diff options
202 files changed, 3196 insertions, 855 deletions
diff --git a/Cargo.lock b/Cargo.lock index ce78d921244..d6714199682 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -3569,6 +3569,7 @@ dependencies = [ "rustc_hir_pretty", "rustc_hir_typeck", "rustc_incremental", + "rustc_index", "rustc_infer", "rustc_interface", "rustc_lint", diff --git a/RELEASES.md b/RELEASES.md index 6aba476103e..29c872eb448 100644 --- a/RELEASES.md +++ b/RELEASES.md @@ -112,6 +112,14 @@ tools. - [Add a Rust-for Linux `auto` CI job to check kernel builds.](https://github.com/rust-lang/rust/pull/125209/) +Version 1.80.1 (2024-08-08) +=========================== + +<a id="1.80.1"></a> + +- [Fix miscompilation in the jump threading MIR optimization when comparing floats](https://github.com/rust-lang/rust/pull/128271) +- [Revert changes to the `dead_code` lint from 1.80.0](https://github.com/rust-lang/rust/pull/128618) + Version 1.80.0 (2024-07-25) ========================== diff --git a/compiler/rustc/Cargo.toml b/compiler/rustc/Cargo.toml index 5008069542f..a2fc9d5c408 100644 --- a/compiler/rustc/Cargo.toml +++ b/compiler/rustc/Cargo.toml @@ -30,5 +30,6 @@ features = ['unprefixed_malloc_on_supported_platforms'] jemalloc = ['dep:jemalloc-sys'] llvm = ['rustc_driver_impl/llvm'] max_level_info = ['rustc_driver_impl/max_level_info'] +rustc_randomized_layouts = ['rustc_driver_impl/rustc_randomized_layouts'] rustc_use_parallel_compiler = ['rustc_driver_impl/rustc_use_parallel_compiler'] # tidy-alphabetical-end diff --git a/compiler/rustc_abi/src/layout.rs b/compiler/rustc_abi/src/layout.rs index 5160b4ed0a2..7432768be4a 100644 --- a/compiler/rustc_abi/src/layout.rs +++ b/compiler/rustc_abi/src/layout.rs @@ -968,8 +968,8 @@ fn univariant< let mut align = if pack.is_some() { dl.i8_align } else { dl.aggregate_align }; let mut max_repr_align = repr.align; let mut inverse_memory_index: IndexVec<u32, FieldIdx> = fields.indices().collect(); - let optimize = !repr.inhibit_struct_field_reordering(); - if optimize && fields.len() > 1 { + let optimize_field_order = !repr.inhibit_struct_field_reordering(); + if optimize_field_order && fields.len() > 1 { let end = if let StructKind::MaybeUnsized = kind { fields.len() - 1 } else { fields.len() }; let optimizing = &mut inverse_memory_index.raw[..end]; let fields_excluding_tail = &fields.raw[..end]; @@ -1176,7 +1176,7 @@ fn univariant< // If field 5 has offset 0, offsets[0] is 5, and memory_index[5] should be 0. // Field 5 would be the first element, so memory_index is i: // Note: if we didn't optimize, it's already right. - let memory_index = if optimize { + let memory_index = if optimize_field_order { inverse_memory_index.invert_bijective_mapping() } else { debug_assert!(inverse_memory_index.iter().copied().eq(fields.indices())); @@ -1189,6 +1189,9 @@ fn univariant< } let mut layout_of_single_non_zst_field = None; let mut abi = Abi::Aggregate { sized }; + + let optimize_abi = !repr.inhibit_newtype_abi_optimization(); + // Try to make this a Scalar/ScalarPair. if sized && size.bytes() > 0 { // We skip *all* ZST here and later check if we are good in terms of alignment. @@ -1205,7 +1208,7 @@ fn univariant< match field.abi { // For plain scalars, or vectors of them, we can't unpack // newtypes for `#[repr(C)]`, as that affects C ABIs. - Abi::Scalar(_) | Abi::Vector { .. } if optimize => { + Abi::Scalar(_) | Abi::Vector { .. } if optimize_abi => { abi = field.abi; } // But scalar pairs are Rust-specific and get diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs index df29b3d54f0..be42bc84932 100644 --- a/compiler/rustc_abi/src/lib.rs +++ b/compiler/rustc_abi/src/lib.rs @@ -43,14 +43,17 @@ bitflags! { const IS_SIMD = 1 << 1; const IS_TRANSPARENT = 1 << 2; // Internal only for now. If true, don't reorder fields. + // On its own it does not prevent ABI optimizations. const IS_LINEAR = 1 << 3; - // If true, the type's layout can be