines an item `bar`, perhaps you need to implement it LL | trait Bar { | ^^^^^^^^^ -error[E0599]: no method named `bar` found for struct `Arc<[closure@$DIR/fn-help-with-err.rs:22:36: 22:38]>` in the current scope +error[E0599]: no method named `bar` found for struct `Arc<[closure@fn-help-with-err.rs:22:36]>` in the current scope --> $DIR/fn-help-with-err.rs:23:10 | LL | arc2.bar(); - | ^^^ method not found in `Arc<[closure@$DIR/fn-help-with-err.rs:22:36: 22:38]>` + | ^^^ method not found in `Arc<[closure@fn-help-with-err.rs:22:36]>` | = help: items from traits can only be used if the trait is implemented and in scope note: `Bar` defines an item `bar`, perhaps you need to implement it diff --git a/src/test/ui/generator/issue-102645.stderr b/src/test/ui/generator/issue-102645.stderr index 7b4d5021325..afb39c9e594 100644 --- a/src/test/ui/generator/issue-102645.stderr +++ b/src/test/ui/generator/issue-102645.stderr @@ -6,9 +6,6 @@ LL | Pin::new(&mut b).resume(); | note: associated function defined here --> $SRC_DIR/core/src/ops/generator.rs:LL:COL - | -LL | fn resume(self: Pin<&mut Self>, arg: R) -> GeneratorState<Self::Yield, Self::Return>; - | ^^^^^^ help: provide the argument | LL | Pin::new(&mut b).resume(()); diff --git a/src/test/ui/generator/sized-yield.stderr b/src/test/ui/generator/sized-yield.stderr index ea2a48d13ce..fb34540d969 100644 --- a/src/test/ui/generator/sized-yield.stderr +++ b/src/test/ui/generator/sized-yield.stderr @@ -20,9 +20,6 @@ LL | Pin::new(&mut gen).resume(()); = help: the trait `Sized` is not implemented for `str` note: required by a bound in `GeneratorState` --> $SRC_DIR/core/src/ops/generator.rs:LL:COL - | -LL | pub enum GeneratorState<Y, R> { - | ^ required by this bound in `GeneratorState` error: aborting due to 2 previous errors diff --git a/src/test/ui/generic-associated-types/issue-101020.stderr b/src/test/ui/generic-associated-types/issue-101020.stderr index b4e94cb83f7..422ac548427 100644 --- a/src/test/ui/generic-associated-types/issue-101020.stderr +++ b/src/test/ui/generic-associated-types/issue-101020.stderr @@ -1,10 +1,8 @@ error[E0277]: the trait bound `for<'a> &'a mut (): Foo<&'a mut ()>` is not satisfied - --> $DIR/issue-101020.rs:31:5 + --> $DIR/issue-101020.rs:31:22 | LL | (&mut EmptyIter).consume(()); - | ^^^^^^^^^^^^^^^^ ------- required by a bound introduced by this call - | | - | the trait `for<'a> Foo<&'a mut ()>` is not implemented for `&'a mut ()` + | ^^^^^^^ the trait `for<'a> Foo<&'a mut ()>` is not implemented for `&'a mut ()` | note: required for `&'a mut ()` to implement `for<'a> FuncInput<'a, &'a mut ()>` --> $DIR/issue-101020.rs:27:20 diff --git a/src/test/ui/generics/wrong-number-of-args.stderr b/src/test/ui/generics/wrong-number-of-args.stderr index 0475eb908a7..b48966a1a1e 100644 --- a/src/test/ui/generics/wrong-number-of-args.stderr +++ b/src/test/ui/generics/wrong-number-of-args.stderr @@ -889,11 +889,6 @@ error[E0107]: missing generics for struct `HashMap` LL | type A = HashMap; | ^^^^^^^ expected at least 2 generic arguments | -note: struct defined here, with at least 2 generic parameters: `K`, `V` - --> $SRC_DIR/std/src/collections/hash/map.rs:LL:COL - | -LL | pub struct HashMap<K, V, S = RandomState> { - | ^^^^^^^ - - help: add missing generic arguments | LL | type A = HashMap<K, V>; @@ -907,11 +902,6 @@ LL | type B = HashMap<String>; | | | expected at least 2 generic arguments | -note: struct defined here, with at least 2 generic parameters: `K`, `V` - --> $SRC_DIR/std/src/collections/hash/map.rs:LL:COL - | -LL | pub struct HashMap<K, V, S = RandomState> { - | ^^^^^^^ - - help: add missing generic argument | LL | type B = HashMap<String, V>; @@ -924,12 +914,6 @@ LL | type C = HashMap<'static>; | ^^^^^^^--------- help: remove these generics | | | expected 0 lifetime arguments - | -note: struct defined here, with 0 lifetime parameters - --> $SRC_DIR/std/src/collections/hash/map.rs:LL:COL - | -LL | pub struct HashMap<K, V, S = RandomState> { - | ^^^^^^^ error[E0107]: this struct takes at least 2 generic arguments but 0 generic arguments were supplied --> $DIR/wrong-number-of-args.rs:318:18 @@ -937,11 +921,6 @@ error[E0107]: this struct takes at least 2 generic arguments but 0 generic argum LL | type C = HashMap<'static>; | ^^^^^^^ expected at least 2 generic arguments | -note: struct defined here, with at least 2 generic parameters: `K`, `V` - --> $SRC_DIR/std/src/collections/hash/map.rs:LL:COL - | -LL | pub struct HashMap<K, V, S = RandomState> { - | ^^^^^^^ - - help: add missing generic arguments | LL | type C = HashMap<'static, K, V>; @@ -954,12 +933,6 @@ LL | type D = HashMap<usize, String, char, f64>; | ^^^^^^^ --- help: remove this generic argument | | | expected at most 3 generic arguments - | -note: struct defined here, with at most 3 generic parameters: `K`, `V`, `S` - --> $SRC_DIR/std/src/collections/hash/map.rs:LL:COL - | -LL | pub struct HashMap<K, V, S = RandomState> { - | ^^^^^^^ - - --------------- error[E0107]: this struct takes at least 2 generic arguments but 0 generic arguments were supplied --> $DIR/wrong-number-of-args.rs:328:18 @@ -967,11 +940,6 @@ error[E0107]: this struct takes at least 2 generic arguments but 0 generic argum LL | type E = HashMap<>; | ^^^^^^^ expected at least 2 generic arguments | -note: struct defined here, with at least 2 generic parameters: `K`, `V` - --> $SRC_DIR/std/src/collections/hash/map.rs:LL:COL - | -LL | pub struct HashMap<K, V, S = RandomState> { - | ^^^^^^^ - - help: add missing generic arguments | LL | type E = HashMap<K, V>; @@ -983,11 +951,6 @@ error[E0107]: missing generics for enum `Result` LL | type A = Result; | ^^^^^^ expected 2 generic arguments | -note: enum defined here, with 2 generic parameters: `T`, `E` - --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | pub enum Result<T, E> { - | ^^^^^^ - - help: add missing generic arguments | LL | type A = Result<T, E>; @@ -1001,11 +964,6 @@ LL | type B = Result<String>; | | | expected 2 generic arguments | -note: enum defined here, with 2 generic parameters: `T`, `E` - --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | pub enum Result<T, E> { - | ^^^^^^ - - help: add missing generic argument | LL | type B = Result<String, E>; @@ -1018,12 +976,6 @@ LL | type C = Result<'static>; | ^^^^^^--------- help: remove these generics | | | expected 0 lifetime arguments - | -note: enum defined here, with 0 lifetime parameters - --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | pub enum Result<T, E> { - | ^^^^^^ error[E0107]: this enum takes 2 generic arguments but 0 generic arguments were supplied --> $DIR/wrong-number-of-args.rs:342:18 @@ -1031,11 +983,6 @@ error[E0107]: this enum takes 2 generic arguments but 0 generic arguments were s LL | type C = Result<'static>; | ^^^^^^ expected 2 generic arguments | -note: enum defined here, with 2 generic parameters: `T`, `E` - --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | pub enum Result<T, E> { - | ^^^^^^ - - help: add missing generic arguments | LL | type C = Result<'static, T, E>; @@ -1048,12 +995,6 @@ LL | type D = Result<usize, String, char>; | ^^^^^^ ---- help: remove this generic argument | | | expected 2 generic arguments - | -note: enum defined here, with 2 generic parameters: `T`, `E` - --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | pub enum Result<T, E> { - | ^^^^^^ - - error[E0107]: this enum takes 2 generic arguments but 0 generic arguments were supplied --> $DIR/wrong-number-of-args.rs:352:18 @@ -1061,11 +1002,6 @@ error[E0107]: this enum takes 2 generic arguments but 0 generic arguments were s LL | type E = Result<>; | ^^^^^^ expected 2 generic arguments | -note: enum defined here, with 2 generic parameters: `T`, `E` - --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | pub enum Result<T, E> { - | ^^^^^^ - - help: add missing generic arguments | LL | type E = Result<T, E>; diff --git a/src/test/ui/higher-rank-trait-bounds/hang-on-deeply-nested-dyn.rs b/src/test/ui/higher-rank-trait-bounds/hang-on-deeply-nested-dyn.rs new file mode 100644 index 00000000000..d34b7a29623 --- /dev/null +++ b/src/test/ui/higher-rank-trait-bounds/hang-on-deeply-nested-dyn.rs @@ -0,0 +1,16 @@ +// normalize-stderr-test: "long-type-\d+" -> "long-type-hash" + +fn id( + f: &dyn Fn(u32), +) -> &dyn Fn( + &dyn Fn( + &dyn Fn( + &dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(u32))))))))), + ), + ), +) { + f + //~^ ERROR mismatched types +} + +fn main() {} diff --git a/src/test/ui/higher-rank-trait-bounds/hang-on-deeply-nested-dyn.stderr b/src/test/ui/higher-rank-trait-bounds/hang-on-deeply-nested-dyn.stderr new file mode 100644 index 00000000000..71e196c3227 --- /dev/null +++ b/src/test/ui/higher-rank-trait-bounds/hang-on-deeply-nested-dyn.stderr @@ -0,0 +1,22 @@ +error[E0308]: mismatched types + --> $DIR/hang-on-deeply-nested-dyn.rs:12:5 + | +LL | ) -> &dyn Fn( + | ______- +LL | | &dyn Fn( +LL | | &dyn Fn( +LL | | &dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(&dyn Fn(u32))))))))), +LL | | ), +LL | | ), +LL | | ) { + | |_- expected `&dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn Fn(u32) + 'a)) + 'a)) + 'a)) + 'a)) + 'a)) + 'a)) + 'a)) + 'a)) + 'a)) + 'a)) + 'a))` because of return type +LL | f + | ^ expected reference, found `u32` + | + = note: expected reference `&dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a (dyn for<'a> Fn(&'a ...) + 'a)) + 'a)) + 'a))` + the full type name has been written to '$TEST_BUILD_DIR/higher-rank-trait-bounds/hang-on-deeply-nested-dyn/hang-on-deeply-nested-dyn.long-type-hash.txt' + found reference `&dyn Fn(u32)` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0308`. diff --git a/src/test/ui/higher-rank-trait-bounds/issue-30786.stderr b/src/test/ui/higher-rank-trait-bounds/issue-30786.stderr index c1e235441d6..0458d2535f2 100644 --- a/src/test/ui/higher-rank-trait-bounds/issue-30786.stderr +++ b/src/test/ui/higher-rank-trait-bounds/issue-30786.stderr @@ -1,4 +1,4 @@ -error[E0599]: the method `filterx` exists for struct `Map<Repeat, [closure@$DIR/issue-30786.rs:117:27: 117:34]>`, but its trait bounds were not satisfied +error[E0599]: the method `filterx` exists for struct `Map<Repeat, [closure@issue-30786.rs:117:27]>`, but its trait bounds were not satisfied --> $DIR/issue-30786.rs:118:22 | LL | pub struct Map<S, F> { @@ -8,7 +8,7 @@ LL | pub struct Map<S, F> { | doesn't satisfy `_: StreamExt` ... LL | let filter = map.filterx(|x: &_| true); - | ^^^^^^^ method cannot be called on `Map<Repeat, [closure@$DIR/issue-30786.rs:117:27: 117:34]>` due to unsatisfied trait bounds + | ^^^^^^^ method cannot be called on `Map<Repeat, [closure@issue-30786.rs:117:27]>` due to unsatisfied trait bounds | note: the following trait bounds were not satisfied: `&'a mut &Map<Repeat, [closure@$DIR/issue-30786.rs:117:27: 117:34]>: Stream` @@ -19,7 +19,7 @@ note: the following trait bounds were not satisfied: LL | impl<T> StreamExt for T where for<'a> &'a mut T: Stream {} | --------- - ^^^^^^ unsatisfied trait bound introduced here -error[E0599]: the method `countx` exists for struct `Filter<Map<Repeat, for<'a> fn(&'a u64) -> &'a u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:129:30: 129:37]>`, but its trait bounds were not satisfied +error[E0599]: the method `countx` exists for struct `Filter<Map<Repeat, for<'a> fn(&'a u64) -> &'a u64 {identity::<u64>}>, [closure@issue-30786.rs:129:30]>`, but its trait bounds were not satisfied --> $DIR/issue-30786.rs:130:24 | LL | pub struct Filter<S, F> { @@ -29,7 +29,7 @@ LL | pub struct Filter<S, F> { | doesn't satisfy `_: StreamExt` ... LL | let count = filter.countx(); - | ^^^^^^ method cannot be called on `Filter<Map<Repeat, for<'a> fn(&'a u64) -> &'a u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:129:30: 129:37]>` due to unsatisfied trait bounds + | ^^^^^^ method cannot be called due to unsatisfied trait bounds | note: the following trait bounds were not satisfied: `&'a mut &Filter<Map<Repeat, for<'a> fn(&'a u64) -> &'a u64 {identity::<u64>}>, [closure@$DIR/issue-30786.rs:129:30: 129:37]>: Stream` diff --git a/src/test/ui/higher-rank-trait-bounds/issue-62203-hrtb-ice.stderr b/src/test/ui/higher-rank-trait-bounds/issue-62203-hrtb-ice.stderr index ab5598e364f..fdd192f4313 100644 --- a/src/test/ui/higher-rank-trait-bounds/issue-62203-hrtb-ice.stderr +++ b/src/test/ui/higher-rank-trait-bounds/issue-62203-hrtb-ice.stderr @@ -30,7 +30,7 @@ LL | where LL | F: for<'r> T0<'r, (<Self as Ty<'r>>::V,), O = <B as Ty<'r>>::V>, | ^^^^^^^^^^^^^^^^^^^^ required by this bound in `T1::m` -error[E0271]: expected `[closure@$DIR/issue-62203-hrtb-ice.rs:42:16: 42:19]` to be a closure that returns `Unit3`, but it returns `Unit4` +error[E0271]: expected `[closure@issue-62203-hrtb-ice.rs:42:16]` to be a closure that returns `Unit3`, but it returns `Unit4` --> $DIR/issue-62203-hrtb-ice.rs:39:9 | LL | let v = Unit2.m( diff --git a/src/test/ui/illegal-sized-bound/mutability-mismatch.rs b/src/test/ui/illegal-sized-bound/mutability-mismatch.rs new file mode 100644 index 00000000000..deb84f6fe97 --- /dev/null +++ b/src/test/ui/illegal-sized-bound/mutability-mismatch.rs @@ -0,0 +1,34 @@ +struct MutType; + +pub trait MutTrait { + fn function(&mut self) + where + Self: Sized; + //~^ this has a `Sized` requirement +} + +impl MutTrait for MutType { + fn function(&mut self) {} +} + +struct Type; + +pub trait Trait { + fn function(&self) + where + Self: Sized; + //~^ this has a `Sized` requirement +} + +impl Trait for Type { + fn function(&self) {} +} + +fn main() { + (&MutType as &dyn MutTrait).function(); + //~^ ERROR the `function` method cannot be invoked on a trait object + //~| NOTE you need `&mut dyn MutTrait` instead of `&dyn MutTrait` + (&mut Type as &mut dyn Trait).function(); + //~^ ERROR the `function` method cannot be invoked on a trait object + //~| NOTE you need `&dyn Trait` instead of `&mut dyn Trait` +} diff --git a/src/test/ui/illegal-sized-bound/mutability-mismatch.stderr b/src/test/ui/illegal-sized-bound/mutability-mismatch.stderr new file mode 100644 index 00000000000..dbbf79a4f1a --- /dev/null +++ b/src/test/ui/illegal-sized-bound/mutability-mismatch.stderr @@ -0,0 +1,24 @@ +error: the `function` method cannot be invoked on a trait object + --> $DIR/mutability-mismatch.rs:28:33 + | +LL | Self: Sized; + | ----- this has a `Sized` requirement +... +LL | (&MutType as &dyn MutTrait).function(); + | ^^^^^^^^ + | + = note: you need `&mut dyn MutTrait` instead of `&dyn MutTrait` + +error: the `function` method cannot be invoked on a trait object + --> $DIR/mutability-mismatch.rs:31:35 + | +LL | Self: Sized; + | ----- this has a `Sized` requirement +... +LL | (&mut Type as &mut dyn Trait).function(); + | ^^^^^^^^ + | + = note: you need `&dyn Trait` instead of `&mut dyn Trait` + +error: aborting due to 2 previous errors + diff --git a/src/test/ui/illegal-sized-bound/regular.rs b/src/test/ui/illegal-sized-bound/regular.rs new file mode 100644 index 00000000000..7abd27ef983 --- /dev/null +++ b/src/test/ui/illegal-sized-bound/regular.rs @@ -0,0 +1,32 @@ +struct MutType; + +pub trait MutTrait { + fn function(&mut self) + where + Self: Sized; + //~^ this has a `Sized` requirement +} + +impl MutTrait for MutType { + fn function(&mut self) {} +} + +struct Type; + +pub trait Trait { + fn function(&self) + where + Self: Sized; + //~^ this has a `Sized` requirement +} + +impl Trait for Type { + fn function(&self) {} +} + +fn main() { + (&mut MutType as &mut dyn MutTrait).function(); + //~^ ERROR the `function` method cannot be invoked on a trait object + (&Type as &dyn Trait).function(); + //~^ ERROR the `function` method cannot be invoked on a trait object +} diff --git a/src/test/ui/illegal-sized-bound/regular.stderr b/src/test/ui/illegal-sized-bound/regular.stderr new file mode 100644 index 00000000000..7f3744145d9 --- /dev/null +++ b/src/test/ui/illegal-sized-bound/regular.stderr @@ -0,0 +1,20 @@ +error: the `function` method cannot be invoked on a trait object + --> $DIR/regular.rs:28:41 + | +LL | Self: Sized; + | ----- this has a `Sized` requirement +... +LL | (&mut MutType as &mut dyn MutTrait).function(); + | ^^^^^^^^ + +error: the `function` method cannot be invoked on a trait object + --> $DIR/regular.rs:30:27 + | +LL | Self: Sized; + | ----- this has a `Sized` requirement +... +LL | (&Type as &dyn Trait).function(); + | ^^^^^^^^ + +error: aborting due to 2 previous errors + diff --git a/src/test/ui/impl-trait/dyn-trait-return-should-be-impl-trait.stderr b/src/test/ui/impl-trait/dyn-trait-return-should-be-impl-trait.stderr index f90399b6b94..7f73d5e12d1 100644 --- a/src/test/ui/impl-trait/dyn-trait-return-should-be-impl-trait.stderr +++ b/src/test/ui/impl-trait/dyn-trait-return-should-be-impl-trait.stderr @@ -70,10 +70,6 @@ error[E0746]: return type cannot have an unboxed trait object LL | fn bak() -> dyn Trait { unimplemented!() } | ^^^^^^^^^ doesn't have a size known at compile-time | -help: use some type `T` that is `T: Sized` as the return type if all return paths have the same type - | -LL | fn bak() -> T { unimplemented!() } - | ~ help: use `impl Trait` as the return type if all return paths have the same type but you want to expose only the trait in the signature | LL | fn bak() -> impl Trait { unimplemented!() } diff --git a/src/test/ui/impl-trait/impl-generic-mismatch.stderr b/src/test/ui/impl-trait/impl-generic-mismatch.stderr index 542f02d7ec5..973b65bfd62 100644 --- a/src/test/ui/impl-trait/impl-generic-mismatch.stderr +++ b/src/test/ui/impl-trait/impl-generic-mismatch.stderr @@ -46,11 +46,9 @@ error[E0643]: method `hash` has incompatible signature for trait | LL | fn hash(&self, hasher: &mut impl Hasher) {} | ^^^^^^^^^^^ expected generic parameter, found `impl Trait` + --> $SRC_DIR/core/src/hash/mod.rs:LL:COL | - ::: $SRC_DIR/core/src/hash/mod.rs:LL:COL - | -LL | fn hash<H: Hasher>(&self, state: &mut H); - | - declaration in trait here + = note: declaration in trait here error: aborting due to 4 previous errors diff --git a/src/test/ui/impl-trait/in-trait/wf-bounds.stderr b/src/test/ui/impl-trait/in-trait/wf-bounds.stderr index 92e36841b70..03cc4c2b93b 100644 --- a/src/test/ui/impl-trait/in-trait/wf-bounds.stderr +++ b/src/test/ui/impl-trait/in-trait/wf-bounds.stderr @@ -7,9 +7,6 @@ LL | fn nya() -> impl Wf<Vec<[u8]>>; = help: the trait `Sized` is not implemented for `[u8]` note: required by a bound in `Vec` --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL - | -LL | pub struct Vec<T, #[unstable(feature = "allocator_api", issue = "32838")] A: Allocator = Global> { - | ^ required by this bound in `Vec` error[E0277]: the size for values of type `[u8]` cannot be known at compilation time --> $DIR/wf-bounds.rs:12:23 diff --git a/src/test/ui/impl-trait/issues/issue-62742.stderr b/src/test/ui/impl-trait/issues/issue-62742.stderr index 34f4dc2cef3..bc342dc4689 100644 --- a/src/test/ui/impl-trait/issues/issue-62742.stderr +++ b/src/test/ui/impl-trait/issues/issue-62742.stderr @@ -25,7 +25,7 @@ LL | pub struct SafeImpl<T: ?Sized, A: Raw<T>>(PhantomData<(A, T)>); | = note: the following trait bounds were not satisfied: `RawImpl<()>: Raw<()>` -note: the following trait must be implemented +note: the trait `Raw` must be implemented --> $DIR/issue-62742.rs:12:1 | LL | pub trait Raw<T: ?Sized> { diff --git a/src/test/ui/impl-trait/issues/issue-86719.stderr b/src/test/ui/impl-trait/issues/issue-86719.stderr index 09047cdcbe1..7592418fdfd 100644 --- a/src/test/ui/impl-trait/issues/issue-86719.stderr +++ b/src/test/ui/impl-trait/issues/issue-86719.stderr @@ -20,8 +20,8 @@ LL | |_| true | help: consider giving this closure parameter an explicit type | -LL | |_: _| true - | +++ +LL | |_: /* Type */| true + | ++++++++++++ error: aborting due to 3 previous errors diff --git a/src/test/ui/impl-trait/issues/issue-92305.stderr b/src/test/ui/impl-trait/issues/issue-92305.stderr index 34d5c2d61dc..f09c14d3df1 100644 --- a/src/test/ui/impl-trait/issues/issue-92305.stderr +++ b/src/test/ui/impl-trait/issues/issue-92305.stderr @@ -4,11 +4,6 @@ error[E0107]: missing generics for struct `Vec` LL | fn f<T>(data: &[T]) -> impl Iterator<Item = Vec> { | ^^^ expected at least 1 generic argument | -note: struct defined here, with at least 1 generic parameter: `T` - --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL - | -LL | pub struct Vec<T, #[unstable(feature = "allocator_api", issue = "32838")] A: Allocator = Global> { - | ^^^ - help: add missing generic argument | LL | fn f<T>(data: &[T]) -> impl Iterator<Item = Vec<T>> { diff --git a/src/test/ui/impl-trait/no-method-suggested-traits.stderr b/src/test/ui/impl-trait/no-method-suggested-traits.stderr index 3d4ae11e576..548c89d0a38 100644 --- a/src/test/ui/impl-trait/no-method-suggested-traits.stderr +++ b/src/test/ui/impl-trait/no-method-suggested-traits.stderr @@ -145,11 +145,11 @@ note: `foo::Bar` defines an item `method2`, perhaps you need to implement it LL | pub trait Bar { | ^^^^^^^^^^^^^ -error[E0599]: no method named `method2` found for struct `no_method_suggested_traits::Foo` in the current scope +error[E0599]: no method named `method2` found for struct `Foo` in the current scope --> $DIR/no-method-suggested-traits.rs:50:37 | LL | no_method_suggested_traits::Foo.method2(); - | ^^^^^^^ method not found in `no_method_suggested_traits::Foo` + | ^^^^^^^ method not found in `Foo` | = help: items from traits can only be used if the trait is implemented and in scope note: `foo::Bar` defines an item `method2`, perhaps you need to implement it @@ -158,11 +158,11 @@ note: `foo::Bar` defines an item `method2`, perhaps you need to implement it LL | pub trait Bar { | ^^^^^^^^^^^^^ -error[E0599]: no method named `method2` found for struct `Rc<&mut Box<&no_method_suggested_traits::Foo>>` in the current scope +error[E0599]: no method named `method2` found for struct `Rc<&mut Box<&Foo>>` in the current scope --> $DIR/no-method-suggested-traits.rs:52:71 | LL | std::rc::Rc::new(&mut Box::new(&no_method_suggested_traits::Foo)).method2(); - | ^^^^^^^ method not found in `Rc<&mut Box<&no_method_suggested_traits::Foo>>` + | ^^^^^^^ method not found in `Rc<&mut Box<&Foo>>` | = help: items from traits can only be used if the trait is implemented and in scope note: `foo::Bar` defines an item `method2`, perhaps you need to implement it @@ -171,11 +171,11 @@ note: `foo::Bar` defines an item `method2`, perhaps you need to implement it LL | pub trait Bar { | ^^^^^^^^^^^^^ -error[E0599]: no method named `method2` found for enum `no_method_suggested_traits::Bar` in the current scope +error[E0599]: no method named `method2` found for enum `Bar` in the current scope --> $DIR/no-method-suggested-traits.rs:54:40 | LL | no_method_suggested_traits::Bar::X.method2(); - | ^^^^^^^ method not found in `no_method_suggested_traits::Bar` + | ^^^^^^^ method not found in `Bar` | = help: items from traits can only be used if the trait is implemented and in scope note: `foo::Bar` defines an item `method2`, perhaps you need to implement it @@ -184,11 +184,11 @@ note: `foo::Bar` defines an item `method2`, perhaps you need to implement it LL | pub trait Bar { | ^^^^^^^^^^^^^ -error[E0599]: no method named `method2` found for struct `Rc<&mut Box<&no_method_suggested_traits::Bar>>` in the current scope +error[E0599]: no method named `method2` found for struct `Rc<&mut Box<&Bar>>` in the current scope --> $DIR/no-method-suggested-traits.rs:56:74 | LL | std::rc::Rc::new(&mut Box::new(&no_method_suggested_traits::Bar::X)).method2(); - | ^^^^^^^ method not found in `Rc<&mut Box<&no_method_suggested_traits::Bar>>` + | ^^^^^^^ method not found in `Rc<&mut Box<&Bar>>` | = help: items from traits can only be used if the trait is implemented and in scope note: `foo::Bar` defines an item `method2`, perhaps you need to implement it @@ -255,29 +255,29 @@ error[E0599]: no method named `method3` found for struct `Rc<&mut Box<&usize>>` LL | std::rc::Rc::new(&mut Box::new(&1_usize)).method3(); | ^^^^^^^ method not found in `Rc<&mut Box<&usize>>` -error[E0599]: no method named `method3` found for struct `no_method_suggested_traits::Foo` in the current scope +error[E0599]: no method named `method3` found for struct `Foo` in the current scope --> $DIR/no-method-suggested-traits.rs:71:37 | LL | no_method_suggested_traits::Foo.method3(); - | ^^^^^^^ method not found in `no_method_suggested_traits::Foo` + | ^^^^^^^ method not found in `Foo` -error[E0599]: no method named `method3` found for struct `Rc<&mut Box<&no_method_suggested_traits::Foo>>` in the current scope +error[E0599]: no method named `method3` found for struct `Rc<&mut Box<&Foo>>` in the current scope --> $DIR/no-method-suggested-traits.rs:72:71 | LL | std::rc::Rc::new(&mut Box::new(&no_method_suggested_traits::Foo)).method3(); - | ^^^^^^^ method not found in `Rc<&mut Box<&no_method_suggested_traits::Foo>>` + | ^^^^^^^ method not found in `Rc<&mut Box<&Foo>>` -error[E0599]: no method named `method3` found for enum `no_method_suggested_traits::Bar` in the current scope +error[E0599]: no method named `method3` found for enum `Bar` in the current scope --> $DIR/no-method-suggested-traits.rs:74:40 | LL | no_method_suggested_traits::Bar::X.method3(); - | ^^^^^^^ method not found in `no_method_suggested_traits::Bar` + | ^^^^^^^ method not found in `Bar` -error[E0599]: no method named `method3` found for struct `Rc<&mut Box<&no_method_suggested_traits::Bar>>` in the current scope +error[E0599]: no method named `method3` found for struct `Rc<&mut Box<&Bar>>` in the current scope --> $DIR/no-method-suggested-traits.rs:75:74 | LL | std::rc::Rc::new(&mut Box::new(&no_method_suggested_traits::Bar::X)).method3(); - | ^^^^^^^ method not found in `Rc<&mut Box<&no_method_suggested_traits::Bar>>` + | ^^^^^^^ method not found in `Rc<&mut Box<&Bar>>` error: aborting due to 24 previous errors diff --git a/src/test/ui/imports/extern-prelude-extern-crate-restricted-shadowing.stderr b/src/test/ui/imports/extern-prelude-extern-crate-restricted-shadowing.stderr index c31c8840381..ade479ed102 100644 --- a/src/test/ui/imports/extern-prelude-extern-crate-restricted-shadowing.stderr +++ b/src/test/ui/imports/extern-prelude-extern-crate-restricted-shadowing.stderr @@ -24,11 +24,8 @@ LL | extern crate std as Vec; ... LL | define_vec!(); | ------------- in this macro invocation -note: `Vec` could also refer to the struct defined here +note: `Vec` could also refer to a struct from prelude --> $SRC_DIR/std/src/prelude/mod.rs:LL:COL - | -LL | pub use super::v1::*; - | ^^^^^^^^^^^^ = note: this error originates in the macro `define_vec` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to 2 previous errors diff --git a/src/test/ui/inference/erase-type-params-in-label.stderr b/src/test/ui/inference/erase-type-params-in-label.stderr index 5c52e7bcfab..9be18286480 100644 --- a/src/test/ui/inference/erase-type-params-in-label.stderr +++ b/src/test/ui/inference/erase-type-params-in-label.stderr @@ -10,10 +10,10 @@ note: required by a bound in `foo` | LL | fn foo<T, K, W: Default, Z: Default>(t: T, k: K) -> Foo<T, K, W, Z> { | ^^^^^^^ required by this bound in `foo` -help: consider specifying the type arguments in the function call +help: consider giving `foo` an explicit type, where the type for type parameter `W` is specified | -LL | let foo = foo::<T, K, W, Z>(1, ""); - | ++++++++++++++ +LL | let foo: Foo<i32, &str, W, Z> = foo(1, ""); + | ++++++++++++++++++++++ error[E0283]: type annotations needed for `Bar<i32, &str, Z>` --> $DIR/erase-type-params-in-label.rs:5:9 @@ -27,10 +27,10 @@ note: required by a bound in `bar` | LL | fn bar<T, K, Z: Default>(t: T, k: K) -> Bar<T, K, Z> { | ^^^^^^^ required by this bound in `bar` -help: consider specifying the type arguments in the function call +help: consider giving `bar` an explicit type, where the type for type parameter `Z` is specified | -LL | let bar = bar::<T, K, Z>(1, ""); - | +++++++++++ +LL | let bar: Bar<i32, &str, Z> = bar(1, ""); + | +++++++++++++++++++ error: aborting due to 2 previous errors diff --git a/src/test/ui/inference/issue-71732.stderr b/src/test/ui/inference/issue-71732.stderr index 79bee33280d..01b37f2acaa 100644 --- a/src/test/ui/inference/issue-71732.stderr +++ b/src/test/ui/inference/issue-71732.stderr @@ -12,9 +12,6 @@ LL | .get(&"key".into()) where T: ?Sized; note: required by a bound in `HashMap::<K, V, S>::get` --> $SRC_DIR/std/src/collections/hash/map.rs:LL:COL - | -LL | K: Borrow<Q>, - | ^^^^^^^^^ required by this bound in `HashMap::<K, V, S>::get` help: consider specifying the generic argument | LL | .get::<Q>(&"key".into()) diff --git a/src/test/ui/inference/issue-72690.stderr b/src/test/ui/inference/issue-72690.stderr index d4eeda07366..8eda71ec09b 100644 --- a/src/test/ui/inference/issue-72690.stderr +++ b/src/test/ui/inference/issue-72690.stderr @@ -32,8 +32,8 @@ LL | |x| String::from("x".as_ref()); | help: consider giving this closure parameter an explicit type | -LL | |x: _| String::from("x".as_ref()); - | +++ +LL | |x: /* Type */| String::from("x".as_ref()); + | ++++++++++++ error[E0283]: type annotations needed --> $DIR/issue-72690.rs:12:26 diff --git a/src/test/ui/inline-const/expr-unsafe-err.mir.stderr b/src/test/ui/inline-const/expr-unsafe-err.mir.stderr new file mode 100644 index 00000000000..1bec41e2efa --- /dev/null +++ b/src/test/ui/inline-const/expr-unsafe-err.mir.stderr @@ -0,0 +1,11 @@ +error[E0133]: call to unsafe function is unsafe and requires unsafe function or block + --> $DIR/expr-unsafe-err.rs:8:9 + | +LL | require_unsafe(); + | ^^^^^^^^^^^^^^^^ call to unsafe function + | + = note: consult the function's documentation for information on how to avoid undefined behavior + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0133`. diff --git a/src/test/ui/inline-const/expr-unsafe-err.rs b/src/test/ui/inline-const/expr-unsafe-err.rs new file mode 100644 index 00000000000..adf05d352ea --- /dev/null +++ b/src/test/ui/inline-const/expr-unsafe-err.rs @@ -0,0 +1,11 @@ +// revisions: mir thir +// [thir]compile-flags: -Z thir-unsafeck +#![feature(inline_const)] +const unsafe fn require_unsafe() -> usize { 1 } + +fn main() { + const { + require_unsafe(); + //~^ ERROR [E0133] + } +} diff --git a/src/test/ui/inline-const/expr-unsafe-err.thir.stderr b/src/test/ui/inline-const/expr-unsafe-err.thir.stderr new file mode 100644 index 00000000000..c971e8afb35 --- /dev/null +++ b/src/test/ui/inline-const/expr-unsafe-err.thir.stderr @@ -0,0 +1,11 @@ +error[E0133]: call to unsafe function `require_unsafe` is unsafe and requires unsafe function or block + --> $DIR/expr-unsafe-err.rs:8:9 + | +LL | require_unsafe(); + | ^^^^^^^^^^^^^^^^ call to unsafe function + | + = note: consult the function's documentation for information on how to avoid undefined behavior + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0133`. diff --git a/src/test/ui/inline-const/expr-unsafe.mir.stderr b/src/test/ui/inline-const/expr-unsafe.mir.stderr new file mode 100644 index 00000000000..1ab6e42fba0 --- /dev/null +++ b/src/test/ui/inline-const/expr-unsafe.mir.stderr @@ -0,0 +1,14 @@ +warning: unnecessary `unsafe` block + --> $DIR/expr-unsafe.rs:12:13 + | +LL | unsafe {} + | ^^^^^^ unnecessary `unsafe` block + | +note: the lint level is defined here + --> $DIR/expr-unsafe.rs:4:9 + | +LL | #![warn(unused_unsafe)] + | ^^^^^^^^^^^^^ + +warning: 1 warning emitted + diff --git a/src/test/ui/inline-const/expr-unsafe.rs b/src/test/ui/inline-const/expr-unsafe.rs new file mode 100644 index 00000000000..d71efd33db1 --- /dev/null +++ b/src/test/ui/inline-const/expr-unsafe.rs @@ -0,0 +1,16 @@ +// check-pass +// revisions: mir thir +// [thir]compile-flags: -Z thir-unsafeck +#![warn(unused_unsafe)] +#![feature(inline_const)] +const unsafe fn require_unsafe() -> usize { 1 } + +fn main() { + unsafe { + const { + require_unsafe(); + unsafe {} + //~^ WARNING unnecessary `unsafe` block + } + } +} diff --git a/src/test/ui/inline-const/expr-unsafe.thir.stderr b/src/test/ui/inline-const/expr-unsafe.thir.stderr new file mode 100644 index 00000000000..4737444fb61 --- /dev/null +++ b/src/test/ui/inline-const/expr-unsafe.thir.stderr @@ -0,0 +1,17 @@ +warning: unnecessary `unsafe` block + --> $DIR/expr-unsafe.rs:12:13 + | +LL | unsafe { + | ------ because it's nested under this `unsafe` block +... +LL | unsafe {} + | ^^^^^^ unnecessary `unsafe` block + | +note: the lint level is defined here + --> $DIR/expr-unsafe.rs:4:9 + | +LL | #![warn(unused_unsafe)] + | ^^^^^^^^^^^^^ + +warning: 1 warning emitted + diff --git a/src/test/ui/inline-const/pat-unsafe-err.rs b/src/test/ui/inline-const/pat-unsafe-err.rs new file mode 100644 index 00000000000..e290b438c51 --- /dev/null +++ b/src/test/ui/inline-const/pat-unsafe-err.rs @@ -0,0 +1,17 @@ +// ignore-test This is currently broken +// revisions: mir thir +// [thir]compile-flags: -Z thir-unsafeck + +#![allow(incomplete_features)] +#![feature(inline_const_pat)] + +const unsafe fn require_unsafe() -> usize { 1 } + +fn main() { + match () { + const { + require_unsafe(); + //~^ ERROR [E0133] + } => (), + } +} diff --git a/src/test/ui/inline-const/pat-unsafe.rs b/src/test/ui/inline-const/pat-unsafe.rs new file mode 100644 index 00000000000..bcf7f6e0180 --- /dev/null +++ b/src/test/ui/inline-const/pat-unsafe.rs @@ -0,0 +1,22 @@ +// ignore-test This is currently broken +// check-pass +// revisions: mir thir +// [thir]compile-flags: -Z thir-unsafeck + +#![allow(incomplete_features)] +#![warn(unused_unsafe)] +#![feature(inline_const_pat)] + +const unsafe fn require_unsafe() -> usize { 1 } + +fn main() { + unsafe { + match () { + const { + require_unsafe(); + unsafe {} + //~^ WARNING unnecessary `unsafe` block + } => (), + } + } +} diff --git a/src/test/ui/interior-mutability/interior-mutability.stderr b/src/test/ui/interior-mutability/interior-mutability.stderr index 94f41c92598..034d22591b3 100644 --- a/src/test/ui/interior-mutability/interior-mutability.stderr +++ b/src/test/ui/interior-mutability/interior-mutability.stderr @@ -16,9 +16,6 @@ LL | catch_unwind(|| { x.set(23); }); | ^^ note: required by a bound in `catch_unwind` --> $SRC_DIR/std/src/panic.rs:LL:COL - | -LL | pub fn catch_unwind<F: FnOnce() -> R + UnwindSafe, R>(f: F) -> Result<R> { - | ^^^^^^^^^^ required by this bound in `catch_unwind` error: aborting due to previous error diff --git a/src/test/ui/intrinsics/const-eval-select-bad.stderr b/src/test/ui/intrinsics/const-eval-select-bad.stderr index 3720528ad4e..fd7d061b6b2 100644 --- a/src/test/ui/intrinsics/const-eval-select-bad.stderr +++ b/src/test/ui/intrinsics/const-eval-select-bad.stderr @@ -37,9 +37,6 @@ LL | const_eval_select((), 42, 0xDEADBEEF); = note: wrap the `{integer}` in a closure with no arguments: `|| { /* code */ }` note: required by a bound in `const_eval_select` --> $SRC_DIR/core/src/intrinsics.rs:LL:COL - | -LL | F: FnOnce<ARG, Output = RET>; - | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `const_eval_select` error: this argument must be a function item --> $DIR/const-eval-select-bad.rs:10:31 @@ -62,9 +59,6 @@ LL | const_eval_select((), 42, 0xDEADBEEF); = note: wrap the `{integer}` in a closure with no arguments: `|| { /* code */ }` note: required by a bound in `const_eval_select` --> $SRC_DIR/core/src/intrinsics.rs:LL:COL - | -LL | G: FnOnce<ARG, Output = RET>, - | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `const_eval_select` error[E0271]: expected `fn(i32) -> bool {bar}` to be a fn item that returns `i32`, but it returns `bool` --> $DIR/const-eval-select-bad.rs:32:34 @@ -76,9 +70,6 @@ LL | const_eval_select((1,), foo, bar); | note: required by a bound in `const_eval_select` --> $SRC_DIR/core/src/intrinsics.rs:LL:COL - | -LL | G: FnOnce<ARG, Output = RET>, - | ^^^^^^^^^^^^ required by this bound in `const_eval_select` error[E0631]: type mismatch in function arguments --> $DIR/const-eval-select-bad.rs:37:32 @@ -95,9 +86,6 @@ LL | const_eval_select((true,), foo, baz); found function signature `fn(i32) -> _` note: required by a bound in `const_eval_select` --> $SRC_DIR/core/src/intrinsics.rs:LL:COL - | -LL | F: FnOnce<ARG, Output = RET>; - | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `const_eval_select` error: this argument must be a `const fn` --> $DIR/const-eval-select-bad.rs:42:29 diff --git a/src/test/ui/invalid-compile-flags/branch-protection-missing-pac-ret.BADTARGET.stderr b/src/test/ui/invalid-compile-flags/branch-protection-missing-pac-ret.BADTARGET.stderr index 6bd9c6a0276..52a59190264 100644 --- a/src/test/ui/invalid-compile-flags/branch-protection-missing-pac-ret.BADTARGET.stderr +++ b/src/test/ui/invalid-compile-flags/branch-protection-missing-pac-ret.BADTARGET.stderr @@ -1,4 +1,4 @@ -error: -Zbranch-protection is only supported on aarch64 +error: `-Zbranch-protection` is only supported on aarch64 error: aborting due to previous error diff --git a/src/test/ui/invalid-compile-flags/branch-protection-missing-pac-ret.rs b/src/test/ui/invalid-compile-flags/branch-protection-missing-pac-ret.rs index 4bc4919bc93..1d7ec5cba17 100644 --- a/src/test/ui/invalid-compile-flags/branch-protection-missing-pac-ret.rs +++ b/src/test/ui/invalid-compile-flags/branch-protection-missing-pac-ret.rs @@ -3,7 +3,7 @@ // [BADFLAGS] check-fail // [BADFLAGS] needs-llvm-components: aarch64 // [BADTARGET] compile-flags: --target=x86_64-unknown-linux-gnu -Zbranch-protection=bti -// [BADTARGET] build-fail +// [BADTARGET] check-fail // [BADTARGET] needs-llvm-components: x86 #![crate_type = "lib"] diff --git a/src/test/ui/issues/issue-105330.stderr b/src/test/ui/issues/issue-105330.stderr index 92f2ccb6544..30c380152a5 100644 --- a/src/test/ui/issues/issue-105330.stderr +++ b/src/test/ui/issues/issue-105330.stderr @@ -55,8 +55,10 @@ error[E0271]: type mismatch resolving `<Demo as TraitWAssocConst>::A == 32` --> $DIR/issue-105330.rs:12:11 | LL | foo::<Demo>()(); - | ^^^^ types differ + | ^^^^ expected `32`, found `<Demo as TraitWAssocConst>::A` | + = note: expected constant `32` + found constant `<Demo as TraitWAssocConst>::A` note: required by a bound in `foo` --> $DIR/issue-105330.rs:11:28 | @@ -89,8 +91,10 @@ error[E0271]: type mismatch resolving `<Demo as TraitWAssocConst>::A == 32` --> $DIR/issue-105330.rs:19:11 | LL | foo::<Demo>(); - | ^^^^ types differ + | ^^^^ expected `32`, found `<Demo as TraitWAssocConst>::A` | + = note: expected constant `32` + found constant `<Demo as TraitWAssocConst>::A` note: required by a bound in `foo` --> $DIR/issue-105330.rs:11:28 | diff --git a/src/test/ui/issues/issue-12567.stderr b/src/test/ui/issues/issue-12567.stderr index 3ce659ccd14..7fa06825f0f 100644 --- a/src/test/ui/issues/issue-12567.stderr +++ b/src/test/ui/issues/issue-12567.stderr @@ -11,6 +11,14 @@ LL | (&[hd1, ..], &[hd2, ..]) | --- ...and here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider borrowing the pattern binding + | +LL | (&[], &[ref hd, ..]) | (&[hd, ..], &[]) + | +++ +help: consider borrowing the pattern binding + | +LL | (&[ref hd1, ..], &[hd2, ..]) + | +++ error[E0508]: cannot move out of type `[T]`, a non-copy slice --> $DIR/issue-12567.rs:2:11 @@ -25,6 +33,14 @@ LL | (&[hd1, ..], &[hd2, ..]) | --- ...and here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider borrowing the pattern binding + | +LL | (&[], &[ref hd, ..]) | (&[hd, ..], &[]) + | +++ +help: consider borrowing the pattern binding + | +LL | (&[hd1, ..], &[ref hd2, ..]) + | +++ error: aborting due to 2 previous errors diff --git a/src/test/ui/issues/issue-14091-2.stderr b/src/test/ui/issues/issue-14091-2.stderr index a191afd7980..f8375d4ef90 100644 --- a/src/test/ui/issues/issue-14091-2.stderr +++ b/src/test/ui/issues/issue-14091-2.stderr @@ -9,11 +9,8 @@ note: an implementation of `Not` might be missing for `BytePos` | LL | pub struct BytePos(pub u32); | ^^^^^^^^^^^^^^^^^^ must implement `Not` -note: the following trait must be implemented +note: the trait `Not` must be implemented --> $SRC_DIR/core/src/ops/bit.rs:LL:COL - | -LL | pub trait Not { - | ^^^^^^^^^^^^^ = note: this error originates in the macro `assert` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to previous error diff --git a/src/test/ui/issues/issue-14092.stderr b/src/test/ui/issues/issue-14092.stderr index 7928b3fba27..132e2b101a5 100644 --- a/src/test/ui/issues/issue-14092.stderr +++ b/src/test/ui/issues/issue-14092.stderr @@ -4,13 +4,6 @@ error[E0107]: missing generics for struct `Box` LL | fn fn1(0: Box) {} | ^^^ expected at least 1 generic argument | -note: struct defined here, with at least 1 generic parameter: `T` - --> $SRC_DIR/alloc/src/boxed.rs:LL:COL - | -LL | pub struct Box< - | ^^^ -LL | T: ?Sized, - | - help: add missing generic argument | LL | fn fn1(0: Box<T>) {} diff --git a/src/test/ui/issues/issue-16966.stderr b/src/test/ui/issues/issue-16966.stderr index 8524a62a0a4..60f5190dbd0 100644 --- a/src/test/ui/issues/issue-16966.stderr +++ b/src/test/ui/issues/issue-16966.stderr @@ -5,11 +5,6 @@ LL | panic!(std::default::Default::default()); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type of the type parameter `M` declared on the function `begin_panic` | = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info) -help: consider specifying the generic argument - --> $SRC_DIR/std/src/panic.rs:LL:COL - | -LL | $crate::rt::begin_panic::<M>($msg) - | +++++ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-17546.stderr b/src/test/ui/issues/issue-17546.stderr index 16678c8c8a9..81592320a27 100644 --- a/src/test/ui/issues/issue-17546.stderr +++ b/src/test/ui/issues/issue-17546.stderr @@ -3,11 +3,9 @@ error[E0573]: expected type, found variant `NoResult` | LL | fn new() -> NoResult<MyEnum, String> { | ^^^^^^^^^^^^^^^^^^^^^^^^ + --> $SRC_DIR/core/src/result.rs:LL:COL | - ::: $SRC_DIR/core/src/result.rs:LL:COL - | -LL | pub enum Result<T, E> { - | --------------------- similarly named enum `Result` defined here + = note: similarly named enum `Result` defined here | help: try using the variant's enum | @@ -57,11 +55,9 @@ error[E0573]: expected type, found variant `NoResult` | LL | fn newer() -> NoResult<foo::MyEnum, String> { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + --> $SRC_DIR/core/src/result.rs:LL:COL | - ::: $SRC_DIR/core/src/result.rs:LL:COL - | -LL | pub enum Result<T, E> { - | --------------------- similarly named enum `Result` defined here + = note: similarly named enum `Result` defined here | help: try using the variant's enum | diff --git a/src/test/ui/issues/issue-17651.stderr b/src/test/ui/issues/issue-17651.stderr index efaaeeda2fa..b37811e1955 100644 --- a/src/test/ui/issues/issue-17651.stderr +++ b/src/test/ui/issues/issue-17651.stderr @@ -9,9 +9,6 @@ LL | (|| Box::new(*(&[0][..])))(); = help: the trait `Sized` is not implemented for `[{integer}]` note: required by a bound in `Box::<T>::new` --> $SRC_DIR/alloc/src/boxed.rs:LL:COL - | -LL | impl<T> Box<T> { - | ^ required by this bound in `Box::<T>::new` error: aborting due to previous error diff --git a/src/test/ui/issues/issue-18107.stderr b/src/test/ui/issues/issue-18107.stderr index 28478457b29..1669b550a9b 100644 --- a/src/test/ui/issues/issue-18107.stderr +++ b/src/test/ui/issues/issue-18107.stderr @@ -4,10 +4,6 @@ error[E0746]: return type cannot have an unboxed trait object LL | dyn AbstractRenderer | ^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time | -help: use some type `T` that is `T: Sized` as the return type if all return paths have the same type - | -LL | T - | help: use `impl AbstractRenderer` as the return type if all return paths have the same type but you want to expose only the trait in the signature | LL | impl AbstractRenderer diff --git a/src/test/ui/issues/issue-18159.stderr b/src/test/ui/issues/issue-18159.stderr index 605ff3829d1..5e0589eed43 100644 --- a/src/test/ui/issues/issue-18159.stderr +++ b/src/test/ui/issues/issue-18159.stderr @@ -6,8 +6,8 @@ LL | let x; | help: consider giving `x` an explicit type | -LL | let x: _; - | +++ +LL | let x: /* Type */; + | ++++++++++++ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-18423.stderr b/src/test/ui/issues/issue-18423.stderr index 4711a3f3ce0..bbf79366244 100644 --- a/src/test/ui/issues/issue-18423.stderr +++ b/src/test/ui/issues/issue-18423.stderr @@ -5,12 +5,6 @@ LL | x: Box<'a, isize> | ^^^ -- help: remove this lifetime argument | | | expected 0 lifetime arguments - | -note: struct defined here, with 0 lifetime parameters - --> $SRC_DIR/alloc/src/boxed.rs:LL:COL - | -LL | pub struct Box< - | ^^^ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-20162.stderr b/src/test/ui/issues/issue-20162.stderr index 3f9b3be9851..1c5b76fbfc1 100644 --- a/src/test/ui/issues/issue-20162.stderr +++ b/src/test/ui/issues/issue-20162.stderr @@ -1,16 +1,11 @@ error[E0277]: the trait bound `X: Ord` is not satisfied - --> $DIR/issue-20162.rs:5:5 + --> $DIR/issue-20162.rs:5:7 | LL | b.sort(); - | ^ ---- required by a bound introduced by this call - | | - | the trait `Ord` is not implemented for `X` + | ^^^^ the trait `Ord` is not implemented for `X` | note: required by a bound in `slice::<impl [T]>::sort` --> $SRC_DIR/alloc/src/slice.rs:LL:COL - | -LL | T: Ord, - | ^^^ required by this bound in `slice::<impl [T]>::sort` help: consider annotating `X` with `#[derive(Ord)]` | LL | #[derive(Ord)] diff --git a/src/test/ui/issues/issue-20433.stderr b/src/test/ui/issues/issue-20433.stderr index 9d3bb8b924d..3ae952546a6 100644 --- a/src/test/ui/issues/issue-20433.stderr +++ b/src/test/ui/issues/issue-20433.stderr @@ -7,9 +7,6 @@ LL | fn iceman(c: Vec<[i32]>) {} = help: the trait `Sized` is not implemented for `[i32]` note: required by a bound in `Vec` --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL - | -LL | pub struct Vec<T, #[unstable(feature = "allocator_api", issue = "32838")] A: Allocator = Global> { - | ^ required by this bound in `Vec` error: aborting due to previous error diff --git a/src/test/ui/issues/issue-2151.stderr b/src/test/ui/issues/issue-2151.stderr index 31a8ca5fbfa..c75038b6169 100644 --- a/src/test/ui/issues/issue-2151.stderr +++ b/src/test/ui/issues/issue-2151.stderr @@ -8,8 +8,8 @@ LL | x.clone(); | help: consider giving `x` an explicit type | -LL | let x: _ = panic!(); - | +++ +LL | let x: /* Type */ = panic!(); + | ++++++++++++ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-21974.stderr b/src/test/ui/issues/issue-21974.stderr index 4e010a13653..2d60b18b1f2 100644 --- a/src/test/ui/issues/issue-21974.stderr +++ b/src/test/ui/issues/issue-21974.stderr @@ -4,7 +4,13 @@ error[E0283]: type annotations needed: cannot satisfy `&'a T: Foo` LL | where &'a T : Foo, | ^^^ | - = note: cannot satisfy `&'a T: Foo` +note: multiple `impl`s or `where` clauses satisfying `&'a T: Foo` found + --> $DIR/issue-21974.rs:11:19 + | +LL | where &'a T : Foo, + | ^^^ +LL | &'b T : Foo + | ^^^ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-23024.stderr b/src/test/ui/issues/issue-23024.stderr index dc8b34a70c3..014eb2897b4 100644 --- a/src/test/ui/issues/issue-23024.stderr +++ b/src/test/ui/issues/issue-23024.stderr @@ -13,11 +13,6 @@ error[E0107]: missing generics for trait `Fn` LL | println!("{:?}",(vfnfer[0] as dyn Fn)(3)); | ^^ expected 1 generic argument | -note: trait defined here, with 1 generic parameter: `Args` - --> $SRC_DIR/core/src/ops/function.rs:LL:COL - | -LL | pub trait Fn<Args: Tuple>: FnMut<Args> { - | ^^ ---- help: add missing generic argument | LL | println!("{:?}",(vfnfer[0] as dyn Fn<Args>)(3)); diff --git a/src/test/ui/issues/issue-23966.stderr b/src/test/ui/issues/issue-23966.stderr index 22c4055f54b..8f934481d85 100644 --- a/src/test/ui/issues/issue-23966.stderr +++ b/src/test/ui/issues/issue-23966.stderr @@ -9,9 +9,6 @@ LL | "".chars().fold(|_, _| (), ()); = help: the trait `FnMut<(_, char)>` is not implemented for `()` note: required by a bound in `fold` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | F: FnMut(B, Self::Item) -> B, - | ^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::fold` error: aborting due to previous error diff --git a/src/test/ui/issues/issue-24036.stderr b/src/test/ui/issues/issue-24036.stderr index a42e35c4cad..0e73a51faed 100644 --- a/src/test/ui/issues/issue-24036.stderr +++ b/src/test/ui/issues/issue-24036.stderr @@ -19,8 +19,8 @@ LL | 1 => |c| c + 1, | help: consider giving this closure parameter an explicit type | -LL | 1 => |c: _| c + 1, - | +++ +LL | 1 => |c: /* Type */| c + 1, + | ++++++++++++ error: aborting due to 2 previous errors diff --git a/src/test/ui/issues/issue-24424.stderr b/src/test/ui/issues/issue-24424.stderr index 8f3b2ac7319..50d7f988e19 100644 --- a/src/test/ui/issues/issue-24424.stderr +++ b/src/test/ui/issues/issue-24424.stderr @@ -4,7 +4,11 @@ error[E0283]: type annotations needed: cannot satisfy `T0: Trait0<'l0>` LL | impl <'l0, 'l1, T0> Trait1<'l0, T0> for bool where T0 : Trait0<'l0>, T0 : Trait0<'l1> {} | ^^^^^^^^^^^ | - = note: cannot satisfy `T0: Trait0<'l0>` +note: multiple `impl`s or `where` clauses satisfying `T0: Trait0<'l0>` found + --> $DIR/issue-24424.rs:4:57 + | +LL | impl <'l0, 'l1, T0> Trait1<'l0, T0> for bool where T0 : Trait0<'l0>, T0 : Trait0<'l1> {} + | ^^^^^^^^^^^ ^^^^^^^^^^^ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-27033.stderr b/src/test/ui/issues/issue-27033.stderr index 9a38d49cd0c..7a0ca888d74 100644 --- a/src/test/ui/issues/issue-27033.stderr +++ b/src/test/ui/issues/issue-27033.stderr @@ -3,11 +3,9 @@ error[E0530]: match bindings cannot shadow unit variants | LL | None @ _ => {} | ^^^^ cannot be named the same as a unit variant + --> $SRC_DIR/std/src/prelude/mod.rs:LL:COL | - ::: $SRC_DIR/std/src/prelude/mod.rs:LL:COL - | -LL | pub use super::v1::*; - | ------------ the unit variant `None` is defined here + = note: the unit variant `None` is defined here error[E0530]: match bindings cannot shadow constants --> $DIR/issue-27033.rs:7:9 diff --git a/src/test/ui/issues/issue-30123.stderr b/src/test/ui/issues/issue-30123.stderr index e9d934332f1..7808cbf8aa1 100644 --- a/src/test/ui/issues/issue-30123.stderr +++ b/src/test/ui/issues/issue-30123.stderr @@ -1,8 +1,8 @@ -error[E0599]: no function or associated item named `new_undirected` found for struct `issue_30123_aux::Graph<i32, i32>` in the current scope +error[E0599]: no function or associated item named `new_undirected` found for struct `Graph<i32, i32>` in the current scope --> $DIR/issue-30123.rs:7:33 | LL | let ug = Graph::<i32, i32>::new_undirected(); - | ^^^^^^^^^^^^^^ function or associated item not found in `issue_30123_aux::Graph<i32, i32>` + | ^^^^^^^^^^^^^^ function or associated item not found in `Graph<i32, i32>` | = note: the function or associated item was found for - `issue_30123_aux::Graph<N, E, Undirected>` diff --git a/src/test/ui/issues/issue-3044.stderr b/src/test/ui/issues/issue-3044.stderr index a4c455ca192..2b142f688ec 100644 --- a/src/test/ui/issues/issue-3044.stderr +++ b/src/test/ui/issues/issue-3044.stderr @@ -9,9 +9,6 @@ LL | | }); | note: associated function defined here --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | fn fold<B, F>(mut self, init: B, mut f: F) -> B - | ^^^^ help: provide the argument | LL ~ needlesArr.iter().fold(|x, y| { diff --git a/src/test/ui/issues/issue-31173.rs b/src/test/ui/issues/issue-31173.rs index 04efa27189b..f678df5b42b 100644 --- a/src/test/ui/issues/issue-31173.rs +++ b/src/test/ui/issues/issue-31173.rs @@ -4,12 +4,11 @@ pub fn get_tok(it: &mut IntoIter<u8>) { let mut found_e = false; let temp: Vec<u8> = it - //~^ ERROR to be an iterator that yields `&_`, but it yields `u8` .take_while(|&x| { found_e = true; false }) - .cloned() + .cloned() //~ ERROR to be an iterator that yields `&_`, but it yields `u8` .collect(); //~ ERROR the method } diff --git a/src/test/ui/issues/issue-31173.stderr b/src/test/ui/issues/issue-31173.stderr index 58d9b564427..f3be99f9bcb 100644 --- a/src/test/ui/issues/issue-31173.stderr +++ b/src/test/ui/issues/issue-31173.stderr @@ -1,46 +1,43 @@ -error[E0271]: expected `TakeWhile<&mut std::vec::IntoIter<u8>, [closure@$DIR/issue-31173.rs:8:21: 8:25]>` to be an iterator that yields `&_`, but it yields `u8` - --> $DIR/issue-31173.rs:6:25 +error[E0271]: expected `TakeWhile<&mut IntoIter<u8>, [closure@issue-31173.rs:7:21]>` to be an iterator that yields `&_`, but it yields `u8` + --> $DIR/issue-31173.rs:11:10 | -LL | let temp: Vec<u8> = it - | _________________________^ -LL | | -LL | | .take_while(|&x| { -LL | | found_e = true; -LL | | false -LL | | }) - | |__________^ expected reference, found `u8` -LL | .cloned() - | ------ required by a bound introduced by this call +LL | .cloned() + | ^^^^^^ expected reference, found `u8` | = note: expected reference `&_` found type `u8` +note: the method call chain might not have had the expected associated types + --> $DIR/issue-31173.rs:3:20 + | +LL | pub fn get_tok(it: &mut IntoIter<u8>) { + | ^^^^^^^^^^^^^^^^^ `Iterator::Item` is `u8` here +... +LL | .take_while(|&x| { + | __________- +LL | | found_e = true; +LL | | false +LL | | }) + | |__________- `Iterator::Item` remains `u8` here note: required by a bound in `cloned` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | Self: Sized + Iterator<Item = &'a T>, - | ^^^^^^^^^^^^ required by this bound in `Iterator::cloned` -error[E0599]: the method `collect` exists for struct `Cloned<TakeWhile<&mut std::vec::IntoIter<u8>, [closure@$DIR/issue-31173.rs:8:21: 8:25]>>`, but its trait bounds were not satisfied - --> $DIR/issue-31173.rs:13:10 +error[E0599]: the method `collect` exists for struct `Cloned<TakeWhile<&mut IntoIter<u8>, [closure@issue-31173.rs:7:21]>>`, but its trait bounds were not satisfied + --> $DIR/issue-31173.rs:12:10 | LL | .collect(); - | ^^^^^^^ method cannot be called on `Cloned<TakeWhile<&mut std::vec::IntoIter<u8>, [closure@$DIR/issue-31173.rs:8:21: 8:25]>>` due to unsatisfied trait bounds - | - ::: $SRC_DIR/core/src/iter/adapters/take_while.rs:LL:COL - | -LL | pub struct TakeWhile<I, P> { - | -------------------------- doesn't satisfy `<_ as Iterator>::Item = &_` + | ^^^^^^^ method cannot be called due to unsatisfied trait bounds + --> $SRC_DIR/core/src/iter/adapters/take_while.rs:LL:COL | - ::: $SRC_DIR/core/src/iter/adapters/cloned.rs:LL:COL + = note: doesn't satisfy `<_ as Iterator>::Item = &_` + --> $SRC_DIR/core/src/iter/adapters/cloned.rs:LL:COL | -LL | pub struct Cloned<I> { - | -------------------- doesn't satisfy `_: Iterator` + = note: doesn't satisfy `_: Iterator` | = note: the following trait bounds were not satisfied: - `<TakeWhile<&mut std::vec::IntoIter<u8>, [closure@$DIR/issue-31173.rs:8:21: 8:25]> as Iterator>::Item = &_` - which is required by `Cloned<TakeWhile<&mut std::vec::IntoIter<u8>, [closure@$DIR/issue-31173.rs:8:21: 8:25]>>: Iterator` - `Cloned<TakeWhile<&mut std::vec::IntoIter<u8>, [closure@$DIR/issue-31173.rs:8:21: 8:25]>>: Iterator` - which is required by `&mut Cloned<TakeWhile<&mut std::vec::IntoIter<u8>, [closure@$DIR/issue-31173.rs:8:21: 8:25]>>: Iterator` + `<TakeWhile<&mut std::vec::IntoIter<u8>, [closure@$DIR/issue-31173.rs:7:21: 7:25]> as Iterator>::Item = &_` + which is required by `Cloned<TakeWhile<&mut std::vec::IntoIter<u8>, [closure@$DIR/issue-31173.rs:7:21: 7:25]>>: Iterator` + `Cloned<TakeWhile<&mut std::vec::IntoIter<u8>, [closure@$DIR/issue-31173.rs:7:21: 7:25]>>: Iterator` + which is required by `&mut Cloned<TakeWhile<&mut std::vec::IntoIter<u8>, [closure@$DIR/issue-31173.rs:7:21: 7:25]>>: Iterator` error: aborting due to 2 previous errors diff --git a/src/test/ui/issues/issue-32655.stderr b/src/test/ui/issues/issue-32655.stderr index 5a758c7002b..b8362499b2d 100644 --- a/src/test/ui/issues/issue-32655.stderr +++ b/src/test/ui/issues/issue-32655.stderr @@ -6,11 +6,9 @@ LL | #[derive_Clone] ... LL | foo!(); | ------ in this macro invocation + --> $SRC_DIR/core/src/macros/mod.rs:LL:COL | - ::: $SRC_DIR/core/src/macros/mod.rs:LL:COL - | -LL | pub macro derive_const($item:item) { - | ---------------------- similarly named attribute macro `derive_const` defined here + = note: similarly named attribute macro `derive_const` defined here | = note: this error originates in the macro `foo` (in Nightly builds, run with -Z macro-backtrace for more info) @@ -19,11 +17,9 @@ error: cannot find attribute `derive_Clone` in this scope | LL | #[derive_Clone] | ^^^^^^^^^^^^ help: an attribute macro with a similar name exists: `derive_const` + --> $SRC_DIR/core/src/macros/mod.rs:LL:COL | - ::: $SRC_DIR/core/src/macros/mod.rs:LL:COL - | -LL | pub macro derive_const($item:item) { - | ---------------------- similarly named attribute macro `derive_const` defined here + = note: similarly named attribute macro `derive_const` defined here error: aborting due to 2 previous errors diff --git a/src/test/ui/issues/issue-33941.rs b/src/test/ui/issues/issue-33941.rs index 8430e85df87..e3b6dcf55a7 100644 --- a/src/test/ui/issues/issue-33941.rs +++ b/src/test/ui/issues/issue-33941.rs @@ -3,7 +3,7 @@ use std::collections::HashMap; fn main() { - for _ in HashMap::new().iter().cloned() {} //~ ERROR expected `std::collections::hash_map::Iter<'_, _, _>` to be an iterator that yields `&_`, but it yields `(&_, &_)` - //~^ ERROR expected `std::collections::hash_map::Iter<'_, _, _>` to be an iterator that yields `&_`, but it yields `(&_, &_)` - //~| ERROR expected `std::collections::hash_map::Iter<'_, _, _>` to be an iterator that yields `&_`, but it yields `(&_, &_)` + for _ in HashMap::new().iter().cloned() {} //~ ERROR expected `Iter<'_, _, _>` to be an iterator that yields `&_`, but it yields `(&_, &_)` + //~^ ERROR expected `Iter<'_, _, _>` to be an iterator that yields `&_`, but it yields `(&_, &_)` + //~| ERROR expected `Iter<'_, _, _>` to be an iterator that yields `&_`, but it yields `(&_, &_)` } diff --git a/src/test/ui/issues/issue-33941.stderr b/src/test/ui/issues/issue-33941.stderr index c28986a2985..668eaabca4c 100644 --- a/src/test/ui/issues/issue-33941.stderr +++ b/src/test/ui/issues/issue-33941.stderr @@ -1,20 +1,22 @@ -error[E0271]: expected `std::collections::hash_map::Iter<'_, _, _>` to be an iterator that yields `&_`, but it yields `(&_, &_)` - --> $DIR/issue-33941.rs:6:14 +error[E0271]: expected `Iter<'_, _, _>` to be an iterator that yields `&_`, but it yields `(&_, &_)` + --> $DIR/issue-33941.rs:6:36 | LL | for _ in HashMap::new().iter().cloned() {} - | ^^^^^^^^^^^^^^^^^^^^^ ------ required by a bound introduced by this call - | | - | expected reference, found tuple + | ^^^^^^ expected reference, found tuple | = note: expected reference `&_` found tuple `(&_, &_)` +note: the method call chain might not have had the expected associated types + --> $DIR/issue-33941.rs:6:29 + | +LL | for _ in HashMap::new().iter().cloned() {} + | -------------- ^^^^^^ `Iterator::Item` is `(&_, &_)` here + | | + | this expression has type `HashMap<_, _>` note: required by a bound in `cloned` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | Self: Sized + Iterator<Item = &'a T>, - | ^^^^^^^^^^^^ required by this bound in `Iterator::cloned` -error[E0271]: expected `std::collections::hash_map::Iter<'_, _, _>` to be an iterator that yields `&_`, but it yields `(&_, &_)` +error[E0271]: expected `Iter<'_, _, _>` to be an iterator that yields `&_`, but it yields `(&_, &_)` --> $DIR/issue-33941.rs:6:14 | LL | for _ in HashMap::new().iter().cloned() {} @@ -25,7 +27,7 @@ LL | for _ in HashMap::new().iter().cloned() {} = note: required for `Cloned<std::collections::hash_map::Iter<'_, _, _>>` to implement `Iterator` = note: required for `Cloned<std::collections::hash_map::Iter<'_, _, _>>` to implement `IntoIterator` -error[E0271]: expected `std::collections::hash_map::Iter<'_, _, _>` to be an iterator that yields `&_`, but it yields `(&_, &_)` +error[E0271]: expected `Iter<'_, _, _>` to be an iterator that yields `&_`, but it yields `(&_, &_)` --> $DIR/issue-33941.rs:6:14 | LL | for _ in HashMap::new().iter().cloned() {} diff --git a/src/test/ui/issues/issue-34334.stderr b/src/test/ui/issues/issue-34334.stderr index 3188cd80cca..9d2c315e4db 100644 --- a/src/test/ui/issues/issue-34334.stderr +++ b/src/test/ui/issues/issue-34334.stderr @@ -13,20 +13,25 @@ LL | let sr: Vec<(u32, _, _)> = vec![]; | + error[E0277]: a value of type `Vec<(u32, _, _)>` cannot be built from an iterator over elements of type `()` - --> $DIR/issue-34334.rs:5:33 + --> $DIR/issue-34334.rs:5:87 | LL | let sr2: Vec<(u32, _, _)> = sr.iter().map(|(faction, th_sender, th_receiver)| {}).collect(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ------- required by a bound introduced by this call - | | - | value of type `Vec<(u32, _, _)>` cannot be built from `std::iter::Iterator<Item=()>` + | ^^^^^^^ value of type `Vec<(u32, _, _)>` cannot be built from `std::iter::Iterator<Item=()>` | = help: the trait `FromIterator<()>` is not implemented for `Vec<(u32, _, _)>` = help: the trait `FromIterator<T>` is implemented for `Vec<T>` +note: the method call chain might not have had the expected associated types + --> $DIR/issue-34334.rs:5:43 + | +LL | let sr: Vec<(u32, _, _) = vec![]; + | ------ this expression has type `Vec<(_, _, _)>` +... +LL | let sr2: Vec<(u32, _, _)> = sr.iter().map(|(faction, th_sender, th_receiver)| {}).collect(); + | ------ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `Iterator::Item` changed to `()` here + | | + | `Iterator::Item` is `&(_, _, _)` here note: required by a bound in `collect` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | fn collect<B: FromIterator<Self::Item>>(self) -> B - | ^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::collect` error: aborting due to 2 previous errors diff --git a/src/test/ui/issues/issue-34721.stderr b/src/test/ui/issues/issue-34721.stderr index 045819061c1..f2bf22227db 100644 --- a/src/test/ui/issues/issue-34721.stderr +++ b/src/test/ui/issues/issue-34721.stderr @@ -13,7 +13,7 @@ LL | }; LL | x.zero() | ^ value used here after move | -note: this function takes ownership of the receiver `self`, which moves `x` +note: `Foo::zero` takes ownership of the receiver `self`, which moves `x` --> $DIR/issue-34721.rs:4:13 | LL | fn zero(self) -> Self; diff --git a/src/test/ui/issues/issue-38857.stderr b/src/test/ui/issues/issue-38857.stderr index 23090c1ed78..4d505784b86 100644 --- a/src/test/ui/issues/issue-38857.stderr +++ b/src/test/ui/issues/issue-38857.stderr @@ -12,9 +12,6 @@ LL | let a = std::sys::imp::process::process_common::StdioPipes { ..panic!() | note: the module `sys` is defined here --> $SRC_DIR/std/src/lib.rs:LL:COL - | -LL | mod sys; - | ^^^^^^^ error: aborting due to 2 previous errors diff --git a/src/test/ui/issues/issue-40402-ref-hints/issue-40402-1.stderr b/src/test/ui/issues/issue-40402-ref-hints/issue-40402-1.stderr index 0a5a6b80e9b..e15eed65612 100644 --- a/src/test/ui/issues/issue-40402-ref-hints/issue-40402-1.stderr +++ b/src/test/ui/issues/issue-40402-ref-hints/issue-40402-1.stderr @@ -2,10 +2,12 @@ error[E0507]: cannot move out of index of `Vec<String>` --> $DIR/issue-40402-1.rs:9:13 | LL | let e = f.v[0]; - | ^^^^^^ - | | - | move occurs because value has type `String`, which does not implement the `Copy` trait - | help: consider borrowing here: `&f.v[0]` + | ^^^^^^ move occurs because value has type `String`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | let e = &f.v[0]; + | + error: aborting due to previous error diff --git a/src/test/ui/issues/issue-40402-ref-hints/issue-40402-2.stderr b/src/test/ui/issues/issue-40402-ref-hints/issue-40402-2.stderr index b6049f967ff..1bc554efb5c 100644 --- a/src/test/ui/issues/issue-40402-ref-hints/issue-40402-2.stderr +++ b/src/test/ui/issues/issue-40402-ref-hints/issue-40402-2.stderr @@ -2,12 +2,16 @@ error[E0507]: cannot move out of index of `Vec<(String, String)>` --> $DIR/issue-40402-2.rs:5:18 | LL | let (a, b) = x[0]; - | - - ^^^^ help: consider borrowing here: `&x[0]` + | - - ^^^^ | | | | | ...and here | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider borrowing here + | +LL | let (a, b) = &x[0]; + | + error: aborting due to previous error diff --git a/src/test/ui/issues/issue-41880.stderr b/src/test/ui/issues/issue-41880.stderr index fd694df3045..00c375f8d2a 100644 --- a/src/test/ui/issues/issue-41880.stderr +++ b/src/test/ui/issues/issue-41880.stderr @@ -5,7 +5,7 @@ LL | pub struct Iterate<T, F> { | ------------------------ method `iter` not found for this struct ... LL | println!("{:?}", a.iter().take(10).collect::<Vec<usize>>()); - | ^^^^ method not found in `Iterate<{integer}, [closure@$DIR/issue-41880.rs:26:24: 26:27]>` + | ^^^^ method not found in `Iterate<{integer}, [closure@issue-41880.rs:26:24]>` error: aborting due to previous error diff --git a/src/test/ui/issues/issue-42312.stderr b/src/test/ui/issues/issue-42312.stderr index 6fe15162243..3ca6a2957e1 100644 --- a/src/test/ui/issues/issue-42312.stderr +++ b/src/test/ui/issues/issue-42312.stderr @@ -23,6 +23,10 @@ LL | pub fn f(_: dyn ToString) {} | = help: the trait `Sized` is not implemented for `(dyn ToString + 'static)` = help: unsized fn params are gated as an unstable feature +help: you can use `impl Trait` as the argument type + | +LL | pub fn f(_: impl ToString) {} + | ~~~~ help: function arguments must have a statically known size, borrowed types always have a known size | LL | pub fn f(_: &dyn ToString) {} diff --git a/src/test/ui/issues/issue-48364.stderr b/src/test/ui/issues/issue-48364.stderr index 7fd36676df8..da3e62e35dc 100644 --- a/src/test/ui/issues/issue-48364.stderr +++ b/src/test/ui/issues/issue-48364.stderr @@ -10,9 +10,6 @@ LL | b"".starts_with(stringify!(foo)) found reference `&'static str` note: associated function defined here --> $SRC_DIR/core/src/slice/mod.rs:LL:COL - | -LL | pub fn starts_with(&self, needle: &[T]) -> bool - | ^^^^^^^^^^^ = note: this error originates in the macro `stringify` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to previous error diff --git a/src/test/ui/issues/issue-51154.stderr b/src/test/ui/issues/issue-51154.stderr index 44ec626dea5..d8a833a86f5 100644 --- a/src/test/ui/issues/issue-51154.stderr +++ b/src/test/ui/issues/issue-51154.stderr @@ -13,9 +13,6 @@ LL | let _: Box<F> = Box::new(|| ()); = help: every closure has a distinct type and so could not always match the caller-chosen type of parameter `F` note: associated function defined here --> $SRC_DIR/alloc/src/boxed.rs:LL:COL - | -LL | pub fn new(x: T) -> Self { - | ^^^ error: aborting due to previous error diff --git a/src/test/ui/issues/issue-5883.stderr b/src/test/ui/issues/issue-5883.stderr index 8a20a60853a..ffff403e0d4 100644 --- a/src/test/ui/issues/issue-5883.stderr +++ b/src/test/ui/issues/issue-5883.stderr @@ -6,6 +6,10 @@ LL | r: dyn A + 'static | = help: the trait `Sized` is not implemented for `(dyn A + 'static)` = help: unsized fn params are gated as an unstable feature +help: you can use `impl Trait` as the argument type + | +LL | r: impl A + 'static + | ~~~~ help: function arguments must have a statically known size, borrowed types always have a known size | LL | r: &dyn A + 'static diff --git a/src/test/ui/issues/issue-61108.stderr b/src/test/ui/issues/issue-61108.stderr index e5b671d7b7a..3aaf5fb3f3e 100644 --- a/src/test/ui/issues/issue-61108.stderr +++ b/src/test/ui/issues/issue-61108.stderr @@ -9,11 +9,8 @@ LL | for l in bad_letters { LL | bad_letters.push('s'); | ^^^^^^^^^^^^^^^^^^^^^ value borrowed here after move | -note: this function takes ownership of the receiver `self`, which moves `bad_letters` +note: `into_iter` takes ownership of the receiver `self`, which moves `bad_letters` --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | fn into_iter(self) -> Self::IntoIter; - | ^^^^ help: consider iterating over a slice of the `Vec<char>`'s content to avoid moving into the `for` loop | LL | for l in &bad_letters { diff --git a/src/test/ui/issues/issue-64559.stderr b/src/test/ui/issues/issue-64559.stderr index ef178bbd155..386ac794d7d 100644 --- a/src/test/ui/issues/issue-64559.stderr +++ b/src/test/ui/issues/issue-64559.stderr @@ -10,11 +10,8 @@ LL | let _closure = || orig; | | | value used here after move | -note: this function takes ownership of the receiver `self`, which moves `orig` +note: `into_iter` takes ownership of the receiver `self`, which moves `orig` --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | fn into_iter(self) -> Self::IntoIter; - | ^^^^ help: consider iterating over a slice of the `Vec<bool>`'s content to avoid moving into the `for` loop | LL | for _val in &orig {} diff --git a/src/test/ui/issues/issue-66923-show-error-for-correct-call.stderr b/src/test/ui/issues/issue-66923-show-error-for-correct-call.stderr index ce38c3320bb..cec482a53ba 100644 --- a/src/test/ui/issues/issue-66923-show-error-for-correct-call.stderr +++ b/src/test/ui/issues/issue-66923-show-error-for-correct-call.stderr @@ -1,34 +1,39 @@ error[E0277]: a value of type `Vec<f64>` cannot be built from an iterator over elements of type `&f64` - --> $DIR/issue-66923-show-error-for-correct-call.rs:8:24 + --> $DIR/issue-66923-show-error-for-correct-call.rs:8:39 | LL | let x2: Vec<f64> = x1.into_iter().collect(); - | ^^^^^^^^^^^^^^ ------- required by a bound introduced by this call - | | - | value of type `Vec<f64>` cannot be built from `std::iter::Iterator<Item=&f64>` + | ^^^^^^^ value of type `Vec<f64>` cannot be built from `std::iter::Iterator<Item=&f64>` | = help: the trait `FromIterator<&f64>` is not implemented for `Vec<f64>` = help: the trait `FromIterator<T>` is implemented for `Vec<T>` +note: the method call chain might not have had the expected associated types + --> $DIR/issue-66923-show-error-for-correct-call.rs:8:27 + | +LL | let x1: &[f64] = &v; + | -- this expression has type `&Vec<f64>` +LL | let x2: Vec<f64> = x1.into_iter().collect(); + | ^^^^^^^^^^^ `Iterator::Item` is `&f64` here note: required by a bound in `collect` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | fn collect<B: FromIterator<Self::Item>>(self) -> B - | ^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::collect` error[E0277]: a value of type `Vec<f64>` cannot be built from an iterator over elements of type `&f64` - --> $DIR/issue-66923-show-error-for-correct-call.rs:12:14 + --> $DIR/issue-66923-show-error-for-correct-call.rs:12:29 | LL | let x3 = x1.into_iter().collect::<Vec<f64>>(); - | ^^^^^^^^^^^^^^ ------- required by a bound introduced by this call - | | - | value of type `Vec<f64>` cannot be built from `std::iter::Iterator<Item=&f64>` + | ^^^^^^^ value of type `Vec<f64>` cannot be built from `std::iter::Iterator<Item=&f64>` | = help: the trait `FromIterator<&f64>` is not implemented for `Vec<f64>` = help: the trait `FromIterator<T>` is implemented for `Vec<T>` +note: the method call chain might not have had the expected associated types + --> $DIR/issue-66923-show-error-for-correct-call.rs:12:17 + | +LL | let x1: &[f64] = &v; + | -- this expression has type `&Vec<f64>` +... +LL | let x3 = x1.into_iter().collect::<Vec<f64>>(); + | ^^^^^^^^^^^ `Iterator::Item` is `&f64` here note: required by a bound in `collect` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | fn collect<B: FromIterator<Self::Item>>(self) -> B - | ^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::collect` error: aborting due to 2 previous errors diff --git a/src/test/ui/issues/issue-7607-1.stderr b/src/test/ui/issues/issue-7607-1.stderr index f1ab0ad26d7..c983026995b 100644 --- a/src/test/ui/issues/issue-7607-1.stderr +++ b/src/test/ui/issues/issue-7607-1.stderr @@ -3,11 +3,9 @@ error[E0412]: cannot find type `Fo` in this scope | LL | impl Fo { | ^^ help: a trait with a similar name exists: `Fn` + --> $SRC_DIR/core/src/ops/function.rs:LL:COL | - ::: $SRC_DIR/core/src/ops/function.rs:LL:COL - | -LL | pub trait Fn<Args: Tuple>: FnMut<Args> { - | -------------------------------------- similarly named trait `Fn` defined here + = note: similarly named trait `Fn` defined here error: aborting due to previous error diff --git a/src/test/ui/issues/issue-83924.stderr b/src/test/ui/issues/issue-83924.stderr index 767571cddbe..572414df2bf 100644 --- a/src/test/ui/issues/issue-83924.stderr +++ b/src/test/ui/issues/issue-83924.stderr @@ -10,11 +10,8 @@ LL | for n in v { LL | for n in v { | ^ value used here after move | -note: this function takes ownership of the receiver `self`, which moves `v` +note: `into_iter` takes ownership of the receiver `self`, which moves `v` --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | fn into_iter(self) -> Self::IntoIter; - | ^^^^ help: consider creating a fresh reborrow of `v` here | LL | for n in &mut *v { diff --git a/src/test/ui/iterators/collect-into-array.rs b/src/test/ui/iterators/collect-into-array.rs index 4c424999b75..99d0d9bd735 100644 --- a/src/test/ui/iterators/collect-into-array.rs +++ b/src/test/ui/iterators/collect-into-array.rs @@ -3,5 +3,4 @@ fn main() { //~^ ERROR an array of type `[u32; 10]` cannot be built directly from an iterator //~| NOTE try collecting into a `Vec<{integer}>`, then using `.try_into()` //~| NOTE required by a bound in `collect` - //~| NOTE required by a bound introduced by this call } diff --git a/src/test/ui/iterators/collect-into-array.stderr b/src/test/ui/iterators/collect-into-array.stderr index 544b1da178a..e38745cc10e 100644 --- a/src/test/ui/iterators/collect-into-array.stderr +++ b/src/test/ui/iterators/collect-into-array.stderr @@ -1,17 +1,12 @@ error[E0277]: an array of type `[u32; 10]` cannot be built directly from an iterator - --> $DIR/collect-into-array.rs:2:31 + --> $DIR/collect-into-array.rs:2:39 | LL | let whatever: [u32; 10] = (0..10).collect(); - | ^^^^^^^ ------- required by a bound introduced by this call - | | - | try collecting into a `Vec<{integer}>`, then using `.try_into()` + | ^^^^^^^ try collecting into a `Vec<{integer}>`, then using `.try_into()` | = help: the trait `FromIterator<{integer}>` is not implemented for `[u32; 10]` note: required by a bound in `collect` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | fn collect<B: FromIterator<Self::Item>>(self) -> B - | ^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::collect` error: aborting due to previous error diff --git a/src/test/ui/iterators/collect-into-slice.rs b/src/test/ui/iterators/collect-into-slice.rs index 09832c260d0..5a8aacb1a6d 100644 --- a/src/test/ui/iterators/collect-into-slice.rs +++ b/src/test/ui/iterators/collect-into-slice.rs @@ -13,6 +13,5 @@ fn main() { //~| NOTE all local variables must have a statically known size //~| NOTE doesn't have a size known at compile-time //~| NOTE doesn't have a size known at compile-time - //~| NOTE required by a bound introduced by this call process_slice(&some_generated_vec); } diff --git a/src/test/ui/iterators/collect-into-slice.stderr b/src/test/ui/iterators/collect-into-slice.stderr index 65ef124a463..29fff8c51c6 100644 --- a/src/test/ui/iterators/collect-into-slice.stderr +++ b/src/test/ui/iterators/collect-into-slice.stderr @@ -17,24 +17,16 @@ LL | let some_generated_vec = (0..10).collect(); = help: the trait `Sized` is not implemented for `[i32]` note: required by a bound in `collect` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | fn collect<B: FromIterator<Self::Item>>(self) -> B - | ^ required by this bound in `Iterator::collect` error[E0277]: a slice of type `[i32]` cannot be built since `[i32]` has no definite size - --> $DIR/collect-into-slice.rs:6:30 + --> $DIR/collect-into-slice.rs:6:38 | LL | let some_generated_vec = (0..10).collect(); - | ^^^^^^^ ------- required by a bound introduced by this call - | | - | try explicitly collecting into a `Vec<{integer}>` + | ^^^^^^^ try explicitly collecting into a `Vec<{integer}>` | = help: the trait `FromIterator<{integer}>` is not implemented for `[i32]` note: required by a bound in `collect` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | fn collect<B: FromIterator<Self::Item>>(self) -> B - | ^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::collect` error: aborting due to 3 previous errors diff --git a/src/test/ui/iterators/invalid-iterator-chain.rs b/src/test/ui/iterators/invalid-iterator-chain.rs new file mode 100644 index 00000000000..ebdf33303c9 --- /dev/null +++ b/src/test/ui/iterators/invalid-iterator-chain.rs @@ -0,0 +1,53 @@ +use std::collections::hash_set::Iter; +use std::collections::HashSet; + +fn iter_to_vec<'b, X>(i: Iter<'b, X>) -> Vec<X> { + let i = i.map(|x| x.clone()); + i.collect() //~ ERROR E0277 +} + +fn main() { + let scores = vec![(0, 0)] + .iter() + .map(|(a, b)| { + a + b; + }); + println!