diff options
822 files changed, 13667 insertions, 7576 deletions
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index e92afc14c20..dc8ac539a3a 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -182,6 +182,11 @@ jobs: - name: install MinGW run: src/ci/scripts/install-mingw.sh + # Workaround for spurious ci failures after mingw install + # see https://rust-lang.zulipchat.com/#narrow/channel/242791-t-infra/topic/Spurious.20bors.20CI.20failures/near/528915775 + - name: ensure home dir exists + run: mkdir -p ~ + - name: install ninja run: src/ci/scripts/install-ninja.sh diff --git a/Cargo.lock b/Cargo.lock index b8a8d7b7d23..7d2fca8bb3f 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -3136,9 +3136,9 @@ checksum = "357703d41365b4b27c590e3ed91eabb1b663f07c4c084095e60cbed4362dff0d" [[package]] name = "rustc-literal-escaper" -version = "0.0.4" +version = "0.0.5" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ab03008eb631b703dd16978282ae36c73282e7922fe101a4bd072a40ecea7b8b" +checksum = "e4ee29da77c5a54f42697493cd4c9b9f31b74df666a6c04dfc4fde77abe0438b" [[package]] name = "rustc-main" diff --git a/compiler/rustc_ast/Cargo.toml b/compiler/rustc_ast/Cargo.toml index 5de2e69072f..155e14a3796 100644 --- a/compiler/rustc_ast/Cargo.toml +++ b/compiler/rustc_ast/Cargo.toml @@ -7,7 +7,7 @@ edition = "2024" # tidy-alphabetical-start bitflags = "2.4.1" memchr = "2.7.4" -rustc-literal-escaper = "0.0.4" +rustc-literal-escaper = "0.0.5" rustc_ast_ir = { path = "../rustc_ast_ir" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_index = { path = "../rustc_index" } diff --git a/compiler/rustc_ast/src/ast.rs b/compiler/rustc_ast/src/ast.rs index 3c576316f62..8c2b521c560 100644 --- a/compiler/rustc_ast/src/ast.rs +++ b/compiler/rustc_ast/src/ast.rs @@ -18,7 +18,7 @@ //! - [`Attribute`]: Metadata associated with item. //! - [`UnOp`], [`BinOp`], and [`BinOpKind`]: Unary and binary operators. -use std::borrow::Cow; +use std::borrow::{Borrow, Cow}; use std::{cmp, fmt}; pub use GenericArgs::*; @@ -155,6 +155,59 @@ impl Path { } } +/// Joins multiple symbols with "::" into a path, e.g. "a::b::c". If the first +/// segment is `kw::PathRoot` it will be printed as empty, e.g. "::b::c". +/// +/// The generics on the `path` argument mean it can accept many forms, such as: +/// - `&[Symbol]` +/// - `Vec<Symbol>` +/// - `Vec<&Symbol>` +/// - `impl Iterator<Item = Symbol>` +/// - `impl Iterator<Item = &Symbol>` +/// +/// Panics if `path` is empty or a segment after the first is `kw::PathRoot`. +pub fn join_path_syms(path: impl IntoIterator<Item = impl Borrow<Symbol>>) -> String { + // This is a guess at the needed capacity that works well in practice. It is slightly faster + // than (a) starting with an empty string, or (b) computing the exact capacity required. + // `8` works well because it's about the right size and jemalloc's size classes are all + // multiples of 8. + let mut iter = path.into_iter(); + let len_hint = iter.size_hint().1.unwrap_or(1); + let mut s = String::with_capacity(len_hint * 8); + + let first_sym = *iter.next().unwrap().borrow(); + if first_sym != kw::PathRoot { + s.push_str(first_sym.as_str()); + } + for sym in iter { + let sym = *sym.borrow(); + debug_assert_ne!(sym, kw::PathRoot); + s.push_str("::"); + s.push_str(sym.as_str()); + } + s +} + +/// Like `join_path_syms`, but for `Ident`s. This function is necessary because +/// `Ident::to_string` does more than just print the symbol in the `name` field. +pub fn join_path_idents(path: impl IntoIterator<Item = impl Borrow<Ident>>) -> String { + let mut iter = path.into_iter(); + let len_hint = iter.size_hint().1.unwrap_or(1); + let mut s = String::with_capacity(len_hint * 8); + + let first_ident = *iter.next().unwrap().borrow(); + if first_ident.name != kw::PathRoot { + s.push_str(&first_ident.to_string()); + } + for ident in iter { + let ident = *ident.borrow(); + debug_assert_ne!(ident.name, kw::PathRoot); + s.push_str("::"); + s.push_str(&ident.to_string()); + } + s +} + /// A segment of a path: an identifier, an optional lifetime, and a set of types. /// /// E.g., `std`, `String` or `Box<T>`. @@ -3637,6 +3690,7 @@ impl Default for FnHeader { #[derive(Clone, Encodable, Decodable, Debug)] pub struct Trait { + pub constness: Const, pub safety: Safety, pub is_auto: IsAuto, pub ident: Ident, diff --git a/compiler/rustc_ast/src/util/literal.rs b/compiler/rustc_ast/src/util/literal.rs index fa7878873e5..2dfd695d880 100644 --- a/compiler/rustc_ast/src/util/literal.rs +++ b/compiler/rustc_ast/src/util/literal.rs @@ -126,11 +126,11 @@ impl LitKind { token::CStr => { let s = symbol.as_str(); let mut buf = Vec::with_capacity(s.len()); - unescape_c_str(s, |_span, c| match c { + unescape_c_str(s, |_span, res| match res { Ok(MixedUnit::Char(c)) => { - buf.extend_from_slice(c.encode_utf8(&mut [0; 4]).as_bytes()) + buf.extend_from_slice(c.get().encode_utf8(&mut [0; 4]).as_bytes()) } - Ok(MixedUnit::HighByte(b)) => buf.push(b), + Ok(MixedUnit::HighByte(b)) => buf.push(b.get()), Err(err) => { assert!(!err.is_fatal(), "failed to unescape C string literal") } diff --git a/compiler/rustc_ast/src/visit.rs b/compiler/rustc_ast/src/visit.rs index 37fcc0d2167..a344f23c345 100644 --- a/compiler/rustc_ast/src/visit.rs +++ b/compiler/rustc_ast/src/visit.rs @@ -738,7 +738,8 @@ macro_rules! common_visitor_and_walkers { try_visit!(vis.visit_ty(self_ty)); visit_assoc_items(vis, items, AssocCtxt::Impl { of_trait: of_trait.is_some() }) } - ItemKind::Trait(box Trait { safety, is_auto: _, ident, generics, bounds, items }) => { + ItemKind::Trait(box Trait { constness, safety, is_auto: _, ident, generics, bounds, items }) => { + try_visit!(visit_constness(vis, constness)); try_visit!(visit_safety(vis, safety)); try_visit!(vis.visit_ident(ident)); try_visit!(vis.visit_generics(generics)); diff --git a/compiler/rustc_ast_lowering/src/item.rs b/compiler/rustc_ast_lowering/src/item.rs index 9d40a7386f6..abd70c7517c 100644 --- a/compiler/rustc_ast_lowering/src/item.rs +++ b/compiler/rustc_ast_lowering/src/item.rs @@ -417,7 +417,16 @@ impl<'hir> LoweringContext<'_, 'hir> { items: new_impl_items, })) } - ItemKind::Trait(box Trait { is_auto, safety, ident, generics, bounds, items }) => { + ItemKind::Trait(box Trait { + constness, + is_auto, + safety, + ident, + generics, + bounds, + items, + }) => { + let constness = self.lower_constness(*constness); let ident = self.lower_ident(*ident); let (generics, (safety, items, bounds)) = self.lower_generics( generics, @@ -435,7 +444,7 @@ impl<'hir> LoweringContext<'_, 'hir> { (safety, items, bounds) }, ); - hir::ItemKind::Trait(*is_auto, safety, ident, generics, bounds, items) + hir::ItemKind::Trait(constness, *is_auto, safety, ident, generics, bounds, items) } ItemKind::TraitAlias(ident, generics, bounds) => { let ident = self.lower_ident(*ident); diff --git a/compiler/rustc_ast_passes/messages.ftl b/compiler/rustc_ast_passes/messages.ftl index c5780c957c9..e419154d65d 100644 --- a/compiler/rustc_ast_passes/messages.ftl +++ b/compiler/rustc_ast_passes/messages.ftl @@ -240,10 +240,10 @@ ast_passes_static_without_body = ast_passes_tilde_const_disallowed = `[const]` is not allowed here .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 + .trait = this trait is not `const`, so it cannot have `[const]` trait bounds .trait_impl = this impl is not `const`, so it cannot have `[const]` trait bounds .impl = inherent impls cannot have `[const]` trait bounds - .trait_assoc_ty = associated types in non-`#[const_trait]` traits cannot have `[const]` trait bounds + .trait_assoc_ty = associated types in non-`const` traits cannot have `[const]` trait bounds .trait_impl_assoc_ty = associated types in non-const impls cannot have `[const]` trait bounds .inherent_assoc_ty = inherent associated types cannot have `[const]` trait bounds .object = trait objects cannot have `[const]` trait bounds diff --git a/compiler/rustc_ast_passes/src/ast_validation.rs b/compiler/rustc_ast_passes/src/ast_validation.rs index 38889d28151..c69250c0305 100644 --- a/compiler/rustc_ast_passes/src/ast_validation.rs +++ b/compiler/rustc_ast_passes/src/ast_validation.rs @@ -49,14 +49,14 @@ enum SelfSemantic { } enum TraitOrTraitImpl { - Trait { span: Span, constness_span: Option<Span> }, + Trait { span: Span, constness: Const }, TraitImpl { constness: Const, polarity: ImplPolarity, trait_ref_span: Span }, } impl TraitOrTraitImpl { fn constness(&self) -> Option<Span> { match self { - Self::Trait { constness_span: Some(span), .. } + Self::Trait { constness: Const::Yes(span), .. } | Self::TraitImpl { constness: Const::Yes(span), .. } => Some(*span), _ => None, } @@ -110,15 +110,10 @@ impl<'a> AstValidator<'a> { self.outer_trait_or_trait_impl = old; } - fn with_in_trait( - &mut self, - span: Span, - constness_span: Option<Span>, - f: impl FnOnce(&mut Self), - ) { + fn with_in_trait(&mut self, span: Span, constness: Const, f: impl FnOnce(&mut Self)) { let old = mem::replace( &mut self.outer_trait_or_trait_impl, - Some(TraitOrTraitImpl::Trait { span, constness_span }), + Some(TraitOrTraitImpl::Trait { span, constness }), ); f(self); self.outer_trait_or_trait_impl = old; @@ -273,7 +268,7 @@ impl<'a> AstValidator<'a> { }; let make_trait_const_sugg = if const_trait_impl - && let TraitOrTraitImpl::Trait { span, constness_span: None } = parent + && let TraitOrTraitImpl::Trait { span, constness: ast::Const::No } = parent { Some(span.shrink_to_lo()) } else { @@ -1131,10 +1126,23 @@ impl<'a> Visitor<'a> for AstValidator<'a> { } visit::walk_item(self, item) } - ItemKind::Trait(box Trait { is_auto, generics, ident, bounds, items, .. }) => { + ItemKind::Trait(box Trait { + constness, + is_auto, + generics, + ident, + bounds, + items, + .. + }) => { self.visit_attrs_vis_ident(&item.attrs, &item.vis, ident); - let is_const_trait = + // FIXME(const_trait_impl) remove this + let alt_const_trait_span = attr::find_by_name(&item.attrs, sym::const_trait).map(|attr| attr.span); + let constness = match (*constness, alt_const_trait_span) { + (Const::Yes(span), _) | (Const::No, Some(span)) => Const::Yes(span), + (Const::No, None) => Const::No, + }; if *is_auto == IsAuto::Yes { // Auto traits cannot have generics, super traits nor contain items. self.deny_generic_params(generics, ident.span); @@ -1145,13 +1153,13 @@ impl<'a> Visitor<'a> for AstValidator<'a> { // Equivalent of `visit::walk_item` for `ItemKind::Trait` that inserts a bound // context for the supertraits. - let disallowed = - is_const_trait.is_none().then(|| TildeConstReason::Trait { span: item.span }); + let disallowed = matches!(constness, ast::Const::No) + .then(|| TildeConstReason::Trait { span: item.span }); self.with_tilde_const(disallowed, |this| { this.visit_generics(generics); walk_list!(this, visit_param_bound, bounds, BoundKind::SuperTraits) }); - self.with_in_trait(item.span, is_const_trait, |this| { + self.with_in_trait(item.span, constness, |this| { walk_list!(this, visit_assoc_item, items, AssocCtxt::Trait); }); } diff --git a/compiler/rustc_ast_passes/src/errors.rs b/compiler/rustc_ast_passes/src/errors.rs index 3b2730d4ff9..c1ebd025c7a 100644 --- a/compiler/rustc_ast_passes/src/errors.rs +++ b/compiler/rustc_ast_passes/src/errors.rs @@ -590,7 +590,7 @@ pub(crate) struct ConstBoundTraitObject { } // FIXME(const_trait_impl): Consider making the note/reason the message of the diagnostic. -// FIXME(const_trait_impl): Provide structured suggestions (e.g., add `const` / `#[const_trait]` here). +// FIXME(const_trait_impl): Provide structured suggestions (e.g., add `const` here). #[derive(Diagnostic)] #[diag(ast_passes_tilde_const_disallowed)] pub(crate) struct TildeConstDisallowed { diff --git a/compiler/rustc_ast_pretty/src/pprust/state/item.rs b/compiler/rustc_ast_pretty/src/pprust/state/item.rs index 6c442553976..11c97a552c6 100644 --- a/compiler/rustc_ast_pretty/src/pprust/state/item.rs +++ b/compiler/rustc_ast_pretty/src/pprust/state/item.rs @@ -357,6 +357,7 @@ impl<'a> State<'a> { self.bclose(item.span, empty, cb); } ast::ItemKind::Trait(box ast::Trait { + constness, safety, is_auto, ident, @@ -366,6 +367,7 @@ impl<'a> State<'a> { }) => { let (cb, ib) = self.head(""); self.print_visibility(&item.vis); + self.print_constness(*constness); self.print_safety(*safety); self.print_is_auto(*is_auto); self.word_nbsp("trait"); diff --git a/compiler/rustc_attr_data_structures/src/attributes.rs b/compiler/rustc_attr_data_structures/src/attributes.rs index 3dedeb1b372..3157b18b635 100644 --- a/compiler/rustc_attr_data_structures/src/attributes.rs +++ b/compiler/rustc_attr_data_structures/src/attributes.rs @@ -110,6 +110,22 @@ pub enum DeprecatedSince { Err, } +#[derive( + Copy, + Debug, + Eq, + PartialEq, + Encodable, + Decodable, + Clone, + HashStable_Generic, + PrintAttribute +)] +pub enum CoverageStatus { + On, + Off, +} + impl Deprecation { /// Whether an item marked with #[deprecated(since = "X")] is currently /// deprecated (i.e., whether X is not greater than the current rustc @@ -274,6 +290,9 @@ pub enum AttributeKind { /// Represents `#[const_trait]`. ConstTrait(Span), + /// Represents `#[coverage]`. + Coverage(Span, CoverageStatus), + ///Represents `#[rustc_deny_explicit_impl]`. DenyExplicitImpl(Span), @@ -420,6 +439,9 @@ pub enum AttributeKind { /// Represents `#[rustc_unsafe_specialization_marker]`. UnsafeSpecializationMarker(Span), + /// Represents `#[unstable_feature_bound]`. + UnstableFeatureBound(ThinVec<(Symbol, Span)>), + /// Represents `#[used]` Used { used_by: UsedBy, span: Span }, // tidy-alphabetical-end diff --git a/compiler/rustc_attr_data_structures/src/encode_cross_crate.rs b/compiler/rustc_attr_data_structures/src/encode_cross_crate.rs index 3e2dc0a15b2..8a3eb2ac845 100644 --- a/compiler/rustc_attr_data_structures/src/encode_cross_crate.rs +++ b/compiler/rustc_attr_data_structures/src/encode_cross_crate.rs @@ -28,6 +28,7 @@ impl AttributeKind { ConstStability { .. } => Yes, ConstStabilityIndirect => No, ConstTrait(..) => No, + Coverage(..) => No, DenyExplicitImpl(..) => No, Deprecation { .. } => Yes, DoNotImplementViaObject(..) => No, @@ -71,6 +72,7 @@ impl AttributeKind { TrackCaller(..) => Yes, TypeConst(..) => Yes, UnsafeSpecializationMarker(..) => No, + UnstableFeatureBound(..) => No, Used { .. } => No, // tidy-alphabetical-end } diff --git a/compiler/rustc_attr_parsing/messages.ftl b/compiler/rustc_attr_parsing/messages.ftl index 8d0ead63a8d..35ff48cb5f2 100644 --- a/compiler/rustc_attr_parsing/messages.ftl +++ b/compiler/rustc_attr_parsing/messages.ftl @@ -136,6 +136,9 @@ attr_parsing_unrecognized_repr_hint = attr_parsing_unstable_cfg_target_compact = compact `cfg(target(..))` is experimental and subject to change +attr_parsing_unstable_feature_bound_incompatible_stability = Item annotated with `#[unstable_feature_bound]` should not be stable + .help = If this item is meant to be stable, do not use any functions annotated with `#[unstable_feature_bound]`. Otherwise, mark this item as unstable with `#[unstable]` + attr_parsing_unsupported_literal_cfg_boolean = literal in `cfg` predicate value must be a boolean attr_parsing_unsupported_literal_cfg_string = diff --git a/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs b/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs index 1c51c3eee4e..a6bd2306ec5 100644 --- a/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs +++ b/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs @@ -27,6 +27,26 @@ impl<S: Stage> CombineAttributeParser<S> for AllowInternalUnstableParser { } } +pub(crate) struct UnstableFeatureBoundParser; +impl<S: Stage> CombineAttributeParser<S> for UnstableFeatureBoundParser { + const PATH: &'static [rustc_span::Symbol] = &[sym::unstable_feature_bound]; + type Item = (Symbol, Span); + const CONVERT: ConvertFn<Self::Item> = |items, _| AttributeKind::UnstableFeatureBound(items); + const TEMPLATE: AttributeTemplate = template!(Word, List: "feat1, feat2, ..."); + + fn extend<'c>( + cx: &'c mut AcceptContext<'_, '_, S>, + args: &'c ArgParser<'_>, + ) -> impl IntoIterator<Item = Self::Item> { + if !cx.features().staged_api() { + cx.emit_err(session_diagnostics::StabilityOutsideStd { span: cx.attr_span }); + } + parse_unstable(cx, args, <Self as CombineAttributeParser<S>>::PATH[0]) + .into_iter() + .zip(iter::repeat(cx.attr_span)) + } +} + pub(crate) struct AllowConstFnUnstableParser; impl<S: Stage> CombineAttributeParser<S> for AllowConstFnUnstableParser { const PATH: &[Symbol] = &[sym::rustc_allow_const_fn_unstable]; diff --git a/compiler/rustc_attr_parsing/src/attributes/cfg.rs b/compiler/rustc_attr_parsing/src/attributes/cfg.rs index a56855b3bd3..6373cf6e08a 100644 --- a/compiler/rustc_attr_parsing/src/attributes/cfg.rs +++ b/compiler/rustc_attr_parsing/src/attributes/cfg.rs @@ -9,7 +9,7 @@ use rustc_session::parse::feature_err; use rustc_span::{Span, Symbol, sym}; use thin_vec::ThinVec; -use crate::context::{AcceptContext, Stage}; +use crate::context::{AcceptContext, ShouldEmit, Stage}; use crate::parser::{ArgParser, MetaItemListParser, MetaItemOrLitParser, NameValueParser}; use crate::{ CfgMatchesLintEmitter, fluent_generated, parse_version, session_diagnostics, try_gate_cfg, @@ -90,7 +90,7 @@ fn parse_cfg_entry_version<S: Stage>( list: &MetaItemListParser<'_>, meta_span: Span, ) -> Option<CfgEntry> { - try_gate_cfg(sym::version, meta_span, cx.sess(), Some(cx.features())); + try_gate_cfg(sym::version, meta_span, cx.sess(), cx.features_option()); let Some(version) = list.single() else { cx.emit_err(session_diagnostics::ExpectedSingleVersionLiteral { span: list.span }); return None; @@ -119,7 +119,9 @@ fn parse_cfg_entry_target<S: Stage>( list: &MetaItemListParser<'_>, meta_span: Span, ) -> Option<CfgEntry> { - if !cx.features().cfg_target_compact() { + if let Some(features) = cx.features_option() + && !features.cfg_target_compact() + { feature_err( cx.sess(), sym::cfg_target_compact, @@ -186,12 +188,13 @@ pub fn eval_config_entry( cfg_entry: &CfgEntry, id: NodeId, features: Option<&Features>, + emit_lints: ShouldEmit, ) -> EvalConfigResult { match cfg_entry { CfgEntry::All(subs, ..) => { let mut all = None; for sub in subs { - let res = eval_config_entry(sess, sub, id, features); + let res = eval_config_entry(sess, sub, id, features, emit_lints); // We cannot short-circuit because `eval_config_entry` emits some lints if !res.as_bool() { all.get_or_insert(res); @@ -202,7 +205,7 @@ pub fn eval_config_entry( CfgEntry::Any(subs, span) => { let mut any = None; for sub in subs { - let res = eval_config_entry(sess, sub, id, features); + let res = eval_config_entry(sess, sub, id, features, emit_lints); // We cannot short-circuit because `eval_config_entry` emits some lints if res.as_bool() { any.get_or_insert(res); @@ -214,7 +217,7 @@ pub fn eval_config_entry( }) } CfgEntry::Not(sub, span) => { - if eval_config_entry(sess, sub, id, features).as_bool() { + if eval_config_entry(sess, sub, id, features, emit_lints).as_bool() { EvalConfigResult::False { reason: cfg_entry.clone(), reason_span: *span } } else { EvalConfigResult::True @@ -228,24 +231,28 @@ pub fn eval_config_entry( } } CfgEntry::NameValue { name, name_span, value, span } => { - match sess.psess.check_config.expecteds.get(name) { - Some(ExpectedValues::Some(values)) if !values.contains(&value.map(|(v, _)| v)) => { - id.emit_span_lint( - sess, - UNEXPECTED_CFGS, - *span, - BuiltinLintDiag::UnexpectedCfgValue((*name, *name_span), *value), - ); + if let ShouldEmit::ErrorsAndLints = emit_lints { + match sess.psess.check_config.expecteds.get(name) { + Some(ExpectedValues::Some(values)) + if !values.contains(&value.map(|(v, _)| v)) => + { + id.emit_span_lint( + sess, + UNEXPECTED_CFGS, + *span, + BuiltinLintDiag::UnexpectedCfgValue((*name, *name_span), *value), + ); + } + None if sess.psess.check_config.exhaustive_names => { + id.emit_span_lint( + sess, + UNEXPECTED_CFGS, + *span, + BuiltinLintDiag::UnexpectedCfgName((*name, *name_span), *value), + ); + } + _ => { /* not unexpected */ } } - None if sess.psess.check_config.exhaustive_names => { - id.emit_span_lint( - sess, - UNEXPECTED_CFGS, - *span, - BuiltinLintDiag::UnexpectedCfgName((*name, *name_span), *value), - ); - } - _ => { /* not unexpected */ } } if sess.psess.config.contains(&(*name, value.map(|(v, _)| v))) { diff --git a/compiler/rustc_attr_parsing/src/attributes/codegen_attrs.rs b/compiler/rustc_attr_parsing/src/attributes/codegen_attrs.rs index 34d9b048348..3e542771d58 100644 --- a/compiler/rustc_attr_parsing/src/attributes/codegen_attrs.rs +++ b/compiler/rustc_attr_parsing/src/attributes/codegen_attrs.rs @@ -1,4 +1,4 @@ -use rustc_attr_data_structures::{AttributeKind, OptimizeAttr, UsedBy}; +use rustc_attr_data_structures::{AttributeKind, CoverageStatus, OptimizeAttr, UsedBy}; use rustc_feature::{AttributeTemplate, template}; use rustc_session::parse::feature_err; use rustc_span::{Span, Symbol, sym}; @@ -52,6 +52,45 @@ impl<S: Stage> NoArgsAttributeParser<S> for ColdParser { const CREATE: fn(Span) -> AttributeKind = AttributeKind::Cold; } +pub(crate) struct CoverageParser; + +impl<S: Stage> SingleAttributeParser<S> for CoverageParser { + const PATH: &[Symbol] = &[sym::coverage]; + const ATTRIBUTE_ORDER: AttributeOrder = AttributeOrder::KeepOutermost; + const ON_DUPLICATE: OnDuplicate<S> = OnDuplicate::Error; + const TEMPLATE: AttributeTemplate = template!(OneOf: &[sym::off, sym::on]); + + fn convert(cx: &mut AcceptContext<'_, '_, S>, args: &ArgParser<'_>) -> Option<AttributeKind> { + let Some(args) = args.list() else { + cx.expected_specific_argument_and_list(cx.attr_span, vec!["on", "off"]); + return None; + }; + + let Some(arg) = args.single() else { + cx.expected_single_argument(args.span); + return None; + }; + + let fail_incorrect_argument = |span| cx.expected_specific_argument(span, vec!["on", "off"]); + + let Some(arg) = arg.meta_item() else { + fail_incorrect_argument(args.span); + return None; + }; + + let status = match arg.path().word_sym() { + Some(sym::off) => CoverageStatus::Off, + Some(sym::on) => CoverageStatus::On, + None | Some(_) => { + fail_incorrect_argument(arg.span()); + return None; + } + }; + + Some(AttributeKind::Coverage(cx.attr_span, status)) + } +} + pub(crate) struct ExportNameParser; impl<S: Stage> SingleAttributeParser<S> for ExportNameParser { diff --git a/compiler/rustc_attr_parsing/src/attributes/stability.rs b/compiler/rustc_attr_parsing/src/attributes/stability.rs index 6bccd0042a8..8f405e5aad9 100644 --- a/compiler/rustc_attr_parsing/src/attributes/stability.rs +++ b/compiler/rustc_attr_parsing/src/attributes/stability.rs @@ -98,6 +98,16 @@ impl<S: Stage> AttributeParser<S> for StabilityParser { } } + if let Some((Stability { level: StabilityLevel::Stable { .. }, .. }, _)) = self.stability { + for other_attr in cx.all_attrs { + if other_attr.word_is(sym::unstable_feature_bound) { + cx.emit_err(session_diagnostics::UnstableFeatureBoundIncompatibleStability { + span: cx.target_span, + }); + } + } + } + let (stability, span) = self.stability?; Some(AttributeKind::Stability { stability, span }) diff --git a/compiler/rustc_attr_parsing/src/attributes/traits.rs b/compiler/rustc_attr_parsing/src/attributes/traits.rs index d5e088effd5..e69a533699b 100644 --- a/compiler/rustc_attr_parsing/src/attributes/traits.rs +++ b/compiler/rustc_attr_parsing/src/attributes/traits.rs @@ -91,6 +91,7 @@ impl<S: Stage> NoArgsAttributeParser<S> for DoNotImplementViaObjectParser { const CREATE: fn(Span) -> AttributeKind = AttributeKind::DoNotImplementViaObject; } +// FIXME(const_trait_impl): remove this // Const traits pub(crate) struct ConstTraitParser; diff --git a/compiler/rustc_attr_parsing/src/context.rs b/compiler/rustc_attr_parsing/src/context.rs index 567341d1517..4d692d9562c 100644 --- a/compiler/rustc_attr_parsing/src/context.rs +++ b/compiler/rustc_attr_parsing/src/context.rs @@ -13,10 +13,13 @@ use rustc_hir::{AttrArgs, AttrItem, AttrPath, Attribute, HashIgnoredAttrId, HirI use rustc_session::Session; use rustc_span::{DUMMY_SP, ErrorGuaranteed, Span, Symbol, sym}; -use crate::attributes::allow_unstable::{AllowConstFnUnstableParser, AllowInternalUnstableParser}; +use crate::attributes::allow_unstable::{ + AllowConstFnUnstableParser, AllowInternalUnstableParser, UnstableFeatureBoundParser, +}; use crate::attributes::codegen_attrs::{ - ColdParser, ExportNameParser, NakedParser, NoMangleParser, OmitGdbPrettyPrinterSectionParser, - OptimizeParser, TargetFeatureParser, TrackCallerParser, UsedParser, + ColdParser, CoverageParser, ExportNameParser, NakedParser, NoMangleParser, + OmitGdbPrettyPrinterSectionParser, OptimizeParser, TargetFeatureParser, TrackCallerParser, + UsedParser, }; use crate::attributes::confusables::ConfusablesParser; use crate::attributes::deprecation::DeprecationParser; @@ -133,9 +136,11 @@ attribute_parsers!( Combine<AllowInternalUnstableParser>, Combine<ReprParser>, Combine<TargetFeatureParser>, + Combine<UnstableFeatureBoundParser>, // tidy-alphabetical-end // tidy-alphabetical-start + Single<CoverageParser>, Single<DeprecationParser>, Single<DummyParser>, Single<ExportNameParser>, @@ -223,7 +228,7 @@ impl Stage for Early { sess: &'sess Session, diag: impl for<'x> Diagnostic<'x>, ) -> ErrorGuaranteed { - if self.emit_errors { + if self.emit_errors.should_emit() { sess.dcx().emit_err(diag) } else { sess.dcx().create_err(diag).delay_as_bug() @@ -254,7 +259,7 @@ pub struct Early { /// Whether to emit errors or delay them as a bug /// For most attributes, the attribute will be parsed again in the `Late` stage and in this case the errors should be delayed /// But for some, such as `cfg`, the attribute will be removed before the `Late` stage so errors must be emitted - pub emit_errors: bool, + pub emit_errors: ShouldEmit, } /// used when parsing attributes during ast lowering pub struct Late; @@ -449,6 +454,25 @@ impl<'f, 'sess: 'f, S: Stage> AcceptContext<'f, 'sess, S> { reason: AttributeParseErrorReason::ExpectedSpecificArgument { possibilities, strings: false, + list: false, + }, + }) + } + + pub(crate) fn expected_specific_argument_and_list( + &self, + span: Span, + possibilities: Vec<&'static str>, + ) -> ErrorGuaranteed { + self.emit_err(AttributeParseError { + span, + attr_span: self.attr_span, + template: self.template.clone(), + attribute: self.attr_path.clone(), + reason: AttributeParseErrorReason::ExpectedSpecificArgument { + possibilities, + strings: false, + list: true, }, }) } @@ -466,6 +490,7 @@ impl<'f, 'sess: 'f, S: Stage> AcceptContext<'f, 'sess, S> { reason: AttributeParseErrorReason::ExpectedSpecificArgument { possibilities, strings: true, + list: false, }, }) } @@ -555,6 +580,25 @@ pub enum OmitDoc { Skip, } +#[derive(Copy, Clone)] +pub enum ShouldEmit { + /// The operation will emit errors and lints. + /// This is usually what you need. + ErrorsAndLints, + /// The operation will emit *not* errors and lints. + /// Use this if you are *sure* that this operation will be called at a different time with `ShouldEmit::Emit`. + Nothing, +} + +impl ShouldEmit { + pub fn should_emit(&self) -> bool { + match self { + ShouldEmit::ErrorsAndLints => true, + ShouldEmit::Nothing => false, + } + } +} + /// Context created once, for example as part of the ast lowering /// context, through which all attributes can be lowered. pub struct AttributeParser<'sess, S: Stage = Late> { @@ -597,7 +641,7 @@ impl<'sess> AttributeParser<'sess, Early> { tools: Vec::new(), parse_only: Some(sym), sess, - stage: Early { emit_errors: false }, + stage: Early { emit_errors: ShouldEmit::Nothing }, }; let mut parsed = p.parse_attribute_list( attrs, @@ -620,7 +664,7 @@ impl<'sess> AttributeParser<'sess, Early> { target_span: Span, target_node_id: NodeId, features: Option<&'sess Features>, - emit_errors: bool, + emit_errors: ShouldEmit, parse_fn: fn(cx: &mut AcceptContext<'_, '_, Early>, item: &ArgParser<'_>) -> T, template: &AttributeTemplate, ) -> T { diff --git a/compiler/rustc_attr_parsing/src/lib.rs b/compiler/rustc_attr_parsing/src/lib.rs index 2102a26108b..dc54cb6b840 100644 --- a/compiler/rustc_attr_parsing/src/lib.rs +++ b/compiler/rustc_attr_parsing/src/lib.rs @@ -95,7 +95,7 @@ pub use attributes::cfg_old::*; pub use attributes::util::{ find_crate_name, is_builtin_attr, is_doc_alias_attrs_contain_symbol, parse_version, }; -pub use context::{AttributeParser, Early, Late, OmitDoc}; +pub use context::{AttributeParser, Early, Late, OmitDoc, ShouldEmit}; pub use lints::emit_attribute_lint; rustc_fluent_macro::fluent_messages! { "../messages.ftl" } diff --git a/compiler/rustc_attr_parsing/src/session_diagnostics.rs b/compiler/rustc_attr_parsing/src/session_diagnostics.rs index 97bf3d1c549..9a400e0fe10 100644 --- a/compiler/rustc_attr_parsing/src/session_diagnostics.rs +++ b/compiler/rustc_attr_parsing/src/session_diagnostics.rs @@ -504,6 +504,14 @@ pub(crate) struct UnrecognizedReprHint { } #[derive(Diagnostic)] +#[diag(attr_parsing_unstable_feature_bound_incompatible_stability)] +#[help] +pub(crate) struct UnstableFeatureBoundIncompatibleStability { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] #[diag(attr_parsing_naked_functions_incompatible_attribute, code = E0736)] pub(crate) struct NakedFunctionIncompatibleAttribute { #[primary_span] @@ -525,7 +533,9 @@ pub(crate) struct LinkOrdinalOutOfRange { pub(crate) enum AttributeParseErrorReason { ExpectedNoArgs, - ExpectedStringLiteral { byte_string: Option<Span> }, + ExpectedStringLiteral { + byte_string: Option<Span>, + }, ExpectedIntegerLiteral, ExpectedAtLeastOneArgument, ExpectedSingleArgument, @@ -533,7 +543,12 @@ pub(crate) enum AttributeParseErrorReason { UnexpectedLiteral, ExpectedNameValue(Option<Symbol>), DuplicateKey(Symbol), - ExpectedSpecificArgument { possibilities: Vec<&'static str>, strings: bool }, + ExpectedSpecificArgument { + possibilities: Vec<&'static str>, + strings: bool, + /// Should we tell the user to write a list when they didn't? + list: bool, + }, } pub(crate) struct AttributeParseError { @@ -607,7 +622,11 @@ impl<'a, G: EmissionGuarantee> Diagnostic<'a, G> for AttributeParseError { format!("expected this to be of the form `{name} = \"...\"`"), ); } - AttributeParseErrorReason::ExpectedSpecificArgument { possibilities, strings } => { + AttributeParseErrorReason::ExpectedSpecificArgument { + possibilities, + strings, + list: false, + } => { let quote = if strings { '"' } else { '`' }; match possibilities.as_slice() { &[] => {} @@ -633,6 +652,38 @@ impl<'a, G: EmissionGuarantee> Diagnostic<'a, G> for AttributeParseError { } } } + AttributeParseErrorReason::ExpectedSpecificArgument { + possibilities, + strings, + list: true, + } => { + let quote = if strings { '"' } else { '`' }; + match possibilities.as_slice() { + &[] => {} + &[x] => { + diag.span_label( + self.span, + format!( + "this attribute is only valid with {quote}{x}{quote} as an argument" + ), + ); + } + [first, second] => { + diag.span_label(self.span, format!("this attribute is only valid with either {quote}{first}{quote} or {quote}{second}{quote} as an argument")); + } + [first @ .., second_to_last, last] => { + let mut res = String::new(); + for i in first { + res.push_str(&format!("{quote}{i}{quote}, ")); + } + res.push_str(&format!( + "{quote}{second_to_last}{quote} or {quote}{last}{quote}" + )); + + diag.span_label(self.span, format!("this attribute is only valid with one of the following arguments: {res}")); + } + } + } } let suggestions = self.template.suggestions(false, &name); diff --git a/compiler/rustc_borrowck/src/type_check/constraint_conversion.rs b/compiler/rustc_borrowck/src/type_check/constraint_conversion.rs index ca636a8c999..9bb96b94506 100644 --- a/compiler/rustc_borrowck/src/type_check/constraint_conversion.rs +++ b/compiler/rustc_borrowck/src/type_check/constraint_conversion.rs @@ -1,3 +1,4 @@ +use rustc_data_structures::fx::FxHashSet; use rustc_hir::def_id::LocalDefId; use rustc_infer::infer::canonical::QueryRegionConstraints; use rustc_infer::infer::outlives::env::RegionBoundPairs; @@ -7,7 +8,7 @@ use rustc_infer::infer::{InferCtxt, SubregionOrigin}; use rustc_infer::traits::query::type_op::DeeplyNormalize; use rustc_middle::bug; use rustc_middle::ty::{ - self, GenericArgKind, Ty, TyCtxt, TypeFoldable, TypeVisitableExt, fold_regions, + self, GenericArgKind, Ty, TyCtxt, TypeFoldable, TypeVisitableExt, elaborate, fold_regions, }; use rustc_span::Span; use rustc_trait_selection::traits::query::type_op::{TypeOp, TypeOpOutput}; @@ -70,10 +71,12 @@ impl<'a, 'tcx> ConstraintConversion<'a, 'tcx> { #[instrument(skip(self), level = "debug")] pub(super) fn convert_all(&mut self, query_constraints: &QueryRegionConstraints<'tcx>) { - let QueryRegionConstraints { outlives } = query_constraints; + let QueryRegionConstraints { outlives, assumptions } = query_constraints; + let assumptions = + elaborate::elaborate_outlives_assumptions(self.infcx.tcx, assumptions.iter().copied()); for &(predicate, constraint_category) in outlives { - self.convert(predicate, constraint_category); + self.convert(predicate, constraint_category, &assumptions); } } @@ -112,15 +115,20 @@ impl<'a, 'tcx> ConstraintConversion<'a, 'tcx> { self.category = outlives_requirement.category; self.span = outlives_requirement.blame_span; - self.convert(ty::OutlivesPredicate(subject, outlived_region), self.category); + self.convert( + ty::OutlivesPredicate(subject, outlived_region), + self.category, + &Default::default(), + ); } (self.category, self.span, self.from_closure) = backup; } fn convert( &mut self, - predicate: ty::OutlivesPredicate<'tcx, ty::GenericArg<'tcx>>, + predicate: ty::ArgOutlivesPredicate<'tcx>, constraint_category: ConstraintCategory<'tcx>, + higher_ranked_assumptions: &FxHashSet<ty::ArgOutlivesPredicate<'tcx>>, ) { let tcx = self.infcx.tcx; debug!("generate: constraints at: {:#?}", self.locations); @@ -150,7 +158,15 @@ impl<'a, 'tcx> ConstraintConversion<'a, 'tcx> { } let mut next_outlives_predicates = vec![]; - for (ty::OutlivesPredicate(k1, r2), constraint_category) in outlives_predicates { + for (pred, constraint_category) in outlives_predicates { + // Constraint is implied by a coroutine's well-formedness. + if self.infcx.tcx.sess.opts.unstable_opts.higher_ranked_assumptions + && higher_ranked_assumptions.contains(&pred) + { + continue; + } + + let ty::OutlivesPredicate(k1, r2) = pred; match k1.kind() { GenericArgKind::Lifetime(r1) => { let r1_vid = self.to_region_vid(r1); @@ -266,14 +282,15 @@ impl<'a, 'tcx> ConstraintConversion<'a, 'tcx> { &self, ty: Ty<'tcx>, next_outlives_predicates: &mut Vec<( - ty::OutlivesPredicate<'tcx, ty::GenericArg<'tcx>>, + ty::ArgOutlivesPredicate<'tcx>, ConstraintCategory<'tcx>, )>, ) -> Ty<'tcx> { match self.param_env.and(DeeplyNormalize { value: ty }).fully_perform(self.infcx, self.span) { Ok(TypeOpOutput { output: ty, constraints, .. }) => { - if let Some(QueryRegionConstraints { outlives }) = constraints { + // FIXME(higher_ranked_auto): What should we do with the assumptions here? + if let Some(QueryRegionConstraints { outlives, assumptions: _ }) = constraints { next_outlives_predicates.extend(outlives.iter().copied()); } ty diff --git a/compiler/rustc_borrowck/src/type_check/mod.rs b/compiler/rustc_borrowck/src/type_check/mod.rs index f877e5eaadb..d500088c259 100644 --- a/compiler/rustc_borrowck/src/type_check/mod.rs +++ b/compiler/rustc_borrowck/src/type_check/mod.rs @@ -131,6 +131,11 @@ pub(crate) fn type_check<'tcx>( pre_obligations.is_empty(), "there should be no incoming region obligations = {pre_obligations:#?}", ); + let pre_assumptions = infcx.take_registered_region_assumptions(); + assert!( + pre_assumptions.is_empty(), + "there should be no incoming region assumptions = {pre_assumptions:#?}", + ); debug!(?normalized_inputs_and_output); diff --git a/compiler/rustc_builtin_macros/src/deriving/bounds.rs b/compiler/rustc_builtin_macros/src/deriving/bounds.rs index a98e9c6d1c7..dd8f0e46a0e 100644 --- a/compiler/rustc_builtin_macros/src/deriving/bounds.rs +++ b/compiler/rustc_builtin_macros/src/deriving/bounds.rs @@ -23,6 +23,7 @@ pub(crate) fn expand_deriving_copy( methods: Vec::new(), associated_types: Vec::new(), is_const, + is_staged_api_crate: cx.ecfg.features.staged_api(), }; trait_def.expand(cx, mitem, item, push); @@ -46,6 +47,7 @@ pub(crate) fn expand_deriving_const_param_ty( methods: Vec::new(), associated_types: Vec::new(), is_const, + is_staged_api_crate: cx.ecfg.features.staged_api(), }; trait_def.expand(cx, mitem, item, push); @@ -60,6 +62,7 @@ pub(crate) fn expand_deriving_const_param_ty( methods: Vec::new(), associated_types: Vec::new(), is_const, + is_staged_api_crate: cx.ecfg.features.staged_api(), }; trait_def.expand(cx, mitem, item, push); @@ -83,6 +86,7 @@ pub(crate) fn expand_deriving_unsized_const_param_ty( methods: Vec::new(), associated_types: Vec::new(), is_const, + is_staged_api_crate: cx.ecfg.features.staged_api(), }; trait_def.expand(cx, mitem, item, push); diff --git a/compiler/rustc_builtin_macros/src/deriving/clone.rs b/compiler/rustc_builtin_macros/src/deriving/clone.rs index 69f8c273797..3c78f53c5cb 100644 --- a/compiler/rustc_builtin_macros/src/deriving/clone.rs +++ b/compiler/rustc_builtin_macros/src/deriving/clone.rs @@ -87,6 +87,7 @@ pub(crate) fn expand_deriving_clone( }], associated_types: Vec::new(), is_const, + is_staged_api_crate: cx.ecfg.features.staged_api(), }; trait_def.expand_ext(cx, mitem, item, push, is_simple) diff --git a/compiler/rustc_builtin_macros/src/deriving/cmp/eq.rs b/compiler/rustc_builtin_macros/src/deriving/cmp/eq.rs index eca79e4dc48..29d531219a6 100644 --- a/compiler/rustc_builtin_macros/src/deriving/cmp/eq.rs +++ b/compiler/rustc_builtin_macros/src/deriving/cmp/eq.rs @@ -43,6 +43,7 @@ pub(crate) fn expand_deriving_eq( }], associated_types: Vec::new(), is_const, + is_staged_api_crate: cx.ecfg.features.staged_api(), }; trait_def.expand_ext(cx, mitem, item, push, true) } diff --git a/compiler/rustc_builtin_macros/src/deriving/cmp/ord.rs b/compiler/rustc_builtin_macros/src/deriving/cmp/ord.rs index 1ed44c20bc6..0e1ecf3118a 100644 --- a/compiler/rustc_builtin_macros/src/deriving/cmp/ord.rs +++ b/compiler/rustc_builtin_macros/src/deriving/cmp/ord.rs @@ -34,6 +34,7 @@ pub(crate) fn expand_deriving_ord( }], associated_types: Vec::new(), is_const, + is_staged_api_crate: cx.ecfg.features.staged_api(), }; trait_def.expand(cx, mitem, item, push) diff --git a/compiler/rustc_builtin_macros/src/deriving/cmp/partial_eq.rs b/compiler/rustc_builtin_macros/src/deriving/cmp/partial_eq.rs index b1d950b8d89..990835fa277 100644 --- a/compiler/rustc_builtin_macros/src/deriving/cmp/partial_eq.rs +++ b/compiler/rustc_builtin_macros/src/deriving/cmp/partial_eq.rs @@ -30,6 +30,7 @@ pub(crate) fn expand_deriving_partial_eq( methods: Vec::new(), associated_types: Vec::new(), is_const: false, + is_staged_api_crate: cx.ecfg.features.staged_api(), }; structural_trait_def.expand(cx, mitem, item, push); @@ -58,6 +59,7 @@ pub(crate) fn expand_deriving_partial_eq( methods, associated_types: Vec::new(), is_const, + is_staged_api_crate: cx.ecfg.features.staged_api(), }; trait_def.expand(cx, mitem, item, push) } diff --git a/compiler/rustc_builtin_macros/src/deriving/cmp/partial_ord.rs b/compiler/rustc_builtin_macros/src/deriving/cmp/partial_ord.rs index 0a076dd670b..f5d262ece36 100644 --- a/compiler/rustc_builtin_macros/src/deriving/cmp/partial_ord.rs +++ b/compiler/rustc_builtin_macros/src/deriving/cmp/partial_ord.rs @@ -64,6 +64,7 @@ pub(crate) fn expand_deriving_partial_ord( methods: vec![partial_cmp_def], associated_types: Vec::new(), is_const, + is_staged_api_crate: cx.ecfg.features.staged_api(), }; trait_def.expand(cx, mitem, item, push) } diff --git a/compiler/rustc_builtin_macros/src/deriving/debug.rs b/compiler/rustc_builtin_macros/src/deriving/debug.rs index 8ab21986e68..1d63ce7d5fd 100644 --- a/compiler/rustc_builtin_macros/src/deriving/debug.rs +++ b/compiler/rustc_builtin_macros/src/deriving/debug.rs @@ -41,6 +41,7 @@ pub(crate) fn expand_deriving_debug( }], associated_types: Vec::new(), is_const, + is_staged_api_crate: cx.ecfg.features.staged_api(), }; trait_def.expand(cx, mitem, item, push) } diff --git a/compiler/rustc_builtin_macros/src/deriving/default.rs b/compiler/rustc_builtin_macros/src/deriving/default.rs index 1fe567e23f4..b4e2d27fed3 100644 --- a/compiler/rustc_builtin_macros/src/deriving/default.rs +++ b/compiler/rustc_builtin_macros/src/deriving/default.rs @@ -51,6 +51,7 @@ pub(crate) fn expand_deriving_default( }], associated_types: Vec::new(), is_const, + is_staged_api_crate: cx.ecfg.features.staged_api(), }; trait_def.expand(cx, mitem, item, push) } diff --git a/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs b/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs index c55a9e73e38..b24e5563761 100644 --- a/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs +++ b/compiler/rustc_builtin_macros/src/deriving/generic/mod.rs @@ -181,9 +181,11 @@ use std::{iter, vec}; pub(crate) use StaticFields::*; pub(crate) use SubstructureFields::*; use rustc_ast::ptr::P; +use rustc_ast::token::{IdentIsRaw, LitKind, Token, TokenKind}; +use rustc_ast::tokenstream::{DelimSpan, Spacing, TokenTree}; use rustc_ast::{ - self as ast, AnonConst, BindingMode, ByRef, EnumDef, Expr, GenericArg, GenericParamKind, - Generics, Mutability, PatKind, VariantData, + self as ast, AnonConst, AttrArgs, BindingMode, ByRef, DelimArgs, EnumDef, Expr, GenericArg, + GenericParamKind, Generics, Mutability, PatKind, Safety, VariantData, }; use rustc_attr_data_structures::{AttributeKind, ReprPacked}; use rustc_attr_parsing::AttributeParser; @@ -222,6 +224,8 @@ pub(crate) struct TraitDef<'a> { pub associated_types: Vec<(Ident, Ty)>, pub is_const: bool, + + pub is_staged_api_crate: bool, } pub(crate) struct MethodDef<'a> { @@ -784,8 +788,45 @@ impl<'a> TraitDef<'a> { // Create the type of `self`. let path = cx.path_all(self.span, false, vec![type_ident], self_params); let self_type = cx.ty_path(path); + let rustc_const_unstable = + cx.path_ident(self.span, Ident::new(sym::rustc_const_unstable, self.span)); + + let mut attrs = thin_vec![cx.attr_word(sym::automatically_derived, self.span),]; + + // Only add `rustc_const_unstable` attributes if `derive_const` is used within libcore/libstd, + // Other crates don't need stability attributes, so adding them is not useful, but libcore needs them + // on all const trait impls. + if self.is_const && self.is_staged_api_crate { + attrs.push( + cx.attr_nested( + rustc_ast::AttrItem { + unsafety: Safety::Default, + path: rustc_const_unstable, + args: AttrArgs::Delimited(DelimArgs { + dspan: DelimSpan::from_single(self.span), + delim: rustc_ast::token::Delimiter::Parenthesis, + tokens: [ + TokenKind::Ident(sym::feature, IdentIsRaw::No), + TokenKind::Eq, + TokenKind::lit(LitKind::Str, sym::derive_const, None), + TokenKind::Comma, + TokenKind::Ident(sym::issue, IdentIsRaw::No), + TokenKind::Eq, + TokenKind::lit(LitKind::Str, sym::derive_const_issue, None), + ] + .into_iter() + .map(|kind| { + TokenTree::Token(Token { kind, span: self.span }, Spacing::Alone) + }) + .collect(), + }), + tokens: None, + }, + self.span, + ), + ) + } - let attrs = thin_vec![cx.attr_word(sym::automatically_derived, self.span),]; let opt_trait_ref = Some(trait_ref); cx.item( diff --git a/compiler/rustc_builtin_macros/src/deriving/hash.rs b/compiler/rustc_builtin_macros/src/deriving/hash.rs index 6e6dbe19e4d..78534449895 100644 --- a/compiler/rustc_builtin_macros/src/deriving/hash.rs +++ b/compiler/rustc_builtin_macros/src/deriving/hash.rs @@ -41,6 +41,7 @@ pub(crate) fn expand_deriving_hash( }], associated_types: Vec::new(), is_const, + is_staged_api_crate: cx.ecfg.features.staged_api(), }; hash_trait_def.expand(cx, mitem, item, push); diff --git a/compiler/rustc_builtin_macros/src/source_util.rs b/compiler/rustc_builtin_macros/src/source_util.rs index cebfffa1e16..ecfd46a84ec 100644 --- a/compiler/rustc_builtin_macros/src/source_util.rs +++ b/compiler/rustc_builtin_macros/src/source_util.rs @@ -4,8 +4,8 @@ use std::sync::Arc; use rustc_ast as ast; use rustc_ast::ptr::P; -use rustc_ast::token; use rustc_ast::tokenstream::TokenStream; +use rustc_ast::{join_path_idents, token}; use rustc_ast_pretty::pprust; use rustc_expand::base::{ DummyResult, ExpandResult, ExtCtxt, MacEager, MacResult, MacroExpanderResult, resolve_path, @@ -100,7 +100,7 @@ pub(crate) fn expand_mod( let sp = cx.with_def_site_ctxt(sp); check_zero_tts(cx, sp, tts, "module_path!"); let mod_path = &cx.current_expansion.module.mod_path; - let string = mod_path.iter().map(|x| x.to_string()).collect::<Vec<String>>().join("::"); + let string = join_path_idents(mod_path); ExpandResult::Ready(MacEager::expr(cx.expr_str(sp, Symbol::intern(&string)))) } diff --git a/compiler/rustc_builtin_macros/src/test.rs b/compiler/rustc_builtin_macros/src/test.rs index b067578794b..ba3d8368b2a 100644 --- a/compiler/rustc_builtin_macros/src/test.rs +++ b/compiler/rustc_builtin_macros/src/test.rs @@ -5,7 +5,7 @@ use std::assert_matches::assert_matches; use std::iter; use rustc_ast::ptr::P; -use rustc_ast::{self as ast, GenericParamKind, attr}; +use rustc_ast::{self as ast, GenericParamKind, attr, join_path_idents}; use rustc_ast_pretty::pprust; use rustc_errors::{Applicability, Diag, Level}; use rustc_expand::base::*; @@ -446,12 +446,7 @@ fn get_location_info(cx: &ExtCtxt<'_>, fn_: &ast::Fn) -> (Symbol, usize, usize, } fn item_path(mod_path: &[Ident], item_ident: &Ident) -> String { - mod_path - .iter() - .chain(iter::once(item_ident)) - .map(|x| x.to_string()) - .collect::<Vec<String>>() - .join("::") + join_path_idents(mod_path.iter().chain(iter::once(item_ident))) } enum ShouldPanic { diff --git a/compiler/rustc_codegen_cranelift/src/driver/aot.rs b/compiler/rustc_codegen_cranelift/src/driver/aot.rs index 442151fe32d..8ec3599b63d 100644 --- a/compiler/rustc_codegen_cranelift/src/driver/aot.rs +++ b/compiler/rustc_codegen_cranelift/src/driver/aot.rs @@ -530,8 +530,8 @@ fn codegen_cgu_content( for (mono_item, item_data) in mono_items { match mono_item { MonoItem::Fn(instance) => { - if tcx.codegen_fn_attrs(instance.def_id()).flags.contains(CodegenFnAttrFlags::NAKED) - { + let flags = tcx.codegen_instance_attrs(instance.def).flags; + if flags.contains(CodegenFnAttrFlags::NAKED) { rustc_codegen_ssa::mir::naked_asm::codegen_naked_asm( &mut GlobalAsmContext { tcx, global_asm: &mut cx.global_asm }, instance, diff --git a/compiler/rustc_codegen_cranelift/src/driver/jit.rs b/compiler/rustc_codegen_cranelift/src/driver/jit.rs index b1f185b551c..b3497503bf0 100644 --- a/compiler/rustc_codegen_cranelift/src/driver/jit.rs +++ b/compiler/rustc_codegen_cranelift/src/driver/jit.rs @@ -127,7 +127,7 @@ fn codegen_and_compile_fn<'tcx>( module: &mut dyn Module, instance: Instance<'tcx>, ) { - if tcx.codegen_fn_attrs(instance.def_id()).flags.contains(CodegenFnAttrFlags::NAKED) { + if tcx.codegen_instance_attrs(instance.def).flags.contains(CodegenFnAttrFlags::NAKED) { tcx.dcx() .span_fatal(tcx.def_span(instance.def_id()), "Naked asm is not supported in JIT mode"); } diff --git a/compiler/rustc_codegen_cranelift/src/driver/mod.rs b/compiler/rustc_codegen_cranelift/src/driver/mod.rs index ffd47cace38..8f83c30b598 100644 --- a/compiler/rustc_codegen_cranelift/src/driver/mod.rs +++ b/compiler/rustc_codegen_cranelift/src/driver/mod.rs @@ -35,7 +35,7 @@ fn predefine_mono_items<'tcx>( is_compiler_builtins, ); let is_naked = tcx - .codegen_fn_attrs(instance.def_id()) + .codegen_instance_attrs(instance.def) .flags .contains(CodegenFnAttrFlags::NAKED); module diff --git a/compiler/rustc_codegen_gcc/src/attributes.rs b/compiler/rustc_codegen_gcc/src/attributes.rs index bf0927dc590..7a1ae6ca9c8 100644 --- a/compiler/rustc_codegen_gcc/src/attributes.rs +++ b/compiler/rustc_codegen_gcc/src/attributes.rs @@ -87,7 +87,7 @@ pub fn from_fn_attrs<'gcc, 'tcx>( #[cfg_attr(not(feature = "master"), allow(unused_variables))] func: Function<'gcc>, instance: ty::Instance<'tcx>, ) { - let codegen_fn_attrs = cx.tcx.codegen_fn_attrs(instance.def_id()); + let codegen_fn_attrs = cx.tcx.codegen_instance_attrs(instance.def); #[cfg(feature = "master")] { diff --git a/compiler/rustc_codegen_gcc/src/back/lto.rs b/compiler/rustc_codegen_gcc/src/back/lto.rs index 10fce860b77..e554dd2500b 100644 --- a/compiler/rustc_codegen_gcc/src/back/lto.rs +++ b/compiler/rustc_codegen_gcc/src/back/lto.rs @@ -24,7 +24,7 @@ use std::sync::Arc; use gccjit::{Context, OutputKind}; use object::read::archive::ArchiveFile; -use rustc_codegen_ssa::back::lto::{LtoModuleCodegen, SerializedModule, ThinModule, ThinShared}; +use rustc_codegen_ssa::back::lto::{SerializedModule, ThinModule, ThinShared}; use rustc_codegen_ssa::back::symbol_export; use rustc_codegen_ssa::back::write::{CodegenContext, FatLtoInput}; use rustc_codegen_ssa::traits::*; @@ -176,7 +176,7 @@ pub(crate) fn run_fat( cgcx: &CodegenContext<GccCodegenBackend>, modules: Vec<FatLtoInput<GccCodegenBackend>>, cached_modules: Vec<(SerializedModule<ModuleBuffer>, WorkProduct)>, -) -> Result<LtoModuleCodegen<GccCodegenBackend>, FatalError> { +) -> Result<ModuleCodegen<GccContext>, FatalError> { let dcx = cgcx.create_dcx(); let dcx = dcx.handle(); let lto_data = prepare_lto(cgcx, dcx)?; @@ -201,7 +201,7 @@ fn fat_lto( mut serialized_modules: Vec<(SerializedModule<ModuleBuffer>, CString)>, tmp_path: TempDir, //symbols_below_threshold: &[String], -) -> Result<LtoModuleCodegen<GccCodegenBackend>, FatalError> { +) -> Result<ModuleCodegen<GccContext>, FatalError> { let _timer = cgcx.prof.generic_activity("GCC_fat_lto_build_monolithic_module"); info!("going for a fat lto"); @@ -334,7 +334,7 @@ fn fat_lto( // of now. module.module_llvm.temp_dir = Some(tmp_path); - Ok(LtoModuleCodegen::Fat(module)) + Ok(module) } pub struct ModuleBuffer(PathBuf); @@ -358,7 +358,7 @@ pub(crate) fn run_thin( cgcx: &CodegenContext<GccCodegenBackend>, modules: Vec<(String, ThinBuffer)>, cached_modules: Vec<(SerializedModule<ModuleBuffer>, WorkProduct)>, -) -> Result<(Vec<LtoModuleCodegen<GccCodegenBackend>>, Vec<WorkProduct>), FatalError> { +) -> Result<(Vec<ThinModule<GccCodegenBackend>>, Vec<WorkProduct>), FatalError> { let dcx = cgcx.create_dcx(); let dcx = dcx.handle(); let lto_data = prepare_lto(cgcx, dcx)?; @@ -427,7 +427,7 @@ fn thin_lto( tmp_path: TempDir, cached_modules: Vec<(SerializedModule<ModuleBuffer>, WorkProduct)>, //_symbols_below_threshold: &[String], -) -> Result<(Vec<LtoModuleCodegen<GccCodegenBackend>>, Vec<WorkProduct>), FatalError> { +) -> Result<(Vec<ThinModule<GccCodegenBackend>>, Vec<WorkProduct>), FatalError> { let _timer = cgcx.prof.generic_activity("LLVM_thin_lto_global_analysis"); info!("going for that thin, thin LTO"); @@ -573,8 +573,7 @@ fn thin_lto( }*/ info!(" - {}: re-compiled", module_name); - opt_jobs - .push(LtoModuleCodegen::Thin(ThinModule { shared: shared.clone(), idx: module_index })); + opt_jobs.push(ThinModule { shared: shared.clone(), idx: module_index }); } // Save the current ThinLTO import information for the next compilation diff --git a/compiler/rustc_codegen_gcc/src/back/write.rs b/compiler/rustc_codegen_gcc/src/back/write.rs index d03d063bdac..113abe70805 100644 --- a/compiler/rustc_codegen_gcc/src/back/write.rs +++ b/compiler/rustc_codegen_gcc/src/back/write.rs @@ -16,10 +16,12 @@ use crate::{GccCodegenBackend, GccContext}; pub(crate) fn codegen( cgcx: &CodegenContext<GccCodegenBackend>, - dcx: DiagCtxtHandle<'_>, module: ModuleCodegen<GccContext>, config: &ModuleConfig, ) -> Result<CompiledModule, FatalError> { + let dcx = cgcx.create_dcx(); + let dcx = dcx.handle(); + let _timer = cgcx.prof.generic_activity_with_arg("GCC_module_codegen", &*module.name); { let context = &module.module_llvm.context; diff --git a/compiler/rustc_codegen_gcc/src/callee.rs b/compiler/rustc_codegen_gcc/src/callee.rs index 189ac7cd779..e7ca95af594 100644 --- a/compiler/rustc_codegen_gcc/src/callee.rs +++ b/compiler/rustc_codegen_gcc/src/callee.rs @@ -105,7 +105,7 @@ pub fn get_fn<'gcc, 'tcx>(cx: &CodegenCx<'gcc, 'tcx>, instance: Instance<'tcx>) let is_hidden = if is_generic { // This is a monomorphization of a generic function. if !(cx.tcx.sess.opts.share_generics() - || tcx.codegen_fn_attrs(instance_def_id).inline + || tcx.codegen_instance_attrs(instance.def).inline == rustc_attr_data_structures::InlineAttr::Never) { // When not sharing generics, all instances are in the same diff --git a/compiler/rustc_codegen_gcc/src/lib.rs b/compiler/rustc_codegen_gcc/src/lib.rs index d8fae1ca47d..d81bcc59775 100644 --- a/compiler/rustc_codegen_gcc/src/lib.rs +++ b/compiler/rustc_codegen_gcc/src/lib.rs @@ -93,7 +93,7 @@ use gccjit::{CType, Context, OptimizationLevel}; use gccjit::{TargetInfo, Version}; use rustc_ast::expand::allocator::AllocatorKind; use rustc_ast::expand::autodiff_attrs::AutoDiffItem; -use rustc_codegen_ssa::back::lto::{LtoModuleCodegen, SerializedModule, ThinModule}; +use rustc_codegen_ssa::back::lto::{SerializedModule, ThinModule}; use rustc_codegen_ssa::back::write::{ CodegenContext, FatLtoInput, ModuleConfig, TargetMachineFactoryFn, }; @@ -353,11 +353,16 @@ impl WriteBackendMethods for GccCodegenBackend { type ThinData = ThinData; type ThinBuffer = ThinBuffer; - fn run_fat_lto( + fn run_and_optimize_fat_lto( cgcx: &CodegenContext<Self>, modules: Vec<FatLtoInput<Self>>, cached_modules: Vec<(SerializedModule<Self::ModuleBuffer>, WorkProduct)>, - ) -> Result<LtoModuleCodegen<Self>, FatalError> { + diff_fncs: Vec<AutoDiffItem>, + ) -> Result<ModuleCodegen<Self::Module>, FatalError> { + if !diff_fncs.is_empty() { + unimplemented!(); + } + back::lto::run_fat(cgcx, modules, cached_modules) } @@ -365,7 +370,7 @@ impl WriteBackendMethods for GccCodegenBackend { cgcx: &CodegenContext<Self>, modules: Vec<(String, Self::ThinBuffer)>, cached_modules: Vec<(SerializedModule<Self::ModuleBuffer>, WorkProduct)>, - ) -> Result<(Vec<LtoModuleCodegen<Self>>, Vec<WorkProduct>), FatalError> { + ) -> Result<(Vec<ThinModule<Self>>, Vec<WorkProduct>), FatalError> { back::lto::run_thin(cgcx, modules, cached_modules) } @@ -387,14 +392,6 @@ impl WriteBackendMethods for GccCodegenBackend { Ok(()) } - fn optimize_fat( - _cgcx: &CodegenContext<Self>, - _module: &mut ModuleCodegen<Self::Module>, - ) -> Result<(), FatalError> { - // TODO(antoyo) - Ok(()) - } - fn optimize_thin( cgcx: &CodegenContext<Self>, thin: ThinModule<Self>, @@ -404,11 +401,10 @@ impl WriteBackendMethods for GccCodegenBackend { fn codegen( cgcx: &CodegenContext<Self>, - dcx: DiagCtxtHandle<'_>, module: ModuleCodegen<Self::Module>, config: &ModuleConfig, ) -> Result<CompiledModule, FatalError> { - back::write::codegen(cgcx, dcx, module, config) + back::write::codegen(cgcx, module, config) } fn prepare_thin( @@ -429,15 +425,6 @@ impl WriteBackendMethods for GccCodegenBackend { ) -> Result<ModuleCodegen<Self::Module>, FatalError> { back::write::link(cgcx, dcx, modules) } - - fn autodiff( - _cgcx: &CodegenContext<Self>, - _module: &ModuleCodegen<Self::Module>, - _diff_functions: Vec<AutoDiffItem>, - _config: &ModuleConfig, - ) -> Result<(), FatalError> { - unimplemented!() - } } /// This is the entrypoint for a hot plugged rustc_codegen_gccjit diff --git a/compiler/rustc_codegen_gcc/src/mono_item.rs b/compiler/rustc_codegen_gcc/src/mono_item.rs index 539e3ac8507..51f35cbdee4 100644 --- a/compiler/rustc_codegen_gcc/src/mono_item.rs +++ b/compiler/rustc_codegen_gcc/src/mono_item.rs @@ -53,7 +53,7 @@ impl<'gcc, 'tcx> PreDefineCodegenMethods<'tcx> for CodegenCx<'gcc, 'tcx> { let fn_abi = self.fn_abi_of_instance(instance, ty::List::empty()); self.linkage.set(base::linkage_to_gcc(linkage)); let decl = self.declare_fn(symbol_name, fn_abi); - //let attrs = self.tcx.codegen_fn_attrs(instance.def_id()); + //let attrs = self.tcx.codegen_instance_attrs(instance.def); attributes::from_fn_attrs(self, decl, instance); diff --git a/compiler/rustc_codegen_llvm/messages.ftl b/compiler/rustc_codegen_llvm/messages.ftl index 3885f18271f..f197ea74473 100644 --- a/compiler/rustc_codegen_llvm/messages.ftl +++ b/compiler/rustc_codegen_llvm/messages.ftl @@ -1,5 +1,4 @@ codegen_llvm_autodiff_without_enable = using the autodiff feature requires -Z autodiff=Enable -codegen_llvm_autodiff_without_lto = using the autodiff feature requires using fat-lto codegen_llvm_copy_bitcode = failed to copy bitcode to object file: {$err} diff --git a/compiler/rustc_codegen_llvm/src/attributes.rs b/compiler/rustc_codegen_llvm/src/attributes.rs index 1ea5a062254..c32f11b27f3 100644 --- a/compiler/rustc_codegen_llvm/src/attributes.rs +++ b/compiler/rustc_codegen_llvm/src/attributes.rs @@ -344,7 +344,7 @@ pub(crate) fn llfn_attrs_from_instance<'ll, 'tcx>( llfn: &'ll Value, instance: ty::Instance<'tcx>, ) { - let codegen_fn_attrs = cx.tcx.codegen_fn_attrs(instance.def_id()); + let codegen_fn_attrs = cx.tcx.codegen_instance_attrs(instance.def); let mut to_add = SmallVec::<[_; 16]>::new(); diff --git a/compiler/rustc_codegen_llvm/src/back/lto.rs b/compiler/rustc_codegen_llvm/src/back/lto.rs index 74418adc43c..655e1c95373 100644 --- a/compiler/rustc_codegen_llvm/src/back/lto.rs +++ b/compiler/rustc_codegen_llvm/src/back/lto.rs @@ -7,7 +7,7 @@ use std::sync::Arc; use std::{io, iter, slice}; use object::read::archive::ArchiveFile; -use rustc_codegen_ssa::back::lto::{LtoModuleCodegen, SerializedModule, ThinModule, ThinShared}; +use rustc_codegen_ssa::back::lto::{SerializedModule, ThinModule, ThinShared}; use rustc_codegen_ssa::back::symbol_export; use rustc_codegen_ssa::back::write::{CodegenContext, FatLtoInput}; use rustc_codegen_ssa::traits::*; @@ -201,7 +201,7 @@ pub(crate) fn run_fat( cgcx: &CodegenContext<LlvmCodegenBackend>, modules: Vec<FatLtoInput<LlvmCodegenBackend>>, cached_modules: Vec<(SerializedModule<ModuleBuffer>, WorkProduct)>, -) -> Result<LtoModuleCodegen<LlvmCodegenBackend>, FatalError> { +) -> Result<ModuleCodegen<ModuleLlvm>, FatalError> { let dcx = cgcx.create_dcx(); let dcx = dcx.handle(); let (symbols_below_threshold, upstream_modules) = prepare_lto(cgcx, dcx)?; @@ -217,7 +217,7 @@ pub(crate) fn run_thin( cgcx: &CodegenContext<LlvmCodegenBackend>, modules: Vec<(String, ThinBuffer)>, cached_modules: Vec<(SerializedModule<ModuleBuffer>, WorkProduct)>, -) -> Result<(Vec<LtoModuleCodegen<LlvmCodegenBackend>>, Vec<WorkProduct>), FatalError> { +) -> Result<(Vec<ThinModule<LlvmCodegenBackend>>, Vec<WorkProduct>), FatalError> { let dcx = cgcx.create_dcx(); let dcx = dcx.handle(); let (symbols_below_threshold, upstream_modules) = prepare_lto(cgcx, dcx)?; @@ -248,7 +248,7 @@ fn fat_lto( cached_modules: Vec<(SerializedModule<ModuleBuffer>, WorkProduct)>, mut serialized_modules: Vec<(SerializedModule<ModuleBuffer>, CString)>, symbols_below_threshold: &[*const libc::c_char], -) -> Result<LtoModuleCodegen<LlvmCodegenBackend>, FatalError> { +) -> Result<ModuleCodegen<ModuleLlvm>, FatalError> { let _timer = cgcx.prof.generic_activity("LLVM_fat_lto_build_monolithic_module"); info!("going for a fat lto"); @@ -366,7 +366,7 @@ fn fat_lto( save_temp_bitcode(cgcx, &module, "lto.after-restriction"); } - Ok(LtoModuleCodegen::Fat(module)) + Ok(module) } pub(crate) struct Linker<'a>(&'a mut llvm::Linker<'a>); @@ -436,7 +436,7 @@ fn thin_lto( serialized_modules: Vec<(SerializedModule<ModuleBuffer>, CString)>, cached_modules: Vec<(SerializedModule<ModuleBuffer>, WorkProduct)>, symbols_below_threshold: &[*const libc::c_char], -) -> Result<(Vec<LtoModuleCodegen<LlvmCodegenBackend>>, Vec<WorkProduct>), FatalError> { +) -> Result<(Vec<ThinModule<LlvmCodegenBackend>>, Vec<WorkProduct>), FatalError> { let _timer = cgcx.prof.generic_activity("LLVM_thin_lto_global_analysis"); unsafe { info!("going for that thin, thin LTO"); @@ -568,10 +568,7 @@ fn thin_lto( } info!(" - {}: re-compiled", module_name); - opt_jobs.push(LtoModuleCodegen::Thin(ThinModule { - shared: Arc::clone(&shared), - idx: module_index, - })); + opt_jobs.push(ThinModule { shared: Arc::clone(&shared), idx: module_index }); } // Save the current ThinLTO import information for the next compilation diff --git a/compiler/rustc_codegen_llvm/src/back/write.rs b/compiler/rustc_codegen_llvm/src/back/write.rs index 506286fc255..68279008c03 100644 --- a/compiler/rustc_codegen_llvm/src/back/write.rs +++ b/compiler/rustc_codegen_llvm/src/back/write.rs @@ -817,10 +817,12 @@ pub(crate) fn link( pub(crate) fn codegen( cgcx: &CodegenContext<LlvmCodegenBackend>, - dcx: DiagCtxtHandle<'_>, module: ModuleCodegen<ModuleLlvm>, config: &ModuleConfig, ) -> Result<CompiledModule, FatalError> { + let dcx = cgcx.create_dcx(); + let dcx = dcx.handle(); + let _timer = cgcx.prof.generic_activity_with_arg("LLVM_module_codegen", &*module.name); { let llmod = module.module_llvm.llmod(); @@ -879,9 +881,7 @@ pub(crate) fn codegen( .generic_activity_with_arg("LLVM_module_codegen_embed_bitcode", &*module.name); let thin_bc = module.thin_lto_buffer.as_deref().expect("cannot find embedded bitcode"); - unsafe { - embed_bitcode(cgcx, llcx, llmod, &config.bc_cmdline, &thin_bc); - } + embed_bitcode(cgcx, llcx, llmod, &config.bc_cmdline, &thin_bc); } } @@ -945,7 +945,7 @@ pub(crate) fn codegen( // binaries. So we must clone the module to produce the asm output // if we are also producing object code. let llmod = if let EmitObj::ObjectCode(_) = config.emit_obj { - unsafe { llvm::LLVMCloneModule(llmod) } + llvm::LLVMCloneModule(llmod) } else { llmod }; @@ -1073,7 +1073,7 @@ pub(crate) fn bitcode_section_name(cgcx: &CodegenContext<LlvmCodegenBackend>) -> } /// Embed the bitcode of an LLVM module for LTO in the LLVM module itself. -unsafe fn embed_bitcode( +fn embed_bitcode( cgcx: &CodegenContext<LlvmCodegenBackend>, llcx: &llvm::Context, llmod: &llvm::Module, @@ -1115,43 +1115,40 @@ unsafe fn embed_bitcode( // Unfortunately, LLVM provides no way to set custom section flags. For ELF // and COFF we emit the sections using module level inline assembly for that // reason (see issue #90326 for historical background). - unsafe { - if cgcx.target_is_like_darwin - || cgcx.target_is_like_aix - || cgcx.target_arch == "wasm32" - || cgcx.target_arch == "wasm64" - { - // We don't need custom section flags, create LLVM globals. - let llconst = common::bytes_in_context(llcx, bitcode); - let llglobal = - llvm::add_global(llmod, common::val_ty(llconst), c"rustc.embedded.module"); - llvm::set_initializer(llglobal, llconst); - - llvm::set_section(llglobal, bitcode_section_name(cgcx)); - llvm::set_linkage(llglobal, llvm::Linkage::PrivateLinkage); - llvm::LLVMSetGlobalConstant(llglobal, llvm::True); - - let llconst = common::bytes_in_context(llcx, cmdline.as_bytes()); - let llglobal = - llvm::add_global(llmod, common::val_ty(llconst), c"rustc.embedded.cmdline"); - llvm::set_initializer(llglobal, llconst); - let section = if cgcx.target_is_like_darwin { - c"__LLVM,__cmdline" - } else if cgcx.target_is_like_aix { - c".info" - } else { - c".llvmcmd" - }; - llvm::set_section(llglobal, section); - llvm::set_linkage(llglobal, llvm::Linkage::PrivateLinkage); + + if cgcx.target_is_like_darwin + || cgcx.target_is_like_aix + || cgcx.target_arch == "wasm32" + || cgcx.target_arch == "wasm64" + { + // We don't need custom section flags, create LLVM globals. + let llconst = common::bytes_in_context(llcx, bitcode); + let llglobal = llvm::add_global(llmod, common::val_ty(llconst), c"rustc.embedded.module"); + llvm::set_initializer(llglobal, llconst); + + llvm::set_section(llglobal, bitcode_section_name(cgcx)); + llvm::set_linkage(llglobal, llvm::Linkage::PrivateLinkage); + llvm::LLVMSetGlobalConstant(llglobal, llvm::True); + + let llconst = common::bytes_in_context(llcx, cmdline.as_bytes()); + let llglobal = llvm::add_global(llmod, common::val_ty(llconst), c"rustc.embedded.cmdline"); + llvm::set_initializer(llglobal, llconst); + let section = if cgcx.target_is_like_darwin { + c"__LLVM,__cmdline" + } else if cgcx.target_is_like_aix { + c".info" } else { - // We need custom section flags, so emit module-level inline assembly. - let section_flags = if cgcx.is_pe_coff { "n" } else { "e" }; - let asm = create_section_with_flags_asm(".llvmbc", section_flags, bitcode); - llvm::append_module_inline_asm(llmod, &asm); - let asm = create_section_with_flags_asm(".llvmcmd", section_flags, cmdline.as_bytes()); - llvm::append_module_inline_asm(llmod, &asm); - } + c".llvmcmd" + }; + llvm::set_section(llglobal, section); + llvm::set_linkage(llglobal, llvm::Linkage::PrivateLinkage); + } else { + // We need custom section flags, so emit module-level inline assembly. + let section_flags = if cgcx.is_pe_coff { "n" } else { "e" }; + let asm = create_section_with_flags_asm(".llvmbc", section_flags, bitcode); + llvm::append_module_inline_asm(llmod, &asm); + let asm = create_section_with_flags_asm(".llvmcmd", section_flags, cmdline.as_bytes()); + llvm::append_module_inline_asm(llmod, &asm); } } diff --git a/compiler/rustc_codegen_llvm/src/builder.rs b/compiler/rustc_codegen_llvm/src/builder.rs index 9c3b866aa3c..514923ad6f3 100644 --- a/compiler/rustc_codegen_llvm/src/builder.rs +++ b/compiler/rustc_codegen_llvm/src/builder.rs @@ -302,10 +302,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { return; } - let id_str = "branch_weights"; - let id = unsafe { - llvm::LLVMMDStringInContext2(self.cx.llcx, id_str.as_ptr().cast(), id_str.len()) - }; + let id = self.cx.create_metadata(b"branch_weights"); // For switch instructions with 2 targets, the `llvm.expect` intrinsic is used. // This function handles switch instructions with more than 2 targets and it needs to @@ -637,17 +634,16 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { } else if place.layout.is_llvm_immediate() { let mut const_llval = None; let llty = place.layout.llvm_type(self); - unsafe { - if let Some(global) = llvm::LLVMIsAGlobalVariable(place.val.llval) { - if llvm::LLVMIsGlobalConstant(global) == llvm::True { - if let Some(init) = llvm::LLVMGetInitializer(global) { - if self.val_ty(init) == llty { - const_llval = Some(init); - } + if let Some(global) = llvm::LLVMIsAGlobalVariable(place.val.llval) { + if llvm::LLVMIsGlobalConstant(global) == llvm::True { + if let Some(init) = llvm::LLVMGetInitializer(global) { + if self.val_ty(init) == llty { + const_llval = Some(init); } } } } + let llval = const_llval.unwrap_or_else(|| { let load = self.load(llty, place.val.llval, place.val.align); if let abi::BackendRepr::Scalar(scalar) = place.layout.backend_repr { @@ -1721,7 +1717,7 @@ impl<'a, 'll, 'tcx> Builder<'a, 'll, 'tcx> { } else { cfi::typeid_for_fnabi(self.tcx, fn_abi, options) }; - let typeid_metadata = self.cx.typeid_metadata(typeid).unwrap(); + let typeid_metadata = self.cx.create_metadata(typeid.as_bytes()); let dbg_loc = self.get_dbg_loc(); // Test whether the function pointer is associated with the type identifier using the diff --git a/compiler/rustc_codegen_llvm/src/builder/autodiff.rs b/compiler/rustc_codegen_llvm/src/builder/autodiff.rs index 5afb9a60d42..829b3c513c2 100644 --- a/compiler/rustc_codegen_llvm/src/builder/autodiff.rs +++ b/compiler/rustc_codegen_llvm/src/builder/autodiff.rs @@ -2,7 +2,6 @@ use std::ptr; use rustc_ast::expand::autodiff_attrs::{AutoDiffAttrs, AutoDiffItem, DiffActivity, DiffMode}; use rustc_codegen_ssa::ModuleCodegen; -use rustc_codegen_ssa::back::write::ModuleConfig; use rustc_codegen_ssa::common::TypeKind; use rustc_codegen_ssa::traits::BaseTypeCodegenMethods; use rustc_errors::FatalError; @@ -76,12 +75,12 @@ fn match_args_from_caller_to_enzyme<'ll>( outer_pos = 1; } - let enzyme_const = cx.create_metadata("enzyme_const".to_string()).unwrap(); - let enzyme_out = cx.create_metadata("enzyme_out".to_string()).unwrap(); - let enzyme_dup = cx.create_metadata("enzyme_dup".to_string()).unwrap(); - let enzyme_dupv = cx.create_metadata("enzyme_dupv".to_string()).unwrap(); - let enzyme_dupnoneed = cx.create_metadata("enzyme_dupnoneed".to_string()).unwrap(); - let enzyme_dupnoneedv = cx.create_metadata("enzyme_dupnoneedv".to_string()).unwrap(); + let enzyme_const = cx.create_metadata(b"enzyme_const"); + let enzyme_out = cx.create_metadata(b"enzyme_out"); + let enzyme_dup = cx.create_metadata(b"enzyme_dup"); + let enzyme_dupv = cx.create_metadata(b"enzyme_dupv"); + let enzyme_dupnoneed = cx.create_metadata(b"enzyme_dupnoneed"); + let enzyme_dupnoneedv = cx.create_metadata(b"enzyme_dupnoneedv"); while activity_pos < inputs.len() { let diff_activity = inputs[activity_pos as usize]; @@ -378,12 +377,12 @@ fn generate_enzyme_call<'ll>( let mut args = Vec::with_capacity(num_args as usize + 1); args.push(fn_to_diff); - let enzyme_primal_ret = cx.create_metadata("enzyme_primal_return".to_string()).unwrap(); + let enzyme_primal_ret = cx.create_metadata(b"enzyme_primal_return"); if matches!(attrs.ret_activity, DiffActivity::Dual | DiffActivity::Active) { args.push(cx.get_metadata_value(enzyme_primal_ret)); } if attrs.width > 1 { - let enzyme_width = cx.create_metadata("enzyme_width".to_string()).unwrap(); + let enzyme_width = cx.create_metadata(b"enzyme_width"); args.push(cx.get_metadata_value(enzyme_width)); args.push(cx.get_const_int(cx.type_i64(), attrs.width as u64)); } @@ -461,7 +460,6 @@ pub(crate) fn differentiate<'ll>( module: &'ll ModuleCodegen<ModuleLlvm>, cgcx: &CodegenContext<LlvmCodegenBackend>, diff_items: Vec<AutoDiffItem>, - _config: &ModuleConfig, ) -> Result<(), FatalError> { for item in &diff_items { trace!("{}", item); diff --git a/compiler/rustc_codegen_llvm/src/callee.rs b/compiler/rustc_codegen_llvm/src/callee.rs index 6d68eca60af..5a3dd90ab24 100644 --- a/compiler/rustc_codegen_llvm/src/callee.rs +++ b/compiler/rustc_codegen_llvm/src/callee.rs @@ -102,7 +102,7 @@ pub(crate) fn get_fn<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>, instance: Instance<'t let is_hidden = if is_generic { // This is a monomorphization of a generic function. if !(cx.tcx.sess.opts.share_generics() - || tcx.codegen_fn_attrs(instance_def_id).inline + || tcx.codegen_instance_attrs(instance.def).inline == rustc_attr_data_structures::InlineAttr::Never) { // When not sharing generics, all instances are in the same diff --git a/compiler/rustc_codegen_llvm/src/common.rs b/compiler/rustc_codegen_llvm/src/common.rs index b9b5c776d86..f9ab96b5789 100644 --- a/compiler/rustc_codegen_llvm/src/common.rs +++ b/compiler/rustc_codegen_llvm/src/common.rs @@ -215,10 +215,10 @@ impl<'ll, 'tcx> ConstCodegenMethods for CodegenCx<'ll, 'tcx> { bug!("symbol `{}` is already defined", sym); }); llvm::set_initializer(g, sc); - unsafe { - llvm::LLVMSetGlobalConstant(g, True); - llvm::LLVMSetUnnamedAddress(g, llvm::UnnamedAddr::Global); - } + + llvm::set_global_constant(g, true); + llvm::set_unnamed_address(g, llvm::UnnamedAddr::Global); + llvm::set_linkage(g, llvm::Linkage::InternalLinkage); // Cast to default address space if globals are in a different addrspace let g = self.const_pointercast(g, self.type_ptr()); diff --git a/compiler/rustc_codegen_llvm/src/consts.rs b/compiler/rustc_codegen_llvm/src/consts.rs index 5deddb3ed98..0b96b63bc85 100644 --- a/compiler/rustc_codegen_llvm/src/consts.rs +++ b/compiler/rustc_codegen_llvm/src/consts.rs @@ -17,13 +17,12 @@ use rustc_middle::ty::{self, Instance}; use rustc_middle::{bug, span_bug}; use tracing::{debug, instrument, trace}; -use crate::common::{AsCCharPtr, CodegenCx}; +use crate::common::CodegenCx; use crate::errors::SymbolAlreadyDefined; -use crate::llvm::{self, True}; use crate::type_::Type; use crate::type_of::LayoutLlvmExt; use crate::value::Value; -use crate::{base, debuginfo}; +use crate::{base, debuginfo, llvm}; pub(crate) fn const_alloc_to_llvm<'ll>( cx: &CodegenCx<'ll, '_>, @@ -247,7 +246,7 @@ impl<'ll> CodegenCx<'ll, '_> { }; llvm::set_initializer(gv, cv); set_global_alignment(self, gv, align); - llvm::SetUnnamedAddress(gv, llvm::UnnamedAddr::Global); + llvm::set_unnamed_address(gv, llvm::UnnamedAddr::Global); gv } @@ -272,9 +271,8 @@ impl<'ll> CodegenCx<'ll, '_> { return gv; } let gv = self.static_addr_of_mut(cv, align, kind); - unsafe { - llvm::LLVMSetGlobalConstant(gv, True); - } + llvm::set_global_constant(gv, true); + self.const_globals.borrow_mut().insert(cv, gv); gv } @@ -398,149 +396,140 @@ impl<'ll> CodegenCx<'ll, '_> { } fn codegen_static_item(&mut self, def_id: DefId) { - unsafe { - assert!( - llvm::LLVMGetInitializer( - self.instances.borrow().get(&Instance::mono(self.tcx, def_id)).unwrap() - ) - .is_none() - ); - let attrs = self.tcx.codegen_fn_attrs(def_id); + assert!( + llvm::LLVMGetInitializer( + self.instances.borrow().get(&Instance::mono(self.tcx, def_id)).unwrap() + ) + .is_none() + ); + let attrs = self.tcx.codegen_fn_attrs(def_id); - let Ok((v, alloc)) = codegen_static_initializer(self, def_id) else { - // Error has already been reported - return; - }; - let alloc = alloc.inner(); + let Ok((v, alloc)) = codegen_static_initializer(self, def_id) else { + // Error has already been reported + return; + }; + let alloc = alloc.inner(); - let val_llty = self.val_ty(v); + let val_llty = self.val_ty(v); - let g = self.get_static_inner(def_id, val_llty); - let llty = self.get_type_of_global(g); + let g = self.get_static_inner(def_id, val_llty); + let llty = self.get_type_of_global(g); - let g = if val_llty == llty { - g - } else { - // codegen_static_initializer creates the global value just from the - // `Allocation` data by generating one big struct value that is just - // all the bytes and pointers after each other. This will almost never - // match the type that the static was declared with. Unfortunately - // we can't just LLVMConstBitCast our way out of it because that has very - // specific rules on what can be cast. So instead of adding a new way to - // generate static initializers that match the static's type, we picked - // the easier option and retroactively change the type of the static item itself. - let name = llvm::get_value_name(g); - llvm::set_value_name(g, b""); - - let linkage = llvm::get_linkage(g); - let visibility = llvm::get_visibility(g); - - let new_g = llvm::LLVMRustGetOrInsertGlobal( - self.llmod, - name.as_c_char_ptr(), - name.len(), - val_llty, - ); - - llvm::set_linkage(new_g, linkage); - llvm::set_visibility(new_g, visibility); - - // The old global has had its name removed but is returned by - // get_static since it is in the instance cache. Provide an - // alternative lookup that points to the new global so that - // global_asm! can compute the correct mangled symbol name - // for the global. - self.renamed_statics.borrow_mut().insert(def_id, new_g); - - // To avoid breaking any invariants, we leave around the old - // global for the moment; we'll replace all references to it - // with the new global later. (See base::codegen_backend.) - self.statics_to_rauw.borrow_mut().push((g, new_g)); - new_g - }; - set_global_alignment(self, g, alloc.align); - llvm::set_initializer(g, v); - - self.assume_dso_local(g, true); - - // Forward the allocation's mutability (picked by the const interner) to LLVM. - if alloc.mutability.is_not() { - llvm::LLVMSetGlobalConstant(g, llvm::True); - } + let g = if val_llty == llty { + g + } else { + // codegen_static_initializer creates the global value just from the + // `Allocation` data by generating one big struct value that is just + // all the bytes and pointers after each other. This will almost never + // match the type that the static was declared with. Unfortunately + // we can't just LLVMConstBitCast our way out of it because that has very + // specific rules on what can be cast. So instead of adding a new way to + // generate static initializers that match the static's type, we picked + // the easier option and retroactively change the type of the static item itself. + let name = String::from_utf8(llvm::get_value_name(g)) + .expect("we declare our statics with a utf8-valid name"); + llvm::set_value_name(g, b""); + + let linkage = llvm::get_linkage(g); + let visibility = llvm::get_visibility(g); + + let new_g = self.declare_global(&name, val_llty); + + llvm::set_linkage(new_g, linkage); + llvm::set_visibility(new_g, visibility); + + // The old global has had its name removed but is returned by + // get_static since it is in the instance cache. Provide an + // alternative lookup that points to the new global so that + // global_asm! can compute the correct mangled symbol name + // for the global. + self.renamed_statics.borrow_mut().insert(def_id, new_g); + + // To avoid breaking any invariants, we leave around the old + // global for the moment; we'll replace all references to it + // with the new global later. (See base::codegen_backend.) + self.statics_to_rauw.borrow_mut().push((g, new_g)); + new_g + }; + set_global_alignment(self, g, alloc.align); + llvm::set_initializer(g, v); - debuginfo::build_global_var_di_node(self, def_id, g); + self.assume_dso_local(g, true); - if attrs.flags.contains(CodegenFnAttrFlags::THREAD_LOCAL) { - llvm::set_thread_local_mode(g, self.tls_model); - } + // Forward the allocation's mutability (picked by the const interner) to LLVM. + if alloc.mutability.is_not() { + llvm::set_global_constant(g, true); + } - // Wasm statics with custom link sections get special treatment as they - // go into custom sections of the wasm executable. The exception to this - // is the `.init_array` section which are treated specially by the wasm linker. - if self.tcx.sess.target.is_like_wasm - && attrs - .link_section - .map(|link_section| !link_section.as_str().starts_with(".init_array")) - .unwrap_or(true) - { - if let Some(section) = attrs.link_section { - let section = llvm::LLVMMDStringInContext2( - self.llcx, - section.as_str().as_c_char_ptr(), - section.as_str().len(), - ); - assert!(alloc.provenance().ptrs().is_empty()); - - // The `inspect` method is okay here because we checked for provenance, and - // because we are doing this access to inspect the final interpreter state (not - // as part of the interpreter execution). - let bytes = - alloc.inspect_with_uninit_and_ptr_outside_interpreter(0..alloc.len()); - let alloc = - llvm::LLVMMDStringInContext2(self.llcx, bytes.as_c_char_ptr(), bytes.len()); - let data = [section, alloc]; - let meta = llvm::LLVMMDNodeInContext2(self.llcx, data.as_ptr(), data.len()); - let val = self.get_metadata_value(meta); + debuginfo::build_global_var_di_node(self, def_id, g); + + if attrs.flags.contains(CodegenFnAttrFlags::THREAD_LOCAL) { + llvm::set_thread_local_mode(g, self.tls_model); + } + + // Wasm statics with custom link sections get special treatment as they + // go into custom sections of the wasm executable. The exception to this + // is the `.init_array` section which are treated specially by the wasm linker. + if self.tcx.sess.target.is_like_wasm + && attrs + .link_section + .map(|link_section| !link_section.as_str().starts_with(".init_array")) + .unwrap_or(true) + { + if let Some(section) = attrs.link_section { + let section = self.create_metadata(section.as_str().as_bytes()); + assert!(alloc.provenance().ptrs().is_empty()); + + // The `inspect` method is okay here because we checked for provenance, and + // because we are doing this access to inspect the final interpreter state (not + // as part of the interpreter execution). + let bytes = alloc.inspect_with_uninit_and_ptr_outside_interpreter(0..alloc.len()); + let alloc = self.create_metadata(bytes); + let data = [section, alloc]; + let meta = + unsafe { llvm::LLVMMDNodeInContext2(self.llcx, data.as_ptr(), data.len()) }; + let val = self.get_metadata_value(meta); + unsafe { llvm::LLVMAddNamedMetadataOperand( self.llmod, c"wasm.custom_sections".as_ptr(), val, - ); - } - } else { - base::set_link_section(g, attrs); + ) + }; } + } else { + base::set_link_section(g, attrs); + } - base::set_variable_sanitizer_attrs(g, attrs); - - if attrs.flags.contains(CodegenFnAttrFlags::USED_COMPILER) { - // `USED` and `USED_LINKER` can't be used together. - assert!(!attrs.flags.contains(CodegenFnAttrFlags::USED_LINKER)); - - // The semantics of #[used] in Rust only require the symbol to make it into the - // object file. It is explicitly allowed for the linker to strip the symbol if it - // is dead, which means we are allowed to use `llvm.compiler.used` instead of - // `llvm.used` here. - // - // Additionally, https://reviews.llvm.org/D97448 in LLVM 13 started emitting unique - // sections with SHF_GNU_RETAIN flag for llvm.used symbols, which may trigger bugs - // in the handling of `.init_array` (the static constructor list) in versions of - // the gold linker (prior to the one released with binutils 2.36). - // - // That said, we only ever emit these when `#[used(compiler)]` is explicitly - // requested. This is to avoid similar breakage on other targets, in particular - // MachO targets have *their* static constructor lists broken if `llvm.compiler.used` - // is emitted rather than `llvm.used`. However, that check happens when assigning - // the `CodegenFnAttrFlags` in the `codegen_fn_attrs` query, so we don't need to - // take care of it here. - self.add_compiler_used_global(g); - } - if attrs.flags.contains(CodegenFnAttrFlags::USED_LINKER) { - // `USED` and `USED_LINKER` can't be used together. - assert!(!attrs.flags.contains(CodegenFnAttrFlags::USED_COMPILER)); + base::set_variable_sanitizer_attrs(g, attrs); + + if attrs.flags.contains(CodegenFnAttrFlags::USED_COMPILER) { + // `USED` and `USED_LINKER` can't be used together. + assert!(!attrs.flags.contains(CodegenFnAttrFlags::USED_LINKER)); + + // The semantics of #[used] in Rust only require the symbol to make it into the + // object file. It is explicitly allowed for the linker to strip the symbol if it + // is dead, which means we are allowed to use `llvm.compiler.used` instead of + // `llvm.used` here. + // + // Additionally, https://reviews.llvm.org/D97448 in LLVM 13 started emitting unique + // sections with SHF_GNU_RETAIN flag for llvm.used symbols, which may trigger bugs + // in the handling of `.init_array` (the static constructor list) in versions of + // the gold linker (prior to the one released with binutils 2.36). + // + // That said, we only ever emit these when `#[used(compiler)]` is explicitly + // requested. This is to avoid similar breakage on other targets, in particular + // MachO targets have *their* static constructor lists broken if `llvm.compiler.used` + // is emitted rather than `llvm.used`. However, that check happens when assigning + // the `CodegenFnAttrFlags` in the `codegen_fn_attrs` query, so we don't need to + // take care of it here. + self.add_compiler_used_global(g); + } + if attrs.flags.contains(CodegenFnAttrFlags::USED_LINKER) { + // `USED` and `USED_LINKER` can't be used together. + assert!(!attrs.flags.contains(CodegenFnAttrFlags::USED_COMPILER)); - self.add_used_global(g); - } + self.add_used_global(g); } } diff --git a/compiler/rustc_codegen_llvm/src/context.rs b/compiler/rustc_codegen_llvm/src/context.rs index 90582e23b04..6a23becaa96 100644 --- a/compiler/rustc_codegen_llvm/src/context.rs +++ b/compiler/rustc_codegen_llvm/src/context.rs @@ -34,7 +34,6 @@ use smallvec::SmallVec; use crate::back::write::to_llvm_code_model; use crate::callee::get_fn; -use crate::common::AsCCharPtr; use crate::debuginfo::metadata::apply_vcall_visibility_metadata; use crate::llvm::Metadata; use crate::type_::Type; @@ -169,6 +168,8 @@ pub(crate) unsafe fn create_module<'ll>( let mod_name = SmallCStr::new(mod_name); let llmod = unsafe { llvm::LLVMModuleCreateWithNameInContext(mod_name.as_ptr(), llcx) }; + let cx = SimpleCx::new(llmod, llcx, tcx.data_layout.pointer_size()); + let mut target_data_layout = sess.target.data_layout.to_string(); let llvm_version = llvm_util::get_version(); @@ -473,18 +474,14 @@ pub(crate) unsafe fn create_module<'ll>( #[allow(clippy::option_env_unwrap)] let rustc_producer = format!("rustc version {}", option_env!("CFG_VERSION").expect("CFG_VERSION")); - let name_metadata = unsafe { - llvm::LLVMMDStringInContext2( - llcx, - rustc_producer.as_c_char_ptr(), - rustc_producer.as_bytes().len(), - ) - }; + + let name_metadata = cx.create_metadata(rustc_producer.as_bytes()); + unsafe { llvm::LLVMAddNamedMetadataOperand( llmod, c"llvm.ident".as_ptr(), - &llvm::LLVMMetadataAsValue(llcx, llvm::LLVMMDNodeInContext2(llcx, &name_metadata, 1)), + &cx.get_metadata_value(llvm::LLVMMDNodeInContext2(llcx, &name_metadata, 1)), ); } @@ -698,10 +695,10 @@ impl<'ll, CX: Borrow<SCx<'ll>>> GenericCx<'ll, CX> { } } - pub(crate) fn create_metadata(&self, name: String) -> Option<&'ll Metadata> { - Some(unsafe { + pub(crate) fn create_metadata(&self, name: &[u8]) -> &'ll Metadata { + unsafe { llvm::LLVMMDStringInContext2(self.llcx(), name.as_ptr() as *const c_char, name.len()) - }) + } } pub(crate) fn get_functions(&self) -> Vec<&'ll Value> { diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs b/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs index 49ee96a41d6..61555ac2f6f 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs @@ -74,7 +74,7 @@ pub(crate) fn get_or_insert_gdb_debug_scripts_section_global<'ll>( llvm::set_section(section_var, c".debug_gdb_scripts"); llvm::set_initializer(section_var, cx.const_bytes(section_contents)); llvm::LLVMSetGlobalConstant(section_var, llvm::True); - llvm::LLVMSetUnnamedAddress(section_var, llvm::UnnamedAddr::Global); + llvm::set_unnamed_address(section_var, llvm::UnnamedAddr::Global); llvm::set_linkage(section_var, llvm::Linkage::LinkOnceODRLinkage); // This should make sure that the whole section is not larger than // the string it contains. Otherwise we get a warning from GDB. diff --git a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs index 9b4736e50e6..0e9dbfba658 100644 --- a/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs +++ b/compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs @@ -5,7 +5,7 @@ use std::path::{Path, PathBuf}; use std::sync::Arc; use std::{iter, ptr}; -use libc::{c_char, c_longlong, c_uint}; +use libc::{c_longlong, c_uint}; use rustc_abi::{Align, Size}; use rustc_codegen_ssa::debuginfo::type_names::{VTableNameKind, cpp_like_debuginfo}; use rustc_codegen_ssa::traits::*; @@ -1582,13 +1582,9 @@ pub(crate) fn apply_vcall_visibility_metadata<'ll, 'tcx>( }; let trait_ref_typeid = typeid_for_trait_ref(cx.tcx, trait_ref); + let typeid = cx.create_metadata(trait_ref_typeid.as_bytes()); unsafe { - let typeid = llvm::LLVMMDStringInContext2( - cx.llcx, - trait_ref_typeid.as_ptr() as *const c_char, - trait_ref_typeid.as_bytes().len(), - ); let v = [llvm::LLVMValueAsMetadata(cx.const_usize(0)), typeid]; llvm::LLVMRustGlobalAddMetadata( vtable, @@ -1630,7 +1626,7 @@ pub(crate) fn create_vtable_di_node<'ll, 'tcx>( // When full debuginfo is enabled, we want to try and prevent vtables from being // merged. Otherwise debuggers will have a hard time mapping from dyn pointer // to concrete type. - llvm::SetUnnamedAddress(vtable, llvm::UnnamedAddr::No); + llvm::set_unnamed_address(vtable, llvm::UnnamedAddr::No); let vtable_name = compute_debuginfo_vtable_name(cx.tcx, ty, poly_trait_ref, VTableNameKind::GlobalVariable); diff --git a/compiler/rustc_codegen_llvm/src/declare.rs b/compiler/rustc_codegen_llvm/src/declare.rs index 2419ec1f888..eb75716d768 100644 --- a/compiler/rustc_codegen_llvm/src/declare.rs +++ b/compiler/rustc_codegen_llvm/src/declare.rs @@ -49,7 +49,7 @@ pub(crate) fn declare_simple_fn<'ll>( }; llvm::SetFunctionCallConv(llfn, callconv); - llvm::SetUnnamedAddress(llfn, unnamed); + llvm::set_unnamed_address(llfn, unnamed); llvm::set_visibility(llfn, visibility); llfn @@ -176,7 +176,7 @@ impl<'ll, 'tcx> CodegenCx<'ll, 'tcx> { { let typeid = cfi::typeid_for_instance(self.tcx, instance, options); if typeids.insert(typeid.clone()) { - self.add_type_metadata(llfn, typeid); + self.add_type_metadata(llfn, typeid.as_bytes()); } } } else { @@ -189,7 +189,7 @@ impl<'ll, 'tcx> CodegenCx<'ll, 'tcx> { .map(cfi::TypeIdOptions::from_iter) { let typeid = cfi::typeid_for_fnabi(self.tcx, fn_abi, options); - self.add_type_metadata(llfn, typeid); + self.add_type_metadata(llfn, typeid.as_bytes()); } } } diff --git a/compiler/rustc_codegen_llvm/src/errors.rs b/compiler/rustc_codegen_llvm/src/errors.rs index d50ad8a1a9c..31d49e86319 100644 --- a/compiler/rustc_codegen_llvm/src/errors.rs +++ b/compiler/rustc_codegen_llvm/src/errors.rs @@ -38,10 +38,6 @@ impl<G: EmissionGuarantee> Diagnostic<'_, G> for ParseTargetMachineConfig<'_> { } #[derive(Diagnostic)] -#[diag(codegen_llvm_autodiff_without_lto)] -pub(crate) struct AutoDiffWithoutLTO; - -#[derive(Diagnostic)] #[diag(codegen_llvm_autodiff_without_enable)] pub(crate) struct AutoDiffWithoutEnable; diff --git a/compiler/rustc_codegen_llvm/src/lib.rs b/compiler/rustc_codegen_llvm/src/lib.rs index 63ca51b006d..6db4e122ad6 100644 --- a/compiler/rustc_codegen_llvm/src/lib.rs +++ b/compiler/rustc_codegen_llvm/src/lib.rs @@ -26,11 +26,11 @@ use std::mem::ManuallyDrop; use back::owned_target_machine::OwnedTargetMachine; use back::write::{create_informational_target_machine, create_target_machine}; use context::SimpleCx; -use errors::{AutoDiffWithoutLTO, ParseTargetMachineConfig}; +use errors::ParseTargetMachineConfig; use llvm_util::target_config; use rustc_ast::expand::allocator::AllocatorKind; use rustc_ast::expand::autodiff_attrs::AutoDiffItem; -use rustc_codegen_ssa::back::lto::{LtoModuleCodegen, SerializedModule, ThinModule}; +use rustc_codegen_ssa::back::lto::{SerializedModule, ThinModule}; use rustc_codegen_ssa::back::write::{ CodegenContext, FatLtoInput, ModuleConfig, TargetMachineFactoryConfig, TargetMachineFactoryFn, }; @@ -43,7 +43,7 @@ use rustc_middle::dep_graph::{WorkProduct, WorkProductId}; use rustc_middle::ty::TyCtxt; use rustc_middle::util::Providers; use rustc_session::Session; -use rustc_session::config::{Lto, OptLevel, OutputFilenames, PrintKind, PrintRequest}; +use rustc_session::config::{OptLevel, OutputFilenames, PrintKind, PrintRequest}; use rustc_span::Symbol; mod back { @@ -174,18 +174,29 @@ impl WriteBackendMethods for LlvmCodegenBackend { ) -> Result<ModuleCodegen<Self::Module>, FatalError> { back::write::link(cgcx, dcx, modules) } - fn run_fat_lto( + fn run_and_optimize_fat_lto( cgcx: &CodegenContext<Self>, modules: Vec<FatLtoInput<Self>>, cached_modules: Vec<(SerializedModule<Self::ModuleBuffer>, WorkProduct)>, - ) -> Result<LtoModuleCodegen<Self>, FatalError> { - back::lto::run_fat(cgcx, modules, cached_modules) + diff_fncs: Vec<AutoDiffItem>, + ) -> Result<ModuleCodegen<Self::Module>, FatalError> { + let mut module = back::lto::run_fat(cgcx, modules, cached_modules)?; + + if !diff_fncs.is_empty() { + builder::autodiff::differentiate(&module, cgcx, diff_fncs)?; + } + + let dcx = cgcx.create_dcx(); + let dcx = dcx.handle(); + back::lto::run_pass_manager(cgcx, dcx, &mut module, false)?; + + Ok(module) } fn run_thin_lto( cgcx: &CodegenContext<Self>, modules: Vec<(String, Self::ThinBuffer)>, cached_modules: Vec<(SerializedModule<Self::ModuleBuffer>, WorkProduct)>, - ) -> Result<(Vec<LtoModuleCodegen<Self>>, Vec<WorkProduct>), FatalError> { + ) -> Result<(Vec<ThinModule<Self>>, Vec<WorkProduct>), FatalError> { back::lto::run_thin(cgcx, modules, cached_modules) } fn optimize( @@ -196,14 +207,6 @@ impl WriteBackendMethods for LlvmCodegenBackend { ) -> Result<(), FatalError> { back::write::optimize(cgcx, dcx, module, config) } - fn optimize_fat( - cgcx: &CodegenContext<Self>, - module: &mut ModuleCodegen<Self::Module>, - ) -> Result<(), FatalError> { - let dcx = cgcx.create_dcx(); - let dcx = dcx.handle(); - back::lto::run_pass_manager(cgcx, dcx, module, false) - } fn optimize_thin( cgcx: &CodegenContext<Self>, thin: ThinModule<Self>, @@ -212,11 +215,10 @@ impl WriteBackendMethods for LlvmCodegenBackend { } fn codegen( cgcx: &CodegenContext<Self>, - dcx: DiagCtxtHandle<'_>, module: ModuleCodegen<Self::Module>, config: &ModuleConfig, ) -> Result<CompiledModule, FatalError> { - back::write::codegen(cgcx, dcx, module, config) + back::write::codegen(cgcx, module, config) } fn prepare_thin( module: ModuleCodegen<Self::Module>, @@ -227,19 +229,6 @@ impl WriteBackendMethods for LlvmCodegenBackend { fn serialize_module(module: ModuleCodegen<Self::Module>) -> (String, Self::ModuleBuffer) { (module.name, back::lto::ModuleBuffer::new(module.module_llvm.llmod())) } - /// Generate autodiff rules - fn autodiff( - cgcx: &CodegenContext<Self>, - module: &ModuleCodegen<Self::Module>, - diff_fncs: Vec<AutoDiffItem>, - config: &ModuleConfig, - ) -> Result<(), FatalError> { - if cgcx.lto != Lto::Fat { - let dcx = cgcx.create_dcx(); - return Err(dcx.handle().emit_almost_fatal(AutoDiffWithoutLTO)); - } - builder::autodiff::differentiate(module, cgcx, diff_fncs, config) - } } impl LlvmCodegenBackend { diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs index 5c34ab2e304..0b1e632cbc4 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs @@ -1009,7 +1009,7 @@ unsafe extern "C" { ModuleID: *const c_char, C: &Context, ) -> &Module; - pub(crate) fn LLVMCloneModule(M: &Module) -> &Module; + pub(crate) safe fn LLVMCloneModule(M: &Module) -> &Module; /// Data layout. See Module::getDataLayout. pub(crate) fn LLVMGetDataLayoutStr(M: &Module) -> *const c_char; @@ -1168,18 +1168,18 @@ unsafe extern "C" { pub(crate) fn LLVMGlobalGetValueType(Global: &Value) -> &Type; // Operations on global variables - pub(crate) fn LLVMIsAGlobalVariable(GlobalVar: &Value) -> Option<&Value>; + pub(crate) safe fn LLVMIsAGlobalVariable(GlobalVar: &Value) -> Option<&Value>; pub(crate) fn LLVMAddGlobal<'a>(M: &'a Module, Ty: &'a Type, Name: *const c_char) -> &'a Value; pub(crate) fn LLVMGetNamedGlobal(M: &Module, Name: *const c_char) -> Option<&Value>; pub(crate) fn LLVMGetFirstGlobal(M: &Module) -> Option<&Value>; pub(crate) fn LLVMGetNextGlobal(GlobalVar: &Value) -> Option<&Value>; pub(crate) fn LLVMDeleteGlobal(GlobalVar: &Value); - pub(crate) fn LLVMGetInitializer(GlobalVar: &Value) -> Option<&Value>; + pub(crate) safe fn LLVMGetInitializer(GlobalVar: &Value) -> Option<&Value>; pub(crate) fn LLVMSetInitializer<'a>(GlobalVar: &'a Value, ConstantVal: &'a Value); - pub(crate) fn LLVMIsThreadLocal(GlobalVar: &Value) -> Bool; + pub(crate) safe fn LLVMIsThreadLocal(GlobalVar: &Value) -> Bool; pub(crate) fn LLVMSetThreadLocalMode(GlobalVar: &Value, Mode: ThreadLocalMode); - pub(crate) fn LLVMIsGlobalConstant(GlobalVar: &Value) -> Bool; - pub(crate) fn LLVMSetGlobalConstant(GlobalVar: &Value, IsConstant: Bool); + pub(crate) safe fn LLVMIsGlobalConstant(GlobalVar: &Value) -> Bool; + pub(crate) safe fn LLVMSetGlobalConstant(GlobalVar: &Value, IsConstant: Bool); pub(crate) safe fn LLVMSetTailCall(CallInst: &Value, IsTailCall: Bool); // Operations on attributes @@ -1718,7 +1718,7 @@ unsafe extern "C" { pub(crate) safe fn LLVMMetadataAsValue<'a>(C: &'a Context, MD: &'a Metadata) -> &'a Value; - pub(crate) fn LLVMSetUnnamedAddress(Global: &Value, UnnamedAddr: UnnamedAddr); + pub(crate) safe fn LLVMSetUnnamedAddress(Global: &Value, UnnamedAddr: UnnamedAddr); pub(crate) fn LLVMIsAConstantInt(value_ref: &Value) -> Option<&ConstantInt>; diff --git a/compiler/rustc_codegen_llvm/src/llvm/mod.rs b/compiler/rustc_codegen_llvm/src/llvm/mod.rs index 3fc83fca352..154ba4fd690 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/mod.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/mod.rs @@ -217,10 +217,8 @@ pub(crate) fn SetUniqueComdat(llmod: &Module, val: &Value) { set_comdat(llmod, val, &name); } -pub(crate) fn SetUnnamedAddress(global: &Value, unnamed: UnnamedAddr) { - unsafe { - LLVMSetUnnamedAddress(global, unnamed); - } +pub(crate) fn set_unnamed_address(global: &Value, unnamed: UnnamedAddr) { + LLVMSetUnnamedAddress(global, unnamed); } pub(crate) fn set_thread_local_mode(global: &Value, mode: ThreadLocalMode) { @@ -260,9 +258,7 @@ pub(crate) fn set_initializer(llglobal: &Value, constant_val: &Value) { } pub(crate) fn set_global_constant(llglobal: &Value, is_constant: bool) { - unsafe { - LLVMSetGlobalConstant(llglobal, if is_constant { ffi::True } else { ffi::False }); - } + LLVMSetGlobalConstant(llglobal, if is_constant { ffi::True } else { ffi::False }); } pub(crate) fn get_linkage(llglobal: &Value) -> Linkage { diff --git a/compiler/rustc_codegen_llvm/src/mono_item.rs b/compiler/rustc_codegen_llvm/src/mono_item.rs index 3f38e1e191b..f9edaded60d 100644 --- a/compiler/rustc_codegen_llvm/src/mono_item.rs +++ b/compiler/rustc_codegen_llvm/src/mono_item.rs @@ -55,8 +55,8 @@ impl<'tcx> PreDefineCodegenMethods<'tcx> for CodegenCx<'_, 'tcx> { let fn_abi = self.fn_abi_of_instance(instance, ty::List::empty()); let lldecl = self.declare_fn(symbol_name, fn_abi, Some(instance)); llvm::set_linkage(lldecl, base::linkage_to_llvm(linkage)); - let attrs = self.tcx.codegen_fn_attrs(instance.def_id()); - base::set_link_section(lldecl, attrs); + let attrs = self.tcx.codegen_instance_attrs(instance.def); + base::set_link_section(lldecl, &attrs); if (linkage == Linkage::LinkOnceODR || linkage == Linkage::WeakODR) && self.tcx.sess.target.supports_comdat() { @@ -131,8 +131,8 @@ impl CodegenCx<'_, '_> { } // Thread-local variables generally don't support copy relocations. - let is_thread_local_var = unsafe { llvm::LLVMIsAGlobalVariable(llval) } - .is_some_and(|v| unsafe { llvm::LLVMIsThreadLocal(v) } == llvm::True); + let is_thread_local_var = llvm::LLVMIsAGlobalVariable(llval) + .is_some_and(|v| llvm::LLVMIsThreadLocal(v) == llvm::True); if is_thread_local_var { return false; } diff --git a/compiler/rustc_codegen_llvm/src/type_.rs b/compiler/rustc_codegen_llvm/src/type_.rs index ee472e75ed4..89365503138 100644 --- a/compiler/rustc_codegen_llvm/src/type_.rs +++ b/compiler/rustc_codegen_llvm/src/type_.rs @@ -2,7 +2,7 @@ use std::borrow::Borrow; use std::hash::{Hash, Hasher}; use std::{fmt, ptr}; -use libc::{c_char, c_uint}; +use libc::c_uint; use rustc_abi::{AddressSpace, Align, Integer, Reg, Size}; use rustc_codegen_ssa::common::TypeKind; use rustc_codegen_ssa::traits::*; @@ -298,8 +298,8 @@ impl<'ll, 'tcx> LayoutTypeCodegenMethods<'tcx> for CodegenCx<'ll, 'tcx> { } impl<'ll, 'tcx> TypeMembershipCodegenMethods<'tcx> for CodegenCx<'ll, 'tcx> { - fn add_type_metadata(&self, function: &'ll Value, typeid: String) { - let typeid_metadata = self.typeid_metadata(typeid).unwrap(); + fn add_type_metadata(&self, function: &'ll Value, typeid: &[u8]) { + let typeid_metadata = self.create_metadata(typeid); unsafe { let v = [llvm::LLVMValueAsMetadata(self.const_usize(0)), typeid_metadata]; llvm::LLVMRustGlobalAddMetadata( @@ -310,8 +310,8 @@ impl<'ll, 'tcx> TypeMembershipCodegenMethods<'tcx> for CodegenCx<'ll, 'tcx> { } } - fn set_type_metadata(&self, function: &'ll Value, typeid: String) { - let typeid_metadata = self.typeid_metadata(typeid).unwrap(); + fn set_type_metadata(&self, function: &'ll Value, typeid: &[u8]) { + let typeid_metadata = self.create_metadata(typeid); unsafe { let v = [llvm::LLVMValueAsMetadata(self.const_usize(0)), typeid_metadata]; llvm::LLVMGlobalSetMetadata( @@ -322,10 +322,8 @@ impl<'ll, 'tcx> TypeMembershipCodegenMethods<'tcx> for CodegenCx<'ll, 'tcx> { } } - fn typeid_metadata(&self, typeid: String) -> Option<&'ll Metadata> { - Some(unsafe { - llvm::LLVMMDStringInContext2(self.llcx, typeid.as_ptr() as *const c_char, typeid.len()) - }) + fn typeid_metadata(&self, typeid: &[u8]) -> Option<&'ll Metadata> { + Some(self.create_metadata(typeid)) } fn add_kcfi_type_metadata(&self, function: &'ll Value, kcfi_typeid: u32) { diff --git a/compiler/rustc_codegen_ssa/src/back/link.rs b/compiler/rustc_codegen_ssa/src/back/link.rs index b46773396fc..5ce301c0eb9 100644 --- a/compiler/rustc_codegen_ssa/src/back/link.rs +++ b/compiler/rustc_codegen_ssa/src/back/link.rs @@ -2542,12 +2542,7 @@ fn add_order_independent_options( // sections to ensure we have all the data for PGO. let keep_metadata = crate_type == CrateType::Dylib || sess.opts.cg.profile_generate.enabled(); - if crate_type != CrateType::Executable || !sess.opts.unstable_opts.export_executable_symbols - { - cmd.gc_sections(keep_metadata); - } else { - cmd.no_gc_sections(); - } + cmd.gc_sections(keep_metadata); } cmd.set_output_kind(link_output_kind, crate_type, out_filename); diff --git a/compiler/rustc_codegen_ssa/src/back/linker.rs b/compiler/rustc_codegen_ssa/src/back/linker.rs index e0a3ad55be0..050797354b4 100644 --- a/compiler/rustc_codegen_ssa/src/back/linker.rs +++ b/compiler/rustc_codegen_ssa/src/back/linker.rs @@ -326,7 +326,6 @@ pub(crate) trait Linker { link_or_cc_args(self, &[path]); } fn gc_sections(&mut self, keep_metadata: bool); - fn no_gc_sections(&mut self); fn full_relro(&mut self); fn partial_relro(&mut self); fn no_relro(&mut self); @@ -688,12 +687,6 @@ impl<'a> Linker for GccLinker<'a> { } } - fn no_gc_sections(&mut self) { - if self.is_gnu || self.sess.target.is_like_wasm { - self.link_arg("--no-gc-sections"); - } - } - fn optimize(&mut self) { if !self.is_gnu && !self.sess.target.is_like_wasm { return; @@ -1010,10 +1003,6 @@ impl<'a> Linker for MsvcLinker<'a> { } } - fn no_gc_sections(&mut self) { - self.link_arg("/OPT:NOREF,NOICF"); - } - fn full_relro(&mut self) { // noop } @@ -1243,10 +1232,6 @@ impl<'a> Linker for EmLinker<'a> { // noop } - fn no_gc_sections(&mut self) { - // noop - } - fn optimize(&mut self) { // Emscripten performs own optimizations self.cc_arg(match self.sess.opts.optimize { @@ -1418,10 +1403,6 @@ impl<'a> Linker for WasmLd<'a> { self.link_arg("--gc-sections"); } - fn no_gc_sections(&mut self) { - self.link_arg("--no-gc-sections"); - } - fn optimize(&mut self) { // The -O flag is, as of late 2023, only used for merging of strings and debuginfo, and // only differentiates -O0 and -O1. It does not apply to LTO. @@ -1567,10 +1548,6 @@ impl<'a> Linker for L4Bender<'a> { } } - fn no_gc_sections(&mut self) { - self.link_arg("--no-gc-sections"); - } - fn optimize(&mut self) { // GNU-style linkers support optimization with -O. GNU ld doesn't // need a numeric argument, but other linkers do. @@ -1734,10 +1711,6 @@ impl<'a> Linker for AixLinker<'a> { self.link_arg("-bgc"); } - fn no_gc_sections(&mut self) { - self.link_arg("-bnogc"); - } - fn optimize(&mut self) {} fn pgo_gen(&mut self) { @@ -1982,8 +1955,6 @@ impl<'a> Linker for PtxLinker<'a> { fn gc_sections(&mut self, _keep_metadata: bool) {} - fn no_gc_sections(&mut self) {} - fn pgo_gen(&mut self) {} fn no_crt_objects(&mut self) {} @@ -2057,8 +2028,6 @@ impl<'a> Linker for LlbcLinker<'a> { fn gc_sections(&mut self, _keep_metadata: bool) {} - fn no_gc_sections(&mut self) {} - fn pgo_gen(&mut self) {} fn no_crt_objects(&mut self) {} @@ -2139,8 +2108,6 @@ impl<'a> Linker for BpfLinker<'a> { fn gc_sections(&mut self, _keep_metadata: bool) {} - fn no_gc_sections(&mut self) {} - fn pgo_gen(&mut self) {} fn no_crt_objects(&mut self) {} diff --git a/compiler/rustc_codegen_ssa/src/back/lto.rs b/compiler/rustc_codegen_ssa/src/back/lto.rs index ce6fe8a191b..b49b6783bbd 100644 --- a/compiler/rustc_codegen_ssa/src/back/lto.rs +++ b/compiler/rustc_codegen_ssa/src/back/lto.rs @@ -1,13 +1,8 @@ use std::ffi::CString; use std::sync::Arc; -use rustc_ast::expand::autodiff_attrs::AutoDiffItem; use rustc_data_structures::memmap::Mmap; -use rustc_errors::FatalError; -use super::write::CodegenContext; -use crate::ModuleCodegen; -use crate::back::write::ModuleConfig; use crate::traits::*; pub struct ThinModule<B: WriteBackendMethods> { @@ -42,61 +37,6 @@ pub struct ThinShared<B: WriteBackendMethods> { pub module_names: Vec<CString>, } -pub enum LtoModuleCodegen<B: WriteBackendMethods> { - Fat(ModuleCodegen<B::Module>), - Thin(ThinModule<B>), -} - -impl<B: WriteBackendMethods> LtoModuleCodegen<B> { - pub fn name(&self) -> &str { - match *self { - LtoModuleCodegen::Fat(_) => "everything", - LtoModuleCodegen::Thin(ref m) => m.name(), - } - } - - /// Optimize this module within the given codegen context. - pub fn optimize( - self, - cgcx: &CodegenContext<B>, - ) -> Result<ModuleCodegen<B::Module>, FatalError> { - match self { - LtoModuleCodegen::Fat(mut module) => { - B::optimize_fat(cgcx, &mut module)?; - Ok(module) - } - LtoModuleCodegen::Thin(thin) => B::optimize_thin(cgcx, thin), - } - } - - /// A "gauge" of how costly it is to optimize this module, used to sort - /// biggest modules first. - pub fn cost(&self) -> u64 { - match *self { - // Only one module with fat LTO, so the cost doesn't matter. - LtoModuleCodegen::Fat(_) => 0, - LtoModuleCodegen::Thin(ref m) => m.cost(), - } - } - - /// Run autodiff on Fat LTO module - pub fn autodiff( - self, - cgcx: &CodegenContext<B>, - diff_fncs: Vec<AutoDiffItem>, - config: &ModuleConfig, - ) -> Result<LtoModuleCodegen<B>, FatalError> { - match &self { - LtoModuleCodegen::Fat(module) => { - B::autodiff(cgcx, &module, diff_fncs, config)?; - } - _ => panic!("autodiff called with non-fat LTO module"), - } - - Ok(self) - } -} - pub enum SerializedModule<M: ModuleBufferMethods> { Local(M), FromRlib(Vec<u8>), diff --git a/compiler/rustc_codegen_ssa/src/back/write.rs b/compiler/rustc_codegen_ssa/src/back/write.rs index d2a64ec2993..50a7cba300b 100644 --- a/compiler/rustc_codegen_ssa/src/back/write.rs +++ b/compiler/rustc_codegen_ssa/src/back/write.rs @@ -397,50 +397,31 @@ impl<B: WriteBackendMethods> CodegenContext<B> { } } -fn generate_lto_work<B: ExtraBackendMethods>( +fn generate_thin_lto_work<B: ExtraBackendMethods>( cgcx: &CodegenContext<B>, - autodiff: Vec<AutoDiffItem>, - needs_fat_lto: Vec<FatLtoInput<B>>, needs_thin_lto: Vec<(String, B::ThinBuffer)>, import_only_modules: Vec<(SerializedModule<B::ModuleBuffer>, WorkProduct)>, ) -> Vec<(WorkItem<B>, u64)> { - let _prof_timer = cgcx.prof.generic_activity("codegen_generate_lto_work"); - - if !needs_fat_lto.is_empty() { - assert!(needs_thin_lto.is_empty()); - let mut module = - B::run_fat_lto(cgcx, needs_fat_lto, import_only_modules).unwrap_or_else(|e| e.raise()); - if cgcx.lto == Lto::Fat && !autodiff.is_empty() { - let config = cgcx.config(ModuleKind::Regular); - module = module.autodiff(cgcx, autodiff, config).unwrap_or_else(|e| e.raise()); - } - // We are adding a single work item, so the cost doesn't matter. - vec![(WorkItem::LTO(module), 0)] - } else { - if !autodiff.is_empty() { - let dcx = cgcx.create_dcx(); - dcx.handle().emit_fatal(AutodiffWithoutLto {}); - } - assert!(needs_fat_lto.is_empty()); - let (lto_modules, copy_jobs) = B::run_thin_lto(cgcx, needs_thin_lto, import_only_modules) - .unwrap_or_else(|e| e.raise()); - lto_modules - .into_iter() - .map(|module| { - let cost = module.cost(); - (WorkItem::LTO(module), cost) - }) - .chain(copy_jobs.into_iter().map(|wp| { - ( - WorkItem::CopyPostLtoArtifacts(CachedModuleCodegen { - name: wp.cgu_name.clone(), - source: wp, - }), - 0, // copying is very cheap - ) - })) - .collect() - } + let _prof_timer = cgcx.prof.generic_activity("codegen_thin_generate_lto_work"); + + let (lto_modules, copy_jobs) = + B::run_thin_lto(cgcx, needs_thin_lto, import_only_modules).unwrap_or_else(|e| e.raise()); + lto_modules + .into_iter() + .map(|module| { + let cost = module.cost(); + (WorkItem::ThinLto(module), cost) + }) + .chain(copy_jobs.into_iter().map(|wp| { + ( + WorkItem::CopyPostLtoArtifacts(CachedModuleCodegen { + name: wp.cgu_name.clone(), + source: wp, + }), + 0, // copying is very cheap + ) + })) + .collect() } struct CompiledModules { @@ -470,6 +451,7 @@ pub(crate) fn start_async_codegen<B: ExtraBackendMethods>( backend: B, tcx: TyCtxt<'_>, target_cpu: String, + autodiff_items: &[AutoDiffItem], ) -> OngoingCodegen<B> { let (coordinator_send, coordinator_receive) = channel(); @@ -488,6 +470,7 @@ pub(crate) fn start_async_codegen<B: ExtraBackendMethods>( backend.clone(), tcx, &crate_info, + autodiff_items, shared_emitter, codegen_worker_send, coordinator_receive, @@ -736,15 +719,23 @@ pub(crate) enum WorkItem<B: WriteBackendMethods> { /// Copy the post-LTO artifacts from the incremental cache to the output /// directory. CopyPostLtoArtifacts(CachedModuleCodegen), - /// Performs (Thin)LTO on the given module. - LTO(lto::LtoModuleCodegen<B>), + /// Performs fat LTO on the given module. + FatLto { + needs_fat_lto: Vec<FatLtoInput<B>>, + import_only_modules: Vec<(SerializedModule<B::ModuleBuffer>, WorkProduct)>, + autodiff: Vec<AutoDiffItem>, + }, + /// Performs thin-LTO on the given module. + ThinLto(lto::ThinModule<B>), } impl<B: WriteBackendMethods> WorkItem<B> { fn module_kind(&self) -> ModuleKind { match *self { WorkItem::Optimize(ref m) => m.kind, - WorkItem::CopyPostLtoArtifacts(_) | WorkItem::LTO(_) => ModuleKind::Regular, + WorkItem::CopyPostLtoArtifacts(_) | WorkItem::FatLto { .. } | WorkItem::ThinLto(_) => { + ModuleKind::Regular + } } } @@ -792,7 +783,8 @@ impl<B: WriteBackendMethods> WorkItem<B> { match self { WorkItem::Optimize(m) => desc("opt", "optimize module", &m.name), WorkItem::CopyPostLtoArtifacts(m) => desc("cpy", "copy LTO artifacts for", &m.name), - WorkItem::LTO(m) => desc("lto", "LTO module", m.name()), + WorkItem::FatLto { .. } => desc("lto", "fat LTO module", "everything"), + WorkItem::ThinLto(m) => desc("lto", "thin-LTO module", m.name()), } } } @@ -996,12 +988,24 @@ fn execute_copy_from_cache_work_item<B: ExtraBackendMethods>( }) } -fn execute_lto_work_item<B: ExtraBackendMethods>( +fn execute_fat_lto_work_item<B: ExtraBackendMethods>( + cgcx: &CodegenContext<B>, + needs_fat_lto: Vec<FatLtoInput<B>>, + import_only_modules: Vec<(SerializedModule<B::ModuleBuffer>, WorkProduct)>, + autodiff: Vec<AutoDiffItem>, + module_config: &ModuleConfig, +) -> Result<WorkItemResult<B>, FatalError> { + let module = B::run_and_optimize_fat_lto(cgcx, needs_fat_lto, import_only_modules, autodiff)?; + let module = B::codegen(cgcx, module, module_config)?; + Ok(WorkItemResult::Finished(module)) +} + +fn execute_thin_lto_work_item<B: ExtraBackendMethods>( cgcx: &CodegenContext<B>, - module: lto::LtoModuleCodegen<B>, + module: lto::ThinModule<B>, module_config: &ModuleConfig, ) -> Result<WorkItemResult<B>, FatalError> { - let module = module.optimize(cgcx)?; + let module = B::optimize_thin(cgcx, module)?; finish_intra_module_work(cgcx, module, module_config) } @@ -1010,11 +1014,8 @@ fn finish_intra_module_work<B: ExtraBackendMethods>( module: ModuleCodegen<B::Module>, module_config: &ModuleConfig, ) -> Result<WorkItemResult<B>, FatalError> { - let dcx = cgcx.create_dcx(); - let dcx = dcx.handle(); - if !cgcx.opts.unstable_opts.combine_cgu || module.kind == ModuleKind::Allocator { - let module = B::codegen(cgcx, dcx, module, module_config)?; + let module = B::codegen(cgcx, module, module_config)?; Ok(WorkItemResult::Finished(module)) } else { Ok(WorkItemResult::NeedsLink(module)) @@ -1031,9 +1032,6 @@ pub(crate) enum Message<B: WriteBackendMethods> { /// Sent from a backend worker thread. WorkItem { result: Result<WorkItemResult<B>, Option<WorkerFatalError>>, worker_id: usize }, - /// A vector containing all the AutoDiff tasks that we have to pass to Enzyme. - AddAutoDiffItems(Vec<AutoDiffItem>), - /// The frontend has finished generating something (backend IR or a /// post-LTO artifact) for a codegen unit, and it should be passed to the /// backend. Sent from the main thread. @@ -1100,6 +1098,7 @@ fn start_executing_work<B: ExtraBackendMethods>( backend: B, tcx: TyCtxt<'_>, crate_info: &CrateInfo, + autodiff_items: &[AutoDiffItem], shared_emitter: SharedEmitter, codegen_worker_send: Sender<CguMessage>, coordinator_receive: Receiver<Box<dyn Any + Send>>, @@ -1109,6 +1108,7 @@ fn start_executing_work<B: ExtraBackendMethods>( ) -> thread::JoinHandle<Result<CompiledModules, ()>> { let coordinator_send = tx_to_llvm_workers; let sess = tcx.sess; + let autodiff_items = autodiff_items.to_vec(); let mut each_linked_rlib_for_lto = Vec::new(); drop(link::each_linked_rlib(crate_info, None, &mut |cnum, path| { @@ -1362,7 +1362,6 @@ fn start_executing_work<B: ExtraBackendMethods>( // This is where we collect codegen units that have gone all the way // through codegen and LLVM. - let mut autodiff_items = Vec::new(); let mut compiled_modules = vec![]; let mut compiled_allocator_module = None; let mut needs_link = Vec::new(); @@ -1474,20 +1473,37 @@ fn start_executing_work<B: ExtraBackendMethods>( let needs_thin_lto = mem::take(&mut needs_thin_lto); let import_only_modules = mem::take(&mut lto_import_only_modules); - for (work, cost) in generate_lto_work( - &cgcx, - autodiff_items.clone(), - needs_fat_lto, - needs_thin_lto, - import_only_modules, - ) { - let insertion_index = work_items - .binary_search_by_key(&cost, |&(_, cost)| cost) - .unwrap_or_else(|e| e); - work_items.insert(insertion_index, (work, cost)); + if !needs_fat_lto.is_empty() { + assert!(needs_thin_lto.is_empty()); + + work_items.push(( + WorkItem::FatLto { + needs_fat_lto, + import_only_modules, + autodiff: autodiff_items.clone(), + }, + 0, + )); if cgcx.parallel { helper.request_token(); } + } else { + if !autodiff_items.is_empty() { + let dcx = cgcx.create_dcx(); + dcx.handle().emit_fatal(AutodiffWithoutLto {}); + } + + for (work, cost) in + generate_thin_lto_work(&cgcx, needs_thin_lto, import_only_modules) + { + let insertion_index = work_items + .binary_search_by_key(&cost, |&(_, cost)| cost) + .unwrap_or_else(|e| e); + work_items.insert(insertion_index, (work, cost)); + if cgcx.parallel { + helper.request_token(); + } + } } } @@ -1616,10 +1632,6 @@ fn start_executing_work<B: ExtraBackendMethods>( main_thread_state = MainThreadState::Idle; } - Message::AddAutoDiffItems(mut items) => { - autodiff_items.append(&mut items); - } - Message::CodegenComplete => { if codegen_state != Aborted { codegen_state = Completed; @@ -1702,7 +1714,7 @@ fn start_executing_work<B: ExtraBackendMethods>( let dcx = dcx.handle(); let module = B::run_link(&cgcx, dcx, needs_link).map_err(|_| ())?; let module = - B::codegen(&cgcx, dcx, module, cgcx.config(ModuleKind::Regular)).map_err(|_| ())?; + B::codegen(&cgcx, module, cgcx.config(ModuleKind::Regular)).map_err(|_| ())?; compiled_modules.push(module); } @@ -1842,10 +1854,22 @@ fn spawn_work<'a, B: ExtraBackendMethods>( ); Ok(execute_copy_from_cache_work_item(&cgcx, m, module_config)) } - WorkItem::LTO(m) => { + WorkItem::FatLto { needs_fat_lto, import_only_modules, autodiff } => { + let _timer = cgcx + .prof + .generic_activity_with_arg("codegen_module_perform_lto", "everything"); + execute_fat_lto_work_item( + &cgcx, + needs_fat_lto, + import_only_modules, + autodiff, + module_config, + ) + } + WorkItem::ThinLto(m) => { let _timer = cgcx.prof.generic_activity_with_arg("codegen_module_perform_lto", m.name()); - execute_lto_work_item(&cgcx, m, module_config) + execute_thin_lto_work_item(&cgcx, m, module_config) } }) }; @@ -2082,10 +2106,6 @@ impl<B: ExtraBackendMethods> OngoingCodegen<B> { drop(self.coordinator.sender.send(Box::new(Message::CodegenComplete::<B>))); } - pub(crate) fn submit_autodiff_items(&self, items: Vec<AutoDiffItem>) { - drop(self.coordinator.sender.send(Box::new(Message::<B>::AddAutoDiffItems(items)))); - } - pub(crate) fn check_for_errors(&self, sess: &Session) { self.shared_emitter_main.check(sess, false); } diff --git a/compiler/rustc_codegen_ssa/src/base.rs b/compiler/rustc_codegen_ssa/src/base.rs index 18581f854b6..833456abb8a 100644 --- a/compiler/rustc_codegen_ssa/src/base.rs +++ b/compiler/rustc_codegen_ssa/src/base.rs @@ -647,7 +647,7 @@ pub fn codegen_crate<B: ExtraBackendMethods>( ) -> OngoingCodegen<B> { // Skip crate items and just output metadata in -Z no-codegen mode. if tcx.sess.opts.unstable_opts.no_codegen || !tcx.sess.opts.output_types.should_codegen() { - let ongoing_codegen = start_async_codegen(backend, tcx, target_cpu); + let ongoing_codegen = start_async_codegen(backend, tcx, target_cpu, &[]); ongoing_codegen.codegen_finished(tcx); @@ -667,7 +667,6 @@ pub fn codegen_crate<B: ExtraBackendMethods>( // codegen units. let MonoItemPartitions { codegen_units, autodiff_items, .. } = tcx.collect_and_partition_mono_items(()); - let autodiff_fncs = autodiff_items.to_vec(); // Force all codegen_unit queries so they are already either red or green // when compile_codegen_unit accesses them. We are not able to re-execute @@ -680,7 +679,7 @@ pub fn codegen_crate<B: ExtraBackendMethods>( } } - let ongoing_codegen = start_async_codegen(backend.clone(), tcx, target_cpu); + let ongoing_codegen = start_async_codegen(backend.clone(), tcx, target_cpu, autodiff_items); // Codegen an allocator shim, if necessary. if let Some(kind) = allocator_kind_for_codegen(tcx) { @@ -710,10 +709,6 @@ pub fn codegen_crate<B: ExtraBackendMethods>( ); } - if !autodiff_fncs.is_empty() { - ongoing_codegen.submit_autodiff_items(autodiff_fncs); - } - // For better throughput during parallel processing by LLVM, we used to sort // CGUs largest to smallest. This would lead to better thread utilization // by, for example, preventing a large CGU from being processed last and diff --git a/compiler/rustc_codegen_ssa/src/meth.rs b/compiler/rustc_codegen_ssa/src/meth.rs index 2aa5c3c27ea..34ad35a729b 100644 --- a/compiler/rustc_codegen_ssa/src/meth.rs +++ b/compiler/rustc_codegen_ssa/src/meth.rs @@ -139,7 +139,8 @@ pub(crate) fn load_vtable<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( && bx.cx().sess().lto() == Lto::Fat { if let Some(trait_ref) = dyn_trait_in_self(bx.tcx(), ty) { - let typeid = bx.typeid_metadata(typeid_for_trait_ref(bx.tcx(), trait_ref)).unwrap(); + let typeid = + bx.typeid_metadata(typeid_for_trait_ref(bx.tcx(), trait_ref).as_bytes()).unwrap(); let func = bx.type_checked_load(llvtable, vtable_byte_offset, typeid); return func; } else if nonnull { diff --git a/compiler/rustc_codegen_ssa/src/mir/debuginfo.rs b/compiler/rustc_codegen_ssa/src/mir/debuginfo.rs index 025f5fb54f4..b8f635ab781 100644 --- a/compiler/rustc_codegen_ssa/src/mir/debuginfo.rs +++ b/compiler/rustc_codegen_ssa/src/mir/debuginfo.rs @@ -356,7 +356,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { LocalRef::Operand(operand) => { // Don't spill operands onto the stack in naked functions. // See: https://github.com/rust-lang/rust/issues/42779 - let attrs = bx.tcx().codegen_fn_attrs(self.instance.def_id()); + let attrs = bx.tcx().codegen_instance_attrs(self.instance.def); if attrs.flags.contains(CodegenFnAttrFlags::NAKED) { return; } diff --git a/compiler/rustc_codegen_ssa/src/mir/mod.rs b/compiler/rustc_codegen_ssa/src/mir/mod.rs index fa69820d5d2..50d0f910744 100644 --- a/compiler/rustc_codegen_ssa/src/mir/mod.rs +++ b/compiler/rustc_codegen_ssa/src/mir/mod.rs @@ -390,9 +390,8 @@ fn arg_local_refs<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( let mut num_untupled = None; - let codegen_fn_attrs = bx.tcx().codegen_fn_attrs(fx.instance.def_id()); - let naked = codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::NAKED); - if naked { + let codegen_fn_attrs = bx.tcx().codegen_instance_attrs(fx.instance.def); + if codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::NAKED) { return vec![]; } diff --git a/compiler/rustc_codegen_ssa/src/mir/naked_asm.rs b/compiler/rustc_codegen_ssa/src/mir/naked_asm.rs index beaf8950978..42e435cf0a3 100644 --- a/compiler/rustc_codegen_ssa/src/mir/naked_asm.rs +++ b/compiler/rustc_codegen_ssa/src/mir/naked_asm.rs @@ -128,7 +128,7 @@ fn prefix_and_suffix<'tcx>( let is_arm = tcx.sess.target.arch == "arm"; let is_thumb = tcx.sess.unstable_target_features.contains(&sym::thumb_mode); - let attrs = tcx.codegen_fn_attrs(instance.def_id()); + let attrs = tcx.codegen_instance_attrs(instance.def); let link_section = attrs.link_section.map(|symbol| symbol.as_str().to_string()); // If no alignment is specified, an alignment of 4 bytes is used. diff --git a/compiler/rustc_codegen_ssa/src/mir/rvalue.rs b/compiler/rustc_codegen_ssa/src/mir/rvalue.rs index e90463aacc8..2587e89417a 100644 --- a/compiler/rustc_codegen_ssa/src/mir/rvalue.rs +++ b/compiler/rustc_codegen_ssa/src/mir/rvalue.rs @@ -611,11 +611,19 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { let fn_abi = bx.fn_abi_of_instance(instance, ty::List::empty()); let fn_ty = bx.fn_decl_backend_type(fn_abi); let fn_attrs = if bx.tcx().def_kind(instance.def_id()).has_codegen_attrs() { - Some(bx.tcx().codegen_fn_attrs(instance.def_id())) + Some(bx.tcx().codegen_instance_attrs(instance.def)) } else { None }; - bx.call(fn_ty, fn_attrs, Some(fn_abi), fn_ptr, &[], None, Some(instance)) + bx.call( + fn_ty, + fn_attrs.as_deref(), + Some(fn_abi), + fn_ptr, + &[], + None, + Some(instance), + ) } else { bx.get_static(def_id) }; diff --git a/compiler/rustc_codegen_ssa/src/mono_item.rs b/compiler/rustc_codegen_ssa/src/mono_item.rs index 7b4268abe4b..b9040c330fb 100644 --- a/compiler/rustc_codegen_ssa/src/mono_item.rs +++ b/compiler/rustc_codegen_ssa/src/mono_item.rs @@ -41,12 +41,8 @@ impl<'a, 'tcx: 'a> MonoItemExt<'a, 'tcx> for MonoItem<'tcx> { base::codegen_global_asm(cx, item_id); } MonoItem::Fn(instance) => { - if cx - .tcx() - .codegen_fn_attrs(instance.def_id()) - .flags - .contains(CodegenFnAttrFlags::NAKED) - { + let flags = cx.tcx().codegen_instance_attrs(instance.def).flags; + if flags.contains(CodegenFnAttrFlags::NAKED) { naked_asm::codegen_naked_asm::<Bx::CodegenCx>(cx, instance, item_data); } else { base::codegen_instance::<Bx>(cx, instance); @@ -75,7 +71,7 @@ impl<'a, 'tcx: 'a> MonoItemExt<'a, 'tcx> for MonoItem<'tcx> { cx.predefine_static(def_id, linkage, visibility, symbol_name); } MonoItem::Fn(instance) => { - let attrs = cx.tcx().codegen_fn_attrs(instance.def_id()); + let attrs = cx.tcx().codegen_instance_attrs(instance.def); if attrs.flags.contains(CodegenFnAttrFlags::NAKED) { // do not define this function; it will become a global assembly block diff --git a/compiler/rustc_codegen_ssa/src/traits/type_.rs b/compiler/rustc_codegen_ssa/src/traits/type_.rs index dcd9e25b2c9..32c24965e1b 100644 --- a/compiler/rustc_codegen_ssa/src/traits/type_.rs +++ b/compiler/rustc_codegen_ssa/src/traits/type_.rs @@ -154,9 +154,9 @@ pub trait LayoutTypeCodegenMethods<'tcx>: BackendTypes { // For backends that support CFI using type membership (i.e., testing whether a given pointer is // associated with a type identifier). pub trait TypeMembershipCodegenMethods<'tcx>: BackendTypes { - fn add_type_metadata(&self, _function: Self::Function, _typeid: String) {} - fn set_type_metadata(&self, _function: Self::Function, _typeid: String) {} - fn typeid_metadata(&self, _typeid: String) -> Option<Self::Metadata> { + fn add_type_metadata(&self, _function: Self::Function, _typeid: &[u8]) {} + fn set_type_metadata(&self, _function: Self::Function, _typeid: &[u8]) {} + fn typeid_metadata(&self, _typeid: &[u8]) -> Option<Self::Metadata> { None } fn add_kcfi_type_metadata(&self, _function: Self::Function, _typeid: u32) {} diff --git a/compiler/rustc_codegen_ssa/src/traits/write.rs b/compiler/rustc_codegen_ssa/src/traits/write.rs index 07a0609fda1..5e993640472 100644 --- a/compiler/rustc_codegen_ssa/src/traits/write.rs +++ b/compiler/rustc_codegen_ssa/src/traits/write.rs @@ -2,7 +2,7 @@ use rustc_ast::expand::autodiff_attrs::AutoDiffItem; use rustc_errors::{DiagCtxtHandle, FatalError}; use rustc_middle::dep_graph::WorkProduct; -use crate::back::lto::{LtoModuleCodegen, SerializedModule, ThinModule}; +use crate::back::lto::{SerializedModule, ThinModule}; use crate::back::write::{CodegenContext, FatLtoInput, ModuleConfig}; use crate::{CompiledModule, ModuleCodegen}; @@ -20,13 +20,14 @@ pub trait WriteBackendMethods: Clone + 'static { dcx: DiagCtxtHandle<'_>, modules: Vec<ModuleCodegen<Self::Module>>, ) -> Result<ModuleCodegen<Self::Module>, FatalError>; - /// Performs fat LTO by merging all modules into a single one and returning it - /// for further optimization. - fn run_fat_lto( + /// Performs fat LTO by merging all modules into a single one, running autodiff + /// if necessary and running any further optimizations + fn run_and_optimize_fat_lto( cgcx: &CodegenContext<Self>, modules: Vec<FatLtoInput<Self>>, cached_modules: Vec<(SerializedModule<Self::ModuleBuffer>, WorkProduct)>, - ) -> Result<LtoModuleCodegen<Self>, FatalError>; + diff_fncs: Vec<AutoDiffItem>, + ) -> Result<ModuleCodegen<Self::Module>, FatalError>; /// Performs thin LTO by performing necessary global analysis and returning two /// lists, one of the modules that need optimization and another for modules that /// can simply be copied over from the incr. comp. cache. @@ -34,7 +35,7 @@ pub trait WriteBackendMethods: Clone + 'static { cgcx: &CodegenContext<Self>, modules: Vec<(String, Self::ThinBuffer)>, cached_modules: Vec<(SerializedModule<Self::ModuleBuffer>, WorkProduct)>, - ) -> Result<(Vec<LtoModuleCodegen<Self>>, Vec<WorkProduct>), FatalError>; + ) -> Result<(Vec<ThinModule<Self>>, Vec<WorkProduct>), FatalError>; fn print_pass_timings(&self); fn print_statistics(&self); fn optimize( @@ -43,17 +44,12 @@ pub trait WriteBackendMethods: Clone + 'static { module: &mut ModuleCodegen<Self::Module>, config: &ModuleConfig, ) -> Result<(), FatalError>; - fn optimize_fat( - cgcx: &CodegenContext<Self>, - llmod: &mut ModuleCodegen<Self::Module>, - ) -> Result<(), FatalError>; fn optimize_thin( cgcx: &CodegenContext<Self>, thin: ThinModule<Self>, ) -> Result<ModuleCodegen<Self::Module>, FatalError>; fn codegen( cgcx: &CodegenContext<Self>, - dcx: DiagCtxtHandle<'_>, module: ModuleCodegen<Self::Module>, config: &ModuleConfig, ) -> Result<CompiledModule, FatalError>; @@ -62,12 +58,6 @@ pub trait WriteBackendMethods: Clone + 'static { want_summary: bool, ) -> (String, Self::ThinBuffer); fn serialize_module(module: ModuleCodegen<Self::Module>) -> (String, Self::ModuleBuffer); - fn autodiff( - cgcx: &CodegenContext<Self>, - module: &ModuleCodegen<Self::Module>, - diff_fncs: Vec<AutoDiffItem>, - config: &ModuleConfig, - ) -> Result<(), FatalError>; } pub trait ThinBufferMethods: Send + Sync { diff --git a/compiler/rustc_const_eval/messages.ftl b/compiler/rustc_const_eval/messages.ftl index b767ca9a3c2..aa0bc42d448 100644 --- a/compiler/rustc_const_eval/messages.ftl +++ b/compiler/rustc_const_eval/messages.ftl @@ -56,6 +56,17 @@ const_eval_const_context = {$kind -> *[other] {""} } +const_eval_const_heap_ptr_in_final = encountered `const_allocate` pointer in final value that was not made global + .note = use `const_make_global` to make allocated pointers immutable before returning + +const_eval_const_make_global_ptr_already_made_global = attempting to call `const_make_global` twice on the same allocation {$alloc} + +const_eval_const_make_global_ptr_is_non_heap = pointer passed to `const_make_global` does not point to a heap allocation: {$ptr} + +const_eval_const_make_global_with_dangling_ptr = pointer passed to `const_make_global` is dangling: {$ptr} + +const_eval_const_make_global_with_offset = making {$ptr} global which does not point to the beginning of an object + const_eval_copy_nonoverlapping_overlapping = `copy_nonoverlapping` called on overlapping ranges @@ -296,19 +307,22 @@ const_eval_pointer_arithmetic_overflow = overflowing pointer arithmetic: the total offset in bytes does not fit in an `isize` const_eval_pointer_out_of_bounds = - {const_eval_bad_pointer_op_attempting}, but got {$pointer} which {$inbounds_size_is_neg -> - [false] {$alloc_size_minus_ptr_offset -> - [0] is at or beyond the end of the allocation of size {$alloc_size -> - [1] 1 byte - *[x] {$alloc_size} bytes + {const_eval_bad_pointer_op_attempting}, but got {$pointer} which {$ptr_offset_is_neg -> + [true] points to before the beginning of the allocation + *[false] {$inbounds_size_is_neg -> + [false] {$alloc_size_minus_ptr_offset -> + [0] is at or beyond the end of the allocation of size {$alloc_size -> + [1] 1 byte + *[x] {$alloc_size} bytes + } + [1] is only 1 byte from the end of the allocation + *[x] is only {$alloc_size_minus_ptr_offset} bytes from the end of the allocation + } + *[true] {$ptr_offset_abs -> + [0] is at the beginning of the allocation + *[other] is only {$ptr_offset_abs} bytes from the beginning of the allocation } - [1] is only 1 byte from the end of the allocation - *[x] is only {$alloc_size_minus_ptr_offset} bytes from the end of the allocation - } - *[true] {$ptr_offset_abs -> - [0] is at the beginning of the allocation - *[other] is only {$ptr_offset_abs} bytes from the beginning of the allocation - } + } } const_eval_pointer_use_after_free = diff --git a/compiler/rustc_const_eval/src/check_consts/mod.rs b/compiler/rustc_const_eval/src/check_consts/mod.rs index 9ab8e0692e1..ebf18c6f2ac 100644 --- a/compiler/rustc_const_eval/src/check_consts/mod.rs +++ b/compiler/rustc_const_eval/src/check_consts/mod.rs @@ -93,7 +93,7 @@ pub fn rustc_allow_const_fn_unstable( /// world into two functions: those that are safe to expose on stable (and hence may not use /// unstable features, not even recursively), and those that are not. pub fn is_fn_or_trait_safe_to_expose_on_stable(tcx: TyCtxt<'_>, def_id: DefId) -> bool { - // A default body in a `#[const_trait]` is const-stable when the trait is const-stable. + // A default body in a `const trait` is const-stable when the trait is const-stable. if tcx.is_const_default_method(def_id) { return is_fn_or_trait_safe_to_expose_on_stable(tcx, tcx.parent(def_id)); } diff --git a/compiler/rustc_const_eval/src/const_eval/dummy_machine.rs b/compiler/rustc_const_eval/src/const_eval/dummy_machine.rs index b6e2682af36..438aed41b8b 100644 --- a/compiler/rustc_const_eval/src/const_eval/dummy_machine.rs +++ b/compiler/rustc_const_eval/src/const_eval/dummy_machine.rs @@ -49,7 +49,6 @@ impl HasStaticRootDefId for DummyMachine { impl<'tcx> interpret::Machine<'tcx> for DummyMachine { interpret::compile_time_machine!(<'tcx>); - type MemoryKind = !; const PANIC_ON_ALLOC_FAIL: bool = true; // We want to just eval random consts in the program, so `eval_mir_const` can fail. diff --git a/compiler/rustc_const_eval/src/const_eval/error.rs b/compiler/rustc_const_eval/src/const_eval/error.rs index 08fc03d9c46..3e880d02001 100644 --- a/compiler/rustc_const_eval/src/const_eval/error.rs +++ b/compiler/rustc_const_eval/src/const_eval/error.rs @@ -2,7 +2,7 @@ use std::mem; use rustc_errors::{Diag, DiagArgName, DiagArgValue, DiagMessage, IntoDiagArg}; use rustc_middle::mir::AssertKind; -use rustc_middle::mir::interpret::{Provenance, ReportedErrorInfo}; +use rustc_middle::mir::interpret::{AllocId, Provenance, ReportedErrorInfo}; use rustc_middle::query::TyCtxtAt; use rustc_middle::ty::layout::LayoutError; use rustc_middle::ty::{ConstInt, TyCtxt}; @@ -11,8 +11,8 @@ use rustc_span::{Span, Symbol}; use super::CompileTimeMachine; use crate::errors::{self, FrameNote, ReportErrorExt}; use crate::interpret::{ - ErrorHandled, Frame, InterpErrorInfo, InterpErrorKind, MachineStopType, err_inval, - err_machine_stop, + CtfeProvenance, ErrorHandled, Frame, InterpErrorInfo, InterpErrorKind, MachineStopType, + Pointer, err_inval, err_machine_stop, }; /// The CTFE machine has some custom error kinds. @@ -22,8 +22,22 @@ pub enum ConstEvalErrKind { ModifiedGlobal, RecursiveStatic, AssertFailure(AssertKind<ConstInt>), - Panic { msg: Symbol, line: u32, col: u32, file: Symbol }, + Panic { + msg: Symbol, + line: u32, + col: u32, + file: Symbol, + }, WriteThroughImmutablePointer, + /// Called `const_make_global` twice. + ConstMakeGlobalPtrAlreadyMadeGlobal(AllocId), + /// Called `const_make_global` on a non-heap pointer. + ConstMakeGlobalPtrIsNonHeap(Pointer<Option<CtfeProvenance>>), + /// Called `const_make_global` on a dangling pointer. + ConstMakeGlobalWithDanglingPtr(Pointer<Option<CtfeProvenance>>), + /// Called `const_make_global` on a pointer that does not start at the + /// beginning of an object. + ConstMakeGlobalWithOffset(Pointer<Option<CtfeProvenance>>), } impl MachineStopType for ConstEvalErrKind { @@ -38,6 +52,12 @@ impl MachineStopType for ConstEvalErrKind { RecursiveStatic => const_eval_recursive_static, AssertFailure(x) => x.diagnostic_message(), WriteThroughImmutablePointer => const_eval_write_through_immutable_pointer, + ConstMakeGlobalPtrAlreadyMadeGlobal { .. } => { + const_eval_const_make_global_ptr_already_made_global + } + ConstMakeGlobalPtrIsNonHeap(_) => const_eval_const_make_global_ptr_is_non_heap, + ConstMakeGlobalWithDanglingPtr(_) => const_eval_const_make_global_with_dangling_ptr, + ConstMakeGlobalWithOffset(_) => const_eval_const_make_global_with_offset, } } fn add_args(self: Box<Self>, adder: &mut dyn FnMut(DiagArgName, DiagArgValue)) { @@ -51,6 +71,14 @@ impl MachineStopType for ConstEvalErrKind { Panic { msg, .. } => { adder("msg".into(), msg.into_diag_arg(&mut None)); } + ConstMakeGlobalPtrIsNonHeap(ptr) + | ConstMakeGlobalWithOffset(ptr) + | ConstMakeGlobalWithDanglingPtr(ptr) => { + adder("ptr".into(), format!("{ptr:?}").into_diag_arg(&mut None)); + } + ConstMakeGlobalPtrAlreadyMadeGlobal(alloc) => { + adder("alloc".into(), alloc.into_diag_arg(&mut None)); + } } } } diff --git a/compiler/rustc_const_eval/src/const_eval/eval_queries.rs b/compiler/rustc_const_eval/src/const_eval/eval_queries.rs index 4bd4b493009..ce72d59b8b0 100644 --- a/compiler/rustc_const_eval/src/const_eval/eval_queries.rs +++ b/compiler/rustc_const_eval/src/const_eval/eval_queries.rs @@ -18,7 +18,7 @@ use tracing::{debug, instrument, trace}; use super::{CanAccessMutGlobal, CompileTimeInterpCx, CompileTimeMachine}; use crate::const_eval::CheckAlignment; use crate::interpret::{ - CtfeValidationMode, GlobalId, Immediate, InternKind, InternResult, InterpCx, InterpErrorKind, + CtfeValidationMode, GlobalId, Immediate, InternError, InternKind, InterpCx, InterpErrorKind, InterpResult, MPlaceTy, MemoryKind, OpTy, RefTracking, ReturnContinuation, create_static_alloc, intern_const_alloc_recursive, interp_ok, throw_exhaust, }; @@ -93,25 +93,30 @@ fn eval_body_using_ecx<'tcx, R: InterpretationResult<'tcx>>( // Since evaluation had no errors, validate the resulting constant. const_validate_mplace(ecx, &ret, cid)?; - // Only report this after validation, as validaiton produces much better diagnostics. + // Only report this after validation, as validation produces much better diagnostics. // FIXME: ensure validation always reports this and stop making interning care about it. match intern_result { Ok(()) => {} - Err(InternResult::FoundDanglingPointer) => { + Err(InternError::DanglingPointer) => { throw_inval!(AlreadyReported(ReportedErrorInfo::non_const_eval_error( ecx.tcx .dcx() .emit_err(errors::DanglingPtrInFinal { span: ecx.tcx.span, kind: intern_kind }), ))); } - Err(InternResult::FoundBadMutablePointer) => { + Err(InternError::BadMutablePointer) => { throw_inval!(AlreadyReported(ReportedErrorInfo::non_const_eval_error( ecx.tcx .dcx() .emit_err(errors::MutablePtrInFinal { span: ecx.tcx.span, kind: intern_kind }), ))); } + Err(InternError::ConstAllocNotGlobal) => { + throw_inval!(AlreadyReported(ReportedErrorInfo::non_const_eval_error( + ecx.tcx.dcx().emit_err(errors::ConstHeapPtrInFinal { span: ecx.tcx.span }), + ))); + } } interp_ok(R::make_result(ret, ecx)) diff --git a/compiler/rustc_const_eval/src/const_eval/machine.rs b/compiler/rustc_const_eval/src/const_eval/machine.rs index 52fc898192a..f24fb18f83b 100644 --- a/compiler/rustc_const_eval/src/const_eval/machine.rs +++ b/compiler/rustc_const_eval/src/const_eval/machine.rs @@ -169,13 +169,19 @@ pub type CompileTimeInterpCx<'tcx> = InterpCx<'tcx, CompileTimeMachine<'tcx>>; #[derive(Debug, PartialEq, Eq, Copy, Clone)] pub enum MemoryKind { - Heap, + Heap { + /// Indicates whether `make_global` was called on this allocation. + /// If this is `true`, the allocation must be immutable. + was_made_global: bool, + }, } impl fmt::Display for MemoryKind { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match self { - MemoryKind::Heap => write!(f, "heap allocation"), + MemoryKind::Heap { was_made_global } => { + write!(f, "heap allocation{}", if *was_made_global { " (made global)" } else { "" }) + } } } } @@ -184,7 +190,7 @@ impl interpret::MayLeak for MemoryKind { #[inline(always)] fn may_leak(self) -> bool { match self { - MemoryKind::Heap => false, + MemoryKind::Heap { was_made_global } => was_made_global, } } } @@ -314,8 +320,6 @@ impl<'tcx> CompileTimeMachine<'tcx> { impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { compile_time_machine!(<'tcx>); - type MemoryKind = MemoryKind; - const PANIC_ON_ALLOC_FAIL: bool = false; // will be raised as a proper error #[inline(always)] @@ -359,8 +363,8 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { if let ty::InstanceKind::Item(def) = instance.def { // Execution might have wandered off into other crates, so we cannot do a stability- // sensitive check here. But we can at least rule out functions that are not const at - // all. That said, we have to allow calling functions inside a trait marked with - // #[const_trait]. These *are* const-checked! + // all. That said, we have to allow calling functions inside a `const trait`. These + // *are* const-checked! if !ecx.tcx.is_const_fn(def) || ecx.tcx.has_attr(def, sym::rustc_do_not_const_check) { // We certainly do *not* want to actually call the fn // though, so be sure we return here. @@ -420,7 +424,7 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { let ptr = ecx.allocate_ptr( Size::from_bytes(size), align, - interpret::MemoryKind::Machine(MemoryKind::Heap), + interpret::MemoryKind::Machine(MemoryKind::Heap { was_made_global: false }), AllocInit::Uninit, )?; ecx.write_pointer(ptr, dest)?; @@ -453,10 +457,17 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { ecx.deallocate_ptr( ptr, Some((size, align)), - interpret::MemoryKind::Machine(MemoryKind::Heap), + interpret::MemoryKind::Machine(MemoryKind::Heap { was_made_global: false }), )?; } } + + sym::const_make_global => { + let ptr = ecx.read_pointer(&args[0])?; + ecx.make_const_heap_ptr_global(ptr)?; + ecx.write_pointer(ptr, dest)?; + } + // The intrinsic represents whether the value is known to the optimizer (LLVM). // We're not doing any optimizations here, so there is no optimizer that could know the value. // (We know the value here in the machine of course, but this is the runtime of that code, diff --git a/compiler/rustc_const_eval/src/errors.rs b/compiler/rustc_const_eval/src/errors.rs index 49cd7138748..b6a64035261 100644 --- a/compiler/rustc_const_eval/src/errors.rs +++ b/compiler/rustc_const_eval/src/errors.rs @@ -44,6 +44,14 @@ pub(crate) struct MutablePtrInFinal { } #[derive(Diagnostic)] +#[diag(const_eval_const_heap_ptr_in_final)] +#[note] +pub(crate) struct ConstHeapPtrInFinal { + #[primary_span] + pub span: Span, +} + +#[derive(Diagnostic)] #[diag(const_eval_unstable_in_stable_exposed)] pub(crate) struct UnstableInStableExposed { pub gate: String, diff --git a/compiler/rustc_const_eval/src/interpret/call.rs b/compiler/rustc_const_eval/src/interpret/call.rs index ad3e02580f3..1503f3bcd99 100644 --- a/compiler/rustc_const_eval/src/interpret/call.rs +++ b/compiler/rustc_const_eval/src/interpret/call.rs @@ -6,7 +6,7 @@ use std::borrow::Cow; use either::{Left, Right}; use rustc_abi::{self as abi, ExternAbi, FieldIdx, Integer, VariantIdx}; use rustc_hir::def_id::DefId; -use rustc_middle::ty::layout::{FnAbiOf, IntegerExt, TyAndLayout}; +use rustc_middle::ty::layout::{IntegerExt, TyAndLayout}; use rustc_middle::ty::{self, AdtDef, Instance, Ty, VariantDef}; use rustc_middle::{bug, mir, span_bug}; use rustc_span::sym; diff --git a/compiler/rustc_const_eval/src/interpret/eval_context.rs b/compiler/rustc_const_eval/src/interpret/eval_context.rs index 41fc8d47cd3..11e7706fe60 100644 --- a/compiler/rustc_const_eval/src/interpret/eval_context.rs +++ b/compiler/rustc_const_eval/src/interpret/eval_context.rs @@ -7,8 +7,8 @@ use rustc_hir::def_id::DefId; use rustc_middle::mir::interpret::{ErrorHandled, InvalidMetaKind, ReportedErrorInfo}; use rustc_middle::query::TyCtxtAt; use rustc_middle::ty::layout::{ - self, FnAbiError, FnAbiOfHelpers, FnAbiRequest, LayoutError, LayoutOf, LayoutOfHelpers, - TyAndLayout, + self, FnAbiError, FnAbiOf, FnAbiOfHelpers, FnAbiRequest, LayoutError, LayoutOf, + LayoutOfHelpers, TyAndLayout, }; use rustc_middle::ty::{self, GenericArgsRef, Ty, TyCtxt, TypeFoldable, TypingEnv, Variance}; use rustc_middle::{mir, span_bug}; @@ -92,20 +92,6 @@ impl<'tcx, M: Machine<'tcx>> LayoutOfHelpers<'tcx> for InterpCx<'tcx, M> { } } -impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { - /// This inherent method takes priority over the trait method with the same name in LayoutOf, - /// and allows wrapping the actual [LayoutOf::layout_of] with a tracing span. - /// See [LayoutOf::layout_of] for the original documentation. - #[inline(always)] - pub fn layout_of( - &self, - ty: Ty<'tcx>, - ) -> <InterpCx<'tcx, M> as LayoutOfHelpers<'tcx>>::LayoutOfResult { - let _span = enter_trace_span!(M, "InterpCx::layout_of", "ty = {:?}", ty.kind()); - LayoutOf::layout_of(self, ty) - } -} - impl<'tcx, M: Machine<'tcx>> FnAbiOfHelpers<'tcx> for InterpCx<'tcx, M> { type FnAbiOfResult = Result<&'tcx FnAbi<'tcx, Ty<'tcx>>, InterpErrorKind<'tcx>>; @@ -121,6 +107,43 @@ impl<'tcx, M: Machine<'tcx>> FnAbiOfHelpers<'tcx> for InterpCx<'tcx, M> { } } +impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { + /// This inherent method takes priority over the trait method with the same name in LayoutOf, + /// and allows wrapping the actual [LayoutOf::layout_of] with a tracing span. + /// See [LayoutOf::layout_of] for the original documentation. + #[inline(always)] + pub fn layout_of(&self, ty: Ty<'tcx>) -> <Self as LayoutOfHelpers<'tcx>>::LayoutOfResult { + let _span = enter_trace_span!(M, "InterpCx::layout_of", ty = ?ty.kind()); + LayoutOf::layout_of(self, ty) + } + + /// This inherent method takes priority over the trait method with the same name in FnAbiOf, + /// and allows wrapping the actual [FnAbiOf::fn_abi_of_fn_ptr] with a tracing span. + /// See [FnAbiOf::fn_abi_of_fn_ptr] for the original documentation. + #[inline(always)] + pub fn fn_abi_of_fn_ptr( + &self, + sig: ty::PolyFnSig<'tcx>, + extra_args: &'tcx ty::List<Ty<'tcx>>, + ) -> <Self as FnAbiOfHelpers<'tcx>>::FnAbiOfResult { + let _span = enter_trace_span!(M, "InterpCx::fn_abi_of_fn_ptr", ?sig, ?extra_args); + FnAbiOf::fn_abi_of_fn_ptr(self, sig, extra_args) + } + + /// This inherent method takes priority over the trait method with the same name in FnAbiOf, + /// and allows wrapping the actual [FnAbiOf::fn_abi_of_instance] with a tracing span. + /// See [FnAbiOf::fn_abi_of_instance] for the original documentation. + #[inline(always)] + pub fn fn_abi_of_instance( + &self, + instance: ty::Instance<'tcx>, + extra_args: &'tcx ty::List<Ty<'tcx>>, + ) -> <Self as FnAbiOfHelpers<'tcx>>::FnAbiOfResult { + let _span = enter_trace_span!(M, "InterpCx::fn_abi_of_instance", ?instance, ?extra_args); + FnAbiOf::fn_abi_of_instance(self, instance, extra_args) + } +} + /// Test if it is valid for a MIR assignment to assign `src`-typed place to `dest`-typed value. /// This test should be symmetric, as it is primarily about layout compatibility. pub(super) fn mir_assign_valid_types<'tcx>( diff --git a/compiler/rustc_const_eval/src/interpret/intern.rs b/compiler/rustc_const_eval/src/interpret/intern.rs index f0f958d069e..bb59b9f5418 100644 --- a/compiler/rustc_const_eval/src/interpret/intern.rs +++ b/compiler/rustc_const_eval/src/interpret/intern.rs @@ -26,21 +26,18 @@ use rustc_middle::ty::layout::TyAndLayout; use rustc_span::def_id::LocalDefId; use tracing::{instrument, trace}; -use super::{ - AllocId, Allocation, InterpCx, MPlaceTy, Machine, MemoryKind, PlaceTy, err_ub, interp_ok, -}; -use crate::const_eval; +use super::{AllocId, Allocation, InterpCx, MPlaceTy, Machine, MemoryKind, PlaceTy, interp_ok}; use crate::const_eval::DummyMachine; -use crate::errors::NestedStaticInThreadLocal; +use crate::{const_eval, errors}; -pub trait CompileTimeMachine<'tcx, T> = Machine< +pub trait CompileTimeMachine<'tcx> = Machine< 'tcx, - MemoryKind = T, + MemoryKind = const_eval::MemoryKind, Provenance = CtfeProvenance, ExtraFnVal = !, FrameExtra = (), AllocExtra = (), - MemoryMap = FxIndexMap<AllocId, (MemoryKind<T>, Allocation)>, + MemoryMap = FxIndexMap<AllocId, (MemoryKind<const_eval::MemoryKind>, Allocation)>, > + HasStaticRootDefId; pub trait HasStaticRootDefId { @@ -62,18 +59,32 @@ impl HasStaticRootDefId for const_eval::CompileTimeMachine<'_> { /// already mutable (as a sanity check). /// /// Returns an iterator over all relocations referred to by this allocation. -fn intern_shallow<'tcx, T, M: CompileTimeMachine<'tcx, T>>( +fn intern_shallow<'tcx, M: CompileTimeMachine<'tcx>>( ecx: &mut InterpCx<'tcx, M>, alloc_id: AllocId, mutability: Mutability, disambiguator: Option<&mut DisambiguatorState>, -) -> Result<impl Iterator<Item = CtfeProvenance> + 'tcx, ()> { +) -> Result<impl Iterator<Item = CtfeProvenance> + 'tcx, InternError> { trace!("intern_shallow {:?}", alloc_id); // remove allocation // FIXME(#120456) - is `swap_remove` correct? - let Some((_kind, mut alloc)) = ecx.memory.alloc_map.swap_remove(&alloc_id) else { - return Err(()); + let Some((kind, mut alloc)) = ecx.memory.alloc_map.swap_remove(&alloc_id) else { + return Err(InternError::DanglingPointer); }; + + match kind { + MemoryKind::Machine(const_eval::MemoryKind::Heap { was_made_global }) => { + if !was_made_global { + // Attempting to intern a `const_allocate`d pointer that was not made global via + // `const_make_global`. We want to error here, but we have to first put the + // allocation back into the `alloc_map` to keep things in a consistent state. + ecx.memory.alloc_map.insert(alloc_id, (kind, alloc)); + return Err(InternError::ConstAllocNotGlobal); + } + } + MemoryKind::Stack | MemoryKind::CallerLocation => {} + } + // Set allocation mutability as appropriate. This is used by LLVM to put things into // read-only memory, and also by Miri when evaluating other globals that // access this one. @@ -99,7 +110,7 @@ fn intern_shallow<'tcx, T, M: CompileTimeMachine<'tcx, T>>( } else { ecx.tcx.set_alloc_id_memory(alloc_id, alloc); } - Ok(alloc.0.0.provenance().ptrs().iter().map(|&(_, prov)| prov)) + Ok(alloc.inner().provenance().ptrs().iter().map(|&(_, prov)| prov)) } /// Creates a new `DefId` and feeds all the right queries to make this `DefId` @@ -125,7 +136,7 @@ fn intern_as_new_static<'tcx>( tcx.set_nested_alloc_id_static(alloc_id, feed.def_id()); if tcx.is_thread_local_static(static_id.into()) { - tcx.dcx().emit_err(NestedStaticInThreadLocal { span: tcx.def_span(static_id) }); + tcx.dcx().emit_err(errors::NestedStaticInThreadLocal { span: tcx.def_span(static_id) }); } // These do not inherit the codegen attrs of the parent static allocation, since @@ -151,9 +162,10 @@ pub enum InternKind { } #[derive(Debug)] -pub enum InternResult { - FoundBadMutablePointer, - FoundDanglingPointer, +pub enum InternError { + BadMutablePointer, + DanglingPointer, + ConstAllocNotGlobal, } /// Intern `ret` and everything it references. @@ -163,11 +175,11 @@ pub enum InternResult { /// /// For `InternKind::Static` the root allocation will not be interned, but must be handled by the caller. #[instrument(level = "debug", skip(ecx))] -pub fn intern_const_alloc_recursive<'tcx, M: CompileTimeMachine<'tcx, const_eval::MemoryKind>>( +pub fn intern_const_alloc_recursive<'tcx, M: CompileTimeMachine<'tcx>>( ecx: &mut InterpCx<'tcx, M>, intern_kind: InternKind, ret: &MPlaceTy<'tcx>, -) -> Result<(), InternResult> { +) -> Result<(), InternError> { let mut disambiguator = DisambiguatorState::new(); // We are interning recursively, and for mutability we are distinguishing the "root" allocation @@ -181,7 +193,7 @@ pub fn intern_const_alloc_recursive<'tcx, M: CompileTimeMachine<'tcx, const_eval } InternKind::Static(Mutability::Not) => { ( - // Outermost allocation is mutable if `!Freeze`. + // Outermost allocation is mutable if `!Freeze` i.e. contains interior mutable types. if ret.layout.ty.is_freeze(*ecx.tcx, ecx.typing_env) { Mutability::Not } else { @@ -224,6 +236,7 @@ pub fn intern_const_alloc_recursive<'tcx, M: CompileTimeMachine<'tcx, const_eval // We want to first report "dangling" and then "mutable", so we need to delay reporting these // errors. let mut result = Ok(()); + let mut found_bad_mutable_ptr = false; // Keep interning as long as there are things to intern. // We show errors if there are dangling pointers, or mutable pointers in immutable contexts @@ -278,18 +291,7 @@ pub fn intern_const_alloc_recursive<'tcx, M: CompileTimeMachine<'tcx, const_eval // when there is memory there that someone might expect to be mutable, but we make it immutable. let dangling = !is_already_global && !ecx.memory.alloc_map.contains_key(&alloc_id); if !dangling { - // Found a mutable pointer inside a const where inner allocations should be - // immutable. - if !ecx.tcx.sess.opts.unstable_opts.unleash_the_miri_inside_of_you { - span_bug!( - ecx.tcx.span, - "the static const safety checks accepted a mutable pointer they should not have accepted" - ); - } - // Prefer dangling pointer errors over mutable pointer errors - if result.is_ok() { - result = Err(InternResult::FoundBadMutablePointer); - } + found_bad_mutable_ptr = true; } } if ecx.tcx.try_get_global_alloc(alloc_id).is_some() { @@ -310,18 +312,31 @@ pub fn intern_const_alloc_recursive<'tcx, M: CompileTimeMachine<'tcx, const_eval just_interned.insert(alloc_id); match intern_shallow(ecx, alloc_id, inner_mutability, Some(&mut disambiguator)) { Ok(nested) => todo.extend(nested), - Err(()) => { - ecx.tcx.dcx().delayed_bug("found dangling pointer during const interning"); - result = Err(InternResult::FoundDanglingPointer); + Err(err) => { + ecx.tcx.dcx().delayed_bug("error during const interning"); + result = Err(err); } } } + if found_bad_mutable_ptr && result.is_ok() { + // We found a mutable pointer inside a const where inner allocations should be immutable, + // and there was no other error. This should usually never happen! However, this can happen + // in unleash-miri mode, so report it as a normal error then. + if ecx.tcx.sess.opts.unstable_opts.unleash_the_miri_inside_of_you { + result = Err(InternError::BadMutablePointer); + } else { + span_bug!( + ecx.tcx.span, + "the static const safety checks accepted a mutable pointer they should not have accepted" + ); + } + } result } /// Intern `ret`. This function assumes that `ret` references no other allocation. #[instrument(level = "debug", skip(ecx))] -pub fn intern_const_alloc_for_constprop<'tcx, T, M: CompileTimeMachine<'tcx, T>>( +pub fn intern_const_alloc_for_constprop<'tcx, M: CompileTimeMachine<'tcx>>( ecx: &mut InterpCx<'tcx, M>, alloc_id: AllocId, ) -> InterpResult<'tcx, ()> { @@ -330,10 +345,7 @@ pub fn intern_const_alloc_for_constprop<'tcx, T, M: CompileTimeMachine<'tcx, T>> return interp_ok(()); } // Move allocation to `tcx`. - if let Some(_) = intern_shallow(ecx, alloc_id, Mutability::Not, None) - .map_err(|()| err_ub!(DeadLocal))? - .next() - { + if let Some(_) = intern_shallow(ecx, alloc_id, Mutability::Not, None).unwrap().next() { // We are not doing recursive interning, so we don't currently support provenance. // (If this assertion ever triggers, we should just implement a // proper recursive interning loop -- or just call `intern_const_alloc_recursive`. diff --git a/compiler/rustc_const_eval/src/interpret/intrinsics.rs b/compiler/rustc_const_eval/src/interpret/intrinsics.rs index 22d29eda913..e24a355891d 100644 --- a/compiler/rustc_const_eval/src/interpret/intrinsics.rs +++ b/compiler/rustc_const_eval/src/interpret/intrinsics.rs @@ -4,8 +4,9 @@ use std::assert_matches::assert_matches; -use rustc_abi::{FieldIdx, Size}; +use rustc_abi::{FieldIdx, HasDataLayout, Size}; use rustc_apfloat::ieee::{Double, Half, Quad, Single}; +use rustc_middle::mir::interpret::{read_target_uint, write_target_uint}; use rustc_middle::mir::{self, BinOp, ConstValue, NonDivergingIntrinsic}; use rustc_middle::ty::layout::TyAndLayout; use rustc_middle::ty::{Ty, TyCtxt}; @@ -30,7 +31,7 @@ pub(crate) fn alloc_type_name<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> ConstAll } impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { /// Generates a value of `TypeId` for `ty` in-place. - pub(crate) fn write_type_id( + fn write_type_id( &mut self, ty: Ty<'tcx>, dest: &PlaceTy<'tcx, M::Provenance>, @@ -48,8 +49,8 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { // Here we rely on `TypeId` being a newtype around an array of pointers, so we // first project to its only field and then the array elements. let alloc_id = tcx.reserve_and_set_type_id_alloc(ty); - let first = self.project_field(dest, FieldIdx::ZERO)?; - let mut elem_iter = self.project_array_fields(&first)?; + let arr = self.project_field(dest, FieldIdx::ZERO)?; + let mut elem_iter = self.project_array_fields(&arr)?; while let Some((_, elem)) = elem_iter.next(self)? { // Decorate this part of the hash with provenance; leave the integer part unchanged. let hash_fragment = self.read_scalar(&elem)?.to_target_usize(&tcx)?; @@ -61,6 +62,52 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { interp_ok(()) } + /// Read a value of type `TypeId`, returning the type it represents. + pub(crate) fn read_type_id( + &self, + op: &OpTy<'tcx, M::Provenance>, + ) -> InterpResult<'tcx, Ty<'tcx>> { + // `TypeId` is a newtype around an array of pointers. All pointers must have the same + // provenance, and that provenance represents the type. + let ptr_size = self.pointer_size().bytes_usize(); + let arr = self.project_field(op, FieldIdx::ZERO)?; + + let mut ty_and_hash = None; + let mut elem_iter = self.project_array_fields(&arr)?; + while let Some((idx, elem)) = elem_iter.next(self)? { + let elem = self.read_pointer(&elem)?; + let (elem_ty, elem_hash) = self.get_ptr_type_id(elem)?; + // If this is the first element, remember the type and its hash. + // If this is not the first element, ensure it is consistent with the previous ones. + let full_hash = match ty_and_hash { + None => { + let hash = self.tcx.type_id_hash(elem_ty).as_u128(); + let mut hash_bytes = [0u8; 16]; + write_target_uint(self.data_layout().endian, &mut hash_bytes, hash).unwrap(); + ty_and_hash = Some((elem_ty, hash_bytes)); + hash_bytes + } + Some((ty, hash_bytes)) => { + if ty != elem_ty { + throw_ub_format!( + "invalid `TypeId` value: not all bytes carry the same type id metadata" + ); + } + hash_bytes + } + }; + // Ensure the elem_hash matches the corresponding part of the full hash. + let hash_frag = &full_hash[(idx as usize) * ptr_size..][..ptr_size]; + if read_target_uint(self.data_layout().endian, hash_frag).unwrap() != elem_hash.into() { + throw_ub_format!( + "invalid `TypeId` value: the hash does not match the type id metadata" + ); + } + } + + interp_ok(ty_and_hash.unwrap().0) + } + /// Returns `true` if emulation happened. /// Here we implement the intrinsics that are common to all Miri instances; individual machines can add their own /// intrinsic handling. @@ -97,47 +144,9 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { self.write_type_id(tp_ty, dest)?; } sym::type_id_eq => { - // Both operands are `TypeId`, which is a newtype around an array of pointers. - // Project until we have the array elements. - let a_fields = self.project_field(&args[0], FieldIdx::ZERO)?; - let b_fields = self.project_field(&args[1], FieldIdx::ZERO)?; - - let mut a_fields = self.project_array_fields(&a_fields)?; - let mut b_fields = self.project_array_fields(&b_fields)?; - - let mut provenance_a = None; - let mut provenance_b = None; - let mut provenance_matches = true; - - while let Some((i, a)) = a_fields.next(self)? { - let (_, b) = b_fields.next(self)?.unwrap(); - - let a = self.deref_pointer(&a)?; - let (a, offset_a) = self.get_ptr_type_id(a.ptr())?; - - let b = self.deref_pointer(&b)?; - let (b, offset_b) = self.get_ptr_type_id(b.ptr())?; - - if *provenance_a.get_or_insert(a) != a { - throw_ub_format!( - "type_id_eq: the first TypeId argument is invalid, the provenance of chunk {i} does not match the first chunk's" - ) - } - if *provenance_b.get_or_insert(b) != b { - throw_ub_format!( - "type_id_eq: the second TypeId argument is invalid, the provenance of chunk {i} does not match the first chunk's" - ) - } - provenance_matches &= a == b; - - if offset_a != offset_b && provenance_matches { - throw_ub_format!( - "type_id_eq: one of the TypeId arguments is invalid, chunk {i} of the hash does not match the type it represents" - ) - } - } - - self.write_scalar(Scalar::from_bool(provenance_matches), dest)?; + let a_ty = self.read_type_id(&args[0])?; + let b_ty = self.read_type_id(&args[1])?; + self.write_scalar(Scalar::from_bool(a_ty == b_ty), dest)?; } sym::variant_count => { let tp_ty = instance.args.type_at(0); diff --git a/compiler/rustc_const_eval/src/interpret/machine.rs b/compiler/rustc_const_eval/src/interpret/machine.rs index d150ed69250..e981f3973ae 100644 --- a/compiler/rustc_const_eval/src/interpret/machine.rs +++ b/compiler/rustc_const_eval/src/interpret/machine.rs @@ -649,6 +649,7 @@ pub macro compile_time_machine(<$tcx: lifetime>) { type ExtraFnVal = !; + type MemoryKind = $crate::const_eval::MemoryKind; type MemoryMap = rustc_data_structures::fx::FxIndexMap<AllocId, (MemoryKind<Self::MemoryKind>, Allocation)>; const GLOBAL_KIND: Option<Self::MemoryKind> = None; // no copying of globals from `tcx` to machine memory diff --git a/compiler/rustc_const_eval/src/interpret/memory.rs b/compiler/rustc_const_eval/src/interpret/memory.rs index 6414821e21d..47228de5213 100644 --- a/compiler/rustc_const_eval/src/interpret/memory.rs +++ b/compiler/rustc_const_eval/src/interpret/memory.rs @@ -26,6 +26,7 @@ use super::{ Misalignment, Pointer, PointerArithmetic, Provenance, Scalar, alloc_range, err_ub, err_ub_custom, interp_ok, throw_ub, throw_ub_custom, throw_unsup, throw_unsup_format, }; +use crate::const_eval::ConstEvalErrKind; use crate::fluent_generated as fluent; #[derive(Debug, PartialEq, Copy, Clone)] @@ -311,6 +312,51 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { interp_ok(new_ptr) } + /// Mark the `const_allocate`d allocation `ptr` points to as immutable so we can intern it. + pub fn make_const_heap_ptr_global( + &mut self, + ptr: Pointer<Option<CtfeProvenance>>, + ) -> InterpResult<'tcx> + where + M: Machine<'tcx, MemoryKind = crate::const_eval::MemoryKind, Provenance = CtfeProvenance>, + { + let (alloc_id, offset, _) = self.ptr_get_alloc_id(ptr, 0)?; + if offset.bytes() != 0 { + return Err(ConstEvalErrKind::ConstMakeGlobalWithOffset(ptr)).into(); + } + + if matches!(self.tcx.try_get_global_alloc(alloc_id), Some(_)) { + // This points to something outside the current interpreter. + return Err(ConstEvalErrKind::ConstMakeGlobalPtrIsNonHeap(ptr)).into(); + } + + // If we can't find it in `alloc_map` it must be dangling (because we don't use + // `extra_fn_ptr_map` in const-eval). + let (kind, alloc) = self + .memory + .alloc_map + .get_mut_or(alloc_id, || Err(ConstEvalErrKind::ConstMakeGlobalWithDanglingPtr(ptr)))?; + + // Ensure this is actually a *heap* allocation, and record it as made-global. + match kind { + MemoryKind::Stack | MemoryKind::CallerLocation => { + return Err(ConstEvalErrKind::ConstMakeGlobalPtrIsNonHeap(ptr)).into(); + } + MemoryKind::Machine(crate::const_eval::MemoryKind::Heap { was_made_global }) => { + if *was_made_global { + return Err(ConstEvalErrKind::ConstMakeGlobalPtrAlreadyMadeGlobal(alloc_id)) + .into(); + } + *was_made_global = true; + } + } + + // Prevent further mutation, this is now an immutable global. + alloc.mutability = Mutability::Not; + + interp_ok(()) + } + #[instrument(skip(self), level = "debug")] pub fn deallocate_ptr( &mut self, @@ -890,7 +936,7 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { if let Some(fn_val) = self.get_fn_alloc(id) { let align = match fn_val { FnVal::Instance(instance) => { - self.tcx.codegen_fn_attrs(instance.def_id()).alignment.unwrap_or(Align::ONE) + self.tcx.codegen_instance_attrs(instance.def).alignment.unwrap_or(Align::ONE) } // Machine-specific extra functions currently do not support alignment restrictions. FnVal::Other(_) => Align::ONE, @@ -951,12 +997,12 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { pub fn get_ptr_type_id( &self, ptr: Pointer<Option<M::Provenance>>, - ) -> InterpResult<'tcx, (Ty<'tcx>, Size)> { + ) -> InterpResult<'tcx, (Ty<'tcx>, u64)> { let (alloc_id, offset, _meta) = self.ptr_get_alloc_id(ptr, 0)?; let GlobalAlloc::TypeId { ty } = self.tcx.global_alloc(alloc_id) else { - throw_ub_format!("type_id_eq: `TypeId` provenance is not a type id") + throw_ub_format!("invalid `TypeId` value: not all bytes carry type id metadata") }; - interp_ok((ty, offset)) + interp_ok((ty, offset.bytes())) } pub fn get_ptr_fn( diff --git a/compiler/rustc_const_eval/src/interpret/mod.rs b/compiler/rustc_const_eval/src/interpret/mod.rs index 2fc372dd019..2f365ec77b3 100644 --- a/compiler/rustc_const_eval/src/interpret/mod.rs +++ b/compiler/rustc_const_eval/src/interpret/mod.rs @@ -26,7 +26,7 @@ pub use self::call::FnArg; pub use self::eval_context::{InterpCx, format_interp_error}; use self::eval_context::{from_known_layout, mir_assign_valid_types}; pub use self::intern::{ - HasStaticRootDefId, InternKind, InternResult, intern_const_alloc_for_constprop, + HasStaticRootDefId, InternError, InternKind, intern_const_alloc_for_constprop, intern_const_alloc_recursive, }; pub use self::machine::{AllocMap, Machine, MayLeak, ReturnAction, compile_time_machine}; diff --git a/compiler/rustc_const_eval/src/interpret/stack.rs b/compiler/rustc_const_eval/src/interpret/stack.rs index b6ba069526c..2e99bb4209f 100644 --- a/compiler/rustc_const_eval/src/interpret/stack.rs +++ b/compiler/rustc_const_eval/src/interpret/stack.rs @@ -12,6 +12,7 @@ use rustc_middle::ty::{self, Ty, TyCtxt}; use rustc_middle::{bug, mir}; use rustc_mir_dataflow::impls::always_storage_live_locals; use rustc_span::Span; +use tracing::field::Empty; use tracing::{info_span, instrument, trace}; use super::{ @@ -396,7 +397,11 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { // Finish things up. M::after_stack_push(self)?; self.frame_mut().loc = Left(mir::Location::START); - let span = info_span!("frame", "{}", instance); + // `tracing_separate_thread` is used to instruct the chrome_tracing [tracing::Layer] in Miri + // to put the "frame" span on a separate trace thread/line than other spans, to make the + // visualization in https://ui.perfetto.dev easier to interpret. It is set to a value of + // [tracing::field::Empty] so that other tracing layers (e.g. the logger) will ignore it. + let span = info_span!("frame", tracing_separate_thread = Empty, "{}", instance); self.frame_mut().tracing_span.enter(span); interp_ok(()) diff --git a/compiler/rustc_const_eval/src/interpret/step.rs b/compiler/rustc_const_eval/src/interpret/step.rs index 833fcc38817..629dcc3523c 100644 --- a/compiler/rustc_const_eval/src/interpret/step.rs +++ b/compiler/rustc_const_eval/src/interpret/step.rs @@ -5,7 +5,6 @@ use either::Either; use rustc_abi::{FIRST_VARIANT, FieldIdx}; use rustc_index::IndexSlice; -use rustc_middle::ty::layout::FnAbiOf; use rustc_middle::ty::{self, Instance, Ty}; use rustc_middle::{bug, mir, span_bug}; use rustc_span::source_map::Spanned; diff --git a/compiler/rustc_const_eval/src/interpret/validity.rs b/compiler/rustc_const_eval/src/interpret/validity.rs index fc44490c96d..62f591ceaa9 100644 --- a/compiler/rustc_const_eval/src/interpret/validity.rs +++ b/compiler/rustc_const_eval/src/interpret/validity.rs @@ -558,7 +558,15 @@ impl<'rt, 'tcx, M: Machine<'tcx>> ValidityVisitor<'rt, 'tcx, M> { { // Everything should be already interned. let Some(global_alloc) = self.ecx.tcx.try_get_global_alloc(alloc_id) else { - assert!(self.ecx.memory.alloc_map.get(alloc_id).is_none()); + if self.ecx.memory.alloc_map.contains_key(&alloc_id) { + // This can happen when interning didn't complete due to, e.g. + // missing `make_global`. This must mean other errors are already + // being reported. + self.ecx.tcx.dcx().delayed_bug( + "interning did not complete, there should be an error", + ); + return interp_ok(()); + } // We can't have *any* references to non-existing allocations in const-eval // as the rest of rustc isn't happy with them... so we throw an error, even // though for zero-sized references this isn't really UB. diff --git a/compiler/rustc_const_eval/src/util/check_validity_requirement.rs b/compiler/rustc_const_eval/src/util/check_validity_requirement.rs index 4ca39bbc68e..b1f29598750 100644 --- a/compiler/rustc_const_eval/src/util/check_validity_requirement.rs +++ b/compiler/rustc_const_eval/src/util/check_validity_requirement.rs @@ -52,9 +52,9 @@ fn check_validity_requirement_strict<'tcx>( let mut cx = InterpCx::new(cx.tcx(), DUMMY_SP, cx.typing_env, machine); - let allocated = cx - .allocate(ty, MemoryKind::Machine(crate::const_eval::MemoryKind::Heap)) - .expect("OOM: failed to allocate for uninit check"); + // It doesn't really matter which `MemoryKind` we use here, `Stack` is the least wrong. + let allocated = + cx.allocate(ty, MemoryKind::Stack).expect("OOM: failed to allocate for uninit check"); if kind == ValidityRequirement::Zero { cx.write_bytes_ptr( @@ -184,9 +184,10 @@ pub(crate) fn validate_scalar_in_layout<'tcx>( let Ok(layout) = cx.layout_of(ty) else { bug!("could not compute layout of {scalar:?}:{ty:?}") }; - let allocated = cx - .allocate(layout, MemoryKind::Machine(crate::const_eval::MemoryKind::Heap)) - .expect("OOM: failed to allocate for uninit check"); + + // It doesn't really matter which `MemoryKind` we use here, `Stack` is the least wrong. + let allocated = + cx.allocate(layout, MemoryKind::Stack).expect("OOM: failed to allocate for uninit check"); cx.write_scalar(scalar, &allocated).unwrap(); diff --git a/compiler/rustc_driver_impl/src/lib.rs b/compiler/rustc_driver_impl/src/lib.rs index 18490385455..f3ed6042105 100644 --- a/compiler/rustc_driver_impl/src/lib.rs +++ b/compiler/rustc_driver_impl/src/lib.rs @@ -1237,9 +1237,55 @@ pub fn handle_options(early_dcx: &EarlyDiagCtxt, args: &[String]) -> Option<geto return None; } + warn_on_confusing_output_filename_flag(early_dcx, &matches, args); + Some(matches) } +/// Warn if `-o` is used without a space between the flag name and the value +/// and the value is a high-value confusables, +/// e.g. `-optimize` instead of `-o optimize`, see issue #142812. +fn warn_on_confusing_output_filename_flag( + early_dcx: &EarlyDiagCtxt, + matches: &getopts::Matches, + args: &[String], +) { + fn eq_ignore_separators(s1: &str, s2: &str) -> bool { + let s1 = s1.replace('-', "_"); + let s2 = s2.replace('-', "_"); + s1 == s2 + } + + if let Some(name) = matches.opt_str("o") + && let Some(suspect) = args.iter().find(|arg| arg.starts_with("-o") && *arg != "-o") + { + let filename = suspect.strip_prefix("-").unwrap_or(suspect); + let optgroups = config::rustc_optgroups(); + let fake_args = ["optimize", "o0", "o1", "o2", "o3", "ofast", "og", "os", "oz"]; + + // Check if provided filename might be confusing in conjunction with `-o` flag, + // i.e. consider `-o{filename}` such as `-optimize` with `filename` being `ptimize`. + // There are high-value confusables, for example: + // - Long name of flags, e.g. `--out-dir` vs `-out-dir` + // - C compiler flag, e.g. `optimize`, `o0`, `o1`, `o2`, `o3`, `ofast`. + // - Codegen flags, e.g. `pt-level` of `-opt-level`. + if optgroups.iter().any(|option| eq_ignore_separators(option.long_name(), filename)) + || config::CG_OPTIONS.iter().any(|option| eq_ignore_separators(option.name(), filename)) + || fake_args.iter().any(|arg| eq_ignore_separators(arg, filename)) + { + early_dcx.early_warn( + "option `-o` has no space between flag name and value, which can be confusing", + ); + early_dcx.early_note(format!( + "output filename `-o {name}` is applied instead of a flag named `o{name}`" + )); + early_dcx.early_help(format!( + "insert a space between `-o` and `{name}` if this is intentional: `-o {name}`" + )); + } + } +} + fn parse_crate_attrs<'a>(sess: &'a Session) -> PResult<'a, ast::AttrVec> { let mut parser = unwrap_or_emit_fatal(match &sess.io.input { Input::File(file) => new_parser_from_file(&sess.psess, file, None), diff --git a/compiler/rustc_expand/src/base.rs b/compiler/rustc_expand/src/base.rs index ce3006c2604..1928cfd9048 100644 --- a/compiler/rustc_expand/src/base.rs +++ b/compiler/rustc_expand/src/base.rs @@ -1062,7 +1062,7 @@ pub trait ResolverExpand { fn next_node_id(&mut self) -> NodeId; fn invocation_parent(&self, id: LocalExpnId) -> LocalDefId; - fn resolve_dollar_crates(&mut self); + fn resolve_dollar_crates(&self); fn visit_ast_fragment_with_placeholders( &mut self, expn_id: LocalExpnId, diff --git a/compiler/rustc_expand/src/build.rs b/compiler/rustc_expand/src/build.rs index 85683c1a03f..51d6e43ab67 100644 --- a/compiler/rustc_expand/src/build.rs +++ b/compiler/rustc_expand/src/build.rs @@ -3,8 +3,8 @@ use rustc_ast::token::Delimiter; use rustc_ast::tokenstream::TokenStream; use rustc_ast::util::literal; use rustc_ast::{ - self as ast, AnonConst, AttrVec, BlockCheckMode, Expr, LocalKind, MatchKind, PatKind, UnOp, - attr, token, tokenstream, + self as ast, AnonConst, AttrItem, AttrVec, BlockCheckMode, Expr, LocalKind, MatchKind, PatKind, + UnOp, attr, token, tokenstream, }; use rustc_span::source_map::Spanned; use rustc_span::{DUMMY_SP, Ident, Span, Symbol, kw, sym}; @@ -766,4 +766,10 @@ impl<'a> ExtCtxt<'a> { span, ) } + + // Builds an attribute fully manually. + pub fn attr_nested(&self, inner: AttrItem, span: Span) -> ast::Attribute { + let g = &self.sess.psess.attr_id_generator; + attr::mk_attr_from_item(g, inner, None, ast::AttrStyle::Outer, span) + } } diff --git a/compiler/rustc_expand/src/config.rs b/compiler/rustc_expand/src/config.rs index 6922ddfd6bd..83a8d601afe 100644 --- a/compiler/rustc_expand/src/config.rs +++ b/compiler/rustc_expand/src/config.rs @@ -12,7 +12,7 @@ use rustc_ast::{ }; use rustc_attr_parsing as attr; use rustc_attr_parsing::{ - AttributeParser, CFG_TEMPLATE, EvalConfigResult, eval_config_entry, parse_cfg_attr, + AttributeParser, CFG_TEMPLATE, EvalConfigResult, ShouldEmit, eval_config_entry, parse_cfg_attr, }; use rustc_data_structures::flat_map_in_place::FlatMapInPlace; use rustc_feature::{ @@ -167,7 +167,9 @@ pub fn pre_configure_attrs(sess: &Session, attrs: &[Attribute]) -> ast::AttrVec .flat_map(|attr| strip_unconfigured.process_cfg_attr(attr)) .take_while(|attr| { !is_cfg(attr) - || strip_unconfigured.cfg_true(attr, strip_unconfigured.lint_node_id).as_bool() + || strip_unconfigured + .cfg_true(attr, strip_unconfigured.lint_node_id, ShouldEmit::Nothing) + .as_bool() }) .collect() } @@ -401,10 +403,18 @@ impl<'a> StripUnconfigured<'a> { /// Determines if a node with the given attributes should be included in this configuration. fn in_cfg(&self, attrs: &[Attribute]) -> bool { - attrs.iter().all(|attr| !is_cfg(attr) || self.cfg_true(attr, self.lint_node_id).as_bool()) + attrs.iter().all(|attr| { + !is_cfg(attr) + || self.cfg_true(attr, self.lint_node_id, ShouldEmit::ErrorsAndLints).as_bool() + }) } - pub(crate) fn cfg_true(&self, attr: &Attribute, node: NodeId) -> EvalConfigResult { + pub(crate) fn cfg_true( + &self, + attr: &Attribute, + node: NodeId, + emit_errors: ShouldEmit, + ) -> EvalConfigResult { // We need to run this to do basic validation of the attribute, such as that lits are valid, etc // FIXME(jdonszelmann) this should not be necessary in the future match validate_attr::parse_meta(&self.sess.psess, attr) { @@ -428,7 +438,7 @@ impl<'a> StripUnconfigured<'a> { attr.span, node, self.features, - true, + emit_errors, parse_cfg_attr, &CFG_TEMPLATE, ) else { @@ -436,7 +446,7 @@ impl<'a> StripUnconfigured<'a> { return EvalConfigResult::True; }; - eval_config_entry(self.sess, &cfg, self.lint_node_id, self.features) + eval_config_entry(self.sess, &cfg, self.lint_node_id, self.features, emit_errors) } /// If attributes are not allowed on expressions, emit an error for `attr` diff --git a/compiler/rustc_expand/src/expand.rs b/compiler/rustc_expand/src/expand.rs index f99060e9a21..79ec79a2fdf 100644 --- a/compiler/rustc_expand/src/expand.rs +++ b/compiler/rustc_expand/src/expand.rs @@ -13,7 +13,7 @@ use rustc_ast::{ MetaItemKind, ModKind, NodeId, PatKind, StmtKind, TyKind, token, }; use rustc_ast_pretty::pprust; -use rustc_attr_parsing::EvalConfigResult; +use rustc_attr_parsing::{EvalConfigResult, ShouldEmit}; use rustc_data_structures::flat_map_in_place::FlatMapInPlace; use rustc_errors::PResult; use rustc_feature::Features; @@ -2171,7 +2171,7 @@ impl<'a, 'b> InvocationCollector<'a, 'b> { attr: ast::Attribute, pos: usize, ) -> EvalConfigResult { - let res = self.cfg().cfg_true(&attr, node.node_id()); + let res = self.cfg().cfg_true(&attr, node.node_id(), ShouldEmit::ErrorsAndLints); if res.as_bool() { // A trace attribute left in AST in place of the original `cfg` attribute. // It can later be used by lints or other diagnostics. diff --git a/compiler/rustc_feature/src/builtin_attrs.rs b/compiler/rustc_feature/src/builtin_attrs.rs index 7d9915d7f68..74872504b79 100644 --- a/compiler/rustc_feature/src/builtin_attrs.rs +++ b/compiler/rustc_feature/src/builtin_attrs.rs @@ -614,6 +614,7 @@ pub static BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[ ), // RFC 2632 + // FIXME(const_trait_impl) remove this gated!( const_trait, Normal, template!(Word), WarnFollowing, EncodeCrossCrate::No, const_trait_impl, "`const_trait` is a temporary placeholder for marking a trait that is suitable for `const` \ @@ -684,6 +685,10 @@ pub static BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[ EncodeCrossCrate::Yes ), ungated!( + unstable_feature_bound, Normal, template!(Word, List: "feat1, feat2, ..."), + DuplicatesOk, EncodeCrossCrate::No, + ), + ungated!( rustc_const_unstable, Normal, template!(List: r#"feature = "name""#), DuplicatesOk, EncodeCrossCrate::Yes ), diff --git a/compiler/rustc_hir/src/def.rs b/compiler/rustc_hir/src/def.rs index df010f87098..ca57c4f3164 100644 --- a/compiler/rustc_hir/src/def.rs +++ b/compiler/rustc_hir/src/def.rs @@ -295,6 +295,12 @@ impl DefKind { } } + /// This is a "module" in name resolution sense. + #[inline] + pub fn is_module_like(self) -> bool { + matches!(self, DefKind::Mod | DefKind::Enum | DefKind::Trait) + } + #[inline] pub fn is_fn_like(self) -> bool { matches!( @@ -720,6 +726,15 @@ impl<Id> Res<Id> { } } + /// If this is a "module" in name resolution sense, return its `DefId`. + #[inline] + pub fn module_like_def_id(&self) -> Option<DefId> { + match self { + Res::Def(def_kind, def_id) if def_kind.is_module_like() => Some(*def_id), + _ => None, + } + } + /// A human readable name for the res kind ("function", "module", etc.). pub fn descr(&self) -> &'static str { match *self { diff --git a/compiler/rustc_hir/src/definitions.rs b/compiler/rustc_hir/src/definitions.rs index f93b9e5af53..698406d53a4 100644 --- a/compiler/rustc_hir/src/definitions.rs +++ b/compiler/rustc_hir/src/definitions.rs @@ -140,7 +140,9 @@ impl DefKey { pub(crate) fn compute_stable_hash(&self, parent: DefPathHash) -> DefPathHash { let mut hasher = StableHasher::new(); - parent.hash(&mut hasher); + // The new path is in the same crate as `parent`, and will contain the stable_crate_id. + // Therefore, we only need to include information of the parent's local hash. + parent.local_hash().hash(&mut hasher); let DisambiguatedDefPathData { ref data, disambiguator } = self.disambiguated_data; @@ -181,32 +183,26 @@ pub struct DisambiguatedDefPathData { } impl DisambiguatedDefPathData { - pub fn fmt_maybe_verbose(&self, writer: &mut impl Write, verbose: bool) -> fmt::Result { + pub fn as_sym(&self, verbose: bool) -> Symbol { match self.data.name() { DefPathDataName::Named(name) => { if verbose && self.disambiguator != 0 { - write!(writer, "{}#{}", name, self.disambiguator) + Symbol::intern(&format!