diff options
541 files changed, 19079 insertions, 3976 deletions
diff --git a/RELEASES.md b/RELEASES.md index 1cc110e6607..a0f6b1203fc 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -1,3 +1,120 @@ +Version 1.74.0 (2023-11-16) +========================== + +<a id="1.74.0-Language"></a> + +Language +-------- + +- [Codify that `std::mem::Discriminant<T>` does not depend on any lifetimes in T](https://github.com/rust-lang/rust/pull/104299/) +- [Replace `private_in_public` lint with `private_interfaces` and `private_bounds` per RFC 2145.](https://github.com/rust-lang/rust/pull/113126/) + Read more in [RFC 2145](https://rust-lang.github.io/rfcs/2145-type-privacy.html). +- [Allow explicit `#[repr(Rust)]`](https://github.com/rust-lang/rust/pull/114201/) +- [closure field capturing: don't depend on alignment of packed fields](https://github.com/rust-lang/rust/pull/115315/) +- [Enable MIR-based drop-tracking for `async` blocks](https://github.com/rust-lang/rust/pull/107421/) +- [Stabilize `impl_trait_projections`](https://github.com/rust-lang/rust/pull/115659) + +<a id="1.74.0-Compiler"></a> + +Compiler +-------- + +- [stabilize combining +bundle and +whole-archive link modifiers](https://github.com/rust-lang/rust/pull/113301/) +- [Stabilize `PATH` option for `--print KIND=PATH`](https://github.com/rust-lang/rust/pull/114183/) +- [Enable ASAN/LSAN/TSAN for `*-apple-ios-macabi`](https://github.com/rust-lang/rust/pull/115644/) +- [Promote loongarch64-unknown-none* to Tier 2](https://github.com/rust-lang/rust/pull/115368/) +- [Add `i686-pc-windows-gnullvm` as a tier 3 target](https://github.com/rust-lang/rust/pull/115687/) + +<a id="1.74.0-Libraries"></a> + +Libraries +--------- + +- [Implement `From<OwnedFd/Handle>` for ChildStdin/out/err](https://github.com/rust-lang/rust/pull/98704/) +- [Implement `From<{&,&mut} [T; N]>` for `Vec<T>` where `T: Clone`](https://github.com/rust-lang/rust/pull/111278/) +- [impl Step for IP addresses](https://github.com/rust-lang/rust/pull/113748/) +- [Implement `From<[T; N]>` for `Rc<[T]>` and `Arc<[T]>`](https://github.com/rust-lang/rust/pull/114041/) +- [`impl TryFrom<char> for u16`](https://github.com/rust-lang/rust/pull/114065/) +- [Stabilize `io_error_other` feature](https://github.com/rust-lang/rust/pull/115453/) +- [Stabilize the `Saturating` type](https://github.com/rust-lang/rust/pull/115477/) +- [Stabilize const_transmute_copy](https://github.com/rust-lang/rust/pull/115520/) + +<a id="1.74.0-Stabilized-APIs"></a> + +Stabilized APIs +--------------- + +- [`core::num::Saturating`](https://doc.rust-lang.org/stable/std/num/struct.Saturating.html) +- [`impl From<io::Stdout> for std::process::Stdio`](https://doc.rust-lang.org/stable/std/process/struct.Stdio.html#impl-From%3CStdout%3E-for-Stdio) +- [`impl From<io::Stderr> for std::process::Stdio`](https://doc.rust-lang.org/stable/std/process/struct.Stdio.html#impl-From%3CStderr%3E-for-Stdio) +- [`impl From<OwnedHandle> for std::process::Child{Stdin, Stdout, Stderr}`](https://doc.rust-lang.org/stable/std/process/struct.Stdio.html#impl-From%3CStderr%3E-for-Stdio) +- [`impl From<OwnedFd> for std::process::Child{Stdin, Stdout, Stderr}`](https://doc.rust-lang.org/stable/std/process/struct.Stdio.html#impl-From%3CStderr%3E-for-Stdio) +- [`std::ffi::OsString::from_encoded_bytes_unchecked`](https://doc.rust-lang.org/stable/std/ffi/struct.OsString.html#method.from_encoded_bytes_unchecked) +- [`std::ffi::OsString::into_encoded_bytes`](https://doc.rust-lang.org/stable/std/ffi/struct.OsString.html#method.into_encoded_bytes) +- [`std::ffi::OsStr::from_encoded_bytes_unchecked`](https://doc.rust-lang.org/stable/std/ffi/struct.OsStr.html#method.from_encoded_bytes_unchecked) +- [`std::ffi::OsStr::as_encoded_bytes`](https://doc.rust-lang.org/stable/std/ffi/struct.OsStr.html#method.as_encoded_bytes) +- [`std::io::Error::other`](https://doc.rust-lang.org/stable/std/io/struct.Error.html#method.other) +- [`impl TryFrom<char> for u16`](https://doc.rust-lang.org/stable/std/primitive.u16.html#impl-TryFrom%3Cchar%3E-for-u16) +- [`impl<T: Clone, const N: usize> From<&[T; N]> for Vec<T>`](https://doc.rust-lang.org/stable/std/vec/struct.Vec.html#impl-From%3C%26%5BT;+N%5D%3E-for-Vec%3CT,+Global%3E) +- [`impl<T: Clone, const N: usize> From<&mut [T; N]> for Vec<T>`](https://doc.rust-lang.org/stable/std/vec/struct.Vec.html#impl-From%3C%26mut+%5BT;+N%5D%3E-for-Vec%3CT,+Global%3E) +- [`impl<T, const N: usize> From<[T; N]> for Arc<[T]>`](https://doc.rust-lang.org/stable/std/sync/struct.Arc.html#impl-From%3C%5BT;+N%5D%3E-for-Arc%3C%5BT%5D,+Global%3E) +- [`impl<T, const N: usize> From<[T; N]> for Rc<[T]>`](https://doc.rust-lang.org/stable/std/rc/struct.Rc.html#impl-From%3C%5BT;+N%5D%3E-for-Rc%3C%5BT%5D,+Global%3E) + +These APIs are now stable in const contexts: + +- [`core::mem::transmute_copy`](https://doc.rust-lang.org/beta/std/mem/fn.transmute_copy.html) +- [`str::is_ascii`](https://doc.rust-lang.org/beta/std/primitive.str.html#method.is_ascii) +- [`[u8]::is_ascii`](https://doc.rust-lang.org/beta/std/primitive.slice.html#method.is_ascii) + +<a id="1.74.0-Cargo"></a> + +Cargo +----- + +- [fix: Set MSRV for internal packages](https://github.com/rust-lang/cargo/pull/12381/) +- [config: merge lists in precedence order](https://github.com/rust-lang/cargo/pull/12515/) +- [fix(update): Clarify meaning of --aggressive as --recursive](https://github.com/rust-lang/cargo/pull/12544/) +- [fix(update): Make `-p` more convenient by being positional](https://github.com/rust-lang/cargo/pull/12545/) +- [feat(help): Add styling to help output ](https://github.com/rust-lang/cargo/pull/12578/) +- [feat(pkgid): Allow incomplete versions when unambigious](https://github.com/rust-lang/cargo/pull/12614/) +- [feat: stabilize credential-process and registry-auth](https://github.com/rust-lang/cargo/pull/12649/) +- [feat(cli): Add '-n' to dry-run](https://github.com/rust-lang/cargo/pull/12660/) +- [Add support for `target.'cfg(..)'.linker`](https://github.com/rust-lang/cargo/pull/12535/) +- [Stabilize `--keep-going`](https://github.com/rust-lang/cargo/pull/12568/) +- [feat: Stabilize lints](https://github.com/rust-lang/cargo/pull/12648/) + +<a id="1.74.0-Rustdoc"></a> + +Rustdoc +------- + +- [Add warning block support in rustdoc](https://github.com/rust-lang/rust/pull/106561/) +- [Accept additional user-defined syntax classes in fenced code blocks](https://github.com/rust-lang/rust/pull/110800/) +- [rustdoc-search: add support for type parameters](https://github.com/rust-lang/rust/pull/112725/) +- [rustdoc: show inner enum and struct in type definition for concrete type](https://github.com/rust-lang/rust/pull/114855/) + +<a id="1.74.0-Compatibility-Notes"></a> + +Compatibility Notes +------------------- + +- [Raise minimum supported Apple OS versions](https://github.com/rust-lang/rust/pull/104385/) +- [make Cell::swap panic if the Cells partially overlap](https://github.com/rust-lang/rust/pull/114795/) +- [Reject invalid crate names in `--extern`](https://github.com/rust-lang/rust/pull/116001/) +- [Don't resolve generic impls that may be shadowed by dyn built-in impls](https://github.com/rust-lang/rust/pull/114941/) +- [The new `impl From<{&,&mut} [T; N]> for Vec<T>` is known to cause some inference failures with overly-generic code.](https://github.com/rust-lang/rust/issues/117054) In those examples using the `tui` crate, the combination of `AsRef<_>` and `Into<Vec>` leaves the middle type ambiguous, and the new `impl` adds another possibility, so it now requires an explicit type annotation. + +<a id="1.74.0-Internal-Changes"></a> + +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. + +None this cycle. + Version 1.73.0 (2023-10-05) ========================== diff --git a/compiler/rustc_ast/src/token.rs b/compiler/rustc_ast/src/token.rs index 914c97a14ac..a6ee93e8a6b 100644 --- a/compiler/rustc_ast/src/token.rs +++ b/compiler/rustc_ast/src/token.rs @@ -238,9 +238,9 @@ pub enum TokenKind { EqEq, /// `!=` Ne, - /// `>` - Ge, /// `>=` + Ge, + /// `>` Gt, /// `&&` AndAnd, diff --git a/compiler/rustc_ast_lowering/src/expr.rs b/compiler/rustc_ast_lowering/src/expr.rs index 0fff9a6be92..c07dbbc9d67 100644 --- a/compiler/rustc_ast_lowering/src/expr.rs +++ b/compiler/rustc_ast_lowering/src/expr.rs @@ -792,8 +792,11 @@ impl<'hir> LoweringContext<'_, 'hir> { // debuggers and debugger extensions expect it to be called `__awaitee`. They use // this name to identify what is being awaited by a suspended async functions. let awaitee_ident = Ident::with_dummy_span(sym::__awaitee); - let (awaitee_pat, awaitee_pat_hid) = - self.pat_ident_binding_mode(span, awaitee_ident, hir::BindingAnnotation::MUT); + let (awaitee_pat, awaitee_pat_hid) = self.pat_ident_binding_mode( + gen_future_span, + awaitee_ident, + hir::BindingAnnotation::MUT, + ); let task_context_ident = Ident::with_dummy_span(sym::_task_context); diff --git a/compiler/rustc_ast_lowering/src/lib.rs b/compiler/rustc_ast_lowering/src/lib.rs index a88493acf98..55d50e5fe6a 100644 --- a/compiler/rustc_ast_lowering/src/lib.rs +++ b/compiler/rustc_ast_lowering/src/lib.rs @@ -443,11 +443,6 @@ pub fn lower_to_hir(tcx: TyCtxt<'_>, (): ()) -> hir::Crate<'_> { drop(ast_index); sess.time("drop_ast", || drop(krate)); - // Discard hygiene data, which isn't required after lowering to HIR. - if !sess.opts.unstable_opts.keep_hygiene_data { - rustc_span::hygiene::clear_syntax_context_map(); - } - // Don't hash unless necessary, because it's expensive. let opt_hir_hash = if tcx.needs_crate_hash() { Some(compute_hir_hash(tcx, &owners)) } else { None }; diff --git a/compiler/rustc_ast_passes/messages.ftl b/compiler/rustc_ast_passes/messages.ftl index d22bae816ef..876126b02ea 100644 --- a/compiler/rustc_ast_passes/messages.ftl +++ b/compiler/rustc_ast_passes/messages.ftl @@ -218,9 +218,12 @@ ast_passes_static_without_body = .suggestion = provide a definition for the static ast_passes_tilde_const_disallowed = `~const` is not allowed here - .trait = trait objects cannot have `~const` trait bounds .closure = closures cannot have `~const` trait bounds .function = this function is not `const`, so it cannot have `~const` trait bounds + .trait = this trait is not a `#[const_trait]`, so it cannot have `~const` trait bounds + .impl = this impl is not `const`, so it cannot have `~const` trait bounds + .object = trait objects cannot have `~const` trait bounds + .item = this item cannot have `~const` trait bounds ast_passes_trait_fn_const = functions in traits cannot be declared const diff --git a/compiler/rustc_ast_passes/src/ast_validation.rs b/compiler/rustc_ast_passes/src/ast_validation.rs index 3d0513c8923..ce37f6677cf 100644 --- a/compiler/rustc_ast_passes/src/ast_validation.rs +++ b/compiler/rustc_ast_passes/src/ast_validation.rs @@ -40,6 +40,9 @@ enum SelfSemantic { enum DisallowTildeConstContext<'a> { TraitObject, Fn(FnKind<'a>), + Trait(Span), + Impl(Span), + Item, } struct AstValidator<'a> { @@ -110,18 +113,6 @@ impl<'a> AstValidator<'a> { self.disallow_tilde_const = old; } - fn with_tilde_const_allowed(&mut self, f: impl FnOnce(&mut Self)) { - self.with_tilde_const(None, f) - } - - fn with_banned_tilde_const( - &mut self, - ctx: DisallowTildeConstContext<'a>, - f: impl FnOnce(&mut Self), - ) { - self.with_tilde_const(Some(ctx), f) - } - fn check_type_alias_where_clause_location( &mut self, ty_alias: &TyAlias, @@ -173,7 +164,7 @@ impl<'a> AstValidator<'a> { self.with_impl_trait(Some(t.span), |this| visit::walk_ty(this, t)) } TyKind::TraitObject(..) => self - .with_banned_tilde_const(DisallowTildeConstContext::TraitObject, |this| { + .with_tilde_const(Some(DisallowTildeConstContext::TraitObject), |this| { visit::walk_ty(this, t) }), TyKind::Path(qself, path) => { @@ -845,11 +836,9 @@ impl<'a> Visitor<'a> for AstValidator<'a> { this.visit_vis(&item.vis); this.visit_ident(item.ident); - if let Const::Yes(_) = constness { - this.with_tilde_const_allowed(|this| this.visit_generics(generics)); - } else { - this.visit_generics(generics); - } + let disallowed = matches!(constness, Const::No) + .then(|| DisallowTildeConstContext::Impl(item.span)); + this.with_tilde_const(disallowed, |this| this.visit_generics(generics)); this.visit_trait_ref(t); this.visit_ty(self_ty); @@ -863,10 +852,10 @@ impl<'a> Visitor<'a> for AstValidator<'a> { polarity, defaultness, constness, - generics: _, + generics, of_trait: None, self_ty, - items: _, + items, }) => { let error = |annotation_span, annotation, only_trait: bool| errors::InherentImplCannot { @@ -898,6 +887,14 @@ impl<'a> Visitor<'a> for AstValidator<'a> { if let &Const::Yes(span) = constness { self.err_handler().emit_err(error(span, "`const`", true)); } + + self.visit_vis(&item.vis); + self.visit_ident(item.ident); + self.with_tilde_const(None, |this| this.visit_generics(generics)); + self.visit_ty(self_ty); + walk_list!(self, visit_assoc_item, items, AssocCtxt::Impl); + walk_list!(self, visit_attribute, &item.attrs); + return; // Avoid visiting again. } ItemKind::Fn(box Fn { defaultness, sig, generics, body }) => { self.check_defaultness(item.span, *defaultness); @@ -978,8 +975,10 @@ impl<'a> Visitor<'a> for AstValidator<'a> { // context for the supertraits. this.visit_vis(&item.vis); this.visit_ident(item.ident); - this.visit_generics(generics); - this.with_tilde_const_allowed(|this| { + let disallowed = + (!is_const_trait).then(|| DisallowTildeConstContext::Trait(item.span)); + this.with_tilde_const(disallowed, |this| { + this.visit_generics(generics); walk_list!(this, visit_param_bound, bounds, BoundKind::SuperTraits) }); walk_list!(this, visit_assoc_item, items, AssocCtxt::Trait); @@ -999,16 +998,11 @@ impl<'a> Visitor<'a> for AstValidator<'a> { } } ItemKind::Struct(vdata, generics) => match vdata { - // Duplicating the `Visitor` logic allows catching all cases - // of `Anonymous(Struct, Union)` outside of a field struct or union. - // - // Inside `visit_ty` the validator catches every `Anonymous(Struct, Union)` it - // encounters, and only on `ItemKind::Struct` and `ItemKind::Union` - // it uses `visit_ty_common`, which doesn't contain that specific check. VariantData::Struct(fields, ..) => { self.visit_vis(&item.vis); self.visit_ident(item.ident); self.visit_generics(generics); + // Permit `Anon{Struct,Union}` as field type. walk_list!(self, visit_struct_field_def, fields); walk_list!(self, visit_attribute, &item.attrs); return; @@ -1024,6 +1018,7 @@ impl<'a> Visitor<'a> for AstValidator<'a> { self.visit_vis(&item.vis); self.visit_ident(item.ident); self.visit_generics(generics); + // Permit `Anon{Struct,Union}` as field type. walk_list!(self, visit_struct_field_def, fields); walk_list!(self, visit_attribute, &item.attrs); return; @@ -1212,15 +1207,18 @@ impl<'a> Visitor<'a> for AstValidator<'a> { if let Some(reason) = &self.disallow_tilde_const => { let reason = match reason { - DisallowTildeConstContext::TraitObject => { - errors::TildeConstReason::TraitObject - } DisallowTildeConstContext::Fn(FnKind::Closure(..)) => { errors::TildeConstReason::Closure } DisallowTildeConstContext::Fn(FnKind::Fn(_, ident, ..)) => { errors::TildeConstReason::Function { ident: ident.span } } + &DisallowTildeConstContext::Trait(span) => errors::TildeConstReason::Trait { span }, + &DisallowTildeConstContext::Impl(span) => errors::TildeConstReason::Impl { span }, + DisallowTildeConstContext::TraitObject => { + errors::TildeConstReason::TraitObject + } + DisallowTildeConstContext::Item => errors::TildeConstReason::Item, }; self.err_handler() .emit_err(errors::TildeConstDisallowed { span: bound.span(), reason }); @@ -1328,7 +1326,6 @@ impl<'a> Visitor<'a> for AstValidator<'a> { || matches!(fk.ctxt(), Some(FnCtxt::Assoc(_)) if self.in_const_trait_or_impl); let disallowed = (!tilde_const_allowed).then(|| DisallowTildeConstContext::Fn(fk)); - self.with_tilde_const(disallowed, |this| visit::walk_fn(this, fk)); } @@ -1397,18 +1394,6 @@ impl<'a> Visitor<'a> for AstValidator<'a> { } match &item.kind { - AssocItemKind::Type(box TyAlias { generics, bounds, ty, .. }) - if ctxt == AssocCtxt::Trait => - { - self.visit_vis(&item.vis); - self.visit_ident(item.ident); - walk_list!(self, visit_attribute, &item.attrs); - self.with_tilde_const_allowed(|this| { - this.visit_generics(generics); - walk_list!(this, visit_param_bound, bounds, BoundKind::Bound); - }); - walk_list!(self, visit_ty, ty); - } AssocItemKind::Fn(box Fn { sig, generics, body, .. }) if self.in_const_trait_or_impl || ctxt == AssocCtxt::Trait @@ -1552,7 +1537,7 @@ pub fn check_crate( in_const_trait_or_impl: false, has_proc_macro_decls: false, outer_impl_trait: None, - disallow_tilde_const: None, + disallow_tilde_const: Some(DisallowTildeConstContext::Item), is_impl_trait_banned: false, lint_buffer: lints, }; diff --git a/compiler/rustc_ast_passes/src/errors.rs b/compiler/rustc_ast_passes/src/errors.rs index d14b62d6bdc..7f6fcb49317 100644 --- a/compiler/rustc_ast_passes/src/errors.rs +++ b/compiler/rustc_ast_passes/src/errors.rs @@ -551,8 +551,6 @@ pub struct TildeConstDisallowed { #[derive(Subdiagnostic)] pub enum TildeConstReason { - #[note(ast_passes_trait)] - TraitObject, #[note(ast_passes_closure)] Closure, #[note(ast_passes_function)] @@ -560,6 +558,20 @@ pub enum TildeConstReason { #[primary_span] ident: Span, }, + #[note(ast_passes_trait)] + Trait { + #[primary_span] + span: Span, + }, + #[note(ast_passes_impl)] + Impl { + #[primary_span] + span: Span, + }, + #[note(ast_passes_object)] + TraitObject, + #[note(ast_passes_item)] + Item, } #[derive(Diagnostic)] diff --git a/compiler/rustc_borrowck/src/diagnostics/mod.rs b/compiler/rustc_borrowck/src/diagnostics/mod.rs index c4323fef935..c85b2f0a9d7 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mod.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mod.rs @@ -10,7 +10,7 @@ use rustc_hir as hir; use rustc_hir::def::{CtorKind, Namespace}; use rustc_hir::CoroutineKind; use rustc_index::IndexSlice; -use rustc_infer::infer::LateBoundRegionConversionTime; +use rustc_infer::infer::BoundRegionConversionTime; use rustc_middle::mir::tcx::PlaceTy; use rustc_middle::mir::{ AggregateKind, CallSource, ConstOperand, FakeReadCause, Local, LocalInfo, LocalKind, Location, @@ -462,7 +462,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { // lifetimes without names with the value `'0`. if let ty::Ref(region, ..) = ty.kind() { match **region { - ty::ReLateBound(_, ty::BoundRegion { kind: br, .. }) + ty::ReBound(_, ty::BoundRegion { kind: br, .. }) | ty::RePlaceholder(ty::PlaceholderRegion { bound: ty::BoundRegion { kind: br, .. }, .. @@ -482,7 +482,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { let region = if let ty::Ref(region, ..) = ty.kind() { match **region { - ty::ReLateBound(_, ty::BoundRegion { kind: br, .. }) + ty::ReBound(_, ty::BoundRegion { kind: br, .. }) | ty::RePlaceholder(ty::PlaceholderRegion { bound: ty::BoundRegion { kind: br, .. }, .. @@ -1113,7 +1113,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> { && let ty::Ref(_, _, hir::Mutability::Mut) = args.type_at(0).kind() && let self_ty = self.infcx.instantiate_binder_with_fresh_vars( fn_call_span, - LateBoundRegionConversionTime::FnCall, + BoundRegionConversionTime::FnCall, tcx.fn_sig(method_did).instantiate(tcx, method_args).input(0), ) && self.infcx.can_eq(self.param_env, ty, self_ty) diff --git a/compiler/rustc_borrowck/src/diagnostics/outlives_suggestion.rs b/compiler/rustc_borrowck/src/diagnostics/outlives_suggestion.rs index b6eb9ae980e..94981c45582 100644 --- a/compiler/rustc_borrowck/src/diagnostics/outlives_suggestion.rs +++ b/compiler/rustc_borrowck/src/diagnostics/outlives_suggestion.rs @@ -50,8 +50,8 @@ impl OutlivesSuggestionBuilder { // naming the `'self` lifetime in methods, etc. fn region_name_is_suggestable(name: &RegionName) -> bool { match name.source { - RegionNameSource::NamedEarlyBoundRegion(..) - | RegionNameSource::NamedFreeRegion(..) + RegionNameSource::NamedEarlyParamRegion(..) + | RegionNameSource::NamedLateParamRegion(..) | RegionNameSource::Static => true, // Don't give suggestions for upvars, closure return types, or other unnameable diff --git a/compiler/rustc_borrowck/src/diagnostics/region_errors.rs b/compiler/rustc_borrowck/src/diagnostics/region_errors.rs index a0a809123c0..e3927403939 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_errors.rs @@ -181,8 +181,8 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { /// Returns `true` if a closure is inferred to be an `FnMut` closure. fn is_closure_fn_mut(&self, fr: RegionVid) -> bool { - if let Some(ty::ReFree(free_region)) = self.to_error_region(fr).as_deref() - && let ty::BoundRegionKind::BrEnv = free_region.bound_region + if let Some(ty::ReLateParam(late_param)) = self.to_error_region(fr).as_deref() + && let ty::BoundRegionKind::BrEnv = late_param.bound_region && let DefiningTy::Closure(_, args) = self.regioncx.universal_regions().defining_ty { return args.as_closure().kind() == ty::ClosureKind::FnMut; @@ -995,7 +995,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { .infcx .tcx .is_suitable_region(sub) - .and_then(|anon_reg| find_anon_type(self.infcx.tcx, sub, &anon_reg.boundregion)) + .and_then(|anon_reg| find_anon_type(self.infcx.tcx, sub, &anon_reg.bound_region)) else { return; }; @@ -1004,7 +1004,7 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> { .infcx .tcx .is_suitable_region(sup) - .and_then(|anon_reg| find_anon_type(self.infcx.tcx, sup, &anon_reg.boundregion)) + .and_then(|anon_reg| find_anon_type(self.infcx.tcx, sup, &anon_reg.bound_region)) else { return; }; diff --git a/compiler/rustc_borrowck/src/diagnostics/region_name.rs b/compiler/rustc_borrowck/src/diagnostics/region_name.rs index d38cfbc54d7..fee35485cd7 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_name.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_name.rs @@ -23,14 +23,14 @@ pub(crate) struct RegionName { } /// Denotes the source of a region that is named by a `RegionName`. For example, a free region that -/// was named by the user would get `NamedFreeRegion` and `'static` lifetime would get `Static`. +/// was named by the user would get `NamedLateParamRegion` and `'static` lifetime would get `Static`. /// This helps to print the right kinds of diagnostics. #[derive(Debug, Clone)] pub(crate) enum RegionNameSource { /// A bound (not free) region that was instantiated at the def site (not an HRTB). - NamedEarlyBoundRegion(Span), + NamedEarlyParamRegion(Span), /// A free region that the user has a name (`'a`) for. - NamedFreeRegion(Span), + NamedLateParamRegion(Span), /// The `'static` region. Static, /// The free region corresponding to the environment of a closure. @@ -69,8 +69,8 @@ pub(crate) enum RegionNameHighlight { impl RegionName { pub(crate) fn was_named(&self) -> bool { match self.source { - RegionNameSource::NamedEarlyBoundRegion(..) - | RegionNameSource::NamedFreeRegion(..) + RegionNameSource::NamedEarlyParamRegion(..) + | RegionNameSource::NamedLateParamRegion(..) | RegionNameSource::Static => true, RegionNameSource::SynthesizedFreeEnvRegion(..) | RegionNameSource::AnonRegionFromArgument(..) @@ -85,8 +85,8 @@ impl RegionName { pub(crate) fn span(&self) -> Option<Span> { match self.source { RegionNameSource::Static => None, - RegionNameSource::NamedEarlyBoundRegion(span) - | RegionNameSource::NamedFreeRegion(span) + RegionNameSource::NamedEarlyParamRegion(span) + | RegionNameSource::NamedLateParamRegion(span) | RegionNameSource::SynthesizedFreeEnvRegion(span, _) | RegionNameSource::AnonRegionFromUpvar(span, _) | RegionNameSource::AnonRegionFromYieldTy(span, _) @@ -104,8 +104,8 @@ impl RegionName { pub(crate) fn highlight_region_name(&self, diag: &mut Diagnostic) { match &self.source { - RegionNameSource::NamedFreeRegion(span) - | RegionNameSource::NamedEarlyBoundRegion(span) => { + RegionNameSource::NamedLateParamRegion(span) + | RegionNameSource::NamedEarlyParamRegion(span) => { diag.span_label(*span, format!("lifetime `{self}` defined here")); } RegionNameSource::SynthesizedFreeEnvRegion(span, note) => { @@ -280,28 +280,31 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> { debug!("give_region_a_name: error_region = {:?}", error_region); match *error_region { - ty::ReEarlyBound(ebr) => ebr.has_name().then(|| { + ty::ReEarlyParam(ebr) => ebr.has_name().then(|| { let span = tcx.hir().span_if_local(ebr.def_id).unwrap_or(DUMMY_SP); - RegionName { name: ebr.name, source: RegionNameSource::NamedEarlyBoundRegion(span) } + RegionName { name: ebr.name, source: RegionNameSource::NamedEarlyParamRegion(span) } }), ty::ReStatic => { Some(RegionName { name: kw::StaticLifetime, source: RegionNameSource::Static }) } - ty::ReFree(free_region) => match free_region.bound_region { + ty::ReLateParam(late_param) => match late_param.bound_region { ty::BoundRegionKind::BrNamed(region_def_id, name) => { // Get the span to point to, even if we don't use the name. let span = tcx.hir().span_if_local(region_def_id).unwrap_or(DUMMY_SP); debug!( "bound region named: {:?}, is_named: {:?}", name, - free_region.bound_region.is_named() + late_param.bound_region.is_named() ); - if free_region.bound_region.is_named() { + if late_param.bound_region.is_named() { // A named region that is actually named. - Some(RegionName { name, source: RegionNameSource::NamedFreeRegion(span) }) + Some(RegionName { + name, + source: RegionNameSource::NamedLateParamRegion(span), + }) } else if tcx.asyncness(self.mir_hir_id().owner).is_async() { // If we spuriously thought that the region is named, we should let the // system generate a true name for error messages. Currently this can @@ -357,7 +360,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> { ty::BoundRegionKind::BrAnon => None, }, - ty::ReLateBound(..) + ty::ReBound(..) | ty::ReVar(..) | ty::RePlaceholder(..) | ty::ReErased @@ -847,7 +850,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> { &self, fr: RegionVid, ) -> Option<RegionName> { - let ty::ReEarlyBound(region) = *self.to_error_region(fr)? else { + let ty::ReEarlyParam(region) = *self.to_error_region(fr)? else { return None; }; if region.has_name() { @@ -862,7 +865,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> { let found = tcx .any_free_region_meets(&tcx.type_of(region_parent).instantiate_identity(), |r| { - *r == ty::ReEarlyBound(region) + *r == ty::ReEarlyParam(region) }); Some(RegionName { @@ -881,7 +884,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> { &self, fr: RegionVid, ) -> Option<RegionName> { - let ty::ReEarlyBound(region) = *self.to_error_region(fr)? else { + let ty::ReEarlyParam(region) = *self.to_error_region(fr)? else { return None; }; if region.has_name() { @@ -943,7 +946,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> { &self, clauses: &[ty::Clause<'tcx>], ty: Ty<'tcx>, - region: ty::EarlyBoundRegion, + region: ty::EarlyParamRegion, ) -> bool { let tcx = self.infcx.tcx; ty.walk().any(|arg| { @@ -956,7 +959,7 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> { ty::ClauseKind::Projection(data) if data.projection_ty.self_ty() == ty => {} _ => return false, } - tcx.any_free_region_meets(pred, |r| *r == ty::ReEarlyBound(region)) + tcx.any_free_region_meets(pred, |r| *r == ty::ReEarlyParam(region)) }) } else { false diff --git a/compiler/rustc_borrowck/src/region_infer/opaque_types.rs b/compiler/rustc_borrowck/src/region_infer/opaque_types.rs index fb0e5811c26..c93cfa78832 100644 --- a/compiler/rustc_borrowck/src/region_infer/opaque_types.rs +++ b/compiler/rustc_borrowck/src/region_infer/opaque_types.rs @@ -36,7 +36,7 @@ impl<'tcx> RegionInferenceContext<'tcx> { /// call `infer_opaque_definition_from_instantiation` to get the inferred /// type of `_Return<'_a>`. `infer_opaque_definition_from_instantiation` /// compares lifetimes directly, so we need to map the inference variables - /// back to concrete lifetimes: `'static`, `ReEarlyBound` or `ReFree`. + /// back to concrete lifetimes: `'static`, `ReEarlyParam` or `ReLateParam`. /// /// First we map all the lifetimes in the concrete type to an equal /// universal region that occurs in the concrete type's args, in this case @@ -386,7 +386,7 @@ fn check_opaque_type_parameter_valid( let arg_is_param = match arg.unpack() { GenericArgKind::Type(ty) => matches!(ty.kind(), ty::Param(_)), GenericArgKind::Lifetime(lt) if is_ty_alias => { - matches!(*lt, ty::ReEarlyBound(_) | ty::ReFree(_)) + matches!(*lt, ty::ReEarlyParam(_) | ty::ReLateParam(_)) } // FIXME(#113916): we can't currently check for unique lifetime params, // see that issue for more. We will also have to ignore unused lifetime diff --git a/compiler/rustc_borrowck/src/renumber.rs b/compiler/rustc_borrowck/src/renumber.rs index ec0131c5349..a31d39e14cd 100644 --- a/compiler/rustc_borrowck/src/renumber.rs +++ b/compiler/rustc_borrowck/src/renumber.rs @@ -28,6 +28,9 @@ pub fn renumber_mir<'tcx>( renumberer.visit_body(body); } +// FIXME(@lcnr): A lot of these variants overlap and it seems like +// this type is only used to decide which region should be used +// as representative. This should be cleaned up. #[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)] pub(crate) enum RegionCtxt { Location(Location), diff --git a/compiler/rustc_borrowck/src/type_check/input_output.rs b/compiler/rustc_borrowck/src/type_check/input_output.rs index d053d0a4b3b..28cc8be8ac9 100644 --- a/compiler/rustc_borrowck/src/type_check/input_output.rs +++ b/compiler/rustc_borrowck/src/type_check/input_output.rs @@ -7,7 +7,7 @@ //! `RETURN_PLACE` the MIR arguments) are always fully normalized (and //! contain revealed `impl Trait` values). -use rustc_infer::infer::LateBoundRegionConversionTime; +use rustc_infer::infer::BoundRegionConversionTime; use rustc_middle::mir::*; use rustc_middle::ty::{self, Ty}; use rustc_span::Span; @@ -35,7 +35,7 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> { .instantiate_canonical_with_fresh_inference_vars(body.span, &user_provided_poly_sig); let user_provided_sig = self.infcx.instantiate_binder_with_fresh_vars( body.span, - LateBoundRegionConversionTime::FnCall, + BoundRegionConversionTime::FnCall, user_provided_sig, ); diff --git a/compiler/rustc_borrowck/src/type_check/mod.rs b/compiler/rustc_borrowck/src/type_check/mod.rs index 608d010394f..bd01210544f 100644 --- a/compiler/rustc_borrowck/src/type_check/mod.rs +++ b/compiler/rustc_borrowck/src/type_check/mod.rs @@ -21,7 +21,7 @@ use rustc_infer::infer::outlives::env::RegionBoundPairs; use rustc_infer::infer::region_constraints::RegionConstraintData; use rustc_infer::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind}; use rustc_infer::infer::{ - InferCtxt, LateBoundRegion, LateBoundRegionConversionTime, NllRegionVariableOrigin, + BoundRegion, BoundRegionConversionTime, InferCtxt, NllRegionVariableOrigin, }; use rustc_middle::mir::tcx::PlaceTy; use rustc_middle::mir::visit::{NonMutatingUseContext, PlaceContext, Visitor}; @@ -1401,10 +1401,10 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> { }; self.infcx.next_region_var( - LateBoundRegion( + BoundRegion( term.source_info.span, br.kind, - LateBoundRegionConversionTime::FnCall, + BoundRegionConversionTime::FnCall, ), region_ctxt_fn, ) diff --git a/compiler/rustc_borrowck/src/type_check/relate_tys.rs b/compiler/rustc_borrowck/src/type_check/relate_tys.rs index c1f82e19c02..ee0bd13109b 100644 --- a/compiler/rustc_borrowck/src/type_check/relate_tys.rs +++ b/compiler/rustc_borrowck/src/type_check/relate_tys.rs @@ -107,12 +107,12 @@ impl<'tcx> TypeRelatingDelegate<'tcx> for NllTypeRelatingDelegate<'_, '_, 'tcx> fn next_existential_region_var( &mut self, from_forall: bool, - _name: Option<Symbol>, + name: Option<Symbol>, ) -> ty::Region<'tcx> { let origin = NllRegionVariableOrigin::Existential { from_forall }; let reg_var = - self.type_checker.infcx.next_nll_region_var(origin, || RegionCtxt::Existential(_name)); + self.type_checker.infcx.next_nll_region_var(origin, || RegionCtxt::Existential(name)); reg_var } diff --git a/compiler/rustc_borrowck/src/universal_regions.rs b/compiler/rustc_borrowck/src/universal_regions.rs index 7897a5a63ba..02f94e5b972 100644 --- a/compiler/rustc_borrowck/src/universal_regions.rs +++ b/compiler/rustc_borrowck/src/universal_regions.rs @@ -462,7 +462,6 @@ impl<'cx, 'tcx> UniversalRegionsBuilder<'cx, 'tcx> { // "Liberate" the late-bound regions. These correspond to // "local" free regions. - let bound_inputs_and_output = self.compute_inputs_and_output(&indices, defining_ty); let inputs_and_output = self.infcx.replace_bound_regions_with_nll_infer_vars( @@ -665,7 +664,7 @@ impl<'cx, 'tcx> UniversalRegionsBuilder<'cx, 'tcx> { var: ty::BoundVar::from_usize(bound_vars.len() - 1), kind: ty::BrEnv, }; - let env_region = ty::Region::new_late_bound(tcx, ty::INNERMOST, br); + let env_region = ty::Region::new_bound(tcx, ty::INNERMOST, br); let closure_ty = tcx.closure_env_ty(def_id, args, env_region).unwrap(); // The "inputs" of the closure in the @@ -784,7 +783,7 @@ impl<'cx, 'tcx> InferCtxtExt<'tcx> for BorrowckInferCtxt<'cx, 'tcx> { let (value, _map) = self.tcx.replace_late_bound_regions(value, |br| { debug!(?br); let liberated_region = - ty::Region::new_free(self.tcx, all_outlive_scope.to_def_id(), br.kind); + ty::Region::new_late_param(self.tcx, all_outlive_scope.to_def_id(), br.kind); let region_vid = { let name = match br.kind.get_name() { Some(name) => name, @@ -854,7 +853,7 @@ impl<'tcx> UniversalRegionIndices<'tcx> { /// Initially, the `UniversalRegionIndices` map contains only the /// early-bound regions in scope. Once that is all setup, we come /// in later and instantiate the late-bound regions, and then we - /// insert the `ReFree` version of those into the map as + /// insert the `ReLateParam` version of those into the map as /// well. These are used for error reporting. fn insert_late_bound_region(&mut self, r: ty::Region<'tcx>, vid: ty::RegionVid) { debug!("insert_late_bound_region({:?}, {:?})", r, vid); @@ -933,7 +932,8 @@ fn for_each_late_bound_region_in_item<'tcx>( let ty::BoundVariableKind::Region(bound_region) = bound_var else { continue; }; - let liberated_region = ty::Region::new_free(tcx, mir_def_id.to_def_id(), bound_region); + let liberated_region = + ty::Region::new_late_param(tcx, mir_def_id.to_def_id(), bound_region); f(liberated_region); } } diff --git a/compiler/rustc_codegen_gcc/src/lib.rs b/compiler/rustc_codegen_gcc/src/lib.rs index a530fc994a2..40373ee1d27 100644 --- a/compiler/rustc_codegen_gcc/src/lib.rs +++ b/compiler/rustc_codegen_gcc/src/lib.rs @@ -384,7 +384,7 @@ pub fn target_features(sess: &Session, allow_unstable: bool, target_info: &Locke .iter() .filter_map( |&(feature, gate)| { - if sess.is_nightly_build() || allow_unstable || gate.is_none() { Some(feature) } else { None } + if sess.is_nightly_build() || allow_unstable || gate.is_stable() { Some(feature) } else { None } }, ) .filter(|_feature| { diff --git a/compiler/rustc_codegen_llvm/src/callee.rs b/compiler/rustc_codegen_llvm/src/callee.rs index d5778757caa..0c9f7f19551 100644 --- a/compiler/rustc_codegen_llvm/src/callee.rs +++ b/compiler/rustc_codegen_llvm/src/callee.rs @@ -59,7 +59,7 @@ pub fn get_fn<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>, instance: Instance<'tcx>) -> // To avoid this, we set the Storage Class to "DllImport" so that // LLVM will prefix the name with `__imp_`. Ideally, we'd like the // existing logic below to set the Storage Class, but it has an - // exemption for MinGW for backwards compatability. + // exemption for MinGW for backwards compatibility. let llfn = cx.declare_fn( &common::i686_decorated_name( &dllimport, diff --git a/compiler/rustc_codegen_llvm/src/context.rs b/compiler/rustc_codegen_llvm/src/context.rs index 4dd6372b5e0..242c6aed906 100644 --- a/compiler/rustc_codegen_llvm/src/context.rs +++ b/compiler/rustc_codegen_llvm/src/context.rs @@ -368,6 +368,24 @@ pub unsafe fn create_module<'ll>( llvm::LLVMMDNodeInContext(llcx, &name_metadata, 1), ); + // Add module flags specified via -Z llvm_module_flag + for (key, value, behavior) in &sess.opts.unstable_opts.llvm_module_flag { + let key = format!("{key}\0"); + let behavior = match behavior.as_str() { + "error" => llvm::LLVMModFlagBehavior::Error, + "warning" => llvm::LLVMModFlagBehavior::Warning, + "require" => llvm::LLVMModFlagBehavior::Require, + "override" => llvm::LLVMModFlagBehavior::Override, + "append" => llvm::LLVMModFlagBehavior::Append, + "appendunique" => llvm::LLVMModFlagBehavior::AppendUnique, + "max" => llvm::LLVMModFlagBehavior::Max, + "min" => llvm::LLVMModFlagBehavior::Min, + // We already checked this during option parsing + _ => unreachable!(), + }; + llvm::LLVMRustAddModuleFlag(llmod, behavior, key.as_ptr().cast(), *value) + } + llmod } diff --git a/compiler/rustc_codegen_llvm/src/llvm_util.rs b/compiler/rustc_codegen_llvm/src/llvm_util.rs index cc4ccaf19c2..c86bf81fc13 100644 --- a/compiler/rustc_codegen_llvm/src/llvm_util.rs +++ b/compiler/rustc_codegen_llvm/src/llvm_util.rs @@ -293,7 +293,7 @@ pub fn target_features(sess: &Session, allow_unstable: bool) -> Vec<Symbol> { supported_target_features(sess) .iter() .filter_map(|&(feature, gate)| { - if sess.is_nightly_build() || allow_unstable || gate.is_none() { + if sess.is_nightly_build() || allow_unstable || gate.is_stable() { Some(feature) } else { None @@ -554,7 +554,8 @@ pub(crate) fn global_llvm_features(sess: &Session, diagnostics: bool) -> Vec<Str UnknownCTargetFeature { feature, rust_feature: PossibleFeature::None } }; sess.emit_warning(unknown_feature); - } else if feature_state.is_some_and(|(_name, feature_gate)| feature_gate.is_some()) + } else if feature_state + .is_some_and(|(_name, feature_gate)| !feature_gate.is_stable()) { // An unstable feature. Warn about using it. sess.emit_warning(UnstableCTargetFeature { feature }); diff --git a/compiler/rustc_codegen_ssa/src/mir/analyze.rs b/compiler/rustc_codegen_ssa/src/mir/analyze.rs index 2285e7f4e01..ed859cb20de 100644 --- a/compiler/rustc_codegen_ssa/src/mir/analyze.rs +++ b/compiler/rustc_codegen_ssa/src/mir/analyze.rs @@ -36,7 +36,7 @@ pub fn non_ssa_locals<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( // Arguments get assigned to by means of the function being called for arg in mir.args_iter() { - analyzer.assign(arg, DefLocation::Argument); + analyzer.define(arg, DefLocation::Argument); } // If there exists a local definition that dominates all uses of that local, @@ -74,7 +74,7 @@ struct LocalAnalyzer<'mir, 'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> { } impl<'mir, 'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> LocalAnalyzer<'mir, 'a, 'tcx, Bx> { - fn assign(&mut self, local: mir::Local, location: DefLocation) { + fn define(&mut self, local: mir::Local, location: DefLocation) { let kind = &mut self.locals[local]; match *kind { LocalKind::ZST => {} @@ -162,7 +162,7 @@ impl<'mir, 'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> Visitor<'tcx> debug!("visit_assign(place={:?}, rvalue={:?})", place, rvalue); if let Some(local) = place.as_local() { - self.assign(local, DefLocation::Body(location)); + self.define(local, DefLocation::Assignment(location)); if self.locals[local] != LocalKind::Memory { let decl_span = self.fx.mir.local_decls[local].source_info.span; if !self.fx.rvalue_creates_operand(rvalue, decl_span) { @@ -183,9 +183,14 @@ impl<'mir, 'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> Visitor<'tcx> fn visit_local(&mut self, local: mir::Local, context: PlaceContext, location: Location) { match context { - PlaceContext::MutatingUse(MutatingUseContext::Call) - | PlaceContext::MutatingUse(MutatingUseContext::Yield) => { - self.assign(local, DefLocation::Body(location)); + PlaceContext::MutatingUse(MutatingUseContext::Call) => { + let call = location.block; + let TerminatorKind::Call { target, .. } = + self.fx.mir.basic_blocks[call].terminator().kind + else { + bug!() + }; + self.define(local, DefLocation::CallReturn { call, target }); } PlaceContext::NonUse(_) @@ -237,6 +242,8 @@ impl<'mir, 'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> Visitor<'tcx> } } } + + PlaceContext::MutatingUse(MutatingUseContext::Yield) => bug!(), } } } diff --git a/compiler/rustc_codegen_ssa/src/target_features.rs b/compiler/rustc_codegen_ssa/src/target_features.rs index 2936f1de3cb..d802816bb75 100644 --- a/compiler/rustc_codegen_ssa/src/target_features.rs +++ b/compiler/rustc_codegen_ssa/src/target_features.rs @@ -19,10 +19,44 @@ use rustc_span::Span; /// Features that control behaviour of rustc, rather than the codegen. pub const RUSTC_SPECIFIC_FEATURES: &[&str] = &["crt-static"]; +/// Stability information for target features. +#[derive(Debug, Clone, Copy)] +pub enum Stability { + /// This target feature is stable, it can be used in `#[target_feature]` and + /// `#[cfg(target_feature)]`. + Stable, + /// This target feature is unstable; using it in `#[target_feature]` or `#[cfg(target_feature)]` + /// requires enabling the given nightly feature. + Unstable(Symbol), +} +use Stability::*; + +impl Stability { + fn as_feature_name(self) -> Option<Symbol> { + match self { + Stable => None, + Unstable(s) => Some(s), + } + } + + pub fn is_stable(self) -> bool { + matches!(self, Stable) + } +} + +// Here we list target features that rustc "understands": they can be used in `#[target_feature]` +// and `#[cfg(target_feature)]`. They also do not trigger any warnings when used with +// `-Ctarget-feature`. +// // When adding features to the below lists // check whether they're named already elsewhere in rust // e.g. in stdarch and whether the given name matches LLVM's -// if it doesn't, to_llvm_feature in llvm_util in rustc_codegen_llvm needs to be adapted +// if it doesn't, to_llvm_feature in llvm_util in rustc_codegen_llvm needs to be adapted. +// +// Also note that all target features listed here must be purely additive: for target_feature 1.1 to +// be sound, we can never allow features like `+soft-float` (on x86) to be controlled on a +// per-function level, since we would then allow safe calls from functions with `+soft-float` to +// functions without that feature! // // When adding a new feature, be particularly mindful of features that affect function ABIs. Those // need to be treated very carefully to avoid introducing unsoundness! This often affects features @@ -30,139 +64,138 @@ pub const RUSTC_SPECIFIC_FEATURES: &[&str] = &["crt-static"]; // example of this going wrong), but features enabling new SIMD registers are also a concern (see // https://github.com/rust-lang/rust/issues/116558 for an example of this going wrong). // -// Stabilizing a target feature (setting the 2nd component of the pair to `None`) requires t-lang -// approval. +// Stabilizing a target feature requires t-lang approval. -const ARM_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[ +const ARM_ALLOWED_FEATURES: &[(&str, Stability)] = &[ // tidy-alphabetical-start - ("aclass", Some(sym::arm_target_feature)), - ("aes", Some(sym::arm_target_feature)), - ("crc", Some(sym::arm_target_feature)), - ("d32", Some(sym::arm_target_feature)), - ("dotprod", Some(sym::arm_target_feature)), - ("dsp", Some(sym::arm_target_feature)), - ("fp-armv8", Some(sym::arm_target_feature)), - ("i8mm", Some(sym::arm_target_feature)), - ("mclass", Some(sym::arm_target_feature)), - ("neon", Some(sym::arm_target_feature)), - ("rclass", Some(sym::arm_target_feature)), - ("sha2", Some(sym::arm_target_feature)), + ("aclass", Unstable(sym::arm_target_feature)), + ("aes", Unstable(sym::arm_target_feature)), + ("crc", Unstable(sym::arm_target_feature)), + ("d32", Unstable(sym::arm_target_feature)), + ("dotprod", Unstable(sym::arm_target_feature)), + ("dsp", Unstable(sym::arm_target_feature)), + ("fp-armv8", Unstable(sym::arm_target_feature)), + ("i8mm", Unstable(sym::arm_target_feature)), + ("mclass", Unstable(sym::arm_target_feature)), + ("neon", Unstable(sym::arm_target_feature)), + ("rclass", Unstable(sym::arm_target_feature)), + ("sha2", Unstable(sym::arm_target_feature)), // This is needed for inline assembly, but shouldn't be stabilized as-is // since it should be enabled per-function using #[instruction_set], not // #[target_feature]. - ("thumb-mode", Some(sym::arm_target_feature)), - ("thumb2", Some(sym::arm_target_feature)), - ("trustzone", Some(sym::arm_target_feature)), - ("v5te", Some(sym::arm_target_feature)), - ("v6", Some(sym::arm_target_feature)), - ("v6k", Some(sym::arm_target_feature)), - ("v6t2", Some(sym::arm_target_feature)), - ("v7", Some(sym::arm_target_feature)), - ("v8", Some(sym::arm_target_feature)), - ("vfp2", Some(sym::arm_target_feature)), - ("vfp3", Some(sym::arm_target_feature)), - ("vfp4", Some(sym::arm_target_feature)), - ("virtualization", Some(sym::arm_target_feature)), + ("thumb-mode", Unstable(sym::arm_target_feature)), + ("thumb2", Unstable(sym::arm_target_feature)), + ("trustzone", Unstable(sym::arm_target_feature)), + ("v5te", Unstable(sym::arm_target_feature)), + ("v6", Unstable(sym::arm_target_feature)), + ("v6k", Unstable(sym::arm_target_feature)), + ("v6t2", Unstable(sym::arm_target_feature)), + ("v7", Unstable(sym::arm_target_feature)), + ("v8", Unstable(sym::arm_target_feature)), + ("vfp2", Unstable(sym::arm_target_feature)), + ("vfp3", Unstable(sym::arm_target_feature)), + ("vfp4", Unstable(sym::arm_target_feature)), + ("virtualization", Unstable(sym::arm_target_feature)), // tidy-alphabetical-end ]; -const AARCH64_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[ +const AARCH64_ALLOWED_FEATURES: &[(&str, Stability)] = &[ // tidy-alphabetical-start // FEAT_AES - ("aes", None), + ("aes", Stable), // FEAT_BF16 - ("bf16", None), + ("bf16", Stable), // FEAT_BTI - ("bti", None), + ("bti", Stable), // FEAT_CRC - ("crc", None), + ("crc", Stable), // FEAT_DIT - ("dit", None), + ("dit", Stable), // FEAT_DotProd - ("dotprod", None), + ("dotprod", Stable), // FEAT_DPB - ("dpb", None), + ("dpb", Stable), // FEAT_DPB2 - ("dpb2", None), + ("dpb2", Stable), // FEAT_F32MM - ("f32mm", None), + ("f32mm", Stable), // FEAT_F64MM - ("f64mm", None), + ("f64mm", Stable), // FEAT_FCMA - ("fcma", None), + ("fcma", Stable), // FEAT_FHM - ("fhm", None), + ("fhm", Stable), // FEAT_FLAGM - ("flagm", None), + ("flagm", Stable), // FEAT_FP16 - ("fp16", None), + ("fp16", Stable), // FEAT_FRINTTS - ("frintts", None), + ("frintts", Stable), // FEAT_I8MM - ("i8mm", None), + ("i8mm", Stable), // FEAT_JSCVT - ("jsconv", None), + ("jsconv", Stable), // FEAT_LOR - ("lor", None), + ("lor", Stable), // FEAT_LSE - ("lse", None), + ("lse", Stable), // FEAT_MTE - ("mte", None), + ("mte", Stable), // FEAT_AdvSimd & FEAT_FP - ("neon", None), + ("neon", Stable), // FEAT_PAUTH (address authentication) - ("paca", None), + ("paca", Stable), // FEAT_PAUTH (generic authentication) - ("pacg", None), + ("pacg", Stable), // FEAT_PAN - ("pan", None), + ("pan", Stable), // FEAT_PMUv3 - ("pmuv3", None), + ("pmuv3", Stable), // FEAT_RAND - ("rand", None), + ("rand", Stable), // FEAT_RAS - ("ras", None), + ("ras", Stable), // FEAT_RCPC - ("rcpc", None), + ("rcpc", Stable), // FEAT_RCPC2 - ("rcpc2", None), + ("rcpc2", Stable), // FEAT_RDM - ("rdm", None), + ("rdm", Stable), // FEAT_SB - ("sb", None), + ("sb", Stable), // FEAT_SHA1 & FEAT_SHA256 - ("sha2", None), + ("sha2", Stable), // FEAT_SHA512 & FEAT_SHA3 - ("sha3", None), + ("sha3", Stable), // FEAT_SM3 & FEAT_SM4 - ("sm4", None), + ("sm4", Stable), // FEAT_SPE - ("spe", None), + ("spe", Stable), // FEAT_SSBS - ("ssbs", None), + ("ssbs", Stable), // FEAT_SVE - ("sve", None), + ("sve", Stable), // FEAT_SVE2 - ("sve2", None), + ("sve2", Stable), // FEAT_SVE2_AES - ("sve2-aes", None), + ("sve2-aes", Stable), // FEAT_SVE2_BitPerm - ("sve2-bitperm", None), + ("sve2-bitperm", Stable), // FEAT_SVE2_SHA3 - ("sve2-sha3", None), + ("sve2-sha3", Stable), // FEAT_SVE2_SM4 - ("sve2-sm4", None), + ("sve2-sm4", Stable), // FEAT_TME - ("tme", None), - ("v8.1a", Some(sym::aarch64_ver_target_feature)), - ("v8.2a", Some(sym::aarch64_ver_target_feature)), - ("v8.3a", Some(sym::aarch64_ver_target_feature)), - ("v8.4a", Some(sym::aarch64_ver_target_feature)), - ("v8.5a", Some(sym::aarch64_ver_target_feature)), - ("v8.6a", Some(sym::aarch64_ver_target_feature)), - ("v8.7a", Some(sym::aarch64_ver_target_feature)), + ("tme", Stable), + ("v8.1a", Unstable(sym::aarch64_ver_target_feature)), + ("v8.2a", Unstable(sym::aarch64_ver_target_feature)), + ("v8.3a", Unstable(sym::aarch64_ver_target_feature)), + ("v8.4a", Unstable(sym::aarch64_ver_target_feature)), + ("v8.5a", Unstable(sym::aarch64_ver_target_feature)), + ("v8.6a", Unstable(sym::aarch64_ver_target_feature)), + ("v8.7a", Unstable(sym::aarch64_ver_target_feature)), // FEAT_VHE - ("vh", None), + ("vh", Stable), // tidy-alphabetical-end ]; @@ -170,197 +203,197 @@ const AARCH64_TIED_FEATURES: &[&[&str]] = &[ &["paca", "pacg"], // Together these represent `pauth` in LLVM ]; -const X86_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[ +const X86_ALLOWED_FEATURES: &[(&str, Stability)] = &[ // tidy-alphabetical-start - ("adx", None), - ("aes", None), - ("avx", None), - ("avx2", None), - ("avx512bf16", Some(sym::avx512_target_feature)), - ("avx512bitalg", Some(sym::avx512_target_feature)), - ("avx512bw", Some(sym::avx512_target_feature)), - ("avx512cd", Some(sym::avx512_target_feature)), - ("avx512dq", Some(sym::avx512_target_feature)), - ("avx512er", Some(sym::avx512_target_feature)), - ("avx512f", Some(sym::avx512_target_feature)), - ("avx512ifma", Some(sym::avx512_target_feature)), - ("avx512pf", Some(sym::avx512_target_feature)), - ("avx512vbmi", Some(sym::avx512_target_feature)), - ("avx512vbmi2", Some(sym::avx512_target_feature)), - ("avx512vl", Some(sym::avx512_target_feature)), - ("avx512vnni", Some(sym::avx512_target_feature)), - ("avx512vp2intersect", Some(sym::avx512_target_feature)), - ("avx512vpopcntdq", Some(sym::avx512_target_feature)), - ("bmi1", None), - ("bmi2", None), - ("cmpxchg16b", None), - ("ermsb", Some(sym::ermsb_target_feature)), - ("f16c", None), - ("fma", None), - ("fxsr", None), - ("gfni", Some(sym::avx512_target_feature)), - ("lzcnt", None), - ("movbe", None), - ("pclmulqdq", None), - ("popcnt", None), - ("rdrand", None), - ("rdseed", None), - ("rtm", Some(sym::rtm_target_feature)), - ("sha", None), - ("sse", None), - ("sse2", None), - ("sse3", None), - ("sse4.1", None), - ("sse4.2", None), - ("sse4a", Some(sym::sse4a_target_feature)), - ("ssse3", None), - ("tbm", Some(sym::tbm_target_feature)), - ("vaes", Some(sym::avx512_target_feature)), - ("vpclmulqdq", Some(sym::avx512_target_feature)), - ("xsave", None), - ("xsavec", None), - ("xsaveopt", None), - ("xsaves", None), + ("adx", Stable), + ("aes", Stable), + ("avx", Stable), + ("avx2", Stable), + ("avx512bf16", Unstable(sym::avx512_target_feature)), + ("avx512bitalg", Unstable(sym::avx512_target_feature)), + ("avx512bw", Unstable(sym::avx512_target_feature)), + ("avx512cd", Unstable(sym::avx512_target_feature)), + ("avx512dq", Unstable(sym::avx512_target_feature)), + ("avx512er", Unstable(sym::avx512_target_feature)), + ("avx512f", Unstable(sym::avx512_target_feature)), + ("avx512ifma", Unstable(sym::avx512_target_feature)), + ("avx512pf", Unstable(sym::avx512_target_feature)), + ("avx512vbmi", Unstable(sym::avx512_target_feature)), + ("avx512vbmi2", Unstable(sym::avx512_target_feature)), + ("avx512vl", Unstable(sym::avx512_target_feature)), + ("avx512vnni", Unstable(sym::avx512_target_feature)), + ("avx512vp2intersect", Unstable(sym::avx512_target_feature)), + ("avx512vpopcntdq", Unstable(sym::avx512_target_feature)), + ("bmi1", Stable), + ("bmi2", Stable), + ("cmpxchg16b", Stable), + ("ermsb", Unstable(sym::ermsb_target_feature)), + ("f16c", Stable), + ("fma", Stable), + ("fxsr", Stable), + ("gfni", Unstable(sym::avx512_target_feature)), + ("lzcnt", Stable), + ("movbe", Stable), + ("pclmulqdq", Stable), + ("popcnt", Stable), + ("rdrand", Stable), + ("rdseed", Stable), + ("rtm", Unstable(sym::rtm_target_feature)), + ("sha", Stable), + ("sse", Stable), + ("sse2", Stable), + ("sse3", Stable), + ("sse4.1", Stable), + ("sse4.2", Stable), + ("sse4a", Unstable(sym::sse4a_target_feature)), + ("ssse3", Stable), + ("tbm", Unstable(sym::tbm_target_feature)), + ("vaes", Unstable(sym::avx512_target_feature)), + ("vpclmulqdq", Unstable(sym::avx512_target_feature)), + ("xsave", Stable), + ("xsavec", Stable), + ("xsaveopt", Stable), + ("xsaves", Stable), // tidy-alphabetical-end ]; -const HEXAGON_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[ +const HEXAGON_ALLOWED_FEATURES: &[(&str, Stability)] = &[ // tidy-alphabetical-start - ("hvx", Some(sym::hexagon_target_feature)), - ("hvx-length128b", Some(sym::hexagon_target_feature)), + ("hvx", Unstable(sym::hexagon_target_feature)), + ("hvx-length128b", Unstable(sym::hexagon_target_feature)), // tidy-alphabetical-end ]; -const POWERPC_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[ +const POWERPC_ALLOWED_FEATURES: &[(&str, Stability)] = &[ // tidy-alphabetical-start - ("altivec", Some(sym::powerpc_target_feature)), - ("power10-vector", Some(sym::powerpc_target_feature)), - ("power8-altivec", Some(sym::powerpc_target_feature)), - ("power8-vector", Some(sym::powerpc_target_feature)), - ("power9-altivec", Some(sym::powerpc_target_feature)), - ("power9-vector", Some(sym::powerpc_target_feature)), - ("vsx", Some(sym::powerpc_target_feature)), + ("altivec", Unstable(sym::powerpc_target_feature)), + ("power10-vector", Unstable(sym::powerpc_target_feature)), + ("power8-altivec", Unstable(sym::powerpc_target_feature)), + ("power8-vector", Unstable(sym::powerpc_target_feature)), + ("power9-altivec", Unstable(sym::powerpc_target_feature)), + ("power9-vector", Unstable(sym::powerpc_target_feature)), + ("vsx", Unstable(sym::powerpc_target_feature)), // tidy-alphabetical-end ]; -const MIPS_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[ +const MIPS_ALLOWED_FEATURES: &[(&str, Stability)] = &[ // tidy-alphabetical-start - ("fp64", Some(sym::mips_target_feature)), - ("msa", Some(sym::mips_target_feature)), - ("virt", Some(sym::mips_target_feature)), + ("fp64", Unstable(sym::mips_target_feature)), + ("msa", Unstable(sym::mips_target_feature)), + ("virt", Unstable(sym::mips_target_feature)), // tidy-alphabetical-end ]; -const RISCV_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[ +const RISCV_ALLOWED_FEATURES: &[(&str, Stability)] = &[ // tidy-alphabetical-start - ("a", None), - ("c", None), - ("d", Some(sym::riscv_target_feature)), - ("e", Some(sym::riscv_target_feature)), - ("f", Some(sym::riscv_target_feature)), - ("m", None), - ("relax", Some(sym::riscv_target_feature)), - ("unaligned-scalar-mem", Some(sym::riscv_target_feature)), - ("v", Some(sym::riscv_target_feature)), - ("zba", None), - ("zbb", None), - ("zbc", None), - ("zbkb", None), - ("zbkc", None), - ("zbkx", None), - ("zbs", None), - ("zdinx", Some(sym::riscv_target_feature)), - ("zfh", Some(sym::riscv_target_feature)), - ("zfhmin", Some(sym::riscv_target_feature)), - ("zfinx", Some(sym::riscv_target_feature)), - ("zhinx", Some(sym::riscv_target_feature)), - ("zhinxmin", Some(sym::riscv_target_feature)), - ("zk", None), - ("zkn", None), - ("zknd", None), - ("zkne", None), - ("zknh", None), - ("zkr", None), - ("zks", None), - ("zksed", None), - ("zksh", None), - ("zkt", None), + ("a", Stable), + ("c", Stable), + ("d", Unstable(sym::riscv_target_feature)), + ("e", Unstable(sym::riscv_target_feature)), + ("f", Unstable(sym::riscv_target_feature)), + ("m", Stable), + ("relax", Unstable(sym::riscv_target_feature)), + ("unaligned-scalar-mem", Unstable(sym::riscv_target_feature)), + ("v", Unstable(sym::riscv_target_feature)), + ("zba", Stable), + ("zbb", Stable), + ("zbc", Stable), + ("zbkb", Stable), + ("zbkc", Stable), + ("zbkx", Stable), + ("zbs", Stable), + ("zdinx", Unstable(sym::riscv_target_feature)), + ("zfh", Unstable(sym::riscv_target_feature)), + ("zfhmin", Unstable(sym::riscv_target_feature)), + ("zfinx", Unstable(sym::riscv_target_feature)), + ("zhinx", Unstable(sym::riscv_target_feature)), + ("zhinxmin", Unstable(sym::riscv_target_feature)), + ("zk", Stable), + ("zkn", Stable), + ("zknd", Stable), + ("zkne", Stable), + ("zknh", Stable), + ("zkr", Stable), + ("zks", Stable), + ("zksed", Stable), + ("zksh", Stable), + ("zkt", Stable), // tidy-alphabetical-end ]; -const WASM_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[ +const WASM_ALLOWED_FEATURES: &[(&str, Stability)] = &[ // tidy-alphabetical-start - ("atomics", Some(sym::wasm_target_feature)), - ("bulk-memory", Some(sym::wasm_target_feature)), - ("exception-handling", Some(sym::wasm_target_feature)), - ("multivalue", Some(sym::wasm_target_feature)), - ("mutable-globals", Some(sym::wasm_target_feature)), - ("nontrapping-fptoint", Some(sym::wasm_target_feature)), - ("reference-types", Some(sym::wasm_target_feature)), - ("relaxed-simd", Some(sym::wasm_target_feature)), - ("sign-ext", Some(sym::wasm_target_feature)), - ("simd128", None), + ("atomics", Unstable(sym::wasm_target_feature)), + ("bulk-memory", Unstable(sym::wasm_target_feature)), + ("exception-handling", Unstable(sym::wasm_target_feature)), + ("multivalue", Unstable(sym::wasm_target_feature)), + ("mutable-globals", Unstable(sym::wasm_target_feature)), + ("nontrapping-fptoint", Unstable(sym::wasm_target_feature)), + ("reference-types", Unstable(sym::wasm_target_feature)), + ("relaxed-simd", Unstable(sym::wasm_target_feature)), + ("sign-ext", Unstable(sym::wasm_target_feature)), + ("simd128", Stable), // tidy-alphabetical-end ]; -const BPF_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[("alu32", Some(sym::bpf_target_feature))]; +const BPF_ALLOWED_FEATURES: &[(&str, Stability)] = &[("alu32", Unstable(sym::bpf_target_feature))]; -const CSKY_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[ +const CSKY_ALLOWED_FEATURES: &[(&str, Stability)] = &[ // tidy-alphabetical-start - ("10e60", Some(sym::csky_target_feature)), - ("2e3", Some(sym::csky_target_feature)), - ("3e3r1", Some(sym::csky_target_feature)), - ("3e3r2", Some(sym::csky_target_feature)), - ("3e3r3", Some(sym::csky_target_feature)), - ("3e7", Some(sym::csky_target_feature)), - ("7e10", Some(sym::csky_target_feature)), - ("cache", Some(sym::csky_target_feature)), - ("doloop", Some(sym::csky_target_feature)), - ("dsp1e2", Some(sym::csky_target_feature)), - ("dspe60", Some(sym::csky_target_feature)), - ("e1", Some(sym::csky_target_feature)), - ("e2", Some(sym::csky_target_feature)), - ("edsp", Some(sym::csky_target_feature)), - ("elrw", Some(sym::csky_target_feature)), - ("float1e2", Some(sym::csky_target_feature)), - ("float1e3", Some(sym::csky_target_feature)), - ("float3e4", Some(sym::csky_target_feature)), - ("float7e60", Some(sym::csky_target_feature)), - ("floate1", Some(sym::csky_target_feature)), - ("hard-tp", Some(sym::csky_target_feature)), - ("high-registers", Some(sym::csky_target_feature)), - ("hwdiv", Some(sym::csky_target_feature)), - ("mp", Some(sym::csky_target_feature)), - ("mp1e2", Some(sym::csky_target_feature)), - ("nvic", Some(sym::csky_target_feature)), - ("trust", Some(sym::csky_target_feature)), - ("vdsp2e60f", Some(sym::csky_target_feature)), - ("vdspv1", Some(sym::csky_target_feature)), - ("vdspv2", Some(sym::csky_target_feature)), + ("10e60", Unstable(sym::csky_target_feature)), + ("2e3", Unstable(sym::csky_target_feature)), + ("3e3r1", Unstable(sym::csky_target_feature)), + ("3e3r2", Unstable(sym::csky_target_feature)), + ("3e3r3", Unstable(sym::csky_target_feature)), + ("3e7", Unstable(sym::csky_target_feature)), + ("7e10", Unstable(sym::csky_target_feature)), + ("cache", Unstable(sym::csky_target_feature)), + ("doloop", Unstable(sym::csky_target_feature)), + ("dsp1e2", Unstable(sym::csky_target_feature)), + ("dspe60", Unstable(sym::csky_target_feature)), + ("e1", Unstable(sym::csky_target_feature)), + ("e2", Unstable(sym::csky_target_feature)), + ("edsp", Unstable(sym::csky_target_feature)), + ("elrw", Unstable(sym::csky_target_feature)), + ("float1e2", Unstable(sym::csky_target_feature)), + ("float1e3", Unstable(sym::csky_target_feature)), + ("float3e4", Unstable(sym::csky_target_feature)), + ("float7e60", Unstable(sym::csky_target_feature)), + ("floate1", Unstable(sym::csky_target_feature)), + ("hard-tp", Unstable(sym::csky_target_feature)), + ("high-registers", Unstable(sym::csky_target_feature)), + ("hwdiv", Unstable(sym::csky_target_feature)), + ("mp", Unstable(sym::csky_target_feature)), + ("mp1e2", Unstable(sym::csky_target_feature)), + ("nvic", Unstable(sym::csky_target_feature)), + ("trust", Unstable(sym::csky_target_feature)), + ("vdsp2e60f", Unstable(sym::csky_target_feature)), + ("vdspv1", Unstable(sym::csky_target_feature)), + ("vdspv2", Unstable(sym::csky_target_feature)), // tidy-alphabetical-end //fpu // tidy-alphabetical-start - ("fdivdu", Some(sym::csky_target_feature)), - ("fpuv2_df", Some(sym::csky_target_feature)), - ("fpuv2_sf", Some(sym::csky_target_feature)), - ("fpuv3_df", Some(sym::csky_target_feature)), - ("fpuv3_hf", Some(sym::csky_target_feature)), - ("fpuv3_hi", Some(sym::csky_target_feature)), - ("fpuv3_sf", Some(sym::csky_target_feature)), - ("hard-float", Some(sym::csky_target_feature)), - ("hard-float-abi", Some(sym::csky_target_feature)), + ("fdivdu", Unstable(sym::csky_target_feature)), + ("fpuv2_df", Unstable(sym::csky_target_feature)), + ("fpuv2_sf", Unstable(sym::csky_target_feature)), + ("fpuv3_df", Unstable(sym::csky_target_feature)), + ("fpuv3_hf", Unstable(sym::csky_target_feature)), + ("fpuv3_hi", Unstable(sym::csky_target_feature)), + ("fpuv3_sf", Unstable(sym::csky_target_feature)), + ("hard-float", Unstable(sym::csky_target_feature)), + ("hard-float-abi", Unstable(sym::csky_target_feature)), // tidy-alphabetical-end ]; -const LOONGARCH_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[ +const LOONGARCH_ALLOWED_FEATURES: &[(&str, Stability)] = &[ // tidy-alphabetical-start - ("d", Some(sym::loongarch_target_feature)), - ("f", Some(sym::loongarch_target_feature)), - ("lasx", Some(sym::loongarch_target_feature)), - ("lbt", Some(sym::loongarch_target_feature)), - ("lsx", Some(sym::loongarch_target_feature)), - ("lvz", Some(sym::loongarch_target_feature)), - ("ual", Some(sym::loongarch_target_feature)), + ("d", Unstable(sym::loongarch_target_feature)), + ("f", Unstable(sym::loongarch_target_feature)), + ("lasx", Unstable(sym::loongarch_target_feature)), + ("lbt", Unstable(sym::loongarch_target_feature)), + ("lsx", Unstable(sym::loongarch_target_feature)), + ("lvz", Unstable(sym::loongarch_target_feature)), + ("ual", Unstable(sym::loongarch_target_feature)), // tidy-alphabetical-end ]; @@ -368,7 +401,7 @@ const LOONGARCH_ALLOWED_FEATURES: &[(&str, Option<Symbol>)] = &[ /// primitives may be documented. /// /// IMPORTANT: If you're adding another feature list above, make sure to add it to this iterator! -pub fn all_known_features() -> impl Iterator<Item = (&'static str, Option<Symbol>)> { +pub fn all_known_features() -> impl Iterator<Item = (&'static str, Stability)> { std::iter::empty() .chain(ARM_ALLOWED_FEATURES.iter()) .chain(AARCH64_ALLOWED_FEATURES.iter()) @@ -384,7 +417,7 @@ pub fn all_known_features() -> impl Iterator<Item = (&'static str, Option<Symbol .cloned() } -pub fn supported_target_features(sess: &Session) -> &'static [(&'static str, Option<Symbol>)] { +pub fn supported_target_features(sess: &Session) -> &'static [(&'static str, Stability)] { match &*sess.target.arch { "arm" => ARM_ALLOWED_FEATURES, "aarch64" => AARCH64_ALLOWED_FEATURES, @@ -529,11 +562,11 @@ pub(crate) fn provide(providers: &mut Providers) { 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() + all_known_features().map(|(a, b)| (a.to_string(), b.as_feature_name())).collect() } else { supported_target_features(tcx.sess) .iter() - .map(|&(a, b)| (a.to_string(), b)) + .map(|&(a, b)| (a.to_string(), b.as_feature_name())) .collect() } }, diff --git a/compiler/rustc_const_eval/src/interpret/discriminant.rs b/compiler/rustc_const_eval/src/interpret/discriminant.rs index fd173670374..d9f583c1d1f 100644 --- a/compiler/rustc_const_eval/src/interpret/discriminant.rs +++ b/compiler/rustc_const_eval/src/interpret/discriminant.rs @@ -119,7 +119,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { if matches!(ty.kind(), ty::Adt(def, ..) if def.variants().is_empty()) { throw_ub!(UninhabitedEnumVariantRead(index)) } - // For consisteny with `write_discriminant`, and to make sure that + // For consistency with `write_discriminant`, and to make sure that // `project_downcast` cannot fail due to strange layouts, we declare immediate UB // for uninhabited variants. if op.layout().for_variant(self, index).abi.is_uninhabited() { @@ -236,7 +236,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> { variant } }; - // For consisteny with `write_discriminant`, and to make sure that `project_downcast` cannot fail due to strange layouts, we declare immediate UB for uninhabited variants. + // For consistency with `write_discriminant`, and to make sure that `project_downcast` cannot fail due to strange layouts, we declare immediate UB for uninhabited variants. if op.layout().for_variant(self, index).abi.is_uninhabited() { throw_ub!(UninhabitedEnumVariantRead(index)) } diff --git a/compiler/rustc_data_structures/src/sharded.rs b/compiler/rustc_data_structures/src/sharded.rs index 29516fffd6a..639f05c9e52 100644 --- a/compiler/rustc_data_structures/src/sharded.rs +++ b/compiler/rustc_data_structures/src/sharded.rs @@ -79,7 +79,7 @@ impl<T> Sharded<T> { pub fn lock_shard_by_value<K: Hash + ?Sized>(&self, _val: &K) -> LockGuard<'_, T> { match self { Self::Single(single) => { - // Syncronization is disabled so use the `lock_assume_no_sync` method optimized + // Synchronization is disabled so use the `lock_assume_no_sync` method optimized // for that case. // SAFETY: We know `is_dyn_thread_safe` was false when creating the lock thus @@ -102,7 +102,7 @@ impl<T> Sharded<T> { pub fn lock_shard_by_index(&self, _i: usize) -> LockGuard<'_, T> { match self { Self::Single(single) => { - // Syncronization is disabled so use the `lock_assume_no_sync` method optimized + // Synchronization is disabled so use the `lock_assume_no_sync` method optimized // for that case. // SAFETY: We know `is_dyn_thread_safe` was false when creating the lock thus @@ -111,7 +111,7 @@ impl<T> Sharded<T> { } #[cfg(parallel_compiler)] Self::Shards(shards) => { - // Syncronization is enabled so use the `lock_assume_sync` method optimized + // Synchronization is enabled so use the `lock_assume_sync` method optimized // for that case. // SAFETY (get_unchecked): The index gets ANDed with the shard mask, ensuring it is diff --git a/compiler/rustc_data_structures/src/sync/lock.rs b/compiler/rustc_data_structures/src/sync/lock.rs index 339aebbf81a..040a8aa6b63 100644 --- a/compiler/rustc_data_structures/src/sync/lock.rs +++ b/compiler/rustc_data_structures/src/sync/lock.rs @@ -38,7 +38,7 @@ mod maybe_sync { lock: &'a Lock<T>, marker: PhantomData<&'a mut T>, - /// The syncronization mode of the lock. This is explicitly passed to let LLVM relate it + /// The synchronization mode of the lock. This is explicitly passed to let LLVM relate it /// to the original lock operation. mode: Mode, } @@ -142,7 +142,7 @@ mod maybe_sync { .then(|| LockGuard { lock: self, marker: PhantomData, mode }) } - /// This acquires the lock assuming syncronization is in a specific mode. + /// This acquires the lock assuming synchronization is in a specific mode. /// /// Safety /// This method must only be called with `Mode::Sync` if `might_be_dyn_thread_safe` was diff --git a/compiler/rustc_driver_impl/src/lib.rs b/compiler/rustc_driver_impl/src/lib.rs index 84ae45d6a2b..17a53aafe9a 100644 --- a/compiler/rustc_driver_impl/src/lib.rs +++ b/compiler/rustc_driver_impl/src/lib.rs @@ -496,10 +496,6 @@ fn run_compiler( linker.link()? } - if sess.opts.unstable_opts.perf_stats { - sess.print_perf_stats(); - } - if sess.opts.unstable_opts.print_fuel.is_some() { eprintln!( "Fuel used by {}: {}", @@ -1524,14 +1520,14 @@ fn report_ice( /// This allows tools to enable rust logging without having to magically match rustc's /// tracing crate version. pub fn init_rustc_env_logger(handler: &EarlyErrorHandler) { - init_env_logger(handler, "RUSTC_LOG"); + init_logger(handler, rustc_log::LoggerConfig::from_env("RUSTC_LOG")); } /// This allows tools to enable rust logging without having to magically match rustc's -/// tracing crate version. In contrast to `init_rustc_env_logger` it allows you to choose an env var -/// other than `RUSTC_LOG`. -pub fn init_env_logger(handler: &EarlyErrorHandler, env: &str) { - if let Err(error) = rustc_log::init_env_logger(env) { +/// tracing crate version. In contrast to `init_rustc_env_logger` it allows you to choose +/// the values directly rather than having to set an environment variable. +pub fn init_logger(handler: &EarlyErrorHandler, cfg: rustc_log::LoggerConfig) { + if let Err(error) = rustc_log::init_logger(cfg) { handler.early_error(error.to_string()); } } diff --git a/compiler/rustc_errors/src/lib.rs b/compiler/rustc_errors/src/lib.rs index dd462cc6486..8ae95cbeed2 100644 --- a/compiler/rustc_errors/src/lib.rs +++ b/compiler/rustc_errors/src/lib.rs @@ -10,7 +10,6 @@ #![feature(if_let_guard)] #![feature(let_chains)] #![feature(never_type)] -#![feature(result_option_inspect)] #![feature(rustc_attrs)] #![feature(yeet_expr)] #![feature(try_blocks)] diff --git a/compiler/rustc_errors/src/markdown/parse.rs b/compiler/rustc_errors/src/markdown/parse.rs index d3a08da6283..67e4963fddf 100644 --- a/compiler/rustc_errors/src/markdown/parse.rs +++ b/compiler/rustc_errors/src/markdown/parse.rs @@ -329,7 +329,7 @@ fn parse_with_end_pat<'a>( end_sep: &[u8], ignore_esc: bool, ) -> Option<(&'a [u8], &'a [u8])> { - // Find positions that start with the end seperator + // Find positions that start with the end separator for idx in (0..buf.len()).filter(|idx| buf[*idx..].starts_with(end_sep)) { if !ignore_esc && idx > 0 && buf[idx - 1] == b'\\' { continue; diff --git a/compiler/rustc_hir_analysis/src/astconv/bounds.rs b/compiler/rustc_hir_analysis/src/astconv/bounds.rs index 3e700f2da86..cb9259998e3 100644 --- a/compiler/rustc_hir_analysis/src/astconv/bounds.rs +++ b/compiler/rustc_hir_analysis/src/astconv/bounds.rs @@ -350,7 +350,7 @@ impl<'tcx> dyn AstConv<'tcx> + '_ { let args = candidate.skip_binder().args.extend_to(tcx, assoc_item.def_id, |param, _| { let subst = match param.kind { - ty::GenericParamDefKind::Lifetime => ty::Region::new_late_bound( + ty::GenericParamDefKind::Lifetime => ty::Region::new_bound( tcx, ty::INNERMOST, ty::BoundRegion { diff --git a/compiler/rustc_hir_analysis/src/astconv/mod.rs b/compiler/rustc_hir_analysis/src/astconv/mod.rs index 2fcb45ef8aa..8126b451181 100644 --- a/compiler/rustc_hir_analysis/src/astconv/mod.rs +++ b/compiler/rustc_hir_analysis/src/astconv/mod.rs @@ -250,7 +250,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { var: ty::BoundVar::from_u32(index), kind: ty::BrNamed(def_id, name), }; - ty::Region::new_late_bound(tcx, debruijn, br) + ty::Region::new_bound(tcx, debruijn, br) } Some(rbv::ResolvedArg::EarlyBound(def_id)) => { @@ -258,12 +258,12 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { let item_def_id = tcx.hir().ty_param_owner(def_id.expect_local()); let generics = tcx.generics_of(item_def_id); let index = generics.param_def_id_to_index[&def_id]; - ty::Region::new_early_bound(tcx, ty::EarlyBoundRegion { def_id, index, name }) + ty::Region::new_early_param(tcx, ty::EarlyParamRegion { def_id, index, name }) } Some(rbv::ResolvedArg::Free(scope, id)) => { let name = lifetime_name(id.expect_local()); - ty::Region::new_free(tcx, scope, ty::BrNamed(id, name)) + ty::Region::new_late_param(tcx, scope, ty::BrNamed(id, name)) // (*) -- not late-bound, won't change } @@ -1622,7 +1622,9 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { } fn fold_region(&mut self, r: ty::Region<'tcx>) -> ty::Region<'tcx> { - if r.is_late_bound() { self.tcx.lifetimes.re_erased } else { r } + // FIXME(@lcnr): This is broken, erasing bound regions + // impacts selection as it results in different types. + if r.is_bound() { self.tcx.lifetimes.re_erased } else { r } } fn fold_ty(&mut self, ty: Ty<'tcx>) -> Ty<'tcx> { @@ -2845,6 +2847,7 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { /// provided, if they provided one, and otherwise search the supertypes of trait bounds /// for region bounds. It may be that we can derive no bound at all, in which case /// we return `None`. + #[instrument(level = "debug", skip(self, span), ret)] fn compute_object_lifetime_bound( &self, span: Span, @@ -2853,8 +2856,6 @@ impl<'o, 'tcx> dyn AstConv<'tcx> + 'o { { let tcx = self.tcx(); - debug!("compute_opt_region_bound(existential_predicates={:?})", existential_predicates); - // No explicit region bound specified. Therefore, examine trait // bounds and see if we can derive region bounds from those. let derived_region_bounds = object_region_bounds(tcx, existential_predicates); diff --git a/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs b/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs index 857515f971a..f026f78cc2b 100644 --- a/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs +++ b/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs @@ -532,8 +532,8 @@ impl<'tcx> TypeFolder<TyCtxt<'tcx>> for RemapLateBound<'_, 'tcx> { } fn fold_region(&mut self, r: ty::Region<'tcx>) -> ty::Region<'tcx> { - if let ty::ReFree(fr) = *r { - ty::Region::new_free( + if let ty::ReLateParam(fr) = *r { + ty::Region::new_late_param( self.tcx, fr.scope, self.mapping.get(&fr.bound_region).copied().unwrap_or(fr.bound_region), @@ -1078,20 +1078,20 @@ impl<'tcx> ty::FallibleTypeFolder<TyCtxt<'tcx>> for RemapHiddenTyRegions<'tcx> { region: ty::Region<'tcx>, ) -> Result<ty::Region<'tcx>, Self::Error> { match region.kind() { - // Remap all free regions, which correspond to late-bound regions in the function. - ty::ReFree(_) => {} + // Remap late-bound regions from the function. + ty::ReLateParam(_) => {} // Remap early-bound regions as long as they don't come from the `impl` itself, // in which case we don't really need to renumber them. - ty::ReEarlyBound(ebr) if self.tcx.parent(ebr.def_id) != self.impl_def_id => {} + ty::ReEarlyParam(ebr) if self.tcx.parent(ebr.def_id) != self.impl_def_id => {} _ => return Ok(region), } let e = if let Some(region) = self.map.get(®ion) { - if let ty::ReEarlyBound(e) = region.kind() { e } else { bug!() } + if let ty::ReEarlyParam(e) = region.kind() { e } else { bug!() } } else { let guar = match region.kind() { - ty::ReEarlyBound(ty::EarlyBoundRegion { def_id, .. }) - | ty::ReFree(ty::FreeRegion { + ty::ReEarlyParam(ty::EarlyParamRegion { def_id, .. }) + | ty::ReLateParam(ty::LateParamRegion { bound_region: ty::BoundRegionKind::BrNamed(def_id, _), .. }) => { @@ -1119,9 +1119,9 @@ impl<'tcx> ty::FallibleTypeFolder<TyCtxt<'tcx>> for RemapHiddenTyRegions<'tcx> { return Err(guar); }; - Ok(ty::Region::new_early_bound( + Ok(ty::Region::new_early_param( self.tcx, - ty::EarlyBoundRegion { + ty::EarlyParamRegion { def_id: e.def_id, name: e.name, index: (e.index as usize - self.num_trait_args + self.num_impl_args) as u32, @@ -2345,7 +2345,7 @@ fn param_env_with_gat_bounds<'tcx>( let kind = ty::BoundRegionKind::BrNamed(param.def_id, param.name); let bound_var = ty::BoundVariableKind::Region(kind); bound_vars.push(bound_var); - ty::Region::new_late_bound( + ty::Region::new_bound( tcx, ty::INNERMOST, ty::BoundRegion { diff --git a/compiler/rustc_hir_analysis/src/check/dropck.rs b/compiler/rustc_hir_analysis/src/check/dropck.rs index dda3f742569..0a05c1039b6 100644 --- a/compiler/rustc_hir_analysis/src/check/dropck.rs +++ b/compiler/rustc_hir_analysis/src/check/dropck.rs @@ -81,8 +81,7 @@ fn ensure_drop_params_and_item_params_correspond<'tcx>( self_type_did: DefId, adt_to_impl_args: GenericArgsRef<'tcx>, ) -> Result<(), ErrorGuaranteed> { - let Err(arg) = tcx.uses_unique_generic_params(adt_to_impl_args, CheckRegions::OnlyEarlyBound) - else { + let Err(arg) = tcx.uses_unique_generic_params(adt_to_impl_args, CheckRegions::OnlyParam) else { return Ok(()); }; diff --git a/compiler/rustc_hir_analysis/src/check/intrinsic.rs b/compiler/rustc_hir_analysis/src/check/intrinsic.rs index c61719c1fd2..eb009b9368f 100644 --- a/compiler/rustc_hir_analysis/src/check/intrinsic.rs +++ b/compiler/rustc_hir_analysis/src/check/intrinsic.rs @@ -143,12 +143,12 @@ pub fn check_intrinsic_type(tcx: TyCtxt<'_>, it: &hir::ForeignItem<'_>) { ]); let mk_va_list_ty = |mutbl| { tcx.lang_items().va_list().map(|did| { - let region = ty::Region::new_late_bound( + let region = ty::Region::new_bound( tcx, ty::INNERMOST, ty::BoundRegion { var: ty::BoundVar::from_u32(0), kind: ty::BrAnon }, ); - let env_region = ty::Region::new_late_bound( + let env_region = ty::Region::new_bound( tcx, ty::INNERMOST, ty::BoundRegion { var: ty::BoundVar::from_u32(1), kind: ty::BrEnv }, @@ -411,7 +411,7 @@ pub fn check_intrinsic_type(tcx: TyCtxt<'_>, it: &hir::ForeignItem<'_>) { 1, vec![Ty::new_imm_ref( tcx, - ty::Region::new_late_bound(tcx, ty::INNERMOST, br), + ty::Region::new_bound(tcx, ty::INNERMOST, br), param(0), )], Ty::new_projection(tcx, discriminant_def_id, tcx.mk_args(&[param(0).into()])), @@ -465,11 +465,8 @@ pub fn check_intrinsic_type(tcx: TyCtxt<'_>, it: &hir::ForeignItem<'_>) { sym::raw_eq => { let br = ty::BoundRegion { var: ty::BoundVar::from_u32(0), kind: ty::BrAnon }; - let param_ty = Ty::new_imm_ref( - tcx, - ty::Region::new_late_bound(tcx, ty::INNERMOST, br), - param(0), - ); + let param_ty = + Ty::new_imm_ref(tcx, ty::Region::new_bound(tcx, ty::INNERMOST, br), param(0)); (1, vec![param_ty; 2], tcx.types.bool) } diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs index eb4491b89bf..d7b50d127cd 100644 --- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs +++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs @@ -595,9 +595,9 @@ fn gather_gat_bounds<'tcx, T: TypeFoldable<TyCtxt<'tcx>>>( // Same for the region. In our example, 'a corresponds // to the 'me parameter. let region_param = gat_generics.param_at(*region_a_idx, tcx); - let region_param = ty::Region::new_early_bound( + let region_param = ty::Region::new_early_param( tcx, - ty::EarlyBoundRegion { + ty::EarlyParamRegion { def_id: region_param.def_id, index: region_param.index, name: region_param.name, @@ -628,9 +628,9 @@ fn gather_gat_bounds<'tcx, T: TypeFoldable<TyCtxt<'tcx>>>( debug!("required clause: {region_a} must outlive {region_b}"); // Translate into the generic parameters of the GAT. let region_a_param = gat_generics.param_at(*region_a_idx, tcx); - let region_a_param = ty::Region::new_early_bound( + let region_a_param = ty::Region::new_early_param( tcx, - ty::EarlyBoundRegion { + ty::EarlyParamRegion { def_id: region_a_param.def_id, index: region_a_param.index, name: region_a_param.name, @@ -638,9 +638,9 @@ fn gather_gat_bounds<'tcx, T: TypeFoldable<TyCtxt<'tcx>>>( ); // Same for the region. let region_b_param = gat_generics.param_at(*region_b_idx, tcx); - let region_b_param = ty::Region::new_early_bound( + let region_b_param = ty::Region::new_early_param( tcx, - ty::EarlyBoundRegion { + ty::EarlyParamRegion { def_id: region_b_param.def_id, index: region_b_param.index, name: region_b_param.name, @@ -763,7 +763,7 @@ impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for GATSubstCollector<'tcx> { ty::Alias(ty::Projection, p) if p.def_id == self.gat => { for (idx, subst) in p.args.iter().enumerate() { match subst.unpack() { - GenericArgKind::Lifetime(lt) if !lt.is_late_bound() => { + GenericArgKind::Lifetime(lt) if !lt.is_bound() => { self.regions.insert((lt, idx)); } GenericArgKind::Type(t) => { diff --git a/compiler/rustc_hir_analysis/src/coherence/builtin.rs b/compiler/rustc_hir_analysis/src/coherence/builtin.rs index e5e192e0079..f277badf275 100644 --- a/compiler/rustc_hir_analysis/src/coherence/builtin.rs +++ b/compiler/rustc_hir_analysis/src/coherence/builtin.rs @@ -550,7 +550,7 @@ fn infringing_fields_error( .entry((ty.clone(), predicate.clone())) .or_default() .push(origin.span()); - if let ty::RegionKind::ReEarlyBound(ebr) = *b + if let ty::RegionKind::ReEarlyParam(ebr) = *b && ebr.has_name() { bounds.push((b.to_string(), a.to_string(), None)); diff --git a/compiler/rustc_hir_analysis/src/coherence/orphan.rs b/compiler/rustc_hir_analysis/src/coherence/orphan.rs index 7eeb7837467..8d87cb57b90 100644 --- a/compiler/rustc_hir_analysis/src/coherence/orphan.rs +++ b/compiler/rustc_hir_analysis/src/coherence/orphan.rs @@ -452,7 +452,13 @@ fn lint_auto_trait_impl<'tcx>( trait_ref: ty::TraitRef<'tcx>, impl_def_id: LocalDefId, ) { - assert_eq!(trait_ref.args.len(), 1); + if trait_ref.args.len() != 1 { + tcx.sess.diagnostic().delay_span_bug( + tcx.def_span(impl_def_id), + "auto traits cannot have generic parameters", + ); + return; + } let self_ty = trait_ref.self_ty(); let (self_type_did, args) = match self_ty.kind() { ty::Adt(def, args) => (def.did(), args), diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs index 9636c614446..1e75b863165 100644 --- a/compiler/rustc_hir_analysis/src/collect.rs +++ b/compiler/rustc_hir_analysis/src/collect.rs @@ -443,7 +443,7 @@ impl<'tcx> AstConv<'tcx> for ItemCtxt<'tcx> { self.tcx.replace_late_bound_regions_uncached( poly_trait_ref, |_| { - ty::Region::new_early_bound(self.tcx, ty::EarlyBoundRegion { + ty::Region::new_early_param(self.tcx, ty::EarlyParamRegion { def_id: item_def_id, index: 0, name: Symbol::intern(<_name), diff --git a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs index 104da581e01..68d040d5846 100644 --- a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs @@ -362,10 +362,10 @@ fn compute_bidirectional_outlives_predicates<'tcx>( ) { for param in opaque_own_params { let orig_lifetime = tcx.map_rpit_lifetime_to_fn_lifetime(param.def_id.expect_local()); - if let ty::ReEarlyBound(..) = *orig_lifetime { - let dup_lifetime = ty::Region::new_early_bound( + if let ty::ReEarlyParam(..) = *orig_lifetime { + let dup_lifetime = ty::Region::new_early_param( tcx, - ty::EarlyBoundRegion { def_id: param.def_id, index: param.index, name: param.name }, + ty::EarlyParamRegion { def_id: param.def_id, index: param.index, name: param.name }, ); let span = tcx.def_span(param.def_id); predicates.push(( diff --git a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs index 6424d1c7931..53efc2c6e82 100644 --- a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs +++ b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs @@ -1848,8 +1848,8 @@ impl<'a, 'tcx> BoundVarContext<'a, 'tcx> { } } + #[instrument(level = "debug", skip(self))] fn resolve_object_lifetime_default(&mut self, lifetime_ref: &'tcx hir::Lifetime) { - debug!("resolve_object_lifetime_default(lifetime_ref={:?})", lifetime_ref); let mut late_depth = 0; let mut scope = self.scope; let lifetime = loop { @@ -2012,7 +2012,7 @@ fn is_late_bound_map( fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<!> { debug!("r={:?}", r.kind()); - if let ty::RegionKind::ReEarlyBound(region) = r.kind() { + if let ty::RegionKind::ReEarlyParam(region) = r.kind() { self.arg_is_constrained[region.index as usize] = true; } diff --git a/compiler/rustc_hir_analysis/src/constrained_generic_params.rs b/compiler/rustc_hir_analysis/src/constrained_generic_params.rs index ed5e9dd2b5a..65d1ffa40e2 100644 --- a/compiler/rustc_hir_analysis/src/constrained_generic_params.rs +++ b/compiler/rustc_hir_analysis/src/constrained_generic_params.rs @@ -13,8 +13,8 @@ impl From<ty::ParamTy> for Parameter { } } -impl From<ty::EarlyBoundRegion> for Parameter { - fn from(param: ty::EarlyBoundRegion) -> Self { +impl From<ty::EarlyParamRegion> for Parameter { + fn from(param: ty::EarlyParamRegion) -> Self { Parameter(param.index) } } @@ -73,7 +73,7 @@ impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for ParameterCollector { } fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<Self::BreakTy> { - if let ty::ReEarlyBound(data) = *r { + if let ty::ReEarlyParam(data) = *r { self.parameters.push(Parameter::from(data)); } ControlFlow::Continue(()) diff --git a/compiler/rustc_hir_analysis/src/hir_wf_check.rs b/compiler/rustc_hir_analysis/src/hir_wf_check.rs index ca7679cfba0..d5fb4340e1c 100644 --- a/compiler/rustc_hir_analysis/src/hir_wf_check.rs +++ b/compiler/rustc_hir_analysis/src/hir_wf_check.rs @@ -196,6 +196,7 @@ impl<'tcx> TypeFolder<TyCtxt<'tcx>> for EraseAllBoundRegions<'tcx> { self.tcx } fn fold_region(&mut self, r: Region<'tcx>) -> Region<'tcx> { - if r.is_late_bound() { self.tcx.lifetimes.re_erased } else { r } + // FIXME(@lcnr): only erase escaping bound regions! + if r.is_bound() { self.tcx.lifetimes.re_erased } else { r } } } diff --git a/compiler/rustc_hir_analysis/src/outlives/utils.rs b/compiler/rustc_hir_analysis/src/outlives/utils.rs index a6410c944f7..218f658b061 100644 --- a/compiler/rustc_hir_analysis/src/outlives/utils.rs +++ b/compiler/rustc_hir_analysis/src/outlives/utils.rs @@ -146,11 +146,11 @@ fn is_free_region(region: Region<'_>) -> bool { // These correspond to `T: 'a` relationships: // // struct Foo<'a, T> { - // field: &'a T, // this would generate a ReEarlyBound referencing `'a` + // field: &'a T, // this would generate a ReEarlyParam referencing `'a` // } // // We care about these, so fall through. - ty::ReEarlyBound(_) => true, + ty::ReEarlyParam(_) => true, // These correspond to `T: 'static` relationships which can be // rather surprising. @@ -167,13 +167,13 @@ fn is_free_region(region: Region<'_>) -> bool { // } // // The type above might generate a `T: 'b` bound, but we can - // ignore it. We can't put it on the struct header anyway. - ty::ReLateBound(..) => false, + // ignore it. We can't name this lifetime pn the struct header anyway. + ty::ReBound(..) => false, ty::ReError(_) => false, // These regions don't appear in types from type declarations: - ty::ReErased | ty::ReVar(..) | ty::RePlaceholder(..) | ty::ReFree(..) => { + ty::ReErased | ty::ReVar(..) | ty::RePlaceholder(..) | ty::ReLateParam(..) => { bug!("unexpected region in outlives inference: {:?}", region); } } diff --git a/compiler/rustc_hir_analysis/src/variance/constraints.rs b/compiler/rustc_hir_analysis/src/variance/constraints.rs index 5f8b1ace68b..f09594cbbc6 100644 --- a/compiler/rustc_hir_analysis/src/variance/constraints.rs +++ b/compiler/rustc_hir_analysis/src/variance/constraints.rs @@ -413,20 +413,22 @@ impl<'a, 'tcx> ConstraintContext<'a, 'tcx> { variance: VarianceTermPtr<'a>, ) { match *region { - ty::ReEarlyBound(ref data) => { + ty::ReEarlyParam(ref data) => { self.add_constraint(current, data.index, variance); } ty::ReStatic => {} - ty::ReLateBound(..) => { - // Late-bound regions do not get substituted the same - // way early-bound regions do, so we skip them here. + ty::ReBound(..) => { + // Either a higher-ranked region inside of a type or a + // late-bound function parameter. + // + // We do not compute constraints for either of these. } ty::ReError(_) => {} - ty::ReFree(..) | ty::ReVar(..) | ty::RePlaceholder(..) | ty::ReErased => { + ty::ReLateParam(..) | ty::ReVar(..) | ty::RePlaceholder(..) | ty::ReErased => { // We don't expect to see anything but 'static or bound // regions when visiting member types or method types. bug!( diff --git a/compiler/rustc_hir_analysis/src/variance/mod.rs b/compiler/rustc_hir_analysis/src/variance/mod.rs index 9fb39a0e93b..410706110c9 100644 --- a/compiler/rustc_hir_analysis/src/variance/mod.rs +++ b/compiler/rustc_hir_analysis/src/variance/mod.rs @@ -106,7 +106,7 @@ fn variance_of_opaque(tcx: TyCtxt<'_>, item_def_id: LocalDefId) -> &[ty::Varianc impl<'tcx> ty::TypeVisitor<TyCtxt<'tcx>> for OpaqueTypeLifetimeCollector<'tcx> { #[instrument(level = "trace", skip(self), ret)] fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<Self::BreakTy> { - if let ty::RegionKind::ReEarlyBound(ebr) = r.kind() { + if let ty::RegionKind::ReEarlyParam(ebr) = r.kind() { self.variances[ebr.index as usize] = ty::Invariant; } ControlFlow::Continue(()) diff --git a/compiler/rustc_hir_typeck/src/check.rs b/compiler/rustc_hir_typeck/src/check.rs index b8a265d4971..1edc3efbc77 100644 --- a/compiler/rustc_hir_typeck/src/check.rs +++ b/compiler/rustc_hir_typeck/src/check.rs @@ -214,7 +214,7 @@ fn check_panic_info_fn(tcx: TyCtxt<'_>, fn_id: LocalDefId, fn_sig: ty::FnSig<'_> // build type `for<'a, 'b> fn(&'a PanicInfo<'b>) -> !` let panic_info_ty = tcx.type_of(panic_info_did).instantiate( tcx, - &[ty::GenericArg::from(ty::Region::new_late_bound( + &[ty::GenericArg::from(ty::Region::new_bound( tcx, ty::INNERMOST, ty::BoundRegion { var: ty::BoundVar::from_u32(1), kind: ty::BrAnon }, @@ -222,7 +222,7 @@ fn check_panic_info_fn(tcx: TyCtxt<'_>, fn_id: LocalDefId, fn_sig: ty::FnSig<'_> ); let panic_info_ref_ty = Ty::new_imm_ref( tcx, - ty::Region::new_late_bound( + ty::Region::new_bound( tcx, ty::INNERMOST, ty::BoundRegion { var: ty::BoundVar::from_u32(0), kind: ty::BrAnon }, diff --git a/compiler/rustc_hir_typeck/src/closure.rs b/compiler/rustc_hir_typeck/src/closure.rs index a70ead8e57d..7807ff6547d 100644 --- a/compiler/rustc_hir_typeck/src/closure.rs +++ b/compiler/rustc_hir_typeck/src/closure.rs @@ -7,7 +7,7 @@ use rustc_hir as hir; use rustc_hir::lang_items::LangItem; use rustc_hir_analysis::astconv::AstConv; use rustc_infer::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind}; -use rustc_infer::infer::{DefineOpaqueTypes, LateBoundRegionConversionTime}; +use rustc_infer::infer::{BoundRegionConversionTime, DefineOpaqueTypes}; use rustc_infer::infer::{InferOk, InferResult}; use rustc_macros::{TypeFoldable, TypeVisitable}; use rustc_middle::ty::visit::{TypeVisitable, TypeVisitableExt}; @@ -558,7 +558,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // Instantiate (this part of..) S to S', i.e., with fresh variables. self.instantiate_binder_with_fresh_vars( hir_ty.span, - LateBoundRegionConversionTime::FnCall, + BoundRegionConversionTime::FnCall, // (*) binder moved to here supplied_sig.inputs().rebind(supplied_ty), ) @@ -583,7 +583,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let supplied_output_ty = self.instantiate_binder_with_fresh_vars( decl.output.span(), - LateBoundRegionConversionTime::FnCall, + BoundRegionConversionTime::FnCall, supplied_sig.output(), ); let cause = &self.misc(decl.output.span()); diff --git a/compiler/rustc_hir_typeck/src/demand.rs b/compiler/rustc_hir_typeck/src/demand.rs index acaa3e02f09..77d6183f862 100644 --- a/compiler/rustc_hir_typeck/src/demand.rs +++ b/compiler/rustc_hir_typeck/src/demand.rs @@ -34,6 +34,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // Use `||` to give these suggestions a precedence let suggested = self.suggest_missing_parentheses(err, expr) + || self.suggest_missing_unwrap_expect(err, expr, expected, expr_ty) || self.suggest_remove_last_method_call(err, expr, expected) || self.suggest_associated_const(err, expr, expected) || self.suggest_deref_ref_or_into(err, expr, expected, expr_ty, expected_ty_expr) @@ -49,8 +50,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { || self.suggest_into(err, expr, expr_ty, expected) || self.suggest_floating_point_literal(err, expr, expected) || self.suggest_null_ptr_for_literal_zero_given_to_ptr_arg(err, expr, expected) - || self.suggest_coercing_result_via_try_operator(err, expr, expected, expr_ty) - || self.suggest_missing_unwrap_expect(err, expr, expected, expr_ty); + || self.suggest_coercing_result_via_try_operator(err, expr, expected, expr_ty); if !suggested { self.note_source_of_type_mismatch_constraint( diff --git a/compiler/rustc_hir_typeck/src/expr.rs b/compiler/rustc_hir_typeck/src/expr.rs index 9f439a2b32a..a6f78dc8ab5 100644 --- a/compiler/rustc_hir_typeck/src/expr.rs +++ b/compiler/rustc_hir_typeck/src/expr.rs @@ -21,7 +21,7 @@ use crate::{ TupleArgumentsFlag::DontTupleArguments, }; use rustc_ast as ast; -use rustc_data_structures::fx::FxHashMap; +use rustc_data_structures::fx::{FxHashMap, FxHashSet}; use rustc_data_structures::stack::ensure_sufficient_stack; use rustc_errors::{ pluralize, struct_span_err, AddToDiagnostic, Applicability, Diagnostic, DiagnosticBuilder, @@ -564,7 +564,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let span = args.get(i).map(|a| a.span).unwrap_or(expr.span); let input = self.instantiate_binder_with_fresh_vars( span, - infer::LateBoundRegionConversionTime::FnCall, + infer::BoundRegionConversionTime::FnCall, fn_sig.input(i), ); self.require_type_is_sized_deferred( @@ -582,7 +582,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // with fresh vars. let output = self.instantiate_binder_with_fresh_vars( expr.span, - infer::LateBoundRegionConversionTime::FnCall, + infer::BoundRegionConversionTime::FnCall, fn_sig.output(), ); self.require_type_is_sized_deferred(output, expr.span, traits::SizedReturnType); @@ -2877,7 +2877,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // two-phase not needed because index_ty is never mutable self.demand_coerce(idx, idx_t, index_ty, None, AllowTwoPhase::No); self.select_obligations_where_possible(|errors| { - self.point_at_index_if_possible(errors, idx.span) + self.point_at_index(errors, idx.span); }); element_ty } @@ -3036,16 +3036,28 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { .ok() } - fn point_at_index_if_possible( - &self, - errors: &mut Vec<traits::FulfillmentError<'tcx>>, - span: Span, - ) { + fn point_at_index(&self, errors: &mut Vec<traits::FulfillmentError<'tcx>>, span: Span) { + let mut seen_preds = FxHashSet::default(); + // We re-sort here so that the outer most root obligations comes first, as we have the + // subsequent weird logic to identify *every* relevant obligation for proper deduplication + // of diagnostics. + errors.sort_by_key(|error| error.root_obligation.recursion_depth); for error in errors { - match error.obligation.predicate.kind().skip_binder() { - ty::PredicateKind::Clause(ty::ClauseKind::Trait(predicate)) - if self.tcx.is_diagnostic_item(sym::SliceIndex, predicate.trait_ref.def_id) => { + match ( + error.root_obligation.predicate.kind().skip_binder(), + error.obligation.predicate.kind().skip_binder(), + ) { + (ty::PredicateKind::Clause(ty::ClauseKind::Trait(predicate)), _) + if self.tcx.lang_items().index_trait() == Some(predicate.trait_ref.def_id) => + { + seen_preds.insert(error.obligation.predicate.kind().skip_binder()); + } + (_, ty::PredicateKind::Clause(ty::ClauseKind::Trait(predicate))) + if self.tcx.is_diagnostic_item(sym::SliceIndex, predicate.trait_ref.def_id) => + { + seen_preds.insert(error.obligation.predicate.kind().skip_binder()); } + (root, pred) if seen_preds.contains(&pred) || seen_preds.contains(&root) => {} _ => continue, } error.obligation.cause.span = span; diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs index e93d180fc13..bd653e79913 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs @@ -238,7 +238,7 @@ impl<'a, 'tcx> AstConv<'tcx> for FnCtxt<'a, 'tcx> { fn re_infer(&self, def: Option<&ty::GenericParamDef>, span: Span) -> Option<ty::Region<'tcx>> { let v = match def { - Some(def) => infer::EarlyBoundRegion(span, def.name), + Some(def) => infer::RegionParameterDefinition(span, def.name), None => infer::MiscVariable(span), }; Some(self.next_region_var(v)) @@ -289,7 +289,7 @@ impl<'a, 'tcx> AstConv<'tcx> for FnCtxt<'a, 'tcx> { ) -> Ty<'tcx> { let trait_ref = self.instantiate_binder_with_fresh_vars( span, - infer::LateBoundRegionConversionTime::AssocTypeProjection(item_def_id), + infer::BoundRegionConversionTime::AssocTypeProjection(item_def_id), poly_trait_ref, ); diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs index c43d4932fb9..2e0ab1560f4 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs @@ -2326,14 +2326,6 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { )); } - let needs_parens = match expr.kind { - // parenthesize if needed (Issue #46756) - hir::ExprKind::Cast(_, _) | hir::ExprKind::Binary(_, _, _) => true, - // parenthesize borrows of range literals (Issue #54505) - _ if is_range_literal(expr) => true, - _ => false, - }; - if let Some((sugg, msg)) = self.can_use_as_ref(expr) { return Some(( sugg, @@ -2361,18 +2353,48 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } } - let sugg = mutability.ref_prefix_str(); - let (sugg, verbose) = if needs_parens { - ( - vec![ - (sp.shrink_to_lo(), format!("{prefix}{sugg}(")), - (sp.shrink_to_hi(), ")".to_string()), - ], - false, - ) - } else { - (vec![(sp.shrink_to_lo(), format!("{prefix}{sugg}"))], true) + let make_sugg = |expr: &Expr<'_>, span: Span, sugg: &str| { + let needs_parens = match expr.kind { + // parenthesize if needed (Issue #46756) + hir::ExprKind::Cast(_, _) | hir::ExprKind::Binary(_, _, _) => true, + // parenthesize borrows of range literals (Issue #54505) + _ if is_range_literal(expr) => true, + _ => false, + }; + + if needs_parens { + ( + vec![ + (span.shrink_to_lo(), format!("{prefix}{sugg}(")), + (span.shrink_to_hi(), ")".to_string()), + ], + false, + ) + } else { + (vec![(span.shrink_to_lo(), format!("{prefix}{sugg}"))], true) + } }; + + // Suggest dereferencing the lhs for expressions such as `&T == T` + if let Some(hir::Node::Expr(hir::Expr { + kind: hir::ExprKind::Binary(_, lhs, ..), + .. + })) = self.tcx.hir().find_parent(expr.hir_id) + && let &ty::Ref(..) = self.check_expr(lhs).kind() + { + let (sugg, verbose) = make_sugg(lhs, lhs.span, "*"); + + return Some(( + sugg, + "consider dereferencing the borrow".to_string(), + Applicability::MachineApplicable, + verbose, + false, + )); + } + + let sugg = mutability.ref_prefix_str(); + let (sugg, verbose) = make_sugg(expr, sp, sugg); return Some(( sugg, format!("consider {}borrowing here", mutability.mutably_str()), diff --git a/compiler/rustc_hir_typeck/src/method/probe.rs b/compiler/rustc_hir_typeck/src/method/probe.rs index 74f469cb39c..a51fa8354c9 100644 --- a/compiler/rustc_hir_typeck/src/method/probe.rs +++ b/compiler/rustc_hir_typeck/src/method/probe.rs @@ -801,7 +801,7 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> { // a `&self` method will wind up with an argument type like `&dyn Trait`. let trait_ref = principal.with_self_ty(self.tcx, self_ty); self.elaborate_bounds(iter::once(trait_ref), |this, new_trait_ref, item| { - if new_trait_ref.has_non_region_late_bound() { + if new_trait_ref.has_non_region_bound_vars() { this.tcx.sess.delay_span_bug( this.span, "tried to select method from HRTB with non-lifetime bound vars", @@ -853,7 +853,7 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> { self.elaborate_bounds(bounds, |this, poly_trait_ref, item| { let trait_ref = this.instantiate_binder_with_fresh_vars( this.span, - infer::LateBoundRegionConversionTime::FnCall, + infer::BoundRegionConversionTime::FnCall, poly_trait_ref, ); @@ -971,7 +971,7 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> { } else { let new_trait_ref = self.instantiate_binder_with_fresh_vars( self.span, - infer::LateBoundRegionConversionTime::FnCall, + infer::BoundRegionConversionTime::FnCall, bound_trait_ref, ); diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs index bd40e6c1047..4e54144b5d0 100644 --- a/compiler/rustc_hir_typeck/src/method/suggest.rs +++ b/compiler/rustc_hir_typeck/src/method/suggest.rs @@ -3296,8 +3296,12 @@ fn print_disambiguation_help<'tcx>( { let def_kind_descr = tcx.def_kind_descr(item.kind.as_def_kind(), item.def_id); let item_name = item.ident(tcx); - let rcvr_ref = tcx.fn_sig(item.def_id).skip_binder().skip_binder().inputs()[0] - .ref_mutability() + let rcvr_ref = tcx.fn_sig(item.def_id) + .skip_binder() + .skip_binder() + .inputs() + .get(0) + .and_then(|ty| ty.ref_mutability()) .map_or("", |mutbl| mutbl.ref_prefix_str()); let args = format!( "({}{})", diff --git a/compiler/rustc_hir_typeck/src/writeback.rs b/compiler/rustc_hir_typeck/src/writeback.rs index 896aacc6993..2dfe7272673 100644 --- a/compiler/rustc_hir_typeck/src/writeback.rs +++ b/compiler/rustc_hir_typeck/src/writeback.rs @@ -784,7 +784,7 @@ impl<'tcx> TypeFolder<TyCtxt<'tcx>> for EraseEarlyRegions<'tcx> { } } fn fold_region(&mut self, r: ty::Region<'tcx>) -> ty::Region<'tcx> { - if r.is_late_bound() { r } else { self.tcx.lifetimes.re_erased } + if r.is_bound() { r } else { self.tcx.lifetimes.re_erased } } } @@ -822,7 +822,7 @@ impl<'cx, 'tcx> TypeFolder<TyCtxt<'tcx>> for Resolver<'cx, 'tcx> { } fn fold_region(&mut self, r: ty::Region<'tcx>) -> ty::Region<'tcx> { - debug_assert!(!r.is_late_bound(), "Should not be resolving bound region."); + debug_assert!(!r.is_bound(), "Should not be resolving bound region."); self.fcx.tcx.lifetimes.re_erased } diff --git a/compiler/rustc_index/src/bit_set.rs b/compiler/rustc_index/src/bit_set.rs index ece61ff1252..d0b4889b45f 100644 --- a/compiler/rustc_index/src/bit_set.rs +++ b/compiler/rustc_index/src/bit_set.rs @@ -237,23 +237,12 @@ impl<T: Idx> BitSet<T> { new_word != word } - /// Gets a slice of the underlying words. - pub fn words(&self) -> &[Word] { - &self.words - } - /// Iterates over the indices of set bits in a sorted order. #[inline] pub fn iter(&self) -> BitIter<'_, T> { BitIter::new(&self.words) } - /// Duplicates the set as a hybrid set. - pub fn to_hybrid(&self) -> HybridBitSet<T> { - // Note: we currently don't bother trying to make a Sparse set. - HybridBitSet::Dense(self.to_owned()) - } - /// Set `self = self | other`. In contrast to `union` returns `true` if the set contains at /// least one bit that is not in `other` (i.e. `other` is not a superset of `self`). /// @@ -1601,11 +1590,11 @@ impl<R: Idx, C: Idx> BitMatrix<R, C> { pub fn from_row_n(row: &BitSet<C>, num_rows: usize) -> BitMatrix<R, C> { let num_columns = row.domain_size(); let words_per_row = num_words(num_columns); - assert_eq!(words_per_row, row.words().len()); + assert_eq!(words_per_row, row.words.len()); BitMatrix { num_rows, num_columns, - words: iter::repeat(row.words()).take(num_rows).flatten().cloned().collect(), + words: iter::repeat(&row.words).take(num_rows).flatten().cloned().collect(), marker: PhantomData, } } @@ -1700,9 +1689,9 @@ impl<R: Idx, C: Idx> BitMatrix<R, C> { assert_eq!(with.domain_size(), self.num_columns); let (write_start, write_end) = self.range(write); let mut changed = false; - for (read_index, write_index) in iter::zip(0..with.words().len(), write_start..write_end) { + for (read_index, write_index) in iter::zip(0..with.words.len(), write_start..write_end) { let word = self.words[write_index]; - let new_word = word | with.words()[read_index]; + let new_word = word | with.words[read_index]; self.words[write_index] = new_word; changed |= word != new_word; } @@ -2002,54 +1991,6 @@ impl std::fmt::Debug for FiniteBitSet<u32> { } } -impl FiniteBitSetTy for u64 { - const DOMAIN_SIZE: u32 = 64; - - const FILLED: Self = Self::MAX; - const EMPTY: Self = Self::MIN; - - const ONE: Self = 1u64; - const ZERO: Self = 0u64; - - fn checked_shl(self, rhs: u32) -> Option<Self> { - self.checked_shl(rhs) - } - - fn checked_shr(self, rhs: u32) -> Option<Self> { - self.checked_shr(rhs) - } -} - -impl std::fmt::Debug for FiniteBitSet<u64> { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - write!(f, "{:064b}", self.0) - } -} - -impl FiniteBitSetTy for u128 { - const DOMAIN_SIZE: u32 = 128; - - const FILLED: Self = Self::MAX; - const EMPTY: Self = Self::MIN; - - const ONE: Self = 1u128; - const ZERO: Self = 0u128; - - fn checked_shl(self, rhs: u32) -> Option<Self> { - self.checked_shl(rhs) - } - - fn checked_shr(self, rhs: u32) -> Option<Self> { - self.checked_shr(rhs) - } -} - -impl std::fmt::Debug for FiniteBitSet<u128> { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - write!(f, "{:0128b}", self.0) - } -} - /// A fixed-sized bitset type represented by an integer type. Indices outwith than the range /// representable by `T` are considered set. #[derive(Copy, Clone, Eq, PartialEq, Decodable, Encodable)] diff --git a/compiler/rustc_index/src/vec.rs b/compiler/rustc_index/src/vec.rs index 99e72e49f8e..66c5cc774b2 100644 --- a/compiler/rustc_index/src/vec.rs +++ b/compiler/rustc_index/src/vec.rs @@ -137,10 +137,6 @@ impl<I: Idx, T> IndexVec<I, T> { self.raw.truncate(a) } - pub fn convert_index_type<Ix: Idx>(self) -> IndexVec<Ix, T> { - IndexVec::from_raw(self.raw) - } - /// Grows the index vector so that it contains an entry for /// `elem`; if that is already true, then has no /// effect. Otherwise, inserts new values as needed by invoking diff --git a/compiler/rustc_index/src/vec/tests.rs b/compiler/rustc_index/src/vec/tests.rs index cb0f0db220d..7e5e41bd2d1 100644 --- a/compiler/rustc_index/src/vec/tests.rs +++ b/compiler/rustc_index/src/vec/tests.rs @@ -1,5 +1,3 @@ -#![allow(dead_code)] - // Allows the macro invocation below to work use crate as rustc_index; diff --git a/compiler/rustc_infer/src/errors/note_and_explain.rs b/compiler/rustc_infer/src/errors/note_and_explain.rs index 57bc14ebcb3..294bd9d1d54 100644 --- a/compiler/rustc_infer/src/errors/note_and_explain.rs +++ b/compiler/rustc_infer/src/errors/note_and_explain.rs @@ -17,7 +17,7 @@ impl<'a> DescriptionCtx<'a> { alt_span: Option<Span>, ) -> Option<Self> { let (span, kind, arg) = match *region { - ty::ReEarlyBound(ref br) => { + ty::ReEarlyParam(ref br) => { let scope = region.free_region_binding_scope(tcx).expect_local(); let span = if let Some(param) = tcx.hir().get_generics(scope).and_then(|generics| generics.get_named(br.name)) @@ -32,7 +32,7 @@ impl<'a> DescriptionCtx<'a> { (Some(span), "as_defined_anon", String::new()) } } - ty::ReFree(ref fr) => { + ty::ReLateParam(ref fr) => { if !fr.bound_region.is_named() && let Some((ty, _)) = find_anon_type(tcx, region, &fr.bound_region) { @@ -70,11 +70,14 @@ impl<'a> DescriptionCtx<'a> { ty::RePlaceholder(_) | ty::ReError(_) => return None, // FIXME(#13998) RePlaceholder should probably print like - // ReFree rather than dumping Debug output on the user. + // ReLateParam rather than dumping Debug output on the user. // // We shouldn't really be having unification failures with ReVar - // and ReLateBound though. - ty::ReVar(_) | ty::ReLateBound(..) | ty::ReErased => { + // and ReBound though. + // + // FIXME(@lcnr): figure out why we `ReBound` have to handle `ReBound` + // here, this feels somewhat off. + ty::ReVar(_) | ty::ReBound(..) | ty::ReErased => { (alt_span, "revar", format!("{region:?}")) } }; diff --git a/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs b/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs index 0e2f9ba70fe..b502590c1bf 100644 --- a/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs +++ b/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs @@ -13,7 +13,6 @@ use rustc_middle::ty::flags::FlagComputation; use rustc_middle::ty::fold::{TypeFoldable, TypeFolder, TypeSuperFoldable}; use rustc_middle::ty::GenericArg; use rustc_middle::ty::{self, BoundVar, InferConst, List, Ty, TyCtxt, TypeFlags, TypeVisitableExt}; -use std::sync::atomic::Ordering; use rustc_data_structures::fx::FxHashMap; use rustc_index::Idx; @@ -43,8 +42,6 @@ impl<'tcx> InferCtxt<'tcx> { where V: TypeFoldable<TyCtxt<'tcx>>, { - self.tcx.sess.perf_stats.queries_canonicalized.fetch_add(1, Ordering::Relaxed); - Canonicalizer::canonicalize(value, self, self.tcx, &CanonicalizeAllFreeRegions, query_state) } @@ -62,8 +59,6 @@ impl<'tcx> InferCtxt<'tcx> { where V: TypeFoldable<TyCtxt<'tcx>>, { - self.tcx.sess.perf_stats.queries_canonicalized.fetch_add(1, Ordering::Relaxed); - Canonicalizer::canonicalize( value, self, @@ -138,8 +133,6 @@ impl<'tcx> InferCtxt<'tcx> { where V: TypeFoldable<TyCtxt<'tcx>>, { - self.tcx.sess.perf_stats.queries_canonicalized.fetch_add(1, Ordering::Relaxed); - Canonicalizer::canonicalize( value, self, @@ -179,7 +172,7 @@ impl CanonicalizeMode for CanonicalizeQueryResponse { r: ty::Region<'tcx>, ) -> ty::Region<'tcx> { match *r { - ty::ReFree(_) | ty::ReErased | ty::ReStatic | ty::ReEarlyBound(..) => r, + ty::ReLateParam(_) | ty::ReErased | ty::ReStatic | ty::ReEarlyParam(..) => r, ty::RePlaceholder(placeholder) => canonicalizer.canonical_var_for_region( CanonicalVarInfo { kind: CanonicalVarKind::PlaceholderRegion(placeholder) }, @@ -230,9 +223,13 @@ impl CanonicalizeMode for CanonicalizeUserTypeAnnotation { r: ty::Region<'tcx>, ) -> ty::Region<'tcx> { match *r { - ty::ReEarlyBound(_) | ty::ReFree(_) | ty::ReErased | ty::ReStatic | ty::ReError(_) => r, + ty::ReEarlyParam(_) + | ty::ReLateParam(_) + | ty::ReErased + | ty::ReStatic + | ty::ReError(_) => r, ty::ReVar(_) => canonicalizer.canonical_var_for_region_in_root_universe(r), - ty::RePlaceholder(..) | ty::ReLateBound(..) => { + ty::RePlaceholder(..) | ty::ReBound(..) => { // We only expect region names that the user can type. bug!("unexpected region in query response: `{:?}`", r) } @@ -343,7 +340,7 @@ impl<'cx, 'tcx> TypeFolder<TyCtxt<'tcx>> for Canonicalizer<'cx, 'tcx> { fn fold_region(&mut self, r: ty::Region<'tcx>) -> ty::Region<'tcx> { match *r { - ty::ReLateBound(index, ..) => { + ty::ReBound(index, ..) => { if index >= self.binder_index { bug!("escaping late-bound region during canonicalization"); } else { @@ -366,9 +363,9 @@ impl<'cx, 'tcx> TypeFolder<TyCtxt<'tcx>> for Canonicalizer<'cx, 'tcx> { } ty::ReStatic - | ty::ReEarlyBound(..) + | ty::ReEarlyParam(..) | ty::ReError(_) - | ty::ReFree(_) + | ty::ReLateParam(_) | ty::RePlaceholder(..) | ty::ReErased => self.canonicalize_mode.canonicalize_free_region(self, r), } @@ -776,7 +773,7 @@ impl<'cx, 'tcx> Canonicalizer<'cx, 'tcx> { ) -> ty::Region<'tcx> { let var = self.canonical_var(info, r.into()); let br = ty::BoundRegion { var, kind: ty::BrAnon }; - ty::Region::new_late_bound(self.interner(), self.binder_index, br) + ty::Region::new_bound(self.interner(), self.binder_index, br) } /// Given a type variable `ty_var` of the given kind, first check diff --git a/compiler/rustc_infer/src/infer/canonical/query_response.rs b/compiler/rustc_infer/src/infer/canonical/query_response.rs index ed101082130..d911e28484c 100644 --- a/compiler/rustc_infer/src/infer/canonical/query_response.rs +++ b/compiler/rustc_infer/src/infer/canonical/query_response.rs @@ -460,7 +460,7 @@ impl<'tcx> InferCtxt<'tcx> { } GenericArgKind::Lifetime(result_value) => { // e.g., here `result_value` might be `'?1` in the example above... - if let ty::ReLateBound(debruijn, br) = *result_value { + if let ty::ReBound(debruijn, br) = *result_value { // ... in which case we would set `canonical_vars[0]` to `Some('static)`. // We only allow a `ty::INNERMOST` index in substitutions. diff --git a/compiler/rustc_infer/src/infer/error_reporting/mod.rs b/compiler/rustc_infer/src/infer/error_reporting/mod.rs index 26d071a0139..0546f4e1afc 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/mod.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/mod.rs @@ -168,17 +168,17 @@ pub(super) fn note_and_explain_region<'tcx>( alt_span: Option<Span>, ) { let (description, span) = match *region { - ty::ReEarlyBound(_) | ty::ReFree(_) | ty::RePlaceholder(_) | ty::ReStatic => { + ty::ReEarlyParam(_) | ty::ReLateParam(_) | ty::RePlaceholder(_) | ty::ReStatic => { msg_span_from_named_region(tcx, region, alt_span) } ty::ReError(_) => return, // We shouldn't really be having unification failures with ReVar - // and ReLateBound though. - ty::ReVar(_) | ty::ReLateBound(..) | ty::ReErased => { - (format!("lifetime `{region}`"), alt_span) - } + // and ReBound though. + // + // FIXME(@lcnr): Figure out whether this is reachable and if so, why. + ty::ReVar(_) | ty::ReBound(..) | ty::ReErased => (format!("lifetime `{region}`"), alt_span), }; emit_msg_span(err, prefix, description, span, suffix); @@ -202,7 +202,7 @@ fn msg_span_from_named_region<'tcx>( alt_span: Option<Span>, ) -> (String, Option<Span>) { match *region { - ty::ReEarlyBound(ref br) => { + ty::ReEarlyParam(ref br) => { let scope = region.free_region_binding_scope(tcx).expect_local(); let span = if let Some(param) = tcx.hir().get_generics(scope).and_then(|generics| generics.get_named(br.name)) @@ -218,7 +218,7 @@ fn msg_span_from_named_region<'tcx>( }; (text, Some(span)) } - ty::ReFree(ref fr) => { + ty::ReLateParam(ref fr) => { if !fr.bound_region.is_named() && let Some((ty, _)) = find_anon_type(tcx, region, &fr.bound_region) { @@ -315,7 +315,7 @@ pub fn unexpected_hidden_region_diagnostic<'tcx>( // Explain the region we are capturing. match *hidden_region { - ty::ReEarlyBound(_) | ty::ReFree(_) | ty::ReStatic => { + ty::ReEarlyParam(_) | ty::ReLateParam(_) | ty::ReStatic => { // Assuming regionck succeeded (*), we ought to always be // capturing *some* region from the fn header, and hence it // ought to be free. So under normal circumstances, we will go @@ -1285,7 +1285,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { if lifetimes.0 != lifetimes.1 { values.0.push_highlighted(l1); values.1.push_highlighted(l2); - } else if lifetimes.0.is_late_bound() { + } else if lifetimes.0.is_bound() { values.0.push_normal(l1); values.1.push_normal(l2); } else { @@ -2364,7 +2364,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { span, format!("{labeled_user_string} may not live long enough"), match sub.kind() { - ty::ReEarlyBound(_) | ty::ReFree(_) if sub.has_name() => error_code!(E0309), + ty::ReEarlyParam(_) | ty::ReLateParam(_) if sub.has_name() => error_code!(E0309), ty::ReStatic => error_code!(E0310), _ => error_code!(E0311), }, @@ -2372,7 +2372,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { '_explain: { let (description, span) = match sub.kind() { - ty::ReEarlyBound(_) | ty::ReFree(_) | ty::ReStatic => { + ty::ReEarlyParam(_) | ty::ReLateParam(_) | ty::ReStatic => { msg_span_from_named_region(self.tcx, sub, Some(span)) } _ => (format!("lifetime `{sub}`"), Some(span)), @@ -2515,7 +2515,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { let (lifetime_def_id, lifetime_scope) = match self.tcx.is_suitable_region(lifetime) { Some(info) if !lifetime.has_name() => { - (info.boundregion.get_id().unwrap().expect_local(), info.def_id) + (info.bound_region.get_id().unwrap().expect_local(), info.def_id) } _ => return lifetime.get_name_or_anon().to_string(), }; @@ -2714,8 +2714,8 @@ impl<'tcx> TypeRelation<'tcx> for SameTypeModuloInfer<'_, 'tcx> { a: ty::Region<'tcx>, b: ty::Region<'tcx>, ) -> RelateResult<'tcx, ty::Region<'tcx>> { - if (a.is_var() && b.is_free_or_static()) - || (b.is_var() && a.is_free_or_static()) + if (a.is_var() && b.is_free()) + || (b.is_var() && a.is_free()) || (a.is_var() && b.is_var()) || a == b { @@ -2768,18 +2768,20 @@ impl<'tcx> InferCtxt<'tcx> { infer::AddrOfRegion(_) => " for borrow expression".to_string(), infer::Autoref(_) => " for autoref".to_string(), infer::Coercion(_) => " for automatic coercion".to_string(), - infer::LateBoundRegion(_, br, infer::FnCall) => { + infer::BoundRegion(_, br, infer::FnCall) => { format!(" for lifetime parameter {}in function call", br_string(br)) } - infer::LateBoundRegion(_, br, infer::HigherRankedType) => { + infer::BoundRegion(_, br, infer::HigherRankedType) => { format!(" for lifetime parameter {}in generic type", br_string(br)) } - infer::LateBoundRegion(_, br, infer::AssocTypeProjection(def_id)) => format!( + infer::BoundRegion(_, br, infer::AssocTypeProjection(def_id)) => format!( " for lifetime parameter {}in trait containing associated type `{}`", br_string(br), self.tcx.associated_item(def_id).name ), - infer::EarlyBoundRegion(_, name) => format!(" for lifetime parameter `{name}`"), + infer::RegionParameterDefinition(_, name) => { + format!(" for lifetime parameter `{name}`") + } infer::UpvarRegion(ref upvar_id, _) => { let var_name = self.tcx.hir().name(upvar_id.var_path.hir_id); format!(" for capture of `{var_name}` by closure") diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/different_lifetimes.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/different_lifetimes.rs index 1a60bab18db..f56d5d7d345 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/different_lifetimes.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/different_lifetimes.rs @@ -70,9 +70,9 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { let anon_reg_sub = self.tcx().is_suitable_region(sub)?; let scope_def_id_sup = anon_reg_sup.def_id; - let bregion_sup = anon_reg_sup.boundregion; + let bregion_sup = anon_reg_sup.bound_region; let scope_def_id_sub = anon_reg_sub.def_id; - let bregion_sub = anon_reg_sub.boundregion; + let bregion_sub = anon_reg_sub.bound_region; let ty_sup = find_anon_type(self.tcx(), sup, &bregion_sup)?; diff --git a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/util.rs b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/util.rs index be6d1a3750c..7252a812466 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/util.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/nice_region_error/util.rs @@ -41,8 +41,8 @@ pub fn find_param_with_region<'tcx>( replace_region: Region<'tcx>, ) -> Option<AnonymousParamInfo<'tcx>> { let (id, bound_region) = match *anon_region { - ty::ReFree(ref free_region) => (free_region.scope, free_region.bound_region), - ty::ReEarlyBound(ebr) => { + ty::ReLateParam(late_param) => (late_param.scope, late_param.bound_region), + ty::ReEarlyParam(ebr) => { (tcx.parent(ebr.def_id), ty::BoundRegionKind::BrNamed(ebr.def_id, ebr.name)) } _ => return None, // not a free region diff --git a/compiler/rustc_infer/src/infer/error_reporting/suggest.rs b/compiler/rustc_infer/src/infer/error_reporting/suggest.rs index fe18d00293a..f0b33d30e2c 100644 --- a/compiler/rustc_infer/src/infer/error_reporting/suggest.rs +++ b/compiler/rustc_infer/src/infer/error_reporting/suggest.rs @@ -572,8 +572,8 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { if let ty::Ref(expected_region, _, _) = expected.kind() && let ty::Ref(found_region, _, _) = found.kind() - && expected_region.is_late_bound() - && !found_region.is_late_bound() + && expected_region.is_bound() + && !found_region.is_bound() && let hir::TyKind::Infer = arg_hir.kind { // If the expected region is late bound, the found region is not, and users are asking compiler diff --git a/compiler/rustc_infer/src/infer/free_regions.rs b/compiler/rustc_infer/src/infer/free_regions.rs index ed1a2a11719..0dde3082d48 100644 --- a/compiler/rustc_infer/src/infer/free_regions.rs +++ b/compiler/rustc_infer/src/infer/free_regions.rs @@ -22,8 +22,8 @@ impl<'a, 'tcx> RegionRelations<'a, 'tcx> { Self { tcx, free_regions } } - pub fn lub_free_regions(&self, r_a: Region<'tcx>, r_b: Region<'tcx>) -> Region<'tcx> { - self.free_regions.lub_free_regions(self.tcx, r_a, r_b) + pub fn lub_param_regions(&self, r_a: Region<'tcx>, r_b: Region<'tcx>) -> Region<'tcx> { + self.free_regions.lub_param_regions(self.tcx, r_a, r_b) } } @@ -59,7 +59,7 @@ impl<'tcx> FreeRegionMap<'tcx> { r_a: Region<'tcx>, r_b: Region<'tcx>, ) -> bool { - assert!(r_a.is_free_or_static() && r_b.is_free_or_static()); + assert!(r_a.is_free() && r_b.is_free()); let re_static = tcx.lifetimes.re_static; if self.check_relation(re_static, r_b) { // `'a <= 'static` is always true, and not stored in the @@ -80,15 +80,15 @@ impl<'tcx> FreeRegionMap<'tcx> { /// cases, this is more conservative than necessary, in order to /// avoid making arbitrary choices. See /// `TransitiveRelation::postdom_upper_bound` for more details. - pub fn lub_free_regions( + pub fn lub_param_regions( &self, tcx: TyCtxt<'tcx>, r_a: Region<'tcx>, r_b: Region<'tcx>, ) -> Region<'tcx> { - debug!("lub_free_regions(r_a={:?}, r_b={:?})", r_a, r_b); - assert!(r_a.is_free()); - assert!(r_b.is_free()); + debug!("lub_param_regions(r_a={:?}, r_b={:?})", r_a, r_b); + assert!(r_a.is_param()); + assert!(r_b.is_param()); let result = if r_a == r_b { r_a } else { @@ -97,7 +97,7 @@ impl<'tcx> FreeRegionMap<'tcx> { Some(r) => r, } }; - debug!("lub_free_regions(r_a={:?}, r_b={:?}) = {:?}", r_a, r_b, result); + debug!("lub_param_regions(r_a={:?}, r_b={:?}) = {:?}", r_a, r_b, result); result } } diff --git a/compiler/rustc_infer/src/infer/freshen.rs b/compiler/rustc_infer/src/infer/freshen.rs index 35204478c54..11ab86277c1 100644 --- a/compiler/rustc_infer/src/infer/freshen.rs +++ b/compiler/rustc_infer/src/infer/freshen.rs @@ -110,13 +110,13 @@ impl<'a, 'tcx> TypeFolder<TyCtxt<'tcx>> for TypeFreshener<'a, 'tcx> { fn fold_region(&mut self, r: ty::Region<'tcx>) -> ty::Region<'tcx> { match *r { - ty::ReLateBound(..) => { + ty::ReBound(..) => { // leave bound regions alone r } - ty::ReEarlyBound(..) - | ty::ReFree(_) + ty::ReEarlyParam(..) + | ty::ReLateParam(_) | ty::ReVar(_) | ty::RePlaceholder(..) | ty::ReStatic diff --git a/compiler/rustc_infer/src/infer/generalize.rs b/compiler/rustc_infer/src/infer/generalize.rs index 17fe3aa7b44..9e24b020510 100644 --- a/compiler/rustc_infer/src/infer/generalize.rs +++ b/compiler/rustc_infer/src/infer/generalize.rs @@ -327,7 +327,7 @@ where match *r { // Never make variables for regions bound within the type itself, // nor for erased regions. - ty::ReLateBound(..) | ty::ReErased => { + ty::ReBound(..) | ty::ReErased => { return Ok(r); } @@ -340,8 +340,8 @@ where ty::RePlaceholder(..) | ty::ReVar(..) | ty::ReStatic - | ty::ReEarlyBound(..) - | ty::ReFree(..) => { + | ty::ReEarlyParam(..) + | ty::ReLateParam(..) => { // see common code below } } diff --git a/compiler/rustc_infer/src/infer/lexical_region_resolve/mod.rs b/compiler/rustc_infer/src/infer/lexical_region_resolve/mod.rs index bee0a978ad0..800aee1f4d3 100644 --- a/compiler/rustc_infer/src/infer/lexical_region_resolve/mod.rs +++ b/compiler/rustc_infer/src/infer/lexical_region_resolve/mod.rs @@ -16,8 +16,8 @@ use rustc_data_structures::intern::Interned; use rustc_index::{IndexSlice, IndexVec}; use rustc_middle::ty::fold::TypeFoldable; use rustc_middle::ty::{self, Ty, TyCtxt}; -use rustc_middle::ty::{ReEarlyBound, ReErased, ReError, ReFree, ReStatic}; -use rustc_middle::ty::{ReLateBound, RePlaceholder, ReVar}; +use rustc_middle::ty::{ReBound, RePlaceholder, ReVar}; +use rustc_middle::ty::{ReEarlyParam, ReErased, ReError, ReLateParam, ReStatic}; use rustc_middle::ty::{Region, RegionVid}; use rustc_span::Span; use std::fmt; @@ -378,7 +378,7 @@ impl<'cx, 'tcx> LexicalResolver<'cx, 'tcx> { // so it doesn't really matter if it's shorter or longer than an empty region ReError(_) => false, - ReLateBound(..) | ReErased => { + ReBound(..) | ReErased => { bug!("cannot relate region: {:?}", a); } @@ -390,7 +390,7 @@ impl<'cx, 'tcx> LexicalResolver<'cx, 'tcx> { ); } - ReStatic | ReEarlyBound(_) | ReFree(_) => { + ReStatic | ReEarlyParam(_) | ReLateParam(_) => { // nothing lives longer than `'static` // All empty regions are less than early-bound, free, @@ -411,7 +411,7 @@ impl<'cx, 'tcx> LexicalResolver<'cx, 'tcx> { // so it doesn't really matter if it's shorter or longer than an empty region ReError(_) => false, - ReLateBound(..) | ReErased => { + ReBound(..) | ReErased => { bug!("cannot relate region: {:?}", b); } @@ -423,9 +423,9 @@ impl<'cx, 'tcx> LexicalResolver<'cx, 'tcx> { ); } - ReStatic | ReEarlyBound(_) | ReFree(_) => { + ReStatic | ReEarlyParam(_) | ReLateParam(_) => { // nothing lives longer than `'static` - // All empty regions are less than early-bound, free, + // All empty regions are less than early-bound, late-bound, // and scope regions. true } @@ -450,8 +450,7 @@ impl<'cx, 'tcx> LexicalResolver<'cx, 'tcx> { // Check for the case where we know that `'b: 'static` -- in that case, // `a <= b` for all `a`. - let b_free_or_static = b.is_free_or_static(); - if b_free_or_static && sub_free_regions(tcx.lifetimes.re_static, b) { + if b.is_free() && sub_free_regions(tcx.lifetimes.re_static, b) { return true; } @@ -460,8 +459,7 @@ impl<'cx, 'tcx> LexicalResolver<'cx, 'tcx> { // `lub` relationship defined below, since sometimes the "lub" // is actually the `postdom_upper_bound` (see // `TransitiveRelation` for more details). - let a_free_or_static = a.is_free_or_static(); - if a_free_or_static && b_free_or_static { + if a.is_free() && b.is_free() { return sub_free_regions(a, b); } @@ -478,7 +476,7 @@ impl<'cx, 'tcx> LexicalResolver<'cx, 'tcx> { #[instrument(level = "trace", skip(self), ret)] fn lub_concrete_regions(&self, a: Region<'tcx>, b: Region<'tcx>) -> Region<'tcx> { match (*a, *b) { - (ReLateBound(..), _) | (_, ReLateBound(..)) | (ReErased, _) | (_, ReErased) => { + (ReBound(..), _) | (_, ReBound(..)) | (ReErased, _) | (_, ReErased) => { bug!("cannot relate region: LUB({:?}, {:?})", a, b); } @@ -501,8 +499,8 @@ impl<'cx, 'tcx> LexicalResolver<'cx, 'tcx> { self.tcx().lifetimes.re_static } - (ReEarlyBound(_) | ReFree(_), ReEarlyBound(_) | ReFree(_)) => { - self.region_rels.lub_free_regions(a, b) + (ReEarlyParam(_) | ReLateParam(_), ReEarlyParam(_) | ReLateParam(_)) => { + self.region_rels.lub_param_regions(a, b) } // For these types, we cannot define any additional @@ -723,13 +721,13 @@ impl<'cx, 'tcx> LexicalResolver<'cx, 'tcx> { return; } - // We place free regions first because we are special casing - // SubSupConflict(ReFree, ReFree) when reporting error, and so + // We place late-bound regions first because we are special casing + // SubSupConflict(ReLateParam, ReLateParam) when reporting error, and so // the user will more likely get a specific suggestion. fn region_order_key(x: &RegionAndOrigin<'_>) -> u8 { match *x.region { - ReEarlyBound(_) => 0, - ReFree(_) => 1, + ReEarlyParam(_) => 0, + ReLateParam(_) => 1, _ => 2, } } diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs index 4ee897ffe98..956d097a5b2 100644 --- a/compiler/rustc_infer/src/infer/mod.rs +++ b/compiler/rustc_infer/src/infer/mod.rs @@ -1,7 +1,7 @@ pub use self::at::DefineOpaqueTypes; pub use self::freshen::TypeFreshener; pub use self::lexical_region_resolve::RegionResolutionError; -pub use self::LateBoundRegionConversionTime::*; +pub use self::BoundRegionConversionTime::*; pub use self::RegionVariableOrigin::*; pub use self::SubregionOrigin::*; pub use self::ValuePairs::*; @@ -472,9 +472,9 @@ impl<'tcx> SubregionOrigin<'tcx> { } } -/// Times when we replace late-bound regions with variables: +/// Times when we replace bound regions with existentials: #[derive(Clone, Copy, Debug)] -pub enum LateBoundRegionConversionTime { +pub enum BoundRegionConversionTime { /// when a fn is called FnCall, @@ -508,11 +508,14 @@ pub enum RegionVariableOrigin { Coercion(Span), /// Region variables created as the values for early-bound regions. - EarlyBoundRegion(Span, Symbol), + /// + /// FIXME(@lcnr): This can also store a `DefId`, similar to + /// `TypeVariableOriginKind::TypeParameterDefinition`. + RegionParameterDefinition(Span, Symbol), - /// Region variables created for bound regions - /// in a function or method that is called. - LateBoundRegion(Span, ty::BoundRegionKind, LateBoundRegionConversionTime), + /// Region variables created when instantiating a binder with + /// existential variables, e.g. when calling a function or method. + BoundRegion(Span, ty::BoundRegionKind, BoundRegionConversionTime), UpvarRegion(ty::UpvarId, Span), @@ -1165,7 +1168,7 @@ impl<'tcx> InferCtxt<'tcx> { GenericParamDefKind::Lifetime => { // Create a region inference variable for the given // region parameter definition. - self.next_region_var(EarlyBoundRegion(span, param.name)).into() + self.next_region_var(RegionParameterDefinition(span, param.name)).into() } GenericParamDefKind::Type { .. } => { // Create a type inference variable for the given @@ -1456,13 +1459,13 @@ impl<'tcx> InferCtxt<'tcx> { // variables in the current universe. // // Use this method if you'd like to find some substitution of the binder's - // variables (e.g. during a method call). If there isn't a [`LateBoundRegionConversionTime`] + // variables (e.g. during a method call). If there isn't a [`BoundRegionConversionTime`] // that corresponds to your use case, consider whether or not you should // use [`InferCtxt::instantiate_binder_with_placeholders`] instead. pub fn instantiate_binder_with_fresh_vars<T>( &self, span: Span, - lbrct: LateBoundRegionConversionTime, + lbrct: BoundRegionConversionTime, value: ty::Binder<'tcx, T>, ) -> T where @@ -1475,7 +1478,7 @@ impl<'tcx> InferCtxt<'tcx> { struct ToFreshVars<'a, 'tcx> { infcx: &'a InferCtxt<'tcx>, span: Span, - lbrct: LateBoundRegionConversionTime, + lbrct: BoundRegionConversionTime, map: FxHashMap<ty::BoundVar, ty::GenericArg<'tcx>>, } @@ -1485,7 +1488,7 @@ impl<'tcx> InferCtxt<'tcx> { .entry(br.var) .or_insert_with(|| { self.infcx - .next_region_var(LateBoundRegion(self.span, br.kind, self.lbrct)) + .next_region_var(BoundRegion(self.span, br.kind, self.lbrct)) .into() }) .expect_region() @@ -2041,8 +2044,8 @@ impl RegionVariableOrigin { | AddrOfRegion(a) | Autoref(a) | Coercion(a) - | EarlyBoundRegion(a, ..) - | LateBoundRegion(a, ..) + | RegionParameterDefinition(a, ..) + | BoundRegion(a, ..) | UpvarRegion(_, a) => a, Nll(..) => bug!("NLL variable used with `span`"), } diff --git a/compiler/rustc_infer/src/infer/opaque_types.rs b/compiler/rustc_infer/src/infer/opaque_types.rs index 7a5dec22fe0..7a792d30cc7 100644 --- a/compiler/rustc_infer/src/infer/opaque_types.rs +++ b/compiler/rustc_infer/src/infer/opaque_types.rs @@ -432,7 +432,7 @@ where fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<Self::BreakTy> { match *r { // ignore bound regions, keep visiting - ty::ReLateBound(_, _) => ControlFlow::Continue(()), + ty::ReBound(_, _) => ControlFlow::Continue(()), _ => { (self.op)(r); ControlFlow::Continue(()) diff --git a/compiler/rustc_infer/src/infer/outlives/components.rs b/compiler/rustc_infer/src/infer/outlives/components.rs index 38819e8ad8a..f867876a2e6 100644 --- a/compiler/rustc_infer/src/infer/outlives/components.rs +++ b/compiler/rustc_infer/src/infer/outlives/components.rs @@ -213,8 +213,8 @@ pub(super) fn compute_alias_components_recursive<'tcx>( compute_components(tcx, ty, out, visited); } GenericArgKind::Lifetime(lt) => { - // Ignore late-bound regions. - if !lt.is_late_bound() { + // Ignore higher ranked regions. + if !lt.is_bound() { out.push(Component::Region(lt)); } } @@ -241,8 +241,8 @@ fn compute_components_recursive<'tcx>( compute_components(tcx, ty, out, visited); } GenericArgKind::Lifetime(lt) => { - // Ignore late-bound regions. - if !lt.is_late_bound() { + // Ignore higher ranked regions. + if !lt.is_bound() { out.push(Component::Region(lt)); } } diff --git a/compiler/rustc_infer/src/infer/outlives/env.rs b/compiler/rustc_infer/src/infer/outlives/env.rs index 47e3dd762b0..f8dbfdde30c 100644 --- a/compiler/rustc_infer/src/infer/outlives/env.rs +++ b/compiler/rustc_infer/src/infer/outlives/env.rs @@ -138,8 +138,8 @@ impl<'tcx> OutlivesEnvironmentBuilder<'tcx> { } OutlivesBound::RegionSubRegion(r_a, r_b) => match (*r_a, *r_b) { ( - ty::ReStatic | ty::ReEarlyBound(_) | ty::ReFree(_), - ty::ReStatic | ty::ReEarlyBound(_) | ty::ReFree(_), + ty::ReStatic | ty::ReEarlyParam(_) | ty::ReLateParam(_), + ty::ReStatic | ty::ReEarlyParam(_) | ty::ReLateParam(_), ) => self.region_relation.add(r_a, r_b), (ty::ReError(_), _) | (_, ty::ReError(_)) => {} // FIXME(#109628): We shouldn't have existential variables in implied bounds. diff --git a/compiler/rustc_infer/src/infer/outlives/for_liveness.rs b/compiler/rustc_infer/src/infer/outlives/for_liveness.rs index 398ac94ee36..2db8579af52 100644 --- a/compiler/rustc_infer/src/infer/outlives/for_liveness.rs +++ b/compiler/rustc_infer/src/infer/outlives/for_liveness.rs @@ -37,7 +37,7 @@ where fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<Self::BreakTy> { match *r { // ignore bound regions, keep visiting - ty::ReLateBound(_, _) => ControlFlow::Continue(()), + ty::ReBound(_, _) => ControlFlow::Continue(()), _ => { (self.op)(r); ControlFlow::Continue(()) diff --git a/compiler/rustc_infer/src/infer/outlives/test_type_match.rs b/compiler/rustc_infer/src/infer/outlives/test_type_match.rs index 6f973ee37f5..959b34aa145 100644 --- a/compiler/rustc_infer/src/infer/outlives/test_type_match.rs +++ b/compiler/rustc_infer/src/infer/outlives/test_type_match.rs @@ -48,7 +48,7 @@ pub fn extract_verify_if_eq<'tcx>( let verify_if_eq = verify_if_eq_b.skip_binder(); m.relate(verify_if_eq.ty, test_ty).ok()?; - if let ty::RegionKind::ReLateBound(depth, br) = verify_if_eq.bound.kind() { + if let ty::RegionKind::ReBound(depth, br) = verify_if_eq.bound.kind() { assert!(depth == ty::INNERMOST); match m.map.get(&br) { Some(&r) => Some(r), @@ -177,7 +177,7 @@ impl<'tcx> TypeRelation<'tcx> for MatchAgainstHigherRankedOutlives<'tcx> { value: ty::Region<'tcx>, ) -> RelateResult<'tcx, ty::Region<'tcx>> { debug!("self.pattern_depth = {:?}", self.pattern_depth); - if let ty::RegionKind::ReLateBound(depth, br) = pattern.kind() + if let ty::RegionKind::ReBound(depth, br) = pattern.kind() && depth == self.pattern_depth { self.bind(br, value) diff --git a/compiler/rustc_infer/src/infer/region_constraints/mod.rs b/compiler/rustc_infer/src/infer/region_constraints/mod.rs index 3fa9a7333a4..e888340bde3 100644 --- a/compiler/rustc_infer/src/infer/region_constraints/mod.rs +++ b/compiler/rustc_infer/src/infer/region_constraints/mod.rs @@ -16,7 +16,7 @@ use rustc_index::IndexVec; use rustc_middle::infer::unify_key::{RegionVidKey, UnifiedRegion}; use rustc_middle::ty::ReStatic; use rustc_middle::ty::{self, Ty, TyCtxt}; -use rustc_middle::ty::{ReLateBound, ReVar}; +use rustc_middle::ty::{ReBound, ReVar}; use rustc_middle::ty::{Region, RegionVid}; use rustc_span::Span; @@ -531,7 +531,7 @@ impl<'tcx> RegionConstraintCollector<'_, 'tcx> { debug!("origin = {:#?}", origin); match (*sub, *sup) { - (ReLateBound(..), _) | (_, ReLateBound(..)) => { + (ReBound(..), _) | (_, ReBound(..)) => { span_bug!(origin.span(), "cannot relate bound region: {:?} <= {:?}", sub, sup); } (_, ReStatic) => { @@ -662,12 +662,12 @@ impl<'tcx> RegionConstraintCollector<'_, 'tcx> { match *region { ty::ReStatic | ty::ReErased - | ty::ReFree(..) - | ty::ReEarlyBound(..) + | ty::ReLateParam(..) + | ty::ReEarlyParam(..) | ty::ReError(_) => ty::UniverseIndex::ROOT, ty::RePlaceholder(placeholder) => placeholder.universe, ty::ReVar(vid) => self.var_universe(vid), - ty::ReLateBound(..) => bug!("universe(): encountered bound region {:?}", region), + ty::ReBound(..) => bug!("universe(): encountered bound region {:?}", region), } } diff --git a/compiler/rustc_infer/src/traits/util.rs b/compiler/rustc_infer/src/traits/util.rs index 3c566e0dd6d..8cee13ce4ec 100644 --- a/compiler/rustc_infer/src/traits/util.rs +++ b/compiler/rustc_infer/src/traits/util.rs @@ -340,7 +340,7 @@ impl<'tcx, O: Elaboratable<'tcx>> Elaborator<'tcx, O> { // consider this as evidence that `T: 'static`, but // I'm a bit wary of such constructions and so for now // I want to be conservative. --nmatsakis - if r_min.is_late_bound() { + if r_min.is_bound() { return; } @@ -351,7 +351,7 @@ impl<'tcx, O: Elaboratable<'tcx>> Elaborator<'tcx, O> { .into_iter() .filter_map(|component| match component { Component::Region(r) => { - if r.is_late_bound() { + if r.is_bound() { None } else { Some(ty::ClauseKind::RegionOutlives(ty::OutlivesPredicate( diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs index d3081695523..e6e132978ed 100644 --- a/compiler/rustc_interface/src/tests.rs +++ b/compiler/rustc_interface/src/tests.rs @@ -679,7 +679,6 @@ fn test_unstable_options_tracking_hash() { untracked!(incremental_info, true); untracked!(incremental_verify_ich, true); untracked!(input_stats, true); - untracked!(keep_hygiene_data, true); untracked!(link_native_libraries, false); untracked!(llvm_time_trace, true); untracked!(ls, vec!["all".to_owned()]); @@ -691,7 +690,6 @@ fn test_unstable_options_tracking_hash() { untracked!(no_leak_check, true); untracked!(no_parallel_llvm, true); untracked!(parse_only, true); - untracked!(perf_stats, true); // `pre_link_arg` is omitted because it just forwards to `pre_link_args`. untracked!(pre_link_args, vec![String::from("abc"), String::from("def")]); untracked!(print_codegen_stats, true); @@ -771,6 +769,7 @@ fn test_unstable_options_tracking_hash() { tracked!(instrument_xray, Some(InstrumentXRay::default())); tracked!(link_directives, false); tracked!(link_only, true); + tracked!(llvm_module_flag, vec![("bar".to_string(), 123, "max".to_string())]); tracked!(llvm_plugins, vec![String::from("plugin_name")]); tracked!(location_detail, LocationDetail { file: true, line: false, column: false }); tracked!(maximal_hir_to_mir_coverage, true); diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs index 6f6150a4172..e3dd8faeedb 100644 --- a/compiler/rustc_lint/src/builtin.rs +++ b/compiler/rustc_lint/src/builtin.rs @@ -1910,7 +1910,7 @@ impl ExplicitOutlivesRequirements { .iter() .filter_map(|(clause, _)| match clause.kind().skip_binder() { ty::ClauseKind::RegionOutlives(ty::OutlivesPredicate(a, b)) => match *a { - ty::ReEarlyBound(ebr) if ebr.def_id == def_id => Some(b), + ty::ReEarlyParam(ebr) if ebr.def_id == def_id => Some(b), _ => None, }, _ => None, @@ -1953,7 +1953,7 @@ impl ExplicitOutlivesRequirements { let is_inferred = match tcx.named_bound_var(lifetime.hir_id) { Some(ResolvedArg::EarlyBound(def_id)) => inferred_outlives .iter() - .any(|r| matches!(**r, ty::ReEarlyBound(ebr) if { ebr.def_id == def_id })), + .any(|r| matches!(**r, ty::ReEarlyParam(ebr) if { ebr.def_id == def_id })), _ => false, }; diff --git a/compiler/rustc_lint/src/reference_casting.rs b/compiler/rustc_lint/src/reference_casting.rs index d44691b5e9b..82483ac7dc0 100644 --- a/compiler/rustc_lint/src/reference_casting.rs +++ b/compiler/rustc_lint/src/reference_casting.rs @@ -155,7 +155,7 @@ fn is_cast_from_const_to_mut<'tcx>( let start_ty = cx.typeck_results().node_type(e.hir_id); if let ty::Ref(_, inner_ty, Mutability::Not) = start_ty.kind() { - // If an UnsafeCell method is involved we need to additionaly check the + // If an UnsafeCell method is involved we need to additionally check the // inner type for the presence of the Freeze trait (ie does NOT contain // an UnsafeCell), since in that case we would incorrectly lint on valid casts. // diff --git a/compiler/rustc_llvm/build.rs b/compiler/rustc_llvm/build.rs index fe13162cd4a..ed1e8771323 100644 --- a/compiler/rustc_llvm/build.rs +++ b/compiler/rustc_llvm/build.rs @@ -242,6 +242,12 @@ fn main() { cmd.arg("--system-libs"); } + // We need libkstat for getHostCPUName on SPARC builds. + // See also: https://github.com/llvm/llvm-project/issues/64186 + if target.starts_with("sparcv9") && target.contains("solaris") { + println!("cargo:rustc-link-lib=kstat"); + } + if (target.starts_with("arm") && !target.contains("freebsd")) || target.starts_with("mips-") || target.starts_with("mipsel-") diff --git a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp index 4390486b0de..7ada2eff593 100644 --- a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp +++ b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp @@ -983,6 +983,9 @@ extern "C" LLVMMetadataRef LLVMRustDIBuilderCreateStaticMemberType( unwrapDI<DIType>(Ty), fromRust(Flags), unwrap<llvm::ConstantInt>(val), +#if LLVM_VERSION_GE(18, 0) + llvm::dwarf::DW_TAG_member, +#endif AlignInBits )); } @@ -1105,7 +1108,11 @@ extern "C" LLVMMetadataRef LLVMRustDIBuilderCreateEnumerationType( unwrapDI<DIDescriptor>(Scope), StringRef(Name, NameLen), unwrapDI<DIFile>(File), LineNumber, SizeInBits, AlignInBits, DINodeArray(unwrapDI<MDTuple>(Elements)), - unwrapDI<DIType>(ClassTy), "", IsScoped)); + unwrapDI<DIType>(ClassTy), +#if LLVM_VERSION_GE(18, 0) + /* RunTimeLang */ 0, +#endif + "", IsScoped)); } extern "C" LLVMMetadataRef LLVMRustDIBuilderCreateUnionType( diff --git a/compiler/rustc_log/src/lib.rs b/compiler/rustc_log/src/lib.rs index 0c9ec556549..e3464cb8a2d 100644 --- a/compiler/rustc_log/src/lib.rs +++ b/compiler/rustc_log/src/lib.rs @@ -14,7 +14,7 @@ //! //! ``` //! fn main() { -//! rustc_log::init_env_logger("LOG").unwrap(); +//! rustc_log::init_logger(rustc_log::LoggerConfig::from_env("LOG")).unwrap(); //! //! let edition = rustc_span::edition::Edition::Edition2021; //! rustc_span::create_session_globals_then(edition, || { @@ -52,13 +52,36 @@ use tracing_subscriber::fmt::{ }; use tracing_subscriber::layer::SubscriberExt; -pub fn init_env_logger(env: &str) -> Result<(), Error> { - let filter = match env::var(env) { +/// The values of all the environment variables that matter for configuring a logger. +/// Errors are explicitly preserved so that we can share error handling. +pub struct LoggerConfig { + pub filter: Result<String, VarError>, + pub color_logs: Result<String, VarError>, + pub verbose_entry_exit: Result<String, VarError>, + pub verbose_thread_ids: Result<String, VarError>, + pub backtrace: Result<String, VarError>, +} + +impl LoggerConfig { + pub fn from_env(env: &str) -> Self { + LoggerConfig { + filter: env::var(env), + color_logs: env::var(format!("{env}_COLOR")), + verbose_entry_exit: env::var(format!("{env}_ENTRY_EXIT")), + verbose_thread_ids: env::var(format!("{env}_THREAD_IDS")), + backtrace: env::var(format!("{env}_BACKTRACE")), + } + } +} + +/// Initialize the logger with the given values for the filter, coloring, and other options env variables. +pub fn init_logger(cfg: LoggerConfig) -> Result<(), Error> { + let filter = match cfg.filter { Ok(env) => EnvFilter::new(env), _ => EnvFilter::default().add_directive(Directive::from(LevelFilter::WARN)), }; - let color_logs = match env::var(String::from(env) + "_COLOR") { + let color_logs = match cfg.color_logs { Ok(value) => match value.as_ref() { "always" => true, "never" => false, @@ -69,14 +92,14 @@ pub fn init_env_logger(env: &str) -> Result<(), Error> { Err(VarError::NotUnicode(_value)) => return Err(Error::NonUnicodeColorValue), }; - let verbose_entry_exit = match env::var_os(String::from(env) + "_ENTRY_EXIT") { - None => false, - Some(v) => &v != "0", + let verbose_entry_exit = match cfg.verbose_entry_exit { + Ok(v) => &v != "0", + Err(_) => false, }; - let verbose_thread_ids = match env::var_os(String::from(env) + "_THREAD_IDS") { - None => false, - Some(v) => &v == "1", + let verbose_thread_ids = match cfg.verbose_thread_ids { + Ok(v) => &v == "1", + Err(_) => false, }; let layer = tracing_tree::HierarchicalLayer::default() @@ -91,7 +114,7 @@ pub fn init_env_logger(env: &str) -> Result<(), Error> { .with_thread_names(verbose_thread_ids); let subscriber = tracing_subscriber::Registry::default().with(filter).with(layer); - match env::var(format!("{env}_BACKTRACE")) { + match cfg.backtrace { Ok(str) => { let fmt_layer = tracing_subscriber::fmt::layer() .with_writer(io::stderr) diff --git a/compiler/rustc_macros/src/current_version.rs b/compiler/rustc_macros/src/current_version.rs index 5e3b91c17bf..42ca60a6d8a 100644 --- a/compiler/rustc_macros/src/current_version.rs +++ b/compiler/rustc_macros/src/current_version.rs @@ -1,37 +1,16 @@ use proc_macro::TokenStream; use proc_macro2::Span; use quote::quote; -use syn::parse::{Parse, ParseStream}; -use syn::{parenthesized, parse_macro_input, LitStr, Token}; -pub struct Input { - variable: LitStr, -} - -mod kw { - syn::custom_keyword!(env); -} - -impl Parse for Input { - // Input syntax is `env!("CFG_RELEASE")` to facilitate grepping. - fn parse(input: ParseStream<'_>) -> syn::Result<Self> { - let paren; - input.parse::<kw::env>()?; - input.parse::<Token![!]>()?; - parenthesized!(paren in input); - let variable: LitStr = paren.parse()?; - Ok(Input { variable }) - } -} - -pub(crate) fn current_version(input: TokenStream) -> TokenStream { - let input = parse_macro_input!(input as Input); - - TokenStream::from(match RustcVersion::parse_env_var(&input.variable) { +pub(crate) fn current_version(_input: TokenStream) -> TokenStream { + let env_var = "CFG_RELEASE"; + TokenStream::from(match RustcVersion::parse_cfg_release(env_var) { Ok(RustcVersion { major, minor, patch }) => quote!( + // The produced literal has type `rustc_session::RustcVersion`. Self { major: #major, minor: #minor, patch: #patch } ), - Err(err) => syn::Error::new(Span::call_site(), err).into_compile_error(), + Err(err) => syn::Error::new(Span::call_site(), format!("{env_var} env var: {err}")) + .into_compile_error(), }) } @@ -42,8 +21,8 @@ struct RustcVersion { } impl RustcVersion { - fn parse_env_var(env_var: &LitStr) -> Result<Self, Box<dyn std::error::Error>> { - let value = proc_macro::tracked_env::var(env_var.value())?; + fn parse_cfg_release(env_var: &str) -> Result<Self, Box<dyn std::error::Error>> { + let value = proc_macro::tracked_env::var(env_var)?; Self::parse_str(&value) .ok_or_else(|| format!("failed to parse rustc version: {:?}", value).into()) } diff --git a/compiler/rustc_macros/src/diagnostics/diagnostic.rs b/compiler/rustc_macros/src/diagnostics/diagnostic.rs index 1a8174bfd96..31ad9cdb216 100644 --- a/compiler/rustc_macros/src/diagnostics/diagnostic.rs +++ b/compiler/rustc_macros/src/diagnostics/diagnostic.rs @@ -229,8 +229,8 @@ fn generate_test(slug: &syn::Path, structure: &Structure<'_>) -> TokenStream { } } use std::sync::atomic::{AtomicUsize, Ordering}; - // We need to make sure that the same diagnostic slug can be used multiple times without causing an - // error, so just have a global counter here. + // We need to make sure that the same diagnostic slug can be used multiple times without + // causing an error, so just have a global counter here. static COUNTER: AtomicUsize = AtomicUsize::new(0); let slug = slug.get_ident().unwrap(); let ident = quote::format_ident!("verify_{slug}_{}", COUNTER.fetch_add(1, Ordering::Relaxed)); diff --git a/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs b/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs index e9a5cd9de97..2755a161d91 100644 --- a/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs +++ b/compiler/rustc_macros/src/diagnostics/diagnostic_builder.rs @@ -53,6 +53,7 @@ pub(crate) struct DiagnosticDeriveVariantBuilder<'parent> { /// Slug is a mandatory part of the struct attribute as corresponds to the Fluent message that /// has the actual diagnostic message. pub slug: SpannedOption<Path>, + /// Error codes are a optional part of the struct attribute - this is only set to detect /// multiple specifications. pub code: SpannedOption<()>, @@ -68,7 +69,7 @@ impl DiagnosticDeriveBuilder { /// Call `f` for the struct or for each variant of the enum, returning a `TokenStream` with the /// tokens from `f` wrapped in an `match` expression. Emits errors for use of derive on unions /// or attributes on the type itself when input is an enum. - pub fn each_variant<'s, F>(&mut self, structure: &mut Structure<'s>, f: F) -> TokenStream + pub(crate) fn each_variant<'s, F>(&mut self, structure: &mut Structure<'s>, f: F) -> TokenStream where F: for<'a, 'v> Fn(DiagnosticDeriveVariantBuilder<'a>, &VariantInfo<'v>) -> TokenStream, { @@ -121,7 +122,7 @@ impl DiagnosticDeriveBuilder { impl<'a> DiagnosticDeriveVariantBuilder<'a> { /// Generates calls to `code` and similar functions based on the attributes on the type or /// variant. - pub fn preamble(&mut self, variant: &VariantInfo<'_>) -> TokenStream { + pub(crate) fn preamble(&mut self, variant: &VariantInfo<'_>) -> TokenStream { let ast = variant.ast(); let attrs = &ast.attrs; let preamble = attrs.iter().map(|attr| { @@ -135,7 +136,7 @@ impl<'a> DiagnosticDeriveVariantBuilder<'a> { /// Generates calls to `span_label` and similar functions based on the attributes on fields or /// calls to `set_arg` when no attributes are present. - pub fn body(&mut self, variant: &VariantInfo<'_>) -> TokenStream { + pub(crate) fn body(&mut self, variant: &VariantInfo<'_>) -> TokenStream { let mut body = quote! {}; // Generate `set_arg` calls first.. for binding in variant.bindings().iter().filter(|bi| should_generate_set_arg(bi.ast())) { diff --git a/compiler/rustc_macros/src/diagnostics/subdiagnostic.rs b/compiler/rustc_macros/src/diagnostics/subdiagnostic.rs index 877271ff077..0f9e68cdc50 100644 --- a/compiler/rustc_macros/src/diagnostics/subdiagnostic.rs +++ b/compiler/rustc_macros/src/diagnostics/subdiagnostic.rs @@ -478,7 +478,7 @@ impl<'parent, 'a> SubdiagnosticDeriveVariantBuilder<'parent, 'a> { } } - pub fn into_tokens(&mut self) -> Result<TokenStream, DiagnosticDeriveError> { + pub(crate) fn into_tokens(&mut self) -> Result<TokenStream, DiagnosticDeriveError> { let kind_slugs = self.identify_kind()?; if kind_slugs.is_empty() { if self.is_enum { diff --git a/compiler/rustc_macros/src/diagnostics/utils.rs b/compiler/rustc_macros/src/diagnostics/utils.rs index 12563292181..2700f02e33a 100644 --- a/compiler/rustc_macros/src/diagnostics/utils.rs +++ b/compiler/rustc_macros/src/diagnostics/utils.rs @@ -17,7 +17,7 @@ use synstructure::{BindingInfo, VariantInfo}; use super::error::invalid_attr; thread_local! { - pub static CODE_IDENT_COUNT: RefCell<u32> = RefCell::new(0); + pub(crate) static CODE_IDENT_COUNT: RefCell<u32> = RefCell::new(0); } /// Returns an ident of the form `__code_N` where `N` is incremented once with every call. @@ -208,7 +208,7 @@ impl<'ty> FieldInnerTy<'ty> { } } - pub fn span(&self) -> proc_macro2::Span { + pub(crate) fn span(&self) -> proc_macro2::Span { match self { FieldInnerTy::Option(ty) | FieldInnerTy::Vec(ty) | FieldInnerTy::Plain(ty) => ty.span(), } @@ -537,7 +537,7 @@ impl fmt::Display for SuggestionKind { } impl SuggestionKind { - pub fn to_suggestion_style(&self) -> TokenStream { + pub(crate) fn to_suggestion_style(&self) -> TokenStream { match self { SuggestionKind::Normal => { quote! { rustc_errors::SuggestionStyle::ShowCode } diff --git a/compiler/rustc_macros/src/hash_stable.rs b/compiler/rustc_macros/src/hash_stable.rs index 75a2f7009c2..6d23b9ac99d 100644 --- a/compiler/rustc_macros/src/hash_stable.rs +++ b/compiler/rustc_macros/src/hash_stable.rs @@ -38,33 +38,16 @@ fn parse_attributes(field: &syn::Field) -> Attributes { attrs } -pub fn hash_stable_generic_derive(mut s: synstructure::Structure<'_>) -> proc_macro2::TokenStream { +pub(crate) fn hash_stable_generic_derive( + mut s: synstructure::Structure<'_>, +) -> proc_macro2::TokenStream { let generic: syn::GenericParam = parse_quote!(__CTX); s.add_bounds(synstructure::AddBounds::Generics); s.add_impl_generic(generic); s.add_where_predicate(parse_quote! { __CTX: crate::HashStableContext }); - let body = s.each(|bi| { - let attrs = parse_attributes(bi.ast()); - if attrs.ignore { - quote! {} - } else if let Some(project) = attrs.project { - quote! { - (&#bi.#project).hash_stable(__hcx, __hasher); - } - } else { - quote! { - #bi.hash_stable(__hcx, __hasher); - } - } - }); - let discriminant = match s.ast().data { - syn::Data::Enum(_) => quote! { - ::std::mem::discriminant(self).hash_stable(__hcx, __hasher); - }, - syn::Data::Struct(_) => quote! {}, - syn::Data::Union(_) => panic!("cannot derive on union"), - }; + let discriminant = hash_stable_discriminant(&mut s); + let body = hash_stable_body(&mut s); s.bound_impl( quote!(::rustc_data_structures::stable_hasher::HashStable<__CTX>), @@ -81,32 +64,13 @@ pub fn hash_stable_generic_derive(mut s: synstructure::Structure<'_>) -> proc_ma ) } -pub fn hash_stable_derive(mut s: synstructure::Structure<'_>) -> proc_macro2::TokenStream { +pub(crate) fn hash_stable_derive(mut s: synstructure::Structure<'_>) -> proc_macro2::TokenStream { let generic: syn::GenericParam = parse_quote!('__ctx); s.add_bounds(synstructure::AddBounds::Generics); s.add_impl_generic(generic); - let body = s.each(|bi| { - let attrs = parse_attributes(bi.ast()); - if attrs.ignore { - quote! {} - } else if let Some(project) = attrs.project { - quote! { - (&#bi.#project).hash_stable(__hcx, __hasher); - } - } else { - quote! { - #bi.hash_stable(__hcx, __hasher); - } - } - }); - let discriminant = match s.ast().data { - syn::Data::Enum(_) => quote! { - ::std::mem::discriminant(self).hash_stable(__hcx, __hasher); - }, - syn::Data::Struct(_) => quote! {}, - syn::Data::Union(_) => panic!("cannot derive on union"), - }; + let discriminant = hash_stable_discriminant(&mut s); + let body = hash_stable_body(&mut s); s.bound_impl( quote!( @@ -126,3 +90,30 @@ pub fn hash_stable_derive(mut s: synstructure::Structure<'_>) -> proc_macro2::To }, ) } + +fn hash_stable_discriminant(s: &mut synstructure::Structure<'_>) -> proc_macro2::TokenStream { + match s.ast().data { + syn::Data::Enum(_) => quote! { + ::std::mem::discriminant(self).hash_stable(__hcx, __hasher); + }, + syn::Data::Struct(_) => quote! {}, + syn::Data::Union(_) => panic!("cannot derive on union"), + } +} + +fn hash_stable_body(s: &mut synstructure::Structure<'_>) -> proc_macro2::TokenStream { + s.each(|bi| { + let attrs = parse_attributes(bi.ast()); + if attrs.ignore { + quote! {} + } else if let Some(project) = attrs.project { + quote! { + (&#bi.#project).hash_stable(__hcx, __hasher); + } + } else { + quote! { + #bi.hash_stable(__hcx, __hasher); + } + } + }) +} diff --git a/compiler/rustc_macros/src/lib.rs b/compiler/rustc_macros/src/lib.rs index 193dbd75fbd..a6666636032 100644 --- a/compiler/rustc_macros/src/lib.rs +++ b/compiler/rustc_macros/src/lib.rs @@ -26,6 +26,9 @@ mod symbols; mod type_foldable; mod type_visitable; +// Reads the rust version (e.g. "1.75.0") from the CFG_RELEASE env var and +// produces a `RustcVersion` literal containing that version (e.g. +// `RustcVersion { major: 1, minor: 75, patch: 0 }`). #[proc_macro] pub fn current_rustc_version(input: TokenStream) -> TokenStream { current_version::current_version(input) diff --git a/compiler/rustc_macros/src/symbols.rs b/compiler/rustc_macros/src/symbols.rs index 4129712a6b2..3de4a904e5f 100644 --- a/compiler/rustc_macros/src/symbols.rs +++ b/compiler/rustc_macros/src/symbols.rs @@ -19,7 +19,9 @@ //! ```bash //! cargo install cargo-expand # this is necessary only once //! cd compiler/rustc_span -//! cargo expand > /tmp/rustc_span.rs # it's a big file +//! # The specific version number in CFG_RELEASE doesn't matter. +//! # The output is large. +//! CFG_RELEASE="0.0.0" cargo +nightly expand > /tmp/rustc_span.rs //! ``` use proc_macro2::{Span, TokenStream}; @@ -318,13 +320,4 @@ fn symbols_with_errors(input: TokenStream) -> (TokenStream, Vec<syn::Error>) { }; (output, errors.list) - - // To see the generated code, use the "cargo expand" command. - // Do this once to install: - // cargo install cargo-expand - // - // Then, cd to rustc_span and run: - // cargo expand > /tmp/rustc_span_expanded.rs - // - // and read that file. } diff --git a/compiler/rustc_middle/src/infer/canonical.rs b/compiler/rustc_middle/src/infer/canonical.rs index 64b63f4c5eb..5a957d2c26d 100644 --- a/compiler/rustc_middle/src/infer/canonical.rs +++ b/compiler/rustc_middle/src/infer/canonical.rs @@ -63,7 +63,7 @@ impl CanonicalVarValues<'_> { pub fn is_identity(&self) -> bool { self.var_values.iter().enumerate().all(|(bv, arg)| match arg.unpack() { ty::GenericArgKind::Lifetime(r) => { - matches!