("{}", scores.sum::<i32>()); //~ ERROR E0277 + println!( + "{}", + vec![0, 1] + .iter() + .map(|x| x * 2) + .map(|x| x as f64) + .map(|x| x as i64) + .filter(|x| *x > 0) + .map(|x| { x + 1 }) + .map(|x| { x; }) + .sum::<i32>(), //~ ERROR E0277 + ); + println!( + "{}", + vec![0, 1] + .iter() + .map(|x| x * 2) + .map(|x| x as f64) + .filter(|x| *x > 0.0) + .map(|x| { x + 1.0 }) + .sum::<i32>(), //~ ERROR E0277 + ); + println!("{}", vec![0, 1].iter().map(|x| { x; }).sum::<i32>()); //~ ERROR E0277 + println!("{}", vec![(), ()].iter().sum::<i32>()); //~ ERROR E0277 + let a = vec![0]; + let b = a.into_iter(); + let c = b.map(|x| x + 1); + let d = c.filter(|x| *x > 10 ); + let e = d.map(|x| { + x + 1; + }); + let f = e.filter(|_| false); + let g: Vec<i32> = f.collect(); //~ ERROR E0277 + + let mut s = HashSet::new(); + s.insert(1u8); + println!("{:?}", iter_to_vec(s.iter())); +} diff --git a/src/test/ui/iterators/invalid-iterator-chain.stderr b/src/test/ui/iterators/invalid-iterator-chain.stderr new file mode 100644 index 00000000000..d76a4bfb7b3 --- /dev/null +++ b/src/test/ui/iterators/invalid-iterator-chain.stderr @@ -0,0 +1,176 @@ +error[E0277]: a value of type `Vec<X>` cannot be built from an iterator over elements of type `&X` + --> $DIR/invalid-iterator-chain.rs:6:7 + | +LL | i.collect() + | ^^^^^^^ value of type `Vec<X>` cannot be built from `std::iter::Iterator<Item=&X>` + | + = help: the trait `FromIterator<&X>` is not implemented for `Vec<X>` + = help: the trait `FromIterator<T>` is implemented for `Vec<T>` +note: the method call chain might not have had the expected associated types + --> $DIR/invalid-iterator-chain.rs:4:26 + | +LL | fn iter_to_vec<'b, X>(i: Iter<'b, X>) -> Vec<X> { + | ^^^^^^^^^^^ `Iterator::Item` is `&X` here +LL | let i = i.map(|x| x.clone()); + | ------------------ `Iterator::Item` remains `&X` here +note: required by a bound in `collect` + --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL + +error[E0277]: a value of type `i32` cannot be made by summing an iterator over elements of type `()` + --> $DIR/invalid-iterator-chain.rs:15:27 + | +LL | println!("{}", scores.sum::<i32>()); + | ^^^ value of type `i32` cannot be made by summing a `std::iter::Iterator<Item=()>` + | + = help: the trait `Sum<()>` is not implemented for `i32` + = help: the following other types implement trait `Sum<A>`: + <i32 as Sum<&'a i32>> + <i32 as Sum> +note: the method call chain might not have had the expected associated types + --> $DIR/invalid-iterator-chain.rs:12:10 + | +LL | let scores = vec![(0, 0)] + | ------------ this expression has type `Vec<({integer}, {integer})>` +LL | .iter() + | ------ `Iterator::Item` is `&({integer}, {integer})` here +LL | .map(|(a, b)| { + | __________^ +LL | | a + b; +LL | | }); + | |__________^ `Iterator::Item` changed to `()` here +note: required by a bound in `std::iter::Iterator::sum` + --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL + +error[E0277]: a value of type `i32` cannot be made by summing an iterator over elements of type `()` + --> $DIR/invalid-iterator-chain.rs:26:14 + | +LL | .sum::<i32>(), + | ^^^ value of type `i32` cannot be made by summing a `std::iter::Iterator<Item=()>` + | + = help: the trait `Sum<()>` is not implemented for `i32` + = help: the following other types implement trait `Sum<A>`: + <i32 as Sum<&'a i32>> + <i32 as Sum> +note: the method call chain might not have had the expected associated types + --> $DIR/invalid-iterator-chain.rs:20:14 + | +LL | vec![0, 1] + | ---------- this expression has type `Vec<{integer}>` +LL | .iter() + | ------ `Iterator::Item` is `&{integer}` here +LL | .map(|x| x * 2) + | ^^^^^^^^^^^^^^ `Iterator::Item` changed to `{integer}` here +LL | .map(|x| x as f64) + | ----------------- `Iterator::Item` changed to `f64` here +LL | .map(|x| x as i64) + | ----------------- `Iterator::Item` changed to `i64` here +LL | .filter(|x| *x > 0) + | ------------------ `Iterator::Item` remains `i64` here +LL | .map(|x| { x + 1 }) + | ------------------ `Iterator::Item` remains `i64` here +LL | .map(|x| { x; }) + | ^^^^^^^^^^^^^^^ `Iterator::Item` changed to `()` here +note: required by a bound in `std::iter::Iterator::sum` + --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL + +error[E0277]: a value of type `i32` cannot be made by summing an iterator over elements of type `f64` + --> $DIR/invalid-iterator-chain.rs:36:14 + | +LL | .sum::<i32>(), + | ^^^ value of type `i32` cannot be made by summing a `std::iter::Iterator<Item=f64>` + | + = help: the trait `Sum<f64>` is not implemented for `i32` + = help: the following other types implement trait `Sum<A>`: + <i32 as Sum<&'a i32>> + <i32 as Sum> +note: the method call chain might not have had the expected associated types + --> $DIR/invalid-iterator-chain.rs:32:14 + | +LL | vec![0, 1] + | ---------- this expression has type `Vec<{integer}>` +LL | .iter() + | ------ `Iterator::Item` is `&{integer}` here +LL | .map(|x| x * 2) + | ^^^^^^^^^^^^^^ `Iterator::Item` changed to `{integer}` here +LL | .map(|x| x as f64) + | ^^^^^^^^^^^^^^^^^ `Iterator::Item` changed to `f64` here +LL | .filter(|x| *x > 0.0) + | -------------------- `Iterator::Item` remains `f64` here +LL | .map(|x| { x + 1.0 }) + | -------------------- `Iterator::Item` remains `f64` here +note: required by a bound in `std::iter::Iterator::sum` + --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL + +error[E0277]: a value of type `i32` cannot be made by summing an iterator over elements of type `()` + --> $DIR/invalid-iterator-chain.rs:38:54 + | +LL | println!("{}", vec![0, 1].iter().map(|x| { x; }).sum::<i32>()); + | ^^^ value of type `i32` cannot be made by summing a `std::iter::Iterator<Item=()>` + | + = help: the trait `Sum<()>` is not implemented for `i32` + = help: the following other types implement trait `Sum<A>`: + <i32 as Sum<&'a i32>> + <i32 as Sum> +note: the method call chain might not have had the expected associated types + --> $DIR/invalid-iterator-chain.rs:38:38 + | +LL | println!("{}", vec![0, 1].iter().map(|x| { x; }).sum::<i32>()); + | ---------- ------ ^^^^^^^^^^^^^^^ `Iterator::Item` changed to `()` here + | | | + | | `Iterator::Item` is `&{integer}` here + | this expression has type `Vec<{integer}>` +note: required by a bound in `std::iter::Iterator::sum` + --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL + +error[E0277]: a value of type `i32` cannot be made by summing an iterator over elements of type `&()` + --> $DIR/invalid-iterator-chain.rs:39:40 + | +LL | println!("{}", vec![(), ()].iter().sum::<i32>()); + | ^^^ value of type `i32` cannot be made by summing a `std::iter::Iterator<Item=&()>` + | + = help: the trait `Sum<&()>` is not implemented for `i32` + = help: the following other types implement trait `Sum<A>`: + <i32 as Sum<&'a i32>> + <i32 as Sum> +note: the method call chain might not have had the expected associated types + --> $DIR/invalid-iterator-chain.rs:39:33 + | +LL | println!("{}", vec![(), ()].iter().sum::<i32>()); + | ------------ ^^^^^^ `Iterator::Item` is `&()` here + | | + | this expression has type `Vec<()>` +note: required by a bound in `std::iter::Iterator::sum` + --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL + +error[E0277]: a value of type `Vec<i32>` cannot be built from an iterator over elements of type `()` + --> $DIR/invalid-iterator-chain.rs:48:25 + | +LL | let g: Vec<i32> = f.collect(); + | ^^^^^^^ value of type `Vec<i32>` cannot be built from `std::iter::Iterator<Item=()>` + | + = help: the trait `FromIterator<()>` is not implemented for `Vec<i32>` + = help: the trait `FromIterator<T>` is implemented for `Vec<T>` +note: the method call chain might not have had the expected associated types + --> $DIR/invalid-iterator-chain.rs:44:15 + | +LL | let a = vec![0]; + | ------- this expression has type `Vec<{integer}>` +LL | let b = a.into_iter(); + | ----------- `Iterator::Item` is `{integer}` here +LL | let c = b.map(|x| x + 1); + | -------------- `Iterator::Item` remains `{integer}` here +LL | let d = c.filter(|x| *x > 10 ); + | -------------------- `Iterator::Item` remains `{integer}` here +LL | let e = d.map(|x| { + | _______________^ +LL | | x + 1; +LL | | }); + | |______^ `Iterator::Item` changed to `()` here +LL | let f = e.filter(|_| false); + | ----------------- `Iterator::Item` remains `()` here +note: required by a bound in `collect` + --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL + +error: aborting due to 7 previous errors + +For more information about this error, try `rustc --explain E0277`. diff --git a/src/test/ui/iterators/vec-on-unimplemented.stderr b/src/test/ui/iterators/vec-on-unimplemented.stderr index afcce5c30ca..a7d9c481a1a 100644 --- a/src/test/ui/iterators/vec-on-unimplemented.stderr +++ b/src/test/ui/iterators/vec-on-unimplemented.stderr @@ -3,11 +3,9 @@ error[E0599]: `Vec<bool>` is not an iterator | LL | vec![true, false].map(|v| !v).collect::<Vec<_>>(); | ^^^ `Vec<bool>` is not an iterator; try calling `.into_iter()` or `.iter()` + --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL | - ::: $SRC_DIR/alloc/src/vec/mod.rs:LL:COL - | -LL | pub struct Vec<T, #[unstable(feature = "allocator_api", issue = "32838")] A: Allocator = Global> { - | ------------------------------------------------------------------------------------------------ doesn't satisfy `Vec<bool>: Iterator` + = note: doesn't satisfy `Vec<bool>: Iterator` | = note: the following trait bounds were not satisfied: `Vec<bool>: Iterator` diff --git a/src/test/ui/lazy-type-alias-impl-trait/branches.stderr b/src/test/ui/lazy-type-alias-impl-trait/branches.stderr index 5a46027dd52..0b206f31e7b 100644 --- a/src/test/ui/lazy-type-alias-impl-trait/branches.stderr +++ b/src/test/ui/lazy-type-alias-impl-trait/branches.stderr @@ -1,17 +1,12 @@ error[E0277]: a value of type `Bar` cannot be built from an iterator over elements of type `_` - --> $DIR/branches.rs:19:9 + --> $DIR/branches.rs:19:28 | LL | std::iter::empty().collect() - | ^^^^^^^^^^^^^^^^^^ ------- required by a bound introduced by this call - | | - | value of type `Bar` cannot be built from `std::iter::Iterator<Item=_>` + | ^^^^^^^ value of type `Bar` cannot be built from `std::iter::Iterator<Item=_>` | = help: the trait `FromIterator<_>` is not implemented for `Bar` note: required by a bound in `collect` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | fn collect<B: FromIterator<Self::Item>>(self) -> B - | ^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::collect` error: aborting due to previous error diff --git a/src/test/ui/lazy-type-alias-impl-trait/branches3.stderr b/src/test/ui/lazy-type-alias-impl-trait/branches3.stderr index 420104e526d..fe2631f9474 100644 --- a/src/test/ui/lazy-type-alias-impl-trait/branches3.stderr +++ b/src/test/ui/lazy-type-alias-impl-trait/branches3.stderr @@ -6,8 +6,8 @@ LL | |s| s.len() | help: consider giving this closure parameter an explicit type | -LL | |s: _| s.len() - | +++ +LL | |s: /* Type */| s.len() + | ++++++++++++ error[E0282]: type annotations needed --> $DIR/branches3.rs:15:10 @@ -17,8 +17,8 @@ LL | |s| s.len() | help: consider giving this closure parameter an explicit type | -LL | |s: _| s.len() - | +++ +LL | |s: /* Type */| s.len() + | ++++++++++++ error[E0282]: type annotations needed --> $DIR/branches3.rs:23:10 @@ -28,8 +28,8 @@ LL | |s| s.len() | help: consider giving this closure parameter an explicit type | -LL | |s: _| s.len() - | +++ +LL | |s: /* Type */| s.len() + | ++++++++++++ error[E0282]: type annotations needed --> $DIR/branches3.rs:30:10 @@ -39,8 +39,8 @@ LL | |s| s.len() | help: consider giving this closure parameter an explicit type | -LL | |s: _| s.len() - | +++ +LL | |s: /* Type */| s.len() + | ++++++++++++ error: aborting due to 4 previous errors diff --git a/src/test/ui/lazy-type-alias-impl-trait/recursion4.stderr b/src/test/ui/lazy-type-alias-impl-trait/recursion4.stderr index a4b4968b7d2..d8ac39a4f27 100644 --- a/src/test/ui/lazy-type-alias-impl-trait/recursion4.stderr +++ b/src/test/ui/lazy-type-alias-impl-trait/recursion4.stderr @@ -1,32 +1,22 @@ error[E0277]: a value of type `Foo` cannot be built from an iterator over elements of type `_` - --> $DIR/recursion4.rs:10:9 + --> $DIR/recursion4.rs:10:28 | LL | x = std::iter::empty().collect(); - | ^^^^^^^^^^^^^^^^^^ ------- required by a bound introduced by this call - | | - | value of type `Foo` cannot be built from `std::iter::Iterator<Item=_>` + | ^^^^^^^ value of type `Foo` cannot be built from `std::iter::Iterator<Item=_>` | = help: the trait `FromIterator<_>` is not implemented for `Foo` note: required by a bound in `collect` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | fn collect<B: FromIterator<Self::Item>>(self) -> B - | ^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::collect` error[E0277]: a value of type `impl Debug` cannot be built from an iterator over elements of type `_` - --> $DIR/recursion4.rs:19:9 + --> $DIR/recursion4.rs:19:28 | LL | x = std::iter::empty().collect(); - | ^^^^^^^^^^^^^^^^^^ ------- required by a bound introduced by this call - | | - | value of type `impl Debug` cannot be built from `std::iter::Iterator<Item=_>` + | ^^^^^^^ value of type `impl Debug` cannot be built from `std::iter::Iterator<Item=_>` | = help: the trait `FromIterator<_>` is not implemented for `impl Debug` note: required by a bound in `collect` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | fn collect<B: FromIterator<Self::Item>>(self) -> B - | ^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::collect` error: aborting due to 2 previous errors diff --git a/src/test/ui/lifetimes/conflicting-bounds.rs b/src/test/ui/lifetimes/conflicting-bounds.rs new file mode 100644 index 00000000000..f37f163dbb6 --- /dev/null +++ b/src/test/ui/lifetimes/conflicting-bounds.rs @@ -0,0 +1,11 @@ +//~ type annotations needed: cannot satisfy `Self: Gen<'source>` + +pub trait Gen<'source> { + type Output; + + fn gen<T>(&self) -> T + where + Self: for<'s> Gen<'s, Output = T>; +} + +fn main() {} diff --git a/src/test/ui/lifetimes/conflicting-bounds.stderr b/src/test/ui/lifetimes/conflicting-bounds.stderr new file mode 100644 index 00000000000..42aa393667d --- /dev/null +++ b/src/test/ui/lifetimes/conflicting-bounds.stderr @@ -0,0 +1,14 @@ +error[E0283]: type annotations needed: cannot satisfy `Self: Gen<'source>` + | +note: multiple `impl`s or `where` clauses satisfying `Self: Gen<'source>` found + --> $DIR/conflicting-bounds.rs:3:1 + | +LL | pub trait Gen<'source> { + | ^^^^^^^^^^^^^^^^^^^^^^ +... +LL | Self: for<'s> Gen<'s, Output = T>; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0283`. diff --git a/src/test/ui/lifetimes/issue-34979.stderr b/src/test/ui/lifetimes/issue-34979.stderr index 5832c4d173c..3d4208031cd 100644 --- a/src/test/ui/lifetimes/issue-34979.stderr +++ b/src/test/ui/lifetimes/issue-34979.stderr @@ -4,7 +4,16 @@ error[E0283]: type annotations needed: cannot satisfy `&'a (): Foo` LL | &'a (): Foo, | ^^^ | - = note: cannot satisfy `&'a (): Foo` +note: multiple `impl`s or `where` clauses satisfying `&'a (): Foo` found + --> $DIR/issue-34979.rs:2:1 + | +LL | impl<'a, T> Foo for &'a T {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^ +... +LL | &'a (): Foo, + | ^^^ +LL | &'static (): Foo; + | ^^^ error: aborting due to previous error diff --git a/src/test/ui/limits/issue-55878.stderr b/src/test/ui/limits/issue-55878.stderr index f17f8141b90..f455dcb06f7 100644 --- a/src/test/ui/limits/issue-55878.stderr +++ b/src/test/ui/limits/issue-55878.stderr @@ -1,14 +1,8 @@ error[E0080]: values of the type `[u8; SIZE]` are too big for the current architecture --> $SRC_DIR/core/src/mem/mod.rs:LL:COL | -LL | intrinsics::size_of::<T>() - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - | note: inside `std::mem::size_of::<[u8; SIZE]>` --> $SRC_DIR/core/src/mem/mod.rs:LL:COL - | -LL | intrinsics::size_of::<T>() - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ note: inside `main` --> $DIR/issue-55878.rs:7:26 | diff --git a/src/test/ui/lint/invalid_value.stderr b/src/test/ui/lint/invalid_value.stderr index 5370660d6c1..48fd4169da7 100644 --- a/src/test/ui/lint/invalid_value.stderr +++ b/src/test/ui/lint/invalid_value.stderr @@ -604,9 +604,6 @@ LL | let _val: Result<i32, i32> = mem::uninitialized(); | note: enums with multiple inhabited variants have to be initialized to a variant --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | pub enum Result<T, E> { - | ^^^^^^^^^^^^^^^^^^^^^ error: the type `&i32` does not permit zero-initialization --> $DIR/invalid_value.rs:152:34 diff --git a/src/test/ui/lint/lint-const-item-mutation.stderr b/src/test/ui/lint/lint-const-item-mutation.stderr index 9f4360e6763..747c38b8007 100644 --- a/src/test/ui/lint/lint-const-item-mutation.stderr +++ b/src/test/ui/lint/lint-const-item-mutation.stderr @@ -108,9 +108,6 @@ LL | VEC.push(0); = note: the mutable reference will refer to this temporary, not the original `const` item note: mutable reference created due to call to this method --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL - | -LL | pub fn push(&mut self, value: T) { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: `const` item defined here --> $DIR/lint-const-item-mutation.rs:31:1 | diff --git a/src/test/ui/loops/issue-82916.stderr b/src/test/ui/loops/issue-82916.stderr index 57d76016c45..e6a60d7bc40 100644 --- a/src/test/ui/loops/issue-82916.stderr +++ b/src/test/ui/loops/issue-82916.stderr @@ -9,11 +9,8 @@ LL | for y in x { LL | let z = x; | ^ value used here after move | -note: this function takes ownership of the receiver `self`, which moves `x` +note: `into_iter` takes ownership of the receiver `self`, which moves `x` --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | fn into_iter(self) -> Self::IntoIter; - | ^^^^ help: consider iterating over a slice of the `Vec<S>`'s content to avoid moving into the `for` loop | LL | for y in &x { diff --git a/src/test/ui/lto/auxiliary/thinlto-dylib.rs b/src/test/ui/lto/auxiliary/thinlto-dylib.rs new file mode 100644 index 00000000000..9d17c35dafc --- /dev/null +++ b/src/test/ui/lto/auxiliary/thinlto-dylib.rs @@ -0,0 +1,23 @@ +// Auxiliary crate for test issue-105637: the LTOed dylib which had duplicate symbols from libstd, +// breaking the panic hook feature. +// +// This simulates the `rustc_driver` crate, and the main crate simulates rustc's main binary hooking +// into this driver. + +// compile-flags: -Zdylib-lto -C lto=thin + +use std::panic; + +pub fn main() { + // Install the hook we want to see executed + panic::set_hook(Box::new(|_| { + eprintln!("LTOed auxiliary crate panic hook"); + })); + + // Trigger the panic hook with an ICE + run_compiler(); +} + +fn run_compiler() { + panic!("ICEing"); +} diff --git a/src/test/ui/lto/issue-105637.rs b/src/test/ui/lto/issue-105637.rs new file mode 100644 index 00000000000..0d9f0bec00f --- /dev/null +++ b/src/test/ui/lto/issue-105637.rs @@ -0,0 +1,28 @@ +// Regression test for issue #105637: `-Zdylib-lto` with LTO duplicated symbols from other dylibs, +// in this case from libstd. +// +// That manifested as both `rustc_driver` and rustc's "main" (`compiler/rustc`) having their own +// `std::panicking::HOOK` static, and the hook in rustc's main (the default stdlib's) being executed +// when rustc ICEs, instead of the overriden hook from `rustc_driver` (which also displays the query +// stack and information on how to open a GH issue for the encountered ICE). +// +// In this test, we reproduce this setup by installing a panic hook in both the main and an LTOed +// dylib: the last hook set should be the one being executed, the dylib's. + +// aux-build: thinlto-dylib.rs +// run-fail +// check-run-results + +extern crate thinlto_dylib; + +use std::panic; + +fn main() { + // We don't want to see this panic hook executed + std::panic::set_hook(Box::new(|_| { + eprintln!("main crate panic hook"); + })); + + // Have the LTOed dylib install its own hook and panic, we want to see its hook executed. + thinlto_dylib::main(); +} diff --git a/src/test/ui/lto/issue-105637.run.stderr b/src/test/ui/lto/issue-105637.run.stderr new file mode 100644 index 00000000000..43388e7763e --- /dev/null +++ b/src/test/ui/lto/issue-105637.run.stderr @@ -0,0 +1 @@ +LTOed auxiliary crate panic hook diff --git a/src/test/ui/macros/format-args-temporaries-in-write.stderr b/src/test/ui/macros/format-args-temporaries-in-write.stderr index 03ecc4b4418..287cd7d6704 100644 --- a/src/test/ui/macros/format-args-temporaries-in-write.stderr +++ b/src/test/ui/macros/format-args-temporaries-in-write.stderr @@ -12,11 +12,6 @@ LL | }; | | | `mutex` dropped here while still borrowed | -help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped - --> $SRC_DIR/core/src/macros/mod.rs:LL:COL - | -LL | $dst.write_fmt($crate::format_args!($($arg)*)); - | + error[E0597]: `mutex` does not live long enough --> $DIR/format-args-temporaries-in-write.rs:47:29 @@ -32,11 +27,6 @@ LL | }; | | | `mutex` dropped here while still borrowed | -help: consider adding semicolon after the expression so its temporaries are dropped sooner, before the local variables declared by the block are dropped - --> $SRC_DIR/core/src/macros/mod.rs:LL:COL - | -LL | $dst.write_fmt($crate::format_args_nl!($($arg)*)); - | + error: aborting due to 2 previous errors diff --git a/src/test/ui/macros/macro-name-typo.stderr b/src/test/ui/macros/macro-name-typo.stderr index 3e8cfb3f0e9..d7c8aaae22e 100644 --- a/src/test/ui/macros/macro-name-typo.stderr +++ b/src/test/ui/macros/macro-name-typo.stderr @@ -3,11 +3,9 @@ error: cannot find macro `printlx` in this scope | LL | printlx!("oh noes!"); | ^^^^^^^ help: a macro with a similar name exists: `println` + --> $SRC_DIR/std/src/macros.rs:LL:COL | - ::: $SRC_DIR/std/src/macros.rs:LL:COL - | -LL | macro_rules! println { - | -------------------- similarly named macro `println` defined here + = note: similarly named macro `println` defined here error: aborting due to previous error diff --git a/src/test/ui/macros/macro-path-prelude-fail-3.stderr b/src/test/ui/macros/macro-path-prelude-fail-3.stderr index 70900a6bc81..f1c3512bc9b 100644 --- a/src/test/ui/macros/macro-path-prelude-fail-3.stderr +++ b/src/test/ui/macros/macro-path-prelude-fail-3.stderr @@ -3,11 +3,9 @@ error: cannot find macro `inline` in this scope | LL | inline!(); | ^^^^^^ help: a macro with a similar name exists: `line` + --> $SRC_DIR/core/src/macros/mod.rs:LL:COL | - ::: $SRC_DIR/core/src/macros/mod.rs:LL:COL - | -LL | macro_rules! line { - | ----------------- similarly named macro `line` defined here + = note: similarly named macro `line` defined here | = note: `inline` is in scope, but it is an attribute: `#[inline]` diff --git a/src/test/ui/macros/unknown-builtin.stderr b/src/test/ui/macros/unknown-builtin.stderr index 8f9dba16578..22f54e04e54 100644 --- a/src/test/ui/macros/unknown-builtin.stderr +++ b/src/test/ui/macros/unknown-builtin.stderr @@ -7,9 +7,6 @@ LL | macro_rules! unknown { () => () } error[E0773]: attempted to define built-in macro more than once --> $SRC_DIR/core/src/macros/mod.rs:LL:COL | -LL | macro_rules! line { - | ^^^^^^^^^^^^^^^^^ - | note: previously defined here --> $DIR/unknown-builtin.rs:9:1 | diff --git a/src/test/ui/malformed/malformed-derive-entry.stderr b/src/test/ui/malformed/malformed-derive-entry.stderr index 803883460f0..6ff6fbabb4a 100644 --- a/src/test/ui/malformed/malformed-derive-entry.stderr +++ b/src/test/ui/malformed/malformed-derive-entry.stderr @@ -24,9 +24,6 @@ LL | #[derive(Copy(Bad))] | note: required by a bound in `Copy` --> $SRC_DIR/core/src/marker.rs:LL:COL - | -LL | pub trait Copy: Clone { - | ^^^^^ required by this bound in `Copy` = note: this error originates in the derive macro `Copy` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider annotating `Test1` with `#[derive(Clone)]` | @@ -41,9 +38,6 @@ LL | #[derive(Copy="bad")] | note: required by a bound in `Copy` --> $SRC_DIR/core/src/marker.rs:LL:COL - | -LL | pub trait Copy: Clone { - | ^^^^^ required by this bound in `Copy` = note: this error originates in the derive macro `Copy` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider annotating `Test2` with `#[derive(Clone)]` | diff --git a/src/test/ui/match/match-unresolved-one-arm.stderr b/src/test/ui/match/match-unresolved-one-arm.stderr index 9eadb88a8ba..e3b501b2fd5 100644 --- a/src/test/ui/match/match-unresolved-one-arm.stderr +++ b/src/test/ui/match/match-unresolved-one-arm.stderr @@ -6,8 +6,8 @@ LL | let x = match () { | help: consider giving `x` an explicit type | -LL | let x: _ = match () { - | +++ +LL | let x: /* Type */ = match () { + | ++++++++++++ error: aborting due to previous error diff --git a/src/test/ui/methods/issues/issue-105732.rs b/src/test/ui/methods/issues/issue-105732.rs new file mode 100644 index 00000000000..98b7a8d0d04 --- /dev/null +++ b/src/test/ui/methods/issues/issue-105732.rs @@ -0,0 +1,13 @@ +#![feature(auto_traits)] + +auto trait Foo { + fn g(&self); //~ ERROR auto traits cannot have associated items +} + +trait Bar { + fn f(&self) { + self.g(); //~ ERROR the method `g` exists for reference `&Self`, but its trait bounds were not satisfied + } +} + +fn main() {} diff --git a/src/test/ui/methods/issues/issue-105732.stderr b/src/test/ui/methods/issues/issue-105732.stderr new file mode 100644 index 00000000000..fb2bdf47de7 --- /dev/null +++ b/src/test/ui/methods/issues/issue-105732.stderr @@ -0,0 +1,28 @@ +error[E0380]: auto traits cannot have associated items + --> $DIR/issue-105732.rs:4:8 + | +LL | auto trait Foo { + | --- auto trait cannot have associated items +LL | fn g(&self); + | ---^-------- help: remove these associated items + +error[E0599]: the method `g` exists for reference `&Self`, but its trait bounds were not satisfied + --> $DIR/issue-105732.rs:9:14 + | +LL | self.g(); + | ^ + | + = note: the following trait bounds were not satisfied: + `Self: Foo` + which is required by `&Self: Foo` + `&Self: Foo` + = help: items from traits can only be used if the type parameter is bounded by the trait +help: the following trait defines an item `g`, perhaps you need to add a supertrait for it: + | +LL | trait Bar: Foo { + | +++++ + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0380, E0599. +For more information about an error, try `rustc --explain E0380`. diff --git a/src/test/ui/methods/method-call-err-msg.stderr b/src/test/ui/methods/method-call-err-msg.stderr index a4ffb864dad..3f4e647491e 100644 --- a/src/test/ui/methods/method-call-err-msg.stderr +++ b/src/test/ui/methods/method-call-err-msg.stderr @@ -61,11 +61,8 @@ LL | .take() = note: the following trait bounds were not satisfied: `Foo: Iterator` which is required by `&mut Foo: Iterator` -note: the following trait must be implemented +note: the trait `Iterator` must be implemented --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | pub trait Iterator { - | ^^^^^^^^^^^^^^^^^^ = help: items from traits can only be used if the trait is implemented and in scope = note: the following trait defines an item `take`, perhaps you need to implement it: candidate #1: `Iterator` diff --git a/src/test/ui/methods/method-call-lifetime-args-unresolved.stderr b/src/test/ui/methods/method-call-lifetime-args-unresolved.stderr index 62f20d6d50c..25ad360b329 100644 --- a/src/test/ui/methods/method-call-lifetime-args-unresolved.stderr +++ b/src/test/ui/methods/method-call-lifetime-args-unresolved.stderr @@ -11,11 +11,9 @@ warning: cannot specify lifetime arguments explicitly if late bound lifetime par | LL | 0.clone::<'a>(); | ^^ + --> $SRC_DIR/core/src/clone.rs:LL:COL | - ::: $SRC_DIR/core/src/clone.rs:LL:COL - | -LL | fn clone(&self) -> Self; - | - the late bound lifetime parameter is introduced here + = note: the late bound lifetime parameter is introduced here | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #42868 <https://github.com/rust-lang/rust/issues/42868> diff --git a/src/test/ui/methods/method-not-found-generic-arg-elision.stderr b/src/test/ui/methods/method-not-found-generic-arg-elision.stderr index fc42d1a4dcd..8846efba871 100644 --- a/src/test/ui/methods/method-not-found-generic-arg-elision.stderr +++ b/src/test/ui/methods/method-not-found-generic-arg-elision.stderr @@ -23,7 +23,7 @@ error[E0599]: no method named `extend` found for struct `Map` in the current sco --> $DIR/method-not-found-generic-arg-elision.rs:87:29 | LL | v.iter().map(|x| x * x).extend(std::iter::once(100)); - | ^^^^^^ method not found in `Map<std::slice::Iter<'_, i32>, [closure@$DIR/method-not-found-generic-arg-elision.rs:87:18: 87:21]>` + | ^^^^^^ method not found in `Map<Iter<'_, i32>, [closure@method-not-found-generic-arg-elision.rs:87:18]>` error[E0599]: no method named `method` found for struct `Wrapper<bool>` in the current scope --> $DIR/method-not-found-generic-arg-elision.rs:90:13 diff --git a/src/test/ui/mir/field-projection-invariant.rs b/src/test/ui/mir/field-projection-invariant.rs new file mode 100644 index 00000000000..b5d6add043c --- /dev/null +++ b/src/test/ui/mir/field-projection-invariant.rs @@ -0,0 +1,24 @@ +// build-pass +struct Inv<'a>(&'a mut &'a ()); +enum Foo<T> { + Bar, + Var(T), +} +type Supertype = Foo<for<'a> fn(Inv<'a>, Inv<'a>)>; + +fn foo(x: Foo<for<'a, 'b> fn(Inv<'a>, Inv<'b>)>) { + match x { + Supertype::Bar => {} + Supertype::Var(x) => {} + } +} + +fn foo_nested(x: Foo<Foo<for<'a, 'b> fn(Inv<'a>, Inv<'b>)>>) { + match x { + Foo::Bar => {} + Foo::Var(Supertype::Bar) => {} + Foo::Var(Supertype::Var(x)) => {} + } +} + +fn main() {} diff --git a/src/test/ui/mir/field-ty-ascription-enums.rs b/src/test/ui/mir/field-ty-ascription-enums.rs new file mode 100644 index 00000000000..179af617090 --- /dev/null +++ b/src/test/ui/mir/field-ty-ascription-enums.rs @@ -0,0 +1,15 @@ +// build-pass + +enum Foo<T> { + Var(T), +} // `T` is covariant. + +fn foo<'b>(x: Foo<for<'a> fn(&'a ())>) { + let Foo::Var(x): Foo<fn(&'b ())> = x; +} + +fn foo_nested<'b>(x: Foo<Foo<for<'a> fn(&'a ())>>) { + let Foo::Var(Foo::Var(x)): Foo<Foo<fn(&'b ())>> = x; +} + +fn main() {} diff --git a/src/test/ui/mir/field-ty-ascription.rs b/src/test/ui/mir/field-ty-ascription.rs new file mode 100644 index 00000000000..178c7916bc5 --- /dev/null +++ b/src/test/ui/mir/field-ty-ascription.rs @@ -0,0 +1,37 @@ +// build-pass + +struct Foo<T>(T); // `T` is covariant. + +struct Bar<T> { + x: T, +} // `T` is covariant. + +fn bar<'b>(x: Bar<for<'a> fn(&'a ())>) { + let Bar { x }: Bar<fn(&'b ())> = x; +} + +fn bar_nested<'b>(x: Bar<Bar<for<'a> fn(&'a ())>>) { + let Bar { x: Bar { x } }: Bar<Bar<fn(&'b ())>> = x; +} + +fn bar_foo_nested<'b>(x: Bar<Foo<for<'a> fn(&'a ())>>) { + let Bar { x: Foo ( x ) }: Bar<Foo<fn(&'b ())>> = x; +} + +fn foo<'b>(x: Foo<for<'a> fn(&'a ())>) { + let Foo(y): Foo<fn(&'b ())> = x; +} + +fn foo_nested<'b>(x: Foo<Foo<for<'a> fn(&'a ())>>) { + let Foo(Foo(y)): Foo<Foo<fn(&'b ())>> = x; +} + +fn tuple<'b>(x: (u32, for<'a> fn(&'a ()))) { + let (_, y): (u32, fn(&'b ())) = x; +} + +fn tuple_nested<'b>(x: (u32, (u32, for<'a> fn(&'a ())))) { + let (_, (_, y)): (u32, (u32, fn(&'b ()))) = x; +} + +fn main() {} diff --git a/src/test/ui/mismatched_types/assignment-operator-unimplemented.stderr b/src/test/ui/mismatched_types/assignment-operator-unimplemented.stderr index ffd95b48ac2..2393791a9b2 100644 --- a/src/test/ui/mismatched_types/assignment-operator-unimplemented.stderr +++ b/src/test/ui/mismatched_types/assignment-operator-unimplemented.stderr @@ -11,11 +11,8 @@ note: an implementation of `AddAssign<_>` might be missing for `Foo` | LL | struct Foo; | ^^^^^^^^^^ must implement `AddAssign<_>` -note: the following trait must be implemented +note: the trait `AddAssign` must be implemented --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | pub trait AddAssign<Rhs = Self> { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to previous error diff --git a/src/test/ui/mismatched_types/closure-arg-count.stderr b/src/test/ui/mismatched_types/closure-arg-count.stderr index a2bf2e8d5b7..2ecab9f024a 100644 --- a/src/test/ui/mismatched_types/closure-arg-count.stderr +++ b/src/test/ui/mismatched_types/closure-arg-count.stderr @@ -128,9 +128,6 @@ LL | fn foo() {} | note: required by a bound in `map` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | F: FnMut(Self::Item) -> B, - | ^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::map` error[E0593]: closure is expected to take a single 2-tuple as argument, but it takes 3 distinct arguments --> $DIR/closure-arg-count.rs:27:57 @@ -144,9 +141,6 @@ LL | let _it = vec![1, 2, 3].into_iter().enumerate().map(bar); | note: required by a bound in `map` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | F: FnMut(Self::Item) -> B, - | ^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::map` error[E0593]: function is expected to take a single 2-tuple as argument, but it takes 2 distinct arguments --> $DIR/closure-arg-count.rs:29:57 @@ -161,9 +155,6 @@ LL | fn qux(x: usize, y: usize) {} | note: required by a bound in `map` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | F: FnMut(Self::Item) -> B, - | ^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::map` error[E0593]: function is expected to take 1 argument, but it takes 2 arguments --> $DIR/closure-arg-count.rs:32:45 @@ -175,9 +166,6 @@ LL | let _it = vec![1, 2, 3].into_iter().map(usize::checked_add); | note: required by a bound in `map` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | F: FnMut(Self::Item) -> B, - | ^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::map` error[E0593]: function is expected to take 0 arguments, but it takes 1 argument --> $DIR/closure-arg-count.rs:35:10 diff --git a/src/test/ui/mismatched_types/closure-arg-type-mismatch.stderr b/src/test/ui/mismatched_types/closure-arg-type-mismatch.stderr index f2e2a4c7fd5..fab9b7edc0c 100644 --- a/src/test/ui/mismatched_types/closure-arg-type-mismatch.stderr +++ b/src/test/ui/mismatched_types/closure-arg-type-mismatch.stderr @@ -2,17 +2,16 @@ error[E0631]: type mismatch in closure arguments --> $DIR/closure-arg-type-mismatch.rs:3:14 | LL | a.iter().map(|_: (u32, u32)| 45); - | ^^^ --------------- found signature defined here - | | + | ^^^ --------------- + | | | | + | | | help: consider borrowing the argument: `&(u32, u32)` + | | found signature defined here | expected due to this | = note: expected closure signature `fn(&(u32, u32)) -> _` found closure signature `fn((u32, u32)) -> _` note: required by a bound in `map` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | F: FnMut(Self::Item) -> B, - | ^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::map` error[E0631]: type mismatch in closure arguments --> $DIR/closure-arg-type-mismatch.rs:4:14 @@ -26,9 +25,6 @@ LL | a.iter().map(|_: &(u16, u16)| 45); found closure signature `for<'a> fn(&'a (u16, u16)) -> _` note: required by a bound in `map` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | F: FnMut(Self::Item) -> B, - | ^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::map` error[E0631]: type mismatch in closure arguments --> $DIR/closure-arg-type-mismatch.rs:5:14 @@ -42,9 +38,6 @@ LL | a.iter().map(|_: (u16, u16)| 45); found closure signature `fn((u16, u16)) -> _` note: required by a bound in `map` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | F: FnMut(Self::Item) -> B, - | ^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::map` error: aborting due to 3 previous errors diff --git a/src/test/ui/mismatched_types/issue-35030.stderr b/src/test/ui/mismatched_types/issue-35030.stderr index 5ea9bcfc122..680aff1726f 100644 --- a/src/test/ui/mismatched_types/issue-35030.stderr +++ b/src/test/ui/mismatched_types/issue-35030.stderr @@ -13,9 +13,6 @@ LL | Some(true) found type `bool` (`bool`) note: tuple variant defined here --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | Some(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^^^ error: aborting due to previous error diff --git a/src/test/ui/mismatched_types/issue-36053-2.stderr b/src/test/ui/mismatched_types/issue-36053-2.stderr index b3509abbf84..72fb0e4d774 100644 --- a/src/test/ui/mismatched_types/issue-36053-2.stderr +++ b/src/test/ui/mismatched_types/issue-36053-2.stderr @@ -2,31 +2,28 @@ error[E0631]: type mismatch in closure arguments --> $DIR/issue-36053-2.rs:7:32 | LL | once::<&str>("str").fuse().filter(|a: &str| true).count(); - | ^^^^^^ --------- found signature defined here - | | + | ^^^^^^ --------- + | | | | + | | | help: consider borrowing the argument: `&&str` + | | found signature defined here | expected due to this | = note: expected closure signature `for<'a> fn(&'a &str) -> _` found closure signature `for<'a> fn(&'a str) -> _` note: required by a bound in `filter` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | P: FnMut(&Self::Item) -> bool, - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::filter` -error[E0599]: the method `count` exists for struct `Filter<Fuse<std::iter::Once<&str>>, [closure@$DIR/issue-36053-2.rs:7:39: 7:48]>`, but its trait bounds were not satisfied +error[E0599]: the method `count` exists for struct `Filter<Fuse<Once<&str>>, [closure@issue-36053-2.rs:7:39]>`, but its trait bounds were not satisfied --> $DIR/issue-36053-2.rs:7:55 | LL | once::<&str>("str").fuse().filter(|a: &str| true).count(); - | --------- ^^^^^ method cannot be called on `Filter<Fuse<std::iter::Once<&str>>, [closure@$DIR/issue-36053-2.rs:7:39: 7:48]>` due to unsatisfied trait bounds + | --------- ^^^^^ method cannot be called due to unsatisfied trait bounds | | | doesn't satisfy `<_ as FnOnce<(&&str,)>>::Output = bool` | doesn't satisfy `_: FnMut<(&&str,)>` + --> $SRC_DIR/core/src/iter/adapters/filter.rs:LL:COL | - ::: $SRC_DIR/core/src/iter/adapters/filter.rs:LL:COL - | -LL | pub struct Filter<I, P> { - | ----------------------- doesn't satisfy `_: Iterator` + = note: doesn't satisfy `_: Iterator` | = note: the following trait bounds were not satisfied: `<[closure@$DIR/issue-36053-2.rs:7:39: 7:48] as FnOnce<(&&str,)>>::Output = bool` diff --git a/src/test/ui/mismatched_types/issue-47706-trait.stderr b/src/test/ui/mismatched_types/issue-47706-trait.stderr index d596b4a69f3..a5f38dd5366 100644 --- a/src/test/ui/mismatched_types/issue-47706-trait.stderr +++ b/src/test/ui/mismatched_types/issue-47706-trait.stderr @@ -10,9 +10,6 @@ LL | None::<()>.map(Self::f); | note: required by a bound in `Option::<T>::map` --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | F: ~const FnOnce(T) -> U, - | ^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Option::<T>::map` error: aborting due to previous error diff --git a/src/test/ui/mismatched_types/issue-47706.stderr b/src/test/ui/mismatched_types/issue-47706.stderr index 8b856368401..d9d408844d0 100644 --- a/src/test/ui/mismatched_types/issue-47706.stderr +++ b/src/test/ui/mismatched_types/issue-47706.stderr @@ -11,9 +11,6 @@ LL | self.foo.map(Foo::new) | note: required by a bound in `Option::<T>::map` --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | F: ~const FnOnce(T) -> U, - | ^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Option::<T>::map` error[E0593]: function is expected to take 0 arguments, but it takes 1 argument --> $DIR/issue-47706.rs:27:9 diff --git a/src/test/ui/mismatched_types/issue-74918-missing-lifetime.stderr b/src/test/ui/mismatched_types/issue-74918-missing-lifetime.stderr index 94a9c97576f..b75c7a99fdd 100644 --- a/src/test/ui/mismatched_types/issue-74918-missing-lifetime.stderr +++ b/src/test/ui/mismatched_types/issue-74918-missing-lifetime.stderr @@ -14,11 +14,9 @@ error: `impl` item signature doesn't match `trait` item signature | LL | fn next(&mut self) -> Option<IteratorChunk<T, S>> { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ found `fn(&'1 mut ChunkingIterator<T, S>) -> Option<IteratorChunk<'1, T, S>>` + --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL | - ::: $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | fn next(&mut self) -> Option<Self::Item>; - | ----------------------------------------- expected `fn(&'1 mut ChunkingIterator<T, S>) -> Option<IteratorChunk<'static, T, S>>` + = note: expected `fn(&'1 mut ChunkingIterator<T, S>) -> Option<IteratorChunk<'static, T, S>>` | = note: expected `fn(&'1 mut ChunkingIterator<T, S>) -> Option<IteratorChunk<'static, T, S>>` found `fn(&'1 mut ChunkingIterator<T, S>) -> Option<IteratorChunk<'1, T, S>>` diff --git a/src/test/ui/mismatched_types/method-help-unsatisfied-bound.stderr b/src/test/ui/mismatched_types/method-help-unsatisfied-bound.stderr index 36748fae13c..d3b7525072f 100644 --- a/src/test/ui/mismatched_types/method-help-unsatisfied-bound.stderr +++ b/src/test/ui/mismatched_types/method-help-unsatisfied-bound.stderr @@ -1,18 +1,13 @@ error[E0277]: `Foo` doesn't implement `Debug` - --> $DIR/method-help-unsatisfied-bound.rs:5:5 + --> $DIR/method-help-unsatisfied-bound.rs:5:7 | LL | a.unwrap(); - | ^ ------ required by a bound introduced by this call - | | - | `Foo` cannot be formatted using `{:?}` + | ^^^^^^ `Foo` cannot be formatted using `{:?}` | = help: the trait `Debug` is not implemented for `Foo` = note: add `#[derive(Debug)]` to `Foo` or manually `impl Debug for Foo` note: required by a bound in `Result::<T, E>::unwrap` --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | E: fmt::Debug, - | ^^^^^^^^^^ required by this bound in `Result::<T, E>::unwrap` help: consider annotating `Foo` with `#[derive(Debug)]` | LL | #[derive(Debug)] diff --git a/src/test/ui/mismatched_types/similar_paths.stderr b/src/test/ui/mismatched_types/similar_paths.stderr index e65ae58d4ce..46a38332552 100644 --- a/src/test/ui/mismatched_types/similar_paths.stderr +++ b/src/test/ui/mismatched_types/similar_paths.stderr @@ -9,9 +9,6 @@ LL | Some(42_u8) = note: enum `std::option::Option` and enum `Option` have similar names, but are actually distinct types note: enum `std::option::Option` is defined in crate `core` --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | pub enum Option<T> { - | ^^^^^^^^^^^^^^^^^^ note: enum `Option` is defined in the current crate --> $DIR/similar_paths.rs:1:1 | diff --git a/src/test/ui/missing/missing-alloc_error_handler.rs b/src/test/ui/missing/missing-alloc_error_handler.rs deleted file mode 100644 index 4d378f010ed..00000000000 --- a/src/test/ui/missing/missing-alloc_error_handler.rs +++ /dev/null @@ -1,23 +0,0 @@ -// compile-flags: -C panic=abort -// no-prefer-dynamic - -#![no_std] -#![crate_type = "staticlib"] -#![feature(alloc_error_handler)] - -#[panic_handler] -fn panic(_: &core::panic::PanicInfo) -> ! { - loop {} -} - -extern crate alloc; - -#[global_allocator] -static A: MyAlloc = MyAlloc; - -struct MyAlloc; - -unsafe impl core::alloc::GlobalAlloc for MyAlloc { - unsafe fn alloc(&self, _: core::alloc::Layout) -> *mut u8 { 0 as _ } - unsafe fn dealloc(&self, _: *mut u8, _: core::alloc::Layout) {} -} diff --git a/src/test/ui/missing/missing-alloc_error_handler.stderr b/src/test/ui/missing/missing-alloc_error_handler.stderr deleted file mode 100644 index 995fa7cf85e..00000000000 --- a/src/test/ui/missing/missing-alloc_error_handler.stderr +++ /dev/null @@ -1,6 +0,0 @@ -error: `#[alloc_error_handler]` function required, but not found - -note: use `#![feature(default_alloc_error_handler)]` for a default error handler - -error: aborting due to previous error - diff --git a/src/test/ui/moves/issue-99470-move-out-of-some.stderr b/src/test/ui/moves/issue-99470-move-out-of-some.stderr index 6e4a4e5ba22..c5159471fe3 100644 --- a/src/test/ui/moves/issue-99470-move-out-of-some.stderr +++ b/src/test/ui/moves/issue-99470-move-out-of-some.stderr @@ -5,11 +5,16 @@ LL | match x { | ^ LL | LL | &Some(_y) => (), - | --------- - | | | - | | data moved here - | | move occurs because `_y` has type `Box<i32>`, which does not implement the `Copy` trait - | help: consider removing the `&`: `Some(_y)` + | -- + | | + | data moved here + | move occurs because `_y` has type `Box<i32>`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - &Some(_y) => (), +LL + Some(_y) => (), + | error: aborting due to previous error diff --git a/src/test/ui/moves/move-fn-self-receiver.stderr b/src/test/ui/moves/move-fn-self-receiver.stderr index c13dc58826e..b3f95ee192a 100644 --- a/src/test/ui/moves/move-fn-self-receiver.stderr +++ b/src/test/ui/moves/move-fn-self-receiver.stderr @@ -6,11 +6,8 @@ LL | val.0.into_iter().next(); LL | val.0; | ^^^^^ value used here after move | -note: this function takes ownership of the receiver `self`, which moves `val.0` +note: `into_iter` takes ownership of the receiver `self`, which moves `val.0` --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | fn into_iter(self) -> Self::IntoIter; - | ^^^^ = note: move occurs because `val.0` has type `Vec<bool>`, which does not implement the `Copy` trait error[E0382]: use of moved value: `foo` @@ -23,7 +20,7 @@ LL | foo.use_self(); LL | foo; | ^^^ value used here after move | -note: this function takes ownership of the receiver `self`, which moves `foo` +note: `Foo::use_self` takes ownership of the receiver `self`, which moves `foo` --> $DIR/move-fn-self-receiver.rs:13:17 | LL | fn use_self(self) {} @@ -49,7 +46,7 @@ LL | boxed_foo.use_box_self(); LL | boxed_foo; | ^^^^^^^^^ value used here after move | -note: this function takes ownership of the receiver `self`, which moves `boxed_foo` +note: `Foo::use_box_self` takes ownership of the receiver `self`, which moves `boxed_foo` --> $DIR/move-fn-self-receiver.rs:14:21 | LL | fn use_box_self(self: Box<Self>) {} @@ -65,7 +62,7 @@ LL | pin_box_foo.use_pin_box_self(); LL | pin_box_foo; | ^^^^^^^^^^^ value used here after move | -note: this function takes ownership of the receiver `self`, which moves `pin_box_foo` +note: `Foo::use_pin_box_self` takes ownership of the receiver `self`, which moves `pin_box_foo` --> $DIR/move-fn-self-receiver.rs:15:25 | LL | fn use_pin_box_self(self: Pin<Box<Self>>) {} @@ -91,7 +88,7 @@ LL | rc_foo.use_rc_self(); LL | rc_foo; | ^^^^^^ value used here after move | -note: this function takes ownership of the receiver `self`, which moves `rc_foo` +note: `Foo::use_rc_self` takes ownership of the receiver `self`, which moves `rc_foo` --> $DIR/move-fn-self-receiver.rs:16:20 | LL | fn use_rc_self(self: Rc<Self>) {} @@ -113,9 +110,6 @@ LL | foo_add; | note: calling this operator moves the left-hand side --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | fn add(self, rhs: Rhs) -> Self::Output; - | ^^^^ error[E0382]: use of moved value: `implicit_into_iter` --> $DIR/move-fn-self-receiver.rs:63:5 @@ -157,7 +151,7 @@ LL | for _val in container.custom_into_iter() {} LL | container; | ^^^^^^^^^ value used here after move | -note: this function takes ownership of the receiver `self`, which moves `container` +note: `Container::custom_into_iter` takes ownership of the receiver `self`, which moves `container` --> $DIR/move-fn-self-receiver.rs:23:25 | LL | fn custom_into_iter(self) -> impl Iterator<Item = bool> { diff --git a/src/test/ui/moves/move-out-of-array-ref.stderr b/src/test/ui/moves/move-out-of-array-ref.stderr index 0caa0b83a4c..26d4996d6cb 100644 --- a/src/test/ui/moves/move-out-of-array-ref.stderr +++ b/src/test/ui/moves/move-out-of-array-ref.stderr @@ -2,45 +2,61 @@ error[E0508]: cannot move out of type `[D; 4]`, a non-copy array --> $DIR/move-out-of-array-ref.rs:8:24 | LL | let [_, e, _, _] = *a; - | - ^^ - | | | - | | cannot move out of here - | | help: consider borrowing here: `&*a` + | - ^^ cannot move out of here + | | | data moved here | move occurs because `e` has type `D`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let [_, e, _, _] = *a; +LL + let [_, e, _, _] = a; + | error[E0508]: cannot move out of type `[D; 4]`, a non-copy array --> $DIR/move-out-of-array-ref.rs:13:27 | LL | let [_, s @ .. , _] = *a; - | - ^^ - | | | - | | cannot move out of here - | | help: consider borrowing here: `&*a` + | - ^^ cannot move out of here + | | | data moved here | move occurs because `s` has type `[D; 2]`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let [_, s @ .. , _] = *a; +LL + let [_, s @ .. , _] = a; + | error[E0508]: cannot move out of type `[D; 4]`, a non-copy array --> $DIR/move-out-of-array-ref.rs:18:24 | LL | let [_, e, _, _] = *a; - | - ^^ - | | | - | | cannot move out of here - | | help: consider borrowing here: `&*a` + | - ^^ cannot move out of here + | | | data moved here | move occurs because `e` has type `D`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let [_, e, _, _] = *a; +LL + let [_, e, _, _] = a; + | error[E0508]: cannot move out of type `[D; 4]`, a non-copy array --> $DIR/move-out-of-array-ref.rs:23:27 | LL | let [_, s @ .. , _] = *a; - | - ^^ - | | | - | | cannot move out of here - | | help: consider borrowing here: `&*a` + | - ^^ cannot move out of here + | | | data moved here | move occurs because `s` has type `[D; 2]`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let [_, s @ .. , _] = *a; +LL + let [_, s @ .. , _] = a; + | error: aborting due to 4 previous errors diff --git a/src/test/ui/moves/move-out-of-slice-1.stderr b/src/test/ui/moves/move-out-of-slice-1.stderr index ce5ddb3e183..5a0357cf567 100644 --- a/src/test/ui/moves/move-out-of-slice-1.stderr +++ b/src/test/ui/moves/move-out-of-slice-1.stderr @@ -8,6 +8,11 @@ LL | box [a] => {}, | | | data moved here | move occurs because `a` has type `A`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | box [ref a] => {}, + | +++ error: aborting due to previous error diff --git a/src/test/ui/moves/move-out-of-slice-2.rs b/src/test/ui/moves/move-out-of-slice-2.rs index 59c02d42bf1..2f7394fbfd3 100644 --- a/src/test/ui/moves/move-out-of-slice-2.rs +++ b/src/test/ui/moves/move-out-of-slice-2.rs @@ -1,5 +1,6 @@ #![feature(unsized_locals)] //~^ WARN the feature `unsized_locals` is incomplete +#![allow(unused)] struct A; #[derive(Clone, Copy)] diff --git a/src/test/ui/moves/move-out-of-slice-2.stderr b/src/test/ui/moves/move-out-of-slice-2.stderr index 46357ce6f2e..b46854cd6b4 100644 --- a/src/test/ui/moves/move-out-of-slice-2.stderr +++ b/src/test/ui/moves/move-out-of-slice-2.stderr @@ -8,7 +8,7 @@ LL | #![feature(unsized_locals)] = note: `#[warn(incomplete_features)]` on by default error[E0508]: cannot move out of type `[A]`, a non-copy slice - --> $DIR/move-out-of-slice-2.rs:10:11 + --> $DIR/move-out-of-slice-2.rs:11:11 | LL | match *a { | ^^ cannot move out of here @@ -18,9 +18,14 @@ LL | [a @ ..] => {} | | | data moved here | move occurs because `a` has type `[A]`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | [ref a @ ..] => {} + | +++ error[E0508]: cannot move out of type `[A]`, a non-copy slice - --> $DIR/move-out-of-slice-2.rs:16:11 + --> $DIR/move-out-of-slice-2.rs:17:11 | LL | match *b { | ^^ cannot move out of here @@ -30,9 +35,14 @@ LL | [_, _, b @ .., _] => {} | | | data moved here | move occurs because `b` has type `[A]`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | [_, _, ref b @ .., _] => {} + | +++ error[E0508]: cannot move out of type `[C]`, a non-copy slice - --> $DIR/move-out-of-slice-2.rs:24:11 + --> $DIR/move-out-of-slice-2.rs:25:11 | LL | match *c { | ^^ cannot move out of here @@ -42,9 +52,14 @@ LL | [c @ ..] => {} | | | data moved here | move occurs because `c` has type `[C]`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | [ref c @ ..] => {} + | +++ error[E0508]: cannot move out of type `[C]`, a non-copy slice - --> $DIR/move-out-of-slice-2.rs:30:11 + --> $DIR/move-out-of-slice-2.rs:31:11 | LL | match *d { | ^^ cannot move out of here @@ -54,6 +69,11 @@ LL | [_, _, d @ .., _] => {} | | | data moved here | move occurs because `d` has type `[C]`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | [_, _, ref d @ .., _] => {} + | +++ error: aborting due to 4 previous errors; 1 warning emitted diff --git a/src/test/ui/moves/moves-based-on-type-access-to-field.stderr b/src/test/ui/moves/moves-based-on-type-access-to-field.stderr index a49ee31b466..0b1a623a013 100644 --- a/src/test/ui/moves/moves-based-on-type-access-to-field.stderr +++ b/src/test/ui/moves/moves-based-on-type-access-to-field.stderr @@ -8,11 +8,8 @@ LL | consume(x.into_iter().next().unwrap()); LL | touch(&x[0]); | ^ value borrowed here after move | -note: this function takes ownership of the receiver `self`, which moves `x` +note: `into_iter` takes ownership of the receiver `self`, which moves `x` --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | fn into_iter(self) -> Self::IntoIter; - | ^^^^ help: consider cloning the value if the performance cost is acceptable | LL | consume(x.clone().into_iter().next().unwrap()); diff --git a/src/test/ui/moves/moves-based-on-type-block-bad.stderr b/src/test/ui/moves/moves-based-on-type-block-bad.stderr index 5ed91a0d559..df09ababa5a 100644 --- a/src/test/ui/moves/moves-based-on-type-block-bad.stderr +++ b/src/test/ui/moves/moves-based-on-type-block-bad.stderr @@ -2,13 +2,18 @@ error[E0507]: cannot move out of `hellothere.x` as enum variant `Bar` which is b --> $DIR/moves-based-on-type-block-bad.rs:22:19 | LL | match hellothere.x { - | ^^^^^^^^^^^^ help: consider borrowing here: `&hellothere.x` + | ^^^^^^^^^^^^ LL | box E::Foo(_) => {} LL | box E::Bar(x) => println!("{}", x.to_string()), | - | | | data moved here | move occurs because `x` has type `Box<isize>`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | match &hellothere.x { + | + error: aborting due to previous error diff --git a/src/test/ui/moves/moves-based-on-type-exprs.stderr b/src/test/ui/moves/moves-based-on-type-exprs.stderr index 838b1282cb4..ae76889f104 100644 --- a/src/test/ui/moves/moves-based-on-type-exprs.stderr +++ b/src/test/ui/moves/moves-based-on-type-exprs.stderr @@ -160,11 +160,8 @@ LL | let _y = x.into_iter().next().unwrap(); LL | touch(&x); | ^^ value borrowed here after move | -note: this function takes ownership of the receiver `self`, which moves `x` +note: `into_iter` takes ownership of the receiver `self`, which moves `x` --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | fn into_iter(self) -> Self::IntoIter; - | ^^^^ help: consider cloning the value if the performance cost is acceptable | LL | let _y = x.clone().into_iter().next().unwrap(); @@ -180,11 +177,8 @@ LL | let _y = [x.into_iter().next().unwrap(); 1]; LL | touch(&x); | ^^ value borrowed here after move | -note: this function takes ownership of the receiver `self`, which moves `x` +note: `into_iter` takes ownership of the receiver `self`, which moves `x` --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | fn into_iter(self) -> Self::IntoIter; - | ^^^^ help: consider cloning the value if the performance cost is acceptable | LL | let _y = [x.clone().into_iter().next().unwrap(); 1]; diff --git a/src/test/ui/never_type/fallback-closure-wrap.fallback.stderr b/src/test/ui/never_type/fallback-closure-wrap.fallback.stderr index 45cf3723483..a0f790dba15 100644 --- a/src/test/ui/never_type/fallback-closure-wrap.fallback.stderr +++ b/src/test/ui/never_type/fallback-closure-wrap.fallback.stderr @@ -1,4 +1,4 @@ -error[E0271]: expected `[closure@$DIR/fallback-closure-wrap.rs:18:40: 18:47]` to be a closure that returns `()`, but it returns `!` +error[E0271]: expected `[closure@fallback-closure-wrap.rs:18:40]` to be a closure that returns `()`, but it returns `!` --> $DIR/fallback-closure-wrap.rs:18:31 | LL | let error = Closure::wrap(Box::new(move || { diff --git a/src/test/ui/never_type/feature-gate-never_type_fallback.stderr b/src/test/ui/never_type/feature-gate-never_type_fallback.stderr index 6dc039fc35d..2db1cc4b776 100644 --- a/src/test/ui/never_type/feature-gate-never_type_fallback.stderr +++ b/src/test/ui/never_type/feature-gate-never_type_fallback.stderr @@ -5,7 +5,7 @@ LL | foo(panic!()) | --- ^^^^^^^^ | | | | | the trait `T` is not implemented for `()` - | | this tail expression is of type `_` + | | this tail expression is of type `()` | required by a bound introduced by this call | note: required by a bound in `foo` diff --git a/src/test/ui/never_type/issue-52443.stderr b/src/test/ui/never_type/issue-52443.stderr index 0910e9ad77a..de5c9c56016 100644 --- a/src/test/ui/never_type/issue-52443.stderr +++ b/src/test/ui/never_type/issue-52443.stderr @@ -46,9 +46,6 @@ LL | [(); { for _ in 0usize.. {}; 0}]; | note: impl defined here, but it is not `const` --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | impl<I: Iterator> const IntoIterator for I { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: calls in constants are limited to constant functions, tuple structs and tuple variants error[E0658]: mutable references are not allowed in constants diff --git a/src/test/ui/never_type/issue-96335.stderr b/src/test/ui/never_type/issue-96335.stderr index 168cf2f8353..e148b983e8e 100644 --- a/src/test/ui/never_type/issue-96335.stderr +++ b/src/test/ui/never_type/issue-96335.stderr @@ -26,9 +26,6 @@ LL | 0.....{loop{}1}; found struct `RangeTo<{integer}>` note: associated function defined here --> $SRC_DIR/core/src/ops/range.rs:LL:COL - | -LL | pub const fn new(start: Idx, end: Idx) -> Self { - | ^^^ error: aborting due to 2 previous errors diff --git a/src/test/ui/nll/cannot-move-block-spans.stderr b/src/test/ui/nll/cannot-move-block-spans.stderr index 56a5cdff073..0dc5c08ea5f 100644 --- a/src/test/ui/nll/cannot-move-block-spans.stderr +++ b/src/test/ui/nll/cannot-move-block-spans.stderr @@ -2,28 +2,37 @@ error[E0507]: cannot move out of `*r` which is behind a shared reference --> $DIR/cannot-move-block-spans.rs:5:15 | LL | let x = { *r }; - | ^^ - | | - | move occurs because `*r` has type `String`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*r` + | ^^ move occurs because `*r` has type `String`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let x = { *r }; +LL + let x = { r }; + | error[E0507]: cannot move out of `*r` which is behind a shared reference --> $DIR/cannot-move-block-spans.rs:6:22 | LL | let y = unsafe { *r }; - | ^^ - | | - | move occurs because `*r` has type `String`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*r` + | ^^ move occurs because `*r` has type `String`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let y = unsafe { *r }; +LL + let y = unsafe { r }; + | error[E0507]: cannot move out of `*r` which is behind a shared reference --> $DIR/cannot-move-block-spans.rs:7:26 | LL | let z = loop { break *r; }; - | ^^ - | | - | move occurs because `*r` has type `String`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*r` + | ^^ move occurs because `*r` has type `String`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let z = loop { break *r; }; +LL + let z = loop { break r; }; + | error[E0508]: cannot move out of type `[String; 2]`, a non-copy array --> $DIR/cannot-move-block-spans.rs:11:15 @@ -33,7 +42,11 @@ LL | let x = { arr[0] }; | | | cannot move out of here | move occurs because `arr[_]` has type `String`, which does not implement the `Copy` trait - | help: consider borrowing here: `&arr[0]` + | +help: consider borrowing here + | +LL | let x = { &arr[0] }; + | + error[E0508]: cannot move out of type `[String; 2]`, a non-copy array --> $DIR/cannot-move-block-spans.rs:12:22 @@ -43,7 +56,11 @@ LL | let y = unsafe { arr[0] }; | | | cannot move out of here | move occurs because `arr[_]` has type `String`, which does not implement the `Copy` trait - | help: consider borrowing here: `&arr[0]` + | +help: consider borrowing here + | +LL | let y = unsafe { &arr[0] }; + | + error[E0508]: cannot move out of type `[String; 2]`, a non-copy array --> $DIR/cannot-move-block-spans.rs:13:26 @@ -53,34 +70,47 @@ LL | let z = loop { break arr[0]; }; | | | cannot move out of here | move occurs because `arr[_]` has type `String`, which does not implement the `Copy` trait - | help: consider borrowing here: `&arr[0]` + | +help: consider borrowing here + | +LL | let z = loop { break &arr[0]; }; + | + error[E0507]: cannot move out of `*r` which is behind a shared reference --> $DIR/cannot-move-block-spans.rs:17:38 | LL | let x = { let mut u = 0; u += 1; *r }; - | ^^ - | | - | move occurs because `*r` has type `String`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*r` + | ^^ move occurs because `*r` has type `String`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let x = { let mut u = 0; u += 1; *r }; +LL + let x = { let mut u = 0; u += 1; r }; + | error[E0507]: cannot move out of `*r` which is behind a shared reference --> $DIR/cannot-move-block-spans.rs:18:45 | LL | let y = unsafe { let mut u = 0; u += 1; *r }; - | ^^ - | | - | move occurs because `*r` has type `String`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*r` + | ^^ move occurs because `*r` has type `String`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let y = unsafe { let mut u = 0; u += 1; *r }; +LL + let y = unsafe { let mut u = 0; u += 1; r }; + | error[E0507]: cannot move out of `*r` which is behind a shared reference --> $DIR/cannot-move-block-spans.rs:19:49 | LL | let z = loop { let mut u = 0; u += 1; break *r; u += 2; }; - | ^^ - | | - | move occurs because `*r` has type `String`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*r` + | ^^ move occurs because `*r` has type `String`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let z = loop { let mut u = 0; u += 1; break *r; u += 2; }; +LL + let z = loop { let mut u = 0; u += 1; break r; u += 2; }; + | error: aborting due to 9 previous errors diff --git a/src/test/ui/nll/issue-52059-report-when-borrow-and-drop-conflict.stderr b/src/test/ui/nll/issue-52059-report-when-borrow-and-drop-conflict.stderr index c0a17a67ee2..7f9cbc3c30a 100644 --- a/src/test/ui/nll/issue-52059-report-when-borrow-and-drop-conflict.stderr +++ b/src/test/ui/nll/issue-52059-report-when-borrow-and-drop-conflict.stderr @@ -36,7 +36,11 @@ LL | let p = s.url; p | | | cannot move out of here | move occurs because `s.url` has type `&mut String`, which does not implement the `Copy` trait - | help: consider borrowing here: `&s.url` + | +help: consider borrowing here + | +LL | let p = &s.url; p + | + error: aborting due to 4 previous errors diff --git a/src/test/ui/nll/move-errors.stderr b/src/test/ui/nll/move-errors.stderr index b03fcf70bab..58b8aa31d4c 100644 --- a/src/test/ui/nll/move-errors.stderr +++ b/src/test/ui/nll/move-errors.stderr @@ -2,10 +2,13 @@ error[E0507]: cannot move out of `*a` which is behind a shared reference --> $DIR/move-errors.rs:6:13 | LL | let b = *a; - | ^^ - | | - | move occurs because `*a` has type `A`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*a` + | ^^ move occurs because `*a` has type `A`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let b = *a; +LL + let b = a; + | error[E0508]: cannot move out of type `[A; 1]`, a non-copy array --> $DIR/move-errors.rs:12:13 @@ -15,25 +18,35 @@ LL | let b = a[0]; | | | cannot move out of here | move occurs because `a[_]` has type `A`, which does not implement the `Copy` trait - | help: consider borrowing here: `&a[0]` + | +help: consider borrowing here + | +LL | let b = &a[0]; + | + error[E0507]: cannot move out of `**r` which is behind a shared reference --> $DIR/move-errors.rs:19:13 | LL | let s = **r; - | ^^^ - | | - | move occurs because `**r` has type `A`, which does not implement the `Copy` trait - | help: consider borrowing here: `&**r` + | ^^^ move occurs because `**r` has type `A`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let s = **r; +LL + let s = *r; + | error[E0507]: cannot move out of an `Rc` --> $DIR/move-errors.rs:27:13 | LL | let s = *r; - | ^^ - | | - | move occurs because value has type `A`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*r` + | ^^ move occurs because value has type `A`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let s = *r; +LL + let s = r; + | error[E0508]: cannot move out of type `[A; 1]`, a non-copy array --> $DIR/move-errors.rs:32:13 @@ -43,16 +56,26 @@ LL | let a = [A("".to_string())][0]; | | | cannot move out of here | move occurs because value has type `A`, which does not implement the `Copy` trait - | help: consider borrowing here: `&[A("".to_string())][0]` + | +help: consider borrowing here + | +LL | let a = &[A("".to_string())][0]; + | + error[E0507]: cannot move out of `a` which is behind a shared reference --> $DIR/move-errors.rs:38:16 | LL | let A(s) = *a; - | - ^^ help: consider borrowing here: `&*a` + | - ^^ | | | data moved here | move occurs because `s` has type `String`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let A(s) = *a; +LL + let A(s) = a; + | error[E0509]: cannot move out of type `D`, which implements the `Drop` trait --> $DIR/move-errors.rs:44:19 @@ -62,6 +85,11 @@ LL | let C(D(s)) = c; | | | data moved here | move occurs because `s` has type `String`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | let C(D(ref s)) = c; + | +++ error[E0507]: cannot move out of `*a` which is behind a shared reference --> $DIR/move-errors.rs:51:9 @@ -73,10 +101,7 @@ error[E0508]: cannot move out of type `[B; 1]`, a non-copy array --> $DIR/move-errors.rs:74:11 | LL | match x[0] { - | ^^^^ - | | - | cannot move out of here - | help: consider borrowing here: `&x[0]` + | ^^^^ cannot move out of here LL | LL | B::U(d) => (), | - data moved here @@ -84,6 +109,10 @@ LL | B::V(s) => (), | - ...and here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider borrowing here + | +LL | match &x[0] { + | + error[E0509]: cannot move out of type `D`, which implements the `Drop` trait --> $DIR/move-errors.rs:83:11 @@ -96,6 +125,11 @@ LL | B::U(D(s)) => (), | | | data moved here | move occurs because `s` has type `String`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | B::U(D(ref s)) => (), + | +++ error[E0509]: cannot move out of type `D`, which implements the `Drop` trait --> $DIR/move-errors.rs:92:11 @@ -108,6 +142,11 @@ LL | (D(s), &t) => (), | | | data moved here | move occurs because `s` has type `String`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | (D(ref s), &t) => (), + | +++ error[E0507]: cannot move out of `*x.1` which is behind a shared reference --> $DIR/move-errors.rs:92:11 @@ -120,6 +159,11 @@ LL | (D(s), &t) => (), | | | data moved here | move occurs because `t` has type `String`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | (D(s), &ref t) => (), + | +++ error[E0509]: cannot move out of type `F`, which implements the `Drop` trait --> $DIR/move-errors.rs:102:11 @@ -133,18 +177,32 @@ LL | F(s, mut t) => (), | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider borrowing the pattern binding + | +LL | F(ref s, mut t) => (), + | +++ +help: consider borrowing the pattern binding + | +LL | F(s, ref mut t) => (), + | +++ error[E0507]: cannot move out of `x` as enum variant `Err` which is behind a shared reference --> $DIR/move-errors.rs:110:11 | LL | match *x { - | ^^ help: consider borrowing here: `&*x` + | ^^ LL | LL | Ok(s) | Err(s) => (), | - | | | data moved here | move occurs because `s` has type `String`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - match *x { +LL + match x { + | error: aborting due to 14 previous errors diff --git a/src/test/ui/no-capture-arc.stderr b/src/test/ui/no-capture-arc.stderr index 9ae41e78c22..296e1fb3f26 100644 --- a/src/test/ui/no-capture-arc.stderr +++ b/src/test/ui/no-capture-arc.stderr @@ -13,11 +13,6 @@ LL | assert_eq!((*arc_v)[2], 3); | ^^^^^^^^ value borrowed here after move | = note: borrow occurs due to deref coercion to `Vec<i32>` -note: deref defined here - --> $SRC_DIR/alloc/src/sync.rs:LL:COL - | -LL | type Target = T; - | ^^^^^^^^^^^ error: aborting due to previous error diff --git a/src/test/ui/no-reuse-move-arc.stderr b/src/test/ui/no-reuse-move-arc.stderr index 564b0585474..bcd481c33f3 100644 --- a/src/test/ui/no-reuse-move-arc.stderr +++ b/src/test/ui/no-reuse-move-arc.stderr @@ -13,11 +13,6 @@ LL | assert_eq!