("{}#{}", name, self.disambiguator)) } else { - writer.write_str(name.as_str()) + name } } DefPathDataName::Anon { namespace } => { if let DefPathData::AnonAssocTy(method) = self.data { - write!(writer, "{}::{{{}#{}}}", method, namespace, self.disambiguator) + Symbol::intern(&format!("{}::{{{}#{}}}", method, namespace, self.disambiguator)) } else { - write!(writer, "{{{}#{}}}", namespace, self.disambiguator) + Symbol::intern(&format!("{{{}#{}}}", namespace, self.disambiguator)) } } } } } -impl fmt::Display for DisambiguatedDefPathData { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - self.fmt_maybe_verbose(f, true) - } -} - #[derive(Clone, Debug, Encodable, Decodable)] pub struct DefPath { /// The path leading from the crate root to the item. @@ -250,7 +246,7 @@ impl DefPath { let mut s = String::with_capacity(self.data.len() * 16); for component in &self.data { - write!(s, "::{component}").unwrap(); + write!(s, "::{}", component.as_sym(true)).unwrap(); } s @@ -266,7 +262,7 @@ impl DefPath { for component in &self.data { s.extend(opt_delimiter); opt_delimiter = Some('-'); - write!(s, "{component}").unwrap(); + write!(s, "{}", component.as_sym(true)).unwrap(); } s @@ -361,8 +357,16 @@ impl Definitions { }, }; - let parent_hash = DefPathHash::new(stable_crate_id, Hash64::ZERO); - let def_path_hash = key.compute_stable_hash(parent_hash); + // We want *both* halves of a DefPathHash to depend on the crate-id of the defining crate. + // The crate-id can be more easily changed than the DefPath of an item, so, in the case of + // a crate-local DefPathHash collision, the user can simply "roll the dice again" for all + // DefPathHashes in the crate by changing the crate disambiguator (e.g. via bumping the + // crate's version number). + // + // Children paths will only hash the local portion, and still inherit the change to the + // root hash. + let def_path_hash = + DefPathHash::new(stable_crate_id, Hash64::new(stable_crate_id.as_u64())); // Create the root definition. let mut table = DefPathTable::new(stable_crate_id); diff --git a/compiler/rustc_hir/src/hir.rs b/compiler/rustc_hir/src/hir.rs index 159518a8d87..e7898648c2b 100644 --- a/compiler/rustc_hir/src/hir.rs +++ b/compiler/rustc_hir/src/hir.rs @@ -7,7 +7,7 @@ use rustc_ast::token::CommentKind; use rustc_ast::util::parser::ExprPrecedence; use rustc_ast::{ self as ast, FloatTy, InlineAsmOptions, InlineAsmTemplatePiece, IntTy, Label, LitIntType, - LitKind, TraitObjectSyntax, UintTy, UnsafeBinderCastKind, + LitKind, TraitObjectSyntax, UintTy, UnsafeBinderCastKind, join_path_idents, }; pub use rustc_ast::{ AssignOp, AssignOpKind, AttrId, AttrStyle, BinOp, BinOpKind, BindingMode, BorrowKind, @@ -1168,7 +1168,7 @@ impl AttrPath { impl fmt::Display for AttrPath { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { - write!(f, "{}", self.segments.iter().map(|i| i.to_string()).collect::<Vec<_>>().join("::")) + write!(f, "{}", join_path_idents(&self.segments)) } } @@ -4163,6 +4163,7 @@ impl<'hir> Item<'hir> { expect_trait, ( + Constness, IsAuto, Safety, Ident, @@ -4170,8 +4171,8 @@ impl<'hir> Item<'hir> { GenericBounds<'hir>, &'hir [TraitItemId] ), - ItemKind::Trait(is_auto, safety, ident, generics, bounds, items), - (*is_auto, *safety, *ident, generics, bounds, items); + ItemKind::Trait(constness, is_auto, safety, ident, generics, bounds, items), + (*constness, *is_auto, *safety, *ident, generics, bounds, items); expect_trait_alias, (Ident, &'hir Generics<'hir>, GenericBounds<'hir>), ItemKind::TraitAlias(ident, generics, bounds), (*ident, generics, bounds); @@ -4341,7 +4342,15 @@ pub enum ItemKind<'hir> { /// A union definition, e.g., `union Foo<A, B> {x: A, y: B}`. Union(Ident, &'hir Generics<'hir>, VariantData<'hir>), /// A trait definition. - Trait(IsAuto, Safety, Ident, &'hir Generics<'hir>, GenericBounds<'hir>, &'hir [TraitItemId]), + Trait( + Constness, + IsAuto, + Safety, + Ident, + &'hir Generics<'hir>, + GenericBounds<'hir>, + &'hir [TraitItemId], + ), /// A trait alias. TraitAlias(Ident, &'hir Generics<'hir>, GenericBounds<'hir>), @@ -4385,7 +4394,7 @@ impl ItemKind<'_> { | ItemKind::Enum(ident, ..) | ItemKind::Struct(ident, ..) | ItemKind::Union(ident, ..) - | ItemKind::Trait(_, _, ident, ..) + | ItemKind::Trait(_, _, _, ident, ..) | ItemKind::TraitAlias(ident, ..) => Some(ident), ItemKind::Use(_, UseKind::Glob | UseKind::ListStem) @@ -4403,7 +4412,7 @@ impl ItemKind<'_> { | ItemKind::Enum(_, generics, _) | ItemKind::Struct(_, generics, _) | ItemKind::Union(_, generics, _) - | ItemKind::Trait(_, _, _, generics, _, _) + | ItemKind::Trait(_, _, _, _, generics, _, _) | ItemKind::TraitAlias(_, generics, _) | ItemKind::Impl(Impl { generics, .. }) => generics, _ => return None, diff --git a/compiler/rustc_hir/src/intravisit.rs b/compiler/rustc_hir/src/intravisit.rs index 3edb94c28da..f33915d5b07 100644 --- a/compiler/rustc_hir/src/intravisit.rs +++ b/compiler/rustc_hir/src/intravisit.rs @@ -618,7 +618,15 @@ pub fn walk_item<'v, V: Visitor<'v>>(visitor: &mut V, item: &'v Item<'v>) -> V:: try_visit!(visitor.visit_generics(generics)); try_visit!(visitor.visit_variant_data(struct_definition)); } - ItemKind::Trait(_is_auto, _safety, ident, ref generics, bounds, trait_item_refs) => { + ItemKind::Trait( + _constness, + _is_auto, + _safety, + ident, + ref generics, + bounds, + trait_item_refs, + ) => { try_visit!(visitor.visit_ident(ident)); try_visit!(visitor.visit_generics(generics)); walk_list!(visitor, visit_param_bound, bounds); diff --git a/compiler/rustc_hir/src/tests.rs b/compiler/rustc_hir/src/tests.rs index 18c2bfdac8c..3b797c1f103 100644 --- a/compiler/rustc_hir/src/tests.rs +++ b/compiler/rustc_hir/src/tests.rs @@ -28,7 +28,8 @@ fn def_path_hash_depends_on_crate_id() { assert_ne!(h0.local_hash(), h1.local_hash()); fn mk_test_hash(stable_crate_id: StableCrateId) -> DefPathHash { - let parent_hash = DefPathHash::new(stable_crate_id, Hash64::ZERO); + let parent_hash = + DefPathHash::new(stable_crate_id, Hash64::new(stable_crate_id.as_u64())); let key = DefKey { parent: None, diff --git a/compiler/rustc_hir_analysis/messages.ftl b/compiler/rustc_hir_analysis/messages.ftl index 529d3578985..e38ca9e80ce 100644 --- a/compiler/rustc_hir_analysis/messages.ftl +++ b/compiler/rustc_hir_analysis/messages.ftl @@ -117,15 +117,15 @@ hir_analysis_coercion_between_struct_same_note = expected coercion between the s hir_analysis_coercion_between_struct_single_note = expected a single field to be coerced, none found -hir_analysis_const_bound_for_non_const_trait = `{$modifier}` can only be applied to `#[const_trait]` traits +hir_analysis_const_bound_for_non_const_trait = `{$modifier}` can only be applied to `const` traits .label = can't be applied to `{$trait_name}` - .note = `{$trait_name}` can't be used with `{$modifier}` because it isn't annotated with `#[const_trait]` - .suggestion = {$suggestion_pre}mark `{$trait_name}` as `#[const_trait]` to allow it to have `const` implementations + .note = `{$trait_name}` can't be used with `{$modifier}` because it isn't `const` + .suggestion = {$suggestion_pre}mark `{$trait_name}` as `const` to allow it to have `const` implementations -hir_analysis_const_impl_for_non_const_trait = const `impl` for trait `{$trait_name}` which is not marked with `#[const_trait]` +hir_analysis_const_impl_for_non_const_trait = const `impl` for trait `{$trait_name}` which is not `const` .label = this trait is not `const` - .suggestion = {$suggestion_pre}mark `{$trait_name}` as `#[const_trait]` to allow it to have `const` implementations - .note = marking a trait with `#[const_trait]` ensures all default method bodies are `const` + .suggestion = {$suggestion_pre}mark `{$trait_name}` as `const` to allow it to have `const` implementations + .note = marking a trait with `const` ensures all default method bodies are `const` .adding = adding a non-const method body in the future would be a breaking change hir_analysis_const_param_ty_impl_on_non_adt = @@ -158,7 +158,7 @@ hir_analysis_dispatch_from_dyn_zst = the trait `DispatchFromDyn` may only be imp hir_analysis_drop_impl_negative = negative `Drop` impls are not supported hir_analysis_drop_impl_on_wrong_item = - the `Drop` trait may only be implemented for local structs, enums, and unions + the `{$trait_}` trait may only be implemented for local structs, enums, and unions .label = must be a struct, enum, or union in the current crate hir_analysis_drop_impl_reservation = reservation `Drop` impls are not supported diff --git a/compiler/rustc_hir_analysis/src/check/check.rs b/compiler/rustc_hir_analysis/src/check/check.rs index 70fbb8a543e..03c026cd6c8 100644 --- a/compiler/rustc_hir_analysis/src/check/check.rs +++ b/compiler/rustc_hir_analysis/src/check/check.rs @@ -889,8 +889,6 @@ pub(crate) fn check_item_type(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Result<(), tcx.ensure_ok().predicates_of(def_id); tcx.ensure_ok().explicit_item_bounds(def_id); tcx.ensure_ok().explicit_item_self_bounds(def_id); - tcx.ensure_ok().item_bounds(def_id); - tcx.ensure_ok().item_self_bounds(def_id); if tcx.is_conditionally_const(def_id) { tcx.ensure_ok().explicit_implied_const_bounds(def_id); tcx.ensure_ok().const_conditions(def_id); @@ -1044,8 +1042,12 @@ pub(crate) fn check_item_type(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Result<(), let has_type = match assoc_item.container { ty::AssocItemContainer::Impl => true, ty::AssocItemContainer::Trait => { - tcx.ensure_ok().item_bounds(def_id); - tcx.ensure_ok().item_self_bounds(def_id); + tcx.ensure_ok().explicit_item_bounds(def_id); + tcx.ensure_ok().explicit_item_self_bounds(def_id); + if tcx.is_conditionally_const(def_id) { + tcx.ensure_ok().explicit_implied_const_bounds(def_id); + tcx.ensure_ok().const_conditions(def_id); + } res = res.and(check_trait_item(tcx, def_id)); assoc_item.defaultness(tcx).has_value() } diff --git a/compiler/rustc_hir_analysis/src/check/intrinsic.rs b/compiler/rustc_hir_analysis/src/check/intrinsic.rs index dcab6ef1c5a..6e5fe3823ab 100644 --- a/compiler/rustc_hir_analysis/src/check/intrinsic.rs +++ b/compiler/rustc_hir_analysis/src/check/intrinsic.rs @@ -422,6 +422,9 @@ pub(crate) fn check_intrinsic_type( vec![Ty::new_mut_ptr(tcx, tcx.types.u8), tcx.types.usize, tcx.types.usize], tcx.types.unit, ), + sym::const_make_global => { + (0, 0, vec![Ty::new_mut_ptr(tcx, tcx.types.u8)], Ty::new_imm_ptr(tcx, tcx.types.u8)) + } sym::ptr_offset_from => ( 1, diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs index 607028f4d9a..14ec82ede1c 100644 --- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs +++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs @@ -2212,12 +2212,16 @@ impl<'tcx> WfCheckingCtxt<'_, 'tcx> { let implied_obligations = traits::elaborate(tcx, predicates_with_span); for (pred, obligation_span) in implied_obligations { - // We lower empty bounds like `Vec<dyn Copy>:` as - // `WellFormed(Vec<dyn Copy>)`, which will later get checked by - // regular WF checking - if let ty::ClauseKind::WellFormed(..) = pred.kind().skip_binder() { - continue; + match pred.kind().skip_binder() { + // We lower empty bounds like `Vec<dyn Copy>:` as + // `WellFormed(Vec<dyn Copy>)`, which will later get checked by + // regular WF checking + ty::ClauseKind::WellFormed(..) + // Unstable feature goals cannot be proven in an empty environment so skip them + | ty::ClauseKind::UnstableFeature(..) => continue, + _ => {} } + // Match the existing behavior. if pred.is_global() && !pred.has_type_flags(TypeFlags::HAS_BINDER_VARS) { let pred = self.normalize(span, None, pred); diff --git a/compiler/rustc_hir_analysis/src/coherence/builtin.rs b/compiler/rustc_hir_analysis/src/coherence/builtin.rs index 8356a0af63c..27948f50a4a 100644 --- a/compiler/rustc_hir_analysis/src/coherence/builtin.rs +++ b/compiler/rustc_hir_analysis/src/coherence/builtin.rs @@ -37,6 +37,7 @@ pub(super) fn check_trait<'tcx>( let lang_items = tcx.lang_items(); let checker = Checker { tcx, trait_def_id, impl_def_id, impl_header }; checker.check(lang_items.drop_trait(), visit_implementation_of_drop)?; + checker.check(lang_items.async_drop_trait(), visit_implementation_of_drop)?; checker.check(lang_items.copy_trait(), visit_implementation_of_copy)?; checker.check(lang_items.const_param_ty_trait(), |checker| { visit_implementation_of_const_param_ty(checker, LangItem::ConstParamTy) @@ -83,7 +84,10 @@ fn visit_implementation_of_drop(checker: &Checker<'_>) -> Result<(), ErrorGuaran let impl_ = tcx.hir_expect_item(impl_did).expect_impl(); - Err(tcx.dcx().emit_err(errors::DropImplOnWrongItem { span: impl_.self_ty.span })) + Err(tcx.dcx().emit_err(errors::DropImplOnWrongItem { + span: impl_.self_ty.span, + trait_: tcx.item_name(checker.impl_header.trait_ref.skip_binder().def_id), + })) } fn visit_implementation_of_copy(checker: &Checker<'_>) -> Result<(), ErrorGuaranteed> { diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs index 28a8758178f..0728b24eb14 100644 --- a/compiler/rustc_hir_analysis/src/collect.rs +++ b/compiler/rustc_hir_analysis/src/collect.rs @@ -844,15 +844,20 @@ fn adt_def(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::AdtDef<'_> { fn trait_def(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::TraitDef { let item = tcx.hir_expect_item(def_id); - let (is_alias, is_auto, safety) = match item.kind { - hir::ItemKind::Trait(is_auto, safety, ..) => (false, is_auto == hir::IsAuto::Yes, safety), - hir::ItemKind::TraitAlias(..) => (true, false, hir::Safety::Safe), + let (constness, is_alias, is_auto, safety) = match item.kind { + hir::ItemKind::Trait(constness, is_auto, safety, ..) => { + (constness, false, is_auto == hir::IsAuto::Yes, safety) + } + hir::ItemKind::TraitAlias(..) => (hir::Constness::NotConst, true, false, hir::Safety::Safe), _ => span_bug!(item.span, "trait_def_of_item invoked on non-trait"), }; let attrs = tcx.get_all_attrs(def_id); // Only regular traits can be const. - let constness = if !is_alias && find_attr!(attrs, AttributeKind::ConstTrait(_)) { + // FIXME(const_trait_impl): remove this + let constness = if constness == hir::Constness::Const + || !is_alias && find_attr!(attrs, AttributeKind::ConstTrait(_)) + { hir::Constness::Const } else { hir::Constness::NotConst diff --git a/compiler/rustc_hir_analysis/src/collect/item_bounds.rs b/compiler/rustc_hir_analysis/src/collect/item_bounds.rs index e51ef46afb7..548ba343aae 100644 --- a/compiler/rustc_hir_analysis/src/collect/item_bounds.rs +++ b/compiler/rustc_hir_analysis/src/collect/item_bounds.rs @@ -38,12 +38,13 @@ fn associated_type_bounds<'tcx>( let icx = ItemCtxt::new(tcx, assoc_item_def_id); let mut bounds = Vec::new(); icx.lowerer().lower_bounds(item_ty, hir_bounds, &mut bounds, ty::List::empty(), filter); - // Implicit bounds are added to associated types unless a `?Trait` bound is found + match filter { PredicateFilter::All | PredicateFilter::SelfOnly | PredicateFilter::SelfTraitThatDefines(_) | PredicateFilter::SelfAndAssociatedTypeBounds => { + // Implicit bounds are added to associated types unless a `?Trait` bound is found. icx.lowerer().add_sizedness_bounds( &mut bounds, item_ty, @@ -53,37 +54,48 @@ fn associated_type_bounds<'tcx>( span, ); icx.lowerer().add_default_traits(&mut bounds, item_ty, hir_bounds, None, span); + + // Also collect `where Self::Assoc: Trait` from the parent trait's where clauses. + let trait_def_id = tcx.local_parent(assoc_item_def_id); + let trait_predicates = tcx.trait_explicit_predicates_and_bounds(trait_def_id); + + let item_trait_ref = + ty::TraitRef::identity(tcx, tcx.parent(assoc_item_def_id.to_def_id())); + bounds.extend(trait_predicates.predicates.iter().copied().filter_map( + |(clause, span)| { + remap_gat_vars_and_recurse_into_nested_projections( + tcx, + filter, + item_trait_ref, + assoc_item_def_id, + span, + clause, + ) + }, + )); } // `ConstIfConst` is only interested in `[const]` bounds. - PredicateFilter::ConstIfConst | PredicateFilter::SelfConstIfConst => {} + PredicateFilter::ConstIfConst | PredicateFilter::SelfConstIfConst => { + // FIXME(const_trait_impl): We *could* uplift the + // `where Self::Assoc: [const] Trait` bounds from the parent trait + // here too, but we'd need to split `const_conditions` into two + // queries (like we do for `trait_explicit_predicates_and_bounds`) + // since we need to also filter the predicates *out* of the const + // conditions or they lead to cycles in the trait solver when + // utilizing these bounds. For now, let's do nothing. + } } - let trait_def_id = tcx.local_parent(assoc_item_def_id); - let trait_predicates = tcx.trait_explicit_predicates_and_bounds(trait_def_id); - - let item_trait_ref = ty::TraitRef::identity(tcx, tcx.parent(assoc_item_def_id.to_def_id())); - let bounds_from_parent = - trait_predicates.predicates.iter().copied().filter_map(|(clause, span)| { - remap_gat_vars_and_recurse_into_nested_projections( - tcx, - filter, - item_trait_ref, - assoc_item_def_id, - span, - clause, - ) - }); - - let all_bounds = tcx.arena.alloc_from_iter(bounds.into_iter().chain(bounds_from_parent)); + let bounds = tcx.arena.alloc_from_iter(bounds); debug!( "associated_type_bounds({}) = {:?}", tcx.def_path_str(assoc_item_def_id.to_def_id()), - all_bounds + bounds ); - assert_only_contains_predicates_from(filter, all_bounds, item_ty); + assert_only_contains_predicates_from(filter, bounds, item_ty); - all_bounds + bounds }) } @@ -112,6 +124,7 @@ fn remap_gat_vars_and_recurse_into_nested_projections<'tcx>( ty::ClauseKind::Trait(tr) => tr.self_ty(), ty::ClauseKind::Projection(proj) => proj.projection_term.self_ty(), ty::ClauseKind::TypeOutlives(outlives) => outlives.0, + ty::ClauseKind::HostEffect(host) => host.self_ty(), _ => return None, }; diff --git a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs index a93e58b101f..f2f1560d8b2 100644 --- a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs @@ -1,6 +1,7 @@ use std::assert_matches::assert_matches; use hir::Node; +use rustc_attr_data_structures::{AttributeKind, find_attr}; use rustc_data_structures::fx::FxIndexSet; use rustc_hir as hir; use rustc_hir::def::DefKind; @@ -162,7 +163,7 @@ fn gather_explicit_predicates_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Gen .map(|t| ty::Binder::dummy(t.instantiate_identity())); } } - ItemKind::Trait(_, _, _, _, self_bounds, ..) + ItemKind::Trait(_, _, _, _, _, self_bounds, ..) | ItemKind::TraitAlias(_, _, self_bounds) => { is_trait = Some((self_bounds, item.span)); } @@ -333,6 +334,19 @@ fn gather_explicit_predicates_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Gen predicates.extend(const_evaluatable_predicates_of(tcx, def_id, &predicates)); } + let attrs = tcx.hir_attrs(tcx.local_def_id_to_hir_id(def_id)); + // FIXME(staged_api): We might want to look at the normal stability attributes too but + // first we would need a way to let std/core use APIs with unstable feature bounds from + // within stable APIs. + let allow_unstable_feature_attr = + find_attr!(attrs, AttributeKind::UnstableFeatureBound(i) => i) + .map(|i| i.as_slice()) + .unwrap_or_default(); + + for (feat_name, span) in allow_unstable_feature_attr { + predicates.insert((ty::ClauseKind::UnstableFeature(*feat_name).upcast(tcx), *span)); + } + let mut predicates: Vec<_> = predicates.into_iter().collect(); // Subtle: before we store the predicates into the tcx, we @@ -764,6 +778,7 @@ pub(super) fn assert_only_contains_predicates_from<'tcx>( ty::ClauseKind::RegionOutlives(_) | ty::ClauseKind::ConstArgHasType(_, _) | ty::ClauseKind::WellFormed(_) + | ty::ClauseKind::UnstableFeature(_) | ty::ClauseKind::ConstEvaluatable(_) => { bug!( "unexpected non-`Self` predicate when computing \ @@ -791,6 +806,7 @@ pub(super) fn assert_only_contains_predicates_from<'tcx>( | ty::ClauseKind::ConstArgHasType(_, _) | ty::ClauseKind::WellFormed(_) | ty::ClauseKind::ConstEvaluatable(_) + | ty::ClauseKind::UnstableFeature(_) | ty::ClauseKind::HostEffect(..) => { bug!( "unexpected non-`Self` predicate when computing \ @@ -1006,7 +1022,7 @@ pub(super) fn const_conditions<'tcx>( Node::Item(item) => match item.kind { hir::ItemKind::Impl(impl_) => (impl_.generics, None, false), hir::ItemKind::Fn { generics, .. } => (generics, None, false), - hir::ItemKind::Trait(_, _, _, generics, supertraits, _) => { + hir::ItemKind::Trait(_, _, _, _, generics, supertraits, _) => { (generics, Some((item.owner_id.def_id, supertraits)), false) } _ => bug!("const_conditions called on wrong item: {def_id:?}"), 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 8d7ac7db67b..77e63e38c8c 100644 --- a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs +++ b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs @@ -634,7 +634,7 @@ impl<'a, 'tcx> Visitor<'tcx> for BoundVarContext<'a, 'tcx> { | hir::ItemKind::Enum(_, generics, _) | hir::ItemKind::Struct(_, generics, _) | hir::ItemKind::Union(_, generics, _) - | hir::ItemKind::Trait(_, _, _, generics, ..) + | hir::ItemKind::Trait(_, _, _, _, generics, ..) | hir::ItemKind::TraitAlias(_, generics, ..) | hir::ItemKind::Impl(&hir::Impl { generics, .. }) => { // These kinds of items have only early-bound lifetime parameters. diff --git a/compiler/rustc_hir_analysis/src/errors.rs b/compiler/rustc_hir_analysis/src/errors.rs index c1c82839212..fbd21f8b100 100644 --- a/compiler/rustc_hir_analysis/src/errors.rs +++ b/compiler/rustc_hir_analysis/src/errors.rs @@ -205,6 +205,7 @@ pub(crate) struct DropImplOnWrongItem { #[primary_span] #[label] pub span: Span, + pub trait_: Symbol, } #[derive(Diagnostic)] @@ -525,6 +526,7 @@ pub(crate) struct ConstImplForNonConstTrait { pub trait_name: String, #[suggestion( applicability = "machine-applicable", + // FIXME(const_trait_impl) fix this suggestion code = "#[const_trait] ", style = "verbose" )] @@ -548,6 +550,7 @@ pub(crate) struct ConstBoundForNonConstTrait { pub suggestion_pre: &'static str, #[suggestion( applicability = "machine-applicable", + // FIXME(const_trait_impl) fix this suggestion code = "#[const_trait] ", style = "verbose" )] diff --git a/compiler/rustc_hir_analysis/src/errors/wrong_number_of_generic_args.rs b/compiler/rustc_hir_analysis/src/errors/wrong_number_of_generic_args.rs index 3f928fd056e..2d60c9561a9 100644 --- a/compiler/rustc_hir_analysis/src/errors/wrong_number_of_generic_args.rs +++ b/compiler/rustc_hir_analysis/src/errors/wrong_number_of_generic_args.rs @@ -635,7 +635,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> { self.suggest_adding_type_and_const_args(err); } ExcessTypesOrConsts { .. } => { - // this can happen with `[const] T` where T isn't a const_trait. + // this can happen with `[const] T` where T isn't a `const trait`. } _ => unreachable!(), } diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs index 4784cfb5235..9a752aeccdd 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs @@ -334,7 +334,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { }; let (trait_generics, trait_bounds) = match parent_trait.kind { - hir::ItemKind::Trait(_, _, _, generics, supertraits, _) => (generics, supertraits), + hir::ItemKind::Trait(_, _, _, _, generics, supertraits, _) => (generics, supertraits), hir::ItemKind::TraitAlias(_, generics, supertraits) => (generics, supertraits), _ => unreachable!(), }; diff --git a/compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs b/compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs index 574d19a5aa5..0043f0c7117 100644 --- a/compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs +++ b/compiler/rustc_hir_analysis/src/impl_wf_check/min_specialization.rs @@ -499,6 +499,7 @@ fn trait_specialization_kind<'tcx>( | ty::ClauseKind::ConstArgHasType(..) | ty::ClauseKind::WellFormed(_) | ty::ClauseKind::ConstEvaluatable(..) + | ty::ClauseKind::UnstableFeature(_) | ty::ClauseKind::HostEffect(..) => None, } } diff --git a/compiler/rustc_hir_analysis/src/outlives/explicit.rs b/compiler/rustc_hir_analysis/src/outlives/explicit.rs index 2c1d443f951..d3a57a4d8e5 100644 --- a/compiler/rustc_hir_analysis/src/outlives/explicit.rs +++ b/compiler/rustc_hir_analysis/src/outlives/explicit.rs @@ -54,6 +54,7 @@ impl<'tcx> ExplicitPredicatesMap<'tcx> { | ty::ClauseKind::ConstArgHasType(_, _) | ty::ClauseKind::WellFormed(_) | ty::ClauseKind::ConstEvaluatable(_) + | ty::ClauseKind::UnstableFeature(_) | ty::ClauseKind::HostEffect(..) => {} } } diff --git a/compiler/rustc_hir_analysis/src/outlives/utils.rs b/compiler/rustc_hir_analysis/src/outlives/utils.rs index 301f5de9424..99a633e2b7d 100644 --- a/compiler/rustc_hir_analysis/src/outlives/utils.rs +++ b/compiler/rustc_hir_analysis/src/outlives/utils.rs @@ -7,8 +7,7 @@ use smallvec::smallvec; /// Tracks the `T: 'a` or `'a: 'a` predicates that we have inferred /// must be added to the struct header. -pub(crate) type RequiredPredicates<'tcx> = - FxIndexMap<ty::OutlivesPredicate<'tcx, ty::GenericArg<'tcx>>, Span>; +pub(crate) type RequiredPredicates<'tcx> = FxIndexMap<ty::ArgOutlivesPredicate<'tcx>, Span>; /// Given a requirement `T: 'a` or `'b: 'a`, deduce the /// outlives_component and add it to `required_predicates` diff --git a/compiler/rustc_hir_pretty/src/lib.rs b/compiler/rustc_hir_pretty/src/lib.rs index 2c13c9ef438..bda02042aa6 100644 --- a/compiler/rustc_hir_pretty/src/lib.rs +++ b/compiler/rustc_hir_pretty/src/lib.rs @@ -735,8 +735,17 @@ impl<'a> State<'a> { } self.bclose(item.span, cb); } - hir::ItemKind::Trait(is_auto, safety, ident, generics, bounds, trait_items) => { + hir::ItemKind::Trait( + constness, + is_auto, + safety, + ident, + generics, + bounds, + trait_items, + ) => { let (cb, ib) = self.head(""); + self.print_constness(constness); self.print_is_auto(is_auto); self.print_safety(safety); self.word_nbsp("trait"); diff --git a/compiler/rustc_hir_typeck/src/closure.rs b/compiler/rustc_hir_typeck/src/closure.rs index 459c0498d50..a413f805873 100644 --- a/compiler/rustc_hir_typeck/src/closure.rs +++ b/compiler/rustc_hir_typeck/src/closure.rs @@ -161,16 +161,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // Resume type defaults to `()` if the coroutine has no argument. let resume_ty = liberated_sig.inputs().get(0).copied().unwrap_or(tcx.types.unit); - // In the new solver, we can just instantiate this eagerly - // with the witness. This will ensure that goals that don't need - // to stall on interior types will get processed eagerly. - let interior = if self.next_trait_solver() { - Ty::new_coroutine_witness(tcx, expr_def_id.to_def_id(), parent_args) - } else { - self.next_ty_var(expr_span) - }; - - self.deferred_coroutine_interiors.borrow_mut().push((expr_def_id, interior)); + let interior = Ty::new_coroutine_witness(tcx, expr_def_id.to_def_id(), parent_args); // Coroutines that come from coroutine closures have not yet determined // their kind ty, so make a fresh infer var which will be constrained diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs index af1fc045ac8..0b3d50ff219 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs @@ -625,50 +625,23 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // trigger query cycle ICEs, as doing so requires MIR. self.select_obligations_where_possible(|_| {}); - let coroutines = std::mem::take(&mut *self.deferred_coroutine_interiors.borrow_mut()); - debug!(?coroutines); - - let mut obligations = vec![]; - - if !self.next_trait_solver() { - for &(coroutine_def_id, interior) in coroutines.iter() { - debug!(?coroutine_def_id); - - // Create the `CoroutineWitness` type that we will unify with `interior`. - let args = ty::GenericArgs::identity_for_item( - self.tcx, - self.tcx.typeck_root_def_id(coroutine_def_id.to_def_id()), - ); - let witness = - Ty::new_coroutine_witness(self.tcx, coroutine_def_id.to_def_id(), args); - - // Unify `interior` with `witness` and collect all the resulting obligations. - let span = self.tcx.hir_body_owned_by(coroutine_def_id).value.span; - let ty::Infer(ty::InferTy::TyVar(_)) = interior.kind() else { - span_bug!(span, "coroutine interior witness not infer: {:?}", interior.kind()) - }; - let ok = self - .at(&self.misc(span), self.param_env) - // Will never define opaque types, as all we do is instantiate a type variable. - .eq(DefineOpaqueTypes::Yes, interior, witness) - .expect("Failed to unify coroutine interior type"); - - obligations.extend(ok.obligations); - } - } + let ty::TypingMode::Analysis { defining_opaque_types_and_generators } = self.typing_mode() + else { + bug!(); + }; - if !coroutines.is_empty() { - obligations.extend( + if defining_opaque_types_and_generators + .iter() + .any(|def_id| self.tcx.is_coroutine(def_id.to_def_id())) + { + self.typeck_results.borrow_mut().coroutine_stalled_predicates.extend( self.fulfillment_cx .borrow_mut() - .drain_stalled_obligations_for_coroutines(&self.infcx), + .drain_stalled_obligations_for_coroutines(&self.infcx) + .into_iter() + .map(|o| (o.predicate, o.cause)), ); } - - self.typeck_results - .borrow_mut() - .coroutine_stalled_predicates - .extend(obligations.into_iter().map(|o| (o.predicate, o.cause))); } #[instrument(skip(self), level = "debug")] diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/inspect_obligations.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/inspect_obligations.rs index e4c62bf027b..367e2b6b372 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/inspect_obligations.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/inspect_obligations.rs @@ -54,6 +54,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..)) | ty::PredicateKind::ConstEquate(..) | ty::PredicateKind::Clause(ty::ClauseKind::HostEffect(..)) + | ty::PredicateKind::Clause(ty::ClauseKind::UnstableFeature(_)) | ty::PredicateKind::Ambiguous => false, } } diff --git a/compiler/rustc_hir_typeck/src/method/prelude_edition_lints.rs b/compiler/rustc_hir_typeck/src/method/prelude_edition_lints.rs index 0037d5ac042..38413cca633 100644 --- a/compiler/rustc_hir_typeck/src/method/prelude_edition_lints.rs +++ b/compiler/rustc_hir_typeck/src/method/prelude_edition_lints.rs @@ -2,6 +2,7 @@ use std::fmt::Write; use hir::def_id::DefId; use hir::{HirId, ItemKind}; +use rustc_ast::join_path_idents; use rustc_errors::Applicability; use rustc_hir as hir; use rustc_lint::{ARRAY_INTO_ITER, BOXED_SLICE_INTO_ITER}; @@ -383,13 +384,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // All that is left is `_`! We need to use the full path. It doesn't matter which one we // pick, so just take the first one. match import_items[0].kind { - ItemKind::Use(path, _) => Some( - path.segments - .iter() - .map(|segment| segment.ident.to_string()) - .collect::<Vec<_>>() - .join("::"), - ), + ItemKind::Use(path, _) => { + Some(join_path_idents(path.segments.iter().map(|seg| seg.ident))) + } _ => { span_bug!(span, "unexpected item kind, expected a use: {:?}", import_items[0].kind); } diff --git a/compiler/rustc_hir_typeck/src/method/probe.rs b/compiler/rustc_hir_typeck/src/method/probe.rs index 94c93e73627..3261327a9fd 100644 --- a/compiler/rustc_hir_typeck/src/method/probe.rs +++ b/compiler/rustc_hir_typeck/src/method/probe.rs @@ -921,6 +921,7 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> { | ty::ClauseKind::ConstArgHasType(_, _) | ty::ClauseKind::WellFormed(_) | ty::ClauseKind::ConstEvaluatable(_) + | ty::ClauseKind::UnstableFeature(_) | ty::ClauseKind::HostEffect(..) => None, } }); diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs index 2815621ffde..dbfa7e6273c 100644 --- a/compiler/rustc_hir_typeck/src/method/suggest.rs +++ b/compiler/rustc_hir_typeck/src/method/suggest.rs @@ -1189,7 +1189,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { entry.1.insert((self_ty.span, "")); } Some(Node::Item(hir::Item { - kind: hir::ItemKind::Trait(rustc_ast::ast::IsAuto::Yes, ..), + kind: hir::ItemKind::Trait(_, rustc_ast::ast::IsAuto::Yes, ..), span: item_span, .. })) => { @@ -1201,7 +1201,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { Some( Node::Item(hir::Item { kind: - hir::ItemKind::Trait(_, _, ident, ..) + hir::ItemKind::Trait(_, _, _, ident, ..) | hir::ItemKind::TraitAlias(ident, ..), .. }) @@ -4084,7 +4084,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return; } Node::Item(hir::Item { - kind: hir::ItemKind::Trait(_, _, ident, _, bounds, _), + kind: hir::ItemKind::Trait(_, _, _, ident, _, bounds, _), .. }) => { let (sp, sep, article) = if bounds.is_empty() { diff --git a/compiler/rustc_hir_typeck/src/typeck_root_ctxt.rs b/compiler/rustc_hir_typeck/src/typeck_root_ctxt.rs index 26be5fc6d19..9f4ab8ca5d4 100644 --- a/compiler/rustc_hir_typeck/src/typeck_root_ctxt.rs +++ b/compiler/rustc_hir_typeck/src/typeck_root_ctxt.rs @@ -63,8 +63,6 @@ pub(crate) struct TypeckRootCtxt<'tcx> { pub(super) deferred_asm_checks: RefCell<Vec<(&'tcx hir::InlineAsm<'tcx>, HirId)>>, - pub(super) deferred_coroutine_interiors: RefCell<Vec<(LocalDefId, Ty<'tcx>)>>, - pub(super) deferred_repeat_expr_checks: RefCell<Vec<(&'tcx hir::Expr<'tcx>, Ty<'tcx>, ty::Const<'tcx>)>>, @@ -103,7 +101,6 @@ impl<'tcx> TypeckRootCtxt<'tcx> { deferred_cast_checks: RefCell::new(Vec::new()), deferred_transmute_checks: RefCell::new(Vec::new()), deferred_asm_checks: RefCell::new(Vec::new()), - deferred_coroutine_interiors: RefCell::new(Vec::new()), deferred_repeat_expr_checks: RefCell::new(Vec::new()), diverging_type_vars: RefCell::new(Default::default()), infer_var_info: RefCell::new(Default::default()), diff --git a/compiler/rustc_infer/src/infer/canonical/query_response.rs b/compiler/rustc_infer/src/infer/canonical/query_response.rs index d5d49e3188a..6be53c948c8 100644 --- a/compiler/rustc_infer/src/infer/canonical/query_response.rs +++ b/compiler/rustc_infer/src/infer/canonical/query_response.rs @@ -116,9 +116,15 @@ impl<'tcx> InferCtxt<'tcx> { } let region_obligations = self.take_registered_region_obligations(); + let region_assumptions = self.take_registered_region_assumptions(); debug!(?region_obligations); let region_constraints = self.with_region_constraints(|region_constraints| { - make_query_region_constraints(tcx, region_obligations, region_constraints) + make_query_region_constraints( + tcx, + region_obligations, + region_constraints, + region_assumptions, + ) }); debug!(?region_constraints); @@ -169,6 +175,11 @@ impl<'tcx> InferCtxt<'tcx> { self.register_outlives_constraint(predicate, cause); } + for assumption in &query_response.value.region_constraints.assumptions { + let assumption = instantiate_value(self.tcx, &result_args, *assumption); + self.register_region_assumption(assumption); + } + let user_result: R = query_response.instantiate_projected(self.tcx, &result_args, |q_r| q_r.value.clone()); @@ -292,6 +303,18 @@ impl<'tcx> InferCtxt<'tcx> { }), ); + // FIXME(higher_ranked_auto): Optimize this to instantiate all assumptions + // at once, rather than calling `instantiate_value` repeatedly which may + // create more universes. + output_query_region_constraints.assumptions.extend( + query_response + .value + .region_constraints + .assumptions + .iter() + .map(|&r_c| instantiate_value(self.tcx, &result_args, r_c)), + ); + let user_result: R = query_response.instantiate_projected(self.tcx, &result_args, |q_r| q_r.value.clone()); @@ -567,6 +590,7 @@ pub fn make_query_region_constraints<'tcx>( tcx: TyCtxt<'tcx>, outlives_obligations: Vec<TypeOutlivesConstraint<'tcx>>, region_constraints: &RegionConstraintData<'tcx>, + assumptions: Vec<ty::ArgOutlivesPredicate<'tcx>>, ) -> QueryRegionConstraints<'tcx> { let RegionConstraintData { constraints, verifys } = region_constraints; @@ -602,5 +626,5 @@ pub fn make_query_region_constraints<'tcx>( })) .collect(); - QueryRegionConstraints { outlives } + QueryRegionConstraints { outlives, assumptions } } diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs index cc3ad921489..2d269e320b6 100644 --- a/compiler/rustc_infer/src/infer/mod.rs +++ b/compiler/rustc_infer/src/infer/mod.rs @@ -149,6 +149,13 @@ pub struct InferCtxtInner<'tcx> { /// that all type inference variables have been bound and so forth. region_obligations: Vec<TypeOutlivesConstraint<'tcx>>, + /// The outlives bounds that we assume must hold about placeholders that + /// come from instantiating the binder of coroutine-witnesses. These bounds + /// are deduced from the well-formedness of the witness's types, and are + /// necessary because of the way we anonymize the regions in a coroutine, + /// which may cause types to no longer be considered well-formed. + region_assumptions: Vec<ty::ArgOutlivesPredicate<'tcx>>, + /// Caches for opaque type inference. opaque_type_storage: OpaqueTypeStorage<'tcx>, } @@ -164,7 +171,8 @@ impl<'tcx> InferCtxtInner<'tcx> { int_unification_storage: Default::default(), float_unification_storage: Default::default(), region_constraint_storage: Some(Default::default()), - region_obligations: vec![], + region_obligations: Default::default(), + region_assumptions: Default::default(), opaque_type_storage: Default::default(), } } @@ -175,6 +183,11 @@ impl<'tcx> InferCtxtInner<'tcx> { } #[inline] + pub fn region_assumptions(&self) -> &[ty::ArgOutlivesPredicate<'tcx>] { + &self.region_assumptions + } + + #[inline] pub fn projection_cache(&mut self) -> traits::ProjectionCache<'_, 'tcx> { self.projection_cache.with_log(&mut self.undo_log) } diff --git a/compiler/rustc_infer/src/infer/outlives/env.rs b/compiler/rustc_infer/src/infer/outlives/env.rs index cb5a33c5c97..47b738a4079 100644 --- a/compiler/rustc_infer/src/infer/outlives/env.rs +++ b/compiler/rustc_infer/src/infer/outlives/env.rs @@ -1,4 +1,4 @@ -use rustc_data_structures::fx::FxIndexSet; +use rustc_data_structures::fx::{FxHashSet, FxIndexSet}; use rustc_data_structures::transitive_relation::TransitiveRelationBuilder; use rustc_middle::{bug, ty}; use tracing::debug; @@ -39,6 +39,9 @@ pub struct OutlivesEnvironment<'tcx> { /// optimized in the future, though. region_bound_pairs: RegionBoundPairs<'tcx>, known_type_outlives: Vec<ty::PolyTypeOutlivesPredicate<'tcx>>, + /// Assumptions that come from the well-formedness of coroutines that we prove + /// auto trait bounds for during the type checking of this body. + higher_ranked_assumptions: FxHashSet<ty::ArgOutlivesPredicate<'tcx>>, } /// "Region-bound pairs" tracks outlives relations that are known to @@ -52,6 +55,7 @@ impl<'tcx> OutlivesEnvironment<'tcx> { param_env: ty::ParamEnv<'tcx>, known_type_outlives: Vec<ty::PolyTypeOutlivesPredicate<'tcx>>, extra_bounds: impl IntoIterator<Item = OutlivesBound<'tcx>>, + higher_ranked_assumptions: FxHashSet<ty::ArgOutlivesPredicate<'tcx>>, ) -> Self { let mut region_relation = TransitiveRelationBuilder::default(); let mut region_bound_pairs = RegionBoundPairs::default(); @@ -88,6 +92,7 @@ impl<'tcx> OutlivesEnvironment<'tcx> { known_type_outlives, free_region_map: FreeRegionMap { relation: region_relation.freeze() }, region_bound_pairs, + higher_ranked_assumptions, } } @@ -102,4 +107,8 @@ impl<'tcx> OutlivesEnvironment<'tcx> { pub fn known_type_outlives(&self) -> &[ty::PolyTypeOutlivesPredicate<'tcx>] { &self.known_type_outlives } + + pub fn higher_ranked_assumptions(&self) -> &FxHashSet<ty::ArgOutlivesPredicate<'tcx>> { + &self.higher_ranked_assumptions + } } diff --git a/compiler/rustc_infer/src/infer/outlives/mod.rs b/compiler/rustc_infer/src/infer/outlives/mod.rs index 2a4544c1140..19911bfbd48 100644 --- a/compiler/rustc_infer/src/infer/outlives/mod.rs +++ b/compiler/rustc_infer/src/infer/outlives/mod.rs @@ -10,6 +10,7 @@ use super::region_constraints::{RegionConstraintData, UndoLog}; use super::{InferCtxt, RegionResolutionError, SubregionOrigin}; use crate::infer::free_regions::RegionRelations; use crate::infer::lexical_region_resolve; +use crate::infer::region_constraints::Constraint; pub mod env; pub mod for_liveness; @@ -54,18 +55,29 @@ impl<'tcx> InferCtxt<'tcx> { } }; - let storage = { + let mut storage = { let mut inner = self.inner.borrow_mut(); let inner = &mut *inner; assert!( self.tainted_by_errors().is_some() || inner.region_obligations.is_empty(), "region_obligations not empty: {:#?}", - inner.region_obligations + inner.region_obligations, ); assert!(!UndoLogs::<UndoLog<'_>>::in_snapshot(&inner.undo_log)); inner.region_constraint_storage.take().expect("regions already resolved") }; + // Filter out any region-region outlives assumptions that are implied by + // coroutine well-formedness. + if self.tcx.sess.opts.unstable_opts.higher_ranked_assumptions { + storage.data.constraints.retain(|(constraint, _)| match *constraint { + Constraint::RegSubReg(r1, r2) => !outlives_env + .higher_ranked_assumptions() + .contains(&ty::OutlivesPredicate(r2.into(), r1)), + _ => true, + }); + } + let region_rels = &RegionRelations::new(self.tcx, outlives_env.free_region_map()); let (lexical_region_resolutions, errors) = @@ -93,6 +105,11 @@ impl<'tcx> InferCtxt<'tcx> { "region_obligations not empty: {:#?}", self.inner.borrow().region_obligations ); + assert!( + self.inner.borrow().region_assumptions.is_empty(), + "region_assumptions not empty: {:#?}", + self.inner.borrow().region_assumptions + ); self.inner.borrow_mut().unwrap_region_constraints().take_and_reset_data() } diff --git a/compiler/rustc_infer/src/infer/outlives/obligations.rs b/compiler/rustc_infer/src/infer/outlives/obligations.rs index 43504bd77c1..a8520c0e71d 100644 --- a/compiler/rustc_infer/src/infer/outlives/obligations.rs +++ b/compiler/rustc_infer/src/infer/outlives/obligations.rs @@ -84,7 +84,7 @@ use crate::traits::{ObligationCause, ObligationCauseCode}; impl<'tcx> InferCtxt<'tcx> { pub fn register_outlives_constraint( &self, - ty::OutlivesPredicate(arg, r2): ty::OutlivesPredicate<'tcx, ty::GenericArg<'tcx>>, + ty::OutlivesPredicate(arg, r2): ty::ArgOutlivesPredicate<'tcx>, cause: &ObligationCause<'tcx>, ) { match arg.kind() { @@ -170,6 +170,16 @@ impl<'tcx> InferCtxt<'tcx> { std::mem::take(&mut self.inner.borrow_mut().region_obligations) } + pub fn register_region_assumption(&self, assumption: ty::ArgOutlivesPredicate<'tcx>) { + let mut inner = self.inner.borrow_mut(); + inner.undo_log.push(UndoLog::PushRegionAssumption); + inner.region_assumptions.push(assumption); + } + + pub fn take_registered_region_assumptions(&self) -> Vec<ty::ArgOutlivesPredicate<'tcx>> { + std::mem::take(&mut self.inner.borrow_mut().region_assumptions) + } + /// Process the region obligations that must be proven (during /// `regionck`) for the given `body_id`, given information about /// the region bounds in scope and so forth. @@ -220,6 +230,14 @@ impl<'tcx> InferCtxt<'tcx> { let (sup_type, sub_region) = (sup_type, sub_region).fold_with(&mut OpportunisticRegionResolver::new(self)); + if self.tcx.sess.opts.unstable_opts.higher_ranked_assumptions + && outlives_env + .higher_ranked_assumptions() + .contains(&ty::OutlivesPredicate(sup_type.into(), sub_region)) + { + continue; + } + debug!(?sup_type, ?sub_region, ?origin); let outlives = &mut TypeOutlives::new( diff --git a/compiler/rustc_infer/src/infer/snapshot/undo_log.rs b/compiler/rustc_infer/src/infer/snapshot/undo_log.rs index 34e649afedc..40e4c329446 100644 --- a/compiler/rustc_infer/src/infer/snapshot/undo_log.rs +++ b/compiler/rustc_infer/src/infer/snapshot/undo_log.rs @@ -28,6 +28,7 @@ pub(crate) enum UndoLog<'tcx> { RegionUnificationTable(sv::UndoLog<ut::Delegate<RegionVidKey<'tcx>>>), ProjectionCache(traits::UndoLog<'tcx>), PushTypeOutlivesConstraint, + PushRegionAssumption, } macro_rules! impl_from { @@ -77,6 +78,9 @@ impl<'tcx> Rollback<UndoLog<'tcx>> for InferCtxtInner<'tcx> { let popped = self.region_obligations.pop(); assert_matches!(popped, Some(_), "pushed region constraint but could not pop it"); } + UndoLog::PushRegionAssumption => { + self.region_assumptions.pop(); + } } } } diff --git a/compiler/rustc_lint/messages.ftl b/compiler/rustc_lint/messages.ftl index 8d9f2385b71..1a1cfc9fa6f 100644 --- a/compiler/rustc_lint/messages.ftl +++ b/compiler/rustc_lint/messages.ftl @@ -440,6 +440,7 @@ lint_invalid_asm_label_named = avoid using named labels in inline assembly .help = only local labels of the form `<number>:` should be used in inline asm .note = see the asm section of Rust By Example <https://doc.rust-lang.org/nightly/rust-by-example/unsafe/asm.html#labels> for more information lint_invalid_asm_label_no_span = the label may be declared in the expansion of a macro + lint_invalid_crate_type_value = invalid `crate_type` value .suggestion = did you mean @@ -508,27 +509,50 @@ lint_metavariable_still_repeating = variable `{$name}` is still repeating at thi lint_metavariable_wrong_operator = meta-variable repeats with different Kleene operator -lint_mismatched_lifetime_syntaxes = - lifetime flowing from input to output with different syntax can be confusing - .label_mismatched_lifetime_syntaxes_inputs = - {$n_inputs -> - [one] this lifetime flows - *[other] these lifetimes flow - } to the output - .label_mismatched_lifetime_syntaxes_outputs = - the {$n_outputs -> - [one] lifetime gets - *[other] lifetimes get - } resolved as `{$lifetime_name}` +lint_mismatched_lifetime_syntaxes_eliding_while_named = + eliding a lifetime that's named elsewhere is confusing + +lint_mismatched_lifetime_syntaxes_help = + the same lifetime is referred to in inconsistent ways, making the signature confusing + +lint_mismatched_lifetime_syntaxes_hiding_and_eliding_while_named = + hiding or eliding a lifetime that's named elsewhere is confusing + +lint_mismatched_lifetime_syntaxes_hiding_while_elided = + hiding a lifetime that's elided elsewhere is confusing + +lint_mismatched_lifetime_syntaxes_hiding_while_named = + hiding a lifetime that's named elsewhere is confusing + +lint_mismatched_lifetime_syntaxes_input_elided = + the lifetime is elided here + +lint_mismatched_lifetime_syntaxes_input_hidden = + the lifetime is hidden here + +lint_mismatched_lifetime_syntaxes_input_named = + the lifetime is named here + +lint_mismatched_lifetime_syntaxes_output_elided = + the same lifetime is elided here + +lint_mismatched_lifetime_syntaxes_output_hidden = + the same lifetime is hidden here + +lint_mismatched_lifetime_syntaxes_output_named = + the same lifetime is named here lint_mismatched_lifetime_syntaxes_suggestion_explicit = - one option is to consistently use `{$lifetime_name}` + consistently use `{$lifetime_name}` lint_mismatched_lifetime_syntaxes_suggestion_implicit = - one option is to consistently remove the lifetime + remove the lifetime name from references lint_mismatched_lifetime_syntaxes_suggestion_mixed = - one option is to remove the lifetime for references and use the anonymous lifetime for paths + remove the lifetime name from references and use `'_` for type paths + +lint_mismatched_lifetime_syntaxes_suggestion_mixed_only_paths = + use `'_` for type paths lint_missing_unsafe_on_extern = extern blocks should be unsafe .suggestion = needs `unsafe` before the extern keyword @@ -744,6 +768,9 @@ lint_redundant_semicolons_suggestion = remove {$multiple_semicolons -> *[false] this semicolon } +lint_reexport_private_dependency = + {$kind} `{$name}` from private dependency '{$krate}' is re-exported + lint_remove_mut_from_pattern = remove `mut` from the parameter lint_removed_lint = lint `{$name}` has been removed: {$reason} @@ -790,6 +817,9 @@ lint_supertrait_as_deref_target = this `Deref` implementation is covered by an i .label2 = target type is a supertrait of `{$self_ty}` .help = consider removing this implementation or replacing it with a method instead +lint_surrogate_char_cast = surrogate values are not valid for `char` + .note = `0xD800..=0xDFFF` are reserved for Unicode surrogates and are not valid `char` values + lint_suspicious_double_ref_clone = using `.clone()` on a double reference, which returns `{$ty}` instead of cloning the inner type @@ -799,6 +829,9 @@ lint_suspicious_double_ref_deref = lint_symbol_intern_string_literal = using `Symbol::intern` on a string literal .help = consider adding the symbol to `compiler/rustc_span/src/symbol.rs` +lint_too_large_char_cast = value exceeds maximum `char` value + .note = maximum valid `char` value is `0x10FFFF` + lint_trailing_semi_macro = trailing semicolon in macro used in expression position .note1 = macro invocations at the end of a block are treated as expressions .note2 = to ignore the value produced by the macro, add a semicolon after the invocation of `{$name}` diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs index 255ff56f62b..73e68834232 100644 --- a/compiler/rustc_lint/src/builtin.rs +++ b/compiler/rustc_lint/src/builtin.rs @@ -1519,8 +1519,9 @@ impl<'tcx> LateLintPass<'tcx> for TrivialConstraints { ClauseKind::TypeOutlives(..) | ClauseKind::RegionOutlives(..) => "lifetime", + ClauseKind::UnstableFeature(_) // `ConstArgHasType` is never global as `ct` is always a param - ClauseKind::ConstArgHasType(..) + | ClauseKind::ConstArgHasType(..) // Ignore projections, as they can only be global // if the trait bound is global | ClauseKind::Projection(..) @@ -1584,6 +1585,8 @@ impl EarlyLintPass for DoubleNegations { if let ExprKind::Unary(UnOp::Neg, ref inner) = expr.kind && let ExprKind::Unary(UnOp::Neg, ref inner2) = inner.kind && !matches!(inner2.kind, ExprKind::Unary(UnOp::Neg, _)) + // Don't lint if this jumps macro expansion boundary (Issue #143980) + && expr.span.eq_ctxt(inner.span) { cx.emit_span_lint( DOUBLE_NEGATIONS, diff --git a/compiler/rustc_lint/src/early/diagnostics.rs b/compiler/rustc_lint/src/early/diagnostics.rs index 653559009cc..f0fbf5bc81e 100644 --- a/compiler/rustc_lint/src/early/diagnostics.rs +++ b/compiler/rustc_lint/src/early/diagnostics.rs @@ -351,6 +351,9 @@ pub fn decorate_builtin_lint( } .decorate_lint(diag); } + BuiltinLintDiag::ReexportPrivateDependency { name, kind, krate } => { + lints::ReexportPrivateDependency { name, kind, krate }.decorate_lint(diag); + } BuiltinLintDiag::UnusedQualifications { removal_span } => { lints::UnusedQualifications { removal_span }.decorate_lint(diag); } diff --git a/compiler/rustc_lint/src/lib.rs b/compiler/rustc_lint/src/lib.rs index 419124d5144..f06757b3c23 100644 --- a/compiler/rustc_lint/src/lib.rs +++ b/compiler/rustc_lint/src/lib.rs @@ -55,7 +55,7 @@ mod invalid_from_utf8; mod late; mod let_underscore; mod levels; -mod lifetime_syntax; +pub mod lifetime_syntax; mod lints; mod macro_expr_fragment_specifier_2024_migration; mod map_unit_fn; diff --git a/compiler/rustc_lint/src/lifetime_syntax.rs b/compiler/rustc_lint/src/lifetime_syntax.rs index 5465968e984..2a5a34cdc6e 100644 --- a/compiler/rustc_lint/src/lifetime_syntax.rs +++ b/compiler/rustc_lint/src/lifetime_syntax.rs @@ -140,43 +140,115 @@ fn report_mismatches<'tcx>( } } -fn lifetimes_use_matched_syntax(input_info: &[Info<'_>], output_info: &[Info<'_>]) -> bool { - // Categorize lifetimes into source/syntax buckets. - let mut n_hidden = 0; - let mut n_elided = 0; - let mut n_named = 0; +#[derive(Debug, Copy, Clone, PartialEq)] +enum LifetimeSyntaxCategory { + Hidden, + Elided, + Named, +} - for info in input_info.iter().chain(output_info) { +impl LifetimeSyntaxCategory { + fn new(syntax_source: (hir::LifetimeSyntax, LifetimeSource)) -> Option<Self> { use LifetimeSource::*; use hir::LifetimeSyntax::*; - let syntax_source = (info.lifetime.syntax, info.lifetime.source); - match syntax_source { - // Ignore any other kind of lifetime. - (_, Other) => continue, - // E.g. `&T`. - (Implicit, Reference | OutlivesBound | PreciseCapturing) | + (Implicit, Reference) | // E.g. `&'_ T`. - (ExplicitAnonymous, Reference | OutlivesBound | PreciseCapturing) | + (ExplicitAnonymous, Reference) | // E.g. `ContainsLifetime<'_>`. - (ExplicitAnonymous, Path { .. }) => n_elided += 1, + (ExplicitAnonymous, Path { .. }) | + // E.g. `+ '_`, `+ use<'_>`. + (ExplicitAnonymous, OutlivesBound | PreciseCapturing) => { + Some(Self::Elided) + } // E.g. `ContainsLifetime`. - (Implicit, Path { .. }) => n_hidden += 1, + (Implicit, Path { .. }) => { + Some(Self::Hidden) + } // E.g. `&'a T`. - (ExplicitBound, Reference | OutlivesBound | PreciseCapturing) | + (ExplicitBound, Reference) | // E.g. `ContainsLifetime<'a>`. - (ExplicitBound, Path { .. }) => n_named += 1, - }; + (ExplicitBound, Path { .. }) | + // E.g. `+ 'a`, `+ use<'a>`. + (ExplicitBound, OutlivesBound | PreciseCapturing) => { + Some(Self::Named) + } + + (Implicit, OutlivesBound | PreciseCapturing) | + (_, Other) => { + None + } + } + } +} + +#[derive(Debug, Default)] +pub struct LifetimeSyntaxCategories<T> { + pub hidden: T, + pub elided: T, + pub named: T, +} + +impl<T> LifetimeSyntaxCategories<T> { + fn select(&mut self, category: LifetimeSyntaxCategory) -> &mut T { + use LifetimeSyntaxCategory::*; + + match category { + Elided => &mut self.elided, + Hidden => &mut self.hidden, + Named => &mut self.named, + } + } +} + +impl<T> LifetimeSyntaxCategories<Vec<T>> { + pub fn len(&self) -> LifetimeSyntaxCategories<usize> { + LifetimeSyntaxCategories { + hidden: self.hidden.len(), + elided: self.elided.len(), + named: self.named.len(), + } + } + + pub fn flatten(&self) -> impl Iterator<Item = &T> { + let Self { hidden, elided, named } = self; + [hidden.iter(), elided.iter(), named.iter()].into_iter().flatten() + } +} + +impl std::ops::Add for LifetimeSyntaxCategories<usize> { + type Output = Self; + + fn add(self, rhs: Self) -> Self::Output { + Self { + hidden: self.hidden + rhs.hidden, + elided: self.elided + rhs.elided, + named: self.named + rhs.named, + } + } +} + +fn lifetimes_use_matched_syntax(input_info: &[Info<'_>], output_info: &[Info<'_>]) -> bool { + let mut syntax_counts = LifetimeSyntaxCategories::<usize>::default(); + + for info in input_info.iter().chain(output_info) { + if let Some(category) = info.lifetime_syntax_category() { + *syntax_counts.select(category) += 1; + } } - let syntax_counts = (n_hidden, n_elided, n_named); tracing::debug!(?syntax_counts); - matches!(syntax_counts, (_, 0, 0) | (0, _, 0) | (0, 0, _)) + matches!( + syntax_counts, + LifetimeSyntaxCategories { hidden: _, elided: 0, named: 0 } + | LifetimeSyntaxCategories { hidden: 0, elided: _, named: 0 } + | LifetimeSyntaxCategories { hidden: 0, elided: 0, named: _ } + ) } fn emit_mismatch_diagnostic<'tcx>( @@ -238,7 +310,7 @@ fn emit_mismatch_diagnostic<'tcx>( use LifetimeSource::*; use hir::LifetimeSyntax::*; - let syntax_source = (info.lifetime.syntax, info.lifetime.source); + let syntax_source = info.syntax_source(); if let (_, Other) = syntax_source { // Ignore any other kind of lifetime. @@ -259,7 +331,6 @@ fn emit_mismatch_diagnostic<'tcx>( // E.g. `&'_ T`. (ExplicitAnonymous, Reference) => { suggest_change_to_implicit.push(info); - suggest_change_to_mixed_implicit.push(info); suggest_change_to_explicit_bound.push(info); } @@ -319,12 +390,22 @@ fn emit_mismatch_diagnostic<'tcx>( } } + let categorize = |infos: &[Info<'_>]| { + let mut categories = LifetimeSyntaxCategories::<Vec<_>>::default(); + for info in infos { + if let Some(category) = info.lifetime_syntax_category() { + categories.select(category).push(info.reporting_span()); + } + } + categories + }; + + let inputs = categorize(input_info); + let outputs = categorize(output_info); + let make_implicit_suggestions = |infos: &[&Info<'_>]| infos.iter().map(|i| i.removing_span()).collect::<Vec<_>>(); - let inputs = input_info.iter().map(|info| info.reporting_span()).collect(); - let outputs = output_info.iter().map(|info| info.reporting_span()).collect(); - let explicit_bound_suggestion = bound_lifetime.map(|info| { build_mismatch_suggestion(info.lifetime_name(), &suggest_change_to_explicit_bound) }); @@ -399,8 +480,6 @@ fn emit_mismatch_diagnostic<'tcx>( ?explicit_anonymous_suggestion, ); - let lifetime_name = bound_lifetime.map(|info| info.lifetime_name()).unwrap_or("'_").to_owned(); - // We can produce a number of suggestions which may overwhelm // the user. Instead, we order the suggestions based on Rust // idioms. The "best" choice is shown to the user and the @@ -413,8 +492,8 @@ fn emit_mismatch_diagnostic<'tcx>( cx.emit_span_lint( MISMATCHED_LIFETIME_SYNTAXES, - Vec::clone(&inputs), - lints::MismatchedLifetimeSyntaxes { lifetime_name, inputs, outputs, suggestions }, + inputs.flatten().copied().collect::<Vec<_>>(), + lints::MismatchedLifetimeSyntaxes { inputs, outputs, suggestions }, ); } @@ -422,12 +501,12 @@ fn build_mismatch_suggestion( lifetime_name: &str, infos: &[&Info<'_>], ) -> lints::MismatchedLifetimeSyntaxesSuggestion { - let lifetime_name_sugg = lifetime_name.to_owned(); + let lifetime_name = lifetime_name.to_owned(); let suggestions = infos.iter().map(|info| info.suggestion(&lifetime_name)).collect(); lints::MismatchedLifetimeSyntaxesSuggestion::Explicit { - lifetime_name_sugg, + lifetime_name, suggestions, tool_only: false, } @@ -441,6 +520,14 @@ struct Info<'tcx> { } impl<'tcx> Info<'tcx> { + fn syntax_source(&self) -> (hir::LifetimeSyntax, LifetimeSource) { + (self.lifetime.syntax, self.lifetime.source) + } + + fn lifetime_syntax_category(&self) -> Option<LifetimeSyntaxCategory> { + LifetimeSyntaxCategory::new(self.syntax_source()) + } + fn lifetime_name(&self) -> &str { self.lifetime.ident.as_str() } diff --git a/compiler/rustc_lint/src/lints.rs b/compiler/rustc_lint/src/lints.rs index 21148833eaf..fd8d0f832aa 100644 --- a/compiler/rustc_lint/src/lints.rs +++ b/compiler/rustc_lint/src/lints.rs @@ -21,6 +21,7 @@ use rustc_span::{Ident, MacroRulesNormalizedIdent, Span, Symbol, sym}; use crate::builtin::{InitError, ShorthandAssocTyCollector, TypeAliasBounds}; use crate::errors::{OverruledAttributeSub, RequestedLevel}; +use crate::lifetime_syntax::LifetimeSyntaxCategories; use crate::{LateContext, fluent_generated as fluent}; // array_into_iter.rs @@ -1747,6 +1748,20 @@ pub(crate) struct OverflowingLiteral<'a> { } #[derive(LintDiagnostic)] +#[diag(lint_surrogate_char_cast)] +#[note] +pub(crate) struct SurrogateCharCast { + pub literal: u128, +} + +#[derive(LintDiagnostic)] +#[diag(lint_too_large_char_cast)] +#[note] +pub(crate) struct TooLargeCharCast { + pub literal: u128, +} + +#[derive(LintDiagnostic)] #[diag(lint_uses_power_alignment)] pub(crate) struct UsesPowerAlignment; @@ -3081,6 +3096,14 @@ pub(crate) struct HiddenGlobReexports { } #[derive(LintDiagnostic)] +#[diag(lint_reexport_private_dependency)] +pub(crate) struct ReexportPrivateDependency { + pub name: String, + pub kind: String, + pub krate: Symbol, +} + +#[derive(LintDiagnostic)] #[diag(lint_unnecessary_qualification)] pub(crate) struct UnusedQualifications { #[suggestion(style = "verbose", code = "", applicability = "machine-applicable")] @@ -3194,31 +3217,60 @@ pub(crate) struct ReservedMultihash { #[derive(Debug)] pub(crate) struct MismatchedLifetimeSyntaxes { - pub lifetime_name: String, - pub inputs: Vec<Span>, - pub outputs: Vec<Span>, + pub inputs: LifetimeSyntaxCategories<Vec<Span>>, + pub outputs: LifetimeSyntaxCategories<Vec<Span>>, pub suggestions: Vec<MismatchedLifetimeSyntaxesSuggestion>, } impl<'a, G: EmissionGuarantee> LintDiagnostic<'a, G> for MismatchedLifetimeSyntaxes { fn decorate_lint<'b>(self, diag: &'b mut Diag<'a, G>) { - diag.primary_message(fluent::lint_mismatched_lifetime_syntaxes); + let counts = self.inputs.len() + self.outputs.len(); + let message = match counts { + LifetimeSyntaxCategories { hidden: 0, elided: 0, named: 0 } => { + panic!("No lifetime mismatch detected") + } - diag.arg("lifetime_name", self.lifetime_name); + LifetimeSyntaxCategories { hidden: _, elided: _, named: 0 } => { + fluent::lint_mismatched_lifetime_syntaxes_hiding_while_elided + } + + LifetimeSyntaxCategories { hidden: _, elided: 0, named: _ } => { + fluent::lint_mismatched_lifetime_syntaxes_hiding_while_named + } + + LifetimeSyntaxCategories { hidden: 0, elided: _, named: _ } => { + fluent::lint_mismatched_lifetime_syntaxes_eliding_while_named + } + + LifetimeSyntaxCategories { hidden: _, elided: _, named: _ } => { + fluent::lint_mismatched_lifetime_syntaxes_hiding_and_eliding_while_named + } + }; + diag.primary_message(message); - diag.arg("n_inputs", self.inputs.len()); - for input in self.inputs { - let a = diag.eagerly_translate(fluent::lint_label_mismatched_lifetime_syntaxes_inputs); - diag.span_label(input, a); + for s in self.inputs.hidden { + diag.span_label(s, fluent::lint_mismatched_lifetime_syntaxes_input_hidden); + } + for s in self.inputs.elided { + diag.span_label(s, fluent::lint_mismatched_lifetime_syntaxes_input_elided); + } + for s in self.inputs.named { + diag.span_label(s, fluent::lint_mismatched_lifetime_syntaxes_input_named); } - diag.arg("n_outputs", self.outputs.len()); - for output in self.outputs { - let a = diag.eagerly_translate(fluent::lint_label_mismatched_lifetime_syntaxes_outputs); - diag.span_label(output, a); + for s in self.outputs.hidden { + diag.span_label(s, fluent::lint_mismatched_lifetime_syntaxes_output_hidden); + } + for s in self.outputs.elided { + diag.span_label(s, fluent::lint_mismatched_lifetime_syntaxes_output_elided); + } + for s in self.outputs.named { + diag.span_label(s, fluent::lint_mismatched_lifetime_syntaxes_output_named); } + diag.help(fluent::lint_mismatched_lifetime_syntaxes_help); + let mut suggestions = self.suggestions.into_iter(); if let Some(s) = suggestions.next() { diag.subdiagnostic(s); @@ -3245,7 +3297,7 @@ pub(crate) enum MismatchedLifetimeSyntaxesSuggestion { }, Explicit { - lifetime_name_sugg: String, + lifetime_name: String, suggestions: Vec<(Span, String)>, tool_only: bool, }, @@ -3285,6 +3337,12 @@ impl Subdiagnostic for MismatchedLifetimeSyntaxesSuggestion { } Mixed { implicit_suggestions, explicit_anonymous_suggestions, tool_only } => { + let message = if implicit_suggestions.is_empty() { + fluent::lint_mismatched_lifetime_syntaxes_suggestion_mixed_only_paths + } else { + fluent::lint_mismatched_lifetime_syntaxes_suggestion_mixed + }; + let implicit_suggestions = implicit_suggestions.into_iter().map(|s| (s, String::new())); @@ -3292,19 +3350,19 @@ impl Subdiagnostic for MismatchedLifetimeSyntaxesSuggestion { implicit_suggestions.chain(explicit_anonymous_suggestions).collect(); diag.multipart_suggestion_with_style( - fluent::lint_mismatched_lifetime_syntaxes_suggestion_mixed, + message, suggestions, Applicability::MaybeIncorrect, style(tool_only), ); } - Explicit { lifetime_name_sugg, suggestions, tool_only } => { - diag.arg("lifetime_name_sugg", lifetime_name_sugg); + Explicit { lifetime_name, suggestions, tool_only } => { + diag.arg("lifetime_name", lifetime_name); let msg = diag.eagerly_translate( fluent::lint_mismatched_lifetime_syntaxes_suggestion_explicit, ); - diag.remove_arg("lifetime_name_sugg"); + diag.remove_arg("lifetime_name"); diag.multipart_suggestion_with_style( msg, suggestions, diff --git a/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs b/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs index 3cc55eaa0f2..5513c703f1d 100644 --- a/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs +++ b/compiler/rustc_lint/src/multiple_supertrait_upcastable.rs @@ -39,7 +39,7 @@ impl<'tcx> LateLintPass<'tcx> for MultipleSupertraitUpcastable { let def_id = item.owner_id.to_def_id(); // NOTE(nbdd0121): use `dyn_compatibility_violations` instead of `is_dyn_compatible` because // the latter will report `where_clause_object_safety` lint. - if let hir::ItemKind::Trait(_, _, ident, ..) = item.kind + if let hir::ItemKind::Trait(_, _, _, ident, ..) = item.kind && cx.tcx.is_dyn_compatible(def_id) { let direct_super_traits_iter = cx diff --git a/compiler/rustc_lint/src/types/literal.rs b/compiler/rustc_lint/src/types/literal.rs index d44f45177bd..2bac58ba23d 100644 --- a/compiler/rustc_lint/src/types/literal.rs +++ b/compiler/rustc_lint/src/types/literal.rs @@ -12,7 +12,7 @@ use crate::context::LintContext; use crate::lints::{ OnlyCastu8ToChar, OverflowingBinHex, OverflowingBinHexSign, OverflowingBinHexSignBitSub, OverflowingBinHexSub, OverflowingInt, OverflowingIntHelp, OverflowingLiteral, OverflowingUInt, - RangeEndpointOutOfRange, UseInclusiveRange, + RangeEndpointOutOfRange, SurrogateCharCast, TooLargeCharCast, UseInclusiveRange, }; use crate::types::{OVERFLOWING_LITERALS, TypeLimits}; @@ -38,12 +38,18 @@ fn lint_overflowing_range_endpoint<'tcx>( // We only want to handle exclusive (`..`) ranges, // which are represented as `ExprKind::Struct`. - let Node::ExprField(field) = cx.tcx.parent_hir_node(hir_id) else { return false }; - let Node::Expr(struct_expr) = cx.tcx.parent_hir_node(field.hir_id) else { return false }; + let Node::ExprField(field) = cx.tcx.parent_hir_node(hir_id) else { + return false; + }; + let Node::Expr(struct_expr) = cx.tcx.parent_hir_node(field.hir_id) else { + return false; + }; if !is_range_literal(struct_expr) { return false; }; - let ExprKind::Struct(_, [start, end], _) = &struct_expr.kind else { return false }; + let ExprKind::Struct(_, [start, end], _) = &struct_expr.kind else { + return false; + }; // We can suggest using an inclusive range // (`..=`) instead only if it is the `end` that is @@ -61,7 +67,9 @@ fn lint_overflowing_range_endpoint<'tcx>( }; let sub_sugg = if span.lo() == lit_span.lo() { - let Ok(start) = cx.sess().source_map().span_to_snippet(start.span) else { return false }; + let Ok(start) = cx.sess().source_map().span_to_snippet(start.span) else { + return false; + }; UseInclusiveRange::WithoutParen { sugg: struct_expr.span.shrink_to_lo().to(lit_span.shrink_to_hi()), start, @@ -316,11 +324,25 @@ fn lint_uint_literal<'tcx>( match par_e.kind { hir::ExprKind::Cast(..) => { if let ty::Char = cx.typeck_results().expr_ty(par_e).kind() { - cx.emit_span_lint( - OVERFLOWING_LITERALS, - par_e.span, - OnlyCastu8ToChar { span: par_e.span, literal: lit_val }, - ); + if lit_val > 0x10FFFF { + cx.emit_span_lint( + OVERFLOWING_LITERALS, + par_e.span, + TooLargeCharCast { literal: lit_val }, + ); + } else if (0xD800..=0xDFFF).contains(&lit_val) { + cx.emit_span_lint( + OVERFLOWING_LITERALS, + par_e.span, + SurrogateCharCast { literal: lit_val }, + ); + } else { + cx.emit_span_lint( + OVERFLOWING_LITERALS, + par_e.span, + OnlyCastu8ToChar { span: par_e.span, literal: lit_val }, + ); + } return; } } diff --git a/compiler/rustc_lint_defs/src/lib.rs b/compiler/rustc_lint_defs/src/lib.rs index cd402c9234f..fe068d96b74 100644 --- a/compiler/rustc_lint_defs/src/lib.rs +++ b/compiler/rustc_lint_defs/src/lib.rs @@ -739,6 +739,11 @@ pub enum BuiltinLintDiag { /// The local binding that shadows the glob reexport. private_item_span: Span, }, + ReexportPrivateDependency { + name: String, + kind: String, + krate: Symbol, + }, UnusedQualifications { /// The span of the unnecessarily-qualified path to remove. removal_span: Span, diff --git a/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs index 19954459cb5..57a672c45f7 100644 --- a/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs +++ b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs @@ -3,7 +3,7 @@ use std::mem; use std::sync::Arc; use rustc_attr_data_structures::Deprecation; -use rustc_hir::def::{CtorKind, DefKind, Res}; +use rustc_hir::def::{CtorKind, DefKind}; use rustc_hir::def_id::{CrateNum, DefId, DefIdMap, LOCAL_CRATE}; use rustc_hir::definitions::{DefKey, DefPath, DefPathHash}; use rustc_middle::arena::ArenaAllocatable; @@ -510,10 +510,7 @@ pub(in crate::rmeta) fn provide(providers: &mut Providers) { } Entry::Vacant(entry) => { entry.insert(parent); - if matches!( - child.res, - Res::Def(DefKind::Mod | DefKind::Enum | DefKind::Trait, _) - ) { + if child.res.module_like_def_id().is_some() { bfs_queue.push_back(def_id); } } diff --git a/compiler/rustc_metadata/src/rmeta/encoder.rs b/compiler/rustc_metadata/src/rmeta/encoder.rs index b50453cb0df..5cd98038fc6 100644 --- a/compiler/rustc_metadata/src/rmeta/encoder.rs +++ b/compiler/rustc_metadata/src/rmeta/encoder.rs @@ -1131,7 +1131,7 @@ fn should_encode_mir( && reachable_set.contains(&def_id) && (generics.requires_monomorphization(tcx) || tcx.cross_crate_inlinable(def_id))); - // The function has a `const` modifier or is in a `#[const_trait]`. + // The function has a `const` modifier or is in a `const trait`. let is_const_fn = tcx.is_const_fn(def_id.to_def_id()) || tcx.is_const_default_method(def_id.to_def_id()); (is_const_fn, opt) diff --git a/compiler/rustc_middle/src/hir/map.rs b/compiler/rustc_middle/src/hir/map.rs index 84710e5e636..42a1e7377f4 100644 --- a/compiler/rustc_middle/src/hir/map.rs +++ b/compiler/rustc_middle/src/hir/map.rs @@ -940,7 +940,7 @@ impl<'tcx> TyCtxt<'tcx> { }) => until_within(*outer_span, ty.span), // With generics and bounds. Node::Item(Item { - kind: ItemKind::Trait(_, _, _, generics, bounds, _), + kind: ItemKind::Trait(_, _, _, _, generics, bounds, _), span: outer_span, .. }) diff --git a/compiler/rustc_middle/src/infer/canonical.rs b/compiler/rustc_middle/src/infer/canonical.rs index 2bbc48b633c..4fe4c2dadee 100644 --- a/compiler/rustc_middle/src/infer/canonical.rs +++ b/compiler/rustc_middle/src/infer/canonical.rs @@ -81,13 +81,18 @@ pub struct QueryResponse<'tcx, R> { #[derive(HashStable, TypeFoldable, TypeVisitable)] pub struct QueryRegionConstraints<'tcx> { pub outlives: Vec<QueryOutlivesConstraint<'tcx>>, + pub assumptions: Vec<ty::ArgOutlivesPredicate<'tcx>>, } impl QueryRegionConstraints<'_> { - /// Represents an empty (trivially true) set of region - /// constraints. + /// Represents an empty (trivially true) set of region constraints. + /// + /// FIXME(higher_ranked_auto): This could still just be true if there are only assumptions? + /// Because I don't expect for us to get cases where an assumption from one query would + /// discharge a requirement from another query, which is a potential problem if we did throw + /// away these assumptions because there were no constraints. pub fn is_empty(&self) -> bool { - self.outlives.is_empty() + self.outlives.is_empty() && self.assumptions.is_empty() } } @@ -130,8 +135,7 @@ impl<'tcx, R> QueryResponse<'tcx, R> { } } -pub type QueryOutlivesConstraint<'tcx> = - (ty::OutlivesPredicate<'tcx, GenericArg<'tcx>>, ConstraintCategory<'tcx>); +pub type QueryOutlivesConstraint<'tcx> = (ty::ArgOutlivesPredicate<'tcx>, ConstraintCategory<'tcx>); #[derive(Default)] pub struct CanonicalParamEnvCache<'tcx> { diff --git a/compiler/rustc_middle/src/middle/codegen_fn_attrs.rs b/compiler/rustc_middle/src/middle/codegen_fn_attrs.rs index 2f16d385efb..6eae3b51e29 100644 --- a/compiler/rustc_middle/src/middle/codegen_fn_attrs.rs +++ b/compiler/rustc_middle/src/middle/codegen_fn_attrs.rs @@ -1,3 +1,5 @@ +use std::borrow::Cow; + use rustc_abi::Align; use rustc_ast::expand::autodiff_attrs::AutoDiffAttrs; use rustc_attr_data_structures::{InlineAttr, InstructionSetAttr, OptimizeAttr}; @@ -6,6 +8,26 @@ use rustc_span::Symbol; use rustc_target::spec::SanitizerSet; use crate::mir::mono::Linkage; +use crate::ty::{InstanceKind, TyCtxt}; + +impl<'tcx> TyCtxt<'tcx> { + pub fn codegen_instance_attrs( + self, + instance_kind: InstanceKind<'_>, + ) -> Cow<'tcx, CodegenFnAttrs> { + let mut attrs = Cow::Borrowed(self.codegen_fn_attrs(instance_kind.def_id())); + + // Drop the `#[naked]` attribute on non-item `InstanceKind`s, like the shims that + // are generated for indirect function calls. + if !matches!(instance_kind, InstanceKind::Item(_)) { + if attrs.flags.contains(CodegenFnAttrFlags::NAKED) { + attrs.to_mut().flags.remove(CodegenFnAttrFlags::NAKED); + } + } + + attrs + } +} #[derive(Clone, TyEncodable, TyDecodable, HashStable, Debug)] pub struct CodegenFnAttrs { diff --git a/compiler/rustc_middle/src/mir/interpret/error.rs b/compiler/rustc_middle/src/mir/interpret/error.rs index 71e0c943fbb..3e68afbfabd 100644 --- a/compiler/rustc_middle/src/mir/interpret/error.rs +++ b/compiler/rustc_middle/src/mir/interpret/error.rs @@ -257,7 +257,7 @@ pub enum InvalidProgramInfo<'tcx> { /// Details of why a pointer had to be in-bounds. #[derive(Debug, Copy, Clone)] pub enum CheckInAllocMsg { - /// We are access memory. + /// We are accessing memory. MemoryAccess, /// We are doing pointer arithmetic. InboundsPointerArithmetic, diff --git a/compiler/rustc_middle/src/mir/mono.rs b/compiler/rustc_middle/src/mir/mono.rs index 47ba850d50d..2d7ddd105bd 100644 --- a/compiler/rustc_middle/src/mir/mono.rs +++ b/compiler/rustc_middle/src/mir/mono.rs @@ -152,7 +152,7 @@ impl<'tcx> MonoItem<'tcx> { // If the function is #[naked] or contains any other attribute that requires exactly-once // instantiation: // We emit an unused_attributes lint for this case, which should be kept in sync if possible. - let codegen_fn_attrs = tcx.codegen_fn_attrs(instance.def_id()); + let codegen_fn_attrs = tcx.codegen_instance_attrs(instance.def); if codegen_fn_attrs.contains_extern_indicator() || codegen_fn_attrs.flags.contains(CodegenFnAttrFlags::NAKED) { @@ -219,7 +219,7 @@ impl<'tcx> MonoItem<'tcx> { // functions the same as those that unconditionally get LocalCopy codegen. It's only when // we get here that we can at least not codegen a #[inline(never)] generic function in all // of our CGUs. - if let InlineAttr::Never = tcx.codegen_fn_attrs(instance.def_id()).inline + if let InlineAttr::Never = codegen_fn_attrs.inline && self.is_generic_fn() { return InstantiationMode::GloballyShared { may_conflict: true }; @@ -234,14 +234,13 @@ impl<'tcx> MonoItem<'tcx> { } pub fn explicit_linkage(&self, tcx: TyCtxt<'tcx>) -> Option<Linkage> { - let def_id = match *self { - MonoItem::Fn(ref instance) => instance.def_id(), - MonoItem::Static(def_id) => def_id, + let instance_kind = match *self { + MonoItem::Fn(ref instance) => instance.def, + MonoItem::Static(def_id) => InstanceKind::Item(def_id), MonoItem::GlobalAsm(..) => return None, }; - let codegen_fn_attrs = tcx.codegen_fn_attrs(def_id); - codegen_fn_attrs.linkage + tcx.codegen_instance_attrs(instance_kind).linkage } /// Returns `true` if this instance is instantiable - whether it has no unsatisfied diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs index 935cc889574..d5c2b6de4ae 100644 --- a/compiler/rustc_middle/src/query/mod.rs +++ b/compiler/rustc_middle/src/query/mod.rs @@ -988,7 +988,7 @@ rustc_queries! { } query coroutine_hidden_types( - def_id: DefId + def_id: DefId, ) -> ty::EarlyBinder<'tcx, ty::Binder<'tcx, ty::CoroutineWitnessTypes<TyCtxt<'tcx>>>> { desc { "looking up the hidden types stored across await points in a coroutine" } } @@ -1505,6 +1505,15 @@ rustc_queries! { separate_provide_extern } + /// Returns the `CodegenFnAttrs` for the item at `def_id`. + /// + /// If possible, use `tcx.codegen_instance_attrs` instead. That function takes the + /// instance kind into account. + /// + /// For example, the `#[naked]` attribute should be applied for `InstanceKind::Item`, + /// but should not be applied if the instance kind is `InstanceKind::ReifyShim`. + /// Using this query would include the attribute regardless of the actual instance + /// kind at the call site. query codegen_fn_attrs(def_id: DefId) -> &'tcx CodegenFnAttrs { desc { |tcx| "computing codegen attributes of `{}`", tcx.def_path_str(def_id) } arena_cache diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index 98b2ce01d89..81c13e55dd8 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -137,6 +137,7 @@ impl<'tcx> Interner for TyCtxt<'tcx> { type FnInputTys = &'tcx [Ty<'tcx>]; type ParamTy = ParamTy; type BoundTy = ty::BoundTy; + type Symbol = Symbol; type PlaceholderTy = ty::PlaceholderType; type ErrorGuaranteed = ErrorGuaranteed; @@ -162,6 +163,8 @@ impl<'tcx> Interner for TyCtxt<'tcx> { type BoundRegion = ty::BoundRegion; type PlaceholderRegion = ty::PlaceholderRegion; + type RegionAssumptions = &'tcx ty::List<ty::ArgOutlivesPredicate<'tcx>>; + type ParamEnv = ty::ParamEnv<'tcx>; type Predicate = Predicate<'tcx>; @@ -713,17 +716,13 @@ impl<'tcx> Interner for TyCtxt<'tcx> { self, defining_anchor: Self::LocalDefId, ) -> Self::LocalDefIds { - if self.next_trait_solver_globally() { - let coroutines_defined_by = self - .nested_bodies_within(defining_anchor) - .iter() - .filter(|def_id| self.is_coroutine(def_id.to_def_id())); - self.mk_local_def_ids_from_iter( - self.opaque_types_defined_by(defining_anchor).iter().chain(coroutines_defined_by), - ) - } else { - self.opaque_types_defined_by(defining_anchor) - } + let coroutines_defined_by = self + .nested_bodies_within(defining_anchor) + .iter() + .filter(|def_id| self.is_coroutine(def_id.to_def_id())); + self.mk_local_def_ids_from_iter( + self.opaque_types_defined_by(defining_anchor).iter().chain(coroutines_defined_by), + ) } } @@ -833,6 +832,13 @@ impl<'tcx> rustc_type_ir::inherent::Features<TyCtxt<'tcx>> for &'tcx rustc_featu fn associated_const_equality(self) -> bool { self.associated_const_equality() } + + fn feature_bound_holds_in_crate(self, symbol: Symbol) -> bool { + // We don't consider feature bounds to hold in the crate when `staged_api` feature is + // enabled, even if it is enabled through `#[feature]`. + // This is to prevent accidentally leaking unstable APIs to stable. + !self.staged_api() && self.enabled(symbol) + } } impl<'tcx> rustc_type_ir::inherent::Span<TyCtxt<'tcx>> for Span { @@ -874,6 +880,7 @@ pub struct CtxtInterners<'tcx> { offset_of: InternedSet<'tcx, List<(VariantIdx, FieldIdx)>>, valtree: InternedSet<'tcx, ty::ValTreeKind<'tcx>>, patterns: InternedSet<'tcx, List<ty::Pattern<'tcx>>>, + outlives: InternedSet<'tcx, List<ty::ArgOutlivesPredicate<'tcx>>>, } impl<'tcx> CtxtInterners<'tcx> { @@ -911,6 +918,7 @@ impl<'tcx> CtxtInterners<'tcx> { offset_of: InternedSet::with_capacity(N), valtree: InternedSet::with_capacity(N), patterns: InternedSet::with_capacity(N), + outlives: InternedSet::with_capacity(N), } } @@ -2692,6 +2700,7 @@ slice_interners!( captures: intern_captures(&'tcx ty::CapturedPlace<'tcx>), offset_of: pub mk_offset_of((VariantIdx, FieldIdx)), patterns: pub mk_patterns(Pattern<'tcx>), + outlives: pub mk_outlives(ty::ArgOutlivesPredicate<'tcx>), ); impl<'tcx> TyCtxt<'tcx> { @@ -3107,6 +3116,17 @@ impl<'tcx> TyCtxt<'tcx> { T::collect_and_apply(iter, |xs| self.mk_bound_variable_kinds(xs)) } + pub fn mk_outlives_from_iter<I, T>(self, iter: I) -> T::Output + where + I: Iterator<Item = T>, + T: CollectAndApply< + ty::ArgOutlivesPredicate<'tcx>, + &'tcx ty::List<ty::ArgOutlivesPredicate<'tcx>>, + >, + { + T::collect_and_apply(iter, |xs| self.mk_outlives(xs)) + } + /// Emit a lint at `span` from a lint struct (some type that implements `LintDiagnostic`, /// typically generated by `#[derive(LintDiagnostic)]`). #[track_caller] diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index 6e8f1e8fdd5..a7cde2ad485 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -88,7 +88,7 @@ pub use self::opaque_types::OpaqueTypeKey; pub use self::parameterized::ParameterizedOverTcx; pub use self::pattern::{Pattern, PatternKind}; pub use self::predicate::{ - AliasTerm, Clause, ClauseKind, CoercePredicate, ExistentialPredicate, + AliasTerm, ArgOutlivesPredicate, Clause, ClauseKind, CoercePredicate, ExistentialPredicate, ExistentialPredicateStableCmpExt, ExistentialProjection, ExistentialTraitRef, HostEffectPredicate, NormalizesTo, OutlivesPredicate, PolyCoercePredicate, PolyExistentialPredicate, PolyExistentialProjection, PolyExistentialTraitRef, diff --git a/compiler/rustc_middle/src/ty/predicate.rs b/compiler/rustc_middle/src/ty/predicate.rs index bc2ac42b6b1..46f254e9d30 100644 --- a/compiler/rustc_middle/src/ty/predicate.rs +++ b/compiler/rustc_middle/src/ty/predicate.rs @@ -26,6 +26,7 @@ pub type SubtypePredicate<'tcx> = ir::SubtypePredicate<TyCtxt<'tcx>>; pub type OutlivesPredicate<'tcx, T> = ir::OutlivesPredicate<TyCtxt<'tcx>, T>; pub type RegionOutlivesPredicate<'tcx> = OutlivesPredicate<'tcx, ty::Region<'tcx>>; pub type TypeOutlivesPredicate<'tcx> = OutlivesPredicate<'tcx, Ty<'tcx>>; +pub type ArgOutlivesPredicate<'tcx> = OutlivesPredicate<'tcx, ty::GenericArg<'tcx>>; pub type PolyTraitPredicate<'tcx> = ty::Binder<'tcx, TraitPredicate<'tcx>>; pub type PolyRegionOutlivesPredicate<'tcx> = ty::Binder<'tcx, RegionOutlivesPredicate<'tcx>>; pub type PolyTypeOutlivesPredicate<'tcx> = ty::Binder<'tcx, TypeOutlivesPredicate<'tcx>>; @@ -131,6 +132,7 @@ impl<'tcx> Predicate<'tcx> { | PredicateKind::Clause(ClauseKind::TypeOutlives(_)) | PredicateKind::Clause(ClauseKind::Projection(_)) | PredicateKind::Clause(ClauseKind::ConstArgHasType(..)) + | PredicateKind::Clause(ClauseKind::UnstableFeature(_)) | PredicateKind::DynCompatible(_) | PredicateKind::Subtype(_) | PredicateKind::Coerce(_) @@ -649,6 +651,7 @@ impl<'tcx> Predicate<'tcx> { PredicateKind::Clause(ClauseKind::Projection(..)) | PredicateKind::Clause(ClauseKind::HostEffect(..)) | PredicateKind::Clause(ClauseKind::ConstArgHasType(..)) + | PredicateKind::Clause(ClauseKind::UnstableFeature(_)) | PredicateKind::NormalizesTo(..) | PredicateKind::AliasRelate(..) | PredicateKind::Subtype(..) @@ -670,6 +673,7 @@ impl<'tcx> Predicate<'tcx> { PredicateKind::Clause(ClauseKind::Trait(..)) | PredicateKind::Clause(ClauseKind::HostEffect(..)) | PredicateKind::Clause(ClauseKind::ConstArgHasType(..)) + | PredicateKind::Clause(ClauseKind::UnstableFeature(_)) | PredicateKind::NormalizesTo(..) | PredicateKind::AliasRelate(..) | PredicateKind::Subtype(..) diff --git a/compiler/rustc_middle/src/ty/print/pretty.rs b/compiler/rustc_middle/src/ty/print/pretty.rs index 7c48a4b0885..2eb530f328d 100644 --- a/compiler/rustc_middle/src/ty/print/pretty.rs +++ b/compiler/rustc_middle/src/ty/print/pretty.rs @@ -2430,7 +2430,7 @@ impl<'tcx> Printer<'tcx> for FmtPrinter<'_, 'tcx> { } let verbose = self.should_print_verbose(); - disambiguated_data.fmt_maybe_verbose(self, verbose)?; + write!(self, "{}", disambiguated_data.as_sym(verbose))?; self.empty_path = false; @@ -3237,6 +3237,7 @@ define_print! { ty::ClauseKind::ConstEvaluatable(ct) => { p!("the constant `", print(ct), "` can be evaluated") } + ty::ClauseKind::UnstableFeature(symbol) => p!("unstable feature: ", write("`{}`", symbol)), } } @@ -3454,9 +3455,7 @@ fn for_each_def(tcx: TyCtxt<'_>, mut collect_fn: impl for<'b> FnMut(&'b Ident, N collect_fn(&child.ident, ns, def_id); } - if matches!(defkind, DefKind::Mod | DefKind::Enum | DefKind::Trait) - && seen_defs.insert(def_id) - { + if defkind.is_module_like() && seen_defs.insert(def_id) { queue.push(def_id); } } diff --git a/compiler/rustc_middle/src/ty/structural_impls.rs b/compiler/rustc_middle/src/ty/structural_impls.rs index af9c98bd87d..ab31d943408 100644 --- a/compiler/rustc_middle/src/ty/structural_impls.rs +++ b/compiler/rustc_middle/src/ty/structural_impls.rs @@ -802,4 +802,5 @@ list_fold! { &'tcx ty::List<ty::PolyExistentialPredicate<'tcx>> : mk_poly_existential_predicates, &'tcx ty::List<PlaceElem<'tcx>> : mk_place_elems, &'tcx ty::List<ty::Pattern<'tcx>> : mk_patterns, + &'tcx ty::List<ty::ArgOutlivesPredicate<'tcx>> : mk_outlives, } diff --git a/compiler/rustc_middle/src/ty/trait_def.rs b/compiler/rustc_middle/src/ty/trait_def.rs index ea25ce65f77..59e2b2a034d 100644 --- a/compiler/rustc_middle/src/ty/trait_def.rs +++ b/compiler/rustc_middle/src/ty/trait_def.rs @@ -20,7 +20,7 @@ pub struct TraitDef { pub safety: hir::Safety, - /// Whether this trait has been annotated with `#[const_trait]`. + /// Whether this trait is `const`. pub constness: hir::Constness, /// If `true`, then this trait had the `#[rustc_paren_sugar]` diff --git a/compiler/rustc_mir_transform/src/coverage/query.rs b/compiler/rustc_mir_transform/src/coverage/query.rs index ccf76dc7108..986c001de5e 100644 --- a/compiler/rustc_mir_transform/src/coverage/query.rs +++ b/compiler/rustc_mir_transform/src/coverage/query.rs @@ -1,3 +1,4 @@ +use rustc_attr_data_structures::{AttributeKind, CoverageStatus, find_attr}; use rustc_index::bit_set::DenseBitSet; use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrFlags; use rustc_middle::mir::coverage::{BasicCoverageBlock, CoverageIdsInfo, CoverageKind, MappingKind}; @@ -5,7 +6,6 @@ use rustc_middle::mir::{Body, Statement, StatementKind}; use rustc_middle::ty::{self, TyCtxt}; use rustc_middle::util::Providers; use rustc_span::def_id::LocalDefId; -use rustc_span::sym; use tracing::trace; use crate::coverage::counters::node_flow::make_node_counters; @@ -58,26 +58,20 @@ fn is_eligible_for_coverage(tcx: TyCtxt<'_>, def_id: LocalDefId) -> bool { /// Query implementation for `coverage_attr_on`. fn coverage_attr_on(tcx: TyCtxt<'_>, def_id: LocalDefId) -> bool { // Check for annotations directly on this def. - if let Some(attr) = tcx.get_attr(def_id, sym::coverage) { - match attr.meta_item_list().as_deref() { - Some([item]) if item.has_name(sym::off) => return false, - Some([item]) if item.has_name(sym::on) => return true, - Some(_) | None => { - // Other possibilities should have been rejected by `rustc_parse::validate_attr`. - // Use `span_delayed_bug` to avoid an ICE in failing builds (#127880). - tcx.dcx().span_delayed_bug(attr.span(), "unexpected value of coverage attribute"); - } + if let Some(coverage_status) = + find_attr!(tcx.get_all_attrs(def_id), AttributeKind::Coverage(_, status) => status) + { + *coverage_status == CoverageStatus::On + } else { + match tcx.opt_local_parent(def_id) { + // Check the parent def (and so on recursively) until we find an + // enclosing attribute or reach the crate root. + Some(parent) => tcx.coverage_attr_on(parent), + // We reached the crate root without seeing a coverage attribute, so + // allow coverage instrumentation by default. + None => true, } } - - match tcx.opt_local_parent(def_id) { - // Check the parent def (and so on recursively) until we find an - // enclosing attribute or reach the crate root. - Some(parent) => tcx.coverage_attr_on(parent), - // We reached the crate root without seeing a coverage attribute, so - // allow coverage instrumentation by default. - None => true, - } } /// Query implementation for `coverage_ids_info`. diff --git a/compiler/rustc_mir_transform/src/gvn.rs b/compiler/rustc_mir_transform/src/gvn.rs index 6b11706d2b5..07717b7c069 100644 --- a/compiler/rustc_mir_transform/src/gvn.rs +++ b/compiler/rustc_mir_transform/src/gvn.rs @@ -105,7 +105,6 @@ use rustc_middle::mir::*; use rustc_middle::ty::layout::HasTypingEnv; use rustc_middle::ty::{self, Ty, TyCtxt}; use rustc_span::DUMMY_SP; -use rustc_span::def_id::DefId; use smallvec::SmallVec; use tracing::{debug, instrument, trace}; @@ -130,7 +129,7 @@ impl<'tcx> crate::MirPass<'tcx> for GVN { let mut state = VnState::new(tcx, body, typing_env, &ssa, dominators, &body.local_decls); for local in body.args_iter().filter(|&local| ssa.is_ssa(local)) { - let opaque = state.new_opaque(); + let opaque = state.new_opaque(body.local_decls[local].ty); state.assign(local, opaque); } @@ -155,22 +154,6 @@ newtype_index! { struct VnIndex {} } -/// Computing the aggregate's type can be quite slow, so we only keep the minimal amount of -/// information to reconstruct it when needed. -#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)] -enum AggregateTy<'tcx> { - /// Invariant: this must not be used for an empty array. - Array, - Tuple, - Def(DefId, ty::GenericArgsRef<'tcx>), - RawPtr { - /// Needed for cast propagation. - data_pointer_ty: Ty<'tcx>, - /// The data pointer can be anything thin, so doesn't determine the output. - output_pointer_ty: Ty<'tcx>, - }, -} - #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)] enum AddressKind { Ref(BorrowKind), @@ -193,7 +176,14 @@ enum Value<'tcx> { }, /// An aggregate value, either tuple/closure/struct/enum. /// This does not contain unions, as we cannot reason with the value. - Aggregate(AggregateTy<'tcx>, VariantIdx, Vec<VnIndex>), + Aggregate(VariantIdx, Vec<VnIndex>), + /// A raw pointer aggregate built from a thin pointer and metadata. + RawPtr { + /// Thin pointer component. This is field 0 in MIR. + pointer: VnIndex, + /// Metadata component. This is field 1 in MIR. + metadata: VnIndex, + }, /// This corresponds to a `[value; count]` expression. Repeat(VnIndex, ty::Const<'tcx>), /// The address of a place. @@ -206,7 +196,7 @@ enum Value<'tcx> { // Extractions. /// This is the *value* obtained by projecting another value. - Projection(VnIndex, ProjectionElem<VnIndex, Ty<'tcx>>), + Projection(VnIndex, ProjectionElem<VnIndex, ()>), /// Discriminant of the given value. Discriminant(VnIndex), /// Length of an array or slice. @@ -219,8 +209,6 @@ enum Value<'tcx> { Cast { kind: CastKind, value: VnIndex, - from: Ty<'tcx>, - to: Ty<'tcx>, }, } @@ -228,12 +216,13 @@ struct VnState<'body, 'tcx> { tcx: TyCtxt<'tcx>, ecx: InterpCx<'tcx, DummyMachine>, local_decls: &'body LocalDecls<'tcx>, + is_coroutine: bool, /// Value stored in each local. locals: IndexVec<Local, Option<VnIndex>>, /// Locals that are assigned that value. // This vector does not hold all the values of `VnIndex` that we create. rev_locals: IndexVec<VnIndex, SmallVec<[Local; 1]>>, - values: FxIndexSet<Value<'tcx>>, + values: FxIndexSet<(Value<'tcx>, Ty<'tcx>)>, /// Values evaluated as constants if possible. evaluated: IndexVec<VnIndex, Option<OpTy<'tcx>>>, /// Counter to generate different values. @@ -265,6 +254,7 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { tcx, ecx: InterpCx::new(tcx, DUMMY_SP, typing_env, DummyMachine), local_decls, + is_coroutine: body.coroutine.is_some(), locals: IndexVec::from_elem(None, local_decls), rev_locals: IndexVec::with_capacity(num_values), values: FxIndexSet::with_capacity_and_hasher(num_values, Default::default()), @@ -282,8 +272,8 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { } #[instrument(level = "trace", skip(self), ret)] - fn insert(&mut self, value: Value<'tcx>) -> VnIndex { - let (index, new) = self.values.insert_full(value); + fn insert(&mut self, ty: Ty<'tcx>, value: Value<'tcx>) -> VnIndex { + let (index, new) = self.values.insert_full((value, ty)); let index = VnIndex::from_usize(index); if new { // Grow `evaluated` and `rev_locals` here to amortize the allocations. @@ -305,20 +295,33 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { /// Create a new `Value` for which we have no information at all, except that it is distinct /// from all the others. #[instrument(level = "trace", skip(self), ret)] - fn new_opaque(&mut self) -> VnIndex { + fn new_opaque(&mut self, ty: Ty<'tcx>) -> VnIndex { let value = Value::Opaque(self.next_opaque()); - self.insert(value) + self.insert(ty, value) } /// Create a new `Value::Address` distinct from all the others. #[instrument(level = "trace", skip(self), ret)] fn new_pointer(&mut self, place: Place<'tcx>, kind: AddressKind) -> VnIndex { + let pty = place.ty(self.local_decls, self.tcx).ty; + let ty = match kind { + AddressKind::Ref(bk) => { + Ty::new_ref(self.tcx, self.tcx.lifetimes.re_erased, pty, bk.to_mutbl_lossy()) + } + AddressKind::Address(mutbl) => Ty::new_ptr(self.tcx, pty, mutbl.to_mutbl_lossy()), + }; let value = Value::Address { place, kind, provenance: self.next_opaque() }; - self.insert(value) + self.insert(ty, value) } + #[inline] fn get(&self, index: VnIndex) -> &Value<'tcx> { - self.values.get_index(index.as_usize()).unwrap() + &self.values.get_index(index.as_usize()).unwrap().0 + } + + #[inline] + fn ty(&self, index: VnIndex) -> Ty<'tcx> { + self.values.get_index(index.as_usize()).unwrap().1 } /// Record that `local` is assigned `value`. `local` must be SSA. @@ -341,29 +344,29 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { debug_assert_ne!(disambiguator, 0); disambiguator }; - self.insert(Value::Constant { value, disambiguator }) + self.insert(value.ty(), Value::Constant { value, disambiguator }) } fn insert_bool(&mut self, flag: bool) -> VnIndex { // Booleans are deterministic. let value = Const::from_bool(self.tcx, flag); debug_assert!(value.is_deterministic()); - self.insert(Value::Constant { value, disambiguator: 0 }) + self.insert(self.tcx.types.bool, Value::Constant { value, disambiguator: 0 }) } - fn insert_scalar(&mut self, scalar: Scalar, ty: Ty<'tcx>) -> VnIndex { + fn insert_scalar(&mut self, ty: Ty<'tcx>, scalar: Scalar) -> VnIndex { // Scalars are deterministic. let value = Const::from_scalar(self.tcx, scalar, ty); debug_assert!(value.is_deterministic()); - self.insert(Value::Constant { value, disambiguator: 0 }) + self.insert(ty, Value::Constant { value, disambiguator: 0 }) } - fn insert_tuple(&mut self, values: Vec<VnIndex>) -> VnIndex { - self.insert(Value::Aggregate(AggregateTy::Tuple, VariantIdx::ZERO, values)) + fn insert_tuple(&mut self, ty: Ty<'tcx>, values: Vec<VnIndex>) -> VnIndex { + self.insert(ty, Value::Aggregate(VariantIdx::ZERO, values)) } - fn insert_deref(&mut self, value: VnIndex) -> VnIndex { - let value = self.insert(Value::Projection(value, ProjectionElem::Deref)); + fn insert_deref(&mut self, ty: Ty<'tcx>, value: VnIndex) -> VnIndex { + let value = self.insert(ty, Value::Projection(value, ProjectionElem::Deref)); self.derefs.push(value); value } @@ -371,14 +374,23 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { fn invalidate_derefs(&mut self) { for deref in std::mem::take(&mut self.derefs) { let opaque = self.next_opaque(); - *self.values.get_index_mut2(deref.index()).unwrap() = Value::Opaque(opaque); + self.values.get_index_mut2(deref.index()).unwrap().0 = Value::Opaque(opaque); } } #[instrument(level = "trace", skip(self), ret)] fn eval_to_const(&mut self, value: VnIndex) -> Option<OpTy<'tcx>> { use Value::*; + let ty = self.ty(value); + // Avoid computing layouts inside a coroutine, as that can cause cycles. + let ty = if !self.is_coroutine || ty.is_scalar() { + self.ecx.layout_of(ty).ok()? + } else { + return None; + }; let op = match *self.get(value) { + _ if ty.is_zst() => ImmTy::uninit(ty).into(), + Opaque(_) => return None, // Do not bother evaluating repeat expressions. This would uselessly consume memory. Repeat(..) => return None, @@ -386,42 +398,14 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { Constant { ref value, disambiguator: _ } => { self.ecx.eval_mir_constant(value, DUMMY_SP, None).discard_err()? } - Aggregate(kind, variant, ref fields) => { + Aggregate(variant, ref fields) => { let fields = fields .iter() .map(|&f| self.evaluated[f].as_ref()) .collect::<Option<Vec<_>>>()?; - let ty = match kind { - AggregateTy::Array => { - assert!(fields.len() > 0); - Ty::new_array(self.tcx, fields[0].layout.ty, fields.len() as u64) - } - AggregateTy::Tuple => { - Ty::new_tup_from_iter(self.tcx, fields.iter().map(|f| f.layout.ty)) - } - AggregateTy::Def(def_id, args) => { - self.tcx.type_of(def_id).instantiate(self.tcx, args) - } - AggregateTy::RawPtr { output_pointer_ty, .. } => output_pointer_ty, - }; - let variant = if ty.is_enum() { Some(variant) } else { None }; - let ty = self.ecx.layout_of(ty).ok()?; - if ty.is_zst() { - ImmTy::uninit(ty).into() - } else if matches!(kind, AggregateTy::RawPtr { .. }) { - // Pointers don't have fields, so don't `project_field` them. - let data = self.ecx.read_pointer(fields[0]).discard_err()?; - let meta = if fields[1].layout.is_zst() { - MemPlaceMeta::None - } else { - MemPlaceMeta::Meta(self.ecx.read_scalar(fields[1]).discard_err()?) - }; - let ptr_imm = Immediate::new_pointer_with_meta(data, meta, &self.ecx); - ImmTy::from_immediate(ptr_imm, ty).into() - } else if matches!( - ty.backend_repr, - BackendRepr::Scalar(..) | BackendRepr::ScalarPair(..) - ) { + let variant = if ty.ty.is_enum() { Some(variant) } else { None }; + if matches!(ty.backend_repr, BackendRepr::Scalar(..) | BackendRepr::ScalarPair(..)) + { let dest = self.ecx.allocate(ty, MemoryKind::Stack).discard_err()?; let variant_dest = if let Some(variant) = variant { self.ecx.project_downcast(&dest, variant).discard_err()? @@ -446,32 +430,46 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { return None; } } + RawPtr { pointer, metadata } => { + let pointer = self.evaluated[pointer].as_ref()?; + let metadata = self.evaluated[metadata].as_ref()?; + + // Pointers don't have fields, so don't `project_field` them. + let data = self.ecx.read_pointer(pointer).discard_err()?; + let meta = if metadata.layout.is_zst() { + MemPlaceMeta::None + } else { + MemPlaceMeta::Meta(self.ecx.read_scalar(metadata).discard_err()?) + }; + let ptr_imm = Immediate::new_pointer_with_meta(data, meta, &self.ecx); + ImmTy::from_immediate(ptr_imm, ty).into() + } Projection(base, elem) => { - let value = self.evaluated[base].as_ref()?; + let base = self.evaluated[base].as_ref()?; let elem = match elem { ProjectionElem::Deref => ProjectionElem::Deref, ProjectionElem::Downcast(name, read_variant) => { ProjectionElem::Downcast(name, read_variant) } - ProjectionElem::Field(f, ty) => ProjectionElem::Field(f, ty), + ProjectionElem::Field(f, ()) => ProjectionElem::Field(f, ty.ty), ProjectionElem::ConstantIndex { offset, min_length, from_end } => { ProjectionElem::ConstantIndex { offset, min_length, from_end } } ProjectionElem::Subslice { from, to, from_end } => { ProjectionElem::Subslice { from, to, from_end } } - ProjectionElem::OpaqueCast(ty) => ProjectionElem::OpaqueCast(ty), - ProjectionElem::Subtype(ty) => ProjectionElem::Subtype(ty), - ProjectionElem::UnwrapUnsafeBinder(ty) => { - ProjectionElem::UnwrapUnsafeBinder(ty) + ProjectionElem::OpaqueCast(()) => ProjectionElem::OpaqueCast(ty.ty), + ProjectionElem::Subtype(()) => ProjectionElem::Subtype(ty.ty), + ProjectionElem::UnwrapUnsafeBinder(()) => { + ProjectionElem::UnwrapUnsafeBinder(ty.ty) } // This should have been replaced by a `ConstantIndex` earlier. ProjectionElem::Index(_) => return None, }; - self.ecx.project(value, elem).discard_err()? + self.ecx.project(base, elem).discard_err()? } - Address { place, kind, provenance: _ } => { + Address { place, kind: _, provenance: _ } => { if !place.is_indirect_first_projection() { return None; } @@ -487,19 +485,7 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { mplace = self.ecx.project(&mplace, proj).discard_err()?; } let pointer = mplace.to_ref(&self.ecx); - let ty = match kind { - AddressKind::Ref(bk) => Ty::new_ref( - self.tcx, - self.tcx.lifetimes.re_erased, - mplace.layout.ty, - bk.to_mutbl_lossy(), - ), - AddressKind::Address(mutbl) => { - Ty::new_ptr(self.tcx, mplace.layout.ty, mutbl.to_mutbl_lossy()) - } - }; - let layout = self.ecx.layout_of(ty).ok()?; - ImmTy::from_immediate(pointer, layout).into() + ImmTy::from_immediate(pointer, ty).into() } Discriminant(base) => { @@ -511,32 +497,28 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { } Len(slice) => { let slice = self.evaluated[slice].as_ref()?; - let usize_layout = self.ecx.layout_of(self.tcx.types.usize).unwrap(); let len = slice.len(&self.ecx).discard_err()?; - let imm = ImmTy::from_uint(len, usize_layout); - imm.into() + ImmTy::from_uint(len, ty).into() } - NullaryOp(null_op, ty) => { - let layout = self.ecx.layout_of(ty).ok()?; + NullaryOp(null_op, arg_ty) => { + let arg_layout = self.ecx.layout_of(arg_ty).ok()?; if let NullOp::SizeOf | NullOp::AlignOf = null_op - && layout.is_unsized() + && arg_layout.is_unsized() { return None; } let val = match null_op { - NullOp::SizeOf => layout.size.bytes(), - NullOp::AlignOf => layout.align.abi.bytes(), + NullOp::SizeOf => arg_layout.size.bytes(), + NullOp::AlignOf => arg_layout.align.abi.bytes(), NullOp::OffsetOf(fields) => self .ecx .tcx - .offset_of_subfield(self.typing_env(), layout, fields.iter()) + .offset_of_subfield(self.typing_env(), arg_layout, fields.iter()) .bytes(), NullOp::UbChecks => return None, NullOp::ContractChecks => return None, }; - let usize_layout = self.ecx.layout_of(self.tcx.types.usize).unwrap(); - let imm = ImmTy::from_uint(val, usize_layout); - imm.into() + ImmTy::from_uint(val, ty).into() } UnaryOp(un_op, operand) => { let operand = self.evaluated[operand].as_ref()?; @@ -552,30 +534,27 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { let val = self.ecx.binary_op(bin_op, &lhs, &rhs).discard_err()?; val.into() } - Cast { kind, value, from: _, to } => match kind { + Cast { kind, value } => match kind { CastKind::IntToInt | CastKind::IntToFloat => { let value = self.evaluated[value].as_ref()?; let value = self.ecx.read_immediate(value).discard_err()?; - let to = self.ecx.layout_of(to).ok()?; - let res = self.ecx.int_to_int_or_float(&value, to).discard_err()?; + let res = self.ecx.int_to_int_or_float(&value, ty).discard_err()?; res.into() } CastKind::FloatToFloat | CastKind::FloatToInt => { let value = self.evaluated[value].as_ref()?; let value = self.ecx.read_immediate(value).discard_err()?; - let to = self.ecx.layout_of(to).ok()?; - let res = self.ecx.float_to_float_or_int(&value, to).discard_err()?; + let res = self.ecx.float_to_float_or_int(&value, ty).discard_err()?; res.into() } CastKind::Transmute => { let value = self.evaluated[value].as_ref()?; - let to = self.ecx.layout_of(to).ok()?; // `offset` for immediates generally only supports projections that match the // type of the immediate. However, as a HACK, we exploit that it can also do // limited transmutes: it only works between types with the same layout, and // cannot transmute pointers to integers. if value.as_mplace_or_imm().is_right() { - let can_transmute = match (value.layout.backend_repr, to.backend_repr) { + let can_transmute = match (value.layout.backend_repr, ty.backend_repr) { (BackendRepr::Scalar(s1), BackendRepr::Scalar(s2)) => { s1.size(&self.ecx) == s2.size(&self.ecx) && !matches!(s1.primitive(), Primitive::Pointer(..)) @@ -595,13 +574,12 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { return None; } } - value.offset(Size::ZERO, to, &self.ecx).discard_err()? + value.offset(Size::ZERO, ty, &self.ecx).discard_err()? } CastKind::PointerCoercion(ty::adjustment::PointerCoercion::Unsize, _) => { let src = self.evaluated[value].as_ref()?; - let to = self.ecx.layout_of(to).ok()?; - let dest = self.ecx.allocate(to, MemoryKind::Stack).discard_err()?; - self.ecx.unsize_into(src, to, &dest.clone().into()).discard_err()?; + let dest = self.ecx.allocate(ty, MemoryKind::Stack).discard_err()?; + self.ecx.unsize_into(src, ty, &dest.clone().into()).discard_err()?; self.ecx .alloc_mark_immutable(dest.ptr().provenance.unwrap().alloc_id()) .discard_err()?; @@ -610,15 +588,13 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { CastKind::FnPtrToPtr | CastKind::PtrToPtr => { let src = self.evaluated[value].as_ref()?; let src = self.ecx.read_immediate(src).discard_err()?; - let to = self.ecx.layout_of(to).ok()?; - let ret = self.ecx.ptr_to_ptr(&src, to).discard_err()?; + let ret = self.ecx.ptr_to_ptr(&src, ty).discard_err()?; ret.into() } CastKind::PointerCoercion(ty::adjustment::PointerCoercion::UnsafeFnPointer, _) => { let src = self.evaluated[value].as_ref()?; let src = self.ecx.read_immediate(src).discard_err()?; - let to = self.ecx.layout_of(to).ok()?; - ImmTy::from_immediate(*src, to).into() + ImmTy::from_immediate(*src, ty).into() } _ => return None, }, @@ -628,31 +604,30 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { fn project( &mut self, - place: PlaceRef<'tcx>, + place_ty: PlaceTy<'tcx>, value: VnIndex, proj: PlaceElem<'tcx>, from_non_ssa_index: &mut bool, - ) -> Option<VnIndex> { + ) -> Option<(PlaceTy<'tcx>, VnIndex)> { + let projection_ty = place_ty.projection_ty(self.tcx, proj); let proj = match proj { ProjectionElem::Deref => { - let ty = place.ty(self.local_decls, self.tcx).ty; - if let Some(Mutability::Not) = ty.ref_mutability() - && let Some(pointee_ty) = ty.builtin_deref(true) - && pointee_ty.is_freeze(self.tcx, self.typing_env()) + if let Some(Mutability::Not) = place_ty.ty.ref_mutability() + && projection_ty.ty.is_freeze(self.tcx, self.typing_env()) { // An immutable borrow `_x` always points to the same value for the // lifetime of the borrow, so we can merge all instances of `*_x`. - return Some(self.insert_deref(value)); + return Some((projection_ty, self.insert_deref(projection_ty.ty, value))); } else { return None; } } ProjectionElem::Downcast(name, index) => ProjectionElem::Downcast(name, index), - ProjectionElem::Field(f, ty) => { - if let Value::Aggregate(_, _, fields) = self.get(value) { - return Some(fields[f.as_usize()]); + ProjectionElem::Field(f, _) => { + if let Value::Aggregate(_, fields) = self.get(value) { + return Some((projection_ty, fields[f.as_usize()])); } else if let Value::Projection(outer_value, ProjectionElem::Downcast(_, read_variant)) = self.get(value) - && let Value::Aggregate(_, written_variant, fields) = self.get(*outer_value) + && let Value::Aggregate(written_variant, fields) = self.get(*outer_value) // This pass is not aware of control-flow, so we do not know whether the // replacement we are doing is actually reachable. We could be in any arm of // ``` @@ -670,14 +645,14 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { // a downcast to an inactive variant. && written_variant == read_variant { - return Some(fields[f.as_usize()]); + return Some((projection_ty, fields[f.as_usize()])); } - ProjectionElem::Field(f, ty) + ProjectionElem::Field(f, ()) } ProjectionElem::Index(idx) => { if let Value::Repeat(inner, _) = self.get(value) { *from_non_ssa_index |= self.locals[idx].is_none(); - return Some(*inner); + return Some((projection_ty, *inner)); } let idx = self.locals[idx]?; ProjectionElem::Index(idx) @@ -685,15 +660,16 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { ProjectionElem::ConstantIndex { offset, min_length, from_end } => { match self.get(value) { Value::Repeat(inner, _) => { - return Some(*inner); + return Some((projection_ty, *inner)); } - Value::Aggregate(AggregateTy::Array, _, operands) => { + Value::Aggregate(_, operands) => { let offset = if from_end { operands.len() - offset as usize } else { offset as usize }; - return operands.get(offset).copied(); + let value = operands.get(offset).copied()?; + return Some((projection_ty, value)); } _ => {} }; @@ -702,12 +678,13 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { ProjectionElem::Subslice { from, to, from_end } => { ProjectionElem::Subslice { from, to, from_end } } - ProjectionElem::OpaqueCast(ty) => ProjectionElem::OpaqueCast(ty), - ProjectionElem::Subtype(ty) => ProjectionElem::Subtype(ty), - ProjectionElem::UnwrapUnsafeBinder(ty) => ProjectionElem::UnwrapUnsafeBinder(ty), + ProjectionElem::OpaqueCast(_) => ProjectionElem::OpaqueCast(()), + ProjectionElem::Subtype(_) => ProjectionElem::Subtype(()), + ProjectionElem::UnwrapUnsafeBinder(_) => ProjectionElem::UnwrapUnsafeBinder(()), }; - Some(self.insert(Value::Projection(value, proj))) + let value = self.insert(projection_ty.ty, Value::Projection(value, proj)); + Some((projection_ty, value)) } /// Simplify the projection chain if we know better. @@ -769,6 +746,8 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { // Invariant: `value` holds the value up-to the `index`th projection excluded. let mut value = self.locals[place.local]?; + // Invariant: `value` has type `place_ty`, with optional downcast variant if needed. + let mut place_ty = PlaceTy::from_ty(self.local_decls[place.local].ty); let mut from_non_ssa_index = false; for (index, proj) in place.projection.iter().enumerate() { if let Value::Projection(pointer, ProjectionElem::Deref) = *self.get(value) @@ -786,8 +765,7 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { place_ref = PlaceRef { local, projection: &place.projection[index..] }; } - let base = PlaceRef { local: place.local, projection: &place.projection[..index] }; - value = self.project(base, value, proj, &mut from_non_ssa_index)?; + (place_ty, value) = self.project(place_ty, value, proj, &mut from_non_ssa_index)?; } if let Value::Projection(pointer, ProjectionElem::Deref) = *self.get(value) @@ -864,14 +842,9 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { self.simplify_place_projection(place, location); return Some(self.new_pointer(*place, AddressKind::Address(mutbl))); } - Rvalue::WrapUnsafeBinder(ref mut op, ty) => { + Rvalue::WrapUnsafeBinder(ref mut op, _) => { let value = self.simplify_operand(op, location)?; - Value::Cast { - kind: CastKind::Transmute, - value, - from: op.ty(self.local_decls, self.tcx), - to: ty, - } + Value::Cast { kind: CastKind::Transmute, value } } // Operations. @@ -896,18 +869,17 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { // Unsupported values. Rvalue::ThreadLocalRef(..) | Rvalue::ShallowInitBox(..) => return None, }; - debug!(?value); - Some(self.insert(value)) + let ty = rvalue.ty(self.local_decls, self.tcx); + Some(self.insert(ty, value)) } fn simplify_discriminant(&mut self, place: VnIndex) -> Option<VnIndex> { - if let Value::Aggregate(enum_ty, variant, _) = *self.get(place) - && let AggregateTy::Def(enum_did, enum_args) = enum_ty - && let DefKind::Enum = self.tcx.def_kind(enum_did) + let enum_ty = self.ty(place); + if enum_ty.is_enum() + && let Value::Aggregate(variant, _) = *self.get(place) { - let enum_ty = self.tcx.type_of(enum_did).instantiate(self.tcx, enum_args); let discr = self.ecx.discriminant_for_variant(enum_ty, variant).discard_err()?; - return Some(self.insert_scalar(discr.to_scalar(), discr.layout.ty)); + return Some(self.insert_scalar(discr.layout.ty, discr.to_scalar())); } None @@ -915,12 +887,13 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { fn try_as_place_elem( &mut self, - proj: ProjectionElem<VnIndex, Ty<'tcx>>, + ty: Ty<'tcx>, + proj: ProjectionElem<VnIndex, ()>, loc: Location, ) -> Option<PlaceElem<'tcx>> { Some(match proj { ProjectionElem::Deref => ProjectionElem::Deref, - ProjectionElem::Field(idx, ty) => ProjectionElem::Field(idx, ty), + ProjectionElem::Field(idx, ()) => ProjectionElem::Field(idx, ty), ProjectionElem::Index(idx) => { let Some(local) = self.try_as_local(idx, loc) else { return None; @@ -935,9 +908,9 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { ProjectionElem::Subslice { from, to, from_end } } ProjectionElem::Downcast(symbol, idx) => ProjectionElem::Downcast(symbol, idx), - ProjectionElem::OpaqueCast(idx) => ProjectionElem::OpaqueCast(idx), - ProjectionElem::Subtype(idx) => ProjectionElem::Subtype(idx), - ProjectionElem::UnwrapUnsafeBinder(ty) => ProjectionElem::UnwrapUnsafeBinder(ty), + ProjectionElem::OpaqueCast(()) => ProjectionElem::OpaqueCast(ty), + ProjectionElem::Subtype(()) => ProjectionElem::Subtype(ty), + ProjectionElem::UnwrapUnsafeBinder(()) => ProjectionElem::UnwrapUnsafeBinder(ty), }) } @@ -983,8 +956,8 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { // Allow introducing places with non-constant offsets, as those are still better than // reconstructing an aggregate. - if let Some(place) = self.try_as_place(copy_from_local_value, location, true) - && rvalue.ty(self.local_decls, self.tcx) == place.ty(self.local_decls, self.tcx).ty + if self.ty(copy_from_local_value) == rvalue.ty(self.local_decls, self.tcx) + && let Some(place) = self.try_as_place(copy_from_local_value, location, true) { // Avoid creating `*a = copy (*b)`, as they might be aliases resulting in overlapping assignments. // FIXME: This also avoids any kind of projection, not just derefs. We can add allowed projections. @@ -1004,9 +977,11 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { rvalue: &mut Rvalue<'tcx>, location: Location, ) -> Option<VnIndex> { + let tcx = self.tcx; + let ty = rvalue.ty(self.local_decls, tcx); + let Rvalue::Aggregate(box ref kind, ref mut field_ops) = *rvalue else { bug!() }; - let tcx = self.tcx; if field_ops.is_empty() { let is_zst = match *kind { AggregateKind::Array(..) @@ -1021,87 +996,72 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { }; if is_zst { - let ty = rvalue.ty(self.local_decls, tcx); return Some(self.insert_constant(Const::zero_sized(ty))); } } - let (mut ty, variant_index) = match *kind { - AggregateKind::Array(..) => { - assert!(!field_ops.is_empty()); - (AggregateTy::Array, FIRST_VARIANT) - } - AggregateKind::Tuple => { + let fields: Vec<_> = field_ops + .iter_mut() + .map(|op| { + self.simplify_operand(op, location) + .unwrap_or_else(|| self.new_opaque(op.ty(self.local_decls, self.tcx))) + }) + .collect(); + + let variant_index = match *kind { + AggregateKind::Array(..) | AggregateKind::Tuple => { assert!(!field_ops.is_empty()); - (AggregateTy::Tuple, FIRST_VARIANT) - } - AggregateKind::Closure(did, args) - | AggregateKind::CoroutineClosure(did, args) - | AggregateKind::Coroutine(did, args) => (AggregateTy::Def(did, args), FIRST_VARIANT), - AggregateKind::Adt(did, variant_index, args, _, None) => { - (AggregateTy::Def(did, args), variant_index) + FIRST_VARIANT } + AggregateKind::Closure(..) + | AggregateKind::CoroutineClosure(..) + | AggregateKind::Coroutine(..) => FIRST_VARIANT, + AggregateKind::Adt(_, variant_index, _, _, None) => variant_index, // Do not track unions. AggregateKind::Adt(_, _, _, _, Some(_)) => return None, - AggregateKind::RawPtr(pointee_ty, mtbl) => { + AggregateKind::RawPtr(..) => { assert_eq!(field_ops.len(), 2); - let data_pointer_ty = field_ops[FieldIdx::ZERO].ty(self.local_decls, self.tcx); - let output_pointer_ty = Ty::new_ptr(self.tcx, pointee_ty, mtbl); - (AggregateTy::RawPtr { data_pointer_ty, output_pointer_ty }, FIRST_VARIANT) - } - }; - - let mut fields: Vec<_> = field_ops - .iter_mut() - .map(|op| self.simplify_operand(op, location).unwrap_or_else(|| self.new_opaque())) - .collect(); - - if let AggregateTy::RawPtr { data_pointer_ty, output_pointer_ty } = &mut ty { - let mut was_updated = false; + let [mut pointer, metadata] = fields.try_into().unwrap(); + + // Any thin pointer of matching mutability is fine as the data pointer. + let mut was_updated = false; + while let Value::Cast { kind: CastKind::PtrToPtr, value: cast_value } = + self.get(pointer) + && let ty::RawPtr(from_pointee_ty, from_mtbl) = self.ty(*cast_value).kind() + && let ty::RawPtr(_, output_mtbl) = ty.kind() + && from_mtbl == output_mtbl + && from_pointee_ty.is_sized(self.tcx, self.typing_env()) + { + pointer = *cast_value; + was_updated = true; + } - // Any thin pointer of matching mutability is fine as the data pointer. - while let Value::Cast { - kind: CastKind::PtrToPtr, - value: cast_value, - from: cast_from, - to: _, - } = self.get(fields[0]) - && let ty::RawPtr(from_pointee_ty, from_mtbl) = cast_from.kind() - && let ty::RawPtr(_, output_mtbl) = output_pointer_ty.kind() - && from_mtbl == output_mtbl - && from_pointee_ty.is_sized(self.tcx, self.typing_env()) - { - fields[0] = *cast_value; - *data_pointer_ty = *cast_from; - was_updated = true; - } + if was_updated && let Some(op) = self.try_as_operand(pointer, location) { + field_ops[FieldIdx::ZERO] = op; + } - if was_updated && let Some(op) = self.try_as_operand(fields[0], location) { - field_ops[FieldIdx::ZERO] = op; + return Some(self.insert(ty, Value::RawPtr { pointer, metadata })); } - } + }; - if let AggregateTy::Array = ty - && fields.len() > 4 - { + if ty.is_array() && fields.len() > 4 { let first = fields[0]; if fields.iter().all(|&v| v == first) { let len = ty::Const::from_target_usize(self.tcx, fields.len().try_into().unwrap()); if let Some(op) = self.try_as_operand(first, location) { *rvalue = Rvalue::Repeat(op, len); } - return Some(self.insert(Value::Repeat(first, len))); + return Some(self.insert(ty, Value::Repeat(first, len))); } } - if let AggregateTy::Def(_, _) = ty - && let Some(value) = - self.simplify_aggregate_to_copy(lhs, rvalue, location, &fields, variant_index) + if let Some(value) = + self.simplify_aggregate_to_copy(lhs, rvalue, location, &fields, variant_index) { return Some(value); } - Some(self.insert(Value::Aggregate(ty, variant_index, fields))) + Some(self.insert(ty, Value::Aggregate(variant_index, fields))) } #[instrument(level = "trace", skip(self), ret)] @@ -1112,6 +1072,8 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { location: Location, ) -> Option<VnIndex> { let mut arg_index = self.simplify_operand(arg_op, location)?; + let arg_ty = self.ty(arg_index); + let ret_ty = op.ty(self.tcx, arg_ty); // PtrMetadata doesn't care about *const vs *mut vs & vs &mut, // so start by removing those distinctions so we can update the `Operand` @@ -1127,8 +1089,8 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { // we can't always know exactly what the metadata are. // To allow things like `*mut (?A, ?T)` <-> `*mut (?B, ?T)`, // it's fine to get a projection as the type. - Value::Cast { kind: CastKind::PtrToPtr, value: inner, from, to } - if self.pointers_have_same_metadata(*from, *to) => + Value::Cast { kind: CastKind::PtrToPtr, value: inner } + if self.pointers_have_same_metadata(self.ty(*inner), arg_ty) => { arg_index = *inner; was_updated = true; @@ -1165,26 +1127,22 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { (UnOp::Not, Value::BinaryOp(BinOp::Ne, lhs, rhs)) => { Value::BinaryOp(BinOp::Eq, *lhs, *rhs) } - (UnOp::PtrMetadata, Value::Aggregate(AggregateTy::RawPtr { .. }, _, fields)) => { - return Some(fields[1]); - } + (UnOp::PtrMetadata, Value::RawPtr { metadata, .. }) => return Some(*metadata), // We have an unsizing cast, which assigns the length to wide pointer metadata. ( UnOp::PtrMetadata, Value::Cast { kind: CastKind::PointerCoercion(ty::adjustment::PointerCoercion::Unsize, _), - from, - to, - .. + value: inner, }, - ) if let ty::Slice(..) = to.builtin_deref(true).unwrap().kind() - && let ty::Array(_, len) = from.builtin_deref(true).unwrap().kind() => + ) if let ty::Slice(..) = arg_ty.builtin_deref(true).unwrap().kind() + && let ty::Array(_, len) = self.ty(*inner).builtin_deref(true).unwrap().kind() => { return Some(self.insert_constant(Const::Ty(self.tcx.types.usize, *len))); } _ => Value::UnaryOp(op, arg_index), }; - Some(self.insert(value)) + Some(self.insert(ret_ty, value)) } #[instrument(level = "trace", skip(self), ret)] @@ -1197,25 +1155,23 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { ) -> Option<VnIndex> { let lhs = self.simplify_operand(lhs_operand, location); let rhs = self.simplify_operand(rhs_operand, location); + // Only short-circuit options after we called `simplify_operand` // on both operands for side effect. let mut lhs = lhs?; let mut rhs = rhs?; - let lhs_ty = lhs_operand.ty(self.local_decls, self.tcx); + let lhs_ty = self.ty(lhs); // If we're comparing pointers, remove `PtrToPtr` casts if the from // types of both casts and the metadata all match. if let BinOp::Eq | BinOp::Ne | BinOp::Lt | BinOp::Le | BinOp::Gt | BinOp::Ge = op && lhs_ty.is_any_ptr() - && let Value::Cast { - kind: CastKind::PtrToPtr, value: lhs_value, from: lhs_from, .. - } = self.get(lhs) - && let Value::Cast { - kind: CastKind::PtrToPtr, value: rhs_value, from: rhs_from, .. - } = self.get(rhs) - && lhs_from == rhs_from - && self.pointers_have_same_metadata(*lhs_from, lhs_ty) + && let Value::Cast { kind: CastKind::PtrToPtr, value: lhs_value } = self.get(lhs) + && let Value::Cast { kind: CastKind::PtrToPtr, value: rhs_value } = self.get(rhs) + && let lhs_from = self.ty(*lhs_value) + && lhs_from == self.ty(*rhs_value) + && self.pointers_have_same_metadata(lhs_from, lhs_ty) { lhs = *lhs_value; rhs = *rhs_value; @@ -1230,8 +1186,9 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { if let Some(value) = self.simplify_binary_inner(op, lhs_ty, lhs, rhs) { return Some(value); } + let ty = op.ty(self.tcx, lhs_ty, self.ty(rhs)); let value = Value::BinaryOp(op, lhs, rhs); - Some(self.insert(value)) + Some(self.insert(ty, value)) } fn simplify_binary_inner( @@ -1323,19 +1280,19 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { | BinOp::Shr, Left(0), _, - ) => self.insert_scalar(Scalar::from_uint(0u128, layout.size), lhs_ty), + ) => self.insert_scalar(lhs_ty, Scalar::from_uint(0u128, layout.size)), // Attempt to simplify `x | ALL_ONES` to `ALL_ONES`. (BinOp::BitOr, _, Left(ones)) | (BinOp::BitOr, Left(ones), _) if ones == layout.size.truncate(u128::MAX) || (layout.ty.is_bool() && ones == 1) => { - self.insert_scalar(Scalar::from_uint(ones, layout.size), lhs_ty) + self.insert_scalar(lhs_ty, Scalar::from_uint(ones, layout.size)) } // Sub/Xor with itself. (BinOp::Sub | BinOp::SubWithOverflow | BinOp::SubUnchecked | BinOp::BitXor, a, b) if a == b => { - self.insert_scalar(Scalar::from_uint(0u128, layout.size), lhs_ty) + self.insert_scalar(lhs_ty, Scalar::from_uint(0u128, layout.size)) } // Comparison: // - if both operands can be computed as bits, just compare the bits; @@ -1349,8 +1306,9 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { }; if op.is_overflowing() { + let ty = Ty::new_tup(self.tcx, &[self.ty(result), self.tcx.types.bool]); let false_val = self.insert_bool(false); - Some(self.insert_tuple(vec![result, false_val])) + Some(self.insert_tuple(ty, vec![result, false_val])) } else { Some(result) } @@ -1366,9 +1324,9 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { use CastKind::*; use rustc_middle::ty::adjustment::PointerCoercion::*; - let mut from = initial_operand.ty(self.local_decls, self.tcx); let mut kind = *initial_kind; let mut value = self.simplify_operand(initial_operand, location)?; + let mut from = self.ty(value); if from == to { return Some(value); } @@ -1376,7 +1334,7 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { if let CastKind::PointerCoercion(ReifyFnPointer | ClosureFnPointer(_), _) = kind { // Each reification of a generic fn may get a different pointer. // Do not try to merge them. - return Some(self.new_opaque()); + return Some(self.new_opaque(to)); } let mut was_ever_updated = false; @@ -1399,23 +1357,22 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { // If a cast just casts away the metadata again, then we can get it by // casting the original thin pointer passed to `from_raw_parts` if let PtrToPtr = kind - && let Value::Aggregate(AggregateTy::RawPtr { data_pointer_ty, .. }, _, fields) = - self.get(value) + && let Value::RawPtr { pointer, .. } = self.get(value) && let ty::RawPtr(to_pointee, _) = to.kind() && to_pointee.is_sized(self.tcx, self.typing_env()) { - from = *data_pointer_ty; - value = fields[0]; + from = self.ty(*pointer); + value = *pointer; was_updated_this_iteration = true; - if *data_pointer_ty == to { - return Some(fields[0]); + if from == to { + return Some(*pointer); } } // Aggregate-then-Transmute can just transmute the original field value, // so long as the bytes of a value from only from a single field. if let Transmute = kind - && let Value::Aggregate(_aggregate_ty, variant_idx, field_values) = self.get(value) + && let Value::Aggregate(variant_idx, field_values) = self.get(value) && let Some((field_idx, field_ty)) = self.value_is_all_in_one_field(from, *variant_idx) { @@ -1428,13 +1385,8 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { } // Various cast-then-cast cases can be simplified. - if let Value::Cast { - kind: inner_kind, - value: inner_value, - from: inner_from, - to: inner_to, - } = *self.get(value) - { + if let Value::Cast { kind: inner_kind, value: inner_value } = *self.get(value) { + let inner_from = self.ty(inner_value); let new_kind = match (inner_kind, kind) { // Even if there's a narrowing cast in here that's fine, because // things like `*mut [i32] -> *mut i32 -> *const i32` and @@ -1443,9 +1395,7 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { // PtrToPtr-then-Transmute is fine so long as the pointer cast is identity: // `*const T -> *mut T -> NonNull<T>` is fine, but we need to check for narrowing // to skip things like `*const [i32] -> *const i32 -> NonNull<T>`. - (PtrToPtr, Transmute) - if self.pointers_have_same_metadata(inner_from, inner_to) => - { + (PtrToPtr, Transmute) if self.pointers_have_same_metadata(inner_from, from) => { Some(Transmute) } // Similarly, for Transmute-then-PtrToPtr. Note that we need to check different @@ -1456,7 +1406,7 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { // If would be legal to always do this, but we don't want to hide information // from the backend that it'd otherwise be able to use for optimizations. (Transmute, Transmute) - if !self.type_may_have_niche_of_interest_to_backend(inner_to) => + if !self.type_may_have_niche_of_interest_to_backend(from) => { Some(Transmute) } @@ -1485,7 +1435,7 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { *initial_kind = kind; } - Some(self.insert(Value::Cast { kind, value, from, to })) + Some(self.insert(to, Value::Cast { kind, value })) } fn simplify_len(&mut self, place: &mut Place<'tcx>, location: Location) -> Option<VnIndex> { @@ -1507,18 +1457,18 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { } // We have an unsizing cast, which assigns the length to wide pointer metadata. - if let Value::Cast { kind, from, to, .. } = self.get(inner) + if let Value::Cast { kind, value: from } = self.get(inner) && let CastKind::PointerCoercion(ty::adjustment::PointerCoercion::Unsize, _) = kind - && let Some(from) = from.builtin_deref(true) + && let Some(from) = self.ty(*from).builtin_deref(true) && let ty::Array(_, len) = from.kind() - && let Some(to) = to.builtin_deref(true) + && let Some(to) = self.ty(inner).builtin_deref(true) && let ty::Slice(..) = to.kind() { return Some(self.insert_constant(Const::Ty(self.tcx.types.usize, *len))); } // Fallback: a symbolic `Len`. - Some(self.insert(Value::Len(inner))) + Some(self.insert(self.tcx.types.usize, Value::Len(inner))) } fn pointers_have_same_metadata(&self, left_ptr_ty: Ty<'tcx>, right_ptr_ty: Ty<'tcx>) -> bool { @@ -1727,7 +1677,7 @@ impl<'tcx> VnState<'_, 'tcx> { return Some(place); } else if let Value::Projection(pointer, proj) = *self.get(index) && (allow_complex_projection || proj.is_stable_offset()) - && let Some(proj) = self.try_as_place_elem(proj, loc) + && let Some(proj) = self.try_as_place_elem(self.ty(index), proj, loc) { projection.push(proj); index = pointer; @@ -1755,7 +1705,7 @@ impl<'tcx> MutVisitor<'tcx> for VnState<'_, 'tcx> { fn visit_place(&mut self, place: &mut Place<'tcx>, context: PlaceContext, location: Location) { self.simplify_place_projection(place, location); - if context.is_mutating_use() && !place.projection.is_empty() { + if context.is_mutating_use() && place.is_indirect() { // Non-local mutation maybe invalidate deref. self.invalidate_derefs(); } @@ -1767,36 +1717,42 @@ impl<'tcx> MutVisitor<'tcx> for VnState<'_, 'tcx> { self.super_operand(operand, location); } - fn visit_statement(&mut self, stmt: &mut Statement<'tcx>, location: Location) { - if let StatementKind::Assign(box (ref mut lhs, ref mut rvalue)) = stmt.kind { - self.simplify_place_projection(lhs, location); - - let value = self.simplify_rvalue(lhs, rvalue, location); - let value = if let Some(local) = lhs.as_local() - && self.ssa.is_ssa(local) - // FIXME(#112651) `rvalue` may have a subtype to `local`. We can only mark - // `local` as reusable if we have an exact type match. - && self.local_decls[local].ty == rvalue.ty(self.local_decls, self.tcx) + fn visit_assign( + &mut self, + lhs: &mut Place<'tcx>, + rvalue: &mut Rvalue<'tcx>, + location: Location, + ) { + self.simplify_place_projection(lhs, location); + + let value = self.simplify_rvalue(lhs, rvalue, location); + if let Some(value) = value { + if let Some(const_) = self.try_as_constant(value) { + *rvalue = Rvalue::Use(Operand::Constant(Box::new(const_))); + } else if let Some(place) = self.try_as_place(value, location, false) + && *rvalue != Rvalue::Use(Operand::Move(place)) + && *rvalue != Rvalue::Use(Operand::Copy(place)) { - let value = value.unwrap_or_else(|| self.new_opaque()); - self.assign(local, value); - Some(value) - } else { - value - }; - if let Some(value) = value { - if let Some(const_) = self.try_as_constant(value) { - *rvalue = Rvalue::Use(Operand::Constant(Box::new(const_))); - } else if let Some(place) = self.try_as_place(value, location, false) - && *rvalue != Rvalue::Use(Operand::Move(place)) - && *rvalue != Rvalue::Use(Operand::Copy(place)) - { - *rvalue = Rvalue::Use(Operand::Copy(place)); - self.reused_locals.insert(place.local); - } + *rvalue = Rvalue::Use(Operand::Copy(place)); + self.reused_locals.insert(place.local); } } - self.super_statement(stmt, location); + + if lhs.is_indirect() { + // Non-local mutation maybe invalidate deref. + self.invalidate_derefs(); + } + + if let Some(local) = lhs.as_local() + && self.ssa.is_ssa(local) + && let rvalue_ty = rvalue.ty(self.local_decls, self.tcx) + // FIXME(#112651) `rvalue` may have a subtype to `local`. We can only mark + // `local` as reusable if we have an exact type match. + && self.local_decls[local].ty == rvalue_ty + { + let value = value.unwrap_or_else(|| self.new_opaque(rvalue_ty)); + self.assign(local, value); + } } fn visit_terminator(&mut self, terminator: &mut Terminator<'tcx>, location: Location) { @@ -1804,7 +1760,8 @@ impl<'tcx> MutVisitor<'tcx> for VnState<'_, 'tcx> { if let Some(local) = destination.as_local() && self.ssa.is_ssa(local) { - let opaque = self.new_opaque(); + let ty = self.local_decls[local].ty; + let opaque = self.new_opaque(ty); self.assign(local, opaque); } } diff --git a/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/mod.rs b/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/mod.rs index b42587618b5..ce9b794d40d 100644 --- a/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/mod.rs +++ b/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/mod.rs @@ -22,6 +22,7 @@ use crate::delegate::SolverDelegate; use crate::placeholder::BoundVarReplacer; use crate::solve::inspect::{self, ProofTreeBuilder}; use crate::solve::search_graph::SearchGraph; +use crate::solve::ty::may_use_unstable_feature; use crate::solve::{ CanonicalInput, Certainty, FIXPOINT_STEP_LIMIT, Goal, GoalEvaluation, GoalEvaluationKind, GoalSource, GoalStalledOn, HasChanged, NestedNormalizationGoals, NoSolution, QueryInput, @@ -550,6 +551,9 @@ where ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(ct, ty)) => { self.compute_const_arg_has_type_goal(Goal { param_env, predicate: (ct, ty) }) } + ty::PredicateKind::Clause(ty::ClauseKind::UnstableFeature(symbol)) => { + self.compute_unstable_feature_goal(param_env, symbol) + } ty::PredicateKind::Subtype(predicate) => { self.compute_subtype_goal(Goal { param_env, predicate }) } @@ -1177,6 +1181,14 @@ where ) -> T { BoundVarReplacer::replace_bound_vars(&**self.delegate, universes, t).0 } + + pub(super) fn may_use_unstable_feature( + &self, + param_env: I::ParamEnv, + symbol: I::Symbol, + ) -> bool { + may_use_unstable_feature(&**self.delegate, param_env, symbol) + } } /// Eagerly replace aliases with inference variables, emitting `AliasRelate` diff --git a/compiler/rustc_next_trait_solver/src/solve/mod.rs b/compiler/rustc_next_trait_solver/src/solve/mod.rs index e68ea22c7a2..5ea3f0d1061 100644 --- a/compiler/rustc_next_trait_solver/src/solve/mod.rs +++ b/compiler/rustc_next_trait_solver/src/solve/mod.rs @@ -148,6 +148,20 @@ where } } + fn compute_unstable_feature_goal( + &mut self, + param_env: <I as Interner>::ParamEnv, + symbol: <I as Interner>::Symbol, + ) -> QueryResult<I> { + if self.may_use_unstable_feature(param_env, symbol) { + self.evaluate_added_goals_and_make_canonical_response(Certainty::Yes) + } else { + self.evaluate_added_goals_and_make_canonical_response(Certainty::Maybe( + MaybeCause::Ambiguity, + )) + } + } + #[instrument(level = "trace", skip(self))] fn compute_const_evaluatable_goal( &mut self, diff --git a/compiler/rustc_parse/Cargo.toml b/compiler/rustc_parse/Cargo.toml index c4a0ae2ce9d..a92012f8329 100644 --- a/compiler/rustc_parse/Cargo.toml +++ b/compiler/rustc_parse/Cargo.toml @@ -6,7 +6,7 @@ edition = "2024" [dependencies] # tidy-alphabetical-start bitflags = "2.4.1" -rustc-literal-escaper = "0.0.4" +rustc-literal-escaper = "0.0.5" rustc_ast = { path = "../rustc_ast" } rustc_ast_pretty = { path = "../rustc_ast_pretty" } rustc_data_structures = { path = "../rustc_data_structures" } diff --git a/compiler/rustc_parse/messages.ftl b/compiler/rustc_parse/messages.ftl index af9f8735549..859118a4ade 100644 --- a/compiler/rustc_parse/messages.ftl +++ b/compiler/rustc_parse/messages.ftl @@ -855,6 +855,7 @@ parse_trailing_vert_not_allowed = a trailing `|` is not allowed in an or-pattern .suggestion = remove the `{$token}` parse_trait_alias_cannot_be_auto = trait aliases cannot be `auto` +parse_trait_alias_cannot_be_const = trait aliases cannot be `const` parse_trait_alias_cannot_be_unsafe = trait aliases cannot be `unsafe` parse_transpose_dyn_or_impl = `for<...>` expected after `{$kw}`, not before diff --git a/compiler/rustc_parse/src/errors.rs b/compiler/rustc_parse/src/errors.rs index 7f1b0991f0c..4aaaba01fae 100644 --- a/compiler/rustc_parse/src/errors.rs +++ b/compiler/rustc_parse/src/errors.rs @@ -1962,6 +1962,14 @@ pub(crate) struct TraitAliasCannotBeAuto { } #[derive(Diagnostic)] +#[diag(parse_trait_alias_cannot_be_const)] +pub(crate) struct TraitAliasCannotBeConst { + #[primary_span] + #[label(parse_trait_alias_cannot_be_const)] + pub span: Span, +} + +#[derive(Diagnostic)] #[diag(parse_trait_alias_cannot_be_unsafe)] pub(crate) struct TraitAliasCannotBeUnsafe { #[primary_span] diff --git a/compiler/rustc_parse/src/parser/item.rs b/compiler/rustc_parse/src/parser/item.rs index d6cc98d505c..b767b0fcf99 100644 --- a/compiler/rustc_parse/src/parser/item.rs +++ b/compiler/rustc_parse/src/parser/item.rs @@ -244,6 +244,9 @@ impl<'a> Parser<'a> { self.bump(); // `static` let mutability = self.parse_mutability(); self.parse_static_item(safety, mutability)? + } else if self.check_keyword(exp!(Trait)) || self.check_trait_front_matter() { + // TRAIT ITEM + self.parse_item_trait(attrs, lo)? } else if let Const::Yes(const_span) = self.parse_constness(Case::Sensitive) { // CONST ITEM if self.token.is_keyword(kw::Impl) { @@ -262,9 +265,6 @@ impl<'a> Parser<'a> { define_opaque: None, })) } - } else if self.check_keyword(exp!(Trait)) || self.check_auto_or_unsafe_trait_item() { - // TRAIT ITEM - self.parse_item_trait(attrs, lo)? } else if self.check_keyword(exp!(Impl)) || self.check_keyword(exp!(Unsafe)) && self.is_keyword_ahead(1, &[kw::Impl]) { @@ -373,7 +373,7 @@ impl<'a> Parser<'a> { pub(super) fn is_path_start_item(&mut self) -> bool { self.is_kw_followed_by_ident(kw::Union) // no: `union::b`, yes: `union U { .. }` || self.is_reuse_path_item() - || self.check_auto_or_unsafe_trait_item() // no: `auto::b`, yes: `auto trait X { .. }` + || self.check_trait_front_matter() // no: `auto::b`, yes: `auto trait X { .. }` || self.is_async_fn() // no(2015): `async::b`, yes: `async fn` || matches!(self.is_macro_rules_item(), IsMacroRulesItem::Yes{..}) // no: `macro_rules::b`, yes: `macro_rules! mac` } @@ -872,16 +872,19 @@ impl<'a> Parser<'a> { } } - /// Is this an `(unsafe auto? | auto) trait` item? - fn check_auto_or_unsafe_trait_item(&mut self) -> bool { + /// Is this an `(const unsafe? auto?| unsafe auto? | auto) trait` item? + fn check_trait_front_matter(&mut self) -> bool { // auto trait self.check_keyword(exp!(Auto)) && self.is_keyword_ahead(1, &[kw::Trait]) // unsafe auto trait || self.check_keyword(exp!(Unsafe)) && self.is_keyword_ahead(1, &[kw::Trait, kw::Auto]) + || self.check_keyword(exp!(Const)) && ((self.is_keyword_ahead(1, &[kw::Trait]) || self.is_keyword_ahead(1, &[kw::Auto]) && self.is_keyword_ahead(2, &[kw::Trait])) + || self.is_keyword_ahead(1, &[kw::Unsafe]) && self.is_keyword_ahead(2, &[kw::Trait, kw::Auto])) } /// Parses `unsafe? auto? trait Foo { ... }` or `trait Foo = Bar;`. fn parse_item_trait(&mut self, attrs: &mut AttrVec, lo: Span) -> PResult<'a, ItemKind> { + let constness = self.parse_constness(Case::Sensitive); let safety = self.parse_safety(Case::Sensitive); // Parse optional `auto` prefix. let is_auto = if self.eat_keyword(exp!(Auto)) { @@ -913,6 +916,9 @@ impl<'a> Parser<'a> { self.expect_semi()?; let whole_span = lo.to(self.prev_token.span); + if let Const::Yes(_) = constness { + self.dcx().emit_err(errors::TraitAliasCannotBeConst { span: whole_span }); + } if is_auto == IsAuto::Yes { self.dcx().emit_err(errors::TraitAliasCannotBeAuto { span: whole_span }); } @@ -927,7 +933,15 @@ impl<'a> Parser<'a> { // It's a normal trait. generics.where_clause = self.parse_where_clause()?; let items = self.parse_item_list(attrs, |p| p.parse_trait_item(ForceCollect::No))?; - Ok(ItemKind::Trait(Box::new(Trait { is_auto, safety, ident, generics, bounds, items }))) + Ok(ItemKind::Trait(Box::new(Trait { + constness, + is_auto, + safety, + ident, + generics, + bounds, + items, + }))) } } diff --git a/compiler/rustc_parse/src/validate_attr.rs b/compiler/rustc_parse/src/validate_attr.rs index 783d79d978a..a476f0db37e 100644 --- a/compiler/rustc_parse/src/validate_attr.rs +++ b/compiler/rustc_parse/src/validate_attr.rs @@ -318,6 +318,7 @@ pub fn check_builtin_meta_item( | sym::rustc_layout_scalar_valid_range_end | sym::no_implicit_prelude | sym::automatically_derived + | sym::coverage ) { return; } diff --git a/compiler/rustc_parse_format/Cargo.toml b/compiler/rustc_parse_format/Cargo.toml index 0666ae29409..d178fcda1fb 100644 --- a/compiler/rustc_parse_format/Cargo.toml +++ b/compiler/rustc_parse_format/Cargo.toml @@ -5,7 +5,7 @@ edition = "2024" [dependencies] # tidy-alphabetical-start -rustc-literal-escaper = "0.0.4" +rustc-literal-escaper = "0.0.5" rustc_lexer = { path = "../rustc_lexer" } # tidy-alphabetical-end diff --git a/compiler/rustc_passes/messages.ftl b/compiler/rustc_passes/messages.ftl index 3418d997b83..d1b856ca415 100644 --- a/compiler/rustc_passes/messages.ftl +++ b/compiler/rustc_passes/messages.ftl @@ -667,6 +667,10 @@ passes_rustc_std_internal_symbol = attribute should be applied to functions or statics .label = not a function or static +passes_rustc_unstable_feature_bound = + attribute should be applied to `impl` or free function outside of any `impl` or trait + .label = not an `impl` or free function + passes_should_be_applied_to_fn = attribute should be applied to a function definition .label = {$on_crate -> @@ -780,7 +784,7 @@ passes_unused_capture_maybe_capture_ref = value captured by `{$name}` is never r .help = did you mean to capture by reference instead? passes_unused_default_method_body_const_note = - `default_method_body_is_const` has been replaced with `#[const_trait]` on traits + `default_method_body_is_const` has been replaced with `const` on traits passes_unused_duplicate = unused attribute diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs index 2009ddc1e2d..2766b14bb8d 100644 --- a/compiler/rustc_passes/src/check_attr.rs +++ b/compiler/rustc_passes/src/check_attr.rs @@ -10,7 +10,7 @@ use std::collections::hash_map::Entry; use std::slice; use rustc_abi::{Align, ExternAbi, Size}; -use rustc_ast::{AttrStyle, LitKind, MetaItemInner, MetaItemKind, ast}; +use rustc_ast::{AttrStyle, LitKind, MetaItemInner, MetaItemKind, ast, join_path_syms}; use rustc_attr_data_structures::{AttributeKind, InlineAttr, ReprAttr, find_attr}; use rustc_attr_parsing::{AttributeParser, Late}; use rustc_data_structures::fx::FxHashMap; @@ -247,6 +247,9 @@ impl<'tcx> CheckAttrVisitor<'tcx> { &Attribute::Parsed(AttributeKind::FfiPure(attr_span)) => { self.check_ffi_pure(attr_span, attrs, target) } + Attribute::Parsed(AttributeKind::UnstableFeatureBound(syms)) => { + self.check_unstable_feature_bound(syms.first().unwrap().1, span, target) + } Attribute::Parsed( AttributeKind::BodyStability { .. } | AttributeKind::ConstStabilityIndirect @@ -285,6 +288,9 @@ impl<'tcx> CheckAttrVisitor<'tcx> { &Attribute::Parsed(AttributeKind::StdInternalSymbol(attr_span)) => { self.check_rustc_std_internal_symbol(attr_span, span, target) } + &Attribute::Parsed(AttributeKind::Coverage(attr_span, _)) => { + self.check_coverage(attr_span, span, target) + } Attribute::Unparsed(attr_item) => { style = Some(attr_item.style); match attr.path().as_slice() { @@ -294,7 +300,6 @@ impl<'tcx> CheckAttrVisitor<'tcx> { [sym::diagnostic, sym::on_unimplemented, ..] => { self.check_diagnostic_on_unimplemented(attr.span(), hir_id, target) } - [sym::coverage, ..] => self.check_coverage(attr, span, target), [sym::no_sanitize, ..] => { self.check_no_sanitize(attr, span, target) } @@ -585,7 +590,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> { /// Checks that `#[coverage(..)]` is applied to a function/closure/method, /// or to an impl block or module. - fn check_coverage(&self, attr: &Attribute, target_span: Span, target: Target) { + fn check_coverage(&self, attr_span: Span, target_span: Span, target: Target) { let mut not_fn_impl_mod = None; let mut no_body = None; @@ -608,7 +613,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> { } self.dcx().emit_err(errors::CoverageAttributeNotAllowed { - attr_span: attr.span(), + attr_span, not_fn_impl_mod, no_body, help: (), @@ -678,9 +683,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> { allowed_target: Target, ) { if target != allowed_target { - let path = attr.path(); - let path: Vec<_> = path.iter().map(|s| s.as_str()).collect(); - let attr_name = path.join("::"); + let attr_name = join_path_syms(attr.path()); self.tcx.emit_node_span_lint( UNUSED_ATTRIBUTES, hir_id, @@ -1159,7 +1162,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> { match item.kind { ItemKind::Enum(_, generics, _) | ItemKind::Struct(_, generics, _) if generics.params.len() != 0 => {} - ItemKind::Trait(_, _, _, generics, _, items) + ItemKind::Trait(_, _, _, _, generics, _, items) if generics.params.len() != 0 || items.iter().any(|item| { matches!(self.tcx.def_kind(item.owner_id), DefKind::AssocTy) @@ -2267,6 +2270,47 @@ impl<'tcx> CheckAttrVisitor<'tcx> { } } + fn check_unstable_feature_bound(&self, attr_span: Span, span: Span, target: Target) { + match target { + // FIXME(staged_api): There's no reason we can't support more targets here. We're just + // being conservative to begin with. + Target::Fn | Target::Impl => {} + Target::ExternCrate + | Target::Use + | Target::Static + | Target::Const + | Target::Closure + | Target::Mod + | Target::ForeignMod + | Target::GlobalAsm + | Target::TyAlias + | Target::Enum + | Target::Variant + | Target::Struct + | Target::Field + | Target::Union + | Target::Trait + | Target::TraitAlias + | Target::Expression + | Target::Statement + | Target::Arm + | Target::AssocConst + | Target::Method(_) + | Target::AssocTy + | Target::ForeignFn + | Target::ForeignStatic + | Target::ForeignTy + | Target::GenericParam(_) + | Target::MacroDef + | Target::Param + | Target::PatField + | Target::ExprField + | Target::WherePredicate => { + self.tcx.dcx().emit_err(errors::RustcUnstableFeatureBound { attr_span, span }); + } + } + } + fn check_rustc_std_internal_symbol(&self, attr_span: Span, span: Span, target: Target) { match target { Target::Fn | Target::Static | Target::ForeignFn | Target::ForeignStatic => {} diff --git a/compiler/rustc_passes/src/errors.rs b/compiler/rustc_passes/src/errors.rs index 093a2b38804..37330c0ed6e 100644 --- a/compiler/rustc_passes/src/errors.rs +++ b/compiler/rustc_passes/src/errors.rs @@ -687,6 +687,15 @@ pub(crate) struct RustcAllowConstFnUnstable { } #[derive(Diagnostic)] +#[diag(passes_rustc_unstable_feature_bound)] +pub(crate) struct RustcUnstableFeatureBound { + #[primary_span] + pub attr_span: Span, + #[label] + pub span: Span, +} + +#[derive(Diagnostic)] #[diag(passes_rustc_std_internal_symbol)] pub(crate) struct RustcStdInternalSymbol { #[primary_span] diff --git a/compiler/rustc_passes/src/stability.rs b/compiler/rustc_passes/src/stability.rs index adda94fda8f..e5530d52686 100644 --- a/compiler/rustc_passes/src/stability.rs +++ b/compiler/rustc_passes/src/stability.rs @@ -802,12 +802,28 @@ impl<'tcx> Visitor<'tcx> for Checker<'tcx> { // FIXME(jdonszelmann): make it impossible to miss the or_else in the typesystem let const_stab = attrs::find_attr!(attrs, AttributeKind::ConstStability{stability, ..} => *stability); + let unstable_feature_stab = + find_attr!(attrs, AttributeKind::UnstableFeatureBound(i) => i) + .map(|i| i.as_slice()) + .unwrap_or_default(); + // If this impl block has an #[unstable] attribute, give an // error if all involved types and traits are stable, because // it will have no effect. // See: https://github.com/rust-lang/rust/issues/55436 + // + // The exception is when there are both #[unstable_feature_bound(..)] and + // #![unstable(feature = "..", issue = "..")] that have the same symbol because + // that can effectively mark an impl as unstable. + // + // For example: + // ``` + // #[unstable_feature_bound(feat_foo)] + // #[unstable(feature = "feat_foo", issue = "none")] + // impl Foo for Bar {} + // ``` if let Some(( - Stability { level: attrs::StabilityLevel::Unstable { .. }, .. }, + Stability { level: attrs::StabilityLevel::Unstable { .. }, feature }, span, )) = stab { @@ -815,9 +831,21 @@ impl<'tcx> Visitor<'tcx> for Checker<'tcx> { c.visit_ty_unambig(self_ty); c.visit_trait_ref(t); + // Skip the lint if the impl is marked as unstable using + // #[unstable_feature_bound(..)] + let mut unstable_feature_bound_in_effect = false; + for (unstable_bound_feat_name, _) in unstable_feature_stab { + if *unstable_bound_feat_name == feature { + unstable_feature_bound_in_effect = true; + } + } + // do not lint when the trait isn't resolved, since resolution error should // be fixed first - if t.path.res != Res::Err && c.fully_stable { + if t.path.res != Res::Err + && c.fully_stable + && !unstable_feature_bound_in_effect + { self.tcx.emit_node_span_lint( INEFFECTIVE_UNSTABLE_TRAIT_IMPL, item.hir_id(), diff --git a/compiler/rustc_privacy/src/lib.rs b/compiler/rustc_privacy/src/lib.rs index ab2433234aa..80c13e44d7d 100644 --- a/compiler/rustc_privacy/src/lib.rs +++ b/compiler/rustc_privacy/src/lib.rs @@ -156,6 +156,7 @@ where } ty::ClauseKind::ConstEvaluatable(ct) => ct.visit_with(self), ty::ClauseKind::WellFormed(term) => term.visit_with(self), + ty::ClauseKind::UnstableFeature(_) => V::Result::output(), } } diff --git a/compiler/rustc_proc_macro/Cargo.toml b/compiler/rustc_proc_macro/Cargo.toml index 748fa944e28..762acf9a1eb 100644 --- a/compiler/rustc_proc_macro/Cargo.toml +++ b/compiler/rustc_proc_macro/Cargo.toml @@ -15,7 +15,7 @@ test = false doctest = false [dependencies] -rustc-literal-escaper = "0.0.4" +rustc-literal-escaper = "0.0.5" [features] rustc-dep-of-std = [] diff --git a/compiler/rustc_public/src/unstable/convert/stable/ty.rs b/compiler/rustc_public/src/unstable/convert/stable/ty.rs index 75c29788787..6b226b8a24d 100644 --- a/compiler/rustc_public/src/unstable/convert/stable/ty.rs +++ b/compiler/rustc_public/src/unstable/convert/stable/ty.rs @@ -764,6 +764,9 @@ impl<'tcx> Stable<'tcx> for ty::ClauseKind<'tcx> { ClauseKind::HostEffect(..) => { todo!() } + ClauseKind::UnstableFeature(_) => { + todo!() + } } } } diff --git a/compiler/rustc_resolve/src/build_reduced_graph.rs b/compiler/rustc_resolve/src/build_reduced_graph.rs index 6979d89a8e7..e56aabfd414 100644 --- a/compiler/rustc_resolve/src/build_reduced_graph.rs +++ b/compiler/rustc_resolve/src/build_reduced_graph.rs @@ -20,9 +20,9 @@ use rustc_hir::def::{self, *}; use rustc_hir::def_id::{CRATE_DEF_ID, DefId, LocalDefId}; use rustc_index::bit_set::DenseBitSet; use rustc_metadata::creader::LoadedMacro; +use rustc_middle::bug; use rustc_middle::metadata::ModChild; -use rustc_middle::ty::Feed; -use rustc_middle::{bug, ty}; +use rustc_middle::ty::{Feed, Visibility}; use rustc_span::hygiene::{ExpnId, LocalExpnId, MacroKind}; use rustc_span::{Ident, Span, Symbol, kw, sym}; use tracing::debug; @@ -33,54 +33,42 @@ use crate::imports::{ImportData, ImportKind}; use crate::macros::{MacroRulesBinding, MacroRulesScope, MacroRulesScopeRef}; use crate::{ BindingKey, ExternPreludeEntry, Finalize, MacroData, Module, ModuleKind, ModuleOrUniformRoot, - NameBinding, NameBindingData, NameBindingKind, ParentScope, PathResult, ResolutionError, - Resolver, ResolverArenas, Segment, ToNameBinding, Used, VisResolutionError, errors, + NameBinding, ParentScope, PathResult, ResolutionError, Resolver, Segment, Used, + VisResolutionError, errors, }; type Res = def::Res<NodeId>; -impl<'ra, Id: Into<DefId>> ToNameBinding<'ra> - for (Module<'ra>, ty::Visibility<Id>, Span, LocalExpnId) -{ - fn to_name_binding(self, arenas: &'ra ResolverArenas<'ra>) -> NameBinding<'ra> { - arenas.alloc_name_binding(NameBindingData { - kind: NameBindingKind::Module(self.0), - ambiguity: None, - warn_ambiguity: false, - vis: self.1.to_def_id(), - span: self.2, - expansion: self.3, - }) - } -} - -impl<'ra, Id: Into<DefId>> ToNameBinding<'ra> for (Res, ty::Visibility<Id>, Span, LocalExpnId) { - fn to_name_binding(self, arenas: &'ra ResolverArenas<'ra>) -> NameBinding<'ra> { - arenas.alloc_name_binding(NameBindingData { - kind: NameBindingKind::Res(self.0), - ambiguity: None, - warn_ambiguity: false, - vis: self.1.to_def_id(), - span: self.2, - expansion: self.3, - }) - } -} - impl<'ra, 'tcx> Resolver<'ra, 'tcx> { /// Defines `name` in namespace `ns` of module `parent` to be `def` if it is not yet defined; /// otherwise, reports an error. - pub(crate) fn define<T>(&mut self, parent: Module<'ra>, ident: Ident, ns: Namespace, def: T) - where - T: ToNameBinding<'ra>, - { - let binding = def.to_name_binding(self.arenas); + pub(crate) fn define_binding( + &mut self, + parent: Module<'ra>, + ident: Ident, + ns: Namespace, + binding: NameBinding<'ra>, + ) { let key = self.new_disambiguated_key(ident, ns); if let Err(old_binding) = self.try_define(parent, key, binding, false) { self.report_conflict(parent, ident, ns, old_binding, binding); } } + fn define( + &mut self, + parent: Module<'ra>, + ident: Ident, + ns: Namespace, + res: Res, + vis: Visibility<impl Into<DefId>>, + span: Span, + expn_id: LocalExpnId, + ) { + let binding = self.arenas.new_res_binding(res, vis.to_def_id(), span, expn_id); + self.define_binding(parent, ident, ns, binding) + } + /// Walks up the tree of definitions starting at `def_id`, /// stopping at the first encountered module. /// Parent block modules for arbitrary def-ids are not recorded for the local crate, @@ -97,7 +85,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { /// Reachable macros with block module parents exist due to `#[macro_export] macro_rules!`, /// but they cannot use def-site hygiene, so the assumption holds /// (<https://github.com/rust-lang/rust/pull/77984#issuecomment-712445508>). - pub(crate) fn get_nearest_non_block_module(&mut self, mut def_id: DefId) -> Module<'ra> { + pub(crate) fn get_nearest_non_block_module(&self, mut def_id: DefId) -> Module<'ra> { loop { match self.get_module(def_id) { Some(module) => return module, @@ -106,44 +94,47 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } } - pub(crate) fn expect_module(&mut self, def_id: DefId) -> Module<'ra> { + pub(crate) fn expect_module(&self, def_id: DefId) -> Module<'ra> { self.get_module(def_id).expect("argument `DefId` is not a module") } /// If `def_id` refers to a module (in resolver's sense, i.e. a module item, crate root, enum, /// or trait), then this function returns that module's resolver representation, otherwise it /// returns `None`. - pub(crate) fn get_module(&mut self, def_id: DefId) -> Option<Module<'ra>> { - if let module @ Some(..) = self.module_map.get(&def_id) { - return module.copied(); - } + pub(crate) fn get_module(&self, def_id: DefId) -> Option<Module<'ra>> { + match def_id.as_local() { + Some(local_def_id) => self.local_module_map.get(&local_def_id).copied(), + None => { + if let module @ Some(..) = self.extern_module_map.borrow().get(&def_id) { + return module.copied(); + } - if !def_id.is_local() { - // Query `def_kind` is not used because query system overhead is too expensive here. - let def_kind = self.cstore().def_kind_untracked(def_id); - if let DefKind::Mod | DefKind::Enum | DefKind::Trait = def_kind { - let parent = self - .tcx - .opt_parent(def_id) - .map(|parent_id| self.get_nearest_non_block_module(parent_id)); - // Query `expn_that_defined` is not used because - // hashing spans in its result is expensive. - let expn_id = self.cstore().expn_that_defined_untracked(def_id, self.tcx.sess); - return Some(self.new_module( - parent, - ModuleKind::Def(def_kind, def_id, Some(self.tcx.item_name(def_id))), - expn_id, - self.def_span(def_id), - // FIXME: Account for `#[no_implicit_prelude]` attributes. - parent.is_some_and(|module| module.no_implicit_prelude), - )); + // Query `def_kind` is not used because query system overhead is too expensive here. + let def_kind = self.cstore().def_kind_untracked(def_id); + if def_kind.is_module_like() { + let parent = self + .tcx + .opt_parent(def_id) + .map(|parent_id| self.get_nearest_non_block_module(parent_id)); + // Query `expn_that_defined` is not used because + // hashing spans in its result is expensive. + let expn_id = self.cstore().expn_that_defined_untracked(def_id, self.tcx.sess); + return Some(self.new_extern_module( + parent, + ModuleKind::Def(def_kind, def_id, Some(self.tcx.item_name(def_id))), + expn_id, + self.def_span(def_id), + // FIXME: Account for `#[no_implicit_prelude]` attributes. + parent.is_some_and(|module| module.no_implicit_prelude), + )); + } + + None } } - - None } - pub(crate) fn expn_def_scope(&mut self, expn_id: ExpnId) -> Module<'ra> { + pub(crate) fn expn_def_scope(&self, expn_id: ExpnId) -> Module<'ra> { match expn_id.expn_data().macro_def_id { Some(def_id) => self.macro_def_scope(def_id), None => expn_id @@ -153,7 +144,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } } - pub(crate) fn macro_def_scope(&mut self, def_id: DefId) -> Module<'ra> { + pub(crate) fn macro_def_scope(&self, def_id: DefId) -> Module<'ra> { if let Some(id) = def_id.as_local() { self.local_macro_def_scopes[&id] } else { @@ -223,12 +214,11 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { let expansion = parent_scope.expansion; // Record primary definitions. match res { - Res::Def(DefKind::Mod | DefKind::Enum | DefKind::Trait, def_id) => { - let module = self.expect_module(def_id); - self.define(parent, ident, TypeNS, (module, vis, span, expansion)); - } Res::Def( - DefKind::Struct + DefKind::Mod + | DefKind::Enum + | DefKind::Trait + | DefKind::Struct | DefKind::Union | DefKind::Variant | DefKind::TyAlias @@ -239,7 +229,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { _, ) | Res::PrimTy(..) - | Res::ToolMod => self.define(parent, ident, TypeNS, (res, vis, span, expansion)), + | Res::ToolMod => self.define(parent, ident, TypeNS, res, vis, span, expansion), Res::Def( DefKind::Fn | DefKind::AssocFn @@ -248,9 +238,9 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { | DefKind::AssocConst | DefKind::Ctor(..), _, - ) => self.define(parent, ident, ValueNS, (res, vis, span, expansion)), + ) => self.define(parent, ident, ValueNS, res, vis, span, expansion), Res::Def(DefKind::Macro(..), _) | Res::NonMacroAttr(..) => { - self.define(parent, ident, MacroNS, (res, vis, span, expansion)) + self.define(parent, ident, MacroNS, res, vis, span, expansion) } Res::Def( DefKind::TyParam @@ -294,10 +284,10 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { Res::Def(self.r.tcx.def_kind(def_id), def_id) } - fn resolve_visibility(&mut self, vis: &ast::Visibility) -> ty::Visibility { + fn resolve_visibility(&mut self, vis: &ast::Visibility) -> Visibility { self.try_resolve_visibility(vis, true).unwrap_or_else(|err| { self.r.report_vis_error(err); - ty::Visibility::Public + Visibility::Public }) } @@ -305,10 +295,10 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { &mut self, vis: &'ast ast::Visibility, finalize: bool, - ) -> Result<ty::Visibility, VisResolutionError<'ast>> { + ) -> Result<Visibility, VisResolutionError<'ast>> { let parent_scope = &self.parent_scope; match vis.kind { - ast::VisibilityKind::Public => Ok(ty::Visibility::Public), + ast::VisibilityKind::Public => Ok(Visibility::Public), ast::VisibilityKind::Inherited => { Ok(match self.parent_scope.module.kind { // Any inherited visibility resolved directly inside an enum or trait @@ -318,7 +308,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { self.r.tcx.visibility(def_id).expect_local() } // Otherwise, the visibility is restricted to the nearest parent `mod` item. - _ => ty::Visibility::Restricted( + _ => Visibility::Restricted( self.parent_scope.module.nearest_parent_mod().expect_local(), ), }) @@ -366,9 +356,9 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { } if module.is_normal() { match res { - Res::Err => Ok(ty::Visibility::Public), + Res::Err => Ok(Visibility::Public), _ => { - let vis = ty::Visibility::Restricted(res.def_id()); + let vis = Visibility::Restricted(res.def_id()); if self.r.is_accessible_from(vis, parent_scope.module) { Ok(vis.expect_local()) } else { @@ -416,7 +406,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { self.r.field_visibility_spans.insert(def_id, field_vis); } - fn block_needs_anonymous_module(&mut self, block: &Block) -> bool { + fn block_needs_anonymous_module(&self, block: &Block) -> bool { // If any statements are items, we need to create an anonymous module block .stmts @@ -433,7 +423,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { item: &ast::Item, root_span: Span, root_id: NodeId, - vis: ty::Visibility, + vis: Visibility, ) { let current_module = self.parent_scope.module; let import = self.r.arenas.alloc_import(ImportData { @@ -481,7 +471,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { list_stem: bool, // The whole `use` item item: &Item, - vis: ty::Visibility, + vis: Visibility, root_span: Span, ) { debug!( @@ -690,7 +680,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { true, // The whole `use` item item, - ty::Visibility::Restricted( + Visibility::Restricted( self.parent_scope.module.nearest_parent_mod().expect_local(), ), root_span, @@ -706,7 +696,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { ident: Ident, feed: Feed<'tcx, LocalDefId>, adt_res: Res, - adt_vis: ty::Visibility, + adt_vis: Visibility, adt_span: Span, ) { let parent_scope = &self.parent_scope; @@ -714,7 +704,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { let expansion = parent_scope.expansion; // Define a name in the type namespace if it is not anonymous. - self.r.define(parent, ident, TypeNS, (adt_res, adt_vis, adt_span, expansion)); + self.r.define(parent, ident, TypeNS, adt_res, adt_vis, adt_span, expansion); self.r.feed_visibility(feed, adt_vis); let def_id = feed.key(); @@ -766,7 +756,12 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { } ItemKind::Mod(_, ident, ref mod_kind) => { - let module = self.r.new_module( + self.r.define(parent, ident, TypeNS, res, vis, sp, expansion); + + if let ast::ModKind::Loaded(_, _, _, Err(_)) = mod_kind { + self.r.mods_with_parse_errors.insert(def_id); + } + self.parent_scope.module = self.r.new_local_module( Some(parent), ModuleKind::Def(def_kind, def_id, Some(ident.name)), expansion.to_expn_id(), @@ -774,24 +769,16 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { parent.no_implicit_prelude || ast::attr::contains_name(&item.attrs, sym::no_implicit_prelude), ); - self.r.define(parent, ident, TypeNS, (module, vis, sp, expansion)); - - if let ast::ModKind::Loaded(_, _, _, Err(_)) = mod_kind { - self.r.mods_with_parse_errors.insert(def_id); - } - - // Descend into the module. - self.parent_scope.module = module; } // These items live in the value namespace. ItemKind::Const(box ConstItem { ident, .. }) | ItemKind::Delegation(box Delegation { ident, .. }) | ItemKind::Static(box StaticItem { ident, .. }) => { - self.r.define(parent, ident, ValueNS, (res, vis, sp, expansion)); + self.r.define(parent, ident, ValueNS, res, vis, sp, expansion); } ItemKind::Fn(box Fn { ident, .. }) => { - self.r.define(parent, ident, ValueNS, (res, vis, sp, expansion)); + self.r.define(parent, ident, ValueNS, res, vis, sp, expansion); // Functions introducing procedural macros reserve a slot // in the macro namespace as well (see #52225). @@ -800,19 +787,19 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { // These items live in the type namespace. ItemKind::TyAlias(box TyAlias { ident, .. }) | ItemKind::TraitAlias(ident, ..) => { - self.r.define(parent, ident, TypeNS, (res, vis, sp, expansion)); + self.r.define(parent, ident, TypeNS, res, vis, sp, expansion); } ItemKind::Enum(ident, _, _) | ItemKind::Trait(box ast::Trait { ident, .. }) => { - let module = self.r.new_module( + self.r.define(parent, ident, TypeNS, res, vis, sp, expansion); + + self.parent_scope.module = self.r.new_local_module( Some(parent), ModuleKind::Def(def_kind, def_id, Some(ident.name)), expansion.to_expn_id(), item.span, parent.no_implicit_prelude, ); - self.r.define(parent, ident, TypeNS, (module, vis, sp, expansion)); - self.parent_scope.module = module; } // These items live in both the type and value namespaces. @@ -834,7 +821,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { let mut ctor_vis = if vis.is_public() && ast::attr::contains_name(&item.attrs, sym::non_exhaustive) { - ty::Visibility::Restricted(CRATE_DEF_ID) + Visibility::Restricted(CRATE_DEF_ID) } else { vis }; @@ -847,7 +834,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { // constructor visibility should still be determined correctly. let field_vis = self .try_resolve_visibility(&field.vis, false) - .unwrap_or(ty::Visibility::Public); + .unwrap_or(Visibility::Public); if ctor_vis.is_at_least(field_vis, self.r.tcx) { ctor_vis = field_vis; } @@ -856,7 +843,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { let feed = self.r.feed(ctor_node_id); let ctor_def_id = feed.key(); let ctor_res = self.res(ctor_def_id); - self.r.define(parent, ident, ValueNS, (ctor_res, ctor_vis, sp, expansion)); + self.r.define(parent, ident, ValueNS, ctor_res, ctor_vis, sp, expansion); self.r.feed_visibility(feed, ctor_vis); // We need the field visibility spans also for the constructor for E0603. self.insert_field_visibilities_local(ctor_def_id.to_def_id(), vdata.fields()); @@ -896,7 +883,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { item: &Item, ident: Ident, local_def_id: LocalDefId, - vis: ty::Visibility, + vis: Visibility, parent: Module<'ra>, ) { let sp = item.span; @@ -920,8 +907,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { } .map(|module| { let used = self.process_macro_use_imports(item, module); - let vis = ty::Visibility::<LocalDefId>::Public; - let binding = (module, vis, sp, expansion).to_name_binding(self.r.arenas); + let binding = self.r.arenas.new_pub_res_binding(module.res().unwrap(), sp, expansion); (used, Some(ModuleOrUniformRoot::Module(module)), binding) }) .unwrap_or((true, None, self.r.dummy_binding)); @@ -978,7 +964,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { ); } } - self.r.define(parent, ident, TypeNS, imported_binding); + self.r.define_binding(parent, ident, TypeNS, imported_binding); } /// Constructs the reduced graph for one foreign item. @@ -995,7 +981,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { let parent = self.parent_scope.module; let expansion = self.parent_scope.expansion; let vis = self.resolve_visibility(&item.vis); - self.r.define(parent, ident, ns, (self.res(def_id), vis, item.span, expansion)); + self.r.define(parent, ident, ns, self.res(def_id), vis, item.span, expansion); self.r.feed_visibility(feed, vis); } @@ -1003,7 +989,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { let parent = self.parent_scope.module; let expansion = self.parent_scope.expansion; if self.block_needs_anonymous_module(block) { - let module = self.r.new_module( + let module = self.r.new_local_module( Some(parent), ModuleKind::Block, expansion.to_expn_id(), @@ -1081,7 +1067,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { root_span: span, span, module_path: Vec::new(), - vis: ty::Visibility::Restricted(CRATE_DEF_ID), + vis: Visibility::Restricted(CRATE_DEF_ID), }) }; @@ -1135,7 +1121,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { } /// Returns `true` if this attribute list contains `macro_use`. - fn contains_macro_use(&mut self, attrs: &[ast::Attribute]) -> bool { + fn contains_macro_use(&self, attrs: &[ast::Attribute]) -> bool { for attr in attrs { if attr.has_name(sym::macro_escape) { let inner_attribute = matches!(attr.style, ast::AttrStyle::Inner); @@ -1231,11 +1217,11 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { self.r.macro_names.insert(ident); let is_macro_export = ast::attr::contains_name(&item.attrs, sym::macro_export); let vis = if is_macro_export { - ty::Visibility::Public + Visibility::Public } else { - ty::Visibility::Restricted(CRATE_DEF_ID) + Visibility::Restricted(CRATE_DEF_ID) }; - let binding = (res, vis, span, expansion).to_name_binding(self.r.arenas); + let binding = self.r.arenas.new_res_binding(res, vis.to_def_id(), span, expansion); self.r.set_binding_parent_module(binding, parent_scope.module); self.r.all_macro_rules.insert(ident.name); if is_macro_export { @@ -1254,7 +1240,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { }); self.r.import_use_map.insert(import, Used::Other); let import_binding = self.r.import(binding, import); - self.r.define(self.r.graph_root, ident, MacroNS, import_binding); + self.r.define_binding(self.r.graph_root, ident, MacroNS, import_binding); } else { self.r.check_reserved_macro_name(ident, res); self.insert_unused_macro(ident, def_id, item.id); @@ -1275,14 +1261,14 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { // Visibilities must not be resolved non-speculatively twice // and we already resolved this one as a `fn` item visibility. ItemKind::Fn(..) => { - self.try_resolve_visibility(&item.vis, false).unwrap_or(ty::Visibility::Public) + self.try_resolve_visibility(&item.vis, false).unwrap_or(Visibility::Public) } _ => self.resolve_visibility(&item.vis), }; if !vis.is_public() { self.insert_unused_macro(ident, def_id, item.id); } - self.r.define(module, ident, MacroNS, (res, vis, span, expansion)); + self.r.define(module, ident, MacroNS, res, vis, span, expansion); self.r.feed_visibility(feed, vis); self.parent_scope.macro_rules } @@ -1418,7 +1404,7 @@ impl<'a, 'ra, 'tcx> Visitor<'a> for BuildReducedGraphVisitor<'a, 'ra, 'tcx> { if ctxt == AssocCtxt::Trait { let parent = self.parent_scope.module; let expansion = self.parent_scope.expansion; - self.r.define(parent, ident, ns, (self.res(def_id), vis, item.span, expansion)); + self.r.define(parent, ident, ns, self.res(def_id), vis, item.span, expansion); } else if !matches!(&item.kind, AssocItemKind::Delegation(deleg) if deleg.from_glob) { let impl_def_id = self.r.tcx.local_parent(local_def_id); let key = BindingKey::new(ident.normalize_to_macros_2_0(), ns); @@ -1503,13 +1489,13 @@ impl<'a, 'ra, 'tcx> Visitor<'a> for BuildReducedGraphVisitor<'a, 'ra, 'tcx> { let feed = self.r.feed(variant.id); let def_id = feed.key(); let vis = self.resolve_visibility(&variant.vis); - self.r.define(parent, ident, TypeNS, (self.res(def_id), vis, variant.span, expn_id)); + self.r.define(parent, ident, TypeNS, self.res(def_id), vis, variant.span, expn_id); self.r.feed_visibility(feed, vis); // If the variant is marked as non_exhaustive then lower the visibility to within the crate. let ctor_vis = if vis.is_public() && ast::attr::contains_name(&variant.attrs, sym::non_exhaustive) { - ty::Visibility::Restricted(CRATE_DEF_ID) + Visibility::Restricted(CRATE_DEF_ID) } else { vis }; @@ -1519,7 +1505,7 @@ impl<'a, 'ra, 'tcx> Visitor<'a> for BuildReducedGraphVisitor<'a, 'ra, 'tcx> { let feed = self.r.feed(ctor_node_id); let ctor_def_id = feed.key(); let ctor_res = self.res(ctor_def_id); - self.r.define(parent, ident, ValueNS, (ctor_res, ctor_vis, variant.span, expn_id)); + self.r.define(parent, ident, ValueNS, ctor_res, ctor_vis, variant.span, expn_id); self.r.feed_visibility(feed, ctor_vis); } diff --git a/compiler/rustc_resolve/src/def_collector.rs b/compiler/rustc_resolve/src/def_collector.rs index 781e2ce9704..7d51fef28d3 100644 --- a/compiler/rustc_resolve/src/def_collector.rs +++ b/compiler/rustc_resolve/src/def_collector.rs @@ -2,7 +2,7 @@ use std::mem; use rustc_ast::visit::FnKind; use rustc_ast::*; -use rustc_attr_parsing::{AttributeParser, Early, OmitDoc}; +use rustc_attr_parsing::{AttributeParser, Early, OmitDoc, ShouldEmit}; use rustc_expand::expand::AstFragment; use rustc_hir as hir; use rustc_hir::def::{CtorKind, CtorOf, DefKind}; @@ -132,7 +132,7 @@ impl<'a, 'ra, 'tcx> visit::Visitor<'a> for DefCollector<'a, 'ra, 'tcx> { &self.resolver.tcx.sess, self.resolver.tcx.features(), Vec::new(), - Early { emit_errors: false }, + Early { emit_errors: ShouldEmit::Nothing }, ); let attrs = parser.parse_attribute_list( &i.attrs, diff --git a/compiler/rustc_resolve/src/diagnostics.rs b/compiler/rustc_resolve/src/diagnostics.rs index 93d848787ef..f6f45adabe9 100644 --- a/compiler/rustc_resolve/src/diagnostics.rs +++ b/compiler/rustc_resolve/src/diagnostics.rs @@ -1,6 +1,8 @@ use rustc_ast::ptr::P; use rustc_ast::visit::{self, Visitor}; -use rustc_ast::{self as ast, CRATE_NODE_ID, Crate, ItemKind, ModKind, NodeId, Path}; +use rustc_ast::{ + self as ast, CRATE_NODE_ID, Crate, ItemKind, ModKind, NodeId, Path, join_path_idents, +}; use rustc_ast_pretty::pprust; use rustc_attr_data_structures::{ self as attr, AttributeKind, CfgEntry, Stability, StrippedCfgItem, find_attr, @@ -232,12 +234,12 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { return; } - let old_kind = match (ns, old_binding.module()) { + let old_kind = match (ns, old_binding.res()) { (ValueNS, _) => "value", (MacroNS, _) => "macro", (TypeNS, _) if old_binding.is_extern_crate() => "extern crate", - (TypeNS, Some(module)) if module.is_normal() => "module", - (TypeNS, Some(module)) if module.is_trait() => "trait", + (TypeNS, Res::Def(DefKind::Mod, _)) => "module", + (TypeNS, Res::Def(DefKind::Trait, _)) => "trait", (TypeNS, _) => "type", }; @@ -1319,7 +1321,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } // collect submodules to explore - if let Some(module) = name_binding.module() { + if let Some(def_id) = name_binding.res().module_like_def_id() { // form the path let mut path_segments = path_segments.clone(); path_segments.push(ast::PathSegment::from_ident(ident)); @@ -1339,14 +1341,14 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { if !is_extern_crate_that_also_appears_in_prelude || alias_import { // add the module to the lookup - if seen_modules.insert(module.def_id()) { + if seen_modules.insert(def_id) { if via_import { &mut worklist_via_import } else { &mut worklist }.push( ( - module, + this.expect_module(def_id), path_segments, child_accessible, child_doc_visible, - is_stable && this.is_stable(module.def_id(), name_binding.span), + is_stable && this.is_stable(def_id, name_binding.span), ), ); } @@ -2018,7 +2020,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } } - let mut sugg_paths = vec![]; + let mut sugg_paths: Vec<(Vec<Ident>, bool)> = vec![]; if let Some(mut def_id) = res.opt_def_id() { // We can't use `def_path_str` in resolve. let mut path = vec![def_id]; @@ -2031,16 +2033,16 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } } // We will only suggest importing directly if it is accessible through that path. - let path_names: Option<Vec<String>> = path + let path_names: Option<Vec<Ident>> = path .iter() .rev() .map(|def_id| { - self.tcx.opt_item_name(*def_id).map(|n| { - if def_id.is_top_level_module() { - "crate".to_string() + self.tcx.opt_item_name(*def_id).map(|name| { + Ident::with_dummy_span(if def_id.is_top_level_module() { + kw::Crate } else { - n.to_string() - } + name + }) }) }) .collect(); @@ -2084,17 +2086,14 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { match binding.kind { NameBindingKind::Import { import, .. } => { for segment in import.module_path.iter().skip(1) { - path.push(segment.ident.to_string()); + path.push(segment.ident); } sugg_paths.push(( - path.iter() - .cloned() - .chain(vec![ident.to_string()].into_iter()) - .collect::<Vec<_>>(), + path.iter().cloned().chain(std::iter::once(ident)).collect::<Vec<_>>(), true, // re-export )); } - NameBindingKind::Res(_) | NameBindingKind::Module(_) => {} + NameBindingKind::Res(_) => {} } let first = binding == first_binding; let def_span = self.tcx.sess.source_map().guess_head_span(binding.span); @@ -2126,7 +2125,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { err.subdiagnostic(note); } // We prioritize shorter paths, non-core imports and direct imports over the alternatives. - sugg_paths.sort_by_key(|(p, reexport)| (p.len(), p[0] == "core", *reexport)); + sugg_paths.sort_by_key(|(p, reexport)| (p.len(), p[0].name == sym::core, *reexport)); for (sugg, reexport) in sugg_paths { if not_publicly_reexported { break; @@ -2136,7 +2135,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { // `tests/ui/imports/issue-55884-2.rs` continue; } - let path = sugg.join("::"); + let path = join_path_idents(sugg); let sugg = if reexport { errors::ImportIdent::ThroughReExport { span: dedup_span, ident, path } } else { @@ -2150,7 +2149,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } pub(crate) fn find_similarly_named_module_or_crate( - &mut self, + &self, ident: Symbol, current_module: Module<'ra>, ) -> Option<Symbol> { @@ -2159,7 +2158,16 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { .keys() .map(|ident| ident.name) .chain( - self.module_map + self.local_module_map + .iter() + .filter(|(_, module)| { + current_module.is_ancestor_of(**module) && current_module != **module + }) + .flat_map(|(_, module)| module.kind.name()), + ) + .chain( + self.extern_module_map + .borrow() .iter() .filter(|(_, module)| { current_module.is_ancestor_of(**module) && current_module != **module @@ -2306,25 +2314,11 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { .ok() }; if let Some(binding) = binding { - let mut found = |what| { - msg = format!( - "expected {}, found {} `{}` in {}", - ns.descr(), - what, - ident, - parent - ) - }; - if binding.module().is_some() { - found("module") - } else { - match binding.res() { - // Avoid using TyCtxt::def_kind_descr in the resolver, because it - // indirectly *calls* the resolver, and would cause a query cycle. - Res::Def(kind, id) => found(kind.descr(id)), - _ => found(ns_to_try.descr()), - } - } + msg = format!( + "expected {}, found {} `{ident}` in {parent}", + ns.descr(), + binding.res().descr(), + ); }; } (msg, None) @@ -2449,7 +2443,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } fn undeclared_module_suggest_declare( - &mut self, + &self, ident: Ident, path: std::path::PathBuf, ) -> Option<(Vec<(Span, String)>, String, Applicability)> { @@ -2464,7 +2458,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { )) } - fn undeclared_module_exists(&mut self, ident: Ident) -> Option<std::path::PathBuf> { + fn undeclared_module_exists(&self, ident: Ident) -> Option<std::path::PathBuf> { let map = self.tcx.sess.source_map(); let src = map.span_to_filename(ident.span).into_local_path()?; @@ -2823,24 +2817,23 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { return cached; } visited.insert(parent_module, false); - let res = r.module_map.get(&parent_module).is_some_and(|m| { - for importer in m.glob_importers.borrow().iter() { - if let Some(next_parent_module) = importer.parent_scope.module.opt_def_id() + let m = r.expect_module(parent_module); + let mut res = false; + for importer in m.glob_importers.borrow().iter() { + if let Some(next_parent_module) = importer.parent_scope.module.opt_def_id() { + if next_parent_module == module + || comes_from_same_module_for_glob( + r, + next_parent_module, + module, + visited, + ) { - if next_parent_module == module - || comes_from_same_module_for_glob( - r, - next_parent_module, - module, - visited, - ) - { - return true; - } + res = true; + break; } } - false - }); + } visited.insert(parent_module, res); res } diff --git a/compiler/rustc_resolve/src/effective_visibilities.rs b/compiler/rustc_resolve/src/effective_visibilities.rs index 5de80de3f8d..34d1e9552fd 100644 --- a/compiler/rustc_resolve/src/effective_visibilities.rs +++ b/compiler/rustc_resolve/src/effective_visibilities.rs @@ -38,11 +38,11 @@ pub(crate) struct EffectiveVisibilitiesVisitor<'a, 'ra, 'tcx> { } impl Resolver<'_, '_> { - fn nearest_normal_mod(&mut self, def_id: LocalDefId) -> LocalDefId { + fn nearest_normal_mod(&self, def_id: LocalDefId) -> LocalDefId { self.get_nearest_non_block_module(def_id.to_def_id()).nearest_parent_mod().expect_local() } - fn private_vis_import(&mut self, binding: NameBinding<'_>) -> Visibility { + fn private_vis_import(&self, binding: NameBinding<'_>) -> Visibility { let NameBindingKind::Import { import, .. } = binding.kind else { unreachable!