(*r, ty::ReLateBound(ty::INNERMOST, br) if br.var.as_usize() == bv) + matches!(*r, ty::ReBound(ty::INNERMOST, br) if br.var.as_usize() == bv) } ty::GenericArgKind::Type(ty) => { matches!(*ty.kind(), ty::Bound(ty::INNERMOST, bt) if bt.var.as_usize() == bv) @@ -79,7 +79,7 @@ impl CanonicalVarValues<'_> { for arg in self.var_values { match arg.unpack() { ty::GenericArgKind::Lifetime(r) => { - if let ty::ReLateBound(ty::INNERMOST, br) = *r + if let ty::ReBound(ty::INNERMOST, br) = *r && var == br.var { var = var + 1; @@ -389,7 +389,7 @@ impl<'tcx> CanonicalVarValues<'tcx> { var: ty::BoundVar::from_usize(i), kind: ty::BrAnon, }; - ty::Region::new_late_bound(tcx, ty::INNERMOST, br).into() + ty::Region::new_bound(tcx, ty::INNERMOST, br).into() } CanonicalVarKind::Effect => ty::Const::new_bound( tcx, diff --git a/compiler/rustc_middle/src/infer/unify_key.rs b/compiler/rustc_middle/src/infer/unify_key.rs index 041a63776d1..6e50e894046 100644 --- a/compiler/rustc_middle/src/infer/unify_key.rs +++ b/compiler/rustc_middle/src/infer/unify_key.rs @@ -58,18 +58,17 @@ impl<'tcx> UnifyValue for UnifiedRegion<'tcx> { fn unify_values(value1: &Self, value2: &Self) -> Result<Self, NoError> { // We pick the value of the least universe because it is compatible with more variables. - // This is *not* necessary for soundness, but it allows more region variables to be - // resolved to the said value. + // This is *not* necessary for completeness. #[cold] fn min_universe<'tcx>(r1: Region<'tcx>, r2: Region<'tcx>) -> Region<'tcx> { cmp::min_by_key(r1, r2, |r| match r.kind() { ty::ReStatic | ty::ReErased - | ty::ReFree(..) - | ty::ReEarlyBound(..) + | ty::ReLateParam(..) + | ty::ReEarlyParam(..) | ty::ReError(_) => ty::UniverseIndex::ROOT, ty::RePlaceholder(placeholder) => placeholder.universe, - ty::ReVar(..) | ty::ReLateBound(..) => bug!("not a universal region"), + ty::ReVar(..) | ty::ReBound(..) => bug!("not a universal region"), }) } diff --git a/compiler/rustc_middle/src/lib.rs b/compiler/rustc_middle/src/lib.rs index 448a3029ae9..fd29e74e905 100644 --- a/compiler/rustc_middle/src/lib.rs +++ b/compiler/rustc_middle/src/lib.rs @@ -59,7 +59,6 @@ #![feature(extract_if)] #![feature(intra_doc_pointers)] #![feature(yeet_expr)] -#![feature(result_option_inspect)] #![feature(const_option)] #![feature(trait_alias)] #![feature(ptr_alignment_type)] diff --git a/compiler/rustc_middle/src/middle/region.rs b/compiler/rustc_middle/src/middle/region.rs index 56fed05c63f..b76d1d6e141 100644 --- a/compiler/rustc_middle/src/middle/region.rs +++ b/compiler/rustc_middle/src/middle/region.rs @@ -77,7 +77,7 @@ use std::ops::Deref; /// picture, but rather the ending point. // // FIXME(pnkfelix): this currently derives `PartialOrd` and `Ord` to -// placate the same deriving in `ty::FreeRegion`, but we may want to +// placate the same deriving in `ty::LateParamRegion`, but we may want to // actually attach a more meaningful ordering to scopes than the one // generated via deriving here. #[derive(Clone, PartialEq, PartialOrd, Eq, Ord, Hash, Copy, TyEncodable, TyDecodable)] diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index 7054cede2d8..874c997c23b 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -1611,14 +1611,29 @@ impl Location { #[derive(Copy, Clone, Debug, PartialEq, Eq)] pub enum DefLocation { Argument, - Body(Location), + Assignment(Location), + CallReturn { call: BasicBlock, target: Option<BasicBlock> }, } impl DefLocation { pub fn dominates(self, location: Location, dominators: &Dominators<BasicBlock>) -> bool { match self { DefLocation::Argument => true, - DefLocation::Body(def) => def.successor_within_block().dominates(location, dominators), + DefLocation::Assignment(def) => { + def.successor_within_block().dominates(location, dominators) + } + DefLocation::CallReturn { target: None, .. } => false, + DefLocation::CallReturn { call, target: Some(target) } => { + // The definition occurs on the call -> target edge. The definition dominates a use + // if and only if the edge is on all paths from the entry to the use. + // + // Note that a call terminator has only one edge that can reach the target, so when + // the call strongly dominates the target, all paths from the entry to the target + // go through the call -> target edge. + call != target + && dominators.dominates(call, target) + && dominators.dominates(target, location.block) + } } } } diff --git a/compiler/rustc_middle/src/mir/query.rs b/compiler/rustc_middle/src/mir/query.rs index 0540eb0efd6..d609965f36f 100644 --- a/compiler/rustc_middle/src/mir/query.rs +++ b/compiler/rustc_middle/src/mir/query.rs @@ -416,7 +416,7 @@ impl<'tcx> ClosureOutlivesSubjectTy<'tcx> { let inner = tcx.fold_regions(ty, |r, depth| match r.kind() { ty::ReVar(vid) => { let br = ty::BoundRegion { var: ty::BoundVar::new(vid.index()), kind: ty::BrAnon }; - ty::Region::new_late_bound(tcx, depth, br) + ty::Region::new_bound(tcx, depth, br) } _ => bug!("unexpected region in ClosureOutlivesSubjectTy: {r:?}"), }); @@ -430,7 +430,7 @@ impl<'tcx> ClosureOutlivesSubjectTy<'tcx> { mut map: impl FnMut(ty::RegionVid) -> ty::Region<'tcx>, ) -> Ty<'tcx> { tcx.fold_regions(self.inner, |r, depth| match r.kind() { - ty::ReLateBound(debruijn, br) => { + ty::ReBound(debruijn, br) => { debug_assert_eq!(debruijn, depth); map(ty::RegionVid::new(br.var.index())) } diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index 551c4a15dd0..e635c3f96ec 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -113,9 +113,9 @@ impl<'tcx> Interner for TyCtxt<'tcx> { type ExprConst = ty::Expr<'tcx>; type Region = Region<'tcx>; - type EarlyBoundRegion = ty::EarlyBoundRegion; + type EarlyParamRegion = ty::EarlyParamRegion; type BoundRegion = ty::BoundRegion; - type FreeRegion = ty::FreeRegion; + type LateParamRegion = ty::LateParamRegion; type InferRegion = ty::RegionVid; type PlaceholderRegion = ty::PlaceholderRegion; @@ -327,7 +327,7 @@ pub struct CommonLifetimes<'tcx> { pub re_vars: Vec<Region<'tcx>>, /// Pre-interned values of the form: - /// `ReLateBound(DebruijnIndex(i), BoundRegion { var: v, kind: BrAnon })` + /// `ReBound(DebruijnIndex(i), BoundRegion { var: v, kind: BrAnon })` /// for small values of `i` and `v`. pub re_late_bounds: Vec<Vec<Region<'tcx>>>, } @@ -402,7 +402,7 @@ impl<'tcx> CommonLifetimes<'tcx> { .map(|i| { (0..NUM_PREINTERNED_RE_LATE_BOUNDS_V) .map(|v| { - mk(ty::ReLateBound( + mk(ty::ReBound( ty::DebruijnIndex::from(i), ty::BoundRegion { var: ty::BoundVar::from(v), kind: ty::BrAnon }, )) @@ -445,14 +445,14 @@ impl<'tcx> CommonConsts<'tcx> { } } -/// This struct contains information regarding the `ReFree(FreeRegion)` corresponding to a lifetime -/// conflict. +/// This struct contains information regarding a free parameter region, +/// either a `ReEarlyParam` or `ReLateParam`. #[derive(Debug)] pub struct FreeRegionInfo { - /// `LocalDefId` corresponding to FreeRegion + /// `LocalDefId` of the free region. pub def_id: LocalDefId, - /// the bound region corresponding to FreeRegion - pub boundregion: ty::BoundRegionKind, + /// the bound region corresponding to free region. + pub bound_region: ty::BoundRegionKind, /// checks if bound region is in Impl Item pub is_impl_item: bool, } @@ -1080,8 +1080,8 @@ impl<'tcx> TyCtxt<'tcx> { pub fn is_suitable_region(self, mut region: Region<'tcx>) -> Option<FreeRegionInfo> { let (suitable_region_binding_scope, bound_region) = loop { let def_id = match region.kind() { - ty::ReFree(fr) => fr.bound_region.get_id()?.as_local()?, - ty::ReEarlyBound(ebr) => ebr.def_id.expect_local(), + ty::ReLateParam(fr) => fr.bound_region.get_id()?.as_local()?, + ty::ReEarlyParam(ebr) => ebr.def_id.expect_local(), _ => return None, // not a free region }; let scope = self.local_parent(def_id); @@ -1102,11 +1102,7 @@ impl<'tcx> TyCtxt<'tcx> { _ => false, }; - Some(FreeRegionInfo { - def_id: suitable_region_binding_scope, - boundregion: bound_region, - is_impl_item, - }) + Some(FreeRegionInfo { def_id: suitable_region_binding_scope, bound_region, is_impl_item }) } /// Given a `DefId` for an `fn`, return all the `dyn` and `impl` traits in its return type. @@ -1743,7 +1739,7 @@ impl<'tcx> TyCtxt<'tcx> { pub fn mk_param_from_def(self, param: &ty::GenericParamDef) -> GenericArg<'tcx> { match param.kind { GenericParamDefKind::Lifetime => { - ty::Region::new_early_bound(self, param.to_early_bound_region_data()).into() + ty::Region::new_early_param(self, param.to_early_bound_region_data()).into() } GenericParamDefKind::Type { .. } => Ty::new_param(self, param.index, param.name).into(), GenericParamDefKind::Const { .. } => ty::Const::new_param( @@ -2040,7 +2036,7 @@ impl<'tcx> TyCtxt<'tcx> { /// Given the def-id of an early-bound lifetime on an RPIT corresponding to /// a duplicated captured lifetime, map it back to the early- or late-bound /// lifetime of the function from which it originally as captured. If it is - /// a late-bound lifetime, this will represent the liberated (`ReFree`) lifetime + /// a late-bound lifetime, this will represent the liberated (`ReLateParam`) lifetime /// of the signature. // FIXME(RPITIT): if we ever synthesize new lifetimes for RPITITs and not just // re-use the generics of the opaque, this function will need to be tweaked slightly. @@ -2079,9 +2075,9 @@ impl<'tcx> TyCtxt<'tcx> { } let generics = self.generics_of(new_parent); - return ty::Region::new_early_bound( + return ty::Region::new_early_param( self, - ty::EarlyBoundRegion { + ty::EarlyParamRegion { def_id: ebv, index: generics .param_def_id_to_index(self, ebv) @@ -2092,7 +2088,7 @@ impl<'tcx> TyCtxt<'tcx> { } Some(resolve_bound_vars::ResolvedArg::LateBound(_, _, lbv)) => { let new_parent = self.parent(lbv); - return ty::Region::new_free( + return ty::Region::new_late_param( self, new_parent, ty::BoundRegionKind::BrNamed( diff --git a/compiler/rustc_middle/src/ty/erase_regions.rs b/compiler/rustc_middle/src/ty/erase_regions.rs index 3371ea3bec8..cfd36fd8c7c 100644 --- a/compiler/rustc_middle/src/ty/erase_regions.rs +++ b/compiler/rustc_middle/src/ty/erase_regions.rs @@ -53,16 +53,11 @@ impl<'tcx> TypeFolder<TyCtxt<'tcx>> for RegionEraserVisitor<'tcx> { } fn fold_region(&mut self, r: ty::Region<'tcx>) -> ty::Region<'tcx> { - // because late-bound regions affect subtyping, we can't - // erase the bound/free distinction, but we can replace - // all free regions with 'erased. - // - // Note that we *CAN* replace early-bound regions -- the - // type system never "sees" those, they get substituted - // away. In codegen, they will always be erased to 'erased - // whenever a substitution occurs. + // We must not erase bound regions. `for<'a> fn(&'a ())` and + // `fn(&'free ())` are different types: they may implement different + // traits and have a different `TypeId`. match *r { - ty::ReLateBound(..) => r, + ty::ReBound(..) => r, _ => self.tcx.lifetimes.re_erased, } } diff --git a/compiler/rustc_middle/src/ty/error.rs b/compiler/rustc_middle/src/ty/error.rs index 738bb5e8b19..b26f98769c1 100644 --- a/compiler/rustc_middle/src/ty/error.rs +++ b/compiler/rustc_middle/src/ty/error.rs @@ -7,8 +7,7 @@ use rustc_hir::def_id::DefId; use rustc_span::symbol::Symbol; use rustc_target::spec::abi; use std::borrow::Cow; -use std::collections::hash_map::DefaultHasher; -use std::hash::{Hash, Hasher}; +use std::hash::{DefaultHasher, Hash, Hasher}; use std::path::PathBuf; #[derive(Clone, Copy, Debug, PartialEq, Eq, TypeFoldable, TypeVisitable)] diff --git a/compiler/rustc_middle/src/ty/fast_reject.rs b/compiler/rustc_middle/src/ty/fast_reject.rs index 75ea53195a3..f95ceeff150 100644 --- a/compiler/rustc_middle/src/ty/fast_reject.rs +++ b/compiler/rustc_middle/src/ty/fast_reject.rs @@ -189,14 +189,14 @@ pub struct DeepRejectCtxt { } impl DeepRejectCtxt { - pub fn args_refs_may_unify<'tcx>( + pub fn args_may_unify<'tcx>( self, obligation_args: GenericArgsRef<'tcx>, impl_args: GenericArgsRef<'tcx>, ) -> bool { iter::zip(obligation_args, impl_args).all(|(obl, imp)| { match (obl.unpack(), imp.unpack()) { - // We don't fast reject based on regions for now. + // We don't fast reject based on regions. (GenericArgKind::Lifetime(_), GenericArgKind::Lifetime(_)) => true, (GenericArgKind::Type(obl), GenericArgKind::Type(imp)) => { self.types_may_unify(obl, imp) @@ -231,7 +231,7 @@ impl DeepRejectCtxt { | ty::Never | ty::Tuple(..) | ty::FnPtr(..) - | ty::Foreign(..) => {} + | ty::Foreign(..) => debug_assert!(impl_ty.is_known_rigid()), ty::FnDef(..) | ty::Closure(..) | ty::Coroutine(..) @@ -260,7 +260,7 @@ impl DeepRejectCtxt { }, ty::Adt(obl_def, obl_args) => match k { &ty::Adt(impl_def, impl_args) => { - obl_def == impl_def && self.args_refs_may_unify(obl_args, impl_args) + obl_def == impl_def && self.args_may_unify(obl_args, impl_args) } _ => false, }, diff --git a/compiler/rustc_middle/src/ty/flags.rs b/compiler/rustc_middle/src/ty/flags.rs index ec36bdc5a51..4d7b12662c6 100644 --- a/compiler/rustc_middle/src/ty/flags.rs +++ b/compiler/rustc_middle/src/ty/flags.rs @@ -137,7 +137,7 @@ impl FlagComputation { &ty::Bound(debruijn, _) => { self.add_bound_var(debruijn); - self.add_flags(TypeFlags::HAS_TY_LATE_BOUND); + self.add_flags(TypeFlags::HAS_TY_BOUND); } &ty::Placeholder(..) => { @@ -294,7 +294,7 @@ impl FlagComputation { fn add_region(&mut self, r: ty::Region<'_>) { self.add_flags(r.type_flags()); - if let ty::ReLateBound(debruijn, _) = *r { + if let ty::ReBound(debruijn, _) = *r { self.add_bound_var(debruijn); } } @@ -317,7 +317,7 @@ impl FlagComputation { } ty::ConstKind::Bound(debruijn, _) => { self.add_bound_var(debruijn); - self.add_flags(TypeFlags::HAS_CT_LATE_BOUND); + self.add_flags(TypeFlags::HAS_CT_BOUND); } ty::ConstKind::Param(_) => { self.add_flags(TypeFlags::HAS_CT_PARAM); diff --git a/compiler/rustc_middle/src/ty/fold.rs b/compiler/rustc_middle/src/ty/fold.rs index 00529a1e066..cff0d4df673 100644 --- a/compiler/rustc_middle/src/ty/fold.rs +++ b/compiler/rustc_middle/src/ty/fold.rs @@ -68,12 +68,10 @@ impl<'tcx> TyCtxt<'tcx> { /// Folds over the substructure of a type, visiting its component /// types and all regions that occur *free* within it. /// -/// That is, `Ty` can contain function or method types that bind -/// regions at the call site (`ReLateBound`), and occurrences of -/// regions (aka "lifetimes") that are bound within a type are not -/// visited by this folder; only regions that occur free will be +/// That is, function pointer types and trait object can introduce +/// new bound regions which are not visited by this visitors as +/// they are not free; only regions that occur free will be /// visited by `fld_r`. - pub struct RegionFolder<'a, 'tcx> { tcx: TyCtxt<'tcx>, @@ -117,7 +115,7 @@ impl<'a, 'tcx> TypeFolder<TyCtxt<'tcx>> for RegionFolder<'a, 'tcx> { #[instrument(skip(self), level = "debug", ret)] fn fold_region(&mut self, r: ty::Region<'tcx>) -> ty::Region<'tcx> { match *r { - ty::ReLateBound(debruijn, _) if debruijn < self.current_index => { + ty::ReBound(debruijn, _) if debruijn < self.current_index => { debug!(?self.current_index, "skipped bound region"); r } @@ -205,15 +203,15 @@ where fn fold_region(&mut self, r: ty::Region<'tcx>) -> ty::Region<'tcx> { match *r { - ty::ReLateBound(debruijn, br) if debruijn == self.current_index => { + ty::ReBound(debruijn, br) if debruijn == self.current_index => { let region = self.delegate.replace_region(br); - if let ty::ReLateBound(debruijn1, br) = *region { - // If the callback returns a late-bound region, + if let ty::ReBound(debruijn1, br) = *region { + // If the callback returns a bound region, // that region should always use the INNERMOST // debruijn index. Then we adjust it to the // correct depth. assert_eq!(debruijn1, ty::INNERMOST); - ty::Region::new_late_bound(self.tcx, debruijn, br) + ty::Region::new_bound(self.tcx, debruijn, br) } else { region } @@ -328,7 +326,7 @@ impl<'tcx> TyCtxt<'tcx> { T: TypeFoldable<TyCtxt<'tcx>>, { self.replace_late_bound_regions_uncached(value, |br| { - ty::Region::new_free(self, all_outlive_scope, br.kind) + ty::Region::new_late_param(self, all_outlive_scope, br.kind) }) } @@ -341,7 +339,7 @@ impl<'tcx> TyCtxt<'tcx> { value, FnMutDelegate { regions: &mut |r: ty::BoundRegion| { - ty::Region::new_late_bound( + ty::Region::new_bound( self, ty::INNERMOST, ty::BoundRegion { var: shift_bv(r.var), kind: r.kind }, @@ -388,7 +386,7 @@ impl<'tcx> TyCtxt<'tcx> { .or_insert_with(|| ty::BoundVariableKind::Region(ty::BrAnon)) .expect_region(); let br = ty::BoundRegion { var, kind }; - ty::Region::new_late_bound(self.tcx, ty::INNERMOST, br) + ty::Region::new_bound(self.tcx, ty::INNERMOST, br) } fn replace_ty(&mut self, bt: ty::BoundTy) -> Ty<'tcx> { let entry = self.map.entry(bt.var); @@ -454,9 +452,9 @@ impl<'tcx> TypeFolder<TyCtxt<'tcx>> for Shifter<'tcx> { fn fold_region(&mut self, r: ty::Region<'tcx>) -> ty::Region<'tcx> { match *r { - ty::ReLateBound(debruijn, br) if debruijn >= self.current_index => { + ty::ReBound(debruijn, br) if debruijn >= self.current_index => { let debruijn = debruijn.shifted_in(self.amount); - ty::Region::new_late_bound(self.tcx, debruijn, br) + ty::Region::new_bound(self.tcx, debruijn, br) } _ => r, } @@ -496,8 +494,8 @@ pub fn shift_region<'tcx>( amount: u32, ) -> ty::Region<'tcx> { match *region { - ty::ReLateBound(debruijn, br) if amount > 0 => { - ty::Region::new_late_bound(tcx, debruijn.shifted_in(amount), br) + ty::ReBound(debruijn, br) if amount > 0 => { + ty::Region::new_bound(tcx, debruijn.shifted_in(amount), br) } _ => region, } diff --git a/compiler/rustc_middle/src/ty/generic_args.rs b/compiler/rustc_middle/src/ty/generic_args.rs index 41a1bf04e5f..8fd08c724d2 100644 --- a/compiler/rustc_middle/src/ty/generic_args.rs +++ b/compiler/rustc_middle/src/ty/generic_args.rs @@ -809,7 +809,7 @@ impl<'a, 'tcx> TypeFolder<TyCtxt<'tcx>> for ArgFolder<'a, 'tcx> { fn fold_region(&mut self, r: ty::Region<'tcx>) -> ty::Region<'tcx> { #[cold] #[inline(never)] - fn region_param_out_of_range(data: ty::EarlyBoundRegion, args: &[GenericArg<'_>]) -> ! { + fn region_param_out_of_range(data: ty::EarlyParamRegion, args: &[GenericArg<'_>]) -> ! { bug!( "Region parameter out of range when substituting in region {} (index={}, args = {:?})", data.name, @@ -820,7 +820,7 @@ impl<'a, 'tcx> TypeFolder<TyCtxt<'tcx>> for ArgFolder<'a, 'tcx> { #[cold] #[inline(never)] - fn region_param_invalid(data: ty::EarlyBoundRegion, other: GenericArgKind<'_>) -> ! { + fn region_param_invalid(data: ty::EarlyParamRegion, other: GenericArgKind<'_>) -> ! { bug!( "Unexpected parameter {:?} when substituting in region {} (index={})", other, @@ -835,7 +835,7 @@ impl<'a, 'tcx> TypeFolder<TyCtxt<'tcx>> for ArgFolder<'a, 'tcx> { // regions that appear in a function signature is done using // the specialized routine `ty::replace_late_regions()`. match *r { - ty::ReEarlyBound(data) => { + ty::ReEarlyParam(data) => { let rk = self.args.get(data.index as usize).map(|k| k.unpack()); match rk { Some(GenericArgKind::Lifetime(lt)) => self.shift_region_through_binders(lt), @@ -843,8 +843,8 @@ impl<'a, 'tcx> TypeFolder<TyCtxt<'tcx>> for ArgFolder<'a, 'tcx> { None => region_param_out_of_range(data, self.args), } } - ty::ReLateBound(..) - | ty::ReFree(_) + ty::ReBound(..) + | ty::ReLateParam(_) | ty::ReStatic | ty::RePlaceholder(_) | ty::ReErased diff --git a/compiler/rustc_middle/src/ty/generics.rs b/compiler/rustc_middle/src/ty/generics.rs index 888ee1d237a..4a6e3cfacd3 100644 --- a/compiler/rustc_middle/src/ty/generics.rs +++ b/compiler/rustc_middle/src/ty/generics.rs @@ -6,7 +6,7 @@ use rustc_hir::def_id::DefId; use rustc_span::symbol::{kw, Symbol}; use rustc_span::Span; -use super::{Clause, EarlyBoundRegion, InstantiatedPredicates, ParamConst, ParamTy, Ty, TyCtxt}; +use super::{Clause, InstantiatedPredicates, ParamConst, ParamTy, Ty, TyCtxt}; #[derive(Clone, Debug, TyEncodable, TyDecodable, HashStable)] pub enum GenericParamDefKind { @@ -62,9 +62,9 @@ pub struct GenericParamDef { } impl GenericParamDef { - pub fn to_early_bound_region_data(&self) -> ty::EarlyBoundRegion { + pub fn to_early_bound_region_data(&self) -> ty::EarlyParamRegion { if let GenericParamDefKind::Lifetime = self.kind { - ty::EarlyBoundRegion { def_id: self.def_id, index: self.index, name: self.name } + ty::EarlyParamRegion { def_id: self.def_id, index: self.index, name: self.name } } else { bug!("cannot convert a non-lifetime parameter def to an early bound region") } @@ -260,10 +260,10 @@ impl<'tcx> Generics { } } - /// Returns the `GenericParamDef` associated with this `EarlyBoundRegion`. + /// Returns the `GenericParamDef` associated with this `EarlyParamRegion`. pub fn region_param( &'tcx self, - param: &EarlyBoundRegion, + param: &ty::EarlyParamRegion, tcx: TyCtxt<'tcx>, ) -> &'tcx GenericParamDef { let param = self.param_at(param.index as usize, tcx); diff --git a/compiler/rustc_middle/src/ty/layout.rs b/compiler/rustc_middle/src/ty/layout.rs index 4223e503f5e..aca6acd783b 100644 --- a/compiler/rustc_middle/src/ty/layout.rs +++ b/compiler/rustc_middle/src/ty/layout.rs @@ -215,7 +215,7 @@ pub enum LayoutError<'tcx> { SizeOverflow(Ty<'tcx>), NormalizationFailure(Ty<'tcx>, NormalizationError<'tcx>), ReferencesError(ErrorGuaranteed), - Cycle, + Cycle(ErrorGuaranteed), } impl<'tcx> LayoutError<'tcx> { @@ -226,7 +226,7 @@ impl<'tcx> LayoutError<'tcx> { Unknown(_) => middle_unknown_layout, SizeOverflow(_) => middle_values_too_big, NormalizationFailure(_, _) => middle_cannot_be_normalized, - Cycle => middle_cycle, + Cycle(_) => middle_cycle, ReferencesError(_) => middle_layout_references_error, } } @@ -240,7 +240,7 @@ impl<'tcx> LayoutError<'tcx> { NormalizationFailure(ty, e) => { E::NormalizationFailure { ty, failure_ty: e.get_type_for_failure() } } - Cycle => E::Cycle, + Cycle(_) => E::Cycle, ReferencesError(_) => E::ReferencesError, } } @@ -261,7 +261,7 @@ impl<'tcx> fmt::Display for LayoutError<'tcx> { t, e.get_type_for_failure() ), - LayoutError::Cycle => write!(f, "a cycle occurred during layout computation"), + LayoutError::Cycle(_) => write!(f, "a cycle occurred during layout computation"), LayoutError::ReferencesError(_) => write!(f, "the type has an unknown layout"), } } @@ -333,7 +333,7 @@ impl<'tcx> SizeSkeleton<'tcx> { Err(err @ LayoutError::Unknown(_)) => err, // We can't extract SizeSkeleton info from other layout errors Err( - e @ LayoutError::Cycle + e @ LayoutError::Cycle(_) | e @ LayoutError::SizeOverflow(_) | e @ LayoutError::NormalizationFailure(..) | e @ LayoutError::ReferencesError(_), diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index e1c616ba078..559bf9fb825 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -98,11 +98,12 @@ pub use self::sty::BoundRegionKind::*; pub use self::sty::{ AliasTy, Article, Binder, BoundRegion, BoundRegionKind, BoundTy, BoundTyKind, BoundVar, BoundVariableKind, CanonicalPolyFnSig, ClauseKind, ClosureArgs, ClosureArgsParts, ConstKind, - ConstVid, CoroutineArgs, CoroutineArgsParts, EarlyBoundRegion, EffectVid, ExistentialPredicate, - ExistentialProjection, ExistentialTraitRef, FnSig, FreeRegion, GenSig, InlineConstArgs, - InlineConstArgsParts, ParamConst, ParamTy, PolyExistentialPredicate, PolyExistentialProjection, - PolyExistentialTraitRef, PolyFnSig, PolyGenSig, PolyTraitRef, PredicateKind, Region, - RegionKind, RegionVid, TraitRef, TyKind, TypeAndMut, UpvarArgs, VarianceDiagInfo, + ConstVid, CoroutineArgs, CoroutineArgsParts, EarlyParamRegion, EffectVid, ExistentialPredicate, + ExistentialProjection, ExistentialTraitRef, FnSig, GenSig, InlineConstArgs, + InlineConstArgsParts, LateParamRegion, ParamConst, ParamTy, PolyExistentialPredicate, + PolyExistentialProjection, PolyExistentialTraitRef, PolyFnSig, PolyGenSig, PolyTraitRef, + PredicateKind, Region, RegionKind, RegionVid, TraitRef, TyKind, TypeAndMut, UpvarArgs, + VarianceDiagInfo, }; pub use self::trait_def::TraitDef; pub use self::typeck_results::{ @@ -463,7 +464,7 @@ pub struct CReaderCacheKey { #[rustc_pass_by_value] pub struct Ty<'tcx>(Interned<'tcx, WithCachedTypeInfo<TyKind<'tcx>>>); -impl ty::EarlyBoundRegion { +impl EarlyParamRegion { /// Does this early bound region have a name? Early bound regions normally /// always have names except when using anonymous lifetimes (`'_`). pub fn has_name(&self) -> bool { diff --git a/compiler/rustc_middle/src/ty/opaque_types.rs b/compiler/rustc_middle/src/ty/opaque_types.rs index 8d895732dff..1305f63bdbc 100644 --- a/compiler/rustc_middle/src/ty/opaque_types.rs +++ b/compiler/rustc_middle/src/ty/opaque_types.rs @@ -102,8 +102,9 @@ impl<'tcx> TypeFolder<TyCtxt<'tcx>> for ReverseMapper<'tcx> { // Ignore bound regions and `'static` regions that appear in the // type, we only need to remap regions that reference lifetimes // from the function declaration. - // This would ignore `'r` in a type like `for<'r> fn(&'r u32)`. - ty::ReLateBound(..) | ty::ReStatic => return r, + // + // E.g. We ignore `'r` in a type like `for<'r> fn(&'r u32)`. + ty::ReBound(..) | ty::ReStatic => return r, // If regions have been erased (by writeback), don't try to unerase // them. @@ -112,7 +113,7 @@ impl<'tcx> TypeFolder<TyCtxt<'tcx>> for ReverseMapper<'tcx> { ty::ReError(_) => return r, // The regions that we expect from borrow checking. - ty::ReEarlyBound(_) | ty::ReFree(_) => {} + ty::ReEarlyParam(_) | ty::ReLateParam(_) => {} ty::RePlaceholder(_) | ty::ReVar(_) => { // All of the regions in the type should either have been diff --git a/compiler/rustc_middle/src/ty/print/pretty.rs b/compiler/rustc_middle/src/ty/print/pretty.rs index baf160bcc99..ad070dcc9e3 100644 --- a/compiler/rustc_middle/src/ty/print/pretty.rs +++ b/compiler/rustc_middle/src/ty/print/pretty.rs @@ -2158,10 +2158,10 @@ impl<'tcx> PrettyPrinter<'tcx> for FmtPrinter<'_, 'tcx> { let identify_regions = self.tcx.sess.opts.unstable_opts.identify_regions; match *region { - ty::ReEarlyBound(ref data) => data.has_name(), + ty::ReEarlyParam(ref data) => data.has_name(), - ty::ReLateBound(_, ty::BoundRegion { kind: br, .. }) - | ty::ReFree(ty::FreeRegion { bound_region: br, .. }) + ty::ReBound(_, ty::BoundRegion { kind: br, .. }) + | ty::ReLateParam(ty::LateParamRegion { bound_region: br, .. }) | ty::RePlaceholder(ty::Placeholder { bound: ty::BoundRegion { kind: br, .. }, .. }) => { @@ -2228,14 +2228,14 @@ impl<'tcx> FmtPrinter<'_, 'tcx> { // to fit that into a short string. Hence the recommendation to use // `explain_region()` or `note_and_explain_region()`. match *region { - ty::ReEarlyBound(ref data) => { + ty::ReEarlyParam(ref data) => { if data.name != kw::Empty { p!(write("{}", data.name)); return Ok(()); } } - ty::ReLateBound(_, ty::BoundRegion { kind: br, .. }) - | ty::ReFree(ty::FreeRegion { bound_region: br, .. }) + ty::ReBound(_, ty::BoundRegion { kind: br, .. }) + | ty::ReLateParam(ty::LateParamRegion { bound_region: br, .. }) | ty::RePlaceholder(ty::Placeholder { bound: ty::BoundRegion { kind: br, .. }, .. }) => { @@ -2315,7 +2315,7 @@ impl<'a, 'tcx> ty::TypeFolder<TyCtxt<'tcx>> for RegionFolder<'a, 'tcx> { fn fold_region(&mut self, r: ty::Region<'tcx>) -> ty::Region<'tcx> { let name = &mut self.name; let region = match *r { - ty::ReLateBound(db, br) if db >= self.current_index => { + ty::ReBound(db, br) if db >= self.current_index => { *self.region_map.entry(br).or_insert_with(|| name(Some(db), self.current_index, br)) } ty::RePlaceholder(ty::PlaceholderRegion { @@ -2338,9 +2338,9 @@ impl<'a, 'tcx> ty::TypeFolder<TyCtxt<'tcx>> for RegionFolder<'a, 'tcx> { } _ => return r, }; - if let ty::ReLateBound(debruijn1, br) = *region { + if let ty::ReBound(debruijn1, br) = *region { assert_eq!(debruijn1, ty::INNERMOST); - ty::Region::new_late_bound(self.tcx, self.current_index, br) + ty::Region::new_bound(self.tcx, self.current_index, br) } else { region } @@ -2450,7 +2450,7 @@ impl<'tcx> FmtPrinter<'_, 'tcx> { if let Some(lt_idx) = lifetime_idx { if lt_idx > binder_level_idx { let kind = ty::BrNamed(CRATE_DEF_ID.to_def_id(), name); - return ty::Region::new_late_bound( + return ty::Region::new_bound( tcx, ty::INNERMOST, ty::BoundRegion { var: br.var, kind }, @@ -2466,7 +2466,7 @@ impl<'tcx> FmtPrinter<'_, 'tcx> { if let Some(lt_idx) = lifetime_idx { if lt_idx > binder_level_idx { let kind = ty::BrNamed(def_id, name); - return ty::Region::new_late_bound( + return ty::Region::new_bound( tcx, ty::INNERMOST, ty::BoundRegion { var: br.var, kind }, @@ -2480,7 +2480,7 @@ impl<'tcx> FmtPrinter<'_, 'tcx> { if let Some(lt_idx) = lifetime_idx { if lt_idx > binder_level_idx { let kind = br.kind; - return ty::Region::new_late_bound( + return ty::Region::new_bound( tcx, ty::INNERMOST, ty::BoundRegion { var: br.var, kind }, @@ -2496,11 +2496,7 @@ impl<'tcx> FmtPrinter<'_, 'tcx> { start_or_continue(self, "for<", ", "); do_continue(self, name); } - ty::Region::new_late_bound( - tcx, - ty::INNERMOST, - ty::BoundRegion { var: br.var, kind }, - ) + ty::Region::new_bound(tcx, ty::INNERMOST, ty::BoundRegion { var: br.var, kind }) }; let mut folder = RegionFolder { tcx, diff --git a/compiler/rustc_middle/src/ty/structural_impls.rs b/compiler/rustc_middle/src/ty/structural_impls.rs index 6af68bc5dba..e223ffd7c5d 100644 --- a/compiler/rustc_middle/src/ty/structural_impls.rs +++ b/compiler/rustc_middle/src/ty/structural_impls.rs @@ -79,9 +79,9 @@ impl fmt::Debug for ty::BoundRegionKind { } } -impl fmt::Debug for ty::FreeRegion { +impl fmt::Debug for ty::LateParamRegion { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - write!(f, "ReFree({:?}, {:?})", self.scope, self.bound_region) + write!(f, "ReLateParam({:?}, {:?})", self.scope, self.bound_region) } } @@ -444,7 +444,7 @@ TrivialTypeTraversalImpls! { crate::ty::Placeholder<crate::ty::BoundRegion>, crate::ty::Placeholder<crate::ty::BoundTy>, crate::ty::Placeholder<ty::BoundVar>, - crate::ty::FreeRegion, + crate::ty::LateParamRegion, crate::ty::InferTy, crate::ty::IntVarValue, crate::ty::adjustment::PointerCoercion, diff --git a/compiler/rustc_middle/src/ty/sty.rs b/compiler/rustc_middle/src/ty/sty.rs index 44592b10d55..2b1e57f5871 100644 --- a/compiler/rustc_middle/src/ty/sty.rs +++ b/compiler/rustc_middle/src/ty/sty.rs @@ -61,9 +61,9 @@ pub struct TypeAndMut<'tcx> { #[derive(Clone, PartialEq, PartialOrd, Eq, Ord, Hash, TyEncodable, TyDecodable, Copy)] #[derive(HashStable)] -/// A "free" region `fr` can be interpreted as "some region +/// The parameter representation of late-bound function parameters, "some region /// at least as big as the scope `fr.scope`". -pub struct FreeRegion { +pub struct LateParamRegion { pub scope: DefId, pub bound_region: BoundRegionKind, } @@ -1468,15 +1468,15 @@ pub struct Region<'tcx>(pub Interned<'tcx, RegionKind<'tcx>>); impl<'tcx> Region<'tcx> { #[inline] - pub fn new_early_bound( + pub fn new_early_param( tcx: TyCtxt<'tcx>, - early_bound_region: ty::EarlyBoundRegion, + early_bound_region: ty::EarlyParamRegion, ) -> Region<'tcx> { - tcx.intern_region(ty::ReEarlyBound(early_bound_region)) + tcx.intern_region(ty::ReEarlyParam(early_bound_region)) } #[inline] - pub fn new_late_bound( + pub fn new_bound( tcx: TyCtxt<'tcx>, debruijn: ty::DebruijnIndex, bound_region: ty::BoundRegion, @@ -1488,17 +1488,17 @@ impl<'tcx> Region<'tcx> { { re } else { - tcx.intern_region(ty::ReLateBound(debruijn, bound_region)) + tcx.intern_region(ty::ReBound(debruijn, bound_region)) } } #[inline] - pub fn new_free( + pub fn new_late_param( tcx: TyCtxt<'tcx>, scope: DefId, bound_region: ty::BoundRegionKind, ) -> Region<'tcx> { - tcx.intern_region(ty::ReFree(ty::FreeRegion { scope, bound_region })) + tcx.intern_region(ty::ReLateParam(ty::LateParamRegion { scope, bound_region })) } #[inline] @@ -1549,10 +1549,10 @@ impl<'tcx> Region<'tcx> { /// to avoid the cost of the `match`. pub fn new_from_kind(tcx: TyCtxt<'tcx>, kind: RegionKind<'tcx>) -> Region<'tcx> { match kind { - ty::ReEarlyBound(region) => Region::new_early_bound(tcx, region), - ty::ReLateBound(debruijn, region) => Region::new_late_bound(tcx, debruijn, region), - ty::ReFree(ty::FreeRegion { scope, bound_region }) => { - Region::new_free(tcx, scope, bound_region) + ty::ReEarlyParam(region) => Region::new_early_param(tcx, region), + ty::ReBound(debruijn, region) => Region::new_bound(tcx, debruijn, region), + ty::ReLateParam(ty::LateParamRegion { scope, bound_region }) => { + Region::new_late_param(tcx, scope, bound_region) } ty::ReStatic => tcx.lifetimes.re_static, ty::ReVar(vid) => Region::new_var(tcx, vid), @@ -1574,13 +1574,13 @@ impl<'tcx> Deref for Region<'tcx> { #[derive(Copy, Clone, PartialEq, Eq, Hash, TyEncodable, TyDecodable, PartialOrd, Ord)] #[derive(HashStable)] -pub struct EarlyBoundRegion { +pub struct EarlyParamRegion { pub def_id: DefId, pub index: u32, pub name: Symbol, } -impl fmt::Debug for EarlyBoundRegion { +impl fmt::Debug for EarlyParamRegion { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { write!(f, "{:?}, {}, {}", self.def_id, self.index, self.name) } @@ -1722,9 +1722,9 @@ impl<'tcx> Region<'tcx> { pub fn get_name(self) -> Option<Symbol> { if self.has_name() { match *self { - ty::ReEarlyBound(ebr) => Some(ebr.name), - ty::ReLateBound(_, br) => br.kind.get_name(), - ty::ReFree(fr) => fr.bound_region.get_name(), + ty::ReEarlyParam(ebr) => Some(ebr.name), + ty::ReBound(_, br) => br.kind.get_name(), + ty::ReLateParam(fr) => fr.bound_region.get_name(), ty::ReStatic => Some(kw::StaticLifetime), ty::RePlaceholder(placeholder) => placeholder.bound.kind.get_name(), _ => None, @@ -1744,9 +1744,9 @@ impl<'tcx> Region<'tcx> { /// Is this region named by the user? pub fn has_name(self) -> bool { match *self { - ty::ReEarlyBound(ebr) => ebr.has_name(), - ty::ReLateBound(_, br) => br.kind.is_named(), - ty::ReFree(fr) => fr.bound_region.is_named(), + ty::ReEarlyParam(ebr) => ebr.has_name(), + ty::ReBound(_, br) => br.kind.is_named(), + ty::ReLateParam(fr) => fr.bound_region.is_named(), ty::ReStatic => true, ty::ReVar(..) => false, ty::RePlaceholder(placeholder) => placeholder.bound.kind.is_named(), @@ -1771,8 +1771,8 @@ impl<'tcx> Region<'tcx> { } #[inline] - pub fn is_late_bound(self) -> bool { - matches!(*self, ty::ReLateBound(..)) + pub fn is_bound(self) -> bool { + matches!(*self, ty::ReBound(..)) } #[inline] @@ -1783,7 +1783,7 @@ impl<'tcx> Region<'tcx> { #[inline] pub fn bound_at_or_above_binder(self, index: ty::DebruijnIndex) -> bool { match *self { - ty::ReLateBound(debruijn, _) => debruijn >= index, + ty::ReBound(debruijn, _) => debruijn >= index, _ => false, } } @@ -1802,20 +1802,20 @@ impl<'tcx> Region<'tcx> { flags = flags | TypeFlags::HAS_FREE_LOCAL_REGIONS; flags = flags | TypeFlags::HAS_RE_PLACEHOLDER; } - ty::ReEarlyBound(..) => { + ty::ReEarlyParam(..) => { flags = flags | TypeFlags::HAS_FREE_REGIONS; flags = flags | TypeFlags::HAS_FREE_LOCAL_REGIONS; flags = flags | TypeFlags::HAS_RE_PARAM; } - ty::ReFree { .. } => { + ty::ReLateParam { .. } => { flags = flags | TypeFlags::HAS_FREE_REGIONS; flags = flags | TypeFlags::HAS_FREE_LOCAL_REGIONS; } ty::ReStatic => { flags = flags | TypeFlags::HAS_FREE_REGIONS; } - ty::ReLateBound(..) => { - flags = flags | TypeFlags::HAS_RE_LATE_BOUND; + ty::ReBound(..) => { + flags = flags | TypeFlags::HAS_RE_BOUND; } ty::ReErased => { flags = flags | TypeFlags::HAS_RE_ERASED; @@ -1851,22 +1851,28 @@ impl<'tcx> Region<'tcx> { /// function might return the `DefId` of a closure. pub fn free_region_binding_scope(self, tcx: TyCtxt<'_>) -> DefId { match *self { - ty::ReEarlyBound(br) => tcx.parent(br.def_id), - ty::ReFree(fr) => fr.scope, + ty::ReEarlyParam(br) => tcx.parent(br.def_id), + ty::ReLateParam(fr) => fr.scope, _ => bug!("free_region_binding_scope invoked on inappropriate region: {:?}", self), } } /// True for free regions other than `'static`. - pub fn is_free(self) -> bool { - matches!(*self, ty::ReEarlyBound(_) | ty::ReFree(_)) + pub fn is_param(self) -> bool { + matches!(*self, ty::ReEarlyParam(_) | ty::ReLateParam(_)) } - /// True if `self` is a free region or static. - pub fn is_free_or_static(self) -> bool { + /// True for free region in the current context. + /// + /// This is the case for `'static` and param regions. + pub fn is_free(self) -> bool { match *self { - ty::ReStatic => true, - _ => self.is_free(), + ty::ReStatic | ty::ReEarlyParam(..) | ty::ReLateParam(..) => true, + ty::ReVar(..) + | ty::RePlaceholder(..) + | ty::ReBound(..) + | ty::ReErased + | ty::ReError(..) => false, } } diff --git a/compiler/rustc_middle/src/ty/typeck_results.rs b/compiler/rustc_middle/src/ty/typeck_results.rs index e9240d1b268..914ff1fabd1 100644 --- a/compiler/rustc_middle/src/ty/typeck_results.rs +++ b/compiler/rustc_middle/src/ty/typeck_results.rs @@ -126,7 +126,7 @@ pub struct TypeckResults<'tcx> { /// fn(&'a u32) -> u32 /// ``` /// - /// Note that `'a` is not bound (it would be an `ReFree`) and + /// Note that `'a` is not bound (it would be an `ReLateParam`) and /// that the `Foo` opaque type is replaced by its hidden type. liberated_fn_sigs: ItemLocalMap<ty::FnSig<'tcx>>, @@ -638,7 +638,7 @@ impl<'tcx> IsIdentity for CanonicalUserType<'tcx> { }, GenericArgKind::Lifetime(r) => match *r { - ty::ReLateBound(debruijn, br) => { + ty::ReBound(debruijn, br) => { // We only allow a `ty::INNERMOST` index in substitutions. assert_eq!(debruijn, ty::INNERMOST); cvar == br.var diff --git a/compiler/rustc_middle/src/ty/util.rs b/compiler/rustc_middle/src/ty/util.rs index a251518d145..e9f65d99a2e 100644 --- a/compiler/rustc_middle/src/ty/util.rs +++ b/compiler/rustc_middle/src/ty/util.rs @@ -35,12 +35,14 @@ pub struct Discr<'tcx> { #[derive(Copy, Clone, Debug, PartialEq, Eq)] pub enum CheckRegions { No, - /// Only permit early bound regions. This is useful for Adts which - /// can never have late bound regions. - OnlyEarlyBound, - /// Permit both late bound and early bound regions. Use this for functions, - /// which frequently have late bound regions. - Bound, + /// Only permit parameter regions. This should be used + /// for everything apart from functions, which may use + /// `ReBound` to represent late-bound regions. + OnlyParam, + /// Check region parameters from a function definition. + /// Allows `ReEarlyParam` and `ReBound` to handle early + /// and late-bound region parameters. + FromFunction, } #[derive(Copy, Clone, Debug)] @@ -431,7 +433,7 @@ impl<'tcx> TyCtxt<'tcx> { .filter(|&(_, k)| { match k.unpack() { GenericArgKind::Lifetime(region) => match region.kind() { - ty::ReEarlyBound(ref ebr) => { + ty::ReEarlyParam(ref ebr) => { !impl_generics.region_param(ebr, self).pure_wrt_drop } // Error: not a region param @@ -468,17 +470,17 @@ impl<'tcx> TyCtxt<'tcx> { for arg in args { match arg.unpack() { GenericArgKind::Lifetime(lt) => match (ignore_regions, lt.kind()) { - (CheckRegions::Bound, ty::ReLateBound(di, reg)) => { + (CheckRegions::FromFunction, ty::ReBound(di, reg)) => { if !seen_late.insert((di, reg)) { return Err(NotUniqueParam::DuplicateParam(lt.into())); } } - (CheckRegions::OnlyEarlyBound | CheckRegions::Bound, ty::ReEarlyBound(p)) => { + (CheckRegions::OnlyParam | CheckRegions::FromFunction, ty::ReEarlyParam(p)) => { if !seen.insert(p.index) { return Err(NotUniqueParam::DuplicateParam(lt.into())); } } - (CheckRegions::OnlyEarlyBound | CheckRegions::Bound, _) => { + (CheckRegions::OnlyParam | CheckRegions::FromFunction, _) => { return Err(NotUniqueParam::NotParam(lt.into())); } (CheckRegions::No, _) => {} diff --git a/compiler/rustc_middle/src/ty/visit.rs b/compiler/rustc_middle/src/ty/visit.rs index 8fc5c030277..f14232d3435 100644 --- a/compiler/rustc_middle/src/ty/visit.rs +++ b/compiler/rustc_middle/src/ty/visit.rs @@ -111,16 +111,16 @@ pub trait TypeVisitableExt<'tcx>: TypeVisitable<TyCtxt<'tcx>> { } /// True if there are any late-bound regions - fn has_late_bound_regions(&self) -> bool { - self.has_type_flags(TypeFlags::HAS_RE_LATE_BOUND) + fn has_bound_regions(&self) -> bool { + self.has_type_flags(TypeFlags::HAS_RE_BOUND) } /// True if there are any late-bound non-region variables - fn has_non_region_late_bound(&self) -> bool { - self.has_type_flags(TypeFlags::HAS_LATE_BOUND - TypeFlags::HAS_RE_LATE_BOUND) + fn has_non_region_bound_vars(&self) -> bool { + self.has_type_flags(TypeFlags::HAS_BOUND_VARS - TypeFlags::HAS_RE_BOUND) } - /// True if there are any late-bound variables - fn has_late_bound_vars(&self) -> bool { - self.has_type_flags(TypeFlags::HAS_LATE_BOUND) + /// True if there are any bound variables + fn has_bound_vars(&self) -> bool { + self.has_type_flags(TypeFlags::HAS_BOUND_VARS) } /// Indicates whether this value still has parameters/placeholders/inference variables @@ -204,7 +204,7 @@ impl<'tcx> TyCtxt<'tcx> { fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<Self::BreakTy> { match *r { - ty::ReLateBound(debruijn, _) if debruijn < self.outer_index => { + ty::ReBound(debruijn, _) if debruijn < self.outer_index => { ControlFlow::Continue(()) } _ => { @@ -337,7 +337,7 @@ impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for ValidateBoundVars<'tcx> { fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<Self::BreakTy> { match *r { - ty::ReLateBound(index, br) if index == self.binder_index => { + ty::ReBound(index, br) if index == self.binder_index => { if self.bound_vars.len() <= br.var.as_usize() { bug!("Not enough bound vars: {:?} not found in {:?}", br, self.bound_vars); } @@ -613,7 +613,7 @@ impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for LateBoundRegionsCollector { } fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<Self::BreakTy> { - if let ty::ReLateBound(debruijn, br) = *r { + if let ty::ReBound(debruijn, br) = *r { if debruijn == self.current_index { self.regions.insert(br.kind); } diff --git a/compiler/rustc_middle/src/values.rs b/compiler/rustc_middle/src/values.rs index f30993c9a69..2b4ae373626 100644 --- a/compiler/rustc_middle/src/values.rs +++ b/compiler/rustc_middle/src/values.rs @@ -114,12 +114,11 @@ impl<'tcx> Value<TyCtxt<'tcx>> for ty::EarlyBinder<ty::Binder<'_, ty::FnSig<'_>> } impl<'tcx, T> Value<TyCtxt<'tcx>> for Result<T, &'_ ty::layout::LayoutError<'_>> { - fn from_cycle_error(_tcx: TyCtxt<'tcx>, _cycle: &[QueryInfo], _guar: ErrorGuaranteed) -> Self { + fn from_cycle_error(_tcx: TyCtxt<'tcx>, _cycle: &[QueryInfo], guar: ErrorGuaranteed) -> Self { // tcx.arena.alloc cannot be used because we are not allowed to use &'tcx LayoutError under // min_specialization. Since this is an error path anyways, leaking doesn't matter (and really, // tcx.arena.alloc is pretty much equal to leaking). - // FIXME: `Cycle` should carry the ErrorGuaranteed - Err(Box::leak(Box::new(ty::layout::LayoutError::Cycle))) + Err(Box::leak(Box::new(ty::layout::LayoutError::Cycle(guar)))) } } diff --git a/compiler/rustc_mir_build/src/build/custom/mod.rs b/compiler/rustc_mir_build/src/build/custom/mod.rs index 3de2f45ad9a..d302d538ad4 100644 --- a/compiler/rustc_mir_build/src/build/custom/mod.rs +++ b/compiler/rustc_mir_build/src/build/custom/mod.rs @@ -162,6 +162,19 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { expected: expected.to_string(), } } + + fn stmt_error(&self, stmt: StmtId, expected: &'static str) -> ParseError { + let stmt = &self.thir[stmt]; + let span = match stmt.kind { + StmtKind::Expr { expr, .. } => self.thir[expr].span, + StmtKind::Let { span, .. } => span, + }; + ParseError { + span, + item_description: format!("{:?}", stmt.kind), + expected: expected.to_string(), + } + } } type PResult<T> = Result<T, ParseError>; diff --git a/compiler/rustc_mir_build/src/build/custom/parse.rs b/compiler/rustc_mir_build/src/build/custom/parse.rs index e2ab2cb90c7..a6f9caada2d 100644 --- a/compiler/rustc_mir_build/src/build/custom/parse.rs +++ b/compiler/rustc_mir_build/src/build/custom/parse.rs @@ -27,10 +27,13 @@ macro_rules! parse_by_kind { $expr_name:pat, $expected:literal, $( - @call($name:literal, $args:ident) => $call_expr:expr, + @call($name:ident, $args:ident) => $call_expr:expr, )* $( - $pat:pat => $expr:expr, + @variant($adt:ident, $variant:ident) => $variant_expr:expr, + )* + $( + $pat:pat $(if $guard:expr)? => $expr:expr, )* ) => {{ let expr_id = $self.preparse($expr_id); @@ -42,14 +45,20 @@ macro_rules! parse_by_kind { ExprKind::Call { ty, fun: _, args: $args, .. } if { match ty.kind() { ty::FnDef(did, _) => { - $self.tcx.is_diagnostic_item(rustc_span::Symbol::intern($name), *did) + $self.tcx.is_diagnostic_item(rustc_span::sym::$name, *did) } _ => false, } } => $call_expr, )* $( - $pat => $expr, + ExprKind::Adt(box AdtExpr { adt_def, variant_index, .. }) if { + $self.tcx.is_diagnostic_item(rustc_span::sym::$adt, adt_def.did()) && + adt_def.variants()[*variant_index].name == rustc_span::sym::$variant + } => $variant_expr, + )* + $( + $pat $(if $guard)? => $expr, )* #[allow(unreachable_patterns)] _ => return Err($self.expr_error(expr_id, $expected)) @@ -172,7 +181,8 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { ExprKind::Block { block } => &self.thir[*block].stmts, ); for (i, block_def) in block_defs.iter().enumerate() { - let block = self.parse_block_def(self.statement_as_expr(*block_def)?)?; + let is_cleanup = self.body.basic_blocks_mut()[BasicBlock::from_usize(i)].is_cleanup; + let block = self.parse_block_def(self.statement_as_expr(*block_def)?, is_cleanup)?; self.body.basic_blocks_mut()[BasicBlock::from_usize(i)] = block; } @@ -181,15 +191,28 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { fn parse_block_decls(&mut self, stmts: impl Iterator<Item = StmtId>) -> PResult<()> { for stmt in stmts { - let (var, _, _) = self.parse_let_statement(stmt)?; - let data = BasicBlockData::new(None); - let block = self.body.basic_blocks_mut().push(data); - self.block_map.insert(var, block); + self.parse_basic_block_decl(stmt)?; } - Ok(()) } + fn parse_basic_block_decl(&mut self, stmt: StmtId) -> PResult<()> { + match &self.thir[stmt].kind { + StmtKind::Let { pattern, initializer: Some(initializer), .. } => { + let (var, ..) = self.parse_var(pattern)?; + let mut data = BasicBlockData::new(None); + data.is_cleanup = parse_by_kind!(self, *initializer, _, "basic block declaration", + @variant(mir_basic_block, Normal) => false, + @variant(mir_basic_block, Cleanup) => true, + ); + let block = self.body.basic_blocks_mut().push(data); + self.block_map.insert(var, block); + Ok(()) + } + _ => Err(self.stmt_error(stmt, "let statement with an initializer")), + } + } + fn parse_local_decls(&mut self, mut stmts: impl Iterator<Item = StmtId>) -> PResult<()> { let (ret_var, ..) = self.parse_let_statement(stmts.next().unwrap())?; self.local_map.insert(ret_var, Local::from_u32(0)); @@ -219,7 +242,7 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { }; let span = self.thir[expr].span; let (name, operand) = parse_by_kind!(self, expr, _, "debuginfo", - @call("mir_debuginfo", args) => { + @call(mir_debuginfo, args) => { (args[0], args[1]) }, ); @@ -281,12 +304,13 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { } } - fn parse_block_def(&self, expr_id: ExprId) -> PResult<BasicBlockData<'tcx>> { + fn parse_block_def(&self, expr_id: ExprId, is_cleanup: bool) -> PResult<BasicBlockData<'tcx>> { let block = parse_by_kind!(self, expr_id, _, "basic block", ExprKind::Block { block } => &self.thir[*block], ); let mut data = BasicBlockData::new(None); + data.is_cleanup = is_cleanup; for stmt_id in &*block.stmts { let stmt = self.statement_as_expr(*stmt_id)?; let span = self.thir[stmt].span; 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 fd2c57a0a6f..4ce7f831c87 100644 --- a/compiler/rustc_mir_build/src/build/custom/parse/instruction.rs +++ b/compiler/rustc_mir_build/src/build/custom/parse/instruction.rs @@ -13,19 +13,19 @@ use super::{parse_by_kind, PResult, ParseCtxt}; impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { pub fn parse_statement(&self, expr_id: ExprId) -> PResult<StatementKind<'tcx>> { parse_by_kind!(self, expr_id, _, "statement", - @call("mir_storage_live", args) => { + @call(mir_storage_live, args) => { Ok(StatementKind::StorageLive(self.parse_local(args[0])?)) }, - @call("mir_storage_dead", args) => { + @call(mir_storage_dead, args) => { Ok(StatementKind::StorageDead(self.parse_local(args[0])?)) }, - @call("mir_deinit", args) => { + @call(mir_deinit, args) => { Ok(StatementKind::Deinit(Box::new(self.parse_place(args[0])?))) }, - @call("mir_retag", args) => { + @call(mir_retag, args) => { Ok(StatementKind::Retag(RetagKind::Default, Box::new(self.parse_place(args[0])?))) }, - @call("mir_set_discriminant", args) => { + @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 { @@ -43,24 +43,30 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { pub fn parse_terminator(&self, expr_id: ExprId) -> PResult<TerminatorKind<'tcx>> { parse_by_kind!(self, expr_id, expr, "terminator", - @call("mir_return", _args) => { + @call(mir_return, _args) => { Ok(TerminatorKind::Return) }, - @call("mir_goto", args) => { + @call(mir_goto, args) => { Ok(TerminatorKind::Goto { target: self.parse_block(args[0])? } ) }, - @call("mir_unreachable", _args) => { + @call(mir_unreachable, _args) => { Ok(TerminatorKind::Unreachable) }, - @call("mir_drop", args) => { + @call(mir_unwind_resume, _args) => { + Ok(TerminatorKind::UnwindResume) + }, + @call(mir_unwind_terminate, args) => { + Ok(TerminatorKind::UnwindTerminate(self.parse_unwind_terminate_reason(args[0])?)) + }, + @call(mir_drop, args) => { Ok(TerminatorKind::Drop { place: self.parse_place(args[0])?, target: self.parse_block(args[1])?, - unwind: UnwindAction::Continue, + unwind: self.parse_unwind_action(args[2])?, replace: false, }) }, - @call("mir_call", args) => { + @call(mir_call, args) => { self.parse_call(args) }, ExprKind::Match { scrutinee, arms, .. } => { @@ -70,6 +76,34 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { ) } + fn parse_unwind_terminate_reason(&self, expr_id: ExprId) -> PResult<UnwindTerminateReason> { + parse_by_kind!(self, expr_id, _, "unwind terminate reason", + @variant(mir_unwind_terminate_reason, Abi) => { + Ok(UnwindTerminateReason::Abi) + }, + @variant(mir_unwind_terminate_reason, InCleanup) => { + Ok(UnwindTerminateReason::InCleanup) + }, + ) + } + + fn parse_unwind_action(&self, expr_id: ExprId) -> PResult<UnwindAction> { + parse_by_kind!(self, expr_id, _, "unwind action", + @call(mir_unwind_continue, _args) => { + Ok(UnwindAction::Continue) + }, + @call(mir_unwind_unreachable, _args) => { + Ok(UnwindAction::Unreachable) + }, + @call(mir_unwind_terminate, args) => { + Ok(UnwindAction::Terminate(self.parse_unwind_terminate_reason(args[0])?)) + }, + @call(mir_unwind_cleanup, args) => { + Ok(UnwindAction::Cleanup(self.parse_block(args[0])?)) + }, + ) + } + fn parse_match(&self, arms: &[ArmId], span: Span) -> PResult<SwitchTargets> { let Some((otherwise, rest)) = arms.split_last() else { return Err(ParseError { @@ -113,6 +147,7 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { ); let destination = self.parse_place(destination)?; let target = self.parse_block(args[1])?; + let unwind = self.parse_unwind_action(args[2])?; parse_by_kind!(self, call, _, "function call", ExprKind::Call { fun, args, from_hir_call, fn_span, .. } => { @@ -126,7 +161,7 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { args, destination, target: Some(target), - unwind: UnwindAction::Continue, + unwind, call_source: if *from_hir_call { CallSource::Normal } else { CallSource::OverloadedOperator }, @@ -138,25 +173,25 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { fn parse_rvalue(&self, expr_id: ExprId) -> PResult<Rvalue<'tcx>> { parse_by_kind!(self, expr_id, expr, "rvalue", - @call("mir_discriminant", args) => self.parse_place(args[0]).map(Rvalue::Discriminant), - @call("mir_cast_transmute", args) => { + @call(mir_discriminant, args) => self.parse_place(args[0]).map(Rvalue::Discriminant), + @call(mir_cast_transmute, args) => { let source = self.parse_operand(args[0])?; Ok(Rvalue::Cast(CastKind::Transmute, source, expr.ty)) }, - @call("mir_checked", args) => { + @call(mir_checked, args) => { parse_by_kind!(self, args[0], _, "binary op", ExprKind::Binary { op, lhs, rhs } => Ok(Rvalue::CheckedBinaryOp( *op, Box::new((self.parse_operand(*lhs)?, self.parse_operand(*rhs)?)) )), ) }, - @call("mir_offset", args) => { + @call(mir_offset, args) => { let ptr = self.parse_operand(args[0])?; let offset = self.parse_operand(args[1])?; Ok(Rvalue::BinaryOp(BinOp::Offset, Box::new((ptr, offset)))) }, - @call("mir_len", args) => Ok(Rvalue::Len(self.parse_place(args[0])?)), - @call("mir_copy_for_deref", args) => Ok(Rvalue::CopyForDeref(self.parse_place(args[0])?)), + @call(mir_len, args) => Ok(Rvalue::Len(self.parse_place(args[0])?)), + @call(mir_copy_for_deref, args) => Ok(Rvalue::CopyForDeref(self.parse_place(args[0])?)), ExprKind::Borrow { borrow_kind, arg } => Ok( Rvalue::Ref(self.tcx.lifetimes.re_erased, *borrow_kind, self.parse_place(*arg)?) ), @@ -206,9 +241,9 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { pub fn parse_operand(&self, expr_id: ExprId) -> PResult<Operand<'tcx>> { parse_by_kind!(self, expr_id, expr, "operand", - @call("mir_move", args) => self.parse_place(args[0]).map(Operand::Move), - @call("mir_static", args) => self.parse_static(args[0]), - @call("mir_static_mut", args) => self.parse_static(args[0]), + @call(mir_move, args) => self.parse_place(args[0]).map(Operand::Move), + @call(mir_static, args) => self.parse_static(args[0]), + @call(mir_static_mut, args) => self.parse_static(args[0]), ExprKind::Literal { .. } | ExprKind::NamedConst { .. } | ExprKind::NonHirLiteral { .. } @@ -229,7 +264,7 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { 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) => { + @call(mir_field, args) => { let (parent, ty) = self.parse_place_inner(args[0])?; let field = FieldIdx::from_u32(self.parse_integer_literal(args[1])? as u32); let field_ty = ty.field_ty(self.tcx, field); @@ -237,7 +272,7 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { let place = parent.project_deeper(&[proj], self.tcx); return Ok((place, PlaceTy::from_ty(field_ty))); }, - @call("mir_variant", args) => { + @call(mir_variant, args) => { (args[0], PlaceElem::Downcast( None, VariantIdx::from_u32(self.parse_integer_literal(args[1])? as u32) @@ -245,7 +280,7 @@ impl<'tcx, 'body> ParseCtxt<'tcx, 'body> { }, ExprKind::Deref { arg } => { parse_by_kind!(self, *arg, _, "does not matter", - @call("mir_make_place", args) => return self.parse_place_inner(args[0]), + @call(mir_make_place, args) => return self.parse_place_inner(args[0]), _ => (*arg, PlaceElem::Deref), ) }, diff --git a/compiler/rustc_mir_build/src/build/mod.rs b/compiler/rustc_mir_build/src/build/mod.rs index 7c729016521..886d805454d 100644 --- a/compiler/rustc_mir_build/src/build/mod.rs +++ b/compiler/rustc_mir_build/src/build/mod.rs @@ -656,17 +656,7 @@ fn construct_error(tcx: TyCtxt<'_>, def_id: LocalDefId, guar: ErrorGuaranteed) - let args = args.as_coroutine(); let yield_ty = args.yield_ty(); let return_ty = args.return_ty(); - let self_ty = Ty::new_adt( - tcx, - tcx.adt_def(tcx.lang_items().pin_type().unwrap()), - tcx.mk_args(&[Ty::new_mut_ref(tcx, tcx.lifetimes.re_erased, coroutine_ty).into()]), - ); - let coroutine_state = Ty::new_adt( - tcx, - tcx.adt_def(tcx.lang_items().coroutine_state().unwrap()), - tcx.mk_args(&[yield_ty.into(), return_ty.into()]), - ); - (vec![self_ty, args.resume_ty()], coroutine_state, Some(yield_ty)) + (vec![coroutine_ty, args.resume_ty()], return_ty, Some(yield_ty)) } dk => bug!("{:?} is not a body: {:?}", def_id, dk), }; diff --git a/compiler/rustc_mir_build/src/thir/cx/mod.rs b/compiler/rustc_mir_build/src/thir/cx/mod.rs index b6adb383fa6..bcd9140f0e1 100644 --- a/compiler/rustc_mir_build/src/thir/cx/mod.rs +++ b/compiler/rustc_mir_build/src/thir/cx/mod.rs @@ -132,7 +132,7 @@ impl<'tcx> Cx<'tcx> { var: ty::BoundVar::from_usize(bound_vars.len() - 1), kind: ty::BrEnv, }; - let env_region = ty::Region::new_late_bound(self.tcx, ty::INNERMOST, br); + let env_region = ty::Region::new_bound(self.tcx, ty::INNERMOST, br); let closure_env_ty = self.tcx.closure_env_ty(closure_def_id, closure_args, env_region).unwrap(); let liberated_closure_env_ty = self.tcx.erase_late_bound_regions( diff --git a/compiler/rustc_mir_transform/src/coverage/spans.rs b/compiler/rustc_mir_transform/src/coverage/spans.rs index 704eea413e1..b318134ae67 100644 --- a/compiler/rustc_mir_transform/src/coverage/spans.rs +++ b/compiler/rustc_mir_transform/src/coverage/spans.rs @@ -381,6 +381,12 @@ impl<'a> CoverageSpansGenerator<'a> { let merged_prefix_len = self.curr_original_span.lo() - curr.span.lo(); let after_macro_bang = merged_prefix_len + BytePos(visible_macro.as_str().len() as u32 + 1); + if self.curr().span.lo() + after_macro_bang > self.curr().span.hi() { + // Something is wrong with the macro name span; + // return now to avoid emitting malformed mappings. + // FIXME(#117788): Track down why this happens. + return; + } let mut macro_name_cov = curr.clone(); self.curr_mut().span = curr.span.with_lo(curr.span.lo() + after_macro_bang); macro_name_cov.span = diff --git a/compiler/rustc_mir_transform/src/remove_zsts.rs b/compiler/rustc_mir_transform/src/remove_zsts.rs index 5aa3c3cfe4d..9f59f9d1245 100644 --- a/compiler/rustc_mir_transform/src/remove_zsts.rs +++ b/compiler/rustc_mir_transform/src/remove_zsts.rs @@ -17,6 +17,11 @@ impl<'tcx> MirPass<'tcx> for RemoveZsts { if tcx.type_of(body.source.def_id()).instantiate_identity().is_coroutine() { return; } + + if !tcx.consider_optimizing(|| format!("RemoveZsts - {:?}", body.source.def_id())) { + return; + } + let param_env = tcx.param_env_reveal_all_normalized(body.source.def_id()); let local_decls = &body.local_decls; let mut replacer = Replacer { tcx, param_env, local_decls }; @@ -125,12 +130,6 @@ impl<'tcx> MutVisitor<'tcx> for Replacer<'_, 'tcx> { if let Some(place_for_ty) = place_for_ty && let ty = place_for_ty.ty(self.local_decls, self.tcx).ty && self.known_to_be_zst(ty) - && self.tcx.consider_optimizing(|| { - format!( - "RemoveZsts - Place: {:?} SourceInfo: {:?}", - place_for_ty, statement.source_info - ) - }) { statement.make_nop(); } else { diff --git a/compiler/rustc_mir_transform/src/ssa.rs b/compiler/rustc_mir_transform/src/ssa.rs index 1f59c790b4e..3a6e1ef3488 100644 --- a/compiler/rustc_mir_transform/src/ssa.rs +++ b/compiler/rustc_mir_transform/src/ssa.rs @@ -40,7 +40,8 @@ impl SsaLocals { let dominators = body.basic_blocks.dominators(); let direct_uses = IndexVec::from_elem(0, &body.local_decls); - let mut visitor = SsaVisitor { assignments, assignment_order, dominators, direct_uses }; + let mut visitor = + SsaVisitor { body, assignments, assignment_order, dominators, direct_uses }; for local in body.args_iter() { visitor.assignments[local] = Set1::One(DefLocation::Argument); @@ -110,7 +111,7 @@ impl SsaLocals { body: &'a Body<'tcx>, ) -> impl Iterator<Item = (Local, &'a Rvalue<'tcx>, Location)> + 'a { self.assignment_order.iter().filter_map(|&local| { - if let Set1::One(DefLocation::Body(loc)) = self.assignments[local] { + if let Set1::One(DefLocation::Assignment(loc)) = self.assignments[local] { let stmt = body.stmt_at(loc).left()?; // `loc` must point to a direct assignment to `local`. let Some((target, rvalue)) = stmt.kind.as_assign() else { bug!() }; @@ -134,21 +135,21 @@ impl SsaLocals { AssignedValue::Arg, Location { block: START_BLOCK, statement_index: 0 }, ), - Set1::One(DefLocation::Body(loc)) => { + Set1::One(DefLocation::Assignment(loc)) => { let bb = &mut basic_blocks[loc.block]; - let value = if loc.statement_index < bb.statements.len() { - // `loc` must point to a direct assignment to `local`. - let stmt = &mut bb.statements[loc.statement_index]; - let StatementKind::Assign(box (target, ref mut rvalue)) = stmt.kind else { - bug!() - }; - assert_eq!(target.as_local(), Some(local)); - AssignedValue::Rvalue(rvalue) - } else { - let term = bb.terminator_mut(); - AssignedValue::Terminator(&mut term.kind) + // `loc` must point to a direct assignment to `local`. + let stmt = &mut bb.statements[loc.statement_index]; + let StatementKind::Assign(box (target, ref mut rvalue)) = stmt.kind else { + bug!() }; - f(local, value, loc) + assert_eq!(target.as_local(), Some(local)); + f(local, AssignedValue::Rvalue(rvalue), loc) + } + Set1::One(DefLocation::CallReturn { call, .. }) => { + let bb = &mut basic_blocks[call]; + let loc = Location { block: call, statement_index: bb.statements.len() }; + let term = bb.terminator_mut(); + f(local, AssignedValue::Terminator(&mut term.kind), loc) } _ => {} } @@ -201,14 +202,15 @@ impl SsaLocals { } } -struct SsaVisitor<'a> { +struct SsaVisitor<'tcx, 'a> { + body: &'a Body<'tcx>, dominators: &'a Dominators<BasicBlock>, assignments: IndexVec<Local, Set1<DefLocation>>, assignment_order: Vec<Local>, direct_uses: IndexVec<Local, u32>, } -impl SsaVisitor<'_> { +impl SsaVisitor<'_, '_> { fn check_dominates(&mut self, local: Local, loc: Location) { let set = &mut self.assignments[local]; let assign_dominates = match *set { @@ -224,7 +226,7 @@ impl SsaVisitor<'_> { } } -impl<'tcx> Visitor<'tcx> for SsaVisitor<'_> { +impl<'tcx> Visitor<'tcx> for SsaVisitor<'tcx, '_> { fn visit_local(&mut self, local: Local, ctxt: PlaceContext, loc: Location) { match ctxt { PlaceContext::MutatingUse(MutatingUseContext::Projection) @@ -250,9 +252,18 @@ impl<'tcx> Visitor<'tcx> for SsaVisitor<'_> { fn visit_place(&mut self, place: &Place<'tcx>, ctxt: PlaceContext, loc: Location) { let location = match ctxt { - PlaceContext::MutatingUse( - MutatingUseContext::Store | MutatingUseContext::Call | MutatingUseContext::Yield, - ) => Some(DefLocation::Body(loc)), + PlaceContext::MutatingUse(MutatingUseContext::Store) => { + Some(DefLocation::Assignment(loc)) + } + PlaceContext::MutatingUse(MutatingUseContext::Call) => { + let call = loc.block; + let TerminatorKind::Call { target, .. } = + self.body.basic_blocks[call].terminator().kind + else { + bug!() + }; + Some(DefLocation::CallReturn { call, target }) + } _ => None, }; if let Some(location) = location @@ -359,7 +370,7 @@ impl StorageLiveLocals { for (statement_index, statement) in bbdata.statements.iter().enumerate() { if let StatementKind::StorageLive(local) = statement.kind { storage_live[local] - .insert(DefLocation::Body(Location { block, statement_index })); + .insert(DefLocation::Assignment(Location { block, statement_index })); } } } diff --git a/compiler/rustc_parse/src/lexer/tokentrees.rs b/compiler/rustc_parse/src/lexer/tokentrees.rs index 31d91fe80bd..db795ce9f72 100644 --- a/compiler/rustc_parse/src/lexer/tokentrees.rs +++ b/compiler/rustc_parse/src/lexer/tokentrees.rs @@ -5,7 +5,8 @@ use super::{StringReader, UnmatchedDelim}; use rustc_ast::token::{self, Delimiter, Token}; use rustc_ast::tokenstream::{DelimSpan, Spacing, TokenStream, TokenTree}; use rustc_ast_pretty::pprust::token_to_string; -use rustc_errors::PErr; +use rustc_errors::{Applicability, PErr}; +use rustc_span::symbol::kw; pub(super) struct TokenTreesReader<'a> { string_reader: StringReader<'a>, @@ -116,24 +117,8 @@ impl<'a> TokenTreesReader<'a> { // We stop at any delimiter so we can try to recover if the user // uses an incorrect delimiter. let (tts, res) = self.parse_token_trees(/* is_delimited */ true); - if let Err(mut errs) = res { - // If there are unclosed delims, see if there are diff markers and if so, point them - // out instead of complaining about the unclosed delims. - let mut parser = crate::stream_to_parser(self.string_reader.sess, tts, None); - let mut diff_errs = vec![]; - while parser.token != token::Eof { - if let Err(diff_err) = parser.err_diff_marker() { - diff_errs.push(diff_err); - } - parser.bump(); - } - if !diff_errs.is_empty() { - errs.iter_mut().for_each(|err| { - err.delay_as_bug(); - }); - return Err(diff_errs); - } - return Err(errs); + if let Err(errs) = res { + return Err(self.unclosed_delim_err(tts, errs)); } // Expand to cover the entire delimited token tree @@ -220,6 +205,62 @@ impl<'a> TokenTreesReader<'a> { Ok(TokenTree::Delimited(delim_span, open_delim, tts)) } + fn unclosed_delim_err(&mut self, tts: TokenStream, mut errs: Vec<PErr<'a>>) -> Vec<PErr<'a>> { + // If there are unclosed delims, see if there are diff markers and if so, point them + // out instead of complaining about the unclosed delims. + let mut parser = crate::stream_to_parser(self.string_reader.sess, tts, None); + let mut diff_errs = vec![]; + // Suggest removing a `{` we think appears in an `if`/`while` condition + // We want to suggest removing a `{` only if we think we're in an `if`/`while` condition, but + // we have no way of tracking this in the lexer itself, so we piggyback on the parser + let mut in_cond = false; + while parser.token != token::Eof { + if let Err(diff_err) = parser.err_diff_marker() { + diff_errs.push(diff_err); + } else if parser.is_keyword_ahead(0, &[kw::If, kw::While]) { + in_cond = true; + } else if matches!( + parser.token.kind, + token::CloseDelim(Delimiter::Brace) | token::FatArrow + ) { + // end of the `if`/`while` body, or the end of a `match` guard + in_cond = false; + } else if in_cond && parser.token == token::OpenDelim(Delimiter::Brace) { + // Store the `&&` and `let` to use their spans later when creating the diagnostic + let maybe_andand = parser.look_ahead(1, |t| t.clone()); + let maybe_let = parser.look_ahead(2, |t| t.clone()); + if maybe_andand == token::OpenDelim(Delimiter::Brace) { + // This might be the beginning of the `if`/`while` body (i.e., the end of the condition) + in_cond = false; + } else if maybe_andand == token::AndAnd && maybe_let.is_keyword(kw::Let) { + let mut err = parser.struct_span_err( + parser.token.span, + "found a `{` in the middle of a let-chain", + ); + err.span_suggestion( + parser.token.span, + "consider removing this brace to parse the `let` as part of the same chain", + "", + Applicability::MachineApplicable, + ); + err.span_label( + maybe_andand.span.to(maybe_let.span), + "you might have meant to continue the let-chain here", + ); + errs.push(err); + } + } + parser.bump(); + } + if !diff_errs.is_empty() { + errs.iter_mut().for_each(|err| { + err.delay_as_bug(); + }); + return diff_errs; + } + return errs; + } + fn close_delim_err(&mut self, delim: Delimiter) -> PErr<'a> { // An unexpected closing delimiter (i.e., there is no // matching opening delimiter). diff --git a/compiler/rustc_parse/src/parser/mod.rs b/compiler/rustc_parse/src/parser/mod.rs index 1a7ae406911..76f3f21a516 100644 --- a/compiler/rustc_parse/src/parser/mod.rs +++ b/compiler/rustc_parse/src/parser/mod.rs @@ -1115,7 +1115,7 @@ impl<'a> Parser<'a> { } /// Returns whether any of the given keywords are `dist` tokens ahead of the current one. - fn is_keyword_ahead(&self, dist: usize, kws: &[Symbol]) -> bool { + pub(crate) fn is_keyword_ahead(&self, dist: usize, kws: &[Symbol]) -> bool { self.look_ahead(dist, |t| kws.iter().any(|&kw| t.is_keyword(kw))) } diff --git a/compiler/rustc_parse/src/parser/ty.rs b/compiler/rustc_parse/src/parser/ty.rs index be2cbaf3020..dc0f1396523 100644 --- a/compiler/rustc_parse/src/parser/ty.rs +++ b/compiler/rustc_parse/src/parser/ty.rs @@ -135,7 +135,7 @@ impl<'a> Parser<'a> { ) } - /// Parse a type suitable for a field defintion. + /// Parse a type suitable for a field definition. /// The difference from `parse_ty` is that this version /// allows anonymous structs and unions. pub fn parse_ty_for_field_def(&mut self) -> PResult<'a, P<Ty>> { diff --git a/compiler/rustc_parse_format/src/lib.rs b/compiler/rustc_parse_format/src/lib.rs index 7b6153eea09..e886db3da29 100644 --- a/compiler/rustc_parse_format/src/lib.rs +++ b/compiler/rustc_parse_format/src/lib.rs @@ -9,13 +9,10 @@ html_playground_url = "https://play.rust-lang.org/", test(attr(deny(warnings))) )] -#![cfg_attr(not(bootstrap), doc(rust_logo))] -#![cfg_attr(not(bootstrap), allow(internal_features))] -#![cfg_attr(not(bootstrap), feature(rustdoc_internals))] #![deny(rustc::untranslatable_diagnostic)] #![deny(rustc::diagnostic_outside_of_impl)] -// We want to be able to build this crate with a stable compiler, so no -// `#![feature]` attributes should be added. +// WARNING: We want to be able to build this crate with a stable compiler, +// so no `#![feature]` attributes should be added! use rustc_lexer::unescape; pub use Alignment::*; diff --git a/compiler/rustc_passes/src/dead.rs b/compiler/rustc_passes/src/dead.rs index 2e8c58b0241..6b2b842543a 100644 --- a/compiler/rustc_passes/src/dead.rs +++ b/compiler/rustc_passes/src/dead.rs @@ -314,7 +314,7 @@ impl<'tcx> MarkSymbolVisitor<'tcx> { // for the `#[expect]` case. // // Note that an item can and will be duplicated on the worklist with different - // `ComesFromAllowExpect`, particulary if it was added from the + // `ComesFromAllowExpect`, particularly if it was added from the // `effective_visibilities` query or from the `#[allow]`/`#[expect]` checks, // this "duplication" is essential as otherwise a function with `#[expect]` // called from a `pub fn` may be falsely reported as not live, falsely diff --git a/compiler/rustc_privacy/src/lib.rs b/compiler/rustc_privacy/src/lib.rs index 4bb7e65747f..4b3b82c59cf 100644 --- a/compiler/rustc_privacy/src/lib.rs +++ b/compiler/rustc_privacy/src/lib.rs @@ -1756,7 +1756,7 @@ impl<'tcx> PrivateItemsInPublicInterfacesChecker<'tcx, '_> { // fn from(_: Priv) -> Pub {...} // } // - // lints shouldn't be emmited even if `from` effective visibility + // lints shouldn't be emitted even if `from` effective visibility // is larger than `Priv` nominal visibility and if `Priv` can leak // in some scenarios due to type inference. let impl_ev = EffectiveVisibility::of_impl::<false>( diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs index f745bc390ca..add40b83d21 100644 --- a/compiler/rustc_session/src/config.rs +++ b/compiler/rustc_session/src/config.rs @@ -3178,9 +3178,8 @@ pub(crate) mod dep_tracking { use rustc_target::spec::{ RelroLevel, SanitizerSet, SplitDebuginfo, StackProtector, TargetTriple, TlsModel, }; - use std::collections::hash_map::DefaultHasher; use std::collections::BTreeMap; - use std::hash::Hash; + use std::hash::{DefaultHasher, Hash}; use std::num::NonZeroUsize; use std::path::PathBuf; diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs index ed00851b468..b824eb51ef7 100644 --- a/compiler/rustc_session/src/options.rs +++ b/compiler/rustc_session/src/options.rs @@ -19,8 +19,7 @@ use rustc_span::SourceFileHashAlgorithm; use std::collections::BTreeMap; -use std::collections::hash_map::DefaultHasher; -use std::hash::Hasher; +use std::hash::{DefaultHasher, Hasher}; use std::num::{IntErrorKind, NonZeroUsize}; use std::path::PathBuf; use std::str; @@ -430,6 +429,7 @@ mod desc { pub const parse_remap_path_scope: &str = "comma separated list of scopes: `macro`, `diagnostics`, `unsplit-debuginfo`, `split-debuginfo`, `split-debuginfo-path`, `object`, `all`"; pub const parse_inlining_threshold: &str = "either a boolean (`yes`, `no`, `on`, `off`, etc), or a non-negative number"; + pub const parse_llvm_module_flag: &str = "<key>:<type>:<value>:<behavior>. Type must currently be `u32`. Behavior should be one of (`error`, `warning`, `require`, `override`, `append`, `appendunique`, `max`, `min`)"; } mod parse { @@ -1332,6 +1332,33 @@ mod parse { } true } + + pub(crate) fn parse_llvm_module_flag( + slot: &mut Vec<(String, u32, String)>, + v: Option<&str>, + ) -> bool { + let elements = v.unwrap_or_default().split(':').collect::<Vec<_>>(); + let [key, md_type, value, behavior] = elements.as_slice() else { + return false; + }; + if *md_type != "u32" { + // Currently we only support u32 metadata flags, but require the + // type for forward-compatibility. + return false; + } + let Ok(value) = value.parse::<u32>() else { + return false; + }; + let behavior = behavior.to_lowercase(); + let all_behaviors = + ["error", "warning", "require", "override", "append", "appendunique", "max", "min"]; + if !all_behaviors.contains(&behavior.as_str()) { + return false; + } + + slot.push((key.to_string(), value, behavior)); + true + } } options! { @@ -1622,8 +1649,6 @@ options! { `=skip-entry` `=skip-exit` Multiple options can be combined with commas."), - keep_hygiene_data: bool = (false, parse_bool, [UNTRACKED], - "keep hygiene data after analysis (default: no)"), layout_seed: Option<u64> = (None, parse_opt_number, [TRACKED], "seed layout randomization"), link_directives: bool = (true, parse_bool, [TRACKED], @@ -1632,6 +1657,8 @@ options! { "link native libraries in the linker invocation (default: yes)"), link_only: bool = (false, parse_bool, [TRACKED], "link the `.rlink` file generated by `-Z no-link` (default: no)"), + llvm_module_flag: Vec<(String, u32, String)> = (Vec::new(), parse_llvm_module_flag, [TRACKED], + "a list of module flags to pass to LLVM (space separated)"), llvm_plugins: Vec<String> = (Vec::new(), parse_list, [TRACKED], "a list LLVM plugins to enable (space separated)"), llvm_time_trace: bool = (false, parse_bool, [UNTRACKED], @@ -1711,8 +1738,6 @@ options! { "panic strategy for panics in drops"), parse_only: bool = (false, parse_bool, [UNTRACKED], "parse only; do not compile, assemble, or link (default: no)"), - perf_stats: bool = (false, parse_bool, [UNTRACKED], - "print some performance-related statistics (default: no)"), plt: Option<bool> = (None, parse_opt_bool, [TRACKED], "whether to use the PLT when calling into shared libraries; only has effect for PIC code on systems with ELF binaries diff --git a/compiler/rustc_session/src/session.rs b/compiler/rustc_session/src/session.rs index 80a549b30f7..e9655a5587d 100644 --- a/compiler/rustc_session/src/session.rs +++ b/compiler/rustc_session/src/session.rs @@ -15,10 +15,8 @@ pub use rustc_ast::Attribute; use rustc_data_structures::flock; use rustc_data_structures::fx::{FxHashMap, FxIndexSet}; use rustc_data_structures::jobserver::{self, Client}; -use rustc_data_structures::profiling::{duration_to_secs_str, SelfProfiler, SelfProfilerRef}; -use rustc_data_structures::sync::{ - AtomicU64, AtomicUsize, Lock, Lrc, OneThread, Ordering, Ordering::SeqCst, -}; +use rustc_data_structures::profiling::{SelfProfiler, SelfProfilerRef}; +use rustc_data_structures::sync::{AtomicU64, Lock, Lrc, OneThread, Ordering::SeqCst}; use rustc_errors::annotate_snippet_emitter_writer::AnnotateSnippetEmitterWriter; use rustc_errors::emitter::{DynEmitter, EmitterWriter, HumanReadableErrorType}; use rustc_errors::json::JsonEmitter; @@ -46,7 +44,6 @@ use std::ops::{Div, Mul}; use std::path::{Path, PathBuf}; use std::str::FromStr; use std::sync::{atomic::AtomicBool, Arc}; -use std::time::Duration; pub struct OptimizationFuel { /// If `-zfuel=crate=n` is specified, initially set to `n`, otherwise `0`. @@ -157,9 +154,6 @@ pub struct Session { /// Used by `-Z self-profile`. pub prof: SelfProfilerRef, - /// Some measurements that are being gathered during compilation. - pub perf_stats: PerfStats, - /// Data about code being compiled, gathered during compilation. pub code_stats: CodeStats, @@ -215,17 +209,6 @@ pub struct Session { pub expanded_args: Vec<String>, } -pub struct PerfStats { - /// The accumulated time spent on computing symbol hashes. - pub symbol_hash_time: Lock<Duration>, - /// Total number of values canonicalized queries constructed. - pub queries_canonicalized: AtomicUsize, - /// Number of times this query is invoked. - pub normalize_generic_arg_after_erasing_regions: AtomicUsize, - /// Number of times this query is invoked. - pub normalize_projection_ty: AtomicUsize, -} - #[derive(PartialEq, Eq, PartialOrd, Ord)] pub enum MetadataKind { None, @@ -883,25 +866,6 @@ impl Session { self.opts.incremental.as_ref().map(|_| self.incr_comp_session_dir()) } - pub fn print_perf_stats(&self) { - eprintln!( - "Total time spent computing symbol hashes: {}", - duration_to_secs_str(*self.perf_stats.symbol_hash_time.lock()) - ); - eprintln!( - "Total queries canonicalized: {}", - self.perf_stats.queries_canonicalized.load(Ordering::Relaxed) - ); - eprintln!( - "normalize_generic_arg_after_erasing_regions: {}", - self.perf_stats.normalize_generic_arg_after_erasing_regions.load(Ordering::Relaxed) - ); - eprintln!( - "normalize_projection_ty: {}", - self.perf_stats.normalize_projection_ty.load(Ordering::Relaxed) - ); - } - /// We want to know if we're allowed to do an optimization for crate foo from -z fuel=foo=n. /// This expends fuel if applicable, and records fuel if applicable. pub fn consider_optimizing( @@ -1515,12 +1479,6 @@ pub fn build_session( io, incr_comp_session: OneThread::new(RefCell::new(IncrCompSession::NotInitialized)), prof, - perf_stats: PerfStats { - symbol_hash_time: Lock::new(Duration::from_secs(0)), - queries_canonicalized: AtomicUsize::new(0), - normalize_generic_arg_after_erasing_regions: AtomicUsize::new(0), - normalize_projection_ty: AtomicUsize::new(0), - }, code_stats: Default::default(), optimization_fuel, print_fuel, diff --git a/compiler/rustc_session/src/version.rs b/compiler/rustc_session/src/version.rs index 1ad8620bfba..c0c088bcef7 100644 --- a/compiler/rustc_session/src/version.rs +++ b/compiler/rustc_session/src/version.rs @@ -9,7 +9,7 @@ pub struct RustcVersion { } impl RustcVersion { - pub const CURRENT: Self = current_rustc_version!(env!("CFG_RELEASE")); + pub const CURRENT: Self = current_rustc_version!(); } impl Display for RustcVersion { diff --git a/compiler/rustc_smir/src/rustc_internal/mod.rs b/compiler/rustc_smir/src/rustc_internal/mod.rs index 4d2a518226d..f0b368bec39 100644 --- a/compiler/rustc_smir/src/rustc_internal/mod.rs +++ b/compiler/rustc_smir/src/rustc_internal/mod.rs @@ -104,6 +104,10 @@ impl<'tcx> Tables<'tcx> { stable_mir::ty::RegionDef(self.create_def_id(did)) } + pub fn coroutine_witness_def(&mut self, did: DefId) -> stable_mir::ty::CoroutineWitnessDef { + stable_mir::ty::CoroutineWitnessDef(self.create_def_id(did)) + } + pub fn prov(&mut self, aid: AllocId) -> stable_mir::ty::Prov { stable_mir::ty::Prov(self.create_alloc_id(aid)) } diff --git a/compiler/rustc_smir/src/rustc_smir/mod.rs b/compiler/rustc_smir/src/rustc_smir/mod.rs index 27596c08f1c..8845320ca8b 100644 --- a/compiler/rustc_smir/src/rustc_smir/mod.rs +++ b/compiler/rustc_smir/src/rustc_smir/mod.rs @@ -9,7 +9,7 @@ use crate::rustc_internal::{IndexMap, RustcInternal}; use crate::rustc_smir::hir::def::DefKind; -use crate::rustc_smir::stable_mir::ty::{BoundRegion, EarlyBoundRegion, Region}; +use crate::rustc_smir::stable_mir::ty::{BoundRegion, EarlyParamRegion, Region}; use rustc_hir as hir; use rustc_middle::mir; use rustc_middle::mir::interpret::{alloc_range, AllocId}; @@ -682,10 +682,44 @@ impl<'tcx> Stable<'tcx> for mir::ConstOperand<'tcx> { impl<'tcx> Stable<'tcx> for mir::Place<'tcx> { type T = stable_mir::mir::Place; - fn stable(&self, _: &mut Tables<'tcx>) -> Self::T { + fn stable(&self, tables: &mut Tables<'tcx>) -> Self::T { stable_mir::mir::Place { local: self.local.as_usize(), - projection: format!("{:?}", self.projection), + projection: self.projection.iter().map(|e| e.stable(tables)).collect(), + } + } +} + +impl<'tcx> Stable<'tcx> for mir::PlaceElem<'tcx> { + type T = stable_mir::mir::ProjectionElem; + fn stable(&self, tables: &mut Tables<'tcx>) -> Self::T { + use mir::ProjectionElem::*; + match self { + Deref => stable_mir::mir::ProjectionElem::Deref, + Field(idx, ty) => { + stable_mir::mir::ProjectionElem::Field(idx.stable(tables), ty.stable(tables)) + } + Index(local) => stable_mir::mir::ProjectionElem::Index(local.stable(tables)), + ConstantIndex { offset, min_length, from_end } => { + stable_mir::mir::ProjectionElem::ConstantIndex { + offset: *offset, + min_length: *min_length, + from_end: *from_end, + } + } + Subslice { from, to, from_end } => stable_mir::mir::ProjectionElem::Subslice { + from: *from, + to: *to, + from_end: *from_end, + }, + // MIR includes an `Option<Symbol>` argument for `Downcast` that is the name of the + // variant, used for printing MIR. However this information should also be accessible + // via a lookup using the `VariantIdx`. The `Option<Symbol>` argument is therefore + // dropped when converting to Stable MIR. A brief justification for this decision can be + // found at https://github.com/rust-lang/rust/pull/117517#issuecomment-1811683486 + Downcast(_, idx) => stable_mir::mir::ProjectionElem::Downcast(idx.stable(tables)), + OpaqueCast(ty) => stable_mir::mir::ProjectionElem::OpaqueCast(ty.stable(tables)), + Subtype(ty) => stable_mir::mir::ProjectionElem::Subtype(ty.stable(tables)), } } } @@ -693,8 +727,8 @@ impl<'tcx> Stable<'tcx> for mir::Place<'tcx> { impl<'tcx> Stable<'tcx> for mir::UserTypeProjection { type T = stable_mir::mir::UserTypeProjection; - fn stable(&self, _: &mut Tables<'tcx>) -> Self::T { - UserTypeProjection { base: self.base.as_usize(), projection: format!("{:?}", self.projs) } + fn stable(&self, _tables: &mut Tables<'tcx>) -> Self::T { + UserTypeProjection { base: self.base.as_usize(), projection: opaque(&self.projs) } } } @@ -1292,7 +1326,11 @@ impl<'tcx> Stable<'tcx> for ty::TyKind<'tcx> { ty::Bound(debruijn_idx, bound_ty) => { TyKind::Bound(debruijn_idx.as_usize(), bound_ty.stable(tables)) } - ty::Placeholder(..) | ty::CoroutineWitness(..) | ty::Infer(_) | ty::Error(_) => { + ty::CoroutineWitness(def_id, args) => TyKind::RigidTy(RigidTy::CoroutineWitness( + tables.coroutine_witness_def(*def_id), + args.stable(tables), + )), + ty::Placeholder(..) | ty::Infer(_) | ty::Error(_) => { unreachable!(); } } @@ -1691,12 +1729,12 @@ impl<'tcx> Stable<'tcx> for ty::RegionKind<'tcx> { fn stable(&self, tables: &mut Tables<'tcx>) -> Self::T { use stable_mir::ty::RegionKind; match self { - ty::ReEarlyBound(early_reg) => RegionKind::ReEarlyBound(EarlyBoundRegion { + ty::ReEarlyParam(early_reg) => RegionKind::ReEarlyParam(EarlyParamRegion { def_id: tables.region_def(early_reg.def_id), index: early_reg.index, name: early_reg.name.to_string(), }), - ty::ReLateBound(db_index, bound_reg) => RegionKind::ReLateBound( + ty::ReBound(db_index, bound_reg) => RegionKind::ReBound( db_index.as_u32(), BoundRegion { var: bound_reg.var.as_u32(), kind: bound_reg.kind.stable(tables) }, ), diff --git a/compiler/rustc_span/src/hygiene.rs b/compiler/rustc_span/src/hygiene.rs index 36731d0fe74..988ff57254c 100644 --- a/compiler/rustc_span/src/hygiene.rs +++ b/compiler/rustc_span/src/hygiene.rs @@ -569,10 +569,6 @@ impl HygieneData { } } -pub fn clear_syntax_context_map() { - HygieneData::with(|data| data.syntax_context_map = FxHashMap::default()); -} - pub fn walk_chain(span: Span, to: SyntaxContext) -> Span { HygieneData::with(|data| data.walk_chain(span, to)) } diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index f287862cc23..302be85a429 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -124,6 +124,7 @@ symbols! { // There is currently no checking that all symbols are used; that would be // nice to have. Symbols { + Abi, AcqRel, Acquire, AddToDiagnostic, @@ -166,6 +167,7 @@ symbols! { CString, Capture, Center, + Cleanup, Clone, Command, ConstParamTy, @@ -215,6 +217,7 @@ symbols! { HashSet, Hasher, Implied, + InCleanup, IndexOutput, Input, Instant, @@ -258,6 +261,7 @@ symbols! { NonZeroU8, NonZeroUsize, None, + Normal, Ok, Option, Ord, @@ -1023,6 +1027,36 @@ symbols! { minnumf32, minnumf64, mips_target_feature, + mir_basic_block, + mir_call, + mir_cast_transmute, + mir_checked, + mir_copy_for_deref, + mir_debuginfo, + mir_deinit, + mir_discriminant, + mir_drop, + mir_field, + mir_goto, + mir_len, + mir_make_place, + mir_move, + mir_offset, + mir_retag, + mir_return, + mir_set_discriminant, + mir_static, + mir_static_mut, + mir_storage_dead, + mir_storage_live, + mir_unreachable, + mir_unwind_cleanup, + mir_unwind_continue, + mir_unwind_resume, + mir_unwind_terminate, + mir_unwind_terminate_reason, + mir_unwind_unreachable, + mir_variant, miri, misc, mmx_reg, diff --git a/compiler/rustc_symbol_mangling/src/legacy.rs b/compiler/rustc_symbol_mangling/src/legacy.rs index 53925eeaaa0..0178ff53b24 100644 --- a/compiler/rustc_symbol_mangling/src/legacy.rs +++ b/compiler/rustc_symbol_mangling/src/legacy.rs @@ -4,7 +4,6 @@ use rustc_hir::definitions::{DefPathData, DisambiguatedDefPathData}; use rustc_middle::ty::print::{PrettyPrinter, Print, PrintError, Printer}; use rustc_middle::ty::{self, Instance, Ty, TyCtxt, TypeVisitableExt}; use rustc_middle::ty::{GenericArg, GenericArgKind}; -use rustc_middle::util::common::record_time; use std::fmt::{self, Write}; use std::mem::{self, discriminant}; @@ -101,40 +100,38 @@ fn get_symbol_hash<'tcx>( tcx.with_stable_hashing_context(|mut hcx| { let mut hasher = StableHasher::new(); - record_time(&tcx.sess.perf_stats.symbol_hash_time, || { - // the main symbol name is not necessarily unique; hash in the - // compiler's internal def-path, guaranteeing each symbol has a - // truly unique path - tcx.def_path_hash(def_id).hash_stable(&mut hcx, &mut hasher); - - // Include the main item-type. Note that, in this case, the - // assertions about `has_param` may not hold, but this item-type - // ought to be the same for every reference anyway. - assert!(!item_type.has_erasable_regions()); - hcx.while_hashing_spans(false, |hcx| { - item_type.hash_stable(hcx, &mut hasher); - - // If this is a function, we hash the signature as well. - // This is not *strictly* needed, but it may help in some - // situations, see the `run-make/a-b-a-linker-guard` test. - if let ty::FnDef(..) = item_type.kind() { - item_type.fn_sig(tcx).hash_stable(hcx, &mut hasher); - } + // the main symbol name is not necessarily unique; hash in the + // compiler's internal def-path, guaranteeing each symbol has a + // truly unique path + tcx.def_path_hash(def_id).hash_stable(&mut hcx, &mut hasher); + + // Include the main item-type. Note that, in this case, the + // assertions about `has_param` may not hold, but this item-type + // ought to be the same for every reference anyway. + assert!(!item_type.has_erasable_regions()); + hcx.while_hashing_spans(false, |hcx| { + item_type.hash_stable(hcx, &mut hasher); + + // If this is a function, we hash the signature as well. + // This is not *strictly* needed, but it may help in some + // situations, see the `run-make/a-b-a-linker-guard` test. + if let ty::FnDef(..) = item_type.kind() { + item_type.fn_sig(tcx).hash_stable(hcx, &mut hasher); + } - // also include any type parameters (for generic items) - args.hash_stable(hcx, &mut hasher); + // also include any type parameters (for generic items) + args.hash_stable(hcx, &mut hasher); - if let Some(instantiating_crate) = instantiating_crate { - tcx.def_path_hash(instantiating_crate.as_def_id()) - .stable_crate_id() - .hash_stable(hcx, &mut hasher); - } + if let Some(instantiating_crate) = instantiating_crate { + tcx.def_path_hash(instantiating_crate.as_def_id()) + .stable_crate_id() + .hash_stable(hcx, &mut hasher); + } - // We want to avoid accidental collision between different types of instances. - // Especially, `VTableShim`s and `ReifyShim`s may overlap with their original - // instances without this. - discriminant(&instance.def).hash_stable(hcx, &mut hasher); - }); + // We want to avoid accidental collision between different types of instances. + // Especially, `VTableShim`s and `ReifyShim`s may overlap with their original + // instances without this. + discriminant(&instance.def).hash_stable(hcx, &mut hasher); }); // 64 bits should be enough to avoid collisions. 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 5ce188488ce..1501e7d0cf7 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 @@ -270,7 +270,7 @@ fn encode_region<'tcx>( // u6region[I[<region-disambiguator>][<region-index>]E] as vendor extended type let mut s = String::new(); match region.kind() { - RegionKind::ReLateBound(debruijn, r) => { + RegionKind::ReBound(debruijn, r) => { s.push_str("u6regionI"); // Debruijn index, which identifies the binder, as region disambiguator let num = debruijn.index() as u64; @@ -282,11 +282,12 @@ fn encode_region<'tcx>( s.push('E'); compress(dict, DictKey::Region(region), &mut s); } - RegionKind::ReEarlyBound(..) | RegionKind::ReErased => { + // FIXME(@lcnr): Why is `ReEarlyParam` reachable here. + RegionKind::ReEarlyParam(..) | RegionKind::ReErased => { s.push_str("u6region"); compress(dict, DictKey::Region(region), &mut s); } - RegionKind::ReFree(..) + RegionKind::ReLateParam(..) | RegionKind::ReStatic | RegionKind::ReError(_) | RegionKind::ReVar(..) diff --git a/compiler/rustc_symbol_mangling/src/v0.rs b/compiler/rustc_symbol_mangling/src/v0.rs index ad3d291dfa0..01cbee3a715 100644 --- a/compiler/rustc_symbol_mangling/src/v0.rs +++ b/compiler/rustc_symbol_mangling/src/v0.rs @@ -319,9 +319,9 @@ impl<'tcx> Printer<'tcx> for SymbolMangler<'tcx> { // shorter mangling of `L_`. ty::ReErased => 0, - // Late-bound lifetimes use indices starting at 1, + // Bound lifetimes use indices starting at 1, // see `BinderLevel` for more details. - ty::ReLateBound(debruijn, ty::BoundRegion { var, kind: ty::BrAnon }) => { + ty::ReBound(debruijn, ty::BoundRegion { var, kind: ty::BrAnon }) => { let binder = &self.binders[self.binders.len() - 1 - debruijn.index()]; let depth = binder.lifetime_depths.start + var.as_u32(); diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index f04799482c8..d8dd4ae2286 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -3503,7 +3503,7 @@ impl TargetTriple { /// If this target is a path, a hash of the path is appended to the triple returned /// by `triple()`. pub fn debug_triple(&self) -> String { - use std::collections::hash_map::DefaultHasher; + use std::hash::DefaultHasher; match self { TargetTriple::TargetTriple(triple) => triple.to_owned(), diff --git a/compiler/rustc_trait_selection/src/lib.rs b/compiler/rustc_trait_selection/src/lib.rs index 5ba29f87855..6fab9441bdc 100644 --- a/compiler/rustc_trait_selection/src/lib.rs +++ b/compiler/rustc_trait_selection/src/lib.rs @@ -21,7 +21,6 @@ #![feature(let_chains)] #![feature(if_let_guard)] #![feature(never_type)] -#![feature(result_option_inspect)] #![feature(type_alias_impl_trait)] #![feature(min_specialization)] #![recursion_limit = "512"] // For rustdoc diff --git a/compiler/rustc_trait_selection/src/solve/assembly/structural_traits.rs b/compiler/rustc_trait_selection/src/solve/assembly/structural_traits.rs index 839968b25a1..6eefccbde04 100644 --- a/compiler/rustc_trait_selection/src/solve/assembly/structural_traits.rs +++ b/compiler/rustc_trait_selection/src/solve/assembly/structural_traits.rs @@ -91,13 +91,13 @@ pub(in crate::solve) fn replace_erased_lifetimes_with_bound_vars<'tcx>( tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, ) -> ty::Binder<'tcx, Ty<'tcx>> { - debug_assert!(!ty.has_late_bound_regions()); + debug_assert!(!ty.has_bound_regions()); let mut counter = 0; let ty = tcx.fold_regions(ty, |r, current_depth| match r.kind() { ty::ReErased => { let br = ty::BoundRegion { var: ty::BoundVar::from_u32(counter), kind: ty::BrAnon }; counter += 1; - ty::Region::new_late_bound(tcx, current_depth, br) + ty::Region::new_bound(tcx, current_depth, br) } // All free regions should be erased here. r => bug!("unexpected region: {r:?}"), diff --git a/compiler/rustc_trait_selection/src/solve/canonicalize.rs b/compiler/rustc_trait_selection/src/solve/canonicalize.rs index 377ae1b4e85..004dc45263c 100644 --- a/compiler/rustc_trait_selection/src/solve/canonicalize.rs +++ b/compiler/rustc_trait_selection/src/solve/canonicalize.rs @@ -222,7 +222,7 @@ impl<'tcx> TypeFolder<TyCtxt<'tcx>> for Canonicalizer<'_, 'tcx> { } let kind = match *r { - ty::ReLateBound(..) => return r, + ty::ReBound(..) => return r, // We may encounter `ReStatic` in item signatures or the hidden type // of an opaque. `ReErased` should only be encountered in the hidden @@ -237,7 +237,7 @@ impl<'tcx> TypeFolder<TyCtxt<'tcx>> for Canonicalizer<'_, 'tcx> { CanonicalizeMode::Response { .. } => return r, }, - ty::ReFree(_) | ty::ReEarlyBound(_) => match self.canonicalize_mode { + ty::ReLateParam(_) | ty::ReEarlyParam(_) => match self.canonicalize_mode { CanonicalizeMode::Input => CanonicalVarKind::Region(ty::UniverseIndex::ROOT), CanonicalizeMode::Response { .. } => bug!("unexpected region in response: {r:?}"), }, @@ -278,7 +278,7 @@ impl<'tcx> TypeFolder<TyCtxt<'tcx>> for Canonicalizer<'_, 'tcx> { var }); let br = ty::BoundRegion { var, kind: BrAnon }; - ty::Region::new_late_bound(self.interner(), self.binder_index, br) + ty::Region::new_bound(self.interner(), self.binder_index, br) } fn fold_ty(&mut self, t: Ty<'tcx>) -> Ty<'tcx> { diff --git a/compiler/rustc_trait_selection/src/solve/eval_ctxt/canonical.rs b/compiler/rustc_trait_selection/src/solve/eval_ctxt/canonical.rs index b3f9218d761..ae7f6ca2f7a 100644 --- a/compiler/rustc_trait_selection/src/solve/eval_ctxt/canonical.rs +++ b/compiler/rustc_trait_selection/src/solve/eval_ctxt/canonical.rs @@ -262,7 +262,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { } } GenericArgKind::Lifetime(r) => { - if let ty::ReLateBound(debruijn, br) = *r { + if let ty::ReBound(debruijn, br) = *r { assert_eq!(debruijn, ty::INNERMOST); opt_values[br.var] = Some(*original_value); } diff --git a/compiler/rustc_trait_selection/src/solve/eval_ctxt/mod.rs b/compiler/rustc_trait_selection/src/solve/eval_ctxt/mod.rs index 70235b710e2..583eb9f96a9 100644 --- a/compiler/rustc_trait_selection/src/solve/eval_ctxt/mod.rs +++ b/compiler/rustc_trait_selection/src/solve/eval_ctxt/mod.rs @@ -4,7 +4,7 @@ use rustc_infer::infer::at::ToTrace; use rustc_infer::infer::canonical::CanonicalVarValues; use rustc_infer::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind}; use rustc_infer::infer::{ - DefineOpaqueTypes, InferCtxt, InferOk, LateBoundRegionConversionTime, TyCtxtInferExt, + BoundRegionConversionTime, DefineOpaqueTypes, InferCtxt, InferOk, TyCtxtInferExt, }; use rustc_infer::traits::query::NoSolution; use rustc_infer::traits::ObligationCause; @@ -780,7 +780,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> { ) -> T { self.infcx.instantiate_binder_with_fresh_vars( DUMMY_SP, - LateBoundRegionConversionTime::HigherRankedType, + BoundRegionConversionTime::HigherRankedType, value, ) } diff --git a/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs b/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs index 69bfdd4688c..951080ac61a 100644 --- a/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs +++ b/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs @@ -58,7 +58,7 @@ impl<'a, 'tcx> InspectCandidate<'a, 'tcx> { visitor: &mut V, ) -> ControlFlow<V::BreakTy> { // HACK: An arbitrary cutoff to avoid dealing with overflow and cycles. - if self.goal.depth >= 10 { + if self.goal.depth <= 10 { let infcx = self.goal.infcx; infcx.probe(|_| { let mut instantiated_goals = vec![]; diff --git a/compiler/rustc_trait_selection/src/solve/project_goals/mod.rs b/compiler/rustc_trait_selection/src/solve/project_goals/mod.rs index 240141065dc..7fb550aa3e0 100644 --- a/compiler/rustc_trait_selection/src/solve/project_goals/mod.rs +++ b/compiler/rustc_trait_selection/src/solve/project_goals/mod.rs @@ -160,7 +160,7 @@ impl<'tcx> assembly::GoalKind<'tcx> for ProjectionPredicate<'tcx> { let goal_trait_ref = goal.predicate.projection_ty.trait_ref(tcx); let impl_trait_ref = tcx.impl_trait_ref(impl_def_id).unwrap(); let drcx = DeepRejectCtxt { treat_obligation_params: TreatParams::ForLookup }; - if !drcx.args_refs_may_unify(goal_trait_ref.args, impl_trait_ref.skip_binder().args) { + if !drcx.args_may_unify(goal_trait_ref.args, impl_trait_ref.skip_binder().args) { return Err(NoSolution); } diff --git a/compiler/rustc_trait_selection/src/solve/trait_goals.rs b/compiler/rustc_trait_selection/src/solve/trait_goals.rs index a0e2ad6e202..84baec4ff4c 100644 --- a/compiler/rustc_trait_selection/src/solve/trait_goals.rs +++ b/compiler/rustc_trait_selection/src/solve/trait_goals.rs @@ -43,9 +43,7 @@ impl<'tcx> assembly::GoalKind<'tcx> for TraitPredicate<'tcx> { let impl_trait_ref = tcx.impl_trait_ref(impl_def_id).unwrap(); let drcx = DeepRejectCtxt { treat_obligation_params: TreatParams::ForLookup }; - if !drcx - .args_refs_may_unify(goal.predicate.trait_ref.args, impl_trait_ref.skip_binder().args) - { + if !drcx.args_may_unify(goal.predicate.trait_ref.args, impl_trait_ref.skip_binder().args) { return Err(NoSolution); } diff --git a/compiler/rustc_trait_selection/src/traits/auto_trait.rs b/compiler/rustc_trait_selection/src/traits/auto_trait.rs index 8096d7969f3..dbf6749b523 100644 --- a/compiler/rustc_trait_selection/src/traits/auto_trait.rs +++ b/compiler/rustc_trait_selection/src/traits/auto_trait.rs @@ -410,11 +410,11 @@ impl<'tcx> AutoTraitFinder<'tcx> { iter::zip(new_args.regions(), old_args.regions()) { match (*new_region, *old_region) { - // If both predicates have an `ReLateBound` (a HRTB) in the + // If both predicates have an `ReBound` (a HRTB) in the // same spot, we do nothing. - (ty::ReLateBound(_, _), ty::ReLateBound(_, _)) => {} + (ty::ReBound(_, _), ty::ReBound(_, _)) => {} - (ty::ReLateBound(_, _), _) | (_, ty::ReVar(_)) => { + (ty::ReBound(_, _), _) | (_, ty::ReVar(_)) => { // One of these is true: // The new predicate has a HRTB in a spot where the old // predicate does not (if they both had a HRTB, the previous @@ -440,7 +440,7 @@ impl<'tcx> AutoTraitFinder<'tcx> { // `user_computed_preds`. return false; } - (_, ty::ReLateBound(_, _)) | (ty::ReVar(_), _) => { + (_, ty::ReBound(_, _)) | (ty::ReVar(_), _) => { // This is the opposite situation as the previous arm. // One of these is true: // diff --git a/compiler/rustc_trait_selection/src/traits/coherence.rs b/compiler/rustc_trait_selection/src/traits/coherence.rs index dcf5fd86929..7ca33ae41c0 100644 --- a/compiler/rustc_trait_selection/src/traits/coherence.rs +++ b/compiler/rustc_trait_selection/src/traits/coherence.rs @@ -20,6 +20,7 @@ use crate::traits::{ }; use rustc_data_structures::fx::FxIndexSet; use rustc_errors::Diagnostic; +use rustc_hir::def::DefKind; use rustc_hir::def_id::{DefId, LOCAL_CRATE}; use rustc_infer::infer::{DefineOpaqueTypes, InferCtxt, TyCtxtInferExt}; use rustc_infer::traits::{util, TraitEngine}; @@ -100,7 +101,7 @@ pub fn overlapping_impls( let impl1_ref = tcx.impl_trait_ref(impl1_def_id); let impl2_ref = tcx.impl_trait_ref(impl2_def_id); let may_overlap = match (impl1_ref, impl2_ref) { - (Some(a), Some(b)) => drcx.args_refs_may_unify(a.skip_binder().args, b.skip_binder().args), + (Some(a), Some(b)) => drcx.args_may_unify(a.skip_binder().args, b.skip_binder().args), (None, None) => { let self_ty1 = tcx.type_of(impl1_def_id).skip_binder(); let self_ty2 = tcx.type_of(impl2_def_id).skip_binder(); @@ -1002,7 +1003,12 @@ impl<'a, 'tcx> ProofTreeVisitor<'tcx> for AmbiguityCausesVisitor<'a> { // and then prove the resulting predicate as a nested goal. let trait_ref = match predicate.kind().no_bound_vars() { Some(ty::PredicateKind::Clause(ty::ClauseKind::Trait(tr))) => tr.trait_ref, - Some(ty::PredicateKind::Clause(ty::ClauseKind::Projection(proj))) => { + Some(ty::PredicateKind::Clause(ty::ClauseKind::Projection(proj))) + if matches!( + infcx.tcx.def_kind(proj.projection_ty.def_id), + DefKind::AssocTy | DefKind::AssocConst + ) => + { proj.projection_ty.trait_ref(infcx.tcx) } _ => return ControlFlow::Continue(()), 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 5bc5a12a8fe..b246e476bed 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/ambiguity.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/ambiguity.rs @@ -1,5 +1,5 @@ use rustc_hir::def_id::DefId; -use rustc_infer::infer::{InferCtxt, LateBoundRegionConversionTime}; +use rustc_infer::infer::{BoundRegionConversionTime, InferCtxt}; use rustc_infer::traits::util::elaborate; use rustc_infer::traits::{Obligation, ObligationCause, PolyTraitObligation}; use rustc_middle::ty; @@ -53,7 +53,7 @@ pub fn recompute_applicable_impls<'tcx>( let param_env_predicate = infcx.instantiate_binder_with_fresh_vars( DUMMY_SP, - LateBoundRegionConversionTime::HigherRankedType, + BoundRegionConversionTime::HigherRankedType, poly_trait_predicate, ); let param_env_trait_ref = 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 6b09bc89873..262bed8610c 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs @@ -26,7 +26,7 @@ use rustc_hir::{CoroutineKind, CoroutineSource, Node}; use rustc_hir::{Expr, HirId}; use rustc_infer::infer::error_reporting::TypeErrCtxt; use rustc_infer::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind}; -use rustc_infer::infer::{DefineOpaqueTypes, InferOk, LateBoundRegionConversionTime}; +use rustc_infer::infer::{BoundRegionConversionTime, DefineOpaqueTypes, InferOk}; use rustc_middle::hir::map; use rustc_middle::traits::IsConstable; use rustc_middle::ty::error::TypeError::{self, Sorts}; @@ -740,7 +740,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { } // We `erase_late_bound_regions` here because `make_subregion` does not handle - // `ReLateBound`, and we don't particularly care about the regions. + // `ReBound`, and we don't particularly care about the regions. let real_ty = self.tcx.erase_late_bound_regions(real_trait_pred.self_ty()); if !self.can_eq(obligation.param_env, real_ty, arg_ty) { continue; @@ -908,7 +908,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let self_ty = self.instantiate_binder_with_fresh_vars( DUMMY_SP, - LateBoundRegionConversionTime::FnCall, + BoundRegionConversionTime::FnCall, trait_pred.self_ty(), ); @@ -1237,7 +1237,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let output = self.instantiate_binder_with_fresh_vars( DUMMY_SP, - LateBoundRegionConversionTime::FnCall, + BoundRegionConversionTime::FnCall, output, ); let inputs = inputs @@ -1246,7 +1246,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { .map(|ty| { self.instantiate_binder_with_fresh_vars( DUMMY_SP, - LateBoundRegionConversionTime::FnCall, + BoundRegionConversionTime::FnCall, inputs.rebind(*ty), ) }) @@ -3595,7 +3595,7 @@ impl<'tcx> TypeErrCtxtExt<'tcx> for TypeErrCtxt<'_, 'tcx> { let where_pred = self.instantiate_binder_with_placeholders(where_pred); let failed_pred = self.instantiate_binder_with_fresh_vars( expr.span, - LateBoundRegionConversionTime::FnCall, + BoundRegionConversionTime::FnCall, failed_pred, ); diff --git a/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs b/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs index ba2e3d1ae28..aa284cfc9c5 100644 --- a/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs +++ b/compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs @@ -1377,7 +1377,7 @@ impl<'tcx> InferCtxtPrivExt<'tcx> for TypeErrCtxt<'_, 'tcx> { { let data = self.instantiate_binder_with_fresh_vars( obligation.cause.span, - infer::LateBoundRegionConversionTime::HigherRankedType, + infer::BoundRegionConversionTime::HigherRankedType, bound_predicate.rebind(data), ); let unnormalized_term = match data.term.unpack() { diff --git a/compiler/rustc_trait_selection/src/traits/mod.rs b/compiler/rustc_trait_selection/src/traits/mod.rs index fff5510bbfb..2c004c65929 100644 --- a/compiler/rustc_trait_selection/src/traits/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/mod.rs @@ -484,7 +484,7 @@ fn is_impossible_associated_item( t.super_visit_with(self) } fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<Self::BreakTy> { - if let ty::ReEarlyBound(param) = r.kind() + if let ty::ReEarlyParam(param) = r.kind() && let param_def_id = self.generics.region_param(¶m, self.tcx).def_id && self.tcx.parent(param_def_id) == self.trait_item_def_id { diff --git a/compiler/rustc_trait_selection/src/traits/object_safety.rs b/compiler/rustc_trait_selection/src/traits/object_safety.rs index 17c7f94ee88..3e5dd8c50d4 100644 --- a/compiler/rustc_trait_selection/src/traits/object_safety.rs +++ b/compiler/rustc_trait_selection/src/traits/object_safety.rs @@ -329,7 +329,7 @@ fn super_predicates_have_non_lifetime_binders( tcx.super_predicates_of(trait_def_id) .predicates .iter() - .filter_map(|(pred, span)| pred.has_non_region_late_bound().then_some(*span)) + .filter_map(|(pred, span)| pred.has_non_region_bound_vars().then_some(*span)) .collect() } diff --git a/compiler/rustc_trait_selection/src/traits/project.rs b/compiler/rustc_trait_selection/src/traits/project.rs index 471d10dbdbd..3bc401128b3 100644 --- a/compiler/rustc_trait_selection/src/traits/project.rs +++ b/compiler/rustc_trait_selection/src/traits/project.rs @@ -18,7 +18,7 @@ use rustc_middle::traits::ImplSourceUserDefinedData; use crate::errors::InherentProjectionNormalizationOverflow; use crate::infer::type_variable::{TypeVariableOrigin, TypeVariableOriginKind}; -use crate::infer::{InferCtxt, InferOk, LateBoundRegionConversionTime}; +use crate::infer::{BoundRegionConversionTime, InferCtxt, InferOk}; use crate::traits::error_reporting::TypeErrCtxtExt as _; use crate::traits::query::evaluate_obligation::InferCtxtExt as _; use crate::traits::select::ProjectionMatchesProjection; @@ -894,16 +894,16 @@ impl<'tcx> TypeFolder<TyCtxt<'tcx>> for BoundVarReplacer<'_, 'tcx> { fn fold_region(&mut self, r: ty::Region<'tcx>) -> ty::Region<'tcx> { match *r { - ty::ReLateBound(debruijn, _) - if debruijn.as_usize() + 1 - > self.current_index.as_usize() + self.universe_indices.len() => + ty::ReBound(debruijn, _) + if debruijn.as_usize() + >= self.current_index.as_usize() + self.universe_indices.len() => { bug!( "Bound vars {r:#?} outside of `self.universe_indices`: {:#?}", self.universe_indices ); } - ty::ReLateBound(debruijn, br) if debruijn >= self.current_index => { + ty::ReBound(debruijn, br) if debruijn >= self.current_index => { let universe = self.universe_for(debruijn); let p = ty::PlaceholderRegion { universe, bound: br }; self.mapped_regions.insert(p, br); @@ -1034,7 +1034,7 @@ impl<'tcx> TypeFolder<TyCtxt<'tcx>> for PlaceholderReplacer<'_, 'tcx> { let db = ty::DebruijnIndex::from_usize( self.universe_indices.len() - index + self.current_index.as_usize() - 1, ); - ty::Region::new_late_bound(self.interner(), db, *replace_var) + ty::Region::new_bound(self.interner(), db, *replace_var) } None => r1, } @@ -2319,7 +2319,7 @@ fn confirm_param_env_candidate<'cx, 'tcx>( let cache_entry = infcx.instantiate_binder_with_fresh_vars( cause.span, - LateBoundRegionConversionTime::HigherRankedType, + BoundRegionConversionTime::HigherRankedType, poly_cache_entry, ); diff --git a/compiler/rustc_trait_selection/src/traits/query/normalize.rs b/compiler/rustc_trait_selection/src/traits/query/normalize.rs index 2e31b560b38..dba00ce0154 100644 --- a/compiler/rustc_trait_selection/src/traits/query/normalize.rs +++ b/compiler/rustc_trait_selection/src/traits/query/normalize.rs @@ -150,7 +150,7 @@ impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for MaxEscapingBoundVarVisitor { #[inline] fn visit_region(&mut self, r: ty::Region<'tcx>) -> ControlFlow<Self::BreakTy> { match *r { - ty::ReLateBound(debruijn, _) if debruijn > self.outer_index => { + ty::ReBound(debruijn, _) if debruijn > self.outer_index => { self.escaping = self.escaping.max(debruijn.as_usize() - self.outer_index.as_usize()); } 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 f4b6d3bcfda..c1d44601891 100644 --- a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs +++ b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs @@ -375,7 +375,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { // consider a "quick reject". This avoids creating more types // and so forth that we need to. let impl_trait_ref = self.tcx().impl_trait_ref(impl_def_id).unwrap(); - if !drcx.args_refs_may_unify(obligation_args, impl_trait_ref.skip_binder().args) { + if !drcx.args_may_unify(obligation_args, impl_trait_ref.skip_binder().args) { return; } if self.reject_fn_ptr_impls( diff --git a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs index 4bfa341e333..abb4e71a9af 100644 --- a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs +++ b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs @@ -9,7 +9,7 @@ use rustc_ast::Mutability; use rustc_data_structures::stack::ensure_sufficient_stack; use rustc_hir::lang_items::LangItem; -use rustc_infer::infer::LateBoundRegionConversionTime::HigherRankedType; +use rustc_infer::infer::BoundRegionConversionTime::HigherRankedType; use rustc_infer::infer::{DefineOpaqueTypes, InferOk}; use rustc_middle::traits::{BuiltinImplSource, SelectionOutputTypeParameterMismatch}; use rustc_middle::ty::{ @@ -592,7 +592,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { let kind = ty::BoundRegionKind::BrNamed(param.def_id, param.name); let bound_var = ty::BoundVariableKind::Region(kind); bound_vars.push(bound_var); - ty::Region::new_late_bound( + ty::Region::new_bound( tcx, ty::INNERMOST, ty::BoundRegion { @@ -1277,7 +1277,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { let tcx = self.tcx(); stack.extend(tcx.coroutine_hidden_types(def_id).map(|bty| { let ty = bty.instantiate(tcx, args); - debug_assert!(!ty.has_late_bound_regions()); + debug_assert!(!ty.has_bound_regions()); ty })) } diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs index 08208cc6047..1ed0da59b64 100644 --- a/compiler/rustc_trait_selection/src/traits/select/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs @@ -32,8 +32,8 @@ use rustc_data_structures::stack::ensure_sufficient_stack; use rustc_errors::Diagnostic; use rustc_hir as hir; use rustc_hir::def_id::DefId; +use rustc_infer::infer::BoundRegionConversionTime; use rustc_infer::infer::DefineOpaqueTypes; -use rustc_infer::infer::LateBoundRegionConversionTime; use rustc_infer::traits::TraitObligation; use rustc_middle::dep_graph::dep_kinds; use rustc_middle::dep_graph::DepNodeIndex; @@ -799,7 +799,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { // A global type with no free lifetimes or generic parameters // outlives anything. if pred.0.has_free_regions() - || pred.0.has_late_bound_regions() + || pred.0.has_bound_regions() || pred.0.has_non_region_infer() || pred.0.has_non_region_infer() { @@ -1751,7 +1751,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { let mut nested_obligations = Vec::new(); let infer_predicate = self.infcx.instantiate_binder_with_fresh_vars( obligation.cause.span, - LateBoundRegionConversionTime::HigherRankedType, + BoundRegionConversionTime::HigherRankedType, env_predicate, ); let infer_projection = if potentially_unnormalized_candidates { @@ -1841,7 +1841,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> { // the param_env so that it can be given the lowest priority. See // #50825 for the motivation for this. let is_global = - |cand: &ty::PolyTraitPredicate<'tcx>| cand.is_global() && !cand.has_late_bound_vars(); + |cand: &ty::PolyTraitPredicate<'tcx>| cand.is_global() && !cand.has_bound_vars(); // (*) Prefer `BuiltinCandidate { has_nested: false }`, `PointeeCandidate`, // `DiscriminantKindCandidate`, `ConstDestructCandidate` @@ -3103,7 +3103,7 @@ fn bind_coroutine_hidden_types_above<'tcx>( kind: ty::BrAnon, }; counter += 1; - ty::Region::new_late_bound(tcx, current_depth, br) + ty::Region::new_bound(tcx, current_depth, br) } r => bug!("unexpected region: {r:?}"), }) diff --git a/compiler/rustc_trait_selection/src/traits/wf.rs b/compiler/rustc_trait_selection/src/traits/wf.rs index fe5b625e483..9751cb60ed8 100644 --- a/compiler/rustc_trait_selection/src/traits/wf.rs +++ b/compiler/rustc_trait_selection/src/traits/wf.rs @@ -913,20 +913,15 @@ pub fn object_region_bounds<'tcx>( tcx: TyCtxt<'tcx>, existential_predicates: &'tcx ty::List<ty::PolyExistentialPredicate<'tcx>>, ) -> Vec<ty::Region<'tcx>> { - // Since we don't actually *know* the self type for an object, - // this "open(err)" serves as a kind of dummy standin -- basically - // a placeholder type. - let open_ty = Ty::new_fresh(tcx, 0); - let predicates = existential_predicates.iter().filter_map(|predicate| { if let ty::ExistentialPredicate::Projection(_) = predicate.skip_binder() { None } else { - Some(predicate.with_self_ty(tcx, open_ty)) + Some(predicate.with_self_ty(tcx, tcx.types.trait_object_dummy_self)) } }); - required_region_bounds(tcx, open_ty, predicates) + required_region_bounds(tcx, tcx.types.trait_object_dummy_self, predicates) } /// Given a set of predicates that apply to an object type, returns diff --git a/compiler/rustc_traits/src/normalize_erasing_regions.rs b/compiler/rustc_traits/src/normalize_erasing_regions.rs index 2563e3ed1a3..cb2a36cb998 100644 --- a/compiler/rustc_traits/src/normalize_erasing_regions.rs +++ b/compiler/rustc_traits/src/normalize_erasing_regions.rs @@ -4,18 +4,12 @@ use rustc_middle::traits::query::NoSolution; use rustc_middle::ty::{self, ParamEnvAnd, TyCtxt, TypeFoldable, TypeVisitableExt}; use rustc_trait_selection::traits::query::normalize::QueryNormalizeExt; use rustc_trait_selection::traits::{Normalized, ObligationCause}; -use std::sync::atomic::Ordering; pub(crate) fn provide(p: &mut Providers) { *p = Providers { try_normalize_generic_arg_after_erasing_regions: |tcx, goal| { debug!("try_normalize_generic_arg_after_erasing_regions(goal={:#?}", goal); - tcx.sess - .perf_stats - .normalize_generic_arg_after_erasing_regions - .fetch_add(1, Ordering::Relaxed); - try_normalize_after_erasing_regions(tcx, goal) }, ..*p diff --git a/compiler/rustc_traits/src/normalize_projection_ty.rs b/compiler/rustc_traits/src/normalize_projection_ty.rs index 01bb1ca70eb..b8c71bc96f8 100644 --- a/compiler/rustc_traits/src/normalize_projection_ty.rs +++ b/compiler/rustc_traits/src/normalize_projection_ty.rs @@ -10,7 +10,6 @@ use rustc_trait_selection::traits::query::{ use rustc_trait_selection::traits::{ self, FulfillmentErrorCode, ObligationCause, SelectionContext, }; -use std::sync::atomic::Ordering; pub(crate) fn provide(p: &mut Providers) { *p = Providers { @@ -27,7 +26,6 @@ fn normalize_projection_ty<'tcx>( ) -> Result<&'tcx Canonical<'tcx, QueryResponse<'tcx, NormalizationResult<'tcx>>>, NoSolution> { debug!("normalize_provider(goal={:#?})", goal); - tcx.sess.perf_stats.normalize_projection_ty.fetch_add(1, Ordering::Relaxed); tcx.infer_ctxt().enter_canonical_trait_query( &goal, |ocx, ParamEnvAnd { param_env, value: goal }| { @@ -78,7 +76,6 @@ fn normalize_weak_ty<'tcx>( ) -> Result<&'tcx Canonical<'tcx, QueryResponse<'tcx, NormalizationResult<'tcx>>>, NoSolution> { debug!("normalize_provider(goal={:#?})", goal); - tcx.sess.perf_stats.normalize_projection_ty.fetch_add(1, Ordering::Relaxed); tcx.infer_ctxt().enter_canonical_trait_query( &goal, |ocx, ParamEnvAnd { param_env, value: goal }| { diff --git a/compiler/rustc_ty_utils/src/abi.rs b/compiler/rustc_ty_utils/src/abi.rs index fcf6626bbf0..38f2d616f9a 100644 --- a/compiler/rustc_ty_utils/src/abi.rs +++ b/compiler/rustc_ty_utils/src/abi.rs @@ -82,7 +82,7 @@ fn fn_sig_for_fn_abi<'tcx>( var: ty::BoundVar::from_usize(bound_vars.len() - 1), kind: ty::BoundRegionKind::BrEnv, }; - let env_region = ty::Region::new_late_bound(tcx, ty::INNERMOST, br); + let env_region = ty::Region::new_bound(tcx, ty::INNERMOST, br); let env_ty = tcx.closure_env_ty(def_id, args, env_region).unwrap(); let sig = sig.skip_binder(); @@ -107,8 +107,7 @@ fn fn_sig_for_fn_abi<'tcx>( var: ty::BoundVar::from_usize(bound_vars.len() - 1), kind: ty::BoundRegionKind::BrEnv, }; - let env_ty = - Ty::new_mut_ref(tcx, ty::Region::new_late_bound(tcx, ty::INNERMOST, br), ty); + let env_ty = Ty::new_mut_ref(tcx, ty::Region::new_bound(tcx, ty::INNERMOST, br), ty); let pin_did = tcx.require_lang_item(LangItem::Pin, None); let pin_adt_ref = tcx.adt_def(pin_did); diff --git a/compiler/rustc_ty_utils/src/implied_bounds.rs b/compiler/rustc_ty_utils/src/implied_bounds.rs index 5c34df1ed50..24afd7dc357 100644 --- a/compiler/rustc_ty_utils/src/implied_bounds.rs +++ b/compiler/rustc_ty_utils/src/implied_bounds.rs @@ -53,9 +53,9 @@ fn assumed_wf_types<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> &'tcx [(Ty<' DefKind::AssocTy if let Some(data) = tcx.opt_rpitit_info(def_id.to_def_id()) => { match data { ty::ImplTraitInTraitData::Trait { fn_def_id, .. } => { - // We need to remap all of the late-bound lifetimes in theassumed wf types - // of the fn (which are represented as ReFree) to the early-bound lifetimes - // of the RPITIT (which are represented by ReEarlyBound owned by the opaque). + // We need to remap all of the late-bound lifetimes in the assumed wf types + // of the fn (which are represented as ReLateParam) to the early-bound lifetimes + // of the RPITIT (which are represented by ReEarlyParam owned by the opaque). // Luckily, this is very easy to do because we already have that mapping // stored in the HIR of this RPITIT. // @@ -65,19 +65,19 @@ fn assumed_wf_types<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> &'tcx [(Ty<' let mut mapping = FxHashMap::default(); let generics = tcx.generics_of(def_id); - // For each captured opaque lifetime, if it's late-bound (`ReFree` in this case, - // since it has been liberated), map it back to the early-bound lifetime of + // For each captured opaque lifetime, if it's late-bound (`ReLateParam` in this + // case, since it has been liberated), map it back to the early-bound lifetime of // the GAT. Since RPITITs also have all of the fn's generics, we slice only // the end of the list corresponding to the opaque's generics. for param in &generics.params[tcx.generics_of(fn_def_id).params.len()..] { let orig_lt = tcx.map_rpit_lifetime_to_fn_lifetime(param.def_id.expect_local()); - if matches!(*orig_lt, ty::ReFree(..)) { + if matches!(*orig_lt, ty::ReLateParam(..)) { mapping.insert( orig_lt, - ty::Region::new_early_bound( + ty::Region::new_early_param( tcx, - ty::EarlyBoundRegion { + ty::EarlyParamRegion { def_id: param.def_id, index: param.index, name: param.name, @@ -90,7 +90,7 @@ fn assumed_wf_types<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> &'tcx [(Ty<' let remapped_wf_tys = tcx.fold_regions( tcx.assumed_wf_types(fn_def_id.expect_local()).to_vec(), |region, _| { - // If `region` is a `ReFree` that is captured by the + // If `region` is a `ReLateParam` that is captured by the // opaque, remap it to its corresponding the early- // bound region. if let Some(remapped_region) = mapping.get(®ion) { diff --git a/compiler/rustc_ty_utils/src/layout.rs b/compiler/rustc_ty_utils/src/layout.rs index 283862b5e1c..52f723eba80 100644 --- a/compiler/rustc_ty_utils/src/layout.rs +++ b/compiler/rustc_ty_utils/src/layout.rs @@ -740,11 +740,11 @@ fn coroutine_layout<'tcx>( }; let tag_layout = cx.tcx.mk_layout(LayoutS::scalar(cx, tag)); - let promoted_layouts = ineligible_locals - .iter() - .map(|local| subst_field(info.field_tys[local].ty)) - .map(|ty| Ty::new_maybe_uninit(tcx, ty)) - .map(|ty| Ok(cx.layout_of(ty)?.layout)); + let promoted_layouts = ineligible_locals.iter().map(|local| { + let field_ty = subst_field(info.field_tys[local].ty); + let uninit_ty = Ty::new_maybe_uninit(tcx, field_ty); + Ok(cx.spanned_layout_of(uninit_ty, info.field_tys[local].source_info.span)?.layout) + }); let prefix_layouts = args .as_coroutine() .prefix_tys() diff --git a/compiler/rustc_ty_utils/src/opaque_types.rs b/compiler/rustc_ty_utils/src/opaque_types.rs index 9242a1a751b..7ca2da42042 100644 --- a/compiler/rustc_ty_utils/src/opaque_types.rs +++ b/compiler/rustc_ty_utils/src/opaque_types.rs @@ -159,10 +159,10 @@ impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for OpaqueTypeCollector<'tcx> { // Only check that the parent generics of the TAIT/RPIT are unique. // the args owned by the opaque are going to always be duplicate // lifetime params for RPITs, and empty for TAITs. - match self - .tcx - .uses_unique_generic_params(&alias_ty.args[..parent_count], CheckRegions::Bound) - { + match self.tcx.uses_unique_generic_params( + &alias_ty.args[..parent_count], + CheckRegions::FromFunction, + ) { Ok(()) => { // FIXME: implement higher kinded lifetime bounds on nested opaque types. They are not // supported at all, so this is sound to do, but once we want to support them, you'll diff --git a/compiler/rustc_ty_utils/src/ty.rs b/compiler/rustc_ty_utils/src/ty.rs index abf3e108ed4..2b262cfdebd 100644 --- a/compiler/rustc_ty_utils/src/ty.rs +++ b/compiler/rustc_ty_utils/src/ty.rs @@ -195,7 +195,7 @@ impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for ImplTraitInTraitFinder<'_, 'tcx> { // bounds of the RPITIT. Shift these binders back out when // constructing the top-level projection predicate. let shifted_alias_ty = self.tcx.fold_regions(unshifted_alias_ty, |re, depth| { - if let ty::ReLateBound(index, bv) = re.kind() { + if let ty::ReBound(index, bv) = re.kind() { if depth != ty::INNERMOST { return ty::Region::new_error_with_message( self.tcx, @@ -203,7 +203,7 @@ impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for ImplTraitInTraitFinder<'_, 'tcx> { "we shouldn't walk non-predicate binders with `impl Trait`...", ); } - ty::Region::new_late_bound( + ty::Region::new_bound( self.tcx, index.shifted_out_to_binder(self.depth), bv, diff --git a/compiler/rustc_type_ir/src/flags.rs b/compiler/rustc_type_ir/src/flags.rs index 8472a084505..af741a0a3a0 100644 --- a/compiler/rustc_type_ir/src/flags.rs +++ b/compiler/rustc_type_ir/src/flags.rs @@ -8,7 +8,7 @@ bitflags! { // required. /// Does this have `Param`? const HAS_TY_PARAM = 1 << 0; - /// Does this have `ReEarlyBound`? + /// Does this have `ReEarlyParam`? const HAS_RE_PARAM = 1 << 1; /// Does this have `ConstKind::Param`? const HAS_CT_PARAM = 1 << 2; @@ -85,20 +85,20 @@ bitflags! { const HAS_ERROR = 1 << 14; /// Does this have any region that "appears free" in the type? - /// Basically anything but `ReLateBound` and `ReErased`. + /// Basically anything but `ReBound` and `ReErased`. const HAS_FREE_REGIONS = 1 << 15; - /// Does this have any `ReLateBound` regions? - const HAS_RE_LATE_BOUND = 1 << 16; + /// Does this have any `ReBound` regions? + const HAS_RE_BOUND = 1 << 16; /// Does this have any `Bound` types? - const HAS_TY_LATE_BOUND = 1 << 17; + const HAS_TY_BOUND = 1 << 17; /// Does this have any `ConstKind::Bound` consts? - const HAS_CT_LATE_BOUND = 1 << 18; + const HAS_CT_BOUND = 1 << 18; /// Does this have any bound variables? /// Used to check if a global bound is safe to evaluate. - const HAS_LATE_BOUND = TypeFlags::HAS_RE_LATE_BOUND.bits - | TypeFlags::HAS_TY_LATE_BOUND.bits - | TypeFlags::HAS_CT_LATE_BOUND.bits; + const HAS_BOUND_VARS = TypeFlags::HAS_RE_BOUND.bits + | TypeFlags::HAS_TY_BOUND.bits + | TypeFlags::HAS_CT_BOUND.bits; /// Does this have any `ReErased` regions? const HAS_RE_ERASED = 1 << 19; diff --git a/compiler/rustc_type_ir/src/interner.rs b/compiler/rustc_type_ir/src/interner.rs index 7f75e5b35a2..da504c54fdd 100644 --- a/compiler/rustc_type_ir/src/interner.rs +++ b/compiler/rustc_type_ir/src/interner.rs @@ -47,9 +47,9 @@ pub trait Interner: Sized { // Kinds of regions type Region: Clone + DebugWithInfcx<Self> + Hash + Ord; - type EarlyBoundRegion: Clone + Debug + Hash + Ord; + type EarlyParamRegion: Clone + Debug + Hash + Ord; type BoundRegion: Clone + Debug + Hash + Ord; - type FreeRegion: Clone + Debug + Hash + Ord; + type LateParamRegion: Clone + Debug + Hash + Ord; type InferRegion: Clone + DebugWithInfcx<Self> + Hash + Ord; type PlaceholderRegion: Clone + Debug + Hash + Ord; diff --git a/compiler/rustc_type_ir/src/region_kind.rs b/compiler/rustc_type_ir/src/region_kind.rs index 69ed5badaea..5d3ce49bc8f 100644 --- a/compiler/rustc_type_ir/src/region_kind.rs +++ b/compiler/rustc_type_ir/src/region_kind.rs @@ -22,8 +22,8 @@ use self::RegionKind::*; /// ```text /// static ----------+-----...------+ (greatest) /// | | | -/// early-bound and | | -/// free regions | | +/// param regions | | +/// | | | /// | | | /// | | | /// empty(root) placeholder(U1) | @@ -88,8 +88,8 @@ use self::RegionKind::*; /// To do this, we replace the bound regions with placeholder markers, /// which don't satisfy any relation not explicitly provided. /// -/// There are two kinds of placeholder regions in rustc: `ReFree` and -/// `RePlaceholder`. When checking an item's body, `ReFree` is supposed +/// There are two kinds of placeholder regions in rustc: `ReLateParam` and +/// `RePlaceholder`. When checking an item's body, `ReLateParam` is supposed /// to be used. These also support explicit bounds: both the internally-stored /// *scope*, which the region is assumed to outlive, as well as other /// relations stored in the `FreeRegionMap`. Note that these relations @@ -123,19 +123,35 @@ use self::RegionKind::*; )] #[derive(TyEncodable, TyDecodable)] pub enum RegionKind<I: Interner> { - /// Region bound in a type or fn declaration which will be - /// substituted 'early' -- that is, at the same time when type - /// parameters are substituted. - ReEarlyBound(I::EarlyBoundRegion), + /// A region parameter; for example `'a` in `impl<'a> Trait for &'a ()`. + /// + /// There are some important differences between region and type parameters. + /// Not all region parameters in the source are represented via `ReEarlyParam`: + /// late-bound function parameters are instead lowered to a `ReBound`. Late-bound + /// regions get eagerly replaced with `ReLateParam` which behaves in the same way as + /// `ReEarlyParam`. Region parameters are also sometimes implicit, + /// e.g. in `impl Trait for &()`. + ReEarlyParam(I::EarlyParamRegion), - /// Region bound in a function scope, which will be substituted when the - /// function is called. - ReLateBound(DebruijnIndex, I::BoundRegion), + /// A higher-ranked region. These represent either late-bound function parameters + /// or bound variables from a `for<'a>`-binder. + /// + /// While inside of a function, e.g. during typeck, the late-bound function parameters + /// can be converted to `ReLateParam` by calling `tcx.liberate_late_bound_regions`. + /// + /// Bound regions inside of types **must not** be erased, as they impact trait + /// selection and the `TypeId` of that type. `for<'a> fn(&'a ())` and + /// `fn(&'static ())` are different types and have to be treated as such. + ReBound(DebruijnIndex, I::BoundRegion), - /// When checking a function body, the types of all arguments and so forth - /// that refer to bound region parameters are modified to refer to free - /// region parameters. - ReFree(I::FreeRegion), + /// Late-bound function parameters are represented using a `ReBound`. When + /// inside of a function, we convert these bound variables to placeholder + /// parameters via `tcx.liberate_late_bound_regions`. They are then treated + /// the same way as `ReEarlyParam` while inside of the function. + /// + /// See <https://rustc-dev-guide.rust-lang.org/early-late-bound-summary.html> for + /// more info about early and late bound lifetime parameters. + ReLateParam(I::LateParamRegion), /// Static data that has an "infinite" lifetime. Top in the region lattice. ReStatic, @@ -143,8 +159,11 @@ pub enum RegionKind<I: Interner> { /// A region variable. Should not exist outside of type inference. ReVar(I::InferRegion), - /// A placeholder region -- basically, the higher-ranked version of `ReFree`. + /// A placeholder region -- the higher-ranked version of `ReLateParam`. /// Should not exist outside of type inference. + /// + /// Used when instantiating a `forall` binder via + /// `infcx.instantiate_binder_with_placeholders`. RePlaceholder(I::PlaceholderRegion), /// Erased region, used by trait selection, in MIR and during codegen. @@ -159,9 +178,9 @@ pub enum RegionKind<I: Interner> { #[inline] const fn regionkind_discriminant<I: Interner>(value: &RegionKind<I>) -> usize { match value { - ReEarlyBound(_) => 0, - ReLateBound(_, _) => 1, - ReFree(_) => 2, + ReEarlyParam(_) => 0, + ReBound(_, _) => 1, + ReLateParam(_) => 2, ReStatic => 3, ReVar(_) => 4, RePlaceholder(_) => 5, @@ -173,9 +192,9 @@ const fn regionkind_discriminant<I: Interner>(value: &RegionKind<I>) -> usize { // This is manually implemented because a derive would require `I: Copy` impl<I: Interner> Copy for RegionKind<I> where - I::EarlyBoundRegion: Copy, + I::EarlyParamRegion: Copy, I::BoundRegion: Copy, - I::FreeRegion: Copy, + I::LateParamRegion: Copy, I::InferRegion: Copy, I::PlaceholderRegion: Copy, I::ErrorGuaranteed: Copy, @@ -188,9 +207,9 @@ impl<I: Interner> PartialEq for RegionKind<I> { fn eq(&self, other: &RegionKind<I>) -> bool { regionkind_discriminant(self) == regionkind_discriminant(other) && match (self, other) { - (ReEarlyBound(a_r), ReEarlyBound(b_r)) => a_r == b_r, - (ReLateBound(a_d, a_r), ReLateBound(b_d, b_r)) => a_d == b_d && a_r == b_r, - (ReFree(a_r), ReFree(b_r)) => a_r == b_r, + (ReEarlyParam(a_r), ReEarlyParam(b_r)) => a_r == b_r, + (ReBound(a_d, a_r), ReBound(b_d, b_r)) => a_d == b_d && a_r == b_r, + (ReLateParam(a_r), ReLateParam(b_r)) => a_r == b_r, (ReStatic, ReStatic) => true, (ReVar(a_r), ReVar(b_r)) => a_r == b_r, (RePlaceholder(a_r), RePlaceholder(b_r)) => a_r == b_r, @@ -216,13 +235,13 @@ impl<I: Interner> DebugWithInfcx<I> for RegionKind<I> { f: &mut core::fmt::Formatter<'_>, ) -> core::fmt::Result { match this.data { - ReEarlyBound(data) => write!(f, "ReEarlyBound({data:?})"), + ReEarlyParam(data) => write!(f, "ReEarlyParam({data:?})"), - ReLateBound(binder_id, bound_region) => { - write!(f, "ReLateBound({binder_id:?}, {bound_region:?})") + ReBound(binder_id, bound_region) => { + write!(f, "ReBound({binder_id:?}, {bound_region:?})") } - ReFree(fr) => write!(f, "{fr:?}"), + ReLateParam(fr) => write!(f, "{fr:?}"), ReStatic => f.write_str("ReStatic"), @@ -245,9 +264,9 @@ impl<I: Interner> fmt::Debug for RegionKind<I> { // This is not a derived impl because a derive would require `I: HashStable` impl<CTX: HashStableContext, I: Interner> HashStable<CTX> for RegionKind<I> where - I::EarlyBoundRegion: HashStable<CTX>, + I::EarlyParamRegion: HashStable<CTX>, I::BoundRegion: HashStable<CTX>, - I::FreeRegion: HashStable<CTX>, + I::LateParamRegion: HashStable<CTX>, I::InferRegion: HashStable<CTX>, I::PlaceholderRegion: HashStable<CTX>, { @@ -258,14 +277,14 @@ where ReErased | ReStatic | ReError(_) => { // No variant fields to hash for these ... } - ReLateBound(d, r) => { + ReBound(d, r) => { d.hash_stable(hcx, hasher); r.hash_stable(hcx, hasher); } - ReEarlyBound(r) => { + ReEarlyParam(r) => { r.hash_stable(hcx, hasher); } - ReFree(r) => { + ReLateParam(r) => { r.hash_stable(hcx, hasher); } RePlaceholder(r) => { diff --git a/compiler/stable_mir/src/mir/body.rs b/compiler/stable_mir/src/mir/body.rs index 06933783685..351e7bb69c3 100644 --- a/compiler/stable_mir/src/mir/body.rs +++ b/compiler/stable_mir/src/mir/body.rs @@ -398,22 +398,128 @@ pub enum Operand { pub struct Place { pub local: Local, /// projection out of a place (access a field, deref a pointer, etc) - pub projection: String, + pub projection: Vec<ProjectionElem>, +} + +// In MIR ProjectionElem is parameterized on the second Field argument and the Index argument. This +// is so it can be used for both Places (for which the projection elements are of type +// ProjectionElem<Local, Ty>) and user-provided type annotations (for which the projection elements +// are of type ProjectionElem<(), ()>). In SMIR we don't need this generality, so we just use +// ProjectionElem for Places. +#[derive(Clone, Debug, Eq, PartialEq)] +pub enum ProjectionElem { + /// Dereference projections (e.g. `*_1`) project to the address referenced by the base place. + Deref, + + /// A field projection (e.g., `f` in `_1.f`) project to a field in the base place. The field is + /// referenced by source-order index rather than the name of the field. The fields type is also + /// given. + Field(FieldIdx, Ty), + + /// Index into a slice/array. The value of the index is computed at runtime using the `V` + /// argument. + /// + /// Note that this does not also dereference, and so it does not exactly correspond to slice + /// indexing in Rust. In other words, in the below Rust code: + /// + /// ```rust + /// let x = &[1, 2, 3, 4]; + /// let i = 2; + /// x[i]; + /// ``` + /// + /// The `x[i]` is turned into a `Deref` followed by an `Index`, not just an `Index`. The same + /// thing is true of the `ConstantIndex` and `Subslice` projections below. + Index(Local), + + /// Index into a slice/array given by offsets. + /// + /// These indices are generated by slice patterns. Easiest to explain by example: + /// + /// ```ignore (illustrative) + /// [X, _, .._, _, _] => { offset: 0, min_length: 4, from_end: false }, + /// [_, X, .._, _, _] => { offset: 1, min_length: 4, from_end: false }, + /// [_, _, .._, X, _] => { offset: 2, min_length: 4, from_end: true }, + /// [_, _, .._, _, X] => { offset: 1, min_length: 4, from_end: true }, + /// ``` + ConstantIndex { + /// index or -index (in Python terms), depending on from_end + offset: u64, + /// The thing being indexed must be at least this long. For arrays this + /// is always the exact length. + min_length: u64, + /// Counting backwards from end? This is always false when indexing an + /// array. + from_end: bool, + }, + + /// Projects a slice from the base place. + /// + /// These indices are generated by slice patterns. If `from_end` is true, this represents + /// `slice[from..slice.len() - to]`. Otherwise it represents `array[from..to]`. + Subslice { + from: u64, + to: u64, + /// Whether `to` counts from the start or end of the array/slice. + from_end: bool, + }, + + /// "Downcast" to a variant of an enum or a coroutine. + Downcast(VariantIdx), + + /// Like an explicit cast from an opaque type to a concrete type, but without + /// requiring an intermediate variable. + OpaqueCast(Ty), + + /// A `Subtype(T)` projection is applied to any `StatementKind::Assign` where + /// type of lvalue doesn't match the type of rvalue, the primary goal is making subtyping + /// explicit during optimizations and codegen. + /// + /// This projection doesn't impact the runtime behavior of the program except for potentially changing + /// some type metadata of the interpreter or codegen backend. + Subtype(Ty), } #[derive(Clone, Debug, Eq, PartialEq)] pub struct UserTypeProjection { pub base: UserTypeAnnotationIndex, - pub projection: String, + + pub projection: Opaque, } pub type Local = usize; pub const RETURN_LOCAL: Local = 0; +/// The source-order index of a field in a variant. +/// +/// For example, in the following types, +/// ```ignore(illustrative) +/// enum Demo1 { +/// Variant0 { a: bool, b: i32 }, +/// Variant1 { c: u8, d: u64 }, +/// } +/// struct Demo2 { e: u8, f: u16, g: u8 } +/// ``` +/// `a`'s `FieldIdx` is `0`, +/// `b`'s `FieldIdx` is `1`, +/// `c`'s `FieldIdx` is `0`, and +/// `g`'s `FieldIdx` is `2`. type FieldIdx = usize; /// The source-order index of a variant in a type. +/// +/// For example, in the following types, +/// ```ignore(illustrative) +/// enum Demo1 { +/// Variant0 { a: bool, b: i32 }, +/// Variant1 { c: u8, d: u64 }, +/// } +/// struct Demo2 { e: u8, f: u16, g: u8 } +/// ``` +/// `a` is in the variant with the `VariantIdx` of `0`, +/// `c` is in the variant with the `VariantIdx` of `1`, and +/// `g` is in the variant with the `VariantIdx` of `0`. pub type VariantIdx = usize; type UserTypeAnnotationIndex = usize; @@ -536,6 +642,10 @@ impl Constant { } impl Place { + // FIXME(klinvill): This function is expected to resolve down the chain of projections to get + // the type referenced at the end of it. E.g. calling `ty()` on `*(_1.f)` should end up + // returning the type referenced by `f`. The information needed to do this may not currently be + // present in Stable MIR since at least an implementation for AdtDef is probably needed. pub fn ty(&self, locals: &[LocalDecl]) -> Ty { let _start_ty = locals[self.local].ty; todo!("Implement projection") diff --git a/compiler/stable_mir/src/mir/visit.rs b/compiler/stable_mir/src/mir/visit.rs index 806dced71ff..475d6e9763d 100644 --- a/compiler/stable_mir/src/mir/visit.rs +++ b/compiler/stable_mir/src/mir/visit.rs @@ -76,6 +76,15 @@ pub trait MirVisitor { self.super_place(place, ptx, location) } + fn visit_projection_elem( + &mut self, + elem: &ProjectionElem, + ptx: PlaceContext, + location: Location, + ) { + self.super_projection_elem(elem, ptx, location); + } + fn visit_local(&mut self, local: &Local, ptx: PlaceContext, location: Location) { let _ = (local, ptx, location); } @@ -264,7 +273,29 @@ pub trait MirVisitor { fn super_place(&mut self, place: &Place, ptx: PlaceContext, location: Location) { let _ = location; let _ = ptx; - visit_opaque(&Opaque(place.projection.clone())); + self.visit_local(&place.local, ptx, location); + + for elem in &place.projection { + self.visit_projection_elem(elem, ptx, location); + } + } + + fn super_projection_elem( + &mut self, + elem: &ProjectionElem, + ptx: PlaceContext, + location: Location, + ) { + match elem { + ProjectionElem::Deref => {} + ProjectionElem::Field(_idx, ty) => self.visit_ty(ty, location), + ProjectionElem::Index(local) => self.visit_local(local, ptx, location), + ProjectionElem::ConstantIndex { offset: _, min_length: _, from_end: _ } => {} + ProjectionElem::Subslice { from: _, to: _, from_end: _ } => {} + ProjectionElem::Downcast(_idx) => {} + ProjectionElem::OpaqueCast(ty) => self.visit_ty(ty, location), + ProjectionElem::Subtype(ty) => self.visit_ty(ty, location), + } } fn super_rvalue(&mut self, rvalue: &Rvalue, location: Location) { diff --git a/compiler/stable_mir/src/ty.rs b/compiler/stable_mir/src/ty.rs index 5dfaa0fd891..e95c09abe78 100644 --- a/compiler/stable_mir/src/ty.rs +++ b/compiler/stable_mir/src/ty.rs @@ -61,8 +61,8 @@ pub struct Region { #[derive(Clone, Debug, Eq, PartialEq)] pub enum RegionKind { - ReEarlyBound(EarlyBoundRegion), - ReLateBound(DebruijnIndex, BoundRegion), + ReEarlyParam(EarlyParamRegion), + ReBound(DebruijnIndex, BoundRegion), ReStatic, RePlaceholder(Placeholder<BoundRegion>), ReErased, @@ -71,7 +71,7 @@ pub enum RegionKind { pub(crate) type DebruijnIndex = u32; #[derive(Clone, Debug, Eq, PartialEq)] -pub struct EarlyBoundRegion { +pub struct EarlyParamRegion { pub def_id: RegionDef, pub index: u32, pub name: Symbol, @@ -156,6 +156,7 @@ pub enum RigidTy { Dynamic(Vec<Binder<ExistentialPredicate>>, Region, DynKind), Never, Tuple(Vec<Ty>), + CoroutineWitness(CoroutineWitnessDef, GenericArgs), } #[derive(Clone, Copy, Debug, PartialEq, Eq)] @@ -235,6 +236,9 @@ pub struct ImplDef(pub DefId); #[derive(Clone, PartialEq, Eq, Debug)] pub struct RegionDef(pub DefId); +#[derive(Clone, PartialEq, Eq, Debug)] +pub struct CoroutineWitnessDef(pub DefId); + /// A list of generic arguments. #[derive(Clone, Debug, Eq, PartialEq)] pub struct GenericArgs(pub Vec<GenericArgKind>); diff --git a/compiler/stable_mir/src/visitor.rs b/compiler/stable_mir/src/visitor.rs index 05e0b9b4d78..65e42879d61 100644 --- a/compiler/stable_mir/src/visitor.rs +++ b/compiler/stable_mir/src/visitor.rs @@ -149,6 +149,7 @@ impl Visitable for RigidTy { RigidTy::FnPtr(sig) => sig.visit(visitor), RigidTy::Closure(_, args) => args.visit(visitor), RigidTy::Coroutine(_, args, _) => args.visit(visitor), + RigidTy::CoroutineWitness(_, args) => args.visit(visitor), RigidTy::Dynamic(pred, r, _) => { pred.visit(visitor)?; r.visit(visitor) diff --git a/library/alloc/src/lib.rs b/library/alloc/src/lib.rs index d33c4418e1b..f07c76232eb 100644 --- a/library/alloc/src/lib.rs +++ b/library/alloc/src/lib.rs @@ -270,7 +270,7 @@ pub(crate) mod test_helpers { /// seed not being the same for every RNG invocation too. pub(crate) fn test_rng() -> rand_xorshift::XorShiftRng { use std::hash::{BuildHasher, Hash, Hasher}; - let mut hasher = std::collections::hash_map::RandomState::new().build_hasher(); + let mut hasher = std::hash::RandomState::new().build_hasher(); std::panic::Location::caller().hash(&mut hasher); let hc64 = hasher.finish(); let seed_vec = diff --git a/library/alloc/src/vec/mod.rs b/library/alloc/src/vec/mod.rs index 6c78d65f1c9..ea7d6f6f4a6 100644 --- a/library/alloc/src/vec/mod.rs +++ b/library/alloc/src/vec/mod.rs @@ -2706,7 +2706,7 @@ impl<T: Clone, A: Allocator + Clone> Clone for Vec<T, A> { /// ``` /// use std::hash::BuildHasher; /// -/// let b = std::collections::hash_map::RandomState::new(); +/// let b = std::hash::RandomState::new(); /// let v: Vec<u8> = vec![0xa8, 0x3c, 0x09]; /// let s: &[u8] = &[0xa8, 0x3c, 0x09]; /// assert_eq!(b.hash_one(v), b.hash_one(s)); diff --git a/library/alloc/tests/lib.rs b/library/alloc/tests/lib.rs index aa7a331b368..6d5c17ef023 100644 --- a/library/alloc/tests/lib.rs +++ b/library/alloc/tests/lib.rs @@ -43,8 +43,7 @@ #![deny(fuzzy_provenance_casts)] #![deny(unsafe_op_in_unsafe_fn)] -use std::collections::hash_map::DefaultHasher; -use std::hash::{Hash, Hasher}; +use std::hash::{DefaultHasher, Hash, Hasher}; mod arc; mod autotraits; diff --git a/library/core/src/array/mod.rs b/library/core/src/array/mod.rs index ebd4a8c05fe..9c8d7bbd999 100644 --- a/library/core/src/array/mod.rs +++ b/library/core/src/array/mod.rs @@ -297,7 +297,7 @@ impl<'a, T, const N: usize> TryFrom<&'a mut [T]> for &'a mut [T; N] { /// ``` /// use std::hash::BuildHasher; /// -/// let b = std::collections::hash_map::RandomState::new(); +/// let b = std::hash::RandomState::new(); /// let a: [u8; 3] = [0xa8, 0x3c, 0x09]; /// let s: &[u8] = &[0xa8, 0x3c, 0x09]; /// assert_eq!(b.hash_one(a), b.hash_one(s)); diff --git a/library/core/src/fmt/num.rs b/library/core/src/fmt/num.rs index 4f42f73ebba..778515f8616 100644 --- a/library/core/src/fmt/num.rs +++ b/library/core/src/fmt/num.rs @@ -309,7 +309,6 @@ macro_rules! impl_Exp { n /= 10; exponent += 1; } - let (added_precision, subtracted_precision) = match f.precision() { Some(fmt_prec) => { // number of decimal digits minus 1 @@ -331,9 +330,15 @@ macro_rules! impl_Exp { let rem = n % 10; n /= 10; exponent += 1; - // round up last digit - if rem >= 5 { + // round up last digit, round to even on a tie + if rem > 5 || (rem == 5 && (n % 2 != 0 || subtracted_precision > 1 )) { n += 1; + // if the digit is rounded to the next power + // instead adjust the exponent + if n.ilog10() > (n - 1).ilog10() { + n /= 10; + exponent += 1; + } } } (n, exponent, exponent, added_precision) diff --git a/library/core/src/hash/mod.rs b/library/core/src/hash/mod.rs index 35b757dc1ee..153971a59c5 100644 --- a/library/core/src/hash/mod.rs +++ b/library/core/src/hash/mod.rs @@ -12,8 +12,7 @@ //! # Examples //! //! ```rust -//! use std::collections::hash_map::DefaultHasher; -//! use std::hash::{Hash, Hasher}; +//! use std::hash::{DefaultHasher, Hash, Hasher}; //! //! #[derive(Hash)] //! struct Person { @@ -46,8 +45,7 @@ //! the [`Hash`] trait: //! //! ```rust -//! use std::collections::hash_map::DefaultHasher; -//! use std::hash::{Hash, Hasher}; +//! use std::hash::{DefaultHasher, Hash, Hasher}; //! //! struct Person { //! id: u32, @@ -194,8 +192,7 @@ pub trait Hash { /// # Examples /// /// ``` - /// use std::collections::hash_map::DefaultHasher; - /// use std::hash::{Hash, Hasher}; + /// use std::hash::{DefaultHasher, Hash, Hasher}; /// /// let mut hasher = DefaultHasher::new(); /// 7920.hash(&mut hasher); @@ -224,8 +221,7 @@ pub trait Hash { /// # Examples /// /// ``` - /// use std::collections::hash_map::DefaultHasher; - /// use std::hash::{Hash, Hasher}; + /// use std::hash::{DefaultHasher, Hash, Hasher}; /// /// let mut hasher = DefaultHasher::new(); /// let numbers = [6, 28, 496, 8128]; @@ -300,8 +296,7 @@ pub use macros::Hash; /// # Examples /// /// ``` -/// use std::collections::hash_map::DefaultHasher; -/// use std::hash::Hasher; +/// use std::hash::{DefaultHasher, Hasher}; /// /// let mut hasher = DefaultHasher::new(); /// @@ -329,8 +324,7 @@ pub trait Hasher { /// # Examples /// /// ``` - /// use std::collections::hash_map::DefaultHasher; - /// use std::hash::Hasher; + /// use std::hash::{DefaultHasher, Hasher}; /// /// let mut hasher = DefaultHasher::new(); /// hasher.write(b"Cool!"); @@ -347,8 +341,7 @@ pub trait Hasher { /// # Examples /// /// ``` - /// use std::collections::hash_map::DefaultHasher; - /// use std::hash::Hasher; + /// use std::hash::{DefaultHasher, Hasher}; /// /// let mut hasher = DefaultHasher::new(); /// let data = [0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef]; @@ -627,8 +620,7 @@ impl<H: Hasher + ?Sized> Hasher for &mut H { /// # Examples /// /// ``` -/// use std::collections::hash_map::RandomState; -/// use std::hash::{BuildHasher, Hasher}; +/// use std::hash::{BuildHasher, Hasher, RandomState}; /// /// let s = RandomState::new(); /// let mut hasher_1 = s.build_hasher(); @@ -656,8 +648,7 @@ pub trait BuildHasher { /// # Examples /// /// ``` - /// use std::collections::hash_map::RandomState; - /// use std::hash::BuildHasher; + /// use std::hash::{BuildHasher, RandomState}; /// /// let s = RandomState::new(); /// let new_s = s.build_hasher(); @@ -690,7 +681,7 @@ pub trait BuildHasher { /// } /// /// // Then later, in a `#[test]` for the type... - /// let bh = std::collections::hash_map::RandomState::new(); + /// let bh = std::hash::RandomState::new(); /// assert_eq!( /// bh.hash_one(OrderAmbivalentPair(1, 2)), /// bh.hash_one(OrderAmbivalentPair(2, 1)) diff --git a/library/core/src/hash/sip.rs b/library/core/src/hash/sip.rs index 6b9f2e84257..78a232faaf8 100644 --- a/library/core/src/hash/sip.rs +++ b/library/core/src/hash/sip.rs @@ -14,7 +14,7 @@ use crate::ptr; /// /// See: <https://131002.net/siphash> #[unstable(feature = "hashmap_internals", issue = "none")] -#[deprecated(since = "1.13.0", note = "use `std::collections::hash_map::DefaultHasher` instead")] +#[deprecated(since = "1.13.0", note = "use `std::hash::DefaultHasher` instead")] #[derive(Debug, Clone, Default)] #[doc(hidden)] pub struct SipHasher13 { @@ -25,7 +25,7 @@ pub struct SipHasher13 { /// /// See: <https://131002.net/siphash/> #[unstable(feature = "hashmap_internals", issue = "none")] -#[deprecated(since = "1.13.0", note = "use `std::collections::hash_map::DefaultHasher` instead")] +#[deprecated(since = "1.13.0", note = "use `std::hash::DefaultHasher` instead")] #[derive(Debug, Clone, Default)] struct SipHasher24 { hasher: Hasher<Sip24Rounds>, @@ -44,7 +44,7 @@ struct SipHasher24 { /// it is not intended for cryptographic purposes. As such, all /// cryptographic uses of this implementation are _strongly discouraged_. #[stable(feature = "rust1", since = "1.0.0")] -#[deprecated(since = "1.13.0", note = "use `std::collections::hash_map::DefaultHasher` instead")] +#[deprecated(since = "1.13.0", note = "use `std::hash::DefaultHasher` instead")] #[derive(Debug, Clone, Default)] pub struct SipHasher(SipHasher24); @@ -147,10 +147,7 @@ impl SipHasher { /// Creates a new `SipHasher` with the two initial keys set to 0. #[inline] #[stable(feature = "rust1", since = "1.0.0")] - #[deprecated( - since = "1.13.0", - note = "use `std::collections::hash_map::DefaultHasher` instead" - )] + #[deprecated(since = "1.13.0", note = "use `std::hash::DefaultHasher` instead")] #[rustc_const_unstable(feature = "const_hash", issue = "104061")] #[must_use] pub const fn new() -> SipHasher { @@ -160,10 +157,7 @@ impl SipHasher { /// Creates a `SipHasher` that is keyed off the provided keys. #[inline] #[stable(feature = "rust1", since = "1.0.0")] - #[deprecated( - since = "1.13.0", - note = "use `std::collections::hash_map::DefaultHasher` instead" - )] + #[deprecated(since = "1.13.0", note = "use `std::hash::DefaultHasher` instead")] #[rustc_const_unstable(feature = "const_hash", issue = "104061")] #[must_use] pub const fn new_with_keys(key0: u64, key1: u64) -> SipHasher { @@ -175,10 +169,7 @@ impl SipHasher13 { /// Creates a new `SipHasher13` with the two initial keys set to 0. #[inline] #[unstable(feature = "hashmap_internals", issue = "none")] - #[deprecated( - since = "1.13.0", - note = "use `std::collections::hash_map::DefaultHasher` instead" - )] + #[deprecated(since = "1.13.0", note = "use `std::hash::DefaultHasher` instead")] #[rustc_const_unstable(feature = "const_hash", issue = "104061")] pub const fn new() -> SipHasher13 { SipHasher13::new_with_keys(0, 0) @@ -187,10 +178,7 @@ impl SipHasher13 { /// Creates a `SipHasher13` that is keyed off the provided keys. #[inline] #[unstable(feature = "hashmap_internals", issue = "none")] - #[deprecated( - since = "1.13.0", - note = "use `std::collections::hash_map::DefaultHasher` instead" - )] + #[deprecated(since = "1.13.0", note = "use `std::hash::DefaultHasher` instead")] #[rustc_const_unstable(feature = "const_hash", issue = "104061")] pub const fn new_with_keys(key0: u64, key1: u64) -> SipHasher13 { SipHasher13 { hasher: Hasher::new_with_keys(key0, key1) } diff --git a/library/core/src/intrinsics/mir.rs b/library/core/src/intrinsics/mir.rs index b26a17ec30e..0d8a306ace5 100644 --- a/library/core/src/intrinsics/mir.rs +++ b/library/core/src/intrinsics/mir.rs @@ -110,15 +110,15 @@ //! let popped; //! //! { -//! Call(_unused = Vec::push(v, value), pop) +//! Call(_unused = Vec::push(v, value), pop, UnwindContinue()) //! } //! //! pop = { -//! Call(popped = Vec::pop(v), drop) +//! Call(popped = Vec::pop(v), drop, UnwindContinue()) //! } //! //! drop = { -//! Drop(popped, ret) +//! Drop(popped, ret, UnwindContinue()) //! } //! //! ret = { @@ -238,10 +238,6 @@ //! //! #### 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`] and [`Drop`](Drop()) 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 @@ -260,7 +256,26 @@ /// Type representing basic blocks. /// /// All terminators will have this type as a return type. It helps achieve some type safety. -pub struct BasicBlock; +#[rustc_diagnostic_item = "mir_basic_block"] +pub enum BasicBlock { + /// A non-cleanup basic block. + Normal, + /// A basic block that lies on an unwind path. + Cleanup, +} + +/// The reason we are terminating the process during unwinding. +#[rustc_diagnostic_item = "mir_unwind_terminate_reason"] +pub enum UnwindTerminateReason { + /// Unwinding is just not possible given the ABI of this function. + Abi, + /// We were already cleaning up for an ongoing unwind, and a *second*, *nested* unwind was + /// triggered by the drop glue. + InCleanup, +} + +pub use UnwindTerminateReason::Abi as ReasonAbi; +pub use UnwindTerminateReason::InCleanup as ReasonInCleanup; macro_rules! define { ($name:literal, $( #[ $meta:meta ] )* fn $($sig:tt)*) => { @@ -271,11 +286,41 @@ macro_rules! define { } } +// Unwind actions +define!( + "mir_unwind_continue", + /// An unwind action that continues unwinding. + fn UnwindContinue() +); +define!( + "mir_unwind_unreachable", + /// An unwind action that triggers undefined behaviour. + fn UnwindUnreachable() -> BasicBlock +); +define!( + "mir_unwind_terminate", + /// An unwind action that terminates the execution. + /// + /// `UnwindTerminate` can also be used as a terminator. + fn UnwindTerminate(reason: UnwindTerminateReason) +); +define!( + "mir_unwind_cleanup", + /// An unwind action that continues execution in a given basic blok. + fn UnwindCleanup(goto: BasicBlock) +); + +// Terminators 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_call", fn Call(call: (), goto: BasicBlock)); +define!("mir_drop", fn Drop<T, U>(place: T, goto: BasicBlock, unwind_action: U)); +define!("mir_call", fn Call<U>(call: (), goto: BasicBlock, unwind_action: U)); +define!("mir_unwind_resume", + /// A terminator that resumes the unwinding. + fn UnwindResume() +); + define!("mir_storage_live", fn StorageLive<T>(local: T)); define!("mir_storage_dead", fn StorageDead<T>(local: T)); define!("mir_deinit", fn Deinit<T>(place: T)); @@ -382,16 +427,15 @@ pub macro mir { } $( - $block_name:ident = { + $block_name:ident $(($block_cleanup:ident))? = { $($block:tt)* } )* ) => {{ // First, we declare all basic blocks. - $( - let $block_name: ::core::intrinsics::mir::BasicBlock; - )* - + __internal_declare_basic_blocks!($( + $block_name $(($block_cleanup))? + )*); { // Now all locals #[allow(non_snake_case)] @@ -585,3 +629,17 @@ pub macro __internal_remove_let { } }, } + +/// Helper macro that declares the basic blocks. +#[doc(hidden)] +pub macro __internal_declare_basic_blocks { + () => {}, + ($name:ident (cleanup) $($rest:tt)*) => { + let $name = ::core::intrinsics::mir::BasicBlock::Cleanup; + __internal_declare_basic_blocks!($($rest)*) + }, + ($name:ident $($rest:tt)*) => { + let $name = ::core::intrinsics::mir::BasicBlock::Normal; + __internal_declare_basic_blocks!($($rest)*) + }, +} diff --git a/library/core/src/option.rs b/library/core/src/option.rs index acf3dfbdf4c..2303f289cdd 100644 --- a/library/core/src/option.rs +++ b/library/core/src/option.rs @@ -1079,8 +1079,6 @@ impl<T> Option<T> { /// # Examples /// /// ``` - /// #![feature(result_option_inspect)] - /// /// let v = vec![1, 2, 3, 4, 5]; /// /// // prints "got: 4" @@ -1090,11 +1088,8 @@ impl<T> Option<T> { /// let x: Option<&usize> = v.get(5).inspect(|x| println!("got: {x}")); /// ``` #[inline] - #[unstable(feature = "result_option_inspect", issue = "91345")] - pub fn inspect<F>(self, f: F) -> Self - where - F: FnOnce(&T), - { + #[stable(feature = "result_option_inspect", since = "CURRENT_RUSTC_VERSION")] + pub fn inspect<F: FnOnce(&T)>(self, f: F) -> Self { if let Some(ref x) = self { f(x); } diff --git a/library/core/src/ptr/mod.rs b/library/core/src/ptr/mod.rs index d71079dd09c..fc4943c2aa9 100644 --- a/library/core/src/ptr/mod.rs +++ b/library/core/src/ptr/mod.rs @@ -1921,8 +1921,7 @@ pub fn addr_eq<T: ?Sized, U: ?Sized>(p: *const T, q: *const U) -> bool { /// # Examples /// /// ``` -/// use std::collections::hash_map::DefaultHasher; -/// use std::hash::{Hash, Hasher}; +/// use std::hash::{DefaultHasher, Hash, Hasher}; /// use std::ptr; /// /// let five = 5; diff --git a/library/core/src/result.rs b/library/core/src/result.rs index 50127b27f8b..90c346e98bc 100644 --- a/library/core/src/result.rs +++ b/library/core/src/result.rs @@ -835,8 +835,6 @@ impl<T, E> Result<T, E> { /// # Examples /// /// ``` - /// #![feature(result_option_inspect)] - /// /// let x: u8 = "4" /// .parse::<u8>() /// .inspect(|x| println!("original: {x}")) @@ -844,7 +842,7 @@ impl<T, E> Result<T, E> { /// .expect("failed to parse number"); /// ``` #[inline] - #[unstable(feature = "result_option_inspect", issue = "91345")] + #[stable(feature = "result_option_inspect", since = "CURRENT_RUSTC_VERSION")] pub fn inspect<F: FnOnce(&T)>(self, f: F) -> Self { if let Ok(ref t) = self { f(t); @@ -858,8 +856,6 @@ impl<T, E> Result<T, E> { /// # Examples /// /// ``` - /// #![feature(result_option_inspect)] - /// /// use std::{fs, io}; /// /// fn read() -> io::Result<String> { @@ -868,7 +864,7 @@ impl<T, E> Result<T, E> { /// } /// ``` #[inline] - #[unstable(feature = "result_option_inspect", issue = "91345")] + #[stable(feature = "result_option_inspect", since = "CURRENT_RUSTC_VERSION")] pub fn inspect_err<F: FnOnce(&E)>(self, f: F) -> Self { if let Err(ref e) = self { f(e); diff --git a/library/core/tests/fmt/num.rs b/library/core/tests/fmt/num.rs index b9ede65c9ff..1ddcd5ab795 100644 --- a/library/core/tests/fmt/num.rs +++ b/library/core/tests/fmt/num.rs @@ -128,28 +128,40 @@ fn test_format_int_exp_precision() { let big_int: u32 = 314_159_265; assert_eq!