((*arc_v)[2], 3); | ^^^^^^^^ value borrowed here after move | = note: borrow occurs due to deref coercion to `Vec<i32>` -note: deref defined here - --> $SRC_DIR/alloc/src/sync.rs:LL:COL - | -LL | type Target = T; - | ^^^^^^^^^^^ error: aborting due to previous error diff --git a/src/test/ui/no-send-res-ports.stderr b/src/test/ui/no-send-res-ports.stderr index c864b93dbbb..75561f4119a 100644 --- a/src/test/ui/no-send-res-ports.stderr +++ b/src/test/ui/no-send-res-ports.stderr @@ -31,9 +31,6 @@ LL | thread::spawn(move|| { | ^^^^^^ note: required by a bound in `spawn` --> $SRC_DIR/std/src/thread/mod.rs:LL:COL - | -LL | F: Send + 'static, - | ^^^^ required by this bound in `spawn` error: aborting due to previous error diff --git a/src/test/ui/not-clone-closure.stderr b/src/test/ui/not-clone-closure.stderr index f61ee661bb7..37d94cf0ebd 100644 --- a/src/test/ui/not-clone-closure.stderr +++ b/src/test/ui/not-clone-closure.stderr @@ -1,13 +1,11 @@ error[E0277]: the trait bound `S: Clone` is not satisfied in `[closure@$DIR/not-clone-closure.rs:7:17: 7:24]` - --> $DIR/not-clone-closure.rs:11:17 + --> $DIR/not-clone-closure.rs:11:23 | LL | let hello = move || { | ------- within this `[closure@$DIR/not-clone-closure.rs:7:17: 7:24]` ... LL | let hello = hello.clone(); - | ^^^^^ ----- required by a bound introduced by this call - | | - | within `[closure@$DIR/not-clone-closure.rs:7:17: 7:24]`, the trait `Clone` is not implemented for `S` + | ^^^^^ within `[closure@$DIR/not-clone-closure.rs:7:17: 7:24]`, the trait `Clone` is not implemented for `S` | note: required because it's used within this closure --> $DIR/not-clone-closure.rs:7:17 diff --git a/src/test/ui/numeric/uppercase-base-prefix-invalid-no-fix.rs b/src/test/ui/numeric/uppercase-base-prefix-invalid-no-fix.rs new file mode 100644 index 00000000000..f00cde4a74c --- /dev/null +++ b/src/test/ui/numeric/uppercase-base-prefix-invalid-no-fix.rs @@ -0,0 +1,34 @@ +// Checks that integers with seeming uppercase base prefixes do not get bogus capitalization +// suggestions. + +fn main() { + _ = 123X1a3; + //~^ ERROR invalid suffix `X1a3` for number literal + //~| NOTE invalid suffix `X1a3` + //~| HELP the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) + + _ = 456O123; + //~^ ERROR invalid suffix `O123` for number literal + //~| NOTE invalid suffix `O123` + //~| HELP the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) + + _ = 789B101; + //~^ ERROR invalid suffix `B101` for number literal + //~| NOTE invalid suffix `B101` + //~| HELP the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) + + _ = 0XYZ; + //~^ ERROR invalid suffix `XYZ` for number literal + //~| NOTE invalid suffix `XYZ` + //~| HELP the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) + + _ = 0OPQ; + //~^ ERROR invalid suffix `OPQ` for number literal + //~| NOTE invalid suffix `OPQ` + //~| HELP the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) + + _ = 0BCD; + //~^ ERROR invalid suffix `BCD` for number literal + //~| NOTE invalid suffix `BCD` + //~| HELP the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) +} diff --git a/src/test/ui/numeric/uppercase-base-prefix-invalid-no-fix.stderr b/src/test/ui/numeric/uppercase-base-prefix-invalid-no-fix.stderr new file mode 100644 index 00000000000..380c16ca789 --- /dev/null +++ b/src/test/ui/numeric/uppercase-base-prefix-invalid-no-fix.stderr @@ -0,0 +1,50 @@ +error: invalid suffix `X1a3` for number literal + --> $DIR/uppercase-base-prefix-invalid-no-fix.rs:5:9 + | +LL | _ = 123X1a3; + | ^^^^^^^ invalid suffix `X1a3` + | + = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) + +error: invalid suffix `O123` for number literal + --> $DIR/uppercase-base-prefix-invalid-no-fix.rs:10:9 + | +LL | _ = 456O123; + | ^^^^^^^ invalid suffix `O123` + | + = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) + +error: invalid suffix `B101` for number literal + --> $DIR/uppercase-base-prefix-invalid-no-fix.rs:15:9 + | +LL | _ = 789B101; + | ^^^^^^^ invalid suffix `B101` + | + = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) + +error: invalid suffix `XYZ` for number literal + --> $DIR/uppercase-base-prefix-invalid-no-fix.rs:20:9 + | +LL | _ = 0XYZ; + | ^^^^ invalid suffix `XYZ` + | + = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) + +error: invalid suffix `OPQ` for number literal + --> $DIR/uppercase-base-prefix-invalid-no-fix.rs:25:9 + | +LL | _ = 0OPQ; + | ^^^^ invalid suffix `OPQ` + | + = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) + +error: invalid suffix `BCD` for number literal + --> $DIR/uppercase-base-prefix-invalid-no-fix.rs:30:9 + | +LL | _ = 0BCD; + | ^^^^ invalid suffix `BCD` + | + = help: the suffix must be one of the numeric types (`u32`, `isize`, `f32`, etc.) + +error: aborting due to 6 previous errors + diff --git a/src/test/ui/on-unimplemented/sum.stderr b/src/test/ui/on-unimplemented/sum.stderr index c3103671178..2a316dba778 100644 --- a/src/test/ui/on-unimplemented/sum.stderr +++ b/src/test/ui/on-unimplemented/sum.stderr @@ -1,38 +1,42 @@ error[E0277]: a value of type `i32` cannot be made by summing an iterator over elements of type `&()` - --> $DIR/sum.rs:4:5 + --> $DIR/sum.rs:4:25 | LL | vec![(), ()].iter().sum::<i32>(); - | ^^^^^^^^^^^^^^^^^^^ --- required by a bound introduced by this call - | | - | value of type `i32` cannot be made by summing a `std::iter::Iterator<Item=&()>` + | ^^^ value of type `i32` cannot be made by summing a `std::iter::Iterator<Item=&()>` | = help: the trait `Sum<&()>` is not implemented for `i32` = help: the following other types implement trait `Sum<A>`: <i32 as Sum<&'a i32>> <i32 as Sum> +note: the method call chain might not have had the expected associated types + --> $DIR/sum.rs:4:18 + | +LL | vec![(), ()].iter().sum::<i32>(); + | ------------ ^^^^^^ `Iterator::Item` is `&()` here + | | + | this expression has type `Vec<()>` note: required by a bound in `std::iter::Iterator::sum` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | S: Sum<Self::Item>, - | ^^^^^^^^^^^^^^^ required by this bound in `Iterator::sum` error[E0277]: a value of type `i32` cannot be made by multiplying all elements of type `&()` from an iterator - --> $DIR/sum.rs:7:5 + --> $DIR/sum.rs:7:25 | LL | vec![(), ()].iter().product::<i32>(); - | ^^^^^^^^^^^^^^^^^^^ ------- required by a bound introduced by this call - | | - | value of type `i32` cannot be made by multiplying all elements from a `std::iter::Iterator<Item=&()>` + | ^^^^^^^ value of type `i32` cannot be made by multiplying all elements from a `std::iter::Iterator<Item=&()>` | = help: the trait `Product<&()>` is not implemented for `i32` = help: the following other types implement trait `Product<A>`: <i32 as Product<&'a i32>> <i32 as Product> +note: the method call chain might not have had the expected associated types + --> $DIR/sum.rs:7:18 + | +LL | vec![(), ()].iter().product::<i32>(); + | ------------ ^^^^^^ `Iterator::Item` is `&()` here + | | + | this expression has type `Vec<()>` note: required by a bound in `std::iter::Iterator::product` --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | P: Product<Self::Item>, - | ^^^^^^^^^^^^^^^^^^^ required by this bound in `Iterator::product` error: aborting due to 2 previous errors diff --git a/src/test/ui/or-patterns/or-patterns-syntactic-fail.stderr b/src/test/ui/or-patterns/or-patterns-syntactic-fail.stderr index 920720a4f53..10d42b7e3c0 100644 --- a/src/test/ui/or-patterns/or-patterns-syntactic-fail.stderr +++ b/src/test/ui/or-patterns/or-patterns-syntactic-fail.stderr @@ -35,11 +35,8 @@ note: an implementation of `BitOr<_>` might be missing for `E` | LL | enum E { A, B } | ^^^^^^ must implement `BitOr<_>` -note: the following trait must be implemented +note: the trait `BitOr` must be implemented --> $SRC_DIR/core/src/ops/bit.rs:LL:COL - | -LL | pub trait BitOr<Rhs = Self> { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to 5 previous errors diff --git a/src/test/ui/overloaded/overloaded-calls-nontuple.stderr b/src/test/ui/overloaded/overloaded-calls-nontuple.stderr index 794535aeb11..2e160078259 100644 --- a/src/test/ui/overloaded/overloaded-calls-nontuple.stderr +++ b/src/test/ui/overloaded/overloaded-calls-nontuple.stderr @@ -6,9 +6,6 @@ LL | impl FnMut<isize> for S { | note: required by a bound in `FnMut` --> $SRC_DIR/core/src/ops/function.rs:LL:COL - | -LL | pub trait FnMut<Args: Tuple>: FnOnce<Args> { - | ^^^^^ required by this bound in `FnMut` error[E0059]: type parameter to bare `FnOnce` trait must be a tuple --> $DIR/overloaded-calls-nontuple.rs:18:6 @@ -18,9 +15,6 @@ LL | impl FnOnce<isize> for S { | note: required by a bound in `FnOnce` --> $SRC_DIR/core/src/ops/function.rs:LL:COL - | -LL | pub trait FnOnce<Args: Tuple> { - | ^^^^^ required by this bound in `FnOnce` error[E0277]: functions with the "rust-call" ABI must take a single non-self tuple argument --> $DIR/overloaded-calls-nontuple.rs:12:5 diff --git a/src/test/ui/parser/increment-autofix-2.fixed b/src/test/ui/parser/increment-autofix-2.fixed new file mode 100644 index 00000000000..580ebaf5dbb --- /dev/null +++ b/src/test/ui/parser/increment-autofix-2.fixed @@ -0,0 +1,63 @@ +// run-rustfix + +struct Foo { + bar: Bar, +} + +struct Bar { + qux: i32, +} + +pub fn post_regular() { + let mut i = 0; + i += 1; //~ ERROR Rust has no postfix increment operator + println!("{}", i); +} + +pub fn post_while() { + let mut i = 0; + while { let tmp = i; i += 1; tmp } < 5 { + //~^ ERROR Rust has no postfix increment operator + println!("{}", i); + } +} + +pub fn post_regular_tmp() { + let mut tmp = 0; + tmp += 1; //~ ERROR Rust has no postfix increment operator + println!("{}", tmp); +} + +pub fn post_while_tmp() { + let mut tmp = 0; + while { let tmp_ = tmp; tmp += 1; tmp_ } < 5 { + //~^ ERROR Rust has no postfix increment operator + println!("{}", tmp); + } +} + +pub fn post_field() { + let mut foo = Foo { bar: Bar { qux: 0 } }; + foo.bar.qux += 1; + //~^ ERROR Rust has no postfix increment operator + println!("{}", foo.bar.qux); +} + +pub fn post_field_tmp() { + struct S { + tmp: i32 + } + let mut s = S { tmp: 0 }; + s.tmp += 1; + //~^ ERROR Rust has no postfix increment operator + println!("{}", s.tmp); +} + +pub fn pre_field() { + let mut foo = Foo { bar: Bar { qux: 0 } }; + foo.bar.qux += 1; + //~^ ERROR Rust has no prefix increment operator + println!("{}", foo.bar.qux); +} + +fn main() {} diff --git a/src/test/ui/parser/increment-notfixed.rs b/src/test/ui/parser/increment-autofix-2.rs index 15f159e53d2..ebe5fa6ca1e 100644 --- a/src/test/ui/parser/increment-notfixed.rs +++ b/src/test/ui/parser/increment-autofix-2.rs @@ -1,3 +1,5 @@ +// run-rustfix + struct Foo { bar: Bar, } @@ -35,7 +37,7 @@ pub fn post_while_tmp() { } pub fn post_field() { - let foo = Foo { bar: Bar { qux: 0 } }; + let mut foo = Foo { bar: Bar { qux: 0 } }; foo.bar.qux++; //~^ ERROR Rust has no postfix increment operator println!("{}", foo.bar.qux); @@ -45,14 +47,14 @@ pub fn post_field_tmp() { struct S { tmp: i32 } - let s = S { tmp: 0 }; + let mut s = S { tmp: 0 }; s.tmp++; //~^ ERROR Rust has no postfix increment operator println!("{}", s.tmp); } pub fn pre_field() { - let foo = Foo { bar: Bar { qux: 0 } }; + let mut foo = Foo { bar: Bar { qux: 0 } }; ++foo.bar.qux; //~^ ERROR Rust has no prefix increment operator println!("{}", foo.bar.qux); diff --git a/src/test/ui/parser/increment-notfixed.stderr b/src/test/ui/parser/increment-autofix-2.stderr index ae55ae06714..11e985480d6 100644 --- a/src/test/ui/parser/increment-notfixed.stderr +++ b/src/test/ui/parser/increment-autofix-2.stderr @@ -1,18 +1,16 @@ error: Rust has no postfix increment operator - --> $DIR/increment-notfixed.rs:11:6 + --> $DIR/increment-autofix-2.rs:13:6 | LL | i++; | ^^ not a valid postfix operator | help: use `+= 1` instead | -LL | { let tmp = i; i += 1; tmp }; - | +++++++++++ ~~~~~~~~~~~~~~~ LL | i += 1; | ~~~~ error: Rust has no postfix increment operator - --> $DIR/increment-notfixed.rs:17:12 + --> $DIR/increment-autofix-2.rs:19:12 | LL | while i++ < 5 { | ----- ^^ not a valid postfix operator @@ -23,24 +21,20 @@ help: use `+= 1` instead | LL | while { let tmp = i; i += 1; tmp } < 5 { | +++++++++++ ~~~~~~~~~~~~~~~ -LL | while i += 1 < 5 { - | ~~~~ error: Rust has no postfix increment operator - --> $DIR/increment-notfixed.rs:25:8 + --> $DIR/increment-autofix-2.rs:27:8 | LL | tmp++; | ^^ not a valid postfix operator | help: use `+= 1` instead | -LL | { let tmp_ = tmp; tmp += 1; tmp_ }; - | ++++++++++++ ~~~~~~~~~~~~~~~~~~ LL | tmp += 1; | ~~~~ error: Rust has no postfix increment operator - --> $DIR/increment-notfixed.rs:31:14 + --> $DIR/increment-autofix-2.rs:33:14 | LL | while tmp++ < 5 { | ----- ^^ not a valid postfix operator @@ -51,37 +45,31 @@ help: use `+= 1` instead | LL | while { let tmp_ = tmp; tmp += 1; tmp_ } < 5 { | ++++++++++++ ~~~~~~~~~~~~~~~~~~ -LL | while tmp += 1 < 5 { - | ~~~~ error: Rust has no postfix increment operator - --> $DIR/increment-notfixed.rs:39:16 + --> $DIR/increment-autofix-2.rs:41:16 | LL | foo.bar.qux++; | ^^ not a valid postfix operator | help: use `+= 1` instead | -LL | { let tmp = foo.bar.qux; foo.bar.qux += 1; tmp }; - | +++++++++++ ~~~~~~~~~~~~~~~~~~~~~~~~~ LL | foo.bar.qux += 1; | ~~~~ error: Rust has no postfix increment operator - --> $DIR/increment-notfixed.rs:49:10 + --> $DIR/increment-autofix-2.rs:51:10 | LL | s.tmp++; | ^^ not a valid postfix operator | help: use `+= 1` instead | -LL | { let tmp = s.tmp; s.tmp += 1; tmp }; - | +++++++++++ ~~~~~~~~~~~~~~~~~~~ LL | s.tmp += 1; | ~~~~ error: Rust has no prefix increment operator - --> $DIR/increment-notfixed.rs:56:5 + --> $DIR/increment-autofix-2.rs:58:5 | LL | ++foo.bar.qux; | ^^ not a valid prefix operator diff --git a/src/test/ui/parser/issue-104867-inc-dec-2.rs b/src/test/ui/parser/issue-104867-inc-dec-2.rs new file mode 100644 index 00000000000..a006421a975 --- /dev/null +++ b/src/test/ui/parser/issue-104867-inc-dec-2.rs @@ -0,0 +1,52 @@ +fn test1() { + let mut i = 0; + let _ = i + ++i; //~ ERROR Rust has no prefix increment operator +} + +fn test2() { + let mut i = 0; + let _ = ++i + i; //~ ERROR Rust has no prefix increment operator +} + +fn test3() { + let mut i = 0; + let _ = ++i + ++i; //~ ERROR Rust has no prefix increment operator +} + +fn test4() { + let mut i = 0; + let _ = i + i++; //~ ERROR Rust has no postfix increment operator + // won't suggest since we can not handle the precedences +} + +fn test5() { + let mut i = 0; + let _ = i++ + i; //~ ERROR Rust has no postfix increment operator +} + +fn test6() { + let mut i = 0; + let _ = i++ + i++; //~ ERROR Rust has no postfix increment operator +} + +fn test7() { + let mut i = 0; + let _ = ++i + i++; //~ ERROR Rust has no prefix increment operator +} + +fn test8() { + let mut i = 0; + let _ = i++ + ++i; //~ ERROR Rust has no postfix increment operator +} + +fn test9() { + let mut i = 0; + let _ = (1 + 2 + i)++; //~ ERROR Rust has no postfix increment operator +} + +fn test10() { + let mut i = 0; + let _ = (i++ + 1) + 2; //~ ERROR Rust has no postfix increment operator +} + +fn main() { } diff --git a/src/test/ui/parser/issue-104867-inc-dec-2.stderr b/src/test/ui/parser/issue-104867-inc-dec-2.stderr new file mode 100644 index 00000000000..4e2d0546851 --- /dev/null +++ b/src/test/ui/parser/issue-104867-inc-dec-2.stderr @@ -0,0 +1,107 @@ +error: Rust has no prefix increment operator + --> $DIR/issue-104867-inc-dec-2.rs:3:17 + | +LL | let _ = i + ++i; + | ^^ not a valid prefix operator + | +help: use `+= 1` instead + | +LL | let _ = i + { i += 1; i }; + | ~ +++++++++ + +error: Rust has no prefix increment operator + --> $DIR/issue-104867-inc-dec-2.rs:8:13 + | +LL | let _ = ++i + i; + | ^^ not a valid prefix operator + | +help: use `+= 1` instead + | +LL | let _ = { i += 1; i } + i; + | ~ +++++++++ + +error: Rust has no prefix increment operator + --> $DIR/issue-104867-inc-dec-2.rs:13:13 + | +LL | let _ = ++i + ++i; + | ^^ not a valid prefix operator + | +help: use `+= 1` instead + | +LL | let _ = { i += 1; i } + ++i; + | ~ +++++++++ + +error: Rust has no postfix increment operator + --> $DIR/issue-104867-inc-dec-2.rs:18:18 + | +LL | let _ = i + i++; + | ^^ not a valid postfix operator + +error: Rust has no postfix increment operator + --> $DIR/issue-104867-inc-dec-2.rs:24:14 + | +LL | let _ = i++ + i; + | ^^ not a valid postfix operator + | +help: use `+= 1` instead + | +LL | let _ = { let tmp = i; i += 1; tmp } + i; + | +++++++++++ ~~~~~~~~~~~~~~~ + +error: Rust has no postfix increment operator + --> $DIR/issue-104867-inc-dec-2.rs:29:14 + | +LL | let _ = i++ + i++; + | ^^ not a valid postfix operator + | +help: use `+= 1` instead + | +LL | let _ = { let tmp = i; i += 1; tmp } + i++; + | +++++++++++ ~~~~~~~~~~~~~~~ + +error: Rust has no prefix increment operator + --> $DIR/issue-104867-inc-dec-2.rs:34:13 + | +LL | let _ = ++i + i++; + | ^^ not a valid prefix operator + | +help: use `+= 1` instead + | +LL | let _ = { i += 1; i } + i++; + | ~ +++++++++ + +error: Rust has no postfix increment operator + --> $DIR/issue-104867-inc-dec-2.rs:39:14 + | +LL | let _ = i++ + ++i; + | ^^ not a valid postfix operator + | +help: use `+= 1` instead + | +LL | let _ = { let tmp = i; i += 1; tmp } + ++i; + | +++++++++++ ~~~~~~~~~~~~~~~ + +error: Rust has no postfix increment operator + --> $DIR/issue-104867-inc-dec-2.rs:44:24 + | +LL | let _ = (1 + 2 + i)++; + | ^^ not a valid postfix operator + | +help: use `+= 1` instead + | +LL | let _ = { let tmp = (1 + 2 + i); (1 + 2 + i) += 1; tmp }; + | +++++++++++ ~~~~~~~~~~~~~~~~~~~~~~~~~ + +error: Rust has no postfix increment operator + --> $DIR/issue-104867-inc-dec-2.rs:49:15 + | +LL | let _ = (i++ + 1) + 2; + | ^^ not a valid postfix operator + | +help: use `+= 1` instead + | +LL | let _ = ({ let tmp = i; i += 1; tmp } + 1) + 2; + | +++++++++++ ~~~~~~~~~~~~~~~ + +error: aborting due to 10 previous errors + diff --git a/src/test/ui/parser/issue-104867-inc-dec.rs b/src/test/ui/parser/issue-104867-inc-dec.rs new file mode 100644 index 00000000000..760c67b4bed --- /dev/null +++ b/src/test/ui/parser/issue-104867-inc-dec.rs @@ -0,0 +1,45 @@ +struct S { + x: i32, +} + +fn test1() { + let mut i = 0; + i++; //~ ERROR Rust has no postfix increment operator +} + +fn test2() { + let s = S { x: 0 }; + s.x++; //~ ERROR Rust has no postfix increment operator +} + +fn test3() { + let mut i = 0; + if i++ == 1 {} //~ ERROR Rust has no postfix increment operator +} + +fn test4() { + let mut i = 0; + ++i; //~ ERROR Rust has no prefix increment operator +} + +fn test5() { + let mut i = 0; + if ++i == 1 { } //~ ERROR Rust has no prefix increment operator +} + +fn test6() { + let mut i = 0; + loop { break; } + i++; //~ ERROR Rust has no postfix increment operator + loop { break; } + ++i; +} + +fn test7() { + let mut i = 0; + loop { break; } + ++i; //~ ERROR Rust has no prefix increment operator +} + + +fn main() {} diff --git a/src/test/ui/parser/issue-104867-inc-dec.stderr b/src/test/ui/parser/issue-104867-inc-dec.stderr new file mode 100644 index 00000000000..78bfd3e82f0 --- /dev/null +++ b/src/test/ui/parser/issue-104867-inc-dec.stderr @@ -0,0 +1,81 @@ +error: Rust has no postfix increment operator + --> $DIR/issue-104867-inc-dec.rs:7:6 + | +LL | i++; + | ^^ not a valid postfix operator + | +help: use `+= 1` instead + | +LL | i += 1; + | ~~~~ + +error: Rust has no postfix increment operator + --> $DIR/issue-104867-inc-dec.rs:12:8 + | +LL | s.x++; + | ^^ not a valid postfix operator + | +help: use `+= 1` instead + | +LL | s.x += 1; + | ~~~~ + +error: Rust has no postfix increment operator + --> $DIR/issue-104867-inc-dec.rs:17:9 + | +LL | if i++ == 1 {} + | ^^ not a valid postfix operator + | +help: use `+= 1` instead + | +LL | if { let tmp = i; i += 1; tmp } == 1 {} + | +++++++++++ ~~~~~~~~~~~~~~~ + +error: Rust has no prefix increment operator + --> $DIR/issue-104867-inc-dec.rs:22:5 + | +LL | ++i; + | ^^ not a valid prefix operator + | +help: use `+= 1` instead + | +LL - ++i; +LL + i += 1; + | + +error: Rust has no prefix increment operator + --> $DIR/issue-104867-inc-dec.rs:27:8 + | +LL | if ++i == 1 { } + | ^^ not a valid prefix operator + | +help: use `+= 1` instead + | +LL | if { i += 1; i } == 1 { } + | ~ +++++++++ + +error: Rust has no postfix increment operator + --> $DIR/issue-104867-inc-dec.rs:33:6 + | +LL | i++; + | ^^ not a valid postfix operator + | +help: use `+= 1` instead + | +LL | i += 1; + | ~~~~ + +error: Rust has no prefix increment operator + --> $DIR/issue-104867-inc-dec.rs:41:5 + | +LL | ++i; + | ^^ not a valid prefix operator + | +help: use `+= 1` instead + | +LL - ++i; +LL + i += 1; + | + +error: aborting due to 7 previous errors + diff --git a/src/test/ui/parser/issue-105366.fixed b/src/test/ui/parser/issue-105366.fixed new file mode 100644 index 00000000000..ad26643c327 --- /dev/null +++ b/src/test/ui/parser/issue-105366.fixed @@ -0,0 +1,12 @@ +// run-rustfix + +struct Foo; + +impl From<i32> for Foo { + //~^ ERROR you might have meant to write `impl` instead of `fn` + fn from(_a: i32) -> Self { + Foo + } +} + +fn main() {} diff --git a/src/test/ui/parser/issue-105366.rs b/src/test/ui/parser/issue-105366.rs new file mode 100644 index 00000000000..311b6a60f1a --- /dev/null +++ b/src/test/ui/parser/issue-105366.rs @@ -0,0 +1,12 @@ +// run-rustfix + +struct Foo; + +fn From<i32> for Foo { + //~^ ERROR you might have meant to write `impl` instead of `fn` + fn from(_a: i32) -> Self { + Foo + } +} + +fn main() {} diff --git a/src/test/ui/parser/issue-105366.stderr b/src/test/ui/parser/issue-105366.stderr new file mode 100644 index 00000000000..0a7408e2c17 --- /dev/null +++ b/src/test/ui/parser/issue-105366.stderr @@ -0,0 +1,13 @@ +error: you might have meant to write `impl` instead of `fn` + --> $DIR/issue-105366.rs:5:1 + | +LL | fn From<i32> for Foo { + | ^^ + | +help: replace `fn` with `impl` here + | +LL | impl From<i32> for Foo { + | ~~~~ + +error: aborting due to previous error + diff --git a/src/test/ui/parser/issues/issue-62894.stderr b/src/test/ui/parser/issues/issue-62894.stderr index ae89926914e..07a203bf416 100644 --- a/src/test/ui/parser/issues/issue-62894.stderr +++ b/src/test/ui/parser/issues/issue-62894.stderr @@ -42,11 +42,9 @@ LL | fn f() { assert_eq!(f(), (), assert_eq!(assert_eq! LL | LL | fn main() {} | ^^ unexpected token + --> $SRC_DIR/core/src/macros/mod.rs:LL:COL | - ::: $SRC_DIR/core/src/macros/mod.rs:LL:COL - | -LL | ($left:expr, $right:expr $(,)?) => { - | ---------- while parsing argument for this `expr` macro fragment + = note: while parsing argument for this `expr` macro fragment error: aborting due to 4 previous errors diff --git a/src/test/ui/parser/kw-in-trait-bounds.stderr b/src/test/ui/parser/kw-in-trait-bounds.stderr index 546ad84eeee..79643660e8b 100644 --- a/src/test/ui/parser/kw-in-trait-bounds.stderr +++ b/src/test/ui/parser/kw-in-trait-bounds.stderr @@ -91,44 +91,36 @@ error[E0405]: cannot find trait `r#fn` in this scope | LL | fn _f<F: fn(), G>(_: impl fn(), _: &dyn fn()) | ^^ help: a trait with a similar name exists (notice the capitalization): `Fn` + --> $SRC_DIR/core/src/ops/function.rs:LL:COL | - ::: $SRC_DIR/core/src/ops/function.rs:LL:COL - | -LL | pub trait Fn<Args: Tuple>: FnMut<Args> { - | -------------------------------------- similarly named trait `Fn` defined here + = note: similarly named trait `Fn` defined here error[E0405]: cannot find trait `r#fn` in this scope --> $DIR/kw-in-trait-bounds.rs:17:4 | LL | G: fn(), | ^^ help: a trait with a similar name exists (notice the capitalization): `Fn` + --> $SRC_DIR/core/src/ops/function.rs:LL:COL | - ::: $SRC_DIR/core/src/ops/function.rs:LL:COL - | -LL | pub trait Fn<Args: Tuple>: FnMut<Args> { - | -------------------------------------- similarly named trait `Fn` defined here + = note: similarly named trait `Fn` defined here error[E0405]: cannot find trait `r#fn` in this scope --> $DIR/kw-in-trait-bounds.rs:3:27 | LL | fn _f<F: fn(), G>(_: impl fn(), _: &dyn fn()) | ^^ help: a trait with a similar name exists (notice the capitalization): `Fn` + --> $SRC_DIR/core/src/ops/function.rs:LL:COL | - ::: $SRC_DIR/core/src/ops/function.rs:LL:COL - | -LL | pub trait Fn<Args: Tuple>: FnMut<Args> { - | -------------------------------------- similarly named trait `Fn` defined here + = note: similarly named trait `Fn` defined here error[E0405]: cannot find trait `r#fn` in this scope --> $DIR/kw-in-trait-bounds.rs:3:41 | LL | fn _f<F: fn(), G>(_: impl fn(), _: &dyn fn()) | ^^ help: a trait with a similar name exists (notice the capitalization): `Fn` + --> $SRC_DIR/core/src/ops/function.rs:LL:COL | - ::: $SRC_DIR/core/src/ops/function.rs:LL:COL - | -LL | pub trait Fn<Args: Tuple>: FnMut<Args> { - | -------------------------------------- similarly named trait `Fn` defined here + = note: similarly named trait `Fn` defined here error[E0405]: cannot find trait `r#struct` in this scope --> $DIR/kw-in-trait-bounds.rs:24:10 diff --git a/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes-fixable.fixed b/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes-fixable.fixed new file mode 100644 index 00000000000..5f04fc83d37 --- /dev/null +++ b/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes-fixable.fixed @@ -0,0 +1,12 @@ +// run-rustfix +#![allow(unused_variables)] +fn main() { + struct U; + + // A tuple is a "non-reference pattern". + // A `mut` binding pattern resets the binding mode to by-value. + + let mut p = (U, U); + let (a, ref mut b) = &mut p; + //~^ ERROR cannot move out of a mutable reference +} diff --git a/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes-fixable.rs b/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes-fixable.rs new file mode 100644 index 00000000000..5dc1ae2feb5 --- /dev/null +++ b/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes-fixable.rs @@ -0,0 +1,12 @@ +// run-rustfix +#![allow(unused_variables)] +fn main() { + struct U; + + // A tuple is a "non-reference pattern". + // A `mut` binding pattern resets the binding mode to by-value. + + let mut p = (U, U); + let (a, mut b) = &mut p; + //~^ ERROR cannot move out of a mutable reference +} diff --git a/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes-fixable.stderr b/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes-fixable.stderr new file mode 100644 index 00000000000..d3ab533e35e --- /dev/null +++ b/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes-fixable.stderr @@ -0,0 +1,17 @@ +error[E0507]: cannot move out of a mutable reference + --> $DIR/move-ref-patterns-default-binding-modes-fixable.rs:10:22 + | +LL | let (a, mut b) = &mut p; + | ----- ^^^^^^ + | | + | data moved here + | move occurs because `b` has type `U`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | let (a, ref mut b) = &mut p; + | +++ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0507`. diff --git a/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes.rs b/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes.rs index 1dd66aad57a..6c913c24513 100644 --- a/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes.rs +++ b/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes.rs @@ -7,8 +7,4 @@ fn main() { let p = (U, U); let (a, mut b) = &p; //~^ ERROR cannot move out of a shared reference - - let mut p = (U, U); - let (a, mut b) = &mut p; - //~^ ERROR cannot move out of a mutable reference } diff --git a/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes.stderr b/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes.stderr index 6952c743a30..65030b62250 100644 --- a/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes.stderr +++ b/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes.stderr @@ -6,16 +6,12 @@ LL | let (a, mut b) = &p; | | | data moved here | move occurs because `b` has type `U`, which does not implement the `Copy` trait - -error[E0507]: cannot move out of a mutable reference - --> $DIR/move-ref-patterns-default-binding-modes.rs:12:22 | -LL | let (a, mut b) = &mut p; - | ----- ^^^^^^ - | | - | data moved here - | move occurs because `b` has type `U`, which does not implement the `Copy` trait +help: consider borrowing the pattern binding + | +LL | let (a, ref mut b) = &p; + | +++ -error: aborting due to 2 previous errors +error: aborting due to previous error For more information about this error, try `rustc --explain E0507`. diff --git a/src/test/ui/pattern/pat-tuple-bad-type.stderr b/src/test/ui/pattern/pat-tuple-bad-type.stderr index 3342b8e4002..da369d33397 100644 --- a/src/test/ui/pattern/pat-tuple-bad-type.stderr +++ b/src/test/ui/pattern/pat-tuple-bad-type.stderr @@ -9,8 +9,8 @@ LL | (..) => {} | help: consider giving `x` an explicit type | -LL | let x: _; - | +++ +LL | let x: /* Type */; + | ++++++++++++ error[E0308]: mismatched types --> $DIR/pat-tuple-bad-type.rs:10:9 diff --git a/src/test/ui/pattern/rest-pat-semantic-disallowed.stderr b/src/test/ui/pattern/rest-pat-semantic-disallowed.stderr index e6a4e5f19b7..beba7def96f 100644 --- a/src/test/ui/pattern/rest-pat-semantic-disallowed.stderr +++ b/src/test/ui/pattern/rest-pat-semantic-disallowed.stderr @@ -193,8 +193,8 @@ LL | let x @ ..; | help: consider giving this pattern a type | -LL | let x @ ..: _; - | +++ +LL | let x @ ..: /* Type */; + | ++++++++++++ error: aborting due to 23 previous errors diff --git a/src/test/ui/pattern/suggest-adding-appropriate-missing-pattern-excluding-comments.stderr b/src/test/ui/pattern/suggest-adding-appropriate-missing-pattern-excluding-comments.stderr index f3dca9bcb07..2a016048f2f 100644 --- a/src/test/ui/pattern/suggest-adding-appropriate-missing-pattern-excluding-comments.stderr +++ b/src/test/ui/pattern/suggest-adding-appropriate-missing-pattern-excluding-comments.stderr @@ -6,12 +6,9 @@ LL | match Some(1) { | note: `Option<i32>` defined here --> $SRC_DIR/core/src/option.rs:LL:COL + ::: $SRC_DIR/core/src/option.rs:LL:COL | -LL | pub enum Option<T> { - | ------------------ -... -LL | None, - | ^^^^ not covered + = note: not covered = note: the matched value is of type `Option<i32>` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown | diff --git a/src/test/ui/pattern/usefulness/doc-hidden-non-exhaustive.stderr b/src/test/ui/pattern/usefulness/doc-hidden-non-exhaustive.stderr index b450a9aeddf..17e1a2304a1 100644 --- a/src/test/ui/pattern/usefulness/doc-hidden-non-exhaustive.stderr +++ b/src/test/ui/pattern/usefulness/doc-hidden-non-exhaustive.stderr @@ -66,12 +66,9 @@ LL | match None { | note: `Option<HiddenEnum>` defined here --> $SRC_DIR/core/src/option.rs:LL:COL + ::: $SRC_DIR/core/src/option.rs:LL:COL | -LL | pub enum Option<T> { - | ------------------ -... -LL | Some(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^^^ not covered + = note: not covered = note: the matched value is of type `Option<HiddenEnum>` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern, a match arm with multiple or-patterns as shown, or multiple match arms | diff --git a/src/test/ui/pattern/usefulness/issue-35609.stderr b/src/test/ui/pattern/usefulness/issue-35609.stderr index c9781d52e6d..12113957d63 100644 --- a/src/test/ui/pattern/usefulness/issue-35609.stderr +++ b/src/test/ui/pattern/usefulness/issue-35609.stderr @@ -107,9 +107,6 @@ LL | match Some(A) { | note: `Option<Enum>` defined here --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | pub enum Option<T> { - | ^^^^^^^^^^^^^^^^^^ = note: the matched value is of type `Option<Enum>` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown, or multiple match arms | diff --git a/src/test/ui/pattern/usefulness/issue-3601.stderr b/src/test/ui/pattern/usefulness/issue-3601.stderr index eb8c63919b6..59d7bcd4b5e 100644 --- a/src/test/ui/pattern/usefulness/issue-3601.stderr +++ b/src/test/ui/pattern/usefulness/issue-3601.stderr @@ -6,12 +6,6 @@ LL | box NodeKind::Element(ed) => match ed.kind { | note: `Box<ElementKind>` defined here --> $SRC_DIR/alloc/src/boxed.rs:LL:COL - | -LL | / pub struct Box< -LL | | T: ?Sized, -LL | | #[unstable(feature = "allocator_api", issue = "32838")] A: Allocator = Global, -LL | | >(Unique<T>, A); - | |_^ = note: the matched value is of type `Box<ElementKind>` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown | diff --git a/src/test/ui/pattern/usefulness/match-arm-statics-2.stderr b/src/test/ui/pattern/usefulness/match-arm-statics-2.stderr index b0d7fe5eb68..e4dd35a5995 100644 --- a/src/test/ui/pattern/usefulness/match-arm-statics-2.stderr +++ b/src/test/ui/pattern/usefulness/match-arm-statics-2.stderr @@ -19,15 +19,11 @@ LL | match Some(Some(North)) { | note: `Option<Option<Direction>>` defined here --> $SRC_DIR/core/src/option.rs:LL:COL + ::: $SRC_DIR/core/src/option.rs:LL:COL | -LL | pub enum Option<T> { - | ------------------ -... -LL | Some(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^^^ - | | - | not covered - | not covered + = note: not covered + | + = note: not covered = note: the matched value is of type `Option<Option<Direction>>` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown | diff --git a/src/test/ui/pattern/usefulness/match-privately-empty.stderr b/src/test/ui/pattern/usefulness/match-privately-empty.stderr index 4607cfaae17..86f75d15cfd 100644 --- a/src/test/ui/pattern/usefulness/match-privately-empty.stderr +++ b/src/test/ui/pattern/usefulness/match-privately-empty.stderr @@ -6,12 +6,9 @@ LL | match private::DATA { | note: `Option<Private>` defined here --> $SRC_DIR/core/src/option.rs:LL:COL + ::: $SRC_DIR/core/src/option.rs:LL:COL | -LL | pub enum Option<T> { - | ------------------ -... -LL | Some(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^^^ not covered + = note: not covered = note: the matched value is of type `Option<Private>` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown | diff --git a/src/test/ui/pattern/usefulness/non-exhaustive-match.stderr b/src/test/ui/pattern/usefulness/non-exhaustive-match.stderr index 4234600d0d0..e2260f50bfe 100644 --- a/src/test/ui/pattern/usefulness/non-exhaustive-match.stderr +++ b/src/test/ui/pattern/usefulness/non-exhaustive-match.stderr @@ -36,12 +36,9 @@ LL | match Some(10) { | note: `Option<i32>` defined here --> $SRC_DIR/core/src/option.rs:LL:COL + ::: $SRC_DIR/core/src/option.rs:LL:COL | -LL | pub enum Option<T> { - | ------------------ -... -LL | Some(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^^^ not covered + = note: not covered = note: the matched value is of type `Option<i32>` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown | diff --git a/src/test/ui/print_type_sizes/async.rs b/src/test/ui/print_type_sizes/async.rs index 3491ad5afbc..1598b069691 100644 --- a/src/test/ui/print_type_sizes/async.rs +++ b/src/test/ui/print_type_sizes/async.rs @@ -1,19 +1,11 @@ -// compile-flags: -Z print-type-sizes +// compile-flags: -Z print-type-sizes --crate-type lib // edition:2021 // build-pass // ignore-pass -#![feature(start)] - async fn wait() {} -async fn test(arg: [u8; 8192]) { +pub async fn test(arg: [u8; 8192]) { wait().await; drop(arg); } - -#[start] -fn start(_: isize, _: *const *const u8) -> isize { - let _ = test([0; 8192]); - 0 -} diff --git a/src/test/ui/print_type_sizes/async.stdout b/src/test/ui/print_type_sizes/async.stdout index 94ad09ef296..6e47bb4930d 100644 --- a/src/test/ui/print_type_sizes/async.stdout +++ b/src/test/ui/print_type_sizes/async.stdout @@ -1,4 +1,4 @@ -print-type-size type: `[async fn body@$DIR/async.rs:10:32: 13:2]`: 16386 bytes, alignment: 1 bytes +print-type-size type: `[async fn body@$DIR/async.rs:8:36: 11:2]`: 16386 bytes, alignment: 1 bytes print-type-size discriminant: 1 bytes print-type-size variant `Suspend0`: 16385 bytes print-type-size field `.arg`: 8192 bytes, offset: 0 bytes, alignment: 1 bytes @@ -16,14 +16,14 @@ print-type-size type: `std::mem::MaybeUninit<[u8; 8192]>`: 8192 bytes, alignment print-type-size variant `MaybeUninit`: 8192 bytes print-type-size field `.uninit`: 0 bytes print-type-size field `.value`: 8192 bytes -print-type-size type: `[async fn body@$DIR/async.rs:8:17: 8:19]`: 1 bytes, alignment: 1 bytes +print-type-size type: `[async fn body@$DIR/async.rs:6:17: 6:19]`: 1 bytes, alignment: 1 bytes print-type-size discriminant: 1 bytes print-type-size variant `Unresumed`: 0 bytes print-type-size variant `Returned`: 0 bytes print-type-size variant `Panicked`: 0 bytes -print-type-size type: `std::mem::ManuallyDrop<[async fn body@$DIR/async.rs:8:17: 8:19]>`: 1 bytes, alignment: 1 bytes +print-type-size type: `std::mem::ManuallyDrop<[async fn body@$DIR/async.rs:6:17: 6:19]>`: 1 bytes, alignment: 1 bytes print-type-size field `.value`: 1 bytes -print-type-size type: `std::mem::MaybeUninit<[async fn body@$DIR/async.rs:8:17: 8:19]>`: 1 bytes, alignment: 1 bytes +print-type-size type: `std::mem::MaybeUninit<[async fn body@$DIR/async.rs:6:17: 6:19]>`: 1 bytes, alignment: 1 bytes print-type-size variant `MaybeUninit`: 1 bytes print-type-size field `.uninit`: 0 bytes print-type-size field `.value`: 1 bytes diff --git a/src/test/ui/print_type_sizes/generator.rs b/src/test/ui/print_type_sizes/generator.rs index a46db612104..d1cd36274ef 100644 --- a/src/test/ui/print_type_sizes/generator.rs +++ b/src/test/ui/print_type_sizes/generator.rs @@ -1,8 +1,8 @@ -// compile-flags: -Z print-type-sizes +// compile-flags: -Z print-type-sizes --crate-type=lib // build-pass // ignore-pass -#![feature(start, generators, generator_trait)] +#![feature(generators, generator_trait)] use std::ops::Generator; @@ -13,8 +13,6 @@ fn generator<const C: usize>(array: [u8; C]) -> impl Generator<Yield = (), Retur } } -#[start] -fn start(_: isize, _: *const *const u8) -> isize { +pub fn foo() { let _ = generator([0; 8192]); - 0 } diff --git a/src/test/ui/print_type_sizes/generator_discr_placement.rs b/src/test/ui/print_type_sizes/generator_discr_placement.rs new file mode 100644 index 00000000000..1a85fe95bb6 --- /dev/null +++ b/src/test/ui/print_type_sizes/generator_discr_placement.rs @@ -0,0 +1,23 @@ +// compile-flags: -Z print-type-sizes --crate-type lib +// build-pass +// ignore-pass + +// Tests a generator that has its discriminant as the *final* field. + +// Avoid emitting panic handlers, like the rest of these tests... +#![feature(generators)] + +pub fn foo() { + let a = || { + { + let w: i32 = 4; + yield; + drop(w); + } + { + let z: i32 = 7; + yield; + drop(z); + } + }; +} diff --git a/src/test/ui/print_type_sizes/generator_discr_placement.stdout b/src/test/ui/print_type_sizes/generator_discr_placement.stdout new file mode 100644 index 00000000000..7f8f4ccae7c --- /dev/null +++ b/src/test/ui/print_type_sizes/generator_discr_placement.stdout @@ -0,0 +1,11 @@ +print-type-size type: `[generator@$DIR/generator_discr_placement.rs:11:13: 11:15]`: 8 bytes, alignment: 4 bytes +print-type-size discriminant: 1 bytes +print-type-size variant `Suspend0`: 7 bytes +print-type-size padding: 3 bytes +print-type-size field `.w`: 4 bytes, alignment: 4 bytes +print-type-size variant `Suspend1`: 7 bytes +print-type-size padding: 3 bytes +print-type-size field `.z`: 4 bytes, alignment: 4 bytes +print-type-size variant `Unresumed`: 0 bytes +print-type-size variant `Returned`: 0 bytes +print-type-size variant `Panicked`: 0 bytes diff --git a/src/test/ui/print_type_sizes/generics.rs b/src/test/ui/print_type_sizes/generics.rs index 3ef7b60db2c..05097087d5a 100644 --- a/src/test/ui/print_type_sizes/generics.rs +++ b/src/test/ui/print_type_sizes/generics.rs @@ -1,4 +1,4 @@ -// compile-flags: -Z print-type-sizes +// compile-flags: -Z print-type-sizes --crate-type=lib // build-pass // ignore-pass // ^-- needed because `--pass check` does not emit the output needed. @@ -8,24 +8,6 @@ // monomorphized, in the MIR of the original function in which they // occur, to have their size reported. -#![feature(start)] - -// In an ad-hoc attempt to avoid the injection of unwinding code -// (which clutters the output of `-Z print-type-sizes` with types from -// `unwind::libunwind`): -// -// * I am not using Default to build values because that seems to -// cause the injection of unwinding code. (Instead I just make `fn new` -// methods.) -// -// * Pair derive Copy to ensure that we don't inject -// unwinding code into generic uses of Pair when T itself is also -// Copy. -// -// (I suspect this reflect some naivety within the rust compiler -// itself; it should be checking for drop glue, i.e., a destructor -// somewhere in the monomorphized types. It should not matter whether -// the type is Copy.) #[derive(Copy, Clone)] pub struct Pair<T> { _car: T, @@ -61,11 +43,9 @@ pub fn f1<T:Copy>(x: T) { Pair::new(FiftyBytes::new(), FiftyBytes::new()); } -#[start] -fn start(_: isize, _: *const *const u8) -> isize { +pub fn start() { let _b: Pair<u8> = Pair::new(0, 0); let _s: Pair<SevenBytes> = Pair::new(SevenBytes::new(), SevenBytes::new()); let ref _z: ZeroSized = ZeroSized; f1::<SevenBytes>(SevenBytes::new()); - 0 } diff --git a/src/test/ui/print_type_sizes/multiple_types.rs b/src/test/ui/print_type_sizes/multiple_types.rs index f1ad27ec131..91590389247 100644 --- a/src/test/ui/print_type_sizes/multiple_types.rs +++ b/src/test/ui/print_type_sizes/multiple_types.rs @@ -1,11 +1,9 @@ -// compile-flags: -Z print-type-sizes +// compile-flags: -Z print-type-sizes --crate-type=lib // build-pass // This file illustrates that when multiple structural types occur in // a function, every one of them is included in the output. -#![feature(start)] - pub struct SevenBytes([u8; 7]); pub struct FiftyBytes([u8; 50]); @@ -13,11 +11,3 @@ pub enum Enum { Small(SevenBytes), Large(FiftyBytes), } - -#[start] -fn start(_: isize, _: *const *const u8) -> isize { - let _e: Enum; - let _f: FiftyBytes; - let _s: SevenBytes; - 0 -} diff --git a/src/test/ui/print_type_sizes/niche-filling.rs b/src/test/ui/print_type_sizes/niche-filling.rs index 0716cee21c6..5e620f248b6 100644 --- a/src/test/ui/print_type_sizes/niche-filling.rs +++ b/src/test/ui/print_type_sizes/niche-filling.rs @@ -1,4 +1,4 @@ -// compile-flags: -Z print-type-sizes +// compile-flags: -Z print-type-sizes --crate-type=lib // build-pass // ignore-pass // ^-- needed because `--pass check` does not emit the output needed. @@ -14,7 +14,6 @@ // aligned (while on most it is 8-byte aligned) and so the resulting // padding and overall computed sizes can be quite different. -#![feature(start)] #![feature(rustc_attrs)] #![allow(dead_code)] @@ -56,7 +55,7 @@ pub struct NestedNonZero { impl Default for NestedNonZero { fn default() -> Self { - NestedNonZero { pre: 0, val: NonZeroU32::new(1).unwrap(), post: 0 } + NestedNonZero { pre: 0, val: unsafe { NonZeroU32::new_unchecked(1) }, post: 0 } } } @@ -76,8 +75,7 @@ pub union Union2<A: Copy, B: Copy> { b: B, } -#[start] -fn start(_: isize, _: *const *const u8) -> isize { +pub fn test() { let _x: MyOption<NonZeroU32> = Default::default(); let _y: EmbeddedDiscr = Default::default(); let _z: MyOption<IndirectNonZero> = Default::default(); @@ -96,6 +94,4 @@ fn start(_: isize, _: *const *const u8) -> isize { // ...even when theoretically possible. let _j: MyOption<Union1<NonZeroU32>> = Default::default(); let _k: MyOption<Union2<NonZeroU32, NonZeroU32>> = Default::default(); - - 0 } diff --git a/src/test/ui/print_type_sizes/no_duplicates.rs b/src/test/ui/print_type_sizes/no_duplicates.rs index e45e4794a35..2ec5d9e64bf 100644 --- a/src/test/ui/print_type_sizes/no_duplicates.rs +++ b/src/test/ui/print_type_sizes/no_duplicates.rs @@ -1,4 +1,4 @@ -// compile-flags: -Z print-type-sizes +// compile-flags: -Z print-type-sizes --crate-type=lib // build-pass // ignore-pass // ^-- needed because `--pass check` does not emit the output needed. @@ -8,16 +8,12 @@ // (even if multiple functions), it is only printed once in the // print-type-sizes output. -#![feature(start)] - pub struct SevenBytes([u8; 7]); pub fn f1() { let _s: SevenBytes = SevenBytes([0; 7]); } -#[start] -fn start(_: isize, _: *const *const u8) -> isize { +pub fn test() { let _s: SevenBytes = SevenBytes([0; 7]); - 0 } diff --git a/src/test/ui/print_type_sizes/packed.rs b/src/test/ui/print_type_sizes/packed.rs index 269cc3cc282..5ddfe4bf4db 100644 --- a/src/test/ui/print_type_sizes/packed.rs +++ b/src/test/ui/print_type_sizes/packed.rs @@ -1,4 +1,4 @@ -// compile-flags: -Z print-type-sizes +// compile-flags: -Z print-type-sizes --crate-type=lib // build-pass // ignore-pass // ^-- needed because `--pass check` does not emit the output needed. @@ -13,11 +13,10 @@ // padding and overall computed sizes can be quite different. #![allow(dead_code)] -#![feature(start)] #[derive(Default)] #[repr(packed)] -struct Packed1 { +pub struct Packed1 { a: u8, b: u8, g: i32, @@ -28,7 +27,7 @@ struct Packed1 { #[derive(Default)] #[repr(packed(2))] -struct Packed2 { +pub struct Packed2 { a: u8, b: u8, g: i32, @@ -40,7 +39,7 @@ struct Packed2 { #[derive(Default)] #[repr(packed(2))] #[repr(C)] -struct Packed2C { +pub struct Packed2C { a: u8, b: u8, g: i32, @@ -50,7 +49,7 @@ struct Packed2C { } #[derive(Default)] -struct Padded { +pub struct Padded { a: u8, b: u8, g: i32, @@ -58,12 +57,3 @@ struct Padded { h: i16, d: u8, } - -#[start] -fn start(_: isize, _: *const *const u8) -> isize { - let _c: Packed1 = Default::default(); - let _d: Packed2 = Default::default(); - let _e: Packed2C = Default::default(); - let _f: Padded = Default::default(); - 0 -} diff --git a/src/test/ui/print_type_sizes/padding.rs b/src/test/ui/print_type_sizes/padding.rs index d1acad16d7e..f41c677dc6c 100644 --- a/src/test/ui/print_type_sizes/padding.rs +++ b/src/test/ui/print_type_sizes/padding.rs @@ -1,4 +1,4 @@ -// compile-flags: -Z print-type-sizes +// compile-flags: -Z print-type-sizes --crate-type=lib // build-pass // This file illustrates how padding is handled: alignment @@ -9,7 +9,6 @@ // aligned (while on most it is 8-byte aligned) and so the resulting // padding and overall computed sizes can be quite different. -#![feature(start)] #![allow(dead_code)] struct S { @@ -27,8 +26,3 @@ enum E2 { A(i8, i32), B(S), } - -#[start] -fn start(_: isize, _: *const *const u8) -> isize { - 0 -} diff --git a/src/test/ui/print_type_sizes/repr-align.rs b/src/test/ui/print_type_sizes/repr-align.rs index 07544935b2f..0bd11ebc958 100644 --- a/src/test/ui/print_type_sizes/repr-align.rs +++ b/src/test/ui/print_type_sizes/repr-align.rs @@ -1,4 +1,4 @@ -// compile-flags: -Z print-type-sizes +// compile-flags: -Z print-type-sizes --crate-type=lib // build-pass // ignore-pass // ^-- needed because `--pass check` does not emit the output needed. @@ -11,7 +11,7 @@ // It avoids using u64/i64 because on some targets that is only 4-byte // aligned (while on most it is 8-byte aligned) and so the resulting // padding and overall computed sizes can be quite different. -#![feature(start)] + #![allow(dead_code)] #[repr(align(16))] @@ -24,15 +24,9 @@ enum E { } #[derive(Default)] -struct S { +pub struct S { a: i32, b: i32, c: A, d: i8, } - -#[start] -fn start(_: isize, _: *const *const u8) -> isize { - let _s: S = Default::default(); - 0 -} diff --git a/src/test/ui/print_type_sizes/repr_int_c.rs b/src/test/ui/print_type_sizes/repr_int_c.rs index b8067c112ee..6b103776a30 100644 --- a/src/test/ui/print_type_sizes/repr_int_c.rs +++ b/src/test/ui/print_type_sizes/repr_int_c.rs @@ -1,10 +1,9 @@ -// compile-flags: -Z print-type-sizes +// compile-flags: -Z print-type-sizes --crate-type=lib // build-pass // This test makes sure that the tag is not grown for `repr(C)` or `repr(u8)` // variants (see https://github.com/rust-lang/rust/issues/50098 for the original bug). -#![feature(start)] #![allow(dead_code)] #[repr(C, u8)] @@ -18,8 +17,3 @@ enum Repru8 { A(u16), B, } - -#[start] -fn start(_: isize, _: *const *const u8) -> isize { - 0 -} diff --git a/src/test/ui/print_type_sizes/uninhabited.rs b/src/test/ui/print_type_sizes/uninhabited.rs index 06a62db4ebb..86fab7b500a 100644 --- a/src/test/ui/print_type_sizes/uninhabited.rs +++ b/src/test/ui/print_type_sizes/uninhabited.rs @@ -1,14 +1,12 @@ -// compile-flags: -Z print-type-sizes +// compile-flags: -Z print-type-sizes --crate-type=lib // build-pass // ignore-pass // ^-- needed because `--pass check` does not emit the output needed. // FIXME: consider using an attribute instead of side-effects. #![feature(never_type)] -#![feature(start)] -#[start] -fn start(_: isize, _: *const *const u8) -> isize { +pub fn test() { let _x: Option<!> = None; let _y: Result<u32, !> = Ok(42); let _z: Result<!, !> = loop {}; diff --git a/src/test/ui/print_type_sizes/variants.rs b/src/test/ui/print_type_sizes/variants.rs index 6c8553cc23d..5a302052026 100644 --- a/src/test/ui/print_type_sizes/variants.rs +++ b/src/test/ui/print_type_sizes/variants.rs @@ -1,4 +1,4 @@ -// compile-flags: -Z print-type-sizes +// compile-flags: -Z print-type-sizes --crate-type=lib // build-pass // This file illustrates two things: @@ -9,8 +9,6 @@ // 2. For an enum, the print-type-sizes output will also include the // size of each variant. -#![feature(start)] - pub struct SevenBytes([u8; 7]); pub struct FiftyBytes([u8; 50]); @@ -18,9 +16,3 @@ pub enum Enum { Small(SevenBytes), Large(FiftyBytes), } - -#[start] -fn start(_: isize, _: *const *const u8) -> isize { - let _e: Enum; - 0 -} diff --git a/src/test/ui/print_type_sizes/zero-sized-fields.rs b/src/test/ui/print_type_sizes/zero-sized-fields.rs index e02a33109e5..09415824d5d 100644 --- a/src/test/ui/print_type_sizes/zero-sized-fields.rs +++ b/src/test/ui/print_type_sizes/zero-sized-fields.rs @@ -1,12 +1,10 @@ -// compile-flags: -Z print-type-sizes +// compile-flags: -Z print-type-sizes --crate-type=lib // build-pass // ignore-pass // At one point, zero-sized fields such as those in this file were causing // incorrect output from `-Z print-type-sizes`. -#![feature(start)] - struct S1 { x: u32, y: u32, @@ -28,8 +26,7 @@ struct S5<TagW, TagZ> { tagz: TagZ, } -#[start] -fn start(_: isize, _: *const *const u8) -> isize { +pub fn test() { let _s1: S1 = S1 { x: 0, y: 0, tag: () }; let _s5: S5<(), Empty> = S5 { @@ -43,5 +40,4 @@ fn start(_: isize, _: *const *const u8) -> isize { z: 4, tagz: Empty {}, }; - 0 } diff --git a/src/test/ui/privacy/associated-item-privacy-trait.rs b/src/test/ui/privacy/associated-item-privacy-trait.rs index ad9a5e15c4e..c686a21772e 100644 --- a/src/test/ui/privacy/associated-item-privacy-trait.rs +++ b/src/test/ui/privacy/associated-item-privacy-trait.rs @@ -19,9 +19,9 @@ mod priv_trait { Pub.method(); //~^ ERROR type `for<'a> fn(&'a Self) {<Self as PrivTr>::method}` is private <Pub as PrivTr>::CONST; - //~^ ERROR associated constant `<Pub as PrivTr>::CONST` is private + //~^ ERROR associated constant `PrivTr::CONST` is private let _: <Pub as PrivTr>::AssocTy; - //~^ ERROR associated type `<Pub as PrivTr>::AssocTy` is private + //~^ ERROR associated type `PrivTr::AssocTy` is private pub type InSignatureTy = <Pub as PrivTr>::AssocTy; //~^ ERROR trait `PrivTr` is private pub trait InSignatureTr: PrivTr {} diff --git a/src/test/ui/privacy/associated-item-privacy-trait.stderr b/src/test/ui/privacy/associated-item-privacy-trait.stderr index c4be1a9d9a2..eb905bf7ef8 100644 --- a/src/test/ui/privacy/associated-item-privacy-trait.stderr +++ b/src/test/ui/privacy/associated-item-privacy-trait.stderr @@ -31,7 +31,7 @@ LL | priv_trait::mac!(); | = note: this error originates in the macro `priv_trait::mac` (in Nightly builds, run with -Z macro-backtrace for more info) -error: associated constant `<Pub as PrivTr>::CONST` is private +error: associated constant `PrivTr::CONST` is private --> $DIR/associated-item-privacy-trait.rs:21:9 | LL | <Pub as PrivTr>::CONST; @@ -42,7 +42,7 @@ LL | priv_trait::mac!(); | = note: this error originates in the macro `priv_trait::mac` (in Nightly builds, run with -Z macro-backtrace for more info) -error: associated type `<Pub as PrivTr>::AssocTy` is private +error: associated type `PrivTr::AssocTy` is private --> $DIR/associated-item-privacy-trait.rs:23:16 | LL | let _: <Pub as PrivTr>::AssocTy; diff --git a/src/test/ui/privacy/private-inferred-type-3.rs b/src/test/ui/privacy/private-inferred-type-3.rs index 0337aedd008..cdbdcf60b2c 100644 --- a/src/test/ui/privacy/private-inferred-type-3.rs +++ b/src/test/ui/privacy/private-inferred-type-3.rs @@ -1,7 +1,7 @@ // aux-build:private-inferred-type.rs // error-pattern:type `fn() {ext::priv_fn}` is private -// error-pattern:static `PRIV_STATIC` is private +// error-pattern:static `ext::PRIV_STATIC` is private // error-pattern:type `ext::PrivEnum` is private // error-pattern:type `fn() {<u8 as ext::PrivTrait>::method}` is private // error-pattern:type `fn(u8) -> ext::PrivTupleStruct {ext::PrivTupleStruct}` is private diff --git a/src/test/ui/privacy/private-inferred-type-3.stderr b/src/test/ui/privacy/private-inferred-type-3.stderr index 00b61512de6..42faeb4bf34 100644 --- a/src/test/ui/privacy/private-inferred-type-3.stderr +++ b/src/test/ui/privacy/private-inferred-type-3.stderr @@ -6,7 +6,7 @@ LL | ext::m!(); | = note: this error originates in the macro `ext::m` (in Nightly builds, run with -Z macro-backtrace for more info) -error: static `PRIV_STATIC` is private +error: static `ext::PRIV_STATIC` is private --> $DIR/private-inferred-type-3.rs:16:5 | LL | ext::m!(); diff --git a/src/test/ui/proc-macro/issue-104884-trait-impl-sugg-err.stderr b/src/test/ui/proc-macro/issue-104884-trait-impl-sugg-err.stderr index ac49e04e3c0..14e5df21ef6 100644 --- a/src/test/ui/proc-macro/issue-104884-trait-impl-sugg-err.stderr +++ b/src/test/ui/proc-macro/issue-104884-trait-impl-sugg-err.stderr @@ -7,9 +7,6 @@ LL | #[derive(PartialOrd, AddImpl)] = help: the trait `PartialEq` is not implemented for `PriorityQueue<T>` note: required by a bound in `PartialOrd` --> $SRC_DIR/core/src/cmp.rs:LL:COL - | -LL | pub trait PartialOrd<Rhs: ?Sized = Self>: PartialEq<Rhs> { - | ^^^^^^^^^^^^^^ required by this bound in `PartialOrd` = note: this error originates in the derive macro `PartialOrd` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0277]: the trait bound `PriorityQueue<T>: Eq` is not satisfied @@ -20,9 +17,6 @@ LL | #[derive(PartialOrd, AddImpl)] | note: required by a bound in `Ord` --> $SRC_DIR/core/src/cmp.rs:LL:COL - | -LL | pub trait Ord: Eq + PartialOrd<Self> { - | ^^ required by this bound in `Ord` = note: this error originates in the derive macro `AddImpl` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0277]: can't compare `T` with `T` @@ -38,9 +32,6 @@ LL | #[derive(PartialOrd, AddImpl)] | ^^^^^^^^^^ note: required by a bound in `Ord` --> $SRC_DIR/core/src/cmp.rs:LL:COL - | -LL | pub trait Ord: Eq + PartialOrd<Self> { - | ^^^^^^^^^^^^^^^^ required by this bound in `Ord` = note: this error originates in the derive macro `AddImpl` which comes from the expansion of the derive macro `PartialOrd` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to 3 previous errors diff --git a/src/test/ui/proc-macro/parent-source-spans.stderr b/src/test/ui/proc-macro/parent-source-spans.stderr index 65ce24e5522..a3b27fd7bcc 100644 --- a/src/test/ui/proc-macro/parent-source-spans.stderr +++ b/src/test/ui/proc-macro/parent-source-spans.stderr @@ -144,11 +144,9 @@ LL | parent_source_spans!($($tokens)*); ... LL | one!("hello", "world"); | ---------------------- in this macro invocation + --> $SRC_DIR/core/src/result.rs:LL:COL | - ::: $SRC_DIR/core/src/result.rs:LL:COL - | -LL | Ok(#[stable(feature = "rust1", since = "1.0.0")] T), - | -- similarly named tuple variant `Ok` defined here + = note: similarly named tuple variant `Ok` defined here | = note: this error originates in the macro `parent_source_spans` which comes from the expansion of the macro `one` (in Nightly builds, run with -Z macro-backtrace for more info) @@ -160,11 +158,9 @@ LL | parent_source_spans!($($tokens)*); ... LL | two!("yay", "rust"); | ------------------- in this macro invocation + --> $SRC_DIR/core/src/result.rs:LL:COL | - ::: $SRC_DIR/core/src/result.rs:LL:COL - | -LL | Ok(#[stable(feature = "rust1", since = "1.0.0")] T), - | -- similarly named tuple variant `Ok` defined here + = note: similarly named tuple variant `Ok` defined here | = note: this error originates in the macro `parent_source_spans` which comes from the expansion of the macro `two` (in Nightly builds, run with -Z macro-backtrace for more info) @@ -176,11 +172,9 @@ LL | parent_source_spans!($($tokens)*); ... LL | three!("hip", "hop"); | -------------------- in this macro invocation + --> $SRC_DIR/core/src/result.rs:LL:COL | - ::: $SRC_DIR/core/src/result.rs:LL:COL - | -LL | Ok(#[stable(feature = "rust1", since = "1.0.0")] T), - | -- similarly named tuple variant `Ok` defined here + = note: similarly named tuple variant `Ok` defined here | = note: this error originates in the macro `parent_source_spans` which comes from the expansion of the macro `three` (in Nightly builds, run with -Z macro-backtrace for more info) diff --git a/src/test/ui/proc-macro/resolve-error.stderr b/src/test/ui/proc-macro/resolve-error.stderr index a534b9d5377..3c3f24d0ff2 100644 --- a/src/test/ui/proc-macro/resolve-error.stderr +++ b/src/test/ui/proc-macro/resolve-error.stderr @@ -72,22 +72,18 @@ error: cannot find derive macro `Dlone` in this scope | LL | #[derive(Dlone)] | ^^^^^ help: a derive macro with a similar name exists: `Clone` + --> $SRC_DIR/core/src/clone.rs:LL:COL | - ::: $SRC_DIR/core/src/clone.rs:LL:COL - | -LL | pub macro Clone($item:item) { - | --------------- similarly named derive macro `Clone` defined here + = note: similarly named derive macro `Clone` defined here error: cannot find derive macro `Dlone` in this scope --> $DIR/resolve-error.rs:35:10 | LL | #[derive(Dlone)] | ^^^^^ help: a derive macro with a similar name exists: `Clone` + --> $SRC_DIR/core/src/clone.rs:LL:COL | - ::: $SRC_DIR/core/src/clone.rs:LL:COL - | -LL | pub macro Clone($item:item) { - | --------------- similarly named derive macro `Clone` defined here + = note: similarly named derive macro `Clone` defined here error: cannot find attribute `FooWithLongNan` in this scope --> $DIR/resolve-error.rs:32:3 diff --git a/src/test/ui/proc-macro/signature.stderr b/src/test/ui/proc-macro/signature.stderr index 59b3e44c74a..79f2001da00 100644 --- a/src/test/ui/proc-macro/signature.stderr +++ b/src/test/ui/proc-macro/signature.stderr @@ -14,9 +14,6 @@ LL | | } = note: unsafe function cannot be called generically without an unsafe block note: required by a bound in `ProcMacro::custom_derive` --> $SRC_DIR/proc_macro/src/bridge/client.rs:LL:COL - | -LL | expand: impl Fn(crate::TokenStream) -> crate::TokenStream + Copy, - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `ProcMacro::custom_derive` error: aborting due to previous error diff --git a/src/test/ui/proc-macro/span-api-tests.rs b/src/test/ui/proc-macro/span-api-tests.rs index 914ad54ed03..3f04ba866b7 100644 --- a/src/test/ui/proc-macro/span-api-tests.rs +++ b/src/test/ui/proc-macro/span-api-tests.rs @@ -2,6 +2,7 @@ // ignore-pretty // aux-build:span-api-tests.rs // aux-build:span-test-macros.rs +// compile-flags: -Ztranslate-remapped-path-to-local-path=yes #[macro_use] extern crate span_test_macros; diff --git a/src/test/ui/range/range-1.stderr b/src/test/ui/range/range-1.stderr index aaea91ce0cb..3956390368f 100644 --- a/src/test/ui/range/range-1.stderr +++ b/src/test/ui/range/range-1.stderr @@ -32,9 +32,6 @@ LL | let range = *arr..; = help: the trait `Sized` is not implemented for `[{integer}]` note: required by a bound in `RangeFrom` --> $SRC_DIR/core/src/ops/range.rs:LL:COL - | -LL | pub struct RangeFrom<Idx> { - | ^^^ required by this bound in `RangeFrom` error: aborting due to 3 previous errors diff --git a/src/test/ui/recursion/issue-38591-non-regular-dropck-recursion.stderr b/src/test/ui/recursion/issue-38591-non-regular-dropck-recursion.stderr index 1da29be43db..002dfe115b0 100644 --- a/src/test/ui/recursion/issue-38591-non-regular-dropck-recursion.stderr +++ b/src/test/ui/recursion/issue-38591-non-regular-dropck-recursion.stderr @@ -8,3 +8,4 @@ LL | fn f(x: S<u32>) {} error: aborting due to previous error +For more information about this error, try `rustc --explain E0320`. diff --git a/src/test/ui/recursion/recursive-types-are-not-uninhabited.stderr b/src/test/ui/recursion/recursive-types-are-not-uninhabited.stderr index f2307899d3c..86ad6aa847c 100644 --- a/src/test/ui/recursion/recursive-types-are-not-uninhabited.stderr +++ b/src/test/ui/recursion/recursive-types-are-not-uninhabited.stderr @@ -8,12 +8,9 @@ LL | let Ok(x) = res; = note: for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html note: `Result<u32, &R<'_>>` defined here --> $SRC_DIR/core/src/result.rs:LL:COL + ::: $SRC_DIR/core/src/result.rs:LL:COL | -LL | pub enum Result<T, E> { - | --------------------- -... -LL | Err(#[stable(feature = "rust1", since = "1.0.0")] E), - | ^^^ not covered + = note: not covered = note: the matched value is of type `Result<u32, &R<'_>>` help: you might want to use `if let` to ignore the variant that isn't matched | diff --git a/src/test/ui/resolve/issue-104700-inner_scope.rs b/src/test/ui/resolve/issue-104700-inner_scope.rs new file mode 100644 index 00000000000..e8f28c113e3 --- /dev/null +++ b/src/test/ui/resolve/issue-104700-inner_scope.rs @@ -0,0 +1,11 @@ +fn main() { + let foo = 1; + { + let bar = 2; + let test_func = |x| x > 3; + } + if bar == 2 { //~ ERROR cannot find value + println!("yes"); + } + test_func(1); //~ ERROR cannot find function +} diff --git a/src/test/ui/resolve/issue-104700-inner_scope.stderr b/src/test/ui/resolve/issue-104700-inner_scope.stderr new file mode 100644 index 00000000000..051b234fc72 --- /dev/null +++ b/src/test/ui/resolve/issue-104700-inner_scope.stderr @@ -0,0 +1,21 @@ +error[E0425]: cannot find value `bar` in this scope + --> $DIR/issue-104700-inner_scope.rs:7:8 + | +LL | if bar == 2 { + | ^^^ + | +help: the binding `bar` is available in a different scope in the same function + --> $DIR/issue-104700-inner_scope.rs:4:13 + | +LL | let bar = 2; + | ^^^ + +error[E0425]: cannot find function `test_func` in this scope + --> $DIR/issue-104700-inner_scope.rs:10:5 + | +LL | test_func(1); + | ^^^^^^^^^ not found in this scope + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0425`. diff --git a/src/test/ui/resolve/issue-5035-2.stderr b/src/test/ui/resolve/issue-5035-2.stderr index 939392733f0..558e6b7b118 100644 --- a/src/test/ui/resolve/issue-5035-2.stderr +++ b/src/test/ui/resolve/issue-5035-2.stderr @@ -6,6 +6,10 @@ LL | fn foo(_x: K) {} | = help: the trait `Sized` is not implemented for `(dyn I + 'static)` = help: unsized fn params are gated as an unstable feature +help: you can use `impl Trait` as the argument type + | +LL | fn foo(_x: impl K) {} + | ++++ help: function arguments must have a statically known size, borrowed types always have a known size | LL | fn foo(_x: &K) {} diff --git a/src/test/ui/resolve/issue-85348.stderr b/src/test/ui/resolve/issue-85348.stderr index f839dd927db..42b43f825d1 100644 --- a/src/test/ui/resolve/issue-85348.stderr +++ b/src/test/ui/resolve/issue-85348.stderr @@ -21,8 +21,8 @@ LL | let mut N; | help: consider giving `N` an explicit type | -LL | let mut N: _; - | +++ +LL | let mut N: /* Type */; + | ++++++++++++ error: aborting due to 3 previous errors diff --git a/src/test/ui/resolve/levenshtein.stderr b/src/test/ui/resolve/levenshtein.stderr index 9a2d61ea405..cf478210132 100644 --- a/src/test/ui/resolve/levenshtein.stderr +++ b/src/test/ui/resolve/levenshtein.stderr @@ -18,11 +18,9 @@ error[E0412]: cannot find type `Opiton` in this scope | LL | type B = Opiton<u8>; // Misspelled type name from the prelude. | ^^^^^^ help: an enum with a similar name exists: `Option` + --> $SRC_DIR/core/src/option.rs:LL:COL | - ::: $SRC_DIR/core/src/option.rs:LL:COL - | -LL | pub enum Option<T> { - | ------------------ similarly named enum `Option` defined here + = note: similarly named enum `Option` defined here error[E0412]: cannot find type `Baz` in this scope --> $DIR/levenshtein.rs:16:14 diff --git a/src/test/ui/resolve/resolve-primitive-fallback.stderr b/src/test/ui/resolve/resolve-primitive-fallback.stderr index 6d5d5bad9fe..964302e924c 100644 --- a/src/test/ui/resolve/resolve-primitive-fallback.stderr +++ b/src/test/ui/resolve/resolve-primitive-fallback.stderr @@ -28,9 +28,6 @@ LL | std::mem::size_of(u16); | note: function defined here --> $SRC_DIR/core/src/mem/mod.rs:LL:COL - | -LL | pub const fn size_of<T>() -> usize { - | ^^^^^^^ help: remove the extra argument | LL | std::mem::size_of(); diff --git a/src/test/ui/rfc-1937-termination-trait/termination-trait-test-wrong-type.stderr b/src/test/ui/rfc-1937-termination-trait/termination-trait-test-wrong-type.stderr index 9577952119a..a19750cc73a 100644 --- a/src/test/ui/rfc-1937-termination-trait/termination-trait-test-wrong-type.stderr +++ b/src/test/ui/rfc-1937-termination-trait/termination-trait-test-wrong-type.stderr @@ -9,9 +9,6 @@ LL | fn can_parse_zero_as_f32() -> Result<f32, ParseFloatError> { = note: required for `Result<f32, ParseFloatError>` to implement `Termination` note: required by a bound in `assert_test_result` --> $SRC_DIR/test/src/lib.rs:LL:COL - | -LL | pub fn assert_test_result<T: Termination>(result: T) -> Result<(), String> { - | ^^^^^^^^^^^ required by this bound in `assert_test_result` = note: this error originates in the attribute macro `test` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to previous error diff --git a/src/test/ui/rfc-2005-default-binding-mode/for.stderr b/src/test/ui/rfc-2005-default-binding-mode/for.stderr index 9cc20a7bf31..07991af6ef9 100644 --- a/src/test/ui/rfc-2005-default-binding-mode/for.stderr +++ b/src/test/ui/rfc-2005-default-binding-mode/for.stderr @@ -6,6 +6,11 @@ LL | for (n, mut m) in &tups { | | | data moved here | move occurs because `m` has type `Foo`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | for (n, ref mut m) in &tups { + | +++ error: aborting due to previous error diff --git a/src/test/ui/rfc-2361-dbg-macro/dbg-macro-move-semantics.stderr b/src/test/ui/rfc-2361-dbg-macro/dbg-macro-move-semantics.stderr index 06699b947be..e97fdcce1c1 100644 --- a/src/test/ui/rfc-2361-dbg-macro/dbg-macro-move-semantics.stderr +++ b/src/test/ui/rfc-2361-dbg-macro/dbg-macro-move-semantics.stderr @@ -8,11 +8,6 @@ LL | let _ = dbg!(a); LL | let _ = dbg!(a); | ^ value used here after move | -help: borrow this binding in the pattern to avoid moving the value - --> $SRC_DIR/std/src/macros.rs:LL:COL - | -LL | ref tmp => { - | +++ error: aborting due to previous error diff --git a/src/test/ui/rfc-2632-const-trait-impl/const-default-method-bodies.stderr b/src/test/ui/rfc-2632-const-trait-impl/const-default-method-bodies.stderr index c64930db9be..f9d0d1f7875 100644 --- a/src/test/ui/rfc-2632-const-trait-impl/const-default-method-bodies.stderr +++ b/src/test/ui/rfc-2632-const-trait-impl/const-default-method-bodies.stderr @@ -1,10 +1,8 @@ error[E0277]: the trait bound `NonConstImpl: ~const ConstDefaultFn` is not satisfied - --> $DIR/const-default-method-bodies.rs:24:5 + --> $DIR/const-default-method-bodies.rs:24:18 | LL | NonConstImpl.a(); - | ^^^^^^^^^^^^ - required by a bound introduced by this call - | | - | the trait `~const ConstDefaultFn` is not implemented for `NonConstImpl` + | ^ the trait `~const ConstDefaultFn` is not implemented for `NonConstImpl` | note: the trait `ConstDefaultFn` is implemented for `NonConstImpl`, but that implementation is not `const` --> $DIR/const-default-method-bodies.rs:24:5 diff --git a/src/test/ui/rfc-2632-const-trait-impl/const-impl-trait.rs b/src/test/ui/rfc-2632-const-trait-impl/const-impl-trait.rs new file mode 100644 index 00000000000..0622f96e70d --- /dev/null +++ b/src/test/ui/rfc-2632-const-trait-impl/const-impl-trait.rs @@ -0,0 +1,55 @@ +// check-pass +#![allow(incomplete_features)] +#![feature( + associated_type_bounds, + const_trait_impl, + const_cmp, + return_position_impl_trait_in_trait, +)] + +use std::marker::Destruct; + +const fn cmp(a: &impl ~const PartialEq) -> bool { + a == a +} + +const fn wrap(x: impl ~const PartialEq + ~const Destruct) + -> impl ~const PartialEq + ~const Destruct +{ + x +} + +#[const_trait] +trait Foo { + fn huh() -> impl ~const PartialEq + ~const Destruct + Copy; +} + +impl const Foo for () { + fn huh() -> impl ~const PartialEq + ~const Destruct + Copy { + 123 + } +} + +const _: () = { + assert!(cmp(&0xDEADBEEFu32)); + assert!(cmp(&())); + assert!(wrap(123) == wrap(123)); + assert!(wrap(123) != wrap(456)); + let x = <() as Foo>::huh(); + assert!(x == x); +}; + +#[const_trait] +trait T {} +struct S; +impl const T for S {} + +const fn rpit() -> impl ~const T { S } + +const fn apit(_: impl ~const T + ~const Destruct) {} + +const fn rpit_assoc_bound() -> impl IntoIterator<Item: ~const T> { Some(S) } + +const fn apit_assoc_bound(_: impl IntoIterator<Item: ~const T> + ~const Destruct) {} + +fn main() {} diff --git a/src/test/ui/rfc-2632-const-trait-impl/cross-crate.gatednc.stderr b/src/test/ui/rfc-2632-const-trait-impl/cross-crate.gatednc.stderr index 925ae53e324..633b7cc255a 100644 --- a/src/test/ui/rfc-2632-const-trait-impl/cross-crate.gatednc.stderr +++ b/src/test/ui/rfc-2632-const-trait-impl/cross-crate.gatednc.stderr @@ -1,10 +1,8 @@ error[E0277]: the trait bound `cross_crate::NonConst: ~const cross_crate::MyTrait` is not satisfied - --> $DIR/cross-crate.rs:17:5 + --> $DIR/cross-crate.rs:17:14 | LL | NonConst.func(); - | ^^^^^^^^ ---- required by a bound introduced by this call - | | - | the trait `~const cross_crate::MyTrait` is not implemented for `cross_crate::NonConst` + | ^^^^ the trait `~const cross_crate::MyTrait` is not implemented for `cross_crate::NonConst` | note: the trait `cross_crate::MyTrait` is implemented for `cross_crate::NonConst`, but that implementation is not `const` --> $DIR/cross-crate.rs:17:5 diff --git a/src/test/ui/rfc-2632-const-trait-impl/cross-crate.stocknc.stderr b/src/test/ui/rfc-2632-const-trait-impl/cross-crate.stocknc.stderr index 11db0c2b8f2..9e97d3f1137 100644 --- a/src/test/ui/rfc-2632-const-trait-impl/cross-crate.stocknc.stderr +++ b/src/test/ui/rfc-2632-const-trait-impl/cross-crate.stocknc.stderr @@ -1,10 +1,8 @@ error[E0277]: the trait bound `cross_crate::NonConst: cross_crate::MyTrait` is not satisfied - --> $DIR/cross-crate.rs:17:5 + --> $DIR/cross-crate.rs:17:14 | LL | NonConst.func(); - | ^^^^^^^^ ---- required by a bound introduced by this call - | | - | the trait `~const cross_crate::MyTrait` is not implemented for `cross_crate::NonConst` + | ^^^^ the trait `~const cross_crate::MyTrait` is not implemented for `cross_crate::NonConst` | note: the trait `cross_crate::MyTrait` is implemented for `cross_crate::NonConst`, but that implementation is not `const` --> $DIR/cross-crate.rs:17:5 diff --git a/src/test/ui/rfc-2632-const-trait-impl/default-method-body-is-const-same-trait-ck.stderr b/src/test/ui/rfc-2632-const-trait-impl/default-method-body-is-const-same-trait-ck.stderr index c2c16921c2e..21ecddaffbb 100644 --- a/src/test/ui/rfc-2632-const-trait-impl/default-method-body-is-const-same-trait-ck.stderr +++ b/src/test/ui/rfc-2632-const-trait-impl/default-method-body-is-const-same-trait-ck.stderr @@ -1,10 +1,8 @@ error[E0277]: the trait bound `(): ~const Tr` is not satisfied - --> $DIR/default-method-body-is-const-same-trait-ck.rs:8:9 + --> $DIR/default-method-body-is-const-same-trait-ck.rs:8:12 | LL | ().a() - | ^^ - required by a bound introduced by this call - | | - | the trait `~const Tr` is not implemented for `()` + | ^ the trait `~const Tr` is not implemented for `()` | note: the trait `Tr` is implemented for `()`, but that implementation is not `const` --> $DIR/default-method-body-is-const-same-trait-ck.rs:8:9 diff --git a/src/test/ui/rfc-2632-const-trait-impl/super-traits-fail-2.yn.stderr b/src/test/ui/rfc-2632-const-trait-impl/super-traits-fail-2.yn.stderr index b52eb2c0332..13fc719f28c 100644 --- a/src/test/ui/rfc-2632-const-trait-impl/super-traits-fail-2.yn.stderr +++ b/src/test/ui/rfc-2632-const-trait-impl/super-traits-fail-2.yn.stderr @@ -1,10 +1,8 @@ error[E0277]: the trait bound `T: ~const Foo` is not satisfied - --> $DIR/super-traits-fail-2.rs:15:5 + --> $DIR/super-traits-fail-2.rs:15:7 | LL | x.a(); - | ^ - required by a bound introduced by this call - | | - | the trait `~const Foo` is not implemented for `T` + | ^ the trait `~const Foo` is not implemented for `T` | note: the trait `Foo` is implemented for `T`, but that implementation is not `const` --> $DIR/super-traits-fail-2.rs:15:5 diff --git a/src/test/ui/rfc-2632-const-trait-impl/super-traits-fail-2.yy.stderr b/src/test/ui/rfc-2632-const-trait-impl/super-traits-fail-2.yy.stderr index b52eb2c0332..13fc719f28c 100644 --- a/src/test/ui/rfc-2632-const-trait-impl/super-traits-fail-2.yy.stderr +++ b/src/test/ui/rfc-2632-const-trait-impl/super-traits-fail-2.yy.stderr @@ -1,10 +1,8 @@ error[E0277]: the trait bound `T: ~const Foo` is not satisfied - --> $DIR/super-traits-fail-2.rs:15:5 + --> $DIR/super-traits-fail-2.rs:15:7 | LL | x.a(); - | ^ - required by a bound introduced by this call - | | - | the trait `~const Foo` is not implemented for `T` + | ^ the trait `~const Foo` is not implemented for `T` | note: the trait `Foo` is implemented for `T`, but that implementation is not `const` --> $DIR/super-traits-fail-2.rs:15:5 diff --git a/src/test/ui/rfc-2632-const-trait-impl/tilde-const-invalid-places.rs b/src/test/ui/rfc-2632-const-trait-impl/tilde-const-invalid-places.rs index 5bd52151f42..95f7aaba0fc 100644 --- a/src/test/ui/rfc-2632-const-trait-impl/tilde-const-invalid-places.rs +++ b/src/test/ui/rfc-2632-const-trait-impl/tilde-const-invalid-places.rs @@ -1,23 +1,6 @@ #![feature(const_trait_impl)] #![feature(associated_type_bounds)] -#[const_trait] -trait T {} -struct S; -impl T for S {} - -fn rpit() -> impl ~const T { S } -//~^ ERROR `~const` is not allowed - -fn apit(_: impl ~const T) {} -//~^ ERROR `~const` is not allowed - -fn rpit_assoc_bound() -> impl IntoIterator<Item: ~const T> { Some(S) } -//~^ ERROR `~const` is not allowed - -fn apit_assoc_bound(_: impl IntoIterator<Item: ~const T>) {} -//~^ ERROR `~const` is not allowed - struct TildeQuestion<T: ~const ?Sized>(std::marker::PhantomData<T>); //~^ ERROR `~const` and `?` are mutually exclusive diff --git a/src/test/ui/rfc-2632-const-trait-impl/tilde-const-invalid-places.stderr b/src/test/ui/rfc-2632-const-trait-impl/tilde-const-invalid-places.stderr index 84867cb4a53..d20f146df3f 100644 --- a/src/test/ui/rfc-2632-const-trait-impl/tilde-const-invalid-places.stderr +++ b/src/test/ui/rfc-2632-const-trait-impl/tilde-const-invalid-places.stderr @@ -1,40 +1,8 @@ -error: `~const` is not allowed here - --> $DIR/tilde-const-invalid-places.rs:9:19 - | -LL | fn rpit() -> impl ~const T { S } - | ^^^^^^^^ - | - = note: `impl Trait`s cannot have `~const` trait bounds - -error: `~const` is not allowed here - --> $DIR/tilde-const-invalid-places.rs:12:17 - | -LL | fn apit(_: impl ~const T) {} - | ^^^^^^^^ - | - = note: `impl Trait`s cannot have `~const` trait bounds - -error: `~const` is not allowed here - --> $DIR/tilde-const-invalid-places.rs:15:50 - | -LL | fn rpit_assoc_bound() -> impl IntoIterator<Item: ~const T> { Some(S) } - | ^^^^^^^^ - | - = note: `impl Trait`s cannot have `~const` trait bounds - -error: `~const` is not allowed here - --> $DIR/tilde-const-invalid-places.rs:18:48 - | -LL | fn apit_assoc_bound(_: impl IntoIterator<Item: ~const T>) {} - | ^^^^^^^^ - | - = note: `impl Trait`s cannot have `~const` trait bounds - error: `~const` and `?