() }; Visibility::Restricted( import @@ -52,7 +52,7 @@ impl Resolver<'_, '_> { ) } - fn private_vis_def(&mut self, def_id: LocalDefId) -> Visibility { + fn private_vis_def(&self, def_id: LocalDefId) -> Visibility { // For mod items `nearest_normal_mod` returns its argument, but we actually need its parent. let normal_mod_id = self.nearest_normal_mod(def_id); if normal_mod_id == def_id { @@ -113,8 +113,7 @@ impl<'a, 'ra, 'tcx> EffectiveVisibilitiesVisitor<'a, 'ra, 'tcx> { /// Update effective visibilities of bindings in the given module, /// including their whole reexport chains. fn set_bindings_effective_visibilities(&mut self, module_id: LocalDefId) { - assert!(self.r.module_map.contains_key(&module_id.to_def_id())); - let module = self.r.get_module(module_id.to_def_id()).unwrap(); + let module = self.r.expect_module(module_id.to_def_id()); let resolutions = self.r.resolutions(module); for (_, name_resolution) in resolutions.borrow().iter() { diff --git a/compiler/rustc_resolve/src/ident.rs b/compiler/rustc_resolve/src/ident.rs index 99297de40d5..34941398a2b 100644 --- a/compiler/rustc_resolve/src/ident.rs +++ b/compiler/rustc_resolve/src/ident.rs @@ -3,11 +3,10 @@ use Namespace::*; use rustc_ast::{self as ast, NodeId}; use rustc_errors::ErrorGuaranteed; use rustc_hir::def::{DefKind, Namespace, NonMacroAttrKind, PartialRes, PerNS}; -use rustc_middle::{bug, ty}; +use rustc_middle::bug; use rustc_session::lint::BuiltinLintDiag; use rustc_session::lint::builtin::PROC_MACRO_DERIVE_RESOLUTION_FALLBACK; use rustc_session::parse::feature_err; -use rustc_span::def_id::LocalDefId; use rustc_span::hygiene::{ExpnId, ExpnKind, LocalExpnId, MacroKind, SyntaxContext}; use rustc_span::{Ident, Span, kw, sym}; use tracing::{debug, instrument}; @@ -20,11 +19,9 @@ use crate::{ AmbiguityError, AmbiguityErrorMisc, AmbiguityKind, BindingKey, Determinacy, Finalize, ImportKind, LexicalScopeBinding, Module, ModuleKind, ModuleOrUniformRoot, NameBinding, NameBindingKind, ParentScope, PathResult, PrivacyError, Res, ResolutionError, Resolver, Scope, - ScopeSet, Segment, ToNameBinding, Used, Weak, errors, + ScopeSet, Segment, Used, Weak, errors, }; -type Visibility = ty::Visibility<LocalDefId>; - #[derive(Copy, Clone)] pub enum UsePrelude { No, @@ -222,7 +219,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } fn hygienic_lexical_parent( - &mut self, + &self, module: Module<'ra>, ctxt: &mut SyntaxContext, derive_fallback_lint_id: Option<NodeId>, @@ -464,13 +461,11 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { ) { Ok((Some(ext), _)) => { if ext.helper_attrs.contains(&ident.name) { - let binding = ( + let binding = this.arenas.new_pub_res_binding( Res::NonMacroAttr(NonMacroAttrKind::DeriveHelperCompat), - Visibility::Public, derive.span, LocalExpnId::ROOT, - ) - .to_name_binding(this.arenas); + ); result = Ok((binding, Flags::empty())); break; } @@ -846,7 +841,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { if ns == TypeNS { if ident.name == kw::Crate || ident.name == kw::DollarCrate { let module = self.resolve_crate_root(ident); - return Ok(self.module_self_bindings[&module]); + return Ok(module.self_binding.unwrap()); } else if ident.name == kw::Super || ident.name == kw::SelfLower { // FIXME: Implement these with renaming requirements so that e.g. // `use super;` doesn't work, but `use super as name;` does. @@ -890,7 +885,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { ); } - let check_usable = |this: &mut Self, binding: NameBinding<'ra>| { + let check_usable = |this: &Self, binding: NameBinding<'ra>| { let usable = this.is_accessible_from(binding.vis, parent_scope.module); if usable { Ok(binding) } else { Err((Determined, Weak::No)) } }; @@ -1637,11 +1632,11 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } let maybe_assoc = opt_ns != Some(MacroNS) && PathSource::Type.is_expected(res); - if let Some(next_module) = binding.module() { - if self.mods_with_parse_errors.contains(&next_module.def_id()) { + if let Some(def_id) = binding.res().module_like_def_id() { + if self.mods_with_parse_errors.contains(&def_id) { module_had_parse_errors = true; } - module = Some(ModuleOrUniformRoot::Module(next_module)); + module = Some(ModuleOrUniformRoot::Module(self.expect_module(def_id))); record_segment_res(self, res); } else if res == Res::ToolMod && !is_last && opt_ns.is_some() { if binding.is_import() { diff --git a/compiler/rustc_resolve/src/imports.rs b/compiler/rustc_resolve/src/imports.rs index 40c63a3edf3..0a4c25b0eb0 100644 --- a/compiler/rustc_resolve/src/imports.rs +++ b/compiler/rustc_resolve/src/imports.rs @@ -11,11 +11,12 @@ use rustc_errors::{Applicability, MultiSpan, pluralize, struct_span_code_err}; use rustc_hir::def::{self, DefKind, PartialRes}; use rustc_hir::def_id::DefId; use rustc_middle::metadata::{ModChild, Reexport}; -use rustc_middle::{span_bug, ty}; +use rustc_middle::span_bug; +use rustc_middle::ty::Visibility; use rustc_session::lint::BuiltinLintDiag; use rustc_session::lint::builtin::{ - AMBIGUOUS_GLOB_REEXPORTS, HIDDEN_GLOB_REEXPORTS, PUB_USE_OF_PRIVATE_EXTERN_CRATE, - REDUNDANT_IMPORTS, UNUSED_IMPORTS, + AMBIGUOUS_GLOB_REEXPORTS, EXPORTED_PRIVATE_DEPENDENCIES, HIDDEN_GLOB_REEXPORTS, + PUB_USE_OF_PRIVATE_EXTERN_CRATE, REDUNDANT_IMPORTS, UNUSED_IMPORTS, }; use rustc_session::parse::feature_err; use rustc_span::edit_distance::find_best_match_for_name; @@ -88,7 +89,7 @@ pub(crate) enum ImportKind<'ra> { is_prelude: bool, // The visibility of the greatest re-export. // n.b. `max_vis` is only used in `finalize_import` to check for re-export errors. - max_vis: Cell<Option<ty::Visibility>>, + max_vis: Cell<Option<Visibility>>, id: NodeId, }, ExternCrate { @@ -185,7 +186,7 @@ pub(crate) struct ImportData<'ra> { /// |`use ::foo` | `ModuleOrUniformRoot::CrateRootAndExternPrelude` | a special case in 2015 edition | /// |`use foo` | `ModuleOrUniformRoot::CurrentScope` | - | pub imported_module: Cell<Option<ModuleOrUniformRoot<'ra>>>, - pub vis: ty::Visibility, + pub vis: Visibility, } /// All imports are unique and allocated on a same arena, @@ -455,7 +456,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { f: F, ) -> T where - F: FnOnce(&mut Resolver<'ra, 'tcx>, &mut NameResolution<'ra>) -> T, + F: FnOnce(&Resolver<'ra, 'tcx>, &mut NameResolution<'ra>) -> T, { // Ensure that `resolution` isn't borrowed when defining in the module's glob importers, // during which the resolution might end up getting re-defined via a glob cycle. @@ -634,10 +635,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } } - pub(crate) fn check_hidden_glob_reexports( - &mut self, - exported_ambiguities: FxHashSet<NameBinding<'ra>>, - ) { + pub(crate) fn lint_reexports(&mut self, exported_ambiguities: FxHashSet<NameBinding<'ra>>) { for module in self.arenas.local_modules().iter() { for (key, resolution) in self.resolutions(*module).borrow().iter() { let resolution = resolution.borrow(); @@ -679,9 +677,6 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { NameBindingKind::Res(res) => { Some(self.def_id_to_node_id(res.def_id().expect_local())) } - NameBindingKind::Module(module) => { - Some(self.def_id_to_node_id(module.def_id().expect_local())) - } NameBindingKind::Import { import, .. } => import.id(), }; if let Some(binding_id) = binding_id { @@ -699,6 +694,27 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } } } + + if let NameBindingKind::Import { import, .. } = binding.kind + && let Some(binding_id) = import.id() + && let import_def_id = self.local_def_id(binding_id) + && self.effective_visibilities.is_exported(import_def_id) + && let Res::Def(reexported_kind, reexported_def_id) = binding.res() + && !matches!(reexported_kind, DefKind::Ctor(..)) + && !reexported_def_id.is_local() + && self.tcx.is_private_dep(reexported_def_id.krate) + { + self.lint_buffer.buffer_lint( + EXPORTED_PRIVATE_DEPENDENCIES, + binding_id, + binding.span, + BuiltinLintDiag::ReexportPrivateDependency { + kind: binding.res().descr().to_string(), + name: key.ident.name.to_string(), + krate: self.tcx.crate_name(reexported_def_id.krate), + }, + ); + } } } } @@ -875,7 +891,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } // We need the `target`, `source` can be extracted. let imported_binding = this.import(binding, import); - this.define(parent, target, ns, imported_binding); + this.define_binding(parent, target, ns, imported_binding); PendingBinding::Ready(Some(imported_binding)) } Err(Determinacy::Determined) => { @@ -1283,7 +1299,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { if !binding.vis.is_at_least(import.vis, this.tcx) { reexport_error = Some((ns, binding)); - if let ty::Visibility::Restricted(binding_def_id) = binding.vis + if let Visibility::Restricted(binding_def_id) = binding.vis && binding_def_id.is_top_level_module() { crate_private_reexport = true; diff --git a/compiler/rustc_resolve/src/late.rs b/compiler/rustc_resolve/src/late.rs index 44a567f7810..93cec8daa5a 100644 --- a/compiler/rustc_resolve/src/late.rs +++ b/compiler/rustc_resolve/src/late.rs @@ -28,7 +28,7 @@ use rustc_hir::def::{self, CtorKind, DefKind, LifetimeRes, NonMacroAttrKind, Par use rustc_hir::def_id::{CRATE_DEF_ID, DefId, LOCAL_CRATE, LocalDefId}; use rustc_hir::{MissingLifetimeKind, PrimTy, TraitCandidate}; use rustc_middle::middle::resolve_bound_vars::Set1; -use rustc_middle::ty::DelegationFnSig; +use rustc_middle::ty::{DelegationFnSig, Visibility}; use rustc_middle::{bug, span_bug}; use rustc_session::config::{CrateType, ResolveDocLinks}; use rustc_session::lint::{self, BuiltinLintDiag}; @@ -638,8 +638,8 @@ impl PathSource<'_, '_, '_> { enum MaybeExported<'a> { Ok(NodeId), Impl(Option<DefId>), - ImplItem(Result<DefId, &'a Visibility>), - NestedUse(&'a Visibility), + ImplItem(Result<DefId, &'a ast::Visibility>), + NestedUse(&'a ast::Visibility), } impl MaybeExported<'_> { @@ -2491,7 +2491,7 @@ impl<'a, 'ast, 'ra, 'tcx> LateResolutionVisitor<'a, 'ast, 'ra, 'tcx> { /// Searches the current set of local scopes for labels. Returns the `NodeId` of the resolved /// label and reports an error if the label is not found or is unreachable. - fn resolve_label(&mut self, mut label: Ident) -> Result<(NodeId, Span), ResolutionError<'ra>> { + fn resolve_label(&self, mut label: Ident) -> Result<(NodeId, Span), ResolutionError<'ra>> { let mut suggestion = None; for i in (0..self.label_ribs.len()).rev() { @@ -2899,9 +2899,21 @@ impl<'a, 'ast, 'ra, 'tcx> LateResolutionVisitor<'a, 'ast, 'ra, 'tcx> { } if param.ident.name == kw::UnderscoreLifetime { + // To avoid emitting two similar errors, + // we need to check if the span is a raw underscore lifetime, see issue #143152 + let is_raw_underscore_lifetime = self + .r + .tcx + .sess + .psess + .raw_identifier_spans + .iter() + .any(|span| span == param.span()); + self.r .dcx() - .emit_err(errors::UnderscoreLifetimeIsReserved { span: param.ident.span }); + .create_err(errors::UnderscoreLifetimeIsReserved { span: param.ident.span }) + .emit_unless(is_raw_underscore_lifetime); // Record lifetime res, so lowering knows there is something fishy. self.record_lifetime_param(param.id, LifetimeRes::Error); continue; @@ -3463,7 +3475,7 @@ impl<'a, 'ast, 'ra, 'tcx> LateResolutionVisitor<'a, 'ast, 'ra, 'tcx> { span, "error should be emitted when an unexpected trait item is used", ); - rustc_middle::ty::Visibility::Public + Visibility::Public }; this.r.feed_visibility(this.r.feed(id), vis); }; diff --git a/compiler/rustc_resolve/src/late/diagnostics.rs b/compiler/rustc_resolve/src/late/diagnostics.rs index b669796bb02..ee462d90764 100644 --- a/compiler/rustc_resolve/src/late/diagnostics.rs +++ b/compiler/rustc_resolve/src/late/diagnostics.rs @@ -926,7 +926,7 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { continue; }; if let Res::Def(DefKind::Mod, module) = res.expect_full_res() - && let Some(module) = self.r.get_module(module) + && let module = self.r.expect_module(module) && let item = path[idx + 1].ident && let Some(did) = find_doc_alias_name(self.r, module, item.name) { @@ -939,7 +939,7 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { } fn suggest_trait_and_bounds( - &mut self, + &self, err: &mut Diag<'_>, source: PathSource<'_, '_, '_>, res: Option<Res>, @@ -1140,7 +1140,7 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { /// Emit special messages for unresolved `Self` and `self`. fn suggest_self_ty( - &mut self, + &self, err: &mut Diag<'_>, source: PathSource<'_, '_, '_>, path: &[Segment], @@ -1256,7 +1256,7 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { } fn detect_missing_binding_available_from_pattern( - &mut self, + &self, err: &mut Diag<'_>, path: &[Segment], following_seg: Option<&Segment>, @@ -1302,11 +1302,7 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { } } - fn suggest_at_operator_in_slice_pat_with_range( - &mut self, - err: &mut Diag<'_>, - path: &[Segment], - ) { + fn suggest_at_operator_in_slice_pat_with_range(&self, err: &mut Diag<'_>, path: &[Segment]) { let Some(pat) = self.diag_metadata.current_pat else { return }; let (bound, side, range) = match &pat.kind { ast::PatKind::Range(Some(bound), None, range) => (bound, Side::Start, range), @@ -1367,7 +1363,7 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { } fn explain_functions_in_pattern( - &mut self, + &self, err: &mut Diag<'_>, res: Option<Res>, source: PathSource<'_, '_, '_>, @@ -1379,7 +1375,7 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { } fn suggest_changing_type_to_const_param( - &mut self, + &self, err: &mut Diag<'_>, res: Option<Res>, source: PathSource<'_, '_, '_>, @@ -1429,7 +1425,7 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { } fn suggest_pattern_match_with_let( - &mut self, + &self, err: &mut Diag<'_>, source: PathSource<'_, '_, '_>, span: Span, @@ -1485,7 +1481,7 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { } /// Given `where <T as Bar>::Baz: String`, suggest `where T: Bar<Baz = String>`. - fn restrict_assoc_type_in_where_clause(&mut self, span: Span, err: &mut Diag<'_>) -> bool { + fn restrict_assoc_type_in_where_clause(&self, span: Span, err: &mut Diag<'_>) -> bool { // Detect that we are actually in a `where` predicate. let (bounded_ty, bounds, where_span) = if let Some(ast::WherePredicate { kind: @@ -1633,7 +1629,7 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { let ns = source.namespace(); let is_expected = &|res| source.is_expected(res); - let path_sep = |this: &mut Self, err: &mut Diag<'_>, expr: &Expr, kind: DefKind| { + let path_sep = |this: &Self, err: &mut Diag<'_>, expr: &Expr, kind: DefKind| { const MESSAGE: &str = "use the path separator to refer to an item"; let (lhs_span, rhs_span) = match &expr.kind { @@ -2531,16 +2527,14 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { // FIXME: this is not totally accurate, but mostly works suggestion.candidate != following_seg.ident.name } - Res::Def(DefKind::Mod, def_id) => self.r.get_module(def_id).map_or_else( - || false, - |module| { - self.r - .resolutions(module) - .borrow() - .iter() - .any(|(key, _)| key.ident.name == following_seg.ident.name) - }, - ), + Res::Def(DefKind::Mod, def_id) => { + let module = self.r.expect_module(def_id); + self.r + .resolutions(module) + .borrow() + .iter() + .any(|(key, _)| key.ident.name == following_seg.ident.name) + } _ => true, }); } @@ -2589,7 +2583,7 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { // try to give a suggestion for this pattern: `name = blah`, which is common in other languages // suggest `let name = blah` to introduce a new binding - fn let_binding_suggestion(&mut self, err: &mut Diag<'_>, ident_span: Span) -> bool { + fn let_binding_suggestion(&self, err: &mut Diag<'_>, ident_span: Span) -> bool { if ident_span.from_expansion() { return false; } @@ -2656,18 +2650,17 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { if result.is_some() || !name_binding.vis.is_visible_locally() { return; } - if let Some(module) = name_binding.module() { + if let Some(module_def_id) = name_binding.res().module_like_def_id() { // form the path let mut path_segments = path_segments.clone(); path_segments.push(ast::PathSegment::from_ident(ident)); - let module_def_id = module.def_id(); let doc_visible = doc_visible && (module_def_id.is_local() || !r.tcx.is_doc_hidden(module_def_id)); if module_def_id == def_id { let path = Path { span: name_binding.span, segments: path_segments, tokens: None }; result = Some(( - module, + r.expect_module(module_def_id), ImportSuggestion { did: Some(def_id), descr: "module", @@ -2682,6 +2675,7 @@ impl<'ast, 'ra, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { } else { // add the module to the lookup if seen_modules.insert(module_def_id) { + let module = r.expect_module(module_def_id); worklist.push((module, path_segments, doc_visible)); } } diff --git a/compiler/rustc_resolve/src/lib.rs b/compiler/rustc_resolve/src/lib.rs index c2b3451d4a1..dae30b77ec1 100644 --- a/compiler/rustc_resolve/src/lib.rs +++ b/compiler/rustc_resolve/src/lib.rs @@ -65,7 +65,7 @@ use rustc_middle::query::Providers; use rustc_middle::span_bug; use rustc_middle::ty::{ self, DelegationFnSig, Feed, MainDefinition, RegisteredTools, ResolverGlobalCtxt, - ResolverOutputs, TyCtxt, TyCtxtFeed, + ResolverOutputs, TyCtxt, TyCtxtFeed, Visibility, }; use rustc_query_system::ich::StableHashingContext; use rustc_session::lint::builtin::PRIVATE_MACRO_USE; @@ -579,12 +579,16 @@ struct ModuleData<'ra> { globs: RefCell<Vec<Import<'ra>>>, /// Used to memoize the traits in this module for faster searches through all traits in scope. - traits: RefCell<Option<Box<[(Ident, NameBinding<'ra>)]>>>, + traits: RefCell<Option<Box<[(Ident, NameBinding<'ra>, Option<Module<'ra>>)]>>>, /// Span of the module itself. Used for error reporting. span: Span, expansion: ExpnId, + + /// Binding for implicitly declared names that come with a module, + /// like `self` (not yet used), or `crate`/`$crate` (for root modules). + self_binding: Option<NameBinding<'ra>>, } /// All modules are unique and allocated on a same arena, @@ -613,6 +617,7 @@ impl<'ra> ModuleData<'ra> { expansion: ExpnId, span: Span, no_implicit_prelude: bool, + self_binding: Option<NameBinding<'ra>>, ) -> Self { let is_foreign = match kind { ModuleKind::Def(_, def_id, _) => !def_id.is_local(), @@ -630,6 +635,7 @@ impl<'ra> ModuleData<'ra> { traits: RefCell::new(None), span, expansion, + self_binding, } } } @@ -655,12 +661,12 @@ impl<'ra> Module<'ra> { let mut traits = self.traits.borrow_mut(); if traits.is_none() { let mut collected_traits = Vec::new(); - self.for_each_child(resolver, |_, name, ns, binding| { + self.for_each_child(resolver, |r, name, ns, binding| { if ns != TypeNS { return; } - if let Res::Def(DefKind::Trait | DefKind::TraitAlias, _) = binding.res() { - collected_traits.push((name, binding)) + if let Res::Def(DefKind::Trait | DefKind::TraitAlias, def_id) = binding.res() { + collected_traits.push((name, binding, r.as_mut().get_module(def_id))) } }); *traits = Some(collected_traits.into_boxed_slice()); @@ -674,7 +680,6 @@ impl<'ra> Module<'ra> { } } - // Public for rustdoc. fn def_id(self) -> DefId { self.opt_def_id().expect("`ModuleData::def_id` is called on a block module") } @@ -749,7 +754,7 @@ struct NameBindingData<'ra> { warn_ambiguity: bool, expansion: LocalExpnId, span: Span, - vis: ty::Visibility<DefId>, + vis: Visibility<DefId>, } /// All name bindings are unique and allocated on a same arena, @@ -769,20 +774,9 @@ impl std::hash::Hash for NameBindingData<'_> { } } -trait ToNameBinding<'ra> { - fn to_name_binding(self, arenas: &'ra ResolverArenas<'ra>) -> NameBinding<'ra>; -} - -impl<'ra> ToNameBinding<'ra> for NameBinding<'ra> { - fn to_name_binding(self, _: &'ra ResolverArenas<'ra>) -> NameBinding<'ra> { - self - } -} - #[derive(Clone, Copy, Debug)] enum NameBindingKind<'ra> { Res(Res), - Module(Module<'ra>), Import { binding: NameBinding<'ra>, import: Import<'ra> }, } @@ -875,18 +869,9 @@ struct AmbiguityError<'ra> { } impl<'ra> NameBindingData<'ra> { - fn module(&self) -> Option<Module<'ra>> { - match self.kind { - NameBindingKind::Module(module) => Some(module), - NameBindingKind::Import { binding, .. } => binding.module(), - _ => None, - } - } - fn res(&self) -> Res { match self.kind { NameBindingKind::Res(res) => res, - NameBindingKind::Module(module) => module.res().unwrap(), NameBindingKind::Import { binding, .. } => binding.res(), } } @@ -921,7 +906,7 @@ impl<'ra> NameBindingData<'ra> { DefKind::Variant | DefKind::Ctor(CtorOf::Variant, ..), _, )) => true, - NameBindingKind::Res(..) | NameBindingKind::Module(..) => false, + NameBindingKind::Res(..) => false, } } @@ -930,11 +915,7 @@ impl<'ra> NameBindingData<'ra> { NameBindingKind::Import { import, .. } => { matches!(import.kind, ImportKind::ExternCrate { .. }) } - NameBindingKind::Module(module) - if let ModuleKind::Def(DefKind::Mod, def_id, _) = module.kind => - { - def_id.is_crate_root() - } + NameBindingKind::Res(Res::Def(_, def_id)) => def_id.is_crate_root(), _ => false, } } @@ -1100,7 +1081,10 @@ pub struct Resolver<'ra, 'tcx> { /// some AST passes can generate identifiers that only resolve to local or /// lang items. empty_module: Module<'ra>, - module_map: FxIndexMap<DefId, Module<'ra>>, + /// Eagerly populated map of all local non-block modules. + local_module_map: FxIndexMap<LocalDefId, Module<'ra>>, + /// Lazily populated cache of modules loaded from external crates. + extern_module_map: RefCell<FxIndexMap<DefId, Module<'ra>>>, binding_parent_modules: FxHashMap<NameBinding<'ra>, Module<'ra>>, underscore_disambiguator: u32, @@ -1108,7 +1092,7 @@ pub struct Resolver<'ra, 'tcx> { /// Maps glob imports to the names of items actually imported. glob_map: FxIndexMap<LocalDefId, FxIndexSet<Symbol>>, glob_error: Option<ErrorGuaranteed>, - visibilities_for_hashing: Vec<(LocalDefId, ty::Visibility)>, + visibilities_for_hashing: Vec<(LocalDefId, Visibility)>, used_imports: FxHashSet<NodeId>, maybe_unused_trait_imports: FxIndexSet<LocalDefId>, @@ -1126,17 +1110,14 @@ pub struct Resolver<'ra, 'tcx> { builtin_types_bindings: FxHashMap<Symbol, NameBinding<'ra>>, builtin_attrs_bindings: FxHashMap<Symbol, NameBinding<'ra>>, registered_tool_bindings: FxHashMap<Ident, NameBinding<'ra>>, - /// Binding for implicitly declared names that come with a module, - /// like `self` (not yet used), or `crate`/`$crate` (for root modules). - module_self_bindings: FxHashMap<Module<'ra>, NameBinding<'ra>>, - used_extern_options: FxHashSet<Symbol>, macro_names: FxHashSet<Ident>, builtin_macros: FxHashMap<Symbol, SyntaxExtensionKind>, registered_tools: &'tcx RegisteredTools, macro_use_prelude: FxIndexMap<Symbol, NameBinding<'ra>>, + /// Eagerly populated map of all local macro definitions. local_macro_map: FxHashMap<LocalDefId, &'ra MacroData>, - /// Lazily populated cache of macros loaded from external crates. + /// Lazily populated cache of macro definitions loaded from external crates. extern_macro_map: RefCell<FxHashMap<DefId, &'ra MacroData>>, dummy_ext_bang: Arc<SyntaxExtension>, dummy_ext_derive: Arc<SyntaxExtension>, @@ -1181,7 +1162,7 @@ pub struct Resolver<'ra, 'tcx> { /// Table for mapping struct IDs into struct constructor IDs, /// it's not used during normal resolution, only for better error reporting. /// Also includes of list of each fields visibility - struct_constructors: LocalDefIdMap<(Res, ty::Visibility<DefId>, Vec<ty::Visibility<DefId>>)>, + struct_constructors: LocalDefIdMap<(Res, Visibility<DefId>, Vec<Visibility<DefId>>)>, lint_buffer: LintBuffer, @@ -1255,6 +1236,32 @@ pub struct ResolverArenas<'ra> { } impl<'ra> ResolverArenas<'ra> { + fn new_res_binding( + &'ra self, + res: Res, + vis: Visibility<DefId>, + span: Span, + expansion: LocalExpnId, + ) -> NameBinding<'ra> { + self.alloc_name_binding(NameBindingData { + kind: NameBindingKind::Res(res), + ambiguity: None, + warn_ambiguity: false, + vis, + span, + expansion, + }) + } + + fn new_pub_res_binding( + &'ra self, + res: Res, + span: Span, + expn_id: LocalExpnId, + ) -> NameBinding<'ra> { + self.new_res_binding(res, Visibility::Public, span, expn_id) + } + fn new_module( &'ra self, parent: Option<Module<'ra>>, @@ -1262,26 +1269,25 @@ impl<'ra> ResolverArenas<'ra> { expn_id: ExpnId, span: Span, no_implicit_prelude: bool, - module_map: &mut FxIndexMap<DefId, Module<'ra>>, - module_self_bindings: &mut FxHashMap<Module<'ra>, NameBinding<'ra>>, ) -> Module<'ra> { + let (def_id, self_binding) = match kind { + ModuleKind::Def(def_kind, def_id, _) => ( + Some(def_id), + Some(self.new_pub_res_binding(Res::Def(def_kind, def_id), span, LocalExpnId::ROOT)), + ), + ModuleKind::Block => (None, None), + }; let module = Module(Interned::new_unchecked(self.modules.alloc(ModuleData::new( parent, kind, expn_id, span, no_implicit_prelude, + self_binding, )))); - let def_id = module.opt_def_id(); if def_id.is_none_or(|def_id| def_id.is_local()) { self.local_modules.borrow_mut().push(module); } - if let Some(def_id) = def_id { - module_map.insert(def_id, module); - let vis = ty::Visibility::<DefId>::Public; - let binding = (module, vis, module.span, LocalExpnId::ROOT).to_name_binding(self); - module_self_bindings.insert(module, binding); - } module } fn local_modules(&'ra self) -> std::cell::Ref<'ra, Vec<Module<'ra>>> { @@ -1422,25 +1428,21 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { arenas: &'ra ResolverArenas<'ra>, ) -> Resolver<'ra, 'tcx> { let root_def_id = CRATE_DEF_ID.to_def_id(); - let mut module_map = FxIndexMap::default(); - let mut module_self_bindings = FxHashMap::default(); + let mut local_module_map = FxIndexMap::default(); let graph_root = arenas.new_module( None, ModuleKind::Def(DefKind::Mod, root_def_id, None), ExpnId::root(), crate_span, attr::contains_name(attrs, sym::no_implicit_prelude), - &mut module_map, - &mut module_self_bindings, ); + local_module_map.insert(CRATE_DEF_ID, graph_root); let empty_module = arenas.new_module( None, ModuleKind::Def(DefKind::Mod, root_def_id, None), ExpnId::root(), DUMMY_SP, true, - &mut Default::default(), - &mut Default::default(), ); let mut node_id_to_def_id = NodeMap::default(); @@ -1470,8 +1472,6 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } let registered_tools = tcx.registered_tools(()); - - let pub_vis = ty::Visibility::<DefId>::Public; let edition = tcx.sess.edition(); let mut resolver = Resolver { @@ -1503,7 +1503,8 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { trait_map: NodeMap::default(), underscore_disambiguator: 0, empty_module, - module_map, + local_module_map, + extern_module_map: Default::default(), block_map: Default::default(), binding_parent_modules: FxHashMap::default(), ast_transform_scopes: FxHashMap::default(), @@ -1520,12 +1521,12 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { macro_expanded_macro_export_errors: BTreeSet::new(), arenas, - dummy_binding: (Res::Err, pub_vis, DUMMY_SP, LocalExpnId::ROOT).to_name_binding(arenas), + dummy_binding: arenas.new_pub_res_binding(Res::Err, DUMMY_SP, LocalExpnId::ROOT), builtin_types_bindings: PrimTy::ALL .iter() .map(|prim_ty| { - let binding = (Res::PrimTy(*prim_ty), pub_vis, DUMMY_SP, LocalExpnId::ROOT) - .to_name_binding(arenas); + let res = Res::PrimTy(*prim_ty); + let binding = arenas.new_pub_res_binding(res, DUMMY_SP, LocalExpnId::ROOT); (prim_ty.name(), binding) }) .collect(), @@ -1533,21 +1534,18 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { .iter() .map(|builtin_attr| { let res = Res::NonMacroAttr(NonMacroAttrKind::Builtin(builtin_attr.name)); - let binding = - (res, pub_vis, DUMMY_SP, LocalExpnId::ROOT).to_name_binding(arenas); + let binding = arenas.new_pub_res_binding(res, DUMMY_SP, LocalExpnId::ROOT); (builtin_attr.name, binding) }) .collect(), registered_tool_bindings: registered_tools .iter() .map(|ident| { - let binding = (Res::ToolMod, pub_vis, ident.span, LocalExpnId::ROOT) - .to_name_binding(arenas); + let res = Res::ToolMod; + let binding = arenas.new_pub_res_binding(res, ident.span, LocalExpnId::ROOT); (*ident, binding) }) .collect(), - module_self_bindings, - used_extern_options: Default::default(), macro_names: FxHashSet::default(), builtin_macros: Default::default(), @@ -1605,12 +1603,12 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { let root_parent_scope = ParentScope::module(graph_root, &resolver); resolver.invocation_parent_scopes.insert(LocalExpnId::ROOT, root_parent_scope); - resolver.feed_visibility(crate_feed, ty::Visibility::Public); + resolver.feed_visibility(crate_feed, Visibility::Public); resolver } - fn new_module( + fn new_local_module( &mut self, parent: Option<Module<'ra>>, kind: ModuleKind, @@ -1618,17 +1616,24 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { span: Span, no_implicit_prelude: bool, ) -> Module<'ra> { - let module_map = &mut self.module_map; - let module_self_bindings = &mut self.module_self_bindings; - self.arenas.new_module( - parent, - kind, - expn_id, - span, - no_implicit_prelude, - module_map, - module_self_bindings, - ) + let module = self.arenas.new_module(parent, kind, expn_id, span, no_implicit_prelude); + if let Some(def_id) = module.opt_def_id() { + self.local_module_map.insert(def_id.expect_local(), module); + } + module + } + + fn new_extern_module( + &self, + parent: Option<Module<'ra>>, + kind: ModuleKind, + expn_id: ExpnId, + span: Span, + no_implicit_prelude: bool, + ) -> Module<'ra> { + let module = self.arenas.new_module(parent, kind, expn_id, span, no_implicit_prelude); + self.extern_module_map.borrow_mut().insert(module.def_id(), module); + module } fn new_local_macro(&mut self, def_id: LocalDefId, macro_data: MacroData) -> &'ra MacroData { @@ -1659,7 +1664,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { Default::default() } - fn feed_visibility(&mut self, feed: Feed<'tcx, LocalDefId>, vis: ty::Visibility) { + fn feed_visibility(&mut self, feed: Feed<'tcx, LocalDefId>, vis: Visibility) { let feed = feed.upgrade(self.tcx); feed.visibility(vis.to_def_id()); self.visibilities_for_hashing.push((feed.def_id(), vis)); @@ -1775,9 +1780,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { let exported_ambiguities = self.tcx.sess.time("compute_effective_visibilities", || { EffectiveVisibilitiesVisitor::compute_effective_visibilities(self, krate) }); - self.tcx.sess.time("check_hidden_glob_reexports", || { - self.check_hidden_glob_reexports(exported_ambiguities) - }); + self.tcx.sess.time("lint_reexports", || self.lint_reexports(exported_ambiguities)); self.tcx .sess .time("finalize_macro_resolutions", || self.finalize_macro_resolutions(krate)); @@ -1837,10 +1840,10 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { ) { module.ensure_traits(self); let traits = module.traits.borrow(); - for (trait_name, trait_binding) in traits.as_ref().unwrap().iter() { - if self.trait_may_have_item(trait_binding.module(), assoc_item) { + for &(trait_name, trait_binding, trait_module) in traits.as_ref().unwrap().iter() { + if self.trait_may_have_item(trait_module, assoc_item) { let def_id = trait_binding.res().def_id(); - let import_ids = self.find_transitive_imports(&trait_binding.kind, *trait_name); + let import_ids = self.find_transitive_imports(&trait_binding.kind, trait_name); found_traits.push(TraitCandidate { def_id, import_ids }); } } @@ -2016,7 +2019,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } } - fn resolve_crate_root(&mut self, ident: Ident) -> Module<'ra> { + fn resolve_crate_root(&self, ident: Ident) -> Module<'ra> { debug!("resolve_crate_root({:?})", ident); let mut ctxt = ident.span.ctxt(); let mark = if ident.name == kw::DollarCrate { @@ -2089,7 +2092,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { module } - fn resolve_self(&mut self, ctxt: &mut SyntaxContext, module: Module<'ra>) -> Module<'ra> { + fn resolve_self(&self, ctxt: &mut SyntaxContext, module: Module<'ra>) -> Module<'ra> { let mut module = self.expect_module(module.nearest_parent_mod()); while module.span.ctxt().normalize_to_macros_2_0() != *ctxt { let parent = module.parent.unwrap_or_else(|| self.expn_def_scope(ctxt.remove_mark())); @@ -2110,11 +2113,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { self.pat_span_map.insert(node, span); } - fn is_accessible_from( - &self, - vis: ty::Visibility<impl Into<DefId>>, - module: Module<'ra>, - ) -> bool { + fn is_accessible_from(&self, vis: Visibility<impl Into<DefId>>, module: Module<'ra>) -> bool { vis.is_accessible_from(module.nearest_parent_mod(), self.tcx) } @@ -2174,9 +2173,8 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } else { self.crate_loader(|c| c.maybe_process_path_extern(ident.name))? }; - let crate_root = self.expect_module(crate_id.as_def_id()); - let vis = ty::Visibility::<DefId>::Public; - (crate_root, vis, DUMMY_SP, LocalExpnId::ROOT).to_name_binding(self.arenas) + let res = Res::Def(DefKind::Mod, crate_id.as_def_id()); + self.arenas.new_pub_res_binding(res, DUMMY_SP, LocalExpnId::ROOT) }) }); diff --git a/compiler/rustc_resolve/src/macros.rs b/compiler/rustc_resolve/src/macros.rs index cbb24289f51..77ef7f56c09 100644 --- a/compiler/rustc_resolve/src/macros.rs +++ b/compiler/rustc_resolve/src/macros.rs @@ -20,7 +20,7 @@ use rustc_expand::expand::{ use rustc_hir::def::{self, DefKind, Namespace, NonMacroAttrKind}; use rustc_hir::def_id::{CrateNum, DefId, LocalDefId}; use rustc_middle::middle::stability; -use rustc_middle::ty::{RegisteredTools, TyCtxt, Visibility}; +use rustc_middle::ty::{RegisteredTools, TyCtxt}; use rustc_session::lint::BuiltinLintDiag; use rustc_session::lint::builtin::{ LEGACY_DERIVE_HELPERS, OUT_OF_SCOPE_MACRO_CALLS, UNKNOWN_DIAGNOSTIC_ATTRIBUTES, @@ -41,7 +41,7 @@ use crate::imports::Import; use crate::{ BindingKey, DeriveData, Determinacy, Finalize, InvocationParent, MacroData, ModuleKind, ModuleOrUniformRoot, NameBinding, NameBindingKind, ParentScope, PathResult, ResolutionError, - Resolver, ScopeSet, Segment, ToNameBinding, Used, + Resolver, ScopeSet, Segment, Used, }; type Res = def::Res<NodeId>; @@ -170,7 +170,7 @@ impl<'ra, 'tcx> ResolverExpand for Resolver<'ra, 'tcx> { self.invocation_parents[&id].parent_def } - fn resolve_dollar_crates(&mut self) { + fn resolve_dollar_crates(&self) { hygiene::update_dollar_crate_names(|ctxt| { let ident = Ident::new(kw::DollarCrate, DUMMY_SP.with_ctxt(ctxt)); match self.resolve_crate_root(ident).kind { @@ -436,8 +436,7 @@ impl<'ra, 'tcx> ResolverExpand for Resolver<'ra, 'tcx> { .iter() .map(|(_, ident)| { let res = Res::NonMacroAttr(NonMacroAttrKind::DeriveHelper); - let binding = (res, Visibility::<DefId>::Public, ident.span, expn_id) - .to_name_binding(self.arenas); + let binding = self.arenas.new_pub_res_binding(res, ident.span, expn_id); (*ident, binding) }) .collect(); @@ -836,7 +835,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { } pub(crate) fn finalize_macro_resolutions(&mut self, krate: &Crate) { - let check_consistency = |this: &mut Self, + let check_consistency = |this: &Self, path: &[Segment], span, kind: MacroKind, diff --git a/compiler/rustc_resolve/src/rustdoc.rs b/compiler/rustc_resolve/src/rustdoc.rs index f61cd1f0adf..24e15ded94f 100644 --- a/compiler/rustc_resolve/src/rustdoc.rs +++ b/compiler/rustc_resolve/src/rustdoc.rs @@ -7,6 +7,7 @@ use pulldown_cmark::{ }; use rustc_ast as ast; use rustc_ast::attr::AttributeExt; +use rustc_ast::join_path_syms; use rustc_ast::util::comments::beautify_doc_string; use rustc_data_structures::fx::FxIndexMap; use rustc_data_structures::unord::UnordSet; @@ -259,7 +260,7 @@ pub fn main_body_opts() -> Options { | Options::ENABLE_SMART_PUNCTUATION } -fn strip_generics_from_path_segment(segment: Vec<char>) -> Result<String, MalformedGenerics> { +fn strip_generics_from_path_segment(segment: Vec<char>) -> Result<Symbol, MalformedGenerics> { let mut stripped_segment = String::new(); let mut param_depth = 0; @@ -284,7 +285,7 @@ fn strip_generics_from_path_segment(segment: Vec<char>) -> Result<String, Malfor } if param_depth == 0 { - Ok(stripped_segment) + Ok(Symbol::intern(&stripped_segment)) } else { // The segment has unbalanced angle brackets, e.g. `Vec<T` or `Vec<T>>` Err(MalformedGenerics::UnbalancedAngleBrackets) @@ -346,9 +347,8 @@ pub fn strip_generics_from_path(path_str: &str) -> Result<Box<str>, MalformedGen debug!("path_str: {path_str:?}\nstripped segments: {stripped_segments:?}"); - let stripped_path = stripped_segments.join("::"); - - if !stripped_path.is_empty() { + if !stripped_segments.is_empty() { + let stripped_path = join_path_syms(stripped_segments); Ok(stripped_path.into()) } else { Err(MalformedGenerics::MissingType) diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs index a91e2140fd4..d6215e1de04 100644 --- a/compiler/rustc_session/src/config.rs +++ b/compiler/rustc_session/src/config.rs @@ -1708,6 +1708,11 @@ impl RustcOptGroup { OptionKind::FlagMulti => options.optflagmulti(short_name, long_name, desc), }; } + + /// This is for diagnostics-only. + pub fn long_name(&self) -> &str { + self.long_name + } } pub fn make_opt( diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs index 626262c8442..2bdde2f887a 100644 --- a/compiler/rustc_session/src/options.rs +++ b/compiler/rustc_session/src/options.rs @@ -2256,6 +2256,8 @@ options! { environment variable `RUSTC_GRAPHVIZ_FONT` (default: `Courier, monospace`)"), has_thread_local: Option<bool> = (None, parse_opt_bool, [TRACKED], "explicitly enable the `cfg(target_thread_local)` directive"), + higher_ranked_assumptions: bool = (false, parse_bool, [TRACKED], + "allow deducing higher-ranked outlives assumptions from coroutines when proving auto traits"), hint_mostly_unused: bool = (false, parse_bool, [TRACKED], "hint that most of this crate will go unused, to minimize work for uncalled functions"), human_readable_cgu_names: bool = (false, parse_bool, [TRACKED], diff --git a/compiler/rustc_session/src/parse.rs b/compiler/rustc_session/src/parse.rs index 0118cdb1fc2..9097b27b86c 100644 --- a/compiler/rustc_session/src/parse.rs +++ b/compiler/rustc_session/src/parse.rs @@ -205,6 +205,46 @@ pub fn add_feature_diagnostics_for_issue<G: EmissionGuarantee>( } } +/// This is only used by unstable_feature_bound as it does not have issue number information for now. +/// This is basically the same as `feature_err_issue` +/// but without the feature issue note. If we can do a lookup for issue number from feature name, +/// then we should directly use `feature_err_issue` for ambiguity error of +/// `#[unstable_feature_bound]`. +#[track_caller] +pub fn feature_err_unstable_feature_bound( + sess: &Session, + feature: Symbol, + span: impl Into<MultiSpan>, + explain: impl Into<DiagMessage>, +) -> Diag<'_> { + let span = span.into(); + + // Cancel an earlier warning for this same error, if it exists. + if let Some(span) = span.primary_span() { + if let Some(err) = sess.dcx().steal_non_err(span, StashKey::EarlySyntaxWarning) { + err.cancel() + } + } + + let mut err = sess.dcx().create_err(FeatureGateError { span, explain: explain.into() }); + + // #23973: do not suggest `#![feature(...)]` if we are in beta/stable + if sess.psess.unstable_features.is_nightly_build() { + err.subdiagnostic(FeatureDiagnosticHelp { feature }); + + if feature == sym::rustc_attrs { + // We're unlikely to stabilize something out of `rustc_attrs` + // without at least renaming it, so pointing out how old + // the compiler is will do little good. + } else if sess.opts.unstable_opts.ui_testing { + err.subdiagnostic(SuggestUpgradeCompiler::ui_testing()); + } else if let Some(suggestion) = SuggestUpgradeCompiler::new() { + err.subdiagnostic(suggestion); + } + } + err +} + /// Info about a parsing session. pub struct ParseSess { dcx: DiagCtxt, diff --git a/compiler/rustc_span/src/def_id.rs b/compiler/rustc_span/src/def_id.rs index 641bac88ad0..77f01548bca 100644 --- a/compiler/rustc_span/src/def_id.rs +++ b/compiler/rustc_span/src/def_id.rs @@ -110,6 +110,7 @@ impl DefPathHash { /// Builds a new [DefPathHash] with the given [StableCrateId] and /// `local_hash`, where `local_hash` must be unique within its crate. + #[inline] pub fn new(stable_crate_id: StableCrateId, local_hash: Hash64) -> DefPathHash { DefPathHash(Fingerprint::new(stable_crate_id.0, local_hash)) } @@ -404,21 +405,21 @@ rustc_data_structures::define_id_collections!( impl<CTX: HashStableContext> HashStable<CTX> for DefId { #[inline] fn hash_stable(&self, hcx: &mut CTX, hasher: &mut StableHasher) { - self.to_stable_hash_key(hcx).hash_stable(hcx, hasher); + hcx.def_path_hash(*self).hash_stable(hcx, hasher); } } impl<CTX: HashStableContext> HashStable<CTX> for LocalDefId { #[inline] fn hash_stable(&self, hcx: &mut CTX, hasher: &mut StableHasher) { - self.to_stable_hash_key(hcx).hash_stable(hcx, hasher); + hcx.def_path_hash(self.to_def_id()).local_hash().hash_stable(hcx, hasher); } } impl<CTX: HashStableContext> HashStable<CTX> for CrateNum { #[inline] fn hash_stable(&self, hcx: &mut CTX, hasher: &mut StableHasher) { - self.to_stable_hash_key(hcx).hash_stable(hcx, hasher); + self.as_def_id().to_stable_hash_key(hcx).stable_crate_id().hash_stable(hcx, hasher); } } @@ -464,30 +465,36 @@ macro_rules! typed_def_id { pub struct $Name(DefId); impl $Name { + #[inline] pub const fn new_unchecked(def_id: DefId) -> Self { Self(def_id) } + #[inline] pub fn to_def_id(self) -> DefId { self.into() } + #[inline] pub fn is_local(self) -> bool { self.0.is_local() } + #[inline] pub fn as_local(self) -> Option<$LocalName> { self.0.as_local().map($LocalName::new_unchecked) } } impl From<$LocalName> for $Name { + #[inline] fn from(local: $LocalName) -> Self { Self(local.0.to_def_id()) } } impl From<$Name> for DefId { + #[inline] fn from(typed: $Name) -> Self { typed.0 } @@ -500,26 +507,31 @@ macro_rules! typed_def_id { impl !PartialOrd for $LocalName {} impl $LocalName { + #[inline] pub const fn new_unchecked(def_id: LocalDefId) -> Self { Self(def_id) } + #[inline] pub fn to_def_id(self) -> DefId { self.0.into() } + #[inline] pub fn to_local_def_id(self) -> LocalDefId { self.0 } } impl From<$LocalName> for LocalDefId { + #[inline] fn from(typed: $LocalName) -> Self { typed.0 } } impl From<$LocalName> for DefId { + #[inline] fn from(typed: $LocalName) -> Self { typed.0.into() } diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index 8b12edf426c..d28a73bc139 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -715,6 +715,7 @@ symbols! { const_indexing, const_let, const_loop, + const_make_global, const_mut_refs, const_panic, const_panic_fmt, @@ -839,6 +840,7 @@ symbols! { derive, derive_coerce_pointee, derive_const, + derive_const_issue: "118304", derive_default_enum, derive_smart_pointer, destruct, @@ -2284,6 +2286,7 @@ symbols! { unsized_locals, unsized_tuple_coercion, unstable, + unstable_feature_bound, unstable_location_reason_default: "this crate is being loaded from the sysroot, an \ unstable location; did you mean to load this crate \ from crates.io via `Cargo.toml` instead?", diff --git a/compiler/rustc_symbol_mangling/src/lib.rs b/compiler/rustc_symbol_mangling/src/lib.rs index a9bf5eae445..6bcb7f6e093 100644 --- a/compiler/rustc_symbol_mangling/src/lib.rs +++ b/compiler/rustc_symbol_mangling/src/lib.rs @@ -180,7 +180,7 @@ fn compute_symbol_name<'tcx>( // FIXME(eddyb) Precompute a custom symbol name based on attributes. let attrs = if tcx.def_kind(def_id).has_codegen_attrs() { - tcx.codegen_fn_attrs(def_id) + &tcx.codegen_instance_attrs(instance.def) } else { CodegenFnAttrs::EMPTY }; diff --git a/compiler/rustc_target/src/spec/targets/mips64_unknown_linux_muslabi64.rs b/compiler/rustc_target/src/spec/targets/mips64_unknown_linux_muslabi64.rs index fd509503053..f95ce756354 100644 --- a/compiler/rustc_target/src/spec/targets/mips64_unknown_linux_muslabi64.rs +++ b/compiler/rustc_target/src/spec/targets/mips64_unknown_linux_muslabi64.rs @@ -5,7 +5,7 @@ use crate::spec::{Target, TargetMetadata, TargetOptions, base}; pub(crate) fn target() -> Target { let mut base = base::linux_musl::opts(); base.cpu = "mips64r2".into(); - base.features = "+mips64r2".into(); + base.features = "+mips64r2,+xgot".into(); base.max_atomic_width = Some(64); Target { // LLVM doesn't recognize "muslabi64" yet. diff --git a/compiler/rustc_target/src/spec/targets/mips64el_unknown_linux_muslabi64.rs b/compiler/rustc_target/src/spec/targets/mips64el_unknown_linux_muslabi64.rs index aa087b1a35a..d42e097b0fd 100644 --- a/compiler/rustc_target/src/spec/targets/mips64el_unknown_linux_muslabi64.rs +++ b/compiler/rustc_target/src/spec/targets/mips64el_unknown_linux_muslabi64.rs @@ -3,7 +3,7 @@ use crate::spec::{Target, TargetMetadata, TargetOptions, base}; pub(crate) fn target() -> Target { let mut base = base::linux_musl::opts(); base.cpu = "mips64r2".into(); - base.features = "+mips64r2".into(); + base.features = "+mips64r2,+xgot".into(); base.max_atomic_width = Some(64); // FIXME(compiler-team#422): musl targets should be dynamically linked by default. base.crt_static_default = true; diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs index bc464b099e2..b9acadc406e 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs @@ -51,6 +51,7 @@ use std::path::PathBuf; use std::{cmp, fmt, iter}; use rustc_abi::ExternAbi; +use rustc_ast::join_path_syms; use rustc_data_structures::fx::{FxIndexMap, FxIndexSet}; use rustc_errors::{ Applicability, Diag, DiagStyledString, IntoDiagArg, MultiSpan, StringPart, pluralize, @@ -73,7 +74,7 @@ use rustc_middle::ty::{ TypeVisitableExt, }; use rustc_span::def_id::LOCAL_CRATE; -use rustc_span::{BytePos, DUMMY_SP, DesugaringKind, Pos, Span, sym}; +use rustc_span::{BytePos, DUMMY_SP, DesugaringKind, Pos, Span, Symbol, sym}; use tracing::{debug, instrument}; use crate::error_reporting::TypeErrCtxt; @@ -225,7 +226,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { struct AbsolutePathPrinter<'tcx> { tcx: TyCtxt<'tcx>, - segments: Vec<String>, + segments: Vec<Symbol>, } impl<'tcx> Printer<'tcx> for AbsolutePathPrinter<'tcx> { @@ -253,7 +254,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { } fn path_crate(&mut self, cnum: CrateNum) -> Result<(), PrintError> { - self.segments = vec![self.tcx.crate_name(cnum).to_string()]; + self.segments = vec![self.tcx.crate_name(cnum)]; Ok(()) } fn path_qualified( @@ -279,7 +280,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { disambiguated_data: &DisambiguatedDefPathData, ) -> Result<(), PrintError> { print_prefix(self)?; - self.segments.push(disambiguated_data.to_string()); + self.segments.push(disambiguated_data.as_sym(true)); Ok(()) } fn path_generic_args( @@ -314,7 +315,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { // known" by the same name, we use the "absolute path" which uses the original // crate name instead. let (expected, found) = if expected_str == found_str { - (expected_abs.join("::"), found_abs.join("::")) + (join_path_syms(&expected_abs), join_path_syms(&found_abs)) } else { (expected_str.clone(), found_str.clone()) }; diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/ambiguity.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/ambiguity.rs index 712e88300ff..98f67257fd1 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/ambiguity.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/ambiguity.rs @@ -12,6 +12,7 @@ use rustc_infer::traits::{ Obligation, ObligationCause, ObligationCauseCode, PolyTraitObligation, PredicateObligation, }; use rustc_middle::ty::{self, Ty, TyCtxt, TypeVisitable as _, TypeVisitableExt as _}; +use rustc_session::parse::feature_err_unstable_feature_bound; use rustc_span::{DUMMY_SP, ErrorGuaranteed, Span}; use tracing::{debug, instrument}; @@ -611,6 +612,30 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { ) .with_span_label(span, format!("cannot normalize `{alias}`")) } + ty::PredicateKind::Clause(ty::ClauseKind::UnstableFeature(sym)) => { + if let Some(e) = self.tainted_by_errors() { + return e; + } + + let mut err; + + if self.tcx.features().staged_api() { + err = self.dcx().struct_span_err( + span, + format!("unstable feature `{sym}` is used without being enabled."), + ); + + err.help(format!("The feature can be enabled by marking the current item with `#[unstable_feature_bound({sym})]`")); + } else { + err = feature_err_unstable_feature_bound( + &self.tcx.sess, + sym, + span, + format!("use of unstable library feature `{sym}`"), + ); + } + err + } _ => { if let Some(e) = self.tainted_by_errors() { diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs index cd3e6c4bc54..1ac309da101 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs @@ -647,6 +647,8 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { | ty::PredicateKind::ConstEquate { .. } // Ambiguous predicates should never error | ty::PredicateKind::Ambiguous + // We never return Err when proving UnstableFeature goal. + | ty::PredicateKind::Clause(ty::ClauseKind::UnstableFeature{ .. }) | ty::PredicateKind::NormalizesTo { .. } | ty::PredicateKind::AliasRelate { .. } | ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType { .. }) => { diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/mod.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/mod.rs index d4cc1ceb280..1d8b934cef3 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/mod.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/mod.rs @@ -453,7 +453,7 @@ pub fn report_dyn_incompatibility<'tcx>( let trait_str = tcx.def_path_str(trait_def_id); let trait_span = tcx.hir_get_if_local(trait_def_id).and_then(|node| match node { hir::Node::Item(item) => match item.kind { - hir::ItemKind::Trait(_, _, ident, ..) | hir::ItemKind::TraitAlias(ident, _, _) => { + hir::ItemKind::Trait(_, _, _, ident, ..) | hir::ItemKind::TraitAlias(ident, _, _) => { Some(ident.span) } _ => unreachable!(), diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs index bd1d29826e6..bf7d4257b62 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs @@ -22,6 +22,7 @@ use rustc_hir::{ expr_needs_parens, is_range_literal, }; use rustc_infer::infer::{BoundRegionConversionTime, DefineOpaqueTypes, InferCtxt, InferOk}; +use rustc_middle::middle::privacy::Level; use rustc_middle::traits::IsConstable; use rustc_middle::ty::error::TypeError; use rustc_middle::ty::print::{ @@ -267,7 +268,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { let node = self.tcx.hir_node_by_def_id(body_id); match node { hir::Node::Item(hir::Item { - kind: hir::ItemKind::Trait(_, _, ident, generics, bounds, _), + kind: hir::ItemKind::Trait(_, _, _, ident, generics, bounds, _), .. }) if self_ty == self.tcx.types.self_param => { assert!(param_ty); @@ -330,7 +331,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { } hir::Node::Item(hir::Item { kind: - hir::ItemKind::Trait(_, _, _, generics, ..) + hir::ItemKind::Trait(_, _, _, _, generics, ..) | hir::ItemKind::Impl(hir::Impl { generics, .. }), .. }) if projection.is_some() => { @@ -354,7 +355,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { hir::ItemKind::Struct(_, generics, _) | hir::ItemKind::Enum(_, generics, _) | hir::ItemKind::Union(_, generics, _) - | hir::ItemKind::Trait(_, _, _, generics, ..) + | hir::ItemKind::Trait(_, _, _, _, generics, ..) | hir::ItemKind::Impl(hir::Impl { generics, .. }) | hir::ItemKind::Fn { generics, .. } | hir::ItemKind::TyAlias(_, generics, _) @@ -414,7 +415,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { hir::ItemKind::Struct(_, generics, _) | hir::ItemKind::Enum(_, generics, _) | hir::ItemKind::Union(_, generics, _) - | hir::ItemKind::Trait(_, _, _, generics, ..) + | hir::ItemKind::Trait(_, _, _, _, generics, ..) | hir::ItemKind::Impl(hir::Impl { generics, .. }) | hir::ItemKind::Fn { generics, .. } | hir::ItemKind::TyAlias(_, generics, _) @@ -2870,11 +2871,20 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { ty::ClauseKind::Trait(trait_pred) => { let def_id = trait_pred.def_id(); let visible_item = if let Some(local) = def_id.as_local() { - // Check for local traits being reachable. - let vis = &tcx.resolutions(()).effective_visibilities; - // Account for non-`pub` traits in the root of the local crate. - let is_locally_reachable = tcx.parent(def_id).is_crate_root(); - vis.is_reachable(local) || is_locally_reachable + let ty = trait_pred.self_ty(); + // when `TraitA: TraitB` and `S` only impl TraitA, + // we check if `TraitB` can be reachable from `S` + // to determine whether to note `TraitA` is sealed trait. + if let ty::Adt(adt, _) = ty.kind() { + let visibilities = tcx.effective_visibilities(()); + visibilities.effective_vis(local).is_none_or(|v| { + v.at_level(Level::Reexported) + .is_accessible_from(adt.did(), tcx) + }) + } else { + // FIXME(xizheyin): if the type is not ADT, we should not suggest it + true + } } else { // Check for foreign traits being reachable. tcx.visible_parent_map(()).get(&def_id).is_some() @@ -3436,7 +3446,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { let mut is_auto_trait = false; match tcx.hir_get_if_local(data.impl_or_alias_def_id) { Some(Node::Item(hir::Item { - kind: hir::ItemKind::Trait(is_auto, _, ident, ..), + kind: hir::ItemKind::Trait(_, is_auto, _, ident, ..), .. })) => { // FIXME: we should do something else so that it works even on crate foreign diff --git a/compiler/rustc_trait_selection/src/errors.rs b/compiler/rustc_trait_selection/src/errors.rs index 90cdf75265d..7901d52dffb 100644 --- a/compiler/rustc_trait_selection/src/errors.rs +++ b/compiler/rustc_trait_selection/src/errors.rs @@ -534,7 +534,7 @@ impl Subdiagnostic for AddLifetimeParamsSuggestion<'_> { match self.tcx.parent_hir_node(self.tcx.local_def_id_to_hir_id(anon_reg.scope)) { hir::Node::Item(hir::Item { - kind: hir::ItemKind::Trait(_, _, _, generics, ..), + kind: hir::ItemKind::Trait(_, _, _, _, generics, ..), .. }) | hir::Node::Item(hir::Item { diff --git a/compiler/rustc_trait_selection/src/infer.rs b/compiler/rustc_trait_selection/src/infer.rs index 0118321befb..7c6b7b14ecb 100644 --- a/compiler/rustc_trait_selection/src/infer.rs +++ b/compiler/rustc_trait_selection/src/infer.rs @@ -33,8 +33,8 @@ impl<'tcx> InferCtxt<'tcx> { let ty = self.resolve_vars_if_possible(ty); // FIXME(#132279): This should be removed as it causes us to incorrectly - // handle opaques in their defining scope. - if !self.next_trait_solver() && !(param_env, ty).has_infer() { + // handle opaques in their defining scope, and stalled coroutines. + if !self.next_trait_solver() && !(param_env, ty).has_infer() && !ty.has_coroutines() { return self.tcx.type_is_copy_modulo_regions(self.typing_env(param_env), ty); } diff --git a/compiler/rustc_trait_selection/src/regions.rs b/compiler/rustc_trait_selection/src/regions.rs index 068e90b00b8..2b33b8ac9f8 100644 --- a/compiler/rustc_trait_selection/src/regions.rs +++ b/compiler/rustc_trait_selection/src/regions.rs @@ -4,7 +4,7 @@ use rustc_infer::infer::{InferCtxt, RegionResolutionError}; use rustc_macros::extension; use rustc_middle::traits::ObligationCause; use rustc_middle::traits::query::NoSolution; -use rustc_middle::ty::{self, Ty}; +use rustc_middle::ty::{self, Ty, elaborate}; use crate::traits::ScrubbedTraitError; use crate::traits::outlives_bounds::InferCtxtExt; @@ -46,6 +46,11 @@ impl<'tcx> OutlivesEnvironment<'tcx> { } } + // FIXME(-Znext-trait-solver): Normalize these. + let higher_ranked_assumptions = infcx.take_registered_region_assumptions(); + let higher_ranked_assumptions = + elaborate::elaborate_outlives_assumptions(infcx.tcx, higher_ranked_assumptions); + // FIXME: This needs to be modified so that we normalize the known type // outlives obligations then elaborate them into their region/type components. // Otherwise, `<W<'a> as Mirror>::Assoc: 'b` will not imply `'a: 'b` even @@ -59,6 +64,7 @@ impl<'tcx> OutlivesEnvironment<'tcx> { assumed_wf_tys, disable_implied_bounds_hack, ), + higher_ranked_assumptions, ) } } diff --git a/compiler/rustc_trait_selection/src/solve.rs b/compiler/rustc_trait_selection/src/solve.rs index 5a5d16167d2..f58961683a9 100644 --- a/compiler/rustc_trait_selection/src/solve.rs +++ b/compiler/rustc_trait_selection/src/solve.rs @@ -7,7 +7,7 @@ mod normalize; mod select; pub(crate) use delegate::SolverDelegate; -pub use fulfill::{FulfillmentCtxt, NextSolverError}; +pub use fulfill::{FulfillmentCtxt, NextSolverError, StalledOnCoroutines}; pub(crate) use normalize::deeply_normalize_for_diagnostics; pub use normalize::{ deeply_normalize, deeply_normalize_with_skipped_universes, diff --git a/compiler/rustc_trait_selection/src/solve/delegate.rs b/compiler/rustc_trait_selection/src/solve/delegate.rs index 1a24254d57f..17429e15cce 100644 --- a/compiler/rustc_trait_selection/src/solve/delegate.rs +++ b/compiler/rustc_trait_selection/src/solve/delegate.rs @@ -206,14 +206,18 @@ impl<'tcx> rustc_next_trait_solver::delegate::SolverDelegate for SolverDelegate< .map(|obligations| obligations.into_iter().map(|obligation| obligation.as_goal()).collect()) } - fn make_deduplicated_outlives_constraints( - &self, - ) -> Vec<ty::OutlivesPredicate<'tcx, ty::GenericArg<'tcx>>> { + fn make_deduplicated_outlives_constraints(&self) -> Vec<ty::ArgOutlivesPredicate<'tcx>> { // Cannot use `take_registered_region_obligations` as we may compute the response // inside of a `probe` whenever we have multiple choices inside of the solver. let region_obligations = self.0.inner.borrow().region_obligations().to_owned(); + let region_assumptions = self.0.inner.borrow().region_assumptions().to_owned(); let region_constraints = self.0.with_region_constraints(|region_constraints| { - make_query_region_constraints(self.tcx, region_obligations, region_constraints) + make_query_region_constraints( + self.tcx, + region_obligations, + region_constraints, + region_assumptions, + ) }); let mut seen = FxHashSet::default(); diff --git a/compiler/rustc_trait_selection/src/solve/fulfill.rs b/compiler/rustc_trait_selection/src/solve/fulfill.rs index d56042a5ca2..3ce0f025512 100644 --- a/compiler/rustc_trait_selection/src/solve/fulfill.rs +++ b/compiler/rustc_trait_selection/src/solve/fulfill.rs @@ -10,7 +10,8 @@ use rustc_infer::traits::{ FromSolverError, PredicateObligation, PredicateObligations, TraitEngine, }; use rustc_middle::ty::{ - self, DelayedSet, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable, TypeVisitor, TypingMode, + self, DelayedSet, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable, TypeVisitableExt, TypeVisitor, + TypingMode, }; use rustc_next_trait_solver::delegate::SolverDelegate as _; use rustc_next_trait_solver::solve::{ @@ -254,7 +255,7 @@ where &mut self, infcx: &InferCtxt<'tcx>, ) -> PredicateObligations<'tcx> { - let stalled_generators = match infcx.typing_mode() { + let stalled_coroutines = match infcx.typing_mode() { TypingMode::Analysis { defining_opaque_types_and_generators } => { defining_opaque_types_and_generators } @@ -264,7 +265,7 @@ where | TypingMode::PostAnalysis => return Default::default(), }; - if stalled_generators.is_empty() { + if stalled_coroutines.is_empty() { return Default::default(); } @@ -275,7 +276,7 @@ where .visit_proof_tree( obl.as_goal(), &mut StalledOnCoroutines { - stalled_generators, + stalled_coroutines, span: obl.cause.span, cache: Default::default(), }, @@ -297,10 +298,10 @@ where /// /// This function can be also return false positives, which will lead to poor diagnostics /// so we want to keep this visitor *precise* too. -struct StalledOnCoroutines<'tcx> { - stalled_generators: &'tcx ty::List<LocalDefId>, - span: Span, - cache: DelayedSet<Ty<'tcx>>, +pub struct StalledOnCoroutines<'tcx> { + pub stalled_coroutines: &'tcx ty::List<LocalDefId>, + pub span: Span, + pub cache: DelayedSet<Ty<'tcx>>, } impl<'tcx> inspect::ProofTreeVisitor<'tcx> for StalledOnCoroutines<'tcx> { @@ -330,12 +331,14 @@ impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for StalledOnCoroutines<'tcx> { } if let ty::CoroutineWitness(def_id, _) = *ty.kind() - && def_id.as_local().is_some_and(|def_id| self.stalled_generators.contains(&def_id)) + && def_id.as_local().is_some_and(|def_id| self.stalled_coroutines.contains(&def_id)) { - return ControlFlow::Break(()); + ControlFlow::Break(()) + } else if ty.has_coroutines() { + ty.super_visit_with(self) + } else { + ControlFlow::Continue(()) } - - ty.super_visit_with(self) } } diff --git a/compiler/rustc_trait_selection/src/traits/auto_trait.rs b/compiler/rustc_trait_selection/src/traits/auto_trait.rs index 3ae908ec16b..759db1d18c0 100644 --- a/compiler/rustc_trait_selection/src/traits/auto_trait.rs +++ b/compiler/rustc_trait_selection/src/traits/auto_trait.rs @@ -800,6 +800,7 @@ impl<'tcx> AutoTraitFinder<'tcx> { // FIXME(generic_const_exprs): you can absolutely add this as a where clauses | ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(..)) | ty::PredicateKind::Coerce(..) + | ty::PredicateKind::Clause(ty::ClauseKind::UnstableFeature(_)) | ty::PredicateKind::Clause(ty::ClauseKind::HostEffect(..)) => {} ty::PredicateKind::Ambiguous => return false, }; diff --git a/compiler/rustc_trait_selection/src/traits/coherence.rs b/compiler/rustc_trait_selection/src/traits/coherence.rs index ce5a4edeaaa..f50f01a285b 100644 --- a/compiler/rustc_trait_selection/src/traits/coherence.rs +++ b/compiler/rustc_trait_selection/src/traits/coherence.rs @@ -461,6 +461,7 @@ fn impl_intersection_has_negative_obligation( // requirements, when proving the negated where clauses below. drop(equate_obligations); drop(infcx.take_registered_region_obligations()); + drop(infcx.take_registered_region_assumptions()); drop(infcx.take_and_reset_region_constraints()); plug_infer_with_placeholders( diff --git a/compiler/rustc_trait_selection/src/traits/dyn_compatibility.rs b/compiler/rustc_trait_selection/src/traits/dyn_compatibility.rs index 9a4f3887bbb..ea1eed95723 100644 --- a/compiler/rustc_trait_selection/src/traits/dyn_compatibility.rs +++ b/compiler/rustc_trait_selection/src/traits/dyn_compatibility.rs @@ -238,6 +238,7 @@ fn predicate_references_self<'tcx>( // FIXME(generic_const_exprs): this can mention `Self` | ty::ClauseKind::ConstEvaluatable(..) | ty::ClauseKind::HostEffect(..) + | ty::ClauseKind::UnstableFeature(_) => None, } } @@ -278,6 +279,7 @@ fn generics_require_sized_self(tcx: TyCtxt<'_>, def_id: DefId) -> bool { | ty::ClauseKind::ConstArgHasType(_, _) | ty::ClauseKind::WellFormed(_) | ty::ClauseKind::ConstEvaluatable(_) + | ty::ClauseKind::UnstableFeature(_) | ty::ClauseKind::HostEffect(..) => false, }) } diff --git a/compiler/rustc_trait_selection/src/traits/fulfill.rs b/compiler/rustc_trait_selection/src/traits/fulfill.rs index 64a51e0550b..e35f89358e9 100644 --- a/compiler/rustc_trait_selection/src/traits/fulfill.rs +++ b/compiler/rustc_trait_selection/src/traits/fulfill.rs @@ -3,6 +3,7 @@ use std::marker::PhantomData; use rustc_data_structures::obligation_forest::{ Error, ForestObligation, ObligationForest, ObligationProcessor, Outcome, ProcessResult, }; +use rustc_hir::def_id::LocalDefId; use rustc_infer::infer::DefineOpaqueTypes; use rustc_infer::traits::{ FromSolverError, PolyTraitObligation, PredicateObligations, ProjectionCacheKey, SelectionError, @@ -11,7 +12,11 @@ use rustc_infer::traits::{ use rustc_middle::bug; use rustc_middle::ty::abstract_const::NotConstEvaluatable; use rustc_middle::ty::error::{ExpectedFound, TypeError}; -use rustc_middle::ty::{self, Binder, Const, GenericArgsRef, TypeVisitableExt, TypingMode}; +use rustc_middle::ty::{ + self, Binder, Const, GenericArgsRef, TypeVisitable, TypeVisitableExt, TypingMode, + may_use_unstable_feature, +}; +use rustc_span::DUMMY_SP; use thin_vec::{ThinVec, thin_vec}; use tracing::{debug, debug_span, instrument}; @@ -24,6 +29,7 @@ use super::{ }; use crate::error_reporting::InferCtxtErrorExt; use crate::infer::{InferCtxt, TyOrConstInferVar}; +use crate::solve::StalledOnCoroutines; use crate::traits::normalize::normalize_with_depth_to; use crate::traits::project::{PolyProjectionObligation, ProjectionCacheKeyExt as _}; use crate::traits::query::evaluate_obligation::InferCtxtExt; @@ -166,8 +172,25 @@ where &mut self, infcx: &InferCtxt<'tcx>, ) -> PredicateObligations<'tcx> { - let mut processor = - DrainProcessor { removed_predicates: PredicateObligations::new(), infcx }; + let stalled_coroutines = match infcx.typing_mode() { + TypingMode::Analysis { defining_opaque_types_and_generators } => { + defining_opaque_types_and_generators + } + TypingMode::Coherence + | TypingMode::Borrowck { defining_opaque_types: _ } + | TypingMode::PostBorrowckAnalysis { defined_opaque_types: _ } + | TypingMode::PostAnalysis => return Default::default(), + }; + + if stalled_coroutines.is_empty() { + return Default::default(); + } + + let mut processor = DrainProcessor { + infcx, + removed_predicates: PredicateObligations::new(), + stalled_coroutines, + }; let outcome: Outcome<_, _> = self.predicates.process_obligations(&mut processor); assert!(outcome.errors.is_empty()); return processor.removed_predicates; @@ -175,6 +198,7 @@ where struct DrainProcessor<'a, 'tcx> { infcx: &'a InferCtxt<'tcx>, removed_predicates: PredicateObligations<'tcx>, + stalled_coroutines: &'tcx ty::List<LocalDefId>, } impl<'tcx> ObligationProcessor for DrainProcessor<'_, 'tcx> { @@ -183,10 +207,14 @@ where type OUT = Outcome<Self::Obligation, Self::Error>; fn needs_process_obligation(&self, pending_obligation: &Self::Obligation) -> bool { - pending_obligation - .stalled_on - .iter() - .any(|&var| self.infcx.ty_or_const_infer_var_changed(var)) + self.infcx + .resolve_vars_if_possible(pending_obligation.obligation.predicate) + .visit_with(&mut StalledOnCoroutines { + stalled_coroutines: self.stalled_coroutines, + span: DUMMY_SP, + cache: Default::default(), + }) + .is_break() } fn process_obligation( @@ -404,6 +432,9 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> { ty::PredicateKind::AliasRelate(..) => { bug!("AliasRelate is only used by the new solver") } + ty::PredicateKind::Clause(ty::ClauseKind::UnstableFeature(_)) => { + unreachable!("unexpected higher ranked `UnstableFeature` goal") + } }, Some(pred) => match pred { ty::PredicateKind::Clause(ty::ClauseKind::Trait(data)) => { @@ -767,6 +798,13 @@ impl<'a, 'tcx> ObligationProcessor for FulfillProcessor<'a, 'tcx> { } } } + ty::PredicateKind::Clause(ty::ClauseKind::UnstableFeature(symbol)) => { + if may_use_unstable_feature(self.selcx.infcx, obligation.param_env, symbol) { + ProcessResult::Changed(Default::default()) + } else { + ProcessResult::Unchanged + } + } }, } } diff --git a/compiler/rustc_trait_selection/src/traits/outlives_bounds.rs b/compiler/rustc_trait_selection/src/traits/outlives_bounds.rs index 59d3ac21387..53518038f8d 100644 --- a/compiler/rustc_trait_selection/src/traits/outlives_bounds.rs +++ b/compiler/rustc_trait_selection/src/traits/outlives_bounds.rs @@ -78,7 +78,10 @@ fn implied_outlives_bounds<'a, 'tcx>( bounds.retain(|bound| !bound.has_placeholders()); if !constraints.is_empty() { - let QueryRegionConstraints { outlives } = constraints; + // FIXME(higher_ranked_auto): Should we register assumptions here? + // We otherwise would get spurious errors if normalizing an implied + // outlives bound required proving some higher-ranked coroutine obl. + let QueryRegionConstraints { outlives, assumptions: _ } = constraints; let cause = ObligationCause::misc(span, body_id); for &(predicate, _) in &outlives { infcx.register_outlives_constraint(predicate, &cause); diff --git a/compiler/rustc_trait_selection/src/traits/query/type_op/custom.rs b/compiler/rustc_trait_selection/src/traits/query/type_op/custom.rs index 3b549244431..f027ba1c5cb 100644 --- a/compiler/rustc_trait_selection/src/traits/query/type_op/custom.rs +++ b/compiler/rustc_trait_selection/src/traits/query/type_op/custom.rs @@ -80,6 +80,11 @@ where pre_obligations.is_empty(), "scrape_region_constraints: incoming region obligations = {pre_obligations:#?}", ); + let pre_assumptions = infcx.take_registered_region_assumptions(); + assert!( + pre_assumptions.is_empty(), + "scrape_region_constraints: incoming region assumptions = {pre_assumptions:#?}", + ); let value = infcx.commit_if_ok(|_| { let ocx = ObligationCtxt::new(infcx); @@ -100,11 +105,13 @@ where let value = infcx.resolve_vars_if_possible(value); let region_obligations = infcx.take_registered_region_obligations(); + let region_assumptions = infcx.take_registered_region_assumptions(); let region_constraint_data = infcx.take_and_reset_region_constraints(); let region_constraints = query_response::make_query_region_constraints( infcx.tcx, region_obligations, ®ion_constraint_data, + region_assumptions, ); if region_constraints.is_empty() { diff --git a/compiler/rustc_trait_selection/src/traits/query/type_op/implied_outlives_bounds.rs b/compiler/rustc_trait_selection/src/traits/query/type_op/implied_outlives_bounds.rs index e294f7839aa..7540cbe3fd1 100644 --- a/compiler/rustc_trait_selection/src/traits/query/type_op/implied_outlives_bounds.rs +++ b/compiler/rustc_trait_selection/src/traits/query/type_op/implied_outlives_bounds.rs @@ -110,6 +110,7 @@ pub fn compute_implied_outlives_bounds_inner<'tcx>( | ty::PredicateKind::ConstEquate(..) | ty::PredicateKind::Ambiguous | ty::PredicateKind::NormalizesTo(..) + | ty::PredicateKind::Clause(ty::ClauseKind::UnstableFeature(_)) | ty::PredicateKind::AliasRelate(..) => {} // We need to search through *all* WellFormed predicates diff --git a/compiler/rustc_trait_selection/src/traits/query/type_op/mod.rs b/compiler/rustc_trait_selection/src/traits/query/type_op/mod.rs index 4bdf04311a0..018e9748cf0 100644 --- a/compiler/rustc_trait_selection/src/traits/query/type_op/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/query/type_op/mod.rs @@ -180,8 +180,9 @@ where span, )?; output.error_info = error_info; - if let Some(QueryRegionConstraints { outlives }) = output.constraints { + if let Some(QueryRegionConstraints { outlives, assumptions }) = output.constraints { region_constraints.outlives.extend(outlives.iter().cloned()); + region_constraints.assumptions.extend(assumptions.iter().cloned()); } output.constraints = if region_constraints.is_empty() { None 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 cc188a280aa..2c7089507a8 100644 --- a/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs +++ b/compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs @@ -842,6 +842,14 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { } } + ty::CoroutineWitness(def_id, _) => { + if self.should_stall_coroutine_witness(def_id) { + candidates.ambiguous = true; + } else { + candidates.vec.push(AutoImplCandidate); + } + } + ty::Bool | ty::Char | ty::Int(_) @@ -861,7 +869,6 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { | ty::Coroutine(..) | ty::Never | ty::Tuple(_) - | ty::CoroutineWitness(..) | ty::UnsafeBinder(_) => { // Only consider auto impls of unsafe traits when there are // no unsafe fields. @@ -1119,12 +1126,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { match *self_ty.kind() { // These impls are built-in because we cannot express sufficiently // generic impls in libcore. - ty::FnDef(..) - | ty::FnPtr(..) - | ty::Error(_) - | ty::Tuple(..) - | ty::CoroutineWitness(..) - | ty::Pat(..) => { + ty::FnDef(..) | ty::FnPtr(..) | ty::Error(_) | ty::Tuple(..) | ty::Pat(..) => { candidates.vec.push(BuiltinCandidate); } @@ -1192,6 +1194,14 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { } } + ty::CoroutineWitness(coroutine_def_id, _) => { + if self.should_stall_coroutine_witness(coroutine_def_id) { + candidates.ambiguous = true; + } else { + candidates.vec.push(SizedCandidate); + } + } + // Fallback to whatever user-defined impls or param-env clauses exist in this case. ty::Adt(..) | ty::Alias(..) | ty::Param(..) | ty::Placeholder(..) => {} @@ -1229,7 +1239,6 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { | ty::Char | ty::Ref(..) | ty::Coroutine(..) - | ty::CoroutineWitness(..) | ty::Array(..) | ty::Closure(..) | ty::CoroutineClosure(..) @@ -1238,6 +1247,14 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { candidates.vec.push(SizedCandidate); } + ty::CoroutineWitness(coroutine_def_id, _) => { + if self.should_stall_coroutine_witness(coroutine_def_id) { + candidates.ambiguous = true; + } else { + candidates.vec.push(SizedCandidate); + } + } + // Conditionally `Sized`. ty::Tuple(..) | ty::Pat(..) | ty::Adt(..) | ty::UnsafeBinder(_) => { candidates.vec.push(SizedCandidate); diff --git a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs index ee8cef20279..488094b15ac 100644 --- a/compiler/rustc_trait_selection/src/traits/select/confirmation.rs +++ b/compiler/rustc_trait_selection/src/traits/select/confirmation.rs @@ -411,18 +411,33 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { obligation.predicate.self_ty().map_bound(|ty| self.infcx.shallow_resolve(ty)); let self_ty = self.infcx.enter_forall_and_leak_universe(self_ty); - let types = self.constituent_types_for_ty(self_ty)?; - let types = self.infcx.enter_forall_and_leak_universe(types); + let constituents = self.constituent_types_for_auto_trait(self_ty)?; + let constituents = self.infcx.enter_forall_and_leak_universe(constituents); let cause = obligation.derived_cause(ObligationCauseCode::BuiltinDerived); - let obligations = self.collect_predicates_for_types( + let mut obligations = self.collect_predicates_for_types( obligation.param_env, - cause, + cause.clone(), obligation.recursion_depth + 1, obligation.predicate.def_id(), - types, + constituents.types, ); + // FIXME(coroutine_clone): We could uplift this into `collect_predicates_for_types` + // and do this for `Copy`/`Clone` too, but that's feature-gated so it doesn't really + // matter yet. + for assumption in constituents.assumptions { + let assumption = normalize_with_depth_to( + self, + obligation.param_env, + cause.clone(), + obligation.recursion_depth + 1, + assumption, + &mut obligations, + ); + self.infcx.register_region_assumption(assumption); + } + Ok(obligations) }) } diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs index 2e65750db25..2b563c5b8d5 100644 --- a/compiler/rustc_trait_selection/src/traits/select/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs @@ -20,6 +20,7 @@ use rustc_infer::infer::DefineOpaqueTypes; use rustc_infer::infer::at::ToTrace; use rustc_infer::infer::relate::TypeRelation; use rustc_infer::traits::{PredicateObligations, TraitObligation}; +use rustc_macros::{TypeFoldable, TypeVisitable}; use rustc_middle::bug; use rustc_middle::dep_graph::{DepNodeIndex, dep_kinds}; pub use rustc_middle::traits::select::*; @@ -28,7 +29,7 @@ use rustc_middle::ty::error::TypeErrorToStringExt; use rustc_middle::ty::print::{PrintTraitRefExt as _, with_no_trimmed_paths}; use rustc_middle::ty::{ self, DeepRejectCtxt, GenericArgsRef, PolyProjectionPredicate, SizedTraitKind, Ty, TyCtxt, - TypeFoldable, TypeVisitableExt, TypingMode, Upcast, elaborate, + TypeFoldable, TypeVisitableExt, TypingMode, Upcast, elaborate, may_use_unstable_feature, }; use rustc_span::{Symbol, sym}; use tracing::{debug, instrument, trace}; @@ -832,6 +833,14 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { } } + ty::PredicateKind::Clause(ty::ClauseKind::UnstableFeature(symbol)) => { + if may_use_unstable_feature(self.infcx, obligation.param_env, symbol) { + Ok(EvaluatedToOk) + } else { + Ok(EvaluatedToAmbig) + } + } + ty::PredicateKind::Clause(ty::ClauseKind::ConstEvaluatable(uv)) => { match const_evaluatable::is_const_evaluatable( self.infcx, @@ -1504,7 +1513,8 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { defining_opaque_types_and_generators: defining_opaque_types, } | TypingMode::Borrowck { defining_opaque_types } => { - defining_opaque_types.is_empty() || !pred.has_opaque_types() + defining_opaque_types.is_empty() + || (!pred.has_opaque_types() && !pred.has_coroutines()) } // The hidden types of `defined_opaque_types` is not local to the current // inference context, so we can freely move this to the global cache. @@ -2247,10 +2257,10 @@ impl<'tcx> SelectionContext<'_, 'tcx> { /// Zed<i32> where enum Zed { A(T), B(u32) } -> [i32, u32] /// ``` #[instrument(level = "debug", skip(self), ret)] - fn constituent_types_for_ty( + fn constituent_types_for_auto_trait( &self, t: Ty<'tcx>, - ) -> Result<ty::Binder<'tcx, Vec<Ty<'tcx>>>, SelectionError<'tcx>> { + ) -> Result<ty::Binder<'tcx, AutoImplConstituents<'tcx>>, SelectionError<'tcx>> { Ok(match *t.kind() { ty::Uint(_) | ty::Int(_) @@ -2261,17 +2271,26 @@ impl<'tcx> SelectionContext<'_, 'tcx> { | ty::Error(_) | ty::Infer(ty::IntVar(_) | ty::FloatVar(_)) | ty::Never - | ty::Char => ty::Binder::dummy(Vec::new()), + | ty::Char => { + ty::Binder::dummy(AutoImplConstituents { types: vec![], assumptions: vec![] }) + } // This branch is only for `experimental_default_bounds`. // Other foreign types were rejected earlier in // `assemble_candidates_from_auto_impls`. - ty::Foreign(..) => ty::Binder::dummy(Vec::new()), + ty::Foreign(..) => { + ty::Binder::dummy(AutoImplConstituents { types: vec![], assumptions: vec![] }) + } - ty::UnsafeBinder(ty) => ty.map_bound(|ty| vec![ty]), + ty::UnsafeBinder(ty) => { + ty.map_bound(|ty| AutoImplConstituents { types: vec![ty], assumptions: vec![] }) + } // Treat this like `struct str([u8]);` - ty::Str => ty::Binder::dummy(vec![Ty::new_slice(self.tcx(), self.tcx().types.u8)]), + ty::Str => ty::Binder::dummy(AutoImplConstituents { + types: vec![Ty::new_slice(self.tcx(), self.tcx().types.u8)], + assumptions: vec![], + }), ty::Placeholder(..) | ty::Dynamic(..) @@ -2283,30 +2302,41 @@ impl<'tcx> SelectionContext<'_, 'tcx> { } ty::RawPtr(element_ty, _) | ty::Ref(_, element_ty, _) => { - ty::Binder::dummy(vec![element_ty]) + ty::Binder::dummy(AutoImplConstituents { + types: vec![element_ty], + assumptions: vec![], + }) } - ty::Pat(ty, _) | ty::Array(ty, _) | ty::Slice(ty) => ty::Binder::dummy(vec![ty]), + ty::Pat(ty, _) | ty::Array(ty, _) | ty::Slice(ty) => { + ty::Binder::dummy(AutoImplConstituents { types: vec![ty], assumptions: vec![] }) + } ty::Tuple(tys) => { // (T1, ..., Tn) -- meets any bound that all of T1...Tn meet - ty::Binder::dummy(tys.iter().collect()) + ty::Binder::dummy(AutoImplConstituents { + types: tys.iter().collect(), + assumptions: vec![], + }) } ty::Closure(_, args) => { let ty = self.infcx.shallow_resolve(args.as_closure().tupled_upvars_ty()); - ty::Binder::dummy(vec![ty]) + ty::Binder::dummy(AutoImplConstituents { types: vec![ty], assumptions: vec![] }) } ty::CoroutineClosure(_, args) => { let ty = self.infcx.shallow_resolve(args.as_coroutine_closure().tupled_upvars_ty()); - ty::Binder::dummy(vec![ty]) + ty::Binder::dummy(AutoImplConstituents { types: vec![ty], assumptions: vec![] }) } ty::Coroutine(_, args) => { let ty = self.infcx.shallow_resolve(args.as_coroutine().tupled_upvars_ty()); let witness = args.as_coroutine().witness(); - ty::Binder::dummy([ty].into_iter().chain(iter::once(witness)).collect()) + ty::Binder::dummy(AutoImplConstituents { + types: [ty].into_iter().chain(iter::once(witness)).collect(), + assumptions: vec![], + }) } ty::CoroutineWitness(def_id, args) => self @@ -2314,16 +2344,23 @@ impl<'tcx> SelectionContext<'_, 'tcx> { .tcx .coroutine_hidden_types(def_id) .instantiate(self.infcx.tcx, args) - .map_bound(|witness| witness.types.to_vec()), + .map_bound(|witness| AutoImplConstituents { + types: witness.types.to_vec(), + assumptions: witness.assumptions.to_vec(), + }), // For `PhantomData<T>`, we pass `T`. ty::Adt(def, args) if def.is_phantom_data() => { - ty::Binder::dummy(args.types().collect()) + ty::Binder::dummy(AutoImplConstituents { + types: args.types().collect(), + assumptions: vec![], + }) } - ty::Adt(def, args) => { - ty::Binder::dummy(def.all_fields().map(|f| f.ty(self.tcx(), args)).collect()) - } + ty::Adt(def, args) => ty::Binder::dummy(AutoImplConstituents { + types: def.all_fields().map(|f| f.ty(self.tcx(), args)).collect(), + assumptions: vec![], + }), ty::Alias(ty::Opaque, ty::AliasTy { def_id, args, .. }) => { if self.infcx.can_define_opaque_ty(def_id) { @@ -2333,7 +2370,10 @@ impl<'tcx> SelectionContext<'_, 'tcx> { // which enforces a DAG between the functions requiring // the auto trait bounds in question. match self.tcx().type_of_opaque(def_id) { - Ok(ty) => ty::Binder::dummy(vec![ty.instantiate(self.tcx(), args)]), + Ok(ty) => ty::Binder::dummy(AutoImplConstituents { + types: vec![ty.instantiate(self.tcx(), args)], + assumptions: vec![], + }), Err(_) => { return Err(SelectionError::OpaqueTypeAutoTraitLeakageUnknown(def_id)); } @@ -2803,6 +2843,18 @@ impl<'tcx> SelectionContext<'_, 'tcx> { obligations } + + fn should_stall_coroutine_witness(&self, def_id: DefId) -> bool { + match self.infcx.typing_mode() { + TypingMode::Analysis { defining_opaque_types_and_generators: stalled_generators } => { + def_id.as_local().is_some_and(|def_id| stalled_generators.contains(&def_id)) + } + TypingMode::Coherence + | TypingMode::PostAnalysis + | TypingMode::Borrowck { defining_opaque_types: _ } + | TypingMode::PostBorrowckAnalysis { defined_opaque_types: _ } => false, + } + } } impl<'o, 'tcx> TraitObligationStack<'o, 'tcx> { @@ -3113,3 +3165,9 @@ pub(crate) enum ProjectionMatchesProjection { Ambiguous, No, } + +#[derive(Clone, Debug, TypeFoldable, TypeVisitable)] +pub(crate) struct AutoImplConstituents<'tcx> { + pub types: Vec<Ty<'tcx>>, + pub assumptions: Vec<ty::ArgOutlivesPredicate<'tcx>>, +} diff --git a/compiler/rustc_trait_selection/src/traits/util.rs b/compiler/rustc_trait_selection/src/traits/util.rs index 141454bfe37..0c14b124e25 100644 --- a/compiler/rustc_trait_selection/src/traits/util.rs +++ b/compiler/rustc_trait_selection/src/traits/util.rs @@ -80,6 +80,7 @@ pub fn expand_trait_aliases<'tcx>( | ty::ClauseKind::ConstArgHasType(_, _) | ty::ClauseKind::WellFormed(_) | ty::ClauseKind::ConstEvaluatable(_) + | ty::ClauseKind::UnstableFeature(_) | ty::ClauseKind::HostEffect(..) => {} } } @@ -378,6 +379,13 @@ pub fn sizedness_fast_path<'tcx>(tcx: TyCtxt<'tcx>, predicate: ty::Predicate<'tc _ => return false, }; + // FIXME(sized_hierarchy): this temporarily reverts the `sized_hierarchy` feature + // while a proper fix for `tests/ui/sized-hierarchy/incomplete-inference-issue-143992.rs` + // is pending a proper fix + if !tcx.features().sized_hierarchy() && matches!(sizedness, SizedTraitKind::MetaSized) { + return true; + } + if trait_pred.self_ty().has_trivial_sizedness(tcx, sizedness) { debug!("fast path -- trivial sizedness"); return true; diff --git a/compiler/rustc_trait_selection/src/traits/wf.rs b/compiler/rustc_trait_selection/src/traits/wf.rs index fed9f254cdf..adce9850b59 100644 --- a/compiler/rustc_trait_selection/src/traits/wf.rs +++ b/compiler/rustc_trait_selection/src/traits/wf.rs @@ -197,6 +197,7 @@ pub fn clause_obligations<'tcx>( ty::ClauseKind::ConstEvaluatable(ct) => { wf.add_wf_preds_for_term(ct.into()); } + ty::ClauseKind::UnstableFeature(_) => {} } wf.normalize(infcx) @@ -1095,6 +1096,7 @@ pub fn object_region_bounds<'tcx>( | ty::ClauseKind::Projection(_) | ty::ClauseKind::ConstArgHasType(_, _) | ty::ClauseKind::WellFormed(_) + | ty::ClauseKind::UnstableFeature(_) | ty::ClauseKind::ConstEvaluatable(_) => None, } }) diff --git a/compiler/rustc_traits/src/coroutine_witnesses.rs b/compiler/rustc_traits/src/coroutine_witnesses.rs index 447e13126cc..87d17f3e131 100644 --- a/compiler/rustc_traits/src/coroutine_witnesses.rs +++ b/compiler/rustc_traits/src/coroutine_witnesses.rs @@ -1,5 +1,10 @@ use rustc_hir::def_id::DefId; -use rustc_middle::ty::{self, TyCtxt, fold_regions}; +use rustc_infer::infer::TyCtxtInferExt; +use rustc_infer::infer::canonical::query_response::make_query_region_constraints; +use rustc_infer::infer::resolve::OpportunisticRegionResolver; +use rustc_infer::traits::{Obligation, ObligationCause}; +use rustc_middle::ty::{self, Ty, TyCtxt, TypeFoldable, TypeVisitableExt, fold_regions}; +use rustc_trait_selection::traits::{ObligationCtxt, with_replaced_escaping_bound_vars}; /// Return the set of types that should be taken into account when checking /// trait bounds on a coroutine's internal state. This properly replaces @@ -30,8 +35,57 @@ pub(crate) fn coroutine_hidden_types<'tcx>( }), ); + let assumptions = compute_assumptions(tcx, def_id, bound_tys); + ty::EarlyBinder::bind(ty::Binder::bind_with_vars( - ty::CoroutineWitnessTypes { types: bound_tys }, + ty::CoroutineWitnessTypes { types: bound_tys, assumptions }, tcx.mk_bound_variable_kinds(&vars), )) } + +fn compute_assumptions<'tcx>( + tcx: TyCtxt<'tcx>, + def_id: DefId, + bound_tys: &'tcx ty::List<Ty<'tcx>>, +) -> &'tcx ty::List<ty::ArgOutlivesPredicate<'tcx>> { + let infcx = tcx.infer_ctxt().build(ty::TypingMode::Analysis { + defining_opaque_types_and_generators: ty::List::empty(), + }); + with_replaced_escaping_bound_vars(&infcx, &mut vec![None], bound_tys, |bound_tys| { + let param_env = tcx.param_env(def_id); + let ocx = ObligationCtxt::new(&infcx); + + ocx.register_obligations(bound_tys.iter().map(|ty| { + Obligation::new( + tcx, + ObligationCause::dummy(), + param_env, + ty::ClauseKind::WellFormed(ty.into()), + ) + })); + let _errors = ocx.select_all_or_error(); + + let region_obligations = infcx.take_registered_region_obligations(); + let region_assumptions = infcx.take_registered_region_assumptions(); + let region_constraints = infcx.take_and_reset_region_constraints(); + + let outlives = make_query_region_constraints( + tcx, + region_obligations, + ®ion_constraints, + region_assumptions, + ) + .outlives + .fold_with(&mut OpportunisticRegionResolver::new(&infcx)); + + tcx.mk_outlives_from_iter( + outlives + .into_iter() + .map(|(o, _)| o) + // FIXME(higher_ranked_auto): We probably should deeply resolve these before + // filtering out infers which only correspond to unconstrained infer regions + // which we can sometimes get. + .filter(|o| !o.has_infer()), + ) + }) +} diff --git a/compiler/rustc_traits/src/normalize_erasing_regions.rs b/compiler/rustc_traits/src/normalize_erasing_regions.rs index 68ff66bbce7..c1b848a2e79 100644 --- a/compiler/rustc_traits/src/normalize_erasing_regions.rs +++ b/compiler/rustc_traits/src/normalize_erasing_regions.rs @@ -57,6 +57,7 @@ fn not_outlives_predicate(p: ty::Predicate<'_>) -> bool { | ty::PredicateKind::Clause(ty::ClauseKind::Projection(..)) | ty::PredicateKind::Clause(ty::ClauseKind::HostEffect(..)) | ty::PredicateKind::Clause(ty::ClauseKind::ConstArgHasType(..)) + | ty::PredicateKind::Clause(ty::ClauseKind::UnstableFeature(_)) | ty::PredicateKind::NormalizesTo(..) | ty::PredicateKind::AliasRelate(..) | ty::PredicateKind::Clause(ty::ClauseKind::WellFormed(..)) diff --git a/compiler/rustc_ty_utils/src/opaque_types.rs b/compiler/rustc_ty_utils/src/opaque_types.rs index 3b313edea6f..4a7263d0ccd 100644 --- a/compiler/rustc_ty_utils/src/opaque_types.rs +++ b/compiler/rustc_ty_utils/src/opaque_types.rs @@ -223,7 +223,10 @@ impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for OpaqueTypeCollector<'tcx> { } // Skips type aliases, as they are meant to be transparent. // FIXME(type_alias_impl_trait): can we require mentioning nested type aliases explicitly? - ty::Alias(ty::Free, alias_ty) if alias_ty.def_id.is_local() => { + ty::Alias(ty::Free, alias_ty) if let Some(def_id) = alias_ty.def_id.as_local() => { + if !self.seen.insert(def_id) { + return; + } self.tcx .type_of(alias_ty.def_id) .instantiate(self.tcx, alias_ty.args) @@ -256,16 +259,16 @@ impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for OpaqueTypeCollector<'tcx> { return; } - let impl_args = alias_ty.args.rebase_onto( + let alias_args = alias_ty.args.rebase_onto( self.tcx, impl_trait_ref.def_id, ty::GenericArgs::identity_for_item(self.tcx, parent), ); - if self.tcx.check_args_compatible(assoc.def_id, impl_args) { + if self.tcx.check_args_compatible(assoc.def_id, alias_args) { self.tcx .type_of(assoc.def_id) - .instantiate(self.tcx, impl_args) + .instantiate(self.tcx, alias_args) .visit_with(self); return; } else { diff --git a/compiler/rustc_type_ir/src/elaborate.rs b/compiler/rustc_type_ir/src/elaborate.rs index 7ffcf7b5d96..dc15cc3eb55 100644 --- a/compiler/rustc_type_ir/src/elaborate.rs +++ b/compiler/rustc_type_ir/src/elaborate.rs @@ -234,6 +234,9 @@ impl<I: Interner, O: Elaboratable<I>> Elaborator<I, O> { ty::ClauseKind::ConstArgHasType(..) => { // Nothing to elaborate } + ty::ClauseKind::UnstableFeature(_) => { + // Nothing to elaborate + } } } } @@ -368,3 +371,54 @@ impl<I: Interner, It: Iterator<Item = I::Clause>> Iterator for FilterToTraits<I, (0, upper) } } + +pub fn elaborate_outlives_assumptions<I: Interner>( + cx: I, + assumptions: impl IntoIterator<Item = ty::OutlivesPredicate<I, I::GenericArg>>, +) -> HashSet<ty::OutlivesPredicate<I, I::GenericArg>> { + let mut collected = HashSet::default(); + + for ty::OutlivesPredicate(arg1, r2) in assumptions { + collected.insert(ty::OutlivesPredicate(arg1, r2)); + match arg1.kind() { + // Elaborate the components of an type, since we may have substituted a + // generic coroutine with a more specific type. + ty::GenericArgKind::Type(ty1) => { + let mut components = smallvec![]; + push_outlives_components(cx, ty1, &mut components); + for c in components { + match c { + Component::Region(r1) => { + if !r1.is_bound() { + collected.insert(ty::OutlivesPredicate(r1.into(), r2)); + } + } + + Component::Param(p) => { + let ty = Ty::new_param(cx, p); + collected.insert(ty::OutlivesPredicate(ty.into(), r2)); + } + + Component::Placeholder(p) => { + let ty = Ty::new_placeholder(cx, p); + collected.insert(ty::OutlivesPredicate(ty.into(), r2)); + } + + Component::Alias(alias_ty) => { + collected.insert(ty::OutlivesPredicate(alias_ty.to_ty(cx).into(), r2)); + } + + Component::UnresolvedInferenceVariable(_) | Component::EscapingAlias(_) => { + } + } + } + } + // Nothing to elaborate for a region. + ty::GenericArgKind::Lifetime(_) => {} + // Consts don't really participate in outlives. + ty::GenericArgKind::Const(_) => {} + } + } + + collected +} diff --git a/compiler/rustc_type_ir/src/flags.rs b/compiler/rustc_type_ir/src/flags.rs index 37cc2baa402..d7b9e0ca340 100644 --- a/compiler/rustc_type_ir/src/flags.rs +++ b/compiler/rustc_type_ir/src/flags.rs @@ -130,6 +130,12 @@ bitflags::bitflags! { /// Does this have any binders with bound vars (e.g. that need to be anonymized)? const HAS_BINDER_VARS = 1 << 23; + + /// Does this type have any coroutine witnesses in it? + // FIXME: This should probably be changed to track whether the type has any + // *coroutines* in it, though this will happen if we remove coroutine witnesses + // altogether. + const HAS_TY_CORO = 1 << 24; } } @@ -240,10 +246,12 @@ impl<I: Interner> FlagComputation<I> { self.add_flags(TypeFlags::HAS_TY_PARAM); } - ty::Closure(_, args) - | ty::Coroutine(_, args) - | ty::CoroutineClosure(_, args) - | ty::CoroutineWitness(_, args) => { + ty::Closure(_, args) | ty::Coroutine(_, args) | ty::CoroutineClosure(_, args) => { + self.add_args(args.as_slice()); + } + + ty::CoroutineWitness(_, args) => { + self.add_flags(TypeFlags::HAS_TY_CORO); self.add_args(args.as_slice()); } @@ -401,7 +409,6 @@ impl<I: Interner> FlagComputation<I> { self.add_const(expected); self.add_const(found); } - ty::PredicateKind::Ambiguous => {} ty::PredicateKind::NormalizesTo(ty::NormalizesTo { alias, term }) => { self.add_alias_term(alias); self.add_term(term); @@ -410,6 +417,8 @@ impl<I: Interner> FlagComputation<I> { self.add_term(t1); self.add_term(t2); } + ty::PredicateKind::Clause(ty::ClauseKind::UnstableFeature(_sym)) => {} + ty::PredicateKind::Ambiguous => {} } } diff --git a/compiler/rustc_type_ir/src/infer_ctxt.rs b/compiler/rustc_type_ir/src/infer_ctxt.rs index 6c77a90250a..e86a2305e23 100644 --- a/compiler/rustc_type_ir/src/infer_ctxt.rs +++ b/compiler/rustc_type_ir/src/infer_ctxt.rs @@ -285,3 +285,40 @@ pub trait InferCtxtLike: Sized { fn reset_opaque_types(&self); } + +pub fn may_use_unstable_feature<'a, I: Interner, Infcx>( + infcx: &'a Infcx, + param_env: I::ParamEnv, + symbol: I::Symbol, +) -> bool +where + Infcx: InferCtxtLike<Interner = I>, +{ + // Iterate through all goals in param_env to find the one that has the same symbol. + for pred in param_env.caller_bounds().iter() { + if let ty::ClauseKind::UnstableFeature(sym) = pred.kind().skip_binder() { + if sym == symbol { + return true; + } + } + } + + // During codegen we must assume that all feature bounds hold as we may be + // monomorphizing a body from an upstream crate which had an unstable feature + // enabled that we do not. + // + // Coherence should already report overlap errors involving unstable impls + // as the affected code would otherwise break when stabilizing this feature. + // It is also easily possible to accidentally cause unsoundness this way as + // we have to always enable unstable impls during codegen. + // + // Return ambiguity can also prevent people from writing code which depends on inference guidance + // that might no longer work after the impl is stabilised, + // tests/ui/unstable-feature-bound/unstable_impl_method_selection.rs is one of the example. + // + // Note: `feature_bound_holds_in_crate` does not consider a feature to be enabled + // if we are in std/core even if there is a corresponding `feature` attribute on the crate. + + (infcx.typing_mode() == TypingMode::PostAnalysis) + || infcx.cx().features().feature_bound_holds_in_crate(symbol) +} diff --git a/compiler/rustc_type_ir/src/inherent.rs b/compiler/rustc_type_ir/src/inherent.rs index 2754d40fd36..0e307e15d5b 100644 --- a/compiler/rustc_type_ir/src/inherent.rs +++ b/compiler/rustc_type_ir/src/inherent.rs @@ -630,6 +630,8 @@ pub trait Features<I: Interner>: Copy { fn coroutine_clone(self) -> bool; fn associated_const_equality(self) -> bool; + + fn feature_bound_holds_in_crate(self, symbol: I::Symbol) -> bool; } pub trait DefId<I: Interner>: Copy + Debug + Hash + Eq + TypeFoldable<I> { diff --git a/compiler/rustc_type_ir/src/interner.rs b/compiler/rustc_type_ir/src/interner.rs index dd3cf1fc181..e3231244577 100644 --- a/compiler/rustc_type_ir/src/interner.rs +++ b/compiler/rustc_type_ir/src/interner.rs @@ -106,6 +106,7 @@ pub trait Interner: type ParamTy: ParamLike; type BoundTy: BoundVarLike<Self>; type PlaceholderTy: PlaceholderLike<Self, Bound = Self::BoundTy>; + type Symbol: Copy + Hash + PartialEq + Eq + Debug; // Things stored inside of tys type ErrorGuaranteed: Copy + Debug + Hash + Eq; @@ -145,6 +146,13 @@ pub trait Interner: type BoundRegion: BoundVarLike<Self>; type PlaceholderRegion: PlaceholderLike<Self, Bound = Self::BoundRegion>; + type RegionAssumptions: Copy + + Debug + + Hash + + Eq + + SliceLike<Item = ty::OutlivesPredicate<Self, Self::GenericArg>> + + TypeFoldable<Self>; + // Predicates type ParamEnv: ParamEnv<Self>; type Predicate: Predicate<Self>; diff --git a/compiler/rustc_type_ir/src/predicate_kind.rs b/compiler/rustc_type_ir/src/predicate_kind.rs index 4e41fd16ffd..8bc15ec4ff5 100644 --- a/compiler/rustc_type_ir/src/predicate_kind.rs +++ b/compiler/rustc_type_ir/src/predicate_kind.rs @@ -46,6 +46,13 @@ pub enum ClauseKind<I: Interner> { /// corresponding trait clause; this just enforces the *constness* of that /// implementation. HostEffect(ty::HostEffectPredicate<I>), + + /// Support marking impl as unstable. + UnstableFeature( + #[type_foldable(identity)] + #[type_visitable(ignore)] + I::Symbol, + ), } #[derive_where(Clone, Copy, Hash, PartialEq, Eq; I: Interner)] @@ -134,6 +141,9 @@ impl<I: Interner> fmt::Debug for ClauseKind<I> { ClauseKind::ConstEvaluatable(ct) => { write!(f, "ConstEvaluatable({ct:?})") } + ClauseKind::UnstableFeature(feature_name) => { + write!(f, "UnstableFeature({feature_name:?})") + } } } } diff --git a/compiler/rustc_type_ir/src/ty_kind.rs b/compiler/rustc_type_ir/src/ty_kind.rs index db6fbefcf05..7c665424750 100644 --- a/compiler/rustc_type_ir/src/ty_kind.rs +++ b/compiler/rustc_type_ir/src/ty_kind.rs @@ -1150,4 +1150,5 @@ pub struct FnHeader<I: Interner> { #[derive(TypeVisitable_Generic, TypeFoldable_Generic, Lift_Generic)] pub struct CoroutineWitnessTypes<I: Interner> { pub types: I::Tys, + pub assumptions: I::RegionAssumptions, } diff --git a/compiler/rustc_type_ir/src/visit.rs b/compiler/rustc_type_ir/src/visit.rs index a96ac97f785..5104484e9c4 100644 --- a/compiler/rustc_type_ir/src/visit.rs +++ b/compiler/rustc_type_ir/src/visit.rs @@ -269,6 +269,10 @@ pub trait TypeVisitableExt<I: Interner>: TypeVisitable<I> { self.has_type_flags(TypeFlags::HAS_TY_OPAQUE) } + fn has_coroutines(&self) -> bool { + self.has_type_flags(TypeFlags::HAS_TY_CORO) + } + fn references_error(&self) -> bool { self.has_type_flags(TypeFlags::HAS_ERROR) } diff --git a/library/Cargo.lock b/library/Cargo.lock index c681c5935df..8b5275e5065 100644 --- a/library/Cargo.lock +++ b/library/Cargo.lock @@ -271,9 +271,9 @@ dependencies = [ [[package]] name = "rustc-literal-escaper" -version = "0.0.4" +version = "0.0.5" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ab03008eb631b703dd16978282ae36c73282e7922fe101a4bd072a40ecea7b8b" +checksum = "e4ee29da77c5a54f42697493cd4c9b9f31b74df666a6c04dfc4fde77abe0438b" dependencies = [ "rustc-std-workspace-core", "rustc-std-workspace-std", diff --git a/library/alloc/src/boxed/thin.rs b/library/alloc/src/boxed/thin.rs index 21425b9846e..1cce36606d2 100644 --- a/library/alloc/src/boxed/thin.rs +++ b/library/alloc/src/boxed/thin.rs @@ -5,7 +5,7 @@ use core::error::Error; use core::fmt::{self, Debug, Display, Formatter}; #[cfg(not(no_global_oom_handling))] -use core::intrinsics::const_allocate; +use core::intrinsics::{const_allocate, const_make_global}; use core::marker::PhantomData; #[cfg(not(no_global_oom_handling))] use core::marker::Unsize; @@ -340,9 +340,10 @@ impl<H> WithHeader<H> { alloc.add(metadata_offset).cast(); // SAFETY: `*metadata_ptr` is within the allocation. metadata_ptr.write(ptr::metadata::<Dyn>(ptr::dangling::<T>() as *const Dyn)); - + // SAFETY: valid heap allocation + const_make_global(alloc); // SAFETY: we have just written the metadata. - &*(metadata_ptr) + &*metadata_ptr } }; diff --git a/library/alloc/src/fmt.rs b/library/alloc/src/fmt.rs index 30f42050ac8..d0ba9c39886 100644 --- a/library/alloc/src/fmt.rs +++ b/library/alloc/src/fmt.rs @@ -348,13 +348,13 @@ //! format := '{' [ argument ] [ ':' format_spec ] [ ws ] * '}' //! argument := integer | identifier //! -//! format_spec := [[fill]align][sign]['#']['0'][width]['.' precision]type +//! format_spec := [[fill]align][sign]['#']['0'][width]['.' precision][type] //! fill := character //! align := '<' | '^' | '>' //! sign := '+' | '-' //! width := count //! precision := count | '*' -//! type := '' | '?' | 'x?' | 'X?' | identifier +//! type := '?' | 'x?' | 'X?' | identifier //! count := parameter | integer //! parameter := argument '$' //! ``` diff --git a/library/core/src/array/mod.rs b/library/core/src/array/mod.rs index 16356f749c9..62203e132b7 100644 --- a/library/core/src/array/mod.rs +++ b/library/core/src/array/mod.rs @@ -374,9 +374,10 @@ impl<'a, T, const N: usize> IntoIterator for &'a mut [T; N] { } #[stable(feature = "index_trait_on_arrays", since = "1.50.0")] -impl<T, I, const N: usize> Index<I> for [T; N] +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +impl<T, I, const N: usize> const Index<I> for [T; N] where - [T]: Index<I>, + [T]: ~const Index<I>, { type Output = <[T] as Index<I>>::Output; @@ -387,9 +388,10 @@ where } #[stable(feature = "index_trait_on_arrays", since = "1.50.0")] -impl<T, I, const N: usize> IndexMut<I> for [T; N] +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +impl<T, I, const N: usize> const IndexMut<I> for [T; N] where - [T]: IndexMut<I>, + [T]: ~const IndexMut<I>, { #[inline] fn index_mut(&mut self, index: I) -> &mut Self::Output { diff --git a/library/core/src/cmp.rs b/library/core/src/cmp.rs index 03b120fbf0c..6419ae99113 100644 --- a/library/core/src/cmp.rs +++ b/library/core/src/cmp.rs @@ -381,7 +381,8 @@ pub struct AssertParamIsEq<T: Eq + PointeeSized> { /// /// assert_eq!(2.cmp(&1), Ordering::Greater); /// ``` -#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Debug, Hash)] +#[derive(Clone, Copy, Eq, PartialOrd, Ord, Debug, Hash)] +#[derive_const(PartialEq)] #[stable(feature = "rust1", since = "1.0.0")] // This is a lang item only so that `BinOp::Cmp` in MIR can return it. // It has no special behavior, but does require that the three variants diff --git a/library/core/src/cmp/bytewise.rs b/library/core/src/cmp/bytewise.rs index a06a5227fe2..7d61c9345ec 100644 --- a/library/core/src/cmp/bytewise.rs +++ b/library/core/src/cmp/bytewise.rs @@ -17,11 +17,15 @@ use crate::num::NonZero; /// - Neither `Self` nor `Rhs` have provenance, so integer comparisons are correct. /// - `<Self as PartialEq<Rhs>>::{eq,ne}` are equivalent to comparing the bytes. #[rustc_specialization_trait] -pub(crate) unsafe trait BytewiseEq<Rhs = Self>: PartialEq<Rhs> + Sized {} +#[const_trait] +pub(crate) unsafe trait BytewiseEq<Rhs = Self>: + ~const PartialEq<Rhs> + Sized +{ +} macro_rules! is_bytewise_comparable { ($($t:ty),+ $(,)?) => {$( - unsafe impl BytewiseEq for $t {} + unsafe impl const BytewiseEq for $t {} )+}; } diff --git a/library/core/src/ffi/c_str.rs b/library/core/src/ffi/c_str.rs index 881a7a24083..c43f3834630 100644 --- a/library/core/src/ffi/c_str.rs +++ b/library/core/src/ffi/c_str.rs @@ -135,16 +135,20 @@ pub enum FromBytesWithNulError { } #[stable(feature = "frombyteswithnulerror_impls", since = "1.17.0")] -impl Error for FromBytesWithNulError { - #[allow(deprecated)] - fn description(&self) -> &str { +impl fmt::Display for FromBytesWithNulError { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match self { - Self::InteriorNul { .. } => "data provided contains an interior nul byte", - Self::NotNulTerminated => "data provided is not nul terminated", + Self::InteriorNul { position } => { + write!(f, "data provided contains an interior nul byte at byte position {position}") + } + Self::NotNulTerminated => write!(f, "data provided is not nul terminated"), } } } +#[stable(feature = "frombyteswithnulerror_impls", since = "1.17.0")] +impl Error for FromBytesWithNulError {} + /// An error indicating that no nul byte was present. /// /// A slice used to create a [`CStr`] must contain a nul byte somewhere @@ -181,18 +185,6 @@ impl Default for &CStr { } } -#[stable(feature = "frombyteswithnulerror_impls", since = "1.17.0")] -impl fmt::Display for FromBytesWithNulError { - #[allow(deprecated, deprecated_in_future)] - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.write_str(self.description())?; - if let Self::InteriorNul { position } = self { - write!(f, " at byte pos {position}")?; - } - Ok(()) - } -} - impl CStr { /// Wraps a raw C string with a safe C string wrapper. /// diff --git a/library/core/src/fmt/num.rs b/library/core/src/fmt/num.rs index e1381ace441..7d41ae45093 100644 --- a/library/core/src/fmt/num.rs +++ b/library/core/src/fmt/num.rs @@ -358,7 +358,7 @@ macro_rules! impl_Display { } #[cfg(feature = "optimize_for_size")] { - offset = _inner_slow_integer_to_str(self.unsigned_abs().$conv_fn(), &mut buf.buf); + offset = ${concat(_inner_slow_integer_to_str, $gen_name)}(self.unsigned_abs().$conv_fn(), &mut buf.buf); } // Only difference between signed and unsigned are these 4 lines. if self < 0 { @@ -401,7 +401,7 @@ macro_rules! impl_Display { } #[cfg(feature = "optimize_for_size")] { - offset = _inner_slow_integer_to_str(self.$conv_fn(), &mut buf.buf); + offset = ${concat(_inner_slow_integer_to_str, $gen_name)}(self.$conv_fn(), &mut buf.buf); } // SAFETY: Starting from `offset`, all elements of the slice have been set. unsafe { slice_buffer_to_str(&buf.buf, offset) } @@ -412,7 +412,7 @@ macro_rules! impl_Display { )* #[cfg(feature = "optimize_for_size")] - fn _inner_slow_integer_to_str(mut n: $u, buf: &mut [MaybeUninit::<u8>]) -> usize { + fn ${concat(_inner_slow_integer_to_str, $gen_name)}(mut n: $u, buf: &mut [MaybeUninit::<u8>]) -> usize { let mut curr = buf.len(); // SAFETY: To show that it's OK to copy into `buf_ptr`, notice that at the beginning @@ -437,7 +437,7 @@ macro_rules! impl_Display { const MAX_DEC_N: usize = $u::MAX.ilog(10) as usize + 1; let mut buf = [MaybeUninit::<u8>::uninit(); MAX_DEC_N]; - let offset = _inner_slow_integer_to_str(n, &mut buf); + let offset = ${concat(_inner_slow_integer_to_str, $gen_name)}(n, &mut buf); // SAFETY: Starting from `offset`, all elements of the slice have been set. let buf_slice = unsafe { slice_buffer_to_str(&buf, offset) }; f.pad_integral(is_nonnegative, "", buf_slice) diff --git a/library/core/src/intrinsics/mod.rs b/library/core/src/intrinsics/mod.rs index 1ece3d9bd5e..f90e6851d1f 100644 --- a/library/core/src/intrinsics/mod.rs +++ b/library/core/src/intrinsics/mod.rs @@ -2208,6 +2208,7 @@ pub const unsafe fn raw_eq<T>(a: &T, b: &T) -> bool; /// [valid]: crate::ptr#safety #[rustc_nounwind] #[rustc_intrinsic] +#[rustc_const_unstable(feature = "const_cmp", issue = "143800")] pub const unsafe fn compare_bytes(left: *const u8, right: *const u8, bytes: usize) -> i32; /// See documentation of [`std::hint::black_box`] for details. @@ -2533,6 +2534,15 @@ pub const unsafe fn const_deallocate(_ptr: *mut u8, _size: usize, _align: usize) // Runtime NOP } +#[rustc_const_unstable(feature = "const_heap", issue = "79597")] +#[rustc_nounwind] +#[rustc_intrinsic] +#[miri::intrinsic_fallback_is_spec] +pub const unsafe fn const_make_global(ptr: *mut u8) -> *const u8 { + // const eval overrides this function; at runtime, it is a NOP. + ptr +} + /// Returns whether we should perform contract-checking at runtime. /// /// This is meant to be similar to the ub_checks intrinsic, in terms diff --git a/library/core/src/io/borrowed_buf.rs b/library/core/src/io/borrowed_buf.rs index b5dfe6dbd71..088dea78129 100644 --- a/library/core/src/io/borrowed_buf.rs +++ b/library/core/src/io/borrowed_buf.rs @@ -149,7 +149,6 @@ impl<'data> BorrowedBuf<'data> { #[inline] pub fn unfilled<'this>(&'this mut self) -> BorrowedCursor<'this> { BorrowedCursor { - start: self.filled, // SAFETY: we never assign into `BorrowedCursor::buf`, so treating its // lifetime covariantly is safe. buf: unsafe { @@ -205,9 +204,6 @@ pub struct BorrowedCursor<'a> { // we create a `BorrowedCursor`. This is only safe if we never replace `buf` by assigning into // it, so don't do that! buf: &'a mut BorrowedBuf<'a>, - /// The length of the filled portion of the underlying buffer at the time of the cursor's - /// creation. - start: usize, } impl<'a> BorrowedCursor<'a> { @@ -225,7 +221,6 @@ impl<'a> BorrowedCursor<'a> { self.buf, ) }, - start: self.start, } } @@ -235,23 +230,12 @@ impl<'a> BorrowedCursor<'a> { self.buf.capacity() - self.buf.filled } - /// Returns the number of bytes written to this cursor since it was created from a `BorrowedBuf`. + /// Returns the number of bytes written to the `BorrowedBuf` this cursor was created from. /// - /// Note that if this cursor is a reborrowed clone of another, then the count returned is the - /// count written via either cursor, not the count since the cursor was reborrowed. + /// In particular, the count returned is shared by all reborrows of the cursor. #[inline] pub fn written(&self) -> usize { - self.buf.filled - self.start - } - - /// Returns a shared reference to the initialized portion of the cursor. - #[inline] - pub fn init_ref(&self) -> &[u8] { - // SAFETY: We only slice the initialized part of the buffer, which is always valid - unsafe { - let buf = self.buf.buf.get_unchecked(self.buf.filled..self.buf.init); - buf.assume_init_ref() - } + self.buf.filled } /// Returns a mutable reference to the initialized portion of the cursor. @@ -264,15 +248,6 @@ impl<'a> BorrowedCursor<'a> { } } - /// Returns a mutable reference to the uninitialized part of the cursor. - /// - /// It is safe to uninitialize any of these bytes. - #[inline] - pub fn uninit_mut(&mut self) -> &mut [MaybeUninit<u8>] { - // SAFETY: always in bounds - unsafe { self.buf.buf.get_unchecked_mut(self.buf.init..) } - } - /// Returns a mutable reference to the whole cursor. /// /// # Safety @@ -325,7 +300,9 @@ impl<'a> BorrowedCursor<'a> { /// Initializes all bytes in the cursor. #[inline] pub fn ensure_init(&mut self) -> &mut Self { - let uninit = self.uninit_mut(); + // SAFETY: always in bounds and we never uninitialize these bytes. + let uninit = unsafe { self.buf.buf.get_unchecked_mut(self.buf.init..) }; + // SAFETY: 0 is a valid value for MaybeUninit<u8> and the length matches the allocation // since it is comes from a slice reference. unsafe { diff --git a/library/core/src/lib.rs b/library/core/src/lib.rs index 2f701171505..729de5ffc8f 100644 --- a/library/core/src/lib.rs +++ b/library/core/src/lib.rs @@ -103,6 +103,7 @@ #![feature(cfg_select)] #![feature(cfg_target_has_reliable_f16_f128)] #![feature(const_carrying_mul_add)] +#![feature(const_cmp)] #![feature(const_destruct)] #![feature(const_eval_select)] #![feature(core_intrinsics)] @@ -146,6 +147,7 @@ #![feature(const_trait_impl)] #![feature(decl_macro)] #![feature(deprecated_suggestion)] +#![feature(derive_const)] #![feature(doc_cfg)] #![feature(doc_cfg_hide)] #![feature(doc_notable_trait)] @@ -160,6 +162,7 @@ #![feature(lang_items)] #![feature(link_llvm_intrinsics)] #![feature(macro_metavar_expr)] +#![feature(macro_metavar_expr_concat)] #![feature(marker_trait_attr)] #![feature(min_specialization)] #![feature(multiple_supertrait_upcastable)] diff --git a/library/core/src/macros/mod.rs b/library/core/src/macros/mod.rs index 1b6dbc2f428..8ac6ce2242d 100644 --- a/library/core/src/macros/mod.rs +++ b/library/core/src/macros/mod.rs @@ -1615,7 +1615,7 @@ pub(crate) mod builtin { /// See [the reference] for more info. /// /// [the reference]: ../../../reference/attributes/derive.html - #[unstable(feature = "derive_const", issue = "none")] + #[unstable(feature = "derive_const", issue = "118304")] #[rustc_builtin_macro] pub macro derive_const($item:item) { /* compiler built-in */ diff --git a/library/core/src/num/nonzero.rs b/library/core/src/num/nonzero.rs index 11d50e0f89f..b8900c4113a 100644 --- a/library/core/src/num/nonzero.rs +++ b/library/core/src/num/nonzero.rs @@ -200,9 +200,10 @@ impl<T> UseCloned for NonZero<T> where T: ZeroablePrimitive {} impl<T> Copy for NonZero<T> where T: ZeroablePrimitive {} #[stable(feature = "nonzero", since = "1.28.0")] -impl<T> PartialEq for NonZero<T> +#[rustc_const_unstable(feature = "const_cmp", issue = "143800")] +impl<T> const PartialEq for NonZero<T> where - T: ZeroablePrimitive + PartialEq, + T: ZeroablePrimitive + ~const PartialEq, { #[inline] fn eq(&self, other: &Self) -> bool { diff --git a/library/core/src/num/wrapping.rs b/library/core/src/num/wrapping.rs index 55fa91d0b9f..c460f38bd2e 100644 --- a/library/core/src/num/wrapping.rs +++ b/library/core/src/num/wrapping.rs @@ -94,9 +94,9 @@ macro_rules! sh_impl_signed { #[inline] fn shl(self, other: $f) -> Wrapping<$t> { if other < 0 { - Wrapping(self.0.wrapping_shr((-other & self::shift_max::$t as $f) as u32)) + Wrapping(self.0.wrapping_shr(-other as u32)) } else { - Wrapping(self.0.wrapping_shl((other & self::shift_max::$t as $f) as u32)) + Wrapping(self.0.wrapping_shl(other as u32)) } } } @@ -119,9 +119,9 @@ macro_rules! sh_impl_signed { #[inline] fn shr(self, other: $f) -> Wrapping<$t> { if other < 0 { - Wrapping(self.0.wrapping_shl((-other & self::shift_max::$t as $f) as u32)) + Wrapping(self.0.wrapping_shl(-other as u32)) } else { - Wrapping(self.0.wrapping_shr((other & self::shift_max::$t as $f) as u32)) + Wrapping(self.0.wrapping_shr(other as u32)) } } } @@ -147,7 +147,7 @@ macro_rules! sh_impl_unsigned { #[inline] fn shl(self, other: $f) -> Wrapping<$t> { - Wrapping(self.0.wrapping_shl((other & self::shift_max::$t as $f) as u32)) + Wrapping(self.0.wrapping_shl(other as u32)) } } forward_ref_binop! { impl Shl, shl for Wrapping<$t>, $f, @@ -168,7 +168,7 @@ macro_rules! sh_impl_unsigned { #[inline] fn shr(self, other: $f) -> Wrapping<$t> { - Wrapping(self.0.wrapping_shr((other & self::shift_max::$t as $f) as u32)) + Wrapping(self.0.wrapping_shr(other as u32)) } } forward_ref_binop! { impl Shr, shr for Wrapping<$t>, $f, @@ -1052,39 +1052,3 @@ macro_rules! wrapping_int_impl_unsigned { } wrapping_int_impl_unsigned! { usize u8 u16 u32 u64 u128 } - -mod shift_max { - #![allow(non_upper_case_globals)] - - #[cfg(target_pointer_width = "16")] - mod platform { - pub(crate) const usize: u32 = super::u16; - pub(crate) const isize: u32 = super::i16; - } - - #[cfg(target_pointer_width = "32")] - mod platform { - pub(crate) const usize: u32 = super::u32; - pub(crate) const isize: u32 = super::i32; - } - - #[cfg(target_pointer_width = "64")] - mod platform { - pub(crate) const usize: u32 = super::u64; - pub(crate) const isize: u32 = super::i64; - } - - pub(super) const i8: u32 = (1 << 3) - 1; - pub(super) const i16: u32 = (1 << 4) - 1; - pub(super) const i32: u32 = (1 << 5) - 1; - pub(super) const i64: u32 = (1 << 6) - 1; - pub(super) const i128: u32 = (1 << 7) - 1; - pub(super) use self::platform::isize; - - pub(super) const u8: u32 = i8; - pub(super) const u16: u32 = i16; - pub(super) const u32: u32 = i32; - pub(super) const u64: u32 = i64; - pub(super) const u128: u32 = i128; - pub(super) use self::platform::usize; -} diff --git a/library/core/src/ops/index.rs b/library/core/src/ops/index.rs index 8092fa9eb2f..d8489e9a949 100644 --- a/library/core/src/ops/index.rs +++ b/library/core/src/ops/index.rs @@ -55,6 +55,8 @@ #[doc(alias = "]")] #[doc(alias = "[")] #[doc(alias = "[]")] +#[const_trait] +#[rustc_const_unstable(feature = "const_index", issue = "143775")] pub trait Index<Idx: ?Sized> { /// The returned type after indexing. #[stable(feature = "rust1", since = "1.0.0")] @@ -165,7 +167,9 @@ see chapter in The Book <https://doc.rust-lang.org/book/ch08-02-strings.html#ind #[doc(alias = "[")] #[doc(alias = "]")] #[doc(alias = "[]")] -pub trait IndexMut<Idx: ?Sized>: Index<Idx> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +#[const_trait] +pub trait IndexMut<Idx: ?Sized>: ~const Index<Idx> { /// Performs the mutable indexing (`container[index]`) operation. /// /// # Panics diff --git a/library/core/src/option.rs b/library/core/src/option.rs index 9f432758a66..8036c59e893 100644 --- a/library/core/src/option.rs +++ b/library/core/src/option.rs @@ -577,6 +577,7 @@ #![stable(feature = "rust1", since = "1.0.0")] use crate::iter::{self, FusedIterator, TrustedLen}; +use crate::marker::Destruct; use crate::ops::{self, ControlFlow, Deref, DerefMut}; use crate::panicking::{panic, panic_display}; use crate::pin::Pin; @@ -649,7 +650,8 @@ impl<T> Option<T> { #[must_use] #[inline] #[stable(feature = "is_some_and", since = "1.70.0")] - pub fn is_some_and(self, f: impl FnOnce(T) -> bool) -> bool { + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn is_some_and(self, f: impl ~const FnOnce(T) -> bool + ~const Destruct) -> bool { match self { None => false, Some(x) => f(x), @@ -697,7 +699,8 @@ impl<T> Option<T> { #[must_use] #[inline] #[stable(feature = "is_none_or", since = "1.82.0")] - pub fn is_none_or(self, f: impl FnOnce(T) -> bool) -> bool { + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn is_none_or(self, f: impl ~const FnOnce(T) -> bool + ~const Destruct) -> bool { match self { None => true, Some(x) => f(x), @@ -1023,7 +1026,12 @@ impl<T> Option<T> { /// ``` #[inline] #[stable(feature = "rust1", since = "1.0.0")] - pub fn unwrap_or(self, default: T) -> T { + #[rustc_allow_const_fn_unstable(const_precise_live_drops)] + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn unwrap_or(self, default: T) -> T + where + T: ~const Destruct, + { match self { Some(x) => x, None => default, @@ -1042,9 +1050,10 @@ impl<T> Option<T> { #[inline] #[track_caller] #[stable(feature = "rust1", since = "1.0.0")] - pub fn unwrap_or_else<F>(self, f: F) -> T + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn unwrap_or_else<F>(self, f: F) -> T where - F: FnOnce() -> T, + F: ~const FnOnce() -> T + ~const Destruct, { match self { Some(x) => x, @@ -1073,9 +1082,10 @@ impl<T> Option<T> { /// [`FromStr`]: crate::str::FromStr #[inline] #[stable(feature = "rust1", since = "1.0.0")] - pub fn unwrap_or_default(self) -> T + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn unwrap_or_default(self) -> T where - T: Default, + T: ~const Default, { match self { Some(x) => x, @@ -1139,9 +1149,10 @@ impl<T> Option<T> { /// ``` #[inline] #[stable(feature = "rust1", since = "1.0.0")] - pub fn map<U, F>(self, f: F) -> Option<U> + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn map<U, F>(self, f: F) -> Option<U> where - F: FnOnce(T) -> U, + F: ~const FnOnce(T) -> U + ~const Destruct, { match self { Some(x) => Some(f(x)), @@ -1169,7 +1180,11 @@ impl<T> Option<T> { /// ``` #[inline] #[stable(feature = "result_option_inspect", since = "1.76.0")] - pub fn inspect<F: FnOnce(&T)>(self, f: F) -> Self { + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn inspect<F>(self, f: F) -> Self + where + F: ~const FnOnce(&T) + ~const Destruct, + { if let Some(ref x) = self { f(x); } @@ -1198,9 +1213,11 @@ impl<T> Option<T> { #[inline] #[stable(feature = "rust1", since = "1.0.0")] #[must_use = "if you don't need the returned value, use `if let` instead"] - pub fn map_or<U, F>(self, default: U, f: F) -> U + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn map_or<U, F>(self, default: U, f: F) -> U where - F: FnOnce(T) -> U, + F: ~const FnOnce(T) -> U + ~const Destruct, + U: ~const Destruct, { match self { Some(t) => f(t), @@ -1243,10 +1260,11 @@ impl<T> Option<T> { /// ``` #[inline] #[stable(feature = "rust1", since = "1.0.0")] - pub fn map_or_else<U, D, F>(self, default: D, f: F) -> U + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn map_or_else<U, D, F>(self, default: D, f: F) -> U where - D: FnOnce() -> U, - F: FnOnce(T) -> U, + D: ~const FnOnce() -> U + ~const Destruct, + F: ~const FnOnce(T) -> U + ~const Destruct, { match self { Some(t) => f(t), @@ -1273,10 +1291,11 @@ impl<T> Option<T> { /// [default value]: Default::default #[inline] #[unstable(feature = "result_option_map_or_default", issue = "138099")] - pub fn map_or_default<U, F>(self, f: F) -> U + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn map_or_default<U, F>(self, f: F) -> U where - U: Default, - F: FnOnce(T) -> U, + U: ~const Default, + F: ~const FnOnce(T) -> U + ~const Destruct, { match self { Some(t) => f(t), @@ -1307,7 +1326,8 @@ impl<T> Option<T> { /// ``` #[inline] #[stable(feature = "rust1", since = "1.0.0")] - pub fn ok_or<E>(self, err: E) -> Result<T, E> { + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn ok_or<E: ~const Destruct>(self, err: E) -> Result<T, E> { match self { Some(v) => Ok(v), None => Err(err), @@ -1332,9 +1352,10 @@ impl<T> Option<T> { /// ``` #[inline] #[stable(feature = "rust1", since = "1.0.0")] - pub fn ok_or_else<E, F>(self, err: F) -> Result<T, E> + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn ok_or_else<E, F>(self, err: F) -> Result<T, E> where - F: FnOnce() -> E, + F: ~const FnOnce() -> E + ~const Destruct, { match self { Some(v) => Ok(v), @@ -1463,7 +1484,12 @@ impl<T> Option<T> { /// ``` #[inline] #[stable(feature = "rust1", since = "1.0.0")] - pub fn and<U>(self, optb: Option<U>) -> Option<U> { + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn and<U>(self, optb: Option<U>) -> Option<U> + where + T: ~const Destruct, + U: ~const Destruct, + { match self { Some(_) => optb, None => None, @@ -1502,9 +1528,10 @@ impl<T> Option<T> { #[inline] #[stable(feature = "rust1", since = "1.0.0")] #[rustc_confusables("flat_map", "flatmap")] - pub fn and_then<U, F>(self, f: F) -> Option<U> + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn and_then<U, F>(self, f: F) -> Option<U> where - F: FnOnce(T) -> Option<U>, + F: ~const FnOnce(T) -> Option<U> + ~const Destruct, { match self { Some(x) => f(x), @@ -1538,9 +1565,11 @@ impl<T> Option<T> { /// [`Some(t)`]: Some #[inline] #[stable(feature = "option_filter", since = "1.27.0")] - pub fn filter<P>(self, predicate: P) -> Self + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn filter<P>(self, predicate: P) -> Self where - P: FnOnce(&T) -> bool, + P: ~const FnOnce(&T) -> bool + ~const Destruct, + T: ~const Destruct, { if let Some(x) = self { if predicate(&x) { @@ -1579,7 +1608,11 @@ impl<T> Option<T> { /// ``` #[inline] #[stable(feature = "rust1", since = "1.0.0")] - pub fn or(self, optb: Option<T>) -> Option<T> { + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn or(self, optb: Option<T>) -> Option<T> + where + T: ~const Destruct, + { match self { x @ Some(_) => x, None => optb, @@ -1601,9 +1634,13 @@ impl<T> Option<T> { /// ``` #[inline] #[stable(feature = "rust1", since = "1.0.0")] - pub fn or_else<F>(self, f: F) -> Option<T> + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn or_else<F>(self, f: F) -> Option<T> where - F: FnOnce() -> Option<T>, + F: ~const FnOnce() -> Option<T> + ~const Destruct, + //FIXME(const_hack): this `T: ~const Destruct` is unnecessary, but even precise live drops can't tell + // no value of type `T` gets dropped here + T: ~const Destruct, { match self { x @ Some(_) => x, @@ -1634,7 +1671,11 @@ impl<T> Option<T> { /// ``` #[inline] #[stable(feature = "option_xor", since = "1.37.0")] - pub fn xor(self, optb: Option<T>) -> Option<T> { + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn xor(self, optb: Option<T>) -> Option<T> + where + T: ~const Destruct, + { match (self, optb) { (a @ Some(_), None) => a, (None, b @ Some(_)) => b, @@ -1668,7 +1709,11 @@ impl<T> Option<T> { #[must_use = "if you intended to set a value, consider assignment instead"] #[inline] #[stable(feature = "option_insert", since = "1.53.0")] - pub fn insert(&mut self, value: T) -> &mut T { + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn insert(&mut self, value: T) -> &mut T + where + T: ~const Destruct, + { *self = Some(value); // SAFETY: the code above just filled the option @@ -1720,9 +1765,10 @@ impl<T> Option<T> { /// ``` #[inline] #[stable(feature = "option_get_or_insert_default", since = "1.83.0")] - pub fn get_or_insert_default(&mut self) -> &mut T + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn get_or_insert_default(&mut self) -> &mut T where - T: Default, + T: ~const Default + ~const Destruct, { self.get_or_insert_with(T::default) } @@ -1746,9 +1792,11 @@ impl<T> Option<T> { /// ``` #[inline] #[stable(feature = "option_entry", since = "1.20.0")] - pub fn get_or_insert_with<F>(&mut self, f: F) -> &mut T + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn get_or_insert_with<F>(&mut self, f: F) -> &mut T where - F: FnOnce() -> T, + F: ~const FnOnce() -> T + ~const Destruct, + T: ~const Destruct, { if let None = self { *self = Some(f()); @@ -1812,9 +1860,10 @@ impl<T> Option<T> { /// ``` #[inline] #[stable(feature = "option_take_if", since = "1.80.0")] - pub fn take_if<P>(&mut self, predicate: P) -> Option<T> + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn take_if<P>(&mut self, predicate: P) -> Option<T> where - P: FnOnce(&mut T) -> bool, + P: ~const FnOnce(&mut T) -> bool + ~const Destruct, { if self.as_mut().map_or(false, predicate) { self.take() } else { None } } @@ -1859,7 +1908,12 @@ impl<T> Option<T> { /// assert_eq!(x.zip(z), None); /// ``` #[stable(feature = "option_zip_option", since = "1.46.0")] - pub fn zip<U>(self, other: Option<U>) -> Option<(T, U)> { + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn zip<U>(self, other: Option<U>) -> Option<(T, U)> + where + T: ~const Destruct, + U: ~const Destruct, + { match (self, other) { (Some(a), Some(b)) => Some((a, b)), _ => None, @@ -1895,9 +1949,12 @@ impl<T> Option<T> { /// assert_eq!(x.zip_with(None, Point::new), None); /// ``` #[unstable(feature = "option_zip", issue = "70086")] - pub fn zip_with<U, F, R>(self, other: Option<U>, f: F) -> Option<R> + #[rustc_const_unstable(feature = "const_option_ops", issue = "143956")] + pub const fn zip_with<U, F, R>(self, other: Option<U>, f: F) -> Option<R> where - F: FnOnce(T, U) -> R, + F: ~const FnOnce(T, U) -> R + ~const Destruct, + T: ~const Destruct, + U: ~const Destruct, { match (self, other) { (Some(a), Some(b)) => Some(f(a, b)), @@ -2243,7 +2300,8 @@ impl<'a, T> From<&'a mut Option<T>> for Option<&'a mut T> { #[stable(feature = "rust1", since = "1.0.0")] impl<T> crate::marker::StructuralPartialEq for Option<T> {} #[stable(feature = "rust1", since = "1.0.0")] -impl<T: PartialEq> PartialEq for Option<T> { +#[rustc_const_unstable(feature = "const_cmp", issue = "143800")] +impl<T: ~const PartialEq> const PartialEq for Option<T> { #[inline] fn eq(&self, other: &Self) -> bool { // Spelling out the cases explicitly optimizes better than diff --git a/library/core/src/prelude/v1.rs b/library/core/src/prelude/v1.rs index 7b9e04920d5..a4be66b90ca 100644 --- a/library/core/src/prelude/v1.rs +++ b/library/core/src/prelude/v1.rs @@ -80,7 +80,7 @@ pub use crate::macros::builtin::{ alloc_error_handler, bench, derive, global_allocator, test, test_case, }; -#[unstable(feature = "derive_const", issue = "none")] +#[unstable(feature = "derive_const", issue = "118304")] pub use crate::macros::builtin::derive_const; #[unstable( diff --git a/library/core/src/ptr/const_ptr.rs b/library/core/src/ptr/const_ptr.rs index 27b0c6830db..2ad520b7ead 100644 --- a/library/core/src/ptr/const_ptr.rs +++ b/library/core/src/ptr/const_ptr.rs @@ -1524,10 +1524,11 @@ impl<T> *const [T] { /// } /// ``` #[unstable(feature = "slice_ptr_get", issue = "74265")] + #[rustc_const_unstable(feature = "const_index", issue = "143775")] #[inline] - pub unsafe fn get_unchecked<I>(self, index: I) -> *const I::Output + pub const unsafe fn get_unchecked<I>(self, index: I) -> *const I::Output where - I: SliceIndex<[T]>, + I: ~const SliceIndex<[T]>, { // SAFETY: the caller ensures that `self` is dereferenceable and `index` in-bounds. unsafe { index.get_unchecked(self) } diff --git a/library/core/src/ptr/mut_ptr.rs b/library/core/src/ptr/mut_ptr.rs index 73efdf04454..579e2461103 100644 --- a/library/core/src/ptr/mut_ptr.rs +++ b/library/core/src/ptr/mut_ptr.rs @@ -1881,10 +1881,11 @@ impl<T> *mut [T] { /// } /// ``` #[unstable(feature = "slice_ptr_get", issue = "74265")] + #[rustc_const_unstable(feature = "const_index", issue = "143775")] #[inline(always)] - pub unsafe fn get_unchecked_mut<I>(self, index: I) -> *mut I::Output + pub const unsafe fn get_unchecked_mut<I>(self, index: I) -> *mut I::Output where - I: SliceIndex<[T]>, + I: ~const SliceIndex<[T]>, { // SAFETY: the caller ensures that `self` is dereferenceable and `index` in-bounds. unsafe { index.get_unchecked_mut(self) } diff --git a/library/core/src/ptr/non_null.rs b/library/core/src/ptr/non_null.rs index c4ca29a3679..62da6567cca 100644 --- a/library/core/src/ptr/non_null.rs +++ b/library/core/src/ptr/non_null.rs @@ -1597,10 +1597,11 @@ impl<T> NonNull<[T]> { /// } /// ``` #[unstable(feature = "slice_ptr_get", issue = "74265")] + #[rustc_const_unstable(feature = "const_index", issue = "143775")] #[inline] - pub unsafe fn get_unchecked_mut<I>(self, index: I) -> NonNull<I::Output> + pub const unsafe fn get_unchecked_mut<I>(self, index: I) -> NonNull<I::Output> where - I: SliceIndex<[T]>, + I: ~const SliceIndex<[T]>, { // SAFETY: the caller ensures that `self` is dereferenceable and `index` in-bounds. // As a consequence, the resulting pointer cannot be null. diff --git a/library/core/src/range.rs b/library/core/src/range.rs index 2276112a27b..5cd7956291c 100644 --- a/library/core/src/range.rs +++ b/library/core/src/range.rs @@ -186,14 +186,17 @@ impl<T> IntoBounds<T> for Range<T> { } #[unstable(feature = "new_range_api", issue = "125687")] -impl<T> From<Range<T>> for legacy::Range<T> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +impl<T> const From<Range<T>> for legacy::Range<T> { #[inline] fn from(value: Range<T>) -> Self { Self { start: value.start, end: value.end } } } + #[unstable(feature = "new_range_api", issue = "125687")] -impl<T> From<legacy::Range<T>> for Range<T> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +impl<T> const From<legacy::Range<T>> for Range<T> { #[inline] fn from(value: legacy::Range<T>) -> Self { Self { start: value.start, end: value.end } @@ -362,7 +365,8 @@ impl<T> IntoBounds<T> for RangeInclusive<T> { } #[unstable(feature = "new_range_api", issue = "125687")] -impl<T> From<RangeInclusive<T>> for legacy::RangeInclusive<T> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +impl<T> const From<RangeInclusive<T>> for legacy::RangeInclusive<T> { #[inline] fn from(value: RangeInclusive<T>) -> Self { Self::new(value.start, value.end) @@ -506,14 +510,16 @@ impl<T> IntoBounds<T> for RangeFrom<T> { } #[unstable(feature = "new_range_api", issue = "125687")] -impl<T> From<RangeFrom<T>> for legacy::RangeFrom<T> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +impl<T> const From<RangeFrom<T>> for legacy::RangeFrom<T> { #[inline] fn from(value: RangeFrom<T>) -> Self { Self { start: value.start } } } #[unstable(feature = "new_range_api", issue = "125687")] -impl<T> From<legacy::RangeFrom<T>> for RangeFrom<T> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +impl<T> const From<legacy::RangeFrom<T>> for RangeFrom<T> { #[inline] fn from(value: legacy::RangeFrom<T>) -> Self { Self { start: value.start } diff --git a/library/core/src/slice/cmp.rs b/library/core/src/slice/cmp.rs index 5ce72b46eee..1eda8bc1bec 100644 --- a/library/core/src/slice/cmp.rs +++ b/library/core/src/slice/cmp.rs @@ -8,9 +8,10 @@ use crate::num::NonZero; use crate::ops::ControlFlow; #[stable(feature = "rust1", since = "1.0.0")] -impl<T, U> PartialEq<[U]> for [T] +#[rustc_const_unstable(feature = "const_cmp", issue = "143800")] +impl<T, U> const PartialEq<[U]> for [T] where - T: PartialEq<U>, + T: ~const PartialEq<U>, { fn eq(&self, other: &[U]) -> bool { SlicePartialEq::equal(self, other) @@ -94,6 +95,8 @@ impl<T: PartialOrd> PartialOrd for [T] { #[doc(hidden)] // intermediate trait for specialization of slice's PartialEq +#[const_trait] +#[rustc_const_unstable(feature = "const_cmp", issue = "143800")] trait SlicePartialEq<B> { fn equal(&self, other: &[B]) -> bool; @@ -103,9 +106,10 @@ trait SlicePartialEq<B> { } // Generic slice equality -impl<A, B> SlicePartialEq<B> for [A] +#[rustc_const_unstable(feature = "const_cmp", issue = "143800")] +impl<A, B> const SlicePartialEq<B> for [A] where - A: PartialEq<B>, + A: ~const PartialEq<B>, { default fn equal(&self, other: &[B]) -> bool { if self.len() != other.len() { @@ -115,11 +119,14 @@ where // Implemented as explicit indexing rather // than zipped iterators for performance reasons. // See PR https://github.com/rust-lang/rust/pull/116846 - for idx in 0..self.len() { + // FIXME(const_hack): make this a `for idx in 0..self.len()` loop. + let mut idx = 0; + while idx < self.len() { // bound checks are optimized away if self[idx] != other[idx] { return false; } + idx += 1; } true @@ -128,9 +135,10 @@ where // When each element can be compared byte-wise, we can compare all the bytes // from the whole size in one call to the intrinsics. -impl<A, B> SlicePartialEq<B> for [A] +#[rustc_const_unstable(feature = "const_cmp", issue = "143800")] +impl<A, B> const SlicePartialEq<B> for [A] where - A: BytewiseEq<B>, + A: ~const BytewiseEq<B>, { fn equal(&self, other: &[B]) -> bool { if self.len() != other.len() { diff --git a/library/core/src/slice/index.rs b/library/core/src/slice/index.rs index f725c3fdd94..322b3580ede 100644 --- a/library/core/src/slice/index.rs +++ b/library/core/src/slice/index.rs @@ -6,9 +6,10 @@ use crate::ub_checks::assert_unsafe_precondition; use crate::{ops, range}; #[stable(feature = "rust1", since = "1.0.0")] -impl<T, I> ops::Index<I> for [T] +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +impl<T, I> const ops::Index<I> for [T] where - I: SliceIndex<[T]>, + I: ~const SliceIndex<[T]>, { type Output = I::Output; @@ -19,9 +20,10 @@ where } #[stable(feature = "rust1", since = "1.0.0")] -impl<T, I> ops::IndexMut<I> for [T] +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +impl<T, I> const ops::IndexMut<I> for [T] where - I: SliceIndex<[T]>, + I: ~const SliceIndex<[T]>, { #[inline(always)] fn index_mut(&mut self, index: I) -> &mut I::Output { @@ -158,6 +160,8 @@ mod private_slice_index { message = "the type `{T}` cannot be indexed by `{Self}`", label = "slice indices are of type `usize` or ranges of `usize`" )] +#[const_trait] +#[rustc_const_unstable(feature = "const_index", issue = "143775")] pub unsafe trait SliceIndex<T: ?Sized>: private_slice_index::Sealed { /// The output type returned by methods. #[stable(feature = "slice_get_slice", since = "1.28.0")] @@ -208,7 +212,8 @@ pub unsafe trait SliceIndex<T: ?Sized>: private_slice_index::Sealed { /// The methods `index` and `index_mut` panic if the index is out of bounds. #[stable(feature = "slice_get_slice_impls", since = "1.15.0")] -unsafe impl<T> SliceIndex<[T]> for usize { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl<T> const SliceIndex<[T]> for usize { type Output = T; #[inline] @@ -278,7 +283,8 @@ unsafe impl<T> SliceIndex<[T]> for usize { /// Because `IndexRange` guarantees `start <= end`, fewer checks are needed here /// than there are for a general `Range<usize>` (which might be `100..3`). -unsafe impl<T> SliceIndex<[T]> for ops::IndexRange { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl<T> const SliceIndex<[T]> for ops::IndexRange { type Output = [T]; #[inline] @@ -354,7 +360,8 @@ unsafe impl<T> SliceIndex<[T]> for ops::IndexRange { /// - the start of the range is greater than the end of the range or /// - the end of the range is out of bounds. #[stable(feature = "slice_get_slice_impls", since = "1.15.0")] -unsafe impl<T> SliceIndex<[T]> for ops::Range<usize> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl<T> const SliceIndex<[T]> for ops::Range<usize> { type Output = [T]; #[inline] @@ -453,7 +460,8 @@ unsafe impl<T> SliceIndex<[T]> for ops::Range<usize> { } #[unstable(feature = "new_range_api", issue = "125687")] -unsafe impl<T> SliceIndex<[T]> for range::Range<usize> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl<T> const SliceIndex<[T]> for range::Range<usize> { type Output = [T]; #[inline] @@ -491,7 +499,8 @@ unsafe impl<T> SliceIndex<[T]> for range::Range<usize> { /// The methods `index` and `index_mut` panic if the end of the range is out of bounds. #[stable(feature = "slice_get_slice_impls", since = "1.15.0")] -unsafe impl<T> SliceIndex<[T]> for ops::RangeTo<usize> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl<T> const SliceIndex<[T]> for ops::RangeTo<usize> { type Output = [T]; #[inline] @@ -529,7 +538,8 @@ unsafe impl<T> SliceIndex<[T]> for ops::RangeTo<usize> { /// The methods `index` and `index_mut` panic if the start of the range is out of bounds. #[stable(feature = "slice_get_slice_impls", since = "1.15.0")] -unsafe impl<T> SliceIndex<[T]> for ops::RangeFrom<usize> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl<T> const SliceIndex<[T]> for ops::RangeFrom<usize> { type Output = [T]; #[inline] @@ -574,7 +584,8 @@ unsafe impl<T> SliceIndex<[T]> for ops::RangeFrom<usize> { } #[unstable(feature = "new_range_api", issue = "125687")] -unsafe impl<T> SliceIndex<[T]> for range::RangeFrom<usize> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl<T> const SliceIndex<[T]> for range::RangeFrom<usize> { type Output = [T]; #[inline] @@ -611,7 +622,8 @@ unsafe impl<T> SliceIndex<[T]> for range::RangeFrom<usize> { } #[stable(feature = "slice_get_slice_impls", since = "1.15.0")] -unsafe impl<T> SliceIndex<[T]> for ops::RangeFull { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl<T> const SliceIndex<[T]> for ops::RangeFull { type Output = [T]; #[inline] @@ -650,7 +662,8 @@ unsafe impl<T> SliceIndex<[T]> for ops::RangeFull { /// - the start of the range is greater than the end of the range or /// - the end of the range is out of bounds. #[stable(feature = "inclusive_range", since = "1.26.0")] -unsafe impl<T> SliceIndex<[T]> for ops::RangeInclusive<usize> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl<T> const SliceIndex<[T]> for ops::RangeInclusive<usize> { type Output = [T]; #[inline] @@ -693,7 +706,8 @@ unsafe impl<T> SliceIndex<[T]> for ops::RangeInclusive<usize> { } #[unstable(feature = "new_range_api", issue = "125687")] -unsafe impl<T> SliceIndex<[T]> for range::RangeInclusive<usize> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl<T> const SliceIndex<[T]> for range::RangeInclusive<usize> { type Output = [T]; #[inline] @@ -731,7 +745,8 @@ unsafe impl<T> SliceIndex<[T]> for range::RangeInclusive<usize> { /// The methods `index` and `index_mut` panic if the end of the range is out of bounds. #[stable(feature = "inclusive_range", since = "1.26.0")] -unsafe impl<T> SliceIndex<[T]> for ops::RangeToInclusive<usize> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl<T> const SliceIndex<[T]> for ops::RangeToInclusive<usize> { type Output = [T]; #[inline] diff --git a/library/core/src/slice/mod.rs b/library/core/src/slice/mod.rs index abcba5a621e..32419024db9 100644 --- a/library/core/src/slice/mod.rs +++ b/library/core/src/slice/mod.rs @@ -568,9 +568,10 @@ impl<T> [T] { #[rustc_no_implicit_autorefs] #[inline] #[must_use] - pub fn get<I>(&self, index: I) -> Option<&I::Output> + #[rustc_const_unstable(feature = "const_index", issue = "143775")] + pub const fn get<I>(&self, index: I) -> Option<&I::Output> where - I: SliceIndex<Self>, + I: ~const SliceIndex<Self>, { index.get(self) } @@ -594,9 +595,10 @@ impl<T> [T] { #[rustc_no_implicit_autorefs] #[inline] #[must_use] - pub fn get_mut<I>(&mut self, index: I) -> Option<&mut I::Output> + #[rustc_const_unstable(feature = "const_index", issue = "143775")] + pub const fn get_mut<I>(&mut self, index: I) -> Option<&mut I::Output> where - I: SliceIndex<Self>, + I: ~const SliceIndex<Self>, { index.get_mut(self) } @@ -633,9 +635,10 @@ impl<T> [T] { #[inline] #[must_use] #[track_caller] - pub unsafe fn get_unchecked<I>(&self, index: I) -> &I::Output + #[rustc_const_unstable(feature = "const_index", issue = "143775")] + pub const unsafe fn get_unchecked<I>(&self, index: I) -> &I::Output where - I: SliceIndex<Self>, + I: ~const SliceIndex<Self>, { // SAFETY: the caller must uphold most of the safety requirements for `get_unchecked`; // the slice is dereferenceable because `self` is a safe reference. @@ -677,9 +680,10 @@ impl<T> [T] { #[inline] #[must_use] #[track_caller] - pub unsafe fn get_unchecked_mut<I>(&mut self, index: I) -> &mut I::Output + #[rustc_const_unstable(feature = "const_index", issue = "143775")] + pub const unsafe fn get_unchecked_mut<I>(&mut self, index: I) -> &mut I::Output where - I: SliceIndex<Self>, + I: ~const SliceIndex<Self>, { // SAFETY: the caller must uphold the safety requirements for `get_unchecked_mut`; // the slice is dereferenceable because `self` is a safe reference. diff --git a/library/core/src/str/mod.rs b/library/core/src/str/mod.rs index 2e26cc871df..18a516c0f60 100644 --- a/library/core/src/str/mod.rs +++ b/library/core/src/str/mod.rs @@ -589,8 +589,9 @@ impl str { /// assert!(v.get(..42).is_none()); /// ``` #[stable(feature = "str_checked_slicing", since = "1.20.0")] + #[rustc_const_unstable(feature = "const_index", issue = "143775")] #[inline] - pub fn get<I: SliceIndex<str>>(&self, i: I) -> Option<&I::Output> { + pub const fn get<I: ~const SliceIndex<str>>(&self, i: I) -> Option<&I::Output> { i.get(self) } @@ -621,8 +622,9 @@ impl str { /// assert_eq!("HEllo", v); /// ``` #[stable(feature = "str_checked_slicing", since = "1.20.0")] + #[rustc_const_unstable(feature = "const_index", issue = "143775")] #[inline] - pub fn get_mut<I: SliceIndex<str>>(&mut self, i: I) -> Option<&mut I::Output> { + pub const fn get_mut<I: ~const SliceIndex<str>>(&mut self, i: I) -> Option<&mut I::Output> { i.get_mut(self) } diff --git a/library/core/src/str/traits.rs b/library/core/src/str/traits.rs index b9559c83171..d0f2b9226bf 100644 --- a/library/core/src/str/traits.rs +++ b/library/core/src/str/traits.rs @@ -23,7 +23,8 @@ impl Ord for str { } #[stable(feature = "rust1", since = "1.0.0")] -impl PartialEq for str { +#[rustc_const_unstable(feature = "const_cmp", issue = "143800")] +impl const PartialEq for str { #[inline] fn eq(&self, other: &str) -> bool { self.as_bytes() == other.as_bytes() @@ -49,9 +50,10 @@ impl PartialOrd for str { } #[stable(feature = "rust1", since = "1.0.0")] -impl<I> ops::Index<I> for str +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +impl<I> const ops::Index<I> for str where - I: SliceIndex<str>, + I: ~const SliceIndex<str>, { type Output = I::Output; @@ -62,9 +64,10 @@ where } #[stable(feature = "rust1", since = "1.0.0")] -impl<I> ops::IndexMut<I> for str +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +impl<I> const ops::IndexMut<I> for str where - I: SliceIndex<str>, + I: ~const SliceIndex<str>, { #[inline] fn index_mut(&mut self, index: I) -> &mut I::Output { @@ -92,7 +95,8 @@ const fn str_index_overflow_fail() -> ! { /// /// Equivalent to `&self[0 .. len]` or `&mut self[0 .. len]`. #[stable(feature = "str_checked_slicing", since = "1.20.0")] -unsafe impl SliceIndex<str> for ops::RangeFull { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl const SliceIndex<str> for ops::RangeFull { type Output = str; #[inline] fn get(self, slice: &str) -> Option<&Self::Output> { @@ -156,7 +160,8 @@ unsafe impl SliceIndex<str> for ops::RangeFull { /// // &s[3 .. 100]; /// ``` #[stable(feature = "str_checked_slicing", since = "1.20.0")] -unsafe impl SliceIndex<str> for ops::Range<usize> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl const SliceIndex<str> for ops::Range<usize> { type Output = str; #[inline] fn get(self, slice: &str) -> Option<&Self::Output> { @@ -260,7 +265,8 @@ unsafe impl SliceIndex<str> for ops::Range<usize> { } #[unstable(feature = "new_range_api", issue = "125687")] -unsafe impl SliceIndex<str> for range::Range<usize> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl const SliceIndex<str> for range::Range<usize> { type Output = str; #[inline] fn get(self, slice: &str) -> Option<&Self::Output> { @@ -431,7 +437,8 @@ unsafe impl SliceIndex<str> for (ops::Bound<usize>, ops::Bound<usize>) { /// Panics if `end` does not point to the starting byte offset of a /// character (as defined by `is_char_boundary`), or if `end > len`. #[stable(feature = "str_checked_slicing", since = "1.20.0")] -unsafe impl SliceIndex<str> for ops::RangeTo<usize> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl const SliceIndex<str> for ops::RangeTo<usize> { type Output = str; #[inline] fn get(self, slice: &str) -> Option<&Self::Output> { @@ -499,7 +506,8 @@ unsafe impl SliceIndex<str> for ops::RangeTo<usize> { /// Panics if `begin` does not point to the starting byte offset of /// a character (as defined by `is_char_boundary`), or if `begin > len`. #[stable(feature = "str_checked_slicing", since = "1.20.0")] -unsafe impl SliceIndex<str> for ops::RangeFrom<usize> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl const SliceIndex<str> for ops::RangeFrom<usize> { type Output = str; #[inline] fn get(self, slice: &str) -> Option<&Self::Output> { @@ -554,7 +562,8 @@ unsafe impl SliceIndex<str> for ops::RangeFrom<usize> { } #[unstable(feature = "new_range_api", issue = "125687")] -unsafe impl SliceIndex<str> for range::RangeFrom<usize> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl const SliceIndex<str> for range::RangeFrom<usize> { type Output = str; #[inline] fn get(self, slice: &str) -> Option<&Self::Output> { @@ -625,7 +634,8 @@ unsafe impl SliceIndex<str> for range::RangeFrom<usize> { /// to the ending byte offset of a character (`end + 1` is either a starting /// byte offset or equal to `len`), if `begin > end`, or if `end >= len`. #[stable(feature = "inclusive_range", since = "1.26.0")] -unsafe impl SliceIndex<str> for ops::RangeInclusive<usize> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl const SliceIndex<str> for ops::RangeInclusive<usize> { type Output = str; #[inline] fn get(self, slice: &str) -> Option<&Self::Output> { @@ -662,7 +672,8 @@ unsafe impl SliceIndex<str> for ops::RangeInclusive<usize> { } #[unstable(feature = "new_range_api", issue = "125687")] -unsafe impl SliceIndex<str> for range::RangeInclusive<usize> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl const SliceIndex<str> for range::RangeInclusive<usize> { type Output = str; #[inline] fn get(self, slice: &str) -> Option<&Self::Output> { @@ -713,7 +724,8 @@ unsafe impl SliceIndex<str> for range::RangeInclusive<usize> { /// (`end + 1` is either a starting byte offset as defined by /// `is_char_boundary`, or equal to `len`), or if `end >= len`. #[stable(feature = "inclusive_range", since = "1.26.0")] -unsafe impl SliceIndex<str> for ops::RangeToInclusive<usize> { +#[rustc_const_unstable(feature = "const_index", issue = "143775")] +unsafe impl const SliceIndex<str> for ops::RangeToInclusive<usize> { type Output = str; #[inline] fn get(self, slice: &str) -> Option<&Self::Output> { diff --git a/library/coretests/tests/floats/f128.rs b/library/coretests/tests/floats/f128.rs index 38df09a91c1..36d6a20a944 100644 --- a/library/coretests/tests/floats/f128.rs +++ b/library/coretests/tests/floats/f128.rs @@ -1,9 +1,7 @@ // FIXME(f16_f128): only tested on platforms that have symbols and aren't buggy #![cfg(target_has_reliable_f128)] -use core::ops::{Add, Div, Mul, Sub}; use std::f128::consts; -use std::num::FpCategory as Fp; use super::{assert_approx_eq, assert_biteq}; @@ -38,161 +36,10 @@ const NAN_MASK1: u128 = 0x0000aaaaaaaaaaaaaaaaaaaaaaaaaaaa; /// Second pattern over the mantissa const NAN_MASK2: u128 = 0x00005555555555555555555555555555; -#[test] -fn test_num_f128() { - // FIXME(f16_f128): replace with a `test_num` call once the required `fmodl`/`fmodf128` - // function is available on all platforms. - let ten = 10f128; - let two = 2f128; - assert_biteq!(ten.add(two), ten + two); - assert_biteq!(ten.sub(two), ten - two); - assert_biteq!(ten.mul(two), ten * two); - assert_biteq!(ten.div(two), ten / two); - #[cfg(any(miri, target_has_reliable_f128_math))] - assert_biteq!(core::ops::Rem::rem(ten, two), ten % two); -} - // FIXME(f16_f128,miri): many of these have to be disabled since miri does not yet support // the intrinsics. #[test] -fn test_infinity() { - let inf: f128 = f128::INFINITY; - assert!(inf.is_infinite()); - assert!(!inf.is_finite()); - assert!(inf.is_sign_positive()); - assert!(!inf.is_sign_negative()); - assert!(!inf.is_nan()); - assert!(!inf.is_normal()); - assert_eq!(Fp::Infinite, inf.classify()); -} - -#[test] -fn test_neg_infinity() { - let neg_inf: f128 = f128::NEG_INFINITY; - assert!(neg_inf.is_infinite()); - assert!(!neg_inf.is_finite()); - assert!(!neg_inf.is_sign_positive()); - assert!(neg_inf.is_sign_negative()); - assert!(!neg_inf.is_nan()); - assert!(!neg_inf.is_normal()); - assert_eq!(Fp::Infinite, neg_inf.classify()); -} - -#[test] -fn test_zero() { - let zero: f128 = 0.0f128; - assert_biteq!(0.0, zero); - assert!(!zero.is_infinite()); - assert!(zero.is_finite()); - assert!(zero.is_sign_positive()); - assert!(!zero.is_sign_negative()); - assert!(!zero.is_nan()); - assert!(!zero.is_normal()); - assert_eq!(Fp::Zero, zero.classify()); -} - -#[test] -fn test_neg_zero() { - let neg_zero: f128 = -0.0; - assert_eq!(0.0, neg_zero); - assert_biteq!(-0.0, neg_zero); - assert!(!neg_zero.is_infinite()); - assert!(neg_zero.is_finite()); - assert!(!neg_zero.is_sign_positive()); - assert!(neg_zero.is_sign_negative()); - assert!(!neg_zero.is_nan()); - assert!(!neg_zero.is_normal()); - assert_eq!(Fp::Zero, neg_zero.classify()); -} - -#[test] -fn test_one() { - let one: f128 = 1.0f128; - assert_biteq!(1.0, one); - assert!(!one.is_infinite()); - assert!(one.is_finite()); - assert!(one.is_sign_positive()); - assert!(!one.is_sign_negative()); - assert!(!one.is_nan()); - assert!(one.is_normal()); - assert_eq!(Fp::Normal, one.classify()); -} - -#[test] -fn test_is_nan() { - let nan: f128 = f128::NAN; - let inf: f128 = f128::INFINITY; - let neg_inf: f128 = f128::NEG_INFINITY; - assert!(nan.is_nan()); - assert!(!0.0f128.is_nan()); - assert!(!5.3f128.is_nan()); - assert!(!(-10.732f128).is_nan()); - assert!(!inf.is_nan()); - assert!(!neg_inf.is_nan()); -} - -#[test] -fn test_is_infinite() { - let nan: f128 = f128::NAN; - let inf: f128 = f128::INFINITY; - let neg_inf: f128 = f128::NEG_INFINITY; - assert!(!nan.is_infinite()); - assert!(inf.is_infinite()); - assert!(neg_inf.is_infinite()); - assert!(!0.0f128.is_infinite()); - assert!(!42.8f128.is_infinite()); - assert!(!(-109.2f128).is_infinite()); -} - -#[test] -fn test_is_finite() { - let nan: f128 = f128::NAN; - let inf: f128 = f128::INFINITY; - let neg_inf: f128 = f128::NEG_INFINITY; - assert!(!nan.is_finite()); - assert!(!inf.is_finite()); - assert!(!neg_inf.is_finite()); - assert!(0.0f128.is_finite()); - assert!(42.8f128.is_finite()); - assert!((-109.2f128).is_finite()); -} - -#[test] -fn test_is_normal() { - let nan: f128 = f128::NAN; - let inf: f128 = f128::INFINITY; - let neg_inf: f128 = f128::NEG_INFINITY; - let zero: f128 = 0.0f128; - let neg_zero: f128 = -0.0; - assert!(!nan.is_normal()); - assert!(!inf.is_normal()); - assert!(!neg_inf.is_normal()); - assert!(!zero.is_normal()); - assert!(!neg_zero.is_normal()); - assert!(1f128.is_normal()); - assert!(1e-4931f128.is_normal()); - assert!(!1e-4932f128.is_normal()); -} - -#[test] -fn test_classify() { - let nan: f128 = f128::NAN; - let inf: f128 = f128::INFINITY; - let neg_inf: f128 = f128::NEG_INFINITY; - let zero: f128 = 0.0f128; - let neg_zero: f128 = -0.0; - assert_eq!(nan.classify(), Fp::Nan); - assert_eq!(inf.classify(), Fp::Infinite); - assert_eq!(neg_inf.classify(), Fp::Infinite); - assert_eq!(zero.classify(), Fp::Zero); - assert_eq!(neg_zero.classify(), Fp::Zero); - assert_eq!(1f128.classify(), Fp::Normal); - assert_eq!(1e-4931f128.classify(), Fp::Normal); - assert_eq!(1e-4932f128.classify(), Fp::Subnormal); -} - -#[test] #[cfg(any(miri, target_has_reliable_f128_math))] fn test_abs() { assert_biteq!(f128::INFINITY.abs(), f128::INFINITY); diff --git a/library/coretests/tests/floats/f16.rs b/library/coretests/tests/floats/f16.rs index f6749d796cc..351c008a37b 100644 --- a/library/coretests/tests/floats/f16.rs +++ b/library/coretests/tests/floats/f16.rs @@ -2,7 +2,6 @@ #![cfg(target_has_reliable_f16)] use std::f16::consts; -use std::num::FpCategory as Fp; use super::{assert_approx_eq, assert_biteq}; @@ -43,152 +42,10 @@ const NAN_MASK1: u16 = 0x02aa; /// Second pattern over the mantissa const NAN_MASK2: u16 = 0x0155; -#[test] -fn test_num_f16() { - super::test_num(10f16, 2f16); -} - // FIXME(f16_f128,miri): many of these have to be disabled since miri does not yet support // the intrinsics. #[test] -fn test_infinity() { - let inf: f16 = f16::INFINITY; - assert!(inf.is_infinite()); - assert!(!inf.is_finite()); - assert!(inf.is_sign_positive()); - assert!(!inf.is_sign_negative()); - assert!(!inf.is_nan()); - assert!(!inf.is_normal()); - assert_eq!(Fp::Infinite, inf.classify()); -} - -#[test] -fn test_neg_infinity() { - let neg_inf: f16 = f16::NEG_INFINITY; - assert!(neg_inf.is_infinite()); - assert!(!neg_inf.is_finite()); - assert!(!neg_inf.is_sign_positive()); - assert!(neg_inf.is_sign_negative()); - assert!(!neg_inf.is_nan()); - assert!(!neg_inf.is_normal()); - assert_eq!(Fp::Infinite, neg_inf.classify()); -} - -#[test] -fn test_zero() { - let zero: f16 = 0.0f16; - assert_biteq!(0.0, zero); - assert!(!zero.is_infinite()); - assert!(zero.is_finite()); - assert!(zero.is_sign_positive()); - assert!(!zero.is_sign_negative()); - assert!(!zero.is_nan()); - assert!(!zero.is_normal()); - assert_eq!(Fp::Zero, zero.classify()); -} - -#[test] -fn test_neg_zero() { - let neg_zero: f16 = -0.0; - assert_eq!(0.0, neg_zero); - assert_biteq!(-0.0, neg_zero); - assert!(!neg_zero.is_infinite()); - assert!(neg_zero.is_finite()); - assert!(!neg_zero.is_sign_positive()); - assert!(neg_zero.is_sign_negative()); - assert!(!neg_zero.is_nan()); - assert!(!neg_zero.is_normal()); - assert_eq!(Fp::Zero, neg_zero.classify()); -} - -#[test] -fn test_one() { - let one: f16 = 1.0f16; - assert_biteq!(1.0, one); - assert!(!one.is_infinite()); - assert!(one.is_finite()); - assert!(one.is_sign_positive()); - assert!(!one.is_sign_negative()); - assert!(!one.is_nan()); - assert!(one.is_normal()); - assert_eq!(Fp::Normal, one.classify()); -} - -#[test] -fn test_is_nan() { - let nan: f16 = f16::NAN; - let inf: f16 = f16::INFINITY; - let neg_inf: f16 = f16::NEG_INFINITY; - assert!(nan.is_nan()); - assert!(!0.0f16.is_nan()); - assert!(!5.3f16.is_nan()); - assert!(!(-10.732f16).is_nan()); - assert!(!inf.is_nan()); - assert!(!neg_inf.is_nan()); -} - -#[test] -fn test_is_infinite() { - let nan: f16 = f16::NAN; - let inf: f16 = f16::INFINITY; - let neg_inf: f16 = f16::NEG_INFINITY; - assert!(!nan.is_infinite()); - assert!(inf.is_infinite()); - assert!(neg_inf.is_infinite()); - assert!(!0.0f16.is_infinite()); - assert!(!42.8f16.is_infinite()); - assert!(!(-109.2f16).is_infinite()); -} - -#[test] -fn test_is_finite() { - let nan: f16 = f16::NAN; - let inf: f16 = f16::INFINITY; - let neg_inf: f16 = f16::NEG_INFINITY; - assert!(!nan.is_finite()); - assert!(!inf.is_finite()); - assert!(!neg_inf.is_finite()); - assert!(0.0f16.is_finite()); - assert!(42.8f16.is_finite()); - assert!((-109.2f16).is_finite()); -} - -#[test] -fn test_is_normal() { - let nan: f16 = f16::NAN; - let inf: f16 = f16::INFINITY; - let neg_inf: f16 = f16::NEG_INFINITY; - let zero: f16 = 0.0f16; - let neg_zero: f16 = -0.0; - assert!(!nan.is_normal()); - assert!(!inf.is_normal()); - assert!(!neg_inf.is_normal()); - assert!(!zero.is_normal()); - assert!(!neg_zero.is_normal()); - assert!(1f16.is_normal()); - assert!(1e-4f16.is_normal()); - assert!(!1e-5f16.is_normal()); -} - -#[test] -fn test_classify() { - let nan: f16 = f16::NAN; - let inf: f16 = f16::INFINITY; - let neg_inf: f16 = f16::NEG_INFINITY; - let zero: f16 = 0.0f16; - let neg_zero: f16 = -0.0; - assert_eq!(nan.classify(), Fp::Nan); - assert_eq!(inf.classify(), Fp::Infinite); - assert_eq!(neg_inf.classify(), Fp::Infinite); - assert_eq!(zero.classify(), Fp::Zero); - assert_eq!(neg_zero.classify(), Fp::Zero); - assert_eq!(1f16.classify(), Fp::Normal); - assert_eq!(1e-4f16.classify(), Fp::Normal); - assert_eq!(1e-5f16.classify(), Fp::Subnormal); -} - -#[test] #[cfg(any(miri, target_has_reliable_f16_math))] fn test_abs() { assert_biteq!(f16::INFINITY.abs(), f16::INFINITY); diff --git a/library/coretests/tests/floats/f32.rs b/library/coretests/tests/floats/f32.rs index f5d5723fea4..267b0e4e294 100644 --- a/library/coretests/tests/floats/f32.rs +++ b/library/coretests/tests/floats/f32.rs @@ -1,6 +1,5 @@ use core::f32; use core::f32::consts; -use core::num::FpCategory as Fp; use super::{assert_approx_eq, assert_biteq}; @@ -31,148 +30,6 @@ const NAN_MASK2: u32 = 0x0055_5555; const APPROX_DELTA: f32 = if cfg!(miri) { 1e-4 } else { 1e-6 }; #[test] -fn test_num_f32() { - super::test_num(10f32, 2f32); -} - -#[test] -fn test_infinity() { - let inf: f32 = f32::INFINITY; - assert!(inf.is_infinite()); - assert!(!inf.is_finite()); - assert!(inf.is_sign_positive()); - assert!(!inf.is_sign_negative()); - assert!(!inf.is_nan()); - assert!(!inf.is_normal()); - assert_eq!(Fp::Infinite, inf.classify()); -} - -#[test] -fn test_neg_infinity() { - let neg_inf: f32 = f32::NEG_INFINITY; - assert!(neg_inf.is_infinite()); - assert!(!neg_inf.is_finite()); - assert!(!neg_inf.is_sign_positive()); - assert!(neg_inf.is_sign_negative()); - assert!(!neg_inf.is_nan()); - assert!(!neg_inf.is_normal()); - assert_eq!(Fp::Infinite, neg_inf.classify()); -} - -#[test] -fn test_zero() { - let zero: f32 = 0.0f32; - assert_biteq!(0.0, zero); - assert!(!zero.is_infinite()); - assert!(zero.is_finite()); - assert!(zero.is_sign_positive()); - assert!(!zero.is_sign_negative()); - assert!(!zero.is_nan()); - assert!(!zero.is_normal()); - assert_eq!(Fp::Zero, zero.classify()); -} - -#[test] -fn test_neg_zero() { - let neg_zero: f32 = -0.0; - assert_eq!(0.0, neg_zero); - assert_biteq!(-0.0, neg_zero); - assert!(!neg_zero.is_infinite()); - assert!(neg_zero.is_finite()); - assert!(!neg_zero.is_sign_positive()); - assert!(neg_zero.is_sign_negative()); - assert!(!neg_zero.is_nan()); - assert!(!neg_zero.is_normal()); - assert_eq!(Fp::Zero, neg_zero.classify()); -} - -#[test] -fn test_one() { - let one: f32 = 1.0f32; - assert_biteq!(1.0, one); - assert!(!one.is_infinite()); - assert!(one.is_finite()); - assert!(one.is_sign_positive()); - assert!(!one.is_sign_negative()); - assert!(!one.is_nan()); - assert!(one.is_normal()); - assert_eq!(Fp::Normal, one.classify()); -} - -#[test] -fn test_is_nan() { - let nan: f32 = f32::NAN; - let inf: f32 = f32::INFINITY; - let neg_inf: f32 = f32::NEG_INFINITY; - assert!(nan.is_nan()); - assert!(!0.0f32.is_nan()); - assert!(!5.3f32.is_nan()); - assert!(!(-10.732f32).is_nan()); - assert!(!inf.is_nan()); - assert!(!neg_inf.is_nan()); -} - -#[test] -fn test_is_infinite() { - let nan: f32 = f32::NAN; - let inf: f32 = f32::INFINITY; - let neg_inf: f32 = f32::NEG_INFINITY; - assert!(!nan.is_infinite()); - assert!(inf.is_infinite()); - assert!(neg_inf.is_infinite()); - assert!(!0.0f32.is_infinite()); - assert!(!42.8f32.is_infinite()); - assert!(!(-109.2f32).is_infinite()); -} - -#[test] -fn test_is_finite() { - let nan: f32 = f32::NAN; - let inf: f32 = f32::INFINITY; - let neg_inf: f32 = f32::NEG_INFINITY; - assert!(!nan.is_finite()); - assert!(!inf.is_finite()); - assert!(!neg_inf.is_finite()); - assert!(0.0f32.is_finite()); - assert!(42.8f32.is_finite()); - assert!((-109.2f32).is_finite()); -} - -#[test] -fn test_is_normal() { - let nan: f32 = f32::NAN; - let inf: f32 = f32::INFINITY; - let neg_inf: f32 = f32::NEG_INFINITY; - let zero: f32 = 0.0f32; - let neg_zero: f32 = -0.0; - assert!(!nan.is_normal()); - assert!(!inf.is_normal()); - assert!(!neg_inf.is_normal()); - assert!(!zero.is_normal()); - assert!(!neg_zero.is_normal()); - assert!(1f32.is_normal()); - assert!(1e-37f32.is_normal()); - assert!(!1e-38f32.is_normal()); -} - -#[test] -fn test_classify() { - let nan: f32 = f32::NAN; - let inf: f32 = f32::INFINITY; - let neg_inf: f32 = f32::NEG_INFINITY; - let zero: f32 = 0.0f32; - let neg_zero: f32 = -0.0; - assert_eq!(nan.classify(), Fp::Nan); - assert_eq!(inf.classify(), Fp::Infinite); - assert_eq!(neg_inf.classify(), Fp::Infinite); - assert_eq!(zero.classify(), Fp::Zero); - assert_eq!(neg_zero.classify(), Fp::Zero); - assert_eq!(1f32.classify(), Fp::Normal); - assert_eq!(1e-37f32.classify(), Fp::Normal); - assert_eq!(1e-38f32.classify(), Fp::Subnormal); -} - -#[test] fn test_abs() { assert_biteq!(f32::INFINITY.abs(), f32::INFINITY); assert_biteq!(1f32.abs(), 1f32); diff --git a/library/coretests/tests/floats/f64.rs b/library/coretests/tests/floats/f64.rs index 34af87c241e..735b7a76515 100644 --- a/library/coretests/tests/floats/f64.rs +++ b/library/coretests/tests/floats/f64.rs @@ -1,6 +1,5 @@ use core::f64; use core::f64::consts; -use core::num::FpCategory as Fp; use super::{assert_approx_eq, assert_biteq}; @@ -26,147 +25,6 @@ const NAN_MASK1: u64 = 0x000a_aaaa_aaaa_aaaa; const NAN_MASK2: u64 = 0x0005_5555_5555_5555; #[test] -fn test_num_f64() { - super::test_num(10f64, 2f64); -} - -#[test] -fn test_infinity() { - let inf: f64 = f64::INFINITY; - assert!(inf.is_infinite()); - assert!(!inf.is_finite()); - assert!(inf.is_sign_positive()); - assert!(!inf.is_sign_negative()); - assert!(!inf.is_nan()); - assert!(!inf.is_normal()); - assert_eq!(Fp::Infinite, inf.classify()); -} - -#[test] -fn test_neg_infinity() { - let neg_inf: f64 = f64::NEG_INFINITY; - assert!(neg_inf.is_infinite()); - assert!(!neg_inf.is_finite()); - assert!(!neg_inf.is_sign_positive()); - assert!(neg_inf.is_sign_negative()); - assert!(!neg_inf.is_nan()); - assert!(!neg_inf.is_normal()); - assert_eq!(Fp::Infinite, neg_inf.classify()); -} - -#[test] -fn test_zero() { - let zero: f64 = 0.0f64; - assert_biteq!(0.0, zero); - assert!(!zero.is_infinite()); - assert!(zero.is_finite()); - assert!(zero.is_sign_positive()); - assert!(!zero.is_sign_negative()); - assert!(!zero.is_nan()); - assert!(!zero.is_normal()); - assert_eq!(Fp::Zero, zero.classify()); -} - -#[test] -fn test_neg_zero() { - let neg_zero: f64 = -0.0; - assert_eq!(0.0, neg_zero); - assert_biteq!(-0.0, neg_zero); - assert!(!neg_zero.is_infinite()); - assert!(neg_zero.is_finite()); - assert!(!neg_zero.is_sign_positive()); - assert!(neg_zero.is_sign_negative()); - assert!(!neg_zero.is_nan()); - assert!(!neg_zero.is_normal()); - assert_eq!(Fp::Zero, neg_zero.classify()); -} - -#[test] -fn test_one() { - let one: f64 = 1.0f64; - assert_biteq!(1.0, one); - assert!(!one.is_infinite()); - assert!(one.is_finite()); - assert!(one.is_sign_positive()); - assert!(!one.is_sign_negative()); - assert!(!one.is_nan()); - assert!(one.is_normal()); - assert_eq!(Fp::Normal, one.classify()); -} - -#[test] -fn test_is_nan() { - let nan: f64 = f64::NAN; - let inf: f64 = f64::INFINITY; - let neg_inf: f64 = f64::NEG_INFINITY; - assert!(nan.is_nan()); - assert!(!0.0f64.is_nan()); - assert!(!5.3f64.is_nan()); - assert!(!(-10.732f64).is_nan()); - assert!(!inf.is_nan()); - assert!(!neg_inf.is_nan()); -} - -#[test] -fn test_is_infinite() { - let nan: f64 = f64::NAN; - let inf: f64 = f64::INFINITY; - let neg_inf: f64 = f64::NEG_INFINITY; - assert!(!nan.is_infinite()); - assert!(inf.is_infinite()); - assert!(neg_inf.is_infinite()); - assert!(!0.0f64.is_infinite()); - assert!(!42.8f64.is_infinite()); - assert!(!(-109.2f64).is_infinite()); -} - -#[test] -fn test_is_finite() { - let nan: f64 = f64::NAN; - let inf: f64 = f64::INFINITY; - let neg_inf: f64 = f64::NEG_INFINITY; - assert!(!nan.is_finite()); - assert!(!inf.is_finite()); - assert!(!neg_inf.is_finite()); - assert!(0.0f64.is_finite()); - assert!(42.8f64.is_finite()); - assert!((-109.2f64).is_finite()); -} - -#[test] -fn test_is_normal() { - let nan: f64 = f64::NAN; - let inf: f64 = f64::INFINITY; - let neg_inf: f64 = f64::NEG_INFINITY; - let zero: f64 = 0.0f64; - let neg_zero: f64 = -0.0; - assert!(!nan.is_normal()); - assert!(!inf.is_normal()); - assert!(!neg_inf.is_normal()); - assert!(!zero.is_normal()); - assert!(!neg_zero.is_normal()); - assert!(1f64.is_normal()); - assert!(1e-307f64.is_normal()); - assert!(!1e-308f64.is_normal()); -} - -#[test] -fn test_classify() { - let nan: f64 = f64::NAN; - let inf: f64 = f64::INFINITY; - let neg_inf: f64 = f64::NEG_INFINITY; - let zero: f64 = 0.0f64; - let neg_zero: f64 = -0.0; - assert_eq!(nan.classify(), Fp::Nan); - assert_eq!(inf.classify(), Fp::Infinite); - assert_eq!(neg_inf.classify(), Fp::Infinite); - assert_eq!(zero.classify(), Fp::Zero); - assert_eq!(neg_zero.classify(), Fp::Zero); - assert_eq!(1e-307f64.classify(), Fp::Normal); - assert_eq!(1e-308f64.classify(), Fp::Subnormal); -} - -#[test] fn test_abs() { assert_biteq!(f64::INFINITY.abs(), f64::INFINITY); assert_biteq!(1f64.abs(), 1f64); diff --git a/library/coretests/tests/floats/mod.rs b/library/coretests/tests/floats/mod.rs index 36743a7d6df..43431bba695 100644 --- a/library/coretests/tests/floats/mod.rs +++ b/library/coretests/tests/floats/mod.rs @@ -1,28 +1,40 @@ -use std::fmt; use std::num::FpCategory as Fp; use std::ops::{Add, Div, Mul, Rem, Sub}; -/// Set the default tolerance for float comparison based on the type. -trait Approx { - const LIM: Self; +trait TestableFloat { + /// Set the default tolerance for float comparison based on the type. + const APPROX: Self; + const MIN_POSITIVE_NORMAL: Self; + const MAX_SUBNORMAL: Self; } -impl Approx for f16 { - const LIM: Self = 1e-3; +impl TestableFloat for f16 { + const APPROX: Self = 1e-3; + const MIN_POSITIVE_NORMAL: Self = Self::MIN_POSITIVE; + const MAX_SUBNORMAL: Self = Self::MIN_POSITIVE.next_down(); } -impl Approx for f32 { - const LIM: Self = 1e-6; + +impl TestableFloat for f32 { + const APPROX: Self = 1e-6; + const MIN_POSITIVE_NORMAL: Self = Self::MIN_POSITIVE; + const MAX_SUBNORMAL: Self = Self::MIN_POSITIVE.next_down(); } -impl Approx for f64 { - const LIM: Self = 1e-6; + +impl TestableFloat for f64 { + const APPROX: Self = 1e-6; + const MIN_POSITIVE_NORMAL: Self = Self::MIN_POSITIVE; + const MAX_SUBNORMAL: Self = Self::MIN_POSITIVE.next_down(); } -impl Approx for f128 { - const LIM: Self = 1e-9; + +impl TestableFloat for f128 { + const APPROX: Self = 1e-9; + const MIN_POSITIVE_NORMAL: Self = Self::MIN_POSITIVE; + const MAX_SUBNORMAL: Self = Self::MIN_POSITIVE.next_down(); } /// Determine the tolerance for values of the argument type. -const fn lim_for_ty<T: Approx + Copy>(_x: T) -> T { - T::LIM +const fn lim_for_ty<T: TestableFloat + Copy>(_x: T) -> T { + T::APPROX } // We have runtime ("rt") and const versions of these macros. @@ -187,9 +199,11 @@ macro_rules! float_test { $( $( #[$const_meta] )+ )? mod const_ { #[allow(unused)] - use super::Approx; + use super::TestableFloat; #[allow(unused)] use std::num::FpCategory as Fp; + #[allow(unused)] + use std::ops::{Add, Div, Mul, Rem, Sub}; // Shadow the runtime versions of the macro with const-compatible versions. #[allow(unused)] use $crate::floats::{ @@ -229,31 +243,43 @@ macro_rules! float_test { }; } -/// Helper function for testing numeric operations -pub fn test_num<T>(ten: T, two: T) -where - T: PartialEq - + Add<Output = T> - + Sub<Output = T> - + Mul<Output = T> - + Div<Output = T> - + Rem<Output = T> - + fmt::Debug - + Copy, -{ - assert_eq!(ten.add(two), ten + two); - assert_eq!(ten.sub(two), ten - two); - assert_eq!(ten.mul(two), ten * two); - assert_eq!(ten.div(two), ten / two); - assert_eq!(ten.rem(two), ten % two); -} - mod f128; mod f16; mod f32; mod f64; float_test! { + name: num, + attrs: { + f16: #[cfg(any(miri, target_has_reliable_f16))], + f128: #[cfg(any(miri, target_has_reliable_f128))], + }, + test<Float> { + let two: Float = 2.0; + let ten: Float = 10.0; + assert_biteq!(ten.add(two), ten + two); + assert_biteq!(ten.sub(two), ten - two); + assert_biteq!(ten.mul(two), ten * two); + assert_biteq!(ten.div(two), ten / two); + } +} + +// FIXME(f16_f128): merge into `num` once the required `fmodl`/`fmodf128` function is available on +// all platforms. +float_test! { + name: num_rem, + attrs: { + f16: #[cfg(any(miri, target_has_reliable_f16_math))], + f128: #[cfg(any(miri, target_has_reliable_f128_math))], + }, + test<Float> { + let two: Float = 2.0; + let ten: Float = 10.0; + assert_biteq!(ten.rem(two), ten % two); + } +} + +float_test! { name: nan, attrs: { f16: #[cfg(any(miri, target_has_reliable_f16))], @@ -274,6 +300,213 @@ float_test! { } float_test! { + name: infinity, + attrs: { + f16: #[cfg(any(miri, target_has_reliable_f16))], + f128: #[cfg(any(miri, target_has_reliable_f128))], + }, + test<Float> { + let inf: Float = Float::INFINITY; + assert!(inf.is_infinite()); + assert!(!inf.is_finite()); + assert!(inf.is_sign_positive()); + assert!(!inf.is_sign_negative()); + assert!(!inf.is_nan()); + assert!(!inf.is_normal()); + assert!(matches!(inf.classify(), Fp::Infinite)); + } +} + +float_test! { + name: neg_infinity, + attrs: { + f16: #[cfg(any(miri, target_has_reliable_f16))], + f128: #[cfg(any(miri, target_has_reliable_f128))], + }, + test<Float> { + let neg_inf: Float = Float::NEG_INFINITY; + assert!(neg_inf.is_infinite()); + assert!(!neg_inf.is_finite()); + assert!(!neg_inf.is_sign_positive()); + assert!(neg_inf.is_sign_negative()); + assert!(!neg_inf.is_nan()); + assert!(!neg_inf.is_normal()); + assert!(matches!(neg_inf.classify(), Fp::Infinite)); + } +} + +float_test! { + name: zero, + attrs: { + f16: #[cfg(any(miri, target_has_reliable_f16))], + f128: #[cfg(any(miri, target_has_reliable_f128))], + }, + test<Float> { + let zero: Float = 0.0; + assert_biteq!(0.0, zero); + assert!(!zero.is_infinite()); + assert!(zero.is_finite()); + assert!(zero.is_sign_positive()); + assert!(!zero.is_sign_negative()); + assert!(!zero.is_nan()); + assert!(!zero.is_normal()); + assert!(matches!(zero.classify(), Fp::Zero)); + } +} + +float_test! { + name: neg_zero, + attrs: { + f16: #[cfg(any(miri, target_has_reliable_f16))], + f128: #[cfg(any(miri, target_has_reliable_f128))], + }, + test<Float> { + let neg_zero: Float = -0.0; + assert!(0.0 == neg_zero); + assert_biteq!(-0.0, neg_zero); + assert!(!neg_zero.is_infinite()); + assert!(neg_zero.is_finite()); + assert!(!neg_zero.is_sign_positive()); + assert!(neg_zero.is_sign_negative()); + assert!(!neg_zero.is_nan()); + assert!(!neg_zero.is_normal()); + assert!(matches!(neg_zero.classify(), Fp::Zero)); + } +} + +float_test! { + name: one, + attrs: { + f16: #[cfg(any(miri, target_has_reliable_f16))], + f128: #[cfg(any(miri, target_has_reliable_f128))], + }, + test<Float> { + let one: Float = 1.0; + assert_biteq!(1.0, one); + assert!(!one.is_infinite()); + assert!(one.is_finite()); + assert!(one.is_sign_positive()); + assert!(!one.is_sign_negative()); + assert!(!one.is_nan()); + assert!(one.is_normal()); + assert!(matches!(one.classify(), Fp::Normal)); + } +} + +float_test! { + name: is_nan, + attrs: { + f16: #[cfg(any(miri, target_has_reliable_f16))], + f128: #[cfg(any(miri, target_has_reliable_f128))], + }, + test<Float> { + let nan: Float = Float::NAN; + let inf: Float = Float::INFINITY; + let neg_inf: Float = Float::NEG_INFINITY; + let zero: Float = 0.0; + let pos: Float = 5.3; + let neg: Float = -10.732; + assert!(nan.is_nan()); + assert!(!zero.is_nan()); + assert!(!pos.is_nan()); + assert!(!neg.is_nan()); + assert!(!inf.is_nan()); + assert!(!neg_inf.is_nan()); + } +} + +float_test! { + name: is_infinite, + attrs: { + f16: #[cfg(any(miri, target_has_reliable_f16))], + f128: #[cfg(any(miri, target_has_reliable_f128))], + }, + test<Float> { + let nan: Float = Float::NAN; + let inf: Float = Float::INFINITY; + let neg_inf: Float = Float::NEG_INFINITY; + let zero: Float = 0.0; + let pos: Float = 42.8; + let neg: Float = -109.2; + assert!(!nan.is_infinite()); + assert!(inf.is_infinite()); + assert!(neg_inf.is_infinite()); + assert!(!zero.is_infinite()); + assert!(!pos.is_infinite()); + assert!(!neg.is_infinite()); + } +} + +float_test! { + name: is_finite, + attrs: { + f16: #[cfg(any(miri, target_has_reliable_f16))], + f128: #[cfg(any(miri, target_has_reliable_f128))], + }, + test<Float> { + let nan: Float = Float::NAN; + let inf: Float = Float::INFINITY; + let neg_inf: Float = Float::NEG_INFINITY; + let zero: Float = 0.0; + let pos: Float = 42.8; + let neg: Float = -109.2; + assert!(!nan.is_finite()); + assert!(!inf.is_finite()); + assert!(!neg_inf.is_finite()); + assert!(zero.is_finite()); + assert!(pos.is_finite()); + assert!(neg.is_finite()); + } +} + +float_test! { + name: is_normal, + attrs: { + f16: #[cfg(any(miri, target_has_reliable_f16))], + f128: #[cfg(any(miri, target_has_reliable_f128))], + }, + test<Float> { + let nan: Float = Float::NAN; + let inf: Float = Float::INFINITY; + let neg_inf: Float = Float::NEG_INFINITY; + let zero: Float = 0.0; + let neg_zero: Float = -0.0; + let one : Float = 1.0; + assert!(!nan.is_normal()); + assert!(!inf.is_normal()); + assert!(!neg_inf.is_normal()); + assert!(!zero.is_normal()); + assert!(!neg_zero.is_normal()); + assert!(one.is_normal()); + assert!(Float::MIN_POSITIVE_NORMAL.is_normal()); + assert!(!Float::MAX_SUBNORMAL.is_normal()); + } +} + +float_test! { + name: classify, + attrs: { + f16: #[cfg(any(miri, target_has_reliable_f16))], + }, + test<Float> { + let nan: Float = Float::NAN; + let inf: Float = Float::INFINITY; + let neg_inf: Float = Float::NEG_INFINITY; + let zero: Float = 0.0; + let neg_zero: Float = -0.0; + let one: Float = 1.0; + assert!(matches!(nan.classify(), Fp::Nan)); + assert!(matches!(inf.classify(), Fp::Infinite)); + assert!(matches!(neg_inf.classify(), Fp::Infinite)); + assert!(matches!(zero.classify(), Fp::Zero)); + assert!(matches!(neg_zero.classify(), Fp::Zero)); + assert!(matches!(one.classify(), Fp::Normal)); + assert!(matches!(Float::MIN_POSITIVE_NORMAL.classify(), Fp::Normal)); + assert!(matches!(Float::MAX_SUBNORMAL.classify(), Fp::Subnormal)); + } +} + +float_test! { name: min, attrs: { f16: #[cfg(any(miri, target_has_reliable_f16_math))], diff --git a/library/coretests/tests/io/borrowed_buf.rs b/library/coretests/tests/io/borrowed_buf.rs index 73dbfaf5ee9..4074148436c 100644 --- a/library/coretests/tests/io/borrowed_buf.rs +++ b/library/coretests/tests/io/borrowed_buf.rs @@ -61,7 +61,7 @@ fn clear() { assert_eq!(rbuf.filled().len(), 0); assert_eq!(rbuf.unfilled().capacity(), 16); - assert_eq!(rbuf.unfilled().init_ref(), [255; 16]); + assert_eq!(rbuf.unfilled().init_mut(), [255; 16]); } #[test] @@ -124,7 +124,7 @@ fn reborrow_written() { assert_eq!(cursor2.written(), 32); assert_eq!(cursor.written(), 32); - assert_eq!(buf.unfilled().written(), 0); + assert_eq!(buf.unfilled().written(), 32); assert_eq!(buf.init_len(), 32); assert_eq!(buf.filled().len(), 32); let filled = buf.filled(); @@ -142,9 +142,7 @@ fn cursor_set_init() { } assert_eq!(rbuf.init_len(), 8); - assert_eq!(rbuf.unfilled().init_ref().len(), 8); assert_eq!(rbuf.unfilled().init_mut().len(), 8); - assert_eq!(rbuf.unfilled().uninit_mut().len(), 8); assert_eq!(unsafe { rbuf.unfilled().as_mut().len() }, 16); rbuf.unfilled().advance(4); @@ -160,9 +158,7 @@ fn cursor_set_init() { } assert_eq!(rbuf.init_len(), 12); - assert_eq!(rbuf.unfilled().init_ref().len(), 8); assert_eq!(rbuf.unfilled().init_mut().len(), 8); - assert_eq!(rbuf.unfilled().uninit_mut().len(), 4); assert_eq!