(format!("{big_int:.1e}"), format!("{:.1e}", f64::from(big_int))); - //test adding precision + // test adding precision assert_eq!(format!("{:.10e}", i8::MIN), "-1.2800000000e2"); assert_eq!(format!("{:.10e}", i16::MIN), "-3.2768000000e4"); assert_eq!(format!("{:.10e}", i32::MIN), "-2.1474836480e9"); assert_eq!(format!("{:.20e}", i64::MIN), "-9.22337203685477580800e18"); assert_eq!(format!("{:.40e}", i128::MIN), "-1.7014118346046923173168730371588410572800e38"); - //test rounding + // test rounding assert_eq!(format!("{:.1e}", i8::MIN), "-1.3e2"); assert_eq!(format!("{:.1e}", i16::MIN), "-3.3e4"); assert_eq!(format!("{:.1e}", i32::MIN), "-2.1e9"); assert_eq!(format!("{:.1e}", i64::MIN), "-9.2e18"); assert_eq!(format!("{:.1e}", i128::MIN), "-1.7e38"); - //test huge precision + // test huge precision assert_eq!(format!("{:.1000e}", 1), format!("1.{}e0", "0".repeat(1000))); //test zero precision assert_eq!(format!("{:.0e}", 1), format!("1e0",)); assert_eq!(format!("{:.0e}", 35), format!("4e1",)); - //test padding with precision (and sign) + // test padding with precision (and sign) assert_eq!(format!("{:+10.3e}", 1), " +1.000e0"); + + // test precision remains correct when rounding to next power + + for i in i16::MIN..=i16::MAX { + for p in 0..=5 { + assert_eq!( + format!("{i:.p$e}"), + format!("{:.p$e}", f32::from(i)), + "integer {i} at precision {p}" + ); + } + } } #[test] diff --git a/library/core/tests/hash/mod.rs b/library/core/tests/hash/mod.rs index 033bd1ed6ed..5268f32c031 100644 --- a/library/core/tests/hash/mod.rs +++ b/library/core/tests/hash/mod.rs @@ -167,7 +167,7 @@ fn test_indirect_hasher() { #[test] fn test_build_hasher_object_safe() { - use std::collections::hash_map::{DefaultHasher, RandomState}; + use std::hash::{DefaultHasher, RandomState}; let _: &dyn BuildHasher<Hasher = DefaultHasher> = &RandomState::new(); } diff --git a/library/core/tests/lib.rs b/library/core/tests/lib.rs index 168b47dc99c..c167240ba24 100644 --- a/library/core/tests/lib.rs +++ b/library/core/tests/lib.rs @@ -169,7 +169,7 @@ mod waker; #[allow(dead_code)] // Not used in all configurations. pub(crate) fn test_rng() -> rand_xorshift::XorShiftRng { use core::hash::{BuildHasher, Hash, Hasher}; - let mut hasher = std::collections::hash_map::RandomState::new().build_hasher(); + let mut hasher = std::hash::RandomState::new().build_hasher(); core::panic::Location::caller().hash(&mut hasher); let hc64 = hasher.finish(); let seed_vec = hc64.to_le_bytes().into_iter().chain(0u8..8).collect::<Vec<u8>>(); diff --git a/library/std/src/collections/hash/map.rs b/library/std/src/collections/hash/map.rs index 4d109285d16..39e94902cfe 100644 --- a/library/std/src/collections/hash/map.rs +++ b/library/std/src/collections/hash/map.rs @@ -6,16 +6,13 @@ use self::Entry::*; use hashbrown::hash_map as base; use crate::borrow::Borrow; -use crate::cell::Cell; use crate::collections::TryReserveError; use crate::collections::TryReserveErrorKind; use crate::error::Error; use crate::fmt::{self, Debug}; -#[allow(deprecated)] -use crate::hash::{BuildHasher, Hash, Hasher, SipHasher13}; +use crate::hash::{BuildHasher, Hash, RandomState}; use crate::iter::FusedIterator; use crate::ops::Index; -use crate::sys; /// A [hash map] implemented with quadratic probing and SIMD lookup. /// @@ -274,7 +271,7 @@ impl<K, V, S> HashMap<K, V, S> { /// /// ``` /// use std::collections::HashMap; - /// use std::collections::hash_map::RandomState; + /// use std::hash::RandomState; /// /// let s = RandomState::new(); /// let mut map = HashMap::with_hasher(s); @@ -306,7 +303,7 @@ impl<K, V, S> HashMap<K, V, S> { /// /// ``` /// use std::collections::HashMap; - /// use std::collections::hash_map::RandomState; + /// use std::hash::RandomState; /// /// let s = RandomState::new(); /// let mut map = HashMap::with_capacity_and_hasher(10, s); @@ -717,7 +714,7 @@ impl<K, V, S> HashMap<K, V, S> { /// /// ``` /// use std::collections::HashMap; - /// use std::collections::hash_map::RandomState; + /// use std::hash::RandomState; /// /// let hasher = RandomState::new(); /// let map: HashMap<i32, i32> = HashMap::with_hasher(hasher); @@ -3072,152 +3069,6 @@ where } } -/// `RandomState` is the default state for [`HashMap`] types. -/// -/// A particular instance `RandomState` will create the same instances of -/// [`Hasher`], but the hashers created by two different `RandomState` -/// instances are unlikely to produce the same result for the same values. -/// -/// # Examples -/// -/// ``` -/// use std::collections::HashMap; -/// use std::collections::hash_map::RandomState; -/// -/// let s = RandomState::new(); -/// let mut map = HashMap::with_hasher(s); -/// map.insert(1, 2); -/// ``` -#[derive(Clone)] -#[stable(feature = "hashmap_build_hasher", since = "1.7.0")] -pub struct RandomState { - k0: u64, - k1: u64, -} - -impl RandomState { - /// Constructs a new `RandomState` that is initialized with random keys. - /// - /// # Examples - /// - /// ``` - /// use std::collections::hash_map::RandomState; - /// - /// let s = RandomState::new(); - /// ``` - #[inline] - #[allow(deprecated)] - // rand - #[must_use] - #[stable(feature = "hashmap_build_hasher", since = "1.7.0")] - pub fn new() -> RandomState { - // Historically this function did not cache keys from the OS and instead - // simply always called `rand::thread_rng().gen()` twice. In #31356 it - // was discovered, however, that because we re-seed the thread-local RNG - // from the OS periodically that this can cause excessive slowdown when - // many hash maps are created on a thread. To solve this performance - // trap we cache the first set of randomly generated keys per-thread. - // - // Later in #36481 it was discovered that exposing a deterministic - // iteration order allows a form of DOS attack. To counter that we - // increment one of the seeds on every RandomState creation, giving - // every corresponding HashMap a different iteration order. - thread_local!(static KEYS: Cell<(u64, u64)> = { - Cell::new(sys::hashmap_random_keys()) - }); - - KEYS.with(|keys| { - let (k0, k1) = keys.get(); - keys.set((k0.wrapping_add(1), k1)); - RandomState { k0, k1 } - }) - } -} - -#[stable(feature = "hashmap_build_hasher", since = "1.7.0")] -impl BuildHasher for RandomState { - type Hasher = DefaultHasher; - #[inline] - #[allow(deprecated)] - fn build_hasher(&self) -> DefaultHasher { - DefaultHasher(SipHasher13::new_with_keys(self.k0, self.k1)) - } -} - -/// The default [`Hasher`] used by [`RandomState`]. -/// -/// The internal algorithm is not specified, and so it and its hashes should -/// not be relied upon over releases. -#[stable(feature = "hashmap_default_hasher", since = "1.13.0")] -#[allow(deprecated)] -#[derive(Clone, Debug)] -pub struct DefaultHasher(SipHasher13); - -impl DefaultHasher { - /// Creates a new `DefaultHasher`. - /// - /// This hasher is not guaranteed to be the same as all other - /// `DefaultHasher` instances, but is the same as all other `DefaultHasher` - /// instances created through `new` or `default`. - #[stable(feature = "hashmap_default_hasher", since = "1.13.0")] - #[inline] - #[allow(deprecated)] - #[rustc_const_unstable(feature = "const_hash", issue = "104061")] - #[must_use] - pub const fn new() -> DefaultHasher { - DefaultHasher(SipHasher13::new_with_keys(0, 0)) - } -} - -#[stable(feature = "hashmap_default_hasher", since = "1.13.0")] -impl Default for DefaultHasher { - /// Creates a new `DefaultHasher` using [`new`]. - /// See its documentation for more. - /// - /// [`new`]: DefaultHasher::new - #[inline] - fn default() -> DefaultHasher { - DefaultHasher::new() - } -} - -#[stable(feature = "hashmap_default_hasher", since = "1.13.0")] -impl Hasher for DefaultHasher { - // The underlying `SipHasher13` doesn't override the other - // `write_*` methods, so it's ok not to forward them here. - - #[inline] - fn write(&mut self, msg: &[u8]) { - self.0.write(msg) - } - - #[inline] - fn write_str(&mut self, s: &str) { - self.0.write_str(s); - } - - #[inline] - fn finish(&self) -> u64 { - self.0.finish() - } -} - -#[stable(feature = "hashmap_build_hasher", since = "1.7.0")] -impl Default for RandomState { - /// Constructs a new `RandomState`. - #[inline] - fn default() -> RandomState { - RandomState::new() - } -} - -#[stable(feature = "std_debug", since = "1.16.0")] -impl fmt::Debug for RandomState { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.debug_struct("RandomState").finish_non_exhaustive() - } -} - #[inline] fn map_entry<'a, K: 'a, V: 'a>(raw: base::RustcEntry<'a, K, V>) -> Entry<'a, K, V> { match raw { diff --git a/library/std/src/collections/hash/map/tests.rs b/library/std/src/collections/hash/map/tests.rs index 91a3776e7be..8585376abc1 100644 --- a/library/std/src/collections/hash/map/tests.rs +++ b/library/std/src/collections/hash/map/tests.rs @@ -1,8 +1,8 @@ use super::Entry::{Occupied, Vacant}; use super::HashMap; -use super::RandomState; use crate::assert_matches::assert_matches; use crate::cell::RefCell; +use crate::hash::RandomState; use crate::test_helpers::test_rng; use rand::Rng; use realstd::collections::TryReserveErrorKind::*; diff --git a/library/std/src/collections/hash/set.rs b/library/std/src/collections/hash/set.rs index 6a87f6e5f2d..8bc59608290 100644 --- a/library/std/src/collections/hash/set.rs +++ b/library/std/src/collections/hash/set.rs @@ -6,11 +6,11 @@ use hashbrown::hash_set as base; use crate::borrow::Borrow; use crate::collections::TryReserveError; use crate::fmt; -use crate::hash::{BuildHasher, Hash}; +use crate::hash::{BuildHasher, Hash, RandomState}; use crate::iter::{Chain, FusedIterator}; use crate::ops::{BitAnd, BitOr, BitXor, Sub}; -use super::map::{map_try_reserve_error, RandomState}; +use super::map::map_try_reserve_error; /// A [hash set] implemented as a `HashMap` where the value is `()`. /// @@ -361,7 +361,7 @@ impl<T, S> HashSet<T, S> { /// /// ``` /// use std::collections::HashSet; - /// use std::collections::hash_map::RandomState; + /// use std::hash::RandomState; /// /// let s = RandomState::new(); /// let mut set = HashSet::with_hasher(s); @@ -393,7 +393,7 @@ impl<T, S> HashSet<T, S> { /// /// ``` /// use std::collections::HashSet; - /// use std::collections::hash_map::RandomState; + /// use std::hash::RandomState; /// /// let s = RandomState::new(); /// let mut set = HashSet::with_capacity_and_hasher(10, s); @@ -411,7 +411,7 @@ impl<T, S> HashSet<T, S> { /// /// ``` /// use std::collections::HashSet; - /// use std::collections::hash_map::RandomState; + /// use std::hash::RandomState; /// /// let hasher = RandomState::new(); /// let set: HashSet<i32> = HashSet::with_hasher(hasher); diff --git a/library/std/src/collections/hash/set/tests.rs b/library/std/src/collections/hash/set/tests.rs index e0cd80b44f8..208f61e755c 100644 --- a/library/std/src/collections/hash/set/tests.rs +++ b/library/std/src/collections/hash/set/tests.rs @@ -1,6 +1,6 @@ -use super::super::map::RandomState; use super::HashSet; +use crate::hash::RandomState; use crate::panic::{catch_unwind, AssertUnwindSafe}; use crate::sync::atomic::{AtomicU32, Ordering}; use crate::sync::Arc; diff --git a/library/std/src/collections/mod.rs b/library/std/src/collections/mod.rs index 42f738acb9f..1389d24a8c5 100644 --- a/library/std/src/collections/mod.rs +++ b/library/std/src/collections/mod.rs @@ -439,6 +439,11 @@ pub mod hash_map { //! A hash map implemented with quadratic probing and SIMD lookup. #[stable(feature = "rust1", since = "1.0.0")] pub use super::hash::map::*; + + #[stable(feature = "hashmap_build_hasher", since = "1.7.0")] + pub use crate::hash::random::DefaultHasher; + #[stable(feature = "hashmap_build_hasher", since = "1.7.0")] + pub use crate::hash::random::RandomState; } #[stable(feature = "rust1", since = "1.0.0")] diff --git a/library/std/src/hash/mod.rs b/library/std/src/hash/mod.rs new file mode 100644 index 00000000000..bd9bbf29875 --- /dev/null +++ b/library/std/src/hash/mod.rs @@ -0,0 +1,91 @@ +//! Generic hashing support. +//! +//! This module provides a generic way to compute the [hash] of a value. +//! Hashes are most commonly used with [`HashMap`] and [`HashSet`]. +//! +//! [hash]: https://en.wikipedia.org/wiki/Hash_function +//! [`HashMap`]: ../../std/collections/struct.HashMap.html +//! [`HashSet`]: ../../std/collections/struct.HashSet.html +//! +//! The simplest way to make a type hashable is to use `#[derive(Hash)]`: +//! +//! # Examples +//! +//! ```rust +//! use std::hash::{DefaultHasher, Hash, Hasher}; +//! +//! #[derive(Hash)] +//! struct Person { +//! id: u32, +//! name: String, +//! phone: u64, +//! } +//! +//! let person1 = Person { +//! id: 5, +//! name: "Janet".to_string(), +//! phone: 555_666_7777, +//! }; +//! let person2 = Person { +//! id: 5, +//! name: "Bob".to_string(), +//! phone: 555_666_7777, +//! }; +//! +//! assert!(calculate_hash(&person1) != calculate_hash(&person2)); +//! +//! fn calculate_hash<T: Hash>(t: &T) -> u64 { +//! let mut s = DefaultHasher::new(); +//! t.hash(&mut s); +//! s.finish() +//! } +//! ``` +//! +//! If you need more control over how a value is hashed, you need to implement +//! the [`Hash`] trait: +//! +//! ```rust +//! use std::hash::{DefaultHasher, Hash, Hasher}; +//! +//! struct Person { +//! id: u32, +//! # #[allow(dead_code)] +//! name: String, +//! phone: u64, +//! } +//! +//! impl Hash for Person { +//! fn hash<H: Hasher>(&self, state: &mut H) { +//! self.id.hash(state); +//! self.phone.hash(state); +//! } +//! } +//! +//! let person1 = Person { +//! id: 5, +//! name: "Janet".to_string(), +//! phone: 555_666_7777, +//! }; +//! let person2 = Person { +//! id: 5, +//! name: "Bob".to_string(), +//! phone: 555_666_7777, +//! }; +//! +//! assert_eq!(calculate_hash(&person1), calculate_hash(&person2)); +//! +//! fn calculate_hash<T: Hash>(t: &T) -> u64 { +//! let mut s = DefaultHasher::new(); +//! t.hash(&mut s); +//! s.finish() +//! } +//! ``` +#![stable(feature = "rust1", since = "1.0.0")] + +pub(crate) mod random; + +#[stable(feature = "rust1", since = "1.0.0")] +pub use core::hash::*; + +#[stable(feature = "std_hash_exports", since = "CURRENT_RUSTC_VERSION")] +pub use self::random::{DefaultHasher, RandomState}; diff --git a/library/std/src/hash/random.rs b/library/std/src/hash/random.rs new file mode 100644 index 00000000000..a1ccbb25369 --- /dev/null +++ b/library/std/src/hash/random.rs @@ -0,0 +1,161 @@ +//! This module exists to isolate [`RandomState`] and [`DefaultHasher`] outside of the +//! [`collections`] module without actually publicly exporting them, so that parts of that +//! implementation can more easily be moved to the [`alloc`] crate. +//! +//! Although its items are public and contain stability attributes, they can't actually be accessed +//! outside this crate. +//! +//! [`collections`]: crate::collections +#[allow(deprecated)] +use super::{BuildHasher, Hasher, SipHasher13}; +use crate::cell::Cell; +use crate::fmt; +use crate::sys; + +/// `RandomState` is the default state for [`HashMap`] types. +/// +/// A particular instance `RandomState` will create the same instances of +/// [`Hasher`], but the hashers created by two different `RandomState` +/// instances are unlikely to produce the same result for the same values. +/// +/// [`HashMap`]: crate::collections::HashMap +/// +/// # Examples +/// +/// ``` +/// use std::collections::HashMap; +/// use std::hash::RandomState; +/// +/// let s = RandomState::new(); +/// let mut map = HashMap::with_hasher(s); +/// map.insert(1, 2); +/// ``` +#[stable(feature = "hashmap_build_hasher", since = "1.7.0")] +#[derive(Clone)] +pub struct RandomState { + k0: u64, + k1: u64, +} + +impl RandomState { + /// Constructs a new `RandomState` that is initialized with random keys. + /// + /// # Examples + /// + /// ``` + /// use std::hash::RandomState; + /// + /// let s = RandomState::new(); + /// ``` + #[inline] + #[allow(deprecated)] + // rand + #[must_use] + #[stable(feature = "hashmap_build_hasher", since = "1.7.0")] + pub fn new() -> RandomState { + // Historically this function did not cache keys from the OS and instead + // simply always called `rand::thread_rng().gen()` twice. In #31356 it + // was discovered, however, that because we re-seed the thread-local RNG + // from the OS periodically that this can cause excessive slowdown when + // many hash maps are created on a thread. To solve this performance + // trap we cache the first set of randomly generated keys per-thread. + // + // Later in #36481 it was discovered that exposing a deterministic + // iteration order allows a form of DOS attack. To counter that we + // increment one of the seeds on every RandomState creation, giving + // every corresponding HashMap a different iteration order. + thread_local!(static KEYS: Cell<(u64, u64)> = { + Cell::new(sys::hashmap_random_keys()) + }); + + KEYS.with(|keys| { + let (k0, k1) = keys.get(); + keys.set((k0.wrapping_add(1), k1)); + RandomState { k0, k1 } + }) + } +} + +#[stable(feature = "hashmap_build_hasher", since = "1.7.0")] +impl BuildHasher for RandomState { + type Hasher = DefaultHasher; + #[inline] + #[allow(deprecated)] + fn build_hasher(&self) -> DefaultHasher { + DefaultHasher(SipHasher13::new_with_keys(self.k0, self.k1)) + } +} + +/// The default [`Hasher`] used by [`RandomState`]. +/// +/// The internal algorithm is not specified, and so it and its hashes should +/// not be relied upon over releases. +#[allow(deprecated)] +#[derive(Clone, Debug)] +#[stable(feature = "hashmap_build_hasher", since = "1.7.0")] +pub struct DefaultHasher(SipHasher13); + +impl DefaultHasher { + /// Creates a new `DefaultHasher`. + /// + /// This hasher is not guaranteed to be the same as all other + /// `DefaultHasher` instances, but is the same as all other `DefaultHasher` + /// instances created through `new` or `default`. + #[stable(feature = "hashmap_default_hasher", since = "1.13.0")] + #[inline] + #[allow(deprecated)] + #[rustc_const_unstable(feature = "const_hash", issue = "104061")] + #[must_use] + pub const fn new() -> DefaultHasher { + DefaultHasher(SipHasher13::new_with_keys(0, 0)) + } +} + +#[stable(feature = "hashmap_default_hasher", since = "1.13.0")] +impl Default for DefaultHasher { + /// Creates a new `DefaultHasher` using [`new`]. + /// See its documentation for more. + /// + /// [`new`]: DefaultHasher::new + #[inline] + fn default() -> DefaultHasher { + DefaultHasher::new() + } +} + +#[stable(feature = "hashmap_default_hasher", since = "1.13.0")] +impl Hasher for DefaultHasher { + // The underlying `SipHasher13` doesn't override the other + // `write_*` methods, so it's ok not to forward them here. + + #[inline] + fn write(&mut self, msg: &[u8]) { + self.0.write(msg) + } + + #[inline] + fn write_str(&mut self, s: &str) { + self.0.write_str(s); + } + + #[inline] + fn finish(&self) -> u64 { + self.0.finish() + } +} + +#[stable(feature = "hashmap_build_hasher", since = "1.7.0")] +impl Default for RandomState { + /// Constructs a new `RandomState`. + #[inline] + fn default() -> RandomState { + RandomState::new() + } +} + +#[stable(feature = "std_debug", since = "1.16.0")] +impl fmt::Debug for RandomState { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.debug_struct("RandomState").finish_non_exhaustive() + } +} diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs index 42589012257..f716c0fe922 100644 --- a/library/std/src/lib.rs +++ b/library/std/src/lib.rs @@ -494,8 +494,6 @@ pub use core::convert; pub use core::default; #[stable(feature = "futures_api", since = "1.36.0")] pub use core::future; -#[stable(feature = "rust1", since = "1.0.0")] -pub use core::hash; #[stable(feature = "core_hint", since = "1.27.0")] pub use core::hint; #[stable(feature = "i128", since = "1.26.0")] @@ -565,6 +563,7 @@ pub mod env; pub mod error; pub mod ffi; pub mod fs; +pub mod hash; pub mod io; pub mod net; pub mod num; @@ -716,7 +715,7 @@ pub(crate) mod test_helpers { #[track_caller] pub(crate) fn test_rng() -> rand_xorshift::XorShiftRng { use core::hash::{BuildHasher, Hash, Hasher}; - let mut hasher = crate::collections::hash_map::RandomState::new().build_hasher(); + let mut hasher = crate::hash::RandomState::new().build_hasher(); core::panic::Location::caller().hash(&mut hasher); let hc64 = hasher.finish(); let seed_vec = hc64.to_le_bytes().into_iter().chain(0u8..8).collect::<Vec<u8>>(); diff --git a/library/std/src/path/tests.rs b/library/std/src/path/tests.rs index f12ffbf2e01..dbc0f7d9df3 100644 --- a/library/std/src/path/tests.rs +++ b/library/std/src/path/tests.rs @@ -1,8 +1,7 @@ use super::*; -use crate::collections::hash_map::DefaultHasher; use crate::collections::{BTreeSet, HashSet}; -use crate::hash::Hasher; +use crate::hash::{DefaultHasher, Hasher}; use crate::rc::Rc; use crate::sync::Arc; use core::hint::black_box; @@ -1461,8 +1460,7 @@ fn test_eq_receivers() { #[test] pub fn test_compare() { - use crate::collections::hash_map::DefaultHasher; - use crate::hash::{Hash, Hasher}; + use crate::hash::{DefaultHasher, Hash, Hasher}; fn hash<T: Hash>(t: T) -> u64 { let mut s = DefaultHasher::new(); diff --git a/library/std/tests/common/mod.rs b/library/std/tests/common/mod.rs index 358c2c3f9b2..1aad6549e76 100644 --- a/library/std/tests/common/mod.rs +++ b/library/std/tests/common/mod.rs @@ -1,17 +1,17 @@ #![allow(unused)] +use rand::RngCore; use std::env; use std::fs; use std::path::{Path, PathBuf}; use std::thread; -use rand::RngCore; /// Copied from `std::test_helpers::test_rng`, since these tests rely on the /// seed not being the same for every RNG invocation too. #[track_caller] pub(crate) fn test_rng() -> rand_xorshift::XorShiftRng { use core::hash::{BuildHasher, Hash, Hasher}; - let mut hasher = std::collections::hash_map::RandomState::new().build_hasher(); + let mut hasher = std::hash::RandomState::new().build_hasher(); core::panic::Location::caller().hash(&mut hasher); let hc64 = hasher.finish(); let seed_vec = hc64.to_le_bytes().into_iter().chain(0u8..8).collect::<Vec<u8>>(); diff --git a/library/test/src/helpers/shuffle.rs b/library/test/src/helpers/shuffle.rs index ca503106c55..2ac3bfbd4d6 100644 --- a/library/test/src/helpers/shuffle.rs +++ b/library/test/src/helpers/shuffle.rs @@ -1,7 +1,6 @@ use crate::cli::TestOpts; use crate::types::{TestDescAndFn, TestId, TestName}; -use std::collections::hash_map::DefaultHasher; -use std::hash::Hasher; +use std::hash::{DefaultHasher, Hasher}; use std::time::{SystemTime, UNIX_EPOCH}; pub fn get_shuffle_seed(opts: &TestOpts) -> Option<u64> { diff --git a/library/test/src/lib.rs b/library/test/src/lib.rs index bddf75dffbb..f92ffa94e99 100644 --- a/library/test/src/lib.rs +++ b/library/test/src/lib.rs @@ -264,8 +264,8 @@ pub fn run_tests<F>( where F: FnMut(TestEvent) -> io::Result<()>, { - use std::collections::{self, HashMap}; - use std::hash::BuildHasherDefault; + use std::collections::HashMap; + use std::hash::{BuildHasherDefault, DefaultHasher}; use std::sync::mpsc::RecvTimeoutError; struct RunningTest { @@ -286,8 +286,7 @@ where } // Use a deterministic hasher - type TestMap = - HashMap<TestId, RunningTest, BuildHasherDefault<collections::hash_map::DefaultHasher>>; + type TestMap = HashMap<TestId, RunningTest, BuildHasherDefault<DefaultHasher>>; struct TimeoutEntry { id: TestId, diff --git a/src/bootstrap/src/core/build_steps/check.rs b/src/bootstrap/src/core/build_steps/check.rs index 121925b56a0..d36c41906b0 100644 --- a/src/bootstrap/src/core/build_steps/check.rs +++ b/src/bootstrap/src/core/build_steps/check.rs @@ -376,12 +376,12 @@ impl Step for RustAnalyzer { let compiler = builder.compiler(builder.top_stage, builder.config.build); let target = self.target; - builder.ensure(Std::new(target)); + builder.ensure(Rustc::new(target, builder)); let mut cargo = prepare_tool_cargo( builder, compiler, - Mode::ToolStd, + Mode::ToolRustc, target, cargo_subcommand(builder.kind), "src/tools/rust-analyzer", @@ -414,7 +414,7 @@ impl Step for RustAnalyzer { /// Cargo's output path in a given stage, compiled by a particular /// compiler for the specified target. fn stamp(builder: &Builder<'_>, compiler: Compiler, target: TargetSelection) -> PathBuf { - builder.cargo_out(compiler, Mode::ToolStd, target).join(".rust-analyzer-check.stamp") + builder.cargo_out(compiler, Mode::ToolRustc, target).join(".rust-analyzer-check.stamp") } } } diff --git a/src/bootstrap/src/core/build_steps/dist.rs b/src/bootstrap/src/core/build_steps/dist.rs index 950845b736f..c485481b9a1 100644 --- a/src/bootstrap/src/core/build_steps/dist.rs +++ b/src/bootstrap/src/core/build_steps/dist.rs @@ -1630,14 +1630,11 @@ impl Step for Extended { prepare("rust-analysis"); prepare("clippy"); prepare("rust-analyzer"); - for tool in &["rust-docs", "rust-demangler", "miri"] { + for tool in &["rust-docs", "rust-demangler", "miri", "rustc-codegen-cranelift"] { if built_tools.contains(tool) { prepare(tool); } } - if builder.config.rust_codegen_backends.contains(&INTERNER.intern_str("cranelift")) { - prepare("rustc-codegen-cranelift"); - } // create an 'uninstall' package builder.install(&etc.join("pkg/postinstall"), &pkg.join("uninstall"), 0o755); pkgbuild("uninstall"); diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index d2aa89dee28..254fbc72a8c 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -369,7 +369,7 @@ impl Step for RustAnalyzer { // We don't need to build the whole Rust Analyzer for the proc-macro-srv test suite, // but we do need the standard library to be present. - builder.ensure(compile::Std::new(compiler, host)); + builder.ensure(compile::Rustc::new(compiler, host)); let workspace_path = "src/tools/rust-analyzer"; // until the whole RA test suite runs on `i686`, we only run @@ -378,7 +378,7 @@ impl Step for RustAnalyzer { let mut cargo = tool::prepare_tool_cargo( builder, compiler, - Mode::ToolStd, + Mode::ToolRustc, host, "test", crate_path, diff --git a/src/bootstrap/src/core/build_steps/tool.rs b/src/bootstrap/src/core/build_steps/tool.rs index d1bc05e51d7..e8327b751d3 100644 --- a/src/bootstrap/src/core/build_steps/tool.rs +++ b/src/bootstrap/src/core/build_steps/tool.rs @@ -603,8 +603,7 @@ pub struct RustAnalyzer { } impl RustAnalyzer { - pub const ALLOW_FEATURES: &'static str = - "proc_macro_internals,proc_macro_diagnostic,proc_macro_span,proc_macro_span_shrink"; + pub const ALLOW_FEATURES: &'static str = "rustc_private,proc_macro_internals,proc_macro_diagnostic,proc_macro_span,proc_macro_span_shrink"; } impl Step for RustAnalyzer { @@ -636,7 +635,7 @@ impl Step for RustAnalyzer { compiler: self.compiler, target: self.target, tool: "rust-analyzer", - mode: Mode::ToolStd, + mode: Mode::ToolRustc, path: "src/tools/rust-analyzer", extra_features: vec!["rust-analyzer/in-rust-tree".to_owned()], is_optional_tool: false, diff --git a/src/doc/unstable-book/src/compiler-flags/llvm-module-flag.md b/src/doc/unstable-book/src/compiler-flags/llvm-module-flag.md new file mode 100644 index 00000000000..454ad0a9a6d --- /dev/null +++ b/src/doc/unstable-book/src/compiler-flags/llvm-module-flag.md @@ -0,0 +1,12 @@ +# `llvm-module-flag` + +--------------------- + +This flag allows adding a key/value to the `!llvm.module.flags` metadata in the +LLVM-IR for a compiled Rust module. The syntax is + +`-Z llvm_module_flag=<name>:<type>:<value>:<behavior>` + +Currently only u32 values are supported but the type is required to be specified +for forward compatibility. The `behavior` element must match one of the named +LLVM [metadata behaviors](https://llvm.org/docs/LangRef.html#module-flags-metadata) diff --git a/src/librustdoc/clean/auto_trait.rs b/src/librustdoc/clean/auto_trait.rs index bdf6a0f6b23..007c5e113b7 100644 --- a/src/librustdoc/clean/auto_trait.rs +++ b/src/librustdoc/clean/auto_trait.rs @@ -723,7 +723,7 @@ where fn region_name(region: Region<'_>) -> Option<Symbol> { match *region { - ty::ReEarlyBound(r) => Some(r.name), + ty::ReEarlyParam(r) => Some(r.name), _ => None, } } @@ -743,7 +743,7 @@ impl<'a, 'tcx> TypeFolder<TyCtxt<'tcx>> for RegionReplacer<'a, 'tcx> { match *r { // These are the regions that can be seen in the AST. ty::ReVar(vid) => self.vid_to_region.get(&vid).cloned().unwrap_or(r), - ty::ReEarlyBound(_) | ty::ReStatic | ty::ReLateBound(..) | ty::ReError(_) => r, + ty::ReEarlyParam(_) | ty::ReStatic | ty::ReBound(..) | ty::ReError(_) => r, r => bug!("unexpected region: {r:?}"), } } diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs index 1b7ca7bf7dd..429589f01fd 100644 --- a/src/librustdoc/clean/mod.rs +++ b/src/librustdoc/clean/mod.rs @@ -286,12 +286,10 @@ pub(crate) fn clean_middle_region<'tcx>(region: ty::Region<'tcx>) -> Option<Life match *region { ty::ReStatic => Some(Lifetime::statik()), _ if !region.has_name() => None, - ty::ReLateBound(_, ty::BoundRegion { kind: ty::BrNamed(_, name), .. }) => { - Some(Lifetime(name)) - } - ty::ReEarlyBound(ref data) => Some(Lifetime(data.name)), - ty::ReLateBound(..) - | ty::ReFree(..) + ty::ReBound(_, ty::BoundRegion { kind: ty::BrNamed(_, name), .. }) => Some(Lifetime(name)), + ty::ReEarlyParam(ref data) => Some(Lifetime(data.name)), + ty::ReBound(..) + | ty::ReLateParam(..) | ty::ReVar(..) | ty::ReError(_) | ty::RePlaceholder(..) @@ -1930,15 +1928,13 @@ fn clean_trait_object_lifetime_bound<'tcx>( // latter contrary to `clean_middle_region`. match *region { ty::ReStatic => Some(Lifetime::statik()), - ty::ReEarlyBound(region) if region.name != kw::Empty => Some(Lifetime(region.name)), - ty::ReLateBound(_, ty::BoundRegion { kind: ty::BrNamed(_, name), .. }) - if name != kw::Empty => - { + ty::ReEarlyParam(region) if region.name != kw::Empty => Some(Lifetime(region.name)), + ty::ReBound(_, ty::BoundRegion { kind: ty::BrNamed(_, name), .. }) if name != kw::Empty => { Some(Lifetime(name)) } - ty::ReEarlyBound(_) - | ty::ReLateBound(..) - | ty::ReFree(_) + ty::ReEarlyParam(_) + | ty::ReBound(..) + | ty::ReLateParam(_) | ty::ReVar(_) | ty::RePlaceholder(_) | ty::ReErased diff --git a/src/librustdoc/html/static/js/main.js b/src/librustdoc/html/static/js/main.js index 7c052606aba..615fb08c76f 100644 --- a/src/librustdoc/html/static/js/main.js +++ b/src/librustdoc/html/static/js/main.js @@ -54,7 +54,7 @@ function setMobileTopbar() { if (mobileTopbar) { const mobileTitle = document.createElement("h2"); mobileTitle.className = "location"; - if (hasClass(document.body, "crate")) { + if (hasClass(document.querySelector(".rustdoc"), "crate")) { mobileTitle.innerText = `Crate ${window.currentCrate}`; } else if (locationTitle) { mobileTitle.innerHTML = locationTitle.innerHTML; @@ -485,7 +485,7 @@ function preLoadCss(cssUrl) { return; } - const modpath = hasClass(document.body, "mod") ? "../" : ""; + const modpath = hasClass(document.querySelector(".rustdoc"), "mod") ? "../" : ""; const h3 = document.createElement("h3"); h3.innerHTML = `<a href="${modpath}index.html#${id}">${longty}</a>`; diff --git a/src/librustdoc/html/templates/type_layout.html b/src/librustdoc/html/templates/type_layout.html index b8b7785a2a1..c75fc34a9df 100644 --- a/src/librustdoc/html/templates/type_layout.html +++ b/src/librustdoc/html/templates/type_layout.html @@ -54,7 +54,7 @@ <strong>Note:</strong> Encountered an error during type layout; {#+ #} the type failed to be normalized. {# #} </p> {# #} - {% when Err(LayoutError::Cycle) %} + {% when Err(LayoutError::Cycle(_)) %} <p> {# #} <strong>Note:</strong> Encountered an error during type layout; {#+ #} the type's layout depended on the type's layout itself. {# #} diff --git a/src/librustdoc/lib.rs b/src/librustdoc/lib.rs index dda06d4c9c1..a43ea5582b7 100644 --- a/src/librustdoc/lib.rs +++ b/src/librustdoc/lib.rs @@ -53,6 +53,7 @@ extern crate rustc_interface; extern crate rustc_lexer; extern crate rustc_lint; extern crate rustc_lint_defs; +extern crate rustc_log; extern crate rustc_macros; extern crate rustc_metadata; extern crate rustc_middle; @@ -175,7 +176,7 @@ pub fn main() { // in the sysroot), and all of rustdoc's logging goes to its version (the one in Cargo.toml). init_logging(&handler); - rustc_driver::init_env_logger(&handler, "RUSTDOC_LOG"); + rustc_driver::init_logger(&handler, rustc_log::LoggerConfig::from_env("RUSTDOC_LOG")); let exit_code = rustc_driver::catch_with_exit_code(|| match get_args(&handler) { Some(args) => main_args(&mut handler, &args, using_internal_features), diff --git a/src/llvm-project b/src/llvm-project -Subproject fef3d7b14ede45d051dc688aae0bb8c8b02a056 +Subproject 7738295178045041669876bf32b0543ec8319a5 diff --git a/src/tools/cargo b/src/tools/cargo -Subproject 6790a5127895debec95c24aefaeb18e059270df +Subproject 2c03e0e2dcd05dd064fcf10cc1050d342eaf67e diff --git a/src/tools/clippy/clippy_lints/src/eta_reduction.rs b/src/tools/clippy/clippy_lints/src/eta_reduction.rs index fad8fbf0449..02c53fafd69 100644 --- a/src/tools/clippy/clippy_lints/src/eta_reduction.rs +++ b/src/tools/clippy/clippy_lints/src/eta_reduction.rs @@ -247,8 +247,8 @@ fn check_sig<'tcx>(cx: &LateContext<'tcx>, closure: ClosureArgs<'tcx>, call_sig: /// This is needed because rustc is unable to late bind early-bound regions in a function signature. fn has_late_bound_to_non_late_bound_regions(from_sig: FnSig<'_>, to_sig: FnSig<'_>) -> bool { fn check_region(from_region: Region<'_>, to_region: Region<'_>) -> bool { - matches!(from_region.kind(), RegionKind::ReLateBound(..)) - && !matches!(to_region.kind(), RegionKind::ReLateBound(..)) + matches!(from_region.kind(), RegionKind::ReBound(..)) + && !matches!(to_region.kind(), RegionKind::ReBound(..)) } fn check_subs(from_subs: &[GenericArg<'_>], to_subs: &[GenericArg<'_>]) -> bool { @@ -290,7 +290,7 @@ fn has_late_bound_to_non_late_bound_regions(from_sig: FnSig<'_>, to_sig: FnSig<' .zip(to_tys) .any(|(from_ty, to_ty)| check_ty(from_ty, to_ty)) }, - _ => from_ty.has_late_bound_regions(), + _ => from_ty.has_bound_regions(), } } diff --git a/src/tools/clippy/clippy_lints/src/pass_by_ref_or_value.rs b/src/tools/clippy/clippy_lints/src/pass_by_ref_or_value.rs index 4d7a055dae1..4db65b0d04f 100644 --- a/src/tools/clippy/clippy_lints/src/pass_by_ref_or_value.rs +++ b/src/tools/clippy/clippy_lints/src/pass_by_ref_or_value.rs @@ -168,14 +168,14 @@ impl<'tcx> PassByRefOrValue { match *ty.skip_binder().kind() { ty::Ref(lt, ty, Mutability::Not) => { match lt.kind() { - RegionKind::ReLateBound(index, region) + RegionKind::ReBound(index, region) if index.as_u32() == 0 && output_regions.contains(®ion) => { continue; }, // Early bound regions on functions are either from the containing item, are bounded by another // lifetime, or are used as a bound for a type or lifetime. - RegionKind::ReEarlyBound(..) => continue, + RegionKind::ReEarlyParam(..) => continue, _ => (), } diff --git a/src/tools/clippy/clippy_lints/src/ptr.rs b/src/tools/clippy/clippy_lints/src/ptr.rs index 83863b92caf..1d4b4d10d50 100644 --- a/src/tools/clippy/clippy_lints/src/ptr.rs +++ b/src/tools/clippy/clippy_lints/src/ptr.rs @@ -465,9 +465,9 @@ fn check_fn_args<'cx, 'tcx: 'cx>( .walk() .filter_map(|arg| { arg.as_region().and_then(|lifetime| match lifetime.kind() { - ty::ReEarlyBound(r) => Some(r.def_id), - ty::ReLateBound(_, r) => r.kind.get_id(), - ty::ReFree(r) => r.bound_region.get_id(), + ty::ReEarlyParam(r) => Some(r.def_id), + ty::ReBound(_, r) => r.kind.get_id(), + ty::ReLateParam(r) => r.bound_region.get_id(), ty::ReStatic | ty::ReVar(_) | ty::RePlaceholder(_) diff --git a/src/tools/clippy/clippy_utils/src/ty.rs b/src/tools/clippy/clippy_utils/src/ty.rs index 7eff93881b2..2ff979f2dcb 100644 --- a/src/tools/clippy/clippy_utils/src/ty.rs +++ b/src/tools/clippy/clippy_utils/src/ty.rs @@ -890,7 +890,7 @@ pub fn for_each_top_level_late_bound_region<B>( impl<'tcx, B, F: FnMut(BoundRegion) -> ControlFlow<B>> TypeVisitor<TyCtxt<'tcx>> for V<F> { type BreakTy = B; fn visit_region(&mut self, r: Region<'tcx>) -> ControlFlow<Self::BreakTy> { - if let RegionKind::ReLateBound(idx, bound) = r.kind() + if let RegionKind::ReBound(idx, bound) = r.kind() && idx.as_u32() == self.index { (self.f)(bound) @@ -1160,7 +1160,7 @@ pub fn make_normalized_projection<'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, arg)) = ty.args.iter().enumerate().find(|(_, arg)| arg.has_late_bound_regions()) { + if let Some((i, arg)) = ty.args.iter().enumerate().find(|(_, arg)| arg.has_bound_regions()) { debug_assert!( false, "args contain late-bound region at index `{i}` which can't be normalized.\n\ @@ -1233,7 +1233,7 @@ pub fn make_normalized_projection_with_regions<'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, arg)) = ty.args.iter().enumerate().find(|(_, arg)| arg.has_late_bound_regions()) { + if let Some((i, arg)) = ty.args.iter().enumerate().find(|(_, arg)| arg.has_bound_regions()) { debug_assert!( false, "args contain late-bound region at index `{i}` which can't be normalized.\n\ diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs index 63e8ba7c79f..8854908c430 100644 --- a/src/tools/compiletest/src/runtest.rs +++ b/src/tools/compiletest/src/runtest.rs @@ -20,12 +20,11 @@ use regex::{Captures, Regex}; use rustfix::{apply_suggestions, get_suggestions_from_json, Filter}; use std::borrow::Cow; -use std::collections::hash_map::DefaultHasher; use std::collections::{HashMap, HashSet}; use std::env; use std::ffi::{OsStr, OsString}; use std::fs::{self, create_dir_all, File, OpenOptions}; -use std::hash::{Hash, Hasher}; +use std::hash::{DefaultHasher, Hash, Hasher}; use std::io::prelude::*; use std::io::{self, BufReader}; use std::iter; diff --git a/src/tools/error_index_generator/main.rs b/src/tools/error_index_generator/main.rs index 62a58576da5..3a23ff7fe6a 100644 --- a/src/tools/error_index_generator/main.rs +++ b/src/tools/error_index_generator/main.rs @@ -1,6 +1,7 @@ #![feature(rustc_private)] extern crate rustc_driver; +extern crate rustc_log; extern crate rustc_session; use std::env; @@ -173,7 +174,7 @@ fn parse_args() -> (OutputFormat, PathBuf) { fn main() { let handler = rustc_session::EarlyErrorHandler::new(rustc_session::config::ErrorOutputType::default()); - rustc_driver::init_env_logger(&handler, "RUST_LOG"); + rustc_driver::init_logger(&handler, rustc_log::LoggerConfig::from_env("RUST_LOG")); let (format, dst) = parse_args(); let result = main_with_result(format, &dst); if let Err(e) = result { diff --git a/src/tools/miri/ci.sh b/src/tools/miri/ci.sh index 5078e9eaab3..f0917556c64 100755 --- a/src/tools/miri/ci.sh +++ b/src/tools/miri/ci.sh @@ -108,7 +108,7 @@ case $HOST_TARGET in MIRI_TEST_TARGET=aarch64-unknown-linux-gnu run_tests MIRI_TEST_TARGET=aarch64-apple-darwin run_tests MIRI_TEST_TARGET=i686-pc-windows-gnu run_tests - MIRI_TEST_TARGET=x86_64-unknown-freebsd run_tests_minimal hello integer vec panic/panic concurrency/simple atomic env/var + MIRI_TEST_TARGET=x86_64-unknown-freebsd run_tests_minimal hello integer vec panic/panic concurrency/simple pthreads atomic env/var MIRI_TEST_TARGET=aarch64-linux-android run_tests_minimal hello integer vec panic/panic MIRI_TEST_TARGET=wasm32-wasi run_tests_minimal no_std integer strings wasm MIRI_TEST_TARGET=wasm32-unknown-unknown run_tests_minimal no_std integer strings wasm diff --git a/src/tools/miri/src/bin/miri.rs b/src/tools/miri/src/bin/miri.rs index cd628444fed..7f777cd4727 100644 --- a/src/tools/miri/src/bin/miri.rs +++ b/src/tools/miri/src/bin/miri.rs @@ -9,11 +9,12 @@ extern crate rustc_data_structures; extern crate rustc_driver; extern crate rustc_hir; extern crate rustc_interface; +extern crate rustc_log; extern crate rustc_metadata; extern crate rustc_middle; extern crate rustc_session; -use std::env; +use std::env::{self, VarError}; use std::num::NonZeroU64; use std::path::PathBuf; use std::str::FromStr; @@ -183,45 +184,54 @@ macro_rules! show_error { ($($tt:tt)*) => { show_error(&format_args!($($tt)*)) }; } -fn init_early_loggers(handler: &EarlyErrorHandler) { - // Note that our `extern crate log` is *not* the same as rustc's; as a result, we have to - // initialize them both, and we always initialize `miri`'s first. - let env = env_logger::Env::new().filter("MIRI_LOG").write_style("MIRI_LOG_STYLE"); - env_logger::init_from_env(env); - // Enable verbose entry/exit logging by default if MIRI_LOG is set. - if env::var_os("MIRI_LOG").is_some() && env::var_os("RUSTC_LOG_ENTRY_EXIT").is_none() { - env::set_var("RUSTC_LOG_ENTRY_EXIT", "1"); - } - // We only initialize `rustc` if the env var is set (so the user asked for it). - // If it is not set, we avoid initializing now so that we can initialize - // later with our custom settings, and *not* log anything for what happens before - // `miri` gets started. - if env::var_os("RUSTC_LOG").is_some() { - rustc_driver::init_rustc_env_logger(handler); - } -} +fn rustc_logger_config() -> rustc_log::LoggerConfig { + // Start with the usual env vars. + let mut cfg = rustc_log::LoggerConfig::from_env("RUSTC_LOG"); -fn init_late_loggers(handler: &EarlyErrorHandler, tcx: TyCtxt<'_>) { - // We initialize loggers right before we start evaluation. We overwrite the `RUSTC_LOG` - // env var if it is not set, control it based on `MIRI_LOG`. - // (FIXME: use `var_os`, but then we need to manually concatenate instead of `format!`.) + // Overwrite if MIRI_LOG is set. if let Ok(var) = env::var("MIRI_LOG") { - if env::var_os("RUSTC_LOG").is_none() { + // MIRI_LOG serves as default for RUSTC_LOG, if that is not set. + if matches!(cfg.filter, Err(VarError::NotPresent)) { // We try to be a bit clever here: if `MIRI_LOG` is just a single level // used for everything, we only apply it to the parts of rustc that are // CTFE-related. Otherwise, we use it verbatim for `RUSTC_LOG`. // This way, if you set `MIRI_LOG=trace`, you get only the right parts of // rustc traced, but you can also do `MIRI_LOG=miri=trace,rustc_const_eval::interpret=debug`. if log::Level::from_str(&var).is_ok() { - env::set_var( - "RUSTC_LOG", - format!("rustc_middle::mir::interpret={var},rustc_const_eval::interpret={var}"), - ); + cfg.filter = Ok(format!( + "rustc_middle::mir::interpret={var},rustc_const_eval::interpret={var}" + )); } else { - env::set_var("RUSTC_LOG", &var); + cfg.filter = Ok(var); } - rustc_driver::init_rustc_env_logger(handler); } + // Enable verbose entry/exit logging by default if MIRI_LOG is set. + if matches!(cfg.verbose_entry_exit, Err(VarError::NotPresent)) { + cfg.verbose_entry_exit = Ok(format!("1")); + } + } + + cfg +} + +fn init_early_loggers(handler: &EarlyErrorHandler) { + // Note that our `extern crate log` is *not* the same as rustc's; as a result, we have to + // initialize them both, and we always initialize `miri`'s first. + let env = env_logger::Env::new().filter("MIRI_LOG").write_style("MIRI_LOG_STYLE"); + env_logger::init_from_env(env); + // Now for rustc. We only initialize `rustc` if the env var is set (so the user asked for it). + // If it is not set, we avoid initializing now so that we can initialize later with our custom + // settings, and *not* log anything for what happens before `miri` gets started. + if env::var_os("RUSTC_LOG").is_some() { + rustc_driver::init_logger(handler, rustc_logger_config()); + } +} + +fn init_late_loggers(handler: &EarlyErrorHandler, tcx: TyCtxt<'_>) { + // If `RUSTC_LOG` is not set, then `init_early_loggers` did not call + // `rustc_driver::init_logger`, so we have to do this now. + if env::var_os("RUSTC_LOG").is_none() { + rustc_driver::init_logger(handler, rustc_logger_config()); } // If `MIRI_BACKTRACE` is set and `RUSTC_CTFE_BACKTRACE` is not, set `RUSTC_CTFE_BACKTRACE`. diff --git a/src/tools/miri/src/concurrency/thread.rs b/src/tools/miri/src/concurrency/thread.rs index 9041683fbc4..6449ed29cf8 100644 --- a/src/tools/miri/src/concurrency/thread.rs +++ b/src/tools/miri/src/concurrency/thread.rs @@ -33,6 +33,15 @@ enum SchedulingAction { Sleep(Duration), } +/// What to do with TLS allocations from terminated threads +pub enum TlsAllocAction { + /// Deallocate backing memory of thread-local statics as usual + Deallocate, + /// Skip deallocating backing memory of thread-local statics and consider all memory reachable + /// from them as "allowed to leak" (like global `static`s). + Leak, +} + /// Trait for callbacks that can be executed when some event happens, such as after a timeout. pub trait MachineCallback<'mir, 'tcx>: VisitTags { fn call(&self, ecx: &mut InterpCx<'mir, 'tcx, MiriMachine<'mir, 'tcx>>) -> InterpResult<'tcx>; @@ -1051,7 +1060,8 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { // See if this thread can do something else. match this.run_on_stack_empty()? { Poll::Pending => {} // keep going - Poll::Ready(()) => this.terminate_active_thread()?, + Poll::Ready(()) => + this.terminate_active_thread(TlsAllocAction::Deallocate)?, } } } @@ -1066,21 +1076,29 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { } /// Handles thread termination of the active thread: wakes up threads joining on this one, - /// and deallocated thread-local statics. + /// and deals with the thread's thread-local statics according to `tls_alloc_action`. /// /// This is called by the eval loop when a thread's on_stack_empty returns `Ready`. #[inline] - fn terminate_active_thread(&mut self) -> InterpResult<'tcx> { + fn terminate_active_thread(&mut self, tls_alloc_action: TlsAllocAction) -> InterpResult<'tcx> { let this = self.eval_context_mut(); let thread = this.active_thread_mut(); assert!(thread.stack.is_empty(), "only threads with an empty stack can be terminated"); thread.state = ThreadState::Terminated; let current_span = this.machine.current_span(); - for ptr in - this.machine.threads.thread_terminated(this.machine.data_race.as_mut(), current_span) - { - this.deallocate_ptr(ptr.into(), None, MiriMemoryKind::Tls.into())?; + let thread_local_allocations = + this.machine.threads.thread_terminated(this.machine.data_race.as_mut(), current_span); + for ptr in thread_local_allocations { + match tls_alloc_action { + TlsAllocAction::Deallocate => + this.deallocate_ptr(ptr.into(), None, MiriMemoryKind::Tls.into())?, + TlsAllocAction::Leak => + if let Some(alloc) = ptr.provenance.get_alloc_id() { + trace!("Thread-local static leaked and stored as static root: {:?}", alloc); + this.machine.static_roots.push(alloc); + }, + } } Ok(()) } diff --git a/src/tools/miri/src/diagnostics.rs b/src/tools/miri/src/diagnostics.rs index fe445c6dcd9..c2ef7710011 100644 --- a/src/tools/miri/src/diagnostics.rs +++ b/src/tools/miri/src/diagnostics.rs @@ -270,7 +270,8 @@ pub fn report_error<'tcx, 'mir>( DataRace { op1, extra, .. } => { let mut helps = vec![(Some(op1.span), format!("and (1) occurred earlier here"))]; if let Some(extra) = extra { - helps.push((None, format!("{extra}"))) + helps.push((None, format!("{extra}"))); + helps.push((None, format!("see https://doc.rust-lang.org/nightly/std/sync/atomic/index.html#memory-model-for-atomic-accesses for more information about the Rust memory model"))); } helps.push((None, format!("this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior"))); helps.push((None, format!("see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information"))); diff --git a/src/tools/miri/src/eval.rs b/src/tools/miri/src/eval.rs index 5b785c0143e..1345b22a34a 100644 --- a/src/tools/miri/src/eval.rs +++ b/src/tools/miri/src/eval.rs @@ -11,6 +11,7 @@ use log::info; use rustc_middle::ty::Ty; use crate::borrow_tracker::RetagFields; +use crate::concurrency::thread::TlsAllocAction; use crate::diagnostics::report_leaks; use rustc_data_structures::fx::FxHashSet; use rustc_hir::def::Namespace; @@ -244,9 +245,9 @@ impl MainThreadState { // Figure out exit code. let ret_place = this.machine.main_fn_ret_place.clone().unwrap(); let exit_code = this.read_target_isize(&ret_place)?; - // Need to call this ourselves since we are not going to return to the scheduler - // loop, and we want the main thread TLS to not show up as memory leaks. - this.terminate_active_thread()?; + // Deal with our thread-local memory. We do *not* want to actually free it, instead we consider TLS + // to be like a global `static`, so that all memory reached by it is considered to "not leak". + this.terminate_active_thread(TlsAllocAction::Leak)?; // Stop interpreter loop. throw_machine_stop!(TerminationInfo::Exit { code: exit_code, leak_check: true }); } diff --git a/src/tools/miri/src/shims/unix/freebsd/foreign_items.rs b/src/tools/miri/src/shims/unix/freebsd/foreign_items.rs index 869434e8876..96e322c4cf5 100644 --- a/src/tools/miri/src/shims/unix/freebsd/foreign_items.rs +++ b/src/tools/miri/src/shims/unix/freebsd/foreign_items.rs @@ -29,13 +29,23 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { "pthread_set_name_np" => { let [thread, name] = this.check_shim(abi, Abi::C { unwind: false }, link_name, args)?; - let max_len = usize::MAX; // freebsd does not seem to have a limit. - let res = this.pthread_setname_np( + let max_len = usize::MAX; // FreeBSD does not seem to have a limit. + // FreeBSD's pthread_set_name_np does not return anything. + this.pthread_setname_np( this.read_scalar(thread)?, this.read_scalar(name)?, max_len, )?; - this.write_scalar(res, dest)?; + } + "pthread_get_name_np" => { + let [thread, name, len] = + this.check_shim(abi, Abi::C { unwind: false }, link_name, args)?; + // FreeBSD's pthread_get_name_np does not return anything. + this.pthread_getname_np( + this.read_scalar(thread)?, + this.read_scalar(name)?, + this.read_scalar(len)?, + )?; } // errno diff --git a/src/tools/miri/src/shims/unix/sync.rs b/src/tools/miri/src/shims/unix/sync.rs index 6666ffbd1d5..1a91219e016 100644 --- a/src/tools/miri/src/shims/unix/sync.rs +++ b/src/tools/miri/src/shims/unix/sync.rs @@ -277,6 +277,13 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { ) -> InterpResult<'tcx, i32> { let this = self.eval_context_mut(); + if !matches!(&*this.tcx.sess.target.os, "linux" | "macos") { + throw_unsup_format!( + "`pthread_mutexattr_init` is not supported on {}", + this.tcx.sess.target.os + ); + } + let default_kind = this.eval_libc_i32("PTHREAD_MUTEX_DEFAULT"); mutexattr_set_kind(this, attr_op, default_kind)?; @@ -359,6 +366,13 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { ) -> InterpResult<'tcx, i32> { let this = self.eval_context_mut(); + if !matches!(&*this.tcx.sess.target.os, "linux" | "macos") { + throw_unsup_format!( + "`pthread_mutex_init` is not supported on {}", + this.tcx.sess.target.os + ); + } + let attr = this.read_pointer(attr_op)?; let kind = if this.ptr_is_null(attr)? { this.eval_libc_i32("PTHREAD_MUTEX_DEFAULT") @@ -513,6 +527,13 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { ) -> InterpResult<'tcx, i32> { let this = self.eval_context_mut(); + if !matches!(&*this.tcx.sess.target.os, "linux" | "macos") { + throw_unsup_format!( + "`pthread_rwlock_rdlock` is not supported on {}", + this.tcx.sess.target.os + ); + } + let id = rwlock_get_id(this, rwlock_op)?; let active_thread = this.get_active_thread(); @@ -531,6 +552,13 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { ) -> InterpResult<'tcx, i32> { let this = self.eval_context_mut(); + if !matches!(&*this.tcx.sess.target.os, "linux" | "macos") { + throw_unsup_format!( + "`pthread_rwlock_tryrdlock` is not supported on {}", + this.tcx.sess.target.os + ); + } + let id = rwlock_get_id(this, rwlock_op)?; let active_thread = this.get_active_thread(); @@ -548,6 +576,13 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { ) -> InterpResult<'tcx, i32> { let this = self.eval_context_mut(); + if !matches!(&*this.tcx.sess.target.os, "linux" | "macos") { + throw_unsup_format!( + "`pthread_rwlock_wrlock` is not supported on {}", + this.tcx.sess.target.os + ); + } + let id = rwlock_get_id(this, rwlock_op)?; let active_thread = this.get_active_thread(); @@ -578,6 +613,13 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { ) -> InterpResult<'tcx, i32> { let this = self.eval_context_mut(); + if !matches!(&*this.tcx.sess.target.os, "linux" | "macos") { + throw_unsup_format!( + "`pthread_rwlock_trywrlock` is not supported on {}", + this.tcx.sess.target.os + ); + } + let id = rwlock_get_id(this, rwlock_op)?; let active_thread = this.get_active_thread(); @@ -595,6 +637,13 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { ) -> InterpResult<'tcx, i32> { let this = self.eval_context_mut(); + if !matches!(&*this.tcx.sess.target.os, "linux" | "macos") { + throw_unsup_format!( + "`pthread_rwlock_unlock` is not supported on {}", + this.tcx.sess.target.os + ); + } + let id = rwlock_get_id(this, rwlock_op)?; let active_thread = this.get_active_thread(); @@ -614,6 +663,13 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { ) -> InterpResult<'tcx, i32> { let this = self.eval_context_mut(); + if !matches!(&*this.tcx.sess.target.os, "linux" | "macos") { + throw_unsup_format!( + "`pthread_rwlock_destroy` is not supported on {}", + this.tcx.sess.target.os + ); + } + let id = rwlock_get_id(this, rwlock_op)?; if this.rwlock_is_locked(id) { @@ -638,6 +694,13 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { ) -> InterpResult<'tcx, i32> { let this = self.eval_context_mut(); + if !matches!(&*this.tcx.sess.target.os, "linux" | "macos") { + throw_unsup_format!( + "`pthread_condattr_init` is not supported on {}", + this.tcx.sess.target.os + ); + } + // The default value of the clock attribute shall refer to the system // clock. // https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_condattr_setclock.html @@ -704,6 +767,13 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriInterpCxExt<'mir, 'tcx> { ) -> InterpResult<'tcx, i32> { let this = self.eval_context_mut(); + if !matches!(&*this.tcx.sess.target.os, "linux" | "macos") { + throw_unsup_format!( + "`pthread_cond_init` is not supported on {}", + this.tcx.sess.target.os + ); + } + let attr = this.read_pointer(attr_op)?; let clock_id = if this.ptr_is_null(attr)? { this.eval_libc_i32("CLOCK_REALTIME") diff --git a/src/tools/miri/src/shims/x86/sse41.rs b/src/tools/miri/src/shims/x86/sse41.rs index cfa06ded6e6..523f3bfc26f 100644 --- a/src/tools/miri/src/shims/x86/sse41.rs +++ b/src/tools/miri/src/shims/x86/sse41.rs @@ -148,6 +148,14 @@ pub(super) trait EvalContextExt<'mir, 'tcx: 'mir>: round_first::<rustc_apfloat::ieee::Single>(this, left, right, rounding, dest)?; } + // Used to implement the _mm_floor_ps, _mm_ceil_ps and _mm_round_ps + // functions. Rounds the elements of `op` according to `rounding`. + "round.ps" => { + let [op, rounding] = + this.check_shim(abi, Abi::C { unwind: false }, link_name, args)?; + + round_all::<rustc_apfloat::ieee::Single>(this, op, rounding, dest)?; + } // Used to implement the _mm_floor_sd, _mm_ceil_sd and _mm_round_sd // functions. Rounds the first element of `right` according to `rounding` // and copies the remaining elements from `left`. @@ -157,6 +165,14 @@ pub(super) trait EvalContextExt<'mir, 'tcx: 'mir>: round_first::<rustc_apfloat::ieee::Double>(this, left, right, rounding, dest)?; } + // Used to implement the _mm_floor_pd, _mm_ceil_pd and _mm_round_pd + // functions. Rounds the elements of `op` according to `rounding`. + "round.pd" => { + let [op, rounding] = + this.check_shim(abi, Abi::C { unwind: false }, link_name, args)?; + + round_all::<rustc_apfloat::ieee::Double>(this, op, rounding, dest)?; + } // Used to implement the _mm_minpos_epu16 function. // Find the minimum unsinged 16-bit integer in `op` and // returns its value and position. @@ -283,22 +299,7 @@ fn round_first<'tcx, F: rustc_apfloat::Float>( assert_eq!(dest_len, left_len); assert_eq!(dest_len, right_len); - // The fourth bit of `rounding` only affects the SSE status - // register, which cannot be accessed from Miri (or from Rust, - // for that matter), so we can ignore it. - let rounding = match this.read_scalar(rounding)?.to_i32()? & !0b1000 { - // When the third bit is 0, the rounding mode is determined by the - // first two bits. - 0b000 => rustc_apfloat::Round::NearestTiesToEven, - 0b001 => rustc_apfloat::Round::TowardNegative, - 0b010 => rustc_apfloat::Round::TowardPositive, - 0b011 => rustc_apfloat::Round::TowardZero, - // When the third bit is 1, the rounding mode is determined by the - // SSE status register. Since we do not support modifying it from - // Miri (or Rust), we assume it to be at its default mode (round-to-nearest). - 0b100..=0b111 => rustc_apfloat::Round::NearestTiesToEven, - rounding => throw_unsup_format!("unsupported rounding mode 0x{rounding:02x}"), - }; + let rounding = rounding_from_imm(this.read_scalar(rounding)?.to_i32()?)?; let op0: F = this.read_scalar(&this.project_index(&right, 0)?)?.to_float()?; let res = op0.round_to_integral(rounding).value; @@ -317,3 +318,50 @@ fn round_first<'tcx, F: rustc_apfloat::Float>( Ok(()) } + +// Rounds all elements of `op` according to `rounding`. +fn round_all<'tcx, F: rustc_apfloat::Float>( + this: &mut crate::MiriInterpCx<'_, 'tcx>, + op: &OpTy<'tcx, Provenance>, + rounding: &OpTy<'tcx, Provenance>, + dest: &PlaceTy<'tcx, Provenance>, +) -> InterpResult<'tcx, ()> { + let (op, op_len) = this.operand_to_simd(op)?; + let (dest, dest_len) = this.place_to_simd(dest)?; + + assert_eq!(dest_len, op_len); + + let rounding = rounding_from_imm(this.read_scalar(rounding)?.to_i32()?)?; + + for i in 0..dest_len { + let op: F = this.read_scalar(&this.project_index(&op, i)?)?.to_float()?; + let res = op.round_to_integral(rounding).value; + this.write_scalar( + Scalar::from_uint(res.to_bits(), Size::from_bits(F::BITS)), + &this.project_index(&dest, i)?, + )?; + } + + Ok(()) +} + +/// Gets equivalent `rustc_apfloat::Round` from rounding mode immediate of +/// `round.{ss,sd,ps,pd}` intrinsics. +fn rounding_from_imm<'tcx>(rounding: i32) -> InterpResult<'tcx, rustc_apfloat::Round> { + // The fourth bit of `rounding` only affects the SSE status + // register, which cannot be accessed from Miri (or from Rust, + // for that matter), so we can ignore it. + match rounding & !0b1000 { + // When the third bit is 0, the rounding mode is determined by the + // first two bits. + 0b000 => Ok(rustc_apfloat::Round::NearestTiesToEven), + 0b001 => Ok(rustc_apfloat::Round::TowardNegative), + 0b010 => Ok(rustc_apfloat::Round::TowardPositive), + 0b011 => Ok(rustc_apfloat::Round::TowardZero), + // When the third bit is 1, the rounding mode is determined by the + // SSE status register. Since we do not support modifying it from + // Miri (or Rust), we assume it to be at its default mode (round-to-nearest). + 0b100..=0b111 => Ok(rustc_apfloat::Round::NearestTiesToEven), + rounding => throw_unsup_format!("unsupported rounding mode 0x{rounding:02x}"), + } +} diff --git a/src/tools/miri/tests/fail/data_race/mixed_size_read.stderr b/src/tools/miri/tests/fail/data_race/mixed_size_read.stderr index cb7dc89359a..8988655208a 100644 --- a/src/tools/miri/tests/fail/data_race/mixed_size_read.stderr +++ b/src/tools/miri/tests/fail/data_race/mixed_size_read.stderr @@ -10,6 +10,7 @@ help: and (1) occurred earlier here LL | a16.load(Ordering::SeqCst); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ = help: overlapping unsynchronized atomic accesses must use the same access size + = help: see https://doc.rust-lang.org/nightly/std/sync/atomic/index.html#memory-model-for-atomic-accesses for more information about the Rust memory model = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information = note: BACKTRACE (of the first span): diff --git a/src/tools/miri/tests/fail/data_race/mixed_size_write.stderr b/src/tools/miri/tests/fail/data_race/mixed_size_write.stderr index b3908e9c6bf..55c9011f1b4 100644 --- a/src/tools/miri/tests/fail/data_race/mixed_size_write.stderr +++ b/src/tools/miri/tests/fail/data_race/mixed_size_write.stderr @@ -10,6 +10,7 @@ help: and (1) occurred earlier here LL | a16.store(1, Ordering::SeqCst); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = help: overlapping unsynchronized atomic accesses must use the same access size + = help: see https://doc.rust-lang.org/nightly/std/sync/atomic/index.html#memory-model-for-atomic-accesses for more information about the Rust memory model = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information = note: BACKTRACE (of the first span): diff --git a/src/tools/miri/tests/fail/data_race/read_read_race1.stderr b/src/tools/miri/tests/fail/data_race/read_read_race1.stderr index 0846a88f362..e1009472fee 100644 --- a/src/tools/miri/tests/fail/data_race/read_read_race1.stderr +++ b/src/tools/miri/tests/fail/data_race/read_read_race1.stderr @@ -10,6 +10,7 @@ help: and (1) occurred earlier here LL | unsafe { ptr.read() }; | ^^^^^^^^^^ = help: overlapping atomic and non-atomic accesses must be synchronized, even if both are read-only + = help: see https://doc.rust-lang.org/nightly/std/sync/atomic/index.html#memory-model-for-atomic-accesses for more information about the Rust memory model = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information = note: BACKTRACE (of the first span): diff --git a/src/tools/miri/tests/fail/data_race/read_read_race2.stderr b/src/tools/miri/tests/fail/data_race/read_read_race2.stderr index c6181cc45b2..22017ae633d 100644 --- a/src/tools/miri/tests/fail/data_race/read_read_race2.stderr +++ b/src/tools/miri/tests/fail/data_race/read_read_race2.stderr @@ -10,6 +10,7 @@ help: and (1) occurred earlier here LL | a.load(Ordering::SeqCst); | ^^^^^^^^^^^^^^^^^^^^^^^^ = help: overlapping atomic and non-atomic accesses must be synchronized, even if both are read-only + = help: see https://doc.rust-lang.org/nightly/std/sync/atomic/index.html#memory-model-for-atomic-accesses for more information about the Rust memory model = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information = note: BACKTRACE (of the first span): diff --git a/src/tools/miri/tests/fail/function_calls/arg_inplace_mutate.rs b/src/tools/miri/tests/fail/function_calls/arg_inplace_mutate.rs index d47af50d407..e79bd70e915 100644 --- a/src/tools/miri/tests/fail/function_calls/arg_inplace_mutate.rs +++ b/src/tools/miri/tests/fail/function_calls/arg_inplace_mutate.rs @@ -14,7 +14,7 @@ fn main() { let ptr = std::ptr::addr_of_mut!(non_copy); // Inside `callee`, the first argument and `*ptr` are basically // aliasing places! - Call(_unit = callee(Move(*ptr), ptr), after_call) + Call(_unit = callee(Move(*ptr), ptr), after_call, UnwindContinue()) } after_call = { Return() diff --git a/src/tools/miri/tests/fail/function_calls/arg_inplace_mutate.stack.stderr b/src/tools/miri/tests/fail/function_calls/arg_inplace_mutate.stack.stderr index 381442e69b1..ccf9732ed07 100644 --- a/src/tools/miri/tests/fail/function_calls/arg_inplace_mutate.stack.stderr +++ b/src/tools/miri/tests/fail/function_calls/arg_inplace_mutate.stack.stderr @@ -27,8 +27,8 @@ LL | unsafe { ptr.write(S(0)) }; note: inside `main` --> $DIR/arg_inplace_mutate.rs:LL:CC | -LL | Call(_unit = callee(Move(*ptr), ptr), after_call) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | Call(_unit = callee(Move(*ptr), ptr), after_call, UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `::core::intrinsics::mir::__internal_remove_let` which comes from the expansion of the macro `mir` (in Nightly builds, run with -Z macro-backtrace for more info) note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/function_calls/arg_inplace_mutate.tree.stderr b/src/tools/miri/tests/fail/function_calls/arg_inplace_mutate.tree.stderr index 3d8ba68547b..e7baf6e23db 100644 --- a/src/tools/miri/tests/fail/function_calls/arg_inplace_mutate.tree.stderr +++ b/src/tools/miri/tests/fail/function_calls/arg_inplace_mutate.tree.stderr @@ -35,8 +35,8 @@ LL | unsafe { ptr.write(S(0)) }; note: inside `main` --> $DIR/arg_inplace_mutate.rs:LL:CC | -LL | Call(_unit = callee(Move(*ptr), ptr), after_call) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | Call(_unit = callee(Move(*ptr), ptr), after_call, UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `::core::intrinsics::mir::__internal_remove_let` which comes from the expansion of the macro `mir` (in Nightly builds, run with -Z macro-backtrace for more info) note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_after.rs b/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_after.rs index ea773048dd4..e4c00fdd845 100644 --- a/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_after.rs +++ b/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_after.rs @@ -11,7 +11,7 @@ fn main() { { let non_copy = S(42); // This could change `non_copy` in-place - Call(_unit = change_arg(Move(non_copy)), after_call) + Call(_unit = change_arg(Move(non_copy)), after_call, UnwindContinue()) } after_call = { // So now we must not be allowed to observe non-copy again. diff --git a/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.none.stderr b/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.none.stderr index cba23c21d12..f8140d0236a 100644 --- a/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.none.stderr +++ b/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.none.stderr @@ -11,8 +11,8 @@ LL | unsafe { ptr.read() }; note: inside `main` --> $DIR/arg_inplace_observe_during.rs:LL:CC | -LL | Call(_unit = change_arg(Move(*ptr), ptr), after_call) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | Call(_unit = change_arg(Move(*ptr), ptr), after_call, UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.rs b/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.rs index 8c6a7df7a6d..517abd733a9 100644 --- a/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.rs +++ b/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.rs @@ -14,7 +14,7 @@ fn main() { let non_copy = S(42); let ptr = std::ptr::addr_of_mut!(non_copy); // This could change `non_copy` in-place - Call(_unit = change_arg(Move(*ptr), ptr), after_call) + Call(_unit = change_arg(Move(*ptr), ptr), after_call, UnwindContinue()) } after_call = { Return() diff --git a/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.stack.stderr b/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.stack.stderr index f8532186be2..c37e788e6b4 100644 --- a/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.stack.stderr +++ b/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.stack.stderr @@ -27,8 +27,8 @@ LL | x.0 = 0; note: inside `main` --> $DIR/arg_inplace_observe_during.rs:LL:CC | -LL | Call(_unit = change_arg(Move(*ptr), ptr), after_call) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | Call(_unit = change_arg(Move(*ptr), ptr), after_call, UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `::core::intrinsics::mir::__internal_remove_let` which comes from the expansion of the macro `mir` (in Nightly builds, run with -Z macro-backtrace for more info) note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.tree.stderr b/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.tree.stderr index 7b1846a32db..7557d3710d1 100644 --- a/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.tree.stderr +++ b/src/tools/miri/tests/fail/function_calls/arg_inplace_observe_during.tree.stderr @@ -35,8 +35,8 @@ LL | x.0 = 0; note: inside `main` --> $DIR/arg_inplace_observe_during.rs:LL:CC | -LL | Call(_unit = change_arg(Move(*ptr), ptr), after_call) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | Call(_unit = change_arg(Move(*ptr), ptr), after_call, UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `::core::intrinsics::mir::__internal_remove_let` which comes from the expansion of the macro `mir` (in Nightly builds, run with -Z macro-backtrace for more info) note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing.none.stderr b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing.none.stderr index 0a31adabf73..dd951066c32 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing.none.stderr +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing.none.stderr @@ -11,8 +11,8 @@ LL | unsafe { ptr.read() }; note: inside `main` --> $DIR/return_pointer_aliasing.rs:LL:CC | -LL | Call(*ptr = myfun(ptr), after_call) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | Call(*ptr = myfun(ptr), after_call, UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing.rs b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing.rs index 3d560af3d5e..23b1e38b99f 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing.rs +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing.rs @@ -15,7 +15,7 @@ pub fn main() { let ptr = &raw mut x; // We arrange for `myfun` to have a pointer that aliases // its return place. Even just reading from that pointer is UB. - Call(*ptr = myfun(ptr), after_call) + Call(*ptr = myfun(ptr), after_call, UnwindContinue()) } after_call = { diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing.stack.stderr b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing.stack.stderr index 875cc5edad9..cf13be6da01 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing.stack.stderr +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing.stack.stderr @@ -27,8 +27,8 @@ LL | unsafe { ptr.read() }; note: inside `main` --> $DIR/return_pointer_aliasing.rs:LL:CC | -LL | Call(*ptr = myfun(ptr), after_call) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | Call(*ptr = myfun(ptr), after_call, UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `::core::intrinsics::mir::__internal_remove_let` which comes from the expansion of the macro `mir` (in Nightly builds, run with -Z macro-backtrace for more info) note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing.tree.stderr b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing.tree.stderr index deafbf02077..e16c4c0ebb6 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing.tree.stderr +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing.tree.stderr @@ -35,8 +35,8 @@ LL | unsafe { ptr.read() }; note: inside `main` --> $DIR/return_pointer_aliasing.rs:LL:CC | -LL | Call(*ptr = myfun(ptr), after_call) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | Call(*ptr = myfun(ptr), after_call, UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `::core::intrinsics::mir::__internal_remove_let` which comes from the expansion of the macro `mir` (in Nightly builds, run with -Z macro-backtrace for more info) note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing2.rs b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing2.rs index c1bbc748e1a..56706cdb63b 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing2.rs +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing2.rs @@ -15,7 +15,7 @@ pub fn main() { let ptr = &raw mut _x; // We arrange for `myfun` to have a pointer that aliases // its return place. Even just reading from that pointer is UB. - Call(_x = myfun(ptr), after_call) + Call(_x = myfun(ptr), after_call, UnwindContinue()) } after_call = { diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing2.stack.stderr b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing2.stack.stderr index 0666db34fec..5d76d9eab67 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing2.stack.stderr +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing2.stack.stderr @@ -30,8 +30,8 @@ LL | unsafe { ptr.write(0) }; note: inside `main` --> $DIR/return_pointer_aliasing2.rs:LL:CC | -LL | Call(_x = myfun(ptr), after_call) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | Call(_x = myfun(ptr), after_call, UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `::core::intrinsics::mir::__internal_remove_let` which comes from the expansion of the macro `mir` (in Nightly builds, run with -Z macro-backtrace for more info) note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing2.tree.stderr b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing2.tree.stderr index e1b40a6bc18..e8165a73ff4 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing2.tree.stderr +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_aliasing2.tree.stderr @@ -35,8 +35,8 @@ LL | unsafe { ptr.write(0) }; note: inside `main` --> $DIR/return_pointer_aliasing2.rs:LL:CC | -LL | Call(_x = myfun(ptr), after_call) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | Call(_x = myfun(ptr), after_call, UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ = note: this error originates in the macro `::core::intrinsics::mir::__internal_remove_let` which comes from the expansion of the macro `mir` (in Nightly builds, run with -Z macro-backtrace for more info) note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/function_calls/return_pointer_on_unwind.rs b/src/tools/miri/tests/fail/function_calls/return_pointer_on_unwind.rs index 79e29b79d6a..923c59e7429 100644 --- a/src/tools/miri/tests/fail/function_calls/return_pointer_on_unwind.rs +++ b/src/tools/miri/tests/fail/function_calls/return_pointer_on_unwind.rs @@ -14,7 +14,7 @@ struct S(i32, [u8; 128]); fn docall(out: &mut S) { mir! { { - Call(*out = callee(), after_call) + Call(*out = callee(), after_call, UnwindContinue()) } after_call = { @@ -37,7 +37,7 @@ fn callee() -> S { // become visible to the outside. In codegen we can see them // but Miri should detect this as UB! RET.0 = 42; - Call(_unit = startpanic(), after_call) + Call(_unit = startpanic(), after_call, UnwindContinue()) } after_call = { diff --git a/src/tools/miri/tests/fail/panic/thread_local_const_drop_panic.rs b/src/tools/miri/tests/fail/panic/tls_macro_const_drop_panic.rs index 93ad42ea1cc..93ad42ea1cc 100644 --- a/src/tools/miri/tests/fail/panic/thread_local_const_drop_panic.rs +++ b/src/tools/miri/tests/fail/panic/tls_macro_const_drop_panic.rs diff --git a/src/tools/miri/tests/fail/panic/thread_local_const_drop_panic.stderr b/src/tools/miri/tests/fail/panic/tls_macro_const_drop_panic.stderr index 550d009607d..17e92fec6fd 100644 --- a/src/tools/miri/tests/fail/panic/thread_local_const_drop_panic.stderr +++ b/src/tools/miri/tests/fail/panic/tls_macro_const_drop_panic.stderr @@ -1,4 +1,4 @@ -thread $NAME panicked at $DIR/thread_local_const_drop_panic.rs:LL:CC: +thread $NAME panicked at $DIR/tls_macro_const_drop_panic.rs:LL:CC: ow fatal runtime error: thread local panicked on drop error: abnormal termination: the program aborted execution diff --git a/src/tools/miri/tests/fail/panic/thread_local_drop_panic.rs b/src/tools/miri/tests/fail/panic/tls_macro_drop_panic.rs index 107d70a3b3c..107d70a3b3c 100644 --- a/src/tools/miri/tests/fail/panic/thread_local_drop_panic.rs +++ b/src/tools/miri/tests/fail/panic/tls_macro_drop_panic.rs diff --git a/src/tools/miri/tests/fail/panic/thread_local_drop_panic.stderr b/src/tools/miri/tests/fail/panic/tls_macro_drop_panic.stderr index 3d6c41faabc..b1a384bbb52 100644 --- a/src/tools/miri/tests/fail/panic/thread_local_drop_panic.stderr +++ b/src/tools/miri/tests/fail/panic/tls_macro_drop_panic.stderr @@ -1,4 +1,4 @@ -thread $NAME panicked at $DIR/thread_local_drop_panic.rs:LL:CC: +thread $NAME panicked at $DIR/tls_macro_drop_panic.rs:LL:CC: ow fatal runtime error: thread local panicked on drop error: abnormal termination: the program aborted execution diff --git a/src/tools/miri/tests/fail/concurrency/thread_local_static_dealloc.rs b/src/tools/miri/tests/fail/tls/tls_static_dealloc.rs index d5e6d37226a..d5e6d37226a 100644 --- a/src/tools/miri/tests/fail/concurrency/thread_local_static_dealloc.rs +++ b/src/tools/miri/tests/fail/tls/tls_static_dealloc.rs diff --git a/src/tools/miri/tests/fail/concurrency/thread_local_static_dealloc.stderr b/src/tools/miri/tests/fail/tls/tls_static_dealloc.stderr index 7069e8cccfe..ae8a421ca40 100644 --- a/src/tools/miri/tests/fail/concurrency/thread_local_static_dealloc.stderr +++ b/src/tools/miri/tests/fail/tls/tls_static_dealloc.stderr @@ -1,5 +1,5 @@ error: Undefined Behavior: memory access failed: ALLOC has been freed, so this pointer is dangling - --> $DIR/thread_local_static_dealloc.rs:LL:CC + --> $DIR/tls_static_dealloc.rs:LL:CC | LL | let _val = *dangling_ptr.0; | ^^^^^^^^^^^^^^^ memory access failed: ALLOC has been freed, so this pointer is dangling @@ -7,7 +7,7 @@ LL | let _val = *dangling_ptr.0; = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information = note: BACKTRACE: - = note: inside `main` at $DIR/thread_local_static_dealloc.rs:LL:CC + = note: inside `main` at $DIR/tls_static_dealloc.rs:LL:CC note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace diff --git a/src/tools/miri/tests/fail/tls_macro_leak.rs b/src/tools/miri/tests/fail/tls_macro_leak.rs new file mode 100644 index 00000000000..996d7ed4a23 --- /dev/null +++ b/src/tools/miri/tests/fail/tls_macro_leak.rs @@ -0,0 +1,21 @@ +//@error-in-other-file: memory leaked +//@normalize-stderr-test: ".*│.*" -> "$$stripped$$" + +use std::cell::Cell; + +pub fn main() { + thread_local! { + static TLS: Cell<Option<&'static i32>> = Cell::new(None); + } + + std::thread::spawn(|| { + TLS.with(|cell| { + cell.set(Some(Box::leak(Box::new(123)))); + }); + }) + .join() + .unwrap(); + + // Imagine the program running for a long time while the thread is gone + // and this memory still sits around, unused -- leaked. +} diff --git a/src/tools/miri/tests/fail/tls_macro_leak.stderr b/src/tools/miri/tests/fail/tls_macro_leak.stderr new file mode 100644 index 00000000000..e9daa78543c --- /dev/null +++ b/src/tools/miri/tests/fail/tls_macro_leak.stderr @@ -0,0 +1,32 @@ +error: memory leaked: ALLOC (Rust heap, size: 4, align: 4), allocated here: + --> RUSTLIB/alloc/src/alloc.rs:LL:CC + | +LL | __rust_alloc(layout.size(), layout.align()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: inside `std::alloc::alloc` at RUSTLIB/alloc/src/alloc.rs:LL:CC + = note: inside `std::alloc::Global::alloc_impl` at RUSTLIB/alloc/src/alloc.rs:LL:CC + = note: inside `<std::alloc::Global as std::alloc::Allocator>::allocate` at RUSTLIB/alloc/src/alloc.rs:LL:CC + = note: inside `alloc::alloc::exchange_malloc` at RUSTLIB/alloc/src/alloc.rs:LL:CC + = note: inside `std::boxed::Box::<i32>::new` at RUSTLIB/alloc/src/boxed.rs:LL:CC +note: inside closure + --> $DIR/tls_macro_leak.rs:LL:CC + | +LL | cell.set(Some(Box::leak(Box::new(123)))); + | ^^^^^^^^^^^^^ + = note: inside `std::thread::LocalKey::<std::cell::Cell<std::option::Option<&i32>>>::try_with::<{closure@$DIR/tls_macro_leak.rs:LL:CC}, ()>` at RUSTLIB/std/src/thread/local.rs:LL:CC + = note: inside `std::thread::LocalKey::<std::cell::Cell<std::option::Option<&i32>>>::with::<{closure@$DIR/tls_macro_leak.rs:LL:CC}, ()>` at RUSTLIB/std/src/thread/local.rs:LL:CC +note: inside closure + --> $DIR/tls_macro_leak.rs:LL:CC + | +LL | / TLS.with(|cell| { +LL | | cell.set(Some(Box::leak(Box::new(123)))); +LL | | }); + | |__________^ + +note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace + +note: the evaluated program leaked memory, pass `-Zmiri-ignore-leaks` to disable this check + +error: aborting due to previous error + diff --git a/src/tools/miri/tests/fail/tls_static_leak.rs b/src/tools/miri/tests/fail/tls_static_leak.rs new file mode 100644 index 00000000000..637d648fb3f --- /dev/null +++ b/src/tools/miri/tests/fail/tls_static_leak.rs @@ -0,0 +1,22 @@ +//@error-in-other-file: memory leaked +//@normalize-stderr-test: ".*│.*" -> "$$stripped$$" + +#![feature(thread_local)] + +use std::cell::Cell; + +/// Ensure that leaks through `thread_local` statics *not in the main thread* +/// are detected. +pub fn main() { + #[thread_local] + static TLS: Cell<Option<&'static i32>> = Cell::new(None); + + std::thread::spawn(|| { + TLS.set(Some(Box::leak(Box::new(123)))); + }) + .join() + .unwrap(); + + // Imagine the program running for a long time while the thread is gone + // and this memory still sits around, unused -- leaked. +} diff --git a/src/tools/miri/tests/fail/tls_static_leak.stderr b/src/tools/miri/tests/fail/tls_static_leak.stderr new file mode 100644 index 00000000000..bcfaf80229a --- /dev/null +++ b/src/tools/miri/tests/fail/tls_static_leak.stderr @@ -0,0 +1,23 @@ +error: memory leaked: ALLOC (Rust heap, size: 4, align: 4), allocated here: + --> RUSTLIB/alloc/src/alloc.rs:LL:CC + | +LL | __rust_alloc(layout.size(), layout.align()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: inside `std::alloc::alloc` at RUSTLIB/alloc/src/alloc.rs:LL:CC + = note: inside `std::alloc::Global::alloc_impl` at RUSTLIB/alloc/src/alloc.rs:LL:CC + = note: inside `<std::alloc::Global as std::alloc::Allocator>::allocate` at RUSTLIB/alloc/src/alloc.rs:LL:CC + = note: inside `alloc::alloc::exchange_malloc` at RUSTLIB/alloc/src/alloc.rs:LL:CC + = note: inside `std::boxed::Box::<i32>::new` at RUSTLIB/alloc/src/boxed.rs:LL:CC +note: inside closure + --> $DIR/tls_static_leak.rs:LL:CC + | +LL | TLS.set(Some(Box::leak(Box::new(123)))); + | ^^^^^^^^^^^^^ + +note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace + +note: the evaluated program leaked memory, pass `-Zmiri-ignore-leaks` to disable this check + +error: aborting due to previous error + diff --git a/src/tools/miri/tests/fail/validity/cast_fn_ptr_invalid_caller_arg.rs b/src/tools/miri/tests/fail/validity/cast_fn_ptr_invalid_caller_arg.rs index ee80186d4b5..9357b372505 100644 --- a/src/tools/miri/tests/fail/validity/cast_fn_ptr_invalid_caller_arg.rs +++ b/src/tools/miri/tests/fail/validity/cast_fn_ptr_invalid_caller_arg.rs @@ -20,7 +20,7 @@ fn call(f: fn(NonZeroU32)) { let tmp = ptr::addr_of!(c); let ptr = tmp as *const NonZeroU32; // The call site now is a NonZeroU32-to-u32 transmute. - Call(_res = f(*ptr), retblock) //~ERROR: expected something greater or equal to 1 + Call(_res = f(*ptr), retblock, UnwindContinue()) //~ERROR: expected something greater or equal to 1 } retblock = { Return() diff --git a/src/tools/miri/tests/fail/validity/cast_fn_ptr_invalid_caller_arg.stderr b/src/tools/miri/tests/fail/validity/cast_fn_ptr_invalid_caller_arg.stderr index 234c2804008..b40d99f7bc9 100644 --- a/src/tools/miri/tests/fail/validity/cast_fn_ptr_invalid_caller_arg.stderr +++ b/src/tools/miri/tests/fail/validity/cast_fn_ptr_invalid_caller_arg.stderr @@ -1,8 +1,8 @@ error: Undefined Behavior: constructing invalid value: encountered 0, but expected something greater or equal to 1 --> $DIR/cast_fn_ptr_invalid_caller_arg.rs:LL:CC | -LL | Call(_res = f(*ptr), retblock) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered 0, but expected something greater or equal to 1 +LL | Call(_res = f(*ptr), retblock, UnwindContinue()) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: encountered 0, but expected something greater or equal to 1 | = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information diff --git a/src/tools/miri/tests/fail/weak_memory/racing_mixed_size.stderr b/src/tools/miri/tests/fail/weak_memory/racing_mixed_size.stderr index 03b5a4e4c17..d35970205f2 100644 --- a/src/tools/miri/tests/fail/weak_memory/racing_mixed_size.stderr +++ b/src/tools/miri/tests/fail/weak_memory/racing_mixed_size.stderr @@ -10,6 +10,7 @@ help: and (1) occurred earlier here LL | x.store(1, Relaxed); | ^^^^^^^^^^^^^^^^^^^ = help: overlapping unsynchronized atomic accesses must use the same access size + = help: see https://doc.rust-lang.org/nightly/std/sync/atomic/index.html#memory-model-for-atomic-accesses for more information about the Rust memory model = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information = note: BACKTRACE (of the first span): diff --git a/src/tools/miri/tests/fail/weak_memory/racing_mixed_size_read.stderr b/src/tools/miri/tests/fail/weak_memory/racing_mixed_size_read.stderr index 05eba41f4d5..e85d76951b6 100644 --- a/src/tools/miri/tests/fail/weak_memory/racing_mixed_size_read.stderr +++ b/src/tools/miri/tests/fail/weak_memory/racing_mixed_size_read.stderr @@ -10,6 +10,7 @@ help: and (1) occurred earlier here LL | x.load(Relaxed); | ^^^^^^^^^^^^^^^ = help: overlapping unsynchronized atomic accesses must use the same access size + = help: see https://doc.rust-lang.org/nightly/std/sync/atomic/index.html#memory-model-for-atomic-accesses for more information about the Rust memory model = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information = note: BACKTRACE (of the first span): diff --git a/src/tools/miri/tests/pass-dep/shims/pthreads.rs b/src/tools/miri/tests/pass-dep/shims/pthreads.rs index 80b8d67401a..3bb6f83ec2a 100644 --- a/src/tools/miri/tests/pass-dep/shims/pthreads.rs +++ b/src/tools/miri/tests/pass-dep/shims/pthreads.rs @@ -1,18 +1,26 @@ //@ignore-target-windows: No libc on Windows -use std::ffi::{CStr, CString}; +use std::ffi::CStr; +#[cfg(not(target_os = "freebsd"))] +use std::ffi::CString; use std::thread; fn main() { + test_named_thread_truncation(); + + #[cfg(not(target_os = "freebsd"))] test_mutex_libc_init_recursive(); + #[cfg(not(target_os = "freebsd"))] test_mutex_libc_init_normal(); + #[cfg(not(target_os = "freebsd"))] test_mutex_libc_init_errorcheck(); + #[cfg(not(target_os = "freebsd"))] test_rwlock_libc_static_initializer(); - test_named_thread_truncation(); #[cfg(target_os = "linux")] test_mutex_libc_static_initializer_recursive(); } +#[cfg(not(target_os = "freebsd"))] fn test_mutex_libc_init_recursive() { unsafe { let mut attr: libc::pthread_mutexattr_t = std::mem::zeroed(); @@ -37,6 +45,7 @@ fn test_mutex_libc_init_recursive() { } } +#[cfg(not(target_os = "freebsd"))] fn test_mutex_libc_init_normal() { unsafe { let mut mutexattr: libc::pthread_mutexattr_t = std::mem::zeroed(); @@ -59,6 +68,7 @@ fn test_mutex_libc_init_normal() { } } +#[cfg(not(target_os = "freebsd"))] fn test_mutex_libc_init_errorcheck() { unsafe { let mut mutexattr: libc::pthread_mutexattr_t = std::mem::zeroed(); @@ -104,6 +114,7 @@ fn test_mutex_libc_static_initializer_recursive() { // Testing the behavior of std::sync::RwLock does not fully exercise the pthread rwlock shims, we // need to go a layer deeper and test the behavior of the libc functions, because // std::sys::unix::rwlock::RWLock itself keeps track of write_locked and num_readers. +#[cfg(not(target_os = "freebsd"))] fn test_rwlock_libc_static_initializer() { let rw = std::cell::UnsafeCell::new(libc::PTHREAD_RWLOCK_INITIALIZER); unsafe { @@ -137,6 +148,12 @@ fn test_named_thread_truncation() { fn set_thread_name(name: &CStr) -> i32 { #[cfg(target_os = "linux")] return unsafe { libc::pthread_setname_np(libc::pthread_self(), name.as_ptr().cast()) }; + #[cfg(target_os = "freebsd")] + unsafe { + // pthread_set_name_np does not return anything + libc::pthread_set_name_np(libc::pthread_self(), name.as_ptr().cast()); + return 0; + }; #[cfg(target_os = "macos")] return unsafe { libc::pthread_setname_np(name.as_ptr().cast()) }; } @@ -147,16 +164,23 @@ fn test_named_thread_truncation() { // But the system is limited -- make sure we successfully set a truncation. let mut buf = vec![0u8; long_name.len() + 1]; + #[cfg(not(target_os = "freebsd"))] unsafe { libc::pthread_getname_np(libc::pthread_self(), buf.as_mut_ptr().cast(), buf.len()) }; + #[cfg(target_os = "freebsd")] + unsafe { + libc::pthread_get_name_np(libc::pthread_self(), buf.as_mut_ptr().cast(), buf.len()) + }; let cstr = CStr::from_bytes_until_nul(&buf).unwrap(); - assert!(cstr.to_bytes().len() >= 15); // POSIX seems to promise at least 15 chars + assert!(cstr.to_bytes().len() >= 15, "name is too short: len={}", cstr.to_bytes().len()); // POSIX seems to promise at least 15 chars assert!(long_name.as_bytes().starts_with(cstr.to_bytes())); // Also test directly calling pthread_setname to check its return value. assert_eq!(set_thread_name(&cstr), 0); - // But with a too long name it should fail. + // But with a too long name it should fail (except on FreeBSD where the + // function has no return, hence cannot indicate failure). + #[cfg(not(target_os = "freebsd"))] assert_ne!(set_thread_name(&CString::new(long_name).unwrap()), 0); }); result.unwrap().join().unwrap(); diff --git a/src/tools/miri/tests/pass/function_calls/return_place_on_heap.rs b/src/tools/miri/tests/pass/function_calls/return_place_on_heap.rs index d410a875b1b..89ee689fabe 100644 --- a/src/tools/miri/tests/pass/function_calls/return_place_on_heap.rs +++ b/src/tools/miri/tests/pass/function_calls/return_place_on_heap.rs @@ -11,7 +11,7 @@ pub fn main() { { let x = 0; let ptr = &raw mut x; - Call(*ptr = myfun(), after_call) + Call(*ptr = myfun(), after_call, UnwindContinue()) } after_call = { diff --git a/src/tools/miri/tests/pass/intrinsics-x86-sse41.rs b/src/tools/miri/tests/pass/intrinsics-x86-sse41.rs index d5489ffaf4b..8c565a2d6e0 100644 --- a/src/tools/miri/tests/pass/intrinsics-x86-sse41.rs +++ b/src/tools/miri/tests/pass/intrinsics-x86-sse41.rs @@ -73,114 +73,342 @@ unsafe fn test_sse41() { test_mm_dp_ps(); #[target_feature(enable = "sse4.1")] - unsafe fn test_mm_floor_sd() { - let a = _mm_setr_pd(2.5, 4.5); - let b = _mm_setr_pd(-1.5, -3.5); - let r = _mm_floor_sd(a, b); - let e = _mm_setr_pd(-2.0, 4.5); - assert_eq_m128d(r, e); + unsafe fn test_round_nearest_f32() { + #[target_feature(enable = "sse4.1")] + unsafe fn test(x: f32, res: f32) { + let a = _mm_setr_ps(3.5, 2.5, 1.5, 4.5); + let b = _mm_setr_ps(x, -1.5, -3.5, -2.5); + let e = _mm_setr_ps(res, 2.5, 1.5, 4.5); + let r = _mm_round_ss::<_MM_FROUND_TO_NEAREST_INT>(a, b); + assert_eq_m128(r, e); + // Assume round-to-nearest by default + let r = _mm_round_ss::<_MM_FROUND_CUR_DIRECTION>(a, b); + assert_eq_m128(r, e); + + let a = _mm_set1_ps(x); + let e = _mm_set1_ps(res); + let r = _mm_round_ps::<_MM_FROUND_TO_NEAREST_INT>(a); + assert_eq_m128(r, e); + // Assume round-to-nearest by default + let r = _mm_round_ps::<_MM_FROUND_CUR_DIRECTION>(a); + assert_eq_m128(r, e); + } + + // Test rounding direction + test(-2.5, -2.0); + test(-1.75, -2.0); + test(-1.5, -2.0); + test(-1.25, -1.0); + test(-1.0, -1.0); + test(0.0, 0.0); + test(1.0, 1.0); + test(1.25, 1.0); + test(1.5, 2.0); + test(1.75, 2.0); + test(2.5, 2.0); + + // Test that each element is rounded + let a = _mm_setr_ps(1.5, 3.5, 5.5, 7.5); + let e = _mm_setr_ps(2.0, 4.0, 6.0, 8.0); + let r = _mm_round_ps::<_MM_FROUND_TO_NEAREST_INT>(a); + assert_eq_m128(r, e); + // Assume round-to-nearest by default + let r = _mm_round_ps::<_MM_FROUND_CUR_DIRECTION>(a); + assert_eq_m128(r, e); } - test_mm_floor_sd(); + test_round_nearest_f32(); #[target_feature(enable = "sse4.1")] - unsafe fn test_mm_floor_ss() { - let a = _mm_setr_ps(2.5, 4.5, 8.5, 16.5); - let b = _mm_setr_ps(-1.5, -3.5, -7.5, -15.5); - let r = _mm_floor_ss(a, b); - let e = _mm_setr_ps(-2.0, 4.5, 8.5, 16.5); + unsafe fn test_round_floor_f32() { + #[target_feature(enable = "sse4.1")] + unsafe fn test(x: f32, res: f32) { + let a = _mm_setr_ps(3.5, 2.5, 1.5, 4.5); + let b = _mm_setr_ps(x, -1.5, -3.5, -2.5); + let e = _mm_setr_ps(res, 2.5, 1.5, 4.5); + let r = _mm_floor_ss(a, b); + assert_eq_m128(r, e); + let r = _mm_round_ss::<_MM_FROUND_TO_NEG_INF>(a, b); + assert_eq_m128(r, e); + + let a = _mm_set1_ps(x); + let e = _mm_set1_ps(res); + let r = _mm_floor_ps(a); + assert_eq_m128(r, e); + let r = _mm_round_ps::<_MM_FROUND_TO_NEG_INF>(a); + assert_eq_m128(r, e); + } + + // Test rounding direction + test(-2.5, -3.0); + test(-1.75, -2.0); + test(-1.5, -2.0); + test(-1.25, -2.0); + test(-1.0, -1.0); + test(0.0, 0.0); + test(1.0, 1.0); + test(1.25, 1.0); + test(1.5, 1.0); + test(1.75, 1.0); + test(2.5, 2.0); + + // Test that each element is rounded + let a = _mm_setr_ps(1.5, 3.5, 5.5, 7.5); + let e = _mm_setr_ps(1.0, 3.0, 5.0, 7.0); + let r = _mm_floor_ps(a); + assert_eq_m128(r, e); + let r = _mm_round_ps::<_MM_FROUND_TO_NEG_INF>(a); assert_eq_m128(r, e); } - test_mm_floor_ss(); + test_round_floor_f32(); #[target_feature(enable = "sse4.1")] - unsafe fn test_mm_ceil_sd() { - let a = _mm_setr_pd(1.5, 3.5); - let b = _mm_setr_pd(-2.5, -4.5); - let r = _mm_ceil_sd(a, b); - let e = _mm_setr_pd(-2.0, 3.5); - assert_eq_m128d(r, e); + unsafe fn test_round_ceil_f32() { + #[target_feature(enable = "sse4.1")] + unsafe fn test(x: f32, res: f32) { + let a = _mm_setr_ps(3.5, 2.5, 1.5, 4.5); + let b = _mm_setr_ps(x, -1.5, -3.5, -2.5); + let e = _mm_setr_ps(res, 2.5, 1.5, 4.5); + let r = _mm_ceil_ss(a, b); + assert_eq_m128(r, e); + let r = _mm_round_ss::<_MM_FROUND_TO_POS_INF>(a, b); + assert_eq_m128(r, e); + + let a = _mm_set1_ps(x); + let e = _mm_set1_ps(res); + let r = _mm_ceil_ps(a); + assert_eq_m128(r, e); + let r = _mm_round_ps::<_MM_FROUND_TO_POS_INF>(a); + assert_eq_m128(r, e); + } + + // Test rounding direction + test(-2.5, -2.0); + test(-1.75, -1.0); + test(-1.5, -1.0); + test(-1.25, -1.0); + test(-1.0, -1.0); + test(0.0, 0.0); + test(1.0, 1.0); + test(1.25, 2.0); + test(1.5, 2.0); + test(1.75, 2.0); + test(2.5, 3.0); + + // Test that each element is rounded + let a = _mm_setr_ps(1.5, 3.5, 5.5, 7.5); + let e = _mm_setr_ps(2.0, 4.0, 6.0, 8.0); + let r = _mm_ceil_ps(a); + assert_eq_m128(r, e); + let r = _mm_round_ps::<_MM_FROUND_TO_POS_INF>(a); + assert_eq_m128(r, e); } - test_mm_ceil_sd(); + test_round_ceil_f32(); #[target_feature(enable = "sse4.1")] - unsafe fn test_mm_ceil_ss() { - let a = _mm_setr_ps(1.5, 3.5, 7.5, 15.5); - let b = _mm_setr_ps(-2.5, -4.5, -8.5, -16.5); - let r = _mm_ceil_ss(a, b); - let e = _mm_setr_ps(-2.0, 3.5, 7.5, 15.5); + unsafe fn test_round_trunc_f32() { + #[target_feature(enable = "sse4.1")] + unsafe fn test(x: f32, res: f32) { + let a = _mm_setr_ps(3.5, 2.5, 1.5, 4.5); + let b = _mm_setr_ps(x, -1.5, -3.5, -2.5); + let e = _mm_setr_ps(res, 2.5, 1.5, 4.5); + let r = _mm_round_ss::<_MM_FROUND_TO_ZERO>(a, b); + assert_eq_m128(r, e); + + let a = _mm_set1_ps(x); + let e = _mm_set1_ps(res); + let r = _mm_round_ps::<_MM_FROUND_TO_ZERO>(a); + assert_eq_m128(r, e); + } + + // Test rounding direction + test(-2.5, -2.0); + test(-1.75, -1.0); + test(-1.5, -1.0); + test(-1.25, -1.0); + test(-1.0, -1.0); + test(0.0, 0.0); + test(1.0, 1.0); + test(1.25, 1.0); + test(1.5, 1.0); + test(1.75, 1.0); + test(2.5, 2.0); + + // Test that each element is rounded + let a = _mm_setr_ps(1.5, 3.5, 5.5, 7.5); + let e = _mm_setr_ps(1.0, 3.0, 5.0, 7.0); + let r = _mm_round_ps::<_MM_FROUND_TO_ZERO>(a); assert_eq_m128(r, e); } - test_mm_ceil_ss(); + test_round_trunc_f32(); #[target_feature(enable = "sse4.1")] - unsafe fn test_mm_round_sd() { + unsafe fn test_round_nearest_f64() { + #[target_feature(enable = "sse4.1")] + unsafe fn test(x: f64, res: f64) { + let a = _mm_setr_pd(3.5, 2.5); + let b = _mm_setr_pd(x, -1.5); + let e = _mm_setr_pd(res, 2.5); + let r = _mm_round_sd::<_MM_FROUND_TO_NEAREST_INT>(a, b); + assert_eq_m128d(r, e); + // Assume round-to-nearest by default + let r = _mm_round_sd::<_MM_FROUND_CUR_DIRECTION>(a, b); + assert_eq_m128d(r, e); + + let a = _mm_set1_pd(x); + let e = _mm_set1_pd(res); + let r = _mm_round_pd::<_MM_FROUND_TO_NEAREST_INT>(a); + assert_eq_m128d(r, e); + // Assume round-to-nearest by default + let r = _mm_round_pd::<_MM_FROUND_CUR_DIRECTION>(a); + assert_eq_m128d(r, e); + } + + // Test rounding direction + test(-2.5, -2.0); + test(-1.75, -2.0); + test(-1.5, -2.0); + test(-1.25, -1.0); + test(-1.0, -1.0); + test(0.0, 0.0); + test(1.0, 1.0); + test(1.25, 1.0); + test(1.5, 2.0); + test(1.75, 2.0); + test(2.5, 2.0); + + // Test that each element is rounded let a = _mm_setr_pd(1.5, 3.5); - let b = _mm_setr_pd(-2.5, -4.5); - let r = _mm_round_sd::<_MM_FROUND_TO_NEAREST_INT>(a, b); - let e = _mm_setr_pd(-2.0, 3.5); + let e = _mm_setr_pd(2.0, 4.0); + let r = _mm_round_pd::<_MM_FROUND_TO_NEAREST_INT>(a); assert_eq_m128d(r, e); - - let a = _mm_setr_pd(1.5, 3.5); - let b = _mm_setr_pd(-2.5, -4.5); - let r = _mm_round_sd::<_MM_FROUND_TO_NEG_INF>(a, b); - let e = _mm_setr_pd(-3.0, 3.5); + // Assume round-to-nearest by default + let r = _mm_round_pd::<_MM_FROUND_CUR_DIRECTION>(a); assert_eq_m128d(r, e); + } + test_round_nearest_f64(); + #[target_feature(enable = "sse4.1")] + unsafe fn test_round_floor_f64() { + #[target_feature(enable = "sse4.1")] + unsafe fn test(x: f64, res: f64) { + let a = _mm_setr_pd(3.5, 2.5); + let b = _mm_setr_pd(x, -1.5); + let e = _mm_setr_pd(res, 2.5); + let r = _mm_floor_sd(a, b); + assert_eq_m128d(r, e); + let r = _mm_round_sd::<_MM_FROUND_TO_NEG_INF>(a, b); + assert_eq_m128d(r, e); + + let a = _mm_set1_pd(x); + let e = _mm_set1_pd(res); + let r = _mm_floor_pd(a); + assert_eq_m128d(r, e); + let r = _mm_round_pd::<_MM_FROUND_TO_NEG_INF>(a); + assert_eq_m128d(r, e); + } + + // Test rounding direction + test(-2.5, -3.0); + test(-1.75, -2.0); + test(-1.5, -2.0); + test(-1.25, -2.0); + test(-1.0, -1.0); + test(0.0, 0.0); + test(1.0, 1.0); + test(1.25, 1.0); + test(1.5, 1.0); + test(1.75, 1.0); + test(2.5, 2.0); + + // Test that each element is rounded let a = _mm_setr_pd(1.5, 3.5); - let b = _mm_setr_pd(-2.5, -4.5); - let r = _mm_round_sd::<_MM_FROUND_TO_POS_INF>(a, b); - let e = _mm_setr_pd(-2.0, 3.5); + let e = _mm_setr_pd(1.0, 3.0); + let r = _mm_floor_pd(a); assert_eq_m128d(r, e); - - let a = _mm_setr_pd(1.5, 3.5); - let b = _mm_setr_pd(-2.5, -4.5); - let r = _mm_round_sd::<_MM_FROUND_TO_ZERO>(a, b); - let e = _mm_setr_pd(-2.0, 3.5); + let r = _mm_round_pd::<_MM_FROUND_TO_NEG_INF>(a); assert_eq_m128d(r, e); + } + test_round_floor_f64(); - // Assume round-to-nearest by default + #[target_feature(enable = "sse4.1")] + unsafe fn test_round_ceil_f64() { + #[target_feature(enable = "sse4.1")] + unsafe fn test(x: f64, res: f64) { + let a = _mm_setr_pd(3.5, 2.5); + let b = _mm_setr_pd(x, -1.5); + let e = _mm_setr_pd(res, 2.5); + let r = _mm_ceil_sd(a, b); + assert_eq_m128d(r, e); + let r = _mm_round_sd::<_MM_FROUND_TO_POS_INF>(a, b); + assert_eq_m128d(r, e); + + let a = _mm_set1_pd(x); + let e = _mm_set1_pd(res); + let r = _mm_ceil_pd(a); + assert_eq_m128d(r, e); + let r = _mm_round_pd::<_MM_FROUND_TO_POS_INF>(a); + assert_eq_m128d(r, e); + } + + // Test rounding direction + test(-2.5, -2.0); + test(-1.75, -1.0); + test(-1.5, -1.0); + test(-1.25, -1.0); + test(-1.0, -1.0); + test(0.0, 0.0); + test(1.0, 1.0); + test(1.25, 2.0); + test(1.5, 2.0); + test(1.75, 2.0); + test(2.5, 3.0); + + // Test that each element is rounded let a = _mm_setr_pd(1.5, 3.5); - let b = _mm_setr_pd(-2.5, -4.5); - let r = _mm_round_sd::<_MM_FROUND_CUR_DIRECTION>(a, b); - let e = _mm_setr_pd(-2.0, 3.5); + let e = _mm_setr_pd(2.0, 4.0); + let r = _mm_ceil_pd(a); + assert_eq_m128d(r, e); + let r = _mm_round_pd::<_MM_FROUND_TO_POS_INF>(a); assert_eq_m128d(r, e); } - test_mm_round_sd(); + test_round_ceil_f64(); #[target_feature(enable = "sse4.1")] - unsafe fn test_mm_round_ss() { - let a = _mm_setr_ps(1.5, 3.5, 7.5, 15.5); - let b = _mm_setr_ps(-1.75, -4.5, -8.5, -16.5); - let r = _mm_round_ss::<_MM_FROUND_TO_NEAREST_INT>(a, b); - let e = _mm_setr_ps(-2.0, 3.5, 7.5, 15.5); - assert_eq_m128(r, e); - - let a = _mm_setr_ps(1.5, 3.5, 7.5, 15.5); - let b = _mm_setr_ps(-1.75, -4.5, -8.5, -16.5); - let r = _mm_round_ss::<_MM_FROUND_TO_NEG_INF>(a, b); - let e = _mm_setr_ps(-2.0, 3.5, 7.5, 15.5); - assert_eq_m128(r, e); - - let a = _mm_setr_ps(1.5, 3.5, 7.5, 15.5); - let b = _mm_setr_ps(-1.75, -4.5, -8.5, -16.5); - let r = _mm_round_ss::<_MM_FROUND_TO_POS_INF>(a, b); - let e = _mm_setr_ps(-1.0, 3.5, 7.5, 15.5); - assert_eq_m128(r, e); - - let a = _mm_setr_ps(1.5, 3.5, 7.5, 15.5); - let b = _mm_setr_ps(-1.75, -4.5, -8.5, -16.5); - let r = _mm_round_ss::<_MM_FROUND_TO_ZERO>(a, b); - let e = _mm_setr_ps(-1.0, 3.5, 7.5, 15.5); - assert_eq_m128(r, e); - - // Assume round-to-nearest by default - let a = _mm_setr_ps(1.5, 3.5, 7.5, 15.5); - let b = _mm_setr_ps(-1.75, -4.5, -8.5, -16.5); - let r = _mm_round_ss::<_MM_FROUND_CUR_DIRECTION>(a, b); - let e = _mm_setr_ps(-2.0, 3.5, 7.5, 15.5); - assert_eq_m128(r, e); + unsafe fn test_round_trunc_f64() { + #[target_feature(enable = "sse4.1")] + unsafe fn test(x: f64, res: f64) { + let a = _mm_setr_pd(3.5, 2.5); + let b = _mm_setr_pd(x, -1.5); + let e = _mm_setr_pd(res, 2.5); + let r = _mm_round_sd::<_MM_FROUND_TO_ZERO>(a, b); + assert_eq_m128d(r, e); + + let a = _mm_set1_pd(x); + let e = _mm_set1_pd(res); + let r = _mm_round_pd::<_MM_FROUND_TO_ZERO>(a); + assert_eq_m128d(r, e); + } + + // Test rounding direction + test(-2.5, -2.0); + test(-1.75, -1.0); + test(-1.5, -1.0); + test(-1.25, -1.0); + test(-1.0, -1.0); + test(0.0, 0.0); + test(1.0, 1.0); + test(1.25, 1.0); + test(1.5, 1.0); + test(1.75, 1.0); + test(2.5, 2.0); + + // Test that each element is rounded + let a = _mm_setr_pd(1.5, 3.5); + let e = _mm_setr_pd(1.0, 3.0); + let r = _mm_round_pd::<_MM_FROUND_TO_ZERO>(a); + assert_eq_m128d(r, e); } - test_mm_round_ss(); + test_round_trunc_f64(); #[target_feature(enable = "sse4.1")] unsafe fn test_mm_minpos_epu16() { diff --git a/src/tools/miri/tests/pass/tls/tls_leak_main_thread_allowed.rs b/src/tools/miri/tests/pass/tls/tls_leak_main_thread_allowed.rs new file mode 100644 index 00000000000..7732e3f9217 --- /dev/null +++ b/src/tools/miri/tests/pass/tls/tls_leak_main_thread_allowed.rs @@ -0,0 +1,23 @@ +//@ignore-target-windows: Windows uses a different mechanism for `thread_local!` +#![feature(thread_local)] + +use std::cell::Cell; + +// Thread-local variables in the main thread are basically like `static` (they live +// as long as the program does), so make sure we treat them the same for leak purposes. +// +// The test covers both TLS statics and the TLS macro. +pub fn main() { + thread_local! { + static TLS_KEY: Cell<Option<&'static i32>> = Cell::new(None); + } + + TLS_KEY.with(|cell| { + cell.set(Some(Box::leak(Box::new(123)))); + }); + + #[thread_local] + static TLS: Cell<Option<&'static i32>> = Cell::new(None); + + TLS.set(Some(Box::leak(Box::new(123)))); +} diff --git a/src/tools/miri/tests/pass/concurrency/tls_lib_drop.rs b/src/tools/miri/tests/pass/tls/tls_macro_drop.rs index bd06eec9cd5..bd06eec9cd5 100644 --- a/src/tools/miri/tests/pass/concurrency/tls_lib_drop.rs +++ b/src/tools/miri/tests/pass/tls/tls_macro_drop.rs diff --git a/src/tools/miri/tests/pass/concurrency/tls_lib_drop.stack.stdout b/src/tools/miri/tests/pass/tls/tls_macro_drop.stack.stdout index b7877820a0c..b7877820a0c 100644 --- a/src/tools/miri/tests/pass/concurrency/tls_lib_drop.stack.stdout +++ b/src/tools/miri/tests/pass/tls/tls_macro_drop.stack.stdout diff --git a/src/tools/miri/tests/pass/concurrency/tls_lib_drop.tree.stdout b/src/tools/miri/tests/pass/tls/tls_macro_drop.tree.stdout index b7877820a0c..b7877820a0c 100644 --- a/src/tools/miri/tests/pass/concurrency/tls_lib_drop.tree.stdout +++ b/src/tools/miri/tests/pass/tls/tls_macro_drop.tree.stdout diff --git a/src/tools/miri/tests/pass/concurrency/tls_lib_drop_single_thread.rs b/src/tools/miri/tests/pass/tls/tls_macro_drop_single_thread.rs index 2766ba36d12..f36c460ae53 100644 --- a/src/tools/miri/tests/pass/concurrency/tls_lib_drop_single_thread.rs +++ b/src/tools/miri/tests/pass/tls/tls_macro_drop_single_thread.rs @@ -1,4 +1,5 @@ -//! Check that destructors of the thread locals are executed on all OSes. +//! Check that destructors of the thread locals are executed on all OSes +//! (even when we do not support concurrency, and cannot run the other test). use std::cell::RefCell; diff --git a/src/tools/miri/tests/pass/concurrency/tls_lib_drop_single_thread.stderr b/src/tools/miri/tests/pass/tls/tls_macro_drop_single_thread.stderr index 09ec1c3c2c5..09ec1c3c2c5 100644 --- a/src/tools/miri/tests/pass/concurrency/tls_lib_drop_single_thread.stderr +++ b/src/tools/miri/tests/pass/tls/tls_macro_drop_single_thread.stderr diff --git a/src/tools/miri/tests/pass/concurrency/thread_locals.rs b/src/tools/miri/tests/pass/tls/tls_static.rs index fc4c8a283dd..fc4c8a283dd 100644 --- a/src/tools/miri/tests/pass/concurrency/thread_locals.rs +++ b/src/tools/miri/tests/pass/tls/tls_static.rs diff --git a/src/tools/rust-analyzer/.github/workflows/autopublish.yaml b/src/tools/rust-analyzer/.github/workflows/autopublish.yaml index 310a8a5be7a..9a5015005b3 100644 --- a/src/tools/rust-analyzer/.github/workflows/autopublish.yaml +++ b/src/tools/rust-analyzer/.github/workflows/autopublish.yaml @@ -19,6 +19,10 @@ jobs: with: fetch-depth: 0 + # https://github.com/jlumbroso/free-disk-space/blob/main/action.yml + - name: Free up some disk space + run: sudo rm -rf /usr/local/lib/android /usr/share/dotnet /opt/ghc /usr/local/.ghcup + - name: Install Rust toolchain run: rustup update --no-self-update stable diff --git a/src/tools/rust-analyzer/.github/workflows/ci.yaml b/src/tools/rust-analyzer/.github/workflows/ci.yaml index fb7b4b07f98..1f2a7796d11 100644 --- a/src/tools/rust-analyzer/.github/workflows/ci.yaml +++ b/src/tools/rust-analyzer/.github/workflows/ci.yaml @@ -8,6 +8,7 @@ on: branches: - auto - try + - automation/bors/try env: CARGO_INCREMENTAL: 0 @@ -84,6 +85,7 @@ jobs: run: cargo build --quiet ${{ env.USE_SYSROOT_ABI }} - name: Test + if: matrix.os == 'ubuntu-latest' || github.event_name == 'push' run: cargo test ${{ env.USE_SYSROOT_ABI }} -- --nocapture --quiet - name: Switch to stable toolchain diff --git a/src/tools/rust-analyzer/.github/workflows/metrics.yaml b/src/tools/rust-analyzer/.github/workflows/metrics.yaml index bbeccd1621d..741e559953f 100644 --- a/src/tools/rust-analyzer/.github/workflows/metrics.yaml +++ b/src/tools/rust-analyzer/.github/workflows/metrics.yaml @@ -140,11 +140,14 @@ jobs: - name: Combine json run: | - git clone --depth 1 https://$METRICS_TOKEN@github.com/rust-analyzer/metrics.git + mkdir ~/.ssh + echo "${{ secrets.METRICS_DEPLOY_KEY }}" > ~/.ssh/id_ed25519 + chmod 600 ~/.ssh/id_ed25519 + chmod 700 ~/.ssh + + git clone --depth 1 git@github.com:rust-analyzer/metrics.git jq -s ".[0] * .[1] * .[2] * .[3] * .[4] * .[5]" build.json self.json ripgrep-13.0.0.json webrender-2022.json diesel-1.4.8.json hyper-0.14.18.json -c >> metrics/metrics.json cd metrics git add . git -c user.name=Bot -c user.email=dummy@example.com commit --message 📈 git push origin master - env: - METRICS_TOKEN: ${{ secrets.METRICS_TOKEN }} diff --git a/src/tools/rust-analyzer/Cargo.lock b/src/tools/rust-analyzer/Cargo.lock index bd6554bf889..fcb188c0dfa 100644 --- a/src/tools/rust-analyzer/Cargo.lock +++ b/src/tools/rust-analyzer/Cargo.lock @@ -33,12 +33,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "9c7d0618f0e0b7e8ff11427422b64564d5fb0be1940354bfe2e0529b18a9d9b8" [[package]] -name = "anymap" -version = "1.0.0-beta.2" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "8f1f8f5a6f3d50d89e3797d7593a50f96bb2aaa20ca0cc7be1fb673232c91d72" - -[[package]] name = "arbitrary" version = "1.3.0" source = "registry+https://github.com/rust-lang/crates.io-index" @@ -177,9 +171,9 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd" [[package]] name = "chalk-derive" -version = "0.92.0" +version = "0.93.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ff5053a8a42dbff5279a82423946fc56dc1253b76cf211b2b3c14b3aad4e1281" +checksum = "264726159011fc7f22c23eb51f49021ece6e71bc358b96e7f2e842db0b14162b" dependencies = [ "proc-macro2", "quote", @@ -189,9 +183,9 @@ dependencies = [ [[package]] name = "chalk-ir" -version = "0.92.0" +version = "0.93.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "8a56de2146a8ed0fcd54f4bd50db852f1de4eac9e1efe568494f106c21b77d2a" +checksum = "d65c17407d4c756b8f7f84344acb0fb96364d0298822743219bb25769b6d00df" dependencies = [ "bitflags 1.3.2", "chalk-derive", @@ -200,9 +194,9 @@ dependencies = [ [[package]] name = "chalk-recursive" -version = "0.92.0" +version = "0.93.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "5cc09e6e9531f3544989ef89b189e80fbc7ad9e2f73f1c5e03ddc9ffb0527463" +checksum = "80e2cf7b70bedaaf3a8cf3c93b6120c2bb65be89389124028e724d19e209686e" dependencies = [ "chalk-derive", "chalk-ir", @@ -213,9 +207,9 @@ dependencies = [ [[package]] name = "chalk-solve" -version = "0.92.0" +version = "0.93.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b392e02b4c81ec76d3748da839fc70a5539b83d27c9030668463d34d5110b860" +checksum = "afc67c548d3854f64e97e67dc5b7c88513425c5bfa347cff96b7992ae6379288" dependencies = [ "chalk-derive", "chalk-ir", @@ -518,7 +512,6 @@ dependencies = [ name = "hir-def" version = "0.0.0" dependencies = [ - "anymap", "arrayvec", "base-db", "bitflags 2.3.2", @@ -531,8 +524,6 @@ dependencies = [ "fst", "hashbrown 0.12.3", "hir-expand", - "hkalbasi-rustc-ap-rustc_abi", - "hkalbasi-rustc-ap-rustc_index", "indexmap 2.0.0", "intern", "itertools", @@ -541,7 +532,7 @@ dependencies = [ "mbe", "once_cell", "profile", - "ra-ap-rustc_parse_format", + "rustc-dependencies", "rustc-hash", "smallvec", "stdx", @@ -594,7 +585,6 @@ dependencies = [ "expect-test", "hir-def", "hir-expand", - "hkalbasi-rustc-ap-rustc_index", "intern", "itertools", "la-arena 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)", @@ -604,6 +594,7 @@ dependencies = [ "oorandom", "profile", "project-model", + "rustc-dependencies", "rustc-hash", "scoped-tls", "smallvec", @@ -618,27 +609,6 @@ dependencies = [ ] [[package]] -name = "hkalbasi-rustc-ap-rustc_abi" -version = "0.0.20221221" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "adabaadad9aa7576f97af02241cdf5554d62fb3d51a84cb05d77ba28edd3013f" -dependencies = [ - "bitflags 1.3.2", - "hkalbasi-rustc-ap-rustc_index", - "tracing", -] - -[[package]] -name = "hkalbasi-rustc-ap-rustc_index" -version = "0.0.20221221" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "f4d3c48474e09afb0f5efbd6f758e05411699301a113c47d454d28ec7059d00e" -dependencies = [ - "arrayvec", - "smallvec", -] - -[[package]] name = "home" version = "0.5.5" source = "registry+https://github.com/rust-lang/crates.io-index" @@ -918,9 +888,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646" [[package]] name = "libc" -version = "0.2.146" +version = "0.2.148" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "f92be4933c13fd498862a9e02a3055f8a8d9c039ce33db97306fd5a6caa7f29b" +checksum = "9cdc71e17332e86d2e1d38c1f99edcb6288ee11b815fb1a4b049eaa2114d369b" [[package]] name = "libloading" @@ -1277,7 +1247,7 @@ dependencies = [ "drop_bomb", "expect-test", "limit", - "ra-ap-rustc_lexer", + "rustc-dependencies", "sourcegen", "stdx", ] @@ -1435,9 +1405,9 @@ dependencies = [ [[package]] name = "protobuf" -version = "3.1.0" +version = "3.2.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "4ee4a7d8b91800c8f167a6268d1a1026607368e1adc84e98fe044aeb905302f7" +checksum = "b55bad9126f378a853655831eb7363b7b01b81d19f8cb1218861086ca4a1a61e" dependencies = [ "once_cell", "protobuf-support", @@ -1446,9 +1416,9 @@ dependencies = [ [[package]] name = "protobuf-support" -version = "3.1.0" +version = "3.2.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "8ca157fe12fc7ee2e315f2f735e27df41b3d97cdd70ea112824dac1ffb08ee1c" +checksum = "a5d4d7b8601c814cfb36bcebb79f0e61e45e1e93640cf778837833bbed05c372" dependencies = [ "thiserror", ] @@ -1483,20 +1453,51 @@ dependencies = [ ] [[package]] +name = "ra-ap-rustc_abi" +version = "0.18.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "7082716cb2bbcd8b5f062fe950cbbc87f3aba022d6da4168db35af6732a7f15d" +dependencies = [ + "bitflags 1.3.2", + "ra-ap-rustc_index 0.18.0", + "tracing", +] + +[[package]] name = "ra-ap-rustc_index" -version = "0.10.0" +version = "0.14.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "07b5fa61d34da18e148dc3a81f654488ea07f40938d8aefb17f8b64bb78c6120" +checksum = "643ca3609870b1778d9cd1f2a8e4ccb4af0f48f3637cc257a09494d087bd93dc" dependencies = [ "arrayvec", "smallvec", ] [[package]] +name = "ra-ap-rustc_index" +version = "0.18.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "19e14b1fc835d6992b128a03a3f3a8365ba9f03e1c656a1670305f63f30d786d" +dependencies = [ + "arrayvec", + "smallvec", +] + +[[package]] +name = "ra-ap-rustc_lexer" +version = "0.14.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "30ffd24f9ba4f1d25ff27ca1469b8d22a3bdfb12cf644fc8bfcb63121fa5da6b" +dependencies = [ + "unicode-properties", + "unicode-xid", +] + +[[package]] name = "ra-ap-rustc_lexer" -version = "0.10.0" +version = "0.18.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "f2e2f6b48422e4eed5218277ab7cc9733e60dd8f3167f4f36a49a0cafe4dc195" +checksum = "1762abb25eb1e37c1823f62b5da0821bbcd870812318db084c9516c2f78d2dcd" dependencies = [ "unicode-properties", "unicode-xid", @@ -1504,12 +1505,12 @@ dependencies = [ [[package]] name = "ra-ap-rustc_parse_format" -version = "0.10.0" +version = "0.14.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "c3c7369ad01cc79f9e3513c9f6a6326f6b980100e4862a7ac71b9991c88108bb" +checksum = "207b5ac1a21d4926695e03b605ffb9f63d4968e0488e9197c04c512c37303aa7" dependencies = [ - "ra-ap-rustc_index", - "ra-ap-rustc_lexer", + "ra-ap-rustc_index 0.14.0", + "ra-ap-rustc_lexer 0.14.0", ] [[package]] @@ -1594,10 +1595,12 @@ dependencies = [ "oorandom", "parking_lot 0.12.1", "parking_lot_core 0.9.6", + "parser", "proc-macro-api", "profile", "project-model", "rayon", + "rustc-dependencies", "rustc-hash", "scip", "serde", @@ -1627,6 +1630,16 @@ source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "d626bb9dae77e28219937af045c257c28bfd3f69333c512553507f5f9798cb76" [[package]] +name = "rustc-dependencies" +version = "0.0.0" +dependencies = [ + "ra-ap-rustc_abi", + "ra-ap-rustc_index 0.18.0", + "ra-ap-rustc_lexer 0.18.0", + "ra-ap-rustc_parse_format", +] + +[[package]] name = "rustc-hash" version = "1.1.0" source = "registry+https://github.com/rust-lang/crates.io-index" @@ -1678,9 +1691,9 @@ dependencies = [ [[package]] name = "scip" -version = "0.1.1" +version = "0.3.1" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "b2bfbb10286f69fad7c78db71004b7839bf957788359fe0c479f029f9849136b" +checksum = "3e84d21062a3ba08d58870c8c36b0c005b2b2261c6ad1bf7042585427c781883" dependencies = [ "protobuf", ] @@ -1853,9 +1866,9 @@ dependencies = [ "proc-macro2", "profile", "quote", - "ra-ap-rustc_lexer", "rayon", "rowan", + "rustc-dependencies", "rustc-hash", "smol_str", "sourcegen", diff --git a/src/tools/rust-analyzer/Cargo.toml b/src/tools/rust-analyzer/Cargo.toml index cab88fc18ce..c382a5a37d2 100644 --- a/src/tools/rust-analyzer/Cargo.toml +++ b/src/tools/rust-analyzer/Cargo.toml @@ -79,6 +79,7 @@ toolchain = { path = "./crates/toolchain", version = "0.0.0" } tt = { path = "./crates/tt", version = "0.0.0" } vfs-notify = { path = "./crates/vfs-notify", version = "0.0.0" } vfs = { path = "./crates/vfs", version = "0.0.0" } +rustc-dependencies = { path = "./crates/rustc-dependencies", version = "0.0.0" } # local crates that aren't published to crates.io. These should not have versions. proc-macro-test = { path = "./crates/proc-macro-test" } @@ -101,11 +102,6 @@ serde = { version = "1.0.156", features = ["derive"] } serde_json = "1.0.96" triomphe = { version = "0.1.8", default-features = false, features = ["std"] } # can't upgrade due to dashmap depending on 0.12.3 currently -hashbrown = { version = "0.12.3", features = ["inline-more"], default-features = false } - -rustc_lexer = { version = "0.10.0", package = "ra-ap-rustc_lexer" } -rustc_parse_format = { version = "0.10.0", package = "ra-ap-rustc_parse_format", default-features = false } - -# Upstream broke this for us so we can't update it -rustc_abi = { version = "0.0.20221221", package = "hkalbasi-rustc-ap-rustc_abi", default-features = false } -rustc_index = { version = "0.0.20221221", package = "hkalbasi-rustc-ap-rustc_index", default-features = false } +hashbrown = { version = "0.12.3", features = [ + "inline-more", +], default-features = false } diff --git a/src/tools/rust-analyzer/crates/base-db/src/input.rs b/src/tools/rust-analyzer/crates/base-db/src/input.rs index b75c7079be7..65db5c0fc7d 100644 --- a/src/tools/rust-analyzer/crates/base-db/src/input.rs +++ b/src/tools/rust-analyzer/crates/base-db/src/input.rs @@ -257,6 +257,7 @@ pub trait ProcMacroExpander: fmt::Debug + Send + Sync + RefUnwindSafe { ) -> Result<Subtree, ProcMacroExpansionError>; } +#[derive(Debug)] pub enum ProcMacroExpansionError { Panic(String), /// Things like "proc macro server was killed by OOM". diff --git a/src/tools/rust-analyzer/crates/base-db/src/lib.rs b/src/tools/rust-analyzer/crates/base-db/src/lib.rs index af204e44e6e..c5c4afa30f7 100644 --- a/src/tools/rust-analyzer/crates/base-db/src/lib.rs +++ b/src/tools/rust-analyzer/crates/base-db/src/lib.rs @@ -75,7 +75,7 @@ pub trait SourceDatabase: FileLoader + std::fmt::Debug { #[salsa::input] fn crate_graph(&self) -> Arc<CrateGraph>; - /// The crate graph. + /// The proc macros. #[salsa::input] fn proc_macros(&self) -> Arc<ProcMacros>; } diff --git a/src/tools/rust-analyzer/crates/flycheck/src/lib.rs b/src/tools/rust-analyzer/crates/flycheck/src/lib.rs index 2de719af92c..0749d91eb32 100644 --- a/src/tools/rust-analyzer/crates/flycheck/src/lib.rs +++ b/src/tools/rust-analyzer/crates/flycheck/src/lib.rs @@ -50,6 +50,7 @@ pub enum FlycheckConfig { extra_args: Vec<String>, extra_env: FxHashMap<String, String>, ansi_color_output: bool, + target_dir: Option<PathBuf>, }, CustomCommand { command: String, @@ -308,6 +309,7 @@ impl FlycheckActor { features, extra_env, ansi_color_output, + target_dir, } => { let mut cmd = Command::new(toolchain::cargo()); cmd.arg(command); @@ -340,6 +342,9 @@ impl FlycheckActor { cmd.arg(features.join(" ")); } } + if let Some(target_dir) = target_dir { + cmd.arg("--target-dir").arg(target_dir); + } cmd.envs(extra_env); (cmd, extra_args) } diff --git a/src/tools/rust-analyzer/crates/hir-def/Cargo.toml b/src/tools/rust-analyzer/crates/hir-def/Cargo.toml index 8cf61ee04d4..99b8e9bf0e1 100644 --- a/src/tools/rust-analyzer/crates/hir-def/Cargo.toml +++ b/src/tools/rust-analyzer/crates/hir-def/Cargo.toml @@ -12,7 +12,6 @@ rust-version.workspace = true doctest = false [dependencies] -anymap = "1.0.0-beta.2" arrayvec = "0.7.2" bitflags = "2.1.0" cov-mark = "2.0.0-pre.1" @@ -31,10 +30,7 @@ smallvec.workspace = true hashbrown.workspace = true triomphe.workspace = true -rustc_abi.workspace = true -rustc_index.workspace = true -rustc_parse_format.workspace = true - +rustc-dependencies.workspace = true # local deps stdx.workspace = true @@ -48,8 +44,12 @@ cfg.workspace = true tt.workspace = true limit.workspace = true + [dev-dependencies] expect-test = "1.4.0" # local deps test-utils.workspace = true + +[features] +in-rust-tree = ["rustc-dependencies/in-rust-tree"] diff --git a/src/tools/rust-analyzer/crates/hir-def/src/attr.rs b/src/tools/rust-analyzer/crates/hir-def/src/attr.rs index c6454eb9ea0..fa3025e0303 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/attr.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/attr.rs @@ -215,6 +215,10 @@ impl Attrs { self.doc_exprs().flat_map(|doc_expr| doc_expr.aliases().to_vec()) } + pub fn export_name(&self) -> Option<&SmolStr> { + self.by_key("export_name").string_value() + } + pub fn is_proc_macro(&self) -> bool { self.by_key("proc_macro").exists() } diff --git a/src/tools/rust-analyzer/crates/hir-def/src/body.rs b/src/tools/rust-analyzer/crates/hir-def/src/body.rs index c0baf6011f7..1942c60c075 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/body.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/body.rs @@ -57,7 +57,7 @@ pub struct Body { pub type ExprPtr = AstPtr<ast::Expr>; pub type ExprSource = InFile<ExprPtr>; -pub type PatPtr = Either<AstPtr<ast::Pat>, AstPtr<ast::SelfParam>>; +pub type PatPtr = AstPtr<Either<ast::Pat, ast::SelfParam>>; pub type PatSource = InFile<PatPtr>; pub type LabelPtr = AstPtr<ast::Label>; @@ -356,12 +356,12 @@ impl BodySourceMap { } pub fn node_pat(&self, node: InFile<&ast::Pat>) -> Option<PatId> { - let src = node.map(|it| Either::Left(AstPtr::new(it))); + let src = node.map(|it| AstPtr::new(it).wrap_left()); self.pat_map.get(&src).cloned() } pub fn node_self_param(&self, node: InFile<&ast::SelfParam>) -> Option<PatId> { - let src = node.map(|it| Either::Right(AstPtr::new(it))); + let src = node.map(|it| AstPtr::new(it).wrap_right()); self.pat_map.get(&src).cloned() } diff --git a/src/tools/rust-analyzer/crates/hir-def/src/body/lower.rs b/src/tools/rust-analyzer/crates/hir-def/src/body/lower.rs index cc02df80a8f..e4158d7564b 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/body/lower.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/body/lower.rs @@ -196,16 +196,12 @@ impl ExprCollector<'_> { if let Some(self_param) = param_list.self_param().filter(|_| attr_enabled.next().unwrap_or(false)) { - let ptr = AstPtr::new(&self_param); - let binding_id: la_arena::Idx<Binding> = self.alloc_binding( - name![self], - BindingAnnotation::new( - self_param.mut_token().is_some() && self_param.amp_token().is_none(), - false, - ), - ); - let param_pat = - self.alloc_pat(Pat::Bind { id: binding_id, subpat: None }, Either::Right(ptr)); + let is_mutable = + self_param.mut_token().is_some() && self_param.amp_token().is_none(); + let ptr = AstPtr::new(&Either::Right(self_param)); + let binding_id: la_arena::Idx<Binding> = + self.alloc_binding(name![self], BindingAnnotation::new(is_mutable, false)); + let param_pat = self.alloc_pat(Pat::Bind { id: binding_id, subpat: None }, ptr); self.add_definition_to_binding(binding_id, param_pat); self.body.params.push(param_pat); } @@ -1260,8 +1256,8 @@ impl ExprCollector<'_> { (Some(id), Pat::Bind { id, subpat }) }; - let ptr = AstPtr::new(&pat); - let pat = self.alloc_pat(pattern, Either::Left(ptr)); + let ptr = AstPtr::new(&Either::Left(pat)); + let pat = self.alloc_pat(pattern, ptr); if let Some(binding_id) = binding { self.add_definition_to_binding(binding_id, pat); } @@ -1395,7 +1391,7 @@ impl ExprCollector<'_> { ast::Pat::MacroPat(mac) => match mac.macro_call() { Some(call) => { let macro_ptr = AstPtr::new(&call); - let src = self.expander.to_source(Either::Left(AstPtr::new(&pat))); + let src = self.expander.to_source(AstPtr::new(&Either::Left(pat))); let pat = self.collect_macro_call(call, macro_ptr, true, |this, expanded_pat| { this.collect_pat_opt(expanded_pat, binding_list) @@ -1430,8 +1426,8 @@ impl ExprCollector<'_> { Pat::Range { start, end } } }; - let ptr = AstPtr::new(&pat); - self.alloc_pat(pattern, Either::Left(ptr)) + let ptr = AstPtr::new(&Either::Left(pat)); + self.alloc_pat(pattern, ptr) } fn collect_pat_opt(&mut self, pat: Option<ast::Pat>, binding_list: &mut BindingList) -> PatId { diff --git a/src/tools/rust-analyzer/crates/hir-def/src/body/scope.rs b/src/tools/rust-analyzer/crates/hir-def/src/body/scope.rs index 2a90a09f25e..baca293e290 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/body/scope.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/body/scope.rs @@ -1,7 +1,6 @@ //! Name resolution for expressions. use hir_expand::name::Name; -use la_arena::{Arena, Idx, IdxRange, RawIdx}; -use rustc_hash::FxHashMap; +use la_arena::{Arena, ArenaMap, Idx, IdxRange, RawIdx}; use triomphe::Arc; use crate::{ @@ -17,7 +16,7 @@ pub type ScopeId = Idx<ScopeData>; pub struct ExprScopes { scopes: Arena<ScopeData>, scope_entries: Arena<ScopeEntry>, - scope_by_expr: FxHashMap<ExprId, ScopeId>, + scope_by_expr: ArenaMap<ExprId, ScopeId>, } #[derive(Debug, PartialEq, Eq)] @@ -77,10 +76,10 @@ impl ExprScopes { } pub fn scope_for(&self, expr: ExprId) -> Option<ScopeId> { - self.scope_by_expr.get(&expr).copied() + self.scope_by_expr.get(expr).copied() } - pub fn scope_by_expr(&self) -> &FxHashMap<ExprId, ScopeId> { + pub fn scope_by_expr(&self) -> &ArenaMap<ExprId, ScopeId> { &self.scope_by_expr } } @@ -94,7 +93,7 @@ impl ExprScopes { let mut scopes = ExprScopes { scopes: Arena::default(), scope_entries: Arena::default(), - scope_by_expr: FxHashMap::default(), + scope_by_expr: ArenaMap::with_capacity(body.exprs.len()), }; let mut root = scopes.root_scope(); scopes.add_params_bindings(body, root, &body.params); @@ -476,10 +475,7 @@ fn foo() { .pat_syntax(*body.bindings[resolved.binding()].definitions.first().unwrap()) .unwrap(); - let local_name = pat_src.value.either( - |it| it.syntax_node_ptr().to_node(file.syntax()), - |it| it.syntax_node_ptr().to_node(file.syntax()), - ); + let local_name = pat_src.value.syntax_node_ptr().to_node(file.syntax()); assert_eq!(local_name.text_range(), expected_name.syntax().text_range()); } diff --git a/src/tools/rust-analyzer/crates/hir-def/src/data.rs b/src/tools/rust-analyzer/crates/hir-def/src/data.rs index 68defa3858f..718f241cf78 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/data.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/data.rs @@ -15,9 +15,7 @@ use crate::{ attr::Attrs, db::DefDatabase, expander::{Expander, Mark}, - item_tree::{ - self, AssocItem, FnFlags, ItemTree, ItemTreeId, MacroCall, ModItem, Param, TreeId, - }, + item_tree::{self, AssocItem, FnFlags, ItemTree, ItemTreeId, MacroCall, ModItem, TreeId}, macro_call_as_call_id, macro_id_to_def_id, nameres::{ attr_resolution::ResolvedAttr, @@ -69,7 +67,7 @@ impl FunctionData { let is_varargs = enabled_params .clone() .next_back() - .map_or(false, |param| matches!(item_tree[param], Param::Varargs)); + .map_or(false, |param| item_tree[param].type_ref.is_none()); let mut flags = func.flags; if is_varargs { @@ -105,10 +103,7 @@ impl FunctionData { name: func.name.clone(), params: enabled_params .clone() - .filter_map(|id| match &item_tree[id] { - Param::Normal(ty) => Some(ty.clone()), - Param::Varargs => None, - }) + .filter_map(|id| item_tree[id].type_ref.clone()) .collect(), ret_type: func.ret_type.clone(), attrs: item_tree.attrs(db, krate, ModItem::from(loc.id.value).into()), diff --git a/src/tools/rust-analyzer/crates/hir-def/src/data/adt.rs b/src/tools/rust-analyzer/crates/hir-def/src/data/adt.rs index 224f7328f8c..b163112db91 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/data/adt.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/data/adt.rs @@ -11,7 +11,7 @@ use hir_expand::{ }; use intern::Interned; use la_arena::{Arena, ArenaMap}; -use rustc_abi::{Align, Integer, IntegerType, ReprFlags, ReprOptions}; +use rustc_dependencies::abi::{Align, Integer, IntegerType, ReprFlags, ReprOptions}; use syntax::ast::{self, HasName, HasVisibility}; use triomphe::Arc; diff --git a/src/tools/rust-analyzer/crates/hir-def/src/dyn_map.rs b/src/tools/rust-analyzer/crates/hir-def/src/dyn_map.rs index 63138aa6ad7..a59bbf7e221 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/dyn_map.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/dyn_map.rs @@ -29,8 +29,8 @@ use std::{ ops::{Index, IndexMut}, }; -use anymap::Map; use rustc_hash::FxHashMap; +use stdx::anymap::Map; pub struct Key<K, V, P = (K, V)> { _phantom: PhantomData<(K, V, P)>, diff --git a/src/tools/rust-analyzer/crates/hir-def/src/hir/format_args.rs b/src/tools/rust-analyzer/crates/hir-def/src/hir/format_args.rs index 75025a984fc..46d24bd4a61 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/hir/format_args.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/hir/format_args.rs @@ -2,7 +2,7 @@ use std::mem; use hir_expand::name::Name; -use rustc_parse_format as parse; +use rustc_dependencies::parse_format as parse; use syntax::{ ast::{self, IsString}, AstToken, SmolStr, TextRange, diff --git a/src/tools/rust-analyzer/crates/hir-def/src/import_map.rs b/src/tools/rust-analyzer/crates/hir-def/src/import_map.rs index 44b7f1b4f63..c0b507d3911 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/import_map.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/import_map.rs @@ -1,7 +1,6 @@ //! A map of all publicly exported items in a crate. -use std::collections::hash_map::Entry; -use std::{fmt, hash::BuildHasherDefault}; +use std::{collections::hash_map::Entry, fmt, hash::BuildHasherDefault}; use base_db::CrateId; use fst::{self, Streamer}; @@ -11,10 +10,12 @@ use itertools::Itertools; use rustc_hash::{FxHashMap, FxHashSet, FxHasher}; use triomphe::Arc; -use crate::item_scope::ImportOrExternCrate; use crate::{ - db::DefDatabase, item_scope::ItemInNs, nameres::DefMap, visibility::Visibility, AssocItemId, - ModuleDefId, ModuleId, TraitId, + db::DefDatabase, + item_scope::{ImportOrExternCrate, ItemInNs}, + nameres::DefMap, + visibility::Visibility, + AssocItemId, ModuleDefId, ModuleId, TraitId, }; type FxIndexMap<K, V> = IndexMap<K, V, BuildHasherDefault<FxHasher>>; @@ -94,7 +95,7 @@ fn collect_import_map(db: &dyn DefDatabase, krate: CrateId) -> FxIndexMap<ItemIn // We look only into modules that are public(ly reexported), starting with the crate root. let root = def_map.module_id(DefMap::ROOT); - let mut worklist = vec![(root, 0)]; + let mut worklist = vec![(root, 0u32)]; // Records items' minimum module depth. let mut depth_map = FxHashMap::default(); @@ -278,6 +279,8 @@ enum SearchMode { /// Import map entry should contain all letters from the query string, /// in the same order, but not necessary adjacent. Fuzzy, + /// Import map entry should match the query string by prefix. + Prefix, } /// Three possible ways to search for the name in associated and/or other items. @@ -319,6 +322,14 @@ impl Query { Self { search_mode: SearchMode::Fuzzy, ..self } } + pub fn prefix(self) -> Self { + Self { search_mode: SearchMode::Prefix, ..self } + } + + pub fn exact(self) -> Self { + Self { search_mode: SearchMode::Exact, ..self } + } + /// Specifies whether we want to include associated items in the result. pub fn assoc_search_mode(self, assoc_mode: AssocSearchMode) -> Self { Self { assoc_mode, ..self } @@ -356,7 +367,8 @@ impl Query { let query_string = if case_insensitive { &self.lowercased } else { &self.query }; match self.search_mode { - SearchMode::Exact => &input == query_string, + SearchMode::Exact => input == *query_string, + SearchMode::Prefix => input.starts_with(query_string), SearchMode::Fuzzy => { let mut input_chars = input.chars(); for query_char in query_string.chars() { diff --git a/src/tools/rust-analyzer/crates/hir-def/src/item_tree.rs b/src/tools/rust-analyzer/crates/hir-def/src/item_tree.rs index 4c812b62a46..3c4f21d5c69 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/item_tree.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/item_tree.rs @@ -613,10 +613,17 @@ pub struct Function { pub(crate) flags: FnFlags, } -#[derive(Debug, Clone, Eq, PartialEq)] -pub enum Param { - Normal(Interned<TypeRef>), - Varargs, +#[derive(Debug, Clone, PartialEq, Eq)] +pub struct Param { + /// This is [`None`] for varargs + pub type_ref: Option<Interned<TypeRef>>, + pub ast_id: ParamAstId, +} + +#[derive(Debug, Clone, PartialEq, Eq)] +pub enum ParamAstId { + Param(FileAstId<ast::Param>), + SelfParam(FileAstId<ast::SelfParam>), } bitflags::bitflags! { diff --git a/src/tools/rust-analyzer/crates/hir-def/src/item_tree/lower.rs b/src/tools/rust-analyzer/crates/hir-def/src/item_tree/lower.rs index e4702c113b8..c0a880a64bb 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/item_tree/lower.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/item_tree/lower.rs @@ -295,8 +295,12 @@ impl<'a> Ctx<'a> { } } }; - let ty = Interned::new(self_type); - let idx = self.data().params.alloc(Param::Normal(ty)); + let type_ref = Interned::new(self_type); + let ast_id = self.source_ast_id_map.ast_id(&self_param); + let idx = self.data().params.alloc(Param { + type_ref: Some(type_ref), + ast_id: ParamAstId::SelfParam(ast_id), + }); self.add_attrs( idx.into(), RawAttrs::new(self.db.upcast(), &self_param, self.hygiene()), @@ -305,11 +309,19 @@ impl<'a> Ctx<'a> { } for param in param_list.params() { let idx = match param.dotdotdot_token() { - Some(_) => self.data().params.alloc(Param::Varargs), + Some(_) => { + let ast_id = self.source_ast_id_map.ast_id(¶m); + self.data() + .params + .alloc(Param { type_ref: None, ast_id: ParamAstId::Param(ast_id) }) + } None => { let type_ref = TypeRef::from_ast_opt(&self.body_ctx, param.ty()); let ty = Interned::new(type_ref); - self.data().params.alloc(Param::Normal(ty)) + let ast_id = self.source_ast_id_map.ast_id(¶m); + self.data() + .params + .alloc(Param { type_ref: Some(ty), ast_id: ParamAstId::Param(ast_id) }) } }; self.add_attrs(idx.into(), RawAttrs::new(self.db.upcast(), ¶m, self.hygiene())); diff --git a/src/tools/rust-analyzer/crates/hir-def/src/item_tree/pretty.rs b/src/tools/rust-analyzer/crates/hir-def/src/item_tree/pretty.rs index 417bd37c8a9..5036c2b8829 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/item_tree/pretty.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/item_tree/pretty.rs @@ -261,15 +261,15 @@ impl Printer<'_> { self.indented(|this| { for param in params.clone() { this.print_attrs_of(param, "\n"); - match &this.tree[param] { - Param::Normal(ty) => { + match &this.tree[param].type_ref { + Some(ty) => { if flags.contains(FnFlags::HAS_SELF_PARAM) { w!(this, "self: "); } this.print_type_ref(ty); wln!(this, ","); } - Param::Varargs => { + None => { wln!(this, "..."); } }; diff --git a/src/tools/rust-analyzer/crates/hir-def/src/lib.rs b/src/tools/rust-analyzer/crates/hir-def/src/lib.rs index 3f87fe62b83..495e2d47697 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/lib.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/lib.rs @@ -8,6 +8,7 @@ //! actually true. #![warn(rust_2018_idioms, unused_lifetimes, semicolon_in_expressions_from_macros)] +#![cfg_attr(feature = "in-rust-tree", feature(rustc_private))] #[allow(unused)] macro_rules! eprintln { @@ -48,7 +49,7 @@ pub mod visibility; pub mod find_path; pub mod import_map; -pub use rustc_abi as layout; +pub use rustc_dependencies::abi as layout; use triomphe::Arc; #[cfg(test)] @@ -72,6 +73,7 @@ use hir_expand::{ db::ExpandDatabase, eager::expand_eager_macro_input, hygiene::Hygiene, + name::Name, proc_macro::ProcMacroExpander, AstId, ExpandError, ExpandResult, ExpandTo, HirFileId, InFile, MacroCallId, MacroCallKind, MacroDefId, MacroDefKind, UnresolvedMacro, @@ -173,6 +175,18 @@ impl ModuleId { self.krate } + pub fn name(self, db: &dyn db::DefDatabase) -> Option<Name> { + let def_map = self.def_map(db); + let parent = def_map[self.local_id].parent?; + def_map[parent].children.iter().find_map(|(name, module_id)| { + if *module_id == self.local_id { + Some(name.clone()) + } else { + None + } + }) + } + pub fn containing_module(self, db: &dyn db::DefDatabase) -> Option<ModuleId> { self.def_map(db).containing_module(self.local_id) } @@ -498,10 +512,7 @@ impl_from!(Macro2Id, MacroRulesId, ProcMacroId for MacroId); impl MacroId { pub fn is_attribute(self, db: &dyn db::DefDatabase) -> bool { - match self { - MacroId::ProcMacroId(it) => it.lookup(db).kind == ProcMacroKind::Attr, - _ => false, - } + matches!(self, MacroId::ProcMacroId(it) if it.lookup(db).kind == ProcMacroKind::Attr) } } diff --git a/src/tools/rust-analyzer/crates/hir-expand/src/ast_id_map.rs b/src/tools/rust-analyzer/crates/hir-expand/src/ast_id_map.rs index 1906ed15bae..40726505491 100644 --- a/src/tools/rust-analyzer/crates/hir-expand/src/ast_id_map.rs +++ b/src/tools/rust-analyzer/crates/hir-expand/src/ast_id_map.rs @@ -99,7 +99,7 @@ register_ast_id_node! { TraitAlias, TypeAlias, Use, - AssocItem, BlockExpr, Variant, RecordField, TupleField, ConstArg + AssocItem, BlockExpr, Variant, RecordField, TupleField, ConstArg, Param, SelfParam } /// Maps items' `SyntaxNode`s to `ErasedFileAstId`s and back. diff --git a/src/tools/rust-analyzer/crates/hir-expand/src/db.rs b/src/tools/rust-analyzer/crates/hir-expand/src/db.rs index 5292a5fa1b1..204227e3387 100644 --- a/src/tools/rust-analyzer/crates/hir-expand/src/db.rs +++ b/src/tools/rust-analyzer/crates/hir-expand/src/db.rs @@ -12,11 +12,15 @@ use syntax::{ use triomphe::Arc; use crate::{ - ast_id_map::AstIdMap, builtin_attr_macro::pseudo_derive_attr_expansion, - builtin_fn_macro::EagerExpander, fixup, hygiene::HygieneFrame, tt, AstId, BuiltinAttrExpander, - BuiltinDeriveExpander, BuiltinFnLikeExpander, EagerCallInfo, ExpandError, ExpandResult, - ExpandTo, HirFileId, HirFileIdRepr, MacroCallId, MacroCallKind, MacroCallLoc, MacroDefId, - MacroDefKind, MacroFile, ProcMacroExpander, + ast_id_map::AstIdMap, + builtin_attr_macro::pseudo_derive_attr_expansion, + builtin_fn_macro::EagerExpander, + fixup, + hygiene::HygieneFrame, + name::{name, AsName}, + tt, AstId, BuiltinAttrExpander, BuiltinDeriveExpander, BuiltinFnLikeExpander, EagerCallInfo, + ExpandError, ExpandResult, ExpandTo, HirFileId, HirFileIdRepr, MacroCallId, MacroCallKind, + MacroCallLoc, MacroDefId, MacroDefKind, MacroFile, ProcMacroExpander, }; /// Total limit on the number of tokens produced by any macro invocation. @@ -614,9 +618,25 @@ fn macro_expand(db: &dyn ExpandDatabase, id: MacroCallId) -> ExpandResult<Arc<tt err = error.clone().or(err); } - // Set a hard limit for the expanded tt - if let Err(value) = check_tt_count(&tt) { - return value; + // Skip checking token tree limit for include! macro call + let skip_check_tt_count = match loc.kind { + MacroCallKind::FnLike { ast_id, expand_to: _ } => { + if let Some(name_ref) = + ast_id.to_node(db).path().and_then(|p| p.segment()).and_then(|s| s.name_ref()) + { + name_ref.as_name() == name!(include) + } else { + false + } + } + _ => false, + }; + + if !skip_check_tt_count { + // Set a hard limit for the expanded tt + if let Err(value) = check_tt_count(&tt) { + return value; + } } ExpandResult { value: Arc::new(tt), err } diff --git a/src/tools/rust-analyzer/crates/hir-ty/Cargo.toml b/src/tools/rust-analyzer/crates/hir-ty/Cargo.toml index b95ae05ccd4..c30807ad884 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/Cargo.toml +++ b/src/tools/rust-analyzer/crates/hir-ty/Cargo.toml @@ -23,17 +23,17 @@ oorandom = "11.1.3" tracing = "0.1.35" rustc-hash = "1.1.0" scoped-tls = "1.0.0" -chalk-solve = { version = "0.92.0", default-features = false } -chalk-ir = "0.92.0" -chalk-recursive = { version = "0.92.0", default-features = false } -chalk-derive = "0.92.0" +chalk-solve = { version = "0.93.0", default-features = false } +chalk-ir = "0.93.0" +chalk-recursive = { version = "0.93.0", default-features = false } +chalk-derive = "0.93.0" la-arena.workspace = true once_cell = "1.17.0" triomphe.workspace = true nohash-hasher.workspace = true typed-arena = "2.0.1" -rustc_index.workspace = true +rustc-dependencies.workspace = true # local deps stdx.workspace = true @@ -56,3 +56,6 @@ project-model = { path = "../project-model" } # local deps test-utils.workspace = true + +[features] +in-rust-tree = ["rustc-dependencies/in-rust-tree"] diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/consteval/tests.rs b/src/tools/rust-analyzer/crates/hir-ty/src/consteval/tests.rs index 7ad3659a4f6..b395e7f4a81 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/consteval/tests.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/consteval/tests.rs @@ -1159,6 +1159,20 @@ fn pattern_matching_slice() { "#, 33213, ); + check_number( + r#" + //- minicore: slice, index, coerce_unsized, copy + const fn f(mut slice: &[u32]) -> usize { + slice = match slice { + [0, rest @ ..] | rest => rest, + }; + slice.len() + } + const GOAL: usize = f(&[]) + f(&[10]) + f(&[0, 100]) + + f(&[1000, 1000, 1000]) + f(&[0, 57, 34, 46, 10000, 10000]); + "#, + 10, + ); } #[test] diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/decl_check.rs b/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/decl_check.rs index 36d69edf9d5..b432588b230 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/decl_check.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/decl_check.rs @@ -9,6 +9,7 @@ //! - constants (e.g. `const FOO: u8 = 10;`) //! - static items (e.g. `static FOO: u8 = 10;`) //! - match arm bindings (e.g. `foo @ Some(_)`) +//! - modules (e.g. `mod foo { ... }` or `mod foo;`) mod case_conv; @@ -19,7 +20,7 @@ use hir_def::{ hir::{Pat, PatId}, src::HasSource, AdtId, AttrDefId, ConstId, DefWithBodyId, EnumId, EnumVariantId, FunctionId, ItemContainerId, - Lookup, ModuleDefId, StaticId, StructId, + Lookup, ModuleDefId, ModuleId, StaticId, StructId, }; use hir_expand::{ name::{AsName, Name}, @@ -83,6 +84,7 @@ pub enum IdentType { Structure, Variable, Variant, + Module, } impl fmt::Display for IdentType { @@ -97,6 +99,7 @@ impl fmt::Display for IdentType { IdentType::Structure => "Structure", IdentType::Variable => "Variable", IdentType::Variant => "Variant", + IdentType::Module => "Module", }; repr.fmt(f) @@ -132,6 +135,7 @@ impl<'a> DeclValidator<'a> { pub(super) fn validate_item(&mut self, item: ModuleDefId) { match item { + ModuleDefId::ModuleId(module_id) => self.validate_module(module_id), ModuleDefId::FunctionId(func) => self.validate_func(func), ModuleDefId::AdtId(adt) => self.validate_adt(adt), ModuleDefId::ConstId(const_id) => self.validate_const(const_id), @@ -230,6 +234,55 @@ impl<'a> DeclValidator<'a> { || parent() } + fn validate_module(&mut self, module_id: ModuleId) { + // Check whether non-snake case identifiers are allowed for this module. + if self.allowed(module_id.into(), allow::NON_SNAKE_CASE, false) { + return; + } + + // Check the module name. + let Some(module_name) = module_id.name(self.db.upcast()) else { return }; + let module_name_replacement = + module_name.as_str().and_then(to_lower_snake_case).map(|new_name| Replacement { + current_name: module_name, + suggested_text: new_name, + expected_case: CaseType::LowerSnakeCase, + }); + + if let Some(module_name_replacement) = module_name_replacement { + let module_data = &module_id.def_map(self.db.upcast())[module_id.local_id]; + let module_src = module_data.declaration_source(self.db.upcast()); + + if let Some(module_src) = module_src { + let ast_ptr = match module_src.value.name() { + Some(name) => name, + None => { + never!( + "Replacement ({:?}) was generated for a module without a name: {:?}", + module_name_replacement, + module_src + ); + return; + } + }; + + let diagnostic = IncorrectCase { + file: module_src.file_id, + ident_type: IdentType::Module, + ident: AstPtr::new(&ast_ptr), + expected_case: module_name_replacement.expected_case, + ident_text: module_name_replacement + .current_name + .display(self.db.upcast()) + .to_string(), + suggested_text: module_name_replacement.suggested_text, + }; + + self.sink.push(diagnostic); + } + } + } + fn validate_func(&mut self, func: FunctionId) { let data = self.db.function_data(func); if matches!(func.lookup(self.db.upcast()).container, ItemContainerId::ExternBlockId(_)) { @@ -336,48 +389,44 @@ impl<'a> DeclValidator<'a> { for (id, replacement) in pats_replacements { if let Ok(source_ptr) = source_map.pat_syntax(id) { - if let Some(expr) = source_ptr.value.as_ref().left() { + if let Some(ptr) = source_ptr.value.clone().cast::<ast::IdentPat>() { let root = source_ptr.file_syntax(self.db.upcast()); - if let ast::Pat::IdentPat(ident_pat) = expr.to_node(&root) { - let parent = match ident_pat.syntax().parent() { - Some(parent) => parent, - None => continue, - }; - let name_ast = match ident_pat.name() { - Some(name_ast) => name_ast, - None => continue, - }; + let ident_pat = ptr.to_node(&root); + let parent = match ident_pat.syntax().parent() { + Some(parent) => parent, + None => continue, + }; + let name_ast = match ident_pat.name() { + Some(name_ast) => name_ast, + None => continue, + }; + + let is_param = ast::Param::can_cast(parent.kind()); + + // We have to check that it's either `let var = ...` or `var @ Variant(_)` statement, + // because e.g. match arms are patterns as well. + // In other words, we check that it's a named variable binding. + let is_binding = ast::LetStmt::can_cast(parent.kind()) + || (ast::MatchArm::can_cast(parent.kind()) + && ident_pat.at_token().is_some()); + if !(is_param || is_binding) { + // This pattern is not an actual variable declaration, e.g. `Some(val) => {..}` match arm. + continue; + } - let is_param = ast::Param::can_cast(parent.kind()); - - // We have to check that it's either `let var = ...` or `var @ Variant(_)` statement, - // because e.g. match arms are patterns as well. - // In other words, we check that it's a named variable binding. - let is_binding = ast::LetStmt::can_cast(parent.kind()) - || (ast::MatchArm::can_cast(parent.kind()) - && ident_pat.at_token().is_some()); - if !(is_param || is_binding) { - // This pattern is not an actual variable declaration, e.g. `Some(val) => {..}` match arm. - continue; - } + let ident_type = + if is_param { IdentType::Parameter } else { IdentType::Variable }; - let ident_type = - if is_param { IdentType::Parameter } else { IdentType::Variable }; - - let diagnostic = IncorrectCase { - file: source_ptr.file_id, - ident_type, - ident: AstPtr::new(&name_ast), - expected_case: replacement.expected_case, - ident_text: replacement - .current_name - .display(self.db.upcast()) - .to_string(), - suggested_text: replacement.suggested_text, - }; + let diagnostic = IncorrectCase { + file: source_ptr.file_id, + ident_type, + ident: AstPtr::new(&name_ast), + expected_case: replacement.expected_case, + ident_text: replacement.current_name.display(self.db.upcast()).to_string(), + suggested_text: replacement.suggested_text, + }; - self.sink.push(diagnostic); - } + self.sink.push(diagnostic); } } } diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/decl_check/case_conv.rs b/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/decl_check/case_conv.rs index 2c136896209..cbe1af15703 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/decl_check/case_conv.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/decl_check/case_conv.rs @@ -11,50 +11,7 @@ pub(crate) fn to_camel_case(ident: &str) -> Option<String> { return None; } - // Taken from rustc. - let ret = ident - .trim_matches('_') - .split('_') - .filter(|component| !component.is_empty()) - .map(|component| { - let mut camel_cased_component = String::with_capacity(component.len()); - - let mut new_word = true; - let mut prev_is_lower_case = true; - - for c in component.chars() { - // Preserve the case if an uppercase letter follows a lowercase letter, so that - // `camelCase` is converted to `CamelCase`. - if prev_is_lower_case && c.is_uppercase() { - new_word = true; - } - - if new_word { - camel_cased_component.extend(c.to_uppercase()); - } else { - camel_cased_component.extend(c.to_lowercase()); - } - - prev_is_lower_case = c.is_lowercase(); - new_word = false; - } - - camel_cased_component - }) - .fold((String::new(), None), |(acc, prev): (_, Option<String>), next| { - // separate two components with an underscore if their boundary cannot - // be distinguished using an uppercase/lowercase case distinction - let join = prev - .and_then(|prev| { - let f = next.chars().next()?; - let l = prev.chars().last()?; - Some(!char_has_case(l) && !char_has_case(f)) - }) - .unwrap_or(false); - (acc + if join { "_" } else { "" } + &next, Some(next)) - }) - .0; - Some(ret) + Some(stdx::to_camel_case(ident)) } /// Converts an identifier to a lower_snake_case form. @@ -97,7 +54,9 @@ fn is_camel_case(name: &str) -> bool { && !name.chars().any(|snd| { let ret = match fst { None => false, - Some(fst) => char_has_case(fst) && snd == '_' || char_has_case(snd) && fst == '_', + Some(fst) => { + stdx::char_has_case(fst) && snd == '_' || stdx::char_has_case(snd) && fst == '_' + } }; fst = Some(snd); @@ -135,11 +94,6 @@ fn is_snake_case<F: Fn(char) -> bool>(ident: &str, wrong_case: F) -> bool { }) } -// Taken from rustc. -fn char_has_case(c: char) -> bool { - c.is_lowercase() || c.is_uppercase() -} - #[cfg(test)] mod tests { use super::*; diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/match_check.rs b/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/match_check.rs index f8cdeaa5e35..2e04bbfee83 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/match_check.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/match_check.rs @@ -147,7 +147,7 @@ impl<'a> PatCtxt<'a> { } hir_def::hir::Pat::Bind { id, subpat, .. } => { - let bm = self.infer.binding_modes[id]; + let bm = self.infer.binding_modes[pat]; ty = &self.infer[id]; let name = &self.body.bindings[id].name; match (bm, ty.kind(Interner)) { diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs index 78d3c667a1f..3d5ed1f93c0 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer.rs @@ -420,7 +420,19 @@ pub struct InferenceResult { standard_types: InternedStandardTypes, /// Stores the types which were implicitly dereferenced in pattern binding modes. pub pat_adjustments: FxHashMap<PatId, Vec<Ty>>, - pub binding_modes: ArenaMap<BindingId, BindingMode>, + /// Stores the binding mode (`ref` in `let ref x = 2`) of bindings. + /// + /// This one is tied to the `PatId` instead of `BindingId`, because in some rare cases, a binding in an + /// or pattern can have multiple binding modes. For example: + /// ``` + /// fn foo(mut slice: &[u32]) -> usize { + /// slice = match slice { + /// [0, rest @ ..] | rest => rest, + /// }; + /// } + /// ``` + /// the first `rest` has implicit `ref` binding mode, but the second `rest` binding mode is `move`. + pub binding_modes: ArenaMap<PatId, BindingMode>, pub expr_adjustments: FxHashMap<ExprId, Vec<Adjustment>>, pub(crate) closure_info: FxHashMap<ClosureId, (Vec<CapturedItem>, FnTrait)>, // FIXME: remove this field diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer/closure.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer/closure.rs index 13d6b5643ac..0805e20447a 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer/closure.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer/closure.rs @@ -679,7 +679,7 @@ impl InferenceContext<'_> { | Pat::Range { .. } => { update_result(CaptureKind::ByRef(BorrowKind::Shared)); } - Pat::Bind { id, .. } => match self.result.binding_modes[*id] { + Pat::Bind { id, .. } => match self.result.binding_modes[p] { crate::BindingMode::Move => { if self.is_ty_copy(self.result.type_of_binding[*id].clone()) { update_result(CaptureKind::ByRef(BorrowKind::Shared)); @@ -838,8 +838,8 @@ impl InferenceContext<'_> { | Pat::ConstBlock(_) | Pat::Path(_) | Pat::Lit(_) => self.consume_place(place, pat.into()), - Pat::Bind { id, subpat: _ } => { - let mode = self.result.binding_modes[*id]; + Pat::Bind { id: _, subpat: _ } => { + let mode = self.result.binding_modes[pat]; let capture_kind = match mode { BindingMode::Move => { self.consume_place(place, pat.into()); diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer/pat.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer/pat.rs index 4e28ec06023..7ff12e5b7f8 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer/pat.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer/pat.rs @@ -421,7 +421,7 @@ impl InferenceContext<'_> { } else { BindingMode::convert(mode) }; - self.result.binding_modes.insert(binding, mode); + self.result.binding_modes.insert(pat, mode); let inner_ty = match subpat { Some(subpat) => self.infer_pat(subpat, &expected, default_bm), diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs b/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs index 1a6106c0244..603e58f9d46 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs @@ -9,6 +9,10 @@ use hir_def::{ LocalEnumVariantId, LocalFieldId, StructId, }; use la_arena::{Idx, RawIdx}; +use rustc_dependencies::{ + abi::AddressSpace, + index::{IndexSlice, IndexVec}, +}; use stdx::never; use triomphe::Arc; @@ -34,7 +38,7 @@ mod target; #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)] pub struct RustcEnumVariantIdx(pub LocalEnumVariantId); -impl rustc_index::vec::Idx for RustcEnumVariantIdx { +impl rustc_dependencies::index::Idx for RustcEnumVariantIdx { fn new(idx: usize) -> Self { RustcEnumVariantIdx(Idx::from_raw(RawIdx::from(idx as u32))) } @@ -44,9 +48,28 @@ impl rustc_index::vec::Idx for RustcEnumVariantIdx { } } -pub type Layout = LayoutS<RustcEnumVariantIdx>; +#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)] +pub struct RustcFieldIdx(pub LocalFieldId); + +impl RustcFieldIdx { + pub fn new(idx: usize) -> Self { + RustcFieldIdx(Idx::from_raw(RawIdx::from(idx as u32))) + } +} + +impl rustc_dependencies::index::Idx for RustcFieldIdx { + fn new(idx: usize) -> Self { + RustcFieldIdx(Idx::from_raw(RawIdx::from(idx as u32))) + } + + fn index(self) -> usize { + u32::from(self.0.into_raw()) as usize + } +} + +pub type Layout = LayoutS<RustcFieldIdx, RustcEnumVariantIdx>; pub type TagEncoding = hir_def::layout::TagEncoding<RustcEnumVariantIdx>; -pub type Variants = hir_def::layout::Variants<RustcEnumVariantIdx>; +pub type Variants = hir_def::layout::Variants<RustcFieldIdx, RustcEnumVariantIdx>; #[derive(Debug, PartialEq, Eq, Clone)] pub enum LayoutError { @@ -66,7 +89,7 @@ struct LayoutCx<'a> { impl<'a> LayoutCalculator for LayoutCx<'a> { type TargetDataLayoutRef = &'a TargetDataLayout; - fn delay_bug(&self, txt: &str) { + fn delay_bug(&self, txt: String) { never!("{}", txt); } @@ -145,6 +168,8 @@ fn layout_of_simd_ty( largest_niche: e_ly.largest_niche, size, align, + max_repr_align: None, + unadjusted_abi_align: align.abi, })) } @@ -230,7 +255,7 @@ pub fn layout_of_ty_query( .map(|k| db.layout_of_ty(k.assert_ty_ref(Interner).clone(), trait_env.clone())) .collect::<Result<Vec<_>, _>>()?; let fields = fields.iter().map(|it| &**it).collect::<Vec<_>>(); - let fields = fields.iter().collect::<Vec<_>>(); + let fields = fields.iter().collect::<IndexVec<_, _>>(); cx.univariant(dl, &fields, &ReprOptions::default(), kind).ok_or(LayoutError::Unknown)? } TyKind::Array(element, count) => { @@ -255,6 +280,8 @@ pub fn layout_of_ty_query( largest_niche, align: element.align, size, + max_repr_align: None, + unadjusted_abi_align: element.align.abi, } } TyKind::Slice(element) => { @@ -266,11 +293,23 @@ pub fn layout_of_ty_query( largest_niche: None, align: element.align, size: Size::ZERO, + max_repr_align: None, + unadjusted_abi_align: element.align.abi, } } + TyKind::Str => Layout { + variants: Variants::Single { index: struct_variant_idx() }, + fields: FieldsShape::Array { stride: Size::from_bytes(1), count: 0 }, + abi: Abi::Aggregate { sized: false }, + largest_niche: None, + align: dl.i8_align, + size: Size::ZERO, + max_repr_align: None, + unadjusted_abi_align: dl.i8_align.abi, + }, // Potentially-wide pointers. TyKind::Ref(_, _, pointee) | TyKind::Raw(_, pointee) => { - let mut data_ptr = scalar_unit(dl, Primitive::Pointer); + let mut data_ptr = scalar_unit(dl, Primitive::Pointer(AddressSpace::DATA)); if matches!(ty.kind(Interner), TyKind::Ref(..)) { data_ptr.valid_range_mut().start = 1; } @@ -294,7 +333,7 @@ pub fn layout_of_ty_query( scalar_unit(dl, Primitive::Int(dl.ptr_sized_integer(), false)) } TyKind::Dyn(..) => { - let mut vtable = scalar_unit(dl, Primitive::Pointer); + let mut vtable = scalar_unit(dl, Primitive::Pointer(AddressSpace::DATA)); vtable.valid_range_mut().start = 1; vtable } @@ -308,22 +347,7 @@ pub fn layout_of_ty_query( cx.scalar_pair(data_ptr, metadata) } TyKind::FnDef(_, _) => layout_of_unit(&cx, dl)?, - TyKind::Str => Layout { - variants: Variants::Single { index: struct_variant_idx() }, - fields: FieldsShape::Array { stride: Size::from_bytes(1), count: 0 }, - abi: Abi::Aggregate { sized: false }, - largest_niche: None, - align: dl.i8_align, - size: Size::ZERO, - }, - TyKind::Never => Layout { - variants: Variants::Single { index: struct_variant_idx() }, - fields: FieldsShape::Primitive, - abi: Abi::Uninhabited, - largest_niche: None, - align: dl.i8_align, - size: Size::ZERO, - }, + TyKind::Never => cx.layout_of_never_type(), TyKind::Dyn(_) | TyKind::Foreign(_) => { let mut unit = layout_of_unit(&cx, dl)?; match unit.abi { @@ -333,7 +357,7 @@ pub fn layout_of_ty_query( unit } TyKind::Function(_) => { - let mut ptr = scalar_unit(dl, Primitive::Pointer); + let mut ptr = scalar_unit(dl, Primitive::Pointer(dl.instruction_address_space)); ptr.valid_range_mut().start = 1; Layout::scalar(dl, ptr) } @@ -363,7 +387,7 @@ pub fn layout_of_ty_query( }) .collect::<Result<Vec<_>, _>>()?; let fields = fields.iter().map(|it| &**it).collect::<Vec<_>>(); - let fields = fields.iter().collect::<Vec<_>>(); + let fields = fields.iter().collect::<IndexVec<_, _>>(); cx.univariant(dl, &fields, &ReprOptions::default(), StructKind::AlwaysSized) .ok_or(LayoutError::Unknown)? } @@ -398,9 +422,9 @@ pub fn layout_of_ty_recover( } fn layout_of_unit(cx: &LayoutCx<'_>, dl: &TargetDataLayout) -> Result<Layout, LayoutError> { - cx.univariant::<RustcEnumVariantIdx, &&Layout>( + cx.univariant::<RustcFieldIdx, RustcEnumVariantIdx, &&Layout>( dl, - &[], + IndexSlice::empty(), &ReprOptions::default(), StructKind::AlwaysSized, ) diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/layout/adt.rs b/src/tools/rust-analyzer/crates/hir-ty/src/layout/adt.rs index 85ef649b895..5e713c17cf8 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/layout/adt.