` are mutually exclusive - --> $DIR/tilde-const-invalid-places.rs:21:25 + --> $DIR/tilde-const-invalid-places.rs:4:25 | LL | struct TildeQuestion<T: ~const ?Sized>(std::marker::PhantomData<T>); | ^^^^^^^^^^^^^ -error: aborting due to 5 previous errors +error: aborting due to previous error diff --git a/src/test/ui/span/issue-39018.stderr b/src/test/ui/span/issue-39018.stderr index eea94643e0a..5d4d692b2cf 100644 --- a/src/test/ui/span/issue-39018.stderr +++ b/src/test/ui/span/issue-39018.stderr @@ -26,11 +26,8 @@ note: an implementation of `Add<_>` might be missing for `World` | LL | enum World { | ^^^^^^^^^^ must implement `Add<_>` -note: the following trait must be implemented +note: the trait `Add` must be implemented --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | pub trait Add<Rhs = Self> { - | ^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0369]: cannot add `String` to `&str` --> $DIR/issue-39018.rs:11:22 diff --git a/src/test/ui/span/issue-71363.rs b/src/test/ui/span/issue-71363.rs index f187d0efa84..8014f379625 100644 --- a/src/test/ui/span/issue-71363.rs +++ b/src/test/ui/span/issue-71363.rs @@ -1,4 +1,4 @@ -// compile-flags: -Z simulate-remapped-rust-src-base=/rustc/FAKE_PREFIX -Z translate-remapped-path-to-local-path=no -Z ui-testing=no +// compile-flags: -Z ui-testing=no struct MyError; impl std::error::Error for MyError {} diff --git a/src/test/ui/span/method-and-field-eager-resolution.stderr b/src/test/ui/span/method-and-field-eager-resolution.stderr index 7d240589a3f..f6efbe40bc2 100644 --- a/src/test/ui/span/method-and-field-eager-resolution.stderr +++ b/src/test/ui/span/method-and-field-eager-resolution.stderr @@ -9,8 +9,8 @@ LL | x.0; | help: consider giving `x` an explicit type | -LL | let mut x: _ = Default::default(); - | +++ +LL | let mut x: /* Type */ = Default::default(); + | ++++++++++++ error[E0282]: type annotations needed --> $DIR/method-and-field-eager-resolution.rs:11:9 @@ -23,8 +23,8 @@ LL | x[0]; | help: consider giving `x` an explicit type | -LL | let mut x: _ = Default::default(); - | +++ +LL | let mut x: /* Type */ = Default::default(); + | ++++++++++++ error: aborting due to 2 previous errors diff --git a/src/test/ui/span/missing-unit-argument.stderr b/src/test/ui/span/missing-unit-argument.stderr index b76a3ab307a..48a2e763af6 100644 --- a/src/test/ui/span/missing-unit-argument.stderr +++ b/src/test/ui/span/missing-unit-argument.stderr @@ -6,9 +6,6 @@ LL | let _: Result<(), String> = Ok(); | note: tuple variant defined here --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | Ok(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^ help: provide the argument | LL | let _: Result<(), String> = Ok(()); diff --git a/src/test/ui/specialization/defaultimpl/specialization-trait-not-implemented.stderr b/src/test/ui/specialization/defaultimpl/specialization-trait-not-implemented.stderr index 33ca7a2c210..37788612f43 100644 --- a/src/test/ui/specialization/defaultimpl/specialization-trait-not-implemented.stderr +++ b/src/test/ui/specialization/defaultimpl/specialization-trait-not-implemented.stderr @@ -27,7 +27,7 @@ LL | default impl<T> Foo for T { | ^^^^^^^^^^^^^^^^---^^^^^- | | | unsatisfied trait bound introduced here -note: the following trait must be implemented +note: the trait `Foo` must be implemented --> $DIR/specialization-trait-not-implemented.rs:7:1 | LL | trait Foo { diff --git a/src/test/ui/stability-attribute/stability-in-private-module.stderr b/src/test/ui/stability-attribute/stability-in-private-module.stderr index e64f2acbd35..2f02a24960e 100644 --- a/src/test/ui/stability-attribute/stability-in-private-module.stderr +++ b/src/test/ui/stability-attribute/stability-in-private-module.stderr @@ -6,9 +6,6 @@ LL | let _ = std::thread::thread_info::current_thread(); | note: the module `thread_info` is defined here --> $SRC_DIR/std/src/thread/mod.rs:LL:COL - | -LL | use crate::sys_common::thread_info; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to previous error diff --git a/src/test/ui/std-uncopyable-atomics.stderr b/src/test/ui/std-uncopyable-atomics.stderr index 9db9fcf40f8..8c5d0b96096 100644 --- a/src/test/ui/std-uncopyable-atomics.stderr +++ b/src/test/ui/std-uncopyable-atomics.stderr @@ -2,37 +2,49 @@ error[E0507]: cannot move out of a shared reference --> $DIR/std-uncopyable-atomics.rs:9:13 | LL | let x = *&x; - | ^^^ - | | - | move occurs because value has type `std::sync::atomic::AtomicBool`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*&x` + | ^^^ move occurs because value has type `std::sync::atomic::AtomicBool`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let x = *&x; +LL + let x = &x; + | error[E0507]: cannot move out of a shared reference --> $DIR/std-uncopyable-atomics.rs:11:13 | LL | let x = *&x; - | ^^^ - | | - | move occurs because value has type `std::sync::atomic::AtomicIsize`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*&x` + | ^^^ move occurs because value has type `std::sync::atomic::AtomicIsize`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let x = *&x; +LL + let x = &x; + | error[E0507]: cannot move out of a shared reference --> $DIR/std-uncopyable-atomics.rs:13:13 | LL | let x = *&x; - | ^^^ - | | - | move occurs because value has type `std::sync::atomic::AtomicUsize`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*&x` + | ^^^ move occurs because value has type `std::sync::atomic::AtomicUsize`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let x = *&x; +LL + let x = &x; + | error[E0507]: cannot move out of a shared reference --> $DIR/std-uncopyable-atomics.rs:15:13 | LL | let x = *&x; - | ^^^ - | | - | move occurs because value has type `std::sync::atomic::AtomicPtr<usize>`, which does not implement the `Copy` trait - | help: consider borrowing here: `&*&x` + | ^^^ move occurs because value has type `std::sync::atomic::AtomicPtr<usize>`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let x = *&x; +LL + let x = &x; + | error: aborting due to 4 previous errors diff --git a/src/test/ui/str/str-idx.stderr b/src/test/ui/str/str-idx.stderr index 019305def29..cb1a6fcacfc 100644 --- a/src/test/ui/str/str-idx.stderr +++ b/src/test/ui/str/str-idx.stderr @@ -24,9 +24,6 @@ LL | let _ = s.get(4); = help: the trait `SliceIndex<[T]>` is implemented for `usize` note: required by a bound in `core::str::<impl str>::get` --> $SRC_DIR/core/src/str/mod.rs:LL:COL - | -LL | pub const fn get<I: ~const SliceIndex<str>>(&self, i: I) -> Option<&I::Output> { - | ^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `core::str::<impl str>::get` error[E0277]: the type `str` cannot be indexed by `{integer}` --> $DIR/str-idx.rs:5:29 @@ -42,9 +39,6 @@ LL | let _ = s.get_unchecked(4); = help: the trait `SliceIndex<[T]>` is implemented for `usize` note: required by a bound in `core::str::<impl str>::get_unchecked` --> $SRC_DIR/core/src/str/mod.rs:LL:COL - | -LL | pub const unsafe fn get_unchecked<I: ~const SliceIndex<str>>(&self, i: I) -> &I::Output { - | ^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `core::str::<impl str>::get_unchecked` error[E0277]: the type `str` cannot be indexed by `char` --> $DIR/str-idx.rs:6:19 diff --git a/src/test/ui/str/str-mut-idx.stderr b/src/test/ui/str/str-mut-idx.stderr index b165c482590..ca4b86ba306 100644 --- a/src/test/ui/str/str-mut-idx.stderr +++ b/src/test/ui/str/str-mut-idx.stderr @@ -48,9 +48,6 @@ LL | s.get_mut(1); = help: the trait `SliceIndex<[T]>` is implemented for `usize` note: required by a bound in `core::str::<impl str>::get_mut` --> $SRC_DIR/core/src/str/mod.rs:LL:COL - | -LL | pub const fn get_mut<I: ~const SliceIndex<str>>(&mut self, i: I) -> Option<&mut I::Output> { - | ^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `core::str::<impl str>::get_mut` error[E0277]: the type `str` cannot be indexed by `{integer}` --> $DIR/str-mut-idx.rs:11:25 @@ -66,9 +63,6 @@ LL | s.get_unchecked_mut(1); = help: the trait `SliceIndex<[T]>` is implemented for `usize` note: required by a bound in `core::str::<impl str>::get_unchecked_mut` --> $SRC_DIR/core/src/str/mod.rs:LL:COL - | -LL | pub const unsafe fn get_unchecked_mut<I: ~const SliceIndex<str>>( - | ^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `core::str::<impl str>::get_unchecked_mut` error[E0277]: the type `str` cannot be indexed by `char` --> $DIR/str-mut-idx.rs:13:7 diff --git a/src/test/ui/suggestions/args-instead-of-tuple-errors.stderr b/src/test/ui/suggestions/args-instead-of-tuple-errors.stderr index 0a91c442d2c..44a39efdf25 100644 --- a/src/test/ui/suggestions/args-instead-of-tuple-errors.stderr +++ b/src/test/ui/suggestions/args-instead-of-tuple-errors.stderr @@ -13,9 +13,6 @@ LL | let _: Option<(i32, bool)> = Some(1, 2); found type `{integer}` note: tuple variant defined here --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | Some(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^^^ help: remove the extra argument | LL | let _: Option<(i32, bool)> = Some(/* (i32, bool) */); @@ -52,9 +49,6 @@ LL | let _: Option<(i8,)> = Some(); | note: tuple variant defined here --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | Some(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^^^ help: provide the argument | LL | let _: Option<(i8,)> = Some(/* (i8,) */); @@ -72,9 +66,6 @@ LL | let _: Option<(i32,)> = Some(5_usize); found type `usize` note: tuple variant defined here --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | Some(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^^^ error[E0308]: mismatched types --> $DIR/args-instead-of-tuple-errors.rs:17:34 @@ -88,9 +79,6 @@ LL | let _: Option<(i32,)> = Some((5_usize)); found type `usize` note: tuple variant defined here --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | Some(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^^^ error: aborting due to 5 previous errors diff --git a/src/test/ui/suggestions/args-instead-of-tuple.stderr b/src/test/ui/suggestions/args-instead-of-tuple.stderr index 20f9e5259a4..c8499010d68 100644 --- a/src/test/ui/suggestions/args-instead-of-tuple.stderr +++ b/src/test/ui/suggestions/args-instead-of-tuple.stderr @@ -6,9 +6,6 @@ LL | let _: Result<(i32, i8), ()> = Ok(1, 2); | note: tuple variant defined here --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | Ok(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^ help: wrap these arguments in parentheses to construct a tuple | LL | let _: Result<(i32, i8), ()> = Ok((1, 2)); @@ -22,9 +19,6 @@ LL | let _: Option<(i32, i8, &'static str)> = Some(1, 2, "hi"); | note: tuple variant defined here --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | Some(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^^^ help: wrap these arguments in parentheses to construct a tuple | LL | let _: Option<(i32, i8, &'static str)> = Some((1, 2, "hi")); @@ -38,9 +32,6 @@ LL | let _: Option<()> = Some(); | note: tuple variant defined here --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | Some(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^^^ help: provide the argument | LL | let _: Option<()> = Some(()); @@ -58,9 +49,6 @@ LL | let _: Option<(i32,)> = Some(3); found type `{integer}` note: tuple variant defined here --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | Some(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^^^ help: use a trailing comma to create a tuple with one element | LL | let _: Option<(i32,)> = Some((3,)); @@ -78,9 +66,6 @@ LL | let _: Option<(i32,)> = Some((3)); found type `{integer}` note: tuple variant defined here --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | Some(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^^^ help: use a trailing comma to create a tuple with one element | LL | let _: Option<(i32,)> = Some((3,)); diff --git a/src/test/ui/suggestions/as-ref-2.stderr b/src/test/ui/suggestions/as-ref-2.stderr index e15e45d86b9..e2129b4502a 100644 --- a/src/test/ui/suggestions/as-ref-2.stderr +++ b/src/test/ui/suggestions/as-ref-2.stderr @@ -10,11 +10,8 @@ LL | let _x: Option<Struct> = foo.map(|s| bar(&s)); LL | let _y = foo; | ^^^ value used here after move | -note: this function takes ownership of the receiver `self`, which moves `foo` +note: `Option::<T>::map` takes ownership of the receiver `self`, which moves `foo` --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | pub const fn map<U, F>(self, f: F) -> Option<U> - | ^^^^ error: aborting due to previous error diff --git a/src/test/ui/suggestions/attribute-typos.stderr b/src/test/ui/suggestions/attribute-typos.stderr index 54122cb7360..b871c9b45a5 100644 --- a/src/test/ui/suggestions/attribute-typos.stderr +++ b/src/test/ui/suggestions/attribute-typos.stderr @@ -15,11 +15,9 @@ error: cannot find attribute `tests` in this scope | LL | #[tests] | ^^^^^ help: an attribute macro with a similar name exists: `test` + --> $SRC_DIR/core/src/macros/mod.rs:LL:COL | - ::: $SRC_DIR/core/src/macros/mod.rs:LL:COL - | -LL | pub macro test($item:item) { - | -------------- similarly named attribute macro `test` defined here + = note: similarly named attribute macro `test` defined here error: cannot find attribute `deprcated` in this scope --> $DIR/attribute-typos.rs:1:3 diff --git a/src/test/ui/suggestions/borrow-for-loop-head.stderr b/src/test/ui/suggestions/borrow-for-loop-head.stderr index 0cc8994fe1f..cbdb94877bd 100644 --- a/src/test/ui/suggestions/borrow-for-loop-head.stderr +++ b/src/test/ui/suggestions/borrow-for-loop-head.stderr @@ -16,11 +16,8 @@ LL | for i in &a { LL | for j in a { | ^ `a` moved due to this implicit call to `.into_iter()`, in previous iteration of loop | -note: this function takes ownership of the receiver `self`, which moves `a` +note: `into_iter` takes ownership of the receiver `self`, which moves `a` --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | fn into_iter(self) -> Self::IntoIter; - | ^^^^ help: consider iterating over a slice of the `Vec<i32>`'s content to avoid moving into the `for` loop | LL | for j in &a { diff --git a/src/test/ui/suggestions/bound-suggestions.stderr b/src/test/ui/suggestions/bound-suggestions.stderr index 4cb595c32c0..cd27947f02f 100644 --- a/src/test/ui/suggestions/bound-suggestions.stderr +++ b/src/test/ui/suggestions/bound-suggestions.stderr @@ -78,9 +78,6 @@ LL | const SIZE: usize = core::mem::size_of::<Self>(); | note: required by a bound in `std::mem::size_of` --> $SRC_DIR/core/src/mem/mod.rs:LL:COL - | -LL | pub const fn size_of<T>() -> usize { - | ^ required by this bound in `size_of` help: consider further restricting `Self` | LL | trait Foo<T>: Sized { @@ -94,9 +91,6 @@ LL | const SIZE: usize = core::mem::size_of::<Self>(); | note: required by a bound in `std::mem::size_of` --> $SRC_DIR/core/src/mem/mod.rs:LL:COL - | -LL | pub const fn size_of<T>() -> usize { - | ^ required by this bound in `size_of` help: consider further restricting `Self` | LL | trait Bar: std::fmt::Display + Sized { @@ -110,9 +104,6 @@ LL | const SIZE: usize = core::mem::size_of::<Self>(); | note: required by a bound in `std::mem::size_of` --> $SRC_DIR/core/src/mem/mod.rs:LL:COL - | -LL | pub const fn size_of<T>() -> usize { - | ^ required by this bound in `size_of` help: consider further restricting `Self` | LL | trait Baz: Sized where Self: std::fmt::Display { @@ -126,9 +117,6 @@ LL | const SIZE: usize = core::mem::size_of::<Self>(); | note: required by a bound in `std::mem::size_of` --> $SRC_DIR/core/src/mem/mod.rs:LL:COL - | -LL | pub const fn size_of<T>() -> usize { - | ^ required by this bound in `size_of` help: consider further restricting `Self` | LL | trait Qux<T>: Sized where Self: std::fmt::Display { @@ -142,9 +130,6 @@ LL | const SIZE: usize = core::mem::size_of::<Self>(); | note: required by a bound in `std::mem::size_of` --> $SRC_DIR/core/src/mem/mod.rs:LL:COL - | -LL | pub const fn size_of<T>() -> usize { - | ^ required by this bound in `size_of` help: consider further restricting `Self` | LL | trait Bat<T>: std::fmt::Display + Sized { diff --git a/src/test/ui/suggestions/clone-on-unconstrained-borrowed-type-param.fixed b/src/test/ui/suggestions/clone-on-unconstrained-borrowed-type-param.fixed new file mode 100644 index 00000000000..4f9e93a47ed --- /dev/null +++ b/src/test/ui/suggestions/clone-on-unconstrained-borrowed-type-param.fixed @@ -0,0 +1,16 @@ +// run-rustfix +fn wat<T: Clone>(t: &T) -> T { + t.clone() //~ ERROR E0308 +} + +#[derive(Clone)] +struct Foo; + +fn wut(t: &Foo) -> Foo { + t.clone() //~ ERROR E0308 +} + +fn main() { + wat(&42); + wut(&Foo); +} diff --git a/src/test/ui/suggestions/clone-on-unconstrained-borrowed-type-param.rs b/src/test/ui/suggestions/clone-on-unconstrained-borrowed-type-param.rs new file mode 100644 index 00000000000..89b077d671a --- /dev/null +++ b/src/test/ui/suggestions/clone-on-unconstrained-borrowed-type-param.rs @@ -0,0 +1,15 @@ +// run-rustfix +fn wat<T>(t: &T) -> T { + t.clone() //~ ERROR E0308 +} + +struct Foo; + +fn wut(t: &Foo) -> Foo { + t.clone() //~ ERROR E0308 +} + +fn main() { + wat(&42); + wut(&Foo); +} diff --git a/src/test/ui/suggestions/clone-on-unconstrained-borrowed-type-param.stderr b/src/test/ui/suggestions/clone-on-unconstrained-borrowed-type-param.stderr new file mode 100644 index 00000000000..26ab515d9b4 --- /dev/null +++ b/src/test/ui/suggestions/clone-on-unconstrained-borrowed-type-param.stderr @@ -0,0 +1,43 @@ +error[E0308]: mismatched types + --> $DIR/clone-on-unconstrained-borrowed-type-param.rs:3:5 + | +LL | fn wat<T>(t: &T) -> T { + | - - expected `T` because of return type + | | + | this type parameter +LL | t.clone() + | ^^^^^^^^^ expected type parameter `T`, found `&T` + | + = note: expected type parameter `T` + found reference `&T` +note: `T` does not implement `Clone`, so `&T` was cloned instead + --> $DIR/clone-on-unconstrained-borrowed-type-param.rs:3:5 + | +LL | t.clone() + | ^ +help: consider restricting type parameter `T` + | +LL | fn wat<T: Clone>(t: &T) -> T { + | +++++++ + +error[E0308]: mismatched types + --> $DIR/clone-on-unconstrained-borrowed-type-param.rs:9:5 + | +LL | fn wut(t: &Foo) -> Foo { + | --- expected `Foo` because of return type +LL | t.clone() + | ^^^^^^^^^ expected struct `Foo`, found `&Foo` + | +note: `Foo` does not implement `Clone`, so `&Foo` was cloned instead + --> $DIR/clone-on-unconstrained-borrowed-type-param.rs:9:5 + | +LL | t.clone() + | ^ +help: consider annotating `Foo` with `#[derive(Clone)]` + | +LL | #[derive(Clone)] + | + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0308`. diff --git a/src/test/ui/suggestions/derive-clone-for-eq.stderr b/src/test/ui/suggestions/derive-clone-for-eq.stderr index 0645f0cdde7..0a18b770405 100644 --- a/src/test/ui/suggestions/derive-clone-for-eq.stderr +++ b/src/test/ui/suggestions/derive-clone-for-eq.stderr @@ -11,9 +11,6 @@ LL | impl<T: Clone, U> PartialEq<U> for Struct<T> | ^^^^^^^^^^^^ ^^^^^^^^^ note: required by a bound in `Eq` --> $SRC_DIR/core/src/cmp.rs:LL:COL - | -LL | pub trait Eq: PartialEq<Self> { - | ^^^^^^^^^^^^^^^ required by this bound in `Eq` = note: this error originates in the derive macro `Eq` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider restricting type parameter `T` | diff --git a/src/test/ui/suggestions/derive-trait-for-method-call.stderr b/src/test/ui/suggestions/derive-trait-for-method-call.stderr index 7cc372f2422..14e8a2675dd 100644 --- a/src/test/ui/suggestions/derive-trait-for-method-call.stderr +++ b/src/test/ui/suggestions/derive-trait-for-method-call.stderr @@ -20,11 +20,8 @@ LL | let y = x.test(); `Enum: Clone` `Enum: Default` `CloneEnum: Default` -note: the following trait must be implemented +note: the trait `Default` must be implemented --> $SRC_DIR/core/src/default.rs:LL:COL - | -LL | pub trait Default: Sized { - | ^^^^^^^^^^^^^^^^^^^^^^^^ help: consider annotating `Enum` with `#[derive(Clone)]` | LL | #[derive(Clone)] @@ -69,16 +66,12 @@ LL | struct Foo<X, Y> (X, Y); ... LL | let y = x.test(); | ^^^^ method cannot be called on `Foo<Vec<Enum>, Instant>` due to unsatisfied trait bounds + --> $SRC_DIR/std/src/time.rs:LL:COL | - ::: $SRC_DIR/std/src/time.rs:LL:COL - | -LL | pub struct Instant(time::Instant); - | ------------------ doesn't satisfy `Instant: Default` - | - ::: $SRC_DIR/alloc/src/vec/mod.rs:LL:COL + = note: doesn't satisfy `Instant: Default` + --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL | -LL | pub struct Vec<T, #[unstable(feature = "allocator_api", issue = "32838")] A: Allocator = Global> { - | ------------------------------------------------------------------------------------------------ doesn't satisfy `Vec<Enum>: Clone` + = note: doesn't satisfy `Vec<Enum>: Clone` | = note: the following trait bounds were not satisfied: `Vec<Enum>: Clone` diff --git a/src/test/ui/suggestions/do-not-attempt-to-add-suggestions-with-no-changes.stderr b/src/test/ui/suggestions/do-not-attempt-to-add-suggestions-with-no-changes.stderr index 7bdc8e00f44..0cd6267b3b3 100644 --- a/src/test/ui/suggestions/do-not-attempt-to-add-suggestions-with-no-changes.stderr +++ b/src/test/ui/suggestions/do-not-attempt-to-add-suggestions-with-no-changes.stderr @@ -3,11 +3,9 @@ error[E0573]: expected type, found module `result` | LL | impl result { | ^^^^^^ help: an enum with a similar name exists: `Result` + --> $SRC_DIR/core/src/result.rs:LL:COL | - ::: $SRC_DIR/core/src/result.rs:LL:COL - | -LL | pub enum Result<T, E> { - | --------------------- similarly named enum `Result` defined here + = note: similarly named enum `Result` defined here error[E0573]: expected type, found variant `Err` --> $DIR/do-not-attempt-to-add-suggestions-with-no-changes.rs:3:25 diff --git a/src/test/ui/suggestions/dont-suggest-ref/duplicate-suggestions.rs b/src/test/ui/suggestions/dont-suggest-ref/duplicate-suggestions.rs index bf0c1dc27ce..e19d497f21d 100644 --- a/src/test/ui/suggestions/dont-suggest-ref/duplicate-suggestions.rs +++ b/src/test/ui/suggestions/dont-suggest-ref/duplicate-suggestions.rs @@ -38,31 +38,25 @@ pub fn main() { let &(X(_t), X(_u)) = &(x.clone(), x.clone()); //~^ ERROR cannot move - //~| HELP consider removing the `&` - //~| SUGGESTION (X(_t), X(_u)) + //~| HELP consider removing the borrow if let &(Either::One(_t), Either::Two(_u)) = &(e.clone(), e.clone()) { } //~^ ERROR cannot move - //~| HELP consider removing the `&` - //~| SUGGESTION (Either::One(_t), Either::Two(_u)) + //~| HELP consider removing the borrow while let &(Either::One(_t), Either::Two(_u)) = &(e.clone(), e.clone()) { } //~^ ERROR cannot move - //~| HELP consider removing the `&` - //~| SUGGESTION (Either::One(_t), Either::Two(_u)) + //~| HELP consider removing the borrow match &(e.clone(), e.clone()) { //~^ ERROR cannot move &(Either::One(_t), Either::Two(_u)) => (), - //~^ HELP consider removing the `&` - //~| SUGGESTION (Either::One(_t), Either::Two(_u)) + //~^ HELP consider removing the borrow &(Either::Two(_t), Either::One(_u)) => (), - //~^ HELP consider removing the `&` - //~| SUGGESTION (Either::Two(_t), Either::One(_u)) + //~^ HELP consider removing the borrow _ => (), } match &(e.clone(), e.clone()) { //~^ ERROR cannot move &(Either::One(_t), Either::Two(_u)) - //~^ HELP consider removing the `&` - //~| SUGGESTION (Either::One(_t), Either::Two(_u)) + //~^ HELP consider removing the borrow | &(Either::Two(_t), Either::One(_u)) => (), // FIXME: would really like a suggestion here too _ => (), @@ -70,51 +64,42 @@ pub fn main() { match &(e.clone(), e.clone()) { //~^ ERROR cannot move &(Either::One(_t), Either::Two(_u)) => (), - //~^ HELP consider removing the `&` - //~| SUGGESTION (Either::One(_t), Either::Two(_u)) + //~^ HELP consider removing the borrow &(Either::Two(ref _t), Either::One(ref _u)) => (), _ => (), } match &(e.clone(), e.clone()) { //~^ ERROR cannot move &(Either::One(_t), Either::Two(_u)) => (), - //~^ HELP consider removing the `&` - //~| SUGGESTION (Either::One(_t), Either::Two(_u)) + //~^ HELP consider removing the borrow (Either::Two(_t), Either::One(_u)) => (), _ => (), } fn f5(&(X(_t), X(_u)): &(X, X)) { } //~^ ERROR cannot move - //~| HELP consider removing the `&` - //~| SUGGESTION (X(_t), X(_u)) + //~| HELP consider removing the borrow let &mut (X(_t), X(_u)) = &mut (xm.clone(), xm.clone()); //~^ ERROR cannot move - //~| HELP consider removing the `&mut` - //~| SUGGESTION (X(_t), X(_u)) + //~| HELP consider removing the mutable borrow if let &mut (Either::One(_t), Either::Two(_u)) = &mut (em.clone(), em.clone()) { } //~^ ERROR cannot move - //~| HELP consider removing the `&mut` - //~| SUGGESTION (Either::One(_t), Either::Two(_u)) + //~| HELP consider removing the mutable borrow while let &mut (Either::One(_t), Either::Two(_u)) = &mut (em.clone(), em.clone()) { } //~^ ERROR cannot move - //~| HELP consider removing the `&mut` - //~| SUGGESTION (Either::One(_t), Either::Two(_u)) + //~| HELP consider removing the mutable borrow match &mut (em.clone(), em.clone()) { //~^ ERROR cannot move &mut (Either::One(_t), Either::Two(_u)) => (), - //~^ HELP consider removing the `&mut` - //~| SUGGESTION (Either::One(_t), Either::Two(_u)) + //~^ HELP consider removing the mutable borrow &mut (Either::Two(_t), Either::One(_u)) => (), - //~^ HELP consider removing the `&mut` - //~| SUGGESTION (Either::Two(_t), Either::One(_u)) + //~^ HELP consider removing the mutable borrow _ => (), } match &mut (em.clone(), em.clone()) { //~^ ERROR cannot move &mut (Either::One(_t), Either::Two(_u)) - //~^ HELP consider removing the `&mut` - //~| SUGGESTION (Either::One(_t), Either::Two(_u)) + //~^ HELP consider removing the mutable borrow | &mut (Either::Two(_t), Either::One(_u)) => (), // FIXME: would really like a suggestion here too _ => (), @@ -122,29 +107,25 @@ pub fn main() { match &mut (em.clone(), em.clone()) { //~^ ERROR cannot move &mut (Either::One(_t), Either::Two(_u)) => (), - //~^ HELP consider removing the `&mut` - //~| SUGGESTION (Either::One(_t), Either::Two(_u)) + //~^ HELP consider removing the mutable borrow &mut (Either::Two(ref _t), Either::One(ref _u)) => (), _ => (), } match &mut (em.clone(), em.clone()) { //~^ ERROR cannot move &mut (Either::One(_t), Either::Two(_u)) => (), - //~^ HELP consider removing the `&mut` - //~| SUGGESTION (Either::One(_t), Either::Two(_u)) + //~^ HELP consider removing the mutable borrow &mut (Either::Two(ref mut _t), Either::One(ref mut _u)) => (), _ => (), } match &mut (em.clone(), em.clone()) { //~^ ERROR cannot move &mut (Either::One(_t), Either::Two(_u)) => (), - //~^ HELP consider removing the `&mut` - //~| SUGGESTION (Either::One(_t), Either::Two(_u)) + //~^ HELP consider removing the mutable borrow (Either::Two(_t), Either::One(_u)) => (), _ => (), } fn f6(&mut (X(_t), X(_u)): &mut (X, X)) { } //~^ ERROR cannot move - //~| HELP consider removing the `&mut` - //~| SUGGESTION (X(_t), X(_u)) + //~| HELP consider removing the mutable borrow } diff --git a/src/test/ui/suggestions/dont-suggest-ref/duplicate-suggestions.stderr b/src/test/ui/suggestions/dont-suggest-ref/duplicate-suggestions.stderr index 40ad671f966..b96b3713f2a 100644 --- a/src/test/ui/suggestions/dont-suggest-ref/duplicate-suggestions.stderr +++ b/src/test/ui/suggestions/dont-suggest-ref/duplicate-suggestions.stderr @@ -2,40 +2,52 @@ error[E0507]: cannot move out of a shared reference --> $DIR/duplicate-suggestions.rs:39:27 | LL | let &(X(_t), X(_u)) = &(x.clone(), x.clone()); - | --------------- ^^^^^^^^^^^^^^^^^^^^^^^ - | | | | - | | | ...and here - | | data moved here - | help: consider removing the `&`: `(X(_t), X(_u))` + | -- -- ^^^^^^^^^^^^^^^^^^^^^^^ + | | | + | | ...and here + | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider removing the borrow + | +LL - let &(X(_t), X(_u)) = &(x.clone(), x.clone()); +LL + let (X(_t), X(_u)) = &(x.clone(), x.clone()); + | error[E0507]: cannot move out of a shared reference - --> $DIR/duplicate-suggestions.rs:43:50 + --> $DIR/duplicate-suggestions.rs:42:50 | LL | if let &(Either::One(_t), Either::Two(_u)) = &(e.clone(), e.clone()) { } - | ----------------------------------- ^^^^^^^^^^^^^^^^^^^^^^^ - | | | | - | | | ...and here - | | data moved here - | help: consider removing the `&`: `(Either::One(_t), Either::Two(_u))` + | -- -- ^^^^^^^^^^^^^^^^^^^^^^^ + | | | + | | ...and here + | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider removing the borrow + | +LL - if let &(Either::One(_t), Either::Two(_u)) = &(e.clone(), e.clone()) { } +LL + if let (Either::One(_t), Either::Two(_u)) = &(e.clone(), e.clone()) { } + | error[E0507]: cannot move out of a shared reference - --> $DIR/duplicate-suggestions.rs:47:53 + --> $DIR/duplicate-suggestions.rs:45:53 | LL | while let &(Either::One(_t), Either::Two(_u)) = &(e.clone(), e.clone()) { } - | ----------------------------------- ^^^^^^^^^^^^^^^^^^^^^^^ - | | | | - | | | ...and here - | | data moved here - | help: consider removing the `&`: `(Either::One(_t), Either::Two(_u))` + | -- -- ^^^^^^^^^^^^^^^^^^^^^^^ + | | | + | | ...and here + | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider removing the borrow + | +LL - while let &(Either::One(_t), Either::Two(_u)) = &(e.clone(), e.clone()) { } +LL + while let (Either::One(_t), Either::Two(_u)) = &(e.clone(), e.clone()) { } + | error[E0507]: cannot move out of a shared reference - --> $DIR/duplicate-suggestions.rs:51:11 + --> $DIR/duplicate-suggestions.rs:48:11 | LL | match &(e.clone(), e.clone()) { | ^^^^^^^^^^^^^^^^^^^^^^^ @@ -44,22 +56,24 @@ LL | &(Either::One(_t), Either::Two(_u)) => (), | -- -- ...and here | | | data moved here -... +LL | LL | &(Either::Two(_t), Either::One(_u)) => (), | -- ...and here -- ...and here | = note: move occurs because these variables have types that don't implement the `Copy` trait -help: consider removing the `&` +help: consider removing the borrow | -LL | (Either::One(_t), Either::Two(_u)) => (), - | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -help: consider removing the `&` +LL - &(Either::One(_t), Either::Two(_u)) => (), +LL + (Either::One(_t), Either::Two(_u)) => (), + | +help: consider removing the borrow + | +LL - &(Either::Two(_t), Either::One(_u)) => (), +LL + (Either::Two(_t), Either::One(_u)) => (), | -LL | (Either::Two(_t), Either::One(_u)) => (), - | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error[E0507]: cannot move out of a shared reference - --> $DIR/duplicate-suggestions.rs:61:11 + --> $DIR/duplicate-suggestions.rs:56:11 | LL | match &(e.clone(), e.clone()) { | ^^^^^^^^^^^^^^^^^^^^^^^ @@ -70,82 +84,98 @@ LL | &(Either::One(_t), Either::Two(_u)) | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait -help: consider removing the `&` +help: consider removing the borrow | -LL ~ (Either::One(_t), Either::Two(_u)) -LL + -LL + -LL ~ | &(Either::Two(_t), Either::One(_u)) => (), +LL - &(Either::One(_t), Either::Two(_u)) +LL + (Either::One(_t), Either::Two(_u)) | error[E0507]: cannot move out of a shared reference - --> $DIR/duplicate-suggestions.rs:70:11 + --> $DIR/duplicate-suggestions.rs:64:11 | LL | match &(e.clone(), e.clone()) { | ^^^^^^^^^^^^^^^^^^^^^^^ LL | LL | &(Either::One(_t), Either::Two(_u)) => (), - | ----------------------------------- - | | | | - | | | ...and here - | | data moved here - | help: consider removing the `&`: `(Either::One(_t), Either::Two(_u))` + | -- -- ...and here + | | + | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider removing the borrow + | +LL - &(Either::One(_t), Either::Two(_u)) => (), +LL + (Either::One(_t), Either::Two(_u)) => (), + | error[E0507]: cannot move out of a shared reference - --> $DIR/duplicate-suggestions.rs:78:11 + --> $DIR/duplicate-suggestions.rs:71:11 | LL | match &(e.clone(), e.clone()) { | ^^^^^^^^^^^^^^^^^^^^^^^ LL | LL | &(Either::One(_t), Either::Two(_u)) => (), - | ----------------------------------- - | | | | - | | | ...and here - | | data moved here - | help: consider removing the `&`: `(Either::One(_t), Either::Two(_u))` + | -- -- ...and here + | | + | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider removing the borrow + | +LL - &(Either::One(_t), Either::Two(_u)) => (), +LL + (Either::One(_t), Either::Two(_u)) => (), + | error[E0507]: cannot move out of a mutable reference - --> $DIR/duplicate-suggestions.rs:91:31 + --> $DIR/duplicate-suggestions.rs:82:31 | LL | let &mut (X(_t), X(_u)) = &mut (xm.clone(), xm.clone()); - | ------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - | | | | - | | | ...and here - | | data moved here - | help: consider removing the `&mut`: `(X(_t), X(_u))` + | -- -- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | | | + | | ...and here + | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider removing the mutable borrow + | +LL - let &mut (X(_t), X(_u)) = &mut (xm.clone(), xm.clone()); +LL + let (X(_t), X(_u)) = &mut (xm.clone(), xm.clone()); + | error[E0507]: cannot move out of a mutable reference - --> $DIR/duplicate-suggestions.rs:95:54 + --> $DIR/duplicate-suggestions.rs:85:54 | LL | if let &mut (Either::One(_t), Either::Two(_u)) = &mut (em.clone(), em.clone()) { } - | --------------------------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - | | | | - | | | ...and here - | | data moved here - | help: consider removing the `&mut`: `(Either::One(_t), Either::Two(_u))` + | -- -- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | | | + | | ...and here + | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider removing the mutable borrow + | +LL - if let &mut (Either::One(_t), Either::Two(_u)) = &mut (em.clone(), em.clone()) { } +LL + if let (Either::One(_t), Either::Two(_u)) = &mut (em.clone(), em.clone()) { } + | error[E0507]: cannot move out of a mutable reference - --> $DIR/duplicate-suggestions.rs:99:57 + --> $DIR/duplicate-suggestions.rs:88:57 | LL | while let &mut (Either::One(_t), Either::Two(_u)) = &mut (em.clone(), em.clone()) { } - | --------------------------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - | | | | - | | | ...and here - | | data moved here - | help: consider removing the `&mut`: `(Either::One(_t), Either::Two(_u))` + | -- -- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | | | + | | ...and here + | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider removing the mutable borrow + | +LL - while let &mut (Either::One(_t), Either::Two(_u)) = &mut (em.clone(), em.clone()) { } +LL + while let (Either::One(_t), Either::Two(_u)) = &mut (em.clone(), em.clone()) { } + | error[E0507]: cannot move out of a mutable reference - --> $DIR/duplicate-suggestions.rs:103:11 + --> $DIR/duplicate-suggestions.rs:91:11 | LL | match &mut (em.clone(), em.clone()) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -154,22 +184,24 @@ LL | &mut (Either::One(_t), Either::Two(_u)) => (), | -- -- ...and here | | | data moved here -... +LL | LL | &mut (Either::Two(_t), Either::One(_u)) => (), | -- ...and here -- ...and here | = note: move occurs because these variables have types that don't implement the `Copy` trait -help: consider removing the `&mut` +help: consider removing the mutable borrow + | +LL - &mut (Either::One(_t), Either::Two(_u)) => (), +LL + (Either::One(_t), Either::Two(_u)) => (), | -LL | (Either::One(_t), Either::Two(_u)) => (), - | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -help: consider removing the `&mut` +help: consider removing the mutable borrow + | +LL - &mut (Either::Two(_t), Either::One(_u)) => (), +LL + (Either::Two(_t), Either::One(_u)) => (), | -LL | (Either::Two(_t), Either::One(_u)) => (), - | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error[E0507]: cannot move out of a mutable reference - --> $DIR/duplicate-suggestions.rs:113:11 + --> $DIR/duplicate-suggestions.rs:99:11 | LL | match &mut (em.clone(), em.clone()) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -180,82 +212,97 @@ LL | &mut (Either::One(_t), Either::Two(_u)) | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait -help: consider removing the `&mut` +help: consider removing the mutable borrow | -LL ~ (Either::One(_t), Either::Two(_u)) -LL + -LL + -LL ~ | &mut (Either::Two(_t), Either::One(_u)) => (), +LL - &mut (Either::One(_t), Either::Two(_u)) +LL + (Either::One(_t), Either::Two(_u)) | error[E0507]: cannot move out of a mutable reference - --> $DIR/duplicate-suggestions.rs:122:11 + --> $DIR/duplicate-suggestions.rs:107:11 | LL | match &mut (em.clone(), em.clone()) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ LL | LL | &mut (Either::One(_t), Either::Two(_u)) => (), - | --------------------------------------- - | | | | - | | | ...and here - | | data moved here - | help: consider removing the `&mut`: `(Either::One(_t), Either::Two(_u))` + | -- -- ...and here + | | + | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider removing the mutable borrow + | +LL - &mut (Either::One(_t), Either::Two(_u)) => (), +LL + (Either::One(_t), Either::Two(_u)) => (), + | error[E0507]: cannot move out of a mutable reference - --> $DIR/duplicate-suggestions.rs:130:11 + --> $DIR/duplicate-suggestions.rs:114:11 | LL | match &mut (em.clone(), em.clone()) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ LL | LL | &mut (Either::One(_t), Either::Two(_u)) => (), - | --------------------------------------- - | | | | - | | | ...and here - | | data moved here - | help: consider removing the `&mut`: `(Either::One(_t), Either::Two(_u))` + | -- -- ...and here + | | + | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider removing the mutable borrow + | +LL - &mut (Either::One(_t), Either::Two(_u)) => (), +LL + (Either::One(_t), Either::Two(_u)) => (), + | error[E0507]: cannot move out of a mutable reference - --> $DIR/duplicate-suggestions.rs:138:11 + --> $DIR/duplicate-suggestions.rs:121:11 | LL | match &mut (em.clone(), em.clone()) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ LL | LL | &mut (Either::One(_t), Either::Two(_u)) => (), - | --------------------------------------- - | | | | - | | | ...and here - | | data moved here - | help: consider removing the `&mut`: `(Either::One(_t), Either::Two(_u))` + | -- -- ...and here + | | + | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider removing the mutable borrow + | +LL - &mut (Either::One(_t), Either::Two(_u)) => (), +LL + (Either::One(_t), Either::Two(_u)) => (), + | error[E0507]: cannot move out of a shared reference - --> $DIR/duplicate-suggestions.rs:86:11 + --> $DIR/duplicate-suggestions.rs:78:11 | LL | fn f5(&(X(_t), X(_u)): &(X, X)) { } | ^^^^--^^^^^--^^ - | | | | - | | | ...and here - | | data moved here - | help: consider removing the `&`: `(X(_t), X(_u))` + | | | + | | ...and here + | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider removing the borrow + | +LL - fn f5(&(X(_t), X(_u)): &(X, X)) { } +LL + fn f5((X(_t), X(_u)): &(X, X)) { } + | error[E0507]: cannot move out of a mutable reference - --> $DIR/duplicate-suggestions.rs:146:11 + --> $DIR/duplicate-suggestions.rs:128:11 | LL | fn f6(&mut (X(_t), X(_u)): &mut (X, X)) { } | ^^^^^^^^--^^^^^--^^ - | | | | - | | | ...and here - | | data moved here - | help: consider removing the `&mut`: `(X(_t), X(_u))` + | | | + | | ...and here + | data moved here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider removing the mutable borrow + | +LL - fn f6(&mut (X(_t), X(_u)): &mut (X, X)) { } +LL + fn f6((X(_t), X(_u)): &mut (X, X)) { } + | error: aborting due to 17 previous errors diff --git a/src/test/ui/suggestions/dont-suggest-ref/move-into-closure.rs b/src/test/ui/suggestions/dont-suggest-ref/move-into-closure.rs index f1e043c30f2..44eac3691a3 100644 --- a/src/test/ui/suggestions/dont-suggest-ref/move-into-closure.rs +++ b/src/test/ui/suggestions/dont-suggest-ref/move-into-closure.rs @@ -28,26 +28,21 @@ fn move_into_fn() { let X(_t) = x; //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &x if let Either::One(_t) = e { } //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &e while let Either::One(_t) = e { } //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &e match e { //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &e Either::One(_t) | Either::Two(_t) => (), } match e { //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &e Either::One(_t) => (), Either::Two(ref _t) => (), // FIXME: should suggest removing `ref` too @@ -56,26 +51,21 @@ fn move_into_fn() { let X(mut _t) = x; //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &x if let Either::One(mut _t) = em { } //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &em while let Either::One(mut _t) = em { } //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &em match em { //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &em Either::One(mut _t) | Either::Two(mut _t) => (), } match em { //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &em Either::One(mut _t) => (), Either::Two(ref _t) => (), // FIXME: should suggest removing `ref` too @@ -95,26 +85,21 @@ fn move_into_fnmut() { let X(_t) = x; //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &x if let Either::One(_t) = e { } //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &e while let Either::One(_t) = e { } //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &e match e { //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &e Either::One(_t) | Either::Two(_t) => (), } match e { //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &e Either::One(_t) => (), Either::Two(ref _t) => (), // FIXME: should suggest removing `ref` too @@ -123,26 +108,21 @@ fn move_into_fnmut() { let X(mut _t) = x; //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &x if let Either::One(mut _t) = em { } //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &em while let Either::One(mut _t) = em { } //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &em match em { //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &em Either::One(mut _t) | Either::Two(mut _t) => (), } match em { //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &em Either::One(mut _t) => (), Either::Two(ref _t) => (), // FIXME: should suggest removing `ref` too @@ -150,7 +130,6 @@ fn move_into_fnmut() { match em { //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &em Either::One(mut _t) => (), Either::Two(ref mut _t) => (), // FIXME: should suggest removing `ref` too diff --git a/src/test/ui/suggestions/dont-suggest-ref/move-into-closure.stderr b/src/test/ui/suggestions/dont-suggest-ref/move-into-closure.stderr index e06ee4290ab..edda2cbc735 100644 --- a/src/test/ui/suggestions/dont-suggest-ref/move-into-closure.stderr +++ b/src/test/ui/suggestions/dont-suggest-ref/move-into-closure.stderr @@ -7,13 +7,18 @@ LL | let x = X(Y); LL | consume_fn(|| { | -- captured by this `Fn` closure LL | let X(_t) = x; - | -- ^ help: consider borrowing here: `&x` + | -- ^ | | | data moved here | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | let X(_t) = &x; + | + error[E0507]: cannot move out of `e.0`, as `e` is a captured variable in an `Fn` closure - --> $DIR/move-into-closure.rs:32:34 + --> $DIR/move-into-closure.rs:31:34 | LL | let e = Either::One(X(Y)); | - captured outer variable @@ -22,13 +27,18 @@ LL | consume_fn(|| { | -- captured by this `Fn` closure ... LL | if let Either::One(_t) = e { } - | -- ^ help: consider borrowing here: `&e` + | -- ^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | if let Either::One(_t) = &e { } + | + error[E0507]: cannot move out of `e.0`, as `e` is a captured variable in an `Fn` closure - --> $DIR/move-into-closure.rs:36:37 + --> $DIR/move-into-closure.rs:34:37 | LL | let e = Either::One(X(Y)); | - captured outer variable @@ -37,13 +47,18 @@ LL | consume_fn(|| { | -- captured by this `Fn` closure ... LL | while let Either::One(_t) = e { } - | -- ^ help: consider borrowing here: `&e` + | -- ^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | while let Either::One(_t) = &e { } + | + error[E0507]: cannot move out of `e.0`, as `e` is a captured variable in an `Fn` closure - --> $DIR/move-into-closure.rs:40:15 + --> $DIR/move-into-closure.rs:37:15 | LL | let e = Either::One(X(Y)); | - captured outer variable @@ -52,16 +67,21 @@ LL | consume_fn(|| { | -- captured by this `Fn` closure ... LL | match e { - | ^ help: consider borrowing here: `&e` + | ^ ... LL | Either::One(_t) | -- | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | match &e { + | + error[E0507]: cannot move out of `e.0`, as `e` is a captured variable in an `Fn` closure - --> $DIR/move-into-closure.rs:47:15 + --> $DIR/move-into-closure.rs:43:15 | LL | let e = Either::One(X(Y)); | - captured outer variable @@ -70,16 +90,21 @@ LL | consume_fn(|| { | -- captured by this `Fn` closure ... LL | match e { - | ^ help: consider borrowing here: `&e` + | ^ ... LL | Either::One(_t) => (), | -- | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | match &e { + | + error[E0507]: cannot move out of `x.0`, as `x` is a captured variable in an `Fn` closure - --> $DIR/move-into-closure.rs:56:25 + --> $DIR/move-into-closure.rs:51:25 | LL | let x = X(Y); | - captured outer variable @@ -88,13 +113,18 @@ LL | consume_fn(|| { | -- captured by this `Fn` closure ... LL | let X(mut _t) = x; - | ------ ^ help: consider borrowing here: `&x` + | ------ ^ | | | data moved here | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | let X(mut _t) = &x; + | + error[E0507]: cannot move out of `em.0`, as `em` is a captured variable in an `Fn` closure - --> $DIR/move-into-closure.rs:60:38 + --> $DIR/move-into-closure.rs:54:38 | LL | let mut em = Either::One(X(Y)); | ------ captured outer variable @@ -103,13 +133,18 @@ LL | consume_fn(|| { | -- captured by this `Fn` closure ... LL | if let Either::One(mut _t) = em { } - | ------ ^^ help: consider borrowing here: `&em` + | ------ ^^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | if let Either::One(mut _t) = &em { } + | + error[E0507]: cannot move out of `em.0`, as `em` is a captured variable in an `Fn` closure - --> $DIR/move-into-closure.rs:64:41 + --> $DIR/move-into-closure.rs:57:41 | LL | let mut em = Either::One(X(Y)); | ------ captured outer variable @@ -118,13 +153,18 @@ LL | consume_fn(|| { | -- captured by this `Fn` closure ... LL | while let Either::One(mut _t) = em { } - | ------ ^^ help: consider borrowing here: `&em` + | ------ ^^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | while let Either::One(mut _t) = &em { } + | + error[E0507]: cannot move out of `em.0`, as `em` is a captured variable in an `Fn` closure - --> $DIR/move-into-closure.rs:68:15 + --> $DIR/move-into-closure.rs:60:15 | LL | let mut em = Either::One(X(Y)); | ------ captured outer variable @@ -133,16 +173,21 @@ LL | consume_fn(|| { | -- captured by this `Fn` closure ... LL | match em { - | ^^ help: consider borrowing here: `&em` + | ^^ ... LL | Either::One(mut _t) | ------ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | match &em { + | + error[E0507]: cannot move out of `em.0`, as `em` is a captured variable in an `Fn` closure - --> $DIR/move-into-closure.rs:75:15 + --> $DIR/move-into-closure.rs:66:15 | LL | let mut em = Either::One(X(Y)); | ------ captured outer variable @@ -151,16 +196,21 @@ LL | consume_fn(|| { | -- captured by this `Fn` closure ... LL | match em { - | ^^ help: consider borrowing here: `&em` + | ^^ ... LL | Either::One(mut _t) => (), | ------ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | match &em { + | + error[E0507]: cannot move out of `x.0`, as `x` is a captured variable in an `FnMut` closure - --> $DIR/move-into-closure.rs:95:21 + --> $DIR/move-into-closure.rs:85:21 | LL | let x = X(Y); | - captured outer variable @@ -168,13 +218,18 @@ LL | let x = X(Y); LL | consume_fnmut(|| { | -- captured by this `FnMut` closure LL | let X(_t) = x; - | -- ^ help: consider borrowing here: `&x` + | -- ^ | | | data moved here | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | let X(_t) = &x; + | + error[E0507]: cannot move out of `e.0`, as `e` is a captured variable in an `FnMut` closure - --> $DIR/move-into-closure.rs:99:34 + --> $DIR/move-into-closure.rs:88:34 | LL | let e = Either::One(X(Y)); | - captured outer variable @@ -183,13 +238,18 @@ LL | consume_fnmut(|| { | -- captured by this `FnMut` closure ... LL | if let Either::One(_t) = e { } - | -- ^ help: consider borrowing here: `&e` + | -- ^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | if let Either::One(_t) = &e { } + | + error[E0507]: cannot move out of `e.0`, as `e` is a captured variable in an `FnMut` closure - --> $DIR/move-into-closure.rs:103:37 + --> $DIR/move-into-closure.rs:91:37 | LL | let e = Either::One(X(Y)); | - captured outer variable @@ -198,13 +258,18 @@ LL | consume_fnmut(|| { | -- captured by this `FnMut` closure ... LL | while let Either::One(_t) = e { } - | -- ^ help: consider borrowing here: `&e` + | -- ^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | while let Either::One(_t) = &e { } + | + error[E0507]: cannot move out of `e.0`, as `e` is a captured variable in an `FnMut` closure - --> $DIR/move-into-closure.rs:107:15 + --> $DIR/move-into-closure.rs:94:15 | LL | let e = Either::One(X(Y)); | - captured outer variable @@ -213,16 +278,21 @@ LL | consume_fnmut(|| { | -- captured by this `FnMut` closure ... LL | match e { - | ^ help: consider borrowing here: `&e` + | ^ ... LL | Either::One(_t) | -- | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | match &e { + | + error[E0507]: cannot move out of `e.0`, as `e` is a captured variable in an `FnMut` closure - --> $DIR/move-into-closure.rs:114:15 + --> $DIR/move-into-closure.rs:100:15 | LL | let e = Either::One(X(Y)); | - captured outer variable @@ -231,16 +301,21 @@ LL | consume_fnmut(|| { | -- captured by this `FnMut` closure ... LL | match e { - | ^ help: consider borrowing here: `&e` + | ^ ... LL | Either::One(_t) => (), | -- | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | match &e { + | + error[E0507]: cannot move out of `x.0`, as `x` is a captured variable in an `FnMut` closure - --> $DIR/move-into-closure.rs:123:25 + --> $DIR/move-into-closure.rs:108:25 | LL | let x = X(Y); | - captured outer variable @@ -249,13 +324,18 @@ LL | consume_fnmut(|| { | -- captured by this `FnMut` closure ... LL | let X(mut _t) = x; - | ------ ^ help: consider borrowing here: `&x` + | ------ ^ | | | data moved here | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | let X(mut _t) = &x; + | + error[E0507]: cannot move out of `em.0`, as `em` is a captured variable in an `FnMut` closure - --> $DIR/move-into-closure.rs:127:38 + --> $DIR/move-into-closure.rs:111:38 | LL | let mut em = Either::One(X(Y)); | ------ captured outer variable @@ -264,13 +344,18 @@ LL | consume_fnmut(|| { | -- captured by this `FnMut` closure ... LL | if let Either::One(mut _t) = em { } - | ------ ^^ help: consider borrowing here: `&em` + | ------ ^^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | if let Either::One(mut _t) = &em { } + | + error[E0507]: cannot move out of `em.0`, as `em` is a captured variable in an `FnMut` closure - --> $DIR/move-into-closure.rs:131:41 + --> $DIR/move-into-closure.rs:114:41 | LL | let mut em = Either::One(X(Y)); | ------ captured outer variable @@ -279,13 +364,18 @@ LL | consume_fnmut(|| { | -- captured by this `FnMut` closure ... LL | while let Either::One(mut _t) = em { } - | ------ ^^ help: consider borrowing here: `&em` + | ------ ^^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | while let Either::One(mut _t) = &em { } + | + error[E0507]: cannot move out of `em.0`, as `em` is a captured variable in an `FnMut` closure - --> $DIR/move-into-closure.rs:135:15 + --> $DIR/move-into-closure.rs:117:15 | LL | let mut em = Either::One(X(Y)); | ------ captured outer variable @@ -294,16 +384,21 @@ LL | consume_fnmut(|| { | -- captured by this `FnMut` closure ... LL | match em { - | ^^ help: consider borrowing here: `&em` + | ^^ ... LL | Either::One(mut _t) | ------ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | match &em { + | + error[E0507]: cannot move out of `em.0`, as `em` is a captured variable in an `FnMut` closure - --> $DIR/move-into-closure.rs:142:15 + --> $DIR/move-into-closure.rs:123:15 | LL | let mut em = Either::One(X(Y)); | ------ captured outer variable @@ -312,16 +407,21 @@ LL | consume_fnmut(|| { | -- captured by this `FnMut` closure ... LL | match em { - | ^^ help: consider borrowing here: `&em` + | ^^ ... LL | Either::One(mut _t) => (), | ------ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | match &em { + | + error[E0507]: cannot move out of `em.0`, as `em` is a captured variable in an `FnMut` closure - --> $DIR/move-into-closure.rs:150:15 + --> $DIR/move-into-closure.rs:130:15 | LL | let mut em = Either::One(X(Y)); | ------ captured outer variable @@ -330,13 +430,18 @@ LL | consume_fnmut(|| { | -- captured by this `FnMut` closure ... LL | match em { - | ^^ help: consider borrowing here: `&em` + | ^^ ... LL | Either::One(mut _t) => (), | ------ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | match &em { + | + error: aborting due to 21 previous errors diff --git a/src/test/ui/suggestions/dont-suggest-ref/simple.rs b/src/test/ui/suggestions/dont-suggest-ref/simple.rs index c53ac3d2cd6..1e40e60a1ce 100644 --- a/src/test/ui/suggestions/dont-suggest-ref/simple.rs +++ b/src/test/ui/suggestions/dont-suggest-ref/simple.rs @@ -37,27 +37,22 @@ pub fn main() { let X(_t) = *s; //~^ ERROR cannot move - //~| HELP consider borrowing here - //~| SUGGESTION s + //~| HELP consider removing the dereference here if let Either::One(_t) = *r { } //~^ ERROR cannot move - //~| HELP consider borrowing here - //~| SUGGESTION r + //~| HELP consider removing the dereference here while let Either::One(_t) = *r { } //~^ ERROR cannot move - //~| HELP consider borrowing here - //~| SUGGESTION r + //~| HELP consider removing the dereference here match *r { //~^ ERROR cannot move - //~| HELP consider borrowing here - //~| SUGGESTION r + //~| HELP consider removing the dereference here Either::One(_t) | Either::Two(_t) => (), } match *r { //~^ ERROR cannot move - //~| HELP consider borrowing here - //~| SUGGESTION r + //~| HELP consider removing the dereference here Either::One(_t) => (), Either::Two(ref _t) => (), // FIXME: should suggest removing `ref` too @@ -65,35 +60,29 @@ pub fn main() { let X(_t) = *sm; //~^ ERROR cannot move - //~| HELP consider borrowing here - //~| SUGGESTION sm + //~| HELP consider removing the dereference here if let Either::One(_t) = *rm { } //~^ ERROR cannot move - //~| HELP consider borrowing here - //~| SUGGESTION rm + //~| HELP consider removing the dereference here while let Either::One(_t) = *rm { } //~^ ERROR cannot move - //~| HELP consider borrowing here - //~| SUGGESTION rm + //~| HELP consider removing the dereference here match *rm { //~^ ERROR cannot move - //~| HELP consider borrowing here - //~| SUGGESTION rm + //~| HELP consider removing the dereference here Either::One(_t) | Either::Two(_t) => (), } match *rm { //~^ ERROR cannot move - //~| HELP consider borrowing here - //~| SUGGESTION rm + //~| HELP consider removing the dereference here Either::One(_t) => (), Either::Two(ref _t) => (), // FIXME: should suggest removing `ref` too } match *rm { //~^ ERROR cannot move - //~| HELP consider borrowing here - //~| SUGGESTION rm + //~| HELP consider removing the dereference here Either::One(_t) => (), Either::Two(ref mut _t) => (), // FIXME: should suggest removing `ref` too @@ -102,26 +91,21 @@ pub fn main() { let X(_t) = vs[0]; //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &vs[0] if let Either::One(_t) = vr[0] { } //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &vr[0] while let Either::One(_t) = vr[0] { } //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &vr[0] match vr[0] { //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &vr[0] Either::One(_t) | Either::Two(_t) => (), } match vr[0] { //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &vr[0] Either::One(_t) => (), Either::Two(ref _t) => (), // FIXME: should suggest removing `ref` too @@ -130,26 +114,21 @@ pub fn main() { let X(_t) = vsm[0]; //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &vsm[0] if let Either::One(_t) = vrm[0] { } //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &vrm[0] while let Either::One(_t) = vrm[0] { } //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &vrm[0] match vrm[0] { //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &vrm[0] Either::One(_t) | Either::Two(_t) => (), } match vrm[0] { //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &vrm[0] Either::One(_t) => (), Either::Two(ref _t) => (), // FIXME: should suggest removing `ref` too @@ -157,7 +136,6 @@ pub fn main() { match vrm[0] { //~^ ERROR cannot move //~| HELP consider borrowing here - //~| SUGGESTION &vrm[0] Either::One(_t) => (), Either::Two(ref mut _t) => (), // FIXME: should suggest removing `ref` too @@ -167,89 +145,73 @@ pub fn main() { let &X(_t) = s; //~^ ERROR cannot move - //~| HELP consider removing the `&` - //~| SUGGESTION X(_t) + //~| HELP consider removing if let &Either::One(_t) = r { } //~^ ERROR cannot move - //~| HELP consider removing the `&` - //~| SUGGESTION Either::One(_t) + //~| HELP consider removing while let &Either::One(_t) = r { } //~^ ERROR cannot move - //~| HELP consider removing the `&` - //~| SUGGESTION Either::One(_t) + //~| HELP consider removing match r { //~^ ERROR cannot move &Either::One(_t) - //~^ HELP consider removing the `&` - //~| SUGGESTION Either::One(_t) + //~^ HELP consider removing | &Either::Two(_t) => (), // FIXME: would really like a suggestion here too } match r { //~^ ERROR cannot move &Either::One(_t) => (), - //~^ HELP consider removing the `&` - //~| SUGGESTION Either::One(_t) + //~^ HELP consider removing &Either::Two(ref _t) => (), } match r { //~^ ERROR cannot move &Either::One(_t) => (), - //~^ HELP consider removing the `&` - //~| SUGGESTION Either::One(_t) + //~^ HELP consider removing Either::Two(_t) => (), } fn f1(&X(_t): &X) { } //~^ ERROR cannot move - //~| HELP consider removing the `&` - //~| SUGGESTION X(_t) + //~| HELP consider removing let &mut X(_t) = sm; //~^ ERROR cannot move - //~| HELP consider removing the `&mut` - //~| SUGGESTION X(_t) + //~| HELP consider removing if let &mut Either::One(_t) = rm { } //~^ ERROR cannot move - //~| HELP consider removing the `&mut` - //~| SUGGESTION Either::One(_t) + //~| HELP consider removing while let &mut Either::One(_t) = rm { } //~^ ERROR cannot move - //~| HELP consider removing the `&mut` - //~| SUGGESTION Either::One(_t) + //~| HELP consider removing match rm { //~^ ERROR cannot move &mut Either::One(_t) => (), - //~^ HELP consider removing the `&mut` - //~| SUGGESTION Either::One(_t) + //~^ HELP consider removing &mut Either::Two(_t) => (), - //~^ HELP consider removing the `&mut` - //~| SUGGESTION Either::Two(_t) + //~^ HELP consider removing } match rm { //~^ ERROR cannot move &mut Either::One(_t) => (), - //~^ HELP consider removing the `&mut` - //~| SUGGESTION Either::One(_t) + //~^ HELP consider removing &mut Either::Two(ref _t) => (), } match rm { //~^ ERROR cannot move &mut Either::One(_t) => (), - //~^ HELP consider removing the `&mut` - //~| SUGGESTION Either::One(_t) + //~^ HELP consider removing &mut Either::Two(ref mut _t) => (), } match rm { //~^ ERROR cannot move &mut Either::One(_t) => (), - //~^ HELP consider removing the `&mut` - //~| SUGGESTION Either::One(_t) + //~^ HELP consider removing Either::Two(_t) => (), } fn f2(&mut X(_t): &mut X) { } //~^ ERROR cannot move - //~| HELP consider removing the `&mut` - //~| SUGGESTION X(_t) + //~| HELP consider removing // move from tuple of &Either/&X @@ -257,108 +219,118 @@ pub fn main() { let (&X(_t),) = (&x.clone(),); //~^ ERROR cannot move + //~| HELP consider borrowing the pattern binding if let (&Either::One(_t),) = (&e.clone(),) { } //~^ ERROR cannot move + //~| HELP consider borrowing the pattern binding while let (&Either::One(_t),) = (&e.clone(),) { } //~^ ERROR cannot move + //~| HELP consider borrowing the pattern binding match (&e.clone(),) { //~^ ERROR cannot move (&Either::One(_t),) + //~^ HELP consider borrowing the pattern binding | (&Either::Two(_t),) => (), } fn f3((&X(_t),): (&X,)) { } //~^ ERROR cannot move + //~| HELP consider borrowing the pattern binding let (&mut X(_t),) = (&mut xm.clone(),); //~^ ERROR cannot move + //~| HELP consider borrowing the pattern binding if let (&mut Either::One(_t),) = (&mut em.clone(),) { } //~^ ERROR cannot move + //~| HELP consider borrowing the pattern binding while let (&mut Either::One(_t),) = (&mut em.clone(),) { } //~^ ERROR cannot move + //~| HELP consider borrowing the pattern binding match (&mut em.clone(),) { //~^ ERROR cannot move (&mut Either::One(_t),) => (), + //~^ HELP consider borrowing the pattern binding (&mut Either::Two(_t),) => (), + //~^ HELP consider borrowing the pattern binding } fn f4((&mut X(_t),): (&mut X,)) { } //~^ ERROR cannot move + //~| HELP consider borrowing the pattern binding // move from &Either/&X value let &X(_t) = &x; //~^ ERROR cannot move - //~| HELP consider removing the `&` - //~| SUGGESTION X(_t) + //~| HELP consider removing if let &Either::One(_t) = &e { } //~^ ERROR cannot move - //~| HELP consider removing the `&` - //~| SUGGESTION Either::One(_t) + //~| HELP consider removing while let &Either::One(_t) = &e { } //~^ ERROR cannot move - //~| HELP consider removing the `&` - //~| SUGGESTION Either::One(_t) + //~| HELP consider removing match &e { //~^ ERROR cannot move &Either::One(_t) - //~^ HELP consider removing the `&` - //~| SUGGESTION Either::One(_t) + //~^ HELP consider removing | &Either::Two(_t) => (), // FIXME: would really like a suggestion here too } match &e { //~^ ERROR cannot move &Either::One(_t) => (), - //~^ HELP consider removing the `&` - //~| SUGGESTION Either::One(_t) + //~^ HELP consider removing &Either::Two(ref _t) => (), } match &e { //~^ ERROR cannot move &Either::One(_t) => (), - //~^ HELP consider removing the `&` - //~| SUGGESTION Either::One(_t) + //~^ HELP consider removing Either::Two(_t) => (), } let &mut X(_t) = &mut xm; //~^ ERROR cannot move - //~| HELP consider removing the `&mut` - //~| SUGGESTION X(_t) + //~| HELP consider removing if let &mut Either::One(_t) = &mut em { } //~^ ERROR cannot move - //~| HELP consider removing the `&mut` - //~| SUGGESTION Either::One(_t) + //~| HELP consider removing while let &mut Either::One(_t) = &mut em { } //~^ ERROR cannot move - //~| HELP consider removing the `&mut` - //~| SUGGESTION Either::One(_t) + //~| HELP consider removing match &mut em { //~^ ERROR cannot move &mut Either::One(_t) - //~^ HELP consider removing the `&mut` - //~| SUGGESTION Either::One(_t) + //~^ HELP consider removing | &mut Either::Two(_t) => (), // FIXME: would really like a suggestion here too } match &mut em { //~^ ERROR cannot move &mut Either::One(_t) => (), - //~^ HELP consider removing the `&mut` - //~| SUGGESTION Either::One(_t) + //~^ HELP consider removing &mut Either::Two(ref _t) => (), } match &mut em { //~^ ERROR cannot move &mut Either::One(_t) => (), - //~^ HELP consider removing the `&mut` - //~| SUGGESTION Either::One(_t) + //~^ HELP consider removing &mut Either::Two(ref mut _t) => (), } match &mut em { //~^ ERROR cannot move &mut Either::One(_t) => (), - //~^ HELP consider removing the `&mut` - //~| SUGGESTION Either::One(_t) + //~^ HELP consider removing Either::Two(_t) => (), } } + +struct Testing { + a: Option<String> +} + +fn testing(a: &Testing) { + let Some(_s) = a.a else { + //~^ ERROR cannot move + //~| HELP consider borrowing the pattern binding + return; + }; +} diff --git a/src/test/ui/suggestions/dont-suggest-ref/simple.stderr b/src/test/ui/suggestions/dont-suggest-ref/simple.stderr index e5443290f9e..52632652423 100644 --- a/src/test/ui/suggestions/dont-suggest-ref/simple.stderr +++ b/src/test/ui/suggestions/dont-suggest-ref/simple.stderr @@ -2,262 +2,398 @@ error[E0507]: cannot move out of `s` which is behind a shared reference --> $DIR/simple.rs:38:17 | LL | let X(_t) = *s; - | -- ^^ help: consider borrowing here: `&*s` + | -- ^^ | | | data moved here | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let X(_t) = *s; +LL + let X(_t) = s; + | error[E0507]: cannot move out of `r` as enum variant `One` which is behind a shared reference - --> $DIR/simple.rs:42:30 + --> $DIR/simple.rs:41:30 | LL | if let Either::One(_t) = *r { } - | -- ^^ help: consider borrowing here: `&*r` + | -- ^^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - if let Either::One(_t) = *r { } +LL + if let Either::One(_t) = r { } + | error[E0507]: cannot move out of `r` as enum variant `One` which is behind a shared reference - --> $DIR/simple.rs:46:33 + --> $DIR/simple.rs:44:33 | LL | while let Either::One(_t) = *r { } - | -- ^^ help: consider borrowing here: `&*r` + | -- ^^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - while let Either::One(_t) = *r { } +LL + while let Either::One(_t) = r { } + | error[E0507]: cannot move out of `r` as enum variant `Two` which is behind a shared reference - --> $DIR/simple.rs:50:11 + --> $DIR/simple.rs:47:11 | LL | match *r { - | ^^ help: consider borrowing here: `&*r` + | ^^ ... LL | Either::One(_t) | -- | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - match *r { +LL + match r { + | error[E0507]: cannot move out of `r` as enum variant `One` which is behind a shared reference - --> $DIR/simple.rs:57:11 + --> $DIR/simple.rs:53:11 | LL | match *r { - | ^^ help: consider borrowing here: `&*r` + | ^^ ... LL | Either::One(_t) => (), | -- | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - match *r { +LL + match r { + | error[E0507]: cannot move out of `sm` which is behind a mutable reference - --> $DIR/simple.rs:66:17 + --> $DIR/simple.rs:61:17 | LL | let X(_t) = *sm; - | -- ^^^ help: consider borrowing here: `&*sm` + | -- ^^^ | | | data moved here | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - let X(_t) = *sm; +LL + let X(_t) = sm; + | error[E0507]: cannot move out of `rm` as enum variant `One` which is behind a mutable reference - --> $DIR/simple.rs:70:30 + --> $DIR/simple.rs:64:30 | LL | if let Either::One(_t) = *rm { } - | -- ^^^ help: consider borrowing here: `&*rm` + | -- ^^^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - if let Either::One(_t) = *rm { } +LL + if let Either::One(_t) = rm { } + | error[E0507]: cannot move out of `rm` as enum variant `One` which is behind a mutable reference - --> $DIR/simple.rs:74:33 + --> $DIR/simple.rs:67:33 | LL | while let Either::One(_t) = *rm { } - | -- ^^^ help: consider borrowing here: `&*rm` + | -- ^^^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - while let Either::One(_t) = *rm { } +LL + while let Either::One(_t) = rm { } + | error[E0507]: cannot move out of `rm` as enum variant `Two` which is behind a mutable reference - --> $DIR/simple.rs:78:11 + --> $DIR/simple.rs:70:11 | LL | match *rm { - | ^^^ help: consider borrowing here: `&*rm` + | ^^^ ... LL | Either::One(_t) | -- | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - match *rm { +LL + match rm { + | error[E0507]: cannot move out of `rm` as enum variant `One` which is behind a mutable reference - --> $DIR/simple.rs:85:11 + --> $DIR/simple.rs:76:11 | LL | match *rm { - | ^^^ help: consider borrowing here: `&*rm` + | ^^^ ... LL | Either::One(_t) => (), | -- | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - match *rm { +LL + match rm { + | error[E0507]: cannot move out of `rm` as enum variant `One` which is behind a mutable reference - --> $DIR/simple.rs:93:11 + --> $DIR/simple.rs:83:11 | LL | match *rm { - | ^^^ help: consider borrowing here: `&*rm` + | ^^^ ... LL | Either::One(_t) => (), | -- | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the dereference here + | +LL - match *rm { +LL + match rm { + | error[E0507]: cannot move out of index of `Vec<X>` - --> $DIR/simple.rs:102:17 + --> $DIR/simple.rs:91:17 | LL | let X(_t) = vs[0]; - | -- ^^^^^ help: consider borrowing here: `&vs[0]` + | -- ^^^^^ | | | data moved here | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | let X(_t) = &vs[0]; + | + error[E0507]: cannot move out of index of `Vec<Either>` - --> $DIR/simple.rs:106:30 + --> $DIR/simple.rs:94:30 | LL | if let Either::One(_t) = vr[0] { } - | -- ^^^^^ help: consider borrowing here: `&vr[0]` + | -- ^^^^^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | if let Either::One(_t) = &vr[0] { } + | + error[E0507]: cannot move out of index of `Vec<Either>` - --> $DIR/simple.rs:110:33 + --> $DIR/simple.rs:97:33 | LL | while let Either::One(_t) = vr[0] { } - | -- ^^^^^ help: consider borrowing here: `&vr[0]` + | -- ^^^^^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | while let Either::One(_t) = &vr[0] { } + | + error[E0507]: cannot move out of index of `Vec<Either>` - --> $DIR/simple.rs:114:11 + --> $DIR/simple.rs:100:11 | LL | match vr[0] { - | ^^^^^ help: consider borrowing here: `&vr[0]` + | ^^^^^ ... LL | Either::One(_t) | -- | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | match &vr[0] { + | + error[E0507]: cannot move out of index of `Vec<Either>` - --> $DIR/simple.rs:121:11 + --> $DIR/simple.rs:106:11 | LL | match vr[0] { - | ^^^^^ help: consider borrowing here: `&vr[0]` + | ^^^^^ ... LL | Either::One(_t) => (), | -- | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | match &vr[0] { + | + error[E0507]: cannot move out of index of `Vec<X>` - --> $DIR/simple.rs:130:17 + --> $DIR/simple.rs:114:17 | LL | let X(_t) = vsm[0]; - | -- ^^^^^^ help: consider borrowing here: `&vsm[0]` + | -- ^^^^^^ | | | data moved here | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | let X(_t) = &vsm[0]; + | + error[E0507]: cannot move out of index of `Vec<Either>` - --> $DIR/simple.rs:134:30 + --> $DIR/simple.rs:117:30 | LL | if let Either::One(_t) = vrm[0] { } - | -- ^^^^^^ help: consider borrowing here: `&vrm[0]` + | -- ^^^^^^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | if let Either::One(_t) = &vrm[0] { } + | + error[E0507]: cannot move out of index of `Vec<Either>` - --> $DIR/simple.rs:138:33 + --> $DIR/simple.rs:120:33 | LL | while let Either::One(_t) = vrm[0] { } - | -- ^^^^^^ help: consider borrowing here: `&vrm[0]` + | -- ^^^^^^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | while let Either::One(_t) = &vrm[0] { } + | + error[E0507]: cannot move out of index of `Vec<Either>` - --> $DIR/simple.rs:142:11 + --> $DIR/simple.rs:123:11 | LL | match vrm[0] { - | ^^^^^^ help: consider borrowing here: `&vrm[0]` + | ^^^^^^ ... LL | Either::One(_t) | -- | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | match &vrm[0] { + | + error[E0507]: cannot move out of index of `Vec<Either>` - --> $DIR/simple.rs:149:11 + --> $DIR/simple.rs:129:11 | LL | match vrm[0] { - | ^^^^^^ help: consider borrowing here: `&vrm[0]` + | ^^^^^^ ... LL | Either::One(_t) => (), | -- | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | match &vrm[0] { + | + error[E0507]: cannot move out of index of `Vec<Either>` - --> $DIR/simple.rs:157:11 + --> $DIR/simple.rs:136:11 | LL | match vrm[0] { - | ^^^^^^ help: consider borrowing here: `&vrm[0]` + | ^^^^^^ ... LL | Either::One(_t) => (), | -- | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | match &vrm[0] { + | + error[E0507]: cannot move out of `s` which is behind a shared reference - --> $DIR/simple.rs:168:18 + --> $DIR/simple.rs:146:18 | LL | let &X(_t) = s; - | ------ ^ - | | | - | | data moved here - | | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait - | help: consider removing the `&`: `X(_t)` + | -- ^ + | | + | data moved here + | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - let &X(_t) = s; +LL + let X(_t) = s; + | error[E0507]: cannot move out of `r` as enum variant `One` which is behind a shared reference - --> $DIR/simple.rs:172:31 + --> $DIR/simple.rs:149:31 | LL | if let &Either::One(_t) = r { } - | ---------------- ^ - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&`: `Either::One(_t)` + | -- ^ + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - if let &Either::One(_t) = r { } +LL + if let Either::One(_t) = r { } + | error[E0507]: cannot move out of `r` as enum variant `One` which is behind a shared reference - --> $DIR/simple.rs:176:34 + --> $DIR/simple.rs:152:34 | LL | while let &Either::One(_t) = r { } - | ---------------- ^ - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&`: `Either::One(_t)` + | -- ^ + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - while let &Either::One(_t) = r { } +LL + while let Either::One(_t) = r { } + | error[E0507]: cannot move out of `r` as enum variant `Two` which is behind a shared reference - --> $DIR/simple.rs:180:11 + --> $DIR/simple.rs:155:11 | LL | match r { | ^ @@ -268,160 +404,215 @@ LL | &Either::One(_t) | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait | -help: consider removing the `&` +help: consider removing the borrow | -LL ~ Either::One(_t) -LL + -LL + -LL ~ | &Either::Two(_t) => (), +LL - &Either::One(_t) +LL + Either::One(_t) | error[E0507]: cannot move out of `r` as enum variant `One` which is behind a shared reference - --> $DIR/simple.rs:188:11 + --> $DIR/simple.rs:162:11 | LL | match r { | ^ LL | LL | &Either::One(_t) => (), - | ---------------- - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&`: `Either::One(_t)` + | -- + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - &Either::One(_t) => (), +LL + Either::One(_t) => (), + | error[E0507]: cannot move out of `r` as enum variant `One` which is behind a shared reference - --> $DIR/simple.rs:195:11 + --> $DIR/simple.rs:168:11 | LL | match r { | ^ LL | LL | &Either::One(_t) => (), - | ---------------- - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&`: `Either::One(_t)` + | -- + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - &Either::One(_t) => (), +LL + Either::One(_t) => (), + | error[E0507]: cannot move out of `sm` which is behind a mutable reference - --> $DIR/simple.rs:207:22 + --> $DIR/simple.rs:178:22 | LL | let &mut X(_t) = sm; - | ---------- ^^ - | | | - | | data moved here - | | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait - | help: consider removing the `&mut`: `X(_t)` + | -- ^^ + | | + | data moved here + | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider removing the mutable borrow + | +LL - let &mut X(_t) = sm; +LL + let X(_t) = sm; + | error[E0507]: cannot move out of `rm` as enum variant `One` which is behind a mutable reference - --> $DIR/simple.rs:211:35 + --> $DIR/simple.rs:181:35 | LL | if let &mut Either::One(_t) = rm { } - | -------------------- ^^ - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&mut`: `Either::One(_t)` + | -- ^^ + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the