(unsafe { rbuf.unfilled().as_mut().len() }, 12); } diff --git a/library/coretests/tests/lib.rs b/library/coretests/tests/lib.rs index fdef736c0c0..e2249bd7f6a 100644 --- a/library/coretests/tests/lib.rs +++ b/library/coretests/tests/lib.rs @@ -20,6 +20,7 @@ #![feature(const_destruct)] #![feature(const_eval_select)] #![feature(const_float_round_methods)] +#![feature(const_ops)] #![feature(const_ref_cell)] #![feature(const_trait_impl)] #![feature(core_float_math)] diff --git a/library/proc_macro/Cargo.toml b/library/proc_macro/Cargo.toml index 8ea92088a84..0042a6e8ece 100644 --- a/library/proc_macro/Cargo.toml +++ b/library/proc_macro/Cargo.toml @@ -9,7 +9,7 @@ std = { path = "../std" } # `core` when resolving doc links. Without this line a different `core` will be # loaded from sysroot causing duplicate lang items and other similar errors. core = { path = "../core" } -rustc-literal-escaper = { version = "0.0.4", features = ["rustc-dep-of-std"] } +rustc-literal-escaper = { version = "0.0.5", features = ["rustc-dep-of-std"] } [features] default = ["rustc-dep-of-std"] diff --git a/library/proc_macro/src/lib.rs b/library/proc_macro/src/lib.rs index ff326342989..162b4fdcc8a 100644 --- a/library/proc_macro/src/lib.rs +++ b/library/proc_macro/src/lib.rs @@ -1471,11 +1471,11 @@ impl Literal { let mut error = None; let mut buf = Vec::with_capacity(symbol.len()); - unescape_c_str(symbol, |_span, c| match c { + unescape_c_str(symbol, |_span, res| match res { Ok(MixedUnit::Char(c)) => { - buf.extend_from_slice(c.encode_utf8(&mut [0; 4]).as_bytes()) + buf.extend_from_slice(c.get().encode_utf8(&mut [0; 4]).as_bytes()) } - Ok(MixedUnit::HighByte(b)) => buf.push(b), + Ok(MixedUnit::HighByte(b)) => buf.push(b.get()), Err(err) => { if err.is_fatal() { error = Some(ConversionErrorKind::FailedToUnescape(err)); diff --git a/library/std/Cargo.toml b/library/std/Cargo.toml index 86d23df5238..5c3132a7375 100644 --- a/library/std/Cargo.toml +++ b/library/std/Cargo.toml @@ -23,7 +23,7 @@ unwind = { path = "../unwind" } hashbrown = { version = "0.15", default-features = false, features = [ 'rustc-dep-of-std', ] } -std_detect = { path = "../stdarch/crates/std_detect", default-features = false, features = [ +std_detect = { path = "../stdarch/crates/std_detect", public = true, default-features = false, features = [ 'rustc-dep-of-std', ] } diff --git a/library/std/src/io/mod.rs b/library/std/src/io/mod.rs index 17c32d7a571..d351ee5e739 100644 --- a/library/std/src/io/mod.rs +++ b/library/std/src/io/mod.rs @@ -489,7 +489,7 @@ pub(crate) fn default_read_to_end<R: Read + ?Sized>( } }; - let unfilled_but_initialized = cursor.init_ref().len(); + let unfilled_but_initialized = cursor.init_mut().len(); let bytes_read = cursor.written(); let was_fully_initialized = read_buf.init_len() == buf_len; @@ -3053,7 +3053,7 @@ impl<T: Read> Read for Take<T> { // The condition above guarantees that `self.limit` fits in `usize`. let limit = self.limit as usize; - let extra_init = cmp::min(limit, buf.init_ref().len()); + let extra_init = cmp::min(limit, buf.init_mut().len()); // SAFETY: no uninit data is written to ibuf let ibuf = unsafe { &mut buf.as_mut()[..limit] }; @@ -3068,7 +3068,7 @@ impl<T: Read> Read for Take<T> { let mut cursor = sliced_buf.unfilled(); let result = self.inner.read_buf(cursor.reborrow()); - let new_init = cursor.init_ref().len(); + let new_init = cursor.init_mut().len(); let filled = sliced_buf.len(); // cursor / sliced_buf / ibuf must drop here diff --git a/library/std/src/prelude/v1.rs b/library/std/src/prelude/v1.rs index 69f03353153..70c11131556 100644 --- a/library/std/src/prelude/v1.rs +++ b/library/std/src/prelude/v1.rs @@ -67,7 +67,7 @@ pub use core::prelude::v1::{ alloc_error_handler, bench, derive, global_allocator, test, test_case, }; -#[unstable(feature = "derive_const", issue = "none")] +#[unstable(feature = "derive_const", issue = "118304")] pub use core::prelude::v1::derive_const; // Do not `doc(no_inline)` either. diff --git a/library/std/src/sync/poison.rs b/library/std/src/sync/poison.rs index 571f0d14248..0c05f152ef8 100644 --- a/library/std/src/sync/poison.rs +++ b/library/std/src/sync/poison.rs @@ -10,7 +10,7 @@ //! (some invariant is not being upheld). //! //! The specifics of how this "poisoned" state affects other threads -//! depend on the primitive. See [#Overview] bellow. +//! depend on the primitive. See [#Overview] below. //! //! For the alternative implementations that do not employ poisoning, //! see `std::sync::nonpoisoning`. diff --git a/library/std/src/sys/pal/windows/c.rs b/library/std/src/sys/pal/windows/c.rs index eee169d410a..edac5262a4e 100644 --- a/library/std/src/sys/pal/windows/c.rs +++ b/library/std/src/sys/pal/windows/c.rs @@ -197,7 +197,7 @@ compat_fn_optional! { pub fn WakeByAddressSingle(address: *const c_void); } -#[cfg(any(target_vendor = "win7", target_vendor = "uwp"))] +#[cfg(any(target_vendor = "win7"))] compat_fn_with_fallback! { pub static NTDLL: &CStr = c"ntdll"; @@ -228,65 +228,14 @@ compat_fn_with_fallback! { ) -> NTSTATUS { panic!("keyed events not available") } +} - // These functions are available on UWP when lazily loaded. They will fail WACK if loaded statically. - #[cfg(target_vendor = "uwp")] - pub fn NtCreateFile( - filehandle: *mut HANDLE, - desiredaccess: FILE_ACCESS_RIGHTS, - objectattributes: *const OBJECT_ATTRIBUTES, - iostatusblock: *mut IO_STATUS_BLOCK, - allocationsize: *const i64, - fileattributes: FILE_FLAGS_AND_ATTRIBUTES, - shareaccess: FILE_SHARE_MODE, - createdisposition: NTCREATEFILE_CREATE_DISPOSITION, - createoptions: NTCREATEFILE_CREATE_OPTIONS, - eabuffer: *const c_void, - ealength: u32 - ) -> NTSTATUS { - STATUS_NOT_IMPLEMENTED - } - #[cfg(target_vendor = "uwp")] - pub fn NtOpenFile( - filehandle: *mut HANDLE, - desiredaccess: u32, - objectattributes: *const OBJECT_ATTRIBUTES, - iostatusblock: *mut IO_STATUS_BLOCK, - shareaccess: u32, - openoptions: u32 - ) -> NTSTATUS { - STATUS_NOT_IMPLEMENTED - } - #[cfg(target_vendor = "uwp")] - pub fn NtReadFile( - filehandle: HANDLE, - event: HANDLE, - apcroutine: PIO_APC_ROUTINE, - apccontext: *const c_void, - iostatusblock: *mut IO_STATUS_BLOCK, - buffer: *mut c_void, - length: u32, - byteoffset: *const i64, - key: *const u32 - ) -> NTSTATUS { - STATUS_NOT_IMPLEMENTED - } - #[cfg(target_vendor = "uwp")] - pub fn NtWriteFile( - filehandle: HANDLE, - event: HANDLE, - apcroutine: PIO_APC_ROUTINE, - apccontext: *const c_void, - iostatusblock: *mut IO_STATUS_BLOCK, - buffer: *const c_void, - length: u32, - byteoffset: *const i64, - key: *const u32 - ) -> NTSTATUS { - STATUS_NOT_IMPLEMENTED - } - #[cfg(target_vendor = "uwp")] - pub fn RtlNtStatusToDosError(Status: NTSTATUS) -> u32 { - Status as u32 +cfg_if::cfg_if! { + if #[cfg(target_vendor = "uwp")] { + windows_targets::link_raw_dylib!("ntdll.dll" "system" fn NtCreateFile(filehandle : *mut HANDLE, desiredaccess : FILE_ACCESS_RIGHTS, objectattributes : *const OBJECT_ATTRIBUTES, iostatusblock : *mut IO_STATUS_BLOCK, allocationsize : *const i64, fileattributes : FILE_FLAGS_AND_ATTRIBUTES, shareaccess : FILE_SHARE_MODE, createdisposition : NTCREATEFILE_CREATE_DISPOSITION, createoptions : NTCREATEFILE_CREATE_OPTIONS, eabuffer : *const core::ffi::c_void, ealength : u32) -> NTSTATUS); + windows_targets::link_raw_dylib!("ntdll.dll" "system" fn NtOpenFile(filehandle : *mut HANDLE, desiredaccess : u32, objectattributes : *const OBJECT_ATTRIBUTES, iostatusblock : *mut IO_STATUS_BLOCK, shareaccess : u32, openoptions : u32) -> NTSTATUS); + windows_targets::link_raw_dylib!("ntdll.dll" "system" fn NtReadFile(filehandle : HANDLE, event : HANDLE, apcroutine : PIO_APC_ROUTINE, apccontext : *const core::ffi::c_void, iostatusblock : *mut IO_STATUS_BLOCK, buffer : *mut core::ffi::c_void, length : u32, byteoffset : *const i64, key : *const u32) -> NTSTATUS); + windows_targets::link_raw_dylib!("ntdll.dll" "system" fn NtWriteFile(filehandle : HANDLE, event : HANDLE, apcroutine : PIO_APC_ROUTINE, apccontext : *const core::ffi::c_void, iostatusblock : *mut IO_STATUS_BLOCK, buffer : *const core::ffi::c_void, length : u32, byteoffset : *const i64, key : *const u32) -> NTSTATUS); + windows_targets::link_raw_dylib!("ntdll.dll" "system" fn RtlNtStatusToDosError(status : NTSTATUS) -> u32); } } diff --git a/library/std/src/thread/local.rs b/library/std/src/thread/local.rs index 7cd44873313..0ad014ccd3e 100644 --- a/library/std/src/thread/local.rs +++ b/library/std/src/thread/local.rs @@ -469,6 +469,29 @@ impl<T: 'static> LocalKey<Cell<T>> { pub fn replace(&'static self, value: T) -> T { self.with(|cell| cell.replace(value)) } + + /// Updates the contained value using a function. + /// + /// # Examples + /// + /// ``` + /// #![feature(local_key_cell_update)] + /// use std::cell::Cell; + /// + /// thread_local! { + /// static X: Cell<i32> = const { Cell::new(5) }; + /// } + /// + /// X.update(|x| x + 1); + /// assert_eq!(X.get(), 6); + /// ``` + #[unstable(feature = "local_key_cell_update", issue = "143989")] + pub fn update(&'static self, f: impl FnOnce(T) -> T) + where + T: Copy, + { + self.with(|cell| cell.update(f)) + } } impl<T: 'static> LocalKey<RefCell<T>> { diff --git a/library/windows_targets/src/lib.rs b/library/windows_targets/src/lib.rs index bce54c5ffce..9e82e6a7200 100644 --- a/library/windows_targets/src/lib.rs +++ b/library/windows_targets/src/lib.rs @@ -7,8 +7,7 @@ #![feature(decl_macro)] #![feature(no_core)] -#[cfg(feature = "windows_raw_dylib")] -pub macro link { +pub macro link_raw_dylib { ($library:literal $abi:literal $($link_name:literal)? $(#[$doc:meta])? fn $($function:tt)*) => ( #[cfg_attr(not(target_arch = "x86"), link(name = $library, kind = "raw-dylib", modifiers = "+verbatim"))] #[cfg_attr(target_arch = "x86", link(name = $library, kind = "raw-dylib", modifiers = "+verbatim", import_name_type = "undecorated"))] @@ -18,6 +17,26 @@ pub macro link { } ) } + +pub macro link_dylib { + ($library:literal $abi:literal $($link_name:literal)? $(#[$doc:meta])? fn $($function:tt)*) => ( + // Note: the windows-targets crate uses a pre-built Windows.lib import library which we don't + // have in this repo. So instead we always link kernel32.lib and add the rest of the import + // libraries below by using an empty extern block. This works because extern blocks are not + // connected to the library given in the #[link] attribute. + #[link(name = "kernel32")] + unsafe extern $abi { + $(#[link_name=$link_name])? + pub fn $($function)*; + } + ) +} + +#[cfg(feature = "windows_raw_dylib")] +pub macro link($($tt:tt)*) { + $crate::link_raw_dylib!($($tt)*) +} + #[cfg(not(feature = "windows_raw_dylib"))] pub macro link { ($library:literal $abi:literal $($link_name:literal)? $(#[$doc:meta])? fn $($function:tt)*) => ( diff --git a/src/bootstrap/src/core/build_steps/gcc.rs b/src/bootstrap/src/core/build_steps/gcc.rs index 899e3fd9a45..d4cbbe60921 100644 --- a/src/bootstrap/src/core/build_steps/gcc.rs +++ b/src/bootstrap/src/core/build_steps/gcc.rs @@ -220,21 +220,18 @@ fn build_gcc(metadata: &Meta, builder: &Builder<'_>, target: TargetSelection) { t!(fs::create_dir_all(install_dir)); // GCC creates files (e.g. symlinks to the downloaded dependencies) - // in the source directory, which does not work with our CI setup, where we mount + // in the source directory, which does not work with our CI/Docker setup, where we mount // source directories as read-only on Linux. - // Therefore, as a part of the build in CI, we first copy the whole source directory - // to the build directory, and perform the build from there. - let src_dir = if builder.config.is_running_on_ci { - let src_dir = builder.gcc_out(target).join("src"); - if src_dir.exists() { - builder.remove_dir(&src_dir); - } - builder.create_dir(&src_dir); - builder.cp_link_r(root, &src_dir); - src_dir - } else { - root.clone() - }; + // And in general, we shouldn't be modifying the source directories if possible, even for local + // builds. + // Therefore, we first copy the whole source directory to the build directory, and perform the + // build from there. + let src_dir = builder.gcc_out(target).join("src"); + if src_dir.exists() { + builder.remove_dir(&src_dir); + } + builder.create_dir(&src_dir); + builder.cp_link_r(root, &src_dir); command(src_dir.join("contrib/download_prerequisites")).current_dir(&src_dir).run(builder); let mut configure_cmd = command(src_dir.join("configure")); diff --git a/src/bootstrap/src/core/config/config.rs b/src/bootstrap/src/core/config/config.rs index 28958b60fc3..22a75183404 100644 --- a/src/bootstrap/src/core/config/config.rs +++ b/src/bootstrap/src/core/config/config.rs @@ -697,7 +697,7 @@ impl Config { config.change_id = toml.change_id.inner; let Build { - mut description, + description, build, host, target, @@ -749,7 +749,7 @@ impl Config { compiletest_diff_tool, compiletest_use_stage0_libtest, tidy_extra_checks, - mut ccache, + ccache, exclude, } = toml.build.unwrap_or_default(); @@ -942,7 +942,7 @@ impl Config { config.rust_profile_use = flags_rust_profile_use; config.rust_profile_generate = flags_rust_profile_generate; - config.apply_rust_config(toml.rust, flags_warnings, &mut description); + config.apply_rust_config(toml.rust, flags_warnings); config.reproducible_artifacts = flags_reproducible_artifact; config.description = description; @@ -963,7 +963,7 @@ impl Config { config.channel = channel; } - config.apply_llvm_config(toml.llvm, &mut ccache); + config.apply_llvm_config(toml.llvm); config.apply_gcc_config(toml.gcc); diff --git a/src/bootstrap/src/core/config/toml/llvm.rs b/src/bootstrap/src/core/config/toml/llvm.rs index 4774e202bd8..1f0cecd145c 100644 --- a/src/bootstrap/src/core/config/toml/llvm.rs +++ b/src/bootstrap/src/core/config/toml/llvm.rs @@ -17,8 +17,6 @@ define_config! { tests: Option<bool> = "tests", enzyme: Option<bool> = "enzyme", plugins: Option<bool> = "plugins", - // FIXME: Remove this field at Q2 2025, it has been replaced by build.ccache - ccache: Option<StringOrBool> = "ccache", static_libstdcpp: Option<bool> = "static-libstdcpp", libzstd: Option<bool> = "libzstd", ninja: Option<bool> = "ninja", @@ -97,7 +95,6 @@ pub fn check_incompatible_options_for_ci_llvm( assertions: _, tests: _, plugins, - ccache: _, static_libstdcpp: _, libzstd, ninja: _, @@ -149,11 +146,7 @@ pub fn check_incompatible_options_for_ci_llvm( } impl Config { - pub fn apply_llvm_config( - &mut self, - toml_llvm: Option<Llvm>, - ccache: &mut Option<StringOrBool>, - ) { + pub fn apply_llvm_config(&mut self, toml_llvm: Option<Llvm>) { let mut llvm_tests = None; let mut llvm_enzyme = None; let mut llvm_offload = None; @@ -168,7 +161,6 @@ impl Config { tests, enzyme, plugins, - ccache: llvm_ccache, static_libstdcpp, libzstd, ninja, @@ -191,13 +183,7 @@ impl Config { download_ci_llvm, build_config, } = llvm; - if llvm_ccache.is_some() { - eprintln!("Warning: llvm.ccache is deprecated. Use build.ccache instead."); - } - if ccache.is_none() { - *ccache = llvm_ccache; - } set(&mut self.ninja_in_file, ninja); llvm_tests = tests; llvm_enzyme = enzyme; diff --git a/src/bootstrap/src/core/config/toml/rust.rs b/src/bootstrap/src/core/config/toml/rust.rs index 0fae235bb93..71fab0e6ae6 100644 --- a/src/bootstrap/src/core/config/toml/rust.rs +++ b/src/bootstrap/src/core/config/toml/rust.rs @@ -36,8 +36,6 @@ define_config! { incremental: Option<bool> = "incremental", default_linker: Option<String> = "default-linker", channel: Option<String> = "channel", - // FIXME: Remove this field at Q2 2025, it has been replaced by build.description - description: Option<String> = "description", musl_root: Option<String> = "musl-root", rpath: Option<bool> = "rpath", strip: Option<bool> = "strip", @@ -320,7 +318,6 @@ pub fn check_incompatible_options_for_ci_rustc( jemalloc, rpath, channel, - description, default_linker, std_features, @@ -388,7 +385,6 @@ pub fn check_incompatible_options_for_ci_rustc( err!(current_rust_config.std_features, std_features, "rust"); warn!(current_rust_config.channel, channel, "rust"); - warn!(current_rust_config.description, description, "rust"); Ok(()) } @@ -415,12 +411,7 @@ pub(crate) fn validate_codegen_backends(backends: Vec<String>, section: &str) -> } impl Config { - pub fn apply_rust_config( - &mut self, - toml_rust: Option<Rust>, - warnings: Warnings, - description: &mut Option<String>, - ) { + pub fn apply_rust_config(&mut self, toml_rust: Option<Rust>, warnings: Warnings) { let mut debug = None; let mut rustc_debug_assertions = None; let mut std_debug_assertions = None; @@ -459,7 +450,6 @@ impl Config { randomize_layout, default_linker, channel: _, // already handled above - description: rust_description, musl_root, rpath, verbose_tests, @@ -541,6 +531,14 @@ impl Config { lld_enabled = lld_enabled_toml; std_features = std_features_toml; + if optimize_toml.as_ref().is_some_and(|v| matches!(v, RustOptimize::Bool(false))) { + eprintln!( + "WARNING: setting `optimize` to `false` is known to cause errors and \ + should be considered unsupported. Refer to `bootstrap.example.toml` \ + for more details." + ); + } + optimize = optimize_toml; self.rust_new_symbol_mangling = new_symbol_mangling; set(&mut self.rust_optimize_tests, optimize_tests); @@ -552,14 +550,6 @@ impl Config { set(&mut self.jemalloc, jemalloc); set(&mut self.test_compare_mode, test_compare_mode); set(&mut self.backtrace, backtrace); - if rust_description.is_some() { - eprintln!( - "Warning: rust.description is deprecated. Use build.description instead." - ); - } - if description.is_none() { - *description = rust_description; - } set(&mut self.rust_dist_src, dist_src); set(&mut self.verbose_tests, verbose_tests); // in the case "false" is set explicitly, do not overwrite the command line args diff --git a/src/bootstrap/src/utils/change_tracker.rs b/src/bootstrap/src/utils/change_tracker.rs index d888a7863bc..f802640a42d 100644 --- a/src/bootstrap/src/utils/change_tracker.rs +++ b/src/bootstrap/src/utils/change_tracker.rs @@ -481,4 +481,9 @@ pub const CONFIG_CHANGE_HISTORY: &[ChangeInfo] = &[ severity: ChangeSeverity::Warning, summary: "The current `./x suggest` implementation has been removed due to it being quite broken and a lack of maintenance bandwidth, with no prejudice against re-implementing it in a more maintainable form.", }, + ChangeInfo { + change_id: 143926, + severity: ChangeSeverity::Warning, + summary: "Removed `rust.description` and `llvm.ccache` as it was deprecated in #137723 and #136941 long time ago.", + }, ]; diff --git a/src/build_helper/src/lib.rs b/src/build_helper/src/lib.rs index 05de8fd2d42..266eedc6245 100644 --- a/src/build_helper/src/lib.rs +++ b/src/build_helper/src/lib.rs @@ -5,6 +5,7 @@ pub mod drop_bomb; pub mod fs; pub mod git; pub mod metrics; +pub mod npm; pub mod stage0_parser; pub mod targets; pub mod util; diff --git a/src/build_helper/src/npm.rs b/src/build_helper/src/npm.rs new file mode 100644 index 00000000000..dedef40978d --- /dev/null +++ b/src/build_helper/src/npm.rs @@ -0,0 +1,30 @@ +use std::error::Error; +use std::path::{Path, PathBuf}; +use std::process::Command; +use std::{fs, io}; + +/// Install an exact package version, and return the path of `node_modules`. +pub fn install_one( + out_dir: &Path, + npm_bin: &Path, + pkg_name: &str, + pkg_version: &str, +) -> Result<PathBuf, io::Error> { + let nm_path = out_dir.join("node_modules"); + let _ = fs::create_dir(&nm_path); + let mut child = Command::new(npm_bin) + .arg("install") + .arg("--audit=false") + .arg("--fund=false") + .arg(format!("{pkg_name}@{pkg_version}")) + .current_dir(out_dir) + .spawn()?; + let exit_status = child.wait()?; + if !exit_status.success() { + eprintln!("npm install did not exit successfully"); + return Err(io::Error::other(Box::<dyn Error + Send + Sync>::from(format!( + "npm install returned exit code {exit_status}" + )))); + } + Ok(nm_path) +} diff --git a/src/ci/docker/host-aarch64/aarch64-gnu-llvm-19/Dockerfile b/src/ci/docker/host-aarch64/aarch64-gnu-llvm-19/Dockerfile index 2f9d0010573..e73fbe506f7 100644 --- a/src/ci/docker/host-aarch64/aarch64-gnu-llvm-19/Dockerfile +++ b/src/ci/docker/host-aarch64/aarch64-gnu-llvm-19/Dockerfile @@ -50,9 +50,7 @@ ENV RUST_CONFIGURE_ARGS \ COPY scripts/shared.sh /scripts/ -ARG SCRIPT_ARG +COPY scripts/stage_2_test_set1.sh /scripts/ +COPY scripts/stage_2_test_set2.sh /scripts/ -COPY scripts/stage_2_test_set1.sh /tmp/ -COPY scripts/stage_2_test_set2.sh /tmp/ - -ENV SCRIPT "/tmp/${SCRIPT_ARG}" +ENV SCRIPT "Must specify DOCKER_SCRIPT for this image" diff --git a/src/ci/docker/host-x86_64/dist-x86_64-linux/Dockerfile b/src/ci/docker/host-x86_64/dist-x86_64-linux/Dockerfile index 44f6a8d2a15..01f19eac1d2 100644 --- a/src/ci/docker/host-x86_64/dist-x86_64-linux/Dockerfile +++ b/src/ci/docker/host-x86_64/dist-x86_64-linux/Dockerfile @@ -96,12 +96,10 @@ ENV RUST_CONFIGURE_ARGS \ --set rust.lto=thin \ --set rust.codegen-units=1 -ARG SCRIPT_ARG - COPY host-x86_64/dist-x86_64-linux/dist.sh /scripts/ COPY host-x86_64/dist-x86_64-linux/dist-alt.sh /scripts/ -ENV SCRIPT /scripts/${SCRIPT_ARG} +ENV SCRIPT "Must specify DOCKER_SCRIPT for this image" ENV CARGO_TARGET_X86_64_UNKNOWN_LINUX_GNU_LINKER=clang diff --git a/src/ci/docker/host-x86_64/i686-gnu-nopt/Dockerfile b/src/ci/docker/host-x86_64/i686-gnu-nopt/Dockerfile index 58e66fd637a..be3df9d4036 100644 --- a/src/ci/docker/host-x86_64/i686-gnu-nopt/Dockerfile +++ b/src/ci/docker/host-x86_64/i686-gnu-nopt/Dockerfile @@ -23,7 +23,7 @@ COPY scripts/sccache.sh /scripts/ RUN sh /scripts/sccache.sh ENV RUST_CONFIGURE_ARGS --build=i686-unknown-linux-gnu --disable-optimize-tests -ARG SCRIPT_ARG COPY scripts/stage_2_test_set1.sh /scripts/ COPY scripts/stage_2_test_set2.sh /scripts/ -ENV SCRIPT ${SCRIPT_ARG} +COPY scripts/i686-gnu-nopt-2.sh /scripts/ +ENV SCRIPT "Must specify DOCKER_SCRIPT for this image" diff --git a/src/ci/docker/host-x86_64/i686-gnu/Dockerfile b/src/ci/docker/host-x86_64/i686-gnu/Dockerfile index a715f7182d2..00cd24b89db 100644 --- a/src/ci/docker/host-x86_64/i686-gnu/Dockerfile +++ b/src/ci/docker/host-x86_64/i686-gnu/Dockerfile @@ -24,7 +24,6 @@ COPY scripts/sccache.sh /scripts/ RUN sh /scripts/sccache.sh ENV RUST_CONFIGURE_ARGS --build=i686-unknown-linux-gnu -ARG SCRIPT_ARG COPY scripts/stage_2_test_set1.sh /scripts/ COPY scripts/stage_2_test_set2.sh /scripts/ -ENV SCRIPT /scripts/${SCRIPT_ARG} +ENV SCRIPT "Must specify DOCKER_SCRIPT for this image" diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-19/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-19/Dockerfile index c09be047c6a..5cba7c564f1 100644 --- a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-19/Dockerfile +++ b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-19/Dockerfile @@ -57,12 +57,10 @@ ENV RUST_CONFIGURE_ARGS \ COPY scripts/shared.sh /scripts/ -ARG SCRIPT_ARG +COPY scripts/x86_64-gnu-llvm.sh /scripts/ +COPY scripts/x86_64-gnu-llvm2.sh /scripts/ +COPY scripts/x86_64-gnu-llvm3.sh /scripts/ +COPY scripts/stage_2_test_set1.sh /scripts/ +COPY scripts/stage_2_test_set2.sh /scripts/ -COPY scripts/x86_64-gnu-llvm.sh /tmp/ -COPY scripts/x86_64-gnu-llvm2.sh /tmp/ -COPY scripts/x86_64-gnu-llvm3.sh /tmp/ -COPY scripts/stage_2_test_set1.sh /tmp/ -COPY scripts/stage_2_test_set2.sh /tmp/ - -ENV SCRIPT "/tmp/${SCRIPT_ARG}" +ENV SCRIPT "Must specify DOCKER_SCRIPT for this image" diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-20/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-20/Dockerfile index 83a3bfb37a5..92c2631000f 100644 --- a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-20/Dockerfile +++ b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-20/Dockerfile @@ -57,12 +57,10 @@ ENV RUST_CONFIGURE_ARGS \ COPY scripts/shared.sh /scripts/ -ARG SCRIPT_ARG +COPY scripts/x86_64-gnu-llvm.sh /scripts/ +COPY scripts/x86_64-gnu-llvm2.sh /scripts/ +COPY scripts/x86_64-gnu-llvm3.sh /scripts/ +COPY scripts/stage_2_test_set1.sh /scripts/ +COPY scripts/stage_2_test_set2.sh /scripts/ -COPY scripts/x86_64-gnu-llvm.sh /tmp/ -COPY scripts/x86_64-gnu-llvm2.sh /tmp/ -COPY scripts/x86_64-gnu-llvm3.sh /tmp/ -COPY scripts/stage_2_test_set1.sh /tmp/ -COPY scripts/stage_2_test_set2.sh /tmp/ - -ENV SCRIPT "/tmp/${SCRIPT_ARG}" +ENV SCRIPT "Must specify DOCKER_SCRIPT for this image" diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-miri/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-miri/Dockerfile index b937bc3e678..ad2ee85c7bb 100644 --- a/src/ci/docker/host-x86_64/x86_64-gnu-miri/Dockerfile +++ b/src/ci/docker/host-x86_64/x86_64-gnu-miri/Dockerfile @@ -46,12 +46,4 @@ ENV HOST_TARGET x86_64-unknown-linux-gnu COPY scripts/shared.sh /scripts/ -# For now, we need to use `--unsafe-perm=true` to go around an issue when npm tries -# to create a new folder. For reference: -# https://github.com/puppeteer/puppeteer/issues/375 -# -# We also specify the version in case we need to update it to go around cache limitations. -# -# The `browser-ui-test.version` file is also used by bootstrap to emit warnings in case -# the local version of the package is different than the one used by the CI. ENV SCRIPT /tmp/check-miri.sh ../x.py diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile index e770c58bd9c..95357d22937 100644 --- a/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile +++ b/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile @@ -76,8 +76,6 @@ COPY scripts/nodejs.sh /scripts/ RUN sh /scripts/nodejs.sh /node ENV PATH="/node/bin:${PATH}" -COPY host-x86_64/x86_64-gnu-tools/browser-ui-test.version /tmp/ - ENV RUST_CONFIGURE_ARGS \ --build=x86_64-unknown-linux-gnu \ --save-toolstates=/tmp/toolstate/toolstates.json \ @@ -91,15 +89,6 @@ ENV HOST_TARGET x86_64-unknown-linux-gnu COPY scripts/shared.sh /scripts/ -# For now, we need to use `--unsafe-perm=true` to go around an issue when npm tries -# to create a new folder. For reference: -# https://github.com/puppeteer/puppeteer/issues/375 -# -# We also specify the version in case we need to update it to go around cache limitations. -# -# The `browser-ui-test.version` file is also used by bootstrap to emit warnings in case -# the local version of the package is different than the one used by the CI. ENV SCRIPT /tmp/checktools.sh ../x.py && \ - npm install browser-ui-test@$(head -n 1 /tmp/browser-ui-test.version) --unsafe-perm=true && \ python3 ../x.py check compiletest --set build.compiletest-use-stage0-libtest=true && \ python3 ../x.py test tests/rustdoc-gui --stage 2 --test-args "'--jobs 1'" diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-tools/browser-ui-test.version b/src/ci/docker/host-x86_64/x86_64-gnu-tools/browser-ui-test.version deleted file mode 100644 index b9f8e558df4..00000000000 --- a/src/ci/docker/host-x86_64/x86_64-gnu-tools/browser-ui-test.version +++ /dev/null @@ -1 +0,0 @@ -0.21.1 \ No newline at end of file diff --git a/src/ci/docker/run.sh b/src/ci/docker/run.sh index da7d084d48d..044f5a8fff3 100755 --- a/src/ci/docker/run.sh +++ b/src/ci/docker/run.sh @@ -114,14 +114,6 @@ if [ -f "$docker_dir/$image/Dockerfile" ]; then "$context" ) - # If the environment variable DOCKER_SCRIPT is defined, - # set the build argument SCRIPT_ARG to DOCKER_SCRIPT. - # In this way, we run the script defined in CI, - # instead of the one defined in the Dockerfile. - if [ -n "${DOCKER_SCRIPT+x}" ]; then - build_args+=("--build-arg" "SCRIPT_ARG=${DOCKER_SCRIPT}") - fi - GHCR_BUILDKIT_IMAGE="ghcr.io/rust-lang/buildkit:buildx-stable-1" # On non-CI jobs, we try to download a pre-built image from the rust-lang-ci # ghcr.io registry. If it is not possible, we fall back to building the image @@ -341,6 +333,10 @@ if [ "$ENABLE_GCC_CODEGEN" = "1" ]; then echo "Setting extra environment values for docker: $extra_env" fi +if [ -n "${DOCKER_SCRIPT}" ]; then + extra_env="$extra_env --env SCRIPT=\"/scripts/${DOCKER_SCRIPT}\"" +fi + docker \ run \ --workdir /checkout/obj \ diff --git a/src/ci/docker/scripts/i686-gnu-nopt-2.sh b/src/ci/docker/scripts/i686-gnu-nopt-2.sh new file mode 100755 index 00000000000..4c171739daf --- /dev/null +++ b/src/ci/docker/scripts/i686-gnu-nopt-2.sh @@ -0,0 +1,6 @@ +#!/bin/bash + +set -ex + +python3 ../x.py test --stage 1 --set rust.optimize=false library/std && +/scripts/stage_2_test_set2.sh diff --git a/src/ci/docker/scripts/x86_64-gnu-llvm2.sh b/src/ci/docker/scripts/x86_64-gnu-llvm2.sh index fe5382aaa48..0060b9bfd23 100755 --- a/src/ci/docker/scripts/x86_64-gnu-llvm2.sh +++ b/src/ci/docker/scripts/x86_64-gnu-llvm2.sh @@ -4,7 +4,7 @@ set -ex ##### Test stage 2 ##### -/tmp/stage_2_test_set1.sh +/scripts/stage_2_test_set1.sh # Run the `mir-opt` tests again but this time for a 32-bit target. # This enforces that tests using `// EMIT_MIR_FOR_EACH_BIT_WIDTH` have diff --git a/src/ci/github-actions/jobs.yml b/src/ci/github-actions/jobs.yml index 445fc0dd018..6c5e37b51ef 100644 --- a/src/ci/github-actions/jobs.yml +++ b/src/ci/github-actions/jobs.yml @@ -315,16 +315,14 @@ auto: - name: i686-gnu-nopt-1 env: IMAGE: i686-gnu-nopt - DOCKER_SCRIPT: /scripts/stage_2_test_set1.sh + DOCKER_SCRIPT: stage_2_test_set1.sh <<: *job-linux-4c # Skip tests that run in i686-gnu-nopt-1 - name: i686-gnu-nopt-2 env: IMAGE: i686-gnu-nopt - DOCKER_SCRIPT: >- - python3 ../x.py test --stage 1 --set rust.optimize=false library/std && - /scripts/stage_2_test_set2.sh + DOCKER_SCRIPT: i686-gnu-nopt-2.sh <<: *job-linux-4c - name: pr-check-1 diff --git a/src/doc/rustc-dev-guide/.github/workflows/rustc-pull.yml b/src/doc/rustc-dev-guide/.github/workflows/rustc-pull.yml index 1e430d8b4e6..ad570ee4595 100644 --- a/src/doc/rustc-dev-guide/.github/workflows/rustc-pull.yml +++ b/src/doc/rustc-dev-guide/.github/workflows/rustc-pull.yml @@ -9,106 +9,12 @@ on: jobs: pull: if: github.repository == 'rust-lang/rustc-dev-guide' - runs-on: ubuntu-latest - outputs: - pr_url: ${{ steps.update-pr.outputs.pr_url }} - permissions: - contents: write - pull-requests: write - steps: - - uses: actions/checkout@v4 - with: - # We need the full history for josh to work - fetch-depth: '0' - - name: Install stable Rust toolchain - run: rustup update stable - - uses: Swatinem/rust-cache@v2 - with: - workspaces: "josh-sync" - # Cache the josh directory with checked out rustc - cache-directories: "/home/runner/.cache/rustc-dev-guide-josh" - - name: Install josh - run: RUSTFLAGS="--cap-lints warn" cargo install josh-proxy --git https://github.com/josh-project/josh --tag r24.10.04 - - name: Setup bot git name and email - run: | - git config --global user.name 'The rustc-dev-guide Cronjob Bot' - git config --global user.email 'github-actions@github.com' - - name: Perform rustc-pull - id: rustc-pull - # Turn off -e to disable early exit - shell: bash {0} - run: | - cargo run --manifest-path josh-sync/Cargo.toml -- rustc-pull - exitcode=$? - - # If no pull was performed, we want to mark this job as successful, - # but we do not want to perform the follow-up steps. - if [ $exitcode -eq 0 ]; then - echo "pull_result=pull-finished" >> $GITHUB_OUTPUT - elif [ $exitcode -eq 2 ]; then - echo "pull_result=skipped" >> $GITHUB_OUTPUT - exitcode=0 - fi - - exit ${exitcode} - - name: Push changes to a branch - if: ${{ steps.rustc-pull.outputs.pull_result == 'pull-finished' }} - run: | - # Update a sticky branch that is used only for rustc pulls - BRANCH="rustc-pull" - git switch -c $BRANCH - git push -u origin $BRANCH --force - - name: Create pull request - id: update-pr - if: ${{ steps.rustc-pull.outputs.pull_result == 'pull-finished' }} - env: - GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} - run: | - # Check if an open pull request for an rustc pull update already exists - # If it does, the previous push has just updated it - # If not, we create it now - RESULT=`gh pr list --author github-actions[bot] --state open -q 'map(select(.title=="Rustc pull update")) | length' --json title` - if [[ "$RESULT" -eq 0 ]]; then - echo "Creating new pull request" - PR_URL=`gh pr create -B master --title 'Rustc pull update' --body 'Latest update from rustc.'` - echo "pr_url=$PR_URL" >> $GITHUB_OUTPUT - else - PR_URL=`gh pr list --author github-actions[bot] --state open -q 'map(select(.title=="Rustc pull update")) | .[0].url' --json url,title` - echo "Updating pull request ${PR_URL}" - echo "pr_url=$PR_URL" >> $GITHUB_OUTPUT - fi - send-zulip-message: - needs: [pull] - if: ${{ !cancelled() }} - runs-on: ubuntu-latest - steps: - - uses: actions/checkout@v4 - - name: Compute message - id: create-message - env: - GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} - run: | - if [ "${{ needs.pull.result }}" == "failure" ]; then - WORKFLOW_URL="${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}" - echo "message=Rustc pull sync failed. Check out the [workflow URL]($WORKFLOW_URL)." >> $GITHUB_OUTPUT - else - CREATED_AT=`gh pr list --author github-actions[bot] --state open -q 'map(select(.title=="Rustc pull update")) | .[0].createdAt' --json createdAt,title` - PR_URL=`gh pr list --author github-actions[bot] --state open -q 'map(select(.title=="Rustc pull update")) | .[0].url' --json url,title` - week_ago=$(date +%F -d '7 days ago') - - # If there is an open PR that is at least a week old, post a message about it - if [[ -n $DATE_GH && $DATE_GH < $week_ago ]]; then - echo "message=A PR with a Rustc pull has been opened for more a week. Check out the [PR](${PR_URL})." >> $GITHUB_OUTPUT - fi - fi - - name: Send a Zulip message about updated PR - if: ${{ steps.create-message.outputs.message != '' }} - uses: zulip/github-actions-zulip/send-message@e4c8f27c732ba9bd98ac6be0583096dea82feea5 - with: - api-key: ${{ secrets.ZULIP_API_TOKEN }} - email: "rustc-dev-guide-gha-notif-bot@rust-lang.zulipchat.com" - organization-url: "https://rust-lang.zulipchat.com" - to: 196385 - type: "stream" - topic: "Subtree sync automation" - content: ${{ steps.create-message.outputs.message }} + uses: rust-lang/josh-sync/.github/workflows/rustc-pull.yml@main + with: + zulip-stream-id: 196385 + zulip-bot-email: "rustc-dev-guide-gha-notif-bot@rust-lang.zulipchat.com" + pr-base-branch: master + branch-name: rustc-pull + secrets: + zulip-api-token: ${{ secrets.ZULIP_API_TOKEN }} + token: ${{ secrets.GITHUB_TOKEN }} diff --git a/src/doc/rustc-dev-guide/README.md b/src/doc/rustc-dev-guide/README.md index 0425c15f83c..5932da467ab 100644 --- a/src/doc/rustc-dev-guide/README.md +++ b/src/doc/rustc-dev-guide/README.md @@ -72,49 +72,6 @@ including the `<!-- toc -->` marker at the place where you want the TOC. ## Synchronizing josh subtree with rustc -This repository is linked to `rust-lang/rust` as a [josh](https://josh-project.github.io/josh/intro.html) subtree. You can use the following commands to synchronize the subtree in both directions. +This repository is linked to `rust-lang/rust` as a [josh](https://josh-project.github.io/josh/intro.html) subtree. You can use the [rustc-josh-sync](https://github.com/rust-lang/josh-sync) tool to perform synchronization. -You'll need to install `josh-proxy` locally via - -``` -cargo install josh-proxy --git https://github.com/josh-project/josh --tag r24.10.04 -``` -Older versions of `josh-proxy` may not round trip commits losslessly so it is important to install this exact version. - -### Pull changes from `rust-lang/rust` into this repository - -1) Checkout a new branch that will be used to create a PR into `rust-lang/rustc-dev-guide` -2) Run the pull command - ``` - cargo run --manifest-path josh-sync/Cargo.toml rustc-pull - ``` -3) Push the branch to your fork and create a PR into `rustc-dev-guide` - -### Push changes from this repository into `rust-lang/rust` - -NOTE: If you use Git protocol to push to your fork of `rust-lang/rust`, -ensure that you have this entry in your Git config, -else the 2 steps that follow would prompt for a username and password: - -``` -[url "git@github.com:"] -insteadOf = "https://github.com/" -``` - -1) Run the push command to create a branch named `<branch-name>` in a `rustc` fork under the `<gh-username>` account - ``` - cargo run --manifest-path josh-sync/Cargo.toml rustc-push <branch-name> <gh-username> - ``` -2) Create a PR from `<branch-name>` into `rust-lang/rust` - -#### Minimal git config - -For simplicity (ease of implementation purposes), the josh-sync script simply calls out to system git. This means that the git invocation may be influenced by global (or local) git configuration. - -You may observe "Nothing to pull" even if you *know* rustc-pull has something to pull if your global git config sets `fetch.prunetags = true` (and possibly other configurations may cause unexpected outcomes). - -To minimize the likelihood of this happening, you may wish to keep a separate *minimal* git config that *only* has `[user]` entries from global git config, then repoint system git to use the minimal git config instead. E.g. - -``` -GIT_CONFIG_GLOBAL=/path/to/minimal/gitconfig GIT_CONFIG_SYSTEM='' cargo run --manifest-path josh-sync/Cargo.toml -- rustc-pull -``` +You can find a guide on how to perform the synchronization [here](./src/external-repos.md#synchronizing-a-josh-subtree). diff --git a/src/doc/rustc-dev-guide/josh-sync/Cargo.lock b/src/doc/rustc-dev-guide/josh-sync/Cargo.lock deleted file mode 100644 index a8183a740db..00000000000 --- a/src/doc/rustc-dev-guide/josh-sync/Cargo.lock +++ /dev/null @@ -1,430 +0,0 @@ -# This file is automatically @generated by Cargo. -# It is not intended for manual editing. -version = 4 - -[[package]] -name = "anstream" -version = "0.6.18" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "8acc5369981196006228e28809f761875c0327210a891e941f4c683b3a99529b" -dependencies = [ - "anstyle", - "anstyle-parse", - "anstyle-query", - "anstyle-wincon", - "colorchoice", - "is_terminal_polyfill", - "utf8parse", -] - -[[package]] -name = "anstyle" -version = "1.0.10" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "55cc3b69f167a1ef2e161439aa98aed94e6028e5f9a59be9a6ffb47aef1651f9" - 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-See CLI help for usage. diff --git a/src/doc/rustc-dev-guide/josh-sync/src/main.rs b/src/doc/rustc-dev-guide/josh-sync/src/main.rs deleted file mode 100644 index aeedee5be22..00000000000 --- a/src/doc/rustc-dev-guide/josh-sync/src/main.rs +++ /dev/null @@ -1,41 +0,0 @@ -use clap::Parser; - -use crate::sync::{GitSync, RustcPullError}; - -mod sync; - -#[derive(clap::Parser)] -enum Args { - /// Pull changes from the main `rustc` repository. - /// This creates new commits that should be then merged into `rustc-dev-guide`. - RustcPull, - /// Push changes from `rustc-dev-guide` to the given `branch` of a `rustc` fork under the given - /// GitHub `username`. - /// The pushed branch should then be merged into the `rustc` repository. - RustcPush { branch: String, github_username: String }, -} - -fn main() -> anyhow::Result<()> { - let args = Args::parse(); - let sync = GitSync::from_current_dir()?; - match args { - Args::RustcPull => { - if let Err(error) = sync.rustc_pull(None) { - match error { - RustcPullError::NothingToPull => { - eprintln!("Nothing to pull"); - std::process::exit(2); - } - RustcPullError::PullFailed(error) => { - eprintln!("Pull failure: {error:?}"); - std::process::exit(1); - } - } - } - } - Args::RustcPush { github_username, branch } => { - sync.rustc_push(github_username, branch)?; - } - } - Ok(()) -} diff --git a/src/doc/rustc-dev-guide/josh-sync/src/sync.rs b/src/doc/rustc-dev-guide/josh-sync/src/sync.rs deleted file mode 100644 index ed38d1403a0..00000000000 --- a/src/doc/rustc-dev-guide/josh-sync/src/sync.rs +++ /dev/null @@ -1,275 +0,0 @@ -use std::io::Write; -use std::ops::Not; -use std::path::PathBuf; -use std::time::Duration; -use std::{env, net, process}; - -use anyhow::{Context, anyhow, bail}; -use xshell::{Shell, cmd}; - -/// Used for rustc syncs. -const JOSH_FILTER: &str = ":/src/doc/rustc-dev-guide"; -const JOSH_PORT: u16 = 42042; -const UPSTREAM_REPO: &str = "rust-lang/rust"; - -pub enum RustcPullError { - /// No changes are available to be pulled. - NothingToPull, - /// A rustc-pull has failed, probably a git operation error has occurred. - PullFailed(anyhow::Error), -} - -impl<E> From<E> for RustcPullError -where - E: Into<anyhow::Error>, -{ - fn from(error: E) -> Self { - Self::PullFailed(error.into()) - } -} - -pub struct GitSync { - dir: PathBuf, -} - -/// This code was adapted from the miri repository -/// (https://github.com/rust-lang/miri/blob/6a68a79f38064c3bc30617cca4bdbfb2c336b140/miri-script/src/commands.rs#L236). -impl GitSync { - pub fn from_current_dir() -> anyhow::Result<Self> { - Ok(Self { dir: std::env::current_dir()? }) - } - - pub fn rustc_pull(&self, commit: Option<String>) -> Result<(), RustcPullError> { - let sh = Shell::new()?; - sh.change_dir(&self.dir); - let commit = commit.map(Ok).unwrap_or_else(|| { - let rust_repo_head = - cmd!(sh, "git ls-remote https://github.com/{UPSTREAM_REPO}/ HEAD").read()?; - rust_repo_head - .split_whitespace() - .next() - .map(|front| front.trim().to_owned()) - .ok_or_else(|| anyhow!("Could not obtain Rust repo HEAD from remote.")) - })?; - // Make sure the repo is clean. - if cmd!(sh, "git status --untracked-files=no --porcelain").read()?.is_empty().not() { - return Err(anyhow::anyhow!( - "working directory must be clean before performing rustc pull" - ) - .into()); - } - // Make sure josh is running. - let josh = Self::start_josh()?; - let josh_url = - format!("http://localhost:{JOSH_PORT}/{UPSTREAM_REPO}.git@{commit}{JOSH_FILTER}.git"); - - let previous_base_commit = sh.read_file("rust-version")?.trim().to_string(); - if previous_base_commit == commit { - return Err(RustcPullError::NothingToPull); - } - - // Update rust-version file. As a separate commit, since making it part of - // the merge has confused the heck out of josh in the past. - // We pass `--no-verify` to avoid running git hooks. - // We do this before the merge so that if there are merge conflicts, we have - // the right rust-version file while resolving them. - sh.write_file("rust-version", format!("{commit}\n"))?; - const PREPARING_COMMIT_MESSAGE: &str = "Preparing for merge from rustc"; - cmd!(sh, "git commit rust-version --no-verify -m {PREPARING_COMMIT_MESSAGE}") - .run() - .context("FAILED to commit rust-version file, something went wrong")?; - - // Fetch given rustc commit. - cmd!(sh, "git fetch {josh_url}") - .run() - .inspect_err(|_| { - // Try to un-do the previous `git commit`, to leave the repo in the state we found it. - cmd!(sh, "git reset --hard HEAD^") - .run() - .expect("FAILED to clean up again after failed `git fetch`, sorry for that"); - }) - .context("FAILED to fetch new commits, something went wrong (committing the rust-version file has been undone)")?; - - // This should not add any new root commits. So count those before and after merging. - let num_roots = || -> anyhow::Result<u32> { - Ok(cmd!(sh, "git rev-list HEAD --max-parents=0 --count") - .read() - .context("failed to determine the number of root commits")? - .parse::<u32>()?) - }; - let num_roots_before = num_roots()?; - - let sha = - cmd!(sh, "git rev-parse HEAD").output().context("FAILED to get current commit")?.stdout; - - // Merge the fetched commit. - const MERGE_COMMIT_MESSAGE: &str = "Merge from rustc"; - cmd!(sh, "git merge FETCH_HEAD --no-verify --no-ff -m {MERGE_COMMIT_MESSAGE}") - .run() - .context("FAILED to merge new commits, something went wrong")?; - - let current_sha = - cmd!(sh, "git rev-parse HEAD").output().context("FAILED to get current commit")?.stdout; - if current_sha == sha { - cmd!(sh, "git reset --hard HEAD^") - .run() - .expect("FAILED to clean up after creating the preparation commit"); - eprintln!( - "No merge was performed, no changes to pull were found. Rolled back the preparation commit." - ); - return Err(RustcPullError::NothingToPull); - } - - // Check that the number of roots did not increase. - if num_roots()? != num_roots_before { - return Err(anyhow::anyhow!( - "Josh created a new root commit. This is probably not the history you want." - ) - .into()); - } - - drop(josh); - Ok(()) - } - - pub fn rustc_push(&self, github_user: String, branch: String) -> anyhow::Result<()> { - let sh = Shell::new()?; - sh.change_dir(&self.dir); - let base = sh.read_file("rust-version")?.trim().to_owned(); - // Make sure the repo is clean. - if cmd!(sh, "git status --untracked-files=no --porcelain").read()?.is_empty().not() { - bail!("working directory must be clean before running `rustc-push`"); - } - // Make sure josh is running. - let josh = Self::start_josh()?; - let josh_url = - format!("http://localhost:{JOSH_PORT}/{github_user}/rust.git{JOSH_FILTER}.git"); - - // Find a repo we can do our preparation in. - if let Ok(rustc_git) = env::var("RUSTC_GIT") { - // If rustc_git is `Some`, we'll use an existing fork for the branch updates. - sh.change_dir(rustc_git); - } else { - // Otherwise, do this in the local repo. - println!( - "This will pull a copy of the rust-lang/rust history into this checkout, growing it by about 1GB." - ); - print!( - "To avoid that, abort now and set the `RUSTC_GIT` environment variable to an existing rustc checkout. Proceed? [y/N] " - ); - std::io::stdout().flush()?; - let mut answer = String::new(); - std::io::stdin().read_line(&mut answer)?; - if answer.trim().to_lowercase() != "y" { - std::process::exit(1); - } - }; - // Prepare the branch. Pushing works much better if we use as base exactly - // the commit that we pulled from last time, so we use the `rust-version` - // file to find out which commit that would be. - println!("Preparing {github_user}/rust (base: {base})..."); - if cmd!(sh, "git fetch https://github.com/{github_user}/rust {branch}") - .ignore_stderr() - .read() - .is_ok() - { - println!( - "The branch '{branch}' seems to already exist in 'https://github.com/{github_user}/rust'. Please delete it and try again." - ); - std::process::exit(1); - } - cmd!(sh, "git fetch https://github.com/{UPSTREAM_REPO} {base}").run()?; - cmd!(sh, "git push https://github.com/{github_user}/rust {base}:refs/heads/{branch}") - .ignore_stdout() - .ignore_stderr() // silence the "create GitHub PR" message - .run()?; - println!(); - - // Do the actual push. - sh.change_dir(&self.dir); - println!("Pushing changes..."); - cmd!(sh, "git push {josh_url} HEAD:{branch}").run()?; - println!(); - - // Do a round-trip check to make sure the push worked as expected. - cmd!(sh, "git fetch {josh_url} {branch}").ignore_stderr().read()?; - let head = cmd!(sh, "git rev-parse HEAD").read()?; - let fetch_head = cmd!(sh, "git rev-parse FETCH_HEAD").read()?; - if head != fetch_head { - bail!( - "Josh created a non-roundtrip push! Do NOT merge this into rustc!\n\ - Expected {head}, got {fetch_head}." - ); - } - println!( - "Confirmed that the push round-trips back to rustc-dev-guide properly. Please create a rustc PR:" - ); - println!( - // Open PR with `subtree update` title to silence the `no-merges` triagebot check - " https://github.com/{UPSTREAM_REPO}/compare/{github_user}:{branch}?quick_pull=1&title=rustc-dev-guide+subtree+update&body=r?+@ghost" - ); - - drop(josh); - Ok(()) - } - - fn start_josh() -> anyhow::Result<impl Drop> { - // Determine cache directory. - let local_dir = { - let user_dirs = - directories::ProjectDirs::from("org", "rust-lang", "rustc-dev-guide-josh").unwrap(); - user_dirs.cache_dir().to_owned() - }; - - // Start josh, silencing its output. - let mut cmd = process::Command::new("josh-proxy"); - cmd.arg("--local").arg(local_dir); - cmd.arg("--remote").arg("https://github.com"); - cmd.arg("--port").arg(JOSH_PORT.to_string()); - cmd.arg("--no-background"); - cmd.stdout(process::Stdio::null()); - cmd.stderr(process::Stdio::null()); - let josh = cmd.spawn().context("failed to start josh-proxy, make sure it is installed")?; - - // Create a wrapper that stops it on drop. - struct Josh(process::Child); - impl Drop for Josh { - fn drop(&mut self) { - #[cfg(unix)] - { - // Try to gracefully shut it down. - process::Command::new("kill") - .args(["-s", "INT", &self.0.id().to_string()]) - .output() - .expect("failed to SIGINT josh-proxy"); - // Sadly there is no "wait with timeout"... so we just give it some time to finish. - std::thread::sleep(Duration::from_millis(100)); - // Now hopefully it is gone. - if self.0.try_wait().expect("failed to wait for josh-proxy").is_some() { - return; - } - } - // If that didn't work (or we're not on Unix), kill it hard. - eprintln!( - "I have to kill josh-proxy the hard way, let's hope this does not break anything." - ); - self.0.kill().expect("failed to SIGKILL josh-proxy"); - } - } - - // Wait until the port is open. We try every 10ms until 1s passed. - for _ in 0..100 { - // This will generally fail immediately when the port is still closed. - let josh_ready = net::TcpStream::connect_timeout( - &net::SocketAddr::from(([127, 0, 0, 1], JOSH_PORT)), - Duration::from_millis(1), - ); - if josh_ready.is_ok() { - return Ok(Josh(josh)); - } - // Not ready yet. - std::thread::sleep(Duration::from_millis(10)); - } - bail!("Even after waiting for 1s, josh-proxy is still not available.") - } -} diff --git a/src/doc/rustc-dev-guide/rust-version b/src/doc/rustc-dev-guide/rust-version index e444613e631..3f10132b684 100644 --- a/src/doc/rustc-dev-guide/rust-version +++ b/src/doc/rustc-dev-guide/rust-version @@ -1 +1 @@ -c96a69059ecc618b519da385a6ccd03155aa0237 +fd2eb391d032181459773f3498c17b198513e0d0 diff --git a/src/doc/rustc-dev-guide/src/autodiff/installation.md b/src/doc/rustc-dev-guide/src/autodiff/installation.md index c9b28dc43a6..a550f6d233e 100644 --- a/src/doc/rustc-dev-guide/src/autodiff/installation.md +++ b/src/doc/rustc-dev-guide/src/autodiff/installation.md @@ -6,14 +6,14 @@ In the near future, `std::autodiff` should become available in nightly builds fo First you need to clone and configure the Rust repository: ```bash -git clone --depth=1 git@github.com:rust-lang/rust.git +git clone git@github.com:rust-lang/rust cd rust ./configure --enable-llvm-link-shared --enable-llvm-plugins --enable-llvm-enzyme --release-channel=nightly --enable-llvm-assertions --enable-clang --enable-lld --enable-option-checking --enable-ninja --disable-docs ``` Afterwards you can build rustc using: ```bash -./x.py build --stage 1 library +./x build --stage 1 library ``` Afterwards rustc toolchain link will allow you to use it through cargo: @@ -25,10 +25,10 @@ rustup toolchain install nightly # enables -Z unstable-options You can then run our test cases: ```bash -./x.py test --stage 1 tests/codegen/autodiff -./x.py test --stage 1 tests/pretty/autodiff -./x.py test --stage 1 tests/ui/autodiff -./x.py test --stage 1 tests/ui/feature-gates/feature-gate-autodiff.rs +./x test --stage 1 tests/codegen/autodiff +./x test --stage 1 tests/pretty/autodiff +./x test --stage 1 tests/ui/autodiff +./x test --stage 1 tests/ui/feature-gates/feature-gate-autodiff.rs ``` Autodiff is still experimental, so if you want to use it in your own projects, you will need to add `lto="fat"` to your Cargo.toml @@ -45,7 +45,7 @@ apt install wget vim python3 git curl libssl-dev pkg-config lld ninja-build cmak ``` Then build rustc in a slightly altered way: ```bash -git clone --depth=1 https://github.com/rust-lang/rust.git +git clone https://github.com/rust-lang/rust cd rust ./configure --enable-llvm-link-shared --enable-llvm-plugins --enable-llvm-enzyme --release-channel=nightly --enable-llvm-assertions --enable-clang --enable-lld --enable-option-checking --enable-ninja --disable-docs ./x dist @@ -66,7 +66,7 @@ We recommend that approach, if you just want to use any of them and have no expe However, if you prefer to just build Enzyme without Rust, then these instructions might help. ```bash -git clone --depth=1 git@github.com:llvm/llvm-project.git +git clone git@github.com:llvm/llvm-project cd llvm-project mkdir build cd build @@ -77,7 +77,7 @@ ninja install This gives you a working LLVM build, now we can continue with building Enzyme. Leave the `llvm-project` folder, and execute the following commands: ```bash -git clone git@github.com:EnzymeAD/Enzyme.git +git clone git@github.com:EnzymeAD/Enzyme cd Enzyme/enzyme mkdir build cd build diff --git a/src/doc/rustc-dev-guide/src/effects.md b/src/doc/rustc-dev-guide/src/effects.md index c7aa2714668..87b0103a7bc 100644 --- a/src/doc/rustc-dev-guide/src/effects.md +++ b/src/doc/rustc-dev-guide/src/effects.md @@ -67,10 +67,8 @@ in [`wfcheck::check_impl`]. Here's an example: ```rust -#[const_trait] -trait Bar {} -#[const_trait] -trait Foo: ~const Bar {} +const trait Bar {} +const trait Foo: ~const Bar {} // `const_conditions` contains `HostEffect(Self: Bar, maybe)` impl const Bar for () {} @@ -85,8 +83,7 @@ predicates of the trait method, and we attempt to prove the predicates of the impl method. We do the same for `const_conditions`: ```rust -#[const_trait] -trait Foo { +const trait Foo { fn hi<T: ~const Default>(); } diff --git a/src/doc/rustc-dev-guide/src/external-repos.md b/src/doc/rustc-dev-guide/src/external-repos.md index f3170c9222d..ecc65b26ab7 100644 --- a/src/doc/rustc-dev-guide/src/external-repos.md +++ b/src/doc/rustc-dev-guide/src/external-repos.md @@ -9,7 +9,7 @@ There are three main ways we use dependencies: As a general rule: - Use crates.io for libraries that could be useful for others in the ecosystem - Use subtrees for tools that depend on compiler internals and need to be updated if there are breaking -changes + changes - Use submodules for tools that are independent of the compiler ## External Dependencies (subtrees) @@ -23,6 +23,8 @@ The following external projects are managed using some form of a `subtree`: * [rust-analyzer](https://github.com/rust-lang/rust-analyzer) * [rustc_codegen_cranelift](https://github.com/rust-lang/rustc_codegen_cranelift) * [rustc-dev-guide](https://github.com/rust-lang/rustc-dev-guide) +* [compiler-builtins](https://github.com/rust-lang/compiler-builtins) +* [stdarch](https://github.com/rust-lang/stdarch) In contrast to `submodule` dependencies (see below for those), the `subtree` dependencies are just regular files and directories which can @@ -34,20 +36,61 @@ implement a new tool feature or test, that should happen in one collective rustc `subtree` dependencies are currently managed by two distinct approaches: * Using `git subtree` - * `clippy` ([sync guide](https://doc.rust-lang.org/nightly/clippy/development/infrastructure/sync.html#performing-the-sync-from-rust-langrust-to-clippy)) - * `portable-simd` ([sync script](https://github.com/rust-lang/portable-simd/blob/master/subtree-sync.sh)) - * `rustfmt` - * `rustc_codegen_cranelift` ([sync script](https://github.com/rust-lang/rustc_codegen_cranelift/blob/113af154d459e41b3dc2c5d7d878e3d3a8f33c69/scripts/rustup.sh#L7)) + * `clippy` ([sync guide](https://doc.rust-lang.org/nightly/clippy/development/infrastructure/sync.html#performing-the-sync-from-rust-langrust-to-clippy)) + * `portable-simd` ([sync script](https://github.com/rust-lang/portable-simd/blob/master/subtree-sync.sh)) + * `rustfmt` + * `rustc_codegen_cranelift` ([sync script](https://github.com/rust-lang/rustc_codegen_cranelift/blob/113af154d459e41b3dc2c5d7d878e3d3a8f33c69/scripts/rustup.sh#L7)) * Using the [josh] tool - * `miri` ([sync guide](https://github.com/rust-lang/miri/blob/master/CONTRIBUTING.md#advanced-topic-syncing-with-the-rustc-repo)) - * `rust-analyzer` ([sync script](https://github.com/rust-lang/rust-analyzer/blob/2e13684be123eca7181aa48e043e185d8044a84a/xtask/src/release.rs#L147)) - * `rustc-dev-guide` ([sync guide](https://github.com/rust-lang/rustc-dev-guide#synchronizing-josh-subtree-with-rustc)) + * `miri` ([sync guide](https://github.com/rust-lang/miri/blob/master/CONTRIBUTING.md#advanced-topic-syncing-with-the-rustc-repo)) + * `rust-analyzer` ([sync script](https://github.com/rust-lang/rust-analyzer/blob/2e13684be123eca7181aa48e043e185d8044a84a/xtask/src/release.rs#L147)) + * `rustc-dev-guide` ([josh sync](#synchronizing-a-josh-subtree)) + * `compiler-builtins` ([josh sync](#synchronizing-a-josh-subtree)) + * `stdarch` ([josh sync](#synchronizing-a-josh-subtree)) -The [josh] tool is an alternative to git subtrees, which manages git history in a different way and scales better to larger repositories. Specific tooling is required to work with josh, you can check out the `miri` or `rust-analyzer` scripts linked above for inspiration. If you want to migrate a repository dependency from `git subtree` or `git submodule` to josh, you can check out [this guide](https://hackmd.io/7pOuxnkdQDaL1Y1FQr65xg). +### Josh subtrees -Below you can find a guide on how to perform push and pull synchronization with the main rustc repo using `git subtree`, although these instructions might differ repo from repo. +The [josh] tool is an alternative to git subtrees, which manages git history in a different way and scales better to larger repositories. Specific tooling is required to work with josh; you can check out the `miri` or `rust-analyzer` scripts linked above for inspiration. We provide a helper [`rustc-josh-sync`][josh-sync] tool to help with the synchronization, described [below](#synchronizing-a-josh-subtree). -### Synchronizing a subtree +### Synchronizing a Josh subtree + +We use a dedicated tool called [`rustc-josh-sync`][josh-sync] for performing Josh subtree updates. +Currently, we are migrating Josh repositories to it. So far, it is used in: + +- compiler-builtins +- rustc-dev-guide +- stdarch + +To install the tool: +``` +cargo install --locked --git https://github.com/rust-lang/josh-sync +``` + +Both pulls (synchronize changes from rust-lang/rust into the subtree) and pushes (synchronize +changes from the subtree to rust-lang/rust) are performed from the subtree repository (so first +switch to its repository checkout directory in your terminal). + +#### Performing pull +1) Checkout a new branch that will be used to create a PR into the subtree +2) Run the pull command + ``` + rustc-josh-sync pull + ``` +3) Push the branch to your fork and create a PR into the subtree repository + - If you have `gh` CLI installed, `rustc-josh-sync` can create the PR for you. + +#### Performing push + +1) Run the push command to create a branch named `<branch-name>` in a `rustc` fork under the `<gh-username>` account + ``` + rustc-josh-sync push <branch-name> <gh-username> + ``` +2) Create a PR from `<branch-name>` into `rust-lang/rust` + +### Creating a new Josh subtree dependency + +If you want to migrate a repository dependency from `git subtree` or `git submodule` to josh, you can check out [this guide](https://hackmd.io/7pOuxnkdQDaL1Y1FQr65xg). + +### Synchronizing a git subtree Periodically the changes made to subtree based dependencies need to be synchronized between this repository and the upstream tool repositories. @@ -129,3 +172,4 @@ the week leading up to the beta cut. [toolstate website]: https://rust-lang-nursery.github.io/rust-toolstate/ [Toolstate chapter]: https://forge.rust-lang.org/infra/toolstate.html [josh]: https://josh-project.github.io/josh/intro.html +[josh-sync]: https://github.com/rust-lang/josh-sync diff --git a/src/doc/rustc-dev-guide/src/offload/installation.md b/src/doc/rustc-dev-guide/src/offload/installation.md index 2536af09a23..1962314c70a 100644 --- a/src/doc/rustc-dev-guide/src/offload/installation.md +++ b/src/doc/rustc-dev-guide/src/offload/installation.md @@ -6,14 +6,14 @@ In the future, `std::offload` should become available in nightly builds for user First you need to clone and configure the Rust repository: ```bash -git clone --depth=1 git@github.com:rust-lang/rust.git +git clone git@github.com:rust-lang/rust cd rust ./configure --enable-llvm-link-shared --release-channel=nightly --enable-llvm-assertions --enable-offload --enable-enzyme --enable-clang --enable-lld --enable-option-checking --enable-ninja --disable-docs ``` Afterwards you can build rustc using: ```bash -./x.py build --stage 1 library +./x build --stage 1 library ``` Afterwards rustc toolchain link will allow you to use it through cargo: @@ -26,7 +26,7 @@ rustup toolchain install nightly # enables -Z unstable-options ## Build instruction for LLVM itself ```bash -git clone --depth=1 git@github.com:llvm/llvm-project.git +git clone git@github.com:llvm/llvm-project cd llvm-project mkdir build cd build @@ -40,7 +40,7 @@ This gives you a working LLVM build. ## Testing run ``` -./x.py test --stage 1 tests/codegen/gpu_offload +./x test --stage 1 tests/codegen/gpu_offload ``` ## Usage diff --git a/src/doc/rustc-dev-guide/src/solve/invariants.md b/src/doc/rustc-dev-guide/src/solve/invariants.md index fd12b195757..8ec15f339e5 100644 --- a/src/doc/rustc-dev-guide/src/solve/invariants.md +++ b/src/doc/rustc-dev-guide/src/solve/invariants.md @@ -4,17 +4,15 @@ FIXME: This file talks about invariants of the type system as a whole, not only There are a lot of invariants - things the type system guarantees to be true at all times - which are desirable or expected from other languages and type systems. Unfortunately, quite -a few of them do not hold in Rust right now. This is either a fundamental to its design or -caused by bugs and something that may change in the future. +a few of them do not hold in Rust right now. This is either fundamental to its design or +caused by bugs, and something that may change in the future. -It is important to know about the things you can assume while working on - and with - the +It is important to know about the things you can assume while working on, and with, the type system, so here's an incomplete and unofficial list of invariants of the core type system: -- ✅: this invariant mostly holds, with some weird exceptions, you can rely on it outside -of these cases -- ❌: this invariant does not hold, either due to bugs or by design, you must not rely on -it for soundness or have to be incredibly careful when doing so +- ✅: this invariant mostly holds, with some weird exceptions or current bugs +- ❌: this invariant does not hold, and is unlikely to do so in the future; do not rely on it for soundness or have to be incredibly careful when doing so ### `wf(X)` implies `wf(normalize(X))` ✅ @@ -23,20 +21,23 @@ well-formed after normalizing said aliases. We rely on this as otherwise we would have to re-check for well-formedness for these types. +This currently does not hold due to a type system unsoundness: [#84533](https://github.com/rust-lang/rust/issues/84533). + ### Structural equality modulo regions implies semantic equality ✅ If you have a some type and equate it to itself after replacing any regions with unique inference variables in both the lhs and rhs, the now potentially structurally different types should still be equal to each other. -Needed to prevent goals from succeeding in HIR typeck and then failing in MIR borrowck. -If this invariant is broken MIR typeck ends up failing with an ICE. +This is needed to prevent goals from succeeding in HIR typeck and then failing in MIR borrowck. +If this invariant is broken, MIR typeck ends up failing with an ICE. ### Applying inference results from a goal does not change its result ❌ TODO: this invariant is formulated in a weird way and needs to be elaborated. Pretty much: I would like this check to only fail if there's a solver bug: -https://github.com/rust-lang/rust/blob/2ffeb4636b4ae376f716dc4378a7efb37632dc2d/compiler/rustc_trait_selection/src/solve/eval_ctxt.rs#L391-L407 +<https://github.com/rust-lang/rust/blob/2ffeb4636b4ae376f716dc4378a7efb37632dc2d/compiler/rustc_trait_selection/src/solve/eval_ctxt.rs#L391-L407>. +We should readd this check and see where it breaks :3 If we prove some goal/equate types/whatever, apply the resulting inference constraints, and then redo the original action, the result should be the same. @@ -73,82 +74,99 @@ Many of the currently known unsound issues end up relying on this invariant bein It is however very difficult to imagine a sound type system without this invariant, so the issue is that the invariant is broken, not that we incorrectly rely on it. -### Generic goals and their instantiations have the same result ✅ +### The type system is complete ❌ + +The type system is not complete. +It often adds unnecessary inference constraints, and errors even though the goal could hold. + +- method selection +- opaque type inference +- handling type outlives constraints +- preferring `ParamEnv` candidates over `Impl` candidates during candidate selection +in the trait solver + +### Goals keep their result from HIR typeck afterwards ✅ + +Having a goal which succeeds during HIR typeck but fails when being reevaluated during MIR borrowck causes ICE, e.g. [#140211](https://github.com/rust-lang/rust/issues/140211). -Pretty much: If we successfully typecheck a generic function concrete instantiations -of that function should also typeck. We should not get errors post-monomorphization. -We can however get overflow errors at that point. +Having a goal which succeeds during HIR typeck but fails after being instantiated is unsound, e.g. [#140212](https://github.com/rust-lang/rust/issues/140212). -TODO: example for overflow error post-monomorphization +It is interesting that we allow some incompleteness in the trait solver while still maintaining this limitation. It would be nice if there was a clear way to separate the "allowed incompleteness" from behavior which would break this invariant. + +#### Normalization must not change results This invariant is relied on to allow the normalization of generic aliases. Breaking -it can easily result in unsoundness, e.g. [#57893](https://github.com/rust-lang/rust/issues/57893) +it can easily result in unsoundness, e.g. [#57893](https://github.com/rust-lang/rust/issues/57893). + +#### Goals may still overflow after instantiation + +This happens they start to hit the recursion limit. +We also have diverging aliases which are scuffed. +It's unclear how these should be handled :3 ### Trait goals in empty environments are proven by a unique impl ✅ If a trait goal holds with an empty environment, there should be a unique `impl`, either user-defined or builtin, which is used to prove that goal. This is -necessary to select a unique method. +necessary to select unique methods and associated items. -We do however break this invariant in few cases, some of which are due to bugs, -some by design: +We do however break this invariant in a few cases, some of which are due to bugs, some by design: - *marker traits* are allowed to overlap as they do not have associated items - *specialization* allows specializing impls to overlap with their parent - the builtin trait object trait implementation can overlap with a user-defined impl: -[#57893] +[#57893](https://github.com/rust-lang/rust/issues/57893) -### The type system is complete ❌ - -The type system is not complete, it often adds unnecessary inference constraints, and errors -even though the goal could hold. - -- method selection -- opaque type inference -- handling type outlives constraints -- preferring `ParamEnv` candidates over `Impl` candidates during candidate selection -in the trait solver #### The type system is complete during the implicit negative overlap check in coherence ✅ -For more on overlap checking: [coherence] +For more on overlap checking, see [Coherence chapter]. -During the implicit negative overlap check in coherence we must never return *error* for -goals which can be proven. This would allow for overlapping impls with potentially different -associated items, breaking a bunch of other invariants. +During the implicit negative overlap check in coherence, +we must never return *error* for goals which can be proven. +This would allow for overlapping impls with potentially different associated items, +breaking a bunch of other invariants. This invariant is currently broken in many different ways while actually something we rely on. We have to be careful as it is quite easy to break: - generalization of aliases - generalization during subtyping binders (luckily not exploitable in coherence) -### Trait solving must be (free) lifetime agnostic ✅ +### Trait solving must not depend on lifetimes being different ✅ + +If a goal holds with lifetimes being different, it must also hold with these lifetimes being the same. We otherwise get post-monomorphization errors during codegen or unsoundness due to invalid vtables. -Trait solving during codegen should have the same result as during typeck. As we erase -all free regions during codegen we must not rely on them during typeck. A noteworthy example -is special behavior for `'static`. +We could also just get inconsistent behavior when first proving a goal with different lifetimes which are later constrained to be equal. + +### Trait solving in bodies must not depend on lifetimes being equal ✅ We also have to be careful with relying on equality of regions in the trait solver. This is fine for codegen, as we treat all erased regions as equal. We can however lose equality information from HIR to MIR typeck. -The new solver "uniquifies regions" during canonicalization, canonicalizing `u32: Trait<'x, 'x>` -as `exists<'0, '1> u32: Trait<'0, '1>`, to make it harder to rely on this property. +This currently does not hold with the new solver: [trait-system-refactor-initiative#27](https://github.com/rust-lang/trait-system-refactor-initiative/issues/27). ### Removing ambiguity makes strictly more things compile ❌ Ideally we *should* not rely on ambiguity for things to compile. Not doing that will cause future improvements to be breaking changes. -Due to *incompleteness* this is not the case and improving inference can result in inference -changes, breaking existing projects. +Due to *incompleteness* this is not the case, +and improving inference can result in inference changes, breaking existing projects. ### Semantic equality implies structural equality ✅ Two types being equal in the type system must mean that they have the same `TypeId` after instantiating their generic parameters with concrete -arguments. This currently does not hold: [#97156]. +arguments. We can otherwise use their different `TypeId`s to impact trait selection. + +We lookup types using structural equality during codegen, but this shouldn't necessarily be unsound +- may result in redundant method codegen or backend type check errors? +- we also rely on it in CTFE assertions + +### Semantically different types have different `TypeId`s ✅ + +Semantically different `'static` types need different `TypeId`s to avoid transmutes, +for example `for<'a> fn(&'a str)` vs `fn(&'static str)` must have a different `TypeId`. + -[#57893]: https://github.com/rust-lang/rust/issues/57893 -[#97156]: https://github.com/rust-lang/rust/issues/97156 -[#114936]: https://github.com/rust-lang/rust/issues/114936 -[coherence]: ../coherence.md +[coherence chapter]: ../coherence.md diff --git a/src/doc/rustc-dev-guide/src/tests/directives.md b/src/doc/rustc-dev-guide/src/tests/directives.md index 839076b809d..63aa08c389c 100644 --- a/src/doc/rustc-dev-guide/src/tests/directives.md +++ b/src/doc/rustc-dev-guide/src/tests/directives.md @@ -59,7 +59,7 @@ not be exhaustive. Directives can generally be found by browsing the | `aux-crate` | Like `aux-build` but makes available as extern prelude | All except `run-make` | `<extern_prelude_name>=<path/to/aux/file.rs>` | | `aux-codegen-backend` | Similar to `aux-build` but pass the compiled dylib to `-Zcodegen-backend` when building the main file | `ui-fulldeps` | Path to codegen backend file | | `proc-macro` | Similar to `aux-build`, but for aux forces host and don't use `-Cprefer-dynamic`[^pm]. | All except `run-make` | Path to auxiliary proc-macro `.rs` file | -| `build-aux-docs` | Build docs for auxiliaries as well | All except `run-make` | N/A | +| `build-aux-docs` | Build docs for auxiliaries as well. Note that this only works with `aux-build`, not `aux-crate`. | All except `run-make` | N/A | [^pm]: please see the Auxiliary proc-macro section in the [compiletest](./compiletest.md) chapter for specifics. diff --git a/src/doc/rustc-dev-guide/src/tests/intro.md b/src/doc/rustc-dev-guide/src/tests/intro.md index c55d60f4a5c..79b96c450a8 100644 --- a/src/doc/rustc-dev-guide/src/tests/intro.md +++ b/src/doc/rustc-dev-guide/src/tests/intro.md @@ -111,12 +111,14 @@ and it can be invoked so: This requires building all of the documentation, which might take a while. -### Dist check +### `distcheck` `distcheck` verifies that the source distribution tarball created by the build system will unpack, build, and run all tests. -> Example: `./x test distcheck` +```console +./x test distcheck +``` ### Tool tests diff --git a/src/doc/rustc-dev-guide/src/tests/misc.md b/src/doc/rustc-dev-guide/src/tests/misc.md index c0288b3dd10..39f88174879 100644 --- a/src/doc/rustc-dev-guide/src/tests/misc.md +++ b/src/doc/rustc-dev-guide/src/tests/misc.md @@ -9,7 +9,7 @@ for testing: - `RUSTC_BOOTSTRAP=1` will "cheat" and bypass usual stability checking, allowing you to use unstable features and cli flags on a stable `rustc`. -- `RUSTC_BOOTSTRAP=-1` will force a given `rustc` to pretend that is a stable +- `RUSTC_BOOTSTRAP=-1` will force a given `rustc` to pretend it is a stable compiler, even if it's actually a nightly `rustc`. This is useful because some behaviors of the compiler (e.g. diagnostics) can differ depending on whether the compiler is nightly or not. diff --git a/src/doc/rustc/src/platform-support/netbsd.md b/src/doc/rustc/src/platform-support/netbsd.md index e80ff85edad..b173bf82b44 100644 --- a/src/doc/rustc/src/platform-support/netbsd.md +++ b/src/doc/rustc/src/platform-support/netbsd.md @@ -32,10 +32,11 @@ are built for NetBSD 8.x but also work on newer OS versions). ## Target Maintainers [@he32](https://github.com/he32) +[@0323pin](https://github.com/0323pin) Further contacts: -- [NetBSD/pkgsrc-wip's rust](https://github.com/NetBSD/pkgsrc-wip/blob/master/rust185/Makefile) maintainer (see MAINTAINER variable). This package is part of "pkgsrc work-in-progress" and is used for deployment and testing of new versions of rust +- [NetBSD/pkgsrc-wip's rust](https://github.com/NetBSD/pkgsrc-wip/blob/master/rust188/Makefile) maintainer (see MAINTAINER variable). This package is part of "pkgsrc work-in-progress" and is used for deployment and testing of new versions of rust. Note that we have the convention of having multiple rust versions active in pkgsrc-wip at any one time, so the version number is part of the directory name, and from time to time old versions are culled so this is not a fully "stable" link. - [NetBSD's pkgsrc lang/rust](https://github.com/NetBSD/pkgsrc/tree/trunk/lang/rust) for the "proper" package in pkgsrc. - [NetBSD's pkgsrc lang/rust-bin](https://github.com/NetBSD/pkgsrc/tree/trunk/lang/rust-bin) which re-uses the bootstrap kit as a binary distribution and therefore avoids the rather protracted native build time of rust itself diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs index e7a1f4d8397..1265a39d27b 100644 --- a/src/librustdoc/clean/mod.rs +++ b/src/librustdoc/clean/mod.rs @@ -390,7 +390,8 @@ pub(crate) fn clean_predicate<'tcx>( ty::ClauseKind::ConstEvaluatable(..) | ty::ClauseKind::WellFormed(..) | ty::ClauseKind::ConstArgHasType(..) - // FIXME(const_trait_impl): We can probably use this `HostEffect` pred to render `[const]`. + | ty::ClauseKind::UnstableFeature(..) + // FIXME(const_trait_impl): We can probably use this `HostEffect` pred to render `~const`. | ty::ClauseKind::HostEffect(_) => None, } } @@ -2864,7 +2865,7 @@ fn clean_maybe_renamed_item<'tcx>( ItemKind::Fn { ref sig, generics, body: body_id, .. } => { clean_fn_or_proc_macro(item, sig, generics, body_id, &mut name, cx) } - ItemKind::Trait(_, _, _, generics, bounds, item_ids) => { + ItemKind::Trait(_, _, _, _, generics, bounds, item_ids) => { let items = item_ids .iter() .map(|&ti| clean_trait_item(cx.tcx.hir_trait_item(ti), cx)) diff --git a/src/librustdoc/clean/types.rs b/src/librustdoc/clean/types.rs index 3ecd41db2dd..09647492d93 100644 --- a/src/librustdoc/clean/types.rs +++ b/src/librustdoc/clean/types.rs @@ -648,7 +648,7 @@ impl Item { let sig = tcx.fn_sig(def_id).skip_binder(); let constness = if tcx.is_const_fn(def_id) { // rustc's `is_const_fn` returns `true` for associated functions that have an `impl const` parent - // or that have a `#[const_trait]` parent. Do not display those as `const` in rustdoc because we + // or that have a `const trait` parent. Do not display those as `const` in rustdoc because we // won't be printing correct syntax plus the syntax is unstable. match tcx.opt_associated_item(def_id) { Some(ty::AssocItem { @@ -759,79 +759,48 @@ impl Item { Some(tcx.visibility(def_id)) } - fn attributes_without_repr(&self, tcx: TyCtxt<'_>, is_json: bool) -> Vec<String> { - const ALLOWED_ATTRIBUTES: &[Symbol] = - &[sym::export_name, sym::link_section, sym::no_mangle, sym::non_exhaustive]; + /// Get a list of attributes excluding `#[repr]` to display. + /// + /// Only used by the HTML output-format. + fn attributes_without_repr(&self) -> Vec<String> { self.attrs .other_attrs .iter() - .filter_map(|attr| { - if let hir::Attribute::Parsed(AttributeKind::LinkSection { name, .. }) = attr { + .filter_map(|attr| match attr { + hir::Attribute::Parsed(AttributeKind::LinkSection { name, .. }) => { Some(format!("#[link_section = \"{name}\"]")) } - // NoMangle is special cased, as it appears in HTML output, and we want to show it in source form, not HIR printing. - // It is also used by cargo-semver-checks. - else if let hir::Attribute::Parsed(AttributeKind::NoMangle(..)) = attr { + hir::Attribute::Parsed(AttributeKind::NoMangle(..)) => { Some("#[no_mangle]".to_string()) - } else if let hir::Attribute::Parsed(AttributeKind::ExportName { name, .. }) = attr - { + } + hir::Attribute::Parsed(AttributeKind::ExportName { name, .. }) => { Some(format!("#[export_name = \"{name}\"]")) - } else if let hir::Attribute::Parsed(AttributeKind::NonExhaustive(..)) = attr { + } + hir::Attribute::Parsed(AttributeKind::NonExhaustive(..)) => { Some("#[non_exhaustive]".to_string()) - } else if is_json { - match attr { - // rustdoc-json stores this in `Item::deprecation`, so we - // don't want it it `Item::attrs`. - hir::Attribute::Parsed(AttributeKind::Deprecation { .. }) => None, - // We have separate pretty-printing logic for `#[repr(..)]` attributes. - hir::Attribute::Parsed(AttributeKind::Repr { .. }) => None, - // target_feature is special-cased because cargo-semver-checks uses it - hir::Attribute::Parsed(AttributeKind::TargetFeature(features, _)) => { - let mut output = String::new(); - for (i, (feature, _)) in features.iter().enumerate() { - if i != 0 { - output.push_str(", "); - } - output.push_str(&format!("enable=\"{}\"", feature.as_str())); - } - Some(format!("#[target_feature({output})]")) - } - hir::Attribute::Parsed(AttributeKind::AutomaticallyDerived(..)) => { - Some("#[automatically_derived]".to_string()) - } - _ => Some({ - let mut s = rustc_hir_pretty::attribute_to_string(&tcx, attr); - assert_eq!(s.pop(), Some('\n')); - s - }), - } - } else { - if !attr.has_any_name(ALLOWED_ATTRIBUTES) { - return None; - } - Some( - rustc_hir_pretty::attribute_to_string(&tcx, attr) - .replace("\\\n", "") - .replace('\n', "") - .replace(" ", " "), - ) } + _ => None, }) .collect() } - pub(crate) fn attributes(&self, tcx: TyCtxt<'_>, cache: &Cache, is_json: bool) -> Vec<String> { - let mut attrs = self.attributes_without_repr(tcx, is_json); + /// Get a list of attributes to display on this item. + /// + /// Only used by the HTML output-format. + pub(crate) fn attributes(&self, tcx: TyCtxt<'_>, cache: &Cache) -> Vec<String> { + let mut attrs = self.attributes_without_repr(); - if let Some(repr_attr) = self.repr(tcx, cache, is_json) { + if let Some(repr_attr) = self.repr(tcx, cache) { attrs.push(repr_attr); } attrs } /// Returns a stringified `#[repr(...)]` attribute. - pub(crate) fn repr(&self, tcx: TyCtxt<'_>, cache: &Cache, is_json: bool) -> Option<String> { - repr_attributes(tcx, cache, self.def_id()?, self.type_(), is_json) + /// + /// Only used by the HTML output-format. + pub(crate) fn repr(&self, tcx: TyCtxt<'_>, cache: &Cache) -> Option<String> { + repr_attributes(tcx, cache, self.def_id()?, self.type_()) } pub fn is_doc_hidden(&self) -> bool { @@ -843,12 +812,14 @@ impl Item { } } +/// Return a string representing the `#[repr]` attribute if present. +/// +/// Only used by the HTML output-format. pub(crate) fn repr_attributes( tcx: TyCtxt<'_>, cache: &Cache, def_id: DefId, item_type: ItemType, - is_json: bool, ) -> Option<String> { use rustc_abi::IntegerType; @@ -865,7 +836,6 @@ pub(crate) fn repr_attributes( // Render `repr(transparent)` iff the non-1-ZST field is public or at least one // field is public in case all fields are 1-ZST fields. let render_transparent = cache.document_private - || is_json || adt .all_fields() .find(|field| { diff --git a/src/librustdoc/clean/utils.rs b/src/librustdoc/clean/utils.rs index bf3f7607274..fd1b17b6476 100644 --- a/src/librustdoc/clean/utils.rs +++ b/src/librustdoc/clean/utils.rs @@ -3,6 +3,7 @@ use std::fmt::{self, Display, Write as _}; use std::sync::LazyLock as Lazy; use std::{ascii, mem}; +use rustc_ast::join_path_idents; use rustc_ast::tokenstream::TokenTree; use rustc_hir::def::{DefKind, Res}; use rustc_hir::def_id::{DefId, LOCAL_CRATE, LocalDefId}; @@ -24,7 +25,7 @@ use crate::clean::{ clean_middle_ty, inline, }; use crate::core::DocContext; -use crate::display::{Joined as _, MaybeDisplay as _}; +use crate::display::Joined as _; #[cfg(test)] mod tests; @@ -251,13 +252,7 @@ pub(crate) fn qpath_to_string(p: &hir::QPath<'_>) -> String { hir::QPath::LangItem(lang_item, ..) => return lang_item.name().to_string(), }; - fmt::from_fn(|f| { - segments - .iter() - .map(|seg| (seg.ident.name != kw::PathRoot).then_some(seg.ident).maybe_display()) - .joined("::", f) - }) - .to_string() + join_path_idents(segments.iter().map(|seg| seg.ident)) } pub(crate) fn build_deref_target_impls( diff --git a/src/librustdoc/formats/cache.rs b/src/librustdoc/formats/cache.rs index 4989bd718c9..5191120ebdb 100644 --- a/src/librustdoc/formats/cache.rs +++ b/src/librustdoc/formats/cache.rs @@ -1,5 +1,6 @@ use std::mem; +use rustc_ast::join_path_syms; use rustc_attr_data_structures::StabilityLevel; use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexMap, FxIndexSet}; use rustc_hir::def_id::{CrateNum, DefId, DefIdMap, DefIdSet}; @@ -13,7 +14,6 @@ use crate::core::DocContext; use crate::fold::DocFolder; use crate::formats::Impl; use crate::formats::item_type::ItemType; -use crate::html::format::join_with_double_colon; use crate::html::markdown::short_markdown_summary; use crate::html::render::IndexItem; use crate::html::render::search_index::get_function_type_for_search; @@ -558,7 +558,7 @@ fn add_item_to_search_index(tcx: TyCtxt<'_>, cache: &mut Cache, item: &clean::It clean::ItemKind::ImportItem(import) => import.source.did.unwrap_or(item_def_id), _ => item_def_id, }; - let path = join_with_double_colon(parent_path); + let path = join_path_syms(parent_path); let impl_id = if let Some(ParentStackItem::Impl { item_id, .. }) = cache.parent_stack.last() { item_id.as_def_id() } else { diff --git a/src/librustdoc/html/format.rs b/src/librustdoc/html/format.rs index bcb3e57c844..b16485107a0 100644 --- a/src/librustdoc/html/format.rs +++ b/src/librustdoc/html/format.rs @@ -14,6 +14,7 @@ use std::slice; use itertools::{Either, Itertools}; use rustc_abi::ExternAbi; +use rustc_ast::join_path_syms; use rustc_attr_data_structures::{ConstStability, StabilityLevel, StableSince}; use rustc_data_structures::fx::FxHashSet; use rustc_hir as hir; @@ -25,7 +26,7 @@ use rustc_span::symbol::kw; use rustc_span::{Symbol, sym}; use tracing::{debug, trace}; -use super::url_parts_builder::{UrlPartsBuilder, estimate_item_path_byte_length}; +use super::url_parts_builder::UrlPartsBuilder; use crate::clean::types::ExternalLocation; use crate::clean::utils::find_nearest_parent_module; use crate::clean::{self, ExternalCrate, PrimitiveType}; @@ -369,18 +370,6 @@ pub(crate) enum HrefError { NotInExternalCache, } -// Panics if `syms` is empty. -pub(crate) fn join_with_double_colon(syms: &[Symbol]) -> String { - let mut s = String::with_capacity(estimate_item_path_byte_length(syms.len())); - // NOTE: using `Joined::joined` here causes a noticeable perf regression - s.push_str(syms[0].as_str()); - for sym in &syms[1..] { - s.push_str("::"); - s.push_str(sym.as_str()); - } - s -} - /// This function is to get the external macro path because they are not in the cache used in /// `href_with_root_path`. fn generate_macro_def_id_path( @@ -672,7 +661,7 @@ pub(crate) fn link_tooltip( write!(f, "{}", cx.tcx().item_name(id))?; } else if !fqp.is_empty() { write!(f, "{shortty} ")?; - fqp.iter().joined("::", f)?; + write!(f, "{}", join_path_syms(fqp))?; } Ok(()) }) @@ -703,7 +692,7 @@ fn resolved_path( write!( f, "{path}::{anchor}", - path = join_with_double_colon(&fqp[..fqp.len() - 1]), + path = join_path_syms(&fqp[..fqp.len() - 1]), anchor = print_anchor(did, *fqp.last().unwrap(), cx) ) } else { @@ -835,7 +824,7 @@ pub(crate) fn print_anchor(did: DefId, text: Symbol, cx: &Context<'_>) -> impl D write!( f, r#"<a class="{short_ty}" href="{url}" title="{short_ty} {path}">{text}</a>"#, - path = join_with_double_colon(&fqp), + path = join_path_syms(fqp), text = EscapeBodyText(text.as_str()), ) } else { @@ -1095,7 +1084,7 @@ impl clean::QPathData { title=\"type {path}::{name}\">{name}</a>", shortty = ItemType::AssocType, name = assoc.name, - path = join_with_double_colon(&path), + path = join_path_syms(path), ) } else { write!(f, "{}", assoc.name) diff --git a/src/librustdoc/html/render/context.rs b/src/librustdoc/html/render/context.rs index 3b4dae841ee..7b814701a73 100644 --- a/src/librustdoc/html/render/context.rs +++ b/src/librustdoc/html/render/context.rs @@ -6,6 +6,7 @@ use std::path::{Path, PathBuf}; use std::sync::mpsc::{Receiver, channel}; use askama::Template; +use rustc_ast::join_path_syms; use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexMap, FxIndexSet}; use rustc_hir::def_id::{DefIdMap, LOCAL_CRATE}; use rustc_middle::ty::TyCtxt; @@ -27,7 +28,6 @@ use crate::formats::FormatRenderer; use crate::formats::cache::Cache; use crate::formats::item_type::ItemType; use crate::html::escape::Escape; -use crate::html::format::join_with_double_colon; use crate::html::markdown::{self, ErrorCodes, IdMap, plain_text_summary}; use crate::html::render::write_shared::write_shared; use crate::html::url_parts_builder::UrlPartsBuilder; @@ -211,7 +211,7 @@ impl<'tcx> Context<'tcx> { title.push_str(" in "); } // No need to include the namespace for primitive types and keywords - title.push_str(&join_with_double_colon(&self.current)); + title.push_str(&join_path_syms(&self.current)); }; title.push_str(" - Rust"); let tyname = it.type_(); diff --git a/src/librustdoc/html/render/mod.rs b/src/librustdoc/html/render/mod.rs index 70f3f54e4c0..d8c37137bbc 100644 --- a/src/librustdoc/html/render/mod.rs +++ b/src/librustdoc/html/render/mod.rs @@ -49,6 +49,7 @@ use std::{fs, str}; use askama::Template; use itertools::Either; +use rustc_ast::join_path_syms; use rustc_attr_data_structures::{ ConstStability, DeprecatedSince, Deprecation, RustcVersion, StabilityLevel, StableSince, }; @@ -74,9 +75,9 @@ use crate::formats::cache::Cache; use crate::formats::item_type::ItemType; use crate::html::escape::Escape; use crate::html::format::{ - Ending, HrefError, PrintWithSpace, href, join_with_double_colon, print_abi_with_space, - print_constness_with_space, print_default_space, print_generic_bounds, print_where_clause, - visibility_print_with_space, write_str, + Ending, HrefError, PrintWithSpace, href, print_abi_with_space, print_constness_with_space, + print_default_space, print_generic_bounds, print_where_clause, visibility_print_with_space, + write_str, }; use crate::html::markdown::{ HeadingOffset, IdMap, Markdown, MarkdownItemInfo, MarkdownSummaryLine, @@ -1191,7 +1192,7 @@ fn render_assoc_item( // a whitespace prefix and newline. fn render_attributes_in_pre(it: &clean::Item, prefix: &str, cx: &Context<'_>) -> impl fmt::Display { fmt::from_fn(move |f| { - for a in it.attributes(cx.tcx(), cx.cache(), false) { + for a in it.attributes(cx.tcx(), cx.cache()) { writeln!(f, "{prefix}{a}")?; } Ok(()) @@ -1207,7 +1208,7 @@ fn render_code_attribute(code_attr: CodeAttribute, w: &mut impl fmt::Write) { // When an attribute is rendered inside a <code> tag, it is formatted using // a div to produce a newline after it. fn render_attributes_in_code(w: &mut impl fmt::Write, it: &clean::Item, cx: &Context<'_>) { - for attr in it.attributes(cx.tcx(), cx.cache(), false) { + for attr in it.attributes(cx.tcx(), cx.cache()) { render_code_attribute(CodeAttribute(attr), w); } } @@ -1219,7 +1220,7 @@ fn render_repr_attributes_in_code( def_id: DefId, item_type: ItemType, ) { - if let Some(repr) = clean::repr_attributes(cx.tcx(), cx.cache(), def_id, item_type, false) { + if let Some(repr) = clean::repr_attributes(cx.tcx(), cx.cache(), def_id, item_type) { render_code_attribute(CodeAttribute(repr), w); } } @@ -2555,7 +2556,7 @@ fn collect_paths_for_type(first_ty: &clean::Type, cache: &Cache) -> Vec<String> let fqp = cache.exact_paths.get(&did).or_else(get_extern); if let Some(path) = fqp { - out.push(join_with_double_colon(path)); + out.push(join_path_syms(path)); } }; diff --git a/src/librustdoc/html/render/print_item.rs b/src/librustdoc/html/render/print_item.rs index e33bdc0db32..5fbda4797cc 100644 --- a/src/librustdoc/html/render/print_item.rs +++ b/src/librustdoc/html/render/print_item.rs @@ -4,6 +4,7 @@ use std::iter; use askama::Template; use rustc_abi::VariantIdx; +use rustc_ast::join_path_syms; use rustc_data_structures::fx::{FxHashMap, FxIndexSet}; use rustc_hir as hir; use rustc_hir::def::CtorKind; @@ -30,8 +31,8 @@ use crate::formats::Impl; use crate::formats::item_type::ItemType; use crate::html::escape::{Escape, EscapeBodyTextWithWbr}; use crate::html::format::{ - Ending, PrintWithSpace, join_with_double_colon, print_abi_with_space, - print_constness_with_space, print_where_clause, visibility_print_with_space, + Ending, PrintWithSpace, print_abi_with_space, print_constness_with_space, print_where_clause, + visibility_print_with_space, }; use crate::html::markdown::{HeadingOffset, MarkdownSummaryLine}; use crate::html::render::{document_full, document_item_info}; @@ -1424,7 +1425,7 @@ fn item_type_alias(cx: &Context<'_>, it: &clean::Item, t: &clean::TypeAlias) -> iter::repeat_n("..", cx.current.len()).chain(iter::once("type.impl")).collect(); js_src_path.extend(target_fqp[..target_fqp.len() - 1].iter().copied()); js_src_path.push_fmt(format_args!("{target_type}.{}.js", target_fqp.last().unwrap())); - let self_path = fmt::from_fn(|f| self_fqp.iter().joined("::", f)); + let self_path = join_path_syms(self_fqp); write!( w, "<script src=\"{src}\" data-self-path=\"{self_path}\" async></script>", @@ -1487,12 +1488,11 @@ impl<'a, 'cx: 'a> ItemUnion<'a, 'cx> { self.cx.cache(), self.def_id, ItemType::Union, - false, ) { writeln!(f, "{repr}")?; }; } else { - for a in self.it.attributes(self.cx.tcx(), self.cx.cache(), false) { + for a in self.it.attributes(self.cx.tcx(), self.cx.cache()) { writeln!(f, "{a}")?; } } @@ -2257,7 +2257,7 @@ pub(crate) fn compare_names(left: &str, right: &str) -> Ordering { } pub(super) fn full_path(cx: &Context<'_>, item: &clean::Item) -> String { - let mut s = join_with_double_colon(&cx.current); + let mut s = join_path_syms(&cx.current); s.push_str("::"); s.push_str(item.name.unwrap().as_str()); s diff --git a/src/librustdoc/html/render/search_index.rs b/src/librustdoc/html/render/search_index.rs index aff8684ee3a..80a59fa218c 100644 --- a/src/librustdoc/html/render/search_index.rs +++ b/src/librustdoc/html/render/search_index.rs @@ -4,6 +4,7 @@ use std::collections::hash_map::Entry; use std::collections::{BTreeMap, VecDeque}; use encode::{bitmap_to_string, write_vlqhex_to_string}; +use rustc_ast::join_path_syms; use rustc_data_structures::fx::{FxHashMap, FxIndexMap}; use rustc_middle::ty::TyCtxt; use rustc_span::def_id::DefId; @@ -17,7 +18,6 @@ use crate::clean::types::{Function, Generics, ItemId, Type, WherePredicate}; use crate::clean::{self, utils}; use crate::formats::cache::{Cache, OrphanImplItem}; use crate::formats::item_type::ItemType; -use crate::html::format::join_with_double_colon; use crate::html::markdown::short_markdown_summary; use crate::html::render::ordered_json::OrderedJson; use crate::html::render::{self, IndexItem, IndexItemFunctionType, RenderType, RenderTypeId}; @@ -78,7 +78,7 @@ pub(crate) fn build_index( ty: item.type_(), defid: item.item_id.as_def_id(), name: item.name.unwrap(), - path: join_with_double_colon(&fqp[..fqp.len() - 1]), + path: join_path_syms(&fqp[..fqp.len() - 1]), desc, parent: Some(parent), parent_idx: None, @@ -416,7 +416,7 @@ pub(crate) fn build_index( if fqp.len() < 2 { return None; } - join_with_double_colon(&fqp[..fqp.len() - 1]) + join_path_syms(&fqp[..fqp.len() - 1]) }; if path == item.path { return None; @@ -427,10 +427,10 @@ pub(crate) fn build_index( let i = <isize as TryInto<usize>>::try_into(parent_idx).unwrap(); item.path = { let p = &crate_paths[i].1; - join_with_double_colon(&p[..p.len() - 1]) + join_path_syms(&p[..p.len() - 1]) }; item.exact_path = - crate_paths[i].2.as_ref().map(|xp| join_with_double_colon(&xp[..xp.len() - 1])); + crate_paths[i].2.as_ref().map(|xp| join_path_syms(&xp[..xp.len() - 1])); } // Omit the parent path if it is same to that of the prior item. @@ -549,11 +549,11 @@ pub(crate) fn build_index( }); continue; } - let full_path = join_with_double_colon(&path[..path.len() - 1]); + let full_path = join_path_syms(&path[..path.len() - 1]); let full_exact_path = exact .as_ref() .filter(|exact| exact.last() == path.last() && exact.len() >= 2) - .map(|exact| join_with_double_colon(&exact[..exact.len() - 1])); + .map(|exact| join_path_syms(&exact[..exact.len() - 1])); let exact_path = extra_paths.len() + self.items.len(); let exact_path = full_exact_path.as_ref().map(|full_exact_path| match extra_paths .entry(full_exact_path.clone()) diff --git a/src/librustdoc/html/render/write_shared.rs b/src/librustdoc/html/render/write_shared.rs index 0078671fcc5..1f691392b17 100644 --- a/src/librustdoc/html/render/write_shared.rs +++ b/src/librustdoc/html/render/write_shared.rs @@ -26,6 +26,7 @@ use std::{fmt, fs}; use indexmap::IndexMap; use regex::Regex; +use rustc_ast::join_path_syms; use rustc_data_structures::flock; use rustc_data_structures::fx::{FxHashSet, FxIndexMap, FxIndexSet}; use rustc_middle::ty::TyCtxt; @@ -43,7 +44,6 @@ use crate::docfs::PathError; use crate::error::Error; use crate::formats::Impl; use crate::formats::item_type::ItemType; -use crate::html::format::join_with_double_colon; use crate::html::layout; use crate::html::render::ordered_json::{EscapedJson, OrderedJson}; use crate::html::render::search_index::{SerializedSearchIndex, build_index}; @@ -608,7 +608,7 @@ impl TypeAliasPart { for &(type_alias_fqp, type_alias_item) in type_aliases { cx.id_map.borrow_mut().clear(); cx.deref_id_map.borrow_mut().clear(); - let type_alias_fqp = join_with_double_colon(&type_alias_fqp); + let type_alias_fqp = join_path_syms(type_alias_fqp); if let Some(ret) = &mut ret { ret.aliases.push(type_alias_fqp); } else { diff --git a/src/librustdoc/html/url_parts_builder.rs b/src/librustdoc/html/url_parts_builder.rs index 9a533827441..705fa498e8d 100644 --- a/src/librustdoc/html/url_parts_builder.rs +++ b/src/librustdoc/html/url_parts_builder.rs @@ -117,7 +117,7 @@ impl UrlPartsBuilder { /// This is just a guess at the average length of a URL part, /// used for [`String::with_capacity`] calls in the [`FromIterator`] -/// and [`Extend`] impls, and for [estimating item path lengths]. +/// and [`Extend`] impls. /// /// The value `8` was chosen for two main reasons: /// @@ -125,18 +125,8 @@ impl UrlPartsBuilder { /// * jemalloc's size classes are all multiples of eight, /// which means that the amount of memory it allocates will often match /// the amount requested, avoiding wasted bytes. -/// -/// [estimating item path lengths]: estimate_item_path_byte_length const AVG_PART_LENGTH: usize = 8; -/// Estimate the number of bytes in an item's path, based on how many segments it has. -/// -/// **Note:** This is only to be used with, e.g., [`String::with_capacity()`]; -/// the return value is just a rough estimate. -pub(crate) const fn estimate_item_path_byte_length(segment_count: usize) -> usize { - AVG_PART_LENGTH * segment_count -} - impl<'a> FromIterator<&'a str> for UrlPartsBuilder { fn from_iter<T: IntoIterator<Item = &'a str>>(iter: T) -> Self { let iter = iter.into_iter(); diff --git a/src/librustdoc/json/conversions.rs b/src/librustdoc/json/conversions.rs index e7163bead92..0a84d8caa30 100644 --- a/src/librustdoc/json/conversions.rs +++ b/src/librustdoc/json/conversions.rs @@ -5,10 +5,12 @@ use rustc_abi::ExternAbi; use rustc_ast::ast; use rustc_attr_data_structures::{self as attrs, DeprecatedSince}; +use rustc_hir as hir; use rustc_hir::def::CtorKind; use rustc_hir::def_id::DefId; use rustc_hir::{HeaderSafety, Safety}; use rustc_metadata::rendered_const; +use rustc_middle::ty::TyCtxt; use rustc_middle::{bug, ty}; use rustc_span::{Pos, kw, sym}; use rustdoc_json_types::*; @@ -39,7 +41,12 @@ impl JsonRenderer<'_> { }) .collect(); let docs = item.opt_doc_value(); - let attrs = item.attributes(self.tcx, &self.cache, true); + let attrs = item + .attrs + .other_attrs + .iter() + .filter_map(|a| maybe_from_hir_attr(a, item.item_id, self.tcx)) + .collect(); let span = item.span(self.tcx); let visibility = item.visibility(self.tcx); let clean::ItemInner { name, item_id, .. } = *item.inner; @@ -886,3 +893,93 @@ impl FromClean<ItemType> for ItemKind { } } } + +/// Maybe convert a attribute from hir to json. +/// +/// Returns `None` if the attribute shouldn't be in the output. +fn maybe_from_hir_attr( + attr: &hir::Attribute, + item_id: ItemId, + tcx: TyCtxt<'_>, +) -> Option<Attribute> { + use attrs::AttributeKind as AK; + + let kind = match attr { + hir::Attribute::Parsed(kind) => kind, + + hir::Attribute::Unparsed(_) => { + // FIXME: We should handle `#[doc(hidden)]`. + return Some(other_attr(tcx, attr)); + } + }; + + Some(match kind { + AK::Deprecation { .. } => return None, // Handled separately into Item::deprecation. + AK::DocComment { .. } => unreachable!("doc comments stripped out earlier"), + + AK::MustUse { reason, span: _ } => { + Attribute::MustUse { reason: reason.map(|s| s.to_string()) } + } + AK::Repr { .. } => repr_attr( + tcx, + item_id.as_def_id().expect("all items that could have #[repr] have a DefId"), + ), + AK::ExportName { name, span: _ } => Attribute::ExportName(name.to_string()), + AK::LinkSection { name, span: _ } => Attribute::LinkSection(name.to_string()), + AK::TargetFeature(features, _span) => Attribute::TargetFeature { + enable: features.iter().map(|(feat, _span)| feat.to_string()).collect(), + }, + + AK::NoMangle(_) => Attribute::NoMangle, + AK::NonExhaustive(_) => Attribute::NonExhaustive, + AK::AutomaticallyDerived(_) => Attribute::AutomaticallyDerived, + + _ => other_attr(tcx, attr), + }) +} + +fn other_attr(tcx: TyCtxt<'_>, attr: &hir::Attribute) -> Attribute { + let mut s = rustc_hir_pretty::attribute_to_string(&tcx, attr); + assert_eq!(s.pop(), Some('\n')); + Attribute::Other(s) +} + +fn repr_attr(tcx: TyCtxt<'_>, def_id: DefId) -> Attribute { + let repr = tcx.adt_def(def_id).repr(); + + let kind = if repr.c() { + ReprKind::C + } else if repr.transparent() { + ReprKind::Transparent + } else if repr.simd() { + ReprKind::Simd + } else { + ReprKind::Rust + }; + + let align = repr.align.map(|a| a.bytes()); + let packed = repr.pack.map(|p| p.bytes()); + let int = repr.int.map(format_integer_type); + + Attribute::Repr(AttributeRepr { kind, align, packed, int }) +} + +fn format_integer_type(it: rustc_abi::IntegerType) -> String { + use rustc_abi::Integer::*; + use rustc_abi::IntegerType::*; + match it { + Pointer(true) => "isize", + Pointer(false) => "usize", + Fixed(I8, true) => "i8", + Fixed(I8, false) => "u8", + Fixed(I16, true) => "i16", + Fixed(I16, false) => "u16", + Fixed(I32, true) => "i32", + Fixed(I32, false) => "u32", + Fixed(I64, true) => "i64", + Fixed(I64, false) => "u64", + Fixed(I128, true) => "i128", + Fixed(I128, false) => "u128", + } + .to_owned() +} diff --git a/src/rustdoc-json-types/lib.rs b/src/rustdoc-json-types/lib.rs index 0e72ddd9db1..6235b0e8576 100644 --- a/src/rustdoc-json-types/lib.rs +++ b/src/rustdoc-json-types/lib.rs @@ -37,8 +37,8 @@ pub type FxHashMap<K, V> = HashMap<K, V>; // re-export for use in src/librustdoc // will instead cause conflicts. See #94591 for more. (This paragraph and the "Latest feature" line // are deliberately not in a doc comment, because they need not be in public docs.) // -// Latest feature: Pretty printing of no_mangle attributes changed -pub const FORMAT_VERSION: u32 = 53; +// Latest feature: Structured Attributes +pub const FORMAT_VERSION: u32 = 54; /// The root of the emitted JSON blob. /// @@ -195,13 +195,94 @@ pub struct Item { /// - `#[repr(C)]` and other reprs also appear as themselves, /// though potentially with a different order: e.g. `repr(i8, C)` may become `repr(C, i8)`. /// Multiple repr attributes on the same item may be combined into an equivalent single attr. - pub attrs: Vec<String>, + pub attrs: Vec<Attribute>, /// Information about the item’s deprecation, if present. pub deprecation: Option<Deprecation>, /// The type-specific fields describing this item. pub inner: ItemEnum, } +#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)] +#[serde(rename_all = "snake_case")] +/// An attribute, e.g. `#[repr(C)]` +/// +/// This doesn't include: +/// - `#[doc = "Doc Comment"]` or `/// Doc comment`. These are in [`Item::docs`] instead. +/// - `#[deprecated]`. These are in [`Item::deprecation`] instead. +pub enum Attribute { + /// `#[non_exhaustive]` + NonExhaustive, + + /// `#[must_use]` + MustUse { reason: Option<String> }, + + /// `#[export_name = "name"]` + ExportName(String), + + /// `#[link_section = "name"]` + LinkSection(String), + + /// `#[automatically_derived]` + AutomaticallyDerived, + + /// `#[repr]` + Repr(AttributeRepr), + + /// `#[no_mangle]` + NoMangle, + + /// #[target_feature(enable = "feature1", enable = "feature2")] + TargetFeature { enable: Vec<String> }, + + /// Something else. + /// + /// Things here are explicitly *not* covered by the [`FORMAT_VERSION`] + /// constant, and may change without bumping the format version. + /// + /// As an implementation detail, this is currently either: + /// 1. A HIR debug printing, like `"#[attr = Optimize(Speed)]"` + /// 2. The attribute as it appears in source form, like + /// `"#[optimize(speed)]"`. + Other(String), +} + +#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)] +/// The contents of a `#[repr(...)]` attribute. +/// +/// Used in [`Attribute::Repr`]. +pub struct AttributeRepr { + /// The representation, e.g. `#[repr(C)]`, `#[repr(transparent)]` + pub kind: ReprKind, + + /// Alignment in bytes, if explicitly specified by `#[repr(align(...)]`. + pub align: Option<u64>, + /// Alignment in bytes, if explicitly specified by `#[repr(packed(...)]]`. + pub packed: Option<u64>, + + /// The integer type for an enum descriminant, if explicitly specified. + /// + /// e.g. `"i32"`, for `#[repr(C, i32)]` + pub int: Option<String>, +} + +#[derive(Clone, Debug, PartialEq, Eq, Serialize, Deserialize)] +#[serde(rename_all = "snake_case")] +/// The kind of `#[repr]`. +/// +/// See [AttributeRepr::kind]`. +pub enum ReprKind { + /// `#[repr(Rust)]` + /// + /// Also the default. + Rust, + /// `#[repr(C)]` + C, + /// `#[repr(transparent)] + Transparent, + /// `#[repr(simd)]` + Simd, +} + /// A range of source code. #[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)] pub struct Span { @@ -1343,7 +1424,7 @@ pub struct Static { /// Is the static `unsafe`? /// - /// This is only true if it's in an `extern` block, and not explicity marked + /// This is only true if it's in an `extern` block, and not explicitly marked /// as `safe`. /// /// ```rust diff --git a/src/tools/cargo b/src/tools/cargo -Subproject eabb4cd923deb73e714f7ad3f5234d68ca284db +Subproject 6833aa715d724437dc1247d0166afe314ab6854 diff --git a/src/tools/clippy/clippy_lints/src/arbitrary_source_item_ordering.rs b/src/tools/clippy/clippy_lints/src/arbitrary_source_item_ordering.rs index 07df893ae3c..a9d3015ce5c 100644 --- a/src/tools/clippy/clippy_lints/src/arbitrary_source_item_ordering.rs +++ b/src/tools/clippy/clippy_lints/src/arbitrary_source_item_ordering.rs @@ -306,7 +306,7 @@ impl<'tcx> LateLintPass<'tcx> for ArbitrarySourceItemOrdering { cur_f = Some(field); } }, - ItemKind::Trait(is_auto, _safety, _ident, _generics, _generic_bounds, item_ref) + ItemKind::Trait(_constness, is_auto, _safety, _ident, _generics, _generic_bounds, item_ref) if self.enable_ordering_for_trait && *is_auto == IsAuto::No => { let mut cur_t: Option<(TraitItemId, Ident)> = None; diff --git a/src/tools/clippy/clippy_lints/src/doc/mod.rs b/src/tools/clippy/clippy_lints/src/doc/mod.rs index 2bf52216b83..22b781b8929 100644 --- a/src/tools/clippy/clippy_lints/src/doc/mod.rs +++ b/src/tools/clippy/clippy_lints/src/doc/mod.rs @@ -740,7 +740,7 @@ impl<'tcx> LateLintPass<'tcx> for Documentation { ); } }, - ItemKind::Trait(_, unsafety, ..) => match (headers.safety, unsafety) { + ItemKind::Trait(_, _, unsafety, ..) => match (headers.safety, unsafety) { (false, Safety::Unsafe) => span_lint( cx, MISSING_SAFETY_DOC, diff --git a/src/tools/clippy/clippy_lints/src/len_zero.rs b/src/tools/clippy/clippy_lints/src/len_zero.rs index d32017a8b41..1bf03480c82 100644 --- a/src/tools/clippy/clippy_lints/src/len_zero.rs +++ b/src/tools/clippy/clippy_lints/src/len_zero.rs @@ -125,7 +125,7 @@ declare_lint_pass!(LenZero => [LEN_ZERO, LEN_WITHOUT_IS_EMPTY, COMPARISON_TO_EMP impl<'tcx> LateLintPass<'tcx> for LenZero { fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx Item<'_>) { - if let ItemKind::Trait(_, _, ident, _, _, trait_items) = item.kind + if let ItemKind::Trait(_, _, _, ident, _, _, trait_items) = item.kind && !item.span.from_expansion() { check_trait_items(cx, item, ident, trait_items); diff --git a/src/tools/clippy/clippy_lints/src/methods/from_iter_instead_of_collect.rs b/src/tools/clippy/clippy_lints/src/methods/from_iter_instead_of_collect.rs index 045363058d1..d664eaaac70 100644 --- a/src/tools/clippy/clippy_lints/src/methods/from_iter_instead_of_collect.rs +++ b/src/tools/clippy/clippy_lints/src/methods/from_iter_instead_of_collect.rs @@ -4,6 +4,7 @@ use clippy_utils::diagnostics::span_lint_and_sugg; use clippy_utils::source::snippet_with_applicability; use clippy_utils::ty::implements_trait; use clippy_utils::{is_path_diagnostic_item, sugg}; +use rustc_ast::join_path_idents; use rustc_errors::Applicability; use rustc_hir::def::Res; use rustc_hir::{self as hir, Expr, ExprKind, GenericArg, QPath, TyKind}; @@ -47,7 +48,7 @@ fn build_full_type(cx: &LateContext<'_>, hir_ty: &hir::Ty<'_>, app: &mut Applica && let QPath::Resolved(None, ty_path) = &ty_qpath && let Res::Def(_, ty_did) = ty_path.res { - let mut ty_str = itertools::join(ty_path.segments.iter().map(|s| s.ident), "::"); + let mut ty_str = join_path_idents(ty_path.segments.iter().map(|seg| seg.ident)); let mut first = true; let mut append = |arg: &str| { write!(&mut ty_str, "{}{arg}", [", ", "<"][usize::from(first)]).unwrap(); diff --git a/src/tools/clippy/clippy_lints/src/missing_inline.rs b/src/tools/clippy/clippy_lints/src/missing_inline.rs index 329f7193437..c4a3d10299b 100644 --- a/src/tools/clippy/clippy_lints/src/missing_inline.rs +++ b/src/tools/clippy/clippy_lints/src/missing_inline.rs @@ -101,7 +101,7 @@ impl<'tcx> LateLintPass<'tcx> for MissingInline { let attrs = cx.tcx.hir_attrs(it.hir_id()); check_missing_inline_attrs(cx, attrs, it.span, desc); }, - hir::ItemKind::Trait(ref _is_auto, ref _unsafe, _ident, _generics, _bounds, trait_items) => { + hir::ItemKind::Trait(ref _constness, ref _is_auto, ref _unsafe, _ident, _generics, _bounds, trait_items) => { // note: we need to check if the trait is exported so we can't use // `LateLintPass::check_trait_item` here. for &tit in trait_items { diff --git a/src/tools/clippy/clippy_lints/src/trait_bounds.rs b/src/tools/clippy/clippy_lints/src/trait_bounds.rs index 45e54302e32..9182a55081f 100644 --- a/src/tools/clippy/clippy_lints/src/trait_bounds.rs +++ b/src/tools/clippy/clippy_lints/src/trait_bounds.rs @@ -112,7 +112,7 @@ impl<'tcx> LateLintPass<'tcx> for TraitBounds { // special handling for self trait bounds as these are not considered generics // ie. trait Foo: Display {} if let Item { - kind: ItemKind::Trait(_, _, _, _, bounds, ..), + kind: ItemKind::Trait(_, _, _, _, _, bounds, ..), .. } = item { @@ -133,7 +133,7 @@ impl<'tcx> LateLintPass<'tcx> for TraitBounds { .. }) = segments.first() && let Some(Node::Item(Item { - kind: ItemKind::Trait(_, _, _, _, self_bounds, _), + kind: ItemKind::Trait(_, _, _, _, _, self_bounds, _), .. })) = cx.tcx.hir_get_if_local(*def_id) { diff --git a/src/tools/clippy/clippy_lints/src/upper_case_acronyms.rs b/src/tools/clippy/clippy_lints/src/upper_case_acronyms.rs index 02281b9e922..944cd91a7fd 100644 --- a/src/tools/clippy/clippy_lints/src/upper_case_acronyms.rs +++ b/src/tools/clippy/clippy_lints/src/upper_case_acronyms.rs @@ -131,7 +131,7 @@ impl LateLintPass<'_> for UpperCaseAcronyms { return; } match it.kind { - ItemKind::TyAlias(ident, ..) | ItemKind::Struct(ident, ..) | ItemKind::Trait(_, _, ident, ..) => { + ItemKind::TyAlias(ident, ..) | ItemKind::Struct(ident, ..) | ItemKind::Trait(_, _, _, ident, ..) => { check_ident(cx, &ident, it.hir_id(), self.upper_case_acronyms_aggressive); }, ItemKind::Enum(ident, _, ref enumdef) => { diff --git a/src/tools/clippy/clippy_utils/src/ast_utils/mod.rs b/src/tools/clippy/clippy_utils/src/ast_utils/mod.rs index 42254ec8e92..96f0273c439 100644 --- a/src/tools/clippy/clippy_utils/src/ast_utils/mod.rs +++ b/src/tools/clippy/clippy_utils/src/ast_utils/mod.rs @@ -444,6 +444,7 @@ pub fn eq_item_kind(l: &ItemKind, r: &ItemKind) -> bool { }, ( Trait(box ast::Trait { + constness: lc, is_auto: la, safety: lu, ident: li, @@ -452,6 +453,7 @@ pub fn eq_item_kind(l: &ItemKind, r: &ItemKind) -> bool { items: lis, }), Trait(box ast::Trait { + constness: rc, is_auto: ra, safety: ru, ident: ri, @@ -460,7 +462,8 @@ pub fn eq_item_kind(l: &ItemKind, r: &ItemKind) -> bool { items: ris, }), ) => { - la == ra + matches!(lc, ast::Const::No) == matches!(rc, ast::Const::No) + && la == ra && matches!(lu, Safety::Default) == matches!(ru, Safety::Default) && eq_id(*li, *ri) && eq_generics(lg, rg) diff --git a/src/tools/clippy/clippy_utils/src/check_proc_macro.rs b/src/tools/clippy/clippy_utils/src/check_proc_macro.rs index ce61fffe0de..dc31ed08fb7 100644 --- a/src/tools/clippy/clippy_utils/src/check_proc_macro.rs +++ b/src/tools/clippy/clippy_utils/src/check_proc_macro.rs @@ -252,11 +252,11 @@ fn item_search_pat(item: &Item<'_>) -> (Pat, Pat) { ItemKind::Struct(_, _, VariantData::Struct { .. }) => (Pat::Str("struct"), Pat::Str("}")), ItemKind::Struct(..) => (Pat::Str("struct"), Pat::Str(";")), ItemKind::Union(..) => (Pat::Str("union"), Pat::Str("}")), - ItemKind::Trait(_, Safety::Unsafe, ..) + ItemKind::Trait(_, _, Safety::Unsafe, ..) | ItemKind::Impl(Impl { safety: Safety::Unsafe, .. }) => (Pat::Str("unsafe"), Pat::Str("}")), - ItemKind::Trait(IsAuto::Yes, ..) => (Pat::Str("auto"), Pat::Str("}")), + ItemKind::Trait(_, IsAuto::Yes, ..) => (Pat::Str("auto"), Pat::Str("}")), ItemKind::Trait(..) => (Pat::Str("trait"), Pat::Str("}")), ItemKind::Impl(_) => (Pat::Str("impl"), Pat::Str("}")), _ => return (Pat::Str(""), Pat::Str("")), diff --git a/src/tools/clippy/clippy_utils/src/lib.rs b/src/tools/clippy/clippy_utils/src/lib.rs index ad8c816e204..ff1ee663f9b 100644 --- a/src/tools/clippy/clippy_utils/src/lib.rs +++ b/src/tools/clippy/clippy_utils/src/lib.rs @@ -89,6 +89,7 @@ use std::sync::{Mutex, MutexGuard, OnceLock}; use itertools::Itertools; use rustc_abi::Integer; +use rustc_ast::join_path_syms; use rustc_ast::ast::{self, LitKind, RangeLimits}; use rustc_attr_data_structures::{AttributeKind, find_attr}; use rustc_data_structures::fx::FxHashMap; @@ -3245,8 +3246,8 @@ fn maybe_get_relative_path(from: &DefPath, to: &DefPath, max_super: usize) -> St // a::b::c ::d::sym refers to // e::f::sym:: :: // result should be super::super::super::super::e::f - if let DefPathData::TypeNs(s) = l { - path.push(s.to_string()); + if let DefPathData::TypeNs(sym) = l { + path.push(sym); } if let DefPathData::TypeNs(_) = r { go_up_by += 1; @@ -3256,7 +3257,7 @@ fn maybe_get_relative_path(from: &DefPath, to: &DefPath, max_super: usize) -> St // a::b::sym:: :: refers to // c::d::e ::f::sym // when looking at `f` - Left(DefPathData::TypeNs(sym)) => path.push(sym.to_string()), + Left(DefPathData::TypeNs(sym)) => path.push(sym), // consider: // a::b::c ::d::sym refers to // e::f::sym:: :: @@ -3268,17 +3269,17 @@ fn maybe_get_relative_path(from: &DefPath, to: &DefPath, max_super: usize) -> St if go_up_by > max_super { // `super` chain would be too long, just use the absolute path instead - once(String::from("crate")) - .chain(to.data.iter().filter_map(|el| { + join_path_syms( + once(kw::Crate).chain(to.data.iter().filter_map(|el| { if let DefPathData::TypeNs(sym) = el.data { - Some(sym.to_string()) + Some(sym) } else { None } })) - .join("::") + ) } else { - repeat_n(String::from("super"), go_up_by).chain(path).join("::") + join_path_syms(repeat_n(kw::Super, go_up_by).chain(path)) } } diff --git a/src/tools/clippy/tests/ui/assign_ops.fixed b/src/tools/clippy/tests/ui/assign_ops.fixed index 99beea850a2..eee61f949e7 100644 --- a/src/tools/clippy/tests/ui/assign_ops.fixed +++ b/src/tools/clippy/tests/ui/assign_ops.fixed @@ -84,8 +84,7 @@ mod issue14871 { const ONE: Self; } - #[const_trait] - pub trait NumberConstants { + pub const trait NumberConstants { fn constant(value: usize) -> Self; } diff --git a/src/tools/clippy/tests/ui/assign_ops.rs b/src/tools/clippy/tests/ui/assign_ops.rs index 900d5ad38e0..13ffcee0a3c 100644 --- a/src/tools/clippy/tests/ui/assign_ops.rs +++ b/src/tools/clippy/tests/ui/assign_ops.rs @@ -84,8 +84,7 @@ mod issue14871 { const ONE: Self; } - #[const_trait] - pub trait NumberConstants { + pub const trait NumberConstants { fn constant(value: usize) -> Self; } diff --git a/src/tools/clippy/tests/ui/missing_const_for_fn/const_trait.fixed b/src/tools/clippy/tests/ui/missing_const_for_fn/const_trait.fixed index f1d5579a723..c113c1caaa6 100644 --- a/src/tools/clippy/tests/ui/missing_const_for_fn/const_trait.fixed +++ b/src/tools/clippy/tests/ui/missing_const_for_fn/const_trait.fixed @@ -3,8 +3,7 @@ // Reduced test case from https://github.com/rust-lang/rust-clippy/issues/14658 -#[const_trait] -trait ConstTrait { +const trait ConstTrait { fn method(self); } diff --git a/src/tools/clippy/tests/ui/missing_const_for_fn/const_trait.rs b/src/tools/clippy/tests/ui/missing_const_for_fn/const_trait.rs index d495759526d..69248bc52d5 100644 --- a/src/tools/clippy/tests/ui/missing_const_for_fn/const_trait.rs +++ b/src/tools/clippy/tests/ui/missing_const_for_fn/const_trait.rs @@ -3,8 +3,7 @@ // Reduced test case from https://github.com/rust-lang/rust-clippy/issues/14658 -#[const_trait] -trait ConstTrait { +const trait ConstTrait { fn method(self); } diff --git a/src/tools/clippy/tests/ui/missing_const_for_fn/const_trait.stderr b/src/tools/clippy/tests/ui/missing_const_for_fn/const_trait.stderr index b994b88fac6..7ea009cfc9b 100644 --- a/src/tools/clippy/tests/ui/missing_const_for_fn/const_trait.stderr +++ b/src/tools/clippy/tests/ui/missing_const_for_fn/const_trait.stderr @@ -1,5 +1,5 @@ error: this could be a `const fn` - --> tests/ui/missing_const_for_fn/const_trait.rs:24:1 + --> tests/ui/missing_const_for_fn/const_trait.rs:23:1 | LL | / fn can_be_const() { LL | | 0u64.method(); diff --git a/src/tools/clippy/tests/ui/ptr_arg.rs b/src/tools/clippy/tests/ui/ptr_arg.rs index 65f3f05d6cb..578641e910d 100644 --- a/src/tools/clippy/tests/ui/ptr_arg.rs +++ b/src/tools/clippy/tests/ui/ptr_arg.rs @@ -312,7 +312,7 @@ mod issue_9218 { // Inferred to be `&'a str`, afaik. fn cow_good_ret_ty<'a>(input: &'a Cow<'a, str>) -> &str { - //~^ ERROR: lifetime flowing from input to output with different syntax + //~^ ERROR: eliding a lifetime that's named elsewhere is confusing todo!() } } diff --git a/src/tools/clippy/tests/ui/ptr_arg.stderr b/src/tools/clippy/tests/ui/ptr_arg.stderr index 600343754e1..fd9ceddfe11 100644 --- a/src/tools/clippy/tests/ui/ptr_arg.stderr +++ b/src/tools/clippy/tests/ui/ptr_arg.stderr @@ -231,18 +231,19 @@ error: writing `&String` instead of `&str` involves a new object where a slice w LL | fn good(v1: &String, v2: &String) { | ^^^^^^^ help: change this to: `&str` -error: lifetime flowing from input to output with different syntax can be confusing +error: eliding a lifetime that's named elsewhere is confusing --> tests/ui/ptr_arg.rs:314:36 | LL | fn cow_good_ret_ty<'a>(input: &'a Cow<'a, str>) -> &str { - | ^^ ^^ ---- the lifetime gets resolved as `'a` + | ^^ ^^ ---- the same lifetime is elided here | | | - | | these lifetimes flow to the output - | these lifetimes flow to the output + | | the lifetime is named here + | the lifetime is named here | + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing = note: `-D mismatched-lifetime-syntaxes` implied by `-D warnings` = help: to override `-D warnings` add `#[allow(mismatched_lifetime_syntaxes)]` -help: one option is to consistently use `'a` +help: consistently use `'a` | LL | fn cow_good_ret_ty<'a>(input: &'a Cow<'a, str>) -> &'a str { | ++ diff --git a/src/tools/clippy/tests/ui/trait_duplication_in_bounds.fixed b/src/tools/clippy/tests/ui/trait_duplication_in_bounds.fixed index cf52ecf2f03..88ba5f810b4 100644 --- a/src/tools/clippy/tests/ui/trait_duplication_in_bounds.fixed +++ b/src/tools/clippy/tests/ui/trait_duplication_in_bounds.fixed @@ -167,8 +167,7 @@ where } // #13476 -#[const_trait] -trait ConstTrait {} +const trait ConstTrait {} const fn const_trait_bounds_good<T: ConstTrait + [const] ConstTrait>() {} const fn const_trait_bounds_bad<T: [const] ConstTrait>() {} diff --git a/src/tools/clippy/tests/ui/trait_duplication_in_bounds.rs b/src/tools/clippy/tests/ui/trait_duplication_in_bounds.rs index 955562f08dc..19a4e70e294 100644 --- a/src/tools/clippy/tests/ui/trait_duplication_in_bounds.rs +++ b/src/tools/clippy/tests/ui/trait_duplication_in_bounds.rs @@ -167,8 +167,7 @@ where } // #13476 -#[const_trait] -trait ConstTrait {} +const trait ConstTrait {} const fn const_trait_bounds_good<T: ConstTrait + [const] ConstTrait>() {} const fn const_trait_bounds_bad<T: [const] ConstTrait + [const] ConstTrait>() {} diff --git a/src/tools/clippy/tests/ui/trait_duplication_in_bounds.stderr b/src/tools/clippy/tests/ui/trait_duplication_in_bounds.stderr index ab31721ef51..a56a683de97 100644 --- a/src/tools/clippy/tests/ui/trait_duplication_in_bounds.stderr +++ b/src/tools/clippy/tests/ui/trait_duplication_in_bounds.stderr @@ -59,19 +59,19 @@ LL | fn bad_trait_object(arg0: &(dyn Any + Send + Send)) { | ^^^^^^^^^^^^^^^^^ help: try: `Any + Send` error: these bounds contain repeated elements - --> tests/ui/trait_duplication_in_bounds.rs:174:36 + --> tests/ui/trait_duplication_in_bounds.rs:173:36 | LL | const fn const_trait_bounds_bad<T: [const] ConstTrait + [const] ConstTrait>() {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `[const] ConstTrait` error: these where clauses contain repeated elements - --> tests/ui/trait_duplication_in_bounds.rs:181:8 + --> tests/ui/trait_duplication_in_bounds.rs:180:8 | LL | T: IntoIterator<Item = U::Owned> + IntoIterator<Item = U::Owned>, | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `IntoIterator<Item = U::Owned>` error: these where clauses contain repeated elements - --> tests/ui/trait_duplication_in_bounds.rs:203:8 + --> tests/ui/trait_duplication_in_bounds.rs:202:8 | LL | T: AssocConstTrait<ASSOC = 0> + AssocConstTrait<ASSOC = 0>, | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `AssocConstTrait<ASSOC = 0>` diff --git a/src/tools/lint-docs/Cargo.toml b/src/tools/lint-docs/Cargo.toml index e914a2df2ba..6e1ab84ed18 100644 --- a/src/tools/lint-docs/Cargo.toml +++ b/src/tools/lint-docs/Cargo.toml @@ -7,7 +7,7 @@ description = "A script to extract the lint documentation for the rustc book." # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html [dependencies] -rustc-literal-escaper = "0.0.4" +rustc-literal-escaper = "0.0.5" serde_json = "1.0.57" tempfile = "3.1.0" walkdir = "2.3.1" diff --git a/src/tools/miri/README.md b/src/tools/miri/README.md index b05acff72b5..7816ce1ac56 100644 --- a/src/tools/miri/README.md +++ b/src/tools/miri/README.md @@ -342,9 +342,9 @@ environment variable. We first document the most relevant and most commonly used is enabled (the default), this is also used to emulate system entropy. The default seed is 0. You can increase test coverage by running Miri multiple times with different seeds. * `-Zmiri-strict-provenance` enables [strict - provenance](https://github.com/rust-lang/rust/issues/95228) checking in Miri. This means that - casting an integer to a pointer will stop execution because the provenance of the pointer - cannot be determined. + provenance](https://doc.rust-lang.org/nightly/std/ptr/index.html#strict-provenance) checking in + Miri. This means that casting an integer to a pointer will stop execution because the provenance + of the pointer cannot be determined. * `-Zmiri-symbolic-alignment-check` makes the alignment check more strict. By default, alignment is checked by casting the pointer to an integer, and making sure that is a multiple of the alignment. This can lead to cases where a program passes the alignment check by pure chance, because things diff --git a/src/tools/miri/miri-script/Cargo.toml b/src/tools/miri/miri-script/Cargo.toml index 462a9cc62bf..9240788d6bc 100644 --- a/src/tools/miri/miri-script/Cargo.toml +++ b/src/tools/miri/miri-script/Cargo.toml @@ -7,6 +7,7 @@ repository = "https://github.com/rust-lang/miri" version = "0.1.0" default-run = "miri-script" edition = "2024" +rust-version = "1.85" [workspace] # We make this a workspace root so that cargo does not go looking in ../Cargo.toml for the workspace root. diff --git a/src/tools/miri/miri-script/src/commands.rs b/src/tools/miri/miri-script/src/commands.rs index e948beef004..e6ebdf54e38 100644 --- a/src/tools/miri/miri-script/src/commands.rs +++ b/src/tools/miri/miri-script/src/commands.rs @@ -702,7 +702,6 @@ impl Command { let mut early_flags = Vec::<OsString>::new(); // In `dep` mode, the target is already passed via `MIRI_TEST_TARGET` - #[expect(clippy::collapsible_if)] // we need to wait until this is stable if !dep { if let Some(target) = &target { early_flags.push("--target".into()); @@ -735,7 +734,6 @@ impl Command { // Add Miri flags let mut cmd = cmd.args(&miri_flags).args(&early_flags).args(&flags); // For `--dep` we also need to set the target in the env var. - #[expect(clippy::collapsible_if)] // we need to wait until this is stable if dep { if let Some(target) = &target { cmd = cmd.env("MIRI_TEST_TARGET", target); diff --git a/src/tools/miri/rust-version b/src/tools/miri/rust-version index 0130cf13a45..67f27e7aa2c 100644 --- a/src/tools/miri/rust-version +++ b/src/tools/miri/rust-version @@ -1 +1 @@ -733b47ea4b1b86216f14ef56e49440c33933f230 +7f2065a4bae1faed5bab928c670964eafbf43b55 diff --git a/src/tools/miri/src/alloc/isolated_alloc.rs b/src/tools/miri/src/alloc/isolated_alloc.rs index a7bb9b4da75..7b2f1a3eebf 100644 --- a/src/tools/miri/src/alloc/isolated_alloc.rs +++ b/src/tools/miri/src/alloc/isolated_alloc.rs @@ -302,23 +302,20 @@ impl IsolatedAlloc { } } - /// Returns a vector of page addresses managed by the allocator. - pub fn pages(&self) -> Vec<usize> { - let mut pages: Vec<usize> = - self.page_ptrs.iter().map(|p| p.expose_provenance().get()).collect(); - for (ptr, size) in self.huge_ptrs.iter() { - for i in 0..size / self.page_size { - pages.push(ptr.expose_provenance().get().strict_add(i * self.page_size)); - } - } - pages + /// Returns a list of page addresses managed by the allocator. + pub fn pages(&self) -> impl Iterator<Item = usize> { + let pages = self.page_ptrs.iter().map(|p| p.expose_provenance().get()); + pages.chain(self.huge_ptrs.iter().flat_map(|(ptr, size)| { + (0..size / self.page_size) + .map(|i| ptr.expose_provenance().get().strict_add(i * self.page_size)) + })) } /// Protects all owned memory as `PROT_NONE`, preventing accesses. /// /// SAFETY: Accessing memory after this point will result in a segfault /// unless it is first unprotected. - pub unsafe fn prepare_ffi(&mut self) -> Result<(), nix::errno::Errno> { + pub unsafe fn start_ffi(&mut self) -> Result<(), nix::errno::Errno> { let prot = mman::ProtFlags::PROT_NONE; unsafe { self.mprotect(prot) } } @@ -326,7 +323,7 @@ impl IsolatedAlloc { /// Deprotects all owned memory by setting it to RW. Erroring here is very /// likely unrecoverable, so it may panic if applying those permissions /// fails. - pub fn unprep_ffi(&mut self) { + pub fn end_ffi(&mut self) { let prot = mman::ProtFlags::PROT_READ | mman::ProtFlags::PROT_WRITE; unsafe { self.mprotect(prot).unwrap(); diff --git a/src/tools/miri/src/bin/log/tracing_chrome.rs b/src/tools/miri/src/bin/log/tracing_chrome.rs index 459acea6f0b..5a96633c99e 100644 --- a/src/tools/miri/src/bin/log/tracing_chrome.rs +++ b/src/tools/miri/src/bin/log/tracing_chrome.rs @@ -1,8 +1,18 @@ // SPDX-License-Identifier: MIT // SPDX-FileCopyrightText: Copyright (c) 2020 Thoren Paulson -//! This file is taken unmodified from the following link, except for file attributes and -//! `extern crate` at the top. -//! https://github.com/thoren-d/tracing-chrome/blob/7e2625ab4aeeef2f0ef9bde9d6258dd181c04472/src/lib.rs +//! This file was initially taken from the following link: +//! <https://github.com/thoren-d/tracing-chrome/blob/7e2625ab4aeeef2f0ef9bde9d6258dd181c04472/src/lib.rs> +//! +//! The precise changes that were made to the original file can be found in git history +//! (`git log -- path/to/tracing_chrome.rs`), but in summary: +//! - the file attributes were changed and `extern crate` was added at the top +//! - if a tracing span has a field called "tracing_separate_thread", it will be given a separate +//! span ID even in [TraceStyle::Threaded] mode, to make it appear on a separate line when viewing +//! the trace in <https://ui.perfetto.dev>. This is the syntax to trigger this behavior: +//! ```rust +//! tracing::info_span!("my_span", tracing_separate_thread = tracing::field::Empty, /* ... */) +//! ``` +//! //! Depending on the tracing-chrome crate from crates.io is unfortunately not possible, since it //! depends on `tracing_core` which conflicts with rustc_private's `tracing_core` (meaning it would //! not be possible to use the [ChromeLayer] in a context that expects a [Layer] from @@ -79,14 +89,26 @@ where } /// Decides how traces will be recorded. +/// Also see <https://docs.google.com/document/d/1CvAClvFfyA5R-PhYUmn5OOQtYMH4h6I0nSsKchNAySU/preview#heading=h.jh64i9l3vwa1> #[derive(Default)] pub enum TraceStyle { - /// Traces will be recorded as a group of threads. + /// Traces will be recorded as a group of threads, and all spans on the same thread will appear + /// on a single trace line in <https://ui.perfetto.dev>. /// In this style, spans should be entered and exited on the same thread. + /// + /// If a tracing span has a field called "tracing_separate_thread", it will be given a separate + /// span ID even in this mode, to make it appear on a separate line when viewing the trace in + /// <https://ui.perfetto.dev>. This is the syntax to trigger this behavior: + /// ```rust + /// tracing::info_span!("my_span", tracing_separate_thread = tracing::field::Empty, /* ... */) + /// ``` + /// [tracing::field::Empty] is used so that other tracing layers (e.g. the logger) will ignore + /// the "tracing_separate_thread" argument and not print out anything for it. #[default] Threaded, - /// Traces will recorded as a group of asynchronous operations. + /// Traces will recorded as a group of asynchronous operations. All spans will be given separate + /// span IDs and will appear on separate trace lines in <https://ui.perfetto.dev>. Async, } @@ -497,31 +519,39 @@ where } } - fn get_root_id(span: SpanRef<S>) -> u64 { - span.scope() - .from_root() - .take(1) - .next() - .unwrap_or(span) - .id() - .into_u64() + fn get_root_id(&self, span: SpanRef<S>) -> Option<u64> { + match self.trace_style { + TraceStyle::Threaded => { + if span.fields().field("tracing_separate_thread").is_some() { + // assign an independent "id" to spans with argument "tracing_separate_thread", + // so they appear a separate trace line in trace visualization tools, see + // https://docs.google.com/document/d/1CvAClvFfyA5R-PhYUmn5OOQtYMH4h6I0nSsKchNAySU/preview#heading=h.jh64i9l3vwa1 + Some(span.id().into_u64()) + } else { + None + } + }, + TraceStyle::Async => Some( + span.scope() + .from_root() + .take(1) + .next() + .unwrap_or(span) + .id() + .into_u64() + ), + } } fn enter_span(&self, span: SpanRef<S>, ts: f64) { let callsite = self.get_callsite(EventOrSpan::Span(&span)); - let root_id = match self.trace_style { - TraceStyle::Async => Some(ChromeLayer::get_root_id(span)), - _ => None, - }; + let root_id = self.get_root_id(span); self.send_message(Message::Enter(ts, callsite, root_id)); } fn exit_span(&self, span: SpanRef<S>, ts: f64) { let callsite = self.get_callsite(EventOrSpan::Span(&span)); - let root_id = match self.trace_style { - TraceStyle::Async => Some(ChromeLayer::get_root_id(span)), - _ => None, - }; + let root_id = self.get_root_id(span); self.send_message(Message::Exit(ts, callsite, root_id)); } diff --git a/src/tools/miri/src/bin/miri.rs b/src/tools/miri/src/bin/miri.rs index e3b579a4ac6..61cebedf081 100644 --- a/src/tools/miri/src/bin/miri.rs +++ b/src/tools/miri/src/bin/miri.rs @@ -233,8 +233,6 @@ impl rustc_driver::Callbacks for MiriCompilerCalls { } else { let return_code = miri::eval_entry(tcx, entry_def_id, entry_type, &config, None) .unwrap_or_else(|| { - //#[cfg(target_os = "linux")] - //miri::native_lib::register_retcode_sv(rustc_driver::EXIT_FAILURE); tcx.dcx().abort_if_errors(); rustc_driver::EXIT_FAILURE }); @@ -337,6 +335,9 @@ impl rustc_driver::Callbacks for MiriBeRustCompilerCalls { fn exit(exit_code: i32) -> ! { // Drop the tracing guard before exiting, so tracing calls are flushed correctly. deinit_loggers(); + // Make sure the supervisor knows about the code code. + #[cfg(target_os = "linux")] + miri::native_lib::register_retcode_sv(exit_code); std::process::exit(exit_code); } @@ -355,6 +356,11 @@ fn run_compiler_and_exit( args: &[String], callbacks: &mut (dyn rustc_driver::Callbacks + Send), ) -> ! { + // Install the ctrlc handler that sets `rustc_const_eval::CTRL_C_RECEIVED`, even if + // MIRI_BE_RUSTC is set. We do this late so that when `native_lib::init_sv` is called, + // there are no other threads. + rustc_driver::install_ctrlc_handler(); + // Invoke compiler, catch any unwinding panics and handle return code. let exit_code = rustc_driver::catch_with_exit_code(move || rustc_driver::run_compiler(args, callbacks)); @@ -439,10 +445,6 @@ fn main() { let args = rustc_driver::catch_fatal_errors(|| rustc_driver::args::raw_args(&early_dcx)) .unwrap_or_else(|_| std::process::exit(rustc_driver::EXIT_FAILURE)); - // Install the ctrlc handler that sets `rustc_const_eval::CTRL_C_RECEIVED`, even if - // MIRI_BE_RUSTC is set. - rustc_driver::install_ctrlc_handler(); - // If the environment asks us to actually be rustc, then do that. if let Some(crate_kind) = env::var_os("MIRI_BE_RUSTC") { // Earliest rustc setup. @@ -750,15 +752,15 @@ fn main() { debug!("rustc arguments: {:?}", rustc_args); debug!("crate arguments: {:?}", miri_config.args); - #[cfg(target_os = "linux")] if !miri_config.native_lib.is_empty() && miri_config.native_lib_enable_tracing { - // FIXME: This should display a diagnostic / warning on error - // SAFETY: If any other threads exist at this point (namely for the ctrlc - // handler), they will not interact with anything on the main rustc/Miri - // thread in an async-signal-unsafe way such as by accessing shared - // semaphores, etc.; the handler only calls `sleep()` and `exit()`, which - // are async-signal-safe, as is accessing atomics - //let _ = unsafe { miri::native_lib::init_sv() }; + // SAFETY: No other threads are running + #[cfg(target_os = "linux")] + if unsafe { miri::native_lib::init_sv() }.is_err() { + eprintln!( + "warning: The native-lib tracer could not be started. Is this an x86 Linux system, and does Miri have permissions to ptrace?\n\ + Falling back to non-tracing native-lib mode." + ); + } } run_compiler_and_exit( &rustc_args, diff --git a/src/tools/miri/src/borrow_tracker/mod.rs b/src/tools/miri/src/borrow_tracker/mod.rs index 36c61053a32..ec6c2c60ca9 100644 --- a/src/tools/miri/src/borrow_tracker/mod.rs +++ b/src/tools/miri/src/borrow_tracker/mod.rs @@ -260,6 +260,7 @@ impl GlobalStateInner { kind: MemoryKind, machine: &MiriMachine<'_>, ) -> AllocState { + let _span = enter_trace_span!(borrow_tracker::new_allocation, ?id, ?alloc_size, ?kind); match self.borrow_tracker_method { BorrowTrackerMethod::StackedBorrows => AllocState::StackedBorrows(Box::new(RefCell::new(Stacks::new_allocation( @@ -280,6 +281,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { kind: RetagKind, val: &ImmTy<'tcx>, ) -> InterpResult<'tcx, ImmTy<'tcx>> { + let _span = enter_trace_span!(borrow_tracker::retag_ptr_value, ?kind, ?val.layout); let this = self.eval_context_mut(); let method = this.machine.borrow_tracker.as_ref().unwrap().borrow().borrow_tracker_method; match method { @@ -293,6 +295,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { kind: RetagKind, place: &PlaceTy<'tcx>, ) -> InterpResult<'tcx> { + let _span = enter_trace_span!(borrow_tracker::retag_place_contents, ?kind, ?place); let this = self.eval_context_mut(); let method = this.machine.borrow_tracker.as_ref().unwrap().borrow().borrow_tracker_method; match method { @@ -302,6 +305,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { } fn protect_place(&mut self, place: &MPlaceTy<'tcx>) -> InterpResult<'tcx, MPlaceTy<'tcx>> { + let _span = enter_trace_span!(borrow_tracker::protect_place, ?place); let this = self.eval_context_mut(); let method = this.machine.borrow_tracker.as_ref().unwrap().borrow().borrow_tracker_method; match method { @@ -311,6 +315,8 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { } fn expose_tag(&self, alloc_id: AllocId, tag: BorTag) -> InterpResult<'tcx> { + let _span = + enter_trace_span!(borrow_tracker::expose_tag, alloc_id = alloc_id.0, tag = tag.0); let this = self.eval_context_ref(); let method = this.machine.borrow_tracker.as_ref().unwrap().borrow().borrow_tracker_method; match method { @@ -354,6 +360,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { &self, frame: &Frame<'tcx, Provenance, FrameExtra<'tcx>>, ) -> InterpResult<'tcx> { + let _span = enter_trace_span!(borrow_tracker::on_stack_pop); let this = self.eval_context_ref(); let borrow_tracker = this.machine.borrow_tracker.as_ref().unwrap(); // The body of this loop needs `borrow_tracker` immutably @@ -431,6 +438,7 @@ impl AllocState { range: AllocRange, machine: &MiriMachine<'tcx>, ) -> InterpResult<'tcx> { + let _span = enter_trace_span!(borrow_tracker::before_memory_read, alloc_id = alloc_id.0); match self { AllocState::StackedBorrows(sb) => sb.borrow_mut().before_memory_read(alloc_id, prov_extra, range, machine), @@ -452,6 +460,7 @@ impl AllocState { range: AllocRange, machine: &MiriMachine<'tcx>, ) -> InterpResult<'tcx> { + let _span = enter_trace_span!(borrow_tracker::before_memory_write, alloc_id = alloc_id.0); match self { AllocState::StackedBorrows(sb) => sb.get_mut().before_memory_write(alloc_id, prov_extra, range, machine), @@ -473,6 +482,8 @@ impl AllocState { size: Size, machine: &MiriMachine<'tcx>, ) -> InterpResult<'tcx> { + let _span = + enter_trace_span!(borrow_tracker::before_memory_deallocation, alloc_id = alloc_id.0); match self { AllocState::StackedBorrows(sb) => sb.get_mut().before_memory_deallocation(alloc_id, prov_extra, size, machine), @@ -482,6 +493,7 @@ impl AllocState { } pub fn remove_unreachable_tags(&self, tags: &FxHashSet<BorTag>) { + let _span = enter_trace_span!(borrow_tracker::remove_unreachable_tags); match self { AllocState::StackedBorrows(sb) => sb.borrow_mut().remove_unreachable_tags(tags), AllocState::TreeBorrows(tb) => tb.borrow_mut().remove_unreachable_tags(tags), @@ -496,6 +508,11 @@ impl AllocState { tag: BorTag, alloc_id: AllocId, // diagnostics ) -> InterpResult<'tcx> { + let _span = enter_trace_span!( + borrow_tracker::release_protector, + alloc_id = alloc_id.0, + tag = tag.0 + ); match self { AllocState::StackedBorrows(_sb) => interp_ok(()), AllocState::TreeBorrows(tb) => @@ -506,6 +523,7 @@ impl AllocState { impl VisitProvenance for AllocState { fn visit_provenance(&self, visit: &mut VisitWith<'_>) { + let _span = enter_trace_span!(borrow_tracker::visit_provenance); match self { AllocState::StackedBorrows(sb) => sb.visit_provenance(visit), AllocState::TreeBorrows(tb) => tb.visit_provenance(visit), diff --git a/src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs b/src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs index b8bcacf7c99..834a4b41f22 100644 --- a/src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs +++ b/src/tools/miri/src/borrow_tracker/stacked_borrows/mod.rs @@ -30,7 +30,7 @@ pub type AllocState = Stacks; #[derive(Clone, Debug)] pub struct Stacks { // Even reading memory can have effects on the stack, so we need a `RefCell` here. - stacks: RangeMap<Stack>, + stacks: DedupRangeMap<Stack>, /// Stores past operations on this allocation history: AllocHistory, /// The set of tags that have been exposed inside this allocation. @@ -468,7 +468,7 @@ impl<'tcx> Stacks { let stack = Stack::new(item); Stacks { - stacks: RangeMap::new(size, stack), + stacks: DedupRangeMap::new(size, stack), history: AllocHistory::new(id, item, machine), exposed_tags: FxHashSet::default(), } diff --git a/src/tools/miri/src/borrow_tracker/tree_borrows/mod.rs b/src/tools/miri/src/borrow_tracker/tree_borrows/mod.rs index a0761cb07a1..c157c69d7c8 100644 --- a/src/tools/miri/src/borrow_tracker/tree_borrows/mod.rs +++ b/src/tools/miri/src/borrow_tracker/tree_borrows/mod.rs @@ -314,7 +314,7 @@ trait EvalContextPrivExt<'tcx>: crate::MiriInterpCxExt<'tcx> { let span = this.machine.current_span(); // Store initial permissions and their corresponding range. - let mut perms_map: RangeMap<LocationState> = RangeMap::new( + let mut perms_map: DedupRangeMap<LocationState> = DedupRangeMap::new( ptr_size, LocationState::new_accessed(Permission::new_disabled(), IdempotentForeignAccess::None), // this will be overwritten ); diff --git a/src/tools/miri/src/borrow_tracker/tree_borrows/tree.rs b/src/tools/miri/src/borrow_tracker/tree_borrows/tree.rs index 48e4a19e263..1f29bcfc2b0 100644 --- a/src/tools/miri/src/borrow_tracker/tree_borrows/tree.rs +++ b/src/tools/miri/src/borrow_tracker/tree_borrows/tree.rs @@ -247,7 +247,7 @@ pub struct Tree { /// `unwrap` any `perm.get(key)`. /// /// We do uphold the fact that `keys(perms)` is a subset of `keys(nodes)` - pub(super) rperms: RangeMap<UniValMap<LocationState>>, + pub(super) rperms: DedupRangeMap<UniValMap<LocationState>>, /// The index of the root node. pub(super) root: UniIndex, } @@ -609,7 +609,7 @@ impl Tree { IdempotentForeignAccess::None, ), ); - RangeMap::new(size, perms) + DedupRangeMap::new(size, perms) }; Self { root: root_idx, nodes, rperms, tag_mapping } } @@ -631,7 +631,7 @@ impl<'tcx> Tree { base_offset: Size, parent_tag: BorTag, new_tag: BorTag, - initial_perms: RangeMap<LocationState>, + initial_perms: DedupRangeMap<LocationState>, default_perm: Permission, protected: bool, span: Span, diff --git a/src/tools/miri/src/concurrency/data_race.rs b/src/tools/miri/src/concurrency/data_race.rs index b5e7e9d0ac0..38d76f5cf73 100644 --- a/src/tools/miri/src/concurrency/data_race.rs +++ b/src/tools/miri/src/concurrency/data_race.rs @@ -997,7 +997,7 @@ pub trait EvalContextExt<'tcx>: MiriInterpCxExt<'tcx> { #[derive(Debug, Clone)] pub struct VClockAlloc { /// Assigning each byte a MemoryCellClocks. - alloc_ranges: RefCell<RangeMap<MemoryCellClocks>>, + alloc_ranges: RefCell<DedupRangeMap<MemoryCellClocks>>, } impl VisitProvenance for VClockAlloc { @@ -1045,7 +1045,7 @@ impl VClockAlloc { (VTimestamp::ZERO, global.thread_index(ThreadId::MAIN_THREAD)), }; VClockAlloc { - alloc_ranges: RefCell::new(RangeMap::new( + alloc_ranges: RefCell::new(DedupRangeMap::new( len, MemoryCellClocks::new(alloc_timestamp, alloc_index), )), diff --git a/src/tools/miri/src/concurrency/mod.rs b/src/tools/miri/src/concurrency/mod.rs index 49bcc0d30b5..c2ea8a00dec 100644 --- a/src/tools/miri/src/concurrency/mod.rs +++ b/src/tools/miri/src/concurrency/mod.rs @@ -2,7 +2,6 @@ pub mod cpu_affinity; pub mod data_race; mod data_race_handler; pub mod init_once; -mod range_object_map; pub mod sync; pub mod thread; mod vector_clock; diff --git a/src/tools/miri/src/concurrency/thread.rs b/src/tools/miri/src/concurrency/thread.rs index a4e93f9222c..878afdf2517 100644 --- a/src/tools/miri/src/concurrency/thread.rs +++ b/src/tools/miri/src/concurrency/thread.rs @@ -186,15 +186,15 @@ pub struct Thread<'tcx> { /// The join status. join_status: ThreadJoinStatus, - /// Stack of active panic payloads for the current thread. Used for storing - /// the argument of the call to `miri_start_unwind` (the panic payload) when unwinding. + /// Stack of active unwind payloads for the current thread. Used for storing + /// the argument of the call to `miri_start_unwind` (the payload) when unwinding. /// This is pointer-sized, and matches the `Payload` type in `src/libpanic_unwind/miri.rs`. /// /// In real unwinding, the payload gets passed as an argument to the landing pad, /// which then forwards it to 'Resume'. However this argument is implicit in MIR, /// so we have to store it out-of-band. When there are multiple active unwinds, /// the innermost one is always caught first, so we can store them as a stack. - pub(crate) panic_payloads: Vec<ImmTy<'tcx>>, + pub(crate) unwind_payloads: Vec<ImmTy<'tcx>>, /// Last OS error location in memory. It is a 32-bit integer. pub(crate) last_error: Option<MPlaceTy<'tcx>>, @@ -282,7 +282,7 @@ impl<'tcx> Thread<'tcx> { stack: Vec::new(), top_user_relevant_frame: None, join_status: ThreadJoinStatus::Joinable, - panic_payloads: Vec::new(), + unwind_payloads: Vec::new(), last_error: None, on_stack_empty, } @@ -292,7 +292,7 @@ impl<'tcx> Thread<'tcx> { impl VisitProvenance for Thread<'_> { fn visit_provenance(&self, visit: &mut VisitWith<'_>) { let Thread { - panic_payloads: panic_payload, + unwind_payloads: panic_payload, last_error, stack, top_user_relevant_frame: _, @@ -677,6 +677,8 @@ trait EvalContextPrivExt<'tcx>: MiriInterpCxExt<'tcx> { fn run_on_stack_empty(&mut self) -> InterpResult<'tcx, Poll<()>> { let this = self.eval_context_mut(); // Inform GenMC that a thread has finished all user code. GenMC needs to know this for scheduling. + // FIXME(GenMC): Thread-local destructors *are* user code, so this is odd. Also now that we + // support pre-main constructors, it can get called there as well. if let Some(genmc_ctx) = this.machine.data_race.as_genmc_ref() { let thread_id = this.active_thread(); genmc_ctx.handle_thread_stack_empty(thread_id); diff --git a/src/tools/miri/src/concurrency/weak_memory.rs b/src/tools/miri/src/concurrency/weak_memory.rs index 95c010be2fd..a752ef7e454 100644 --- a/src/tools/miri/src/concurrency/weak_memory.rs +++ b/src/tools/miri/src/concurrency/weak_memory.rs @@ -90,9 +90,9 @@ use rustc_data_structures::fx::FxHashMap; use super::AllocDataRaceHandler; use super::data_race::{GlobalState as DataRaceState, ThreadClockSet}; -use super::range_object_map::{AccessType, RangeObjectMap}; use super::vector_clock::{VClock, VTimestamp, VectorIdx}; use crate::concurrency::GlobalDataRaceHandler; +use crate::data_structures::range_object_map::{AccessType, RangeObjectMap}; use crate::*; pub type AllocState = StoreBufferAlloc; diff --git a/src/tools/miri/src/range_map.rs b/src/tools/miri/src/data_structures/dedup_range_map.rs index 29a5a8537a4..56e9883b1ca 100644 --- a/src/tools/miri/src/range_map.rs +++ b/src/tools/miri/src/data_structures/dedup_range_map.rs @@ -17,18 +17,18 @@ struct Elem<T> { data: T, } #[derive(Clone, Debug)] -pub struct RangeMap<T> { +pub struct DedupRangeMap<T> { v: Vec<Elem<T>>, } -impl<T> RangeMap<T> { +impl<T> DedupRangeMap<T> { /// Creates a new `RangeMap` for the given size, and with the given initial value used for /// the entire range. #[inline(always)] - pub fn new(size: Size, init: T) -> RangeMap<T> { + pub fn new(size: Size, init: T) -> DedupRangeMap<T> { let size = size.bytes(); let v = if size > 0 { vec![Elem { range: 0..size, data: init }] } else { Vec::new() }; - RangeMap { v } + DedupRangeMap { v } } pub fn size(&self) -> Size { @@ -246,7 +246,7 @@ mod tests { use super::*; /// Query the map at every offset in the range and collect the results. - fn to_vec<T: Copy>(map: &RangeMap<T>, offset: u64, len: u64) -> Vec<T> { + fn to_vec<T: Copy>(map: &DedupRangeMap<T>, offset: u64, len: u64) -> Vec<T> { (offset..offset + len) .map(|i| { map.iter(Size::from_bytes(i), Size::from_bytes(1)).next().map(|(_, &t)| t).unwrap() @@ -256,7 +256,7 @@ mod tests { #[test] fn basic_insert() { - let mut map = RangeMap::<i32>::new(Size::from_bytes(20), -1); + let mut map = DedupRangeMap::<i32>::new(Size::from_bytes(20), -1); // Insert. for (_, x) in map.iter_mut(Size::from_bytes(10), Size::from_bytes(1)) { *x = 42; @@ -278,7 +278,7 @@ mod tests { #[test] fn gaps() { - let mut map = RangeMap::<i32>::new(Size::from_bytes(20), -1); + let mut map = DedupRangeMap::<i32>::new(Size::from_bytes(20), -1); for (_, x) in map.iter_mut(Size::from_bytes(11), Size::from_bytes(1)) { *x = 42; } @@ -319,26 +319,26 @@ mod tests { #[test] #[should_panic] fn out_of_range_iter_mut() { - let mut map = RangeMap::<i32>::new(Size::from_bytes(20), -1); + let mut map = DedupRangeMap::<i32>::new(Size::from_bytes(20), -1); let _ = map.iter_mut(Size::from_bytes(11), Size::from_bytes(11)); } #[test] #[should_panic] fn out_of_range_iter() { - let map = RangeMap::<i32>::new(Size::from_bytes(20), -1); + let map = DedupRangeMap::<i32>::new(Size::from_bytes(20), -1); let _ = map.iter(Size::from_bytes(11), Size::from_bytes(11)); } #[test] fn empty_map_iter() { - let map = RangeMap::<i32>::new(Size::from_bytes(0), -1); + let map = DedupRangeMap::<i32>::new(Size::from_bytes(0), -1); let _ = map.iter(Size::from_bytes(0), Size::from_bytes(0)); } #[test] fn empty_map_iter_mut() { - let mut map = RangeMap::<i32>::new(Size::from_bytes(0), -1); + let mut map = DedupRangeMap::<i32>::new(Size::from_bytes(0), -1); let _ = map.iter_mut(Size::from_bytes(0), Size::from_bytes(0)); } } diff --git a/src/tools/miri/src/data_structures/mod.rs b/src/tools/miri/src/data_structures/mod.rs new file mode 100644 index 00000000000..d4468bc57ea --- /dev/null +++ b/src/tools/miri/src/data_structures/mod.rs @@ -0,0 +1,3 @@ +pub mod dedup_range_map; +pub mod mono_hash_map; +pub mod range_object_map; diff --git a/src/tools/miri/src/mono_hash_map.rs b/src/tools/miri/src/data_structures/mono_hash_map.rs index 220233f8ff5..220233f8ff5 100644 --- a/src/tools/miri/src/mono_hash_map.rs +++ b/src/tools/miri/src/data_structures/mono_hash_map.rs diff --git a/src/tools/miri/src/concurrency/range_object_map.rs b/src/tools/miri/src/data_structures/range_object_map.rs index 4c9cf3dc635..4c9cf3dc635 100644 --- a/src/tools/miri/src/concurrency/range_object_map.rs +++ b/src/tools/miri/src/data_structures/range_object_map.rs diff --git a/src/tools/miri/src/eval.rs b/src/tools/miri/src/eval.rs index 425a136dfa5..be6404f64e8 100644 --- a/src/tools/miri/src/eval.rs +++ b/src/tools/miri/src/eval.rs @@ -11,14 +11,14 @@ use rustc_abi::ExternAbi; use rustc_data_structures::fx::{FxHashMap, FxHashSet}; use rustc_hir::def::Namespace; use rustc_hir::def_id::DefId; -use rustc_middle::ty::layout::LayoutCx; +use rustc_middle::ty::layout::{HasTyCtxt, HasTypingEnv, LayoutCx}; use rustc_middle::ty::{self, Ty, TyCtxt}; use rustc_session::config::EntryFnType; use crate::concurrency::GenmcCtx; use crate::concurrency::thread::TlsAllocAction; use crate::diagnostics::report_leaks; -use crate::shims::tls; +use crate::shims::{global_ctor, tls}; use crate::*; #[derive(Copy, Clone, Debug)] @@ -216,9 +216,17 @@ impl Default for MiriConfig { } /// The state of the main thread. Implementation detail of `on_main_stack_empty`. -#[derive(Default, Debug)] +#[derive(Debug)] enum MainThreadState<'tcx> { - #[default] + GlobalCtors { + ctor_state: global_ctor::GlobalCtorState<'tcx>, + /// The main function to call. + entry_id: DefId, + entry_type: MiriEntryFnType, + /// Arguments passed to `main`. + argc: ImmTy<'tcx>, + argv: ImmTy<'tcx>, + }, Running, TlsDtors(tls::TlsDtorsState<'tcx>), Yield { @@ -234,6 +242,15 @@ impl<'tcx> MainThreadState<'tcx> { ) -> InterpResult<'tcx, Poll<()>> { use MainThreadState::*; match self { + GlobalCtors { ctor_state, entry_id, entry_type, argc, argv } => { + match ctor_state.on_stack_empty(this)? { + Poll::Pending => {} // just keep going + Poll::Ready(()) => { + call_main(this, *entry_id, *entry_type, argc.clone(), argv.clone())?; + *self = Running; + } + } + } Running => { *self = TlsDtors(Default::default()); } @@ -309,13 +326,6 @@ pub fn create_ecx<'tcx>( MiriMachine::new(config, layout_cx, genmc_ctx), ); - // Some parts of initialization require a full `InterpCx`. - MiriMachine::late_init(&mut ecx, config, { - let mut state = MainThreadState::default(); - // Cannot capture anything GC-relevant here. - Box::new(move |m| state.on_main_stack_empty(m)) - })?; - // Make sure we have MIR. We check MIR for some stable monomorphic function in libcore. let sentinel = helpers::try_resolve_path(tcx, &["core", "ascii", "escape_default"], Namespace::ValueNS); @@ -326,15 +336,9 @@ pub fn create_ecx<'tcx>( ); } - // Setup first stack frame. - let entry_instance = ty::Instance::mono(tcx, entry_id); - - // First argument is constructed later, because it's skipped for `miri_start.` - - // Second argument (argc): length of `config.args`. + // Compute argc and argv from `config.args`. let argc = ImmTy::from_int(i64::try_from(config.args.len()).unwrap(), ecx.machine.layouts.isize); - // Third argument (`argv`): created from `config.args`. let argv = { // Put each argument in memory, collect pointers. let mut argvs = Vec::<Immediate<Provenance>>::with_capacity(config.args.len()); @@ -359,7 +363,7 @@ pub fn create_ecx<'tcx>( ecx.write_immediate(arg, &place)?; } ecx.mark_immutable(&argvs_place); - // Store `argc` and `argv` for macOS `_NSGetArg{c,v}`. + // Store `argc` and `argv` for macOS `_NSGetArg{c,v}`, and for the GC to see them. { let argc_place = ecx.allocate(ecx.machine.layouts.isize, MiriMemoryKind::Machine.into())?; @@ -374,7 +378,7 @@ pub fn create_ecx<'tcx>( ecx.machine.argv = Some(argv_place.ptr()); } // Store command line as UTF-16 for Windows `GetCommandLineW`. - { + if tcx.sess.target.os == "windows" { // Construct a command string with all the arguments. let cmd_utf16: Vec<u16> = args_to_utf16_command_string(config.args.iter()); @@ -395,11 +399,43 @@ pub fn create_ecx<'tcx>( ImmTy::from_immediate(imm, layout) }; + // Some parts of initialization require a full `InterpCx`. + MiriMachine::late_init(&mut ecx, config, { + let mut main_thread_state = MainThreadState::GlobalCtors { + entry_id, + entry_type, + argc, + argv, + ctor_state: global_ctor::GlobalCtorState::default(), + }; + + // Cannot capture anything GC-relevant here. + // `argc` and `argv` *are* GC_relevant, but they also get stored in `machine.argc` and + // `machine.argv` so we are good. + Box::new(move |m| main_thread_state.on_main_stack_empty(m)) + })?; + + interp_ok(ecx) +} + +// Call the entry function. +fn call_main<'tcx>( + ecx: &mut MiriInterpCx<'tcx>, + entry_id: DefId, + entry_type: MiriEntryFnType, + argc: ImmTy<'tcx>, + argv: ImmTy<'tcx>, +) -> InterpResult<'tcx, ()> { + let tcx = ecx.tcx(); + + // Setup first stack frame. + let entry_instance = ty::Instance::mono(tcx, entry_id); + // Return place (in static memory so that it does not count as leak). let ret_place = ecx.allocate(ecx.machine.layouts.isize, MiriMemoryKind::Machine.into())?; ecx.machine.main_fn_ret_place = Some(ret_place.clone()); - // Call start function. + // Call start function. match entry_type { MiriEntryFnType::Rustc(EntryFnType::Main { .. }) => { let start_id = tcx.lang_items().start_fn().unwrap_or_else(|| { @@ -409,7 +445,7 @@ pub fn create_ecx<'tcx>( let main_ret_ty = main_ret_ty.no_bound_vars().unwrap(); let start_instance = ty::Instance::try_resolve( tcx, - typing_env, + ecx.typing_env(), start_id, tcx.mk_args(&[ty::GenericArg::from(main_ret_ty)]), ) @@ -427,7 +463,7 @@ pub fn create_ecx<'tcx>( ExternAbi::Rust, &[ ImmTy::from_scalar( - Scalar::from_pointer(main_ptr, &ecx), + Scalar::from_pointer(main_ptr, ecx), // FIXME use a proper fn ptr type ecx.machine.layouts.const_raw_ptr, ), @@ -450,7 +486,7 @@ pub fn create_ecx<'tcx>( } } - interp_ok(ecx) + interp_ok(()) } /// Evaluates the entry function specified by `entry_id`. diff --git a/src/tools/miri/src/helpers.rs b/src/tools/miri/src/helpers.rs index c150dc16b07..ccfff7fa94b 100644 --- a/src/tools/miri/src/helpers.rs +++ b/src/tools/miri/src/helpers.rs @@ -13,7 +13,7 @@ use rustc_index::IndexVec; use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrFlags; use rustc_middle::middle::dependency_format::Linkage; use rustc_middle::middle::exported_symbols::ExportedSymbol; -use rustc_middle::ty::layout::{FnAbiOf, LayoutOf, MaybeResult, TyAndLayout}; +use rustc_middle::ty::layout::{LayoutOf, MaybeResult, TyAndLayout}; use rustc_middle::ty::{self, Binder, FloatTy, FnSig, IntTy, Ty, TyCtxt, UintTy}; use rustc_session::config::CrateType; use rustc_span::{Span, Symbol}; @@ -1235,8 +1235,11 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { interp_ok(()) } - /// Lookup an array of immediates stored as a linker section of name `name`. - fn lookup_link_section(&mut self, name: &str) -> InterpResult<'tcx, Vec<ImmTy<'tcx>>> { + /// Lookup an array of immediates from any linker sections matching the provided predicate. + fn lookup_link_section( + &mut self, + include_name: impl Fn(&str) -> bool, + ) -> InterpResult<'tcx, Vec<ImmTy<'tcx>>> { let this = self.eval_context_mut(); let tcx = this.tcx.tcx; @@ -1247,7 +1250,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { let Some(link_section) = attrs.link_section else { return interp_ok(()); }; - if link_section.as_str() == name { + if include_name(link_section.as_str()) { let instance = ty::Instance::mono(tcx, def_id); let const_val = this.eval_global(instance).unwrap_or_else(|err| { panic!( @@ -1431,3 +1434,44 @@ impl ToU64 for usize { self.try_into().unwrap() } } + +/// This struct is needed to enforce `#[must_use]` on values produced by [enter_trace_span] even +/// when the "tracing" feature is not enabled. +#[must_use] +pub struct MaybeEnteredTraceSpan { + #[cfg(feature = "tracing")] + pub _entered_span: tracing::span::EnteredSpan, +} + +/// Enters a [tracing::info_span] only if the "tracing" feature is enabled, otherwise does nothing. +/// This is like [rustc_const_eval::enter_trace_span] except that it does not depend on the +/// [Machine] trait to check if tracing is enabled, because from the Miri codebase we can directly +/// check whether the "tracing" feature is enabled, unlike from the rustc_const_eval codebase. +/// +/// In addition to the syntax accepted by [tracing::span!], this macro optionally allows passing +/// the span name (i.e. the first macro argument) in the form `NAME::SUBNAME` (without quotes) to +/// indicate that the span has name "NAME" (usually the name of the component) and has an additional +/// more specific name "SUBNAME" (usually the function name). The latter is passed to the [tracing] +/// infrastructure as a span field with the name "NAME". This allows not being distracted by +/// subnames when looking at the trace in <https://ui.perfetto.dev>, but when deeper introspection +/// is needed within a component, it's still possible to view the subnames directly in the UI by +/// selecting a span, clicking on the "NAME" argument on the right, and clicking on "Visualize +/// argument values". +/// ```rust +/// // for example, the first will expand to the second +/// enter_trace_span!(borrow_tracker::on_stack_pop, /* ... */) +/// enter_trace_span!("borrow_tracker", borrow_tracker = "on_stack_pop", /* ... */) +/// ``` +#[macro_export] +macro_rules! enter_trace_span { + ($name:ident :: $subname:ident $($tt:tt)*) => {{ + enter_trace_span!(stringify!($name), $name = %stringify!(subname) $($tt)*) + }}; + + ($($tt:tt)*) => { + $crate::MaybeEnteredTraceSpan { + #[cfg(feature = "tracing")] + _entered_span: tracing::info_span!($($tt)*).entered() + } + }; +} diff --git a/src/tools/miri/src/lib.rs b/src/tools/miri/src/lib.rs index c86e33e5185..a591d21071d 100644 --- a/src/tools/miri/src/lib.rs +++ b/src/tools/miri/src/lib.rs @@ -15,6 +15,7 @@ #![feature(unqualified_local_imports)] #![feature(derive_coerce_pointee)] #![feature(arbitrary_self_types)] +#![feature(iter_advance_by)] // Configure clippy and other lints #![allow( clippy::collapsible_else_if, @@ -75,16 +76,15 @@ mod alloc_addresses; mod borrow_tracker; mod clock; mod concurrency; +mod data_structures; mod diagnostics; mod eval; mod helpers; mod intrinsics; mod machine; mod math; -mod mono_hash_map; mod operator; mod provenance_gc; -mod range_map; mod shims; // Establish a "crate-wide prelude": we often import `crate::*`. @@ -97,10 +97,10 @@ pub use rustc_const_eval::interpret::{self, AllocMap, Provenance as _}; use rustc_middle::{bug, span_bug}; use tracing::{info, trace}; -//#[cfg(target_os = "linux")] -//pub mod native_lib { -// pub use crate::shims::{init_sv, register_retcode_sv}; -//} +#[cfg(target_os = "linux")] +pub mod native_lib { + pub use crate::shims::{init_sv, register_retcode_sv}; +} // Type aliases that set the provenance parameter. pub type Pointer = interpret::Pointer<Option<machine::Provenance>>; @@ -132,6 +132,8 @@ pub use crate::concurrency::thread::{ ThreadManager, TimeoutAnchor, TimeoutClock, UnblockKind, }; pub use crate::concurrency::{GenmcConfig, GenmcCtx}; +pub use crate::data_structures::dedup_range_map::DedupRangeMap; +pub use crate::data_structures::mono_hash_map::MonoHashMap; pub use crate::diagnostics::{ EvalContextExt as _, NonHaltingDiagnostic, TerminationInfo, report_error, }; @@ -139,24 +141,25 @@ pub use crate::eval::{ AlignmentCheck, BacktraceStyle, IsolatedOp, MiriConfig, MiriEntryFnType, RejectOpWith, ValidationMode, create_ecx, eval_entry, }; -pub use crate::helpers::{AccessKind, EvalContextExt as _, ToU64 as _, ToUsize as _}; +pub use crate::helpers::{ + AccessKind, EvalContextExt as _, MaybeEnteredTraceSpan, ToU64 as _, ToUsize as _, +}; pub use crate::intrinsics::EvalContextExt as _; pub use crate::machine::{ AllocExtra, DynMachineCallback, FrameExtra, MachineCallback, MemoryKind, MiriInterpCx, MiriInterpCxExt, MiriMachine, MiriMemoryKind, PrimitiveLayouts, Provenance, ProvenanceExtra, }; -pub use crate::mono_hash_map::MonoHashMap; pub use crate::operator::EvalContextExt as _; pub use crate::provenance_gc::{EvalContextExt as _, LiveAllocs, VisitProvenance, VisitWith}; -pub use crate::range_map::RangeMap; pub use crate::shims::EmulateItemResult; pub use crate::shims::env::{EnvVars, EvalContextExt as _}; pub use crate::shims::foreign_items::{DynSym, EvalContextExt as _}; pub use crate::shims::io_error::{EvalContextExt as _, IoError, LibcError}; pub use crate::shims::os_str::EvalContextExt as _; -pub use crate::shims::panic::{CatchUnwindData, EvalContextExt as _}; +pub use crate::shims::panic::EvalContextExt as _; pub use crate::shims::time::EvalContextExt as _; pub use crate::shims::tls::TlsData; +pub use crate::shims::unwind::{CatchUnwindData, EvalContextExt as _}; /// Insert rustc arguments at the beginning of the argument list that Miri wants to be /// set per default, for maximal validation power. diff --git a/src/tools/miri/src/machine.rs b/src/tools/miri/src/machine.rs index 35399dbf4cb..f309e34c75b 100644 --- a/src/tools/miri/src/machine.rs +++ b/src/tools/miri/src/machine.rs @@ -1086,7 +1086,7 @@ impl<'tcx> Machine<'tcx> for MiriMachine<'tcx> { ecx: &MiriInterpCx<'tcx>, instance: ty::Instance<'tcx>, ) -> InterpResult<'tcx> { - let attrs = ecx.tcx.codegen_fn_attrs(instance.def_id()); + let attrs = ecx.tcx.codegen_instance_attrs(instance.def); if attrs .target_features .iter() @@ -1790,7 +1790,7 @@ impl<'tcx> Machine<'tcx> for MiriMachine<'tcx> { ecx.tcx.sess.opts.unstable_opts.cross_crate_inline_threshold, InliningThreshold::Always ) || !matches!( - ecx.tcx.codegen_fn_attrs(instance.def_id()).inline, + ecx.tcx.codegen_instance_attrs(instance.def).inline, InlineAttr::Never ); !is_generic && !can_be_inlined @@ -1828,8 +1828,11 @@ impl<'tcx> Machine<'tcx> for MiriMachine<'tcx> { fn enter_trace_span(span: impl FnOnce() -> tracing::Span) -> impl EnteredTraceSpan { #[cfg(feature = "tracing")] - { span().entered() } + { + span().entered() + } #[cfg(not(feature = "tracing"))] + #[expect(clippy::unused_unit)] { let _ = span; // so we avoid the "unused variable" warning () diff --git a/src/tools/miri/src/shims/global_ctor.rs b/src/tools/miri/src/shims/global_ctor.rs new file mode 100644 index 00000000000..c56251bbe63 --- /dev/null +++ b/src/tools/miri/src/shims/global_ctor.rs @@ -0,0 +1,98 @@ +//! Implement global constructors. + +use std::task::Poll; + +use rustc_abi::ExternAbi; +use rustc_target::spec::BinaryFormat; + +use crate::*; + +#[derive(Debug, Default)] +pub struct GlobalCtorState<'tcx>(GlobalCtorStatePriv<'tcx>); + +#[derive(Debug, Default)] +enum GlobalCtorStatePriv<'tcx> { + #[default] + Init, + /// The list of constructor functions that we still have to call. + Ctors(Vec<ImmTy<'tcx>>), + Done, +} + +impl<'tcx> GlobalCtorState<'tcx> { + pub fn on_stack_empty( + &mut self, + this: &mut MiriInterpCx<'tcx>, + ) -> InterpResult<'tcx, Poll<()>> { + use GlobalCtorStatePriv::*; + let new_state = 'new_state: { + match &mut self.0 { + Init => { + let this = this.eval_context_mut(); + + // Lookup constructors from the relevant magic link section. + let ctors = match this.tcx.sess.target.binary_format { + // Read the CRT library section on Windows. + BinaryFormat::Coff => + this.lookup_link_section(|section| section == ".CRT$XCU")?, + + // Read the `__mod_init_func` section on macOS. + BinaryFormat::MachO => + this.lookup_link_section(|section| { + let mut parts = section.splitn(3, ','); + let (segment_name, section_name, section_type) = + (parts.next(), parts.next(), parts.next()); + + segment_name == Some("__DATA") + && section_name == Some("__mod_init_func") + // The `mod_init_funcs` directive ensures that the + // `S_MOD_INIT_FUNC_POINTERS` flag is set on the section. LLVM + // adds this automatically so we currently do not require it. + // FIXME: is this guaranteed LLVM behavior? If not, we shouldn't + // implicitly add it here. Also see + // <https://github.com/rust-lang/miri/pull/4459#discussion_r2200115629>. + && matches!(section_type, None | Some("mod_init_funcs")) + })?, + + // Read the standard `.init_array` section on platforms that use ELF, or WASM, + // which supports the same linker directive. + // FIXME: Add support for `.init_array.N` and `.ctors`? + BinaryFormat::Elf | BinaryFormat::Wasm => + this.lookup_link_section(|section| section == ".init_array")?, + + // Other platforms have no global ctor support. + _ => break 'new_state Done, + }; + + break 'new_state Ctors(ctors); + } + Ctors(ctors) => { + if let Some(ctor) = ctors.pop() { + let this = this.eval_context_mut(); + + let ctor = ctor.to_scalar().to_pointer(this)?; + let thread_callback = this.get_ptr_fn(ctor)?.as_instance()?; + + // The signature of this function is `unsafe extern "C" fn()`. + this.call_function( + thread_callback, + ExternAbi::C { unwind: false }, + &[], + None, + ReturnContinuation::Stop { cleanup: true }, + )?; + + return interp_ok(Poll::Pending); // we stay in this state (but `ctors` got shorter) + } + + // No more constructors to run. + break 'new_state Done; + } + Done => return interp_ok(Poll::Ready(())), + } + }; + + self.0 = new_state; + interp_ok(Poll::Pending) + } +} diff --git a/src/tools/miri/src/shims/mod.rs b/src/tools/miri/src/shims/mod.rs index f09fc546b3e..75540f6f150 100644 --- a/src/tools/miri/src/shims/mod.rs +++ b/src/tools/miri/src/shims/mod.rs @@ -14,15 +14,17 @@ mod x86; pub mod env; pub mod extern_static; pub mod foreign_items; +pub mod global_ctor; pub mod io_error; pub mod os_str; pub mod panic; pub mod time; pub mod tls; +pub mod unwind; pub use self::files::FdTable; -//#[cfg(target_os = "linux")] -//pub use self::native_lib::trace::{init_sv, register_retcode_sv}; +#[cfg(target_os = "linux")] +pub use self::native_lib::trace::{init_sv, register_retcode_sv}; pub use self::unix::{DirTable, EpollInterestTable}; /// What needs to be done after emulating an item (a shim or an intrinsic) is done. diff --git a/src/tools/miri/src/shims/native_lib/mod.rs b/src/tools/miri/src/shims/native_lib/mod.rs index 02c3bde036d..fb7b1df41a4 100644 --- a/src/tools/miri/src/shims/native_lib/mod.rs +++ b/src/tools/miri/src/shims/native_lib/mod.rs @@ -1,9 +1,5 @@ //! Implements calling functions from a native library. -// FIXME: disabled since it fails to build on many targets. -//#[cfg(target_os = "linux")] -//pub mod trace; - use std::ops::Deref; use libffi::high::call as ffi; @@ -13,14 +9,68 @@ use rustc_middle::mir::interpret::Pointer; use rustc_middle::ty::{self as ty, IntTy, UintTy}; use rustc_span::Symbol; -//#[cfg(target_os = "linux")] -//use self::trace::Supervisor; +#[cfg_attr( + not(all( + target_os = "linux", + target_env = "gnu", + any(target_arch = "x86", target_arch = "x86_64") + )), + path = "trace/stub.rs" +)] +pub mod trace; + use crate::*; -//#[cfg(target_os = "linux")] -//type CallResult<'tcx> = InterpResult<'tcx, (ImmTy<'tcx>, Option<self::trace::messages::MemEvents>)>; -//#[cfg(not(target_os = "linux"))] -type CallResult<'tcx> = InterpResult<'tcx, (ImmTy<'tcx>, Option<!>)>; +/// The final results of an FFI trace, containing every relevant event detected +/// by the tracer. +#[allow(dead_code)] +#[cfg_attr(target_os = "linux", derive(serde::Serialize, serde::Deserialize))] +#[derive(Debug)] +pub struct MemEvents { + /// An list of memory accesses that occurred, in the order they occurred in. + pub acc_events: Vec<AccessEvent>, +} + +/// A single memory access. +#[allow(dead_code)] +#[cfg_attr(target_os = "linux", derive(serde::Serialize, serde::Deserialize))] +#[derive(Clone, Debug)] +pub enum AccessEvent { + /// A read occurred on this memory range. + Read(AccessRange), + /// A write may have occurred on this memory range. + /// Some instructions *may* write memory without *always* doing that, + /// so this can be an over-approximation. + /// The range info, however, is reliable if the access did happen. + /// If the second field is true, the access definitely happened. + Write(AccessRange, bool), +} + +impl AccessEvent { + fn get_range(&self) -> AccessRange { + match self { + AccessEvent::Read(access_range) => access_range.clone(), + AccessEvent::Write(access_range, _) => access_range.clone(), + } + } +} + +/// The memory touched by a given access. +#[allow(dead_code)] +#[cfg_attr(target_os = "linux", derive(serde::Serialize, serde::Deserialize))] +#[derive(Clone, Debug)] +pub struct AccessRange { + /// The base address in memory where an access occurred. + pub addr: usize, + /// The number of bytes affected from the base. + pub size: usize, +} + +impl AccessRange { + fn end(&self) -> usize { + self.addr.strict_add(self.size) + } +} impl<'tcx> EvalContextExtPriv<'tcx> for crate::MiriInterpCx<'tcx> {} trait EvalContextExtPriv<'tcx>: crate::MiriInterpCxExt<'tcx> { @@ -31,18 +81,17 @@ trait EvalContextExtPriv<'tcx>: crate::MiriInterpCxExt<'tcx> { dest: &MPlaceTy<'tcx>, ptr: CodePtr, libffi_args: Vec<libffi::high::Arg<'a>>, - ) -> CallResult<'tcx> { + ) -> InterpResult<'tcx, (crate::ImmTy<'tcx>, Option<MemEvents>)> { let this = self.eval_context_mut(); - //#[cfg(target_os = "linux")] - //let alloc = this.machine.allocator.as_ref().unwrap(); - - // SAFETY: We don't touch the machine memory past this point. - //#[cfg(target_os = "linux")] - //let (guard, stack_ptr) = unsafe { Supervisor::start_ffi(alloc) }; + #[cfg(target_os = "linux")] + let alloc = this.machine.allocator.as_ref().unwrap(); + #[cfg(not(target_os = "linux"))] + // Placeholder value. + let alloc = (); - // Call the function (`ptr`) with arguments `libffi_args`, and obtain the return value - // as the specified primitive integer type - let res = 'res: { + trace::Supervisor::do_ffi(alloc, || { + // Call the function (`ptr`) with arguments `libffi_args`, and obtain the return value + // as the specified primitive integer type let scalar = match dest.layout.ty.kind() { // ints ty::Int(IntTy::I8) => { @@ -93,7 +142,7 @@ trait EvalContextExtPriv<'tcx>: crate::MiriInterpCxExt<'tcx> { // have the output_type `Tuple([])`. ty::Tuple(t_list) if (*t_list).deref().is_empty() => { unsafe { ffi::call::<()>(ptr, libffi_args.as_slice()) }; - break 'res interp_ok(ImmTy::uninit(dest.layout)); + return interp_ok(ImmTy::uninit(dest.layout)); } ty::RawPtr(..) => { let x = unsafe { ffi::call::<*const ()>(ptr, libffi_args.as_slice()) }; @@ -101,23 +150,14 @@ trait EvalContextExtPriv<'tcx>: crate::MiriInterpCxExt<'tcx> { Scalar::from_pointer(ptr, this) } _ => - break 'res Err(err_unsup_format!( + return Err(err_unsup_format!( "unsupported return type for native call: {:?}", link_name )) .into(), }; interp_ok(ImmTy::from_scalar(scalar, dest.layout)) - }; - - // SAFETY: We got the guard and stack pointer from start_ffi, and - // the allocator is the same - //#[cfg(target_os = "linux")] - //let events = unsafe { Supervisor::end_ffi(alloc, guard, stack_ptr) }; - //#[cfg(not(target_os = "linux"))] - let events = None; - - interp_ok((res?, events)) + }) } /// Get the pointer to the function of the specified name in the shared object file, @@ -169,6 +209,73 @@ trait EvalContextExtPriv<'tcx>: crate::MiriInterpCxExt<'tcx> { } None } + + /// Applies the `events` to Miri's internal state. The event vector must be + /// ordered sequentially by when the accesses happened, and the sizes are + /// assumed to be exact. + fn tracing_apply_accesses(&mut self, events: MemEvents) -> InterpResult<'tcx> { + let this = self.eval_context_mut(); + + for evt in events.acc_events { + let evt_rg = evt.get_range(); + // LLVM at least permits vectorising accesses to adjacent allocations, + // so we cannot assume 1 access = 1 allocation. :( + let mut rg = evt_rg.addr..evt_rg.end(); + while let Some(curr) = rg.next() { + let Some(alloc_id) = this.alloc_id_from_addr( + curr.to_u64(), + rg.len().try_into().unwrap(), + /* only_exposed_allocations */ true, + ) else { + throw_ub_format!("Foreign code did an out-of-bounds access!") + }; + let alloc = this.get_alloc_raw(alloc_id)?; + // The logical and physical address of the allocation coincide, so we can use + // this instead of `addr_from_alloc_id`. + let alloc_addr = alloc.get_bytes_unchecked_raw().addr(); + + // Determine the range inside the allocation that this access covers. This range is + // in terms of offsets from the start of `alloc`. The start of the overlap range + // will be `curr`; the end will be the minimum of the end of the allocation and the + // end of the access' range. + let overlap = curr.strict_sub(alloc_addr) + ..std::cmp::min(alloc.len(), rg.end.strict_sub(alloc_addr)); + // Skip forward however many bytes of the access are contained in the current + // allocation, subtracting 1 since the overlap range includes the current addr + // that was already popped off of the range. + rg.advance_by(overlap.len().strict_sub(1)).unwrap(); + + match evt { + AccessEvent::Read(_) => { + // FIXME: ProvenanceMap should have something like get_range(). + let p_map = alloc.provenance(); + for idx in overlap { + // If a provenance was read by the foreign code, expose it. + if let Some(prov) = p_map.get(Size::from_bytes(idx), this) { + this.expose_provenance(prov)?; + } + } + } + AccessEvent::Write(_, certain) => { + // Sometimes we aren't certain if a write happened, in which case we + // only initialise that data if the allocation is mutable. + if certain || alloc.mutability.is_mut() { + let (alloc, cx) = this.get_alloc_raw_mut(alloc_id)?; + alloc.process_native_write( + &cx.tcx, + Some(AllocRange { + start: Size::from_bytes(overlap.start), + size: Size::from_bytes(overlap.len()), + }), + ) + } + } + } + } + } + + interp_ok(()) + } } impl<'tcx> EvalContextExt<'tcx> for crate::MiriInterpCx<'tcx> {} @@ -194,6 +301,9 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { } }; + // Do we have ptrace? + let tracing = trace::Supervisor::is_enabled(); + // Get the function arguments, and convert them to `libffi`-compatible form. let mut libffi_args = Vec::<CArg>::with_capacity(args.len()); for arg in args.iter() { @@ -213,12 +323,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { // The first time this happens, print a warning. if !this.machine.native_call_mem_warned.replace(true) { // Newly set, so first time we get here. - this.emit_diagnostic(NonHaltingDiagnostic::NativeCallSharedMem { - //#[cfg(target_os = "linux")] - //tracing: self::trace::Supervisor::is_enabled(), - //#[cfg(not(target_os = "linux"))] - tracing: false, - }); + this.emit_diagnostic(NonHaltingDiagnostic::NativeCallSharedMem { tracing }); } this.expose_provenance(prov)?; @@ -245,15 +350,23 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { // be read by FFI. The `black_box` is defensive programming as LLVM likes // to (incorrectly) optimize away ptr2int casts whose result is unused. std::hint::black_box(alloc.get_bytes_unchecked_raw().expose_provenance()); - // Expose all provenances in this allocation, since the native code can do $whatever. - for prov in alloc.provenance().provenances() { - this.expose_provenance(prov)?; + + if !tracing { + // Expose all provenances in this allocation, since the native code can do $whatever. + // Can be skipped when tracing; in that case we'll expose just the actually-read parts later. + for prov in alloc.provenance().provenances() { + this.expose_provenance(prov)?; + } } // Prepare for possible write from native code if mutable. if info.mutbl.is_mut() { let (alloc, cx) = this.get_alloc_raw_mut(alloc_id)?; - alloc.process_native_write(&cx.tcx, None); + // These writes could initialize everything and wreck havoc with the pointers. + // We can skip that when tracing; in that case we'll later do that only for the memory that got actually written. + if !tracing { + alloc.process_native_write(&cx.tcx, None); + } // Also expose *mutable* provenance for the interpreter-level allocation. std::hint::black_box(alloc.get_bytes_unchecked_raw_mut().expose_provenance()); } @@ -265,10 +378,8 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { let (ret, maybe_memevents) = this.call_native_with_args(link_name, dest, code_ptr, libffi_args)?; - if cfg!(target_os = "linux") - && let Some(events) = maybe_memevents - { - trace!("Registered FFI events:\n{events:#0x?