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/layout/adt.rs @@ -8,6 +8,7 @@ use hir_def::{ AdtId, EnumVariantId, LocalEnumVariantId, VariantId, }; use la_arena::RawIdx; +use rustc_dependencies::index::IndexVec; use smallvec::SmallVec; use triomphe::Arc; @@ -20,8 +21,8 @@ use crate::{ use super::LayoutCx; -pub(crate) fn struct_variant_idx() -> RustcEnumVariantIdx { - RustcEnumVariantIdx(LocalEnumVariantId::from_raw(RawIdx::from(0))) +pub(crate) const fn struct_variant_idx() -> RustcEnumVariantIdx { + RustcEnumVariantIdx(LocalEnumVariantId::from_raw(RawIdx::from_u32(0))) } pub fn layout_of_adt_query( @@ -74,7 +75,7 @@ pub fn layout_of_adt_query( .iter() .map(|it| it.iter().map(|it| &**it).collect::<Vec<_>>()) .collect::<SmallVec<[_; 1]>>(); - let variants = variants.iter().map(|it| it.iter().collect()).collect(); + let variants = variants.iter().map(|it| it.iter().collect()).collect::<IndexVec<_, _>>(); let result = if matches!(def, AdtId::UnionId(..)) { cx.layout_of_union(&repr, &variants).ok_or(LayoutError::Unknown)? } else { @@ -105,7 +106,7 @@ pub fn layout_of_adt_query( && variants .iter() .next() - .and_then(|it| it.last().map(|it| !it.is_unsized())) + .and_then(|it| it.iter().last().map(|it| !it.is_unsized())) .unwrap_or(true), ) .ok_or(LayoutError::SizeOverflow)? @@ -119,7 +120,15 @@ fn layout_scalar_valid_range(db: &dyn HirDatabase, def: AdtId) -> (Bound<u128>, let attr = attrs.by_key(name).tt_values(); for tree in attr { if let Some(it) = tree.token_trees.first() { - if let Ok(it) = it.to_string().parse() { + let text = it.to_string().replace('_', ""); + let (text, base) = match text.as_bytes() { + [b'0', b'x', ..] => (&text[2..], 16), + [b'0', b'o', ..] => (&text[2..], 8), + [b'0', b'b', ..] => (&text[2..], 2), + _ => (&*text, 10), + }; + + if let Ok(it) = u128::from_str_radix(text, base) { return Bound::Included(it); } } diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/layout/tests/closure.rs b/src/tools/rust-analyzer/crates/hir-ty/src/layout/tests/closure.rs index bbe855a14de..939025461f3 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/layout/tests/closure.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/layout/tests/closure.rs @@ -186,9 +186,9 @@ fn capture_specific_fields() { fn match_pattern() { size_and_align_expr! { struct X(i64, i32, (u8, i128)); - let y: X = X(2, 5, (7, 3)); + let _y: X = X(2, 5, (7, 3)); move |x: i64| { - match y { + match _y { _ => x, } } diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/lib.rs b/src/tools/rust-analyzer/crates/hir-ty/src/lib.rs index 405bb001b5d..c14339f6afe 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/lib.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/lib.rs @@ -1,6 +1,7 @@ //! The type system. We currently use this to infer types for completion, hover //! information and various assists. #![warn(rust_2018_idioms, unused_lifetimes, semicolon_in_expressions_from_macros)] +#![cfg_attr(feature = "in-rust-tree", feature(rustc_private))] #[allow(unused)] macro_rules! eprintln { diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/mir.rs b/src/tools/rust-analyzer/crates/hir-ty/src/mir.rs index e953058ccca..747ca54858c 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir.rs @@ -243,16 +243,16 @@ impl Default for ProjectionStore { } impl ProjectionStore { - fn shrink_to_fit(&mut self) { + pub fn shrink_to_fit(&mut self) { self.id_to_proj.shrink_to_fit(); self.proj_to_id.shrink_to_fit(); } - fn intern_if_exist(&self, projection: &[PlaceElem]) -> Option<ProjectionId> { + pub fn intern_if_exist(&self, projection: &[PlaceElem]) -> Option<ProjectionId> { self.proj_to_id.get(projection).copied() } - fn intern(&mut self, projection: Box<[PlaceElem]>) -> ProjectionId { + pub fn intern(&mut self, projection: Box<[PlaceElem]>) -> ProjectionId { let new_id = ProjectionId(self.proj_to_id.len() as u32); match self.proj_to_id.entry(projection) { Entry::Occupied(id) => *id.get(), @@ -267,20 +267,20 @@ impl ProjectionStore { } impl ProjectionId { - const EMPTY: ProjectionId = ProjectionId(0); + pub const EMPTY: ProjectionId = ProjectionId(0); - fn lookup(self, store: &ProjectionStore) -> &[PlaceElem] { + pub fn lookup(self, store: &ProjectionStore) -> &[PlaceElem] { store.id_to_proj.get(&self).unwrap() } - fn project(self, projection: PlaceElem, store: &mut ProjectionStore) -> ProjectionId { + pub fn project(self, projection: PlaceElem, store: &mut ProjectionStore) -> ProjectionId { let mut current = self.lookup(store).to_vec(); current.push(projection); store.intern(current.into()) } } -#[derive(Debug, Clone, PartialEq, Eq, Hash)] +#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)] pub struct Place { pub local: LocalId, pub projection: ProjectionId, @@ -1007,7 +1007,7 @@ pub enum Rvalue { #[derive(Debug, PartialEq, Eq, Clone)] pub enum StatementKind { Assign(Place, Rvalue), - //FakeRead(Box<(FakeReadCause, Place)>), + FakeRead(Place), //SetDiscriminant { // place: Box<Place>, // variant_index: VariantIdx, @@ -1109,7 +1109,9 @@ impl MirBody { } } } - StatementKind::Deinit(p) => f(p, &mut self.projection_store), + StatementKind::FakeRead(p) | StatementKind::Deinit(p) => { + f(p, &mut self.projection_store) + } StatementKind::StorageLive(_) | StatementKind::StorageDead(_) | StatementKind::Nop => (), diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/mir/borrowck.rs b/src/tools/rust-analyzer/crates/hir-ty/src/mir/borrowck.rs index 41fb129652a..74c5efd6c3f 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir/borrowck.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir/borrowck.rs @@ -24,6 +24,7 @@ use super::{ pub enum MutabilityReason { Mut { spans: Vec<MirSpan> }, Not, + Unused, } #[derive(Debug, Clone, PartialEq, Eq)] @@ -144,7 +145,8 @@ fn moved_out_of_ref(db: &dyn HirDatabase, body: &MirBody) -> Vec<MovedOutOfRef> } } }, - StatementKind::Deinit(_) + StatementKind::FakeRead(_) + | StatementKind::Deinit(_) | StatementKind::StorageLive(_) | StatementKind::StorageDead(_) | StatementKind::Nop => (), @@ -264,7 +266,10 @@ fn ever_initialized_map( is_ever_initialized = false; } } - StatementKind::Deinit(_) | StatementKind::Nop | StatementKind::StorageLive(_) => (), + StatementKind::Deinit(_) + | StatementKind::FakeRead(_) + | StatementKind::Nop + | StatementKind::StorageLive(_) => (), } } let Some(terminator) = &block.terminator else { @@ -331,16 +336,37 @@ fn ever_initialized_map( result } +fn push_mut_span(local: LocalId, span: MirSpan, result: &mut ArenaMap<LocalId, MutabilityReason>) { + match &mut result[local] { + MutabilityReason::Mut { spans } => spans.push(span), + it @ (MutabilityReason::Not | MutabilityReason::Unused) => { + *it = MutabilityReason::Mut { spans: vec![span] } + } + }; +} + +fn record_usage(local: LocalId, result: &mut ArenaMap<LocalId, MutabilityReason>) { + match &mut result[local] { + it @ MutabilityReason::Unused => { + *it = MutabilityReason::Not; + } + _ => (), + }; +} + +fn record_usage_for_operand(arg: &Operand, result: &mut ArenaMap<LocalId, MutabilityReason>) { + if let Operand::Copy(p) | Operand::Move(p) = arg { + record_usage(p.local, result); + } +} + fn mutability_of_locals( db: &dyn HirDatabase, body: &MirBody, ) -> ArenaMap<LocalId, MutabilityReason> { let mut result: ArenaMap<LocalId, MutabilityReason> = - body.locals.iter().map(|it| (it.0, MutabilityReason::Not)).collect(); - let mut push_mut_span = |local, span| match &mut result[local] { - MutabilityReason::Mut { spans } => spans.push(span), - it @ MutabilityReason::Not => *it = MutabilityReason::Mut { spans: vec![span] }, - }; + body.locals.iter().map(|it| (it.0, MutabilityReason::Unused)).collect(); + let ever_init_maps = ever_initialized_map(db, body); for (block_id, mut ever_init_map) in ever_init_maps.into_iter() { let block = &body.basic_blocks[block_id]; @@ -350,23 +376,51 @@ fn mutability_of_locals( match place_case(db, body, place) { ProjectionCase::Direct => { if ever_init_map.get(place.local).copied().unwrap_or_default() { - push_mut_span(place.local, statement.span); + push_mut_span(place.local, statement.span, &mut result); } else { ever_init_map.insert(place.local, true); } } ProjectionCase::DirectPart => { // Partial initialization is not supported, so it is definitely `mut` - push_mut_span(place.local, statement.span); + push_mut_span(place.local, statement.span, &mut result); + } + ProjectionCase::Indirect => { + record_usage(place.local, &mut result); } - ProjectionCase::Indirect => (), + } + match value { + Rvalue::CopyForDeref(p) + | Rvalue::Discriminant(p) + | Rvalue::Len(p) + | Rvalue::Ref(_, p) => { + record_usage(p.local, &mut result); + } + Rvalue::Use(o) + | Rvalue::Repeat(o, _) + | Rvalue::Cast(_, o, _) + | Rvalue::UnaryOp(_, o) => record_usage_for_operand(o, &mut result), + Rvalue::CheckedBinaryOp(_, o1, o2) => { + for o in [o1, o2] { + record_usage_for_operand(o, &mut result); + } + } + Rvalue::Aggregate(_, args) => { + for arg in args.iter() { + record_usage_for_operand(arg, &mut result); + } + } + Rvalue::ShallowInitBox(_, _) | Rvalue::ShallowInitBoxWithAlloc(_) => (), } if let Rvalue::Ref(BorrowKind::Mut { .. }, p) = value { if place_case(db, body, p) != ProjectionCase::Indirect { - push_mut_span(p.local, statement.span); + push_mut_span(p.local, statement.span, &mut result); } } } + StatementKind::FakeRead(p) => { + record_usage(p.local, &mut result); + } StatementKind::StorageDead(p) => { ever_init_map.insert(*p, false); } @@ -386,15 +440,21 @@ fn mutability_of_locals( | TerminatorKind::FalseEdge { .. } | TerminatorKind::FalseUnwind { .. } | TerminatorKind::GeneratorDrop - | TerminatorKind::SwitchInt { .. } | TerminatorKind::Drop { .. } | TerminatorKind::DropAndReplace { .. } | TerminatorKind::Assert { .. } | TerminatorKind::Yield { .. } => (), - TerminatorKind::Call { destination, .. } => { + TerminatorKind::SwitchInt { discr, targets: _ } => { + record_usage_for_operand(discr, &mut result); + } + TerminatorKind::Call { destination, args, func, .. } => { + record_usage_for_operand(func, &mut result); + for arg in args.iter() { + record_usage_for_operand(arg, &mut result); + } if destination.projection.lookup(&body.projection_store).len() == 0 { if ever_init_map.get(destination.local).copied().unwrap_or_default() { - push_mut_span(destination.local, MirSpan::Unknown); + push_mut_span(destination.local, MirSpan::Unknown, &mut result); } else { ever_init_map.insert(destination.local, true); } diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval.rs b/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval.rs index 4364e0d323b..62efb858511 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval.rs @@ -162,7 +162,7 @@ pub struct Evaluator<'a> { not_special_fn_cache: RefCell<FxHashSet<FunctionId>>, mir_or_dyn_index_cache: RefCell<FxHashMap<(FunctionId, Substitution), MirOrDynIndex>>, /// Constantly dropping and creating `Locals` is very costly. We store - /// old locals that we normaly want to drop here, to reuse their allocations + /// old locals that we normally want to drop here, to reuse their allocations /// later. unused_locals_store: RefCell<FxHashMap<DefWithBodyId, Vec<Locals>>>, cached_ptr_size: usize, @@ -375,10 +375,7 @@ impl MirEvalError { Err(_) => continue, }, MirSpan::PatId(p) => match source_map.pat_syntax(*p) { - Ok(s) => s.map(|it| match it { - Either::Left(e) => e.into(), - Either::Right(e) => e.into(), - }), + Ok(s) => s.map(|it| it.syntax_node_ptr()), Err(_) => continue, }, MirSpan::Unknown => continue, @@ -842,6 +839,7 @@ impl Evaluator<'_> { } StatementKind::Deinit(_) => not_supported!("de-init statement"), StatementKind::StorageLive(_) + | StatementKind::FakeRead(_) | StatementKind::StorageDead(_) | StatementKind::Nop => (), } @@ -2301,7 +2299,7 @@ impl Evaluator<'_> { match self.get_mir_or_dyn_index(def, generic_args.clone(), locals, span)? { MirOrDynIndex::Dyn(self_ty_idx) => { // In the layout of current possible receiver, which at the moment of writing this code is one of - // `&T`, `&mut T`, `Box<T>`, `Rc<T>`, `Arc<T>`, and `Pin<P>` where `P` is one of possible recievers, + // `&T`, `&mut T`, `Box<T>`, `Rc<T>`, `Arc<T>`, and `Pin<P>` where `P` is one of possible receivers, // the vtable is exactly in the `[ptr_size..2*ptr_size]` bytes. So we can use it without branching on // the type. let first_arg = arg_bytes.clone().next().unwrap(); diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval/shim.rs b/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval/shim.rs index 803ef631f1e..2de99e41659 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval/shim.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir/eval/shim.rs @@ -1045,7 +1045,7 @@ impl Evaluator<'_> { } "transmute" => { let [arg] = args else { - return Err(MirEvalError::TypeError("trasmute arg is not provided")); + return Err(MirEvalError::TypeError("transmute arg is not provided")); }; destination.write_from_interval(self, arg.interval) } @@ -1065,7 +1065,7 @@ impl Evaluator<'_> { } "ctlz" | "ctlz_nonzero" => { let [arg] = args else { - return Err(MirEvalError::TypeError("cttz arg is not provided")); + return Err(MirEvalError::TypeError("ctlz arg is not provided")); }; let result = u128::from_le_bytes(pad16(arg.get(self)?, false)).leading_zeros() as usize; diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower.rs b/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower.rs index dd2dba717f9..9905d522146 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower.rs @@ -529,6 +529,7 @@ impl<'ctx> MirLowerCtx<'ctx> { else { return Ok(None); }; + self.push_fake_read(current, cond_place, expr_id.into()); let (then_target, else_target) = self.pattern_match(current, None, cond_place, *pat)?; self.write_bytes_to_place( @@ -668,6 +669,7 @@ impl<'ctx> MirLowerCtx<'ctx> { else { return Ok(None); }; + self.push_fake_read(current, cond_place, expr_id.into()); let mut end = None; for MatchArm { pat, guard, expr } in arms.iter() { let (then, mut otherwise) = @@ -1299,6 +1301,7 @@ impl<'ctx> MirLowerCtx<'ctx> { return Ok(None); }; if matches!(&self.body.exprs[lhs], Expr::Underscore) { + self.push_fake_read_for_operand(current, rhs_op, span); return Ok(Some(current)); } if matches!( @@ -1575,6 +1578,16 @@ impl<'ctx> MirLowerCtx<'ctx> { self.result.basic_blocks[block].statements.push(statement); } + fn push_fake_read(&mut self, block: BasicBlockId, p: Place, span: MirSpan) { + self.push_statement(block, StatementKind::FakeRead(p).with_span(span)); + } + + fn push_fake_read_for_operand(&mut self, block: BasicBlockId, operand: Operand, span: MirSpan) { + if let Operand::Move(p) | Operand::Copy(p) = operand { + self.push_fake_read(block, p, span); + } + } + fn push_assignment( &mut self, block: BasicBlockId, @@ -1733,6 +1746,7 @@ impl<'ctx> MirLowerCtx<'ctx> { return Ok(None); }; current = c; + self.push_fake_read(current, init_place, span); (current, else_block) = self.pattern_match(current, None, init_place, *pat)?; match (else_block, else_branch) { @@ -1760,13 +1774,14 @@ impl<'ctx> MirLowerCtx<'ctx> { } } } - hir_def::hir::Statement::Expr { expr, has_semi: _ } => { + &hir_def::hir::Statement::Expr { expr, has_semi: _ } => { let scope2 = self.push_drop_scope(); - let Some((_, c)) = self.lower_expr_as_place(current, *expr, true)? else { + let Some((p, c)) = self.lower_expr_as_place(current, expr, true)? else { scope2.pop_assume_dropped(self); scope.pop_assume_dropped(self); return Ok(None); }; + self.push_fake_read(c, p, expr.into()); current = scope2.pop_and_drop(self, c); } } diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower/pattern_matching.rs b/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower/pattern_matching.rs index 270f75ad967..1120bb1c112 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower/pattern_matching.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower/pattern_matching.rs @@ -284,6 +284,7 @@ impl MirLowerCtx<'_> { ); (current, current_else) = self.pattern_match_binding( id, + *slice, next_place, (*slice).into(), current, @@ -395,6 +396,7 @@ impl MirLowerCtx<'_> { if mode == MatchingMode::Bind { self.pattern_match_binding( *id, + pattern, cond_place, pattern.into(), current, @@ -431,13 +433,14 @@ impl MirLowerCtx<'_> { fn pattern_match_binding( &mut self, id: BindingId, + pat: PatId, cond_place: Place, span: MirSpan, current: BasicBlockId, current_else: Option<BasicBlockId>, ) -> Result<(BasicBlockId, Option<BasicBlockId>)> { let target_place = self.binding_local(id)?; - let mode = self.infer.binding_modes[id]; + let mode = self.infer.binding_modes[pat]; self.push_storage_live(id, current)?; self.push_assignment( current, diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/mir/monomorphization.rs b/src/tools/rust-analyzer/crates/hir-ty/src/mir/monomorphization.rs index df16d0d8201..7d2bb95d931 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir/monomorphization.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir/monomorphization.rs @@ -248,6 +248,7 @@ impl Filler<'_> { | Rvalue::CopyForDeref(_) => (), }, StatementKind::Deinit(_) + | StatementKind::FakeRead(_) | StatementKind::StorageLive(_) | StatementKind::StorageDead(_) | StatementKind::Nop => (), diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/mir/pretty.rs b/src/tools/rust-analyzer/crates/hir-ty/src/mir/pretty.rs index 0108859ff32..6e42bee97f7 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir/pretty.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir/pretty.rs @@ -233,6 +233,11 @@ impl<'a> MirPrettyCtx<'a> { this.place(p); wln!(this, ");"); } + StatementKind::FakeRead(p) => { + w!(this, "FakeRead("); + this.place(p); + wln!(this, ");"); + } StatementKind::Nop => wln!(this, "Nop;"), } } diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/tests.rs b/src/tools/rust-analyzer/crates/hir-ty/src/tests.rs index d22d0d85c8e..1446e83fa88 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/tests.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/tests.rs @@ -269,12 +269,7 @@ fn pat_node( Some(match body_source_map.pat_syntax(pat) { Ok(sp) => { let root = db.parse_or_expand(sp.file_id); - sp.map(|ptr| { - ptr.either( - |it| it.to_node(&root).syntax().clone(), - |it| it.to_node(&root).syntax().clone(), - ) - }) + sp.map(|ptr| ptr.to_node(&root).syntax().clone()) } Err(SyntheticSyntax) => return None, }) @@ -303,12 +298,7 @@ fn infer_with_mismatches(content: &str, include_mismatches: bool) -> String { let syntax_ptr = match body_source_map.pat_syntax(pat) { Ok(sp) => { let root = db.parse_or_expand(sp.file_id); - sp.map(|ptr| { - ptr.either( - |it| it.to_node(&root).syntax().clone(), - |it| it.to_node(&root).syntax().clone(), - ) - }) + sp.map(|ptr| ptr.to_node(&root).syntax().clone()) } Err(SyntheticSyntax) => continue, }; diff --git a/src/tools/rust-analyzer/crates/hir/Cargo.toml b/src/tools/rust-analyzer/crates/hir/Cargo.toml index f860ee94845..09ab60dd549 100644 --- a/src/tools/rust-analyzer/crates/hir/Cargo.toml +++ b/src/tools/rust-analyzer/crates/hir/Cargo.toml @@ -30,3 +30,6 @@ profile.workspace = true stdx.workspace = true syntax.workspace = true tt.workspace = true + +[features] +in-rust-tree = [] diff --git a/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs b/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs index 479138b67f8..67d3169243c 100644 --- a/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs +++ b/src/tools/rust-analyzer/crates/hir/src/diagnostics.rs @@ -66,6 +66,7 @@ diagnostics![ UnresolvedModule, UnresolvedProcMacro, UnusedMut, + UnusedVariable, ]; #[derive(Debug)] @@ -173,20 +174,19 @@ pub struct MalformedDerive { #[derive(Debug)] pub struct NoSuchField { - pub field: InFile<Either<AstPtr<ast::RecordExprField>, AstPtr<ast::RecordPatField>>>, + pub field: InFile<AstPtr<Either<ast::RecordExprField, ast::RecordPatField>>>, pub private: bool, } #[derive(Debug)] pub struct PrivateAssocItem { - pub expr_or_pat: - InFile<Either<AstPtr<ast::Expr>, Either<AstPtr<ast::Pat>, AstPtr<ast::SelfParam>>>>, + pub expr_or_pat: InFile<AstPtr<Either<ast::Expr, Either<ast::Pat, ast::SelfParam>>>>, pub item: AssocItem, } #[derive(Debug)] pub struct MismatchedTupleStructPatArgCount { - pub expr_or_pat: InFile<Either<AstPtr<ast::Expr>, AstPtr<ast::Pat>>>, + pub expr_or_pat: InFile<AstPtr<Either<ast::Expr, ast::Pat>>>, pub expected: usize, pub found: usize, } @@ -227,7 +227,7 @@ pub struct MissingUnsafe { #[derive(Debug)] pub struct MissingFields { pub file: HirFileId, - pub field_list_parent: Either<AstPtr<ast::RecordExpr>, AstPtr<ast::RecordPat>>, + pub field_list_parent: AstPtr<Either<ast::RecordExpr, ast::RecordPat>>, pub field_list_parent_path: Option<AstPtr<ast::Path>>, pub missed_fields: Vec<Name>, } @@ -254,7 +254,7 @@ pub struct MissingMatchArms { #[derive(Debug)] pub struct TypeMismatch { - pub expr_or_pat: Either<InFile<AstPtr<ast::Expr>>, InFile<AstPtr<ast::Pat>>>, + pub expr_or_pat: InFile<AstPtr<Either<ast::Expr, ast::Pat>>>, pub expected: Type, pub actual: Type, } @@ -271,6 +271,11 @@ pub struct UnusedMut { } #[derive(Debug)] +pub struct UnusedVariable { + pub local: Local, +} + +#[derive(Debug)] pub struct MovedOutOfRef { pub ty: Type, pub span: InFile<SyntaxNodePtr>, diff --git a/src/tools/rust-analyzer/crates/hir/src/lib.rs b/src/tools/rust-analyzer/crates/hir/src/lib.rs index b215ed38f28..93859611668 100644 --- a/src/tools/rust-analyzer/crates/hir/src/lib.rs +++ b/src/tools/rust-analyzer/crates/hir/src/lib.rs @@ -18,6 +18,7 @@ //! <https://www.tedinski.com/2018/02/06/system-boundaries.html>. #![warn(rust_2018_idioms, unused_lifetimes, semicolon_in_expressions_from_macros)] +#![cfg_attr(feature = "in-rust-tree", feature(rustc_private))] #![recursion_limit = "512"] mod semantics; @@ -64,7 +65,7 @@ use hir_ty::{ consteval::{try_const_usize, unknown_const_as_generic, ConstEvalError, ConstExt}, diagnostics::BodyValidationDiagnostic, known_const_to_ast, - layout::{Layout as TyLayout, RustcEnumVariantIdx, TagEncoding}, + layout::{Layout as TyLayout, RustcEnumVariantIdx, RustcFieldIdx, TagEncoding}, method_resolution::{self, TyFingerprint}, mir::{self, interpret_mir}, primitive::UintTy, @@ -98,7 +99,7 @@ pub use crate::{ ReplaceFilterMapNextWithFindMap, TypeMismatch, TypedHole, UndeclaredLabel, UnimplementedBuiltinMacro, UnreachableLabel, UnresolvedExternCrate, UnresolvedField, UnresolvedImport, UnresolvedMacroCall, UnresolvedMethodCall, UnresolvedModule, - UnresolvedProcMacro, UnusedMut, + UnresolvedProcMacro, UnusedMut, UnusedVariable, }, has_source::HasSource, semantics::{PathResolution, Semantics, SemanticsScope, TypeInfo, VisibleTraits}, @@ -452,15 +453,7 @@ impl HasVisibility for ModuleDef { impl Module { /// Name of this module. pub fn name(self, db: &dyn HirDatabase) -> Option<Name> { - let def_map = self.id.def_map(db.upcast()); - let parent = def_map[self.id.local_id].parent?; - def_map[parent].children.iter().find_map(|(name, module_id)| { - if *module_id == self.id.local_id { - Some(name.clone()) - } else { - None - } - }) + self.id.name(db.upcast()) } /// Returns the crate this module is part of. @@ -571,6 +564,7 @@ impl Module { if def_map[m.id.local_id].origin.is_inline() { m.diagnostics(db, acc) } + acc.extend(def.diagnostics(db)) } ModuleDef::Trait(t) => { for diag in db.trait_data_with_diagnostics(t.id).1.iter() { @@ -1509,10 +1503,10 @@ impl DefWithBody { &hir_ty::InferenceDiagnostic::NoSuchField { field: expr, private } => { let expr_or_pat = match expr { ExprOrPatId::ExprId(expr) => { - source_map.field_syntax(expr).map(Either::Left) + source_map.field_syntax(expr).map(AstPtr::wrap_left) } ExprOrPatId::PatId(pat) => { - source_map.pat_field_syntax(pat).map(Either::Right) + source_map.pat_field_syntax(pat).map(AstPtr::wrap_right) } }; acc.push(NoSuchField { field: expr_or_pat, private }.into()) @@ -1530,8 +1524,8 @@ impl DefWithBody { } &hir_ty::InferenceDiagnostic::PrivateAssocItem { id, item } => { let expr_or_pat = match id { - ExprOrPatId::ExprId(expr) => expr_syntax(expr).map(Either::Left), - ExprOrPatId::PatId(pat) => pat_syntax(pat).map(Either::Right), + ExprOrPatId::ExprId(expr) => expr_syntax(expr).map(AstPtr::wrap_left), + ExprOrPatId::PatId(pat) => pat_syntax(pat).map(AstPtr::wrap_right), }; let item = item.into(); acc.push(PrivateAssocItem { expr_or_pat, item }.into()) @@ -1609,12 +1603,17 @@ impl DefWithBody { found, } => { let expr_or_pat = match pat { - ExprOrPatId::ExprId(expr) => expr_syntax(expr).map(Either::Left), - ExprOrPatId::PatId(pat) => source_map - .pat_syntax(pat) - .expect("unexpected synthetic") - .map(|it| it.unwrap_left()) - .map(Either::Right), + ExprOrPatId::ExprId(expr) => expr_syntax(expr).map(AstPtr::wrap_left), + ExprOrPatId::PatId(pat) => { + let InFile { file_id, value } = + source_map.pat_syntax(pat).expect("unexpected synthetic"); + + // cast from Either<Pat, SelfParam> -> Either<_, Pat> + let Some(ptr) = AstPtr::try_from_raw(value.syntax_node_ptr()) else { + continue; + }; + InFile { file_id, value: ptr } + } }; acc.push( MismatchedTupleStructPatArgCount { expr_or_pat, expected, found }.into(), @@ -1628,11 +1627,15 @@ impl DefWithBody { ExprOrPatId::PatId(pat) => source_map.pat_syntax(pat).map(Either::Right), }; let expr_or_pat = match expr_or_pat { - Ok(Either::Left(expr)) => Either::Left(expr), - Ok(Either::Right(InFile { file_id, value: Either::Left(pat) })) => { - Either::Right(InFile { file_id, value: pat }) + Ok(Either::Left(expr)) => expr.map(AstPtr::wrap_left), + Ok(Either::Right(InFile { file_id, value: pat })) => { + // cast from Either<Pat, SelfParam> -> Either<_, Pat> + let Some(ptr) = AstPtr::try_from_raw(pat.syntax_node_ptr()) else { + continue; + }; + InFile { file_id, value: ptr } } - Ok(Either::Right(_)) | Err(SyntheticSyntax) => continue, + Err(SyntheticSyntax) => continue, }; acc.push( @@ -1667,10 +1670,7 @@ impl DefWithBody { Err(_) => continue, }, mir::MirSpan::PatId(p) => match source_map.pat_syntax(p) { - Ok(s) => s.map(|it| match it { - Either::Left(e) => e.into(), - Either::Right(e) => e.into(), - }), + Ok(s) => s.map(|it| it.into()), Err(_) => continue, }, mir::MirSpan::Unknown => continue, @@ -1697,9 +1697,20 @@ impl DefWithBody { // Skip synthetic bindings continue; } - let need_mut = &mol[local]; + let mut need_mut = &mol[local]; + if body[binding_id].name.as_str() == Some("self") + && need_mut == &mir::MutabilityReason::Unused + { + need_mut = &mir::MutabilityReason::Not; + } let local = Local { parent: self.into(), binding_id }; match (need_mut, local.is_mut(db)) { + (mir::MutabilityReason::Unused, _) => { + let should_ignore = matches!(body[binding_id].name.as_str(), Some(it) if it.starts_with("_")); + if !should_ignore { + acc.push(UnusedVariable { local }.into()) + } + } (mir::MutabilityReason::Mut { .. }, true) | (mir::MutabilityReason::Not, false) => (), (mir::MutabilityReason::Mut { spans }, false) => { @@ -1710,10 +1721,7 @@ impl DefWithBody { Err(_) => continue, }, mir::MirSpan::PatId(p) => match source_map.pat_syntax(*p) { - Ok(s) => s.map(|it| match it { - Either::Left(e) => e.into(), - Either::Right(e) => e.into(), - }), + Ok(s) => s.map(|it| it.into()), Err(_) => continue, }, mir::MirSpan::Unknown => continue, @@ -1752,18 +1760,18 @@ impl DefWithBody { Ok(source_ptr) => { let root = source_ptr.file_syntax(db.upcast()); if let ast::Expr::RecordExpr(record_expr) = - &source_ptr.value.to_node(&root) + source_ptr.value.to_node(&root) { if record_expr.record_expr_field_list().is_some() { + let field_list_parent_path = + record_expr.path().map(|path| AstPtr::new(&path)); acc.push( MissingFields { file: source_ptr.file_id, - field_list_parent: Either::Left(AstPtr::new( + field_list_parent: AstPtr::new(&Either::Left( record_expr, )), - field_list_parent_path: record_expr - .path() - .map(|path| AstPtr::new(&path)), + field_list_parent_path, missed_fields, } .into(), @@ -1775,24 +1783,24 @@ impl DefWithBody { }, Either::Right(record_pat) => match source_map.pat_syntax(record_pat) { Ok(source_ptr) => { - if let Some(expr) = source_ptr.value.as_ref().left() { + if let Some(ptr) = source_ptr.value.clone().cast::<ast::RecordPat>() + { let root = source_ptr.file_syntax(db.upcast()); - if let ast::Pat::RecordPat(record_pat) = expr.to_node(&root) { - if record_pat.record_pat_field_list().is_some() { - acc.push( - MissingFields { - file: source_ptr.file_id, - field_list_parent: Either::Right(AstPtr::new( - &record_pat, - )), - field_list_parent_path: record_pat - .path() - .map(|path| AstPtr::new(&path)), - missed_fields, - } - .into(), - ) - } + let record_pat = ptr.to_node(&root); + if record_pat.record_pat_field_list().is_some() { + let field_list_parent_path = + record_pat.path().map(|path| AstPtr::new(&path)); + acc.push( + MissingFields { + file: source_ptr.file_id, + field_list_parent: AstPtr::new(&Either::Right( + record_pat, + )), + field_list_parent_path, + missed_fields, + } + .into(), + ) } } } @@ -1960,6 +1968,17 @@ impl Function { db.function_data(self.id).attrs.is_test() } + /// is this a `fn main` or a function with an `export_name` of `main`? + pub fn is_main(self, db: &dyn HirDatabase) -> bool { + if !self.module(db).is_crate_root() { + return false; + } + let data = db.function_data(self.id); + + data.name.to_smol_str() == "main" + || data.attrs.export_name().map(core::ops::Deref::deref) == Some("main") + } + /// Does this function have the ignore attribute? pub fn is_ignore(self, db: &dyn HirDatabase) -> bool { db.function_data(self.id).attrs.is_ignore() @@ -2926,10 +2945,10 @@ impl Local { .map(|&definition| { let src = source_map.pat_syntax(definition).unwrap(); // Hmm... let root = src.file_syntax(db.upcast()); - src.map(|ast| match ast { - // Suspicious unwrap - Either::Left(it) => Either::Left(it.cast().unwrap().to_node(&root)), - Either::Right(it) => Either::Right(it.to_node(&root)), + src.map(|ast| match ast.to_node(&root) { + Either::Left(ast::Pat::IdentPat(it)) => Either::Left(it), + Either::Left(_) => unreachable!("local with non ident-pattern"), + Either::Right(it) => Either::Right(it), }) }) .map(move |source| LocalSource { local: self, source }) @@ -4515,15 +4534,31 @@ impl Layout { Some(self.0.largest_niche?.available(&*self.1)) } - pub fn field_offset(&self, idx: usize) -> Option<u64> { + pub fn field_offset(&self, field: Field) -> Option<u64> { + match self.0.fields { + layout::FieldsShape::Primitive => None, + layout::FieldsShape::Union(_) => Some(0), + layout::FieldsShape::Array { stride, count } => { + let i = u64::try_from(field.index()).ok()?; + (i < count).then_some((stride * i).bytes()) + } + layout::FieldsShape::Arbitrary { ref offsets, .. } => { + Some(offsets.get(RustcFieldIdx(field.id))?.bytes()) + } + } + } + + pub fn tuple_field_offset(&self, field: usize) -> Option<u64> { match self.0.fields { layout::FieldsShape::Primitive => None, layout::FieldsShape::Union(_) => Some(0), layout::FieldsShape::Array { stride, count } => { - let i = u64::try_from(idx).ok()?; + let i = u64::try_from(field).ok()?; (i < count).then_some((stride * i).bytes()) } - layout::FieldsShape::Arbitrary { ref offsets, .. } => Some(offsets.get(idx)?.bytes()), + layout::FieldsShape::Arbitrary { ref offsets, .. } => { + Some(offsets.get(RustcFieldIdx::new(field))?.bytes()) + } } } diff --git a/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs b/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs index f29fb1edf00..55c2f8324c6 100644 --- a/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs +++ b/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs @@ -236,9 +236,9 @@ impl SourceAnalyzer { _db: &dyn HirDatabase, pat: &ast::IdentPat, ) -> Option<BindingMode> { - let binding_id = self.binding_id_of_pat(pat)?; + let id = self.pat_id(&pat.clone().into())?; let infer = self.infer.as_ref()?; - infer.binding_modes.get(binding_id).map(|bm| match bm { + infer.binding_modes.get(id).map(|bm| match bm { hir_ty::BindingMode::Move => BindingMode::Move, hir_ty::BindingMode::Ref(hir_ty::Mutability::Mut) => BindingMode::Ref(Mutability::Mut), hir_ty::BindingMode::Ref(hir_ty::Mutability::Not) => { @@ -888,7 +888,7 @@ fn scope_for_offset( .scope_by_expr() .iter() .filter_map(|(id, scope)| { - let InFile { file_id, value } = source_map.expr_syntax(*id).ok()?; + let InFile { file_id, value } = source_map.expr_syntax(id).ok()?; if from_file == file_id { return Some((value.text_range(), scope)); } @@ -923,7 +923,7 @@ fn adjust( .scope_by_expr() .iter() .filter_map(|(id, scope)| { - let source = source_map.expr_syntax(*id).ok()?; + let source = source_map.expr_syntax(id).ok()?; // FIXME: correctly handle macro expansion if source.file_id != from_file { return None; diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/add_missing_match_arms.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/add_missing_match_arms.rs index 3b162d7c4d8..c8b78b09416 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/add_missing_match_arms.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/add_missing_match_arms.rs @@ -273,9 +273,10 @@ pub(crate) fn add_missing_match_arms(acc: &mut Assists, ctx: &AssistContext<'_>) syntax::SyntaxElement::Token(it) => { // Don't have a way to make tokens mut, so instead make the parent mut // and find the token again - let parent = edit.make_syntax_mut(it.parent().unwrap()); + let parent = + edit.make_syntax_mut(it.parent().expect("Token must have a parent.")); let mut_token = - parent.covering_element(it.text_range()).into_token().unwrap(); + parent.covering_element(it.text_range()).into_token().expect("Covering element cannot be found. Range may be beyond the current node's range"); syntax::SyntaxElement::from(mut_token) } @@ -446,21 +447,23 @@ fn build_pat( mod_path_to_ast(&module.find_use_path(db, ModuleDef::from(var), prefer_no_std)?); // FIXME: use HIR for this; it doesn't currently expose struct vs. tuple vs. unit variants though - let pat: ast::Pat = match var.source(db)?.value.kind() { + Some(match var.source(db)?.value.kind() { ast::StructKind::Tuple(field_list) => { let pats = iter::repeat(make::wildcard_pat().into()).take(field_list.fields().count()); make::tuple_struct_pat(path, pats).into() } ast::StructKind::Record(field_list) => { - let pats = field_list - .fields() - .map(|f| make::ext::simple_ident_pat(f.name().unwrap()).into()); + let pats = field_list.fields().map(|f| { + make::ext::simple_ident_pat( + f.name().expect("Record field must have a name"), + ) + .into() + }); make::record_pat(path, pats).into() } ast::StructKind::Unit => make::path_pat(path), - }; - Some(pat) + }) } ExtendedVariant::True => Some(ast::Pat::from(make::literal_pat("true"))), ExtendedVariant::False => Some(ast::Pat::from(make::literal_pat("false"))), @@ -1941,4 +1944,35 @@ fn main() { "#, ); } + + /// See [`discussion`](https://github.com/rust-lang/rust-analyzer/pull/15594#discussion_r1322960614) + #[test] + fn missing_field_name() { + check_assist( + add_missing_match_arms, + r#" +enum A { + A, + Missing { a: u32, : u32, c: u32 } +} + +fn a() { + let b = A::A; + match b$0 {} +}"#, + r#" +enum A { + A, + Missing { a: u32, : u32, c: u32 } +} + +fn a() { + let b = A::A; + match b { + $0A::A => todo!(), + A::Missing { a, u32, c } => todo!(), + } +}"#, + ) + } } diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/apply_demorgan.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/apply_demorgan.rs index 66bc2f6dadc..2d41243c20e 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/apply_demorgan.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/apply_demorgan.rs @@ -1,7 +1,13 @@ use std::collections::VecDeque; +use ide_db::{ + assists::GroupLabel, + famous_defs::FamousDefs, + source_change::SourceChangeBuilder, + syntax_helpers::node_ext::{for_each_tail_expr, walk_expr}, +}; use syntax::{ - ast::{self, AstNode, Expr::BinExpr}, + ast::{self, make, AstNode, Expr::BinExpr, HasArgList}, ted::{self, Position}, SyntaxKind, }; @@ -89,7 +95,8 @@ pub(crate) fn apply_demorgan(acc: &mut Assists, ctx: &AssistContext<'_>) -> Opti let dm_lhs = demorganed.lhs()?; - acc.add( + acc.add_group( + &GroupLabel("Apply De Morgan's law".to_string()), AssistId("apply_demorgan", AssistKind::RefactorRewrite), "Apply De Morgan's law", op_range, @@ -143,6 +150,127 @@ pub(crate) fn apply_demorgan(acc: &mut Assists, ctx: &AssistContext<'_>) -> Opti ) } +// Assist: apply_demorgan_iterator +// +// Apply https://en.wikipedia.org/wiki/De_Morgan%27s_laws[De Morgan's law] to +// `Iterator::all` and `Iterator::any`. +// +// This transforms expressions of the form `!iter.any(|x| predicate(x))` into +// `iter.all(|x| !predicate(x))` and vice versa. This also works the other way for +// `Iterator::all` into `Iterator::any`. +// +// ``` +// # //- minicore: iterator +// fn main() { +// let arr = [1, 2, 3]; +// if !arr.into_iter().$0any(|num| num == 4) { +// println!("foo"); +// } +// } +// ``` +// -> +// ``` +// fn main() { +// let arr = [1, 2, 3]; +// if arr.into_iter().all(|num| num != 4) { +// println!("foo"); +// } +// } +// ``` +pub(crate) fn apply_demorgan_iterator(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()> { + let method_call: ast::MethodCallExpr = ctx.find_node_at_offset()?; + let (name, arg_expr) = validate_method_call_expr(ctx, &method_call)?; + + let ast::Expr::ClosureExpr(closure_expr) = arg_expr else { return None }; + let closure_body = closure_expr.body()?; + + let op_range = method_call.syntax().text_range(); + let label = format!("Apply De Morgan's law to `Iterator::{}`", name.text().as_str()); + acc.add_group( + &GroupLabel("Apply De Morgan's law".to_string()), + AssistId("apply_demorgan_iterator", AssistKind::RefactorRewrite), + label, + op_range, + |edit| { + // replace the method name + let new_name = match name.text().as_str() { + "all" => make::name_ref("any"), + "any" => make::name_ref("all"), + _ => unreachable!(), + } + .clone_for_update(); + edit.replace_ast(name, new_name); + + // negate all tail expressions in the closure body + let tail_cb = &mut |e: &_| tail_cb_impl(edit, e); + walk_expr(&closure_body, &mut |expr| { + if let ast::Expr::ReturnExpr(ret_expr) = expr { + if let Some(ret_expr_arg) = &ret_expr.expr() { + for_each_tail_expr(ret_expr_arg, tail_cb); + } + } + }); + for_each_tail_expr(&closure_body, tail_cb); + + // negate the whole method call + if let Some(prefix_expr) = method_call + .syntax() + .parent() + .and_then(ast::PrefixExpr::cast) + .filter(|prefix_expr| matches!(prefix_expr.op_kind(), Some(ast::UnaryOp::Not))) + { + edit.delete( + prefix_expr + .op_token() + .expect("prefix expression always has an operator") + .text_range(), + ); + } else { + edit.insert(method_call.syntax().text_range().start(), "!"); + } + }, + ) +} + +/// Ensures that the method call is to `Iterator::all` or `Iterator::any`. +fn validate_method_call_expr( + ctx: &AssistContext<'_>, + method_call: &ast::MethodCallExpr, +) -> Option<(ast::NameRef, ast::Expr)> { + let name_ref = method_call.name_ref()?; + if name_ref.text() != "all" && name_ref.text() != "any" { + return None; + } + let arg_expr = method_call.arg_list()?.args().next()?; + + let sema = &ctx.sema; + + let receiver = method_call.receiver()?; + let it_type = sema.type_of_expr(&receiver)?.adjusted(); + let module = sema.scope(receiver.syntax())?.module(); + let krate = module.krate(); + + let iter_trait = FamousDefs(sema, krate).core_iter_Iterator()?; + it_type.impls_trait(sema.db, iter_trait, &[]).then_some((name_ref, arg_expr)) +} + +fn tail_cb_impl(edit: &mut SourceChangeBuilder, e: &ast::Expr) { + match e { + ast::Expr::BreakExpr(break_expr) => { + if let Some(break_expr_arg) = break_expr.expr() { + for_each_tail_expr(&break_expr_arg, &mut |e| tail_cb_impl(edit, e)) + } + } + ast::Expr::ReturnExpr(_) => { + // all return expressions have already been handled by the walk loop + } + e => { + let inverted_body = invert_boolean_expression(e.clone()); + edit.replace(e.syntax().text_range(), inverted_body.syntax().text()); + } + } +} + #[cfg(test)] mod tests { use super::*; @@ -255,4 +383,206 @@ fn f() { !(S <= S || S < S) } "fn() { let x = a && b && c; }", ) } + + #[test] + fn demorgan_iterator_any_all_reverse() { + check_assist( + apply_demorgan_iterator, + r#" +//- minicore: iterator +fn main() { + let arr = [1, 2, 3]; + if arr.into_iter().all(|num| num $0!= 4) { + println!("foo"); + } +} +"#, + r#" +fn main() { + let arr = [1, 2, 3]; + if !arr.into_iter().any(|num| num == 4) { + println!("foo"); + } +} +"#, + ); + } + + #[test] + fn demorgan_iterator_all_any() { + check_assist( + apply_demorgan_iterator, + r#" +//- minicore: iterator +fn main() { + let arr = [1, 2, 3]; + if !arr.into_iter().$0all(|num| num > 3) { + println!("foo"); + } +} +"#, + r#" +fn main() { + let arr = [1, 2, 3]; + if arr.into_iter().any(|num| num <= 3) { + println!("foo"); + } +} +"#, + ); + } + + #[test] + fn demorgan_iterator_multiple_terms() { + check_assist( + apply_demorgan_iterator, + r#" +//- minicore: iterator +fn main() { + let arr = [1, 2, 3]; + if !arr.into_iter().$0any(|num| num > 3 && num == 23 && num <= 30) { + println!("foo"); + } +} +"#, + r#" +fn main() { + let arr = [1, 2, 3]; + if arr.into_iter().all(|num| !(num > 3 && num == 23 && num <= 30)) { + println!("foo"); + } +} +"#, + ); + } + + #[test] + fn demorgan_iterator_double_negation() { + check_assist( + apply_demorgan_iterator, + r#" +//- minicore: iterator +fn main() { + let arr = [1, 2, 3]; + if !arr.into_iter().$0all(|num| !(num > 3)) { + println!("foo"); + } +} +"#, + r#" +fn main() { + let arr = [1, 2, 3]; + if arr.into_iter().any(|num| num > 3) { + println!("foo"); + } +} +"#, + ); + } + + #[test] + fn demorgan_iterator_double_parens() { + check_assist( + apply_demorgan_iterator, + r#" +//- minicore: iterator +fn main() { + let arr = [1, 2, 3]; + if !arr.into_iter().$0any(|num| (num > 3 && (num == 1 || num == 2))) { + println!("foo"); + } +} +"#, + r#" +fn main() { + let arr = [1, 2, 3]; + if arr.into_iter().all(|num| !(num > 3 && (num == 1 || num == 2))) { + println!("foo"); + } +} +"#, + ); + } + + #[test] + fn demorgan_iterator_multiline() { + check_assist( + apply_demorgan_iterator, + r#" +//- minicore: iterator +fn main() { + let arr = [1, 2, 3]; + if arr + .into_iter() + .all$0(|num| !num.is_negative()) + { + println!("foo"); + } +} +"#, + r#" +fn main() { + let arr = [1, 2, 3]; + if !arr + .into_iter() + .any(|num| num.is_negative()) + { + println!("foo"); + } +} +"#, + ); + } + + #[test] + fn demorgan_iterator_block_closure() { + check_assist( + apply_demorgan_iterator, + r#" +//- minicore: iterator +fn main() { + let arr = [-1, 1, 2, 3]; + if arr.into_iter().all(|num: i32| { + $0if num.is_positive() { + num <= 3 + } else { + num >= -1 + } + }) { + println!("foo"); + } +} +"#, + r#" +fn main() { + let arr = [-1, 1, 2, 3]; + if !arr.into_iter().any(|num: i32| { + if num.is_positive() { + num > 3 + } else { + num < -1 + } + }) { + println!("foo"); + } +} +"#, + ); + } + + #[test] + fn demorgan_iterator_wrong_method() { + check_assist_not_applicable( + apply_demorgan_iterator, + r#" +//- minicore: iterator +fn main() { + let arr = [1, 2, 3]; + if !arr.into_iter().$0map(|num| num > 3) { + println!("foo"); + } +} +"#, + ); + } } diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/auto_import.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/auto_import.rs index 7acf2ea0a0d..cafd57a9772 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/auto_import.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/auto_import.rs @@ -5,7 +5,7 @@ use ide_db::{ helpers::mod_path_to_ast, imports::{ import_assets::{ImportAssets, ImportCandidate, LocatedImport}, - insert_use::{insert_use, ImportScope}, + insert_use::{insert_use, insert_use_as_alias, ImportScope}, }, }; use syntax::{ast, AstNode, NodeOrToken, SyntaxElement}; @@ -129,10 +129,12 @@ pub(crate) fn auto_import(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option< for import in proposed_imports { let import_path = import.import_path; + let (assist_id, import_name) = + (AssistId("auto_import", AssistKind::QuickFix), import_path.display(ctx.db())); acc.add_group( &group_label, - AssistId("auto_import", AssistKind::QuickFix), - format!("Import `{}`", import_path.display(ctx.db())), + assist_id, + format!("Import `{}`", import_name), range, |builder| { let scope = match scope.clone() { @@ -143,6 +145,38 @@ pub(crate) fn auto_import(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option< insert_use(&scope, mod_path_to_ast(&import_path), &ctx.config.insert_use); }, ); + + match import_assets.import_candidate() { + ImportCandidate::TraitAssocItem(name) | ImportCandidate::TraitMethod(name) => { + let is_method = + matches!(import_assets.import_candidate(), ImportCandidate::TraitMethod(_)); + let type_ = if is_method { "method" } else { "item" }; + let group_label = GroupLabel(format!( + "Import a trait for {} {} by alias", + type_, + name.assoc_item_name.text() + )); + acc.add_group( + &group_label, + assist_id, + format!("Import `{} as _`", import_name), + range, + |builder| { + let scope = match scope.clone() { + ImportScope::File(it) => ImportScope::File(builder.make_mut(it)), + ImportScope::Module(it) => ImportScope::Module(builder.make_mut(it)), + ImportScope::Block(it) => ImportScope::Block(builder.make_mut(it)), + }; + insert_use_as_alias( + &scope, + mod_path_to_ast(&import_path), + &ctx.config.insert_use, + ); + }, + ); + } + _ => {} + } } Some(()) } @@ -253,7 +287,8 @@ mod tests { }; use crate::tests::{ - check_assist, check_assist_not_applicable, check_assist_target, TEST_CONFIG, + check_assist, check_assist_by_label, check_assist_not_applicable, check_assist_target, + TEST_CONFIG, }; fn check_auto_import_order(before: &str, order: &[&str]) { @@ -705,7 +740,7 @@ fn main() { #[test] fn associated_trait_function() { - check_assist( + check_assist_by_label( auto_import, r" mod test_mod { @@ -739,6 +774,44 @@ fn main() { test_mod::TestStruct::test_function } ", + "Import `test_mod::TestTrait`", + ); + + check_assist_by_label( + auto_import, + r" + mod test_mod { + pub trait TestTrait { + fn test_function(); + } + pub struct TestStruct {} + impl TestTrait for TestStruct { + fn test_function() {} + } + } + + fn main() { + test_mod::TestStruct::test_function$0 + } + ", + r" + use test_mod::TestTrait as _; + + mod test_mod { + pub trait TestTrait { + fn test_function(); + } + pub struct TestStruct {} + impl TestTrait for TestStruct { + fn test_function() {} + } + } + + fn main() { + test_mod::TestStruct::test_function + } + ", + "Import `test_mod::TestTrait as _`", ); } @@ -776,7 +849,44 @@ fn main() { #[test] fn associated_trait_const() { - check_assist( + check_assist_by_label( + auto_import, + r" + mod test_mod { + pub trait TestTrait { + const TEST_CONST: u8; + } + pub struct TestStruct {} + impl TestTrait for TestStruct { + const TEST_CONST: u8 = 42; + } + } + + fn main() { + test_mod::TestStruct::TEST_CONST$0 + } + ", + r" + use test_mod::TestTrait as _; + + mod test_mod { + pub trait TestTrait { + const TEST_CONST: u8; + } + pub struct TestStruct {} + impl TestTrait for TestStruct { + const TEST_CONST: u8 = 42; + } + } + + fn main() { + test_mod::TestStruct::TEST_CONST + } + ", + "Import `test_mod::TestTrait as _`", + ); + + check_assist_by_label( auto_import, r" mod test_mod { @@ -810,6 +920,7 @@ fn main() { test_mod::TestStruct::TEST_CONST } ", + "Import `test_mod::TestTrait`", ); } @@ -847,7 +958,46 @@ fn main() { #[test] fn trait_method() { - check_assist( + check_assist_by_label( + auto_import, + r" + mod test_mod { + pub trait TestTrait { + fn test_method(&self); + } + pub struct TestStruct {} + impl TestTrait for TestStruct { + fn test_method(&self) {} + } + } + + fn main() { + let test_struct = test_mod::TestStruct {}; + test_struct.test_meth$0od() + } + ", + r" + use test_mod::TestTrait as _; + + mod test_mod { + pub trait TestTrait { + fn test_method(&self); + } + pub struct TestStruct {} + impl TestTrait for TestStruct { + fn test_method(&self) {} + } + } + + fn main() { + let test_struct = test_mod::TestStruct {}; + test_struct.test_method() + } + ", + "Import `test_mod::TestTrait as _`", + ); + + check_assist_by_label( auto_import, r" mod test_mod { @@ -883,12 +1033,43 @@ fn main() { test_struct.test_method() } ", + "Import `test_mod::TestTrait`", ); } #[test] fn trait_method_cross_crate() { - check_assist( + check_assist_by_label( + auto_import, + r" + //- /main.rs crate:main deps:dep + fn main() { + let test_struct = dep::test_mod::TestStruct {}; + test_struct.test_meth$0od() + } + //- /dep.rs crate:dep + pub mod test_mod { + pub trait TestTrait { + fn test_method(&self); + } + pub struct TestStruct {} + impl TestTrait for TestStruct { + fn test_method(&self) {} + } + } + ", + r" + use dep::test_mod::TestTrait as _; + + fn main() { + let test_struct = dep::test_mod::TestStruct {}; + test_struct.test_method() + } + ", + "Import `dep::test_mod::TestTrait as _`", + ); + + check_assist_by_label( auto_import, r" //- /main.rs crate:main deps:dep @@ -915,12 +1096,41 @@ fn main() { test_struct.test_method() } ", + "Import `dep::test_mod::TestTrait`", ); } #[test] fn assoc_fn_cross_crate() { - check_assist( + check_assist_by_label( + auto_import, + r" + //- /main.rs crate:main deps:dep + fn main() { + dep::test_mod::TestStruct::test_func$0tion + } + //- /dep.rs crate:dep + pub mod test_mod { + pub trait TestTrait { + fn test_function(); + } + pub struct TestStruct {} + impl TestTrait for TestStruct { + fn test_function() {} + } + } + ", + r" + use dep::test_mod::TestTrait as _; + + fn main() { + dep::test_mod::TestStruct::test_function + } + ", + "Import `dep::test_mod::TestTrait as _`", + ); + + check_assist_by_label( auto_import, r" //- /main.rs crate:main deps:dep @@ -945,12 +1155,41 @@ fn main() { dep::test_mod::TestStruct::test_function } ", + "Import `dep::test_mod::TestTrait`", ); } #[test] fn assoc_const_cross_crate() { - check_assist( + check_assist_by_label( + auto_import, + r" + //- /main.rs crate:main deps:dep + fn main() { + dep::test_mod::TestStruct::CONST$0 + } + //- /dep.rs crate:dep + pub mod test_mod { + pub trait TestTrait { + const CONST: bool; + } + pub struct TestStruct {} + impl TestTrait for TestStruct { + const CONST: bool = true; + } + } + ", + r" + use dep::test_mod::TestTrait as _; + + fn main() { + dep::test_mod::TestStruct::CONST + } + ", + "Import `dep::test_mod::TestTrait as _`", + ); + + check_assist_by_label( auto_import, r" //- /main.rs crate:main deps:dep @@ -975,6 +1214,7 @@ fn main() { dep::test_mod::TestStruct::CONST } ", + "Import `dep::test_mod::TestTrait`", ); } diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/bool_to_enum.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/bool_to_enum.rs new file mode 100644 index 00000000000..082839118c5 --- /dev/null +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/bool_to_enum.rs @@ -0,0 +1,1672 @@ +use hir::ModuleDef; +use ide_db::{ + assists::{AssistId, AssistKind}, + defs::Definition, + helpers::mod_path_to_ast, + imports::insert_use::{insert_use, ImportScope}, + search::{FileReference, UsageSearchResult}, + source_change::SourceChangeBuilder, + FxHashSet, +}; +use itertools::Itertools; +use syntax::{ + ast::{ + self, + edit::IndentLevel, + edit_in_place::{AttrsOwnerEdit, Indent}, + make, HasName, + }, + ted, AstNode, NodeOrToken, SyntaxKind, SyntaxNode, T, +}; +use text_edit::TextRange; + +use crate::assist_context::{AssistContext, Assists}; + +// Assist: bool_to_enum +// +// This converts boolean local variables, fields, constants, and statics into a new +// enum with two variants `Bool::True` and `Bool::False`, as well as replacing +// all assignments with the variants and replacing all usages with `== Bool::True` or +// `== Bool::False`. +// +// ``` +// fn main() { +// let $0bool = true; +// +// if bool { +// println!("foo"); +// } +// } +// ``` +// -> +// ``` +// #[derive(PartialEq, Eq)] +// enum Bool { True, False } +// +// fn main() { +// let bool = Bool::True; +// +// if bool == Bool::True { +// println!("foo"); +// } +// } +// ``` +pub(crate) fn bool_to_enum(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()> { + let BoolNodeData { target_node, name, ty_annotation, initializer, definition } = + find_bool_node(ctx)?; + let target_module = ctx.sema.scope(&target_node)?.module().nearest_non_block_module(ctx.db()); + + let target = name.syntax().text_range(); + acc.add( + AssistId("bool_to_enum", AssistKind::RefactorRewrite), + "Convert boolean to enum", + target, + |edit| { + if let Some(ty) = &ty_annotation { + cov_mark::hit!(replaces_ty_annotation); + edit.replace(ty.syntax().text_range(), "Bool"); + } + + if let Some(initializer) = initializer { + replace_bool_expr(edit, initializer); + } + + let usages = definition.usages(&ctx.sema).all(); + add_enum_def(edit, ctx, &usages, target_node, &target_module); + replace_usages(edit, ctx, &usages, definition, &target_module); + }, + ) +} + +struct BoolNodeData { + target_node: SyntaxNode, + name: ast::Name, + ty_annotation: Option<ast::Type>, + initializer: Option<ast::Expr>, + definition: Definition, +} + +/// Attempts to find an appropriate node to apply the action to. +fn find_bool_node(ctx: &AssistContext<'_>) -> Option<BoolNodeData> { + let name: ast::Name = ctx.find_node_at_offset()?; + + if let Some(let_stmt) = name.syntax().ancestors().find_map(ast::LetStmt::cast) { + let bind_pat = match let_stmt.pat()? { + ast::Pat::IdentPat(pat) => pat, + _ => { + cov_mark::hit!(not_applicable_in_non_ident_pat); + return None; + } + }; + let def = ctx.sema.to_def(&bind_pat)?; + if !def.ty(ctx.db()).is_bool() { + cov_mark::hit!(not_applicable_non_bool_local); + return None; + } + + Some(BoolNodeData { + target_node: let_stmt.syntax().clone(), + name, + ty_annotation: let_stmt.ty(), + initializer: let_stmt.initializer(), + definition: Definition::Local(def), + }) + } else if let Some(const_) = name.syntax().parent().and_then(ast::Const::cast) { + let def = ctx.sema.to_def(&const_)?; + if !def.ty(ctx.db()).is_bool() { + cov_mark::hit!(not_applicable_non_bool_const); + return None; + } + + Some(BoolNodeData { + target_node: const_.syntax().clone(), + name, + ty_annotation: const_.ty(), + initializer: const_.body(), + definition: Definition::Const(def), + }) + } else if let Some(static_) = name.syntax().parent().and_then(ast::Static::cast) { + let def = ctx.sema.to_def(&static_)?; + if !def.ty(ctx.db()).is_bool() { + cov_mark::hit!(not_applicable_non_bool_static); + return None; + } + + Some(BoolNodeData { + target_node: static_.syntax().clone(), + name, + ty_annotation: static_.ty(), + initializer: static_.body(), + definition: Definition::Static(def), + }) + } else { + let field = name.syntax().parent().and_then(ast::RecordField::cast)?; + if field.name()? != name { + return None; + } + + let adt = field.syntax().ancestors().find_map(ast::Adt::cast)?; + let def = ctx.sema.to_def(&field)?; + if !def.ty(ctx.db()).is_bool() { + cov_mark::hit!(not_applicable_non_bool_field); + return None; + } + Some(BoolNodeData { + target_node: adt.syntax().clone(), + name, + ty_annotation: field.ty(), + initializer: None, + definition: Definition::Field(def), + }) + } +} + +fn replace_bool_expr(edit: &mut SourceChangeBuilder, expr: ast::Expr) { + let expr_range = expr.syntax().text_range(); + let enum_expr = bool_expr_to_enum_expr(expr); + edit.replace(expr_range, enum_expr.syntax().text()) +} + +/// Converts an expression of type `bool` to one of the new enum type. +fn bool_expr_to_enum_expr(expr: ast::Expr) -> ast::Expr { + let true_expr = make::expr_path(make::path_from_text("Bool::True")).clone_for_update(); + let false_expr = make::expr_path(make::path_from_text("Bool::False")).clone_for_update(); + + if let ast::Expr::Literal(literal) = &expr { + match literal.kind() { + ast::LiteralKind::Bool(true) => true_expr, + ast::LiteralKind::Bool(false) => false_expr, + _ => expr, + } + } else { + make::expr_if( + expr, + make::tail_only_block_expr(true_expr), + Some(ast::ElseBranch::Block(make::tail_only_block_expr(false_expr))), + ) + .clone_for_update() + } +} + +/// Replaces all usages of the target identifier, both when read and written to. +fn replace_usages( + edit: &mut SourceChangeBuilder, + ctx: &AssistContext<'_>, + usages: &UsageSearchResult, + target_definition: Definition, + target_module: &hir::Module, +) { + for (file_id, references) in usages.iter() { + edit.edit_file(*file_id); + + let refs_with_imports = + augment_references_with_imports(edit, ctx, references, target_module); + + refs_with_imports.into_iter().rev().for_each( + |FileReferenceWithImport { range, old_name, new_name, import_data }| { + // replace the usages in patterns and expressions + if let Some(ident_pat) = old_name.syntax().ancestors().find_map(ast::IdentPat::cast) + { + cov_mark::hit!(replaces_record_pat_shorthand); + + let definition = ctx.sema.to_def(&ident_pat).map(Definition::Local); + if let Some(def) = definition { + replace_usages( + edit, + ctx, + &def.usages(&ctx.sema).all(), + target_definition, + target_module, + ) + } + } else if let Some(initializer) = find_assignment_usage(&new_name) { + cov_mark::hit!(replaces_assignment); + + replace_bool_expr(edit, initializer); + } else if let Some((prefix_expr, inner_expr)) = find_negated_usage(&new_name) { + cov_mark::hit!(replaces_negation); + + edit.replace( + prefix_expr.syntax().text_range(), + format!("{} == Bool::False", inner_expr), + ); + } else if let Some((record_field, initializer)) = old_name + .as_name_ref() + .and_then(ast::RecordExprField::for_field_name) + .and_then(|record_field| ctx.sema.resolve_record_field(&record_field)) + .and_then(|(got_field, _, _)| { + find_record_expr_usage(&new_name, got_field, target_definition) + }) + { + cov_mark::hit!(replaces_record_expr); + + let record_field = edit.make_mut(record_field); + let enum_expr = bool_expr_to_enum_expr(initializer); + record_field.replace_expr(enum_expr); + } else if let Some(pat) = find_record_pat_field_usage(&old_name) { + match pat { + ast::Pat::IdentPat(ident_pat) => { + cov_mark::hit!(replaces_record_pat); + + let definition = ctx.sema.to_def(&ident_pat).map(Definition::Local); + if let Some(def) = definition { + replace_usages( + edit, + ctx, + &def.usages(&ctx.sema).all(), + target_definition, + target_module, + ) + } + } + ast::Pat::LiteralPat(literal_pat) => { + cov_mark::hit!(replaces_literal_pat); + + if let Some(expr) = literal_pat.literal().and_then(|literal| { + literal.syntax().ancestors().find_map(ast::Expr::cast) + }) { + replace_bool_expr(edit, expr); + } + } + _ => (), + } + } else if let Some((ty_annotation, initializer)) = find_assoc_const_usage(&new_name) + { + edit.replace(ty_annotation.syntax().text_range(), "Bool"); + replace_bool_expr(edit, initializer); + } else if let Some(receiver) = find_method_call_expr_usage(&new_name) { + edit.replace( + receiver.syntax().text_range(), + format!("({} == Bool::True)", receiver), + ); + } else if new_name.syntax().ancestors().find_map(ast::UseTree::cast).is_none() { + // for any other usage in an expression, replace it with a check that it is the true variant + if let Some((record_field, expr)) = new_name + .as_name_ref() + .and_then(ast::RecordExprField::for_field_name) + .and_then(|record_field| { + record_field.expr().map(|expr| (record_field, expr)) + }) + { + record_field.replace_expr( + make::expr_bin_op( + expr, + ast::BinaryOp::CmpOp(ast::CmpOp::Eq { negated: false }), + make::expr_path(make::path_from_text("Bool::True")), + ) + .clone_for_update(), + ); + } else { + edit.replace(range, format!("{} == Bool::True", new_name.text())); + } + } + + // add imports across modules where needed + if let Some((import_scope, path)) = import_data { + insert_use(&import_scope, path, &ctx.config.insert_use); + } + }, + ) + } +} + +struct FileReferenceWithImport { + range: TextRange, + old_name: ast::NameLike, + new_name: ast::NameLike, + import_data: Option<(ImportScope, ast::Path)>, +} + +fn augment_references_with_imports( + edit: &mut SourceChangeBuilder, + ctx: &AssistContext<'_>, + references: &[FileReference], + target_module: &hir::Module, +) -> Vec<FileReferenceWithImport> { + let mut visited_modules = FxHashSet::default(); + + references + .iter() + .filter_map(|FileReference { range, name, .. }| { + ctx.sema.scope(name.syntax()).map(|scope| (*range, name, scope.module())) + }) + .map(|(range, name, ref_module)| { + let old_name = name.clone(); + let new_name = edit.make_mut(name.clone()); + + // if the referenced module is not the same as the target one and has not been seen before, add an import + let import_data = if ref_module.nearest_non_block_module(ctx.db()) != *target_module + && !visited_modules.contains(&ref_module) + { + visited_modules.insert(ref_module); + + let import_scope = + ImportScope::find_insert_use_container(new_name.syntax(), &ctx.sema); + let path = ref_module + .find_use_path_prefixed( + ctx.sema.db, + ModuleDef::Module(*target_module), + ctx.config.insert_use.prefix_kind, + ctx.config.prefer_no_std, + ) + .map(|mod_path| { + make::path_concat(mod_path_to_ast(&mod_path), make::path_from_text("Bool")) + }); + + import_scope.zip(path) + } else { + None + }; + + FileReferenceWithImport { range, old_name, new_name, import_data } + }) + .collect() +} + +fn find_assignment_usage(name: &ast::NameLike) -> Option<ast::Expr> { + let bin_expr = name.syntax().ancestors().find_map(ast::BinExpr::cast)?; + + if !bin_expr.lhs()?.syntax().descendants().contains(name.syntax()) { + cov_mark::hit!(dont_assign_incorrect_ref); + return None; + } + + if let Some(ast::BinaryOp::Assignment { op: None }) = bin_expr.op_kind() { + bin_expr.rhs() + } else { + None + } +} + +fn find_negated_usage(name: &ast::NameLike) -> Option<(ast::PrefixExpr, ast::Expr)> { + let prefix_expr = name.syntax().ancestors().find_map(ast::PrefixExpr::cast)?; + + if !matches!(prefix_expr.expr()?, ast::Expr::PathExpr(_) | ast::Expr::FieldExpr(_)) { + cov_mark::hit!(dont_overwrite_expression_inside_negation); + return None; + } + + if let Some(ast::UnaryOp::Not) = prefix_expr.op_kind() { + let inner_expr = prefix_expr.expr()?; + Some((prefix_expr, inner_expr)) + } else { + None + } +} + +fn find_record_expr_usage( + name: &ast::NameLike, + got_field: hir::Field, + target_definition: Definition, +) -> Option<(ast::RecordExprField, ast::Expr)> { + let name_ref = name.as_name_ref()?; + let record_field = ast::RecordExprField::for_field_name(name_ref)?; + let initializer = record_field.expr()?; + + if let Definition::Field(expected_field) = target_definition { + if got_field != expected_field { + return None; + } + } + + Some((record_field, initializer)) +} + +fn find_record_pat_field_usage(name: &ast::NameLike) -> Option<ast::Pat> { + let record_pat_field = name.syntax().parent().and_then(ast::RecordPatField::cast)?; + let pat = record_pat_field.pat()?; + + match pat { + ast::Pat::IdentPat(_) | ast::Pat::LiteralPat(_) | ast::Pat::WildcardPat(_) => Some(pat), + _ => None, + } +} + +fn find_assoc_const_usage(name: &ast::NameLike) -> Option<(ast::Type, ast::Expr)> { + let const_ = name.syntax().parent().and_then(ast::Const::cast)?; + if const_.syntax().parent().and_then(ast::AssocItemList::cast).is_none() { + return None; + } + + Some((const_.ty()?, const_.body()?)) +} + +fn find_method_call_expr_usage(name: &ast::NameLike) -> Option<ast::Expr> { + let method_call = name.syntax().ancestors().find_map(ast::MethodCallExpr::cast)?; + let receiver = method_call.receiver()?; + + if !receiver.syntax().descendants().contains(name.syntax()) { + return None; + } + + Some(receiver) +} + +/// Adds the definition of the new enum before the target node. +fn add_enum_def( + edit: &mut SourceChangeBuilder, + ctx: &AssistContext<'_>, + usages: &UsageSearchResult, + target_node: SyntaxNode, + target_module: &hir::Module, +) { + let make_enum_pub = usages + .iter() + .flat_map(|(_, refs)| refs) + .filter_map(|FileReference { name, .. }| { + ctx.sema.scope(name.syntax()).map(|scope| scope.module()) + }) + .any(|module| module.nearest_non_block_module(ctx.db()) != *target_module); + let enum_def = make_bool_enum(make_enum_pub); + + let insert_before = node_to_insert_before(target_node); + let indent = IndentLevel::from_node(&insert_before); + enum_def.reindent_to(indent); + + ted::insert_all( + ted::Position::before(&edit.make_syntax_mut(insert_before)), + vec![ + enum_def.syntax().clone().into(), + make::tokens::whitespace(&format!("\n\n{indent}")).into(), + ], + ); +} + +/// Finds where to put the new enum definition. +/// Tries to find the ast node at the nearest module or at top-level, otherwise just +/// returns the input node. +fn node_to_insert_before(target_node: SyntaxNode) -> SyntaxNode { + target_node + .ancestors() + .take_while(|it| !matches!(it.kind(), SyntaxKind::MODULE | SyntaxKind::SOURCE_FILE)) + .filter(|it| ast::Item::can_cast(it.kind())) + .last() + .unwrap_or(target_node) +} + +fn make_bool_enum(make_pub: bool) -> ast::Enum { + let enum_def = make::enum_( + if make_pub { Some(make::visibility_pub()) } else { None }, + make::name("Bool"), + make::variant_list(vec![ + make::variant(make::name("True"), None), + make::variant(make::name("False"), None), + ]), + ) + .clone_for_update(); + + let derive_eq = make::attr_outer(make::meta_token_tree( + make::ext::ident_path("derive"), + make::token_tree( + T!['('], + vec![ + NodeOrToken::Token(make::tokens::ident("PartialEq")), + NodeOrToken::Token(make::token(T![,])), + NodeOrToken::Token(make::tokens::single_space()), + NodeOrToken::Token(make::tokens::ident("Eq")), + ], + ), + )) + .clone_for_update(); + enum_def.add_attr(derive_eq); + + enum_def +} + +#[cfg(test)] +mod tests { + use super::*; + + use crate::tests::{check_assist, check_assist_not_applicable}; + + #[test] + fn local_variable_with_usage() { + check_assist( + bool_to_enum, + r#" +fn main() { + let $0foo = true; + + if foo { + println!("foo"); + } +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +fn main() { + let foo = Bool::True; + + if foo == Bool::True { + println!("foo"); + } +} +"#, + ) + } + + #[test] + fn local_variable_with_usage_negated() { + cov_mark::check!(replaces_negation); + check_assist( + bool_to_enum, + r#" +fn main() { + let $0foo = true; + + if !foo { + println!("foo"); + } +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +fn main() { + let foo = Bool::True; + + if foo == Bool::False { + println!("foo"); + } +} +"#, + ) + } + + #[test] + fn local_variable_with_type_annotation() { + cov_mark::check!(replaces_ty_annotation); + check_assist( + bool_to_enum, + r#" +fn main() { + let $0foo: bool = false; +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +fn main() { + let foo: Bool = Bool::False; +} +"#, + ) + } + + #[test] + fn local_variable_with_non_literal_initializer() { + check_assist( + bool_to_enum, + r#" +fn main() { + let $0foo = 1 == 2; +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +fn main() { + let foo = if 1 == 2 { Bool::True } else { Bool::False }; +} +"#, + ) + } + + #[test] + fn local_variable_binexpr_usage() { + check_assist( + bool_to_enum, + r#" +fn main() { + let $0foo = false; + let bar = true; + + if !foo && bar { + println!("foobar"); + } +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +fn main() { + let foo = Bool::False; + let bar = true; + + if foo == Bool::False && bar { + println!("foobar"); + } +} +"#, + ) + } + + #[test] + fn local_variable_unop_usage() { + check_assist( + bool_to_enum, + r#" +fn main() { + let $0foo = true; + + if *&foo { + println!("foobar"); + } +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +fn main() { + let foo = Bool::True; + + if *&foo == Bool::True { + println!("foobar"); + } +} +"#, + ) + } + + #[test] + fn local_variable_assigned_later() { + cov_mark::check!(replaces_assignment); + check_assist( + bool_to_enum, + r#" +fn main() { + let $0foo: bool; + foo = true; +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +fn main() { + let foo: Bool; + foo = Bool::True; +} +"#, + ) + } + + #[test] + fn local_variable_does_not_apply_recursively() { + check_assist( + bool_to_enum, + r#" +fn main() { + let $0foo = true; + let bar = !foo; + + if bar { + println!("bar"); + } +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +fn main() { + let foo = Bool::True; + let bar = foo == Bool::False; + + if bar { + println!("bar"); + } +} +"#, + ) + } + + #[test] + fn local_variable_nested_in_negation() { + cov_mark::check!(dont_overwrite_expression_inside_negation); + check_assist( + bool_to_enum, + r#" +fn main() { + if !"foo".chars().any(|c| { + let $0foo = true; + foo + }) { + println!("foo"); + } +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +fn main() { + if !"foo".chars().any(|c| { + let foo = Bool::True; + foo == Bool::True + }) { + println!("foo"); + } +} +"#, + ) + } + + #[test] + fn local_variable_non_bool() { + cov_mark::check!(not_applicable_non_bool_local); + check_assist_not_applicable( + bool_to_enum, + r#" +fn main() { + let $0foo = 1; +} +"#, + ) + } + + #[test] + fn local_variable_cursor_not_on_ident() { + check_assist_not_applicable( + bool_to_enum, + r#" +fn main() { + let foo = $0true; +} +"#, + ) + } + + #[test] + fn local_variable_non_ident_pat() { + cov_mark::check!(not_applicable_in_non_ident_pat); + check_assist_not_applicable( + bool_to_enum, + r#" +fn main() { + let ($0foo, bar) = (true, false); +} +"#, + ) + } + + #[test] + fn field_struct_basic() { + cov_mark::check!(replaces_record_expr); + check_assist( + bool_to_enum, + r#" +struct Foo { + $0bar: bool, + baz: bool, +} + +fn main() { + let foo = Foo { bar: true, baz: false }; + + if foo.bar { + println!("foo"); + } +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +struct Foo { + bar: Bool, + baz: bool, +} + +fn main() { + let foo = Foo { bar: Bool::True, baz: false }; + + if foo.bar == Bool::True { + println!("foo"); + } +} +"#, + ) + } + + #[test] + fn field_enum_basic() { + cov_mark::check!(replaces_record_pat); + check_assist( + bool_to_enum, + r#" +enum Foo { + Foo, + Bar { $0bar: bool }, +} + +fn main() { + let foo = Foo::Bar { bar: true }; + + if let Foo::Bar { bar: baz } = foo { + if baz { + println!("foo"); + } + } +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +enum Foo { + Foo, + Bar { bar: Bool }, +} + +fn main() { + let foo = Foo::Bar { bar: Bool::True }; + + if let Foo::Bar { bar: baz } = foo { + if baz == Bool::True { + println!("foo"); + } + } +} +"#, + ) + } + + #[test] + fn field_enum_cross_file() { + check_assist( + bool_to_enum, + r#" +//- /foo.rs +pub enum Foo { + Foo, + Bar { $0bar: bool }, +} + +fn foo() { + let foo = Foo::Bar { bar: true }; +} + +//- /main.rs +use foo::Foo; + +mod foo; + +fn main() { + let foo = Foo::Bar { bar: false }; +} +"#, + r#" +//- /foo.rs +#[derive(PartialEq, Eq)] +pub enum Bool { True, False } + +pub enum Foo { + Foo, + Bar { bar: Bool }, +} + +fn foo() { + let foo = Foo::Bar { bar: Bool::True }; +} + +//- /main.rs +use foo::{Foo, Bool}; + +mod foo; + +fn main() { + let foo = Foo::Bar { bar: Bool::False }; +} +"#, + ) + } + + #[test] + fn field_enum_shorthand() { + cov_mark::check!(replaces_record_pat_shorthand); + check_assist( + bool_to_enum, + r#" +enum Foo { + Foo, + Bar { $0bar: bool }, +} + +fn main() { + let foo = Foo::Bar { bar: true }; + + match foo { + Foo::Bar { bar } => { + if bar { + println!("foo"); + } + } + _ => (), + } +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +enum Foo { + Foo, + Bar { bar: Bool }, +} + +fn main() { + let foo = Foo::Bar { bar: Bool::True }; + + match foo { + Foo::Bar { bar } => { + if bar == Bool::True { + println!("foo"); + } + } + _ => (), + } +} +"#, + ) + } + + #[test] + fn field_enum_replaces_literal_patterns() { + cov_mark::check!(replaces_literal_pat); + check_assist( + bool_to_enum, + r#" +enum Foo { + Foo, + Bar { $0bar: bool }, +} + +fn main() { + let foo = Foo::Bar { bar: true }; + + if let Foo::Bar { bar: true } = foo { + println!("foo"); + } +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +enum Foo { + Foo, + Bar { bar: Bool }, +} + +fn main() { + let foo = Foo::Bar { bar: Bool::True }; + + if let Foo::Bar { bar: Bool::True } = foo { + println!("foo"); + } +} +"#, + ) + } + + #[test] + fn field_enum_keeps_wildcard_patterns() { + check_assist( + bool_to_enum, + r#" +enum Foo { + Foo, + Bar { $0bar: bool }, +} + +fn main() { + let foo = Foo::Bar { bar: true }; + + if let Foo::Bar { bar: _ } = foo { + println!("foo"); + } +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +enum Foo { + Foo, + Bar { bar: Bool }, +} + +fn main() { + let foo = Foo::Bar { bar: Bool::True }; + + if let Foo::Bar { bar: _ } = foo { + println!("foo"); + } +} +"#, + ) + } + + #[test] + fn field_union_basic() { + check_assist( + bool_to_enum, + r#" +union Foo { + $0foo: bool, + bar: usize, +} + +fn main() { + let foo = Foo { foo: true }; + + if unsafe { foo.foo } { + println!("foo"); + } +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +union Foo { + foo: Bool, + bar: usize, +} + +fn main() { + let foo = Foo { foo: Bool::True }; + + if unsafe { foo.foo == Bool::True } { + println!("foo"); + } +} +"#, + ) + } + + #[test] + fn field_negated() { + check_assist( + bool_to_enum, + r#" +struct Foo { + $0bar: bool, +} + +fn main() { + let foo = Foo { bar: false }; + + if !foo.bar { + println!("foo"); + } +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +struct Foo { + bar: Bool, +} + +fn main() { + let foo = Foo { bar: Bool::False }; + + if foo.bar == Bool::False { + println!("foo"); + } +} +"#, + ) + } + + #[test] + fn field_in_mod_properly_indented() { + check_assist( + bool_to_enum, + r#" +mod foo { + struct Bar { + $0baz: bool, + } + + impl Bar { + fn new(baz: bool) -> Self { + Self { baz } + } + } +} +"#, + r#" +mod foo { + #[derive(PartialEq, Eq)] + enum Bool { True, False } + + struct Bar { + baz: Bool, + } + + impl Bar { + fn new(baz: bool) -> Self { + Self { baz: if baz { Bool::True } else { Bool::False } } + } + } +} +"#, + ) + } + + #[test] + fn field_multiple_initializations() { + check_assist( + bool_to_enum, + r#" +struct Foo { + $0bar: bool, + baz: bool, +} + +fn main() { + let foo1 = Foo { bar: true, baz: false }; + let foo2 = Foo { bar: false, baz: false }; + + if foo1.bar && foo2.bar { + println!("foo"); + } +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +struct Foo { + bar: Bool, + baz: bool, +} + +fn main() { + let foo1 = Foo { bar: Bool::True, baz: false }; + let foo2 = Foo { bar: Bool::False, baz: false }; + + if foo1.bar == Bool::True && foo2.bar == Bool::True { + println!("foo"); + } +} +"#, + ) + } + + #[test] + fn field_assigned_to_another() { + cov_mark::check!(dont_assign_incorrect_ref); + check_assist( + bool_to_enum, + r#" +struct Foo { + $0foo: bool, +} + +struct Bar { + bar: bool, +} + +fn main() { + let foo = Foo { foo: true }; + let mut bar = Bar { bar: true }; + + bar.bar = foo.foo; +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +struct Foo { + foo: Bool, +} + +struct Bar { + bar: bool, +} + +fn main() { + let foo = Foo { foo: Bool::True }; + let mut bar = Bar { bar: true }; + + bar.bar = foo.foo == Bool::True; +} +"#, + ) + } + + #[test] + fn field_initialized_with_other() { + check_assist( + bool_to_enum, + r#" +struct Foo { + $0foo: bool, +} + +struct Bar { + bar: bool, +} + +fn main() { + let foo = Foo { foo: true }; + let bar = Bar { bar: foo.foo }; +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +struct Foo { + foo: Bool, +} + +struct Bar { + bar: bool, +} + +fn main() { + let foo = Foo { foo: Bool::True }; + let bar = Bar { bar: foo.foo == Bool::True }; +} +"#, + ) + } + + #[test] + fn field_method_chain_usage() { + check_assist( + bool_to_enum, + r#" +struct Foo { + $0bool: bool, +} + +fn main() { + let foo = Foo { bool: true }; + + foo.bool.then(|| 2); +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +struct Foo { + bool: Bool, +} + +fn main() { + let foo = Foo { bool: Bool::True }; + + (foo.bool == Bool::True).then(|| 2); +} +"#, + ) + } + + #[test] + fn field_non_bool() { + cov_mark::check!(not_applicable_non_bool_field); + check_assist_not_applicable( + bool_to_enum, + r#" +struct Foo { + $0bar: usize, +} + +fn main() { + let foo = Foo { bar: 1 }; +} +"#, + ) + } + + #[test] + fn const_basic() { + check_assist( + bool_to_enum, + r#" +const $0FOO: bool = false; + +fn main() { + if FOO { + println!("foo"); + } +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +const FOO: Bool = Bool::False; + +fn main() { + if FOO == Bool::True { + println!("foo"); + } +} +"#, + ) + } + + #[test] + fn const_in_module() { + check_assist( + bool_to_enum, + r#" +fn main() { + if foo::FOO { + println!("foo"); + } +} + +mod foo { + pub const $0FOO: bool = true; +} +"#, + r#" +use foo::Bool; + +fn main() { + if foo::FOO == Bool::True { + println!("foo"); + } +} + +mod foo { + #[derive(PartialEq, Eq)] + pub enum Bool { True, False } + + pub const FOO: Bool = Bool::True; +} +"#, + ) + } + + #[test] + fn const_in_module_with_import() { + check_assist( + bool_to_enum, + r#" +fn main() { + use foo::FOO; + + if FOO { + println!("foo"); + } +} + +mod foo { + pub const $0FOO: bool = true; +} +"#, + r#" +use crate::foo::Bool; + +fn main() { + use foo::FOO; + + if FOO == Bool::True { + println!("foo"); + } +} + +mod foo { + #[derive(PartialEq, Eq)] + pub enum Bool { True, False } + + pub const FOO: Bool = Bool::True; +} +"#, + ) + } + + #[test] + fn const_cross_file() { + check_assist( + bool_to_enum, + r#" +//- /main.rs +mod foo; + +fn main() { + if foo::FOO { + println!("foo"); + } +} + +//- /foo.rs +pub const $0FOO: bool = true; +"#, + r#" +//- /main.rs +use foo::Bool; + +mod foo; + +fn main() { + if foo::FOO == Bool::True { + println!("foo"); + } +} + +//- /foo.rs +#[derive(PartialEq, Eq)] +pub enum Bool { True, False } + +pub const FOO: Bool = Bool::True; +"#, + ) + } + + #[test] + fn const_cross_file_and_module() { + check_assist( + bool_to_enum, + r#" +//- /main.rs +mod foo; + +fn main() { + use foo::bar; + + if bar::BAR { + println!("foo"); + } +} + +//- /foo.rs +pub mod bar { + pub const $0BAR: bool = false; +} +"#, + r#" +//- /main.rs +use crate::foo::bar::Bool; + +mod foo; + +fn main() { + use foo::bar; + + if bar::BAR == Bool::True { + println!("foo"); + } +} + +//- /foo.rs +pub mod bar { + #[derive(PartialEq, Eq)] + pub enum Bool { True, False } + + pub const BAR: Bool = Bool::False; +} +"#, + ) + } + + #[test] + fn const_in_impl_cross_file() { + check_assist( + bool_to_enum, + r#" +//- /main.rs +mod foo; + +struct Foo; + +impl Foo { + pub const $0BOOL: bool = true; +} + +//- /foo.rs +use crate::Foo; + +fn foo() -> bool { + Foo::BOOL +} +"#, + r#" +//- /main.rs +mod foo; + +struct Foo; + +#[derive(PartialEq, Eq)] +pub enum Bool { True, False } + +impl Foo { + pub const BOOL: Bool = Bool::True; +} + +//- /foo.rs +use crate::{Foo, Bool}; + +fn foo() -> bool { + Foo::BOOL == Bool::True +} +"#, + ) + } + + #[test] + fn const_in_trait() { + check_assist( + bool_to_enum, + r#" +trait Foo { + const $0BOOL: bool; +} + +impl Foo for usize { + const BOOL: bool = true; +} + +fn main() { + if <usize as Foo>::BOOL { + println!("foo"); + } +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +trait Foo { + const BOOL: Bool; +} + +impl Foo for usize { + const BOOL: Bool = Bool::True; +} + +fn main() { + if <usize as Foo>::BOOL == Bool::True { + println!("foo"); + } +} +"#, + ) + } + + #[test] + fn const_non_bool() { + cov_mark::check!(not_applicable_non_bool_const); + check_assist_not_applicable( + bool_to_enum, + r#" +const $0FOO: &str = "foo"; + +fn main() { + println!("{FOO}"); +} +"#, + ) + } + + #[test] + fn static_basic() { + check_assist( + bool_to_enum, + r#" +static mut $0BOOL: bool = true; + +fn main() { + unsafe { BOOL = false }; + if unsafe { BOOL } { + println!("foo"); + } +} +"#, + r#" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +static mut BOOL: Bool = Bool::True; + +fn main() { + unsafe { BOOL = Bool::False }; + if unsafe { BOOL == Bool::True } { + println!("foo"); + } +} +"#, + ) + } + + #[test] + fn static_non_bool() { + cov_mark::check!(not_applicable_non_bool_static); + check_assist_not_applicable( + bool_to_enum, + r#" +static mut $0FOO: usize = 0; + +fn main() { + if unsafe { FOO } == 0 { + println!("foo"); + } +} +"#, + ) + } + + #[test] + fn not_applicable_to_other_names() { + check_assist_not_applicable(bool_to_enum, "fn $0main() {}") + } +} diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_comment_block.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_comment_block.rs index 1acd5ee9728..3f478ee7d39 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_comment_block.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_comment_block.rs @@ -25,9 +25,7 @@ pub(crate) fn convert_comment_block(acc: &mut Assists, ctx: &AssistContext<'_>) let comment = ctx.find_token_at_offset::<ast::Comment>()?; // Only allow comments which are alone on their line if let Some(prev) = comment.syntax().prev_token() { - if Whitespace::cast(prev).filter(|w| w.text().contains('\n')).is_none() { - return None; - } + Whitespace::cast(prev).filter(|w| w.text().contains('\n'))?; } match comment.kind().shape { @@ -78,7 +76,7 @@ fn line_to_block(acc: &mut Assists, comment: ast::Comment) -> Option<()> { // Establish the target of our edit based on the comments we found let target = TextRange::new( comments[0].syntax().text_range().start(), - comments.last().unwrap().syntax().text_range().end(), + comments.last()?.syntax().text_range().end(), ); acc.add( @@ -91,8 +89,12 @@ fn line_to_block(acc: &mut Assists, comment: ast::Comment) -> Option<()> { // contents of each line comment when they're put into the block comment. let indentation = IndentLevel::from_token(comment.syntax()); - let block_comment_body = - comments.into_iter().map(|c| line_comment_text(indentation, c)).join("\n"); + let block_comment_body = comments + .into_iter() + .map(|c| line_comment_text(indentation, c)) + .collect::<Vec<String>>() + .into_iter() + .join("\n"); let block_prefix = CommentKind { shape: CommentShape::Block, ..comment.kind() }.prefix(); @@ -160,7 +162,8 @@ pub(crate) fn relevant_line_comments(comment: &ast::Comment) -> Vec<Comment> { // // But since such comments aren't idiomatic we're okay with this. pub(crate) fn line_comment_text(indentation: IndentLevel, comm: ast::Comment) -> String { - let contents_without_prefix = comm.text().strip_prefix(comm.prefix()).unwrap(); + let text = comm.text(); + let contents_without_prefix = text.strip_prefix(comm.prefix()).unwrap_or(text); let contents = contents_without_prefix.strip_prefix(' ').unwrap_or(contents_without_prefix); // Don't add the indentation if the line is empty diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_to_guarded_return.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_to_guarded_return.rs index 7d0e424769e..73ba3f5c4cd 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_to_guarded_return.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_to_guarded_return.rs @@ -51,22 +51,7 @@ pub(crate) fn convert_to_guarded_return(acc: &mut Assists, ctx: &AssistContext<' // Check if there is an IfLet that we can handle. let (if_let_pat, cond_expr) = if is_pattern_cond(cond.clone()) { let let_ = single_let(cond)?; - match let_.pat() { - Some(ast::Pat::TupleStructPat(pat)) if pat.fields().count() == 1 => { - let path = pat.path()?; - if path.qualifier().is_some() { - return None; - } - - let bound_ident = pat.fields().next()?; - if !ast::IdentPat::can_cast(bound_ident.syntax().kind()) { - return None; - } - - (Some((path, bound_ident)), let_.expr()?) - } - _ => return None, // Unsupported IfLet. - } + (Some(let_.pat()?), let_.expr()?) } else { (None, cond) }; @@ -136,11 +121,10 @@ pub(crate) fn convert_to_guarded_return(acc: &mut Assists, ctx: &AssistContext<' }; new_expr.syntax().clone_for_update() } - Some((path, bound_ident)) => { + Some(pat) => { // If-let. - let pat = make::tuple_struct_pat(path, once(bound_ident)); let let_else_stmt = make::let_else_stmt( - pat.into(), + pat, None, cond_expr, ast::make::tail_only_block_expr(early_expression), @@ -443,6 +427,60 @@ fn main() { } #[test] + fn convert_arbitrary_if_let_patterns() { + check_assist( + convert_to_guarded_return, + r#" +fn main() { + $0if let None = Some(92) { + foo(); + } +} +"#, + r#" +fn main() { + let None = Some(92) else { return }; + foo(); +} +"#, + ); + + check_assist( + convert_to_guarded_return, + r#" +fn main() { + $0if let [1, x] = [1, 92] { + foo(x); + } +} +"#, + r#" +fn main() { + let [1, x] = [1, 92] else { return }; + foo(x); +} +"#, + ); + + check_assist( + convert_to_guarded_return, + r#" +fn main() { + $0if let (Some(x), None) = (Some(92), None) { + foo(x); + } +} +"#, + r#" +fn main() { + let (Some(x), None) = (Some(92), None) else { return }; + foo(x); +} +"#, + ); + } + + #[test] fn ignore_already_converted_if() { check_assist_not_applicable( convert_to_guarded_return, diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_tuple_return_type_to_struct.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_tuple_return_type_to_struct.rs new file mode 100644 index 00000000000..32db5ee8dab --- /dev/null +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_tuple_return_type_to_struct.rs @@ -0,0 +1,886 @@ +use either::Either; +use hir::ModuleDef; +use ide_db::{ + assists::{AssistId, AssistKind}, + defs::Definition, + helpers::mod_path_to_ast, + imports::insert_use::{insert_use, ImportScope}, + search::{FileReference, UsageSearchResult}, + source_change::SourceChangeBuilder, + syntax_helpers::node_ext::{for_each_tail_expr, walk_expr}, + FxHashSet, +}; +use syntax::{ + ast::{self, edit::IndentLevel, edit_in_place::Indent, make, HasName}, + match_ast, ted, AstNode, SyntaxNode, +}; + +use crate::assist_context::{AssistContext, Assists}; + +// Assist: convert_tuple_return_type_to_struct +// +// This converts the return type of a function from a tuple type +// into a tuple struct and updates the body accordingly. +// +// ``` +// fn bar() { +// let (a, b, c) = foo(); +// } +// +// fn foo() -> ($0u32, u32, u32) { +// (1, 2, 3) +// } +// ``` +// -> +// ``` +// fn bar() { +// let FooResult(a, b, c) = foo(); +// } +// +// struct FooResult(u32, u32, u32); +// +// fn foo() -> FooResult { +// FooResult(1, 2, 3) +// } +// ``` +pub(crate) fn convert_tuple_return_type_to_struct( + acc: &mut Assists, + ctx: &AssistContext<'_>, +) -> Option<()> { + let ret_type = ctx.find_node_at_offset::<ast::RetType>()?; + let type_ref = ret_type.ty()?; + + let ast::Type::TupleType(tuple_ty) = &type_ref else { return None }; + if tuple_ty.fields().any(|field| matches!(field, ast::Type::ImplTraitType(_))) { + return None; + } + + let fn_ = ret_type.syntax().parent().and_then(ast::Fn::cast)?; + let fn_def = ctx.sema.to_def(&fn_)?; + let fn_name = fn_.name()?; + let target_module = ctx.sema.scope(fn_.syntax())?.module().nearest_non_block_module(ctx.db()); + + let target = type_ref.syntax().text_range(); + acc.add( + AssistId("convert_tuple_return_type_to_struct", AssistKind::RefactorRewrite), + "Convert tuple return type to tuple struct", + target, + move |edit| { + let ret_type = edit.make_mut(ret_type); + let fn_ = edit.make_mut(fn_); + + let usages = Definition::Function(fn_def).usages(&ctx.sema).all(); + let struct_name = format!("{}Result", stdx::to_camel_case(&fn_name.to_string())); + let parent = fn_.syntax().ancestors().find_map(<Either<ast::Impl, ast::Trait>>::cast); + add_tuple_struct_def( + edit, + ctx, + &usages, + parent.as_ref().map(|it| it.syntax()).unwrap_or(fn_.syntax()), + tuple_ty, + &struct_name, + &target_module, + ); + + ted::replace( + ret_type.syntax(), + make::ret_type(make::ty(&struct_name)).syntax().clone_for_update(), + ); + + if let Some(fn_body) = fn_.body() { + replace_body_return_values(ast::Expr::BlockExpr(fn_body), &struct_name); + } + + replace_usages(edit, ctx, &usages, &struct_name, &target_module); + }, + ) +} + +/// Replaces tuple usages with the corresponding tuple struct pattern. +fn replace_usages( + edit: &mut SourceChangeBuilder, + ctx: &AssistContext<'_>, + usages: &UsageSearchResult, + struct_name: &str, + target_module: &hir::Module, +) { + for (file_id, references) in usages.iter() { + edit.edit_file(*file_id); + + let refs_with_imports = + augment_references_with_imports(edit, ctx, references, struct_name, target_module); + + refs_with_imports.into_iter().rev().for_each(|(name, import_data)| { + if let Some(fn_) = name.syntax().parent().and_then(ast::Fn::cast) { + cov_mark::hit!(replace_trait_impl_fns); + + if let Some(ret_type) = fn_.ret_type() { + ted::replace( + ret_type.syntax(), + make::ret_type(make::ty(struct_name)).syntax().clone_for_update(), + ); + } + + if let Some(fn_body) = fn_.body() { + replace_body_return_values(ast::Expr::BlockExpr(fn_body), struct_name); + } + } else { + // replace tuple patterns + let pats = name + .syntax() + .ancestors() + .find(|node| { + ast::CallExpr::can_cast(node.kind()) + || ast::MethodCallExpr::can_cast(node.kind()) + }) + .and_then(|node| node.parent()) + .and_then(node_to_pats) + .unwrap_or(Vec::new()); + + let tuple_pats = pats.iter().filter_map(|pat| match pat { + ast::Pat::TuplePat(tuple_pat) => Some(tuple_pat), + _ => None, + }); + for tuple_pat in tuple_pats { + ted::replace( + tuple_pat.syntax(), + make::tuple_struct_pat( + make::path_from_text(struct_name), + tuple_pat.fields(), + ) + .clone_for_update() + .syntax(), + ); + } + } + // add imports across modules where needed + if let Some((import_scope, path)) = import_data { + insert_use(&import_scope, path, &ctx.config.insert_use); + } + }) + } +} + +fn node_to_pats(node: SyntaxNode) -> Option<Vec<ast::Pat>> { + match_ast! { + match node { + ast::LetStmt(it) => it.pat().map(|pat| vec![pat]), + ast::LetExpr(it) => it.pat().map(|pat| vec![pat]), + ast::MatchExpr(it) => it.match_arm_list().map(|arm_list| { + arm_list.arms().filter_map(|arm| arm.pat()).collect() + }), + _ => None, + } + } +} + +fn augment_references_with_imports( + edit: &mut SourceChangeBuilder, + ctx: &AssistContext<'_>, + references: &[FileReference], + struct_name: &str, + target_module: &hir::Module, +) -> Vec<(ast::NameLike, Option<(ImportScope, ast::Path)>)> { + let mut visited_modules = FxHashSet::default(); + + references + .iter() + .filter_map(|FileReference { name, .. }| { + ctx.sema.scope(name.syntax()).map(|scope| (name, scope.module())) + }) + .map(|(name, ref_module)| { + let new_name = edit.make_mut(name.clone()); + + // if the referenced module is not the same as the target one and has not been seen before, add an import + let import_data = if ref_module.nearest_non_block_module(ctx.db()) != *target_module + && !visited_modules.contains(&ref_module) + { + visited_modules.insert(ref_module); + + let import_scope = + ImportScope::find_insert_use_container(new_name.syntax(), &ctx.sema); + let path = ref_module + .find_use_path_prefixed( + ctx.sema.db, + ModuleDef::Module(*target_module), + ctx.config.insert_use.prefix_kind, + ctx.config.prefer_no_std, + ) + .map(|mod_path| { + make::path_concat( + mod_path_to_ast(&mod_path), + make::path_from_text(struct_name), + ) + }); + + import_scope.zip(path) + } else { + None + }; + + (new_name, import_data) + }) + .collect() +} + +// Adds the definition of the tuple struct before the parent function. +fn add_tuple_struct_def( + edit: &mut SourceChangeBuilder, + ctx: &AssistContext<'_>, + usages: &UsageSearchResult, + parent: &SyntaxNode, + tuple_ty: &ast::TupleType, + struct_name: &str, + target_module: &hir::Module, +) { + let make_struct_pub = usages + .iter() + .flat_map(|(_, refs)| refs) + .filter_map(|FileReference { name, .. }| { + ctx.sema.scope(name.syntax()).map(|scope| scope.module()) + }) + .any(|module| module.nearest_non_block_module(ctx.db()) != *target_module); + let visibility = if make_struct_pub { Some(make::visibility_pub()) } else { None }; + + let field_list = ast::FieldList::TupleFieldList(make::tuple_field_list( + tuple_ty.fields().map(|ty| make::tuple_field(visibility.clone(), ty)), + )); + let struct_name = make::name(struct_name); + let struct_def = make::struct_(visibility, struct_name, None, field_list).clone_for_update(); + + let indent = IndentLevel::from_node(parent); + struct_def.reindent_to(indent); + + edit.insert(parent.text_range().start(), format!("{struct_def}\n\n{indent}")); +} + +/// Replaces each returned tuple in `body` with the constructor of the tuple struct named `struct_name`. +fn replace_body_return_values(body: ast::Expr, struct_name: &str) { + let mut exprs_to_wrap = Vec::new(); + + let tail_cb = &mut |e: &_| tail_cb_impl(&mut exprs_to_wrap, e); + walk_expr(&body, &mut |expr| { + if let ast::Expr::ReturnExpr(ret_expr) = expr { + if let Some(ret_expr_arg) = &ret_expr.expr() { + for_each_tail_expr(ret_expr_arg, tail_cb); + } + } + }); + for_each_tail_expr(&body, tail_cb); + + for ret_expr in exprs_to_wrap { + if let ast::Expr::TupleExpr(tuple_expr) = &ret_expr { + let struct_constructor = make::expr_call( + make::expr_path(make::ext::ident_path(struct_name)), + make::arg_list(tuple_expr.fields()), + ) + .clone_for_update(); + ted::replace(ret_expr.syntax(), struct_constructor.syntax()); + } + } +} + +fn tail_cb_impl(acc: &mut Vec<ast::Expr>, e: &ast::Expr) { + match e { + ast::Expr::BreakExpr(break_expr) => { + if let Some(break_expr_arg) = break_expr.expr() { + for_each_tail_expr(&break_expr_arg, &mut |e| tail_cb_impl(acc, e)) + } + } + ast::Expr::ReturnExpr(_) => { + // all return expressions have already been handled by the walk loop + } + e => acc.push(e.clone()), + } +} + +#[cfg(test)] +mod tests { + use super::*; + + use crate::tests::{check_assist, check_assist_not_applicable}; + + #[test] + fn function_basic() { + check_assist( + convert_tuple_return_type_to_struct, + r#" +fn bar() -> $0(&'static str, bool) { + ("bar", true) +} +"#, + r#" +struct BarResult(&'static str, bool); + +fn bar() -> BarResult { + BarResult("bar", true) +} +"#, + ) + } + + #[test] + fn struct_and_usages_indented() { + check_assist( + convert_tuple_return_type_to_struct, + r#" +mod foo { + pub(crate) fn foo() { + let (bar, baz) = bar(); + println!("{bar} {baz}"); + } + + pub(crate) fn bar() -> $0(usize, bool) { + (42, true) + } +} +"#, + r#" +mod foo { + pub(crate) fn foo() { + let BarResult(bar, baz) = bar(); + println!("{bar} {baz}"); + } + + struct BarResult(usize, bool); + + pub(crate) fn bar() -> BarResult { + BarResult(42, true) + } +} +"#, + ) + } + + #[test] + fn field_usage() { + check_assist( + convert_tuple_return_type_to_struct, + r#" +fn bar() -> $0(usize, bool) { + (42, true) +} + +fn main() { + let bar_result = bar(); + println!("{} {}", bar_result.1, bar().0); +} +"#, + r#" +struct BarResult(usize, bool); + +fn bar() -> BarResult { + BarResult(42, true) +} + +fn main() { + let bar_result = bar(); + println!("{} {}", bar_result.1, bar().0); +} +"#, + ) + } + + #[test] + fn method_usage() { + check_assist( + convert_tuple_return_type_to_struct, + r#" +struct Foo; + +impl Foo { + fn foo(&self, x: usize) -> $0(usize, usize) { + (x, x) + } +} + +fn main() { + let foo = Foo {}; + let (x, y) = foo.foo(2); +} +"#, + r#" +struct Foo; + +struct FooResult(usize, usize); + +impl Foo { + fn foo(&self, x: usize) -> FooResult { + FooResult(x, x) + } +} + +fn main() { + let foo = Foo {}; + let FooResult(x, y) = foo.foo(2); +} +"#, + ) + } + + #[test] + fn method_usage_within_same_impl() { + check_assist( + convert_tuple_return_type_to_struct, + r#" +struct Foo; + +impl Foo { + fn new() -> $0(usize, usize) { + (0, 0) + } + + fn foo() { + let (mut foo1, mut foo2) = Self::new(); + } +} +"#, + r#" +struct Foo; + +struct NewResult(usize, usize); + +impl Foo { + fn new() -> NewResult { + NewResult(0, 0) + } + + fn foo() { + let NewResult(mut foo1, mut foo2) = Self::new(); + } +} +"#, + ) + } + + #[test] + fn multiple_usages() { + check_assist( + convert_tuple_return_type_to_struct, + r#" +fn bar() -> $0(usize, usize) { + (42, 24) +} + +fn main() { + let bar_result = bar(); + let (foo, b) = bar(); + let (b, baz) = bar(); + + if foo == b && b == baz { + println!("{} {}", bar_result.1, bar().0); + } +} +"#, + r#" +struct BarResult(usize, usize); + +fn bar() -> BarResult { + BarResult(42, 24) +} + +fn main() { + let bar_result = bar(); + let BarResult(foo, b) = bar(); + let BarResult(b, baz) = bar(); + + if foo == b && b == baz { + println!("{} {}", bar_result.1, bar().0); + } +} +"#, + ) + } + + #[test] + fn usage_match_tuple_pat() { + check_assist( + convert_tuple_return_type_to_struct, + r#" +fn bar() -> $0(usize, bool) { + (42, true) +} + +fn main() { + match bar() { + x if x.0 == 0 => println!("0"), + (x, false) => println!("{x}"), + (42, true) => println!("bar"), + _ => println!("foo"), + } +} +"#, + r#" +struct BarResult(usize, bool); + +fn bar() -> BarResult { + BarResult(42, true) +} + +fn main() { + match bar() { + x if x.0 == 0 => println!("0"), + BarResult(x, false) => println!("{x}"), + BarResult(42, true) => println!("bar"), + _ => println!("foo"), + } +} +"#, + ) + } + + #[test] + fn usage_if_let_tuple_pat() { + check_assist( + convert_tuple_return_type_to_struct, + r#" +fn bar() -> $0(usize, bool) { + (42, true) +} + +fn main() { + if let (42, true) = bar() { + println!("bar") + } +} +"#, + r#" +struct BarResult(usize, bool); + +fn bar() -> BarResult { + BarResult(42, true) +} + +fn main() { + if let BarResult(42, true) = bar() { + println!("bar") + } +} +"#, + ) + } + + #[test] + fn function_nested_outer() { + check_assist( + convert_tuple_return_type_to_struct, + r#" +fn bar() -> $0(usize, bool) { + fn foo() -> (usize, bool) { + (42, true) + } + + foo() +} +"#, + r#" +struct BarResult(usize, bool); + +fn bar() -> BarResult { + fn foo() -> (usize, bool) { + (42, true) + } + + foo() +} +"#, + ) + } + + #[test] + fn function_nested_inner() { + check_assist( + convert_tuple_return_type_to_struct, + r#" +fn bar() -> (usize, bool) { + fn foo() -> $0(usize, bool) { + (42, true) + } + + foo() +} +"#, + r#" +fn bar() -> (usize, bool) { + struct FooResult(usize, bool); + + fn foo() -> FooResult { + FooResult(42, true) + } + + foo() +} +"#, + ) + } + + #[test] + fn trait_impl_and_usage() { + cov_mark::check!(replace_trait_impl_fns); + check_assist( + convert_tuple_return_type_to_struct, + r#" +struct Struct; + +trait Foo { + fn foo(&self) -> $0(usize, bool); +} + +impl Foo for Struct { + fn foo(&self) -> (usize, bool) { + (0, true) + } +} + +fn main() { + let s = Struct {}; + let (foo, bar) = s.foo(); + let (foo, bar) = Struct::foo(&s); + println!("{foo} {bar}"); +} +"#, + r#" +struct Struct; + +struct FooResult(usize, bool); + +trait Foo { + fn foo(&self) -> FooResult; +} + +impl Foo for Struct { + fn foo(&self) -> FooResult { + FooResult(0, true) + } +} + +fn main() { + let s = Struct {}; + let FooResult(foo, bar) = s.foo(); + let FooResult(foo, bar) = Struct::foo(&s); + println!("{foo} {bar}"); +} +"#, + ) + } + + #[test] + fn body_wraps_nested() { + check_assist( + convert_tuple_return_type_to_struct, + r#" +fn foo() -> $0(u8, usize, u32) { + if true { + match 3 { + 0 => (1, 2, 3), + _ => return (4, 5, 6), + } + } else { + (2, 1, 3) + } +} +"#, + r#" +struct FooResult(u8, usize, u32); + +fn foo() -> FooResult { + if true { + match 3 { + 0 => FooResult(1, 2, 3), + _ => return FooResult(4, 5, 6), + } + } else { + FooResult(2, 1, 3) + } +} +"#, + ) + } + + #[test] + fn body_wraps_break_and_return() { + check_assist( + convert_tuple_return_type_to_struct, + r#" +fn foo(mut i: isize) -> (usize, $0u32, u8) { + if i < 0 { + return (0, 0, 0); + } + + loop { + if i == 2 { + println!("foo"); + break (1, 2, 3); + } + i += 1; + } +} +"#, + r#" +struct FooResult(usize, u32, u8); + +fn foo(mut i: isize) -> FooResult { + if i < 0 { + return FooResult(0, 0, 0); + } + + loop { + if i == 2 { + println!("foo"); + break FooResult(1, 2, 3); + } + i += 1; + } +} +"#, + ) + } + + #[test] + fn body_doesnt_wrap_identifier() { + check_assist( + convert_tuple_return_type_to_struct, + r#" +fn foo() -> $0(u8, usize, u32) { + let tuple = (1, 2, 3); + tuple +} +"#, + r#" +struct FooResult(u8, usize, u32); + +fn foo() -> FooResult { + let tuple = (1, 2, 3); + tuple +} +"#, + ) + } + + #[test] + fn body_doesnt_wrap_other_exprs() { + check_assist( + convert_tuple_return_type_to_struct, + r#" +fn bar(num: usize) -> (u8, usize, u32) { + (1, num, 3) +} + +fn foo() -> $0(u8, usize, u32) { + bar(2) +} +"#, + r#" +fn bar(num: usize) -> (u8, usize, u32) { + (1, num, 3) +} + +struct FooResult(u8, usize, u32); + +fn foo() -> FooResult { + bar(2) +} +"#, + ) + } + + #[test] + fn cross_file_and_module() { + check_assist( + convert_tuple_return_type_to_struct, + r#" +//- /main.rs +mod foo; + +fn main() { + use foo::bar; + + let (bar, baz) = bar::bar(); + println!("{}", bar == baz); +} + +//- /foo.rs +pub mod bar { + pub fn bar() -> $0(usize, usize) { + (1, 3) + } +} +"#, + r#" +//- /main.rs +use crate::foo::bar::BarResult; + +mod foo; + +fn main() { + use foo::bar; + + let BarResult(bar, baz) = bar::bar(); + println!("{}", bar == baz); +} + +//- /foo.rs +pub mod bar { + pub struct BarResult(pub usize, pub usize); + + pub fn bar() -> BarResult { + BarResult(1, 3) + } +} +"#, + ) + } + + #[test] + fn does_not_replace_nested_usage() { + check_assist( + convert_tuple_return_type_to_struct, + r#" +fn bar() -> $0(usize, bool) { + (42, true) +} + +fn main() { + let ((bar1, bar2), foo) = (bar(), 3); + println!("{bar1} {bar2} {foo}"); +} +"#, + r#" +struct BarResult(usize, bool); + +fn bar() -> BarResult { + BarResult(42, true) +} + +fn main() { + let ((bar1, bar2), foo) = (bar(), 3); + println!("{bar1} {bar2} {foo}"); +} +"#, + ) + } + + #[test] + fn function_with_non_tuple_return_type() { + check_assist_not_applicable( + convert_tuple_return_type_to_struct, + r#" +fn bar() -> $0usize { + 0 +} +"#, + ) + } + + #[test] + fn function_with_impl_type() { + check_assist_not_applicable( + convert_tuple_return_type_to_struct, + r#" +fn bar() -> $0(impl Clone, usize) { + ("bar", 0) +} +"#, + ) + } +} diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/desugar_doc_comment.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/desugar_doc_comment.rs index ddc8a50ed40..c859e98524e 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/desugar_doc_comment.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/desugar_doc_comment.rs @@ -33,9 +33,7 @@ pub(crate) fn desugar_doc_comment(acc: &mut Assists, ctx: &AssistContext<'_>) -> // Only allow comments which are alone on their line if let Some(prev) = comment.syntax().prev_token() { - if Whitespace::cast(prev).filter(|w| w.text().contains('\n')).is_none() { - return None; - } + Whitespace::cast(prev).filter(|w| w.text().contains('\n'))?; } let indentation = IndentLevel::from_token(comment.syntax()).to_string(); @@ -50,7 +48,7 @@ pub(crate) fn desugar_doc_comment(acc: &mut Assists, ctx: &AssistContext<'_>) -> ( TextRange::new( comments[0].syntax().text_range().start(), - comments.last().unwrap().syntax().text_range().end(), + comments.last()?.syntax().text_range().end(), ), Either::Right(comments), ) @@ -71,9 +69,11 @@ pub(crate) fn desugar_doc_comment(acc: &mut Assists, ctx: &AssistContext<'_>) -> .map(|l| l.strip_prefix(&indentation).unwrap_or(l)) .join("\n") } - Either::Right(comments) => { - comments.into_iter().map(|c| line_comment_text(IndentLevel(0), c)).join("\n") - } + Either::Right(comments) => comments + .into_iter() + .map(|cm| line_comment_text(IndentLevel(0), cm)) + .collect::<Vec<_>>() + .join("\n"), }; let hashes = "#".repeat(required_hashes(&text)); diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/extract_variable.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/extract_variable.rs index 014c23197fa..e7c884dcb70 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/extract_variable.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/extract_variable.rs @@ -29,22 +29,31 @@ use crate::{utils::suggest_name, AssistContext, AssistId, AssistKind, Assists}; // } // ``` pub(crate) fn extract_variable(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()> { - if ctx.has_empty_selection() { - return None; - } - - let node = match ctx.covering_element() { - NodeOrToken::Node(it) => it, - NodeOrToken::Token(it) if it.kind() == COMMENT => { - cov_mark::hit!(extract_var_in_comment_is_not_applicable); + let node = if ctx.has_empty_selection() { + if let Some(expr_stmt) = ctx.find_node_at_offset::<ast::ExprStmt>() { + expr_stmt.syntax().clone() + } else if let Some(expr) = ctx.find_node_at_offset::<ast::Expr>() { + expr.syntax().ancestors().find_map(valid_target_expr)?.syntax().clone() + } else { return None; } - NodeOrToken::Token(it) => it.parent()?, + } else { + match ctx.covering_element() { + NodeOrToken::Node(it) => it, + NodeOrToken::Token(it) if it.kind() == COMMENT => { + cov_mark::hit!(extract_var_in_comment_is_not_applicable); + return None; + } + NodeOrToken::Token(it) => it.parent()?, + } }; + let node = node.ancestors().take_while(|anc| anc.text_range() == node.text_range()).last()?; + let range = node.text_range(); + let to_extract = node .descendants() - .take_while(|it| ctx.selection_trimmed().contains_range(it.text_range())) + .take_while(|it| range.contains_range(it.text_range())) .find_map(valid_target_expr)?; let ty = ctx.sema.type_of_expr(&to_extract).map(TypeInfo::adjusted); @@ -236,6 +245,138 @@ mod tests { use super::*; #[test] + fn test_extract_var_simple_without_select() { + check_assist( + extract_variable, + r#" +fn main() -> i32 { + if true { + 1 + } else { + 2 + }$0 +} +"#, + r#" +fn main() -> i32 { + let $0var_name = if true { + 1 + } else { + 2 + }; + var_name +} +"#, + ); + + check_assist( + extract_variable, + r#" +fn foo() -> i32 { 1 } +fn main() { + foo();$0 +} +"#, + r#" +fn foo() -> i32 { 1 } +fn main() { + let $0foo = foo(); +} +"#, + ); + + check_assist( + extract_variable, + r#" +fn main() { + let a = Some(2); + a.is_some();$0 +} +"#, + r#" +fn main() { + let a = Some(2); + let $0is_some = a.is_some(); +} +"#, + ); + + check_assist( + extract_variable, + r#" +fn main() { + "hello"$0; +} +"#, + r#" +fn main() { + let $0var_name = "hello"; +} +"#, + ); + + check_assist( + extract_variable, + r#" +fn main() { + 1 + 2$0; +} +"#, + r#" +fn main() { + let $0var_name = 1 + 2; +} +"#, + ); + + check_assist( + extract_variable, + r#" +fn main() { + match () { + () if true => 1, + _ => 2, + };$0 +} +"#, + r#" +fn main() { + let $0var_name = match () { + () if true => 1, + _ => 2, + }; +} +"#, + ); + } + + #[test] + fn test_extract_var_unit_expr_without_select_not_applicable() { + check_assist_not_applicable( + extract_variable, + r#" +fn foo() {} +fn main() { + foo()$0; +} +"#, + ); + + check_assist_not_applicable( + extract_variable, + r#" +fn foo() { + let mut i = 3; + if i >= 0 { + i += 1; + } else { + i -= 1; + }$0 +}"#, + ); + } + + #[test] fn test_extract_var_simple() { check_assist( extract_variable, diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_function.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_function.rs index 5b13e01b133..f74fc5df4bd 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_function.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_function.rs @@ -404,7 +404,11 @@ impl FunctionBuilder { leading_ws, ret_type: fn_def.ret_type(), // PANIC: we guarantee we always create a function body with a tail expr - tail_expr: fn_def.body().unwrap().tail_expr().unwrap(), + tail_expr: fn_def + .body() + .expect("generated function should have a body") + .tail_expr() + .expect("function body should have a tail expression"), should_focus_return_type: self.should_focus_return_type, fn_def, trailing_ws, @@ -683,7 +687,7 @@ where { // This function should be only called with `Impl`, `Trait`, or `Function`, for which it's // infallible to get source ast. - let node = ctx.sema.source(def).unwrap().value; + let node = ctx.sema.source(def).expect("definition's source couldn't be found").value; let generic_params = node.generic_param_list().into_iter().flat_map(|it| it.generic_params()); let where_clauses = node.where_clause().into_iter().flat_map(|it| it.predicates()); (generic_params, where_clauses) diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_mut_trait_impl.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_mut_trait_impl.rs new file mode 100644 index 00000000000..cb8ef395650 --- /dev/null +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_mut_trait_impl.rs @@ -0,0 +1,202 @@ +use ide_db::famous_defs::FamousDefs; +use syntax::{ + ast::{self, make}, + ted, AstNode, +}; + +use crate::{AssistContext, AssistId, AssistKind, Assists}; + +// FIXME: Generate proper `index_mut` method body refer to `index` method body may impossible due to the unpredicable case [#15581]. +// Here just leave the `index_mut` method body be same as `index` method body, user can modify it manually to meet their need. + +// Assist: generate_mut_trait_impl +// +// Adds a IndexMut impl from the `Index` trait. +// +// ``` +// # //- minicore: index +// pub enum Axis { X = 0, Y = 1, Z = 2 } +// +// impl<T> core::ops::Index$0<Axis> for [T; 3] { +// type Output = T; +// +// fn index(&self, index: Axis) -> &Self::Output { +// &self[index as usize] +// } +// } +// ``` +// -> +// ``` +// pub enum Axis { X = 0, Y = 1, Z = 2 } +// +// $0impl<T> core::ops::IndexMut<Axis> for [T; 3] { +// fn index_mut(&mut self, index: Axis) -> &mut Self::Output { +// &self[index as usize] +// } +// } +// +// impl<T> core::ops::Index<Axis> for [T; 3] { +// type Output = T; +// +// fn index(&self, index: Axis) -> &Self::Output { +// &self[index as usize] +// } +// } +// ``` +pub(crate) fn generate_mut_trait_impl(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()> { + let impl_def = ctx.find_node_at_offset::<ast::Impl>()?.clone_for_update(); + + let trait_ = impl_def.trait_()?; + if let ast::Type::PathType(trait_path) = trait_.clone() { + let trait_type = ctx.sema.resolve_trait(&trait_path.path()?)?; + let scope = ctx.sema.scope(trait_path.syntax())?; + if trait_type != FamousDefs(&ctx.sema, scope.krate()).core_convert_Index()? { + return None; + } + } + + // Index -> IndexMut + let index_trait = impl_def + .syntax() + .descendants() + .filter_map(ast::NameRef::cast) + .find(|it| it.text() == "Index")?; + ted::replace( + index_trait.syntax(), + make::path_segment(make::name_ref("IndexMut")).clone_for_update().syntax(), + ); + + // index -> index_mut + let trait_method_name = impl_def + .syntax() + .descendants() + .filter_map(ast::Name::cast) + .find(|it| it.text() == "index")?; + ted::replace(trait_method_name.syntax(), make::name("index_mut").clone_for_update().syntax()); + + let type_alias = impl_def.syntax().descendants().find_map(ast::TypeAlias::cast)?; + ted::remove(type_alias.syntax()); + + // &self -> &mut self + let mut_self_param = make::mut_self_param(); + let self_param: ast::SelfParam = + impl_def.syntax().descendants().find_map(ast::SelfParam::cast)?; + ted::replace(self_param.syntax(), mut_self_param.clone_for_update().syntax()); + + // &Self::Output -> &mut Self::Output + let ret_type = impl_def.syntax().descendants().find_map(ast::RetType::cast)?; + ted::replace( + ret_type.syntax(), + make::ret_type(make::ty("&mut Self::Output")).clone_for_update().syntax(), + ); + + let fn_ = impl_def.assoc_item_list()?.assoc_items().find_map(|it| match it { + ast::AssocItem::Fn(f) => Some(f), + _ => None, + })?; + + let assoc_list = make::assoc_item_list().clone_for_update(); + assoc_list.add_item(syntax::ast::AssocItem::Fn(fn_)); + ted::replace(impl_def.assoc_item_list()?.syntax(), assoc_list.syntax()); + + let target = impl_def.syntax().text_range(); + acc.add( + AssistId("generate_mut_trait_impl", AssistKind::Generate), + "Generate `IndexMut` impl from this `Index` trait", + target, + |edit| { + edit.insert(target.start(), format!("$0{}\n\n", impl_def.to_string())); + }, + ) +} + +#[cfg(test)] +mod tests { + use crate::tests::{check_assist, check_assist_not_applicable}; + + use super::*; + + #[test] + fn test_generate_mut_trait_impl() { + check_assist( + generate_mut_trait_impl, + r#" +//- minicore: index +pub enum Axis { X = 0, Y = 1, Z = 2 } + +impl<T> core::ops::Index$0<Axis> for [T; 3] { + type Output = T; + + fn index(&self, index: Axis) -> &Self::Output { + &self[index as usize] + } +} +"#, + r#" +pub enum Axis { X = 0, Y = 1, Z = 2 } + +$0impl<T> core::ops::IndexMut<Axis> for [T; 3] { + fn index_mut(&mut self, index: Axis) -> &mut Self::Output { + &self[index as usize] + } +} + +impl<T> core::ops::Index<Axis> for [T; 3] { + type Output = T; + + fn index(&self, index: Axis) -> &Self::Output { + &self[index as usize] + } +} +"#, + ); + + check_assist( + generate_mut_trait_impl, + r#" +//- minicore: index +pub enum Axis { X = 0, Y = 1, Z = 2 } + +impl<T> core::ops::Index$0<Axis> for [T; 3] where T: Copy { + type Output = T; + + fn index(&self, index: Axis) -> &Self::Output { + let var_name = &self[index as usize]; + var_name + } +} +"#, + r#" +pub enum Axis { X = 0, Y = 1, Z = 2 } + +$0impl<T> core::ops::IndexMut<Axis> for [T; 3] where T: Copy { + fn index_mut(&mut self, index: Axis) -> &mut Self::Output { + let var_name = &self[index as usize]; + var_name + } +} + +impl<T> core::ops::Index<Axis> for [T; 3] where T: Copy { + type Output = T; + + fn index(&self, index: Axis) -> &Self::Output { + let var_name = &self[index as usize]; + var_name + } +} +"#, + ); + } + + #[test] + fn test_generate_mut_trait_impl_not_applicable() { + check_assist_not_applicable( + generate_mut_trait_impl, + r#" +pub trait Index<Idx: ?Sized> {} + +impl<T> Index$0<i32> for [T; 3] {} +"#, + ); + } +} diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/inline_call.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/inline_call.rs index ffab58509b1..f8c75bdb0de 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/inline_call.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/inline_call.rs @@ -224,7 +224,6 @@ pub(crate) fn inline_call(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option< syntax.text_range(), |builder| { let replacement = inline(&ctx.sema, file_id, function, &fn_body, ¶ms, &call_info); - builder.replace_ast( match call_info.node { ast::CallableExpr::Call(it) => ast::Expr::CallExpr(it), @@ -363,16 +362,22 @@ fn inline( .collect(); if function.self_param(sema.db).is_some() { - let this = || make::name_ref("this").syntax().clone_for_update().first_token().unwrap(); + let this = || { + make::name_ref("this") + .syntax() + .clone_for_update() + .first_token() + .expect("NameRef should have had a token.") + }; if let Some(self_local) = params[0].2.as_local(sema.db) { usages_for_locals(self_local) .filter_map(|FileReference { name, range, .. }| match name { ast::NameLike::NameRef(_) => Some(body.syntax().covering_element(range)), _ => None, }) - .for_each(|it| { - ted::replace(it, &this()); - }) + .for_each(|usage| { + ted::replace(usage, &this()); + }); } } @@ -470,7 +475,9 @@ fn inline( } } else if let Some(stmt_list) = body.stmt_list() { ted::insert_all( - ted::Position::after(stmt_list.l_curly_token().unwrap()), + ted::Position::after( + stmt_list.l_curly_token().expect("L_CURLY for StatementList is missing."), + ), let_stmts.into_iter().map(|stmt| stmt.syntax().clone().into()).collect(), ); } @@ -481,8 +488,12 @@ fn inline( }; body.reindent_to(original_indentation); + let no_stmts = body.statements().next().is_none(); match body.tail_expr() { - Some(expr) if !is_async_fn && body.statements().next().is_none() => expr, + Some(expr) if matches!(expr, ast::Expr::ClosureExpr(_)) && no_stmts => { + make::expr_paren(expr).clone_for_update() + } + Some(expr) if !is_async_fn && no_stmts => expr, _ => match node .syntax() .parent() @@ -1474,4 +1485,29 @@ fn main() { "#, ); } + + #[test] + fn inline_call_closure_body() { + check_assist( + inline_call, + r#" +fn f() -> impl Fn() -> i32 { + || 2 +} + +fn main() { + let _ = $0f()(); +} +"#, + r#" +fn f() -> impl Fn() -> i32 { + || 2 +} + +fn main() { + let _ = (|| 2)(); +} +"#, + ); + } } diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/inline_local_variable.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/inline_local_variable.rs index e69d1a29677..49dcde75d2b 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/inline_local_variable.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/inline_local_variable.rs @@ -96,8 +96,7 @@ pub(crate) fn inline_local_variable(acc: &mut Assists, ctx: &AssistContext<'_>) ); let parent = matches!( usage_parent, - ast::Expr::CallExpr(_) - | ast::Expr::TupleExpr(_) + ast::Expr::TupleExpr(_) | ast::Expr::ArrayExpr(_) | ast::Expr::ParenExpr(_) | ast::Expr::ForExpr(_) @@ -952,4 +951,22 @@ fn f() { "#, ); } + + #[test] + fn test_inline_closure() { + check_assist( + inline_local_variable, + r#" +fn main() { + let $0f = || 2; + let _ = f(); +} +"#, + r#" +fn main() { + let _ = (|| 2)(); +} +"#, + ); + } } diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/into_to_qualified_from.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/into_to_qualified_from.rs index 663df266b6f..965e4aa786e 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/into_to_qualified_from.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/into_to_qualified_from.rs @@ -52,9 +52,13 @@ pub(crate) fn into_to_qualified_from(acc: &mut Assists, ctx: &AssistContext<'_>) == FamousDefs(sema, scope.krate()).core_convert_Into()? { let type_call = sema.type_of_expr(&method_call.clone().into())?; - let type_call_disp = - type_call.adjusted().display_source_code(db, scope.module().into(), true).ok()?; + let adjusted_tc = type_call.adjusted(); + if adjusted_tc.contains_unknown() { + return None; + } + + let sc = adjusted_tc.display_source_code(db, scope.module().into(), true).ok()?; acc.add( AssistId("into_to_qualified_from", AssistKind::Generate), "Convert `into` to fully qualified `from`", @@ -62,7 +66,11 @@ pub(crate) fn into_to_qualified_from(acc: &mut Assists, ctx: &AssistContext<'_>) |edit| { edit.replace( method_call.syntax().text_range(), - format!("{}::from({})", type_call_disp, receiver), + if sc.chars().all(|c| c.is_alphanumeric() || c == ':') { + format!("{}::from({})", sc, receiver) + } else { + format!("<{}>::from({})", sc, receiver) + }, ); }, ); @@ -202,4 +210,64 @@ fn main() -> () { }"#, ) } + + #[test] + fn preceding_type_qualifier() { + check_assist( + into_to_qualified_from, + r#" +//- minicore: from +impl From<(i32,i32)> for [i32;2] { + fn from(value: (i32,i32)) -> Self { + [value.0, value.1] + } +} + +fn tuple_to_array() -> [i32; 2] { + (0,1).in$0to() +}"#, + r#" +impl From<(i32,i32)> for [i32;2] { + fn from(value: (i32,i32)) -> Self { + [value.0, value.1] + } +} + +fn tuple_to_array() -> [i32; 2] { + <[i32; 2]>::from((0,1)) +}"#, + ) + } + + #[test] + fn type_with_gens() { + check_assist( + into_to_qualified_from, + r#" +//- minicore: from +struct StructA<Gen>(Gen); + +impl From<i32> for StructA<i32> { + fn from(value: i32) -> Self { + StructA(value + 1) + } +} + +fn main() -> () { + let a: StructA<i32> = 3.in$0to(); +}"#, + r#" +struct StructA<Gen>(Gen); + +impl From<i32> for StructA<i32> { + fn from(value: i32) -> Self { + StructA(value + 1) + } +} + +fn main() -> () { + let a: StructA<i32> = <StructA<i32>>::from(3); +}"#, + ) + } } diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/replace_is_method_with_if_let_method.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/replace_is_method_with_if_let_method.rs new file mode 100644 index 00000000000..b1daaea1ed1 --- /dev/null +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/replace_is_method_with_if_let_method.rs @@ -0,0 +1,172 @@ +use syntax::ast::{self, AstNode}; + +use crate::{utils::suggest_name, AssistContext, AssistId, AssistKind, Assists}; + +// Assist: replace_is_some_with_if_let_some +// +// Replace `if x.is_some()` with `if let Some(_tmp) = x` or `if x.is_ok()` with `if let Ok(_tmp) = x`. +// +// ``` +// fn main() { +// let x = Some(1); +// if x.is_som$0e() {} +// } +// ``` +// -> +// ``` +// fn main() { +// let x = Some(1); +// if let Some(${0:x}) = x {} +// } +// ``` +pub(crate) fn replace_is_method_with_if_let_method( + acc: &mut Assists, + ctx: &AssistContext<'_>, +) -> Option<()> { + let if_expr = ctx.find_node_at_offset::<ast::IfExpr>()?; + + let cond = if_expr.condition()?; + let call_expr = match cond { + ast::Expr::MethodCallExpr(call) => call, + _ => return None, + }; + + let name_ref = call_expr.name_ref()?; + match name_ref.text().as_str() { + "is_some" | "is_ok" => { + let receiver = call_expr.receiver()?; + + let var_name = if let ast::Expr::PathExpr(path_expr) = receiver.clone() { + path_expr.path()?.to_string() + } else { + suggest_name::for_variable(&receiver, &ctx.sema) + }; + + let target = call_expr.syntax().text_range(); + + let (assist_id, message, text) = if name_ref.text() == "is_some" { + ("replace_is_some_with_if_let_some", "Replace `is_some` with `if let Some`", "Some") + } else { + ("replace_is_ok_with_if_let_ok", "Replace `is_ok` with `if let Ok`", "Ok") + }; + + acc.add(AssistId(assist_id, AssistKind::RefactorRewrite), message, target, |edit| { + let var_name = format!("${{0:{}}}", var_name); + let replacement = format!("let {}({}) = {}", text, var_name, receiver); + edit.replace(target, replacement); + }) + } + _ => return None, + } +} + +#[cfg(test)] +mod tests { + use crate::tests::{check_assist, check_assist_not_applicable}; + + use super::replace_is_method_with_if_let_method; + + #[test] + fn replace_is_some_with_if_let_some_works() { + check_assist( + replace_is_method_with_if_let_method, + r#" +fn main() { + let x = Some(1); + if x.is_som$0e() {} +} +"#, + r#" +fn main() { + let x = Some(1); + if let Some(${0:x}) = x {} +} +"#, + ); + + check_assist( + replace_is_method_with_if_let_method, + r#" +fn test() -> Option<i32> { + Some(1) +} +fn main() { + if test().is_som$0e() {} +} +"#, + r#" +fn test() -> Option<i32> { + Some(1) +} +fn main() { + if let Some(${0:test}) = test() {} +} +"#, + ); + } + + #[test] + fn replace_is_some_with_if_let_some_not_applicable() { + check_assist_not_applicable( + replace_is_method_with_if_let_method, + r#" +fn main() { + let x = Some(1); + if x.is_non$0e() {} +} +"#, + ); + } + + #[test] + fn replace_is_ok_with_if_let_ok_works() { + check_assist( + replace_is_method_with_if_let_method, + r#" +fn main() { + let x = Ok(1); + if x.is_o$0k() {} +} +"#, + r#" +fn main() { + let x = Ok(1); + if let Ok(${0:x}) = x {} +} +"#, + ); + + check_assist( + replace_is_method_with_if_let_method, + r#" +fn test() -> Result<i32> { + Ok(1) +} +fn main() { + if test().is_o$0k() {} +} +"#, + r#" +fn test() -> Result<i32> { + Ok(1) +} +fn main() { + if let Ok(${0:test}) = test() {} +} +"#, + ); + } + + #[test] + fn replace_is_ok_with_if_let_ok_not_applicable() { + check_assist_not_applicable( + replace_is_method_with_if_let_method, + r#" +fn main() { + let x = Ok(1); + if x.is_e$0rr() {} +} +"#, + ); + } +} diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/unmerge_use.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/unmerge_use.rs index dac216b69b7..52df30d9623 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/unmerge_use.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/unmerge_use.rs @@ -36,29 +36,25 @@ pub(crate) fn unmerge_use(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option< let old_parent_range = use_.syntax().parent()?.text_range(); let new_parent = use_.syntax().parent()?; + // If possible, explain what is going to be done. + let label = match tree.path().and_then(|path| path.first_segment()) { + Some(name) => format!("Unmerge use of `{name}`"), + None => "Unmerge use".into(), + }; + let target = tree.syntax().text_range(); - acc.add( - AssistId("unmerge_use", AssistKind::RefactorRewrite), - "Unmerge use", - target, - |builder| { - let new_use = make::use_( - use_.visibility(), - make::use_tree( - path, - tree.use_tree_list(), - tree.rename(), - tree.star_token().is_some(), - ), - ) - .clone_for_update(); - - tree.remove(); - ted::insert(Position::after(use_.syntax()), new_use.syntax()); - - builder.replace(old_parent_range, new_parent.to_string()); - }, - ) + acc.add(AssistId("unmerge_use", AssistKind::RefactorRewrite), label, target, |builder| { + let new_use = make::use_( + use_.visibility(), + make::use_tree(path, tree.use_tree_list(), tree.rename(), tree.star_token().is_some()), + ) + .clone_for_update(); + + tree.remove(); + ted::insert(Position::after(use_.syntax()), new_use.syntax()); + + builder.replace(old_parent_range, new_parent.to_string()); + }) } fn resolve_full_path(tree: &ast::UseTree) -> Option<ast::Path> { diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/unqualify_method_call.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/unqualify_method_call.rs index e9d4e270cdc..0bf1782a489 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/unqualify_method_call.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/unqualify_method_call.rs @@ -1,3 +1,4 @@ +use ide_db::imports::insert_use::ImportScope; use syntax::{ ast::{self, make, AstNode, HasArgList}, TextRange, @@ -17,6 +18,8 @@ use crate::{AssistContext, AssistId, AssistKind, Assists}; // ``` // -> // ``` +// use std::ops::Add; +// // fn main() { // 1.add(2); // } @@ -38,7 +41,7 @@ pub(crate) fn unqualify_method_call(acc: &mut Assists, ctx: &AssistContext<'_>) let first_arg = args_iter.next()?; let second_arg = args_iter.next(); - _ = path.qualifier()?; + let qualifier = path.qualifier()?; let method_name = path.segment()?.name_ref()?; let res = ctx.sema.resolve_path(&path)?; @@ -76,10 +79,51 @@ pub(crate) fn unqualify_method_call(acc: &mut Assists, ctx: &AssistContext<'_>) edit.insert(close, ")"); } edit.replace(replace_comma, format!(".{method_name}(")); + add_import(qualifier, ctx, edit); }, ) } +fn add_import( + qualifier: ast::Path, + ctx: &AssistContext<'_>, + edit: &mut ide_db::source_change::SourceChangeBuilder, +) { + if let Some(path_segment) = qualifier.segment() { + // for `<i32 as std::ops::Add>` + let path_type = path_segment.syntax().children().filter_map(ast::PathType::cast).last(); + let import = match path_type { + Some(it) => { + if let Some(path) = it.path() { + path + } else { + return; + } + } + None => qualifier, + }; + + // in case for `<_>` + if import.coloncolon_token().is_none() { + return; + } + + let scope = ide_db::imports::insert_use::ImportScope::find_insert_use_container( + import.syntax(), + &ctx.sema, + ); + + if let Some(scope) = scope { + let scope = match scope { + ImportScope::File(it) => ImportScope::File(edit.make_mut(it)), + ImportScope::Module(it) => ImportScope::Module(edit.make_mut(it)), + ImportScope::Block(it) => ImportScope::Block(edit.make_mut(it)), + }; + ide_db::imports::insert_use::insert_use(&scope, import, &ctx.config.insert_use); + } + } +} + fn needs_parens_as_receiver(expr: &ast::Expr) -> bool { // Make `(expr).dummy()` let dummy_call = make::expr_method_call( @@ -127,6 +171,8 @@ fn f() { S.f(S); }"#, //- minicore: add fn f() { <u32 as core::ops::Add>::$0add(2, 2); }"#, r#" +use core::ops::Add; + fn f() { 2.add(2); }"#, ); @@ -136,6 +182,8 @@ fn f() { 2.add(2); }"#, //- minicore: add fn f() { core::ops::Add::$0add(2, 2); }"#, r#" +use core::ops::Add; + fn f() { 2.add(2); }"#, ); @@ -179,6 +227,8 @@ impl core::ops::Deref for S { } fn f() { core::ops::Deref::$0deref(&S); }"#, r#" +use core::ops::Deref; + struct S; impl core::ops::Deref for S { type Target = S; diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/unwrap_result_return_type.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/unwrap_result_return_type.rs index f235b554e61..03e6dfebebf 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/unwrap_result_return_type.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/unwrap_result_return_type.rs @@ -123,10 +123,8 @@ fn tail_cb_impl(acc: &mut Vec<ast::Expr>, e: &ast::Expr) { for_each_tail_expr(&break_expr_arg, &mut |e| tail_cb_impl(acc, e)) } } - Expr::ReturnExpr(ret_expr) => { - if let Some(ret_expr_arg) = &ret_expr.expr() { - for_each_tail_expr(ret_expr_arg, &mut |e| tail_cb_impl(acc, e)); - } + Expr::ReturnExpr(_) => { + // all return expressions have already been handled by the walk loop } e => acc.push(e.clone()), } @@ -801,6 +799,24 @@ fn foo() -> i32 { } #[test] + fn wrap_return_in_tail_position() { + check_assist( + unwrap_result_return_type, + r#" +//- minicore: result +fn foo(num: i32) -> $0Result<i32, String> { + return Ok(num) +} +"#, + r#" +fn foo(num: i32) -> i32 { + return num +} +"#, + ); + } + + #[test] fn unwrap_result_return_type_simple_with_closure() { check_assist( unwrap_result_return_type, diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/wrap_return_type_in_result.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/wrap_return_type_in_result.rs index 61e9bcdcc51..b68ed00f772 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/wrap_return_type_in_result.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/wrap_return_type_in_result.rs @@ -98,10 +98,8 @@ fn tail_cb_impl(acc: &mut Vec<ast::Expr>, e: &ast::Expr) { for_each_tail_expr(&break_expr_arg, &mut |e| tail_cb_impl(acc, e)) } } - Expr::ReturnExpr(ret_expr) => { - if let Some(ret_expr_arg) = &ret_expr.expr() { - for_each_tail_expr(ret_expr_arg, &mut |e| tail_cb_impl(acc, e)); - } + Expr::ReturnExpr(_) => { + // all return expressions have already been handled by the walk loop } e => acc.push(e.clone()), } @@ -733,6 +731,24 @@ fn foo() -> Result<i32, ${0:_}> { } #[test] + fn wrap_return_in_tail_position() { + check_assist( + wrap_return_type_in_result, + r#" +//- minicore: result +fn foo(num: i32) -> $0i32 { + return num +} +"#, + r#" +fn foo(num: i32) -> Result<i32, ${0:_}> { + return Ok(num) +} +"#, + ); + } + + #[test] fn wrap_return_type_in_result_simple_with_closure() { check_assist( wrap_return_type_in_result, diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/lib.rs b/src/tools/rust-analyzer/crates/ide-assists/src/lib.rs index 6f973ab53ee..e6f03214ed3 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/lib.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/lib.rs @@ -115,6 +115,7 @@ mod handlers { mod apply_demorgan; mod auto_import; mod bind_unused_param; + mod bool_to_enum; mod change_visibility; mod convert_bool_then; mod convert_comment_block; @@ -124,6 +125,7 @@ mod handlers { mod convert_let_else_to_match; mod convert_match_to_let_else; mod convert_nested_function_to_closure; + mod convert_tuple_return_type_to_struct; mod convert_tuple_struct_to_named_struct; mod convert_named_struct_to_tuple_struct; mod convert_to_guarded_return; @@ -158,6 +160,7 @@ mod handlers { mod generate_getter_or_setter; mod generate_impl; mod generate_is_empty_from_len; + mod generate_mut_trait_impl; mod generate_new; mod generate_delegate_methods; mod generate_trait_from_impl; @@ -193,6 +196,7 @@ mod handlers { mod replace_try_expr_with_match; mod replace_derive_with_manual_impl; mod replace_if_let_with_match; + mod replace_is_method_with_if_let_method; mod replace_method_eager_lazy; mod replace_arith_op; mod introduce_named_generic; @@ -225,8 +229,10 @@ mod handlers { add_return_type::add_return_type, add_turbo_fish::add_turbo_fish, apply_demorgan::apply_demorgan, + apply_demorgan::apply_demorgan_iterator, auto_import::auto_import, bind_unused_param::bind_unused_param, + bool_to_enum::bool_to_enum, change_visibility::change_visibility, convert_bool_then::convert_bool_then_to_if, convert_bool_then::convert_if_to_bool_then, @@ -237,6 +243,7 @@ mod handlers { convert_iter_for_each_to_for::convert_for_loop_with_for_each, convert_let_else_to_match::convert_let_else_to_match, convert_match_to_let_else::convert_match_to_let_else, + convert_tuple_return_type_to_struct::convert_tuple_return_type_to_struct, convert_named_struct_to_tuple_struct::convert_named_struct_to_tuple_struct, convert_nested_function_to_closure::convert_nested_function_to_closure, convert_to_guarded_return::convert_to_guarded_return, @@ -268,6 +275,7 @@ mod handlers { generate_function::generate_function, generate_impl::generate_impl, generate_impl::generate_trait_impl, + generate_mut_trait_impl::generate_mut_trait_impl, generate_is_empty_from_len::generate_is_empty_from_len, generate_new::generate_new, generate_trait_from_impl::generate_trait_from_impl, @@ -308,6 +316,7 @@ mod handlers { replace_derive_with_manual_impl::replace_derive_with_manual_impl, replace_if_let_with_match::replace_if_let_with_match, replace_if_let_with_match::replace_match_with_if_let, + replace_is_method_with_if_let_method::replace_is_method_with_if_let_method, replace_let_with_if_let::replace_let_with_if_let, replace_method_eager_lazy::replace_with_eager_method, replace_method_eager_lazy::replace_with_lazy_method, diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/tests/generated.rs b/src/tools/rust-analyzer/crates/ide-assists/src/tests/generated.rs index dfaa53449f4..da5822bba9c 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/tests/generated.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/tests/generated.rs @@ -245,6 +245,30 @@ fn main() { } #[test] +fn doctest_apply_demorgan_iterator() { + check_doc_test( + "apply_demorgan_iterator", + r#####" +//- minicore: iterator +fn main() { + let arr = [1, 2, 3]; + if !arr.into_iter().$0any(|num| num == 4) { + println!("foo"); + } +} +"#####, + r#####" +fn main() { + let arr = [1, 2, 3]; + if arr.into_iter().all(|num| num != 4) { + println!("foo"); + } +} +"#####, + ) +} + +#[test] fn doctest_auto_import() { check_doc_test( "auto_import", @@ -281,6 +305,34 @@ fn some_function(x: i32) { } #[test] +fn doctest_bool_to_enum() { + check_doc_test( + "bool_to_enum", + r#####" +fn main() { + let $0bool = true; + + if bool { + println!("foo"); + } +} +"#####, + r#####" +#[derive(PartialEq, Eq)] +enum Bool { True, False } + +fn main() { + let bool = Bool::True; + + if bool == Bool::True { + println!("foo"); + } +} +"#####, + ) +} + +#[test] fn doctest_change_visibility() { check_doc_test( "change_visibility", @@ -559,6 +611,33 @@ fn main() { } #[test] +fn doctest_convert_tuple_return_type_to_struct() { + check_doc_test( + "convert_tuple_return_type_to_struct", + r#####" +fn bar() { + let (a, b, c) = foo(); +} + +fn foo() -> ($0u32, u32, u32) { + (1, 2, 3) +} +"#####, + r#####" +fn bar() { + let FooResult(a, b, c) = foo(); +} + +struct FooResult(u32, u32, u32); + +fn foo() -> FooResult { + FooResult(1, 2, 3) +} +"#####, + ) +} + +#[test] fn doctest_convert_tuple_struct_to_named_struct() { check_doc_test( "convert_tuple_struct_to_named_struct", @@ -1460,6 +1539,42 @@ impl MyStruct { } #[test] +fn doctest_generate_mut_trait_impl() { + check_doc_test( + "generate_mut_trait_impl", + r#####" +//- minicore: index +pub enum Axis { X = 0, Y = 1, Z = 2 } + +impl<T> core::ops::Index$0<Axis> for [T; 3] { + type Output = T; + + fn index(&self, index: Axis) -> &Self::Output { + &self[index as usize] + } +} +"#####, + r#####" +pub enum Axis { X = 0, Y = 1, Z = 2 } + +$0impl<T> core::ops::IndexMut<Axis> for [T; 3] { + fn index_mut(&mut self, index: Axis) -> &mut Self::Output { + &self[index as usize] + } +} + +impl<T> core::ops::Index<Axis> for [T; 3] { + type Output = T; + + fn index(&self, index: Axis) -> &Self::Output { + &self[index as usize] + } +} +"#####, + ) +} + +#[test] fn doctest_generate_new() { check_doc_test( "generate_new", @@ -2480,6 +2595,25 @@ fn handle(action: Action) { } #[test] +fn doctest_replace_is_some_with_if_let_some() { + check_doc_test( + "replace_is_some_with_if_let_some", + r#####" +fn main() { + let x = Some(1); + if x.is_som$0e() {} +} +"#####, + r#####" +fn main() { + let x = Some(1); + if let Some(${0:x}) = x {} +} +"#####, + ) +} + +#[test] fn doctest_replace_let_with_if_let() { check_doc_test( "replace_let_with_if_let", @@ -2850,6 +2984,8 @@ fn main() { mod std { pub mod ops { pub trait Add { fn add(self, _: Self) {} } impl Add for i32 {} } } "#####, r#####" +use std::ops::Add; + fn main() { 1.add(2); } diff --git a/src/tools/rust-analyzer/crates/ide-completion/src/completions/flyimport.rs b/src/tools/rust-analyzer/crates/ide-completion/src/completions/flyimport.rs index 39c1b7f7b3f..0961021e48e 100644 --- a/src/tools/rust-analyzer/crates/ide-completion/src/completions/flyimport.rs +++ b/src/tools/rust-analyzer/crates/ide-completion/src/completions/flyimport.rs @@ -13,10 +13,9 @@ use crate::{ TypeLocation, }, render::{render_resolution_with_import, render_resolution_with_import_pat, RenderContext}, + Completions, }; -use super::Completions; - // Feature: Completion With Autoimport // // When completing names in the current scope, proposes additional imports from other modules or crates, @@ -377,9 +376,12 @@ fn import_assets_for_path( &ctx.sema, ctx.token.parent()?, )?; - if fuzzy_name_length < 3 { - cov_mark::hit!(flyimport_exact_on_short_path); - assets_for_path.path_fuzzy_name_to_exact(false); + if fuzzy_name_length == 0 { + // nothing matches the empty string exactly, but we still compute assoc items in this case + assets_for_path.path_fuzzy_name_to_exact(); + } else if fuzzy_name_length < 3 { + cov_mark::hit!(flyimport_prefix_on_short_path); + assets_for_path.path_fuzzy_name_to_prefix(); } Some(assets_for_path) } diff --git a/src/tools/rust-analyzer/crates/ide-completion/src/config.rs b/src/tools/rust-analyzer/crates/ide-completion/src/config.rs index 8f6a97e1e09..3d025f284bb 100644 --- a/src/tools/rust-analyzer/crates/ide-completion/src/config.rs +++ b/src/tools/rust-analyzer/crates/ide-completion/src/config.rs @@ -14,6 +14,7 @@ pub struct CompletionConfig { pub enable_imports_on_the_fly: bool, pub enable_self_on_the_fly: bool, pub enable_private_editable: bool, + pub full_function_signatures: bool, pub callable: Option<CallableSnippets>, pub snippet_cap: Option<SnippetCap>, pub insert_use: InsertUseConfig, diff --git a/src/tools/rust-analyzer/crates/ide-completion/src/item.rs b/src/tools/rust-analyzer/crates/ide-completion/src/item.rs index c45cc8d7b37..ed74ef7b667 100644 --- a/src/tools/rust-analyzer/crates/ide-completion/src/item.rs +++ b/src/tools/rust-analyzer/crates/ide-completion/src/item.rs @@ -89,7 +89,7 @@ impl fmt::Debug for CompletionItem { let mut s = f.debug_struct("CompletionItem"); s.field("label", &self.label).field("source_range", &self.source_range); if self.text_edit.len() == 1 { - let atom = &self.text_edit.iter().next().unwrap(); + let atom = self.text_edit.iter().next().unwrap(); s.field("delete", &atom.delete); s.field("insert", &atom.insert); } else { diff --git a/src/tools/rust-analyzer/crates/ide-completion/src/lib.rs b/src/tools/rust-analyzer/crates/ide-completion/src/lib.rs index 2eaa42040a0..2fad293d16d 100644 --- a/src/tools/rust-analyzer/crates/ide-completion/src/lib.rs +++ b/src/tools/rust-analyzer/crates/ide-completion/src/lib.rs @@ -169,6 +169,28 @@ pub fn completions( return Some(completions.into()); } + // when the user types a bare `_` (that is it does not belong to an identifier) + // the user might just wanted to type a `_` for type inference or pattern discarding + // so try to suppress completions in those cases + if trigger_character == Some('_') && ctx.original_token.kind() == syntax::SyntaxKind::UNDERSCORE + { + if let CompletionAnalysis::NameRef(NameRefContext { + kind: + NameRefKind::Path( + path_ctx @ PathCompletionCtx { + kind: PathKind::Type { .. } | PathKind::Pat { .. }, + .. + }, + ), + .. + }) = analysis + { + if path_ctx.is_trivial_path() { + return None; + } + } + } + { let acc = &mut completions; diff --git a/src/tools/rust-analyzer/crates/ide-completion/src/render/function.rs b/src/tools/rust-analyzer/crates/ide-completion/src/render/function.rs index 8afce8db5ea..dfae715afe3 100644 --- a/src/tools/rust-analyzer/crates/ide-completion/src/render/function.rs +++ b/src/tools/rust-analyzer/crates/ide-completion/src/render/function.rs @@ -98,9 +98,14 @@ fn render( _ => (), } + let detail = if ctx.completion.config.full_function_signatures { + detail_full(db, func) + } else { + detail(db, func) + }; item.set_documentation(ctx.docs(func)) .set_deprecated(ctx.is_deprecated(func) || ctx.is_deprecated_assoc_item(func)) - .detail(detail(db, func)) + .detail(detail) .lookup_by(name.unescaped().to_smol_str()); match ctx.completion.config.snippet_cap { @@ -263,6 +268,21 @@ fn detail(db: &dyn HirDatabase, func: hir::Function) -> String { detail } +fn detail_full(db: &dyn HirDatabase, func: hir::Function) -> String { + let signature = format!("{}", func.display(db)); + let mut detail = String::with_capacity(signature.len()); + + for segment in signature.split_whitespace() { + if !detail.is_empty() { + detail.push(' '); + } + + detail.push_str(segment); + } + + detail +} + fn params_display(db: &dyn HirDatabase, func: hir::Function) -> String { if let Some(self_param) = func.self_param(db) { let assoc_fn_params = func.assoc_fn_params(db); diff --git a/src/tools/rust-analyzer/crates/ide-completion/src/tests.rs b/src/tools/rust-analyzer/crates/ide-completion/src/tests.rs index 2464e8d5f81..284bdd8af21 100644 --- a/src/tools/rust-analyzer/crates/ide-completion/src/tests.rs +++ b/src/tools/rust-analyzer/crates/ide-completion/src/tests.rs @@ -64,6 +64,7 @@ pub(crate) const TEST_CONFIG: CompletionConfig = CompletionConfig { enable_imports_on_the_fly: true, enable_self_on_the_fly: true, enable_private_editable: false, + full_function_signatures: false, callable: Some(CallableSnippets::FillArguments), snippet_cap: SnippetCap::new(true), prefer_no_std: false, diff --git a/src/tools/rust-analyzer/crates/ide-completion/src/tests/flyimport.rs b/src/tools/rust-analyzer/crates/ide-completion/src/tests/flyimport.rs index 4cdfd546f6a..21f693d79f1 100644 --- a/src/tools/rust-analyzer/crates/ide-completion/src/tests/flyimport.rs +++ b/src/tools/rust-analyzer/crates/ide-completion/src/tests/flyimport.rs @@ -116,19 +116,47 @@ fn main() { } #[test] -fn short_paths_are_ignored() { - cov_mark::check!(flyimport_exact_on_short_path); +fn short_paths_are_prefix_matched() { + cov_mark::check!(flyimport_prefix_on_short_path); check( r#" //- /lib.rs crate:dep -pub struct Bar; +pub struct Barc; pub struct Rcar; pub struct Rc; +pub const RC: () = (); pub mod some_module { pub struct Bar; pub struct Rcar; pub struct Rc; + pub const RC: () = (); +} + +//- /main.rs crate:main deps:dep +fn main() { + Rc$0 +} +"#, + expect![[r#" + st Rc (use dep::Rc) + st Rcar (use dep::Rcar) + st Rc (use dep::some_module::Rc) + st Rcar (use dep::some_module::Rcar) + "#]], + ); + check( + r#" +//- /lib.rs crate:dep +pub struct Barc; +pub struct Rcar; +pub struct Rc; +pub const RC: () = (); +pub mod some_module { + pub struct Bar; + pub struct Rcar; + pub struct Rc; + pub const RC: () = (); } //- /main.rs crate:main deps:dep @@ -137,8 +165,36 @@ fn main() { } "#, expect![[r#" + ct RC (use dep::RC) st Rc (use dep::Rc) + st Rcar (use dep::Rcar) + ct RC (use dep::some_module::RC) st Rc (use dep::some_module::Rc) + st Rcar (use dep::some_module::Rcar) + "#]], + ); + check( + r#" +//- /lib.rs crate:dep +pub struct Barc; +pub struct Rcar; +pub struct Rc; +pub const RC: () = (); +pub mod some_module { + pub struct Bar; + pub struct Rcar; + pub struct Rc; + pub const RC: () = (); +} + +//- /main.rs crate:main deps:dep +fn main() { + RC$0 +} +"#, + expect![[r#" + ct RC (use dep::RC) + ct RC (use dep::some_module::RC) "#]], ); } @@ -841,8 +897,8 @@ fn main() { TES$0 }"#, expect![[r#" - ct TEST_CONST (use foo::TEST_CONST) - "#]], + ct TEST_CONST (use foo::TEST_CONST) + "#]], ); check( @@ -858,9 +914,9 @@ fn main() { tes$0 }"#, expect![[r#" - ct TEST_CONST (use foo::TEST_CONST) - fn test_function() (use foo::test_function) fn() -> i32 - "#]], + ct TEST_CONST (use foo::TEST_CONST) + fn test_function() (use foo::test_function) fn() -> i32 + "#]], ); check( @@ -873,9 +929,9 @@ mod foo { } fn main() { - Te$0 + Tes$0 }"#, - expect![[]], + expect![""], ); } diff --git a/src/tools/rust-analyzer/crates/ide-completion/src/tests/special.rs b/src/tools/rust-analyzer/crates/ide-completion/src/tests/special.rs index e80a289049f..d3dbd7cc227 100644 --- a/src/tools/rust-analyzer/crates/ide-completion/src/tests/special.rs +++ b/src/tools/rust-analyzer/crates/ide-completion/src/tests/special.rs @@ -2,10 +2,15 @@ use expect_test::{expect, Expect}; -use crate::tests::{ - check_edit, completion_list, completion_list_no_kw, completion_list_with_trigger_character, +use crate::{ + tests::{ + check_edit, completion_list, completion_list_no_kw, completion_list_with_trigger_character, + }, + CompletionItemKind, }; +use super::{do_completion_with_config, TEST_CONFIG}; + fn check_no_kw(ra_fixture: &str, expect: Expect) { let actual = completion_list_no_kw(ra_fixture); expect.assert_eq(&actual) @@ -1303,3 +1308,176 @@ struct Foo<T: PartialOrd "#, ); } + +fn check_signatures(src: &str, kind: CompletionItemKind, reduced: Expect, full: Expect) { + const FULL_SIGNATURES_CONFIG: crate::CompletionConfig = { + let mut x = TEST_CONFIG; + x.full_function_signatures = true; + x + }; + + // reduced signature + let completion = do_completion_with_config(TEST_CONFIG, src, kind); + assert!(completion[0].detail.is_some()); + reduced.assert_eq(completion[0].detail.as_ref().unwrap()); + + // full signature + let completion = do_completion_with_config(FULL_SIGNATURES_CONFIG, src, kind); + assert!(completion[0].detail.is_some()); + full.assert_eq(completion[0].detail.as_ref().unwrap()); +} + +#[test] +fn respects_full_function_signatures() { + check_signatures( + r#" +pub fn foo<'x, T>(x: &'x mut T) -> u8 where T: Clone, { 0u8 } +fn main() { fo$0 } +"#, + CompletionItemKind::SymbolKind(ide_db::SymbolKind::Function), + expect!("fn(&mut T) -> u8"), + expect!("pub fn foo<'x, T>(x: &'x mut T) -> u8 where T: Clone,"), + ); + + check_signatures( + r#" +struct Foo; +struct Bar; +impl Bar { + pub const fn baz(x: Foo) -> ! { loop {} }; +} + +fn main() { Bar::b$0 } +"#, + CompletionItemKind::SymbolKind(ide_db::SymbolKind::Function), + expect!("const fn(Foo) -> !"), + expect!("pub const fn baz(x: Foo) -> !"), + ); + + check_signatures( + r#" +struct Foo; +struct Bar; +impl Bar { + pub const fn baz<'foo>(&'foo mut self, x: &'foo Foo) -> ! { loop {} }; +} + +fn main() { + let mut bar = Bar; + bar.b$0 +} +"#, + CompletionItemKind::Method, + expect!("const fn(&'foo mut self, &Foo) -> !"), + expect!("pub const fn baz<'foo>(&'foo mut self, x: &'foo Foo) -> !"), + ); +} + +#[test] +fn skips_underscore() { + check_with_trigger_character( + r#" +fn foo(_$0) { } +"#, + Some('_'), + expect![[r#""#]], + ); + check_with_trigger_character( + r#" +fn foo(_: _$0) { } +"#, + Some('_'), + expect![[r#""#]], + ); + check_with_trigger_character( + r#" +fn foo<T>() { + foo::<_$0>(); +} +"#, + Some('_'), + expect![[r#""#]], + ); + // underscore expressions are fine, they are invalid so the user definitely meant to type an + // underscored name here + check_with_trigger_character( + r#" +fn foo() { + _$0 +} +"#, + Some('_'), + expect![[r#" + fn foo() fn() + bt u32 + kw const + kw crate:: + kw enum + kw extern + kw false + kw fn + kw for + kw if + kw if let + kw impl + kw let + kw loop + kw match + kw mod + kw return + kw self:: + kw static + kw struct + kw trait + kw true + kw type + kw union + kw unsafe + kw use + kw while + kw while let + sn macro_rules + sn pd + sn ppd + "#]], + ); +} + +#[test] +fn no_skip_underscore_ident() { + check_with_trigger_character( + r#" +fn foo(a_$0) { } +"#, + Some('_'), + expect![[r#" + kw mut + kw ref + "#]], + ); + check_with_trigger_character( + r#" +fn foo(_: a_$0) { } +"#, + Some('_'), + expect![[r#" + bt u32 + kw crate:: + kw self:: + "#]], + ); + check_with_trigger_character( + r#" +fn foo<T>() { + foo::<a_$0>(); +} +"#, + Some('_'), + expect![[r#" + tp T + bt u32 + kw crate:: + kw self:: + "#]], + ); +} diff --git a/src/tools/rust-analyzer/crates/ide-db/src/defs.rs b/src/tools/rust-analyzer/crates/ide-db/src/defs.rs index 4ce80532e8e..ef72fc3861a 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/defs.rs +++ b/src/tools/rust-analyzer/crates/ide-db/src/defs.rs @@ -161,8 +161,8 @@ impl IdentClass { ast::AwaitExpr(await_expr) => OperatorClass::classify_await(sema, &await_expr).map(IdentClass::Operator), ast::BinExpr(bin_expr) => OperatorClass::classify_bin(sema, &bin_expr).map(IdentClass::Operator), ast::IndexExpr(index_expr) => OperatorClass::classify_index(sema, &index_expr).map(IdentClass::Operator), - ast::PrefixExpr(prefix_expr) => OperatorClass::classify_prefix(sema,&prefix_expr).map(IdentClass::Operator), - ast::TryExpr(try_expr) => OperatorClass::classify_try(sema,&try_expr).map(IdentClass::Operator), + ast::PrefixExpr(prefix_expr) => OperatorClass::classify_prefix(sema, &prefix_expr).map(IdentClass::Operator), + ast::TryExpr(try_expr) => OperatorClass::classify_try(sema, &try_expr).map(IdentClass::Operator), _ => None, } } diff --git a/src/tools/rust-analyzer/crates/ide-db/src/famous_defs.rs b/src/tools/rust-analyzer/crates/ide-db/src/famous_defs.rs index b63dde2c21e..722517a7677 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/famous_defs.rs +++ b/src/tools/rust-analyzer/crates/ide-db/src/famous_defs.rs @@ -54,6 +54,10 @@ impl FamousDefs<'_, '_> { self.find_trait("core:convert:Into") } + pub fn core_convert_Index(&self) -> Option<Trait> { + self.find_trait("core:ops:Index") + } + pub fn core_option_Option(&self) -> Option<Enum> { self.find_enum("core:option:Option") } diff --git a/src/tools/rust-analyzer/crates/ide-db/src/generated/lints.rs b/src/tools/rust-analyzer/crates/ide-db/src/generated/lints.rs index 57563a17483..1cb6ff8627a 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/generated/lints.rs +++ b/src/tools/rust-analyzer/crates/ide-db/src/generated/lints.rs @@ -9,12 +9,18 @@ pub struct LintGroup { pub lint: Lint, pub children: &'static [&'static str], } + pub const DEFAULT_LINTS: &[Lint] = &[ Lint { label: "absolute_paths_not_starting_with_crate", description: r##"fully qualified paths that start with a module name instead of `crate`, `self`, or an extern crate name"##, }, Lint { label: "ambiguous_associated_items", description: r##"ambiguous associated items"## }, + Lint { + label: "ambiguous_glob_imports", + description: r##"detects certain glob imports that require reporting an ambiguity error"##, + }, + Lint { label: "ambiguous_glob_reexports", description: r##"ambiguous glob re-exports"## }, Lint { label: "anonymous_parameters", description: r##"detects anonymous parameters"## }, Lint { label: "arithmetic_overflow", description: r##"arithmetic operation overflows"## }, Lint { @@ -25,6 +31,10 @@ pub const DEFAULT_LINTS: &[Lint] = &[ label: "asm_sub_register", description: r##"using only a subset of a register for inline asm inputs"##, }, + Lint { + label: "async_fn_in_trait", + description: r##"use of `async fn` in definition of a publicly-reachable trait"##, + }, Lint { label: "bad_asm_style", description: r##"incorrect use of inline assembly"## }, Lint { label: "bare_trait_objects", @@ -40,6 +50,10 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"`break` expression with label and unlabeled loop as value expression"##, }, Lint { + label: "byte_slice_in_packed_struct_with_derive", + description: r##"`[u8]` or `str` used in a packed struct with `derive`"##, + }, + Lint { label: "cenum_impl_drop_cast", description: r##"a C-like enum implementing Drop is cast"##, }, @@ -52,6 +66,10 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"distinct impls distinguished only by the leak-check code"##, }, Lint { + label: "coinductive_overlap_in_coherence", + description: r##"impls that are not considered to overlap may be considered to overlap in the future"##, + }, + Lint { label: "conflicting_repr_hints", description: r##"conflicts between `#[repr(..)]` hints that were previously accepted and used in practice"##, }, @@ -60,10 +78,6 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"detects visually confusable pairs between identifiers"##, }, Lint { - label: "const_err", - description: r##"constant evaluation encountered erroneous expression"##, - }, - Lint { label: "const_evaluatable_unchecked", description: r##"detects a generic constant is used in a type without a emitting a warning"##, }, @@ -71,13 +85,25 @@ pub const DEFAULT_LINTS: &[Lint] = &[ label: "const_item_mutation", description: r##"detects attempts to mutate a `const` item"##, }, + Lint { + label: "const_patterns_without_partial_eq", + description: r##"constant in pattern does not implement `PartialEq`"##, + }, Lint { label: "dead_code", description: r##"detect unused, unexported items"## }, Lint { label: "deprecated", description: r##"detects use of deprecated items"## }, Lint { + label: "deprecated_cfg_attr_crate_type_name", + description: r##"detects usage of `#![cfg_attr(..., crate_type/crate_name = "...")]