mutable borrow + | +LL - if let &mut Either::One(_t) = rm { } +LL + if let Either::One(_t) = rm { } + | error[E0507]: cannot move out of `rm` as enum variant `One` which is behind a mutable reference - --> $DIR/simple.rs:215:38 + --> $DIR/simple.rs:184:38 | LL | while let &mut Either::One(_t) = rm { } - | -------------------- ^^ - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&mut`: `Either::One(_t)` + | -- ^^ + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the mutable borrow + | +LL - while let &mut Either::One(_t) = rm { } +LL + while let Either::One(_t) = rm { } + | error[E0507]: cannot move out of `rm` as enum variant `Two` which is behind a mutable reference - --> $DIR/simple.rs:219:11 + --> $DIR/simple.rs:187:11 | LL | match rm { | ^^ LL | LL | &mut Either::One(_t) => (), | -- data moved here -... +LL | LL | &mut Either::Two(_t) => (), | -- ...and here | = note: move occurs because these variables have types that don't implement the `Copy` trait -help: consider removing the `&mut` +help: consider removing the mutable borrow | -LL | Either::One(_t) => (), - | ~~~~~~~~~~~~~~~ -help: consider removing the `&mut` +LL - &mut Either::One(_t) => (), +LL + Either::One(_t) => (), + | +help: consider removing the mutable borrow + | +LL - &mut Either::Two(_t) => (), +LL + Either::Two(_t) => (), | -LL | Either::Two(_t) => (), - | ~~~~~~~~~~~~~~~ error[E0507]: cannot move out of `rm` as enum variant `One` which is behind a mutable reference - --> $DIR/simple.rs:228:11 + --> $DIR/simple.rs:194:11 | LL | match rm { | ^^ LL | LL | &mut Either::One(_t) => (), - | -------------------- - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&mut`: `Either::One(_t)` + | -- + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the mutable borrow + | +LL - &mut Either::One(_t) => (), +LL + Either::One(_t) => (), + | error[E0507]: cannot move out of `rm` as enum variant `One` which is behind a mutable reference - --> $DIR/simple.rs:235:11 + --> $DIR/simple.rs:200:11 | LL | match rm { | ^^ LL | LL | &mut Either::One(_t) => (), - | -------------------- - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&mut`: `Either::One(_t)` + | -- + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the mutable borrow + | +LL - &mut Either::One(_t) => (), +LL + Either::One(_t) => (), + | error[E0507]: cannot move out of `rm` as enum variant `One` which is behind a mutable reference - --> $DIR/simple.rs:242:11 + --> $DIR/simple.rs:206:11 | LL | match rm { | ^^ LL | LL | &mut Either::One(_t) => (), - | -------------------- - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&mut`: `Either::One(_t)` + | -- + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the mutable borrow + | +LL - &mut Either::One(_t) => (), +LL + Either::One(_t) => (), + | error[E0507]: cannot move out of a shared reference - --> $DIR/simple.rs:258:21 + --> $DIR/simple.rs:220:21 | LL | let (&X(_t),) = (&x.clone(),); | -- ^^^^^^^^^^^^^ | | | data moved here | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | let (&X(ref _t),) = (&x.clone(),); + | +++ error[E0507]: cannot move out of a shared reference - --> $DIR/simple.rs:260:34 + --> $DIR/simple.rs:223:34 | LL | if let (&Either::One(_t),) = (&e.clone(),) { } | -- ^^^^^^^^^^^^^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | if let (&Either::One(ref _t),) = (&e.clone(),) { } + | +++ error[E0507]: cannot move out of a shared reference - --> $DIR/simple.rs:262:37 + --> $DIR/simple.rs:226:37 | LL | while let (&Either::One(_t),) = (&e.clone(),) { } | -- ^^^^^^^^^^^^^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | while let (&Either::One(ref _t),) = (&e.clone(),) { } + | +++ error[E0507]: cannot move out of a shared reference - --> $DIR/simple.rs:264:11 + --> $DIR/simple.rs:229:11 | LL | match (&e.clone(),) { | ^^^^^^^^^^^^^ @@ -431,79 +622,123 @@ LL | (&Either::One(_t),) | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | (&Either::One(ref _t),) + | +++ error[E0507]: cannot move out of a mutable reference - --> $DIR/simple.rs:272:25 + --> $DIR/simple.rs:239:25 | LL | let (&mut X(_t),) = (&mut xm.clone(),); | -- ^^^^^^^^^^^^^^^^^^ | | | data moved here | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | let (&mut X(ref _t),) = (&mut xm.clone(),); + | +++ error[E0507]: cannot move out of a mutable reference - --> $DIR/simple.rs:274:38 + --> $DIR/simple.rs:242:38 | LL | if let (&mut Either::One(_t),) = (&mut em.clone(),) { } | -- ^^^^^^^^^^^^^^^^^^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | if let (&mut Either::One(ref _t),) = (&mut em.clone(),) { } + | +++ error[E0507]: cannot move out of a mutable reference - --> $DIR/simple.rs:276:41 + --> $DIR/simple.rs:245:41 | LL | while let (&mut Either::One(_t),) = (&mut em.clone(),) { } | -- ^^^^^^^^^^^^^^^^^^ | | | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | while let (&mut Either::One(ref _t),) = (&mut em.clone(),) { } + | +++ error[E0507]: cannot move out of a mutable reference - --> $DIR/simple.rs:278:11 + --> $DIR/simple.rs:248:11 | LL | match (&mut em.clone(),) { | ^^^^^^^^^^^^^^^^^^ LL | LL | (&mut Either::One(_t),) => (), | -- data moved here +LL | LL | (&mut Either::Two(_t),) => (), | -- ...and here | = note: move occurs because these variables have types that don't implement the `Copy` trait +help: consider borrowing the pattern binding + | +LL | (&mut Either::One(ref _t),) => (), + | +++ +help: consider borrowing the pattern binding + | +LL | (&mut Either::Two(ref _t),) => (), + | +++ error[E0507]: cannot move out of a shared reference - --> $DIR/simple.rs:288:18 + --> $DIR/simple.rs:261:18 | LL | let &X(_t) = &x; - | ------ ^^ - | | | - | | data moved here - | | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait - | help: consider removing the `&`: `X(_t)` + | -- ^^ + | | + | data moved here + | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - let &X(_t) = &x; +LL + let X(_t) = &x; + | error[E0507]: cannot move out of a shared reference - --> $DIR/simple.rs:292:31 + --> $DIR/simple.rs:264:31 | LL | if let &Either::One(_t) = &e { } - | ---------------- ^^ - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&`: `Either::One(_t)` + | -- ^^ + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - if let &Either::One(_t) = &e { } +LL + if let Either::One(_t) = &e { } + | error[E0507]: cannot move out of a shared reference - --> $DIR/simple.rs:296:34 + --> $DIR/simple.rs:267:34 | LL | while let &Either::One(_t) = &e { } - | ---------------- ^^ - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&`: `Either::One(_t)` + | -- ^^ + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - while let &Either::One(_t) = &e { } +LL + while let Either::One(_t) = &e { } + | error[E0507]: cannot move out of a shared reference - --> $DIR/simple.rs:300:11 + --> $DIR/simple.rs:270:11 | LL | match &e { | ^^ @@ -514,72 +749,95 @@ LL | &Either::One(_t) | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait | -help: consider removing the `&` +help: consider removing the borrow | -LL ~ Either::One(_t) -LL + -LL + -LL ~ | &Either::Two(_t) => (), +LL - &Either::One(_t) +LL + Either::One(_t) | error[E0507]: cannot move out of a shared reference - --> $DIR/simple.rs:308:11 + --> $DIR/simple.rs:277:11 | LL | match &e { | ^^ LL | LL | &Either::One(_t) => (), - | ---------------- - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&`: `Either::One(_t)` + | -- + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - &Either::One(_t) => (), +LL + Either::One(_t) => (), + | error[E0507]: cannot move out of a shared reference - --> $DIR/simple.rs:315:11 + --> $DIR/simple.rs:283:11 | LL | match &e { | ^^ LL | LL | &Either::One(_t) => (), - | ---------------- - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&`: `Either::One(_t)` + | -- + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - &Either::One(_t) => (), +LL + Either::One(_t) => (), + | error[E0507]: cannot move out of a mutable reference - --> $DIR/simple.rs:323:22 + --> $DIR/simple.rs:290:22 | LL | let &mut X(_t) = &mut xm; - | ---------- ^^^^^^^ - | | | - | | data moved here - | | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait - | help: consider removing the `&mut`: `X(_t)` + | -- ^^^^^^^ + | | + | data moved here + | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider removing the mutable borrow + | +LL - let &mut X(_t) = &mut xm; +LL + let X(_t) = &mut xm; + | error[E0507]: cannot move out of a mutable reference - --> $DIR/simple.rs:327:35 + --> $DIR/simple.rs:293:35 | LL | if let &mut Either::One(_t) = &mut em { } - | -------------------- ^^^^^^^ - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&mut`: `Either::One(_t)` + | -- ^^^^^^^ + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the mutable borrow + | +LL - if let &mut Either::One(_t) = &mut em { } +LL + if let Either::One(_t) = &mut em { } + | error[E0507]: cannot move out of a mutable reference - --> $DIR/simple.rs:331:38 + --> $DIR/simple.rs:296:38 | LL | while let &mut Either::One(_t) = &mut em { } - | -------------------- ^^^^^^^ - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&mut`: `Either::One(_t)` + | -- ^^^^^^^ + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the mutable borrow + | +LL - while let &mut Either::One(_t) = &mut em { } +LL + while let Either::One(_t) = &mut em { } + | error[E0507]: cannot move out of a mutable reference - --> $DIR/simple.rs:335:11 + --> $DIR/simple.rs:299:11 | LL | match &mut em { | ^^^^^^^ @@ -590,91 +848,138 @@ LL | &mut Either::One(_t) | data moved here | move occurs because `_t` has type `X`, which does not implement the `Copy` trait | -help: consider removing the `&mut` +help: consider removing the mutable borrow | -LL ~ Either::One(_t) -LL + -LL + -LL ~ | &mut Either::Two(_t) => (), +LL - &mut Either::One(_t) +LL + Either::One(_t) | error[E0507]: cannot move out of a mutable reference - --> $DIR/simple.rs:343:11 + --> $DIR/simple.rs:306:11 | LL | match &mut em { | ^^^^^^^ LL | LL | &mut Either::One(_t) => (), - | -------------------- - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&mut`: `Either::One(_t)` + | -- + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the mutable borrow + | +LL - &mut Either::One(_t) => (), +LL + Either::One(_t) => (), + | error[E0507]: cannot move out of a mutable reference - --> $DIR/simple.rs:350:11 + --> $DIR/simple.rs:312:11 | LL | match &mut em { | ^^^^^^^ LL | LL | &mut Either::One(_t) => (), - | -------------------- - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&mut`: `Either::One(_t)` + | -- + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the mutable borrow + | +LL - &mut Either::One(_t) => (), +LL + Either::One(_t) => (), + | error[E0507]: cannot move out of a mutable reference - --> $DIR/simple.rs:357:11 + --> $DIR/simple.rs:318:11 | LL | match &mut em { | ^^^^^^^ LL | LL | &mut Either::One(_t) => (), - | -------------------- - | | | - | | data moved here - | | move occurs because `_t` has type `X`, which does not implement the `Copy` trait - | help: consider removing the `&mut`: `Either::One(_t)` + | -- + | | + | data moved here + | move occurs because `_t` has type `X`, which does not implement the `Copy` trait + | +help: consider removing the mutable borrow + | +LL - &mut Either::One(_t) => (), +LL + Either::One(_t) => (), + | error[E0507]: cannot move out of a shared reference - --> $DIR/simple.rs:202:11 + --> $DIR/simple.rs:174:11 | LL | fn f1(&X(_t): &X) { } | ^^^--^ - | | | - | | data moved here - | | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait - | help: consider removing the `&`: `X(_t)` + | | + | data moved here + | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - fn f1(&X(_t): &X) { } +LL + fn f1(X(_t): &X) { } + | error[E0507]: cannot move out of a mutable reference - --> $DIR/simple.rs:249:11 + --> $DIR/simple.rs:212:11 | LL | fn f2(&mut X(_t): &mut X) { } | ^^^^^^^--^ - | | | - | | data moved here - | | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait - | help: consider removing the `&mut`: `X(_t)` + | | + | data moved here + | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider removing the mutable borrow + | +LL - fn f2(&mut X(_t): &mut X) { } +LL + fn f2(X(_t): &mut X) { } + | error[E0507]: cannot move out of a shared reference - --> $DIR/simple.rs:269:11 + --> $DIR/simple.rs:235:11 | LL | fn f3((&X(_t),): (&X,)) { } | ^^^^--^^^ | | | data moved here | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | fn f3((&X(ref _t),): (&X,)) { } + | +++ error[E0507]: cannot move out of a mutable reference - --> $DIR/simple.rs:283:11 + --> $DIR/simple.rs:255:11 | LL | fn f4((&mut X(_t),): (&mut X,)) { } | ^^^^^^^^--^^^ | | | data moved here | move occurs because `_t` has type `Y`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | fn f4((&mut X(ref _t),): (&mut X,)) { } + | +++ + +error[E0507]: cannot move out of `a.a` as enum variant `Some` which is behind a shared reference + --> $DIR/simple.rs:331:20 + | +LL | let Some(_s) = a.a else { + | -- ^^^ + | | + | data moved here + | move occurs because `_s` has type `String`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | let Some(ref _s) = a.a else { + | +++ -error: aborting due to 60 previous errors +error: aborting due to 61 previous errors For more information about this error, try `rustc --explain E0507`. diff --git a/src/test/ui/suggestions/expected-boxed-future-isnt-pinned.stderr b/src/test/ui/suggestions/expected-boxed-future-isnt-pinned.stderr index 34ff59a9bb0..b1e04dab8f6 100644 --- a/src/test/ui/suggestions/expected-boxed-future-isnt-pinned.stderr +++ b/src/test/ui/suggestions/expected-boxed-future-isnt-pinned.stderr @@ -41,9 +41,6 @@ LL | Pin::new(x) found type parameter `F` note: associated function defined here --> $SRC_DIR/core/src/pin.rs:LL:COL - | -LL | pub const fn new(pointer: P) -> Pin<P> { - | ^^^ error[E0277]: `dyn Future<Output = i32> + Send` cannot be unpinned --> $DIR/expected-boxed-future-isnt-pinned.rs:19:14 @@ -56,9 +53,6 @@ LL | Pin::new(x) = note: consider using `Box::pin` note: required by a bound in `Pin::<P>::new` --> $SRC_DIR/core/src/pin.rs:LL:COL - | -LL | impl<P: Deref<Target: Unpin>> Pin<P> { - | ^^^^^ required by this bound in `Pin::<P>::new` error[E0277]: `dyn Future<Output = i32> + Send` cannot be unpinned --> $DIR/expected-boxed-future-isnt-pinned.rs:24:14 @@ -71,9 +65,6 @@ LL | Pin::new(Box::new(x)) = note: consider using `Box::pin` note: required by a bound in `Pin::<P>::new` --> $SRC_DIR/core/src/pin.rs:LL:COL - | -LL | impl<P: Deref<Target: Unpin>> Pin<P> { - | ^^^^^ required by this bound in `Pin::<P>::new` error[E0308]: mismatched types --> $DIR/expected-boxed-future-isnt-pinned.rs:28:5 @@ -90,9 +81,6 @@ LL | | } found `async` block `[async block@$DIR/expected-boxed-future-isnt-pinned.rs:28:5: 30:6]` note: function defined here --> $SRC_DIR/core/src/future/mod.rs:LL:COL - | -LL | pub const fn identity_future<O, Fut: Future<Output = O>>(f: Fut) -> Fut { - | ^^^^^^^^^^^^^^^ help: you need to pin and box this expression | LL ~ Box::pin(async { diff --git a/src/test/ui/suggestions/for-i-in-vec.stderr b/src/test/ui/suggestions/for-i-in-vec.stderr index 88be9e30a76..c5b81e6b871 100644 --- a/src/test/ui/suggestions/for-i-in-vec.stderr +++ b/src/test/ui/suggestions/for-i-in-vec.stderr @@ -7,11 +7,8 @@ LL | for _ in self.v { | `self.v` moved due to this implicit call to `.into_iter()` | move occurs because `self.v` has type `Vec<u32>`, which does not implement the `Copy` trait | -note: this function takes ownership of the receiver `self`, which moves `self.v` +note: `into_iter` takes ownership of the receiver `self`, which moves `self.v` --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | fn into_iter(self) -> Self::IntoIter; - | ^^^^ help: consider iterating over a slice of the `Vec<u32>`'s content to avoid moving into the `for` loop | LL | for _ in &self.v { @@ -40,11 +37,8 @@ LL | for loader in *LOADERS { | value moved due to this implicit call to `.into_iter()` | move occurs because value has type `Vec<&u8>`, which does not implement the `Copy` trait | -note: this function takes ownership of the receiver `self`, which moves value +note: `into_iter` takes ownership of the receiver `self`, which moves value --> $SRC_DIR/core/src/iter/traits/collect.rs:LL:COL - | -LL | fn into_iter(self) -> Self::IntoIter; - | ^^^^ help: consider iterating over a slice of the `Vec<&u8>`'s content to avoid moving into the `for` loop | LL | for loader in &*LOADERS { diff --git a/src/test/ui/suggestions/imm-ref-trait-object.stderr b/src/test/ui/suggestions/imm-ref-trait-object.stderr index 42ca3a78d8f..7791b308d5d 100644 --- a/src/test/ui/suggestions/imm-ref-trait-object.stderr +++ b/src/test/ui/suggestions/imm-ref-trait-object.stderr @@ -3,11 +3,9 @@ error: the `min` method cannot be invoked on a trait object | LL | t.min().unwrap() | ^^^ + --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL | - ::: $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL - | -LL | Self: Sized, - | ----- this has a `Sized` requirement + = note: this has a `Sized` requirement | = note: you need `&mut dyn Iterator<Item = &u64>` instead of `&dyn Iterator<Item = &u64>` diff --git a/src/test/ui/suggestions/import-trait-for-method-call.stderr b/src/test/ui/suggestions/import-trait-for-method-call.stderr index bac8de79872..f159b51a269 100644 --- a/src/test/ui/suggestions/import-trait-for-method-call.stderr +++ b/src/test/ui/suggestions/import-trait-for-method-call.stderr @@ -3,11 +3,9 @@ error[E0599]: no method named `finish` found for struct `DefaultHasher` in the c | LL | h.finish() | ^^^^^^ method not found in `DefaultHasher` + --> $SRC_DIR/core/src/hash/mod.rs:LL:COL | - ::: $SRC_DIR/core/src/hash/mod.rs:LL:COL - | -LL | fn finish(&self) -> u64; - | ------ the method is available for `DefaultHasher` here + = note: the method is available for `DefaultHasher` here | = help: items from traits can only be used if the trait is in scope help: the following trait is implemented but not in scope; perhaps add a `use` for it: diff --git a/src/test/ui/suggestions/issue-104287.stderr b/src/test/ui/suggestions/issue-104287.stderr index 4b302dd6509..79812a2985e 100644 --- a/src/test/ui/suggestions/issue-104287.stderr +++ b/src/test/ui/suggestions/issue-104287.stderr @@ -11,12 +11,6 @@ LL | simd_gt::<()>(x); | ^^^^^^^------ help: remove these generics | | | expected 0 generic arguments - | -note: associated function defined here, with 0 generic parameters - --> $SRC_DIR/core/src/../../portable-simd/crates/core_simd/src/ord.rs:LL:COL - | -LL | fn simd_gt(self, other: Self) -> Self::Mask; - | ^^^^^^^ error[E0425]: cannot find function `simd_gt` in this scope --> $DIR/issue-104287.rs:6:5 diff --git a/src/test/ui/suggestions/issue-104327.rs b/src/test/ui/suggestions/issue-104327.rs new file mode 100644 index 00000000000..dd621ae7100 --- /dev/null +++ b/src/test/ui/suggestions/issue-104327.rs @@ -0,0 +1,12 @@ +trait Bar {} + +trait Foo { + fn f() {} +} + +impl Foo for dyn Bar {} + +fn main() { + Foo::f(); + //~^ ERROR cannot call associated function on trait without specifying the corresponding `impl` type +} diff --git a/src/test/ui/suggestions/issue-104327.stderr b/src/test/ui/suggestions/issue-104327.stderr new file mode 100644 index 00000000000..acec3a55d52 --- /dev/null +++ b/src/test/ui/suggestions/issue-104327.stderr @@ -0,0 +1,17 @@ +error[E0790]: cannot call associated function on trait without specifying the corresponding `impl` type + --> $DIR/issue-104327.rs:10:5 + | +LL | fn f() {} + | --------- `Foo::f` defined here +... +LL | Foo::f(); + | ^^^^^^ cannot call associated function of trait + | +help: use the fully-qualified path to the only available implementation + | +LL | <(dyn Bar + 'static) as Foo>::f(); + | +++++++++++++++++++++++ + + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0790`. diff --git a/src/test/ui/suggestions/issue-104328.rs b/src/test/ui/suggestions/issue-104328.rs new file mode 100644 index 00000000000..c3707baf79f --- /dev/null +++ b/src/test/ui/suggestions/issue-104328.rs @@ -0,0 +1,12 @@ +#![feature(object_safe_for_dispatch)] + +trait Foo { + fn f() {} +} + +impl Foo for dyn Sized {} + +fn main() { + Foo::f(); + //~^ ERROR cannot call associated function on trait without specifying the corresponding `impl` type +} diff --git a/src/test/ui/suggestions/issue-104328.stderr b/src/test/ui/suggestions/issue-104328.stderr new file mode 100644 index 00000000000..b31b84781ba --- /dev/null +++ b/src/test/ui/suggestions/issue-104328.stderr @@ -0,0 +1,17 @@ +error[E0790]: cannot call associated function on trait without specifying the corresponding `impl` type + --> $DIR/issue-104328.rs:10:5 + | +LL | fn f() {} + | --------- `Foo::f` defined here +... +LL | Foo::f(); + | ^^^^^^ cannot call associated function of trait + | +help: use the fully-qualified path to the only available implementation + | +LL | <(dyn Sized + 'static) as Foo>::f(); + | +++++++++++++++++++++++++ + + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0790`. diff --git a/src/test/ui/suggestions/issue-62843.stderr b/src/test/ui/suggestions/issue-62843.stderr index 62f0943d4c9..b6e271de807 100644 --- a/src/test/ui/suggestions/issue-62843.stderr +++ b/src/test/ui/suggestions/issue-62843.stderr @@ -10,9 +10,6 @@ LL | println!("{:?}", line.find(pattern)); = note: required for `String` to implement `Pattern<'_>` note: required by a bound in `core::str::<impl str>::find` --> $SRC_DIR/core/src/str/mod.rs:LL:COL - | -LL | pub fn find<'a, P: Pattern<'a>>(&'a self, pat: P) -> Option<usize> { - | ^^^^^^^^^^^ required by this bound in `core::str::<impl str>::find` help: consider borrowing here | LL | println!("{:?}", line.find(&pattern)); diff --git a/src/test/ui/suggestions/issue-71394-no-from-impl.stderr b/src/test/ui/suggestions/issue-71394-no-from-impl.stderr index 684db23e135..a5e6f5b5ffc 100644 --- a/src/test/ui/suggestions/issue-71394-no-from-impl.stderr +++ b/src/test/ui/suggestions/issue-71394-no-from-impl.stderr @@ -1,10 +1,8 @@ error[E0277]: the trait bound `&[i8]: From<&[u8]>` is not satisfied - --> $DIR/issue-71394-no-from-impl.rs:3:20 + --> $DIR/issue-71394-no-from-impl.rs:3:25 | LL | let _: &[i8] = data.into(); - | ^^^^ ---- required by a bound introduced by this call - | | - | the trait `From<&[u8]>` is not implemented for `&[i8]` + | ^^^^ the trait `From<&[u8]>` is not implemented for `&[i8]` | = help: the following other types implement trait `From<T>`: <[T; LANES] as From<Simd<T, LANES>>> diff --git a/src/test/ui/suggestions/issue-89064.stderr b/src/test/ui/suggestions/issue-89064.stderr index 8b2a3881628..93d8da226c8 100644 --- a/src/test/ui/suggestions/issue-89064.stderr +++ b/src/test/ui/suggestions/issue-89064.stderr @@ -62,11 +62,6 @@ error[E0107]: this associated function takes 0 generic arguments but 1 generic a LL | let _ = 42.into::<Option<_>>(); | ^^^^ expected 0 generic arguments | -note: associated function defined here, with 0 generic parameters - --> $SRC_DIR/core/src/convert/mod.rs:LL:COL - | -LL | fn into(self) -> T; - | ^^^^ help: consider moving this generic argument to the `Into` trait, which takes up to 1 argument | LL | let _ = Into::<Option<_>>::into(42); diff --git a/src/test/ui/suggestions/mut-borrow-needed-by-trait.stderr b/src/test/ui/suggestions/mut-borrow-needed-by-trait.stderr index d121932c842..6910b77d9bc 100644 --- a/src/test/ui/suggestions/mut-borrow-needed-by-trait.stderr +++ b/src/test/ui/suggestions/mut-borrow-needed-by-trait.stderr @@ -9,9 +9,6 @@ LL | let fp = BufWriter::new(fp); = note: `std::io::Write` is implemented for `&mut dyn std::io::Write`, but not for `&dyn std::io::Write` note: required by a bound in `BufWriter::<W>::new` --> $SRC_DIR/std/src/io/buffered/bufwriter.rs:LL:COL - | -LL | impl<W: Write> BufWriter<W> { - | ^^^^^ required by this bound in `BufWriter::<W>::new` error[E0277]: the trait bound `&dyn std::io::Write: std::io::Write` is not satisfied --> $DIR/mut-borrow-needed-by-trait.rs:17:14 @@ -22,20 +19,15 @@ LL | let fp = BufWriter::new(fp); = note: `std::io::Write` is implemented for `&mut dyn std::io::Write`, but not for `&dyn std::io::Write` note: required by a bound in `BufWriter` --> $SRC_DIR/std/src/io/buffered/bufwriter.rs:LL:COL - | -LL | pub struct BufWriter<W: Write> { - | ^^^^^ required by this bound in `BufWriter` -error[E0599]: the method `write_fmt` exists for struct `BufWriter<&dyn std::io::Write>`, but its trait bounds were not satisfied +error[E0599]: the method `write_fmt` exists for struct `BufWriter<&dyn Write>`, but its trait bounds were not satisfied --> $DIR/mut-borrow-needed-by-trait.rs:21:5 | LL | writeln!(fp, "hello world").unwrap(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ method cannot be called on `BufWriter<&dyn std::io::Write>` due to unsatisfied trait bounds - | - ::: $SRC_DIR/std/src/io/buffered/bufwriter.rs:LL:COL + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ method cannot be called on `BufWriter<&dyn Write>` due to unsatisfied trait bounds + --> $SRC_DIR/std/src/io/buffered/bufwriter.rs:LL:COL | -LL | pub struct BufWriter<W: Write> { - | ------------------------------ doesn't satisfy `BufWriter<&dyn std::io::Write>: std::io::Write` + = note: doesn't satisfy `BufWriter<&dyn std::io::Write>: std::io::Write` | = note: the following trait bounds were not satisfied: `&dyn std::io::Write: std::io::Write` diff --git a/src/test/ui/suggestions/option-content-move-from-tuple-match.stderr b/src/test/ui/suggestions/option-content-move-from-tuple-match.stderr index debb8cabaea..97d05d9dcff 100644 --- a/src/test/ui/suggestions/option-content-move-from-tuple-match.stderr +++ b/src/test/ui/suggestions/option-content-move-from-tuple-match.stderr @@ -9,6 +9,11 @@ LL | (None, &c) => &c.unwrap(), | | | data moved here | move occurs because `c` has type `Option<String>`, which does not implement the `Copy` trait + | +help: consider borrowing the pattern binding + | +LL | (None, &ref c) => &c.unwrap(), + | +++ error: aborting due to previous error diff --git a/src/test/ui/suggestions/option-content-move.stderr b/src/test/ui/suggestions/option-content-move.stderr index a6f1ebc975f..3e0271d0257 100644 --- a/src/test/ui/suggestions/option-content-move.stderr +++ b/src/test/ui/suggestions/option-content-move.stderr @@ -7,11 +7,8 @@ LL | if selection.1.unwrap().contains(selection.0) { | help: consider calling `.as_ref()` or `.as_mut()` to borrow the type's contents | move occurs because `selection.1` has type `Option<String>`, which does not implement the `Copy` trait | -note: this function takes ownership of the receiver `self`, which moves `selection.1` +note: `Option::<T>::unwrap` takes ownership of the receiver `self`, which moves `selection.1` --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | pub const fn unwrap(self) -> T { - | ^^^^ error[E0507]: cannot move out of `selection.1` which is behind a shared reference --> $DIR/option-content-move.rs:27:20 @@ -22,11 +19,8 @@ LL | if selection.1.unwrap().contains(selection.0) { | help: consider calling `.as_ref()` or `.as_mut()` to borrow the type's contents | move occurs because `selection.1` has type `Result<String, String>`, which does not implement the `Copy` trait | -note: this function takes ownership of the receiver `self`, which moves `selection.1` +note: `Result::<T, E>::unwrap` takes ownership of the receiver `self`, which moves `selection.1` --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | pub fn unwrap(self) -> T - | ^^^^ error: aborting due to 2 previous errors diff --git a/src/test/ui/suggestions/restrict-type-not-param.stderr b/src/test/ui/suggestions/restrict-type-not-param.stderr index e7d9c5ecbe4..5434472ceec 100644 --- a/src/test/ui/suggestions/restrict-type-not-param.stderr +++ b/src/test/ui/suggestions/restrict-type-not-param.stderr @@ -11,11 +11,8 @@ note: an implementation of `Add<_>` might be missing for `Wrapper<T>` | LL | struct Wrapper<T>(T); | ^^^^^^^^^^^^^^^^^ must implement `Add<_>` -note: the following trait must be implemented +note: the trait `Add` must be implemented --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | pub trait Add<Rhs = Self> { - | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider introducing a `where` clause, but there might be an alternative better way to express this requirement | LL | fn qux<T>(a: Wrapper<T>, b: T) -> T where Wrapper<T>: Add<T, Output = T> { diff --git a/src/test/ui/suggestions/sugg-else-for-closure.stderr b/src/test/ui/suggestions/sugg-else-for-closure.stderr index 55a0eee1817..da4db46aad3 100644 --- a/src/test/ui/suggestions/sugg-else-for-closure.stderr +++ b/src/test/ui/suggestions/sugg-else-for-closure.stderr @@ -10,9 +10,6 @@ LL | let _s = y.unwrap_or(|| x.split('.').nth(1).unwrap()); found closure `[closure@$DIR/sugg-else-for-closure.rs:6:26: 6:28]` note: associated function defined here --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | pub const fn unwrap_or(self, default: T) -> T - | ^^^^^^^^^ help: try calling `unwrap_or_else` instead | LL | let _s = y.unwrap_or_else(|| x.split('.').nth(1).unwrap()); diff --git a/src/test/ui/suggestions/suggest-change-mut.stderr b/src/test/ui/suggestions/suggest-change-mut.stderr index 889b11a7410..d194afeaf93 100644 --- a/src/test/ui/suggestions/suggest-change-mut.stderr +++ b/src/test/ui/suggestions/suggest-change-mut.stderr @@ -8,9 +8,6 @@ LL | let mut stream_reader = BufReader::new(&stream); | note: required by a bound in `BufReader::<R>::new` --> $SRC_DIR/std/src/io/buffered/bufreader.rs:LL:COL - | -LL | impl<R: Read> BufReader<R> { - | ^^^^ required by this bound in `BufReader::<R>::new` help: consider removing the leading `&`-reference | LL - let mut stream_reader = BufReader::new(&stream); @@ -30,11 +27,9 @@ error[E0599]: the method `read_until` exists for struct `BufReader<&T>`, but its | LL | stream_reader.read_until(b'\n', &mut buffer).expect("Reading into buffer failed"); | ^^^^^^^^^^ method cannot be called on `BufReader<&T>` due to unsatisfied trait bounds + --> $SRC_DIR/std/src/io/buffered/bufreader.rs:LL:COL | - ::: $SRC_DIR/std/src/io/buffered/bufreader.rs:LL:COL - | -LL | pub struct BufReader<R> { - | ----------------------- doesn't satisfy `BufReader<&T>: BufRead` + = note: doesn't satisfy `BufReader<&T>: BufRead` | = note: the following trait bounds were not satisfied: `&T: std::io::Read` diff --git a/src/test/ui/suggestions/suggest-tryinto-edition-change.stderr b/src/test/ui/suggestions/suggest-tryinto-edition-change.stderr index 3d1f2492360..018083f9e03 100644 --- a/src/test/ui/suggestions/suggest-tryinto-edition-change.stderr +++ b/src/test/ui/suggestions/suggest-tryinto-edition-change.stderr @@ -52,11 +52,9 @@ error[E0599]: no method named `try_into` found for type `i32` in the current sco | LL | let _i: i16 = 0_i32.try_into().unwrap(); | ^^^^^^^^ method not found in `i32` + --> $SRC_DIR/core/src/convert/mod.rs:LL:COL | - ::: $SRC_DIR/core/src/convert/mod.rs:LL:COL - | -LL | fn try_into(self) -> Result<T, Self::Error>; - | -------- the method is available for `i32` here + = note: the method is available for `i32` here | = help: items from traits can only be used if the trait is in scope = note: 'std::convert::TryInto' is included in the prelude starting in Edition 2021 diff --git a/src/test/ui/suggestions/type-ascription-instead-of-path-in-type.stderr b/src/test/ui/suggestions/type-ascription-instead-of-path-in-type.stderr index 951ff23d635..fcff02e09db 100644 --- a/src/test/ui/suggestions/type-ascription-instead-of-path-in-type.stderr +++ b/src/test/ui/suggestions/type-ascription-instead-of-path-in-type.stderr @@ -24,11 +24,6 @@ error[E0107]: this struct takes at least 1 generic argument but 0 generic argume LL | let _: Vec<A:B> = A::B; | ^^^ expected at least 1 generic argument | -note: struct defined here, with at least 1 generic parameter: `T` - --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL - | -LL | pub struct Vec<T, #[unstable(feature = "allocator_api", issue = "32838")] A: Allocator = Global> { - | ^^^ - help: add missing generic argument | LL | let _: Vec<T, A:B> = A::B; diff --git a/src/test/ui/traits/alias/generic-default-in-dyn.stderr b/src/test/ui/traits/alias/generic-default-in-dyn.stderr index 76a068e864a..0d3f794aa0f 100644 --- a/src/test/ui/traits/alias/generic-default-in-dyn.stderr +++ b/src/test/ui/traits/alias/generic-default-in-dyn.stderr @@ -12,11 +12,9 @@ error[E0393]: the type parameter `Rhs` must be explicitly specified | LL | struct Foo<T>(dyn SendEqAlias<T>); | ^^^^^^^^^^^^^^ missing reference to `Rhs` + --> $SRC_DIR/core/src/cmp.rs:LL:COL | - ::: $SRC_DIR/core/src/cmp.rs:LL:COL - | -LL | pub trait PartialEq<Rhs: ?Sized = Self> { - | --------------------------------------- type parameter `Rhs` must be specified for this + = note: type parameter `Rhs` must be specified for this | = note: because of the default `Self` reference, type parameters must be specified on object types @@ -25,11 +23,9 @@ error[E0393]: the type parameter `Rhs` must be explicitly specified | LL | struct Bar<T>(dyn SendEqAlias<T>, T); | ^^^^^^^^^^^^^^ missing reference to `Rhs` + --> $SRC_DIR/core/src/cmp.rs:LL:COL | - ::: $SRC_DIR/core/src/cmp.rs:LL:COL - | -LL | pub trait PartialEq<Rhs: ?Sized = Self> { - | --------------------------------------- type parameter `Rhs` must be specified for this + = note: type parameter `Rhs` must be specified for this | = note: because of the default `Self` reference, type parameters must be specified on object types diff --git a/src/test/ui/traits/alias/object-fail.stderr b/src/test/ui/traits/alias/object-fail.stderr index 325bc6d2808..048a150df8c 100644 --- a/src/test/ui/traits/alias/object-fail.stderr +++ b/src/test/ui/traits/alias/object-fail.stderr @@ -7,8 +7,7 @@ LL | let _: &dyn EqAlias = &123; note: for a trait to be "object safe" it needs to allow building a vtable to allow the call to be resolvable dynamically; for more information visit <https://doc.rust-lang.org/reference/items/traits.html#object-safety> --> $SRC_DIR/core/src/cmp.rs:LL:COL | -LL | pub trait Eq: PartialEq<Self> { - | ^^^^^^^^^^^^^^^ the trait cannot be made into an object because it uses `Self` as a type parameter + = note: the trait cannot be made into an object because it uses `Self` as a type parameter error[E0191]: the value of the associated type `Item` (from trait `Iterator`) must be specified --> $DIR/object-fail.rs:9:17 diff --git a/src/test/ui/traits/assoc-type-in-superbad.rs b/src/test/ui/traits/assoc-type-in-superbad.rs index d7d6241ef70..65340b2a209 100644 --- a/src/test/ui/traits/assoc-type-in-superbad.rs +++ b/src/test/ui/traits/assoc-type-in-superbad.rs @@ -10,7 +10,7 @@ pub trait Foo: Iterator<Item = <Self as Foo>::Key> { impl Foo for IntoIter<i32> { type Key = u32; - //~^ ERROR expected `std::vec::IntoIter<i32>` to be an iterator that yields `u32`, but it yields `i32` + //~^ ERROR expected `IntoIter<i32>` to be an iterator that yields `u32`, but it yields `i32` } fn main() {} diff --git a/src/test/ui/traits/assoc-type-in-superbad.stderr b/src/test/ui/traits/assoc-type-in-superbad.stderr index 3e2d9d9038a..7fa1d2c2eed 100644 --- a/src/test/ui/traits/assoc-type-in-superbad.stderr +++ b/src/test/ui/traits/assoc-type-in-superbad.stderr @@ -1,4 +1,4 @@ -error[E0271]: expected `std::vec::IntoIter<i32>` to be an iterator that yields `u32`, but it yields `i32` +error[E0271]: expected `IntoIter<i32>` to be an iterator that yields `u32`, but it yields `i32` --> $DIR/assoc-type-in-superbad.rs:12:16 | LL | type Key = u32; diff --git a/src/test/ui/traits/associated_type_bound/assoc_type_bound_with_struct.stderr b/src/test/ui/traits/associated_type_bound/assoc_type_bound_with_struct.stderr index 9ca446a0a89..5be33498641 100644 --- a/src/test/ui/traits/associated_type_bound/assoc_type_bound_with_struct.stderr +++ b/src/test/ui/traits/associated_type_bound/assoc_type_bound_with_struct.stderr @@ -9,11 +9,9 @@ error[E0404]: expected trait, found struct `String` | LL | struct Foo<T> where T: Bar, <T as Bar>::Baz: String { | ^^^^^^ not a trait + --> $SRC_DIR/alloc/src/string.rs:LL:COL | - ::: $SRC_DIR/alloc/src/string.rs:LL:COL - | -LL | pub trait ToString { - | ------------------ similarly named trait `ToString` defined here + = note: similarly named trait `ToString` defined here | help: constrain the associated type to `String` | @@ -29,11 +27,9 @@ error[E0404]: expected trait, found struct `String` | LL | struct Qux<'a, T> where T: Bar, <&'a T as Bar>::Baz: String { | ^^^^^^ not a trait + --> $SRC_DIR/alloc/src/string.rs:LL:COL | - ::: $SRC_DIR/alloc/src/string.rs:LL:COL - | -LL | pub trait ToString { - | ------------------ similarly named trait `ToString` defined here + = note: similarly named trait `ToString` defined here | help: constrain the associated type to `String` | @@ -49,11 +45,9 @@ error[E0404]: expected trait, found struct `String` | LL | fn foo<T: Bar>(_: T) where <T as Bar>::Baz: String { | ^^^^^^ not a trait + --> $SRC_DIR/alloc/src/string.rs:LL:COL | - ::: $SRC_DIR/alloc/src/string.rs:LL:COL - | -LL | pub trait ToString { - | ------------------ similarly named trait `ToString` defined here + = note: similarly named trait `ToString` defined here | help: constrain the associated type to `String` | @@ -69,11 +63,9 @@ error[E0404]: expected trait, found struct `String` | LL | fn qux<'a, T: Bar>(_: &'a T) where <&'a T as Bar>::Baz: String { | ^^^^^^ not a trait + --> $SRC_DIR/alloc/src/string.rs:LL:COL | - ::: $SRC_DIR/alloc/src/string.rs:LL:COL - | -LL | pub trait ToString { - | ------------------ similarly named trait `ToString` defined here + = note: similarly named trait `ToString` defined here | help: constrain the associated type to `String` | @@ -89,11 +81,9 @@ error[E0404]: expected trait, found struct `String` | LL | fn issue_95327() where <u8 as Unresolved>::Assoc: String {} | ^^^^^^ help: a trait with a similar name exists: `ToString` + --> $SRC_DIR/alloc/src/string.rs:LL:COL | - ::: $SRC_DIR/alloc/src/string.rs:LL:COL - | -LL | pub trait ToString { - | ------------------ similarly named trait `ToString` defined here + = note: similarly named trait `ToString` defined here error: aborting due to 6 previous errors diff --git a/src/test/ui/traits/bad-sized.stderr b/src/test/ui/traits/bad-sized.stderr index 6f9113fff51..fb9900bc57b 100644 --- a/src/test/ui/traits/bad-sized.stderr +++ b/src/test/ui/traits/bad-sized.stderr @@ -18,9 +18,6 @@ LL | let x: Vec<dyn Trait + Sized> = Vec::new(); = help: the trait `Sized` is not implemented for `dyn Trait` note: required by a bound in `Vec` --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL - | -LL | pub struct Vec<T, #[unstable(feature = "allocator_api", issue = "32838")] A: Allocator = Global> { - | ^ required by this bound in `Vec` error[E0277]: the size for values of type `dyn Trait` cannot be known at compilation time --> $DIR/bad-sized.rs:4:37 @@ -31,9 +28,6 @@ LL | let x: Vec<dyn Trait + Sized> = Vec::new(); = help: the trait `Sized` is not implemented for `dyn Trait` note: required by a bound in `Vec::<T>::new` --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL - | -LL | impl<T> Vec<T> { - | ^ required by this bound in `Vec::<T>::new` error[E0277]: the size for values of type `dyn Trait` cannot be known at compilation time --> $DIR/bad-sized.rs:4:37 @@ -44,9 +38,6 @@ LL | let x: Vec<dyn Trait + Sized> = Vec::new(); = help: the trait `Sized` is not implemented for `dyn Trait` note: required by a bound in `Vec` --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL - | -LL | pub struct Vec<T, #[unstable(feature = "allocator_api", issue = "32838")] A: Allocator = Global> { - | ^ required by this bound in `Vec` error: aborting due to 4 previous errors diff --git a/src/test/ui/traits/bound/not-on-bare-trait.stderr b/src/test/ui/traits/bound/not-on-bare-trait.stderr index 8da0b6d6b85..36b08a7d309 100644 --- a/src/test/ui/traits/bound/not-on-bare-trait.stderr +++ b/src/test/ui/traits/bound/not-on-bare-trait.stderr @@ -20,6 +20,10 @@ LL | fn foo(_x: Foo + Send) { | = help: the trait `Sized` is not implemented for `(dyn Foo + Send + 'static)` = help: unsized fn params are gated as an unstable feature +help: you can use `impl Trait` as the argument type + | +LL | fn foo(_x: impl Foo + Send) { + | ++++ help: function arguments must have a statically known size, borrowed types always have a known size | LL | fn foo(_x: &Foo + Send) { diff --git a/src/test/ui/traits/issue-77982.stderr b/src/test/ui/traits/issue-77982.stderr index b6a04585583..0b57a8212bd 100644 --- a/src/test/ui/traits/issue-77982.stderr +++ b/src/test/ui/traits/issue-77982.stderr @@ -12,9 +12,6 @@ LL | opts.get(opt.as_ref()); where T: ?Sized; note: required by a bound in `HashMap::<K, V, S>::get` --> $SRC_DIR/std/src/collections/hash/map.rs:LL:COL - | -LL | K: Borrow<Q>, - | ^^^^^^^^^ required by this bound in `HashMap::<K, V, S>::get` help: consider specifying the generic argument | LL | opts.get::<Q>(opt.as_ref()); @@ -46,7 +43,15 @@ LL | let ips: Vec<_> = (0..100_000).map(|_| u32::from(0u32.into())).collect( | | | required by a bound introduced by this call | - = note: cannot satisfy `u32: From<_>` + = note: multiple `impl`s satisfying `u32: From<_>` found in the following crates: `core`, `std`: + - impl From<Ipv4Addr> for u32; + - impl From<NonZeroU32> for u32; + - impl From<bool> for u32; + - impl From<char> for u32; + - impl From<u16> for u32; + - impl From<u8> for u32; + - impl<T> From<!> for T; + - impl<T> From<T> for T; help: try using a fully qualified path to specify the expected types | LL | let ips: Vec<_> = (0..100_000).map(|_| u32::from(<u32 as Into<T>>::into(0u32))).collect(); diff --git a/src/test/ui/traits/issue-85735.stderr b/src/test/ui/traits/issue-85735.stderr index fa280135beb..9e80497ca6e 100644 --- a/src/test/ui/traits/issue-85735.stderr +++ b/src/test/ui/traits/issue-85735.stderr @@ -4,7 +4,14 @@ error[E0283]: type annotations needed: cannot satisfy `T: FnMut<(&'a (),)>` LL | T: FnMut(&'a ()), | ^^^^^^^^^^^^^ | - = note: cannot satisfy `T: FnMut<(&'a (),)>` +note: multiple `impl`s or `where` clauses satisfying `T: FnMut<(&'a (),)>` found + --> $DIR/issue-85735.rs:7:8 + | +LL | T: FnMut(&'a ()), + | ^^^^^^^^^^^^^ +LL | +LL | T: FnMut(&'b ()), + | ^^^^^^^^^^^^^ error: aborting due to previous error diff --git a/src/test/ui/traits/issue-97576.stderr b/src/test/ui/traits/issue-97576.stderr index 146d38d076a..9062a0fab63 100644 --- a/src/test/ui/traits/issue-97576.stderr +++ b/src/test/ui/traits/issue-97576.stderr @@ -1,10 +1,8 @@ error[E0277]: the trait bound `String: From<impl ToString>` is not satisfied - --> $DIR/issue-97576.rs:8:18 + --> $DIR/issue-97576.rs:8:22 | LL | bar: bar.into(), - | ^^^ ---- required by a bound introduced by this call - | | - | the trait `From<impl ToString>` is not implemented for `String` + | ^^^^ the trait `From<impl ToString>` is not implemented for `String` | = note: required for `impl ToString` to implement `Into<String>` diff --git a/src/test/ui/traits/mutual-recursion-issue-75860.stderr b/src/test/ui/traits/mutual-recursion-issue-75860.stderr index 920f66121e0..23e182738f7 100644 --- a/src/test/ui/traits/mutual-recursion-issue-75860.stderr +++ b/src/test/ui/traits/mutual-recursion-issue-75860.stderr @@ -7,9 +7,6 @@ LL | iso(left, right) = help: consider increasing the recursion limit by adding a `#![recursion_limit = "256"]` attribute to your crate (`mutual_recursion_issue_75860`) note: required by a bound in `Option` --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | pub enum Option<T> { - | ^ required by this bound in `Option` error: aborting due to previous error diff --git a/src/test/ui/traits/static-method-generic-inference.stderr b/src/test/ui/traits/static-method-generic-inference.stderr index 5f74d0c3b92..575ace2374e 100644 --- a/src/test/ui/traits/static-method-generic-inference.stderr +++ b/src/test/ui/traits/static-method-generic-inference.stderr @@ -9,8 +9,8 @@ LL | let _f: base::Foo = base::HasNew::new(); | help: use the fully-qualified path to the only available implementation | -LL | let _f: base::Foo = base::<Foo as HasNew>::new(); - | +++++++ + +LL | let _f: base::Foo = <Foo as base::HasNew>::new(); + | +++++++ + error: aborting due to previous error diff --git a/src/test/ui/traits/suggest-deferences/issue-39029.stderr b/src/test/ui/traits/suggest-deferences/issue-39029.stderr index eb2b88059d4..49e20c6a76a 100644 --- a/src/test/ui/traits/suggest-deferences/issue-39029.stderr +++ b/src/test/ui/traits/suggest-deferences/issue-39029.stderr @@ -9,9 +9,6 @@ LL | let _errors = TcpListener::bind(&bad); = note: required for `&NoToSocketAddrs` to implement `ToSocketAddrs` note: required by a bound in `TcpListener::bind` --> $SRC_DIR/std/src/net/tcp.rs:LL:COL - | -LL | pub fn bind<A: ToSocketAddrs>(addr: A) -> io::Result<TcpListener> { - | ^^^^^^^^^^^^^ required by this bound in `TcpListener::bind` help: consider dereferencing here | LL | let _errors = TcpListener::bind(&*bad); diff --git a/src/test/ui/traits/suggest-deferences/root-obligation.stderr b/src/test/ui/traits/suggest-deferences/root-obligation.stderr index 76663ace7ed..1363fb8c47a 100644 --- a/src/test/ui/traits/suggest-deferences/root-obligation.stderr +++ b/src/test/ui/traits/suggest-deferences/root-obligation.stderr @@ -11,9 +11,6 @@ LL | .filter(|c| "aeiou".contains(c)) = note: required for `&char` to implement `Pattern<'_>` note: required by a bound in `core::str::<impl str>::contains` --> $SRC_DIR/core/src/str/mod.rs:LL:COL - | -LL | pub fn contains<'a, P: Pattern<'a>>(&'a self, pat: P) -> bool { - | ^^^^^^^^^^^ required by this bound in `core::str::<impl str>::contains` help: consider dereferencing here | LL | .filter(|c| "aeiou".contains(*c)) diff --git a/src/test/ui/traits/suggest-deferences/suggest-dereferencing-receiver-argument.fixed b/src/test/ui/traits/suggest-deferences/suggest-dereferencing-receiver-argument.fixed new file mode 100644 index 00000000000..ea3d1bf853a --- /dev/null +++ b/src/test/ui/traits/suggest-deferences/suggest-dereferencing-receiver-argument.fixed @@ -0,0 +1,14 @@ +// run-rustfix + +struct TargetStruct; + +impl From<usize> for TargetStruct { + fn from(_unchecked: usize) -> Self { + TargetStruct + } +} + +fn main() { + let a = &3; + let _b: TargetStruct = (*a).into(); //~ ERROR the trait bound `TargetStruct: From<&{integer}>` is not satisfied +} diff --git a/src/test/ui/traits/suggest-deferences/suggest-dereferencing-receiver-argument.rs b/src/test/ui/traits/suggest-deferences/suggest-dereferencing-receiver-argument.rs new file mode 100644 index 00000000000..9eda68027b2 --- /dev/null +++ b/src/test/ui/traits/suggest-deferences/suggest-dereferencing-receiver-argument.rs @@ -0,0 +1,14 @@ +// run-rustfix + +struct TargetStruct; + +impl From<usize> for TargetStruct { + fn from(_unchecked: usize) -> Self { + TargetStruct + } +} + +fn main() { + let a = &3; + let _b: TargetStruct = a.into(); //~ ERROR the trait bound `TargetStruct: From<&{integer}>` is not satisfied +} diff --git a/src/test/ui/traits/suggest-deferences/suggest-dereferencing-receiver-argument.stderr b/src/test/ui/traits/suggest-deferences/suggest-dereferencing-receiver-argument.stderr new file mode 100644 index 00000000000..ede31a2c7bc --- /dev/null +++ b/src/test/ui/traits/suggest-deferences/suggest-dereferencing-receiver-argument.stderr @@ -0,0 +1,15 @@ +error[E0277]: the trait bound `TargetStruct: From<&{integer}>` is not satisfied + --> $DIR/suggest-dereferencing-receiver-argument.rs:13:30 + | +LL | let _b: TargetStruct = a.into(); + | ^^^^ the trait `From<&{integer}>` is not implemented for `TargetStruct` + | + = note: required for `&{integer}` to implement `Into<TargetStruct>` +help: consider dereferencing here + | +LL | let _b: TargetStruct = (*a).into(); + | ++ + + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/src/test/ui/traits/suggest-where-clause.stderr b/src/test/ui/traits/suggest-where-clause.stderr index 9765fbd47ff..44e63b78cce 100644 --- a/src/test/ui/traits/suggest-where-clause.stderr +++ b/src/test/ui/traits/suggest-where-clause.stderr @@ -9,9 +9,6 @@ LL | mem::size_of::<U>(); | note: required by a bound in `std::mem::size_of` --> $SRC_DIR/core/src/mem/mod.rs:LL:COL - | -LL | pub const fn size_of<T>() -> usize { - | ^ required by this bound in `size_of` help: consider removing the `?Sized` bound to make the type parameter `Sized` | LL - fn check<T: Iterator, U: ?Sized>() { @@ -34,9 +31,6 @@ LL | struct Misc<T:?Sized>(T); | ^^^^ note: required by a bound in `std::mem::size_of` --> $SRC_DIR/core/src/mem/mod.rs:LL:COL - | -LL | pub const fn size_of<T>() -> usize { - | ^ required by this bound in `size_of` help: consider removing the `?Sized` bound to make the type parameter `Sized` | LL - fn check<T: Iterator, U: ?Sized>() { @@ -80,9 +74,6 @@ LL | mem::size_of::<[T]>(); = help: the trait `Sized` is not implemented for `[T]` note: required by a bound in `std::mem::size_of` --> $SRC_DIR/core/src/mem/mod.rs:LL:COL - | -LL | pub const fn size_of<T>() -> usize { - | ^ required by this bound in `size_of` error[E0277]: the size for values of type `[&U]` cannot be known at compilation time --> $DIR/suggest-where-clause.rs:31:20 @@ -93,9 +84,6 @@ LL | mem::size_of::<[&U]>(); = help: the trait `Sized` is not implemented for `[&U]` note: required by a bound in `std::mem::size_of` --> $SRC_DIR/core/src/mem/mod.rs:LL:COL - | -LL | pub const fn size_of<T>() -> usize { - | ^ required by this bound in `size_of` error: aborting due to 7 previous errors diff --git a/src/test/ui/transmutability/issue-101739-2.stderr b/src/test/ui/transmutability/issue-101739-2.stderr index 3f83d6583b0..1b3d202590d 100644 --- a/src/test/ui/transmutability/issue-101739-2.stderr +++ b/src/test/ui/transmutability/issue-101739-2.stderr @@ -8,12 +8,6 @@ LL | / ASSUME_LIFETIMES, LL | | ASSUME_VALIDITY, LL | | ASSUME_VISIBILITY, | |_____________________________- help: remove these generic arguments - | -note: trait defined here, with at most 3 generic parameters: `Src`, `Context`, `ASSUME` - --> $SRC_DIR/core/src/mem/transmutability.rs:LL:COL - | -LL | pub unsafe trait BikeshedIntrinsicFrom<Src, Context, const ASSUME: Assume = { Assume::NOTHING }> - | ^^^^^^^^^^^^^^^^^^^^^ --- ------- ------------------------------------------ error: aborting due to previous error diff --git a/src/test/ui/tuple/wrong_argument_ice-3.stderr b/src/test/ui/tuple/wrong_argument_ice-3.stderr index f3a547fa238..fe3712ef839 100644 --- a/src/test/ui/tuple/wrong_argument_ice-3.stderr +++ b/src/test/ui/tuple/wrong_argument_ice-3.stderr @@ -13,9 +13,6 @@ LL | groups.push(new_group, vec![process]); found struct `Vec<String>` note: associated function defined here --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL - | -LL | pub fn push(&mut self, value: T) { - | ^^^^ help: remove the extra argument | LL | groups.push(/* (Vec<String>, Vec<Process>) */); diff --git a/src/test/ui/tuple/wrong_argument_ice.stderr b/src/test/ui/tuple/wrong_argument_ice.stderr index ec07f1e70cf..452413fc516 100644 --- a/src/test/ui/tuple/wrong_argument_ice.stderr +++ b/src/test/ui/tuple/wrong_argument_ice.stderr @@ -6,9 +6,6 @@ LL | self.acc.push_back(self.current_provides, self.current_requires); | note: associated function defined here --> $SRC_DIR/alloc/src/collections/vec_deque/mod.rs:LL:COL - | -LL | pub fn push_back(&mut self, value: T) { - | ^^^^^^^^^ help: wrap these arguments in parentheses to construct a tuple | LL | self.acc.push_back((self.current_provides, self.current_requires)); diff --git a/src/test/ui/type-alias-impl-trait/closures_in_branches.stderr b/src/test/ui/type-alias-impl-trait/closures_in_branches.stderr index 48b7946ea82..9cc15f14a99 100644 --- a/src/test/ui/type-alias-impl-trait/closures_in_branches.stderr +++ b/src/test/ui/type-alias-impl-trait/closures_in_branches.stderr @@ -6,8 +6,8 @@ LL | |x| x.len() | help: consider giving this closure parameter an explicit type | -LL | |x: _| x.len() - | +++ +LL | |x: /* Type */| x.len() + | ++++++++++++ error[E0282]: type annotations needed --> $DIR/closures_in_branches.rs:21:10 @@ -17,8 +17,8 @@ LL | |x| x.len() | help: consider giving this closure parameter an explicit type | -LL | |x: _| x.len() - | +++ +LL | |x: /* Type */| x.len() + | ++++++++++++ error: aborting due to 2 previous errors diff --git a/src/test/ui/type-alias-impl-trait/issue-57961.rs b/src/test/ui/type-alias-impl-trait/issue-57961.rs index 24b3a045856..4aa5966ff25 100644 --- a/src/test/ui/type-alias-impl-trait/issue-57961.rs +++ b/src/test/ui/type-alias-impl-trait/issue-57961.rs @@ -8,7 +8,7 @@ trait Foo { impl Foo for () { type Bar = std::vec::IntoIter<u32>; - //~^ ERROR expected `std::vec::IntoIter<u32>` to be an iterator that yields `X`, but it yields `u32` + //~^ ERROR expected `IntoIter<u32>` to be an iterator that yields `X`, but it yields `u32` } fn incoherent() { diff --git a/src/test/ui/type-alias-impl-trait/issue-57961.stderr b/src/test/ui/type-alias-impl-trait/issue-57961.stderr index fb40895c49f..8d11b488889 100644 --- a/src/test/ui/type-alias-impl-trait/issue-57961.stderr +++ b/src/test/ui/type-alias-impl-trait/issue-57961.stderr @@ -1,4 +1,4 @@ -error[E0271]: expected `std::vec::IntoIter<u32>` to be an iterator that yields `X`, but it yields `u32` +error[E0271]: expected `IntoIter<u32>` to be an iterator that yields `X`, but it yields `u32` --> $DIR/issue-57961.rs:10:16 | LL | type X = impl Sized; diff --git a/src/test/ui/type/ascription/issue-34255-1.stderr b/src/test/ui/type/ascription/issue-34255-1.stderr index 6819d14bb01..fd43e1114c8 100644 --- a/src/test/ui/type/ascription/issue-34255-1.stderr +++ b/src/test/ui/type/ascription/issue-34255-1.stderr @@ -25,11 +25,6 @@ error[E0107]: missing generics for struct `Vec` LL | input_cells: Vec::new() | ^^^ expected at least 1 generic argument | -note: struct defined here, with at least 1 generic parameter: `T` - --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL - | -LL | pub struct Vec<T, #[unstable(feature = "allocator_api", issue = "32838")] A: Allocator = Global> { - | ^^^ - help: add missing generic argument | LL | input_cells: Vec<T>::new() diff --git a/src/test/ui/type/type-annotation-needed.stderr b/src/test/ui/type/type-annotation-needed.stderr index 4af4c22f751..87bba3166be 100644 --- a/src/test/ui/type/type-annotation-needed.stderr +++ b/src/test/ui/type/type-annotation-needed.stderr @@ -10,7 +10,7 @@ note: required by a bound in `foo` | LL | fn foo<T: Into<String>>(x: i32) {} | ^^^^^^^^^^^^ required by this bound in `foo` -help: consider specifying the type argument in the function call +help: consider specifying the generic argument | LL | foo::<T>(42); | +++++ diff --git a/src/test/ui/type/type-ascription-instead-of-initializer.stderr b/src/test/ui/type/type-ascription-instead-of-initializer.stderr index de578ca93ed..ba8d15d0b73 100644 --- a/src/test/ui/type/type-ascription-instead-of-initializer.stderr +++ b/src/test/ui/type/type-ascription-instead-of-initializer.stderr @@ -15,9 +15,6 @@ LL | let x: Vec::with_capacity(10, 20); | note: associated function defined here --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL - | -LL | pub fn with_capacity(capacity: usize) -> Self { - | ^^^^^^^^^^^^^ help: remove the extra argument | LL | let x: Vec::with_capacity(10); diff --git a/src/test/ui/type/type-ascription-precedence.stderr b/src/test/ui/type/type-ascription-precedence.stderr index fc85ec93315..edc5aeffdcd 100644 --- a/src/test/ui/type/type-ascription-precedence.stderr +++ b/src/test/ui/type/type-ascription-precedence.stderr @@ -33,11 +33,8 @@ note: an implementation of `std::ops::Neg` might be missing for `Z` | LL | struct Z; | ^^^^^^^^ must implement `std::ops::Neg` -note: the following trait must be implemented +note: the trait `std::ops::Neg` must be implemented --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | pub trait Neg { - | ^^^^^^^^^^^^^ error[E0308]: mismatched types --> $DIR/type-ascription-precedence.rs:45:5 diff --git a/src/test/ui/type/type-check/issue-40294.stderr b/src/test/ui/type/type-check/issue-40294.stderr index 75feb5698eb..d15fd23418b 100644 --- a/src/test/ui/type/type-check/issue-40294.stderr +++ b/src/test/ui/type/type-check/issue-40294.stderr @@ -4,7 +4,13 @@ error[E0283]: type annotations needed: cannot satisfy `&'a T: Foo` LL | where &'a T : Foo, | ^^^ | - = note: cannot satisfy `&'a T: Foo` +note: multiple `impl`s or `where` clauses satisfying `&'a T: Foo` found + --> $DIR/issue-40294.rs:6:19 + | +LL | where &'a T : Foo, + | ^^^ +LL | &'b T : Foo + | ^^^ error: aborting due to previous error diff --git a/src/test/ui/type/type-check/unknown_type_for_closure.stderr b/src/test/ui/type/type-check/unknown_type_for_closure.stderr index 9ae97f390d3..e5e29aabf37 100644 --- a/src/test/ui/type/type-check/unknown_type_for_closure.stderr +++ b/src/test/ui/type/type-check/unknown_type_for_closure.stderr @@ -12,8 +12,8 @@ LL | let x = |_| {}; | help: consider giving this closure parameter an explicit type | -LL | let x = |_: _| {}; - | +++ +LL | let x = |_: /* Type */| {}; + | ++++++++++++ error[E0282]: type annotations needed --> $DIR/unknown_type_for_closure.rs:10:14 diff --git a/src/test/ui/type/type-path-err-node-types.stderr b/src/test/ui/type/type-path-err-node-types.stderr index c1ae10efac4..1aed1dbe4ba 100644 --- a/src/test/ui/type/type-path-err-node-types.stderr +++ b/src/test/ui/type/type-path-err-node-types.stderr @@ -30,8 +30,8 @@ LL | let _ = |a, b: _| -> _ { 0 }; | help: consider giving this closure parameter an explicit type | -LL | let _ = |a: _, b: _| -> _ { 0 }; - | +++ +LL | let _ = |a: /* Type */, b: _| -> _ { 0 }; + | ++++++++++++ error: aborting due to 5 previous errors diff --git a/src/test/ui/type_length_limit.stderr b/src/test/ui/type_length_limit.stderr index ff487466902..5b00d387aba 100644 --- a/src/test/ui/type_length_limit.stderr +++ b/src/test/ui/type_length_limit.stderr @@ -1,9 +1,6 @@ error: reached the type-length limit while instantiating `std::mem::drop::<Option<((((..., ..., ...), ..., ...), ..., ...), ..., ...)>>` --> $SRC_DIR/core/src/mem/mod.rs:LL:COL | -LL | pub fn drop<T>(_x: T) {} - | ^^^^^^^^^^^^^^^^^^^^^ - | = help: consider adding a `#![type_length_limit="10"]` attribute to your crate = note: the full type name has been written to '$TEST_BUILD_DIR/type_length_limit/type_length_limit.long-type.txt' diff --git a/src/test/ui/typeck/explain_clone_autoref.stderr b/src/test/ui/typeck/explain_clone_autoref.stderr index faac680ea19..ff36e18d283 100644 --- a/src/test/ui/typeck/explain_clone_autoref.stderr +++ b/src/test/ui/typeck/explain_clone_autoref.stderr @@ -12,6 +12,10 @@ note: `NotClone` does not implement `Clone`, so `&NotClone` was cloned instead | LL | nc.clone() | ^^ +help: consider annotating `NotClone` with `#[derive(Clone)]` + | +LL | #[derive(Clone)] + | error: aborting due to previous error diff --git a/src/test/ui/typeck/issue-46112.stderr b/src/test/ui/typeck/issue-46112.stderr index 91381e8ef4a..f488463ae3c 100644 --- a/src/test/ui/typeck/issue-46112.stderr +++ b/src/test/ui/typeck/issue-46112.stderr @@ -10,9 +10,6 @@ LL | fn main() { test(Ok(())); } found unit type `()` note: tuple variant defined here --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | Ok(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^ help: try wrapping the expression in `Some` | LL | fn main() { test(Ok(Some(()))); } diff --git a/src/test/ui/typeck/issue-75883.stderr b/src/test/ui/typeck/issue-75883.stderr index 3861e0507f6..f5adcabe3e9 100644 --- a/src/test/ui/typeck/issue-75883.stderr +++ b/src/test/ui/typeck/issue-75883.stderr @@ -6,11 +6,6 @@ LL | pub fn run() -> Result<_> { | | | expected 2 generic arguments | -note: enum defined here, with 2 generic parameters: `T`, `E` - --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | pub enum Result<T, E> { - | ^^^^^^ - - help: add missing generic argument | LL | pub fn run() -> Result<_, E> { @@ -24,11 +19,6 @@ LL | pub fn interact(&mut self) -> Result<_> { | | | expected 2 generic arguments | -note: enum defined here, with 2 generic parameters: `T`, `E` - --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | pub enum Result<T, E> { - | ^^^^^^ - - help: add missing generic argument | LL | pub fn interact(&mut self) -> Result<_, E> { diff --git a/src/test/ui/typeck/issue-83693.stderr b/src/test/ui/typeck/issue-83693.stderr index 1e45c2d35df..ce4f73b820a 100644 --- a/src/test/ui/typeck/issue-83693.stderr +++ b/src/test/ui/typeck/issue-83693.stderr @@ -3,11 +3,9 @@ error[E0412]: cannot find type `F` in this scope | LL | impl F { | ^ help: a trait with a similar name exists: `Fn` + --> $SRC_DIR/core/src/ops/function.rs:LL:COL | - ::: $SRC_DIR/core/src/ops/function.rs:LL:COL - | -LL | pub trait Fn<Args: Tuple>: FnMut<Args> { - | -------------------------------------- similarly named trait `Fn` defined here + = note: similarly named trait `Fn` defined here error[E0412]: cannot find type `TestResult` in this scope --> $DIR/issue-83693.rs:9:22 diff --git a/src/test/ui/typeck/issue-84768.stderr b/src/test/ui/typeck/issue-84768.stderr index 04dc0e36520..00d23389720 100644 --- a/src/test/ui/typeck/issue-84768.stderr +++ b/src/test/ui/typeck/issue-84768.stderr @@ -16,9 +16,6 @@ LL | <F as FnOnce(&mut u8)>::call_once(f, 1) found type `{integer}` note: associated function defined here --> $SRC_DIR/core/src/ops/function.rs:LL:COL - | -LL | extern "rust-call" fn call_once(self, args: Args) -> Self::Output; - | ^^^^^^^^^ error: aborting due to 2 previous errors diff --git a/src/test/ui/typeck/issue-92481.rs b/src/test/ui/typeck/issue-92481.rs new file mode 100644 index 00000000000..0a6b1843d99 --- /dev/null +++ b/src/test/ui/typeck/issue-92481.rs @@ -0,0 +1,14 @@ +//check-fail + +#![crate_type="lib"] + +fn r({) { + Ok { //~ ERROR mismatched types [E0308] + d..||_=m + } +} +//~^^^^^ ERROR expected parameter name, found `{` +//~| ERROR expected one of `,`, `:`, or `}`, found `..` +//~^^^^^ ERROR cannot find value `d` in this scope [E0425] +//~| ERROR cannot find value `m` in this scope [E0425] +//~| ERROR variant `Result<_, _>::Ok` has no field named `d` [E0559] diff --git a/src/test/ui/typeck/issue-92481.stderr b/src/test/ui/typeck/issue-92481.stderr new file mode 100644 index 00000000000..cd778a649b6 --- /dev/null +++ b/src/test/ui/typeck/issue-92481.stderr @@ -0,0 +1,60 @@ +error: expected parameter name, found `{` + --> $DIR/issue-92481.rs:5:6 + | +LL | fn r({) { + | ^ expected parameter name + +error: expected one of `,`, `:`, or `}`, found `..` + --> $DIR/issue-92481.rs:5:6 + | +LL | fn r({) { + | ^ unclosed delimiter +LL | Ok { +LL | d..||_=m + | -^ + | | + | help: `}` may belong here + +error[E0425]: cannot find value `d` in this scope + --> $DIR/issue-92481.rs:7:9 + | +LL | d..||_=m + | ^ not found in this scope + +error[E0425]: cannot find value `m` in this scope + --> $DIR/issue-92481.rs:7:16 + | +LL | d..||_=m + | ^ not found in this scope + +error[E0559]: variant `Result<_, _>::Ok` has no field named `d` + --> $DIR/issue-92481.rs:7:9 + | +LL | d..||_=m + | ^ field does not exist + --> $SRC_DIR/core/src/result.rs:LL:COL + | + = note: `Result<_, _>::Ok` defined here + | +help: `Result<_, _>::Ok` is a tuple variant, use the appropriate syntax + | +LL | Result<_, _>::Ok(/* fields */) + | + +error[E0308]: mismatched types + --> $DIR/issue-92481.rs:6:5 + | +LL | fn r({) { + | - help: a return type might be missing here: `-> _` +LL | / Ok { +LL | | d..||_=m +LL | | } + | |_____^ expected `()`, found enum `Result` + | + = note: expected unit type `()` + found enum `Result<_, _>` + +error: aborting due to 6 previous errors + +Some errors have detailed explanations: E0308, E0425, E0559. +For more information about an error, try `rustc --explain E0308`. diff --git a/src/test/ui/typeck/struct-enum-wrong-args.stderr b/src/test/ui/typeck/struct-enum-wrong-args.stderr index ea94bcbc290..fbced928a8a 100644 --- a/src/test/ui/typeck/struct-enum-wrong-args.stderr +++ b/src/test/ui/typeck/struct-enum-wrong-args.stderr @@ -6,9 +6,6 @@ LL | let _ = Some(3, 2); | note: tuple variant defined here --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | Some(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^^^ help: remove the extra argument | LL | let _ = Some(3); @@ -24,9 +21,6 @@ LL | let _ = Ok(3, 6, 2); | note: tuple variant defined here --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | Ok(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^ help: remove the extra arguments | LL | let _ = Ok(3); @@ -40,9 +34,6 @@ LL | let _ = Ok(); | note: tuple variant defined here --> $SRC_DIR/core/src/result.rs:LL:COL - | -LL | Ok(#[stable(feature = "rust1", since = "1.0.0")] T), - | ^^ help: provide the argument | LL | let _ = Ok(/* value */); diff --git a/src/test/ui/typeck/typeck-builtin-bound-type-parameters.stderr b/src/test/ui/typeck/typeck-builtin-bound-type-parameters.stderr index bf74dd7dec0..331540d1e42 100644 --- a/src/test/ui/typeck/typeck-builtin-bound-type-parameters.stderr +++ b/src/test/ui/typeck/typeck-builtin-bound-type-parameters.stderr @@ -5,12 +5,6 @@ LL | fn foo1<T:Copy<U>, U>(x: T) {} | ^^^^--- help: remove these generics | | | expected 0 generic arguments - | -note: trait defined here, with 0 generic parameters - --> $SRC_DIR/core/src/marker.rs:LL:COL - | -LL | pub trait Copy: Clone { - | ^^^^ error[E0107]: this trait takes 0 generic arguments but 1 generic argument was supplied --> $DIR/typeck-builtin-bound-type-parameters.rs:4:14 @@ -19,12 +13,6 @@ LL | trait Trait: Copy<dyn Send> {} | ^^^^---------- help: remove these generics | | | expected 0 generic arguments - | -note: trait defined here, with 0 generic parameters - --> $SRC_DIR/core/src/marker.rs:LL:COL - | -LL | pub trait Copy: Clone { - | ^^^^ error[E0107]: this trait takes 0 generic arguments but 1 generic argument was supplied --> $DIR/typeck-builtin-bound-type-parameters.rs:7:21 @@ -33,12 +21,6 @@ LL | struct MyStruct1<T: Copy<T>>; | ^^^^--- help: remove these generics | | | expected 0 generic arguments - | -note: trait defined here, with 0 generic parameters - --> $SRC_DIR/core/src/marker.rs:LL:COL - | -LL | pub trait Copy: Clone { - | ^^^^ error[E0107]: this trait takes 0 lifetime arguments but 1 lifetime argument was supplied --> $DIR/typeck-builtin-bound-type-parameters.rs:10:25 @@ -47,12 +29,6 @@ LL | struct MyStruct2<'a, T: Copy<'a>>; | ^^^^---- help: remove these generics | | | expected 0 lifetime arguments - | -note: trait defined here, with 0 lifetime parameters - --> $SRC_DIR/core/src/marker.rs:LL:COL - | -LL | pub trait Copy: Clone { - | ^^^^ error[E0107]: this trait takes 0 lifetime arguments but 1 lifetime argument was supplied --> $DIR/typeck-builtin-bound-type-parameters.rs:13:15 @@ -61,12 +37,6 @@ LL | fn foo2<'a, T:Copy<'a, U>, U>(x: T) {} | ^^^^ -- help: remove this lifetime argument | | | expected 0 lifetime arguments - | -note: trait defined here, with 0 lifetime parameters - --> $SRC_DIR/core/src/marker.rs:LL:COL - | -LL | pub trait Copy: Clone { - | ^^^^ error[E0107]: this trait takes 0 generic arguments but 1 generic argument was supplied --> $DIR/typeck-builtin-bound-type-parameters.rs:13:15 @@ -75,12 +45,6 @@ LL | fn foo2<'a, T:Copy<'a, U>, U>(x: T) {} | ^^^^ - help: remove this generic argument | | | expected 0 generic arguments - | -note: trait defined here, with 0 generic parameters - --> $SRC_DIR/core/src/marker.rs:LL:COL - | -LL | pub trait Copy: Clone { - | ^^^^ error: aborting due to 6 previous errors diff --git a/src/test/ui/ufcs/ufcs-qpath-self-mismatch.stderr b/src/test/ui/ufcs/ufcs-qpath-self-mismatch.stderr index ed56e1cf957..a2fe627868a 100644 --- a/src/test/ui/ufcs/ufcs-qpath-self-mismatch.stderr +++ b/src/test/ui/ufcs/ufcs-qpath-self-mismatch.stderr @@ -23,9 +23,6 @@ LL | <i32 as Add<i32>>::add(1u32, 2); | note: associated function defined here --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | fn add(self, rhs: Rhs) -> Self::Output; - | ^^^ help: change the type of the numeric literal from `u32` to `i32` | LL | <i32 as Add<i32>>::add(1i32, 2); @@ -41,9 +38,6 @@ LL | <i32 as Add<i32>>::add(1, 2u32); | note: associated function defined here --> $SRC_DIR/core/src/ops/arith.rs:LL:COL - | -LL | fn add(self, rhs: Rhs) -> Self::Output; - | ^^^ help: change the type of the numeric literal from `u32` to `i32` | LL | <i32 as Add<i32>>::add(1, 2i32); diff --git a/src/test/ui/unboxed-closures/non-tupled-arg-mismatch.stderr b/src/test/ui/unboxed-closures/non-tupled-arg-mismatch.stderr index 1c18eb0fc49..cfbe1c6f2cb 100644 --- a/src/test/ui/unboxed-closures/non-tupled-arg-mismatch.stderr +++ b/src/test/ui/unboxed-closures/non-tupled-arg-mismatch.stderr @@ -6,9 +6,6 @@ LL | fn a<F: Fn<usize>>(f: F) {} | note: required by a bound in `Fn` --> $SRC_DIR/core/src/ops/function.rs:LL:COL - | -LL | pub trait Fn<Args: Tuple>: FnMut<Args> { - | ^^^^^ required by this bound in `Fn` error: aborting due to previous error diff --git a/src/test/ui/unboxed-closures/unboxed-closures-static-call-wrong-trait.stderr b/src/test/ui/unboxed-closures/unboxed-closures-static-call-wrong-trait.stderr index e5ca0edd7a9..99ec5178340 100644 --- a/src/test/ui/unboxed-closures/unboxed-closures-static-call-wrong-trait.stderr +++ b/src/test/ui/unboxed-closures/unboxed-closures-static-call-wrong-trait.stderr @@ -1,8 +1,8 @@ -error[E0599]: no method named `call` found for closure `[closure@$DIR/unboxed-closures-static-call-wrong-trait.rs:6:26: 6:29]` in the current scope +error[E0599]: no method named `call` found for closure `[closure@unboxed-closures-static-call-wrong-trait.rs:6:26]` in the current scope --> $DIR/unboxed-closures-static-call-wrong-trait.rs:7:10 | LL | mut_.call((0, )); - | ^^^^ method not found in `[closure@$DIR/unboxed-closures-static-call-wrong-trait.rs:6:26: 6:29]` + | ^^^^ method not found in `[closure@unboxed-closures-static-call-wrong-trait.rs:6:26]` error: aborting due to previous error diff --git a/src/test/ui/uninhabited/uninhabited-matches-feature-gated.stderr b/src/test/ui/uninhabited/uninhabited-matches-feature-gated.stderr index c7882963407..d33a61ca848 100644 --- a/src/test/ui/uninhabited/uninhabited-matches-feature-gated.stderr +++ b/src/test/ui/uninhabited/uninhabited-matches-feature-gated.stderr @@ -6,12 +6,9 @@ LL | let _ = match x { | note: `Result<u32, &Void>` defined here --> $SRC_DIR/core/src/result.rs:LL:COL + ::: $SRC_DIR/core/src/result.rs:LL:COL | -LL | pub enum Result<T, E> { - | --------------------- -... -LL | Err(#[stable(feature = "rust1", since = "1.0.0")] E), - | ^^^ not covered + = note: not covered = note: the matched value is of type `Result<u32, &Void>` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown | @@ -88,12 +85,9 @@ LL | let _ = match x { | note: `Result<u32, Void>` defined here --> $SRC_DIR/core/src/result.rs:LL:COL + ::: $SRC_DIR/core/src/result.rs:LL:COL | -LL | pub enum Result<T, E> { - | --------------------- -... -LL | Err(#[stable(feature = "rust1", since = "1.0.0")] E), - | ^^^ not covered + = note: not covered = note: the matched value is of type `Result<u32, Void>` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown | @@ -111,12 +105,9 @@ LL | let Ok(x) = x; = note: for more information, visit https://doc.rust-lang.org/book/ch18-02-refutability.html note: `Result<u32, Void>` defined here --> $SRC_DIR/core/src/result.rs:LL:COL + ::: $SRC_DIR/core/src/result.rs:LL:COL | -LL | pub enum Result<T, E> { - | --------------------- -... -LL | Err(#[stable(feature = "rust1", since = "1.0.0")] E), - | ^^^ not covered + = note: not covered = note: the matched value is of type `Result<u32, Void>` help: you might want to use `if let` to ignore the variant that isn't matched | diff --git a/src/test/ui/union/union-borrow-move-parent-sibling.mirunsafeck.stderr b/src/test/ui/union/union-borrow-move-parent-sibling.mirunsafeck.stderr index ca02de4c61b..7f931b49a58 100644 --- a/src/test/ui/union/union-borrow-move-parent-sibling.mirunsafeck.stderr +++ b/src/test/ui/union/union-borrow-move-parent-sibling.mirunsafeck.stderr @@ -14,10 +14,12 @@ error[E0507]: cannot move out of dereference of `ManuallyDrop<((MockVec<u8>, Moc --> $DIR/union-borrow-move-parent-sibling.rs:62:13 | LL | let a = u.x.0; - | ^^^^^ - | | - | move occurs because value has type `(MockVec<u8>, MockVec<u8>)`, which does not implement the `Copy` trait - | help: consider borrowing here: `&u.x.0` + | ^^^^^ move occurs because value has type `(MockVec<u8>, MockVec<u8>)`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | let a = &u.x.0; + | + error[E0382]: use of moved value: `u` --> $DIR/union-borrow-move-parent-sibling.rs:64:13 @@ -46,10 +48,12 @@ error[E0507]: cannot move out of dereference of `ManuallyDrop<((MockVec<u8>, Moc --> $DIR/union-borrow-move-parent-sibling.rs:76:13 | LL | let a = (u.x.0).0; - | ^^^^^^^^^ - | | - | move occurs because value has type `MockVec<u8>`, which does not implement the `Copy` trait - | help: consider borrowing here: `&(u.x.0).0` + | ^^^^^^^^^ move occurs because value has type `MockVec<u8>`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | let a = &(u.x.0).0; + | + error[E0382]: use of moved value: `u` --> $DIR/union-borrow-move-parent-sibling.rs:78:13 diff --git a/src/test/ui/union/union-borrow-move-parent-sibling.thirunsafeck.stderr b/src/test/ui/union/union-borrow-move-parent-sibling.thirunsafeck.stderr index ca02de4c61b..7f931b49a58 100644 --- a/src/test/ui/union/union-borrow-move-parent-sibling.thirunsafeck.stderr +++ b/src/test/ui/union/union-borrow-move-parent-sibling.thirunsafeck.stderr @@ -14,10 +14,12 @@ error[E0507]: cannot move out of dereference of `ManuallyDrop<((MockVec<u8>, Moc --> $DIR/union-borrow-move-parent-sibling.rs:62:13 | LL | let a = u.x.0; - | ^^^^^ - | | - | move occurs because value has type `(MockVec<u8>, MockVec<u8>)`, which does not implement the `Copy` trait - | help: consider borrowing here: `&u.x.0` + | ^^^^^ move occurs because value has type `(MockVec<u8>, MockVec<u8>)`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | let a = &u.x.0; + | + error[E0382]: use of moved value: `u` --> $DIR/union-borrow-move-parent-sibling.rs:64:13 @@ -46,10 +48,12 @@ error[E0507]: cannot move out of dereference of `ManuallyDrop<((MockVec<u8>, Moc --> $DIR/union-borrow-move-parent-sibling.rs:76:13 | LL | let a = (u.x.0).0; - | ^^^^^^^^^ - | | - | move occurs because value has type `MockVec<u8>`, which does not implement the `Copy` trait - | help: consider borrowing here: `&(u.x.0).0` + | ^^^^^^^^^ move occurs because value has type `MockVec<u8>`, which does not implement the `Copy` trait + | +help: consider borrowing here + | +LL | let a = &(u.x.0).0; + | + error[E0382]: use of moved value: `u` --> $DIR/union-borrow-move-parent-sibling.rs:78:13 diff --git a/src/test/ui/union/union-derive-clone.mirunsafeck.stderr b/src/test/ui/union/union-derive-clone.mirunsafeck.stderr index 148fb504670..65ff72fe474 100644 --- a/src/test/ui/union/union-derive-clone.mirunsafeck.stderr +++ b/src/test/ui/union/union-derive-clone.mirunsafeck.stderr @@ -6,9 +6,6 @@ LL | #[derive(Clone)] | note: required by a bound in `AssertParamIsCopy` --> $SRC_DIR/core/src/clone.rs:LL:COL - | -LL | pub struct AssertParamIsCopy<T: Copy + ?Sized> { - | ^^^^ required by this bound in `AssertParamIsCopy` = note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider annotating `U1` with `#[derive(Copy)]` | diff --git a/src/test/ui/union/union-derive-clone.thirunsafeck.stderr b/src/test/ui/union/union-derive-clone.thirunsafeck.stderr index 148fb504670..65ff72fe474 100644 --- a/src/test/ui/union/union-derive-clone.thirunsafeck.stderr +++ b/src/test/ui/union/union-derive-clone.thirunsafeck.stderr @@ -6,9 +6,6 @@ LL | #[derive(Clone)] | note: required by a bound in `AssertParamIsCopy` --> $SRC_DIR/core/src/clone.rs:LL:COL - | -LL | pub struct AssertParamIsCopy<T: Copy + ?Sized> { - | ^^^^ required by this bound in `AssertParamIsCopy` = note: this error originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider annotating `U1` with `#[derive(Copy)]` | diff --git a/src/test/ui/union/union-derive-eq.mirunsafeck.stderr b/src/test/ui/union/union-derive-eq.mirunsafeck.stderr index 99505f31639..9e55390b54d 100644 --- a/src/test/ui/union/union-derive-eq.mirunsafeck.stderr +++ b/src/test/ui/union/union-derive-eq.mirunsafeck.stderr @@ -9,9 +9,6 @@ LL | a: PartialEqNotEq, | note: required by a bound in `AssertParamIsEq` --> $SRC_DIR/core/src/cmp.rs:LL:COL - | -LL | pub struct AssertParamIsEq<T: Eq + ?Sized> { - | ^^ required by this bound in `AssertParamIsEq` = note: this error originates in the derive macro `Eq` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider annotating `PartialEqNotEq` with `#[derive(Eq)]` | diff --git a/src/test/ui/union/union-derive-eq.thirunsafeck.stderr b/src/test/ui/union/union-derive-eq.thirunsafeck.stderr index 99505f31639..9e55390b54d 100644 --- a/src/test/ui/union/union-derive-eq.thirunsafeck.stderr +++ b/src/test/ui/union/union-derive-eq.thirunsafeck.stderr @@ -9,9 +9,6 @@ LL | a: PartialEqNotEq, | note: required by a bound in `AssertParamIsEq` --> $SRC_DIR/core/src/cmp.rs:LL:COL - | -LL | pub struct AssertParamIsEq<T: Eq + ?Sized> { - | ^^ required by this bound in `AssertParamIsEq` = note: this error originates in the derive macro `Eq` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider annotating `PartialEqNotEq` with `#[derive(Eq)]` | diff --git a/src/test/ui/unique-object-noncopyable.stderr b/src/test/ui/unique-object-noncopyable.stderr index 98a9bd07ed2..db42ed9baf1 100644 --- a/src/test/ui/unique-object-noncopyable.stderr +++ b/src/test/ui/unique-object-noncopyable.stderr @@ -9,14 +9,10 @@ LL | trait Foo { ... LL | let _z = y.clone(); | ^^^^^ method cannot be called on `Box<dyn Foo>` due to unsatisfied trait bounds - | + --> $SRC_DIR/alloc/src/boxed.rs:LL:COL ::: $SRC_DIR/alloc/src/boxed.rs:LL:COL | -LL | / pub struct Box< -LL | | T: ?Sized, -LL | | #[unstable(feature = "allocator_api", issue = "32838")] A: Allocator = Global, -LL | | >(Unique<T>, A); - | |_- doesn't satisfy `Box<dyn Foo>: Clone` + = note: doesn't satisfy `Box<dyn Foo>: Clone` | = note: the following trait bounds were not satisfied: `dyn Foo: Sized` diff --git a/src/test/ui/unique-pinned-nocopy.stderr b/src/test/ui/unique-pinned-nocopy.stderr index 7af9c684b72..de6611324ca 100644 --- a/src/test/ui/unique-pinned-nocopy.stderr +++ b/src/test/ui/unique-pinned-nocopy.stderr @@ -6,14 +6,10 @@ LL | struct R { ... LL | let _j = i.clone(); | ^^^^^ method cannot be called on `Box<R>` due to unsatisfied trait bounds - | + --> $SRC_DIR/alloc/src/boxed.rs:LL:COL ::: $SRC_DIR/alloc/src/boxed.rs:LL:COL | -LL | / pub struct Box< -LL | | T: ?Sized, -LL | | #[unstable(feature = "allocator_api", issue = "32838")] A: Allocator = Global, -LL | | >(Unique<T>, A); - | |_- doesn't satisfy `Box<R>: Clone` + = note: doesn't satisfy `Box<R>: Clone` | = note: the following trait bounds were not satisfied: `R: Clone` diff --git a/src/test/ui/unop-move-semantics.stderr b/src/test/ui/unop-move-semantics.stderr index d52a92b8888..2a3ca14433f 100644 --- a/src/test/ui/unop-move-semantics.stderr +++ b/src/test/ui/unop-move-semantics.stderr @@ -11,9 +11,6 @@ LL | x.clone(); | note: calling this operator moves the left-hand side --> $SRC_DIR/core/src/ops/bit.rs:LL:COL - | -LL | fn not(self) -> Self::Output; - | ^^^^ help: consider cloning the value if the performance cost is acceptable | LL | !x.clone(); @@ -57,9 +54,6 @@ LL | !