randomized using - // the seed stored in `ReprOptions.field_shuffle_seed` + // If true, the type's crate has opted into layout randomization. + // Other flags can still inhibit reordering and thus randomization. + // The seed stored in `ReprOptions.field_shuffle_seed`. const RANDOMIZE_LAYOUT = 1 << 4; // Any of these flags being set prevent field reordering optimisation. - const IS_UNOPTIMISABLE = ReprFlags::IS_C.bits() + const FIELD_ORDER_UNOPTIMIZABLE = ReprFlags::IS_C.bits() | ReprFlags::IS_SIMD.bits() | ReprFlags::IS_LINEAR.bits(); + const ABI_UNOPTIMIZABLE = ReprFlags::IS_C.bits() | ReprFlags::IS_SIMD.bits(); } } @@ -139,10 +142,14 @@ impl ReprOptions { self.c() || self.int.is_some() } + pub fn inhibit_newtype_abi_optimization(&self) -> bool { + self.flags.intersects(ReprFlags::ABI_UNOPTIMIZABLE) + } + /// Returns `true` if this `#[repr()]` guarantees a fixed field order, /// e.g. `repr(C)` or `repr(<int>)`. pub fn inhibit_struct_field_reordering(&self) -> bool { - self.flags.intersects(ReprFlags::IS_UNOPTIMISABLE) || self.int.is_some() + self.flags.intersects(ReprFlags::FIELD_ORDER_UNOPTIMIZABLE) || self.int.is_some() } /// Returns `true` if this type is valid for reordering and `-Z randomize-layout` diff --git a/compiler/rustc_driver_impl/Cargo.toml b/compiler/rustc_driver_impl/Cargo.toml index 91cbffcd707..6d6d3f35a4b 100644 --- a/compiler/rustc_driver_impl/Cargo.toml +++ b/compiler/rustc_driver_impl/Cargo.toml @@ -23,6 +23,7 @@ rustc_hir_analysis = { path = "../rustc_hir_analysis" } rustc_hir_pretty = { path = "../rustc_hir_pretty" } rustc_hir_typeck = { path = "../rustc_hir_typeck" } rustc_incremental = { path = "../rustc_incremental" } +rustc_index = { path = "../rustc_index" } rustc_infer = { path = "../rustc_infer" } rustc_interface = { path = "../rustc_interface" } rustc_lint = { path = "../rustc_lint" } @@ -72,6 +73,10 @@ ctrlc = "3.4.4" # tidy-alphabetical-start llvm = ['rustc_interface/llvm'] max_level_info = ['rustc_log/max_level_info'] +rustc_randomized_layouts = [ + 'rustc_index/rustc_randomized_layouts', + 'rustc_middle/rustc_randomized_layouts' +] rustc_use_parallel_compiler = [ 'rustc_data_structures/rustc_use_parallel_compiler', 'rustc_interface/rustc_use_parallel_compiler', diff --git a/compiler/rustc_driver_impl/src/lib.rs b/compiler/rustc_driver_impl/src/lib.rs index e49ae60e890..cb2fa6e9d74 100644 --- a/compiler/rustc_driver_impl/src/lib.rs +++ b/compiler/rustc_driver_impl/src/lib.rs @@ -61,7 +61,6 @@ use rustc_session::lint::{Lint, LintId}; use rustc_session::output::collect_crate_types; use rustc_session::{config, filesearch, EarlyDiagCtxt, Session}; use rustc_span::source_map::FileLoader; -use rustc_span::symbol::sym; use rustc_span::FileName; use rustc_target::json::ToJson; use rustc_target::spec::{Target, TargetTriple}; @@ -777,16 +776,8 @@ fn print_crate_info( .config .iter() .filter_map(|&(name, value)| { - // Note that crt-static is a specially recognized cfg - // directive that's printed out here as part of - // rust-lang/rust#37406, but in general the - // `target_feature` cfg is gated under - // rust-lang/rust#29717. For now this is just - // specifically allowing the crt-static cfg and that's - // it, this is intended to get into Cargo and then go - // through to build scripts. - if (name != sym::target_feature || value != Some(sym::crt_dash_static)) - && !sess.is_nightly_build() + // On stable, exclude unstable flags. + if !sess.is_nightly_build() && find_gated_cfg(|cfg_sym| cfg_sym == name).is_some() { return None; diff --git a/compiler/rustc_feature/src/unstable.rs b/compiler/rustc_feature/src/unstable.rs index cd6adbda039..fba65883550 100644 --- a/compiler/rustc_feature/src/unstable.rs +++ b/compiler/rustc_feature/src/unstable.rs @@ -349,8 +349,10 @@ declare_features! ( (unstable, adt_const_params, "1.56.0", Some(95174)), /// Allows defining an `#[alloc_error_handler]`. (unstable, alloc_error_handler, "1.29.0", Some(51540)), - /// Allows