`"##, + }, + Lint { label: "deprecated_in_future", description: r##"detects use of items that will be deprecated in a future version"##, }, Lint { + label: "deprecated_where_clause_location", + description: r##"deprecated where clause location"##, + }, + Lint { label: "deref_into_dyn_supertrait", description: r##"`Deref` implementation usage with a supertrait trait object for output might be shadowed in the future"##, }, @@ -90,10 +116,23 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"bounds of the form `T: Drop` are most likely incorrect"##, }, Lint { + label: "dropping_copy_types", + description: r##"calls to `std::mem::drop` with a value that implements Copy"##, + }, + Lint { + label: "dropping_references", + description: r##"calls to `std::mem::drop` with a reference instead of an owned value"##, + }, + Lint { label: "duplicate_macro_attributes", description: r##"duplicated attribute"## }, + Lint { label: "dyn_drop", description: r##"trait objects of the form `dyn Drop` are useless"##, }, Lint { + label: "elided_lifetimes_in_associated_constant", + description: r##"elided lifetimes cannot be used in associated constants in impls"##, + }, + Lint { label: "elided_lifetimes_in_paths", description: r##"hidden lifetime parameters in types are deprecated"##, }, @@ -113,14 +152,38 @@ pub const DEFAULT_LINTS: &[Lint] = &[ label: "exported_private_dependencies", description: r##"public interface leaks type from a private dependency"##, }, + Lint { + label: "ffi_unwind_calls", + description: r##"call to foreign functions or function pointers with FFI-unwind ABI"##, + }, + Lint { + label: "for_loops_over_fallibles", + description: r##"for-looping over an `Option` or a `Result`, which is more clearly expressed as an `if let`"##, + }, Lint { label: "forbidden_lint_groups", description: r##"applying forbid to lint-groups"## }, Lint { + label: "forgetting_copy_types", + description: r##"calls to `std::mem::forget` with a value that implements Copy"##, + }, + Lint { + label: "forgetting_references", + description: r##"calls to `std::mem::forget` with a reference instead of an owned value"##, + }, + Lint { label: "function_item_references", description: r##"suggest casting to a function pointer when attempting to take references to function items"##, }, Lint { label: "future_incompatible", - description: r##"lint group for: forbidden-lint-groups, illegal-floating-point-literal-pattern, private-in-public, pub-use-of-private-extern-crate, invalid-type-param-default, const-err, unaligned-references, patterns-in-fns-without-body, missing-fragment-specifier, late-bound-lifetime-arguments, order-dependent-trait-objects, coherence-leak-check, unstable-name-collisions, where-clauses-object-safety, proc-macro-derive-resolution-fallback, macro-expanded-macro-exports-accessed-by-absolute-paths, ill-formed-attribute-input, conflicting-repr-hints, ambiguous-associated-items, mutable-borrow-reservation-conflict, indirect-structural-match, pointer-structural-match, nontrivial-structural-match, soft-unstable, cenum-impl-drop-cast, const-evaluatable-unchecked, uninhabited-static, unsupported-naked-functions, invalid-doc-attributes, semicolon-in-expressions-from-macros, legacy-derive-helpers, proc-macro-back-compat, unsupported-calling-conventions, deref-into-dyn-supertrait"##, + description: r##"lint group for: deref-into-dyn-supertrait, ambiguous-associated-items, ambiguous-glob-imports, byte-slice-in-packed-struct-with-derive, cenum-impl-drop-cast, coherence-leak-check, coinductive-overlap-in-coherence, conflicting-repr-hints, const-evaluatable-unchecked, const-patterns-without-partial-eq, deprecated-cfg-attr-crate-type-name, elided-lifetimes-in-associated-constant, forbidden-lint-groups, ill-formed-attribute-input, illegal-floating-point-literal-pattern, implied-bounds-entailment, indirect-structural-match, invalid-alignment, invalid-doc-attributes, invalid-type-param-default, late-bound-lifetime-arguments, legacy-derive-helpers, macro-expanded-macro-exports-accessed-by-absolute-paths, missing-fragment-specifier, nontrivial-structural-match, order-dependent-trait-objects, patterns-in-fns-without-body, pointer-structural-match, proc-macro-back-compat, proc-macro-derive-resolution-fallback, pub-use-of-private-extern-crate, repr-transparent-external-private-fields, semicolon-in-expressions-from-macros, soft-unstable, suspicious-auto-trait-impls, uninhabited-static, unstable-name-collisions, unstable-syntax-pre-expansion, unsupported-calling-conventions, where-clauses-object-safety"##, + }, + Lint { + label: "fuzzy_provenance_casts", + description: r##"a fuzzy integer to pointer cast is used"##, + }, + Lint { + label: "hidden_glob_reexports", + description: r##"name introduced by a private item shadows a name introduced by a public glob re-export"##, }, Lint { label: "ill_formed_attribute_input", @@ -131,6 +194,10 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"floating-point literals cannot be used in patterns"##, }, Lint { + label: "implied_bounds_entailment", + description: r##"impl method assumes more implied bounds than its corresponding trait method"##, + }, + Lint { label: "improper_ctypes", description: r##"proper use of libc types in foreign modules"##, }, @@ -156,6 +223,14 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"detects incompatible use of `#[inline(always)]` and `#[no_sanitize(...)]`"##, }, Lint { + label: "internal_features", + description: r##"internal features are not supposed to be used"##, + }, + Lint { + label: "invalid_alignment", + description: r##"raw pointers must be aligned before dereferencing"##, + }, + Lint { label: "invalid_atomic_ordering", description: r##"usage of invalid atomic ordering in atomic operations and memory fences"##, }, @@ -164,6 +239,26 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"detects invalid `#[doc(...)]` attributes"##, }, Lint { + label: "invalid_from_utf8", + description: r##"using a non UTF-8 literal in `std::str::from_utf8`"##, + }, + Lint { + label: "invalid_from_utf8_unchecked", + description: r##"using a non UTF-8 literal in `std::str::from_utf8_unchecked`"##, + }, + Lint { + label: "invalid_macro_export_arguments", + description: r##""invalid_parameter" isn't a valid argument for `#[macro_export]`"##, + }, + Lint { + label: "invalid_nan_comparisons", + description: r##"detects invalid floating point NaN comparisons"##, + }, + Lint { + label: "invalid_reference_casting", + description: r##"casts of `&T` to `&mut T` without interior mutability"##, + }, + Lint { label: "invalid_type_param_default", description: r##"type parameter default erroneously allowed in invalid location"##, }, @@ -189,6 +284,26 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"detects derive helper attributes that are used before they are introduced"##, }, Lint { + label: "let_underscore", + description: r##"lint group for: let-underscore-drop, let-underscore-lock"##, + }, + Lint { + label: "let_underscore_drop", + description: r##"non-binding let on a type that implements `Drop`"##, + }, + Lint { + label: "let_underscore_lock", + description: r##"non-binding let on a synchronization lock"##, + }, + Lint { + label: "long_running_const_eval", + description: r##"detects long const eval operations"##, + }, + Lint { + label: "lossy_provenance_casts", + description: r##"a lossy pointer to integer cast is used"##, + }, + Lint { label: "macro_expanded_macro_exports_accessed_by_absolute_paths", description: r##"macro-expanded `macro_export` macros from the current crate cannot be referred to by absolute paths"##, }, @@ -197,6 +312,10 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"the `#[macro_use]` attribute is now deprecated in favor of using macros via the module system"##, }, Lint { + label: "map_unit_fn", + description: r##"`Iterator::map` call that discard the iterator's values"##, + }, + Lint { label: "meta_variable_misuse", description: r##"possible meta-variable misuse at macro definition"##, }, @@ -222,16 +341,20 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"detects Unicode scripts whose mixed script confusables codepoints are solely used"##, }, Lint { + label: "multiple_supertrait_upcastable", + description: r##"detect when an object-safe trait has multiple supertraits"##, + }, + Lint { label: "must_not_suspend", description: r##"use of a `#[must_not_suspend]` value across a yield point"##, }, Lint { - label: "mutable_borrow_reservation_conflict", - description: r##"reservation of a two-phased borrow conflicts with other shared borrows"##, + label: "mutable_transmutes", + description: r##"transmuting &T to &mut T is undefined behavior, even if the reference is unused"##, }, Lint { - label: "mutable_transmutes", - description: r##"mutating transmuted &mut T from &T may cause undefined behavior"##, + label: "named_arguments_used_positionally", + description: r##"named arguments in format used positionally"##, }, Lint { label: "named_asm_labels", description: r##"named labels in inline assembly"## }, Lint { @@ -277,6 +400,10 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"detects the use of well-known noop methods"##, }, Lint { + label: "opaque_hidden_inferred_bound", + description: r##"detects the use of nested `impl Trait` types in associated type bounds that are not general enough"##, + }, + Lint { label: "order_dependent_trait_objects", description: r##"trait-object types were treated as different depending on marker-trait order"##, }, @@ -295,8 +422,12 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"pointers are not structural-match"##, }, Lint { - label: "private_in_public", - description: r##"detect private items in public interfaces not caught by the old implementation"##, + label: "private_bounds", + description: r##"private type in secondary interface of an item"##, + }, + Lint { + label: "private_interfaces", + description: r##"private type in primary interface of an item"##, }, Lint { label: "proc_macro_back_compat", @@ -315,12 +446,20 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"detects unnecessary trailing semicolons"##, }, Lint { + label: "refining_impl_trait", + description: r##"impl trait in impl method signature does not match trait method signature"##, + }, + Lint { label: "renamed_and_removed_lints", description: r##"lints that have been renamed or removed"##, }, Lint { + label: "repr_transparent_external_private_fields", + description: r##"transparent type contains an external ZST that is marked #[non_exhaustive] or contains private fields"##, + }, + Lint { label: "rust_2018_compatibility", - description: r##"lint group for: keyword-idents, anonymous-parameters, tyvar-behind-raw-pointer, absolute-paths-not-starting-with-crate"##, + description: r##"lint group for: keyword-idents, anonymous-parameters, absolute-paths-not-starting-with-crate, tyvar-behind-raw-pointer"##, }, Lint { label: "rust_2018_idioms", @@ -328,7 +467,7 @@ pub const DEFAULT_LINTS: &[Lint] = &[ }, Lint { label: "rust_2021_compatibility", - description: r##"lint group for: ellipsis-inclusive-range-patterns, bare-trait-objects, rust-2021-incompatible-closure-captures, rust-2021-incompatible-or-patterns, rust-2021-prelude-collisions, rust-2021-prefixes-incompatible-syntax, array-into-iter, non-fmt-panics"##, + description: r##"lint group for: ellipsis-inclusive-range-patterns, bare-trait-objects, rust-2021-incompatible-closure-captures, rust-2021-incompatible-or-patterns, rust-2021-prefixes-incompatible-syntax, rust-2021-prelude-collisions, array-into-iter, non-fmt-panics"##, }, Lint { label: "rust_2021_incompatible_closure_captures", @@ -359,14 +498,30 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"a feature gate that doesn't break dependent crates"##, }, Lint { + label: "special_module_name", + description: r##"module declarations for files with a special meaning"##, + }, + Lint { label: "stable_features", description: r##"stable features found in `#[feature]` directive"##, }, Lint { + label: "suspicious_auto_trait_impls", + description: r##"the rules governing auto traits have recently changed resulting in potential breakage"##, + }, + Lint { + label: "suspicious_double_ref_op", + description: r##"suspicious call of trait method on `&&T`"##, + }, + Lint { label: "temporary_cstring_as_ptr", description: r##"detects getting the inner pointer of a temporary `CString`"##, }, Lint { + label: "test_unstable_lint", + description: r##"this unstable lint is only for testing"##, + }, + Lint { label: "text_direction_codepoint_in_comment", description: r##"invisible directionality-changing codepoints in comment"##, }, @@ -395,10 +550,6 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"raw pointer to an inference variable"##, }, Lint { - label: "unaligned_references", - description: r##"detects unaligned references to fields of packed structs"##, - }, - Lint { label: "uncommon_codepoints", description: r##"detects uncommon Unicode codepoints in identifiers"##, }, @@ -410,6 +561,26 @@ pub const DEFAULT_LINTS: &[Lint] = &[ label: "unconditional_recursion", description: r##"functions that cannot return without calling themselves"##, }, + Lint { + label: "undefined_naked_function_abi", + description: r##"undefined naked function ABI"##, + }, + Lint { + label: "undropped_manually_drops", + description: r##"calls to `std::mem::drop` with `std::mem::ManuallyDrop` instead of it's inner value"##, + }, + Lint { + label: "unexpected_cfgs", + description: r##"detects unexpected names and values in `#[cfg]` conditions"##, + }, + Lint { + label: "unfulfilled_lint_expectations", + description: r##"unfulfilled lint expectation"##, + }, + Lint { + label: "ungated_async_fn_track_caller", + description: r##"enabling track_caller on an async fn is a no-op unless the async_fn_track_caller feature is enabled"##, + }, Lint { label: "uninhabited_static", description: r##"uninhabited static"## }, Lint { label: "unknown_crate_types", @@ -417,16 +588,27 @@ pub const DEFAULT_LINTS: &[Lint] = &[ }, Lint { label: "unknown_lints", description: r##"unrecognized lint attribute"## }, Lint { + label: "unknown_or_malformed_diagnostic_attributes", + description: r##"unrecognized or malformed diagnostic attribute"##, + }, + Lint { label: "unnameable_test_items", description: r##"detects an item that cannot be named being marked as `#[test_case]`"##, }, + Lint { + label: "unnameable_types", + description: r##"effective visibility of a type is larger than the area in which it can be named"##, + }, Lint { label: "unreachable_code", description: r##"detects unreachable code paths"## }, Lint { label: "unreachable_patterns", description: r##"detects unreachable patterns"## }, Lint { label: "unreachable_pub", description: r##"`pub` items not reachable from crate root"##, }, - Lint { label: "unsafe_code", description: r##"usage of `unsafe` code"## }, + Lint { + label: "unsafe_code", + description: r##"usage of `unsafe` code and other potentially unsound constructs"##, + }, Lint { label: "unsafe_op_in_unsafe_fn", description: r##"unsafe operations in unsafe functions without an explicit unsafe block are deprecated"##, @@ -440,16 +622,16 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"detects name collision with an existing but unstable method"##, }, Lint { - label: "unsupported_calling_conventions", - description: r##"use of unsupported calling convention"##, + label: "unstable_syntax_pre_expansion", + description: r##"unstable syntax can change at any point in the future, causing a hard error!"##, }, Lint { - label: "unsupported_naked_functions", - description: r##"unsupported naked function definitions"##, + label: "unsupported_calling_conventions", + description: r##"use of unsupported calling convention"##, }, Lint { label: "unused", - description: r##"lint group for: unused-imports, unused-variables, unused-assignments, dead-code, unused-mut, unreachable-code, unreachable-patterns, unused-must-use, unused-unsafe, path-statements, unused-attributes, unused-macros, unused-allocation, unused-doc-comments, unused-extern-crates, unused-features, unused-labels, unused-parens, unused-braces, redundant-semicolons"##, + description: r##"lint group for: unused-imports, unused-variables, unused-assignments, dead-code, unused-mut, unreachable-code, unreachable-patterns, unused-must-use, unused-unsafe, path-statements, unused-attributes, unused-macros, unused-macro-rules, unused-allocation, unused-doc-comments, unused-extern-crates, unused-features, unused-labels, unused-parens, unused-braces, redundant-semicolons, map-unit-fn"##, }, Lint { label: "unused_allocation", @@ -460,6 +642,10 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"detect assignments that will never be read"##, }, Lint { + label: "unused_associated_type_bounds", + description: r##"detects unused `Foo = Bar` bounds in `dyn Trait<Foo = Bar>`"##, + }, + Lint { label: "unused_attributes", description: r##"detects attributes that were not used by the compiler"##, }, @@ -491,6 +677,10 @@ pub const DEFAULT_LINTS: &[Lint] = &[ label: "unused_lifetimes", description: r##"detects lifetime parameters that are never used"##, }, + Lint { + label: "unused_macro_rules", + description: r##"detects macro rules that were not used"##, + }, Lint { label: "unused_macros", description: r##"detects macros that were not used"## }, Lint { label: "unused_must_use", @@ -512,6 +702,10 @@ pub const DEFAULT_LINTS: &[Lint] = &[ label: "unused_results", description: r##"unused result of an expression in a statement"##, }, + Lint { + label: "unused_tuple_struct_fields", + description: r##"detects tuple struct fields that are never read"##, + }, Lint { label: "unused_unsafe", description: r##"unnecessary use of an `unsafe` block"## }, Lint { label: "unused_variables", @@ -522,6 +716,10 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"detects deprecation attributes with no effect"##, }, Lint { + label: "useless_ptr_null_checks", + description: r##"useless checking of non-null-typed pointer"##, + }, + Lint { label: "variant_size_differences", description: r##"detects enums with widely varying variant sizes"##, }, @@ -542,51 +740,65 @@ pub const DEFAULT_LINTS: &[Lint] = &[ description: r##"suggest using `loop { }` instead of `while true { }`"##, }, ]; + pub const DEFAULT_LINT_GROUPS: &[LintGroup] = &[ LintGroup { lint: Lint { label: "future_incompatible", - description: r##"lint group for: forbidden-lint-groups, illegal-floating-point-literal-pattern, private-in-public, pub-use-of-private-extern-crate, invalid-type-param-default, const-err, unaligned-references, patterns-in-fns-without-body, missing-fragment-specifier, late-bound-lifetime-arguments, order-dependent-trait-objects, coherence-leak-check, unstable-name-collisions, where-clauses-object-safety, proc-macro-derive-resolution-fallback, macro-expanded-macro-exports-accessed-by-absolute-paths, ill-formed-attribute-input, conflicting-repr-hints, ambiguous-associated-items, mutable-borrow-reservation-conflict, indirect-structural-match, pointer-structural-match, nontrivial-structural-match, soft-unstable, cenum-impl-drop-cast, const-evaluatable-unchecked, uninhabited-static, unsupported-naked-functions, invalid-doc-attributes, semicolon-in-expressions-from-macros, legacy-derive-helpers, proc-macro-back-compat, unsupported-calling-conventions, deref-into-dyn-supertrait"##, + description: r##"lint group for: deref-into-dyn-supertrait, ambiguous-associated-items, ambiguous-glob-imports, byte-slice-in-packed-struct-with-derive, cenum-impl-drop-cast, coherence-leak-check, coinductive-overlap-in-coherence, conflicting-repr-hints, const-evaluatable-unchecked, const-patterns-without-partial-eq, deprecated-cfg-attr-crate-type-name, elided-lifetimes-in-associated-constant, forbidden-lint-groups, ill-formed-attribute-input, illegal-floating-point-literal-pattern, implied-bounds-entailment, indirect-structural-match, invalid-alignment, invalid-doc-attributes, invalid-type-param-default, late-bound-lifetime-arguments, legacy-derive-helpers, macro-expanded-macro-exports-accessed-by-absolute-paths, missing-fragment-specifier, nontrivial-structural-match, order-dependent-trait-objects, patterns-in-fns-without-body, pointer-structural-match, proc-macro-back-compat, proc-macro-derive-resolution-fallback, pub-use-of-private-extern-crate, repr-transparent-external-private-fields, semicolon-in-expressions-from-macros, soft-unstable, suspicious-auto-trait-impls, uninhabited-static, unstable-name-collisions, unstable-syntax-pre-expansion, unsupported-calling-conventions, where-clauses-object-safety"##, }, children: &[ + "deref_into_dyn_supertrait", + "ambiguous_associated_items", + "ambiguous_glob_imports", + "byte_slice_in_packed_struct_with_derive", + "cenum_impl_drop_cast", + "coherence_leak_check", + "coinductive_overlap_in_coherence", + "conflicting_repr_hints", + "const_evaluatable_unchecked", + "const_patterns_without_partial_eq", + "deprecated_cfg_attr_crate_type_name", + "elided_lifetimes_in_associated_constant", "forbidden_lint_groups", + "ill_formed_attribute_input", "illegal_floating_point_literal_pattern", - "private_in_public", - "pub_use_of_private_extern_crate", + "implied_bounds_entailment", + "indirect_structural_match", + "invalid_alignment", + "invalid_doc_attributes", "invalid_type_param_default", - "const_err", - "unaligned_references", - "patterns_in_fns_without_body", - "missing_fragment_specifier", "late_bound_lifetime_arguments", - "order_dependent_trait_objects", - "coherence_leak_check", - "unstable_name_collisions", - "where_clauses_object_safety", - "proc_macro_derive_resolution_fallback", + "legacy_derive_helpers", "macro_expanded_macro_exports_accessed_by_absolute_paths", - "ill_formed_attribute_input", - "conflicting_repr_hints", - "ambiguous_associated_items", - "mutable_borrow_reservation_conflict", - "indirect_structural_match", - "pointer_structural_match", + "missing_fragment_specifier", "nontrivial_structural_match", + "order_dependent_trait_objects", + "patterns_in_fns_without_body", + "pointer_structural_match", + "proc_macro_back_compat", + "proc_macro_derive_resolution_fallback", + "pub_use_of_private_extern_crate", + "repr_transparent_external_private_fields", + "semicolon_in_expressions_from_macros", "soft_unstable", - "cenum_impl_drop_cast", - "const_evaluatable_unchecked", + "suspicious_auto_trait_impls", "uninhabited_static", - "unsupported_naked_functions", - "invalid_doc_attributes", - "semicolon_in_expressions_from_macros", - "legacy_derive_helpers", - "proc_macro_back_compat", + "unstable_name_collisions", + "unstable_syntax_pre_expansion", "unsupported_calling_conventions", - "deref_into_dyn_supertrait", + "where_clauses_object_safety", ], }, LintGroup { lint: Lint { + label: "let_underscore", + description: r##"lint group for: let-underscore-drop, let-underscore-lock"##, + }, + children: &["let_underscore_drop", "let_underscore_lock"], + }, + LintGroup { + lint: Lint { label: "nonstandard_style", description: r##"lint group for: non-camel-case-types, non-snake-case, non-upper-case-globals"##, }, @@ -595,13 +807,13 @@ pub const DEFAULT_LINT_GROUPS: &[LintGroup] = &[ LintGroup { lint: Lint { label: "rust_2018_compatibility", - description: r##"lint group for: keyword-idents, anonymous-parameters, tyvar-behind-raw-pointer, absolute-paths-not-starting-with-crate"##, + description: r##"lint group for: keyword-idents, anonymous-parameters, absolute-paths-not-starting-with-crate, tyvar-behind-raw-pointer"##, }, children: &[ "keyword_idents", "anonymous_parameters", - "tyvar_behind_raw_pointer", "absolute_paths_not_starting_with_crate", + "tyvar_behind_raw_pointer", ], }, LintGroup { @@ -620,15 +832,15 @@ pub const DEFAULT_LINT_GROUPS: &[LintGroup] = &[ LintGroup { lint: Lint { label: "rust_2021_compatibility", - description: r##"lint group for: ellipsis-inclusive-range-patterns, bare-trait-objects, rust-2021-incompatible-closure-captures, rust-2021-incompatible-or-patterns, rust-2021-prelude-collisions, rust-2021-prefixes-incompatible-syntax, array-into-iter, non-fmt-panics"##, + description: r##"lint group for: ellipsis-inclusive-range-patterns, bare-trait-objects, rust-2021-incompatible-closure-captures, rust-2021-incompatible-or-patterns, rust-2021-prefixes-incompatible-syntax, rust-2021-prelude-collisions, array-into-iter, non-fmt-panics"##, }, children: &[ "ellipsis_inclusive_range_patterns", "bare_trait_objects", "rust_2021_incompatible_closure_captures", "rust_2021_incompatible_or_patterns", - "rust_2021_prelude_collisions", "rust_2021_prefixes_incompatible_syntax", + "rust_2021_prelude_collisions", "array_into_iter", "non_fmt_panics", ], @@ -636,7 +848,7 @@ pub const DEFAULT_LINT_GROUPS: &[LintGroup] = &[ LintGroup { lint: Lint { label: "unused", - description: r##"lint group for: unused-imports, unused-variables, unused-assignments, dead-code, unused-mut, unreachable-code, unreachable-patterns, unused-must-use, unused-unsafe, path-statements, unused-attributes, unused-macros, unused-allocation, unused-doc-comments, unused-extern-crates, unused-features, unused-labels, unused-parens, unused-braces, redundant-semicolons"##, + description: r##"lint group for: unused-imports, unused-variables, unused-assignments, dead-code, unused-mut, unreachable-code, unreachable-patterns, unused-must-use, unused-unsafe, path-statements, unused-attributes, unused-macros, unused-macro-rules, unused-allocation, unused-doc-comments, unused-extern-crates, unused-features, unused-labels, unused-parens, unused-braces, redundant-semicolons, map-unit-fn"##, }, children: &[ "unused_imports", @@ -651,6 +863,7 @@ pub const DEFAULT_LINT_GROUPS: &[LintGroup] = &[ "path_statements", "unused_attributes", "unused_macros", + "unused_macro_rules", "unused_allocation", "unused_doc_comments", "unused_extern_crates", @@ -659,6 +872,7 @@ pub const DEFAULT_LINT_GROUPS: &[LintGroup] = &[ "unused_parens", "unused_braces", "redundant_semicolons", + "map_unit_fn", ], }, LintGroup { @@ -673,7 +887,7 @@ pub const DEFAULT_LINT_GROUPS: &[LintGroup] = &[ pub const RUSTDOC_LINTS: &[Lint] = &[ Lint { label: "rustdoc::all", - description: r##"lint group for: rustdoc::broken-intra-doc-links, rustdoc::private-intra-doc-links, rustdoc::missing-doc-code-examples, rustdoc::private-doc-tests, rustdoc::invalid-codeblock-attributes, rustdoc::invalid-rust-codeblocks, rustdoc::invalid-html-tags, rustdoc::bare-urls, rustdoc::missing-crate-level-docs"##, + description: r##"lint group for: rustdoc::broken-intra-doc-links, rustdoc::private-intra-doc-links, rustdoc::private-doc-tests, rustdoc::invalid-codeblock-attributes, rustdoc::invalid-rust-codeblocks, rustdoc::invalid-html-tags, rustdoc::bare-urls, rustdoc::missing-crate-level-docs, rustdoc::unescaped-backticks, rustdoc::redundant-explicit-links"##, }, Lint { label: "rustdoc::bare_urls", description: r##"detects URLs that are not hyperlinks"## }, Lint { @@ -708,27 +922,70 @@ pub const RUSTDOC_LINTS: &[Lint] = &[ label: "rustdoc::private_intra_doc_links", description: r##"linking from a public item to a private one"##, }, + Lint { + label: "rustdoc::redundant_explicit_links", + description: r##"detects redundant explicit links in doc comments"##, + }, + Lint { + label: "rustdoc::unescaped_backticks", + description: r##"detects unescaped backticks in doc comments"##, + }, ]; + pub const RUSTDOC_LINT_GROUPS: &[LintGroup] = &[LintGroup { lint: Lint { label: "rustdoc::all", - description: r##"lint group for: rustdoc::broken-intra-doc-links, rustdoc::private-intra-doc-links, rustdoc::missing-doc-code-examples, rustdoc::private-doc-tests, rustdoc::invalid-codeblock-attributes, rustdoc::invalid-rust-codeblocks, rustdoc::invalid-html-tags, rustdoc::bare-urls, rustdoc::missing-crate-level-docs"##, + description: r##"lint group for: rustdoc::broken-intra-doc-links, rustdoc::private-intra-doc-links, rustdoc::private-doc-tests, rustdoc::invalid-codeblock-attributes, rustdoc::invalid-rust-codeblocks, rustdoc::invalid-html-tags, rustdoc::bare-urls, rustdoc::missing-crate-level-docs, rustdoc::unescaped-backticks, rustdoc::redundant-explicit-links"##, }, children: &[ "rustdoc::broken_intra_doc_links", "rustdoc::private_intra_doc_links", - "rustdoc::missing_doc_code_examples", "rustdoc::private_doc_tests", "rustdoc::invalid_codeblock_attributes", "rustdoc::invalid_rust_codeblocks", "rustdoc::invalid_html_tags", "rustdoc::bare_urls", "rustdoc::missing_crate_level_docs", + "rustdoc::unescaped_backticks", + "rustdoc::redundant_explicit_links", ], }]; pub const FEATURES: &[Lint] = &[ Lint { + label: "aarch64_ver_target_feature", + description: r##"# `aarch64_ver_target_feature` + +The tracking issue for this feature is: [#44839] + +[#44839]: https://github.com/rust-lang/rust/issues/44839 + +------------------------ +"##, + }, + Lint { + label: "abi_amdgpu_kernel", + description: r##"# `abi_amdgpu_kernel` + +The tracking issue for this feature is: [#51575] + +[#51575]: https://github.com/rust-lang/rust/issues/51575 + +------------------------ +"##, + }, + Lint { + label: "abi_avr_interrupt", + description: r##"# `abi_avr_interrupt` + +The tracking issue for this feature is: [#69664] + +[#69664]: https://github.com/rust-lang/rust/issues/69664 + +------------------------ +"##, + }, + Lint { label: "abi_c_cmse_nonsecure_call", description: r##"# `abi_c_cmse_nonsecure_call` @@ -931,6 +1188,121 @@ $ cat $(find -name '*.s') "##, }, Lint { + label: "abi_riscv_interrupt", + description: r##"# `abi_riscv_interrupt` + +The tracking issue for this feature is: [#111889] + +[#111889]: https://github.com/rust-lang/rust/issues/111889 + +------------------------ +"##, + }, + Lint { + label: "abi_unadjusted", + description: r##"# `abi_unadjusted` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "abi_vectorcall", + description: r##"# `abi_vectorcall` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "abi_x86_interrupt", + description: r##"# `abi_x86_interrupt` + +The tracking issue for this feature is: [#40180] + +[#40180]: https://github.com/rust-lang/rust/issues/40180 + +------------------------ +"##, + }, + Lint { + label: "absolute_path", + description: r##"# `absolute_path` + +The tracking issue for this feature is: [#92750] + +[#92750]: https://github.com/rust-lang/rust/issues/92750 + +------------------------ +"##, + }, + Lint { + label: "addr_parse_ascii", + description: r##"# `addr_parse_ascii` + +The tracking issue for this feature is: [#101035] + +[#101035]: https://github.com/rust-lang/rust/issues/101035 + +------------------------ +"##, + }, + Lint { + label: "adt_const_params", + description: r##"# `adt_const_params` + +The tracking issue for this feature is: [#95174] + +[#95174]: https://github.com/rust-lang/rust/issues/95174 + +------------------------ +"##, + }, + Lint { + label: "alloc_error_handler", + description: r##"# `alloc_error_handler` + +The tracking issue for this feature is: [#51540] + +[#51540]: https://github.com/rust-lang/rust/issues/51540 + +------------------------ +"##, + }, + Lint { + label: "alloc_error_hook", + description: r##"# `alloc_error_hook` + +The tracking issue for this feature is: [#51245] + +[#51245]: https://github.com/rust-lang/rust/issues/51245 + +------------------------ +"##, + }, + Lint { + label: "alloc_internals", + description: r##"# `alloc_internals` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "alloc_layout_extra", + description: r##"# `alloc_layout_extra` + +The tracking issue for this feature is: [#55724] + +[#55724]: https://github.com/rust-lang/rust/issues/55724 + +------------------------ +"##, + }, + Lint { label: "allocator_api", description: r##"# `allocator_api` @@ -961,53 +1333,171 @@ compiler. "##, }, Lint { - label: "arbitrary_enum_discriminant", - description: r##"# `arbitrary_enum_discriminant` + label: "allow_internal_unsafe", + description: r##"# `allow_internal_unsafe` -The tracking issue for this feature is: [#60553] +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. -[#60553]: https://github.com/rust-lang/rust/issues/60553 +------------------------ +"##, + }, + Lint { + label: "allow_internal_unstable", + description: r##"# `allow_internal_unstable` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. ------------------------ +"##, + }, + Lint { + label: "anonymous_lifetime_in_impl_trait", + description: r##"# `anonymous_lifetime_in_impl_trait` -The `arbitrary_enum_discriminant` feature permits tuple-like and -struct-like enum variants with `#[repr(<int-type>)]` to have explicit discriminants. +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. -## Examples +------------------------ +"##, + }, + Lint { + label: "arbitrary_self_types", + description: r##"# `arbitrary_self_types` -```rust -#![feature(arbitrary_enum_discriminant)] - -#[allow(dead_code)] -#[repr(u8)] -enum Enum { - Unit = 3, - Tuple(u16) = 2, - Struct { - a: u8, - b: u16, - } = 1, -} +The tracking issue for this feature is: [#44874] -impl Enum { - fn tag(&self) -> u8 { - unsafe { *(self as *const Self as *const u8) } - } -} +[#44874]: https://github.com/rust-lang/rust/issues/44874 -assert_eq!(3, Enum::Unit.tag()); -assert_eq!(2, Enum::Tuple(5).tag()); -assert_eq!(1, Enum::Struct{a: 7, b: 11}.tag()); -``` +------------------------ +"##, + }, + Lint { + label: "arc_unwrap_or_clone", + description: r##"# `arc_unwrap_or_clone` + +The tracking issue for this feature is: [#93610] + +[#93610]: https://github.com/rust-lang/rust/issues/93610 + +------------------------ +"##, + }, + Lint { + label: "arm_target_feature", + description: r##"# `arm_target_feature` + +The tracking issue for this feature is: [#44839] + +[#44839]: https://github.com/rust-lang/rust/issues/44839 + +------------------------ +"##, + }, + Lint { + label: "array_chunks", + description: r##"# `array_chunks` + +The tracking issue for this feature is: [#74985] + +[#74985]: https://github.com/rust-lang/rust/issues/74985 + +------------------------ +"##, + }, + Lint { + label: "array_into_iter_constructors", + description: r##"# `array_into_iter_constructors` + +The tracking issue for this feature is: [#91583] + +[#91583]: https://github.com/rust-lang/rust/issues/91583 + +------------------------ +"##, + }, + Lint { + label: "array_methods", + description: r##"# `array_methods` + +The tracking issue for this feature is: [#76118] + +[#76118]: https://github.com/rust-lang/rust/issues/76118 + +------------------------ +"##, + }, + Lint { + label: "array_try_from_fn", + description: r##"# `array_try_from_fn` + +The tracking issue for this feature is: [#89379] + +[#89379]: https://github.com/rust-lang/rust/issues/89379 + +------------------------ +"##, + }, + Lint { + label: "array_try_map", + description: r##"# `array_try_map` + +The tracking issue for this feature is: [#79711] + +[#79711]: https://github.com/rust-lang/rust/issues/79711 + +------------------------ +"##, + }, + Lint { + label: "array_windows", + description: r##"# `array_windows` + +The tracking issue for this feature is: [#75027] + +[#75027]: https://github.com/rust-lang/rust/issues/75027 + +------------------------ +"##, + }, + Lint { + label: "as_array_of_cells", + description: r##"# `as_array_of_cells` + +The tracking issue for this feature is: [#88248] + +[#88248]: https://github.com/rust-lang/rust/issues/88248 + +------------------------ +"##, + }, + Lint { + label: "ascii_char", + description: r##"# `ascii_char` + +The tracking issue for this feature is: [#110998] + +[#110998]: https://github.com/rust-lang/rust/issues/110998 + +------------------------ +"##, + }, + Lint { + label: "ascii_char_variants", + description: r##"# `ascii_char_variants` + +The tracking issue for this feature is: [#110998] + +[#110998]: https://github.com/rust-lang/rust/issues/110998 + +------------------------ "##, }, Lint { label: "asm_const", description: r##"# `asm_const` -The tracking issue for this feature is: [#72016] +The tracking issue for this feature is: [#93332] -[#72016]: https://github.com/rust-lang/rust/issues/72016 +[#93332]: https://github.com/rust-lang/rust/issues/93332 ------------------------ @@ -1020,9 +1510,9 @@ This feature adds a `const <expr>` operand type to `asm!` and `global_asm!`. label: "asm_experimental_arch", description: r##"# `asm_experimental_arch` -The tracking issue for this feature is: [#72016] +The tracking issue for this feature is: [#93335] -[#72016]: https://github.com/rust-lang/rust/issues/72016 +[#93335]: https://github.com/rust-lang/rust/issues/93335 ------------------------ @@ -1035,6 +1525,10 @@ This feature tracks `asm!` and `global_asm!` support for the following architect - BPF - SPIR-V - AVR +- MSP430 +- M68k +- CSKY +- s390x ## Register classes @@ -1059,6 +1553,14 @@ This feature tracks `asm!` and `global_asm!` support for the following architect | AVR | `reg_pair` | `r3r2` .. `r25r24`, `X`, `Z` | `r` | | AVR | `reg_iw` | `r25r24`, `X`, `Z` | `w` | | AVR | `reg_ptr` | `X`, `Z` | `e` | +| MSP430 | `reg` | `r[0-15]` | `r` | +| M68k | `reg` | `d[0-7]`, `a[0-7]` | `r` | +| M68k | `reg_data` | `d[0-7]` | `d` | +| M68k | `reg_addr` | `a[0-3]` | `a` | +| CSKY | `reg` | `r[0-31]` | `r` | +| CSKY | `freg` | `f[0-31]` | `f` | +| s390x | `reg` | `r[0-10]`, `r[12-14]` | `r` | +| s390x | `freg` | `f[0-15]` | `f` | > **Notes**: > - NVPTX doesn't have a fixed register set, so named registers are not supported. @@ -1087,6 +1589,13 @@ This feature tracks `asm!` and `global_asm!` support for the following architect | BPF | `wreg` | `alu32` | `i8` `i16` `i32` | | AVR | `reg`, `reg_upper` | None | `i8` | | AVR | `reg_pair`, `reg_iw`, `reg_ptr` | None | `i16` | +| MSP430 | `reg` | None | `i8`, `i16` | +| M68k | `reg`, `reg_addr` | None | `i16`, `i32` | +| M68k | `reg_data` | None | `i8`, `i16`, `i32` | +| CSKY | `reg` | None | `i8`, `i16`, `i32` | +| CSKY | `freg` | None | `f32`, | +| s390x | `reg` | None | `i8`, `i16`, `i32`, `i64` | +| s390x | `freg` | None | `f32`, `f64` | ## Register aliases @@ -1100,13 +1609,36 @@ This feature tracks `asm!` and `global_asm!` support for the following architect | AVR | `XL` | `r26` | | AVR | `ZH` | `r31` | | AVR | `ZL` | `r30` | +| MSP430 | `r0` | `pc` | +| MSP430 | `r1` | `sp` | +| MSP430 | `r2` | `sr` | +| MSP430 | `r3` | `cg` | +| MSP430 | `r4` | `fp` | +| M68k | `a5` | `bp` | +| M68k | `a6` | `fp` | +| M68k | `a7` | `sp`, `usp`, `ssp`, `isp` | +| CSKY | `r[0-3]` | `a[0-3]` | +| CSKY | `r[4-11]` | `l[0-7]` | +| CSKY | `r[12-13]` | `t[0-1]` | +| CSKY | `r14` | `sp` | +| CSKY | `r15` | `lr` | +| CSKY | `r[16-17]` | `l[8-9]` | +| CSKY | `r[18-25]` | `t[2-9]` | +| CSKY | `r28` | `rgb` | +| CSKY | `r29` | `rtb` | +| CSKY | `r30` | `svbr` | +| CSKY | `r31` | `tls` | + +> **Notes**: +> - TI does not mandate a frame pointer for MSP430, but toolchains are allowed + to use one; LLVM uses `r4`. ## Unsupported registers | Architecture | Unsupported register | Reason | | ------------ | --------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -| All | `sp` | The stack pointer must be restored to its original value at the end of an asm code block. | -| All | `fr` (Hexagon), `$fp` (MIPS), `Y` (AVR) | The frame pointer cannot be used as an input or output. | +| All | `sp`, `r15` (s390x) | The stack pointer must be restored to its original value at the end of an asm code block. | +| All | `fr` (Hexagon), `$fp` (MIPS), `Y` (AVR), `r4` (MSP430), `a6` (M68k), `r11` (s390x) | The frame pointer cannot be used as an input or output. | | All | `r19` (Hexagon) | This is used internally by LLVM as a "base pointer" for functions with complex stack frames. | | MIPS | `$0` or `$zero` | This is a constant zero register which can't be modified. | | MIPS | `$1` or `$at` | Reserved for assembler. | @@ -1115,6 +1647,15 @@ This feature tracks `asm!` and `global_asm!` support for the following architect | MIPS | `$ra` | Return address cannot be used as inputs or outputs. | | Hexagon | `lr` | This is the link register which cannot be used as an input or output. | | AVR | `r0`, `r1`, `r1r0` | Due to an issue in LLVM, the `r0` and `r1` registers cannot be used as inputs or outputs. If modified, they must be restored to their original values before the end of the block. | +|MSP430 | `r0`, `r2`, `r3` | These are the program counter, status register, and constant generator respectively. Neither the status register nor constant generator can be written to. | +| M68k | `a4`, `a5` | Used internally by LLVM for the base pointer and global base pointer. | +| CSKY | `r7`, `r28` | Used internally by LLVM for the base pointer and global base pointer. | +| CSKY | `r8` | Used internally by LLVM for the frame pointer. | +| CSKY | `r14` | Used internally by LLVM for the stack pointer. | +| CSKY | `r15` | This is the link register. | +| CSKY | `r[26-30]` | Reserved by its ABI. | +| CSKY | `r31` | This is the TLS register. | + ## Template modifiers @@ -1129,42 +1670,167 @@ This feature tracks `asm!` and `global_asm!` support for the following architect | PowerPC | `reg` | None | `0` | None | | PowerPC | `reg_nonzero` | None | `3` | `b` | | PowerPC | `freg` | None | `0` | None | +| s390x | `reg` | None | `%r0` | None | +| s390x | `freg` | None | `%f0` | None | +| CSKY | `reg` | None | `r0` | None | +| CSKY | `freg` | None | `f0` | None | # Flags covered by `preserves_flags` These flags registers must be restored upon exiting the asm block if the `preserves_flags` option is set: - AVR - The status register `SREG`. +- MSP430 + - The status register `r2`. +- M68k + - The condition code register `ccr`. +- s390x + - The condition code register `cc`. "##, }, Lint { - label: "asm_sym", - description: r##"# `asm_sym` + label: "asm_unwind", + description: r##"# `asm_unwind` -The tracking issue for this feature is: [#72016] +The tracking issue for this feature is: [#93334] -[#72016]: https://github.com/rust-lang/rust/issues/72016 +[#93334]: https://github.com/rust-lang/rust/issues/93334 ------------------------ -This feature adds a `sym <path>` operand type to `asm!` and `global_asm!`. -- `<path>` must refer to a `fn` or `static`. -- A mangled symbol name referring to the item is substituted into the asm template string. -- The substituted string does not include any modifiers (e.g. GOT, PLT, relocations, etc). -- `<path>` is allowed to point to a `#[thread_local]` static, in which case the asm code can combine the symbol with relocations (e.g. `@plt`, `@TPOFF`) to read from thread-local data. +This feature adds a `may_unwind` option to `asm!` which allows an `asm` block to unwind stack and be part of the stack unwinding process. This option is only supported by the LLVM backend right now. "##, }, Lint { - label: "asm_unwind", - description: r##"# `asm_unwind` + label: "assert_matches", + description: r##"# `assert_matches` -The tracking issue for this feature is: [#72016] +The tracking issue for this feature is: [#82775] -[#72016]: https://github.com/rust-lang/rust/issues/72016 +[#82775]: https://github.com/rust-lang/rust/issues/82775 ------------------------ +"##, + }, + Lint { + label: "associated_const_equality", + description: r##"# `associated_const_equality` -This feature adds a `may_unwind` option to `asm!` which allows an `asm` block to unwind stack and be part of the stack unwinding process. This option is only supported by the LLVM backend right now. +The tracking issue for this feature is: [#92827] + +[#92827]: https://github.com/rust-lang/rust/issues/92827 + +------------------------ +"##, + }, + Lint { + label: "associated_type_bounds", + description: r##"# `associated_type_bounds` + +The tracking issue for this feature is: [#52662] + +[#52662]: https://github.com/rust-lang/rust/issues/52662 + +------------------------ +"##, + }, + Lint { + label: "associated_type_defaults", + description: r##"# `associated_type_defaults` + +The tracking issue for this feature is: [#29661] + +[#29661]: https://github.com/rust-lang/rust/issues/29661 + +------------------------ +"##, + }, + Lint { + label: "async_closure", + description: r##"# `async_closure` + +The tracking issue for this feature is: [#62290] + +[#62290]: https://github.com/rust-lang/rust/issues/62290 + +------------------------ +"##, + }, + Lint { + label: "async_fn_in_trait", + description: r##"# `async_fn_in_trait` + +The tracking issue for this feature is: [#91611] + +[#91611]: https://github.com/rust-lang/rust/issues/91611 + +------------------------ +"##, + }, + Lint { + label: "async_fn_track_caller", + description: r##"# `async_fn_track_caller` + +The tracking issue for this feature is: [#110011] + +[#110011]: https://github.com/rust-lang/rust/issues/110011 + +------------------------ +"##, + }, + Lint { + label: "async_iter_from_iter", + description: r##"# `async_iter_from_iter` + +The tracking issue for this feature is: [#81798] + +[#81798]: https://github.com/rust-lang/rust/issues/81798 + +------------------------ +"##, + }, + Lint { + label: "async_iterator", + description: r##"# `async_iterator` + +The tracking issue for this feature is: [#79024] + +[#79024]: https://github.com/rust-lang/rust/issues/79024 + +------------------------ +"##, + }, + Lint { + label: "atomic_bool_fetch_not", + description: r##"# `atomic_bool_fetch_not` + +The tracking issue for this feature is: [#98485] + +[#98485]: https://github.com/rust-lang/rust/issues/98485 + +------------------------ +"##, + }, + Lint { + label: "atomic_from_mut", + description: r##"# `atomic_from_mut` + +The tracking issue for this feature is: [#76314] + +[#76314]: https://github.com/rust-lang/rust/issues/76314 + +------------------------ +"##, + }, + Lint { + label: "atomic_from_ptr", + description: r##"# `atomic_from_ptr` + +The tracking issue for this feature is: [#108652] + +[#108652]: https://github.com/rust-lang/rust/issues/108652 + +------------------------ "##, }, Lint { @@ -1184,8 +1850,8 @@ 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 {} @@ -1278,6 +1944,116 @@ Auto traits cannot have supertraits. This is for soundness reasons, as the inter "##, }, Lint { + label: "avx512_target_feature", + description: r##"# `avx512_target_feature` + +The tracking issue for this feature is: [#44839] + +[#44839]: https://github.com/rust-lang/rust/issues/44839 + +------------------------ +"##, + }, + Lint { + label: "backtrace_frames", + description: r##"# `backtrace_frames` + +The tracking issue for this feature is: [#79676] + +[#79676]: https://github.com/rust-lang/rust/issues/79676 + +------------------------ +"##, + }, + Lint { + label: "bigint_helper_methods", + description: r##"# `bigint_helper_methods` + +The tracking issue for this feature is: [#85532] + +[#85532]: https://github.com/rust-lang/rust/issues/85532 + +------------------------ +"##, + }, + Lint { + label: "binary_heap_as_slice", + description: r##"# `binary_heap_as_slice` + +The tracking issue for this feature is: [#83659] + +[#83659]: https://github.com/rust-lang/rust/issues/83659 + +------------------------ +"##, + }, + Lint { + label: "binary_heap_drain_sorted", + description: r##"# `binary_heap_drain_sorted` + +The tracking issue for this feature is: [#59278] + +[#59278]: https://github.com/rust-lang/rust/issues/59278 + +------------------------ +"##, + }, + Lint { + label: "binary_heap_into_iter_sorted", + description: r##"# `binary_heap_into_iter_sorted` + +The tracking issue for this feature is: [#59278] + +[#59278]: https://github.com/rust-lang/rust/issues/59278 + +------------------------ +"##, + }, + Lint { + label: "bound_as_ref", + description: r##"# `bound_as_ref` + +The tracking issue for this feature is: [#80996] + +[#80996]: https://github.com/rust-lang/rust/issues/80996 + +------------------------ +"##, + }, + Lint { + label: "bound_map", + description: r##"# `bound_map` + +The tracking issue for this feature is: [#86026] + +[#86026]: https://github.com/rust-lang/rust/issues/86026 + +------------------------ +"##, + }, + Lint { + label: "box_into_boxed_slice", + description: r##"# `box_into_boxed_slice` + +The tracking issue for this feature is: [#71582] + +[#71582]: https://github.com/rust-lang/rust/issues/71582 + +------------------------ +"##, + }, + Lint { + label: "box_into_inner", + description: r##"# `box_into_inner` + +The tracking issue for this feature is: [#80437] + +[#80437]: https://github.com/rust-lang/rust/issues/80437 + +------------------------ +"##, + }, + Lint { label: "box_patterns", description: r##"# `box_patterns` @@ -1285,8 +2061,6 @@ The tracking issue for this feature is: [#29641] [#29641]: https://github.com/rust-lang/rust/issues/29641 -See also [`box_syntax`](box-syntax.md) - ------------------------ Box patterns let you match on `Box<T>`s: @@ -1299,10 +2073,10 @@ fn main() { let b = Some(Box::new(5)); match b { Some(box n) if n < 0 => { - println!("Box contains negative number {}", n); + println!("Box contains negative number {n}"); }, Some(box n) if n >= 0 => { - println!("Box contains non-negative number {}", n); + println!("Box contains non-negative number {n}"); }, None => { println!("No box"); @@ -1314,29 +2088,102 @@ fn main() { "##, }, Lint { - label: "box_syntax", - description: r##"# `box_syntax` + label: "bpf_target_feature", + description: r##"# `bpf_target_feature` -The tracking issue for this feature is: [#49733] +The tracking issue for this feature is: [#44839] -[#49733]: https://github.com/rust-lang/rust/issues/49733 +[#44839]: https://github.com/rust-lang/rust/issues/44839 -See also [`box_patterns`](box-patterns.md) +------------------------ +"##, + }, + Lint { + label: "btree_cursors", + description: r##"# `btree_cursors` + +The tracking issue for this feature is: [#107540] + +[#107540]: https://github.com/rust-lang/rust/issues/107540 ------------------------ +"##, + }, + Lint { + label: "btree_extract_if", + description: r##"# `btree_extract_if` -Currently the only stable way to create a `Box` is via the `Box::new` method. -Also it is not possible in stable Rust to destructure a `Box` in a match -pattern. The unstable `box` keyword can be used to create a `Box`. An example -usage would be: +The tracking issue for this feature is: [#70530] -```rust -#![feature(box_syntax)] +[#70530]: https://github.com/rust-lang/rust/issues/70530 -fn main() { - let b = box 5; -} -``` +------------------------ +"##, + }, + Lint { + label: "btreemap_alloc", + description: r##"# `btreemap_alloc` + +The tracking issue for this feature is: [#32838] + +[#32838]: https://github.com/rust-lang/rust/issues/32838 + +------------------------ +"##, + }, + Lint { + label: "buf_read_has_data_left", + description: r##"# `buf_read_has_data_left` + +The tracking issue for this feature is: [#86423] + +[#86423]: https://github.com/rust-lang/rust/issues/86423 + +------------------------ +"##, + }, + Lint { + label: "builtin_syntax", + description: r##"# `builtin_syntax` + +The tracking issue for this feature is: [#110680] + +[#110680]: https://github.com/rust-lang/rust/issues/110680 + +------------------------ +"##, + }, + Lint { + label: "byte_slice_trim_ascii", + description: r##"# `byte_slice_trim_ascii` + +The tracking issue for this feature is: [#94035] + +[#94035]: https://github.com/rust-lang/rust/issues/94035 + +------------------------ +"##, + }, + Lint { + label: "c_size_t", + description: r##"# `c_size_t` + +The tracking issue for this feature is: [#88345] + +[#88345]: https://github.com/rust-lang/rust/issues/88345 + +------------------------ +"##, + }, + Lint { + label: "c_str_literals", + description: r##"# `c_str_literals` + +The tracking issue for this feature is: [#105723] + +[#105723]: https://github.com/rust-lang/rust/issues/105723 + +------------------------ "##, }, Lint { @@ -1349,9 +2196,20 @@ The tracking issue for this feature is: [#74990] ------------------------ -Introduces four new ABI strings: "C-unwind", "stdcall-unwind", -"thiscall-unwind", and "system-unwind". These enable unwinding from other -languages (such as C++) into Rust frames and from Rust into other languages. +Introduces new ABI strings: +- "C-unwind" +- "cdecl-unwind" +- "stdcall-unwind" +- "fastcall-unwind" +- "vectorcall-unwind" +- "thiscall-unwind" +- "aapcs-unwind" +- "win64-unwind" +- "sysv64-unwind" +- "system-unwind" + +These enable unwinding from other languages (such as C++) into Rust frames and +from Rust into other languages. See [RFC 2945] for more information. @@ -1369,7 +2227,7 @@ The tracking issue for this feature is: [#44930] ------------------------ The `c_variadic` language feature enables C-variadic functions to be -defined in Rust. The may be called both from within Rust and via FFI. +defined in Rust. They may be called both from within Rust and via FFI. ## Examples @@ -1426,45 +2284,91 @@ This feature is internal to the Rust compiler and is not intended for general us "##, }, Lint { - label: "cfg_panic", - description: r##"# `cfg_panic` + label: "can_vector", + description: r##"# `can_vector` -The tracking issue for this feature is: [#77443] +The tracking issue for this feature is: [#69941] -[#77443]: https://github.com/rust-lang/rust/issues/77443 +[#69941]: https://github.com/rust-lang/rust/issues/69941 ------------------------ +"##, + }, + Lint { + label: "cell_leak", + description: r##"# `cell_leak` -The `cfg_panic` feature makes it possible to execute different code -depending on the panic strategy. +The tracking issue for this feature is: [#69099] -Possible values at the moment are `"unwind"` or `"abort"`, although -it is possible that new panic strategies may be added to Rust in the -future. +[#69099]: https://github.com/rust-lang/rust/issues/69099 -## Examples +------------------------ +"##, + }, + Lint { + label: "cell_update", + description: r##"# `cell_update` -```rust -#![feature(cfg_panic)] +The tracking issue for this feature is: [#50186] -#[cfg(panic = "unwind")] -fn a() { - // ... -} +[#50186]: https://github.com/rust-lang/rust/issues/50186 -#[cfg(not(panic = "unwind"))] -fn a() { - // ... -} +------------------------ +"##, + }, + Lint { + label: "cfg_accessible", + description: r##"# `cfg_accessible` -fn b() { - if cfg!(panic = "abort") { - // ... - } else { - // ... - } -} -``` +The tracking issue for this feature is: [#64797] + +[#64797]: https://github.com/rust-lang/rust/issues/64797 + +------------------------ +"##, + }, + Lint { + label: "cfg_eval", + description: r##"# `cfg_eval` + +The tracking issue for this feature is: [#82679] + +[#82679]: https://github.com/rust-lang/rust/issues/82679 + +------------------------ +"##, + }, + Lint { + label: "cfg_match", + description: r##"# `cfg_match` + +The tracking issue for this feature is: [#115585] + +[#115585]: https://github.com/rust-lang/rust/issues/115585 + +------------------------ +"##, + }, + Lint { + label: "cfg_overflow_checks", + description: r##"# `cfg_overflow_checks` + +The tracking issue for this feature is: [#111466] + +[#111466]: https://github.com/rust-lang/rust/issues/111466 + +------------------------ +"##, + }, + Lint { + label: "cfg_relocation_model", + description: r##"# `cfg_relocation_model` + +The tracking issue for this feature is: [#114929] + +[#114929]: https://github.com/rust-lang/rust/issues/114929 + +------------------------ "##, }, Lint { @@ -1506,6 +2410,61 @@ fn b() { "##, }, Lint { + label: "cfg_target_abi", + description: r##"# `cfg_target_abi` + +The tracking issue for this feature is: [#80970] + +[#80970]: https://github.com/rust-lang/rust/issues/80970 + +------------------------ +"##, + }, + Lint { + label: "cfg_target_compact", + description: r##"# `cfg_target_compact` + +The tracking issue for this feature is: [#96901] + +[#96901]: https://github.com/rust-lang/rust/issues/96901 + +------------------------ +"##, + }, + Lint { + label: "cfg_target_has_atomic", + description: r##"# `cfg_target_has_atomic` + +The tracking issue for this feature is: [#94039] + +[#94039]: https://github.com/rust-lang/rust/issues/94039 + +------------------------ +"##, + }, + Lint { + label: "cfg_target_has_atomic_equal_alignment", + description: r##"# `cfg_target_has_atomic_equal_alignment` + +The tracking issue for this feature is: [#93822] + +[#93822]: https://github.com/rust-lang/rust/issues/93822 + +------------------------ +"##, + }, + Lint { + label: "cfg_target_thread_local", + description: r##"# `cfg_target_thread_local` + +The tracking issue for this feature is: [#29594] + +[#29594]: https://github.com/rust-lang/rust/issues/29594 + +------------------------ +"##, + }, + Lint { label: "cfg_version", description: r##"# `cfg_version` @@ -1545,10 +2504,72 @@ fn b() { "##, }, Lint { - label: "char_error_internals", - description: r##"# `char_error_internals` + label: "cfi_encoding", + description: r##"# `cfi_encoding` -This feature is internal to the Rust compiler and is not intended for general use. +The tracking issue for this feature is: [#89653] + +[#89653]: https://github.com/rust-lang/rust/issues/89653 + +------------------------ + +The `cfi_encoding` feature allows the user to define a CFI encoding for a type. +It allows the user to use a different names for types that otherwise would be +required to have the same name as used in externally defined C functions. + +## Examples + +```rust +#![feature(cfi_encoding, extern_types)] + +#[cfi_encoding = "3Foo"] +pub struct Type1(i32); + +extern { + #[cfi_encoding = "3Bar"] + type Type2; +} +``` +"##, + }, + Lint { + label: "char_indices_offset", + description: r##"# `char_indices_offset` + +The tracking issue for this feature is: [#83871] + +[#83871]: https://github.com/rust-lang/rust/issues/83871 + +------------------------ +"##, + }, + Lint { + label: "char_internals", + description: r##"# `char_internals` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "char_min", + description: r##"# `char_min` + +The tracking issue for this feature is: [#114298] + +[#114298]: https://github.com/rust-lang/rust/issues/114298 + +------------------------ +"##, + }, + Lint { + label: "closure_lifetime_binder", + description: r##"# `closure_lifetime_binder` + +The tracking issue for this feature is: [#97362] + +[#97362]: https://github.com/rust-lang/rust/issues/97362 ------------------------ "##, @@ -1570,6 +2591,17 @@ available through `std::panic::Location::caller()`, just like using "##, }, Lint { + label: "cmp_minmax", + description: r##"# `cmp_minmax` + +The tracking issue for this feature is: [#115939] + +[#115939]: https://github.com/rust-lang/rust/issues/115939 + +------------------------ +"##, + }, + Lint { label: "cmse_nonsecure_entry", description: r##"# `cmse_nonsecure_entry` @@ -1655,6 +2687,28 @@ $ arm-none-eabi-objdump -D function.o "##, }, Lint { + label: "coerce_unsized", + description: r##"# `coerce_unsized` + +The tracking issue for this feature is: [#18598] + +[#18598]: https://github.com/rust-lang/rust/issues/18598 + +------------------------ +"##, + }, + Lint { + label: "collapse_debuginfo", + description: r##"# `collapse_debuginfo` + +The tracking issue for this feature is: [#100758] + +[#100758]: https://github.com/rust-lang/rust/issues/100758 + +------------------------ +"##, + }, + Lint { label: "compiler_builtins", description: r##"# `compiler_builtins` @@ -1664,6 +2718,17 @@ This feature is internal to the Rust compiler and is not intended for general us "##, }, Lint { + label: "concat_bytes", + description: r##"# `concat_bytes` + +The tracking issue for this feature is: [#87555] + +[#87555]: https://github.com/rust-lang/rust/issues/87555 + +------------------------ +"##, + }, + Lint { label: "concat_idents", description: r##"# `concat_idents` @@ -1690,14 +2755,1027 @@ fn main() { "##, }, Lint { - label: "const_eval_limit", - description: r##"# `const_eval_limit` + label: "const_align_of_val", + description: r##"# `const_align_of_val` + +The tracking issue for this feature is: [#46571] + +[#46571]: https://github.com/rust-lang/rust/issues/46571 + +------------------------ +"##, + }, + Lint { + label: "const_align_of_val_raw", + description: r##"# `const_align_of_val_raw` + +The tracking issue for this feature is: [#46571] + +[#46571]: https://github.com/rust-lang/rust/issues/46571 + +------------------------ +"##, + }, + Lint { + label: "const_align_offset", + description: r##"# `const_align_offset` + +The tracking issue for this feature is: [#90962] + +[#90962]: https://github.com/rust-lang/rust/issues/90962 + +------------------------ +"##, + }, + Lint { + label: "const_alloc_error", + description: r##"# `const_alloc_error` + +The tracking issue for this feature is: [#92523] + +[#92523]: https://github.com/rust-lang/rust/issues/92523 + +------------------------ +"##, + }, + Lint { + label: "const_alloc_layout", + description: r##"# `const_alloc_layout` + +The tracking issue for this feature is: [#67521] + +[#67521]: https://github.com/rust-lang/rust/issues/67521 + +------------------------ +"##, + }, + Lint { + label: "const_arguments_as_str", + description: r##"# `const_arguments_as_str` + +The tracking issue for this feature is: [#103900] + +[#103900]: https://github.com/rust-lang/rust/issues/103900 + +------------------------ +"##, + }, + Lint { + label: "const_array_from_ref", + description: r##"# `const_array_from_ref` + +The tracking issue for this feature is: [#90206] + +[#90206]: https://github.com/rust-lang/rust/issues/90206 + +------------------------ +"##, + }, + Lint { + label: "const_array_into_iter_constructors", + description: r##"# `const_array_into_iter_constructors` + +The tracking issue for this feature is: [#91583] + +[#91583]: https://github.com/rust-lang/rust/issues/91583 + +------------------------ +"##, + }, + Lint { + label: "const_assert_type2", + description: r##"# `const_assert_type2` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "const_assume", + description: r##"# `const_assume` + +The tracking issue for this feature is: [#76972] + +[#76972]: https://github.com/rust-lang/rust/issues/76972 + +------------------------ +"##, + }, + Lint { + label: "const_async_blocks", + description: r##"# `const_async_blocks` + +The tracking issue for this feature is: [#85368] + +[#85368]: https://github.com/rust-lang/rust/issues/85368 + +------------------------ +"##, + }, + Lint { + label: "const_bigint_helper_methods", + description: r##"# `const_bigint_helper_methods` + +The tracking issue for this feature is: [#85532] + +[#85532]: https://github.com/rust-lang/rust/issues/85532 + +------------------------ +"##, + }, + Lint { + label: "const_black_box", + description: r##"# `const_black_box` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "const_box", + description: r##"# `const_box` + +The tracking issue for this feature is: [#92521] + +[#92521]: https://github.com/rust-lang/rust/issues/92521 + +------------------------ +"##, + }, + Lint { + label: "const_btree_len", + description: r##"# `const_btree_len` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "const_caller_location", + description: r##"# `const_caller_location` + +The tracking issue for this feature is: [#76156] + +[#76156]: https://github.com/rust-lang/rust/issues/76156 + +------------------------ +"##, + }, + Lint { + label: "const_cell_into_inner", + description: r##"# `const_cell_into_inner` + +The tracking issue for this feature is: [#78729] + +[#78729]: https://github.com/rust-lang/rust/issues/78729 + +------------------------ +"##, + }, + Lint { + label: "const_char_from_u32_unchecked", + description: r##"# `const_char_from_u32_unchecked` + +The tracking issue for this feature is: [#89259] + +[#89259]: https://github.com/rust-lang/rust/issues/89259 + +------------------------ +"##, + }, + Lint { + label: "const_closures", + description: r##"# `const_closures` + +The tracking issue for this feature is: [#106003] + +[#106003]: https://github.com/rust-lang/rust/issues/106003 + +------------------------ +"##, + }, + Lint { + label: "const_collections_with_hasher", + description: r##"# `const_collections_with_hasher` + +The tracking issue for this feature is: [#102575] + +[#102575]: https://github.com/rust-lang/rust/issues/102575 + +------------------------ +"##, + }, + Lint { + label: "const_cow_is_borrowed", + description: r##"# `const_cow_is_borrowed` + +The tracking issue for this feature is: [#65143] + +[#65143]: https://github.com/rust-lang/rust/issues/65143 + +------------------------ +"##, + }, + Lint { + label: "const_cstr_from_ptr", + description: r##"# `const_cstr_from_ptr` + +The tracking issue for this feature is: [#113219] + +[#113219]: https://github.com/rust-lang/rust/issues/113219 + +------------------------ +"##, + }, + Lint { + label: "const_discriminant", + description: r##"# `const_discriminant` + +The tracking issue for this feature is: [#69821] + +[#69821]: https://github.com/rust-lang/rust/issues/69821 + +------------------------ +"##, + }, + Lint { + label: "const_eval_select", + description: r##"# `const_eval_select` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "const_exact_div", + description: r##"# `const_exact_div` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "const_extern_fn", + description: r##"# `const_extern_fn` + +The tracking issue for this feature is: [#64926] + +[#64926]: https://github.com/rust-lang/rust/issues/64926 + +------------------------ +"##, + }, + Lint { + label: "const_float_bits_conv", + description: r##"# `const_float_bits_conv` + +The tracking issue for this feature is: [#72447] + +[#72447]: https://github.com/rust-lang/rust/issues/72447 + +------------------------ +"##, + }, + Lint { + label: "const_float_classify", + description: r##"# `const_float_classify` + +The tracking issue for this feature is: [#72505] + +[#72505]: https://github.com/rust-lang/rust/issues/72505 + +------------------------ +"##, + }, + Lint { + label: "const_fmt_arguments_new", + description: r##"# `const_fmt_arguments_new` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "const_fn_floating_point_arithmetic", + description: r##"# `const_fn_floating_point_arithmetic` + +The tracking issue for this feature is: [#57241] + +[#57241]: https://github.com/rust-lang/rust/issues/57241 + +------------------------ +"##, + }, + Lint { + label: "const_for", + description: r##"# `const_for` + +The tracking issue for this feature is: [#87575] + +[#87575]: https://github.com/rust-lang/rust/issues/87575 + +------------------------ +"##, + }, + Lint { + label: "const_format_args", + description: r##"# `const_format_args` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "const_hash", + description: r##"# `const_hash` + +The tracking issue for this feature is: [#104061] + +[#104061]: https://github.com/rust-lang/rust/issues/104061 + +------------------------ +"##, + }, + Lint { + label: "const_heap", + description: r##"# `const_heap` + +The tracking issue for this feature is: [#79597] + +[#79597]: https://github.com/rust-lang/rust/issues/79597 + +------------------------ +"##, + }, + Lint { + label: "const_index_range_slice_index", + description: r##"# `const_index_range_slice_index` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "const_inherent_unchecked_arith", + description: r##"# `const_inherent_unchecked_arith` + +The tracking issue for this feature is: [#85122] + +[#85122]: https://github.com/rust-lang/rust/issues/85122 + +------------------------ +"##, + }, + Lint { + label: "const_int_unchecked_arith", + description: r##"# `const_int_unchecked_arith` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "const_intoiterator_identity", + description: r##"# `const_intoiterator_identity` + +The tracking issue for this feature is: [#90603] + +[#90603]: https://github.com/rust-lang/rust/issues/90603 + +------------------------ +"##, + }, + Lint { + label: "const_intrinsic_compare_bytes", + description: r##"# `const_intrinsic_compare_bytes` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "const_intrinsic_forget", + description: r##"# `const_intrinsic_forget` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "const_intrinsic_raw_eq", + description: r##"# `const_intrinsic_raw_eq` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "const_io_structs", + description: r##"# `const_io_structs` + +The tracking issue for this feature is: [#78812] + +[#78812]: https://github.com/rust-lang/rust/issues/78812 + +------------------------ +"##, + }, + Lint { + label: "const_ip", + description: r##"# `const_ip` + +The tracking issue for this feature is: [#76205] + +[#76205]: https://github.com/rust-lang/rust/issues/76205 + +------------------------ +"##, + }, + Lint { + label: "const_ipv4", + description: r##"# `const_ipv4` + +The tracking issue for this feature is: [#76205] + +[#76205]: https://github.com/rust-lang/rust/issues/76205 + +------------------------ +"##, + }, + Lint { + label: "const_ipv6", + description: r##"# `const_ipv6` + +The tracking issue for this feature is: [#76205] + +[#76205]: https://github.com/rust-lang/rust/issues/76205 + +------------------------ +"##, + }, + Lint { + label: "const_likely", + description: r##"# `const_likely` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "const_location_fields", + description: r##"# `const_location_fields` + +The tracking issue for this feature is: [#102911] + +[#102911]: https://github.com/rust-lang/rust/issues/102911 + +------------------------ +"##, + }, + Lint { + label: "const_maybe_uninit_array_assume_init", + description: r##"# `const_maybe_uninit_array_assume_init` + +The tracking issue for this feature is: [#96097] + +[#96097]: https://github.com/rust-lang/rust/issues/96097 + +------------------------ +"##, + }, + Lint { + label: "const_maybe_uninit_as_mut_ptr", + description: r##"# `const_maybe_uninit_as_mut_ptr` + +The tracking issue for this feature is: [#75251] + +[#75251]: https://github.com/rust-lang/rust/issues/75251 + +------------------------ +"##, + }, + Lint { + label: "const_maybe_uninit_assume_init", + description: r##"# `const_maybe_uninit_assume_init` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "const_maybe_uninit_assume_init_read", + description: r##"# `const_maybe_uninit_assume_init_read` + +The tracking issue for this feature is: [#63567] + +[#63567]: https://github.com/rust-lang/rust/issues/63567 + +------------------------ +"##, + }, + Lint { + label: "const_maybe_uninit_uninit_array", + description: r##"# `const_maybe_uninit_uninit_array` + +The tracking issue for this feature is: [#96097] + +[#96097]: https://github.com/rust-lang/rust/issues/96097 + +------------------------ +"##, + }, + Lint { + label: "const_maybe_uninit_write", + description: r##"# `const_maybe_uninit_write` + +The tracking issue for this feature is: [#63567] + +[#63567]: https://github.com/rust-lang/rust/issues/63567 + +------------------------ +"##, + }, + Lint { + label: "const_maybe_uninit_zeroed", + description: r##"# `const_maybe_uninit_zeroed` + +The tracking issue for this feature is: [#91850] + +[#91850]: https://github.com/rust-lang/rust/issues/91850 + +------------------------ +"##, + }, + Lint { + label: "const_mut_refs", + description: r##"# `const_mut_refs` -The tracking issue for this feature is: [#67217] +The tracking issue for this feature is: [#57349] -[#67217]: https://github.com/rust-lang/rust/issues/67217 +[#57349]: https://github.com/rust-lang/rust/issues/57349 -The `const_eval_limit` allows someone to limit the evaluation steps the CTFE undertakes to evaluate a `const fn`. +------------------------ +"##, + }, + Lint { + label: "const_nonnull_new", + description: r##"# `const_nonnull_new` + +The tracking issue for this feature is: [#93235] + +[#93235]: https://github.com/rust-lang/rust/issues/93235 + +------------------------ +"##, + }, + Lint { + label: "const_num_midpoint", + description: r##"# `const_num_midpoint` + +The tracking issue for this feature is: [#110840] + +[#110840]: https://github.com/rust-lang/rust/issues/110840 + +------------------------ +"##, + }, + Lint { + label: "const_option", + description: r##"# `const_option` + +The tracking issue for this feature is: [#67441] + +[#67441]: https://github.com/rust-lang/rust/issues/67441 + +------------------------ +"##, + }, + Lint { + label: "const_option_ext", + description: r##"# `const_option_ext` + +The tracking issue for this feature is: [#91930] + +[#91930]: https://github.com/rust-lang/rust/issues/91930 + +------------------------ +"##, + }, + Lint { + label: "const_pin", + description: r##"# `const_pin` + +The tracking issue for this feature is: [#76654] + +[#76654]: https://github.com/rust-lang/rust/issues/76654 + +------------------------ +"##, + }, + Lint { + label: "const_pointer_byte_offsets", + description: r##"# `const_pointer_byte_offsets` + +The tracking issue for this feature is: [#96283] + +[#96283]: https://github.com/rust-lang/rust/issues/96283 + +------------------------ +"##, + }, + Lint { + label: "const_pointer_is_aligned", + description: r##"# `const_pointer_is_aligned` + +The tracking issue for this feature is: [#104203] + +[#104203]: https://github.com/rust-lang/rust/issues/104203 + +------------------------ +"##, + }, + Lint { + label: "const_precise_live_drops", + description: r##"# `const_precise_live_drops` + +The tracking issue for this feature is: [#73255] + +[#73255]: https://github.com/rust-lang/rust/issues/73255 + +------------------------ +"##, + }, + Lint { + label: "const_pref_align_of", + description: r##"# `const_pref_align_of` + +The tracking issue for this feature is: [#91971] + +[#91971]: https://github.com/rust-lang/rust/issues/91971 + +------------------------ +"##, + }, + Lint { + label: "const_ptr_as_ref", + description: r##"# `const_ptr_as_ref` + +The tracking issue for this feature is: [#91822] + +[#91822]: https://github.com/rust-lang/rust/issues/91822 + +------------------------ +"##, + }, + Lint { + label: "const_ptr_is_null", + description: r##"# `const_ptr_is_null` + +The tracking issue for this feature is: [#74939] + +[#74939]: https://github.com/rust-lang/rust/issues/74939 + +------------------------ +"##, + }, + Lint { + label: "const_ptr_sub_ptr", + description: r##"# `const_ptr_sub_ptr` + +The tracking issue for this feature is: [#95892] + +[#95892]: https://github.com/rust-lang/rust/issues/95892 + +------------------------ +"##, + }, + Lint { + label: "const_ptr_write", + description: r##"# `const_ptr_write` + +The tracking issue for this feature is: [#86302] + +[#86302]: https://github.com/rust-lang/rust/issues/86302 + +------------------------ +"##, + }, + Lint { + label: "const_range_bounds", + description: r##"# `const_range_bounds` + +The tracking issue for this feature is: [#108082] + +[#108082]: https://github.com/rust-lang/rust/issues/108082 + +------------------------ +"##, + }, + Lint { + label: "const_raw_ptr_comparison", + description: r##"# `const_raw_ptr_comparison` + +The tracking issue for this feature is: [#53020] + +[#53020]: https://github.com/rust-lang/rust/issues/53020 + +------------------------ +"##, + }, + Lint { + label: "const_refs_to_cell", + description: r##"# `const_refs_to_cell` + +The tracking issue for this feature is: [#80384] + +[#80384]: https://github.com/rust-lang/rust/issues/80384 + +------------------------ +"##, + }, + Lint { + label: "const_replace", + description: r##"# `const_replace` + +The tracking issue for this feature is: [#83164] + +[#83164]: https://github.com/rust-lang/rust/issues/83164 + +------------------------ +"##, + }, + Lint { + label: "const_result", + description: r##"# `const_result` + +The tracking issue for this feature is: [#82814] + +[#82814]: https://github.com/rust-lang/rust/issues/82814 + +------------------------ +"##, + }, + Lint { + label: "const_size_of_val", + description: r##"# `const_size_of_val` + +The tracking issue for this feature is: [#46571] + +[#46571]: https://github.com/rust-lang/rust/issues/46571 + +------------------------ +"##, + }, + Lint { + label: "const_size_of_val_raw", + description: r##"# `const_size_of_val_raw` + +The tracking issue for this feature is: [#46571] + +[#46571]: https://github.com/rust-lang/rust/issues/46571 + +------------------------ +"##, + }, + Lint { + label: "const_slice_first_last", + description: r##"# `const_slice_first_last` + +The tracking issue for this feature is: [#83570] + +[#83570]: https://github.com/rust-lang/rust/issues/83570 + +------------------------ +"##, + }, + Lint { + label: "const_slice_from_mut_ptr_range", + description: r##"# `const_slice_from_mut_ptr_range` + +The tracking issue for this feature is: [#89792] + +[#89792]: https://github.com/rust-lang/rust/issues/89792 + +------------------------ +"##, + }, + Lint { + label: "const_slice_from_ptr_range", + description: r##"# `const_slice_from_ptr_range` + +The tracking issue for this feature is: [#89792] + +[#89792]: https://github.com/rust-lang/rust/issues/89792 + +------------------------ +"##, + }, + Lint { + label: "const_slice_from_raw_parts_mut", + description: r##"# `const_slice_from_raw_parts_mut` + +The tracking issue for this feature is: [#67456] + +[#67456]: https://github.com/rust-lang/rust/issues/67456 + +------------------------ +"##, + }, + Lint { + label: "const_slice_from_ref", + description: r##"# `const_slice_from_ref` + +The tracking issue for this feature is: [#90206] + +[#90206]: https://github.com/rust-lang/rust/issues/90206 + +------------------------ +"##, + }, + Lint { + label: "const_slice_index", + description: r##"# `const_slice_index` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "const_slice_ptr_len", + description: r##"# `const_slice_ptr_len` + +The tracking issue for this feature is: [#71146] + +[#71146]: https://github.com/rust-lang/rust/issues/71146 + +------------------------ +"##, + }, + Lint { + label: "const_slice_split_at_mut", + description: r##"# `const_slice_split_at_mut` + +The tracking issue for this feature is: [#101804] + +[#101804]: https://github.com/rust-lang/rust/issues/101804 + +------------------------ +"##, + }, + Lint { + label: "const_str_from_utf8", + description: r##"# `const_str_from_utf8` + +The tracking issue for this feature is: [#91006] + +[#91006]: https://github.com/rust-lang/rust/issues/91006 + +------------------------ +"##, + }, + Lint { + label: "const_str_from_utf8_unchecked_mut", + description: r##"# `const_str_from_utf8_unchecked_mut` + +The tracking issue for this feature is: [#91005] + +[#91005]: https://github.com/rust-lang/rust/issues/91005 + +------------------------ +"##, + }, + Lint { + label: "const_swap", + description: r##"# `const_swap` + +The tracking issue for this feature is: [#83163] + +[#83163]: https://github.com/rust-lang/rust/issues/83163 + +------------------------ +"##, + }, + Lint { + label: "const_trait_impl", + description: r##"# `const_trait_impl` + +The tracking issue for this feature is: [#67792] + +[#67792]: https://github.com/rust-lang/rust/issues/67792 + +------------------------ +"##, + }, + Lint { + label: "const_try", + description: r##"# `const_try` + +The tracking issue for this feature is: [#74935] + +[#74935]: https://github.com/rust-lang/rust/issues/74935 + +------------------------ +"##, + }, + Lint { + label: "const_type_id", + description: r##"# `const_type_id` + +The tracking issue for this feature is: [#77125] + +[#77125]: https://github.com/rust-lang/rust/issues/77125 + +------------------------ +"##, + }, + Lint { + label: "const_type_name", + description: r##"# `const_type_name` + +The tracking issue for this feature is: [#63084] + +[#63084]: https://github.com/rust-lang/rust/issues/63084 + +------------------------ +"##, + }, + Lint { + label: "const_unicode_case_lookup", + description: r##"# `const_unicode_case_lookup` + +The tracking issue for this feature is: [#101400] + +[#101400]: https://github.com/rust-lang/rust/issues/101400 + +------------------------ +"##, + }, + Lint { + label: "const_unsafecell_get_mut", + description: r##"# `const_unsafecell_get_mut` + +The tracking issue for this feature is: [#88836] + +[#88836]: https://github.com/rust-lang/rust/issues/88836 + +------------------------ +"##, + }, + Lint { + label: "const_waker", + description: r##"# `const_waker` + +The tracking issue for this feature is: [#102012] + +[#102012]: https://github.com/rust-lang/rust/issues/102012 + +------------------------ +"##, + }, + Lint { + label: "container_error_extra", + description: r##"# `container_error_extra` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "control_flow_enum", + description: r##"# `control_flow_enum` + +The tracking issue for this feature is: [#75744] + +[#75744]: https://github.com/rust-lang/rust/issues/75744 + +------------------------ +"##, + }, + Lint { + label: "convert_float_to_int", + description: r##"# `convert_float_to_int` + +The tracking issue for this feature is: [#67057] + +[#67057]: https://github.com/rust-lang/rust/issues/67057 + +------------------------ "##, }, Lint { @@ -1737,30 +3815,115 @@ This feature is internal to the Rust compiler and is not intended for general us "##, }, Lint { - label: "crate_visibility_modifier", - description: r##"# `crate_visibility_modifier` + label: "coverage_attribute", + description: r##"# `coverage_attribute` -The tracking issue for this feature is: [#53120] +The tracking issue for this feature is: [#84605] -[#53120]: https://github.com/rust-lang/rust/issues/53120 +[#84605]: https://github.com/rust-lang/rust/issues/84605 ------ +--- -The `crate_visibility_modifier` feature allows the `crate` keyword to be used -as a visibility modifier synonymous to `pub(crate)`, indicating that a type -(function, _&c._) is to be visible to the entire enclosing crate, but not to -other crates. +The `coverage` attribute can be used to selectively disable coverage +instrumentation in an annotated function. This might be useful to: + +- Avoid instrumentation overhead in a performance critical function +- Avoid generating coverage for a function that is not meant to be executed, + but still target 100% coverage for the rest of the program. + +## Example ```rust -#![feature(crate_visibility_modifier)] +#![feature(coverage_attribute)] -crate struct Foo { - bar: usize, +// `foo()` will get coverage instrumentation (by default) +fn foo() { + // ... +} + +#[coverage(off)] +fn bar() { + // ... } ``` "##, }, Lint { + label: "cow_is_borrowed", + description: r##"# `cow_is_borrowed` + +The tracking issue for this feature is: [#65143] + +[#65143]: https://github.com/rust-lang/rust/issues/65143 + +------------------------ +"##, + }, + Lint { + label: "csky_target_feature", + description: r##"# `csky_target_feature` + +The tracking issue for this feature is: [#44839] + +[#44839]: https://github.com/rust-lang/rust/issues/44839 + +------------------------ +"##, + }, + Lint { + label: "cstr_count_bytes", + description: r##"# `cstr_count_bytes` + +The tracking issue for this feature is: [#114441] + +[#114441]: https://github.com/rust-lang/rust/issues/114441 + +------------------------ +"##, + }, + Lint { + label: "cursor_remaining", + description: r##"# `cursor_remaining` + +The tracking issue for this feature is: [#86369] + +[#86369]: https://github.com/rust-lang/rust/issues/86369 + +------------------------ +"##, + }, + Lint { + label: "custom_code_classes_in_docs", + description: r##"# `custom_code_classes_in_docs` + +The tracking issue for this feature is: [#79483] + +[#79483]: https://github.com/rust-lang/rust/issues/79483 + +------------------------ +"##, + }, + Lint { + label: "custom_inner_attributes", + description: r##"# `custom_inner_attributes` + +The tracking issue for this feature is: [#54726] + +[#54726]: https://github.com/rust-lang/rust/issues/54726 + +------------------------ +"##, + }, + Lint { + label: "custom_mir", + description: r##"# `custom_mir` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { label: "custom_test_frameworks", description: r##"# `custom_test_frameworks` @@ -1797,6 +3960,17 @@ const WILL_FAIL: i32 = 4; "##, }, Lint { + label: "deadline_api", + description: r##"# `deadline_api` + +The tracking issue for this feature is: [#46316] + +[#46316]: https://github.com/rust-lang/rust/issues/46316 + +------------------------ +"##, + }, + Lint { label: "dec2flt", description: r##"# `dec2flt` @@ -1806,54 +3980,47 @@ This feature is internal to the Rust compiler and is not intended for general us "##, }, Lint { - label: "default_free_fn", - description: r##"# `default_free_fn` + label: "decl_macro", + description: r##"# `decl_macro` -The tracking issue for this feature is: [#73014] +The tracking issue for this feature is: [#39412] -[#73014]: https://github.com/rust-lang/rust/issues/73014 +[#39412]: https://github.com/rust-lang/rust/issues/39412 ------------------------ +"##, + }, + Lint { + label: "default_type_parameter_fallback", + description: r##"# `default_type_parameter_fallback` -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. +The tracking issue for this feature is: [#27336] -[`Default::default()`]: https://doc.rust-lang.org/nightly/std/default/trait.Default.html#tymethod.default +[#27336]: https://github.com/rust-lang/rust/issues/27336 -Here is an example: +------------------------ +"##, + }, + Lint { + label: "deprecated_safe", + description: r##"# `deprecated_safe` -```rust -#![feature(default_free_fn)] -use std::default::default; +The tracking issue for this feature is: [#94978] -#[derive(Default)] -struct AppConfig { - foo: FooConfig, - bar: BarConfig, -} +[#94978]: https://github.com/rust-lang/rust/issues/94978 -#[derive(Default)] -struct FooConfig { - foo: i32, -} +------------------------ +"##, + }, + Lint { + label: "deprecated_suggestion", + description: r##"# `deprecated_suggestion` -#[derive(Default)] -struct BarConfig { - bar: f32, - baz: u8, -} +The tracking issue for this feature is: [#94785] -fn main() { - let options = AppConfig { - foo: default(), - bar: BarConfig { - bar: 10.1, - ..default() - }, - }; -} -``` +[#94785]: https://github.com/rust-lang/rust/issues/94785 + +------------------------ "##, }, Lint { @@ -1866,6 +4033,15 @@ This feature is internal to the Rust compiler and is not intended for general us "##, }, Lint { + label: "derive_const", + description: r##"# `derive_const` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { label: "derive_eq", description: r##"# `derive_eq` @@ -1875,6 +4051,79 @@ This feature is internal to the Rust compiler and is not intended for general us "##, }, Lint { + label: "diagnostic_namespace", + description: r##"# `diagnostic_namespace` + +The tracking issue for this feature is: [#111996] + +[#111996]: https://github.com/rust-lang/rust/issues/111996 + +------------------------ +"##, + }, + Lint { + label: "dir_entry_ext2", + description: r##"# `dir_entry_ext2` + +The tracking issue for this feature is: [#85573] + +[#85573]: https://github.com/rust-lang/rust/issues/85573 + +------------------------ +"##, + }, + Lint { + label: "discriminant_kind", + description: r##"# `discriminant_kind` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "dispatch_from_dyn", + description: r##"# `dispatch_from_dyn` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "div_duration", + description: r##"# `div_duration` + +The tracking issue for this feature is: [#63139] + +[#63139]: https://github.com/rust-lang/rust/issues/63139 + +------------------------ +"##, + }, + Lint { + label: "do_not_recommend", + description: r##"# `do_not_recommend` + +The tracking issue for this feature is: [#51992] + +[#51992]: https://github.com/rust-lang/rust/issues/51992 + +------------------------ +"##, + }, + Lint { + label: "doc_auto_cfg", + description: r##"# `doc_auto_cfg` + +The tracking issue for this feature is: [#43781] + +[#43781]: https://github.com/rust-lang/rust/issues/43781 + +------------------------ +"##, + }, + Lint { label: "doc_cfg", description: r##"# `doc_cfg` @@ -1885,7 +4134,7 @@ The tracking issue for this feature is: [#43781] The `doc_cfg` feature allows an API be documented as only available in some specific platforms. This attribute has two effects: -1. In the annotated item's documentation, there will be a message saying "This is supported on +1. In the annotated item's documentation, there will be a message saying "Available on (platform) only". 2. The item's doc-tests will only run on the specific platform. @@ -1925,6 +4174,17 @@ pub struct Icon { "##, }, Lint { + label: "doc_cfg_hide", + description: r##"# `doc_cfg_hide` + +The tracking issue for this feature is: [#43781] + +[#43781]: https://github.com/rust-lang/rust/issues/43781 + +------------------------ +"##, + }, + Lint { label: "doc_masked", description: r##"# `doc_masked` @@ -1990,6 +4250,180 @@ See also its documentation in [the rustdoc book][rustdoc-book-notable_trait]. "##, }, Lint { + label: "downcast_unchecked", + description: r##"# `downcast_unchecked` + +The tracking issue for this feature is: [#90850] + +[#90850]: https://github.com/rust-lang/rust/issues/90850 + +------------------------ +"##, + }, + Lint { + label: "drain_keep_rest", + description: r##"# `drain_keep_rest` + +The tracking issue for this feature is: [#101122] + +[#101122]: https://github.com/rust-lang/rust/issues/101122 + +------------------------ +"##, + }, + Lint { + label: "dropck_eyepatch", + description: r##"# `dropck_eyepatch` + +The tracking issue for this feature is: [#34761] + +[#34761]: https://github.com/rust-lang/rust/issues/34761 + +------------------------ +"##, + }, + Lint { + label: "duration_constants", + description: r##"# `duration_constants` + +The tracking issue for this feature is: [#57391] + +[#57391]: https://github.com/rust-lang/rust/issues/57391 + +------------------------ +"##, + }, + Lint { + label: "duration_consts_float", + description: r##"# `duration_consts_float` + +The tracking issue for this feature is: [#72440] + +[#72440]: https://github.com/rust-lang/rust/issues/72440 + +------------------------ +"##, + }, + Lint { + label: "dyn_star", + description: r##"# `dyn_star` + +The tracking issue for this feature is: [#102425] + +[#102425]: https://github.com/rust-lang/rust/issues/102425 + +------------------------ +"##, + }, + Lint { + label: "edition_panic", + description: r##"# `edition_panic` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "effects", + description: r##"# `effects` + +The tracking issue for this feature is: [#102090] + +[#102090]: https://github.com/rust-lang/rust/issues/102090 + +------------------------ +"##, + }, + Lint { + label: "entry_insert", + description: r##"# `entry_insert` + +The tracking issue for this feature is: [#65225] + +[#65225]: https://github.com/rust-lang/rust/issues/65225 + +------------------------ +"##, + }, + Lint { + label: "ermsb_target_feature", + description: r##"# `ermsb_target_feature` + +The tracking issue for this feature is: [#44839] + +[#44839]: https://github.com/rust-lang/rust/issues/44839 + +------------------------ +"##, + }, + Lint { + label: "error_generic_member_access", + description: r##"# `error_generic_member_access` + +The tracking issue for this feature is: [#99301] + +[#99301]: https://github.com/rust-lang/rust/issues/99301 + +------------------------ +"##, + }, + Lint { + label: "error_in_core", + description: r##"# `error_in_core` + +The tracking issue for this feature is: [#103765] + +[#103765]: https://github.com/rust-lang/rust/issues/103765 + +------------------------ +"##, + }, + Lint { + label: "error_iter", + description: r##"# `error_iter` + +The tracking issue for this feature is: [#58520] + +[#58520]: https://github.com/rust-lang/rust/issues/58520 + +------------------------ +"##, + }, + Lint { + label: "error_reporter", + description: r##"# `error_reporter` + +The tracking issue for this feature is: [#90172] + +[#90172]: https://github.com/rust-lang/rust/issues/90172 + +------------------------ +"##, + }, + Lint { + label: "error_type_id", + description: r##"# `error_type_id` + +The tracking issue for this feature is: [#60784] + +[#60784]: https://github.com/rust-lang/rust/issues/60784 + +------------------------ +"##, + }, + Lint { + label: "exact_size_is_empty", + description: r##"# `exact_size_is_empty` + +The tracking issue for this feature is: [#35428] + +[#35428]: https://github.com/rust-lang/rust/issues/35428 + +------------------------ +"##, + }, + Lint { label: "exclusive_range_pattern", description: r##"# `exclusive_range_pattern` @@ -2020,60 +4454,105 @@ stabilized. "##, }, Lint { - label: "explicit_generic_args_with_impl_trait", - description: r##"# `explicit_generic_args_with_impl_trait` + label: "exclusive_wrapper", + description: r##"# `exclusive_wrapper` -The tracking issue for this feature is: [#83701] +The tracking issue for this feature is: [#98407] -[#83701]: https://github.com/rust-lang/rust/issues/83701 +[#98407]: https://github.com/rust-lang/rust/issues/98407 ------------------------ +"##, + }, + Lint { + label: "exhaustive_patterns", + description: r##"# `exhaustive_patterns` -The `explicit_generic_args_with_impl_trait` feature gate lets you specify generic arguments even -when `impl Trait` is used in argument position. +The tracking issue for this feature is: [#51085] -A simple example is: +[#51085]: https://github.com/rust-lang/rust/issues/51085 -```rust -#![feature(explicit_generic_args_with_impl_trait)] +------------------------ +"##, + }, + Lint { + label: "exit_status_error", + description: r##"# `exit_status_error` -fn foo<T: ?Sized>(_f: impl AsRef<T>) {} +The tracking issue for this feature is: [#84908] -fn main() { - foo::<str>("".to_string()); -} -``` +[#84908]: https://github.com/rust-lang/rust/issues/84908 -This is currently rejected: +------------------------ +"##, + }, + Lint { + label: "exitcode_exit_method", + description: r##"# `exitcode_exit_method` -```text -error[E0632]: cannot provide explicit generic arguments when `impl Trait` is used in argument position - --> src/main.rs:6:11 - | -6 | foo::<str>("".to_string()); - | ^^^ explicit generic argument not allowed +The tracking issue for this feature is: [#97100] -``` +[#97100]: https://github.com/rust-lang/rust/issues/97100 -However it would compile if `explicit_generic_args_with_impl_trait` is enabled. +------------------------ +"##, + }, + Lint { + label: "explicit_tail_calls", + description: r##"# `explicit_tail_calls` -Note that the synthetic type parameters from `impl Trait` are still implicit and you -cannot explicitly specify these: +The tracking issue for this feature is: [#112788] -```rust,compile_fail -#![feature(explicit_generic_args_with_impl_trait)] +[#112788]: https://github.com/rust-lang/rust/issues/112788 -fn foo<T: ?Sized>(_f: impl AsRef<T>) {} -fn bar<T: ?Sized, F: AsRef<T>>(_f: F) {} +------------------------ +"##, + }, + Lint { + label: "extend_one", + description: r##"# `extend_one` -fn main() { - bar::<str, _>("".to_string()); // Okay - bar::<str, String>("".to_string()); // Okay +The tracking issue for this feature is: [#72631] - foo::<str>("".to_string()); // Okay - foo::<str, String>("".to_string()); // Error, you cannot specify `impl Trait` explicitly -} -``` +[#72631]: https://github.com/rust-lang/rust/issues/72631 + +------------------------ +"##, + }, + Lint { + label: "extended_varargs_abi_support", + description: r##"# `extended_varargs_abi_support` + +The tracking issue for this feature is: [#100189] + +[#100189]: https://github.com/rust-lang/rust/issues/100189 + +------------------------ + +This feature adds the possibility of using `sysv64`, `win64` or `efiapi` calling +conventions on functions with varargs. +"##, + }, + Lint { + label: "extern_types", + description: r##"# `extern_types` + +The tracking issue for this feature is: [#43467] + +[#43467]: https://github.com/rust-lang/rust/issues/43467 + +------------------------ +"##, + }, + Lint { + label: "extract_if", + description: r##"# `extract_if` + +The tracking issue for this feature is: [#43244] + +[#43244]: https://github.com/rust-lang/rust/issues/43244 + +------------------------ "##, }, Lint { @@ -2211,6 +4690,72 @@ against are compatible with those of the `#[ffi_pure]`. "##, }, Lint { + label: "ffi_returns_twice", + description: r##"# `ffi_returns_twice` + +The tracking issue for this feature is: [#58314] + +[#58314]: https://github.com/rust-lang/rust/issues/58314 + +------------------------ +"##, + }, + Lint { + label: "file_create_new", + description: r##"# `file_create_new` + +The tracking issue for this feature is: [#105135] + +[#105135]: https://github.com/rust-lang/rust/issues/105135 + +------------------------ +"##, + }, + Lint { + label: "file_set_times", + description: r##"# `file_set_times` + +The tracking issue for this feature is: [#98245] + +[#98245]: https://github.com/rust-lang/rust/issues/98245 + +------------------------ +"##, + }, + Lint { + label: "float_gamma", + description: r##"# `float_gamma` + +The tracking issue for this feature is: [#99842] + +[#99842]: https://github.com/rust-lang/rust/issues/99842 + +------------------------ +"##, + }, + Lint { + label: "float_minimum_maximum", + description: r##"# `float_minimum_maximum` + +The tracking issue for this feature is: [#91079] + +[#91079]: https://github.com/rust-lang/rust/issues/91079 + +------------------------ +"##, + }, + Lint { + label: "float_next_up_down", + description: r##"# `float_next_up_down` + +The tracking issue for this feature is: [#91399] + +[#91399]: https://github.com/rust-lang/rust/issues/91399 + +------------------------ +"##, + }, + Lint { label: "flt2dec", description: r##"# `flt2dec` @@ -2220,6 +4765,15 @@ This feature is internal to the Rust compiler and is not intended for general us "##, }, Lint { + label: "fmt_helpers_for_derive", + description: r##"# `fmt_helpers_for_derive` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { label: "fmt_internals", description: r##"# `fmt_internals` @@ -2229,6 +4783,26 @@ This feature is internal to the Rust compiler and is not intended for general us "##, }, Lint { + label: "fn_align", + description: r##"# `fn_align` + +The tracking issue for this feature is: [#82232] + +[#82232]: https://github.com/rust-lang/rust/issues/82232 + +------------------------ +"##, + }, + Lint { + label: "fn_ptr_trait", + description: r##"# `fn_ptr_trait` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { label: "fn_traits", description: r##"# `fn_traits` @@ -2243,7 +4817,7 @@ 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)] @@ -2268,6 +4842,90 @@ fn main() { "##, }, Lint { + label: "forget_unsized", + description: r##"# `forget_unsized` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "format_args_nl", + description: r##"# `format_args_nl` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "fs_try_exists", + description: r##"# `fs_try_exists` + +The tracking issue for this feature is: [#83186] + +[#83186]: https://github.com/rust-lang/rust/issues/83186 + +------------------------ +"##, + }, + Lint { + label: "fundamental", + description: r##"# `fundamental` + +The tracking issue for this feature is: [#29635] + +[#29635]: https://github.com/rust-lang/rust/issues/29635 + +------------------------ +"##, + }, + Lint { + label: "future_join", + description: r##"# `future_join` + +The tracking issue for this feature is: [#91642] + +[#91642]: https://github.com/rust-lang/rust/issues/91642 + +------------------------ +"##, + }, + Lint { + label: "gen_future", + description: r##"# `gen_future` + +The tracking issue for this feature is: [#50547] + +[#50547]: https://github.com/rust-lang/rust/issues/50547 + +------------------------ +"##, + }, + Lint { + label: "generator_clone", + description: r##"# `generator_clone` + +The tracking issue for this feature is: [#95360] + +[#95360]: https://github.com/rust-lang/rust/issues/95360 + +------------------------ +"##, + }, + Lint { + label: "generator_trait", + description: r##"# `generator_trait` + +The tracking issue for this feature is: [#43122] + +[#43122]: https://github.com/rust-lang/rust/issues/43122 + +------------------------ +"##, + }, + Lint { label: "generators", description: r##"# `generators` @@ -2518,82 +5176,253 @@ does. "##, }, Lint { - label: "half_open_range_patterns", - description: r##"# `half_open_range_patterns` + label: "generic_arg_infer", + description: r##"# `generic_arg_infer` + +The tracking issue for this feature is: [#85077] + +[#85077]: https://github.com/rust-lang/rust/issues/85077 + +------------------------ +"##, + }, + Lint { + label: "generic_assert", + description: r##"# `generic_assert` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "generic_assert_internals", + description: r##"# `generic_assert_internals` + +The tracking issue for this feature is: [#44838] + +[#44838]: https://github.com/rust-lang/rust/issues/44838 + +------------------------ +"##, + }, + Lint { + label: "generic_associated_types_extended", + description: r##"# `generic_associated_types_extended` + +The tracking issue for this feature is: [#95451] + +[#95451]: https://github.com/rust-lang/rust/issues/95451 + +------------------------ +"##, + }, + Lint { + label: "generic_const_exprs", + description: r##"# `generic_const_exprs` + +The tracking issue for this feature is: [#76560] + +[#76560]: https://github.com/rust-lang/rust/issues/76560 + +------------------------ +"##, + }, + Lint { + label: "generic_const_items", + description: r##"# `generic_const_items` + +The tracking issue for this feature is: [#113521] + +[#113521]: https://github.com/rust-lang/rust/issues/113521 + +------------------------ +"##, + }, + Lint { + label: "get_many_mut", + description: r##"# `get_many_mut` + +The tracking issue for this feature is: [#104642] + +[#104642]: https://github.com/rust-lang/rust/issues/104642 + +------------------------ +"##, + }, + Lint { + label: "get_mut_unchecked", + description: r##"# `get_mut_unchecked` + +The tracking issue for this feature is: [#63292] + +[#63292]: https://github.com/rust-lang/rust/issues/63292 + +------------------------ +"##, + }, + Lint { + label: "half_open_range_patterns_in_slices", + description: r##"# `half_open_range_patterns_in_slices` The tracking issue for this feature is: [#67264] -It is part of the `#![exclusive_range_pattern]` feature, +It is part of the `exclusive_range_pattern` feature, tracked at [#37854]. [#67264]: https://github.com/rust-lang/rust/issues/67264 [#37854]: https://github.com/rust-lang/rust/issues/37854 ----- -The `half_open_range_patterns` feature allows RangeTo patterns -(`..10`) to be used in appropriate pattern matching contexts. -This requires also enabling the `exclusive_range_pattern` feature. - -It also enabled RangeFrom patterns but that has since been -stabilized. +This feature allow using top-level half-open range patterns in slices. ```rust -#![feature(half_open_range_patterns)] +#![feature(half_open_range_patterns_in_slices)] #![feature(exclusive_range_pattern)] - let x = 5; - match x { - ..0 => println!("negative!"), // "RangeTo" pattern. Unstable. - 0 => println!("zero!"), - 1.. => println!("positive!"), // "RangeFrom" pattern. Stable. - } + +fn main() { + let xs = [13, 1, 5, 2, 3, 1, 21, 8]; + let [a @ 3.., b @ ..3, c @ 4..6, ..] = xs else { return; }; +} +``` + +Note that this feature is not required if the patterns are wrapped between parenthesis. + +```rust +fn main() { + let xs = [13, 1]; + let [(a @ 3..), c] = xs else { return; }; +} ``` "##, }, Lint { - label: "infer_static_outlives_requirements", - description: r##"# `infer_static_outlives_requirements` + label: "hash_extract_if", + description: r##"# `hash_extract_if` -The tracking issue for this feature is: [#54185] +The tracking issue for this feature is: [#59618] -[#54185]: https://github.com/rust-lang/rust/issues/54185 +[#59618]: https://github.com/rust-lang/rust/issues/59618 ------------------------ -The `infer_static_outlives_requirements` feature indicates that certain -`'static` outlives requirements can be inferred by the compiler rather than -stating them explicitly. +"##, + }, + Lint { + label: "hash_raw_entry", + description: r##"# `hash_raw_entry` -Note: It is an accompanying feature to `infer_outlives_requirements`, -which must be enabled to infer outlives requirements. +The tracking issue for this feature is: [#56167] -For example, currently generic struct definitions that contain -references, require where-clauses of the form T: 'static. By using -this feature the outlives predicates will be inferred, although -they may still be written explicitly. +[#56167]: https://github.com/rust-lang/rust/issues/56167 -```rust,ignore (pseudo-Rust) -struct Foo<U> where U: 'static { // <-- currently required - bar: Bar<U> -} -struct Bar<T: 'static> { - x: T, -} -``` +------------------------ +"##, + }, + Lint { + label: "hash_set_entry", + description: r##"# `hash_set_entry` +The tracking issue for this feature is: [#60896] -## Examples: +[#60896]: https://github.com/rust-lang/rust/issues/60896 -```rust,ignore (pseudo-Rust) -#![feature(infer_outlives_requirements)] -#![feature(infer_static_outlives_requirements)] +------------------------ +"##, + }, + Lint { + label: "hasher_prefixfree_extras", + description: r##"# `hasher_prefixfree_extras` -#[rustc_outlives] -// Implicitly infer U: 'static -struct Foo<U> { - bar: Bar<U> -} -struct Bar<T: 'static> { - x: T, -} -``` +The tracking issue for this feature is: [#96762] + +[#96762]: https://github.com/rust-lang/rust/issues/96762 + +------------------------ +"##, + }, + Lint { + label: "hashmap_internals", + description: r##"# `hashmap_internals` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "hexagon_target_feature", + description: r##"# `hexagon_target_feature` + +The tracking issue for this feature is: [#44839] + +[#44839]: https://github.com/rust-lang/rust/issues/44839 + +------------------------ +"##, + }, + Lint { + label: "hint_must_use", + description: r##"# `hint_must_use` + +The tracking issue for this feature is: [#94745] + +[#94745]: https://github.com/rust-lang/rust/issues/94745 + +------------------------ +"##, + }, + Lint { + label: "if_let_guard", + description: r##"# `if_let_guard` + +The tracking issue for this feature is: [#51114] + +[#51114]: https://github.com/rust-lang/rust/issues/51114 + +------------------------ +"##, + }, + Lint { + label: "impl_trait_in_assoc_type", + description: r##"# `impl_trait_in_assoc_type` + +The tracking issue for this feature is: [#63063] + +[#63063]: https://github.com/rust-lang/rust/issues/63063 + +------------------------ +"##, + }, + Lint { + label: "impl_trait_in_fn_trait_return", + description: r##"# `impl_trait_in_fn_trait_return` + +The tracking issue for this feature is: [#99697] + +[#99697]: https://github.com/rust-lang/rust/issues/99697 + +------------------------ +"##, + }, + Lint { + label: "imported_main", + description: r##"# `imported_main` + +The tracking issue for this feature is: [#28937] + +[#28937]: https://github.com/rust-lang/rust/issues/28937 + +------------------------ +"##, + }, + Lint { + label: "inherent_associated_types", + description: r##"# `inherent_associated_types` + +The tracking issue for this feature is: [#8995] + +[#8995]: https://github.com/rust-lang/rust/issues/8995 + +------------------------ "##, }, Lint { @@ -2661,10 +5490,41 @@ match some_int { "##, }, Lint { - label: "int_error_internals", - description: r##"# `int_error_internals` + label: "inplace_iteration", + description: r##"# `inplace_iteration` -This feature is internal to the Rust compiler and is not intended for general use. +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "int_roundings", + description: r##"# `int_roundings` + +The tracking issue for this feature is: [#88581] + +[#88581]: https://github.com/rust-lang/rust/issues/88581 + +------------------------ +"##, + }, + Lint { + label: "integer_atomics", + description: r##"# `integer_atomics` + +The tracking issue for this feature is: [#99069] + +[#99069]: https://github.com/rust-lang/rust/issues/99069 + +------------------------ +"##, + }, + Lint { + label: "internal_impls_macro", + description: r##"# `internal_impls_macro` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. ------------------------ "##, @@ -2718,12 +5578,13 @@ via a declaration like ```rust #![feature(intrinsics)] +#![allow(internal_features)] # fn main() {} extern "rust-intrinsic" { fn transmute<T, U>(x: T) -> U; - fn offset<T>(dst: *const T, offset: isize) -> *const T; + fn arith_offset<T>(dst: *const T, offset: isize) -> *const T; } ``` @@ -2731,6 +5592,92 @@ As with any other FFI functions, these are always `unsafe` to call. "##, }, Lint { + label: "io_error_downcast", + description: r##"# `io_error_downcast` + +The tracking issue for this feature is: [#99262] + +[#99262]: https://github.com/rust-lang/rust/issues/99262 + +------------------------ +"##, + }, + Lint { + label: "io_error_more", + description: r##"# `io_error_more` + +The tracking issue for this feature is: [#86442] + +[#86442]: https://github.com/rust-lang/rust/issues/86442 + +------------------------ +"##, + }, + Lint { + label: "io_error_uncategorized", + description: r##"# `io_error_uncategorized` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "io_slice_advance", + description: r##"# `io_slice_advance` + +The tracking issue for this feature is: [#62726] + +[#62726]: https://github.com/rust-lang/rust/issues/62726 + +------------------------ +"##, + }, + Lint { + label: "ip", + description: r##"# `ip` + +The tracking issue for this feature is: [#27709] + +[#27709]: https://github.com/rust-lang/rust/issues/27709 + +------------------------ +"##, + }, + Lint { + label: "ip_bits", + description: r##"# `ip_bits` + +The tracking issue for this feature is: [#113744] + +[#113744]: https://github.com/rust-lang/rust/issues/113744 + +------------------------ +"##, + }, + Lint { + label: "ip_in_core", + description: r##"# `ip_in_core` + +The tracking issue for this feature is: [#108443] + +[#108443]: https://github.com/rust-lang/rust/issues/108443 + +------------------------ +"##, + }, + Lint { + label: "is_ascii_octdigit", + description: r##"# `is_ascii_octdigit` + +The tracking issue for this feature is: [#101288] + +[#101288]: https://github.com/rust-lang/rust/issues/101288 + +------------------------ +"##, + }, + Lint { label: "is_sorted", description: r##"# `is_sorted` @@ -2746,6 +5693,160 @@ add the methods `is_sorted`, `is_sorted_by` and `is_sorted_by_key` to "##, }, Lint { + label: "isqrt", + description: r##"# `isqrt` + +The tracking issue for this feature is: [#116226] + +[#116226]: https://github.com/rust-lang/rust/issues/116226 + +------------------------ +"##, + }, + Lint { + label: "iter_advance_by", + description: r##"# `iter_advance_by` + +The tracking issue for this feature is: [#77404] + +[#77404]: https://github.com/rust-lang/rust/issues/77404 + +------------------------ +"##, + }, + Lint { + label: "iter_array_chunks", + description: r##"# `iter_array_chunks` + +The tracking issue for this feature is: [#100450] + +[#100450]: https://github.com/rust-lang/rust/issues/100450 + +------------------------ +"##, + }, + Lint { + label: "iter_collect_into", + description: r##"# `iter_collect_into` + +The tracking issue for this feature is: [#94780] + +[#94780]: https://github.com/rust-lang/rust/issues/94780 + +------------------------ +"##, + }, + Lint { + label: "iter_from_generator", + description: r##"# `iter_from_generator` + +The tracking issue for this feature is: [#43122] + +[#43122]: https://github.com/rust-lang/rust/issues/43122 + +------------------------ +"##, + }, + Lint { + label: "iter_intersperse", + description: r##"# `iter_intersperse` + +The tracking issue for this feature is: [#79524] + +[#79524]: https://github.com/rust-lang/rust/issues/79524 + +------------------------ +"##, + }, + Lint { + label: "iter_is_partitioned", + description: r##"# `iter_is_partitioned` + +The tracking issue for this feature is: [#62544] + +[#62544]: https://github.com/rust-lang/rust/issues/62544 + +------------------------ +"##, + }, + Lint { + label: "iter_map_windows", + description: r##"# `iter_map_windows` + +The tracking issue for this feature is: [#87155] + +[#87155]: https://github.com/rust-lang/rust/issues/87155 + +------------------------ +"##, + }, + Lint { + label: "iter_next_chunk", + description: r##"# `iter_next_chunk` + +The tracking issue for this feature is: [#98326] + +[#98326]: https://github.com/rust-lang/rust/issues/98326 + +------------------------ +"##, + }, + Lint { + label: "iter_order_by", + description: r##"# `iter_order_by` + +The tracking issue for this feature is: [#64295] + +[#64295]: https://github.com/rust-lang/rust/issues/64295 + +------------------------ +"##, + }, + Lint { + label: "iter_partition_in_place", + description: r##"# `iter_partition_in_place` + +The tracking issue for this feature is: [#62543] + +[#62543]: https://github.com/rust-lang/rust/issues/62543 + +------------------------ +"##, + }, + Lint { + label: "iter_repeat_n", + description: r##"# `iter_repeat_n` + +The tracking issue for this feature is: [#104434] + +[#104434]: https://github.com/rust-lang/rust/issues/104434 + +------------------------ +"##, + }, + Lint { + label: "iterator_try_collect", + description: r##"# `iterator_try_collect` + +The tracking issue for this feature is: [#94047] + +[#94047]: https://github.com/rust-lang/rust/issues/94047 + +------------------------ +"##, + }, + Lint { + label: "iterator_try_reduce", + description: r##"# `iterator_try_reduce` + +The tracking issue for this feature is: [#87053] + +[#87053]: https://github.com/rust-lang/rust/issues/87053 + +------------------------ +"##, + }, + Lint { label: "lang_items", description: r##"# `lang_items` @@ -2758,304 +5859,190 @@ functionality that isn't hard-coded into the language, but is implemented in libraries, with a special marker to tell the compiler it exists. The marker is the attribute `#[lang = "..."]` and there are various different values of `...`, i.e. various different 'lang -items'. +items'. Most of them can only be defined once. -For example, `Box` pointers require two lang items, one for allocation -and one for deallocation. A freestanding program that uses the `Box` -sugar for dynamic allocations via `malloc` and `free`: +Lang items are loaded lazily by the compiler; e.g. if one never uses `Box` +then there is no need to define a function for `exchange_malloc`. +`rustc` will emit an error when an item is needed but not found in the current +crate or any that it depends on. + +Some features provided by lang items: + +- overloadable operators via traits: the traits corresponding to the + `==`, `<`, dereferencing (`*`) and `+` (etc.) operators are all + marked with lang items; those specific four are `eq`, `partial_ord`, + `deref`/`deref_mut`, and `add` respectively. +- panicking: the `panic` and `panic_impl` lang items, among others. +- stack unwinding: the lang item `eh_personality` is a function used by the + failure mechanisms of the compiler. This is often mapped to GCC's personality + function (see the [`std` implementation][personality] for more information), + but programs which don't trigger a panic can be assured that this function is + never called. Additionally, a `eh_catch_typeinfo` static is needed for certain + targets which implement Rust panics on top of C++ exceptions. +- the traits in `core::marker` used to indicate types of + various kinds; e.g. lang items `sized`, `sync` and `copy`. +- memory allocation, see below. + +Most lang items are defined by `core`, but if you're trying to build +an executable without the `std` crate, you might run into the need +for lang item definitions. + +[personality]: https://github.com/rust-lang/rust/blob/master/library/std/src/sys/personality/gcc.rs + +## Example: Implementing a `Box` + +`Box` pointers require two lang items: one for the type itself and one for +allocation. A freestanding program that uses the `Box` sugar for dynamic +allocations via `malloc` and `free`: ```rust,ignore (libc-is-finicky) -#![feature(lang_items, box_syntax, start, libc, core_intrinsics, rustc_private)] +#![feature(lang_items, start, core_intrinsics, rustc_private, panic_unwind, rustc_attrs)] +#![allow(internal_features)] #![no_std] + +extern crate libc; +extern crate unwind; + +use core::ffi::c_void; use core::intrinsics; use core::panic::PanicInfo; +use core::ptr::NonNull; -extern crate libc; +pub struct Global; // the global allocator +struct Unique<T>(NonNull<T>); #[lang = "owned_box"] -pub struct Box<T>(*mut T); +pub struct Box<T, A = Global>(Unique<T>, A); + +impl<T> Box<T> { + pub fn new(x: T) -> Self { + #[rustc_box] + Box::new(x) + } +} + +impl<T, A> Drop for Box<T, A> { + fn drop(&mut self) { + unsafe { + libc::free(self.0.0.as_ptr() as *mut c_void); + } + } +} #[lang = "exchange_malloc"] unsafe fn allocate(size: usize, _align: usize) -> *mut u8 { - let p = libc::malloc(size as libc::size_t) as *mut u8; + let p = libc::malloc(size) as *mut u8; // Check if `malloc` failed: - if p as usize == 0 { + if p.is_null() { intrinsics::abort(); } p } -#[lang = "box_free"] -unsafe fn box_free<T: ?Sized>(ptr: *mut T) { - libc::free(ptr as *mut libc::c_void) -} - #[start] fn main(_argc: isize, _argv: *const *const u8) -> isize { - let _x = box 1; + let _x = Box::new(1); 0 } -#[lang = "eh_personality"] extern fn rust_eh_personality() {} -#[lang = "panic_impl"] extern fn rust_begin_panic(info: &PanicInfo) -> ! { unsafe { intrinsics::abort() } } -#[no_mangle] pub extern fn rust_eh_register_frames () {} -#[no_mangle] pub extern fn rust_eh_unregister_frames () {} +#[lang = "eh_personality"] +fn rust_eh_personality() {} + +#[panic_handler] +fn panic_handler(_info: &PanicInfo) -> ! { intrinsics::abort() } ``` Note the use of `abort`: the `exchange_malloc` lang item is assumed to return a valid pointer, and so needs to do the check internally. -Other features provided by lang items include: - -- overloadable operators via traits: the traits corresponding to the - `==`, `<`, dereferencing (`*`) and `+` (etc.) operators are all - marked with lang items; those specific four are `eq`, `ord`, - `deref`, and `add` respectively. -- stack unwinding and general failure; the `eh_personality`, - `panic` and `panic_bounds_check` lang items. -- the traits in `std::marker` used to indicate types of - various kinds; lang items `send`, `sync` and `copy`. -- the marker types and variance indicators found in - `std::marker`; lang items `covariant_type`, - `contravariant_lifetime`, etc. - -Lang items are loaded lazily by the compiler; e.g. if one never uses -`Box` then there is no need to define functions for `exchange_malloc` -and `box_free`. `rustc` will emit an error when an item is needed -but not found in the current crate or any that it depends on. - -Most lang items are defined by `libcore`, but if you're trying to build -an executable without the standard library, you'll run into the need -for lang items. The rest of this page focuses on this use-case, even though -lang items are a bit broader than that. - -### Using libc - -In order to build a `#[no_std]` executable we will need libc as a dependency. -We can specify this using our `Cargo.toml` file: - -```toml -[dependencies] -libc = { version = "0.2.14", default-features = false } -``` - -Note that the default features have been disabled. This is a critical step - -**the default features of libc include the standard library and so must be -disabled.** - -### Writing an executable without stdlib - -Controlling the entry point is possible in two ways: the `#[start]` attribute, -or overriding the default shim for the C `main` function with your own. - -The function marked `#[start]` is passed the command line parameters -in the same format as C: +## List of all language items -```rust,ignore (libc-is-finicky) -#![feature(lang_items, core_intrinsics, rustc_private)] -#![feature(start)] -#![no_std] -use core::intrinsics; -use core::panic::PanicInfo; +An up-to-date list of all language items can be found [here] in the compiler code. -// Pull in the system libc library for what crt0.o likely requires. -extern crate libc; +[here]: https://github.com/rust-lang/rust/blob/master/compiler/rustc_hir/src/lang_items.rs +"##, + }, + Lint { + label: "large_assignments", + description: r##"# `large_assignments` -// Entry point for this program. -#[start] -fn start(_argc: isize, _argv: *const *const u8) -> isize { - 0 -} +The tracking issue for this feature is: [#83518] -// These functions are used by the compiler, but not -// for a bare-bones hello world. These are normally -// provided by libstd. -#[lang = "eh_personality"] -#[no_mangle] -pub extern fn rust_eh_personality() { -} +[#83518]: https://github.com/rust-lang/rust/issues/83518 -#[lang = "panic_impl"] -#[no_mangle] -pub extern fn rust_begin_panic(info: &PanicInfo) -> ! { - unsafe { intrinsics::abort() } -} -``` +------------------------ +"##, + }, + Lint { + label: "layout_for_ptr", + description: r##"# `layout_for_ptr` -To override the compiler-inserted `main` shim, one has to disable it -with `#![no_main]` and then create the appropriate symbol with the -correct ABI and the correct name, which requires overriding the -compiler's name mangling too: +The tracking issue for this feature is: [#69835] -```rust,ignore (libc-is-finicky) -#![feature(lang_items, core_intrinsics, rustc_private)] -#![feature(start)] -#![no_std] -#![no_main] -use core::intrinsics; -use core::panic::PanicInfo; +[#69835]: https://github.com/rust-lang/rust/issues/69835 -// Pull in the system libc library for what crt0.o likely requires. -extern crate libc; +------------------------ +"##, + }, + Lint { + label: "lazy_cell", + description: r##"# `lazy_cell` -// Entry point for this program. -#[no_mangle] // ensure that this symbol is called `main` in the output -pub extern fn main(_argc: i32, _argv: *const *const u8) -> i32 { - 0 -} +The tracking issue for this feature is: [#109736] -// These functions are used by the compiler, but not -// for a bare-bones hello world. These are normally -// provided by libstd. -#[lang = "eh_personality"] -#[no_mangle] -pub extern fn rust_eh_personality() { -} +[#109736]: https://github.com/rust-lang/rust/issues/109736 -#[lang = "panic_impl"] -#[no_mangle] -pub extern fn rust_begin_panic(info: &PanicInfo) -> ! { - unsafe { intrinsics::abort() } -} -``` +------------------------ +"##, + }, + Lint { + label: "lazy_cell_consume", + description: r##"# `lazy_cell_consume` -In many cases, you may need to manually link to the `compiler_builtins` crate -when building a `no_std` binary. You may observe this via linker error messages -such as "```undefined reference to `__rust_probestack'```". +The tracking issue for this feature is: [#109736] -## More about the language items +[#109736]: https://github.com/rust-lang/rust/issues/109736 -The compiler currently makes a few assumptions about symbols which are -available in the executable to call. Normally these functions are provided by -the standard library, but without it you must define your own. These symbols -are called "language items", and they each have an internal name, and then a -signature that an implementation must conform to. +------------------------ +"##, + }, + Lint { + label: "lazy_type_alias", + description: r##"# `lazy_type_alias` -The first of these functions, `rust_eh_personality`, is used by the failure -mechanisms of the compiler. This is often mapped to GCC's personality function -(see the [libstd implementation][unwind] for more information), but crates -which do not trigger a panic can be assured that this function is never -called. The language item's name is `eh_personality`. +The tracking issue for this feature is: [#112792] -[unwind]: https://github.com/rust-lang/rust/blob/master/library/panic_unwind/src/gcc.rs +[#112792]: https://github.com/rust-lang/rust/issues/112792 -The second function, `rust_begin_panic`, is also used by the failure mechanisms of the -compiler. When a panic happens, this controls the message that's displayed on -the screen. While the language item's name is `panic_impl`, the symbol name is -`rust_begin_panic`. +------------------------ +"##, + }, + Lint { + label: "let_chains", + description: r##"# `let_chains` -Finally, a `eh_catch_typeinfo` static is needed for certain targets which -implement Rust panics on top of C++ exceptions. +The tracking issue for this feature is: [#53667] -## List of all language items +[#53667]: https://github.com/rust-lang/rust/issues/53667 -This is a list of all language items in Rust along with where they are located in -the source code. - -- Primitives - - `i8`: `libcore/num/mod.rs` - - `i16`: `libcore/num/mod.rs` - - `i32`: `libcore/num/mod.rs` - - `i64`: `libcore/num/mod.rs` - - `i128`: `libcore/num/mod.rs` - - `isize`: `libcore/num/mod.rs` - - `u8`: `libcore/num/mod.rs` - - `u16`: `libcore/num/mod.rs` - - `u32`: `libcore/num/mod.rs` - - `u64`: `libcore/num/mod.rs` - - `u128`: `libcore/num/mod.rs` - - `usize`: `libcore/num/mod.rs` - - `f32`: `libstd/f32.rs` - - `f64`: `libstd/f64.rs` - - `char`: `libcore/char.rs` - - `slice`: `liballoc/slice.rs` - - `str`: `liballoc/str.rs` - - `const_ptr`: `libcore/ptr.rs` - - `mut_ptr`: `libcore/ptr.rs` - - `unsafe_cell`: `libcore/cell.rs` -- Runtime - - `start`: `libstd/rt.rs` - - `eh_personality`: `libpanic_unwind/emcc.rs` (EMCC) - - `eh_personality`: `libpanic_unwind/gcc.rs` (GNU) - - `eh_personality`: `libpanic_unwind/seh.rs` (SEH) - - `eh_catch_typeinfo`: `libpanic_unwind/emcc.rs` (EMCC) - - `panic`: `libcore/panicking.rs` - - `panic_bounds_check`: `libcore/panicking.rs` - - `panic_impl`: `libcore/panicking.rs` - - `panic_impl`: `libstd/panicking.rs` -- Allocations - - `owned_box`: `liballoc/boxed.rs` - - `exchange_malloc`: `liballoc/heap.rs` - - `box_free`: `liballoc/heap.rs` -- Operands - - `not`: `libcore/ops/bit.rs` - - `bitand`: `libcore/ops/bit.rs` - - `bitor`: `libcore/ops/bit.rs` - - `bitxor`: `libcore/ops/bit.rs` - - `shl`: `libcore/ops/bit.rs` - - `shr`: `libcore/ops/bit.rs` - - `bitand_assign`: `libcore/ops/bit.rs` - - `bitor_assign`: `libcore/ops/bit.rs` - - `bitxor_assign`: `libcore/ops/bit.rs` - - `shl_assign`: `libcore/ops/bit.rs` - - `shr_assign`: `libcore/ops/bit.rs` - - `deref`: `libcore/ops/deref.rs` - - `deref_mut`: `libcore/ops/deref.rs` - - `index`: `libcore/ops/index.rs` - - `index_mut`: `libcore/ops/index.rs` - - `add`: `libcore/ops/arith.rs` - - `sub`: `libcore/ops/arith.rs` - - `mul`: `libcore/ops/arith.rs` - - `div`: `libcore/ops/arith.rs` - - `rem`: `libcore/ops/arith.rs` - - `neg`: `libcore/ops/arith.rs` - - `add_assign`: `libcore/ops/arith.rs` - - `sub_assign`: `libcore/ops/arith.rs` - - `mul_assign`: `libcore/ops/arith.rs` - - `div_assign`: `libcore/ops/arith.rs` - - `rem_assign`: `libcore/ops/arith.rs` - - `eq`: `libcore/cmp.rs` - - `ord`: `libcore/cmp.rs` -- Functions - - `fn`: `libcore/ops/function.rs` - - `fn_mut`: `libcore/ops/function.rs` - - `fn_once`: `libcore/ops/function.rs` - - `generator_state`: `libcore/ops/generator.rs` - - `generator`: `libcore/ops/generator.rs` -- Other - - `coerce_unsized`: `libcore/ops/unsize.rs` - - `drop`: `libcore/ops/drop.rs` - - `drop_in_place`: `libcore/ptr.rs` - - `clone`: `libcore/clone.rs` - - `copy`: `libcore/marker.rs` - - `send`: `libcore/marker.rs` - - `sized`: `libcore/marker.rs` - - `unsize`: `libcore/marker.rs` - - `sync`: `libcore/marker.rs` - - `phantom_data`: `libcore/marker.rs` - - `discriminant_kind`: `libcore/marker.rs` - - `freeze`: `libcore/marker.rs` - - `debug_trait`: `libcore/fmt/mod.rs` - - `non_zero`: `libcore/nonzero.rs` - - `arc`: `liballoc/sync.rs` - - `rc`: `liballoc/rc.rs` +------------------------ "##, }, Lint { - label: "libstd_sys_internals", - description: r##"# `libstd_sys_internals` + label: "liballoc_internals", + description: r##"# `liballoc_internals` -This feature is internal to the Rust compiler and is not intended for general use. +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. ------------------------ "##, }, Lint { - label: "libstd_thread_internals", - description: r##"# `libstd_thread_internals` + label: "libstd_sys_internals", + description: r##"# `libstd_sys_internals` This feature is internal to the Rust compiler and is not intended for general use. @@ -3072,197 +6059,124 @@ This feature is internal to the Rust compiler and is not intended for general us "##, }, Lint { - label: "llvm_asm", - description: r##"# `llvm_asm` + label: "link_llvm_intrinsics", + description: r##"# `link_llvm_intrinsics` -The tracking issue for this feature is: [#70173] +The tracking issue for this feature is: [#29602] -[#70173]: https://github.com/rust-lang/rust/issues/70173 +[#29602]: https://github.com/rust-lang/rust/issues/29602 ------------------------ +"##, + }, + Lint { + label: "linkage", + description: r##"# `linkage` -For extremely low-level manipulations and performance reasons, one -might wish to control the CPU directly. Rust supports using inline -assembly to do this via the `llvm_asm!` macro. - -```rust,ignore (pseudo-code) -llvm_asm!(assembly template - : output operands - : input operands - : clobbers - : options - ); -``` - -Any use of `llvm_asm` is feature gated (requires `#![feature(llvm_asm)]` on the -crate to allow) and of course requires an `unsafe` block. - -> **Note**: the examples here are given in x86/x86-64 assembly, but -> all platforms are supported. - -## Assembly template +The tracking issue for this feature is: [#29603] -The `assembly template` is the only required parameter and must be a -literal string (i.e. `""`) +[#29603]: https://github.com/rust-lang/rust/issues/29603 -```rust -#![feature(llvm_asm)] +------------------------ +"##, + }, + Lint { + label: "linked_list_cursors", + description: r##"# `linked_list_cursors` -#[cfg(any(target_arch = "x86", target_arch = "x86_64"))] -fn foo() { - unsafe { - llvm_asm!("NOP"); - } -} +The tracking issue for this feature is: [#58533] -// Other platforms: -#[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))] -fn foo() { /* ... */ } +[#58533]: https://github.com/rust-lang/rust/issues/58533 -fn main() { - // ... - foo(); - // ... -} -``` +------------------------ +"##, + }, + Lint { + label: "linked_list_remove", + description: r##"# `linked_list_remove` -(The `feature(llvm_asm)` and `#[cfg]`s are omitted from now on.) +The tracking issue for this feature is: [#69210] -Output operands, input operands, clobbers and options are all optional -but you must add the right number of `:` if you skip them: +[#69210]: https://github.com/rust-lang/rust/issues/69210 -```rust -# #![feature(llvm_asm)] -# #[cfg(any(target_arch = "x86", target_arch = "x86_64"))] -# fn main() { unsafe { -llvm_asm!("xor %eax, %eax" - : - : - : "eax" - ); -# } } -# #[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))] -# fn main() {} -``` +------------------------ +"##, + }, + Lint { + label: "lint_reasons", + description: r##"# `lint_reasons` -Whitespace also doesn't matter: +The tracking issue for this feature is: [#54503] -```rust -# #![feature(llvm_asm)] -# #[cfg(any(target_arch = "x86", target_arch = "x86_64"))] -# fn main() { unsafe { -llvm_asm!("xor %eax, %eax" ::: "eax"); -# } } -# #[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))] -# fn main() {} -``` +[#54503]: https://github.com/rust-lang/rust/issues/54503 -## Operands +------------------------ +"##, + }, + Lint { + label: "linux_pidfd", + description: r##"# `linux_pidfd` -Input and output operands follow the same format: `: -"constraints1"(expr1), "constraints2"(expr2), ..."`. Output operand -expressions must be mutable place, or not yet assigned: +The tracking issue for this feature is: [#82971] -```rust -# #![feature(llvm_asm)] -# #[cfg(any(target_arch = "x86", target_arch = "x86_64"))] -fn add(a: i32, b: i32) -> i32 { - let c: i32; - unsafe { - llvm_asm!("add $2, $0" - : "=r"(c) - : "0"(a), "r"(b) - ); - } - c -} -# #[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))] -# fn add(a: i32, b: i32) -> i32 { a + b } +[#82971]: https://github.com/rust-lang/rust/issues/82971 -fn main() { - assert_eq!(add(3, 14159), 14162) -} -``` +------------------------ +"##, + }, + Lint { + label: "log_syntax", + description: r##"# `log_syntax` -If you would like to use real operands in this position, however, -you are required to put curly braces `{}` around the register that -you want, and you are required to put the specific size of the -operand. This is useful for very low level programming, where -which register you use is important: +The tracking issue for this feature is: [#29598] -```rust -# #![feature(llvm_asm)] -# #[cfg(any(target_arch = "x86", target_arch = "x86_64"))] -# unsafe fn read_byte_in(port: u16) -> u8 { -let result: u8; -llvm_asm!("in %dx, %al" : "={al}"(result) : "{dx}"(port)); -result -# } -``` +[#29598]: https://github.com/rust-lang/rust/issues/29598 -## Clobbers +------------------------ +"##, + }, + Lint { + label: "macro_metavar_expr", + description: r##"# `macro_metavar_expr` -Some instructions modify registers which might otherwise have held -different values so we use the clobbers list to indicate to the -compiler not to assume any values loaded into those registers will -stay valid. +The tracking issue for this feature is: [#83527] -```rust -# #![feature(llvm_asm)] -# #[cfg(any(target_arch = "x86", target_arch = "x86_64"))] -# fn main() { unsafe { -// Put the value 0x200 in eax: -llvm_asm!("mov $$0x200, %eax" : /* no outputs */ : /* no inputs */ : "eax"); -# } } -# #[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))] -# fn main() {} -``` +[#83527]: https://github.com/rust-lang/rust/issues/83527 -Input and output registers need not be listed since that information -is already communicated by the given constraints. Otherwise, any other -registers used either implicitly or explicitly should be listed. +------------------------ +"##, + }, + Lint { + label: "map_entry_replace", + description: r##"# `map_entry_replace` -If the assembly changes the condition code register `cc` should be -specified as one of the clobbers. Similarly, if the assembly modifies -memory, `memory` should also be specified. +The tracking issue for this feature is: [#44286] -## Options +[#44286]: https://github.com/rust-lang/rust/issues/44286 -The last section, `options` is specific to Rust. The format is comma -separated literal strings (i.e. `:"foo", "bar", "baz"`). It's used to -specify some extra info about the inline assembly: +------------------------ +"##, + }, + Lint { + label: "map_many_mut", + description: r##"# `map_many_mut` -Current valid options are: +The tracking issue for this feature is: [#97601] -1. `volatile` - specifying this is analogous to - `__asm__ __volatile__ (...)` in gcc/clang. -2. `alignstack` - certain instructions expect the stack to be - aligned a certain way (i.e. SSE) and specifying this indicates to - the compiler to insert its usual stack alignment code -3. `intel` - use intel syntax instead of the default AT&T. +[#97601]: https://github.com/rust-lang/rust/issues/97601 -```rust -# #![feature(llvm_asm)] -# #[cfg(any(target_arch = "x86", target_arch = "x86_64"))] -# fn main() { -let result: i32; -unsafe { - llvm_asm!("mov eax, 2" : "={eax}"(result) : : : "intel") -} -println!("eax is currently {}", result); -# } -# #[cfg(not(any(target_arch = "x86", target_arch = "x86_64")))] -# fn main() {} -``` +------------------------ +"##, + }, + Lint { + label: "map_try_insert", + description: r##"# `map_try_insert` -## More Information +The tracking issue for this feature is: [#82766] -The current implementation of the `llvm_asm!` macro is a direct binding to [LLVM's -inline assembler expressions][llvm-docs], so be sure to check out [their -documentation as well][llvm-docs] for more information about clobbers, -constraints, etc. +[#82766]: https://github.com/rust-lang/rust/issues/82766 -[llvm-docs]: http://llvm.org/docs/LangRef.html#inline-assembler-expressions +------------------------ "##, }, Lint { @@ -3305,6 +6219,116 @@ feature, which applied to all empty traits (without needing an opt-in). "##, }, Lint { + label: "maybe_uninit_array_assume_init", + description: r##"# `maybe_uninit_array_assume_init` + +The tracking issue for this feature is: [#96097] + +[#96097]: https://github.com/rust-lang/rust/issues/96097 + +------------------------ +"##, + }, + Lint { + label: "maybe_uninit_as_bytes", + description: r##"# `maybe_uninit_as_bytes` + +The tracking issue for this feature is: [#93092] + +[#93092]: https://github.com/rust-lang/rust/issues/93092 + +------------------------ +"##, + }, + Lint { + label: "maybe_uninit_slice", + description: r##"# `maybe_uninit_slice` + +The tracking issue for this feature is: [#63569] + +[#63569]: https://github.com/rust-lang/rust/issues/63569 + +------------------------ +"##, + }, + Lint { + label: "maybe_uninit_uninit_array", + description: r##"# `maybe_uninit_uninit_array` + +The tracking issue for this feature is: [#96097] + +[#96097]: https://github.com/rust-lang/rust/issues/96097 + +------------------------ +"##, + }, + Lint { + label: "maybe_uninit_uninit_array_transpose", + description: r##"# `maybe_uninit_uninit_array_transpose` + +The tracking issue for this feature is: [#96097] + +[#96097]: https://github.com/rust-lang/rust/issues/96097 + +------------------------ +"##, + }, + Lint { + label: "maybe_uninit_write_slice", + description: r##"# `maybe_uninit_write_slice` + +The tracking issue for this feature is: [#79995] + +[#79995]: https://github.com/rust-lang/rust/issues/79995 + +------------------------ +"##, + }, + Lint { + label: "mem_copy_fn", + description: r##"# `mem_copy_fn` + +The tracking issue for this feature is: [#98262] + +[#98262]: https://github.com/rust-lang/rust/issues/98262 + +------------------------ +"##, + }, + Lint { + label: "min_specialization", + description: r##"# `min_specialization` + +The tracking issue for this feature is: [#31844] + +[#31844]: https://github.com/rust-lang/rust/issues/31844 + +------------------------ +"##, + }, + Lint { + label: "mips_target_feature", + description: r##"# `mips_target_feature` + +The tracking issue for this feature is: [#44839] + +[#44839]: https://github.com/rust-lang/rust/issues/44839 + +------------------------ +"##, + }, + Lint { + label: "more_float_constants", + description: r##"# `more_float_constants` + +The tracking issue for this feature is: [#103883] + +[#103883]: https://github.com/rust-lang/rust/issues/103883 + +------------------------ +"##, + }, + Lint { label: "more_qualified_paths", description: r##"# `more_qualified_paths` @@ -3338,68 +6362,61 @@ impl A for Foo { "##, }, Lint { - label: "native_link_modifiers", - description: r##"# `native_link_modifiers` + label: "multiple_supertrait_upcastable", + description: r##"# `multiple_supertrait_upcastable` -The tracking issue for this feature is: [#81490] - -[#81490]: https://github.com/rust-lang/rust/issues/81490 +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. ------------------------ - -The `native_link_modifiers` feature allows you to use the `modifiers` syntax with the `#[link(..)]` attribute. - -Modifiers are specified as a comma-delimited string with each modifier prefixed with either a `+` or `-` to indicate that the modifier is enabled or disabled, respectively. The last boolean value specified for a given modifier wins. "##, }, Lint { - label: "native_link_modifiers_as_needed", - description: r##"# `native_link_modifiers_as_needed` + label: "must_not_suspend", + description: r##"# `must_not_suspend` -The tracking issue for this feature is: [#81490] +The tracking issue for this feature is: [#83310] -[#81490]: https://github.com/rust-lang/rust/issues/81490 +[#83310]: https://github.com/rust-lang/rust/issues/83310 ------------------------ - -The `native_link_modifiers_as_needed` feature allows you to use the `as-needed` modifier. - -`as-needed` is only compatible with the `dynamic` and `framework` linking kinds. Using any other kind will result in a compiler error. - -`+as-needed` means that the library will be actually linked only if it satisfies some undefined symbols at the point at which it is specified on the command line, making it similar to static libraries in this regard. - -This modifier translates to `--as-needed` for ld-like linkers, and to `-dead_strip_dylibs` / `-needed_library` / `-needed_framework` for ld64. -The modifier does nothing for linkers that don't support it (e.g. `link.exe`). - -The default for this modifier is unclear, some targets currently specify it as `+as-needed`, some do not. We may want to try making `+as-needed` a default for all targets. "##, }, Lint { - label: "native_link_modifiers_bundle", - description: r##"# `native_link_modifiers_bundle` + label: "mutex_unlock", + description: r##"# `mutex_unlock` -The tracking issue for this feature is: [#81490] +The tracking issue for this feature is: [#81872] -[#81490]: https://github.com/rust-lang/rust/issues/81490 +[#81872]: https://github.com/rust-lang/rust/issues/81872 ------------------------ +"##, + }, + Lint { + label: "mutex_unpoison", + description: r##"# `mutex_unpoison` -The `native_link_modifiers_bundle` feature allows you to use the `bundle` modifier. +The tracking issue for this feature is: [#96469] -Only compatible with the `static` linking kind. Using any other kind will result in a compiler error. +[#96469]: https://github.com/rust-lang/rust/issues/96469 -`+bundle` means objects from the static library are bundled into the produced crate (a rlib, for example) and are used from this crate later during linking of the final binary. +------------------------ +"##, + }, + Lint { + label: "naked_functions", + description: r##"# `naked_functions` -`-bundle` means the static library is included into the produced rlib "by name" and object files from it are included only during linking of the final binary, the file search by that name is also performed during final linking. +The tracking issue for this feature is: [#32408] -This modifier is supposed to supersede the `static-nobundle` linking kind defined by [RFC 1717](https://github.com/rust-lang/rfcs/pull/1717). +[#32408]: https://github.com/rust-lang/rust/issues/32408 -The default for this modifier is currently `+bundle`, but it could be changed later on some future edition boundary. +------------------------ "##, }, Lint { - label: "native_link_modifiers_verbatim", - description: r##"# `native_link_modifiers_verbatim` + label: "native_link_modifiers_as_needed", + description: r##"# `native_link_modifiers_as_needed` The tracking issue for this feature is: [#81490] @@ -3407,40 +6424,36 @@ The tracking issue for this feature is: [#81490] ------------------------ -The `native_link_modifiers_verbatim` feature allows you to use the `verbatim` modifier. +The `native_link_modifiers_as_needed` feature allows you to use the `as-needed` modifier. -`+verbatim` means that rustc itself won't add any target-specified library prefixes or suffixes (like `lib` or `.a`) to the library name, and will try its best to ask for the same thing from the linker. +`as-needed` is only compatible with the `dynamic` and `framework` linking kinds. Using any other kind will result in a compiler error. -For `ld`-like linkers rustc will use the `-l:filename` syntax (note the colon) when passing the library, so the linker won't add any prefixes or suffixes as well. -See [`-l namespec`](https://sourceware.org/binutils/docs/ld/Options.html) in ld documentation for more details. -For linkers not supporting any verbatim modifiers (e.g. `link.exe` or `ld64`) the library name will be passed as is. +`+as-needed` means that the library will be actually linked only if it satisfies some undefined symbols at the point at which it is specified on the command line, making it similar to static libraries in this regard. -The default for this modifier is `-verbatim`. +This modifier translates to `--as-needed` for ld-like linkers, and to `-dead_strip_dylibs` / `-needed_library` / `-needed_framework` for ld64. +The modifier does nothing for linkers that don't support it (e.g. `link.exe`). -This RFC changes the behavior of `raw-dylib` linking kind specified by [RFC 2627](https://github.com/rust-lang/rfcs/pull/2627). The `.dll` suffix (or other target-specified suffixes for other targets) is now added automatically. -If your DLL doesn't have the `.dll` suffix, it can be specified with `+verbatim`. +The default for this modifier is unclear, some targets currently specify it as `+as-needed`, some do not. We may want to try making `+as-needed` a default for all targets. "##, }, Lint { - label: "native_link_modifiers_whole_archive", - description: r##"# `native_link_modifiers_whole_archive` + label: "needs_panic_runtime", + description: r##"# `needs_panic_runtime` -The tracking issue for this feature is: [#81490] +The tracking issue for this feature is: [#32837] -[#81490]: https://github.com/rust-lang/rust/issues/81490 +[#32837]: https://github.com/rust-lang/rust/issues/32837 ------------------------ +"##, + }, + Lint { + label: "negative_bounds", + description: r##"# `negative_bounds` -The `native_link_modifiers_whole_archive` feature allows you to use the `whole-archive` modifier. - -Only compatible with the `static` linking kind. Using any other kind will result in a compiler error. - -`+whole-archive` means that the static library is linked as a whole archive without throwing any object files away. - -This modifier translates to `--whole-archive` for `ld`-like linkers, to `/WHOLEARCHIVE` for `link.exe`, and to `-force_load` for `ld64`. -The modifier does nothing for linkers that don't support it. +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. -The default for this modifier is `-whole-archive`. +------------------------ "##, }, Lint { @@ -3505,37 +6518,47 @@ This serves two purposes: "##, }, Lint { - label: "coverage", - description: r##"# `coverage` + label: "never_type", + description: r##"# `never_type` -The tracking issue for this feature is: [#84605] +The tracking issue for this feature is: [#35121] -[#84605]: https://github.com/rust-lang/rust/issues/84605 +[#35121]: https://github.com/rust-lang/rust/issues/35121 ---- +------------------------ +"##, + }, + Lint { + label: "never_type_fallback", + description: r##"# `never_type_fallback` -The `coverage` attribute can be used to selectively disable coverage -instrumentation in an annotated function. This might be useful to: +The tracking issue for this feature is: [#65992] -- Avoid instrumentation overhead in a performance critical function -- Avoid generating coverage for a function that is not meant to be executed, - but still target 100% coverage for the rest of the program. +[#65992]: https://github.com/rust-lang/rust/issues/65992 -## Example +------------------------ +"##, + }, + Lint { + label: "new_uninit", + description: r##"# `new_uninit` -```rust -#![feature(coverage)] +The tracking issue for this feature is: [#63291] -// `foo()` will get coverage instrumentation (by default) -fn foo() { - // ... -} +[#63291]: https://github.com/rust-lang/rust/issues/63291 -#[coverage(off)] -fn bar() { - // ... -} -``` +------------------------ +"##, + }, + Lint { + label: "no_core", + description: r##"# `no_core` + +The tracking issue for this feature is: [#29639] + +[#29639]: https://github.com/rust-lang/rust/issues/29639 + +------------------------ "##, }, Lint { @@ -3572,6 +6595,319 @@ fn foo() { "##, }, Lint { + label: "non_exhaustive_omitted_patterns_lint", + description: r##"# `non_exhaustive_omitted_patterns_lint` + +The tracking issue for this feature is: [#89554] + +[#89554]: https://github.com/rust-lang/rust/issues/89554 + +------------------------ +"##, + }, + Lint { + label: "non_lifetime_binders", + description: r##"# `non_lifetime_binders` + +The tracking issue for this feature is: [#108185] + +[#108185]: https://github.com/rust-lang/rust/issues/108185 + +------------------------ +"##, + }, + Lint { + label: "nonzero_ops", + description: r##"# `nonzero_ops` + +The tracking issue for this feature is: [#84186] + +[#84186]: https://github.com/rust-lang/rust/issues/84186 + +------------------------ +"##, + }, + Lint { + label: "noop_waker", + description: r##"# `noop_waker` + +The tracking issue for this feature is: [#98286] + +[#98286]: https://github.com/rust-lang/rust/issues/98286 + +------------------------ +"##, + }, + Lint { + label: "num_midpoint", + description: r##"# `num_midpoint` + +The tracking issue for this feature is: [#110840] + +[#110840]: https://github.com/rust-lang/rust/issues/110840 + +------------------------ +"##, + }, + Lint { + label: "numfmt", + description: r##"# `numfmt` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "object_safe_for_dispatch", + description: r##"# `object_safe_for_dispatch` + +The tracking issue for this feature is: [#43561] + +[#43561]: https://github.com/rust-lang/rust/issues/43561 + +------------------------ +"##, + }, + Lint { + label: "offset_of", + description: r##"# `offset_of` + +The tracking issue for this feature is: [#106655] + +[#106655]: https://github.com/rust-lang/rust/issues/106655 + +------------------------ +"##, + }, + Lint { + label: "omit_gdb_pretty_printer_section", + description: r##"# `omit_gdb_pretty_printer_section` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "once_cell_try", + description: r##"# `once_cell_try` + +The tracking issue for this feature is: [#109737] + +[#109737]: https://github.com/rust-lang/rust/issues/109737 + +------------------------ +"##, + }, + Lint { + label: "one_sided_range", + description: r##"# `one_sided_range` + +The tracking issue for this feature is: [#69780] + +[#69780]: https://github.com/rust-lang/rust/issues/69780 + +------------------------ +"##, + }, + Lint { + label: "optimize_attribute", + description: r##"# `optimize_attribute` + +The tracking issue for this feature is: [#54882] + +[#54882]: https://github.com/rust-lang/rust/issues/54882 + +------------------------ +"##, + }, + Lint { + label: "option_get_or_insert_default", + description: r##"# `option_get_or_insert_default` + +The tracking issue for this feature is: [#82901] + +[#82901]: https://github.com/rust-lang/rust/issues/82901 + +------------------------ +"##, + }, + Lint { + label: "option_take_if", + description: r##"# `option_take_if` + +The tracking issue for this feature is: [#98934] + +[#98934]: https://github.com/rust-lang/rust/issues/98934 + +------------------------ +"##, + }, + Lint { + label: "option_zip", + description: r##"# `option_zip` + +The tracking issue for this feature is: [#70086] + +[#70086]: https://github.com/rust-lang/rust/issues/70086 + +------------------------ +"##, + }, + Lint { + label: "panic_abort", + description: r##"# `panic_abort` + +The tracking issue for this feature is: [#32837] + +[#32837]: https://github.com/rust-lang/rust/issues/32837 + +------------------------ +"##, + }, + Lint { + label: "panic_always_abort", + description: r##"# `panic_always_abort` + +The tracking issue for this feature is: [#84438] + +[#84438]: https://github.com/rust-lang/rust/issues/84438 + +------------------------ +"##, + }, + Lint { + label: "panic_backtrace_config", + description: r##"# `panic_backtrace_config` + +The tracking issue for this feature is: [#93346] + +[#93346]: https://github.com/rust-lang/rust/issues/93346 + +------------------------ +"##, + }, + Lint { + label: "panic_can_unwind", + description: r##"# `panic_can_unwind` + +The tracking issue for this feature is: [#92988] + +[#92988]: https://github.com/rust-lang/rust/issues/92988 + +------------------------ +"##, + }, + Lint { + label: "panic_info_message", + description: r##"# `panic_info_message` + +The tracking issue for this feature is: [#66745] + +[#66745]: https://github.com/rust-lang/rust/issues/66745 + +------------------------ +"##, + }, + Lint { + label: "panic_internals", + description: r##"# `panic_internals` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "panic_runtime", + description: r##"# `panic_runtime` + +The tracking issue for this feature is: [#32837] + +[#32837]: https://github.com/rust-lang/rust/issues/32837 + +------------------------ +"##, + }, + Lint { + label: "panic_unwind", + description: r##"# `panic_unwind` + +The tracking issue for this feature is: [#32837] + +[#32837]: https://github.com/rust-lang/rust/issues/32837 + +------------------------ +"##, + }, + Lint { + label: "panic_update_hook", + description: r##"# `panic_update_hook` + +The tracking issue for this feature is: [#92649] + +[#92649]: https://github.com/rust-lang/rust/issues/92649 + +------------------------ +"##, + }, + Lint { + label: "path_file_prefix", + description: r##"# `path_file_prefix` + +The tracking issue for this feature is: [#86319] + +[#86319]: https://github.com/rust-lang/rust/issues/86319 + +------------------------ +"##, + }, + Lint { + label: "pattern", + description: r##"# `pattern` + +The tracking issue for this feature is: [#27721] + +[#27721]: https://github.com/rust-lang/rust/issues/27721 + +------------------------ +"##, + }, + Lint { + label: "peer_credentials_unix_socket", + description: r##"# `peer_credentials_unix_socket` + +The tracking issue for this feature is: [#42839] + +[#42839]: https://github.com/rust-lang/rust/issues/42839 + +------------------------ +"##, + }, + Lint { + label: "pin_deref_mut", + description: r##"# `pin_deref_mut` + +The tracking issue for this feature is: [#86918] + +[#86918]: https://github.com/rust-lang/rust/issues/86918 + +------------------------ +"##, + }, + Lint { + label: "platform_intrinsics", + description: r##"# `platform_intrinsics` + +The tracking issue for this feature is: [#27731] + +[#27731]: https://github.com/rust-lang/rust/issues/27731 + +------------------------ +"##, + }, + Lint { label: "plugin", description: r##"# `plugin` @@ -3608,24 +6944,24 @@ of a library. Plugins can extend [Rust's lint infrastructure](../../reference/attributes/diagnostics.md#lint-check-attributes) with additional checks for code style, safety, etc. Now let's write a plugin -[`lint-plugin-test.rs`](https://github.com/rust-lang/rust/blob/master/tests/ui-fulldeps/auxiliary/lint-plugin-test.rs) +[`lint-plugin-test.rs`](https://github.com/rust-lang/rust/blob/master/tests/ui-fulldeps/plugin/auxiliary/lint-plugin-test.rs) that warns about any item named `lintme`. ```rust,ignore (requires-stage-2) -#![feature(box_syntax, rustc_private)] +#![feature(rustc_private)] extern crate rustc_ast; // Load rustc as a plugin to get macros extern crate rustc_driver; -#[macro_use] extern crate rustc_lint; #[macro_use] extern crate rustc_session; -use rustc_driver::plugin::Registry; -use rustc_lint::{EarlyContext, EarlyLintPass, LintArray, LintContext, LintPass}; use rustc_ast::ast; +use rustc_driver::plugin::Registry; +use rustc_lint::{EarlyContext, EarlyLintPass, LintContext}; + declare_lint!(TEST_LINT, Warn, "Warn about items named 'lintme'"); declare_lint_pass!(Pass => [TEST_LINT]); @@ -3633,9 +6969,7 @@ declare_lint_pass!