}"); + if tracing { + this.tracing_apply_accesses(maybe_memevents.unwrap())?; } this.write_immediate(*ret, dest)?; diff --git a/src/tools/miri/src/shims/native_lib/trace/child.rs b/src/tools/miri/src/shims/native_lib/trace/child.rs index 4961e875c77..de26cb0fe55 100644 --- a/src/tools/miri/src/shims/native_lib/trace/child.rs +++ b/src/tools/miri/src/shims/native_lib/trace/child.rs @@ -4,12 +4,22 @@ use std::rc::Rc; use ipc_channel::ipc; use nix::sys::{ptrace, signal}; use nix::unistd; +use rustc_const_eval::interpret::InterpResult; use super::CALLBACK_STACK_SIZE; -use super::messages::{Confirmation, MemEvents, StartFfiInfo, TraceRequest}; +use super::messages::{Confirmation, StartFfiInfo, TraceRequest}; use super::parent::{ChildListener, sv_loop}; use crate::alloc::isolated_alloc::IsolatedAlloc; +use crate::shims::native_lib::MemEvents; +/// A handle to the single, shared supervisor process across all `MiriMachine`s. +/// Since it would be very difficult to trace multiple FFI calls in parallel, we +/// need to ensure that either (a) only one `MiriMachine` is performing an FFI call +/// at any given time, or (b) there are distinct supervisor and child processes for +/// each machine. The former was chosen here. +/// +/// This should only contain a `None` if the supervisor has not (yet) been initialised; +/// otherwise, if `init_sv` was called and did not error, this will always be nonempty. static SUPERVISOR: std::sync::Mutex<Option<Supervisor>> = std::sync::Mutex::new(None); /// The main means of communication between the child and parent process, @@ -34,32 +44,23 @@ impl Supervisor { SUPERVISOR.lock().unwrap().is_some() } - /// Begins preparations for doing an FFI call. This should be called at - /// the last possible moment before entering said call. `alloc` points to - /// the allocator which handed out the memory used for this machine. - /// + /// Performs an arbitrary FFI call, enabling tracing from the supervisor. /// As this locks the supervisor via a mutex, no other threads may enter FFI - /// until this one returns and its guard is dropped via `end_ffi`. The - /// pointer returned should be passed to `end_ffi` to avoid a memory leak. - /// - /// SAFETY: The resulting guard must be dropped *via `end_ffi`* immediately - /// after the desired call has concluded. - pub unsafe fn start_ffi( + /// until this function returns. + pub fn do_ffi<'tcx>( alloc: &Rc<RefCell<IsolatedAlloc>>, - ) -> (std::sync::MutexGuard<'static, Option<Supervisor>>, Option<*mut [u8; CALLBACK_STACK_SIZE]>) - { + f: impl FnOnce() -> InterpResult<'tcx, crate::ImmTy<'tcx>>, + ) -> InterpResult<'tcx, (crate::ImmTy<'tcx>, Option<MemEvents>)> { let mut sv_guard = SUPERVISOR.lock().unwrap(); - // If the supervisor is not initialised for whatever reason, fast-fail. - // This might be desired behaviour, as even on platforms where ptracing - // is not implemented it enables us to enforce that only one FFI call + // If the supervisor is not initialised for whatever reason, fast-return. + // As a side-effect, even on platforms where ptracing + // is not implemented, we enforce that only one FFI call // happens at a time. - let Some(sv) = sv_guard.take() else { - return (sv_guard, None); - }; + let Some(sv) = sv_guard.as_mut() else { return f().map(|v| (v, None)) }; // Get pointers to all the pages the supervisor must allow accesses in // and prepare the callback stack. - let page_ptrs = alloc.borrow().pages(); + let page_ptrs = alloc.borrow().pages().collect(); let raw_stack_ptr: *mut [u8; CALLBACK_STACK_SIZE] = Box::leak(Box::new([0u8; CALLBACK_STACK_SIZE])).as_mut_ptr().cast(); let stack_ptr = raw_stack_ptr.expose_provenance(); @@ -68,9 +69,9 @@ impl Supervisor { // SAFETY: We do not access machine memory past this point until the // supervisor is ready to allow it. unsafe { - if alloc.borrow_mut().prepare_ffi().is_err() { + if alloc.borrow_mut().start_ffi().is_err() { // Don't mess up unwinding by maybe leaving the memory partly protected - alloc.borrow_mut().unprep_ffi(); + alloc.borrow_mut().end_ffi(); panic!("Cannot protect memory for FFI call!"); } } @@ -82,27 +83,13 @@ impl Supervisor { // enforce an ordering for these events. sv.message_tx.send(TraceRequest::StartFfi(start_info)).unwrap(); sv.confirm_rx.recv().unwrap(); - *sv_guard = Some(sv); // We need to be stopped for the supervisor to be able to make certain // modifications to our memory - simply waiting on the recv() doesn't // count. signal::raise(signal::SIGSTOP).unwrap(); - (sv_guard, Some(raw_stack_ptr)) - } - /// Undoes FFI-related preparations, allowing Miri to continue as normal, then - /// gets the memory accesses and changes performed during the FFI call. Note - /// that this may include some spurious accesses done by `libffi` itself in - /// the process of executing the function call. - /// - /// SAFETY: The `sv_guard` and `raw_stack_ptr` passed must be the same ones - /// received by a prior call to `start_ffi`, and the allocator must be the - /// one passed to it also. - pub unsafe fn end_ffi( - alloc: &Rc<RefCell<IsolatedAlloc>>, - mut sv_guard: std::sync::MutexGuard<'static, Option<Supervisor>>, - raw_stack_ptr: Option<*mut [u8; CALLBACK_STACK_SIZE]>, - ) -> Option<MemEvents> { + let res = f(); + // We can't use IPC channels here to signal that FFI mode has ended, // since they might allocate memory which could get us stuck in a SIGTRAP // with no easy way out! While this could be worked around, it is much @@ -113,42 +100,40 @@ impl Supervisor { signal::raise(signal::SIGUSR1).unwrap(); // This is safe! It just sets memory to normal expected permissions. - alloc.borrow_mut().unprep_ffi(); + alloc.borrow_mut().end_ffi(); - // If this is `None`, then `raw_stack_ptr` is None and does not need to - // be deallocated (and there's no need to worry about the guard, since - // it contains nothing). - let sv = sv_guard.take()?; // SAFETY: Caller upholds that this pointer was allocated as a box with // this type. unsafe { - drop(Box::from_raw(raw_stack_ptr.unwrap())); + drop(Box::from_raw(raw_stack_ptr)); } // On the off-chance something really weird happens, don't block forever. - let ret = sv + let events = sv .event_rx .try_recv_timeout(std::time::Duration::from_secs(5)) .map_err(|e| { match e { ipc::TryRecvError::IpcError(_) => (), ipc::TryRecvError::Empty => - eprintln!("Waiting for accesses from supervisor timed out!"), + panic!("Waiting for accesses from supervisor timed out!"), } }) .ok(); - // Do *not* leave the supervisor empty, or else we might get another fork... - *sv_guard = Some(sv); - ret + + res.map(|v| (v, events)) } } /// Initialises the supervisor process. If this function errors, then the /// supervisor process could not be created successfully; else, the caller -/// is now the child process and can communicate via `start_ffi`/`end_ffi`, -/// receiving back events through `get_events`. +/// is now the child process and can communicate via `do_ffi`, receiving back +/// events at the end. /// /// # Safety -/// The invariants for `fork()` must be upheld by the caller. +/// The invariants for `fork()` must be upheld by the caller, namely either: +/// - Other threads do not exist, or; +/// - If they do exist, either those threads or the resulting child process +/// only ever act in [async-signal-safe](https://www.man7.org/linux/man-pages/man7/signal-safety.7.html) ways. pub unsafe fn init_sv() -> Result<(), SvInitError> { // FIXME: Much of this could be reimplemented via the mitosis crate if we upstream the // relevant missing bits. @@ -191,8 +176,7 @@ pub unsafe fn init_sv() -> Result<(), SvInitError> { // The child process is free to unwind, so we won't to avoid doubly freeing // system resources. let init = std::panic::catch_unwind(|| { - let listener = - ChildListener { message_rx, attached: false, override_retcode: None }; + let listener = ChildListener::new(message_rx, confirm_tx.clone()); // Trace as many things as possible, to be able to handle them as needed. let options = ptrace::Options::PTRACE_O_TRACESYSGOOD | ptrace::Options::PTRACE_O_TRACECLONE @@ -218,7 +202,9 @@ pub unsafe fn init_sv() -> Result<(), SvInitError> { // The "Ok" case means that we couldn't ptrace. Ok(e) => return Err(e), Err(p) => { - eprintln!("Supervisor process panicked!\n{p:?}"); + eprintln!( + "Supervisor process panicked!\n{p:?}\n\nTry running again without using the native-lib tracer." + ); std::process::exit(1); } } @@ -239,13 +225,11 @@ pub unsafe fn init_sv() -> Result<(), SvInitError> { } /// Instruct the supervisor process to return a particular code. Useful if for -/// whatever reason this code fails to be intercepted normally. In the case of -/// `abort_if_errors()` used in `bin/miri.rs`, the return code is erroneously -/// given as a 0 if this is not used. +/// whatever reason this code fails to be intercepted normally. pub fn register_retcode_sv(code: i32) { let mut sv_guard = SUPERVISOR.lock().unwrap(); - if let Some(sv) = sv_guard.take() { + if let Some(sv) = sv_guard.as_mut() { sv.message_tx.send(TraceRequest::OverrideRetcode(code)).unwrap(); - *sv_guard = Some(sv); + sv.confirm_rx.recv().unwrap(); } } diff --git a/src/tools/miri/src/shims/native_lib/trace/messages.rs b/src/tools/miri/src/shims/native_lib/trace/messages.rs index 8a83dab5c09..1f9df556b57 100644 --- a/src/tools/miri/src/shims/native_lib/trace/messages.rs +++ b/src/tools/miri/src/shims/native_lib/trace/messages.rs @@ -1,25 +1,28 @@ //! Houses the types that are directly sent across the IPC channels. //! -//! The overall structure of a traced FFI call, from the child process's POV, is -//! as follows: +//! When forking to initialise the supervisor during `init_sv`, the child raises +//! a `SIGSTOP`; if the parent successfully ptraces the child, it will allow it +//! to resume. Else, the child will be killed by the parent. +//! +//! After initialisation is done, the overall structure of a traced FFI call from +//! the child process's POV is as follows: //! ``` //! message_tx.send(TraceRequest::StartFfi); -//! confirm_rx.recv(); +//! confirm_rx.recv(); // receives a `Confirmation` //! raise(SIGSTOP); //! /* do ffi call */ //! raise(SIGUSR1); // morally equivalent to some kind of "TraceRequest::EndFfi" -//! let events = event_rx.recv(); +//! let events = event_rx.recv(); // receives a `MemEvents` //! ``` //! `TraceRequest::OverrideRetcode` can be sent at any point in the above, including -//! before or after all of them. +//! before or after all of them. `confirm_rx.recv()` is to be called after, to ensure +//! that the child does not exit before the supervisor has registered the return code. //! //! NB: sending these events out of order, skipping steps, etc. will result in //! unspecified behaviour from the supervisor process, so use the abstractions -//! in `super::child` (namely `start_ffi()` and `end_ffi()`) to handle this. It is +//! in `super::child` (namely `do_ffi()`) to handle this. It is //! trivially easy to cause a deadlock or crash by messing this up! -use std::ops::Range; - /// An IPC request sent by the child process to the parent. /// /// The sender for this channel should live on the child process. @@ -34,6 +37,8 @@ pub enum TraceRequest { StartFfi(StartFfiInfo), /// Manually overrides the code that the supervisor will return upon exiting. /// Once set, it is permanent. This can be called again to change the value. + /// + /// After sending this, the child must wait to receive a `Confirmation`. OverrideRetcode(i32), } @@ -41,7 +46,7 @@ pub enum TraceRequest { #[derive(serde::Serialize, serde::Deserialize, Debug, Clone)] pub struct StartFfiInfo { /// A vector of page addresses. These should have been automatically obtained - /// with `IsolatedAlloc::pages` and prepared with `IsolatedAlloc::prepare_ffi`. + /// with `IsolatedAlloc::pages` and prepared with `IsolatedAlloc::start_ffi`. pub page_ptrs: Vec<usize>, /// The address of an allocation that can serve as a temporary stack. /// This should be a leaked `Box<[u8; CALLBACK_STACK_SIZE]>` cast to an int. @@ -54,27 +59,3 @@ pub struct StartFfiInfo { /// The sender for this channel should live on the parent process. #[derive(serde::Serialize, serde::Deserialize, Debug)] pub struct Confirmation; - -/// The final results of an FFI trace, containing every relevant event detected -/// by the tracer. Sent by the supervisor after receiving a `SIGUSR1` signal. -/// -/// The sender for this channel should live on the parent process. -#[derive(serde::Serialize, serde::Deserialize, Debug)] -pub struct MemEvents { - /// An ordered list of memory accesses that occurred. These should be assumed - /// to be overcautious; that is, if the size of an access is uncertain it is - /// pessimistically rounded up, and if the type (read/write/both) is uncertain - /// it is reported as whatever would be safest to assume; i.e. a read + maybe-write - /// becomes a read + write, etc. - pub acc_events: Vec<AccessEvent>, -} - -/// A single memory access, conservatively overestimated -/// in case of ambiguity. -#[derive(serde::Serialize, serde::Deserialize, Debug)] -pub enum AccessEvent { - /// A read may have occurred on no more than the specified address range. - Read(Range<usize>), - /// A write may have occurred on no more than the specified address range. - Write(Range<usize>), -} diff --git a/src/tools/miri/src/shims/native_lib/trace/mod.rs b/src/tools/miri/src/shims/native_lib/trace/mod.rs index 174b06b3ac5..c8abacfb5e2 100644 --- a/src/tools/miri/src/shims/native_lib/trace/mod.rs +++ b/src/tools/miri/src/shims/native_lib/trace/mod.rs @@ -5,4 +5,6 @@ mod parent; pub use self::child::{Supervisor, init_sv, register_retcode_sv}; /// The size of the temporary stack we use for callbacks that the server executes in the client. +/// This should be big enough that `mempr_on` and `mempr_off` can safely be jumped into with the +/// stack pointer pointing to a "stack" of this size without overflowing it. const CALLBACK_STACK_SIZE: usize = 1024; diff --git a/src/tools/miri/src/shims/native_lib/trace/parent.rs b/src/tools/miri/src/shims/native_lib/trace/parent.rs index dfb0b35da69..83f6c7a13fc 100644 --- a/src/tools/miri/src/shims/native_lib/trace/parent.rs +++ b/src/tools/miri/src/shims/native_lib/trace/parent.rs @@ -5,26 +5,17 @@ use nix::sys::{ptrace, signal, wait}; use nix::unistd; use super::CALLBACK_STACK_SIZE; -use super::messages::{AccessEvent, Confirmation, MemEvents, StartFfiInfo, TraceRequest}; +use super::messages::{Confirmation, StartFfiInfo, TraceRequest}; +use crate::shims::native_lib::{AccessEvent, AccessRange, MemEvents}; /// The flags to use when calling `waitid()`. -/// Since bitwise or on the nix version of these flags is implemented as a trait, -/// this cannot be const directly so we do it this way. const WAIT_FLAGS: wait::WaitPidFlag = - wait::WaitPidFlag::from_bits_truncate(libc::WUNTRACED | libc::WEXITED); - -/// Arch-specific maximum size a single access might perform. x86 value is set -/// assuming nothing bigger than AVX-512 is available. -#[cfg(any(target_arch = "x86", target_arch = "x86_64"))] -const ARCH_MAX_ACCESS_SIZE: usize = 64; -/// The largest arm64 simd instruction operates on 16 bytes. -#[cfg(any(target_arch = "arm", target_arch = "aarch64"))] -const ARCH_MAX_ACCESS_SIZE: usize = 16; + wait::WaitPidFlag::WUNTRACED.union(wait::WaitPidFlag::WEXITED); /// The default word size on a given platform, in bytes. -#[cfg(any(target_arch = "x86", target_arch = "arm"))] +#[cfg(target_arch = "x86")] const ARCH_WORD_SIZE: usize = 4; -#[cfg(any(target_arch = "x86_64", target_arch = "aarch64"))] +#[cfg(target_arch = "x86_64")] const ARCH_WORD_SIZE: usize = 8; /// The address of the page set to be edited, initialised to a sentinel null @@ -53,39 +44,25 @@ trait ArchIndependentRegs { // It's fine / desirable behaviour for values to wrap here, we care about just // preserving the bit pattern. #[cfg(target_arch = "x86_64")] -#[expect(clippy::as_conversions)] #[rustfmt::skip] impl ArchIndependentRegs for libc::user_regs_struct { #[inline] - fn ip(&self) -> usize { self.rip as _ } + fn ip(&self) -> usize { self.rip.try_into().unwrap() } #[inline] - fn set_ip(&mut self, ip: usize) { self.rip = ip as _ } + fn set_ip(&mut self, ip: usize) { self.rip = ip.try_into().unwrap() } #[inline] - fn set_sp(&mut self, sp: usize) { self.rsp = sp as _ } + fn set_sp(&mut self, sp: usize) { self.rsp = sp.try_into().unwrap() } } #[cfg(target_arch = "x86")] -#[expect(clippy::as_conversions)] #[rustfmt::skip] impl ArchIndependentRegs for libc::user_regs_struct { #[inline] - fn ip(&self) -> usize { self.eip as _ } + fn ip(&self) -> usize { self.eip.cast_unsigned().try_into().unwrap() } #[inline] - fn set_ip(&mut self, ip: usize) { self.eip = ip as _ } + fn set_ip(&mut self, ip: usize) { self.eip = ip.cast_signed().try_into().unwrap() } #[inline] - fn set_sp(&mut self, sp: usize) { self.esp = sp as _ } -} - -#[cfg(target_arch = "aarch64")] -#[expect(clippy::as_conversions)] -#[rustfmt::skip] -impl ArchIndependentRegs for libc::user_regs_struct { - #[inline] - fn ip(&self) -> usize { self.pc as _ } - #[inline] - fn set_ip(&mut self, ip: usize) { self.pc = ip as _ } - #[inline] - fn set_sp(&mut self, sp: usize) { self.sp = sp as _ } + fn set_sp(&mut self, sp: usize) { self.esp = sp.cast_signed().try_into().unwrap() } } /// A unified event representing something happening on the child process. Wraps @@ -109,11 +86,24 @@ pub enum ExecEvent { /// A listener for the FFI start info channel along with relevant state. pub struct ChildListener { /// The matching channel for the child's `Supervisor` struct. - pub message_rx: ipc::IpcReceiver<TraceRequest>, + message_rx: ipc::IpcReceiver<TraceRequest>, + /// ... + confirm_tx: ipc::IpcSender<Confirmation>, /// Whether an FFI call is currently ongoing. - pub attached: bool, + attached: bool, /// If `Some`, overrides the return code with the given value. - pub override_retcode: Option<i32>, + override_retcode: Option<i32>, + /// Last code obtained from a child exiting. + last_code: Option<i32>, +} + +impl ChildListener { + pub fn new( + message_rx: ipc::IpcReceiver<TraceRequest>, + confirm_tx: ipc::IpcSender<Confirmation>, + ) -> Self { + Self { message_rx, confirm_tx, attached: false, override_retcode: None, last_code: None } + } } impl Iterator for ChildListener { @@ -133,16 +123,10 @@ impl Iterator for ChildListener { Ok(stat) => match stat { // Child exited normally with a specific code set. - wait::WaitStatus::Exited(_, code) => { - let code = self.override_retcode.unwrap_or(code); - return Some(ExecEvent::Died(Some(code))); - } + wait::WaitStatus::Exited(_, code) => self.last_code = Some(code), // Child was killed by a signal, without giving a code. - wait::WaitStatus::Signaled(_, _, _) => - return Some(ExecEvent::Died(self.override_retcode)), - // Child entered a syscall. Since we're always technically - // tracing, only pass this along if we're actively - // monitoring the child. + wait::WaitStatus::Signaled(_, _, _) => self.last_code = None, + // Child entered or exited a syscall. wait::WaitStatus::PtraceSyscall(pid) => if self.attached { return Some(ExecEvent::Syscall(pid)); @@ -179,10 +163,8 @@ impl Iterator for ChildListener { }, _ => (), }, - // This case should only trigger if all children died and we - // somehow missed that, but it's best we not allow any room - // for deadlocks. - Err(_) => return Some(ExecEvent::Died(None)), + // This case should only trigger when all children died. + Err(_) => return Some(ExecEvent::Died(self.override_retcode.or(self.last_code))), } // Similarly, do a non-blocking poll of the IPC channel. @@ -196,7 +178,10 @@ impl Iterator for ChildListener { self.attached = true; return Some(ExecEvent::Start(info)); }, - TraceRequest::OverrideRetcode(code) => self.override_retcode = Some(code), + TraceRequest::OverrideRetcode(code) => { + self.override_retcode = Some(code); + self.confirm_tx.send(Confirmation).unwrap(); + } } } @@ -211,6 +196,12 @@ impl Iterator for ChildListener { #[derive(Debug)] pub struct ExecEnd(pub Option<i32>); +/// Whether to call `ptrace::cont()` immediately. Used exclusively by `wait_for_signal`. +enum InitialCont { + Yes, + No, +} + /// This is the main loop of the supervisor process. It runs in a separate /// process from the rest of Miri (but because we fork, addresses for anything /// created before the fork - like statics - are the same). @@ -239,12 +230,12 @@ pub fn sv_loop( let mut curr_pid = init_pid; // There's an initial sigstop we need to deal with. - wait_for_signal(Some(curr_pid), signal::SIGSTOP, false)?; + wait_for_signal(Some(curr_pid), signal::SIGSTOP, InitialCont::No)?; ptrace::cont(curr_pid, None).unwrap(); for evt in listener { match evt { - // start_ffi was called by the child, so prep memory. + // Child started ffi, so prep memory. ExecEvent::Start(ch_info) => { // All the pages that the child process is "allowed to" access. ch_pages = ch_info.page_ptrs; @@ -252,17 +243,17 @@ pub fn sv_loop( ch_stack = Some(ch_info.stack_ptr); // We received the signal and are no longer in the main listener loop, - // so we can let the child move on to the end of start_ffi where it will + // so we can let the child move on to the end of the ffi prep where it will // raise a SIGSTOP. We need it to be signal-stopped *and waited for* in // order to do most ptrace operations! confirm_tx.send(Confirmation).unwrap(); // We can't trust simply calling `Pid::this()` in the child process to give the right // PID for us, so we get it this way. - curr_pid = wait_for_signal(None, signal::SIGSTOP, false).unwrap(); + curr_pid = wait_for_signal(None, signal::SIGSTOP, InitialCont::No).unwrap(); ptrace::syscall(curr_pid, None).unwrap(); } - // end_ffi was called by the child. + // Child wants to end tracing. ExecEvent::End => { // Hand over the access info we traced. event_tx.send(MemEvents { acc_events }).unwrap(); @@ -322,10 +313,6 @@ fn get_disasm() -> capstone::Capstone { {cs_pre.x86().mode(arch::x86::ArchMode::Mode64)} #[cfg(target_arch = "x86")] {cs_pre.x86().mode(arch::x86::ArchMode::Mode32)} - #[cfg(target_arch = "aarch64")] - {cs_pre.arm64().mode(arch::arm64::ArchMode::Arm)} - #[cfg(target_arch = "arm")] - {cs_pre.arm().mode(arch::arm::ArchMode::Arm)} } .detail(true) .build() @@ -339,9 +326,9 @@ fn get_disasm() -> capstone::Capstone { fn wait_for_signal( pid: Option<unistd::Pid>, wait_signal: signal::Signal, - init_cont: bool, + init_cont: InitialCont, ) -> Result<unistd::Pid, ExecEnd> { - if init_cont { + if matches!(init_cont, InitialCont::Yes) { ptrace::cont(pid.unwrap(), None).unwrap(); } // Repeatedly call `waitid` until we get the signal we want, or the process dies. @@ -374,6 +361,84 @@ fn wait_for_signal( } } +/// Add the memory events from `op` being executed while there is a memory access at `addr` to +/// `acc_events`. Return whether this was a memory operand. +fn capstone_find_events( + addr: usize, + op: &capstone::arch::ArchOperand, + acc_events: &mut Vec<AccessEvent>, +) -> bool { + use capstone::prelude::*; + match op { + #[cfg(any(target_arch = "x86", target_arch = "x86_64"))] + arch::ArchOperand::X86Operand(x86_operand) => { + match x86_operand.op_type { + // We only care about memory accesses + arch::x86::X86OperandType::Mem(_) => { + let push = AccessRange { addr, size: x86_operand.size.into() }; + // It's called a "RegAccessType" but it also applies to memory + let acc_ty = x86_operand.access.unwrap(); + // The same instruction might do both reads and writes, so potentially add both. + // We do not know the order in which they happened, but writing and then reading + // makes little sense so we put the read first. That is also the more + // conservative choice. + if acc_ty.is_readable() { + acc_events.push(AccessEvent::Read(push.clone())); + } + if acc_ty.is_writable() { + // FIXME: This could be made certain; either determine all cases where + // only reads happen, or have an intermediate mempr_* function to first + // map the page(s) as readonly and check if a segfault occurred. + + // Per https://docs.rs/iced-x86/latest/iced_x86/enum.OpAccess.html, + // we know that the possible access types are Read, CondRead, Write, + // CondWrite, ReadWrite, and ReadCondWrite. Since we got a segfault + // we know some kind of access happened so Cond{Read, Write}s are + // certain reads and writes; the only uncertainty is with an RW op + // as it might be a ReadCondWrite with the write condition unmet. + acc_events.push(AccessEvent::Write(push, !acc_ty.is_readable())); + } + + return true; + } + _ => (), + } + } + // FIXME: arm64 + _ => unimplemented!(), + } + + false +} + +/// Extract the events from the given instruction. +fn capstone_disassemble( + instr: &[u8], + addr: usize, + cs: &capstone::Capstone, + acc_events: &mut Vec<AccessEvent>, +) -> capstone::CsResult<()> { + // The arch_detail is what we care about, but it relies on these temporaries + // that we can't drop. 0x1000 is the default base address for Captsone, and + // we're expecting 1 instruction. + let insns = cs.disasm_count(instr, 0x1000, 1)?; + let ins_detail = cs.insn_detail(&insns[0])?; + let arch_detail = ins_detail.arch_detail(); + + let mut found_mem_op = false; + + for op in arch_detail.operands() { + if capstone_find_events(addr, &op, acc_events) { + if found_mem_op { + panic!("more than one memory operand found; we don't know which one accessed what"); + } + found_mem_op = true; + } + } + + Ok(()) +} + /// Grabs the access that caused a segfault and logs it down if it's to our memory, /// or kills the child and returns the appropriate error otherwise. fn handle_segfault( @@ -384,116 +449,10 @@ fn handle_segfault( cs: &capstone::Capstone, acc_events: &mut Vec<AccessEvent>, ) -> Result<(), ExecEnd> { - /// This is just here to not pollute the main namespace with `capstone::prelude::*`. - #[inline] - fn capstone_disassemble( - instr: &[u8], - addr: usize, - cs: &capstone::Capstone, - acc_events: &mut Vec<AccessEvent>, - ) -> capstone::CsResult<()> { - use capstone::prelude::*; - - // The arch_detail is what we care about, but it relies on these temporaries - // that we can't drop. 0x1000 is the default base address for Captsone, and - // we're expecting 1 instruction. - let insns = cs.disasm_count(instr, 0x1000, 1)?; - let ins_detail = cs.insn_detail(&insns[0])?; - let arch_detail = ins_detail.arch_detail(); - - for op in arch_detail.operands() { - match op { - #[cfg(any(target_arch = "x86", target_arch = "x86_64"))] - arch::ArchOperand::X86Operand(x86_operand) => { - match x86_operand.op_type { - // We only care about memory accesses - arch::x86::X86OperandType::Mem(_) => { - let push = addr..addr.strict_add(usize::from(x86_operand.size)); - // It's called a "RegAccessType" but it also applies to memory - let acc_ty = x86_operand.access.unwrap(); - if acc_ty.is_readable() { - acc_events.push(AccessEvent::Read(push.clone())); - } - if acc_ty.is_writable() { - acc_events.push(AccessEvent::Write(push)); - } - } - _ => (), - } - } - #[cfg(target_arch = "aarch64")] - arch::ArchOperand::Arm64Operand(arm64_operand) => { - // Annoyingly, we don't always get the size here, so just be pessimistic for now. - match arm64_operand.op_type { - arch::arm64::Arm64OperandType::Mem(_) => { - // B = 1 byte, H = 2 bytes, S = 4 bytes, D = 8 bytes, Q = 16 bytes. - let size = match arm64_operand.vas { - // Not an fp/simd instruction. - arch::arm64::Arm64Vas::ARM64_VAS_INVALID => ARCH_WORD_SIZE, - // 1 byte. - arch::arm64::Arm64Vas::ARM64_VAS_1B => 1, - // 2 bytes. - arch::arm64::Arm64Vas::ARM64_VAS_1H => 2, - // 4 bytes. - arch::arm64::Arm64Vas::ARM64_VAS_4B - | arch::arm64::Arm64Vas::ARM64_VAS_2H - | arch::arm64::Arm64Vas::ARM64_VAS_1S => 4, - // 8 bytes. - arch::arm64::Arm64Vas::ARM64_VAS_8B - | arch::arm64::Arm64Vas::ARM64_VAS_4H - | arch::arm64::Arm64Vas::ARM64_VAS_2S - | arch::arm64::Arm64Vas::ARM64_VAS_1D => 8, - // 16 bytes. - arch::arm64::Arm64Vas::ARM64_VAS_16B - | arch::arm64::Arm64Vas::ARM64_VAS_8H - | arch::arm64::Arm64Vas::ARM64_VAS_4S - | arch::arm64::Arm64Vas::ARM64_VAS_2D - | arch::arm64::Arm64Vas::ARM64_VAS_1Q => 16, - }; - let push = addr..addr.strict_add(size); - // FIXME: This now has access type info in the latest - // git version of capstone because this pissed me off - // and I added it. Change this when it updates. - acc_events.push(AccessEvent::Read(push.clone())); - acc_events.push(AccessEvent::Write(push)); - } - _ => (), - } - } - #[cfg(target_arch = "arm")] - arch::ArchOperand::ArmOperand(arm_operand) => - match arm_operand.op_type { - arch::arm::ArmOperandType::Mem(_) => { - // We don't get info on the size of the access, but - // we're at least told if it's a vector instruction. - let size = if arm_operand.vector_index.is_some() { - ARCH_MAX_ACCESS_SIZE - } else { - ARCH_WORD_SIZE - }; - let push = addr..addr.strict_add(size); - let acc_ty = arm_operand.access.unwrap(); - if acc_ty.is_readable() { - acc_events.push(AccessEvent::Read(push.clone())); - } - if acc_ty.is_writable() { - acc_events.push(AccessEvent::Write(push)); - } - } - _ => (), - }, - _ => unimplemented!(), - } - } - - Ok(()) - } - // Get information on what caused the segfault. This contains the address // that triggered it. let siginfo = ptrace::getsiginfo(pid).unwrap(); - // All x86, ARM, etc. instructions only have at most one memory operand - // (thankfully!) + // All x86 instructions only have at most one memory operand (thankfully!) // SAFETY: si_addr is safe to call. let addr = unsafe { siginfo.si_addr().addr() }; let page_addr = addr.strict_sub(addr.strict_rem(page_size)); @@ -515,7 +474,7 @@ fn handle_segfault( // global atomic variables. This is what we use the temporary callback stack for. // - Step 1 instruction // - Parse executed code to estimate size & type of access - // - Reprotect the memory by executing `mempr_on` in the child. + // - Reprotect the memory by executing `mempr_on` in the child, using the callback stack again. // - Continue // Ensure the stack is properly zeroed out! @@ -540,7 +499,7 @@ fn handle_segfault( ptrace::write( pid, (&raw const PAGE_ADDR).cast_mut().cast(), - libc::c_long::try_from(page_addr).unwrap(), + libc::c_long::try_from(page_addr.cast_signed()).unwrap(), ) .unwrap(); @@ -552,7 +511,7 @@ fn handle_segfault( ptrace::setregs(pid, new_regs).unwrap(); // Our mempr_* functions end with a raise(SIGSTOP). - wait_for_signal(Some(pid), signal::SIGSTOP, true)?; + wait_for_signal(Some(pid), signal::SIGSTOP, InitialCont::Yes)?; // Step 1 instruction. ptrace::setregs(pid, regs_bak).unwrap(); @@ -573,6 +532,12 @@ fn handle_segfault( let regs_bak = ptrace::getregs(pid).unwrap(); new_regs = regs_bak; let ip_poststep = regs_bak.ip(); + + // Ensure that we've actually gone forwards. + assert!(ip_poststep > ip_prestep); + // But not by too much. 64 bytes should be "big enough" on ~any architecture. + assert!(ip_prestep.strict_add(64) > ip_poststep); + // We need to do reads/writes in word-sized chunks. let diff = (ip_poststep.strict_sub(ip_prestep)).div_ceil(ARCH_WORD_SIZE); let instr = (ip_prestep..ip_prestep.strict_add(diff)).fold(vec![], |mut ret, ip| { @@ -587,20 +552,14 @@ fn handle_segfault( }); // Now figure out the size + type of access and log it down. - // This will mark down e.g. the same area being read multiple times, - // since it's more efficient to compress the accesses at the end. - if capstone_disassemble(&instr, addr, cs, acc_events).is_err() { - // Read goes first because we need to be pessimistic. - acc_events.push(AccessEvent::Read(addr..addr.strict_add(ARCH_MAX_ACCESS_SIZE))); - acc_events.push(AccessEvent::Write(addr..addr.strict_add(ARCH_MAX_ACCESS_SIZE))); - } + capstone_disassemble(&instr, addr, cs, acc_events).expect("Failed to disassemble instruction"); // Reprotect everything and continue. #[expect(clippy::as_conversions)] new_regs.set_ip(mempr_on as usize); new_regs.set_sp(stack_ptr); ptrace::setregs(pid, new_regs).unwrap(); - wait_for_signal(Some(pid), signal::SIGSTOP, true)?; + wait_for_signal(Some(pid), signal::SIGSTOP, InitialCont::Yes)?; ptrace::setregs(pid, regs_bak).unwrap(); ptrace::syscall(pid, None).unwrap(); diff --git a/src/tools/miri/src/shims/native_lib/trace/stub.rs b/src/tools/miri/src/shims/native_lib/trace/stub.rs new file mode 100644 index 00000000000..22787a6f6fa --- /dev/null +++ b/src/tools/miri/src/shims/native_lib/trace/stub.rs @@ -0,0 +1,34 @@ +use rustc_const_eval::interpret::InterpResult; + +static SUPERVISOR: std::sync::Mutex<()> = std::sync::Mutex::new(()); + +pub struct Supervisor; + +#[derive(Debug)] +pub struct SvInitError; + +impl Supervisor { + #[inline(always)] + pub fn is_enabled() -> bool { + false + } + + pub fn do_ffi<'tcx, T>( + _: T, + f: impl FnOnce() -> InterpResult<'tcx, crate::ImmTy<'tcx>>, + ) -> InterpResult<'tcx, (crate::ImmTy<'tcx>, Option<super::MemEvents>)> { + // We acquire the lock to ensure that no two FFI calls run concurrently. + let _g = SUPERVISOR.lock().unwrap(); + f().map(|v| (v, None)) + } +} + +#[inline(always)] +#[allow(dead_code, clippy::missing_safety_doc)] +pub unsafe fn init_sv() -> Result<!, SvInitError> { + Err(SvInitError) +} + +#[inline(always)] +#[allow(dead_code)] +pub fn register_retcode_sv<T>(_: T) {} diff --git a/src/tools/miri/src/shims/panic.rs b/src/tools/miri/src/shims/panic.rs index 9490761d0c9..85564e47685 100644 --- a/src/tools/miri/src/shims/panic.rs +++ b/src/tools/miri/src/shims/panic.rs @@ -1,162 +1,12 @@ -//! Panic runtime for Miri. -//! -//! The core pieces of the runtime are: -//! - An implementation of `__rust_maybe_catch_panic` that pushes the invoked stack frame with -//! some extra metadata derived from the panic-catching arguments of `__rust_maybe_catch_panic`. -//! - A hack in `libpanic_unwind` that calls the `miri_start_unwind` intrinsic instead of the -//! target-native panic runtime. (This lives in the rustc repo.) -//! - An implementation of `miri_start_unwind` that stores its argument (the panic payload), and then -//! immediately returns, but on the *unwind* edge (not the normal return edge), thus initiating unwinding. -//! - A hook executed each time a frame is popped, such that if the frame pushed by `__rust_maybe_catch_panic` -//! gets popped *during unwinding*, we take the panic payload and store it according to the extra -//! metadata we remembered when pushing said frame. +//! Helper functions for causing panics. use rustc_abi::ExternAbi; use rustc_middle::{mir, ty}; -use rustc_target::spec::PanicStrategy; -use self::helpers::check_intrinsic_arg_count; use crate::*; -/// Holds all of the relevant data for when unwinding hits a `try` frame. -#[derive(Debug)] -pub struct CatchUnwindData<'tcx> { - /// The `catch_fn` callback to call in case of a panic. - catch_fn: Pointer, - /// The `data` argument for that callback. - data: ImmTy<'tcx>, - /// The return place from the original call to `try`. - dest: MPlaceTy<'tcx>, - /// The return block from the original call to `try`. - ret: Option<mir::BasicBlock>, -} - -impl VisitProvenance for CatchUnwindData<'_> { - fn visit_provenance(&self, visit: &mut VisitWith<'_>) { - let CatchUnwindData { catch_fn, data, dest, ret: _ } = self; - catch_fn.visit_provenance(visit); - data.visit_provenance(visit); - dest.visit_provenance(visit); - } -} - impl<'tcx> EvalContextExt<'tcx> for crate::MiriInterpCx<'tcx> {} pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { - /// Handles the special `miri_start_unwind` intrinsic, which is called - /// by libpanic_unwind to delegate the actual unwinding process to Miri. - fn handle_miri_start_unwind(&mut self, payload: &OpTy<'tcx>) -> InterpResult<'tcx> { - let this = self.eval_context_mut(); - - trace!("miri_start_unwind: {:?}", this.frame().instance()); - - let payload = this.read_immediate(payload)?; - let thread = this.active_thread_mut(); - thread.panic_payloads.push(payload); - - interp_ok(()) - } - - /// Handles the `catch_unwind` intrinsic. - fn handle_catch_unwind( - &mut self, - args: &[OpTy<'tcx>], - dest: &MPlaceTy<'tcx>, - ret: Option<mir::BasicBlock>, - ) -> InterpResult<'tcx> { - let this = self.eval_context_mut(); - - // Signature: - // fn catch_unwind(try_fn: fn(*mut u8), data: *mut u8, catch_fn: fn(*mut u8, *mut u8)) -> i32 - // Calls `try_fn` with `data` as argument. If that executes normally, returns 0. - // If that unwinds, calls `catch_fn` with the first argument being `data` and - // then second argument being a target-dependent `payload` (i.e. it is up to us to define - // what that is), and returns 1. - // The `payload` is passed (by libstd) to `__rust_panic_cleanup`, which is then expected to - // return a `Box<dyn Any + Send + 'static>`. - // In Miri, `miri_start_unwind` is passed exactly that type, so we make the `payload` simply - // a pointer to `Box<dyn Any + Send + 'static>`. - - // Get all the arguments. - let [try_fn, data, catch_fn] = check_intrinsic_arg_count(args)?; - let try_fn = this.read_pointer(try_fn)?; - let data = this.read_immediate(data)?; - let catch_fn = this.read_pointer(catch_fn)?; - - // Now we make a function call, and pass `data` as first and only argument. - let f_instance = this.get_ptr_fn(try_fn)?.as_instance()?; - trace!("try_fn: {:?}", f_instance); - #[allow(clippy::cloned_ref_to_slice_refs)] // the code is clearer as-is - this.call_function( - f_instance, - ExternAbi::Rust, - &[data.clone()], - None, - // Directly return to caller. - ReturnContinuation::Goto { ret, unwind: mir::UnwindAction::Continue }, - )?; - - // We ourselves will return `0`, eventually (will be overwritten if we catch a panic). - this.write_null(dest)?; - - // In unwind mode, we tag this frame with the extra data needed to catch unwinding. - // This lets `handle_stack_pop` (below) know that we should stop unwinding - // when we pop this frame. - if this.tcx.sess.panic_strategy() == PanicStrategy::Unwind { - this.frame_mut().extra.catch_unwind = - Some(CatchUnwindData { catch_fn, data, dest: dest.clone(), ret }); - } - - interp_ok(()) - } - - fn handle_stack_pop_unwind( - &mut self, - mut extra: FrameExtra<'tcx>, - unwinding: bool, - ) -> InterpResult<'tcx, ReturnAction> { - let this = self.eval_context_mut(); - trace!("handle_stack_pop_unwind(extra = {:?}, unwinding = {})", extra, unwinding); - - // We only care about `catch_panic` if we're unwinding - if we're doing a normal - // return, then we don't need to do anything special. - if let (true, Some(catch_unwind)) = (unwinding, extra.catch_unwind.take()) { - // We've just popped a frame that was pushed by `catch_unwind`, - // and we are unwinding, so we should catch that. - trace!( - "unwinding: found catch_panic frame during unwinding: {:?}", - this.frame().instance() - ); - - // We set the return value of `catch_unwind` to 1, since there was a panic. - this.write_scalar(Scalar::from_i32(1), &catch_unwind.dest)?; - - // The Thread's `panic_payload` holds what was passed to `miri_start_unwind`. - // This is exactly the second argument we need to pass to `catch_fn`. - let payload = this.active_thread_mut().panic_payloads.pop().unwrap(); - - // Push the `catch_fn` stackframe. - let f_instance = this.get_ptr_fn(catch_unwind.catch_fn)?.as_instance()?; - trace!("catch_fn: {:?}", f_instance); - this.call_function( - f_instance, - ExternAbi::Rust, - &[catch_unwind.data, payload], - None, - // Directly return to caller of `catch_unwind`. - ReturnContinuation::Goto { - ret: catch_unwind.ret, - // `catch_fn` must not unwind. - unwind: mir::UnwindAction::Unreachable, - }, - )?; - - // We pushed a new stack frame, the engine should not do any jumping now! - interp_ok(ReturnAction::NoJump) - } else { - interp_ok(ReturnAction::Normal) - } - } - /// Start a panic in the interpreter with the given message as payload. fn start_panic(&mut self, msg: &str, unwind: mir::UnwindAction) -> InterpResult<'tcx> { let this = self.eval_context_mut(); diff --git a/src/tools/miri/src/shims/tls.rs b/src/tools/miri/src/shims/tls.rs index 7182637437a..1200029692d 100644 --- a/src/tools/miri/src/shims/tls.rs +++ b/src/tools/miri/src/shims/tls.rs @@ -302,7 +302,7 @@ trait EvalContextPrivExt<'tcx>: crate::MiriInterpCxExt<'tcx> { // Windows has a special magic linker section that is run on certain events. // We don't support most of that, but just enough to make thread-local dtors in `std` work. - interp_ok(this.lookup_link_section(".CRT$XLB")?) + interp_ok(this.lookup_link_section(|section| section == ".CRT$XLB")?) } fn schedule_windows_tls_dtor(&mut self, dtor: ImmTy<'tcx>) -> InterpResult<'tcx> { diff --git a/src/tools/miri/src/shims/unix/fs.rs b/src/tools/miri/src/shims/unix/fs.rs index 0f7d453b296..0f2878ad26c 100644 --- a/src/tools/miri/src/shims/unix/fs.rs +++ b/src/tools/miri/src/shims/unix/fs.rs @@ -132,12 +132,12 @@ trait EvalContextExtPrivate<'tcx>: crate::MiriInterpCxExt<'tcx> { let buf = this.deref_pointer_as(buf_op, this.libc_ty_layout("stat"))?; this.write_int_fields_named( &[ - ("st_dev", 0), + ("st_dev", metadata.dev.into()), ("st_mode", mode.try_into().unwrap()), ("st_nlink", 0), ("st_ino", 0), - ("st_uid", 0), - ("st_gid", 0), + ("st_uid", metadata.uid.into()), + ("st_gid", metadata.gid.into()), ("st_rdev", 0), ("st_atime", access_sec.into()), ("st_mtime", modified_sec.into()), @@ -1544,6 +1544,9 @@ struct FileMetadata { created: Option<(u64, u32)>, accessed: Option<(u64, u32)>, modified: Option<(u64, u32)>, + dev: u64, + uid: u32, + gid: u32, } impl FileMetadata { @@ -1601,6 +1604,21 @@ impl FileMetadata { let modified = extract_sec_and_nsec(metadata.modified())?; // FIXME: Provide more fields using platform specific methods. - interp_ok(Ok(FileMetadata { mode, size, created, accessed, modified })) + + cfg_select! { + unix => { + use std::os::unix::fs::MetadataExt; + let dev = metadata.dev(); + let uid = metadata.uid(); + let gid = metadata.gid(); + } + _ => { + let dev = 0; + let uid = 0; + let gid = 0; + } + } + + interp_ok(Ok(FileMetadata { mode, size, created, accessed, modified, dev, uid, gid })) } } diff --git a/src/tools/miri/src/shims/unwind.rs b/src/tools/miri/src/shims/unwind.rs new file mode 100644 index 00000000000..ba0c50b54b4 --- /dev/null +++ b/src/tools/miri/src/shims/unwind.rs @@ -0,0 +1,160 @@ +//! Unwinding runtime for Miri. +//! +//! The core pieces of the runtime are: +//! - An implementation of `catch_unwind` that pushes the invoked stack frame with +//! some extra metadata derived from the panic-catching arguments of `catch_unwind`. +//! - A hack in `libpanic_unwind` that calls the `miri_start_unwind` intrinsic instead of the +//! target-native panic runtime. (This lives in the rustc repo.) +//! - An implementation of `miri_start_unwind` that stores its argument (the panic payload), and +//! then immediately returns, but on the *unwind* edge (not the normal return edge), thus +//! initiating unwinding. +//! - A hook executed each time a frame is popped, such that if the frame pushed by `catch_unwind` +//! gets popped *during unwinding*, we take the panic payload and store it according to the extra +//! metadata we remembered when pushing said frame. + +use rustc_abi::ExternAbi; +use rustc_middle::mir; +use rustc_target::spec::PanicStrategy; + +use self::helpers::check_intrinsic_arg_count; +use crate::*; + +/// Holds all of the relevant data for when unwinding hits a `try` frame. +#[derive(Debug)] +pub struct CatchUnwindData<'tcx> { + /// The `catch_fn` callback to call in case of a panic. + catch_fn: Pointer, + /// The `data` argument for that callback. + data: ImmTy<'tcx>, + /// The return place from the original call to `try`. + dest: MPlaceTy<'tcx>, + /// The return block from the original call to `try`. + ret: Option<mir::BasicBlock>, +} + +impl VisitProvenance for CatchUnwindData<'_> { + fn visit_provenance(&self, visit: &mut VisitWith<'_>) { + let CatchUnwindData { catch_fn, data, dest, ret: _ } = self; + catch_fn.visit_provenance(visit); + data.visit_provenance(visit); + dest.visit_provenance(visit); + } +} + +impl<'tcx> EvalContextExt<'tcx> for crate::MiriInterpCx<'tcx> {} +pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { + /// Handles the special `miri_start_unwind` intrinsic, which is called + /// by libpanic_unwind to delegate the actual unwinding process to Miri. + fn handle_miri_start_unwind(&mut self, payload: &OpTy<'tcx>) -> InterpResult<'tcx> { + let this = self.eval_context_mut(); + + trace!("miri_start_unwind: {:?}", this.frame().instance()); + + let payload = this.read_immediate(payload)?; + let thread = this.active_thread_mut(); + thread.unwind_payloads.push(payload); + + interp_ok(()) + } + + /// Handles the `catch_unwind` intrinsic. + fn handle_catch_unwind( + &mut self, + args: &[OpTy<'tcx>], + dest: &MPlaceTy<'tcx>, + ret: Option<mir::BasicBlock>, + ) -> InterpResult<'tcx> { + let this = self.eval_context_mut(); + + // Signature: + // fn catch_unwind(try_fn: fn(*mut u8), data: *mut u8, catch_fn: fn(*mut u8, *mut u8)) -> i32 + // Calls `try_fn` with `data` as argument. If that executes normally, returns 0. + // If that unwinds, calls `catch_fn` with the first argument being `data` and + // then second argument being a target-dependent `payload` (i.e. it is up to us to define + // what that is), and returns 1. + // The `payload` is passed (by libstd) to `__rust_panic_cleanup`, which is then expected to + // return a `Box<dyn Any + Send + 'static>`. + // In Miri, `miri_start_unwind` is passed exactly that type, so we make the `payload` simply + // a pointer to `Box<dyn Any + Send + 'static>`. + + // Get all the arguments. + let [try_fn, data, catch_fn] = check_intrinsic_arg_count(args)?; + let try_fn = this.read_pointer(try_fn)?; + let data = this.read_immediate(data)?; + let catch_fn = this.read_pointer(catch_fn)?; + + // Now we make a function call, and pass `data` as first and only argument. + let f_instance = this.get_ptr_fn(try_fn)?.as_instance()?; + trace!("try_fn: {:?}", f_instance); + #[allow(clippy::cloned_ref_to_slice_refs)] // the code is clearer as-is + this.call_function( + f_instance, + ExternAbi::Rust, + &[data.clone()], + None, + // Directly return to caller. + ReturnContinuation::Goto { ret, unwind: mir::UnwindAction::Continue }, + )?; + + // We ourselves will return `0`, eventually (will be overwritten if we catch a panic). + this.write_null(dest)?; + + // In unwind mode, we tag this frame with the extra data needed to catch unwinding. + // This lets `handle_stack_pop` (below) know that we should stop unwinding + // when we pop this frame. + if this.tcx.sess.panic_strategy() == PanicStrategy::Unwind { + this.frame_mut().extra.catch_unwind = + Some(CatchUnwindData { catch_fn, data, dest: dest.clone(), ret }); + } + + interp_ok(()) + } + + fn handle_stack_pop_unwind( + &mut self, + mut extra: FrameExtra<'tcx>, + unwinding: bool, + ) -> InterpResult<'tcx, ReturnAction> { + let this = self.eval_context_mut(); + trace!("handle_stack_pop_unwind(extra = {:?}, unwinding = {})", extra, unwinding); + + // We only care about `catch_panic` if we're unwinding - if we're doing a normal + // return, then we don't need to do anything special. + if let (true, Some(catch_unwind)) = (unwinding, extra.catch_unwind.take()) { + // We've just popped a frame that was pushed by `catch_unwind`, + // and we are unwinding, so we should catch that. + trace!( + "unwinding: found catch_panic frame during unwinding: {:?}", + this.frame().instance() + ); + + // We set the return value of `catch_unwind` to 1, since there was a panic. + this.write_scalar(Scalar::from_i32(1), &catch_unwind.dest)?; + + // The Thread's `panic_payload` holds what was passed to `miri_start_unwind`. + // This is exactly the second argument we need to pass to `catch_fn`. + let payload = this.active_thread_mut().unwind_payloads.pop().unwrap(); + + // Push the `catch_fn` stackframe. + let f_instance = this.get_ptr_fn(catch_unwind.catch_fn)?.as_instance()?; + trace!("catch_fn: {:?}", f_instance); + this.call_function( + f_instance, + ExternAbi::Rust, + &[catch_unwind.data, payload], + None, + // Directly return to caller of `catch_unwind`. + ReturnContinuation::Goto { + ret: catch_unwind.ret, + // `catch_fn` must not unwind. + unwind: mir::UnwindAction::Unreachable, + }, + )?; + + // We pushed a new stack frame, the engine should not do any jumping now! + interp_ok(ReturnAction::NoJump) + } else { + interp_ok(ReturnAction::Normal) + } + } +} diff --git a/src/tools/miri/tests/fail/dangling_pointers/out_of_bounds_read_neg_offset.rs b/src/tools/miri/tests/fail/dangling_pointers/out_of_bounds_read_neg_offset.rs new file mode 100644 index 00000000000..107a3db91d8 --- /dev/null +++ b/src/tools/miri/tests/fail/dangling_pointers/out_of_bounds_read_neg_offset.rs @@ -0,0 +1,6 @@ +fn main() { + let v: Vec<u16> = vec![1, 2]; + // This read is also misaligned. We make sure that the OOB message has priority. + let x = unsafe { *v.as_ptr().wrapping_byte_sub(5) }; //~ ERROR: before the beginning of the allocation + panic!("this should never print: {}", x); +} diff --git a/src/tools/miri/tests/fail/dangling_pointers/out_of_bounds_read_neg_offset.stderr b/src/tools/miri/tests/fail/dangling_pointers/out_of_bounds_read_neg_offset.stderr new file mode 100644 index 00000000000..5c37caa1ebf --- /dev/null +++ b/src/tools/miri/tests/fail/dangling_pointers/out_of_bounds_read_neg_offset.stderr @@ -0,0 +1,21 @@ +error: Undefined Behavior: memory access failed: attempting to access 2 bytes, but got ALLOC-0x5 which points to before the beginning of the allocation + --> tests/fail/dangling_pointers/out_of_bounds_read_neg_offset.rs:LL:CC + | +LL | let x = unsafe { *v.as_ptr().wrapping_byte_sub(5) }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Undefined Behavior occurred here + | + = 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 +help: ALLOC was allocated here: + --> tests/fail/dangling_pointers/out_of_bounds_read_neg_offset.rs:LL:CC + | +LL | let v: Vec<u16> = vec![1, 2]; + | ^^^^^^^^^^ + = note: BACKTRACE (of the first span): + = note: inside `main` at tests/fail/dangling_pointers/out_of_bounds_read_neg_offset.rs:LL:CC + = note: this error originates in the macro `vec` (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 + +error: aborting due to 1 previous error + diff --git a/src/tools/miri/tests/fail/intrinsics/ptr_offset_out_of_bounds_neg2.rs b/src/tools/miri/tests/fail/intrinsics/ptr_offset_out_of_bounds_neg2.rs new file mode 100644 index 00000000000..0085e2af367 --- /dev/null +++ b/src/tools/miri/tests/fail/intrinsics/ptr_offset_out_of_bounds_neg2.rs @@ -0,0 +1,6 @@ +fn main() { + let v = [0i8; 4]; + let x = &v as *const i8; + let x = unsafe { x.wrapping_offset(-1).offset(-1) }; //~ERROR: before the beginning of the allocation + panic!("this should never print: {:?}", x); +} diff --git a/src/tools/miri/tests/fail/intrinsics/ptr_offset_out_of_bounds_neg2.stderr b/src/tools/miri/tests/fail/intrinsics/ptr_offset_out_of_bounds_neg2.stderr new file mode 100644 index 00000000000..495aaf8d40e --- /dev/null +++ b/src/tools/miri/tests/fail/intrinsics/ptr_offset_out_of_bounds_neg2.stderr @@ -0,0 +1,20 @@ +error: Undefined Behavior: in-bounds pointer arithmetic failed: attempting to offset pointer by -1 bytes, but got ALLOC-0x1 which points to before the beginning of the allocation + --> tests/fail/intrinsics/ptr_offset_out_of_bounds_neg2.rs:LL:CC + | +LL | let x = unsafe { x.wrapping_offset(-1).offset(-1) }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Undefined Behavior occurred here + | + = 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 +help: ALLOC was allocated here: + --> tests/fail/intrinsics/ptr_offset_out_of_bounds_neg2.rs:LL:CC + | +LL | let v = [0i8; 4]; + | ^ + = note: BACKTRACE (of the first span): + = note: inside `main` at tests/fail/intrinsics/ptr_offset_out_of_bounds_neg2.rs:LL:CC + +note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace + +error: aborting due to 1 previous error + diff --git a/src/tools/miri/tests/native-lib/fail/tracing/partial_init.rs b/src/tools/miri/tests/native-lib/fail/tracing/partial_init.rs new file mode 100644 index 00000000000..e267f82e215 --- /dev/null +++ b/src/tools/miri/tests/native-lib/fail/tracing/partial_init.rs @@ -0,0 +1,25 @@ +//@only-target: x86_64-unknown-linux-gnu i686-unknown-linux-gnu +//@compile-flags: -Zmiri-native-lib-enable-tracing + +extern "C" { + fn init_n(n: i32, ptr: *mut u8); +} + +fn main() { + partial_init(); +} + +// Initialise the first 2 elements of the slice from native code, and check +// that the 3rd is correctly deemed uninit. +fn partial_init() { + let mut slice = std::mem::MaybeUninit::<[u8; 3]>::uninit(); + let slice_ptr = slice.as_mut_ptr().cast::<u8>(); + unsafe { + // Initialize the first two elements. + init_n(2, slice_ptr); + assert!(*slice_ptr == 0); + assert!(*slice_ptr.offset(1) == 0); + // Reading the third is UB! + let _val = *slice_ptr.offset(2); //~ ERROR: Undefined Behavior: using uninitialized data + } +} diff --git a/src/tools/miri/tests/native-lib/fail/tracing/partial_init.stderr b/src/tools/miri/tests/native-lib/fail/tracing/partial_init.stderr new file mode 100644 index 00000000000..84fd913b5e5 --- /dev/null +++ b/src/tools/miri/tests/native-lib/fail/tracing/partial_init.stderr @@ -0,0 +1,39 @@ +warning: sharing memory with a native function called via FFI + --> tests/native-lib/fail/tracing/partial_init.rs:LL:CC + | +LL | init_n(2, slice_ptr); + | ^^^^^^^^^^^^^^^^^^^^ sharing memory with a native function + | + = help: when memory is shared with a native function call, Miri can only track initialisation and provenance on a best-effort basis + = help: in particular, Miri assumes that the native call initializes all memory it has written to + = help: Miri also assumes that any part of this memory may be a pointer that is permitted to point to arbitrary exposed memory + = help: what this means is that Miri will easily miss Undefined Behavior related to incorrect usage of this shared memory, so you should not take a clean Miri run as a signal that your FFI code is UB-free + = help: tracing memory accesses in native code is not yet fully implemented, so there can be further imprecisions beyond what is documented here + = note: BACKTRACE: + = note: inside `partial_init` at tests/native-lib/fail/tracing/partial_init.rs:LL:CC +note: inside `main` + --> tests/native-lib/fail/tracing/partial_init.rs:LL:CC + | +LL | partial_init(); + | ^^^^^^^^^^^^^^ + +error: Undefined Behavior: using uninitialized data, but this operation requires initialized memory + --> tests/native-lib/fail/tracing/partial_init.rs:LL:CC + | +LL | let _val = *slice_ptr.offset(2); + | ^^^^^^^^^^^^^^^^^^^^ Undefined Behavior occurred here + | + = 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 `partial_init` at tests/native-lib/fail/tracing/partial_init.rs:LL:CC +note: inside `main` + --> tests/native-lib/fail/tracing/partial_init.rs:LL:CC + | +LL | partial_init(); + | ^^^^^^^^^^^^^^ + +note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace + +error: aborting due to 1 previous error; 1 warning emitted + diff --git a/src/tools/miri/tests/native-lib/fail/tracing/unexposed_reachable_alloc.rs b/src/tools/miri/tests/native-lib/fail/tracing/unexposed_reachable_alloc.rs new file mode 100644 index 00000000000..b78c29d98db --- /dev/null +++ b/src/tools/miri/tests/native-lib/fail/tracing/unexposed_reachable_alloc.rs @@ -0,0 +1,29 @@ +//@only-target: x86_64-unknown-linux-gnu i686-unknown-linux-gnu +//@compile-flags: -Zmiri-permissive-provenance -Zmiri-native-lib-enable-tracing + +extern "C" { + fn do_one_deref(ptr: *const *const *const i32) -> usize; +} + +fn main() { + unexposed_reachable_alloc(); +} + +// Expose 2 pointers by virtue of doing a native read and assert that the 3rd in +// the chain remains properly unexposed. +fn unexposed_reachable_alloc() { + let inner = 42; + let intermediate_a = &raw const inner; + let intermediate_b = &raw const intermediate_a; + let exposed = &raw const intermediate_b; + // Discard the return value; it's just there so the access in C doesn't get optimised away. + unsafe { do_one_deref(exposed) }; + // Native read should have exposed the address of intermediate_b... + let valid: *const i32 = std::ptr::with_exposed_provenance(intermediate_b.addr()); + // but not of intermediate_a. + let invalid: *const i32 = std::ptr::with_exposed_provenance(intermediate_a.addr()); + unsafe { + let _ok = *valid; + let _not_ok = *invalid; //~ ERROR: Undefined Behavior: memory access failed: attempting to access + } +} diff --git a/src/tools/miri/tests/native-lib/fail/tracing/unexposed_reachable_alloc.stderr b/src/tools/miri/tests/native-lib/fail/tracing/unexposed_reachable_alloc.stderr new file mode 100644 index 00000000000..2d34dac1b3f --- /dev/null +++ b/src/tools/miri/tests/native-lib/fail/tracing/unexposed_reachable_alloc.stderr @@ -0,0 +1,39 @@ +warning: sharing memory with a native function called via FFI + --> tests/native-lib/fail/tracing/unexposed_reachable_alloc.rs:LL:CC + | +LL | unsafe { do_one_deref(exposed) }; + | ^^^^^^^^^^^^^^^^^^^^^ sharing memory with a native function + | + = help: when memory is shared with a native function call, Miri can only track initialisation and provenance on a best-effort basis + = help: in particular, Miri assumes that the native call initializes all memory it has written to + = help: Miri also assumes that any part of this memory may be a pointer that is permitted to point to arbitrary exposed memory + = help: what this means is that Miri will easily miss Undefined Behavior related to incorrect usage of this shared memory, so you should not take a clean Miri run as a signal that your FFI code is UB-free + = help: tracing memory accesses in native code is not yet fully implemented, so there can be further imprecisions beyond what is documented here + = note: BACKTRACE: + = note: inside `unexposed_reachable_alloc` at tests/native-lib/fail/tracing/unexposed_reachable_alloc.rs:LL:CC +note: inside `main` + --> tests/native-lib/fail/tracing/unexposed_reachable_alloc.rs:LL:CC + | +LL | unexposed_reachable_alloc(); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: Undefined Behavior: memory access failed: attempting to access 4 bytes, but got $HEX[noalloc] which is a dangling pointer (it has no provenance) + --> tests/native-lib/fail/tracing/unexposed_reachable_alloc.rs:LL:CC + | +LL | let _not_ok = *invalid; + | ^^^^^^^^ Undefined Behavior occurred here + | + = 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 `unexposed_reachable_alloc` at tests/native-lib/fail/tracing/unexposed_reachable_alloc.rs:LL:CC +note: inside `main` + --> tests/native-lib/fail/tracing/unexposed_reachable_alloc.rs:LL:CC + | +LL | unexposed_reachable_alloc(); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace + +error: aborting due to 1 previous error; 1 warning emitted + diff --git a/src/tools/miri/tests/native-lib/pass/ptr_read_access.stderr b/src/tools/miri/tests/native-lib/pass/ptr_read_access.notrace.stderr index 04a3025baef..04a3025baef 100644 --- a/src/tools/miri/tests/native-lib/pass/ptr_read_access.stderr +++ b/src/tools/miri/tests/native-lib/pass/ptr_read_access.notrace.stderr diff --git a/src/tools/miri/tests/native-lib/pass/ptr_read_access.stdout b/src/tools/miri/tests/native-lib/pass/ptr_read_access.notrace.stdout index 1a8799abfc9..1a8799abfc9 100644 --- a/src/tools/miri/tests/native-lib/pass/ptr_read_access.stdout +++ b/src/tools/miri/tests/native-lib/pass/ptr_read_access.notrace.stdout diff --git a/src/tools/miri/tests/native-lib/pass/ptr_read_access.rs b/src/tools/miri/tests/native-lib/pass/ptr_read_access.rs index 4c852135367..4f3c37f00c1 100644 --- a/src/tools/miri/tests/native-lib/pass/ptr_read_access.rs +++ b/src/tools/miri/tests/native-lib/pass/ptr_read_access.rs @@ -1,3 +1,7 @@ +//@revisions: trace notrace +//@[trace] only-target: x86_64-unknown-linux-gnu i686-unknown-linux-gnu +//@[trace] compile-flags: -Zmiri-native-lib-enable-tracing + fn main() { test_access_pointer(); test_access_simple(); diff --git a/src/tools/miri/tests/native-lib/pass/ptr_read_access.trace.stderr b/src/tools/miri/tests/native-lib/pass/ptr_read_access.trace.stderr new file mode 100644 index 00000000000..c2a4508b7fc --- /dev/null +++ b/src/tools/miri/tests/native-lib/pass/ptr_read_access.trace.stderr @@ -0,0 +1,19 @@ +warning: sharing memory with a native function called via FFI + --> tests/native-lib/pass/ptr_read_access.rs:LL:CC + | +LL | unsafe { print_pointer(&x) }; + | ^^^^^^^^^^^^^^^^^ sharing memory with a native function + | + = help: when memory is shared with a native function call, Miri can only track initialisation and provenance on a best-effort basis + = help: in particular, Miri assumes that the native call initializes all memory it has written to + = help: Miri also assumes that any part of this memory may be a pointer that is permitted to point to arbitrary exposed memory + = help: what this means is that Miri will easily miss Undefined Behavior related to incorrect usage of this shared memory, so you should not take a clean Miri run as a signal that your FFI code is UB-free + = help: tracing memory accesses in native code is not yet fully implemented, so there can be further imprecisions beyond what is documented here + = note: BACKTRACE: + = note: inside `test_access_pointer` at tests/native-lib/pass/ptr_read_access.rs:LL:CC +note: inside `main` + --> tests/native-lib/pass/ptr_read_access.rs:LL:CC + | +LL | test_access_pointer(); + | ^^^^^^^^^^^^^^^^^^^^^ + diff --git a/src/tools/miri/tests/native-lib/pass/ptr_read_access.trace.stdout b/src/tools/miri/tests/native-lib/pass/ptr_read_access.trace.stdout new file mode 100644 index 00000000000..1a8799abfc9 --- /dev/null +++ b/src/tools/miri/tests/native-lib/pass/ptr_read_access.trace.stdout @@ -0,0 +1 @@ +printing pointer dereference from C: 42 diff --git a/src/tools/miri/tests/native-lib/pass/ptr_write_access.stderr b/src/tools/miri/tests/native-lib/pass/ptr_write_access.notrace.stderr index c893b0d9f65..c893b0d9f65 100644 --- a/src/tools/miri/tests/native-lib/pass/ptr_write_access.stderr +++ b/src/tools/miri/tests/native-lib/pass/ptr_write_access.notrace.stderr diff --git a/src/tools/miri/tests/native-lib/pass/ptr_write_access.rs b/src/tools/miri/tests/native-lib/pass/ptr_write_access.rs index 86a9c97f4ce..57def78b0ab 100644 --- a/src/tools/miri/tests/native-lib/pass/ptr_write_access.rs +++ b/src/tools/miri/tests/native-lib/pass/ptr_write_access.rs @@ -1,3 +1,6 @@ +//@revisions: trace notrace +//@[trace] only-target: x86_64-unknown-linux-gnu i686-unknown-linux-gnu +//@[trace] compile-flags: -Zmiri-native-lib-enable-tracing //@compile-flags: -Zmiri-permissive-provenance #![feature(box_as_ptr)] diff --git a/src/tools/miri/tests/native-lib/pass/ptr_write_access.trace.stderr b/src/tools/miri/tests/native-lib/pass/ptr_write_access.trace.stderr new file mode 100644 index 00000000000..dbf021b15be --- /dev/null +++ b/src/tools/miri/tests/native-lib/pass/ptr_write_access.trace.stderr @@ -0,0 +1,19 @@ +warning: sharing memory with a native function called via FFI + --> tests/native-lib/pass/ptr_write_access.rs:LL:CC + | +LL | unsafe { increment_int(&mut x) }; + | ^^^^^^^^^^^^^^^^^^^^^ sharing memory with a native function + | + = help: when memory is shared with a native function call, Miri can only track initialisation and provenance on a best-effort basis + = help: in particular, Miri assumes that the native call initializes all memory it has written to + = help: Miri also assumes that any part of this memory may be a pointer that is permitted to point to arbitrary exposed memory + = help: what this means is that Miri will easily miss Undefined Behavior related to incorrect usage of this shared memory, so you should not take a clean Miri run as a signal that your FFI code is UB-free + = help: tracing memory accesses in native code is not yet fully implemented, so there can be further imprecisions beyond what is documented here + = note: BACKTRACE: + = note: inside `test_increment_int` at tests/native-lib/pass/ptr_write_access.rs:LL:CC +note: inside `main` + --> tests/native-lib/pass/ptr_write_access.rs:LL:CC + | +LL | test_increment_int(); + | ^^^^^^^^^^^^^^^^^^^^ + diff --git a/src/tools/miri/tests/native-lib/ptr_read_access.c b/src/tools/miri/tests/native-lib/ptr_read_access.c index b89126d3d7c..021eb6adca4 100644 --- a/src/tools/miri/tests/native-lib/ptr_read_access.c +++ b/src/tools/miri/tests/native-lib/ptr_read_access.c @@ -49,3 +49,9 @@ typedef struct Static { EXPORT int32_t access_static(const Static *s_ptr) { return s_ptr->recurse->recurse->value; } + +/* Test: unexposed_reachable_alloc */ + +EXPORT uintptr_t do_one_deref(const int32_t ***ptr) { + return (uintptr_t)*ptr; +} diff --git a/src/tools/miri/tests/native-lib/ptr_write_access.c b/src/tools/miri/tests/native-lib/ptr_write_access.c index fd8b005499c..5260d0b3651 100644 --- a/src/tools/miri/tests/native-lib/ptr_write_access.c +++ b/src/tools/miri/tests/native-lib/ptr_write_access.c @@ -107,3 +107,11 @@ EXPORT void set_shared_mem(int32_t** ptr) { EXPORT void init_ptr_stored_in_shared_mem(int32_t val) { **shared_place = val; } + +/* Test: partial_init */ + +EXPORT void init_n(int32_t n, char* ptr) { + for (int i=0; i<n; i++) { + *(ptr+i) = 0; + } +} diff --git a/src/tools/miri/tests/pass/0weak_memory_consistency.rs b/src/tools/miri/tests/pass/0weak_memory_consistency.rs index b33aefaf1d5..e4ed9675de8 100644 --- a/src/tools/miri/tests/pass/0weak_memory_consistency.rs +++ b/src/tools/miri/tests/pass/0weak_memory_consistency.rs @@ -41,7 +41,15 @@ fn static_atomic_bool(val: bool) -> &'static AtomicBool { } /// Spins until it acquires a pre-determined value. -fn loads_value(loc: &AtomicI32, ord: Ordering, val: i32) -> i32 { +fn spin_until_i32(loc: &AtomicI32, ord: Ordering, val: i32) -> i32 { + while loc.load(ord) != val { + std::hint::spin_loop(); + } + val +} + +/// Spins until it acquires a pre-determined boolean. +fn spin_until_bool(loc: &AtomicBool, ord: Ordering, val: bool) -> bool { while loc.load(ord) != val { std::hint::spin_loop(); } @@ -65,7 +73,7 @@ fn test_corr() { }); // | | #[rustfmt::skip] // |synchronizes-with |happens-before let j3 = spawn(move || { // | | - loads_value(&y, Acquire, 1); // <------------+ | + spin_until_i32(&y, Acquire, 1); // <---------+ | x.load(Relaxed) // <----------------------------------------------+ // The two reads on x are ordered by hb, so they cannot observe values // differently from the modification order. If the first read observed @@ -90,12 +98,12 @@ fn test_wrc() { }); // | | #[rustfmt::skip] // |synchronizes-with | let j2 = spawn(move || { // | | - loads_value(&x, Acquire, 1); // <------------+ | + spin_until_i32(&x, Acquire, 1); // <---------+ | y.store(1, Release); // ---------------------+ |happens-before }); // | | #[rustfmt::skip] // |synchronizes-with | let j3 = spawn(move || { // | | - loads_value(&y, Acquire, 1); // <------------+ | + spin_until_i32(&y, Acquire, 1); // <---------+ | x.load(Relaxed) // <-----------------------------------------------+ }); @@ -121,7 +129,7 @@ fn test_message_passing() { #[rustfmt::skip] // |synchronizes-with | happens-before let j2 = spawn(move || { // | | let x = x; // avoid field capturing | | - loads_value(&y, Acquire, 1); // <------------+ | + spin_until_i32(&y, Acquire, 1); // <---------+ | unsafe { *x.0 } // <---------------------------------------------+ }); @@ -216,12 +224,12 @@ fn test_sync_through_rmw_and_fences() { let go = static_atomic_bool(false); let t1 = spawn(move || { - while !go.load(Relaxed) {} + spin_until_bool(go, Relaxed, true); rdmw(y, x, z) }); let t2 = spawn(move || { - while !go.load(Relaxed) {} + spin_until_bool(go, Relaxed, true); rdmw(z, x, y) }); diff --git a/src/tools/miri/tests/pass/0weak_memory_consistency_sc.rs b/src/tools/miri/tests/pass/0weak_memory_consistency_sc.rs index 45cc5e6e722..937c2a8cf28 100644 --- a/src/tools/miri/tests/pass/0weak_memory_consistency_sc.rs +++ b/src/tools/miri/tests/pass/0weak_memory_consistency_sc.rs @@ -20,7 +20,15 @@ fn static_atomic_bool(val: bool) -> &'static AtomicBool { } /// Spins until it acquires a pre-determined value. -fn loads_value(loc: &AtomicI32, ord: Ordering, val: i32) -> i32 { +fn spin_until_i32(loc: &AtomicI32, ord: Ordering, val: i32) -> i32 { + while loc.load(ord) != val { + std::hint::spin_loop(); + } + val +} + +/// Spins until it acquires a pre-determined boolean. +fn spin_until_bool(loc: &AtomicBool, ord: Ordering, val: bool) -> bool { while loc.load(ord) != val { std::hint::spin_loop(); } @@ -60,11 +68,11 @@ fn test_iriw_sc_rlx() { let a = spawn(move || x.store(true, Relaxed)); let b = spawn(move || y.store(true, Relaxed)); let c = spawn(move || { - while !x.load(SeqCst) {} + spin_until_bool(x, SeqCst, true); y.load(SeqCst) }); let d = spawn(move || { - while !y.load(SeqCst) {} + spin_until_bool(y, SeqCst, true); x.load(SeqCst) }); @@ -136,7 +144,7 @@ fn test_cpp20_rwc_syncs() { }); let j2 = spawn(move || { - loads_value(&x, Relaxed, 1); + spin_until_i32(&x, Relaxed, 1); fence(SeqCst); y.load(Relaxed) }); diff --git a/src/tools/miri/tests/pass/alloc-access-tracking.rs b/src/tools/miri/tests/pass/alloc-access-tracking.rs index 0e88951dc43..9eba0ca171b 100644 --- a/src/tools/miri/tests/pass/alloc-access-tracking.rs +++ b/src/tools/miri/tests/pass/alloc-access-tracking.rs @@ -1,7 +1,7 @@ #![no_std] #![no_main] -//@compile-flags: -Zmiri-track-alloc-id=20 -Zmiri-track-alloc-accesses -Cpanic=abort -//@normalize-stderr-test: "id 20" -> "id $$ALLOC" +//@compile-flags: -Zmiri-track-alloc-id=19 -Zmiri-track-alloc-accesses -Cpanic=abort +//@normalize-stderr-test: "id 19" -> "id $$ALLOC" //@only-target: linux # alloc IDs differ between OSes (due to extern static allocations) extern "Rust" { diff --git a/src/tools/miri/tests/pass/shims/ctor.rs b/src/tools/miri/tests/pass/shims/ctor.rs new file mode 100644 index 00000000000..b997d2386b8 --- /dev/null +++ b/src/tools/miri/tests/pass/shims/ctor.rs @@ -0,0 +1,46 @@ +use std::sync::atomic::{AtomicUsize, Ordering}; + +static COUNT: AtomicUsize = AtomicUsize::new(0); + +unsafe extern "C" fn ctor() { + COUNT.fetch_add(1, Ordering::Relaxed); +} + +#[rustfmt::skip] +macro_rules! ctor { + ($ident:ident = $ctor:ident) => { + #[cfg_attr( + all(any( + target_os = "linux", + target_os = "android", + target_os = "dragonfly", + target_os = "freebsd", + target_os = "haiku", + target_os = "illumos", + target_os = "netbsd", + target_os = "openbsd", + target_os = "solaris", + target_os = "none", + target_family = "wasm", + )), + link_section = ".init_array" + )] + #[cfg_attr(windows, link_section = ".CRT$XCU")] + #[cfg_attr( + any(target_os = "macos", target_os = "ios"), + // We do not set the `mod_init_funcs` flag here since ctor/inventory also do not do + // that. See <https://github.com/rust-lang/miri/pull/4459#discussion_r2200115629>. + link_section = "__DATA,__mod_init_func" + )] + #[used] + static $ident: unsafe extern "C" fn() = $ctor; + }; +} + +ctor! { CTOR1 = ctor } +ctor! { CTOR2 = ctor } +ctor! { CTOR3 = ctor } + +fn main() { + assert_eq!(COUNT.load(Ordering::Relaxed), 3, "ctors did not run"); +} diff --git a/src/tools/miri/tests/pass/weak_memory/weak.rs b/src/tools/miri/tests/pass/weak_memory/weak.rs index eeab4ebf129..199f83f0528 100644 --- a/src/tools/miri/tests/pass/weak_memory/weak.rs +++ b/src/tools/miri/tests/pass/weak_memory/weak.rs @@ -24,7 +24,7 @@ fn static_atomic(val: usize) -> &'static AtomicUsize { } // Spins until it reads the given value -fn reads_value(loc: &AtomicUsize, val: usize) -> usize { +fn spin_until(loc: &AtomicUsize, val: usize) -> usize { while loc.load(Relaxed) != val { std::hint::spin_loop(); } @@ -85,7 +85,7 @@ fn initialization_write(add_fence: bool) -> bool { }); let j2 = spawn(move || { - reads_value(wait, 1); + spin_until(wait, 1); if add_fence { fence(AcqRel); } @@ -119,12 +119,12 @@ fn faa_replaced_by_load() -> bool { let go = static_atomic(0); let t1 = spawn(move || { - while go.load(Relaxed) == 0 {} + spin_until(go, 1); rdmw(y, x, z) }); let t2 = spawn(move || { - while go.load(Relaxed) == 0 {} + spin_until(go, 1); rdmw(z, x, y) }); diff --git a/src/tools/remote-test-client/src/main.rs b/src/tools/remote-test-client/src/main.rs index bda08423487..b9741431b50 100644 --- a/src/tools/remote-test-client/src/main.rs +++ b/src/tools/remote-test-client/src/main.rs @@ -335,7 +335,9 @@ fn run(support_lib_count: usize, exe: String, all_args: Vec<String>) { std::process::exit(code); } else { println!("died due to signal {}", code); - std::process::exit(3); + // Behave like bash and other tools and exit with 128 + the signal + // number. That way we can avoid special case code in other places. + std::process::exit(128 + code); } } diff --git a/src/tools/rust-analyzer/Cargo.lock b/src/tools/rust-analyzer/Cargo.lock index 7432a82080d..e55cd80943d 100644 --- a/src/tools/rust-analyzer/Cargo.lock +++ b/src/tools/rust-analyzer/Cargo.lock @@ -154,6 +154,22 @@ dependencies = [ ] [[package]] +name = "cargo-util-schemas" +version = "0.8.2" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "7dc1a6f7b5651af85774ae5a34b4e8be397d9cf4bc063b7e6dbd99a841837830" +dependencies = [ + "semver", + "serde", + "serde-untagged", + "serde-value", + "thiserror 2.0.12", + "toml", + "unicode-xid", + "url", +] + +[[package]] name = "cargo_metadata" version = "0.20.0" source = "registry+https://github.com/rust-lang/crates.io-index" @@ -161,7 +177,22 @@ checksum = "4f7835cfc6135093070e95eb2b53e5d9b5c403dc3a6be6040ee026270aa82502" dependencies = [ "camino", "cargo-platform", - "cargo-util-schemas", + "cargo-util-schemas 0.2.0", + "semver", + "serde", + "serde_json", + "thiserror 2.0.12", +] + +[[package]] +name = "cargo_metadata" +version = "0.21.0" +source = "registry+https://github.com/rust-lang/crates.io-index" +checksum = "5cfca2aaa699835ba88faf58a06342a314a950d2b9686165e038286c30316868" +dependencies = [ + "camino", + "cargo-platform", + "cargo-util-schemas 0.8.2", "semver", "serde", "serde_json", @@ -1190,13 +1221,16 @@ checksum = "13dc2df351e3202783a1fe0d44375f7295ffb4049267b0f3018346dc122a1d94" name = "lsp-server" version = "0.7.8" dependencies = [ + "anyhow", "crossbeam-channel", "ctrlc", "log", "lsp-types", + "rustc-hash 2.1.1", "serde", "serde_derive", "serde_json", + "toolchain", ] [[package]] @@ -1471,7 +1505,7 @@ dependencies = [ "edition", "expect-test", "ra-ap-rustc_lexer", - "rustc-literal-escaper 0.0.4", + "rustc-literal-escaper", "stdx", "tracing", ] @@ -1599,7 +1633,7 @@ dependencies = [ name = "proc-macro-test" version = "0.0.0" dependencies = [ - "cargo_metadata", + "cargo_metadata 0.20.0", ] [[package]] @@ -1640,7 +1674,7 @@ version = "0.0.0" dependencies = [ "anyhow", "base-db", - "cargo_metadata", + "cargo_metadata 0.21.0", "cfg", "expect-test", "intern", @@ -1722,9 +1756,9 @@ dependencies = [ [[package]] name = "ra-ap-rustc_abi" -version = "0.116.0" +version = "0.121.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a967e3a9cd3e38b543f503978e0eccee461e3aea3f7b10e944959bff41dbe612" +checksum = "3ee51482d1c9d3e538acda8cce723db8eea1a81540544bf362bf4c3d841b2329" dependencies = [ "bitflags 2.9.1", "ra-ap-rustc_hashes", @@ -1734,18 +1768,18 @@ dependencies = [ [[package]] name = "ra-ap-rustc_hashes" -version = "0.116.0" +version = "0.121.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "1ea4c755ecbbffa5743c251344f484ebe571ec7bc5b36d80b2a8ae775d1a7a40" +checksum = "19c8f1e0c28e24e1b4c55dc08058c6c9829df2204497d4034259f491d348c204" dependencies = [ "rustc-stable-hash", ] [[package]] name = "ra-ap-rustc_index" -version = "0.116.0" +version = "0.121.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "aca7ad7cf911538c619caa2162339fe98637e9e46f11bb0484ef96735df4d64a" +checksum = "5f33f429cec6b92fa2c7243883279fb29dd233fdc3e94099aff32aa91aa87f50" dependencies = [ "ra-ap-rustc_index_macros", "smallvec", @@ -1753,9 +1787,9 @@ dependencies = [ [[package]] name = "ra-ap-rustc_index_macros" -version = "0.116.0" +version = "0.121.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "8767ba551c9355bc3031be072cc4bb0381106e5e7cd275e72b7a8c76051c4070" +checksum = "b9b55910dbe1fe7ef34bdc1d1bcb41e99b377eb680ea58a1218d95d6b4152257" dependencies = [ "proc-macro2", "quote", @@ -1764,9 +1798,9 @@ dependencies = [ [[package]] name = "ra-ap-rustc_lexer" -version = "0.116.0" +version = "0.121.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "6101374afb267e6c27e4e2eb0b1352e9f3504c1a8f716f619cd39244e2ed92ab" +checksum = "22944e31fb91e9b3e75bcbc91e37d958b8c0825a6160927f2856831d2ce83b36" dependencies = [ "memchr", "unicode-properties", @@ -1775,19 +1809,19 @@ dependencies = [ [[package]] name = "ra-ap-rustc_parse_format" -version = "0.116.0" +version = "0.121.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "ecd88a19f00da4f43e6727d5013444cbc399804b5046dfa2bbcd28ebed3970ce" +checksum = "81057891bc2063ad9e353f29462fbc47a0f5072560af34428ae9313aaa5e9d97" dependencies = [ "ra-ap-rustc_lexer", - "rustc-literal-escaper 0.0.2", + "rustc-literal-escaper", ] [[package]] name = "ra-ap-rustc_pattern_analysis" -version = "0.116.0" +version = "0.121.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "bb332dd32d7850a799862533b1c021e6062558861a4ad57817bf522499fbb892" +checksum = "fe21a3542980d56d2435e96c2720773cac1c63fd4db666417e414729da192eb3" dependencies = [ "ra-ap-rustc_index", "rustc-hash 2.1.1", @@ -1855,7 +1889,7 @@ version = "0.0.0" dependencies = [ "anyhow", "base64", - "cargo_metadata", + "cargo_metadata 0.21.0", "cfg", "crossbeam-channel", "dirs", @@ -1934,12 +1968,6 @@ checksum = "357703d41365b4b27c590e3ed91eabb1b663f07c4c084095e60cbed4362dff0d" [[package]] name = "rustc-literal-escaper" -version = "0.0.2" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "0041b6238913c41fe704213a4a9329e2f685a156d1781998128b4149c230ad04" - -[[package]] -name = "rustc-literal-escaper" version = "0.0.4" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "ab03008eb631b703dd16978282ae36c73282e7922fe101a4bd072a40ecea7b8b" @@ -2231,7 +2259,7 @@ dependencies = [ "rayon", "rowan", "rustc-hash 2.1.1", - "rustc-literal-escaper 0.0.4", + "rustc-literal-escaper", "rustc_apfloat", "smol_str", "stdx", diff --git a/src/tools/rust-analyzer/Cargo.toml b/src/tools/rust-analyzer/Cargo.toml index d268ce5b0bb..41fa06a76a7 100644 --- a/src/tools/rust-analyzer/Cargo.toml +++ b/src/tools/rust-analyzer/Cargo.toml @@ -4,7 +4,7 @@ exclude = ["crates/proc-macro-srv/proc-macro-test/imp"] resolver = "2" [workspace.package] -rust-version = "1.86" +rust-version = "1.88" edition = "2024" license = "MIT OR Apache-2.0" authors = ["rust-analyzer team"] @@ -89,11 +89,11 @@ vfs-notify = { path = "./crates/vfs-notify", version = "0.0.0" } vfs = { path = "./crates/vfs", version = "0.0.0" } edition = { path = "./crates/edition", version = "0.0.0" } -ra-ap-rustc_lexer = { version = "0.116", default-features = false } -ra-ap-rustc_parse_format = { version = "0.116", default-features = false } -ra-ap-rustc_index = { version = "0.116", default-features = false } -ra-ap-rustc_abi = { version = "0.116", default-features = false } -ra-ap-rustc_pattern_analysis = { version = "0.116", default-features = false } +ra-ap-rustc_lexer = { version = "0.121", default-features = false } +ra-ap-rustc_parse_format = { version = "0.121", default-features = false } +ra-ap-rustc_index = { version = "0.121", default-features = false } +ra-ap-rustc_abi = { version = "0.121", default-features = false } +ra-ap-rustc_pattern_analysis = { version = "0.121", default-features = false } # local crates that aren't published to crates.io. These should not have versions. @@ -106,7 +106,7 @@ lsp-server = { version = "0.7.8" } anyhow = "1.0.98" arrayvec = "0.7.6" bitflags = "2.9.1" -cargo_metadata = "0.20.0" +cargo_metadata = "0.21.0" camino = "1.1.10" chalk-solve = { version = "0.103.0", default-features = false } chalk-ir = "0.103.0" @@ -138,7 +138,11 @@ rayon = "1.10.0" rowan = "=0.15.15" # Ideally we'd not enable the macros feature but unfortunately the `tracked` attribute does not work # on impls without it -salsa = { version = "0.23.0", default-features = true, features = ["rayon","salsa_unstable", "macros"] } +salsa = { version = "0.23.0", default-features = true, features = [ + "rayon", + "salsa_unstable", + "macros", +] } salsa-macros = "0.23.0" semver = "1.0.26" serde = { version = "1.0.219" } diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store.rs index 51612f341a1..d3dfc05eb29 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store.rs @@ -22,6 +22,7 @@ use rustc_hash::FxHashMap; use smallvec::SmallVec; use span::{Edition, SyntaxContext}; use syntax::{AstPtr, SyntaxNodePtr, ast}; +use thin_vec::ThinVec; use triomphe::Arc; use tt::TextRange; @@ -93,17 +94,17 @@ pub type TypeSource = InFile<TypePtr>; pub type LifetimePtr = AstPtr<ast::Lifetime>; pub type LifetimeSource = InFile<LifetimePtr>; +// We split the store into types-only and expressions, because most stores (e.g. generics) +// don't store any expressions and this saves memory. Same thing for the source map. #[derive(Debug, PartialEq, Eq)] -pub struct ExpressionStore { - pub exprs: Arena<Expr>, - pub pats: Arena<Pat>, - pub bindings: Arena<Binding>, - pub labels: Arena<Label>, - pub types: Arena<TypeRef>, - pub lifetimes: Arena<LifetimeRef>, +struct ExpressionOnlyStore { + exprs: Arena<Expr>, + pats: Arena<Pat>, + bindings: Arena<Binding>, + labels: Arena<Label>, /// Id of the closure/coroutine that owns the corresponding binding. If a binding is owned by the /// top level expression, it will not be listed in here. - pub binding_owners: FxHashMap<BindingId, ExprId>, + binding_owners: FxHashMap<BindingId, ExprId>, /// Block expressions in this store that may contain inner items. block_scopes: Box<[BlockId]>, @@ -114,8 +115,15 @@ pub struct ExpressionStore { ident_hygiene: FxHashMap<ExprOrPatId, HygieneId>, } +#[derive(Debug, PartialEq, Eq)] +pub struct ExpressionStore { + expr_only: Option<Box<ExpressionOnlyStore>>, + pub types: Arena<TypeRef>, + pub lifetimes: Arena<LifetimeRef>, +} + #[derive(Debug, Eq, Default)] -pub struct ExpressionStoreSourceMap { +struct ExpressionOnlySourceMap { // AST expressions can create patterns in destructuring assignments. Therefore, `ExprSource` can also map // to `PatId`, and `PatId` can also map to `ExprSource` (the other way around is unaffected). expr_map: FxHashMap<ExprSource, ExprOrPatId>, @@ -127,12 +135,6 @@ pub struct ExpressionStoreSourceMap { label_map: FxHashMap<LabelSource, LabelId>, label_map_back: ArenaMap<LabelId, LabelSource>, - types_map_back: ArenaMap<TypeRefId, TypeSource>, - types_map: FxHashMap<TypeSource, TypeRefId>, - - lifetime_map_back: ArenaMap<LifetimeRefId, LifetimeSource>, - lifetime_map: FxHashMap<LifetimeSource, LifetimeRefId>, - binding_definitions: ArenaMap<BindingId, SmallVec<[PatId; 2 * size_of::<usize>() / size_of::<PatId>()]>>, @@ -143,14 +145,17 @@ pub struct ExpressionStoreSourceMap { template_map: Option<Box<FormatTemplate>>, - pub expansions: FxHashMap<InFile<MacroCallPtr>, MacroCallId>, + expansions: FxHashMap<InFile<MacroCallPtr>, MacroCallId>, /// Diagnostics accumulated during lowering. These contain `AstPtr`s and so are stored in /// the source map (since they're just as volatile). - pub diagnostics: Vec<ExpressionStoreDiagnostics>, + // + // We store diagnostics on the `ExpressionOnlySourceMap` because diagnostics are rare (except + // maybe for cfgs, and they are also not common in type places). + diagnostics: ThinVec<ExpressionStoreDiagnostics>, } -impl PartialEq for ExpressionStoreSourceMap { +impl PartialEq for ExpressionOnlySourceMap { fn eq(&self, other: &Self) -> bool { // we only need to compare one of the two mappings // as the other is a reverse mapping and thus will compare @@ -162,10 +167,6 @@ impl PartialEq for ExpressionStoreSourceMap { pat_map_back, label_map: _, label_map_back, - types_map_back, - types_map: _, - lifetime_map_back, - lifetime_map: _, // If this changed, our pattern data must have changed binding_definitions: _, // If this changed, our expression data must have changed @@ -179,14 +180,40 @@ impl PartialEq for ExpressionStoreSourceMap { *expr_map_back == other.expr_map_back && *pat_map_back == other.pat_map_back && *label_map_back == other.label_map_back - && *types_map_back == other.types_map_back - && *lifetime_map_back == other.lifetime_map_back && *template_map == other.template_map && *expansions == other.expansions && *diagnostics == other.diagnostics } } +#[derive(Debug, Eq, Default)] +pub struct ExpressionStoreSourceMap { + expr_only: Option<Box<ExpressionOnlySourceMap>>, + + types_map_back: ArenaMap<TypeRefId, TypeSource>, + types_map: FxHashMap<TypeSource, TypeRefId>, + + lifetime_map_back: ArenaMap<LifetimeRefId, LifetimeSource>, + #[expect( + unused, + reason = "this is here for completeness, and maybe we'll need it in the future" + )] + lifetime_map: FxHashMap<LifetimeSource, LifetimeRefId>, +} + +impl PartialEq for ExpressionStoreSourceMap { + fn eq(&self, other: &Self) -> bool { + // we only need to compare one of the two mappings + // as the other is a reverse mapping and thus will compare + // the same as normal mapping + let Self { expr_only, types_map_back, types_map: _, lifetime_map_back, lifetime_map: _ } = + self; + *expr_only == other.expr_only + && *types_map_back == other.types_map_back + && *lifetime_map_back == other.lifetime_map_back + } +} + /// The body of an item (function, const etc.). #[derive(Debug, Eq, PartialEq, Default)] pub struct ExpressionStoreBuilder { @@ -199,6 +226,42 @@ pub struct ExpressionStoreBuilder { pub types: Arena<TypeRef>, block_scopes: Vec<BlockId>, ident_hygiene: FxHashMap<ExprOrPatId, HygieneId>, + + // AST expressions can create patterns in destructuring assignments. Therefore, `ExprSource` can also map + // to `PatId`, and `PatId` can also map to `ExprSource` (the other way around is unaffected). + expr_map: FxHashMap<ExprSource, ExprOrPatId>, + expr_map_back: ArenaMap<ExprId, ExprOrPatSource>, + + pat_map: FxHashMap<PatSource, ExprOrPatId>, + pat_map_back: ArenaMap<PatId, ExprOrPatSource>, + + label_map: FxHashMap<LabelSource, LabelId>, + label_map_back: ArenaMap<LabelId, LabelSource>, + + types_map_back: ArenaMap<TypeRefId, TypeSource>, + types_map: FxHashMap<TypeSource, TypeRefId>, + + lifetime_map_back: ArenaMap<LifetimeRefId, LifetimeSource>, + lifetime_map: FxHashMap<LifetimeSource, LifetimeRefId>, + + binding_definitions: + ArenaMap<BindingId, SmallVec<[PatId; 2 * size_of::<usize>() / size_of::<PatId>()]>>, + + /// We don't create explicit nodes for record fields (`S { record_field: 92 }`). + /// Instead, we use id of expression (`92`) to identify the field. + field_map_back: FxHashMap<ExprId, FieldSource>, + pat_field_map_back: FxHashMap<PatId, PatFieldSource>, + + template_map: Option<Box<FormatTemplate>>, + + expansions: FxHashMap<InFile<MacroCallPtr>, MacroCallId>, + + /// Diagnostics accumulated during lowering. These contain `AstPtr`s and so are stored in + /// the source map (since they're just as volatile). + // + // We store diagnostics on the `ExpressionOnlySourceMap` because diagnostics are rare (except + // maybe for cfgs, and they are also not common in type places). + pub(crate) diagnostics: Vec<ExpressionStoreDiagnostics>, } #[derive(Default, Debug, Eq, PartialEq)] @@ -226,7 +289,7 @@ pub enum ExpressionStoreDiagnostics { } impl ExpressionStoreBuilder { - pub fn finish(self) -> ExpressionStore { + pub fn finish(self) -> (ExpressionStore, ExpressionStoreSourceMap) { let Self { block_scopes, mut exprs, @@ -237,6 +300,23 @@ impl ExpressionStoreBuilder { mut ident_hygiene, mut types, mut lifetimes, + + mut expr_map, + mut expr_map_back, + mut pat_map, + mut pat_map_back, + mut label_map, + mut label_map_back, + mut types_map_back, + mut types_map, + mut lifetime_map_back, + mut lifetime_map, + mut binding_definitions, + mut field_map_back, + mut pat_field_map_back, + mut template_map, + mut expansions, + diagnostics, } = self; exprs.shrink_to_fit(); labels.shrink_to_fit(); @@ -247,24 +327,90 @@ impl ExpressionStoreBuilder { types.shrink_to_fit(); lifetimes.shrink_to_fit(); - ExpressionStore { - exprs, - pats, - bindings, - labels, - binding_owners, - types, - lifetimes, - block_scopes: block_scopes.into_boxed_slice(), - ident_hygiene, + expr_map.shrink_to_fit(); + expr_map_back.shrink_to_fit(); + pat_map.shrink_to_fit(); + pat_map_back.shrink_to_fit(); + label_map.shrink_to_fit(); + label_map_back.shrink_to_fit(); + types_map_back.shrink_to_fit(); + types_map.shrink_to_fit(); + lifetime_map_back.shrink_to_fit(); + lifetime_map.shrink_to_fit(); + binding_definitions.shrink_to_fit(); + field_map_back.shrink_to_fit(); + pat_field_map_back.shrink_to_fit(); + if let Some(template_map) = &mut template_map { + let FormatTemplate { + format_args_to_captures, + asm_to_captures, + implicit_capture_to_source, + } = &mut **template_map; + format_args_to_captures.shrink_to_fit(); + asm_to_captures.shrink_to_fit(); + implicit_capture_to_source.shrink_to_fit(); } + expansions.shrink_to_fit(); + + let has_exprs = + !exprs.is_empty() || !labels.is_empty() || !pats.is_empty() || !bindings.is_empty(); + + let store = { + let expr_only = if has_exprs { + Some(Box::new(ExpressionOnlyStore { + exprs, + pats, + bindings, + labels, + binding_owners, + block_scopes: block_scopes.into_boxed_slice(), + ident_hygiene, + })) + } else { + None + }; + ExpressionStore { expr_only, types, lifetimes } + }; + + let source_map = { + let expr_only = if has_exprs || !expansions.is_empty() || !diagnostics.is_empty() { + Some(Box::new(ExpressionOnlySourceMap { + expr_map, + expr_map_back, + pat_map, + pat_map_back, + label_map, + label_map_back, + binding_definitions, + field_map_back, + pat_field_map_back, + template_map, + expansions, + diagnostics: ThinVec::from_iter(diagnostics), + })) + } else { + None + }; + ExpressionStoreSourceMap { + expr_only, + types_map_back, + types_map, + lifetime_map_back, + lifetime_map, + } + }; + + (store, source_map) } } impl ExpressionStore { - pub fn empty_singleton() -> Arc<Self> { - static EMPTY: LazyLock<Arc<ExpressionStore>> = - LazyLock::new(|| Arc::new(ExpressionStoreBuilder::default().finish())); + pub fn empty_singleton() -> (Arc<ExpressionStore>, Arc<ExpressionStoreSourceMap>) { + static EMPTY: LazyLock<(Arc<ExpressionStore>, Arc<ExpressionStoreSourceMap>)> = + LazyLock::new(|| { + let (store, source_map) = ExpressionStoreBuilder::default().finish(); + (Arc::new(store), Arc::new(source_map)) + }); EMPTY.clone() } @@ -273,7 +419,12 @@ impl ExpressionStore { &'a self, db: &'a dyn DefDatabase, ) -> impl Iterator<Item = (BlockId, &'a DefMap)> + 'a { - self.block_scopes.iter().map(move |&block| (block, block_def_map(db, block))) + self.expr_only + .as_ref() + .map(|it| &*it.block_scopes) + .unwrap_or_default() + .iter() + .map(move |&block| (block, block_def_map(db, block))) } pub fn walk_bindings_in_pat(&self, pat_id: PatId, mut f: impl FnMut(BindingId)) { @@ -320,7 +471,8 @@ impl ExpressionStore { } pub fn is_binding_upvar(&self, binding: BindingId, relative_to: ExprId) -> bool { - match self.binding_owners.get(&binding) { + let Some(expr_only) = &self.expr_only else { return false }; + match expr_only.binding_owners.get(&binding) { Some(it) => { // We assign expression ids in a way that outer closures will receive // a lower id @@ -330,6 +482,11 @@ impl ExpressionStore { } } + #[inline] + pub fn binding_owner(&self, id: BindingId) -> Option<ExprId> { + self.expr_only.as_ref()?.binding_owners.get(&id).copied() + } + /// Walks the immediate children expressions and calls `f` for each child expression. /// /// Note that this does not walk const blocks. @@ -601,16 +758,22 @@ impl ExpressionStore { }); } + #[inline] + #[track_caller] + fn assert_expr_only(&self) -> &ExpressionOnlyStore { + self.expr_only.as_ref().expect("should have `ExpressionStore::expr_only`") + } + fn binding_hygiene(&self, binding: BindingId) -> HygieneId { - self.bindings[binding].hygiene + self.assert_expr_only().bindings[binding].hygiene } pub fn expr_path_hygiene(&self, expr: ExprId) -> HygieneId { - self.ident_hygiene.get(&expr.into()).copied().unwrap_or(HygieneId::ROOT) + self.assert_expr_only().ident_hygiene.get(&expr.into()).copied().unwrap_or(HygieneId::ROOT) } pub fn pat_path_hygiene(&self, pat: PatId) -> HygieneId { - self.ident_hygiene.get(&pat.into()).copied().unwrap_or(HygieneId::ROOT) + self.assert_expr_only().ident_hygiene.get(&pat.into()).copied().unwrap_or(HygieneId::ROOT) } pub fn expr_or_pat_path_hygiene(&self, id: ExprOrPatId) -> HygieneId { @@ -619,43 +782,72 @@ impl ExpressionStore { ExprOrPatId::PatId(id) => self.pat_path_hygiene(id), } } + + #[inline] + pub fn exprs(&self) -> impl Iterator<Item = (ExprId, &Expr)> { + match &self.expr_only { + Some(it) => it.exprs.iter(), + None => const { &Arena::new() }.iter(), + } + } + + #[inline] + pub fn pats(&self) -> impl Iterator<Item = (PatId, &Pat)> { + match &self.expr_only { + Some(it) => it.pats.iter(), + None => const { &Arena::new() }.iter(), + } + } + + #[inline] + pub fn bindings(&self) -> impl Iterator<Item = (BindingId, &Binding)> { + match &self.expr_only { + Some(it) => it.bindings.iter(), + None => const { &Arena::new() }.iter(), + } + } } impl Index<ExprId> for ExpressionStore { type Output = Expr; + #[inline] fn index(&self, expr: ExprId) -> &Expr { - &self.exprs[expr] + &self.assert_expr_only().exprs[expr] } } impl Index<PatId> for ExpressionStore { type Output = Pat; + #[inline] fn index(&self, pat: PatId) -> &Pat { - &self.pats[pat] + &self.assert_expr_only().pats[pat] } } impl Index<LabelId> for ExpressionStore { type Output = Label; + #[inline] fn index(&self, label: LabelId) -> &Label { - &self.labels[label] + &self.assert_expr_only().labels[label] } } impl Index<BindingId> for ExpressionStore { type Output = Binding; + #[inline] fn index(&self, b: BindingId) -> &Binding { - &self.bindings[b] + &self.assert_expr_only().bindings[b] } } impl Index<TypeRefId> for ExpressionStore { type Output = TypeRef; + #[inline] fn index(&self, b: TypeRefId) -> &TypeRef { &self.types[b] } @@ -664,6 +856,7 @@ impl Index<TypeRefId> for ExpressionStore { impl Index<LifetimeRefId> for ExpressionStore { type Output = LifetimeRef; + #[inline] fn index(&self, b: LifetimeRefId) -> &LifetimeRef { &self.lifetimes[b] } @@ -684,12 +877,6 @@ impl Index<PathId> for ExpressionStore { // FIXME: Change `node_` prefix to something more reasonable. // Perhaps `expr_syntax` and `expr_id`? impl ExpressionStoreSourceMap { - pub fn empty_singleton() -> Arc<Self> { - static EMPTY: LazyLock<Arc<ExpressionStoreSourceMap>> = - LazyLock::new(|| Arc::new(ExpressionStoreSourceMap::default())); - EMPTY.clone() - } - pub fn expr_or_pat_syntax(&self, id: ExprOrPatId) -> Result<ExprOrPatSource, SyntheticSyntax> { match id { ExprOrPatId::ExprId(id) => self.expr_syntax(id), @@ -697,30 +884,46 @@ impl ExpressionStoreSourceMap { } } + #[inline] + fn expr_or_synthetic(&self) -> Result<&ExpressionOnlySourceMap, SyntheticSyntax> { + self.expr_only.as_deref().ok_or(SyntheticSyntax) + } + + #[inline] + fn expr_only(&self) -> Option<&ExpressionOnlySourceMap> { + self.expr_only.as_deref() + } + + #[inline] + #[track_caller] + fn assert_expr_only(&self) -> &ExpressionOnlySourceMap { + self.expr_only.as_ref().expect("should have `ExpressionStoreSourceMap::expr_only`") + } + pub fn expr_syntax(&self, expr: ExprId) -> Result<ExprOrPatSource, SyntheticSyntax> { - self.expr_map_back.get(expr).cloned().ok_or(SyntheticSyntax) + self.expr_or_synthetic()?.expr_map_back.get(expr).cloned().ok_or(SyntheticSyntax) } pub fn node_expr(&self, node: InFile<&ast::Expr>) -> Option<ExprOrPatId> { let src = node.map(AstPtr::new); - self.expr_map.get(&src).cloned() + self.expr_only()?.expr_map.get(&src).cloned() } pub fn node_macro_file(&self, node: InFile<&ast::MacroCall>) -> Option<MacroCallId> { let src = node.map(AstPtr::new); - self.expansions.get(&src).cloned() + self.expr_only()?.expansions.get(&src).cloned() } pub fn macro_calls(&self) -> impl Iterator<Item = (InFile<MacroCallPtr>, MacroCallId)> + '_ { - self.expansions.iter().map(|(&a, &b)| (a, b)) + self.expr_only().into_iter().flat_map(|it| it.expansions.iter().map(|(&a, &b)| (a, b))) } pub fn pat_syntax(&self, pat: PatId) -> Result<ExprOrPatSource, SyntheticSyntax> { - self.pat_map_back.get(pat).cloned().ok_or(SyntheticSyntax) + self.expr_or_synthetic()?.pat_map_back.get(pat).cloned().ok_or(SyntheticSyntax) } pub fn node_pat(&self, node: InFile<&ast::Pat>) -> Option<ExprOrPatId> { - self.pat_map.get(&node.map(AstPtr::new)).cloned() + self.expr_only()?.pat_map.get(&node.map(AstPtr::new)).cloned() } pub fn type_syntax(&self, id: TypeRefId) -> Result<TypeSource, SyntheticSyntax> { @@ -732,49 +935,50 @@ impl ExpressionStoreSourceMap { } pub fn label_syntax(&self, label: LabelId) -> LabelSource { - self.label_map_back[label] + self.assert_expr_only().label_map_back[label] } pub fn patterns_for_binding(&self, binding: BindingId) -> &[PatId] { - self.binding_definitions.get(binding).map_or(&[], Deref::deref) + self.assert_expr_only().binding_definitions.get(binding).map_or(&[], Deref::deref) } pub fn node_label(&self, node: InFile<&ast::Label>) -> Option<LabelId> { let src = node.map(AstPtr::new); - self.label_map.get(&src).cloned() + self.expr_only()?.label_map.get(&src).cloned() } pub fn field_syntax(&self, expr: ExprId) -> FieldSource { - self.field_map_back[&expr] + self.assert_expr_only().field_map_back[&expr] } pub fn pat_field_syntax(&self, pat: PatId) -> PatFieldSource { - self.pat_field_map_back[&pat] + self.assert_expr_only().pat_field_map_back[&pat] } pub fn macro_expansion_expr(&self, node: InFile<&ast::MacroExpr>) -> Option<ExprOrPatId> { let src = node.map(AstPtr::new).map(AstPtr::upcast::<ast::MacroExpr>).map(AstPtr::upcast); - self.expr_map.get(&src).copied() + self.expr_only()?.expr_map.get(&src).copied() } pub fn expansions(&self) -> impl Iterator<Item = (&InFile<MacroCallPtr>, &MacroCallId)> { - self.expansions.iter() + self.expr_only().into_iter().flat_map(|it| it.expansions.iter()) } pub fn expansion(&self, node: InFile<&ast::MacroCall>) -> Option<MacroCallId> { - self.expansions.get(&node.map(AstPtr::new)).copied() + self.expr_only()?.expansions.get(&node.map(AstPtr::new)).copied() } pub fn implicit_format_args( &self, node: InFile<&ast::FormatArgsExpr>, ) -> Option<(HygieneId, &[(syntax::TextRange, Name)])> { + let expr_only = self.expr_only()?; let src = node.map(AstPtr::new).map(AstPtr::upcast::<ast::Expr>); - let (hygiene, names) = self + let (hygiene, names) = expr_only .template_map .as_ref()? .format_args_to_captures - .get(&self.expr_map.get(&src)?.as_expr()?)?; + .get(&expr_only.expr_map.get(&src)?.as_expr()?)?; Some((*hygiene, &**names)) } @@ -782,67 +986,28 @@ impl ExpressionStoreSourceMap { &self, capture_expr: ExprId, ) -> Option<InFile<(ExprPtr, TextRange)>> { - self.template_map.as_ref()?.implicit_capture_to_source.get(&capture_expr).copied() + self.expr_only()? + .template_map + .as_ref()? + .implicit_capture_to_source + .get(&capture_expr) + .copied() } pub fn asm_template_args( &self, node: InFile<&ast::AsmExpr>, ) -> Option<(ExprId, &[Vec<(syntax::TextRange, usize)>])> { + let expr_only = self.expr_only()?; let src = node.map(AstPtr::new).map(AstPtr::upcast::<ast::Expr>); - let expr = self.expr_map.get(&src)?.as_expr()?; - Some(expr) - .zip(self.template_map.as_ref()?.asm_to_captures.get(&expr).map(std::ops::Deref::deref)) + let expr = expr_only.expr_map.get(&src)?.as_expr()?; + Some(expr).zip( + expr_only.template_map.as_ref()?.asm_to_captures.get(&expr).map(std::ops::Deref::deref), + ) } /// Get a reference to the source map's diagnostics. pub fn diagnostics(&self) -> &[ExpressionStoreDiagnostics] { - &self.diagnostics - } - - fn shrink_to_fit(&mut self) { - let Self { - expr_map, - expr_map_back, - pat_map, - pat_map_back, - label_map, - label_map_back, - field_map_back, - pat_field_map_back, - expansions, - template_map, - diagnostics, - binding_definitions, - types_map, - types_map_back, - lifetime_map_back, - lifetime_map, - } = self; - if let Some(template_map) = template_map { - let FormatTemplate { - format_args_to_captures, - asm_to_captures, - implicit_capture_to_source, - } = &mut **template_map; - format_args_to_captures.shrink_to_fit(); - asm_to_captures.shrink_to_fit(); - implicit_capture_to_source.shrink_to_fit(); - } - expr_map.shrink_to_fit(); - expr_map_back.shrink_to_fit(); - pat_map.shrink_to_fit(); - pat_map_back.shrink_to_fit(); - label_map.shrink_to_fit(); - label_map_back.shrink_to_fit(); - field_map_back.shrink_to_fit(); - pat_field_map_back.shrink_to_fit(); - expansions.shrink_to_fit(); - diagnostics.shrink_to_fit(); - binding_definitions.shrink_to_fit(); - types_map.shrink_to_fit(); - types_map_back.shrink_to_fit(); - lifetime_map.shrink_to_fit(); - lifetime_map_back.shrink_to_fit(); + self.expr_only().map(|it| &*it.diagnostics).unwrap_or_default() } } diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/body.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/body.rs index fb6d931e0e4..c955393b9cf 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/body.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/body.rs @@ -36,6 +36,7 @@ pub struct Body { impl ops::Deref for Body { type Target = ExpressionStore; + #[inline] fn deref(&self) -> &Self::Target { &self.store } @@ -61,6 +62,7 @@ pub struct BodySourceMap { impl ops::Deref for BodySourceMap { type Target = ExpressionStoreSourceMap; + #[inline] fn deref(&self) -> &Self::Target { &self.store } @@ -102,9 +104,7 @@ impl Body { } }; let module = def.module(db); - let (body, mut source_map) = - lower_body(db, def, file_id, module, params, body, is_async_fn); - source_map.store.shrink_to_fit(); + let (body, source_map) = lower_body(db, def, file_id, module, params, body, is_async_fn); (Arc::new(body), Arc::new(source_map)) } diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs index c0e51b338b4..4e877748ca2 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower.rs @@ -121,14 +121,10 @@ pub(super) fn lower_body( params = (0..count).map(|_| collector.missing_pat()).collect(); }; let body_expr = collector.missing_expr(); + let (store, source_map) = collector.store.finish(); return ( - Body { - store: collector.store.finish(), - params: params.into_boxed_slice(), - self_param, - body_expr, - }, - BodySourceMap { self_param: source_map_self_param, store: collector.source_map }, + Body { store, params: params.into_boxed_slice(), self_param, body_expr }, + BodySourceMap { self_param: source_map_self_param, store: source_map }, ); } @@ -171,14 +167,10 @@ pub(super) fn lower_body( }, ); + let (store, source_map) = collector.store.finish(); ( - Body { - store: collector.store.finish(), - params: params.into_boxed_slice(), - self_param, - body_expr, - }, - BodySourceMap { self_param: source_map_self_param, store: collector.source_map }, + Body { store, params: params.into_boxed_slice(), self_param, body_expr }, + BodySourceMap { self_param: source_map_self_param, store: source_map }, ) } @@ -190,7 +182,8 @@ pub(crate) fn lower_type_ref( let mut expr_collector = ExprCollector::new(db, module, type_ref.file_id); let type_ref = expr_collector.lower_type_ref_opt(type_ref.value, &mut ExprCollector::impl_trait_allocator); - (expr_collector.store.finish(), expr_collector.source_map, type_ref) + let (store, source_map) = expr_collector.store.finish(); + (store, source_map, type_ref) } pub(crate) fn lower_generic_params( @@ -205,7 +198,8 @@ pub(crate) fn lower_generic_params( let mut collector = generics::GenericParamsCollector::new(def); collector.lower(&mut expr_collector, param_list, where_clause); let params = collector.finish(); - (Arc::new(expr_collector.store.finish()), params, expr_collector.source_map) + let (store, source_map) = expr_collector.store.finish(); + (Arc::new(store), params, source_map) } pub(crate) fn lower_impl( @@ -232,7 +226,8 @@ pub(crate) fn lower_impl( impl_syntax.value.where_clause(), ); let params = collector.finish(); - (expr_collector.store.finish(), expr_collector.source_map, self_ty, trait_, params) + let (store, source_map) = expr_collector.store.finish(); + (store, source_map, self_ty, trait_, params) } pub(crate) fn lower_trait( @@ -253,7 +248,8 @@ pub(crate) fn lower_trait( trait_syntax.value.where_clause(), ); let params = collector.finish(); - (expr_collector.store.finish(), expr_collector.source_map, params) + let (store, source_map) = expr_collector.store.finish(); + (store, source_map, params) } pub(crate) fn lower_trait_alias( @@ -274,7 +270,8 @@ pub(crate) fn lower_trait_alias( trait_syntax.value.where_clause(), ); let params = collector.finish(); - (expr_collector.store.finish(), expr_collector.source_map, params) + let (store, source_map) = expr_collector.store.finish(); + (store, source_map, params) } pub(crate) fn lower_type_alias( @@ -313,7 +310,8 @@ pub(crate) fn lower_type_alias( .value .ty() .map(|ty| expr_collector.lower_type_ref(ty, &mut ExprCollector::impl_trait_allocator)); - (expr_collector.store.finish(), expr_collector.source_map, params, bounds, type_ref) + let (store, source_map) = expr_collector.store.finish(); + (store, source_map, params, bounds, type_ref) } pub(crate) fn lower_function( @@ -421,9 +419,10 @@ pub(crate) fn lower_function( } else { return_type }; + let (store, source_map) = expr_collector.store.finish(); ( - expr_collector.store.finish(), - expr_collector.source_map, + store, + source_map, generics, params.into_boxed_slice(), return_type, @@ -440,7 +439,6 @@ pub struct ExprCollector<'db> { local_def_map: &'db LocalDefMap, module: ModuleId, pub store: ExpressionStoreBuilder, - pub(crate) source_map: ExpressionStoreSourceMap, // state stuff // Prevent nested impl traits like `impl Foo<impl Bar>`. @@ -551,7 +549,6 @@ impl ExprCollector<'_> { module, def_map, local_def_map, - source_map: ExpressionStoreSourceMap::default(), store: ExpressionStoreBuilder::default(), expander, current_try_block_label: None, @@ -698,7 +695,7 @@ impl ExprCollector<'_> { let id = self.collect_macro_call(mcall, macro_ptr, true, |this, expansion| { this.lower_type_ref_opt(expansion, impl_trait_lower_fn) }); - self.source_map.types_map.insert(src, id); + self.store.types_map.insert(src, id); return id; } None => TypeRef::Error, @@ -732,8 +729,8 @@ impl ExprCollector<'_> { fn alloc_type_ref(&mut self, type_ref: TypeRef, node: TypePtr) -> TypeRefId { let id = self.store.types.alloc(type_ref); let ptr = self.expander.in_file(node); - self.source_map.types_map_back.insert(id, ptr); - self.source_map.types_map.insert(ptr, id); + self.store.types_map_back.insert(id, ptr); + self.store.types_map.insert(ptr, id); id } @@ -744,8 +741,8 @@ impl ExprCollector<'_> { ) -> LifetimeRefId { let id = self.store.lifetimes.alloc(lifetime_ref); let ptr = self.expander.in_file(node); - self.source_map.lifetime_map_back.insert(id, ptr); - self.source_map.lifetime_map.insert(ptr, id); + self.store.lifetime_map_back.insert(id, ptr); + self.store.lifetime_map.insert(ptr, id); id } @@ -1190,14 +1187,14 @@ impl ExprCollector<'_> { } ast::Expr::ContinueExpr(e) => { let label = self.resolve_label(e.lifetime()).unwrap_or_else(|e| { - self.source_map.diagnostics.push(e); + self.store.diagnostics.push(e); None }); self.alloc_expr(Expr::Continue { label }, syntax_ptr) } ast::Expr::BreakExpr(e) => { let label = self.resolve_label(e.lifetime()).unwrap_or_else(|e| { - self.source_map.diagnostics.push(e); + self.store.diagnostics.push(e); None }); let expr = e.expr().map(|e| self.collect_expr(e)); @@ -1207,7 +1204,7 @@ impl ExprCollector<'_> { let inner = self.collect_expr_opt(e.expr()); // make the paren expr point to the inner expression as well for IDE resolution let src = self.expander.in_file(syntax_ptr); - self.source_map.expr_map.insert(src, inner.into()); + self.store.expr_map.insert(src, inner.into()); inner } ast::Expr::ReturnExpr(e) => { @@ -1248,7 +1245,7 @@ impl ExprCollector<'_> { None => self.missing_expr(), }; let src = self.expander.in_file(AstPtr::new(&field)); - self.source_map.field_map_back.insert(expr, src); + self.store.field_map_back.insert(expr, src); Some(RecordLitField { name, expr }) }) .collect(); @@ -1271,12 +1268,10 @@ impl ExprCollector<'_> { ast::Expr::AwaitExpr(e) => { let expr = self.collect_expr_opt(e.expr()); if let Awaitable::No(location) = self.is_lowering_awaitable_block() { - self.source_map.diagnostics.push( - ExpressionStoreDiagnostics::AwaitOutsideOfAsync { - node: self.expander.in_file(AstPtr::new(&e)), - location: location.to_string(), - }, - ); + self.store.diagnostics.push(ExpressionStoreDiagnostics::AwaitOutsideOfAsync { + node: self.expander.in_file(AstPtr::new(&e)), + location: location.to_string(), + }); } self.alloc_expr(Expr::Await { expr }, syntax_ptr) } @@ -1442,7 +1437,7 @@ impl ExprCollector<'_> { // Make the macro-call point to its expanded expression so we can query // semantics on syntax pointers to the macro let src = self.expander.in_file(syntax_ptr); - self.source_map.expr_map.insert(src, id.into()); + self.store.expr_map.insert(src, id.into()); id } None => self.alloc_expr(Expr::Missing, syntax_ptr), @@ -1486,7 +1481,7 @@ impl ExprCollector<'_> { let expr = self.collect_expr(expr); // Do not use `alloc_pat_from_expr()` here, it will override the entry in `expr_map`. let id = self.store.pats.alloc(Pat::Expr(expr)); - self.source_map.pat_map_back.insert(id, src); + self.store.pat_map_back.insert(id, src); id }) } @@ -1555,7 +1550,7 @@ impl ExprCollector<'_> { let id = self.collect_macro_call(e, macro_ptr, true, |this, expansion| { this.collect_expr_as_pat_opt(expansion) }); - self.source_map.expr_map.insert(src, id.into()); + self.store.expr_map.insert(src, id.into()); id } ast::Expr::RecordExpr(e) => { @@ -1576,7 +1571,7 @@ impl ExprCollector<'_> { let pat = self.collect_expr_as_pat(field_expr); let name = f.field_name()?.as_name(); let src = self.expander.in_file(AstPtr::new(&f).wrap_left()); - self.source_map.pat_field_map_back.insert(pat, src); + self.store.pat_field_map_back.insert(pat, src); Some(RecordFieldPat { name, pat }) }) .collect(); @@ -1622,7 +1617,7 @@ impl ExprCollector<'_> { ); if let Either::Left(pat) = pat { let src = this.expander.in_file(AstPtr::new(&expr).wrap_left()); - this.source_map.pat_map_back.insert(pat, src); + this.store.pat_map_back.insert(pat, src); } pat } @@ -1968,7 +1963,7 @@ impl ExprCollector<'_> { self.module.krate(), resolver, &mut |ptr, call| { - _ = self.source_map.expansions.insert(ptr.map(|(it, _)| it), call); + _ = self.store.expansions.insert(ptr.map(|(it, _)| it), call); }, ) } @@ -1978,19 +1973,17 @@ impl ExprCollector<'_> { Ok(res) => res, Err(UnresolvedMacro { path }) => { if record_diagnostics { - self.source_map.diagnostics.push( - ExpressionStoreDiagnostics::UnresolvedMacroCall { - node: self.expander.in_file(syntax_ptr), - path, - }, - ); + self.store.diagnostics.push(ExpressionStoreDiagnostics::UnresolvedMacroCall { + node: self.expander.in_file(syntax_ptr), + path, + }); } return collector(self, None); } }; if record_diagnostics { if let Some(err) = res.err { - self.source_map + self.store .diagnostics .push(ExpressionStoreDiagnostics::MacroError { node: macro_call_ptr, err }); } @@ -2001,7 +1994,7 @@ impl ExprCollector<'_> { // Keep collecting even with expansion errors so we can provide completions and // other services in incomplete macro expressions. if let Some(macro_file) = self.expander.current_file_id().macro_file() { - self.source_map.expansions.insert(macro_call_ptr, macro_file); + self.store.expansions.insert(macro_call_ptr, macro_file); } if record_diagnostics { @@ -2050,7 +2043,7 @@ impl ExprCollector<'_> { // Make the macro-call point to its expanded expression so we can query // semantics on syntax pointers to the macro let src = self.expander.in_file(syntax_ptr); - self.source_map.expr_map.insert(src, tail.into()); + self.store.expr_map.insert(src, tail.into()); }) } @@ -2361,7 +2354,7 @@ impl ExprCollector<'_> { let pat = self.collect_pat(ast_pat, binding_list); let name = f.field_name()?.as_name(); let src = self.expander.in_file(AstPtr::new(&f).wrap_right()); - self.source_map.pat_field_map_back.insert(pat, src); + self.store.pat_field_map_back.insert(pat, src); Some(RecordFieldPat { name, pat }) }) .collect(); @@ -2424,7 +2417,7 @@ impl ExprCollector<'_> { self.collect_macro_call(call, macro_ptr, true, |this, expanded_pat| { this.collect_pat_opt(expanded_pat, binding_list) }); - self.source_map.pat_map.insert(src, pat.into()); + self.store.pat_map.insert(src, pat.into()); return pat; } None => Pat::Missing, @@ -2515,7 +2508,7 @@ impl ExprCollector<'_> { } }); if let Some(pat) = pat.left() { - self.source_map.pat_map.insert(src, pat.into()); + self.store.pat_map.insert(src, pat.into()); } pat } @@ -2537,7 +2530,7 @@ impl ExprCollector<'_> { match enabled { Ok(()) => true, Err(cfg) => { - self.source_map.diagnostics.push(ExpressionStoreDiagnostics::InactiveCode { + self.store.diagnostics.push(ExpressionStoreDiagnostics::InactiveCode { node: self.expander.in_file(SyntaxNodePtr::new(owner.syntax())), cfg, opts: self.cfg_options.clone(), @@ -2548,7 +2541,7 @@ impl ExprCollector<'_> { } fn add_definition_to_binding(&mut self, binding_id: BindingId, pat_id: PatId) { - self.source_map.binding_definitions.entry(binding_id).or_default().push(pat_id); + self.store.binding_definitions.entry(binding_id).or_default().push(pat_id); } // region: labels @@ -2724,7 +2717,7 @@ impl ExprCollector<'_> { |name, range| { let expr_id = self.alloc_expr_desugared(Expr::Path(Path::from(name))); if let Some(range) = range { - self.source_map + self.store .template_map .get_or_insert_with(Default::default) .implicit_capture_to_source @@ -2836,7 +2829,7 @@ impl ExprCollector<'_> { ) }; - self.source_map + self.store .template_map .get_or_insert_with(Default::default) .format_args_to_captures @@ -3386,8 +3379,8 @@ impl ExprCollector<'_> { fn alloc_expr(&mut self, expr: Expr, ptr: ExprPtr) -> ExprId { let src = self.expander.in_file(ptr); let id = self.store.exprs.alloc(expr); - self.source_map.expr_map_back.insert(id, src.map(AstPtr::wrap_left)); - self.source_map.expr_map.insert(src, id.into()); + self.store.expr_map_back.insert(id, src.map(AstPtr::wrap_left)); + self.store.expr_map.insert(src, id.into()); id } // FIXME: desugared exprs don't have ptr, that's wrong and should be fixed. @@ -3398,9 +3391,9 @@ impl ExprCollector<'_> { fn alloc_expr_desugared_with_ptr(&mut self, expr: Expr, ptr: ExprPtr) -> ExprId { let src = self.expander.in_file(ptr); let id = self.store.exprs.alloc(expr); - self.source_map.expr_map_back.insert(id, src.map(AstPtr::wrap_left)); + self.store.expr_map_back.insert(id, src.map(AstPtr::wrap_left)); // We intentionally don't fill this as it could overwrite a non-desugared entry - // self.source_map.expr_map.insert(src, id); + // self.store.expr_map.insert(src, id); id } fn missing_expr(&mut self) -> ExprId { @@ -3423,24 +3416,24 @@ impl ExprCollector<'_> { fn alloc_pat_from_expr(&mut self, pat: Pat, ptr: ExprPtr) -> PatId { let src = self.expander.in_file(ptr); let id = self.store.pats.alloc(pat); - self.source_map.expr_map.insert(src, id.into()); - self.source_map.pat_map_back.insert(id, src.map(AstPtr::wrap_left)); + self.store.expr_map.insert(src, id.into()); + self.store.pat_map_back.insert(id, src.map(AstPtr::wrap_left)); id } fn alloc_expr_from_pat(&mut self, expr: Expr, ptr: PatPtr) -> ExprId { let src = self.expander.in_file(ptr); let id = self.store.exprs.alloc(expr); - self.source_map.pat_map.insert(src, id.into()); - self.source_map.expr_map_back.insert(id, src.map(AstPtr::wrap_right)); + self.store.pat_map.insert(src, id.into()); + self.store.expr_map_back.insert(id, src.map(AstPtr::wrap_right)); id } fn alloc_pat(&mut self, pat: Pat, ptr: PatPtr) -> PatId { let src = self.expander.in_file(ptr); let id = self.store.pats.alloc(pat); - self.source_map.pat_map_back.insert(id, src.map(AstPtr::wrap_right)); - self.source_map.pat_map.insert(src, id.into()); + self.store.pat_map_back.insert(id, src.map(AstPtr::wrap_right)); + self.store.pat_map.insert(src, id.into()); id } // FIXME: desugared pats don't have ptr, that's wrong and should be fixed somehow. @@ -3454,8 +3447,8 @@ impl ExprCollector<'_> { fn alloc_label(&mut self, label: Label, ptr: LabelPtr) -> LabelId { let src = self.expander.in_file(ptr); let id = self.store.labels.alloc(label); - self.source_map.label_map_back.insert(id, src); - self.source_map.label_map.insert(src, id); + self.store.label_map_back.insert(id, src); + self.store.label_map.insert(src, id); id } // FIXME: desugared labels don't have ptr, that's wrong and should be fixed somehow. diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower/asm.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower/asm.rs index d36e5205c73..3bc4afb5c8a 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower/asm.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower/asm.rs @@ -10,7 +10,7 @@ use tt::TextRange; use crate::{ expr_store::lower::{ExprCollector, FxIndexSet}, - hir::{AsmOperand, AsmOptions, Expr, ExprId, InlineAsm, InlineAsmRegOrRegClass}, + hir::{AsmOperand, AsmOptions, Expr, ExprId, InlineAsm, InlineAsmKind, InlineAsmRegOrRegClass}, }; impl ExprCollector<'_> { @@ -269,11 +269,20 @@ impl ExprCollector<'_> { } }) }; + + let kind = if asm.global_asm_token().is_some() { + InlineAsmKind::GlobalAsm + } else if asm.naked_asm_token().is_some() { + InlineAsmKind::NakedAsm + } else { + InlineAsmKind::Asm + }; + let idx = self.alloc_expr( - Expr::InlineAsm(InlineAsm { operands: operands.into_boxed_slice(), options }), + Expr::InlineAsm(InlineAsm { operands: operands.into_boxed_slice(), options, kind }), syntax_ptr, ); - self.source_map + self.store .template_map .get_or_insert_with(Default::default) .asm_to_captures diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower/path/tests.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower/path/tests.rs index 8fd81c7b3df..f507841a91b 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower/path/tests.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/lower/path/tests.rs @@ -23,7 +23,7 @@ fn lower_path(path: ast::Path) -> (TestDB, ExpressionStore, Option<Path>) { let mut ctx = ExprCollector::new(&db, crate_def_map(&db, krate).root_module_id(), file_id.into()); let lowered_path = ctx.lower_path(path, &mut ExprCollector::impl_trait_allocator); - let store = ctx.store.finish(); + let (store, _) = ctx.store.finish(); (db, store, lowered_path) } diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/pretty.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/pretty.rs index 87bcd33ed7b..f1b011333d9 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/pretty.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/pretty.rs @@ -902,7 +902,7 @@ impl Printer<'_> { let mut same_name = false; if let Pat::Bind { id, subpat: None } = &self.store[arg.pat] { if let Binding { name, mode: BindingAnnotation::Unannotated, .. } = - &self.store.bindings[*id] + &self.store.assert_expr_only().bindings[*id] { if name.as_str() == field_name { same_name = true; @@ -1063,7 +1063,7 @@ impl Printer<'_> { } fn print_binding(&mut self, id: BindingId) { - let Binding { name, mode, .. } = &self.store.bindings[id]; + let Binding { name, mode, .. } = &self.store.assert_expr_only().bindings[id]; let mode = match mode { BindingAnnotation::Unannotated => "", BindingAnnotation::Mutable => "mut ", diff --git a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/scope.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/scope.rs index 2dd0b9bdb86..1952dae9d71 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/scope.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/scope.rs @@ -106,7 +106,9 @@ impl ExprScopes { let mut scopes = ExprScopes { scopes: Arena::default(), scope_entries: Arena::default(), - scope_by_expr: ArenaMap::with_capacity(body.exprs.len()), + scope_by_expr: ArenaMap::with_capacity( + body.expr_only.as_ref().map_or(0, |it| it.exprs.len()), + ), }; let mut root = scopes.root_scope(); if let Some(self_param) = body.self_param { @@ -179,7 +181,7 @@ impl ExprScopes { binding: BindingId, hygiene: HygieneId, ) { - let Binding { name, .. } = &store.bindings[binding]; + let Binding { name, .. } = &store[binding]; let entry = self.scope_entries.alloc(ScopeEntry { name: name.clone(), binding, hygiene }); self.scopes[scope].entries = IdxRange::new_inclusive(self.scopes[scope].entries.start()..=entry); @@ -251,7 +253,7 @@ fn compute_expr_scopes( scope: &mut ScopeId, ) { let make_label = - |label: &Option<LabelId>| label.map(|label| (label, store.labels[label].name.clone())); + |label: &Option<LabelId>| label.map(|label| (label, store[label].name.clone())); let compute_expr_scopes = |scopes: &mut ExprScopes, expr: ExprId, scope: &mut ScopeId| { compute_expr_scopes(expr, store, scopes, scope) @@ -534,9 +536,8 @@ fn foo() { }; let resolved = scopes.resolve_name_in_scope(expr_scope, &name_ref.as_name()).unwrap(); - let pat_src = source_map - .pat_syntax(*source_map.binding_definitions[resolved.binding()].first().unwrap()) - .unwrap(); + let pat_src = + source_map.pat_syntax(source_map.patterns_for_binding(resolved.binding())[0]).unwrap(); 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/expr_store/tests/body.rs b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests/body.rs index 927e280d739..c31428be28f 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests/body.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/expr_store/tests/body.rs @@ -508,9 +508,9 @@ fn f() { } "#, ); - assert_eq!(body.bindings.len(), 1, "should have a binding for `B`"); + assert_eq!(body.assert_expr_only().bindings.len(), 1, "should have a binding for `B`"); assert_eq!( - body.bindings[BindingId::from_raw(RawIdx::from_u32(0))].name.as_str(), + body[BindingId::from_raw(RawIdx::from_u32(0))].name.as_str(), "B", "should have a binding for `B`", ); @@ -566,6 +566,7 @@ const fn f(x: i32) -> i32 { ); let mtch_arms = body + .assert_expr_only() .exprs .iter() .find_map(|(_, expr)| { @@ -578,10 +579,10 @@ const fn f(x: i32) -> i32 { .unwrap(); let MatchArm { pat, .. } = mtch_arms[1]; - match body.pats[pat] { + match body[pat] { Pat::Range { start, end } => { - let hir_start = &body.exprs[start.unwrap()]; - let hir_end = &body.exprs[end.unwrap()]; + let hir_start = &body[start.unwrap()]; + let hir_end = &body[end.unwrap()]; assert!(matches!(hir_start, Expr::Path { .. })); assert!(matches!(hir_end, Expr::Path { .. })); diff --git a/src/tools/rust-analyzer/crates/hir-def/src/hir.rs b/src/tools/rust-analyzer/crates/hir-def/src/hir.rs index 0fc7857d978..e70cd2cd6c5 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/hir.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/hir.rs @@ -332,6 +332,17 @@ pub struct OffsetOf { pub struct InlineAsm { pub operands: Box<[(Option<Name>, AsmOperand)]>, pub options: AsmOptions, + pub kind: InlineAsmKind, +} + +#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)] +pub enum InlineAsmKind { + /// `asm!()`. + Asm, + /// `global_asm!()`. + GlobalAsm, + /// `naked_asm!()`. + NakedAsm, } #[derive(Clone, Copy, PartialEq, Eq, Hash)] 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 f3273667158..5ab61c89394 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 @@ -143,6 +143,8 @@ impl<'a> Ctx<'a> { ast::Item::MacroRules(ast) => self.lower_macro_rules(ast)?.into(), ast::Item::MacroDef(ast) => self.lower_macro_def(ast)?.into(), ast::Item::ExternBlock(ast) => self.lower_extern_block(ast).into(), + // FIXME: Handle `global_asm!()`. + ast::Item::AsmExpr(_) => return None, }; let attrs = RawAttrs::new(self.db, item, self.span_map()); self.add_attrs(mod_item.ast_id(), attrs); diff --git a/src/tools/rust-analyzer/crates/hir-def/src/item_tree/tests.rs b/src/tools/rust-analyzer/crates/hir-def/src/item_tree/tests.rs index 5923b3ea491..91b42bef8f7 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/item_tree/tests.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/item_tree/tests.rs @@ -35,10 +35,10 @@ use a::{c, d::{e}}; #![no_std] #![doc = " another file comment"] - // AstId: ExternCrate[5A82, 0] + // AstId: ExternCrate[070B, 0] pub(self) extern crate self as renamed; - // AstId: ExternCrate[7E1C, 0] + // AstId: ExternCrate[1EA5, 0] pub(in super) extern crate bli; // AstId: Use[0000, 0] @@ -78,15 +78,15 @@ extern "C" { // AstId: ExternBlock[0000, 0] extern { #[on_extern_type] - // AstId: TypeAlias[9FDF, 0] + // AstId: TypeAlias[A09C, 0] pub(self) type ExType; #[on_extern_static] - // AstId: Static[43C1, 0] + // AstId: Static[D85E, 0] pub(self) static EX_STATIC = _; #[on_extern_fn] - // AstId: Fn[452D, 0] + // AstId: Fn[B240, 0] pub(self) fn ex_fn; } "#]], @@ -124,20 +124,20 @@ enum E { } "#, expect![[r#" - // AstId: Struct[DFF3, 0] + // AstId: Struct[ED35, 0] pub(self) struct Unit; #[derive(Debug)] - // AstId: Struct[C7A1, 0] + // AstId: Struct[A47C, 0] pub(self) struct Struct { ... } - // AstId: Struct[DAC2, 0] + // AstId: Struct[C8C9, 0] pub(self) struct Tuple(...); - // AstId: Union[2DBB, 0] + // AstId: Union[2797, 0] pub(self) union Ize { ... } - // AstId: Enum[7FF8, 0] + // AstId: Enum[7D23, 0] pub(self) enum E { ... } "#]], ); @@ -162,18 +162,18 @@ trait Tr: SuperTrait + 'lifetime { } "#, expect![[r#" - // AstId: Static[B393, 0] + // AstId: Static[F7C1, 0] pub static ST = _; - // AstId: Const[B309, 0] + // AstId: Const[84BB, 0] pub(self) const _ = _; #[attr] #[inner_attr_in_fn] - // AstId: Fn[75E3, 0] + // AstId: Fn[BE8F, 0] pub(self) fn f; - // AstId: Trait[2998, 0] + // AstId: Trait[9320, 0] pub(self) trait Tr { ... } "#]], ); @@ -197,16 +197,16 @@ mod outline; expect![[r##" #[doc = " outer"] #[doc = " inner"] - // AstId: Module[CF93, 0] + // AstId: Module[03AE, 0] pub(self) mod inline { // AstId: Use[0000, 0] pub(self) use super::*; - // AstId: Fn[1B26, 0] + // AstId: Fn[2A78, 0] pub(self) fn fn_in_module; } - // AstId: Module[8994, 0] + // AstId: Module[C08B, 0] pub(self) mod outline; "##]], ); @@ -225,13 +225,13 @@ pub macro m2() {} m!(); "#, expect![[r#" - // AstId: MacroRules[88CE, 0] + // AstId: MacroRules[7E68, 0] macro_rules! m { ... } - // AstId: MacroDef[DC34, 0] + // AstId: MacroDef[1C1E, 0] pub macro m2 { ... } - // AstId: MacroCall[612F, 0], SyntaxContextId: ROOT2024, ExpandTo: Items + // AstId: MacroCall[7E68, 0], SyntaxContextId: ROOT2024, ExpandTo: Items m!(...); "#]], ); @@ -244,7 +244,7 @@ fn pub_self() { pub(self) struct S; "#, expect![[r#" - // AstId: Struct[42E2, 0] + // AstId: Struct[5024, 0] pub(self) struct S; "#]], ) diff --git a/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/builtin_fn_macro.rs b/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/builtin_fn_macro.rs index 293868df613..1c3af47d522 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/builtin_fn_macro.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/builtin_fn_macro.rs @@ -28,6 +28,19 @@ fn test_asm_expand() { r#" #[rustc_builtin_macro] macro_rules! asm {() => {}} +#[rustc_builtin_macro] +macro_rules! global_asm {() => {}} +#[rustc_builtin_macro] +macro_rules! naked_asm {() => {}} + +global_asm! { + "" +} + +#[unsafe(naked)] +extern "C" fn foo() { + naked_asm!(""); +} fn main() { let i: u64 = 3; @@ -45,6 +58,17 @@ fn main() { expect![[r##" #[rustc_builtin_macro] macro_rules! asm {() => {}} +#[rustc_builtin_macro] +macro_rules! global_asm {() => {}} +#[rustc_builtin_macro] +macro_rules! naked_asm {() => {}} + +builtin #global_asm ("") + +#[unsafe(naked)] +extern "C" fn foo() { + builtin #naked_asm (""); +} fn main() { let i: u64 = 3; diff --git a/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mbe.rs b/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mbe.rs index c6d901ec93b..c489c1f7c1d 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mbe.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mbe.rs @@ -35,9 +35,9 @@ macro_rules! f { }; } -struct#0:MacroRules[8C8E, 0]@58..64#14336# MyTraitMap2#0:MacroCall[D499, 0]@31..42#ROOT2024# {#0:MacroRules[8C8E, 0]@72..73#14336# - map#0:MacroRules[8C8E, 0]@86..89#14336#:#0:MacroRules[8C8E, 0]@89..90#14336# #0:MacroRules[8C8E, 0]@89..90#14336#::#0:MacroRules[8C8E, 0]@91..93#14336#std#0:MacroRules[8C8E, 0]@93..96#14336#::#0:MacroRules[8C8E, 0]@96..98#14336#collections#0:MacroRules[8C8E, 0]@98..109#14336#::#0:MacroRules[8C8E, 0]@109..111#14336#HashSet#0:MacroRules[8C8E, 0]@111..118#14336#<#0:MacroRules[8C8E, 0]@118..119#14336#(#0:MacroRules[8C8E, 0]@119..120#14336#)#0:MacroRules[8C8E, 0]@120..121#14336#>#0:MacroRules[8C8E, 0]@121..122#14336#,#0:MacroRules[8C8E, 0]@122..123#14336# -}#0:MacroRules[8C8E, 0]@132..133#14336# +struct#0:MacroRules[BE8F, 0]@58..64#14336# MyTraitMap2#0:MacroCall[BE8F, 0]@31..42#ROOT2024# {#0:MacroRules[BE8F, 0]@72..73#14336# + map#0:MacroRules[BE8F, 0]@86..89#14336#:#0:MacroRules[BE8F, 0]@89..90#14336# #0:MacroRules[BE8F, 0]@89..90#14336#::#0:MacroRules[BE8F, 0]@91..93#14336#std#0:MacroRules[BE8F, 0]@93..96#14336#::#0:MacroRules[BE8F, 0]@96..98#14336#collections#0:MacroRules[BE8F, 0]@98..109#14336#::#0:MacroRules[BE8F, 0]@109..111#14336#HashSet#0:MacroRules[BE8F, 0]@111..118#14336#<#0:MacroRules[BE8F, 0]@118..119#14336#(#0:MacroRules[BE8F, 0]@119..120#14336#)#0:MacroRules[BE8F, 0]@120..121#14336#>#0:MacroRules[BE8F, 0]@121..122#14336#,#0:MacroRules[BE8F, 0]@122..123#14336# +}#0:MacroRules[BE8F, 0]@132..133#14336# "#]], ); } @@ -75,12 +75,12 @@ macro_rules! f { }; } -fn#0:MacroCall[D499, 0]@30..32#ROOT2024# main#0:MacroCall[D499, 0]@33..37#ROOT2024#(#0:MacroCall[D499, 0]@37..38#ROOT2024#)#0:MacroCall[D499, 0]@38..39#ROOT2024# {#0:MacroCall[D499, 0]@40..41#ROOT2024# - 1#0:MacroCall[D499, 0]@50..51#ROOT2024#;#0:MacroCall[D499, 0]@51..52#ROOT2024# - 1.0#0:MacroCall[D499, 0]@61..64#ROOT2024#;#0:MacroCall[D499, 0]@64..65#ROOT2024# - (#0:MacroCall[D499, 0]@74..75#ROOT2024#(#0:MacroCall[D499, 0]@75..76#ROOT2024#1#0:MacroCall[D499, 0]@76..77#ROOT2024#,#0:MacroCall[D499, 0]@77..78#ROOT2024# )#0:MacroCall[D499, 0]@78..79#ROOT2024#,#0:MacroCall[D499, 0]@79..80#ROOT2024# )#0:MacroCall[D499, 0]@80..81#ROOT2024#.#0:MacroCall[D499, 0]@81..82#ROOT2024#0#0:MacroCall[D499, 0]@82..85#ROOT2024#.#0:MacroCall[D499, 0]@82..85#ROOT2024#0#0:MacroCall[D499, 0]@82..85#ROOT2024#;#0:MacroCall[D499, 0]@85..86#ROOT2024# - let#0:MacroCall[D499, 0]@95..98#ROOT2024# x#0:MacroCall[D499, 0]@99..100#ROOT2024# =#0:MacroCall[D499, 0]@101..102#ROOT2024# 1#0:MacroCall[D499, 0]@103..104#ROOT2024#;#0:MacroCall[D499, 0]@104..105#ROOT2024# -}#0:MacroCall[D499, 0]@110..111#ROOT2024# +fn#0:MacroCall[BE8F, 0]@30..32#ROOT2024# main#0:MacroCall[BE8F, 0]@33..37#ROOT2024#(#0:MacroCall[BE8F, 0]@37..38#ROOT2024#)#0:MacroCall[BE8F, 0]@38..39#ROOT2024# {#0:MacroCall[BE8F, 0]@40..41#ROOT2024# + 1#0:MacroCall[BE8F, 0]@50..51#ROOT2024#;#0:MacroCall[BE8F, 0]@51..52#ROOT2024# + 1.0#0:MacroCall[BE8F, 0]@61..64#ROOT2024#;#0:MacroCall[BE8F, 0]@64..65#ROOT2024# + (#0:MacroCall[BE8F, 0]@74..75#ROOT2024#(#0:MacroCall[BE8F, 0]@75..76#ROOT2024#1#0:MacroCall[BE8F, 0]@76..77#ROOT2024#,#0:MacroCall[BE8F, 0]@77..78#ROOT2024# )#0:MacroCall[BE8F, 0]@78..79#ROOT2024#,#0:MacroCall[BE8F, 0]@79..80#ROOT2024# )#0:MacroCall[BE8F, 0]@80..81#ROOT2024#.#0:MacroCall[BE8F, 0]@81..82#ROOT2024#0#0:MacroCall[BE8F, 0]@82..85#ROOT2024#.#0:MacroCall[BE8F, 0]@82..85#ROOT2024#0#0:MacroCall[BE8F, 0]@82..85#ROOT2024#;#0:MacroCall[BE8F, 0]@85..86#ROOT2024# + let#0:MacroCall[BE8F, 0]@95..98#ROOT2024# x#0:MacroCall[BE8F, 0]@99..100#ROOT2024# =#0:MacroCall[BE8F, 0]@101..102#ROOT2024# 1#0:MacroCall[BE8F, 0]@103..104#ROOT2024#;#0:MacroCall[BE8F, 0]@104..105#ROOT2024# +}#0:MacroCall[BE8F, 0]@110..111#ROOT2024# "#]], @@ -171,7 +171,7 @@ fn main(foo: ()) { } fn main(foo: ()) { - /* error: unresolved macro unresolved */"helloworld!"#0:Fn[B9C7, 0]@236..321#ROOT2024#; + /* error: unresolved macro unresolved */"helloworld!"#0:Fn[15AE, 0]@236..321#ROOT2024#; } } @@ -197,7 +197,7 @@ macro_rules! mk_struct { #[macro_use] mod foo; -struct#1:MacroRules[E572, 0]@59..65#14336# Foo#0:MacroCall[BDD3, 0]@32..35#ROOT2024#(#1:MacroRules[E572, 0]@70..71#14336#u32#0:MacroCall[BDD3, 0]@41..44#ROOT2024#)#1:MacroRules[E572, 0]@74..75#14336#;#1:MacroRules[E572, 0]@75..76#14336# +struct#1:MacroRules[DB0C, 0]@59..65#14336# Foo#0:MacroCall[DB0C, 0]@32..35#ROOT2024#(#1:MacroRules[DB0C, 0]@70..71#14336#u32#0:MacroCall[DB0C, 0]@41..44#ROOT2024#)#1:MacroRules[DB0C, 0]@74..75#14336#;#1:MacroRules[DB0C, 0]@75..76#14336# "#]], ); } diff --git a/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mod.rs b/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mod.rs index 1c69b37f164..5e95b061399 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mod.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/mod.rs @@ -20,13 +20,14 @@ use base_db::RootQueryDb; use expect_test::Expect; use hir_expand::{ AstId, InFile, MacroCallId, MacroCallKind, MacroKind, + builtin::quote::quote, db::ExpandDatabase, proc_macro::{ProcMacro, ProcMacroExpander, ProcMacroExpansionError, ProcMacroKind}, span_map::SpanMapRef, }; -use intern::Symbol; +use intern::{Symbol, sym}; use itertools::Itertools; -use span::{Edition, Span}; +use span::{Edition, ROOT_ERASED_FILE_AST_ID, Span, SpanAnchor, SyntaxContext}; use stdx::{format_to, format_to_acc}; use syntax::{ AstNode, AstPtr, @@ -34,7 +35,9 @@ use syntax::{ SyntaxNode, T, ast::{self, edit::IndentLevel}, }; +use syntax_bridge::token_tree_to_syntax_node; use test_fixture::WithFixture; +use tt::{TextRange, TextSize}; use crate::{ AdtId, Lookup, ModuleDefId, @@ -386,3 +389,38 @@ impl ProcMacroExpander for IdentityWhenValidProcMacroExpander { other.type_id() == TypeId::of::<Self>() } } + +#[test] +fn regression_20171() { + // This really isn't the appropriate place to put this test, but it's convenient with access to `quote!`. + let span = Span { + range: TextRange::empty(TextSize::new(0)), + anchor: SpanAnchor { + file_id: span::EditionedFileId::current_edition(span::FileId::from_raw(0)), + ast_id: ROOT_ERASED_FILE_AST_ID, + }, + ctx: SyntaxContext::root(Edition::CURRENT), + }; + let close_brace = tt::Punct { char: '}', spacing: tt::Spacing::Alone, span }; + let dotdot1 = tt::Punct { char: '.', spacing: tt::Spacing::Joint, span }; + let dotdot2 = tt::Punct { char: '.', spacing: tt::Spacing::Alone, span }; + let dollar_crate = sym::dollar_crate; + let tt = quote! { + span => { + if !((matches!( + drive_parser(&mut parser, data, false), + Err(TarParserError::CorruptField { + field: CorruptFieldContext::PaxKvLength, + error: GeneralParseError::ParseInt(ParseIntError { #dotdot1 #dotdot2 }) + }) + #close_brace ))) { + #dollar_crate::panic::panic_2021!(); + }} + }; + token_tree_to_syntax_node( + &tt, + syntax_bridge::TopEntryPoint::MacroStmts, + &mut |_| Edition::CURRENT, + Edition::CURRENT, + ); +} diff --git a/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/proc_macros.rs b/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/proc_macros.rs index d5ae6f8d885..6952a9da101 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/proc_macros.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/macro_expansion_tests/proc_macros.rs @@ -181,9 +181,9 @@ fn foo(&self) { self.0. 1; } -fn#0:Fn[4D85, 0]@45..47#ROOT2024# foo#0:Fn[4D85, 0]@48..51#ROOT2024#(#0:Fn[4D85, 0]@51..52#ROOT2024#�:Fn[4D85, 0]@52..53#ROOT2024#self#0:Fn[4D85, 0]@53..57#ROOT2024# )#0:Fn[4D85, 0]@57..58#ROOT2024# {#0:Fn[4D85, 0]@59..60#ROOT2024# - self#0:Fn[4D85, 0]@65..69#ROOT2024# .#0:Fn[4D85, 0]@69..70#ROOT2024#0#0:Fn[4D85, 0]@70..71#ROOT2024#.#0:Fn[4D85, 0]@71..72#ROOT2024#1#0:Fn[4D85, 0]@73..74#ROOT2024#;#0:Fn[4D85, 0]@74..75#ROOT2024# -}#0:Fn[4D85, 0]@76..77#ROOT2024#"#]], +fn#0:Fn[8A31, 0]@45..47#ROOT2024# foo#0:Fn[8A31, 0]@48..51#ROOT2024#(#0:Fn[8A31, 0]@51..52#ROOT2024#�:Fn[8A31, 0]@52..53#ROOT2024#self#0:Fn[8A31, 0]@53..57#ROOT2024# )#0:Fn[8A31, 0]@57..58#ROOT2024# {#0:Fn[8A31, 0]@59..60#ROOT2024# + self#0:Fn[8A31, 0]@65..69#ROOT2024# .#0:Fn[8A31, 0]@69..70#ROOT2024#0#0:Fn[8A31, 0]@70..71#ROOT2024#.#0:Fn[8A31, 0]@71..72#ROOT2024#1#0:Fn[8A31, 0]@73..74#ROOT2024#;#0:Fn[8A31, 0]@74..75#ROOT2024# +}#0:Fn[8A31, 0]@76..77#ROOT2024#"#]], ); } diff --git a/src/tools/rust-analyzer/crates/hir-def/src/nameres.rs b/src/tools/rust-analyzer/crates/hir-def/src/nameres.rs index 0837308d5b6..5030585147d 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/nameres.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/nameres.rs @@ -373,19 +373,14 @@ pub fn crate_def_map(db: &dyn DefDatabase, crate_id: Crate) -> &DefMap { crate_local_def_map(db, crate_id).def_map(db) } -#[allow(unused_lifetimes)] -mod __ { - use super::*; - #[salsa_macros::tracked] - pub(crate) struct DefMapPair<'db> { - #[tracked] - #[returns(ref)] - pub(crate) def_map: DefMap, - #[returns(ref)] - pub(crate) local: LocalDefMap, - } +#[salsa_macros::tracked] +pub(crate) struct DefMapPair<'db> { + #[tracked] + #[returns(ref)] + pub(crate) def_map: DefMap, + #[returns(ref)] + pub(crate) local: LocalDefMap, } -pub(crate) use __::DefMapPair; #[salsa_macros::tracked(returns(ref))] pub(crate) fn crate_local_def_map(db: &dyn DefDatabase, crate_id: Crate) -> DefMapPair<'_> { diff --git a/src/tools/rust-analyzer/crates/hir-def/src/resolver.rs b/src/tools/rust-analyzer/crates/hir-def/src/resolver.rs index 6f321980af4..316ad5dae69 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/resolver.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/resolver.rs @@ -1052,17 +1052,6 @@ impl<'db> Scope<'db> { } } -pub fn resolver_for_expr( - db: &dyn DefDatabase, - owner: DefWithBodyId, - expr_id: ExprId, -) -> Resolver<'_> { - let r = owner.resolver(db); - let scopes = db.expr_scopes(owner); - let scope_id = scopes.scope_for(expr_id); - resolver_for_scope_(db, scopes, scope_id, r, owner) -} - pub fn resolver_for_scope( db: &dyn DefDatabase, owner: DefWithBodyId, diff --git a/src/tools/rust-analyzer/crates/hir-def/src/signatures.rs b/src/tools/rust-analyzer/crates/hir-def/src/signatures.rs index 1958eb6c6a1..92e610b36ac 100644 --- a/src/tools/rust-analyzer/crates/hir-def/src/signatures.rs +++ b/src/tools/rust-analyzer/crates/hir-def/src/signatures.rs @@ -779,14 +779,10 @@ impl VariantFields { Arc::new(VariantFields { fields, store: Arc::new(store), shape }), Arc::new(source_map), ), - None => ( - Arc::new(VariantFields { - fields: Arena::default(), - store: ExpressionStore::empty_singleton(), - shape, - }), - ExpressionStoreSourceMap::empty_singleton(), - ), + None => { + let (store, source_map) = ExpressionStore::empty_singleton(); + (Arc::new(VariantFields { fields: Arena::default(), store, shape }), source_map) + } } } @@ -878,7 +874,7 @@ fn lower_fields<Field: ast::HasAttrs + ast::HasVisibility>( idx += 1; } Err(cfg) => { - col.source_map.diagnostics.push( + col.store.diagnostics.push( crate::expr_store::ExpressionStoreDiagnostics::InactiveCode { node: InFile::new(fields.file_id, SyntaxNodePtr::new(field.syntax())), cfg, @@ -891,9 +887,9 @@ fn lower_fields<Field: ast::HasAttrs + ast::HasVisibility>( if !has_fields { return None; } - let store = col.store.finish(); + let (store, source_map) = col.store.finish(); arena.shrink_to_fit(); - Some((arena, store, col.source_map)) + Some((arena, store, source_map)) } #[derive(Debug, PartialEq, Eq)] @@ -980,7 +976,7 @@ impl EnumVariants { if !matches!(variant.shape, FieldsShape::Unit) { let body = db.body(v.into()); // A variant with explicit discriminant - if body.exprs[body.body_expr] != crate::hir::Expr::Missing { + if !matches!(body[body.body_expr], crate::hir::Expr::Missing) { return false; } } diff --git a/src/tools/rust-analyzer/crates/hir-expand/src/builtin/fn_macro.rs b/src/tools/rust-analyzer/crates/hir-expand/src/builtin/fn_macro.rs index 800b40a9e7e..60fbc660652 100644 --- a/src/tools/rust-analyzer/crates/hir-expand/src/builtin/fn_macro.rs +++ b/src/tools/rust-analyzer/crates/hir-expand/src/builtin/fn_macro.rs @@ -125,8 +125,8 @@ register_builtin! { (assert, Assert) => assert_expand, (stringify, Stringify) => stringify_expand, (asm, Asm) => asm_expand, - (global_asm, GlobalAsm) => asm_expand, - (naked_asm, NakedAsm) => asm_expand, + (global_asm, GlobalAsm) => global_asm_expand, + (naked_asm, NakedAsm) => naked_asm_expand, (cfg, Cfg) => cfg_expand, (core_panic, CorePanic) => panic_expand, (std_panic, StdPanic) => panic_expand, @@ -325,6 +325,36 @@ fn asm_expand( ExpandResult::ok(expanded) } +fn global_asm_expand( + _db: &dyn ExpandDatabase, + _id: MacroCallId, + tt: &tt::TopSubtree, + span: Span, +) -> ExpandResult<tt::TopSubtree> { + let mut tt = tt.clone(); + tt.top_subtree_delimiter_mut().kind = tt::DelimiterKind::Parenthesis; + let pound = mk_pound(span); + let expanded = quote! {span => + builtin #pound global_asm #tt + }; + ExpandResult::ok(expanded) +} + +fn naked_asm_expand( + _db: &dyn ExpandDatabase, + _id: MacroCallId, + tt: &tt::TopSubtree, + span: Span, +) -> ExpandResult<tt::TopSubtree> { + let mut tt = tt.clone(); + tt.top_subtree_delimiter_mut().kind = tt::DelimiterKind::Parenthesis; + let pound = mk_pound(span); + let expanded = quote! {span => + builtin #pound naked_asm #tt + }; + ExpandResult::ok(expanded) +} + fn cfg_expand( db: &dyn ExpandDatabase, id: MacroCallId, diff --git a/src/tools/rust-analyzer/crates/hir-expand/src/builtin/quote.rs b/src/tools/rust-analyzer/crates/hir-expand/src/builtin/quote.rs index d5874f829ba..70c38d4d7c7 100644 --- a/src/tools/rust-analyzer/crates/hir-expand/src/builtin/quote.rs +++ b/src/tools/rust-analyzer/crates/hir-expand/src/builtin/quote.rs @@ -129,7 +129,7 @@ macro_rules! quote { } } } -pub(super) use quote; +pub use quote; pub trait ToTokenTree { fn to_tokens(self, span: Span, builder: &mut TopSubtreeBuilder); diff --git a/src/tools/rust-analyzer/crates/hir-expand/src/name.rs b/src/tools/rust-analyzer/crates/hir-expand/src/name.rs index 679f61112ad..217d991d110 100644 --- a/src/tools/rust-analyzer/crates/hir-expand/src/name.rs +++ b/src/tools/rust-analyzer/crates/hir-expand/src/name.rs @@ -179,10 +179,9 @@ impl Name { self.symbol.as_str() } - #[inline] pub fn display<'a>( &'a self, - db: &dyn salsa::Database, + db: &dyn crate::db::ExpandDatabase, edition: Edition, ) -> impl fmt::Display + 'a { _ = db; diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/consteval.rs b/src/tools/rust-analyzer/crates/hir-ty/src/consteval.rs index 24530a5f67c..14b9cd203f6 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/consteval.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/consteval.rs @@ -281,7 +281,7 @@ pub(crate) fn const_eval_discriminant_variant( let def = variant_id.into(); let body = db.body(def); let loc = variant_id.lookup(db); - if body.exprs[body.body_expr] == Expr::Missing { + if matches!(body[body.body_expr], Expr::Missing) { let prev_idx = loc.index.checked_sub(1); let value = match prev_idx { Some(prev_idx) => { @@ -334,7 +334,7 @@ pub(crate) fn eval_to_const( // Type checking clousres need an isolated body (See the above FIXME). Bail out early to prevent panic. return unknown_const(infer[expr].clone()); } - if let Expr::Path(p) = &ctx.body.exprs[expr] { + if let Expr::Path(p) = &ctx.body[expr] { let resolver = &ctx.resolver; if let Some(c) = path_to_const(db, resolver, p, mode, || ctx.generics(), debruijn, infer[expr].clone()) diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/db.rs b/src/tools/rust-analyzer/crates/hir-ty/src/db.rs index 5d3be07f3db..b3d46845c44 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/db.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/db.rs @@ -273,8 +273,9 @@ pub trait HirDatabase: DefDatabase + std::fmt::Debug { #[salsa::invoke(crate::variance::variances_of)] #[salsa::cycle( - cycle_fn = crate::variance::variances_of_cycle_fn, - cycle_initial = crate::variance::variances_of_cycle_initial, + // cycle_fn = crate::variance::variances_of_cycle_fn, + // cycle_initial = crate::variance::variances_of_cycle_initial, + cycle_result = crate::variance::variances_of_cycle_initial, )] fn variances_of(&self, def: GenericDefId) -> Option<Arc<[crate::variance::Variance]>>; 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 9c0f8f40080..40fe3073cf2 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 @@ -226,11 +226,10 @@ impl<'a> DeclValidator<'a> { let body = self.db.body(func.into()); let edition = self.edition(func); let mut pats_replacements = body - .pats - .iter() + .pats() .filter_map(|(pat_id, pat)| match pat { Pat::Bind { id, .. } => { - let bind_name = &body.bindings[*id].name; + let bind_name = &body[*id].name; let mut suggested_text = to_lower_snake_case(bind_name.as_str())?; if is_raw_identifier(&suggested_text, edition) { suggested_text.insert_str(0, "r#"); diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/expr.rs b/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/expr.rs index 5d56957be6d..5ae6bf6dffd 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/expr.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/expr.rs @@ -101,7 +101,7 @@ impl ExprValidator { self.check_for_trailing_return(body.body_expr, &body); } - for (id, expr) in body.exprs.iter() { + for (id, expr) in body.exprs() { if let Some((variant, missed_fields, true)) = record_literal_missing_fields(db, &self.infer, id, expr) { @@ -132,7 +132,7 @@ impl ExprValidator { } } - for (id, pat) in body.pats.iter() { + for (id, pat) in body.pats() { if let Some((variant, missed_fields, true)) = record_pattern_missing_fields(db, &self.infer, id, pat) { @@ -389,7 +389,7 @@ impl ExprValidator { if !self.validate_lints { return; } - match &body.exprs[body_expr] { + match &body[body_expr] { Expr::Block { statements, tail, .. } => { let last_stmt = tail.or_else(|| match statements.last()? { Statement::Expr { expr, .. } => Some(*expr), @@ -428,7 +428,7 @@ impl ExprValidator { if else_branch.is_none() { return; } - if let Expr::Block { statements, tail, .. } = &self.body.exprs[*then_branch] { + if let Expr::Block { statements, tail, .. } = &self.body[*then_branch] { let last_then_expr = tail.or_else(|| match statements.last()? { Statement::Expr { expr, .. } => Some(*expr), _ => None, 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 c3ab5aff3db..ca132fbdc45 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 @@ -150,7 +150,7 @@ impl<'a> PatCtxt<'a> { hir_def::hir::Pat::Bind { id, subpat, .. } => { let bm = self.infer.binding_modes[pat]; ty = &self.infer[id]; - let name = &self.body.bindings[id].name; + let name = &self.body[id].name; match (bm, ty.kind(Interner)) { (BindingMode::Ref(_), TyKind::Ref(.., rty)) => ty = rty, (BindingMode::Ref(_), _) => { diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/unsafe_check.rs b/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/unsafe_check.rs index 20cf3c78115..f6ad3c7aae2 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/unsafe_check.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/unsafe_check.rs @@ -7,7 +7,7 @@ use either::Either; use hir_def::{ AdtId, DefWithBodyId, FieldId, FunctionId, VariantId, expr_store::{Body, path::Path}, - hir::{AsmOperand, Expr, ExprId, ExprOrPatId, Pat, PatId, Statement, UnaryOp}, + hir::{AsmOperand, Expr, ExprId, ExprOrPatId, InlineAsmKind, Pat, PatId, Statement, UnaryOp}, resolver::{HasResolver, ResolveValueResult, Resolver, ValueNs}, signatures::StaticFlags, type_ref::Rawness, @@ -217,7 +217,7 @@ impl<'db> UnsafeVisitor<'db> { } fn walk_pat(&mut self, current: PatId) { - let pat = &self.body.pats[current]; + let pat = &self.body[current]; if self.inside_union_destructure { match pat { @@ -264,7 +264,7 @@ impl<'db> UnsafeVisitor<'db> { } fn walk_expr(&mut self, current: ExprId) { - let expr = &self.body.exprs[current]; + let expr = &self.body[current]; let inside_assignment = mem::replace(&mut self.inside_assignment, false); match expr { &Expr::Call { callee, .. } => { @@ -284,7 +284,7 @@ impl<'db> UnsafeVisitor<'db> { self.resolver.reset_to_guard(guard); } Expr::Ref { expr, rawness: Rawness::RawPtr, mutability: _ } => { - match self.body.exprs[*expr] { + match self.body[*expr] { // Do not report unsafe for `addr_of[_mut]!(EXTERN_OR_MUT_STATIC)`, // see https://github.com/rust-lang/rust/pull/125834. Expr::Path(_) => return, @@ -315,7 +315,12 @@ impl<'db> UnsafeVisitor<'db> { self.inside_assignment = old_inside_assignment; } Expr::InlineAsm(asm) => { - self.on_unsafe_op(current.into(), UnsafetyReason::InlineAsm); + if asm.kind == InlineAsmKind::Asm { + // `naked_asm!()` requires `unsafe` on the attribute (`#[unsafe(naked)]`), + // and `global_asm!()` doesn't require it at all. + self.on_unsafe_op(current.into(), UnsafetyReason::InlineAsm); + } + asm.operands.iter().for_each(|(_, op)| match op { AsmOperand::In { expr, .. } | AsmOperand::Out { expr: Some(expr), .. } diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/display.rs b/src/tools/rust-analyzer/crates/hir-ty/src/display.rs index 810fe76f231..b3760e3a382 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/display.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/display.rs @@ -795,6 +795,14 @@ fn render_const_scalar( let Some(bytes) = memory_map.get(addr, size_one * count) else { return f.write_str("<ref-data-not-available>"); }; + let expected_len = count * size_one; + if bytes.len() < expected_len { + never!( + "Memory map size is too small. Expected {expected_len}, got {}", + bytes.len(), + ); + return f.write_str("<layout-error>"); + } f.write_str("&[")?; let mut first = true; for i in 0..count { @@ -2328,6 +2336,7 @@ impl HirDisplayWithExpressionStore for TypeBound { store[*path].hir_fmt(f, store) } TypeBound::Use(args) => { + write!(f, "use<")?; let edition = f.edition(); let last = args.len().saturating_sub(1); for (idx, arg) in args.iter().enumerate() { diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/infer/mutability.rs b/src/tools/rust-analyzer/crates/hir-ty/src/infer/mutability.rs index d2eaf212365..3f7eba9dd18 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/infer/mutability.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/infer/mutability.rs @@ -273,7 +273,7 @@ impl InferenceContext<'_> { fn pat_bound_mutability(&self, pat: PatId) -> Mutability { let mut r = Mutability::Not; self.body.walk_bindings_in_pat(pat, |b| { - if self.body.bindings[b].mode == BindingAnnotation::RefMut { + if self.body[b].mode == BindingAnnotation::RefMut { r = Mutability::Mut; } }); 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 99d3b5c7a84..18288b718f7 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 @@ -459,7 +459,7 @@ impl InferenceContext<'_> { expected: &Ty, decl: Option<DeclContext>, ) -> Ty { - let Binding { mode, .. } = self.body.bindings[binding]; + let Binding { mode, .. } = self.body[binding]; let mode = if mode == BindingAnnotation::Unannotated { default_bm } else { @@ -639,7 +639,7 @@ impl InferenceContext<'_> { pub(super) fn contains_explicit_ref_binding(body: &Body, pat_id: PatId) -> bool { let mut res = false; body.walk_pats(pat_id, &mut |pat| { - res |= matches!(body[pat], Pat::Bind { id, .. } if body.bindings[id].mode == BindingAnnotation::Ref); + res |= matches!(body[pat], Pat::Bind { id, .. } if body[id].mode == BindingAnnotation::Ref); }); res } diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/layout/target.rs b/src/tools/rust-analyzer/crates/hir-ty/src/layout/target.rs index 88c33ecccad..82d0ed4f194 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/layout/target.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/layout/target.rs @@ -2,7 +2,7 @@ use base_db::Crate; use hir_def::layout::TargetDataLayout; -use rustc_abi::{AlignFromBytesError, TargetDataLayoutErrors, AddressSpace}; +use rustc_abi::{AddressSpace, AlignFromBytesError, TargetDataLayoutErrors}; use triomphe::Arc; use crate::db::HirDatabase; diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/layout/tests.rs b/src/tools/rust-analyzer/crates/hir-ty/src/layout/tests.rs index cc7d74f4fb0..b3bc226ec93 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/layout/tests.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/layout/tests.rs @@ -119,8 +119,7 @@ fn eval_expr( .unwrap(); let hir_body = db.body(function_id.into()); let b = hir_body - .bindings - .iter() + .bindings() .find(|x| x.1.name.display_no_db(file_id.edition(&db)).to_smolstr() == "goal") .unwrap() .0; diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/lower/path.rs b/src/tools/rust-analyzer/crates/hir-ty/src/lower/path.rs index 06686b6a164..5c06234fa07 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/lower/path.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/lower/path.rs @@ -1018,8 +1018,12 @@ fn check_generic_args_len( } let lifetime_args_len = def_generics.len_lifetimes_self(); - if provided_lifetimes_count == 0 && lifetime_args_len > 0 && !lowering_assoc_type_generics { - // In generic associated types, we never allow inferring the lifetimes. + if provided_lifetimes_count == 0 + && lifetime_args_len > 0 + && (!lowering_assoc_type_generics || infer_args) + { + // In generic associated types, we never allow inferring the lifetimes, but only in type context, that is + // when `infer_args == false`. In expression/pattern context we always allow inferring them, even for GATs. match lifetime_elision { &LifetimeElisionKind::AnonymousCreateParameter { report_in_path } => { ctx.report_elided_lifetimes_in_path(def, lifetime_args_len as u32, report_in_path); 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 bf80ed7967a..482b420279c 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir.rs @@ -1212,10 +1212,9 @@ impl MirSpan { match *self { MirSpan::ExprId(expr) => matches!(body[expr], Expr::Ref { .. }), // FIXME: Figure out if this is correct wrt. match ergonomics. - MirSpan::BindingId(binding) => matches!( - body.bindings[binding].mode, - BindingAnnotation::Ref | BindingAnnotation::RefMut - ), + MirSpan::BindingId(binding) => { + matches!(body[binding].mode, BindingAnnotation::Ref | BindingAnnotation::RefMut) + } MirSpan::PatId(_) | MirSpan::SelfParam | MirSpan::Unknown => false, } } 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 55fada14363..9a97bd6dbe2 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 @@ -31,8 +31,8 @@ use syntax::{SyntaxNodePtr, TextRange}; use triomphe::Arc; use crate::{ - CallableDefId, ClosureId, ComplexMemoryMap, Const, ConstData, ConstScalar, FnDefId, Interner, - MemoryMap, Substitution, ToChalk, TraitEnvironment, Ty, TyBuilder, TyExt, TyKind, + AliasTy, CallableDefId, ClosureId, ComplexMemoryMap, Const, ConstData, ConstScalar, FnDefId, + Interner, MemoryMap, Substitution, ToChalk, TraitEnvironment, Ty, TyBuilder, TyExt, TyKind, consteval::{ConstEvalError, intern_const_scalar, try_const_usize}, db::{HirDatabase, InternedClosure}, display::{ClosureStyle, DisplayTarget, HirDisplay}, @@ -2195,7 +2195,7 @@ impl Evaluator<'_> { } } } - chalk_ir::TyKind::Array(inner, len) => { + TyKind::Array(inner, len) => { let len = match try_const_usize(this.db, len) { Some(it) => it as usize, None => not_supported!("non evaluatable array len in patching addresses"), @@ -2213,7 +2213,7 @@ impl Evaluator<'_> { )?; } } - chalk_ir::TyKind::Tuple(_, subst) => { + TyKind::Tuple(_, subst) => { let layout = this.layout(ty)?; for (id, ty) in subst.iter(Interner).enumerate() { let ty = ty.assert_ty_ref(Interner); // Tuple only has type argument @@ -2229,7 +2229,7 @@ impl Evaluator<'_> { )?; } } - chalk_ir::TyKind::Adt(adt, subst) => match adt.0 { + TyKind::Adt(adt, subst) => match adt.0 { AdtId::StructId(s) => { let data = s.fields(this.db); let layout = this.layout(ty)?; @@ -2280,6 +2280,10 @@ impl Evaluator<'_> { } AdtId::UnionId(_) => (), }, + TyKind::Alias(AliasTy::Projection(proj)) => { + let ty = this.db.normalize_projection(proj.clone(), this.trait_env.clone()); + rec(this, bytes, &ty, locals, mm, stack_depth_limit - 1)?; + } _ => (), } Ok(()) 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 845d6b8eae1..07d81472729 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 @@ -321,7 +321,7 @@ impl<'ctx> MirLowerCtx<'ctx> { current: BasicBlockId, ) -> Result<Option<(Operand, BasicBlockId)>> { if !self.has_adjustments(expr_id) { - if let Expr::Literal(l) = &self.body.exprs[expr_id] { + if let Expr::Literal(l) = &self.body[expr_id] { let ty = self.expr_ty_without_adjust(expr_id); return Ok(Some((self.lower_literal_to_operand(ty, l)?, current))); } @@ -411,7 +411,7 @@ impl<'ctx> MirLowerCtx<'ctx> { place: Place, mut current: BasicBlockId, ) -> Result<Option<BasicBlockId>> { - match &self.body.exprs[expr_id] { + match &self.body[expr_id] { Expr::OffsetOf(_) => { not_supported!("builtin#offset_of") } @@ -1374,7 +1374,7 @@ impl<'ctx> MirLowerCtx<'ctx> { } fn lower_literal_or_const_to_operand(&mut self, ty: Ty, loc: &ExprId) -> Result<Operand> { - match &self.body.exprs[*loc] { + match &self.body[*loc] { Expr::Literal(l) => self.lower_literal_to_operand(ty, l), Expr::Path(c) => { let owner = self.owner; @@ -1850,7 +1850,7 @@ impl<'ctx> MirLowerCtx<'ctx> { self.drop_scopes.last_mut().unwrap().locals.push(local_id); if let Pat::Bind { id, subpat: None } = self.body[it] { if matches!( - self.body.bindings[id].mode, + self.body[id].mode, BindingAnnotation::Unannotated | BindingAnnotation::Mutable ) { self.result.binding_locals.insert(id, local_id); @@ -1859,7 +1859,7 @@ impl<'ctx> MirLowerCtx<'ctx> { local_id })); // and then rest of bindings - for (id, _) in self.body.bindings.iter() { + for (id, _) in self.body.bindings() { if !pick_binding(id) { continue; } @@ -2126,7 +2126,7 @@ pub fn mir_body_for_closure_query( .result .binding_locals .into_iter() - .filter(|it| ctx.body.binding_owners.get(&it.0).copied() == Some(expr)) + .filter(|it| ctx.body.binding_owner(it.0) == Some(expr)) .collect(); if let Some(err) = err { return Err(MirLowerError::UnresolvedUpvar(err)); @@ -2191,7 +2191,7 @@ pub fn lower_to_mir( // 0 is return local ctx.result.locals.alloc(Local { ty: ctx.expr_ty_after_adjustments(root_expr) }); let binding_picker = |b: BindingId| { - let owner = ctx.body.binding_owners.get(&b).copied(); + let owner = ctx.body.binding_owner(b); if root_expr == body.body_expr { owner.is_none() } else { owner == Some(root_expr) } }; // 1 to param_len is for params diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower/as_place.rs b/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower/as_place.rs index e7bffead931..e074c2d558e 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower/as_place.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/mir/lower/as_place.rs @@ -133,7 +133,7 @@ impl MirLowerCtx<'_> { } this.lower_expr_to_some_place_without_adjust(expr_id, current) }; - match &self.body.exprs[expr_id] { + match &self.body[expr_id] { Expr::Path(p) => { let resolver_guard = self.resolver.update_to_inner_scope(self.db, self.owner, expr_id); 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 61c0685c48a..3325226b1d3 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 @@ -130,7 +130,7 @@ impl MirLowerCtx<'_> { .collect::<Vec<_>>() .into(), ); - Ok(match &self.body.pats[pattern] { + Ok(match &self.body[pattern] { Pat::Missing => return Err(MirLowerError::IncompletePattern), Pat::Wild => (current, current_else), Pat::Tuple { args, ellipsis } => { @@ -436,7 +436,7 @@ impl MirLowerCtx<'_> { (next, Some(else_target)) } }, - Pat::Lit(l) => match &self.body.exprs[*l] { + Pat::Lit(l) => match &self.body[*l] { Expr::Literal(l) => { if mode == MatchingMode::Check { let c = self.lower_literal_to_operand(self.infer[pattern].clone(), l)?; 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 78a69cf4509..aad54f88438 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 @@ -219,7 +219,7 @@ impl<'a> MirPrettyCtx<'a> { fn local_name(&self, local: LocalId) -> LocalName { match self.local_to_binding.get(local) { - Some(b) => LocalName::Binding(self.hir_body.bindings[*b].name.clone(), local), + Some(b) => LocalName::Binding(self.hir_body[*b].name.clone(), local), None => LocalName::Unknown(local), } } 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 79754bc8a09..9605a0b4124 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/tests.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/tests.rs @@ -168,7 +168,7 @@ fn check_impl( let inference_result = db.infer(def); for (pat, mut ty) in inference_result.type_of_pat.iter() { - if let Pat::Bind { id, .. } = body.pats[pat] { + if let Pat::Bind { id, .. } = body[pat] { ty = &inference_result.type_of_binding[id]; } let node = match pat_node(&body_source_map, pat, &db) { @@ -316,7 +316,7 @@ fn infer_with_mismatches(content: &str, include_mismatches: bool) -> String { } for (pat, mut ty) in inference_result.type_of_pat.iter() { - if let Pat::Bind { id, .. } = body.pats[pat] { + if let Pat::Bind { id, .. } = body[pat] { ty = &inference_result.type_of_binding[id]; } let node = match body_source_map.pat_syntax(pat) { diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/variance.rs b/src/tools/rust-analyzer/crates/hir-ty/src/variance.rs index 87d9df611bd..08a215fecf6 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/variance.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/variance.rs @@ -54,14 +54,14 @@ pub(crate) fn variances_of(db: &dyn HirDatabase, def: GenericDefId) -> Option<Ar variances.is_empty().not().then(|| Arc::from_iter(variances)) } -pub(crate) fn variances_of_cycle_fn( - _db: &dyn HirDatabase, - _result: &Option<Arc<[Variance]>>, - _count: u32, - _def: GenericDefId, -) -> salsa::CycleRecoveryAction<Option<Arc<[Variance]>>> { - salsa::CycleRecoveryAction::Iterate -} +// pub(crate) fn variances_of_cycle_fn( +// _db: &dyn HirDatabase, +// _result: &Option<Arc<[Variance]>>, +// _count: u32, +// _def: GenericDefId, +// ) -> salsa::CycleRecoveryAction<Option<Arc<[Variance]>>> { +// salsa::CycleRecoveryAction::Iterate +// } pub(crate) fn variances_of_cycle_initial( db: &dyn HirDatabase, @@ -965,7 +965,7 @@ struct S3<T>(S<T, T>); struct FixedPoint<T, U, V>(&'static FixedPoint<(), T, U>, V); "#, expect![[r#" - FixedPoint[T: covariant, U: covariant, V: covariant] + FixedPoint[T: bivariant, U: bivariant, V: bivariant] "#]], ); } diff --git a/src/tools/rust-analyzer/crates/hir/src/lib.rs b/src/tools/rust-analyzer/crates/hir/src/lib.rs index 5c6f622e6c3..1b2b76999f7 100644 --- a/src/tools/rust-analyzer/crates/hir/src/lib.rs +++ b/src/tools/rust-analyzer/crates/hir/src/lib.rs @@ -2036,7 +2036,7 @@ impl DefWithBody { ) } let mol = &borrowck_result.mutability_of_locals; - for (binding_id, binding_data) in body.bindings.iter() { + for (binding_id, binding_data) in body.bindings() { if binding_data.problems.is_some() { // We should report specific diagnostics for these problems, not `need-mut` and `unused-mut`. continue; @@ -3222,7 +3222,8 @@ impl Macro { } } - pub fn is_asm_or_global_asm(&self, db: &dyn HirDatabase) -> bool { + /// Is this `asm!()`, or a variant of it (e.g. `global_asm!()`)? + pub fn is_asm_like(&self, db: &dyn HirDatabase) -> bool { match self.id { MacroId::Macro2Id(it) => { matches!(it.lookup(db).expander, MacroExpander::BuiltIn(m) if m.is_asm()) diff --git a/src/tools/rust-analyzer/crates/hir/src/semantics.rs b/src/tools/rust-analyzer/crates/hir/src/semantics.rs index 247bb693983..adba59236a4 100644 --- a/src/tools/rust-analyzer/crates/hir/src/semantics.rs +++ b/src/tools/rust-analyzer/crates/hir/src/semantics.rs @@ -677,8 +677,7 @@ impl<'db> SemanticsImpl<'db> { pub fn rename_conflicts(&self, to_be_renamed: &Local, new_name: &Name) -> Vec<Local> { let body = self.db.body(to_be_renamed.parent); let resolver = to_be_renamed.parent.resolver(self.db); - let starting_expr = - body.binding_owners.get(&to_be_renamed.binding_id).copied().unwrap_or(body.body_expr); + let starting_expr = body.binding_owner(to_be_renamed.binding_id).unwrap_or(body.body_expr); let mut visitor = RenameConflictsVisitor { body: &body, conflicts: FxHashSet::default(), @@ -1776,7 +1775,7 @@ impl<'db> SemanticsImpl<'db> { pub fn is_unsafe_macro_call(&self, macro_call: &ast::MacroCall) -> bool { let Some(mac) = self.resolve_macro_call(macro_call) else { return false }; - if mac.is_asm_or_global_asm(self.db) { + if mac.is_asm_like(self.db) { return true; } 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 0662bfddcf8..ecc6e5f3d03 100644 --- a/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs +++ b/src/tools/rust-analyzer/crates/hir/src/source_analyzer.rs @@ -242,11 +242,7 @@ impl<'db> SourceAnalyzer<'db> { fn binding_id_of_pat(&self, pat: &ast::IdentPat) -> Option<BindingId> { let pat_id = self.pat_id(&pat.clone().into())?; - if let Pat::Bind { id, .. } = self.store()?.pats[pat_id.as_pat()?] { - Some(id) - } else { - None - } + if let Pat::Bind { id, .. } = self.store()?[pat_id.as_pat()?] { Some(id) } else { None } } pub(crate) fn expr_adjustments(&self, expr: &ast::Expr) -> Option<&[Adjustment]> { @@ -995,7 +991,7 @@ impl<'db> SourceAnalyzer<'db> { let parent_hir_path = path .parent_path() .and_then(|p| collector.lower_path(p, &mut ExprCollector::impl_trait_error_allocator)); - let store = collector.store.finish(); + let (store, _) = collector.store.finish(); // Case where path is a qualifier of a use tree, e.g. foo::bar::{Baz, Qux} where we are // trying to resolve foo::bar. @@ -1204,7 +1200,7 @@ impl<'db> SourceAnalyzer<'db> { let mut collector = ExprCollector::new(db, self.resolver.module(), self.file_id); let hir_path = collector.lower_path(path.clone(), &mut ExprCollector::impl_trait_error_allocator)?; - let store = collector.store.finish(); + let (store, _) = collector.store.finish(); Some(resolve_hir_path_( db, &self.resolver, @@ -1439,9 +1435,11 @@ fn scope_for( ) -> Option<ScopeId> { node.ancestors_with_macros(db) .take_while(|it| { - !ast::Item::can_cast(it.kind()) - || ast::MacroCall::can_cast(it.kind()) - || ast::Use::can_cast(it.kind()) + let kind = it.kind(); + !ast::Item::can_cast(kind) + || ast::MacroCall::can_cast(kind) + || ast::Use::can_cast(kind) + || ast::AsmExpr::can_cast(kind) }) .filter_map(|it| it.map(ast::Expr::cast).transpose()) .filter_map(|it| source_map.node_expr(it.as_ref())?.as_expr()) diff --git a/src/tools/rust-analyzer/crates/hir/src/symbols.rs b/src/tools/rust-analyzer/crates/hir/src/symbols.rs index 756650891d4..dca10193e29 100644 --- a/src/tools/rust-analyzer/crates/hir/src/symbols.rs +++ b/src/tools/rust-analyzer/crates/hir/src/symbols.rs @@ -125,6 +125,13 @@ impl<'a> SymbolCollector<'a> { } ModuleDefId::AdtId(AdtId::EnumId(id)) => { this.push_decl(id, name, false, None); + let enum_name = this.db.enum_signature(id).name.as_str().to_smolstr(); + this.with_container_name(Some(enum_name), |this| { + let variants = id.enum_variants(this.db); + for (variant_id, variant_name, _) in &variants.variants { + this.push_decl(*variant_id, variant_name, true, None); + } + }); } ModuleDefId::AdtId(AdtId::UnionId(id)) => { this.push_decl(id, name, false, None); diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_match_to_let_else.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_match_to_let_else.rs index efcbcef00e9..9126e869b9a 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_match_to_let_else.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_match_to_let_else.rs @@ -1,8 +1,8 @@ use ide_db::defs::{Definition, NameRefClass}; use syntax::{ AstNode, SyntaxNode, - ast::{self, HasName, Name}, - ted, + ast::{self, HasName, Name, syntax_factory::SyntaxFactory}, + syntax_editor::SyntaxEditor, }; use crate::{ @@ -121,34 +121,36 @@ fn find_extracted_variable(ctx: &AssistContext<'_>, arm: &ast::MatchArm) -> Opti // Rename `extracted` with `binding` in `pat`. fn rename_variable(pat: &ast::Pat, extracted: &[Name], binding: ast::Pat) -> SyntaxNode { - let syntax = pat.syntax().clone_for_update(); + let syntax = pat.syntax().clone_subtree(); + let mut editor = SyntaxEditor::new(syntax.clone()); + let make = SyntaxFactory::with_mappings(); let extracted = extracted .iter() - .map(|e| syntax.covering_element(e.syntax().text_range())) + .map(|e| e.syntax().text_range() - pat.syntax().text_range().start()) + .map(|r| syntax.covering_element(r)) .collect::<Vec<_>>(); for extracted_syntax in extracted { // If `extracted` variable is a record field, we should rename it to `binding`, // otherwise we just need to replace `extracted` with `binding`. - if let Some(record_pat_field) = extracted_syntax.ancestors().find_map(ast::RecordPatField::cast) { if let Some(name_ref) = record_pat_field.field_name() { - ted::replace( + editor.replace( record_pat_field.syntax(), - ast::make::record_pat_field( - ast::make::name_ref(&name_ref.text()), - binding.clone(), + make.record_pat_field( + make.name_ref(&name_ref.text()), + binding.clone_for_update(), ) - .syntax() - .clone_for_update(), + .syntax(), ); } } else { - ted::replace(extracted_syntax, binding.clone().syntax().clone_for_update()); + editor.replace(extracted_syntax, binding.syntax().clone_for_update()); } } - syntax + editor.add_mappings(make.finish_with_mappings()); + editor.finish().new_root().clone() } #[cfg(test)] diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_named_struct_to_tuple_struct.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_named_struct_to_tuple_struct.rs index 32c4ae2e869..8d27574eb2c 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_named_struct_to_tuple_struct.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/convert_named_struct_to_tuple_struct.rs @@ -4,7 +4,8 @@ use itertools::Itertools; use syntax::{ SyntaxKind, ast::{self, AstNode, HasAttrs, HasGenericParams, HasVisibility}, - match_ast, ted, + match_ast, + syntax_editor::{Position, SyntaxEditor}, }; use crate::{AssistContext, AssistId, Assists, assist_context::SourceChangeBuilder}; @@ -97,11 +98,14 @@ fn edit_struct_def( // Note that we don't need to consider macro files in this function because this is // currently not triggered for struct definitions inside macro calls. let tuple_fields = record_fields.fields().filter_map(|f| { - let field = ast::make::tuple_field(f.visibility(), f.ty()?).clone_for_update(); - ted::insert_all( - ted::Position::first_child_of(field.syntax()), + let field = ast::make::tuple_field(f.visibility(), f.ty()?); + let mut editor = SyntaxEditor::new(field.syntax().clone()); + editor.insert_all( + Position::first_child_of(field.syntax()), f.attrs().map(|attr| attr.syntax().clone_subtree().clone_for_update().into()).collect(), ); + let field_syntax = editor.finish().new_root().clone(); + let field = ast::TupleField::cast(field_syntax)?; Some(field) }); let tuple_fields = ast::make::tuple_field_list(tuple_fields); @@ -1086,8 +1090,7 @@ pub struct $0Foo { } "#, r#" -pub struct Foo(#[my_custom_attr] -u32); +pub struct Foo(#[my_custom_attr]u32); "#, ); } diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_default_from_new.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_default_from_new.rs index 79a78ab3698..47233fb399d 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_default_from_new.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_default_from_new.rs @@ -2,7 +2,7 @@ use ide_db::famous_defs::FamousDefs; use stdx::format_to; use syntax::{ AstNode, - ast::{self, HasGenericParams, HasName, Impl, make}, + ast::{self, HasGenericParams, HasName, HasTypeBounds, Impl, make}, }; use crate::{ @@ -88,20 +88,19 @@ fn generate_trait_impl_text_from_impl( let generic_params = impl_.generic_param_list().map(|generic_params| { let lifetime_params = generic_params.lifetime_params().map(ast::GenericParam::LifetimeParam); - let ty_or_const_params = generic_params.type_or_const_params().map(|param| { + let ty_or_const_params = generic_params.type_or_const_params().filter_map(|param| { // remove defaults since they can't be specified in impls - match param { + let param = match param { ast::TypeOrConstParam::Type(param) => { - let param = param.clone_for_update(); - param.remove_default(); + let param = make::type_param(param.name()?, param.type_bound_list()); ast::GenericParam::TypeParam(param) } ast::TypeOrConstParam::Const(param) => { - let param = param.clone_for_update(); - param.remove_default(); + let param = make::const_param(param.name()?, param.ty()?); ast::GenericParam::ConstParam(param) } - } + }; + Some(param) }); make::generic_param_list(itertools::chain(lifetime_params, ty_or_const_params)) diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_getter_or_setter.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_getter_or_setter.rs index c7e5e41aac4..20ee9253d37 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_getter_or_setter.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_getter_or_setter.rs @@ -294,7 +294,7 @@ fn generate_setter_from_info(info: &AssistInfo, record_field_info: &RecordFieldI let self_expr = make::ext::expr_self(); let lhs = make::expr_field(self_expr, field_name); let rhs = make::expr_path(make::ext::ident_path(field_name)); - let assign_stmt = make::expr_stmt(make::expr_assignment(lhs, rhs)); + let assign_stmt = make::expr_stmt(make::expr_assignment(lhs, rhs).into()); let body = make::block_expr([assign_stmt.into()], None); // Make the setter fn diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_impl.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_impl.rs index 2862e6d5afb..14601ca0207 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_impl.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_impl.rs @@ -1,14 +1,14 @@ use syntax::{ ast::{self, AstNode, HasName, edit_in_place::Indent, make}, - ted, + syntax_editor::{Position, SyntaxEditor}, }; use crate::{AssistContext, AssistId, Assists, utils}; -fn insert_impl(impl_: ast::Impl, nominal: &ast::Adt) { +fn insert_impl(editor: &mut SyntaxEditor, impl_: &ast::Impl, nominal: &ast::Adt) { let indent = nominal.indent_level(); - ted::insert_all_raw( - ted::Position::after(nominal.syntax()), + editor.insert_all( + Position::after(nominal.syntax()), vec![ // Add a blank line after the ADT, and indentation for the impl to match the ADT make::tokens::whitespace(&format!("\n\n{indent}")).into(), @@ -51,14 +51,17 @@ pub(crate) fn generate_impl(acc: &mut Assists, ctx: &AssistContext<'_>) -> Optio // Generate the impl let impl_ = utils::generate_impl(&nominal); + let mut editor = edit.make_editor(nominal.syntax()); // Add a tabstop after the left curly brace if let Some(cap) = ctx.config.snippet_cap { if let Some(l_curly) = impl_.assoc_item_list().and_then(|it| it.l_curly_token()) { - edit.add_tabstop_after_token(cap, l_curly); + let tabstop = edit.make_tabstop_after(cap); + editor.add_annotation(l_curly, tabstop); } } - insert_impl(impl_, &edit.make_mut(nominal)); + insert_impl(&mut editor, &impl_, &nominal); + edit.add_file_edits(ctx.vfs_file_id(), editor); }, ) } @@ -97,18 +100,22 @@ pub(crate) fn generate_trait_impl(acc: &mut Assists, ctx: &AssistContext<'_>) -> // Generate the impl let impl_ = utils::generate_trait_impl_intransitive(&nominal, make::ty_placeholder()); + let mut editor = edit.make_editor(nominal.syntax()); // Make the trait type a placeholder snippet if let Some(cap) = ctx.config.snippet_cap { if let Some(trait_) = impl_.trait_() { - edit.add_placeholder_snippet(cap, trait_); + let placeholder = edit.make_placeholder_snippet(cap); + editor.add_annotation(trait_.syntax(), placeholder); } if let Some(l_curly) = impl_.assoc_item_list().and_then(|it| it.l_curly_token()) { - edit.add_tabstop_after_token(cap, l_curly); + let tabstop = edit.make_tabstop_after(cap); + editor.add_annotation(l_curly, tabstop); } } - insert_impl(impl_, &edit.make_mut(nominal)); + insert_impl(&mut editor, &impl_, &nominal); + edit.add_file_edits(ctx.vfs_file_id(), editor); }, ) } 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 index bab2ccf3f33..4ddab2cfad0 100644 --- 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 @@ -1,6 +1,6 @@ -use ide_db::famous_defs::FamousDefs; +use ide_db::{famous_defs::FamousDefs, traits::resolve_target_trait}; use syntax::{ - AstNode, + AstNode, T, ast::{self, edit_in_place::Indent, make}, ted, }; @@ -32,7 +32,7 @@ use crate::{AssistContext, AssistId, Assists}; // // $0impl<T> core::ops::IndexMut<Axis> for [T; 3] { // fn index_mut(&mut self, index: Axis) -> &mut Self::Output { -// &self[index as usize] +// &mut self[index as usize] // } // } // @@ -48,36 +48,34 @@ pub(crate) fn generate_mut_trait_impl(acc: &mut Assists, ctx: &AssistContext<'_> let impl_def = ctx.find_node_at_offset::<ast::Impl>()?.clone_for_update(); let indent = impl_def.indent_level(); - let trait_ = impl_def.trait_()?; - if let ast::Type::PathType(trait_path) = trait_ { - 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; - } - } + let ast::Type::PathType(path) = impl_def.trait_()? else { + return None; + }; + let trait_name = path.path()?.segment()?.name_ref()?; + + let scope = ctx.sema.scope(impl_def.trait_()?.syntax())?; + let famous = FamousDefs(&ctx.sema, scope.krate()); + + let trait_ = resolve_target_trait(&ctx.sema, &impl_def)?; + let trait_new = get_trait_mut(&trait_, famous)?; // 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(), - ); + ted::replace(trait_name.syntax(), make::name_ref(trait_new).clone_for_update().syntax()); // index -> index_mut - let trait_method_name = impl_def + let (trait_method_name, new_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()); + .find_map(process_method_name)?; + ted::replace( + trait_method_name.syntax(), + make::name(new_trait_method_name).clone_for_update().syntax(), + ); - let type_alias = impl_def.syntax().descendants().find_map(ast::TypeAlias::cast)?; - ted::remove(type_alias.syntax()); + if let Some(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(); @@ -87,15 +85,14 @@ pub(crate) fn generate_mut_trait_impl(acc: &mut Assists, ctx: &AssistContext<'_> // &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 new_ret_type = process_ret_type(&ret_type)?; + ted::replace(ret_type.syntax(), make::ret_type(new_ret_type).