*m; | note: calling this operator moves the left-hand side --> $SRC_DIR/core/src/ops/bit.rs:LL:COL - | -LL | fn not(self) -> Self::Output; - | ^^^^ error[E0507]: cannot move out of `*n` which is behind a shared reference --> $DIR/unop-move-semantics.rs:26:6 diff --git a/src/test/ui/unsized-locals/borrow-after-move.stderr b/src/test/ui/unsized-locals/borrow-after-move.stderr index d8bffd4f9cf..9e3c345dd80 100644 --- a/src/test/ui/unsized-locals/borrow-after-move.stderr +++ b/src/test/ui/unsized-locals/borrow-after-move.stderr @@ -59,7 +59,7 @@ LL | y.foo(); LL | println!("{}", &y); | ^^ value borrowed here after move | -note: this function takes ownership of the receiver `self`, which moves `y` +note: `Foo::foo` takes ownership of the receiver `self`, which moves `y` --> $DIR/borrow-after-move.rs:5:12 | LL | fn foo(self) -> String; diff --git a/src/test/ui/unsized-locals/double-move.stderr b/src/test/ui/unsized-locals/double-move.stderr index 71534818141..49b906bbe02 100644 --- a/src/test/ui/unsized-locals/double-move.stderr +++ b/src/test/ui/unsized-locals/double-move.stderr @@ -55,7 +55,7 @@ LL | y.foo(); LL | y.foo(); | ^ value used here after move | -note: this function takes ownership of the receiver `self`, which moves `y` +note: `Foo::foo` takes ownership of the receiver `self`, which moves `y` --> $DIR/double-move.rs:5:12 | LL | fn foo(self) -> String; diff --git a/src/test/ui/unsized/issue-71659.stderr b/src/test/ui/unsized/issue-71659.stderr index 50060e53a49..d7b95f55769 100644 --- a/src/test/ui/unsized/issue-71659.stderr +++ b/src/test/ui/unsized/issue-71659.stderr @@ -1,10 +1,8 @@ error[E0277]: the trait bound `dyn Foo: CastTo<[i32]>` is not satisfied - --> $DIR/issue-71659.rs:30:13 + --> $DIR/issue-71659.rs:30:15 | LL | let x = x.cast::<[i32]>(); - | ^ ---- required by a bound introduced by this call - | | - | the trait `CastTo<[i32]>` is not implemented for `dyn Foo` + | ^^^^ the trait `CastTo<[i32]>` is not implemented for `dyn Foo` | note: required by a bound in `Cast::cast` --> $DIR/issue-71659.rs:19:15 diff --git a/src/test/ui/use/use-after-move-self-based-on-type.stderr b/src/test/ui/use/use-after-move-self-based-on-type.stderr index 7fdc4ab251f..1bdf49801f9 100644 --- a/src/test/ui/use/use-after-move-self-based-on-type.stderr +++ b/src/test/ui/use/use-after-move-self-based-on-type.stderr @@ -8,7 +8,7 @@ LL | self.bar(); LL | return self.x; | ^^^^^^ value used here after move | -note: this function takes ownership of the receiver `self`, which moves `self` +note: `S::bar` takes ownership of the receiver `self`, which moves `self` --> $DIR/use-after-move-self-based-on-type.rs:15:16 | LL | pub fn bar(self) {} diff --git a/src/test/ui/use/use-after-move-self.stderr b/src/test/ui/use/use-after-move-self.stderr index 073deee63b9..59cc22eadb0 100644 --- a/src/test/ui/use/use-after-move-self.stderr +++ b/src/test/ui/use/use-after-move-self.stderr @@ -8,7 +8,7 @@ LL | self.bar(); LL | return *self.x; | ^^^^^^^ value used here after move | -note: this function takes ownership of the receiver `self`, which moves `self` +note: `S::bar` takes ownership of the receiver `self`, which moves `self` --> $DIR/use-after-move-self.rs:13:16 | LL | pub fn bar(self) {} diff --git a/src/test/ui/walk-struct-literal-with.stderr b/src/test/ui/walk-struct-literal-with.stderr index 4384e345e85..2b85fa9bed4 100644 --- a/src/test/ui/walk-struct-literal-with.stderr +++ b/src/test/ui/walk-struct-literal-with.stderr @@ -8,7 +8,7 @@ LL | let end = Mine{other_val:1, ..start.make_string_bar()}; LL | println!("{}", start.test); | ^^^^^^^^^^ value borrowed here after move | -note: this function takes ownership of the receiver `self`, which moves `start` +note: `Mine::make_string_bar` takes ownership of the receiver `self`, which moves `start` --> $DIR/walk-struct-literal-with.rs:7:28 | LL | fn make_string_bar(mut self) -> Mine{ diff --git a/src/test/ui/wf/hir-wf-check-erase-regions.stderr b/src/test/ui/wf/hir-wf-check-erase-regions.stderr index b04588c5716..7bc19dd2e21 100644 --- a/src/test/ui/wf/hir-wf-check-erase-regions.stderr +++ b/src/test/ui/wf/hir-wf-check-erase-regions.stderr @@ -9,9 +9,6 @@ LL | type IntoIter = std::iter::Flatten<std::slice::Iter<'a, T>>; = note: required for `&T` to implement `IntoIterator` note: required by a bound in `Flatten` --> $SRC_DIR/core/src/iter/adapters/flatten.rs:LL:COL - | -LL | pub struct Flatten<I: Iterator<Item: IntoIterator>> { - | ^^^^^^^^^^^^ required by this bound in `Flatten` error[E0277]: `&T` is not an iterator --> $DIR/hir-wf-check-erase-regions.rs:10:27 @@ -24,9 +21,6 @@ LL | fn into_iter(self) -> Self::IntoIter { = note: required for `&T` to implement `IntoIterator` note: required by a bound in `Flatten` --> $SRC_DIR/core/src/iter/adapters/flatten.rs:LL:COL - | -LL | pub struct Flatten<I: Iterator<Item: IntoIterator>> { - | ^^^^^^^^^^^^ required by this bound in `Flatten` error: aborting due to 2 previous errors diff --git a/src/test/ui/wf/wf-impl-self-type.stderr b/src/test/ui/wf/wf-impl-self-type.stderr index 371321793ad..1ca368729fe 100644 --- a/src/test/ui/wf/wf-impl-self-type.stderr +++ b/src/test/ui/wf/wf-impl-self-type.stderr @@ -7,9 +7,6 @@ LL | impl Foo for Option<[u8]> {} = help: the trait `Sized` is not implemented for `[u8]` note: required by a bound in `Option` --> $SRC_DIR/core/src/option.rs:LL:COL - | -LL | pub enum Option<T> { - | ^ required by this bound in `Option` error: aborting due to previous error diff --git a/src/tools/cargo b/src/tools/cargo -Subproject 70898e522116f6c23971e2a554b2dc85fd4c84c +Subproject cc0a320879c17207bbfb96b5d778e28a2c62030 diff --git a/src/tools/clippy/.github/workflows/clippy_bors.yml b/src/tools/clippy/.github/workflows/clippy_bors.yml index 6448b2d4068..1bc457a9479 100644 --- a/src/tools/clippy/.github/workflows/clippy_bors.yml +++ b/src/tools/clippy/.github/workflows/clippy_bors.yml @@ -82,13 +82,6 @@ jobs: with: github_token: "${{ secrets.github_token }}" - - name: Install dependencies (Linux-i686) - run: | - sudo dpkg --add-architecture i386 - sudo apt-get update - sudo apt-get install gcc-multilib libssl-dev:i386 libgit2-dev:i386 - if: matrix.host == 'i686-unknown-linux-gnu' - - name: Checkout uses: actions/checkout@v3.0.2 diff --git a/src/tools/clippy/CHANGELOG.md b/src/tools/clippy/CHANGELOG.md index 23912bb3ed6..903ee938d9d 100644 --- a/src/tools/clippy/CHANGELOG.md +++ b/src/tools/clippy/CHANGELOG.md @@ -6,11 +6,181 @@ document. ## Unreleased / Beta / In Rust Nightly -[b52fb523...master](https://github.com/rust-lang/rust-clippy/compare/b52fb523...master) +[4f142aa1...master](https://github.com/rust-lang/rust-clippy/compare/4f142aa1...master) + +## Rust 1.66 + +Current stable, released 2022-12-15 + +[b52fb523...4f142aa1](https://github.com/rust-lang/rust-clippy/compare/b52fb523...4f142aa1) + +### New Lints + +* [`manual_clamp`] + [#9484](https://github.com/rust-lang/rust-clippy/pull/9484) +* [`missing_trait_methods`] + [#9670](https://github.com/rust-lang/rust-clippy/pull/9670) +* [`unused_format_specs`] + [#9637](https://github.com/rust-lang/rust-clippy/pull/9637) +* [`iter_kv_map`] + [#9409](https://github.com/rust-lang/rust-clippy/pull/9409) +* [`manual_filter`] + [#9451](https://github.com/rust-lang/rust-clippy/pull/9451) +* [`box_default`] + [#9511](https://github.com/rust-lang/rust-clippy/pull/9511) +* [`implicit_saturating_add`] + [#9549](https://github.com/rust-lang/rust-clippy/pull/9549) +* [`as_ptr_cast_mut`] + [#9572](https://github.com/rust-lang/rust-clippy/pull/9572) +* [`disallowed_macros`] + [#9495](https://github.com/rust-lang/rust-clippy/pull/9495) +* [`partial_pub_fields`] + [#9658](https://github.com/rust-lang/rust-clippy/pull/9658) +* [`uninlined_format_args`] + [#9233](https://github.com/rust-lang/rust-clippy/pull/9233) +* [`cast_nan_to_int`] + [#9617](https://github.com/rust-lang/rust-clippy/pull/9617) + +### Moves and Deprecations + +* `positional_named_format_parameters` was uplifted to rustc under the new name + `named_arguments_used_positionally` + [#8518](https://github.com/rust-lang/rust-clippy/pull/8518) +* Moved [`implicit_saturating_sub`] to `style` (Now warn-by-default) + [#9584](https://github.com/rust-lang/rust-clippy/pull/9584) +* Moved `derive_partial_eq_without_eq` to `nursery` (now allow-by-default) + [#9536](https://github.com/rust-lang/rust-clippy/pull/9536) + +### Enhancements + +* [`nonstandard_macro_braces`]: Now includes `matches!()` in the default lint config + [#9471](https://github.com/rust-lang/rust-clippy/pull/9471) +* [`suboptimal_flops`]: Now supports multiplication and subtraction operations + [#9581](https://github.com/rust-lang/rust-clippy/pull/9581) +* [`arithmetic_side_effects`]: Now detects cases with literals behind references + [#9587](https://github.com/rust-lang/rust-clippy/pull/9587) +* [`upper_case_acronyms`]: Now also checks enum names + [#9580](https://github.com/rust-lang/rust-clippy/pull/9580) +* [`needless_borrowed_reference`]: Now lints nested patterns + [#9573](https://github.com/rust-lang/rust-clippy/pull/9573) +* [`unnecessary_cast`]: Now works for non-trivial non-literal expressions + [#9576](https://github.com/rust-lang/rust-clippy/pull/9576) +* [`arithmetic_side_effects`]: Now detects operations with custom types + [#9559](https://github.com/rust-lang/rust-clippy/pull/9559) +* [`disallowed_methods`], [`disallowed_types`]: Not correctly lints types, functions and macros + with the same path + [#9495](https://github.com/rust-lang/rust-clippy/pull/9495) +* [`self_named_module_files`], [`mod_module_files`]: Now take remapped path prefixes into account + [#9475](https://github.com/rust-lang/rust-clippy/pull/9475) +* [`bool_to_int_with_if`]: Now detects the inverse if case + [#9476](https://github.com/rust-lang/rust-clippy/pull/9476) + +### False Positive Fixes + +* [`arithmetic_side_effects`]: Now allows operations that can't overflow + [#9474](https://github.com/rust-lang/rust-clippy/pull/9474) +* [`unnecessary_lazy_evaluations`]: No longer lints in external macros + [#9486](https://github.com/rust-lang/rust-clippy/pull/9486) +* [`needless_borrow`], [`explicit_auto_deref`]: No longer lint on unions that require the reference + [#9490](https://github.com/rust-lang/rust-clippy/pull/9490) +* [`almost_complete_letter_range`]: No longer lints in external macros + [#9467](https://github.com/rust-lang/rust-clippy/pull/9467) +* [`drop_copy`]: No longer lints on idiomatic cases in match arms + [#9491](https://github.com/rust-lang/rust-clippy/pull/9491) +* [`question_mark`]: No longer lints in const context + [#9487](https://github.com/rust-lang/rust-clippy/pull/9487) +* [`collapsible_if`]: Suggestion now work in macros + [#9410](https://github.com/rust-lang/rust-clippy/pull/9410) +* [`std_instead_of_core`]: No longer triggers on unstable modules + [#9545](https://github.com/rust-lang/rust-clippy/pull/9545) +* [`unused_peekable`]: No longer lints, if the peak is done in a closure or function + [#9465](https://github.com/rust-lang/rust-clippy/pull/9465) +* [`useless_attribute`]: No longer lints on `#[allow]` attributes for [`unsafe_removed_from_name`] + [#9593](https://github.com/rust-lang/rust-clippy/pull/9593) +* [`unnecessary_lazy_evaluations`]: No longer suggest switching to early evaluation when type has + custom `Drop` implementation + [#9551](https://github.com/rust-lang/rust-clippy/pull/9551) +* [`unnecessary_cast`]: No longer lints on negative hexadecimal literals when cast as floats + [#9609](https://github.com/rust-lang/rust-clippy/pull/9609) +* [`use_self`]: No longer lints in proc macros + [#9454](https://github.com/rust-lang/rust-clippy/pull/9454) +* [`never_loop`]: Now takes `let ... else` statements into consideration. + [#9496](https://github.com/rust-lang/rust-clippy/pull/9496) +* [`default_numeric_fallback`]: Now ignores constants + [#9636](https://github.com/rust-lang/rust-clippy/pull/9636) +* [`uninit_vec`]: No longer lints `Vec::set_len(0)` + [#9519](https://github.com/rust-lang/rust-clippy/pull/9519) +* [`arithmetic_side_effects`]: Now ignores references to integer types + [#9507](https://github.com/rust-lang/rust-clippy/pull/9507) +* [`large_stack_arrays`]: No longer lints inside static items + [#9466](https://github.com/rust-lang/rust-clippy/pull/9466) +* [`ref_option_ref`]: No longer lints if the inner reference is mutable + [#9684](https://github.com/rust-lang/rust-clippy/pull/9684) +* [`ptr_arg`]: No longer lints if the argument is used as an incomplete trait object + [#9645](https://github.com/rust-lang/rust-clippy/pull/9645) +* [`should_implement_trait`]: Now also works for `default` methods + [#9546](https://github.com/rust-lang/rust-clippy/pull/9546) + +### Suggestion Fixes/Improvements + +* [`derivable_impls`]: The suggestion is now machine applicable + [#9429](https://github.com/rust-lang/rust-clippy/pull/9429) +* [`match_single_binding`]: The suggestion now handles scrutinies with side effects better + [#9601](https://github.com/rust-lang/rust-clippy/pull/9601) +* [`zero_prefixed_literal`]: Only suggests using octal numbers, if this is possible + [#9652](https://github.com/rust-lang/rust-clippy/pull/9652) +* [`rc_buffer`]: The suggestion is no longer machine applicable to avoid semantic changes + [#9633](https://github.com/rust-lang/rust-clippy/pull/9633) +* [`print_literal`], [`write_literal`], [`uninlined_format_args`]: The suggestion now ignores + comments after the macro call. + [#9586](https://github.com/rust-lang/rust-clippy/pull/9586) +* [`expect_fun_call`]:Improved the suggestion for `format!` calls with captured variables + [#9586](https://github.com/rust-lang/rust-clippy/pull/9586) +* [`nonstandard_macro_braces`]: The suggestion is now machine applicable and will no longer + replace brackets inside the macro argument. + [#9499](https://github.com/rust-lang/rust-clippy/pull/9499) +* [`from_over_into`]: The suggestion is now a machine applicable and contains explanations + [#9649](https://github.com/rust-lang/rust-clippy/pull/9649) +* [`needless_return`]: The automatic suggestion now removes all required semicolons + [#9497](https://github.com/rust-lang/rust-clippy/pull/9497) +* [`to_string_in_format_args`]: The suggestion now keeps parenthesis around values + [#9590](https://github.com/rust-lang/rust-clippy/pull/9590) +* [`manual_assert`]: The suggestion now preserves comments + [#9479](https://github.com/rust-lang/rust-clippy/pull/9479) +* [`redundant_allocation`]: The suggestion applicability is now marked `MaybeIncorrect` to + avoid semantic changes + [#9634](https://github.com/rust-lang/rust-clippy/pull/9634) +* [`assertions_on_result_states`]: The suggestion has been corrected, for cases where the + `assert!` is not in a statement. + [#9453](https://github.com/rust-lang/rust-clippy/pull/9453) +* [`nonminimal_bool`]: The suggestion no longer expands macros + [#9457](https://github.com/rust-lang/rust-clippy/pull/9457) +* [`collapsible_match`]: Now specifies field names, when a struct is destructed + [#9685](https://github.com/rust-lang/rust-clippy/pull/9685) +* [`unnecessary_cast`]: The suggestion now adds parenthesis for negative numbers + [#9577](https://github.com/rust-lang/rust-clippy/pull/9577) +* [`redundant_closure`]: The suggestion now works for `impl FnMut` arguments + [#9556](https://github.com/rust-lang/rust-clippy/pull/9556) + +### ICE Fixes + +* [`unnecessary_to_owned`]: Avoid ICEs in favor of false negatives if information is missing + [#9505](https://github.com/rust-lang/rust-clippy/pull/9505) +* [`manual_range_contains`]: No longer ICEs on values behind references + [#9627](https://github.com/rust-lang/rust-clippy/pull/9627) +* [`needless_pass_by_value`]: No longer ICEs on unsized `dyn Fn` arguments + [#9531](https://github.com/rust-lang/rust-clippy/pull/9531) +* `*_interior_mutable_const` lints: no longer ICE on const unions containing `!Freeze` types + [#9539](https://github.com/rust-lang/rust-clippy/pull/9539) + +### Others + +* Released `rustc_tools_util` for version information on `Crates.io`. (Further adjustments will + not be published as part of this changelog) ## Rust 1.65 -Current stable, released 2022-11-03 +Released 2022-11-03 [3c7e7dbc...b52fb523](https://github.com/rust-lang/rust-clippy/compare/3c7e7dbc...b52fb523) @@ -3875,6 +4045,7 @@ Released 2018-09-13 [`alloc_instead_of_core`]: https://rust-lang.github.io/rust-clippy/master/index.html#alloc_instead_of_core [`allow_attributes_without_reason`]: https://rust-lang.github.io/rust-clippy/master/index.html#allow_attributes_without_reason [`almost_complete_letter_range`]: https://rust-lang.github.io/rust-clippy/master/index.html#almost_complete_letter_range +[`almost_complete_range`]: https://rust-lang.github.io/rust-clippy/master/index.html#almost_complete_range [`almost_swapped`]: https://rust-lang.github.io/rust-clippy/master/index.html#almost_swapped [`approx_constant`]: https://rust-lang.github.io/rust-clippy/master/index.html#approx_constant [`arithmetic_side_effects`]: https://rust-lang.github.io/rust-clippy/master/index.html#arithmetic_side_effects @@ -4353,6 +4524,8 @@ Released 2018-09-13 [`self_named_constructors`]: https://rust-lang.github.io/rust-clippy/master/index.html#self_named_constructors [`self_named_module_files`]: https://rust-lang.github.io/rust-clippy/master/index.html#self_named_module_files [`semicolon_if_nothing_returned`]: https://rust-lang.github.io/rust-clippy/master/index.html#semicolon_if_nothing_returned +[`semicolon_inside_block`]: https://rust-lang.github.io/rust-clippy/master/index.html#semicolon_inside_block +[`semicolon_outside_block`]: https://rust-lang.github.io/rust-clippy/master/index.html#semicolon_outside_block [`separated_literal_suffix`]: https://rust-lang.github.io/rust-clippy/master/index.html#separated_literal_suffix [`serde_api_misuse`]: https://rust-lang.github.io/rust-clippy/master/index.html#serde_api_misuse [`shadow_reuse`]: https://rust-lang.github.io/rust-clippy/master/index.html#shadow_reuse diff --git a/src/tools/clippy/Cargo.toml b/src/tools/clippy/Cargo.toml index fe425a2fb99..f8cb4b7219c 100644 --- a/src/tools/clippy/Cargo.toml +++ b/src/tools/clippy/Cargo.toml @@ -1,6 +1,6 @@ [package] name = "clippy" -version = "0.1.67" +version = "0.1.68" description = "A bunch of helpful lints to avoid common pitfalls in Rust" repository = "https://github.com/rust-lang/rust-clippy" readme = "README.md" @@ -23,7 +23,7 @@ path = "src/driver.rs" [dependencies] clippy_lints = { path = "clippy_lints" } semver = "1.0" -rustc_tools_util = "0.2.1" +rustc_tools_util = "0.3.0" tempfile = { version = "3.2", optional = true } termize = "0.1" @@ -55,7 +55,7 @@ tokio = { version = "1", features = ["io-util"] } rustc-semver = "1.1" [build-dependencies] -rustc_tools_util = "0.2.1" +rustc_tools_util = "0.3.0" [features] deny-warnings = ["clippy_lints/deny-warnings"] diff --git a/src/tools/clippy/book/src/README.md b/src/tools/clippy/book/src/README.md index 6248d588a89..23867df8efe 100644 --- a/src/tools/clippy/book/src/README.md +++ b/src/tools/clippy/book/src/README.md @@ -1,6 +1,6 @@ # Clippy -[](https://github.com/rust-lang/rust-clippy/actions?query=workflow%3A%22Clippy+Test%22+event%3Apush+branch%3Aauto) +[/badge.svg?branch=auto&event=push)](https://github.com/rust-lang/rust-clippy/actions?query=workflow%3A%22Clippy+Test+(bors)%22+event%3Apush+branch%3Aauto) [](https://github.com/rust-lang/rust-clippy#license) A collection of lints to catch common mistakes and improve your diff --git a/src/tools/clippy/build.rs b/src/tools/clippy/build.rs index b5484bec3c8..b79d09b0dd2 100644 --- a/src/tools/clippy/build.rs +++ b/src/tools/clippy/build.rs @@ -3,17 +3,5 @@ fn main() { println!("cargo:rustc-env=PROFILE={}", std::env::var("PROFILE").unwrap()); // Don't rebuild even if nothing changed println!("cargo:rerun-if-changed=build.rs"); - // forward git repo hashes we build at - println!( - "cargo:rustc-env=GIT_HASH={}", - rustc_tools_util::get_commit_hash().unwrap_or_default() - ); - println!( - "cargo:rustc-env=COMMIT_DATE={}", - rustc_tools_util::get_commit_date().unwrap_or_default() - ); - println!( - "cargo:rustc-env=RUSTC_RELEASE_CHANNEL={}", - rustc_tools_util::get_channel() - ); + rustc_tools_util::setup_version_info!(); } diff --git a/src/tools/clippy/clippy_lints/Cargo.toml b/src/tools/clippy/clippy_lints/Cargo.toml index aedff24c12c..a9f69b1ba63 100644 --- a/src/tools/clippy/clippy_lints/Cargo.toml +++ b/src/tools/clippy/clippy_lints/Cargo.toml @@ -1,6 +1,6 @@ [package] name = "clippy_lints" -version = "0.1.67" +version = "0.1.68" description = "A bunch of helpful lints to avoid common pitfalls in Rust" repository = "https://github.com/rust-lang/rust-clippy" readme = "README.md" diff --git a/src/tools/clippy/clippy_lints/src/almost_complete_letter_range.rs b/src/tools/clippy/clippy_lints/src/almost_complete_range.rs index 52beaf504a4..42e14b5cd94 100644 --- a/src/tools/clippy/clippy_lints/src/almost_complete_letter_range.rs +++ b/src/tools/clippy/clippy_lints/src/almost_complete_range.rs @@ -10,8 +10,8 @@ use rustc_span::Span; declare_clippy_lint! { /// ### What it does - /// Checks for ranges which almost include the entire range of letters from 'a' to 'z', but - /// don't because they're a half open range. + /// Checks for ranges which almost include the entire range of letters from 'a' to 'z' + /// or digits from '0' to '9', but don't because they're a half open range. /// /// ### Why is this bad? /// This (`'a'..'z'`) is almost certainly a typo meant to include all letters. @@ -25,21 +25,21 @@ declare_clippy_lint! { /// let _ = 'a'..='z'; /// ``` #[clippy::version = "1.63.0"] - pub ALMOST_COMPLETE_LETTER_RANGE, + pub ALMOST_COMPLETE_RANGE, suspicious, - "almost complete letter range" + "almost complete range" } -impl_lint_pass!(AlmostCompleteLetterRange => [ALMOST_COMPLETE_LETTER_RANGE]); +impl_lint_pass!(AlmostCompleteRange => [ALMOST_COMPLETE_RANGE]); -pub struct AlmostCompleteLetterRange { +pub struct AlmostCompleteRange { msrv: Msrv, } -impl AlmostCompleteLetterRange { +impl AlmostCompleteRange { pub fn new(msrv: Msrv) -> Self { Self { msrv } } } -impl EarlyLintPass for AlmostCompleteLetterRange { +impl EarlyLintPass for AlmostCompleteRange { fn check_expr(&mut self, cx: &EarlyContext<'_>, e: &Expr) { if let ExprKind::Range(Some(start), Some(end), RangeLimits::HalfOpen) = &e.kind { let ctxt = e.span.ctxt(); @@ -87,14 +87,18 @@ fn check_range(cx: &EarlyContext<'_>, span: Span, start: &Expr, end: &Expr, sugg Ok(LitKind::Byte(b'A') | LitKind::Char('A')), Ok(LitKind::Byte(b'Z') | LitKind::Char('Z')), ) + | ( + Ok(LitKind::Byte(b'0') | LitKind::Char('0')), + Ok(LitKind::Byte(b'9') | LitKind::Char('9')), + ) ) && !in_external_macro(cx.sess(), span) { span_lint_and_then( cx, - ALMOST_COMPLETE_LETTER_RANGE, + ALMOST_COMPLETE_RANGE, span, - "almost complete ascii letter range", + "almost complete ascii range", |diag| { if let Some((span, sugg)) = sugg { diag.span_suggestion( diff --git a/src/tools/clippy/clippy_lints/src/box_default.rs b/src/tools/clippy/clippy_lints/src/box_default.rs index 36daceabe0b..91900542af8 100644 --- a/src/tools/clippy/clippy_lints/src/box_default.rs +++ b/src/tools/clippy/clippy_lints/src/box_default.rs @@ -30,7 +30,7 @@ declare_clippy_lint! { /// ```rust /// let x: Box<String> = Box::default(); /// ``` - #[clippy::version = "1.65.0"] + #[clippy::version = "1.66.0"] pub BOX_DEFAULT, perf, "Using Box::new(T::default()) instead of Box::default()" diff --git a/src/tools/clippy/clippy_lints/src/casts/mod.rs b/src/tools/clippy/clippy_lints/src/casts/mod.rs index c6d505c4a18..161e3a698e9 100644 --- a/src/tools/clippy/clippy_lints/src/casts/mod.rs +++ b/src/tools/clippy/clippy_lints/src/casts/mod.rs @@ -641,7 +641,7 @@ declare_clippy_lint! { /// ```rust,ignore /// let _: = 0_u64; /// ``` - #[clippy::version = "1.64.0"] + #[clippy::version = "1.66.0"] pub CAST_NAN_TO_INT, suspicious, "casting a known floating-point NaN into an integer" diff --git a/src/tools/clippy/clippy_lints/src/declared_lints.rs b/src/tools/clippy/clippy_lints/src/declared_lints.rs index e4d76f07d6b..3cd7d1d7e72 100644 --- a/src/tools/clippy/clippy_lints/src/declared_lints.rs +++ b/src/tools/clippy/clippy_lints/src/declared_lints.rs @@ -35,7 +35,7 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[ crate::utils::internal_lints::produce_ice::PRODUCE_ICE_INFO, #[cfg(feature = "internal")] crate::utils::internal_lints::unnecessary_def_path::UNNECESSARY_DEF_PATH_INFO, - crate::almost_complete_letter_range::ALMOST_COMPLETE_LETTER_RANGE_INFO, + crate::almost_complete_range::ALMOST_COMPLETE_RANGE_INFO, crate::approx_const::APPROX_CONSTANT_INFO, crate::as_conversions::AS_CONVERSIONS_INFO, crate::asm_syntax::INLINE_ASM_X86_ATT_SYNTAX_INFO, @@ -525,6 +525,8 @@ pub(crate) static LINTS: &[&crate::LintInfo] = &[ crate::returns::NEEDLESS_RETURN_INFO, crate::same_name_method::SAME_NAME_METHOD_INFO, crate::self_named_constructors::SELF_NAMED_CONSTRUCTORS_INFO, + crate::semicolon_block::SEMICOLON_INSIDE_BLOCK_INFO, + crate::semicolon_block::SEMICOLON_OUTSIDE_BLOCK_INFO, crate::semicolon_if_nothing_returned::SEMICOLON_IF_NOTHING_RETURNED_INFO, crate::serde_api::SERDE_API_MISUSE_INFO, crate::shadow::SHADOW_REUSE_INFO, diff --git a/src/tools/clippy/clippy_lints/src/dereference.rs b/src/tools/clippy/clippy_lints/src/dereference.rs index 38329659e02..7b43d8ccc67 100644 --- a/src/tools/clippy/clippy_lints/src/dereference.rs +++ b/src/tools/clippy/clippy_lints/src/dereference.rs @@ -1244,7 +1244,7 @@ fn is_mixed_projection_predicate<'tcx>( let mut projection_ty = projection_predicate.projection_ty; loop { match projection_ty.self_ty().kind() { - ty::Projection(inner_projection_ty) => { + ty::Alias(ty::Projection, inner_projection_ty) => { projection_ty = *inner_projection_ty; } ty::Param(param_ty) => { @@ -1330,7 +1330,7 @@ fn replace_types<'tcx>( && let Some(term_ty) = projection_predicate.term.ty() && let ty::Param(term_param_ty) = term_ty.kind() { - let item_def_id = projection_predicate.projection_ty.item_def_id; + let item_def_id = projection_predicate.projection_ty.def_id; let assoc_item = cx.tcx.associated_item(item_def_id); let projection = cx.tcx .mk_projection(assoc_item.def_id, cx.tcx.mk_substs_trait(new_ty, [])); @@ -1390,10 +1390,15 @@ fn ty_auto_deref_stability<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>, precedenc continue; }, ty::Param(_) => TyPosition::new_deref_stable_for_result(precedence, ty), - ty::Projection(_) if ty.has_non_region_param() => TyPosition::new_deref_stable_for_result(precedence, ty), - ty::Infer(_) | ty::Error(_) | ty::Bound(..) | ty::Opaque(..) | ty::Placeholder(_) | ty::Dynamic(..) => { - Position::ReborrowStable(precedence).into() + ty::Alias(ty::Projection, _) if ty.has_non_region_param() => { + TyPosition::new_deref_stable_for_result(precedence, ty) }, + ty::Infer(_) + | ty::Error(_) + | ty::Bound(..) + | ty::Alias(ty::Opaque, ..) + | ty::Placeholder(_) + | ty::Dynamic(..) => Position::ReborrowStable(precedence).into(), ty::Adt(..) if ty.has_placeholders() || ty.has_opaque_types() => { Position::ReborrowStable(precedence).into() }, @@ -1417,7 +1422,7 @@ fn ty_auto_deref_stability<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>, precedenc | ty::Closure(..) | ty::Never | ty::Tuple(_) - | ty::Projection(_) => { + | ty::Alias(ty::Projection, _) => { Position::DerefStable(precedence, ty.is_sized(cx.tcx, cx.param_env.without_caller_bounds())).into() }, }; diff --git a/src/tools/clippy/clippy_lints/src/derive.rs b/src/tools/clippy/clippy_lints/src/derive.rs index 9e596ca8157..cf3483d4c00 100644 --- a/src/tools/clippy/clippy_lints/src/derive.rs +++ b/src/tools/clippy/clippy_lints/src/derive.rs @@ -15,7 +15,7 @@ use rustc_middle::hir::nested_filter; use rustc_middle::traits::Reveal; use rustc_middle::ty::{ self, Binder, BoundConstness, Clause, GenericParamDefKind, ImplPolarity, ParamEnv, PredicateKind, TraitPredicate, - TraitRef, Ty, TyCtxt, + Ty, TyCtxt, }; use rustc_session::{declare_lint_pass, declare_tool_lint}; use rustc_span::source_map::Span; @@ -513,10 +513,7 @@ fn param_env_for_derived_eq(tcx: TyCtxt<'_>, did: DefId, eq_trait_id: DefId) -> tcx.mk_predicates(ty_predicates.iter().map(|&(p, _)| p).chain( params.iter().filter(|&&(_, needs_eq)| needs_eq).map(|&(param, _)| { tcx.mk_predicate(Binder::dummy(PredicateKind::Clause(Clause::Trait(TraitPredicate { - trait_ref: TraitRef::new( - eq_trait_id, - tcx.mk_substs(std::iter::once(tcx.mk_param_from_def(param))), - ), + trait_ref: tcx.mk_trait_ref(eq_trait_id, [tcx.mk_param_from_def(param)]), constness: BoundConstness::NotConst, polarity: ImplPolarity::Positive, })))) diff --git a/src/tools/clippy/clippy_lints/src/disallowed_macros.rs b/src/tools/clippy/clippy_lints/src/disallowed_macros.rs index 68122b4cef5..1971cab64ef 100644 --- a/src/tools/clippy/clippy_lints/src/disallowed_macros.rs +++ b/src/tools/clippy/clippy_lints/src/disallowed_macros.rs @@ -47,7 +47,7 @@ declare_clippy_lint! { /// value: usize, /// } /// ``` - #[clippy::version = "1.65.0"] + #[clippy::version = "1.66.0"] pub DISALLOWED_MACROS, style, "use of a disallowed macro" diff --git a/src/tools/clippy/clippy_lints/src/format_args.rs b/src/tools/clippy/clippy_lints/src/format_args.rs index 111b624f529..69f7c152fc4 100644 --- a/src/tools/clippy/clippy_lints/src/format_args.rs +++ b/src/tools/clippy/clippy_lints/src/format_args.rs @@ -2,7 +2,8 @@ use clippy_utils::diagnostics::{span_lint_and_sugg, span_lint_and_then}; use clippy_utils::is_diag_trait_item; use clippy_utils::macros::FormatParamKind::{Implicit, Named, NamedInline, Numbered, Starred}; use clippy_utils::macros::{ - is_format_macro, is_panic, root_macro_call, Count, FormatArg, FormatArgsExpn, FormatParam, FormatParamUsage, + is_assert_macro, is_format_macro, is_panic, root_macro_call, Count, FormatArg, FormatArgsExpn, FormatParam, + FormatParamUsage, }; use clippy_utils::msrvs::{self, Msrv}; use clippy_utils::source::snippet_opt; @@ -122,7 +123,7 @@ declare_clippy_lint! { /// /// If a format string contains a numbered argument that cannot be inlined /// nothing will be suggested, e.g. `println!("{0}={1}", var, 1+2)`. - #[clippy::version = "1.65.0"] + #[clippy::version = "1.66.0"] pub UNINLINED_FORMAT_ARGS, style, "using non-inlined variables in `format!` calls" @@ -290,8 +291,9 @@ fn check_uninlined_args( if args.format_string.span.from_expansion() { return; } - if call_site.edition() < Edition2021 && is_panic(cx, def_id) { - // panic! before 2021 edition considers a single string argument as non-format + if call_site.edition() < Edition2021 && (is_panic(cx, def_id) || is_assert_macro(cx, def_id)) { + // panic!, assert!, and debug_assert! before 2021 edition considers a single string argument as + // non-format return; } diff --git a/src/tools/clippy/clippy_lints/src/from_over_into.rs b/src/tools/clippy/clippy_lints/src/from_over_into.rs index 0634b2798fe..a92f7548ff2 100644 --- a/src/tools/clippy/clippy_lints/src/from_over_into.rs +++ b/src/tools/clippy/clippy_lints/src/from_over_into.rs @@ -10,7 +10,7 @@ use rustc_hir::{ TyKind, }; use rustc_lint::{LateContext, LateLintPass}; -use rustc_middle::hir::nested_filter::OnlyBodies; +use rustc_middle::{hir::nested_filter::OnlyBodies, ty}; use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::symbol::{kw, sym}; use rustc_span::{Span, Symbol}; @@ -78,6 +78,7 @@ impl<'tcx> LateLintPass<'tcx> for FromOverInto { && let Some(GenericArgs { args: [GenericArg::Type(target_ty)], .. }) = into_trait_seg.args && let Some(middle_trait_ref) = cx.tcx.impl_trait_ref(item.owner_id) && cx.tcx.is_diagnostic_item(sym::Into, middle_trait_ref.def_id) + && !matches!(middle_trait_ref.substs.type_at(1).kind(), ty::Alias(ty::Opaque, _)) { span_lint_and_then( cx, diff --git a/src/tools/clippy/clippy_lints/src/future_not_send.rs b/src/tools/clippy/clippy_lints/src/future_not_send.rs index 61934a91426..989f83cf80d 100644 --- a/src/tools/clippy/clippy_lints/src/future_not_send.rs +++ b/src/tools/clippy/clippy_lints/src/future_not_send.rs @@ -4,7 +4,7 @@ use rustc_hir::intravisit::FnKind; use rustc_hir::{Body, FnDecl, HirId}; use rustc_infer::infer::TyCtxtInferExt; use rustc_lint::{LateContext, LateLintPass}; -use rustc_middle::ty::{Clause, EarlyBinder, Opaque, PredicateKind}; +use rustc_middle::ty::{self, AliasTy, Clause, EarlyBinder, PredicateKind}; use rustc_session::{declare_lint_pass, declare_tool_lint}; use rustc_span::{sym, Span}; use rustc_trait_selection::traits::error_reporting::suggestions::TypeErrCtxtExt; @@ -62,11 +62,11 @@ impl<'tcx> LateLintPass<'tcx> for FutureNotSend { return; } let ret_ty = return_ty(cx, hir_id); - if let Opaque(id, subst) = *ret_ty.kind() { - let preds = cx.tcx.explicit_item_bounds(id); + if let ty::Alias(ty::Opaque, AliasTy { def_id, substs, .. }) = *ret_ty.kind() { + let preds = cx.tcx.explicit_item_bounds(def_id); let mut is_future = false; for &(p, _span) in preds { - let p = EarlyBinder(p).subst(cx.tcx, subst); + let p = EarlyBinder(p).subst(cx.tcx, substs); if let Some(trait_pred) = p.to_opt_poly_trait_pred() { if Some(trait_pred.skip_binder().trait_ref.def_id) == cx.tcx.lang_items().future_trait() { is_future = true; diff --git a/src/tools/clippy/clippy_lints/src/implicit_saturating_add.rs b/src/tools/clippy/clippy_lints/src/implicit_saturating_add.rs index bf1351829c6..6e19343931e 100644 --- a/src/tools/clippy/clippy_lints/src/implicit_saturating_add.rs +++ b/src/tools/clippy/clippy_lints/src/implicit_saturating_add.rs @@ -31,7 +31,7 @@ declare_clippy_lint! { /// /// u = u.saturating_add(1); /// ``` - #[clippy::version = "1.65.0"] + #[clippy::version = "1.66.0"] pub IMPLICIT_SATURATING_ADD, style, "Perform saturating addition instead of implicitly checking max bound of data type" diff --git a/src/tools/clippy/clippy_lints/src/indexing_slicing.rs b/src/tools/clippy/clippy_lints/src/indexing_slicing.rs index 4cd7dff4cfd..eebfb753a0c 100644 --- a/src/tools/clippy/clippy_lints/src/indexing_slicing.rs +++ b/src/tools/clippy/clippy_lints/src/indexing_slicing.rs @@ -1,13 +1,13 @@ //! lint on indexing and slicing operations use clippy_utils::consts::{constant, Constant}; -use clippy_utils::diagnostics::{span_lint, span_lint_and_help}; +use clippy_utils::diagnostics::{span_lint, span_lint_and_then}; use clippy_utils::higher; use rustc_ast::ast::RangeLimits; use rustc_hir::{Expr, ExprKind}; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::ty; -use rustc_session::{declare_lint_pass, declare_tool_lint}; +use rustc_session::{declare_tool_lint, impl_lint_pass}; declare_clippy_lint! { /// ### What it does @@ -82,15 +82,29 @@ declare_clippy_lint! { "indexing/slicing usage" } -declare_lint_pass!(IndexingSlicing => [INDEXING_SLICING, OUT_OF_BOUNDS_INDEXING]); +impl_lint_pass!(IndexingSlicing => [INDEXING_SLICING, OUT_OF_BOUNDS_INDEXING]); + +#[derive(Copy, Clone)] +pub struct IndexingSlicing { + suppress_restriction_lint_in_const: bool, +} + +impl IndexingSlicing { + pub fn new(suppress_restriction_lint_in_const: bool) -> Self { + Self { + suppress_restriction_lint_in_const, + } + } +} impl<'tcx> LateLintPass<'tcx> for IndexingSlicing { fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) { - if cx.tcx.hir().is_inside_const_context(expr.hir_id) { + if self.suppress_restriction_lint_in_const && cx.tcx.hir().is_inside_const_context(expr.hir_id) { return; } if let ExprKind::Index(array, index) = &expr.kind { + let note = "the suggestion might not be applicable in constant blocks"; let ty = cx.typeck_results().expr_ty(array).peel_refs(); if let Some(range) = higher::Range::hir(index) { // Ranged indexes, i.e., &x[n..m], &x[n..], &x[..n] and &x[..] @@ -141,7 +155,13 @@ impl<'tcx> LateLintPass<'tcx> for IndexingSlicing { (None, None) => return, // [..] is ok. }; - span_lint_and_help(cx, INDEXING_SLICING, expr.span, "slicing may panic", None, help_msg); + span_lint_and_then(cx, INDEXING_SLICING, expr.span, "slicing may panic", |diag| { + diag.help(help_msg); + + if cx.tcx.hir().is_inside_const_context(expr.hir_id) { + diag.note(note); + } + }); } else { // Catchall non-range index, i.e., [n] or [n << m] if let ty::Array(..) = ty.kind() { @@ -156,14 +176,13 @@ impl<'tcx> LateLintPass<'tcx> for IndexingSlicing { } } - span_lint_and_help( - cx, - INDEXING_SLICING, - expr.span, - "indexing may panic", - None, - "consider using `.get(n)` or `.get_mut(n)` instead", - ); + span_lint_and_then(cx, INDEXING_SLICING, expr.span, "indexing may panic", |diag| { + diag.help("consider using `.get(n)` or `.get_mut(n)` instead"); + + if cx.tcx.hir().is_inside_const_context(expr.hir_id) { + diag.note(note); + } + }); } } } diff --git a/src/tools/clippy/clippy_lints/src/len_zero.rs b/src/tools/clippy/clippy_lints/src/len_zero.rs index 4c133c06a15..e88d1764a24 100644 --- a/src/tools/clippy/clippy_lints/src/len_zero.rs +++ b/src/tools/clippy/clippy_lints/src/len_zero.rs @@ -1,13 +1,13 @@ use clippy_utils::diagnostics::{span_lint, span_lint_and_sugg, span_lint_and_then}; use clippy_utils::source::snippet_with_applicability; -use clippy_utils::{get_item_name, get_parent_as_impl, is_lint_allowed}; +use clippy_utils::{get_item_name, get_parent_as_impl, is_lint_allowed, peel_ref_operators}; use if_chain::if_chain; use rustc_ast::ast::LitKind; use rustc_errors::Applicability; use rustc_hir::def_id::DefIdSet; use rustc_hir::{ def_id::DefId, AssocItemKind, BinOpKind, Expr, ExprKind, FnRetTy, ImplItem, ImplItemKind, ImplicitSelfKind, Item, - ItemKind, Mutability, Node, TraitItemRef, TyKind, + ItemKind, Mutability, Node, TraitItemRef, TyKind, UnOp, }; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::ty::{self, AssocKind, FnSig, Ty}; @@ -16,6 +16,7 @@ use rustc_span::{ source_map::{Span, Spanned, Symbol}, symbol::sym, }; +use std::borrow::Cow; declare_clippy_lint! { /// ### What it does @@ -428,16 +429,23 @@ fn check_len( fn check_empty_expr(cx: &LateContext<'_>, span: Span, lit1: &Expr<'_>, lit2: &Expr<'_>, op: &str) { if (is_empty_array(lit2) || is_empty_string(lit2)) && has_is_empty(cx, lit1) { let mut applicability = Applicability::MachineApplicable; + + let lit1 = peel_ref_operators(cx, lit1); + let mut lit_str = snippet_with_applicability(cx, lit1.span, "_", &mut applicability); + + // Wrap the expression in parentheses if it's a deref expression. Otherwise operator precedence will + // cause the code to dereference boolean(won't compile). + if let ExprKind::Unary(UnOp::Deref, _) = lit1.kind { + lit_str = Cow::from(format!("({lit_str})")); + } + span_lint_and_sugg( cx, COMPARISON_TO_EMPTY, span, "comparison to empty slice", &format!("using `{op}is_empty` is clearer and more explicit"), - format!( - "{op}{}.is_empty()", - snippet_with_applicability(cx, lit1.span, "_", &mut applicability) - ), + format!("{op}{lit_str}.is_empty()"), applicability, ); } @@ -493,7 +501,7 @@ fn has_is_empty(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool { .filter_by_name_unhygienic(is_empty) .any(|item| is_is_empty(cx, item)) }), - ty::Projection(ref proj) => has_is_empty_impl(cx, proj.item_def_id), + ty::Alias(ty::Projection, ref proj) => has_is_empty_impl(cx, proj.def_id), ty::Adt(id, _) => has_is_empty_impl(cx, id.did()), ty::Array(..) | ty::Slice(..) | ty::Str => true, _ => false, diff --git a/src/tools/clippy/clippy_lints/src/lib.rs b/src/tools/clippy/clippy_lints/src/lib.rs index 7b17d8a156d..39850d59803 100644 --- a/src/tools/clippy/clippy_lints/src/lib.rs +++ b/src/tools/clippy/clippy_lints/src/lib.rs @@ -66,7 +66,7 @@ mod declared_lints; mod renamed_lints; // begin lints modules, do not remove this comment, it’s used in `update_lints` -mod almost_complete_letter_range; +mod almost_complete_range; mod approx_const; mod as_conversions; mod asm_syntax; @@ -256,6 +256,7 @@ mod return_self_not_must_use; mod returns; mod same_name_method; mod self_named_constructors; +mod semicolon_block; mod semicolon_if_nothing_returned; mod serde_api; mod shadow; @@ -507,9 +508,20 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: } let arithmetic_side_effects_allowed = conf.arithmetic_side_effects_allowed.clone(); + let arithmetic_side_effects_allowed_binary = conf.arithmetic_side_effects_allowed_binary.clone(); + let arithmetic_side_effects_allowed_unary = conf.arithmetic_side_effects_allowed_unary.clone(); store.register_late_pass(move |_| { Box::new(operators::arithmetic_side_effects::ArithmeticSideEffects::new( - arithmetic_side_effects_allowed.clone(), + arithmetic_side_effects_allowed + .iter() + .flat_map(|el| [[el.clone(), "*".to_string()], ["*".to_string(), el.clone()]]) + .chain(arithmetic_side_effects_allowed_binary.clone()) + .collect(), + arithmetic_side_effects_allowed + .iter() + .chain(arithmetic_side_effects_allowed_unary.iter()) + .cloned() + .collect(), )) }); store.register_late_pass(|_| Box::new(utils::dump_hir::DumpHir)); @@ -538,7 +550,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(|_| Box::new(needless_bool::NeedlessBool)); store.register_late_pass(|_| Box::new(needless_bool::BoolComparison)); store.register_late_pass(|_| Box::new(needless_for_each::NeedlessForEach)); - store.register_late_pass(|_| Box::new(misc::MiscLints)); + store.register_late_pass(|_| Box::<misc::LintPass>::default()); store.register_late_pass(|_| Box::new(eta_reduction::EtaReduction)); store.register_late_pass(|_| Box::new(mut_mut::MutMut)); store.register_late_pass(|_| Box::new(mut_reference::UnnecessaryMutPassed)); @@ -561,6 +573,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: let avoid_breaking_exported_api = conf.avoid_breaking_exported_api; let allow_expect_in_tests = conf.allow_expect_in_tests; let allow_unwrap_in_tests = conf.allow_unwrap_in_tests; + let suppress_restriction_lint_in_const = conf.suppress_restriction_lint_in_const; store.register_late_pass(move |_| Box::new(approx_const::ApproxConstant::new(msrv()))); store.register_late_pass(move |_| { Box::new(methods::Methods::new( @@ -682,7 +695,11 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(|_| Box::new(inherent_impl::MultipleInherentImpl)); store.register_late_pass(|_| Box::new(neg_cmp_op_on_partial_ord::NoNegCompOpForPartialOrd)); store.register_late_pass(|_| Box::new(unwrap::Unwrap)); - store.register_late_pass(|_| Box::new(indexing_slicing::IndexingSlicing)); + store.register_late_pass(move |_| { + Box::new(indexing_slicing::IndexingSlicing::new( + suppress_restriction_lint_in_const, + )) + }); store.register_late_pass(|_| Box::new(non_copy_const::NonCopyConst)); store.register_late_pass(|_| Box::new(ptr_offset_with_cast::PtrOffsetWithCast)); store.register_late_pass(|_| Box::new(redundant_clone::RedundantClone)); @@ -859,7 +876,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(|_| Box::new(rc_clone_in_vec_init::RcCloneInVecInit)); store.register_early_pass(|| Box::<duplicate_mod::DuplicateMod>::default()); store.register_early_pass(|| Box::new(unused_rounding::UnusedRounding)); - store.register_early_pass(move || Box::new(almost_complete_letter_range::AlmostCompleteLetterRange::new(msrv()))); + store.register_early_pass(move || Box::new(almost_complete_range::AlmostCompleteRange::new(msrv()))); store.register_late_pass(|_| Box::new(swap_ptr_to_ref::SwapPtrToRef)); store.register_late_pass(|_| Box::new(mismatching_type_param_order::TypeParamMismatch)); store.register_late_pass(|_| Box::new(read_zero_byte_vec::ReadZeroByteVec)); @@ -884,6 +901,7 @@ pub fn register_plugins(store: &mut rustc_lint::LintStore, sess: &Session, conf: store.register_late_pass(|_| Box::new(from_raw_with_void_ptr::FromRawWithVoidPtr)); store.register_late_pass(|_| Box::new(suspicious_xor_used_as_pow::ConfusingXorAndPow)); store.register_late_pass(move |_| Box::new(manual_is_ascii_check::ManualIsAsciiCheck::new(msrv()))); + store.register_late_pass(|_| Box::new(semicolon_block::SemicolonBlock)); // add lints here, do not remove this comment, it's used in `new_lint` } diff --git a/src/tools/clippy/clippy_lints/src/loops/utils.rs b/src/tools/clippy/clippy_lints/src/loops/utils.rs index b6f4cf7bbb3..28ee24309cc 100644 --- a/src/tools/clippy/clippy_lints/src/loops/utils.rs +++ b/src/tools/clippy/clippy_lints/src/loops/utils.rs @@ -25,7 +25,6 @@ pub(super) struct IncrementVisitor<'a, 'tcx> { cx: &'a LateContext<'tcx>, // context reference states: HirIdMap<IncrementVisitorVarState>, // incremented variables depth: u32, // depth of conditional expressions - done: bool, } impl<'a, 'tcx> IncrementVisitor<'a, 'tcx> { @@ -34,7 +33,6 @@ impl<'a, 'tcx> IncrementVisitor<'a, 'tcx> { cx, states: HirIdMap::default(), depth: 0, - done: false, } } @@ -51,10 +49,6 @@ impl<'a, 'tcx> IncrementVisitor<'a, 'tcx> { impl<'a, 'tcx> Visitor<'tcx> for IncrementVisitor<'a, 'tcx> { fn visit_expr(&mut self, expr: &'tcx Expr<'_>) { - if self.done { - return; - } - // If node is a variable if let Some(def_id) = path_to_local(expr) { if let Some(parent) = get_parent_expr(self.cx, expr) { @@ -95,7 +89,9 @@ impl<'a, 'tcx> Visitor<'tcx> for IncrementVisitor<'a, 'tcx> { walk_expr(self, expr); self.depth -= 1; } else if let ExprKind::Continue(_) = expr.kind { - self.done = true; + // If we see a `continue` block, then we increment depth so that the IncrementVisitor + // state will be set to DontWarn if we see the variable being modified anywhere afterwards. + self.depth += 1; } else { walk_expr(self, expr); } diff --git a/src/tools/clippy/clippy_lints/src/manual_assert.rs b/src/tools/clippy/clippy_lints/src/manual_assert.rs index b8ed9b9ec18..4277455a3a2 100644 --- a/src/tools/clippy/clippy_lints/src/manual_assert.rs +++ b/src/tools/clippy/clippy_lints/src/manual_assert.rs @@ -2,7 +2,7 @@ use crate::rustc_lint::LintContext; use clippy_utils::diagnostics::span_lint_and_then; use clippy_utils::macros::{root_macro_call, FormatArgsExpn}; use clippy_utils::source::snippet_with_applicability; -use clippy_utils::{peel_blocks_with_stmt, span_extract_comment, sugg}; +use clippy_utils::{is_else_clause, peel_blocks_with_stmt, span_extract_comment, sugg}; use rustc_errors::Applicability; use rustc_hir::{Expr, ExprKind, UnOp}; use rustc_lint::{LateContext, LateLintPass}; @@ -47,6 +47,10 @@ impl<'tcx> LateLintPass<'tcx> for ManualAssert { if cx.tcx.item_name(macro_call.def_id) == sym::panic; if !cx.tcx.sess.source_map().is_multiline(cond.span); if let Some(format_args) = FormatArgsExpn::find_nested(cx, then, macro_call.expn); + // Don't change `else if foo { panic!(..) }` to `else { assert!(foo, ..) }` as it just + // shuffles the condition around. + // Should this have a config value? + if !is_else_clause(cx.tcx, expr); then { let mut applicability = Applicability::MachineApplicable; let format_args_snip = snippet_with_applicability(cx, format_args.inputs_span(), "..", &mut applicability); diff --git a/src/tools/clippy/clippy_lints/src/manual_is_ascii_check.rs b/src/tools/clippy/clippy_lints/src/manual_is_ascii_check.rs index 5ab049d8d13..d9ef7dffa02 100644 --- a/src/tools/clippy/clippy_lints/src/manual_is_ascii_check.rs +++ b/src/tools/clippy/clippy_lints/src/manual_is_ascii_check.rs @@ -1,11 +1,12 @@ use clippy_utils::msrvs::{self, Msrv}; -use clippy_utils::{diagnostics::span_lint_and_sugg, in_constant, macros::root_macro_call, source::snippet}; +use clippy_utils::{diagnostics::span_lint_and_sugg, higher, in_constant, macros::root_macro_call, source::snippet}; +use rustc_ast::ast::RangeLimits; use rustc_ast::LitKind::{Byte, Char}; use rustc_errors::Applicability; -use rustc_hir::{Expr, ExprKind, PatKind, RangeEnd}; +use rustc_hir::{BorrowKind, Expr, ExprKind, PatKind, RangeEnd}; use rustc_lint::{LateContext, LateLintPass}; use rustc_session::{declare_tool_lint, impl_lint_pass}; -use rustc_span::{def_id::DefId, sym}; +use rustc_span::{def_id::DefId, sym, Span}; declare_clippy_lint! { /// ### What it does @@ -23,6 +24,10 @@ declare_clippy_lint! { /// assert!(matches!(b'X', b'A'..=b'Z')); /// assert!(matches!('2', '0'..='9')); /// assert!(matches!('x', 'A'..='Z' | 'a'..='z')); + /// + /// ('0'..='9').contains(&'0'); + /// ('a'..='z').contains(&'a'); + /// ('A'..='Z').contains(&'A'); /// } /// ``` /// Use instead: @@ -32,6 +37,10 @@ declare_clippy_lint! { /// assert!(b'X'.is_ascii_uppercase()); /// assert!('2'.is_ascii_digit()); /// assert!('x'.is_ascii_alphabetic()); + /// + /// '0'.is_ascii_digit(); + /// 'a'.is_ascii_lowercase(); + /// 'A'.is_ascii_uppercase(); /// } /// ``` #[clippy::version = "1.66.0"] @@ -75,40 +84,21 @@ impl<'tcx> LateLintPass<'tcx> for ManualIsAsciiCheck { return; } - let Some(macro_call) = root_macro_call(expr.span) else { return }; - - if is_matches_macro(cx, macro_call.def_id) { + if let Some(macro_call) = root_macro_call(expr.span) + && is_matches_macro(cx, macro_call.def_id) { if let ExprKind::Match(recv, [arm, ..], _) = expr.kind { let range = check_pat(&arm.pat.kind); - - if let Some(sugg) = match range { - CharRange::UpperChar => Some("is_ascii_uppercase"), - CharRange::LowerChar => Some("is_ascii_lowercase"), - CharRange::FullChar => Some("is_ascii_alphabetic"), - CharRange::Digit => Some("is_ascii_digit"), - CharRange::Otherwise => None, - } { - let default_snip = ".."; - // `snippet_with_applicability` may set applicability to `MaybeIncorrect` for - // macro span, so we check applicability manually by comparing `recv` is not default. - let recv = snippet(cx, recv.span, default_snip); - - let applicability = if recv == default_snip { - Applicability::HasPlaceholders - } else { - Applicability::MachineApplicable - }; - - span_lint_and_sugg( - cx, - MANUAL_IS_ASCII_CHECK, - macro_call.span, - "manual check for common ascii range", - "try", - format!("{recv}.{sugg}()"), - applicability, - ); - } + check_is_ascii(cx, macro_call.span, recv, &range); + } + } else if let ExprKind::MethodCall(path, receiver, [arg], ..) = expr.kind + && path.ident.name == sym!(contains) + && let Some(higher::Range { start: Some(start), end: Some(end), limits: RangeLimits::Closed }) + = higher::Range::hir(receiver) { + let range = check_range(start, end); + if let ExprKind::AddrOf(BorrowKind::Ref, _, e) = arg.kind { + check_is_ascii(cx, expr.span, e, &range); + } else { + check_is_ascii(cx, expr.span, arg, &range); } } } @@ -116,6 +106,37 @@ impl<'tcx> LateLintPass<'tcx> for ManualIsAsciiCheck { extract_msrv_attr!(LateContext); } +fn check_is_ascii(cx: &LateContext<'_>, span: Span, recv: &Expr<'_>, range: &CharRange) { + if let Some(sugg) = match range { + CharRange::UpperChar => Some("is_ascii_uppercase"), + CharRange::LowerChar => Some("is_ascii_lowercase"), + CharRange::FullChar => Some("is_ascii_alphabetic"), + CharRange::Digit => Some("is_ascii_digit"), + CharRange::Otherwise => None, + } { + let default_snip = ".."; + // `snippet_with_applicability` may set applicability to `MaybeIncorrect` for + // macro span, so we check applicability manually by comparing `recv` is not default. + let recv = snippet(cx, recv.span, default_snip); + + let applicability = if recv == default_snip { + Applicability::HasPlaceholders + } else { + Applicability::MachineApplicable + }; + + span_lint_and_sugg( + cx, + MANUAL_IS_ASCII_CHECK, + span, + "manual check for common ascii range", + "try", + format!("{recv}.{sugg}()"), + applicability, + ); + } +} + fn check_pat(pat_kind: &PatKind<'_>) -> CharRange { match pat_kind { PatKind::Or(pats) => { diff --git a/src/tools/clippy/clippy_lints/src/manual_let_else.rs b/src/tools/clippy/clippy_lints/src/manual_let_else.rs index 874d36ca9f4..9c6f8b43c07 100644 --- a/src/tools/clippy/clippy_lints/src/manual_let_else.rs +++ b/src/tools/clippy/clippy_lints/src/manual_let_else.rs @@ -151,7 +151,12 @@ fn emit_manual_let_else(cx: &LateContext<'_>, span: Span, expr: &Expr<'_>, pat: } else { format!("{{ {sn_else} }}") }; - let sugg = format!("let {sn_pat} = {sn_expr} else {else_bl};"); + let sn_bl = if matches!(pat.kind, PatKind::Or(..)) { + format!("({sn_pat})") + } else { + sn_pat.into_owned() + }; + let sugg = format!("let {sn_bl} = {sn_expr} else {else_bl};"); diag.span_suggestion(span, "consider writing", sugg, app); }, ); diff --git a/src/tools/clippy/clippy_lints/src/manual_retain.rs b/src/tools/clippy/clippy_lints/src/manual_retain.rs index c1e6c82487d..72cdb9c1736 100644 --- a/src/tools/clippy/clippy_lints/src/manual_retain.rs +++ b/src/tools/clippy/clippy_lints/src/manual_retain.rs @@ -70,7 +70,8 @@ impl<'tcx> LateLintPass<'tcx> for ManualRetain { && seg.args.is_none() && let hir::ExprKind::MethodCall(_, target_expr, [], _) = &collect_expr.kind && let Some(collect_def_id) = cx.typeck_results().type_dependent_def_id(collect_expr.hir_id) - && match_def_path(cx, collect_def_id, &paths::CORE_ITER_COLLECT) { + && cx.tcx.is_diagnostic_item(sym::iterator_collect_fn, collect_def_id) + { check_into_iter(cx, parent_expr, left_expr, target_expr, &self.msrv); check_iter(cx, parent_expr, left_expr, target_expr, &self.msrv); check_to_owned(cx, parent_expr, left_expr, target_expr, &self.msrv); diff --git a/src/tools/clippy/clippy_lints/src/methods/implicit_clone.rs b/src/tools/clippy/clippy_lints/src/methods/implicit_clone.rs index 429cdc1918d..06ecbce4e70 100644 --- a/src/tools/clippy/clippy_lints/src/methods/implicit_clone.rs +++ b/src/tools/clippy/clippy_lints/src/methods/implicit_clone.rs @@ -1,6 +1,6 @@ use clippy_utils::diagnostics::span_lint_and_sugg; use clippy_utils::source::snippet_with_context; -use clippy_utils::ty::peel_mid_ty_refs; +use clippy_utils::ty::{implements_trait, peel_mid_ty_refs}; use clippy_utils::{is_diag_item_method, is_diag_trait_item}; use if_chain::if_chain; use rustc_errors::Applicability; @@ -19,6 +19,8 @@ pub fn check(cx: &LateContext<'_>, method_name: &str, expr: &hir::Expr<'_>, recv let (input_type, ref_count) = peel_mid_ty_refs(input_type); if let Some(ty_name) = input_type.ty_adt_def().map(|adt_def| cx.tcx.item_name(adt_def.did())); if return_type == input_type; + if let Some(clone_trait) = cx.tcx.lang_items().clone_trait(); + if implements_trait(cx, return_type, clone_trait, &[]); then { let mut app = Applicability::MachineApplicable; let recv_snip = snippet_with_context(cx, recv.span, expr.span.ctxt(), "..", &mut app).0; diff --git a/src/tools/clippy/clippy_lints/src/methods/mod.rs b/src/tools/clippy/clippy_lints/src/methods/mod.rs index d2913680cbb..561e4336593 100644 --- a/src/tools/clippy/clippy_lints/src/methods/mod.rs +++ b/src/tools/clippy/clippy_lints/src/methods/mod.rs @@ -3059,7 +3059,7 @@ declare_clippy_lint! { /// let map: HashMap<u32, u32> = HashMap::new(); /// let values = map.values().collect::<Vec<_>>(); /// ``` - #[clippy::version = "1.65.0"] + #[clippy::version = "1.66.0"] pub ITER_KV_MAP, complexity, "iterating on map using `iter` when `keys` or `values` would do" @@ -3672,7 +3672,10 @@ impl Methods { no_effect_replace::check(cx, expr, arg1, arg2); // Check for repeated `str::replace` calls to perform `collapsible_str_replace` lint - if name == "replace" && let Some(("replace", ..)) = method_call(recv) { + if self.msrv.meets(msrvs::PATTERN_TRAIT_CHAR_ARRAY) + && name == "replace" + && let Some(("replace", ..)) = method_call(recv) + { collapsible_str_replace::check(cx, expr, arg1, arg2); } }, diff --git a/src/tools/clippy/clippy_lints/src/methods/needless_collect.rs b/src/tools/clippy/clippy_lints/src/methods/needless_collect.rs index b088e642e0e..f4d3ef3b742 100644 --- a/src/tools/clippy/clippy_lints/src/methods/needless_collect.rs +++ b/src/tools/clippy/clippy_lints/src/methods/needless_collect.rs @@ -151,7 +151,7 @@ fn iterates_same_ty<'tcx>(cx: &LateContext<'tcx>, iter_ty: Ty<'tcx>, collect_ty: && let Some(into_iter_item_proj) = make_projection(cx.tcx, into_iter_trait, item, [collect_ty]) && let Ok(into_iter_item_ty) = cx.tcx.try_normalize_erasing_regions( cx.param_env, - cx.tcx.mk_projection(into_iter_item_proj.item_def_id, into_iter_item_proj.substs) + cx.tcx.mk_projection(into_iter_item_proj.def_id, into_iter_item_proj.substs) ) { iter_item_ty == into_iter_item_ty diff --git a/src/tools/clippy/clippy_lints/src/methods/seek_to_start_instead_of_rewind.rs b/src/tools/clippy/clippy_lints/src/methods/seek_to_start_instead_of_rewind.rs index 7e3bed1e41a..660b7049cce 100644 --- a/src/tools/clippy/clippy_lints/src/methods/seek_to_start_instead_of_rewind.rs +++ b/src/tools/clippy/clippy_lints/src/methods/seek_to_start_instead_of_rewind.rs @@ -1,6 +1,6 @@ use clippy_utils::diagnostics::span_lint_and_then; use clippy_utils::ty::implements_trait; -use clippy_utils::{get_trait_def_id, match_def_path, paths}; +use clippy_utils::{get_trait_def_id, is_expr_used_or_unified, match_def_path, paths}; use rustc_ast::ast::{LitIntType, LitKind}; use rustc_errors::Applicability; use rustc_hir::{Expr, ExprKind}; @@ -19,6 +19,10 @@ pub(super) fn check<'tcx>( // Get receiver type let ty = cx.typeck_results().expr_ty(recv).peel_refs(); + if is_expr_used_or_unified(cx.tcx, expr) { + return; + } + if let Some(seek_trait_id) = get_trait_def_id(cx, &paths::STD_IO_SEEK) && implements_trait(cx, ty, seek_trait_id, &[]) && let ExprKind::Call(func, args1) = arg.kind && diff --git a/src/tools/clippy/clippy_lints/src/misc.rs b/src/tools/clippy/clippy_lints/src/misc.rs index 516dee20f8b..9f4beb92b9d 100644 --- a/src/tools/clippy/clippy_lints/src/misc.rs +++ b/src/tools/clippy/clippy_lints/src/misc.rs @@ -9,12 +9,14 @@ use rustc_hir::{ }; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::lint::in_external_macro; -use rustc_session::{declare_lint_pass, declare_tool_lint}; +use rustc_session::{declare_tool_lint, impl_lint_pass}; use rustc_span::hygiene::DesugaringKind; use rustc_span::source_map::{ExpnKind, Span}; use clippy_utils::sugg::Sugg; -use clippy_utils::{get_parent_expr, in_constant, is_integer_literal, iter_input_pats, last_path_segment, SpanlessEq}; +use clippy_utils::{ + get_parent_expr, in_constant, is_integer_literal, is_no_std_crate, iter_input_pats, last_path_segment, SpanlessEq, +}; declare_clippy_lint! { /// ### What it does @@ -120,14 +122,28 @@ declare_clippy_lint! { "using `0 as *{const, mut} T`" } -declare_lint_pass!(MiscLints => [ +pub struct LintPass { + std_or_core: &'static str, +} +impl Default for LintPass { + fn default() -> Self { + Self { std_or_core: "std" } + } +} +impl_lint_pass!(LintPass => [ TOPLEVEL_REF_ARG, USED_UNDERSCORE_BINDING, SHORT_CIRCUIT_STATEMENT, ZERO_PTR, ]); -impl<'tcx> LateLintPass<'tcx> for MiscLints { +impl<'tcx> LateLintPass<'tcx> for LintPass { + fn check_crate(&mut self, cx: &LateContext<'_>) { + if is_no_std_crate(cx) { + self.std_or_core = "core"; + } + } + fn check_fn( &mut self, cx: &LateContext<'tcx>, @@ -231,7 +247,7 @@ impl<'tcx> LateLintPass<'tcx> for MiscLints { fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) { if let ExprKind::Cast(e, ty) = expr.kind { - check_cast(cx, expr.span, e, ty); + self.check_cast(cx, expr.span, e, ty); return; } if in_attributes_expansion(expr) || expr.span.is_desugaring(DesugaringKind::Await) { @@ -310,26 +326,28 @@ fn non_macro_local(cx: &LateContext<'_>, res: def::Res) -> bool { } } -fn check_cast(cx: &LateContext<'_>, span: Span, e: &Expr<'_>, ty: &hir::Ty<'_>) { - if_chain! { - if let TyKind::Ptr(ref mut_ty) = ty.kind; - if is_integer_literal(e, 0); - if !in_constant(cx, e.hir_id); - then { - let (msg, sugg_fn) = match mut_ty.mutbl { - Mutability::Mut => ("`0 as *mut _` detected", "std::ptr::null_mut"), - Mutability::Not => ("`0 as *const _` detected", "std::ptr::null"), - }; +impl LintPass { + fn check_cast(&self, cx: &LateContext<'_>, span: Span, e: &Expr<'_>, ty: &hir::Ty<'_>) { + if_chain! { + if let TyKind::Ptr(ref mut_ty) = ty.kind; + if is_integer_literal(e, 0); + if !in_constant(cx, e.hir_id); + then { + let (msg, sugg_fn) = match mut_ty.mutbl { + Mutability::Mut => ("`0 as *mut _` detected", "ptr::null_mut"), + Mutability::Not => ("`0 as *const _` detected", "ptr::null"), + }; - let (sugg, appl) = if let TyKind::Infer = mut_ty.ty.kind { - (format!("{sugg_fn}()"), Applicability::MachineApplicable) - } else if let Some(mut_ty_snip) = snippet_opt(cx, mut_ty.ty.span) { - (format!("{sugg_fn}::<{mut_ty_snip}>()"), Applicability::MachineApplicable) - } else { - // `MaybeIncorrect` as type inference may not work with the suggested code - (format!("{sugg_fn}()"), Applicability::MaybeIncorrect) - }; - span_lint_and_sugg(cx, ZERO_PTR, span, msg, "try", sugg, appl); + let (sugg, appl) = if let TyKind::Infer = mut_ty.ty.kind { + (format!("{}::{sugg_fn}()", self.std_or_core), Applicability::MachineApplicable) + } else if let Some(mut_ty_snip) = snippet_opt(cx, mut_ty.ty.span) { + (format!("{}::{sugg_fn}::<{mut_ty_snip}>()", self.std_or_core), Applicability::MachineApplicable) + } else { + // `MaybeIncorrect` as type inference may not work with the suggested code + (format!("{}::{sugg_fn}()", self.std_or_core), Applicability::MaybeIncorrect) + }; + span_lint_and_sugg(cx, ZERO_PTR, span, msg, "try", sugg, appl); + } } } } diff --git a/src/tools/clippy/clippy_lints/src/operators/arithmetic_side_effects.rs b/src/tools/clippy/clippy_lints/src/operators/arithmetic_side_effects.rs index 20b82d81a2a..4fbc8398e37 100644 --- a/src/tools/clippy/clippy_lints/src/operators/arithmetic_side_effects.rs +++ b/src/tools/clippy/clippy_lints/src/operators/arithmetic_side_effects.rs @@ -5,25 +5,26 @@ use clippy_utils::{ peel_hir_expr_refs, }; use rustc_ast as ast; -use rustc_data_structures::fx::FxHashSet; +use rustc_data_structures::fx::{FxHashMap, FxHashSet}; use rustc_hir as hir; use rustc_lint::{LateContext, LateLintPass}; use rustc_middle::ty::Ty; use rustc_session::impl_lint_pass; use rustc_span::source_map::{Span, Spanned}; -const HARD_CODED_ALLOWED: &[&str] = &[ - "&str", - "f32", - "f64", - "std::num::Saturating", - "std::num::Wrapping", - "std::string::String", +const HARD_CODED_ALLOWED_BINARY: &[[&str; 2]] = &[ + ["f32", "f32"], + ["f64", "f64"], + ["std::num::Saturating", "std::num::Saturating"], + ["std::num::Wrapping", "std::num::Wrapping"], + ["std::string::String", "&str"], ]; +const HARD_CODED_ALLOWED_UNARY: &[&str] = &["f32", "f64", "std::num::Saturating", "std::num::Wrapping"]; #[derive(Debug)] pub struct ArithmeticSideEffects { - allowed: FxHashSet<String>, + allowed_binary: FxHashMap<String, FxHashSet<String>>, + allowed_unary: FxHashSet<String>, // Used to check whether expressions are constants, such as in enum discriminants and consts const_span: Option<Span>, expr_span: Option<Span>, @@ -33,19 +34,55 @@ impl_lint_pass!(ArithmeticSideEffects => [ARITHMETIC_SIDE_EFFECTS]); impl ArithmeticSideEffects { #[must_use] - pub fn new(mut allowed: FxHashSet<String>) -> Self { - allowed.extend(HARD_CODED_ALLOWED.iter().copied().map(String::from)); + pub fn new(user_allowed_binary: Vec<[String; 2]>, user_allowed_unary: Vec<String>) -> Self { + let mut allowed_binary: FxHashMap<String, FxHashSet<String>> = <_>::default(); + for [lhs, rhs] in user_allowed_binary.into_iter().chain( + HARD_CODED_ALLOWED_BINARY + .iter() + .copied() + .map(|[lhs, rhs]| [lhs.to_string(), rhs.to_string()]), + ) { + allowed_binary.entry(lhs).or_default().insert(rhs); + } + let allowed_unary = user_allowed_unary + .into_iter() + .chain(HARD_CODED_ALLOWED_UNARY.iter().copied().map(String::from)) + .collect(); Self { - allowed, + allowed_binary, + allowed_unary, const_span: None, expr_span: None, } } - /// Checks if the given `expr` has any of the inner `allowed` elements. - fn is_allowed_ty(&self, ty: Ty<'_>) -> bool { - self.allowed - .contains(ty.to_string().split('<').next().unwrap_or_default()) + /// Checks if the lhs and the rhs types of a binary operation like "addition" or + /// "multiplication" are present in the inner set of allowed types. + fn has_allowed_binary(&self, lhs_ty: Ty<'_>, rhs_ty: Ty<'_>) -> bool { + let lhs_ty_string = lhs_ty.to_string(); + let lhs_ty_string_elem = lhs_ty_string.split('<').next().unwrap_or_default(); + let rhs_ty_string = rhs_ty.to_string(); + let rhs_ty_string_elem = rhs_ty_string.split('<').next().unwrap_or_default(); + if let Some(rhs_from_specific) = self.allowed_binary.get(lhs_ty_string_elem) + && { + let rhs_has_allowed_ty = rhs_from_specific.contains(rhs_ty_string_elem); + rhs_has_allowed_ty || rhs_from_specific.contains("*") + } + { + true + } else if let Some(rhs_from_glob) = self.allowed_binary.get("*") { + rhs_from_glob.contains(rhs_ty_string_elem) + } else { + false + } + } + + /// Checks if the type of an unary operation like "negation" is present in the inner set of + /// allowed types. + fn has_allowed_unary(&self, ty: Ty<'_>) -> bool { + let ty_string = ty.to_string(); + let ty_string_elem = ty_string.split('<').next().unwrap_or_default(); + self.allowed_unary.contains(ty_string_elem) } // For example, 8i32 or &i64::MAX. @@ -97,8 +134,7 @@ impl ArithmeticSideEffects { }; let lhs_ty = cx.typeck_results().expr_ty(lhs); let rhs_ty = cx.typeck_results().expr_ty(rhs); - let lhs_and_rhs_have_the_same_ty = lhs_ty == rhs_ty; - if lhs_and_rhs_have_the_same_ty && self.is_allowed_ty(lhs_ty) && self.is_allowed_ty(rhs_ty) { + if self.has_allowed_binary(lhs_ty, rhs_ty) { return; } let has_valid_op = if Self::is_integral(lhs_ty) && Self::is_integral(rhs_ty) { @@ -137,7 +173,7 @@ impl ArithmeticSideEffects { return; } let ty = cx.typeck_results().expr_ty(expr).peel_refs(); - if self.is_allowed_ty(ty) { + if self.has_allowed_unary(ty) { return; } let actual_un_expr = peel_hir_expr_refs(un_expr).0; diff --git a/src/tools/clippy/clippy_lints/src/operators/identity_op.rs b/src/tools/clippy/clippy_lints/src/operators/identity_op.rs index b48d6c4e2e2..14a12da862e 100644 --- a/src/tools/clippy/clippy_lints/src/operators/identity_op.rs +++ b/src/tools/clippy/clippy_lints/src/operators/identity_op.rs @@ -1,7 +1,7 @@ use clippy_utils::consts::{constant_full_int, constant_simple, Constant, FullInt}; use clippy_utils::diagnostics::span_lint_and_sugg; use clippy_utils::source::snippet_with_applicability; -use clippy_utils::{clip, unsext}; +use clippy_utils::{clip, peel_hir_expr_refs, unsext}; use rustc_errors::Applicability; use rustc_hir::{BinOpKind, Expr, ExprKind, Node}; use rustc_lint::LateContext; @@ -20,20 +20,76 @@ pub(crate) fn check<'tcx>( if !is_allowed(cx, op, left, right) { match op { BinOpKind::Add | BinOpKind::BitOr | BinOpKind::BitXor => { - check_op(cx, left, 0, expr.span, right.span, needs_parenthesis(cx, expr, right)); - check_op(cx, right, 0, expr.span, left.span, Parens::Unneeded); + check_op( + cx, + left, + 0, + expr.span, + peel_hir_expr_refs(right).0.span, + needs_parenthesis(cx, expr, right), + ); + check_op( + cx, + right, + 0, + expr.span, + peel_hir_expr_refs(left).0.span, + Parens::Unneeded, + ); }, BinOpKind::Shl | BinOpKind::Shr | BinOpKind::Sub => { - check_op(cx, right, 0, expr.span, left.span, Parens::Unneeded); + check_op( + cx, + right, + 0, + expr.span, + peel_hir_expr_refs(left).0.span, + Parens::Unneeded, + ); }, BinOpKind::Mul => { - check_op(cx, left, 1, expr.span, right.span, needs_parenthesis(cx, expr, right)); - check_op(cx, right, 1, expr.span, left.span, Parens::Unneeded); + check_op( + cx, + left, + 1, + expr.span, + peel_hir_expr_refs(right).0.span, + needs_parenthesis(cx, expr, right), + ); + check_op( + cx, + right, + 1, + expr.span, + peel_hir_expr_refs(left).0.span, + Parens::Unneeded, + ); }, - BinOpKind::Div => check_op(cx, right, 1, expr.span, left.span, Parens::Unneeded), + BinOpKind::Div => check_op( + cx, + right, + 1, + expr.span, + peel_hir_expr_refs(left).0.span, + Parens::Unneeded, + ), BinOpKind::BitAnd => { - check_op(cx, left, -1, expr.span, right.span, needs_parenthesis(cx, expr, right)); - check_op(cx, right, -1, expr.span, left.span, Parens::Unneeded); + check_op( + cx, + left, + -1, + expr.span, + peel_hir_expr_refs(right).0.span, + needs_parenthesis(cx, expr, right), + ); + check_op( + cx, + right, + -1, + expr.span, + peel_hir_expr_refs(left).0.span, + Parens::Unneeded, + ); }, BinOpKind::Rem => check_remainder(cx, left, right, expr.span, left.span), _ => (), diff --git a/src/tools/clippy/clippy_lints/src/operators/mod.rs b/src/tools/clippy/clippy_lints/src/operators/mod.rs index b8a20d5ebe9..eba230da6c3 100644 --- a/src/tools/clippy/clippy_lints/src/operators/mod.rs +++ b/src/tools/clippy/clippy_lints/src/operators/mod.rs @@ -90,9 +90,6 @@ declare_clippy_lint! { /// use rust_decimal::Decimal; /// let _n = Decimal::MAX + Decimal::MAX; /// ``` - /// - /// ### Allowed types - /// Custom allowed types can be specified through the "arithmetic-side-effects-allowed" filter. #[clippy::version = "1.64.0"] pub ARITHMETIC_SIDE_EFFECTS, restriction, diff --git a/src/tools/clippy/clippy_lints/src/redundant_pub_crate.rs b/src/tools/clippy/clippy_lints/src/redundant_pub_crate.rs index d612d249c2f..c2a8db7df03 100644 --- a/src/tools/clippy/clippy_lints/src/redundant_pub_crate.rs +++ b/src/tools/clippy/clippy_lints/src/redundant_pub_crate.rs @@ -84,7 +84,11 @@ impl<'tcx> LateLintPass<'tcx> for RedundantPubCrate { fn is_not_macro_export<'tcx>(item: &'tcx Item<'tcx>) -> bool { if let ItemKind::Use(path, _) = item.kind { - if path.res.iter().all(|res| matches!