(Pass => [TEST_LINT]); impl EarlyLintPass for Pass { fn check_item(&mut self, cx: &EarlyContext, it: &ast::Item) { if it.ident.name.as_str() == "lintme" { - cx.lint(TEST_LINT, |lint| { - lint.build("item is named 'lintme'").set_span(it.span).emit() - }); + cx.lint(TEST_LINT, "item is named 'lintme'", |lint| lint.set_span(it.span)); } } } @@ -3643,7 +6977,7 @@ impl EarlyLintPass for Pass { #[no_mangle] fn __rustc_plugin_registrar(reg: &mut Registry) { reg.lint_store.register_lints(&[&TEST_LINT]); - reg.lint_store.register_early_pass(|| box Pass); + reg.lint_store.register_early_pass(|| Box::new(Pass)); } ``` @@ -3677,7 +7011,7 @@ The components of a lint plugin are: Lint passes are syntax traversals, but they run at a late stage of compilation where type information is available. `rustc`'s [built-in -lints](https://github.com/rust-lang/rust/blob/master/src/librustc_session/lint/builtin.rs) +lints](https://github.com/rust-lang/rust/blob/master/compiler/rustc_lint_defs/src/builtin.rs) mostly use the same infrastructure as lint plugins, and provide examples of how to access type information. @@ -3692,6 +7026,88 @@ including those provided by plugins loaded by `foo.rs`. "##, }, Lint { + label: "pointer_byte_offsets", + description: r##"# `pointer_byte_offsets` + +The tracking issue for this feature is: [#96283] + +[#96283]: https://github.com/rust-lang/rust/issues/96283 + +------------------------ +"##, + }, + Lint { + label: "pointer_is_aligned", + description: r##"# `pointer_is_aligned` + +The tracking issue for this feature is: [#96284] + +[#96284]: https://github.com/rust-lang/rust/issues/96284 + +------------------------ +"##, + }, + Lint { + label: "pointer_like_trait", + description: r##"# `pointer_like_trait` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "portable_simd", + description: r##"# `portable_simd` + +The tracking issue for this feature is: [#86656] + +[#86656]: https://github.com/rust-lang/rust/issues/86656 + +------------------------ +"##, + }, + Lint { + label: "powerpc_target_feature", + description: r##"# `powerpc_target_feature` + +The tracking issue for this feature is: [#44839] + +[#44839]: https://github.com/rust-lang/rust/issues/44839 + +------------------------ +"##, + }, + Lint { + label: "precise_pointer_size_matching", + description: r##"# `precise_pointer_size_matching` + +The tracking issue for this feature is: [#56354] + +[#56354]: https://github.com/rust-lang/rust/issues/56354 + +------------------------ +"##, + }, + Lint { + label: "prelude_2024", + description: r##"# `prelude_2024` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "prelude_import", + description: r##"# `prelude_import` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { label: "print_internals", description: r##"# `print_internals` @@ -3701,6 +7117,123 @@ This feature is internal to the Rust compiler and is not intended for general us "##, }, Lint { + label: "proc_macro_byte_character", + description: r##"# `proc_macro_byte_character` + +The tracking issue for this feature is: [#115268] + +[#115268]: https://github.com/rust-lang/rust/issues/115268 + +------------------------ +"##, + }, + Lint { + label: "proc_macro_def_site", + description: r##"# `proc_macro_def_site` + +The tracking issue for this feature is: [#54724] + +[#54724]: https://github.com/rust-lang/rust/issues/54724 + +------------------------ +"##, + }, + Lint { + label: "proc_macro_diagnostic", + description: r##"# `proc_macro_diagnostic` + +The tracking issue for this feature is: [#54140] + +[#54140]: https://github.com/rust-lang/rust/issues/54140 + +------------------------ +"##, + }, + Lint { + label: "proc_macro_expand", + description: r##"# `proc_macro_expand` + +The tracking issue for this feature is: [#90765] + +[#90765]: https://github.com/rust-lang/rust/issues/90765 + +------------------------ +"##, + }, + Lint { + label: "proc_macro_hygiene", + description: r##"# `proc_macro_hygiene` + +The tracking issue for this feature is: [#54727] + +[#54727]: https://github.com/rust-lang/rust/issues/54727 + +------------------------ +"##, + }, + Lint { + label: "proc_macro_internals", + description: r##"# `proc_macro_internals` + +The tracking issue for this feature is: [#27812] + +[#27812]: https://github.com/rust-lang/rust/issues/27812 + +------------------------ +"##, + }, + Lint { + label: "proc_macro_quote", + description: r##"# `proc_macro_quote` + +The tracking issue for this feature is: [#54722] + +[#54722]: https://github.com/rust-lang/rust/issues/54722 + +------------------------ +"##, + }, + Lint { + label: "proc_macro_span", + description: r##"# `proc_macro_span` + +The tracking issue for this feature is: [#54725] + +[#54725]: https://github.com/rust-lang/rust/issues/54725 + +------------------------ +"##, + }, + Lint { + label: "proc_macro_tracked_env", + description: r##"# `proc_macro_tracked_env` + +The tracking issue for this feature is: [#99515] + +[#99515]: https://github.com/rust-lang/rust/issues/99515 + +------------------------ +"##, + }, + Lint { + label: "process_exitcode_internals", + description: r##"# `process_exitcode_internals` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "process_internals", + description: r##"# `process_internals` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { label: "profiler_runtime", description: r##"# `profiler_runtime` @@ -3719,41 +7252,204 @@ This feature is internal to the Rust compiler and is not intended for general us "##, }, Lint { - label: "raw_dylib", - description: r##"# `raw_dylib` + label: "ptr_addr_eq", + description: r##"# `ptr_addr_eq` -The tracking issue for this feature is: [#58713] +The tracking issue for this feature is: [#116324] -[#58713]: https://github.com/rust-lang/rust/issues/58713 +[#116324]: https://github.com/rust-lang/rust/issues/116324 ------------------------ +"##, + }, + Lint { + label: "ptr_alignment_type", + description: r##"# `ptr_alignment_type` -The `raw_dylib` feature allows you to link against the implementations of functions in an `extern` -block without, on Windows, linking against an import library. +The tracking issue for this feature is: [#102070] -```rust,ignore (partial-example) -#![feature(raw_dylib)] +[#102070]: https://github.com/rust-lang/rust/issues/102070 -#[link(name="library", kind="raw-dylib")] -extern { - fn extern_function(x: i32); -} +------------------------ +"##, + }, + Lint { + label: "ptr_as_uninit", + description: r##"# `ptr_as_uninit` -fn main() { - unsafe { - extern_function(14); - } -} -``` +The tracking issue for this feature is: [#75402] + +[#75402]: https://github.com/rust-lang/rust/issues/75402 + +------------------------ +"##, + }, + Lint { + label: "ptr_from_ref", + description: r##"# `ptr_from_ref` + +The tracking issue for this feature is: [#106116] + +[#106116]: https://github.com/rust-lang/rust/issues/106116 + +------------------------ +"##, + }, + Lint { + label: "ptr_internals", + description: r##"# `ptr_internals` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "ptr_mask", + description: r##"# `ptr_mask` + +The tracking issue for this feature is: [#98290] + +[#98290]: https://github.com/rust-lang/rust/issues/98290 + +------------------------ +"##, + }, + Lint { + label: "ptr_metadata", + description: r##"# `ptr_metadata` + +The tracking issue for this feature is: [#81513] + +[#81513]: https://github.com/rust-lang/rust/issues/81513 + +------------------------ +"##, + }, + Lint { + label: "ptr_sub_ptr", + description: r##"# `ptr_sub_ptr` + +The tracking issue for this feature is: [#95892] + +[#95892]: https://github.com/rust-lang/rust/issues/95892 + +------------------------ +"##, + }, + Lint { + label: "ptr_to_from_bits", + description: r##"# `ptr_to_from_bits` + +The tracking issue for this feature is: [#91126] + +[#91126]: https://github.com/rust-lang/rust/issues/91126 + +------------------------ +"##, + }, + Lint { + label: "pub_crate_should_not_need_unstable_attr", + description: r##"# `pub_crate_should_not_need_unstable_attr` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "raw_os_error_ty", + description: r##"# `raw_os_error_ty` + +The tracking issue for this feature is: [#107792] + +[#107792]: https://github.com/rust-lang/rust/issues/107792 + +------------------------ +"##, + }, + Lint { + label: "raw_os_nonzero", + description: r##"# `raw_os_nonzero` + +The tracking issue for this feature is: [#82363] + +[#82363]: https://github.com/rust-lang/rust/issues/82363 -## Limitations +------------------------ +"##, + }, + Lint { + label: "raw_ref_op", + description: r##"# `raw_ref_op` + +The tracking issue for this feature is: [#64490] + +[#64490]: https://github.com/rust-lang/rust/issues/64490 + +------------------------ +"##, + }, + Lint { + label: "raw_slice_split", + description: r##"# `raw_slice_split` + +The tracking issue for this feature is: [#95595] -Currently, this feature is only supported on `-windows-msvc` targets. Non-Windows platforms don't have import -libraries, and an incompatibility between LLVM and the BFD linker means that it is not currently supported on -`-windows-gnu` targets. +[#95595]: https://github.com/rust-lang/rust/issues/95595 -On the `i686-pc-windows-msvc` target, this feature supports only the `cdecl`, `stdcall`, `system`, and `fastcall` -calling conventions. +------------------------ +"##, + }, + Lint { + label: "raw_vec_internals", + description: r##"# `raw_vec_internals` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "read_buf", + description: r##"# `read_buf` + +The tracking issue for this feature is: [#78485] + +[#78485]: https://github.com/rust-lang/rust/issues/78485 + +------------------------ +"##, + }, + Lint { + label: "ready_into_inner", + description: r##"# `ready_into_inner` + +The tracking issue for this feature is: [#101196] + +[#101196]: https://github.com/rust-lang/rust/issues/101196 + +------------------------ +"##, + }, + Lint { + label: "receiver_trait", + description: r##"# `receiver_trait` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "register_tool", + description: r##"# `register_tool` + +The tracking issue for this feature is: [#66079] + +[#66079]: https://github.com/rust-lang/rust/issues/66079 + +------------------------ "##, }, Lint { @@ -3779,6 +7475,103 @@ enum Foo { "##, }, Lint { + label: "repr_simd", + description: r##"# `repr_simd` + +The tracking issue for this feature is: [#27731] + +[#27731]: https://github.com/rust-lang/rust/issues/27731 + +------------------------ +"##, + }, + Lint { + label: "restricted_std", + description: r##"# `restricted_std` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "result_flattening", + description: r##"# `result_flattening` + +The tracking issue for this feature is: [#70142] + +[#70142]: https://github.com/rust-lang/rust/issues/70142 + +------------------------ +"##, + }, + Lint { + label: "result_option_inspect", + description: r##"# `result_option_inspect` + +The tracking issue for this feature is: [#91345] + +[#91345]: https://github.com/rust-lang/rust/issues/91345 + +------------------------ +"##, + }, + Lint { + label: "return_position_impl_trait_in_trait", + description: r##"# `return_position_impl_trait_in_trait` + +The tracking issue for this feature is: [#91611] + +[#91611]: https://github.com/rust-lang/rust/issues/91611 + +------------------------ +"##, + }, + Lint { + label: "return_type_notation", + description: r##"# `return_type_notation` + +The tracking issue for this feature is: [#109417] + +[#109417]: https://github.com/rust-lang/rust/issues/109417 + +------------------------ +"##, + }, + Lint { + label: "riscv_target_feature", + description: r##"# `riscv_target_feature` + +The tracking issue for this feature is: [#44839] + +[#44839]: https://github.com/rust-lang/rust/issues/44839 + +------------------------ +"##, + }, + Lint { + label: "round_char_boundary", + description: r##"# `round_char_boundary` + +The tracking issue for this feature is: [#93743] + +[#93743]: https://github.com/rust-lang/rust/issues/93743 + +------------------------ +"##, + }, + Lint { + label: "round_ties_even", + description: r##"# `round_ties_even` + +The tracking issue for this feature is: [#96710] + +[#96710]: https://github.com/rust-lang/rust/issues/96710 + +------------------------ +"##, + }, + Lint { label: "rt", description: r##"# `rt` @@ -3788,6 +7581,39 @@ This feature is internal to the Rust compiler and is not intended for general us "##, }, Lint { + label: "rtm_target_feature", + description: r##"# `rtm_target_feature` + +The tracking issue for this feature is: [#44839] + +[#44839]: https://github.com/rust-lang/rust/issues/44839 + +------------------------ +"##, + }, + Lint { + label: "rust_cold_cc", + description: r##"# `rust_cold_cc` + +The tracking issue for this feature is: [#97544] + +[#97544]: https://github.com/rust-lang/rust/issues/97544 + +------------------------ +"##, + }, + Lint { + label: "rustc_allow_const_fn_unstable", + description: r##"# `rustc_allow_const_fn_unstable` + +The tracking issue for this feature is: [#69399] + +[#69399]: https://github.com/rust-lang/rust/issues/69399 + +------------------------ +"##, + }, + Lint { label: "rustc_attrs", description: r##"# `rustc_attrs` @@ -3845,6 +7671,326 @@ error: aborting due to 2 previous errors "##, }, Lint { + label: "rustc_private", + description: r##"# `rustc_private` + +The tracking issue for this feature is: [#27812] + +[#27812]: https://github.com/rust-lang/rust/issues/27812 + +------------------------ +"##, + }, + Lint { + label: "rustdoc_internals", + description: r##"# `rustdoc_internals` + +The tracking issue for this feature is: [#90418] + +[#90418]: https://github.com/rust-lang/rust/issues/90418 + +------------------------ +"##, + }, + Lint { + label: "rustdoc_missing_doc_code_examples", + description: r##"# `rustdoc_missing_doc_code_examples` + +The tracking issue for this feature is: [#101730] + +[#101730]: https://github.com/rust-lang/rust/issues/101730 + +------------------------ +"##, + }, + Lint { + label: "sealed", + description: r##"# `sealed` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "seek_stream_len", + description: r##"# `seek_stream_len` + +The tracking issue for this feature is: [#59359] + +[#59359]: https://github.com/rust-lang/rust/issues/59359 + +------------------------ +"##, + }, + Lint { + label: "set_ptr_value", + description: r##"# `set_ptr_value` + +The tracking issue for this feature is: [#75091] + +[#75091]: https://github.com/rust-lang/rust/issues/75091 + +------------------------ +"##, + }, + Lint { + label: "setgroups", + description: r##"# `setgroups` + +The tracking issue for this feature is: [#90747] + +[#90747]: https://github.com/rust-lang/rust/issues/90747 + +------------------------ +"##, + }, + Lint { + label: "sgx_platform", + description: r##"# `sgx_platform` + +The tracking issue for this feature is: [#56975] + +[#56975]: https://github.com/rust-lang/rust/issues/56975 + +------------------------ +"##, + }, + Lint { + label: "simd_ffi", + description: r##"# `simd_ffi` + +The tracking issue for this feature is: [#27731] + +[#27731]: https://github.com/rust-lang/rust/issues/27731 + +------------------------ +"##, + }, + Lint { + label: "sized_type_properties", + description: r##"# `sized_type_properties` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "slice_as_chunks", + description: r##"# `slice_as_chunks` + +The tracking issue for this feature is: [#74985] + +[#74985]: https://github.com/rust-lang/rust/issues/74985 + +------------------------ +"##, + }, + Lint { + label: "slice_concat_ext", + description: r##"# `slice_concat_ext` + +The tracking issue for this feature is: [#27747] + +[#27747]: https://github.com/rust-lang/rust/issues/27747 + +------------------------ +"##, + }, + Lint { + label: "slice_concat_trait", + description: r##"# `slice_concat_trait` + +The tracking issue for this feature is: [#27747] + +[#27747]: https://github.com/rust-lang/rust/issues/27747 + +------------------------ +"##, + }, + Lint { + label: "slice_first_last_chunk", + description: r##"# `slice_first_last_chunk` + +The tracking issue for this feature is: [#111774] + +[#111774]: https://github.com/rust-lang/rust/issues/111774 + +------------------------ +"##, + }, + Lint { + label: "slice_flatten", + description: r##"# `slice_flatten` + +The tracking issue for this feature is: [#95629] + +[#95629]: https://github.com/rust-lang/rust/issues/95629 + +------------------------ +"##, + }, + Lint { + label: "slice_from_ptr_range", + description: r##"# `slice_from_ptr_range` + +The tracking issue for this feature is: [#89792] + +[#89792]: https://github.com/rust-lang/rust/issues/89792 + +------------------------ +"##, + }, + Lint { + label: "slice_group_by", + description: r##"# `slice_group_by` + +The tracking issue for this feature is: [#80552] + +[#80552]: https://github.com/rust-lang/rust/issues/80552 + +------------------------ +"##, + }, + Lint { + label: "slice_index_methods", + description: r##"# `slice_index_methods` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "slice_internals", + description: r##"# `slice_internals` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "slice_iter_mut_as_mut_slice", + description: r##"# `slice_iter_mut_as_mut_slice` + +The tracking issue for this feature is: [#93079] + +[#93079]: https://github.com/rust-lang/rust/issues/93079 + +------------------------ +"##, + }, + Lint { + label: "slice_partition_dedup", + description: r##"# `slice_partition_dedup` + +The tracking issue for this feature is: [#54279] + +[#54279]: https://github.com/rust-lang/rust/issues/54279 + +------------------------ +"##, + }, + Lint { + label: "slice_pattern", + description: r##"# `slice_pattern` + +The tracking issue for this feature is: [#56345] + +[#56345]: https://github.com/rust-lang/rust/issues/56345 + +------------------------ +"##, + }, + Lint { + label: "slice_ptr_get", + description: r##"# `slice_ptr_get` + +The tracking issue for this feature is: [#74265] + +[#74265]: https://github.com/rust-lang/rust/issues/74265 + +------------------------ +"##, + }, + Lint { + label: "slice_ptr_len", + description: r##"# `slice_ptr_len` + +The tracking issue for this feature is: [#71146] + +[#71146]: https://github.com/rust-lang/rust/issues/71146 + +------------------------ +"##, + }, + Lint { + label: "slice_range", + description: r##"# `slice_range` + +The tracking issue for this feature is: [#76393] + +[#76393]: https://github.com/rust-lang/rust/issues/76393 + +------------------------ +"##, + }, + Lint { + label: "slice_split_at_unchecked", + description: r##"# `slice_split_at_unchecked` + +The tracking issue for this feature is: [#76014] + +[#76014]: https://github.com/rust-lang/rust/issues/76014 + +------------------------ +"##, + }, + Lint { + label: "slice_swap_unchecked", + description: r##"# `slice_swap_unchecked` + +The tracking issue for this feature is: [#88539] + +[#88539]: https://github.com/rust-lang/rust/issues/88539 + +------------------------ +"##, + }, + Lint { + label: "slice_take", + description: r##"# `slice_take` + +The tracking issue for this feature is: [#62280] + +[#62280]: https://github.com/rust-lang/rust/issues/62280 + +------------------------ +"##, + }, + Lint { + label: "solid_ext", + description: r##"# `solid_ext` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "sort_floats", + description: r##"# `sort_floats` + +The tracking issue for this feature is: [#93396] + +[#93396]: https://github.com/rust-lang/rust/issues/93396 + +------------------------ +"##, + }, + Lint { label: "sort_internals", description: r##"# `sort_internals` @@ -3854,6 +8000,184 @@ This feature is internal to the Rust compiler and is not intended for general us "##, }, Lint { + label: "spec_option_partial_eq", + description: r##"# `spec_option_partial_eq` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "specialization", + description: r##"# `specialization` + +The tracking issue for this feature is: [#31844] + +[#31844]: https://github.com/rust-lang/rust/issues/31844 + +------------------------ +"##, + }, + Lint { + label: "split_array", + description: r##"# `split_array` + +The tracking issue for this feature is: [#90091] + +[#90091]: https://github.com/rust-lang/rust/issues/90091 + +------------------------ +"##, + }, + Lint { + label: "split_as_slice", + description: r##"# `split_as_slice` + +The tracking issue for this feature is: [#96137] + +[#96137]: https://github.com/rust-lang/rust/issues/96137 + +------------------------ +"##, + }, + Lint { + label: "sse4a_target_feature", + description: r##"# `sse4a_target_feature` + +The tracking issue for this feature is: [#44839] + +[#44839]: https://github.com/rust-lang/rust/issues/44839 + +------------------------ +"##, + }, + Lint { + label: "staged_api", + description: r##"# `staged_api` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "start", + description: r##"# `start` + +The tracking issue for this feature is: [#29633] + +[#29633]: https://github.com/rust-lang/rust/issues/29633 + +------------------------ + +Allows you to mark a function as the entry point of the executable, which is +necessary in `#![no_std]` environments. + +The function marked `#[start]` is passed the command line parameters in the same +format as the C main function (aside from the integer types being used). +It has to be non-generic and have the following signature: + +```rust,ignore (only-for-syntax-highlight) +# let _: +fn(isize, *const *const u8) -> isize +# ; +``` + +This feature should not be confused with the `start` *lang item* which is +defined by the `std` crate and is written `#[lang = "start"]`. + +## Usage together with the `std` crate + +`#[start]` can be used in combination with the `std` crate, in which case the +normal `main` function (which would get called from the `std` crate) won't be +used as an entry point. +The initialization code in `std` will be skipped this way. + +Example: + +```rust +#![feature(start)] + +#[start] +fn start(_argc: isize, _argv: *const *const u8) -> isize { + 0 +} +``` + +Unwinding the stack past the `#[start]` function is currently considered +Undefined Behavior (for any unwinding implementation): + +```rust,ignore (UB) +#![feature(start)] + +#[start] +fn start(_argc: isize, _argv: *const *const u8) -> isize { + std::panic::catch_unwind(|| { + panic!(); // panic safely gets caught or safely aborts execution + }); + + panic!(); // UB! + + 0 +} +``` +"##, + }, + Lint { + label: "std_internals", + description: r##"# `std_internals` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "stdio_makes_pipe", + description: r##"# `stdio_makes_pipe` + +The tracking issue for this feature is: [#98288] + +[#98288]: https://github.com/rust-lang/rust/issues/98288 + +------------------------ +"##, + }, + Lint { + label: "stdsimd", + description: r##"# `stdsimd` + +The tracking issue for this feature is: [#48556] + +[#48556]: https://github.com/rust-lang/rust/issues/48556 + +------------------------ +"##, + }, + Lint { + label: "step_trait", + description: r##"# `step_trait` + +The tracking issue for this feature is: [#42168] + +[#42168]: https://github.com/rust-lang/rust/issues/42168 + +------------------------ +"##, + }, + Lint { + label: "stmt_expr_attributes", + description: r##"# `stmt_expr_attributes` + +The tracking issue for this feature is: [#15701] + +[#15701]: https://github.com/rust-lang/rust/issues/15701 + +------------------------ +"##, + }, + Lint { label: "str_internals", description: r##"# `str_internals` @@ -3863,6 +8187,186 @@ This feature is internal to the Rust compiler and is not intended for general us "##, }, Lint { + label: "str_split_inclusive_remainder", + description: r##"# `str_split_inclusive_remainder` + +The tracking issue for this feature is: [#77998] + +[#77998]: https://github.com/rust-lang/rust/issues/77998 + +------------------------ +"##, + }, + Lint { + label: "str_split_remainder", + description: r##"# `str_split_remainder` + +The tracking issue for this feature is: [#77998] + +[#77998]: https://github.com/rust-lang/rust/issues/77998 + +------------------------ +"##, + }, + Lint { + label: "str_split_whitespace_remainder", + description: r##"# `str_split_whitespace_remainder` + +The tracking issue for this feature is: [#77998] + +[#77998]: https://github.com/rust-lang/rust/issues/77998 + +------------------------ +"##, + }, + Lint { + label: "strict_provenance", + description: r##"# `strict_provenance` + +The tracking issue for this feature is: [#95228] + +[#95228]: https://github.com/rust-lang/rust/issues/95228 +----- + +The `strict_provenance` feature allows to enable the `fuzzy_provenance_casts` and `lossy_provenance_casts` lints. +These lint on casts between integers and pointers, that are recommended against or invalid in the strict provenance model. +The same feature gate is also used for the experimental strict provenance API in `std` (actually `core`). + +## Example + +```rust +#![feature(strict_provenance)] +#![warn(fuzzy_provenance_casts)] + +fn main() { + let _dangling = 16_usize as *const u8; + //~^ WARNING: strict provenance disallows casting integer `usize` to pointer `*const u8` +} +``` +"##, + }, + Lint { + label: "strict_provenance_atomic_ptr", + description: r##"# `strict_provenance_atomic_ptr` + +The tracking issue for this feature is: [#99108] + +[#99108]: https://github.com/rust-lang/rust/issues/99108 + +------------------------ +"##, + }, + Lint { + label: "string_deref_patterns", + description: r##"# `string_deref_patterns` + +The tracking issue for this feature is: [#87121] + +[#87121]: https://github.com/rust-lang/rust/issues/87121 + +------------------------ +"##, + }, + Lint { + label: "string_extend_from_within", + description: r##"# `string_extend_from_within` + +The tracking issue for this feature is: [#103806] + +[#103806]: https://github.com/rust-lang/rust/issues/103806 + +------------------------ +"##, + }, + Lint { + label: "string_remove_matches", + description: r##"# `string_remove_matches` + +The tracking issue for this feature is: [#72826] + +[#72826]: https://github.com/rust-lang/rust/issues/72826 + +------------------------ +"##, + }, + Lint { + label: "structural_match", + description: r##"# `structural_match` + +The tracking issue for this feature is: [#31434] + +[#31434]: https://github.com/rust-lang/rust/issues/31434 + +------------------------ +"##, + }, + Lint { + label: "sync_unsafe_cell", + description: r##"# `sync_unsafe_cell` + +The tracking issue for this feature is: [#95439] + +[#95439]: https://github.com/rust-lang/rust/issues/95439 + +------------------------ +"##, + }, + Lint { + label: "target_feature_11", + description: r##"# `target_feature_11` + +The tracking issue for this feature is: [#69098] + +[#69098]: https://github.com/rust-lang/rust/issues/69098 + +------------------------ +"##, + }, + Lint { + label: "tbm_target_feature", + description: r##"# `tbm_target_feature` + +The tracking issue for this feature is: [#44839] + +[#44839]: https://github.com/rust-lang/rust/issues/44839 + +------------------------ +"##, + }, + Lint { + label: "tcp_linger", + description: r##"# `tcp_linger` + +The tracking issue for this feature is: [#88494] + +[#88494]: https://github.com/rust-lang/rust/issues/88494 + +------------------------ +"##, + }, + Lint { + label: "tcp_quickack", + description: r##"# `tcp_quickack` + +The tracking issue for this feature is: [#96256] + +[#96256]: https://github.com/rust-lang/rust/issues/96256 + +------------------------ +"##, + }, + Lint { + label: "tcplistener_into_incoming", + description: r##"# `tcplistener_into_incoming` + +The tracking issue for this feature is: [#88339] + +[#88339]: https://github.com/rust-lang/rust/issues/88339 + +------------------------ +"##, + }, + Lint { label: "test", description: r##"# `test` @@ -4025,6 +8529,57 @@ even when using either of the above. "##, }, Lint { + label: "test_2018_feature", + description: r##"# `test_2018_feature` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "test_unstable_lint", + description: r##"# `test_unstable_lint` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "thin_box", + description: r##"# `thin_box` + +The tracking issue for this feature is: [#92791] + +[#92791]: https://github.com/rust-lang/rust/issues/92791 + +------------------------ +"##, + }, + Lint { + label: "thread_id_value", + description: r##"# `thread_id_value` + +The tracking issue for this feature is: [#67939] + +[#67939]: https://github.com/rust-lang/rust/issues/67939 + +------------------------ +"##, + }, + Lint { + label: "thread_local", + description: r##"# `thread_local` + +The tracking issue for this feature is: [#29594] + +[#29594]: https://github.com/rust-lang/rust/issues/29594 + +------------------------ +"##, + }, + Lint { label: "thread_local_internals", description: r##"# `thread_local_internals` @@ -4034,6 +8589,28 @@ This feature is internal to the Rust compiler and is not intended for general us "##, }, Lint { + label: "thread_sleep_until", + description: r##"# `thread_sleep_until` + +The tracking issue for this feature is: [#113752] + +[#113752]: https://github.com/rust-lang/rust/issues/113752 + +------------------------ +"##, + }, + Lint { + label: "thread_spawn_unchecked", + description: r##"# `thread_spawn_unchecked` + +The tracking issue for this feature is: [#55132] + +[#55132]: https://github.com/rust-lang/rust/issues/55132 + +------------------------ +"##, + }, + Lint { label: "trace_macros", description: r##"# `trace_macros` @@ -4077,6 +8654,17 @@ note: trace_macro "##, }, Lint { + label: "track_path", + description: r##"# `track_path` + +The tracking issue for this feature is: [#99515] + +[#99515]: https://github.com/rust-lang/rust/issues/99515 + +------------------------ +"##, + }, + Lint { label: "trait_alias", description: r##"# `trait_alias` @@ -4146,6 +8734,28 @@ let foo: &dyn Foo = bar; "##, }, Lint { + label: "transmutability", + description: r##"# `transmutability` + +The tracking issue for this feature is: [#99571] + +[#99571]: https://github.com/rust-lang/rust/issues/99571 + +------------------------ +"##, + }, + Lint { + label: "transmute_generic_consts", + description: r##"# `transmute_generic_consts` + +The tracking issue for this feature is: [#109929] + +[#109929]: https://github.com/rust-lang/rust/issues/109929 + +------------------------ +"##, + }, + Lint { label: "transparent_unions", description: r##"# `transparent_unions` @@ -4233,6 +8843,59 @@ their application of these optimizations. "##, }, Lint { + label: "trivial_bounds", + description: r##"# `trivial_bounds` + +The tracking issue for this feature is: [#48214] + +[#48214]: https://github.com/rust-lang/rust/issues/48214 + +------------------------ +"##, + }, + Lint { + label: "trusted_len", + description: r##"# `trusted_len` + +The tracking issue for this feature is: [#37572] + +[#37572]: https://github.com/rust-lang/rust/issues/37572 + +------------------------ +"##, + }, + Lint { + label: "trusted_len_next_unchecked", + description: r##"# `trusted_len_next_unchecked` + +The tracking issue for this feature is: [#37572] + +[#37572]: https://github.com/rust-lang/rust/issues/37572 + +------------------------ +"##, + }, + Lint { + label: "trusted_random_access", + description: r##"# `trusted_random_access` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "trusted_step", + description: r##"# `trusted_step` + +The tracking issue for this feature is: [#85731] + +[#85731]: https://github.com/rust-lang/rust/issues/85731 + +------------------------ +"##, + }, + Lint { label: "try_blocks", description: r##"# `try_blocks` @@ -4267,6 +8930,92 @@ assert!(result.is_err()); "##, }, Lint { + label: "try_find", + description: r##"# `try_find` + +The tracking issue for this feature is: [#63178] + +[#63178]: https://github.com/rust-lang/rust/issues/63178 + +------------------------ +"##, + }, + Lint { + label: "try_reserve_kind", + description: r##"# `try_reserve_kind` + +The tracking issue for this feature is: [#48043] + +[#48043]: https://github.com/rust-lang/rust/issues/48043 + +------------------------ +"##, + }, + Lint { + label: "try_trait_v2", + description: r##"# `try_trait_v2` + +The tracking issue for this feature is: [#84277] + +[#84277]: https://github.com/rust-lang/rust/issues/84277 + +------------------------ +"##, + }, + Lint { + label: "try_trait_v2_residual", + description: r##"# `try_trait_v2_residual` + +The tracking issue for this feature is: [#91285] + +[#91285]: https://github.com/rust-lang/rust/issues/91285 + +------------------------ +"##, + }, + Lint { + label: "try_trait_v2_yeet", + description: r##"# `try_trait_v2_yeet` + +The tracking issue for this feature is: [#96374] + +[#96374]: https://github.com/rust-lang/rust/issues/96374 + +------------------------ +"##, + }, + Lint { + label: "tuple_trait", + description: r##"# `tuple_trait` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "type_alias_impl_trait", + description: r##"# `type_alias_impl_trait` + +The tracking issue for this feature is: [#63063] + +[#63063]: https://github.com/rust-lang/rust/issues/63063 + +------------------------ +"##, + }, + Lint { + label: "type_ascription", + description: r##"# `type_ascription` + +The tracking issue for this feature is: [#23416] + +[#23416]: https://github.com/rust-lang/rust/issues/23416 + +------------------------ +"##, + }, + Lint { label: "type_changing_struct_update", description: r##"# `type_changing_struct_update` @@ -4304,6 +9053,39 @@ fn main () { "##, }, Lint { + label: "type_name_of_val", + description: r##"# `type_name_of_val` + +The tracking issue for this feature is: [#66359] + +[#66359]: https://github.com/rust-lang/rust/issues/66359 + +------------------------ +"##, + }, + Lint { + label: "type_privacy_lints", + description: r##"# `type_privacy_lints` + +The tracking issue for this feature is: [#48054] + +[#48054]: https://github.com/rust-lang/rust/issues/48054 + +------------------------ +"##, + }, + Lint { + label: "uefi_std", + description: r##"# `uefi_std` + +The tracking issue for this feature is: [#100499] + +[#100499]: https://github.com/rust-lang/rust/issues/100499 + +------------------------ +"##, + }, + Lint { label: "unboxed_closures", description: r##"# `unboxed_closures` @@ -4319,7 +9101,7 @@ 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)] @@ -4333,6 +9115,200 @@ fn main() {} "##, }, Lint { + label: "unchecked_math", + description: r##"# `unchecked_math` + +The tracking issue for this feature is: [#85122] + +[#85122]: https://github.com/rust-lang/rust/issues/85122 + +------------------------ +"##, + }, + Lint { + label: "unicode_internals", + description: r##"# `unicode_internals` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "unique_rc_arc", + description: r##"# `unique_rc_arc` + +The tracking issue for this feature is: [#112566] + +[#112566]: https://github.com/rust-lang/rust/issues/112566 + +------------------------ +"##, + }, + Lint { + label: "unix_file_vectored_at", + description: r##"# `unix_file_vectored_at` + +The tracking issue for this feature is: [#89517] + +[#89517]: https://github.com/rust-lang/rust/issues/89517 + +------------------------ +"##, + }, + Lint { + label: "unix_set_mark", + description: r##"# `unix_set_mark` + +The tracking issue for this feature is: [#96467] + +[#96467]: https://github.com/rust-lang/rust/issues/96467 + +------------------------ +"##, + }, + Lint { + label: "unix_sigpipe", + description: r##"# `unix_sigpipe` + +The tracking issue for this feature is: [#97889] + +[#97889]: https://github.com/rust-lang/rust/issues/97889 + +--- + +The `#[unix_sigpipe = "..."]` attribute on `fn main()` can be used to specify how libstd shall setup `SIGPIPE` on Unix platforms before invoking `fn main()`. This attribute is ignored on non-Unix targets. There are three variants: +* `#[unix_sigpipe = "inherit"]` +* `#[unix_sigpipe = "sig_dfl"]` +* `#[unix_sigpipe = "sig_ign"]` + +## `#[unix_sigpipe = "inherit"]` + +Leave `SIGPIPE` untouched before entering `fn main()`. Unless the parent process has changed the default `SIGPIPE` handler from `SIG_DFL` to something else, this will behave the same as `#[unix_sigpipe = "sig_dfl"]`. + +## `#[unix_sigpipe = "sig_dfl"]` + +Set the `SIGPIPE` handler to `SIG_DFL`. This will result in your program getting killed if it tries to write to a closed pipe. This is normally what you want if your program produces textual output. + +### Example + +```rust,no_run +#![feature(unix_sigpipe)] +#[unix_sigpipe = "sig_dfl"] +fn main() { loop { println!("hello world"); } } +``` + +```bash +% ./main | head -n 1 +hello world +``` + +## `#[unix_sigpipe = "sig_ign"]` + +Set the `SIGPIPE` handler to `SIG_IGN` before invoking `fn main()`. This will result in `ErrorKind::BrokenPipe` errors if you program tries to write to a closed pipe. This is normally what you want if you for example write socket servers, socket clients, or pipe peers. + +This is what libstd has done by default since 2014. (However, see the note on child processes below.) + +### Example + +```rust,no_run +#![feature(unix_sigpipe)] +#[unix_sigpipe = "sig_ign"] +fn main() { loop { println!("hello world"); } } +``` + +```bash +% ./main | head -n 1 +hello world +thread 'main' panicked at 'failed printing to stdout: Broken pipe (os error 32)', library/std/src/io/stdio.rs:1016:9 +note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace +``` + +### Note on child processes + +When spawning child processes, the legacy Rust behavior if `#[unix_sigpipe]` is not specified is to +reset `SIGPIPE` to `SIG_DFL`. + +If `#[unix_sigpipe = "..."]` is specified, no matter what its value is, the signal disposition of +`SIGPIPE` is no longer reset. This means that the child inherits the parent's `SIGPIPE` behavior. +"##, + }, + Lint { + label: "unix_socket_ancillary_data", + description: r##"# `unix_socket_ancillary_data` + +The tracking issue for this feature is: [#76915] + +[#76915]: https://github.com/rust-lang/rust/issues/76915 + +------------------------ +"##, + }, + Lint { + label: "unix_socket_peek", + description: r##"# `unix_socket_peek` + +The tracking issue for this feature is: [#76923] + +[#76923]: https://github.com/rust-lang/rust/issues/76923 + +------------------------ +"##, + }, + Lint { + label: "unnamed_fields", + description: r##"# `unnamed_fields` + +The tracking issue for this feature is: [#49804] + +[#49804]: https://github.com/rust-lang/rust/issues/49804 + +------------------------ +"##, + }, + Lint { + label: "unsafe_cell_from_mut", + description: r##"# `unsafe_cell_from_mut` + +The tracking issue for this feature is: [#111645] + +[#111645]: https://github.com/rust-lang/rust/issues/111645 + +------------------------ +"##, + }, + Lint { + label: "unsafe_pin_internals", + description: r##"# `unsafe_pin_internals` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "unsize", + description: r##"# `unsize` + +The tracking issue for this feature is: [#18598] + +[#18598]: https://github.com/rust-lang/rust/issues/18598 + +------------------------ +"##, + }, + Lint { + label: "unsized_fn_params", + description: r##"# `unsized_fn_params` + +The tracking issue for this feature is: [#48055] + +[#48055]: https://github.com/rust-lang/rust/issues/48055 + +------------------------ +"##, + }, + Lint { label: "unsized_locals", description: r##"# `unsized_locals` @@ -4543,6 +9519,17 @@ fn main() { "##, }, Lint { + label: "unwrap_infallible", + description: r##"# `unwrap_infallible` + +The tracking issue for this feature is: [#61695] + +[#61695]: https://github.com/rust-lang/rust/issues/61695 + +------------------------ +"##, + }, + Lint { label: "update_panic_count", description: r##"# `update_panic_count` @@ -4552,6 +9539,149 @@ This feature is internal to the Rust compiler and is not intended for general us "##, }, Lint { + label: "used_with_arg", + description: r##"# `used_with_arg` + +The tracking issue for this feature is: [#93798] + +[#93798]: https://github.com/rust-lang/rust/issues/93798 + +------------------------ +"##, + }, + Lint { + label: "utf16_extra", + description: r##"# `utf16_extra` + +The tracking issue for this feature is: [#94919] + +[#94919]: https://github.com/rust-lang/rust/issues/94919 + +------------------------ +"##, + }, + Lint { + label: "utf16_extra_const", + description: r##"# `utf16_extra_const` + +The tracking issue for this feature is: [#94919] + +[#94919]: https://github.com/rust-lang/rust/issues/94919 + +------------------------ +"##, + }, + Lint { + label: "utf8_chunks", + description: r##"# `utf8_chunks` + +The tracking issue for this feature is: [#99543] + +[#99543]: https://github.com/rust-lang/rust/issues/99543 + +------------------------ +"##, + }, + Lint { + label: "variant_count", + description: r##"# `variant_count` + +The tracking issue for this feature is: [#73662] + +[#73662]: https://github.com/rust-lang/rust/issues/73662 + +------------------------ +"##, + }, + Lint { + label: "vec_into_raw_parts", + description: r##"# `vec_into_raw_parts` + +The tracking issue for this feature is: [#65816] + +[#65816]: https://github.com/rust-lang/rust/issues/65816 + +------------------------ +"##, + }, + Lint { + label: "vec_push_within_capacity", + description: r##"# `vec_push_within_capacity` + +The tracking issue for this feature is: [#100486] + +[#100486]: https://github.com/rust-lang/rust/issues/100486 + +------------------------ +"##, + }, + Lint { + label: "vec_split_at_spare", + description: r##"# `vec_split_at_spare` + +The tracking issue for this feature is: [#81944] + +[#81944]: https://github.com/rust-lang/rust/issues/81944 + +------------------------ +"##, + }, + Lint { + label: "waker_getters", + description: r##"# `waker_getters` + +The tracking issue for this feature is: [#87021] + +[#87021]: https://github.com/rust-lang/rust/issues/87021 + +------------------------ +"##, + }, + Lint { + label: "wasi_ext", + description: r##"# `wasi_ext` + +The tracking issue for this feature is: [#71213] + +[#71213]: https://github.com/rust-lang/rust/issues/71213 + +------------------------ +"##, + }, + Lint { + label: "wasm_abi", + description: r##"# `wasm_abi` + +The tracking issue for this feature is: [#83788] + +[#83788]: https://github.com/rust-lang/rust/issues/83788 + +------------------------ +"##, + }, + Lint { + label: "wasm_target_feature", + description: r##"# `wasm_target_feature` + +The tracking issue for this feature is: [#44839] + +[#44839]: https://github.com/rust-lang/rust/issues/44839 + +------------------------ +"##, + }, + Lint { + label: "windows_by_handle", + description: r##"# `windows_by_handle` + +The tracking issue for this feature is: [#63010] + +[#63010]: https://github.com/rust-lang/rust/issues/63010 + +------------------------ +"##, + }, + Lint { label: "windows_c", description: r##"# `windows_c` @@ -4579,6 +9709,59 @@ This feature is internal to the Rust compiler and is not intended for general us "##, }, Lint { + label: "windows_process_exit_code_from", + description: r##"# `windows_process_exit_code_from` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "windows_process_extensions_async_pipes", + description: r##"# `windows_process_extensions_async_pipes` + +The tracking issue for this feature is: [#98289] + +[#98289]: https://github.com/rust-lang/rust/issues/98289 + +------------------------ +"##, + }, + Lint { + label: "windows_process_extensions_force_quotes", + description: r##"# `windows_process_extensions_force_quotes` + +The tracking issue for this feature is: [#82227] + +[#82227]: https://github.com/rust-lang/rust/issues/82227 + +------------------------ +"##, + }, + Lint { + label: "windows_process_extensions_main_thread_handle", + description: r##"# `windows_process_extensions_main_thread_handle` + +The tracking issue for this feature is: [#96723] + +[#96723]: https://github.com/rust-lang/rust/issues/96723 + +------------------------ +"##, + }, + Lint { + label: "windows_process_extensions_raw_attribute", + description: r##"# `windows_process_extensions_raw_attribute` + +The tracking issue for this feature is: [#114854] + +[#114854]: https://github.com/rust-lang/rust/issues/114854 + +------------------------ +"##, + }, + Lint { label: "windows_stdio", description: r##"# `windows_stdio` @@ -4587,10 +9770,95 @@ This feature is internal to the Rust compiler and is not intended for general us ------------------------ "##, }, + Lint { + label: "with_negative_coherence", + description: r##"# `with_negative_coherence` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "wrapping_int_impl", + description: r##"# `wrapping_int_impl` + +The tracking issue for this feature is: [#32463] + +[#32463]: https://github.com/rust-lang/rust/issues/32463 + +------------------------ +"##, + }, + Lint { + label: "wrapping_next_power_of_two", + description: r##"# `wrapping_next_power_of_two` + +The tracking issue for this feature is: [#32463] + +[#32463]: https://github.com/rust-lang/rust/issues/32463 + +------------------------ +"##, + }, + Lint { + label: "write_all_vectored", + description: r##"# `write_all_vectored` + +The tracking issue for this feature is: [#70436] + +[#70436]: https://github.com/rust-lang/rust/issues/70436 + +------------------------ +"##, + }, + Lint { + label: "yeet_desugar_details", + description: r##"# `yeet_desugar_details` + +This feature has no tracking issue, and is therefore likely internal to the compiler, not being intended for general use. + +------------------------ +"##, + }, + Lint { + label: "yeet_expr", + description: r##"# `yeet_expr` + +The tracking issue for this feature is: [#96373] + +[#96373]: https://github.com/rust-lang/rust/issues/96373 + +------------------------ + +The `yeet_expr` feature adds support for `do yeet` expressions, +which can be used to early-exit from a function or `try` block. + +These are highly experimental, thus the placeholder syntax. + +```rust,edition2021 +#![feature(yeet_expr)] + +fn foo() -> Result<String, i32> { + do yeet 4; +} +assert_eq!(foo(), Err(4)); + +fn bar() -> Option<String> { + do yeet; +} +assert_eq!(bar(), None); +``` +"##, + }, ]; pub const CLIPPY_LINTS: &[Lint] = &[ Lint { + label: "clippy::absolute_paths", + description: r##"Checks for usage of items through absolute paths, like `std::env::current_dir`."##, + }, + Lint { label: "clippy::absurd_extreme_comparisons", description: r##"Checks for comparisons where one side of the relation is either the minimum or maximum value for its type and warns if it involves a @@ -4598,6 +9866,33 @@ case that is always true or always false. Only integer and boolean types are checked."##, }, Lint { + label: "clippy::alloc_instead_of_core", + description: r##"Finds items imported through `alloc` when available through `core`."##, + }, + Lint { + label: "clippy::allow_attributes", + description: r##"Checks for usage of the `#[allow]` attribute and suggests replacing it with +the `#[expect]` (See [RFC 2383](https://rust-lang.github.io/rfcs/2383-lint-reasons.html)) + +The expect attribute is still unstable and requires the `lint_reasons` +on nightly. It can be enabled by adding `#![feature(lint_reasons)]` to +the crate root. + +This lint only warns outer attributes (`#[allow]`), as inner attributes +(`#![allow]`) are usually used to enable or disable lints on a global scale."##, + }, + Lint { + label: "clippy::allow_attributes_without_reason", + description: r##"Checks for attributes that allow lints without a reason. + +(This requires the `lint_reasons` feature)"##, + }, + Lint { + label: "clippy::almost_complete_range", + description: r##"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."##, + }, + Lint { label: "clippy::almost_swapped", description: r##"Checks for `foo = bar; bar = foo` sequences."##, }, @@ -4611,22 +9906,50 @@ or respectively, suggesting to use the predefined constant."##, }, Lint { + label: "clippy::arc_with_non_send_sync", + description: r##". +This lint warns when you use `Arc` with a type that does not implement `Send` or `Sync`."##, + }, + Lint { + label: "clippy::arithmetic_side_effects", + description: r##"Checks any kind of arithmetic operation of any type. + +Operators like `+`, `-`, `*` or `<<` are usually capable of overflowing according to the [Rust +Reference](https://doc.rust-lang.org/reference/expressions/operator-expr.html#overflow), +or can panic (`/`, `%`). + +Known safe built-in types like `Wrapping` or `Saturating`, floats, operations in constant +environments, allowed types and non-constant operations that won't overflow are ignored."##, + }, + Lint { label: "clippy::as_conversions", description: r##"Checks for usage of `as` conversions. Note that this lint is specialized in linting *every single* use of `as` regardless of whether good alternatives exist or not. If you want more precise lints for `as`, please consider using these separate lints: -`unnecessary_cast`, `cast_lossless/possible_truncation/possible_wrap/precision_loss/sign_loss`, +`unnecessary_cast`, `cast_lossless/cast_possible_truncation/cast_possible_wrap/cast_precision_loss/cast_sign_loss`, `fn_to_numeric_cast(_with_truncation)`, `char_lit_as_u8`, `ref_to_mut` and `ptr_as_ptr`. There is a good explanation the reason why this lint should work in this way and how it is useful [in this issue](https://github.com/rust-lang/rust-clippy/issues/5122)."##, }, Lint { + label: "clippy::as_ptr_cast_mut", + description: r##"Checks for the result of a `&self`-taking `as_ptr` being cast to a mutable pointer"##, + }, + Lint { + label: "clippy::as_underscore", + description: r##"Checks for the usage of `as _` conversion using inferred type."##, + }, + Lint { label: "clippy::assertions_on_constants", description: r##"Checks for `assert!(true)` and `assert!(false)` calls."##, }, Lint { + label: "clippy::assertions_on_result_states", + description: r##"Checks for `assert!(r.is_ok())` or `assert!(r.is_err())` calls."##, + }, + Lint { label: "clippy::assign_op_pattern", description: r##"Checks for `a = a op b` or `a = b commutative_op a` patterns."##, @@ -4641,14 +9964,17 @@ patterns."##, that can themselves be awaited."##, }, Lint { + label: "clippy::await_holding_invalid_type", + description: r##"Allows users to configure types which should not be held across `await` +suspension points."##, + }, + Lint { label: "clippy::await_holding_lock", - description: r##"Checks for calls to await while holding a -non-async-aware MutexGuard."##, + description: r##"Checks for calls to await while holding a non-async-aware MutexGuard."##, }, Lint { label: "clippy::await_holding_refcell_ref", - description: r##"Checks for calls to await while holding a -`RefCell` `Ref` or `RefMut`."##, + description: r##"Checks for calls to await while holding a `RefCell` `Ref` or `RefMut`."##, }, Lint { label: "clippy::bad_bit_mask", @@ -4659,14 +9985,18 @@ The formula for detecting if an expression of the type `_ <bit_op> m {`!=`, `>=`, `>`, `!=`, `>=`, `>`}) can be determined from the following table: -|Comparison |Bit Op|Example |is always|Formula | -|------------|------|------------|---------|----------------------| -|`==` or `!=`| `&` |`x & 2 == 3`|`false` |`c & m != c` | -|`<` or `>=`| `&` |`x & 2 < 3` |`true` |`m < c` | -|`>` or `<=`| `&` |`x & 1 > 1` |`false` |`m <= c` | -|`==` or `!=`| `|` |`x | 1 == 0`|`false` |`c | m != c` | -|`<` or `>=`| `|` |`x | 1 < 1` |`false` |`m >= c` | -|`<=` or `>` | `|` |`x | 1 > 0` |`true` |`m > c` |"##, +|Comparison |Bit Op|Example |is always|Formula | +|------------|------|-------------|---------|----------------------| +|`==` or `!=`| `&` |`x & 2 == 3` |`false` |`c & m != c` | +|`<` or `>=`| `&` |`x & 2 < 3` |`true` |`m < c` | +|`>` or `<=`| `&` |`x & 1 > 1` |`false` |`m <= c` | +|`==` or `!=`| `\\|` |`x \\| 1 == 0`|`false` |`c \\| m != c` | +|`<` or `>=`| `\\|` |`x \\| 1 < 1` |`false` |`m >= c` | +|`<=` or `>` | `\\|` |`x \\| 1 > 0` |`true` |`m > c` |"##, + }, + Lint { + label: "clippy::big_endian_bytes", + description: r##"Checks for the usage of the `to_be_bytes` method and/or the function `from_be_bytes`."##, }, Lint { label: "clippy::bind_instead_of_map", @@ -4674,11 +10004,6 @@ table: `_.or_else(|x| Err(y))`."##, }, Lint { - label: "clippy::blacklisted_name", - description: r##"Checks for usage of blacklisted names for variables, such -as `foo`."##, - }, - Lint { label: "clippy::blanket_clippy_restriction_lints", description: r##"Checks for `warn`/`deny`/`forbid` attributes targeting the whole clippy::restriction category."##, }, @@ -4698,21 +10023,38 @@ expression, statements or conditions that use closures with blocks."##, suggest using the variable directly."##, }, Lint { + label: "clippy::bool_to_int_with_if", + description: r##"Instead of using an if statement to convert a bool to an int, +this lint suggests using a `from()` function or an `as` coercion."##, + }, + Lint { + label: "clippy::borrow_as_ptr", + description: r##"Checks for the usage of `&expr as *const T` or +`&mut expr as *mut T`, and suggest using `ptr::addr_of` or +`ptr::addr_of_mut` instead."##, + }, + Lint { label: "clippy::borrow_deref_ref", description: r##"Checks for `&*(&T)`."## }, + Lint { label: "clippy::borrow_interior_mutable_const", description: r##"Checks if `const` items which is interior mutable (e.g., contains a `Cell`, `Mutex`, `AtomicXxxx`, etc.) has been borrowed directly."##, }, Lint { label: "clippy::borrowed_box", - description: r##"Checks for use of `&Box<T>` anywhere in the code. + description: r##"Checks for usage of `&Box<T>` anywhere in the code. Check the [Box documentation](https://doc.rust-lang.org/std/boxed/index.html) for more information."##, }, Lint { label: "clippy::box_collection", - description: r##"Checks for use of `Box<T>` where T is a collection such as Vec anywhere in the code. + description: r##"Checks for usage of `Box<T>` where T is a collection such as Vec anywhere in the code. Check the [Box documentation](https://doc.rust-lang.org/std/boxed/index.html) for more information."##, }, Lint { + label: "clippy::box_default", + description: r##"checks for `Box::new(T::default())`, which is better written as +`Box::<T>::default()`."##, + }, + Lint { label: "clippy::boxed_local", description: r##"Checks for usage of `Box<T>` where an unboxed `T` would work fine."##, @@ -4727,6 +10069,11 @@ moved out of the blocks."##, description: r##"Warns if a generic shadows a built-in type."##, }, Lint { + label: "clippy::bytes_count_to_len", + description: r##"It checks for `str::bytes().count()` and suggests replacing it with +`str::len()`."##, + }, + Lint { label: "clippy::bytes_nth", description: r##"Checks for the use of `.bytes().nth()`."##, }, @@ -4741,22 +10088,41 @@ moved out of the blocks."##, and suggests to use a case-insensitive approach instead."##, }, Lint { + label: "clippy::cast_abs_to_unsigned", + description: r##"Checks for usage of the `abs()` method that cast the result to unsigned."##, + }, + Lint { + label: "clippy::cast_enum_constructor", + description: r##"Checks for casts from an enum tuple constructor to an integer."##, + }, + Lint { + label: "clippy::cast_enum_truncation", + description: r##"Checks for casts from an enum type to an integral type which will definitely truncate the +value."##, + }, + Lint { label: "clippy::cast_lossless", description: r##"Checks for casts between numerical types that may be replaced by safe conversion functions."##, }, Lint { + label: "clippy::cast_nan_to_int", + description: r##"Checks for a known NaN float being cast to an integer"##, + }, + Lint { label: "clippy::cast_possible_truncation", description: r##"Checks for casts between numerical types that may truncate large values. This is expected behavior, so the cast is `Allow` by -default."##, +default. It suggests user either explicitly ignore the lint, +or use `try_from()` and handle the truncation, default, or panic explicitly."##, }, Lint { label: "clippy::cast_possible_wrap", description: r##"Checks for casts from an unsigned type to a signed type of -the same size. Performing such a cast is a 'no-op' for the compiler, -i.e., nothing is changed at the bit level, and the binary representation of -the value is reinterpreted. This can cause wrapping if the value is too big +the same size, or possibly smaller due to target dependent integers. +Performing such a cast is a 'no-op' for the compiler, i.e., nothing is +changed at the bit level, and the binary representation of the value is +reinterpreted. This can cause wrapping if the value is too big for the target signed type. However, the cast works as defined, so this lint is `Allow` by default."##, }, @@ -4776,10 +10142,6 @@ or any 64-bit integer to `f64`."##, from a less-strictly-aligned pointer to a more-strictly-aligned pointer"##, }, Lint { - label: "clippy::cast_ref_to_mut", - description: r##"Checks for casts of `&T` to `&mut T` anywhere in the code."##, - }, - Lint { label: "clippy::cast_sign_loss", description: r##"Checks for casts from a signed to an unsigned numerical type. In this case, negative values wrap around to large positive values, @@ -4787,6 +10149,14 @@ which can be quite surprising in practice. However, as the cast works as defined, this lint is `Allow` by default."##, }, Lint { + label: "clippy::cast_slice_different_sizes", + description: r##"Checks for `as` casts between raw pointers to slices with differently sized elements."##, + }, + Lint { + label: "clippy::cast_slice_from_raw_parts", + description: r##"Checks for a raw slice being cast to a slice pointer"##, + }, + Lint { label: "clippy::char_lit_as_u8", description: r##"Checks for expressions where a character literal is cast to `u8` and suggests using a byte literal instead."##, @@ -4806,8 +10176,8 @@ if it starts with a given char."##, description: r##"Checks for explicit bounds checking when casting."##, }, Lint { - label: "clippy::clone_double_ref", - description: r##"Checks for usage of `.clone()` on an `&&T`."##, + label: "clippy::clear_with_drain", + description: r##"Checks for usage of `.drain(..)` for the sole purpose of clearing a container."##, }, Lint { label: "clippy::clone_on_copy", @@ -4821,10 +10191,9 @@ function syntax instead (e.g., `Rc::clone(foo)`)."##, }, Lint { label: "clippy::cloned_instead_of_copied", - description: r##"Checks for usages of `cloned()` on an `Iterator` or `Option` where + description: r##"Checks for usage of `cloned()` on an `Iterator` or `Option` where `copied()` could be used instead."##, }, - Lint { label: "clippy::cmp_nan", description: r##"Checks for comparisons to NaN."## }, Lint { label: "clippy::cmp_null", description: r##"This lint checks for equality comparisons with `ptr::null`"##, @@ -4857,6 +10226,15 @@ Note that this lint is not intended to find _all_ cases where nested match patte cases where merging would most likely make the code more readable."##, }, Lint { + label: "clippy::collapsible_str_replace", + description: r##"Checks for consecutive calls to `str::replace` (2 or more) +that can be collapsed into a single call."##, + }, + Lint { + label: "clippy::collection_is_never_read", + description: r##"Checks for collections that are never queried."##, + }, + Lint { label: "clippy::comparison_chain", description: r##"Checks comparison chains written with `if` that can be rewritten with `match` and `cmp`."##, @@ -4872,6 +10250,10 @@ and suggests using `.is_empty()` where applicable."##, `Iterator`."##, }, Lint { + label: "clippy::crate_in_macro_def", + description: r##"Checks for usage of `crate` as opposed to `$crate` in a macro definition."##, + }, + Lint { label: "clippy::create_dir", description: r##"Checks usage of `std::fs::create_dir` and suggest using `std::fs::create_dir_all` instead."##, }, @@ -4879,7 +10261,10 @@ and suggests using `.is_empty()` where applicable."##, label: "clippy::crosspointer_transmute", description: r##"Checks for transmutes between a type `T` and `*T`."##, }, - Lint { label: "clippy::dbg_macro", description: r##"Checks for usage of dbg!() macro."## }, + Lint { + label: "clippy::dbg_macro", + description: r##"Checks for usage of the [`dbg!`](https://doc.rust-lang.org/std/macro.dbg.html) macro."##, + }, Lint { label: "clippy::debug_assert_with_mut_call", description: r##"Checks for function/method calls with a mutable @@ -4895,6 +10280,15 @@ parameter in `debug_assert!`, `debug_assert_eq!` and `debug_assert_ne!` macros." mutable (e.g., contains a `Cell`, `Mutex`, `AtomicXxxx`, etc.)."##, }, Lint { + label: "clippy::default_constructed_unit_structs", + description: r##"Checks for construction on unit struct using `default`."##, + }, + Lint { + label: "clippy::default_instead_of_iter_empty", + description: r##"It checks for `std::iter::Empty::default()` and suggests replacing it with +`std::iter::empty()`."##, + }, + Lint { label: "clippy::default_numeric_fallback", description: r##"Checks for usage of unconstrained numeric literals which may cause default numeric fallback in type inference. @@ -4910,6 +10304,10 @@ See [RFC0212](https://github.com/rust-lang/rfcs/blob/master/text/0212-restore-in description: r##"Checks for literal calls to `Default::default()`."##, }, Lint { + label: "clippy::default_union_representation", + description: r##"Displays a warning when a union is declared with the default representation (without a `#[repr(C)]` attribute)."##, + }, + Lint { label: "clippy::deprecated_cfg_attr", description: r##"Checks for `#[cfg_attr(rustfmt, rustfmt_skip)]` and suggests to replace it with `#[rustfmt::skip]`."##, @@ -4924,22 +10322,46 @@ field that is not a valid semantic version."##, description: r##"Checks for usage of `*&` and `*&mut` in expressions."##, }, Lint { + label: "clippy::deref_by_slicing", + description: r##"Checks for slicing expressions which are equivalent to dereferencing the +value."##, + }, + Lint { label: "clippy::derivable_impls", description: r##"Detects manual `std::default::Default` implementations that are identical to a derived implementation."##, }, Lint { - label: "clippy::derive_hash_xor_eq", - description: r##"Checks for deriving `Hash` but implementing `PartialEq` -explicitly or vice versa."##, + label: "clippy::derive_ord_xor_partial_ord", + description: r##"Lints against manual `PartialOrd` and `Ord` implementations for types with a derived `Ord` +or `PartialOrd` implementation."##, }, Lint { - label: "clippy::derive_ord_xor_partial_ord", - description: r##"Checks for deriving `Ord` but implementing `PartialOrd` -explicitly or vice versa."##, + label: "clippy::derive_partial_eq_without_eq", + description: r##"Checks for types that derive `PartialEq` and could implement `Eq`."##, + }, + Lint { + label: "clippy::derived_hash_with_manual_eq", + description: r##"Lints against manual `PartialEq` implementations for types with a derived `Hash` +implementation."##, + }, + Lint { + label: "clippy::disallowed_macros", + description: r##"Denies the configured macros in clippy.toml + +Note: Even though this lint is warn-by-default, it will only trigger if +macros are defined in the clippy.toml file."##, }, Lint { label: "clippy::disallowed_methods", - description: r##"Denies the configured methods and functions in clippy.toml"##, + description: r##"Denies the configured methods and functions in clippy.toml + +Note: Even though this lint is warn-by-default, it will only trigger if +methods are defined in the clippy.toml file."##, + }, + Lint { + label: "clippy::disallowed_names", + description: r##"Checks for usage of disallowed names for variables, such +as `foo`."##, }, Lint { label: "clippy::disallowed_script_idents", @@ -4958,7 +10380,10 @@ See also: [`non_ascii_idents`]. }, Lint { label: "clippy::disallowed_types", - description: r##"Denies the configured types in clippy.toml."##, + description: r##"Denies the configured types in clippy.toml. + +Note: Even though this lint is warn-by-default, it will only trigger if +types are defined in the clippy.toml file."##, }, Lint { label: "clippy::diverging_sub_expression", @@ -4966,6 +10391,11 @@ See also: [`non_ascii_idents`]. statements."##, }, Lint { + label: "clippy::doc_link_with_quotes", + description: r##"Detects the syntax `['foo']` in documentation comments (notice quotes instead of backticks) +outside of code blocks"##, + }, + Lint { label: "clippy::doc_markdown", description: r##"Checks for the presence of `_`, `::` or camel-case words outside ticks in documentation."##, @@ -4989,14 +10419,19 @@ marked as `#[must_use]`."##, description: r##"Checks for unnecessary double parentheses."##, }, Lint { - label: "clippy::drop_copy", - description: r##"Checks for calls to `std::mem::drop` with a value -that derives the Copy trait"##, + label: "clippy::drain_collect", + description: r##"Checks for calls to `.drain()` that clear the collection, immediately followed by a call to `.collect()`. + +> Collection in this context refers to any type with a `drain` method: +> `Vec`, `VecDeque`, `BinaryHeap`, `HashSet`,`HashMap`, `String`"##, }, Lint { - label: "clippy::drop_ref", - description: r##"Checks for calls to `std::mem::drop` with a reference -instead of an owned value."##, + label: "clippy::drop_non_drop", + description: r##"Checks for calls to `std::mem::drop` with a value that does not implement `Drop`."##, + }, + Lint { + label: "clippy::duplicate_mod", + description: r##"Checks for files that are included as modules multiple times."##, }, Lint { label: "clippy::duplicate_underscore_argument", @@ -5014,6 +10449,10 @@ from other `Duration` methods."##, but without a final `else` branch."##, }, Lint { + label: "clippy::empty_drop", + description: r##"Checks for empty `Drop` implementations."##, + }, + Lint { label: "clippy::empty_enum", description: r##"Checks for `enum`s with no variants. @@ -5022,11 +10461,19 @@ nightly-only experimental API. Therefore, this lint is only triggered if the `never_type` is enabled."##, }, Lint { + label: "clippy::empty_line_after_doc_comments", + description: r##"Checks for empty lines after documenation comments."##, + }, + Lint { label: "clippy::empty_line_after_outer_attr", description: r##"Checks for empty lines after outer attributes"##, }, Lint { label: "clippy::empty_loop", description: r##"Checks for empty `loop` expressions."## }, Lint { + label: "clippy::empty_structs_with_brackets", + description: r##"Finds structs without fields (a so-called empty struct) that are declared with brackets."##, + }, + Lint { label: "clippy::enum_clike_unportable_variant", description: r##"Checks for C-like enumerations that are `repr(isize/usize)` and have values that don't fit into an `i32`."##, @@ -5052,10 +10499,18 @@ bitwise, difference and division binary operators (`==`, `>`, etc., `&&`, description: r##"Checks for erasing operations, e.g., `x * 0`."##, }, Lint { - label: "clippy::eval_order_dependence", - description: r##"Checks for a read and a write to the same variable where -whether the read occurs before or after the write depends on the evaluation -order of sub-expressions."##, + label: "clippy::err_expect", + description: r##"Checks for `.err().expect()` calls on the `Result` type."##, + }, + Lint { + label: "clippy::error_impl_error", + description: r##"Checks for types named `Error` that implement `Error`."##, + }, + Lint { + label: "clippy::excessive_nesting", + description: r##"Checks for blocks which are nested beyond a certain threshold. + +Note: Even though this lint is warn-by-default, it will only trigger if a maximum nesting level is defined in the clippy.toml file."##, }, Lint { label: "clippy::excessive_precision", @@ -5072,8 +10527,7 @@ than that supported by the underlying type."##, }, Lint { label: "clippy::exit", - description: r##"`exit()` terminates the program and doesn't provide a -stack trace."##, + description: r##"Detects calls to the `exit()` function which terminates the program."##, }, Lint { label: "clippy::expect_fun_call", @@ -5082,7 +10536,7 @@ etc., and suggests to use `unwrap_or_else` instead"##, }, Lint { label: "clippy::expect_used", - description: r##"Checks for `.expect()` calls on `Option`s and `Result`s."##, + description: r##"Checks for `.expect()` or `.expect_err()` calls on `Result`s and `.expect()` call on `Option`s."##, }, Lint { label: "clippy::expl_impl_clone_on_copy", @@ -5090,6 +10544,10 @@ etc., and suggests to use `unwrap_or_else` instead"##, types."##, }, Lint { + label: "clippy::explicit_auto_deref", + description: r##"Checks for dereferencing expressions which would be covered by auto-deref."##, + }, + Lint { label: "clippy::explicit_counter_loop", description: r##"Checks `for` loops over slices with an explicit counter and suggests the use of `.enumerate()`."##, @@ -5127,6 +10585,10 @@ replaced with `(e)print!()` / `(e)println!()`"##, anywhere else."##, }, Lint { + label: "clippy::extra_unused_type_parameters", + description: r##"Checks for type parameters in generics that are never used anywhere else."##, + }, + Lint { label: "clippy::fallible_impl_from", description: r##"Checks for impls of `From<..>` that contain `panic!()` or `unwrap()`"##, }, @@ -5144,6 +10606,10 @@ with Default::default()."##, description: r##"Nothing. This lint has been deprecated."##, }, Lint { + label: "clippy::filter_map_bool_then", + description: r##"Checks for usage of `bool::then` in `Iterator::filter_map`."##, + }, + Lint { label: "clippy::filter_map_identity", description: r##"Checks for usage of `filter_map(|x| x)`."##, }, @@ -5162,7 +10628,7 @@ with Default::default()."##, }, Lint { label: "clippy::flat_map_option", - description: r##"Checks for usages of `Iterator::flat_map()` where `filter_map()` could be + description: r##"Checks for usage of `Iterator::flat_map()` where `filter_map()` could be used instead."##, }, Lint { label: "clippy::float_arithmetic", description: r##"Checks for float arithmetic."## }, @@ -5211,18 +10677,12 @@ store address."##, ignoring either the keys or values."##, }, Lint { - label: "clippy::for_loops_over_fallibles", - description: r##"Checks for `for` loops over `Option` or `Result` values."##, + label: "clippy::forget_non_drop", + description: r##"Checks for calls to `std::mem::forget` with a value that does not implement `Drop`."##, }, Lint { - label: "clippy::forget_copy", - description: r##"Checks for calls to `std::mem::forget` with a value that -derives the Copy trait"##, - }, - Lint { - label: "clippy::forget_ref", - description: r##"Checks for calls to `std::mem::forget` with a reference -instead of an owned value."##, + label: "clippy::format_collect", + description: r##"Checks for usage of `.map(|_| format!(..)).collect::<String>()`."##, }, Lint { label: "clippy::format_in_format_args", @@ -5231,6 +10691,15 @@ formatting such as `format!` itself, `write!` or `println!`. Suggests inlining the `format!` call."##, }, Lint { + label: "clippy::format_push_string", + description: r##"Detects cases where the result of a `format!` call is +appended to an existing `String`."##, + }, + Lint { + label: "clippy::four_forward_slashes", + description: r##"Checks for outer doc comments written with 4 forward slashes (`////`)."##, + }, + Lint { label: "clippy::from_iter_instead_of_collect", description: r##"Checks for `from_iter()` function calls on types that implement the `FromIterator` trait."##, @@ -5240,6 +10709,10 @@ trait."##, description: r##"Searches for implementations of the `Into<..>` trait and suggests to implement `From<..>` instead."##, }, Lint { + label: "clippy::from_raw_with_void_ptr", + description: r##"Checks if we're passing a `c_void` raw pointer to `{Box,Rc,Arc,Weak}::from_raw(_)`"##, + }, + Lint { label: "clippy::from_str_radix_10", description: r##"Checks for function invocations of the form `primitive::from_str_radix(s, 10)`"##, }, @@ -5251,16 +10724,25 @@ used by library authors (public and internal) that target an audience where multithreaded executors are likely to be used for running these Futures."##, }, Lint { + label: "clippy::get_first", + description: r##"Checks for usage of `x.get(0)` instead of +`x.first()`."##, + }, + Lint { label: "clippy::get_last_with_len", - description: r##"Checks for using `x.get(x.len() - 1)` instead of + description: r##"Checks for usage of `x.get(x.len() - 1)` instead of `x.last()`."##, }, Lint { label: "clippy::get_unwrap", - description: r##"Checks for use of `.get().unwrap()` (or + description: r##"Checks for usage of `.get().unwrap()` (or `.get_mut().unwrap`) on a standard library type which implements `Index`"##, }, Lint { + label: "clippy::host_endian_bytes", + description: r##"Checks for the usage of the `to_ne_bytes` method and/or the function `from_ne_bytes`."##, + }, + Lint { label: "clippy::identity_op", description: r##"Checks for identity operations, e.g., `x + 0`."##, }, @@ -5285,13 +10767,21 @@ and the *else* part."##, }, Lint { label: "clippy::if_then_some_else_none", - description: r##"Checks for if-else that could be written to `bool::then`."##, + description: r##"Checks for if-else that could be written using either `bool::then` or `bool::then_some`."##, }, Lint { label: "clippy::ifs_same_cond", description: r##"Checks for consecutive `if`s with the same condition."##, }, Lint { + label: "clippy::ignored_unit_patterns", + description: r##"Checks for usage of `_` in patterns of type `()`."##, + }, + Lint { + label: "clippy::impl_trait_in_params", + description: r##"Lints when `impl Trait` is being used in a function's parameters."##, + }, + Lint { label: "clippy::implicit_clone", description: r##"Checks for the usage of `_.to_owned()`, `vec.to_vec()`, or similar when calling `_.clone()` would be clearer."##, }, @@ -5306,10 +10796,25 @@ algorithm (`SipHash`)."##, description: r##"Checks for missing return statements at the end of a block."##, }, Lint { + label: "clippy::implicit_saturating_add", + description: r##"Checks for implicit saturating addition."##, + }, + Lint { label: "clippy::implicit_saturating_sub", description: r##"Checks for implicit saturating subtraction."##, }, Lint { + label: "clippy::implied_bounds_in_impls", + description: r##"Looks for bounds in `impl Trait` in return position that are implied by other bounds. +This can happen when a trait is specified that another trait already has as a supertrait +(e.g. `fn() -> impl Deref + DerefMut<Target = i32>` has an unnecessary `Deref` bound, +because `Deref` is a supertrait of `DerefMut`)"##, + }, + Lint { + label: "clippy::impossible_comparisons", + description: r##"Checks for double comparisons that can never succeed"##, + }, + Lint { label: "clippy::imprecise_flops", description: r##"Looks for floating-point expressions that can be expressed using built-in methods to improve accuracy @@ -5343,10 +10848,10 @@ lint on constant `usize` indexing on arrays because that is handled by rustc's ` without changing the outcome. The basic structure can be seen in the following table: -|Comparison| Bit Op |Example |equals | -|----------|---------|-----------|-------| -|`>` / `<=`|`|` / `^`|`x | 2 > 3`|`x > 3`| -|`<` / `>=`|`|` / `^`|`x ^ 1 < 4`|`x < 4`|"##, +|Comparison| Bit Op |Example |equals | +|----------|----------|------------|-------| +|`>` / `<=`|`\\|` / `^`|`x \\| 2 > 3`|`x > 3`| +|`<` / `>=`|`\\|` / `^`|`x ^ 1 < 4` |`x < 4`|"##, }, Lint { label: "clippy::inefficient_to_string", @@ -5371,6 +10876,12 @@ or tuple struct where a `let` will suffice."##, description: r##"Checks for the definition of inherent methods with a signature of `to_string(&self) -> String` and if the type implementing this method also implements the `Display` trait."##, }, Lint { + label: "clippy::init_numbered_fields", + description: r##"Checks for tuple structs initialized with field syntax. +It will however not lint if a base initializer is present. +The lint will also ignore code in macros."##, + }, + Lint { label: "clippy::inline_always", description: r##"Checks for items annotated with `#[inline(always)]`, unless the annotated function is empty or simply panics."##, @@ -5395,16 +10906,6 @@ unless the annotated function is empty or simply panics."##, label: "clippy::int_plus_one", description: r##"Checks for usage of `x >= y + 1` or `x - 1 >= y` (and `<=`) in a block"##, }, - Lint { - label: "clippy::integer_arithmetic", - description: r##"Checks for integer arithmetic operations which could overflow or panic. - -Specifically, checks for any operators (`+`, `-`, `*`, `<<`, etc) which are capable -of overflowing according to the [Rust -Reference](https://doc.rust-lang.org/reference/expressions/operator-expr.html#overflow), -or which can panic (`/`, `%`). No bounds analysis or sophisticated reasoning is -attempted."##, - }, Lint { label: "clippy::integer_division", description: r##"Checks for division of integers"## }, Lint { label: "clippy::into_iter_on_ref", @@ -5412,6 +10913,12 @@ attempted."##, or `iter_mut`."##, }, Lint { + label: "clippy::into_iter_without_iter", + description: r##"This is the opposite of the `iter_without_into_iter` lint. +It looks for `IntoIterator for (&|&mut) Type` implementations without an inherent `iter` or `iter_mut` method +on the type or on any of the types in its `Deref` chain."##, + }, + Lint { label: "clippy::invalid_null_ptr_usage", description: r##"This lint checks for invalid usages of `ptr::null`."##, }, @@ -5432,10 +10939,20 @@ necessary. Only integer types are checked."##, description: r##"Checks for invisible Unicode characters in the code."##, }, Lint { + label: "clippy::is_digit_ascii_radix", + description: r##"Finds usages of [`char::is_digit`](https://doc.rust-lang.org/stable/std/primitive.char.html#method.is_digit) that +can be replaced with [`is_ascii_digit`](https://doc.rust-lang.org/stable/std/primitive.char.html#method.is_ascii_digit) or +[`is_ascii_hexdigit`](https://doc.rust-lang.org/stable/std/primitive.char.html#method.is_ascii_hexdigit)."##, + }, + Lint { label: "clippy::items_after_statements", description: r##"Checks for items declared after some statement in a block."##, }, Lint { + label: "clippy::items_after_test_module", + description: r##"Triggers if an item is declared after the testing module marked with `#[cfg(test)]`."##, + }, + Lint { label: "clippy::iter_cloned_collect", description: r##"Checks for the use of `.cloned().collect()` on slice to create a `Vec`."##, @@ -5444,6 +10961,11 @@ create a `Vec`."##, label: "clippy::iter_count", description: r##"Checks for the use of `.iter().count()`."##, }, + Lint { + label: "clippy::iter_kv_map", + description: r##"Checks for iterating a map (`HashMap` or `BTreeMap`) and +ignoring either the keys or values."##, + }, Lint { label: "clippy::iter_next_loop", description: r##"Checks for loops on `x.next()`."## }, Lint { label: "clippy::iter_next_slice", @@ -5455,7 +10977,7 @@ create a `Vec`."##, }, Lint { label: "clippy::iter_nth", - description: r##"Checks for use of `.iter().nth()` (and the related + description: r##"Checks for usage of `.iter().nth()` (and the related `.iter_mut().nth()`) on standard library types with *O*(1) element access."##, }, Lint { @@ -5463,8 +10985,37 @@ create a `Vec`."##, description: r##"Checks for the use of `iter.nth(0)`."##, }, Lint { + label: "clippy::iter_on_empty_collections", + description: r##"Checks for calls to `iter`, `iter_mut` or `into_iter` on empty collections"##, + }, + Lint { + label: "clippy::iter_on_single_items", + description: r##"Checks for calls to `iter`, `iter_mut` or `into_iter` on collections containing a single item"##, + }, + Lint { + label: "clippy::iter_out_of_bounds", + description: r##"Looks for iterator combinator calls such as `.take(x)` or `.skip(x)` +where `x` is greater than the amount of items that an iterator will produce."##, + }, + Lint { + label: "clippy::iter_overeager_cloned", + description: r##"Checks for usage of `_.cloned().<func>()` where call to `.cloned()` can be postponed."##, + }, + Lint { label: "clippy::iter_skip_next", - description: r##"Checks for use of `.skip(x).next()` on iterators."##, + description: r##"Checks for usage of `.skip(x).next()` on iterators."##, + }, + Lint { + label: "clippy::iter_skip_zero", + description: r##"Checks for usage of `.skip(0)` on iterators."##, + }, + Lint { + label: "clippy::iter_with_drain", + description: r##"Checks for usage of `.drain(..)` on `Vec` and `VecDeque` for iteration."##, + }, + Lint { + label: "clippy::iter_without_into_iter", + description: r##"Looks for `iter` and `iter_mut` methods without an associated `IntoIterator for (&|&mut) Type` implementation."##, }, Lint { label: "clippy::iterator_step_by_zero", @@ -5492,10 +11043,29 @@ are too large."##, `enum`s."##, }, Lint { + label: "clippy::large_futures", + description: r##"It checks for the size of a `Future` created by `async fn` or `async {}`."##, + }, + Lint { + label: "clippy::large_include_file", + description: r##"Checks for the inclusion of large files via `include_bytes!()` +and `include_str!()`"##, + }, + Lint { label: "clippy::large_stack_arrays", description: r##"Checks for local arrays that may be too large."##, }, Lint { + label: "clippy::large_stack_frames", + description: r##"Checks for functions that use a lot of stack space. + +This often happens when constructing a large type, such as an array with a lot of elements, +or constructing *many* smaller-but-still-large structs, or copying around a lot of large types. + +This lint is a more general version of [`large_stack_arrays`](https://rust-lang.github.io/rust-clippy/master/#large_stack_arrays) +that is intended to look at functions as a whole instead of only individual array expressions inside of a function."##, + }, + Lint { label: "clippy::large_types_passed_by_value", description: r##"Checks for functions taking arguments by value, where the argument type is `Copy` and large enough to be worth considering @@ -5519,29 +11089,42 @@ just to compare to zero, and suggests using `.is_empty()` where applicable."##, returned."##, }, Lint { - label: "clippy::let_underscore_drop", - description: r##"Checks for `let _ = <expr>` -where expr has a type that implements `Drop`"##, + label: "clippy::let_underscore_future", + description: r##"Checks for `let _ = <expr>` where the resulting type of expr implements `Future`"##, }, Lint { label: "clippy::let_underscore_lock", - description: r##"Checks for `let _ = sync_lock`. -This supports `mutex` and `rwlock` in `std::sync` and `parking_lot`."##, + description: r##"Checks for `let _ = sync_lock`. This supports `mutex` and `rwlock` in +`parking_lot`. For `std` locks see the `rustc` lint +[`let_underscore_lock`](https://doc.rust-lang.org/nightly/rustc/lints/listing/deny-by-default.html#let-underscore-lock)"##, }, Lint { label: "clippy::let_underscore_must_use", description: r##"Checks for `let _ = <expr>` where expr is `#[must_use]`"##, }, + Lint { + label: "clippy::let_underscore_untyped", + description: r##"Checks for `let _ = <expr>` without a type annotation, and suggests to either provide one, +or remove the `let` keyword altogether."##, + }, Lint { label: "clippy::let_unit_value", description: r##"Checks for binding a unit value."## }, Lint { + label: "clippy::let_with_type_underscore", + description: r##"Detects when a variable is declared with an explicit type of `_`."##, + }, + Lint { + label: "clippy::lines_filter_map_ok", + description: r##"Checks for usage of `lines.filter_map(Result::ok)` or `lines.flat_map(Result::ok)` +when `lines` has type `std::io::Lines`."##, + }, + Lint { label: "clippy::linkedlist", description: r##"Checks for usage of any `LinkedList`, suggesting to use a `Vec` or a `VecDeque` (formerly called `RingBuf`)."##, }, Lint { - label: "clippy::logic_bug", - description: r##"Checks for boolean expressions that contain terminals that -can be eliminated."##, + label: "clippy::little_endian_bytes", + description: r##"Checks for the usage of the `to_le_bytes` method and/or the function `from_le_bytes`."##, }, Lint { label: "clippy::lossy_float_literal", @@ -5565,23 +11148,74 @@ cannot be represented as the underlying type without loss."##, description: r##"It checks for manual implementations of `async` functions."##, }, Lint { + label: "clippy::manual_bits", + description: r##"Checks for usage of `std::mem::size_of::<T>() * 8` when +`T::BITS` is available."##, + }, + Lint { + label: "clippy::manual_clamp", + description: r##"Identifies good opportunities for a clamp function from std or core, and suggests using it."##, + }, + Lint { + label: "clippy::manual_filter", + description: r##"Checks for usage of `match` which could be implemented using `filter`"##, + }, + Lint { label: "clippy::manual_filter_map", description: r##"Checks for usage of `_.filter(_).map(_)` that can be written more simply as `filter_map(_)`."##, }, Lint { + label: "clippy::manual_find", + description: r##"Checks for manual implementations of Iterator::find"##, + }, + Lint { label: "clippy::manual_find_map", description: r##"Checks for usage of `_.find(_).map(_)` that can be written more simply as `find_map(_)`."##, }, Lint { label: "clippy::manual_flatten", - description: r##"Check for unnecessary `if let` usage in a for loop + description: r##"Checks for unnecessary `if let` usage in a for loop where only the `Some` or `Ok` variant of the iterator element is used."##, }, Lint { + label: "clippy::manual_hash_one", + description: r##"Checks for cases where [`BuildHasher::hash_one`] can be used. + +[`BuildHasher::hash_one`]: https://doc.rust-lang.org/std/hash/trait.BuildHasher.html#method.hash_one"##, + }, + Lint { + label: "clippy::manual_instant_elapsed", + description: r##"Lints subtraction between `Instant::now()` and another `Instant`."##, + }, + Lint { + label: "clippy::manual_is_ascii_check", + description: r##"Suggests to use dedicated built-in methods, +`is_ascii_(lowercase|uppercase|digit)` for checking on corresponding ascii range"##, + }, + Lint { + label: "clippy::manual_is_finite", + description: r##"Checks for manual `is_finite` reimplementations +(i.e., `x != <float>::INFINITY && x != <float>::NEG_INFINITY`)."##, + }, + Lint { + label: "clippy::manual_is_infinite", + description: r##"Checks for manual `is_infinite` reimplementations +(i.e., `x == <float>::INFINITY || x == <float>::NEG_INFINITY`)."##, + }, + Lint { + label: "clippy::manual_let_else", + description: r##"Warn of cases where `let...else` could be used"##, + }, + Lint { + label: "clippy::manual_main_separator_str", + description: r##"Checks for references on `std::path::MAIN_SEPARATOR.to_string()` used +to build a `&str`."##, + }, + Lint { label: "clippy::manual_map", - description: r##"Checks for usages of `match` which could be implemented using `map`"##, + description: r##"Checks for usage of `match` which could be implemented using `map`"##, }, Lint { label: "clippy::manual_memcpy", @@ -5589,6 +11223,10 @@ where only the `Some` or `Ok` variant of the iterator element is used."##, slices that could be optimized by having a memcpy."##, }, Lint { + label: "clippy::manual_next_back", + description: r##"Checks for `.rev().next()` on a `DoubleEndedIterator`"##, + }, + Lint { label: "clippy::manual_non_exhaustive", description: r##"Checks for manual implementations of the non-exhaustive pattern."##, }, @@ -5602,28 +11240,66 @@ slices that could be optimized by having a memcpy."##, be more readably expressed as `(3..8).contains(x)`."##, }, Lint { + label: "clippy::manual_range_patterns", + description: r##"Looks for combined OR patterns that are all contained in a specific range, +e.g. `6 | 4 | 5 | 9 | 7 | 8` can be rewritten as `4..=9`."##, + }, + Lint { + label: "clippy::manual_rem_euclid", + description: r##"Checks for an expression like `((x % 4) + 4) % 4` which is a common manual reimplementation +of `x.rem_euclid(4)`."##, + }, + Lint { + label: "clippy::manual_retain", + description: r##"Checks for code to be replaced by `.retain()`."##, + }, + Lint { label: "clippy::manual_saturating_arithmetic", description: r##"Checks for `.checked_add/sub(x).unwrap_or(MAX/MIN)`."##, }, Lint { + label: "clippy::manual_slice_size_calculation", + description: r##"When `a` is `&[T]`, detect `a.len() * size_of::<T>()` and suggest `size_of_val(a)` +instead."##, + }, + Lint { label: "clippy::manual_split_once", - description: r##"Checks for usages of `str::splitn(2, _)`"##, + description: r##"Checks for usage of `str::splitn(2, _)`"##, }, Lint { label: "clippy::manual_str_repeat", description: r##"Checks for manual implementations of `str::repeat`"##, }, Lint { + label: "clippy::manual_string_new", + description: r##"Checks for usage of `` to create a `String`, such as `.to_string()`, `.to_owned()`, +`String::from()` and others."##, + }, + Lint { label: "clippy::manual_strip", description: r##"Suggests using `strip_{prefix,suffix}` over `str::{starts,ends}_with` and slicing using the pattern's length."##, }, - Lint { label: "clippy::manual_swap", description: r##"Checks for manual swapping."## }, + Lint { + label: "clippy::manual_swap", + description: r##"Checks for manual swapping. + +Note that the lint will not be emitted in const blocks, as the suggestion would not be applicable."##, + }, + Lint { + label: "clippy::manual_try_fold", + description: r##"Checks for usage of `Iterator::fold` with a type that implements `Try`."##, + }, Lint { label: "clippy::manual_unwrap_or", description: r##"Finds patterns that reimplement `Option::unwrap_or` or `Result::unwrap_or`."##, }, Lint { + label: "clippy::manual_while_let_some", + description: r##"Looks for loops that check for emptiness of a `Vec` in the condition and pop an element +in the body as a separate operation."##, + }, + Lint { label: "clippy::many_single_char_names", description: r##"Checks for too many variables whose name consists of a single character."##, @@ -5640,7 +11316,7 @@ and suggests `cloned()` or `copied()` instead"##, }, Lint { label: "clippy::map_entry", - description: r##"Checks for uses of `contains_key` + `insert` on `HashMap` + description: r##"Checks for usage of `contains_key` + `insert` on `HashMap` or `BTreeMap`."##, }, Lint { @@ -5695,7 +11371,10 @@ instead. It also checks for `if let &foo = bar` blocks."##, }, Lint { label: "clippy::match_same_arms", - description: r##"Checks for `match` with identical arm bodies."##, + description: r##"Checks for `match` with identical arm bodies. + +Note: Does not lint on wildcards if the `non_exhaustive_omitted_patterns_lint` feature is +enabled and disallowed."##, }, Lint { label: "clippy::match_single_binding", @@ -5719,9 +11398,14 @@ and take drastic actions like `panic!`."##, description: r##"Checks for iteration that may be infinite."##, }, Lint { + label: "clippy::maybe_misused_cfg", + description: r##"Checks for `#[cfg(features = ...)]` and suggests to replace it with +`#[cfg(feature = ...)]`."##, + }, + Lint { label: "clippy::mem_forget", description: r##"Checks for usage of `std::mem::forget(t)` where `t` is -`Drop`."##, +`Drop` or has a field that implements `Drop`."##, }, Lint { label: "clippy::mem_replace_option_with_none", @@ -5739,6 +11423,13 @@ and take drastic actions like `panic!`."##, and `mem::replace(&mut _, mem::zeroed())`."##, }, Lint { + label: "clippy::min_ident_chars", + description: r##"Checks for idents which comprise of a single letter. + +Note: This lint can be very noisy when enabled; it may be desirable to only enable it +temporarily."##, + }, + Lint { label: "clippy::min_max", description: r##"Checks for expressions where `std::cmp::min` and `max` are used to clamp values, but switched so that the result is constant."##, @@ -5752,17 +11443,37 @@ used to clamp values, but switched so that the result is constant."##, description: r##"Checks for cfg attributes having operating systems used in target family position."##, }, Lint { + label: "clippy::mismatching_type_param_order", + description: r##"Checks for type parameters which are positioned inconsistently between +a type definition and impl block. Specifically, a parameter in an impl +block which has the same name as a parameter in the type def, but is in +a different place."##, + }, + Lint { + label: "clippy::misnamed_getters", + description: r##"Checks for getter methods that return a field that doesn't correspond +to the name of the method, when there is a field's whose name matches that of the method."##, + }, + Lint { label: "clippy::misrefactored_assign_op", description: r##"Checks for `a op= a op b` or `a op= b op a` patterns."##, }, Lint { + label: "clippy::missing_assert_message", + description: r##"Checks assertions without a custom panic message."##, + }, + Lint { + label: "clippy::missing_asserts_for_indexing", + description: r##"Checks for repeated slice indexing without asserting beforehand that the length +is greater than the largest index used to index into the slice."##, + }, + Lint { label: "clippy::missing_const_for_fn", description: r##"Suggests the use of `const` in functions and methods where possible."##, }, Lint { label: "clippy::missing_docs_in_private_items", - description: r##"Warns if there is missing doc for any documentable item -(public or private)."##, + description: r##"Warns if there is missing doc for any private documentable item"##, }, Lint { label: "clippy::missing_enforced_import_renames", @@ -5775,6 +11486,10 @@ in the `enforce-import-renames` config option."##, return a `Result` type and warns if there is no `# Errors` section."##, }, Lint { + label: "clippy::missing_fields_in_debug", + description: r##"Checks for manual [`core::fmt::Debug`](https://doc.rust-lang.org/core/fmt/trait.Debug.html) implementations that do not use all fields."##, + }, + Lint { label: "clippy::missing_inline_in_public_items", description: r##"It lints if an exported function, method, trait method with default impl, or trait method impl is not `#[inline]`."##, @@ -5789,6 +11504,17 @@ may panic and warns if there is no `# Panics` section."##, description: r##"Checks for the doc comments of publicly visible unsafe functions and warns if there is no `# Safety` section."##, }, + Lint { label: "clippy::missing_spin_loop", description: r##"Checks for empty spin loops"## }, + Lint { + label: "clippy::missing_trait_methods", + description: r##"Checks if a provided method is used implicitly by a trait +implementation. A usage example would be a wrapper where every method +should perform some operation before delegating to the inner type's +implementation. + +This lint should typically be enabled on a specific trait `impl` item +rather than globally."##, + }, Lint { label: "clippy::mistyped_literal_suffixes", description: r##"Warns for mistyped suffix in literals"##, @@ -5799,8 +11525,14 @@ unsafe functions and warns if there is no `# Safety` section."##, digits."##, }, Lint { + label: "clippy::mixed_read_write_in_expression", + description: r##"Checks for a read and a write to the same variable where +whether the read occurs before or after the write depends on the evaluation +order of sub-expressions."##, + }, + Lint { label: "clippy::mod_module_files", - description: r##"Checks that module layout uses only self named module files, bans mod.rs files."##, + description: r##"Checks that module layout uses only self named module files, bans `mod.rs` files."##, }, Lint { label: "clippy::module_inception", @@ -5818,6 +11550,7 @@ containing module's name."##, description: r##"Checks for getting the remainder of a division by one or minus one."##, }, + Lint { label: "clippy::multi_assignments", description: r##"Checks for nested assignments."## }, Lint { label: "clippy::multiple_crate_versions", description: r##"Checks to see if multiple versions of a crate are being @@ -5828,6 +11561,10 @@ used."##, description: r##"Checks for multiple inherent implementations of a struct"##, }, Lint { + label: "clippy::multiple_unsafe_ops_per_block", + description: r##"Checks for `unsafe` blocks that contain more than one unsafe operation."##, + }, + Lint { label: "clippy::must_use_candidate", description: r##"Checks for public functions that have no `#[must_use]` attribute, but return something not already marked @@ -5840,8 +11577,12 @@ unit-returning functions and methods."##, }, Lint { label: "clippy::mut_from_ref", - description: r##"This lint checks for functions that take immutable -references and return mutable ones."##, + description: r##"This lint checks for functions that take immutable references and return +mutable ones. This will not trigger if no unsafe code exists as there +are multiple safe functions which will do this transformation + +To be on the conservative side, if there's at least one mutable +reference with the output lifetime, this lint will not trigger."##, }, Lint { label: "clippy::mut_mut", @@ -5861,11 +11602,11 @@ references and return mutable ones."##, }, Lint { label: "clippy::mutex_atomic", - description: r##"Checks for usages of `Mutex<X>` where an atomic will do."##, + description: r##"Checks for usage of `Mutex<X>` where an atomic will do."##, }, Lint { label: "clippy::mutex_integer", - description: r##"Checks for usages of `Mutex<X>` where `X` is an integral + description: r##"Checks for usage of `Mutex<X>` where `X` is an integral type."##, }, Lint { label: "clippy::naive_bytecount", description: r##"Checks for naive byte counts"## }, @@ -5876,7 +11617,7 @@ specify the `Self`-type explicitly"##, }, Lint { label: "clippy::needless_bitwise_bool", - description: r##"Checks for uses of bitwise and/or operators between booleans, where performance may be improved by using + description: r##"Checks for usage of bitwise and/or operators between booleans, where performance may be improved by using a lazy and."##, }, Lint { @@ -5885,16 +11626,27 @@ a lazy and."##, false }` (or vice versa) and suggests using the condition directly."##, }, Lint { + label: "clippy::needless_bool_assign", + description: r##"Checks for expressions of the form `if c { x = true } else { x = false }` +(or vice versa) and suggest assigning the variable directly from the +condition."##, + }, + Lint { label: "clippy::needless_borrow", description: r##"Checks for address of operations (`&`) that are going to be dereferenced immediately by the compiler."##, }, Lint { label: "clippy::needless_borrowed_reference", - description: r##"Checks for bindings that destructure a reference and borrow the inner + description: r##"Checks for bindings that needlessly destructure a reference and borrow the inner value with `&ref`."##, }, Lint { + label: "clippy::needless_borrows_for_generic_args", + description: r##"Checks for borrow operations (`&`) that used as a generic argument to a +function when the borrowed value could be used."##, + }, + Lint { label: "clippy::needless_collect", description: r##"Checks for functions collecting an iterator when collect is not needed."##, @@ -5910,12 +11662,17 @@ rearrangement of code can make the code easier to understand."##, label: "clippy::needless_doctest_main", description: r##"Checks for `fn main() { .. }` in doctests"##, }, + Lint { label: "clippy::needless_else", description: r##"Checks for empty `else` branches."## }, Lint { label: "clippy::needless_for_each", description: r##"Checks for usage of `for_each` that would be more simply written as a `for` loop."##, }, Lint { + label: "clippy::needless_if", + description: r##"Checks for empty `if` branches with no else branch."##, + }, + Lint { label: "clippy::needless_late_init", description: r##"Checks for late initializations that can be replaced by a `let` statement with an initializer."##, @@ -5926,17 +11683,42 @@ with an initializer."##, relying on lifetime elision."##, }, Lint { + label: "clippy::needless_match", + description: r##"Checks for unnecessary `match` or match-like `if let` returns for `Option` and `Result` +when function signatures are the same."##, + }, + Lint { label: "clippy::needless_option_as_deref", - description: r##"Checks for no-op uses of Option::{as_deref,as_deref_mut}, + description: r##"Checks for no-op uses of `Option::{as_deref, as_deref_mut}`, for example, `Option<&T>::as_deref()` returns the same type."##, }, Lint { + label: "clippy::needless_option_take", + description: r##"Checks for calling `take` function after `as_ref`."##, + }, + Lint { + label: "clippy::needless_parens_on_range_literals", + description: r##"The lint checks for parenthesis on literals in range statements that are +superfluous."##, + }, + Lint { + label: "clippy::needless_pass_by_ref_mut", + description: r##"Check if a `&mut` function argument is actually used mutably. + +Be careful if the function is publicly reexported as it would break compatibility with +users of this function."##, + }, + Lint { label: "clippy::needless_pass_by_value", description: r##"Checks for functions taking arguments by value, but not consuming them in its body."##, }, Lint { + label: "clippy::needless_pub_self", + description: r##"Checks for usage of `pub(self)` and `pub(in self)`."##, + }, + Lint { label: "clippy::needless_question_mark", description: r##"Suggests alternatives for useless applications of `?` in terminating expressions"##, }, @@ -5946,12 +11728,24 @@ body."##, collection just to get the values by index."##, }, Lint { + label: "clippy::needless_raw_string_hashes", + description: r##"Checks for raw string literals with an unnecessary amount of hashes around them."##, + }, + Lint { + label: "clippy::needless_raw_strings", + description: r##"Checks for raw string literals where a string literal can be used instead."##, + }, + Lint { label: "clippy::needless_return", description: r##"Checks for return statements at the end of a block."##, }, Lint { + label: "clippy::needless_return_with_question_mark", + description: r##"Checks for return statements on `Err` paired with the `?` operator."##, + }, + Lint { label: "clippy::needless_splitn", - description: r##"Checks for usages of `str::splitn` (or `str::rsplitn`) where using `str::split` would be the same."##, + description: r##"Checks for usage of `str::splitn` (or `str::rsplitn`) where using `str::split` would be the same."##, }, Lint { label: "clippy::needless_update", @@ -5985,7 +11779,7 @@ This lint is not applied to structs marked with }, Lint { label: "clippy::new_without_default", - description: r##"Checks for types with a `fn new() -> Self` method and no + description: r##"Checks for public types with a `pub fn new() -> Self` method and no implementation of [`Default`](https://doc.rust-lang.org/std/default/trait.Default.html)."##, }, @@ -5994,14 +11788,34 @@ implementation of description: r##"Checks for statements which have no effect."##, }, Lint { + label: "clippy::no_effect_replace", + description: r##"Checks for `replace` statements which have no effect."##, + }, + Lint { label: "clippy::no_effect_underscore_binding", description: r##"Checks for binding to underscore prefixed variable without side-effects."##, }, Lint { + label: "clippy::no_mangle_with_rust_abi", + description: r##"Checks for Rust ABI functions with the `#[no_mangle]` attribute."##, + }, + Lint { label: "clippy::non_ascii_literal", description: r##"Checks for non-ASCII characters in string and char literals."##, }, Lint { + label: "clippy::non_canonical_clone_impl", + description: r##"Checks for non-canonical implementations of `Clone` when `Copy` is already implemented."##, + }, + Lint { + label: "clippy::non_canonical_partial_ord_impl", + description: r##"Checks for non-canonical implementations of `PartialOrd` when `Ord` is already implemented."##, + }, + Lint { + label: "clippy::non_minimal_cfg", + description: r##"Checks for `any` and `all` combinators in `cfg` with only one condition."##, + }, + Lint { label: "clippy::non_octal_unix_permissions", description: r##"Checks for non-octal values used to set Unix file permissions."##, }, @@ -6033,12 +11847,20 @@ that make no sense."##, arguments but are not marked `unsafe`."##, }, Lint { + label: "clippy::obfuscated_if_else", + description: r##"Checks for usage of `.then_some(..).unwrap_or(..)`"##, + }, + Lint { label: "clippy::octal_escapes", description: r##"Checks for `\\0` escapes in string and byte literals that look like octal character escapes in C."##, }, Lint { label: "clippy::ok_expect", description: r##"Checks for usage of `ok().expect(..)`."## }, Lint { + label: "clippy::only_used_in_recursion", + description: r##"Checks for arguments that are only used in recursion with no side-effects."##, + }, + Lint { label: "clippy::op_ref", description: r##"Checks for arguments to `==` which have their address taken to satisfy a bound @@ -6046,7 +11868,7 @@ and suggests to dereference the other argument instead"##, }, Lint { label: "clippy::option_as_ref_deref", - description: r##"Checks for usage of `_.as_ref().map(Deref::deref)` or it's aliases (such as String::as_str)."##, + description: r##"Checks for usage of `_.as_ref().map(Deref::deref)` or its aliases (such as String::as_str)."##, }, Lint { label: "clippy::option_env_unwrap", @@ -6059,7 +11881,8 @@ suggests usage of the `env!` macro."##, }, Lint { label: "clippy::option_if_let_else", - description: r##"Lints usage of `if let Some(v) = ... { y } else { x }` which is more + description: r##"Lints usage of `if let Some(v) = ... { y } else { x }` and +`match .. { Some(v) => y, None/_ => x }` which are more idiomatically done with `Option::map_or` (if the else bit is a pure expression) or `Option::map_or_else` (if the else bit is an impure expression)."##, @@ -6075,14 +11898,19 @@ or closure that returns the unit type `()`."##, }, Lint { label: "clippy::option_option", - description: r##"Checks for use of `Option<Option<_>>` in function signatures and type + description: r##"Checks for usage of `Option<Option<_>>` in function signatures and type definitions"##, }, Lint { label: "clippy::or_fun_call", description: r##"Checks for calls to `.or(foo(..))`, `.unwrap_or(foo(..))`, -etc., and suggests to use `or_else`, `unwrap_or_else`, etc., or -`unwrap_or_default` instead."##, +`.or_insert(foo(..))` etc., and suggests to use `.or_else(|| foo(..))`, +`.unwrap_or_else(|| foo(..))`, `.unwrap_or_default()` or `.or_default()` +etc. instead."##, + }, + Lint { + label: "clippy::or_then_unwrap", + description: r##"Checks for `.or(…).unwrap()` calls to Options and Results."##, }, Lint { label: "clippy::out_of_bounds_indexing", @@ -6093,25 +11921,49 @@ index."##, label: "clippy::overflow_check_conditional", description: r##"Detects classic underflow/overflow checks."##, }, + Lint { + label: "clippy::overly_complex_bool_expr", + description: r##"Checks for boolean expressions that contain terminals that +can be eliminated."##, + }, Lint { label: "clippy::panic", description: r##"Checks for usage of `panic!`."## }, Lint { label: "clippy::panic_in_result_fn", - description: r##"Checks for usage of `panic!`, `unimplemented!`, `todo!`, `unreachable!` or assertions in a function of type result."##, + description: r##"Checks for usage of `panic!` or assertions in a function of type result."##, }, Lint { label: "clippy::panicking_unwrap", description: r##"Checks for calls of `unwrap[_err]()` that will always fail."##, }, Lint { + label: "clippy::partial_pub_fields", + description: r##"Checks whether partial fields of a struct are public. + +Either make all fields of a type public, or make none of them public"##, + }, + Lint { label: "clippy::partialeq_ne_impl", description: r##"Checks for manual re-implementations of `PartialEq::ne`."##, }, Lint { + label: "clippy::partialeq_to_none", + description: r##"Checks for binary comparisons to a literal `Option::None`."##, + }, + Lint { label: "clippy::path_buf_push_overwrite", description: r##"* Checks for [push](https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.push) calls on `PathBuf` that can cause overwrites."##, }, Lint { + label: "clippy::path_ends_with_ext", + description: r##"Looks for calls to `Path::ends_with` calls where the argument looks like a file extension. + +By default, Clippy has a short list of known filenames that start with a dot +but aren't necessarily file extensions (e.g. the `.git` folder), which are allowed by default. +The `allowed-dotfiles` configuration can be used to allow additional +file extensions that Clippy should not lint."##, + }, + Lint { label: "clippy::pattern_type_mismatch", description: r##"Checks for patterns that aren't exact representations of the types they are applied to. @@ -6133,6 +11985,10 @@ this lint can still be used to highlight areas of interest and ensure a good und of ownership semantics."##, }, Lint { + label: "clippy::permissions_set_readonly_false", + description: r##"Checks for calls to `std::fs::Permissions.set_readonly` with argument `false`."##, + }, + Lint { label: "clippy::possible_missing_comma", description: r##"Checks for possible missing comma in an array. It lints if an array element is a binary operator expression and it lies on two lines."##, @@ -6148,6 +12004,11 @@ numeric literal) followed by a method call"##, }, Lint { + label: "clippy::print_in_format_impl", + description: r##"Checks for usage of `println`, `print`, `eprintln` or `eprint` in an +implementation of a formatting trait."##, + }, + Lint { label: "clippy::print_literal", description: r##"This lint warns about the use of literals as `print!`/`println!` args."##, }, @@ -6173,16 +12034,20 @@ print a newline."##, }, Lint { label: "clippy::ptr_arg", - description: r##"This lint checks for function arguments of type `&String` -or `&Vec` unless the references are mutable. It will also suggest you -replace `.clone()` calls with the appropriate `.to_owned()`/`to_string()` -calls."##, + description: r##"This lint checks for function arguments of type `&String`, `&Vec`, +`&PathBuf`, and `Cow<_>`. It will also suggest you replace `.clone()` calls +with the appropriate `.to_owned()`/`to_string()` calls."##, }, Lint { label: "clippy::ptr_as_ptr", description: r##"Checks for `as` casts between raw pointers without changing its mutability, namely `*const T` to `*const U` and `*mut T` to `*mut U`."##, }, + Lint { + label: "clippy::ptr_cast_constness", + description: r##"Checks for `as` casts between raw pointers which change its constness, namely `*const T` to +`*mut T` and `*mut T` to `*const T`."##, + }, Lint { label: "clippy::ptr_eq", description: r##"Use `std::ptr::eq` when applicable"## }, Lint { label: "clippy::ptr_offset_with_cast", @@ -6193,11 +12058,27 @@ namely `*const T` to `*const U` and `*mut T` to `*mut U`."##, label: "clippy::pub_enum_variant_names", description: r##"Nothing. This lint has been deprecated."##, }, + Lint { label: "clippy::pub_use", description: r##"Restricts the usage of `pub use ...`"## }, + Lint { + label: "clippy::pub_with_shorthand", + description: r##"Checks for usage of `pub(<loc>)` with `in`."##, + }, + Lint { + label: "clippy::pub_without_shorthand", + description: r##"Checks for usage of `pub(<loc>)` without `in`. + +Note: As you cannot write a module's path in `pub(<loc>)`, this will only trigger on +`pub(super)` and the like."##, + }, Lint { label: "clippy::question_mark", description: r##"Checks for expressions that could be replaced by the question mark operator."##, }, Lint { + label: "clippy::question_mark_used", + description: r##"Checks for expressions that use the question mark operator and rejects them."##, + }, + Lint { label: "clippy::range_minus_one", description: r##"Checks for inclusive ranges where 1 is subtracted from the upper bound, e.g., `x..=(y-1)`."##, @@ -6220,10 +12101,49 @@ upper bound, e.g., `x..(y+1)`."##, label: "clippy::rc_buffer", description: r##"Checks for `Rc<T>` and `Arc<T>` when `T` is a mutable buffer type such as `String` or `Vec`."##, }, + Lint { + label: "clippy::rc_clone_in_vec_init", + description: r##"Checks for reference-counted pointers (`Arc`, `Rc`, `rc::Weak`, and `sync::Weak`) +in `vec![elem; len]`"##, + }, Lint { label: "clippy::rc_mutex", description: r##"Checks for `Rc<Mutex<T>>`."## }, Lint { + label: "clippy::read_line_without_trim", + description: r##"Looks for calls to [`Stdin::read_line`] to read a line from the standard input +into a string, then later attempting to parse this string into a type without first trimming it, which will +always fail because the string has a trailing newline in it."##, + }, + Lint { + label: "clippy::read_zero_byte_vec", + description: r##"This lint catches reads into a zero-length `Vec`. +Especially in the case of a call to `with_capacity`, this lint warns that read +gets the number of bytes from the `Vec`'s length, not its capacity."##, + }, + Lint { + label: "clippy::readonly_write_lock", + description: r##"Looks for calls to `RwLock::write` where the lock is only used for reading."##, + }, + Lint { + label: "clippy::recursive_format_impl", + description: r##"Checks for format trait implementations (e.g. `Display`) with a recursive call to itself +which uses `self` as a parameter. +This is typically done indirectly with the `write!` macro or with `to_string()`."##, + }, + Lint { label: "clippy::redundant_allocation", - description: r##"Checks for use of redundant allocations anywhere in the code."##, + description: r##"Checks for usage of redundant allocations anywhere in the code."##, + }, + Lint { + label: "clippy::redundant_as_str", + description: r##"Checks for usage of `as_str()` on a `String`` chained with a method available on the `String` itself."##, + }, + Lint { + label: "clippy::redundant_async_block", + description: r##"Checks for `async` block that only returns `await` on a future."##, + }, + Lint { + label: "clippy::redundant_at_rest_pattern", + description: r##"Checks for `[all @ ..]` patterns."##, }, Lint { label: "clippy::redundant_clone", @@ -6247,6 +12167,10 @@ are defined."##, argument and can be replaced by referencing the method directly."##, }, Lint { + label: "clippy::redundant_comparisons", + description: r##"Checks for ineffective double comparisons against constants."##, + }, + Lint { label: "clippy::redundant_else", description: r##"Checks for `else` blocks that can be removed without changing semantics."##, }, @@ -6260,6 +12184,14 @@ argument and can be replaced by referencing the method directly."##, could be used."##, }, Lint { + label: "clippy::redundant_guards", + description: r##"Checks for unnecessary guards in match expressions."##, + }, + Lint { + label: "clippy::redundant_locals", + description: r##"Checks for redundant redefinitions of local bindings."##, + }, + Lint { label: "clippy::redundant_pattern", description: r##"Checks for patterns in the form `name @ _`."##, }, @@ -6283,19 +12215,22 @@ do not change the type."##, description: r##"Checks for constants and statics with an explicit `'static` lifetime."##, }, Lint { - label: "clippy::ref_binding_to_reference", - description: r##"Checks for `ref` bindings which create a reference to a reference."##, + label: "clippy::redundant_type_annotations", + description: r##"Warns about needless / redundant type annotations."##, }, Lint { - label: "clippy::ref_in_deref", - description: r##"Checks for references in expressions that use -auto dereference."##, + label: "clippy::ref_binding_to_reference", + description: r##"Checks for `ref` bindings which create a reference to a reference."##, }, Lint { label: "clippy::ref_option_ref", description: r##"Checks for usage of `&Option<&T>`."##, }, Lint { + label: "clippy::ref_patterns", + description: r##"Checks for usages of the `ref` keyword."##, + }, + Lint { label: "clippy::regex_macro", description: r##"Nothing. This lint has been deprecated."##, }, @@ -6314,10 +12249,19 @@ they are equivalent to `1`. (Related discussion in [rust-clippy#7306](https://gi description: r##"Nothing. This lint has been deprecated."##, }, Lint { + label: "clippy::reserve_after_initialization", + description: r##"Informs the user about a more concise way to create a vector with a known capacity."##, + }, + Lint { label: "clippy::rest_pat_in_fully_bound_structs", description: r##"Checks for unnecessary '..' pattern binding on struct when all fields are explicitly matched."##, }, Lint { + label: "clippy::result_large_err", + description: r##"Checks for functions that return `Result` with an unusually large +`Err`-variant."##, + }, + Lint { label: "clippy::result_map_or_into_option", description: r##"Checks for usage of `_.map_or(None, Some)`."##, }, @@ -6339,7 +12283,7 @@ implements `std::error::Error`."##, Lint { label: "clippy::reversed_empty_ranges", description: r##"Checks for range expressions `x..y` where both `x` and `y` -are constant and `x` is greater or equal to `y`."##, +are constant and `x` is greater to `y`. Also triggers if `x` is equal to `y` when they are conditions to a `for` loop."##, }, Lint { label: "clippy::same_functions_in_if_condition", @@ -6361,6 +12305,16 @@ one from a trait, another not from trait."##, `position()`, or `rposition()`) followed by a call to `is_some()` or `is_none()`."##, }, Lint { + label: "clippy::seek_from_current", + description: r##"Checks an argument of `seek` method of `Seek` trait +and if it start seek from `SeekFrom::Current(0)`, suggests `stream_position` instead."##, + }, + Lint { + label: "clippy::seek_to_start_instead_of_rewind", + description: r##"Checks for jumps to the start of a stream that implements `Seek` +and uses the `seek` method providing `Start` as parameter."##, + }, + Lint { label: "clippy::self_assignment", description: r##"Checks for explicit self-assignments."##, }, @@ -6370,7 +12324,7 @@ one from a trait, another not from trait."##, }, Lint { label: "clippy::self_named_module_files", - description: r##"Checks that module layout uses only mod.rs files."##, + description: r##"Checks that module layout uses only `mod.rs` files."##, }, Lint { label: "clippy::semicolon_if_nothing_returned", @@ -6378,6 +12332,15 @@ one from a trait, another not from trait."##, `()` but is not followed by a semicolon."##, }, Lint { + label: "clippy::semicolon_inside_block", + description: r##"Suggests moving the semicolon after a block to the inside of the block, after its last +expression."##, + }, + Lint { + label: "clippy::semicolon_outside_block", + description: r##"Suggests moving the semicolon from a block's final expression outside of the block."##, + }, + Lint { label: "clippy::separated_literal_suffix", description: r##"Warns if literal suffixes are separated by an underscore. To enforce separated literal suffix style, @@ -6421,8 +12384,31 @@ post](http://llogiq.github.io/2015/07/30/traits.html) for further information) instead of an inherent implementation."##, }, Lint { + label: "clippy::should_panic_without_expect", + description: r##"Checks for `#[should_panic]` attributes without specifying the expected panic message."##, + }, + Lint { + label: "clippy::significant_drop_in_scrutinee", + description: r##"Checks for temporaries returned from function calls in a match scrutinee that have the +`clippy::has_significant_drop` attribute."##, + }, + Lint { + label: "clippy::significant_drop_tightening", + description: r##"Searches for elements marked with `#[clippy::has_significant_drop]` that could be early +dropped but are in fact dropped at the end of their scopes. In other words, enforces the +tightening of their possible lifetimes."##, + }, + Lint { label: "clippy::similar_names", - description: r##"Checks for names that are very similar and thus confusing."##, + description: r##"Checks for names that are very similar and thus confusing. + +Note: this lint looks for similar names throughout each +scope. To allow it, you need to allow it on the scope +level, not on the name that is reported."##, + }, + Lint { + label: "clippy::single_call_fn", + description: r##"Checks for functions that are only used once. Does not lint tests."##, }, Lint { label: "clippy::single_char_add_str", @@ -6430,6 +12416,11 @@ information) instead of an inherent implementation."##, where `push`/`insert` with a `char` would work fine."##, }, Lint { + label: "clippy::single_char_lifetime_names", + description: r##"Checks for lifetimes with names which are one character +long."##, + }, + Lint { label: "clippy::single_char_pattern", description: r##"Checks for string methods that receive a single-character `str` as an argument, e.g., `_.split(x)`."##, @@ -6445,7 +12436,12 @@ where `push`/`insert` with a `char` would work fine."##, Lint { label: "clippy::single_match", description: r##"Checks for matches with a single arm where an `if let` -will usually suffice."##, +will usually suffice. + +This intentionally does not lint if there are comments +inside of the other arm, so as to allow the user to document +why having another explicit pattern with an empty body is necessary, +or because the comments need to be preserved for other reasons."##, }, Lint { label: "clippy::single_match_else", @@ -6453,12 +12449,21 @@ will usually suffice."##, usually suffice."##, }, Lint { + label: "clippy::single_range_in_vec_init", + description: r##"Checks for `Vec` or array initializations that contain only one range."##, + }, + Lint { label: "clippy::size_of_in_element_count", description: r##"Detects expressions where `size_of::<T>` or `size_of_val::<T>` is used as a count of elements of type `T`"##, }, Lint { + label: "clippy::size_of_ref", + description: r##"Checks for calls to `std::mem::size_of_val()` where the argument is +a reference to a reference."##, + }, + Lint { label: "clippy::skip_while_next", description: r##"Checks for usage of `_.skip_while(condition).next()`."##, }, @@ -6469,10 +12474,18 @@ count of elements of type `T`"##, Lint { label: "clippy::stable_sort_primitive", description: r##"When sorting primitive values (integers, bools, chars, as well -as arrays, slices, and tuples of such items), it is better to +as arrays, slices, and tuples of such items), it is typically better to use an unstable sort than a stable sort."##, }, Lint { + label: "clippy::std_instead_of_alloc", + description: r##"Finds items imported through `std` when available through `alloc`."##, + }, + Lint { + label: "clippy::std_instead_of_core", + description: r##"Finds items imported through `std` when available through `core`."##, + }, + Lint { label: "clippy::str_to_string", description: r##"This lint checks for `.to_string()` method calls on values of type `&str`."##, }, @@ -6502,6 +12515,10 @@ match."##, that contain only ASCII characters."##, }, Lint { + label: "clippy::string_lit_chars_any", + description: r##"Checks for `<string_lit>.chars().any(|i| i == c)`."##, + }, + Lint { label: "clippy::string_slice", description: r##"Checks for slice operations on strings"##, }, @@ -6532,10 +12549,19 @@ subtracting elements in an Add impl."##, }, Lint { label: "clippy::suspicious_assignment_formatting", - description: r##"Checks for use of the nonexistent `=*`, `=!` and `=-` + description: r##"Checks for usage of the non-existent `=*`, `=!` and `=-` operators."##, }, Lint { + label: "clippy::suspicious_command_arg_space", + description: r##"Checks for `Command::arg()` invocations that look like they +should be multiple arguments instead, such as `arg(-t ext2)`."##, + }, + Lint { + label: "clippy::suspicious_doc_comments", + description: r##"Detects the use of outer doc comments (`///`, `/**`) followed by a bang (`!`): `///!`"##, + }, + Lint { label: "clippy::suspicious_else_formatting", description: r##"Checks for formatting of `else`. It lints if the `else` is followed immediately by a newline or the `else` seems to be missing."##, @@ -6562,12 +12588,24 @@ of binary operators nearby."##, related functions with either zero or one splits."##, }, Lint { + label: "clippy::suspicious_to_owned", + description: r##"Checks for the usage of `_.to_owned()`, on a `Cow<'_, _>`."##, + }, + Lint { label: "clippy::suspicious_unary_op_formatting", description: r##"Checks the formatting of a unary operator on the right hand side of a binary operator. It lints if there is no space between the binary and unary operators, but there is a space between the unary and its operand."##, }, Lint { + label: "clippy::suspicious_xor_used_as_pow", + description: r##"Warns for a Bitwise XOR (`^`) operator being probably confused as a powering. It will not trigger if any of the numbers are not in decimal."##, + }, + Lint { + label: "clippy::swap_ptr_to_ref", + description: r##"Checks for calls to `core::mem::swap` where either parameter is derived from a pointer"##, + }, + Lint { label: "clippy::tabs_in_doc_comments", description: r##"Checks doc comments for usage of tab characters."##, }, @@ -6577,12 +12615,13 @@ but there is a space between the unary and its operand."##, assign a value in it."##, }, Lint { - label: "clippy::to_digit_is_some", - description: r##"Checks for `.to_digit(..).is_some()` on `char`s."##, + label: "clippy::tests_outside_test_module", + description: r##"Triggers when a testing function (marked with the `#[test]` attribute) isn't inside a testing module +(marked with `#[cfg(test)]`)."##, }, Lint { - label: "clippy::to_string_in_display", - description: r##"Checks for uses of `to_string()` in `Display` traits."##, + label: "clippy::to_digit_is_some", + description: r##"Checks for `.to_digit(..).is_some()` on `char`s."##, }, Lint { label: "clippy::to_string_in_format_args", @@ -6610,7 +12649,7 @@ in a macro that does formatting."##, }, Lint { label: "clippy::trait_duplication_in_bounds", - description: r##"Checks for cases where generics are being used and multiple + description: r##"Checks for cases where generics or trait objects are being used and multiple syntax specifications for trait bounds are used simultaneously."##, }, Lint { @@ -6634,6 +12673,15 @@ syntax specifications for trait bounds are used simultaneously."##, description: r##"Checks for transmutes from an integer to a float."##, }, Lint { + label: "clippy::transmute_int_to_non_zero", + description: r##"Checks for transmutes from integers to `NonZero*` types, and suggests their `new_unchecked` +method instead."##, + }, + Lint { + label: "clippy::transmute_null_to_fn", + description: r##"Checks for null function pointer creation through transmute."##, + }, + Lint { label: "clippy::transmute_num_to_bytes", description: r##"Checks for transmutes from a number to an array of `u8`"##, }, @@ -6647,6 +12695,11 @@ from a reference to a reference."##, description: r##"Checks for transmutes from a pointer to a reference."##, }, Lint { + label: "clippy::transmute_undefined_repr", + description: r##"Checks for transmutes between types which do not have a representation defined relative to +each other."##, + }, + Lint { label: "clippy::transmutes_expressible_as_ptr_casts", description: r##"Checks for transmutes that could be a pointer cast."##, }, @@ -6655,6 +12708,10 @@ from a reference to a reference."##, description: r##"Checks for transmute calls which would receive a null pointer."##, }, Lint { + label: "clippy::trim_split_whitespace", + description: r##"Warns about calling `str::trim` (or variants) before `str::split_whitespace`."##, + }, + Lint { label: "clippy::trivial_regex", description: r##"Checks for trivial [regex](https://crates.io/crates/regex) creation (with `Regex::new`, `RegexBuilder::new`, or `RegexSet::new`)."##, @@ -6665,25 +12722,51 @@ creation (with `Regex::new`, `RegexBuilder::new`, or `RegexSet::new`)."##, the argument type is `Copy` and small enough to be more efficient to always pass by value."##, }, - Lint { label: "clippy::try_err", description: r##"Checks for usages of `Err(x)?`."## }, + Lint { label: "clippy::try_err", description: r##"Checks for usage of `Err(x)?`."## }, + Lint { + label: "clippy::tuple_array_conversions", + description: r##"Checks for tuple<=>array conversions that are not done with `.into()`."##, + }, Lint { label: "clippy::type_complexity", description: r##"Checks for types used in structs, parameters and `let` declarations above a certain complexity threshold."##, }, Lint { + label: "clippy::type_id_on_box", + description: r##"Looks for calls to `<Box<dyn Any> as Any>::type_id`."##, + }, + Lint { label: "clippy::type_repetition_in_bounds", description: r##"This lint warns about unnecessary type repetitions in trait bounds"##, }, Lint { - label: "clippy::undocumented_unsafe_blocks", - description: r##"Checks for `unsafe` blocks without a `// Safety: ` comment -explaining why the unsafe operations performed inside -the block are safe."##, + label: "clippy::unchecked_duration_subtraction", + description: r##"Lints subtraction between an [`Instant`] and a [`Duration`]."##, }, Lint { - label: "clippy::undropped_manually_drops", - description: r##"Prevents the safe `std::mem::drop` function from being called on `std::mem::ManuallyDrop`."##, + label: "clippy::undocumented_unsafe_blocks", + description: r##"Checks for `unsafe` blocks and impls without a `// SAFETY: ` comment +explaining why the unsafe operations performed inside +the block are safe. + +Note the comment must appear on the line(s) preceding the unsafe block +with nothing appearing in between. The following is ok: +```rust +foo( + // SAFETY: + // This is a valid safety comment + unsafe { *x } +) +``` +But neither of these are: +```rust +// SAFETY: +// This is not a valid safety comment +foo( + /* SAFETY: Neither is this */ unsafe { *x }, +); +```"##, }, Lint { label: "clippy::unicode_not_nfc", @@ -6706,6 +12789,11 @@ This is commonly caused by calling `set_len()` right after allocating or reserving a buffer with `new()`, `default()`, `with_capacity()`, or `reserve()`."##, }, Lint { + label: "clippy::uninlined_format_args", + description: r##"Detect when a variable is not inlined in a format string, +and suggests to inline it."##, + }, + Lint { label: "clippy::unit_arg", description: r##"Checks for passing a unit value as an argument to a function without using a unit literal (`()`)."##, @@ -6723,23 +12811,40 @@ Fn(...) -> Ord where the implemented closure returns the unit type. The lint also suggests to remove the semi-colon at the end of the statement if present."##, }, Lint { + label: "clippy::unnecessary_box_returns", + description: r##"Checks for a return type containing a `Box<T>` where `T` implements `Sized` + +The lint ignores `Box<T>` where `T` is larger than `unnecessary_box_size`, +as returning a large `T` directly may be detrimental to performance."##, + }, + Lint { label: "clippy::unnecessary_cast", - description: r##"Checks for casts to the same type, casts of int literals to integer types -and casts of float literals to float types."##, + description: r##"Checks for casts to the same type, casts of int literals to integer types, casts of float +literals to float types and casts between raw pointers without changing type or constness."##, }, Lint { label: "clippy::unnecessary_filter_map", - description: r##"Checks for `filter_map` calls which could be replaced by `filter` or `map`. + description: r##"Checks for `filter_map` calls that could be replaced by `filter` or `map`. More specifically it checks if the closure provided is only performing one of the filter or map operations and suggests the appropriate option."##, }, Lint { + label: "clippy::unnecessary_find_map", + description: r##"Checks for `find_map` calls that could be replaced by `find` or `map`. More +specifically it checks if the closure provided is only performing one of the +find or map operations and suggests the appropriate option."##, + }, + Lint { label: "clippy::unnecessary_fold", - description: r##"Checks for using `fold` when a more succinct alternative exists. + description: r##"Checks for usage of `fold` when a more succinct alternative exists. Specifically, this checks for `fold`s which could be replaced by `any`, `all`, `sum` or `product`."##, }, Lint { + label: "clippy::unnecessary_join", + description: r##"Checks for usage of `.collect::<Vec<String>>().join()` on iterators."##, + }, + Lint { label: "clippy::unnecessary_lazy_evaluations", description: r##"As the counterpart to `or_fun_call`, this lint looks for unnecessary lazily evaluated closures on `Option` and `Result`. @@ -6750,7 +12855,16 @@ simpler code: - `and_then` to `and` - `or_else` to `or` - `get_or_insert_with` to `get_or_insert` - - `ok_or_else` to `ok_or`"##, + - `ok_or_else` to `ok_or` + - `then` to `then_some` (for msrv >= 1.62.0)"##, + }, + Lint { + label: "clippy::unnecessary_literal_unwrap", + description: r##"Checks for `.unwrap()` related calls on `Result`s and `Option`s that are constructed."##, + }, + Lint { + label: "clippy::unnecessary_map_on_constructor", + description: r##"Suggest removing the use of a may (or map_err) method when an Option or Result is being construted."##, }, Lint { label: "clippy::unnecessary_mut_passed", @@ -6763,15 +12877,33 @@ requires an immutable reference."##, sub-expression."##, }, Lint { + label: "clippy::unnecessary_owned_empty_strings", + description: r##"Detects cases of owned empty strings being passed as an argument to a function expecting `&str`"##, + }, + Lint { + label: "clippy::unnecessary_safety_comment", + description: r##"Checks for `// SAFETY: ` comments on safe code."##, + }, + Lint { + label: "clippy::unnecessary_safety_doc", + description: r##"Checks for the doc comments of publicly visible +safe functions and traits and warns if there is a `# Safety` section."##, + }, + Lint { label: "clippy::unnecessary_self_imports", description: r##"Checks for imports ending in `::{self}`."##, }, Lint { label: "clippy::unnecessary_sort_by", - description: r##"Detects uses of `Vec::sort_by` passing in a closure + description: r##"Checks for usage of `Vec::sort_by` passing in a closure which compares the two arguments, either directly or indirectly."##, }, Lint { + label: "clippy::unnecessary_struct_initialization", + description: r##"Checks for initialization of a `struct` by copying a base without setting +any field."##, + }, + Lint { label: "clippy::unnecessary_to_owned", description: r##"Checks for unnecessary calls to [`ToOwned::to_owned`](https://doc.rust-lang.org/std/borrow/trait.ToOwned.html#tymethod.to_owned) and other `to_owned`-like functions."##, @@ -6855,10 +12987,24 @@ types have different ABI, size or alignment."##, description: r##"Nothing. This lint has been deprecated."##, }, Lint { + label: "clippy::unused_format_specs", + description: r##"Detects [formatting parameters] that have no effect on the output of +`format!()`, `println!()` or similar macros."##, + }, + Lint { label: "clippy::unused_io_amount", description: r##"Checks for unused written/read amount."##, }, Lint { + label: "clippy::unused_peekable", + description: r##"Checks for the creation of a `peekable` iterator that is never `.peek()`ed"##, + }, + Lint { + label: "clippy::unused_rounding", + description: r##"Detects cases where a whole-number literal float is being rounded, using +the `floor`, `ceil`, or `round` methods."##, + }, + Lint { label: "clippy::unused_self", description: r##"Checks methods that contain a `self` argument but don't use it"##, }, @@ -6876,13 +13022,17 @@ by nibble or byte."##, description: r##"Checks for functions of type `Result` that contain `expect()` or `unwrap()`"##, }, Lint { - label: "clippy::unwrap_or_else_default", - description: r##"Checks for usages of `_.unwrap_or_else(Default::default)` on `Option` and -`Result` values."##, + label: "clippy::unwrap_or_default", + description: r##"Checks for usages of the following functions with an argument that constructs a default value +(e.g., `Default::default` or `String::new`): +- `unwrap_or` +- `unwrap_or_else` +- `or_insert` +- `or_insert_with`"##, }, Lint { label: "clippy::unwrap_used", - description: r##"Checks for `.unwrap()` calls on `Option`s and on `Result`s."##, + description: r##"Checks for `.unwrap()` or `.unwrap_err()` calls on `Result`s and `.unwrap()` call on `Option`s."##, }, Lint { label: "clippy::upper_case_acronyms", @@ -6890,7 +13040,7 @@ by nibble or byte."##, }, Lint { label: "clippy::use_debug", - description: r##"Checks for use of `Debug` formatting. The purpose of this + description: r##"Checks for usage of `Debug` formatting. The purpose of this lint is to catch debugging remnants."##, }, Lint { @@ -6913,10 +13063,17 @@ types before and after the call are the same."##, description: r##"Checks for `extern crate` and `use` items annotated with lint attributes. -This lint permits `#[allow(unused_imports)]`, `#[allow(deprecated)]`, -`#[allow(unreachable_pub)]`, `#[allow(clippy::wildcard_imports)]` and -`#[allow(clippy::enum_glob_use)]` on `use` items and `#[allow(unused_imports)]` on -`extern crate` items with a `#[macro_use]` attribute."##, +This lint permits lint attributes for lints emitted on the items themself. +For `use` items these lints are: +* deprecated +* unreachable_pub +* unused_imports +* clippy::enum_glob_use +* clippy::macro_use_imports +* clippy::wildcard_imports + +For `extern crate` items these lints are: +* `unused_imports` on items with `#[macro_use]`"##, }, Lint { label: "clippy::useless_conversion", @@ -6940,17 +13097,24 @@ and transmutes that could be a cast."##, }, Lint { label: "clippy::useless_vec", - description: r##"Checks for usage of `&vec![..]` when using `&[..]` would + description: r##"Checks for usage of `vec![..]` when using `[..]` would be possible."##, }, Lint { label: "clippy::vec_box", - description: r##"Checks for use of `Vec<Box<T>>` where T: Sized anywhere in the code. + description: r##"Checks for usage of `Vec<Box<T>>` where T: Sized anywhere in the code. Check the [Box documentation](https://doc.rust-lang.org/std/boxed/index.html) for more information."##, }, Lint { label: "clippy::vec_init_then_push", - description: r##"Checks for calls to `push` immediately after creating a new `Vec`."##, + description: r##"Checks for calls to `push` immediately after creating a new `Vec`. + +If the `Vec` is created using `with_capacity` this will only lint if the capacity is a +constant and the number of pushes is greater than or equal to the initial capacity. + +If the `Vec` is extended after the initial sequence of pushes and it was default initialized +then this will only lint after there were at least four pushes. This number may change in +the future."##, }, Lint { label: "clippy::vec_resize_to_zero", @@ -6963,7 +13127,7 @@ to `trailing_zeros`"##, }, Lint { label: "clippy::verbose_file_reads", - description: r##"Checks for use of File::read_to_end and File::read_to_string."##, + description: r##"Checks for usage of File::read_to_end and File::read_to_string."##, }, Lint { label: "clippy::vtable_address_comparisons", @@ -7020,18 +13184,19 @@ print a newline."