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 _ = process_ref_mut(&fn_); let assoc_list = make::assoc_item_list().clone_for_update(); ted::replace(impl_def.assoc_item_list()?.syntax(), assoc_list.syntax()); @@ -104,7 +101,7 @@ pub(crate) fn generate_mut_trait_impl(acc: &mut Assists, ctx: &AssistContext<'_> let target = impl_def.syntax().text_range(); acc.add( AssistId::generate("generate_mut_trait_impl"), - "Generate `IndexMut` impl from this `Index` trait", + format!("Generate `{trait_new}` impl from this `{trait_name}` trait"), target, |edit| { edit.insert(target.start(), format!("$0{impl_def}\n\n{indent}")); @@ -112,6 +109,52 @@ pub(crate) fn generate_mut_trait_impl(acc: &mut Assists, ctx: &AssistContext<'_> ) } +fn process_ref_mut(fn_: &ast::Fn) -> Option<()> { + let expr = fn_.body()?.tail_expr()?; + match &expr { + ast::Expr::RefExpr(ref_expr) if ref_expr.mut_token().is_none() => { + ted::insert_all_raw( + ted::Position::after(ref_expr.amp_token()?), + vec![make::token(T![mut]).into(), make::tokens::whitespace(" ").into()], + ); + } + _ => {} + } + None +} + +fn get_trait_mut(apply_trait: &hir::Trait, famous: FamousDefs<'_, '_>) -> Option<&'static str> { + let trait_ = Some(apply_trait); + if trait_ == famous.core_convert_Index().as_ref() { + return Some("IndexMut"); + } + if trait_ == famous.core_convert_AsRef().as_ref() { + return Some("AsMut"); + } + if trait_ == famous.core_borrow_Borrow().as_ref() { + return Some("BorrowMut"); + } + None +} + +fn process_method_name(name: ast::Name) -> Option<(ast::Name, &'static str)> { + let new_name = match &*name.text() { + "index" => "index_mut", + "as_ref" => "as_mut", + "borrow" => "borrow_mut", + _ => return None, + }; + Some((name, new_name)) +} + +fn process_ret_type(ref_ty: &ast::RetType) -> Option<ast::Type> { + let ty = ref_ty.ty()?; + let ast::Type::RefType(ref_type) = ty else { + return None; + }; + Some(make::ty_ref(ref_type.ty()?, true)) +} + #[cfg(test)] mod tests { use crate::tests::{check_assist, check_assist_not_applicable}; @@ -139,7 +182,7 @@ 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] + &mut self[index as usize] } } @@ -188,6 +231,35 @@ impl<T> core::ops::Index<Axis> for [T; 3] where T: Copy { } "#, ); + + check_assist( + generate_mut_trait_impl, + r#" +//- minicore: as_ref +struct Foo(i32); + +impl core::convert::AsRef$0<i32> for Foo { + fn as_ref(&self) -> &i32 { + &self.0 + } +} +"#, + r#" +struct Foo(i32); + +$0impl core::convert::AsMut<i32> for Foo { + fn as_mut(&mut self) -> &mut i32 { + &mut self.0 + } +} + +impl core::convert::AsRef<i32> for Foo { + fn as_ref(&self) -> &i32 { + &self.0 + } +} +"#, + ); } #[test] @@ -287,5 +359,13 @@ pub trait Index<Idx: ?Sized> {} impl<T> Index$0<i32> for [T; 3] {} "#, ); + check_assist_not_applicable( + generate_mut_trait_impl, + r#" +pub trait AsRef<T: ?Sized> {} + +impl AsRef$0<i32> for [T; 3] {} +"#, + ); } } diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_new.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_new.rs index 4837f92f934..51c2f65e025 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_new.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_new.rs @@ -1,5 +1,6 @@ use ide_db::{ - imports::import_assets::item_for_path_search, use_trivial_constructor::use_trivial_constructor, + imports::import_assets::item_for_path_search, syntax_helpers::suggest_name::NameGenerator, + use_trivial_constructor::use_trivial_constructor, }; use syntax::{ ast::{self, AstNode, HasName, HasVisibility, StructKind, edit_in_place::Indent, make}, @@ -35,10 +36,30 @@ use crate::{ pub(crate) fn generate_new(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<()> { let strukt = ctx.find_node_at_offset::<ast::Struct>()?; - // We want to only apply this to non-union structs with named fields let field_list = match strukt.kind() { - StructKind::Record(named) => named, - _ => return None, + StructKind::Record(named) => { + named.fields().filter_map(|f| Some((f.name()?, f.ty()?))).collect::<Vec<_>>() + } + StructKind::Tuple(tuple) => { + let mut name_generator = NameGenerator::default(); + tuple + .fields() + .enumerate() + .filter_map(|(i, f)| { + let ty = f.ty()?; + let name = match name_generator.for_type( + &ctx.sema.resolve_type(&ty)?, + ctx.db(), + ctx.edition(), + ) { + Some(name) => name, + None => name_generator.suggest_name(&format!("_{i}")), + }; + Some((make::name(name.as_str()), f.ty()?)) + }) + .collect::<Vec<_>>() + } + StructKind::Unit => return None, }; // Return early if we've found an existing new fn @@ -50,11 +71,9 @@ pub(crate) fn generate_new(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option let target = strukt.syntax().text_range(); acc.add(AssistId::generate("generate_new"), "Generate `new`", target, |builder| { let trivial_constructors = field_list - .fields() - .map(|f| { - let name = f.name()?; - - let ty = ctx.sema.resolve_type(&f.ty()?)?; + .iter() + .map(|(name, ty)| { + let ty = ctx.sema.resolve_type(ty)?; let item_in_ns = hir::ItemInNs::from(hir::ModuleDef::from(ty.as_adt()?)); @@ -73,34 +92,44 @@ pub(crate) fn generate_new(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option edition, )?; - Some(make::record_expr_field(make::name_ref(&name.text()), Some(expr))) + Some((make::name_ref(&name.text()), Some(expr))) }) .collect::<Vec<_>>(); - let params = field_list.fields().enumerate().filter_map(|(i, f)| { + let params = field_list.iter().enumerate().filter_map(|(i, (name, ty))| { if trivial_constructors[i].is_none() { - let name = f.name()?; - let ty = f.ty()?; - - Some(make::param(make::ident_pat(false, false, name).into(), ty)) + Some(make::param(make::ident_pat(false, false, name.clone()).into(), ty.clone())) } else { None } }); let params = make::param_list(None, params); - let fields = field_list.fields().enumerate().filter_map(|(i, f)| { - let constructor = trivial_constructors[i].clone(); - if constructor.is_some() { + let fields = field_list.iter().enumerate().map(|(i, (name, _))| { + if let Some(constructor) = trivial_constructors[i].clone() { constructor } else { - Some(make::record_expr_field(make::name_ref(&f.name()?.text()), None)) + (make::name_ref(&name.text()), None) } }); - let fields = make::record_expr_field_list(fields); - let record_expr = make::record_expr(make::ext::ident_path("Self"), fields); - let body = make::block_expr(None, Some(record_expr.into())); + let tail_expr: ast::Expr = match strukt.kind() { + StructKind::Record(_) => { + let fields = fields.map(|(name, expr)| make::record_expr_field(name, expr)); + let fields = make::record_expr_field_list(fields); + make::record_expr(make::ext::ident_path("Self"), fields).into() + } + StructKind::Tuple(_) => { + let args = fields.map(|(arg, expr)| { + let arg = || make::expr_path(make::path_unqualified(make::path_segment(arg))); + expr.unwrap_or_else(arg) + }); + let arg_list = make::arg_list(args); + make::expr_call(make::expr_path(make::ext::ident_path("Self")), arg_list).into() + } + StructKind::Unit => unreachable!(), + }; + let body = make::block_expr(None, tail_expr.into()); let ret_type = make::ret_type(make::ty_path(make::ext::ident_path("Self"))); @@ -120,8 +149,35 @@ pub(crate) fn generate_new(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option .clone_for_update(); fn_.indent(1.into()); - // Add a tabstop before the name if let Some(cap) = ctx.config.snippet_cap { + match strukt.kind() { + StructKind::Tuple(_) => { + let struct_args = fn_ + .body() + .unwrap() + .syntax() + .descendants() + .filter(|it| syntax::ast::ArgList::can_cast(it.kind())) + .flat_map(|args| args.children()) + .filter(|it| syntax::ast::PathExpr::can_cast(it.kind())) + .enumerate() + .filter_map(|(i, node)| { + if trivial_constructors[i].is_none() { Some(node) } else { None } + }); + if let Some(fn_params) = fn_.param_list() { + for (struct_arg, fn_param) in struct_args.zip(fn_params.params()) { + if let Some(fn_pat) = fn_param.pat() { + let fn_pat = fn_pat.syntax().clone(); + builder + .add_placeholder_snippet_group(cap, vec![struct_arg, fn_pat]); + } + } + } + } + _ => {} + } + + // Add a tabstop before the name if let Some(name) = fn_.name() { builder.add_tabstop_before(cap, name); } @@ -157,7 +213,7 @@ pub(crate) fn generate_new(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option } #[cfg(test)] -mod tests { +mod record_tests { use crate::tests::{check_assist, check_assist_not_applicable, check_assist_target}; use super::*; @@ -695,3 +751,308 @@ impl<T> Source<T> { ); } } + +#[cfg(test)] +mod tuple_tests { + use crate::tests::{check_assist, check_assist_not_applicable, check_assist_target}; + + use super::*; + + #[test] + fn test_generate_new_with_zst_fields() { + check_assist( + generate_new, + r#" +struct Empty; + +struct Foo(Empty$0); +"#, + r#" +struct Empty; + +struct Foo(Empty); + +impl Foo { + fn $0new() -> Self { + Self(Empty) + } +} +"#, + ); + check_assist( + generate_new, + r#" +struct Empty; + +struct Foo(String, Empty$0); +"#, + r#" +struct Empty; + +struct Foo(String, Empty); + +impl Foo { + fn $0new(${1:_0}: String) -> Self { + Self(${1:_0}, Empty) + } +} +"#, + ); + check_assist( + generate_new, + r#" +enum Empty { Bar } + +struct Foo(Empty$0); +"#, + r#" +enum Empty { Bar } + +struct Foo(Empty); + +impl Foo { + fn $0new() -> Self { + Self(Empty::Bar) + } +} +"#, + ); + + // make sure the assist only works on unit variants + check_assist( + generate_new, + r#" +struct Empty {} + +struct Foo(Empty$0); +"#, + r#" +struct Empty {} + +struct Foo(Empty); + +impl Foo { + fn $0new(${1:empty}: Empty) -> Self { + Self(${1:empty}) + } +} +"#, + ); + check_assist( + generate_new, + r#" +enum Empty { Bar {} } + +struct Foo(Empty$0); +"#, + r#" +enum Empty { Bar {} } + +struct Foo(Empty); + +impl Foo { + fn $0new(${1:empty}: Empty) -> Self { + Self(${1:empty}) + } +} +"#, + ); + } + + #[test] + fn test_generate_new() { + check_assist( + generate_new, + r#" +struct Foo($0); +"#, + r#" +struct Foo(); + +impl Foo { + fn $0new() -> Self { + Self() + } +} +"#, + ); + check_assist( + generate_new, + r#" +struct Foo<T: Clone>($0); +"#, + r#" +struct Foo<T: Clone>(); + +impl<T: Clone> Foo<T> { + fn $0new() -> Self { + Self() + } +} +"#, + ); + check_assist( + generate_new, + r#" +struct Foo<'a, T: Foo<'a>>($0); +"#, + r#" +struct Foo<'a, T: Foo<'a>>(); + +impl<'a, T: Foo<'a>> Foo<'a, T> { + fn $0new() -> Self { + Self() + } +} +"#, + ); + check_assist( + generate_new, + r#" +struct Foo(String$0); +"#, + r#" +struct Foo(String); + +impl Foo { + fn $0new(${1:_0}: String) -> Self { + Self(${1:_0}) + } +} +"#, + ); + check_assist( + generate_new, + r#" +struct Vec<T> { }; +struct Foo(String, Vec<i32>$0); +"#, + r#" +struct Vec<T> { }; +struct Foo(String, Vec<i32>); + +impl Foo { + fn $0new(${1:_0}: String, ${2:items}: Vec<i32>) -> Self { + Self(${1:_0}, ${2:items}) + } +} +"#, + ); + } + + #[test] + fn check_that_visibility_modifiers_dont_get_brought_in() { + check_assist( + generate_new, + r#" +struct Vec<T> { }; +struct Foo(pub String, pub Vec<i32>$0); +"#, + r#" +struct Vec<T> { }; +struct Foo(pub String, pub Vec<i32>); + +impl Foo { + fn $0new(${1:_0}: String, ${2:items}: Vec<i32>) -> Self { + Self(${1:_0}, ${2:items}) + } +} +"#, + ); + } + + #[test] + fn generate_new_not_applicable_if_fn_exists() { + check_assist_not_applicable( + generate_new, + r#" +struct Foo($0); + +impl Foo { + fn new() -> Self { + Self + } +} +"#, + ); + + check_assist_not_applicable( + generate_new, + r#" +struct Foo($0); + +impl Foo { + fn New() -> Self { + Self + } +} +"#, + ); + } + + #[test] + fn generate_new_target() { + check_assist_target( + generate_new, + r#" +struct SomeThingIrrelevant; +/// Has a lifetime parameter +struct Foo<'a, T: Foo<'a>>($0); +struct EvenMoreIrrelevant; +"#, + "/// Has a lifetime parameter +struct Foo<'a, T: Foo<'a>>();", + ); + } + + #[test] + fn test_unrelated_new() { + check_assist( + generate_new, + r#" +pub struct AstId<N: AstNode> { + file_id: HirFileId, + file_ast_id: FileAstId<N>, +} + +impl<N: AstNode> AstId<N> { + pub fn new(file_id: HirFileId, file_ast_id: FileAstId<N>) -> AstId<N> { + AstId { file_id, file_ast_id } + } +} + +pub struct Source<T>(pub HirFileId,$0 pub T); + +impl<T> Source<T> { + pub fn map<F: FnOnce(T) -> U, U>(self, f: F) -> Source<U> { + Source(self.file_id, f(self.ast)) + } +} +"#, + r#" +pub struct AstId<N: AstNode> { + file_id: HirFileId, + file_ast_id: FileAstId<N>, +} + +impl<N: AstNode> AstId<N> { + pub fn new(file_id: HirFileId, file_ast_id: FileAstId<N>) -> AstId<N> { + AstId { file_id, file_ast_id } + } +} + +pub struct Source<T>(pub HirFileId, pub T); + +impl<T> Source<T> { + pub fn $0new(${1:_0}: HirFileId, ${2:_1}: T) -> Self { + Self(${1:_0}, ${2:_1}) + } + + pub fn map<F: FnOnce(T) -> U, U>(self, f: F) -> Source<U> { + Source(self.file_id, f(self.ast)) + } +} +"#, + ); + } +} diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_single_field_struct_from.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_single_field_struct_from.rs new file mode 100644 index 00000000000..4e95ceb2e85 --- /dev/null +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/generate_single_field_struct_from.rs @@ -0,0 +1,1000 @@ +use ast::make; +use hir::{HasCrate, ModuleDef, Semantics}; +use ide_db::{ + RootDatabase, famous_defs::FamousDefs, helpers::mod_path_to_ast, + imports::import_assets::item_for_path_search, use_trivial_constructor::use_trivial_constructor, +}; +use syntax::{ + TokenText, + ast::{self, AstNode, HasGenericParams, HasName, edit, edit_in_place::Indent}, +}; + +use crate::{ + AssistId, + assist_context::{AssistContext, Assists}, + utils::add_cfg_attrs_to, +}; + +// Assist: generate_single_field_struct_from +// +// Implement From for a single field structure, ignore trivial types. +// +// ``` +// # //- minicore: from, phantom_data +// use core::marker::PhantomData; +// struct $0Foo<T> { +// id: i32, +// _phantom_data: PhantomData<T>, +// } +// ``` +// -> +// ``` +// use core::marker::PhantomData; +// struct Foo<T> { +// id: i32, +// _phantom_data: PhantomData<T>, +// } +// +// impl<T> From<i32> for Foo<T> { +// fn from(id: i32) -> Self { +// Self { id, _phantom_data: PhantomData } +// } +// } +// ``` +pub(crate) fn generate_single_field_struct_from( + acc: &mut Assists, + ctx: &AssistContext<'_>, +) -> Option<()> { + let strukt_name = ctx.find_node_at_offset::<ast::Name>()?; + let adt = ast::Adt::cast(strukt_name.syntax().parent()?)?; + let ast::Adt::Struct(strukt) = adt else { + return None; + }; + + let sema = &ctx.sema; + let (names, types) = get_fields(&strukt)?; + + let module = sema.scope(strukt.syntax())?.module(); + let constructors = make_constructors(ctx, module, &types); + + if constructors.iter().filter(|expr| expr.is_none()).count() != 1 { + return None; + } + let main_field_i = constructors.iter().position(Option::is_none)?; + if from_impl_exists(&strukt, main_field_i, &ctx.sema).is_some() { + return None; + } + + let main_field_name = + names.as_ref().map_or(TokenText::borrowed("value"), |names| names[main_field_i].text()); + let main_field_ty = types[main_field_i].clone(); + + acc.add( + AssistId::generate("generate_single_field_struct_from"), + "Generate single field `From`", + strukt.syntax().text_range(), + |builder| { + let indent = strukt.indent_level(); + let ty_where_clause = strukt.where_clause(); + let type_gen_params = strukt.generic_param_list(); + let type_gen_args = type_gen_params.as_ref().map(|params| params.to_generic_args()); + let trait_gen_args = Some(make::generic_arg_list([ast::GenericArg::TypeArg( + make::type_arg(main_field_ty.clone()), + )])); + + let ty = make::ty(&strukt_name.text()); + + let constructor = + make_adt_constructor(names.as_deref(), constructors, &main_field_name); + let body = make::block_expr([], Some(constructor)); + + let fn_ = make::fn_( + None, + make::name("from"), + None, + None, + make::param_list( + None, + [make::param( + make::path_pat(make::path_from_text(&main_field_name)), + main_field_ty, + )], + ), + body, + Some(make::ret_type(make::ty("Self"))), + false, + false, + false, + false, + ) + .clone_for_update(); + + fn_.indent(1.into()); + + let impl_ = make::impl_trait( + false, + None, + trait_gen_args, + type_gen_params, + type_gen_args, + false, + make::ty("From"), + ty.clone(), + None, + ty_where_clause.map(|wc| edit::AstNodeEdit::reset_indent(&wc)), + None, + ) + .clone_for_update(); + + impl_.get_or_create_assoc_item_list().add_item(fn_.into()); + + add_cfg_attrs_to(&strukt, &impl_); + + impl_.reindent_to(indent); + + builder.insert(strukt.syntax().text_range().end(), format!("\n\n{indent}{impl_}")); + }, + ) +} + +fn make_adt_constructor( + names: Option<&[ast::Name]>, + constructors: Vec<Option<ast::Expr>>, + main_field_name: &TokenText<'_>, +) -> ast::Expr { + if let Some(names) = names { + let fields = make::record_expr_field_list(names.iter().zip(constructors).map( + |(name, initializer)| { + make::record_expr_field(make::name_ref(&name.text()), initializer) + }, + )); + make::record_expr(make::path_from_text("Self"), fields).into() + } else { + let arg_list = make::arg_list(constructors.into_iter().map(|expr| { + expr.unwrap_or_else(|| make::expr_path(make::path_from_text(main_field_name))) + })); + make::expr_call(make::expr_path(make::path_from_text("Self")), arg_list).into() + } +} + +fn make_constructors( + ctx: &AssistContext<'_>, + module: hir::Module, + types: &[ast::Type], +) -> Vec<Option<ast::Expr>> { + let (db, sema) = (ctx.db(), &ctx.sema); + types + .iter() + .map(|ty| { + let ty = sema.resolve_type(ty)?; + if ty.is_unit() { + return Some(make::expr_tuple([]).into()); + } + let item_in_ns = ModuleDef::Adt(ty.as_adt()?).into(); + let edition = module.krate().edition(db); + + let ty_path = module.find_path( + db, + item_for_path_search(db, item_in_ns)?, + ctx.config.import_path_config(), + )?; + + use_trivial_constructor(db, mod_path_to_ast(&ty_path, edition), &ty, edition) + }) + .collect() +} + +fn get_fields(strukt: &ast::Struct) -> Option<(Option<Vec<ast::Name>>, Vec<ast::Type>)> { + Some(match strukt.kind() { + ast::StructKind::Unit => return None, + ast::StructKind::Record(fields) => { + let names = fields.fields().map(|field| field.name()).collect::<Option<_>>()?; + let types = fields.fields().map(|field| field.ty()).collect::<Option<_>>()?; + (Some(names), types) + } + ast::StructKind::Tuple(fields) => { + (None, fields.fields().map(|field| field.ty()).collect::<Option<_>>()?) + } + }) +} + +fn from_impl_exists( + strukt: &ast::Struct, + main_field_i: usize, + sema: &Semantics<'_, RootDatabase>, +) -> Option<()> { + let db = sema.db; + let strukt = sema.to_def(strukt)?; + let krate = strukt.krate(db); + let from_trait = FamousDefs(sema, krate).core_convert_From()?; + let ty = strukt.fields(db).get(main_field_i)?.ty(db); + + strukt.ty(db).impls_trait(db, from_trait, &[ty]).then_some(()) +} + +#[cfg(test)] +mod tests { + use crate::tests::{check_assist, check_assist_not_applicable}; + + use super::generate_single_field_struct_from; + + #[test] + fn works() { + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo { + foo: i32, + } + "#, + r#" + struct Foo { + foo: i32, + } + + impl From<i32> for Foo { + fn from(foo: i32) -> Self { + Self { foo } + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from, phantom_data + struct $0Foo { + b1: (), + b2: core::marker::PhantomData, + foo: i32, + a1: (), + a2: core::marker::PhantomData, + } + "#, + r#" + struct Foo { + b1: (), + b2: core::marker::PhantomData, + foo: i32, + a1: (), + a2: core::marker::PhantomData, + } + + impl From<i32> for Foo { + fn from(foo: i32) -> Self { + Self { b1: (), b2: core::marker::PhantomData, foo, a1: (), a2: core::marker::PhantomData } + } + } + "#, + ); + } + + #[test] + fn cfgs() { + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + #[cfg(feature = "foo")] + #[cfg(test)] + struct $0Foo { + foo: i32, + } + "#, + r#" + #[cfg(feature = "foo")] + #[cfg(test)] + struct Foo { + foo: i32, + } + + #[cfg(feature = "foo")] + #[cfg(test)] + impl From<i32> for Foo { + fn from(foo: i32) -> Self { + Self { foo } + } + } + "#, + ); + } + + #[test] + fn indent() { + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + mod foo { + struct $0Foo { + foo: i32, + } + } + "#, + r#" + mod foo { + struct Foo { + foo: i32, + } + + impl From<i32> for Foo { + fn from(foo: i32) -> Self { + Self { foo } + } + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + mod foo { + mod bar { + struct $0Foo { + foo: i32, + } + } + } + "#, + r#" + mod foo { + mod bar { + struct Foo { + foo: i32, + } + + impl From<i32> for Foo { + fn from(foo: i32) -> Self { + Self { foo } + } + } + } + } + "#, + ); + } + + #[test] + fn where_clause_indent() { + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + mod foo { + mod bar { + trait Trait {} + struct $0Foo<T> + where + T: Trait, + { + foo: T, + } + } + } + "#, + r#" + mod foo { + mod bar { + trait Trait {} + struct Foo<T> + where + T: Trait, + { + foo: T, + } + + impl<T> From<T> for Foo<T> + where + T: Trait, + { + fn from(foo: T) -> Self { + Self { foo } + } + } + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + mod foo { + mod bar { + trait Trait<const B: bool> {} + struct $0Foo<T> + where + T: Trait<{ + true + }> + { + foo: T, + } + } + } + "#, + r#" + mod foo { + mod bar { + trait Trait<const B: bool> {} + struct Foo<T> + where + T: Trait<{ + true + }> + { + foo: T, + } + + impl<T> From<T> for Foo<T> + where + T: Trait<{ + true + }> + { + fn from(foo: T) -> Self { + Self { foo } + } + } + } + } + "#, + ); + } + + #[test] + fn generics() { + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo<T> { + foo: T, + } + "#, + r#" + struct Foo<T> { + foo: T, + } + + impl<T> From<T> for Foo<T> { + fn from(foo: T) -> Self { + Self { foo } + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo<T: Send> { + foo: T, + } + "#, + r#" + struct Foo<T: Send> { + foo: T, + } + + impl<T: Send> From<T> for Foo<T> { + fn from(foo: T) -> Self { + Self { foo } + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo<T: Send> where T: Sync,{ + foo: T, + } + "#, + r#" + struct Foo<T: Send> where T: Sync,{ + foo: T, + } + + impl<T: Send> From<T> for Foo<T> + where T: Sync, + { + fn from(foo: T) -> Self { + Self { foo } + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo<T: Send> where T: Sync { + foo: T, + } + "#, + r#" + struct Foo<T: Send> where T: Sync { + foo: T, + } + + impl<T: Send> From<T> for Foo<T> + where T: Sync + { + fn from(foo: T) -> Self { + Self { foo } + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo<T: Send> where T: Sync, Self: Send { + foo: T, + } + "#, + r#" + struct Foo<T: Send> where T: Sync, Self: Send { + foo: T, + } + + impl<T: Send> From<T> for Foo<T> + where T: Sync, Self: Send + { + fn from(foo: T) -> Self { + Self { foo } + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo<T: Send> + where T: Sync, Self: Send + { + foo: T, + } + "#, + r#" + struct Foo<T: Send> + where T: Sync, Self: Send + { + foo: T, + } + + impl<T: Send> From<T> for Foo<T> + where T: Sync, Self: Send + { + fn from(foo: T) -> Self { + Self { foo } + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo<T: Send> + where T: Sync, Self: Send, + { + foo: T, + } + "#, + r#" + struct Foo<T: Send> + where T: Sync, Self: Send, + { + foo: T, + } + + impl<T: Send> From<T> for Foo<T> + where T: Sync, Self: Send, + { + fn from(foo: T) -> Self { + Self { foo } + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo<T: Send> + where T: Sync, + Self: Send, + { + foo: T, + } + "#, + r#" + struct Foo<T: Send> + where T: Sync, + Self: Send, + { + foo: T, + } + + impl<T: Send> From<T> for Foo<T> + where T: Sync, + Self: Send, + { + fn from(foo: T) -> Self { + Self { foo } + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo<T: Send> + where + T: Sync, + Self: Send, + { + foo: T, + } + "#, + r#" + struct Foo<T: Send> + where + T: Sync, + Self: Send, + { + foo: T, + } + + impl<T: Send> From<T> for Foo<T> + where + T: Sync, + Self: Send, + { + fn from(foo: T) -> Self { + Self { foo } + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo<T: Send + Sync> + where + T: Sync, + Self: Send, + { + foo: T, + } + "#, + r#" + struct Foo<T: Send + Sync> + where + T: Sync, + Self: Send, + { + foo: T, + } + + impl<T: Send + Sync> From<T> for Foo<T> + where + T: Sync, + Self: Send, + { + fn from(foo: T) -> Self { + Self { foo } + } + } + "#, + ); + } + + #[test] + fn tuple() { + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo(i32); + "#, + r#" + struct Foo(i32); + + impl From<i32> for Foo { + fn from(value: i32) -> Self { + Self(value) + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo<T>(T); + "#, + r#" + struct Foo<T>(T); + + impl<T> From<T> for Foo<T> { + fn from(value: T) -> Self { + Self(value) + } + } + "#, + ); + } + + #[test] + fn trivial() { + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from, phantom_data + use core::marker::PhantomData; + struct $0Foo(i32, PhantomData<i32>); + "#, + r#" + use core::marker::PhantomData; + struct Foo(i32, PhantomData<i32>); + + impl From<i32> for Foo { + fn from(value: i32) -> Self { + Self(value, PhantomData) + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from, phantom_data + use core::marker::PhantomData; + struct $0Foo(i32, PhantomData<()>); + "#, + r#" + use core::marker::PhantomData; + struct Foo(i32, PhantomData<()>); + + impl From<i32> for Foo { + fn from(value: i32) -> Self { + Self(value, PhantomData) + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from, phantom_data + use core::marker::PhantomData; + struct $0Foo(PhantomData<()>, i32, PhantomData<()>); + "#, + r#" + use core::marker::PhantomData; + struct Foo(PhantomData<()>, i32, PhantomData<()>); + + impl From<i32> for Foo { + fn from(value: i32) -> Self { + Self(PhantomData, value, PhantomData) + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from, phantom_data + use core::marker::PhantomData; + struct $0Foo<T>(PhantomData<T>, i32, PhantomData<()>); + "#, + r#" + use core::marker::PhantomData; + struct Foo<T>(PhantomData<T>, i32, PhantomData<()>); + + impl<T> From<i32> for Foo<T> { + fn from(value: i32) -> Self { + Self(PhantomData, value, PhantomData) + } + } + "#, + ); + } + + #[test] + fn unit() { + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo(i32, ()); + "#, + r#" + struct Foo(i32, ()); + + impl From<i32> for Foo { + fn from(value: i32) -> Self { + Self(value, ()) + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo((), i32, ()); + "#, + r#" + struct Foo((), i32, ()); + + impl From<i32> for Foo { + fn from(value: i32) -> Self { + Self((), value, ()) + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo((), (), i32, ()); + "#, + r#" + struct Foo((), (), i32, ()); + + impl From<i32> for Foo { + fn from(value: i32) -> Self { + Self((), (), value, ()) + } + } + "#, + ); + } + + #[test] + fn invalid_multiple_main_field() { + check_assist_not_applicable( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo(i32, i32); + "#, + ); + check_assist_not_applicable( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo<T>(i32, T); + "#, + ); + check_assist_not_applicable( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo<T>(T, T); + "#, + ); + check_assist_not_applicable( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo<T> { foo: T, bar: i32 } + "#, + ); + check_assist_not_applicable( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo { foo: i32, bar: i64 } + "#, + ); + } + + #[test] + fn exists_other_from() { + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo(i32); + + impl From<&i32> for Foo { + fn from(value: &i32) -> Self { + todo!() + } + } + "#, + r#" + struct Foo(i32); + + impl From<i32> for Foo { + fn from(value: i32) -> Self { + Self(value) + } + } + + impl From<&i32> for Foo { + fn from(value: &i32) -> Self { + todo!() + } + } + "#, + ); + check_assist( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo(i32); + + type X = i32; + + impl From<&X> for Foo { + fn from(value: &X) -> Self { + todo!() + } + } + "#, + r#" + struct Foo(i32); + + impl From<i32> for Foo { + fn from(value: i32) -> Self { + Self(value) + } + } + + type X = i32; + + impl From<&X> for Foo { + fn from(value: &X) -> Self { + todo!() + } + } + "#, + ); + } + + #[test] + fn exists_from() { + check_assist_not_applicable( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo(i32); + + impl From<i32> for Foo { + fn from(_: i32) -> Self { + todo!() + } + } + "#, + ); + check_assist_not_applicable( + generate_single_field_struct_from, + r#" + //- minicore: from + struct $0Foo(i32); + + type X = i32; + + impl From<X> for Foo { + fn from(_: X) -> Self { + todo!() + } + } + "#, + ); + } +} diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/pull_assignment_up.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/pull_assignment_up.rs index 5f626d29571..1b0c3139353 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/pull_assignment_up.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/pull_assignment_up.rs @@ -1,7 +1,8 @@ use syntax::{ AstNode, - ast::{self, make}, - ted, + algo::find_node_at_range, + ast::{self, syntax_factory::SyntaxFactory}, + syntax_editor::SyntaxEditor, }; use crate::{ @@ -66,33 +67,51 @@ pub(crate) fn pull_assignment_up(acc: &mut Assists, ctx: &AssistContext<'_>) -> return None; } } - + let target = tgt.syntax().text_range(); + + let edit_tgt = tgt.syntax().clone_subtree(); + let assignments: Vec<_> = collector + .assignments + .into_iter() + .filter_map(|(stmt, rhs)| { + Some(( + find_node_at_range::<ast::BinExpr>( + &edit_tgt, + stmt.syntax().text_range() - target.start(), + )?, + find_node_at_range::<ast::Expr>( + &edit_tgt, + rhs.syntax().text_range() - target.start(), + )?, + )) + }) + .collect(); + + let mut editor = SyntaxEditor::new(edit_tgt); + for (stmt, rhs) in assignments { + let mut stmt = stmt.syntax().clone(); + if let Some(parent) = stmt.parent() { + if ast::ExprStmt::cast(parent.clone()).is_some() { + stmt = parent.clone(); + } + } + editor.replace(stmt, rhs.syntax()); + } + let new_tgt_root = editor.finish().new_root().clone(); + let new_tgt = ast::Expr::cast(new_tgt_root)?; acc.add( AssistId::refactor_extract("pull_assignment_up"), "Pull assignment up", - tgt.syntax().text_range(), + target, move |edit| { - let assignments: Vec<_> = collector - .assignments - .into_iter() - .map(|(stmt, rhs)| (edit.make_mut(stmt), rhs.clone_for_update())) - .collect(); - - let tgt = edit.make_mut(tgt); - - for (stmt, rhs) in assignments { - let mut stmt = stmt.syntax().clone(); - if let Some(parent) = stmt.parent() { - if ast::ExprStmt::cast(parent.clone()).is_some() { - stmt = parent.clone(); - } - } - ted::replace(stmt, rhs.syntax()); - } - let assign_expr = make::expr_assignment(collector.common_lhs, tgt.clone()); - let assign_stmt = make::expr_stmt(assign_expr); - - ted::replace(tgt.syntax(), assign_stmt.syntax().clone_for_update()); + let make = SyntaxFactory::with_mappings(); + let mut editor = edit.make_editor(tgt.syntax()); + let assign_expr = make.expr_assignment(collector.common_lhs, new_tgt.clone()); + let assign_stmt = make.expr_stmt(assign_expr.into()); + + editor.replace(tgt.syntax(), assign_stmt.syntax()); + editor.add_mappings(make.finish_with_mappings()); + edit.add_file_edits(ctx.vfs_file_id(), editor); }, ) } diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/remove_dbg.rs b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/remove_dbg.rs index 52ace03f3cf..9356d02706c 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/handlers/remove_dbg.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/handlers/remove_dbg.rs @@ -1,8 +1,9 @@ use itertools::Itertools; use syntax::{ - Edition, NodeOrToken, SyntaxElement, T, TextRange, TextSize, - ast::{self, AstNode, AstToken, make}, - match_ast, ted, + Edition, NodeOrToken, SyntaxNode, SyntaxToken, T, + ast::{self, AstNode, make}, + match_ast, + syntax_editor::{Position, SyntaxEditor}, }; use crate::{AssistContext, AssistId, Assists}; @@ -40,21 +41,23 @@ pub(crate) fn remove_dbg(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<( let replacements = macro_calls.into_iter().filter_map(compute_dbg_replacement).collect::<Vec<_>>(); - - acc.add( - AssistId::quick_fix("remove_dbg"), - "Remove dbg!()", - replacements.iter().map(|&(range, _)| range).reduce(|acc, range| acc.cover(range))?, - |builder| { - for (range, expr) in replacements { - if let Some(expr) = expr { - builder.replace(range, expr.to_string()); - } else { - builder.delete(range); - } + let target = replacements + .iter() + .flat_map(|(node_or_token, _)| node_or_token.iter()) + .map(|t| t.text_range()) + .reduce(|acc, range| acc.cover(range))?; + acc.add(AssistId::quick_fix("remove_dbg"), "Remove dbg!()", target, |builder| { + let mut editor = builder.make_editor(ctx.source_file().syntax()); + for (range, expr) in replacements { + if let Some(expr) = expr { + editor.insert(Position::before(range[0].clone()), expr.syntax().clone_for_update()); + } + for node_or_token in range { + editor.delete(node_or_token); } - }, - ) + } + builder.add_file_edits(ctx.vfs_file_id(), editor); + }) } /// Returns `None` when either @@ -63,7 +66,9 @@ pub(crate) fn remove_dbg(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<( /// - (`macro_expr` has no parent - is that possible?) /// /// Returns `Some(_, None)` when the macro call should just be removed. -fn compute_dbg_replacement(macro_expr: ast::MacroExpr) -> Option<(TextRange, Option<ast::Expr>)> { +fn compute_dbg_replacement( + macro_expr: ast::MacroExpr, +) -> Option<(Vec<NodeOrToken<SyntaxNode, SyntaxToken>>, Option<ast::Expr>)> { let macro_call = macro_expr.macro_call()?; let tt = macro_call.token_tree()?; let r_delim = NodeOrToken::Token(tt.right_delimiter_token()?); @@ -88,22 +93,22 @@ fn compute_dbg_replacement(macro_expr: ast::MacroExpr) -> Option<(TextRange, Opt match_ast! { match parent { ast::StmtList(_) => { - let range = macro_expr.syntax().text_range(); - let range = match whitespace_start(macro_expr.syntax().prev_sibling_or_token()) { - Some(start) => range.cover_offset(start), - None => range, - }; - (range, None) + let mut replace = vec![macro_expr.syntax().clone().into()]; + if let Some(prev_sibling) = macro_expr.syntax().prev_sibling_or_token() + && prev_sibling.kind() == syntax::SyntaxKind::WHITESPACE { + replace.push(prev_sibling); + } + (replace, None) }, ast::ExprStmt(it) => { - let range = it.syntax().text_range(); - let range = match whitespace_start(it.syntax().prev_sibling_or_token()) { - Some(start) => range.cover_offset(start), - None => range, - }; - (range, None) + let mut replace = vec![it.syntax().clone().into()]; + if let Some(prev_sibling) = it.syntax().prev_sibling_or_token() + && prev_sibling.kind() == syntax::SyntaxKind::WHITESPACE { + replace.push(prev_sibling); + } + (replace, None) }, - _ => (macro_call.syntax().text_range(), Some(make::ext::expr_unit())), + _ => (vec![macro_call.syntax().clone().into()], Some(make::ext::expr_unit())), } } } @@ -147,13 +152,13 @@ fn compute_dbg_replacement(macro_expr: ast::MacroExpr) -> Option<(TextRange, Opt }; let expr = replace_nested_dbgs(expr.clone()); let expr = if wrap { make::expr_paren(expr).into() } else { expr.clone_subtree() }; - (macro_call.syntax().text_range(), Some(expr)) + (vec![macro_call.syntax().clone().into()], Some(expr)) } // dbg!(expr0, expr1, ...) exprs => { let exprs = exprs.iter().cloned().map(replace_nested_dbgs); let expr = make::expr_tuple(exprs); - (macro_call.syntax().text_range(), Some(expr.into())) + (vec![macro_call.syntax().clone().into()], Some(expr.into())) } }) } @@ -178,8 +183,8 @@ fn replace_nested_dbgs(expanded: ast::Expr) -> ast::Expr { return replaced; } - let expanded = expanded.clone_for_update(); - + let expanded = expanded.clone_subtree(); + let mut editor = SyntaxEditor::new(expanded.syntax().clone()); // We need to collect to avoid mutation during traversal. let macro_exprs: Vec<_> = expanded.syntax().descendants().filter_map(ast::MacroExpr::cast).collect(); @@ -191,17 +196,13 @@ fn replace_nested_dbgs(expanded: ast::Expr) -> ast::Expr { }; if let Some(expr) = expr_opt { - ted::replace(mac.syntax(), expr.syntax().clone_for_update()); + editor.replace(mac.syntax(), expr.syntax().clone_for_update()); } else { - ted::remove(mac.syntax()); + editor.delete(mac.syntax()); } } - - expanded -} - -fn whitespace_start(it: Option<SyntaxElement>) -> Option<TextSize> { - Some(it?.into_token().and_then(ast::Whitespace::cast)?.syntax().text_range().start()) + let expanded_syntax = editor.finish().new_root().clone(); + ast::Expr::cast(expanded_syntax).unwrap() } #[cfg(test)] 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 index 62914ee7f38..5ef8ba46b9e 100644 --- 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 @@ -64,13 +64,12 @@ pub(crate) fn replace_is_method_with_if_let_method( let pat = make.tuple_struct_pat(make.ident_path(text), [var_pat.into()]); let let_expr = make.expr_let(pat.into(), receiver); - if let Some(cap) = ctx.config.snippet_cap { - if let Some(ast::Pat::TupleStructPat(pat)) = let_expr.pat() { - if let Some(first_var) = pat.fields().next() { - let placeholder = edit.make_placeholder_snippet(cap); - editor.add_annotation(first_var.syntax(), placeholder); - } - } + if let Some(cap) = ctx.config.snippet_cap + && let Some(ast::Pat::TupleStructPat(pat)) = let_expr.pat() + && let Some(first_var) = pat.fields().next() + { + let placeholder = edit.make_placeholder_snippet(cap); + editor.add_annotation(first_var.syntax(), placeholder); } editor.replace(call_expr.syntax(), let_expr.syntax()); 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 c2604432032..cde0d875e0d 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/lib.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/lib.rs @@ -172,6 +172,7 @@ mod handlers { mod generate_is_empty_from_len; mod generate_mut_trait_impl; mod generate_new; + mod generate_single_field_struct_from; mod generate_trait_from_impl; mod inline_call; mod inline_const_as_literal; @@ -305,6 +306,7 @@ mod handlers { generate_mut_trait_impl::generate_mut_trait_impl, generate_new::generate_new, generate_trait_from_impl::generate_trait_from_impl, + generate_single_field_struct_from::generate_single_field_struct_from, inline_call::inline_call, inline_call::inline_into_callers, inline_const_as_literal::inline_const_as_literal, 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 72f7195cbd7..fc1c6928ff3 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 @@ -1933,7 +1933,7 @@ 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] + &mut self[index as usize] } } @@ -1995,6 +1995,34 @@ impl Person { } #[test] +fn doctest_generate_single_field_struct_from() { + check_doc_test( + "generate_single_field_struct_from", + r#####" +//- minicore: from, phantom_data +use core::marker::PhantomData; +struct $0Foo<T> { + id: i32, + _phantom_data: PhantomData<T>, +} +"#####, + r#####" +use core::marker::PhantomData; +struct Foo<T> { + id: i32, + _phantom_data: PhantomData<T>, +} + +impl<T> From<i32> for Foo<T> { + fn from(id: i32) -> Self { + Self { id, _phantom_data: PhantomData } + } +} +"#####, + ) +} + +#[test] fn doctest_generate_trait_from_impl() { check_doc_test( "generate_trait_from_impl", diff --git a/src/tools/rust-analyzer/crates/ide-assists/src/utils.rs b/src/tools/rust-analyzer/crates/ide-assists/src/utils.rs index 87a4c2ef758..2c8cb6e4d91 100644 --- a/src/tools/rust-analyzer/crates/ide-assists/src/utils.rs +++ b/src/tools/rust-analyzer/crates/ide-assists/src/utils.rs @@ -594,12 +594,10 @@ fn generate_impl_text_inner( let generic_params = adt.generic_param_list().map(|generic_params| { let lifetime_params = generic_params.lifetime_params().map(ast::GenericParam::LifetimeParam); - let ty_or_const_params = generic_params.type_or_const_params().map(|param| { - match param { + let ty_or_const_params = generic_params.type_or_const_params().filter_map(|param| { + let param = match param { ast::TypeOrConstParam::Type(param) => { - let param = param.clone_for_update(); // remove defaults since they can't be specified in impls - param.remove_default(); let mut bounds = param.type_bound_list().map_or_else(Vec::new, |it| it.bounds().collect()); if let Some(trait_) = trait_text { @@ -610,17 +608,16 @@ fn generate_impl_text_inner( } }; // `{ty_param}: {bounds}` - let param = - make::type_param(param.name().unwrap(), make::type_bound_list(bounds)); + let param = make::type_param(param.name()?, make::type_bound_list(bounds)); ast::GenericParam::TypeParam(param) } ast::TypeOrConstParam::Const(param) => { - let param = param.clone_for_update(); // remove defaults since they can't be specified in impls - param.remove_default(); + let param = make::const_param(param.name()?, param.ty()?); ast::GenericParam::ConstParam(param) } - } + }; + Some(param) }); make::generic_param_list(itertools::chain(lifetime_params, ty_or_const_params)) @@ -695,12 +692,10 @@ fn generate_impl_inner( let generic_params = adt.generic_param_list().map(|generic_params| { let lifetime_params = generic_params.lifetime_params().map(ast::GenericParam::LifetimeParam); - let ty_or_const_params = generic_params.type_or_const_params().map(|param| { - match param { + let ty_or_const_params = generic_params.type_or_const_params().filter_map(|param| { + let param = match param { ast::TypeOrConstParam::Type(param) => { - let param = param.clone_for_update(); // remove defaults since they can't be specified in impls - param.remove_default(); let mut bounds = param.type_bound_list().map_or_else(Vec::new, |it| it.bounds().collect()); if let Some(trait_) = &trait_ { @@ -711,17 +706,16 @@ fn generate_impl_inner( } }; // `{ty_param}: {bounds}` - let param = - make::type_param(param.name().unwrap(), make::type_bound_list(bounds)); + let param = make::type_param(param.name()?, make::type_bound_list(bounds)); ast::GenericParam::TypeParam(param) } ast::TypeOrConstParam::Const(param) => { - let param = param.clone_for_update(); // remove defaults since they can't be specified in impls - param.remove_default(); + let param = make::const_param(param.name()?, param.ty()?); ast::GenericParam::ConstParam(param) } - } + }; + Some(param) }); make::generic_param_list(itertools::chain(lifetime_params, ty_or_const_params)) @@ -749,16 +743,23 @@ fn generate_impl_inner( .clone_for_update(); // Copy any cfg attrs from the original adt - let cfg_attrs = adt - .attrs() - .filter(|attr| attr.as_simple_call().map(|(name, _arg)| name == "cfg").unwrap_or(false)); - for attr in cfg_attrs { - impl_.add_attr(attr.clone_for_update()); - } + add_cfg_attrs_to(adt, &impl_); impl_ } +pub(crate) fn add_cfg_attrs_to<T, U>(from: &T, to: &U) +where + T: HasAttrs, + U: AttrsOwnerEdit, +{ + let cfg_attrs = + from.attrs().filter(|attr| attr.as_simple_call().is_some_and(|(name, _arg)| name == "cfg")); + for attr in cfg_attrs { + to.add_attr(attr.clone_for_update()); + } +} + pub(crate) fn add_method_to_adt( builder: &mut SourceChangeBuilder, adt: &ast::Adt, diff --git a/src/tools/rust-analyzer/crates/ide-completion/src/completions/item_list/trait_impl.rs b/src/tools/rust-analyzer/crates/ide-completion/src/completions/item_list/trait_impl.rs index 092219a058a..975c2f02259 100644 --- a/src/tools/rust-analyzer/crates/ide-completion/src/completions/item_list/trait_impl.rs +++ b/src/tools/rust-analyzer/crates/ide-completion/src/completions/item_list/trait_impl.rs @@ -37,6 +37,7 @@ use ide_db::{ SymbolKind, documentation::HasDocs, path_transform::PathTransform, syntax_helpers::prettify_macro_expansion, traits::get_missing_assoc_items, }; +use syntax::ast::HasGenericParams; use syntax::{ AstNode, SmolStr, SyntaxElement, SyntaxKind, T, TextRange, ToSmolStr, ast::{self, HasGenericArgs, HasTypeBounds, edit_in_place::AttrsOwnerEdit, make}, @@ -390,6 +391,12 @@ fn add_type_alias_impl( } else if let Some(end) = transformed_ty.eq_token().map(|tok| tok.text_range().start()) { end + } else if let Some(end) = transformed_ty + .where_clause() + .and_then(|wc| wc.where_token()) + .map(|tok| tok.text_range().start()) + { + end } else if let Some(end) = transformed_ty.semicolon_token().map(|tok| tok.text_range().start()) { @@ -400,17 +407,29 @@ fn add_type_alias_impl( let len = end - start; let mut decl = transformed_ty.syntax().text().slice(..len).to_string(); - if !decl.ends_with(' ') { - decl.push(' '); - } - decl.push_str("= "); + decl.truncate(decl.trim_end().len()); + decl.push_str(" = "); + + let wc = transformed_ty + .where_clause() + .map(|wc| { + let ws = wc + .where_token() + .and_then(|it| it.prev_token()) + .filter(|token| token.kind() == SyntaxKind::WHITESPACE) + .map(|token| token.to_string()) + .unwrap_or_else(|| " ".into()); + format!("{ws}{wc}") + }) + .unwrap_or_default(); match ctx.config.snippet_cap { Some(cap) => { - let snippet = format!("{decl}$0;"); + let snippet = format!("{decl}$0{wc};"); item.snippet_edit(cap, TextEdit::replace(replacement_range, snippet)); } None => { + decl.push_str(&wc); item.text_edit(TextEdit::replace(replacement_range, decl)); } }; @@ -1440,6 +1459,30 @@ impl<'b> Tr<'b> for () { "#, ); } + #[test] + fn includes_where_clause() { + check_edit( + "type Ty", + r#" +trait Tr { + type Ty where Self: Copy; +} + +impl Tr for () { + $0 +} +"#, + r#" +trait Tr { + type Ty where Self: Copy; +} + +impl Tr for () { + type Ty = $0 where Self: Copy; +} +"#, + ); + } #[test] fn strips_comments() { diff --git a/src/tools/rust-analyzer/crates/ide-completion/src/tests/item_list.rs b/src/tools/rust-analyzer/crates/ide-completion/src/tests/item_list.rs index 179d6693602..ac32649d4ff 100644 --- a/src/tools/rust-analyzer/crates/ide-completion/src/tests/item_list.rs +++ b/src/tools/rust-analyzer/crates/ide-completion/src/tests/item_list.rs @@ -458,6 +458,33 @@ type O = $0; r" struct A; trait B { +type O<'a> +where +Self: 'a; +} +impl B for A { +$0 +} +", + r#" +struct A; +trait B { +type O<'a> +where +Self: 'a; +} +impl B for A { +type O<'a> = $0 +where +Self: 'a; +} +"#, + ); + check_edit( + "type O", + r" +struct A; +trait B { type O: ?Sized = u32; } impl B for A { diff --git a/src/tools/rust-analyzer/crates/ide-db/src/test_data/test_symbol_index_collection.txt b/src/tools/rust-analyzer/crates/ide-db/src/test_data/test_symbol_index_collection.txt index de046e70c67..973256c470f 100644 --- a/src/tools/rust-analyzer/crates/ide-db/src/test_data/test_symbol_index_collection.txt +++ b/src/tools/rust-analyzer/crates/ide-db/src/test_data/test_symbol_index_collection.txt @@ -11,6 +11,40 @@ }, [ FileSymbol { + name: "A", + def: Variant( + Variant { + id: EnumVariantId( + 7800, + ), + }, + ), + loc: DeclarationLocation { + hir_file_id: FileId( + EditionedFileId( + Id(2000), + ), + ), + ptr: SyntaxNodePtr { + kind: VARIANT, + range: 201..202, + }, + name_ptr: AstPtr( + SyntaxNodePtr { + kind: NAME, + range: 201..202, + }, + ), + }, + container_name: Some( + "Enum", + ), + is_alias: false, + is_assoc: true, + is_import: false, + do_not_complete: Yes, + }, + FileSymbol { name: "Alias", def: TypeAlias( TypeAlias { @@ -43,6 +77,40 @@ do_not_complete: Yes, }, FileSymbol { + name: "B", + def: Variant( + Variant { + id: EnumVariantId( + 7801, + ), + }, + ), + loc: DeclarationLocation { + hir_file_id: FileId( + EditionedFileId( + Id(2000), + ), + ), + ptr: SyntaxNodePtr { + kind: VARIANT, + range: 204..205, + }, + name_ptr: AstPtr( + SyntaxNodePtr { + kind: NAME, + range: 204..205, + }, + ), + }, + container_name: Some( + "Enum", + ), + is_alias: false, + is_assoc: true, + is_import: false, + do_not_complete: Yes, + }, + FileSymbol { name: "CONST", def: Const( Const { diff --git a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/incorrect_generics_len.rs b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/incorrect_generics_len.rs index 06f35759420..7402133f747 100644 --- a/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/incorrect_generics_len.rs +++ b/src/tools/rust-analyzer/crates/ide-diagnostics/src/handlers/incorrect_generics_len.rs @@ -183,4 +183,28 @@ fn main() { "#, ); } + + #[test] + fn generic_assoc_type_infer_lifetime_in_expr_position() { + check_diagnostics( + r#" +//- minicore: sized +struct Player; + +struct Foo<'c, C> { + _v: &'c C, +} +trait WithSignals: Sized { + type SignalCollection<'c, C>; + fn __signals_from_external(&self) -> Self::SignalCollection<'_, Self>; +} +impl WithSignals for Player { + type SignalCollection<'c, C> = Foo<'c, C>; + fn __signals_from_external(&self) -> Self::SignalCollection<'_, Self> { + Self::SignalCollection { _v: self } + } +} + "#, + ); + } } 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 d8f6e813d80..17caf630182 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 @@ -983,4 +983,19 @@ fn test() { "#, ); } + + #[test] + fn naked_asm_is_safe() { + check_diagnostics( + r#" +#[rustc_builtin_macro] +macro_rules! naked_asm { () => {} } + +#[unsafe(naked)] +extern "C" fn naked() { + naked_asm!(""); +} + "#, + ); + } } 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 f58202a4213..a5d9a10d2e5 100644 --- a/src/tools/rust-analyzer/crates/ide/src/doc_links.rs +++ b/src/tools/rust-analyzer/crates/ide/src/doc_links.rs @@ -505,7 +505,7 @@ fn map_links<'e>( Event::End(Tag::Link(link_type, target, _)) => { in_link = false; Event::End(Tag::Link( - end_link_type.unwrap_or(link_type), + end_link_type.take().unwrap_or(link_type), end_link_target.take().unwrap_or(target), CowStr::Borrowed(""), )) @@ -514,7 +514,7 @@ fn map_links<'e>( let (link_type, link_target_s, link_name) = callback(&end_link_target.take().unwrap(), &s, range, end_link_type.unwrap()); end_link_target = Some(CowStr::Boxed(link_target_s.into())); - if !matches!(end_link_type, Some(LinkType::Autolink)) { + if !matches!(end_link_type, Some(LinkType::Autolink)) && link_type.is_some() { end_link_type = link_type; } Event::Text(CowStr::Boxed(link_name.into())) @@ -523,7 +523,7 @@ fn map_links<'e>( let (link_type, link_target_s, link_name) = callback(&end_link_target.take().unwrap(), &s, range, end_link_type.unwrap()); end_link_target = Some(CowStr::Boxed(link_target_s.into())); - if !matches!(end_link_type, Some(LinkType::Autolink)) { + if !matches!(end_link_type, Some(LinkType::Autolink)) && link_type.is_some() { end_link_type = link_type; } Event::Code(CowStr::Boxed(link_name.into())) diff --git a/src/tools/rust-analyzer/crates/ide/src/folding_ranges.rs b/src/tools/rust-analyzer/crates/ide/src/folding_ranges.rs index 9bd8504733a..c081796d078 100755 --- a/src/tools/rust-analyzer/crates/ide/src/folding_ranges.rs +++ b/src/tools/rust-analyzer/crates/ide/src/folding_ranges.rs @@ -23,6 +23,7 @@ pub enum FoldKind { WhereClause, ReturnType, MatchArm, + Function, // region: item runs Modules, Consts, @@ -47,6 +48,7 @@ pub(crate) fn folding_ranges(file: &SourceFile) -> Vec<Fold> { let mut res = vec![]; let mut visited_comments = FxHashSet::default(); let mut visited_nodes = FxHashSet::default(); + let mut merged_fn_bodies = FxHashSet::default(); // regions can be nested, here is a LIFO buffer let mut region_starts: Vec<TextSize> = vec![]; @@ -59,6 +61,32 @@ pub(crate) fn folding_ranges(file: &SourceFile) -> Vec<Fold> { NodeOrToken::Token(token) => token.text().contains('\n'), }; if is_multiline { + // for the func with multiline param list + if matches!(element.kind(), FN) { + if let NodeOrToken::Node(node) = &element { + if let Some(fn_node) = ast::Fn::cast(node.clone()) { + if !fn_node + .param_list() + .map(|param_list| param_list.syntax().text().contains_char('\n')) + .unwrap_or(false) + { + continue; + } + + if let Some(body) = fn_node.body() { + res.push(Fold { + range: TextRange::new( + node.text_range().start(), + node.text_range().end(), + ), + kind: FoldKind::Function, + }); + merged_fn_bodies.insert(body.syntax().text_range()); + continue; + } + } + } + } res.push(Fold { range: element.text_range(), kind }); continue; } @@ -152,6 +180,7 @@ fn fold_kind(kind: SyntaxKind) -> Option<FoldKind> { ARG_LIST | PARAM_LIST | GENERIC_ARG_LIST | GENERIC_PARAM_LIST => Some(FoldKind::ArgList), ARRAY_EXPR => Some(FoldKind::Array), RET_TYPE => Some(FoldKind::ReturnType), + FN => Some(FoldKind::Function), WHERE_CLAUSE => Some(FoldKind::WhereClause), ASSOC_ITEM_LIST | RECORD_FIELD_LIST @@ -291,6 +320,7 @@ mod tests { use super::*; + #[track_caller] fn check(#[rust_analyzer::rust_fixture] ra_fixture: &str) { let (ranges, text) = extract_tags(ra_fixture, "fold"); @@ -322,6 +352,7 @@ mod tests { FoldKind::WhereClause => "whereclause", FoldKind::ReturnType => "returntype", FoldKind::MatchArm => "matcharm", + FoldKind::Function => "function", FoldKind::TraitAliases => "traitaliases", FoldKind::ExternCrates => "externcrates", }; @@ -330,6 +361,23 @@ mod tests { } #[test] + fn test_fold_func_with_multiline_param_list() { + check( + r#" +<fold function>fn func<fold arglist>( + a: i32, + b: i32, + c: i32, +)</fold> <fold block>{ + + + +}</fold></fold> +"#, + ); + } + + #[test] fn test_fold_comments() { check( r#" @@ -541,10 +589,10 @@ const _: S = S <fold block>{ fn fold_multiline_params() { check( r#" -fn foo<fold arglist>( +<fold function>fn foo<fold arglist>( x: i32, y: String, -)</fold> {} +)</fold> {}</fold> "#, ) } 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 f63499aa0fd..c5480217a91 100644 --- a/src/tools/rust-analyzer/crates/ide/src/hover/tests.rs +++ b/src/tools/rust-analyzer/crates/ide/src/hover/tests.rs @@ -10958,3 +10958,68 @@ fn bar$0() -> Foo { "#]], ); } + +#[test] +fn regression_20190() { + check( + r#" +struct Foo; + +/// [`foo` bar](Foo). +fn has_docs$0() {} + "#, + expect. + "#]], + ); +} + +#[test] +fn regression_20225() { + check( + r#" +//- minicore: coerce_unsized +trait Trait { + type Type<'a, T: ?Sized + 'a>; +} + +enum Borrowed {} + +impl Trait for Borrowed { + type Type<'a, T: ?Sized + 'a> = &'a T; +} + +enum Enum<'a, T: Trait + 'a> { + Variant1(T::Type<'a, [Enum<'a, T>]>), + Variant2, +} + +impl Enum<'_, Borrowed> { + const CONSTANT$0: Self = Self::Variant1(&[Self::Variant2]); +} + "#, + expect![[r#" + *CONSTANT* + + ```rust + ra_test_fixture::Enum + ``` + + ```rust + const CONSTANT: Self = Variant1(&[Variant2]) + ``` + "#]], + ); +} diff --git a/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implicit_drop.rs b/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implicit_drop.rs index bf4688e9d82..d0539abe282 100644 --- a/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implicit_drop.rs +++ b/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implicit_drop.rs @@ -92,7 +92,7 @@ pub(super) fn hints( }, MirSpan::Unknown => continue, }; - let binding = &hir.bindings[binding_idx]; + let binding = &hir[binding_idx]; let name = binding.name.display_no_db(display_target.edition).to_smolstr(); if name.starts_with("<ra@") { continue; // Ignore desugared variables diff --git a/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implied_dyn_trait.rs b/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implied_dyn_trait.rs index cd01c075832..0da1785234a 100644 --- a/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implied_dyn_trait.rs +++ b/src/tools/rust-analyzer/crates/ide/src/inlay_hints/implied_dyn_trait.rs @@ -17,8 +17,12 @@ pub(super) fn hints( let parent = path.syntax().parent()?; let range = match path { Either::Left(path) => { - let paren = - parent.ancestors().take_while(|it| ast::ParenType::can_cast(it.kind())).last(); + let paren = parent + .ancestors() + .take_while(|it| { + ast::ParenType::can_cast(it.kind()) || ast::ForType::can_cast(it.kind()) + }) + .last(); let parent = paren.as_ref().and_then(|it| it.parent()).unwrap_or(parent); if ast::TypeBound::can_cast(parent.kind()) || ast::TypeAnchor::can_cast(parent.kind()) @@ -34,7 +38,7 @@ pub(super) fn hints( return None; } sema.resolve_trait(&path.path()?)?; - paren.map_or_else(|| path.syntax().text_range(), |it| it.text_range()) + path.syntax().text_range() } Either::Right(dyn_) => { if dyn_.dyn_token().is_some() { @@ -89,7 +93,7 @@ fn foo(_: &T, _: for<'a> T) {} impl T {} // ^ dyn impl T for (T) {} - // ^^^ dyn + // ^ dyn impl T "#, ); @@ -112,7 +116,7 @@ fn foo( _: &mut (T + T) // ^^^^^ dyn _: *mut (T), - // ^^^ dyn + // ^ dyn ) {} "#, ); @@ -136,4 +140,26 @@ fn foo( "#]], ); } + + #[test] + fn hrtb_bound_does_not_add_dyn() { + check( + r#" +//- minicore: fn +fn test<F>(f: F) where F: for<'a> FnOnce(&'a i32) {} + // ^: Sized + "#, + ); + } + + #[test] + fn with_parentheses() { + check( + r#" +trait T {} +fn foo(v: &(T)) {} + // ^ dyn + "#, + ); + } } diff --git a/src/tools/rust-analyzer/crates/parser/src/grammar/expressions.rs b/src/tools/rust-analyzer/crates/parser/src/grammar/expressions.rs index 0ac25da3294..2b4151e3b75 100644 --- a/src/tools/rust-analyzer/crates/parser/src/grammar/expressions.rs +++ b/src/tools/rust-analyzer/crates/parser/src/grammar/expressions.rs @@ -4,7 +4,7 @@ use crate::grammar::attributes::ATTRIBUTE_FIRST; use super::*; -pub(super) use atom::{EXPR_RECOVERY_SET, LITERAL_FIRST, literal}; +pub(super) use atom::{EXPR_RECOVERY_SET, LITERAL_FIRST, literal, parse_asm_expr}; pub(crate) use atom::{block_expr, match_arm_list}; #[derive(PartialEq, Eq)] diff --git a/src/tools/rust-analyzer/crates/parser/src/grammar/expressions/atom.rs b/src/tools/rust-analyzer/crates/parser/src/grammar/expressions/atom.rs index 8ed0fc6729f..76656567e7f 100644 --- a/src/tools/rust-analyzer/crates/parser/src/grammar/expressions/atom.rs +++ b/src/tools/rust-analyzer/crates/parser/src/grammar/expressions/atom.rs @@ -253,8 +253,7 @@ fn builtin_expr(p: &mut Parser<'_>) -> Option<CompletedMarker> { let m = p.start(); p.bump_remap(T![builtin]); p.bump(T![#]); - if p.at_contextual_kw(T![offset_of]) { - p.bump_remap(T![offset_of]); + if p.eat_contextual_kw(T![offset_of]) { p.expect(T!['(']); type_(p); p.expect(T![,]); @@ -278,8 +277,7 @@ fn builtin_expr(p: &mut Parser<'_>) -> Option<CompletedMarker> { p.expect(T![')']); } Some(m.complete(p, OFFSET_OF_EXPR)) - } else if p.at_contextual_kw(T![format_args]) { - p.bump_remap(T![format_args]); + } else if p.eat_contextual_kw(T![format_args]) { p.expect(T!['(']); expr(p); if p.eat(T![,]) { @@ -302,7 +300,16 @@ fn builtin_expr(p: &mut Parser<'_>) -> Option<CompletedMarker> { } p.expect(T![')']); Some(m.complete(p, FORMAT_ARGS_EXPR)) - } else if p.at_contextual_kw(T![asm]) { + } else if p.eat_contextual_kw(T![asm]) + || p.eat_contextual_kw(T![global_asm]) + || p.eat_contextual_kw(T![naked_asm]) + { + // test asm_kinds + // fn foo() { + // builtin#asm(""); + // builtin#global_asm(""); + // builtin#naked_asm(""); + // } parse_asm_expr(p, m) } else { m.abandon(p); @@ -321,8 +328,7 @@ fn builtin_expr(p: &mut Parser<'_>) -> Option<CompletedMarker> { // tmp = out(reg) _, // ); // } -fn parse_asm_expr(p: &mut Parser<'_>, m: Marker) -> Option<CompletedMarker> { - p.bump_remap(T![asm]); +pub(crate) fn parse_asm_expr(p: &mut Parser<'_>, m: Marker) -> Option<CompletedMarker> { p.expect(T!['(']); if expr(p).is_none() { p.err_and_bump("expected asm template"); @@ -411,11 +417,10 @@ fn parse_asm_expr(p: &mut Parser<'_>, m: Marker) -> Option<CompletedMarker> { dir_spec.abandon(p); op.abandon(p); op_n.abandon(p); - p.err_and_bump("expected asm operand"); - // improves error recovery and handles err_and_bump recovering from `{` which gets - // the parser stuck here + // improves error recovery if p.at(T!['{']) { + p.error("expected asm operand"); // test_err bad_asm_expr // fn foo() { // builtin#asm( @@ -423,6 +428,8 @@ fn parse_asm_expr(p: &mut Parser<'_>, m: Marker) -> Option<CompletedMarker> { // ); // } expr(p); + } else { + p.err_and_bump("expected asm operand"); } if p.at(T!['}']) { diff --git a/src/tools/rust-analyzer/crates/parser/src/grammar/items.rs b/src/tools/rust-analyzer/crates/parser/src/grammar/items.rs index b9f4866574a..8e551b0b961 100644 --- a/src/tools/rust-analyzer/crates/parser/src/grammar/items.rs +++ b/src/tools/rust-analyzer/crates/parser/src/grammar/items.rs @@ -261,6 +261,19 @@ fn opt_item_without_modifiers(p: &mut Parser<'_>, m: Marker) -> Result<(), Marke T![const] if (la == IDENT || la == T![_] || la == T![mut]) => consts::konst(p, m), T![static] if (la == IDENT || la == T![_] || la == T![mut]) => consts::static_(p, m), + IDENT + if p.at_contextual_kw(T![builtin]) + && p.nth_at(1, T![#]) + && p.nth_at_contextual_kw(2, T![global_asm]) => + { + p.bump_remap(T![builtin]); + p.bump(T![#]); + p.bump_remap(T![global_asm]); + // test global_asm + // builtin#global_asm("") + expressions::parse_asm_expr(p, m); + } + _ => return Err(m), }; Ok(()) 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 bff9acd78fa..8fff1c3db74 100644 --- a/src/tools/rust-analyzer/crates/parser/src/lexed_str.rs +++ b/src/tools/rust-analyzer/crates/parser/src/lexed_str.rs @@ -11,8 +11,8 @@ use std::ops; use rustc_literal_escaper::{ - unescape_byte, unescape_byte_str, unescape_c_str, unescape_char, unescape_str, EscapeError, - Mode, + EscapeError, Mode, unescape_byte, unescape_byte_str, unescape_c_str, unescape_char, + unescape_str, }; use crate::{ diff --git a/src/tools/rust-analyzer/crates/parser/src/parser.rs b/src/tools/rust-analyzer/crates/parser/src/parser.rs index 36a363afe93..ca02d9fdfde 100644 --- a/src/tools/rust-analyzer/crates/parser/src/parser.rs +++ b/src/tools/rust-analyzer/crates/parser/src/parser.rs @@ -29,7 +29,7 @@ pub(crate) struct Parser<'t> { edition: Edition, } -const PARSER_STEP_LIMIT: usize = 15_000_000; +const PARSER_STEP_LIMIT: usize = if cfg!(debug_assertions) { 150_000 } else { 15_000_000 }; impl<'t> Parser<'t> { pub(super) fn new(inp: &'t Input, edition: Edition) -> Parser<'t> { @@ -254,7 +254,10 @@ impl<'t> Parser<'t> { /// Create an error node and consume the next token. pub(crate) fn err_and_bump(&mut self, message: &str) { - self.err_recover(message, TokenSet::EMPTY); + let m = self.start(); + self.error(message); + self.bump_any(); + m.complete(self, ERROR); } /// Create an error node and consume the next token unless it is in the recovery set. diff --git a/src/tools/rust-analyzer/crates/parser/src/syntax_kind/generated.rs b/src/tools/rust-analyzer/crates/parser/src/syntax_kind/generated.rs index f534546ea07..12a13caa4d9 100644 --- a/src/tools/rust-analyzer/crates/parser/src/syntax_kind/generated.rs +++ b/src/tools/rust-analyzer/crates/parser/src/syntax_kind/generated.rs @@ -120,12 +120,14 @@ pub enum SyntaxKind { DYN_KW, FORMAT_ARGS_KW, GEN_KW, + GLOBAL_ASM_KW, INLATEOUT_KW, INOUT_KW, LABEL_KW, LATEOUT_KW, MACRO_RULES_KW, MAY_UNWIND_KW, + NAKED_ASM_KW, NOMEM_KW, NORETURN_KW, NOSTACK_KW, @@ -599,12 +601,14 @@ impl SyntaxKind { DEFAULT_KW => "default", DYN_KW => "dyn", FORMAT_ARGS_KW => "format_args", + GLOBAL_ASM_KW => "global_asm", INLATEOUT_KW => "inlateout", INOUT_KW => "inout", LABEL_KW => "label", LATEOUT_KW => "lateout", MACRO_RULES_KW => "macro_rules", MAY_UNWIND_KW => "may_unwind", + NAKED_ASM_KW => "naked_asm", NOMEM_KW => "nomem", NORETURN_KW => "noreturn", NOSTACK_KW => "nostack", @@ -699,12 +703,14 @@ impl SyntaxKind { DEFAULT_KW => true, DYN_KW if edition < Edition::Edition2018 => true, FORMAT_ARGS_KW => true, + GLOBAL_ASM_KW => true, INLATEOUT_KW => true, INOUT_KW => true, LABEL_KW => true, LATEOUT_KW => true, MACRO_RULES_KW => true, MAY_UNWIND_KW => true, + NAKED_ASM_KW => true, NOMEM_KW => true, NORETURN_KW => true, NOSTACK_KW => true, @@ -787,12 +793,14 @@ impl SyntaxKind { DEFAULT_KW => true, DYN_KW if edition < Edition::Edition2018 => true, FORMAT_ARGS_KW => true, + GLOBAL_ASM_KW => true, INLATEOUT_KW => true, INOUT_KW => true, LABEL_KW => true, LATEOUT_KW => true, MACRO_RULES_KW => true, MAY_UNWIND_KW => true, + NAKED_ASM_KW => true, NOMEM_KW => true, NORETURN_KW => true, NOSTACK_KW => true, @@ -938,12 +946,14 @@ impl SyntaxKind { "default" => DEFAULT_KW, "dyn" if edition < Edition::Edition2018 => DYN_KW, "format_args" => FORMAT_ARGS_KW, + "global_asm" => GLOBAL_ASM_KW, "inlateout" => INLATEOUT_KW, "inout" => INOUT_KW, "label" => LABEL_KW, "lateout" => LATEOUT_KW, "macro_rules" => MACRO_RULES_KW, "may_unwind" => MAY_UNWIND_KW, + "naked_asm" => NAKED_ASM_KW, "nomem" => NOMEM_KW, "noreturn" => NORETURN_KW, "nostack" => NOSTACK_KW, @@ -998,7 +1008,7 @@ impl SyntaxKind { } } #[macro_export] -macro_rules ! T_ { [$] => { $ crate :: SyntaxKind :: DOLLAR } ; [;] => { $ crate :: SyntaxKind :: SEMICOLON } ; [,] => { $ crate :: SyntaxKind :: COMMA } ; ['('] => { $ crate :: SyntaxKind :: L_PAREN } ; [')'] => { $ crate :: SyntaxKind :: R_PAREN } ; ['{'] => { $ crate :: SyntaxKind :: L_CURLY } ; ['}'] => { $ crate :: SyntaxKind :: R_CURLY } ; ['['] => { $ crate :: SyntaxKind :: L_BRACK } ; [']'] => { $ crate :: SyntaxKind :: R_BRACK } ; [<] => { $ crate :: SyntaxKind :: L_ANGLE } ; [>] => { $ crate :: SyntaxKind :: R_ANGLE } ; [@] => { $ crate :: SyntaxKind :: AT } ; [#] => { $ crate :: SyntaxKind :: POUND } ; [~] => { $ crate :: SyntaxKind :: TILDE } ; [?] => { $ crate :: SyntaxKind :: QUESTION } ; [&] => { $ crate :: SyntaxKind :: AMP } ; [|] => { $ crate :: SyntaxKind :: PIPE } ; [+] => { $ crate :: SyntaxKind :: PLUS } ; [*] => { $ crate :: SyntaxKind :: STAR } ; [/] => { $ crate :: SyntaxKind :: SLASH } ; [^] => { $ crate :: SyntaxKind :: CARET } ; [%] => { $ crate :: SyntaxKind :: PERCENT } ; [_] => { $ crate :: SyntaxKind :: UNDERSCORE } ; [.] => { $ crate :: SyntaxKind :: DOT } ; [..] => { $ crate :: SyntaxKind :: DOT2 } ; [...] => { $ crate :: SyntaxKind :: DOT3 } ; [..=] => { $ crate :: SyntaxKind :: DOT2EQ } ; [:] => { $ crate :: SyntaxKind :: COLON } ; [::] => { $ crate :: SyntaxKind :: COLON2 } ; [=] => { $ crate :: SyntaxKind :: EQ } ; [==] => { $ crate :: SyntaxKind :: EQ2 } ; [=>] => { $ crate :: SyntaxKind :: FAT_ARROW } ; [!] => { $ crate :: SyntaxKind :: BANG } ; [!=] => { $ crate :: SyntaxKind :: NEQ } ; [-] => { $ crate :: SyntaxKind :: MINUS } ; [->] => { $ crate :: SyntaxKind :: THIN_ARROW } ; [<=] => { $ crate :: SyntaxKind :: LTEQ } ; [>=] => { $ crate :: SyntaxKind :: GTEQ } ; [+=] => { $ crate :: SyntaxKind :: PLUSEQ } ; [-=] => { $ crate :: SyntaxKind :: MINUSEQ } ; [|=] => { $ crate :: SyntaxKind :: PIPEEQ } ; [&=] => { $ crate :: SyntaxKind :: AMPEQ } ; [^=] => { $ crate :: SyntaxKind :: CARETEQ } ; [/=] => { $ crate :: SyntaxKind :: SLASHEQ } ; [*=] => { $ crate :: SyntaxKind :: STAREQ } ; [%=] => { $ crate :: SyntaxKind :: PERCENTEQ } ; [&&] => { $ crate :: SyntaxKind :: AMP2 } ; [||] => { $ crate :: SyntaxKind :: PIPE2 } ; [<<] => { $ crate :: SyntaxKind :: SHL } ; [>>] => { $ crate :: SyntaxKind :: SHR } ; [<<=] => { $ crate :: SyntaxKind :: SHLEQ } ; [>>=] => { $ crate :: SyntaxKind :: SHREQ } ; [Self] => { $ crate :: SyntaxKind :: SELF_TYPE_KW } ; [abstract] => { $ crate :: SyntaxKind :: ABSTRACT_KW } ; [as] => { $ crate :: SyntaxKind :: AS_KW } ; [become] => { $ crate :: SyntaxKind :: BECOME_KW } ; [box] => { $ crate :: SyntaxKind :: BOX_KW } ; [break] => { $ crate :: SyntaxKind :: BREAK_KW } ; [const] => { $ crate :: SyntaxKind :: CONST_KW } ; [continue] => { $ crate :: SyntaxKind :: CONTINUE_KW } ; [crate] => { $ crate :: SyntaxKind :: CRATE_KW } ; [do] => { $ crate :: SyntaxKind :: DO_KW } ; [else] => { $ crate :: SyntaxKind :: ELSE_KW } ; [enum] => { $ crate :: SyntaxKind :: ENUM_KW } ; [extern] => { $ crate :: SyntaxKind :: EXTERN_KW } ; [false] => { $ crate :: SyntaxKind :: FALSE_KW } ; [final] => { $ crate :: SyntaxKind :: FINAL_KW } ; [fn] => { $ crate :: SyntaxKind :: FN_KW } ; [for] => { $ crate :: SyntaxKind :: FOR_KW } ; [if] => { $ crate :: SyntaxKind :: IF_KW } ; [impl] => { $ crate :: SyntaxKind :: IMPL_KW } ; [in] => { $ crate :: SyntaxKind :: IN_KW } ; [let] => { $ crate :: SyntaxKind :: LET_KW } ; [loop] => { $ crate :: SyntaxKind :: LOOP_KW } ; [macro] => { $ crate :: SyntaxKind :: MACRO_KW } ; [match] => { $ crate :: SyntaxKind :: MATCH_KW } ; [mod] => { $ crate :: SyntaxKind :: MOD_KW } ; [move] => { $ crate :: SyntaxKind :: MOVE_KW } ; [mut] => { $ crate :: SyntaxKind :: MUT_KW } ; [override] => { $ crate :: SyntaxKind :: OVERRIDE_KW } ; [priv] => { $ crate :: SyntaxKind :: PRIV_KW } ; [pub] => { $ crate :: SyntaxKind :: PUB_KW } ; [ref] => { $ crate :: SyntaxKind :: REF_KW } ; [return] => { $ crate :: SyntaxKind :: RETURN_KW } ; [self] => { $ crate :: SyntaxKind :: SELF_KW } ; [static] => { $ crate :: SyntaxKind :: STATIC_KW } ; [struct] => { $ crate :: SyntaxKind :: STRUCT_KW } ; [super] => { $ crate :: SyntaxKind :: SUPER_KW } ; [trait] => { $ crate :: SyntaxKind :: TRAIT_KW } ; [true] => { $ crate :: SyntaxKind :: TRUE_KW } ; [type] => { $ crate :: SyntaxKind :: TYPE_KW } ; [typeof] => { $ crate :: SyntaxKind :: TYPEOF_KW } ; [unsafe] => { $ crate :: SyntaxKind :: UNSAFE_KW } ; [unsized] => { $ crate :: SyntaxKind :: UNSIZED_KW } ; [use] => { $ crate :: SyntaxKind :: USE_KW } ; [virtual] => { $ crate :: SyntaxKind :: VIRTUAL_KW } ; [where] => { $ crate :: SyntaxKind :: WHERE_KW } ; [while] => { $ crate :: SyntaxKind :: WHILE_KW } ; [yield] => { $ crate :: SyntaxKind :: YIELD_KW } ; [asm] => { $ crate :: SyntaxKind :: ASM_KW } ; [att_syntax] => { $ crate :: SyntaxKind :: ATT_SYNTAX_KW } ; [auto] => { $ crate :: SyntaxKind :: AUTO_KW } ; [builtin] => { $ crate :: SyntaxKind :: BUILTIN_KW } ; [clobber_abi] => { $ crate :: SyntaxKind :: CLOBBER_ABI_KW } ; [default] => { $ crate :: SyntaxKind :: DEFAULT_KW } ; [dyn] => { $ crate :: SyntaxKind :: DYN_KW } ; [format_args] => { $ crate :: SyntaxKind :: FORMAT_ARGS_KW } ; [inlateout] => { $ crate :: SyntaxKind :: INLATEOUT_KW } ; [inout] => { $ crate :: SyntaxKind :: INOUT_KW } ; [label] => { $ crate :: SyntaxKind :: LABEL_KW } ; [lateout] => { $ crate :: SyntaxKind :: LATEOUT_KW } ; [macro_rules] => { $ crate :: SyntaxKind :: MACRO_RULES_KW } ; [may_unwind] => { $ crate :: SyntaxKind :: MAY_UNWIND_KW } ; [nomem] => { $ crate :: SyntaxKind :: NOMEM_KW } ; [noreturn] => { $ crate :: SyntaxKind :: NORETURN_KW } ; [nostack] => { $ crate :: SyntaxKind :: NOSTACK_KW } ; [offset_of] => { $ crate :: SyntaxKind :: OFFSET_OF_KW } ; [options] => { $ crate :: SyntaxKind :: OPTIONS_KW } ; [out] => { $ crate :: SyntaxKind :: OUT_KW } ; [preserves_flags] => { $ crate :: SyntaxKind :: PRESERVES_FLAGS_KW } ; [pure] => { $ crate :: SyntaxKind :: PURE_KW } ; [raw] => { $ crate :: SyntaxKind :: RAW_KW } ; [readonly] => { $ crate :: SyntaxKind :: READONLY_KW } ; [safe] => { $ crate :: SyntaxKind :: SAFE_KW } ; [sym] => { $ crate :: SyntaxKind :: SYM_KW } ; [union] => { $ crate :: SyntaxKind :: UNION_KW } ; [yeet] => { $ crate :: SyntaxKind :: YEET_KW } ; [async] => { $ crate :: SyntaxKind :: ASYNC_KW } ; [await] => { $ crate :: SyntaxKind :: AWAIT_KW } ; [dyn] => { $ crate :: SyntaxKind :: DYN_KW } ; [gen] => { $ crate :: SyntaxKind :: GEN_KW } ; [try] => { $ crate :: SyntaxKind :: TRY_KW } ; [lifetime_ident] => { $ crate :: SyntaxKind :: LIFETIME_IDENT } ; [int_number] => { $ crate :: SyntaxKind :: INT_NUMBER } ; [ident] => { $ crate :: SyntaxKind :: IDENT } ; [string] => { $ crate :: SyntaxKind :: STRING } ; [shebang] => { $ crate :: SyntaxKind :: SHEBANG } ; [frontmatter] => { $ crate :: SyntaxKind :: FRONTMATTER } ; } +macro_rules ! T_ { [$] => { $ crate :: SyntaxKind :: DOLLAR } ; [;] => { $ crate :: SyntaxKind :: SEMICOLON } ; [,] => { $ crate :: SyntaxKind :: COMMA } ; ['('] => { $ crate :: SyntaxKind :: L_PAREN } ; [')'] => { $ crate :: SyntaxKind :: R_PAREN } ; ['{'] => { $ crate :: SyntaxKind :: L_CURLY } ; ['}'] => { $ crate :: SyntaxKind :: R_CURLY } ; ['['] => { $ crate :: SyntaxKind :: L_BRACK } ; [']'] => { $ crate :: SyntaxKind :: R_BRACK } ; [<] => { $ crate :: SyntaxKind :: L_ANGLE } ; [>] => { $ crate :: SyntaxKind :: R_ANGLE } ; [@] => { $ crate :: SyntaxKind :: AT } ; [#] => { $ crate :: SyntaxKind :: POUND } ; [~] => { $ crate :: SyntaxKind :: TILDE } ; [?] => { $ crate :: SyntaxKind :: QUESTION } ; [&] => { $ crate :: SyntaxKind :: AMP } ; [|] => { $ crate :: SyntaxKind :: PIPE } ; [+] => { $ crate :: SyntaxKind :: PLUS } ; [*] => { $ crate :: SyntaxKind :: STAR } ; [/] => { $ crate :: SyntaxKind :: SLASH } ; [^] => { $ crate :: SyntaxKind :: CARET } ; [%] => { $ crate :: SyntaxKind :: PERCENT } ; [_] => { $ crate :: SyntaxKind :: UNDERSCORE } ; [.] => { $ crate :: SyntaxKind :: DOT } ; [..] => { $ crate :: SyntaxKind :: DOT2 } ; [...] => { $ crate :: SyntaxKind :: DOT3 } ; [..=] => { $ crate :: SyntaxKind :: DOT2EQ } ; [:] => { $ crate :: SyntaxKind :: COLON } ; [::] => { $ crate :: SyntaxKind :: COLON2 } ; [=] => { $ crate :: SyntaxKind :: EQ } ; [==] => { $ crate :: SyntaxKind :: EQ2 } ; [=>] => { $ crate :: SyntaxKind :: FAT_ARROW } ; [!] => { $ crate :: SyntaxKind :: BANG } ; [!=] => { $ crate :: SyntaxKind :: NEQ } ; [-] => { $ crate :: SyntaxKind :: MINUS } ; [->] => { $ crate :: SyntaxKind :: THIN_ARROW } ; [<=] => { $ crate :: SyntaxKind :: LTEQ } ; [>=] => { $ crate :: SyntaxKind :: GTEQ } ; [+=] => { $ crate :: SyntaxKind :: PLUSEQ } ; [-=] => { $ crate :: SyntaxKind :: MINUSEQ } ; [|=] => { $ crate :: SyntaxKind :: PIPEEQ } ; [&=] => { $ crate :: SyntaxKind :: AMPEQ } ; [^=] => { $ crate :: SyntaxKind :: CARETEQ } ; [/=] => { $ crate :: SyntaxKind :: SLASHEQ } ; [*=] => { $ crate :: SyntaxKind :: STAREQ } ; [%=] => { $ crate :: SyntaxKind :: PERCENTEQ } ; [&&] => { $ crate :: SyntaxKind :: AMP2 } ; [||] => { $ crate :: SyntaxKind :: PIPE2 } ; [<<] => { $ crate :: SyntaxKind :: SHL } ; [>>] => { $ crate :: SyntaxKind :: SHR } ; [<<=] => { $ crate :: SyntaxKind :: SHLEQ } ; [>>=] => { $ crate :: SyntaxKind :: SHREQ } ; [Self] => { $ crate :: SyntaxKind :: SELF_TYPE_KW } ; [abstract] => { $ crate :: SyntaxKind :: ABSTRACT_KW } ; [as] => { $ crate :: SyntaxKind :: AS_KW } ; [become] => { $ crate :: SyntaxKind :: BECOME_KW } ; [box] => { $ crate :: SyntaxKind :: BOX_KW } ; [break] => { $ crate :: SyntaxKind :: BREAK_KW } ; [const] => { $ crate :: SyntaxKind :: CONST_KW } ; [continue] => { $ crate :: SyntaxKind :: CONTINUE_KW } ; [crate] => { $ crate :: SyntaxKind :: CRATE_KW } ; [do] => { $ crate :: SyntaxKind :: DO_KW } ; [else] => { $ crate :: SyntaxKind :: ELSE_KW } ; [enum] => { $ crate :: SyntaxKind :: ENUM_KW } ; [extern] => { $ crate :: SyntaxKind :: EXTERN_KW } ; [false] => { $ crate :: SyntaxKind :: FALSE_KW } ; [final] => { $ crate :: SyntaxKind :: FINAL_KW } ; [fn] => { $ crate :: SyntaxKind :: FN_KW } ; [for] => { $ crate :: SyntaxKind :: FOR_KW } ; [if] => { $ crate :: SyntaxKind :: IF_KW } ; [impl] => { $ crate :: SyntaxKind :: IMPL_KW } ; [in] => { $ crate :: SyntaxKind :: IN_KW } ; [let] => { $ crate :: SyntaxKind :: LET_KW } ; [loop] => { $ crate :: SyntaxKind :: LOOP_KW } ; [macro] => { $ crate :: SyntaxKind :: MACRO_KW } ; [match] => { $ crate :: SyntaxKind :: MATCH_KW } ; [mod] => { $ crate :: SyntaxKind :: MOD_KW } ; [move] => { $ crate :: SyntaxKind :: MOVE_KW } ; [mut] => { $ crate :: SyntaxKind :: MUT_KW } ; [override] => { $ crate :: SyntaxKind :: OVERRIDE_KW } ; [priv] => { $ crate :: SyntaxKind :: PRIV_KW } ; [pub] => { $ crate :: SyntaxKind :: PUB_KW } ; [ref] => { $ crate :: SyntaxKind :: REF_KW } ; [return] => { $ crate :: SyntaxKind :: RETURN_KW } ; [self] => { $ crate :: SyntaxKind :: SELF_KW } ; [static] => { $ crate :: SyntaxKind :: STATIC_KW } ; [struct] => { $ crate :: SyntaxKind :: STRUCT_KW } ; [super] => { $ crate :: SyntaxKind :: SUPER_KW } ; [trait] => { $ crate :: SyntaxKind :: TRAIT_KW } ; [true] => { $ crate :: SyntaxKind :: TRUE_KW } ; [type] => { $ crate :: SyntaxKind :: TYPE_KW } ; [typeof] => { $ crate :: SyntaxKind :: TYPEOF_KW } ; [unsafe] => { $ crate :: SyntaxKind :: UNSAFE_KW } ; [unsized] => { $ crate :: SyntaxKind :: UNSIZED_KW } ; [use] => { $ crate :: SyntaxKind :: USE_KW } ; [virtual] => { $ crate :: SyntaxKind :: VIRTUAL_KW } ; [where] => { $ crate :: SyntaxKind :: WHERE_KW } ; [while] => { $ crate :: SyntaxKind :: WHILE_KW } ; [yield] => { $ crate :: SyntaxKind :: YIELD_KW } ; [asm] => { $ crate :: SyntaxKind :: ASM_KW } ; [att_syntax] => { $ crate :: SyntaxKind :: ATT_SYNTAX_KW } ; [auto] => { $ crate :: SyntaxKind :: AUTO_KW } ; [builtin] => { $ crate :: SyntaxKind :: BUILTIN_KW } ; [clobber_abi] => { $ crate :: SyntaxKind :: CLOBBER_ABI_KW } ; [default] => { $ crate :: SyntaxKind :: DEFAULT_KW } ; [dyn] => { $ crate :: SyntaxKind :: DYN_KW } ; [format_args] => { $ crate :: SyntaxKind :: FORMAT_ARGS_KW } ; [global_asm] => { $ crate :: SyntaxKind :: GLOBAL_ASM_KW } ; [inlateout] => { $ crate :: SyntaxKind :: INLATEOUT_KW } ; [inout] => { $ crate :: SyntaxKind :: INOUT_KW } ; [label] => { $ crate :: SyntaxKind :: LABEL_KW } ; [lateout] => { $ crate :: SyntaxKind :: LATEOUT_KW } ; [macro_rules] => { $ crate :: SyntaxKind :: MACRO_RULES_KW } ; [may_unwind] => { $ crate :: SyntaxKind :: MAY_UNWIND_KW } ; [naked_asm] => { $ crate :: SyntaxKind :: NAKED_ASM_KW } ; [nomem] => { $ crate :: SyntaxKind :: NOMEM_KW } ; [noreturn] => { $ crate :: SyntaxKind :: NORETURN_KW } ; [nostack] => { $ crate :: SyntaxKind :: NOSTACK_KW } ; [offset_of] => { $ crate :: SyntaxKind :: OFFSET_OF_KW } ; [options] => { $ crate :: SyntaxKind :: OPTIONS_KW } ; [out] => { $ crate :: SyntaxKind :: OUT_KW } ; [preserves_flags] => { $ crate :: SyntaxKind :: PRESERVES_FLAGS_KW } ; [pure] => { $ crate :: SyntaxKind :: PURE_KW } ; [raw] => { $ crate :: SyntaxKind :: RAW_KW } ; [readonly] => { $ crate :: SyntaxKind :: READONLY_KW } ; [safe] => { $ crate :: SyntaxKind :: SAFE_KW } ; [sym] => { $ crate :: SyntaxKind :: SYM_KW } ; [union] => { $ crate :: SyntaxKind :: UNION_KW } ; [yeet] => { $ crate :: SyntaxKind :: YEET_KW } ; [async] => { $ crate :: SyntaxKind :: ASYNC_KW } ; [await] => { $ crate :: SyntaxKind :: AWAIT_KW } ; [dyn] => { $ crate :: SyntaxKind :: DYN_KW } ; [gen] => { $ crate :: SyntaxKind :: GEN_KW } ; [try] => { $ crate :: SyntaxKind :: TRY_KW } ; [lifetime_ident] => { $ crate :: SyntaxKind :: LIFETIME_IDENT } ; [int_number] => { $ crate :: SyntaxKind :: INT_NUMBER } ; [ident] => { $ crate :: SyntaxKind :: IDENT } ; [string] => { $ crate :: SyntaxKind :: STRING } ; [shebang] => { $ crate :: SyntaxKind :: SHEBANG } ; [frontmatter] => { $ crate :: SyntaxKind :: FRONTMATTER } ; } impl ::core::marker::Copy for SyntaxKind {} impl ::core::clone::Clone for SyntaxKind { #[inline] diff --git a/src/tools/rust-analyzer/crates/parser/test_data/generated/runner.rs b/src/tools/rust-analyzer/crates/parser/test_data/generated/runner.rs index 6ec4192830b..cef7b0ee239 100644 --- a/src/tools/rust-analyzer/crates/parser/test_data/generated/runner.rs +++ b/src/tools/rust-analyzer/crates/parser/test_data/generated/runner.rs @@ -21,6 +21,8 @@ mod ok { #[test] fn asm_expr() { run_and_expect_no_errors("test_data/parser/inline/ok/asm_expr.rs"); } #[test] + fn asm_kinds() { run_and_expect_no_errors("test_data/parser/inline/ok/asm_kinds.rs"); } + #[test] fn asm_label() { run_and_expect_no_errors("test_data/parser/inline/ok/asm_label.rs"); } #[test] fn assoc_const_eq() { @@ -298,6 +300,8 @@ mod ok { run_and_expect_no_errors("test_data/parser/inline/ok/generic_param_list.rs"); } #[test] + fn global_asm() { run_and_expect_no_errors("test_data/parser/inline/ok/global_asm.rs"); } + #[test] fn half_open_range_pat() { run_and_expect_no_errors("test_data/parser/inline/ok/half_open_range_pat.rs"); } diff --git a/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/asm_kinds.rast b/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/asm_kinds.rast new file mode 100644 index 00000000000..c337d89aa50 --- /dev/null +++ b/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/asm_kinds.rast @@ -0,0 +1,48 @@ +SOURCE_FILE + FN + FN_KW "fn" + WHITESPACE " " + NAME + IDENT "foo" + PARAM_LIST + L_PAREN "(" + R_PAREN ")" + WHITESPACE " " + BLOCK_EXPR + STMT_LIST + L_CURLY "{" + WHITESPACE "\n " + EXPR_STMT + ASM_EXPR + BUILTIN_KW "builtin" + POUND "#" + ASM_KW "asm" + L_PAREN "(" + LITERAL + STRING "\"\"" + R_PAREN ")" + SEMICOLON ";" + WHITESPACE "\n " + ASM_EXPR + BUILTIN_KW "builtin" + POUND "#" + GLOBAL_ASM_KW "global_asm" + L_PAREN "(" + LITERAL + STRING "\"\"" + R_PAREN ")" + SEMICOLON ";" + WHITESPACE "\n " + EXPR_STMT + ASM_EXPR + BUILTIN_KW "builtin" + POUND "#" + NAKED_ASM_KW "naked_asm" + L_PAREN "(" + LITERAL + STRING "\"\"" + R_PAREN ")" + SEMICOLON ";" + WHITESPACE "\n" + R_CURLY "}" + WHITESPACE "\n" diff --git a/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/asm_kinds.rs b/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/asm_kinds.rs new file mode 100644 index 00000000000..9c03e9de689 --- /dev/null +++ b/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/asm_kinds.rs @@ -0,0 +1,5 @@ +fn foo() { + builtin#asm(""); + builtin#global_asm(""); + builtin#naked_asm(""); +} diff --git a/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/global_asm.rast b/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/global_asm.rast new file mode 100644 index 00000000000..5337c56be17 --- /dev/null +++ b/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/global_asm.rast @@ -0,0 +1,10 @@ +SOURCE_FILE + ASM_EXPR + BUILTIN_KW "builtin" + POUND "#" + GLOBAL_ASM_KW "global_asm" + L_PAREN "(" + LITERAL + STRING "\"\"" + R_PAREN ")" + WHITESPACE "\n" diff --git a/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/global_asm.rs b/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/global_asm.rs new file mode 100644 index 00000000000..967ce1f5fd9 --- /dev/null +++ b/src/tools/rust-analyzer/crates/parser/test_data/parser/inline/ok/global_asm.rs @@ -0,0 +1 @@ +builtin#global_asm("") diff --git a/src/tools/rust-analyzer/crates/project-model/src/cargo_config_file.rs b/src/tools/rust-analyzer/crates/project-model/src/cargo_config_file.rs new file mode 100644 index 00000000000..7966f74df30 --- /dev/null +++ b/src/tools/rust-analyzer/crates/project-model/src/cargo_config_file.rs @@ -0,0 +1,34 @@ +//! Read `.cargo/config.toml` as a JSON object +use rustc_hash::FxHashMap; +use toolchain::Tool; + +use crate::{ManifestPath, Sysroot, utf8_stdout}; + +pub(crate) type CargoConfigFile = serde_json::Map<String, serde_json::Value>; + +pub(crate) fn read( + manifest: &ManifestPath, + extra_env: &FxHashMap<String, Option<String>>, + sysroot: &Sysroot, +) -> Option<CargoConfigFile> { + let mut cargo_config = sysroot.tool(Tool::Cargo, manifest.parent(), extra_env); + cargo_config + .args(["-Z", "unstable-options", "config", "get", "--format", "json"]) + .env("RUSTC_BOOTSTRAP", "1"); + if manifest.is_rust_manifest() { + cargo_config.arg("-Zscript"); + } + + tracing::debug!("Discovering cargo config by {:?}", cargo_config); + let json: serde_json::Map<String, serde_json::Value> = utf8_stdout(&mut cargo_config) + .inspect(|json| { + tracing::debug!("Discovered cargo config: {:?}", json); + }) + .inspect_err(|err| { + tracing::debug!("Failed to discover cargo config: {:?}", err); + }) + .ok() + .and_then(|stdout| serde_json::from_str(&stdout).ok())?; + + Some(json) +} 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 4bacc904174..daadcd9d79a 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 @@ -300,8 +300,6 @@ pub struct CargoMetadataConfig { pub extra_args: Vec<String>, /// Extra env vars to set when invoking the cargo command pub extra_env: FxHashMap<String, Option<String>>, - /// The target dir for this workspace load. - pub target_dir: Utf8PathBuf, /// What kind of metadata are we fetching: workspace, rustc, or sysroot. pub kind: &'static str, /// The toolchain version, if known. @@ -317,188 +315,6 @@ struct PackageMetadata { } impl CargoWorkspace { - /// Fetches the metadata for the given `cargo_toml` manifest. - /// A successful result may contain another metadata error if the initial fetching failed but - /// the `--no-deps` retry succeeded. - /// - /// The sysroot is used to set the `RUSTUP_TOOLCHAIN` env var when invoking cargo - /// to ensure that the rustup proxy uses the correct toolchain. - pub fn fetch_metadata( - cargo_toml: &ManifestPath, - current_dir: &AbsPath, - config: &CargoMetadataConfig, - sysroot: &Sysroot, - no_deps: bool, - locked: bool, - progress: &dyn Fn(String), - ) -> anyhow::Result<(cargo_metadata::Metadata, Option<anyhow::Error>)> { - let res = Self::fetch_metadata_( - cargo_toml, - current_dir, - config, - sysroot, - no_deps, - locked, - progress, - ); - if let Ok((_, Some(ref e))) = res { - tracing::warn!( - %cargo_toml, - ?e, - "`cargo metadata` failed, but retry with `--no-deps` succeeded" - ); - } - res - } - - fn fetch_metadata_( - cargo_toml: &ManifestPath, - current_dir: &AbsPath, - config: &CargoMetadataConfig, - sysroot: &Sysroot, - no_deps: bool, - locked: bool, - progress: &dyn Fn(String), - ) -> anyhow::Result<(cargo_metadata::Metadata, Option<anyhow::Error>)> { - let cargo = sysroot.tool(Tool::Cargo, current_dir, &config.extra_env); - let mut meta = MetadataCommand::new(); - meta.cargo_path(cargo.get_program()); - cargo.get_envs().for_each(|(var, val)| _ = meta.env(var, val.unwrap_or_default())); - meta.manifest_path(cargo_toml.to_path_buf()); - match &config.features { - CargoFeatures::All => { - meta.features(CargoOpt::AllFeatures); - } - CargoFeatures::Selected { features, no_default_features } => { - if *no_default_features { - meta.features(CargoOpt::NoDefaultFeatures); - } - if !features.is_empty() { - meta.features(CargoOpt::SomeFeatures(features.clone())); - } - } - } - meta.current_dir(current_dir); - - let mut other_options = vec![]; - // cargo metadata only supports a subset of flags of what cargo usually accepts, and usually - // the only relevant flags for metadata here are unstable ones, so we pass those along - // but nothing else - let mut extra_args = config.extra_args.iter(); - while let Some(arg) = extra_args.next() { - if arg == "-Z" { - if let Some(arg) = extra_args.next() { - other_options.push("-Z".to_owned()); - other_options.push(arg.to_owned()); - } - } - } - - if !config.targets.is_empty() { - other_options.extend( - config.targets.iter().flat_map(|it| ["--filter-platform".to_owned(), it.clone()]), - ); - } - if no_deps { - other_options.push("--no-deps".to_owned()); - } - - let mut using_lockfile_copy = false; - // The manifest is a rust file, so this means its a script manifest - if cargo_toml.is_rust_manifest() { - other_options.push("-Zscript".to_owned()); - } else if config - .toolchain_version - .as_ref() - .is_some_and(|v| *v >= MINIMUM_TOOLCHAIN_VERSION_SUPPORTING_LOCKFILE_PATH) - { - let lockfile = <_ as AsRef<Utf8Path>>::as_ref(cargo_toml).with_extension("lock"); - let target_lockfile = config - .target_dir - .join("rust-analyzer") - .join("metadata") - .join(config.kind) - .join("Cargo.lock"); - match std::fs::copy(&lockfile, &target_lockfile) { - Ok(_) => { - using_lockfile_copy = true; - other_options.push("--lockfile-path".to_owned()); - other_options.push(target_lockfile.to_string()); - } - Err(e) if e.kind() == std::io::ErrorKind::NotFound => { - // There exists no lockfile yet - using_lockfile_copy = true; - other_options.push("--lockfile-path".to_owned()); - other_options.push(target_lockfile.to_string()); - } - Err(e) => { - tracing::warn!( - "Failed to copy lock file from `{lockfile}` to `{target_lockfile}`: {e}", - ); - } - } - } - if using_lockfile_copy { - other_options.push("-Zunstable-options".to_owned()); - meta.env("RUSTC_BOOTSTRAP", "1"); - } - // No need to lock it if we copied the lockfile, we won't modify the original after all/ - // This way cargo cannot error out on us if the lockfile requires updating. - if !using_lockfile_copy && locked { - other_options.push("--locked".to_owned()); - } - meta.other_options(other_options); - - // FIXME: Fetching metadata is a slow process, as it might require - // calling crates.io. We should be reporting progress here, but it's - // unclear whether cargo itself supports it. - progress("cargo metadata: started".to_owned()); - - let res = (|| -> anyhow::Result<(_, _)> { - let mut errored = false; - let output = - spawn_with_streaming_output(meta.cargo_command(), &mut |_| (), &mut |line| { - errored = errored || line.starts_with("error") || line.starts_with("warning"); - if errored { - progress("cargo metadata: ?".to_owned()); - return; - } - progress(format!("cargo metadata: {line}")); - })?; - if !output.status.success() { - progress(format!("cargo metadata: failed {}", output.status)); - let error = cargo_metadata::Error::CargoMetadata { - stderr: String::from_utf8(output.stderr)?, - } - .into(); - if !no_deps { - // If we failed to fetch metadata with deps, try again without them. - // This makes r-a still work partially when offline. - if let Ok((metadata, _)) = Self::fetch_metadata_( - cargo_toml, - current_dir, - config, - sysroot, - true, - locked, - progress, - ) { - return Ok((metadata, Some(error))); - } - } - return Err(error); - } - let stdout = from_utf8(&output.stdout)? - .lines() - .find(|line| line.starts_with('{')) - .ok_or(cargo_metadata::Error::NoJson)?; - Ok((cargo_metadata::MetadataCommand::parse(stdout)?, None)) - })() - .with_context(|| format!("Failed to run `{:?}`", meta.cargo_command())); - progress("cargo metadata: finished".to_owned()); - res - } - pub fn new( mut meta: cargo_metadata::Metadata, ws_manifest_path: ManifestPath, @@ -733,3 +549,214 @@ impl CargoWorkspace { self.requires_rustc_private } } + +pub(crate) struct FetchMetadata { + command: cargo_metadata::MetadataCommand, + lockfile_path: Option<Utf8PathBuf>, + kind: &'static str, + no_deps: bool, + no_deps_result: anyhow::Result<cargo_metadata::Metadata>, + other_options: Vec<String>, +} + +impl FetchMetadata { + /// Builds a command to fetch metadata for the given `cargo_toml` manifest. + /// + /// Performs a lightweight pre-fetch using the `--no-deps` option, + /// available via [`FetchMetadata::no_deps_metadata`], to gather basic + /// information such as the `target-dir`. + /// + /// The provided sysroot is used to set the `RUSTUP_TOOLCHAIN` + /// environment variable when invoking Cargo, ensuring that the + /// rustup proxy selects the correct toolchain. + pub(crate) fn new( + cargo_toml: &ManifestPath, + current_dir: &AbsPath, + config: &CargoMetadataConfig, + sysroot: &Sysroot, + no_deps: bool, + ) -> Self { + let cargo = sysroot.tool(Tool::Cargo, current_dir, &config.extra_env); + let mut command = MetadataCommand::new(); + command.cargo_path(cargo.get_program()); + cargo.get_envs().for_each(|(var, val)| _ = command.env(var, val.unwrap_or_default())); + command.manifest_path(cargo_toml.to_path_buf()); + match &config.features { + CargoFeatures::All => { + command.features(CargoOpt::AllFeatures); + } + CargoFeatures::Selected { features, no_default_features } => { + if *no_default_features { + command.features(CargoOpt::NoDefaultFeatures); + } + if !features.is_empty() { + command.features(CargoOpt::SomeFeatures(features.clone())); + } + } + } + command.current_dir(current_dir); + + let mut needs_nightly = false; + let mut other_options = vec![]; + // cargo metadata only supports a subset of flags of what cargo usually accepts, and usually + // the only relevant flags for metadata here are unstable ones, so we pass those along + // but nothing else + let mut extra_args = config.extra_args.iter(); + while let Some(arg) = extra_args.next() { + if arg == "-Z" { + if let Some(arg) = extra_args.next() { + needs_nightly = true; + other_options.push("-Z".to_owned()); + other_options.push(arg.to_owned()); + } + } + } + + let mut lockfile_path = None; + if cargo_toml.is_rust_manifest() { + needs_nightly = true; + other_options.push("-Zscript".to_owned()); + } else if config + .toolchain_version + .as_ref() + .is_some_and(|v| *v >= MINIMUM_TOOLCHAIN_VERSION_SUPPORTING_LOCKFILE_PATH) + { + lockfile_path = Some(<_ as AsRef<Utf8Path>>::as_ref(cargo_toml).with_extension("lock")); + } + + if !config.targets.is_empty() { + other_options.extend( + config.targets.iter().flat_map(|it| ["--filter-platform".to_owned(), it.clone()]), + ); + } + + command.other_options(other_options.clone()); + + if needs_nightly { + command.env("RUSTC_BOOTSTRAP", "1"); + } + + // Pre-fetch basic metadata using `--no-deps`, which: + // - avoids fetching registries like crates.io, + // - skips dependency resolution and does not modify lockfiles, + // - and thus doesn't require progress reporting or copying lockfiles. + // + // Useful as a fast fallback to extract info like `target-dir`. + let cargo_command; + let no_deps_result = if no_deps { + command.no_deps(); + cargo_command = command.cargo_command(); + command.exec() + } else { + let mut no_deps_command = command.clone(); + no_deps_command.no_deps(); + cargo_command = no_deps_command.cargo_command(); + no_deps_command.exec() + } + .with_context(|| format!("Failed to run `{cargo_command:?}`")); + + Self { command, lockfile_path, kind: config.kind, no_deps, no_deps_result, other_options } + } + + pub(crate) fn no_deps_metadata(&self) -> Option<&cargo_metadata::Metadata> { + self.no_deps_result.as_ref().ok() + } + + /// Executes the metadata-fetching command. + /// + /// A successful result may still contain a metadata error if the full fetch failed, + /// but the fallback `--no-deps` pre-fetch succeeded during command construction. + pub(crate) fn exec( + self, + target_dir: &Utf8Path, + locked: bool, + progress: &dyn Fn(String), + ) -> anyhow::Result<(cargo_metadata::Metadata, Option<anyhow::Error>)> { + let Self { mut command, lockfile_path, kind, no_deps, no_deps_result, mut other_options } = + self; + + if no_deps { + return no_deps_result.map(|m| (m, None)); + } + + let mut using_lockfile_copy = false; + // The manifest is a rust file, so this means its a script manifest + if let Some(lockfile) = lockfile_path { + let target_lockfile = + target_dir.join("rust-analyzer").join("metadata").join(kind).join("Cargo.lock"); + match std::fs::copy(&lockfile, &target_lockfile) { + Ok(_) => { + using_lockfile_copy = true; + other_options.push("--lockfile-path".to_owned()); + other_options.push(target_lockfile.to_string()); + } + Err(e) if e.kind() == std::io::ErrorKind::NotFound => { + // There exists no lockfile yet + using_lockfile_copy = true; + other_options.push("--lockfile-path".to_owned()); + other_options.push(target_lockfile.to_string()); + } + Err(e) => { + tracing::warn!( + "Failed to copy lock file from `{lockfile}` to `{target_lockfile}`: {e}", + ); + } + } + } + if using_lockfile_copy { + other_options.push("-Zunstable-options".to_owned()); + command.env("RUSTC_BOOTSTRAP", "1"); + } + // No need to lock it if we copied the lockfile, we won't modify the original after all/ + // This way cargo cannot error out on us if the lockfile requires updating. + if !using_lockfile_copy && locked { + other_options.push("--locked".to_owned()); + } + command.other_options(other_options); + + // FIXME: Fetching metadata is a slow process, as it might require + // calling crates.io. We should be reporting progress here, but it's + // unclear whether cargo itself supports it. + progress("cargo metadata: started".to_owned()); + + let res = (|| -> anyhow::Result<(_, _)> { + let mut errored = false; + let output = + spawn_with_streaming_output(command.cargo_command(), &mut |_| (), &mut |line| { + errored = errored || line.starts_with("error") || line.starts_with("warning"); + if errored { + progress("cargo metadata: ?".to_owned()); + return; + } + progress(format!("cargo metadata: {line}")); + })?; + if !output.status.success() { + progress(format!("cargo metadata: failed {}", output.status)); + let error = cargo_metadata::Error::CargoMetadata { + stderr: String::from_utf8(output.stderr)?, + } + .into(); + if !no_deps { + // If we failed to fetch metadata with deps, return pre-fetched result without them. + // This makes r-a still work partially when offline. + if let Ok(metadata) = no_deps_result { + tracing::warn!( + ?error, + "`cargo metadata` failed and returning succeeded result with `--no-deps`" + ); + return Ok((metadata, Some(error))); + } + } + return Err(error); + } + let stdout = from_utf8(&output.stdout)? + .lines() + .find(|line| line.starts_with('{')) + .ok_or(cargo_metadata::Error::NoJson)?; + Ok((cargo_metadata::MetadataCommand::parse(stdout)?, None)) + })() + .with_context(|| format!("Failed to run `{:?}`", command.cargo_command())); + progress("cargo metadata: finished".to_owned()); + res + } +} diff --git a/src/tools/rust-analyzer/crates/project-model/src/env.rs b/src/tools/rust-analyzer/crates/project-model/src/env.rs index 9e0415c3b39..d281492fc98 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/env.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/env.rs @@ -1,10 +1,9 @@ //! Cargo-like environment variables injection. use base_db::Env; -use paths::{Utf8Path, Utf8PathBuf}; -use rustc_hash::FxHashMap; +use paths::Utf8Path; use toolchain::Tool; -use crate::{ManifestPath, PackageData, Sysroot, TargetKind, utf8_stdout}; +use crate::{ManifestPath, PackageData, TargetKind, cargo_config_file::CargoConfigFile}; /// Recreates the compile-time environment variables that Cargo sets. /// @@ -61,104 +60,68 @@ pub(crate) fn inject_rustc_tool_env(env: &mut Env, cargo_name: &str, kind: Targe env.set("CARGO_CRATE_NAME", cargo_name.replace('-', "_")); } -pub(crate) fn cargo_config_env( - manifest: &ManifestPath, - extra_env: &FxHashMap<String, Option<String>>, - sysroot: &Sysroot, -) -> Env { - let mut cargo_config = sysroot.tool(Tool::Cargo, manifest.parent(), extra_env); - cargo_config - .args(["-Z", "unstable-options", "config", "get", "env"]) - .env("RUSTC_BOOTSTRAP", "1"); - if manifest.is_rust_manifest() { - cargo_config.arg("-Zscript"); - } - // if successful we receive `env.key.value = "value" per entry - tracing::debug!("Discovering cargo config env by {:?}", cargo_config); - utf8_stdout(&mut cargo_config) - .map(|stdout| parse_output_cargo_config_env(manifest, &stdout)) - .inspect(|env| { - tracing::debug!("Discovered cargo config env: {:?}", env); - }) - .inspect_err(|err| { - tracing::debug!("Failed to discover cargo config env: {:?}", err); - }) - .unwrap_or_default() -} - -fn parse_output_cargo_config_env(manifest: &ManifestPath, stdout: &str) -> Env { +pub(crate) fn cargo_config_env(manifest: &ManifestPath, config: &Option<CargoConfigFile>) -> Env { let mut env = Env::default(); - let mut relatives = vec![]; - for (key, val) in - stdout.lines().filter_map(|l| l.strip_prefix("env.")).filter_map(|l| l.split_once(" = ")) - { - let val = val.trim_matches('"').to_owned(); - if let Some((key, modifier)) = key.split_once('.') { - match modifier { - "relative" => relatives.push((key, val)), - "value" => _ = env.insert(key, val), - _ => { - tracing::warn!( - "Unknown modifier in cargo config env: {}, expected `relative` or `value`", - modifier - ); - continue; - } - } - } else { - env.insert(key, val); - } - } + let Some(serde_json::Value::Object(env_json)) = config.as_ref().and_then(|c| c.get("env")) + else { + return env; + }; + // FIXME: The base here should be the parent of the `.cargo/config` file, not the manifest. // But cargo does not provide this information. let base = <_ as AsRef<Utf8Path>>::as_ref(manifest.parent()); - for (key, relative) in relatives { - if relative != "true" { + + for (key, entry) in env_json { + let serde_json::Value::Object(entry) = entry else { continue; - } - if let Some(suffix) = env.get(key) { - env.insert(key, base.join(suffix).to_string()); - } - } - env -} + }; + let Some(value) = entry.get("value").and_then(|v| v.as_str()) else { + continue; + }; -pub(crate) fn cargo_config_build_target_dir( - manifest: &ManifestPath, - extra_env: &FxHashMap<String, Option<String>>, - sysroot: &Sysroot, -) -> Option<Utf8PathBuf> { - let mut cargo_config = sysroot.tool(Tool::Cargo, manifest.parent(), extra_env); - cargo_config - .args(["-Z", "unstable-options", "config", "get", "build.target-dir"]) - .env("RUSTC_BOOTSTRAP", "1"); - if manifest.is_rust_manifest() { - cargo_config.arg("-Zscript"); + let value = if entry + .get("relative") + .and_then(|v| v.as_bool()) + .is_some_and(std::convert::identity) + { + base.join(value).to_string() + } else { + value.to_owned() + }; + env.insert(key, value); } - utf8_stdout(&mut cargo_config) - .map(|stdout| { - Utf8Path::new(stdout.trim_start_matches("build.target-dir = ").trim_matches('"')) - .to_owned() - }) - .ok() + + env } #[test] fn parse_output_cargo_config_env_works() { - let stdout = r#" -env.CARGO_WORKSPACE_DIR.relative = true -env.CARGO_WORKSPACE_DIR.value = "" -env.RELATIVE.relative = true -env.RELATIVE.value = "../relative" -env.INVALID.relative = invalidbool -env.INVALID.value = "../relative" -env.TEST.value = "test" -"# - .trim(); + let raw = r#" +{ + "env": { + "CARGO_WORKSPACE_DIR": { + "relative": true, + "value": "" + }, + "INVALID": { + "relative": "invalidbool", + "value": "../relative" + }, + "RELATIVE": { + "relative": true, + "value": "../relative" + }, + "TEST": { + "value": "test" + } + } +} +"#; + let config: CargoConfigFile = serde_json::from_str(raw).unwrap(); let cwd = paths::Utf8PathBuf::try_from(std::env::current_dir().unwrap()).unwrap(); let manifest = paths::AbsPathBuf::assert(cwd.join("Cargo.toml")); let manifest = ManifestPath::try_from(manifest).unwrap(); - let env = parse_output_cargo_config_env(&manifest, stdout); + let env = cargo_config_env(&manifest, &Some(config)); assert_eq!(env.get("CARGO_WORKSPACE_DIR").as_deref(), Some(cwd.join("").as_str())); assert_eq!(env.get("RELATIVE").as_deref(), Some(cwd.join("../relative").as_str())); assert_eq!(env.get("INVALID").as_deref(), Some("../relative")); diff --git a/src/tools/rust-analyzer/crates/project-model/src/lib.rs b/src/tools/rust-analyzer/crates/project-model/src/lib.rs index 436af64cf13..3bf3d06e6b1 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/lib.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/lib.rs @@ -24,7 +24,7 @@ pub mod toolchain_info { use std::path::Path; - use crate::{ManifestPath, Sysroot}; + use crate::{ManifestPath, Sysroot, cargo_config_file::CargoConfigFile}; #[derive(Copy, Clone)] pub enum QueryConfig<'a> { @@ -32,11 +32,12 @@ pub mod toolchain_info { Rustc(&'a Sysroot, &'a Path), /// Attempt to use cargo to query the desired information, honoring cargo configurations. /// If this fails, falls back to invoking `rustc` directly. - Cargo(&'a Sysroot, &'a ManifestPath), + Cargo(&'a Sysroot, &'a ManifestPath, &'a Option<CargoConfigFile>), } } mod build_dependencies; +mod cargo_config_file; mod cargo_workspace; mod env; mod manifest_path; diff --git a/src/tools/rust-analyzer/crates/project-model/src/sysroot.rs b/src/tools/rust-analyzer/crates/project-model/src/sysroot.rs index 9f19260d309..9781c46737d 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/sysroot.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/sysroot.rs @@ -9,14 +9,15 @@ use std::{env, fs, ops::Not, path::Path, process::Command}; use anyhow::{Result, format_err}; use itertools::Itertools; -use paths::{AbsPath, AbsPathBuf, Utf8PathBuf}; +use paths::{AbsPath, AbsPathBuf, Utf8Path, Utf8PathBuf}; use rustc_hash::FxHashMap; use stdx::format_to; use toolchain::{Tool, probe_for_binary}; use crate::{ CargoWorkspace, ManifestPath, ProjectJson, RustSourceWorkspaceConfig, - cargo_workspace::CargoMetadataConfig, utf8_stdout, + cargo_workspace::{CargoMetadataConfig, FetchMetadata}, + utf8_stdout, }; #[derive(Debug, Clone, PartialEq, Eq)] @@ -211,6 +212,7 @@ impl Sysroot { sysroot_source_config: &RustSourceWorkspaceConfig, no_deps: bool, current_dir: &AbsPath, + target_dir: &Utf8Path, progress: &dyn Fn(String), ) -> Option<RustLibSrcWorkspace> { assert!(matches!(self.workspace, RustLibSrcWorkspace::Empty), "workspace already loaded"); @@ -224,6 +226,7 @@ impl Sysroot { match self.load_library_via_cargo( &library_manifest, current_dir, + target_dir, cargo_config, no_deps, progress, @@ -319,6 +322,7 @@ impl Sysroot { &self, library_manifest: &ManifestPath, current_dir: &AbsPath, + target_dir: &Utf8Path, cargo_config: &CargoMetadataConfig, no_deps: bool, progress: &dyn Fn(String), @@ -331,16 +335,11 @@ impl Sysroot { Some("nightly".to_owned()), ); - let (mut res, _) = CargoWorkspace::fetch_metadata( - library_manifest, - current_dir, - &cargo_config, - self, - no_deps, - // Make sure we never attempt to write to the sysroot - true, - progress, - )?; + // Make sure we never attempt to write to the sysroot + let locked = true; + let (mut res, _) = + FetchMetadata::new(library_manifest, current_dir, &cargo_config, self, no_deps) + .exec(target_dir, locked, progress)?; // Patch out `rustc-std-workspace-*` crates to point to the real crates. // This is done prior to `CrateGraph` construction to prevent de-duplication logic from failing. diff --git a/src/tools/rust-analyzer/crates/project-model/src/tests.rs b/src/tools/rust-analyzer/crates/project-model/src/tests.rs index f229e9a650d..ed72520f40d 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/tests.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/tests.rs @@ -239,8 +239,13 @@ fn smoke_test_real_sysroot_cargo() { ); let cwd = AbsPathBuf::assert_utf8(temp_dir().join("smoke_test_real_sysroot_cargo")); std::fs::create_dir_all(&cwd).unwrap(); - let loaded_sysroot = - sysroot.load_workspace(&RustSourceWorkspaceConfig::default_cargo(), false, &cwd, &|_| ()); + let loaded_sysroot = sysroot.load_workspace( + &RustSourceWorkspaceConfig::default_cargo(), + false, + &cwd, + &Utf8PathBuf::default(), + &|_| (), + ); if let Some(loaded_sysroot) = loaded_sysroot { sysroot.set_workspace(loaded_sysroot); } diff --git a/src/tools/rust-analyzer/crates/project-model/src/toolchain_info/rustc_cfg.rs b/src/tools/rust-analyzer/crates/project-model/src/toolchain_info/rustc_cfg.rs index a77f76797fc..6e06e88bf7a 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/toolchain_info/rustc_cfg.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/toolchain_info/rustc_cfg.rs @@ -63,7 +63,7 @@ fn rustc_print_cfg( ) -> anyhow::Result<String> { const RUSTC_ARGS: [&str; 2] = ["--print", "cfg"]; let (sysroot, current_dir) = match config { - QueryConfig::Cargo(sysroot, cargo_toml) => { + QueryConfig::Cargo(sysroot, cargo_toml, _) => { let mut cmd = sysroot.tool(Tool::Cargo, cargo_toml.parent(), extra_env); cmd.args(["rustc", "-Z", "unstable-options"]).args(RUSTC_ARGS); if let Some(target) = target { @@ -109,7 +109,7 @@ mod tests { let sysroot = Sysroot::empty(); let manifest_path = ManifestPath::try_from(AbsPathBuf::assert(Utf8PathBuf::from(manifest_path))).unwrap(); - let cfg = QueryConfig::Cargo(&sysroot, &manifest_path); + let cfg = QueryConfig::Cargo(&sysroot, &manifest_path, &None); assert_ne!(get(cfg, None, &FxHashMap::default()), vec![]); } diff --git a/src/tools/rust-analyzer/crates/project-model/src/toolchain_info/target_data_layout.rs b/src/tools/rust-analyzer/crates/project-model/src/toolchain_info/target_data_layout.rs index a4d0ec69537..a28f468e692 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/toolchain_info/target_data_layout.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/toolchain_info/target_data_layout.rs @@ -20,7 +20,7 @@ pub fn get( }) }; let (sysroot, current_dir) = match config { - QueryConfig::Cargo(sysroot, cargo_toml) => { + QueryConfig::Cargo(sysroot, cargo_toml, _) => { let mut cmd = sysroot.tool(Tool::Cargo, cargo_toml.parent(), extra_env); cmd.env("RUSTC_BOOTSTRAP", "1"); cmd.args(["rustc", "-Z", "unstable-options"]).args(RUSTC_ARGS).args([ @@ -66,7 +66,7 @@ mod tests { let sysroot = Sysroot::empty(); let manifest_path = ManifestPath::try_from(AbsPathBuf::assert(Utf8PathBuf::from(manifest_path))).unwrap(); - let cfg = QueryConfig::Cargo(&sysroot, &manifest_path); + let cfg = QueryConfig::Cargo(&sysroot, &manifest_path, &None); assert!(get(cfg, None, &FxHashMap::default()).is_ok()); } diff --git a/src/tools/rust-analyzer/crates/project-model/src/toolchain_info/target_tuple.rs b/src/tools/rust-analyzer/crates/project-model/src/toolchain_info/target_tuple.rs index f6ab8532197..9f12ededb61 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/toolchain_info/target_tuple.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/toolchain_info/target_tuple.rs @@ -5,7 +5,9 @@ use anyhow::Context; use rustc_hash::FxHashMap; use toolchain::Tool; -use crate::{ManifestPath, Sysroot, toolchain_info::QueryConfig, utf8_stdout}; +use crate::{ + Sysroot, cargo_config_file::CargoConfigFile, toolchain_info::QueryConfig, utf8_stdout, +}; /// For cargo, runs `cargo -Zunstable-options config get build.target` to get the configured project target(s). /// For rustc, runs `rustc --print -vV` to get the host target. @@ -20,8 +22,8 @@ pub fn get( } let (sysroot, current_dir) = match config { - QueryConfig::Cargo(sysroot, cargo_toml) => { - match cargo_config_build_target(cargo_toml, extra_env, sysroot) { + QueryConfig::Cargo(sysroot, cargo_toml, config_file) => { + match config_file.as_ref().and_then(cargo_config_build_target) { Some(it) => return Ok(it), None => (sysroot, cargo_toml.parent().as_ref()), } @@ -50,30 +52,30 @@ fn rustc_discover_host_tuple( } } -fn cargo_config_build_target( - cargo_toml: &ManifestPath, - extra_env: &FxHashMap<String, Option<String>>, - sysroot: &Sysroot, -) -> Option<Vec<String>> { - let mut cmd = sysroot.tool(Tool::Cargo, cargo_toml.parent(), extra_env); - cmd.current_dir(cargo_toml.parent()).env("RUSTC_BOOTSTRAP", "1"); - cmd.args(["-Z", "unstable-options", "config", "get", "build.target"]); - // if successful we receive `build.target = "target-tuple"` - // or `build.target = ["<target 1>", ..]` - // this might be `error: config value `build.target` is not set` in which case we - // don't wanna log the error - utf8_stdout(&mut cmd).and_then(parse_output_cargo_config_build_target).ok() +fn cargo_config_build_target(config: &CargoConfigFile) -> Option<Vec<String>> { + match parse_json_cargo_config_build_target(config) { + Ok(v) => v, + Err(e) => { + tracing::debug!("Failed to discover cargo config build target {e:?}"); + None + } + } } // Parses `"build.target = [target-tuple, target-tuple, ...]"` or `"build.target = "target-tuple"` -fn parse_output_cargo_config_build_target(stdout: String) -> anyhow::Result<Vec<String>> { - let trimmed = stdout.trim_start_matches("build.target = ").trim_matches('"'); - - if !trimmed.starts_with('[') { - return Ok([trimmed.to_owned()].to_vec()); +fn parse_json_cargo_config_build_target( + config: &CargoConfigFile, +) -> anyhow::Result<Option<Vec<String>>> { + let target = config.get("build").and_then(|v| v.as_object()).and_then(|m| m.get("target")); + match target { + Some(serde_json::Value::String(s)) => Ok(Some(vec![s.to_owned()])), + Some(v) => serde_json::from_value(v.clone()) + .map(Option::Some) + .context("Failed to parse `build.target` as an array of target"), + // t`error: config value `build.target` is not set`, in which case we + // don't wanna log the error + None => Ok(None), } - - serde_json::from_str(trimmed).context("Failed to parse `build.target` as an array of target") } #[cfg(test)] @@ -90,7 +92,7 @@ mod tests { let sysroot = Sysroot::empty(); let manifest_path = ManifestPath::try_from(AbsPathBuf::assert(Utf8PathBuf::from(manifest_path))).unwrap(); - let cfg = QueryConfig::Cargo(&sysroot, &manifest_path); + let cfg = QueryConfig::Cargo(&sysroot, &manifest_path, &None); assert!(get(cfg, None, &FxHashMap::default()).is_ok()); } diff --git a/src/tools/rust-analyzer/crates/project-model/src/toolchain_info/version.rs b/src/tools/rust-analyzer/crates/project-model/src/toolchain_info/version.rs index 91ba8598591..357053d8e82 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/toolchain_info/version.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/toolchain_info/version.rs @@ -12,7 +12,7 @@ pub(crate) fn get( extra_env: &FxHashMap<String, Option<String>>, ) -> Result<Option<Version>, anyhow::Error> { let (mut cmd, prefix) = match config { - QueryConfig::Cargo(sysroot, cargo_toml) => { + QueryConfig::Cargo(sysroot, cargo_toml, _) => { (sysroot.tool(Tool::Cargo, cargo_toml.parent(), extra_env), "cargo ") } QueryConfig::Rustc(sysroot, current_dir) => { @@ -44,7 +44,7 @@ mod tests { let sysroot = Sysroot::empty(); let manifest_path = ManifestPath::try_from(AbsPathBuf::assert(Utf8PathBuf::from(manifest_path))).unwrap(); - let cfg = QueryConfig::Cargo(&sysroot, &manifest_path); + let cfg = QueryConfig::Cargo(&sysroot, &manifest_path, &None); assert!(get(cfg, &FxHashMap::default()).is_ok()); } diff --git a/src/tools/rust-analyzer/crates/project-model/src/workspace.rs b/src/tools/rust-analyzer/crates/project-model/src/workspace.rs index 43db84b4fa3..677f29e3c60 100644 --- a/src/tools/rust-analyzer/crates/project-model/src/workspace.rs +++ b/src/tools/rust-analyzer/crates/project-model/src/workspace.rs @@ -25,11 +25,9 @@ use crate::{ ProjectJson, ProjectManifest, RustSourceWorkspaceConfig, Sysroot, TargetData, TargetKind, WorkspaceBuildScripts, build_dependencies::BuildScriptOutput, - cargo_workspace::{CargoMetadataConfig, DepKind, PackageData, RustLibSource}, - env::{ - cargo_config_build_target_dir, cargo_config_env, inject_cargo_env, - inject_cargo_package_env, inject_rustc_tool_env, - }, + cargo_config_file, + cargo_workspace::{CargoMetadataConfig, DepKind, FetchMetadata, PackageData, RustLibSource}, + env::{cargo_config_env, inject_cargo_env, inject_cargo_package_env, inject_rustc_tool_env}, project_json::{Crate, CrateArrayIdx}, sysroot::RustLibSrcWorkspace, toolchain_info::{QueryConfig, rustc_cfg, target_data_layout, target_tuple, version}, @@ -270,7 +268,9 @@ impl ProjectWorkspace { tracing::info!(workspace = %cargo_toml, src_root = ?sysroot.rust_lib_src_root(), root = ?sysroot.root(), "Using sysroot"); progress("querying project metadata".to_owned()); - let toolchain_config = QueryConfig::Cargo(&sysroot, cargo_toml); + let config_file = cargo_config_file::read(cargo_toml, extra_env, &sysroot); + let config_file_ = config_file.clone(); + let toolchain_config = QueryConfig::Cargo(&sysroot, cargo_toml, &config_file_); let targets = target_tuple::get(toolchain_config, target.as_deref(), extra_env).unwrap_or_default(); let toolchain = version::get(toolchain_config, extra_env) @@ -282,10 +282,24 @@ impl ProjectWorkspace { .ok() .flatten(); + let fetch_metadata = FetchMetadata::new( + cargo_toml, + workspace_dir, + &CargoMetadataConfig { + features: features.clone(), + targets: targets.clone(), + extra_args: extra_args.clone(), + extra_env: extra_env.clone(), + toolchain_version: toolchain.clone(), + kind: "workspace", + }, + &sysroot, + *no_deps, + ); let target_dir = config .target_dir .clone() - .or_else(|| cargo_config_build_target_dir(cargo_toml, extra_env, &sysroot)) + .or_else(|| fetch_metadata.no_deps_metadata().map(|m| m.target_directory.clone())) .unwrap_or_else(|| workspace_dir.join("target").into()); // We spawn a bunch of processes to query various information about the workspace's @@ -319,7 +333,7 @@ impl ProjectWorkspace { }; rustc_dir.and_then(|rustc_dir| { info!(workspace = %cargo_toml, rustc_dir = %rustc_dir, "Using rustc source"); - match CargoWorkspace::fetch_metadata( + match FetchMetadata::new( &rustc_dir, workspace_dir, &CargoMetadataConfig { @@ -327,15 +341,12 @@ impl ProjectWorkspace { targets: targets.clone(), extra_args: extra_args.clone(), extra_env: extra_env.clone(), - target_dir: target_dir.clone(), toolchain_version: toolchain.clone(), kind: "rustc-dev" }, &sysroot, *no_deps, - true, - progress, - ) { + ).exec(&target_dir, true, progress) { Ok((meta, _error)) => { let workspace = CargoWorkspace::new( meta, @@ -364,40 +375,22 @@ impl ProjectWorkspace { }) }); - let cargo_metadata = s.spawn(|| { - CargoWorkspace::fetch_metadata( - cargo_toml, - workspace_dir, - &CargoMetadataConfig { - features: features.clone(), - targets: targets.clone(), - extra_args: extra_args.clone(), - extra_env: extra_env.clone(), - target_dir: target_dir.clone(), - toolchain_version: toolchain.clone(), - kind: "workspace", - }, - &sysroot, - *no_deps, - false, - progress, - ) - }); + let cargo_metadata = s.spawn(|| fetch_metadata.exec(&target_dir, false, progress)); let loaded_sysroot = s.spawn(|| { sysroot.load_workspace( &RustSourceWorkspaceConfig::CargoMetadata(sysroot_metadata_config( config, &targets, toolchain.clone(), - target_dir.clone(), )), config.no_deps, workspace_dir, + &target_dir, progress, ) }); let cargo_config_extra_env = - s.spawn(|| cargo_config_env(cargo_toml, extra_env, &sysroot)); + s.spawn(move || cargo_config_env(cargo_toml, &config_file)); thread::Result::Ok(( rustc_cfg.join()?, data_layout.join()?, @@ -476,9 +469,7 @@ impl ProjectWorkspace { let target_dir = config .target_dir .clone() - .or_else(|| { - cargo_config_build_target_dir(project_json.manifest()?, &config.extra_env, &sysroot) - }) + .or_else(|| cargo_target_dir(project_json.manifest()?, &config.extra_env, &sysroot)) .unwrap_or_else(|| project_root.join("target").into()); // We spawn a bunch of processes to query various information about the workspace's @@ -502,6 +493,7 @@ impl ProjectWorkspace { &RustSourceWorkspaceConfig::Json(*sysroot_project), config.no_deps, project_root, + &target_dir, progress, ) } else { @@ -510,10 +502,10 @@ impl ProjectWorkspace { config, &targets, toolchain.clone(), - target_dir, )), config.no_deps, project_root, + &target_dir, progress, ) } @@ -554,7 +546,8 @@ impl ProjectWorkspace { None => Sysroot::empty(), }; - let query_config = QueryConfig::Cargo(&sysroot, detached_file); + let config_file = cargo_config_file::read(detached_file, &config.extra_env, &sysroot); + let query_config = QueryConfig::Cargo(&sysroot, detached_file, &config_file); let toolchain = version::get(query_config, &config.extra_env).ok().flatten(); let targets = target_tuple::get(query_config, config.target.as_deref(), &config.extra_env) .unwrap_or_default(); @@ -563,7 +556,7 @@ impl ProjectWorkspace { let target_dir = config .target_dir .clone() - .or_else(|| cargo_config_build_target_dir(detached_file, &config.extra_env, &sysroot)) + .or_else(|| cargo_target_dir(detached_file, &config.extra_env, &sysroot)) .unwrap_or_else(|| dir.join("target").into()); let loaded_sysroot = sysroot.load_workspace( @@ -571,17 +564,17 @@ impl ProjectWorkspace { config, &targets, toolchain.clone(), - target_dir.clone(), )), config.no_deps, dir, + &target_dir, &|_| (), ); if let Some(loaded_sysroot) = loaded_sysroot { sysroot.set_workspace(loaded_sysroot); } - let cargo_script = CargoWorkspace::fetch_metadata( + let fetch_metadata = FetchMetadata::new( detached_file, dir, &CargoMetadataConfig { @@ -589,25 +582,26 @@ impl ProjectWorkspace { targets, extra_args: config.extra_args.clone(), extra_env: config.extra_env.clone(), - target_dir, toolchain_version: toolchain.clone(), kind: "detached-file", }, &sysroot, config.no_deps, - false, - &|_| (), - ) - .ok() - .map(|(ws, error)| { - let cargo_config_extra_env = - cargo_config_env(detached_file, &config.extra_env, &sysroot); - ( - CargoWorkspace::new(ws, detached_file.clone(), cargo_config_extra_env, false), - WorkspaceBuildScripts::default(), - error.map(Arc::new), - ) - }); + ); + let target_dir = config + .target_dir + .clone() + .or_else(|| fetch_metadata.no_deps_metadata().map(|m| m.target_directory.clone())) + .unwrap_or_else(|| dir.join("target").into()); + let cargo_script = + fetch_metadata.exec(&target_dir, false, &|_| ()).ok().map(|(ws, error)| { + let cargo_config_extra_env = cargo_config_env(detached_file, &config_file); + ( + CargoWorkspace::new(ws, detached_file.clone(), cargo_config_extra_env, false), + WorkspaceBuildScripts::default(), + error.map(Arc::new), + ) + }); Ok(ProjectWorkspace { kind: ProjectWorkspaceKind::DetachedFile { @@ -1889,15 +1883,33 @@ fn sysroot_metadata_config( config: &CargoConfig, targets: &[String], toolchain_version: Option<Version>, - target_dir: Utf8PathBuf, ) -> CargoMetadataConfig { CargoMetadataConfig { features: Default::default(), targets: targets.to_vec(), extra_args: Default::default(), extra_env: config.extra_env.clone(), - target_dir, toolchain_version, kind: "sysroot", } } + +fn cargo_target_dir( + manifest: &ManifestPath, + extra_env: &FxHashMap<String, Option<String>>, + sysroot: &Sysroot, +) -> Option<Utf8PathBuf> { + let cargo = sysroot.tool(Tool::Cargo, manifest.parent(), extra_env); + let mut meta = cargo_metadata::MetadataCommand::new(); + meta.cargo_path(cargo.get_program()); + meta.manifest_path(manifest); + // `--no-deps` doesn't (over)write lockfiles as it doesn't do any package resolve. + // So we can use it to get `target_directory` before copying lockfiles + let mut other_options = vec!["--no-deps".to_owned()]; + if manifest.is_rust_manifest() { + meta.env("RUSTC_BOOTSTRAP", "1"); + other_options.push("-Zscript".to_owned()); + } + meta.other_options(other_options); + meta.exec().map(|m| m.target_directory).ok() +} 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 0ee01982fea..fc89f486f84 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 @@ -796,7 +796,7 @@ impl flags::AnalysisStats { // region:expressions let (previous_exprs, previous_unknown, previous_partially_unknown) = (num_exprs, num_exprs_unknown, num_exprs_partially_unknown); - for (expr_id, _) in body.exprs.iter() { + for (expr_id, _) in body.exprs() { let ty = &inference_result[expr_id]; num_exprs += 1; let unknown_or_partial = if ty.is_unknown() { @@ -901,7 +901,7 @@ impl flags::AnalysisStats { // region:patterns let (previous_pats, previous_unknown, previous_partially_unknown) = (num_pats, num_pats_unknown, num_pats_partially_unknown); - for (pat_id, _) in body.pats.iter() { + for (pat_id, _) in body.pats() { let ty = &inference_result[pat_id]; num_pats += 1; let unknown_or_partial = if ty.is_unknown() { diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs index f97bf832442..30ac93fb6f8 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/src/cli/rustc_tests.rs @@ -9,6 +9,7 @@ use hir::{ChangeWithProcMacros, Crate}; use ide::{AnalysisHost, DiagnosticCode, DiagnosticsConfig}; use ide_db::base_db; use itertools::Either; +use paths::Utf8PathBuf; use profile::StopWatch; use project_model::toolchain_info::{QueryConfig, target_data_layout}; use project_model::{ @@ -79,6 +80,7 @@ impl Tester { &RustSourceWorkspaceConfig::default_cargo(), false, &path, + &Utf8PathBuf::default(), &|_| (), ); if let Some(loaded_sysroot) = loaded_sysroot { 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 8a848fb848c..292be1d5315 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 @@ -911,7 +911,8 @@ pub(crate) fn folding_range( | FoldKind::Array | FoldKind::TraitAliases | FoldKind::ExternCrates - | FoldKind::MatchArm => None, + | FoldKind::MatchArm + | FoldKind::Function => None, }; let range = range(line_index, fold.range); diff --git a/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs b/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs index 59073af983b..1b940c70da6 100644 --- a/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs +++ b/src/tools/rust-analyzer/crates/rust-analyzer/tests/slow-tests/main.rs @@ -880,7 +880,8 @@ fn main() {{}} #[test] fn diagnostics_dont_block_typing() { - if skip_slow_tests() { + if skip_slow_tests() || std::env::var("CI").is_ok() { + // FIXME: This test is failing too frequently (therefore we disable it on CI). return; } diff --git a/src/tools/rust-analyzer/crates/span/src/ast_id.rs b/src/tools/rust-analyzer/crates/span/src/ast_id.rs index 121d2e33243..a9288ecd6fa 100644 --- a/src/tools/rust-analyzer/crates/span/src/ast_id.rs +++ b/src/tools/rust-analyzer/crates/span/src/ast_id.rs @@ -92,6 +92,7 @@ impl fmt::Debug for ErasedFileAstId { Use, Impl, BlockExpr, + AsmExpr, Fixup, ); if f.alternate() { @@ -144,6 +145,10 @@ enum ErasedFileAstIdKind { Impl, /// Associated with [`BlockExprFileAstId`]. BlockExpr, + // `global_asm!()` is an item, so we need to give it an `AstId`. So we give to all inline asm + // because incrementality is not a problem, they will always be the only item in the macro file, + // and memory usage also not because they're rare. + AsmExpr, /// Keep this last. Root, } @@ -204,14 +209,17 @@ impl ErasedFileAstId { .or_else(|| extern_block_ast_id(node, index_map)) .or_else(|| use_ast_id(node, index_map)) .or_else(|| impl_ast_id(node, index_map)) + .or_else(|| asm_expr_ast_id(node, index_map)) } fn should_alloc(node: &SyntaxNode) -> bool { - should_alloc_has_name(node) - || should_alloc_assoc_item(node) - || ast::ExternBlock::can_cast(node.kind()) - || ast::Use::can_cast(node.kind()) - || ast::Impl::can_cast(node.kind()) + let kind = node.kind(); + should_alloc_has_name(kind) + || should_alloc_assoc_item(kind) + || ast::ExternBlock::can_cast(kind) + || ast::Use::can_cast(kind) + || ast::Impl::can_cast(kind) + || ast::AsmExpr::can_cast(kind) } #[inline] @@ -278,7 +286,6 @@ impl<N> FileAstId<N> { #[derive(Hash)] struct ErasedHasNameFileAstId<'a> { - kind: SyntaxKind, name: &'a str, } @@ -332,6 +339,19 @@ fn use_ast_id( } } +impl AstIdNode for ast::AsmExpr {} + +fn asm_expr_ast_id( + node: &SyntaxNode, + index_map: &mut ErasedAstIdNextIndexMap, +) -> Option<ErasedFileAstId> { + if ast::AsmExpr::can_cast(node.kind()) { + Some(index_map.new_id(ErasedFileAstIdKind::AsmExpr, ())) + } else { + None + } +} + impl AstIdNode for ast::Impl {} fn impl_ast_id( @@ -433,7 +453,6 @@ macro_rules! register_has_name_ast_id { )+ fn has_name_ast_id(node: &SyntaxNode, index_map: &mut ErasedAstIdNextIndexMap) -> Option<ErasedFileAstId> { - let kind = node.kind(); match_ast! { match node { $( @@ -441,7 +460,6 @@ macro_rules! register_has_name_ast_id { let name = node.$name_method(); let name = name.as_ref().map_or("", |it| it.text_non_mutable()); let result = ErasedHasNameFileAstId { - kind, name, }; Some(index_map.new_id(ErasedFileAstIdKind::$ident, result)) @@ -452,8 +470,7 @@ macro_rules! register_has_name_ast_id { } } - fn should_alloc_has_name(node: &SyntaxNode) -> bool { - let kind = node.kind(); + fn should_alloc_has_name(kind: SyntaxKind) -> bool { false $( || ast::$ident::can_cast(kind) )* } }; @@ -483,7 +500,6 @@ macro_rules! register_assoc_item_ast_id { index_map: &mut ErasedAstIdNextIndexMap, parent: Option<&ErasedFileAstId>, ) -> Option<ErasedFileAstId> { - let kind = node.kind(); match_ast! { match node { $( @@ -491,7 +507,6 @@ macro_rules! register_assoc_item_ast_id { let name = $name_callback(node); let name = name.as_ref().map_or("", |it| it.text_non_mutable()); let properties = ErasedHasNameFileAstId { - kind, name, }; let result = ErasedAssocItemFileAstId { @@ -506,8 +521,7 @@ macro_rules! register_assoc_item_ast_id { } } - fn should_alloc_assoc_item(node: &SyntaxNode) -> bool { - let kind = node.kind(); + fn should_alloc_assoc_item(kind: SyntaxKind) -> bool { false $( || ast::$ident::can_cast(kind) )* } }; diff --git a/src/tools/rust-analyzer/crates/syntax/rust.ungram b/src/tools/rust-analyzer/crates/syntax/rust.ungram index 3f439472337..4cbc88cfb5e 100644 --- a/src/tools/rust-analyzer/crates/syntax/rust.ungram +++ b/src/tools/rust-analyzer/crates/syntax/rust.ungram @@ -158,6 +158,7 @@ Item = | TypeAlias | Union | Use +| AsmExpr MacroRules = Attr* Visibility? @@ -409,7 +410,8 @@ OffsetOfExpr = // global_asm := "global_asm!(" format_string *("," format_string) *("," operand) [","] ")" // format_string := STRING_LITERAL / RAW_STRING_LITERAL AsmExpr = - Attr* 'builtin' '#' 'asm' '(' template:(Expr (',' Expr)*) (AsmPiece (',' AsmPiece)*)? ','? ')' + Attr* 'builtin' '#' ( 'asm' | 'global_asm' | 'naked_asm' ) + '(' template:(Expr (',' Expr)*) (AsmPiece (',' AsmPiece)*)? ','? ')' // operand_expr := expr / "_" / expr "=>" expr / expr "=>" "_" AsmOperandExpr = in_expr:Expr ('=>' out_expr:Expr)? 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 e60243f2c91..e902516471d 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 @@ -406,42 +406,6 @@ impl ast::WhereClause { } } -impl ast::TypeParam { - pub fn remove_default(&self) { - if let Some((eq, last)) = self - .syntax() - .children_with_tokens() - .find(|it| it.kind() == T![=]) - .zip(self.syntax().last_child_or_token()) - { - ted::remove_all(eq..=last); - - // remove any trailing ws - if let Some(last) = self.syntax().last_token().filter(|it| it.kind() == WHITESPACE) { - last.detach(); - } - } - } -} - -impl ast::ConstParam { - pub fn remove_default(&self) { - if let Some((eq, last)) = self - .syntax() - .children_with_tokens() - .find(|it| it.kind() == T![=]) - .zip(self.syntax().last_child_or_token()) - { - ted::remove_all(eq..=last); - - // remove any trailing ws - if let Some(last) = self.syntax().last_token().filter(|it| it.kind() == WHITESPACE) { - last.detach(); - } - } - } -} - pub trait Removable: AstNode { fn remove(&self); } diff --git a/src/tools/rust-analyzer/crates/syntax/src/ast/generated/nodes.rs b/src/tools/rust-analyzer/crates/syntax/src/ast/generated/nodes.rs index 79a9f4da338..2b862465420 100644 --- a/src/tools/rust-analyzer/crates/syntax/src/ast/generated/nodes.rs +++ b/src/tools/rust-analyzer/crates/syntax/src/ast/generated/nodes.rs @@ -118,6 +118,14 @@ impl AsmExpr { pub fn asm_token(&self) -> Option<SyntaxToken> { support::token(&self.syntax, T![asm]) } #[inline] pub fn builtin_token(&self) -> Option<SyntaxToken> { support::token(&self.syntax, T![builtin]) } + #[inline] + pub fn global_asm_token(&self) -> Option<SyntaxToken> { + support::token(&self.syntax, T![global_asm]) + } + #[inline] + pub fn naked_asm_token(&self) -> Option<SyntaxToken> { + support::token(&self.syntax, T![naked_asm]) + } } pub struct AsmLabel { pub(crate) syntax: SyntaxNode, @@ -2087,6 +2095,7 @@ impl ast::HasAttrs for GenericParam {} #[derive(Debug, Clone, PartialEq, Eq, Hash)] pub enum Item { + AsmExpr(AsmExpr), Const(Const), Enum(Enum), ExternBlock(ExternBlock), @@ -2106,7 +2115,6 @@ pub enum Item { Use(Use), } impl ast::HasAttrs for Item {} -impl ast::HasDocComments for Item {} #[derive(Debug, Clone, PartialEq, Eq, Hash)] pub enum Pat { @@ -8409,6 +8417,10 @@ impl AstNode for GenericParam { } } } +impl From<AsmExpr> for Item { + #[inline] + fn from(node: AsmExpr) -> Item { Item::AsmExpr(node) } +} impl From<Const> for Item { #[inline] fn from(node: Const) -> Item { Item::Const(node) } @@ -8482,7 +8494,8 @@ impl AstNode for Item { fn can_cast(kind: SyntaxKind) -> bool { matches!( kind, - CONST + ASM_EXPR + | CONST | ENUM | EXTERN_BLOCK | EXTERN_CRATE @@ -8504,6 +8517,7 @@ impl AstNode for Item { #[inline] fn cast(syntax: SyntaxNode) -> Option<Self> { let res = match syntax.kind() { + ASM_EXPR => Item::AsmExpr(AsmExpr { syntax }), CONST => Item::Const(Const { syntax }), ENUM => Item::Enum(Enum { syntax }), EXTERN_BLOCK => Item::ExternBlock(ExternBlock { syntax }), @@ -8528,6 +8542,7 @@ impl AstNode for Item { #[inline] fn syntax(&self) -> &SyntaxNode { match self { + Item::AsmExpr(it) => &it.syntax, Item::Const(it) => &it.syntax, Item::Enum(it) => &it.syntax, Item::ExternBlock(it) => &it.syntax, 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 309332873cb..d67f24fda96 100644 --- a/src/tools/rust-analyzer/crates/syntax/src/ast/make.rs +++ b/src/tools/rust-analyzer/crates/syntax/src/ast/make.rs @@ -680,7 +680,7 @@ pub fn expr_tuple(elements: impl IntoIterator<Item = ast::Expr>) -> ast::TupleEx let expr = elements.into_iter().format(", "); expr_from_text(&format!("({expr})")) } -pub fn expr_assignment(lhs: ast::Expr, rhs: ast::Expr) -> ast::Expr { +pub fn expr_assignment(lhs: ast::Expr, rhs: ast::Expr) -> ast::BinExpr { expr_from_text(&format!("{lhs} = {rhs}")) } fn expr_from_text<E: Into<ast::Expr> + AstNode>(text: &str) -> E { diff --git a/src/tools/rust-analyzer/crates/syntax/src/ast/syntax_factory/constructors.rs b/src/tools/rust-analyzer/crates/syntax/src/ast/syntax_factory/constructors.rs index 17cc5f9c057..1ba61073151 100644 --- a/src/tools/rust-analyzer/crates/syntax/src/ast/syntax_factory/constructors.rs +++ b/src/tools/rust-analyzer/crates/syntax/src/ast/syntax_factory/constructors.rs @@ -440,6 +440,19 @@ impl SyntaxFactory { ast } + pub fn expr_assignment(&self, lhs: ast::Expr, rhs: ast::Expr) -> ast::BinExpr { + let ast = make::expr_assignment(lhs.clone(), rhs.clone()).clone_for_update(); + + if let Some(mut mapping) = self.mappings() { + let mut builder = SyntaxMappingBuilder::new(ast.syntax().clone()); + builder.map_node(lhs.syntax().clone(), ast.lhs().unwrap().syntax().clone()); + builder.map_node(rhs.syntax().clone(), ast.rhs().unwrap().syntax().clone()); + builder.finish(&mut mapping); + } + + ast + } + pub fn expr_bin(&self, lhs: ast::Expr, op: ast::BinaryOp, rhs: ast::Expr) -> ast::BinExpr { let ast::Expr::BinExpr(ast) = make::expr_bin_op(lhs.clone(), op, rhs.clone()).clone_for_update() 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 dc1eba1a1ab..7b719b5dec7 100644 --- a/src/tools/rust-analyzer/crates/test-utils/src/minicore.rs +++ b/src/tools/rust-analyzer/crates/test-utils/src/minicore.rs @@ -1011,8 +1011,7 @@ pub mod ops { } #[lang = "add_assign"] - #[const_trait] - pub trait AddAssign<Rhs = Self> { + pub const trait AddAssign<Rhs = Self> { fn add_assign(&mut self, rhs: Rhs); } @@ -1941,6 +1940,7 @@ pub mod prelude { clone::Clone, // :clone cmp::{Eq, PartialEq}, // :eq cmp::{Ord, PartialOrd}, // :ord + convert::AsMut, // :as_mut convert::AsRef, // :as_ref convert::{From, Into, TryFrom, TryInto}, // :from default::Default, // :default diff --git a/src/tools/rust-analyzer/lib/lsp-server/Cargo.toml b/src/tools/rust-analyzer/lib/lsp-server/Cargo.toml index 35a5a4d82b2..1fc1da50a0a 100644 --- a/src/tools/rust-analyzer/lib/lsp-server/Cargo.toml +++ b/src/tools/rust-analyzer/lib/lsp-server/Cargo.toml @@ -16,6 +16,9 @@ crossbeam-channel.workspace = true [dev-dependencies] lsp-types = "=0.95" ctrlc = "3.4.7" +anyhow.workspace = true +rustc-hash.workspace = true +toolchain.workspace = true [lints] workspace = true diff --git a/src/tools/rust-analyzer/lib/lsp-server/examples/goto_def.rs b/src/tools/rust-analyzer/lib/lsp-server/examples/goto_def.rs deleted file mode 100644 index 6b3acda7bcd..00000000000 --- a/src/tools/rust-analyzer/lib/lsp-server/examples/goto_def.rs +++ /dev/null @@ -1,132 +0,0 @@ -//! A minimal example LSP server that can only respond to the `gotoDefinition` request. To use -//! this example, execute it and then send an `initialize` request. -//! -//! ```no_run -//! Content-Length: 85 -//! -//! {"jsonrpc": "2.0", "method": "initialize", "id": 1, "params": {"capabilities": {}}} -//! ``` -//! -//! This will respond with a server response. Then send it a `initialized` notification which will -//! have no response. -//! -//! ```no_run -//! Content-Length: 59 -//! -//! {"jsonrpc": "2.0", "method": "initialized", "params": {}} -//! ``` -//! -//! Once these two are sent, then we enter the main loop of the server. The only request this -//! example can handle is `gotoDefinition`: -//! -//! ```no_run -//! Content-Length: 159 -//! -//! {"jsonrpc": "2.0", "method": "textDocument/definition", "id": 2, "params": {"textDocument": {"uri": "file://temp"}, "position": {"line": 1, "character": 1}}} -//! ``` -//! -//! To finish up without errors, send a shutdown request: -//! -//! ```no_run -//! Content-Length: 67 -//! -//! {"jsonrpc": "2.0", "method": "shutdown", "id": 3, "params": null} -//! ``` -//! -//! The server will exit the main loop and finally we send a `shutdown` notification to stop -//! the server. -//! -//! ``` -//! Content-Length: 54 -//! -//! {"jsonrpc": "2.0", "method": "exit", "params": null} -//! ``` - -#![allow(clippy::print_stderr)] - -use std::error::Error; - -use lsp_types::OneOf; -use lsp_types::{ - GotoDefinitionResponse, InitializeParams, ServerCapabilities, request::GotoDefinition, -}; - -use lsp_server::{Connection, ExtractError, Message, Request, RequestId, Response}; - -fn main() -> Result<(), Box<dyn Error + Sync + Send>> { - // Note that we must have our logging only write out to stderr. - eprintln!("starting generic LSP server"); - - // Create the transport. Includes the stdio (stdin and stdout) versions but this could - // also be implemented to use sockets or HTTP. - let (connection, io_threads) = Connection::stdio(); - - // Run the server and wait for the two threads to end (typically by trigger LSP Exit event). - let server_capabilities = serde_json::to_value(&ServerCapabilities { - definition_provider: Some(OneOf::Left(true)), - ..Default::default() - }) - .unwrap(); - let initialization_params = match connection.initialize(server_capabilities) { - Ok(it) => it, - Err(e) => { - if e.channel_is_disconnected() { - io_threads.join()?; - } - return Err(e.into()); - } - }; - main_loop(connection, initialization_params)?; - io_threads.join()?; - - // Shut down gracefully. - eprintln!("shutting down server"); - Ok(()) -} - -fn main_loop( - connection: Connection, - params: serde_json::Value, -) -> Result<(), Box<dyn Error + Sync + Send>> { - let _params: InitializeParams = serde_json::from_value(params).unwrap(); - eprintln!("starting example main loop"); - for msg in &connection.receiver { - eprintln!("got msg: {msg:?}"); - match msg { - Message::Request(req) => { - if connection.handle_shutdown(&req)? { - return Ok(()); - } - eprintln!("got request: {req:?}"); - match cast::<GotoDefinition>(req) { - Ok((id, params)) => { - eprintln!("got gotoDefinition request #{id}: {params:?}"); - let result = Some(GotoDefinitionResponse::Array(Vec::new())); - let result = serde_json::to_value(&result).unwrap(); - let resp = Response { id, result: Some(result), error: None }; - connection.sender.send(Message::Response(resp))?; - continue; - } - Err(err @ ExtractError::JsonError { .. }) => panic!("{err:?}"), - Err(ExtractError::MethodMismatch(req)) => req, - }; - // ... - } - Message::Response(resp) => { - eprintln!("got response: {resp:?}"); - } - Message::Notification(not) => { - eprintln!("got notification: {not:?}"); - } - } - } - Ok(()) -} - -fn cast<R>(req: Request) -> Result<(RequestId, R::Params), ExtractError<Request>> -where - R: lsp_types::request::Request, - R::Params: serde::de::DeserializeOwned, -{ - req.extract(R::METHOD) -} diff --git a/src/tools/rust-analyzer/lib/lsp-server/examples/manual_test.sh b/src/tools/rust-analyzer/lib/lsp-server/examples/manual_test.sh new file mode 100755 index 00000000000..d028ac43301 --- /dev/null +++ b/src/tools/rust-analyzer/lib/lsp-server/examples/manual_test.sh @@ -0,0 +1,53 @@ +#!/usr/bin/env bash +# Simple nine-packet LSP test for examples/minimal_lsp.rs +# Usage (two tabs): +# +# mkfifo /tmp/lsp_pipe # one-time setup +# # tab 1 – run the server +# cat /tmp/lsp_pipe | cargo run --example minimal_lsp +# +# # tab 2 – fire the packets (this script) +# bash examples/manual_test.sh # blocks until server exits +# +# If you don’t use a second tab, run the script in the background: +# +# bash examples/manual_test.sh & # writer in background +# cat /tmp/lsp_pipe | cargo run --example minimal_lsp +# +# The script opens /tmp/lsp_pipe for writing (exec 3>) and sends each JSON +# packet with a correct Content-Length header. +# +# One-liner alternative (single terminal, no FIFO): +# +# cargo run --example minimal_lsp <<'EOF' +# … nine packets … +# EOF +# +# Both approaches feed identical bytes to minimal_lsp via stdin. + +set -eu +PIPE=${1:-/tmp/lsp_pipe} + +mkfifo -m 600 "$PIPE" 2>/dev/null || true # create once, ignore if exists + +# open write end so the fifo stays open +exec 3> "$PIPE" + +send() { + local body=$1 + local len=$(printf '%s' "$body" | wc -c) + printf 'Content-Length: %d\r\n\r\n%s' "$len" "$body" >&3 +} + +send '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"capabilities":{}}}' +send '{"jsonrpc":"2.0","method":"initialized","params":{}}' +send '{"jsonrpc":"2.0","method":"textDocument/didOpen","params":{"textDocument":{"uri":"file:///tmp/foo.rs","languageId":"rust","version":1,"text":"fn main( ){println!(\"hi\") }"}}}' +send '{"jsonrpc":"2.0","id":2,"method":"textDocument/completion","params":{"textDocument":{"uri":"file:///tmp/foo.rs"},"position":{"line":0,"character":0}}}' +send '{"jsonrpc":"2.0","id":3,"method":"textDocument/hover","params":{"textDocument":{"uri":"file:///tmp/foo.rs"},"position":{"line":0,"character":0}}}' +send '{"jsonrpc":"2.0","id":4,"method":"textDocument/definition","params":{"textDocument":{"uri":"file:///tmp/foo.rs"},"position":{"line":0,"character":0}}}' +send '{"jsonrpc":"2.0","id":5,"method":"textDocument/formatting","params":{"textDocument":{"uri":"file:///tmp/foo.rs"},"options":{"tabSize":4,"insertSpaces":true}}}' +send '{"jsonrpc":"2.0","id":6,"method":"shutdown","params":null}' +send '{"jsonrpc":"2.0","method":"exit","params":null}' + +exec 3>&- +echo "Packets sent – watch the other terminal for responses." diff --git a/src/tools/rust-analyzer/lib/lsp-server/examples/minimal_lsp.rs b/src/tools/rust-analyzer/lib/lsp-server/examples/minimal_lsp.rs new file mode 100644 index 00000000000..5eef999e062 --- /dev/null +++ b/src/tools/rust-analyzer/lib/lsp-server/examples/minimal_lsp.rs @@ -0,0 +1,335 @@ +//! Minimal Language‑Server‑Protocol example: **`minimal_lsp.rs`** +//! ============================================================= +//! +//! | ↔ / ← | LSP method | What the implementation does | +//! |-------|------------|------------------------------| +//! | ↔ | `initialize` / `initialized` | capability handshake | +//! | ← | `textDocument/publishDiagnostics` | pushes a dummy info diagnostic whenever the buffer changes | +//! | ← | `textDocument/definition` | echoes an empty location array so the jump works | +//! | ← | `textDocument/completion` | offers one hard‑coded item `HelloFromLSP` | +//! | ← | `textDocument/hover` | shows *Hello from minimal_lsp* markdown | +//! | ← | `textDocument/formatting` | pipes the doc through **rustfmt** and returns a full‑file edit | +//! +//! ### Quick start +//! ```bash +//! cd rust-analyzer/lib/lsp-server +//! cargo run --example minimal_lsp +//! ``` +//! +//! ### Minimal manual session (all nine packets) +//! ```no_run +//! # 1. initialize - server replies with capabilities +//! Content-Length: 85 + +//! {"jsonrpc":"2.0","id":1,"method":"initialize","params":{"capabilities":{}}} +//! +//! # 2. initialized - no response expected +//! Content-Length: 59 + +//! {"jsonrpc":"2.0","method":"initialized","params":{}} +//! +//! # 3. didOpen - provide initial buffer text +//! Content-Length: 173 + +//! {"jsonrpc":"2.0","method":"textDocument/didOpen","params":{"textDocument":{"uri":"file:///tmp/foo.rs","languageId":"rust","version":1,"text":"fn main( ){println!(\"hi\") }"}}} +//! +//! # 4. completion - expect HelloFromLSP +//! Content-Length: 139 + +//! {"jsonrpc":"2.0","id":2,"method":"textDocument/completion","params":{"textDocument":{"uri":"file:///tmp/foo.rs"},"position":{"line":0,"character":0}}} +//! +//! # 5. hover - expect markdown greeting +//! Content-Length: 135 + +//! {"jsonrpc":"2.0","id":3,"method":"textDocument/hover","params":{"textDocument":{"uri":"file:///tmp/foo.rs"},"position":{"line":0,"character":0}}} +//! +//! # 6. goto-definition - dummy empty array +//! Content-Length: 139 + +//! {"jsonrpc":"2.0","id":4,"method":"textDocument/definition","params":{"textDocument":{"uri":"file:///tmp/foo.rs"},"position":{"line":0,"character":0}}} +//! +//! # 7. formatting - rustfmt full document +//! Content-Length: 157 + +//! {"jsonrpc":"2.0","id":5,"method":"textDocument/formatting","params":{"textDocument":{"uri":"file:///tmp/foo.rs"},"options":{"tabSize":4,"insertSpaces":true}}} +//! +//! # 8. shutdown request - server acks and prepares to exit +//! Content-Length: 67 + +//! {"jsonrpc":"2.0","id":6,"method":"shutdown","params":null} +//! +//! # 9. exit notification - terminates the server +//! Content-Length: 54 + +//! {"jsonrpc":"2.0","method":"exit","params":null} +//! ``` +//! + +use std::{error::Error, io::Write}; + +use rustc_hash::FxHashMap; // fast hash map +use std::process::Stdio; +use toolchain::command; // clippy-approved wrapper + +#[allow(clippy::print_stderr, clippy::disallowed_types, clippy::disallowed_methods)] +use anyhow::{Context, Result, anyhow, bail}; +use lsp_server::{Connection, Message, Request as ServerRequest, RequestId, Response}; +use lsp_types::notification::Notification as _; // for METHOD consts +use lsp_types::request::Request as _; +use lsp_types::{ + CompletionItem, + CompletionItemKind, + // capability helpers + CompletionOptions, + CompletionResponse, + Diagnostic, + DiagnosticSeverity, + DidChangeTextDocumentParams, + DidOpenTextDocumentParams, + DocumentFormattingParams, + Hover, + HoverContents, + HoverProviderCapability, + // core + InitializeParams, + MarkedString, + OneOf, + Position, + PublishDiagnosticsParams, + Range, + ServerCapabilities, + TextDocumentSyncCapability, + TextDocumentSyncKind, + TextEdit, + Url, + // notifications + notification::{DidChangeTextDocument, DidOpenTextDocument, PublishDiagnostics}, + // requests + request::{Completion, Formatting, GotoDefinition, HoverRequest}, +}; // for METHOD consts + +// ===================================================================== +// main +// ===================================================================== + +#[allow(clippy::print_stderr)] +fn main() -> std::result::Result<(), Box<dyn Error + Sync + Send>> { + log::error!("starting minimal_lsp"); + + // transport + let (connection, io_thread) = Connection::stdio(); + + // advertised capabilities + let caps = ServerCapabilities { + text_document_sync: Some(TextDocumentSyncCapability::Kind(TextDocumentSyncKind::FULL)), + completion_provider: Some(CompletionOptions::default()), + definition_provider: Some(OneOf::Left(true)), + hover_provider: Some(HoverProviderCapability::Simple(true)), + document_formatting_provider: Some(OneOf::Left(true)), + ..Default::default() + }; + let init_value = serde_json::json!({ + "capabilities": caps, + "offsetEncoding": ["utf-8"], + }); + + let init_params = connection.initialize(init_value)?; + main_loop(connection, init_params)?; + io_thread.join()?; + log::error!("shutting down server"); + Ok(()) +} + +// ===================================================================== +// event loop +// ===================================================================== + +fn main_loop( + connection: Connection, + params: serde_json::Value, +) -> std::result::Result<(), Box<dyn Error + Sync + Send>> { + let _init: InitializeParams = serde_json::from_value(params)?; + let mut docs: FxHashMap<Url, String> = FxHashMap::default(); + + for msg in &connection.receiver { + match msg { + Message::Request(req) => { + if connection.handle_shutdown(&req)? { + break; + } + if let Err(err) = handle_request(&connection, &req, &mut docs) { + log::error!("[lsp] request {} failed: {err}", &req.method); + } + } + Message::Notification(note) => { + if let Err(err) = handle_notification(&connection, ¬e, &mut docs) { + log::error!("[lsp] notification {} failed: {err}", note.method); + } + } + Message::Response(resp) => log::error!("[lsp] response: {resp:?}"), + } + } + Ok(()) +} + +// ===================================================================== +// notifications +// ===================================================================== + +fn handle_notification( + conn: &Connection, + note: &lsp_server::Notification, + docs: &mut FxHashMap<Url, String>, +) -> Result<()> { + match note.method.as_str() { + DidOpenTextDocument::METHOD => { + let p: DidOpenTextDocumentParams = serde_json::from_value(note.params.clone())?; + let uri = p.text_document.uri; + docs.insert(uri.clone(), p.text_document.text); + publish_dummy_diag(conn, &uri)?; + } + DidChangeTextDocument::METHOD => { + let p: DidChangeTextDocumentParams = serde_json::from_value(note.params.clone())?; + if let Some(change) = p.content_changes.into_iter().next() { + let uri = p.text_document.uri; + docs.insert(uri.clone(), change.text); + publish_dummy_diag(conn, &uri)?; + } + } + _ => {} + } + Ok(()) +} + +// ===================================================================== +// requests +// ===================================================================== + +fn handle_request( + conn: &Connection, + req: &ServerRequest, + docs: &mut FxHashMap<Url, String>, +) -> Result<()> { + match req.method.as_str() { + GotoDefinition::METHOD => { + send_ok(conn, req.id.clone(), &lsp_types::GotoDefinitionResponse::Array(Vec::new()))?; + } + Completion::METHOD => { + let item = CompletionItem { + label: "HelloFromLSP".into(), + kind: Some(CompletionItemKind::FUNCTION), + detail: Some("dummy completion".into()), + ..Default::default() + }; + send_ok(conn, req.id.clone(), &CompletionResponse::Array(vec![item]))?; + } + HoverRequest::METHOD => { + let hover = Hover { + contents: HoverContents::Scalar(MarkedString::String( + "Hello from *minimal_lsp*".into(), + )), + range: None, + }; + send_ok(conn, req.id.clone(), &hover)?; + } + Formatting::METHOD => { + let p: DocumentFormattingParams = serde_json::from_value(req.params.clone())?; + let uri = p.text_document.uri; + let text = docs + .get(&uri) + .ok_or_else(|| anyhow!("document not in cache – did you send DidOpen?"))?; + let formatted = run_rustfmt(text)?; + let edit = TextEdit { range: full_range(text), new_text: formatted }; + send_ok(conn, req.id.clone(), &vec![edit])?; + } + _ => send_err( + conn, + req.id.clone(), + lsp_server::ErrorCode::MethodNotFound, + "unhandled method", + )?, + } + Ok(()) +} + +// ===================================================================== +// diagnostics +// ===================================================================== +fn publish_dummy_diag(conn: &Connection, uri: &Url) -> Result<()> { + let diag = Diagnostic { + range: Range::new(Position::new(0, 0), Position::new(0, 1)), + severity: Some(DiagnosticSeverity::INFORMATION), + code: None, + code_description: None, + source: Some("minimal_lsp".into()), + message: "dummy diagnostic".into(), + related_information: None, + tags: None, + data: None, + }; + let params = + PublishDiagnosticsParams { uri: uri.clone(), diagnostics: vec![diag], version: None }; + conn.sender.send(Message::Notification(lsp_server::Notification::new( + PublishDiagnostics::METHOD.to_owned(), + params, + )))?; + Ok(()) +} + +// ===================================================================== +// helpers +// ===================================================================== + +fn run_rustfmt(input: &str) -> Result<String> { + let cwd = std::env::current_dir().expect("can't determine CWD"); + let mut child = command("rustfmt", &cwd, &FxHashMap::default()) + .arg("--emit") + .arg("stdout") + .stdin(Stdio::piped()) + .stdout(Stdio::piped()) + .stderr(Stdio::piped()) + .spawn() + .context("failed to spawn rustfmt – is it installed?")?; + + let Some(stdin) = child.stdin.as_mut() else { + bail!("stdin unavailable"); + }; + stdin.write_all(input.as_bytes())?; + let output = child.wait_with_output()?; + if !output.status.success() { + let stderr = String::from_utf8_lossy(&output.stderr); + bail!("rustfmt failed: {stderr}"); + } + Ok(String::from_utf8(output.stdout)?) +} + +fn full_range(text: &str) -> Range { + let last_line_idx = text.lines().count().saturating_sub(1) as u32; + let last_col = text.lines().last().map_or(0, |l| l.chars().count()) as u32; + Range::new(Position::new(0, 0), Position::new(last_line_idx, last_col)) +} + +fn send_ok<T: serde::Serialize>(conn: &Connection, id: RequestId, result: &T) -> Result<()> { + let resp = Response { id, result: Some(serde_json::to_value(result)?), error: None }; + conn.sender.send(Message::Response(resp))?; + Ok(()) +} + +fn send_err( + conn: &Connection, + id: RequestId, + code: lsp_server::ErrorCode, + msg: &str, +) -> Result<()> { + let resp = Response { + id, + result: None, + error: Some(lsp_server::ResponseError { + code: code as i32, + message: msg.into(), + data: None, + }), + }; + conn.sender.send(Message::Response(resp))?; + Ok(()) +} diff --git a/src/tools/rust-analyzer/rust-version b/src/tools/rust-analyzer/rust-version index 902793225ea..57ff326ce5a 100644 --- a/src/tools/rust-analyzer/rust-version +++ b/src/tools/rust-analyzer/rust-version @@ -1 +1 @@ -ad3b7257615c28aaf8212a189ec032b8af75de51 +a9fb6103b05c6ad6eee6bed4c0bb5a2e8e1024c6 diff --git a/src/tools/rust-analyzer/xtask/src/codegen/grammar/ast_src.rs b/src/tools/rust-analyzer/xtask/src/codegen/grammar/ast_src.rs index d8cbf894520..b9f570fe0e3 100644 --- a/src/tools/rust-analyzer/xtask/src/codegen/grammar/ast_src.rs +++ b/src/tools/rust-analyzer/xtask/src/codegen/grammar/ast_src.rs @@ -116,6 +116,8 @@ const CONTEXTUAL_KEYWORDS: &[&str] = // keywords we use for special macro expansions const CONTEXTUAL_BUILTIN_KEYWORDS: &[&str] = &[ "asm", + "naked_asm", + "global_asm", "att_syntax", "builtin", "clobber_abi", diff --git a/src/tools/rustbook/Cargo.lock b/src/tools/rustbook/Cargo.lock index 050ddf47bae..27798d6aeb0 100644 --- a/src/tools/rustbook/Cargo.lock +++ b/src/tools/rustbook/Cargo.lock @@ -885,9 +885,9 @@ dependencies = [ [[package]] name = "mdbook" -version = "0.4.51" +version = "0.4.52" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a87e65420ab45ca9c1b8cdf698f95b710cc826d373fa550f0f7fad82beac9328" +checksum = "93c284d2855916af7c5919cf9ad897cfc77d3c2db6f55429c7cfb769182030ec" dependencies = [ "ammonia", "anyhow", diff --git a/src/tools/rustbook/Cargo.toml b/src/tools/rustbook/Cargo.toml index 69c0cfaf5c9..c7c6e39f157 100644 --- a/src/tools/rustbook/Cargo.toml +++ b/src/tools/rustbook/Cargo.toml @@ -15,6 +15,6 @@ mdbook-i18n-helpers = "0.3.3" mdbook-spec = { path = "../../doc/reference/mdbook-spec" } [dependencies.mdbook] -version = "0.4.51" +version = "0.4.52" default-features = false features = ["search"] diff --git a/src/tools/rustdoc-gui-test/src/main.rs b/src/tools/rustdoc-gui-test/src/main.rs index 0e35861fbf7..5b86bea8932 100644 --- a/src/tools/rustdoc-gui-test/src/main.rs +++ b/src/tools/rustdoc-gui-test/src/main.rs @@ -1,63 +1,15 @@ +use std::env; use std::path::{Path, PathBuf}; use std::process::Command; use std::sync::Arc; -use std::{env, fs}; +use build_helper::npm; use build_helper::util::try_run; use compiletest::directives::TestProps; use config::Config; mod config; -fn get_browser_ui_test_version_inner(npm: &Path, global: bool) -> Option<String> { - let mut command = Command::new(&npm); - command.arg("list").arg("--parseable").arg("--long").arg("--depth=0"); - if global { - command.arg("--global"); - } - let lines = match command.output() { - Ok(output) => String::from_utf8_lossy(&output.stdout).into_owned(), - Err(e) => { - eprintln!( - "path to npm can be wrong, provided path: {npm:?}. Try to set npm path \ - in bootstrap.toml in [build.npm]", - ); - panic!("{:?}", e) - } - }; - lines - .lines() - .find_map(|l| l.rsplit(':').next()?.strip_prefix("browser-ui-test@")) - .map(|v| v.to_owned()) -} - -fn get_browser_ui_test_version(npm: &Path) -> Option<String> { - get_browser_ui_test_version_inner(npm, false) - .or_else(|| get_browser_ui_test_version_inner(npm, true)) -} - -fn compare_browser_ui_test_version(installed_version: &str, src: &Path) { - match fs::read_to_string( - src.join("src/ci/docker/host-x86_64/x86_64-gnu-tools/browser-ui-test.version"), - ) { - Ok(v) => { - if v.trim() != installed_version { - eprintln!( - "⚠️ Installed version of browser-ui-test (`{}`) is different than the \ - one used in the CI (`{}`)", - installed_version, v - ); - eprintln!( - "You can install this version using `npm update browser-ui-test` or by using \ - `npm install browser-ui-test@{}`", - v, - ); - } - } - Err(e) => eprintln!("Couldn't find the CI browser-ui-test version: {:?}", e), - } -} - fn find_librs<P: AsRef<Path>>(path: P) -> Option<PathBuf> { for entry in walkdir::WalkDir::new(path) { let entry = entry.ok()?; @@ -71,27 +23,6 @@ fn find_librs<P: AsRef<Path>>(path: P) -> Option<PathBuf> { fn main() -> Result<(), ()> { let config = Arc::new(Config::from_args(env::args().collect())); - // The goal here is to check if the necessary packages are installed, and if not, we - // panic. - match get_browser_ui_test_version(&config.npm) { - Some(version) => { - // We also check the version currently used in CI and emit a warning if it's not the - // same one. - compare_browser_ui_test_version(&version, &config.rust_src); - } - None => { - eprintln!( - r#" -error: rustdoc-gui test suite cannot be run because npm `browser-ui-test` dependency is missing. - -If you want to install the `browser-ui-test` dependency, run `npm install browser-ui-test` -"#, - ); - - panic!("Cannot run rustdoc-gui tests"); - } - } - let src_path = config.rust_src.join("tests/rustdoc-gui/src"); for entry in src_path.read_dir().expect("read_dir call failed") { if let Ok(entry) = entry { @@ -134,16 +65,12 @@ If you want to install the `browser-ui-test` dependency, run `npm install browse } } - let mut command = Command::new(&config.nodejs); + // FIXME(binarycat): once we get package.json in version control, this should be updated to install via that instead + let local_node_modules = + npm::install_one(&config.out_dir, &config.npm, "browser-ui-test", "0.21.1") + .expect("unable to install browser-ui-test"); - if let Ok(current_dir) = env::current_dir() { - let local_node_modules = current_dir.join("node_modules"); - if local_node_modules.exists() { - // Link the local node_modules if exists. - // This is useful when we run rustdoc-gui-test from outside of the source root. - env::set_var("NODE_PATH", local_node_modules); - } - } + let mut command = Command::new(&config.nodejs); command .arg(config.rust_src.join("src/tools/rustdoc-gui/tester.js")) @@ -154,6 +81,12 @@ If you want to install the `browser-ui-test` dependency, run `npm install browse .arg("--tests-folder") .arg(config.rust_src.join("tests/rustdoc-gui")); + if local_node_modules.exists() { + // Link the local node_modules if exists. + // This is useful when we run rustdoc-gui-test from outside of the source root. + command.env("NODE_PATH", local_node_modules); + } + for file in &config.goml_files { command.arg("--file").arg(file); } diff --git a/src/tools/rustfmt/src/items.rs b/src/tools/rustfmt/src/items.rs index 1a3897b51cb..7084639aca9 100644 --- a/src/tools/rustfmt/src/items.rs +++ b/src/tools/rustfmt/src/items.rs @@ -1172,6 +1172,7 @@ pub(crate) fn format_trait( unreachable!(); }; let ast::Trait { + constness, is_auto, safety, ident, @@ -1182,7 +1183,8 @@ pub(crate) fn format_trait( let mut result = String::with_capacity(128); let header = format!( - "{}{}{}trait ", + "{}{}{}{}trait ", + format_constness(constness), format_visibility(context, &item.vis), format_safety(safety), format_auto(is_auto), diff --git a/src/tools/tidy/src/filenames.rs b/src/tools/tidy/src/filenames.rs new file mode 100644 index 00000000000..53115f4eaa4 --- /dev/null +++ b/src/tools/tidy/src/filenames.rs @@ -0,0 +1,40 @@ +//! Tidy check to ensure that there are no filenames containing forbidden characters +//! checked into the source tree by accident: +//! - Non-UTF8 filenames +//! - Control characters such as CR or TAB +//! - Filenames containing ":" as they are not supported on Windows +//! +//! Only files added to git are checked, as it may be acceptable to have temporary +//! invalid filenames in the local directory during development. + +use std::path::Path; +use std::process::Command; + +pub fn check(root_path: &Path, bad: &mut bool) { + let stat_output = Command::new("git") + .arg("-C") + .arg(root_path) + .args(["ls-files", "-z"]) + .output() + .unwrap() + .stdout; + for filename in stat_output.split(|&b| b == 0) { + match str::from_utf8(filename) { + Err(_) => tidy_error!( + bad, + r#"non-UTF8 file names are not supported: "{}""#, + String::from_utf8_lossy(filename), + ), + Ok(name) if name.chars().any(|c| c.is_control()) => tidy_error!( + bad, + r#"control characters are not supported in file names: "{}""#, + String::from_utf8_lossy(filename), + ), + Ok(name) if name.contains(':') => tidy_error!( + bad, + r#"":" is not supported in file names because of Windows compatibility: "{name}""#, + ), + _ => (), + } + } +} diff --git a/src/tools/tidy/src/issues.txt b/src/tools/tidy/src/issues.txt index 8b57db23d01..77414bec82d 100644 --- a/src/tools/tidy/src/issues.txt +++ b/src/tools/tidy/src/issues.txt @@ -1021,7 +1021,6 @@ ui/foreign/issue-91370-foreign-fn-block-impl.rs ui/foreign/issue-99276-same-type-lifetimes.rs ui/function-pointer/issue-102289.rs ui/functions-closures/closure-expected-type/issue-38714.rs -ui/generic-associated-types/bugs/issue-100013.rs ui/generic-associated-types/bugs/issue-80626.rs ui/generic-associated-types/bugs/issue-87735.rs ui/generic-associated-types/bugs/issue-87755.rs @@ -1099,7 +1098,6 @@ ui/generic-associated-types/issue-90729.rs ui/generic-associated-types/issue-91139.rs ui/generic-associated-types/issue-91883.rs ui/generic-associated-types/issue-92033.rs -ui/generic-associated-types/issue-92096.rs ui/generic-associated-types/issue-92280.rs ui/generic-associated-types/issue-92954.rs ui/generic-associated-types/issue-93141.rs diff --git a/src/tools/tidy/src/lib.rs b/src/tools/tidy/src/lib.rs index 77855392b4d..ade4055b5bd 100644 --- a/src/tools/tidy/src/lib.rs +++ b/src/tools/tidy/src/lib.rs @@ -167,6 +167,7 @@ pub mod error_codes; pub mod ext_tool_checks; pub mod extdeps; pub mod features; +pub mod filenames; pub mod fluent_alphabetical; pub mod fluent_period; mod fluent_used; diff --git a/src/tools/tidy/src/main.rs b/src/tools/tidy/src/main.rs index a67f7a511b5..0f1116a632e 100644 --- a/src/tools/tidy/src/main.rs +++ b/src/tools/tidy/src/main.rs @@ -155,6 +155,8 @@ fn main() { check!(triagebot, &root_path); + check!(filenames, &root_path); + let collected = { drain_handles(&mut handles); diff --git a/tests/codegen/fn-parameters-on-different-lines-debuginfo.rs b/tests/codegen/fn-parameters-on-different-lines-debuginfo.rs new file mode 100644 index 00000000000..2097567f322 --- /dev/null +++ b/tests/codegen/fn-parameters-on-different-lines-debuginfo.rs @@ -0,0 +1,22 @@ +//! Make sure that line debuginfo of function parameters are correct even if +//! they are not on the same line. Regression test for +// <https://github.com/rust-lang/rust/issues/45010>. + +//@ compile-flags: -g -Copt-level=0 + +#[rustfmt::skip] // Having parameters on different lines is crucial for this test. +pub fn foo( + x_parameter_not_in_std: i32, + y_parameter_not_in_std: i32, +) -> i32 { + x_parameter_not_in_std + y_parameter_not_in_std +} + +fn main() { + foo(42, 43); // Ensure `wasm32-wasip1` keeps `foo()` (even if `-Copt-level=0`) +} + +// CHECK: !DILocalVariable(name: "x_parameter_not_in_std", arg: 1, +// CHECK-SAME: line: 9 +// CHECK: !DILocalVariable(name: "y_parameter_not_in_std", arg: 2, +// CHECK-SAME: line: 10 diff --git a/tests/codegen/sanitizer/kcfi/naked-function.rs b/tests/codegen/sanitizer/kcfi/naked-function.rs new file mode 100644 index 00000000000..2c8cdc919b8 --- /dev/null +++ b/tests/codegen/sanitizer/kcfi/naked-function.rs @@ -0,0 +1,47 @@ +//@ add-core-stubs +//@ revisions: aarch64 x86_64 +//@ [aarch64] compile-flags: --target aarch64-unknown-none +//@ [aarch64] needs-llvm-components: aarch64 +//@ [x86_64] compile-flags: --target x86_64-unknown-none +//@ [x86_64] needs-llvm-components: x86 +//@ compile-flags: -Ctarget-feature=-crt-static -Zsanitizer=kcfi -Cno-prepopulate-passes -Copt-level=0 + +#![feature(no_core, lang_items)] +#![crate_type = "lib"] +#![no_core] + +extern crate minicore; +use minicore::*; + +struct Thing; +trait MyTrait { + #[unsafe(naked)] + extern "C" fn my_naked_function() { + // the real function is defined + // CHECK: .globl + // CHECK-SAME: my_naked_function + naked_asm!("ret") + } +} +impl MyTrait for Thing {} + +// the shim calls the real function +// CHECK-LABEL: define +// CHECK-SAME: my_naked_function +// CHECK-SAME: reify.shim.fnptr + +// CHECK-LABEL: main +#[unsafe(no_mangle)] +pub fn main() { + // Trick the compiler into generating an indirect call. + const F: extern "C" fn() = Thing::my_naked_function; + + // main calls the shim function + // CHECK: call void + // CHECK-SAME: my_naked_function + // CHECK-SAME: reify.shim.fnptr + (F)(); +} + +// CHECK: declare !kcfi_type +// CHECK-SAME: my_naked_function diff --git a/tests/crashes/117629.rs b/tests/crashes/117629.rs index d8b5f328545..f63365395c6 100644 --- a/tests/crashes/117629.rs +++ b/tests/crashes/117629.rs @@ -3,8 +3,7 @@ #![feature(const_trait_impl)] -#[const_trait] -trait Tr { +const trait Tr { async fn ft1() {} } diff --git a/tests/crashes/133275-1.rs b/tests/crashes/133275-1.rs deleted file mode 100644 index 73c04f5d6e4..00000000000 --- a/tests/crashes/133275-1.rs +++ /dev/null @@ -1,13 +0,0 @@ -//@ known-bug: #133275 -#![feature(const_trait_impl)] -#![feature(associated_type_defaults)] - -#[const_trait] -trait Foo3<T> -where - Self::Baz: Clone, -{ - type Baz = T; -} - -pub fn main() {} diff --git a/tests/crashes/133275-2.rs b/tests/crashes/133275-2.rs deleted file mode 100644 index a774b3cdb69..00000000000 --- a/tests/crashes/133275-2.rs +++ /dev/null @@ -1,15 +0,0 @@ -//@ known-bug: #133275 -#![feature(const_trait_impl)] -#[const_trait] -pub trait Owo<X = <IntEnum as Uwu>::T> {} - -#[const_trait] -trait Foo3<T> -where - Self::Bar: Clone, - Self::Baz: Clone, -{ - type Bar = Vec<Self::Baz>; - type Baz = T; - //~^ ERROR the trait bound `T: Clone` is not satisfied -} diff --git a/tests/crashes/const_mut_ref_check_bypass.rs b/tests/crashes/const_mut_ref_check_bypass.rs deleted file mode 100644 index 6234536c72b..00000000000 --- a/tests/crashes/const_mut_ref_check_bypass.rs +++ /dev/null @@ -1,11 +0,0 @@ -// Version of `tests/ui/consts/const-eval/heap/alloc_intrinsic_untyped.rs` without the flag that -// suppresses the ICE. -//@ known-bug: #129233 -#![feature(core_intrinsics)] -#![feature(const_heap)] -#![feature(const_mut_refs)] -use std::intrinsics; - -const BAR: *mut i32 = unsafe { intrinsics::const_allocate(4, 4) as *mut i32 }; - -fn main() {} diff --git a/tests/mir-opt/const_prop/transmute.rs b/tests/mir-opt/const_prop/transmute.rs index 892b91a5414..33cbefbf053 100644 --- a/tests/mir-opt/const_prop/transmute.rs +++ b/tests/mir-opt/const_prop/transmute.rs @@ -56,7 +56,7 @@ pub unsafe fn undef_union_as_integer() -> u32 { pub unsafe fn unreachable_direct() -> ! { // CHECK-LABEL: fn unreachable_direct( // CHECK: = const (); - // CHECK: = const () as Never (Transmute); + // CHECK: = const ZeroSized: Never; let x: Never = unsafe { transmute(()) }; match x {} } diff --git a/tests/mir-opt/const_prop/transmute.unreachable_direct.GVN.32bit.diff b/tests/mir-opt/const_prop/transmute.unreachable_direct.GVN.32bit.diff index 3364782022d..5aeb55a5a6a 100644 --- a/tests/mir-opt/const_prop/transmute.unreachable_direct.GVN.32bit.diff +++ b/tests/mir-opt/const_prop/transmute.unreachable_direct.GVN.32bit.diff @@ -15,7 +15,7 @@ - _2 = (); - _1 = move _2 as Never (Transmute); + _2 = const (); -+ _1 = const () as Never (Transmute); ++ _1 = const ZeroSized: Never; unreachable; } } diff --git a/tests/mir-opt/const_prop/transmute.unreachable_direct.GVN.64bit.diff b/tests/mir-opt/const_prop/transmute.unreachable_direct.GVN.64bit.diff index 3364782022d..5aeb55a5a6a 100644 --- a/tests/mir-opt/const_prop/transmute.unreachable_direct.GVN.64bit.diff +++ b/tests/mir-opt/const_prop/transmute.unreachable_direct.GVN.64bit.diff @@ -15,7 +15,7 @@ - _2 = (); - _1 = move _2 as Never (Transmute); + _2 = const (); -+ _1 = const () as Never (Transmute); ++ _1 = const ZeroSized: Never; unreachable; } } diff --git a/tests/mir-opt/gvn.generic_cast_metadata.GVN.panic-abort.diff b/tests/mir-opt/gvn.generic_cast_metadata.GVN.panic-abort.diff index 770c6730775..ffe4a0272b4 100644 --- a/tests/mir-opt/gvn.generic_cast_metadata.GVN.panic-abort.diff +++ b/tests/mir-opt/gvn.generic_cast_metadata.GVN.panic-abort.diff @@ -18,7 +18,8 @@ bb0: { _4 = copy _1 as *const T (PtrToPtr); - _5 = PtrMetadata(copy _4); +- _5 = PtrMetadata(copy _4); ++ _5 = const (); _6 = copy _1 as *const (&A, [T]) (PtrToPtr); - _7 = PtrMetadata(copy _6); + _7 = PtrMetadata(copy _1); diff --git a/tests/mir-opt/gvn.generic_cast_metadata.GVN.panic-unwind.diff b/tests/mir-opt/gvn.generic_cast_metadata.GVN.panic-unwind.diff index 770c6730775..ffe4a0272b4 100644 --- a/tests/mir-opt/gvn.generic_cast_metadata.GVN.panic-unwind.diff +++ b/tests/mir-opt/gvn.generic_cast_metadata.GVN.panic-unwind.diff @@ -18,7 +18,8 @@ bb0: { _4 = copy _1 as *const T (PtrToPtr); - _5 = PtrMetadata(copy _4); +- _5 = PtrMetadata(copy _4); ++ _5 = const (); _6 = copy _1 as *const (&A, [T]) (PtrToPtr); - _7 = PtrMetadata(copy _6); + _7 = PtrMetadata(copy _1); diff --git a/tests/mir-opt/gvn.rs b/tests/mir-opt/gvn.rs index 6ef320c90de..5d348bc3c1e 100644 --- a/tests/mir-opt/gvn.rs +++ b/tests/mir-opt/gvn.rs @@ -869,7 +869,7 @@ fn generic_cast_metadata<T, A: ?Sized, B: ?Sized>(ps: *const [T], pa: *const A, // Metadata usize -> (), do not optimize. // CHECK: [[T:_.+]] = copy _1 as - // CHECK-NEXT: PtrMetadata(copy [[T]]) + // CHECK-NEXT: const (); let t1 = CastPtrToPtr::<_, *const T>(ps); let m1 = PtrMetadata(t1); diff --git a/tests/mir-opt/inline/cycle.rs b/tests/mir-opt/inline/cycle.rs index 383d0796a88..6e0f45bb3e9 100644 --- a/tests/mir-opt/inline/cycle.rs +++ b/tests/mir-opt/inline/cycle.rs @@ -13,7 +13,7 @@ fn f(g: impl Fn()) { #[inline(always)] fn g() { // CHECK-LABEL: fn g( - // CHECK-NOT: (inlined f::<fn() {main}>) + // CHECK-NOT: inlined f(main); } diff --git a/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-unwind.mir index 3b58f1d61f4..8c5fbda6392 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-unwind.mir @@ -109,7 +109,6 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { } bb4: { - StorageLive(_15); _14 = &mut _13; _15 = <Enumerate<std::slice::Iter<'_, T>> as Iterator>::next(move _14) -> [return: bb5, unwind: bb11]; } @@ -120,7 +119,6 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { } bb6: { - StorageDead(_15); StorageDead(_13); drop(_2) -> [return: bb7, unwind continue]; } @@ -135,14 +133,13 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { StorageLive(_19); _19 = &_2; StorageLive(_20); - _20 = (copy _17, copy _18); + _20 = copy ((_15 as Some).0: (usize, &T)); _21 = <impl Fn(usize, &T) as Fn<(usize, &T)>>::call(move _19, move _20) -> [return: bb9, unwind: bb11]; } bb9: { StorageDead(_20); StorageDead(_19); - StorageDead(_15); goto -> bb4; } diff --git a/tests/run-make/const-trait-stable-toolchain/const-super-trait-nightly-disabled.stderr b/tests/run-make/const-trait-stable-toolchain/const-super-trait-nightly-disabled.stderr index 5ce815b9aed..464208f989e 100644 --- a/tests/run-make/const-trait-stable-toolchain/const-super-trait-nightly-disabled.stderr +++ b/tests/run-make/const-trait-stable-toolchain/const-super-trait-nightly-disabled.stderr @@ -4,7 +4,7 @@ error: `[const]` is not allowed here LL | trait Bar: ~const Foo {} | ^^^^^^ | -note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds +note: this trait is not `const`, so it cannot have `[const]` trait bounds --> const-super-trait.rs:7:1 | LL | trait Bar: ~const Foo {} @@ -30,24 +30,24 @@ LL | const fn foo<T: ~const Bar>(x: &T) { = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> const-super-trait.rs:7:12 | LL | trait Bar: ~const Foo {} | ^^^^^^ can't be applied to `Foo` | -help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> const-super-trait.rs:9:17 | LL | const fn foo<T: ~const Bar>(x: &T) { | ^^^^^^ can't be applied to `Bar` | -help: enable `#![feature(const_trait_impl)]` in your crate and mark `Bar` as `#[const_trait]` to allow it to have `const` implementations +help: enable `#![feature(const_trait_impl)]` in your crate and mark `Bar` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Bar: ~const Foo {} | ++++++++++++++ diff --git a/tests/run-make/const-trait-stable-toolchain/const-super-trait-nightly-enabled.stderr b/tests/run-make/const-trait-stable-toolchain/const-super-trait-nightly-enabled.stderr index ef764a62b06..569e559186f 100644 --- a/tests/run-make/const-trait-stable-toolchain/const-super-trait-nightly-enabled.stderr +++ b/tests/run-make/const-trait-stable-toolchain/const-super-trait-nightly-enabled.stderr @@ -4,30 +4,30 @@ error: `[const]` is not allowed here LL | trait Bar: ~const Foo {} | ^^^^^^ | -note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds +note: this trait is not `const`, so it cannot have `[const]` trait bounds --> const-super-trait.rs:7:1 | LL | trait Bar: ~const Foo {} | ^^^^^^^^^^^^^^^^^^^^^^^^ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> const-super-trait.rs:7:12 | LL | trait Bar: ~const Foo {} | ^^^^^^ can't be applied to `Foo` | -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> const-super-trait.rs:9:17 | LL | const fn foo<T: ~const Bar>(x: &T) { | ^^^^^^ can't be applied to `Bar` | -help: mark `Bar` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Bar` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Bar: ~const Foo {} | ++++++++++++++ diff --git a/tests/run-make/const-trait-stable-toolchain/const-super-trait-stable-disabled.stderr b/tests/run-make/const-trait-stable-toolchain/const-super-trait-stable-disabled.stderr index 3dc147e076f..694e06fb6ea 100644 --- a/tests/run-make/const-trait-stable-toolchain/const-super-trait-stable-disabled.stderr +++ b/tests/run-make/const-trait-stable-toolchain/const-super-trait-stable-disabled.stderr @@ -4,7 +4,7 @@ error: `[const]` is not allowed here 7 | trait Bar: ~const Foo {} | ^^^^^^ | -note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds +note: this trait is not `const`, so it cannot have `[const]` trait bounds --> const-super-trait.rs:7:1 | 7 | trait Bar: ~const Foo {} @@ -26,25 +26,25 @@ error[E0658]: const trait impls are experimental | = note: see issue #143874 <https://github.com/rust-lang/rust/issues/143874> for more information -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> const-super-trait.rs:7:12 | 7 | trait Bar: ~const Foo {} | ^^^^^^ can't be applied to `Foo` | -note: `Foo` can't be used with `[const]` because it isn't annotated with `#[const_trait]` +note: `Foo` can't be used with `[const]` because it isn't `const` --> const-super-trait.rs:3:1 | 3 | trait Foo { | ^^^^^^^^^ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> const-super-trait.rs:9:17 | 9 | const fn foo<T: ~const Bar>(x: &T) { | ^^^^^^ can't be applied to `Bar` | -note: `Bar` can't be used with `[const]` because it isn't annotated with `#[const_trait]` +note: `Bar` can't be used with `[const]` because it isn't `const` --> const-super-trait.rs:7:1 | 7 | trait Bar: ~const Foo {} diff --git a/tests/run-make/const-trait-stable-toolchain/const-super-trait-stable-enabled.stderr b/tests/run-make/const-trait-stable-toolchain/const-super-trait-stable-enabled.stderr index 2cdeb277ca4..2109f0deb72 100644 --- a/tests/run-make/const-trait-stable-toolchain/const-super-trait-stable-enabled.stderr +++ b/tests/run-make/const-trait-stable-toolchain/const-super-trait-stable-enabled.stderr @@ -4,7 +4,7 @@ error: `[const]` is not allowed here 7 | trait Bar: ~const Foo {} | ^^^^^^ | -note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds +note: this trait is not `const`, so it cannot have `[const]` trait bounds --> const-super-trait.rs:7:1 | 7 | trait Bar: ~const Foo {} @@ -16,25 +16,25 @@ error[E0554]: `#![feature]` may not be used on the NIGHTLY release channel 1 | #![cfg_attr(feature_enabled, feature(const_trait_impl))] | ^^^^^^^^^^^^^^^^^^^^^^^^^ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> const-super-trait.rs:7:12 | 7 | trait Bar: ~const Foo {} | ^^^^^^ can't be applied to `Foo` | -note: `Foo` can't be used with `[const]` because it isn't annotated with `#[const_trait]` +note: `Foo` can't be used with `[const]` because it isn't `const` --> const-super-trait.rs:3:1 | 3 | trait Foo { | ^^^^^^^^^ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> const-super-trait.rs:9:17 | 9 | const fn foo<T: ~const Bar>(x: &T) { | ^^^^^^ can't be applied to `Bar` | -note: `Bar` can't be used with `[const]` because it isn't annotated with `#[const_trait]` +note: `Bar` can't be used with `[const]` because it isn't `const` --> const-super-trait.rs:7:1 | 7 | trait Bar: ~const Foo {} diff --git a/tests/run-make/const-trait-stable-toolchain/rmake.rs b/tests/run-make/const-trait-stable-toolchain/rmake.rs index 09a7c27a106..729b71457e9 100644 --- a/tests/run-make/const-trait-stable-toolchain/rmake.rs +++ b/tests/run-make/const-trait-stable-toolchain/rmake.rs @@ -11,9 +11,7 @@ fn main() { .env("RUSTC_BOOTSTRAP", "-1") .cfg("feature_enabled") .run_fail() - .assert_stderr_not_contains( - "as `#[const_trait]` to allow it to have `const` implementations", - ) + .assert_stderr_not_contains("as `const` to allow it to have `const` implementations") .stderr_utf8(); diff() .expected_file("const-super-trait-stable-enabled.stderr") @@ -29,7 +27,7 @@ fn main() { .ui_testing() .run_fail() .assert_stderr_not_contains("enable `#![feature(const_trait_impl)]` in your crate and mark") - .assert_stderr_contains("as `#[const_trait]` to allow it to have `const` implementations") + .assert_stderr_contains("as `const` to allow it to have `const` implementations") .stderr_utf8(); diff() .expected_file("const-super-trait-nightly-enabled.stderr") @@ -40,9 +38,7 @@ fn main() { .env("RUSTC_BOOTSTRAP", "-1") .run_fail() .assert_stderr_not_contains("enable `#![feature(const_trait_impl)]` in your crate and mark") - .assert_stderr_not_contains( - "as `#[const_trait]` to allow it to have `const` implementations", - ) + .assert_stderr_not_contains("as `const` to allow it to have `const` implementations") .stderr_utf8(); diff() .expected_file("const-super-trait-stable-disabled.stderr") diff --git a/tests/run-make/export-executable-symbols/rmake.rs b/tests/run-make/export-executable-symbols/rmake.rs index 884c7362822..aa130b0855b 100644 --- a/tests/run-make/export-executable-symbols/rmake.rs +++ b/tests/run-make/export-executable-symbols/rmake.rs @@ -4,20 +4,22 @@ // symbol. // See https://github.com/rust-lang/rust/pull/85673 -//@ only-unix -// Reason: the export-executable-symbols flag only works on Unix -// due to hardcoded platform-specific implementation -// (See #85673) -//@ ignore-cross-compile //@ ignore-wasm +//@ ignore-cross-compile -use run_make_support::{bin_name, llvm_readobj, rustc}; +use run_make_support::object::Object; +use run_make_support::{bin_name, is_darwin, object, rustc}; fn main() { - rustc().arg("-Zexport-executable-symbols").input("main.rs").crate_type("bin").run(); - llvm_readobj() - .symbols() - .input(bin_name("main")) - .run() - .assert_stdout_contains("exported_symbol"); + rustc() + .arg("-Ctarget-feature=-crt-static") + .arg("-Zexport-executable-symbols") + .input("main.rs") + .crate_type("bin") + .run(); + let name: &[u8] = if is_darwin() { b"_exported_symbol" } else { b"exported_symbol" }; + let contents = std::fs::read(bin_name("main")).unwrap(); + let object = object::File::parse(contents.as_slice()).unwrap(); + let found = object.exports().unwrap().iter().any(|x| x.name() == name); + assert!