trait methods with arbitrary self types. + /// Allows inherent and trait methods with arbitrary self types. (unstable, arbitrary_self_types, "1.23.0", Some(44874)), + /// Allows inherent and trait methods with arbitrary self types that are raw pointers. + (unstable, arbitrary_self_types_pointers, "CURRENT_RUSTC_VERSION", Some(44874)), /// Enables experimental inline assembly support for additional architectures. (unstable, asm_experimental_arch, "1.58.0", Some(93335)), /// Allows using `label` operands in inline assembly. diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs index f83eac7cd6c..3627faf8dfc 100644 --- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs +++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs @@ -1652,6 +1652,13 @@ fn check_fn_or_method<'tcx>( } } +/// The `arbitrary_self_types_pointers` feature implies `arbitrary_self_types`. +#[derive(Clone, Copy, PartialEq)] +enum ArbitrarySelfTypesLevel { + Basic, // just arbitrary_self_types + WithPointers, // both arbitrary_self_types and arbitrary_self_types_pointers +} + #[instrument(level = "debug", skip(wfcx))] fn check_method_receiver<'tcx>( wfcx: &WfCheckingCtxt<'_, 'tcx>, @@ -1684,14 +1691,27 @@ fn check_method_receiver<'tcx>( return Ok(()); } - if tcx.features().arbitrary_self_types { - if !receiver_is_valid(wfcx, span, receiver_ty, self_ty, true) { - // Report error; `arbitrary_self_types` was enabled. - return Err(tcx.dcx().emit_err(errors::InvalidReceiverTy { span, receiver_ty })); - } + let arbitrary_self_types_level = if tcx.features().arbitrary_self_types_pointers { + Some(ArbitrarySelfTypesLevel::WithPointers) + } else if tcx.features().arbitrary_self_types { + Some(ArbitrarySelfTypesLevel::Basic) } else { - if !receiver_is_valid(wfcx, span, receiver_ty, self_ty, false) { - return Err(if receiver_is_valid(wfcx, span, receiver_ty, self_ty, true) { + None + }; + + if !receiver_is_valid(wfcx, span, receiver_ty, self_ty, arbitrary_self_types_level) { + return Err(match arbitrary_self_types_level { + // Wherever possible, emit a message advising folks that the features + // `arbitrary_self_types` or `arbitrary_self_types_pointers` might + // have helped. + None if receiver_is_valid( + wfcx, + span, + receiver_ty, + self_ty, + Some(ArbitrarySelfTypesLevel::Basic), + ) => + { // Report error; would have worked with `arbitrary_self_types`. feature_err( &tcx.sess, @@ -1699,25 +1719,49 @@ fn check_method_receiver<'tcx>( span, format!( "`{receiver_ty}` cannot be used as the type of `self` without \ - the `arbitrary_self_types` feature", + the `arbitrary_self_types` feature", ), ) .with_help(fluent::hir_analysis_invalid_receiver_ty_help) .emit() - } else { - // Report error; would not have worked with `arbitrary_self_types`. + } + None | Some(ArbitrarySelfTypesLevel::Basic) + if receiver_is_valid( + wfcx, + span, + receiver_ty, + self_ty, + Some(ArbitrarySelfTypesLevel::WithPointers), + ) => + { + // Report error; would have worked with `arbitrary_self_types_pointers`. + feature_err( + &tcx.sess, + sym::arbitrary_self_types_pointers, + span, + format!( + "`{receiver_ty}` cannot be used as the type of `self` without \ + the `arbitrary_self_types_pointers` feature", + ), + ) + .with_help(fluent::hir_analysis_invalid_receiver_ty_help) + .emit() + } + _ => + // Report error; would not have worked with `arbitrary_self_types[_pointers]`. + { tcx.dcx().emit_err(errors::InvalidReceiverTy { span, receiver_ty }) - }); - } + } + }); } Ok(()) } /// Returns whether `receiver_ty` would be considered a valid receiver type for `self_ty`. If /// `arbitrary_self_types` is enabled, `receiver_ty` must transitively deref to `self_ty`, possibly -/// through a `*const/mut T` raw pointer. If the feature is not enabled, the requirements are more -/// strict: `receiver_ty` must implement `Receiver` and directly implement -/// `Deref<Target = self_ty>`. +/// through a `*const/mut T` raw pointer if `arbitrary_self_types_pointers` is also enabled. +/// If neither feature is enabled, the requirements are more strict: `receiver_ty` must implement +/// `Receiver` and directly implement `Deref<Target = self_ty>`. /// /// N.B., there are cases this function returns `true` but causes an error to be emitted, /// particularly when `receiver_ty` derefs to a type that is the same as `self_ty` but has the @@ -1727,7 +1771,7 @@ fn receiver_is_valid<'tcx>( span: Span, receiver_ty: Ty<'tcx>, self_ty: Ty<'tcx>, - arbitrary_self_types_enabled: bool, + arbitrary_self_types_enabled: Option<ArbitrarySelfTypesLevel>, ) -> bool { let infcx = wfcx.infcx; let tcx = wfcx.tcx(); @@ -1745,8 +1789,8 @@ fn receiver_is_valid<'tcx>( let mut autoderef = Autoderef::new(infcx, wfcx.param_env, wfcx.body_def_id, span, receiver_ty); - // The `arbitrary_self_types` feature allows raw pointer receivers like `self: *const Self`. - if arbitrary_self_types_enabled { + // The `arbitrary_self_types_pointers` feature allows raw pointer receivers like `self: *const Self`. + if arbitrary_self_types_enabled == Some(ArbitrarySelfTypesLevel::WithPointers) { autoderef = autoderef.include_raw_pointers(); } @@ -1772,7 +1816,7 @@ fn receiver_is_valid<'tcx>( // Without `feature(arbitrary_self_types)`, we require that each step in the // deref chain implement `receiver`. - if !arbitrary_self_types_enabled { + if arbitrary_self_types_enabled.is_none() { if !receiver_is_implemented( wfcx, receiver_trait_def_id, diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/lint.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/lint.rs index 7be45463f15..149bc6d2698 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/lint.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/lint.rs @@ -133,9 +133,6 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { return; }; let sugg = self.add_generic_param_suggestion(generics, self_ty.span, &impl_trait_name); - if sugg.is_empty() { - return; - }; diag.multipart_suggestion( format!( "alternatively use a blanket implementation to implement `{of_trait_name}` for \ @@ -170,6 +167,10 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { let parent_id = tcx.hir().get_parent_item(self_ty.hir_id).def_id; // FIXME: If `type_alias_impl_trait` is enabled, also look for `Trait0<Ty = Trait1>` // and suggest `Trait0<Ty = impl Trait1>`. + // Functions are found in three different contexts. + // 1. Independent functions + // 2. Functions inside trait blocks + // 3. Functions inside impl blocks let (sig, generics, owner) = match tcx.hir_node_by_def_id(parent_id) { hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn(sig, generics, _), .. }) => { (sig, generics, None) @@ -180,6 +181,12 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { owner_id, .. }) => (sig, generics, Some(tcx.parent(owner_id.to_def_id()))), + hir::Node::ImplItem(hir::ImplItem { + kind: hir::ImplItemKind::Fn(sig, _), + generics, + owner_id, + .. + }) => (sig, generics, Some(tcx.parent(owner_id.to_def_id()))), _ => return false, }; let Ok(trait_name) = tcx.sess.source_map().span_to_snippet(self_ty.span) else { @@ -187,6 +194,8 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { }; let impl_sugg = vec![(self_ty.span.shrink_to_lo(), "impl ".to_string())]; let mut is_downgradable = true; + + // Check if trait object is safe for suggesting dynamic dispatch. let is_object_safe = match self_ty.kind { hir::TyKind::TraitObject(objects, ..) => { objects.iter().all(|(o, _)| match o.trait_ref.path.res { @@ -202,8 +211,15 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { } _ => false, }; + + let borrowed = matches!( + tcx.parent_hir_node(self_ty.hir_id), + hir::Node::Ty(hir::Ty { kind: hir::TyKind::Ref(..), .. }) + ); + + // Suggestions for function return type. if let hir::FnRetTy::Return(ty) = sig.decl.output - && ty.hir_id == self_ty.hir_id + && ty.peel_refs().hir_id == self_ty.hir_id { let pre = if !is_object_safe { format!