##, }, Lint { label: "clippy::wrong_self_convention", - description: r##"Checks for methods with certain name prefixes and which -doesn't match how self is taken. The actual rules are: - -|Prefix |Postfix |`self` taken | `self` type | -|-------|------------|-----------------------|--------------| -|`as_` | none |`&self` or `&mut self` | any | -|`from_`| none | none | any | -|`into_`| none |`self` | any | -|`is_` | none |`&self` or none | any | -|`to_` | `_mut` |`&mut self` | any | -|`to_` | not `_mut` |`self` | `Copy` | -|`to_` | not `_mut` |`&self` | not `Copy` | + description: r##"Checks for methods with certain name prefixes or suffixes, and which +do not adhere to standard conventions regarding how `self` is taken. +The actual rules are: + +|Prefix |Postfix |`self` taken | `self` type | +|-------|------------|-------------------------------|--------------| +|`as_` | none |`&self` or `&mut self` | any | +|`from_`| none | none | any | +|`into_`| none |`self` | any | +|`is_` | none |`&mut self` or `&self` or none | any | +|`to_` | `_mut` |`&mut self` | any | +|`to_` | not `_mut` |`self` | `Copy` | +|`to_` | not `_mut` |`&self` | not `Copy` | Note: Clippy doesn't trigger methods with `to_` prefix in: - Traits definition. @@ -7086,15 +13251,18 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ LintGroup { lint: Lint { label: "clippy::complexity", - description: r##"lint group for: clippy::bind_instead_of_map, clippy::bool_comparison, clippy::borrowed_box, clippy::char_lit_as_u8, clippy::clone_on_copy, clippy::crosspointer_transmute, clippy::deprecated_cfg_attr, clippy::deref_addrof, clippy::derivable_impls, clippy::diverging_sub_expression, clippy::double_comparisons, clippy::double_parens, clippy::duration_subsec, clippy::explicit_counter_loop, clippy::explicit_write, clippy::extra_unused_lifetimes, clippy::filter_map_identity, clippy::filter_next, clippy::flat_map_identity, clippy::get_last_with_len, clippy::identity_op, clippy::inspect_for_each, clippy::int_plus_one, clippy::iter_count, clippy::manual_filter_map, clippy::manual_find_map, clippy::manual_flatten, clippy::manual_split_once, clippy::manual_strip, clippy::manual_swap, clippy::manual_unwrap_or, clippy::map_flatten, clippy::map_identity, clippy::match_as_ref, clippy::match_single_binding, clippy::needless_arbitrary_self_type, clippy::needless_bool, clippy::needless_borrowed_reference, clippy::needless_lifetimes, clippy::needless_option_as_deref, clippy::needless_question_mark, clippy::needless_splitn, clippy::needless_update, clippy::neg_cmp_op_on_partial_ord, clippy::no_effect, clippy::nonminimal_bool, clippy::option_as_ref_deref, clippy::option_filter_map, clippy::option_map_unit_fn, clippy::overflow_check_conditional, clippy::partialeq_ne_impl, clippy::precedence, clippy::ptr_offset_with_cast, clippy::range_zip_with_len, clippy::redundant_closure_call, clippy::redundant_slicing, clippy::ref_in_deref, clippy::repeat_once, clippy::result_map_unit_fn, clippy::search_is_some, clippy::short_circuit_statement, clippy::single_element_loop, clippy::skip_while_next, clippy::string_from_utf8_as_bytes, clippy::strlen_on_c_strings, clippy::temporary_assignment, clippy::too_many_arguments, clippy::transmute_bytes_to_str, clippy::transmute_float_to_int, clippy::transmute_int_to_bool, clippy::transmute_int_to_char, clippy::transmute_int_to_float, clippy::transmute_num_to_bytes, clippy::transmute_ptr_to_ref, clippy::transmutes_expressible_as_ptr_casts, clippy::type_complexity, clippy::unit_arg, clippy::unnecessary_cast, clippy::unnecessary_filter_map, clippy::unnecessary_operation, clippy::unnecessary_sort_by, clippy::unnecessary_unwrap, clippy::unneeded_wildcard_pattern, clippy::useless_asref, clippy::useless_conversion, clippy::useless_format, clippy::vec_box, clippy::while_let_loop, clippy::wildcard_in_or_patterns, clippy::zero_divided_by_zero, clippy::zero_prefixed_literal"##, + description: r##"lint group for: clippy::bind_instead_of_map, clippy::bool_comparison, clippy::borrow_deref_ref, clippy::borrowed_box, clippy::bytes_count_to_len, clippy::char_lit_as_u8, clippy::clone_on_copy, clippy::crosspointer_transmute, clippy::default_constructed_unit_structs, clippy::deprecated_cfg_attr, clippy::deref_addrof, clippy::derivable_impls, clippy::diverging_sub_expression, clippy::double_comparisons, clippy::double_parens, clippy::duration_subsec, clippy::excessive_nesting, clippy::explicit_auto_deref, clippy::explicit_counter_loop, clippy::explicit_write, clippy::extra_unused_lifetimes, clippy::extra_unused_type_parameters, clippy::filter_map_identity, clippy::filter_next, clippy::flat_map_identity, clippy::get_last_with_len, clippy::identity_op, clippy::inspect_for_each, clippy::int_plus_one, clippy::iter_count, clippy::iter_kv_map, clippy::let_with_type_underscore, clippy::manual_filter, clippy::manual_filter_map, clippy::manual_find, clippy::manual_find_map, clippy::manual_flatten, clippy::manual_hash_one, clippy::manual_main_separator_str, clippy::manual_range_patterns, clippy::manual_rem_euclid, clippy::manual_slice_size_calculation, clippy::manual_split_once, clippy::manual_strip, clippy::manual_swap, clippy::manual_unwrap_or, clippy::map_flatten, clippy::map_identity, clippy::match_as_ref, clippy::match_single_binding, clippy::needless_arbitrary_self_type, clippy::needless_bool, clippy::needless_bool_assign, clippy::needless_borrowed_reference, clippy::needless_if, clippy::needless_lifetimes, clippy::needless_match, clippy::needless_option_as_deref, clippy::needless_option_take, clippy::needless_question_mark, clippy::needless_splitn, clippy::needless_update, clippy::neg_cmp_op_on_partial_ord, clippy::no_effect, clippy::nonminimal_bool, clippy::only_used_in_recursion, clippy::option_as_ref_deref, clippy::option_filter_map, clippy::option_map_unit_fn, clippy::or_then_unwrap, clippy::overflow_check_conditional, clippy::partialeq_ne_impl, clippy::precedence, clippy::ptr_offset_with_cast, clippy::range_zip_with_len, clippy::redundant_as_str, clippy::redundant_async_block, clippy::redundant_at_rest_pattern, clippy::redundant_closure_call, clippy::redundant_guards, clippy::redundant_slicing, clippy::repeat_once, clippy::reserve_after_initialization, clippy::result_map_unit_fn, clippy::search_is_some, clippy::seek_from_current, clippy::seek_to_start_instead_of_rewind, clippy::short_circuit_statement, clippy::single_element_loop, clippy::skip_while_next, clippy::string_from_utf8_as_bytes, clippy::strlen_on_c_strings, clippy::temporary_assignment, clippy::too_many_arguments, clippy::transmute_bytes_to_str, clippy::transmute_float_to_int, clippy::transmute_int_to_bool, clippy::transmute_int_to_char, clippy::transmute_int_to_float, clippy::transmute_int_to_non_zero, clippy::transmute_num_to_bytes, clippy::transmute_ptr_to_ref, clippy::transmutes_expressible_as_ptr_casts, clippy::type_complexity, clippy::unit_arg, clippy::unnecessary_cast, clippy::unnecessary_filter_map, clippy::unnecessary_find_map, clippy::unnecessary_literal_unwrap, clippy::unnecessary_map_on_constructor, clippy::unnecessary_operation, clippy::unnecessary_sort_by, clippy::unnecessary_unwrap, clippy::unneeded_wildcard_pattern, clippy::unused_format_specs, clippy::useless_asref, clippy::useless_conversion, clippy::useless_format, clippy::useless_transmute, clippy::vec_box, clippy::while_let_loop, clippy::wildcard_in_or_patterns, clippy::zero_divided_by_zero, clippy::zero_prefixed_literal"##, }, children: &[ "clippy::bind_instead_of_map", "clippy::bool_comparison", + "clippy::borrow_deref_ref", "clippy::borrowed_box", + "clippy::bytes_count_to_len", "clippy::char_lit_as_u8", "clippy::clone_on_copy", "clippy::crosspointer_transmute", + "clippy::default_constructed_unit_structs", "clippy::deprecated_cfg_attr", "clippy::deref_addrof", "clippy::derivable_impls", @@ -7102,9 +13270,12 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ "clippy::double_comparisons", "clippy::double_parens", "clippy::duration_subsec", + "clippy::excessive_nesting", + "clippy::explicit_auto_deref", "clippy::explicit_counter_loop", "clippy::explicit_write", "clippy::extra_unused_lifetimes", + "clippy::extra_unused_type_parameters", "clippy::filter_map_identity", "clippy::filter_next", "clippy::flat_map_identity", @@ -7113,9 +13284,18 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ "clippy::inspect_for_each", "clippy::int_plus_one", "clippy::iter_count", + "clippy::iter_kv_map", + "clippy::let_with_type_underscore", + "clippy::manual_filter", "clippy::manual_filter_map", + "clippy::manual_find", "clippy::manual_find_map", "clippy::manual_flatten", + "clippy::manual_hash_one", + "clippy::manual_main_separator_str", + "clippy::manual_range_patterns", + "clippy::manual_rem_euclid", + "clippy::manual_slice_size_calculation", "clippy::manual_split_once", "clippy::manual_strip", "clippy::manual_swap", @@ -7126,29 +13306,41 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ "clippy::match_single_binding", "clippy::needless_arbitrary_self_type", "clippy::needless_bool", + "clippy::needless_bool_assign", "clippy::needless_borrowed_reference", + "clippy::needless_if", "clippy::needless_lifetimes", + "clippy::needless_match", "clippy::needless_option_as_deref", + "clippy::needless_option_take", "clippy::needless_question_mark", "clippy::needless_splitn", "clippy::needless_update", "clippy::neg_cmp_op_on_partial_ord", "clippy::no_effect", "clippy::nonminimal_bool", + "clippy::only_used_in_recursion", "clippy::option_as_ref_deref", "clippy::option_filter_map", "clippy::option_map_unit_fn", + "clippy::or_then_unwrap", "clippy::overflow_check_conditional", "clippy::partialeq_ne_impl", "clippy::precedence", "clippy::ptr_offset_with_cast", "clippy::range_zip_with_len", + "clippy::redundant_as_str", + "clippy::redundant_async_block", + "clippy::redundant_at_rest_pattern", "clippy::redundant_closure_call", + "clippy::redundant_guards", "clippy::redundant_slicing", - "clippy::ref_in_deref", "clippy::repeat_once", + "clippy::reserve_after_initialization", "clippy::result_map_unit_fn", "clippy::search_is_some", + "clippy::seek_from_current", + "clippy::seek_to_start_instead_of_rewind", "clippy::short_circuit_statement", "clippy::single_element_loop", "clippy::skip_while_next", @@ -7161,6 +13353,7 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ "clippy::transmute_int_to_bool", "clippy::transmute_int_to_char", "clippy::transmute_int_to_float", + "clippy::transmute_int_to_non_zero", "clippy::transmute_num_to_bytes", "clippy::transmute_ptr_to_ref", "clippy::transmutes_expressible_as_ptr_casts", @@ -7168,13 +13361,18 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ "clippy::unit_arg", "clippy::unnecessary_cast", "clippy::unnecessary_filter_map", + "clippy::unnecessary_find_map", + "clippy::unnecessary_literal_unwrap", + "clippy::unnecessary_map_on_constructor", "clippy::unnecessary_operation", "clippy::unnecessary_sort_by", "clippy::unnecessary_unwrap", "clippy::unneeded_wildcard_pattern", + "clippy::unused_format_specs", "clippy::useless_asref", "clippy::useless_conversion", "clippy::useless_format", + "clippy::useless_transmute", "clippy::vec_box", "clippy::while_let_loop", "clippy::wildcard_in_or_patterns", @@ -7185,7 +13383,7 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ LintGroup { lint: Lint { label: "clippy::correctness", - description: r##"lint group for: clippy::absurd_extreme_comparisons, clippy::almost_swapped, clippy::approx_constant, clippy::async_yields_async, clippy::bad_bit_mask, clippy::cast_ref_to_mut, clippy::clone_double_ref, clippy::cmp_nan, clippy::deprecated_semver, clippy::derive_hash_xor_eq, clippy::derive_ord_xor_partial_ord, clippy::drop_copy, clippy::drop_ref, clippy::enum_clike_unportable_variant, clippy::eq_op, clippy::erasing_op, clippy::fn_address_comparisons, clippy::forget_copy, clippy::forget_ref, clippy::if_let_mutex, clippy::if_same_then_else, clippy::ifs_same_cond, clippy::ineffective_bit_mask, clippy::infinite_iter, clippy::inherent_to_string_shadow_display, clippy::inline_fn_without_body, clippy::invalid_null_ptr_usage, clippy::invalid_regex, clippy::invisible_characters, clippy::iter_next_loop, clippy::iterator_step_by_zero, clippy::let_underscore_lock, clippy::logic_bug, clippy::match_str_case_mismatch, clippy::mem_replace_with_uninit, clippy::min_max, clippy::mismatched_target_os, clippy::mistyped_literal_suffixes, clippy::modulo_one, clippy::mut_from_ref, clippy::never_loop, clippy::non_octal_unix_permissions, clippy::nonsensical_open_options, clippy::not_unsafe_ptr_arg_deref, clippy::option_env_unwrap, clippy::out_of_bounds_indexing, clippy::panicking_unwrap, clippy::possible_missing_comma, clippy::reversed_empty_ranges, clippy::self_assignment, clippy::serde_api_misuse, clippy::size_of_in_element_count, clippy::suspicious_splitn, clippy::to_string_in_display, clippy::transmuting_null, clippy::undropped_manually_drops, clippy::uninit_assumed_init, clippy::uninit_vec, clippy::unit_cmp, clippy::unit_hash, clippy::unit_return_expecting_ord, clippy::unsound_collection_transmute, clippy::unused_io_amount, clippy::useless_attribute, clippy::vec_resize_to_zero, clippy::vtable_address_comparisons, clippy::while_immutable_condition, clippy::wrong_transmute, clippy::zst_offset"##, + description: r##"lint group for: clippy::absurd_extreme_comparisons, clippy::almost_swapped, clippy::approx_constant, clippy::async_yields_async, clippy::bad_bit_mask, clippy::cast_slice_different_sizes, clippy::deprecated_semver, clippy::derive_ord_xor_partial_ord, clippy::derived_hash_with_manual_eq, clippy::enum_clike_unportable_variant, clippy::eq_op, clippy::erasing_op, clippy::fn_address_comparisons, clippy::if_let_mutex, clippy::if_same_then_else, clippy::ifs_same_cond, clippy::impossible_comparisons, clippy::ineffective_bit_mask, clippy::infinite_iter, clippy::inherent_to_string_shadow_display, clippy::inline_fn_without_body, clippy::invalid_null_ptr_usage, clippy::invalid_regex, clippy::invisible_characters, clippy::iter_next_loop, clippy::iter_skip_zero, clippy::iterator_step_by_zero, clippy::let_underscore_lock, clippy::match_str_case_mismatch, clippy::mem_replace_with_uninit, clippy::min_max, clippy::mismatched_target_os, clippy::mistyped_literal_suffixes, clippy::modulo_one, clippy::mut_from_ref, clippy::never_loop, clippy::non_octal_unix_permissions, clippy::nonsensical_open_options, clippy::not_unsafe_ptr_arg_deref, clippy::option_env_unwrap, clippy::out_of_bounds_indexing, clippy::overly_complex_bool_expr, clippy::panicking_unwrap, clippy::possible_missing_comma, clippy::read_line_without_trim, clippy::read_zero_byte_vec, clippy::recursive_format_impl, clippy::redundant_comparisons, clippy::redundant_locals, clippy::reversed_empty_ranges, clippy::self_assignment, clippy::serde_api_misuse, clippy::size_of_in_element_count, clippy::suspicious_splitn, clippy::transmute_null_to_fn, clippy::transmuting_null, clippy::uninit_assumed_init, clippy::uninit_vec, clippy::unit_cmp, clippy::unit_hash, clippy::unit_return_expecting_ord, clippy::unsound_collection_transmute, clippy::unused_io_amount, clippy::useless_attribute, clippy::vec_resize_to_zero, clippy::vtable_address_comparisons, clippy::while_immutable_condition, clippy::wrong_transmute, clippy::zst_offset"##, }, children: &[ "clippy::absurd_extreme_comparisons", @@ -7193,23 +13391,18 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ "clippy::approx_constant", "clippy::async_yields_async", "clippy::bad_bit_mask", - "clippy::cast_ref_to_mut", - "clippy::clone_double_ref", - "clippy::cmp_nan", + "clippy::cast_slice_different_sizes", "clippy::deprecated_semver", - "clippy::derive_hash_xor_eq", "clippy::derive_ord_xor_partial_ord", - "clippy::drop_copy", - "clippy::drop_ref", + "clippy::derived_hash_with_manual_eq", "clippy::enum_clike_unportable_variant", "clippy::eq_op", "clippy::erasing_op", "clippy::fn_address_comparisons", - "clippy::forget_copy", - "clippy::forget_ref", "clippy::if_let_mutex", "clippy::if_same_then_else", "clippy::ifs_same_cond", + "clippy::impossible_comparisons", "clippy::ineffective_bit_mask", "clippy::infinite_iter", "clippy::inherent_to_string_shadow_display", @@ -7218,9 +13411,9 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ "clippy::invalid_regex", "clippy::invisible_characters", "clippy::iter_next_loop", + "clippy::iter_skip_zero", "clippy::iterator_step_by_zero", "clippy::let_underscore_lock", - "clippy::logic_bug", "clippy::match_str_case_mismatch", "clippy::mem_replace_with_uninit", "clippy::min_max", @@ -7234,16 +13427,21 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ "clippy::not_unsafe_ptr_arg_deref", "clippy::option_env_unwrap", "clippy::out_of_bounds_indexing", + "clippy::overly_complex_bool_expr", "clippy::panicking_unwrap", "clippy::possible_missing_comma", + "clippy::read_line_without_trim", + "clippy::read_zero_byte_vec", + "clippy::recursive_format_impl", + "clippy::redundant_comparisons", + "clippy::redundant_locals", "clippy::reversed_empty_ranges", "clippy::self_assignment", "clippy::serde_api_misuse", "clippy::size_of_in_element_count", "clippy::suspicious_splitn", - "clippy::to_string_in_display", + "clippy::transmute_null_to_fn", "clippy::transmuting_null", - "clippy::undropped_manually_drops", "clippy::uninit_assumed_init", "clippy::uninit_vec", "clippy::unit_cmp", @@ -7286,45 +13484,66 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ LintGroup { lint: Lint { label: "clippy::nursery", - description: r##"lint group for: clippy::branches_sharing_code, clippy::cognitive_complexity, clippy::debug_assert_with_mut_call, clippy::disallowed_methods, clippy::disallowed_types, clippy::empty_line_after_outer_attr, clippy::equatable_if_let, clippy::fallible_impl_from, clippy::future_not_send, clippy::imprecise_flops, clippy::index_refutable_slice, clippy::missing_const_for_fn, clippy::mutex_integer, clippy::non_send_fields_in_send_ty, clippy::nonstandard_macro_braces, clippy::option_if_let_else, clippy::path_buf_push_overwrite, clippy::redundant_pub_crate, clippy::string_lit_as_bytes, clippy::suboptimal_flops, clippy::suspicious_operation_groupings, clippy::trailing_empty_array, clippy::trivial_regex, clippy::use_self, clippy::useless_let_if_seq, clippy::useless_transmute"##, + description: r##"lint group for: clippy::as_ptr_cast_mut, clippy::branches_sharing_code, clippy::clear_with_drain, clippy::cognitive_complexity, clippy::collection_is_never_read, clippy::debug_assert_with_mut_call, clippy::derive_partial_eq_without_eq, clippy::empty_line_after_doc_comments, clippy::empty_line_after_outer_attr, clippy::equatable_if_let, clippy::fallible_impl_from, clippy::future_not_send, clippy::implied_bounds_in_impls, clippy::imprecise_flops, clippy::iter_on_empty_collections, clippy::iter_on_single_items, clippy::iter_with_drain, clippy::large_stack_frames, clippy::manual_clamp, clippy::missing_const_for_fn, clippy::mutex_integer, clippy::needless_collect, clippy::needless_pass_by_ref_mut, clippy::non_send_fields_in_send_ty, clippy::nonstandard_macro_braces, clippy::option_if_let_else, clippy::or_fun_call, clippy::path_buf_push_overwrite, clippy::readonly_write_lock, clippy::redundant_clone, clippy::redundant_pub_crate, clippy::significant_drop_in_scrutinee, clippy::significant_drop_tightening, clippy::string_lit_as_bytes, clippy::suboptimal_flops, clippy::suspicious_operation_groupings, clippy::trailing_empty_array, clippy::trait_duplication_in_bounds, clippy::transmute_undefined_repr, clippy::trivial_regex, clippy::tuple_array_conversions, clippy::type_repetition_in_bounds, clippy::unnecessary_struct_initialization, clippy::unused_peekable, clippy::unused_rounding, clippy::use_self, clippy::useless_let_if_seq"##, }, children: &[ + "clippy::as_ptr_cast_mut", "clippy::branches_sharing_code", + "clippy::clear_with_drain", "clippy::cognitive_complexity", + "clippy::collection_is_never_read", "clippy::debug_assert_with_mut_call", - "clippy::disallowed_methods", - "clippy::disallowed_types", + "clippy::derive_partial_eq_without_eq", + "clippy::empty_line_after_doc_comments", "clippy::empty_line_after_outer_attr", "clippy::equatable_if_let", "clippy::fallible_impl_from", "clippy::future_not_send", + "clippy::implied_bounds_in_impls", "clippy::imprecise_flops", - "clippy::index_refutable_slice", + "clippy::iter_on_empty_collections", + "clippy::iter_on_single_items", + "clippy::iter_with_drain", + "clippy::large_stack_frames", + "clippy::manual_clamp", "clippy::missing_const_for_fn", "clippy::mutex_integer", + "clippy::needless_collect", + "clippy::needless_pass_by_ref_mut", "clippy::non_send_fields_in_send_ty", "clippy::nonstandard_macro_braces", "clippy::option_if_let_else", + "clippy::or_fun_call", "clippy::path_buf_push_overwrite", + "clippy::readonly_write_lock", + "clippy::redundant_clone", "clippy::redundant_pub_crate", + "clippy::significant_drop_in_scrutinee", + "clippy::significant_drop_tightening", "clippy::string_lit_as_bytes", "clippy::suboptimal_flops", "clippy::suspicious_operation_groupings", "clippy::trailing_empty_array", + "clippy::trait_duplication_in_bounds", + "clippy::transmute_undefined_repr", "clippy::trivial_regex", + "clippy::tuple_array_conversions", + "clippy::type_repetition_in_bounds", + "clippy::unnecessary_struct_initialization", + "clippy::unused_peekable", + "clippy::unused_rounding", "clippy::use_self", "clippy::useless_let_if_seq", - "clippy::useless_transmute", ], }, LintGroup { lint: Lint { label: "clippy::pedantic", - description: r##"lint group for: clippy::await_holding_lock, clippy::await_holding_refcell_ref, clippy::case_sensitive_file_extension_comparisons, clippy::cast_lossless, clippy::cast_possible_truncation, clippy::cast_possible_wrap, clippy::cast_precision_loss, clippy::cast_ptr_alignment, clippy::cast_sign_loss, clippy::checked_conversions, clippy::cloned_instead_of_copied, clippy::copy_iterator, clippy::default_trait_access, clippy::doc_markdown, clippy::empty_enum, clippy::enum_glob_use, clippy::expl_impl_clone_on_copy, clippy::explicit_deref_methods, clippy::explicit_into_iter_loop, clippy::explicit_iter_loop, clippy::filter_map_next, clippy::flat_map_option, clippy::float_cmp, clippy::fn_params_excessive_bools, clippy::from_iter_instead_of_collect, clippy::if_not_else, clippy::implicit_clone, clippy::implicit_hasher, clippy::implicit_saturating_sub, clippy::inconsistent_struct_constructor, clippy::inefficient_to_string, clippy::inline_always, clippy::invalid_upcast_comparisons, clippy::items_after_statements, clippy::iter_not_returning_iterator, clippy::large_digit_groups, clippy::large_stack_arrays, clippy::large_types_passed_by_value, clippy::let_underscore_drop, clippy::let_unit_value, clippy::linkedlist, clippy::macro_use_imports, clippy::manual_assert, clippy::manual_ok_or, clippy::many_single_char_names, clippy::map_unwrap_or, clippy::match_bool, clippy::match_on_vec_items, clippy::match_same_arms, clippy::match_wild_err_arm, clippy::match_wildcard_for_single_variants, clippy::maybe_infinite_iter, clippy::missing_errors_doc, clippy::missing_panics_doc, clippy::module_name_repetitions, clippy::must_use_candidate, clippy::mut_mut, clippy::naive_bytecount, clippy::needless_bitwise_bool, clippy::needless_continue, clippy::needless_for_each, clippy::needless_pass_by_value, clippy::no_effect_underscore_binding, clippy::option_option, clippy::ptr_as_ptr, clippy::range_minus_one, clippy::range_plus_one, clippy::redundant_closure_for_method_calls, clippy::redundant_else, clippy::ref_binding_to_reference, clippy::ref_option_ref, clippy::same_functions_in_if_condition, clippy::semicolon_if_nothing_returned, clippy::similar_names, clippy::single_match_else, clippy::string_add_assign, clippy::struct_excessive_bools, clippy::too_many_lines, clippy::trait_duplication_in_bounds, clippy::transmute_ptr_to_ptr, clippy::trivially_copy_pass_by_ref, clippy::type_repetition_in_bounds, clippy::unicode_not_nfc, clippy::unnecessary_wraps, clippy::unnested_or_patterns, clippy::unreadable_literal, clippy::unsafe_derive_deserialize, clippy::unused_async, clippy::unused_self, clippy::used_underscore_binding, clippy::verbose_bit_mask, clippy::wildcard_imports, clippy::zero_sized_map_values"##, + description: r##"lint group for: clippy::bool_to_int_with_if, clippy::borrow_as_ptr, clippy::case_sensitive_file_extension_comparisons, clippy::cast_lossless, clippy::cast_possible_truncation, clippy::cast_possible_wrap, clippy::cast_precision_loss, clippy::cast_ptr_alignment, clippy::cast_sign_loss, clippy::checked_conversions, clippy::cloned_instead_of_copied, clippy::copy_iterator, clippy::default_trait_access, clippy::doc_link_with_quotes, clippy::doc_markdown, clippy::empty_enum, clippy::enum_glob_use, clippy::expl_impl_clone_on_copy, clippy::explicit_deref_methods, clippy::explicit_into_iter_loop, clippy::explicit_iter_loop, clippy::filter_map_next, clippy::flat_map_option, clippy::float_cmp, clippy::fn_params_excessive_bools, clippy::from_iter_instead_of_collect, clippy::if_not_else, clippy::ignored_unit_patterns, clippy::implicit_clone, clippy::implicit_hasher, clippy::inconsistent_struct_constructor, clippy::index_refutable_slice, clippy::inefficient_to_string, clippy::inline_always, clippy::into_iter_without_iter, clippy::invalid_upcast_comparisons, clippy::items_after_statements, clippy::iter_not_returning_iterator, clippy::iter_without_into_iter, clippy::large_digit_groups, clippy::large_futures, clippy::large_stack_arrays, clippy::large_types_passed_by_value, clippy::linkedlist, clippy::macro_use_imports, clippy::manual_assert, clippy::manual_instant_elapsed, clippy::manual_let_else, clippy::manual_ok_or, clippy::manual_string_new, clippy::many_single_char_names, clippy::map_unwrap_or, clippy::match_bool, clippy::match_on_vec_items, clippy::match_same_arms, clippy::match_wild_err_arm, clippy::match_wildcard_for_single_variants, clippy::maybe_infinite_iter, clippy::mismatching_type_param_order, clippy::missing_errors_doc, clippy::missing_fields_in_debug, clippy::missing_panics_doc, clippy::module_name_repetitions, clippy::must_use_candidate, clippy::mut_mut, clippy::naive_bytecount, clippy::needless_bitwise_bool, clippy::needless_continue, clippy::needless_for_each, clippy::needless_pass_by_value, clippy::needless_raw_string_hashes, clippy::no_effect_underscore_binding, clippy::no_mangle_with_rust_abi, clippy::option_option, clippy::ptr_as_ptr, clippy::ptr_cast_constness, clippy::range_minus_one, clippy::range_plus_one, clippy::redundant_closure_for_method_calls, clippy::redundant_else, clippy::ref_binding_to_reference, clippy::ref_option_ref, clippy::return_self_not_must_use, clippy::same_functions_in_if_condition, clippy::semicolon_if_nothing_returned, clippy::should_panic_without_expect, clippy::similar_names, clippy::single_match_else, clippy::stable_sort_primitive, clippy::string_add_assign, clippy::struct_excessive_bools, clippy::too_many_lines, clippy::transmute_ptr_to_ptr, clippy::trivially_copy_pass_by_ref, clippy::unchecked_duration_subtraction, clippy::unicode_not_nfc, clippy::uninlined_format_args, clippy::unnecessary_box_returns, clippy::unnecessary_join, clippy::unnecessary_wraps, clippy::unnested_or_patterns, clippy::unreadable_literal, clippy::unsafe_derive_deserialize, clippy::unused_async, clippy::unused_self, clippy::used_underscore_binding, clippy::verbose_bit_mask, clippy::wildcard_imports, clippy::zero_sized_map_values"##, }, children: &[ - "clippy::await_holding_lock", - "clippy::await_holding_refcell_ref", + "clippy::bool_to_int_with_if", + "clippy::borrow_as_ptr", "clippy::case_sensitive_file_extension_comparisons", "clippy::cast_lossless", "clippy::cast_possible_truncation", @@ -7336,6 +13555,7 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ "clippy::cloned_instead_of_copied", "clippy::copy_iterator", "clippy::default_trait_access", + "clippy::doc_link_with_quotes", "clippy::doc_markdown", "clippy::empty_enum", "clippy::enum_glob_use", @@ -7349,24 +13569,29 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ "clippy::fn_params_excessive_bools", "clippy::from_iter_instead_of_collect", "clippy::if_not_else", + "clippy::ignored_unit_patterns", "clippy::implicit_clone", "clippy::implicit_hasher", - "clippy::implicit_saturating_sub", "clippy::inconsistent_struct_constructor", + "clippy::index_refutable_slice", "clippy::inefficient_to_string", "clippy::inline_always", + "clippy::into_iter_without_iter", "clippy::invalid_upcast_comparisons", "clippy::items_after_statements", "clippy::iter_not_returning_iterator", + "clippy::iter_without_into_iter", "clippy::large_digit_groups", + "clippy::large_futures", "clippy::large_stack_arrays", "clippy::large_types_passed_by_value", - "clippy::let_underscore_drop", - "clippy::let_unit_value", "clippy::linkedlist", "clippy::macro_use_imports", "clippy::manual_assert", + "clippy::manual_instant_elapsed", + "clippy::manual_let_else", "clippy::manual_ok_or", + "clippy::manual_string_new", "clippy::many_single_char_names", "clippy::map_unwrap_or", "clippy::match_bool", @@ -7375,7 +13600,9 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ "clippy::match_wild_err_arm", "clippy::match_wildcard_for_single_variants", "clippy::maybe_infinite_iter", + "clippy::mismatching_type_param_order", "clippy::missing_errors_doc", + "clippy::missing_fields_in_debug", "clippy::missing_panics_doc", "clippy::module_name_repetitions", "clippy::must_use_candidate", @@ -7385,27 +13612,35 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ "clippy::needless_continue", "clippy::needless_for_each", "clippy::needless_pass_by_value", + "clippy::needless_raw_string_hashes", "clippy::no_effect_underscore_binding", + "clippy::no_mangle_with_rust_abi", "clippy::option_option", "clippy::ptr_as_ptr", + "clippy::ptr_cast_constness", "clippy::range_minus_one", "clippy::range_plus_one", "clippy::redundant_closure_for_method_calls", "clippy::redundant_else", "clippy::ref_binding_to_reference", "clippy::ref_option_ref", + "clippy::return_self_not_must_use", "clippy::same_functions_in_if_condition", "clippy::semicolon_if_nothing_returned", + "clippy::should_panic_without_expect", "clippy::similar_names", "clippy::single_match_else", + "clippy::stable_sort_primitive", "clippy::string_add_assign", "clippy::struct_excessive_bools", "clippy::too_many_lines", - "clippy::trait_duplication_in_bounds", "clippy::transmute_ptr_to_ptr", "clippy::trivially_copy_pass_by_ref", - "clippy::type_repetition_in_bounds", + "clippy::unchecked_duration_subtraction", "clippy::unicode_not_nfc", + "clippy::uninlined_format_args", + "clippy::unnecessary_box_returns", + "clippy::unnecessary_join", "clippy::unnecessary_wraps", "clippy::unnested_or_patterns", "clippy::unreadable_literal", @@ -7421,29 +13656,33 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ LintGroup { lint: Lint { label: "clippy::perf", - description: r##"lint group for: clippy::box_collection, clippy::boxed_local, clippy::cmp_owned, clippy::expect_fun_call, clippy::extend_with_drain, clippy::format_in_format_args, clippy::iter_nth, clippy::large_const_arrays, clippy::large_enum_variant, clippy::manual_memcpy, clippy::manual_str_repeat, clippy::map_entry, clippy::mutex_atomic, clippy::needless_collect, clippy::or_fun_call, clippy::redundant_allocation, clippy::redundant_clone, clippy::single_char_pattern, clippy::slow_vector_initialization, clippy::stable_sort_primitive, clippy::to_string_in_format_args, clippy::unnecessary_to_owned, clippy::useless_vec, clippy::vec_init_then_push"##, + description: r##"lint group for: clippy::box_collection, clippy::box_default, clippy::boxed_local, clippy::cmp_owned, clippy::collapsible_str_replace, clippy::drain_collect, clippy::expect_fun_call, clippy::extend_with_drain, clippy::format_collect, clippy::format_in_format_args, clippy::iter_nth, clippy::iter_overeager_cloned, clippy::large_const_arrays, clippy::large_enum_variant, clippy::manual_memcpy, clippy::manual_retain, clippy::manual_str_repeat, clippy::manual_try_fold, clippy::map_entry, clippy::missing_spin_loop, clippy::redundant_allocation, clippy::result_large_err, clippy::single_char_pattern, clippy::slow_vector_initialization, clippy::to_string_in_format_args, clippy::unnecessary_to_owned, clippy::useless_vec, clippy::vec_init_then_push"##, }, children: &[ "clippy::box_collection", + "clippy::box_default", "clippy::boxed_local", "clippy::cmp_owned", + "clippy::collapsible_str_replace", + "clippy::drain_collect", "clippy::expect_fun_call", "clippy::extend_with_drain", + "clippy::format_collect", "clippy::format_in_format_args", "clippy::iter_nth", + "clippy::iter_overeager_cloned", "clippy::large_const_arrays", "clippy::large_enum_variant", "clippy::manual_memcpy", + "clippy::manual_retain", "clippy::manual_str_repeat", + "clippy::manual_try_fold", "clippy::map_entry", - "clippy::mutex_atomic", - "clippy::needless_collect", - "clippy::or_fun_call", + "clippy::missing_spin_loop", "clippy::redundant_allocation", - "clippy::redundant_clone", + "clippy::result_large_err", "clippy::single_char_pattern", "clippy::slow_vector_initialization", - "clippy::stable_sort_primitive", "clippy::to_string_in_format_args", "clippy::unnecessary_to_owned", "clippy::useless_vec", @@ -7453,17 +13692,30 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ LintGroup { lint: Lint { label: "clippy::restriction", - description: r##"lint group for: clippy::as_conversions, clippy::clone_on_ref_ptr, clippy::create_dir, clippy::dbg_macro, clippy::decimal_literal_representation, clippy::default_numeric_fallback, clippy::disallowed_script_idents, clippy::else_if_without_else, clippy::exhaustive_enums, clippy::exhaustive_structs, clippy::exit, clippy::expect_used, clippy::filetype_is_file, clippy::float_arithmetic, clippy::float_cmp_const, clippy::fn_to_numeric_cast_any, clippy::get_unwrap, clippy::if_then_some_else_none, clippy::implicit_return, clippy::indexing_slicing, clippy::inline_asm_x86_att_syntax, clippy::inline_asm_x86_intel_syntax, clippy::integer_arithmetic, clippy::integer_division, clippy::let_underscore_must_use, clippy::lossy_float_literal, clippy::map_err_ignore, clippy::mem_forget, clippy::missing_docs_in_private_items, clippy::missing_enforced_import_renames, clippy::missing_inline_in_public_items, clippy::mod_module_files, clippy::modulo_arithmetic, clippy::multiple_inherent_impl, clippy::non_ascii_literal, clippy::panic, clippy::panic_in_result_fn, clippy::pattern_type_mismatch, clippy::print_stderr, clippy::print_stdout, clippy::rc_buffer, clippy::rc_mutex, clippy::rest_pat_in_fully_bound_structs, clippy::same_name_method, clippy::self_named_module_files, clippy::separated_literal_suffix, clippy::shadow_reuse, clippy::shadow_same, clippy::shadow_unrelated, clippy::str_to_string, clippy::string_add, clippy::string_slice, clippy::string_to_string, clippy::todo, clippy::undocumented_unsafe_blocks, clippy::unimplemented, clippy::unnecessary_self_imports, clippy::unneeded_field_pattern, clippy::unreachable, clippy::unseparated_literal_suffix, clippy::unwrap_in_result, clippy::unwrap_used, clippy::use_debug, clippy::verbose_file_reads, clippy::wildcard_enum_match_arm"##, + description: r##"lint group for: clippy::absolute_paths, clippy::alloc_instead_of_core, clippy::allow_attributes, clippy::allow_attributes_without_reason, clippy::arithmetic_side_effects, clippy::as_conversions, clippy::as_underscore, clippy::assertions_on_result_states, clippy::big_endian_bytes, clippy::clone_on_ref_ptr, clippy::create_dir, clippy::dbg_macro, clippy::decimal_literal_representation, clippy::default_numeric_fallback, clippy::default_union_representation, clippy::deref_by_slicing, clippy::disallowed_script_idents, clippy::else_if_without_else, clippy::empty_drop, clippy::empty_structs_with_brackets, clippy::error_impl_error, clippy::exhaustive_enums, clippy::exhaustive_structs, clippy::exit, clippy::expect_used, clippy::filetype_is_file, clippy::float_arithmetic, clippy::float_cmp_const, clippy::fn_to_numeric_cast_any, clippy::format_push_string, clippy::get_unwrap, clippy::host_endian_bytes, clippy::if_then_some_else_none, clippy::impl_trait_in_params, clippy::implicit_return, clippy::indexing_slicing, clippy::inline_asm_x86_att_syntax, clippy::inline_asm_x86_intel_syntax, clippy::integer_division, clippy::large_include_file, clippy::let_underscore_must_use, clippy::let_underscore_untyped, clippy::little_endian_bytes, clippy::lossy_float_literal, clippy::map_err_ignore, clippy::mem_forget, clippy::min_ident_chars, clippy::missing_assert_message, clippy::missing_asserts_for_indexing, clippy::missing_docs_in_private_items, clippy::missing_enforced_import_renames, clippy::missing_inline_in_public_items, clippy::missing_trait_methods, clippy::mixed_read_write_in_expression, clippy::mod_module_files, clippy::modulo_arithmetic, clippy::multiple_inherent_impl, clippy::multiple_unsafe_ops_per_block, clippy::mutex_atomic, clippy::needless_raw_strings, clippy::non_ascii_literal, clippy::panic, clippy::panic_in_result_fn, clippy::partial_pub_fields, clippy::pattern_type_mismatch, clippy::print_stderr, clippy::print_stdout, clippy::pub_use, clippy::pub_with_shorthand, clippy::pub_without_shorthand, clippy::question_mark_used, clippy::rc_buffer, clippy::rc_mutex, clippy::redundant_type_annotations, clippy::ref_patterns, clippy::rest_pat_in_fully_bound_structs, clippy::same_name_method, clippy::self_named_module_files, clippy::semicolon_inside_block, clippy::semicolon_outside_block, clippy::separated_literal_suffix, clippy::shadow_reuse, clippy::shadow_same, clippy::shadow_unrelated, clippy::single_call_fn, clippy::single_char_lifetime_names, clippy::std_instead_of_alloc, clippy::std_instead_of_core, clippy::str_to_string, clippy::string_add, clippy::string_lit_chars_any, clippy::string_slice, clippy::string_to_string, clippy::suspicious_xor_used_as_pow, clippy::tests_outside_test_module, clippy::todo, clippy::try_err, clippy::undocumented_unsafe_blocks, clippy::unimplemented, clippy::unnecessary_safety_comment, clippy::unnecessary_safety_doc, clippy::unnecessary_self_imports, clippy::unneeded_field_pattern, clippy::unreachable, clippy::unseparated_literal_suffix, clippy::unwrap_in_result, clippy::unwrap_used, clippy::use_debug, clippy::verbose_file_reads, clippy::wildcard_enum_match_arm"##, }, children: &[ + "clippy::absolute_paths", + "clippy::alloc_instead_of_core", + "clippy::allow_attributes", + "clippy::allow_attributes_without_reason", + "clippy::arithmetic_side_effects", "clippy::as_conversions", + "clippy::as_underscore", + "clippy::assertions_on_result_states", + "clippy::big_endian_bytes", "clippy::clone_on_ref_ptr", "clippy::create_dir", "clippy::dbg_macro", "clippy::decimal_literal_representation", "clippy::default_numeric_fallback", + "clippy::default_union_representation", + "clippy::deref_by_slicing", "clippy::disallowed_script_idents", "clippy::else_if_without_else", + "clippy::empty_drop", + "clippy::empty_structs_with_brackets", + "clippy::error_impl_error", "clippy::exhaustive_enums", "clippy::exhaustive_structs", "clippy::exit", @@ -7472,46 +13724,78 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ "clippy::float_arithmetic", "clippy::float_cmp_const", "clippy::fn_to_numeric_cast_any", + "clippy::format_push_string", "clippy::get_unwrap", + "clippy::host_endian_bytes", "clippy::if_then_some_else_none", + "clippy::impl_trait_in_params", "clippy::implicit_return", "clippy::indexing_slicing", "clippy::inline_asm_x86_att_syntax", "clippy::inline_asm_x86_intel_syntax", - "clippy::integer_arithmetic", "clippy::integer_division", + "clippy::large_include_file", "clippy::let_underscore_must_use", + "clippy::let_underscore_untyped", + "clippy::little_endian_bytes", "clippy::lossy_float_literal", "clippy::map_err_ignore", "clippy::mem_forget", + "clippy::min_ident_chars", + "clippy::missing_assert_message", + "clippy::missing_asserts_for_indexing", "clippy::missing_docs_in_private_items", "clippy::missing_enforced_import_renames", "clippy::missing_inline_in_public_items", + "clippy::missing_trait_methods", + "clippy::mixed_read_write_in_expression", "clippy::mod_module_files", "clippy::modulo_arithmetic", "clippy::multiple_inherent_impl", + "clippy::multiple_unsafe_ops_per_block", + "clippy::mutex_atomic", + "clippy::needless_raw_strings", "clippy::non_ascii_literal", "clippy::panic", "clippy::panic_in_result_fn", + "clippy::partial_pub_fields", "clippy::pattern_type_mismatch", "clippy::print_stderr", "clippy::print_stdout", + "clippy::pub_use", + "clippy::pub_with_shorthand", + "clippy::pub_without_shorthand", + "clippy::question_mark_used", "clippy::rc_buffer", "clippy::rc_mutex", + "clippy::redundant_type_annotations", + "clippy::ref_patterns", "clippy::rest_pat_in_fully_bound_structs", "clippy::same_name_method", "clippy::self_named_module_files", + "clippy::semicolon_inside_block", + "clippy::semicolon_outside_block", "clippy::separated_literal_suffix", "clippy::shadow_reuse", "clippy::shadow_same", "clippy::shadow_unrelated", + "clippy::single_call_fn", + "clippy::single_char_lifetime_names", + "clippy::std_instead_of_alloc", + "clippy::std_instead_of_core", "clippy::str_to_string", "clippy::string_add", + "clippy::string_lit_chars_any", "clippy::string_slice", "clippy::string_to_string", + "clippy::suspicious_xor_used_as_pow", + "clippy::tests_outside_test_module", "clippy::todo", + "clippy::try_err", "clippy::undocumented_unsafe_blocks", "clippy::unimplemented", + "clippy::unnecessary_safety_comment", + "clippy::unnecessary_safety_doc", "clippy::unnecessary_self_imports", "clippy::unneeded_field_pattern", "clippy::unreachable", @@ -7526,12 +13810,11 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ LintGroup { lint: Lint { label: "clippy::style", - description: r##"lint group for: clippy::assertions_on_constants, clippy::assign_op_pattern, clippy::blacklisted_name, clippy::blocks_in_if_conditions, clippy::bool_assert_comparison, clippy::borrow_interior_mutable_const, clippy::builtin_type_shadow, clippy::bytes_nth, clippy::chars_last_cmp, clippy::chars_next_cmp, clippy::cmp_null, clippy::collapsible_else_if, clippy::collapsible_if, clippy::collapsible_match, clippy::comparison_chain, clippy::comparison_to_empty, clippy::declare_interior_mutable_const, clippy::double_must_use, clippy::double_neg, clippy::duplicate_underscore_argument, clippy::enum_variant_names, clippy::excessive_precision, clippy::field_reassign_with_default, clippy::fn_to_numeric_cast, clippy::fn_to_numeric_cast_with_truncation, clippy::for_kv_map, clippy::from_over_into, clippy::from_str_radix_10, clippy::inconsistent_digit_grouping, clippy::infallible_destructuring_match, clippy::inherent_to_string, clippy::into_iter_on_ref, clippy::iter_cloned_collect, clippy::iter_next_slice, clippy::iter_nth_zero, clippy::iter_skip_next, clippy::just_underscores_and_digits, clippy::len_without_is_empty, clippy::len_zero, clippy::let_and_return, clippy::main_recursion, clippy::manual_async_fn, clippy::manual_map, clippy::manual_non_exhaustive, clippy::manual_range_contains, clippy::manual_saturating_arithmetic, clippy::map_clone, clippy::map_collect_result_unit, clippy::match_like_matches_macro, clippy::match_overlapping_arm, clippy::match_ref_pats, clippy::match_result_ok, clippy::mem_replace_option_with_none, clippy::mem_replace_with_default, clippy::missing_safety_doc, clippy::mixed_case_hex_literals, clippy::module_inception, clippy::must_use_unit, clippy::mut_mutex_lock, clippy::needless_borrow, clippy::needless_doctest_main, clippy::needless_late_init, clippy::needless_range_loop, clippy::needless_return, clippy::neg_multiply, clippy::new_ret_no_self, clippy::new_without_default, clippy::ok_expect, clippy::op_ref, clippy::option_map_or_none, clippy::print_literal, clippy::print_with_newline, clippy::println_empty_string, clippy::ptr_arg, clippy::ptr_eq, clippy::question_mark, clippy::redundant_closure, clippy::redundant_field_names, clippy::redundant_pattern, clippy::redundant_pattern_matching, clippy::redundant_static_lifetimes, clippy::result_map_or_into_option, clippy::result_unit_err, clippy::same_item_push, clippy::self_named_constructors, clippy::should_implement_trait, clippy::single_char_add_str, clippy::single_component_path_imports, clippy::single_match, clippy::string_extend_chars, clippy::tabs_in_doc_comments, clippy::to_digit_is_some, clippy::toplevel_ref_arg, clippy::try_err, clippy::unnecessary_fold, clippy::unnecessary_lazy_evaluations, clippy::unnecessary_mut_passed, clippy::unsafe_removed_from_name, clippy::unused_unit, clippy::unusual_byte_groupings, clippy::unwrap_or_else_default, clippy::upper_case_acronyms, clippy::while_let_on_iterator, clippy::write_literal, clippy::write_with_newline, clippy::writeln_empty_string, clippy::wrong_self_convention, clippy::zero_ptr"##, + description: r##"lint group for: clippy::assertions_on_constants, clippy::assign_op_pattern, clippy::blocks_in_if_conditions, clippy::bool_assert_comparison, clippy::borrow_interior_mutable_const, clippy::builtin_type_shadow, clippy::bytes_nth, clippy::chars_last_cmp, clippy::chars_next_cmp, clippy::cmp_null, clippy::collapsible_else_if, clippy::collapsible_if, clippy::collapsible_match, clippy::comparison_chain, clippy::comparison_to_empty, clippy::declare_interior_mutable_const, clippy::default_instead_of_iter_empty, clippy::disallowed_macros, clippy::disallowed_methods, clippy::disallowed_names, clippy::disallowed_types, clippy::double_must_use, clippy::double_neg, clippy::duplicate_underscore_argument, clippy::enum_variant_names, clippy::err_expect, clippy::excessive_precision, clippy::field_reassign_with_default, clippy::filter_map_bool_then, clippy::fn_to_numeric_cast, clippy::fn_to_numeric_cast_with_truncation, clippy::for_kv_map, clippy::from_over_into, clippy::from_str_radix_10, clippy::get_first, clippy::implicit_saturating_add, clippy::implicit_saturating_sub, clippy::inconsistent_digit_grouping, clippy::infallible_destructuring_match, clippy::inherent_to_string, clippy::init_numbered_fields, clippy::into_iter_on_ref, clippy::is_digit_ascii_radix, clippy::items_after_test_module, clippy::iter_cloned_collect, clippy::iter_next_slice, clippy::iter_nth_zero, clippy::iter_skip_next, clippy::just_underscores_and_digits, clippy::len_without_is_empty, clippy::len_zero, clippy::let_and_return, clippy::let_unit_value, clippy::main_recursion, clippy::manual_async_fn, clippy::manual_bits, clippy::manual_is_ascii_check, clippy::manual_is_finite, clippy::manual_is_infinite, clippy::manual_map, clippy::manual_next_back, clippy::manual_non_exhaustive, clippy::manual_range_contains, clippy::manual_saturating_arithmetic, clippy::manual_while_let_some, clippy::map_clone, clippy::map_collect_result_unit, clippy::match_like_matches_macro, clippy::match_overlapping_arm, clippy::match_ref_pats, clippy::match_result_ok, clippy::mem_replace_option_with_none, clippy::mem_replace_with_default, clippy::missing_safety_doc, clippy::mixed_case_hex_literals, clippy::module_inception, clippy::must_use_unit, clippy::mut_mutex_lock, clippy::needless_borrow, clippy::needless_borrows_for_generic_args, clippy::needless_doctest_main, clippy::needless_else, clippy::needless_late_init, clippy::needless_parens_on_range_literals, clippy::needless_pub_self, clippy::needless_range_loop, clippy::needless_return, clippy::needless_return_with_question_mark, clippy::neg_multiply, clippy::new_ret_no_self, clippy::new_without_default, clippy::non_minimal_cfg, clippy::obfuscated_if_else, clippy::ok_expect, clippy::op_ref, clippy::option_map_or_none, clippy::partialeq_to_none, clippy::print_literal, clippy::print_with_newline, clippy::println_empty_string, clippy::ptr_arg, clippy::ptr_eq, clippy::question_mark, clippy::redundant_closure, clippy::redundant_field_names, clippy::redundant_pattern, clippy::redundant_pattern_matching, clippy::redundant_static_lifetimes, clippy::result_map_or_into_option, clippy::result_unit_err, clippy::same_item_push, clippy::self_named_constructors, clippy::should_implement_trait, clippy::single_char_add_str, clippy::single_component_path_imports, clippy::single_match, clippy::string_extend_chars, clippy::tabs_in_doc_comments, clippy::to_digit_is_some, clippy::toplevel_ref_arg, clippy::trim_split_whitespace, clippy::unnecessary_fold, clippy::unnecessary_lazy_evaluations, clippy::unnecessary_mut_passed, clippy::unnecessary_owned_empty_strings, clippy::unsafe_removed_from_name, clippy::unused_unit, clippy::unusual_byte_groupings, clippy::unwrap_or_default, clippy::upper_case_acronyms, clippy::while_let_on_iterator, clippy::write_literal, clippy::write_with_newline, clippy::writeln_empty_string, clippy::wrong_self_convention, clippy::zero_ptr"##, }, children: &[ "clippy::assertions_on_constants", "clippy::assign_op_pattern", - "clippy::blacklisted_name", "clippy::blocks_in_if_conditions", "clippy::bool_assert_comparison", "clippy::borrow_interior_mutable_const", @@ -7546,21 +13829,34 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ "clippy::comparison_chain", "clippy::comparison_to_empty", "clippy::declare_interior_mutable_const", + "clippy::default_instead_of_iter_empty", + "clippy::disallowed_macros", + "clippy::disallowed_methods", + "clippy::disallowed_names", + "clippy::disallowed_types", "clippy::double_must_use", "clippy::double_neg", "clippy::duplicate_underscore_argument", "clippy::enum_variant_names", + "clippy::err_expect", "clippy::excessive_precision", "clippy::field_reassign_with_default", + "clippy::filter_map_bool_then", "clippy::fn_to_numeric_cast", "clippy::fn_to_numeric_cast_with_truncation", "clippy::for_kv_map", "clippy::from_over_into", "clippy::from_str_radix_10", + "clippy::get_first", + "clippy::implicit_saturating_add", + "clippy::implicit_saturating_sub", "clippy::inconsistent_digit_grouping", "clippy::infallible_destructuring_match", "clippy::inherent_to_string", + "clippy::init_numbered_fields", "clippy::into_iter_on_ref", + "clippy::is_digit_ascii_radix", + "clippy::items_after_test_module", "clippy::iter_cloned_collect", "clippy::iter_next_slice", "clippy::iter_nth_zero", @@ -7569,12 +13865,19 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ "clippy::len_without_is_empty", "clippy::len_zero", "clippy::let_and_return", + "clippy::let_unit_value", "clippy::main_recursion", "clippy::manual_async_fn", + "clippy::manual_bits", + "clippy::manual_is_ascii_check", + "clippy::manual_is_finite", + "clippy::manual_is_infinite", "clippy::manual_map", + "clippy::manual_next_back", "clippy::manual_non_exhaustive", "clippy::manual_range_contains", "clippy::manual_saturating_arithmetic", + "clippy::manual_while_let_some", "clippy::map_clone", "clippy::map_collect_result_unit", "clippy::match_like_matches_macro", @@ -7589,16 +13892,24 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ "clippy::must_use_unit", "clippy::mut_mutex_lock", "clippy::needless_borrow", + "clippy::needless_borrows_for_generic_args", "clippy::needless_doctest_main", + "clippy::needless_else", "clippy::needless_late_init", + "clippy::needless_parens_on_range_literals", + "clippy::needless_pub_self", "clippy::needless_range_loop", "clippy::needless_return", + "clippy::needless_return_with_question_mark", "clippy::neg_multiply", "clippy::new_ret_no_self", "clippy::new_without_default", + "clippy::non_minimal_cfg", + "clippy::obfuscated_if_else", "clippy::ok_expect", "clippy::op_ref", "clippy::option_map_or_none", + "clippy::partialeq_to_none", "clippy::print_literal", "clippy::print_with_newline", "clippy::println_empty_string", @@ -7622,14 +13933,15 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ "clippy::tabs_in_doc_comments", "clippy::to_digit_is_some", "clippy::toplevel_ref_arg", - "clippy::try_err", + "clippy::trim_split_whitespace", "clippy::unnecessary_fold", "clippy::unnecessary_lazy_evaluations", "clippy::unnecessary_mut_passed", + "clippy::unnecessary_owned_empty_strings", "clippy::unsafe_removed_from_name", "clippy::unused_unit", "clippy::unusual_byte_groupings", - "clippy::unwrap_or_else_default", + "clippy::unwrap_or_default", "clippy::upper_case_acronyms", "clippy::while_let_on_iterator", "clippy::write_literal", @@ -7642,25 +13954,58 @@ pub const CLIPPY_LINT_GROUPS: &[LintGroup] = &[ LintGroup { lint: Lint { label: "clippy::suspicious", - description: r##"lint group for: clippy::blanket_clippy_restriction_lints, clippy::empty_loop, clippy::eval_order_dependence, clippy::float_equality_without_abs, clippy::for_loops_over_fallibles, clippy::misrefactored_assign_op, clippy::mut_range_bound, clippy::mutable_key_type, clippy::octal_escapes, clippy::return_self_not_must_use, clippy::suspicious_arithmetic_impl, clippy::suspicious_assignment_formatting, clippy::suspicious_else_formatting, clippy::suspicious_map, clippy::suspicious_op_assign_impl, clippy::suspicious_unary_op_formatting"##, + description: r##"lint group for: clippy::almost_complete_range, clippy::arc_with_non_send_sync, clippy::await_holding_invalid_type, clippy::await_holding_lock, clippy::await_holding_refcell_ref, clippy::blanket_clippy_restriction_lints, clippy::cast_abs_to_unsigned, clippy::cast_enum_constructor, clippy::cast_enum_truncation, clippy::cast_nan_to_int, clippy::cast_slice_from_raw_parts, clippy::crate_in_macro_def, clippy::drop_non_drop, clippy::duplicate_mod, clippy::empty_loop, clippy::float_equality_without_abs, clippy::forget_non_drop, clippy::four_forward_slashes, clippy::from_raw_with_void_ptr, clippy::iter_out_of_bounds, clippy::let_underscore_future, clippy::lines_filter_map_ok, clippy::maybe_misused_cfg, clippy::misnamed_getters, clippy::misrefactored_assign_op, clippy::multi_assignments, clippy::mut_range_bound, clippy::mutable_key_type, clippy::no_effect_replace, clippy::non_canonical_clone_impl, clippy::non_canonical_partial_ord_impl, clippy::octal_escapes, clippy::path_ends_with_ext, clippy::permissions_set_readonly_false, clippy::print_in_format_impl, clippy::rc_clone_in_vec_init, clippy::single_range_in_vec_init, clippy::size_of_ref, clippy::suspicious_arithmetic_impl, clippy::suspicious_assignment_formatting, clippy::suspicious_command_arg_space, clippy::suspicious_doc_comments, clippy::suspicious_else_formatting, clippy::suspicious_map, clippy::suspicious_op_assign_impl, clippy::suspicious_to_owned, clippy::suspicious_unary_op_formatting, clippy::swap_ptr_to_ref, clippy::type_id_on_box"##, }, children: &[ + "clippy::almost_complete_range", + "clippy::arc_with_non_send_sync", + "clippy::await_holding_invalid_type", + "clippy::await_holding_lock", + "clippy::await_holding_refcell_ref", "clippy::blanket_clippy_restriction_lints", + "clippy::cast_abs_to_unsigned", + "clippy::cast_enum_constructor", + "clippy::cast_enum_truncation", + "clippy::cast_nan_to_int", + "clippy::cast_slice_from_raw_parts", + "clippy::crate_in_macro_def", + "clippy::drop_non_drop", + "clippy::duplicate_mod", "clippy::empty_loop", - "clippy::eval_order_dependence", "clippy::float_equality_without_abs", - "clippy::for_loops_over_fallibles", + "clippy::forget_non_drop", + "clippy::four_forward_slashes", + "clippy::from_raw_with_void_ptr", + "clippy::iter_out_of_bounds", + "clippy::let_underscore_future", + "clippy::lines_filter_map_ok", + "clippy::maybe_misused_cfg", + "clippy::misnamed_getters", "clippy::misrefactored_assign_op", + "clippy::multi_assignments", "clippy::mut_range_bound", "clippy::mutable_key_type", + "clippy::no_effect_replace", + "clippy::non_canonical_clone_impl", + "clippy::non_canonical_partial_ord_impl", "clippy::octal_escapes", - "clippy::return_self_not_must_use", + "clippy::path_ends_with_ext", + "clippy::permissions_set_readonly_false", + "clippy::print_in_format_impl", + "clippy::rc_clone_in_vec_init", + "clippy::single_range_in_vec_init", + "clippy::size_of_ref", "clippy::suspicious_arithmetic_impl", "clippy::suspicious_assignment_formatting", + "clippy::suspicious_command_arg_space", + "clippy::suspicious_doc_comments", "clippy::suspicious_else_formatting", "clippy::suspicious_map", "clippy::suspicious_op_assign_impl", + "clippy::suspicious_to_owned", "clippy::suspicious_unary_op_formatting", + "clippy::swap_ptr_to_ref", + "clippy::type_id_on_box", ], }, ]; diff --git a/src/tools/rust-analyzer/crates/ide-db/src/imports/import_assets.rs b/src/tools/rust-analyzer/crates/ide-db/src/imports/import_assets.rs index e475c5cd66b..da5a951f0b7 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/imports/import_assets.rs +++ b/src/tools/rust-analyzer/crates/ide-db/src/imports/import_assets.rs @@ -68,22 +68,29 @@ pub struct FirstSegmentUnresolved { pub enum NameToImport { /// Requires items with names that exactly match the given string, bool indicates case-sensitivity. Exact(String, bool), - /// Requires items with names that case-insensitively contain all letters from the string, + /// Requires items with names that match the given string by prefix, bool indicates case-sensitivity. + Prefix(String, bool), + /// Requires items with names contain all letters from the string, /// in the same order, but not necessary adjacent. - Fuzzy(String), + Fuzzy(String, bool), } impl NameToImport { pub fn exact_case_sensitive(s: String) -> NameToImport { NameToImport::Exact(s, true) } -} -impl NameToImport { + pub fn fuzzy(s: String) -> NameToImport { + // unless all chars are lowercase, we do a case sensitive search + let case_sensitive = s.chars().any(|c| c.is_uppercase()); + NameToImport::Fuzzy(s, case_sensitive) + } + pub fn text(&self) -> &str { match self { - NameToImport::Exact(text, _) => text.as_str(), - NameToImport::Fuzzy(text) => text.as_str(), + NameToImport::Prefix(text, _) + | NameToImport::Exact(text, _) + | NameToImport::Fuzzy(text, _) => text.as_str(), } } } @@ -165,7 +172,7 @@ impl ImportAssets { Some(Self { import_candidate: ImportCandidate::TraitMethod(TraitImportCandidate { receiver_ty, - assoc_item_name: NameToImport::Fuzzy(fuzzy_method_name), + assoc_item_name: NameToImport::fuzzy(fuzzy_method_name), }), module_with_candidate: module_with_method_call, candidate_node, @@ -228,12 +235,30 @@ impl ImportAssets { self.search_for(sema, None, prefer_no_std) } - pub fn path_fuzzy_name_to_exact(&mut self, case_sensitive: bool) { + /// Requires imports to by prefix instead of fuzzily. + pub fn path_fuzzy_name_to_prefix(&mut self) { + if let ImportCandidate::Path(PathImportCandidate { name: to_import, .. }) = + &mut self.import_candidate + { + let (name, case_sensitive) = match to_import { + NameToImport::Fuzzy(name, case_sensitive) => { + (std::mem::take(name), *case_sensitive) + } + _ => return, + }; + *to_import = NameToImport::Prefix(name, case_sensitive); + } + } + + /// Requires imports to match exactly instead of fuzzily. + pub fn path_fuzzy_name_to_exact(&mut self) { if let ImportCandidate::Path(PathImportCandidate { name: to_import, .. }) = &mut self.import_candidate { - let name = match to_import { - NameToImport::Fuzzy(name) => std::mem::take(name), + let (name, case_sensitive) = match to_import { + NameToImport::Fuzzy(name, case_sensitive) => { + (std::mem::take(name), *case_sensitive) + } _ => return, }; *to_import = NameToImport::Exact(name, case_sensitive); @@ -623,7 +648,7 @@ impl ImportCandidate { fuzzy_name: String, sema: &Semantics<'_, RootDatabase>, ) -> Option<Self> { - path_import_candidate(sema, qualifier, NameToImport::Fuzzy(fuzzy_name)) + path_import_candidate(sema, qualifier, NameToImport::fuzzy(fuzzy_name)) } } diff --git a/src/tools/rust-analyzer/crates/ide-db/src/imports/insert_use.rs b/src/tools/rust-analyzer/crates/ide-db/src/imports/insert_use.rs index 9be1d366349..a0cfd3836dd 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/imports/insert_use.rs +++ b/src/tools/rust-analyzer/crates/ide-db/src/imports/insert_use.rs @@ -9,7 +9,7 @@ use syntax::{ algo, ast::{ self, edit_in_place::Removable, make, AstNode, HasAttrs, HasModuleItem, HasVisibility, - PathSegmentKind, + PathSegmentKind, UseTree, }, ted, Direction, NodeOrToken, SyntaxKind, SyntaxNode, }; @@ -157,6 +157,29 @@ impl ImportScope { /// Insert an import path into the given file/node. A `merge` value of none indicates that no import merging is allowed to occur. pub fn insert_use(scope: &ImportScope, path: ast::Path, cfg: &InsertUseConfig) { + insert_use_with_alias_option(scope, path, cfg, None); +} + +pub fn insert_use_as_alias(scope: &ImportScope, path: ast::Path, cfg: &InsertUseConfig) { + let text: &str = "use foo as _"; + let parse = syntax::SourceFile::parse(text); + let node = parse + .tree() + .syntax() + .descendants() + .find_map(UseTree::cast) + .expect("Failed to make ast node `Rename`"); + let alias = node.rename(); + + insert_use_with_alias_option(scope, path, cfg, alias); +} + +fn insert_use_with_alias_option( + scope: &ImportScope, + path: ast::Path, + cfg: &InsertUseConfig, + alias: Option<ast::Rename>, +) { let _p = profile::span("insert_use"); let mut mb = match cfg.granularity { ImportGranularity::Crate => Some(MergeBehavior::Crate), @@ -176,7 +199,8 @@ pub fn insert_use(scope: &ImportScope, path: ast::Path, cfg: &InsertUseConfig) { } let use_item = - make::use_(None, make::use_tree(path.clone(), None, None, false)).clone_for_update(); + make::use_(None, make::use_tree(path.clone(), None, alias, false)).clone_for_update(); + // merge into existing imports if possible if let Some(mb) = mb { let filter = |it: &_| !(cfg.skip_glob_imports && ast::Use::is_simple_glob(it)); diff --git a/src/tools/rust-analyzer/crates/ide-db/src/imports/insert_use/tests.rs b/src/tools/rust-analyzer/crates/ide-db/src/imports/insert_use/tests.rs index b92e367f7e1..01d2f1970c3 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/imports/insert_use/tests.rs +++ b/src/tools/rust-analyzer/crates/ide-db/src/imports/insert_use/tests.rs @@ -993,6 +993,46 @@ use foo::bar::qux; ); } +#[test] +fn insert_with_renamed_import_simple_use() { + check_with_config( + "use self::foo::Foo", + r#" +use self::foo::Foo as _; +"#, + r#" +use self::foo::Foo; +"#, + &InsertUseConfig { + granularity: ImportGranularity::Crate, + prefix_kind: hir::PrefixKind::BySelf, + enforce_granularity: true, + group: true, + skip_glob_imports: true, + }, + ); +} + +#[test] +fn insert_with_renamed_import_complex_use() { + check_with_config( + "use self::foo::Foo;", + r#" +use self::foo::{self, Foo as _, Bar}; +"#, + r#" +use self::foo::{self, Foo, Bar}; +"#, + &InsertUseConfig { + granularity: ImportGranularity::Crate, + prefix_kind: hir::PrefixKind::BySelf, + enforce_granularity: true, + group: true, + skip_glob_imports: true, + }, + ); +} + fn check_with_config( path: &str, ra_fixture_before: &str, diff --git a/src/tools/rust-analyzer/crates/ide-db/src/imports/merge_imports.rs b/src/tools/rust-analyzer/crates/ide-db/src/imports/merge_imports.rs index 27b6321f3a7..ff84e9ffaee 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/imports/merge_imports.rs +++ b/src/tools/rust-analyzer/crates/ide-db/src/imports/merge_imports.rs @@ -78,6 +78,10 @@ fn try_merge_trees_mut(lhs: &ast::UseTree, rhs: &ast::UseTree, merge: MergeBehav { lhs.split_prefix(&lhs_prefix); rhs.split_prefix(&rhs_prefix); + } else { + ted::replace(lhs.syntax(), rhs.syntax()); + // we can safely return here, in this case `recursive_merge` doesn't do anything + return Some(()); } recursive_merge(lhs, rhs, merge) } @@ -123,6 +127,13 @@ fn recursive_merge(lhs: &ast::UseTree, rhs: &ast::UseTree, merge: MergeBehavior) // so they need to be handled explicitly .or_else(|| tree.star_token().map(|_| false)) }; + + if lhs_t.rename().and_then(|x| x.underscore_token()).is_some() { + ted::replace(lhs_t.syntax(), rhs_t.syntax()); + *lhs_t = rhs_t; + continue; + } + match (tree_contains_self(lhs_t), tree_contains_self(&rhs_t)) { (Some(true), None) => continue, (None, Some(true)) => { diff --git a/src/tools/rust-analyzer/crates/ide-db/src/items_locator.rs b/src/tools/rust-analyzer/crates/ide-db/src/items_locator.rs index 3f7a3ec2d0f..67ed44f08b7 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/items_locator.rs +++ b/src/tools/rust-analyzer/crates/ide-db/src/items_locator.rs @@ -31,26 +31,34 @@ pub fn items_with_name<'a>( ) }); + let prefix = matches!(name, NameToImport::Prefix(..)); let (mut local_query, mut external_query) = match name { - NameToImport::Exact(exact_name, case_sensitive) => { + NameToImport::Prefix(exact_name, case_sensitive) + | NameToImport::Exact(exact_name, case_sensitive) => { let mut local_query = symbol_index::Query::new(exact_name.clone()); - local_query.exact(); - - let external_query = import_map::Query::new(exact_name); - - ( - local_query, - if case_sensitive { external_query.case_sensitive() } else { external_query }, - ) + let mut external_query = import_map::Query::new(exact_name); + if prefix { + local_query.prefix(); + external_query = external_query.prefix(); + } else { + local_query.exact(); + external_query = external_query.exact(); + } + if case_sensitive { + local_query.case_sensitive(); + external_query = external_query.case_sensitive(); + } + (local_query, external_query) } - NameToImport::Fuzzy(fuzzy_search_string) => { + NameToImport::Fuzzy(fuzzy_search_string, case_sensitive) => { let mut local_query = symbol_index::Query::new(fuzzy_search_string.clone()); + local_query.fuzzy(); let mut external_query = import_map::Query::new(fuzzy_search_string.clone()) .fuzzy() .assoc_search_mode(assoc_item_search); - if fuzzy_search_string.to_lowercase() != fuzzy_search_string { + if case_sensitive { local_query.case_sensitive(); external_query = external_query.case_sensitive(); } diff --git a/src/tools/rust-analyzer/crates/ide-db/src/symbol_index.rs b/src/tools/rust-analyzer/crates/ide-db/src/symbol_index.rs index f699f999baf..3e89159c2c6 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/symbol_index.rs +++ b/src/tools/rust-analyzer/crates/ide-db/src/symbol_index.rs @@ -43,13 +43,20 @@ use triomphe::Arc; use crate::RootDatabase; +#[derive(Debug, Copy, Clone, PartialEq, Eq)] +enum SearchMode { + Fuzzy, + Exact, + Prefix, +} + #[derive(Debug)] pub struct Query { query: String, lowercased: String, only_types: bool, libs: bool, - exact: bool, + mode: SearchMode, case_sensitive: bool, limit: usize, } @@ -62,7 +69,7 @@ impl Query { lowercased, only_types: false, libs: false, - exact: false, + mode: SearchMode::Fuzzy, case_sensitive: false, limit: usize::max_value(), } @@ -76,8 +83,16 @@ impl Query { self.libs = true; } + pub fn fuzzy(&mut self) { + self.mode = SearchMode::Fuzzy; + } + pub fn exact(&mut self) { - self.exact = true; + self.mode = SearchMode::Exact; + } + + pub fn prefix(&mut self) { + self.mode = SearchMode::Prefix; } pub fn case_sensitive(&mut self) { @@ -329,13 +344,23 @@ impl Query { { continue; } - if self.exact { - if symbol.name != self.query { - continue; + let skip = match self.mode { + SearchMode::Fuzzy => { + self.case_sensitive + && self.query.chars().any(|c| !symbol.name.contains(c)) } - } else if self.case_sensitive - && self.query.chars().any(|c| !symbol.name.contains(c)) - { + SearchMode::Exact => symbol.name != self.query, + SearchMode::Prefix if self.case_sensitive => { + !symbol.name.starts_with(&self.query) + } + SearchMode::Prefix => symbol + .name + .chars() + .zip(self.lowercased.chars()) + .all(|(n, q)| n.to_lowercase().next() == Some(q)), + }; + + if skip { continue; } diff --git a/src/tools/rust-analyzer/crates/ide-db/src/tests/sourcegen_lints.rs b/src/tools/rust-analyzer/crates/ide-db/src/tests/sourcegen_lints.rs index c7d5f3613d4..c8cf87d3c20 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/tests/sourcegen_lints.rs +++ b/src/tools/rust-analyzer/crates/ide-db/src/tests/sourcegen_lints.rs @@ -1,4 +1,5 @@ -//! Generates descriptors structure for unstable feature from Unstable Book +//! Generates descriptor structures for unstable features from the unstable book +//! and lints from rustc, rustdoc, and clippy. use std::{borrow::Cow, fs, path::Path}; use itertools::Itertools; @@ -6,6 +7,8 @@ use stdx::format_to; use test_utils::project_root; use xshell::{cmd, Shell}; +const DESTINATION: &str = "crates/ide-db/src/generated/lints.rs"; + /// This clones rustc repo, and so is not worth to keep up-to-date. We update /// manually by un-ignoring the test from time to time. #[test] @@ -14,11 +17,21 @@ fn sourcegen_lint_completions() { let sh = &Shell::new().unwrap(); let rust_repo = project_root().join("./target/rust"); - if !rust_repo.exists() { + if rust_repo.exists() { + cmd!(sh, "git -C {rust_repo} pull --rebase").run().unwrap(); + } else { cmd!(sh, "git clone --depth=1 https://github.com/rust-lang/rust {rust_repo}") .run() .unwrap(); } + // need submodules for Cargo to parse the workspace correctly + cmd!( + sh, + "git -C {rust_repo} submodule update --init --recursive --depth=1 -- + compiler library src/tools" + ) + .run() + .unwrap(); let mut contents = String::from( r" @@ -27,17 +40,28 @@ pub struct Lint { pub label: &'static str, pub description: &'static str, } + pub struct LintGroup { pub lint: Lint, pub children: &'static [&'static str], } + ", ); generate_lint_descriptor(sh, &mut contents); contents.push('\n'); - generate_feature_descriptor(&mut contents, &rust_repo.join("src/doc/unstable-book/src")); + let cargo = std::env::var("CARGO").unwrap_or_else(|_| "cargo".to_string()); + let unstable_book = project_root().join("./target/unstable-book-gen"); + cmd!( + sh, + "{cargo} run --manifest-path {rust_repo}/src/tools/unstable-book-gen/Cargo.toml -- + {rust_repo}/library {rust_repo}/compiler {rust_repo}/src {unstable_book}" + ) + .run() + .unwrap(); + generate_feature_descriptor(&mut contents, &unstable_book.join("src")); contents.push('\n'); let lints_json = project_root().join("./target/clippy_lints.json"); @@ -51,41 +75,60 @@ pub struct LintGroup { let contents = sourcegen::add_preamble("sourcegen_lints", sourcegen::reformat(contents)); - let destination = project_root().join("crates/ide_db/src/generated/lints.rs"); + let destination = project_root().join(DESTINATION); sourcegen::ensure_file_contents(destination.as_path(), &contents); } +/// Parses the output of `rustdoc -Whelp` and prints `Lint` and `LintGroup` constants into `buf`. +/// +/// As of writing, the output of `rustc -Whelp` (not rustdoc) has the following format: +/// +/// ```text +/// Lint checks provided by rustc: +/// +/// name default meaning +/// ---- ------- ------- +/// +/// ... +/// +/// Lint groups provided by rustc: +/// +/// name sub-lints +/// ---- --------- +/// +/// ... +/// ``` +/// +/// `rustdoc -Whelp` (and any other custom `rustc` driver) adds another two +/// tables after the `rustc` ones, with a different title but the same format. fn generate_lint_descriptor(sh: &Shell, buf: &mut String) { - // FIXME: rustdoc currently requires an input file for -Whelp cc https://github.com/rust-lang/rust/pull/88831 - let file = project_root().join(file!()); - let stdout = cmd!(sh, "rustdoc -W help {file}").read().unwrap(); - let start_lints = stdout.find("---- ------- -------").unwrap(); - let start_lint_groups = stdout.find("---- ---------").unwrap(); - let start_lints_rustdoc = - stdout.find("Lint checks provided by plugins loaded by this crate:").unwrap(); - let start_lint_groups_rustdoc = - stdout.find("Lint groups provided by plugins loaded by this crate:").unwrap(); + let stdout = cmd!(sh, "rustdoc -Whelp").read().unwrap(); + let lints_pat = "---- ------- -------\n"; + let lint_groups_pat = "---- ---------\n"; + let lints = find_and_slice(&stdout, lints_pat); + let lint_groups = find_and_slice(lints, lint_groups_pat); + let lints_rustdoc = find_and_slice(lint_groups, lints_pat); + let lint_groups_rustdoc = find_and_slice(lints_rustdoc, lint_groups_pat); buf.push_str(r#"pub const DEFAULT_LINTS: &[Lint] = &["#); buf.push('\n'); - let lints = stdout[start_lints..].lines().skip(1).take_while(|l| !l.is_empty()).map(|line| { + let lints = lints.lines().take_while(|l| !l.is_empty()).map(|line| { let (name, rest) = line.trim().split_once(char::is_whitespace).unwrap(); let (_default_level, description) = rest.trim().split_once(char::is_whitespace).unwrap(); (name.trim(), Cow::Borrowed(description.trim()), vec![]) }); - let lint_groups = - stdout[start_lint_groups..].lines().skip(1).take_while(|l| !l.is_empty()).map(|line| { - let (name, lints) = line.trim().split_once(char::is_whitespace).unwrap(); - ( - name.trim(), - format!("lint group for: {}", lints.trim()).into(), - lints - .split_ascii_whitespace() - .map(|s| s.trim().trim_matches(',').replace('-', "_")) - .collect(), - ) - }); + let lint_groups = lint_groups.lines().take_while(|l| !l.is_empty()).map(|line| { + let (name, lints) = line.trim().split_once(char::is_whitespace).unwrap(); + ( + name.trim(), + format!("lint group for: {}", lints.trim()).into(), + lints + .split_ascii_whitespace() + .map(|s| s.trim().trim_matches(',').replace('-', "_")) + .collect(), + ) + }); let lints = lints .chain(lint_groups) @@ -94,7 +137,8 @@ fn generate_lint_descriptor(sh: &Shell, buf: &mut String) { for (name, description, ..) in &lints { push_lint_completion(buf, &name.replace('-', "_"), description); } - buf.push_str("];\n"); + buf.push_str("];\n\n"); + buf.push_str(r#"pub const DEFAULT_LINT_GROUPS: &[LintGroup] = &["#); for (name, description, children) in &lints { if !children.is_empty() { @@ -115,27 +159,23 @@ fn generate_lint_descriptor(sh: &Shell, buf: &mut String) { buf.push_str(r#"pub const RUSTDOC_LINTS: &[Lint] = &["#); buf.push('\n'); - let lints_rustdoc = - stdout[start_lints_rustdoc..].lines().skip(2).take_while(|l| !l.is_empty()).map(|line| { - let (name, rest) = line.trim().split_once(char::is_whitespace).unwrap(); - let (_default_level, description) = - rest.trim().split_once(char::is_whitespace).unwrap(); - (name.trim(), Cow::Borrowed(description.trim()), vec![]) - }); + let lints_rustdoc = lints_rustdoc.lines().take_while(|l| !l.is_empty()).map(|line| { + let (name, rest) = line.trim().split_once(char::is_whitespace).unwrap(); + let (_default_level, description) = rest.trim().split_once(char::is_whitespace).unwrap(); + (name.trim(), Cow::Borrowed(description.trim()), vec![]) + }); let lint_groups_rustdoc = - stdout[start_lint_groups_rustdoc..].lines().skip(2).take_while(|l| !l.is_empty()).map( - |line| { - let (name, lints) = line.trim().split_once(char::is_whitespace).unwrap(); - ( - name.trim(), - format!("lint group for: {}", lints.trim()).into(), - lints - .split_ascii_whitespace() - .map(|s| s.trim().trim_matches(',').replace('-', "_")) - .collect(), - ) - }, - ); + lint_groups_rustdoc.lines().take_while(|l| !l.is_empty()).map(|line| { + let (name, lints) = line.trim().split_once(char::is_whitespace).unwrap(); + ( + name.trim(), + format!("lint group for: {}", lints.trim()).into(), + lints + .split_ascii_whitespace() + .map(|s| s.trim().trim_matches(',').replace('-', "_")) + .collect(), + ) + }); let lints_rustdoc = lints_rustdoc .chain(lint_groups_rustdoc) @@ -145,7 +185,7 @@ fn generate_lint_descriptor(sh: &Shell, buf: &mut String) { for (name, description, ..) in &lints_rustdoc { push_lint_completion(buf, &name.replace('-', "_"), description) } - buf.push_str("];\n"); + buf.push_str("];\n\n"); buf.push_str(r#"pub const RUSTDOC_LINT_GROUPS: &[LintGroup] = &["#); for (name, description, children) in &lints_rustdoc { @@ -157,14 +197,24 @@ fn generate_lint_descriptor(sh: &Shell, buf: &mut String) { buf.push_str("];\n"); } +#[track_caller] +fn find_and_slice<'a>(i: &'a str, p: &str) -> &'a str { + let idx = i.find(p).unwrap(); + &i[idx + p.len()..] +} + +/// Parses the unstable book `src_dir` and prints a constant with the list of +/// unstable features into `buf`. +/// +/// It does this by looking for all `.md` files in the `language-features` and +/// `library-features` directories, and using the file name as the feature +/// name, and the file contents as the feature description. fn generate_feature_descriptor(buf: &mut String, src_dir: &Path) { let mut features = ["language-features", "library-features"] .into_iter() .flat_map(|it| sourcegen::list_files(&src_dir.join(it))) - .filter(|path| { - // Get all `.md ` files - path.extension().unwrap_or_default().to_str().unwrap_or_default() == "md" - }) + // Get all `.md` files + .filter(|path| path.extension() == Some("md".as_ref())) .map(|path| { let feature_ident = path.file_stem().unwrap().to_str().unwrap().replace('-', "_"); let doc = fs::read_to_string(path).unwrap(); @@ -196,7 +246,7 @@ fn generate_descriptor_clippy(buf: &mut String, path: &Path) { let mut clippy_lints: Vec<ClippyLint> = Vec::new(); let mut clippy_groups: std::collections::BTreeMap<String, Vec<String>> = Default::default(); - for line in file_content.lines().map(|line| line.trim()) { + for line in file_content.lines().map(str::trim) { if let Some(line) = line.strip_prefix(r#""id": ""#) { let clippy_lint = ClippyLint { id: line.strip_suffix(r#"","#).expect("should be suffixed by comma").into(), @@ -211,12 +261,19 @@ fn generate_descriptor_clippy(buf: &mut String, path: &Path) { .push(clippy_lints.last().unwrap().id.clone()); } } else if let Some(line) = line.strip_prefix(r#""docs": ""#) { - let prefix_to_strip = r#" ### What it does"#; - let line = match line.strip_prefix(prefix_to_strip) { - Some(line) => line, + let header = "### What it does"; + let line = match line.find(header) { + Some(idx) => &line[idx + header.len()..], None => { - eprintln!("unexpected clippy prefix for {}", clippy_lints.last().unwrap().id); - continue; + let id = &clippy_lints.last().unwrap().id; + // these just don't have the common header + let allowed = ["allow_attributes", "read_line_without_trim"]; + if allowed.contains(&id.as_str()) { + line + } else { + eprintln!("\nunexpected clippy prefix for {id}, line={line:?}\n",); + continue; + } } }; // Only take the description, any more than this is a lot of additional data we would embed into the exe diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/field_shorthand.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/field_shorthand.rs index 3b69640af9b..9ed8199ae4d 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/field_shorthand.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/field_shorthand.rs @@ -166,7 +166,7 @@ fn main() { check_diagnostics( r#" struct A { a: &'static str } -fn f(a: A) { let A { a: hello } = a; } +fn f(a: A) { let A { a: _hello } = a; } "#, ); check_diagnostics( @@ -181,12 +181,14 @@ fn f(a: A) { let A { 0: 0 } = a; } struct A { a: &'static str } fn f(a: A) { let A { a$0: a } = a; + _ = a; } "#, r#" struct A { a: &'static str } fn f(a: A) { let A { a } = a; + _ = a; } "#, ); @@ -196,12 +198,14 @@ fn f(a: A) { struct A { a: &'static str, b: &'static str } fn f(a: A) { let A { a$0: a, b } = a; + _ = (a, b); } "#, r#" struct A { a: &'static str, b: &'static str } fn f(a: A) { let A { a, b } = a; + _ = (a, b); } "#, ); diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/incorrect_case.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/incorrect_case.rs index 235062bf531..85dbb7e6f26 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/incorrect_case.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/incorrect_case.rs @@ -113,6 +113,31 @@ fn some_fn() { } "#, ); + + check_fix( + r#" +static S: i32 = M::A; + +mod $0M { + pub const A: i32 = 10; +} + +mod other { + use crate::M::A; +} +"#, + r#" +static S: i32 = m::A; + +mod m { + pub const A: i32 = 10; +} + +mod other { + use crate::m::A; +} +"#, + ); } #[test] @@ -175,10 +200,10 @@ fn NonSnakeCaseName() {} fn incorrect_function_params() { check_diagnostics( r#" -fn foo(SomeParam: u8) {} +fn foo(SomeParam: u8) { _ = SomeParam; } // ^^^^^^^^^ 💡 warn: Parameter `SomeParam` should have snake_case name, e.g. `some_param` -fn foo2(ok_param: &str, CAPS_PARAM: u8) {} +fn foo2(ok_param: &str, CAPS_PARAM: u8) { _ = (ok_param, CAPS_PARAM); } // ^^^^^^^^^^ 💡 warn: Parameter `CAPS_PARAM` should have snake_case name, e.g. `caps_param` "#, ); @@ -188,6 +213,7 @@ fn foo2(ok_param: &str, CAPS_PARAM: u8) {} fn incorrect_variable_names() { check_diagnostics( r#" +#[allow(unused)] fn foo() { let SOME_VALUE = 10; // ^^^^^^^^^^ 💡 warn: Variable `SOME_VALUE` should have snake_case name, e.g. `some_value` @@ -294,6 +320,7 @@ impl someStruct { // ^^^^^^^^ 💡 warn: Function `SomeFunc` should have snake_case name, e.g. `some_func` let WHY_VAR_IS_CAPS = 10; // ^^^^^^^^^^^^^^^ 💡 warn: Variable `WHY_VAR_IS_CAPS` should have snake_case name, e.g. `why_var_is_caps` + _ = WHY_VAR_IS_CAPS; } } "#, @@ -306,6 +333,7 @@ impl someStruct { r#" enum Option { Some, None } +#[allow(unused)] fn main() { match Option::None { None => (), @@ -322,6 +350,7 @@ fn main() { r#" enum Option { Some, None } +#[allow(unused)] fn main() { match Option::None { SOME_VAR @ None => (), @@ -349,7 +378,9 @@ enum E { } mod F { - fn CheckItWorksWithCrateAttr(BAD_NAME_HI: u8) {} + fn CheckItWorksWithCrateAttr(BAD_NAME_HI: u8) { + _ = BAD_NAME_HI; + } } "#, ); @@ -395,7 +426,7 @@ fn qualify() { #[test] // Issue #8809. fn parenthesized_parameter() { - check_diagnostics(r#"fn f((O): _) {}"#) + check_diagnostics(r#"fn f((O): _) { _ = O; }"#) } #[test] @@ -472,7 +503,9 @@ mod CheckBadStyle { mod F { #![allow(non_snake_case)] - fn CheckItWorksWithModAttr(BAD_NAME_HI: u8) {} + fn CheckItWorksWithModAttr(BAD_NAME_HI: u8) { + _ = BAD_NAME_HI; + } } #[allow(non_snake_case, non_camel_case_types)] @@ -510,17 +543,20 @@ fn NonSnakeCaseName(some_var: u8) -> u8 { #[deny(nonstandard_style)] mod CheckNonstandardStyle { + //^^^^^^^^^^^^^^^^^^^^^ 💡 error: Module `CheckNonstandardStyle` should have snake_case name, e.g. `check_nonstandard_style` fn HiImABadFnName() {} //^^^^^^^^^^^^^^ 💡 error: Function `HiImABadFnName` should have snake_case name, e.g. `hi_im_abad_fn_name` } #[deny(warnings)] mod CheckBadStyle { + //^^^^^^^^^^^^^ 💡 error: Module `CheckBadStyle` should have snake_case name, e.g. `check_bad_style` struct fooo; //^^^^ 💡 error: Structure `fooo` should have CamelCase name, e.g. `Fooo` } mod F { + //^ 💡 warn: Module `F` should have snake_case name, e.g. `f` #![deny(non_snake_case)] fn CheckItWorksWithModAttr() {} //^^^^^^^^^^^^^^^^^^^^^^^ 💡 error: Function `CheckItWorksWithModAttr` should have snake_case name, e.g. `check_it_works_with_mod_attr` @@ -641,4 +677,30 @@ enum E { "#, ); } + + #[test] + fn module_name_inline() { + check_diagnostics( + r#" +mod M { + //^ 💡 warn: Module `M` should have snake_case name, e.g. `m` + mod IncorrectCase {} + //^^^^^^^^^^^^^ 💡 warn: Module `IncorrectCase` should have snake_case name, e.g. `incorrect_case` +} +"#, + ); + } + + #[test] + fn module_name_decl() { + check_diagnostics( + r#" +//- /Foo.rs + +//- /main.rs +mod Foo; + //^^^ 💡 warn: Module `Foo` should have snake_case name, e.g. `foo` +"#, + ) + } } diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/mismatched_arg_count.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/mismatched_arg_count.rs index 8265e0b1c11..06ba13bcc55 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/mismatched_arg_count.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/mismatched_arg_count.rs @@ -23,12 +23,7 @@ pub(crate) fn mismatched_tuple_struct_pat_arg_count( Diagnostic::new( DiagnosticCode::RustcHardError("E0023"), message, - invalid_args_range( - ctx, - d.expr_or_pat.clone().map(|it| it.either(Into::into, Into::into)), - d.expected, - d.found, - ), + invalid_args_range(ctx, d.expr_or_pat.clone().map(Into::into), d.expected, d.found), ) } @@ -131,7 +126,7 @@ fn f() { zero(); } fn simple_free_fn_one() { check_diagnostics( r#" -fn one(arg: u8) {} +fn one(_arg: u8) {} fn f() { one(); } //^^ error: expected 1 argument, found 0 "#, @@ -139,7 +134,7 @@ fn f() { one(); } check_diagnostics( r#" -fn one(arg: u8) {} +fn one(_arg: u8) {} fn f() { one(1); } "#, ); @@ -176,7 +171,7 @@ fn f() { check_diagnostics( r#" struct S; -impl S { fn method(&self, arg: u8) {} } +impl S { fn method(&self, _arg: u8) {} } fn f() { S.method(); @@ -187,7 +182,7 @@ impl S { fn method(&self, arg: u8) {} } check_diagnostics( r#" struct S; -impl S { fn method(&self, arg: u8) {} } +impl S { fn method(&self, _arg: u8) {} } fn f() { S::method(&S, 0); @@ -335,8 +330,8 @@ struct S; impl S { fn method(#[cfg(NEVER)] self) {} - fn method2(#[cfg(NEVER)] self, arg: u8) {} - fn method3(self, #[cfg(NEVER)] arg: u8) {} + fn method2(#[cfg(NEVER)] self, _arg: u8) {} + fn method3(self, #[cfg(NEVER)] _arg: u8) {} } extern "C" { @@ -365,8 +360,8 @@ fn main() { r#" #[rustc_legacy_const_generics(1, 3)] fn mixed<const N1: &'static str, const N2: bool>( - a: u8, - b: i8, + _a: u8, + _b: i8, ) {} fn f() { @@ -376,8 +371,8 @@ fn f() { #[rustc_legacy_const_generics(1, 3)] fn b<const N1: u8, const N2: u8>( - a: u8, - b: u8, + _a: u8, + _b: u8, ) {} fn g() { @@ -403,7 +398,7 @@ fn f( // ^^ error: this pattern has 0 fields, but the corresponding tuple struct has 2 fields S(e, f, .., g, d): S // ^^^^^^^^^ error: this pattern has 4 fields, but the corresponding tuple struct has 2 fields -) {} +) { _ = (a, b, c, d, e, f, g); } "#, ) } diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/missing_fields.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/missing_fields.rs index acc31cd117a..c09be3fee7e 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/missing_fields.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/missing_fields.rs @@ -39,7 +39,7 @@ pub(crate) fn missing_fields(ctx: &DiagnosticsContext<'_>, d: &hir::MissingField d.field_list_parent_path .clone() .map(SyntaxNodePtr::from) - .unwrap_or_else(|| d.field_list_parent.clone().either(|it| it.into(), |it| it.into())), + .unwrap_or_else(|| d.field_list_parent.clone().into()), ); Diagnostic::new_with_syntax_node_ptr(ctx, DiagnosticCode::RustcHardError("E0063"), message, ptr) @@ -58,10 +58,8 @@ fn fixes(ctx: &DiagnosticsContext<'_>, d: &hir::MissingFields) -> Option<Vec<Ass let root = ctx.sema.db.parse_or_expand(d.file); - let current_module = match &d.field_list_parent { - Either::Left(ptr) => ctx.sema.scope(ptr.to_node(&root).syntax()).map(|it| it.module()), - Either::Right(ptr) => ctx.sema.scope(ptr.to_node(&root).syntax()).map(|it| it.module()), - }; + let current_module = + ctx.sema.scope(d.field_list_parent.to_node(&root).syntax()).map(|it| it.module()); let build_text_edit = |parent_syntax, new_syntax: &SyntaxNode, old_syntax| { let edit = { @@ -87,9 +85,8 @@ fn fixes(ctx: &DiagnosticsContext<'_>, d: &hir::MissingFields) -> Option<Vec<Ass )]) }; - match &d.field_list_parent { - Either::Left(record_expr) => { - let field_list_parent = record_expr.to_node(&root); + match &d.field_list_parent.to_node(&root) { + Either::Left(field_list_parent) => { let missing_fields = ctx.sema.record_literal_missing_fields(&field_list_parent); let mut locals = FxHashMap::default(); @@ -152,8 +149,7 @@ fn fixes(ctx: &DiagnosticsContext<'_>, d: &hir::MissingFields) -> Option<Vec<Ass old_field_list.syntax(), ) } - Either::Right(record_pat) => { - let field_list_parent = record_pat.to_node(&root); + Either::Right(field_list_parent) => { let missing_fields = ctx.sema.record_pattern_missing_fields(&field_list_parent); let old_field_list = field_list_parent.record_pat_field_list()?; @@ -290,6 +286,7 @@ fn x(a: S) { struct S { s: u32 } fn x(a: S) { let S { ref s } = a; + _ = s; } ", ) @@ -626,7 +623,7 @@ struct TestStruct { one: i32, two: i64 } fn test_fn() { let one = 1; - let s = TestStruct{ one, two: 2 }; + let _s = TestStruct{ one, two: 2 }; } "#, ); diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/missing_match_arms.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/missing_match_arms.rs index 06b03d3d198..84267d3d906 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/missing_match_arms.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/missing_match_arms.rs @@ -19,6 +19,7 @@ pub(crate) fn missing_match_arms( mod tests { use crate::tests::check_diagnostics; + #[track_caller] fn check_diagnostics_no_bails(ra_fixture: &str) { cov_mark::check_count!(validate_match_bailed_out, 0); crate::tests::check_diagnostics(ra_fixture) @@ -564,6 +565,7 @@ fn bang(never: !) { r#" enum Option<T> { Some(T), None } +#[allow(unused)] fn main() { // `Never` is deliberately not defined so that it's an uninferred type. match Option::<Never>::None { @@ -719,7 +721,7 @@ fn main() { r#" struct S { a: char} fn main(v: S) { - match v { S{ a } => {} } + match v { S{ a } => { _ = a; } } match v { S{ a: _x } => {} } match v { S{ a: 'a' } => {} } match v { S{..} => {} } @@ -901,7 +903,7 @@ enum E{ A, B } fn foo() { match &E::A { E::A => {} - x => {} + _x => {} } }", ); diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/missing_unsafe.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/missing_unsafe.rs index 70b26009bae..0f695b2745a 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/missing_unsafe.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/missing_unsafe.rs @@ -100,9 +100,9 @@ mod tests { r#" fn main() { let x = &5 as *const usize; - unsafe { let y = *x; } - let z = *x; -} //^^💡 error: this operation is unsafe and requires an unsafe function or block + unsafe { let _y = *x; } + let _z = *x; +} //^^💡 error: this operation is unsafe and requires an unsafe function or block "#, ) } @@ -116,13 +116,13 @@ struct HasUnsafe; impl HasUnsafe { unsafe fn unsafe_fn(&self) { let x = &5 as *const usize; - let y = *x; + let _y = *x; } } unsafe fn unsafe_fn() { let x = &5 as *const usize; - let y = *x; + let _y = *x; } fn main() { @@ -152,10 +152,10 @@ struct Ty { static mut STATIC_MUT: Ty = Ty { a: 0 }; fn main() { - let x = STATIC_MUT.a; - //^^^^^^^^^^💡 error: this operation is unsafe and requires an unsafe function or block + let _x = STATIC_MUT.a; + //^^^^^^^^^^💡 error: this operation is unsafe and requires an unsafe function or block unsafe { - let x = STATIC_MUT.a; + let _x = STATIC_MUT.a; } } "#, @@ -187,13 +187,13 @@ fn main() { r#" fn main() { let x = &5 as *const usize; - let z = *x$0; + let _z = *x$0; } "#, r#" fn main() { let x = &5 as *const usize; - let z = unsafe { *x }; + let _z = unsafe { *x }; } "#, ); @@ -231,7 +231,7 @@ struct S(usize); impl S { unsafe fn func(&self) { let x = &self.0 as *const usize; - let z = *x; + let _z = *x; } } fn main() { @@ -244,7 +244,7 @@ struct S(usize); impl S { unsafe fn func(&self) { let x = &self.0 as *const usize; - let z = *x; + let _z = *x; } } fn main() { @@ -267,7 +267,7 @@ struct Ty { static mut STATIC_MUT: Ty = Ty { a: 0 }; fn main() { - let x = STATIC_MUT$0.a; + let _x = STATIC_MUT$0.a; } "#, r#" @@ -278,7 +278,7 @@ struct Ty { static mut STATIC_MUT: Ty = Ty { a: 0 }; fn main() { - let x = unsafe { STATIC_MUT.a }; + let _x = unsafe { STATIC_MUT.a }; } "#, ) @@ -382,16 +382,16 @@ fn main() { static mut STATIC_MUT: u8 = 0; fn main() { - let x; - x = STATIC_MUT$0; + let _x; + _x = STATIC_MUT$0; } "#, r#" static mut STATIC_MUT: u8 = 0; fn main() { - let x; - x = unsafe { STATIC_MUT }; + let _x; + _x = unsafe { STATIC_MUT }; } "#, ) @@ -405,14 +405,14 @@ fn main() { static mut STATIC_MUT: u8 = 0; fn main() { - let x = STATIC_MUT$0 + 1; + let _x = STATIC_MUT$0 + 1; } "#, r#" static mut STATIC_MUT: u8 = 0; fn main() { - let x = unsafe { STATIC_MUT } + 1; + let _x = unsafe { STATIC_MUT } + 1; } "#, ) @@ -425,14 +425,14 @@ fn main() { static mut STATIC_MUT: u8 = 0; fn main() { - let x = &STATIC_MUT$0; + let _x = &STATIC_MUT$0; } "#, r#" static mut STATIC_MUT: u8 = 0; fn main() { - let x = unsafe { &STATIC_MUT }; + let _x = unsafe { &STATIC_MUT }; } "#, ) @@ -445,14 +445,14 @@ fn main() { static mut STATIC_MUT: u8 = 0; fn main() { - let x = &&STATIC_MUT$0; + let _x = &&STATIC_MUT$0; } "#, r#" static mut STATIC_MUT: u8 = 0; fn main() { - let x = unsafe { &&STATIC_MUT }; + let _x = unsafe { &&STATIC_MUT }; } "#, ) diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/moved_out_of_ref.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/moved_out_of_ref.rs index 3aa4aa97026..886aefeb575 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/moved_out_of_ref.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/moved_out_of_ref.rs @@ -29,6 +29,7 @@ fn main() { let a = &X; let b = *a; //^ error: cannot move `X` out of reference + _ = b; } "#, ); @@ -46,6 +47,7 @@ fn main() { let b = a.0; //^ error: cannot move `X` out of reference let y = a.1; + _ = (b, y); } "#, ); @@ -59,8 +61,8 @@ fn main() { struct X; fn main() { static S: X = X; - let s = S; - //^ error: cannot move `X` out of reference + let _s = S; + //^^ error: cannot move `X` out of reference } "#, ); @@ -165,7 +167,7 @@ enum X { fn main() { let x = &X::Bar; - let c = || match *x { + let _c = || match *x { X::Foo(t) => t, _ => 5, }; @@ -173,4 +175,19 @@ fn main() { "#, ); } + + #[test] + fn regression_15787() { + check_diagnostics( + r#" +//- minicore: coerce_unsized, slice, copy +fn foo(mut slice: &[u32]) -> usize { + slice = match slice { + [0, rest @ ..] | rest => rest, + }; + slice.len() +} +"#, + ); + } } diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/mutability_errors.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/mutability_errors.rs index d056e5c85cc..ee096a100aa 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/mutability_errors.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/mutability_errors.rs @@ -324,6 +324,7 @@ fn main() { let x_own = 2; let ref mut x_ref = x_own; //^^^^^^^^^^^^^ 💡 error: cannot mutate immutable variable `x_own` + _ = x_ref; } "#, ); @@ -331,7 +332,7 @@ fn main() { r#" struct Foo; impl Foo { - fn method(&mut self, x: i32) {} + fn method(&mut self, _x: i32) {} } fn main() { let x = Foo; @@ -391,6 +392,7 @@ fn main() { //^^^^^ 💡 warn: variable does not need to be mutable x = 7; //^^^^^ 💡 error: cannot mutate immutable variable `x` + _ = y; } } } @@ -404,12 +406,14 @@ fn main() { // there would be no mutability error for locals in dead code. Rustc tries to // not emit `unused_mut` in this case, but since it works without `mut`, and // special casing it is not trivial, we emit it. + + // Update: now MIR based `unused-variable` is taking over `unused-mut` for the same reason. check_diagnostics( r#" fn main() { return; let mut x = 2; - //^^^^^ 💡 warn: variable does not need to be mutable + //^^^^^ warn: unused variable &mut x; } "#, @@ -419,7 +423,7 @@ fn main() { fn main() { loop {} let mut x = 2; - //^^^^^ 💡 warn: variable does not need to be mutable + //^^^^^ warn: unused variable &mut x; } "#, @@ -440,7 +444,7 @@ fn main(b: bool) { g(); } let mut x = 2; - //^^^^^ 💡 warn: variable does not need to be mutable + //^^^^^ warn: unused variable &mut x; } "#, @@ -454,7 +458,7 @@ fn main(b: bool) { return; } let mut x = 2; - //^^^^^ 💡 warn: variable does not need to be mutable + //^^^^^ warn: unused variable &mut x; } "#, @@ -536,6 +540,7 @@ fn main() { (k @ 5, ref mut t) if { continue; } => { //^^^^^^^^^ 💡 error: cannot mutate immutable variable `z` *t = 5; + _ = k; } _ => { let y = (1, 2); @@ -588,6 +593,7 @@ fn main() { b = 1; c = (2, 3); d = 3; + _ = (c, b, d); } } "#, @@ -600,6 +606,7 @@ fn main() { r#" fn f(mut x: i32) { //^^^^^ 💡 warn: variable does not need to be mutable + f(x + 2); } "#, ); @@ -615,8 +622,11 @@ fn f(x: i32) { r#" fn f((x, y): (i32, i32)) { let t = [0; 2]; - x = 5; - //^^^^^ 💡 error: cannot mutate immutable variable `x` + x = 5; + //^^^^^ 💡 error: cannot mutate immutable variable `x` + _ = x; + _ = y; + _ = t; } "#, ); @@ -645,6 +655,7 @@ fn f(x: [(i32, u8); 10]) { //^^^^^ 💡 warn: variable does not need to be mutable a = 2; //^^^^^ 💡 error: cannot mutate immutable variable `a` + _ = b; } } "#, @@ -666,6 +677,7 @@ fn f(x: [(i32, u8); 10]) { //^^^^^ 💡 error: cannot mutate immutable variable `a` c = 2; //^^^^^ 💡 error: cannot mutate immutable variable `c` + _ = (b, d); } } } @@ -696,18 +708,18 @@ fn f() { fn overloaded_index() { check_diagnostics( r#" -//- minicore: index +//- minicore: index, copy use core::ops::{Index, IndexMut}; struct Foo; impl Index<usize> for Foo { type Output = (i32, u8); - fn index(&self, index: usize) -> &(i32, u8) { + fn index(&self, _index: usize) -> &(i32, u8) { &(5, 2) } } impl IndexMut<usize> for Foo { - fn index_mut(&mut self, index: usize) -> &mut (i32, u8) { + fn index_mut(&mut self, _index: usize) -> &mut (i32, u8) { &mut (5, 2) } } @@ -715,26 +727,32 @@ fn f() { let mut x = Foo; //^^^^^ 💡 warn: variable does not need to be mutable let y = &x[2]; + _ = (x, y); let x = Foo; let y = &mut x[2]; //^💡 error: cannot mutate immutable variable `x` + _ = (x, y); let mut x = &mut Foo; //^^^^^ 💡 warn: variable does not need to be mutable let y: &mut (i32, u8) = &mut x[2]; + _ = (x, y); let x = Foo; let ref mut y = x[7]; //^ 💡 error: cannot mutate immutable variable `x` + _ = (x, y); let (ref mut y, _) = x[3]; //^ 💡 error: cannot mutate immutable variable `x` + _ = y; match x[10] { //^ 💡 error: cannot mutate immutable variable `x` - (ref y, _) => (), - (_, ref mut y) => (), + (ref y, 5) => _ = y, + (_, ref mut y) => _ = y, } let mut x = Foo; let mut i = 5; //^^^^^ 💡 warn: variable does not need to be mutable let y = &mut x[i]; + _ = y; } "#, ); @@ -744,7 +762,7 @@ fn f() { fn overloaded_deref() { check_diagnostics( r#" -//- minicore: deref_mut +//- minicore: deref_mut, copy use core::ops::{Deref, DerefMut}; struct Foo; @@ -763,21 +781,27 @@ fn f() { let mut x = Foo; //^^^^^ 💡 warn: variable does not need to be mutable let y = &*x; + _ = (x, y); let x = Foo; let y = &mut *x; //^^ 💡 error: cannot mutate immutable variable `x` + _ = (x, y); let x = Foo; + //^ warn: unused variable let x = Foo; let y: &mut (i32, u8) = &mut x; //^^^^^^ 💡 error: cannot mutate immutable variable `x` + _ = (x, y); let ref mut y = *x; //^^ 💡 error: cannot mutate immutable variable `x` + _ = y; let (ref mut y, _) = *x; //^^ 💡 error: cannot mutate immutable variable `x` + _ = y; match *x { //^^ 💡 error: cannot mutate immutable variable `x` - (ref y, _) => (), - (_, ref mut y) => (), + (ref y, 5) => _ = y, + (_, ref mut y) => _ = y, } } "#, @@ -866,6 +890,7 @@ pub fn test() { data: 0 } ); + _ = tree; } "#, ); @@ -925,6 +950,7 @@ fn fn_once(mut x: impl FnOnce(u8) -> u8) -> u8 { let x = X; let closure4 = || { x.mutate(); }; //^ 💡 error: cannot mutate immutable variable `x` + _ = (closure2, closure3, closure4); } "#, ); @@ -941,7 +967,9 @@ fn fn_once(mut x: impl FnOnce(u8) -> u8) -> u8 { z = 3; let mut k = z; //^^^^^ 💡 warn: variable does not need to be mutable + _ = k; }; + _ = (x, closure); } "#, ); @@ -958,6 +986,7 @@ fn f() { } } }; + _ = closure; } "#, ); @@ -972,7 +1001,8 @@ fn f() { let mut x = X; let c2 = || { x = X; x }; let mut x = X; - let c2 = move || { x = X; }; + let c3 = move || { x = X; }; + _ = (c1, c2, c3); } "#, ); @@ -1023,7 +1053,7 @@ fn x(t: &[u8]) { a = 2; //^^^^^ 💡 error: cannot mutate immutable variable `a` - + _ = b; } _ => {} } @@ -1079,6 +1109,7 @@ fn f() { let x = Box::new(5); let closure = || *x = 2; //^ 💡 error: cannot mutate immutable variable `x` + _ = closure; } "#, ); @@ -1156,6 +1187,7 @@ macro_rules! mac { fn main2() { let mut x = mac![]; //^^^^^ 💡 warn: variable does not need to be mutable + _ = x; } "#, ); diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/no_such_field.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/no_such_field.rs index 290c16c9d24..ee8a9c95793 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/no_such_field.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/no_such_field.rs @@ -13,7 +13,7 @@ use crate::{fix, Assist, Diagnostic, DiagnosticCode, DiagnosticsContext}; // // This diagnostic is triggered if created structure does not have field provided in record. pub(crate) fn no_such_field(ctx: &DiagnosticsContext<'_>, d: &hir::NoSuchField) -> Diagnostic { - let node = d.field.clone().map(|it| it.either(Into::into, Into::into)); + let node = d.field.clone().map(Into::into); if d.private { // FIXME: quickfix to add required visibility Diagnostic::new_with_syntax_node_ptr( @@ -35,15 +35,13 @@ pub(crate) fn no_such_field(ctx: &DiagnosticsContext<'_>, d: &hir::NoSuchField) fn fixes(ctx: &DiagnosticsContext<'_>, d: &hir::NoSuchField) -> Option<Vec<Assist>> { // FIXME: quickfix for pattern - match &d.field.value { - Either::Left(ptr) => { - let root = ctx.sema.db.parse_or_expand(d.field.file_id); - missing_record_expr_field_fixes( - &ctx.sema, - d.field.file_id.original_file(ctx.sema.db), - &ptr.to_node(&root), - ) - } + let root = ctx.sema.db.parse_or_expand(d.field.file_id); + match &d.field.value.to_node(&root) { + Either::Left(node) => missing_record_expr_field_fixes( + &ctx.sema, + d.field.file_id.original_file(ctx.sema.db), + node, + ), _ => None, } } diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/private_assoc_item.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/private_assoc_item.rs index c44d28e77f6..a828b8b4fd2 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/private_assoc_item.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/private_assoc_item.rs @@ -1,5 +1,3 @@ -use either::Either; - use crate::{Diagnostic, DiagnosticCode, DiagnosticsContext}; // Diagnostic: private-assoc-item @@ -28,13 +26,7 @@ pub(crate) fn private_assoc_item( }, name, ), - d.expr_or_pat.clone().map(|it| match it { - Either::Left(it) => it.into(), - Either::Right(it) => match it { - Either::Left(it) => it.into(), - Either::Right(it) => it.into(), - }, - }), + d.expr_or_pat.clone().map(Into::into), ) } diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/replace_filter_map_next_with_find_map.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/replace_filter_map_next_with_find_map.rs index 083ef3e8dc1..d15233d15c2 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/replace_filter_map_next_with_find_map.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/replace_filter_map_next_with_find_map.rs @@ -74,8 +74,8 @@ mod tests { r#" //- minicore: iterators fn foo() { - let m = core::iter::repeat(()).filter_map(|()| Some(92)).next(); -} //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 💡 weak: replace filter_map(..).next() with find_map(..) + let _m = core::iter::repeat(()).filter_map(|()| Some(92)).next(); +} //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 💡 weak: replace filter_map(..).next() with find_map(..) "#, ); } @@ -117,7 +117,7 @@ fn foo() { fn foo() { let mut m = core::iter::repeat(()) .filter_map(|()| Some(92)); - let n = m.next(); + let _n = m.next(); } "#, ); @@ -148,22 +148,22 @@ fn foo() { fn foo() { #[allow(clippy::filter_map_next)] - let m = core::iter::repeat(()).filter_map(|()| Some(92)).next(); + let _m = core::iter::repeat(()).filter_map(|()| Some(92)).next(); } #[deny(clippy::filter_map_next)] fn foo() { - let m = core::iter::repeat(()).filter_map(|()| Some(92)).next(); -} //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 💡 error: replace filter_map(..).next() with find_map(..) + let _m = core::iter::repeat(()).filter_map(|()| Some(92)).next(); +} //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 💡 error: replace filter_map(..).next() with find_map(..) fn foo() { - let m = core::iter::repeat(()).filter_map(|()| Some(92)).next(); -} //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 💡 weak: replace filter_map(..).next() with find_map(..) + let _m = core::iter::repeat(()).filter_map(|()| Some(92)).next(); +} //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 💡 weak: replace filter_map(..).next() with find_map(..) #[warn(clippy::filter_map_next)] fn foo() { - let m = core::iter::repeat(()).filter_map(|()| Some(92)).next(); -} //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 💡 warn: replace filter_map(..).next() with find_map(..) + let _m = core::iter::repeat(()).filter_map(|()| Some(92)).next(); +} //^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 💡 warn: replace filter_map(..).next() with find_map(..) "#, ); diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/type_mismatch.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/type_mismatch.rs index 15bd28c00df..14454fe8dc4 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/type_mismatch.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/type_mismatch.rs @@ -1,4 +1,3 @@ -use either::Either; use hir::{db::ExpandDatabase, ClosureStyle, HirDisplay, InFile, Type}; use ide_db::{famous_defs::FamousDefs, source_change::SourceChange}; use syntax::{ @@ -14,9 +13,11 @@ use crate::{adjusted_display_range, fix, Assist, Diagnostic, DiagnosticCode, Dia // This diagnostic is triggered when the type of an expression or pattern does not match // the expected type. pub(crate) fn type_mismatch(ctx: &DiagnosticsContext<'_>, d: &hir::TypeMismatch) -> Diagnostic { - let display_range = match &d.expr_or_pat { - Either::Left(expr) => { - adjusted_display_range::<ast::Expr>(ctx, expr.clone().map(|it| it.into()), &|expr| { + let display_range = match &d.expr_or_pat.value { + expr if ast::Expr::can_cast(expr.kind()) => adjusted_display_range::<ast::Expr>( + ctx, + InFile { file_id: d.expr_or_pat.file_id, value: expr.syntax_node_ptr() }, + &|expr| { let salient_token_range = match expr { ast::Expr::IfExpr(it) => it.if_token()?.text_range(), ast::Expr::LoopExpr(it) => it.loop_token()?.text_range(), @@ -32,10 +33,15 @@ pub(crate) fn type_mismatch(ctx: &DiagnosticsContext<'_>, d: &hir::TypeMismatch) cov_mark::hit!(type_mismatch_range_adjustment); Some(salient_token_range) - }) - } - Either::Right(pat) => { - ctx.sema.diagnostics_display_range(pat.clone().map(|it| it.into())).range + }, + ), + pat => { + ctx.sema + .diagnostics_display_range(InFile { + file_id: d.expr_or_pat.file_id, + value: pat.syntax_node_ptr(), + }) + .range } }; let mut diag = Diagnostic::new( @@ -57,14 +63,12 @@ pub(crate) fn type_mismatch(ctx: &DiagnosticsContext<'_>, d: &hir::TypeMismatch) fn fixes(ctx: &DiagnosticsContext<'_>, d: &hir::TypeMismatch) -> Option<Vec<Assist>> { let mut fixes = Vec::new(); - match &d.expr_or_pat { - Either::Left(expr_ptr) => { - add_reference(ctx, d, expr_ptr, &mut fixes); - add_missing_ok_or_some(ctx, d, expr_ptr, &mut fixes); - remove_semicolon(ctx, d, expr_ptr, &mut fixes); - str_ref_to_owned(ctx, d, expr_ptr, &mut fixes); - } - Either::Right(_pat_ptr) => {} + if let Some(expr_ptr) = d.expr_or_pat.value.clone().cast::<ast::Expr>() { + let expr_ptr = &InFile { file_id: d.expr_or_pat.file_id, value: expr_ptr.clone() }; + add_reference(ctx, d, expr_ptr, &mut fixes); + add_missing_ok_or_some(ctx, d, expr_ptr, &mut fixes); + remove_semicolon(ctx, d, expr_ptr, &mut fixes); + str_ref_to_owned(ctx, d, expr_ptr, &mut fixes); } if fixes.is_empty() { @@ -205,7 +209,7 @@ fn main() { test(123); //^^^ 💡 error: expected &i32, found i32 } -fn test(arg: &i32) {} +fn test(_arg: &i32) {} "#, ); } @@ -217,13 +221,13 @@ fn test(arg: &i32) {} fn main() { test(123$0); } -fn test(arg: &i32) {} +fn test(_arg: &i32) {} "#, r#" fn main() { test(&123); } -fn test(arg: &i32) {} +fn test(_arg: &i32) {} "#, ); } @@ -235,13 +239,13 @@ fn test(arg: &i32) {} fn main() { test($0123); } -fn test(arg: &mut i32) {} +fn test(_arg: &mut i32) {} "#, r#" fn main() { test(&mut 123); } -fn test(arg: &mut i32) {} +fn test(_arg: &mut i32) {} "#, ); } @@ -254,13 +258,13 @@ fn test(arg: &mut i32) {} fn main() { test($0[1, 2, 3]); } -fn test(arg: &[i32]) {} +fn test(_arg: &[i32]) {} "#, r#" fn main() { test(&[1, 2, 3]); } -fn test(arg: &[i32]) {} +fn test(_arg: &[i32]) {} "#, ); } @@ -279,7 +283,7 @@ impl core::ops::Deref for Foo { fn main() { test($0Foo); } -fn test(arg: &Bar) {} +fn test(_arg: &Bar) {} "#, r#" struct Foo; @@ -291,7 +295,7 @@ impl core::ops::Deref for Foo { fn main() { test(&Foo); } -fn test(arg: &Bar) {} +fn test(_arg: &Bar) {} "#, ); } @@ -305,7 +309,7 @@ fn main() { } struct Test; impl Test { - fn call_by_ref(&self, arg: &i32) {} + fn call_by_ref(&self, _arg: &i32) {} } "#, r#" @@ -314,7 +318,7 @@ fn main() { } struct Test; impl Test { - fn call_by_ref(&self, arg: &i32) {} + fn call_by_ref(&self, _arg: &i32) {} } "#, ); @@ -345,7 +349,7 @@ macro_rules! thousand { 1000_u64 }; } -fn test(foo: &u64) {} +fn test(_foo: &u64) {} fn main() { test($0thousand!()); } @@ -356,7 +360,7 @@ macro_rules! thousand { 1000_u64 }; } -fn test(foo: &u64) {} +fn test(_foo: &u64) {} fn main() { test(&thousand!()); } @@ -369,12 +373,12 @@ fn main() { check_fix( r#" fn main() { - let test: &mut i32 = $0123; + let _test: &mut i32 = $0123; } "#, r#" fn main() { - let test: &mut i32 = &mut 123; + let _test: &mut i32 = &mut 123; } "#, ); @@ -411,7 +415,7 @@ fn div(x: i32, y: i32) -> Option<i32> { fn f<const N: u64>() -> Rate<N> { // FIXME: add some error loop {} } - fn run(t: Rate<5>) { + fn run(_t: Rate<5>) { } fn main() { run(f()) // FIXME: remove this error @@ -426,7 +430,7 @@ fn div(x: i32, y: i32) -> Option<i32> { check_diagnostics( r#" pub struct Rate<T, const NOM: u32, const DENOM: u32>(T); - fn run(t: Rate<u32, 1, 1>) { + fn run(_t: Rate<u32, 1, 1>) { } fn main() { run(Rate::<_, _, _>(5)); @@ -650,7 +654,7 @@ fn h() { r#" struct X<T>(T); -fn foo(x: X<Unknown>) {} +fn foo(_x: X<Unknown>) {} fn test1() { // Unknown might be `i32`, so we should not emit type mismatch here. foo(X(42)); diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/typed_hole.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/typed_hole.rs index 4af67227115..4e215a89d79 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/typed_hole.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/typed_hole.rs @@ -142,8 +142,8 @@ fn t<T>() -> T { loop {} } check_diagnostics( r#" fn main() { - let x = [(); _]; - let y: [(); 10] = [(); _]; + let _x = [(); _]; + let _y: [(); 10] = [(); _]; _ = 0; (_,) = (1,); } diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unused_variables.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unused_variables.rs new file mode 100644 index 00000000000..28ccf474b40 --- /dev/null +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/unused_variables.rs @@ -0,0 +1,111 @@ +use crate::{Diagnostic, DiagnosticCode, DiagnosticsContext}; + +// Diagnostic: unused-variables +// +// This diagnostic is triggered when a local variable is not used. +pub(crate) fn unused_variables( + ctx: &DiagnosticsContext<'_>, + d: &hir::UnusedVariable, +) -> Diagnostic { + let ast = d.local.primary_source(ctx.sema.db).syntax_ptr(); + Diagnostic::new_with_syntax_node_ptr( + ctx, + DiagnosticCode::RustcLint("unused_variables"), + "unused variable", + ast, + ) + .experimental() +} + +#[cfg(test)] +mod tests { + use crate::tests::check_diagnostics; + + #[test] + fn unused_variables_simple() { + check_diagnostics( + r#" +//- minicore: fn +struct Foo { f1: i32, f2: i64 } + +fn f(kkk: i32) {} + //^^^ warn: unused variable +fn main() { + let a = 2; + //^ warn: unused variable + let b = 5; + // note: `unused variable` implies `unused mut`, so we should not emit both at the same time. + let mut c = f(b); + //^^^^^ warn: unused variable + let (d, e) = (3, 5); + //^ warn: unused variable + let _ = e; + let f1 = 2; + let f2 = 5; + let f = Foo { f1, f2 }; + match f { + Foo { f1, f2 } => { + //^^ warn: unused variable + _ = f2; + } + } + let g = false; + if g {} + let h: fn() -> i32 = || 2; + let i = h(); + //^ warn: unused variable +} +"#, + ); + } + + #[test] + fn unused_self() { + check_diagnostics( + r#" +struct S { +} +impl S { + fn owned_self(self, u: i32) {} + //^ warn: unused variable + fn ref_self(&self, u: i32) {} + //^ warn: unused variable + fn ref_mut_self(&mut self, u: i32) {} + //^ warn: unused variable + fn owned_mut_self(mut self) {} + //^^^^^^^^ 💡 warn: variable does not need to be mutable + +} +"#, + ); + } + + #[test] + fn allow_unused_variables_for_identifiers_starting_with_underline() { + check_diagnostics( + r#" +fn main() { + let _x = 2; +} +"#, + ); + } + + #[test] + fn respect_lint_attributes_for_unused_variables() { + check_diagnostics( + r#" +fn main() { + #[allow(unused_variables)] + let x = 2; +} + +#[deny(unused)] +fn main2() { + let x = 2; + //^ error: unused variable +} +"#, + ); + } +} diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/lib.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/lib.rs index ebe197a6790..fe5567544e8 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/lib.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/lib.rs @@ -56,6 +56,7 @@ mod handlers { pub(crate) mod unresolved_proc_macro; pub(crate) mod undeclared_label; pub(crate) mod unreachable_label; + pub(crate) mod unused_variables; // The handlers below are unusual, the implement the diagnostics as well. pub(crate) mod field_shorthand; @@ -368,6 +369,7 @@ pub fn diagnostics( AnyDiagnostic::UnresolvedModule(d) => handlers::unresolved_module::unresolved_module(&ctx, &d), AnyDiagnostic::UnresolvedProcMacro(d) => handlers::unresolved_proc_macro::unresolved_proc_macro(&ctx, &d, config.proc_macros_enabled, config.proc_attr_macros_enabled), AnyDiagnostic::UnusedMut(d) => handlers::mutability_errors::unused_mut(&ctx, &d), + AnyDiagnostic::UnusedVariable(d) => handlers::unused_variables::unused_variables(&ctx, &d), AnyDiagnostic::BreakOutsideOfLoop(d) => handlers::break_outside_of_loop::break_outside_of_loop(&ctx, &d), AnyDiagnostic::MismatchedTupleStructPatArgCount(d) => handlers::mismatched_arg_count::mismatched_tuple_struct_pat_arg_count(&ctx, &d), }; diff --git a/src/tools/rust-analyzer/crates/ide/src/doc_links.rs b/src/tools/rust-analyzer/crates/ide/src/doc_links.rs index 37a17762216..ac15b6aba61 100644 --- a/src/tools/rust-analyzer/crates/ide/src/doc_links.rs +++ b/src/tools/rust-analyzer/crates/ide/src/doc_links.rs @@ -602,7 +602,17 @@ fn filename_and_frag_for_def( } Definition::Const(c) => format!("const.{}.html", c.name(db)?.display(db.upcast())), Definition::Static(s) => format!("static.{}.html", s.name(db).display(db.upcast())), - Definition::Macro(mac) => format!("macro.{}.html", mac.name(db).display(db.upcast())), + Definition::Macro(mac) => match mac.kind(db) { + hir::MacroKind::Declarative + | hir::MacroKind::BuiltIn + | hir::MacroKind::Attr + | hir::MacroKind::ProcMacro => { + format!("macro.{}.html", mac.name(db).display(db.upcast())) + } + hir::MacroKind::Derive => { + format!("derive.{}.html", mac.name(db).display(db.upcast())) + } + }, Definition::Field(field) => { let def = match field.parent_def(db) { hir::VariantDef::Struct(it) => Definition::Adt(it.into()), diff --git a/src/tools/rust-analyzer/crates/ide/src/hover.rs b/src/tools/rust-analyzer/crates/ide/src/hover.rs index 21934b9480e..e0b64fe7988 100644 --- a/src/tools/rust-analyzer/crates/ide/src/hover.rs +++ b/src/tools/rust-analyzer/crates/ide/src/hover.rs @@ -180,26 +180,24 @@ fn hover_simple( descended() .filter_map(|token| { let node = token.parent()?; - let class = IdentClass::classify_token(sema, token)?; - if let IdentClass::Operator(OperatorClass::Await(_)) = class { + match IdentClass::classify_node(sema, &node)? { // It's better for us to fall back to the keyword hover here, // rendering poll is very confusing - return None; + IdentClass::Operator(OperatorClass::Await(_)) => None, + + IdentClass::NameRefClass(NameRefClass::ExternCrateShorthand { + decl, + .. + }) => Some(vec![(Definition::ExternCrateDecl(decl), node)]), + + class => Some( + class + .definitions() + .into_iter() + .zip(iter::repeat(node)) + .collect::<Vec<_>>(), + ), } - if let IdentClass::NameRefClass(NameRefClass::ExternCrateShorthand { - decl, - .. - }) = class - { - return Some(vec![(Definition::ExternCrateDecl(decl), node)]); - } - Some( - class - .definitions() - .into_iter() - .zip(iter::once(node).cycle()) - .collect::<Vec<_>>(), - ) }) .flatten() .unique_by(|&(def, _)| def) diff --git a/src/tools/rust-analyzer/crates/ide/src/hover/render.rs b/src/tools/rust-analyzer/crates/ide/src/hover/render.rs index f72ce37d1d9..d0a02fd0dba 100644 --- a/src/tools/rust-analyzer/crates/ide/src/hover/render.rs +++ b/src/tools/rust-analyzer/crates/ide/src/hover/render.rs @@ -402,10 +402,9 @@ pub(super) fn definition( |&it| it.layout(db), |_| { let var_def = it.parent_def(db); - let id = it.index(); match var_def { hir::VariantDef::Struct(s) => { - Adt::from(s).layout(db).ok().and_then(|layout| layout.field_offset(id)) + Adt::from(s).layout(db).ok().and_then(|layout| layout.field_offset(it)) } _ => None, } diff --git a/src/tools/rust-analyzer/crates/ide/src/hover/tests.rs b/src/tools/rust-analyzer/crates/ide/src/hover/tests.rs index 81d6db564ff..e54bc48d555 100644 --- a/src/tools/rust-analyzer/crates/ide/src/hover/tests.rs +++ b/src/tools/rust-analyzer/crates/ide/src/hover/tests.rs @@ -5266,38 +5266,46 @@ pub fn foo() {} #[test] fn hover_feature() { check( - r#"#![feature(box_syntax$0)]"#, - expect![[r##" - *box_syntax* - ``` - box_syntax - ``` - ___ + r#"#![feature(intrinsics$0)]"#, + expect![[r#" + *intrinsics* + ``` + intrinsics + ``` + ___ - # `box_syntax` + # `intrinsics` - The tracking issue for this feature is: [#49733] + The tracking issue for this feature is: None. - [#49733]: https://github.com/rust-lang/rust/issues/49733 + Intrinsics are never intended to be stable directly, but intrinsics are often + exported in some sort of stable manner. Prefer using the stable interfaces to + the intrinsic directly when you can. - See also [`box_patterns`](box-patterns.md) + ------------------------ - ------------------------ - Currently the only stable way to create a `Box` is via the `Box::new` method. - Also it is not possible in stable Rust to destructure a `Box` in a match - pattern. The unstable `box` keyword can be used to create a `Box`. An example - usage would be: + These are imported as if they were FFI functions, with the special + `rust-intrinsic` ABI. For example, if one was in a freestanding + context, but wished to be able to `transmute` between types, and + perform efficient pointer arithmetic, one would import those functions + via a declaration like - ```rust - #![feature(box_syntax)] + ```rust + #![feature(intrinsics)] + #![allow(internal_features)] + # fn main() {} - fn main() { - let b = box 5; - } - ``` + extern "rust-intrinsic" { + fn transmute<T, U>(x: T) -> U; - "##]], + fn arith_offset<T>(dst: *const T, offset: isize) -> *const T; + } + ``` + + As with any other FFI functions, these are always `unsafe` to call. + + "#]], ) } diff --git a/src/tools/rust-analyzer/crates/ide/src/inlay_hints/chaining.rs b/src/tools/rust-analyzer/crates/ide/src/inlay_hints/chaining.rs index 12e46c0f883..4152e606755 100644 --- a/src/tools/rust-analyzer/crates/ide/src/inlay_hints/chaining.rs +++ b/src/tools/rust-analyzer/crates/ide/src/inlay_hints/chaining.rs @@ -484,7 +484,7 @@ fn main() { file_id: FileId( 1, ), - range: 10739..10747, + range: 10752..10760, }, ), tooltip: "", @@ -497,7 +497,7 @@ fn main() { file_id: FileId( 1, ), - range: 10771..10775, + range: 10784..10788, }, ), tooltip: "", @@ -522,7 +522,7 @@ fn main() { file_id: FileId( 1, ), - range: 10739..10747, + range: 10752..10760, }, ), tooltip: "", @@ -535,7 +535,7 @@ fn main() { file_id: FileId( 1, ), - range: 10771..10775, + range: 10784..10788, }, ), tooltip: "", @@ -560,7 +560,7 @@ fn main() { file_id: FileId( 1, ), - range: 10739..10747, + range: 10752..10760, }, ), tooltip: "", @@ -573,7 +573,7 @@ fn main() { file_id: FileId( 1, ), - range: 10771..10775, + range: 10784..10788, }, ), tooltip: "", diff --git a/src/tools/rust-analyzer/crates/ide/src/lib.rs b/src/tools/rust-analyzer/crates/ide/src/lib.rs index aee03d218ad..2320c95b4a1 100644 --- a/src/tools/rust-analyzer/crates/ide/src/lib.rs +++ b/src/tools/rust-analyzer/crates/ide/src/lib.rs @@ -8,8 +8,9 @@ //! in this crate. // For proving that RootDatabase is RefUnwindSafe. -#![recursion_limit = "128"] #![warn(rust_2018_idioms, unused_lifetimes, semicolon_in_expressions_from_macros)] +#![cfg_attr(feature = "in-rust-tree", feature(rustc_private))] +#![recursion_limit = "128"] #[allow(unused)] macro_rules! eprintln { diff --git a/src/tools/rust-analyzer/crates/ide/src/runnables.rs b/src/tools/rust-analyzer/crates/ide/src/runnables.rs index 2d528c64255..07cdddd15f8 100644 --- a/src/tools/rust-analyzer/crates/ide/src/runnables.rs +++ b/src/tools/rust-analyzer/crates/ide/src/runnables.rs @@ -308,11 +308,7 @@ pub(crate) fn runnable_fn( sema: &Semantics<'_, RootDatabase>, def: hir::Function, ) -> Option<Runnable> { - let name = def.name(sema.db).to_smol_str(); - - let root = def.module(sema.db).krate().root_module(); - - let kind = if name == "main" && def.module(sema.db) == root { + let kind = if def.is_main(sema.db) { RunnableKind::Bin } else { let test_id = || { @@ -320,7 +316,9 @@ pub(crate) fn runnable_fn( let def: hir::ModuleDef = def.into(); def.canonical_path(sema.db) }; - canonical_path.map(TestId::Path).unwrap_or(TestId::Name(name)) + canonical_path + .map(TestId::Path) + .unwrap_or(TestId::Name(def.name(sema.db).to_smol_str())) }; if def.is_test(sema.db) { @@ -587,6 +585,9 @@ mod tests { $0 fn main() {} +#[export_name = "main"] +fn __cortex_m_rt_main_trampoline() {} + #[test] fn test_foo() {} @@ -604,7 +605,7 @@ mod not_a_root { fn main() {} } "#, - &[TestMod, Bin, Test, Test, Test, Bench], + &[TestMod, Bin, Bin, Test, Test, Test, Bench], expect![[r#" [ Runnable { @@ -613,7 +614,7 @@ mod not_a_root { file_id: FileId( 0, ), - full_range: 0..190, + full_range: 0..253, name: "", kind: Module, }, @@ -642,8 +643,22 @@ mod not_a_root { file_id: FileId( 0, ), - full_range: 15..39, - focus_range: 26..34, + full_range: 15..76, + focus_range: 42..71, + name: "__cortex_m_rt_main_trampoline", + kind: Function, + }, + kind: Bin, + cfg: None, + }, + Runnable { + use_name_in_title: false, + nav: NavigationTarget { + file_id: FileId( + 0, + ), + full_range: 78..102, + focus_range: 89..97, name: "test_foo", kind: Function, }, @@ -663,8 +678,8 @@ mod not_a_root { file_id: FileId( 0, ), - full_range: 41..92, - focus_range: 73..87, + full_range: 104..155, + focus_range: 136..150, name: "test_full_path", kind: Function, }, @@ -684,8 +699,8 @@ mod not_a_root { file_id: FileId( 0, ), - full_range: 94..128, - focus_range: 115..123, + full_range: 157..191, + focus_range: 178..186, name: "test_foo", kind: Function, }, @@ -705,8 +720,8 @@ mod not_a_root { file_id: FileId( 0, ), - full_range: 130..152, - focus_range: 142..147, + full_range: 193..215, + focus_range: 205..210, name: "bench", kind: Function, }, @@ -1655,12 +1670,18 @@ macro_rules! gen2 { } } } +macro_rules! gen_main { + () => { + fn main() {} + } +} mod tests { gen!(); } gen2!(); +gen_main!(); "#, - &[TestMod, TestMod, Test, Test, TestMod], + &[TestMod, TestMod, Test, Test, TestMod, Bin], expect![[r#" [ Runnable { @@ -1669,7 +1690,7 @@ gen2!(); file_id: FileId( 0, ), - full_range: 0..237, + full_range: 0..315, name: "", kind: Module, }, @@ -1684,8 +1705,8 @@ gen2!(); file_id: FileId( 0, ), - full_range: 202..227, - focus_range: 206..211, + full_range: 267..292, + focus_range: 271..276, name: "tests", kind: Module, description: "mod tests", @@ -1701,7 +1722,7 @@ gen2!(); file_id: FileId( 0, ), - full_range: 218..225, + full_range: 283..290, name: "foo_test", kind: Function, }, @@ -1721,7 +1742,7 @@ gen2!(); file_id: FileId( 0, ), - full_range: 228..236, + full_range: 293..301, name: "foo_test2", kind: Function, }, @@ -1741,7 +1762,7 @@ gen2!(); file_id: FileId( 0, ), - full_range: 228..236, + full_range: 293..301, name: "tests2", kind: Module, description: "mod tests2", @@ -1751,6 +1772,19 @@ gen2!(); }, cfg: None, }, + Runnable { + use_name_in_title: false, + nav: NavigationTarget { + file_id: FileId( + 0, + ), + full_range: 302..314, + name: "main", + kind: Function, + }, + kind: Bin, + cfg: None, + }, ] "#]], ); diff --git a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting.rs b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting.rs index bb01c81d66f..dd72484b380 100644 --- a/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting.rs +++ b/src/tools/rust-analyzer/crates/ide/src/syntax_highlighting.rs @@ -245,7 +245,7 @@ fn traverse( let mut macro_highlighter = MacroHighlighter::default(); // FIXME: these are not perfectly accurate, we determine them by the real file's syntax tree - // an an attribute nested in a macro call will not emit `inside_attribute` + // an attribute nested in a macro call will not emit `inside_attribute` let mut inside_attribute = false; let mut inside_macro_call = false; diff --git a/src/tools/rust-analyzer/crates/ide/src/typing.rs b/src/tools/rust-analyzer/crates/ide/src/typing.rs index b40509715ba..d21850bcff3 100644 --- a/src/tools/rust-analyzer/crates/ide/src/typing.rs +++ b/src/tools/rust-analyzer/crates/ide/src/typing.rs @@ -47,7 +47,7 @@ struct ExtendedTextEdit { // - typing `=` between two expressions adds `;` when in statement position // - typing `=` to turn an assignment into an equality comparison removes `;` when in expression position // - typing `.` in a chain method call auto-indents -// - typing `{` in front of an expression inserts a closing `}` after the expression +// - typing `{` or `(` in front of an expression inserts a closing `}` or `)` after the expression // - typing `{` in a use item adds a closing `}` in the right place // // VS Code:: diff --git a/src/tools/rust-analyzer/crates/ide/src/view_memory_layout.rs b/src/tools/rust-analyzer/crates/ide/src/view_memory_layout.rs index 2f6332abd25..3802978f494 100644 --- a/src/tools/rust-analyzer/crates/ide/src/view_memory_layout.rs +++ b/src/tools/rust-analyzer/crates/ide/src/view_memory_layout.rs @@ -55,6 +55,7 @@ impl fmt::Display for RecursiveMemoryLayout { } } +#[derive(Copy, Clone)] enum FieldOrTupleIdx { Field(Field), TupleIdx(usize), @@ -71,13 +72,6 @@ impl FieldOrTupleIdx { FieldOrTupleIdx::TupleIdx(i) => format!(".{i}").to_owned(), } } - - fn index(&self) -> usize { - match *self { - FieldOrTupleIdx::Field(f) => f.index(), - FieldOrTupleIdx::TupleIdx(i) => i, - } - } } // Feature: View Memory Layout @@ -138,7 +132,10 @@ pub(crate) fn view_memory_layout( return; } - fields.sort_by_key(|(f, _)| layout.field_offset(f.index()).unwrap()); + fields.sort_by_key(|&(f, _)| match f { + FieldOrTupleIdx::Field(f) => layout.field_offset(f).unwrap_or(0), + FieldOrTupleIdx::TupleIdx(f) => layout.tuple_field_offset(f).unwrap_or(0), + }); let children_start = nodes.len(); nodes[parent_idx].children_start = children_start as i64; @@ -151,7 +148,10 @@ pub(crate) fn view_memory_layout( typename: child_ty.display(db).to_string(), size: child_layout.size(), alignment: child_layout.align(), - offset: layout.field_offset(field.index()).unwrap_or(0), + offset: match *field { + FieldOrTupleIdx::Field(f) => layout.field_offset(f).unwrap_or(0), + FieldOrTupleIdx::TupleIdx(f) => layout.tuple_field_offset(f).unwrap_or(0), + }, parent_idx: parent_idx as i64, children_start: -1, children_len: 0, diff --git a/src/tools/rust-analyzer/crates/intern/src/lib.rs b/src/tools/rust-analyzer/crates/intern/src/lib.rs index 2934d26674d..d784321c7c7 100644 --- a/src/tools/rust-analyzer/crates/intern/src/lib.rs +++ b/src/tools/rust-analyzer/crates/intern/src/lib.rs @@ -33,13 +33,10 @@ impl<T: Internable> Interned<T> { // - if not, box it up, insert it, and return a clone // This needs to be atomic (locking the shard) to avoid races with other thread, which could // insert the same object between us looking it up and inserting it. - match shard.raw_entry_mut().from_key_hashed_nocheck(hash as u64, &obj) { + match shard.raw_entry_mut().from_key_hashed_nocheck(hash, &obj) { RawEntryMut::Occupied(occ) => Self { arc: occ.key().clone() }, RawEntryMut::Vacant(vac) => Self { - arc: vac - .insert_hashed_nocheck(hash as u64, Arc::new(obj), SharedValue::new(())) - .0 - .clone(), + arc: vac.insert_hashed_nocheck(hash, Arc::new(obj), SharedValue::new(())).0.clone(), }, } } @@ -54,13 +51,10 @@ impl Interned<str> { // - if not, box it up, insert it, and return a clone // This needs to be atomic (locking the shard) to avoid races with other thread, which could // insert the same object between us looking it up and inserting it. - match shard.raw_entry_mut().from_key_hashed_nocheck(hash as u64, s) { + match shard.raw_entry_mut().from_key_hashed_nocheck(hash, s) { RawEntryMut::Occupied(occ) => Self { arc: occ.key().clone() }, RawEntryMut::Vacant(vac) => Self { - arc: vac - .insert_hashed_nocheck(hash as u64, Arc::from(s), SharedValue::new(())) - .0 - .clone(), + arc: vac.insert_hashed_nocheck(hash, Arc::from(s), SharedValue::new(())).0.clone(), }, } } diff --git a/src/tools/rust-analyzer/crates/mbe/src/expander.rs b/src/tools/rust-analyzer/crates/mbe/src/expander.rs index f2d89d3efe5..908048c9904 100644 --- a/src/tools/rust-analyzer/crates/mbe/src/expander.rs +++ b/src/tools/rust-analyzer/crates/mbe/src/expander.rs @@ -119,7 +119,7 @@ enum Fragment { /// precedence. Note that this impl is different from the one currently in /// `rustc` -- `rustc` doesn't translate fragments into token trees at all. /// - /// At one point in time, we tried to to use "fake" delimiters here a-la + /// At one point in time, we tried to use "fake" delimiters here à la /// proc-macro delimiter=none. As we later discovered, "none" delimiters are /// tricky to handle in the parser, and rustc doesn't handle those either. Expr(tt::TokenTree), diff --git a/src/tools/rust-analyzer/crates/mbe/src/lib.rs b/src/tools/rust-analyzer/crates/mbe/src/lib.rs index 9d886a1c979..a439c9c50d6 100644 --- a/src/tools/rust-analyzer/crates/mbe/src/lib.rs +++ b/src/tools/rust-analyzer/crates/mbe/src/lib.rs @@ -3,7 +3,7 @@ //! interface, although it contains some code to bridge `SyntaxNode`s and //! `TokenTree`s as well! //! -//! The tes for this functionality live in another crate: +//! The tests for this functionality live in another crate: //! `hir_def::macro_expansion_tests::mbe`. #![warn(rust_2018_idioms, unused_lifetimes, semicolon_in_expressions_from_macros)] diff --git a/src/tools/rust-analyzer/crates/parser/Cargo.toml b/src/tools/rust-analyzer/crates/parser/Cargo.toml index 09e62c35278..efb326323f9 100644 --- a/src/tools/rust-analyzer/crates/parser/Cargo.toml +++ b/src/tools/rust-analyzer/crates/parser/Cargo.toml @@ -13,7 +13,7 @@ doctest = false [dependencies] drop_bomb = "0.1.5" -rustc_lexer.workspace = true +rustc-dependencies.workspace = true limit.workspace = true @@ -22,3 +22,6 @@ expect-test = "1.4.0" stdx.workspace = true sourcegen.workspace = true + +[features] +in-rust-tree = ["rustc-dependencies/in-rust-tree"] diff --git a/src/tools/rust-analyzer/crates/parser/src/grammar/params.rs b/src/tools/rust-analyzer/crates/parser/src/grammar/params.rs index 74eae9151a2..846da28cb01 100644 --- a/src/tools/rust-analyzer/crates/parser/src/grammar/params.rs +++ b/src/tools/rust-analyzer/crates/parser/src/grammar/params.rs @@ -7,6 +7,9 @@ use super::*; // fn b(x: i32) {} // fn c(x: i32, ) {} // fn d(x: i32, y: ()) {} + +// test_err empty_param_slot +// fn f(y: i32, ,t: i32) {} pub(super) fn param_list_fn_def(p: &mut Parser<'_>) { list_(p, Flavor::FnDef); } @@ -71,7 +74,11 @@ fn list_(p: &mut Parser<'_>, flavor: Flavor) { if !p.at_ts(PARAM_FIRST.union(ATTRIBUTE_FIRST)) { p.error("expected value parameter"); m.abandon(p); - break; + if p.eat(T![,]) { + continue; + } else { + break; + } } param(p, m, flavor); if !p.at(T![,]) { diff --git a/src/tools/rust-analyzer/crates/parser/src/lexed_str.rs b/src/tools/rust-analyzer/crates/parser/src/lexed_str.rs index 36c52953a02..b9e7566fdf9 100644 --- a/src/tools/rust-analyzer/crates/parser/src/lexed_str.rs +++ b/src/tools/rust-analyzer/crates/parser/src/lexed_str.rs @@ -8,8 +8,12 @@ //! Note that these tokens, unlike the tokens we feed into the parser, do //! include info about comments and whitespace. +use rustc_dependencies::lexer as rustc_lexer; + use std::ops; +use rustc_lexer::unescape::{EscapeError, Mode}; + use crate::{ SyntaxKind::{self, *}, T, @@ -253,30 +257,60 @@ impl<'a> Converter<'a> { rustc_lexer::LiteralKind::Char { terminated } => { if !terminated { err = "Missing trailing `'` symbol to terminate the character literal"; + } else { + let text = &self.res.text[self.offset + 1..][..len - 1]; + let i = text.rfind('\'').unwrap(); + let text = &text[..i]; + if let Err(e) = rustc_lexer::unescape::unescape_char(text) { + err = error_to_diagnostic_message(e, Mode::Char); + } } CHAR } rustc_lexer::LiteralKind::Byte { terminated } => { if !terminated { err = "Missing trailing `'` symbol to terminate the byte literal"; + } else { + let text = &self.res.text[self.offset + 2..][..len - 2]; + let i = text.rfind('\'').unwrap(); + let text = &text[..i]; + if let Err(e) = rustc_lexer::unescape::unescape_byte(text) { + err = error_to_diagnostic_message(e, Mode::Byte); + } } + BYTE } rustc_lexer::LiteralKind::Str { terminated } => { if !terminated { err = "Missing trailing `\"` symbol to terminate the string literal"; + } else { + let text = &self.res.text[self.offset + 1..][..len - 1]; + let i = text.rfind('"').unwrap(); + let text = &text[..i]; + err = unescape_string_error_message(text, Mode::Str); } STRING } rustc_lexer::LiteralKind::ByteStr { terminated } => { if !terminated { err = "Missing trailing `\"` symbol to terminate the byte string literal"; + } else { + let text = &self.res.text[self.offset + 2..][..len - 2]; + let i = text.rfind('"').unwrap(); + let text = &text[..i]; + err = unescape_string_error_message(text, Mode::ByteStr); } BYTE_STRING } rustc_lexer::LiteralKind::CStr { terminated } => { if !terminated { err = "Missing trailing `\"` symbol to terminate the string literal"; + } else { + let text = &self.res.text[self.offset + 2..][..len - 2]; + let i = text.rfind('"').unwrap(); + let text = &text[..i]; + err = unescape_string_error_message(text, Mode::CStr); } C_STRING } @@ -304,3 +338,64 @@ impl<'a> Converter<'a> { self.push(syntax_kind, len, err); } } + +fn error_to_diagnostic_message(error: EscapeError, mode: Mode) -> &'static str { + match error { + EscapeError::ZeroChars => "empty character literal", + EscapeError::MoreThanOneChar => "character literal may only contain one codepoint", + EscapeError::LoneSlash => "", + EscapeError::InvalidEscape if mode == Mode::Byte || mode == Mode::ByteStr => { + "unknown byte escape" + } + EscapeError::InvalidEscape => "unknown character escape", + EscapeError::BareCarriageReturn => "", + EscapeError::BareCarriageReturnInRawString => "", + EscapeError::EscapeOnlyChar if mode == Mode::Byte => "byte constant must be escaped", + EscapeError::EscapeOnlyChar => "character constant must be escaped", + EscapeError::TooShortHexEscape => "numeric character escape is too short", + EscapeError::InvalidCharInHexEscape => "invalid character in numeric character escape", + EscapeError::OutOfRangeHexEscape => "out of range hex escape", + EscapeError::NoBraceInUnicodeEscape => "incorrect unicode escape sequence", + EscapeError::InvalidCharInUnicodeEscape => "invalid character in unicode escape", + EscapeError::EmptyUnicodeEscape => "empty unicode escape", + EscapeError::UnclosedUnicodeEscape => "unterminated unicode escape", + EscapeError::LeadingUnderscoreUnicodeEscape => "invalid start of unicode escape", + EscapeError::OverlongUnicodeEscape => "overlong unicode escape", + EscapeError::LoneSurrogateUnicodeEscape => "invalid unicode character escape", + EscapeError::OutOfRangeUnicodeEscape => "invalid unicode character escape", + EscapeError::UnicodeEscapeInByte => "unicode escape in byte string", + EscapeError::NonAsciiCharInByte if mode == Mode::Byte => { + "non-ASCII character in byte literal" + } + EscapeError::NonAsciiCharInByte if mode == Mode::ByteStr => { + "non-ASCII character in byte string literal" + } + EscapeError::NonAsciiCharInByte => "non-ASCII character in raw byte string literal", + EscapeError::UnskippedWhitespaceWarning => "", + EscapeError::MultipleSkippedLinesWarning => "", + } +} + +fn unescape_string_error_message(text: &str, mode: Mode) -> &'static str { + let mut error_message = ""; + match mode { + Mode::CStr => { + rustc_lexer::unescape::unescape_c_string(text, mode, &mut |_, res| { + if let Err(e) = res { + error_message = error_to_diagnostic_message(e, mode); + } + }); + } + Mode::ByteStr | Mode::Str => { + rustc_lexer::unescape::unescape_literal(text, mode, &mut |_, res| { + if let Err(e) = res { + error_message = error_to_diagnostic_message(e, mode); + } + }); + } + _ => { + // Other Modes are not supported yet or do not apply + } + } + error_message +} diff --git a/src/tools/rust-analyzer/crates/parser/src/lib.rs b/src/tools/rust-analyzer/crates/parser/src/lib.rs index c155e8aaf67..fcfd1a50719 100644 --- a/src/tools/rust-analyzer/crates/parser/src/lib.rs +++ b/src/tools/rust-analyzer/crates/parser/src/lib.rs @@ -19,6 +19,7 @@ #![warn(rust_2018_idioms, unused_lifetimes, semicolon_in_expressions_from_macros)] #![allow(rustdoc::private_intra_doc_links)] +#![cfg_attr(feature = "in-rust-tree", feature(rustc_private))] mod lexed_str; mod token_set; diff --git a/src/tools/rust-analyzer/crates/parser/src/shortcuts.rs b/src/tools/rust-analyzer/crates/parser/src/shortcuts.rs index 2c47e3d086d..57005a6834c 100644 --- a/src/tools/rust-analyzer/crates/parser/src/shortcuts.rs +++ b/src/tools/rust-analyzer/crates/parser/src/shortcuts.rs @@ -32,29 +32,27 @@ impl LexedStr<'_> { let kind = self.kind(i); if kind.is_trivia() { was_joint = false + } else if kind == SyntaxKind::IDENT { + let token_text = self.text(i); + let contextual_kw = + SyntaxKind::from_contextual_keyword(token_text).unwrap_or(SyntaxKind::IDENT); + res.push_ident(contextual_kw); } else { - if kind == SyntaxKind::IDENT { - let token_text = self.text(i); - let contextual_kw = SyntaxKind::from_contextual_keyword(token_text) - .unwrap_or(SyntaxKind::IDENT); - res.push_ident(contextual_kw); - } else { - if was_joint { + if was_joint { + res.was_joint(); + } + res.push(kind); + // Tag the token as joint if it is float with a fractional part + // we use this jointness to inform the parser about what token split + // event to emit when we encounter a float literal in a field access + if kind == SyntaxKind::FLOAT_NUMBER { + if !self.text(i).ends_with('.') { res.was_joint(); - } - res.push(kind); - // Tag the token as joint if it is float with a fractional part - // we use this jointness to inform the parser about what token split - // event to emit when we encounter a float literal in a field access - if kind == SyntaxKind::FLOAT_NUMBER { - if !self.text(i).ends_with('.') { - res.was_joint(); - } else { - was_joint = false; - } } else { - was_joint = true; + was_joint = false; } + } else { + was_joint = true; } } } diff --git a/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/byte_char_literals.rast b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/byte_char_literals.rast new file mode 100644 index 00000000000..7603c9099da --- /dev/null +++ b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/byte_char_literals.rast @@ -0,0 +1,86 @@ +BYTE "b''" error: empty character literal +WHITESPACE "\n" +BYTE "b'\\'" error: Missing trailing `'` symbol to terminate the byte literal +WHITESPACE "\n" +BYTE "b'\n'" error: byte constant must be escaped +WHITESPACE "\n" +BYTE "b'spam'" error: character literal may only contain one codepoint +WHITESPACE "\n" +BYTE "b'\\x0ff'" error: character literal may only contain one codepoint +WHITESPACE "\n" +BYTE "b'\\\"a'" error: character literal may only contain one codepoint +WHITESPACE "\n" +BYTE "b'\\na'" error: character literal may only contain one codepoint +WHITESPACE "\n" +BYTE "b'\\ra'" error: character literal may only contain one codepoint +WHITESPACE "\n" +BYTE "b'\\ta'" error: character literal may only contain one codepoint +WHITESPACE "\n" +BYTE "b'\\\\a'" error: character literal may only contain one codepoint +WHITESPACE "\n" +BYTE "b'\\'a'" error: character literal may only contain one codepoint +WHITESPACE "\n" +BYTE "b'\\0a'" error: character literal may only contain one codepoint +WHITESPACE "\n" +BYTE "b'\\u{0}x'" error: unicode escape in byte string +WHITESPACE "\n" +BYTE "b'\\u{1F63b}}'" error: unicode escape in byte string +WHITESPACE "\n" +BYTE "b'\\v'" error: unknown byte escape +WHITESPACE "\n" +BYTE "b'\\💩'" error: unknown byte escape +WHITESPACE "\n" +BYTE "b'\\●'" error: unknown byte escape +WHITESPACE "\n" +BYTE "b'\\\\\\r'" error: character literal may only contain one codepoint +WHITESPACE "\n" +BYTE "b'\\x'" error: numeric character escape is too short +WHITESPACE "\n" +BYTE "b'\\x0'" error: numeric character escape is too short +WHITESPACE "\n" +BYTE "b'\\xf'" error: numeric character escape is too short +WHITESPACE "\n" +BYTE "b'\\xa'" error: numeric character escape is too short +WHITESPACE "\n" +BYTE "b'\\xx'" error: invalid character in numeric character escape +WHITESPACE "\n" +BYTE "b'\\xы'" error: invalid character in numeric character escape +WHITESPACE "\n" +BYTE "b'\\x🦀'" error: invalid character in numeric character escape +WHITESPACE "\n" +BYTE "b'\\xtt'" error: invalid character in numeric character escape +WHITESPACE "\n" +BYTE "b'\\u'" error: incorrect unicode escape sequence +WHITESPACE "\n" +BYTE "b'\\u[0123]'" error: incorrect unicode escape sequence +WHITESPACE "\n" +BYTE "b'\\u{0x}'" error: invalid character in unicode escape +WHITESPACE "\n" +BYTE "b'\\u{'" error: unterminated unicode escape +WHITESPACE "\n" +BYTE "b'\\u{0000'" error: unterminated unicode escape +WHITESPACE "\n" +BYTE "b'\\u{}'" error: empty unicode escape +WHITESPACE "\n" +BYTE "b'\\u{_0000}'" error: invalid start of unicode escape +WHITESPACE "\n" +BYTE "b'\\u{0000000}'" error: overlong unicode escape +WHITESPACE "\n" +BYTE "b'\\u{FFFFFF}'" error: unicode escape in byte string +WHITESPACE "\n" +BYTE "b'\\u{ffffff}'" error: unicode escape in byte string +WHITESPACE "\n" +BYTE "b'\\u{ffffff}'" error: unicode escape in byte string +WHITESPACE "\n" +BYTE "b'\\u{DC00}'" error: unicode escape in byte string +WHITESPACE "\n" +BYTE "b'\\u{DDDD}'" error: unicode escape in byte string +WHITESPACE "\n" +BYTE "b'\\u{DFFF}'" error: unicode escape in byte string +WHITESPACE "\n" +BYTE "b'\\u{D800}'" error: unicode escape in byte string +WHITESPACE "\n" +BYTE "b'\\u{DAAA}'" error: unicode escape in byte string +WHITESPACE "\n" +BYTE "b'\\u{DBFF}'" error: unicode escape in byte string +WHITESPACE "\n" diff --git a/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/byte_char_literals.rs b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/byte_char_literals.rs new file mode 100644 index 00000000000..b2d06e490bd --- /dev/null +++ b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/byte_char_literals.rs @@ -0,0 +1,44 @@ +b'' +b'\' +b' +' +b'spam' +b'\x0ff' +b'\"a' +b'\na' +b'\ra' +b'\ta' +b'\\a' +b'\'a' +b'\0a' +b'\u{0}x' +b'\u{1F63b}}' +b'\v' +b'\💩' +b'\●' +b'\\\r' +b'\x' +b'\x0' +b'\xf' +b'\xa' +b'\xx' +b'\xы' +b'\x🦀' +b'\xtt' +b'\u' +b'\u[0123]' +b'\u{0x}' +b'\u{' +b'\u{0000' +b'\u{}' +b'\u{_0000}' +b'\u{0000000}' +b'\u{FFFFFF}' +b'\u{ffffff}' +b'\u{ffffff}' +b'\u{DC00}' +b'\u{DDDD}' +b'\u{DFFF}' +b'\u{D800}' +b'\u{DAAA}' +b'\u{DBFF}' diff --git a/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/byte_strings.rast b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/byte_strings.rast new file mode 100644 index 00000000000..e8d8ff8cefb --- /dev/null +++ b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/byte_strings.rast @@ -0,0 +1,28 @@ +BYTE_STRING "b\"\\💩\"" error: unknown byte escape +WHITESPACE "\n" +BYTE_STRING "b\"\\●\"" error: unknown byte escape +WHITESPACE "\n" +BYTE_STRING "b\"\\u{_0000}\"" error: invalid start of unicode escape +WHITESPACE "\n" +BYTE_STRING "b\"\\u{0000000}\"" error: overlong unicode escape +WHITESPACE "\n" +BYTE_STRING "b\"\\u{FFFFFF}\"" error: unicode escape in byte string +WHITESPACE "\n" +BYTE_STRING "b\"\\u{ffffff}\"" error: unicode escape in byte string +WHITESPACE "\n" +BYTE_STRING "b\"\\u{ffffff}\"" error: unicode escape in byte string +WHITESPACE "\n" +BYTE_STRING "b\"\\u{DC00}\"" error: unicode escape in byte string +WHITESPACE "\n" +BYTE_STRING "b\"\\u{DDDD}\"" error: unicode escape in byte string +WHITESPACE "\n" +BYTE_STRING "b\"\\u{DFFF}\"" error: unicode escape in byte string +WHITESPACE "\n" +BYTE_STRING "b\"\\u{D800}\"" error: unicode escape in byte string +WHITESPACE "\n" +BYTE_STRING "b\"\\u{DAAA}\"" error: unicode escape in byte string +WHITESPACE "\n" +BYTE_STRING "b\"\\u{DBFF}\"" error: unicode escape in byte string +WHITESPACE "\n" +BYTE_STRING "b\"\\xы\"" error: invalid character in numeric character escape +WHITESPACE "\n" diff --git a/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/byte_strings.rs b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/byte_strings.rs new file mode 100644 index 00000000000..e74847137b1 --- /dev/null +++ b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/byte_strings.rs @@ -0,0 +1,14 @@ +b"\💩" +b"\●" +b"\u{_0000}" +b"\u{0000000}" +b"\u{FFFFFF}" +b"\u{ffffff}" +b"\u{ffffff}" +b"\u{DC00}" +b"\u{DDDD}" +b"\u{DFFF}" +b"\u{D800}" +b"\u{DAAA}" +b"\u{DBFF}" +b"\xы" diff --git a/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/c_strings.rast b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/c_strings.rast new file mode 100644 index 00000000000..1b4424ba5c7 --- /dev/null +++ b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/c_strings.rast @@ -0,0 +1,28 @@ +C_STRING "c\"\\💩\"" error: unknown character escape +WHITESPACE "\n" +C_STRING "c\"\\●\"" error: unknown character escape +WHITESPACE "\n" +C_STRING "c\"\\u{_0000}\"" error: invalid start of unicode escape +WHITESPACE "\n" +C_STRING "c\"\\u{0000000}\"" error: overlong unicode escape +WHITESPACE "\n" +C_STRING "c\"\\u{FFFFFF}\"" error: invalid unicode character escape +WHITESPACE "\n" +C_STRING "c\"\\u{ffffff}\"" error: invalid unicode character escape +WHITESPACE "\n" +C_STRING "c\"\\u{ffffff}\"" error: invalid unicode character escape +WHITESPACE "\n" +C_STRING "c\"\\u{DC00}\"" error: invalid unicode character escape +WHITESPACE "\n" +C_STRING "c\"\\u{DDDD}\"" error: invalid unicode character escape +WHITESPACE "\n" +C_STRING "c\"\\u{DFFF}\"" error: invalid unicode character escape +WHITESPACE "\n" +C_STRING "c\"\\u{D800}\"" error: invalid unicode character escape +WHITESPACE "\n" +C_STRING "c\"\\u{DAAA}\"" error: invalid unicode character escape +WHITESPACE "\n" +C_STRING "c\"\\u{DBFF}\"" error: invalid unicode character escape +WHITESPACE "\n" +C_STRING "c\"\\xы\"" error: invalid character in numeric character escape +WHITESPACE "\n" diff --git a/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/c_strings.rs b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/c_strings.rs new file mode 100644 index 00000000000..1b78ffc28a0 --- /dev/null +++ b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/c_strings.rs @@ -0,0 +1,14 @@ +c"\💩" +c"\●" +c"\u{_0000}" +c"\u{0000000}" +c"\u{FFFFFF}" +c"\u{ffffff}" +c"\u{ffffff}" +c"\u{DC00}" +c"\u{DDDD}" +c"\u{DFFF}" +c"\u{D800}" +c"\u{DAAA}" +c"\u{DBFF}" +c"\xы" diff --git a/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/char_literals.rast b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/char_literals.rast new file mode 100644 index 00000000000..b1e1364d4c2 --- /dev/null +++ b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/char_literals.rast @@ -0,0 +1,92 @@ +CHAR "'hello'" error: character literal may only contain one codepoint +WHITESPACE "\n" +CHAR "''" error: empty character literal +WHITESPACE "\n" +CHAR "'\n'" error: character constant must be escaped +WHITESPACE "\n" +CHAR "'spam'" error: character literal may only contain one codepoint +WHITESPACE "\n" +CHAR "'\\x0ff'" error: character literal may only contain one codepoint +WHITESPACE "\n" +CHAR "'\\\"a'" error: character literal may only contain one codepoint +WHITESPACE "\n" +CHAR "'\\na'" error: character literal may only contain one codepoint +WHITESPACE "\n" +CHAR "'\\ra'" error: character literal may only contain one codepoint +WHITESPACE "\n" +CHAR "'\\ta'" error: character literal may only contain one codepoint +WHITESPACE "\n" +CHAR "'\\\\a'" error: character literal may only contain one codepoint +WHITESPACE "\n" +CHAR "'\\'a'" error: character literal may only contain one codepoint +WHITESPACE "\n" +CHAR "'\\0a'" error: character literal may only contain one codepoint +WHITESPACE "\n" +CHAR "'\\u{0}x'" error: character literal may only contain one codepoint +WHITESPACE "\n" +CHAR "'\\u{1F63b}}'" error: character literal may only contain one codepoint +WHITESPACE "\n" +CHAR "'\\v'" error: unknown character escape +WHITESPACE "\n" +CHAR "'\\💩'" error: unknown character escape +WHITESPACE "\n" +CHAR "'\\●'" error: unknown character escape +WHITESPACE "\n" +CHAR "'\\\\\\r'" error: character literal may only contain one codepoint +WHITESPACE "\n" +CHAR "'\\x'" error: numeric character escape is too short +WHITESPACE "\n" +CHAR "'\\x0'" error: numeric character escape is too short +WHITESPACE "\n" +CHAR "'\\xf'" error: numeric character escape is too short +WHITESPACE "\n" +CHAR "'\\xa'" error: numeric character escape is too short +WHITESPACE "\n" +CHAR "'\\xx'" error: invalid character in numeric character escape +WHITESPACE "\n" +CHAR "'\\xы'" error: invalid character in numeric character escape +WHITESPACE "\n" +CHAR "'\\x🦀'" error: invalid character in numeric character escape +WHITESPACE "\n" +CHAR "'\\xtt'" error: invalid character in numeric character escape +WHITESPACE "\n" +CHAR "'\\xff'" error: out of range hex escape +WHITESPACE "\n" +CHAR "'\\xFF'" error: out of range hex escape +WHITESPACE "\n" +CHAR "'\\x80'" error: out of range hex escape +WHITESPACE "\n" +CHAR "'\\u'" error: incorrect unicode escape sequence +WHITESPACE "\n" +CHAR "'\\u[0123]'" error: incorrect unicode escape sequence +WHITESPACE "\n" +CHAR "'\\u{0x}'" error: invalid character in unicode escape +WHITESPACE "\n" +CHAR "'\\u{'" error: unterminated unicode escape +WHITESPACE "\n" +CHAR "'\\u{0000'" error: unterminated unicode escape +WHITESPACE "\n" +CHAR "'\\u{}'" error: empty unicode escape +WHITESPACE "\n" +CHAR "'\\u{_0000}'" error: invalid start of unicode escape +WHITESPACE "\n" +CHAR "'\\u{0000000}'" error: overlong unicode escape +WHITESPACE "\n" +CHAR "'\\u{FFFFFF}'" error: invalid unicode character escape +WHITESPACE "\n" +CHAR "'\\u{ffffff}'" error: invalid unicode character escape +WHITESPACE "\n" +CHAR "'\\u{ffffff}'" error: invalid unicode character escape +WHITESPACE "\n" +CHAR "'\\u{DC00}'" error: invalid unicode character escape +WHITESPACE "\n" +CHAR "'\\u{DDDD}'" error: invalid unicode character escape +WHITESPACE "\n" +CHAR "'\\u{DFFF}'" error: invalid unicode character escape +WHITESPACE "\n" +CHAR "'\\u{D800}'" error: invalid unicode character escape +WHITESPACE "\n" +CHAR "'\\u{DAAA}'" error: invalid unicode character escape +WHITESPACE "\n" +CHAR "'\\u{DBFF}'" error: invalid unicode character escape +WHITESPACE "\n" diff --git a/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/char_literals.rs b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/char_literals.rs new file mode 100644 index 00000000000..291f99d8020 --- /dev/null +++ b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/char_literals.rs @@ -0,0 +1,47 @@ +'hello' +'' +' +' +'spam' +'\x0ff' +'\"a' +'\na' +'\ra' +'\ta' +'\\a' +'\'a' +'\0a' +'\u{0}x' +'\u{1F63b}}' +'\v' +'\💩' +'\●' +'\\\r' +'\x' +'\x0' +'\xf' +'\xa' +'\xx' +'\xы' +'\x🦀' +'\xtt' +'\xff' +'\xFF' +'\x80' +'\u' +'\u[0123]' +'\u{0x}' +'\u{' +'\u{0000' +'\u{}' +'\u{_0000}' +'\u{0000000}' +'\u{FFFFFF}' +'\u{ffffff}' +'\u{ffffff}' +'\u{DC00}' +'\u{DDDD}' +'\u{DFFF}' +'\u{D800}' +'\u{DAAA}' +'\u{DBFF}' diff --git a/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/strings.rast b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/strings.rast new file mode 100644 index 00000000000..0cd1747208e --- /dev/null +++ b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/strings.rast @@ -0,0 +1,28 @@ +STRING "\"\\💩\"" error: unknown character escape +WHITESPACE "\n" +STRING "\"\\●\"" error: unknown character escape +WHITESPACE "\n" +STRING "\"\\u{_0000}\"" error: invalid start of unicode escape +WHITESPACE "\n" +STRING "\"\\u{0000000}\"" error: overlong unicode escape +WHITESPACE "\n" +STRING "\"\\u{FFFFFF}\"" error: invalid unicode character escape +WHITESPACE "\n" +STRING "\"\\u{ffffff}\"" error: invalid unicode character escape +WHITESPACE "\n" +STRING "\"\\u{ffffff}\"" error: invalid unicode character escape +WHITESPACE "\n" +STRING "\"\\u{DC00}\"" error: invalid unicode character escape +WHITESPACE "\n" +STRING "\"\\u{DDDD}\"" error: invalid unicode character escape +WHITESPACE "\n" +STRING "\"\\u{DFFF}\"" error: invalid unicode character escape +WHITESPACE "\n" +STRING "\"\\u{D800}\"" error: invalid unicode character escape +WHITESPACE "\n" +STRING "\"\\u{DAAA}\"" error: invalid unicode character escape +WHITESPACE "\n" +STRING "\"\\u{DBFF}\"" error: invalid unicode character escape +WHITESPACE "\n" +STRING "\"\\xы\"" error: invalid character in numeric character escape +WHITESPACE "\n" diff --git a/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/strings.rs b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/strings.rs new file mode 100644 index 00000000000..2499516d3fa --- /dev/null +++ b/src/tools/rust-analyzer/crates/parser/test_data/lexer/err/strings.rs @@ -0,0 +1,14 @@ +"\💩" +"\●" +"\u{_0000}" +"\u{0000000}" +"\u{FFFFFF}" +"\u{ffffff}" +"\u{ffffff}" +"\u{DC00}" +"\u{DDDD}" +"\u{DFFF}" +"\u{D800}" +"\u{DAAA}" +"\u{DBFF}" +"\xы" diff --git a/src/tools/rust-analyzer/crates/parser/test_data/lexer/ok/byte_strings.rast b/src/tools/rust-analyzer/crates/parser/test_data/lexer/ok/byte_strings.rast index c848ac368e4..fd20ca57ac6 100644 --- a/src/tools/rust-analyzer/crates/parser/test_data/lexer/ok/byte_strings.rast +++ b/src/tools/rust-analyzer/crates/parser/test_data/lexer/ok/byte_strings.rast @@ -1,13 +1,9 @@ -BYTE "b''" -WHITESPACE " " BYTE "b'x'" WHITESPACE " " BYTE_STRING "b\"foo\"" WHITESPACE " " BYTE_STRING "br\"\"" WHITESPACE "\n" -BYTE "b''suf" -WHITESPACE " " BYTE_STRING "b\"\"ix" WHITESPACE " " BYTE_STRING "br\"\"br" @@ -17,6 +13,4 @@ WHITESPACE " " BYTE "b'\\\\'" WHITESPACE " " BYTE "b'\\''" -WHITESPACE " " -BYTE "b'hello'" WHITESPACE "\n" diff --git a/src/tools/rust-analyzer/crates/parser/test_data/lexer/ok/byte_strings.rs b/src/tools/rust-analyzer/crates/parser/test_data/lexer/ok/byte_strings.rs index b54930f5e69..65460d02cb2 100644 --- a/src/tools/rust-analyzer/crates/parser/test_data/lexer/ok/byte_strings.rs +++ b/src/tools/rust-analyzer/crates/parser/test_data/lexer/ok/byte_strings.rs @@ -1,3 +1,3 @@ -b'' b'x' b"foo" br"" -b''suf b""ix br""br -b'\n' b'\\' b'\'' b'hello' +b'x' b"foo" br"" +b""ix br""br +b'\n' b'\\' b'\'' diff --git a/src/tools/rust-analyzer/crates/parser/test_data/lexer/ok/chars.rast b/src/tools/rust-analyzer/crates/parser/test_data/lexer/ok/chars.rast index 66e58cc298f..07172a4ecc0 100644 --- a/src/tools/rust-analyzer/crates/parser/test_data/lexer/ok/chars.rast +++ b/src/tools/rust-analyzer/crates/parser/test_data/lexer/ok/chars.rast @@ -4,8 +4,6 @@ CHAR "' '" WHITESPACE " " CHAR "'0'" WHITESPACE " " -CHAR "'hello'" -WHITESPACE " " CHAR "'\\x7f'" WHITESPACE " " CHAR "'\\n'" diff --git a/src/tools/rust-analyzer/crates/parser/test_data/lexer/ok/chars.rs b/src/tools/rust-analyzer/crates/parser/test_data/lexer/ok/chars.rs index 454ee0a5f61..15f52c113c1 100644 --- a/src/tools/rust-analyzer/crates/parser/test_data/lexer/ok/chars.rs +++ b/src/tools/rust-analyzer/crates/parser/test_data/lexer/ok/chars.rs @@ -1 +1 @@ -'x' ' ' '0' 'hello' '\x7f' '\n' '\\' '\'' +'x' ' ' '0' '\x7f' '\n' '\\' '\'' diff --git a/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/err/0023_empty_param_slot.rast b/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/err/0023_empty_param_slot.rast new file mode 100644 index 00000000000..39e35a81ee2 --- /dev/null +++ b/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/err/0023_empty_param_slot.rast @@ -0,0 +1,41 @@ +SOURCE_FILE + FN + FN_KW "fn" + WHITESPACE " " + NAME + IDENT "f" + PARAM_LIST + L_PAREN "(" + PARAM + IDENT_PAT + NAME + IDENT "y" + COLON ":" + WHITESPACE " " + PATH_TYPE + PATH + PATH_SEGMENT + NAME_REF + IDENT "i32" + COMMA "," + WHITESPACE " " + COMMA "," + PARAM + IDENT_PAT + NAME + IDENT "t" + COLON ":" + WHITESPACE " " + PATH_TYPE + PATH + PATH_SEGMENT + NAME_REF + IDENT "i32" + R_PAREN ")" + WHITESPACE " " + BLOCK_EXPR + STMT_LIST + L_CURLY "{" + R_CURLY "}" + WHITESPACE "\n" +error 12: expected value parameter diff --git a/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/err/0023_empty_param_slot.rs b/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/err/0023_empty_param_slot.rs new file mode 100644 index 00000000000..0adf7b8d2f0 --- /dev/null +++ b/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/err/0023_empty_param_slot.rs @@ -0,0 +1 @@ +fn f(y: i32, ,t: i32) {} diff --git a/src/tools/rust-analyzer/crates/project-model/src/build_scripts.rs b/src/tools/rust-analyzer/crates/project-model/src/build_scripts.rs index fb0f3ab7d17..68cd40c040b 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/build_scripts.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/build_scripts.rs @@ -73,6 +73,10 @@ impl WorkspaceBuildScripts { cmd.args(["check", "--quiet", "--workspace", "--message-format=json"]); cmd.args(&config.extra_args); + if let Some(target_dir) = &config.target_dir { + cmd.arg("--target-dir").arg(target_dir); + } + // --all-targets includes tests, benches and examples in addition to the // default lib and bins. This is an independent concept from the --target // flag below. diff --git a/src/tools/rust-analyzer/crates/project-model/src/cargo_workspace.rs b/src/tools/rust-analyzer/crates/project-model/src/cargo_workspace.rs index e47808a2cc9..ca3d6e0596c 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/cargo_workspace.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/cargo_workspace.rs @@ -96,6 +96,8 @@ pub struct CargoConfig { pub extra_env: FxHashMap<String, String>, pub invocation_strategy: InvocationStrategy, pub invocation_location: InvocationLocation, + /// Optional path to use instead of `target` when building + pub target_dir: Option<PathBuf>, } pub type Package = Idx<PackageData>; diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/Cargo.toml b/src/tools/rust-analyzer/crates/rust-analyzer/Cargo.toml index 7410f0a3a66..c85b3e53cda 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/Cargo.toml +++ b/src/tools/rust-analyzer/crates/rust-analyzer/Cargo.toml @@ -23,7 +23,7 @@ anyhow = "1.0.62" crossbeam-channel = "0.5.5" dissimilar = "1.0.4" itertools = "0.10.5" -scip = "0.1.1" +scip = "0.3.1" lsp-types = { version = "=0.94.0", features = ["proposed"] } parking_lot = "0.12.1" xflags = "0.3.0" @@ -57,6 +57,7 @@ flycheck.workspace = true hir-def.workspace = true hir-ty.workspace = true hir.workspace = true +rustc-dependencies.workspace = true ide-db.workspace = true # This should only be used in CLI ide-ssr.workspace = true @@ -67,6 +68,7 @@ profile.workspace = true project-model.workspace = true stdx.workspace = true syntax.workspace = true +parser.workspace = true toolchain.workspace = true vfs-notify.workspace = true vfs.workspace = true @@ -89,4 +91,13 @@ mbe.workspace = true jemalloc = ["jemallocator", "profile/jemalloc"] force-always-assert = ["always-assert/force"] sysroot-abi = [] -in-rust-tree = ["sysroot-abi", "ide/in-rust-tree", "syntax/in-rust-tree"] +in-rust-tree = [ + "sysroot-abi", + "ide/in-rust-tree", + "syntax/in-rust-tree", + "parser/in-rust-tree", + "rustc-dependencies/in-rust-tree", + "hir/in-rust-tree", + "hir-def/in-rust-tree", + "hir-ty/in-rust-tree", +] diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/bin/main.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/bin/main.rs index 2fa14fc7e28..a7d0a0b0dfc 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/bin/main.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/bin/main.rs @@ -3,6 +3,10 @@ //! Based on cli flags, either spawns an LSP server, or runs a batch analysis #![warn(rust_2018_idioms, unused_lifetimes, semicolon_in_expressions_from_macros)] +#![cfg_attr(feature = "in-rust-tree", feature(rustc_private))] +#[cfg(feature = "in-rust-tree")] +#[allow(unused_extern_crates)] +extern crate rustc_driver; mod logger; mod rustc_wrapper; @@ -190,6 +194,12 @@ fn run_server() -> anyhow::Result<()> { } }; + let mut is_visual_studio_code = false; + if let Some(client_info) = client_info { + tracing::info!("Client '{}' {}", client_info.name, client_info.version.unwrap_or_default()); + is_visual_studio_code = client_info.name.starts_with("Visual Studio Code"); + } + let workspace_roots = workspace_folders .map(|workspaces| { workspaces @@ -201,7 +211,7 @@ fn run_server() -> anyhow::Result<()> { }) .filter(|workspaces| !workspaces.is_empty()) .unwrap_or_else(|| vec![root_path.clone()]); - let mut config = Config::new(root_path, capabilities, workspace_roots); + let mut config = Config::new(root_path, capabilities, workspace_roots, is_visual_studio_code); if let Some(json) = initialization_options { if let Err(e) = config.update(json) { use lsp_types::{ @@ -231,10 +241,6 @@ fn run_server() -> anyhow::Result<()> { connection.initialize_finish(initialize_id, initialize_result)?; - if let Some(client_info) = client_info { - tracing::info!("Client '{}' {}", client_info.name, client_info.version.unwrap_or_default()); - } - if !config.has_linked_projects() && config.detached_files().is_empty() { config.rediscover_workspaces(); } diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/analysis_stats.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/analysis_stats.rs index dcb3ca6581c..230ff5f9b86 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/analysis_stats.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/analysis_stats.rs @@ -846,9 +846,7 @@ fn location_csv_pat(db: &RootDatabase, vfs: &Vfs, sm: &BodySourceMap, pat_id: Pa Err(SyntheticSyntax) => return "synthetic,,".to_string(), }; let root = db.parse_or_expand(src.file_id); - let node = src.map(|e| { - e.either(|it| it.to_node(&root).syntax().clone(), |it| it.to_node(&root).syntax().clone()) - }); + let node = src.map(|e| e.to_node(&root).syntax().clone()); let original_range = node.as_ref().original_file_range(db); let path = vfs.file_path(original_range.file_id); let line_index = db.line_index(original_range.file_id); @@ -888,12 +886,7 @@ fn pat_syntax_range( let src = sm.pat_syntax(pat_id); if let Ok(src) = src { let root = db.parse_or_expand(src.file_id); - let node = src.map(|e| { - e.either( - |it| it.to_node(&root).syntax().clone(), - |it| it.to_node(&root).syntax().clone(), - ) - }); + let node = src.map(|e| e.to_node(&root).syntax().clone()); let original_range = node.as_ref().original_file_range(db); let path = vfs.file_path(original_range.file_id); let line_index = db.line_index(original_range.file_id); diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/flags.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/flags.rs index 419440b6df7..fe5022f8606 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/flags.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/flags.rs @@ -131,6 +131,9 @@ xflags::xflags! { /// The output path where the SCIP file will be written to. Defaults to `index.scip`. optional --output path: PathBuf + + /// A path to an json configuration file that can be used to customize cargo behavior. + optional --config-path config_path: PathBuf } } } @@ -239,6 +242,7 @@ pub struct Scip { pub path: PathBuf, pub output: Option<PathBuf>, + pub config_path: Option<PathBuf>, } impl RustAnalyzer { diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/scip.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/scip.rs index 8c056fff000..30e11402cd8 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/scip.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/scip.rs @@ -11,10 +11,8 @@ use ide::{ TokenStaticData, }; use ide_db::LineIndexDatabase; -use load_cargo::{load_workspace, LoadCargoConfig, ProcMacroServerChoice}; -use project_model::{CargoConfig, ProjectManifest, ProjectWorkspace, RustLibSource}; +use load_cargo::{load_workspace_at, LoadCargoConfig, ProcMacroServerChoice}; use scip::types as scip_types; -use std::env; use crate::{ cli::flags, @@ -25,8 +23,6 @@ impl flags::Scip { pub fn run(self) -> anyhow::Result<()> { eprintln!("Generating SCIP start..."); let now = Instant::now(); - let mut cargo_config = CargoConfig::default(); - cargo_config.sysroot = Some(RustLibSource::Discover); let no_progress = &|s| (eprintln!("rust-analyzer: Loading {s}")); let load_cargo_config = LoadCargoConfig { @@ -34,14 +30,27 @@ impl flags::Scip { with_proc_macro_server: ProcMacroServerChoice::Sysroot, prefill_caches: true, }; - let path = vfs::AbsPathBuf::assert(env::current_dir()?.join(&self.path)); - let rootpath = path.normalize(); - let manifest = ProjectManifest::discover_single(&path)?; + let root = vfs::AbsPathBuf::assert(std::env::current_dir()?.join(&self.path)).normalize(); - let workspace = ProjectWorkspace::load(manifest, &cargo_config, no_progress)?; + let mut config = crate::config::Config::new( + root.clone(), + lsp_types::ClientCapabilities::default(), + /* workspace_roots = */ vec![], + /* is_visual_studio_code = */ false, + ); - let (host, vfs, _) = - load_workspace(workspace, &cargo_config.extra_env, &load_cargo_config)?; + if let Some(p) = self.config_path { + let mut file = std::io::BufReader::new(std::fs::File::open(p)?); + let json = serde_json::from_reader(&mut file)?; + config.update(json)?; + } + let cargo_config = config.cargo(); + let (host, vfs, _) = load_workspace_at( + root.as_path().as_ref(), + &cargo_config, + &load_cargo_config, + &no_progress, + )?; let db = host.raw_database(); let analysis = host.analysis(); @@ -58,8 +67,7 @@ impl flags::Scip { .into(), project_root: format!( "file://{}", - path.normalize() - .as_os_str() + root.as_os_str() .to_str() .ok_or(anyhow::format_err!("Unable to normalize project_root path"))? ), @@ -80,7 +88,7 @@ impl flags::Scip { new_symbol }; - let relative_path = match get_relative_filepath(&vfs, &rootpath, file_id) { + let relative_path = match get_relative_filepath(&vfs, &root, file_id) { Some(relative_path) => relative_path, None => continue, }; @@ -125,6 +133,10 @@ impl flags::Scip { documentation: documentation.unwrap_or_default(), relationships: Vec::new(), special_fields: Default::default(), + kind: Default::default(), + display_name: String::new(), + signature_documentation: Default::default(), + enclosing_symbol: String::new(), }; symbols.push(symbol_info) @@ -139,6 +151,7 @@ impl flags::Scip { syntax_kind: Default::default(), diagnostics: Vec::new(), special_fields: Default::default(), + enclosing_range: Vec::new(), }); }); @@ -152,6 +165,7 @@ impl flags::Scip { occurrences, symbols, special_fields: Default::default(), + text: String::new(), }); } diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs index ea3a21241cb..c8df4255d96 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/config.rs @@ -91,6 +91,12 @@ config_data! { /// and should therefore include `--message-format=json` or a similar /// option. /// + /// If there are multiple linked projects/workspaces, this command is invoked for + /// each of them, with the working directory being the workspace root + /// (i.e., the folder containing the `Cargo.toml`). This can be overwritten + /// by changing `#rust-analyzer.cargo.buildScripts.invocationStrategy#` and + /// `#rust-analyzer.cargo.buildScripts.invocationLocation#`. + /// /// By default, a cargo invocation will be constructed for the configured /// targets and features, with the following base command line: /// @@ -182,9 +188,11 @@ config_data! { /// Cargo, you might also want to change /// `#rust-analyzer.cargo.buildScripts.overrideCommand#`. /// - /// If there are multiple linked projects, this command is invoked for - /// each of them, with the working directory being the project root - /// (i.e., the folder containing the `Cargo.toml`). + /// If there are multiple linked projects/workspaces, this command is invoked for + /// each of them, with the working directory being the workspace root + /// (i.e., the folder containing the `Cargo.toml`). This can be overwritten + /// by changing `#rust-analyzer.cargo.check.invocationStrategy#` and + /// `#rust-analyzer.cargo.check.invocationLocation#`. /// /// An example command would be: /// @@ -209,6 +217,8 @@ config_data! { completion_autoself_enable: bool = "true", /// Whether to add parenthesis and argument snippets when completing function. completion_callable_snippets: CallableCompletionDef = "\"fill_arguments\"", + /// Whether to show full function/method signatures in completion docs. + completion_fullFunctionSignatures_enable: bool = "false", /// Maximum number of completions to return. If `None`, the limit is infinite. completion_limit: Option<usize> = "null", /// Whether to show postfix snippets like `dbg`, `if`, `not`, etc. @@ -470,6 +480,14 @@ config_data! { /// tests or binaries. For example, it may be `--release`. runnables_extraArgs: Vec<String> = "[]", + /// Optional path to a rust-analyzer specific target directory. + /// This prevents rust-analyzer's `cargo check` from locking the `Cargo.lock` + /// at the expense of duplicating build artifacts. + /// + /// Set to `true` to use a subdirectory of the existing target directory or + /// set to a path relative to the workspace to use that path. + rust_analyzerTargetDir: Option<TargetDirectory> = "null", + /// Path to the Cargo.toml of the rust compiler workspace, for usage in rustc_private /// projects, or "discover" to try to automatically find it if the `rustc-dev` component /// is installed. @@ -565,6 +583,7 @@ pub struct Config { data: ConfigData, detached_files: Vec<AbsPathBuf>, snippets: Vec<Snippet>, + is_visual_studio_code: bool, } type ParallelCachePrimingNumThreads = u8; @@ -755,11 +774,14 @@ impl fmt::Display for ConfigError { } } +impl std::error::Error for ConfigError {} + impl Config { pub fn new( root_path: AbsPathBuf, caps: ClientCapabilities, workspace_roots: Vec<AbsPathBuf>, + is_visual_studio_code: bool, ) -> Self { Config { caps, @@ -769,6 +791,7 @@ impl Config { root_path, snippets: Default::default(), workspace_roots, + is_visual_studio_code, } } @@ -1248,6 +1271,7 @@ impl Config { run_build_script_command: self.data.cargo_buildScripts_overrideCommand.clone(), extra_args: self.data.cargo_extraArgs.clone(), extra_env: self.data.cargo_extraEnv.clone(), + target_dir: self.target_dir_from_config(), } } @@ -1320,10 +1344,21 @@ impl Config { extra_args: self.check_extra_args(), extra_env: self.check_extra_env(), ansi_color_output: self.color_diagnostic_output(), + target_dir: self.target_dir_from_config(), }, } } + fn target_dir_from_config(&self) -> Option<PathBuf> { + self.data.rust_analyzerTargetDir.as_ref().and_then(|target_dir| match target_dir { + TargetDirectory::UseSubdirectory(yes) if *yes => { + Some(PathBuf::from("target/rust-analyzer")) + } + TargetDirectory::UseSubdirectory(_) => None, + TargetDirectory::Directory(dir) => Some(dir.clone()), + }) + } + pub fn check_on_save(&self) -> bool { self.data.checkOnSave } @@ -1444,6 +1479,7 @@ impl Config { && completion_item_edit_resolve(&self.caps), enable_self_on_the_fly: self.data.completion_autoself_enable, enable_private_editable: self.data.completion_privateEditable_enable, + full_function_signatures: self.data.completion_fullFunctionSignatures_enable, callable: match self.data.completion_callable_snippets { CallableCompletionDef::FillArguments => Some(CallableSnippets::FillArguments), CallableCompletionDef::AddParentheses => Some(CallableSnippets::AddParentheses), @@ -1667,6 +1703,12 @@ impl Config { pub fn typing_autoclose_angle(&self) -> bool { self.data.typing_autoClosingAngleBrackets_enable } + + // FIXME: VSCode seems to work wrong sometimes, see https://github.com/microsoft/vscode/issues/193124 + // hence, distinguish it for now. + pub fn is_visual_studio_code(&self) -> bool { + self.is_visual_studio_code + } } // Deserialization definitions @@ -2015,6 +2057,14 @@ pub enum MemoryLayoutHoverRenderKindDef { Both, } +#[derive(Deserialize, Debug, Clone, PartialEq)] +#[serde(rename_all = "snake_case")] +#[serde(untagged)] +pub enum TargetDirectory { + UseSubdirectory(bool), + Directory(PathBuf), +} + macro_rules! _config_data { (struct $name:ident { $( @@ -2443,6 +2493,19 @@ fn field_props(field: &str, ty: &str, doc: &[&str], default: &str) -> serde_json }, ], }, + "Option<TargetDirectory>" => set! { + "anyOf": [ + { + "type": "null" + }, + { + "type": "boolean" + }, + { + "type": "string" + }, + ], + }, _ => panic!