(found); } diff --git a/tests/run-make/mte-ffi/bar.h b/tests/run-make/mte-ffi/bar.h index 9b030c618d1..a2292ae02a3 100644 --- a/tests/run-make/mte-ffi/bar.h +++ b/tests/run-make/mte-ffi/bar.h @@ -1,5 +1,3 @@ -// FIXME(#141600) the mte-ffi test doesn't fail in aarch64-gnu - #ifndef __BAR_H #define __BAR_H diff --git a/tests/run-make/mte-ffi/bar_float.c b/tests/run-make/mte-ffi/bar_float.c index acc2f5d9266..a1590f62765 100644 --- a/tests/run-make/mte-ffi/bar_float.c +++ b/tests/run-make/mte-ffi/bar_float.c @@ -3,9 +3,9 @@ #include <stdint.h> #include "bar.h" -extern void foo(float*); +extern void foo(char*); -void bar(float *ptr) { +void bar(char *ptr) { if (((uintptr_t)ptr >> 56) != 0x1f) { fprintf(stderr, "Top byte corrupted on Rust -> C FFI boundary!\n"); exit(1); diff --git a/tests/run-make/mte-ffi/bar_int.c b/tests/run-make/mte-ffi/bar_int.c index c92e765302c..d1c79e95dc9 100644 --- a/tests/run-make/mte-ffi/bar_int.c +++ b/tests/run-make/mte-ffi/bar_int.c @@ -5,7 +5,7 @@ extern void foo(unsigned int *); -void bar(unsigned int *ptr) { +void bar(char *ptr) { if (((uintptr_t)ptr >> 56) != 0x1f) { fprintf(stderr, "Top byte corrupted on Rust -> C FFI boundary!\n"); exit(1); diff --git a/tests/run-make/mte-ffi/bar_string.c b/tests/run-make/mte-ffi/bar_string.c index 8e1202f6fd1..5669ffd6695 100644 --- a/tests/run-make/mte-ffi/bar_string.c +++ b/tests/run-make/mte-ffi/bar_string.c @@ -1,7 +1,6 @@ #include <stdio.h> #include <stdlib.h> #include <stdint.h> -#include <string.h> #include "bar.h" extern void foo(char*); @@ -33,7 +32,7 @@ int main(void) // Store an arbitrary tag in bits 56-59 of the pointer (where an MTE tag may be), // and a different value in the ignored top 4 bits. - ptr = (char *)((uintptr_t)ptr | 0x1fl << 56); + ptr = (unsigned int *)((uintptr_t)ptr | 0x1fl << 56); if (mte_enabled()) { set_tag(ptr); diff --git a/tests/run-make/mte-ffi/rmake.rs b/tests/run-make/mte-ffi/rmake.rs index a8da0dc0ee0..71d8318d946 100644 --- a/tests/run-make/mte-ffi/rmake.rs +++ b/tests/run-make/mte-ffi/rmake.rs @@ -2,6 +2,13 @@ //! FFI boundaries (C <-> Rust). This test does not require MTE: whilst the test will use MTE if //! available, if it is not, arbitrary tag bits are set using TBI. +//@ ignore-test (FIXME #141600) +// +// FIXME(#141600): this test is broken in two ways: +// 1. This test triggers `-Wincompatible-pointer-types` on GCC 14. +// 2. This test requires ARMv8.5+ w/ MTE extensions enabled, but GHA CI runner hardware do not have +// this enabled. + //@ only-aarch64-unknown-linux-gnu // Reason: this test is only valid for AArch64 with `gcc`. The linker must be explicitly specified // when cross-compiling, so it is limited to `aarch64-unknown-linux-gnu`. diff --git a/tests/run-make/option-output-no-space/main.rs b/tests/run-make/option-output-no-space/main.rs new file mode 100644 index 00000000000..f328e4d9d04 --- /dev/null +++ b/tests/run-make/option-output-no-space/main.rs @@ -0,0 +1 @@ +fn main() {} diff --git a/tests/run-make/option-output-no-space/rmake.rs b/tests/run-make/option-output-no-space/rmake.rs new file mode 100644 index 00000000000..2c42f15aa89 --- /dev/null +++ b/tests/run-make/option-output-no-space/rmake.rs @@ -0,0 +1,95 @@ +// This test is to check if the warning is emitted when no space +// between `-o` and arg is applied, see issue #142812 + +//@ ignore-cross-compile +use run_make_support::rustc; + +fn main() { + // test fake args + rustc() + .input("main.rs") + .arg("-optimize") + .run() + .assert_stderr_contains( + "warning: option `-o` has no space between flag name and value, which can be confusing", + ) + .assert_stderr_contains( + "note: output filename `-o ptimize` is applied instead of a flag named `optimize`", + ); + rustc() + .input("main.rs") + .arg("-o0") + .run() + .assert_stderr_contains( + "warning: option `-o` has no space between flag name and value, which can be confusing", + ) + .assert_stderr_contains( + "note: output filename `-o 0` is applied instead of a flag named `o0`", + ); + rustc().input("main.rs").arg("-o1").run(); + // test real args by iter optgroups + rustc() + .input("main.rs") + .arg("-out-dir") + .run() + .assert_stderr_contains( + "warning: option `-o` has no space between flag name and value, which can be confusing", + ) + .assert_stderr_contains( + "note: output filename `-o ut-dir` is applied instead of a flag named `out-dir`", + ) + .assert_stderr_contains( + "help: insert a space between `-o` and `ut-dir` if this is intentional: `-o ut-dir`", + ); + // test real args by iter CG_OPTIONS + rustc() + .input("main.rs") + .arg("-opt_level") + .run() + .assert_stderr_contains( + "warning: option `-o` has no space between flag name and value, which can be confusing", + ) + .assert_stderr_contains( + "note: output filename `-o pt_level` is applied instead of a flag named `opt_level`", + ) + .assert_stderr_contains( + "help: insert a space between `-o` and `pt_level` if this is intentional: `-o pt_level`" + ); + // separater in-sensitive + rustc() + .input("main.rs") + .arg("-opt-level") + .run() + .assert_stderr_contains( + "warning: option `-o` has no space between flag name and value, which can be confusing", + ) + .assert_stderr_contains( + "note: output filename `-o pt-level` is applied instead of a flag named `opt-level`", + ) + .assert_stderr_contains( + "help: insert a space between `-o` and `pt-level` if this is intentional: `-o pt-level`" + ); + rustc() + .input("main.rs") + .arg("-overflow-checks") + .run() + .assert_stderr_contains( + "warning: option `-o` has no space between flag name and value, which can be confusing", + ) + .assert_stderr_contains( + "note: output filename `-o verflow-checks` \ + is applied instead of a flag named `overflow-checks`", + ) + .assert_stderr_contains( + "help: insert a space between `-o` and `verflow-checks` \ + if this is intentional: `-o verflow-checks`", + ); + + // No warning for Z_OPTIONS + rustc().input("main.rs").arg("-oom").run().assert_stderr_equals(""); + + // test no warning when there is space between `-o` and arg + rustc().input("main.rs").arg("-o").arg("ptimize").run().assert_stderr_equals(""); + rustc().input("main.rs").arg("--out-dir").arg("xxx").run().assert_stderr_equals(""); + rustc().input("main.rs").arg("-o").arg("out-dir").run().assert_stderr_equals(""); +} diff --git a/tests/rustdoc-json/attrs/automatically_derived.rs b/tests/rustdoc-json/attrs/automatically_derived.rs index 4e1ab3d145e..9ba310d3655 100644 --- a/tests/rustdoc-json/attrs/automatically_derived.rs +++ b/tests/rustdoc-json/attrs/automatically_derived.rs @@ -9,5 +9,5 @@ impl Default for Manual { } } -//@ is '$.index[?(@.inner.impl.for.resolved_path.path == "Derive" && @.inner.impl.trait.path == "Default")].attrs' '["#[automatically_derived]"]' +//@ is '$.index[?(@.inner.impl.for.resolved_path.path == "Derive" && @.inner.impl.trait.path == "Default")].attrs' '["automatically_derived"]' //@ is '$.index[?(@.inner.impl.for.resolved_path.path == "Manual" && @.inner.impl.trait.path == "Default")].attrs' '[]' diff --git a/tests/rustdoc-json/attrs/cold.rs b/tests/rustdoc-json/attrs/cold.rs index e219345d669..ec1926e894e 100644 --- a/tests/rustdoc-json/attrs/cold.rs +++ b/tests/rustdoc-json/attrs/cold.rs @@ -1,3 +1,3 @@ -//@ is "$.index[?(@.name=='cold_fn')].attrs" '["#[attr = Cold]"]' +//@ is "$.index[?(@.name=='cold_fn')].attrs" '[{"other": "#[attr = Cold]"}]' #[cold] pub fn cold_fn() {} diff --git a/tests/rustdoc-json/attrs/export_name_2021.rs b/tests/rustdoc-json/attrs/export_name_2021.rs index 254e9f6ef5b..451d9b9eb37 100644 --- a/tests/rustdoc-json/attrs/export_name_2021.rs +++ b/tests/rustdoc-json/attrs/export_name_2021.rs @@ -1,6 +1,6 @@ //@ edition: 2021 #![no_std] -//@ is "$.index[?(@.name=='example')].attrs" '["#[export_name = \"altered\"]"]' +//@ is "$.index[?(@.name=='example')].attrs" '[{"export_name": "altered"}]' #[export_name = "altered"] pub extern "C" fn example() {} diff --git a/tests/rustdoc-json/attrs/export_name_2024.rs b/tests/rustdoc-json/attrs/export_name_2024.rs index 8129c109306..7e398db92ab 100644 --- a/tests/rustdoc-json/attrs/export_name_2024.rs +++ b/tests/rustdoc-json/attrs/export_name_2024.rs @@ -2,8 +2,8 @@ #![no_std] // The representation of `#[unsafe(export_name = ..)]` in rustdoc in edition 2024 -// is still `#[export_name = ..]` without the `unsafe` attribute wrapper. +// doesn't mention the `unsafe`. -//@ is "$.index[?(@.name=='example')].attrs" '["#[export_name = \"altered\"]"]' +//@ is "$.index[?(@.name=='example')].attrs" '[{"export_name": "altered"}]' #[unsafe(export_name = "altered")] pub extern "C" fn example() {} diff --git a/tests/rustdoc-json/attrs/inline.rs b/tests/rustdoc-json/attrs/inline.rs index b9ea6ab1d10..2aed49a48a5 100644 --- a/tests/rustdoc-json/attrs/inline.rs +++ b/tests/rustdoc-json/attrs/inline.rs @@ -1,11 +1,11 @@ -//@ is "$.index[?(@.name=='just_inline')].attrs" '["#[attr = Inline(Hint)]"]' +//@ is "$.index[?(@.name=='just_inline')].attrs" '[{"other": "#[attr = Inline(Hint)]"}]' #[inline] pub fn just_inline() {} -//@ is "$.index[?(@.name=='inline_always')].attrs" '["#[attr = Inline(Always)]"]' +//@ is "$.index[?(@.name=='inline_always')].attrs" '[{"other": "#[attr = Inline(Always)]"}]' #[inline(always)] pub fn inline_always() {} -//@ is "$.index[?(@.name=='inline_never')].attrs" '["#[attr = Inline(Never)]"]' +//@ is "$.index[?(@.name=='inline_never')].attrs" '[{"other": "#[attr = Inline(Never)]"}]' #[inline(never)] pub fn inline_never() {} diff --git a/tests/rustdoc-json/attrs/link_section_2021.rs b/tests/rustdoc-json/attrs/link_section_2021.rs index a1312f4210b..acd8ecd0e30 100644 --- a/tests/rustdoc-json/attrs/link_section_2021.rs +++ b/tests/rustdoc-json/attrs/link_section_2021.rs @@ -1,6 +1,7 @@ //@ edition: 2021 #![no_std] -//@ is "$.index[?(@.name=='example')].attrs" '["#[link_section = \".text\"]"]' +//@ count "$.index[?(@.name=='example')].attrs[*]" 1 +//@ is "$.index[?(@.name=='example')].attrs[*].link_section" '".text"' #[link_section = ".text"] pub extern "C" fn example() {} diff --git a/tests/rustdoc-json/attrs/link_section_2024.rs b/tests/rustdoc-json/attrs/link_section_2024.rs index edb028451a8..8107493229b 100644 --- a/tests/rustdoc-json/attrs/link_section_2024.rs +++ b/tests/rustdoc-json/attrs/link_section_2024.rs @@ -4,6 +4,7 @@ // Since the 2024 edition the link_section attribute must use the unsafe qualification. // However, the unsafe qualification is not shown by rustdoc. -//@ is "$.index[?(@.name=='example')].attrs" '["#[link_section = \".text\"]"]' +//@ count "$.index[?(@.name=='example')].attrs[*]" 1 +//@ is "$.index[?(@.name=='example')].attrs[*].link_section" '".text"' #[unsafe(link_section = ".text")] pub extern "C" fn example() {} diff --git a/tests/rustdoc-json/attrs/must_use.rs b/tests/rustdoc-json/attrs/must_use.rs index 3ca6f5a75a5..3f924c5169c 100644 --- a/tests/rustdoc-json/attrs/must_use.rs +++ b/tests/rustdoc-json/attrs/must_use.rs @@ -1,9 +1,9 @@ #![no_std] -//@ is "$.index[?(@.name=='example')].attrs" '["#[attr = MustUse]"]' +//@ is "$.index[?(@.name=='example')].attrs[*].must_use.reason" null #[must_use] pub fn example() -> impl Iterator<Item = i64> {} -//@ is "$.index[?(@.name=='explicit_message')].attrs" '["#[attr = MustUse {reason: \"does nothing if you do not use it\"}]"]' +//@ is "$.index[?(@.name=='explicit_message')].attrs[*].must_use.reason" '"does nothing if you do not use it"' #[must_use = "does nothing if you do not use it"] pub fn explicit_message() -> impl Iterator<Item = i64> {} diff --git a/tests/rustdoc-json/attrs/no_mangle_2021.rs b/tests/rustdoc-json/attrs/no_mangle_2021.rs index 588be7256db..703dcb56491 100644 --- a/tests/rustdoc-json/attrs/no_mangle_2021.rs +++ b/tests/rustdoc-json/attrs/no_mangle_2021.rs @@ -1,6 +1,6 @@ //@ edition: 2021 #![no_std] -//@ is "$.index[?(@.name=='example')].attrs" '["#[no_mangle]"]' +//@ is "$.index[?(@.name=='example')].attrs" '["no_mangle"]' #[no_mangle] pub extern "C" fn example() {} diff --git a/tests/rustdoc-json/attrs/no_mangle_2024.rs b/tests/rustdoc-json/attrs/no_mangle_2024.rs index 0d500e20e6c..8af00eeda6b 100644 --- a/tests/rustdoc-json/attrs/no_mangle_2024.rs +++ b/tests/rustdoc-json/attrs/no_mangle_2024.rs @@ -4,6 +4,6 @@ // The representation of `#[unsafe(no_mangle)]` in rustdoc in edition 2024 // is still `#[no_mangle]` without the `unsafe` attribute wrapper. -//@ is "$.index[?(@.name=='example')].attrs" '["#[no_mangle]"]' +//@ is "$.index[?(@.name=='example')].attrs" '["no_mangle"]' #[unsafe(no_mangle)] pub extern "C" fn example() {} diff --git a/tests/rustdoc-json/attrs/non_exhaustive.rs b/tests/rustdoc-json/attrs/non_exhaustive.rs index b95f1a8171f..e4e6c8fd53b 100644 --- a/tests/rustdoc-json/attrs/non_exhaustive.rs +++ b/tests/rustdoc-json/attrs/non_exhaustive.rs @@ -1,18 +1,18 @@ #![no_std] -//@ is "$.index[?(@.name=='MyEnum')].attrs" '["#[non_exhaustive]"]' +//@ is "$.index[?(@.name=='MyEnum')].attrs" '["non_exhaustive"]' #[non_exhaustive] pub enum MyEnum { First, } pub enum NonExhaustiveVariant { - //@ is "$.index[?(@.name=='Variant')].attrs" '["#[non_exhaustive]"]' + //@ is "$.index[?(@.name=='Variant')].attrs" '["non_exhaustive"]' #[non_exhaustive] Variant(i64), } -//@ is "$.index[?(@.name=='MyStruct')].attrs" '["#[non_exhaustive]"]' +//@ is "$.index[?(@.name=='MyStruct')].attrs" '["non_exhaustive"]' #[non_exhaustive] pub struct MyStruct { pub x: i64, diff --git a/tests/rustdoc-json/attrs/optimize.rs b/tests/rustdoc-json/attrs/optimize.rs index 0bed0ad18c3..5988120ab2f 100644 --- a/tests/rustdoc-json/attrs/optimize.rs +++ b/tests/rustdoc-json/attrs/optimize.rs @@ -1,13 +1,13 @@ #![feature(optimize_attribute)] -//@ is "$.index[?(@.name=='speed')].attrs" '["#[attr = Optimize(Speed)]"]' +//@ is "$.index[?(@.name=='speed')].attrs" '[{"other": "#[attr = Optimize(Speed)]"}]' #[optimize(speed)] pub fn speed() {} -//@ is "$.index[?(@.name=='size')].attrs" '["#[attr = Optimize(Size)]"]' +//@ is "$.index[?(@.name=='size')].attrs" '[{"other": "#[attr = Optimize(Size)]"}]' #[optimize(size)] pub fn size() {} -//@ is "$.index[?(@.name=='none')].attrs" '["#[attr = Optimize(DoNotOptimize)]"]' +//@ is "$.index[?(@.name=='none')].attrs" '[{"other": "#[attr = Optimize(DoNotOptimize)]"}]' #[optimize(none)] pub fn none() {} diff --git a/tests/rustdoc-json/attrs/repr_align.rs b/tests/rustdoc-json/attrs/repr_align.rs index c6debda7f1c..f9d3417c485 100644 --- a/tests/rustdoc-json/attrs/repr_align.rs +++ b/tests/rustdoc-json/attrs/repr_align.rs @@ -1,6 +1,7 @@ #![no_std] -//@ is "$.index[?(@.name=='Aligned')].attrs" '["#[repr(align(4))]"]' +//@ count "$.index[?(@.name=='Aligned')].attrs[*]" 1 +//@ is "$.index[?(@.name=='Aligned')].attrs[*].repr.align" 4 #[repr(align(4))] pub struct Aligned { a: i8, diff --git a/tests/rustdoc-json/attrs/repr_c.rs b/tests/rustdoc-json/attrs/repr_c.rs index e6219413f30..89dbc16cb2a 100644 --- a/tests/rustdoc-json/attrs/repr_c.rs +++ b/tests/rustdoc-json/attrs/repr_c.rs @@ -1,16 +1,28 @@ #![no_std] -//@ is "$.index[?(@.name=='ReprCStruct')].attrs" '["#[repr(C)]"]' +//@ count "$.index[?(@.name=='ReprCStruct')].attrs" 1 +//@ is "$.index[?(@.name=='ReprCStruct')].attrs[*].repr.kind" '"c"' +//@ is "$.index[?(@.name=='ReprCStruct')].attrs[*].repr.int" null +//@ is "$.index[?(@.name=='ReprCStruct')].attrs[*].repr.packed" null +//@ is "$.index[?(@.name=='ReprCStruct')].attrs[*].repr.align" null #[repr(C)] pub struct ReprCStruct(pub i64); -//@ is "$.index[?(@.name=='ReprCEnum')].attrs" '["#[repr(C)]"]' +//@ count "$.index[?(@.name=='ReprCEnum')].attrs" 1 +//@ is "$.index[?(@.name=='ReprCEnum')].attrs[*].repr.kind" '"c"' +//@ is "$.index[?(@.name=='ReprCEnum')].attrs[*].repr.int" null +//@ is "$.index[?(@.name=='ReprCEnum')].attrs[*].repr.packed" null +//@ is "$.index[?(@.name=='ReprCEnum')].attrs[*].repr.align" null #[repr(C)] pub enum ReprCEnum { First, } -//@ is "$.index[?(@.name=='ReprCUnion')].attrs" '["#[repr(C)]"]' +//@ count "$.index[?(@.name=='ReprCUnion')].attrs" 1 +//@ is "$.index[?(@.name=='ReprCUnion')].attrs[*].repr.kind" '"c"' +//@ is "$.index[?(@.name=='ReprCUnion')].attrs[*].repr.int" null +//@ is "$.index[?(@.name=='ReprCUnion')].attrs[*].repr.packed" null +//@ is "$.index[?(@.name=='ReprCUnion')].attrs[*].repr.align" null #[repr(C)] pub union ReprCUnion { pub left: i64, diff --git a/tests/rustdoc-json/attrs/repr_c_int_enum.rs b/tests/rustdoc-json/attrs/repr_c_int_enum.rs new file mode 100644 index 00000000000..e90bcf2b5c6 --- /dev/null +++ b/tests/rustdoc-json/attrs/repr_c_int_enum.rs @@ -0,0 +1,11 @@ +//@ count "$.index[?(@.name=='Foo')].attrs" 1 +//@ is "$.index[?(@.name=='Foo')].attrs[*].repr.kind" '"c"' +//@ is "$.index[?(@.name=='Foo')].attrs[*].repr.int" '"u8"' +//@ is "$.index[?(@.name=='Foo')].attrs[*].repr.packed" null +//@ is "$.index[?(@.name=='Foo')].attrs[*].repr.align" 16 +#[repr(C, u8)] +#[repr(align(16))] +pub enum Foo { + A(bool) = b'A', + B(char) = b'C', +} diff --git a/tests/rustdoc-json/attrs/repr_combination.rs b/tests/rustdoc-json/attrs/repr_combination.rs index 6fe29c5eac0..bd4a8563b6f 100644 --- a/tests/rustdoc-json/attrs/repr_combination.rs +++ b/tests/rustdoc-json/attrs/repr_combination.rs @@ -1,35 +1,34 @@ #![no_std] // Combinations of `#[repr(..)]` attributes. -// Rustdoc JSON emits normalized output, regardless of the original source. -//@ is "$.index[?(@.name=='ReprCI8')].attrs" '["#[repr(C, i8)]"]' +//@ is "$.index[?(@.name=='ReprCI8')].attrs" '[{"repr":{"align":null,"int":"i8","kind":"c","packed":null}}]' #[repr(C, i8)] pub enum ReprCI8 { First, } -//@ is "$.index[?(@.name=='SeparateReprCI16')].attrs" '["#[repr(C, i16)]"]' +//@ is "$.index[?(@.name=='SeparateReprCI16')].attrs" '[{"repr":{"align":null,"int":"i16","kind":"c","packed":null}}]' #[repr(C)] #[repr(i16)] pub enum SeparateReprCI16 { First, } -//@ is "$.index[?(@.name=='ReversedReprCUsize')].attrs" '["#[repr(C, usize)]"]' +//@ is "$.index[?(@.name=='ReversedReprCUsize')].attrs" '[{"repr":{"align":null,"int":"usize","kind":"c","packed":null}}]' #[repr(usize, C)] pub enum ReversedReprCUsize { First, } -//@ is "$.index[?(@.name=='ReprCPacked')].attrs" '["#[repr(C, packed(1))]"]' +//@ is "$.index[?(@.name=='ReprCPacked')].attrs" '[{"repr":{"align":null,"int":null,"kind":"c","packed":1}}]' #[repr(C, packed)] pub struct ReprCPacked { a: i8, b: i64, } -//@ is "$.index[?(@.name=='SeparateReprCPacked')].attrs" '["#[repr(C, packed(2))]"]' +//@ is "$.index[?(@.name=='SeparateReprCPacked')].attrs" '[{"repr":{"align":null,"int":null,"kind":"c","packed":2}}]' #[repr(C)] #[repr(packed(2))] pub struct SeparateReprCPacked { @@ -37,21 +36,21 @@ pub struct SeparateReprCPacked { b: i64, } -//@ is "$.index[?(@.name=='ReversedReprCPacked')].attrs" '["#[repr(C, packed(2))]"]' +//@ is "$.index[?(@.name=='ReversedReprCPacked')].attrs" '[{"repr":{"align":null,"int":null,"kind":"c","packed":2}}]' #[repr(packed(2), C)] pub struct ReversedReprCPacked { a: i8, b: i64, } -//@ is "$.index[?(@.name=='ReprCAlign')].attrs" '["#[repr(C, align(16))]"]' +//@ is "$.index[?(@.name=='ReprCAlign')].attrs" '[{"repr":{"align":16,"int":null,"kind":"c","packed":null}}]' #[repr(C, align(16))] pub struct ReprCAlign { a: i8, b: i64, } -//@ is "$.index[?(@.name=='SeparateReprCAlign')].attrs" '["#[repr(C, align(2))]"]' +//@ is "$.index[?(@.name=='SeparateReprCAlign')].attrs" '[{"repr":{"align":2,"int":null,"kind":"c","packed":null}}]' #[repr(C)] #[repr(align(2))] pub struct SeparateReprCAlign { @@ -59,25 +58,25 @@ pub struct SeparateReprCAlign { b: i64, } -//@ is "$.index[?(@.name=='ReversedReprCAlign')].attrs" '["#[repr(C, align(2))]"]' +//@ is "$.index[?(@.name=='ReversedReprCAlign')].attrs" '[{"repr":{"align":2,"int":null,"kind":"c","packed":null}}]' #[repr(align(2), C)] pub struct ReversedReprCAlign { a: i8, b: i64, } -//@ is "$.index[?(@.name=='AlignedExplicitRepr')].attrs" '["#[repr(C, align(16), isize)]"]' +//@ is "$.index[?(@.name=='AlignedExplicitRepr')].attrs" '[{"repr":{"align":16,"int":"isize","kind":"c","packed":null}}]' #[repr(C, align(16), isize)] pub enum AlignedExplicitRepr { First, } -//@ is "$.index[?(@.name=='ReorderedAlignedExplicitRepr')].attrs" '["#[repr(C, align(16), isize)]"]' +//@ is "$.index[?(@.name=='ReorderedAlignedExplicitRepr')].attrs" '[{"repr":{"align":16,"int":"isize","kind":"c","packed":null}}]' #[repr(isize, C, align(16))] pub enum ReorderedAlignedExplicitRepr { First, } -//@ is "$.index[?(@.name=='Transparent')].attrs" '["#[repr(transparent)]"]' +//@ is "$.index[?(@.name=='Transparent')].attrs" '[{"repr":{"align":null,"int":null,"kind":"transparent","packed":null}}]' #[repr(transparent)] pub struct Transparent(i64); diff --git a/tests/rustdoc-json/attrs/repr_int_enum.rs b/tests/rustdoc-json/attrs/repr_int_enum.rs index 9b09f341d4f..79e17f53ad9 100644 --- a/tests/rustdoc-json/attrs/repr_int_enum.rs +++ b/tests/rustdoc-json/attrs/repr_int_enum.rs @@ -1,18 +1,27 @@ #![no_std] -//@ is "$.index[?(@.name=='I8')].attrs" '["#[repr(i8)]"]' +//@ is "$.index[?(@.name=='I8')].attrs[*].repr.int" '"i8"' +//@ is "$.index[?(@.name=='I8')].attrs[*].repr.kind" '"rust"' +//@ is "$.index[?(@.name=='I8')].attrs[*].repr.align" null +//@ is "$.index[?(@.name=='I8')].attrs[*].repr.packed" null #[repr(i8)] pub enum I8 { First, } -//@ is "$.index[?(@.name=='I32')].attrs" '["#[repr(i32)]"]' +//@ is "$.index[?(@.name=='I32')].attrs[*].repr.int" '"i32"' +//@ is "$.index[?(@.name=='I32')].attrs[*].repr.kind" '"rust"' +//@ is "$.index[?(@.name=='I32')].attrs[*].repr.align" null +//@ is "$.index[?(@.name=='I32')].attrs[*].repr.packed" null #[repr(i32)] pub enum I32 { First, } -//@ is "$.index[?(@.name=='Usize')].attrs" '["#[repr(usize)]"]' +//@ is "$.index[?(@.name=='Usize')].attrs[*].repr.int" '"usize"' +//@ is "$.index[?(@.name=='Usize')].attrs[*].repr.kind" '"rust"' +//@ is "$.index[?(@.name=='Usize')].attrs[*].repr.align" null +//@ is "$.index[?(@.name=='Usize')].attrs[*].repr.packed" null #[repr(usize)] pub enum Usize { First, diff --git a/tests/rustdoc-json/attrs/repr_packed.rs b/tests/rustdoc-json/attrs/repr_packed.rs index 9f3fd86c4b0..ab573835b45 100644 --- a/tests/rustdoc-json/attrs/repr_packed.rs +++ b/tests/rustdoc-json/attrs/repr_packed.rs @@ -1,16 +1,18 @@ #![no_std] // Note the normalization: -// `#[repr(packed)]` in source becomes `#[repr(packed(1))]` in rustdoc JSON. +// `#[repr(packed)]` in source becomes `{"repr": {"packed": 1, ...}}` in rustdoc JSON. // -//@ is "$.index[?(@.name=='Packed')].attrs" '["#[repr(packed(1))]"]' +//@ is "$.index[?(@.name=='Packed')].attrs[*].repr.packed" 1 +//@ is "$.index[?(@.name=='Packed')].attrs[*].repr.kind" '"rust"' #[repr(packed)] pub struct Packed { a: i8, b: i64, } -//@ is "$.index[?(@.name=='PackedAligned')].attrs" '["#[repr(packed(4))]"]' +//@ is "$.index[?(@.name=='PackedAligned')].attrs[*].repr.packed" 4 +//@ is "$.index[?(@.name=='PackedAligned')].attrs[*].repr.kind" '"rust"' #[repr(packed(4))] pub struct PackedAligned { a: i8, diff --git a/tests/rustdoc-json/attrs/target_feature.rs b/tests/rustdoc-json/attrs/target_feature.rs index 01bc4f54d32..efe3752c166 100644 --- a/tests/rustdoc-json/attrs/target_feature.rs +++ b/tests/rustdoc-json/attrs/target_feature.rs @@ -1,38 +1,49 @@ -//@ is "$.index[?(@.name=='test1')].attrs" '["#[target_feature(enable=\"avx\")]"]' //@ is "$.index[?(@.name=='test1')].inner.function.header.is_unsafe" false +//@ count "$.index[?(@.name=='test1')].attrs[*]" 1 +//@ is "$.index[?(@.name=='test1')].attrs[*].target_feature.enable" '["avx"]' #[target_feature(enable = "avx")] pub fn test1() {} -//@ is "$.index[?(@.name=='test2')].attrs" '["#[target_feature(enable=\"avx\", enable=\"avx2\")]"]' //@ is "$.index[?(@.name=='test2')].inner.function.header.is_unsafe" false +//@ count "$.index[?(@.name=='test2')].attrs[*]" 1 +//@ is "$.index[?(@.name=='test2')].attrs[*].target_feature.enable" '["avx", "avx2"]' #[target_feature(enable = "avx,avx2")] pub fn test2() {} -//@ is "$.index[?(@.name=='test3')].attrs" '["#[target_feature(enable=\"avx\", enable=\"avx2\")]"]' //@ is "$.index[?(@.name=='test3')].inner.function.header.is_unsafe" false +//@ count "$.index[?(@.name=='test3')].attrs[*]" 1 +//@ is "$.index[?(@.name=='test3')].attrs[*].target_feature.enable" '["avx", "avx2"]' #[target_feature(enable = "avx", enable = "avx2")] pub fn test3() {} -//@ is "$.index[?(@.name=='test4')].attrs" '["#[target_feature(enable=\"avx\", enable=\"avx2\", enable=\"avx512f\")]"]' //@ is "$.index[?(@.name=='test4')].inner.function.header.is_unsafe" false +//@ count "$.index[?(@.name=='test4')].attrs[*]" 1 +//@ is "$.index[?(@.name=='test4')].attrs[*].target_feature.enable" '["avx", "avx2", "avx512f"]' #[target_feature(enable = "avx", enable = "avx2,avx512f")] pub fn test4() {} -//@ is "$.index[?(@.name=='test_unsafe_fn')].attrs" '["#[target_feature(enable=\"avx\")]"]' +//@ count "$.index[?(@.name=='test5')].attrs[*]" 1 +//@ is "$.index[?(@.name=='test5')].attrs[*].target_feature.enable" '["avx", "avx2"]' +#[target_feature(enable = "avx")] +#[target_feature(enable = "avx2")] +pub fn test5() {} + //@ is "$.index[?(@.name=='test_unsafe_fn')].inner.function.header.is_unsafe" true +//@ count "$.index[?(@.name=='test_unsafe_fn')].attrs[*]" 1 +//@ is "$.index[?(@.name=='test_unsafe_fn')].attrs[*].target_feature.enable" '["avx"]' #[target_feature(enable = "avx")] pub unsafe fn test_unsafe_fn() {} pub struct Example; impl Example { - //@ is "$.index[?(@.name=='safe_assoc_fn')].attrs" '["#[target_feature(enable=\"avx\")]"]' //@ is "$.index[?(@.name=='safe_assoc_fn')].inner.function.header.is_unsafe" false + //@ is "$.index[?(@.name=='safe_assoc_fn')].attrs[*].target_feature.enable" '["avx"]' #[target_feature(enable = "avx")] pub fn safe_assoc_fn() {} - //@ is "$.index[?(@.name=='unsafe_assoc_fn')].attrs" '["#[target_feature(enable=\"avx\")]"]' //@ is "$.index[?(@.name=='unsafe_assoc_fn')].inner.function.header.is_unsafe" true + //@ is "$.index[?(@.name=='unsafe_assoc_fn')].attrs[*].target_feature.enable" '["avx"]' #[target_feature(enable = "avx")] pub unsafe fn unsafe_assoc_fn() {} } diff --git a/tests/rustdoc-json/enums/discriminant/struct.rs b/tests/rustdoc-json/enums/discriminant/struct.rs index ea669e6a0b3..fed0e545798 100644 --- a/tests/rustdoc-json/enums/discriminant/struct.rs +++ b/tests/rustdoc-json/enums/discriminant/struct.rs @@ -1,5 +1,5 @@ #[repr(i32)] -//@ is "$.index[?(@.name=='Foo')].attrs" '["#[repr(i32)]"]' +//@ is "$.index[?(@.name=='Foo')].attrs[*].repr.int" '"i32"' pub enum Foo { //@ is "$.index[?(@.name=='Struct')].inner.variant.discriminant" null //@ count "$.index[?(@.name=='Struct')].inner.variant.kind.struct.fields[*]" 0 diff --git a/tests/rustdoc-json/enums/discriminant/tuple.rs b/tests/rustdoc-json/enums/discriminant/tuple.rs index 1b8e791eb23..54bba76a063 100644 --- a/tests/rustdoc-json/enums/discriminant/tuple.rs +++ b/tests/rustdoc-json/enums/discriminant/tuple.rs @@ -1,5 +1,5 @@ #[repr(u32)] -//@ is "$.index[?(@.name=='Foo')].attrs" '["#[repr(u32)]"]' +//@ is "$.index[?(@.name=='Foo')].attrs[*].repr.int" '"u32"' pub enum Foo { //@ is "$.index[?(@.name=='Tuple')].inner.variant.discriminant" null //@ count "$.index[?(@.name=='Tuple')].inner.variant.kind.tuple[*]" 0 diff --git a/tests/rustdoc-json/keyword_private.rs b/tests/rustdoc-json/keyword_private.rs index fea546c9fb6..3198fc2529e 100644 --- a/tests/rustdoc-json/keyword_private.rs +++ b/tests/rustdoc-json/keyword_private.rs @@ -5,7 +5,7 @@ //@ !has "$.index[?(@.name=='match')]" //@ has "$.index[?(@.name=='foo')]" -//@ is "$.index[?(@.name=='foo')].attrs" '["#[doc(keyword = \"match\")]"]' +//@ is "$.index[?(@.name=='foo')].attrs[*].other" '"#[doc(keyword = \"match\")]"' //@ is "$.index[?(@.name=='foo')].docs" '"this is a test!"' #[doc(keyword = "match")] /// this is a test! @@ -13,7 +13,7 @@ pub mod foo {} //@ !has "$.index[?(@.name=='break')]" //@ has "$.index[?(@.name=='bar')]" -//@ is "$.index[?(@.name=='bar')].attrs" '["#[doc(keyword = \"break\")]"]' +//@ is "$.index[?(@.name=='bar')].attrs[*].other" '"#[doc(keyword = \"break\")]"' //@ is "$.index[?(@.name=='bar')].docs" '"hello"' #[doc(keyword = "break")] /// hello diff --git a/tests/rustdoc-json/visibility/doc_hidden_documented.rs b/tests/rustdoc-json/visibility/doc_hidden_documented.rs index 6e9ef48680b..f05e4f9d92d 100644 --- a/tests/rustdoc-json/visibility/doc_hidden_documented.rs +++ b/tests/rustdoc-json/visibility/doc_hidden_documented.rs @@ -1,15 +1,15 @@ //@ compile-flags: --document-hidden-items #![no_std] -//@ is "$.index[?(@.name=='func')].attrs" '["#[doc(hidden)]"]' +//@ is "$.index[?(@.name=='func')].attrs" '[{"other": "#[doc(hidden)]"}]' #[doc(hidden)] pub fn func() {} -//@ is "$.index[?(@.name=='Unit')].attrs" '["#[doc(hidden)]"]' +//@ is "$.index[?(@.name=='Unit')].attrs" '[{"other": "#[doc(hidden)]"}]' #[doc(hidden)] pub struct Unit; -//@ is "$.index[?(@.name=='hidden')].attrs" '["#[doc(hidden)]"]' +//@ is "$.index[?(@.name=='hidden')].attrs" '[{"other": "#[doc(hidden)]"}]' #[doc(hidden)] pub mod hidden { //@ is "$.index[?(@.name=='Inner')].attrs" '[]' diff --git a/tests/ui/asm/naked-function-shim.rs b/tests/ui/asm/naked-function-shim.rs new file mode 100644 index 00000000000..4694d0cd963 --- /dev/null +++ b/tests/ui/asm/naked-function-shim.rs @@ -0,0 +1,31 @@ +// The indirect call will generate a shim that then calls the actual function. Test that +// this is handled correctly. See also https://github.com/rust-lang/rust/issues/143266. + +//@ build-pass +//@ add-core-stubs +//@ revisions: aarch64 x86_64 +//@ [aarch64] compile-flags: --target aarch64-unknown-none +//@ [aarch64] needs-llvm-components: aarch64 +//@ [x86_64] compile-flags: --target x86_64-unknown-none +//@ [x86_64] needs-llvm-components: x86 + +#![feature(no_core, lang_items)] +#![crate_type = "lib"] +#![no_core] + +extern crate minicore; +use minicore::*; + +trait MyTrait { + #[unsafe(naked)] + extern "C" fn foo(&self) { + naked_asm!("ret") + } +} + +impl MyTrait for i32 {} + +fn main() { + let x: extern "C" fn(&_) = <dyn MyTrait as MyTrait>::foo; + x(&1); +} diff --git a/tests/ui/asm/naked-invalid-attr.stderr b/tests/ui/asm/naked-invalid-attr.stderr index 915b54b3fc2..2571c8fa989 100644 --- a/tests/ui/asm/naked-invalid-attr.stderr +++ b/tests/ui/asm/naked-invalid-attr.stderr @@ -8,7 +8,7 @@ error[E0736]: attribute incompatible with `#[unsafe(naked)]` --> $DIR/naked-invalid-attr.rs:56:3 | LL | #[::a] - | ^^^ the `{{root}}::a` attribute is incompatible with `#[unsafe(naked)]` + | ^^^ the `::a` attribute is incompatible with `#[unsafe(naked)]` ... LL | #[unsafe(naked)] | ---------------- function marked with `#[unsafe(naked)]` here diff --git a/tests/ui/async-await/async-closures/def-path.stderr b/tests/ui/async-await/async-closures/def-path.stderr index b50e353b698..58a5b0b79c4 100644 --- a/tests/ui/async-await/async-closures/def-path.stderr +++ b/tests/ui/async-await/async-closures/def-path.stderr @@ -5,11 +5,11 @@ LL | let x = async || {}; | -- the expected `async` closure body LL | LL | let () = x(); - | ^^ --- this expression has type `{static main::{closure#0}::{closure#0}<?17t> upvar_tys=?16t resume_ty=ResumeTy yield_ty=() return_ty=() witness=?5t}` + | ^^ --- this expression has type `{static main::{closure#0}::{closure#0}<?16t> upvar_tys=?15t resume_ty=ResumeTy yield_ty=() return_ty=() witness={main::{closure#0}::{closure#0}}}` | | | expected `async` closure body, found `()` | - = note: expected `async` closure body `{static main::{closure#0}::{closure#0}<?17t> upvar_tys=?16t resume_ty=ResumeTy yield_ty=() return_ty=() witness=?5t}` + = note: expected `async` closure body `{static main::{closure#0}::{closure#0}<?16t> upvar_tys=?15t resume_ty=ResumeTy yield_ty=() return_ty=() witness={main::{closure#0}::{closure#0}}}` found unit type `()` error: aborting due to 1 previous error diff --git a/tests/ui/async-await/async-drop/foreign-fundamental.rs b/tests/ui/async-await/async-drop/foreign-fundamental.rs new file mode 100644 index 00000000000..1c192fccd9f --- /dev/null +++ b/tests/ui/async-await/async-drop/foreign-fundamental.rs @@ -0,0 +1,21 @@ +//@ edition: 2018 + +#![feature(async_drop)] +//~^ WARN the feature `async_drop` is incomplete + +use std::future::AsyncDrop; +use std::pin::Pin; + +struct Foo; + +impl AsyncDrop for &Foo { + //~^ ERROR the `AsyncDrop` trait may only be implemented for + async fn drop(self: Pin<&mut Self>) {} +} + +impl AsyncDrop for Pin<Foo> { + //~^ ERROR the `AsyncDrop` trait may only be implemented for + async fn drop(self: Pin<&mut Self>) {} +} + +fn main() {} diff --git a/tests/ui/async-await/async-drop/foreign-fundamental.stderr b/tests/ui/async-await/async-drop/foreign-fundamental.stderr new file mode 100644 index 00000000000..7b52329ac99 --- /dev/null +++ b/tests/ui/async-await/async-drop/foreign-fundamental.stderr @@ -0,0 +1,24 @@ +warning: the feature `async_drop` is incomplete and may not be safe to use and/or cause compiler crashes + --> $DIR/foreign-fundamental.rs:3:12 + | +LL | #![feature(async_drop)] + | ^^^^^^^^^^ + | + = note: see issue #126482 <https://github.com/rust-lang/rust/issues/126482> for more information + = note: `#[warn(incomplete_features)]` on by default + +error[E0120]: the `AsyncDrop` trait may only be implemented for local structs, enums, and unions + --> $DIR/foreign-fundamental.rs:11:20 + | +LL | impl AsyncDrop for &Foo { + | ^^^^ must be a struct, enum, or union in the current crate + +error[E0120]: the `AsyncDrop` trait may only be implemented for local structs, enums, and unions + --> $DIR/foreign-fundamental.rs:16:20 + | +LL | impl AsyncDrop for Pin<Foo> { + | ^^^^^^^^ must be a struct, enum, or union in the current crate + +error: aborting due to 2 previous errors; 1 warning emitted + +For more information about this error, try `rustc --explain E0120`. diff --git a/tests/ui/async-await/drop-tracking-unresolved-typeck-results.stderr b/tests/ui/async-await/drop-tracking-unresolved-typeck-results.no_assumptions.stderr index 0d3ee8a9377..d5560bf8920 100644 --- a/tests/ui/async-await/drop-tracking-unresolved-typeck-results.stderr +++ b/tests/ui/async-await/drop-tracking-unresolved-typeck-results.no_assumptions.stderr @@ -1,9 +1,7 @@ error: implementation of `FnOnce` is not general enough - --> $DIR/drop-tracking-unresolved-typeck-results.rs:98:5 + --> $DIR/drop-tracking-unresolved-typeck-results.rs:102:5 | LL | / send(async { -LL | | -LL | | LL | | Next(&Buffered(Map(Empty(PhantomData), ready::<&()>), FuturesOrdered(PhantomData), 0)).await LL | | }); | |______^ implementation of `FnOnce` is not general enough @@ -12,11 +10,9 @@ LL | | }); = note: ...but it actually implements `FnOnce<(&(),)>` error: implementation of `FnOnce` is not general enough - --> $DIR/drop-tracking-unresolved-typeck-results.rs:98:5 + --> $DIR/drop-tracking-unresolved-typeck-results.rs:102:5 | LL | / send(async { -LL | | -LL | | LL | | Next(&Buffered(Map(Empty(PhantomData), ready::<&()>), FuturesOrdered(PhantomData), 0)).await LL | | }); | |______^ implementation of `FnOnce` is not general enough diff --git a/tests/ui/async-await/drop-tracking-unresolved-typeck-results.rs b/tests/ui/async-await/drop-tracking-unresolved-typeck-results.rs index e6c295405e2..16f929331cb 100644 --- a/tests/ui/async-await/drop-tracking-unresolved-typeck-results.rs +++ b/tests/ui/async-await/drop-tracking-unresolved-typeck-results.rs @@ -1,5 +1,9 @@ //@ incremental //@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] check-pass +//@[no_assumptions] known-bug: #110338 use std::future::*; use std::marker::PhantomData; @@ -96,8 +100,6 @@ impl<St: ?Sized + Stream + Unpin> Future for Next<'_, St> { fn main() { send(async { - //~^ ERROR implementation of `FnOnce` is not general enough - //~| ERROR implementation of `FnOnce` is not general enough Next(&Buffered(Map(Empty(PhantomData), ready::<&()>), FuturesOrdered(PhantomData), 0)).await }); } diff --git a/tests/ui/async-await/higher-ranked-auto-trait-1.no_assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-1.no_assumptions.stderr new file mode 100644 index 00000000000..b298a3bf215 --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-1.no_assumptions.stderr @@ -0,0 +1,38 @@ +error[E0308]: mismatched types + --> $DIR/higher-ranked-auto-trait-1.rs:37:5 + | +LL | / async { +LL | | let _y = &(); +LL | | let _x = filter(FilterMap { +LL | | f: || async move { *_y }, +... | +LL | | drop(_x); +LL | | } + | |_____^ one type is more general than the other + | + = note: expected `async` block `{async block@$DIR/higher-ranked-auto-trait-1.rs:40:19: 40:29}` + found `async` block `{async block@$DIR/higher-ranked-auto-trait-1.rs:40:19: 40:29}` + = note: no two async blocks, even if identical, have the same type + = help: consider pinning your async block and casting it to a trait object + +error[E0308]: mismatched types + --> $DIR/higher-ranked-auto-trait-1.rs:37:5 + | +LL | / async { +LL | | let _y = &(); +LL | | let _x = filter(FilterMap { +LL | | f: || async move { *_y }, +... | +LL | | drop(_x); +LL | | } + | |_____^ one type is more general than the other + | + = note: expected `async` block `{async block@$DIR/higher-ranked-auto-trait-1.rs:40:19: 40:29}` + found `async` block `{async block@$DIR/higher-ranked-auto-trait-1.rs:40:19: 40:29}` + = note: no two async blocks, even if identical, have the same type + = help: consider pinning your async block and casting it to a trait object + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/async-await/higher-ranked-auto-trait-1.rs b/tests/ui/async-await/higher-ranked-auto-trait-1.rs new file mode 100644 index 00000000000..740f7e29245 --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-1.rs @@ -0,0 +1,48 @@ +// Repro for <https://github.com/rust-lang/rust/issues/79648#issuecomment-749127947>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] check-pass +//@[no_assumptions] known-bug: #110338 + +use std::future::Future; +use std::marker::PhantomData; + +trait Stream { + type Item; +} + +struct Filter<St: Stream> { + pending_item: St::Item, +} + +fn filter<St: Stream>(_: St) -> Filter<St> { + unimplemented!(); +} + +struct FilterMap<Fut, F> { + f: F, + pending: PhantomData<Fut>, +} + +impl<Fut, F> Stream for FilterMap<Fut, F> +where + F: FnMut() -> Fut, + Fut: Future, +{ + type Item = (); +} + +pub fn get_foo() -> impl Future + Send { + async { + let _y = &(); + let _x = filter(FilterMap { + f: || async move { *_y }, + pending: PhantomData, + }); + async {}.await; + drop(_x); + } +} + +fn main() {} diff --git a/tests/ui/async-await/higher-ranked-auto-trait-10.assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-10.assumptions.stderr new file mode 100644 index 00000000000..6fcf1b1eac1 --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-10.assumptions.stderr @@ -0,0 +1,21 @@ +error: implementation of `Foo` is not general enough + --> $DIR/higher-ranked-auto-trait-10.rs:32:5 + | +LL | Box::new(async move { get_foo(x).await }) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `Foo` is not general enough + | + = note: `Foo<'1>` would have to be implemented for the type `&'0 str`, for any two lifetimes `'0` and `'1`... + = note: ...but `Foo<'2>` is actually implemented for the type `&'2 str`, for some specific lifetime `'2` + +error: implementation of `Foo` is not general enough + --> $DIR/higher-ranked-auto-trait-10.rs:32:5 + | +LL | Box::new(async move { get_foo(x).await }) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `Foo` is not general enough + | + = note: `Foo<'1>` would have to be implemented for the type `&'0 str`, for any two lifetimes `'0` and `'1`... + = note: ...but `Foo<'2>` is actually implemented for the type `&'2 str`, for some specific lifetime `'2` + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: aborting due to 2 previous errors + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-10.no_assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-10.no_assumptions.stderr new file mode 100644 index 00000000000..6fcf1b1eac1 --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-10.no_assumptions.stderr @@ -0,0 +1,21 @@ +error: implementation of `Foo` is not general enough + --> $DIR/higher-ranked-auto-trait-10.rs:32:5 + | +LL | Box::new(async move { get_foo(x).await }) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `Foo` is not general enough + | + = note: `Foo<'1>` would have to be implemented for the type `&'0 str`, for any two lifetimes `'0` and `'1`... + = note: ...but `Foo<'2>` is actually implemented for the type `&'2 str`, for some specific lifetime `'2` + +error: implementation of `Foo` is not general enough + --> $DIR/higher-ranked-auto-trait-10.rs:32:5 + | +LL | Box::new(async move { get_foo(x).await }) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `Foo` is not general enough + | + = note: `Foo<'1>` would have to be implemented for the type `&'0 str`, for any two lifetimes `'0` and `'1`... + = note: ...but `Foo<'2>` is actually implemented for the type `&'2 str`, for some specific lifetime `'2` + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: aborting due to 2 previous errors + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-10.rs b/tests/ui/async-await/higher-ranked-auto-trait-10.rs new file mode 100644 index 00000000000..4bfa27961ab --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-10.rs @@ -0,0 +1,35 @@ +// Repro for <https://github.com/rust-lang/rust/issues/92415#issue-1090723521>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] known-bug: unknown +//@[no_assumptions] known-bug: #110338 + +use std::any::Any; +use std::future::Future; + +trait Foo<'a>: Sized { + type Error; + fn foo(x: &'a str) -> Result<Self, Self::Error>; +} + +impl<'a> Foo<'a> for &'a str { + type Error = (); + + fn foo(x: &'a str) -> Result<Self, Self::Error> { + Ok(x) + } +} + +async fn get_foo<'a, T>(x: &'a str) -> Result<T, <T as Foo<'a>>::Error> +where + T: Foo<'a>, +{ + Foo::foo(x) +} + +fn bar<'a>(x: &'a str) -> Box<dyn Future<Output = Result<&'a str, ()>> + Send + 'a> { + Box::new(async move { get_foo(x).await }) +} + +fn main() {} diff --git a/tests/ui/async-await/higher-ranked-auto-trait-11.assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-11.assumptions.stderr new file mode 100644 index 00000000000..d39843f628c --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-11.assumptions.stderr @@ -0,0 +1,20 @@ +error: lifetime may not live long enough + --> $DIR/higher-ranked-auto-trait-11.rs:27:9 + | +LL | impl<'a, T> Foo<'a> for MyType<T> + | -- lifetime `'a` defined here +... +LL | Box::pin(async move { <T as Foo<'a>>::foo().await }) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ coercion requires that `'a` must outlive `'static` + +error: implementation of `Send` is not general enough + --> $DIR/higher-ranked-auto-trait-11.rs:27:9 + | +LL | Box::pin(async move { <T as Foo<'a>>::foo().await }) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `Send` is not general enough + | + = note: `Send` would have to be implemented for the type `<T as Foo<'0>>::Future`, for any lifetime `'0`... + = note: ...but `Send` is actually implemented for the type `<T as Foo<'1>>::Future`, for some specific lifetime `'1` + +error: aborting due to 2 previous errors + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-11.no_assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-11.no_assumptions.stderr new file mode 100644 index 00000000000..d39843f628c --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-11.no_assumptions.stderr @@ -0,0 +1,20 @@ +error: lifetime may not live long enough + --> $DIR/higher-ranked-auto-trait-11.rs:27:9 + | +LL | impl<'a, T> Foo<'a> for MyType<T> + | -- lifetime `'a` defined here +... +LL | Box::pin(async move { <T as Foo<'a>>::foo().await }) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ coercion requires that `'a` must outlive `'static` + +error: implementation of `Send` is not general enough + --> $DIR/higher-ranked-auto-trait-11.rs:27:9 + | +LL | Box::pin(async move { <T as Foo<'a>>::foo().await }) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `Send` is not general enough + | + = note: `Send` would have to be implemented for the type `<T as Foo<'0>>::Future`, for any lifetime `'0`... + = note: ...but `Send` is actually implemented for the type `<T as Foo<'1>>::Future`, for some specific lifetime `'1` + +error: aborting due to 2 previous errors + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-11.rs b/tests/ui/async-await/higher-ranked-auto-trait-11.rs new file mode 100644 index 00000000000..3aebdd8224d --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-11.rs @@ -0,0 +1,31 @@ +// Repro for <https://github.com/rust-lang/rust/issues/60658#issuecomment-1509321859>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] known-bug: unknown +//@[no_assumptions] known-bug: #110338 + +use core::pin::Pin; +use std::future::Future; + +pub trait Foo<'a> { + type Future: Future<Output = ()>; + + fn foo() -> Self::Future; +} + +struct MyType<T>(T); + +impl<'a, T> Foo<'a> for MyType<T> +where + T: Foo<'a>, + T::Future: Send, +{ + type Future = Pin<Box<dyn Future<Output = ()> + Send + 'a>>; + + fn foo() -> Self::Future { + Box::pin(async move { <T as Foo<'a>>::foo().await }) + } +} + +fn main() {} diff --git a/tests/ui/async-await/higher-ranked-auto-trait-12.no_assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-12.no_assumptions.stderr new file mode 100644 index 00000000000..63e71cbc40c --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-12.no_assumptions.stderr @@ -0,0 +1,18 @@ +error: implementation of `Robot` is not general enough + --> $DIR/higher-ranked-auto-trait-12.rs:31:20 + | +LL | let _my_task = this_is_send(async move { + | ____________________^ +LL | | let _my_iter = IRobot { +LL | | id: 32, +LL | | robot: source, +LL | | }; +LL | | yield_now().await; +LL | | }); + | |______^ implementation of `Robot` is not general enough + | + = note: `Box<(dyn Robot<Id = u32> + Send + '0)>` must implement `Robot`, for any lifetime `'0`... + = note: ...but `Robot` is actually implemented for the type `Box<(dyn Robot<Id = u32> + Send + 'static)>` + +error: aborting due to 1 previous error + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-12.rs b/tests/ui/async-await/higher-ranked-auto-trait-12.rs new file mode 100644 index 00000000000..b1cca5cbb00 --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-12.rs @@ -0,0 +1,40 @@ +// Repro for <https://github.com/rust-lang/rust/issues/71671#issuecomment-848994782>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] check-pass +//@[no_assumptions] known-bug: #110338 + +pub trait Robot { + type Id; +} + +pub type DynRobot = Box<dyn Robot<Id = u32> + Send>; + +impl Robot for DynRobot { + type Id = u32; +} + +struct IRobot<R: Robot> { + id: R::Id, + robot: R, +} + +// stand-in for tokio::spawn +fn this_is_send<T: Send>(value: T) -> T { + value +} + +async fn yield_now() {} + +fn test(source: DynRobot) { + let _my_task = this_is_send(async move { + let _my_iter = IRobot { + id: 32, + robot: source, + }; + yield_now().await; + }); +} + +fn main() {} diff --git a/tests/ui/async-await/higher-ranked-auto-trait-13.assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-13.assumptions.stderr new file mode 100644 index 00000000000..f69218740dc --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-13.assumptions.stderr @@ -0,0 +1,41 @@ +error: implementation of `Getter` is not general enough + --> $DIR/higher-ranked-auto-trait-13.rs:65:5 + | +LL | assert_send(my_send_async_method(struct_with_lifetime, data)); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `Getter` is not general enough + | + = note: `Getter<'1>` would have to be implemented for the type `GetterImpl<'0, ConstructableImpl<'_>>`, for any two lifetimes `'0` and `'1`... + = note: ...but `Getter<'2>` is actually implemented for the type `GetterImpl<'2, ConstructableImpl<'_>>`, for some specific lifetime `'2` + +error: implementation of `Getter` is not general enough + --> $DIR/higher-ranked-auto-trait-13.rs:65:5 + | +LL | assert_send(my_send_async_method(struct_with_lifetime, data)); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `Getter` is not general enough + | + = note: `Getter<'1>` would have to be implemented for the type `GetterImpl<'0, ConstructableImpl<'_>>`, for any two lifetimes `'0` and `'1`... + = note: ...but `Getter<'2>` is actually implemented for the type `GetterImpl<'2, ConstructableImpl<'_>>`, for some specific lifetime `'2` + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: implementation of `Getter` is not general enough + --> $DIR/higher-ranked-auto-trait-13.rs:65:5 + | +LL | assert_send(my_send_async_method(struct_with_lifetime, data)); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `Getter` is not general enough + | + = note: `Getter<'1>` would have to be implemented for the type `GetterImpl<'0, ConstructableImpl<'_>>`, for any two lifetimes `'0` and `'1`... + = note: ...but `Getter<'2>` is actually implemented for the type `GetterImpl<'2, ConstructableImpl<'_>>`, for some specific lifetime `'2` + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: implementation of `Getter` is not general enough + --> $DIR/higher-ranked-auto-trait-13.rs:65:5 + | +LL | assert_send(my_send_async_method(struct_with_lifetime, data)); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `Getter` is not general enough + | + = note: `Getter<'1>` would have to be implemented for the type `GetterImpl<'0, ConstructableImpl<'_>>`, for any two lifetimes `'0` and `'1`... + = note: ...but `Getter<'2>` is actually implemented for the type `GetterImpl<'2, ConstructableImpl<'_>>`, for some specific lifetime `'2` + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: aborting due to 4 previous errors + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-13.no_assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-13.no_assumptions.stderr new file mode 100644 index 00000000000..cfbdaa8ad4b --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-13.no_assumptions.stderr @@ -0,0 +1,60 @@ +error: implementation of `Getter` is not general enough + --> $DIR/higher-ranked-auto-trait-13.rs:65:5 + | +LL | assert_send(my_send_async_method(struct_with_lifetime, data)); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `Getter` is not general enough + | + = note: `Getter<'1>` would have to be implemented for the type `GetterImpl<'0, ConstructableImpl<'_>>`, for any two lifetimes `'0` and `'1`... + = note: ...but `Getter<'2>` is actually implemented for the type `GetterImpl<'2, ConstructableImpl<'_>>`, for some specific lifetime `'2` + +error: implementation of `Getter` is not general enough + --> $DIR/higher-ranked-auto-trait-13.rs:65:5 + | +LL | assert_send(my_send_async_method(struct_with_lifetime, data)); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `Getter` is not general enough + | + = note: `Getter<'1>` would have to be implemented for the type `GetterImpl<'0, ConstructableImpl<'_>>`, for any two lifetimes `'0` and `'1`... + = note: ...but `Getter<'2>` is actually implemented for the type `GetterImpl<'2, ConstructableImpl<'_>>`, for some specific lifetime `'2` + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: implementation of `Callable` is not general enough + --> $DIR/higher-ranked-auto-trait-13.rs:65:5 + | +LL | assert_send(my_send_async_method(struct_with_lifetime, data)); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `Callable` is not general enough + | + = note: `Callable<'_>` would have to be implemented for the type `ConstructableImpl<'0>`, for any lifetime `'0`... + = note: ...but `Callable<'1>` is actually implemented for the type `ConstructableImpl<'1>`, for some specific lifetime `'1` + +error: implementation of `Getter` is not general enough + --> $DIR/higher-ranked-auto-trait-13.rs:65:5 + | +LL | assert_send(my_send_async_method(struct_with_lifetime, data)); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `Getter` is not general enough + | + = note: `Getter<'1>` would have to be implemented for the type `GetterImpl<'0, ConstructableImpl<'_>>`, for any two lifetimes `'0` and `'1`... + = note: ...but `Getter<'2>` is actually implemented for the type `GetterImpl<'2, ConstructableImpl<'_>>`, for some specific lifetime `'2` + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: implementation of `Getter` is not general enough + --> $DIR/higher-ranked-auto-trait-13.rs:65:5 + | +LL | assert_send(my_send_async_method(struct_with_lifetime, data)); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `Getter` is not general enough + | + = note: `Getter<'1>` would have to be implemented for the type `GetterImpl<'0, ConstructableImpl<'_>>`, for any two lifetimes `'0` and `'1`... + = note: ...but `Getter<'2>` is actually implemented for the type `GetterImpl<'2, ConstructableImpl<'_>>`, for some specific lifetime `'2` + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: implementation of `Callable` is not general enough + --> $DIR/higher-ranked-auto-trait-13.rs:65:5 + | +LL | assert_send(my_send_async_method(struct_with_lifetime, data)); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ implementation of `Callable` is not general enough + | + = note: `Callable<'_>` would have to be implemented for the type `ConstructableImpl<'0>`, for any lifetime `'0`... + = note: ...but `Callable<'1>` is actually implemented for the type `ConstructableImpl<'1>`, for some specific lifetime `'1` + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: aborting due to 6 previous errors + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-13.rs b/tests/ui/async-await/higher-ranked-auto-trait-13.rs new file mode 100644 index 00000000000..4bce0f5197f --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-13.rs @@ -0,0 +1,68 @@ +// Repro for <https://github.com/rust-lang/rust/issues/114046#issue-1819720359>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] known-bug: unknown +//@[no_assumptions] known-bug: #110338 + +use std::marker::PhantomData; + +trait Callable<'a>: Send + Sync { + fn callable(data: &'a [u8]); +} + +trait Getter<'a>: Send + Sync { + type ItemSize: Send + Sync; + + fn get(data: &'a [u8]); +} + +struct List<'a, A: Getter<'a>> { + data: &'a [u8], + item_size: A::ItemSize, // Removing this member causes the code to compile + phantom: PhantomData<A>, +} + +struct GetterImpl<'a, T: Callable<'a> + 'a> { + p: PhantomData<&'a T>, +} + +impl<'a, T: Callable<'a> + 'a> Getter<'a> for GetterImpl<'a, T> { + type ItemSize = (); + + fn get(data: &'a [u8]) { + <T>::callable(data); + } +} + +struct ConstructableImpl<'a> { + _data: &'a [u8], +} + +impl<'a> Callable<'a> for ConstructableImpl<'a> { + fn callable(_: &'a [u8]) {} +} + +struct StructWithLifetime<'a> { + marker: &'a PhantomData<u8>, +} + +async fn async_method() {} + +fn assert_send(_: impl Send + Sync) {} + +// This async method ought to be send, but is not +async fn my_send_async_method(_struct_with_lifetime: &mut StructWithLifetime<'_>, data: &Vec<u8>) { + let _named = + List::<'_, GetterImpl<ConstructableImpl<'_>>> { data, item_size: (), phantom: PhantomData }; + // Moving the await point above the constructed of _named, causes + // the method to become send, even though _named is Send + Sync + async_method().await; + assert_send(_named); +} + +fn dummy(struct_with_lifetime: &mut StructWithLifetime<'_>, data: &Vec<u8>) { + assert_send(my_send_async_method(struct_with_lifetime, data)); +} + +fn main() {} diff --git a/tests/ui/async-await/higher-ranked-auto-trait-14.no_assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-14.no_assumptions.stderr new file mode 100644 index 00000000000..b47db2b19ff --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-14.no_assumptions.stderr @@ -0,0 +1,33 @@ +error: implementation of `FnOnce` is not general enough + --> $DIR/higher-ranked-auto-trait-14.rs:20:5 + | +LL | / async move { +LL | | let xs = unique_x.union(&cached) +LL | | // .copied() // works +LL | | .map(|x| *x) // error +LL | | ; +LL | | let blah = val.blah(xs.into_iter()).await; +LL | | } + | |_____^ implementation of `FnOnce` is not general enough + | + = note: closure with signature `fn(&'0 u32) -> u32` must implement `FnOnce<(&'1 u32,)>`, for any two lifetimes `'0` and `'1`... + = note: ...but it actually implements `FnOnce<(&u32,)>` + +error: implementation of `FnOnce` is not general enough + --> $DIR/higher-ranked-auto-trait-14.rs:20:5 + | +LL | / async move { +LL | | let xs = unique_x.union(&cached) +LL | | // .copied() // works +LL | | .map(|x| *x) // error +LL | | ; +LL | | let blah = val.blah(xs.into_iter()).await; +LL | | } + | |_____^ implementation of `FnOnce` is not general enough + | + = note: closure with signature `fn(&'0 u32) -> u32` must implement `FnOnce<(&'1 u32,)>`, for any two lifetimes `'0` and `'1`... + = note: ...but it actually implements `FnOnce<(&u32,)>` + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: aborting due to 2 previous errors + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-14.rs b/tests/ui/async-await/higher-ranked-auto-trait-14.rs new file mode 100644 index 00000000000..5ed12cd6e38 --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-14.rs @@ -0,0 +1,29 @@ +// Repro for <https://github.com/rust-lang/rust/issues/124757#issue-2279603232>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] check-pass +//@[no_assumptions] known-bug: #110338 + +use std::collections::HashSet; +use std::future::Future; + +trait MyTrait { + fn blah(&self, x: impl Iterator<Item = u32>) -> impl Future<Output = ()> + Send; +} + +fn foo<T: MyTrait + Send + Sync>( + val: T, + unique_x: HashSet<u32>, +) -> impl Future<Output = ()> + Send { + let cached = HashSet::new(); + async move { + let xs = unique_x.union(&cached) + // .copied() // works + .map(|x| *x) // error + ; + let blah = val.blah(xs.into_iter()).await; + } +} + +fn main() {} diff --git a/tests/ui/async-await/higher-ranked-auto-trait-15.no_assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-15.no_assumptions.stderr new file mode 100644 index 00000000000..b4f3570d9f2 --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-15.no_assumptions.stderr @@ -0,0 +1,21 @@ +error: implementation of `FnOnce` is not general enough + --> $DIR/higher-ranked-auto-trait-15.rs:20:5 + | +LL | require_send(future); + | ^^^^^^^^^^^^^^^^^^^^ implementation of `FnOnce` is not general enough + | + = note: closure with signature `fn(&'0 Vec<i32>) -> std::slice::Iter<'_, i32>` must implement `FnOnce<(&'1 Vec<i32>,)>`, for any two lifetimes `'0` and `'1`... + = note: ...but it actually implements `FnOnce<(&Vec<i32>,)>` + +error: implementation of `FnOnce` is not general enough + --> $DIR/higher-ranked-auto-trait-15.rs:20:5 + | +LL | require_send(future); + | ^^^^^^^^^^^^^^^^^^^^ implementation of `FnOnce` is not general enough + | + = note: closure with signature `fn(&'0 Vec<i32>) -> std::slice::Iter<'_, i32>` must implement `FnOnce<(&'1 Vec<i32>,)>`, for any two lifetimes `'0` and `'1`... + = note: ...but it actually implements `FnOnce<(&Vec<i32>,)>` + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: aborting due to 2 previous errors + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-15.rs b/tests/ui/async-await/higher-ranked-auto-trait-15.rs new file mode 100644 index 00000000000..153fcac4c3a --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-15.rs @@ -0,0 +1,21 @@ +// Repro for <https://github.com/rust-lang/rust/issues/126044#issuecomment-2154313449>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] check-pass +//@[no_assumptions] known-bug: #110338 + +async fn listen() { + let things: Vec<Vec<i32>> = vec![]; + for _ in things.iter().map(|n| n.iter()).flatten() { + // comment this line and everything compiles + async {}.await; + } +} + +fn require_send<T: Send>(_x: T) {} + +fn main() { + let future = listen(); + require_send(future); +} diff --git a/tests/ui/async-await/higher-ranked-auto-trait-16.assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-16.assumptions.stderr new file mode 100644 index 00000000000..412c31b1bd8 --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-16.assumptions.stderr @@ -0,0 +1,25 @@ +error: implementation of `AsyncFnOnce` is not general enough + --> $DIR/higher-ranked-auto-trait-16.rs:18:5 + | +LL | / assert_send(async { +LL | | commit_if_ok(&mut ctxt, async |_| todo!()).await; +LL | | }); + | |______^ implementation of `AsyncFnOnce` is not general enough + | + = note: `{async closure@$DIR/higher-ranked-auto-trait-16.rs:19:33: 19:42}` must implement `AsyncFnOnce<(&mut Ctxt<'1>,)>`, for any two lifetimes `'0` and `'1`... + = note: ...but it actually implements `AsyncFnOnce<(&mut Ctxt<'_>,)>` + +error: implementation of `AsyncFnOnce` is not general enough + --> $DIR/higher-ranked-auto-trait-16.rs:18:5 + | +LL | / assert_send(async { +LL | | commit_if_ok(&mut ctxt, async |_| todo!()).await; +LL | | }); + | |______^ implementation of `AsyncFnOnce` is not general enough + | + = note: `{async closure@$DIR/higher-ranked-auto-trait-16.rs:19:33: 19:42}` must implement `AsyncFnOnce<(&mut Ctxt<'1>,)>`, for any two lifetimes `'0` and `'1`... + = note: ...but it actually implements `AsyncFnOnce<(&mut Ctxt<'_>,)>` + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: aborting due to 2 previous errors + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-16.no_assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-16.no_assumptions.stderr new file mode 100644 index 00000000000..412c31b1bd8 --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-16.no_assumptions.stderr @@ -0,0 +1,25 @@ +error: implementation of `AsyncFnOnce` is not general enough + --> $DIR/higher-ranked-auto-trait-16.rs:18:5 + | +LL | / assert_send(async { +LL | | commit_if_ok(&mut ctxt, async |_| todo!()).await; +LL | | }); + | |______^ implementation of `AsyncFnOnce` is not general enough + | + = note: `{async closure@$DIR/higher-ranked-auto-trait-16.rs:19:33: 19:42}` must implement `AsyncFnOnce<(&mut Ctxt<'1>,)>`, for any two lifetimes `'0` and `'1`... + = note: ...but it actually implements `AsyncFnOnce<(&mut Ctxt<'_>,)>` + +error: implementation of `AsyncFnOnce` is not general enough + --> $DIR/higher-ranked-auto-trait-16.rs:18:5 + | +LL | / assert_send(async { +LL | | commit_if_ok(&mut ctxt, async |_| todo!()).await; +LL | | }); + | |______^ implementation of `AsyncFnOnce` is not general enough + | + = note: `{async closure@$DIR/higher-ranked-auto-trait-16.rs:19:33: 19:42}` must implement `AsyncFnOnce<(&mut Ctxt<'1>,)>`, for any two lifetimes `'0` and `'1`... + = note: ...but it actually implements `AsyncFnOnce<(&mut Ctxt<'_>,)>` + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: aborting due to 2 previous errors + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-16.rs b/tests/ui/async-await/higher-ranked-auto-trait-16.rs new file mode 100644 index 00000000000..2b206f0a4c5 --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-16.rs @@ -0,0 +1,23 @@ +// Repro for <https://github.com/rust-lang/rust/issues/126350#issue-2349492101>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] known-bug: unknown +//@[no_assumptions] known-bug: #110338 + +fn assert_send<T: Send>(_: T) {} + +#[derive(Clone)] +struct Ctxt<'a>(&'a ()); + +async fn commit_if_ok<'a>(ctxt: &mut Ctxt<'a>, f: impl AsyncFnOnce(&mut Ctxt<'a>)) { + f(&mut ctxt.clone()).await; +} + +fn operation(mut ctxt: Ctxt<'_>) { + assert_send(async { + commit_if_ok(&mut ctxt, async |_| todo!()).await; + }); +} + +fn main() {} diff --git a/tests/ui/async-await/higher-ranked-auto-trait-17.no_assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-17.no_assumptions.stderr new file mode 100644 index 00000000000..152900ca1ae --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-17.no_assumptions.stderr @@ -0,0 +1,29 @@ +error: implementation of `FnOnce` is not general enough + --> $DIR/higher-ranked-auto-trait-17.rs:12:5 + | +LL | / async move { +LL | | let iter = Adaptor::new(a.iter().map(|_: &()| {})); +LL | | std::future::pending::<()>().await; +LL | | drop(iter); +LL | | } + | |_____^ implementation of `FnOnce` is not general enough + | + = note: closure with signature `fn(&'0 ())` must implement `FnOnce<(&'1 (),)>`, for any two lifetimes `'0` and `'1`... + = note: ...but it actually implements `FnOnce<(&(),)>` + +error: implementation of `FnOnce` is not general enough + --> $DIR/higher-ranked-auto-trait-17.rs:12:5 + | +LL | / async move { +LL | | let iter = Adaptor::new(a.iter().map(|_: &()| {})); +LL | | std::future::pending::<()>().await; +LL | | drop(iter); +LL | | } + | |_____^ implementation of `FnOnce` is not general enough + | + = note: closure with signature `fn(&'0 ())` must implement `FnOnce<(&'1 (),)>`, for any two lifetimes `'0` and `'1`... + = note: ...but it actually implements `FnOnce<(&(),)>` + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: aborting due to 2 previous errors + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-17.rs b/tests/ui/async-await/higher-ranked-auto-trait-17.rs new file mode 100644 index 00000000000..152432466c0 --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-17.rs @@ -0,0 +1,30 @@ +// Repro for <https://github.com/rust-lang/rust/issues/114177#issue-1826550174>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] check-pass +//@[no_assumptions] known-bug: #110338 + +// Using `impl Future` instead of `async to ensure that the Future is Send. +// +// In the original code `a` would be `&[T]`. For more minimization I've removed the reference. +fn foo(a: [(); 0]) -> impl std::future::Future<Output = ()> + Send { + async move { + let iter = Adaptor::new(a.iter().map(|_: &()| {})); + std::future::pending::<()>().await; + drop(iter); + } +} + +struct Adaptor<T: Iterator> { + iter: T, + v: T::Item, +} + +impl<T: Iterator> Adaptor<T> { + pub fn new(_: T) -> Self { + Self { iter: todo!(), v: todo!() } + } +} + +fn main() {} diff --git a/tests/ui/async-await/higher-ranked-auto-trait-2.no_assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-2.no_assumptions.stderr new file mode 100644 index 00000000000..2fc44412b9d --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-2.no_assumptions.stderr @@ -0,0 +1,49 @@ +error: lifetime bound not satisfied + --> $DIR/higher-ranked-auto-trait-2.rs:16:9 + | +LL | / async move { +LL | | // asks for an unspecified lifetime to outlive itself? weird diagnostics +LL | | self.run(t).await; +LL | | } + | |_________^ + | + = note: this is a known limitation that will be removed in the future (see issue #100013 <https://github.com/rust-lang/rust/issues/100013> for more information) + +error: lifetime bound not satisfied + --> $DIR/higher-ranked-auto-trait-2.rs:16:9 + | +LL | / async move { +LL | | // asks for an unspecified lifetime to outlive itself? weird diagnostics +LL | | self.run(t).await; +LL | | } + | |_________^ + | + = note: this is a known limitation that will be removed in the future (see issue #100013 <https://github.com/rust-lang/rust/issues/100013> for more information) + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: lifetime bound not satisfied + --> $DIR/higher-ranked-auto-trait-2.rs:16:9 + | +LL | / async move { +LL | | // asks for an unspecified lifetime to outlive itself? weird diagnostics +LL | | self.run(t).await; +LL | | } + | |_________^ + | + = note: this is a known limitation that will be removed in the future (see issue #100013 <https://github.com/rust-lang/rust/issues/100013> for more information) + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: lifetime bound not satisfied + --> $DIR/higher-ranked-auto-trait-2.rs:16:9 + | +LL | / async move { +LL | | // asks for an unspecified lifetime to outlive itself? weird diagnostics +LL | | self.run(t).await; +LL | | } + | |_________^ + | + = note: this is a known limitation that will be removed in the future (see issue #100013 <https://github.com/rust-lang/rust/issues/100013> for more information) + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: aborting due to 4 previous errors + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-2.rs b/tests/ui/async-await/higher-ranked-auto-trait-2.rs new file mode 100644 index 00000000000..6c75597265b --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-2.rs @@ -0,0 +1,23 @@ +// Repro for <https://github.com/rust-lang/rust/issues/111105#issue-1692860759>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] check-pass +//@[no_assumptions] known-bug: #110338 + +use std::future::Future; + +pub trait Foo: Sync { + fn run<'a, 'b: 'a, T: Sync>(&'a self, _: &'b T) -> impl Future<Output = ()> + 'a + Send; +} + +pub trait FooExt: Foo { + fn run_via<'a, 'b: 'a, T: Sync>(&'a self, t: &'b T) -> impl Future<Output = ()> + 'a + Send { + async move { + // asks for an unspecified lifetime to outlive itself? weird diagnostics + self.run(t).await; + } + } +} + +fn main() {} diff --git a/tests/ui/async-await/higher-ranked-auto-trait-3.no_assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-3.no_assumptions.stderr new file mode 100644 index 00000000000..c5c98ac807e --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-3.no_assumptions.stderr @@ -0,0 +1,12 @@ +error: lifetime bound not satisfied + --> $DIR/higher-ranked-auto-trait-3.rs:66:9 + | +LL | / async { +LL | | self.fi_2.get_iter(cx).await; +LL | | } + | |_________^ + | + = note: this is a known limitation that will be removed in the future (see issue #100013 <https://github.com/rust-lang/rust/issues/100013> for more information) + +error: aborting due to 1 previous error + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-3.rs b/tests/ui/async-await/higher-ranked-auto-trait-3.rs new file mode 100644 index 00000000000..d42d4236680 --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-3.rs @@ -0,0 +1,72 @@ +// Repro for <https://github.com/rust-lang/rust/issues/100013#issue-1323807923>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] check-pass +//@[no_assumptions] known-bug: #110338 + +#![feature(impl_trait_in_assoc_type)] + +use std::future::Future; + +pub trait FutureIterator: 'static { + type Iterator; + + type Future<'s, 'cx>: Future<Output = Self::Iterator> + Send + 'cx + where + 's: 'cx; + + fn get_iter<'s, 'cx>(&'s self, info: &'cx ()) -> Self::Future<'s, 'cx>; +} + +trait IterCaller: 'static { + type Future1<'cx>: Future<Output = ()> + Send + 'cx; + type Future2<'cx>: Future<Output = ()> + Send + 'cx; + + fn call_1<'s, 'cx>(&'s self, cx: &'cx ()) -> Self::Future1<'cx> + where + 's: 'cx; + fn call_2<'s, 'cx>(&'s self, cx: &'cx ()) -> Self::Future2<'cx> + where + 's: 'cx; +} + +struct UseIter<FI1, FI2> { + fi_1: FI1, + fi_2: FI2, +} + +impl<FI1, FI2> IterCaller for UseIter<FI1, FI2> +where + FI1: FutureIterator + 'static + Send + Sync, + for<'s, 'cx> FI1::Future<'s, 'cx>: Send, + FI2: FutureIterator + 'static + Send + Sync, +{ + type Future1<'cx> = impl Future<Output = ()> + Send + 'cx + where + Self: 'cx; + + type Future2<'cx> = impl Future<Output = ()> + Send + 'cx + where + Self: 'cx; + + fn call_1<'s, 'cx>(&'s self, cx: &'cx ()) -> Self::Future1<'cx> + where + 's: 'cx, + { + async { + self.fi_1.get_iter(cx).await; + } + } + + fn call_2<'s, 'cx>(&'s self, cx: &'cx ()) -> Self::Future2<'cx> + where + 's: 'cx, + { + async { + self.fi_2.get_iter(cx).await; + } + } +} + +fn main() {} diff --git a/tests/ui/async-await/higher-ranked-auto-trait-4.no_assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-4.no_assumptions.stderr new file mode 100644 index 00000000000..5aa5b83655a --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-4.no_assumptions.stderr @@ -0,0 +1,10 @@ +error: higher-ranked lifetime error + --> $DIR/higher-ranked-auto-trait-4.rs:29:5 + | +LL | / async { +LL | | let _ = evil_function::<dyn BoringTrait, _>().await; +LL | | } + | |_____^ + +error: aborting due to 1 previous error + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-4.rs b/tests/ui/async-await/higher-ranked-auto-trait-4.rs new file mode 100644 index 00000000000..0586af41e9e --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-4.rs @@ -0,0 +1,34 @@ +// Repro for <https://github.com/rust-lang/rust/issues/102211#issuecomment-2891975128>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] check-pass +//@[no_assumptions] known-bug: #110338 + +use std::future::Future; + +trait BoringTrait {} + +trait TraitWithAssocType<I> { + type Assoc; +} + +impl<T> TraitWithAssocType<()> for T +where + T: ?Sized + 'static, +{ + type Assoc = (); +} + +fn evil_function<T: TraitWithAssocType<I> + ?Sized, I>() +-> impl Future<Output = Result<(), T::Assoc>> { + async { Ok(()) } +} + +fn fails_to_compile() -> impl std::future::Future<Output = ()> + Send { + async { + let _ = evil_function::<dyn BoringTrait, _>().await; + } +} + +fn main() {} diff --git a/tests/ui/async-await/higher-ranked-auto-trait-5.no_assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-5.no_assumptions.stderr new file mode 100644 index 00000000000..8fa3c7483c8 --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-5.no_assumptions.stderr @@ -0,0 +1,13 @@ +error: implementation of `Send` is not general enough + --> $DIR/higher-ranked-auto-trait-5.rs:13:5 + | +LL | / assert_send(async { +LL | | call_me.call().await; +LL | | }); + | |______^ implementation of `Send` is not general enough + | + = note: `Send` would have to be implemented for the type `&'0 str`, for any lifetime `'0`... + = note: ...but `Send` is actually implemented for the type `&'1 str`, for some specific lifetime `'1` + +error: aborting due to 1 previous error + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-5.rs b/tests/ui/async-await/higher-ranked-auto-trait-5.rs new file mode 100644 index 00000000000..9a8b3f4357c --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-5.rs @@ -0,0 +1,54 @@ +// Repro for <https://github.com/rust-lang/rust/issues/130113#issue-2512517191>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] check-pass +//@[no_assumptions] known-bug: #110338 + +use std::future::Future; + +fn main() { + let call_me = Wrap(CallMeImpl { value: "test" }); + + assert_send(async { + call_me.call().await; + }); +} + +pub fn assert_send<F>(_future: F) +where + F: Future + Send, +{ +} + +pub trait CallMe { + fn call(&self) -> impl Future<Output = ()> + Send; +} + +struct Wrap<T>(T); + +impl<S> CallMe for Wrap<S> +where + S: CallMe + Send, +{ + // adding `+ Send` to this RPIT fixes the issue + fn call(&self) -> impl Future<Output = ()> { + self.0.call() + } +} + +#[derive(Debug, Clone, Copy)] +pub struct CallMeImpl<T> { + value: T, +} + +impl<T> CallMe for CallMeImpl<T> +where + // Can replace `Send` by `ToString`, `Clone`, whatever. When removing the + // `Send` bound, the compiler produces a higher-ranked lifetime error. + T: Send + 'static, +{ + fn call(&self) -> impl Future<Output = ()> { + async {} + } +} diff --git a/tests/ui/async-await/higher-ranked-auto-trait-6.no_assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-6.no_assumptions.stderr new file mode 100644 index 00000000000..d1f2d9a0753 --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-6.no_assumptions.stderr @@ -0,0 +1,50 @@ +error[E0308]: mismatched types + --> $DIR/higher-ranked-auto-trait-6.rs:16:5 + | +LL | Box::new(async { new(|| async { f().await }).await }) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ one type is more general than the other + | + = note: expected `async` block `{async block@$DIR/higher-ranked-auto-trait-6.rs:16:29: 16:34}` + found `async` block `{async block@$DIR/higher-ranked-auto-trait-6.rs:16:29: 16:34}` + = note: no two async blocks, even if identical, have the same type + = help: consider pinning your async block and casting it to a trait object + +error[E0308]: mismatched types + --> $DIR/higher-ranked-auto-trait-6.rs:16:5 + | +LL | Box::new(async { new(|| async { f().await }).await }) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ one type is more general than the other + | + = note: expected `async` block `{async block@$DIR/higher-ranked-auto-trait-6.rs:16:29: 16:34}` + found `async` block `{async block@$DIR/higher-ranked-auto-trait-6.rs:16:29: 16:34}` + = note: no two async blocks, even if identical, have the same type + = help: consider pinning your async block and casting it to a trait object + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error[E0308]: mismatched types + --> $DIR/higher-ranked-auto-trait-6.rs:16:5 + | +LL | Box::new(async { new(|| async { f().await }).await }) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ one type is more general than the other + | + = note: expected `async` block `{async block@$DIR/higher-ranked-auto-trait-6.rs:16:29: 16:34}` + found `async` block `{async block@$DIR/higher-ranked-auto-trait-6.rs:16:29: 16:34}` + = note: no two async blocks, even if identical, have the same type + = help: consider pinning your async block and casting it to a trait object + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error[E0308]: mismatched types + --> $DIR/higher-ranked-auto-trait-6.rs:16:5 + | +LL | Box::new(async { new(|| async { f().await }).await }) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ one type is more general than the other + | + = note: expected `async` block `{async block@$DIR/higher-ranked-auto-trait-6.rs:16:29: 16:34}` + found `async` block `{async block@$DIR/higher-ranked-auto-trait-6.rs:16:29: 16:34}` + = note: no two async blocks, even if identical, have the same type + = help: consider pinning your async block and casting it to a trait object + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: aborting due to 4 previous errors + +For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/async-await/higher-ranked-auto-trait-6.rs b/tests/ui/async-await/higher-ranked-auto-trait-6.rs new file mode 100644 index 00000000000..2c6adf8938d --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-6.rs @@ -0,0 +1,59 @@ +// Repro for <https://github.com/rust-lang/rust/issues/82921#issue-825114180>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] check-pass +//@[no_assumptions] known-bug: #110338 + +use core::future::Future; +use core::marker::PhantomData; +use core::pin::Pin; +use core::task::{Context, Poll}; + +async fn f() {} + +pub fn fail<'a>() -> Box<dyn Future<Output = ()> + Send + 'a> { + Box::new(async { new(|| async { f().await }).await }) +} + +fn new<A, B>(_a: A) -> F<A, B> +where + A: Fn() -> B, +{ + F { _i: PhantomData } +} + +trait Stream { + type Item; +} + +struct T<A, B> { + _a: PhantomData<A>, + _b: PhantomData<B>, +} + +impl<A, B> Stream for T<A, B> +where + A: Fn() -> B, +{ + type Item = B; +} + +struct F<A, B> +where + A: Fn() -> B, +{ + _i: PhantomData<<T<A, B> as Stream>::Item>, +} + +impl<A, B> Future for F<A, B> +where + A: Fn() -> B, +{ + type Output = (); + fn poll(self: Pin<&mut Self>, _cx: &mut Context) -> Poll<Self::Output> { + unimplemented!() + } +} + +fn main() {} diff --git a/tests/ui/async-await/higher-ranked-auto-trait-7.no_assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-7.no_assumptions.stderr new file mode 100644 index 00000000000..dcb8075566e --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-7.no_assumptions.stderr @@ -0,0 +1,8 @@ +error: `S` does not live long enough + --> $DIR/higher-ranked-auto-trait-7.rs:26:5 + | +LL | future::<'a, S, _>(async move { + | ^^^^^^^^^^^^^^^^^^ + +error: aborting due to 1 previous error + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-7.rs b/tests/ui/async-await/higher-ranked-auto-trait-7.rs new file mode 100644 index 00000000000..abded5a88d3 --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-7.rs @@ -0,0 +1,33 @@ +// Repro for <https://github.com/rust-lang/rust/issues/90696#issuecomment-963375847>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] check-pass +//@[no_assumptions] known-bug: #110338 + +#![allow(dropping_copy_types)] + +use std::{future::Future, marker::PhantomData}; + +trait Trait { + type Associated<'a>: Send + where + Self: 'a; +} + +fn future<'a, S: Trait + 'a, F>(f: F) -> F +where + F: Future<Output = ()> + Send, +{ + f +} + +fn foo<'a, S: Trait + 'a>() { + future::<'a, S, _>(async move { + let result: PhantomData<S::Associated<'a>> = PhantomData; + async {}.await; + drop(result); + }); +} + +fn main() {} diff --git a/tests/ui/async-await/higher-ranked-auto-trait-8.no_assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-8.no_assumptions.stderr new file mode 100644 index 00000000000..6208675117b --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-8.no_assumptions.stderr @@ -0,0 +1,10 @@ +error: higher-ranked lifetime error + --> $DIR/higher-ranked-auto-trait-8.rs:26:5 + | +LL | needs_send(use_my_struct(second_struct)); // ERROR + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: could not prove `impl Future<Output = ()>: Send` + +error: aborting due to 1 previous error + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-8.rs b/tests/ui/async-await/higher-ranked-auto-trait-8.rs new file mode 100644 index 00000000000..91cef204e44 --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-8.rs @@ -0,0 +1,27 @@ +// Repro for <https://github.com/rust-lang/rust/issues/64552#issuecomment-532801232>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] check-pass +//@[no_assumptions] known-bug: #110338 + +fn needs_send<T: Send>(_val: T) {} +async fn use_async<T>(_val: T) {} + +struct MyStruct<'a, T: 'a> { + val: &'a T, +} + +unsafe impl<'a, T: 'a> Send for MyStruct<'a, T> {} + +async fn use_my_struct(val: MyStruct<'static, &'static u8>) { + use_async(val).await; +} + +fn main() { + let first_struct: MyStruct<'static, &'static u8> = MyStruct { val: &&26 }; + let second_struct: MyStruct<'static, &'static u8> = MyStruct { val: &&27 }; + + needs_send(first_struct); + needs_send(use_my_struct(second_struct)); // ERROR +} diff --git a/tests/ui/async-await/higher-ranked-auto-trait-9.no_assumptions.stderr b/tests/ui/async-await/higher-ranked-auto-trait-9.no_assumptions.stderr new file mode 100644 index 00000000000..809cbcf0cad --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-9.no_assumptions.stderr @@ -0,0 +1,11 @@ +error: implementation of `Debug` is not general enough + --> $DIR/higher-ranked-auto-trait-9.rs:43:50 + | +LL | let fut: &(dyn Future<Output = ()> + Send) = &fut as _; + | ^^^^^^^^^ implementation of `Debug` is not general enough + | + = note: `(dyn Any + '0)` must implement `Debug`, for any lifetime `'0`... + = note: ...but `Debug` is actually implemented for the type `(dyn Any + 'static)` + +error: aborting due to 1 previous error + diff --git a/tests/ui/async-await/higher-ranked-auto-trait-9.rs b/tests/ui/async-await/higher-ranked-auto-trait-9.rs new file mode 100644 index 00000000000..66edbf23f2b --- /dev/null +++ b/tests/ui/async-await/higher-ranked-auto-trait-9.rs @@ -0,0 +1,44 @@ +// Repro for <https://github.com/rust-lang/rust/issues/87425#issue-952059416>. +//@ edition: 2021 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] check-pass +//@[no_assumptions] known-bug: #110338 + +use std::any::Any; +use std::fmt; +use std::future::Future; + +pub trait Foo { + type Item; +} + +impl<F, I> Foo for F +where + Self: FnOnce() -> I, + I: fmt::Debug, +{ + type Item = I; +} + +async fn foo_item<F: Foo>(_: F) -> F::Item { + unimplemented!() +} + +fn main() { + let fut = async { + let callback = || -> Box<dyn Any> { unimplemented!() }; + + // Using plain fn instead of a closure fixes the error, + // though you obviously can't capture any state... + // fn callback() -> Box<dyn Any> { + // todo!() + // } + + foo_item(callback).await; + }; + + // Removing `+ Send` bound also fixes the error, + // though at the cost of loosing `Send`ability... + let fut: &(dyn Future<Output = ()> + Send) = &fut as _; +} diff --git a/tests/ui/async-await/return-type-notation/issue-110963-early.stderr b/tests/ui/async-await/return-type-notation/issue-110963-early.no_assumptions.stderr index d6c3bd12aee..bb436364924 100644 --- a/tests/ui/async-await/return-type-notation/issue-110963-early.stderr +++ b/tests/ui/async-await/return-type-notation/issue-110963-early.no_assumptions.stderr @@ -1,5 +1,5 @@ error: implementation of `Send` is not general enough - --> $DIR/issue-110963-early.rs:14:5 + --> $DIR/issue-110963-early.rs:17:5 | LL | / spawn(async move { LL | | let mut hc = hc; @@ -13,7 +13,7 @@ LL | | }); = note: ...but `Send` is actually implemented for the type `impl Future<Output = bool> { <HC as HealthCheck>::check<'2>(..) }`, for some specific lifetime `'2` error: implementation of `Send` is not general enough - --> $DIR/issue-110963-early.rs:14:5 + --> $DIR/issue-110963-early.rs:17:5 | LL | / spawn(async move { LL | | let mut hc = hc; diff --git a/tests/ui/async-await/return-type-notation/issue-110963-early.rs b/tests/ui/async-await/return-type-notation/issue-110963-early.rs index 46b8fbf6f86..8c3180c0119 100644 --- a/tests/ui/async-await/return-type-notation/issue-110963-early.rs +++ b/tests/ui/async-await/return-type-notation/issue-110963-early.rs @@ -1,5 +1,8 @@ //@ edition: 2021 -//@ known-bug: #110963 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] check-pass +//@[no_assumptions] known-bug: #110338 #![feature(return_type_notation)] diff --git a/tests/ui/attributes/malformed-attrs.stderr b/tests/ui/attributes/malformed-attrs.stderr index 56f2be353e7..0d0c338d302 100644 --- a/tests/ui/attributes/malformed-attrs.stderr +++ b/tests/ui/attributes/malformed-attrs.stderr @@ -37,19 +37,6 @@ error: malformed `crate_name` attribute input LL | #[crate_name] | ^^^^^^^^^^^^^ help: must be of the form: `#[crate_name = "name"]` -error: malformed `coverage` attribute input - --> $DIR/malformed-attrs.rs:90:1 - | -LL | #[coverage] - | ^^^^^^^^^^^ - | -help: the following are the possible correct uses - | -LL | #[coverage(off)] - | +++++ -LL | #[coverage(on)] - | ++++ - error: malformed `no_sanitize` attribute input --> $DIR/malformed-attrs.rs:92:1 | @@ -460,6 +447,19 @@ error[E0539]: malformed `link_section` attribute input LL | #[link_section] | ^^^^^^^^^^^^^^^ help: must be of the form: `#[link_section = "name"]` +error[E0539]: malformed `coverage` attribute input + --> $DIR/malformed-attrs.rs:90:1 + | +LL | #[coverage] + | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument + | +help: try changing it to one of the following valid forms of the attribute + | +LL | #[coverage(off)] + | +++++ +LL | #[coverage(on)] + | ++++ + error[E0565]: malformed `no_implicit_prelude` attribute input --> $DIR/malformed-attrs.rs:97:1 | diff --git a/tests/ui/cast/cast-char.rs b/tests/ui/cast/cast-char.rs index 9634ed56f7b..5bf05072253 100644 --- a/tests/ui/cast/cast-char.rs +++ b/tests/ui/cast/cast-char.rs @@ -1,10 +1,58 @@ #![deny(overflowing_literals)] fn main() { - const XYZ: char = 0x1F888 as char; + // Valid cases - should suggest char literal + + // u8 range (0-255) + const VALID_U8_1: char = 0x41 as char; // 'A' + const VALID_U8_2: char = 0xFF as char; // maximum u8 + const VALID_U8_3: char = 0x00 as char; // minimum u8 + + // Valid Unicode in lower range [0x0, 0xD7FF] + const VALID_LOW_1: char = 0x1000 as char; // 4096 + //~^ ERROR: only `u8` can be cast into `char` + const VALID_LOW_2: char = 0xD7FF as char; // last valid in lower range + //~^ ERROR: only `u8` can be cast into `char` + const VALID_LOW_3: char = 0x0500 as char; // cyrillic range + //~^ ERROR: only `u8` can be cast into `char` + + // Valid Unicode in upper range [0xE000, 0x10FFFF] + const VALID_HIGH_1: char = 0xE000 as char; // first valid in upper range + //~^ ERROR only `u8` can be cast into `char` + const VALID_HIGH_2: char = 0x1F888 as char; // 129160 - example from issue + //~^ ERROR only `u8` can be cast into `char` + const VALID_HIGH_3: char = 0x10FFFF as char; // maximum valid Unicode + //~^ ERROR only `u8` can be cast into `char` + const VALID_HIGH_4: char = 0xFFFD as char; // replacement character + //~^ ERROR only `u8` can be cast into `char` + const VALID_HIGH_5: char = 0x1F600 as char; // emoji + //~^ ERROR only `u8` can be cast into `char` + + // Invalid cases - should show InvalidCharCast + + // Surrogate range [0xD800, 0xDFFF] - reserved for UTF-16 + const INVALID_SURROGATE_1: char = 0xD800 as char; // first surrogate + //~^ ERROR: surrogate values are not valid + const INVALID_SURROGATE_2: char = 0xDFFF as char; // last surrogate + //~^ ERROR: surrogate values are not valid + const INVALID_SURROGATE_3: char = 0xDB00 as char; // middle of surrogate range + //~^ ERROR: surrogate values are not valid + + // Too large values (> 0x10FFFF) + const INVALID_TOO_BIG_1: char = 0x110000 as char; // one more than maximum + //~^ ERROR: value exceeds maximum `char` value + const INVALID_TOO_BIG_2: char = 0xEF8888 as char; // example from issue + //~^ ERROR: value exceeds maximum `char` value + const INVALID_TOO_BIG_3: char = 0x1FFFFF as char; // much larger + //~^ ERROR: value exceeds maximum `char` value + const INVALID_TOO_BIG_4: char = 0xFFFFFF as char; // 24-bit maximum + //~^ ERROR: value exceeds maximum `char` value + + // Boundary cases + const BOUNDARY_1: char = 0xD7FE as char; // valid, before surrogate + //~^ ERROR only `u8` can be cast into `char` + const BOUNDARY_2: char = 0xE001 as char; // valid, after surrogate //~^ ERROR only `u8` can be cast into `char` - const XY: char = 129160 as char; + const BOUNDARY_3: char = 0x10FFFE as char; // valid, near maximum //~^ ERROR only `u8` can be cast into `char` - const ZYX: char = '\u{01F888}'; - println!("{}", XYZ); } diff --git a/tests/ui/cast/cast-char.stderr b/tests/ui/cast/cast-char.stderr index 211937c9d6f..a8d0b3b04b0 100644 --- a/tests/ui/cast/cast-char.stderr +++ b/tests/ui/cast/cast-char.stderr @@ -1,8 +1,8 @@ error: only `u8` can be cast into `char` - --> $DIR/cast-char.rs:4:23 + --> $DIR/cast-char.rs:12:31 | -LL | const XYZ: char = 0x1F888 as char; - | ^^^^^^^^^^^^^^^ help: use a `char` literal instead: `'\u{1F888}'` +LL | const VALID_LOW_1: char = 0x1000 as char; // 4096 + | ^^^^^^^^^^^^^^ help: use a `char` literal instead: `'\u{1000}'` | note: the lint level is defined here --> $DIR/cast-char.rs:1:9 @@ -11,10 +11,120 @@ LL | #![deny(overflowing_literals)] | ^^^^^^^^^^^^^^^^^^^^ error: only `u8` can be cast into `char` - --> $DIR/cast-char.rs:6:22 + --> $DIR/cast-char.rs:14:31 | -LL | const XY: char = 129160 as char; - | ^^^^^^^^^^^^^^ help: use a `char` literal instead: `'\u{1F888}'` +LL | const VALID_LOW_2: char = 0xD7FF as char; // last valid in lower range + | ^^^^^^^^^^^^^^ help: use a `char` literal instead: `'\u{D7FF}'` -error: aborting due to 2 previous errors +error: only `u8` can be cast into `char` + --> $DIR/cast-char.rs:16:31 + | +LL | const VALID_LOW_3: char = 0x0500 as char; // cyrillic range + | ^^^^^^^^^^^^^^ help: use a `char` literal instead: `'\u{500}'` + +error: only `u8` can be cast into `char` + --> $DIR/cast-char.rs:20:32 + | +LL | const VALID_HIGH_1: char = 0xE000 as char; // first valid in upper range + | ^^^^^^^^^^^^^^ help: use a `char` literal instead: `'\u{E000}'` + +error: only `u8` can be cast into `char` + --> $DIR/cast-char.rs:22:32 + | +LL | const VALID_HIGH_2: char = 0x1F888 as char; // 129160 - example from issue + | ^^^^^^^^^^^^^^^ help: use a `char` literal instead: `'\u{1F888}'` + +error: only `u8` can be cast into `char` + --> $DIR/cast-char.rs:24:32 + | +LL | const VALID_HIGH_3: char = 0x10FFFF as char; // maximum valid Unicode + | ^^^^^^^^^^^^^^^^ help: use a `char` literal instead: `'\u{10FFFF}'` + +error: only `u8` can be cast into `char` + --> $DIR/cast-char.rs:26:32 + | +LL | const VALID_HIGH_4: char = 0xFFFD as char; // replacement character + | ^^^^^^^^^^^^^^ help: use a `char` literal instead: `'\u{FFFD}'` + +error: only `u8` can be cast into `char` + --> $DIR/cast-char.rs:28:32 + | +LL | const VALID_HIGH_5: char = 0x1F600 as char; // emoji + | ^^^^^^^^^^^^^^^ help: use a `char` literal instead: `'\u{1F600}'` + +error: surrogate values are not valid for `char` + --> $DIR/cast-char.rs:34:39 + | +LL | const INVALID_SURROGATE_1: char = 0xD800 as char; // first surrogate + | ^^^^^^^^^^^^^^ + | + = note: `0xD800..=0xDFFF` are reserved for Unicode surrogates and are not valid `char` values + +error: surrogate values are not valid for `char` + --> $DIR/cast-char.rs:36:39 + | +LL | const INVALID_SURROGATE_2: char = 0xDFFF as char; // last surrogate + | ^^^^^^^^^^^^^^ + | + = note: `0xD800..=0xDFFF` are reserved for Unicode surrogates and are not valid `char` values + +error: surrogate values are not valid for `char` + --> $DIR/cast-char.rs:38:39 + | +LL | const INVALID_SURROGATE_3: char = 0xDB00 as char; // middle of surrogate range + | ^^^^^^^^^^^^^^ + | + = note: `0xD800..=0xDFFF` are reserved for Unicode surrogates and are not valid `char` values + +error: value exceeds maximum `char` value + --> $DIR/cast-char.rs:42:37 + | +LL | const INVALID_TOO_BIG_1: char = 0x110000 as char; // one more than maximum + | ^^^^^^^^^^^^^^^^ + | + = note: maximum valid `char` value is `0x10FFFF` + +error: value exceeds maximum `char` value + --> $DIR/cast-char.rs:44:37 + | +LL | const INVALID_TOO_BIG_2: char = 0xEF8888 as char; // example from issue + | ^^^^^^^^^^^^^^^^ + | + = note: maximum valid `char` value is `0x10FFFF` + +error: value exceeds maximum `char` value + --> $DIR/cast-char.rs:46:37 + | +LL | const INVALID_TOO_BIG_3: char = 0x1FFFFF as char; // much larger + | ^^^^^^^^^^^^^^^^ + | + = note: maximum valid `char` value is `0x10FFFF` + +error: value exceeds maximum `char` value + --> $DIR/cast-char.rs:48:37 + | +LL | const INVALID_TOO_BIG_4: char = 0xFFFFFF as char; // 24-bit maximum + | ^^^^^^^^^^^^^^^^ + | + = note: maximum valid `char` value is `0x10FFFF` + +error: only `u8` can be cast into `char` + --> $DIR/cast-char.rs:52:30 + | +LL | const BOUNDARY_1: char = 0xD7FE as char; // valid, before surrogate + | ^^^^^^^^^^^^^^ help: use a `char` literal instead: `'\u{D7FE}'` + +error: only `u8` can be cast into `char` + --> $DIR/cast-char.rs:54:30 + | +LL | const BOUNDARY_2: char = 0xE001 as char; // valid, after surrogate + | ^^^^^^^^^^^^^^ help: use a `char` literal instead: `'\u{E001}'` + +error: only `u8` can be cast into `char` + --> $DIR/cast-char.rs:56:30 + | +LL | const BOUNDARY_3: char = 0x10FFFE as char; // valid, near maximum + | ^^^^^^^^^^^^^^^^ help: use a `char` literal instead: `'\u{10FFFE}'` + +error: aborting due to 18 previous errors diff --git a/tests/ui/check-cfg/cfg-crate-features.rs b/tests/ui/check-cfg/cfg-crate-features.rs new file mode 100644 index 00000000000..16be8aaeeaa --- /dev/null +++ b/tests/ui/check-cfg/cfg-crate-features.rs @@ -0,0 +1,13 @@ +// https://github.com/rust-lang/rust/issues/143977 +// Check that features are available when an attribute is applied to a crate + +#![cfg(version("1.0"))] +//~^ ERROR `cfg(version)` is experimental and subject to change + +// Using invalid value `does_not_exist`, +// so we don't accidentally configure out the crate for any certain OS +#![cfg(not(target(os = "does_not_exist")))] +//~^ ERROR compact `cfg(target(..))` is experimental and subject to change +//~| WARN unexpected `cfg` condition value: `does_not_exist` + +fn main() {} diff --git a/tests/ui/check-cfg/cfg-crate-features.stderr b/tests/ui/check-cfg/cfg-crate-features.stderr new file mode 100644 index 00000000000..60a5404c073 --- /dev/null +++ b/tests/ui/check-cfg/cfg-crate-features.stderr @@ -0,0 +1,33 @@ +error[E0658]: `cfg(version)` is experimental and subject to change + --> $DIR/cfg-crate-features.rs:4:8 + | +LL | #![cfg(version("1.0"))] + | ^^^^^^^^^^^^^^ + | + = note: see issue #64796 <https://github.com/rust-lang/rust/issues/64796> for more information + = help: add `#![feature(cfg_version)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + +error[E0658]: compact `cfg(target(..))` is experimental and subject to change + --> $DIR/cfg-crate-features.rs:9:12 + | +LL | #![cfg(not(target(os = "does_not_exist")))] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #96901 <https://github.com/rust-lang/rust/issues/96901> for more information + = help: add `#![feature(cfg_target_compact)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + +warning: unexpected `cfg` condition value: `does_not_exist` + --> $DIR/cfg-crate-features.rs:9:19 + | +LL | #![cfg(not(target(os = "does_not_exist")))] + | ^^^^^^^^^^^^^^^^^^^^^ + | + = note: expected values for `target_os` are: `aix`, `amdhsa`, `android`, `cuda`, `cygwin`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `lynxos178`, `macos`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `psx`, `redox`, `rtems`, `solaris`, `solid_asp3`, `teeos`, `trusty`, `tvos`, and `uefi` and 9 more + = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg.html> for more information about checking conditional configuration + = note: `#[warn(unexpected_cfgs)]` on by default + +error: aborting due to 2 previous errors; 1 warning emitted + +For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/const-generics/type-dependent/issue-71348.full.stderr b/tests/ui/const-generics/type-dependent/issue-71348.full.stderr index f68fdb3b651..32fa46b92b3 100644 --- a/tests/ui/const-generics/type-dependent/issue-71348.full.stderr +++ b/tests/ui/const-generics/type-dependent/issue-71348.full.stderr @@ -1,14 +1,15 @@ -warning: lifetime flowing from input to output with different syntax can be confusing +warning: hiding a lifetime that's named elsewhere is confusing --> $DIR/issue-71348.rs:18:40 | LL | fn ask<'a, const N: &'static str>(&'a self) -> &'a <Self as Get<N>>::Target - | ^^ -- ------------------------ the lifetimes get resolved as `'a` + | ^^ -- ------------------------ the same lifetime is hidden here | | | - | | the lifetimes get resolved as `'a` - | this lifetime flows to the output + | | the same lifetime is named here + | the lifetime is named here | + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default -help: one option is to consistently use `'a` +help: consistently use `'a` | LL | fn ask<'a, const N: &'static str>(&'a self) -> &'a <Self as Get<'a, N>>::Target | +++ diff --git a/tests/ui/const-generics/type-dependent/issue-71348.rs b/tests/ui/const-generics/type-dependent/issue-71348.rs index c6563c80305..9053f362ce4 100644 --- a/tests/ui/const-generics/type-dependent/issue-71348.rs +++ b/tests/ui/const-generics/type-dependent/issue-71348.rs @@ -17,7 +17,7 @@ trait Get<'a, const N: &'static str> { impl Foo { fn ask<'a, const N: &'static str>(&'a self) -> &'a <Self as Get<N>>::Target //[min]~^ ERROR `&'static str` is forbidden as the type of a const generic parameter - //[full]~^^ WARNING lifetime flowing from input to output with different syntax + //[full]~^^ WARNING hiding a lifetime that's named elsewhere is confusing where Self: Get<'a, N>, { diff --git a/tests/ui/consts/const-compare-bytes-ub.rs b/tests/ui/consts/const-compare-bytes-ub.rs index 0bc8585a4ee..7e3df92a2bf 100644 --- a/tests/ui/consts/const-compare-bytes-ub.rs +++ b/tests/ui/consts/const-compare-bytes-ub.rs @@ -1,6 +1,6 @@ //@ check-fail -#![feature(core_intrinsics)] +#![feature(core_intrinsics, const_cmp)] use std::intrinsics::compare_bytes; use std::mem::MaybeUninit; diff --git a/tests/ui/consts/const-compare-bytes.rs b/tests/ui/consts/const-compare-bytes.rs index cd5cdfd0400..9563375555c 100644 --- a/tests/ui/consts/const-compare-bytes.rs +++ b/tests/ui/consts/const-compare-bytes.rs @@ -1,6 +1,6 @@ //@ run-pass -#![feature(core_intrinsics)] +#![feature(core_intrinsics, const_cmp)] use std::intrinsics::compare_bytes; fn main() { diff --git a/tests/ui/consts/const-eval/auxiliary/stability.rs b/tests/ui/consts/const-eval/auxiliary/stability.rs index e6159551860..48ced3bc51e 100644 --- a/tests/ui/consts/const-eval/auxiliary/stability.rs +++ b/tests/ui/consts/const-eval/auxiliary/stability.rs @@ -1,10 +1,11 @@ // Crate that exports a const fn. Used for testing cross-crate. -#![crate_type="rlib"] +#![crate_type = "rlib"] #![stable(feature = "rust1", since = "1.0.0")] - #![feature(staged_api)] #[stable(feature = "rust1", since = "1.0.0")] -#[rustc_const_unstable(feature="foo", issue = "none")] -pub const fn foo() -> u32 { 42 } +#[rustc_const_unstable(feature = "foo", issue = "none")] +pub const fn foo() -> u32 { + 42 +} diff --git a/tests/ui/consts/const-eval/heap/alloc_intrinsic_nontransient.rs b/tests/ui/consts/const-eval/heap/alloc_intrinsic_nontransient.rs index 83ed496ac2c..af24e463b50 100644 --- a/tests/ui/consts/const-eval/heap/alloc_intrinsic_nontransient.rs +++ b/tests/ui/consts/const-eval/heap/alloc_intrinsic_nontransient.rs @@ -8,11 +8,11 @@ const FOO_RAW: *const i32 = foo(); const fn foo() -> &'static i32 { let t = unsafe { - let i = intrinsics::const_allocate(4, 4) as * mut i32; + let i = intrinsics::const_allocate(4, 4) as *mut i32; *i = 20; i }; - unsafe { &*t } + unsafe { &*(intrinsics::const_make_global(t as *mut u8) as *const i32) } } fn main() { assert_eq!(*FOO, 20); diff --git a/tests/ui/consts/const-eval/heap/alloc_intrinsic_uninit.32bit.stderr b/tests/ui/consts/const-eval/heap/alloc_intrinsic_uninit.32bit.stderr index 11ed0841a00..a8c7ee93971 100644 --- a/tests/ui/consts/const-eval/heap/alloc_intrinsic_uninit.32bit.stderr +++ b/tests/ui/consts/const-eval/heap/alloc_intrinsic_uninit.32bit.stderr @@ -1,7 +1,7 @@ error[E0080]: constructing invalid value at .<deref>: encountered uninitialized memory, but expected an integer --> $DIR/alloc_intrinsic_uninit.rs:7:1 | -LL | const BAR: &i32 = unsafe { &*(intrinsics::const_allocate(4, 4) as *mut i32) }; +LL | const BAR: &i32 = unsafe { | ^^^^^^^^^^^^^^^ it is undefined behavior to use this value | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. diff --git a/tests/ui/consts/const-eval/heap/alloc_intrinsic_uninit.64bit.stderr b/tests/ui/consts/const-eval/heap/alloc_intrinsic_uninit.64bit.stderr index 691bde87d2f..47e1c22cc2c 100644 --- a/tests/ui/consts/const-eval/heap/alloc_intrinsic_uninit.64bit.stderr +++ b/tests/ui/consts/const-eval/heap/alloc_intrinsic_uninit.64bit.stderr @@ -1,7 +1,7 @@ error[E0080]: constructing invalid value at .<deref>: encountered uninitialized memory, but expected an integer --> $DIR/alloc_intrinsic_uninit.rs:7:1 | -LL | const BAR: &i32 = unsafe { &*(intrinsics::const_allocate(4, 4) as *mut i32) }; +LL | const BAR: &i32 = unsafe { | ^^^^^^^^^^^^^^^ it is undefined behavior to use this value | = note: The rules on what exactly is undefined behavior aren't clear, so this check might be overzealous. Please open an issue on the rustc repository if you believe it should not be considered undefined behavior. diff --git a/tests/ui/consts/const-eval/heap/alloc_intrinsic_uninit.rs b/tests/ui/consts/const-eval/heap/alloc_intrinsic_uninit.rs index ffc35ca1ddc..c54115de204 100644 --- a/tests/ui/consts/const-eval/heap/alloc_intrinsic_uninit.rs +++ b/tests/ui/consts/const-eval/heap/alloc_intrinsic_uninit.rs @@ -4,6 +4,8 @@ #![feature(const_heap)] use std::intrinsics; -const BAR: &i32 = unsafe { &*(intrinsics::const_allocate(4, 4) as *mut i32) }; -//~^ ERROR: uninitialized memory +const BAR: &i32 = unsafe { //~ ERROR: uninitialized memory + // Make the pointer immutable to avoid errors related to mutable pointers in constants. + &*(intrinsics::const_make_global(intrinsics::const_allocate(4, 4)) as *const i32) +}; fn main() {} diff --git a/tests/ui/consts/const-eval/heap/alloc_intrinsic_untyped.rs b/tests/ui/consts/const-eval/heap/alloc_intrinsic_untyped.rs deleted file mode 100644 index 26cb69e458b..00000000000 --- a/tests/ui/consts/const-eval/heap/alloc_intrinsic_untyped.rs +++ /dev/null @@ -1,11 +0,0 @@ -// We unleash Miri here since this test demonstrates code that bypasses the checks against interning -// mutable pointers, which currently ICEs. Unleashing Miri silences the ICE. -//@ compile-flags: -Zunleash-the-miri-inside-of-you -#![feature(core_intrinsics)] -#![feature(const_heap)] -use std::intrinsics; - -const BAR: *mut i32 = unsafe { intrinsics::const_allocate(4, 4) as *mut i32 }; -//~^ error: mutable pointer in final value of constant - -fn main() {} diff --git a/tests/ui/consts/const-eval/heap/alloc_intrinsic_untyped.stderr b/tests/ui/consts/const-eval/heap/alloc_intrinsic_untyped.stderr deleted file mode 100644 index 0dc49dc3cd8..00000000000 --- a/tests/ui/consts/const-eval/heap/alloc_intrinsic_untyped.stderr +++ /dev/null @@ -1,8 +0,0 @@ -error: encountered mutable pointer in final value of constant - --> $DIR/alloc_intrinsic_untyped.rs:8:1 - | -LL | const BAR: *mut i32 = unsafe { intrinsics::const_allocate(4, 4) as *mut i32 }; - | ^^^^^^^^^^^^^^^^^^^ - -error: aborting due to 1 previous error - diff --git a/tests/ui/consts/const-eval/heap/dealloc_intrinsic.rs b/tests/ui/consts/const-eval/heap/dealloc_intrinsic.rs index 3cc035c66d3..515e12d2b77 100644 --- a/tests/ui/consts/const-eval/heap/dealloc_intrinsic.rs +++ b/tests/ui/consts/const-eval/heap/dealloc_intrinsic.rs @@ -12,7 +12,7 @@ const _X: () = unsafe { const Y: &u32 = unsafe { let ptr = intrinsics::const_allocate(4, 4) as *mut u32; *ptr = 42; - &*ptr + &*(intrinsics::const_make_global(ptr as *mut u8) as *const u32) }; const Z: &u32 = &42; diff --git a/tests/ui/consts/const-eval/heap/make-global-dangling.rs b/tests/ui/consts/const-eval/heap/make-global-dangling.rs new file mode 100644 index 00000000000..f4c5929bc41 --- /dev/null +++ b/tests/ui/consts/const-eval/heap/make-global-dangling.rs @@ -0,0 +1,18 @@ +// Ensure that we can't call `const_make_global` on dangling pointers. + +#![feature(core_intrinsics)] +#![feature(const_heap)] + +use std::intrinsics; + +const Y: &u32 = unsafe { + &*(intrinsics::const_make_global(std::ptr::null_mut()) as *const u32) + //~^ error: pointer not dereferenceable +}; + +const Z: &u32 = unsafe { + &*(intrinsics::const_make_global(std::ptr::dangling_mut()) as *const u32) + //~^ error: pointer not dereferenceable +}; + +fn main() {} diff --git a/tests/ui/consts/const-eval/heap/make-global-dangling.stderr b/tests/ui/consts/const-eval/heap/make-global-dangling.stderr new file mode 100644 index 00000000000..48c2796d0bf --- /dev/null +++ b/tests/ui/consts/const-eval/heap/make-global-dangling.stderr @@ -0,0 +1,15 @@ +error[E0080]: pointer not dereferenceable: pointer must point to some allocation, but got null pointer + --> $DIR/make-global-dangling.rs:9:8 + | +LL | &*(intrinsics::const_make_global(std::ptr::null_mut()) as *const u32) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `Y` failed here + +error[E0080]: pointer not dereferenceable: pointer must point to some allocation, but got 0x1[noalloc] which is a dangling pointer (it has no provenance) + --> $DIR/make-global-dangling.rs:14:8 + | +LL | &*(intrinsics::const_make_global(std::ptr::dangling_mut()) as *const u32) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `Z` failed here + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0080`. diff --git a/tests/ui/consts/const-eval/heap/make-global-other.rs b/tests/ui/consts/const-eval/heap/make-global-other.rs new file mode 100644 index 00000000000..4e2a59de13e --- /dev/null +++ b/tests/ui/consts/const-eval/heap/make-global-other.rs @@ -0,0 +1,15 @@ +// Ensure that we can't call `const_make_global` on pointers not in the current interpreter. + +#![feature(core_intrinsics)] +#![feature(const_heap)] + +use std::intrinsics; + +const X: &i32 = &0; + +const Y: &i32 = unsafe { + &*(intrinsics::const_make_global(X as *const i32 as *mut u8) as *const i32) + //~^ error: pointer passed to `const_make_global` does not point to a heap allocation: ALLOC0<imm> +}; + +fn main() {} diff --git a/tests/ui/consts/const-eval/heap/make-global-other.stderr b/tests/ui/consts/const-eval/heap/make-global-other.stderr new file mode 100644 index 00000000000..ed0d768cf37 --- /dev/null +++ b/tests/ui/consts/const-eval/heap/make-global-other.stderr @@ -0,0 +1,9 @@ +error[E0080]: pointer passed to `const_make_global` does not point to a heap allocation: ALLOC0<imm> + --> $DIR/make-global-other.rs:11:8 + | +LL | &*(intrinsics::const_make_global(X as *const i32 as *mut u8) as *const i32) + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `Y` failed here + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0080`. diff --git a/tests/ui/consts/const-eval/heap/make-global-twice.rs b/tests/ui/consts/const-eval/heap/make-global-twice.rs new file mode 100644 index 00000000000..0cd617cea3e --- /dev/null +++ b/tests/ui/consts/const-eval/heap/make-global-twice.rs @@ -0,0 +1,18 @@ +// Ensure that we can't call `const_make_global` twice. + +#![feature(core_intrinsics)] +#![feature(const_heap)] + +use std::intrinsics; + +const Y: &i32 = unsafe { + let ptr = intrinsics::const_allocate(4, 4); + let i = ptr as *mut i32; + *i = 20; + intrinsics::const_make_global(ptr); + intrinsics::const_make_global(ptr); + //~^ error: attempting to call `const_make_global` twice on the same allocation ALLOC0 + &*i +}; + +fn main() {} diff --git a/tests/ui/consts/const-eval/heap/make-global-twice.stderr b/tests/ui/consts/const-eval/heap/make-global-twice.stderr new file mode 100644 index 00000000000..95cdb9694d8 --- /dev/null +++ b/tests/ui/consts/const-eval/heap/make-global-twice.stderr @@ -0,0 +1,9 @@ +error[E0080]: attempting to call `const_make_global` twice on the same allocation ALLOC0 + --> $DIR/make-global-twice.rs:13:5 + | +LL | intrinsics::const_make_global(ptr); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `Y` failed here + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0080`. diff --git a/tests/ui/consts/const-eval/heap/make-global.rs b/tests/ui/consts/const-eval/heap/make-global.rs new file mode 100644 index 00000000000..b26fe2434ab --- /dev/null +++ b/tests/ui/consts/const-eval/heap/make-global.rs @@ -0,0 +1,21 @@ +//@ run-pass +#![feature(core_intrinsics)] +#![feature(const_heap)] +use std::intrinsics; + +const FOO: &i32 = foo(); +const FOO_RAW: *const i32 = foo(); + +const fn foo() -> &'static i32 { + unsafe { + let ptr = intrinsics::const_allocate(4, 4); + let t = ptr as *mut i32; + *t = 20; + intrinsics::const_make_global(ptr); + &*t + } +} +fn main() { + assert_eq!(*FOO, 20); + assert_eq!(unsafe { *FOO_RAW }, 20); +} diff --git a/tests/ui/consts/const-eval/heap/ptr_made_global_mutated.rs b/tests/ui/consts/const-eval/heap/ptr_made_global_mutated.rs new file mode 100644 index 00000000000..bea2a5949c2 --- /dev/null +++ b/tests/ui/consts/const-eval/heap/ptr_made_global_mutated.rs @@ -0,0 +1,15 @@ +// Ensure that once an allocation is "made global", we can no longer mutate it. +#![feature(core_intrinsics)] +#![feature(const_heap)] +use std::intrinsics; + +const A: &u8 = unsafe { + let ptr = intrinsics::const_allocate(1, 1); + *ptr = 1; + let ptr: *const u8 = intrinsics::const_make_global(ptr); + *(ptr as *mut u8) = 2; + //~^ error: writing to ALLOC0 which is read-only + &*ptr +}; + +fn main() {} diff --git a/tests/ui/consts/const-eval/heap/ptr_made_global_mutated.stderr b/tests/ui/consts/const-eval/heap/ptr_made_global_mutated.stderr new file mode 100644 index 00000000000..0e88ea77d1c --- /dev/null +++ b/tests/ui/consts/const-eval/heap/ptr_made_global_mutated.stderr @@ -0,0 +1,9 @@ +error[E0080]: writing to ALLOC0 which is read-only + --> $DIR/ptr_made_global_mutated.rs:10:5 + | +LL | *(ptr as *mut u8) = 2; + | ^^^^^^^^^^^^^^^^^^^^^ evaluation of `A` failed here + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0080`. diff --git a/tests/ui/consts/const-eval/heap/ptr_not_made_global.rs b/tests/ui/consts/const-eval/heap/ptr_not_made_global.rs new file mode 100644 index 00000000000..6980e92c218 --- /dev/null +++ b/tests/ui/consts/const-eval/heap/ptr_not_made_global.rs @@ -0,0 +1,24 @@ +// Ensure that we reject interning `const_allocate`d allocations in the final value of constants +// if they have not been made global through `const_make_global`. The pointers are made *immutable* +// to focus the test on the missing `make_global`; `ptr_not_made_global_mut.rs` covers the case +// where the pointer remains mutable. + +#![feature(core_intrinsics)] +#![feature(const_heap)] +use std::intrinsics; + +const FOO: &i32 = foo(); +//~^ error: encountered `const_allocate` pointer in final value that was not made global +const FOO_RAW: *const i32 = foo(); +//~^ error: encountered `const_allocate` pointer in final value that was not made global + +const fn foo() -> &'static i32 { + let t = unsafe { + let i = intrinsics::const_allocate(4, 4) as *mut i32; + *i = 20; + i + }; + unsafe { &*t } +} + +fn main() {} diff --git a/tests/ui/consts/const-eval/heap/ptr_not_made_global.stderr b/tests/ui/consts/const-eval/heap/ptr_not_made_global.stderr new file mode 100644 index 00000000000..cb2bb1e8cd8 --- /dev/null +++ b/tests/ui/consts/const-eval/heap/ptr_not_made_global.stderr @@ -0,0 +1,18 @@ +error: encountered `const_allocate` pointer in final value that was not made global + --> $DIR/ptr_not_made_global.rs:10:1 + | +LL | const FOO: &i32 = foo(); + | ^^^^^^^^^^^^^^^ + | + = note: use `const_make_global` to make allocated pointers immutable before returning + +error: encountered `const_allocate` pointer in final value that was not made global + --> $DIR/ptr_not_made_global.rs:12:1 + | +LL | const FOO_RAW: *const i32 = foo(); + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: use `const_make_global` to make allocated pointers immutable before returning + +error: aborting due to 2 previous errors + diff --git a/tests/ui/consts/const-eval/heap/ptr_not_made_global_mut.rs b/tests/ui/consts/const-eval/heap/ptr_not_made_global_mut.rs new file mode 100644 index 00000000000..e44a3f7a23c --- /dev/null +++ b/tests/ui/consts/const-eval/heap/ptr_not_made_global_mut.rs @@ -0,0 +1,11 @@ +// Ensure that we reject interning `const_allocate`d allocations in the final value of constants +// if they have not been made global through `const_make_global`. This covers the case where the +// pointer is even still mutable, which used to ICE. +#![feature(core_intrinsics)] +#![feature(const_heap)] +use std::intrinsics; + +const BAR: *mut i32 = unsafe { intrinsics::const_allocate(4, 4) as *mut i32 }; +//~^ error: encountered `const_allocate` pointer in final value that was not made global + +fn main() {} diff --git a/tests/ui/consts/const-eval/heap/ptr_not_made_global_mut.stderr b/tests/ui/consts/const-eval/heap/ptr_not_made_global_mut.stderr new file mode 100644 index 00000000000..2445ce633d6 --- /dev/null +++ b/tests/ui/consts/const-eval/heap/ptr_not_made_global_mut.stderr @@ -0,0 +1,10 @@ +error: encountered `const_allocate` pointer in final value that was not made global + --> $DIR/ptr_not_made_global_mut.rs:8:1 + | +LL | const BAR: *mut i32 = unsafe { intrinsics::const_allocate(4, 4) as *mut i32 }; + | ^^^^^^^^^^^^^^^^^^^ + | + = note: use `const_make_global` to make allocated pointers immutable before returning + +error: aborting due to 1 previous error + diff --git a/tests/ui/consts/const-eval/ub-slice-get-unchecked.rs b/tests/ui/consts/const-eval/ub-slice-get-unchecked.rs index e805ac01c9d..ad2b49e6049 100644 --- a/tests/ui/consts/const-eval/ub-slice-get-unchecked.rs +++ b/tests/ui/consts/const-eval/ub-slice-get-unchecked.rs @@ -1,9 +1,10 @@ -//@ known-bug: #110395 +#![feature(const_index, const_trait_impl)] const A: [(); 5] = [(), (), (), (), ()]; // Since the indexing is on a ZST, the addresses are all fine, // but we should still catch the bad range. const B: &[()] = unsafe { A.get_unchecked(3..1) }; +//~^ ERROR: slice::get_unchecked requires that the range is within the slice fn main() {} diff --git a/tests/ui/consts/const-eval/ub-slice-get-unchecked.stderr b/tests/ui/consts/const-eval/ub-slice-get-unchecked.stderr index 6e428079afe..88ea310f19c 100644 --- a/tests/ui/consts/const-eval/ub-slice-get-unchecked.stderr +++ b/tests/ui/consts/const-eval/ub-slice-get-unchecked.stderr @@ -1,11 +1,11 @@ -error[E0015]: cannot call non-const method `core::slice::<impl [()]>::get_unchecked::<std::ops::Range<usize>>` in constants - --> $DIR/ub-slice-get-unchecked.rs:7:29 +error[E0080]: evaluation panicked: unsafe precondition(s) violated: slice::get_unchecked requires that the range is within the slice + + This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety. + --> $DIR/ub-slice-get-unchecked.rs:7:27 | LL | const B: &[()] = unsafe { A.get_unchecked(3..1) }; - | ^^^^^^^^^^^^^^^^^^^ - | - = note: calls in constants are limited to constant functions, tuple structs and tuple variants + | ^^^^^^^^^^^^^^^^^^^^^ evaluation of `B` failed here error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0015`. +For more information about this error, try `rustc --explain E0080`. diff --git a/tests/ui/consts/const-size_of_val-align_of_val-extern-type.rs b/tests/ui/consts/const-size_of_val-align_of_val-extern-type.rs index 2372d1c3e3d..fd3ed8f1826 100644 --- a/tests/ui/consts/const-size_of_val-align_of_val-extern-type.rs +++ b/tests/ui/consts/const-size_of_val-align_of_val-extern-type.rs @@ -8,8 +8,8 @@ extern "C" { } const _SIZE: usize = unsafe { size_of_val(&4 as *const i32 as *const Opaque) }; -//~^ ERROR the size for values of type `Opaque` cannot be known +//~^ ERROR `extern type` does not have known layout const _ALIGN: usize = unsafe { align_of_val(&4 as *const i32 as *const Opaque) }; -//~^ ERROR the size for values of type `Opaque` cannot be known +//~^ ERROR `extern type` does not have known layout fn main() {} diff --git a/tests/ui/consts/const-size_of_val-align_of_val-extern-type.stderr b/tests/ui/consts/const-size_of_val-align_of_val-extern-type.stderr index 825b9e94158..23f7aaf538e 100644 --- a/tests/ui/consts/const-size_of_val-align_of_val-extern-type.stderr +++ b/tests/ui/consts/const-size_of_val-align_of_val-extern-type.stderr @@ -1,39 +1,15 @@ -error[E0277]: the size for values of type `Opaque` cannot be known - --> $DIR/const-size_of_val-align_of_val-extern-type.rs:10:43 +error[E0080]: `extern type` does not have known layout + --> $DIR/const-size_of_val-align_of_val-extern-type.rs:10:31 | LL | const _SIZE: usize = unsafe { size_of_val(&4 as *const i32 as *const Opaque) }; - | ----------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `MetaSized` is not implemented for `Opaque` - | | - | required by a bound introduced by this call - | - = note: the trait bound `Opaque: MetaSized` is not satisfied -note: required by a bound in `std::intrinsics::size_of_val` - --> $SRC_DIR/core/src/intrinsics/mod.rs:LL:COL -help: consider borrowing here - | -LL | const _SIZE: usize = unsafe { size_of_val(&(&4 as *const i32 as *const Opaque)) }; - | ++ + -LL | const _SIZE: usize = unsafe { size_of_val(&mut (&4 as *const i32 as *const Opaque)) }; - | ++++++ + + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `_SIZE` failed here -error[E0277]: the size for values of type `Opaque` cannot be known - --> $DIR/const-size_of_val-align_of_val-extern-type.rs:12:45 +error[E0080]: `extern type` does not have known layout + --> $DIR/const-size_of_val-align_of_val-extern-type.rs:12:32 | LL | const _ALIGN: usize = unsafe { align_of_val(&4 as *const i32 as *const Opaque) }; - | ------------ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `MetaSized` is not implemented for `Opaque` - | | - | required by a bound introduced by this call - | - = note: the trait bound `Opaque: MetaSized` is not satisfied -note: required by a bound in `std::intrinsics::align_of_val` - --> $SRC_DIR/core/src/intrinsics/mod.rs:LL:COL -help: consider borrowing here - | -LL | const _ALIGN: usize = unsafe { align_of_val(&(&4 as *const i32 as *const Opaque)) }; - | ++ + -LL | const _ALIGN: usize = unsafe { align_of_val(&mut (&4 as *const i32 as *const Opaque)) }; - | ++++++ + + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `_ALIGN` failed here error: aborting due to 2 previous errors -For more information about this error, try `rustc --explain E0277`. +For more information about this error, try `rustc --explain E0080`. diff --git a/tests/ui/consts/const-try.rs b/tests/ui/consts/const-try.rs index 26aa9230a39..e13fad78441 100644 --- a/tests/ui/consts/const-try.rs +++ b/tests/ui/consts/const-try.rs @@ -13,14 +13,14 @@ struct TryMe; struct Error; impl const FromResidual<Error> for TryMe { - //~^ ERROR const `impl` for trait `FromResidual` which is not marked with `#[const_trait]` + //~^ ERROR const `impl` for trait `FromResidual` which is not `const` fn from_residual(residual: Error) -> Self { TryMe } } impl const Try for TryMe { - //~^ ERROR const `impl` for trait `Try` which is not marked with `#[const_trait]` + //~^ ERROR const `impl` for trait `Try` which is not `const` type Output = (); type Residual = Error; fn from_output(output: Self::Output) -> Self { diff --git a/tests/ui/consts/const-try.stderr b/tests/ui/consts/const-try.stderr index 4209ca1d526..7004ea3e6db 100644 --- a/tests/ui/consts/const-try.stderr +++ b/tests/ui/consts/const-try.stderr @@ -1,19 +1,19 @@ -error: const `impl` for trait `FromResidual` which is not marked with `#[const_trait]` +error: const `impl` for trait `FromResidual` which is not `const` --> $DIR/const-try.rs:15:12 | LL | impl const FromResidual<Error> for TryMe { | ^^^^^^^^^^^^^^^^^^^ this trait is not `const` | - = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` + = note: marking a trait with `const` ensures all default method bodies are `const` = note: adding a non-const method body in the future would be a breaking change -error: const `impl` for trait `Try` which is not marked with `#[const_trait]` +error: const `impl` for trait `Try` which is not `const` --> $DIR/const-try.rs:22:12 | LL | impl const Try for TryMe { | ^^^ this trait is not `const` | - = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` + = note: marking a trait with `const` ensures all default method bodies are `const` = note: adding a non-const method body in the future would be a breaking change error[E0015]: `?` is not allowed on `TryMe` in constant functions diff --git a/tests/ui/consts/const_transmute_type_id4.rs b/tests/ui/consts/const_transmute_type_id4.rs index 22a607e9e0e..0ea75f2a2f4 100644 --- a/tests/ui/consts/const_transmute_type_id4.rs +++ b/tests/ui/consts/const_transmute_type_id4.rs @@ -10,7 +10,7 @@ const _: () = { std::ptr::write(ptr.offset(0), main as fn() as *const ()); } assert!(a == b); - //~^ ERROR: type_id_eq: `TypeId` provenance is not a type id + //~^ ERROR: invalid `TypeId` value }; fn main() {} diff --git a/tests/ui/consts/const_transmute_type_id4.stderr b/tests/ui/consts/const_transmute_type_id4.stderr index b418a79d7f0..b224227cf35 100644 --- a/tests/ui/consts/const_transmute_type_id4.stderr +++ b/tests/ui/consts/const_transmute_type_id4.stderr @@ -1,4 +1,4 @@ -error[E0080]: type_id_eq: `TypeId` provenance is not a type id +error[E0080]: invalid `TypeId` value: not all bytes carry type id metadata --> $DIR/const_transmute_type_id4.rs:12:13 | LL | assert!(a == b); diff --git a/tests/ui/consts/const_transmute_type_id5.rs b/tests/ui/consts/const_transmute_type_id5.rs index 0a9ba01e0dd..ae0429f8dbb 100644 --- a/tests/ui/consts/const_transmute_type_id5.rs +++ b/tests/ui/consts/const_transmute_type_id5.rs @@ -1,12 +1,11 @@ -//! Test that we require an equal TypeId to have the same integer -//! part, even if the provenance matches. +//! Test that we require an equal TypeId to have an integer part that properly +//! reflects the type id hash. #![feature(const_type_id, const_trait_impl, const_cmp)] use std::any::TypeId; const _: () = { - let a = TypeId::of::<()>(); let mut b = TypeId::of::<()>(); unsafe { let ptr = &mut b as *mut TypeId as *mut *const (); @@ -14,8 +13,8 @@ const _: () = { let val = std::ptr::read(ptr); std::ptr::write(ptr.offset(1), val); } - assert!(a == b); - //~^ ERROR: type_id_eq: one of the TypeId arguments is invalid, chunk 1 of the hash does not match the type it represents + assert!(b == b); + //~^ ERROR: invalid `TypeId` value }; fn main() {} diff --git a/tests/ui/consts/const_transmute_type_id5.stderr b/tests/ui/consts/const_transmute_type_id5.stderr index 59823fcc1c9..6205679ebb6 100644 --- a/tests/ui/consts/const_transmute_type_id5.stderr +++ b/tests/ui/consts/const_transmute_type_id5.stderr @@ -1,7 +1,7 @@ -error[E0080]: type_id_eq: one of the TypeId arguments is invalid, chunk 1 of the hash does not match the type it represents - --> $DIR/const_transmute_type_id5.rs:17:13 +error[E0080]: invalid `TypeId` value: the hash does not match the type id metadata + --> $DIR/const_transmute_type_id5.rs:16:13 | -LL | assert!(a == b); +LL | assert!(b == b); | ^^^^^^ evaluation of `_` failed inside this call | note: inside `<TypeId as PartialEq>::eq` diff --git a/tests/ui/consts/issue-94675.rs b/tests/ui/consts/issue-94675.rs index 87c8b04452b..22791e7d15e 100644 --- a/tests/ui/consts/issue-94675.rs +++ b/tests/ui/consts/issue-94675.rs @@ -7,7 +7,9 @@ struct Foo<'a> { impl<'a> Foo<'a> { const fn spam(&mut self, baz: &mut Vec<u32>) { self.bar[0] = baz.len(); - //~^ ERROR: cannot call + //~^ ERROR: `Vec<usize>: [const] Index<_>` is not satisfied + //~| ERROR: `Vec<usize>: [const] Index<usize>` is not satisfied + //~| ERROR: `Vec<usize>: [const] IndexMut<usize>` is not satisfied } } diff --git a/tests/ui/consts/issue-94675.stderr b/tests/ui/consts/issue-94675.stderr index 63a86b45633..608ce0cfef0 100644 --- a/tests/ui/consts/issue-94675.stderr +++ b/tests/ui/consts/issue-94675.stderr @@ -1,13 +1,24 @@ -error[E0015]: cannot call non-const operator in constant functions - --> $DIR/issue-94675.rs:9:17 +error[E0277]: the trait bound `Vec<usize>: [const] Index<_>` is not satisfied + --> $DIR/issue-94675.rs:9:9 | LL | self.bar[0] = baz.len(); - | ^^^ + | ^^^^^^^^^^^ + +error[E0277]: the trait bound `Vec<usize>: [const] IndexMut<usize>` is not satisfied + --> $DIR/issue-94675.rs:9:9 + | +LL | self.bar[0] = baz.len(); + | ^^^^^^^^^^^ + +error[E0277]: the trait bound `Vec<usize>: [const] Index<usize>` is not satisfied + --> $DIR/issue-94675.rs:9:9 + | +LL | self.bar[0] = baz.len(); + | ^^^^^^^^^^^ | -note: impl defined here, but it is not `const` - --> $SRC_DIR/alloc/src/vec/mod.rs:LL:COL - = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants +note: required by a bound in `std::ops::IndexMut::index_mut` + --> $SRC_DIR/core/src/ops/index.rs:LL:COL -error: aborting due to 1 previous error +error: aborting due to 3 previous errors -For more information about this error, try `rustc --explain E0015`. +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/consts/offset_ub.rs b/tests/ui/consts/offset_ub.rs index 8c52586c485..98a50156a94 100644 --- a/tests/ui/consts/offset_ub.rs +++ b/tests/ui/consts/offset_ub.rs @@ -5,17 +5,17 @@ use std::ptr; //@ normalize-stderr: "\d+ bytes" -> "$$BYTES bytes" -pub const BEFORE_START: *const u8 = unsafe { (&0u8 as *const u8).offset(-1) }; //~ ERROR -pub const AFTER_END: *const u8 = unsafe { (&0u8 as *const u8).offset(2) }; //~ ERROR -pub const AFTER_ARRAY: *const u8 = unsafe { [0u8; 100].as_ptr().offset(101) }; //~ ERROR +pub const BEFORE_START: *const u8 = unsafe { (&0u8 as *const u8).offset(-1) }; //~ ERROR: is at the beginning of the allocation +pub const AFTER_END: *const u8 = unsafe { (&0u8 as *const u8).offset(2) }; //~ ERROR: only 1 byte from the end of the allocation +pub const AFTER_ARRAY: *const u8 = unsafe { [0u8; 100].as_ptr().offset(101) }; //~ ERROR: only 100 bytes from the end of the allocation -pub const OVERFLOW: *const u16 = unsafe { [0u16; 1].as_ptr().offset(isize::MAX) }; //~ ERROR -pub const UNDERFLOW: *const u16 = unsafe { [0u16; 1].as_ptr().offset(isize::MIN) }; //~ ERROR +pub const OVERFLOW: *const u16 = unsafe { [0u16; 1].as_ptr().offset(isize::MAX) }; //~ ERROR: does not fit in an `isize` +pub const UNDERFLOW: *const u16 = unsafe { [0u16; 1].as_ptr().offset(isize::MIN) }; //~ ERROR: does not fit in an `isize` pub const OVERFLOW_ADDRESS_SPACE: *const u8 = unsafe { (usize::MAX as *const u8).offset(2) }; //~ ERROR pub const UNDERFLOW_ADDRESS_SPACE: *const u8 = unsafe { (1 as *const u8).offset(-2) }; //~ ERROR -pub const NEGATIVE_OFFSET: *const u8 = unsafe { [0u8; 1].as_ptr().wrapping_offset(-2).offset(-2) }; //~ ERROR +pub const NEGATIVE_OFFSET: *const u8 = unsafe { [0u8; 1].as_ptr().wrapping_offset(-2).offset(-2) }; //~ ERROR: before the beginning of the allocation -pub const ZERO_SIZED_ALLOC: *const u8 = unsafe { [0u8; 0].as_ptr().offset(1) }; //~ ERROR +pub const ZERO_SIZED_ALLOC: *const u8 = unsafe { [0u8; 0].as_ptr().offset(1) }; //~ ERROR: at or beyond the end of the allocation pub const DANGLING: *const u8 = unsafe { ptr::NonNull::<u8>::dangling().as_ptr().offset(4) }; //~ ERROR // Make sure that we don't panic when computing abs(offset*size_of::<T>()) diff --git a/tests/ui/consts/offset_ub.stderr b/tests/ui/consts/offset_ub.stderr index 255583ce91c..d92ca09223d 100644 --- a/tests/ui/consts/offset_ub.stderr +++ b/tests/ui/consts/offset_ub.stderr @@ -40,11 +40,11 @@ error[E0080]: in-bounds pointer arithmetic failed: attempting to offset pointer LL | pub const UNDERFLOW_ADDRESS_SPACE: *const u8 = unsafe { (1 as *const u8).offset(-2) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `UNDERFLOW_ADDRESS_SPACE` failed here -error[E0080]: in-bounds pointer arithmetic failed: attempting to offset pointer by -$BYTES bytes, but got ALLOC3-0x2 which is only $BYTES bytes from the beginning of the allocation +error[E0080]: in-bounds pointer arithmetic failed: attempting to offset pointer by -$BYTES bytes, but got ALLOC3-0x2 which points to before the beginning of the allocation --> $DIR/offset_ub.rs:16:49 | -LL | pub const NEGATIVE_OFFSET: *const u8 = unsafe { [0u8; 1].as_ptr().wrapping_offset(-2).offset(-2) }; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `NEGATIVE_OFFSET` failed here +LL | ...*const u8 = unsafe { [0u8; 1].as_ptr().wrapping_offset(-2).offset(-2) }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `NEGATIVE_OFFSET` failed here error[E0080]: in-bounds pointer arithmetic failed: attempting to offset pointer by 1 byte, but got ALLOC4 which is at or beyond the end of the allocation of size $BYTES bytes --> $DIR/offset_ub.rs:18:50 diff --git a/tests/ui/consts/rustc-impl-const-stability.stderr b/tests/ui/consts/rustc-impl-const-stability.stderr index a3ef4031a13..55c08539688 100644 --- a/tests/ui/consts/rustc-impl-const-stability.stderr +++ b/tests/ui/consts/rustc-impl-const-stability.stderr @@ -1,10 +1,10 @@ -error: const `impl` for trait `Debug` which is not marked with `#[const_trait]` +error: const `impl` for trait `Debug` which is not `const` --> $DIR/rustc-impl-const-stability.rs:15:12 | LL | impl const std::fmt::Debug for Data { | ^^^^^^^^^^^^^^^ this trait is not `const` | - = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` + = note: marking a trait with `const` ensures all default method bodies are `const` = note: adding a non-const method body in the future would be a breaking change error: aborting due to 1 previous error diff --git a/tests/ui/coroutine/clone-impl.rs b/tests/ui/coroutine/clone-impl.rs index b07fad18aee..e528f031d52 100644 --- a/tests/ui/coroutine/clone-impl.rs +++ b/tests/ui/coroutine/clone-impl.rs @@ -38,39 +38,40 @@ fn test2() { check_clone(&gen_copy_1); } -fn test3() { +fn test3_upvars() { let clonable_0: Vec<u32> = Vec::new(); let gen_clone_0 = #[coroutine] move || { - let v = vec!['a']; - yield; - drop(v); drop(clonable_0); }; check_copy(&gen_clone_0); //~^ ERROR the trait bound `Vec<u32>: Copy` is not satisfied - //~| ERROR the trait bound `Vec<char>: Copy` is not satisfied check_clone(&gen_clone_0); } +fn test3_witness() { + let gen_clone_1 = #[coroutine] + move || { + let v = vec!['a']; + yield; + drop(v); + }; + check_copy(&gen_clone_1); + //~^ ERROR the trait bound `Vec<char>: Copy` is not satisfied + check_clone(&gen_clone_1); +} + fn test4() { let clonable_1: Vec<u32> = Vec::new(); let gen_clone_1 = #[coroutine] move || { - let v = vec!['a']; - /* - let n = NonClone; - drop(n); - */ yield; let n = NonClone; drop(n); - drop(v); drop(clonable_1); }; check_copy(&gen_clone_1); //~^ ERROR the trait bound `Vec<u32>: Copy` is not satisfied - //~| ERROR the trait bound `Vec<char>: Copy` is not satisfied check_clone(&gen_clone_1); } diff --git a/tests/ui/coroutine/clone-impl.stderr b/tests/ui/coroutine/clone-impl.stderr index ed933fe784e..714e5aa3d9e 100644 --- a/tests/ui/coroutine/clone-impl.stderr +++ b/tests/ui/coroutine/clone-impl.stderr @@ -1,104 +1,59 @@ error[E0277]: the trait bound `Vec<u32>: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:44:5: 44:12}` - --> $DIR/clone-impl.rs:50:5 + --> $DIR/clone-impl.rs:47:16 | LL | move || { | ------- within this `{coroutine@$DIR/clone-impl.rs:44:5: 44:12}` ... LL | check_copy(&gen_clone_0); - | ^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:44:5: 44:12}`, the trait `Copy` is not implemented for `Vec<u32>` + | ^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:44:5: 44:12}`, the trait `Copy` is not implemented for `Vec<u32>` | note: captured value does not implement `Copy` - --> $DIR/clone-impl.rs:48:14 + --> $DIR/clone-impl.rs:45:14 | LL | drop(clonable_0); | ^^^^^^^^^^ has type `Vec<u32>` which does not implement `Copy` note: required by a bound in `check_copy` - --> $DIR/clone-impl.rs:90:18 + --> $DIR/clone-impl.rs:91:18 | LL | fn check_copy<T: Copy>(_x: &T) {} | ^^^^ required by this bound in `check_copy` -error[E0277]: the trait bound `Vec<char>: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:44:5: 44:12}` - --> $DIR/clone-impl.rs:50:5 +error[E0277]: the trait bound `Vec<u32>: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:67:5: 67:12}` + --> $DIR/clone-impl.rs:73:16 | LL | move || { - | ------- within this `{coroutine@$DIR/clone-impl.rs:44:5: 44:12}` -... -LL | check_copy(&gen_clone_0); - | ^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:44:5: 44:12}`, the trait `Copy` is not implemented for `Vec<char>` - | -note: coroutine does not implement `Copy` as this value is used across a yield - --> $DIR/clone-impl.rs:46:9 - | -LL | let v = vec!['a']; - | - has type `Vec<char>` which does not implement `Copy` -LL | yield; - | ^^^^^ yield occurs here, with `v` maybe used later -note: required by a bound in `check_copy` - --> $DIR/clone-impl.rs:90:18 - | -LL | fn check_copy<T: Copy>(_x: &T) {} - | ^^^^ required by this bound in `check_copy` - -error[E0277]: the trait bound `Vec<u32>: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:59:5: 59:12}` - --> $DIR/clone-impl.rs:71:5 - | -LL | move || { - | ------- within this `{coroutine@$DIR/clone-impl.rs:59:5: 59:12}` + | ------- within this `{coroutine@$DIR/clone-impl.rs:67:5: 67:12}` ... LL | check_copy(&gen_clone_1); - | ^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:59:5: 59:12}`, the trait `Copy` is not implemented for `Vec<u32>` + | ^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:67:5: 67:12}`, the trait `Copy` is not implemented for `Vec<u32>` | note: captured value does not implement `Copy` - --> $DIR/clone-impl.rs:69:14 + --> $DIR/clone-impl.rs:71:14 | LL | drop(clonable_1); | ^^^^^^^^^^ has type `Vec<u32>` which does not implement `Copy` note: required by a bound in `check_copy` - --> $DIR/clone-impl.rs:90:18 - | -LL | fn check_copy<T: Copy>(_x: &T) {} - | ^^^^ required by this bound in `check_copy` - -error[E0277]: the trait bound `Vec<char>: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:59:5: 59:12}` - --> $DIR/clone-impl.rs:71:5 - | -LL | move || { - | ------- within this `{coroutine@$DIR/clone-impl.rs:59:5: 59:12}` -... -LL | check_copy(&gen_clone_1); - | ^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:59:5: 59:12}`, the trait `Copy` is not implemented for `Vec<char>` - | -note: coroutine does not implement `Copy` as this value is used across a yield - --> $DIR/clone-impl.rs:65:9 - | -LL | let v = vec!['a']; - | - has type `Vec<char>` which does not implement `Copy` -... -LL | yield; - | ^^^^^ yield occurs here, with `v` maybe used later -note: required by a bound in `check_copy` - --> $DIR/clone-impl.rs:90:18 + --> $DIR/clone-impl.rs:91:18 | LL | fn check_copy<T: Copy>(_x: &T) {} | ^^^^ required by this bound in `check_copy` -error[E0277]: the trait bound `NonClone: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:80:5: 80:12}` - --> $DIR/clone-impl.rs:84:5 +error[E0277]: the trait bound `NonClone: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:81:5: 81:12}` + --> $DIR/clone-impl.rs:85:16 | LL | move || { - | ------- within this `{coroutine@$DIR/clone-impl.rs:80:5: 80:12}` + | ------- within this `{coroutine@$DIR/clone-impl.rs:81:5: 81:12}` ... LL | check_copy(&gen_non_clone); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:80:5: 80:12}`, the trait `Copy` is not implemented for `NonClone` + | ^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:81:5: 81:12}`, the trait `Copy` is not implemented for `NonClone` | note: captured value does not implement `Copy` - --> $DIR/clone-impl.rs:82:14 + --> $DIR/clone-impl.rs:83:14 | LL | drop(non_clonable); | ^^^^^^^^^^^^ has type `NonClone` which does not implement `Copy` note: required by a bound in `check_copy` - --> $DIR/clone-impl.rs:90:18 + --> $DIR/clone-impl.rs:91:18 | LL | fn check_copy<T: Copy>(_x: &T) {} | ^^^^ required by this bound in `check_copy` @@ -108,22 +63,22 @@ LL + #[derive(Copy)] LL | struct NonClone; | -error[E0277]: the trait bound `NonClone: Clone` is not satisfied in `{coroutine@$DIR/clone-impl.rs:80:5: 80:12}` - --> $DIR/clone-impl.rs:86:5 +error[E0277]: the trait bound `NonClone: Clone` is not satisfied in `{coroutine@$DIR/clone-impl.rs:81:5: 81:12}` + --> $DIR/clone-impl.rs:87:17 | LL | move || { - | ------- within this `{coroutine@$DIR/clone-impl.rs:80:5: 80:12}` + | ------- within this `{coroutine@$DIR/clone-impl.rs:81:5: 81:12}` ... LL | check_clone(&gen_non_clone); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:80:5: 80:12}`, the trait `Clone` is not implemented for `NonClone` + | ^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:81:5: 81:12}`, the trait `Clone` is not implemented for `NonClone` | note: captured value does not implement `Clone` - --> $DIR/clone-impl.rs:82:14 + --> $DIR/clone-impl.rs:83:14 | LL | drop(non_clonable); | ^^^^^^^^^^^^ has type `NonClone` which does not implement `Clone` note: required by a bound in `check_clone` - --> $DIR/clone-impl.rs:91:19 + --> $DIR/clone-impl.rs:92:19 | LL | fn check_clone<T: Clone>(_x: &T) {} | ^^^^^ required by this bound in `check_clone` @@ -133,6 +88,28 @@ LL + #[derive(Clone)] LL | struct NonClone; | -error: aborting due to 6 previous errors +error[E0277]: the trait bound `Vec<char>: Copy` is not satisfied in `{coroutine@$DIR/clone-impl.rs:54:5: 54:12}` + --> $DIR/clone-impl.rs:59:5 + | +LL | move || { + | ------- within this `{coroutine@$DIR/clone-impl.rs:54:5: 54:12}` +... +LL | check_copy(&gen_clone_1); + | ^^^^^^^^^^^^^^^^^^^^^^^^ within `{coroutine@$DIR/clone-impl.rs:54:5: 54:12}`, the trait `Copy` is not implemented for `Vec<char>` + | +note: coroutine does not implement `Copy` as this value is used across a yield + --> $DIR/clone-impl.rs:56:9 + | +LL | let v = vec!['a']; + | - has type `Vec<char>` which does not implement `Copy` +LL | yield; + | ^^^^^ yield occurs here, with `v` maybe used later +note: required by a bound in `check_copy` + --> $DIR/clone-impl.rs:91:18 + | +LL | fn check_copy<T: Copy>(_x: &T) {} + | ^^^^ required by this bound in `check_copy` + +error: aborting due to 5 previous errors For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/coroutine/print/coroutine-print-verbose-3.stderr b/tests/ui/coroutine/print/coroutine-print-verbose-3.stderr index 2f9f20cf1ff..4a1e5b078a8 100644 --- a/tests/ui/coroutine/print/coroutine-print-verbose-3.stderr +++ b/tests/ui/coroutine/print/coroutine-print-verbose-3.stderr @@ -11,7 +11,7 @@ LL | | }; | |_____^ expected `()`, found coroutine | = note: expected unit type `()` - found coroutine `{main::{closure#0} upvar_tys=?4t resume_ty=() yield_ty=i32 return_ty=&'?1 str witness=?6t}` + found coroutine `{main::{closure#0} upvar_tys=?4t resume_ty=() yield_ty=i32 return_ty=&'?1 str witness={main::{closure#0}}}` error: aborting due to 1 previous error diff --git a/tests/ui/coverage-attr/bad-attr-ice.feat.stderr b/tests/ui/coverage-attr/bad-attr-ice.feat.stderr index dc84394fe3c..5a003af42da 100644 --- a/tests/ui/coverage-attr/bad-attr-ice.feat.stderr +++ b/tests/ui/coverage-attr/bad-attr-ice.feat.stderr @@ -1,10 +1,10 @@ -error: malformed `coverage` attribute input +error[E0539]: malformed `coverage` attribute input --> $DIR/bad-attr-ice.rs:11:1 | LL | #[coverage] - | ^^^^^^^^^^^ + | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL | #[coverage(off)] | +++++ @@ -13,3 +13,4 @@ LL | #[coverage(on)] error: aborting due to 1 previous error +For more information about this error, try `rustc --explain E0539`. diff --git a/tests/ui/coverage-attr/bad-attr-ice.nofeat.stderr b/tests/ui/coverage-attr/bad-attr-ice.nofeat.stderr index 49b8974bfdf..4501e5e9dc8 100644 --- a/tests/ui/coverage-attr/bad-attr-ice.nofeat.stderr +++ b/tests/ui/coverage-attr/bad-attr-ice.nofeat.stderr @@ -1,26 +1,27 @@ -error: malformed `coverage` attribute input +error[E0658]: the `#[coverage]` attribute is an experimental feature --> $DIR/bad-attr-ice.rs:11:1 | LL | #[coverage] | ^^^^^^^^^^^ | -help: the following are the possible correct uses - | -LL | #[coverage(off)] - | +++++ -LL | #[coverage(on)] - | ++++ + = note: see issue #84605 <https://github.com/rust-lang/rust/issues/84605> for more information + = help: add `#![feature(coverage_attribute)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date -error[E0658]: the `#[coverage]` attribute is an experimental feature +error[E0539]: malformed `coverage` attribute input --> $DIR/bad-attr-ice.rs:11:1 | LL | #[coverage] - | ^^^^^^^^^^^ + | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | - = note: see issue #84605 <https://github.com/rust-lang/rust/issues/84605> for more information - = help: add `#![feature(coverage_attribute)]` to the crate attributes to enable - = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date +help: try changing it to one of the following valid forms of the attribute + | +LL | #[coverage(off)] + | +++++ +LL | #[coverage(on)] + | ++++ error: aborting due to 2 previous errors -For more information about this error, try `rustc --explain E0658`. +Some errors have detailed explanations: E0539, E0658. +For more information about an error, try `rustc --explain E0539`. diff --git a/tests/ui/coverage-attr/bad-syntax.stderr b/tests/ui/coverage-attr/bad-syntax.stderr index fa500b54209..927f61da08d 100644 --- a/tests/ui/coverage-attr/bad-syntax.stderr +++ b/tests/ui/coverage-attr/bad-syntax.stderr @@ -1,23 +1,59 @@ -error: malformed `coverage` attribute input +error: expected identifier, found `,` + --> $DIR/bad-syntax.rs:44:12 + | +LL | #[coverage(,off)] + | ^ expected identifier + | +help: remove this comma + | +LL - #[coverage(,off)] +LL + #[coverage(off)] + | + +error: multiple `coverage` attributes + --> $DIR/bad-syntax.rs:9:1 + | +LL | #[coverage(off)] + | ^^^^^^^^^^^^^^^^ help: remove this attribute + | +note: attribute also specified here + --> $DIR/bad-syntax.rs:10:1 + | +LL | #[coverage(off)] + | ^^^^^^^^^^^^^^^^ + +error: multiple `coverage` attributes + --> $DIR/bad-syntax.rs:13:1 + | +LL | #[coverage(off)] + | ^^^^^^^^^^^^^^^^ help: remove this attribute + | +note: attribute also specified here + --> $DIR/bad-syntax.rs:14:1 + | +LL | #[coverage(on)] + | ^^^^^^^^^^^^^^^ + +error[E0539]: malformed `coverage` attribute input --> $DIR/bad-syntax.rs:17:1 | LL | #[coverage] - | ^^^^^^^^^^^ + | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL | #[coverage(off)] | +++++ LL | #[coverage(on)] | ++++ -error: malformed `coverage` attribute input +error[E0539]: malformed `coverage` attribute input --> $DIR/bad-syntax.rs:20:1 | LL | #[coverage = true] - | ^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage = true] LL + #[coverage(off)] @@ -26,26 +62,30 @@ LL - #[coverage = true] LL + #[coverage(on)] | -error: malformed `coverage` attribute input +error[E0805]: malformed `coverage` attribute input --> $DIR/bad-syntax.rs:23:1 | LL | #[coverage()] - | ^^^^^^^^^^^^^ + | ^^^^^^^^^^--^ + | | + | expected a single argument here | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL | #[coverage(off)] | +++ LL | #[coverage(on)] | ++ -error: malformed `coverage` attribute input +error[E0805]: malformed `coverage` attribute input --> $DIR/bad-syntax.rs:26:1 | LL | #[coverage(off, off)] - | ^^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^----------^ + | | + | expected a single argument here | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage(off, off)] LL + #[coverage(off)] @@ -54,13 +94,15 @@ LL - #[coverage(off, off)] LL + #[coverage(on)] | -error: malformed `coverage` attribute input +error[E0805]: malformed `coverage` attribute input --> $DIR/bad-syntax.rs:29:1 | LL | #[coverage(off, on)] - | ^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^---------^ + | | + | expected a single argument here | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage(off, on)] LL + #[coverage(off)] @@ -69,13 +111,15 @@ LL - #[coverage(off, on)] LL + #[coverage(on)] | -error: malformed `coverage` attribute input +error[E0539]: malformed `coverage` attribute input --> $DIR/bad-syntax.rs:32:1 | LL | #[coverage(bogus)] - | ^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^-----^^ + | | + | valid arguments are `on` or `off` | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage(bogus)] LL + #[coverage(off)] @@ -84,13 +128,15 @@ LL - #[coverage(bogus)] LL + #[coverage(on)] | -error: malformed `coverage` attribute input +error[E0805]: malformed `coverage` attribute input --> $DIR/bad-syntax.rs:35:1 | LL | #[coverage(bogus, off)] - | ^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^------------^ + | | + | expected a single argument here | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage(bogus, off)] LL + #[coverage(off)] @@ -99,13 +145,15 @@ LL - #[coverage(bogus, off)] LL + #[coverage(on)] | -error: malformed `coverage` attribute input +error[E0805]: malformed `coverage` attribute input --> $DIR/bad-syntax.rs:38:1 | LL | #[coverage(off, bogus)] - | ^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^------------^ + | | + | expected a single argument here | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage(off, bogus)] LL + #[coverage(off)] @@ -114,41 +162,7 @@ LL - #[coverage(off, bogus)] LL + #[coverage(on)] | -error: expected identifier, found `,` - --> $DIR/bad-syntax.rs:44:12 - | -LL | #[coverage(,off)] - | ^ expected identifier - | -help: remove this comma - | -LL - #[coverage(,off)] -LL + #[coverage(off)] - | - -error: multiple `coverage` attributes - --> $DIR/bad-syntax.rs:9:1 - | -LL | #[coverage(off)] - | ^^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/bad-syntax.rs:10:1 - | -LL | #[coverage(off)] - | ^^^^^^^^^^^^^^^^ - -error: multiple `coverage` attributes - --> $DIR/bad-syntax.rs:13:1 - | -LL | #[coverage(off)] - | ^^^^^^^^^^^^^^^^ help: remove this attribute - | -note: attribute also specified here - --> $DIR/bad-syntax.rs:14:1 - | -LL | #[coverage(on)] - | ^^^^^^^^^^^^^^^ - error: aborting due to 11 previous errors +Some errors have detailed explanations: E0539, E0805. +For more information about an error, try `rustc --explain E0539`. diff --git a/tests/ui/coverage-attr/name-value.rs b/tests/ui/coverage-attr/name-value.rs index ffd9afe2ce1..8171dbbf692 100644 --- a/tests/ui/coverage-attr/name-value.rs +++ b/tests/ui/coverage-attr/name-value.rs @@ -20,7 +20,6 @@ mod my_mod_inner { #[coverage = "off"] //~^ ERROR malformed `coverage` attribute input -//~| ERROR [E0788] struct MyStruct; #[coverage = "off"] @@ -28,22 +27,18 @@ struct MyStruct; impl MyStruct { #[coverage = "off"] //~^ ERROR malformed `coverage` attribute input - //~| ERROR [E0788] const X: u32 = 7; } #[coverage = "off"] //~^ ERROR malformed `coverage` attribute input -//~| ERROR [E0788] trait MyTrait { #[coverage = "off"] //~^ ERROR malformed `coverage` attribute input - //~| ERROR [E0788] const X: u32; #[coverage = "off"] //~^ ERROR malformed `coverage` attribute input - //~| ERROR [E0788] type T; } @@ -52,12 +47,10 @@ trait MyTrait { impl MyTrait for MyStruct { #[coverage = "off"] //~^ ERROR malformed `coverage` attribute input - //~| ERROR [E0788] const X: u32 = 8; #[coverage = "off"] //~^ ERROR malformed `coverage` attribute input - //~| ERROR [E0788] type T = (); } diff --git a/tests/ui/coverage-attr/name-value.stderr b/tests/ui/coverage-attr/name-value.stderr index f24db78415e..a838ec5df8e 100644 --- a/tests/ui/coverage-attr/name-value.stderr +++ b/tests/ui/coverage-attr/name-value.stderr @@ -1,10 +1,10 @@ -error: malformed `coverage` attribute input +error[E0539]: malformed `coverage` attribute input --> $DIR/name-value.rs:12:1 | LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage = "off"] LL + #[coverage(off)] @@ -13,28 +13,28 @@ LL - #[coverage = "off"] LL + #[coverage(on)] | -error: malformed `coverage` attribute input +error[E0539]: malformed `coverage` attribute input --> $DIR/name-value.rs:17:5 | LL | #![coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #![coverage = "off"] -LL + #![coverage(off)] +LL + #[coverage(off)] | LL - #![coverage = "off"] -LL + #![coverage(on)] +LL + #[coverage(on)] | -error: malformed `coverage` attribute input +error[E0539]: malformed `coverage` attribute input --> $DIR/name-value.rs:21:1 | LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage = "off"] LL + #[coverage(off)] @@ -43,13 +43,13 @@ LL - #[coverage = "off"] LL + #[coverage(on)] | -error: malformed `coverage` attribute input - --> $DIR/name-value.rs:26:1 +error[E0539]: malformed `coverage` attribute input + --> $DIR/name-value.rs:25:1 | LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage = "off"] LL + #[coverage(off)] @@ -58,13 +58,13 @@ LL - #[coverage = "off"] LL + #[coverage(on)] | -error: malformed `coverage` attribute input - --> $DIR/name-value.rs:29:5 +error[E0539]: malformed `coverage` attribute input + --> $DIR/name-value.rs:28:5 | LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage = "off"] LL + #[coverage(off)] @@ -73,13 +73,13 @@ LL - #[coverage = "off"] LL + #[coverage(on)] | -error: malformed `coverage` attribute input - --> $DIR/name-value.rs:35:1 +error[E0539]: malformed `coverage` attribute input + --> $DIR/name-value.rs:33:1 | LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage = "off"] LL + #[coverage(off)] @@ -88,13 +88,13 @@ LL - #[coverage = "off"] LL + #[coverage(on)] | -error: malformed `coverage` attribute input - --> $DIR/name-value.rs:39:5 +error[E0539]: malformed `coverage` attribute input + --> $DIR/name-value.rs:36:5 | LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage = "off"] LL + #[coverage(off)] @@ -103,13 +103,13 @@ LL - #[coverage = "off"] LL + #[coverage(on)] | -error: malformed `coverage` attribute input - --> $DIR/name-value.rs:44:5 +error[E0539]: malformed `coverage` attribute input + --> $DIR/name-value.rs:40:5 | LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage = "off"] LL + #[coverage(off)] @@ -118,13 +118,13 @@ LL - #[coverage = "off"] LL + #[coverage(on)] | -error: malformed `coverage` attribute input - --> $DIR/name-value.rs:50:1 +error[E0539]: malformed `coverage` attribute input + --> $DIR/name-value.rs:45:1 | LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage = "off"] LL + #[coverage(off)] @@ -133,13 +133,13 @@ LL - #[coverage = "off"] LL + #[coverage(on)] | -error: malformed `coverage` attribute input - --> $DIR/name-value.rs:53:5 +error[E0539]: malformed `coverage` attribute input + --> $DIR/name-value.rs:48:5 | LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage = "off"] LL + #[coverage(off)] @@ -148,13 +148,13 @@ LL - #[coverage = "off"] LL + #[coverage(on)] | -error: malformed `coverage` attribute input - --> $DIR/name-value.rs:58:5 +error[E0539]: malformed `coverage` attribute input + --> $DIR/name-value.rs:52:5 | LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage = "off"] LL + #[coverage(off)] @@ -163,13 +163,13 @@ LL - #[coverage = "off"] LL + #[coverage(on)] | -error: malformed `coverage` attribute input - --> $DIR/name-value.rs:64:1 +error[E0539]: malformed `coverage` attribute input + --> $DIR/name-value.rs:57:1 | LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage = "off"] LL + #[coverage(off)] @@ -178,87 +178,6 @@ LL - #[coverage = "off"] LL + #[coverage(on)] | -error[E0788]: coverage attribute not allowed here - --> $DIR/name-value.rs:21:1 - | -LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ -... -LL | struct MyStruct; - | ---------------- not a function, impl block, or module - | - = help: coverage attribute can be applied to a function (with body), impl block, or module - -error[E0788]: coverage attribute not allowed here - --> $DIR/name-value.rs:35:1 - | -LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ -... -LL | / trait MyTrait { -LL | | #[coverage = "off"] -... | -LL | | type T; -LL | | } - | |_- not a function, impl block, or module - | - = help: coverage attribute can be applied to a function (with body), impl block, or module - -error[E0788]: coverage attribute not allowed here - --> $DIR/name-value.rs:39:5 - | -LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ -... -LL | const X: u32; - | ------------- not a function, impl block, or module - | - = help: coverage attribute can be applied to a function (with body), impl block, or module - -error[E0788]: coverage attribute not allowed here - --> $DIR/name-value.rs:44:5 - | -LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ -... -LL | type T; - | ------- not a function, impl block, or module - | - = help: coverage attribute can be applied to a function (with body), impl block, or module - -error[E0788]: coverage attribute not allowed here - --> $DIR/name-value.rs:29:5 - | -LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ -... -LL | const X: u32 = 7; - | ----------------- not a function, impl block, or module - | - = help: coverage attribute can be applied to a function (with body), impl block, or module - -error[E0788]: coverage attribute not allowed here - --> $DIR/name-value.rs:53:5 - | -LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ -... -LL | const X: u32 = 8; - | ----------------- not a function, impl block, or module - | - = help: coverage attribute can be applied to a function (with body), impl block, or module - -error[E0788]: coverage attribute not allowed here - --> $DIR/name-value.rs:58:5 - | -LL | #[coverage = "off"] - | ^^^^^^^^^^^^^^^^^^^ -... -LL | type T = (); - | ------------ not a function, impl block, or module - | - = help: coverage attribute can be applied to a function (with body), impl block, or module - -error: aborting due to 19 previous errors +error: aborting due to 12 previous errors -For more information about this error, try `rustc --explain E0788`. +For more information about this error, try `rustc --explain E0539`. diff --git a/tests/ui/coverage-attr/subword.stderr b/tests/ui/coverage-attr/subword.stderr index a5d1a492181..32a09a10c84 100644 --- a/tests/ui/coverage-attr/subword.stderr +++ b/tests/ui/coverage-attr/subword.stderr @@ -1,10 +1,12 @@ -error: malformed `coverage` attribute input +error[E0539]: malformed `coverage` attribute input --> $DIR/subword.rs:8:1 | LL | #[coverage(yes(milord))] - | ^^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^-----------^^ + | | + | valid arguments are `on` or `off` | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage(yes(milord))] LL + #[coverage(off)] @@ -13,13 +15,15 @@ LL - #[coverage(yes(milord))] LL + #[coverage(on)] | -error: malformed `coverage` attribute input +error[E0539]: malformed `coverage` attribute input --> $DIR/subword.rs:11:1 | LL | #[coverage(no(milord))] - | ^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^----------^^ + | | + | valid arguments are `on` or `off` | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage(no(milord))] LL + #[coverage(off)] @@ -28,13 +32,15 @@ LL - #[coverage(no(milord))] LL + #[coverage(on)] | -error: malformed `coverage` attribute input +error[E0539]: malformed `coverage` attribute input --> $DIR/subword.rs:14:1 | LL | #[coverage(yes = "milord")] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^--------------^^ + | | + | valid arguments are `on` or `off` | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage(yes = "milord")] LL + #[coverage(off)] @@ -43,13 +49,15 @@ LL - #[coverage(yes = "milord")] LL + #[coverage(on)] | -error: malformed `coverage` attribute input +error[E0539]: malformed `coverage` attribute input --> $DIR/subword.rs:17:1 | LL | #[coverage(no = "milord")] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^^^^^^^^^-------------^^ + | | + | valid arguments are `on` or `off` | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL - #[coverage(no = "milord")] LL + #[coverage(off)] @@ -60,3 +68,4 @@ LL + #[coverage(on)] error: aborting due to 4 previous errors +For more information about this error, try `rustc --explain E0539`. diff --git a/tests/ui/coverage-attr/word-only.rs b/tests/ui/coverage-attr/word-only.rs index d0f743938f3..81bd558b8b0 100644 --- a/tests/ui/coverage-attr/word-only.rs +++ b/tests/ui/coverage-attr/word-only.rs @@ -20,7 +20,6 @@ mod my_mod_inner { #[coverage] //~^ ERROR malformed `coverage` attribute input -//~| ERROR [E0788] struct MyStruct; #[coverage] @@ -28,22 +27,18 @@ struct MyStruct; impl MyStruct { #[coverage] //~^ ERROR malformed `coverage` attribute input - //~| ERROR [E0788] const X: u32 = 7; } #[coverage] //~^ ERROR malformed `coverage` attribute input -//~| ERROR [E0788] trait MyTrait { #[coverage] //~^ ERROR malformed `coverage` attribute input - //~| ERROR [E0788] const X: u32; #[coverage] //~^ ERROR malformed `coverage` attribute input - //~| ERROR [E0788] type T; } @@ -52,12 +47,10 @@ trait MyTrait { impl MyTrait for MyStruct { #[coverage] //~^ ERROR malformed `coverage` attribute input - //~| ERROR [E0788] const X: u32 = 8; #[coverage] //~^ ERROR malformed `coverage` attribute input - //~| ERROR [E0788] type T = (); } diff --git a/tests/ui/coverage-attr/word-only.stderr b/tests/ui/coverage-attr/word-only.stderr index 2773db9c857..dd161360a5c 100644 --- a/tests/ui/coverage-attr/word-only.stderr +++ b/tests/ui/coverage-attr/word-only.stderr @@ -1,240 +1,161 @@ -error: malformed `coverage` attribute input +error[E0539]: malformed `coverage` attribute input --> $DIR/word-only.rs:12:1 | LL | #[coverage] - | ^^^^^^^^^^^ + | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL | #[coverage(off)] | +++++ LL | #[coverage(on)] | ++++ -error: malformed `coverage` attribute input +error[E0539]: malformed `coverage` attribute input --> $DIR/word-only.rs:17:5 | LL | #![coverage] - | ^^^^^^^^^^^^ + | ^^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute + | +LL - #![coverage] +LL + #[coverage(off)] + | +LL - #![coverage] +LL + #[coverage(on)] | -LL | #![coverage(off)] - | +++++ -LL | #![coverage(on)] - | ++++ -error: malformed `coverage` attribute input +error[E0539]: malformed `coverage` attribute input --> $DIR/word-only.rs:21:1 | LL | #[coverage] - | ^^^^^^^^^^^ + | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL | #[coverage(off)] | +++++ LL | #[coverage(on)] | ++++ -error: malformed `coverage` attribute input - --> $DIR/word-only.rs:26:1 +error[E0539]: malformed `coverage` attribute input + --> $DIR/word-only.rs:25:1 | LL | #[coverage] - | ^^^^^^^^^^^ + | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL | #[coverage(off)] | +++++ LL | #[coverage(on)] | ++++ -error: malformed `coverage` attribute input - --> $DIR/word-only.rs:29:5 +error[E0539]: malformed `coverage` attribute input + --> $DIR/word-only.rs:28:5 | LL | #[coverage] - | ^^^^^^^^^^^ + | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL | #[coverage(off)] | +++++ LL | #[coverage(on)] | ++++ -error: malformed `coverage` attribute input - --> $DIR/word-only.rs:35:1 +error[E0539]: malformed `coverage` attribute input + --> $DIR/word-only.rs:33:1 | LL | #[coverage] - | ^^^^^^^^^^^ + | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL | #[coverage(off)] | +++++ LL | #[coverage(on)] | ++++ -error: malformed `coverage` attribute input - --> $DIR/word-only.rs:39:5 +error[E0539]: malformed `coverage` attribute input + --> $DIR/word-only.rs:36:5 | LL | #[coverage] - | ^^^^^^^^^^^ + | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL | #[coverage(off)] | +++++ LL | #[coverage(on)] | ++++ -error: malformed `coverage` attribute input - --> $DIR/word-only.rs:44:5 +error[E0539]: malformed `coverage` attribute input + --> $DIR/word-only.rs:40:5 | LL | #[coverage] - | ^^^^^^^^^^^ + | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL | #[coverage(off)] | +++++ LL | #[coverage(on)] | ++++ -error: malformed `coverage` attribute input - --> $DIR/word-only.rs:50:1 +error[E0539]: malformed `coverage` attribute input + --> $DIR/word-only.rs:45:1 | LL | #[coverage] - | ^^^^^^^^^^^ + | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL | #[coverage(off)] | +++++ LL | #[coverage(on)] | ++++ -error: malformed `coverage` attribute input - --> $DIR/word-only.rs:53:5 +error[E0539]: malformed `coverage` attribute input + --> $DIR/word-only.rs:48:5 | LL | #[coverage] - | ^^^^^^^^^^^ + | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL | #[coverage(off)] | +++++ LL | #[coverage(on)] | ++++ -error: malformed `coverage` attribute input - --> $DIR/word-only.rs:58:5 +error[E0539]: malformed `coverage` attribute input + --> $DIR/word-only.rs:52:5 | LL | #[coverage] - | ^^^^^^^^^^^ + | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL | #[coverage(off)] | +++++ LL | #[coverage(on)] | ++++ -error: malformed `coverage` attribute input - --> $DIR/word-only.rs:64:1 +error[E0539]: malformed `coverage` attribute input + --> $DIR/word-only.rs:57:1 | LL | #[coverage] - | ^^^^^^^^^^^ + | ^^^^^^^^^^^ this attribute is only valid with either `on` or `off` as an argument | -help: the following are the possible correct uses +help: try changing it to one of the following valid forms of the attribute | LL | #[coverage(off)] | +++++ LL | #[coverage(on)] | ++++ -error[E0788]: coverage attribute not allowed here - --> $DIR/word-only.rs:21:1 - | -LL | #[coverage] - | ^^^^^^^^^^^ -... -LL | struct MyStruct; - | ---------------- not a function, impl block, or module - | - = help: coverage attribute can be applied to a function (with body), impl block, or module - -error[E0788]: coverage attribute not allowed here - --> $DIR/word-only.rs:35:1 - | -LL | #[coverage] - | ^^^^^^^^^^^ -... -LL | / trait MyTrait { -LL | | #[coverage] -... | -LL | | type T; -LL | | } - | |_- not a function, impl block, or module - | - = help: coverage attribute can be applied to a function (with body), impl block, or module - -error[E0788]: coverage attribute not allowed here - --> $DIR/word-only.rs:39:5 - | -LL | #[coverage] - | ^^^^^^^^^^^ -... -LL | const X: u32; - | ------------- not a function, impl block, or module - | - = help: coverage attribute can be applied to a function (with body), impl block, or module - -error[E0788]: coverage attribute not allowed here - --> $DIR/word-only.rs:44:5 - | -LL | #[coverage] - | ^^^^^^^^^^^ -... -LL | type T; - | ------- not a function, impl block, or module - | - = help: coverage attribute can be applied to a function (with body), impl block, or module - -error[E0788]: coverage attribute not allowed here - --> $DIR/word-only.rs:29:5 - | -LL | #[coverage] - | ^^^^^^^^^^^ -... -LL | const X: u32 = 7; - | ----------------- not a function, impl block, or module - | - = help: coverage attribute can be applied to a function (with body), impl block, or module - -error[E0788]: coverage attribute not allowed here - --> $DIR/word-only.rs:53:5 - | -LL | #[coverage] - | ^^^^^^^^^^^ -... -LL | const X: u32 = 8; - | ----------------- not a function, impl block, or module - | - = help: coverage attribute can be applied to a function (with body), impl block, or module - -error[E0788]: coverage attribute not allowed here - --> $DIR/word-only.rs:58:5 - | -LL | #[coverage] - | ^^^^^^^^^^^ -... -LL | type T = (); - | ------------ not a function, impl block, or module - | - = help: coverage attribute can be applied to a function (with body), impl block, or module - -error: aborting due to 19 previous errors +error: aborting due to 12 previous errors -For more information about this error, try `rustc --explain E0788`. +For more information about this error, try `rustc --explain E0539`. diff --git a/tests/ui/deduplicate-diagnostics.deduplicate.stderr b/tests/ui/diagnostic-flags/deduplicate-diagnostics.deduplicate.stderr index 5df2c687bdd..c0d568eb538 100644 --- a/tests/ui/deduplicate-diagnostics.deduplicate.stderr +++ b/tests/ui/diagnostic-flags/deduplicate-diagnostics.deduplicate.stderr @@ -1,11 +1,11 @@ error[E0452]: malformed lint attribute input - --> $DIR/deduplicate-diagnostics.rs:8:8 + --> $DIR/deduplicate-diagnostics.rs:10:8 | LL | #[deny("literal")] | ^^^^^^^^^ bad attribute argument error: cannot find derive macro `Unresolved` in this scope - --> $DIR/deduplicate-diagnostics.rs:4:10 + --> $DIR/deduplicate-diagnostics.rs:6:10 | LL | #[derive(Unresolved)] | ^^^^^^^^^^ diff --git a/tests/ui/deduplicate-diagnostics.duplicate.stderr b/tests/ui/diagnostic-flags/deduplicate-diagnostics.duplicate.stderr index 48e2ba7b86a..74d7066293f 100644 --- a/tests/ui/deduplicate-diagnostics.duplicate.stderr +++ b/tests/ui/diagnostic-flags/deduplicate-diagnostics.duplicate.stderr @@ -1,17 +1,17 @@ error[E0452]: malformed lint attribute input - --> $DIR/deduplicate-diagnostics.rs:8:8 + --> $DIR/deduplicate-diagnostics.rs:10:8 | LL | #[deny("literal")] | ^^^^^^^^^ bad attribute argument error: cannot find derive macro `Unresolved` in this scope - --> $DIR/deduplicate-diagnostics.rs:4:10 + --> $DIR/deduplicate-diagnostics.rs:6:10 | LL | #[derive(Unresolved)] | ^^^^^^^^^^ error: cannot find derive macro `Unresolved` in this scope - --> $DIR/deduplicate-diagnostics.rs:4:10 + --> $DIR/deduplicate-diagnostics.rs:6:10 | LL | #[derive(Unresolved)] | ^^^^^^^^^^ @@ -19,7 +19,7 @@ LL | #[derive(Unresolved)] = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` error[E0452]: malformed lint attribute input - --> $DIR/deduplicate-diagnostics.rs:8:8 + --> $DIR/deduplicate-diagnostics.rs:10:8 | LL | #[deny("literal")] | ^^^^^^^^^ bad attribute argument @@ -27,7 +27,7 @@ LL | #[deny("literal")] = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` error[E0452]: malformed lint attribute input - --> $DIR/deduplicate-diagnostics.rs:8:8 + --> $DIR/deduplicate-diagnostics.rs:10:8 | LL | #[deny("literal")] | ^^^^^^^^^ bad attribute argument diff --git a/tests/ui/deduplicate-diagnostics.rs b/tests/ui/diagnostic-flags/deduplicate-diagnostics.rs index 299c1f5f461..48705266e35 100644 --- a/tests/ui/deduplicate-diagnostics.rs +++ b/tests/ui/diagnostic-flags/deduplicate-diagnostics.rs @@ -1,3 +1,5 @@ +//! Test that `-Z deduplicate-diagnostics` flag properly deduplicates diagnostic messages. + //@ revisions: duplicate deduplicate //@[deduplicate] compile-flags: -Z deduplicate-diagnostics=yes diff --git a/tests/ui/error-codes/E0120.rs b/tests/ui/error-codes/E0120.rs index 35f544fddfb..4e5cc7d6833 100644 --- a/tests/ui/error-codes/E0120.rs +++ b/tests/ui/error-codes/E0120.rs @@ -1,4 +1,4 @@ -trait MyTrait { fn foo() {} } +trait MyTrait { fn foo(&self) {} } impl Drop for dyn MyTrait { //~^ ERROR E0120 diff --git a/tests/ui/expr/syntax-edge-cases-lint-clean.rs b/tests/ui/expr/weird-exprs.rs index 7db92d46067..7db92d46067 100644 --- a/tests/ui/expr/syntax-edge-cases-lint-clean.rs +++ b/tests/ui/expr/weird-exprs.rs diff --git a/tests/ui/extern/extern-types-size_of_val.rs b/tests/ui/extern/extern-types-size_of_val.rs index 3ff51b9b6b0..875ae9a535a 100644 --- a/tests/ui/extern/extern-types-size_of_val.rs +++ b/tests/ui/extern/extern-types-size_of_val.rs @@ -1,4 +1,4 @@ -//@ check-fail +//@ check-pass #![feature(extern_types)] use std::mem::{align_of_val, size_of_val}; @@ -11,7 +11,5 @@ fn main() { let x: &A = unsafe { &*(1usize as *const A) }; size_of_val(x); - //~^ ERROR the size for values of type `A` cannot be known align_of_val(x); - //~^ ERROR the size for values of type `A` cannot be known } diff --git a/tests/ui/extern/extern-types-size_of_val.stderr b/tests/ui/extern/extern-types-size_of_val.stderr deleted file mode 100644 index 8678c6c3d60..00000000000 --- a/tests/ui/extern/extern-types-size_of_val.stderr +++ /dev/null @@ -1,39 +0,0 @@ -error[E0277]: the size for values of type `A` cannot be known - --> $DIR/extern-types-size_of_val.rs:13:17 - | -LL | size_of_val(x); - | ----------- ^ the trait `MetaSized` is not implemented for `A` - | | - | required by a bound introduced by this call - | - = note: the trait bound `A: MetaSized` is not satisfied -note: required by a bound in `std::mem::size_of_val` - --> $SRC_DIR/core/src/mem/mod.rs:LL:COL -help: consider borrowing here - | -LL | size_of_val(&x); - | + -LL | size_of_val(&mut x); - | ++++ - -error[E0277]: the size for values of type `A` cannot be known - --> $DIR/extern-types-size_of_val.rs:15:18 - | -LL | align_of_val(x); - | ------------ ^ the trait `MetaSized` is not implemented for `A` - | | - | required by a bound introduced by this call - | - = note: the trait bound `A: MetaSized` is not satisfied -note: required by a bound in `std::mem::align_of_val` - --> $SRC_DIR/core/src/mem/mod.rs:LL:COL -help: consider borrowing here - | -LL | align_of_val(&x); - | + -LL | align_of_val(&mut x); - | ++++ - -error: aborting due to 2 previous errors - -For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/extern/extern-types-unsized.rs b/tests/ui/extern/extern-types-unsized.rs index 46cdc24e083..94a222a7e7e 100644 --- a/tests/ui/extern/extern-types-unsized.rs +++ b/tests/ui/extern/extern-types-unsized.rs @@ -27,9 +27,7 @@ fn main() { assert_sized::<Bar<A>>(); //~^ ERROR the size for values of type - //~| ERROR the size for values of type assert_sized::<Bar<Bar<A>>>(); //~^ ERROR the size for values of type - //~| ERROR the size for values of type } diff --git a/tests/ui/extern/extern-types-unsized.stderr b/tests/ui/extern/extern-types-unsized.stderr index 43dd9800d6d..a587d4dda55 100644 --- a/tests/ui/extern/extern-types-unsized.stderr +++ b/tests/ui/extern/extern-types-unsized.stderr @@ -59,21 +59,8 @@ help: consider relaxing the implicit `Sized` restriction LL | fn assert_sized<T: ?Sized>() {} | ++++++++ -error[E0277]: the size for values of type `A` cannot be known - --> $DIR/extern-types-unsized.rs:28:20 - | -LL | assert_sized::<Bar<A>>(); - | ^^^^^^ doesn't have a known size - | - = help: the trait `MetaSized` is not implemented for `A` -note: required by a bound in `Bar` - --> $DIR/extern-types-unsized.rs:14:12 - | -LL | struct Bar<T: ?Sized> { - | ^ required by this bound in `Bar` - error[E0277]: the size for values of type `A` cannot be known at compilation time - --> $DIR/extern-types-unsized.rs:32:20 + --> $DIR/extern-types-unsized.rs:31:20 | LL | assert_sized::<Bar<Bar<A>>>(); | ^^^^^^^^^^^ doesn't have a size known at compile-time @@ -94,19 +81,6 @@ help: consider relaxing the implicit `Sized` restriction LL | fn assert_sized<T: ?Sized>() {} | ++++++++ -error[E0277]: the size for values of type `A` cannot be known - --> $DIR/extern-types-unsized.rs:32:20 - | -LL | assert_sized::<Bar<Bar<A>>>(); - | ^^^^^^^^^^^ doesn't have a known size - | - = help: the trait `MetaSized` is not implemented for `A` -note: required by a bound in `Bar` - --> $DIR/extern-types-unsized.rs:14:12 - | -LL | struct Bar<T: ?Sized> { - | ^ required by this bound in `Bar` - -error: aborting due to 6 previous errors +error: aborting due to 4 previous errors For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/extern/unsized-extern-derefmove.rs b/tests/ui/extern/unsized-extern-derefmove.rs index c02375266ab..39597a12fe1 100644 --- a/tests/ui/extern/unsized-extern-derefmove.rs +++ b/tests/ui/extern/unsized-extern-derefmove.rs @@ -7,14 +7,10 @@ extern "C" { } unsafe fn make_device() -> Box<Device> { -//~^ ERROR the size for values of type `Device` cannot be known Box::from_raw(0 as *mut _) -//~^ ERROR the size for values of type `Device` cannot be known -//~| ERROR the size for values of type `Device` cannot be known } fn main() { let d: Device = unsafe { *make_device() }; //~^ ERROR the size for values of type `Device` cannot be known -//~| ERROR the size for values of type `Device` cannot be known } diff --git a/tests/ui/extern/unsized-extern-derefmove.stderr b/tests/ui/extern/unsized-extern-derefmove.stderr index a9efc2e66e3..c43184d94e1 100644 --- a/tests/ui/extern/unsized-extern-derefmove.stderr +++ b/tests/ui/extern/unsized-extern-derefmove.stderr @@ -1,43 +1,5 @@ -error[E0277]: the size for values of type `Device` cannot be known - --> $DIR/unsized-extern-derefmove.rs:9:28 - | -LL | unsafe fn make_device() -> Box<Device> { - | ^^^^^^^^^^^ doesn't have a known size - | - = help: the trait `MetaSized` is not implemented for `Device` -note: required by a bound in `Box` - --> $SRC_DIR/alloc/src/boxed.rs:LL:COL - -error[E0277]: the size for values of type `Device` cannot be known - --> $DIR/unsized-extern-derefmove.rs:11:19 - | -LL | Box::from_raw(0 as *mut _) - | ------------- ^^^^^^^^^^^ the trait `MetaSized` is not implemented for `Device` - | | - | required by a bound introduced by this call - | - = note: the trait bound `Device: MetaSized` is not satisfied -note: required by a bound in `Box::<T>::from_raw` - --> $SRC_DIR/alloc/src/boxed.rs:LL:COL -help: consider borrowing here - | -LL | Box::from_raw(&(0 as *mut _)) - | ++ + -LL | Box::from_raw(&mut (0 as *mut _)) - | ++++++ + - -error[E0277]: the size for values of type `Device` cannot be known - --> $DIR/unsized-extern-derefmove.rs:11:5 - | -LL | Box::from_raw(0 as *mut _) - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a known size - | - = help: the trait `MetaSized` is not implemented for `Device` -note: required by a bound in `Box` - --> $SRC_DIR/alloc/src/boxed.rs:LL:COL - error[E0277]: the size for values of type `Device` cannot be known at compilation time - --> $DIR/unsized-extern-derefmove.rs:17:9 + --> $DIR/unsized-extern-derefmove.rs:14:9 | LL | let d: Device = unsafe { *make_device() }; | ^ doesn't have a size known at compile-time @@ -49,16 +11,6 @@ help: consider borrowing here LL | let d: &Device = unsafe { *make_device() }; | + -error[E0277]: the size for values of type `Device` cannot be known - --> $DIR/unsized-extern-derefmove.rs:17:31 - | -LL | let d: Device = unsafe { *make_device() }; - | ^^^^^^^^^^^^^ doesn't have a known size - | - = help: the trait `MetaSized` is not implemented for `Device` -note: required by a bound in `Box` - --> $SRC_DIR/alloc/src/boxed.rs:LL:COL - -error: aborting due to 5 previous errors +error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/log-poly.rs b/tests/ui/fmt/println-debug-different-types.rs index 64994a55817..9e21be1f03f 100644 --- a/tests/ui/log-poly.rs +++ b/tests/ui/fmt/println-debug-different-types.rs @@ -1,8 +1,10 @@ +//! Smoke test for println!