(res, Res::Def(DefKind::Macro(MacroKind::Bang), _))) { + if path + .res + .iter() + .all(|res| matches!(res, Res::Def(DefKind::Macro(MacroKind::Bang), _))) + { return false; } } else if let ItemKind::Macro(..) = item.kind { diff --git a/src/tools/clippy/clippy_lints/src/redundant_static_lifetimes.rs b/src/tools/clippy/clippy_lints/src/redundant_static_lifetimes.rs index 3aa2490bc44..41f991a967b 100644 --- a/src/tools/clippy/clippy_lints/src/redundant_static_lifetimes.rs +++ b/src/tools/clippy/clippy_lints/src/redundant_static_lifetimes.rs @@ -66,7 +66,7 @@ impl RedundantStaticLifetimes { TyKind::Path(..) | TyKind::Slice(..) | TyKind::Array(..) | TyKind::Tup(..) => { if lifetime.ident.name == rustc_span::symbol::kw::StaticLifetime { let snip = snippet(cx, borrow_type.ty.span, "<type>"); - let sugg = format!("&{snip}"); + let sugg = format!("&{}{snip}", borrow_type.mutbl.prefix_str()); span_lint_and_then( cx, REDUNDANT_STATIC_LIFETIMES, diff --git a/src/tools/clippy/clippy_lints/src/renamed_lints.rs b/src/tools/clippy/clippy_lints/src/renamed_lints.rs index 8e214218f23..72c25592609 100644 --- a/src/tools/clippy/clippy_lints/src/renamed_lints.rs +++ b/src/tools/clippy/clippy_lints/src/renamed_lints.rs @@ -2,6 +2,7 @@ #[rustfmt::skip] pub static RENAMED_LINTS: &[(&str, &str)] = &[ + ("clippy::almost_complete_letter_range", "clippy::almost_complete_range"), ("clippy::blacklisted_name", "clippy::disallowed_names"), ("clippy::block_in_if_condition_expr", "clippy::blocks_in_if_conditions"), ("clippy::block_in_if_condition_stmt", "clippy::blocks_in_if_conditions"), diff --git a/src/tools/clippy/clippy_lints/src/semicolon_block.rs b/src/tools/clippy/clippy_lints/src/semicolon_block.rs new file mode 100644 index 00000000000..8f1d1490e1f --- /dev/null +++ b/src/tools/clippy/clippy_lints/src/semicolon_block.rs @@ -0,0 +1,137 @@ +use clippy_utils::diagnostics::{multispan_sugg_with_applicability, span_lint_and_then}; +use rustc_errors::Applicability; +use rustc_hir::{Block, Expr, ExprKind, Stmt, StmtKind}; +use rustc_lint::{LateContext, LateLintPass, LintContext}; +use rustc_session::{declare_lint_pass, declare_tool_lint}; +use rustc_span::Span; + +declare_clippy_lint! { + /// ### What it does + /// + /// Suggests moving the semicolon after a block to the inside of the block, after its last + /// expression. + /// + /// ### Why is this bad? + /// + /// For consistency it's best to have the semicolon inside/outside the block. Either way is fine + /// and this lint suggests inside the block. + /// Take a look at `semicolon_outside_block` for the other alternative. + /// + /// ### Example + /// + /// ```rust + /// # fn f(_: u32) {} + /// # let x = 0; + /// unsafe { f(x) }; + /// ``` + /// Use instead: + /// ```rust + /// # fn f(_: u32) {} + /// # let x = 0; + /// unsafe { f(x); } + /// ``` + #[clippy::version = "1.66.0"] + pub SEMICOLON_INSIDE_BLOCK, + restriction, + "add a semicolon inside the block" +} +declare_clippy_lint! { + /// ### What it does + /// + /// Suggests moving the semicolon from a block's final expression outside of the block. + /// + /// ### Why is this bad? + /// + /// For consistency it's best to have the semicolon inside/outside the block. Either way is fine + /// and this lint suggests outside the block. + /// Take a look at `semicolon_inside_block` for the other alternative. + /// + /// ### Example + /// + /// ```rust + /// # fn f(_: u32) {} + /// # let x = 0; + /// unsafe { f(x); } + /// ``` + /// Use instead: + /// ```rust + /// # fn f(_: u32) {} + /// # let x = 0; + /// unsafe { f(x) }; + /// ``` + #[clippy::version = "1.66.0"] + pub SEMICOLON_OUTSIDE_BLOCK, + restriction, + "add a semicolon outside the block" +} +declare_lint_pass!(SemicolonBlock => [SEMICOLON_INSIDE_BLOCK, SEMICOLON_OUTSIDE_BLOCK]); + +impl LateLintPass<'_> for SemicolonBlock { + fn check_stmt(&mut self, cx: &LateContext<'_>, stmt: &Stmt<'_>) { + match stmt.kind { + StmtKind::Expr(Expr { + kind: ExprKind::Block(block, _), + .. + }) if !block.span.from_expansion() => { + let Block { + expr: None, + stmts: [.., stmt], + .. + } = block else { return }; + let &Stmt { + kind: StmtKind::Semi(expr), + span, + .. + } = stmt else { return }; + semicolon_outside_block(cx, block, expr, span); + }, + StmtKind::Semi(Expr { + kind: ExprKind::Block(block @ Block { expr: Some(tail), .. }, _), + .. + }) if !block.span.from_expansion() => semicolon_inside_block(cx, block, tail, stmt.span), + _ => (), + } + } +} + +fn semicolon_inside_block(cx: &LateContext<'_>, block: &Block<'_>, tail: &Expr<'_>, semi_span: Span) { + let insert_span = tail.span.source_callsite().shrink_to_hi(); + let remove_span = semi_span.with_lo(block.span.hi()); + + span_lint_and_then( + cx, + SEMICOLON_INSIDE_BLOCK, + semi_span, + "consider moving the `;` inside the block for consistent formatting", + |diag| { + multispan_sugg_with_applicability( + diag, + "put the `;` here", + Applicability::MachineApplicable, + [(remove_span, String::new()), (insert_span, ";".to_owned())], + ); + }, + ); +} + +fn semicolon_outside_block(cx: &LateContext<'_>, block: &Block<'_>, tail_stmt_expr: &Expr<'_>, semi_span: Span) { + let insert_span = block.span.with_lo(block.span.hi()); + // account for macro calls + let semi_span = cx.sess().source_map().stmt_span(semi_span, block.span); + let remove_span = semi_span.with_lo(tail_stmt_expr.span.source_callsite().hi()); + + span_lint_and_then( + cx, + SEMICOLON_OUTSIDE_BLOCK, + block.span, + "consider moving the `;` outside the block for consistent formatting", + |diag| { + multispan_sugg_with_applicability( + diag, + "put the `;` here", + Applicability::MachineApplicable, + [(remove_span, String::new()), (insert_span, ";".to_owned())], + ); + }, + ); +} diff --git a/src/tools/clippy/clippy_lints/src/strings.rs b/src/tools/clippy/clippy_lints/src/strings.rs index f4705481d4e..bc18cad6d38 100644 --- a/src/tools/clippy/clippy_lints/src/strings.rs +++ b/src/tools/clippy/clippy_lints/src/strings.rs @@ -1,12 +1,12 @@ use clippy_utils::diagnostics::{span_lint, span_lint_and_help, span_lint_and_sugg}; use clippy_utils::source::{snippet, snippet_with_applicability}; use clippy_utils::ty::is_type_lang_item; +use clippy_utils::{get_expr_use_or_unification_node, peel_blocks, SpanlessEq}; use clippy_utils::{get_parent_expr, is_lint_allowed, match_function_call, method_calls, paths}; -use clippy_utils::{peel_blocks, SpanlessEq}; use if_chain::if_chain; use rustc_errors::Applicability; use rustc_hir::def_id::DefId; -use rustc_hir::{BinOpKind, BorrowKind, Expr, ExprKind, LangItem, QPath}; +use rustc_hir::{BinOpKind, BorrowKind, Expr, ExprKind, LangItem, Node, QPath}; use rustc_lint::{LateContext, LateLintPass, LintContext}; use rustc_middle::lint::in_external_macro; use rustc_middle::ty; @@ -249,6 +249,7 @@ const MAX_LENGTH_BYTE_STRING_LIT: usize = 32; declare_lint_pass!(StringLitAsBytes => [STRING_LIT_AS_BYTES, STRING_FROM_UTF8_AS_BYTES]); impl<'tcx> LateLintPass<'tcx> for StringLitAsBytes { + #[expect(clippy::too_many_lines)] fn check_expr(&mut self, cx: &LateContext<'tcx>, e: &'tcx Expr<'_>) { use rustc_ast::LitKind; @@ -316,18 +317,27 @@ impl<'tcx> LateLintPass<'tcx> for StringLitAsBytes { && lit_content.as_str().len() <= MAX_LENGTH_BYTE_STRING_LIT && !receiver.span.from_expansion() { - span_lint_and_sugg( - cx, - STRING_LIT_AS_BYTES, - e.span, - "calling `as_bytes()` on a string literal", - "consider using a byte string literal instead", - format!( - "b{}", - snippet_with_applicability(cx, receiver.span, r#""foo""#, &mut applicability) - ), - applicability, - ); + if let Some((parent, id)) = get_expr_use_or_unification_node(cx.tcx, e) + && let Node::Expr(parent) = parent + && let ExprKind::Match(scrutinee, ..) = parent.kind + && scrutinee.hir_id == id + { + // Don't lint. Byte strings produce `&[u8; N]` whereas `as_bytes()` produces + // `&[u8]`. This change would prevent matching with different sized slices. + } else { + span_lint_and_sugg( + cx, + STRING_LIT_AS_BYTES, + e.span, + "calling `as_bytes()` on a string literal", + "consider using a byte string literal instead", + format!( + "b{}", + snippet_with_applicability(cx, receiver.span, r#""foo""#, &mut applicability) + ), + applicability, + ); + } } } } diff --git a/src/tools/clippy/clippy_lints/src/utils/conf.rs b/src/tools/clippy/clippy_lints/src/utils/conf.rs index b6dc8cd7ab1..3e7d0028c0f 100644 --- a/src/tools/clippy/clippy_lints/src/utils/conf.rs +++ b/src/tools/clippy/clippy_lints/src/utils/conf.rs @@ -205,10 +205,49 @@ macro_rules! define_Conf { } define_Conf! { - /// Lint: Arithmetic. + /// Lint: ARITHMETIC_SIDE_EFFECTS. /// - /// Suppress checking of the passed type names. + /// Suppress checking of the passed type names in all types of operations. + /// + /// If a specific operation is desired, consider using `arithmetic_side_effects_allowed_binary` or `arithmetic_side_effects_allowed_unary` instead. + /// + /// #### Example + /// + /// ```toml + /// arithmetic-side-effects-allowed = ["SomeType", "AnotherType"] + /// ``` + /// + /// #### Noteworthy + /// + /// A type, say `SomeType`, listed in this configuration has the same behavior of `["SomeType" , "*"], ["*", "SomeType"]` in `arithmetic_side_effects_allowed_binary`. (arithmetic_side_effects_allowed: rustc_data_structures::fx::FxHashSet<String> = <_>::default()), + /// Lint: ARITHMETIC_SIDE_EFFECTS. + /// + /// Suppress checking of the passed type pair names in binary operations like addition or + /// multiplication. + /// + /// Supports the "*" wildcard to indicate that a certain type won't trigger the lint regardless + /// of the involved counterpart. For example, `["SomeType", "*"]` or `["*", "AnotherType"]`. + /// + /// Pairs are asymmetric, which means that `["SomeType", "AnotherType"]` is not the same as + /// `["AnotherType", "SomeType"]`. + /// + /// #### Example + /// + /// ```toml + /// arithmetic-side-effects-allowed-binary = [["SomeType" , "f32"], ["AnotherType", "*"]] + /// ``` + (arithmetic_side_effects_allowed_binary: Vec<[String; 2]> = <_>::default()), + /// Lint: ARITHMETIC_SIDE_EFFECTS. + /// + /// Suppress checking of the passed type names in unary operations like "negation" (`-`). + /// + /// #### Example + /// + /// ```toml + /// arithmetic-side-effects-allowed-unary = ["SomeType", "AnotherType"] + /// ``` + (arithmetic_side_effects_allowed_unary: rustc_data_structures::fx::FxHashSet<String> = <_>::default()), /// Lint: ENUM_VARIANT_NAMES, LARGE_TYPES_PASSED_BY_VALUE, TRIVIALLY_COPY_PASS_BY_REF, UNNECESSARY_WRAPS, UNUSED_SELF, UPPER_CASE_ACRONYMS, WRONG_SELF_CONVENTION, BOX_COLLECTION, REDUNDANT_ALLOCATION, RC_BUFFER, VEC_BOX, OPTION_OPTION, LINKEDLIST, RC_MUTEX. /// /// Suppress lints whenever the suggested change would cause breakage for other crates. @@ -406,6 +445,14 @@ define_Conf! { /// /// Whether to allow mixed uninlined format args, e.g. `format!("{} {}", a, foo.bar)` (allow_mixed_uninlined_format_args: bool = true), + /// Lint: INDEXING_SLICING + /// + /// Whether to suppress a restriction lint in constant code. In same + /// cases the restructured operation might not be unavoidable, as the + /// suggested counterparts are unavailable in constant code. This + /// configuration will cause restriction lints to trigger even + /// if no suggestion can be made. + (suppress_restriction_lint_in_const: bool = false), } /// Search for the configuration file. diff --git a/src/tools/clippy/clippy_lints/src/utils/internal_lints/invalid_paths.rs b/src/tools/clippy/clippy_lints/src/utils/internal_lints/invalid_paths.rs index 680935f2329..9afe02c1e47 100644 --- a/src/tools/clippy/clippy_lints/src/utils/internal_lints/invalid_paths.rs +++ b/src/tools/clippy/clippy_lints/src/utils/internal_lints/invalid_paths.rs @@ -7,7 +7,7 @@ use rustc_hir::def::DefKind; use rustc_hir::Item; use rustc_hir_analysis::hir_ty_to_ty; use rustc_lint::{LateContext, LateLintPass}; -use rustc_middle::ty::{self, fast_reject::SimplifiedTypeGen, FloatTy}; +use rustc_middle::ty::{self, fast_reject::SimplifiedType, FloatTy}; use rustc_session::{declare_lint_pass, declare_tool_lint}; use rustc_span::symbol::Symbol; @@ -73,10 +73,10 @@ pub fn check_path(cx: &LateContext<'_>, path: &[&str]) -> bool { let lang_items = cx.tcx.lang_items(); // This list isn't complete, but good enough for our current list of paths. let incoherent_impls = [ - SimplifiedTypeGen::FloatSimplifiedType(FloatTy::F32), - SimplifiedTypeGen::FloatSimplifiedType(FloatTy::F64), - SimplifiedTypeGen::SliceSimplifiedType, - SimplifiedTypeGen::StrSimplifiedType, + SimplifiedType::FloatSimplifiedType(FloatTy::F32), + SimplifiedType::FloatSimplifiedType(FloatTy::F64), + SimplifiedType::SliceSimplifiedType, + SimplifiedType::StrSimplifiedType, ] .iter() .flat_map(|&ty| cx.tcx.incoherent_impls(ty).iter().copied()); diff --git a/src/tools/clippy/clippy_utils/Cargo.toml b/src/tools/clippy/clippy_utils/Cargo.toml index fb9f4740ecc..ac6a566b9cd 100644 --- a/src/tools/clippy/clippy_utils/Cargo.toml +++ b/src/tools/clippy/clippy_utils/Cargo.toml @@ -1,6 +1,6 @@ [package] name = "clippy_utils" -version = "0.1.67" +version = "0.1.68" edition = "2021" publish = false diff --git a/src/tools/clippy/clippy_utils/src/lib.rs b/src/tools/clippy/clippy_utils/src/lib.rs index 90192f46cbf..43e2d1ec826 100644 --- a/src/tools/clippy/clippy_utils/src/lib.rs +++ b/src/tools/clippy/clippy_utils/src/lib.rs @@ -97,7 +97,7 @@ use rustc_middle::hir::place::PlaceBase; use rustc_middle::ty as rustc_ty; use rustc_middle::ty::adjustment::{Adjust, Adjustment, AutoBorrow}; use rustc_middle::ty::binding::BindingMode; -use rustc_middle::ty::fast_reject::SimplifiedTypeGen::{ +use rustc_middle::ty::fast_reject::SimplifiedType::{ ArraySimplifiedType, BoolSimplifiedType, CharSimplifiedType, FloatSimplifiedType, IntSimplifiedType, PtrSimplifiedType, SliceSimplifiedType, StrSimplifiedType, UintSimplifiedType, }; @@ -196,7 +196,7 @@ pub fn in_constant(cx: &LateContext<'_>, id: HirId) -> bool { let parent_id = cx.tcx.hir().get_parent_item(id).def_id; match cx.tcx.hir().get_by_def_id(parent_id) { Node::Item(&Item { - kind: ItemKind::Const(..) | ItemKind::Static(..), + kind: ItemKind::Const(..) | ItemKind::Static(..) | ItemKind::Enum(..), .. }) | Node::TraitItem(&TraitItem { diff --git a/src/tools/clippy/clippy_utils/src/macros.rs b/src/tools/clippy/clippy_utils/src/macros.rs index d13b34a66cc..77c5f115542 100644 --- a/src/tools/clippy/clippy_utils/src/macros.rs +++ b/src/tools/clippy/clippy_utils/src/macros.rs @@ -208,6 +208,12 @@ pub fn is_panic(cx: &LateContext<'_>, def_id: DefId) -> bool { ) } +/// Is `def_id` of `assert!` or `debug_assert!` +pub fn is_assert_macro(cx: &LateContext<'_>, def_id: DefId) -> bool { + let Some(name) = cx.tcx.get_diagnostic_name(def_id) else { return false }; + matches!(name, sym::assert_macro | sym::debug_assert_macro) +} + pub enum PanicExpn<'a> { /// No arguments - `panic!()` Empty, diff --git a/src/tools/clippy/clippy_utils/src/msrvs.rs b/src/tools/clippy/clippy_utils/src/msrvs.rs index 12a512f78a6..ba5bc9c3135 100644 --- a/src/tools/clippy/clippy_utils/src/msrvs.rs +++ b/src/tools/clippy/clippy_utils/src/msrvs.rs @@ -21,7 +21,7 @@ macro_rules! msrv_aliases { msrv_aliases! { 1,65,0 { LET_ELSE } 1,62,0 { BOOL_THEN_SOME } - 1,58,0 { FORMAT_ARGS_CAPTURE } + 1,58,0 { FORMAT_ARGS_CAPTURE, PATTERN_TRAIT_CHAR_ARRAY } 1,53,0 { OR_PATTERNS, MANUAL_BITS, BTREE_MAP_RETAIN, BTREE_SET_RETAIN, ARRAY_INTO_ITERATOR } 1,52,0 { STR_SPLIT_ONCE, REM_EUCLID_CONST } 1,51,0 { BORROW_AS_PTR, SEEK_FROM_CURRENT, UNSIGNED_ABS } diff --git a/src/tools/clippy/clippy_utils/src/paths.rs b/src/tools/clippy/clippy_utils/src/paths.rs index 6417f0f3c71..9ca50105ae5 100644 --- a/src/tools/clippy/clippy_utils/src/paths.rs +++ b/src/tools/clippy/clippy_utils/src/paths.rs @@ -20,7 +20,6 @@ pub const BTREEMAP_CONTAINS_KEY: [&str; 6] = ["alloc", "collections", "btree", " pub const BTREEMAP_INSERT: [&str; 6] = ["alloc", "collections", "btree", "map", "BTreeMap", "insert"]; pub const BTREESET_ITER: [&str; 6] = ["alloc", "collections", "btree", "set", "BTreeSet", "iter"]; pub const CLONE_TRAIT_METHOD: [&str; 4] = ["core", "clone", "Clone", "clone"]; -pub const CORE_ITER_COLLECT: [&str; 6] = ["core", "iter", "traits", "iterator", "Iterator", "collect"]; pub const CORE_ITER_CLONED: [&str; 6] = ["core", "iter", "traits", "iterator", "Iterator", "cloned"]; pub const CORE_ITER_COPIED: [&str; 6] = ["core", "iter", "traits", "iterator", "Iterator", "copied"]; pub const CORE_ITER_FILTER: [&str; 6] = ["core", "iter", "traits", "iterator", "Iterator", "filter"]; diff --git a/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs b/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs index e053a9dc888..e5d7da68281 100644 --- a/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs +++ b/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs @@ -82,7 +82,7 @@ fn check_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, span: Span) -> McfResult { ty::Ref(_, _, hir::Mutability::Mut) => { return Err((span, "mutable references in const fn are unstable".into())); }, - ty::Opaque(..) => return Err((span, "`impl Trait` in const fn is unstable".into())), + ty::Alias(ty::Opaque, ..) => return Err((span, "`impl Trait` in const fn is unstable".into())), ty::FnPtr(..) => { return Err((span, "function pointers in const fn are unstable".into())); }, @@ -301,10 +301,7 @@ fn check_terminator<'tcx>( check_operand(tcx, value, span, body) }, - TerminatorKind::SwitchInt { - discr, - targets: _, - } => check_operand(tcx, discr, span, body), + TerminatorKind::SwitchInt { discr, targets: _ } => check_operand(tcx, discr, span, body), TerminatorKind::Abort => Err((span, "abort is not stable in const fn".into())), TerminatorKind::GeneratorDrop | TerminatorKind::Yield { .. } => { diff --git a/src/tools/clippy/clippy_utils/src/ty.rs b/src/tools/clippy/clippy_utils/src/ty.rs index bfb2d472a39..2773da70d78 100644 --- a/src/tools/clippy/clippy_utils/src/ty.rs +++ b/src/tools/clippy/clippy_utils/src/ty.rs @@ -16,8 +16,8 @@ use rustc_infer::infer::{ use rustc_lint::LateContext; use rustc_middle::mir::interpret::{ConstValue, Scalar}; use rustc_middle::ty::{ - self, AdtDef, AssocKind, Binder, BoundRegion, DefIdTree, FnSig, IntTy, List, ParamEnv, Predicate, PredicateKind, - ProjectionTy, Region, RegionKind, SubstsRef, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable, TypeVisitor, UintTy, + self, AdtDef, AliasTy, AssocKind, Binder, BoundRegion, DefIdTree, FnSig, IntTy, List, ParamEnv, Predicate, + PredicateKind, Region, RegionKind, SubstsRef, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable, TypeVisitor, UintTy, VariantDef, VariantDiscr, }; use rustc_middle::ty::{GenericArg, GenericArgKind}; @@ -30,7 +30,7 @@ use std::iter; use crate::{match_def_path, path_res, paths}; -// Checks if the given type implements copy. +/// Checks if the given type implements copy. pub fn is_copy<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> bool { ty.is_copy_modulo_regions(cx.tcx, cx.param_env) } @@ -69,50 +69,66 @@ pub fn contains_adt_constructor<'tcx>(ty: Ty<'tcx>, adt: AdtDef<'tcx>) -> bool { /// This method also recurses into opaque type predicates, so call it with `impl Trait<U>` and `U` /// will also return `true`. pub fn contains_ty_adt_constructor_opaque<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>, needle: Ty<'tcx>) -> bool { - ty.walk().any(|inner| match inner.unpack() { - GenericArgKind::Type(inner_ty) => { - if inner_ty == needle { - return true; - } + fn contains_ty_adt_constructor_opaque_inner<'tcx>( + cx: &LateContext<'tcx>, + ty: Ty<'tcx>, + needle: Ty<'tcx>, + seen: &mut FxHashSet<DefId>, + ) -> bool { + ty.walk().any(|inner| match inner.unpack() { + GenericArgKind::Type(inner_ty) => { + if inner_ty == needle { + return true; + } - if inner_ty.ty_adt_def() == needle.ty_adt_def() { - return true; - } + if inner_ty.ty_adt_def() == needle.ty_adt_def() { + return true; + } - if let ty::Opaque(def_id, _) = *inner_ty.kind() { - for &(predicate, _span) in cx.tcx.explicit_item_bounds(def_id) { - match predicate.kind().skip_binder() { - // For `impl Trait<U>`, it will register a predicate of `T: Trait<U>`, so we go through - // and check substituions to find `U`. - ty::PredicateKind::Clause(ty::Clause::Trait(trait_predicate)) => { - if trait_predicate - .trait_ref - .substs - .types() - .skip(1) // Skip the implicit `Self` generic parameter - .any(|ty| contains_ty_adt_constructor_opaque(cx, ty, needle)) - { - return true; - } - }, - // For `impl Trait<Assoc=U>`, it will register a predicate of `<T as Trait>::Assoc = U`, - // so we check the term for `U`. - ty::PredicateKind::Clause(ty::Clause::Projection(projection_predicate)) => { - if let ty::TermKind::Ty(ty) = projection_predicate.term.unpack() { - if contains_ty_adt_constructor_opaque(cx, ty, needle) { + if let ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }) = *inner_ty.kind() { + if !seen.insert(def_id) { + return false; + } + + for &(predicate, _span) in cx.tcx.explicit_item_bounds(def_id) { + match predicate.kind().skip_binder() { + // For `impl Trait<U>`, it will register a predicate of `T: Trait<U>`, so we go through + // and check substituions to find `U`. + ty::PredicateKind::Clause(ty::Clause::Trait(trait_predicate)) => { + if trait_predicate + .trait_ref + .substs + .types() + .skip(1) // Skip the implicit `Self` generic parameter + .any(|ty| contains_ty_adt_constructor_opaque_inner(cx, ty, needle, seen)) + { return true; } - }; - }, - _ => (), + }, + // For `impl Trait<Assoc=U>`, it will register a predicate of `<T as Trait>::Assoc = U`, + // so we check the term for `U`. + ty::PredicateKind::Clause(ty::Clause::Projection(projection_predicate)) => { + if let ty::TermKind::Ty(ty) = projection_predicate.term.unpack() { + if contains_ty_adt_constructor_opaque_inner(cx, ty, needle, seen) { + return true; + } + }; + }, + _ => (), + } } } - } - false - }, - GenericArgKind::Lifetime(_) | GenericArgKind::Const(_) => false, - }) + false + }, + GenericArgKind::Lifetime(_) | GenericArgKind::Const(_) => false, + }) + } + + // A hash set to ensure that the same opaque type (`impl Trait` in RPIT or TAIT) is not + // visited twice. + let mut seen = FxHashSet::default(); + contains_ty_adt_constructor_opaque_inner(cx, ty, needle, &mut seen) } /// Resolves `<T as Iterator>::Item` for `T` @@ -250,7 +266,7 @@ pub fn is_must_use_ty<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> bool { is_must_use_ty(cx, *ty) }, ty::Tuple(substs) => substs.iter().any(|ty| is_must_use_ty(cx, ty)), - ty::Opaque(def_id, _) => { + ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }) => { for (predicate, _) in cx.tcx.explicit_item_bounds(*def_id) { if let ty::PredicateKind::Clause(ty::Clause::Trait(trait_predicate)) = predicate.kind().skip_binder() { if cx.tcx.has_attr(trait_predicate.trait_ref.def_id, sym::must_use) { @@ -631,7 +647,9 @@ pub fn ty_sig<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> Option<ExprFnSig<'t Some(ExprFnSig::Closure(decl, subs.as_closure().sig())) }, ty::FnDef(id, subs) => Some(ExprFnSig::Sig(cx.tcx.bound_fn_sig(id).subst(cx.tcx, subs), Some(id))), - ty::Opaque(id, _) => sig_from_bounds(cx, ty, cx.tcx.item_bounds(id), cx.tcx.opt_parent(id)), + ty::Alias(ty::Opaque, ty::AliasTy { def_id, .. }) => { + sig_from_bounds(cx, ty, cx.tcx.item_bounds(def_id), cx.tcx.opt_parent(def_id)) + }, ty::FnPtr(sig) => Some(ExprFnSig::Sig(sig, None)), ty::Dynamic(bounds, _, _) => { let lang_items = cx.tcx.lang_items(); @@ -650,7 +668,7 @@ pub fn ty_sig<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> Option<ExprFnSig<'t _ => None, } }, - ty::Projection(proj) => match cx.tcx.try_normalize_erasing_regions(cx.param_env, ty) { + ty::Alias(ty::Projection, proj) => match cx.tcx.try_normalize_erasing_regions(cx.param_env, ty) { Ok(normalized_ty) if normalized_ty != ty => ty_sig(cx, normalized_ty), _ => sig_for_projection(cx, proj).or_else(|| sig_from_bounds(cx, ty, cx.param_env.caller_bounds(), None)), }, @@ -685,8 +703,7 @@ fn sig_from_bounds<'tcx>( inputs = Some(i); }, PredicateKind::Clause(ty::Clause::Projection(p)) - if Some(p.projection_ty.item_def_id) == lang_items.fn_once_output() - && p.projection_ty.self_ty() == ty => + if Some(p.projection_ty.def_id) == lang_items.fn_once_output() && p.projection_ty.self_ty() == ty => { if output.is_some() { // Multiple different fn trait impls. Is this even allowed? @@ -701,14 +718,14 @@ fn sig_from_bounds<'tcx>( inputs.map(|ty| ExprFnSig::Trait(ty, output, predicates_id)) } -fn sig_for_projection<'tcx>(cx: &LateContext<'tcx>, ty: ProjectionTy<'tcx>) -> Option<ExprFnSig<'tcx>> { +fn sig_for_projection<'tcx>(cx: &LateContext<'tcx>, ty: AliasTy<'tcx>) -> Option<ExprFnSig<'tcx>> { let mut inputs = None; let mut output = None; let lang_items = cx.tcx.lang_items(); for (pred, _) in cx .tcx - .bound_explicit_item_bounds(ty.item_def_id) + .bound_explicit_item_bounds(ty.def_id) .subst_iter_copied(cx.tcx, ty.substs) { match pred.kind().skip_binder() { @@ -726,7 +743,7 @@ fn sig_for_projection<'tcx>(cx: &LateContext<'tcx>, ty: ProjectionTy<'tcx>) -> O inputs = Some(i); }, PredicateKind::Clause(ty::Clause::Projection(p)) - if Some(p.projection_ty.item_def_id) == lang_items.fn_once_output() => + if Some(p.projection_ty.def_id) == lang_items.fn_once_output() => { if output.is_some() { // Multiple different fn trait impls. Is this even allowed? @@ -980,13 +997,13 @@ pub fn make_projection<'tcx>( container_id: DefId, assoc_ty: Symbol, substs: impl IntoIterator<Item = impl Into<GenericArg<'tcx>>>, -) -> Option<ProjectionTy<'tcx>> { +) -> Option<AliasTy<'tcx>> { fn helper<'tcx>( tcx: TyCtxt<'tcx>, container_id: DefId, assoc_ty: Symbol, substs: SubstsRef<'tcx>, - ) -> Option<ProjectionTy<'tcx>> { + ) -> Option<AliasTy<'tcx>> { let Some(assoc_item) = tcx .associated_items(container_id) .find_by_name_and_kind(tcx, Ident::with_dummy_span(assoc_ty), AssocKind::Type, container_id) @@ -1039,10 +1056,7 @@ pub fn make_projection<'tcx>( } } - Some(ProjectionTy { - substs, - item_def_id: assoc_item.def_id, - }) + Some(tcx.mk_alias_ty(assoc_item.def_id, substs)) } helper( tcx, @@ -1065,7 +1079,7 @@ pub fn make_normalized_projection<'tcx>( assoc_ty: Symbol, substs: impl IntoIterator<Item = impl Into<GenericArg<'tcx>>>, ) -> Option<Ty<'tcx>> { - fn helper<'tcx>(tcx: TyCtxt<'tcx>, param_env: ParamEnv<'tcx>, ty: ProjectionTy<'tcx>) -> Option<Ty<'tcx>> { + fn helper<'tcx>(tcx: TyCtxt<'tcx>, param_env: ParamEnv<'tcx>, ty: AliasTy<'tcx>) -> Option<Ty<'tcx>> { #[cfg(debug_assertions)] if let Some((i, subst)) = ty .substs @@ -1081,7 +1095,7 @@ pub fn make_normalized_projection<'tcx>( ); return None; } - match tcx.try_normalize_erasing_regions(param_env, tcx.mk_projection(ty.item_def_id, ty.substs)) { + match tcx.try_normalize_erasing_regions(param_env, tcx.mk_projection(ty.def_id, ty.substs)) { Ok(ty) => Some(ty), Err(e) => { debug_assert!(false, "failed to normalize type `{ty}`: {e:#?}"); diff --git a/src/tools/clippy/declare_clippy_lint/Cargo.toml b/src/tools/clippy/declare_clippy_lint/Cargo.toml index 082570f1fe5..c01e1062cb5 100644 --- a/src/tools/clippy/declare_clippy_lint/Cargo.toml +++ b/src/tools/clippy/declare_clippy_lint/Cargo.toml @@ -1,6 +1,6 @@ [package] name = "declare_clippy_lint" -version = "0.1.67" +version = "0.1.68" edition = "2021" publish = false diff --git a/src/tools/clippy/rust-toolchain b/src/tools/clippy/rust-toolchain index 19fee38db46..8e21cef32ab 100644 --- a/src/tools/clippy/rust-toolchain +++ b/src/tools/clippy/rust-toolchain @@ -1,3 +1,3 @@ [toolchain] -channel = "nightly-2022-12-01" +channel = "nightly-2022-12-17" components = ["cargo", "llvm-tools", "rust-src", "rust-std", "rustc", "rustc-dev", "rustfmt"] diff --git a/src/tools/clippy/rustc_tools_util/CHANGELOG.md b/src/tools/clippy/rustc_tools_util/CHANGELOG.md new file mode 100644 index 00000000000..1b351da2e7b --- /dev/null +++ b/src/tools/clippy/rustc_tools_util/CHANGELOG.md @@ -0,0 +1,6 @@ +# Changelog + +## Version 0.3.0 + +* Added `setup_version_info!();` macro for automated scripts. +* `get_version_info!()` no longer requires the user to import `rustc_tools_util::VersionInfo` and `std::env` diff --git a/src/tools/clippy/rustc_tools_util/Cargo.toml b/src/tools/clippy/rustc_tools_util/Cargo.toml index 89c3d6aaa89..877049ae7d0 100644 --- a/src/tools/clippy/rustc_tools_util/Cargo.toml +++ b/src/tools/clippy/rustc_tools_util/Cargo.toml @@ -1,6 +1,6 @@ [package] name = "rustc_tools_util" -version = "0.2.1" +version = "0.3.0" description = "small helper to generate version information for git packages" repository = "https://github.com/rust-lang/rust-clippy" readme = "README.md" diff --git a/src/tools/clippy/rustc_tools_util/README.md b/src/tools/clippy/rustc_tools_util/README.md index e947f9c7e66..eefc661f963 100644 --- a/src/tools/clippy/rustc_tools_util/README.md +++ b/src/tools/clippy/rustc_tools_util/README.md @@ -13,43 +13,39 @@ build = "build.rs" List rustc_tools_util as regular AND build dependency. ````toml [dependencies] -rustc_tools_util = "0.2.1" +rustc_tools_util = "0.3.0" [build-dependencies] -rustc_tools_util = "0.2.1" +rustc_tools_util = "0.3.0" ```` In `build.rs`, generate the data in your `main()` -````rust + +```rust fn main() { - println!( - "cargo:rustc-env=GIT_HASH={}", - rustc_tools_util::get_commit_hash().unwrap_or_default() - ); - println!( - "cargo:rustc-env=COMMIT_DATE={}", - rustc_tools_util::get_commit_date().unwrap_or_default() - ); - println!( - "cargo:rustc-env=RUSTC_RELEASE_CHANNEL={}", - rustc_tools_util::get_channel().unwrap_or_default() - ); + rustc_tools_util::setup_version_info!(); } - -```` +``` Use the version information in your main.rs -````rust -use rustc_tools_util::*; +```rust fn show_version() { let version_info = rustc_tools_util::get_version_info!(); println!("{}", version_info); } -```` +``` + This gives the following output in clippy: -`clippy 0.0.212 (a416c5e 2018-12-14)` +`clippy 0.1.66 (a28f3c8 2022-11-20)` + +## Repository + +This project is part of the rust-lang/rust-clippy repository. The source code +can be found under `./rustc_tools_util/`. +The changelog for `rustc_tools_util` is available under: +[`rustc_tools_util/CHANGELOG.md`](https://github.com/rust-lang/rust-clippy/blob/master/rustc_tools_util/CHANGELOG.md) ## License diff --git a/src/tools/clippy/rustc_tools_util/src/lib.rs b/src/tools/clippy/rustc_tools_util/src/lib.rs index 01d25c53126..4c1d8c3733d 100644 --- a/src/tools/clippy/rustc_tools_util/src/lib.rs +++ b/src/tools/clippy/rustc_tools_util/src/lib.rs @@ -1,20 +1,20 @@ #![cfg_attr(feature = "deny-warnings", deny(warnings))] -use std::env; - +/// This macro creates the version string during compilation from the +/// current environment #[macro_export] macro_rules! get_version_info { () => {{ - let major = env!("CARGO_PKG_VERSION_MAJOR").parse::<u8>().unwrap(); - let minor = env!("CARGO_PKG_VERSION_MINOR").parse::<u8>().unwrap(); - let patch = env!("CARGO_PKG_VERSION_PATCH").parse::<u16>().unwrap(); - let crate_name = String::from(env!("CARGO_PKG_NAME")); + let major = std::env!("CARGO_PKG_VERSION_MAJOR").parse::<u8>().unwrap(); + let minor = std::env!("CARGO_PKG_VERSION_MINOR").parse::<u8>().unwrap(); + let patch = std::env!("CARGO_PKG_VERSION_PATCH").parse::<u16>().unwrap(); + let crate_name = String::from(std::env!("CARGO_PKG_NAME")); - let host_compiler = option_env!("RUSTC_RELEASE_CHANNEL").map(str::to_string); - let commit_hash = option_env!("GIT_HASH").map(str::to_string); - let commit_date = option_env!("COMMIT_DATE").map(str::to_string); + let host_compiler = std::option_env!("RUSTC_RELEASE_CHANNEL").map(str::to_string); + let commit_hash = std::option_env!("GIT_HASH").map(str::to_string); + let commit_date = std::option_env!("COMMIT_DATE").map(str::to_string); - VersionInfo { + $crate::VersionInfo { major, minor, patch, @@ -26,6 +26,24 @@ macro_rules! get_version_info { }}; } +/// This macro can be used in `build.rs` to automatically set the needed +/// environment values, namely `GIT_HASH`, `COMMIT_DATE` and +/// `RUSTC_RELEASE_CHANNEL` +#[macro_export] +macro_rules! setup_version_info { + () => {{ + println!( + "cargo:rustc-env=GIT_HASH={}", + $crate::get_commit_hash().unwrap_or_default() + ); + println!( + "cargo:rustc-env=COMMIT_DATE={}", + $crate::get_commit_date().unwrap_or_default() + ); + println!("cargo:rustc-env=RUSTC_RELEASE_CHANNEL={}", $crate::get_channel()); + }}; +} + // some code taken and adapted from RLS and cargo pub struct VersionInfo { pub major: u8, @@ -101,7 +119,7 @@ pub fn get_commit_date() -> Option<String> { #[must_use] pub fn get_channel() -> String { - match env::var("CFG_RELEASE_CHANNEL") { + match std::env::var("CFG_RELEASE_CHANNEL") { Ok(channel) => channel, Err(_) => { // if that failed, try to ask rustc -V, do some parsing and find out @@ -136,8 +154,8 @@ mod test { fn test_struct_local() { let vi = get_version_info!(); assert_eq!(vi.major, 0); - assert_eq!(vi.minor, 2); - assert_eq!(vi.patch, 1); + assert_eq!(vi.minor, 3); + assert_eq!(vi.patch, 0); assert_eq!(vi.crate_name, "rustc_tools_util"); // hard to make positive tests for these since they will always change assert!(vi.commit_hash.is_none()); @@ -147,7 +165,7 @@ mod test { #[test] fn test_display_local() { let vi = get_version_info!(); - assert_eq!(vi.to_string(), "rustc_tools_util 0.2.1"); + assert_eq!(vi.to_string(), "rustc_tools_util 0.3.0"); } #[test] @@ -156,7 +174,7 @@ mod test { let s = format!("{vi:?}"); assert_eq!( s, - "VersionInfo { crate_name: \"rustc_tools_util\", major: 0, minor: 2, patch: 1 }" + "VersionInfo { crate_name: \"rustc_tools_util\", major: 0, minor: 3, patch: 0 }" ); } } diff --git a/src/tools/clippy/src/driver.rs b/src/tools/clippy/src/driver.rs index 9ec4df8e651..bcc096c570e 100644 --- a/src/tools/clippy/src/driver.rs +++ b/src/tools/clippy/src/driver.rs @@ -19,7 +19,6 @@ extern crate rustc_span; use rustc_interface::interface; use rustc_session::parse::ParseSess; use rustc_span::symbol::Symbol; -use rustc_tools_util::VersionInfo; use std::borrow::Cow; use std::env; diff --git a/src/tools/clippy/src/main.rs b/src/tools/clippy/src/main.rs index d418d2daa31..7a78b32620d 100644 --- a/src/tools/clippy/src/main.rs +++ b/src/tools/clippy/src/main.rs @@ -2,7 +2,6 @@ // warn on lints, that are included in `rust-lang/rust`s bootstrap #![warn(rust_2018_idioms, unused_lifetimes)] -use rustc_tools_util::VersionInfo; use std::env; use std::path::PathBuf; use std::process::{self, Command}; diff --git a/src/tools/clippy/tests/ui-internal/unnecessary_def_path_hardcoded_path.stderr b/src/tools/clippy/tests/ui-internal/unnecessary_def_path_hardcoded_path.stderr index 2a240cc249b..3ca45404e44 100644 --- a/src/tools/clippy/tests/ui-internal/unnecessary_def_path_hardcoded_path.stderr +++ b/src/tools/clippy/tests/ui-internal/unnecessary_def_path_hardcoded_path.stderr @@ -7,14 +7,6 @@ LL | const DEREF_TRAIT: [&str; 4] = ["core", "ops", "deref", "Deref"]; = help: convert all references to use `sym::Deref` = note: `-D clippy::unnecessary-def-path` implied by `-D warnings` -error: hardcoded path to a diagnostic item - --> $DIR/unnecessary_def_path_hardcoded_path.rs:12:43 - | -LL | const DEREF_TRAIT_METHOD: [&str; 5] = ["core", "ops", "deref", "Deref", "deref"]; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - | - = help: convert all references to use `sym::deref_method` - error: hardcoded path to a language item --> $DIR/unnecessary_def_path_hardcoded_path.rs:11:40 | @@ -23,5 +15,13 @@ LL | const DEREF_MUT_TRAIT: [&str; 4] = ["core", "ops", "deref", "DerefMut"] | = help: convert all references to use `LangItem::DerefMut` +error: hardcoded path to a diagnostic item + --> $DIR/unnecessary_def_path_hardcoded_path.rs:12:43 + | +LL | const DEREF_TRAIT_METHOD: [&str; 5] = ["core", "ops", "deref", "Deref", "deref"]; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = help: convert all references to use `sym::deref_method` + error: aborting due to 3 previous errors diff --git a/src/tools/clippy/tests/ui-toml/arithmetic_side_effects_allowed/arithmetic_side_effects_allowed.rs b/src/tools/clippy/tests/ui-toml/arithmetic_side_effects_allowed/arithmetic_side_effects_allowed.rs index e8a023ab176..36db9e54a22 100644 --- a/src/tools/clippy/tests/ui-toml/arithmetic_side_effects_allowed/arithmetic_side_effects_allowed.rs +++ b/src/tools/clippy/tests/ui-toml/arithmetic_side_effects_allowed/arithmetic_side_effects_allowed.rs @@ -2,32 +2,117 @@ use core::ops::{Add, Neg}; -#[derive(Clone, Copy)] -struct Point { - x: i32, - y: i32, +macro_rules! create { + ($name:ident) => { + #[allow(clippy::arithmetic_side_effects)] + #[derive(Clone, Copy)] + struct $name; + + impl Add<$name> for $name { + type Output = $name; + fn add(self, other: $name) -> Self::Output { + todo!() + } + } + + impl Add<i32> for $name { + type Output = $name; + fn add(self, other: i32) -> Self::Output { + todo!() + } + } + + impl Add<$name> for i32 { + type Output = $name; + fn add(self, other: $name) -> Self::Output { + todo!() + } + } + + impl Add<i64> for $name { + type Output = $name; + fn add(self, other: i64) -> Self::Output { + todo!() + } + } + + impl Add<$name> for i64 { + type Output = $name; + fn add(self, other: $name) -> Self::Output { + todo!() + } + } + + impl Neg for $name { + type Output = $name; + fn neg(self) -> Self::Output { + todo!() + } + } + }; } -impl Add for Point { - type Output = Self; +create!(Foo); +create!(Bar); +create!(Baz); +create!(OutOfNames); - fn add(self, other: Self) -> Self { - todo!() - } +fn lhs_and_rhs_are_equal() { + // is explicitly on the list + let _ = OutOfNames + OutOfNames; + // is explicitly on the list + let _ = Foo + Foo; + // is implicitly on the list + let _ = Bar + Bar; + // not on the list + let _ = Baz + Baz; } -impl Neg for Point { - type Output = Self; +fn lhs_is_different() { + // is explicitly on the list + let _ = 1i32 + OutOfNames; + // is explicitly on the list + let _ = 1i32 + Foo; + // is implicitly on the list + let _ = 1i32 + Bar; + // not on the list + let _ = 1i32 + Baz; - fn neg(self) -> Self::Output { - todo!() - } + // not on the list + let _ = 1i64 + Foo; + // is implicitly on the list + let _ = 1i64 + Bar; + // not on the list + let _ = 1i64 + Baz; } -fn main() { - let _ = Point { x: 1, y: 0 } + Point { x: 2, y: 3 }; +fn rhs_is_different() { + // is explicitly on the list + let _ = OutOfNames + 1i32; + // is explicitly on the list + let _ = Foo + 1i32; + // is implicitly on the list + let _ = Bar + 1i32; + // not on the list + let _ = Baz + 1i32; + + // not on the list + let _ = Foo + 1i64; + // is implicitly on the list + let _ = Bar + 1i64; + // not on the list + let _ = Baz + 1i64; +} - let point: Point = Point { x: 1, y: 0 }; - let _ = point + point; - let _ = -point; +fn unary() { + // is explicitly on the list + let _ = -OutOfNames; + // is specifically on the list + let _ = -Foo; + // not on the list + let _ = -Bar; + // not on the list + let _ = -Baz; } + +fn main() {} diff --git a/src/tools/clippy/tests/ui-toml/arithmetic_side_effects_allowed/arithmetic_side_effects_allowed.stderr b/src/tools/clippy/tests/ui-toml/arithmetic_side_effects_allowed/arithmetic_side_effects_allowed.stderr new file mode 100644 index 00000000000..ad89534aa1b --- /dev/null +++ b/src/tools/clippy/tests/ui-toml/arithmetic_side_effects_allowed/arithmetic_side_effects_allowed.stderr @@ -0,0 +1,58 @@ +error: arithmetic operation that can potentially result in unexpected side-effects + --> $DIR/arithmetic_side_effects_allowed.rs:68:13 + | +LL | let _ = Baz + Baz; + | ^^^^^^^^^ + | + = note: `-D clippy::arithmetic-side-effects` implied by `-D warnings` + +error: arithmetic operation that can potentially result in unexpected side-effects + --> $DIR/arithmetic_side_effects_allowed.rs:79:13 + | +LL | let _ = 1i32 + Baz; + | ^^^^^^^^^^ + +error: arithmetic operation that can potentially result in unexpected side-effects + --> $DIR/arithmetic_side_effects_allowed.rs:82:13 + | +LL | let _ = 1i64 + Foo; + | ^^^^^^^^^^ + +error: arithmetic operation that can potentially result in unexpected side-effects + --> $DIR/arithmetic_side_effects_allowed.rs:86:13 + | +LL | let _ = 1i64 + Baz; + | ^^^^^^^^^^ + +error: arithmetic operation that can potentially result in unexpected side-effects + --> $DIR/arithmetic_side_effects_allowed.rs:97:13 + | +LL | let _ = Baz + 1i32; + | ^^^^^^^^^^ + +error: arithmetic operation that can potentially result in unexpected side-effects + --> $DIR/arithmetic_side_effects_allowed.rs:100:13 + | +LL | let _ = Foo + 1i64; + | ^^^^^^^^^^ + +error: arithmetic operation that can potentially result in unexpected side-effects + --> $DIR/arithmetic_side_effects_allowed.rs:104:13 + | +LL | let _ = Baz + 1i64; + | ^^^^^^^^^^ + +error: arithmetic operation that can potentially result in unexpected side-effects + --> $DIR/arithmetic_side_effects_allowed.rs:113:13 + | +LL | let _ = -Bar; + | ^^^^ + +error: arithmetic operation that can potentially result in unexpected side-effects + --> $DIR/arithmetic_side_effects_allowed.rs:115:13 + | +LL | let _ = -Baz; + | ^^^^ + +error: aborting due to 9 previous errors + diff --git a/src/tools/clippy/tests/ui-toml/arithmetic_side_effects_allowed/clippy.toml b/src/tools/clippy/tests/ui-toml/arithmetic_side_effects_allowed/clippy.toml index e736256f29a..89cbea7ecfe 100644 --- a/src/tools/clippy/tests/ui-toml/arithmetic_side_effects_allowed/clippy.toml +++ b/src/tools/clippy/tests/ui-toml/arithmetic_side_effects_allowed/clippy.toml @@ -1 +1,11 @@ -arithmetic-side-effects-allowed = ["Point"] +arithmetic-side-effects-allowed = [ + "OutOfNames" +] +arithmetic-side-effects-allowed-binary = [ + ["Foo", "Foo"], + ["Foo", "i32"], + ["i32", "Foo"], + ["Bar", "*"], + ["*", "Bar"], +] +arithmetic-side-effects-allowed-unary = ["Foo"] diff --git a/src/tools/clippy/tests/ui-toml/suppress_lint_in_const/clippy.toml b/src/tools/clippy/tests/ui-toml/suppress_lint_in_const/clippy.toml new file mode 100644 index 00000000000..1b9384d7e3e --- /dev/null +++ b/src/tools/clippy/tests/ui-toml/suppress_lint_in_const/clippy.toml @@ -0,0 +1 @@ +suppress-restriction-lint-in-const = true diff --git a/src/tools/clippy/tests/ui-toml/suppress_lint_in_const/test.rs b/src/tools/clippy/tests/ui-toml/suppress_lint_in_const/test.rs new file mode 100644 index 00000000000..5a2df9f6c5d --- /dev/null +++ b/src/tools/clippy/tests/ui-toml/suppress_lint_in_const/test.rs @@ -0,0 +1,60 @@ +#![feature(inline_const)] +#![warn(clippy::indexing_slicing)] +// We also check the out_of_bounds_indexing lint here, because it lints similar things and +// we want to avoid false positives. +#![warn(clippy::out_of_bounds_indexing)] +#![allow(unconditional_panic, clippy::no_effect, clippy::unnecessary_operation)] + +const ARR: [i32; 2] = [1, 2]; +const REF: &i32 = &ARR[idx()]; // Ok, should not produce stderr, since `suppress-restriction-lint-in-const` is set true. +const REF_ERR: &i32 = &ARR[idx4()]; // Ok, let rustc handle const contexts. + +const fn idx() -> usize { + 1 +} +const fn idx4() -> usize { + 4 +} + +fn main() { + let x = [1, 2, 3, 4]; + let index: usize = 1; + x[index]; + x[4]; // Ok, let rustc's `unconditional_panic` lint handle `usize` indexing on arrays. + x[1 << 3]; // Ok, let rustc's `unconditional_panic` lint handle `usize` indexing on arrays. + + x[0]; // Ok, should not produce stderr. + x[3]; // Ok, should not produce stderr. + x[const { idx() }]; // Ok, should not produce stderr. + x[const { idx4() }]; // Ok, let rustc's `unconditional_panic` lint handle `usize` indexing on arrays. + const { &ARR[idx()] }; // Ok, should not produce stderr, since `suppress-restriction-lint-in-const` is set true. + const { &ARR[idx4()] }; // Ok, should not produce stderr, since `suppress-restriction-lint-in-const` is set true. + + let y = &x; + y[0]; // Ok, referencing shouldn't affect this lint. See the issue 6021 + y[4]; // Ok, rustc will handle references too. + + let v = vec![0; 5]; + v[0]; + v[10]; + v[1 << 3]; + + const N: usize = 15; // Out of bounds + const M: usize = 3; // In bounds + x[N]; // Ok, let rustc's `unconditional_panic` lint handle `usize` indexing on arrays. + x[M]; // Ok, should not produce stderr. + v[N]; + v[M]; +} + +/// An opaque integer representation +pub struct Integer<'a> { + /// The underlying data + value: &'a [u8], +} +impl<'a> Integer<'a> { + // Check whether `self` holds a negative number or not + pub const fn is_negative(&self) -> bool { + self.value[0] & 0b1000_0000 != 0 + } +} diff --git a/src/tools/clippy/tests/ui-toml/suppress_lint_in_const/test.stderr b/src/tools/clippy/tests/ui-toml/suppress_lint_in_const/test.stderr new file mode 100644 index 00000000000..bc178b7e131 --- /dev/null +++ b/src/tools/clippy/tests/ui-toml/suppress_lint_in_const/test.stderr @@ -0,0 +1,70 @@ +error[E0080]: evaluation of `main::{constant#3}` failed + --> $DIR/test.rs:31:14 + | +LL | const { &ARR[idx4()] }; // Ok, should not produce stderr, since `suppress-restriction-lint-in-const` is set true. + | ^^^^^^^^^^^ index out of bounds: the length is 2 but the index is 4 + +note: erroneous constant used + --> $DIR/test.rs:31:5 + | +LL | const { &ARR[idx4()] }; // Ok, should not produce stderr, since `suppress-restriction-lint-in-const` is set true. + | ^^^^^^^^^^^^^^^^^^^^^^ + +error: indexing may panic + --> $DIR/test.rs:22:5 + | +LL | x[index]; + | ^^^^^^^^ + | + = help: consider using `.get(n)` or `.get_mut(n)` instead + = note: `-D clippy::indexing-slicing` implied by `-D warnings` + +error: indexing may panic + --> $DIR/test.rs:38:5 + | +LL | v[0]; + | ^^^^ + | + = help: consider using `.get(n)` or `.get_mut(n)` instead + +error: indexing may panic + --> $DIR/test.rs:39:5 + | +LL | v[10]; + | ^^^^^ + | + = help: consider using `.get(n)` or `.get_mut(n)` instead + +error: indexing may panic + --> $DIR/test.rs:40:5 + | +LL | v[1 << 3]; + | ^^^^^^^^^ + | + = help: consider using `.get(n)` or `.get_mut(n)` instead + +error: indexing may panic + --> $DIR/test.rs:46:5 + | +LL | v[N]; + | ^^^^ + | + = help: consider using `.get(n)` or `.get_mut(n)` instead + +error: indexing may panic + --> $DIR/test.rs:47:5 + | +LL | v[M]; + | ^^^^ + | + = help: consider using `.get(n)` or `.get_mut(n)` instead + +error[E0080]: evaluation of constant value failed + --> $DIR/test.rs:10:24 + | +LL | const REF_ERR: &i32 = &ARR[idx4()]; // Ok, let rustc handle const contexts. + | ^^^^^^^^^^^ index out of bounds: the length is 2 but the index is 4 + +error: aborting due to 8 previous errors + +For more information about this error, try `rustc --explain E0080`. diff --git a/src/tools/clippy/tests/ui-toml/toml_unknown_key/conf_unknown_key.stderr b/src/tools/clippy/tests/ui-toml/toml_unknown_key/conf_unknown_key.stderr index 01a5e962c94..a22c6a5a060 100644 --- a/src/tools/clippy/tests/ui-toml/toml_unknown_key/conf_unknown_key.stderr +++ b/src/tools/clippy/tests/ui-toml/toml_unknown_key/conf_unknown_key.stderr @@ -6,6 +6,8 @@ error: error reading Clippy's configuration file `$DIR/clippy.toml`: unknown fie allow-unwrap-in-tests allowed-scripts arithmetic-side-effects-allowed + arithmetic-side-effects-allowed-binary + arithmetic-side-effects-allowed-unary array-size-threshold avoid-breaking-exported-api await-holding-invalid-types @@ -35,6 +37,7 @@ error: error reading Clippy's configuration file `$DIR/clippy.toml`: unknown fie pass-by-value-size-limit single-char-binding-names-threshold standard-macro-braces + suppress-restriction-lint-in-const third-party too-large-for-stack too-many-arguments-threshold diff --git a/src/tools/clippy/tests/ui/almost_complete_letter_range.stderr b/src/tools/clippy/tests/ui/almost_complete_letter_range.stderr deleted file mode 100644 index 9abf6d6c5e7..00000000000 --- a/src/tools/clippy/tests/ui/almost_complete_letter_range.stderr +++ /dev/null @@ -1,113 +0,0 @@ -error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:29:17 - | -LL | let _ = ('a') ..'z'; - | ^^^^^^--^^^ - | | - | help: use an inclusive range: `..=` - | - = note: `-D clippy::almost-complete-letter-range` implied by `-D warnings` - -error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:30:17 - | -LL | let _ = 'A' .. ('Z'); - | ^^^^--^^^^^^ - | | - | help: use an inclusive range: `..=` - -error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:36:13 - | -LL | let _ = (b'a')..(b'z'); - | ^^^^^^--^^^^^^ - | | - | help: use an inclusive range: `..=` - -error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:37:13 - | -LL | let _ = b'A'..b'Z'; - | ^^^^--^^^^ - | | - | help: use an inclusive range: `..=` - -error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:42:13 - | -LL | let _ = a!()..'z'; - | ^^^^--^^^ - | | - | help: use an inclusive range: `..=` - -error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:45:9 - | -LL | b'a'..b'z' if true => 1, - | ^^^^--^^^^ - | | - | help: use an inclusive range: `..=` - -error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:46:9 - | -LL | b'A'..b'Z' if true => 2, - | ^^^^--^^^^ - | | - | help: use an inclusive range: `..=` - -error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:53:9 - | -LL | 'a'..'z' if true => 1, - | ^^^--^^^ - | | - | help: use an inclusive range: `..=` - -error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:54:9 - | -LL | 'A'..'Z' if true => 2, - | ^^^--^^^ - | | - | help: use an inclusive range: `..=` - -error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:22:17 - | -LL | let _ = 'a'..'z'; - | ^^^--^^^ - | | - | help: use an inclusive range: `..=` -... -LL | b!(); - | ---- in this macro invocation - | - = note: this error originates in the macro `b` (in Nightly builds, run with -Z macro-backtrace for more info) - -error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:67:9 - | -LL | 'a'..'z' => 1, - | ^^^--^^^ - | | - | help: use an inclusive range: `...` - -error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:74:13 - | -LL | let _ = 'a'..'z'; - | ^^^--^^^ - | | - | help: use an inclusive range: `..=` - -error: almost complete ascii letter range - --> $DIR/almost_complete_letter_range.rs:76:9 - | -LL | 'a'..'z' => 1, - | ^^^--^^^ - | | - | help: use an inclusive range: `..=` - -error: aborting due to 13 previous errors - diff --git a/src/tools/clippy/tests/ui/almost_complete_letter_range.fixed b/src/tools/clippy/tests/ui/almost_complete_range.fixed index adcbd4d5134..6046addf719 100644 --- a/src/tools/clippy/tests/ui/almost_complete_letter_range.fixed +++ b/src/tools/clippy/tests/ui/almost_complete_range.fixed @@ -4,9 +4,10 @@ #![feature(exclusive_range_pattern)] #![feature(stmt_expr_attributes)] -#![warn(clippy::almost_complete_letter_range)] +#![warn(clippy::almost_complete_range)] #![allow(ellipsis_inclusive_range_patterns)] #![allow(clippy::needless_parens_on_range_literals)] +#![allow(clippy::double_parens)] #[macro_use] extern crate macro_rules; @@ -16,10 +17,22 @@ macro_rules! a { 'a' }; } +macro_rules! A { + () => { + 'A' + }; +} +macro_rules! zero { + () => { + '0' + }; +} macro_rules! b { () => { let _ = 'a'..='z'; + let _ = 'A'..='Z'; + let _ = '0'..='9'; }; } @@ -28,36 +41,46 @@ fn main() { { let _ = ('a') ..='z'; let _ = 'A' ..= ('Z'); + let _ = ((('0'))) ..= ('9'); } let _ = 'b'..'z'; let _ = 'B'..'Z'; + let _ = '1'..'9'; let _ = (b'a')..=(b'z'); let _ = b'A'..=b'Z'; + let _ = b'0'..=b'9'; let _ = b'b'..b'z'; let _ = b'B'..b'Z'; + let _ = b'1'..b'9'; let _ = a!()..='z'; + let _ = A!()..='Z'; + let _ = zero!()..='9'; let _ = match 0u8 { b'a'..=b'z' if true => 1, b'A'..=b'Z' if true => 2, - b'b'..b'z' => 3, - b'B'..b'Z' => 4, - _ => 5, + b'0'..=b'9' if true => 3, + b'b'..b'z' => 4, + b'B'..b'Z' => 5, + b'1'..b'9' => 6, + _ => 7, }; let _ = match 'x' { 'a'..='z' if true => 1, 'A'..='Z' if true => 2, - 'b'..'z' => 3, - 'B'..'Z' => 4, - _ => 5, + '0'..='9' if true => 3, + 'b'..'z' => 4, + 'B'..'Z' => 5, + '1'..'9' => 6, + _ => 7, }; - almost_complete_letter_range!(); + almost_complete_range!(); b!(); } @@ -65,15 +88,21 @@ fn main() { fn _under_msrv() { let _ = match 'a' { 'a'...'z' => 1, - _ => 2, + 'A'...'Z' => 2, + '0'...'9' => 3, + _ => 4, }; } #[clippy::msrv = "1.26"] fn _meets_msrv() { let _ = 'a'..='z'; + let _ = 'A'..='Z'; + let _ = '0'..='9'; let _ = match 'a' { 'a'..='z' => 1, - _ => 2, + 'A'..='Z' => 1, + '0'..='9' => 3, + _ => 4, }; } diff --git a/src/tools/clippy/tests/ui/almost_complete_letter_range.rs b/src/tools/clippy/tests/ui/almost_complete_range.rs index 9979316eca4..ae7e07ab872 100644 --- a/src/tools/clippy/tests/ui/almost_complete_letter_range.rs +++ b/src/tools/clippy/tests/ui/almost_complete_range.rs @@ -4,9 +4,10 @@ #![feature(exclusive_range_pattern)] #![feature(stmt_expr_attributes)] -#![warn(clippy::almost_complete_letter_range)] +#![warn(clippy::almost_complete_range)] #![allow(ellipsis_inclusive_range_patterns)] #![allow(clippy::needless_parens_on_range_literals)] +#![allow(clippy::double_parens)] #[macro_use] extern crate macro_rules; @@ -16,10 +17,22 @@ macro_rules! a { 'a' }; } +macro_rules! A { + () => { + 'A' + }; +} +macro_rules! zero { + () => { + '0' + }; +} macro_rules! b { () => { let _ = 'a'..'z'; + let _ = 'A'..'Z'; + let _ = '0'..'9'; }; } @@ -28,36 +41,46 @@ fn main() { { let _ = ('a') ..'z'; let _ = 'A' .. ('Z'); + let _ = ((('0'))) .. ('9'); } let _ = 'b'..'z'; let _ = 'B'..'Z'; + let _ = '1'..'9'; let _ = (b'a')..(b'z'); let _ = b'A'..b'Z'; + let _ = b'0'..b'9'; let _ = b'b'..b'z'; let _ = b'B'..b'Z'; + let _ = b'1'..b'9'; let _ = a!()..'z'; + let _ = A!()..'Z'; + let _ = zero!()..'9'; let _ = match 0u8 { b'a'..b'z' if true => 1, b'A'..b'Z' if true => 2, - b'b'..b'z' => 3, - b'B'..b'Z' => 4, - _ => 5, + b'0'..b'9' if true => 3, + b'b'..b'z' => 4, + b'B'..b'Z' => 5, + b'1'..b'9' => 6, + _ => 7, }; let _ = match 'x' { 'a'..'z' if true => 1, 'A'..'Z' if true => 2, - 'b'..'z' => 3, - 'B'..'Z' => 4, - _ => 5, + '0'..'9' if true => 3, + 'b'..'z' => 4, + 'B'..'Z' => 5, + '1'..'9' => 6, + _ => 7, }; - almost_complete_letter_range!(); + almost_complete_range!(); b!(); } @@ -65,15 +88,21 @@ fn main() { fn _under_msrv() { let _ = match 'a' { 'a'..'z' => 1, - _ => 2, + 'A'..'Z' => 2, + '0'..'9' => 3, + _ => 4, }; } #[clippy::msrv = "1.26"] fn _meets_msrv() { let _ = 'a'..'z'; + let _ = 'A'..'Z'; + let _ = '0'..'9'; let _ = match 'a' { 'a'..'z' => 1, - _ => 2, + 'A'..'Z' => 1, + '0'..'9' => 3, + _ => 4, }; } diff --git a/src/tools/clippy/tests/ui/almost_complete_range.stderr b/src/tools/clippy/tests/ui/almost_complete_range.stderr new file mode 100644 index 00000000000..a7a53287850 --- /dev/null +++ b/src/tools/clippy/tests/ui/almost_complete_range.stderr @@ -0,0 +1,235 @@ +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:42:17 + | +LL | let _ = ('a') ..'z'; + | ^^^^^^--^^^ + | | + | help: use an inclusive range: `..=` + | + = note: `-D clippy::almost-complete-range` implied by `-D warnings` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:43:17 + | +LL | let _ = 'A' .. ('Z'); + | ^^^^--^^^^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:44:17 + | +LL | let _ = ((('0'))) .. ('9'); + | ^^^^^^^^^^--^^^^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:51:13 + | +LL | let _ = (b'a')..(b'z'); + | ^^^^^^--^^^^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:52:13 + | +LL | let _ = b'A'..b'Z'; + | ^^^^--^^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:53:13 + | +LL | let _ = b'0'..b'9'; + | ^^^^--^^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:59:13 + | +LL | let _ = a!()..'z'; + | ^^^^--^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:60:13 + | +LL | let _ = A!()..'Z'; + | ^^^^--^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:61:13 + | +LL | let _ = zero!()..'9'; + | ^^^^^^^--^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:64:9 + | +LL | b'a'..b'z' if true => 1, + | ^^^^--^^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:65:9 + | +LL | b'A'..b'Z' if true => 2, + | ^^^^--^^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:66:9 + | +LL | b'0'..b'9' if true => 3, + | ^^^^--^^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:74:9 + | +LL | 'a'..'z' if true => 1, + | ^^^--^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:75:9 + | +LL | 'A'..'Z' if true => 2, + | ^^^--^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:76:9 + | +LL | '0'..'9' if true => 3, + | ^^^--^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:33:17 + | +LL | let _ = 'a'..'z'; + | ^^^--^^^ + | | + | help: use an inclusive range: `..=` +... +LL | b!(); + | ---- in this macro invocation + | + = note: this error originates in the macro `b` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:34:17 + | +LL | let _ = 'A'..'Z'; + | ^^^--^^^ + | | + | help: use an inclusive range: `..=` +... +LL | b!(); + | ---- in this macro invocation + | + = note: this error originates in the macro `b` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:35:17 + | +LL | let _ = '0'..'9'; + | ^^^--^^^ + | | + | help: use an inclusive range: `..=` +... +LL | b!(); + | ---- in this macro invocation + | + = note: this error originates in the macro `b` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:90:9 + | +LL | 'a'..'z' => 1, + | ^^^--^^^ + | | + | help: use an inclusive range: `...` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:91:9 + | +LL | 'A'..'Z' => 2, + | ^^^--^^^ + | | + | help: use an inclusive range: `...` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:92:9 + | +LL | '0'..'9' => 3, + | ^^^--^^^ + | | + | help: use an inclusive range: `...` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:99:13 + | +LL | let _ = 'a'..'z'; + | ^^^--^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:100:13 + | +LL | let _ = 'A'..'Z'; + | ^^^--^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:101:13 + | +LL | let _ = '0'..'9'; + | ^^^--^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:103:9 + | +LL | 'a'..'z' => 1, + | ^^^--^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:104:9 + | +LL | 'A'..'Z' => 1, + | ^^^--^^^ + | | + | help: use an inclusive range: `..=` + +error: almost complete ascii range + --> $DIR/almost_complete_range.rs:105:9 + | +LL | '0'..'9' => 3, + | ^^^--^^^ + | | + | help: use an inclusive range: `..=` + +error: aborting due to 27 previous errors + diff --git a/src/tools/clippy/tests/ui/arithmetic_side_effects.stderr b/src/tools/clippy/tests/ui/arithmetic_side_effects.stderr index 0259a0824e7..9fe4b7cf28d 100644 --- a/src/tools/clippy/tests/ui/arithmetic_side_effects.stderr +++ b/src/tools/clippy/tests/ui/arithmetic_side_effects.stderr @@ -1,28 +1,10 @@ error: arithmetic operation that can potentially result in unexpected side-effects - --> $DIR/arithmetic_side_effects.rs:78:13 - | -LL | let _ = String::new() + ""; - | ^^^^^^^^^^^^^^^^^^ - | - = note: `-D clippy::arithmetic-side-effects` implied by `-D warnings` - -error: arithmetic operation that can potentially result in unexpected side-effects - --> $DIR/arithmetic_side_effects.rs:86:27 - | -LL | let inferred_string = string + ""; - | ^^^^^^^^^^^ - -error: arithmetic operation that can potentially result in unexpected side-effects - --> $DIR/arithmetic_side_effects.rs:90:13 - | -LL | let _ = inferred_string + ""; - | ^^^^^^^^^^^^^^^^^^^^ - -error: arithmetic operation that can potentially result in unexpected side-effects --> $DIR/arithmetic_side_effects.rs:165:5 | LL | _n += 1; | ^^^^^^^ + | + = note: `-D clippy::arithmetic-side-effects` implied by `-D warnings` error: arithmetic operation that can potentially result in unexpected side-effects --> $DIR/arithmetic_side_effects.rs:166:5 @@ -348,5 +330,5 @@ error: arithmetic operation that can potentially result in unexpected side-effec LL | _n = -&_n; | ^^^^ -error: aborting due to 58 previous errors +error: aborting due to 55 previous errors diff --git a/src/tools/clippy/tests/ui/auxiliary/macro_rules.rs b/src/tools/clippy/tests/ui/auxiliary/macro_rules.rs index ef3ca9aea38..1e5f20e8c39 100644 --- a/src/tools/clippy/tests/ui/auxiliary/macro_rules.rs +++ b/src/tools/clippy/tests/ui/auxiliary/macro_rules.rs @@ -142,8 +142,10 @@ macro_rules! equatable_if_let { } #[macro_export] -macro_rules! almost_complete_letter_range { +macro_rules! almost_complete_range { () => { let _ = 'a'..'z'; + let _ = 'A'..'Z'; + let _ = '0'..'9'; }; } diff --git a/src/tools/clippy/tests/ui/cast_lossless_integer.fixed b/src/tools/clippy/tests/ui/cast_lossless_integer.fixed index 72a708b4073..925cbf25368 100644 --- a/src/tools/clippy/tests/ui/cast_lossless_integer.fixed +++ b/src/tools/clippy/tests/ui/cast_lossless_integer.fixed @@ -45,3 +45,9 @@ mod cast_lossless_in_impl { } } } + +#[derive(PartialEq, Debug)] +#[repr(i64)] +enum Test { + A = u32::MAX as i64 + 1, +} diff --git a/src/tools/clippy/tests/ui/cast_lossless_integer.rs b/src/tools/clippy/tests/ui/cast_lossless_integer.rs index 34bb47181e6..c82bd9108d2 100644 --- a/src/tools/clippy/tests/ui/cast_lossless_integer.rs +++ b/src/tools/clippy/tests/ui/cast_lossless_integer.rs @@ -45,3 +45,9 @@ mod cast_lossless_in_impl { } } } + +#[derive(PartialEq, Debug)] +#[repr(i64)] +enum Test { + A = u32::MAX as i64 + 1, +} diff --git a/src/tools/clippy/tests/ui/collapsible_str_replace.fixed b/src/tools/clippy/tests/ui/collapsible_str_replace.fixed index 49fc9a9629e..9792ae9ed6b 100644 --- a/src/tools/clippy/tests/ui/collapsible_str_replace.fixed +++ b/src/tools/clippy/tests/ui/collapsible_str_replace.fixed @@ -1,5 +1,6 @@ // run-rustfix +#![allow(unused)] #![warn(clippy::collapsible_str_replace)] fn get_filter() -> char { @@ -71,3 +72,13 @@ fn main() { .replace('u', iter.next().unwrap()) .replace('s', iter.next().unwrap()); } + +#[clippy::msrv = "1.57"] +fn msrv_1_57() { + let _ = "".replace('a', "1.57").replace('b', "1.57"); +} + +#[clippy::msrv = "1.58"] +fn msrv_1_58() { + let _ = "".replace(['a', 'b'], "1.58"); +} diff --git a/src/tools/clippy/tests/ui/collapsible_str_replace.rs b/src/tools/clippy/tests/ui/collapsible_str_replace.rs index e3e25c4146f..baee185b79e 100644 --- a/src/tools/clippy/tests/ui/collapsible_str_replace.rs +++ b/src/tools/clippy/tests/ui/collapsible_str_replace.rs @@ -1,5 +1,6 @@ // run-rustfix +#![allow(unused)] #![warn(clippy::collapsible_str_replace)] fn get_filter() -> char { @@ -74,3 +75,13 @@ fn main() { .replace('u', iter.next().unwrap()) .replace('s', iter.next().unwrap()); } + +#[clippy::msrv = "1.57"] +fn msrv_1_57() { + let _ = "".replace('a', "1.57").replace('b', "1.57"); +} + +#[clippy::msrv = "1.58"] +fn msrv_1_58() { + let _ = "".replace('a', "1.58").replace('b', "1.58"); +} diff --git a/src/tools/clippy/tests/ui/collapsible_str_replace.stderr b/src/tools/clippy/tests/ui/collapsible_str_replace.stderr index 8e3daf3b898..223358cf53f 100644 --- a/src/tools/clippy/tests/ui/collapsible_str_replace.stderr +++ b/src/tools/clippy/tests/ui/collapsible_str_replace.stderr @@ -1,5 +1,5 @@ error: used consecutive `str::replace` call - --> $DIR/collapsible_str_replace.rs:19:27 + --> $DIR/collapsible_str_replace.rs:20:27 | LL | let _ = "hesuo worpd".replace('s', "l").replace('u', "l"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `replace(['s', 'u'], "l")` @@ -7,19 +7,19 @@ LL | let _ = "hesuo worpd".replace('s', "l").replace('u', "l"); = note: `-D clippy::collapsible-str-replace` implied by `-D warnings` error: used consecutive `str::replace` call - --> $DIR/collapsible_str_replace.rs:21:27 + --> $DIR/collapsible_str_replace.rs:22:27 | LL | let _ = "hesuo worpd".replace('s', l).replace('u', l); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `replace(['s', 'u'], l)` error: used consecutive `str::replace` call - --> $DIR/collapsible_str_replace.rs:23:27 + --> $DIR/collapsible_str_replace.rs:24:27 | LL | let _ = "hesuo worpd".replace('s', "l").replace('u', "l").replace('p', "l"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `replace(['s', 'u', 'p'], "l")` error: used consecutive `str::replace` call - --> $DIR/collapsible_str_replace.rs:26:10 + --> $DIR/collapsible_str_replace.rs:27:10 | LL | .replace('s', "l") | __________^ @@ -29,58 +29,64 @@ LL | | .replace('d', "l"); | |__________________________^ help: replace with: `replace(['s', 'u', 'p', 'd'], "l")` error: used consecutive `str::replace` call - --> $DIR/collapsible_str_replace.rs:31:27 + --> $DIR/collapsible_str_replace.rs:32:27 | LL | let _ = "hesuo world".replace(s, "l").replace('u', "l"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `replace([s, 'u'], "l")` error: used consecutive `str::replace` call - --> $DIR/collapsible_str_replace.rs:33:27 + --> $DIR/collapsible_str_replace.rs:34:27 | LL | let _ = "hesuo worpd".replace(s, "l").replace('u', "l").replace('p', "l"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `replace([s, 'u', 'p'], "l")` error: used consecutive `str::replace` call - --> $DIR/collapsible_str_replace.rs:35:27 + --> $DIR/collapsible_str_replace.rs:36:27 | LL | let _ = "hesuo worpd".replace(s, "l").replace(u, "l").replace('p', "l"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `replace([s, u, 'p'], "l")` error: used consecutive `str::replace` call - --> $DIR/collapsible_str_replace.rs:37:27 + --> $DIR/collapsible_str_replace.rs:38:27 | LL | let _ = "hesuo worpd".replace(s, "l").replace(u, "l").replace(p, "l"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `replace([s, u, p], "l")` error: used consecutive `str::replace` call - --> $DIR/collapsible_str_replace.rs:39:27 + --> $DIR/collapsible_str_replace.rs:40:27 | LL | let _ = "hesuo worlp".replace('s', "l").replace('u', "l").replace('p', "d"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `replace(['s', 'u'], "l")` error: used consecutive `str::replace` call - --> $DIR/collapsible_str_replace.rs:41:45 + --> $DIR/collapsible_str_replace.rs:42:45 | LL | let _ = "hesuo worpd".replace('s', "x").replace('u', "l").replace('p', "l"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `replace(['u', 'p'], "l")` error: used consecutive `str::replace` call - --> $DIR/collapsible_str_replace.rs:44:47 + --> $DIR/collapsible_str_replace.rs:45:47 | LL | let _ = "hesudo worpd".replace("su", "l").replace('d', "l").replace('p', "l"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `replace(['d', 'p'], "l")` error: used consecutive `str::replace` call - --> $DIR/collapsible_str_replace.rs:46:28 + --> $DIR/collapsible_str_replace.rs:47:28 | LL | let _ = "hesudo worpd".replace(d, "l").replace('p', "l").replace("su", "l"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `replace([d, 'p'], "l")` error: used consecutive `str::replace` call - --> $DIR/collapsible_str_replace.rs:48:27 + --> $DIR/collapsible_str_replace.rs:49:27 | LL | let _ = "hesuo world".replace(get_filter(), "l").replace('s', "l"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `replace([get_filter(), 's'], "l")` -error: aborting due to 13 previous errors +error: used consecutive `str::replace` call + --> $DIR/collapsible_str_replace.rs:86:16 + | +LL | let _ = "".replace('a', "1.58").replace('b', "1.58"); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `replace(['a', 'b'], "1.58")` + +error: aborting due to 14 previous errors diff --git a/src/tools/clippy/tests/ui/explicit_counter_loop.rs b/src/tools/clippy/tests/ui/explicit_counter_loop.rs index 6eddc01e2c4..46565a97f00 100644 --- a/src/tools/clippy/tests/ui/explicit_counter_loop.rs +++ b/src/tools/clippy/tests/ui/explicit_counter_loop.rs @@ -189,3 +189,33 @@ mod issue_7920 { } } } + +mod issue_10058 { + pub fn test() { + // should not lint since we are increasing counter potentially more than once in the loop + let values = [0, 1, 0, 1, 1, 1, 0, 1, 0, 1]; + let mut counter = 0; + for value in values { + counter += 1; + + if value == 0 { + continue; + } + + counter += 1; + } + } + + pub fn test2() { + // should not lint since we are increasing counter potentially more than once in the loop + let values = [0, 1, 0, 1, 1, 1, 0, 1, 0, 1]; + let mut counter = 0; + for value in values { + counter += 1; + + if value != 0 { + counter += 1; + } + } + } +} diff --git a/src/tools/clippy/tests/ui/from_over_into.fixed b/src/tools/clippy/tests/ui/from_over_into.fixed index 125c9a69cd3..72d635c2ccd 100644 --- a/src/tools/clippy/tests/ui/from_over_into.fixed +++ b/src/tools/clippy/tests/ui/from_over_into.fixed @@ -1,5 +1,6 @@ // run-rustfix +#![feature(type_alias_impl_trait)] #![warn(clippy::from_over_into)] #![allow(unused)] @@ -81,4 +82,10 @@ fn msrv_1_41() { } } +type Opaque = impl Sized; +struct IntoOpaque; +impl Into<Opaque> for IntoOpaque { + fn into(self) -> Opaque {} +} + fn main() {} diff --git a/src/tools/clippy/tests/ui/from_over_into.rs b/src/tools/clippy/tests/ui/from_over_into.rs index 5aa127bfabe..965f4d5d785 100644 --- a/src/tools/clippy/tests/ui/from_over_into.rs +++ b/src/tools/clippy/tests/ui/from_over_into.rs @@ -1,5 +1,6 @@ // run-rustfix +#![feature(type_alias_impl_trait)] #![warn(clippy::from_over_into)] #![allow(unused)] @@ -81,4 +82,10 @@ fn msrv_1_41() { } } +type Opaque = impl Sized; +struct IntoOpaque; +impl Into<Opaque> for IntoOpaque { + fn into(self) -> Opaque {} +} + fn main() {} diff --git a/src/tools/clippy/tests/ui/from_over_into.stderr b/src/tools/clippy/tests/ui/from_over_into.stderr index a1764a5ea12..3c4d011d6fb 100644 --- a/src/tools/clippy/tests/ui/from_over_into.stderr +++ b/src/tools/clippy/tests/ui/from_over_into.stderr @@ -1,5 +1,5 @@ error: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true - --> $DIR/from_over_into.rs:9:1 + --> $DIR/from_over_into.rs:10:1 | LL | impl Into<StringWrapper> for String { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -13,7 +13,7 @@ LL ~ StringWrapper(val) | error: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true - --> $DIR/from_over_into.rs:17:1 + --> $DIR/from_over_into.rs:18:1 | LL | impl Into<SelfType> for String { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -26,7 +26,7 @@ LL ~ SelfType(String::new()) | error: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true - --> $DIR/from_over_into.rs:32:1 + --> $DIR/from_over_into.rs:33:1 | LL | impl Into<SelfKeywords> for X { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -41,7 +41,7 @@ LL ~ let _: X = val; | error: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true - --> $DIR/from_over_into.rs:44:1 + --> $DIR/from_over_into.rs:45:1 | LL | impl core::convert::Into<bool> for crate::ExplicitPaths { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -59,7 +59,7 @@ LL ~ val.0 | error: an implementation of `From` is preferred since it gives you `Into<_>` for free where the reverse isn't true - --> $DIR/from_over_into.rs:77:5 + --> $DIR/from_over_into.rs:78:5 | LL | impl<T> Into<FromOverInto<T>> for Vec<T> { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/src/tools/clippy/tests/ui/identity_op.fixed b/src/tools/clippy/tests/ui/identity_op.fixed index e7b9a78c5db..cac69ef42c4 100644 --- a/src/tools/clippy/tests/ui/identity_op.fixed +++ b/src/tools/clippy/tests/ui/identity_op.fixed @@ -65,7 +65,7 @@ fn main() { 42; 1; 42; - &x; + x; x; let mut a = A(String::new()); @@ -112,6 +112,10 @@ fn main() { 2 * { a }; (({ a } + 4)); 1; + + // Issue #9904 + let x = 0i32; + let _: i32 = x; } pub fn decide(a: bool, b: bool) -> u32 { diff --git a/src/tools/clippy/tests/ui/identity_op.rs b/src/tools/clippy/tests/ui/identity_op.rs index 9a435cdbb75..33201aad4f6 100644 --- a/src/tools/clippy/tests/ui/identity_op.rs +++ b/src/tools/clippy/tests/ui/identity_op.rs @@ -112,6 +112,10 @@ fn main() { 2 * (0 + { a }); 1 * ({ a } + 4); 1 * 1; + + // Issue #9904 + let x = 0i32; + let _: i32 = &x + 0; } pub fn decide(a: bool, b: bool) -> u32 { diff --git a/src/tools/clippy/tests/ui/identity_op.stderr b/src/tools/clippy/tests/ui/identity_op.stderr index 1a104a20b84..3ba557d18b2 100644 --- a/src/tools/clippy/tests/ui/identity_op.stderr +++ b/src/tools/clippy/tests/ui/identity_op.stderr @@ -70,7 +70,7 @@ error: this operation has no effect --> $DIR/identity_op.rs:68:5 | LL | &x >> 0; - | ^^^^^^^ help: consider reducing it to: `&x` + | ^^^^^^^ help: consider reducing it to: `x` error: this operation has no effect --> $DIR/identity_op.rs:69:5 @@ -229,10 +229,16 @@ LL | 1 * 1; | ^^^^^ help: consider reducing it to: `1` error: this operation has no effect - --> $DIR/identity_op.rs:118:5 + --> $DIR/identity_op.rs:118:18 + | +LL | let _: i32 = &x + 0; + | ^^^^^^ help: consider reducing it to: `x` + +error: this operation has no effect + --> $DIR/identity_op.rs:122:5 | LL | 0 + if a { 1 } else { 2 } + if b { 3 } else { 5 } | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider reducing it to: `(if a { 1 } else { 2 })` -error: aborting due to 39 previous errors +error: aborting due to 40 previous errors diff --git a/src/tools/clippy/tests/ui/implicit_clone.fixed b/src/tools/clippy/tests/ui/implicit_clone.fixed index 33770fc2a2c..51b1afbe5ac 100644 --- a/src/tools/clippy/tests/ui/implicit_clone.fixed +++ b/src/tools/clippy/tests/ui/implicit_clone.fixed @@ -115,4 +115,14 @@ fn main() { let pathbuf_ref = &pathbuf_ref; let _ = pathbuf_ref.to_owned(); // Don't lint. Returns `&&PathBuf` let _ = (**pathbuf_ref).clone(); + + struct NoClone; + impl ToOwned for NoClone { + type Owned = Self; + fn to_owned(&self) -> Self { + NoClone + } + } + let no_clone = &NoClone; + let _ = no_clone.to_owned(); } diff --git a/src/tools/clippy/tests/ui/implicit_clone.rs b/src/tools/clippy/tests/ui/implicit_clone.rs index fc896525bd2..8a9027433d9 100644 --- a/src/tools/clippy/tests/ui/implicit_clone.rs +++ b/src/tools/clippy/tests/ui/implicit_clone.rs @@ -115,4 +115,14 @@ fn main() { let pathbuf_ref = &pathbuf_ref; let _ = pathbuf_ref.to_owned(); // Don't lint. Returns `&&PathBuf` let _ = pathbuf_ref.to_path_buf(); + + struct NoClone; + impl ToOwned for NoClone { + type Owned = Self; + fn to_owned(&self) -> Self { + NoClone + } + } + let no_clone = &NoClone; + let _ = no_clone.to_owned(); } diff --git a/src/tools/clippy/tests/ui/indexing_slicing_index.rs b/src/tools/clippy/tests/ui/indexing_slicing_index.rs index 4476e0eb922..26abc9edb5e 100644 --- a/src/tools/clippy/tests/ui/indexing_slicing_index.rs +++ b/src/tools/clippy/tests/ui/indexing_slicing_index.rs @@ -6,7 +6,7 @@ #![allow(unconditional_panic, clippy::no_effect, clippy::unnecessary_operation)] const ARR: [i32; 2] = [1, 2]; -const REF: &i32 = &ARR[idx()]; // Ok, should not produce stderr. +const REF: &i32 = &ARR[idx()]; // This should be linted, since `suppress-restriction-lint-in-const` default is false. const REF_ERR: &i32 = &ARR[idx4()]; // Ok, let rustc handle const contexts. const fn idx() -> usize { @@ -27,8 +27,8 @@ fn main() { x[3]; // Ok, should not produce stderr. x[const { idx() }]; // Ok, should not produce stderr. x[const { idx4() }]; // Ok, let rustc's `unconditional_panic` lint handle `usize` indexing on arrays. - const { &ARR[idx()] }; // Ok, should not produce stderr. - const { &ARR[idx4()] }; // Ok, let rustc handle const contexts. + const { &ARR[idx()] }; // This should be linted, since `suppress-restriction-lint-in-const` default is false. + const { &ARR[idx4()] }; // This should be linted, since `suppress-restriction-lint-in-const` default is false. let y = &x; y[0]; // Ok, referencing shouldn't affect this lint. See the issue 6021 diff --git a/src/tools/clippy/tests/ui/indexing_slicing_index.stderr b/src/tools/clippy/tests/ui/indexing_slicing_index.stderr index d8b6e3f1262..8fd77913a3f 100644 --- a/src/tools/clippy/tests/ui/indexing_slicing_index.stderr +++ b/src/tools/clippy/tests/ui/indexing_slicing_index.stderr @@ -1,13 +1,32 @@ +error: indexing may panic + --> $DIR/indexing_slicing_index.rs:9:20 + | +LL | const REF: &i32 = &ARR[idx()]; // This should be linted, since `suppress-restriction-lint-in-const` default is false. + | ^^^^^^^^^^ + | + = help: consider using `.get(n)` or `.get_mut(n)` instead + = note: the suggestion might not be applicable in constant blocks + = note: `-D clippy::indexing-slicing` implied by `-D warnings` + +error: indexing may panic + --> $DIR/indexing_slicing_index.rs:10:24 + | +LL | const REF_ERR: &i32 = &ARR[idx4()]; // Ok, let rustc handle const contexts. + | ^^^^^^^^^^^ + | + = help: consider using `.get(n)` or `.get_mut(n)` instead + = note: the suggestion might not be applicable in constant blocks + error[E0080]: evaluation of `main::{constant#3}` failed --> $DIR/indexing_slicing_index.rs:31:14 | -LL | const { &ARR[idx4()] }; // Ok, let rustc handle const contexts. +LL | const { &ARR[idx4()] }; // This should be linted, since `suppress-restriction-lint-in-const` default is false. | ^^^^^^^^^^^ index out of bounds: the length is 2 but the index is 4 note: erroneous constant used --> $DIR/indexing_slicing_index.rs:31:5 | -LL | const { &ARR[idx4()] }; // Ok, let rustc handle const contexts. +LL | const { &ARR[idx4()] }; // This should be linted, since `suppress-restriction-lint-in-const` default is false. | ^^^^^^^^^^^^^^^^^^^^^^ error: indexing may panic @@ -17,7 +36,24 @@ LL | x[index]; | ^^^^^^^^ | = help: consider using `.get(n)` or `.get_mut(n)` instead - = note: `-D clippy::indexing-slicing` implied by `-D warnings` + +error: indexing may panic + --> $DIR/indexing_slicing_index.rs:30:14 + | +LL | const { &ARR[idx()] }; // This should be linted, since `suppress-restriction-lint-in-const` default is false. + | ^^^^^^^^^^ + | + = help: consider using `.get(n)` or `.get_mut(n)` instead + = note: the suggestion might not be applicable in constant blocks + +error: indexing may panic + --> $DIR/indexing_slicing_index.rs:31:14 + | +LL | const { &ARR[idx4()] }; // This should be linted, since `suppress-restriction-lint-in-const` default is false. + | ^^^^^^^^^^^ + | + = help: consider using `.get(n)` or `.get_mut(n)` instead + = note: the suggestion might not be applicable in constant blocks error: indexing may panic --> $DIR/indexing_slicing_index.rs:38:5 @@ -65,6 +101,6 @@ error[E0080]: evaluation of constant value failed LL | const REF_ERR: &i32 = &ARR[idx4()]; // Ok, let rustc handle const contexts. | ^^^^^^^^^^^ index out of bounds: the length is 2 but the index is 4 -error: aborting due to 8 previous errors +error: aborting due to 12 previous errors For more information about this error, try `rustc --explain E0080`. diff --git a/src/tools/clippy/tests/ui/len_zero.fixed b/src/tools/clippy/tests/ui/len_zero.fixed index 1f3b8ac99b1..c1c0b5ae40f 100644 --- a/src/tools/clippy/tests/ui/len_zero.fixed +++ b/src/tools/clippy/tests/ui/len_zero.fixed @@ -3,6 +3,9 @@ #![warn(clippy::len_zero)] #![allow(dead_code, unused, clippy::len_without_is_empty)] +extern crate core; +use core::ops::Deref; + pub struct One; struct Wither; @@ -56,6 +59,26 @@ impl WithIsEmpty for Wither { } } +struct DerefToDerefToString; + +impl Deref for DerefToDerefToString { + type Target = DerefToString; + + fn deref(&self) -> &Self::Target { + &DerefToString {} + } +} + +struct DerefToString; + +impl Deref for DerefToString { + type Target = str; + + fn deref(&self) -> &Self::Target { + "Hello, world!" + } +} + fn main() { let x = [1, 2]; if x.is_empty() { @@ -64,6 +87,23 @@ fn main() { if "".is_empty() {} + let s = "Hello, world!"; + let s1 = &s; + let s2 = &s1; + let s3 = &s2; + let s4 = &s3; + let s5 = &s4; + let s6 = &s5; + println!