("missing entry for {ty}: {default}"), } @@ -2555,8 +2618,12 @@ mod tests { #[test] fn proc_macro_srv_null() { - let mut config = - Config::new(AbsPathBuf::try_from(project_root()).unwrap(), Default::default(), vec![]); + let mut config = Config::new( + AbsPathBuf::try_from(project_root()).unwrap(), + Default::default(), + vec![], + false, + ); config .update(serde_json::json!({ "procMacro_server": null, @@ -2567,8 +2634,12 @@ mod tests { #[test] fn proc_macro_srv_abs() { - let mut config = - Config::new(AbsPathBuf::try_from(project_root()).unwrap(), Default::default(), vec![]); + let mut config = Config::new( + AbsPathBuf::try_from(project_root()).unwrap(), + Default::default(), + vec![], + false, + ); config .update(serde_json::json!({ "procMacro": {"server": project_root().display().to_string()} @@ -2579,8 +2650,12 @@ mod tests { #[test] fn proc_macro_srv_rel() { - let mut config = - Config::new(AbsPathBuf::try_from(project_root()).unwrap(), Default::default(), vec![]); + let mut config = Config::new( + AbsPathBuf::try_from(project_root()).unwrap(), + Default::default(), + vec![], + false, + ); config .update(serde_json::json!({ "procMacro": {"server": "./server"} @@ -2591,4 +2666,67 @@ mod tests { Some(AbsPathBuf::try_from(project_root().join("./server")).unwrap()) ); } + + #[test] + fn cargo_target_dir_unset() { + let mut config = Config::new( + AbsPathBuf::try_from(project_root()).unwrap(), + Default::default(), + vec![], + false, + ); + config + .update(serde_json::json!({ + "rust": { "analyzerTargetDir": null } + })) + .unwrap(); + assert_eq!(config.data.rust_analyzerTargetDir, None); + assert!( + matches!(config.flycheck(), FlycheckConfig::CargoCommand { target_dir, .. } if target_dir == None) + ); + } + + #[test] + fn cargo_target_dir_subdir() { + let mut config = Config::new( + AbsPathBuf::try_from(project_root()).unwrap(), + Default::default(), + vec![], + false, + ); + config + .update(serde_json::json!({ + "rust": { "analyzerTargetDir": true } + })) + .unwrap(); + assert_eq!( + config.data.rust_analyzerTargetDir, + Some(TargetDirectory::UseSubdirectory(true)) + ); + assert!( + matches!(config.flycheck(), FlycheckConfig::CargoCommand { target_dir, .. } if target_dir == Some(PathBuf::from("target/rust-analyzer"))) + ); + } + + #[test] + fn cargo_target_dir_relative_dir() { + let mut config = Config::new( + AbsPathBuf::try_from(project_root()).unwrap(), + Default::default(), + vec![], + false, + ); + config + .update(serde_json::json!({ + "rust": { "analyzerTargetDir": "other_folder" } + })) + .unwrap(); + assert_eq!( + config.data.rust_analyzerTargetDir, + Some(TargetDirectory::Directory(PathBuf::from("other_folder"))) + ); + assert!( + matches!(config.flycheck(), FlycheckConfig::CargoCommand { target_dir, .. } if target_dir == Some(PathBuf::from("other_folder"))) + ); + } } diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/diagnostics/to_proto.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/diagnostics/to_proto.rs index 731580557c2..f8bc66ff8e7 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/diagnostics/to_proto.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/diagnostics/to_proto.rs @@ -538,7 +538,12 @@ mod tests { let (sender, _) = crossbeam_channel::unbounded(); let state = GlobalState::new( sender, - Config::new(workspace_root.to_path_buf(), ClientCapabilities::default(), Vec::new()), + Config::new( + workspace_root.to_path_buf(), + ClientCapabilities::default(), + Vec::new(), + false, + ), ); let snap = state.snapshot(); let mut actual = map_rust_diagnostic_to_lsp(&config, &diagnostic, workspace_root, &snap); diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs index b8a1a39be19..06c27332d44 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/handlers/request.rs @@ -4,6 +4,7 @@ use std::{ fs, io::Write as _, + path::PathBuf, process::{self, Stdio}, }; @@ -1995,7 +1996,25 @@ fn run_rustfmt( cmd } RustfmtConfig::CustomCommand { command, args } => { - let mut cmd = process::Command::new(command); + let cmd = PathBuf::from(&command); + let workspace = CargoTargetSpec::for_file(&snap, file_id)?; + let mut cmd = match workspace { + Some(spec) => { + // approach: if the command name contains a path separator, join it with the workspace root. + // however, if the path is absolute, joining will result in the absolute path being preserved. + // as a fallback, rely on $PATH-based discovery. + let cmd_path = + if cfg!(windows) && command.contains(&[std::path::MAIN_SEPARATOR, '/']) { + spec.workspace_root.join(cmd).into() + } else if command.contains(std::path::MAIN_SEPARATOR) { + spec.workspace_root.join(cmd).into() + } else { + cmd + }; + process::Command::new(cmd_path) + } + None => process::Command::new(cmd), + }; cmd.envs(snap.config.extra_env()); cmd.args(args); @@ -2003,6 +2022,8 @@ fn run_rustfmt( } }; + tracing::debug!(?command, "created format command"); + // try to chdir to the file so we can respect `rustfmt.toml` // FIXME: use `rustfmt --config-path` once // https://github.com/rust-lang/rustfmt/issues/4660 gets fixed diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/integrated_benchmarks.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/integrated_benchmarks.rs index 5a11012b93c..2c402552919 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/integrated_benchmarks.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/integrated_benchmarks.rs @@ -134,6 +134,7 @@ fn integrated_completion_benchmark() { enable_imports_on_the_fly: true, enable_self_on_the_fly: true, enable_private_editable: true, + full_function_signatures: false, callable: Some(CallableSnippets::FillArguments), snippet_cap: SnippetCap::new(true), insert_use: InsertUseConfig { @@ -173,6 +174,7 @@ fn integrated_completion_benchmark() { enable_imports_on_the_fly: true, enable_self_on_the_fly: true, enable_private_editable: true, + full_function_signatures: false, callable: Some(CallableSnippets::FillArguments), snippet_cap: SnippetCap::new(true), insert_use: InsertUseConfig { diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/lsp/to_proto.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/lsp/to_proto.rs index 23074493aee..aca91570f7c 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/lsp/to_proto.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/lsp/to_proto.rs @@ -443,15 +443,17 @@ pub(crate) fn inlay_hint( file_id: FileId, inlay_hint: InlayHint, ) -> Cancellable<lsp_types::InlayHint> { + let is_visual_studio_code = snap.config.is_visual_studio_code(); let needs_resolve = inlay_hint.needs_resolve; let (label, tooltip, mut something_to_resolve) = inlay_hint_label(snap, fields_to_resolve, needs_resolve, inlay_hint.label)?; - let text_edits = if needs_resolve && fields_to_resolve.resolve_text_edits { - something_to_resolve |= inlay_hint.text_edit.is_some(); - None - } else { - inlay_hint.text_edit.map(|it| text_edit_vec(line_index, it)) - }; + let text_edits = + if !is_visual_studio_code && needs_resolve && fields_to_resolve.resolve_text_edits { + something_to_resolve |= inlay_hint.text_edit.is_some(); + None + } else { + inlay_hint.text_edit.map(|it| text_edit_vec(line_index, it)) + }; let data = if needs_resolve && something_to_resolve { Some(to_value(lsp_ext::InlayHintResolveData { file_id: file_id.0 }).unwrap()) } else { diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/support.rs b/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/support.rs index e49b5768fa4..106b99cb935 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/support.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/support.rs @@ -150,6 +150,7 @@ impl Project<'_> { ..Default::default() }, roots, + false, ); config.update(self.config).expect("invalid config"); config.rediscover_workspaces(); diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/tidy.rs b/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/tidy.rs index 8b5c92c6602..56b5fcef3c2 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/tidy.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/tidy.rs @@ -157,7 +157,6 @@ Apache-2.0 OR MIT Apache-2.0 WITH LLVM-exception OR Apache-2.0 OR MIT Apache-2.0/MIT BSD-3-Clause -BlueOak-1.0.0 OR MIT OR Apache-2.0 CC0-1.0 ISC MIT @@ -300,6 +299,8 @@ fn check_test_attrs(path: &Path, text: &str) { // This file. "slow-tests/tidy.rs", "test-utils/src/fixture.rs", + // Generated code from lints contains doc tests in string literals. + "ide-db/src/generated/lints.rs", ]; if text.contains("#[should_panic") && !need_panic.iter().any(|p| path.ends_with(p)) { panic!( diff --git a/src/tools/rust-analyzer/crates/rustc-dependencies/Cargo.toml b/src/tools/rust-analyzer/crates/rustc-dependencies/Cargo.toml new file mode 100644 index 00000000000..a313507bff3 --- /dev/null +++ b/src/tools/rust-analyzer/crates/rustc-dependencies/Cargo.toml @@ -0,0 +1,20 @@ +[package] +name = "rustc-dependencies" +version = "0.0.0" +description = "TBD" + +rust-version.workspace = true +edition.workspace = true +license.workspace = true +authors.workspace = true + +# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html + +[dependencies] +ra-ap-rustc_lexer = { version = "0.18.0" } +ra-ap-rustc_parse_format = { version = "0.14.0", default-features = false } +ra-ap-rustc_index = { version = "0.18.0", default-features = false } +ra-ap-rustc_abi = { version = "0.18.0", default-features = false } + +[features] +in-rust-tree = [] diff --git a/src/tools/rust-analyzer/crates/rustc-dependencies/src/lib.rs b/src/tools/rust-analyzer/crates/rustc-dependencies/src/lib.rs new file mode 100644 index 00000000000..13fcbc49193 --- /dev/null +++ b/src/tools/rust-analyzer/crates/rustc-dependencies/src/lib.rs @@ -0,0 +1,48 @@ +//! A wrapper around rustc internal crates, which enables switching between compiler provided +//! ones and stable ones published in crates.io + +#![cfg_attr(feature = "in-rust-tree", feature(rustc_private))] + +#[cfg(feature = "in-rust-tree")] +extern crate rustc_lexer; + +pub mod lexer { + #[cfg(not(feature = "in-rust-tree"))] + pub use ::ra_ap_rustc_lexer::*; + + #[cfg(feature = "in-rust-tree")] + pub use ::rustc_lexer::*; +} + +#[cfg(feature = "in-rust-tree")] +extern crate rustc_parse_format; + +pub mod parse_format { + #[cfg(not(feature = "in-rust-tree"))] + pub use ::ra_ap_rustc_parse_format::*; + + #[cfg(feature = "in-rust-tree")] + pub use ::rustc_parse_format::*; +} + +#[cfg(feature = "in-rust-tree")] +extern crate rustc_abi; + +pub mod abi { + #[cfg(not(feature = "in-rust-tree"))] + pub use ::ra_ap_rustc_abi::*; + + #[cfg(feature = "in-rust-tree")] + pub use ::rustc_abi::*; +} + +#[cfg(feature = "in-rust-tree")] +extern crate rustc_index; + +pub mod index { + #[cfg(not(feature = "in-rust-tree"))] + pub use ::ra_ap_rustc_index::*; + + #[cfg(feature = "in-rust-tree")] + pub use ::rustc_index::*; +} diff --git a/src/tools/rust-analyzer/crates/stdx/src/anymap.rs b/src/tools/rust-analyzer/crates/stdx/src/anymap.rs new file mode 100644 index 00000000000..fd44e6c6d0f --- /dev/null +++ b/src/tools/rust-analyzer/crates/stdx/src/anymap.rs @@ -0,0 +1,379 @@ +//! This file is a port of only the necessary features from https://github.com/chris-morgan/anymap version 1.0.0-beta.2 for use within rust-analyzer. +//! Copyright © 2014–2022 Chris Morgan. COPYING: https://github.com/chris-morgan/anymap/blob/master/COPYING" +//! Note that the license is changed from Blue Oak Model 1.0.0 or MIT or Apache-2.0 to MIT OR Apache-2.0 +//! +//! This implementation provides a safe and convenient store for one value of each type. +//! +//! Your starting point is [`Map`]. It has an example. +//! +//! # Cargo features +//! +//! This implementation has two independent features, each of which provides an implementation providing +//! types `Map`, `AnyMap`, `OccupiedEntry`, `VacantEntry`, `Entry` and `RawMap`: +//! +//! - **std** (default, *enabled* in this build): +//! an implementation using `std::collections::hash_map`, placed in the crate root +//! (e.g. `anymap::AnyMap`). + +#![warn(missing_docs, unused_results)] + +use core::convert::TryInto; +use core::hash::Hasher; + +/// A hasher designed to eke a little more speed out, given `TypeId`’s known characteristics. +/// +/// Specifically, this is a no-op hasher that expects to be fed a u64’s worth of +/// randomly-distributed bits. It works well for `TypeId` (eliminating start-up time, so that my +/// get_missing benchmark is ~30ns rather than ~900ns, and being a good deal faster after that, so +/// that my insert_and_get_on_260_types benchmark is ~12μs instead of ~21.5μs), but will +/// panic in debug mode and always emit zeros in release mode for any other sorts of inputs, so +/// yeah, don’t use it! 😀 +#[derive(Default)] +pub struct TypeIdHasher { + value: u64, +} + +impl Hasher for TypeIdHasher { + #[inline] + fn write(&mut self, bytes: &[u8]) { + // This expects to receive exactly one 64-bit value, and there’s no realistic chance of + // that changing, but I don’t want to depend on something that isn’t expressly part of the + // contract for safety. But I’m OK with release builds putting everything in one bucket + // if it *did* change (and debug builds panicking). + debug_assert_eq!(bytes.len(), 8); + let _ = bytes.try_into().map(|array| self.value = u64::from_ne_bytes(array)); + } + + #[inline] + fn finish(&self) -> u64 { + self.value + } +} + +use core::any::{Any, TypeId}; +use core::hash::BuildHasherDefault; +use core::marker::PhantomData; + +use ::std::collections::hash_map::{self, HashMap}; + +/// Raw access to the underlying `HashMap`. +/// +/// This alias is provided for convenience because of the ugly third generic parameter. +pub type RawMap<A> = HashMap<TypeId, Box<A>, BuildHasherDefault<TypeIdHasher>>; + +/// A collection containing zero or one values for any given type and allowing convenient, +/// type-safe access to those values. +/// +/// The type parameter `A` allows you to use a different value type; normally you will want +/// it to be `core::any::Any` (also known as `std::any::Any`), but there are other choices: +/// +/// - If you want the entire map to be cloneable, use `CloneAny` instead of `Any`; with +/// that, you can only add types that implement `Clone` to the map. +/// - You can add on `+ Send` or `+ Send + Sync` (e.g. `Map<dyn Any + Send>`) to add those +/// auto traits. +/// +/// Cumulatively, there are thus six forms of map: +/// +/// - <code>[Map]<dyn [core::any::Any]></code>, +/// also spelled [`AnyMap`] for convenience. +/// - <code>[Map]<dyn [core::any::Any] + Send></code> +/// - <code>[Map]<dyn [core::any::Any] + Send + Sync></code> +/// - <code>[Map]<dyn [CloneAny]></code> +/// - <code>[Map]<dyn [CloneAny] + Send></code> +/// - <code>[Map]<dyn [CloneAny] + Send + Sync></code> +/// +/// ## Example +/// +/// (Here using the [`AnyMap`] convenience alias; the first line could use +/// <code>[anymap::Map][Map]::<[core::any::Any]>::new()</code> instead if desired.) +/// +/// ```rust +#[doc = "let mut data = anymap::AnyMap::new();"] +/// assert_eq!(data.get(), None::<&i32>); +/// ``` +/// +/// Values containing non-static references are not permitted. +#[derive(Debug)] +pub struct Map<A: ?Sized + Downcast = dyn Any> { + raw: RawMap<A>, +} + +/// The most common type of `Map`: just using `Any`; <code>[Map]<dyn [Any]></code>. +/// +/// Why is this a separate type alias rather than a default value for `Map<A>`? +/// `Map::new()` doesn’t seem to be happy to infer that it should go with the default +/// value. It’s a bit sad, really. Ah well, I guess this approach will do. +pub type AnyMap = Map<dyn Any>; +impl<A: ?Sized + Downcast> Default for Map<A> { + #[inline] + fn default() -> Map<A> { + Map::new() + } +} + +impl<A: ?Sized + Downcast> Map<A> { + /// Create an empty collection. + #[inline] + pub fn new() -> Map<A> { + Map { raw: RawMap::with_hasher(Default::default()) } + } + + /// Returns a reference to the value stored in the collection for the type `T`, + /// if it exists. + #[inline] + pub fn get<T: IntoBox<A>>(&self) -> Option<&T> { + self.raw.get(&TypeId::of::<T>()).map(|any| unsafe { any.downcast_ref_unchecked::<T>() }) + } + + /// Gets the entry for the given type in the collection for in-place manipulation + #[inline] + pub fn entry<T: IntoBox<A>>(&mut self) -> Entry<'_, A, T> { + match self.raw.entry(TypeId::of::<T>()) { + hash_map::Entry::Occupied(e) => { + Entry::Occupied(OccupiedEntry { inner: e, type_: PhantomData }) + } + hash_map::Entry::Vacant(e) => { + Entry::Vacant(VacantEntry { inner: e, type_: PhantomData }) + } + } + } +} + +/// A view into a single occupied location in an `Map`. +pub struct OccupiedEntry<'a, A: ?Sized + Downcast, V: 'a> { + inner: hash_map::OccupiedEntry<'a, TypeId, Box<A>>, + type_: PhantomData<V>, +} + +/// A view into a single empty location in an `Map`. +pub struct VacantEntry<'a, A: ?Sized + Downcast, V: 'a> { + inner: hash_map::VacantEntry<'a, TypeId, Box<A>>, + type_: PhantomData<V>, +} + +/// A view into a single location in an `Map`, which may be vacant or occupied. +pub enum Entry<'a, A: ?Sized + Downcast, V> { + /// An occupied Entry + Occupied(OccupiedEntry<'a, A, V>), + /// A vacant Entry + Vacant(VacantEntry<'a, A, V>), +} + +impl<'a, A: ?Sized + Downcast, V: IntoBox<A>> Entry<'a, A, V> { + /// Ensures a value is in the entry by inserting the result of the default function if + /// empty, and returns a mutable reference to the value in the entry. + #[inline] + pub fn or_insert_with<F: FnOnce() -> V>(self, default: F) -> &'a mut V { + match self { + Entry::Occupied(inner) => inner.into_mut(), + Entry::Vacant(inner) => inner.insert(default()), + } + } +} + +impl<'a, A: ?Sized + Downcast, V: IntoBox<A>> OccupiedEntry<'a, A, V> { + /// Converts the OccupiedEntry into a mutable reference to the value in the entry + /// with a lifetime bound to the collection itself + #[inline] + pub fn into_mut(self) -> &'a mut V { + unsafe { self.inner.into_mut().downcast_mut_unchecked() } + } +} + +impl<'a, A: ?Sized + Downcast, V: IntoBox<A>> VacantEntry<'a, A, V> { + /// Sets the value of the entry with the VacantEntry's key, + /// and returns a mutable reference to it + #[inline] + pub fn insert(self, value: V) -> &'a mut V { + unsafe { self.inner.insert(value.into_box()).downcast_mut_unchecked() } + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[derive(Clone, Debug, PartialEq)] + struct A(i32); + #[derive(Clone, Debug, PartialEq)] + struct B(i32); + #[derive(Clone, Debug, PartialEq)] + struct C(i32); + #[derive(Clone, Debug, PartialEq)] + struct D(i32); + #[derive(Clone, Debug, PartialEq)] + struct E(i32); + #[derive(Clone, Debug, PartialEq)] + struct F(i32); + #[derive(Clone, Debug, PartialEq)] + struct J(i32); + + #[test] + fn test_varieties() { + fn assert_send<T: Send>() {} + fn assert_sync<T: Sync>() {} + fn assert_debug<T: ::core::fmt::Debug>() {} + assert_send::<Map<dyn Any + Send>>(); + assert_send::<Map<dyn Any + Send + Sync>>(); + assert_sync::<Map<dyn Any + Send + Sync>>(); + assert_debug::<Map<dyn Any>>(); + assert_debug::<Map<dyn Any + Send>>(); + assert_debug::<Map<dyn Any + Send + Sync>>(); + assert_send::<Map<dyn CloneAny + Send>>(); + assert_send::<Map<dyn CloneAny + Send + Sync>>(); + assert_sync::<Map<dyn CloneAny + Send + Sync>>(); + assert_debug::<Map<dyn CloneAny>>(); + assert_debug::<Map<dyn CloneAny + Send>>(); + assert_debug::<Map<dyn CloneAny + Send + Sync>>(); + } + + #[test] + fn type_id_hasher() { + use core::any::TypeId; + use core::hash::Hash; + fn verify_hashing_with(type_id: TypeId) { + let mut hasher = TypeIdHasher::default(); + type_id.hash(&mut hasher); + // SAFETY: u64 is valid for all bit patterns. + let _ = hasher.finish(); + } + // Pick a variety of types, just to demonstrate it’s all sane. Normal, zero-sized, unsized, &c. + verify_hashing_with(TypeId::of::<usize>()); + verify_hashing_with(TypeId::of::<()>()); + verify_hashing_with(TypeId::of::<str>()); + verify_hashing_with(TypeId::of::<&str>()); + verify_hashing_with(TypeId::of::<Vec<u8>>()); + } +} + +// impl some traits for dyn Any +use core::fmt; + +#[doc(hidden)] +pub trait CloneToAny { + /// Clone `self` into a new `Box<dyn CloneAny>` object. + fn clone_to_any(&self) -> Box<dyn CloneAny>; +} + +impl<T: Any + Clone> CloneToAny for T { + #[inline] + fn clone_to_any(&self) -> Box<dyn CloneAny> { + Box::new(self.clone()) + } +} + +macro_rules! impl_clone { + ($t:ty) => { + impl Clone for Box<$t> { + #[inline] + fn clone(&self) -> Box<$t> { + // SAFETY: this dance is to reapply any Send/Sync marker. I’m not happy about this + // approach, given that I used to do it in safe code, but then came a dodgy + // future-compatibility warning where_clauses_object_safety, which is spurious for + // auto traits but still super annoying (future-compatibility lints seem to mean + // your bin crate needs a corresponding allow!). Although I explained my plight¹ + // and it was all explained and agreed upon, no action has been taken. So I finally + // caved and worked around it by doing it this way, which matches what’s done for + // core::any², so it’s probably not *too* bad. + // + // ¹ https://github.com/rust-lang/rust/issues/51443#issuecomment-421988013 + // ² https://github.com/rust-lang/rust/blob/e7825f2b690c9a0d21b6f6d84c404bb53b151b38/library/alloc/src/boxed.rs#L1613-L1616 + let clone: Box<dyn CloneAny> = (**self).clone_to_any(); + let raw: *mut dyn CloneAny = Box::into_raw(clone); + unsafe { Box::from_raw(raw as *mut $t) } + } + } + + impl fmt::Debug for $t { + #[inline] + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + f.pad(stringify!($t)) + } + } + }; +} + +/// Methods for downcasting from an `Any`-like trait object. +/// +/// This should only be implemented on trait objects for subtraits of `Any`, though you can +/// implement it for other types and it’ll work fine, so long as your implementation is correct. +pub trait Downcast { + /// Gets the `TypeId` of `self`. + fn type_id(&self) -> TypeId; + + // Note the bound through these downcast methods is 'static, rather than the inexpressible + // concept of Self-but-as-a-trait (where Self is `dyn Trait`). This is sufficient, exceeding + // TypeId’s requirements. Sure, you *can* do CloneAny.downcast_unchecked::<NotClone>() and the + // type system won’t protect you, but that doesn’t introduce any unsafety: the method is + // already unsafe because you can specify the wrong type, and if this were exposing safe + // downcasting, CloneAny.downcast::<NotClone>() would just return an error, which is just as + // correct. + // + // Now in theory we could also add T: ?Sized, but that doesn’t play nicely with the common + // implementation, so I’m doing without it. + + /// Downcast from `&Any` to `&T`, without checking the type matches. + /// + /// # Safety + /// + /// The caller must ensure that `T` matches the trait object, on pain of *undefined behaviour*. + unsafe fn downcast_ref_unchecked<T: 'static>(&self) -> &T; + + /// Downcast from `&mut Any` to `&mut T`, without checking the type matches. + /// + /// # Safety + /// + /// The caller must ensure that `T` matches the trait object, on pain of *undefined behaviour*. + unsafe fn downcast_mut_unchecked<T: 'static>(&mut self) -> &mut T; +} + +/// A trait for the conversion of an object into a boxed trait object. +pub trait IntoBox<A: ?Sized + Downcast>: Any { + /// Convert self into the appropriate boxed form. + fn into_box(self) -> Box<A>; +} + +macro_rules! implement { + ($any_trait:ident $(+ $auto_traits:ident)*) => { + impl Downcast for dyn $any_trait $(+ $auto_traits)* { + #[inline] + fn type_id(&self) -> TypeId { + self.type_id() + } + + #[inline] + unsafe fn downcast_ref_unchecked<T: 'static>(&self) -> &T { + &*(self as *const Self as *const T) + } + + #[inline] + unsafe fn downcast_mut_unchecked<T: 'static>(&mut self) -> &mut T { + &mut *(self as *mut Self as *mut T) + } + } + + impl<T: $any_trait $(+ $auto_traits)*> IntoBox<dyn $any_trait $(+ $auto_traits)*> for T { + #[inline] + fn into_box(self) -> Box<dyn $any_trait $(+ $auto_traits)*> { + Box::new(self) + } + } + } +} + +implement!(Any); +implement!(Any + Send); +implement!(Any + Send + Sync); + +/// [`Any`], but with cloning. +/// +/// Every type with no non-`'static` references that implements `Clone` implements `CloneAny`. +/// See [`core::any`] for more details on `Any` in general. +pub trait CloneAny: Any + CloneToAny {} +impl<T: Any + Clone> CloneAny for T {} +implement!(CloneAny); +implement!(CloneAny + Send); +implement!(CloneAny + Send + Sync); +impl_clone!(dyn CloneAny); +impl_clone!(dyn CloneAny + Send); +impl_clone!(dyn CloneAny + Send + Sync); diff --git a/src/tools/rust-analyzer/crates/stdx/src/lib.rs b/src/tools/rust-analyzer/crates/stdx/src/lib.rs index 24990d6a0e7..f26c7f6dfc2 100644 --- a/src/tools/rust-analyzer/crates/stdx/src/lib.rs +++ b/src/tools/rust-analyzer/crates/stdx/src/lib.rs @@ -12,6 +12,7 @@ pub mod panic_context; pub mod non_empty_vec; pub mod rand; pub mod thread; +pub mod anymap; pub use always_assert::{always, never}; @@ -89,6 +90,57 @@ where words.join("_") } +// Taken from rustc. +pub fn to_camel_case(ident: &str) -> String { + ident + .trim_matches('_') + .split('_') + .filter(|component| !component.is_empty()) + .map(|component| { + let mut camel_cased_component = String::with_capacity(component.len()); + + let mut new_word = true; + let mut prev_is_lower_case = true; + + for c in component.chars() { + // Preserve the case if an uppercase letter follows a lowercase letter, so that + // `camelCase` is converted to `CamelCase`. + if prev_is_lower_case && c.is_uppercase() { + new_word = true; + } + + if new_word { + camel_cased_component.extend(c.to_uppercase()); + } else { + camel_cased_component.extend(c.to_lowercase()); + } + + prev_is_lower_case = c.is_lowercase(); + new_word = false; + } + + camel_cased_component + }) + .fold((String::new(), None), |(acc, prev): (_, Option<String>), next| { + // separate two components with an underscore if their boundary cannot + // be distinguished using an uppercase/lowercase case distinction + let join = prev + .and_then(|prev| { + let f = next.chars().next()?; + let l = prev.chars().last()?; + Some(!char_has_case(l) && !char_has_case(f)) + }) + .unwrap_or(false); + (acc + if join { "_" } else { "" } + &next, Some(next)) + }) + .0 +} + +// Taken from rustc. +pub fn char_has_case(c: char) -> bool { + c.is_lowercase() || c.is_uppercase() +} + pub fn replace(buf: &mut String, from: char, to: &str) { if !buf.contains(from) { return; diff --git a/src/tools/rust-analyzer/crates/stdx/src/macros.rs b/src/tools/rust-analyzer/crates/stdx/src/macros.rs index 1a9982fa8b2..d71e418c89b 100644 --- a/src/tools/rust-analyzer/crates/stdx/src/macros.rs +++ b/src/tools/rust-analyzer/crates/stdx/src/macros.rs @@ -15,7 +15,12 @@ macro_rules! eprintln { macro_rules! format_to { ($buf:expr) => (); ($buf:expr, $lit:literal $($arg:tt)*) => { - { use ::std::fmt::Write as _; let _ = ::std::write!($buf, $lit $($arg)*); } + { + use ::std::fmt::Write as _; + // We can't do ::std::fmt::Write::write_fmt($buf, format_args!($lit $($arg)*)) + // unfortunately, as that loses out on autoref behavior. + _ = $buf.write_fmt(format_args!($lit $($arg)*)) + } }; } diff --git a/src/tools/rust-analyzer/crates/stdx/src/process.rs b/src/tools/rust-analyzer/crates/stdx/src/process.rs index e5aa3436518..bca0cbc36d1 100644 --- a/src/tools/rust-analyzer/crates/stdx/src/process.rs +++ b/src/tools/rust-analyzer/crates/stdx/src/process.rs @@ -23,7 +23,7 @@ pub fn streaming_output( let idx = if eof { data.len() } else { - match data.iter().rposition(|b| *b == b'\n') { + match data.iter().rposition(|&b| b == b'\n') { Some(i) => i + 1, None => return, } diff --git a/src/tools/rust-analyzer/crates/syntax/Cargo.toml b/src/tools/rust-analyzer/crates/syntax/Cargo.toml index 5ee0c479284..dc92366d1c7 100644 --- a/src/tools/rust-analyzer/crates/syntax/Cargo.toml +++ b/src/tools/rust-analyzer/crates/syntax/Cargo.toml @@ -23,7 +23,7 @@ indexmap = "2.0.0" smol_str.workspace = true triomphe.workspace = true -rustc_lexer.workspace = true +rustc-dependencies.workspace = true parser.workspace = true profile.workspace = true @@ -41,4 +41,4 @@ test-utils.workspace = true sourcegen.workspace = true [features] -in-rust-tree = [] +in-rust-tree = ["rustc-dependencies/in-rust-tree"] diff --git a/src/tools/rust-analyzer/crates/syntax/src/ast/edit_in_place.rs b/src/tools/rust-analyzer/crates/syntax/src/ast/edit_in_place.rs index a150d9e6c07..a85e1d1d9d0 100644 --- a/src/tools/rust-analyzer/crates/syntax/src/ast/edit_in_place.rs +++ b/src/tools/rust-analyzer/crates/syntax/src/ast/edit_in_place.rs @@ -224,7 +224,7 @@ pub trait AttrsOwnerEdit: ast::HasAttrs { let after_attrs_and_comments = node .children_with_tokens() .find(|it| !matches!(it.kind(), WHITESPACE | COMMENT | ATTR)) - .map_or(Position::first_child_of(node), |it| Position::before(it)); + .map_or(Position::first_child_of(node), Position::before); ted::insert_all( after_attrs_and_comments, @@ -433,7 +433,9 @@ impl ast::UseTree { if &path == prefix && self.use_tree_list().is_none() { if self.star_token().is_some() { // path$0::* -> * - self.coloncolon_token().map(ted::remove); + if let Some(a) = self.coloncolon_token() { + ted::remove(a) + } ted::remove(prefix.syntax()); } else { // path$0 -> self @@ -460,7 +462,9 @@ impl ast::UseTree { for p in successors(parent.parent_path(), |it| it.parent_path()) { p.segment()?; } - prefix.parent_path().and_then(|p| p.coloncolon_token()).map(ted::remove); + if let Some(a) = prefix.parent_path().and_then(|p| p.coloncolon_token()) { + ted::remove(a) + } ted::remove(prefix.syntax()); Some(()) } @@ -976,7 +980,9 @@ enum Foo { fn check_add_variant(before: &str, expected: &str, variant: ast::Variant) { let enum_ = ast_mut_from_text::<ast::Enum>(before); - enum_.variant_list().map(|it| it.add_variant(variant)); + if let Some(it) = enum_.variant_list() { + it.add_variant(variant) + } let after = enum_.to_string(); assert_eq_text!(&trim_indent(expected.trim()), &trim_indent(after.trim())); } diff --git a/src/tools/rust-analyzer/crates/syntax/src/ast/make.rs b/src/tools/rust-analyzer/crates/syntax/src/ast/make.rs index 17e311c0c50..31a858b91a7 100644 --- a/src/tools/rust-analyzer/crates/syntax/src/ast/make.rs +++ b/src/tools/rust-analyzer/crates/syntax/src/ast/make.rs @@ -433,7 +433,6 @@ pub fn record_field( ast_from_text(&format!("struct S {{ {visibility}{name}: {ty}, }}")) } -// TODO pub fn block_expr( stmts: impl IntoIterator<Item = ast::Stmt>, tail_expr: Option<ast::Expr>, @@ -853,6 +852,10 @@ pub fn self_param() -> ast::SelfParam { ast_from_text("fn f(&self) { }") } +pub fn mut_self_param() -> ast::SelfParam { + ast_from_text("fn f(&mut self) { }") +} + pub fn ret_type(ty: ast::Type) -> ast::RetType { ast_from_text(&format!("fn f() -> {ty} {{ }}")) } @@ -973,6 +976,11 @@ pub fn tuple_field(visibility: Option<ast::Visibility>, ty: ast::Type) -> ast::T ast_from_text(&format!("struct f({visibility}{ty});")) } +pub fn variant_list(variants: impl IntoIterator<Item = ast::Variant>) -> ast::VariantList { + let variants = variants.into_iter().join(", "); + ast_from_text(&format!("enum f {{ {variants} }}")) +} + pub fn variant(name: ast::Name, field_list: Option<ast::FieldList>) -> ast::Variant { let field_list = match field_list { None => String::new(), @@ -1037,6 +1045,19 @@ pub fn struct_( ast_from_text(&format!("{visibility}struct {strukt_name}{type_params}{field_list}{semicolon}",)) } +pub fn enum_( + visibility: Option<ast::Visibility>, + enum_name: ast::Name, + variant_list: ast::VariantList, +) -> ast::Enum { + let visibility = match visibility { + None => String::new(), + Some(it) => format!("{it} "), + }; + + ast_from_text(&format!("{visibility}enum {enum_name} {variant_list}")) +} + pub fn attr_outer(meta: ast::Meta) -> ast::Attr { ast_from_text(&format!("#[{meta}]")) } @@ -1149,6 +1170,16 @@ pub mod tokens { lit.syntax().first_child_or_token().unwrap().into_token().unwrap() } + pub fn ident(text: &str) -> SyntaxToken { + assert_eq!(text.trim(), text); + let path: ast::Path = super::ext::ident_path(text); + path.syntax() + .descendants_with_tokens() + .filter_map(|it| it.into_token()) + .find(|it| it.kind() == IDENT) + .unwrap() + } + pub fn single_newline() -> SyntaxToken { let res = SOURCE_FILE .tree() diff --git a/src/tools/rust-analyzer/crates/syntax/src/ast/token_ext.rs b/src/tools/rust-analyzer/crates/syntax/src/ast/token_ext.rs index 87fd51d703c..8cc271d226c 100644 --- a/src/tools/rust-analyzer/crates/syntax/src/ast/token_ext.rs +++ b/src/tools/rust-analyzer/crates/syntax/src/ast/token_ext.rs @@ -2,6 +2,8 @@ use std::borrow::Cow; +use rustc_dependencies::lexer as rustc_lexer; + use rustc_lexer::unescape::{ unescape_byte, unescape_c_string, unescape_char, unescape_literal, CStrUnit, Mode, }; diff --git a/src/tools/rust-analyzer/crates/syntax/src/lib.rs b/src/tools/rust-analyzer/crates/syntax/src/lib.rs index 27c8a13e58d..4939ab39049 100644 --- a/src/tools/rust-analyzer/crates/syntax/src/lib.rs +++ b/src/tools/rust-analyzer/crates/syntax/src/lib.rs @@ -19,6 +19,7 @@ //! [RFC]: <https://github.com/rust-lang/rfcs/pull/2256> //! [Swift]: <https://github.com/apple/swift/blob/13d593df6f359d0cb2fc81cfaac273297c539455/lib/Syntax/README.md> +#![cfg_attr(feature = "in-rust-tree", feature(rustc_private))] #![warn(rust_2018_idioms, unused_lifetimes, semicolon_in_expressions_from_macros)] #[allow(unused)] @@ -74,7 +75,7 @@ pub use smol_str::SmolStr; #[derive(Debug, PartialEq, Eq)] pub struct Parse<T> { green: GreenNode, - errors: Arc<Vec<SyntaxError>>, + errors: Arc<[SyntaxError]>, _ty: PhantomData<fn() -> T>, } @@ -86,7 +87,7 @@ impl<T> Clone for Parse<T> { impl<T> Parse<T> { fn new(green: GreenNode, errors: Vec<SyntaxError>) -> Parse<T> { - Parse { green, errors: Arc::new(errors), _ty: PhantomData } + Parse { green, errors: errors.into(), _ty: PhantomData } } pub fn syntax_node(&self) -> SyntaxNode { @@ -106,7 +107,7 @@ impl<T: AstNode> Parse<T> { T::cast(self.syntax_node()).unwrap() } - pub fn ok(self) -> Result<T, Arc<Vec<SyntaxError>>> { + pub fn ok(self) -> Result<T, Arc<[SyntaxError]>> { if self.errors.is_empty() { Ok(self.tree()) } else { @@ -143,7 +144,7 @@ impl Parse<SourceFile> { parsing::incremental_reparse(self.tree().syntax(), indel, self.errors.to_vec()).map( |(green_node, errors, _reparsed_range)| Parse { green: green_node, - errors: Arc::new(errors), + errors: errors.into(), _ty: PhantomData, }, ) @@ -167,7 +168,7 @@ impl SourceFile { errors.extend(validation::validate(&root)); assert_eq!(root.kind(), SyntaxKind::SOURCE_FILE); - Parse { green, errors: Arc::new(errors), _ty: PhantomData } + Parse { green, errors: errors.into(), _ty: PhantomData } } } @@ -181,29 +182,27 @@ impl ast::TokenTree { let kind = t.kind(); if kind.is_trivia() { was_joint = false + } else if kind == SyntaxKind::IDENT { + let token_text = t.text(); + let contextual_kw = + SyntaxKind::from_contextual_keyword(token_text).unwrap_or(SyntaxKind::IDENT); + parser_input.push_ident(contextual_kw); } else { - if kind == SyntaxKind::IDENT { - let token_text = t.text(); - let contextual_kw = SyntaxKind::from_contextual_keyword(token_text) - .unwrap_or(SyntaxKind::IDENT); - parser_input.push_ident(contextual_kw); - } else { - if was_joint { + if was_joint { + parser_input.was_joint(); + } + parser_input.push(kind); + // Tag the token as joint if it is float with a fractional part + // we use this jointness to inform the parser about what token split + // event to emit when we encounter a float literal in a field access + if kind == SyntaxKind::FLOAT_NUMBER { + if !t.text().ends_with('.') { parser_input.was_joint(); - } - parser_input.push(kind); - // Tag the token as joint if it is float with a fractional part - // we use this jointness to inform the parser about what token split - // event to emit when we encounter a float literal in a field access - if kind == SyntaxKind::FLOAT_NUMBER { - if !t.text().ends_with('.') { - parser_input.was_joint(); - } else { - was_joint = false; - } } else { - was_joint = true; + was_joint = false; } + } else { + was_joint = true; } } } @@ -276,7 +275,7 @@ impl ast::TokenTree { let (green, errors) = builder.finish_raw(); - Parse { green, errors: Arc::new(errors), _ty: PhantomData } + Parse { green, errors: errors.into(), _ty: PhantomData } } } diff --git a/src/tools/rust-analyzer/crates/syntax/src/ptr.rs b/src/tools/rust-analyzer/crates/syntax/src/ptr.rs index 1d4a89201ae..71762996cd7 100644 --- a/src/tools/rust-analyzer/crates/syntax/src/ptr.rs +++ b/src/tools/rust-analyzer/crates/syntax/src/ptr.rs @@ -73,6 +73,10 @@ impl<N: AstNode> AstPtr<N> { Some(AstPtr { raw: self.raw, _ty: PhantomData }) } + pub fn kind(&self) -> parser::SyntaxKind { + self.raw.kind() + } + pub fn upcast<M: AstNode>(self) -> AstPtr<M> where N: Into<M>, @@ -84,6 +88,20 @@ impl<N: AstNode> AstPtr<N> { pub fn try_from_raw(raw: SyntaxNodePtr) -> Option<AstPtr<N>> { N::can_cast(raw.kind()).then_some(AstPtr { raw, _ty: PhantomData }) } + + pub fn wrap_left<R>(self) -> AstPtr<either::Either<N, R>> + where + either::Either<N, R>: AstNode, + { + AstPtr { raw: self.raw, _ty: PhantomData } + } + + pub fn wrap_right<L>(self) -> AstPtr<either::Either<L, N>> + where + either::Either<L, N>: AstNode, + { + AstPtr { raw: self.raw, _ty: PhantomData } + } } impl<N: AstNode> From<AstPtr<N>> for SyntaxNodePtr { diff --git a/src/tools/rust-analyzer/crates/syntax/src/tests.rs b/src/tools/rust-analyzer/crates/syntax/src/tests.rs index 168439053c2..3010d77d827 100644 --- a/src/tools/rust-analyzer/crates/syntax/src/tests.rs +++ b/src/tools/rust-analyzer/crates/syntax/src/tests.rs @@ -17,11 +17,11 @@ use crate::{ast, fuzz, AstNode, SourceFile, SyntaxError}; #[test] fn parse_smoke_test() { - let code = r##" + let code = r#" fn main() { println!("Hello, world!") } - "##; + "#; let parse = SourceFile::parse(code); // eprintln!("{:#?}", parse.syntax_node()); diff --git a/src/tools/rust-analyzer/crates/syntax/src/tests/sourcegen_ast.rs b/src/tools/rust-analyzer/crates/syntax/src/tests/sourcegen_ast.rs index dc6c96343d6..c2e921e4b6f 100644 --- a/src/tools/rust-analyzer/crates/syntax/src/tests/sourcegen_ast.rs +++ b/src/tools/rust-analyzer/crates/syntax/src/tests/sourcegen_ast.rs @@ -622,7 +622,7 @@ fn lower_enum(grammar: &Grammar, rule: &Rule) -> Option<Vec<String>> { } fn lower_rule(acc: &mut Vec<Field>, grammar: &Grammar, label: Option<&String>, rule: &Rule) { - if lower_seperated_list(acc, grammar, label, rule) { + if lower_separated_list(acc, grammar, label, rule) { return; } @@ -688,7 +688,7 @@ fn lower_rule(acc: &mut Vec<Field>, grammar: &Grammar, label: Option<&String>, r } // (T (',' T)* ','?) -fn lower_seperated_list( +fn lower_separated_list( acc: &mut Vec<Field>, grammar: &Grammar, label: Option<&String>, diff --git a/src/tools/rust-analyzer/crates/syntax/src/validation.rs b/src/tools/rust-analyzer/crates/syntax/src/validation.rs index e0ec6a242ff..2b1bbac08e5 100644 --- a/src/tools/rust-analyzer/crates/syntax/src/validation.rs +++ b/src/tools/rust-analyzer/crates/syntax/src/validation.rs @@ -5,7 +5,7 @@ mod block; use rowan::Direction; -use rustc_lexer::unescape::{self, unescape_literal, Mode}; +use rustc_dependencies::lexer::unescape::{self, unescape_literal, Mode}; use crate::{ algo, diff --git a/src/tools/rust-analyzer/crates/test-utils/src/minicore.rs b/src/tools/rust-analyzer/crates/test-utils/src/minicore.rs index 573f56b003a..cc41d87f5d9 100644 --- a/src/tools/rust-analyzer/crates/test-utils/src/minicore.rs +++ b/src/tools/rust-analyzer/crates/test-utils/src/minicore.rs @@ -489,7 +489,7 @@ pub mod ops { I: SliceIndex<[T]>, { type Output = I::Output; - fn index(&self, index: I) -> &I::Output { + fn index(&self, _index: I) -> &I::Output { loop {} } } @@ -497,7 +497,7 @@ pub mod ops { where I: SliceIndex<[T]>, { - fn index_mut(&mut self, index: I) -> &mut I::Output { + fn index_mut(&mut self, _index: I) -> &mut I::Output { loop {} } } @@ -507,7 +507,7 @@ pub mod ops { I: SliceIndex<[T]>, { type Output = I::Output; - fn index(&self, index: I) -> &I::Output { + fn index(&self, _index: I) -> &I::Output { loop {} } } @@ -515,7 +515,7 @@ pub mod ops { where I: SliceIndex<[T]>, { - fn index_mut(&mut self, index: I) -> &mut I::Output { + fn index_mut(&mut self, _index: I) -> &mut I::Output { loop {} } } @@ -863,17 +863,17 @@ pub mod fmt { pub struct DebugTuple; pub struct DebugStruct; impl Formatter<'_> { - pub fn debug_tuple(&mut self, name: &str) -> DebugTuple { + pub fn debug_tuple(&mut self, _name: &str) -> DebugTuple { DebugTuple } - pub fn debug_struct(&mut self, name: &str) -> DebugStruct { + pub fn debug_struct(&mut self, _name: &str) -> DebugStruct { DebugStruct } } impl DebugTuple { - pub fn field(&mut self, value: &dyn Debug) -> &mut Self { + pub fn field(&mut self, _value: &dyn Debug) -> &mut Self { self } @@ -883,7 +883,7 @@ pub mod fmt { } impl DebugStruct { - pub fn field(&mut self, name: &str, value: &dyn Debug) -> &mut Self { + pub fn field(&mut self, _name: &str, _value: &dyn Debug) -> &mut Self { self } @@ -996,7 +996,7 @@ pub mod fmt { ($($t:ty)*) => { $( impl const Debug for $t { - fn fmt(&self, f: &mut Formatter<'_>) -> Result { + fn fmt(&self, _f: &mut Formatter<'_>) -> Result { Ok(()) } } @@ -1012,7 +1012,7 @@ pub mod fmt { } impl<T: Debug> Debug for [T] { - fn fmt(&self, f: &mut Formatter<'_>) -> Result { + fn fmt(&self, _f: &mut Formatter<'_>) -> Result { Ok(()) } } @@ -1062,7 +1062,7 @@ pub mod option { } } - pub fn and<U>(self, optb: Option<U>) -> Option<U> { + pub fn and<U>(self, _optb: Option<U>) -> Option<U> { loop {} } pub fn unwrap_or(self, default: T) -> T { @@ -1080,25 +1080,25 @@ pub mod option { } // endregion:result // region:fn - pub fn and_then<U, F>(self, f: F) -> Option<U> + pub fn and_then<U, F>(self, _f: F) -> Option<U> where F: FnOnce(T) -> Option<U>, { loop {} } - pub fn unwrap_or_else<F>(self, f: F) -> T + pub fn unwrap_or_else<F>(self, _f: F) -> T where F: FnOnce() -> T, { loop {} } - pub fn map_or<U, F>(self, default: U, f: F) -> U + pub fn map_or<U, F>(self, _default: U, _f: F) -> U where F: FnOnce(T) -> U, { loop {} } - pub fn map_or_else<U, D, F>(self, default: D, f: F) -> U + pub fn map_or_else<U, D, F>(self, _default: D, _f: F) -> U where D: FnOnce() -> U, F: FnOnce(T) -> U, @@ -1129,7 +1129,7 @@ pub mod pin { pointer: P, } impl<P> Pin<P> { - pub fn new(pointer: P) -> Pin<P> { + pub fn new(_pointer: P) -> Pin<P> { loop {} } } @@ -1226,7 +1226,7 @@ pub mod iter { mod sources { mod repeat { - pub fn repeat<T>(elt: T) -> Repeat<T> { + pub fn repeat<T>(_elt: T) -> Repeat<T> { loop {} } @@ -1266,7 +1266,7 @@ pub mod iter { fn take(self, n: usize) -> crate::iter::Take<Self> { loop {} } - fn filter_map<B, F>(self, f: F) -> crate::iter::FilterMap<Self, F> + fn filter_map<B, F>(self, _f: F) -> crate::iter::FilterMap<Self, F> where Self: Sized, F: FnMut(Self::Item) -> Option<B>, @@ -1337,7 +1337,7 @@ mod panic { mod panicking { #[lang = "panic_fmt"] - pub const fn panic_fmt(fmt: crate::fmt::Arguments<'_>) -> ! { + pub const fn panic_fmt(_fmt: crate::fmt::Arguments<'_>) -> ! { loop {} } } diff --git a/src/tools/rust-analyzer/docs/dev/guide.md b/src/tools/rust-analyzer/docs/dev/guide.md index 56a68ef0437..a5f1811bf24 100644 --- a/src/tools/rust-analyzer/docs/dev/guide.md +++ b/src/tools/rust-analyzer/docs/dev/guide.md @@ -272,7 +272,7 @@ several times, with different sets of `cfg`s enabled. The IDE-specific task of mapping source code into a semantic model is inherently imprecise for this reason and gets handled by the [`source_binder`]. -[`source_binder`]: https://github.com/rust-lang/rust-analyzer/blob/guide-2019-01/crates/hir/src/source_binder.rs +[`source_binder`]: https://github.com/rust-lang/rust-analyzer/blob/guide-2019-01/crates/ra_hir/src/source_binder.rs The semantic interface is declared in the [`code_model_api`] module. Each entity is identified by an integer ID and has a bunch of methods which take a salsa database @@ -280,8 +280,8 @@ as an argument and returns other entities (which are also IDs). Internally, thes methods invoke various queries on the database to build the model on demand. Here's [the list of queries]. -[`code_model_api`]: https://github.com/rust-lang/rust-analyzer/blob/guide-2019-01/crates/hir/src/code_model_api.rs -[the list of queries]: https://github.com/rust-lang/rust-analyzer/blob/7e84440e25e19529e4ff8a66e521d1b06349c6ec/crates/hir/src/db.rs#L20-L106 +[`code_model_api`]: https://github.com/rust-lang/rust-analyzer/blob/guide-2019-01/crates/ra_hir/src/code_model_api.rs +[the list of queries]: https://github.com/rust-lang/rust-analyzer/blob/7e84440e25e19529e4ff8a66e521d1b06349c6ec/crates/ra_hir/src/db.rs#L20-L106 The first step of building the model is parsing the source code. diff --git a/src/tools/rust-analyzer/docs/user/generated_config.adoc b/src/tools/rust-analyzer/docs/user/generated_config.adoc index 71feed0f72c..7c76ae81bea 100644 --- a/src/tools/rust-analyzer/docs/user/generated_config.adoc +++ b/src/tools/rust-analyzer/docs/user/generated_config.adoc @@ -57,6 +57,12 @@ build procedural macros. The command is required to output json and should therefore include `--message-format=json` or a similar option. +If there are multiple linked projects/workspaces, this command is invoked for +each of them, with the working directory being the workspace root +(i.e., the folder containing the `Cargo.toml`). This can be overwritten +by changing `#rust-analyzer.cargo.buildScripts.invocationStrategy#` and +`#rust-analyzer.cargo.buildScripts.invocationLocation#`. + By default, a cargo invocation will be constructed for the configured targets and features, with the following base command line: @@ -206,9 +212,11 @@ If you're changing this because you're using some tool wrapping Cargo, you might also want to change `#rust-analyzer.cargo.buildScripts.overrideCommand#`. -If there are multiple linked projects, this command is invoked for -each of them, with the working directory being the project root -(i.e., the folder containing the `Cargo.toml`). +If there are multiple linked projects/workspaces, this command is invoked for +each of them, with the working directory being the workspace root +(i.e., the folder containing the `Cargo.toml`). This can be overwritten +by changing `#rust-analyzer.cargo.check.invocationStrategy#` and +`#rust-analyzer.cargo.check.invocationLocation#`. An example command would be: @@ -244,6 +252,11 @@ with `self` prefixed to them when inside a method. -- Whether to add parenthesis and argument snippets when completing function. -- +[[rust-analyzer.completion.fullFunctionSignatures.enable]]rust-analyzer.completion.fullFunctionSignatures.enable (default: `false`):: ++ +-- +Whether to show full function/method signatures in completion docs. +-- [[rust-analyzer.completion.limit]]rust-analyzer.completion.limit (default: `null`):: + -- @@ -744,6 +757,16 @@ Command to be executed instead of 'cargo' for runnables. Additional arguments to be passed to cargo for runnables such as tests or binaries. For example, it may be `--release`. -- +[[rust-analyzer.rust.analyzerTargetDir]]rust-analyzer.rust.analyzerTargetDir (default: `null`):: ++ +-- +Optional path to a rust-analyzer specific target directory. +This prevents rust-analyzer's `cargo check` from locking the `Cargo.lock` +at the expense of duplicating build artifacts. + +Set to `true` to use a subdirectory of the existing target directory or +set to a path relative to the workspace to use that path. +-- [[rust-analyzer.rustc.source]]rust-analyzer.rustc.source (default: `null`):: + -- diff --git a/src/tools/rust-analyzer/docs/user/manual.adoc b/src/tools/rust-analyzer/docs/user/manual.adoc index 5dafd1a4c8c..b605de4c7b8 100644 --- a/src/tools/rust-analyzer/docs/user/manual.adoc +++ b/src/tools/rust-analyzer/docs/user/manual.adoc @@ -237,7 +237,7 @@ To use `rust-analyzer`, you need to install and enable one of the two popular LS ==== Eglot -Eglot is the more minimalistic and lightweight LSP client for Emacs, integrates well with existing Emacs functionality and will be built into Emacs starting from release 29. +Eglot is the more minimalistic and lightweight LSP client for Emacs, integrates well with existing Emacs functionality and is built into Emacs starting from release 29. After installing Eglot, e.g. via `M-x package-install` (not needed from Emacs 29), you can enable it via the `M-x eglot` command or load it automatically in `rust-mode` via @@ -246,6 +246,15 @@ After installing Eglot, e.g. via `M-x package-install` (not needed from Emacs 29 (add-hook 'rust-mode-hook 'eglot-ensure) ---- +To enable clippy, you will need to configure the initialization options to pass the `check.command` setting. + +[source,emacs-lisp] +---- +(add-to-list 'eglot-server-programs + '((rust-ts-mode rust-mode) . + ("rust-analyzer" :initializationOptions (:check (:command "clippy"))))) +---- + For more detailed instructions and options see the https://joaotavora.github.io/eglot[Eglot manual] (also available from Emacs via `M-x info`) and the https://github.com/joaotavora/eglot/blob/master/README.md[Eglot readme]. @@ -555,6 +564,11 @@ There is a package named `ra_ap_rust_analyzer` available on https://crates.io/cr For more details, see https://github.com/rust-lang/rust-analyzer/blob/master/.github/workflows/publish.yml[the publish workflow]. +=== Zed + +https://zed.dev[Zed] has native `rust-analyzer` support. +If the LSP binary is not available, Zed can install it when opening a Rust file. + == Troubleshooting Start with looking at the rust-analyzer version. diff --git a/src/tools/rust-analyzer/editors/code/language-configuration.json b/src/tools/rust-analyzer/editors/code/language-configuration.json index 51f0e65f4fd..1c348b63f1a 100644 --- a/src/tools/rust-analyzer/editors/code/language-configuration.json +++ b/src/tools/rust-analyzer/editors/code/language-configuration.json @@ -18,7 +18,8 @@ { "open": "[", "close": "]" }, { "open": "(", "close": ")" }, { "open": "\"", "close": "\"", "notIn": ["string"] }, - { "open": "/*", "close": " */" } + { "open": "/*", "close": " */" }, + { "open": "`", "close": "`", "notIn": ["string"] } ], "autoCloseBefore": ";:.,=}])> \n\t", "surroundingPairs": [ @@ -27,7 +28,8 @@ ["(", ")"], ["<", ">"], ["\"", "\""], - ["'", "'"] + ["'", "'"], + ["`", "`"] ], "indentationRules": { "increaseIndentPattern": "^.*\\{[^}\"']*$|^.*\\([^\\)\"']*$", diff --git a/src/tools/rust-analyzer/editors/code/package.json b/src/tools/rust-analyzer/editors/code/package.json index 233e7bf44b1..c7b877b2897 100644 --- a/src/tools/rust-analyzer/editors/code/package.json +++ b/src/tools/rust-analyzer/editors/code/package.json @@ -17,6 +17,7 @@ "rust" ], "categories": [ + "Formatters", "Programming Languages" ], "capabilities": { @@ -249,6 +250,11 @@ "category": "rust-analyzer" }, { + "command": "rust-analyzer.openExternalDocs", + "title": "Open External Docs", + "category": "rust-analyzer" + }, + { "command": "rust-analyzer.openCargoToml", "title": "Open Cargo.toml", "category": "rust-analyzer" @@ -260,12 +266,12 @@ }, { "command": "rust-analyzer.moveItemUp", - "title": "Move item up", + "title": "Move Item Up", "category": "rust-analyzer" }, { "command": "rust-analyzer.moveItemDown", - "title": "Move item down", + "title": "Move Item Down", "category": "rust-analyzer" }, { @@ -371,6 +377,19 @@ ], "markdownDescription": "Problem matchers to use for `rust-analyzer.run` command, eg `[\"$rustc\", \"$rust-panic\"]`." }, + "rust-analyzer.statusBar.clickAction": { + "type": "string", + "enum": [ + "stopServer", + "openLogs" + ], + "enumDescriptions": [ + "Stop Server", + "Open Logs" + ], + "default": "openLogs", + "markdownDescription": "Action to run when clicking the extension status bar item." + }, "rust-analyzer.server.path": { "type": [ "null", @@ -467,7 +486,7 @@ "type": "boolean" }, "rust-analyzer.diagnostics.useRustcErrorCode": { - "markdownDescription": "Whether to use the rustc error code.", + "markdownDescription": "Whether to show diagnostics using the original rustc error code. If this is false, all rustc diagnostics will have the code 'rustc(Click for full compiler diagnostics)'", "default": false, "type": "boolean" }, @@ -557,7 +576,7 @@ ] }, "rust-analyzer.cargo.buildScripts.overrideCommand": { - "markdownDescription": "Override the command rust-analyzer uses to run build scripts and\nbuild procedural macros. The command is required to output json\nand should therefore include `--message-format=json` or a similar\noption.\n\nBy default, a cargo invocation will be constructed for the configured\ntargets and features, with the following base command line:\n\n```bash\ncargo check --quiet --workspace --message-format=json --all-targets\n```\n.", + "markdownDescription": "Override the command rust-analyzer uses to run build scripts and\nbuild procedural macros. The command is required to output json\nand should therefore include `--message-format=json` or a similar\noption.\n\nIf there are multiple linked projects/workspaces, this command is invoked for\neach of them, with the working directory being the workspace root\n(i.e., the folder containing the `Cargo.toml`). This can be overwritten\nby changing `#rust-analyzer.cargo.buildScripts.invocationStrategy#` and\n`#rust-analyzer.cargo.buildScripts.invocationLocation#`.\n\nBy default, a cargo invocation will be constructed for the configured\ntargets and features, with the following base command line:\n\n```bash\ncargo check --quiet --workspace --message-format=json --all-targets\n```\n.", "default": null, "type": [ "null", @@ -746,7 +765,7 @@ ] }, "rust-analyzer.check.overrideCommand": { - "markdownDescription": "Override the command rust-analyzer uses instead of `cargo check` for\ndiagnostics on save. The command is required to output json and\nshould therefore include `--message-format=json` or a similar option\n(if your client supports the `colorDiagnosticOutput` experimental\ncapability, you can use `--message-format=json-diagnostic-rendered-ansi`).\n\nIf you're changing this because you're using some tool wrapping\nCargo, you might also want to change\n`#rust-analyzer.cargo.buildScripts.overrideCommand#`.\n\nIf there are multiple linked projects, this command is invoked for\neach of them, with the working directory being the project root\n(i.e., the folder containing the `Cargo.toml`).\n\nAn example command would be:\n\n```bash\ncargo check --workspace --message-format=json --all-targets\n```\n.", + "markdownDescription": "Override the command rust-analyzer uses instead of `cargo check` for\ndiagnostics on save. The command is required to output json and\nshould therefore include `--message-format=json` or a similar option\n(if your client supports the `colorDiagnosticOutput` experimental\ncapability, you can use `--message-format=json-diagnostic-rendered-ansi`).\n\nIf you're changing this because you're using some tool wrapping\nCargo, you might also want to change\n`#rust-analyzer.cargo.buildScripts.overrideCommand#`.\n\nIf there are multiple linked projects/workspaces, this command is invoked for\neach of them, with the working directory being the workspace root\n(i.e., the folder containing the `Cargo.toml`). This can be overwritten\nby changing `#rust-analyzer.cargo.check.invocationStrategy#` and\n`#rust-analyzer.cargo.check.invocationLocation#`.\n\nAn example command would be:\n\n```bash\ncargo check --workspace --message-format=json --all-targets\n```\n.", "default": null, "type": [ "null", @@ -799,6 +818,11 @@ "Do no snippet completions for callables." ] }, + "rust-analyzer.completion.fullFunctionSignatures.enable": { + "markdownDescription": "Whether to show full function/method signatures in completion docs.", + "default": false, + "type": "boolean" + }, "rust-analyzer.completion.limit": { "markdownDescription": "Maximum number of completions to return. If `None`, the limit is infinite.", "default": null, @@ -1470,6 +1494,21 @@ "type": "string" } }, + "rust-analyzer.rust.analyzerTargetDir": { + "markdownDescription": "Optional path to a rust-analyzer specific target directory.\nThis prevents rust-analyzer's `cargo check` from locking the `Cargo.lock`\nat the expense of duplicating build artifacts.\n\nSet to `true` to use a subdirectory of the existing target directory or\nset to a path relative to the workspace to use that path.", + "default": null, + "anyOf": [ + { + "type": "null" + }, + { + "type": "boolean" + }, + { + "type": "string" + } + ] + }, "rust-analyzer.rustc.source": { "markdownDescription": "Path to the Cargo.toml of the rust compiler workspace, for usage in rustc_private\nprojects, or \"discover\" to try to automatically find it if the `rustc-dev` component\nis installed.\n\nAny project which uses rust-analyzer with the rustcPrivate\ncrates must set `[package.metadata.rust-analyzer] rustc_private=true` to use it.\n\nThis option does not take effect until rust-analyzer is restarted.", "default": null, @@ -1616,7 +1655,7 @@ "message": 3 }, { - "regexp": "^[\\s->=]*(.*?):(\\d*):(\\d*)\\s*$", + "regexp": "^[\\s->=]*(.*?):([1-9]\\d*):([1-9]\\d*)\\s*$", "file": 1, "line": 2, "column": 3 diff --git a/src/tools/rust-analyzer/editors/code/src/client.ts b/src/tools/rust-analyzer/editors/code/src/client.ts index ba8546763ec..96e888402ba 100644 --- a/src/tools/rust-analyzer/editors/code/src/client.ts +++ b/src/tools/rust-analyzer/editors/code/src/client.ts @@ -389,6 +389,7 @@ class ExperimentalFeatures implements lc.StaticFeature { serverStatusNotification: true, colorDiagnosticOutput: true, openServerLogs: true, + localDocs: true, commands: { commands: [ "rust-analyzer.runSingle", diff --git a/src/tools/rust-analyzer/editors/code/src/commands.ts b/src/tools/rust-analyzer/editors/code/src/commands.ts index 245557b1e88..7e24de664e9 100644 --- a/src/tools/rust-analyzer/editors/code/src/commands.ts +++ b/src/tools/rust-analyzer/editors/code/src/commands.ts @@ -21,6 +21,7 @@ import type { LanguageClient } from "vscode-languageclient/node"; import { LINKED_COMMANDS } from "./client"; import type { DependencyId } from "./dependencies_provider"; import { unwrapUndefinable } from "./undefinable"; +import { log } from "./util"; export * from "./ast_inspector"; export * from "./run"; @@ -947,10 +948,51 @@ export function openDocs(ctx: CtxInit): Cmd { const position = editor.selection.active; const textDocument = { uri: editor.document.uri.toString() }; - const doclink = await client.sendRequest(ra.openDocs, { position, textDocument }); + const docLinks = await client.sendRequest(ra.openDocs, { position, textDocument }); + log.debug(docLinks); - if (doclink != null) { - await vscode.commands.executeCommand("vscode.open", vscode.Uri.parse(doclink)); + let fileType = vscode.FileType.Unknown; + if (docLinks.local !== undefined) { + try { + fileType = (await vscode.workspace.fs.stat(vscode.Uri.parse(docLinks.local))).type; + } catch (e) { + log.debug("stat() threw error. Falling back to web version", e); + } + } + + let docLink = fileType & vscode.FileType.File ? docLinks.local : docLinks.web; + if (docLink) { + // instruct vscode to handle the vscode-remote link directly + if (docLink.startsWith("vscode-remote://")) { + docLink = docLink.replace("vscode-remote://", "vscode://vscode-remote/"); + } + const docUri = vscode.Uri.parse(docLink); + await vscode.env.openExternal(docUri); + } + }; +} + +export function openExternalDocs(ctx: CtxInit): Cmd { + return async () => { + const editor = vscode.window.activeTextEditor; + if (!editor) { + return; + } + const client = ctx.client; + + const position = editor.selection.active; + const textDocument = { uri: editor.document.uri.toString() }; + + const docLinks = await client.sendRequest(ra.openDocs, { position, textDocument }); + + let docLink = docLinks.web; + if (docLink) { + // instruct vscode to handle the vscode-remote link directly + if (docLink.startsWith("vscode-remote://")) { + docLink = docLink.replace("vscode-remote://", "vscode://vscode-remote/"); + } + const docUri = vscode.Uri.parse(docLink); + await vscode.env.openExternal(docUri); } }; } diff --git a/src/tools/rust-analyzer/editors/code/src/config.ts b/src/tools/rust-analyzer/editors/code/src/config.ts index 9821aee6f92..987d936943a 100644 --- a/src/tools/rust-analyzer/editors/code/src/config.ts +++ b/src/tools/rust-analyzer/editors/code/src/config.ts @@ -329,6 +329,10 @@ export class Config { get showDependenciesExplorer() { return this.get<boolean>("showDependenciesExplorer"); } + + get statusBarClickAction() { + return this.get<string>("statusBar.clickAction"); + } } // the optional `cb?` parameter is meant to be used to add additional diff --git a/src/tools/rust-analyzer/editors/code/src/ctx.ts b/src/tools/rust-analyzer/editors/code/src/ctx.ts index 904efa4d5eb..84d1ad98bd9 100644 --- a/src/tools/rust-analyzer/editors/code/src/ctx.ts +++ b/src/tools/rust-analyzer/editors/code/src/ctx.ts @@ -400,7 +400,11 @@ export class Ctx { statusBar.tooltip.appendText(status.message ?? "Ready"); statusBar.color = undefined; statusBar.backgroundColor = undefined; - statusBar.command = "rust-analyzer.openLogs"; + if (this.config.statusBarClickAction === "stopServer") { + statusBar.command = "rust-analyzer.stopServer"; + } else { + statusBar.command = "rust-analyzer.openLogs"; + } this.dependencies?.refresh(); break; case "warning": diff --git a/src/tools/rust-analyzer/editors/code/src/lsp_ext.ts b/src/tools/rust-analyzer/editors/code/src/lsp_ext.ts index bb7896973f1..f959a76639e 100644 --- a/src/tools/rust-analyzer/editors/code/src/lsp_ext.ts +++ b/src/tools/rust-analyzer/editors/code/src/lsp_ext.ts @@ -74,8 +74,8 @@ export interface FetchDependencyListParams {} export interface FetchDependencyListResult { crates: { - name: string | undefined; - version: string | undefined; + name?: string; + version?: string; path: string; }[]; } @@ -135,7 +135,11 @@ export const onEnter = new lc.RequestType<lc.TextDocumentPositionParams, lc.Text export const openCargoToml = new lc.RequestType<OpenCargoTomlParams, lc.Location, void>( "experimental/openCargoToml", ); -export const openDocs = new lc.RequestType<lc.TextDocumentPositionParams, string | void, void>( +export interface DocsUrls { + local?: string; + web?: string; +} +export const openDocs = new lc.RequestType<lc.TextDocumentPositionParams, DocsUrls, void>( "experimental/externalDocs", ); export const parentModule = new lc.RequestType< diff --git a/src/tools/rust-analyzer/editors/code/src/main.ts b/src/tools/rust-analyzer/editors/code/src/main.ts index ee5e5b1b80c..5de5aabc39f 100644 --- a/src/tools/rust-analyzer/editors/code/src/main.ts +++ b/src/tools/rust-analyzer/editors/code/src/main.ts @@ -170,6 +170,7 @@ function createCommands(): Record<string, CommandFactory> { debug: { enabled: commands.debug }, newDebugConfig: { enabled: commands.newDebugConfig }, openDocs: { enabled: commands.openDocs }, + openExternalDocs: { enabled: commands.openExternalDocs }, openCargoToml: { enabled: commands.openCargoToml }, peekTests: { enabled: commands.peekTests }, moveItemUp: { enabled: commands.moveItemUp }, diff --git a/src/tools/rust-analyzer/rust-bors.toml b/src/tools/rust-analyzer/rust-bors.toml new file mode 100644 index 00000000000..c31ba66c50f --- /dev/null +++ b/src/tools/rust-analyzer/rust-bors.toml @@ -0,0 +1 @@ +timeout = 3600 diff --git a/src/tools/rust-analyzer/triagebot.toml b/src/tools/rust-analyzer/triagebot.toml index f0cd3539975..95eed3ee172 100644 --- a/src/tools/rust-analyzer/triagebot.toml +++ b/src/tools/rust-analyzer/triagebot.toml @@ -11,5 +11,10 @@ allow-unauthenticated = [ new_pr = true [no-merges] -exclude_labels = ["sync"] +exclude_titles = [ # exclude syncs from subtree in rust-lang/rust + "Sync from downstream", + "sync from downstream", + "Sync from rust", + "sync from rust", +] labels = ["has-merge-commits", "S-waiting-on-author"] diff --git a/src/tools/tidy/src/deps.rs b/src/tools/tidy/src/deps.rs index f88f9165596..10215520227 100644 --- a/src/tools/tidy/src/deps.rs +++ b/src/tools/tidy/src/deps.rs @@ -128,7 +128,6 @@ const EXCEPTIONS_CARGO: ExceptionList = &[ const EXCEPTIONS_RUST_ANALYZER: ExceptionList = &[ // tidy-alphabetical-start - ("anymap", "BlueOak-1.0.0 OR MIT OR Apache-2.0"), // BlueOak is not acceptable, but we use it under MIT OR Apache-2 .0 ("dissimilar", "Apache-2.0"), ("instant", "BSD-3-Clause"), ("notify", "CC0-1.0"), diff --git a/src/tools/tidy/src/ui_tests.rs b/src/tools/tidy/src/ui_tests.rs index 7e24793adee..dfa386b49de 100644 --- a/src/tools/tidy/src/ui_tests.rs +++ b/src/tools/tidy/src/ui_tests.rs @@ -10,7 +10,7 @@ use std::path::{Path, PathBuf}; const ENTRY_LIMIT: usize = 900; // FIXME: The following limits should be reduced eventually. -const ISSUES_ENTRY_LIMIT: usize = 1854; +const ISSUES_ENTRY_LIMIT: usize = 1852; const ROOT_ENTRY_LIMIT: usize = 867; const EXPECTED_TEST_FILE_EXTENSIONS: &[&str] = &[ diff --git a/src/version b/src/version index 7c7053aa238..32a6ce3c719 100644 --- a/src/version +++ b/src/version @@ -1 +1 @@ -1.75.0 +1.76.0 diff --git a/tests/codegen/llvm_module_flags.rs b/tests/codegen/llvm_module_flags.rs new file mode 100644 index 00000000000..acc035086de --- /dev/null +++ b/tests/codegen/llvm_module_flags.rs @@ -0,0 +1,7 @@ +// Test for -Z llvm_module_flags +// compile-flags: -Z llvm_module_flag=foo:u32:123:error -Z llvm_module_flag=bar:u32:42:max + +fn main() {} + +// CHECK: !{i32 1, !"foo", i32 123} +// CHECK: !{i32 7, !"bar", i32 42} diff --git a/tests/codegen/unchecked_shifts.rs b/tests/codegen/unchecked_shifts.rs index aca9bec77df..eded894c6d0 100644 --- a/tests/codegen/unchecked_shifts.rs +++ b/tests/codegen/unchecked_shifts.rs @@ -31,7 +31,7 @@ pub unsafe fn unchecked_shl_unsigned_smaller(a: u16, b: u32) -> u16 { #[no_mangle] pub unsafe fn unchecked_shl_unsigned_bigger(a: u64, b: u32) -> u64 { // CHECK-NOT: assume - // CHECK: %[[EXT:.+]] = zext i32 %b to i64 + // CHECK: %[[EXT:.+]] = zext{{( nneg)?}} i32 %b to i64 // CHECK: shl i64 %a, %[[EXT]] a.unchecked_shl(b) } @@ -63,7 +63,7 @@ pub unsafe fn unchecked_shr_signed_smaller(a: i16, b: u32) -> i16 { #[no_mangle] pub unsafe fn unchecked_shr_signed_bigger(a: i64, b: u32) -> i64 { // CHECK-NOT: assume - // CHECK: %[[EXT:.+]] = zext i32 %b to i64 + // CHECK: %[[EXT:.+]] = zext{{( nneg)?}} i32 %b to i64 // CHECK: ashr i64 %a, %[[EXT]] a.unchecked_shr(b) } diff --git a/tests/coverage/auxiliary/macro_name_span_helper.rs b/tests/coverage/auxiliary/macro_name_span_helper.rs new file mode 100644 index 00000000000..6797c081d93 --- /dev/null +++ b/tests/coverage/auxiliary/macro_name_span_helper.rs @@ -0,0 +1,10 @@ +// edition: 2021 + +#[macro_export] +macro_rules! macro_that_defines_a_function { + (fn $name:ident () $body:tt) => { + fn $name () -> () $body + } +} + +// Non-executable comment. diff --git a/tests/coverage/macro_name_span.cov-map b/tests/coverage/macro_name_span.cov-map new file mode 100644 index 00000000000..b84628fc788 --- /dev/null +++ b/tests/coverage/macro_name_span.cov-map @@ -0,0 +1,16 @@ +Function name: macro_name_span::affected_function +Raw bytes (9): 0x[01, 01, 00, 01, 01, 06, 1b, 00, 20] +Number of files: 1 +- file 0 => global file 1 +Number of expressions: 0 +Number of file 0 mappings: 1 +- Code(Counter(0)) at (prev + 6, 27) to (start + 0, 32) + +Function name: macro_name_span::main +Raw bytes (9): 0x[01, 02, 00, 01, 01, 0b, 01, 02, 02] +Number of files: 1 +- file 0 => global file 2 +Number of expressions: 0 +Number of file 0 mappings: 1 +- Code(Counter(0)) at (prev + 11, 1) to (start + 2, 2) + diff --git a/tests/coverage/macro_name_span.coverage b/tests/coverage/macro_name_span.coverage new file mode 100644 index 00000000000..cadf7024657 --- /dev/null +++ b/tests/coverage/macro_name_span.coverage @@ -0,0 +1,39 @@ +$DIR/auxiliary/macro_name_span_helper.rs: + LL| |// edition: 2021 + LL| | + LL| |#[macro_export] + LL| |macro_rules! macro_that_defines_a_function { + LL| | (fn $name:ident () $body:tt) => { + LL| 1| fn $name () -> () $body + LL| | } + LL| |} + LL| | + LL| |// Non-executable comment. + +$DIR/macro_name_span.rs: + LL| |// edition: 2021 + LL| | + LL| |// Regression test for <https://github.com/rust-lang/rust/issues/117788>. + LL| |// Under some circumstances, the heuristics that detect macro name spans can + LL| |// get confused and produce incorrect spans beyond the bounds of the span + LL| |// being processed. + LL| | + LL| |// aux-build: macro_name_span_helper.rs + LL| |extern crate macro_name_span_helper; + LL| | + LL| 1|fn main() { + LL| 1| affected_function(); + LL| 1|} + LL| | + LL| |macro_rules! macro_with_an_unreasonably_and_egregiously_long_name { + LL| | () => { + LL| | println!("hello"); + LL| | }; + LL| |} + LL| | + LL| |macro_name_span_helper::macro_that_defines_a_function! { + LL| | fn affected_function() { + LL| | macro_with_an_unreasonably_and_egregiously_long_name!(); + LL| | } + LL| |} + diff --git a/tests/coverage/macro_name_span.rs b/tests/coverage/macro_name_span.rs new file mode 100644 index 00000000000..5d15977c498 --- /dev/null +++ b/tests/coverage/macro_name_span.rs @@ -0,0 +1,25 @@ +// edition: 2021 + +// Regression test for <https://github.com/rust-lang/rust/issues/117788>. +// Under some circumstances, the heuristics that detect macro name spans can +// get confused and produce incorrect spans beyond the bounds of the span +// being processed. + +// aux-build: macro_name_span_helper.rs +extern crate macro_name_span_helper; + +fn main() { + affected_function(); +} + +macro_rules! macro_with_an_unreasonably_and_egregiously_long_name { + () => { + println!("hello"); + }; +} + +macro_name_span_helper::macro_that_defines_a_function! { + fn affected_function() { + macro_with_an_unreasonably_and_egregiously_long_name!(); + } +} diff --git a/tests/mir-opt/building/async_await.b-{closure#0}.coroutine_resume.0.mir b/tests/mir-opt/building/async_await.b-{closure#0}.coroutine_resume.0.mir index 396e4a378f6..111dd8e97f9 100644 --- a/tests/mir-opt/building/async_await.b-{closure#0}.coroutine_resume.0.mir +++ b/tests/mir-opt/building/async_await.b-{closure#0}.coroutine_resume.0.mir @@ -14,7 +14,7 @@ Static, ), source_info: SourceInfo { - span: $DIR/async_await.rs:16:9: 16:14 (#8), + span: $DIR/async_await.rs:16:5: 16:14 (#9), scope: scope[0], }, ignore_for_traits: false, @@ -32,7 +32,7 @@ Static, ), source_info: SourceInfo { - span: $DIR/async_await.rs:17:9: 17:14 (#10), + span: $DIR/async_await.rs:17:5: 17:14 (#11), scope: scope[0], }, ignore_for_traits: false, diff --git a/tests/mir-opt/building/custom/terminators.rs b/tests/mir-opt/building/custom/terminators.rs index 9e442e0f98a..a83a6c07461 100644 --- a/tests/mir-opt/building/custom/terminators.rs +++ b/tests/mir-opt/building/custom/terminators.rs @@ -13,7 +13,7 @@ fn ident<T>(t: T) -> T { fn direct_call(x: i32) -> i32 { mir!( { - Call(RET = ident(x), retblock) + Call(RET = ident(x), retblock, UnwindContinue()) } retblock = { @@ -27,7 +27,7 @@ fn direct_call(x: i32) -> i32 { fn indirect_call(x: i32, f: fn(i32) -> i32) -> i32 { mir!( { - Call(RET = f(x), retblock) + Call(RET = f(x), retblock, UnwindContinue()) } retblock = { @@ -49,7 +49,7 @@ impl<'a> Drop for WriteOnDrop<'a> { fn drop_first<'a>(a: WriteOnDrop<'a>, b: WriteOnDrop<'a>) { mir!( { - Drop(a, retblock) + Drop(a, retblock, UnwindContinue()) } retblock = { @@ -64,7 +64,7 @@ fn drop_first<'a>(a: WriteOnDrop<'a>, b: WriteOnDrop<'a>) { fn drop_second<'a>(a: WriteOnDrop<'a>, b: WriteOnDrop<'a>) { mir!( { - Drop(b, retblock) + Drop(b, retblock, UnwindContinue()) } retblock = { diff --git a/tests/mir-opt/building/custom/unwind_action.rs b/tests/mir-opt/building/custom/unwind_action.rs new file mode 100644 index 00000000000..e3c4ffac358 --- /dev/null +++ b/tests/mir-opt/building/custom/unwind_action.rs @@ -0,0 +1,68 @@ +// compile-flags: --crate-type=lib +// edition:2021 +// needs-unwind +#![feature(custom_mir, core_intrinsics)] +use core::intrinsics::mir::*; + +// CHECK-LABEL: fn a() +// CHECK: bb0: { +// CHECK-NEXT: a() -> [return: bb1, unwind unreachable]; +#[custom_mir(dialect = "runtime", phase = "optimized")] +pub fn a() { + mir!( + { + Call(RET = a(), bb1, UnwindUnreachable()) + } + bb1 = { + Return() + } + ) +} + +// CHECK-LABEL: fn b() +// CHECK: bb0: { +// CHECK-NEXT: b() -> [return: bb1, unwind continue]; +#[custom_mir(dialect = "runtime", phase = "optimized")] +pub fn b() { + mir!( + { + Call(RET = b(), bb1, UnwindContinue()) + } + bb1 = { + Return() + } + ) +} + +// CHECK-LABEL: fn c() +// CHECK: bb0: { +// CHECK-NEXT: c() -> [return: bb1, unwind terminate(abi)]; +#[custom_mir(dialect = "runtime", phase = "optimized")] +pub fn c() { + mir!( + { + Call(RET = c(), bb1, UnwindTerminate(ReasonAbi)) + } + bb1 = { + Return() + } + ) +} + +// CHECK-LABEL: fn d() +// CHECK: bb0: { +// CHECK-NEXT: d() -> [return: bb1, unwind: bb2]; +#[custom_mir(dialect = "runtime", phase = "optimized")] +pub fn d() { + mir!( + { + Call(RET = d(), bb1, UnwindCleanup(bb2)) + } + bb1 = { + Return() + } + bb2 (cleanup) = { + UnwindResume() + } + ) +} diff --git a/tests/mir-opt/building/custom/unwind_terminate.rs b/tests/mir-opt/building/custom/unwind_terminate.rs new file mode 100644 index 00000000000..efdf2ddb1d0 --- /dev/null +++ b/tests/mir-opt/building/custom/unwind_terminate.rs @@ -0,0 +1,34 @@ +// compile-flags: --crate-type=lib +// edition:2021 +#![feature(custom_mir, core_intrinsics)] +use core::intrinsics::mir::*; + +// CHECK-LABEL: fn f() +// CHECK: bb1 (cleanup): { +// CHECK-NEXT: terminate(abi); +#[custom_mir(dialect = "runtime", phase = "optimized")] +pub fn f() { + mir!( + { + Return() + } + bb1(cleanup) = { + UnwindTerminate(ReasonAbi) + } + ) +} + +// CHECK-LABEL: fn g() +// CHECK: bb1 (cleanup): { +// CHECK-NEXT: terminate(cleanup); +#[custom_mir(dialect = "runtime", phase = "optimized")] +pub fn g() { + mir!( + { + Return() + } + bb1(cleanup) = { + UnwindTerminate(ReasonInCleanup) + } + ) +} diff --git a/tests/mir-opt/copy-prop/borrowed_local.rs b/tests/mir-opt/copy-prop/borrowed_local.rs index c6b8ad3571f..a44e65164af 100644 --- a/tests/mir-opt/copy-prop/borrowed_local.rs +++ b/tests/mir-opt/copy-prop/borrowed_local.rs @@ -22,11 +22,11 @@ fn f() -> bool { let b = a; // We cannot propagate the place `a`. let r2 = &b; - Call(RET = cmp_ref(r1, r2), next) + Call(RET = cmp_ref(r1, r2), next, UnwindContinue()) } next = { // But we can propagate the value `a`. - Call(RET = opaque(b), ret) + Call(RET = opaque(b), ret, UnwindContinue()) } ret = { Return() diff --git a/tests/mir-opt/copy-prop/calls.rs b/tests/mir-opt/copy-prop/calls.rs index 2970f5f0b8d..bc6760707cc 100644 --- a/tests/mir-opt/copy-prop/calls.rs +++ b/tests/mir-opt/copy-prop/calls.rs @@ -26,7 +26,7 @@ fn multiple_edges(t: bool) -> u8 { match t { true => bbt, _ => ret } } bbt = { - Call(x = dummy(13), ret) + Call(x = dummy(13), ret, UnwindContinue()) } ret = { // `x` is not assigned on the `bb0 -> ret` edge, diff --git a/tests/mir-opt/copy-prop/custom_move_arg.rs b/tests/mir-opt/copy-prop/custom_move_arg.rs index 2077874ee9a..8593d9fa9ab 100644 --- a/tests/mir-opt/copy-prop/custom_move_arg.rs +++ b/tests/mir-opt/copy-prop/custom_move_arg.rs @@ -14,11 +14,11 @@ struct NotCopy(bool); fn f(_1: NotCopy) { mir!({ let _2 = _1; - Call(RET = opaque(Move(_1)), bb1) + Call(RET = opaque(Move(_1)), bb1, UnwindContinue()) } bb1 = { let _3 = Move(_2); - Call(RET = opaque(_3), bb2) + Call(RET = opaque(_3), bb2, UnwindContinue()) } bb2 = { Return() diff --git a/tests/mir-opt/copy-prop/move_projection.rs b/tests/mir-opt/copy-prop/move_projection.rs index 8629d535bcf..438a90dddd0 100644 --- a/tests/mir-opt/copy-prop/move_projection.rs +++ b/tests/mir-opt/copy-prop/move_projection.rs @@ -18,10 +18,10 @@ fn f(a: Foo) -> bool { let b = a; // This is a move out of a copy, so must become a copy of `a.0`. let c = Move(b.0); - Call(RET = opaque(Move(a)), bb1) + Call(RET = opaque(Move(a)), bb1, UnwindContinue()) } bb1 = { - Call(RET = opaque(Move(c)), ret) + Call(RET = opaque(Move(c)), ret, UnwindContinue()) } ret = { Return() diff --git a/tests/mir-opt/dead-store-elimination/call_arg_copy.rs b/tests/mir-opt/dead-store-elimination/call_arg_copy.rs index dcd15fb2b09..b2eb64756f9 100644 --- a/tests/mir-opt/dead-store-elimination/call_arg_copy.rs +++ b/tests/mir-opt/dead-store-elimination/call_arg_copy.rs @@ -28,7 +28,7 @@ struct Packed { fn move_packed(packed: Packed) { mir!( { - Call(RET = use_both(0, packed.y), ret) + Call(RET = use_both(0, packed.y), ret, UnwindContinue()) } ret = { Return() diff --git a/tests/mir-opt/dead-store-elimination/cycle.rs b/tests/mir-opt/dead-store-elimination/cycle.rs index 8896f5ff345..c9ad06a9da2 100644 --- a/tests/mir-opt/dead-store-elimination/cycle.rs +++ b/tests/mir-opt/dead-store-elimination/cycle.rs @@ -20,7 +20,7 @@ fn cycle(mut x: i32, mut y: i32, mut z: i32) { mir!( let condition: bool; { - Call(condition = cond(), bb1) + Call(condition = cond(), bb1, UnwindContinue()) } bb1 = { match condition { true => bb2, _ => ret } @@ -30,7 +30,7 @@ fn cycle(mut x: i32, mut y: i32, mut z: i32) { z = y; y = x; x = temp; - Call(condition = cond(), bb1) + Call(condition = cond(), bb1, UnwindContinue()) } ret = { Return() diff --git a/tests/mir-opt/gvn.rs b/tests/mir-opt/gvn.rs index 10a66ced026..6e082acdbd3 100644 --- a/tests/mir-opt/gvn.rs +++ b/tests/mir-opt/gvn.rs @@ -529,31 +529,31 @@ fn duplicate_slice() -> (bool, bool) { // CHECK: [[a:_.*]] = (const "a",); // CHECK: [[au:_.*]] = ([[a]].0: &str) as u128 (Transmute); let a = ("a",); - Call(au = transmute::<_, u128>(a.0), bb1) + Call(au = transmute::<_, u128>(a.0), bb1, UnwindContinue()) } bb1 = { // CHECK: [[c:_.*]] = identity::<&str>(([[a]].0: &str)) - Call(c = identity(a.0), bb2) + Call(c = identity(a.0), bb2, UnwindContinue()) } bb2 = { // CHECK: [[cu:_.*]] = [[c]] as u128 (Transmute); - Call(cu = transmute::<_, u128>(c), bb3) + Call(cu = transmute::<_, u128>(c), bb3, UnwindContinue()) } bb3 = { // This slice is different from `a.0`. Hence `bu` is not `au`. // CHECK: [[b:_.*]] = const "a"; // CHECK: [[bu:_.*]] = [[b]] as u128 (Transmute); let b = "a"; - Call(bu = transmute::<_, u128>(b), bb4) + Call(bu = transmute::<_, u128>(b), bb4, UnwindContinue()) } bb4 = { // This returns a copy of `b`, which is not `a`. // CHECK: [[d:_.*]] = identity::<&str>([[b]]) - Call(d = identity(b), bb5) + Call(d = identity(b), bb5, UnwindContinue()) } bb5 = { // CHECK: [[du:_.*]] = [[d]] as u128 (Transmute); - Call(du = transmute::<_, u128>(d), bb6) + Call(du = transmute::<_, u128>(d), bb6, UnwindContinue()) } bb6 = { // `direct` must not fold to `true`, as `indirect` will not. diff --git a/tests/mir-opt/reference_prop.rs b/tests/mir-opt/reference_prop.rs index 36134e019ad..1b9c8fe15c2 100644 --- a/tests/mir-opt/reference_prop.rs +++ b/tests/mir-opt/reference_prop.rs @@ -695,7 +695,7 @@ fn multiple_storage() { // As there are multiple `StorageLive` statements for `x`, we cannot know if this `z`'s // pointer address is the address of `x`, so do nothing. let y = *z; - Call(RET = opaque(y), retblock) + Call(RET = opaque(y), retblock, UnwindContinue()) } retblock = { @@ -723,7 +723,7 @@ fn dominate_storage() { } bb1 = { let c = *r; - Call(RET = opaque(c), bb2) + Call(RET = opaque(c), bb2, UnwindContinue()) } bb2 = { StorageDead(x); @@ -759,18 +759,18 @@ fn maybe_dead(m: bool) { bb1 = { StorageDead(x); StorageDead(y); - Call(RET = opaque(u), bb2) + Call(RET = opaque(u), bb2, UnwindContinue()) } bb2 = { // As `x` may be `StorageDead`, `a` may be dangling, so we do nothing. let z = *a; - Call(RET = opaque(z), bb3) + Call(RET = opaque(z), bb3, UnwindContinue()) } bb3 = { // As `y` may be `StorageDead`, `b` may be dangling, so we do nothing. // This implies that we also do not substitute `b` in `bb0`. let t = *b; - Call(RET = opaque(t), retblock) + Call(RET = opaque(t), retblock, UnwindContinue()) } retblock = { Return() diff --git a/tests/ui-fulldeps/stable-mir/projections.rs b/tests/ui-fulldeps/stable-mir/projections.rs new file mode 100644 index 00000000000..9c649a2effc --- /dev/null +++ b/tests/ui-fulldeps/stable-mir/projections.rs @@ -0,0 +1,173 @@ +// run-pass +// Tests the Stable MIR projections API + +// ignore-stage1 +// ignore-cross-compile +// ignore-remote +// ignore-windows-gnu mingw has troubles with linking https://github.com/rust-lang/rust/pull/116837 +// edition: 2021 + +#![feature(rustc_private)] +#![feature(assert_matches)] +#![feature(control_flow_enum)] + +extern crate rustc_hir; +extern crate rustc_middle; +#[macro_use] +extern crate rustc_smir; +extern crate rustc_driver; +extern crate rustc_interface; +extern crate stable_mir; + +use rustc_hir::def::DefKind; +use rustc_middle::ty::TyCtxt; +use rustc_smir::rustc_internal; +use stable_mir::mir::{ProjectionElem, Rvalue, StatementKind}; +use stable_mir::ty::{RigidTy, TyKind}; +use std::assert_matches::assert_matches; +use std::io::Write; +use std::ops::ControlFlow; + +const CRATE_NAME: &str = "input"; + +/// Tests projections within Place objects +fn test_place_projections(_tcx: TyCtxt<'_>) -> ControlFlow<()> { + let items = stable_mir::all_local_items(); + let body = get_item(&items, (DefKind::Fn, "projections")).unwrap().body(); + assert_eq!(body.blocks.len(), 4); + // The first statement assigns `&s.c` to a local. The projections include a deref for `s`, since + // `s` is passed as a reference argument, and a field access for field `c`. + match &body.blocks[0].statements[0].kind { + StatementKind::Assign( + stable_mir::mir::Place { local: _, projection: local_proj }, + Rvalue::Ref(_, _, stable_mir::mir::Place { local: _, projection: r_proj }), + ) => { + // We can't match on vecs, only on slices. Comparing statements for equality wouldn't be + // any easier since we'd then have to add in the expected local and region values + // instead of matching on wildcards. + assert!(local_proj.is_empty()); + match &r_proj[..] { + // Similarly we can't match against a type, only against its kind. + [ProjectionElem::Deref, ProjectionElem::Field(2, ty)] => assert_matches!( + ty.kind(), + TyKind::RigidTy(RigidTy::Uint(stable_mir::ty::UintTy::U8)) + ), + other => panic!( + "Unable to match against expected rvalue projection. Expected the projection \ + for `s.c`, which is a Deref and u8 Field. Got: {:?}", + other + ), + }; + } + other => panic!( + "Unable to match against expected Assign statement with a Ref rvalue. Expected the \ + statement to assign `&s.c` to a local. Got: {:?}", + other + ), + }; + // This statement assigns `slice[1]` to a local. The projections include a deref for `slice`, + // since `slice` is a reference, and an index. + match &body.blocks[2].statements[0].kind { + StatementKind::Assign( + stable_mir::mir::Place { local: _, projection: local_proj }, + Rvalue::Use(stable_mir::mir::Operand::Copy(stable_mir::mir::Place { + local: _, + projection: r_proj, + })), + ) => { + // We can't match on vecs, only on slices. Comparing for equality wouldn't be any easier + // since we'd then have to add in the expected local values instead of matching on + // wildcards. + assert!(local_proj.is_empty()); + assert_matches!(r_proj[..], [ProjectionElem::Deref, ProjectionElem::Index(_)]); + } + other => panic!( + "Unable to match against expected Assign statement with a Use rvalue. Expected the \ + statement to assign `slice[1]` to a local. Got: {:?}", + other + ), + }; + // The first terminator gets a slice of an array via the Index operation. Specifically it + // performs `&vals[1..3]`. There are no projections in this case, the arguments are just locals. + match &body.blocks[0].terminator.kind { + stable_mir::mir::TerminatorKind::Call { args, .. } => + // We can't match on vecs, only on slices. Comparing for equality wouldn't be any easier + // since we'd then have to add in the expected local values instead of matching on + // wildcards. + { + match &args[..] { + [ + stable_mir::mir::Operand::Move(stable_mir::mir::Place { + local: _, + projection: arg1_proj, + }), + stable_mir::mir::Operand::Move(stable_mir::mir::Place { + local: _, + projection: arg2_proj, + }), + ] => { + assert!(arg1_proj.is_empty()); + assert!(arg2_proj.is_empty()); + } + other => { + panic!( + "Unable to match against expected arguments to Index call. Expected two \ + move operands. Got: {:?}", + other + ) + } + } + } + other => panic!( + "Unable to match against expected Call terminator. Expected a terminator that calls \ + the Index operation. Got: {:?}", + other + ), + }; + + ControlFlow::Continue(()) +} + +// Use internal API to find a function in a crate. +fn get_item<'a>( + items: &'a stable_mir::CrateItems, + item: (DefKind, &str), +) -> Option<&'a stable_mir::CrateItem> { + items.iter().find(|crate_item| { + crate_item.kind().to_string() == format!("{:?}", item.0) && crate_item.name() == item.1 + }) +} + +/// This test will generate and analyze a dummy crate using the stable mir. +/// For that, it will first write the dummy crate into a file. +/// Then it will create a `StableMir` using custom arguments and then +/// it will run the compiler. +fn main() { + let path = "input.rs"; + generate_input(&path).unwrap(); + let args = vec![ + "rustc".to_string(), + "--crate-type=lib".to_string(), + "--crate-name".to_string(), + CRATE_NAME.to_string(), + path.to_string(), + ]; + run!(args, tcx, test_place_projections(tcx)).unwrap(); +} + +fn generate_input(path: &str) -> std::io::Result<()> { + let mut file = std::fs::File::create(path)?; + write!( + file, + r#" + pub struct Struct1 {{ _a: u8, _b: u16, c: u8 }} + + pub fn projections(s: &Struct1) -> u8 {{ + let v = &s.c; + let vals = [1, 2, 3, 4]; + let slice = &vals[1..3]; + v + slice[1] + }}"# + )?; + Ok(()) +} diff --git a/tests/ui/auto-traits/issue-117789.rs b/tests/ui/auto-traits/issue-117789.rs new file mode 100644 index 00000000000..0c30931a1b5 --- /dev/null +++ b/tests/ui/auto-traits/issue-117789.rs @@ -0,0 +1,7 @@ +#![deny(suspicious_auto_trait_impls)] + +auto trait Trait<P> {} //~ ERROR auto traits cannot have generic parameters +//~^ ERROR auto traits are experimental and possibly buggy +impl<P> Trait<P> for () {} + +fn main() {} diff --git a/tests/ui/auto-traits/issue-117789.stderr b/tests/ui/auto-traits/issue-117789.stderr new file mode 100644 index 00000000000..9a3a7efed3e --- /dev/null +++ b/tests/ui/auto-traits/issue-117789.stderr @@ -0,0 +1,21 @@ +error[E0567]: auto traits cannot have generic parameters + --> $DIR/issue-117789.rs:3:17 + | +LL | auto trait Trait<P> {} + | -----^^^ help: remove the parameters + | | + | auto trait cannot have generic parameters + +error[E0658]: auto traits are experimental and possibly buggy + --> $DIR/issue-117789.rs:3:1 + | +LL | auto trait Trait<P> {} + | ^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #13231 <https://github.com/rust-lang/rust/issues/13231> for more information + = help: add `#![feature(auto_traits)]` to the crate attributes to enable + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0567, E0658. +For more information about an error, try `rustc --explain E0567`. diff --git a/tests/ui/binop/binary-op-suggest-deref.fixed b/tests/ui/binop/binary-op-suggest-deref.fixed new file mode 100644 index 00000000000..1ff3599137b --- /dev/null +++ b/tests/ui/binop/binary-op-suggest-deref.fixed @@ -0,0 +1,8 @@ +// Issue #52544 +// run-rustfix + +fn main() { + let i: &i64 = &1; + if *i < 0 {} + //~^ ERROR mismatched types [E0308] +} diff --git a/tests/ui/binop/binary-op-suggest-deref.rs b/tests/ui/binop/binary-op-suggest-deref.rs new file mode 100644 index 00000000000..12505a9ac27 --- /dev/null +++ b/tests/ui/binop/binary-op-suggest-deref.rs @@ -0,0 +1,8 @@ +// Issue #52544 +// run-rustfix + +fn main() { + let i: &i64 = &1; + if i < 0 {} + //~^ ERROR mismatched types [E0308] +} diff --git a/tests/ui/binop/binary-op-suggest-deref.stderr b/tests/ui/binop/binary-op-suggest-deref.stderr new file mode 100644 index 00000000000..1b7e45c7724 --- /dev/null +++ b/tests/ui/binop/binary-op-suggest-deref.stderr @@ -0,0 +1,14 @@ +error[E0308]: mismatched types + --> $DIR/binary-op-suggest-deref.rs:6:12 + | +LL | if i < 0 {} + | ^ expected `&i64`, found integer + | +help: consider dereferencing the borrow + | +LL | if *i < 0 {} + | + + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/coroutine/issue-57084.rs b/tests/ui/coroutine/issue-57084.rs index 95bed5b151e..e0aeae66735 100644 --- a/tests/ui/coroutine/issue-57084.rs +++ b/tests/ui/coroutine/issue-57084.rs @@ -1,5 +1,5 @@ // This issue reproduces an ICE on compile (E.g. fails on 2018-12-19 nightly). -// "cannot relate bound region: ReLateBound(DebruijnIndex(1), BrAnon(1)) <= '?1" +// "cannot relate bound region: ReBound(DebruijnIndex(1), BrAnon(1)) <= '?1" // run-pass // edition:2018 #![feature(coroutines,coroutine_trait)] diff --git a/tests/ui/generic-const-items/const-trait-impl.rs b/tests/ui/generic-const-items/const-trait-impl.rs index d30f7af170d..43cdf818c46 100644 --- a/tests/ui/generic-const-items/const-trait-impl.rs +++ b/tests/ui/generic-const-items/const-trait-impl.rs @@ -7,8 +7,8 @@ #![allow(incomplete_features)] #![crate_type = "lib"] -// FIXME(generic_const_items): Interpret `~const` as always-const. -const CREATE<T: ~const Create>: T = T::create(); +// FIXME(generic_const_items, effects): Introduce `const` bounds to make this work. +const CREATE<T: Create>: T = T::create(); pub const K0: i32 = CREATE::<i32>; pub const K1: i32 = CREATE; // arg inferred diff --git a/tests/ui/generic-const-items/const-trait-impl.stderr b/tests/ui/generic-const-items/const-trait-impl.stderr index 34360c581d5..64aa8adf8a7 100644 --- a/tests/ui/generic-const-items/const-trait-impl.stderr +++ b/tests/ui/generic-const-items/const-trait-impl.stderr @@ -1,8 +1,8 @@ error[E0015]: cannot call non-const fn `<T as Create>::create` in constants - --> $DIR/const-trait-impl.rs:11:37 + --> $DIR/const-trait-impl.rs:11:30 | -LL | const CREATE<T: ~const Create>: T = T::create(); - | ^^^^^^^^^^^ +LL | const CREATE<T: Create>: T = T::create(); + | ^^^^^^^^^^^ | = note: calls in constants are limited to constant functions, tuple structs and tuple variants diff --git a/tests/ui/impl-trait/auto-trait-coherence.next.stderr b/tests/ui/impl-trait/auto-trait-coherence.next.stderr index 7833ac688ba..cee359997b4 100644 --- a/tests/ui/impl-trait/auto-trait-coherence.next.stderr +++ b/tests/ui/impl-trait/auto-trait-coherence.next.stderr @@ -6,6 +6,8 @@ LL | impl<T: Send> AnotherTrait for T {} ... LL | impl AnotherTrait for D<OpaqueType> { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `D<OpaqueType>` + | + = note: upstream crates may add a new impl of trait `std::marker::Send` for type `OpaqueType` in future versions error: aborting due to previous error diff --git a/tests/ui/impl-trait/erased-regions-in-hidden-ty.current.stderr b/tests/ui/impl-trait/erased-regions-in-hidden-ty.current.stderr index 84b61dc5044..4cd4febc4f0 100644 --- a/tests/ui/impl-trait/erased-regions-in-hidden-ty.current.stderr +++ b/tests/ui/impl-trait/erased-regions-in-hidden-ty.current.stderr @@ -1,4 +1,4 @@ -error: {foo<ReEarlyBound(DefId(..), 0, 'a)>::{closure#0} closure_kind_ty=i8 closure_sig_as_fn_ptr_ty=extern "rust-call" fn(()) upvar_tys=()} +error: {foo<ReEarlyParam(DefId(..), 0, 'a)>::{closure#0} closure_kind_ty=i8 closure_sig_as_fn_ptr_ty=extern "rust-call" fn(()) upvar_tys=()} --> $DIR/erased-regions-in-hidden-ty.rs:11:36 | LL | fn foo<'a: 'a>(x: &'a Vec<i32>) -> impl Fn() + 'static { diff --git a/tests/ui/impl-trait/erased-regions-in-hidden-ty.next.stderr b/tests/ui/impl-trait/erased-regions-in-hidden-ty.next.stderr index 84b61dc5044..4cd4febc4f0 100644 --- a/tests/ui/impl-trait/erased-regions-in-hidden-ty.next.stderr +++ b/tests/ui/impl-trait/erased-regions-in-hidden-ty.next.stderr @@ -1,4 +1,4 @@ -error: {foo<ReEarlyBound(DefId(..), 0, 'a)>::{closure#0} closure_kind_ty=i8 closure_sig_as_fn_ptr_ty=extern "rust-call" fn(()) upvar_tys=()} +error: {foo<ReEarlyParam(DefId(..), 0, 'a)>::{closure#0} closure_kind_ty=i8 closure_sig_as_fn_ptr_ty=extern "rust-call" fn(()) upvar_tys=()} --> $DIR/erased-regions-in-hidden-ty.rs:11:36 | LL | fn foo<'a: 'a>(x: &'a Vec<i32>) -> impl Fn() + 'static { diff --git a/tests/ui/indexing/indexing-requires-a-uint.stderr b/tests/ui/indexing/indexing-requires-a-uint.stderr index 6ea6bb600e9..3041c2c99a1 100644 --- a/tests/ui/indexing/indexing-requires-a-uint.stderr +++ b/tests/ui/indexing/indexing-requires-a-uint.stderr @@ -8,6 +8,8 @@ LL | [0][0u8]; = help: the trait `SliceIndex<[{integer}]>` is implemented for `usize` = help: for that trait implementation, expected `usize`, found `u8` = note: required for `[{integer}]` to implement `Index<u8>` + = note: 1 redundant requirement hidden + = note: required for `[{integer}; 1]` to implement `Index<u8>` error[E0308]: mismatched types --> $DIR/indexing-requires-a-uint.rs:12:18 diff --git a/tests/ui/indexing/point-at-index-for-obligation-failure.rs b/tests/ui/indexing/point-at-index-for-obligation-failure.rs new file mode 100644 index 00000000000..e9c429b53ce --- /dev/null +++ b/tests/ui/indexing/point-at-index-for-obligation-failure.rs @@ -0,0 +1,7 @@ +fn main() { + let a = std::collections::HashMap::<String,String>::new(); + let s = "hello"; + let _b = a[ + &s //~ ERROR E0277 + ]; +} diff --git a/tests/ui/indexing/point-at-index-for-obligation-failure.stderr b/tests/ui/indexing/point-at-index-for-obligation-failure.stderr new file mode 100644 index 00000000000..3e2fbc2ab6f --- /dev/null +++ b/tests/ui/indexing/point-at-index-for-obligation-failure.stderr @@ -0,0 +1,13 @@ +error[E0277]: the trait bound `String: Borrow<&str>` is not satisfied + --> $DIR/point-at-index-for-obligation-failure.rs:5:9 + | +LL | &s + | ^^ the trait `Borrow<&str>` is not implemented for `String` + | + = help: the trait `Borrow<str>` is implemented for `String` + = help: for that trait implementation, expected `str`, found `&str` + = note: required for `HashMap<String, String>` to implement `Index<&&str>` + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/methods/method-ambiguity-no-rcvr.rs b/tests/ui/methods/method-ambiguity-no-rcvr.rs new file mode 100644 index 00000000000..8f36011d41f --- /dev/null +++ b/tests/ui/methods/method-ambiguity-no-rcvr.rs @@ -0,0 +1,14 @@ +struct Qux; + +trait Foo { + fn foo(); +} + +trait FooBar { + fn foo() {} +} + +fn main() { + Qux.foo(); + //~^ ERROR no method named `foo` found for struct `Qux` in the current scope +} diff --git a/tests/ui/methods/method-ambiguity-no-rcvr.stderr b/tests/ui/methods/method-ambiguity-no-rcvr.stderr new file mode 100644 index 00000000000..95c9d7ebac0 --- /dev/null +++ b/tests/ui/methods/method-ambiguity-no-rcvr.stderr @@ -0,0 +1,32 @@ +error[E0599]: no method named `foo` found for struct `Qux` in the current scope + --> $DIR/method-ambiguity-no-rcvr.rs:12:9 + | +LL | struct Qux; + | ---------- method `foo` not found for this struct +... +LL | Qux.foo(); + | ^^^ this is an associated function, not a method + | + = note: found the following associated functions; to be used as methods, functions must have a `self` parameter +note: candidate #1 is defined in the trait `Foo` + --> $DIR/method-ambiguity-no-rcvr.rs:4:5 + | +LL | fn foo(); + | ^^^^^^^^^ +note: candidate #2 is defined in the trait `FooBar` + --> $DIR/method-ambiguity-no-rcvr.rs:8:5 + | +LL | fn foo() {} + | ^^^^^^^^ +help: disambiguate the associated function for candidate #1 + | +LL | <Qux as Foo>::foo(Qux); + | ~~~~~~~~~~~~~~~~~~~~~~ +help: disambiguate the associated function for candidate #2 + | +LL | <Qux as FooBar>::foo(Qux); + | ~~~~~~~~~~~~~~~~~~~~~~~~~ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0599`. diff --git a/tests/ui/mir/build-async-error-body-correctly.rs b/tests/ui/mir/build-async-error-body-correctly.rs new file mode 100644 index 00000000000..1787f80c07e --- /dev/null +++ b/tests/ui/mir/build-async-error-body-correctly.rs @@ -0,0 +1,8 @@ +// edition: 2021 + +async fn asyncfn() { + let binding = match true {}; + //~^ ERROR non-exhaustive patterns: type `bool` is non-empty +} + +fn main() {} diff --git a/tests/ui/mir/build-async-error-body-correctly.stderr b/tests/ui/mir/build-async-error-body-correctly.stderr new file mode 100644 index 00000000000..3d18c249afe --- /dev/null +++ b/tests/ui/mir/build-async-error-body-correctly.stderr @@ -0,0 +1,17 @@ +error[E0004]: non-exhaustive patterns: type `bool` is non-empty + --> $DIR/build-async-error-body-correctly.rs:4:25 + | +LL | let binding = match true {}; + | ^^^^ + | + = note: the matched value is of type `bool` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown + | +LL ~ let binding = match true { +LL + _ => todo!(), +LL ~ }; + | + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0004`. diff --git a/tests/ui/mir/ssa_call_ret.rs b/tests/ui/mir/ssa_call_ret.rs new file mode 100644 index 00000000000..6132a6691de --- /dev/null +++ b/tests/ui/mir/ssa_call_ret.rs @@ -0,0 +1,30 @@ +// Regression test for issue #117331, where variable `a` was misidentified as +// being in SSA form (the definition occurs on the return edge only). +// +// edition:2021 +// compile-flags: --crate-type=lib +// build-pass +// needs-unwind +#![feature(custom_mir, core_intrinsics)] +use core::intrinsics::mir::*; + +#[custom_mir(dialect = "runtime", phase = "optimized")] +pub fn f() -> u32 { + mir!( + let a: u32; + { + Call(a = g(), bb1, UnwindCleanup(bb2)) + } + bb1 = { + RET = a; + Return() + } + bb2 (cleanup) = { + RET = a; + UnwindResume() + } + ) +} + +#[inline(never)] +pub fn g() -> u32 { 0 } diff --git a/tests/ui/mir/validate/noncleanup-cleanup.rs b/tests/ui/mir/validate/noncleanup-cleanup.rs new file mode 100644 index 00000000000..0a1c4528aa6 --- /dev/null +++ b/tests/ui/mir/validate/noncleanup-cleanup.rs @@ -0,0 +1,21 @@ +// Check that validation rejects cleanup edge to a non-cleanup block. +// +// failure-status: 101 +// dont-check-compiler-stderr +// error-pattern: cleanuppad mismatch +#![feature(custom_mir, core_intrinsics)] +extern crate core; +use core::intrinsics::mir::*; + +#[custom_mir(dialect = "built")] +pub fn main() { + mir!( + { + Call(RET = main(), block, UnwindCleanup(block)) + } + block = { + Return() + } + ) + +} diff --git a/tests/ui/mir/validate/noncleanup-resume.rs b/tests/ui/mir/validate/noncleanup-resume.rs new file mode 100644 index 00000000000..e80d09bc90a --- /dev/null +++ b/tests/ui/mir/validate/noncleanup-resume.rs @@ -0,0 +1,17 @@ +// Check that validation rejects resume terminator in a non-cleanup block. +// +// failure-status: 101 +// dont-check-compiler-stderr +// error-pattern: resume on non-cleanup block +#![feature(custom_mir, core_intrinsics)] +extern crate core; +use core::intrinsics::mir::*; + +#[custom_mir(dialect = "built")] +pub fn main() { + mir!( + { + UnwindResume() + } + ) +} diff --git a/tests/ui/mir/validate/noncleanup-terminate.rs b/tests/ui/mir/validate/noncleanup-terminate.rs new file mode 100644 index 00000000000..2a74668370d --- /dev/null +++ b/tests/ui/mir/validate/noncleanup-terminate.rs @@ -0,0 +1,17 @@ +// Check that validation rejects terminate terminator in a non-cleanup block. +// +// failure-status: 101 +// dont-check-compiler-stderr +// error-pattern: terminate on non-cleanup block +#![feature(custom_mir, core_intrinsics)] +extern crate core; +use core::intrinsics::mir::*; + +#[custom_mir(dialect = "built")] +pub fn main() { + mir!( + { + UnwindTerminate(ReasonAbi) + } + ) +} diff --git a/tests/ui/nll/closure-requirements/escape-argument-callee.stderr b/tests/ui/nll/closure-requirements/escape-argument-callee.stderr index b3cb7813e19..a8f6559e425 100644 --- a/tests/ui/nll/closure-requirements/escape-argument-callee.stderr +++ b/tests/ui/nll/closure-requirements/escape-argument-callee.stderr @@ -6,7 +6,7 @@ LL | let mut closure = expect_sig(|p, y| *p = y); | = note: defining type: test::{closure#0} with closure args [ i16, - for<Region(BrAnon), Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) mut &ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) i32, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 2, kind: BrAnon }) i32)), + for<Region(BrAnon), Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((&ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) mut &ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) i32, &ReBound(DebruijnIndex(0), BoundRegion { var: 2, kind: BrAnon }) i32)), (), ] diff --git a/tests/ui/nll/closure-requirements/escape-argument.stderr b/tests/ui/nll/closure-requirements/escape-argument.stderr index 4f0156728ac..40f04bb6da6 100644 --- a/tests/ui/nll/closure-requirements/escape-argument.stderr +++ b/tests/ui/nll/closure-requirements/escape-argument.stderr @@ -6,7 +6,7 @@ LL | let mut closure = expect_sig(|p, y| *p = y); | = note: defining type: test::{closure#0} with closure args [ i16, - for<Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) mut &ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) i32, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) i32)), + for<Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((&ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) mut &ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) i32, &ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) i32)), (), ] diff --git a/tests/ui/nll/closure-requirements/propagate-approximated-fail-no-postdom.stderr b/tests/ui/nll/closure-requirements/propagate-approximated-fail-no-postdom.stderr index ccf56bf6f37..ef2cb4067d7 100644 --- a/tests/ui/nll/closure-requirements/propagate-approximated-fail-no-postdom.stderr +++ b/tests/ui/nll/closure-requirements/propagate-approximated-fail-no-postdom.stderr @@ -6,7 +6,7 @@ LL | |_outlives1, _outlives2, _outlives3, x, y| { | = note: defining type: supply::{closure#0} with closure args [ i16, - for<Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((std::cell::Cell<&'?1 &ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>, std::cell::Cell<&'?2 &ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) &'?3 u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>)), + for<Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((std::cell::Cell<&'?1 &ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>, std::cell::Cell<&'?2 &ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>, std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) &'?3 u32>, std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>, std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>)), (), ] = note: late-bound region is '?4 diff --git a/tests/ui/nll/closure-requirements/propagate-approximated-ref.stderr b/tests/ui/nll/closure-requirements/propagate-approximated-ref.stderr index a16433c9d37..db48a4ce70c 100644 --- a/tests/ui/nll/closure-requirements/propagate-approximated-ref.stderr +++ b/tests/ui/nll/closure-requirements/propagate-approximated-ref.stderr @@ -6,7 +6,7 @@ LL | establish_relationships(&cell_a, &cell_b, |_outlives1, _outlives2, x, y | = note: defining type: supply::{closure#0} with closure args [ i16, - for<Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) std::cell::Cell<&'?1 &ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 2, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) &'?2 u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 4, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 5, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) u32>)), + for<Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((&ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) std::cell::Cell<&'?1 &ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>, &ReBound(DebruijnIndex(0), BoundRegion { var: 2, kind: BrAnon }) std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) &'?2 u32>, &ReBound(DebruijnIndex(0), BoundRegion { var: 4, kind: BrAnon }) std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>, &ReBound(DebruijnIndex(0), BoundRegion { var: 5, kind: BrAnon }) std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) u32>)), (), ] = note: late-bound region is '?3 diff --git a/tests/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-comparing-against-free.stderr b/tests/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-comparing-against-free.stderr index 9e0f16c0fc7..5ce3dae5a33 100644 --- a/tests/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-comparing-against-free.stderr +++ b/tests/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-comparing-against-free.stderr @@ -6,7 +6,7 @@ LL | foo(cell, |cell_a, cell_x| { | = note: defining type: case1::{closure#0} with closure args [ i32, - for<Region(BrAnon)> extern "rust-call" fn((std::cell::Cell<&'?1 u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>)), + for<Region(BrAnon)> extern "rust-call" fn((std::cell::Cell<&'?1 u32>, std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>)), (), ] @@ -36,7 +36,7 @@ LL | foo(cell, |cell_a, cell_x| { | = note: defining type: case2::{closure#0} with closure args [ i32, - for<Region(BrAnon)> extern "rust-call" fn((std::cell::Cell<&'?1 u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>)), + for<Region(BrAnon)> extern "rust-call" fn((std::cell::Cell<&'?1 u32>, std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>)), (), ] = note: number of external vids: 2 diff --git a/tests/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-no-bound.stderr b/tests/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-no-bound.stderr index e4989e32155..ffd526d90af 100644 --- a/tests/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-no-bound.stderr +++ b/tests/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-no-bound.stderr @@ -6,7 +6,7 @@ LL | establish_relationships(&cell_a, &cell_b, |_outlives, x, y| { | = note: defining type: supply::{closure#0} with closure args [ i16, - for<Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) std::cell::Cell<&'?1 &ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 2, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 4, kind: BrAnon }) u32>)), + for<Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((&ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) std::cell::Cell<&'?1 &ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>, &ReBound(DebruijnIndex(0), BoundRegion { var: 2, kind: BrAnon }) std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>, &ReBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 4, kind: BrAnon }) u32>)), (), ] = note: late-bound region is '?2 diff --git a/tests/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-wrong-bound.stderr b/tests/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-wrong-bound.stderr index be35e62d070..726d0dc2a4c 100644 --- a/tests/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-wrong-bound.stderr +++ b/tests/ui/nll/closure-requirements/propagate-approximated-shorter-to-static-wrong-bound.stderr @@ -6,7 +6,7 @@ LL | establish_relationships(&cell_a, &cell_b, |_outlives1, _outlives2, x, y | = note: defining type: supply::{closure#0} with closure args [ i16, - for<Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) std::cell::Cell<&'?1 &ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 2, kind: BrAnon }) std::cell::Cell<&'?2 &ReLateBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 4, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 5, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) u32>)), + for<Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((&ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) std::cell::Cell<&'?1 &ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>, &ReBound(DebruijnIndex(0), BoundRegion { var: 2, kind: BrAnon }) std::cell::Cell<&'?2 &ReBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) u32>, &ReBound(DebruijnIndex(0), BoundRegion { var: 4, kind: BrAnon }) std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>, &ReBound(DebruijnIndex(0), BoundRegion { var: 5, kind: BrAnon }) std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) u32>)), (), ] = note: late-bound region is '?3 diff --git a/tests/ui/nll/closure-requirements/propagate-approximated-val.stderr b/tests/ui/nll/closure-requirements/propagate-approximated-val.stderr index 8880dd816a1..5a65c768448 100644 --- a/tests/ui/nll/closure-requirements/propagate-approximated-val.stderr +++ b/tests/ui/nll/closure-requirements/propagate-approximated-val.stderr @@ -6,7 +6,7 @@ LL | establish_relationships(cell_a, cell_b, |outlives1, outlives2, x, y| { | = note: defining type: test::{closure#0} with closure args [ i16, - for<Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((std::cell::Cell<&'?1 &ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) &'?2 u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>)), + for<Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((std::cell::Cell<&'?1 &ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>, std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) &'?2 u32>, std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>, std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>)), (), ] = note: late-bound region is '?3 diff --git a/tests/ui/nll/closure-requirements/propagate-despite-same-free-region.stderr b/tests/ui/nll/closure-requirements/propagate-despite-same-free-region.stderr index 47774b63f81..0dd53f81ae1 100644 --- a/tests/ui/nll/closure-requirements/propagate-despite-same-free-region.stderr +++ b/tests/ui/nll/closure-requirements/propagate-despite-same-free-region.stderr @@ -6,7 +6,7 @@ LL | |_outlives1, _outlives2, x, y| { | = note: defining type: supply::{closure#0} with closure args [ i16, - for<Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((std::cell::Cell<&'?1 &ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) &'?2 u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>, std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>)), + for<Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((std::cell::Cell<&'?1 &ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>, std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) &'?2 u32>, std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) u32>, std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>)), (), ] = note: late-bound region is '?3 diff --git a/tests/ui/nll/closure-requirements/propagate-fail-to-approximate-longer-no-bounds.stderr b/tests/ui/nll/closure-requirements/propagate-fail-to-approximate-longer-no-bounds.stderr index 3404bb12827..f7a0ee9b18d 100644 --- a/tests/ui/nll/closure-requirements/propagate-fail-to-approximate-longer-no-bounds.stderr +++ b/tests/ui/nll/closure-requirements/propagate-fail-to-approximate-longer-no-bounds.stderr @@ -6,7 +6,7 @@ LL | establish_relationships(&cell_a, &cell_b, |_outlives, x, y| { | = note: defining type: supply::{closure#0} with closure args [ i16, - for<Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) &'?1 u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 2, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 4, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>)), + for<Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((&ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) &'?1 u32>, &ReBound(DebruijnIndex(0), BoundRegion { var: 2, kind: BrAnon }) std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) u32>, &ReBound(DebruijnIndex(0), BoundRegion { var: 4, kind: BrAnon }) std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>)), (), ] = note: late-bound region is '?2 diff --git a/tests/ui/nll/closure-requirements/propagate-fail-to-approximate-longer-wrong-bounds.stderr b/tests/ui/nll/closure-requirements/propagate-fail-to-approximate-longer-wrong-bounds.stderr index e40648912e3..fa9fa9e8f3c 100644 --- a/tests/ui/nll/closure-requirements/propagate-fail-to-approximate-longer-wrong-bounds.stderr +++ b/tests/ui/nll/closure-requirements/propagate-fail-to-approximate-longer-wrong-bounds.stderr @@ -6,7 +6,7 @@ LL | establish_relationships(&cell_a, &cell_b, |_outlives1, _outlives2, x, y | = note: defining type: supply::{closure#0} with closure args [ i16, - for<Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) &'?1 u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 2, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) &'?2 u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 4, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 5, kind: BrAnon }) std::cell::Cell<&ReLateBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) u32>)), + for<Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((&ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) &'?1 u32>, &ReBound(DebruijnIndex(0), BoundRegion { var: 2, kind: BrAnon }) std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) &'?2 u32>, &ReBound(DebruijnIndex(0), BoundRegion { var: 4, kind: BrAnon }) std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) u32>, &ReBound(DebruijnIndex(0), BoundRegion { var: 5, kind: BrAnon }) std::cell::Cell<&ReBound(DebruijnIndex(0), BoundRegion { var: 3, kind: BrAnon }) u32>)), (), ] = note: late-bound region is '?3 diff --git a/tests/ui/nll/closure-requirements/return-wrong-bound-region.stderr b/tests/ui/nll/closure-requirements/return-wrong-bound-region.stderr index 18fb7195d02..35e4a16c8da 100644 --- a/tests/ui/nll/closure-requirements/return-wrong-bound-region.stderr +++ b/tests/ui/nll/closure-requirements/return-wrong-bound-region.stderr @@ -6,7 +6,7 @@ LL | expect_sig(|a, b| b); // ought to return `a` | = note: defining type: test::{closure#0} with closure args [ i16, - for<Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((&ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) i32, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) i32)) -> &ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) i32, + for<Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((&ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) i32, &ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) i32)) -> &ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) i32, (), ] diff --git a/tests/ui/nll/ty-outlives/impl-trait-captures.stderr b/tests/ui/nll/ty-outlives/impl-trait-captures.stderr index ba885d1b97e..320f529624f 100644 --- a/tests/ui/nll/ty-outlives/impl-trait-captures.stderr +++ b/tests/ui/nll/ty-outlives/impl-trait-captures.stderr @@ -1,17 +1,17 @@ -error[E0700]: hidden type for `Opaque(DefId(0:13 ~ impl_trait_captures[aeb9]::foo::{opaque#0}), [ReEarlyBound(DefId(0:9 ~ impl_trait_captures[aeb9]::foo::'a), 0, 'a), T, ReEarlyBound(DefId(0:9 ~ impl_trait_captures[aeb9]::foo::'a), 0, 'a)])` captures lifetime that does not appear in bounds +error[E0700]: hidden type for `Opaque(DefId(0:13 ~ impl_trait_captures[aeb9]::foo::{opaque#0}), [ReEarlyParam(DefId(0:9 ~ impl_trait_captures[aeb9]::foo::'a), 0, 'a), T, ReEarlyParam(DefId(0:9 ~ impl_trait_captures[aeb9]::foo::'a), 0, 'a)])` captures lifetime that does not appear in bounds --> $DIR/impl-trait-captures.rs:11:5 | LL | fn foo<'a, T>(x: &T) -> impl Foo<'a> { | -- ------------ opaque type defined here | | - | hidden type `&ReFree(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), BrNamed(DefId(0:12 ~ impl_trait_captures[aeb9]::foo::'_), '_)) T` captures the anonymous lifetime defined here + | hidden type `&ReLateParam(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), BrNamed(DefId(0:12 ~ impl_trait_captures[aeb9]::foo::'_), '_)) T` captures the anonymous lifetime defined here LL | x | ^ | -help: to declare that `Opaque(DefId(0:13 ~ impl_trait_captures[aeb9]::foo::{opaque#0}), [ReEarlyBound(DefId(0:9 ~ impl_trait_captures[aeb9]::foo::'a), 0, 'a), T, ReEarlyBound(DefId(0:14 ~ impl_trait_captures[aeb9]::foo::{opaque#0}::'a), 2, 'a)])` captures `ReFree(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), BrNamed(DefId(0:12 ~ impl_trait_captures[aeb9]::foo::'_), '_))`, you can add an explicit `ReFree(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), BrNamed(DefId(0:12 ~ impl_trait_captures[aeb9]::foo::'_), '_))` lifetime bound +help: to declare that `Opaque(DefId(0:13 ~ impl_trait_captures[aeb9]::foo::{opaque#0}), [ReEarlyParam(DefId(0:9 ~ impl_trait_captures[aeb9]::foo::'a), 0, 'a), T, ReEarlyParam(DefId(0:14 ~ impl_trait_captures[aeb9]::foo::{opaque#0}::'a), 2, 'a)])` captures `ReLateParam(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), BrNamed(DefId(0:12 ~ impl_trait_captures[aeb9]::foo::'_), '_))`, you can add an explicit `ReLateParam(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), BrNamed(DefId(0:12 ~ impl_trait_captures[aeb9]::foo::'_), '_))` lifetime bound | -LL | fn foo<'a, T>(x: &T) -> impl Foo<'a> + ReFree(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), BrNamed(DefId(0:12 ~ impl_trait_captures[aeb9]::foo::'_), '_)) { - | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +LL | fn foo<'a, T>(x: &T) -> impl Foo<'a> + ReLateParam(DefId(0:8 ~ impl_trait_captures[aeb9]::foo), BrNamed(DefId(0:12 ~ impl_trait_captures[aeb9]::foo::'_), '_)) { + | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ error: aborting due to previous error diff --git a/tests/ui/nll/ty-outlives/ty-param-closure-approximate-lower-bound.stderr b/tests/ui/nll/ty-outlives/ty-param-closure-approximate-lower-bound.stderr index 59e29e9a420..0048eef6779 100644 --- a/tests/ui/nll/ty-outlives/ty-param-closure-approximate-lower-bound.stderr +++ b/tests/ui/nll/ty-outlives/ty-param-closure-approximate-lower-bound.stderr @@ -6,7 +6,7 @@ LL | twice(cell, value, |a, b| invoke(a, b)); | = note: defining type: generic::<T>::{closure#0} with closure args [ i16, - for<Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((std::option::Option<std::cell::Cell<&'?1 &ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) ()>>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) T)), + for<Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((std::option::Option<std::cell::Cell<&'?1 &ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) ()>>, &ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) T)), (), ] = note: number of external vids: 2 @@ -28,7 +28,7 @@ LL | twice(cell, value, |a, b| invoke(a, b)); | = note: defining type: generic_fail::<T>::{closure#0} with closure args [ i16, - for<Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((std::option::Option<std::cell::Cell<&'?1 &ReLateBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) ()>>, &ReLateBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) T)), + for<Region(BrAnon), Region(BrAnon)> extern "rust-call" fn((std::option::Option<std::cell::Cell<&'?1 &ReBound(DebruijnIndex(0), BoundRegion { var: 0, kind: BrAnon }) ()>>, &ReBound(DebruijnIndex(0), BoundRegion { var: 1, kind: BrAnon }) T)), (), ] = note: late-bound region is '?2 diff --git a/tests/ui/parser/brace-in-let-chain.rs b/tests/ui/parser/brace-in-let-chain.rs new file mode 100644 index 00000000000..1f34c73a2c3 --- /dev/null +++ b/tests/ui/parser/brace-in-let-chain.rs @@ -0,0 +1,58 @@ +// issue #117766 + +#![feature(let_chains)] +fn main() { + if let () = () + && let () = () { //~ERROR: found a `{` in the middle of a let-chain + && let () = () + { + } +} + +fn quux() { + while let () = () + && let () = () { //~ERROR: found a `{` in the middle of a let-chain + && let () = () + { + } +} + +fn foobar() { + while false {} + { + && let () = () +} + +fn fubar() { + while false { + { + && let () = () + } +} + +fn qux() { + let foo = false; + match foo { + _ if foo => { + && let () = () + _ => {} + } +} + +fn foo() { + { + && let () = () +} + +fn bar() { + if false {} + { + && let () = () +} + +fn baz() { + if false { + { + && let () = () + } +} //~ERROR: this file contains an unclosed delimiter diff --git a/tests/ui/parser/brace-in-let-chain.stderr b/tests/ui/parser/brace-in-let-chain.stderr new file mode 100644 index 00000000000..7182d86d001 --- /dev/null +++ b/tests/ui/parser/brace-in-let-chain.stderr @@ -0,0 +1,65 @@ +error: this file contains an unclosed delimiter + --> $DIR/brace-in-let-chain.rs:58:54 + | +LL | fn main() { + | - unclosed delimiter +... +LL | fn quux() { + | - unclosed delimiter +... +LL | fn foobar() { + | - unclosed delimiter +... +LL | fn fubar() { + | - unclosed delimiter +... +LL | fn qux() { + | - unclosed delimiter +... +LL | fn foo() { + | - unclosed delimiter +... +LL | fn bar() { + | - unclosed delimiter +... +LL | fn baz() { + | - unclosed delimiter +LL | if false { +LL | { + | - this delimiter might not be properly closed... +LL | && let () = () +LL | } + | - ...as it matches this but it has different indentation +LL | } + | ^ + +error: found a `{` in the middle of a let-chain + --> $DIR/brace-in-let-chain.rs:14:24 + | +LL | && let () = () { + | ^ +LL | && let () = () + | ------ you might have meant to continue the let-chain here + | +help: consider removing this brace to parse the `let` as part of the same chain + | +LL - && let () = () { +LL + && let () = () + | + +error: found a `{` in the middle of a let-chain + --> $DIR/brace-in-let-chain.rs:6:24 + | +LL | && let () = () { + | ^ +LL | && let () = () + | ------ you might have meant to continue the let-chain here + | +help: consider removing this brace to parse the `let` as part of the same chain + | +LL - && let () = () { +LL + && let () = () + | + +error: aborting due to 3 previous errors + diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/assoc-type-const-bound-usage.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/assoc-type-const-bound-usage.stderr index 6d436018bf4..e6b663c47d7 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/assoc-type-const-bound-usage.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/assoc-type-const-bound-usage.stderr @@ -1,3 +1,11 @@ +error: `~const` is not allowed here + --> $DIR/assoc-type-const-bound-usage.rs:7:17 + | +LL | type Assoc: ~const Foo; + | ^^^^^^^^^^ + | + = note: this item cannot have `~const` trait bounds + error[E0308]: mismatched types --> $DIR/assoc-type-const-bound-usage.rs:12:5 | @@ -7,6 +15,6 @@ LL | <T as Foo>::Assoc::foo(); = note: expected constant `host` found constant `true` -error: aborting due to previous error +error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/assoc-type.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/assoc-type.stderr index 0cffae1da8d..7df16ca5a3b 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/assoc-type.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/assoc-type.stderr @@ -1,8 +1,16 @@ +error: `~const` is not allowed here + --> $DIR/assoc-type.rs:17:15 + | +LL | type Bar: ~const std::ops::Add; + | ^^^^^^^^^^^^^^^^^^^^ + | + = note: this item cannot have `~const` trait bounds + error: ~const can only be applied to `#[const_trait]` traits --> $DIR/assoc-type.rs:17:22 | LL | type Bar: ~const std::ops::Add; | ^^^^^^^^^^^^^ -error: aborting due to previous error +error: aborting due to 2 previous errors diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/const-bound-on-not-const-associated-fn.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-bound-on-not-const-associated-fn.rs index 1e22ddcea8d..0025449c492 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/const-bound-on-not-const-associated-fn.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-bound-on-not-const-associated-fn.rs @@ -1,4 +1,4 @@ -#![feature(const_trait_impl, effects)] +#![feature(const_trait_impl)] #[const_trait] trait MyTrait { diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/const-bound-on-not-const-associated-fn.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-bound-on-not-const-associated-fn.stderr index 9210f642706..9210f642706 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/const-bound-on-not-const-associated-fn.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-bound-on-not-const-associated-fn.stderr diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop.precise.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop.precise.stderr index 23e36887025..be75e852e0a 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop.precise.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop.precise.stderr @@ -1,19 +1,10 @@ -error[E0493]: destructor of `T` cannot be evaluated at compile-time - --> $DIR/const-drop.rs:19:32 +error: `~const` is not allowed here + --> $DIR/const-drop.rs:67:38 | -LL | const fn a<T: ~const Destruct>(_: T) {} - | ^ - value is dropped here - | | - | the destructor for this type cannot be evaluated in constant functions - -error[E0493]: destructor of `S<'_>` cannot be evaluated at compile-time - --> $DIR/const-drop.rs:24:13 +LL | pub struct ConstDropWithBound<T: ~const SomeTrait>(pub core::marker::PhantomData<T>); + | ^^^^^^^^^^^^^^^^ | -LL | let _ = S(&mut c); - | ^^^^^^^^^- value is dropped here - | | - | the destructor for this type cannot be evaluated in constant functions + = note: this item cannot have `~const` trait bounds -error: aborting due to 2 previous errors +error: aborting due to previous error -For more information about this error, try `rustc --explain E0493`. diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop.rs index 0a9cf638a2d..9da84cdb052 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop.rs @@ -63,6 +63,7 @@ mod t { fn foo() {} } + // FIXME(effects): This should be a `const` bound instead of a `~const` one. pub struct ConstDropWithBound<T: ~const SomeTrait>(pub core::marker::PhantomData<T>); impl<T: ~const SomeTrait> const Drop for ConstDropWithBound<T> { diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop.stock.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop.stock.stderr index 23e36887025..be75e852e0a 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop.stock.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-drop.stock.stderr @@ -1,19 +1,10 @@ -error[E0493]: destructor of `T` cannot be evaluated at compile-time - --> $DIR/const-drop.rs:19:32 +error: `~const` is not allowed here + --> $DIR/const-drop.rs:67:38 | -LL | const fn a<T: ~const Destruct>(_: T) {} - | ^ - value is dropped here - | | - | the destructor for this type cannot be evaluated in constant functions - -error[E0493]: destructor of `S<'_>` cannot be evaluated at compile-time - --> $DIR/const-drop.rs:24:13 +LL | pub struct ConstDropWithBound<T: ~const SomeTrait>(pub core::marker::PhantomData<T>); + | ^^^^^^^^^^^^^^^^ | -LL | let _ = S(&mut c); - | ^^^^^^^^^- value is dropped here - | | - | the destructor for this type cannot be evaluated in constant functions + = note: this item cannot have `~const` trait bounds -error: aborting due to 2 previous errors +error: aborting due to previous error -For more information about this error, try `rustc --explain E0493`. diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-90052.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-90052.rs deleted file mode 100644 index 21ddf4ab4e5..00000000000 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-90052.rs +++ /dev/null @@ -1,9 +0,0 @@ -#![feature(const_trait_impl)] - -#[const_trait] -trait Bar {} - -fn foo<T>() where T: ~const Bar {} -//~^ ERROR `~const` is not allowed - -fn main() {} diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-90052.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-90052.stderr deleted file mode 100644 index b2a9365378b..00000000000 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/issue-90052.stderr +++ /dev/null @@ -1,14 +0,0 @@ -error: `~const` is not allowed here - --> $DIR/issue-90052.rs:6:22 - | -LL | fn foo<T>() where T: ~const Bar {} - | ^^^^^^^^^^ - | -note: this function is not `const`, so it cannot have `~const` trait bounds - --> $DIR/issue-90052.rs:6:4 - | -LL | fn foo<T>() where T: ~const Bar {} - | ^^^ - -error: aborting due to previous error - diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/const-default-bound-non-const-specialized-bound.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/const-default-bound-non-const-specialized-bound.rs index 3db59631ef8..234b0dd0063 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/const-default-bound-non-const-specialized-bound.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/specialization/const-default-bound-non-const-specialized-bound.rs @@ -18,11 +18,7 @@ trait Bar { fn bar(); } -// bgr360: I was only able to exercise the code path that raises the -// "missing ~const qualifier" error by making this base impl non-const, even -// though that doesn't really make sense to do. As seen below, if the base impl -// is made const, rustc fails earlier with an overlapping impl failure. -impl<T> Bar for T +impl<T> const Bar for T where T: ~const Foo, { diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.nn.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.nn.stderr index b60399c57dc..204f0f9f89f 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.nn.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.nn.stderr @@ -1,3 +1,15 @@ +error: `~const` is not allowed here + --> $DIR/super-traits-fail-2.rs:11:12 + | +LL | trait Bar: ~const Foo {} + | ^^^^^^^^^^ + | +note: this trait is not a `#[const_trait]`, so it cannot have `~const` trait bounds + --> $DIR/super-traits-fail-2.rs:11:1 + | +LL | trait Bar: ~const Foo {} + | ^^^^^^^^^^^^^^^^^^^^^^^^ + error: ~const can only be applied to `#[const_trait]` traits --> $DIR/super-traits-fail-2.rs:11:19 | @@ -12,5 +24,5 @@ LL | trait Bar: ~const Foo {} | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -error: aborting due to 2 previous errors +error: aborting due to 3 previous errors diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.yn.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.yn.stderr index 5d34156a519..06330958b8e 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.yn.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-2.yn.stderr @@ -1,11 +1,14 @@ -error[E0015]: cannot call non-const fn `<T as Foo>::a` in constant functions - --> $DIR/super-traits-fail-2.rs:16:7 +error: `~const` is not allowed here + --> $DIR/super-traits-fail-2.rs:11:12 | -LL | x.a(); - | ^^^ +LL | trait Bar: ~const Foo {} + | ^^^^^^^^^^ | - = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants +note: this trait is not a `#[const_trait]`, so it cannot have `~const` trait bounds + --> $DIR/super-traits-fail-2.rs:11:1 + | +LL | trait Bar: ~const Foo {} + | ^^^^^^^^^^^^^^^^^^^^^^^^ error: aborting due to previous error -For more information about this error, try `rustc --explain E0015`. diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.nn.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.nn.stderr index eb12a236d8c..77b13a351e2 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.nn.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.nn.stderr @@ -1,3 +1,15 @@ +error: `~const` is not allowed here + --> $DIR/super-traits-fail-3.rs:13:12 + | +LL | trait Bar: ~const Foo {} + | ^^^^^^^^^^ + | +note: this trait is not a `#[const_trait]`, so it cannot have `~const` trait bounds + --> $DIR/super-traits-fail-3.rs:13:1 + | +LL | trait Bar: ~const Foo {} + | ^^^^^^^^^^^^^^^^^^^^^^^^ + error: ~const can only be applied to `#[const_trait]` traits --> $DIR/super-traits-fail-3.rs:13:19 | @@ -13,10 +25,10 @@ LL | trait Bar: ~const Foo {} = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` error: ~const can only be applied to `#[const_trait]` traits - --> $DIR/super-traits-fail-3.rs:17:24 + --> $DIR/super-traits-fail-3.rs:18:24 | LL | const fn foo<T: ~const Bar>(x: &T) { | ^^^ -error: aborting due to 3 previous errors +error: aborting due to 4 previous errors diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.rs index 16c592830d7..5994057b2db 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.rs @@ -13,6 +13,7 @@ trait Foo { trait Bar: ~const Foo {} //[ny,nn]~^ ERROR: ~const can only be applied to `#[const_trait]` //[ny,nn]~| ERROR: ~const can only be applied to `#[const_trait]` +//[yn,nn]~^^^ ERROR: `~const` is not allowed here const fn foo<T: ~const Bar>(x: &T) { //[yn,nn]~^ ERROR: ~const can only be applied to `#[const_trait]` diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.yn.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.yn.stderr index 58225b94591..2e41eb9b4c4 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.yn.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.yn.stderr @@ -1,8 +1,20 @@ +error: `~const` is not allowed here + --> $DIR/super-traits-fail-3.rs:13:12 + | +LL | trait Bar: ~const Foo {} + | ^^^^^^^^^^ + | +note: this trait is not a `#[const_trait]`, so it cannot have `~const` trait bounds + --> $DIR/super-traits-fail-3.rs:13:1 + | +LL | trait Bar: ~const Foo {} + | ^^^^^^^^^^^^^^^^^^^^^^^^ + error: ~const can only be applied to `#[const_trait]` traits - --> $DIR/super-traits-fail-3.rs:17:24 + --> $DIR/super-traits-fail-3.rs:18:24 | LL | const fn foo<T: ~const Bar>(x: &T) { | ^^^ -error: aborting due to previous error +error: aborting due to 2 previous errors diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.yy.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.yy.stderr index 6bc643e6871..d81d9aa94da 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.yy.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/super-traits-fail-3.yy.stderr @@ -1,5 +1,5 @@ error[E0015]: cannot call non-const fn `<T as Foo>::a` in constant functions - --> $DIR/super-traits-fail-3.rs:19:7 + --> $DIR/super-traits-fail-3.rs:20:7 | LL | x.a(); | ^^^ diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-invalid-places.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-invalid-places.rs index 95f7aaba0fc..bbe1194f7a3 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-invalid-places.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-invalid-places.rs @@ -1,7 +1,55 @@ #![feature(const_trait_impl)] -#![feature(associated_type_bounds)] -struct TildeQuestion<T: ~const ?Sized>(std::marker::PhantomData<T>); -//~^ ERROR `~const` and `?` are mutually exclusive +#[const_trait] +trait Trait {} + +// Regression test for issue #90052. +fn non_const_function<T: ~const Trait>() {} //~ ERROR `~const` is not allowed + +struct Struct<T: ~const Trait> { field: T } //~ ERROR `~const` is not allowed here +struct TupleStruct<T: ~const Trait>(T); //~ ERROR `~const` is not allowed here +struct UnitStruct<T: ~const Trait>; //~ ERROR `~const` is not allowed here + +enum Enum<T: ~const Trait> { Variant(T) } //~ ERROR `~const` is not allowed here + +union Union<T: ~const Trait> { field: T } //~ ERROR `~const` is not allowed here + +type Type<T: ~const Trait> = T; //~ ERROR `~const` is not allowed here + +const CONSTANT<T: ~const Trait>: () = (); //~ ERROR `~const` is not allowed here +//~^ ERROR generic const items are experimental + +trait NonConstTrait { + type Type<T: ~const Trait>: ~const Trait; + //~^ ERROR `~const` is not allowed + //~| ERROR `~const` is not allowed + fn non_const_function<T: ~const Trait>(); //~ ERROR `~const` is not allowed + const CONSTANT<T: ~const Trait>: (); //~ ERROR `~const` is not allowed + //~^ ERROR generic const items are experimental +} + +impl NonConstTrait for () { + type Type<T: ~const Trait> = (); //~ ERROR `~const` is not allowed + fn non_const_function<T: ~const Trait>() {} //~ ERROR `~const` is not allowed + const CONSTANT<T: ~const Trait>: () = (); //~ ERROR `~const` is not allowed + //~^ ERROR generic const items are experimental +} + +struct Implementor; + +impl Implementor { + type Type<T: ~const Trait> = (); //~ ERROR `~const` is not allowed + //~^ ERROR inherent associated types are unstable + fn non_const_function<T: ~const Trait>() {} //~ ERROR `~const` is not allowed + const CONSTANT<T: ~const Trait>: () = (); //~ ERROR `~const` is not allowed + //~^ ERROR generic const items are experimental +} + +// non-const traits +trait Child0: ~const Trait {} //~ ERROR `~const` is not allowed +trait Child1 where Self: ~const Trait {} //~ ERROR `~const` is not allowed + +// non-const impl +impl<T: ~const Trait> Trait for T {} //~ ERROR `~const` is not allowed fn main() {} diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-invalid-places.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-invalid-places.stderr index d20f146df3f..c14f9a99035 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-invalid-places.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-invalid-places.stderr @@ -1,8 +1,244 @@ -error: `~const` and `?` are mutually exclusive - --> $DIR/tilde-const-invalid-places.rs:4:25 +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:7:26 | -LL | struct TildeQuestion<T: ~const ?Sized>(std::marker::PhantomData<T>); - | ^^^^^^^^^^^^^ +LL | fn non_const_function<T: ~const Trait>() {} + | ^^^^^^^^^^^^ + | +note: this function is not `const`, so it cannot have `~const` trait bounds + --> $DIR/tilde-const-invalid-places.rs:7:4 + | +LL | fn non_const_function<T: ~const Trait>() {} + | ^^^^^^^^^^^^^^^^^^ + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:9:18 + | +LL | struct Struct<T: ~const Trait> { field: T } + | ^^^^^^^^^^^^ + | + = note: this item cannot have `~const` trait bounds + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:10:23 + | +LL | struct TupleStruct<T: ~const Trait>(T); + | ^^^^^^^^^^^^ + | + = note: this item cannot have `~const` trait bounds + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:11:22 + | +LL | struct UnitStruct<T: ~const Trait>; + | ^^^^^^^^^^^^ + | + = note: this item cannot have `~const` trait bounds + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:13:14 + | +LL | enum Enum<T: ~const Trait> { Variant(T) } + | ^^^^^^^^^^^^ + | + = note: this item cannot have `~const` trait bounds + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:15:16 + | +LL | union Union<T: ~const Trait> { field: T } + | ^^^^^^^^^^^^ + | + = note: this item cannot have `~const` trait bounds + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:17:14 + | +LL | type Type<T: ~const Trait> = T; + | ^^^^^^^^^^^^ + | + = note: this item cannot have `~const` trait bounds + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:19:19 + | +LL | const CONSTANT<T: ~const Trait>: () = (); + | ^^^^^^^^^^^^ + | + = note: this item cannot have `~const` trait bounds + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:23:18 + | +LL | type Type<T: ~const Trait>: ~const Trait; + | ^^^^^^^^^^^^ + | + = note: this item cannot have `~const` trait bounds + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:23:33 + | +LL | type Type<T: ~const Trait>: ~const Trait; + | ^^^^^^^^^^^^ + | + = note: this item cannot have `~const` trait bounds + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:26:30 + | +LL | fn non_const_function<T: ~const Trait>(); + | ^^^^^^^^^^^^ + | +note: this function is not `const`, so it cannot have `~const` trait bounds + --> $DIR/tilde-const-invalid-places.rs:26:8 + | +LL | fn non_const_function<T: ~const Trait>(); + | ^^^^^^^^^^^^^^^^^^ + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:27:23 + | +LL | const CONSTANT<T: ~const Trait>: (); + | ^^^^^^^^^^^^ + | + = note: this item cannot have `~const` trait bounds + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:32:18 + | +LL | type Type<T: ~const Trait> = (); + | ^^^^^^^^^^^^ + | + = note: this item cannot have `~const` trait bounds + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:33:30 + | +LL | fn non_const_function<T: ~const Trait>() {} + | ^^^^^^^^^^^^ + | +note: this function is not `const`, so it cannot have `~const` trait bounds + --> $DIR/tilde-const-invalid-places.rs:33:8 + | +LL | fn non_const_function<T: ~const Trait>() {} + | ^^^^^^^^^^^^^^^^^^ + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:34:23 + | +LL | const CONSTANT<T: ~const Trait>: () = (); + | ^^^^^^^^^^^^ + | + = note: this item cannot have `~const` trait bounds + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:41:18 + | +LL | type Type<T: ~const Trait> = (); + | ^^^^^^^^^^^^ + | + = note: this item cannot have `~const` trait bounds + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:43:30 + | +LL | fn non_const_function<T: ~const Trait>() {} + | ^^^^^^^^^^^^ + | +note: this function is not `const`, so it cannot have `~const` trait bounds + --> $DIR/tilde-const-invalid-places.rs:43:8 + | +LL | fn non_const_function<T: ~const Trait>() {} + | ^^^^^^^^^^^^^^^^^^ + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:44:23 + | +LL | const CONSTANT<T: ~const Trait>: () = (); + | ^^^^^^^^^^^^ + | + = note: this item cannot have `~const` trait bounds + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:49:15 + | +LL | trait Child0: ~const Trait {} + | ^^^^^^^^^^^^ + | +note: this trait is not a `#[const_trait]`, so it cannot have `~const` trait bounds + --> $DIR/tilde-const-invalid-places.rs:49:1 + | +LL | trait Child0: ~const Trait {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:50:26 + | +LL | trait Child1 where Self: ~const Trait {} + | ^^^^^^^^^^^^ + | +note: this trait is not a `#[const_trait]`, so it cannot have `~const` trait bounds + --> $DIR/tilde-const-invalid-places.rs:50:1 + | +LL | trait Child1 where Self: ~const Trait {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: `~const` is not allowed here + --> $DIR/tilde-const-invalid-places.rs:53:9 + | +LL | impl<T: ~const Trait> Trait for T {} + | ^^^^^^^^^^^^ + | +note: this impl is not `const`, so it cannot have `~const` trait bounds + --> $DIR/tilde-const-invalid-places.rs:53:1 + | +LL | impl<T: ~const Trait> Trait for T {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error[E0658]: generic const items are experimental + --> $DIR/tilde-const-invalid-places.rs:19:15 + | +LL | const CONSTANT<T: ~const Trait>: () = (); + | ^^^^^^^^^^^^^^^^^ + | + = note: see issue #113521 <https://github.com/rust-lang/rust/issues/113521> for more information + = help: add `#![feature(generic_const_items)]` to the crate attributes to enable + +error[E0658]: generic const items are experimental + --> $DIR/tilde-const-invalid-places.rs:27:19 + | +LL | const CONSTANT<T: ~const Trait>: (); + | ^^^^^^^^^^^^^^^^^ + | + = note: see issue #113521 <https://github.com/rust-lang/rust/issues/113521> for more information + = help: add `#![feature(generic_const_items)]` to the crate attributes to enable + +error[E0658]: generic const items are experimental + --> $DIR/tilde-const-invalid-places.rs:34:19 + | +LL | const CONSTANT<T: ~const Trait>: () = (); + | ^^^^^^^^^^^^^^^^^ + | + = note: see issue #113521 <https://github.com/rust-lang/rust/issues/113521> for more information + = help: add `#![feature(generic_const_items)]` to the crate attributes to enable + +error[E0658]: generic const items are experimental + --> $DIR/tilde-const-invalid-places.rs:44:19 + | +LL | const CONSTANT<T: ~const Trait>: () = (); + | ^^^^^^^^^^^^^^^^^ + | + = note: see issue #113521 <https://github.com/rust-lang/rust/issues/113521> for more information + = help: add `#![feature(generic_const_items)]` to the crate attributes to enable + +error[E0658]: inherent associated types are unstable + --> $DIR/tilde-const-invalid-places.rs:41:5 + | +LL | type Type<T: ~const Trait> = (); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #8995 <https://github.com/rust-lang/rust/issues/8995> for more information + = help: add `#![feature(inherent_associated_types)]` to the crate attributes to enable -error: aborting due to previous error +error: aborting due to 26 previous errors +For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-maybe-trait.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-maybe-trait.rs new file mode 100644 index 00000000000..ed911d965d6 --- /dev/null +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-maybe-trait.rs @@ -0,0 +1,6 @@ +#![feature(const_trait_impl)] + +const fn tilde_question<T: ~const ?Sized>() {} +//~^ ERROR `~const` and `?` are mutually exclusive + +fn main() {} diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-maybe-trait.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-maybe-trait.stderr new file mode 100644 index 00000000000..ce74ff8dde7 --- /dev/null +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/tilde-const-maybe-trait.stderr @@ -0,0 +1,8 @@ +error: `~const` and `?` are mutually exclusive + --> $DIR/tilde-const-maybe-trait.rs:3:28 + | +LL | const fn tilde_question<T: ~const ?Sized>() {} + | ^^^^^^^^^^^^^ + +error: aborting due to previous error + diff --git a/tests/ui/suggestions/import-trait-for-method-call.rs b/tests/ui/suggestions/import-trait-for-method-call.rs index 4dbadbdf982..feb2c7e84f1 100644 --- a/tests/ui/suggestions/import-trait-for-method-call.rs +++ b/tests/ui/suggestions/import-trait-for-method-call.rs @@ -1,7 +1,7 @@ use std::hash::BuildHasher; fn next_u64() -> u64 { - let bh = std::collections::hash_map::RandomState::new(); + let bh = std::hash::RandomState::new(); let h = bh.build_hasher(); h.finish() //~ ERROR no method named `finish` found for struct `DefaultHasher` } diff --git a/tests/ui/suggestions/issue-117669.rs b/tests/ui/suggestions/issue-117669.rs new file mode 100644 index 00000000000..09b4f2bd47c --- /dev/null +++ b/tests/ui/suggestions/issue-117669.rs @@ -0,0 +1,4 @@ +fn main() { + let abs: i32 = 3i32.checked_abs(); + //~^ ERROR mismatched types +} diff --git a/tests/ui/suggestions/issue-117669.stderr b/tests/ui/suggestions/issue-117669.stderr new file mode 100644 index 00000000000..f09675fcc5c --- /dev/null +++ b/tests/ui/suggestions/issue-117669.stderr @@ -0,0 +1,18 @@ +error[E0308]: mismatched types + --> $DIR/issue-117669.rs:2:20 + | +LL | let abs: i32 = 3i32.checked_abs(); + | --- ^^^^^^^^^^^^^^^^^^ expected `i32`, found `Option<i32>` + | | + | expected due to this + | + = note: expected type `i32` + found enum `Option<i32>` +help: consider using `Option::expect` to unwrap the `Option<i32>` value, panicking if the value is an `Option::None` + | +LL | let abs: i32 = 3i32.checked_abs().expect("REASON"); + | +++++++++++++++++ + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/suggestions/lifetimes/suggest-using-tick-underscore-lifetime-in-return-trait-object.fixed b/tests/ui/suggestions/lifetimes/suggest-using-tick-underscore-lifetime-in-return-trait-object.fixed new file mode 100644 index 00000000000..84315ad9173 --- /dev/null +++ b/tests/ui/suggestions/lifetimes/suggest-using-tick-underscore-lifetime-in-return-trait-object.fixed @@ -0,0 +1,11 @@ +// run-rustfix +use std::any::Any; + +fn foo<T: Any>(value: &T) -> Box<dyn Any + '_> { + Box::new(value) as Box<dyn Any> + //~^ ERROR lifetime may not live long enough +} + +fn main() { + let _ = foo(&5); +} diff --git a/tests/ui/issues/issue-16922.rs b/tests/ui/suggestions/lifetimes/suggest-using-tick-underscore-lifetime-in-return-trait-object.rs index bbbbf72dbd5..fa7e72ff2a7 100644 --- a/tests/ui/issues/issue-16922.rs +++ b/tests/ui/suggestions/lifetimes/suggest-using-tick-underscore-lifetime-in-return-trait-object.rs @@ -1,3 +1,4 @@ +// run-rustfix use std::any::Any; fn foo<T: Any>(value: &T) -> Box<dyn Any> { diff --git a/tests/ui/issues/issue-16922.stderr b/tests/ui/suggestions/lifetimes/suggest-using-tick-underscore-lifetime-in-return-trait-object.stderr index 9d9f32a97c0..dc5817bfe0f 100644 --- a/tests/ui/issues/issue-16922.stderr +++ b/tests/ui/suggestions/lifetimes/suggest-using-tick-underscore-lifetime-in-return-trait-object.stderr @@ -1,5 +1,5 @@ error: lifetime may not live long enough - --> $DIR/issue-16922.rs:4:5 + --> $DIR/suggest-using-tick-underscore-lifetime-in-return-trait-object.rs:5:5 | LL | fn foo<T: Any>(value: &T) -> Box<dyn Any> { | - let's call the lifetime of this reference `'1` diff --git a/tests/ui/suggestions/suggest-dereferencing-index.stderr b/tests/ui/suggestions/suggest-dereferencing-index.stderr index adf01339972..23f6657f092 100644 --- a/tests/ui/suggestions/suggest-dereferencing-index.stderr +++ b/tests/ui/suggestions/suggest-dereferencing-index.stderr @@ -8,6 +8,8 @@ LL | let one_item_please: i32 = [1, 2, 3][i]; = help: the trait `SliceIndex<[{integer}]>` is implemented for `usize` = help: for that trait implementation, expected `usize`, found `&usize` = note: required for `[{integer}]` to implement `Index<&usize>` + = note: 1 redundant requirement hidden + = note: required for `[{integer}; 3]` to implement `Index<&usize>` help: dereference this index | LL | let one_item_please: i32 = [1, 2, 3][*i]; diff --git a/tests/ui/type-alias-impl-trait/indirect-recursion-issue-112047.rs b/tests/ui/type-alias-impl-trait/indirect-recursion-issue-112047.rs index f6cbbf04d82..6a2ee761e19 100644 --- a/tests/ui/type-alias-impl-trait/indirect-recursion-issue-112047.rs +++ b/tests/ui/type-alias-impl-trait/indirect-recursion-issue-112047.rs @@ -1,6 +1,5 @@ // edition: 2021 // build-fail -//~^^ ERROR cycle detected when computing layout of #![feature(impl_trait_in_assoc_type)] @@ -21,6 +20,7 @@ impl Recur for () { fn recur(self) -> Self::Recur { async move { recur(self).await; } + //~^ ERROR cycle detected when computing layout of } } diff --git a/tests/ui/type-alias-impl-trait/indirect-recursion-issue-112047.stderr b/tests/ui/type-alias-impl-trait/indirect-recursion-issue-112047.stderr index 2063becdb08..80b6aaaf919 100644 --- a/tests/ui/type-alias-impl-trait/indirect-recursion-issue-112047.stderr +++ b/tests/ui/type-alias-impl-trait/indirect-recursion-issue-112047.stderr @@ -1,14 +1,22 @@ -error[E0391]: cycle detected when computing layout of `{async block@$DIR/indirect-recursion-issue-112047.rs:23:9: 23:42}` +error[E0391]: cycle detected when computing layout of `{async block@$DIR/indirect-recursion-issue-112047.rs:22:9: 22:42}` + --> $DIR/indirect-recursion-issue-112047.rs:22:22 | - = note: ...which requires computing layout of `core::mem::maybe_uninit::MaybeUninit<{async fn body@$DIR/indirect-recursion-issue-112047.rs:15:31: 17:2}>`... - = note: ...which requires computing layout of `core::mem::manually_drop::ManuallyDrop<{async fn body@$DIR/indirect-recursion-issue-112047.rs:15:31: 17:2}>`... - = note: ...which requires computing layout of `{async fn body@$DIR/indirect-recursion-issue-112047.rs:15:31: 17:2}`... +LL | async move { recur(self).await; } + | ^^^^^^^^^^^^^^^^^ + | + = note: ...which requires computing layout of `core::mem::maybe_uninit::MaybeUninit<{async fn body@$DIR/indirect-recursion-issue-112047.rs:14:31: 16:2}>`... + = note: ...which requires computing layout of `core::mem::manually_drop::ManuallyDrop<{async fn body@$DIR/indirect-recursion-issue-112047.rs:14:31: 16:2}>`... +note: ...which requires computing layout of `{async fn body@$DIR/indirect-recursion-issue-112047.rs:14:31: 16:2}`... + --> $DIR/indirect-recursion-issue-112047.rs:15:5 + | +LL | t.recur().await; + | ^^^^^^^^^^^^^^^ = note: ...which requires computing layout of `core::mem::maybe_uninit::MaybeUninit<<() as Recur>::Recur>`... - = note: ...which requires computing layout of `core::mem::maybe_uninit::MaybeUninit<{async block@$DIR/indirect-recursion-issue-112047.rs:23:9: 23:42}>`... - = note: ...which requires computing layout of `core::mem::manually_drop::ManuallyDrop<{async block@$DIR/indirect-recursion-issue-112047.rs:23:9: 23:42}>`... - = note: ...which again requires computing layout of `{async block@$DIR/indirect-recursion-issue-112047.rs:23:9: 23:42}`, completing the cycle -note: cycle used when elaborating drops for `<impl at $DIR/indirect-recursion-issue-112047.rs:19:1: 19:18>::recur` - --> $DIR/indirect-recursion-issue-112047.rs:22:5 + = note: ...which requires computing layout of `core::mem::maybe_uninit::MaybeUninit<{async block@$DIR/indirect-recursion-issue-112047.rs:22:9: 22:42}>`... + = note: ...which requires computing layout of `core::mem::manually_drop::ManuallyDrop<{async block@$DIR/indirect-recursion-issue-112047.rs:22:9: 22:42}>`... + = note: ...which again requires computing layout of `{async block@$DIR/indirect-recursion-issue-112047.rs:22:9: 22:42}`, completing the cycle +note: cycle used when elaborating drops for `<impl at $DIR/indirect-recursion-issue-112047.rs:18:1: 18:18>::recur` + --> $DIR/indirect-recursion-issue-112047.rs:21:5 | LL | fn recur(self) -> Self::Recur { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/where-clauses/higher-ranked-fn-type.verbose.stderr b/tests/ui/where-clauses/higher-ranked-fn-type.verbose.stderr index 54afeaa7eda..782e7dc5e00 100644 --- a/tests/ui/where-clauses/higher-ranked-fn-type.verbose.stderr +++ b/tests/ui/where-clauses/higher-ranked-fn-type.verbose.stderr @@ -1,8 +1,8 @@ -error[E0277]: the trait bound `for<Region(BrNamed(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b), 'b))> fn(&ReLateBound(DebruijnIndex(1), BoundRegion { var: 0, kind: BrNamed(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b), 'b) }) ()): Foo` is not satisfied +error[E0277]: the trait bound `for<Region(BrNamed(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b), 'b))> fn(&ReBound(DebruijnIndex(1), BoundRegion { var: 0, kind: BrNamed(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b), 'b) }) ()): Foo` is not satisfied --> $DIR/higher-ranked-fn-type.rs:20:5 | LL | called() - | ^^^^^^ the trait `for<Region(BrNamed(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b), 'b))> Foo` is not implemented for `fn(&ReLateBound(DebruijnIndex(1), BoundRegion { var: 0, kind: BrNamed(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b), 'b) }) ())` + | ^^^^^^ the trait `for<Region(BrNamed(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b), 'b))> Foo` is not implemented for `fn(&ReBound(DebruijnIndex(1), BoundRegion { var: 0, kind: BrNamed(DefId(0:6 ~ higher_ranked_fn_type[9e51]::called::'b), 'b) }) ())` | help: this trait has no implementations, consider adding one --> $DIR/higher-ranked-fn-type.rs:6:1 |