() with debug format specifiers. + //@ run-pass #[derive(Debug)] enum Numbers { - Three + Three, } pub fn main() { diff --git a/tests/ui/generic-associated-types/bugs/issue-100013.stderr b/tests/ui/generic-associated-types/bugs/issue-100013.stderr deleted file mode 100644 index ff82aebfef9..00000000000 --- a/tests/ui/generic-associated-types/bugs/issue-100013.stderr +++ /dev/null @@ -1,48 +0,0 @@ -error: lifetime bound not satisfied - --> $DIR/issue-100013.rs:15:5 - | -LL | / async { // a coroutine checked for autotrait impl `Send` -LL | | let x = None::<I::Future<'_, '_>>; // a type referencing GAT -LL | | async {}.await; // a yield point -LL | | } - | |_____^ - | - = note: this is a known limitation that will be removed in the future (see issue #100013 <https://github.com/rust-lang/rust/issues/100013> for more information) - -error: lifetime bound not satisfied - --> $DIR/issue-100013.rs:22:5 - | -LL | / async { // a coroutine checked for autotrait impl `Send` -LL | | let x = None::<I::Future<'a, 'b>>; // a type referencing GAT -LL | | async {}.await; // a yield point -LL | | } - | |_____^ - | - = note: this is a known limitation that will be removed in the future (see issue #100013 <https://github.com/rust-lang/rust/issues/100013> for more information) - -error: lifetime may not live long enough - --> $DIR/issue-100013.rs:23:17 - | -LL | fn call2<'a, 'b, I: FutureIterator>() -> impl Send { - | -- -- lifetime `'b` defined here - | | - | lifetime `'a` defined here -LL | async { // a coroutine checked for autotrait impl `Send` -LL | let x = None::<I::Future<'a, 'b>>; // a type referencing GAT - | ^^^^^^^^^^^^^^^^^^^^^^^^^ requires that `'a` must outlive `'b` - | - = help: consider adding the following bound: `'a: 'b` - -error: lifetime bound not satisfied - --> $DIR/issue-100013.rs:29:5 - | -LL | / async { // a coroutine checked for autotrait impl `Send` -LL | | let x = None::<I::Future<'a, 'b>>; // a type referencing GAT -LL | | async {}.await; // a yield point -LL | | } - | |_____^ - | - = note: this is a known limitation that will be removed in the future (see issue #100013 <https://github.com/rust-lang/rust/issues/100013> for more information) - -error: aborting due to 4 previous errors - diff --git a/tests/ui/generic-associated-types/higher-ranked-coroutine-param-outlives-2.no_assumptions.stderr b/tests/ui/generic-associated-types/higher-ranked-coroutine-param-outlives-2.no_assumptions.stderr new file mode 100644 index 00000000000..8b62fb6a254 --- /dev/null +++ b/tests/ui/generic-associated-types/higher-ranked-coroutine-param-outlives-2.no_assumptions.stderr @@ -0,0 +1,24 @@ +error: lifetime bound not satisfied + --> $DIR/higher-ranked-coroutine-param-outlives-2.rs:14:5 + | +LL | / async { // a coroutine checked for autotrait impl `Send` +LL | | let x = None::<I::Future<'_, '_>>; // a type referencing GAT +LL | | async {}.await; // a yield point +LL | | } + | |_____^ + | + = note: this is a known limitation that will be removed in the future (see issue #100013 <https://github.com/rust-lang/rust/issues/100013> for more information) + +error: lifetime bound not satisfied + --> $DIR/higher-ranked-coroutine-param-outlives-2.rs:21:5 + | +LL | / async { // a coroutine checked for autotrait impl `Send` +LL | | let x = None::<I::Future<'a, 'b>>; // a type referencing GAT +LL | | async {}.await; // a yield point +LL | | } + | |_____^ + | + = note: this is a known limitation that will be removed in the future (see issue #100013 <https://github.com/rust-lang/rust/issues/100013> for more information) + +error: aborting due to 2 previous errors + diff --git a/tests/ui/generic-associated-types/bugs/issue-100013.rs b/tests/ui/generic-associated-types/higher-ranked-coroutine-param-outlives-2.rs index ac72c29c03b..a5ed162d62c 100644 --- a/tests/ui/generic-associated-types/bugs/issue-100013.rs +++ b/tests/ui/generic-associated-types/higher-ranked-coroutine-param-outlives-2.rs @@ -1,9 +1,8 @@ -//@ check-fail -//@ known-bug: #100013 //@ edition: 2021 - -// We really should accept this, but we need implied bounds between the regions -// in a coroutine interior. +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] check-pass +//@[no_assumptions] known-bug: #110338 pub trait FutureIterator { type Future<'s, 'cx>: Send @@ -18,14 +17,7 @@ fn call<I: FutureIterator>() -> impl Send { } } -fn call2<'a, 'b, I: FutureIterator>() -> impl Send { - async { // a coroutine checked for autotrait impl `Send` - let x = None::<I::Future<'a, 'b>>; // a type referencing GAT - async {}.await; // a yield point - } -} - -fn call3<'a: 'b, 'b, I: FutureIterator>() -> impl Send { +fn call2<'a: 'b, 'b, I: FutureIterator>() -> impl Send { async { // a coroutine checked for autotrait impl `Send` let x = None::<I::Future<'a, 'b>>; // a type referencing GAT async {}.await; // a yield point diff --git a/tests/ui/generic-associated-types/issue-92096.stderr b/tests/ui/generic-associated-types/higher-ranked-coroutine-param-outlives.no_assumptions.stderr index b9a16cf184e..f747ba9a733 100644 --- a/tests/ui/generic-associated-types/issue-92096.stderr +++ b/tests/ui/generic-associated-types/higher-ranked-coroutine-param-outlives.no_assumptions.stderr @@ -1,5 +1,5 @@ error: `C` does not live long enough - --> $DIR/issue-92096.rs:17:5 + --> $DIR/higher-ranked-coroutine-param-outlives.rs:21:5 | LL | async move { c.connect().await } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/generic-associated-types/higher-ranked-coroutine-param-outlives.rs b/tests/ui/generic-associated-types/higher-ranked-coroutine-param-outlives.rs new file mode 100644 index 00000000000..5f683bd82fa --- /dev/null +++ b/tests/ui/generic-associated-types/higher-ranked-coroutine-param-outlives.rs @@ -0,0 +1,24 @@ +//@ edition:2018 +//@ revisions: assumptions no_assumptions +//@[assumptions] compile-flags: -Zhigher-ranked-assumptions +//@[assumptions] check-pass +//@[no_assumptions] known-bug: #110338 + +use std::future::Future; + +trait Client { + type Connecting<'a>: Future + Send + where + Self: 'a; + + fn connect(&'_ self) -> Self::Connecting<'_>; +} + +fn call_connect<C>(c: &'_ C) -> impl '_ + Future + Send +where + C: Client + Send + Sync, +{ + async move { c.connect().await } +} + +fn main() {} diff --git a/tests/ui/generic-associated-types/issue-92096.rs b/tests/ui/generic-associated-types/issue-92096.rs deleted file mode 100644 index a34c4179584..00000000000 --- a/tests/ui/generic-associated-types/issue-92096.rs +++ /dev/null @@ -1,28 +0,0 @@ -//@ edition:2018 - -use std::future::Future; - -trait Client { - type Connecting<'a>: Future + Send - where - Self: 'a; - - fn connect(&'_ self) -> Self::Connecting<'_>; -} - -fn call_connect<C>(c: &'_ C) -> impl '_ + Future + Send -where - C: Client + Send + Sync, -{ - async move { c.connect().await } - //~^ ERROR `C` does not live long enough - // - // FIXME(#71723). This is because we infer at some point a value of - // - // impl Future<Output = <C as Client>::Connection<'_>> - // - // and then we somehow fail the WF check because `where C: 'a` is not known, - // but I'm not entirely sure how that comes about. -} - -fn main() {} diff --git a/tests/ui/impl-trait/issues/issue-55872-3.rs b/tests/ui/impl-trait/issues/issue-55872-3.rs index 698e7f36234..763b4b9fd32 100644 --- a/tests/ui/impl-trait/issues/issue-55872-3.rs +++ b/tests/ui/impl-trait/issues/issue-55872-3.rs @@ -14,6 +14,7 @@ impl<S> Bar for S { fn foo<T>() -> Self::E { //~^ ERROR : Copy` is not satisfied [E0277] //~| ERROR type parameter `T` is part of concrete type + //~| ERROR type parameter `T` is part of concrete type async {} } } diff --git a/tests/ui/impl-trait/issues/issue-55872-3.stderr b/tests/ui/impl-trait/issues/issue-55872-3.stderr index 3281dcc3501..ce2dd7f02b4 100644 --- a/tests/ui/impl-trait/issues/issue-55872-3.stderr +++ b/tests/ui/impl-trait/issues/issue-55872-3.stderr @@ -1,11 +1,11 @@ -error[E0277]: the trait bound `{async block@$DIR/issue-55872-3.rs:17:9: 17:14}: Copy` is not satisfied +error[E0277]: the trait bound `{async block@$DIR/issue-55872-3.rs:18:9: 18:14}: Copy` is not satisfied --> $DIR/issue-55872-3.rs:14:20 | LL | fn foo<T>() -> Self::E { - | ^^^^^^^ the trait `Copy` is not implemented for `{async block@$DIR/issue-55872-3.rs:17:9: 17:14}` + | ^^^^^^^ the trait `Copy` is not implemented for `{async block@$DIR/issue-55872-3.rs:18:9: 18:14}` ... LL | async {} - | -------- return type was inferred to be `{async block@$DIR/issue-55872-3.rs:17:9: 17:14}` here + | -------- return type was inferred to be `{async block@$DIR/issue-55872-3.rs:18:9: 18:14}` here error: type parameter `T` is part of concrete type but not used in parameter list for the `impl Trait` type alias --> $DIR/issue-55872-3.rs:14:20 @@ -13,6 +13,14 @@ error: type parameter `T` is part of concrete type but not used in parameter lis LL | fn foo<T>() -> Self::E { | ^^^^^^^ -error: aborting due to 2 previous errors +error: type parameter `T` is part of concrete type but not used in parameter list for the `impl Trait` type alias + --> $DIR/issue-55872-3.rs:14:20 + | +LL | fn foo<T>() -> Self::E { + | ^^^^^^^ + | + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` + +error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/impl-trait/rpit-assoc-pair-with-lifetime.rs b/tests/ui/impl-trait/rpit-assoc-pair-with-lifetime.rs index 1ac3c593dbe..1b8a5d4ca99 100644 --- a/tests/ui/impl-trait/rpit-assoc-pair-with-lifetime.rs +++ b/tests/ui/impl-trait/rpit-assoc-pair-with-lifetime.rs @@ -1,7 +1,7 @@ //@ check-pass pub fn iter<'a>(v: Vec<(u32, &'a u32)>) -> impl DoubleEndedIterator<Item = (u32, &u32)> { - //~^ WARNING lifetime flowing from input to output with different syntax + //~^ WARNING eliding a lifetime that's named elsewhere is confusing v.into_iter() } diff --git a/tests/ui/impl-trait/rpit-assoc-pair-with-lifetime.stderr b/tests/ui/impl-trait/rpit-assoc-pair-with-lifetime.stderr index b9d8674992c..3651226e0c3 100644 --- a/tests/ui/impl-trait/rpit-assoc-pair-with-lifetime.stderr +++ b/tests/ui/impl-trait/rpit-assoc-pair-with-lifetime.stderr @@ -1,11 +1,12 @@ -warning: lifetime flowing from input to output with different syntax can be confusing +warning: eliding a lifetime that's named elsewhere is confusing --> $DIR/rpit-assoc-pair-with-lifetime.rs:3:31 | LL | pub fn iter<'a>(v: Vec<(u32, &'a u32)>) -> impl DoubleEndedIterator<Item = (u32, &u32)> { - | ^^ this lifetime flows to the output ---- the lifetime gets resolved as `'a` + | ^^ the lifetime is named here ---- the same lifetime is elided here | + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default -help: one option is to consistently use `'a` +help: consistently use `'a` | LL | pub fn iter<'a>(v: Vec<(u32, &'a u32)>) -> impl DoubleEndedIterator<Item = (u32, &'a u32)> { | ++ diff --git a/tests/ui/layout/unconstrained-param-ice-137308.rs b/tests/ui/layout/unconstrained-param-ice-137308.rs index 03b7e759960..d05e6e1fd3f 100644 --- a/tests/ui/layout/unconstrained-param-ice-137308.rs +++ b/tests/ui/layout/unconstrained-param-ice-137308.rs @@ -17,4 +17,3 @@ impl<C: ?Sized> A for u8 { //~ ERROR: the type parameter `C` is not constrained #[rustc_layout(debug)] struct S([u8; <u8 as A>::B]); //~^ ERROR: the type has an unknown layout -//~| ERROR: type annotations needed diff --git a/tests/ui/layout/unconstrained-param-ice-137308.stderr b/tests/ui/layout/unconstrained-param-ice-137308.stderr index 82cd1217c49..615c131eb90 100644 --- a/tests/ui/layout/unconstrained-param-ice-137308.stderr +++ b/tests/ui/layout/unconstrained-param-ice-137308.stderr @@ -4,19 +4,12 @@ error[E0207]: the type parameter `C` is not constrained by the impl trait, self LL | impl<C: ?Sized> A for u8 { | ^ unconstrained type parameter -error[E0282]: type annotations needed - --> $DIR/unconstrained-param-ice-137308.rs:18:16 - | -LL | struct S([u8; <u8 as A>::B]); - | ^^ cannot infer type for type parameter `C` - error: the type has an unknown layout --> $DIR/unconstrained-param-ice-137308.rs:18:1 | LL | struct S([u8; <u8 as A>::B]); | ^^^^^^^^ -error: aborting due to 3 previous errors +error: aborting due to 2 previous errors -Some errors have detailed explanations: E0207, E0282. -For more information about an error, try `rustc --explain E0207`. +For more information about this error, try `rustc --explain E0207`. diff --git a/tests/ui/lazy-type-alias/opaq-ty-collection-infinite-recur.rs b/tests/ui/lazy-type-alias/opaq-ty-collection-infinite-recur.rs new file mode 100644 index 00000000000..34803c8c103 --- /dev/null +++ b/tests/ui/lazy-type-alias/opaq-ty-collection-infinite-recur.rs @@ -0,0 +1,18 @@ +// The opaque type collector used to expand free alias types (in situ) without guarding against +// endlessly recursing aliases which lead to the compiler overflowing its stack in certain +// situations. +// +// In most situations we wouldn't even reach the collector when there's an overflow because we +// would've already bailed out early during the item's wfcheck due to the normalization failure. +// +// In the case below however, while collecting the opaque types defined by the AnonConst, we +// descend into its nested items (here: type alias `Recur`) to acquire their opaque types -- +// meaning we get there before we wfcheck `Recur`. +// +// issue: <https://github.com/rust-lang/rust/issues/131994> +#![feature(lazy_type_alias)] +#![expect(incomplete_features)] + +struct Hold([(); { type Recur = Recur; 0 }]); //~ ERROR overflow normalizing the type alias `Recur` + +fn main() {} diff --git a/tests/ui/lazy-type-alias/opaq-ty-collection-infinite-recur.stderr b/tests/ui/lazy-type-alias/opaq-ty-collection-infinite-recur.stderr new file mode 100644 index 00000000000..e93fcd03a96 --- /dev/null +++ b/tests/ui/lazy-type-alias/opaq-ty-collection-infinite-recur.stderr @@ -0,0 +1,11 @@ +error[E0275]: overflow normalizing the type alias `Recur` + --> $DIR/opaq-ty-collection-infinite-recur.rs:16:20 + | +LL | struct Hold([(); { type Recur = Recur; 0 }]); + | ^^^^^^^^^^ + | + = note: in case this is a recursive type alias, consider using a struct, enum, or union instead + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0275`. diff --git a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/example-from-issue48686.rs b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/example-from-issue48686.rs index 1804003d367..9162a38f510 100644 --- a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/example-from-issue48686.rs +++ b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/example-from-issue48686.rs @@ -4,7 +4,7 @@ struct Foo; impl Foo { pub fn get_mut(&'static self, x: &mut u8) -> &mut u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing unsafe { &mut *(x as *mut _) } } } diff --git a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/example-from-issue48686.stderr b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/example-from-issue48686.stderr index 7c7411651d0..5a7a5a6ebf9 100644 --- a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/example-from-issue48686.stderr +++ b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/example-from-issue48686.stderr @@ -1,17 +1,18 @@ -error: lifetime flowing from input to output with different syntax can be confusing +error: eliding a lifetime that's named elsewhere is confusing --> $DIR/example-from-issue48686.rs:6:21 | LL | pub fn get_mut(&'static self, x: &mut u8) -> &mut u8 { - | ^^^^^^^ ------- the lifetime gets resolved as `'static` + | ^^^^^^^ ------- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing note: the lint level is defined here --> $DIR/example-from-issue48686.rs:1:9 | LL | #![deny(mismatched_lifetime_syntaxes)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -help: one option is to consistently use `'static` +help: consistently use `'static` | LL | pub fn get_mut(&'static self, x: &mut u8) -> &'static mut u8 { | +++++++ diff --git a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/missing-lifetime-kind.rs b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/missing-lifetime-kind.rs index 3d5aab5c829..ecc790be5a0 100644 --- a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/missing-lifetime-kind.rs +++ b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/missing-lifetime-kind.rs @@ -1,26 +1,26 @@ #![deny(mismatched_lifetime_syntaxes)] fn ampersand<'a>(x: &'a u8) -> &u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing x } struct Brackets<'a>(&'a u8); fn brackets<'a>(x: &'a u8) -> Brackets { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's named elsewhere is confusing Brackets(x) } struct Comma<'a, T>(&'a T); fn comma<'a>(x: &'a u8) -> Comma<u8> { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's named elsewhere is confusing Comma(x) } fn underscore<'a>(x: &'a u8) -> &'_ u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing x } diff --git a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/missing-lifetime-kind.stderr b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/missing-lifetime-kind.stderr index 681b3c97052..af56a0a0ea5 100644 --- a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/missing-lifetime-kind.stderr +++ b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/missing-lifetime-kind.stderr @@ -1,56 +1,60 @@ -error: lifetime flowing from input to output with different syntax can be confusing +error: eliding a lifetime that's named elsewhere is confusing --> $DIR/missing-lifetime-kind.rs:3:22 | LL | fn ampersand<'a>(x: &'a u8) -> &u8 { - | ^^ --- the lifetime gets resolved as `'a` + | ^^ --- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing note: the lint level is defined here --> $DIR/missing-lifetime-kind.rs:1:9 | LL | #![deny(mismatched_lifetime_syntaxes)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -help: one option is to consistently use `'a` +help: consistently use `'a` | LL | fn ampersand<'a>(x: &'a u8) -> &'a u8 { | ++ -error: lifetime flowing from input to output with different syntax can be confusing +error: hiding a lifetime that's named elsewhere is confusing --> $DIR/missing-lifetime-kind.rs:10:21 | LL | fn brackets<'a>(x: &'a u8) -> Brackets { - | ^^ -------- the lifetime gets resolved as `'a` + | ^^ -------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL | fn brackets<'a>(x: &'a u8) -> Brackets<'a> { | ++++ -error: lifetime flowing from input to output with different syntax can be confusing +error: hiding a lifetime that's named elsewhere is confusing --> $DIR/missing-lifetime-kind.rs:17:18 | LL | fn comma<'a>(x: &'a u8) -> Comma<u8> { - | ^^ --------- the lifetime gets resolved as `'a` + | ^^ --------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL | fn comma<'a>(x: &'a u8) -> Comma<'a, u8> { | +++ -error: lifetime flowing from input to output with different syntax can be confusing +error: eliding a lifetime that's named elsewhere is confusing --> $DIR/missing-lifetime-kind.rs:22:23 | LL | fn underscore<'a>(x: &'a u8) -> &'_ u8 { - | ^^ -- the lifetime gets resolved as `'a` + | ^^ -- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL - fn underscore<'a>(x: &'a u8) -> &'_ u8 { LL + fn underscore<'a>(x: &'a u8) -> &'a u8 { diff --git a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/not-tied-to-crate.rs b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/not-tied-to-crate.rs index cc398ab7888..449b2a3c0a8 100644 --- a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/not-tied-to-crate.rs +++ b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/not-tied-to-crate.rs @@ -6,13 +6,13 @@ #[warn(mismatched_lifetime_syntaxes)] mod foo { fn bar(x: &'static u8) -> &u8 { - //~^ WARNING lifetime flowing from input to output with different syntax + //~^ WARNING eliding a lifetime that's named elsewhere is confusing x } #[deny(mismatched_lifetime_syntaxes)] fn baz(x: &'static u8) -> &u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing x } } diff --git a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/not-tied-to-crate.stderr b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/not-tied-to-crate.stderr index da691225c17..cf0a29678fa 100644 --- a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/not-tied-to-crate.stderr +++ b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/not-tied-to-crate.stderr @@ -1,35 +1,37 @@ -warning: lifetime flowing from input to output with different syntax can be confusing +warning: eliding a lifetime that's named elsewhere is confusing --> $DIR/not-tied-to-crate.rs:8:16 | LL | fn bar(x: &'static u8) -> &u8 { - | ^^^^^^^ --- the lifetime gets resolved as `'static` + | ^^^^^^^ --- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing note: the lint level is defined here --> $DIR/not-tied-to-crate.rs:6:8 | LL | #[warn(mismatched_lifetime_syntaxes)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -help: one option is to consistently use `'static` +help: consistently use `'static` | LL | fn bar(x: &'static u8) -> &'static u8 { | +++++++ -error: lifetime flowing from input to output with different syntax can be confusing +error: eliding a lifetime that's named elsewhere is confusing --> $DIR/not-tied-to-crate.rs:14:16 | LL | fn baz(x: &'static u8) -> &u8 { - | ^^^^^^^ --- the lifetime gets resolved as `'static` + | ^^^^^^^ --- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing note: the lint level is defined here --> $DIR/not-tied-to-crate.rs:13:12 | LL | #[deny(mismatched_lifetime_syntaxes)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -help: one option is to consistently use `'static` +help: consistently use `'static` | LL | fn baz(x: &'static u8) -> &'static u8 { | +++++++ diff --git a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/static.rs b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/static.rs index 47ae258f138..c41cf44e1c5 100644 --- a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/static.rs +++ b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/static.rs @@ -14,26 +14,26 @@ impl Trait for () { } fn ampersand(x: &'static u8) -> &u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing x } struct Brackets<'a>(&'a u8); fn brackets(x: &'static u8) -> Brackets { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's named elsewhere is confusing Brackets(x) } struct Comma<'a, T>(&'a T); fn comma(x: &'static u8) -> Comma<u8> { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's named elsewhere is confusing Comma(x) } fn underscore(x: &'static u8) -> &'_ u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing x } diff --git a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/static.stderr b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/static.stderr index 5b9a986bcbe..d60bec6f7e4 100644 --- a/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/static.stderr +++ b/tests/ui/lifetimes/mismatched-lifetime-syntaxes-details/static.stderr @@ -1,56 +1,60 @@ -error: lifetime flowing from input to output with different syntax can be confusing +error: eliding a lifetime that's named elsewhere is confusing --> $DIR/static.rs:16:18 | LL | fn ampersand(x: &'static u8) -> &u8 { - | ^^^^^^^ --- the lifetime gets resolved as `'static` + | ^^^^^^^ --- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing note: the lint level is defined here --> $DIR/static.rs:1:9 | LL | #![deny(mismatched_lifetime_syntaxes)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -help: one option is to consistently use `'static` +help: consistently use `'static` | LL | fn ampersand(x: &'static u8) -> &'static u8 { | +++++++ -error: lifetime flowing from input to output with different syntax can be confusing +error: hiding a lifetime that's named elsewhere is confusing --> $DIR/static.rs:23:17 | LL | fn brackets(x: &'static u8) -> Brackets { - | ^^^^^^^ -------- the lifetime gets resolved as `'static` + | ^^^^^^^ -------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'static` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'static` | LL | fn brackets(x: &'static u8) -> Brackets<'static> { | +++++++++ -error: lifetime flowing from input to output with different syntax can be confusing +error: hiding a lifetime that's named elsewhere is confusing --> $DIR/static.rs:30:14 | LL | fn comma(x: &'static u8) -> Comma<u8> { - | ^^^^^^^ --------- the lifetime gets resolved as `'static` + | ^^^^^^^ --------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'static` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'static` | LL | fn comma(x: &'static u8) -> Comma<'static, u8> { | ++++++++ -error: lifetime flowing from input to output with different syntax can be confusing +error: eliding a lifetime that's named elsewhere is confusing --> $DIR/static.rs:35:19 | LL | fn underscore(x: &'static u8) -> &'_ u8 { - | ^^^^^^^ -- the lifetime gets resolved as `'static` + | ^^^^^^^ -- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'static` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'static` | LL - fn underscore(x: &'static u8) -> &'_ u8 { LL + fn underscore(x: &'static u8) -> &'static u8 { diff --git a/tests/ui/lifetimes/mismatched-lifetime-syntaxes.rs b/tests/ui/lifetimes/mismatched-lifetime-syntaxes.rs index b98423afb17..f6260c47202 100644 --- a/tests/ui/lifetimes/mismatched-lifetime-syntaxes.rs +++ b/tests/ui/lifetimes/mismatched-lifetime-syntaxes.rs @@ -5,109 +5,111 @@ struct ContainsLifetime<'a>(&'a u8); struct S(u8); +// ref to ref + fn explicit_bound_ref_to_implicit_ref<'a>(v: &'a u8) -> &u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing v } fn explicit_bound_ref_to_explicit_anonymous_ref<'a>(v: &'a u8) -> &'_ u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing v } -// --- +// path to path fn implicit_path_to_explicit_anonymous_path(v: ContainsLifetime) -> ContainsLifetime<'_> { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's elided elsewhere is confusing v } fn explicit_anonymous_path_to_implicit_path(v: ContainsLifetime<'_>) -> ContainsLifetime { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's elided elsewhere is confusing v } fn explicit_bound_path_to_implicit_path<'a>(v: ContainsLifetime<'a>) -> ContainsLifetime { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's named elsewhere is confusing v } fn explicit_bound_path_to_explicit_anonymous_path<'a>( v: ContainsLifetime<'a>, - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing ) -> ContainsLifetime<'_> { v } -// --- +// ref to path fn implicit_ref_to_implicit_path(v: &u8) -> ContainsLifetime { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's elided elsewhere is confusing ContainsLifetime(v) } fn explicit_anonymous_ref_to_implicit_path(v: &'_ u8) -> ContainsLifetime { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's elided elsewhere is confusing ContainsLifetime(v) } fn explicit_bound_ref_to_implicit_path<'a>(v: &'a u8) -> ContainsLifetime { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's named elsewhere is confusing ContainsLifetime(v) } fn explicit_bound_ref_to_explicit_anonymous_path<'a>(v: &'a u8) -> ContainsLifetime<'_> { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing ContainsLifetime(v) } -// --- +// path to ref fn implicit_path_to_implicit_ref(v: ContainsLifetime) -> &u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's elided elsewhere is confusing v.0 } fn implicit_path_to_explicit_anonymous_ref(v: ContainsLifetime) -> &'_ u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's elided elsewhere is confusing v.0 } fn explicit_bound_path_to_implicit_ref<'a>(v: ContainsLifetime<'a>) -> &u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing v.0 } fn explicit_bound_path_to_explicit_anonymous_ref<'a>(v: ContainsLifetime<'a>) -> &'_ u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing v.0 } impl S { fn method_explicit_bound_ref_to_implicit_ref<'a>(&'a self) -> &u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing &self.0 } fn method_explicit_bound_ref_to_explicit_anonymous_ref<'a>(&'a self) -> &'_ u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing &self.0 } // --- fn method_explicit_anonymous_ref_to_implicit_path(&'_ self) -> ContainsLifetime { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's elided elsewhere is confusing ContainsLifetime(&self.0) } fn method_explicit_bound_ref_to_implicit_path<'a>(&'a self) -> ContainsLifetime { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's named elsewhere is confusing ContainsLifetime(&self.0) } fn method_explicit_bound_ref_to_explicit_anonymous_path<'a>(&'a self) -> ContainsLifetime<'_> { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing ContainsLifetime(&self.0) } } @@ -122,43 +124,43 @@ mod static_suggestions { struct S(u8); fn static_ref_to_implicit_ref(v: &'static u8) -> &u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing v } fn static_ref_to_explicit_anonymous_ref(v: &'static u8) -> &'_ u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing v } fn static_ref_to_implicit_path(v: &'static u8) -> ContainsLifetime { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's named elsewhere is confusing ContainsLifetime(v) } fn static_ref_to_explicit_anonymous_path(v: &'static u8) -> ContainsLifetime<'_> { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing ContainsLifetime(v) } impl S { fn static_ref_to_implicit_ref(&'static self) -> &u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing &self.0 } fn static_ref_to_explicit_anonymous_ref(&'static self) -> &'_ u8 { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing &self.0 } fn static_ref_to_implicit_path(&'static self) -> ContainsLifetime { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's named elsewhere is confusing ContainsLifetime(&self.0) } fn static_ref_to_explicit_anonymous_path(&'static self) -> ContainsLifetime<'_> { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing ContainsLifetime(&self.0) } } @@ -170,23 +172,23 @@ mod impl_trait { struct ContainsLifetime<'a>(&'a u8); fn explicit_bound_ref_to_impl_trait_bound<'a>(v: &'a u8) -> impl FnOnce() + '_ { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing move || _ = v } fn explicit_bound_ref_to_impl_trait_precise_capture<'a>(v: &'a u8) -> impl FnOnce() + use<'_> { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing move || _ = v } fn explicit_bound_path_to_impl_trait_bound<'a>(v: ContainsLifetime<'a>) -> impl FnOnce() + '_ { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing move || _ = v } fn explicit_bound_path_to_impl_trait_precise_capture<'a>( v: ContainsLifetime<'a>, - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing ) -> impl FnOnce() + use<'_> { move || _ = v } @@ -200,13 +202,13 @@ mod dyn_trait { struct ContainsLifetime<'a>(&'a u8); fn explicit_bound_ref_to_dyn_trait_bound<'a>(v: &'a u8) -> Box<dyn Iterator<Item = &u8> + '_> { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing Box::new(iter::once(v)) } fn explicit_bound_path_to_dyn_trait_bound<'a>( v: ContainsLifetime<'a>, - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's named elsewhere is confusing ) -> Box<dyn Iterator<Item = ContainsLifetime> + '_> { Box::new(iter::once(v)) } @@ -214,10 +216,28 @@ mod dyn_trait { /// These tests serve to exercise edge cases of the lint formatting mod diagnostic_output { + #[derive(Copy, Clone)] + struct ContainsLifetime<'a>(&'a u8); + + fn multiple_inputs<'a>(v: (&'a u8, &'a u8)) -> &u8 { + //~^ ERROR eliding a lifetime that's named elsewhere is confusing + v.0 + } + fn multiple_outputs<'a>(v: &'a u8) -> (&u8, &u8) { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR eliding a lifetime that's named elsewhere is confusing (v, v) } + + fn all_three_categories<'a>(v: ContainsLifetime<'a>) -> (&u8, ContainsLifetime) { + //~^ ERROR hiding or eliding a lifetime that's named elsewhere is confusing + (v.0, v) + } + + fn explicit_bound_output<'a>(v: &'a u8) -> (&u8, &'a u8, ContainsLifetime<'a>) { + //~^ ERROR eliding a lifetime that's named elsewhere is confusing + (v, v, ContainsLifetime(v)) + } } /// Trait functions are represented differently in the HIR. Make sure @@ -228,20 +248,20 @@ mod trait_functions { trait TheTrait { fn implicit_ref_to_implicit_path(v: &u8) -> ContainsLifetime; - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's elided elsewhere is confusing fn method_implicit_ref_to_implicit_path(&self) -> ContainsLifetime; - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's elided elsewhere is confusing } impl TheTrait for &u8 { fn implicit_ref_to_implicit_path(v: &u8) -> ContainsLifetime { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's elided elsewhere is confusing ContainsLifetime(v) } fn method_implicit_ref_to_implicit_path(&self) -> ContainsLifetime { - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's elided elsewhere is confusing ContainsLifetime(self) } } @@ -255,7 +275,7 @@ mod foreign_functions { extern "Rust" { fn implicit_ref_to_implicit_path(v: &u8) -> ContainsLifetime; - //~^ ERROR lifetime flowing from input to output with different syntax + //~^ ERROR hiding a lifetime that's elided elsewhere is confusing } } diff --git a/tests/ui/lifetimes/mismatched-lifetime-syntaxes.stderr b/tests/ui/lifetimes/mismatched-lifetime-syntaxes.stderr index 108b3f14169..20b7561c594 100644 --- a/tests/ui/lifetimes/mismatched-lifetime-syntaxes.stderr +++ b/tests/ui/lifetimes/mismatched-lifetime-syntaxes.stderr @@ -1,538 +1,613 @@ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:8:47 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:10:47 | LL | fn explicit_bound_ref_to_implicit_ref<'a>(v: &'a u8) -> &u8 { - | ^^ --- the lifetime gets resolved as `'a` + | ^^ --- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing note: the lint level is defined here --> $DIR/mismatched-lifetime-syntaxes.rs:1:9 | LL | #![deny(mismatched_lifetime_syntaxes)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -help: one option is to consistently use `'a` +help: consistently use `'a` | LL | fn explicit_bound_ref_to_implicit_ref<'a>(v: &'a u8) -> &'a u8 { | ++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:13:57 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:15:57 | LL | fn explicit_bound_ref_to_explicit_anonymous_ref<'a>(v: &'a u8) -> &'_ u8 { - | ^^ -- the lifetime gets resolved as `'a` + | ^^ -- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL - fn explicit_bound_ref_to_explicit_anonymous_ref<'a>(v: &'a u8) -> &'_ u8 { LL + fn explicit_bound_ref_to_explicit_anonymous_ref<'a>(v: &'a u8) -> &'a u8 { | -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:20:48 +error: hiding a lifetime that's elided elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:22:48 | LL | fn implicit_path_to_explicit_anonymous_path(v: ContainsLifetime) -> ContainsLifetime<'_> { - | ^^^^^^^^^^^^^^^^ -- the lifetime gets resolved as `'_` + | ^^^^^^^^^^^^^^^^ -- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is hidden here | -help: one option is to consistently use `'_` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'_` | LL | fn implicit_path_to_explicit_anonymous_path(v: ContainsLifetime<'_>) -> ContainsLifetime<'_> { | ++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:25:65 +error: hiding a lifetime that's elided elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:27:65 | LL | fn explicit_anonymous_path_to_implicit_path(v: ContainsLifetime<'_>) -> ContainsLifetime { - | ^^ ---------------- the lifetime gets resolved as `'_` + | ^^ ---------------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is elided here | -help: one option is to consistently use `'_` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'_` | LL | fn explicit_anonymous_path_to_implicit_path(v: ContainsLifetime<'_>) -> ContainsLifetime<'_> { | ++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:30:65 +error: hiding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:32:65 | LL | fn explicit_bound_path_to_implicit_path<'a>(v: ContainsLifetime<'a>) -> ContainsLifetime { - | ^^ ---------------- the lifetime gets resolved as `'a` + | ^^ ---------------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL | fn explicit_bound_path_to_implicit_path<'a>(v: ContainsLifetime<'a>) -> ContainsLifetime<'a> { | ++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:36:25 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:38:25 | LL | v: ContainsLifetime<'a>, - | ^^ this lifetime flows to the output + | ^^ the lifetime is named here LL | LL | ) -> ContainsLifetime<'_> { - | -- the lifetime gets resolved as `'a` + | -- the same lifetime is elided here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL - ) -> ContainsLifetime<'_> { LL + ) -> ContainsLifetime<'a> { | -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:44:37 +error: hiding a lifetime that's elided elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:46:37 | LL | fn implicit_ref_to_implicit_path(v: &u8) -> ContainsLifetime { - | ^^^ ---------------- the lifetime gets resolved as `'_` + | ^^^ ---------------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is elided here | -help: one option is to remove the lifetime for references and use the anonymous lifetime for paths + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: use `'_` for type paths | LL | fn implicit_ref_to_implicit_path(v: &u8) -> ContainsLifetime<'_> { | ++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:49:48 +error: hiding a lifetime that's elided elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:51:48 | LL | fn explicit_anonymous_ref_to_implicit_path(v: &'_ u8) -> ContainsLifetime { - | ^^ ---------------- the lifetime gets resolved as `'_` + | ^^ ---------------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is elided here | -help: one option is to remove the lifetime for references and use the anonymous lifetime for paths - | -LL - fn explicit_anonymous_ref_to_implicit_path(v: &'_ u8) -> ContainsLifetime { -LL + fn explicit_anonymous_ref_to_implicit_path(v: &u8) -> ContainsLifetime<'_> { + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: use `'_` for type paths | +LL | fn explicit_anonymous_ref_to_implicit_path(v: &'_ u8) -> ContainsLifetime<'_> { + | ++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:54:48 +error: hiding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:56:48 | LL | fn explicit_bound_ref_to_implicit_path<'a>(v: &'a u8) -> ContainsLifetime { - | ^^ ---------------- the lifetime gets resolved as `'a` + | ^^ ---------------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL | fn explicit_bound_ref_to_implicit_path<'a>(v: &'a u8) -> ContainsLifetime<'a> { | ++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:59:58 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:61:58 | LL | fn explicit_bound_ref_to_explicit_anonymous_path<'a>(v: &'a u8) -> ContainsLifetime<'_> { - | ^^ -- the lifetime gets resolved as `'a` + | ^^ -- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL - fn explicit_bound_ref_to_explicit_anonymous_path<'a>(v: &'a u8) -> ContainsLifetime<'_> { LL + fn explicit_bound_ref_to_explicit_anonymous_path<'a>(v: &'a u8) -> ContainsLifetime<'a> { | -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:66:37 +error: hiding a lifetime that's elided elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:68:37 | LL | fn implicit_path_to_implicit_ref(v: ContainsLifetime) -> &u8 { - | ^^^^^^^^^^^^^^^^ --- the lifetime gets resolved as `'_` + | ^^^^^^^^^^^^^^^^ --- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is hidden here | -help: one option is to remove the lifetime for references and use the anonymous lifetime for paths + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: use `'_` for type paths | LL | fn implicit_path_to_implicit_ref(v: ContainsLifetime<'_>) -> &u8 { | ++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:71:47 +error: hiding a lifetime that's elided elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:73:47 | LL | fn implicit_path_to_explicit_anonymous_ref(v: ContainsLifetime) -> &'_ u8 { - | ^^^^^^^^^^^^^^^^ -- the lifetime gets resolved as `'_` + | ^^^^^^^^^^^^^^^^ -- the same lifetime is elided here | | - | this lifetime flows to the output - | -help: one option is to remove the lifetime for references and use the anonymous lifetime for paths + | the lifetime is hidden here | -LL - fn implicit_path_to_explicit_anonymous_ref(v: ContainsLifetime) -> &'_ u8 { -LL + fn implicit_path_to_explicit_anonymous_ref(v: ContainsLifetime<'_>) -> &u8 { + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: use `'_` for type paths | +LL | fn implicit_path_to_explicit_anonymous_ref(v: ContainsLifetime<'_>) -> &'_ u8 { + | ++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:76:64 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:78:64 | LL | fn explicit_bound_path_to_implicit_ref<'a>(v: ContainsLifetime<'a>) -> &u8 { - | ^^ --- the lifetime gets resolved as `'a` + | ^^ --- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL | fn explicit_bound_path_to_implicit_ref<'a>(v: ContainsLifetime<'a>) -> &'a u8 { | ++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:81:74 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:83:74 | LL | fn explicit_bound_path_to_explicit_anonymous_ref<'a>(v: ContainsLifetime<'a>) -> &'_ u8 { - | ^^ -- the lifetime gets resolved as `'a` + | ^^ -- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL - fn explicit_bound_path_to_explicit_anonymous_ref<'a>(v: ContainsLifetime<'a>) -> &'_ u8 { LL + fn explicit_bound_path_to_explicit_anonymous_ref<'a>(v: ContainsLifetime<'a>) -> &'a u8 { | -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:87:55 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:89:55 | LL | fn method_explicit_bound_ref_to_implicit_ref<'a>(&'a self) -> &u8 { - | ^^ --- the lifetime gets resolved as `'a` + | ^^ --- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL | fn method_explicit_bound_ref_to_implicit_ref<'a>(&'a self) -> &'a u8 { | ++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:92:65 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:94:65 | LL | fn method_explicit_bound_ref_to_explicit_anonymous_ref<'a>(&'a self) -> &'_ u8 { - | ^^ -- the lifetime gets resolved as `'a` + | ^^ -- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL - fn method_explicit_bound_ref_to_explicit_anonymous_ref<'a>(&'a self) -> &'_ u8 { LL + fn method_explicit_bound_ref_to_explicit_anonymous_ref<'a>(&'a self) -> &'a u8 { | -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:99:56 +error: hiding a lifetime that's elided elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:101:56 | LL | fn method_explicit_anonymous_ref_to_implicit_path(&'_ self) -> ContainsLifetime { - | ^^ ---------------- the lifetime gets resolved as `'_` + | ^^ ---------------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is elided here | -help: one option is to remove the lifetime for references and use the anonymous lifetime for paths - | -LL - fn method_explicit_anonymous_ref_to_implicit_path(&'_ self) -> ContainsLifetime { -LL + fn method_explicit_anonymous_ref_to_implicit_path(&self) -> ContainsLifetime<'_> { + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: use `'_` for type paths | +LL | fn method_explicit_anonymous_ref_to_implicit_path(&'_ self) -> ContainsLifetime<'_> { + | ++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:104:56 +error: hiding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:106:56 | LL | fn method_explicit_bound_ref_to_implicit_path<'a>(&'a self) -> ContainsLifetime { - | ^^ ---------------- the lifetime gets resolved as `'a` + | ^^ ---------------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL | fn method_explicit_bound_ref_to_implicit_path<'a>(&'a self) -> ContainsLifetime<'a> { | ++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:109:66 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:111:66 | LL | fn method_explicit_bound_ref_to_explicit_anonymous_path<'a>(&'a self) -> ContainsLifetime<'_> { - | ^^ -- the lifetime gets resolved as `'a` + | ^^ -- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL - fn method_explicit_bound_ref_to_explicit_anonymous_path<'a>(&'a self) -> ContainsLifetime<'_> { LL + fn method_explicit_bound_ref_to_explicit_anonymous_path<'a>(&'a self) -> ContainsLifetime<'a> { | -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:124:39 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:126:39 | LL | fn static_ref_to_implicit_ref(v: &'static u8) -> &u8 { - | ^^^^^^^ --- the lifetime gets resolved as `'static` + | ^^^^^^^ --- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'static` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'static` | LL | fn static_ref_to_implicit_ref(v: &'static u8) -> &'static u8 { | +++++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:129:49 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:131:49 | LL | fn static_ref_to_explicit_anonymous_ref(v: &'static u8) -> &'_ u8 { - | ^^^^^^^ -- the lifetime gets resolved as `'static` + | ^^^^^^^ -- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'static` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'static` | LL - fn static_ref_to_explicit_anonymous_ref(v: &'static u8) -> &'_ u8 { LL + fn static_ref_to_explicit_anonymous_ref(v: &'static u8) -> &'static u8 { | -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:134:40 +error: hiding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:136:40 | LL | fn static_ref_to_implicit_path(v: &'static u8) -> ContainsLifetime { - | ^^^^^^^ ---------------- the lifetime gets resolved as `'static` + | ^^^^^^^ ---------------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'static` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'static` | LL | fn static_ref_to_implicit_path(v: &'static u8) -> ContainsLifetime<'static> { | +++++++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:139:50 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:141:50 | LL | fn static_ref_to_explicit_anonymous_path(v: &'static u8) -> ContainsLifetime<'_> { - | ^^^^^^^ -- the lifetime gets resolved as `'static` + | ^^^^^^^ -- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'static` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'static` | LL - fn static_ref_to_explicit_anonymous_path(v: &'static u8) -> ContainsLifetime<'_> { LL + fn static_ref_to_explicit_anonymous_path(v: &'static u8) -> ContainsLifetime<'static> { | -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:145:40 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:147:40 | LL | fn static_ref_to_implicit_ref(&'static self) -> &u8 { - | ^^^^^^^ --- the lifetime gets resolved as `'static` + | ^^^^^^^ --- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'static` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'static` | LL | fn static_ref_to_implicit_ref(&'static self) -> &'static u8 { | +++++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:150:50 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:152:50 | LL | fn static_ref_to_explicit_anonymous_ref(&'static self) -> &'_ u8 { - | ^^^^^^^ -- the lifetime gets resolved as `'static` + | ^^^^^^^ -- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'static` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'static` | LL - fn static_ref_to_explicit_anonymous_ref(&'static self) -> &'_ u8 { LL + fn static_ref_to_explicit_anonymous_ref(&'static self) -> &'static u8 { | -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:155:41 +error: hiding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:157:41 | LL | fn static_ref_to_implicit_path(&'static self) -> ContainsLifetime { - | ^^^^^^^ ---------------- the lifetime gets resolved as `'static` + | ^^^^^^^ ---------------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'static` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'static` | LL | fn static_ref_to_implicit_path(&'static self) -> ContainsLifetime<'static> { | +++++++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:160:51 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:162:51 | LL | fn static_ref_to_explicit_anonymous_path(&'static self) -> ContainsLifetime<'_> { - | ^^^^^^^ -- the lifetime gets resolved as `'static` + | ^^^^^^^ -- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'static` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'static` | LL - fn static_ref_to_explicit_anonymous_path(&'static self) -> ContainsLifetime<'_> { LL + fn static_ref_to_explicit_anonymous_path(&'static self) -> ContainsLifetime<'static> { | -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:172:55 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:174:55 | LL | fn explicit_bound_ref_to_impl_trait_bound<'a>(v: &'a u8) -> impl FnOnce() + '_ { - | ^^ -- the lifetime gets resolved as `'a` + | ^^ -- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL - fn explicit_bound_ref_to_impl_trait_bound<'a>(v: &'a u8) -> impl FnOnce() + '_ { LL + fn explicit_bound_ref_to_impl_trait_bound<'a>(v: &'a u8) -> impl FnOnce() + 'a { | -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:177:65 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:179:65 | LL | fn explicit_bound_ref_to_impl_trait_precise_capture<'a>(v: &'a u8) -> impl FnOnce() + use<'_> { - | ^^ -- the lifetime gets resolved as `'a` - | | - | this lifetime flows to the output + | ^^ the lifetime is named here -- the same lifetime is elided here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL - fn explicit_bound_ref_to_impl_trait_precise_capture<'a>(v: &'a u8) -> impl FnOnce() + use<'_> { LL + fn explicit_bound_ref_to_impl_trait_precise_capture<'a>(v: &'a u8) -> impl FnOnce() + use<'a> { | -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:182:72 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:184:72 | LL | fn explicit_bound_path_to_impl_trait_bound<'a>(v: ContainsLifetime<'a>) -> impl FnOnce() + '_ { - | ^^ -- the lifetime gets resolved as `'a` + | ^^ -- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL - fn explicit_bound_path_to_impl_trait_bound<'a>(v: ContainsLifetime<'a>) -> impl FnOnce() + '_ { LL + fn explicit_bound_path_to_impl_trait_bound<'a>(v: ContainsLifetime<'a>) -> impl FnOnce() + 'a { | -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:188:29 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:190:29 | LL | v: ContainsLifetime<'a>, - | ^^ this lifetime flows to the output + | ^^ the lifetime is named here LL | LL | ) -> impl FnOnce() + use<'_> { - | -- the lifetime gets resolved as `'a` + | -- the same lifetime is elided here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL - ) -> impl FnOnce() + use<'_> { LL + ) -> impl FnOnce() + use<'a> { | -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:202:54 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:204:54 | LL | fn explicit_bound_ref_to_dyn_trait_bound<'a>(v: &'a u8) -> Box<dyn Iterator<Item = &u8> + '_> { - | ^^ --- -- the lifetimes get resolved as `'a` - | | | - | | the lifetimes get resolved as `'a` - | this lifetime flows to the output + | ^^ the lifetime is named here --- the same lifetime is elided here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL | fn explicit_bound_ref_to_dyn_trait_bound<'a>(v: &'a u8) -> Box<dyn Iterator<Item = &'a u8> + '_> { | ++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:208:29 +error: hiding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:210:29 | LL | v: ContainsLifetime<'a>, - | ^^ this lifetime flows to the output + | ^^ the lifetime is named here LL | LL | ) -> Box<dyn Iterator<Item = ContainsLifetime> + '_> { - | ---------------- -- the lifetimes get resolved as `'a` - | | - | the lifetimes get resolved as `'a` + | ---------------- the same lifetime is hidden here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL | ) -> Box<dyn Iterator<Item = ContainsLifetime<'a>> + '_> { | ++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:217:33 +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:222:33 + | +LL | fn multiple_inputs<'a>(v: (&'a u8, &'a u8)) -> &u8 { + | ^^ ^^ --- the same lifetime is elided here + | | | + | | the lifetime is named here + | the lifetime is named here + | + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` + | +LL | fn multiple_inputs<'a>(v: (&'a u8, &'a u8)) -> &'a u8 { + | ++ + +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:227:33 | LL | fn multiple_outputs<'a>(v: &'a u8) -> (&u8, &u8) { - | ^^ --- --- the lifetimes get resolved as `'a` + | ^^ --- --- the same lifetime is elided here | | | - | | the lifetimes get resolved as `'a` - | this lifetime flows to the output + | | the same lifetime is elided here + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL | fn multiple_outputs<'a>(v: &'a u8) -> (&'a u8, &'a u8) { | ++ ++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:230:45 +error: hiding or eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:232:53 + | +LL | fn all_three_categories<'a>(v: ContainsLifetime<'a>) -> (&u8, ContainsLifetime) { + | ^^ --- ---------------- the same lifetime is hidden here + | | | + | | the same lifetime is elided here + | the lifetime is named here + | + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` + | +LL | fn all_three_categories<'a>(v: ContainsLifetime<'a>) -> (&'a u8, ContainsLifetime<'a>) { + | ++ ++++ + +error: eliding a lifetime that's named elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:237:38 + | +LL | fn explicit_bound_output<'a>(v: &'a u8) -> (&u8, &'a u8, ContainsLifetime<'a>) { + | ^^ --- -- -- the same lifetime is named here + | | | | + | | | the same lifetime is named here + | | the same lifetime is elided here + | the lifetime is named here + | + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` + | +LL | fn explicit_bound_output<'a>(v: &'a u8) -> (&'a u8, &'a u8, ContainsLifetime<'a>) { + | ++ + +error: hiding a lifetime that's elided elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:250:45 | LL | fn implicit_ref_to_implicit_path(v: &u8) -> ContainsLifetime; - | ^^^ ---------------- the lifetime gets resolved as `'_` + | ^^^ ---------------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is elided here | -help: one option is to remove the lifetime for references and use the anonymous lifetime for paths + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: use `'_` for type paths | LL | fn implicit_ref_to_implicit_path(v: &u8) -> ContainsLifetime<'_>; | ++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:233:49 +error: hiding a lifetime that's elided elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:253:49 | LL | fn method_implicit_ref_to_implicit_path(&self) -> ContainsLifetime; - | ^^^^^ ---------------- the lifetime gets resolved as `'_` + | ^^^^^ ---------------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is elided here | -help: one option is to remove the lifetime for references and use the anonymous lifetime for paths + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: use `'_` for type paths | LL | fn method_implicit_ref_to_implicit_path(&self) -> ContainsLifetime<'_>; | ++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:238:45 +error: hiding a lifetime that's elided elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:258:45 | LL | fn implicit_ref_to_implicit_path(v: &u8) -> ContainsLifetime { - | ^^^ ---------------- the lifetime gets resolved as `'_` + | ^^^ ---------------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is elided here | -help: one option is to remove the lifetime for references and use the anonymous lifetime for paths + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: use `'_` for type paths | LL | fn implicit_ref_to_implicit_path(v: &u8) -> ContainsLifetime<'_> { | ++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:243:49 +error: hiding a lifetime that's elided elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:263:49 | LL | fn method_implicit_ref_to_implicit_path(&self) -> ContainsLifetime { - | ^^^^^ ---------------- the lifetime gets resolved as `'_` + | ^^^^^ ---------------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is elided here | -help: one option is to remove the lifetime for references and use the anonymous lifetime for paths + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: use `'_` for type paths | LL | fn method_implicit_ref_to_implicit_path(&self) -> ContainsLifetime<'_> { | ++++ -error: lifetime flowing from input to output with different syntax can be confusing - --> $DIR/mismatched-lifetime-syntaxes.rs:257:45 +error: hiding a lifetime that's elided elsewhere is confusing + --> $DIR/mismatched-lifetime-syntaxes.rs:277:45 | LL | fn implicit_ref_to_implicit_path(v: &u8) -> ContainsLifetime; - | ^^^ ---------------- the lifetime gets resolved as `'_` + | ^^^ ---------------- the same lifetime is hidden here | | - | this lifetime flows to the output + | the lifetime is elided here | -help: one option is to remove the lifetime for references and use the anonymous lifetime for paths + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: use `'_` for type paths | LL | fn implicit_ref_to_implicit_path(v: &u8) -> ContainsLifetime<'_>; | ++++ -error: aborting due to 39 previous errors +error: aborting due to 42 previous errors diff --git a/tests/ui/linking/export-executable-symbols.rs b/tests/ui/linking/export-executable-symbols.rs index aea5527b6a1..2bff58ca38a 100644 --- a/tests/ui/linking/export-executable-symbols.rs +++ b/tests/ui/linking/export-executable-symbols.rs @@ -1,22 +1,22 @@ //@ run-pass -//@ only-linux -//@ only-gnu -//@ compile-flags: -Zexport-executable-symbols +//@ compile-flags: -Ctarget-feature=-crt-static -Zexport-executable-symbols +//@ ignore-wasm +//@ ignore-cross-compile //@ edition: 2024 // Regression test for <https://github.com/rust-lang/rust/issues/101610>. #![feature(rustc_private)] -extern crate libc; - #[unsafe(no_mangle)] fn hack() -> u64 { 998244353 } fn main() { + #[cfg(unix)] unsafe { + extern crate libc; let handle = libc::dlopen(std::ptr::null(), libc::RTLD_NOW); let ptr = libc::dlsym(handle, c"hack".as_ptr()); let ptr: Option<unsafe fn() -> u64> = std::mem::transmute(ptr); @@ -27,4 +27,24 @@ fn main() { panic!("symbol `hack` is not found"); } } + #[cfg(windows)] + unsafe { + type PCSTR = *const u8; + type HMODULE = *mut core::ffi::c_void; + type FARPROC = Option<unsafe extern "system" fn() -> isize>; + #[link(name = "kernel32", kind = "raw-dylib")] + unsafe extern "system" { + fn GetModuleHandleA(lpmodulename: PCSTR) -> HMODULE; + fn GetProcAddress(hmodule: HMODULE, lpprocname: PCSTR) -> FARPROC; + } + let handle = GetModuleHandleA(std::ptr::null_mut()); + let ptr = GetProcAddress(handle, b"hack\0".as_ptr()); + let ptr: Option<unsafe fn() -> u64> = std::mem::transmute(ptr); + if let Some(f) = ptr { + assert!(f() == 998244353); + println!("symbol `hack` is found successfully"); + } else { + panic!("symbol `hack` is not found"); + } + } } diff --git a/tests/ui/darwin-ld64.rs b/tests/ui/linking/ld64-cross-compilation.rs index 75acc07a002..d6c6d1ff91d 100644 --- a/tests/ui/darwin-ld64.rs +++ b/tests/ui/linking/ld64-cross-compilation.rs @@ -1,11 +1,11 @@ +//! This is a regression test for https://github.com/rust-lang/rust/issues/140686. +//! Although this is a ld64(ld-classic) bug, we still need to support it +//! due to cross-compilation and support for older Xcode. + //@ compile-flags: -Copt-level=3 -Ccodegen-units=256 -Clink-arg=-ld_classic //@ run-pass //@ only-x86_64-apple-darwin -// This is a regression test for https://github.com/rust-lang/rust/issues/140686. -// Although this is a ld64(ld-classic) bug, we still need to support it -// due to cross-compilation and support for older Xcode. - fn main() { let dst: Vec<u8> = Vec::new(); let len = broken_func(std::hint::black_box(2), dst); diff --git a/tests/ui/lint/lint-double-negations-macro.rs b/tests/ui/lint/lint-double-negations-macro.rs new file mode 100644 index 00000000000..a6583271d5a --- /dev/null +++ b/tests/ui/lint/lint-double-negations-macro.rs @@ -0,0 +1,16 @@ +//@ check-pass +macro_rules! neg { + ($e: expr) => { + -$e + }; +} +macro_rules! bad_macro { + ($e: expr) => { + --$e //~ WARN use of a double negation + }; +} + +fn main() { + neg!(-1); + bad_macro!(1); +} diff --git a/tests/ui/lint/lint-double-negations-macro.stderr b/tests/ui/lint/lint-double-negations-macro.stderr new file mode 100644 index 00000000000..d6ac9be48f3 --- /dev/null +++ b/tests/ui/lint/lint-double-negations-macro.stderr @@ -0,0 +1,20 @@ +warning: use of a double negation + --> $DIR/lint-double-negations-macro.rs:9:9 + | +LL | --$e + | ^^^^ +... +LL | bad_macro!(1); + | ------------- in this macro invocation + | + = note: the prefix `--` could be misinterpreted as a decrement operator which exists in other languages + = note: use `-= 1` if you meant to decrement the value + = note: `#[warn(double_negations)]` on by default + = note: this warning originates in the macro `bad_macro` (in Nightly builds, run with -Z macro-backtrace for more info) +help: add parentheses for clarity + | +LL | -(-$e) + | + + + +warning: 1 warning emitted + diff --git a/tests/crashes/128094.rs b/tests/ui/mir/gvn-nonsensical-coroutine-layout.rs index 56d09d78bed..f0d174cd01b 100644 --- a/tests/crashes/128094.rs +++ b/tests/ui/mir/gvn-nonsensical-coroutine-layout.rs @@ -1,15 +1,19 @@ -//@ known-bug: rust-lang/rust#128094 +//! Verify that we do not ICE when a coroutine body is malformed. //@ compile-flags: -Zmir-enable-passes=+GVN //@ edition: 2018 pub enum Request { TestSome(T), + //~^ ERROR cannot find type `T` in this scope [E0412] } pub async fn handle_event(event: Request) { async move { static instance: Request = Request { bar: 17 }; + //~^ ERROR expected struct, variant or union type, found enum `Request` [E0574] &instance } .await; } + +fn main() {} diff --git a/tests/ui/mir/gvn-nonsensical-coroutine-layout.stderr b/tests/ui/mir/gvn-nonsensical-coroutine-layout.stderr new file mode 100644 index 00000000000..abc7b16ca74 --- /dev/null +++ b/tests/ui/mir/gvn-nonsensical-coroutine-layout.stderr @@ -0,0 +1,26 @@ +error[E0412]: cannot find type `T` in this scope + --> $DIR/gvn-nonsensical-coroutine-layout.rs:6:14 + | +LL | TestSome(T), + | ^ not found in this scope + | +help: you might be missing a type parameter + | +LL | pub enum Request<T> { + | +++ + +error[E0574]: expected struct, variant or union type, found enum `Request` + --> $DIR/gvn-nonsensical-coroutine-layout.rs:12:36 + | +LL | static instance: Request = Request { bar: 17 }; + | ^^^^^^^ not a struct, variant or union type + | +help: consider importing this struct instead + | +LL + use std::error::Request; + | + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0412, E0574. +For more information about an error, try `rustc --explain E0412`. diff --git a/tests/crashes/135128.rs b/tests/ui/mir/gvn-nonsensical-sized-str.rs index c718b758dc6..29a82f8ce2a 100644 --- a/tests/crashes/135128.rs +++ b/tests/ui/mir/gvn-nonsensical-sized-str.rs @@ -1,13 +1,16 @@ -//@ known-bug: #135128 +//! Verify that we do not ICE when optimizing bodies with nonsensical bounds. //@ compile-flags: -Copt-level=1 //@ edition: 2021 +//@ build-pass #![feature(trivial_bounds)] async fn return_str() -> str where str: Sized, + //~^ WARN trait bound str: Sized does not depend on any type or lifetime parameters { *"Sized".to_string().into_boxed_str() } + fn main() {} diff --git a/tests/ui/mir/gvn-nonsensical-sized-str.stderr b/tests/ui/mir/gvn-nonsensical-sized-str.stderr new file mode 100644 index 00000000000..08f0193e9f6 --- /dev/null +++ b/tests/ui/mir/gvn-nonsensical-sized-str.stderr @@ -0,0 +1,10 @@ +warning: trait bound str: Sized does not depend on any type or lifetime parameters + --> $DIR/gvn-nonsensical-sized-str.rs:10:10 + | +LL | str: Sized, + | ^^^^^ + | + = note: `#[warn(trivial_bounds)]` on by default + +warning: 1 warning emitted + diff --git a/tests/ui/nll/issue-50716.rs b/tests/ui/nll/issue-50716.rs index 76c6fc5e7b9..96168ebeaa1 100644 --- a/tests/ui/nll/issue-50716.rs +++ b/tests/ui/nll/issue-50716.rs @@ -5,7 +5,7 @@ trait A { type X: ?Sized; } -fn foo<'a, T: 'static>(s: Box<<&'a T as A>::X>) //~ ERROR +fn foo<'a, T: 'static>(s: Box<<&'a T as A>::X>) where for<'b> &'b T: A, <&'static T as A>::X: Sized diff --git a/tests/ui/nll/issue-50716.stderr b/tests/ui/nll/issue-50716.stderr index edd7fd765da..536f88085de 100644 --- a/tests/ui/nll/issue-50716.stderr +++ b/tests/ui/nll/issue-50716.stderr @@ -1,18 +1,3 @@ -error[E0308]: mismatched types - --> $DIR/issue-50716.rs:8:27 - | -LL | fn foo<'a, T: 'static>(s: Box<<&'a T as A>::X>) - | ^^^^^^^^^^^^^^^^^^^^ lifetime mismatch - | - = note: expected trait `<<&'a T as A>::X as MetaSized>` - found trait `<<&'static T as A>::X as MetaSized>` -note: the lifetime `'a` as defined here... - --> $DIR/issue-50716.rs:8:8 - | -LL | fn foo<'a, T: 'static>(s: Box<<&'a T as A>::X>) - | ^^ - = note: ...does not necessarily outlive the static lifetime - error: lifetime may not live long enough --> $DIR/issue-50716.rs:13:14 | @@ -22,6 +7,5 @@ LL | fn foo<'a, T: 'static>(s: Box<<&'a T as A>::X>) LL | let _x = *s; | ^^ proving this value is `Sized` requires that `'a` must outlive `'static` -error: aborting due to 2 previous errors +error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/panics/panic-main.rs b/tests/ui/panics/panic-main.rs index 3876dbb37c3..bf79de78a57 100644 --- a/tests/ui/panics/panic-main.rs +++ b/tests/ui/panics/panic-main.rs @@ -1,3 +1,26 @@ +//@ revisions: default abort-zero abort-one abort-full unwind-zero unwind-one unwind-full + +//@[abort-zero] compile-flags: -Cpanic=abort +//@[abort-zero] no-prefer-dynamic +//@[abort-zero] exec-env:RUST_BACKTRACE=0 + +//@[abort-one] compile-flags: -Cpanic=abort +//@[abort-one] no-prefer-dynamic +//@[abort-one] exec-env:RUST_BACKTRACE=1 + +//@[abort-full] compile-flags: -Cpanic=abort +//@[abort-full] no-prefer-dynamic +//@[abort-full] exec-env:RUST_BACKTRACE=full + +//@[unwind-zero] compile-flags: -Cpanic=unwind +//@[unwind-zero] exec-env:RUST_BACKTRACE=0 + +//@[unwind-one] compile-flags: -Cpanic=unwind +//@[unwind-one] exec-env:RUST_BACKTRACE=1 + +//@[unwind-full] compile-flags: -Cpanic=unwind +//@[unwind-full] exec-env:RUST_BACKTRACE=full + //@ run-fail //@ error-pattern:moop //@ needs-subprocess diff --git a/tests/ui/parser/issues/issue-35813-postfix-after-cast.rs b/tests/ui/parser/issues/issue-35813-postfix-after-cast.rs index 316c612940c..439793ea8f7 100644 --- a/tests/ui/parser/issues/issue-35813-postfix-after-cast.rs +++ b/tests/ui/parser/issues/issue-35813-postfix-after-cast.rs @@ -1,6 +1,6 @@ //@ edition:2018 #![crate_type = "lib"] -#![feature(type_ascription)] +#![feature(type_ascription, const_index, const_trait_impl)] use std::future::Future; use std::pin::Pin; @@ -129,7 +129,6 @@ pub fn inside_block() { static bar: &[i32] = &(&[1,2,3] as &[i32][0..1]); //~^ ERROR: cast cannot be followed by indexing -//~| ERROR: cannot call non-const operator in statics static bar2: &[i32] = &(&[1i32,2,3]: &[i32; 3][0..1]); //~^ ERROR: expected one of diff --git a/tests/ui/parser/issues/issue-35813-postfix-after-cast.stderr b/tests/ui/parser/issues/issue-35813-postfix-after-cast.stderr index 64cf8baf9a5..ce7129da937 100644 --- a/tests/ui/parser/issues/issue-35813-postfix-after-cast.stderr +++ b/tests/ui/parser/issues/issue-35813-postfix-after-cast.stderr @@ -219,13 +219,13 @@ LL | static bar: &[i32] = &((&[1,2,3] as &[i32])[0..1]); | + + error: expected one of `)`, `,`, `.`, `?`, or an operator, found `:` - --> $DIR/issue-35813-postfix-after-cast.rs:134:36 + --> $DIR/issue-35813-postfix-after-cast.rs:133:36 | LL | static bar2: &[i32] = &(&[1i32,2,3]: &[i32; 3][0..1]); | ^ expected one of `)`, `,`, `.`, `?`, or an operator error: cast cannot be followed by `?` - --> $DIR/issue-35813-postfix-after-cast.rs:139:5 + --> $DIR/issue-35813-postfix-after-cast.rs:138:5 | LL | Err(0u64) as Result<u64,u64>?; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -236,25 +236,25 @@ LL | (Err(0u64) as Result<u64,u64>)?; | + + error: expected one of `.`, `;`, `?`, `}`, or an operator, found `:` - --> $DIR/issue-35813-postfix-after-cast.rs:141:14 + --> $DIR/issue-35813-postfix-after-cast.rs:140:14 | LL | Err(0u64): Result<u64,u64>?; | ^ expected one of `.`, `;`, `?`, `}`, or an operator error: expected identifier, found `:` - --> $DIR/issue-35813-postfix-after-cast.rs:153:13 + --> $DIR/issue-35813-postfix-after-cast.rs:152:13 | LL | drop_ptr: F(); | ^ expected identifier error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `:` - --> $DIR/issue-35813-postfix-after-cast.rs:160:13 + --> $DIR/issue-35813-postfix-after-cast.rs:159:13 | LL | drop_ptr: fn(u8); | ^ expected one of 8 possible tokens error: cast cannot be followed by a function call - --> $DIR/issue-35813-postfix-after-cast.rs:166:5 + --> $DIR/issue-35813-postfix-after-cast.rs:165:5 | LL | drop as fn(u8)(0); | ^^^^^^^^^^^^^^ @@ -265,13 +265,13 @@ LL | (drop as fn(u8))(0); | + + error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `:` - --> $DIR/issue-35813-postfix-after-cast.rs:168:13 + --> $DIR/issue-35813-postfix-after-cast.rs:167:13 | LL | drop_ptr: fn(u8)(0); | ^ expected one of 8 possible tokens error: cast cannot be followed by `.await` - --> $DIR/issue-35813-postfix-after-cast.rs:173:5 + --> $DIR/issue-35813-postfix-after-cast.rs:172:5 | LL | Box::pin(noop()) as Pin<Box<dyn Future<Output = ()>>>.await; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -282,13 +282,13 @@ LL | (Box::pin(noop()) as Pin<Box<dyn Future<Output = ()>>>).await; | + + error: expected one of `.`, `;`, `?`, `}`, or an operator, found `:` - --> $DIR/issue-35813-postfix-after-cast.rs:176:21 + --> $DIR/issue-35813-postfix-after-cast.rs:175:21 | LL | Box::pin(noop()): Pin<Box<_>>.await; | ^ expected one of `.`, `;`, `?`, `}`, or an operator error: cast cannot be followed by a field access - --> $DIR/issue-35813-postfix-after-cast.rs:188:5 + --> $DIR/issue-35813-postfix-after-cast.rs:187:5 | LL | Foo::default() as Foo.bar; | ^^^^^^^^^^^^^^^^^^^^^ @@ -299,7 +299,7 @@ LL | (Foo::default() as Foo).bar; | + + error: expected one of `.`, `;`, `?`, `}`, or an operator, found `:` - --> $DIR/issue-35813-postfix-after-cast.rs:190:19 + --> $DIR/issue-35813-postfix-after-cast.rs:189:19 | LL | Foo::default(): Foo.bar; | ^ expected one of `.`, `;`, `?`, `}`, or an operator @@ -322,21 +322,11 @@ LL | if true { 33 } else { 44 }: i32.max(0) | ^ expected one of `,`, `.`, `?`, or an operator error[E0214]: parenthesized type parameters may only be used with a `Fn` trait - --> $DIR/issue-35813-postfix-after-cast.rs:151:13 + --> $DIR/issue-35813-postfix-after-cast.rs:150:13 | LL | drop as F(); | ^^^ only `Fn` traits may use parentheses -error[E0015]: cannot call non-const operator in statics - --> $DIR/issue-35813-postfix-after-cast.rs:130:42 - | -LL | static bar: &[i32] = &(&[1,2,3] as &[i32][0..1]); - | ^^^^^^ - | - = note: calls in statics are limited to constant functions, tuple structs and tuple variants - = note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)` - -error: aborting due to 40 previous errors +error: aborting due to 39 previous errors -Some errors have detailed explanations: E0015, E0214. -For more information about an error, try `rustc --explain E0015`. +For more information about this error, try `rustc --explain E0214`. diff --git a/tests/ui/privacy/pub-priv-dep/pub-priv1.rs b/tests/ui/privacy/pub-priv-dep/pub-priv1.rs index 877029f3de3..192ca0db8bd 100644 --- a/tests/ui/privacy/pub-priv-dep/pub-priv1.rs +++ b/tests/ui/privacy/pub-priv-dep/pub-priv1.rs @@ -9,10 +9,10 @@ #![deny(exported_private_dependencies)] // This crate is a private dependency -// FIXME: This should trigger. pub extern crate priv_dep; +//~^ ERROR crate `priv_dep` from private dependency 'priv_dep' is re-exported // This crate is a public dependency -extern crate pub_dep; +pub extern crate pub_dep; // This crate is a private dependency extern crate pm; @@ -91,16 +91,16 @@ pub struct AllowedPrivType { pub allowed: OtherType, } -// FIXME: This should trigger. pub use priv_dep::m; -// FIXME: This should trigger. +//~^ ERROR macro `m` from private dependency 'priv_dep' is re-exported pub use pm::fn_like; -// FIXME: This should trigger. +//~^ ERROR macro `fn_like` from private dependency 'pm' is re-exported pub use pm::PmDerive; -// FIXME: This should trigger. +//~^ ERROR macro `PmDerive` from private dependency 'pm' is re-exported pub use pm::pm_attr; +//~^ ERROR macro `pm_attr` from private dependency 'pm' is re-exported -// FIXME: This should trigger. pub use priv_dep::E::V1; +//~^ ERROR variant `V1` from private dependency 'priv_dep' is re-exported fn main() {} diff --git a/tests/ui/privacy/pub-priv-dep/pub-priv1.stderr b/tests/ui/privacy/pub-priv-dep/pub-priv1.stderr index adfe13424cd..9da47827be4 100644 --- a/tests/ui/privacy/pub-priv-dep/pub-priv1.stderr +++ b/tests/ui/privacy/pub-priv-dep/pub-priv1.stderr @@ -1,8 +1,8 @@ -error: type `OtherType` from private dependency 'priv_dep' in public interface - --> $DIR/pub-priv1.rs:29:5 +error: crate `priv_dep` from private dependency 'priv_dep' is re-exported + --> $DIR/pub-priv1.rs:12:1 | -LL | pub field: OtherType, - | ^^^^^^^^^^^^^^^^^^^^ +LL | pub extern crate priv_dep; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ | note: the lint level is defined here --> $DIR/pub-priv1.rs:9:9 @@ -10,6 +10,42 @@ note: the lint level is defined here LL | #![deny(exported_private_dependencies)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +error: macro `m` from private dependency 'priv_dep' is re-exported + --> $DIR/pub-priv1.rs:94:9 + | +LL | pub use priv_dep::m; + | ^^^^^^^^^^^ + +error: macro `fn_like` from private dependency 'pm' is re-exported + --> $DIR/pub-priv1.rs:96:9 + | +LL | pub use pm::fn_like; + | ^^^^^^^^^^^ + +error: derive macro `PmDerive` from private dependency 'pm' is re-exported + --> $DIR/pub-priv1.rs:98:9 + | +LL | pub use pm::PmDerive; + | ^^^^^^^^^^^^ + +error: attribute macro `pm_attr` from private dependency 'pm' is re-exported + --> $DIR/pub-priv1.rs:100:9 + | +LL | pub use pm::pm_attr; + | ^^^^^^^^^^^ + +error: variant `V1` from private dependency 'priv_dep' is re-exported + --> $DIR/pub-priv1.rs:103:9 + | +LL | pub use priv_dep::E::V1; + | ^^^^^^^^^^^^^^^ + +error: type `OtherType` from private dependency 'priv_dep' in public interface + --> $DIR/pub-priv1.rs:29:5 + | +LL | pub field: OtherType, + | ^^^^^^^^^^^^^^^^^^^^ + error: type `OtherType` from private dependency 'priv_dep' in public interface --> $DIR/pub-priv1.rs:36:5 | @@ -90,5 +126,5 @@ LL | impl PubTraitOnPrivate for OtherType {} | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -error: aborting due to 14 previous errors +error: aborting due to 20 previous errors diff --git a/tests/ui/privacy/sealed-traits/false-sealed-traits-note.rs b/tests/ui/privacy/sealed-traits/false-sealed-traits-note.rs new file mode 100644 index 00000000000..13f3065e442 --- /dev/null +++ b/tests/ui/privacy/sealed-traits/false-sealed-traits-note.rs @@ -0,0 +1,13 @@ +// We should not emit sealed traits note, see issue #143392 + +mod inner { + pub trait TraitA {} + + pub trait TraitB: TraitA {} +} + +struct Struct; + +impl inner::TraitB for Struct {} //~ ERROR the trait bound `Struct: TraitA` is not satisfied [E0277] + +fn main(){} diff --git a/tests/ui/privacy/sealed-traits/false-sealed-traits-note.stderr b/tests/ui/privacy/sealed-traits/false-sealed-traits-note.stderr new file mode 100644 index 00000000000..f80d985ad6e --- /dev/null +++ b/tests/ui/privacy/sealed-traits/false-sealed-traits-note.stderr @@ -0,0 +1,20 @@ +error[E0277]: the trait bound `Struct: TraitA` is not satisfied + --> $DIR/false-sealed-traits-note.rs:11:24 + | +LL | impl inner::TraitB for Struct {} + | ^^^^^^ the trait `TraitA` is not implemented for `Struct` + | +help: this trait has no implementations, consider adding one + --> $DIR/false-sealed-traits-note.rs:4:5 + | +LL | pub trait TraitA {} + | ^^^^^^^^^^^^^^^^ +note: required by a bound in `TraitB` + --> $DIR/false-sealed-traits-note.rs:6:23 + | +LL | pub trait TraitB: TraitA {} + | ^^^^^^ required by this bound in `TraitB` + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/proc-macro/meta-macro-hygiene.stdout b/tests/ui/proc-macro/meta-macro-hygiene.stdout index 1734b9afe92..91d16eca1b0 100644 --- a/tests/ui/proc-macro/meta-macro-hygiene.stdout +++ b/tests/ui/proc-macro/meta-macro-hygiene.stdout @@ -49,12 +49,6 @@ crate0::{{expn1}}: parent: crate0::{{expn0}}, call_site_ctxt: #0, def_site_ctxt: crate0::{{expn2}}: parent: crate0::{{expn0}}, call_site_ctxt: #0, def_site_ctxt: #0, kind: Macro(Bang, "produce_it") crate0::{{expn3}}: parent: crate0::{{expn2}}, call_site_ctxt: #3, def_site_ctxt: #0, kind: Macro(Bang, "meta_macro::print_def_site") crate0::{{expn4}}: parent: crate0::{{expn3}}, call_site_ctxt: #4, def_site_ctxt: #0, kind: Macro(Bang, "$crate::dummy") -crate1::{{expnNNN}}: parent: crate0::{{expn0}}, call_site_ctxt: #0, def_site_ctxt: #0, kind: Macro(Attr, "diagnostic::on_unimplemented") -crate1::{{expnNNN}}: parent: crate0::{{expn0}}, call_site_ctxt: #0, def_site_ctxt: #0, kind: Macro(Attr, "diagnostic::on_unimplemented") -crate1::{{expnNNN}}: parent: crate0::{{expn0}}, call_site_ctxt: #0, def_site_ctxt: #0, kind: Macro(Attr, "diagnostic::on_unimplemented") -crate1::{{expnNNN}}: parent: crate0::{{expn0}}, call_site_ctxt: #0, def_site_ctxt: #0, kind: Macro(Attr, "derive") -crate1::{{expnNNN}}: parent: crate0::{{expn0}}, call_site_ctxt: #0, def_site_ctxt: #0, kind: Macro(Attr, "derive") -crate1::{{expnNNN}}: parent: crate0::{{expn0}}, call_site_ctxt: #0, def_site_ctxt: #0, kind: Macro(Bang, "include") SyntaxContexts: #0: parent: #0, outer_mark: (crate0::{{expn0}}, Opaque) diff --git a/tests/ui/proc-macro/nonterminal-token-hygiene.stdout b/tests/ui/proc-macro/nonterminal-token-hygiene.stdout index 42257312a87..63741326e34 100644 --- a/tests/ui/proc-macro/nonterminal-token-hygiene.stdout +++ b/tests/ui/proc-macro/nonterminal-token-hygiene.stdout @@ -72,12 +72,6 @@ crate0::{{expn1}}: parent: crate0::{{expn0}}, call_site_ctxt: #0, def_site_ctxt: crate0::{{expn2}}: parent: crate0::{{expn0}}, call_site_ctxt: #0, def_site_ctxt: #0, kind: Macro(Bang, "outer") crate0::{{expn3}}: parent: crate0::{{expn2}}, call_site_ctxt: #3, def_site_ctxt: #3, kind: Macro(Bang, "inner") crate0::{{expn4}}: parent: crate0::{{expn3}}, call_site_ctxt: #4, def_site_ctxt: #0, kind: Macro(Bang, "print_bang") -crate1::{{expnNNN}}: parent: crate0::{{expn0}}, call_site_ctxt: #0, def_site_ctxt: #0, kind: Macro(Attr, "diagnostic::on_unimplemented") -crate1::{{expnNNN}}: parent: crate0::{{expn0}}, call_site_ctxt: #0, def_site_ctxt: #0, kind: Macro(Attr, "diagnostic::on_unimplemented") -crate1::{{expnNNN}}: parent: crate0::{{expn0}}, call_site_ctxt: #0, def_site_ctxt: #0, kind: Macro(Attr, "diagnostic::on_unimplemented") -crate1::{{expnNNN}}: parent: crate0::{{expn0}}, call_site_ctxt: #0, def_site_ctxt: #0, kind: Macro(Attr, "derive") -crate1::{{expnNNN}}: parent: crate0::{{expn0}}, call_site_ctxt: #0, def_site_ctxt: #0, kind: Macro(Attr, "derive") -crate1::{{expnNNN}}: parent: crate0::{{expn0}}, call_site_ctxt: #0, def_site_ctxt: #0, kind: Macro(Bang, "include") SyntaxContexts: #0: parent: #0, outer_mark: (crate0::{{expn0}}, Opaque) diff --git a/tests/ui/self/elision/ignore-non-reference-lifetimes.rs b/tests/ui/self/elision/ignore-non-reference-lifetimes.rs index ecd669059ed..ce2fb8235cc 100644 --- a/tests/ui/self/elision/ignore-non-reference-lifetimes.rs +++ b/tests/ui/self/elision/ignore-non-reference-lifetimes.rs @@ -4,11 +4,11 @@ struct Foo<'a>(&'a str); impl<'b> Foo<'b> { fn a<'a>(self: Self, a: &'a str) -> &str { - //~^ WARNING lifetime flowing from input to output with different syntax + //~^ WARNING eliding a lifetime that's named elsewhere is confusing a } fn b<'a>(self: Foo<'b>, a: &'a str) -> &str { - //~^ WARNING lifetime flowing from input to output with different syntax + //~^ WARNING eliding a lifetime that's named elsewhere is confusing a } } diff --git a/tests/ui/self/elision/ignore-non-reference-lifetimes.stderr b/tests/ui/self/elision/ignore-non-reference-lifetimes.stderr index 5351bf3c94c..7108fa1a290 100644 --- a/tests/ui/self/elision/ignore-non-reference-lifetimes.stderr +++ b/tests/ui/self/elision/ignore-non-reference-lifetimes.stderr @@ -1,26 +1,28 @@ -warning: lifetime flowing from input to output with different syntax can be confusing +warning: eliding a lifetime that's named elsewhere is confusing --> $DIR/ignore-non-reference-lifetimes.rs:6:30 | LL | fn a<'a>(self: Self, a: &'a str) -> &str { - | ^^ ---- the lifetime gets resolved as `'a` + | ^^ ---- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default -help: one option is to consistently use `'a` +help: consistently use `'a` | LL | fn a<'a>(self: Self, a: &'a str) -> &'a str { | ++ -warning: lifetime flowing from input to output with different syntax can be confusing +warning: eliding a lifetime that's named elsewhere is confusing --> $DIR/ignore-non-reference-lifetimes.rs:10:33 | LL | fn b<'a>(self: Foo<'b>, a: &'a str) -> &str { - | ^^ ---- the lifetime gets resolved as `'a` + | ^^ ---- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL | fn b<'a>(self: Foo<'b>, a: &'a str) -> &'a str { | ++ diff --git a/tests/ui/self/self_lifetime-async.rs b/tests/ui/self/self_lifetime-async.rs index f839ab03a60..0093971fee4 100644 --- a/tests/ui/self/self_lifetime-async.rs +++ b/tests/ui/self/self_lifetime-async.rs @@ -4,13 +4,13 @@ struct Foo<'a>(&'a ()); impl<'a> Foo<'a> { async fn foo<'b>(self: &'b Foo<'a>) -> &() { self.0 } - //~^ WARNING lifetime flowing from input to output with different syntax + //~^ WARNING eliding a lifetime that's named elsewhere is confusing } type Alias = Foo<'static>; impl Alias { async fn bar<'a>(self: &Alias, arg: &'a ()) -> &() { arg } - //~^ WARNING lifetime flowing from input to output with different syntax + //~^ WARNING eliding a lifetime that's named elsewhere is confusing } fn main() {} diff --git a/tests/ui/self/self_lifetime-async.stderr b/tests/ui/self/self_lifetime-async.stderr index a9c1be2e808..43dc96abdc2 100644 --- a/tests/ui/self/self_lifetime-async.stderr +++ b/tests/ui/self/self_lifetime-async.stderr @@ -1,26 +1,28 @@ -warning: lifetime flowing from input to output with different syntax can be confusing +warning: eliding a lifetime that's named elsewhere is confusing --> $DIR/self_lifetime-async.rs:6:29 | LL | async fn foo<'b>(self: &'b Foo<'a>) -> &() { self.0 } - | ^^ --- the lifetime gets resolved as `'b` + | ^^ --- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default -help: one option is to consistently use `'b` +help: consistently use `'b` | LL | async fn foo<'b>(self: &'b Foo<'a>) -> &'b () { self.0 } | ++ -warning: lifetime flowing from input to output with different syntax can be confusing +warning: eliding a lifetime that's named elsewhere is confusing --> $DIR/self_lifetime-async.rs:12:42 | LL | async fn bar<'a>(self: &Alias, arg: &'a ()) -> &() { arg } - | ^^ --- the lifetime gets resolved as `'a` + | ^^ --- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL | async fn bar<'a>(self: &Alias, arg: &'a ()) -> &'a () { arg } | ++ diff --git a/tests/ui/self/self_lifetime.rs b/tests/ui/self/self_lifetime.rs index aaa31f85ad5..190809af22f 100644 --- a/tests/ui/self/self_lifetime.rs +++ b/tests/ui/self/self_lifetime.rs @@ -5,13 +5,13 @@ struct Foo<'a>(&'a ()); impl<'a> Foo<'a> { fn foo<'b>(self: &'b Foo<'a>) -> &() { self.0 } - //~^ WARNING lifetime flowing from input to output with different syntax + //~^ WARNING eliding a lifetime that's named elsewhere is confusing } type Alias = Foo<'static>; impl Alias { fn bar<'a>(self: &Alias, arg: &'a ()) -> &() { arg } - //~^ WARNING lifetime flowing from input to output with different syntax + //~^ WARNING eliding a lifetime that's named elsewhere is confusing } fn main() {} diff --git a/tests/ui/self/self_lifetime.stderr b/tests/ui/self/self_lifetime.stderr index ec676e69cf6..4f9b2fcd2ad 100644 --- a/tests/ui/self/self_lifetime.stderr +++ b/tests/ui/self/self_lifetime.stderr @@ -1,26 +1,28 @@ -warning: lifetime flowing from input to output with different syntax can be confusing +warning: eliding a lifetime that's named elsewhere is confusing --> $DIR/self_lifetime.rs:7:23 | LL | fn foo<'b>(self: &'b Foo<'a>) -> &() { self.0 } - | ^^ --- the lifetime gets resolved as `'b` + | ^^ --- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default -help: one option is to consistently use `'b` +help: consistently use `'b` | LL | fn foo<'b>(self: &'b Foo<'a>) -> &'b () { self.0 } | ++ -warning: lifetime flowing from input to output with different syntax can be confusing +warning: eliding a lifetime that's named elsewhere is confusing --> $DIR/self_lifetime.rs:13:36 | LL | fn bar<'a>(self: &Alias, arg: &'a ()) -> &() { arg } - | ^^ --- the lifetime gets resolved as `'a` + | ^^ --- the same lifetime is elided here | | - | this lifetime flows to the output + | the lifetime is named here | -help: one option is to consistently use `'a` + = help: the same lifetime is referred to in inconsistent ways, making the signature confusing +help: consistently use `'a` | LL | fn bar<'a>(self: &Alias, arg: &'a ()) -> &'a () { arg } | ++ diff --git a/tests/ui/lexical-scopes.rs b/tests/ui/shadowed/shadowing-generic-item.rs index 46cfdf1efa8..c3a0ced04e7 100644 --- a/tests/ui/lexical-scopes.rs +++ b/tests/ui/shadowed/shadowing-generic-item.rs @@ -1,3 +1,5 @@ +//! Test that generic parameters shadow structs and modules with the same name. + struct T { i: i32 } fn f<T>() { let t = T { i: 0 }; //~ ERROR expected struct, variant or union type, found type parameter `T` diff --git a/tests/ui/lexical-scopes.stderr b/tests/ui/shadowed/shadowing-generic-item.stderr index f0eaa1a5c64..55a0bb36ea8 100644 --- a/tests/ui/lexical-scopes.stderr +++ b/tests/ui/shadowed/shadowing-generic-item.stderr @@ -1,5 +1,5 @@ error[E0574]: expected struct, variant or union type, found type parameter `T` - --> $DIR/lexical-scopes.rs:3:13 + --> $DIR/shadowing-generic-item.rs:5:13 | LL | struct T { i: i32 } | - you might have meant to refer to this struct @@ -9,7 +9,7 @@ LL | let t = T { i: 0 }; | ^ not a struct, variant or union type error[E0599]: no function or associated item named `f` found for type parameter `Foo` in the current scope - --> $DIR/lexical-scopes.rs:10:10 + --> $DIR/shadowing-generic-item.rs:12:10 | LL | fn g<Foo>() { | --- function or associated item `f` not found for this type parameter diff --git a/tests/ui/sized-hierarchy/incomplete-inference-issue-143992.next.stderr b/tests/ui/sized-hierarchy/incomplete-inference-issue-143992.next.stderr new file mode 100644 index 00000000000..cf56f42afc8 --- /dev/null +++ b/tests/ui/sized-hierarchy/incomplete-inference-issue-143992.next.stderr @@ -0,0 +1,17 @@ +error[E0308]: mismatched types + --> $DIR/incomplete-inference-issue-143992.rs:27:28 + | +LL | let _x = T::Assoc::new(()); + | ------------- ^^ expected `[u32; 1]`, found `()` + | | + | arguments to this function are incorrect + | +note: associated function defined here + --> $DIR/incomplete-inference-issue-143992.rs:18:8 + | +LL | fn new(r: R) -> R { + | ^^^ ---- + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/sized-hierarchy/incomplete-inference-issue-143992.rs b/tests/ui/sized-hierarchy/incomplete-inference-issue-143992.rs new file mode 100644 index 00000000000..3e3e1dc50e5 --- /dev/null +++ b/tests/ui/sized-hierarchy/incomplete-inference-issue-143992.rs @@ -0,0 +1,29 @@ +//@ compile-flags: --crate-type=lib +//@ revisions: current next +//@ ignore-compare-mode-next-solver (explicit revisions) +//@[current] check-pass +//@[next] compile-flags: -Znext-solver +//@[next] check-fail + +// Test that we avoid incomplete inference when normalizing. Without this, +// `Trait`'s implicit `MetaSized` supertrait requires proving `T::Assoc<_>: MetaSized` +// before checking the `new` arguments, resulting in eagerly constraining the inference +// var to `u32`. This is undesirable and would breaking code. + +pub trait Trait { + type Assoc<G>: OtherTrait<G>; +} + +pub trait OtherTrait<R> { + fn new(r: R) -> R { + r + } +} + +pub fn function<T: Trait>() +where + T::Assoc<[u32; 1]>: Clone, +{ + let _x = T::Assoc::new(()); +//[next]~^ ERROR mismatched types +} diff --git a/tests/ui/sized-hierarchy/overflow.current.stderr b/tests/ui/sized-hierarchy/overflow.current.stderr deleted file mode 100644 index e90548aa78c..00000000000 --- a/tests/ui/sized-hierarchy/overflow.current.stderr +++ /dev/null @@ -1,45 +0,0 @@ -error[E0275]: overflow evaluating the requirement `Element: MetaSized` - --> $DIR/overflow.rs:16:16 - | -LL | struct Element(<Box<Box<Element>> as ParseTokens>::Output); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - | -note: required for `Box<Element>` to implement `ParseTokens` - --> $DIR/overflow.rs:12:31 - | -LL | impl<T: ParseTokens + ?Sized> ParseTokens for Box<T> { - | - ^^^^^^^^^^^ ^^^^^^ - | | - | unsatisfied trait bound introduced here - = note: 1 redundant requirement hidden - = note: required for `Box<Box<Element>>` to implement `ParseTokens` - -error[E0275]: overflow evaluating the requirement `Box<Element>: ParseTokens` - --> $DIR/overflow.rs:18:22 - | -LL | impl ParseTokens for Element { - | ^^^^^^^ - | -note: required for `Box<Box<Element>>` to implement `ParseTokens` - --> $DIR/overflow.rs:12:31 - | -LL | impl<T: ParseTokens + ?Sized> ParseTokens for Box<T> { - | ----------- ^^^^^^^^^^^ ^^^^^^ - | | - | unsatisfied trait bound introduced here -note: required because it appears within the type `Element` - --> $DIR/overflow.rs:16:8 - | -LL | struct Element(<Box<Box<Element>> as ParseTokens>::Output); - | ^^^^^^^ -note: required by a bound in `ParseTokens` - --> $DIR/overflow.rs:9:1 - | -LL | / trait ParseTokens { -LL | | type Output; -LL | | } - | |_^ required by this bound in `ParseTokens` - -error: aborting due to 2 previous errors - -For more information about this error, try `rustc --explain E0275`. diff --git a/tests/ui/sized-hierarchy/overflow.rs b/tests/ui/sized-hierarchy/overflow.rs index e1af4885e53..f8e5dd5d402 100644 --- a/tests/ui/sized-hierarchy/overflow.rs +++ b/tests/ui/sized-hierarchy/overflow.rs @@ -1,9 +1,13 @@ //@ compile-flags: --crate-type=lib //@ revisions: current next //@ ignore-compare-mode-next-solver (explicit revisions) +//@[current] check-pass //@[next] check-pass //@[next] compile-flags: -Znext-solver +// FIXME(sized_hierarchy): this is expected to fail in the old solver when there +// isn't a temporary revert of the `sized_hierarchy` feature + use std::marker::PhantomData; trait ParseTokens { @@ -14,8 +18,6 @@ impl<T: ParseTokens + ?Sized> ParseTokens for Box<T> { } struct Element(<Box<Box<Element>> as ParseTokens>::Output); -//[current]~^ ERROR overflow evaluating impl ParseTokens for Element { -//[current]~^ ERROR overflow evaluating type Output = (); } diff --git a/tests/ui/specialization/const_trait_impl.stderr b/tests/ui/specialization/const_trait_impl.stderr index b9c768812c8..a21a48997ee 100644 --- a/tests/ui/specialization/const_trait_impl.stderr +++ b/tests/ui/specialization/const_trait_impl.stderr @@ -1,57 +1,57 @@ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/const_trait_impl.rs:36:9 | LL | impl<T: [const] Debug> const A for T { | ^^^^^^^ can't be applied to `Debug` | -note: `Debug` can't be used with `[const]` because it isn't annotated with `#[const_trait]` +note: `Debug` can't be used with `[const]` because it isn't `const` --> $SRC_DIR/core/src/fmt/mod.rs:LL:COL -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/const_trait_impl.rs:42:9 | LL | impl<T: [const] Debug + [const] Sup> const A for T { | ^^^^^^^ can't be applied to `Debug` | -note: `Debug` can't be used with `[const]` because it isn't annotated with `#[const_trait]` +note: `Debug` can't be used with `[const]` because it isn't `const` --> $SRC_DIR/core/src/fmt/mod.rs:LL:COL -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/const_trait_impl.rs:48:9 | LL | impl<T: [const] Debug + [const] Sub> const A for T { | ^^^^^^^ can't be applied to `Debug` | -note: `Debug` can't be used with `[const]` because it isn't annotated with `#[const_trait]` +note: `Debug` can't be used with `[const]` because it isn't `const` --> $SRC_DIR/core/src/fmt/mod.rs:LL:COL -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/const_trait_impl.rs:42:9 | LL | impl<T: [const] Debug + [const] Sup> const A for T { | ^^^^^^^ can't be applied to `Debug` | -note: `Debug` can't be used with `[const]` because it isn't annotated with `#[const_trait]` +note: `Debug` can't be used with `[const]` because it isn't `const` --> $SRC_DIR/core/src/fmt/mod.rs:LL:COL = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/const_trait_impl.rs:36:9 | LL | impl<T: [const] Debug> const A for T { | ^^^^^^^ can't be applied to `Debug` | -note: `Debug` can't be used with `[const]` because it isn't annotated with `#[const_trait]` +note: `Debug` can't be used with `[const]` because it isn't `const` --> $SRC_DIR/core/src/fmt/mod.rs:LL:COL = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/const_trait_impl.rs:48:9 | LL | impl<T: [const] Debug + [const] Sub> const A for T { | ^^^^^^^ can't be applied to `Debug` | -note: `Debug` can't be used with `[const]` because it isn't annotated with `#[const_trait]` +note: `Debug` can't be used with `[const]` because it isn't `const` --> $SRC_DIR/core/src/fmt/mod.rs:LL:COL = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` diff --git a/tests/ui/stability-attribute/missing-const-stability.rs b/tests/ui/stability-attribute/missing-const-stability.rs index c3e72e83948..8a37f19ffb0 100644 --- a/tests/ui/stability-attribute/missing-const-stability.rs +++ b/tests/ui/stability-attribute/missing-const-stability.rs @@ -20,8 +20,7 @@ impl Foo { } #[stable(feature = "stable", since = "1.0.0")] -#[const_trait] -pub trait Bar { +pub const trait Bar { //~^ ERROR trait has missing const stability attribute #[stable(feature = "stable", since = "1.0.0")] fn fun(); diff --git a/tests/ui/stability-attribute/missing-const-stability.stderr b/tests/ui/stability-attribute/missing-const-stability.stderr index 09461e6fb54..70a2450c53a 100644 --- a/tests/ui/stability-attribute/missing-const-stability.stderr +++ b/tests/ui/stability-attribute/missing-const-stability.stderr @@ -5,9 +5,9 @@ LL | pub const fn foo() {} | ^^^^^^^^^^^^^^^^^^^^^ error: trait has missing const stability attribute - --> $DIR/missing-const-stability.rs:24:1 + --> $DIR/missing-const-stability.rs:23:1 | -LL | / pub trait Bar { +LL | / pub const trait Bar { LL | | LL | | #[stable(feature = "stable", since = "1.0.0")] LL | | fn fun(); @@ -15,7 +15,7 @@ LL | | } | |_^ error: function has missing const stability attribute - --> $DIR/missing-const-stability.rs:37:1 + --> $DIR/missing-const-stability.rs:36:1 | LL | pub const unsafe fn size_of_val<T>(x: *const T) -> usize { 42 } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/structs/default-field-values/const-trait-default-field-value.rs b/tests/ui/structs/default-field-values/const-trait-default-field-value.rs new file mode 100644 index 00000000000..60c22efabc4 --- /dev/null +++ b/tests/ui/structs/default-field-values/const-trait-default-field-value.rs @@ -0,0 +1,37 @@ +//@ check-pass + +// Ensure that `default_field_values` and `const_default` interact properly. + +#![feature(const_default)] +#![feature(const_trait_impl)] +#![feature(default_field_values)] +#![feature(derive_const)] + +#[derive(PartialEq, Eq, Debug)] +#[derive_const(Default)] +struct S { + r: Option<String> = <Option<_> as Default>::default(), + s: String = String::default(), + o: Option<String> = Option::<String>::default(), + p: std::marker::PhantomData<()> = std::marker::PhantomData::default(), + q: Option<String> = <Option<String> as Default>::default(), + t: Option<String> = Option::default(), + v: Option<String> = const { Option::default() }, +} + +const _: S = S { .. }; +const _: S = const { S { .. } }; +const _: S = S::default(); +const _: S = const { S::default() }; + +fn main() { + let s = S { .. }; + assert_eq!(s.r, None); + assert_eq!(&s.s, ""); + assert_eq!(s.o, None); + assert_eq!(s.p, std::marker::PhantomData); + assert_eq!(s.q, None); + assert_eq!(s.t, None); + assert_eq!(s.v, None); + assert_eq!(s, S::default()); +} diff --git a/tests/ui/symbol-names/basic.legacy.stderr b/tests/ui/symbol-names/basic.legacy.stderr index 167262dcf06..a028f433172 100644 --- a/tests/ui/symbol-names/basic.legacy.stderr +++ b/tests/ui/symbol-names/basic.legacy.stderr @@ -1,10 +1,10 @@ -error: symbol-name(_ZN5basic4main17hc88b9d80a69d119aE) +error: symbol-name(_ZN5basic4main17h1dddcfd03744167fE) --> $DIR/basic.rs:8:1 | LL | #[rustc_symbol_name] | ^^^^^^^^^^^^^^^^^^^^ -error: demangling(basic::main::hc88b9d80a69d119a) +error: demangling(basic::main::h1dddcfd03744167f) --> $DIR/basic.rs:8:1 | LL | #[rustc_symbol_name] diff --git a/tests/ui/symbol-names/issue-60925.legacy.stderr b/tests/ui/symbol-names/issue-60925.legacy.stderr index 4e17bdc4577..14cbd877d9f 100644 --- a/tests/ui/symbol-names/issue-60925.legacy.stderr +++ b/tests/ui/symbol-names/issue-60925.legacy.stderr @@ -1,10 +1,10 @@ -error: symbol-name(_ZN11issue_609253foo37Foo$LT$issue_60925..llv$u6d$..Foo$GT$3foo17hbddb77d6f71afb32E) +error: symbol-name(_ZN11issue_609253foo37Foo$LT$issue_60925..llv$u6d$..Foo$GT$3foo17h4b3099ec5dc5d306E) --> $DIR/issue-60925.rs:21:9 | LL | #[rustc_symbol_name] | ^^^^^^^^^^^^^^^^^^^^ -error: demangling(issue_60925::foo::Foo<issue_60925::llvm::Foo>::foo::hbddb77d6f71afb32) +error: demangling(issue_60925::foo::Foo<issue_60925::llvm::Foo>::foo::h4b3099ec5dc5d306) --> $DIR/issue-60925.rs:21:9 | LL | #[rustc_symbol_name] diff --git a/tests/ui/struct-ctor-mangling.rs b/tests/ui/symbol-names/struct-constructor-mangling.rs index f32cbb7aaae..ec8791e2154 100644 --- a/tests/ui/struct-ctor-mangling.rs +++ b/tests/ui/symbol-names/struct-constructor-mangling.rs @@ -1,3 +1,5 @@ +//! Test that the symbol mangling of Foo-the-constructor-function versus Foo-the-type do not collide + //@ run-pass fn size_of_val<T>(_: &T) -> usize { @@ -6,8 +8,6 @@ fn size_of_val<T>(_: &T) -> usize { struct Foo(#[allow(dead_code)] i64); -// Test that the (symbol) mangling of `Foo` (the `struct` type) and that of -// `typeof Foo` (the function type of the `struct` constructor) don't collide. fn main() { size_of_val(&Foo(0)); size_of_val(&Foo); diff --git a/tests/ui/thir-print/thir-tree-match.stdout b/tests/ui/thir-print/thir-tree-match.stdout index 910582ae4d9..2049c531abd 100644 --- a/tests/ui/thir-print/thir-tree-match.stdout +++ b/tests/ui/thir-print/thir-tree-match.stdout @@ -94,7 +94,7 @@ body: did: DefId(0:10 ~ thir_tree_match[fcf8]::Foo) variants: [VariantDef { def_id: DefId(0:11 ~ thir_tree_match[fcf8]::Foo::FooOne), ctor: Some((Fn, DefId(0:12 ~ thir_tree_match[fcf8]::Foo::FooOne::{constructor#0}))), name: "FooOne", discr: Relative(0), fields: [FieldDef { did: DefId(0:13 ~ thir_tree_match[fcf8]::Foo::FooOne::0), name: "0", vis: Restricted(DefId(0:0 ~ thir_tree_match[fcf8])), safety: Safe, value: None }], tainted: None, flags: }, VariantDef { def_id: DefId(0:14 ~ thir_tree_match[fcf8]::Foo::FooTwo), ctor: Some((Const, DefId(0:15 ~ thir_tree_match[fcf8]::Foo::FooTwo::{constructor#0}))), name: "FooTwo", discr: Relative(1), fields: [], tainted: None, flags: }] flags: IS_ENUM - repr: ReprOptions { int: None, align: None, pack: None, flags: , field_shuffle_seed: 3477539199540094892 } + repr: ReprOptions { int: None, align: None, pack: None, flags: , field_shuffle_seed: 13397682652773712997 } args: [] variant_index: 0 subpatterns: [ @@ -108,7 +108,7 @@ body: did: DefId(0:3 ~ thir_tree_match[fcf8]::Bar) variants: [VariantDef { def_id: DefId(0:4 ~ thir_tree_match[fcf8]::Bar::First), ctor: Some((Const, DefId(0:5 ~ thir_tree_match[fcf8]::Bar::First::{constructor#0}))), name: "First", discr: Relative(0), fields: [], tainted: None, flags: }, VariantDef { def_id: DefId(0:6 ~ thir_tree_match[fcf8]::Bar::Second), ctor: Some((Const, DefId(0:7 ~ thir_tree_match[fcf8]::Bar::Second::{constructor#0}))), name: "Second", discr: Relative(1), fields: [], tainted: None, flags: }, VariantDef { def_id: DefId(0:8 ~ thir_tree_match[fcf8]::Bar::Third), ctor: Some((Const, DefId(0:9 ~ thir_tree_match[fcf8]::Bar::Third::{constructor#0}))), name: "Third", discr: Relative(2), fields: [], tainted: None, flags: }] flags: IS_ENUM - repr: ReprOptions { int: None, align: None, pack: None, flags: , field_shuffle_seed: 10333377570083945360 } + repr: ReprOptions { int: None, align: None, pack: None, flags: , field_shuffle_seed: 7908585036048874241 } args: [] variant_index: 0 subpatterns: [] @@ -156,7 +156,7 @@ body: did: DefId(0:10 ~ thir_tree_match[fcf8]::Foo) variants: [VariantDef { def_id: DefId(0:11 ~ thir_tree_match[fcf8]::Foo::FooOne), ctor: Some((Fn, DefId(0:12 ~ thir_tree_match[fcf8]::Foo::FooOne::{constructor#0}))), name: "FooOne", discr: Relative(0), fields: [FieldDef { did: DefId(0:13 ~ thir_tree_match[fcf8]::Foo::FooOne::0), name: "0", vis: Restricted(DefId(0:0 ~ thir_tree_match[fcf8])), safety: Safe, value: None }], tainted: None, flags: }, VariantDef { def_id: DefId(0:14 ~ thir_tree_match[fcf8]::Foo::FooTwo), ctor: Some((Const, DefId(0:15 ~ thir_tree_match[fcf8]::Foo::FooTwo::{constructor#0}))), name: "FooTwo", discr: Relative(1), fields: [], tainted: None, flags: }] flags: IS_ENUM - repr: ReprOptions { int: None, align: None, pack: None, flags: , field_shuffle_seed: 3477539199540094892 } + repr: ReprOptions { int: None, align: None, pack: None, flags: , field_shuffle_seed: 13397682652773712997 } args: [] variant_index: 0 subpatterns: [ @@ -208,7 +208,7 @@ body: did: DefId(0:10 ~ thir_tree_match[fcf8]::Foo) variants: [VariantDef { def_id: DefId(0:11 ~ thir_tree_match[fcf8]::Foo::FooOne), ctor: Some((Fn, DefId(0:12 ~ thir_tree_match[fcf8]::Foo::FooOne::{constructor#0}))), name: "FooOne", discr: Relative(0), fields: [FieldDef { did: DefId(0:13 ~ thir_tree_match[fcf8]::Foo::FooOne::0), name: "0", vis: Restricted(DefId(0:0 ~ thir_tree_match[fcf8])), safety: Safe, value: None }], tainted: None, flags: }, VariantDef { def_id: DefId(0:14 ~ thir_tree_match[fcf8]::Foo::FooTwo), ctor: Some((Const, DefId(0:15 ~ thir_tree_match[fcf8]::Foo::FooTwo::{constructor#0}))), name: "FooTwo", discr: Relative(1), fields: [], tainted: None, flags: }] flags: IS_ENUM - repr: ReprOptions { int: None, align: None, pack: None, flags: , field_shuffle_seed: 3477539199540094892 } + repr: ReprOptions { int: None, align: None, pack: None, flags: , field_shuffle_seed: 13397682652773712997 } args: [] variant_index: 1 subpatterns: [] diff --git a/tests/ui/traits/const-traits/conditionally-const-invalid-places.stderr b/tests/ui/traits/const-traits/conditionally-const-invalid-places.stderr index d0dd9502915..010b1584643 100644 --- a/tests/ui/traits/const-traits/conditionally-const-invalid-places.stderr +++ b/tests/ui/traits/const-traits/conditionally-const-invalid-places.stderr @@ -72,7 +72,7 @@ error: `[const]` is not allowed here LL | type Type<T: [const] Trait>: [const] Trait; | ^^^^^^^ | -note: associated types in non-`#[const_trait]` traits cannot have `[const]` trait bounds +note: associated types in non-`const` traits cannot have `[const]` trait bounds --> $DIR/conditionally-const-invalid-places.rs:25:5 | LL | type Type<T: [const] Trait>: [const] Trait; @@ -84,7 +84,7 @@ error: `[const]` is not allowed here LL | type Type<T: [const] Trait>: [const] Trait; | ^^^^^^^ | -note: associated types in non-`#[const_trait]` traits cannot have `[const]` trait bounds +note: associated types in non-`const` traits cannot have `[const]` trait bounds --> $DIR/conditionally-const-invalid-places.rs:25:5 | LL | type Type<T: [const] Trait>: [const] Trait; @@ -180,7 +180,7 @@ error: `[const]` is not allowed here LL | trait Child0: [const] Trait {} | ^^^^^^^ | -note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds +note: this trait is not `const`, so it cannot have `[const]` trait bounds --> $DIR/conditionally-const-invalid-places.rs:52:1 | LL | trait Child0: [const] Trait {} @@ -192,7 +192,7 @@ error: `[const]` is not allowed here LL | trait Child1 where Self: [const] Trait {} | ^^^^^^^ | -note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds +note: this trait is not `const`, so it cannot have `[const]` trait bounds --> $DIR/conditionally-const-invalid-places.rs:53:1 | LL | trait Child1 where Self: [const] Trait {} diff --git a/tests/ui/traits/const-traits/const-assoc-bound-in-trait-wc.rs b/tests/ui/traits/const-traits/const-assoc-bound-in-trait-wc.rs new file mode 100644 index 00000000000..81acce65f2a --- /dev/null +++ b/tests/ui/traits/const-traits/const-assoc-bound-in-trait-wc.rs @@ -0,0 +1,13 @@ +//@ check-pass + +#![feature(const_clone)] +#![feature(const_trait_impl)] + +#[const_trait] +trait A where Self::Target: [const] Clone { + type Target; +} + +const fn foo<T>() where T: [const] A {} + +fn main() {} diff --git a/tests/ui/traits/const-traits/const-bounds-non-const-trait.rs b/tests/ui/traits/const-traits/const-bounds-non-const-trait.rs index ae31d9ae0ac..baded179201 100644 --- a/tests/ui/traits/const-traits/const-bounds-non-const-trait.rs +++ b/tests/ui/traits/const-traits/const-bounds-non-const-trait.rs @@ -4,10 +4,10 @@ trait NonConst {} const fn perform<T: [const] NonConst>() {} -//~^ ERROR `[const]` can only be applied to `#[const_trait]` traits -//~| ERROR `[const]` can only be applied to `#[const_trait]` traits +//~^ ERROR `[const]` can only be applied to `const` traits +//~| ERROR `[const]` can only be applied to `const` traits fn operate<T: const NonConst>() {} -//~^ ERROR `const` can only be applied to `#[const_trait]` traits +//~^ ERROR `const` can only be applied to `const` traits fn main() {} diff --git a/tests/ui/traits/const-traits/const-bounds-non-const-trait.stderr b/tests/ui/traits/const-traits/const-bounds-non-const-trait.stderr index 6c68e4ec3ac..304d81bb917 100644 --- a/tests/ui/traits/const-traits/const-bounds-non-const-trait.stderr +++ b/tests/ui/traits/const-traits/const-bounds-non-const-trait.stderr @@ -1,33 +1,33 @@ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/const-bounds-non-const-trait.rs:6:21 | LL | const fn perform<T: [const] NonConst>() {} | ^^^^^^^ can't be applied to `NonConst` | -help: mark `NonConst` as `#[const_trait]` to allow it to have `const` implementations +help: mark `NonConst` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait NonConst {} | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/const-bounds-non-const-trait.rs:6:21 | LL | const fn perform<T: [const] NonConst>() {} | ^^^^^^^ can't be applied to `NonConst` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: mark `NonConst` as `#[const_trait]` to allow it to have `const` implementations +help: mark `NonConst` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait NonConst {} | ++++++++++++++ -error: `const` can only be applied to `#[const_trait]` traits +error: `const` can only be applied to `const` traits --> $DIR/const-bounds-non-const-trait.rs:10:15 | LL | fn operate<T: const NonConst>() {} | ^^^^^ can't be applied to `NonConst` | -help: mark `NonConst` as `#[const_trait]` to allow it to have `const` implementations +help: mark `NonConst` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait NonConst {} | ++++++++++++++ diff --git a/tests/ui/traits/const-traits/const-impl-requires-const-trait.rs b/tests/ui/traits/const-traits/const-impl-requires-const-trait.rs index 6bea664b65f..176ae091a41 100644 --- a/tests/ui/traits/const-traits/const-impl-requires-const-trait.rs +++ b/tests/ui/traits/const-traits/const-impl-requires-const-trait.rs @@ -4,6 +4,6 @@ pub trait A {} impl const A for () {} -//~^ ERROR: const `impl` for trait `A` which is not marked with `#[const_trait]` +//~^ ERROR: const `impl` for trait `A` which is not `const` fn main() {} diff --git a/tests/ui/traits/const-traits/const-impl-requires-const-trait.stderr b/tests/ui/traits/const-traits/const-impl-requires-const-trait.stderr index c728eda069e..bf73436b78d 100644 --- a/tests/ui/traits/const-traits/const-impl-requires-const-trait.stderr +++ b/tests/ui/traits/const-traits/const-impl-requires-const-trait.stderr @@ -1,12 +1,12 @@ -error: const `impl` for trait `A` which is not marked with `#[const_trait]` +error: const `impl` for trait `A` which is not `const` --> $DIR/const-impl-requires-const-trait.rs:6:12 | LL | impl const A for () {} | ^ this trait is not `const` | - = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` + = note: marking a trait with `const` ensures all default method bodies are `const` = note: adding a non-const method body in the future would be a breaking change -help: mark `A` as `#[const_trait]` to allow it to have `const` implementations +help: mark `A` as `const` to allow it to have `const` implementations | LL | #[const_trait] pub trait A {} | ++++++++++++++ diff --git a/tests/ui/traits/const-traits/const-impl-trait.rs b/tests/ui/traits/const-traits/const-impl-trait.rs index dc960422a4a..da28d9a47c3 100644 --- a/tests/ui/traits/const-traits/const-impl-trait.rs +++ b/tests/ui/traits/const-traits/const-impl-trait.rs @@ -1,7 +1,7 @@ //@ compile-flags: -Znext-solver //@ known-bug: #110395 -// Broken until we have `const PartialEq` impl in stdlib +// Broken until `(): const PartialEq` #![allow(incomplete_features)] #![feature(const_trait_impl, const_cmp, const_destruct)] diff --git a/tests/ui/traits/const-traits/const-trait-bounds-trait-objects.rs b/tests/ui/traits/const-traits/const-trait-bounds-trait-objects.rs index 1d1da9b0e3d..658132441c2 100644 --- a/tests/ui/traits/const-traits/const-trait-bounds-trait-objects.rs +++ b/tests/ui/traits/const-traits/const-trait-bounds-trait-objects.rs @@ -1,9 +1,7 @@ #![feature(const_trait_impl)] -// FIXME(const_trait_impl) add effects //@ edition: 2021 -#[const_trait] -trait Trait {} +const trait Trait {} fn main() { let _: &dyn const Trait; //~ ERROR const trait bounds are not allowed in trait object types @@ -14,7 +12,7 @@ fn main() { trait NonConst {} const fn handle(_: &dyn const NonConst) {} //~^ ERROR const trait bounds are not allowed in trait object types -//~| ERROR `const` can only be applied to `#[const_trait]` traits +//~| ERROR `const` can only be applied to `const` traits const fn take(_: &dyn [const] NonConst) {} //~^ ERROR `[const]` is not allowed here -//~| ERROR `[const]` can only be applied to `#[const_trait]` traits +//~| ERROR `[const]` can only be applied to `const` traits diff --git a/tests/ui/traits/const-traits/const-trait-bounds-trait-objects.stderr b/tests/ui/traits/const-traits/const-trait-bounds-trait-objects.stderr index 06e0493024c..3ba5da39106 100644 --- a/tests/ui/traits/const-traits/const-trait-bounds-trait-objects.stderr +++ b/tests/ui/traits/const-traits/const-trait-bounds-trait-objects.stderr @@ -1,11 +1,11 @@ error: const trait bounds are not allowed in trait object types - --> $DIR/const-trait-bounds-trait-objects.rs:9:17 + --> $DIR/const-trait-bounds-trait-objects.rs:7:17 | LL | let _: &dyn const Trait; | ^^^^^^^^^^^ error: `[const]` is not allowed here - --> $DIR/const-trait-bounds-trait-objects.rs:10:17 + --> $DIR/const-trait-bounds-trait-objects.rs:8:17 | LL | let _: &dyn [const] Trait; | ^^^^^^^ @@ -13,37 +13,37 @@ LL | let _: &dyn [const] Trait; = note: trait objects cannot have `[const]` trait bounds error: const trait bounds are not allowed in trait object types - --> $DIR/const-trait-bounds-trait-objects.rs:15:25 + --> $DIR/const-trait-bounds-trait-objects.rs:13:25 | LL | const fn handle(_: &dyn const NonConst) {} | ^^^^^^^^^^^^^^ error: `[const]` is not allowed here - --> $DIR/const-trait-bounds-trait-objects.rs:18:23 + --> $DIR/const-trait-bounds-trait-objects.rs:16:23 | LL | const fn take(_: &dyn [const] NonConst) {} | ^^^^^^^ | = note: trait objects cannot have `[const]` trait bounds -error: `const` can only be applied to `#[const_trait]` traits - --> $DIR/const-trait-bounds-trait-objects.rs:15:25 +error: `const` can only be applied to `const` traits + --> $DIR/const-trait-bounds-trait-objects.rs:13:25 | LL | const fn handle(_: &dyn const NonConst) {} | ^^^^^ can't be applied to `NonConst` | -help: mark `NonConst` as `#[const_trait]` to allow it to have `const` implementations +help: mark `NonConst` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait NonConst {} | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits - --> $DIR/const-trait-bounds-trait-objects.rs:18:23 +error: `[const]` can only be applied to `const` traits + --> $DIR/const-trait-bounds-trait-objects.rs:16:23 | LL | const fn take(_: &dyn [const] NonConst) {} | ^^^^^^^ can't be applied to `NonConst` | -help: mark `NonConst` as `#[const_trait]` to allow it to have `const` implementations +help: mark `NonConst` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait NonConst {} | ++++++++++++++ diff --git a/tests/ui/traits/const-traits/const_derives/derive-const-gate.rs b/tests/ui/traits/const-traits/const_derives/derive-const-gate.rs index 04fea1189ae..c0796907855 100644 --- a/tests/ui/traits/const-traits/const_derives/derive-const-gate.rs +++ b/tests/ui/traits/const-traits/const_derives/derive-const-gate.rs @@ -1,5 +1,5 @@ #[derive_const(Debug)] //~ ERROR use of unstable library feature -//~^ ERROR const `impl` for trait `Debug` which is not marked with `#[const_trait]` +//~^ ERROR const `impl` for trait `Debug` which is not `const` //~| ERROR cannot call non-const method pub struct S; diff --git a/tests/ui/traits/const-traits/const_derives/derive-const-gate.stderr b/tests/ui/traits/const-traits/const_derives/derive-const-gate.stderr index 5bde358001c..cbc62d602a4 100644 --- a/tests/ui/traits/const-traits/const_derives/derive-const-gate.stderr +++ b/tests/ui/traits/const-traits/const_derives/derive-const-gate.stderr @@ -4,16 +4,17 @@ error[E0658]: use of unstable library feature `derive_const` LL | #[derive_const(Debug)] | ^^^^^^^^^^^^ | + = note: see issue #118304 <https://github.com/rust-lang/rust/issues/118304> for more information = help: add `#![feature(derive_const)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date -error: const `impl` for trait `Debug` which is not marked with `#[const_trait]` +error: const `impl` for trait `Debug` which is not `const` --> $DIR/derive-const-gate.rs:1:16 | LL | #[derive_const(Debug)] | ^^^^^ this trait is not `const` | - = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` + = note: marking a trait with `const` ensures all default method bodies are `const` = note: adding a non-const method body in the future would be a breaking change error[E0015]: cannot call non-const method `Formatter::<'_>::write_str` in constant functions diff --git a/tests/ui/traits/const-traits/const_derives/derive-const-non-const-type.stderr b/tests/ui/traits/const-traits/const_derives/derive-const-non-const-type.stderr index c0bd360ebe5..93638801895 100644 --- a/tests/ui/traits/const-traits/const_derives/derive-const-non-const-type.stderr +++ b/tests/ui/traits/const-traits/const_derives/derive-const-non-const-type.stderr @@ -1,10 +1,10 @@ -error: const `impl` for trait `Debug` which is not marked with `#[const_trait]` +error: const `impl` for trait `Debug` which is not `const` --> $DIR/derive-const-non-const-type.rs:12:16 | LL | #[derive_const(Debug)] | ^^^^^ this trait is not `const` | - = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` + = note: marking a trait with `const` ensures all default method bodies are `const` = note: adding a non-const method body in the future would be a breaking change error[E0015]: cannot call non-const method `Formatter::<'_>::debug_tuple_field1_finish` in constant functions diff --git a/tests/ui/traits/const-traits/ice-119717-constant-lifetime.rs b/tests/ui/traits/const-traits/ice-119717-constant-lifetime.rs index e53b87274d3..47c85980aca 100644 --- a/tests/ui/traits/const-traits/ice-119717-constant-lifetime.rs +++ b/tests/ui/traits/const-traits/ice-119717-constant-lifetime.rs @@ -4,7 +4,7 @@ use std::ops::FromResidual; impl<T> const FromResidual for T { - //~^ ERROR const `impl` for trait `FromResidual` which is not marked with `#[const_trait]` + //~^ ERROR const `impl` for trait `FromResidual` which is not `const` //~| ERROR type parameter `T` must be used as the type parameter for some local type fn from_residual(t: T) -> _ { //~^ ERROR the placeholder `_` is not allowed diff --git a/tests/ui/traits/const-traits/ice-119717-constant-lifetime.stderr b/tests/ui/traits/const-traits/ice-119717-constant-lifetime.stderr index a165ef12060..5c5fba95f02 100644 --- a/tests/ui/traits/const-traits/ice-119717-constant-lifetime.stderr +++ b/tests/ui/traits/const-traits/ice-119717-constant-lifetime.stderr @@ -1,10 +1,10 @@ -error: const `impl` for trait `FromResidual` which is not marked with `#[const_trait]` +error: const `impl` for trait `FromResidual` which is not `const` --> $DIR/ice-119717-constant-lifetime.rs:6:15 | LL | impl<T> const FromResidual for T { | ^^^^^^^^^^^^ this trait is not `const` | - = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` + = note: marking a trait with `const` ensures all default method bodies are `const` = note: adding a non-const method body in the future would be a breaking change error[E0210]: type parameter `T` must be used as the type parameter for some local type (e.g., `MyStruct<T>`) diff --git a/tests/ui/traits/const-traits/ice-126148-failed-to-normalize.rs b/tests/ui/traits/const-traits/ice-126148-failed-to-normalize.rs index 3473be565c1..5e368b9e6a9 100644 --- a/tests/ui/traits/const-traits/ice-126148-failed-to-normalize.rs +++ b/tests/ui/traits/const-traits/ice-126148-failed-to-normalize.rs @@ -6,11 +6,11 @@ struct TryMe; struct Error; impl const FromResidual<Error> for TryMe {} -//~^ ERROR const `impl` for trait `FromResidual` which is not marked with `#[const_trait]` +//~^ ERROR const `impl` for trait `FromResidual` which is not `const` //~| ERROR not all trait items implemented impl const Try for TryMe { - //~^ ERROR const `impl` for trait `Try` which is not marked with `#[const_trait]` + //~^ ERROR const `impl` for trait `Try` which is not `const` //~| ERROR not all trait items implemented type Output = (); type Residual = Error; diff --git a/tests/ui/traits/const-traits/ice-126148-failed-to-normalize.stderr b/tests/ui/traits/const-traits/ice-126148-failed-to-normalize.stderr index 41f99c2d375..849d6522cd6 100644 --- a/tests/ui/traits/const-traits/ice-126148-failed-to-normalize.stderr +++ b/tests/ui/traits/const-traits/ice-126148-failed-to-normalize.stderr @@ -1,10 +1,10 @@ -error: const `impl` for trait `FromResidual` which is not marked with `#[const_trait]` +error: const `impl` for trait `FromResidual` which is not `const` --> $DIR/ice-126148-failed-to-normalize.rs:8:12 | LL | impl const FromResidual<Error> for TryMe {} | ^^^^^^^^^^^^^^^^^^^ this trait is not `const` | - = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` + = note: marking a trait with `const` ensures all default method bodies are `const` = note: adding a non-const method body in the future would be a breaking change error[E0046]: not all trait items implemented, missing: `from_residual` @@ -15,13 +15,13 @@ LL | impl const FromResidual<Error> for TryMe {} | = help: implement the missing item: `fn from_residual(_: Error) -> Self { todo!() }` -error: const `impl` for trait `Try` which is not marked with `#[const_trait]` +error: const `impl` for trait `Try` which is not `const` --> $DIR/ice-126148-failed-to-normalize.rs:12:12 | LL | impl const Try for TryMe { | ^^^ this trait is not `const` | - = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` + = note: marking a trait with `const` ensures all default method bodies are `const` = note: adding a non-const method body in the future would be a breaking change error[E0046]: not all trait items implemented, missing: `from_output`, `branch` diff --git a/tests/ui/traits/const-traits/imply-always-const.rs b/tests/ui/traits/const-traits/imply-always-const.rs new file mode 100644 index 00000000000..f6cab0681ec --- /dev/null +++ b/tests/ui/traits/const-traits/imply-always-const.rs @@ -0,0 +1,19 @@ +//@ check-pass + +#![feature(const_trait_impl)] + +#[const_trait] +trait A where Self::Assoc: const B { + type Assoc; +} + +#[const_trait] +trait B {} + +fn needs_b<T: const B>() {} + +fn test<T: A>() { + needs_b::<T::Assoc>(); +} + +fn main() {} diff --git a/tests/ui/traits/const-traits/match-non-const-eq.gated.stderr b/tests/ui/traits/const-traits/match-non-const-eq.gated.stderr deleted file mode 100644 index 89e59e5db6e..00000000000 --- a/tests/ui/traits/const-traits/match-non-const-eq.gated.stderr +++ /dev/null @@ -1,12 +0,0 @@ -error[E0015]: cannot match on `str` in constant functions - --> $DIR/match-non-const-eq.rs:7:9 - | -LL | "a" => (), //FIXME [gated]~ ERROR can't compare `str` with `str` in const contexts - | ^^^ - | - = note: `str` cannot be compared in compile-time, and therefore cannot be used in `match`es - = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants - -error: aborting due to 1 previous error - -For more information about this error, try `rustc --explain E0015`. diff --git a/tests/ui/traits/const-traits/match-non-const-eq.rs b/tests/ui/traits/const-traits/match-non-const-eq.rs index 73f8af86bd0..03adb8dc5a4 100644 --- a/tests/ui/traits/const-traits/match-non-const-eq.rs +++ b/tests/ui/traits/const-traits/match-non-const-eq.rs @@ -1,11 +1,12 @@ -//@ known-bug: #110395 //@ revisions: stock gated -#![cfg_attr(gated, feature(const_trait_impl))] +#![cfg_attr(gated, feature(const_trait_impl, const_cmp))] +//@[gated] check-pass const fn foo(input: &'static str) { match input { - "a" => (), //FIXME [gated]~ ERROR can't compare `str` with `str` in const contexts - //FIXME ~^ ERROR cannot match on `str` in constant functions + "a" => (), + //[stock]~^ ERROR cannot match on `str` in constant functions + //[stock]~| ERROR `PartialEq` is not yet stable as a const trait _ => (), } } diff --git a/tests/ui/traits/const-traits/match-non-const-eq.stock.stderr b/tests/ui/traits/const-traits/match-non-const-eq.stock.stderr index 89e59e5db6e..5b662447bde 100644 --- a/tests/ui/traits/const-traits/match-non-const-eq.stock.stderr +++ b/tests/ui/traits/const-traits/match-non-const-eq.stock.stderr @@ -1,12 +1,26 @@ -error[E0015]: cannot match on `str` in constant functions +error[E0658]: cannot match on `str` in constant functions --> $DIR/match-non-const-eq.rs:7:9 | -LL | "a" => (), //FIXME [gated]~ ERROR can't compare `str` with `str` in const contexts +LL | "a" => (), | ^^^ | = note: `str` cannot be compared in compile-time, and therefore cannot be used in `match`es = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants + = note: see issue #143874 <https://github.com/rust-lang/rust/issues/143874> for more information + = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date -error: aborting due to 1 previous error +error: `PartialEq` is not yet stable as a const trait + --> $DIR/match-non-const-eq.rs:7:9 + | +LL | "a" => (), + | ^^^ + | +help: add `#![feature(const_cmp)]` to the crate attributes to enable + | +LL + #![feature(const_cmp)] + | + +error: aborting due to 2 previous errors -For more information about this error, try `rustc --explain E0015`. +For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/traits/const-traits/spec-effectvar-ice.rs b/tests/ui/traits/const-traits/spec-effectvar-ice.rs index c85b1746967..46f71b114a3 100644 --- a/tests/ui/traits/const-traits/spec-effectvar-ice.rs +++ b/tests/ui/traits/const-traits/spec-effectvar-ice.rs @@ -8,11 +8,11 @@ trait Specialize {} trait Foo {} impl<T> const Foo for T {} -//~^ error: const `impl` for trait `Foo` which is not marked with `#[const_trait]` +//~^ error: const `impl` for trait `Foo` which is not `const` impl<T> const Foo for T where T: const Specialize {} -//~^ error: const `impl` for trait `Foo` which is not marked with `#[const_trait]` -//~| error: `const` can only be applied to `#[const_trait]` traits +//~^ error: const `impl` for trait `Foo` which is not `const` +//~| error: `const` can only be applied to `const` traits //~| error: specialization impl does not specialize any associated items //~| error: cannot specialize on trait `Specialize` diff --git a/tests/ui/traits/const-traits/spec-effectvar-ice.stderr b/tests/ui/traits/const-traits/spec-effectvar-ice.stderr index 474d96698d5..ef5e58e1c3d 100644 --- a/tests/ui/traits/const-traits/spec-effectvar-ice.stderr +++ b/tests/ui/traits/const-traits/spec-effectvar-ice.stderr @@ -1,36 +1,36 @@ -error: const `impl` for trait `Foo` which is not marked with `#[const_trait]` +error: const `impl` for trait `Foo` which is not `const` --> $DIR/spec-effectvar-ice.rs:10:15 | LL | impl<T> const Foo for T {} | ^^^ this trait is not `const` | - = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` + = note: marking a trait with `const` ensures all default method bodies are `const` = note: adding a non-const method body in the future would be a breaking change -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo {} | ++++++++++++++ -error: const `impl` for trait `Foo` which is not marked with `#[const_trait]` +error: const `impl` for trait `Foo` which is not `const` --> $DIR/spec-effectvar-ice.rs:13:15 | LL | impl<T> const Foo for T where T: const Specialize {} | ^^^ this trait is not `const` | - = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` + = note: marking a trait with `const` ensures all default method bodies are `const` = note: adding a non-const method body in the future would be a breaking change -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo {} | ++++++++++++++ -error: `const` can only be applied to `#[const_trait]` traits +error: `const` can only be applied to `const` traits --> $DIR/spec-effectvar-ice.rs:13:34 | LL | impl<T> const Foo for T where T: const Specialize {} | ^^^^^ can't be applied to `Specialize` | -help: mark `Specialize` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Specialize` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Specialize {} | ++++++++++++++ diff --git a/tests/ui/traits/const-traits/super-traits-fail-2.nn.stderr b/tests/ui/traits/const-traits/super-traits-fail-2.nn.stderr index 19f072b289e..0ecbad64bc8 100644 --- a/tests/ui/traits/const-traits/super-traits-fail-2.nn.stderr +++ b/tests/ui/traits/const-traits/super-traits-fail-2.nn.stderr @@ -4,43 +4,43 @@ error: `[const]` is not allowed here LL | trait Bar: [const] Foo {} | ^^^^^^^ | -note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds +note: this trait is not `const`, 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 +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-2.rs:11:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-2.rs:11:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-2.rs:11:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ diff --git a/tests/ui/traits/const-traits/super-traits-fail-2.ny.stderr b/tests/ui/traits/const-traits/super-traits-fail-2.ny.stderr index 4921f78d3ac..0e5b697d1dd 100644 --- a/tests/ui/traits/const-traits/super-traits-fail-2.ny.stderr +++ b/tests/ui/traits/const-traits/super-traits-fail-2.ny.stderr @@ -1,58 +1,58 @@ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-2.rs:11:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-2.rs:11:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-2.rs:11:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-2.rs:11:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-2.rs:11:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ diff --git a/tests/ui/traits/const-traits/super-traits-fail-2.rs b/tests/ui/traits/const-traits/super-traits-fail-2.rs index 781dacb81a1..36e7c1c4e4a 100644 --- a/tests/ui/traits/const-traits/super-traits-fail-2.rs +++ b/tests/ui/traits/const-traits/super-traits-fail-2.rs @@ -9,11 +9,11 @@ trait Foo { #[cfg_attr(any(yy, ny), const_trait)] 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]` -//[ny,nn]~| ERROR: `[const]` can only be applied to `#[const_trait]` -//[ny]~| ERROR: `[const]` can only be applied to `#[const_trait]` -//[ny]~| ERROR: `[const]` can only be applied to `#[const_trait]` +//[ny,nn]~^ ERROR: `[const]` can only be applied to `const` traits +//[ny,nn]~| ERROR: `[const]` can only be applied to `const` traits +//[ny,nn]~| ERROR: `[const]` can only be applied to `const` traits +//[ny]~| ERROR: `[const]` can only be applied to `const` traits +//[ny]~| ERROR: `[const]` can only be applied to `const` traits //[yn,nn]~^^^^^^ ERROR: `[const]` is not allowed here const fn foo<T: Bar>(x: &T) { diff --git a/tests/ui/traits/const-traits/super-traits-fail-2.yn.stderr b/tests/ui/traits/const-traits/super-traits-fail-2.yn.stderr index a151349822e..657e8ee82e3 100644 --- a/tests/ui/traits/const-traits/super-traits-fail-2.yn.stderr +++ b/tests/ui/traits/const-traits/super-traits-fail-2.yn.stderr @@ -4,7 +4,7 @@ error: `[const]` is not allowed here LL | trait Bar: [const] Foo {} | ^^^^^^^ | -note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds +note: this trait is not `const`, so it cannot have `[const]` trait bounds --> $DIR/super-traits-fail-2.rs:11:1 | LL | trait Bar: [const] Foo {} diff --git a/tests/ui/traits/const-traits/super-traits-fail-3.nnn.stderr b/tests/ui/traits/const-traits/super-traits-fail-3.nnn.stderr index 3f48375dd04..a0ae60526ef 100644 --- a/tests/ui/traits/const-traits/super-traits-fail-3.nnn.stderr +++ b/tests/ui/traits/const-traits/super-traits-fail-3.nnn.stderr @@ -4,7 +4,7 @@ error: `[const]` is not allowed here LL | trait Bar: [const] Foo {} | ^^^^^^^ | -note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds +note: this trait is not `const`, so it cannot have `[const]` trait bounds --> $DIR/super-traits-fail-3.rs:23:1 | LL | trait Bar: [const] Foo {} @@ -30,60 +30,60 @@ LL | const fn foo<T: [const] Bar>(x: &T) { = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:23:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | -help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:23:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:23:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:32:17 | LL | const fn foo<T: [const] Bar>(x: &T) { | ^^^^^^^ can't be applied to `Bar` | -help: enable `#![feature(const_trait_impl)]` in your crate and mark `Bar` as `#[const_trait]` to allow it to have `const` implementations +help: enable `#![feature(const_trait_impl)]` in your crate and mark `Bar` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Bar: [const] Foo {} | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:32:17 | LL | const fn foo<T: [const] Bar>(x: &T) { | ^^^^^^^ can't be applied to `Bar` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: enable `#![feature(const_trait_impl)]` in your crate and mark `Bar` as `#[const_trait]` to allow it to have `const` implementations +help: enable `#![feature(const_trait_impl)]` in your crate and mark `Bar` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Bar: [const] Foo {} | ++++++++++++++ diff --git a/tests/ui/traits/const-traits/super-traits-fail-3.nny.stderr b/tests/ui/traits/const-traits/super-traits-fail-3.nny.stderr index 3f48375dd04..a0ae60526ef 100644 --- a/tests/ui/traits/const-traits/super-traits-fail-3.nny.stderr +++ b/tests/ui/traits/const-traits/super-traits-fail-3.nny.stderr @@ -4,7 +4,7 @@ error: `[const]` is not allowed here LL | trait Bar: [const] Foo {} | ^^^^^^^ | -note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds +note: this trait is not `const`, so it cannot have `[const]` trait bounds --> $DIR/super-traits-fail-3.rs:23:1 | LL | trait Bar: [const] Foo {} @@ -30,60 +30,60 @@ LL | const fn foo<T: [const] Bar>(x: &T) { = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:23:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | -help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:23:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:23:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: enable `#![feature(const_trait_impl)]` in your crate and mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:32:17 | LL | const fn foo<T: [const] Bar>(x: &T) { | ^^^^^^^ can't be applied to `Bar` | -help: enable `#![feature(const_trait_impl)]` in your crate and mark `Bar` as `#[const_trait]` to allow it to have `const` implementations +help: enable `#![feature(const_trait_impl)]` in your crate and mark `Bar` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Bar: [const] Foo {} | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:32:17 | LL | const fn foo<T: [const] Bar>(x: &T) { | ^^^^^^^ can't be applied to `Bar` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: enable `#![feature(const_trait_impl)]` in your crate and mark `Bar` as `#[const_trait]` to allow it to have `const` implementations +help: enable `#![feature(const_trait_impl)]` in your crate and mark `Bar` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Bar: [const] Foo {} | ++++++++++++++ diff --git a/tests/ui/traits/const-traits/super-traits-fail-3.rs b/tests/ui/traits/const-traits/super-traits-fail-3.rs index 5370f607dec..d74bd346784 100644 --- a/tests/ui/traits/const-traits/super-traits-fail-3.rs +++ b/tests/ui/traits/const-traits/super-traits-fail-3.rs @@ -21,17 +21,17 @@ trait Foo { #[cfg_attr(any(yyy, yny, nyy, nyn), const_trait)] //[nyy,nyn]~^ ERROR: `const_trait` is a temporary placeholder for marking a trait that is suitable for `const` `impls` and all default bodies as `const`, which may be removed or renamed in the future trait Bar: [const] Foo {} -//[yny,ynn,nny,nnn]~^ ERROR: `[const]` can only be applied to `#[const_trait]` -//[yny,ynn,nny,nnn]~| ERROR: `[const]` can only be applied to `#[const_trait]` -//[yny,ynn,nny,nnn]~| ERROR: `[const]` can only be applied to `#[const_trait]` -//[yny]~^^^^ ERROR: `[const]` can only be applied to `#[const_trait]` -//[yny]~| ERROR: `[const]` can only be applied to `#[const_trait]` +//[yny,ynn,nny,nnn]~^ ERROR: `[const]` can only be applied to `const` traits +//[yny,ynn,nny,nnn]~| ERROR: `[const]` can only be applied to `const` traits +//[yny,ynn,nny,nnn]~| ERROR: `[const]` can only be applied to `const` traits +//[yny]~^^^^ ERROR: `[const]` can only be applied to `const` traits +//[yny]~| ERROR: `[const]` can only be applied to `const` traits //[yyn,ynn,nny,nnn]~^^^^^^ ERROR: `[const]` is not allowed here //[nyy,nyn,nny,nnn]~^^^^^^^ ERROR: const trait impls are experimental const fn foo<T: [const] Bar>(x: &T) { - //[yyn,ynn,nny,nnn]~^ ERROR: `[const]` can only be applied to `#[const_trait]` - //[yyn,ynn,nny,nnn]~| ERROR: `[const]` can only be applied to `#[const_trait]` + //[yyn,ynn,nny,nnn]~^ ERROR: `[const]` can only be applied to `const` traits + //[yyn,ynn,nny,nnn]~| ERROR: `[const]` can only be applied to `const` traits //[nyy,nyn,nny,nnn]~^^^ ERROR: const trait impls are experimental x.a(); //[yyn]~^ ERROR: the trait bound `T: [const] Foo` is not satisfied diff --git a/tests/ui/traits/const-traits/super-traits-fail-3.ynn.stderr b/tests/ui/traits/const-traits/super-traits-fail-3.ynn.stderr index 89e090b7d1c..c8ec77c2f09 100644 --- a/tests/ui/traits/const-traits/super-traits-fail-3.ynn.stderr +++ b/tests/ui/traits/const-traits/super-traits-fail-3.ynn.stderr @@ -4,66 +4,66 @@ error: `[const]` is not allowed here LL | trait Bar: [const] Foo {} | ^^^^^^^ | -note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds +note: this trait is not `const`, so it cannot have `[const]` trait bounds --> $DIR/super-traits-fail-3.rs:23:1 | LL | trait Bar: [const] Foo {} | ^^^^^^^^^^^^^^^^^^^^^^^^^ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:23:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:23:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:23:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:32:17 | LL | const fn foo<T: [const] Bar>(x: &T) { | ^^^^^^^ can't be applied to `Bar` | -help: mark `Bar` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Bar` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Bar: [const] Foo {} | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:32:17 | LL | const fn foo<T: [const] Bar>(x: &T) { | ^^^^^^^ can't be applied to `Bar` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: mark `Bar` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Bar` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Bar: [const] Foo {} | ++++++++++++++ diff --git a/tests/ui/traits/const-traits/super-traits-fail-3.yny.stderr b/tests/ui/traits/const-traits/super-traits-fail-3.yny.stderr index 683eeb73850..a820239cde0 100644 --- a/tests/ui/traits/const-traits/super-traits-fail-3.yny.stderr +++ b/tests/ui/traits/const-traits/super-traits-fail-3.yny.stderr @@ -1,58 +1,58 @@ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:23:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:23:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:23:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:23:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:23:12 | LL | trait Bar: [const] Foo {} | ^^^^^^^ can't be applied to `Foo` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: mark `Foo` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Foo` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Foo { | ++++++++++++++ diff --git a/tests/ui/traits/const-traits/super-traits-fail-3.yyn.stderr b/tests/ui/traits/const-traits/super-traits-fail-3.yyn.stderr index 39cfdfe2030..de3664dae84 100644 --- a/tests/ui/traits/const-traits/super-traits-fail-3.yyn.stderr +++ b/tests/ui/traits/const-traits/super-traits-fail-3.yyn.stderr @@ -4,31 +4,31 @@ error: `[const]` is not allowed here LL | trait Bar: [const] Foo {} | ^^^^^^^ | -note: this trait is not a `#[const_trait]`, so it cannot have `[const]` trait bounds +note: this trait is not `const`, so it cannot have `[const]` trait bounds --> $DIR/super-traits-fail-3.rs:23:1 | LL | trait Bar: [const] Foo {} | ^^^^^^^^^^^^^^^^^^^^^^^^^ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:32:17 | LL | const fn foo<T: [const] Bar>(x: &T) { | ^^^^^^^ can't be applied to `Bar` | -help: mark `Bar` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Bar` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Bar: [const] Foo {} | ++++++++++++++ -error: `[const]` can only be applied to `#[const_trait]` traits +error: `[const]` can only be applied to `const` traits --> $DIR/super-traits-fail-3.rs:32:17 | LL | const fn foo<T: [const] Bar>(x: &T) { | ^^^^^^^ can't be applied to `Bar` | = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` -help: mark `Bar` as `#[const_trait]` to allow it to have `const` implementations +help: mark `Bar` as `const` to allow it to have `const` implementations | LL | #[const_trait] trait Bar: [const] Foo {} | ++++++++++++++ diff --git a/tests/ui/traits/const-traits/trait-default-body-stability.stderr b/tests/ui/traits/const-traits/trait-default-body-stability.stderr index a13d9a1e075..b995d6f4f3d 100644 --- a/tests/ui/traits/const-traits/trait-default-body-stability.stderr +++ b/tests/ui/traits/const-traits/trait-default-body-stability.stderr @@ -1,19 +1,19 @@ -error: const `impl` for trait `Try` which is not marked with `#[const_trait]` +error: const `impl` for trait `Try` which is not `const` --> $DIR/trait-default-body-stability.rs:19:12 | LL | impl const Try for T { | ^^^ this trait is not `const` | - = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` + = note: marking a trait with `const` ensures all default method bodies are `const` = note: adding a non-const method body in the future would be a breaking change -error: const `impl` for trait `FromResidual` which is not marked with `#[const_trait]` +error: const `impl` for trait `FromResidual` which is not `const` --> $DIR/trait-default-body-stability.rs:34:12 | LL | impl const FromResidual for T { | ^^^^^^^^^^^^ this trait is not `const` | - = note: marking a trait with `#[const_trait]` ensures all default method bodies are `const` + = note: marking a trait with `const` ensures all default method bodies are `const` = note: adding a non-const method body in the future would be a breaking change error[E0015]: `?` is not allowed on `T` in constant functions diff --git a/tests/ui/traits/resolve-impl-before-constrain-check.rs b/tests/ui/traits/resolve-impl-before-constrain-check.rs index 50d1a874551..87f9c241e40 100644 --- a/tests/ui/traits/resolve-impl-before-constrain-check.rs +++ b/tests/ui/traits/resolve-impl-before-constrain-check.rs @@ -15,7 +15,6 @@ use foo::*; fn test() -> impl Sized { <() as Callable>::call() -//~^ ERROR: type annotations needed } fn main() {} diff --git a/tests/ui/traits/resolve-impl-before-constrain-check.stderr b/tests/ui/traits/resolve-impl-before-constrain-check.stderr index 13fbfdb855c..e8e569ba625 100644 --- a/tests/ui/traits/resolve-impl-before-constrain-check.stderr +++ b/tests/ui/traits/resolve-impl-before-constrain-check.stderr @@ -4,13 +4,6 @@ error[E0207]: the type parameter `V` is not constrained by the impl trait, self LL | impl<V: ?Sized> Callable for () { | ^ unconstrained type parameter -error[E0282]: type annotations needed - --> $DIR/resolve-impl-before-constrain-check.rs:17:6 - | -LL | <() as Callable>::call() - | ^^ cannot infer type for type parameter `V` - -error: aborting due to 2 previous errors +error: aborting due to 1 previous error -Some errors have detailed explanations: E0207, E0282. -For more information about an error, try `rustc --explain E0207`. +For more information about this error, try `rustc --explain E0207`. diff --git a/tests/ui/underscore-lifetime/raw-underscore-lifetime.rs b/tests/ui/underscore-lifetime/raw-underscore-lifetime.rs new file mode 100644 index 00000000000..874b3d2c48d --- /dev/null +++ b/tests/ui/underscore-lifetime/raw-underscore-lifetime.rs @@ -0,0 +1,9 @@ +// This test is to ensure that the raw underscore lifetime won't emit two duplicate errors. +// See issue #143152 + +//@ edition: 2021 + +fn f<'r#_>(){} +//~^ ERROR `_` cannot be a raw lifetime + +fn main() {} diff --git a/tests/ui/underscore-lifetime/raw-underscore-lifetime.stderr b/tests/ui/underscore-lifetime/raw-underscore-lifetime.stderr new file mode 100644 index 00000000000..bdb357a47f4 --- /dev/null +++ b/tests/ui/underscore-lifetime/raw-underscore-lifetime.stderr @@ -0,0 +1,8 @@ +error: `_` cannot be a raw lifetime + --> $DIR/raw-underscore-lifetime.rs:6:6 + | +LL | fn f<'r#_>(){} + | ^^^^ + +error: aborting due to 1 previous error + diff --git a/tests/ui/unstable-feature-bound/auxiliary/unstable_feature.rs b/tests/ui/unstable-feature-bound/auxiliary/unstable_feature.rs new file mode 100644 index 00000000000..3749deb7627 --- /dev/null +++ b/tests/ui/unstable-feature-bound/auxiliary/unstable_feature.rs @@ -0,0 +1,25 @@ +#![allow(internal_features)] +#![feature(staged_api)] +#![stable(feature = "a", since = "1.1.1" )] + +#[stable(feature = "a", since = "1.1.1" )] +pub trait Foo { + #[stable(feature = "a", since = "1.1.1" )] + fn foo(); +} +#[stable(feature = "a", since = "1.1.1" )] +pub struct Bar; +#[stable(feature = "a", since = "1.1.1" )] +pub struct Moo; + +#[unstable_feature_bound(feat_bar)] +#[unstable(feature = "feat_bar", issue = "none" )] +impl Foo for Bar { + fn foo() {} +} + +#[unstable_feature_bound(feat_moo)] +#[unstable(feature = "feat_moo", issue = "none" )] +impl Foo for Moo { + fn foo() {} +} diff --git a/tests/ui/unstable-feature-bound/auxiliary/unstable_impl_codegen_aux1.rs b/tests/ui/unstable-feature-bound/auxiliary/unstable_impl_codegen_aux1.rs new file mode 100644 index 00000000000..8c0d14a1bab --- /dev/null +++ b/tests/ui/unstable-feature-bound/auxiliary/unstable_impl_codegen_aux1.rs @@ -0,0 +1,19 @@ +#![allow(internal_features)] +#![feature(staged_api)] +#![stable(feature = "a", since = "1.1.1" )] + +/// Aux crate for unstable impl codegen test. + +#[stable(feature = "a", since = "1.1.1" )] +pub trait Trait { + #[stable(feature = "a", since = "1.1.1" )] + fn method(&self); +} + +#[unstable_feature_bound(foo)] +#[unstable(feature = "foo", issue = "none" )] +impl<T> Trait for T { + fn method(&self) { + println!("hi"); + } +} diff --git a/tests/ui/unstable-feature-bound/auxiliary/unstable_impl_codegen_aux2.rs b/tests/ui/unstable-feature-bound/auxiliary/unstable_impl_codegen_aux2.rs new file mode 100644 index 00000000000..1b0e2b2eec3 --- /dev/null +++ b/tests/ui/unstable-feature-bound/auxiliary/unstable_impl_codegen_aux2.rs @@ -0,0 +1,13 @@ +//@ aux-build:unstable_impl_codegen_aux1.rs +#![feature(foo)] + +extern crate unstable_impl_codegen_aux1 as aux; +use aux::Trait; + +/// Upstream crate for unstable impl codegen test +/// that depends on aux crate in +/// unstable_impl_codegen_aux1.rs + +pub fn foo<T>(a: T) { + a.method(); +} diff --git a/tests/ui/unstable-feature-bound/auxiliary/unstable_impl_coherence_aux.rs b/tests/ui/unstable-feature-bound/auxiliary/unstable_impl_coherence_aux.rs new file mode 100644 index 00000000000..2e055101216 --- /dev/null +++ b/tests/ui/unstable-feature-bound/auxiliary/unstable_impl_coherence_aux.rs @@ -0,0 +1,11 @@ +#![allow(internal_features)] +#![feature(staged_api)] +#![allow(dead_code)] +#![stable(feature = "a", since = "1.1.1" )] + +#[stable(feature = "a", since = "1.1.1" )] +pub trait Trait {} + +#[unstable_feature_bound(foo)] +#[unstable(feature = "foo", issue = "none" )] +impl <T> Trait for T {} diff --git a/tests/ui/unstable-feature-bound/auxiliary/unstable_impl_method_selection_aux.rs b/tests/ui/unstable-feature-bound/auxiliary/unstable_impl_method_selection_aux.rs new file mode 100644 index 00000000000..3a433007b5d --- /dev/null +++ b/tests/ui/unstable-feature-bound/auxiliary/unstable_impl_method_selection_aux.rs @@ -0,0 +1,20 @@ +#![allow(internal_features)] +#![feature(staged_api)] +#![stable(feature = "a", since = "1.1.1" )] + +#[stable(feature = "a", since = "1.1.1" )] +pub trait Trait { + #[stable(feature = "a", since = "1.1.1" )] + fn foo(&self) {} +} + +#[stable(feature = "a", since = "1.1.1" )] +impl Trait for Vec<u32> { + fn foo(&self) {} +} + +#[unstable_feature_bound(bar)] +#[unstable(feature = "bar", issue = "none" )] +impl Trait for Vec<u64> { + fn foo(&self) {} +} diff --git a/tests/ui/unstable-feature-bound/unstable-feature-bound-no-effect.rs b/tests/ui/unstable-feature-bound/unstable-feature-bound-no-effect.rs new file mode 100644 index 00000000000..99501893ae0 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable-feature-bound-no-effect.rs @@ -0,0 +1,35 @@ +#![allow(internal_features)] +#![feature(staged_api)] +#![allow(dead_code)] +#![stable(feature = "a", since = "1.1.1" )] + +/// If #[unstable(..)] and #[unstable_feature_name(..)] have the same feature name, +/// the error should not be thrown as it can effectively mark an impl as unstable. +/// +/// If the feature name in #[feature] does not exist in #[unstable_feature_bound(..)] +/// an error should still be thrown because that feature will not be unstable. + +#[stable(feature = "a", since = "1.1.1")] +trait Moo {} +#[stable(feature = "a", since = "1.1.1")] +trait Foo {} +#[stable(feature = "a", since = "1.1.1")] +trait Boo {} +#[stable(feature = "a", since = "1.1.1")] +pub struct Bar; + + +#[unstable(feature = "feat_moo", issue = "none")] +#[unstable_feature_bound(feat_foo)] //~^ ERROR: an `#[unstable]` annotation here has no effect +impl Moo for Bar {} + +#[unstable(feature = "feat_foo", issue = "none")] +#[unstable_feature_bound(feat_foo)] +impl Foo for Bar {} + + +#[unstable(feature = "feat_foo", issue = "none")] +#[unstable_feature_bound(feat_foo, feat_bar)] +impl Boo for Bar {} + +fn main() {} diff --git a/tests/ui/unstable-feature-bound/unstable-feature-bound-no-effect.stderr b/tests/ui/unstable-feature-bound/unstable-feature-bound-no-effect.stderr new file mode 100644 index 00000000000..4c8af2bbe56 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable-feature-bound-no-effect.stderr @@ -0,0 +1,11 @@ +error: an `#[unstable]` annotation here has no effect + --> $DIR/unstable-feature-bound-no-effect.rs:22:1 + | +LL | #[unstable(feature = "feat_moo", issue = "none")] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #55436 <https://github.com/rust-lang/rust/issues/55436> for more information + = note: `#[deny(ineffective_unstable_trait_impl)]` on by default + +error: aborting due to 1 previous error + diff --git a/tests/ui/unstable-feature-bound/unstable-feature-bound-two-error.rs b/tests/ui/unstable-feature-bound/unstable-feature-bound-two-error.rs new file mode 100644 index 00000000000..798c2d8562c --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable-feature-bound-two-error.rs @@ -0,0 +1,12 @@ +//@ aux-build:unstable_feature.rs +extern crate unstable_feature; +use unstable_feature::{Foo, Bar, Moo}; + +// FIXME: both `feat_bar` and `feat_moo` are needed to pass this test, +// but the diagnostic only will point out `feat_bar`. + +fn main() { + Bar::foo(); + //~^ ERROR: use of unstable library feature `feat_bar` [E0658] + Moo::foo(); +} diff --git a/tests/ui/unstable-feature-bound/unstable-feature-bound-two-error.stderr b/tests/ui/unstable-feature-bound/unstable-feature-bound-two-error.stderr new file mode 100644 index 00000000000..673d10ce2ad --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable-feature-bound-two-error.stderr @@ -0,0 +1,13 @@ +error[E0658]: use of unstable library feature `feat_bar` + --> $DIR/unstable-feature-bound-two-error.rs:9:5 + | +LL | Bar::foo(); + | ^^^ + | + = help: add `#![feature(feat_bar)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + = note: required for `Bar` to implement `Foo` + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/unstable-feature-bound/unstable-feature-cross-crate-exact-symbol.fail.stderr b/tests/ui/unstable-feature-bound/unstable-feature-cross-crate-exact-symbol.fail.stderr new file mode 100644 index 00000000000..ce8d7358cfc --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable-feature-cross-crate-exact-symbol.fail.stderr @@ -0,0 +1,13 @@ +error[E0658]: use of unstable library feature `feat_moo` + --> $DIR/unstable-feature-cross-crate-exact-symbol.rs:16:5 + | +LL | Moo::foo(); + | ^^^ + | + = help: add `#![feature(feat_moo)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + = note: required for `Moo` to implement `Foo` + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/unstable-feature-bound/unstable-feature-cross-crate-exact-symbol.rs b/tests/ui/unstable-feature-bound/unstable-feature-cross-crate-exact-symbol.rs new file mode 100644 index 00000000000..a427bb8eb7e --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable-feature-cross-crate-exact-symbol.rs @@ -0,0 +1,18 @@ +//@ aux-build:unstable_feature.rs +//@ revisions: pass fail +//@[pass] check-pass + +#![cfg_attr(pass, feature(feat_bar, feat_moo))] +#![cfg_attr(fail, feature(feat_bar))] + +extern crate unstable_feature; +use unstable_feature::{Foo, Bar, Moo}; + +/// To use impls gated by both `feat_foo` and `feat_moo`, +/// both features must be enabled. + +fn main() { + Bar::foo(); + Moo::foo(); + //[fail]~^ ERROR:use of unstable library feature `feat_moo` [E0658] +} diff --git a/tests/ui/unstable-feature-bound/unstable-feature-cross-crate-multiple-symbol.rs b/tests/ui/unstable-feature-bound/unstable-feature-cross-crate-multiple-symbol.rs new file mode 100644 index 00000000000..5b09c898a08 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable-feature-cross-crate-multiple-symbol.rs @@ -0,0 +1,11 @@ +//@ aux-build:unstable_feature.rs +//@ check-pass +#![feature(feat_bar, feat_moo)] +extern crate unstable_feature; +use unstable_feature::{Foo, Bar}; + +/// Bar::foo() should still be usable even if we enable multiple feature. + +fn main() { + Bar::foo(); +} diff --git a/tests/ui/unstable-feature-bound/unstable-feature-cross-crate-require-bound.fail.stderr b/tests/ui/unstable-feature-bound/unstable-feature-cross-crate-require-bound.fail.stderr new file mode 100644 index 00000000000..87a2ad41fc1 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable-feature-cross-crate-require-bound.fail.stderr @@ -0,0 +1,13 @@ +error[E0658]: use of unstable library feature `feat_bar` + --> $DIR/unstable-feature-cross-crate-require-bound.rs:12:5 + | +LL | Bar::foo(); + | ^^^ + | + = help: add `#![feature(feat_bar)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + = note: required for `Bar` to implement `Foo` + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/unstable-feature-bound/unstable-feature-cross-crate-require-bound.rs b/tests/ui/unstable-feature-bound/unstable-feature-cross-crate-require-bound.rs new file mode 100644 index 00000000000..8be214b5324 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable-feature-cross-crate-require-bound.rs @@ -0,0 +1,14 @@ +//@ aux-build:unstable_feature.rs +//@ revisions: pass fail +//@[pass] check-pass + +#![cfg_attr(pass, feature(feat_bar))] +extern crate unstable_feature; +use unstable_feature::{Foo, Bar}; + +/// #[feature(..)] is required to use unstable impl. + +fn main() { + Bar::foo(); + //[fail]~^ ERROR: use of unstable library feature `feat_bar` [E0658] +} diff --git a/tests/ui/unstable-feature-bound/unstable-feature-exact-symbol.fail.stderr b/tests/ui/unstable-feature-bound/unstable-feature-exact-symbol.fail.stderr new file mode 100644 index 00000000000..b8cb63ec65f --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable-feature-exact-symbol.fail.stderr @@ -0,0 +1,17 @@ +error: unstable feature `feat_moo` is used without being enabled. + --> $DIR/unstable-feature-exact-symbol.rs:37:5 + | +LL | Bar::moo(); + | ^^^ + | + = help: The feature can be enabled by marking the current item with `#[unstable_feature_bound(feat_moo)]` +note: required for `Bar` to implement `Moo` + --> $DIR/unstable-feature-exact-symbol.rs:29:6 + | +LL | #[unstable_feature_bound(feat_moo)] + | ----------------------------------- unsatisfied trait bound introduced here +LL | impl Moo for Bar { + | ^^^ ^^^ + +error: aborting due to 1 previous error + diff --git a/tests/ui/unstable-feature-bound/unstable-feature-exact-symbol.rs b/tests/ui/unstable-feature-bound/unstable-feature-exact-symbol.rs new file mode 100644 index 00000000000..2de9e6a857e --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable-feature-exact-symbol.rs @@ -0,0 +1,42 @@ +//@ revisions: pass fail +//@[pass] check-pass + +#![allow(internal_features)] +#![feature(staged_api)] +#![allow(dead_code)] +#![unstable(feature = "feat_foo", issue = "none" )] + +/// In staged-api crate, impl that is marked as unstable with +/// feature name `feat_moo` should not be accessible +/// if only `feat_foo` is enabled. + +pub trait Foo { + fn foo(); +} + +pub trait Moo { + fn moo(); +} + +pub struct Bar; + +#[unstable_feature_bound(feat_foo)] +impl Foo for Bar { + fn foo() {} +} + +#[unstable_feature_bound(feat_moo)] +impl Moo for Bar { + fn moo() {} +} + +#[cfg_attr(fail, unstable_feature_bound(feat_foo))] +#[cfg_attr(pass, unstable_feature_bound(feat_foo, feat_moo))] +fn bar() { + Bar::foo(); + Bar::moo(); + //[fail]~^ ERROR unstable feature `feat_moo` is used without being enabled. + +} + +fn main() {} diff --git a/tests/ui/unstable-feature-bound/unstable-impl-assoc-type.fail.stderr b/tests/ui/unstable-feature-bound/unstable-impl-assoc-type.fail.stderr new file mode 100644 index 00000000000..db9759b4cc3 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable-impl-assoc-type.fail.stderr @@ -0,0 +1,22 @@ +error: unstable feature `feat_foo` is used without being enabled. + --> $DIR/unstable-impl-assoc-type.rs:23:16 + | +LL | type Assoc = Self; + | ^^^^ + | + = help: The feature can be enabled by marking the current item with `#[unstable_feature_bound(feat_foo)]` +note: required for `Foo` to implement `Bar` + --> $DIR/unstable-impl-assoc-type.rs:19:6 + | +LL | #[unstable_feature_bound(feat_foo)] + | ----------------------------------- unsatisfied trait bound introduced here +LL | impl Bar for Foo {} + | ^^^ ^^^ +note: required by a bound in `Trait::Assoc` + --> $DIR/unstable-impl-assoc-type.rs:13:17 + | +LL | type Assoc: Bar; + | ^^^ required by this bound in `Trait::Assoc` + +error: aborting due to 1 previous error + diff --git a/tests/ui/unstable-feature-bound/unstable-impl-assoc-type.rs b/tests/ui/unstable-feature-bound/unstable-impl-assoc-type.rs new file mode 100644 index 00000000000..e31dc688dfa --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable-impl-assoc-type.rs @@ -0,0 +1,28 @@ +//@ revisions: pass fail +//@[pass] check-pass + +#![allow(internal_features)] +#![feature(staged_api)] +#![unstable(feature = "feat_foo", issue = "none" )] + +/// Test that you can't leak unstable impls through item bounds on associated types. + +trait Bar {} + +trait Trait { + type Assoc: Bar; +} + +struct Foo; + +#[unstable_feature_bound(feat_foo)] +impl Bar for Foo {} + +#[cfg_attr(pass, unstable_feature_bound(feat_foo))] +impl Trait for Foo { + type Assoc = Self; + //[fail]~^ ERROR: unstable feature `feat_foo` is used without being enabled. + +} + +fn main(){} diff --git a/tests/ui/unstable-feature-bound/unstable-impl-cannot-use-feature.fail.stderr b/tests/ui/unstable-feature-bound/unstable-impl-cannot-use-feature.fail.stderr new file mode 100644 index 00000000000..d56072362fe --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable-impl-cannot-use-feature.fail.stderr @@ -0,0 +1,17 @@ +error: unstable feature `feat_foo` is used without being enabled. + --> $DIR/unstable-impl-cannot-use-feature.rs:26:5 + | +LL | Bar::foo(); + | ^^^ + | + = help: The feature can be enabled by marking the current item with `#[unstable_feature_bound(feat_foo)]` +note: required for `Bar` to implement `Foo` + --> $DIR/unstable-impl-cannot-use-feature.rs:20:6 + | +LL | #[unstable_feature_bound(feat_foo)] + | ----------------------------------- unsatisfied trait bound introduced here +LL | impl Foo for Bar { + | ^^^ ^^^ + +error: aborting due to 1 previous error + diff --git a/tests/ui/unstable-feature-bound/unstable-impl-cannot-use-feature.rs b/tests/ui/unstable-feature-bound/unstable-impl-cannot-use-feature.rs new file mode 100644 index 00000000000..0da618445fd --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable-impl-cannot-use-feature.rs @@ -0,0 +1,30 @@ +//@ revisions: pass fail +//@[pass] check-pass + +#![allow(internal_features)] +#![feature(staged_api)] +#![allow(dead_code)] +#![unstable(feature = "feat_foo", issue = "none" )] + +#![cfg_attr(fail, feature(feat_foo))] + +/// In staged-api crate, using an unstable impl requires +/// #[unstable_feature_bound(..)], not #[feature(..)]. + +pub trait Foo { + fn foo(); +} +pub struct Bar; + +#[unstable_feature_bound(feat_foo)] +impl Foo for Bar { + fn foo() {} +} + +#[cfg_attr(pass, unstable_feature_bound(feat_foo))] +fn bar() { + Bar::foo(); + //[fail]~^ ERROR: unstable feature `feat_foo` is used without being enabled. +} + +fn main() {} diff --git a/tests/ui/unstable-feature-bound/unstable-impl-multiple-symbol.rs b/tests/ui/unstable-feature-bound/unstable-impl-multiple-symbol.rs new file mode 100644 index 00000000000..c9a9029b0a0 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable-impl-multiple-symbol.rs @@ -0,0 +1,27 @@ +//@ check-pass + +#![allow(internal_features)] +#![feature(staged_api)] +#![allow(dead_code)] +#![unstable(feature = "feat_foo", issue = "none" )] + +/// In staged-api crate, if feat_foo is only needed to use an impl, +/// having both `feat_foo` and `feat_bar` will still make it pass. + +pub trait Foo { + fn foo(); +} +pub struct Bar; + +// Annotate the impl as unstable. +#[unstable_feature_bound(feat_foo)] +impl Foo for Bar { + fn foo() {} +} + +#[unstable_feature_bound(feat_foo, feat_bar)] +fn bar() { + Bar::foo(); +} + +fn main() {} diff --git a/tests/ui/unstable-feature-bound/unstable_feature_bound_free_fn.fail.stderr b/tests/ui/unstable-feature-bound/unstable_feature_bound_free_fn.fail.stderr new file mode 100644 index 00000000000..f8354256828 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable_feature_bound_free_fn.fail.stderr @@ -0,0 +1,17 @@ +error: unstable feature `feat_bar` is used without being enabled. + --> $DIR/unstable_feature_bound_free_fn.rs:36:5 + | +LL | bar(); + | ^^^^^ + | + = help: The feature can be enabled by marking the current item with `#[unstable_feature_bound(feat_bar)]` +note: required by a bound in `bar` + --> $DIR/unstable_feature_bound_free_fn.rs:29:1 + | +LL | #[unstable_feature_bound(feat_bar)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `bar` +LL | fn bar() { + | --- required by a bound in this function + +error: aborting due to 1 previous error + diff --git a/tests/ui/unstable-feature-bound/unstable_feature_bound_free_fn.rs b/tests/ui/unstable-feature-bound/unstable_feature_bound_free_fn.rs new file mode 100644 index 00000000000..30e2ab3d65e --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable_feature_bound_free_fn.rs @@ -0,0 +1,40 @@ +//@ revisions: pass fail +//@[pass] check-pass + +#![allow(internal_features)] +#![feature(staged_api)] +#![allow(dead_code)] +#![stable(feature = "a", since = "1.1.1" )] + +/// When a free function with #[unstable_feature_bound(feat_bar)] is called by another +/// free function, that function should be annotated with +/// #[unstable_feature_bound(feat_bar)] too. + +#[stable(feature = "a", since = "1.1.1")] +trait Foo { + #[stable(feature = "a", since = "1.1.1")] + fn foo() { + } +} +#[stable(feature = "a", since = "1.1.1")] +pub struct Bar; + +#[unstable_feature_bound(feat_bar)] +#[unstable(feature = "feat_bar", issue = "none" )] +impl Foo for Bar { + fn foo() {} +} + + +#[unstable_feature_bound(feat_bar)] +fn bar() { + Bar::foo(); +} + +#[cfg_attr(pass, unstable_feature_bound(feat_bar))] +fn bar2() { + bar(); + //[fail]~^ERROR unstable feature `feat_bar` is used without being enabled. +} + +fn main() {} diff --git a/tests/ui/unstable-feature-bound/unstable_feature_bound_incompatible_stability.rs b/tests/ui/unstable-feature-bound/unstable_feature_bound_incompatible_stability.rs new file mode 100644 index 00000000000..1a9652c1023 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable_feature_bound_incompatible_stability.rs @@ -0,0 +1,14 @@ +#![allow(internal_features)] +#![feature(staged_api)] +#![allow(dead_code)] +#![stable(feature = "a", since = "1.1.1" )] + +// Lint against the usage of both #[unstable_feature_bound] and #[stable] on the +// same item. + +#[stable(feature = "a", since = "1.1.1")] +#[unstable_feature_bound(feat_bar)] +fn bar() {} +//~^ ERROR Item annotated with `#[unstable_feature_bound]` should not be stable + +fn main() {} diff --git a/tests/ui/unstable-feature-bound/unstable_feature_bound_incompatible_stability.stderr b/tests/ui/unstable-feature-bound/unstable_feature_bound_incompatible_stability.stderr new file mode 100644 index 00000000000..9cb6a181bef --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable_feature_bound_incompatible_stability.stderr @@ -0,0 +1,10 @@ +error: Item annotated with `#[unstable_feature_bound]` should not be stable + --> $DIR/unstable_feature_bound_incompatible_stability.rs:11:1 + | +LL | fn bar() {} + | ^^^^^^^^^^^ + | + = help: If this item is meant to be stable, do not use any functions annotated with `#[unstable_feature_bound]`. Otherwise, mark this item as unstable with `#[unstable]` + +error: aborting due to 1 previous error + diff --git a/tests/ui/unstable-feature-bound/unstable_feature_bound_multi_attr.rs b/tests/ui/unstable-feature-bound/unstable_feature_bound_multi_attr.rs new file mode 100644 index 00000000000..3d6b52ba517 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable_feature_bound_multi_attr.rs @@ -0,0 +1,36 @@ +#![allow(internal_features)] +#![feature(staged_api)] +#![allow(dead_code)] +#![unstable(feature = "feat_bar", issue = "none" )] + +/// Test the behaviour of multiple unstable_feature_bound attribute. + +trait Foo { + fn foo(); +} +struct Bar; + +#[unstable_feature_bound(feat_bar, feat_koo)] +#[unstable_feature_bound(feat_foo, feat_moo)] +impl Foo for Bar { + fn foo(){} +} + +#[unstable_feature_bound(feat_bar, feat_koo)] +#[unstable_feature_bound(feat_foo, feat_moo)] +fn moo() { + Bar::foo(); +} + +#[unstable_feature_bound(feat_bar, feat_koo, feat_foo, feat_moo)] +fn koo() { + Bar::foo(); +} + +#[unstable_feature_bound(feat_koo, feat_foo, feat_moo)] +fn boo() { + Bar::foo(); + //~^ ERROR: unstable feature `feat_bar` is used without being enabled. +} + +fn main() {} diff --git a/tests/ui/unstable-feature-bound/unstable_feature_bound_multi_attr.stderr b/tests/ui/unstable-feature-bound/unstable_feature_bound_multi_attr.stderr new file mode 100644 index 00000000000..936c70c1979 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable_feature_bound_multi_attr.stderr @@ -0,0 +1,18 @@ +error: unstable feature `feat_bar` is used without being enabled. + --> $DIR/unstable_feature_bound_multi_attr.rs:32:5 + | +LL | Bar::foo(); + | ^^^ + | + = help: The feature can be enabled by marking the current item with `#[unstable_feature_bound(feat_bar)]` +note: required for `Bar` to implement `Foo` + --> $DIR/unstable_feature_bound_multi_attr.rs:15:6 + | +LL | #[unstable_feature_bound(feat_bar, feat_koo)] + | --------------------------------------------- unsatisfied trait bound introduced here +LL | #[unstable_feature_bound(feat_foo, feat_moo)] +LL | impl Foo for Bar { + | ^^^ ^^^ + +error: aborting due to 1 previous error + diff --git a/tests/ui/unstable-feature-bound/unstable_feature_bound_staged_api.rs b/tests/ui/unstable-feature-bound/unstable_feature_bound_staged_api.rs new file mode 100644 index 00000000000..51e388f7dd3 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable_feature_bound_staged_api.rs @@ -0,0 +1,13 @@ +/// Unstable feature bound can only be used only when +/// #[feature(staged_api)] is enabled. + +pub trait Foo { +} +pub struct Bar; + +#[unstable_feature_bound(feat_bar)] +//~^ ERROR: stability attributes may not be used outside of the standard library +impl Foo for Bar { +} + +fn main(){} diff --git a/tests/ui/unstable-feature-bound/unstable_feature_bound_staged_api.stderr b/tests/ui/unstable-feature-bound/unstable_feature_bound_staged_api.stderr new file mode 100644 index 00000000000..35ab89e6ad9 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable_feature_bound_staged_api.stderr @@ -0,0 +1,9 @@ +error[E0734]: stability attributes may not be used outside of the standard library + --> $DIR/unstable_feature_bound_staged_api.rs:8:1 + | +LL | #[unstable_feature_bound(feat_bar)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0734`. diff --git a/tests/ui/unstable-feature-bound/unstable_impl_codegen.rs b/tests/ui/unstable-feature-bound/unstable_impl_codegen.rs new file mode 100644 index 00000000000..285a64d2250 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable_impl_codegen.rs @@ -0,0 +1,13 @@ +//@ aux-build:unstable_impl_codegen_aux2.rs +//@ run-pass + +/// Downstream crate for unstable impl codegen test +/// that depends on upstream crate in +/// unstable_impl_codegen_aux2.rs + +extern crate unstable_impl_codegen_aux2 as aux; +use aux::foo; + +fn main() { + foo(1_u8); +} diff --git a/tests/ui/unstable-feature-bound/unstable_impl_coherence.disabled.stderr b/tests/ui/unstable-feature-bound/unstable_impl_coherence.disabled.stderr new file mode 100644 index 00000000000..c3147558b03 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable_impl_coherence.disabled.stderr @@ -0,0 +1,13 @@ +error[E0119]: conflicting implementations of trait `Trait` for type `LocalTy` + --> $DIR/unstable_impl_coherence.rs:14:1 + | +LL | impl aux::Trait for LocalTy {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: conflicting implementation in crate `unstable_impl_coherence_aux`: + - impl<T> Trait for T + where unstable feature: `foo`; + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0119`. diff --git a/tests/ui/unstable-feature-bound/unstable_impl_coherence.enabled.stderr b/tests/ui/unstable-feature-bound/unstable_impl_coherence.enabled.stderr new file mode 100644 index 00000000000..c3147558b03 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable_impl_coherence.enabled.stderr @@ -0,0 +1,13 @@ +error[E0119]: conflicting implementations of trait `Trait` for type `LocalTy` + --> $DIR/unstable_impl_coherence.rs:14:1 + | +LL | impl aux::Trait for LocalTy {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: conflicting implementation in crate `unstable_impl_coherence_aux`: + - impl<T> Trait for T + where unstable feature: `foo`; + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0119`. diff --git a/tests/ui/unstable-feature-bound/unstable_impl_coherence.rs b/tests/ui/unstable-feature-bound/unstable_impl_coherence.rs new file mode 100644 index 00000000000..22100f85f71 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable_impl_coherence.rs @@ -0,0 +1,17 @@ +//@ aux-build:unstable_impl_coherence_aux.rs +//@ revisions: enabled disabled + +#![cfg_attr(enabled, feature(foo))] +extern crate unstable_impl_coherence_aux as aux; +use aux::Trait; + +/// Coherence test for unstable impl. +/// No matter feature `foo` is enabled or not, the impl +/// for aux::Trait will be rejected by coherence checking. + +struct LocalTy; + +impl aux::Trait for LocalTy {} +//~^ ERROR: conflicting implementations of trait `Trait` for type `LocalTy` + +fn main(){} diff --git a/tests/ui/unstable-feature-bound/unstable_impl_method_selection.rs b/tests/ui/unstable-feature-bound/unstable_impl_method_selection.rs new file mode 100644 index 00000000000..acf521d3130 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable_impl_method_selection.rs @@ -0,0 +1,15 @@ +//@ aux-build:unstable_impl_method_selection_aux.rs + +extern crate unstable_impl_method_selection_aux as aux; +use aux::Trait; + +// The test below should not infer the type based on the fact +// that `impl Trait for Vec<u64>` is unstable. This would cause breakage +// in downstream crate once `impl Trait for Vec<u64>` is stabilised. + +fn bar() { + vec![].foo(); + //~^ ERROR type annotations needed +} + +fn main() {} diff --git a/tests/ui/unstable-feature-bound/unstable_impl_method_selection.stderr b/tests/ui/unstable-feature-bound/unstable_impl_method_selection.stderr new file mode 100644 index 00000000000..c2bb10f043b --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable_impl_method_selection.stderr @@ -0,0 +1,14 @@ +error[E0283]: type annotations needed + --> $DIR/unstable_impl_method_selection.rs:11:12 + | +LL | vec![].foo(); + | ^^^ cannot infer type for struct `Vec<_>` + | + = note: multiple `impl`s satisfying `Vec<_>: Trait` found in the `unstable_impl_method_selection_aux` crate: + - impl Trait for Vec<u32>; + - impl Trait for Vec<u64> + where unstable feature: `bar`; + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0283`. diff --git a/tests/ui/unstable-feature-bound/unstable_inherent_method.rs b/tests/ui/unstable-feature-bound/unstable_inherent_method.rs new file mode 100644 index 00000000000..5f3095430a8 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable_inherent_method.rs @@ -0,0 +1,23 @@ +#![allow(internal_features)] +#![feature(staged_api)] +#![stable(feature = "a", since = "1.1.1" )] + +/// FIXME(tiif): we haven't allowed marking trait and impl method as +/// unstable yet, but it should be possible. + +#[stable(feature = "a", since = "1.1.1" )] +pub trait Trait { + #[unstable(feature = "feat", issue = "none" )] + #[unstable_feature_bound(foo)] + //~^ ERROR: attribute should be applied to `impl` or free function outside of any `impl` or trait + fn foo(); +} + +#[stable(feature = "a", since = "1.1.1" )] +impl Trait for u8 { + #[unstable_feature_bound(foo)] + //~^ ERROR: attribute should be applied to `impl` or free function outside of any `impl` or trait + fn foo() {} +} + +fn main() {} diff --git a/tests/ui/unstable-feature-bound/unstable_inherent_method.stderr b/tests/ui/unstable-feature-bound/unstable_inherent_method.stderr new file mode 100644 index 00000000000..fa1c39db259 --- /dev/null +++ b/tests/ui/unstable-feature-bound/unstable_inherent_method.stderr @@ -0,0 +1,20 @@ +error: attribute should be applied to `impl` or free function outside of any `impl` or trait + --> $DIR/unstable_inherent_method.rs:11:5 + | +LL | #[unstable_feature_bound(foo)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | +LL | fn foo(); + | --------- not an `impl` or free function + +error: attribute should be applied to `impl` or free function outside of any `impl` or trait + --> $DIR/unstable_inherent_method.rs:18:5 + | +LL | #[unstable_feature_bound(foo)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +LL | +LL | fn foo() {} + | ----------- not an `impl` or free function + +error: aborting due to 2 previous errors + |