("{}", s1.is_empty()); + println!("{}", s2.is_empty()); + println!("{}", s3.is_empty()); + println!("{}", s4.is_empty()); + println!("{}", s5.is_empty()); + println!("{}", (s6).is_empty()); + + let d2s = DerefToDerefToString {}; + println!("{}", (**d2s).is_empty()); + let y = One; if y.len() == 0 { // No error; `One` does not have `.is_empty()`. diff --git a/src/tools/clippy/tests/ui/len_zero.rs b/src/tools/clippy/tests/ui/len_zero.rs index dc21de0001b..cc2eb05b6bf 100644 --- a/src/tools/clippy/tests/ui/len_zero.rs +++ b/src/tools/clippy/tests/ui/len_zero.rs @@ -3,6 +3,9 @@ #![warn(clippy::len_zero)] #![allow(dead_code, unused, clippy::len_without_is_empty)] +extern crate core; +use core::ops::Deref; + pub struct One; struct Wither; @@ -56,6 +59,26 @@ impl WithIsEmpty for Wither { } } +struct DerefToDerefToString; + +impl Deref for DerefToDerefToString { + type Target = DerefToString; + + fn deref(&self) -> &Self::Target { + &DerefToString {} + } +} + +struct DerefToString; + +impl Deref for DerefToString { + type Target = str; + + fn deref(&self) -> &Self::Target { + "Hello, world!" + } +} + fn main() { let x = [1, 2]; if x.len() == 0 { @@ -64,6 +87,23 @@ fn main() { if "".len() == 0 {} + let s = "Hello, world!"; + let s1 = &s; + let s2 = &s1; + let s3 = &s2; + let s4 = &s3; + let s5 = &s4; + let s6 = &s5; + println!("{}", *s1 == ""); + println!("{}", **s2 == ""); + println!("{}", ***s3 == ""); + println!("{}", ****s4 == ""); + println!("{}", *****s5 == ""); + println!("{}", ******(s6) == ""); + + let d2s = DerefToDerefToString {}; + println!("{}", &**d2s == ""); + let y = One; if y.len() == 0 { // No error; `One` does not have `.is_empty()`. diff --git a/src/tools/clippy/tests/ui/len_zero.stderr b/src/tools/clippy/tests/ui/len_zero.stderr index 6c71f1beeac..b6f13780253 100644 --- a/src/tools/clippy/tests/ui/len_zero.stderr +++ b/src/tools/clippy/tests/ui/len_zero.stderr @@ -1,5 +1,5 @@ error: length comparison to zero - --> $DIR/len_zero.rs:61:8 + --> $DIR/len_zero.rs:84:8 | LL | if x.len() == 0 { | ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `x.is_empty()` @@ -7,82 +7,126 @@ LL | if x.len() == 0 { = note: `-D clippy::len-zero` implied by `-D warnings` error: length comparison to zero - --> $DIR/len_zero.rs:65:8 + --> $DIR/len_zero.rs:88:8 | LL | if "".len() == 0 {} | ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `"".is_empty()` +error: comparison to empty slice + --> $DIR/len_zero.rs:97:20 + | +LL | println!("{}", *s1 == ""); + | ^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `s1.is_empty()` + | + = note: `-D clippy::comparison-to-empty` implied by `-D warnings` + +error: comparison to empty slice + --> $DIR/len_zero.rs:98:20 + | +LL | println!("{}", **s2 == ""); + | ^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `s2.is_empty()` + +error: comparison to empty slice + --> $DIR/len_zero.rs:99:20 + | +LL | println!("{}", ***s3 == ""); + | ^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `s3.is_empty()` + +error: comparison to empty slice + --> $DIR/len_zero.rs:100:20 + | +LL | println!("{}", ****s4 == ""); + | ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `s4.is_empty()` + +error: comparison to empty slice + --> $DIR/len_zero.rs:101:20 + | +LL | println!("{}", *****s5 == ""); + | ^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `s5.is_empty()` + +error: comparison to empty slice + --> $DIR/len_zero.rs:102:20 + | +LL | println!("{}", ******(s6) == ""); + | ^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `(s6).is_empty()` + +error: comparison to empty slice + --> $DIR/len_zero.rs:105:20 + | +LL | println!("{}", &**d2s == ""); + | ^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `(**d2s).is_empty()` + error: length comparison to zero - --> $DIR/len_zero.rs:80:8 + --> $DIR/len_zero.rs:120:8 | LL | if has_is_empty.len() == 0 { | ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `has_is_empty.is_empty()` error: length comparison to zero - --> $DIR/len_zero.rs:83:8 + --> $DIR/len_zero.rs:123:8 | LL | if has_is_empty.len() != 0 { | ^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!has_is_empty.is_empty()` error: length comparison to zero - --> $DIR/len_zero.rs:86:8 + --> $DIR/len_zero.rs:126:8 | LL | if has_is_empty.len() > 0 { | ^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!has_is_empty.is_empty()` error: length comparison to one - --> $DIR/len_zero.rs:89:8 + --> $DIR/len_zero.rs:129:8 | LL | if has_is_empty.len() < 1 { | ^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `has_is_empty.is_empty()` error: length comparison to one - --> $DIR/len_zero.rs:92:8 + --> $DIR/len_zero.rs:132:8 | LL | if has_is_empty.len() >= 1 { | ^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!has_is_empty.is_empty()` error: length comparison to zero - --> $DIR/len_zero.rs:103:8 + --> $DIR/len_zero.rs:143:8 | LL | if 0 == has_is_empty.len() { | ^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `has_is_empty.is_empty()` error: length comparison to zero - --> $DIR/len_zero.rs:106:8 + --> $DIR/len_zero.rs:146:8 | LL | if 0 != has_is_empty.len() { | ^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!has_is_empty.is_empty()` error: length comparison to zero - --> $DIR/len_zero.rs:109:8 + --> $DIR/len_zero.rs:149:8 | LL | if 0 < has_is_empty.len() { | ^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!has_is_empty.is_empty()` error: length comparison to one - --> $DIR/len_zero.rs:112:8 + --> $DIR/len_zero.rs:152:8 | LL | if 1 <= has_is_empty.len() { | ^^^^^^^^^^^^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!has_is_empty.is_empty()` error: length comparison to one - --> $DIR/len_zero.rs:115:8 + --> $DIR/len_zero.rs:155:8 | LL | if 1 > has_is_empty.len() { | ^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `has_is_empty.is_empty()` error: length comparison to zero - --> $DIR/len_zero.rs:129:8 + --> $DIR/len_zero.rs:169:8 | LL | if with_is_empty.len() == 0 { | ^^^^^^^^^^^^^^^^^^^^^^^^ help: using `is_empty` is clearer and more explicit: `with_is_empty.is_empty()` error: length comparison to zero - --> $DIR/len_zero.rs:142:8 + --> $DIR/len_zero.rs:182:8 | LL | if b.len() != 0 {} | ^^^^^^^^^^^^ help: using `!is_empty` is clearer and more explicit: `!b.is_empty()` -error: aborting due to 14 previous errors +error: aborting due to 21 previous errors diff --git a/src/tools/clippy/tests/ui/manual_assert.edition2018.fixed b/src/tools/clippy/tests/ui/manual_assert.edition2018.fixed index c9a819ba535..638320dd6ee 100644 --- a/src/tools/clippy/tests/ui/manual_assert.edition2018.fixed +++ b/src/tools/clippy/tests/ui/manual_assert.edition2018.fixed @@ -62,6 +62,11 @@ fn main() { panic!("panic5"); } assert!(!a.is_empty(), "with expansion {}", one!()); + if a.is_empty() { + let _ = 0; + } else if a.len() == 1 { + panic!("panic6"); + } } fn issue7730(a: u8) { diff --git a/src/tools/clippy/tests/ui/manual_assert.edition2021.fixed b/src/tools/clippy/tests/ui/manual_assert.edition2021.fixed index 2f62de51cad..8c7e919bf62 100644 --- a/src/tools/clippy/tests/ui/manual_assert.edition2021.fixed +++ b/src/tools/clippy/tests/ui/manual_assert.edition2021.fixed @@ -50,6 +50,11 @@ fn main() { assert!(!(b.is_empty() || a.is_empty()), "panic4"); assert!(!(a.is_empty() || !b.is_empty()), "panic5"); assert!(!a.is_empty(), "with expansion {}", one!()); + if a.is_empty() { + let _ = 0; + } else if a.len() == 1 { + panic!("panic6"); + } } fn issue7730(a: u8) { diff --git a/src/tools/clippy/tests/ui/manual_assert.edition2021.stderr b/src/tools/clippy/tests/ui/manual_assert.edition2021.stderr index 237638ee134..3555ac29243 100644 --- a/src/tools/clippy/tests/ui/manual_assert.edition2021.stderr +++ b/src/tools/clippy/tests/ui/manual_assert.edition2021.stderr @@ -65,7 +65,7 @@ LL | | } | |_____^ help: try instead: `assert!(!a.is_empty(), "with expansion {}", one!());` error: only a `panic!` in `if`-then statement - --> $DIR/manual_assert.rs:73:5 + --> $DIR/manual_assert.rs:78:5 | LL | / if a > 2 { LL | | // comment diff --git a/src/tools/clippy/tests/ui/manual_assert.rs b/src/tools/clippy/tests/ui/manual_assert.rs index 6a4cc2468d4..f037c5b8405 100644 --- a/src/tools/clippy/tests/ui/manual_assert.rs +++ b/src/tools/clippy/tests/ui/manual_assert.rs @@ -66,6 +66,11 @@ fn main() { if a.is_empty() { panic!("with expansion {}", one!()) } + if a.is_empty() { + let _ = 0; + } else if a.len() == 1 { + panic!("panic6"); + } } fn issue7730(a: u8) { diff --git a/src/tools/clippy/tests/ui/manual_is_ascii_check.fixed b/src/tools/clippy/tests/ui/manual_is_ascii_check.fixed index 231ba83b142..5b2b44c2fdb 100644 --- a/src/tools/clippy/tests/ui/manual_is_ascii_check.fixed +++ b/src/tools/clippy/tests/ui/manual_is_ascii_check.fixed @@ -15,6 +15,19 @@ fn main() { assert!('x'.is_ascii_alphabetic()); assert!(matches!('x', 'A'..='Z' | 'a'..='z' | '_')); + + b'0'.is_ascii_digit(); + b'a'.is_ascii_lowercase(); + b'A'.is_ascii_uppercase(); + + '0'.is_ascii_digit(); + 'a'.is_ascii_lowercase(); + 'A'.is_ascii_uppercase(); + + let cool_letter = &'g'; + cool_letter.is_ascii_digit(); + cool_letter.is_ascii_lowercase(); + cool_letter.is_ascii_uppercase(); } #[clippy::msrv = "1.23"] diff --git a/src/tools/clippy/tests/ui/manual_is_ascii_check.rs b/src/tools/clippy/tests/ui/manual_is_ascii_check.rs index 39ee6151c56..c9433f33a1b 100644 --- a/src/tools/clippy/tests/ui/manual_is_ascii_check.rs +++ b/src/tools/clippy/tests/ui/manual_is_ascii_check.rs @@ -15,6 +15,19 @@ fn main() { assert!(matches!('x', 'A'..='Z' | 'a'..='z')); assert!(matches!('x', 'A'..='Z' | 'a'..='z' | '_')); + + (b'0'..=b'9').contains(&b'0'); + (b'a'..=b'z').contains(&b'a'); + (b'A'..=b'Z').contains(&b'A'); + + ('0'..='9').contains(&'0'); + ('a'..='z').contains(&'a'); + ('A'..='Z').contains(&'A'); + + let cool_letter = &'g'; + ('0'..='9').contains(cool_letter); + ('a'..='z').contains(cool_letter); + ('A'..='Z').contains(cool_letter); } #[clippy::msrv = "1.23"] diff --git a/src/tools/clippy/tests/ui/manual_is_ascii_check.stderr b/src/tools/clippy/tests/ui/manual_is_ascii_check.stderr index 397cbe05c82..ee60188506d 100644 --- a/src/tools/clippy/tests/ui/manual_is_ascii_check.stderr +++ b/src/tools/clippy/tests/ui/manual_is_ascii_check.stderr @@ -43,28 +43,82 @@ LL | assert!(matches!('x', 'A'..='Z' | 'a'..='z')); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `'x'.is_ascii_alphabetic()` error: manual check for common ascii range - --> $DIR/manual_is_ascii_check.rs:29:13 + --> $DIR/manual_is_ascii_check.rs:19:5 + | +LL | (b'0'..=b'9').contains(&b'0'); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `b'0'.is_ascii_digit()` + +error: manual check for common ascii range + --> $DIR/manual_is_ascii_check.rs:20:5 + | +LL | (b'a'..=b'z').contains(&b'a'); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `b'a'.is_ascii_lowercase()` + +error: manual check for common ascii range + --> $DIR/manual_is_ascii_check.rs:21:5 + | +LL | (b'A'..=b'Z').contains(&b'A'); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `b'A'.is_ascii_uppercase()` + +error: manual check for common ascii range + --> $DIR/manual_is_ascii_check.rs:23:5 + | +LL | ('0'..='9').contains(&'0'); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `'0'.is_ascii_digit()` + +error: manual check for common ascii range + --> $DIR/manual_is_ascii_check.rs:24:5 + | +LL | ('a'..='z').contains(&'a'); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `'a'.is_ascii_lowercase()` + +error: manual check for common ascii range + --> $DIR/manual_is_ascii_check.rs:25:5 + | +LL | ('A'..='Z').contains(&'A'); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `'A'.is_ascii_uppercase()` + +error: manual check for common ascii range + --> $DIR/manual_is_ascii_check.rs:28:5 + | +LL | ('0'..='9').contains(cool_letter); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `cool_letter.is_ascii_digit()` + +error: manual check for common ascii range + --> $DIR/manual_is_ascii_check.rs:29:5 + | +LL | ('a'..='z').contains(cool_letter); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `cool_letter.is_ascii_lowercase()` + +error: manual check for common ascii range + --> $DIR/manual_is_ascii_check.rs:30:5 + | +LL | ('A'..='Z').contains(cool_letter); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `cool_letter.is_ascii_uppercase()` + +error: manual check for common ascii range + --> $DIR/manual_is_ascii_check.rs:42:13 | LL | assert!(matches!(b'1', b'0'..=b'9')); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `b'1'.is_ascii_digit()` error: manual check for common ascii range - --> $DIR/manual_is_ascii_check.rs:30:13 + --> $DIR/manual_is_ascii_check.rs:43:13 | LL | assert!(matches!('X', 'A'..='Z')); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `'X'.is_ascii_uppercase()` error: manual check for common ascii range - --> $DIR/manual_is_ascii_check.rs:31:13 + --> $DIR/manual_is_ascii_check.rs:44:13 | LL | assert!(matches!('x', 'A'..='Z' | 'a'..='z')); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `'x'.is_ascii_alphabetic()` error: manual check for common ascii range - --> $DIR/manual_is_ascii_check.rs:41:23 + --> $DIR/manual_is_ascii_check.rs:54:23 | LL | const FOO: bool = matches!('x', '0'..='9'); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `'x'.is_ascii_digit()` -error: aborting due to 11 previous errors +error: aborting due to 20 previous errors diff --git a/src/tools/clippy/tests/ui/manual_let_else_match.rs b/src/tools/clippy/tests/ui/manual_let_else_match.rs index 93c86ca24fe..28caed9d79d 100644 --- a/src/tools/clippy/tests/ui/manual_let_else_match.rs +++ b/src/tools/clippy/tests/ui/manual_let_else_match.rs @@ -64,6 +64,13 @@ fn fire() { Ok(v) => v, Err(()) => return, }; + + let f = Variant::Bar(1); + + let _value = match f { + Variant::Bar(_) | Variant::Baz(_) => (), + _ => return, + }; } fn not_fire() { diff --git a/src/tools/clippy/tests/ui/manual_let_else_match.stderr b/src/tools/clippy/tests/ui/manual_let_else_match.stderr index 38be5ac5454..cd5e9a9ac39 100644 --- a/src/tools/clippy/tests/ui/manual_let_else_match.stderr +++ b/src/tools/clippy/tests/ui/manual_let_else_match.stderr @@ -25,7 +25,7 @@ LL | / let v = match h() { LL | | (Some(_), Some(_)) | (None, None) => continue, LL | | (Some(v), None) | (None, Some(v)) => v, LL | | }; - | |__________^ help: consider writing: `let (Some(v), None) | (None, Some(v)) = h() else { continue };` + | |__________^ help: consider writing: `let ((Some(v), None) | (None, Some(v))) = h() else { continue };` error: this could be rewritten as `let...else` --> $DIR/manual_let_else_match.rs:49:9 @@ -34,7 +34,7 @@ LL | / let v = match build_enum() { LL | | _ => continue, LL | | Variant::Bar(v) | Variant::Baz(v) => v, LL | | }; - | |__________^ help: consider writing: `let Variant::Bar(v) | Variant::Baz(v) = build_enum() else { continue };` + | |__________^ help: consider writing: `let (Variant::Bar(v) | Variant::Baz(v)) = build_enum() else { continue };` error: this could be rewritten as `let...else` --> $DIR/manual_let_else_match.rs:57:5 @@ -54,5 +54,14 @@ LL | | Err(()) => return, LL | | }; | |______^ help: consider writing: `let Ok(v) = f().map_err(|_| ()) else { return };` -error: aborting due to 6 previous errors +error: this could be rewritten as `let...else` + --> $DIR/manual_let_else_match.rs:70:5 + | +LL | / let _value = match f { +LL | | Variant::Bar(_) | Variant::Baz(_) => (), +LL | | _ => return, +LL | | }; + | |______^ help: consider writing: `let (Variant::Bar(_) | Variant::Baz(_)) = f else { return };` + +error: aborting due to 7 previous errors diff --git a/src/tools/clippy/tests/ui/needless_parens_on_range_literals.fixed b/src/tools/clippy/tests/ui/needless_parens_on_range_literals.fixed index 1bd75c806bc..f11330a8916 100644 --- a/src/tools/clippy/tests/ui/needless_parens_on_range_literals.fixed +++ b/src/tools/clippy/tests/ui/needless_parens_on_range_literals.fixed @@ -2,7 +2,7 @@ // edition:2018 #![warn(clippy::needless_parens_on_range_literals)] -#![allow(clippy::almost_complete_letter_range)] +#![allow(clippy::almost_complete_range)] fn main() { let _ = 'a'..='z'; diff --git a/src/tools/clippy/tests/ui/needless_parens_on_range_literals.rs b/src/tools/clippy/tests/ui/needless_parens_on_range_literals.rs index 7abb8a1adc1..671c0009e23 100644 --- a/src/tools/clippy/tests/ui/needless_parens_on_range_literals.rs +++ b/src/tools/clippy/tests/ui/needless_parens_on_range_literals.rs @@ -2,7 +2,7 @@ // edition:2018 #![warn(clippy::needless_parens_on_range_literals)] -#![allow(clippy::almost_complete_letter_range)] +#![allow(clippy::almost_complete_range)] fn main() { let _ = ('a')..=('z'); diff --git a/src/tools/clippy/tests/ui/new_ret_no_self.rs b/src/tools/clippy/tests/ui/new_ret_no_self.rs index f69982d63a8..beec42f08bb 100644 --- a/src/tools/clippy/tests/ui/new_ret_no_self.rs +++ b/src/tools/clippy/tests/ui/new_ret_no_self.rs @@ -1,3 +1,4 @@ +#![feature(type_alias_impl_trait)] #![warn(clippy::new_ret_no_self)] #![allow(dead_code)] @@ -400,3 +401,25 @@ mod issue7344 { } } } + +mod issue10041 { + struct Bomb; + + impl Bomb { + // Hidden <Rhs = Self> default generic paramter. + pub fn new() -> impl PartialOrd { + 0i32 + } + } + + // TAIT with self-referencing bounds + type X = impl std::ops::Add<Output = X>; + + struct Bomb2; + + impl Bomb2 { + pub fn new() -> X { + 0i32 + } + } +} diff --git a/src/tools/clippy/tests/ui/new_ret_no_self.stderr b/src/tools/clippy/tests/ui/new_ret_no_self.stderr index bc13be47927..2eaebfb5cac 100644 --- a/src/tools/clippy/tests/ui/new_ret_no_self.stderr +++ b/src/tools/clippy/tests/ui/new_ret_no_self.stderr @@ -1,5 +1,5 @@ error: methods called `new` usually return `Self` - --> $DIR/new_ret_no_self.rs:49:5 + --> $DIR/new_ret_no_self.rs:50:5 | LL | / pub fn new(_: String) -> impl R<Item = u32> { LL | | S3 @@ -9,7 +9,7 @@ LL | | } = note: `-D clippy::new-ret-no-self` implied by `-D warnings` error: methods called `new` usually return `Self` - --> $DIR/new_ret_no_self.rs:81:5 + --> $DIR/new_ret_no_self.rs:82:5 | LL | / pub fn new() -> u32 { LL | | unimplemented!(); @@ -17,7 +17,7 @@ LL | | } | |_____^ error: methods called `new` usually return `Self` - --> $DIR/new_ret_no_self.rs:90:5 + --> $DIR/new_ret_no_self.rs:91:5 | LL | / pub fn new(_: String) -> u32 { LL | | unimplemented!(); @@ -25,7 +25,7 @@ LL | | } | |_____^ error: methods called `new` usually return `Self` - --> $DIR/new_ret_no_self.rs:126:5 + --> $DIR/new_ret_no_self.rs:127:5 | LL | / pub fn new() -> (u32, u32) { LL | | unimplemented!(); @@ -33,7 +33,7 @@ LL | | } | |_____^ error: methods called `new` usually return `Self` - --> $DIR/new_ret_no_self.rs:153:5 + --> $DIR/new_ret_no_self.rs:154:5 | LL | / pub fn new() -> *mut V { LL | | unimplemented!(); @@ -41,7 +41,7 @@ LL | | } | |_____^ error: methods called `new` usually return `Self` - --> $DIR/new_ret_no_self.rs:171:5 + --> $DIR/new_ret_no_self.rs:172:5 | LL | / pub fn new() -> Option<u32> { LL | | unimplemented!(); @@ -49,19 +49,19 @@ LL | | } | |_____^ error: methods called `new` usually return `Self` - --> $DIR/new_ret_no_self.rs:224:9 + --> $DIR/new_ret_no_self.rs:225:9 | LL | fn new() -> String; | ^^^^^^^^^^^^^^^^^^^ error: methods called `new` usually return `Self` - --> $DIR/new_ret_no_self.rs:236:9 + --> $DIR/new_ret_no_self.rs:237:9 | LL | fn new(_: String) -> String; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: methods called `new` usually return `Self` - --> $DIR/new_ret_no_self.rs:271:9 + --> $DIR/new_ret_no_self.rs:272:9 | LL | / fn new() -> (u32, u32) { LL | | unimplemented!(); @@ -69,7 +69,7 @@ LL | | } | |_________^ error: methods called `new` usually return `Self` - --> $DIR/new_ret_no_self.rs:298:9 + --> $DIR/new_ret_no_self.rs:299:9 | LL | / fn new() -> *mut V { LL | | unimplemented!(); @@ -77,7 +77,7 @@ LL | | } | |_________^ error: methods called `new` usually return `Self` - --> $DIR/new_ret_no_self.rs:368:9 + --> $DIR/new_ret_no_self.rs:369:9 | LL | / fn new(t: T) -> impl Into<i32> { LL | | 1 @@ -85,12 +85,28 @@ LL | | } | |_________^ error: methods called `new` usually return `Self` - --> $DIR/new_ret_no_self.rs:389:9 + --> $DIR/new_ret_no_self.rs:390:9 | LL | / fn new(t: T) -> impl Trait2<(), i32> { LL | | unimplemented!() LL | | } | |_________^ -error: aborting due to 12 previous errors +error: methods called `new` usually return `Self` + --> $DIR/new_ret_no_self.rs:410:9 + | +LL | / pub fn new() -> impl PartialOrd { +LL | | 0i32 +LL | | } + | |_________^ + +error: methods called `new` usually return `Self` + --> $DIR/new_ret_no_self.rs:421:9 + | +LL | / pub fn new() -> X { +LL | | 0i32 +LL | | } + | |_________^ + +error: aborting due to 14 previous errors diff --git a/src/tools/clippy/tests/ui/redundant_static_lifetimes.fixed b/src/tools/clippy/tests/ui/redundant_static_lifetimes.fixed index 4c5846fe837..bca777a890c 100644 --- a/src/tools/clippy/tests/ui/redundant_static_lifetimes.fixed +++ b/src/tools/clippy/tests/ui/redundant_static_lifetimes.fixed @@ -39,8 +39,14 @@ static STATIC_VAR_TUPLE: &(u8, u8) = &(1, 2); // ERROR Consider removing 'static static STATIC_VAR_ARRAY: &[u8; 1] = b"T"; // ERROR Consider removing 'static. +static mut STATIC_MUT_SLICE: &mut [u32] = &mut [0]; + fn main() { let false_positive: &'static str = "test"; + + unsafe { + STATIC_MUT_SLICE[0] = 0; + } } trait Bar { diff --git a/src/tools/clippy/tests/ui/redundant_static_lifetimes.rs b/src/tools/clippy/tests/ui/redundant_static_lifetimes.rs index 64a66be1a83..afe7644816d 100644 --- a/src/tools/clippy/tests/ui/redundant_static_lifetimes.rs +++ b/src/tools/clippy/tests/ui/redundant_static_lifetimes.rs @@ -39,8 +39,14 @@ static STATIC_VAR_TUPLE: &'static (u8, u8) = &(1, 2); // ERROR Consider removing static STATIC_VAR_ARRAY: &'static [u8; 1] = b"T"; // ERROR Consider removing 'static. +static mut STATIC_MUT_SLICE: &'static mut [u32] = &mut [0]; + fn main() { let false_positive: &'static str = "test"; + + unsafe { + STATIC_MUT_SLICE[0] = 0; + } } trait Bar { diff --git a/src/tools/clippy/tests/ui/redundant_static_lifetimes.stderr b/src/tools/clippy/tests/ui/redundant_static_lifetimes.stderr index 0938ebf783f..b2cbd2d9d01 100644 --- a/src/tools/clippy/tests/ui/redundant_static_lifetimes.stderr +++ b/src/tools/clippy/tests/ui/redundant_static_lifetimes.stderr @@ -97,10 +97,16 @@ LL | static STATIC_VAR_ARRAY: &'static [u8; 1] = b"T"; // ERROR Consider removin | -^^^^^^^-------- help: consider removing `'static`: `&[u8; 1]` error: statics have by default a `'static` lifetime - --> $DIR/redundant_static_lifetimes.rs:65:16 + --> $DIR/redundant_static_lifetimes.rs:42:31 + | +LL | static mut STATIC_MUT_SLICE: &'static mut [u32] = &mut [0]; + | -^^^^^^^---------- help: consider removing `'static`: `&mut [u32]` + +error: statics have by default a `'static` lifetime + --> $DIR/redundant_static_lifetimes.rs:71:16 | LL | static V: &'static u8 = &17; | -^^^^^^^--- help: consider removing `'static`: `&u8` -error: aborting due to 17 previous errors +error: aborting due to 18 previous errors diff --git a/src/tools/clippy/tests/ui/rename.fixed b/src/tools/clippy/tests/ui/rename.fixed index 689928f0479..2f76b575296 100644 --- a/src/tools/clippy/tests/ui/rename.fixed +++ b/src/tools/clippy/tests/ui/rename.fixed @@ -4,6 +4,7 @@ // run-rustfix +#![allow(clippy::almost_complete_range)] #![allow(clippy::disallowed_names)] #![allow(clippy::blocks_in_if_conditions)] #![allow(clippy::box_collection)] @@ -37,6 +38,7 @@ #![allow(temporary_cstring_as_ptr)] #![allow(unknown_lints)] #![allow(unused_labels)] +#![warn(clippy::almost_complete_range)] #![warn(clippy::disallowed_names)] #![warn(clippy::blocks_in_if_conditions)] #![warn(clippy::blocks_in_if_conditions)] diff --git a/src/tools/clippy/tests/ui/rename.rs b/src/tools/clippy/tests/ui/rename.rs index b74aa650ffd..699c0ff464e 100644 --- a/src/tools/clippy/tests/ui/rename.rs +++ b/src/tools/clippy/tests/ui/rename.rs @@ -4,6 +4,7 @@ // run-rustfix +#![allow(clippy::almost_complete_range)] #![allow(clippy::disallowed_names)] #![allow(clippy::blocks_in_if_conditions)] #![allow(clippy::box_collection)] @@ -37,6 +38,7 @@ #![allow(temporary_cstring_as_ptr)] #![allow(unknown_lints)] #![allow(unused_labels)] +#![warn(clippy::almost_complete_letter_range)] #![warn(clippy::blacklisted_name)] #![warn(clippy::block_in_if_condition_expr)] #![warn(clippy::block_in_if_condition_stmt)] diff --git a/src/tools/clippy/tests/ui/rename.stderr b/src/tools/clippy/tests/ui/rename.stderr index 622a32c5908..9af58dc75a6 100644 --- a/src/tools/clippy/tests/ui/rename.stderr +++ b/src/tools/clippy/tests/ui/rename.stderr @@ -1,244 +1,250 @@ +error: lint `clippy::almost_complete_letter_range` has been renamed to `clippy::almost_complete_range` + --> $DIR/rename.rs:41:9 + | +LL | #![warn(clippy::almost_complete_letter_range)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::almost_complete_range` + | + = note: `-D renamed-and-removed-lints` implied by `-D warnings` + error: lint `clippy::blacklisted_name` has been renamed to `clippy::disallowed_names` - --> $DIR/rename.rs:40:9 + --> $DIR/rename.rs:42:9 | LL | #![warn(clippy::blacklisted_name)] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::disallowed_names` - | - = note: `-D renamed-and-removed-lints` implied by `-D warnings` error: lint `clippy::block_in_if_condition_expr` has been renamed to `clippy::blocks_in_if_conditions` - --> $DIR/rename.rs:41:9 + --> $DIR/rename.rs:43:9 | LL | #![warn(clippy::block_in_if_condition_expr)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::blocks_in_if_conditions` error: lint `clippy::block_in_if_condition_stmt` has been renamed to `clippy::blocks_in_if_conditions` - --> $DIR/rename.rs:42:9 + --> $DIR/rename.rs:44:9 | LL | #![warn(clippy::block_in_if_condition_stmt)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::blocks_in_if_conditions` error: lint `clippy::box_vec` has been renamed to `clippy::box_collection` - --> $DIR/rename.rs:43:9 + --> $DIR/rename.rs:45:9 | LL | #![warn(clippy::box_vec)] | ^^^^^^^^^^^^^^^ help: use the new name: `clippy::box_collection` error: lint `clippy::const_static_lifetime` has been renamed to `clippy::redundant_static_lifetimes` - --> $DIR/rename.rs:44:9 + --> $DIR/rename.rs:46:9 | LL | #![warn(clippy::const_static_lifetime)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::redundant_static_lifetimes` error: lint `clippy::cyclomatic_complexity` has been renamed to `clippy::cognitive_complexity` - --> $DIR/rename.rs:45:9 + --> $DIR/rename.rs:47:9 | LL | #![warn(clippy::cyclomatic_complexity)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::cognitive_complexity` error: lint `clippy::disallowed_method` has been renamed to `clippy::disallowed_methods` - --> $DIR/rename.rs:46:9 + --> $DIR/rename.rs:48:9 | LL | #![warn(clippy::disallowed_method)] | ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::disallowed_methods` error: lint `clippy::disallowed_type` has been renamed to `clippy::disallowed_types` - --> $DIR/rename.rs:47:9 + --> $DIR/rename.rs:49:9 | LL | #![warn(clippy::disallowed_type)] | ^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::disallowed_types` error: lint `clippy::eval_order_dependence` has been renamed to `clippy::mixed_read_write_in_expression` - --> $DIR/rename.rs:48:9 + --> $DIR/rename.rs:50:9 | LL | #![warn(clippy::eval_order_dependence)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::mixed_read_write_in_expression` error: lint `clippy::identity_conversion` has been renamed to `clippy::useless_conversion` - --> $DIR/rename.rs:49:9 + --> $DIR/rename.rs:51:9 | LL | #![warn(clippy::identity_conversion)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::useless_conversion` error: lint `clippy::if_let_some_result` has been renamed to `clippy::match_result_ok` - --> $DIR/rename.rs:50:9 + --> $DIR/rename.rs:52:9 | LL | #![warn(clippy::if_let_some_result)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::match_result_ok` error: lint `clippy::logic_bug` has been renamed to `clippy::overly_complex_bool_expr` - --> $DIR/rename.rs:51:9 + --> $DIR/rename.rs:53:9 | LL | #![warn(clippy::logic_bug)] | ^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::overly_complex_bool_expr` error: lint `clippy::new_without_default_derive` has been renamed to `clippy::new_without_default` - --> $DIR/rename.rs:52:9 + --> $DIR/rename.rs:54:9 | LL | #![warn(clippy::new_without_default_derive)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::new_without_default` error: lint `clippy::option_and_then_some` has been renamed to `clippy::bind_instead_of_map` - --> $DIR/rename.rs:53:9 + --> $DIR/rename.rs:55:9 | LL | #![warn(clippy::option_and_then_some)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::bind_instead_of_map` error: lint `clippy::option_expect_used` has been renamed to `clippy::expect_used` - --> $DIR/rename.rs:54:9 + --> $DIR/rename.rs:56:9 | LL | #![warn(clippy::option_expect_used)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::expect_used` error: lint `clippy::option_map_unwrap_or` has been renamed to `clippy::map_unwrap_or` - --> $DIR/rename.rs:55:9 + --> $DIR/rename.rs:57:9 | LL | #![warn(clippy::option_map_unwrap_or)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::map_unwrap_or` error: lint `clippy::option_map_unwrap_or_else` has been renamed to `clippy::map_unwrap_or` - --> $DIR/rename.rs:56:9 + --> $DIR/rename.rs:58:9 | LL | #![warn(clippy::option_map_unwrap_or_else)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::map_unwrap_or` error: lint `clippy::option_unwrap_used` has been renamed to `clippy::unwrap_used` - --> $DIR/rename.rs:57:9 + --> $DIR/rename.rs:59:9 | LL | #![warn(clippy::option_unwrap_used)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::unwrap_used` error: lint `clippy::ref_in_deref` has been renamed to `clippy::needless_borrow` - --> $DIR/rename.rs:58:9 + --> $DIR/rename.rs:60:9 | LL | #![warn(clippy::ref_in_deref)] | ^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::needless_borrow` error: lint `clippy::result_expect_used` has been renamed to `clippy::expect_used` - --> $DIR/rename.rs:59:9 + --> $DIR/rename.rs:61:9 | LL | #![warn(clippy::result_expect_used)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::expect_used` error: lint `clippy::result_map_unwrap_or_else` has been renamed to `clippy::map_unwrap_or` - --> $DIR/rename.rs:60:9 + --> $DIR/rename.rs:62:9 | LL | #![warn(clippy::result_map_unwrap_or_else)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::map_unwrap_or` error: lint `clippy::result_unwrap_used` has been renamed to `clippy::unwrap_used` - --> $DIR/rename.rs:61:9 + --> $DIR/rename.rs:63:9 | LL | #![warn(clippy::result_unwrap_used)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::unwrap_used` error: lint `clippy::single_char_push_str` has been renamed to `clippy::single_char_add_str` - --> $DIR/rename.rs:62:9 + --> $DIR/rename.rs:64:9 | LL | #![warn(clippy::single_char_push_str)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::single_char_add_str` error: lint `clippy::stutter` has been renamed to `clippy::module_name_repetitions` - --> $DIR/rename.rs:63:9 + --> $DIR/rename.rs:65:9 | LL | #![warn(clippy::stutter)] | ^^^^^^^^^^^^^^^ help: use the new name: `clippy::module_name_repetitions` error: lint `clippy::to_string_in_display` has been renamed to `clippy::recursive_format_impl` - --> $DIR/rename.rs:64:9 + --> $DIR/rename.rs:66:9 | LL | #![warn(clippy::to_string_in_display)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::recursive_format_impl` error: lint `clippy::zero_width_space` has been renamed to `clippy::invisible_characters` - --> $DIR/rename.rs:65:9 + --> $DIR/rename.rs:67:9 | LL | #![warn(clippy::zero_width_space)] | ^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `clippy::invisible_characters` error: lint `clippy::drop_bounds` has been renamed to `drop_bounds` - --> $DIR/rename.rs:66:9 + --> $DIR/rename.rs:68:9 | LL | #![warn(clippy::drop_bounds)] | ^^^^^^^^^^^^^^^^^^^ help: use the new name: `drop_bounds` error: lint `clippy::for_loop_over_option` has been renamed to `for_loops_over_fallibles` - --> $DIR/rename.rs:67:9 + --> $DIR/rename.rs:69:9 | LL | #![warn(clippy::for_loop_over_option)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `for_loops_over_fallibles` error: lint `clippy::for_loop_over_result` has been renamed to `for_loops_over_fallibles` - --> $DIR/rename.rs:68:9 + --> $DIR/rename.rs:70:9 | LL | #![warn(clippy::for_loop_over_result)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `for_loops_over_fallibles` error: lint `clippy::for_loops_over_fallibles` has been renamed to `for_loops_over_fallibles` - --> $DIR/rename.rs:69:9 + --> $DIR/rename.rs:71:9 | LL | #![warn(clippy::for_loops_over_fallibles)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `for_loops_over_fallibles` error: lint `clippy::into_iter_on_array` has been renamed to `array_into_iter` - --> $DIR/rename.rs:70:9 + --> $DIR/rename.rs:72:9 | LL | #![warn(clippy::into_iter_on_array)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `array_into_iter` error: lint `clippy::invalid_atomic_ordering` has been renamed to `invalid_atomic_ordering` - --> $DIR/rename.rs:71:9 + --> $DIR/rename.rs:73:9 | LL | #![warn(clippy::invalid_atomic_ordering)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `invalid_atomic_ordering` error: lint `clippy::invalid_ref` has been renamed to `invalid_value` - --> $DIR/rename.rs:72:9 + --> $DIR/rename.rs:74:9 | LL | #![warn(clippy::invalid_ref)] | ^^^^^^^^^^^^^^^^^^^ help: use the new name: `invalid_value` error: lint `clippy::let_underscore_drop` has been renamed to `let_underscore_drop` - --> $DIR/rename.rs:73:9 + --> $DIR/rename.rs:75:9 | LL | #![warn(clippy::let_underscore_drop)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `let_underscore_drop` error: lint `clippy::mem_discriminant_non_enum` has been renamed to `enum_intrinsics_non_enums` - --> $DIR/rename.rs:74:9 + --> $DIR/rename.rs:76:9 | LL | #![warn(clippy::mem_discriminant_non_enum)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `enum_intrinsics_non_enums` error: lint `clippy::panic_params` has been renamed to `non_fmt_panics` - --> $DIR/rename.rs:75:9 + --> $DIR/rename.rs:77:9 | LL | #![warn(clippy::panic_params)] | ^^^^^^^^^^^^^^^^^^^^ help: use the new name: `non_fmt_panics` error: lint `clippy::positional_named_format_parameters` has been renamed to `named_arguments_used_positionally` - --> $DIR/rename.rs:76:9 + --> $DIR/rename.rs:78:9 | LL | #![warn(clippy::positional_named_format_parameters)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `named_arguments_used_positionally` error: lint `clippy::temporary_cstring_as_ptr` has been renamed to `temporary_cstring_as_ptr` - --> $DIR/rename.rs:77:9 + --> $DIR/rename.rs:79:9 | LL | #![warn(clippy::temporary_cstring_as_ptr)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `temporary_cstring_as_ptr` error: lint `clippy::unknown_clippy_lints` has been renamed to `unknown_lints` - --> $DIR/rename.rs:78:9 + --> $DIR/rename.rs:80:9 | LL | #![warn(clippy::unknown_clippy_lints)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use the new name: `unknown_lints` error: lint `clippy::unused_label` has been renamed to `unused_labels` - --> $DIR/rename.rs:79:9 + --> $DIR/rename.rs:81:9 | LL | #![warn(clippy::unused_label)] | ^^^^^^^^^^^^^^^^^^^^ help: use the new name: `unused_labels` -error: aborting due to 40 previous errors +error: aborting due to 41 previous errors diff --git a/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.fixed b/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.fixed index 9d0d1124c46..713cff604a1 100644 --- a/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.fixed +++ b/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.fixed @@ -70,6 +70,12 @@ fn seek_to_end<T: Seek>(t: &mut T) { t.seek(SeekFrom::End(0)); } +// This should NOT trigger clippy warning because +// expr is used here +fn seek_to_start_in_let<T: Seek>(t: &mut T) { + let a = t.seek(SeekFrom::Start(0)).unwrap(); +} + fn main() { let mut f = OpenOptions::new() .write(true) diff --git a/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.rs b/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.rs index c5bc57cc3a7..467003a1a66 100644 --- a/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.rs +++ b/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.rs @@ -70,6 +70,12 @@ fn seek_to_end<T: Seek>(t: &mut T) { t.seek(SeekFrom::End(0)); } +// This should NOT trigger clippy warning because +// expr is used here +fn seek_to_start_in_let<T: Seek>(t: &mut T) { + let a = t.seek(SeekFrom::Start(0)).unwrap(); +} + fn main() { let mut f = OpenOptions::new() .write(true) diff --git a/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.stderr b/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.stderr index 6cce025359f..342ec00fe72 100644 --- a/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.stderr +++ b/src/tools/clippy/tests/ui/seek_to_start_instead_of_rewind.stderr @@ -13,7 +13,7 @@ LL | t.seek(SeekFrom::Start(0)); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `rewind()` error: used `seek` to go to the start of the stream - --> $DIR/seek_to_start_instead_of_rewind.rs:128:7 + --> $DIR/seek_to_start_instead_of_rewind.rs:134:7 | LL | f.seek(SeekFrom::Start(0)); | ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace with: `rewind()` diff --git a/src/tools/clippy/tests/ui/semicolon_inside_block.fixed b/src/tools/clippy/tests/ui/semicolon_inside_block.fixed new file mode 100644 index 00000000000..42e97e1ca35 --- /dev/null +++ b/src/tools/clippy/tests/ui/semicolon_inside_block.fixed @@ -0,0 +1,85 @@ +// run-rustfix +#![allow( + unused, + clippy::unused_unit, + clippy::unnecessary_operation, + clippy::no_effect, + clippy::single_element_loop +)] +#![warn(clippy::semicolon_inside_block)] + +macro_rules! m { + (()) => { + () + }; + (0) => {{ + 0 + };}; + (1) => {{ + 1; + }}; + (2) => {{ + 2; + }}; +} + +fn unit_fn_block() { + () +} + +#[rustfmt::skip] +fn main() { + { unit_fn_block() } + unsafe { unit_fn_block() } + + { + unit_fn_block() + } + + { unit_fn_block(); } + unsafe { unit_fn_block(); } + + { unit_fn_block(); } + unsafe { unit_fn_block(); } + + { unit_fn_block(); }; + unsafe { unit_fn_block(); }; + + { + unit_fn_block(); + unit_fn_block(); + } + { + unit_fn_block(); + unit_fn_block(); + } + { + unit_fn_block(); + unit_fn_block(); + }; + + { m!(()); } + { m!(()); } + { m!(()); }; + m!(0); + m!(1); + m!(2); + + for _ in [()] { + unit_fn_block(); + } + for _ in [()] { + unit_fn_block() + } + + let _d = || { + unit_fn_block(); + }; + let _d = || { + unit_fn_block() + }; + + { unit_fn_block(); }; + + unit_fn_block() +} diff --git a/src/tools/clippy/tests/ui/semicolon_inside_block.rs b/src/tools/clippy/tests/ui/semicolon_inside_block.rs new file mode 100644 index 00000000000..f40848f702e --- /dev/null +++ b/src/tools/clippy/tests/ui/semicolon_inside_block.rs @@ -0,0 +1,85 @@ +// run-rustfix +#![allow( + unused, + clippy::unused_unit, + clippy::unnecessary_operation, + clippy::no_effect, + clippy::single_element_loop +)] +#![warn(clippy::semicolon_inside_block)] + +macro_rules! m { + (()) => { + () + }; + (0) => {{ + 0 + };}; + (1) => {{ + 1; + }}; + (2) => {{ + 2; + }}; +} + +fn unit_fn_block() { + () +} + +#[rustfmt::skip] +fn main() { + { unit_fn_block() } + unsafe { unit_fn_block() } + + { + unit_fn_block() + } + + { unit_fn_block() }; + unsafe { unit_fn_block() }; + + { unit_fn_block(); } + unsafe { unit_fn_block(); } + + { unit_fn_block(); }; + unsafe { unit_fn_block(); }; + + { + unit_fn_block(); + unit_fn_block() + }; + { + unit_fn_block(); + unit_fn_block(); + } + { + unit_fn_block(); + unit_fn_block(); + }; + + { m!(()) }; + { m!(()); } + { m!(()); }; + m!(0); + m!(1); + m!(2); + + for _ in [()] { + unit_fn_block(); + } + for _ in [()] { + unit_fn_block() + } + + let _d = || { + unit_fn_block(); + }; + let _d = || { + unit_fn_block() + }; + + { unit_fn_block(); }; + + unit_fn_block() +} diff --git a/src/tools/clippy/tests/ui/semicolon_inside_block.stderr b/src/tools/clippy/tests/ui/semicolon_inside_block.stderr new file mode 100644 index 00000000000..48d3690e2bd --- /dev/null +++ b/src/tools/clippy/tests/ui/semicolon_inside_block.stderr @@ -0,0 +1,54 @@ +error: consider moving the `;` inside the block for consistent formatting + --> $DIR/semicolon_inside_block.rs:39:5 + | +LL | { unit_fn_block() }; + | ^^^^^^^^^^^^^^^^^^^^ + | + = note: `-D clippy::semicolon-inside-block` implied by `-D warnings` +help: put the `;` here + | +LL - { unit_fn_block() }; +LL + { unit_fn_block(); } + | + +error: consider moving the `;` inside the block for consistent formatting + --> $DIR/semicolon_inside_block.rs:40:5 + | +LL | unsafe { unit_fn_block() }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | +help: put the `;` here + | +LL - unsafe { unit_fn_block() }; +LL + unsafe { unit_fn_block(); } + | + +error: consider moving the `;` inside the block for consistent formatting + --> $DIR/semicolon_inside_block.rs:48:5 + | +LL | / { +LL | | unit_fn_block(); +LL | | unit_fn_block() +LL | | }; + | |______^ + | +help: put the `;` here + | +LL ~ unit_fn_block(); +LL ~ } + | + +error: consider moving the `;` inside the block for consistent formatting + --> $DIR/semicolon_inside_block.rs:61:5 + | +LL | { m!(()) }; + | ^^^^^^^^^^^ + | +help: put the `;` here + | +LL - { m!(()) }; +LL + { m!(()); } + | + +error: aborting due to 4 previous errors + diff --git a/src/tools/clippy/tests/ui/semicolon_outside_block.fixed b/src/tools/clippy/tests/ui/semicolon_outside_block.fixed new file mode 100644 index 00000000000..091eaa7518e --- /dev/null +++ b/src/tools/clippy/tests/ui/semicolon_outside_block.fixed @@ -0,0 +1,85 @@ +// run-rustfix +#![allow( + unused, + clippy::unused_unit, + clippy::unnecessary_operation, + clippy::no_effect, + clippy::single_element_loop +)] +#![warn(clippy::semicolon_outside_block)] + +macro_rules! m { + (()) => { + () + }; + (0) => {{ + 0 + };}; + (1) => {{ + 1; + }}; + (2) => {{ + 2; + }}; +} + +fn unit_fn_block() { + () +} + +#[rustfmt::skip] +fn main() { + { unit_fn_block() } + unsafe { unit_fn_block() } + + { + unit_fn_block() + } + + { unit_fn_block() }; + unsafe { unit_fn_block() }; + + { unit_fn_block() }; + unsafe { unit_fn_block() }; + + { unit_fn_block(); }; + unsafe { unit_fn_block(); }; + + { + unit_fn_block(); + unit_fn_block() + }; + { + unit_fn_block(); + unit_fn_block() + }; + { + unit_fn_block(); + unit_fn_block(); + }; + + { m!(()) }; + { m!(()) }; + { m!(()); }; + m!(0); + m!(1); + m!(2); + + for _ in [()] { + unit_fn_block(); + } + for _ in [()] { + unit_fn_block() + } + + let _d = || { + unit_fn_block(); + }; + let _d = || { + unit_fn_block() + }; + + { unit_fn_block(); }; + + unit_fn_block() +} diff --git a/src/tools/clippy/tests/ui/semicolon_outside_block.rs b/src/tools/clippy/tests/ui/semicolon_outside_block.rs new file mode 100644 index 00000000000..7ce46431fac --- /dev/null +++ b/src/tools/clippy/tests/ui/semicolon_outside_block.rs @@ -0,0 +1,85 @@ +// run-rustfix +#![allow( + unused, + clippy::unused_unit, + clippy::unnecessary_operation, + clippy::no_effect, + clippy::single_element_loop +)] +#![warn(clippy::semicolon_outside_block)] + +macro_rules! m { + (()) => { + () + }; + (0) => {{ + 0 + };}; + (1) => {{ + 1; + }}; + (2) => {{ + 2; + }}; +} + +fn unit_fn_block() { + () +} + +#[rustfmt::skip] +fn main() { + { unit_fn_block() } + unsafe { unit_fn_block() } + + { + unit_fn_block() + } + + { unit_fn_block() }; + unsafe { unit_fn_block() }; + + { unit_fn_block(); } + unsafe { unit_fn_block(); } + + { unit_fn_block(); }; + unsafe { unit_fn_block(); }; + + { + unit_fn_block(); + unit_fn_block() + }; + { + unit_fn_block(); + unit_fn_block(); + } + { + unit_fn_block(); + unit_fn_block(); + }; + + { m!(()) }; + { m!(()); } + { m!(()); }; + m!(0); + m!(1); + m!(2); + + for _ in [()] { + unit_fn_block(); + } + for _ in [()] { + unit_fn_block() + } + + let _d = || { + unit_fn_block(); + }; + let _d = || { + unit_fn_block() + }; + + { unit_fn_block(); }; + + unit_fn_block() +} diff --git a/src/tools/clippy/tests/ui/semicolon_outside_block.stderr b/src/tools/clippy/tests/ui/semicolon_outside_block.stderr new file mode 100644 index 00000000000..dcc102e6099 --- /dev/null +++ b/src/tools/clippy/tests/ui/semicolon_outside_block.stderr @@ -0,0 +1,54 @@ +error: consider moving the `;` outside the block for consistent formatting + --> $DIR/semicolon_outside_block.rs:42:5 + | +LL | { unit_fn_block(); } + | ^^^^^^^^^^^^^^^^^^^^ + | + = note: `-D clippy::semicolon-outside-block` implied by `-D warnings` +help: put the `;` here + | +LL - { unit_fn_block(); } +LL + { unit_fn_block() }; + | + +error: consider moving the `;` outside the block for consistent formatting + --> $DIR/semicolon_outside_block.rs:43:5 + | +LL | unsafe { unit_fn_block(); } + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | +help: put the `;` here + | +LL - unsafe { unit_fn_block(); } +LL + unsafe { unit_fn_block() }; + | + +error: consider moving the `;` outside the block for consistent formatting + --> $DIR/semicolon_outside_block.rs:52:5 + | +LL | / { +LL | | unit_fn_block(); +LL | | unit_fn_block(); +LL | | } + | |_____^ + | +help: put the `;` here + | +LL ~ unit_fn_block() +LL ~ }; + | + +error: consider moving the `;` outside the block for consistent formatting + --> $DIR/semicolon_outside_block.rs:62:5 + | +LL | { m!(()); } + | ^^^^^^^^^^^ + | +help: put the `;` here + | +LL - { m!(()); } +LL + { m!(()) }; + | + +error: aborting due to 4 previous errors + diff --git a/src/tools/clippy/tests/ui/string_lit_as_bytes.fixed b/src/tools/clippy/tests/ui/string_lit_as_bytes.fixed index df2256e4f97..506187fc125 100644 --- a/src/tools/clippy/tests/ui/string_lit_as_bytes.fixed +++ b/src/tools/clippy/tests/ui/string_lit_as_bytes.fixed @@ -25,6 +25,12 @@ fn str_lit_as_bytes() { let includestr = include_bytes!("string_lit_as_bytes.rs"); let _ = b"string with newline\t\n"; + + let _ = match "x".as_bytes() { + b"xx" => 0, + [b'x', ..] => 1, + _ => 2, + }; } fn main() {} diff --git a/src/tools/clippy/tests/ui/string_lit_as_bytes.rs b/src/tools/clippy/tests/ui/string_lit_as_bytes.rs index c6bf8f732ed..2c339f1ddb8 100644 --- a/src/tools/clippy/tests/ui/string_lit_as_bytes.rs +++ b/src/tools/clippy/tests/ui/string_lit_as_bytes.rs @@ -25,6 +25,12 @@ fn str_lit_as_bytes() { let includestr = include_str!("string_lit_as_bytes.rs").as_bytes(); let _ = "string with newline\t\n".as_bytes(); + + let _ = match "x".as_bytes() { + b"xx" => 0, + [b'x', ..] => 1, + _ => 2, + }; } fn main() {} diff --git a/src/tools/clippy/tests/ui/uninlined_format_args_panic.edition2018.fixed b/src/tools/clippy/tests/ui/uninlined_format_args_panic.edition2018.fixed index 96cc0877960..52b5343c351 100644 --- a/src/tools/clippy/tests/ui/uninlined_format_args_panic.edition2018.fixed +++ b/src/tools/clippy/tests/ui/uninlined_format_args_panic.edition2018.fixed @@ -26,4 +26,7 @@ fn main() { panic!("p4 {var}"); } } + + assert!(var == 1, "p5 {}", var); + debug_assert!(var == 1, "p6 {}", var); } diff --git a/src/tools/clippy/tests/ui/uninlined_format_args_panic.edition2021.fixed b/src/tools/clippy/tests/ui/uninlined_format_args_panic.edition2021.fixed index faf8ca4d3a7..ee72065e28a 100644 --- a/src/tools/clippy/tests/ui/uninlined_format_args_panic.edition2021.fixed +++ b/src/tools/clippy/tests/ui/uninlined_format_args_panic.edition2021.fixed @@ -26,4 +26,7 @@ fn main() { panic!("p4 {var}"); } } + + assert!(var == 1, "p5 {var}"); + debug_assert!(var == 1, "p6 {var}"); } diff --git a/src/tools/clippy/tests/ui/uninlined_format_args_panic.edition2021.stderr b/src/tools/clippy/tests/ui/uninlined_format_args_panic.edition2021.stderr index 0f09c45f413..fc7b125080e 100644 --- a/src/tools/clippy/tests/ui/uninlined_format_args_panic.edition2021.stderr +++ b/src/tools/clippy/tests/ui/uninlined_format_args_panic.edition2021.stderr @@ -47,5 +47,29 @@ LL - panic!("p3 {var}", var = var); LL + panic!("p3 {var}"); | -error: aborting due to 4 previous errors +error: variables can be used directly in the `format!` string + --> $DIR/uninlined_format_args_panic.rs:30:5 + | +LL | assert!(var == 1, "p5 {}", var); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | +help: change this to + | +LL - assert!(var == 1, "p5 {}", var); +LL + assert!(var == 1, "p5 {var}"); + | + +error: variables can be used directly in the `format!` string + --> $DIR/uninlined_format_args_panic.rs:31:5 + | +LL | debug_assert!(var == 1, "p6 {}", var); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | +help: change this to + | +LL - debug_assert!(var == 1, "p6 {}", var); +LL + debug_assert!(var == 1, "p6 {var}"); + | + +error: aborting due to 6 previous errors diff --git a/src/tools/clippy/tests/ui/uninlined_format_args_panic.rs b/src/tools/clippy/tests/ui/uninlined_format_args_panic.rs index 6421c5bbed2..b4a0a0f496e 100644 --- a/src/tools/clippy/tests/ui/uninlined_format_args_panic.rs +++ b/src/tools/clippy/tests/ui/uninlined_format_args_panic.rs @@ -26,4 +26,7 @@ fn main() { panic!("p4 {var}"); } } + + assert!(var == 1, "p5 {}", var); + debug_assert!(var == 1, "p6 {}", var); } diff --git a/src/tools/clippy/tests/ui/unnecessary_to_owned.fixed b/src/tools/clippy/tests/ui/unnecessary_to_owned.fixed index ddeda795f81..345f6d604c4 100644 --- a/src/tools/clippy/tests/ui/unnecessary_to_owned.fixed +++ b/src/tools/clippy/tests/ui/unnecessary_to_owned.fixed @@ -454,3 +454,23 @@ mod issue_9771b { Key(v.to_vec()) } } + +// This is a watered down version of the code in: https://github.com/oxigraph/rio +// The ICE is triggered by the call to `to_owned` on this line: +// https://github.com/oxigraph/rio/blob/66635b9ff8e5423e58932353fa40d6e64e4820f7/testsuite/src/parser_evaluator.rs#L116 +mod issue_10021 { + #![allow(unused)] + + pub struct Iri<T>(T); + + impl<T: AsRef<str>> Iri<T> { + pub fn parse(iri: T) -> Result<Self, ()> { + unimplemented!() + } + } + + pub fn parse_w3c_rdf_test_file(url: &str) -> Result<(), ()> { + let base_iri = Iri::parse(url.to_owned())?; + Ok(()) + } +} diff --git a/src/tools/clippy/tests/ui/unnecessary_to_owned.rs b/src/tools/clippy/tests/ui/unnecessary_to_owned.rs index 95d2576733c..7eb53df39e5 100644 --- a/src/tools/clippy/tests/ui/unnecessary_to_owned.rs +++ b/src/tools/clippy/tests/ui/unnecessary_to_owned.rs @@ -454,3 +454,23 @@ mod issue_9771b { Key(v.to_vec()) } } + +// This is a watered down version of the code in: https://github.com/oxigraph/rio +// The ICE is triggered by the call to `to_owned` on this line: +// https://github.com/oxigraph/rio/blob/66635b9ff8e5423e58932353fa40d6e64e4820f7/testsuite/src/parser_evaluator.rs#L116 +mod issue_10021 { + #![allow(unused)] + + pub struct Iri<T>(T); + + impl<T: AsRef<str>> Iri<T> { + pub fn parse(iri: T) -> Result<Self, ()> { + unimplemented!() + } + } + + pub fn parse_w3c_rdf_test_file(url: &str) -> Result<(), ()> { + let base_iri = Iri::parse(url.to_owned())?; + Ok(()) + } +} diff --git a/src/tools/clippy/tests/ui/zero_ptr_no_std.fixed b/src/tools/clippy/tests/ui/zero_ptr_no_std.fixed new file mode 100644 index 00000000000..8906c776977 --- /dev/null +++ b/src/tools/clippy/tests/ui/zero_ptr_no_std.fixed @@ -0,0 +1,21 @@ +// run-rustfix + +#![feature(lang_items, start, libc)] +#![no_std] +#![deny(clippy::zero_ptr)] + +#[start] +fn main(_argc: isize, _argv: *const *const u8) -> isize { + let _ = core::ptr::null::<usize>(); + let _ = core::ptr::null_mut::<f64>(); + let _: *const u8 = core::ptr::null(); + 0 +} + +#[panic_handler] +fn panic(_info: &core::panic::PanicInfo) -> ! { + loop {} +} + +#[lang = "eh_personality"] +extern "C" fn eh_personality() {} diff --git a/src/tools/clippy/tests/ui/zero_ptr_no_std.rs b/src/tools/clippy/tests/ui/zero_ptr_no_std.rs new file mode 100644 index 00000000000..379c1b18d29 --- /dev/null +++ b/src/tools/clippy/tests/ui/zero_ptr_no_std.rs @@ -0,0 +1,21 @@ +// run-rustfix + +#![feature(lang_items, start, libc)] +#![no_std] +#![deny(clippy::zero_ptr)] + +#[start] +fn main(_argc: isize, _argv: *const *const u8) -> isize { + let _ = 0 as *const usize; + let _ = 0 as *mut f64; + let _: *const u8 = 0 as *const _; + 0 +} + +#[panic_handler] +fn panic(_info: &core::panic::PanicInfo) -> ! { + loop {} +} + +#[lang = "eh_personality"] +extern "C" fn eh_personality() {} diff --git a/src/tools/clippy/tests/ui/zero_ptr_no_std.stderr b/src/tools/clippy/tests/ui/zero_ptr_no_std.stderr new file mode 100644 index 00000000000..d92bb4a6528 --- /dev/null +++ b/src/tools/clippy/tests/ui/zero_ptr_no_std.stderr @@ -0,0 +1,26 @@ +error: `0 as *const _` detected + --> $DIR/zero_ptr_no_std.rs:9:13 + | +LL | let _ = 0 as *const usize; + | ^^^^^^^^^^^^^^^^^ help: try: `core::ptr::null::<usize>()` + | +note: the lint level is defined here + --> $DIR/zero_ptr_no_std.rs:5:9 + | +LL | #![deny(clippy::zero_ptr)] + | ^^^^^^^^^^^^^^^^ + +error: `0 as *mut _` detected + --> $DIR/zero_ptr_no_std.rs:10:13 + | +LL | let _ = 0 as *mut f64; + | ^^^^^^^^^^^^^ help: try: `core::ptr::null_mut::<f64>()` + +error: `0 as *const _` detected + --> $DIR/zero_ptr_no_std.rs:11:24 + | +LL | let _: *const u8 = 0 as *const _; + | ^^^^^^^^^^^^^ help: try: `core::ptr::null()` + +error: aborting due to 3 previous errors + diff --git a/src/tools/clippy/tests/versioncheck.rs b/src/tools/clippy/tests/versioncheck.rs index 7a85386a3df..c721e9969c9 100644 --- a/src/tools/clippy/tests/versioncheck.rs +++ b/src/tools/clippy/tests/versioncheck.rs @@ -2,7 +2,6 @@ #![warn(rust_2018_idioms, unused_lifetimes)] #![allow(clippy::single_match_else)] -use rustc_tools_util::VersionInfo; use std::fs; #[test] diff --git a/src/tools/clippy/triagebot.toml b/src/tools/clippy/triagebot.toml index acb476ee696..6f50ef932e1 100644 --- a/src/tools/clippy/triagebot.toml +++ b/src/tools/clippy/triagebot.toml @@ -1,7 +1,7 @@ [relabel] allow-unauthenticated = [ "A-*", "C-*", "E-*", "I-*", "L-*", "P-*", "S-*", "T-*", - "good-first-issue" + "good-first-issue", "beta-nominated" ] # Allows shortcuts like `@rustbot ready` diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs index 1542b1c17ad..72a43108dc4 100644 --- a/src/tools/compiletest/src/runtest.rs +++ b/src/tools/compiletest/src/runtest.rs @@ -1924,7 +1924,15 @@ impl<'test> TestCx<'test> { rustc.args(&["--json", "future-incompat"]); } rustc.arg("-Ccodegen-units=1"); + // Hide line numbers to reduce churn rustc.arg("-Zui-testing"); + // Hide libstd sources from ui tests to make sure we generate the stderr + // output that users will see. + // Without this, we may be producing good diagnostics in-tree but users + // will not see half the information. + rustc.arg("-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX"); + rustc.arg("-Ztranslate-remapped-path-to-local-path=no"); + rustc.arg("-Zdeduplicate-diagnostics=no"); // FIXME: use this for other modes too, for perf? rustc.arg("-Cstrip=debuginfo"); diff --git a/src/tools/miri/src/machine.rs b/src/tools/miri/src/machine.rs index e5b1eb2e487..ab629e4711b 100644 --- a/src/tools/miri/src/machine.rs +++ b/src/tools/miri/src/machine.rs @@ -22,8 +22,9 @@ use rustc_middle::{ }; use rustc_span::def_id::{CrateNum, DefId}; use rustc_span::Symbol; -use rustc_target::abi::Size; +use rustc_target::abi::{Size, Align}; use rustc_target::spec::abi::Abi; +use rustc_const_eval::const_eval::CheckAlignment; use crate::{ concurrency::{data_race, weak_memory}, @@ -752,8 +753,12 @@ impl<'mir, 'tcx> Machine<'mir, 'tcx> for MiriMachine<'mir, 'tcx> { const PANIC_ON_ALLOC_FAIL: bool = false; #[inline(always)] - fn enforce_alignment(ecx: &MiriInterpCx<'mir, 'tcx>) -> bool { - ecx.machine.check_alignment != AlignmentCheck::None + fn enforce_alignment(ecx: &MiriInterpCx<'mir, 'tcx>) -> CheckAlignment { + if ecx.machine.check_alignment == AlignmentCheck::None { + CheckAlignment::No + } else { + CheckAlignment::Error + } } #[inline(always)] @@ -761,6 +766,15 @@ impl<'mir, 'tcx> Machine<'mir, 'tcx> for MiriMachine<'mir, 'tcx> { ecx.machine.check_alignment == AlignmentCheck::Int } + fn alignment_check_failed( + _ecx: &InterpCx<'mir, 'tcx, Self>, + has: Align, + required: Align, + _check: CheckAlignment, + ) -> InterpResult<'tcx, ()> { + throw_ub!(AlignmentCheckFailed { has, required }) + } + #[inline(always)] fn enforce_validity(ecx: &MiriInterpCx<'mir, 'tcx>) -> bool { ecx.machine.validate diff --git a/src/tools/remote-test-server/src/main.rs b/src/tools/remote-test-server/src/main.rs index 8e7c39e72b6..c1450aedc31 100644 --- a/src/tools/remote-test-server/src/main.rs +++ b/src/tools/remote-test-server/src/main.rs @@ -46,6 +46,7 @@ const NUMBER_OF_RETRIES: usize = 5; struct Config { verbose: bool, sequential: bool, + batch: bool, bind: SocketAddr, } @@ -54,6 +55,7 @@ impl Config { Config { verbose: false, sequential: false, + batch: false, bind: if cfg!(target_os = "android") || cfg!(windows) { ([0, 0, 0, 0], 12345).into() } else { @@ -75,6 +77,7 @@ impl Config { } "--bind" => next_is_bind = true, "--sequential" => config.sequential = true, + "--batch" => config.batch = true, "--verbose" | "-v" => config.verbose = true, "--help" | "-h" => { show_help(); @@ -100,6 +103,7 @@ fn show_help() { OPTIONS: --bind <IP>:<PORT> Specify IP address and port to listen for requests, e.g. "0.0.0.0:12345" --sequential Run only one test at a time + --batch Send stdout and stderr in batch instead of streaming -v, --verbose Show status messages -h, --help Show this help screen "#, @@ -280,22 +284,30 @@ fn handle_run(socket: TcpStream, work: &Path, tmp: &Path, lock: &Mutex<()>, conf // Some tests assume RUST_TEST_TMPDIR exists cmd.env("RUST_TEST_TMPDIR", tmp.to_owned()); - // Spawn the child and ferry over stdout/stderr to the socket in a framed - // fashion (poor man's style) - let mut child = - t!(cmd.stdin(Stdio::null()).stdout(Stdio::piped()).stderr(Stdio::piped()).spawn()); - drop(lock); - let mut stdout = child.stdout.take().unwrap(); - let mut stderr = child.stderr.take().unwrap(); let socket = Arc::new(Mutex::new(reader.into_inner())); - let socket2 = socket.clone(); - let thread = thread::spawn(move || my_copy(&mut stdout, 0, &*socket2)); - my_copy(&mut stderr, 1, &*socket); - thread.join().unwrap(); - // Finally send over the exit status. - let status = t!(child.wait()); + let status = if config.batch { + let child = + t!(cmd.stdin(Stdio::null()).stdout(Stdio::piped()).stderr(Stdio::piped()).output()); + batch_copy(&child.stdout, 0, &*socket); + batch_copy(&child.stderr, 1, &*socket); + child.status + } else { + // Spawn the child and ferry over stdout/stderr to the socket in a framed + // fashion (poor man's style) + let mut child = + t!(cmd.stdin(Stdio::null()).stdout(Stdio::piped()).stderr(Stdio::piped()).spawn()); + drop(lock); + let mut stdout = child.stdout.take().unwrap(); + let mut stderr = child.stderr.take().unwrap(); + let socket2 = socket.clone(); + let thread = thread::spawn(move || my_copy(&mut stdout, 0, &*socket2)); + my_copy(&mut stderr, 1, &*socket); + thread.join().unwrap(); + t!(child.wait()) + }; + // Finally send over the exit status. let (which, code) = get_status_code(&status); t!(socket.lock().unwrap().write_all(&[ @@ -368,6 +380,17 @@ fn my_copy(src: &mut dyn Read, which: u8, dst: &Mutex<dyn Write>) { } } +fn batch_copy(buf: &[u8], which: u8, dst: &Mutex<dyn Write>) { + let n = buf.len(); + let mut dst = dst.lock().unwrap(); + t!(dst.write_all(&[which, (n >> 24) as u8, (n >> 16) as u8, (n >> 8) as u8, (n >> 0) as u8,])); + if n > 0 { + t!(dst.write_all(buf)); + // Marking buf finished + t!(dst.write_all(&[which, 0, 0, 0, 0,])); + } +} + fn read_u32(r: &mut dyn Read) -> u32 { let mut len = [0; 4]; t!(r.read_exact(&mut len)); diff --git a/src/tools/tidy/src/deps.rs b/src/tools/tidy/src/deps.rs index 7ee8c5d3bad..75454cbdc5f 100644 --- a/src/tools/tidy/src/deps.rs +++ b/src/tools/tidy/src/deps.rs @@ -57,6 +57,7 @@ const EXCEPTIONS_CRANELIFT: &[(&str, &str)] = &[ ("cranelift-codegen", "Apache-2.0 WITH LLVM-exception"), ("cranelift-codegen-meta", "Apache-2.0 WITH LLVM-exception"), ("cranelift-codegen-shared", "Apache-2.0 WITH LLVM-exception"), + ("cranelift-egraph", "Apache-2.0 WITH LLVM-exception"), ("cranelift-entity", "Apache-2.0 WITH LLVM-exception"), ("cranelift-frontend", "Apache-2.0 WITH LLVM-exception"), ("cranelift-isle", "Apache-2.0 WITH LLVM-exception"), @@ -67,6 +68,7 @@ const EXCEPTIONS_CRANELIFT: &[(&str, &str)] = &[ ("mach", "BSD-2-Clause"), ("regalloc2", "Apache-2.0 WITH LLVM-exception"), ("target-lexicon", "Apache-2.0 WITH LLVM-exception"), + ("wasmtime-jit-icache-coherence", "Apache-2.0 WITH LLVM-exception"), ]; const EXCEPTIONS_BOOTSTRAP: &[(&str, &str)] = &[ @@ -291,6 +293,7 @@ const PERMITTED_CRANELIFT_DEPENDENCIES: &[&str] = &[ "cranelift-codegen", "cranelift-codegen-meta", "cranelift-codegen-shared", + "cranelift-egraph", "cranelift-entity", "cranelift-frontend", "cranelift-isle", @@ -299,6 +302,7 @@ const PERMITTED_CRANELIFT_DEPENDENCIES: &[&str] = &[ "cranelift-native", "cranelift-object", "crc32fast", + "fallible-iterator", "fxhash", "getrandom", "gimli", @@ -315,9 +319,11 @@ const PERMITTED_CRANELIFT_DEPENDENCIES: &[&str] = &[ "region", "slice-group-by", "smallvec", + "stable_deref_trait", "target-lexicon", "version_check", "wasi", + "wasmtime-jit-icache-coherence", "winapi", "winapi-i686-pc-windows-gnu", "winapi-x86_64-pc-windows-gnu", diff --git a/src/tools/tidy/src/main.rs b/src/tools/tidy/src/main.rs index b0b11cafca5..6714c63ee62 100644 --- a/src/tools/tidy/src/main.rs +++ b/src/tools/tidy/src/main.rs @@ -35,15 +35,26 @@ fn main() { let bad = std::sync::Arc::new(AtomicBool::new(false)); + let drain_handles = |handles: &mut VecDeque<ScopedJoinHandle<'_, ()>>| { + // poll all threads for completion before awaiting the oldest one + for i in (0..handles.len()).rev() { + if handles[i].is_finished() { + handles.swap_remove_back(i).unwrap().join().unwrap(); + } + } + + while handles.len() >= concurrency.get() { + handles.pop_front().unwrap().join().unwrap(); + } + }; + scope(|s| { let mut handles: VecDeque<ScopedJoinHandle<'_, ()>> = VecDeque::with_capacity(concurrency.get()); macro_rules! check { ($p:ident $(, $args:expr)* ) => { - while handles.len() >= concurrency.get() { - handles.pop_front().unwrap().join().unwrap(); - } + drain_handles(&mut handles); let handle = s.spawn(|| { let mut flag = false; @@ -97,9 +108,8 @@ fn main() { check!(alphabetical, &library_path); let collected = { - while handles.len() >= concurrency.get() { - handles.pop_front().unwrap().join().unwrap(); - } + drain_handles(&mut handles); + let mut flag = false; let r = features::check(&src_path, &compiler_path, &library_path, &mut flag, verbose); if flag { diff --git a/src/tools/tidy/src/style.rs b/src/tools/tidy/src/style.rs index e3a094caf91..f91e38262f6 100644 --- a/src/tools/tidy/src/style.rs +++ b/src/tools/tidy/src/style.rs @@ -17,7 +17,7 @@ //! `// ignore-tidy-CHECK-NAME`. use crate::walk::{filter_dirs, walk}; -use regex::Regex; +use regex::{Regex, RegexSet}; use std::path::Path; /// Error code markdown is restricted to 80 columns because they can be @@ -225,6 +225,7 @@ pub fn check(path: &Path, bad: &mut bool) { .chain(PROBLEMATIC_CONSTS.iter().map(|v| format!("{:x}", v))) .chain(PROBLEMATIC_CONSTS.iter().map(|v| format!("{:X}", v))) .collect(); + let problematic_regex = RegexSet::new(problematic_consts_strings.as_slice()).unwrap(); walk(path, &mut skip, &mut |entry, contents| { let file = entry.path(); let filename = file.file_name().unwrap().to_string_lossy(); @@ -281,7 +282,27 @@ pub fn check(path: &Path, bad: &mut bool) { let mut trailing_new_lines = 0; let mut lines = 0; let mut last_safety_comment = false; + let is_test = file.components().any(|c| c.as_os_str() == "tests"); + // scanning the whole file for multiple needles at once is more efficient than + // executing lines times needles separate searches. + let any_problematic_line = problematic_regex.is_match(contents); for (i, line) in contents.split('\n').enumerate() { + if line.is_empty() { + if i == 0 { + leading_new_lines = true; + } + trailing_new_lines += 1; + continue; + } else { + trailing_new_lines = 0; + } + + let trimmed = line.trim(); + + if !trimmed.starts_with("//") { + lines += 1; + } + let mut err = |msg: &str| { tidy_error!(bad, "{}:{}: {}", file.display(), i + 1, msg); }; @@ -308,28 +329,29 @@ pub fn check(path: &Path, bad: &mut bool) { suppressible_tidy_err!(err, skip_cr, "CR character"); } if filename != "style.rs" { - if line.contains("TODO") { + if trimmed.contains("TODO") { err("TODO is deprecated; use FIXME") } - if line.contains("//") && line.contains(" XXX") { + if trimmed.contains("//") && trimmed.contains(" XXX") { err("XXX is deprecated; use FIXME") } - for s in problematic_consts_strings.iter() { - if line.contains(s) { - err("Don't use magic numbers that spell things (consider 0x12345678)"); + if any_problematic_line { + for s in problematic_consts_strings.iter() { + if trimmed.contains(s) { + err("Don't use magic numbers that spell things (consider 0x12345678)"); + } } } } - let is_test = || file.components().any(|c| c.as_os_str() == "tests"); // for now we just check libcore - if line.contains("unsafe {") && !line.trim().starts_with("//") && !last_safety_comment { - if file.components().any(|c| c.as_os_str() == "core") && !is_test() { + if trimmed.contains("unsafe {") && !trimmed.starts_with("//") && !last_safety_comment { + if file.components().any(|c| c.as_os_str() == "core") && !is_test { suppressible_tidy_err!(err, skip_undocumented_unsafe, "undocumented unsafe"); } } - if line.contains("// SAFETY:") { + if trimmed.contains("// SAFETY:") { last_safety_comment = true; - } else if line.trim().starts_with("//") || line.trim().is_empty() { + } else if trimmed.starts_with("//") || trimmed.is_empty() { // keep previous value } else { last_safety_comment = false; @@ -337,7 +359,8 @@ pub fn check(path: &Path, bad: &mut bool) { if (line.starts_with("// Copyright") || line.starts_with("# Copyright") || line.starts_with("Copyright")) - && (line.contains("Rust Developers") || line.contains("Rust Project Developers")) + && (trimmed.contains("Rust Developers") + || trimmed.contains("Rust Project Developers")) { suppressible_tidy_err!( err, @@ -351,18 +374,6 @@ pub fn check(path: &Path, bad: &mut bool) { if filename.ends_with(".cpp") && line.contains("llvm_unreachable") { err(LLVM_UNREACHABLE_INFO); } - if line.is_empty() { - if i == 0 { - leading_new_lines = true; - } - trailing_new_lines += 1; - } else { - trailing_new_lines = 0; - } - - if !line.trim().starts_with("//") { - lines += 1; - } } if leading_new_lines { let mut err = |_| { diff --git a/triagebot.toml b/triagebot.toml index 19e8334fc1a..46a3bab42a1 100644 --- a/triagebot.toml +++ b/triagebot.toml @@ -467,7 +467,6 @@ compiler-team-contributors = [ "@compiler-errors", "@eholk", "@jackh726", - "@fee1-dead", "@TaKO8Ki", "@Nilstrieb", ] |