("`{trait_name}` is not object safe, ") @@ -214,14 +230,26 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { "{pre}use `impl {trait_name}` to return an opaque type, as long as you return a \ single underlying type", ); + diag.multipart_suggestion_verbose(msg, impl_sugg, Applicability::MachineApplicable); + + // Suggest `Box<dyn Trait>` for return type if is_object_safe { - diag.multipart_suggestion_verbose( - "alternatively, you can return an owned trait object", + // If the return type is `&Trait`, we don't want + // the ampersand to be displayed in the `Box<dyn Trait>` + // suggestion. + let suggestion = if borrowed { + vec![(ty.span, format!("Box<dyn {trait_name}>"))] + } else { vec![ (ty.span.shrink_to_lo(), "Box<dyn ".to_string()), (ty.span.shrink_to_hi(), ">".to_string()), - ], + ] + }; + + diag.multipart_suggestion_verbose( + "alternatively, you can return an owned trait object", + suggestion, Applicability::MachineApplicable, ); } else if is_downgradable { @@ -230,24 +258,24 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { } return true; } + + // Suggestions for function parameters. for ty in sig.decl.inputs { - if ty.hir_id != self_ty.hir_id { + if ty.peel_refs().hir_id != self_ty.hir_id { continue; } let sugg = self.add_generic_param_suggestion(generics, self_ty.span, &trait_name); - if !sugg.is_empty() { - diag.multipart_suggestion_verbose( - format!("use a new generic type parameter, constrained by `{trait_name}`"), - sugg, - Applicability::MachineApplicable, - ); - diag.multipart_suggestion_verbose( - "you can also use an opaque type, but users won't be able to specify the type \ - parameter when calling the `fn`, having to rely exclusively on type inference", - impl_sugg, - Applicability::MachineApplicable, - ); - } + diag.multipart_suggestion_verbose( + format!("use a new generic type parameter, constrained by `{trait_name}`"), + sugg, + Applicability::MachineApplicable, + ); + diag.multipart_suggestion_verbose( + "you can also use an opaque type, but users won't be able to specify the type \ + parameter when calling the `fn`, having to rely exclusively on type inference", + impl_sugg, + Applicability::MachineApplicable, + ); if !is_object_safe { diag.note(format!("`{trait_name}` it is not object safe, so it can't be `dyn`")); if is_downgradable { @@ -255,14 +283,18 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { diag.downgrade_to_delayed_bug(); } } else { + // No ampersand in suggestion if it's borrowed already + let (dyn_str, paren_dyn_str) = + if borrowed { ("dyn ", "(dyn ") } else { ("&dyn ", "&(dyn ") }; + let sugg = if let hir::TyKind::TraitObject([_, _, ..], _, _) = self_ty.kind { // There are more than one trait bound, we need surrounding parentheses. vec![ - (self_ty.span.shrink_to_lo(), "&(dyn ".to_string()), + (self_ty.span.shrink_to_lo(), paren_dyn_str.to_string()), (self_ty.span.shrink_to_hi(), ")".to_string()), ] } else { - vec![(self_ty.span.shrink_to_lo(), "&dyn ".to_string())] + vec![(self_ty.span.shrink_to_lo(), dyn_str.to_string())] }; diag.multipart_suggestion_verbose( format!( diff --git a/compiler/rustc_hir_typeck/src/method/probe.rs b/compiler/rustc_hir_typeck/src/method/probe.rs index 0cf5403b3c0..2fdba8446bd 100644 --- a/compiler/rustc_hir_typeck/src/method/probe.rs +++ b/compiler/rustc_hir_typeck/src/method/probe.rs @@ -403,7 +403,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { mode, })); } else if bad_ty.reached_raw_pointer - && !self.tcx.features().arbitrary_self_types + && !self.tcx.features().arbitrary_self_types_pointers && !self.tcx.sess.at_least_rust_2018() { // this case used to be allowed by the compiler, diff --git a/compiler/rustc_index/Cargo.toml b/compiler/rustc_index/Cargo.toml index 92ea3f278dc..f7d18f84e34 100644 --- a/compiler/rustc_index/Cargo.toml +++ b/compiler/rustc_index/Cargo.toml @@ -20,4 +20,5 @@ nightly = [ "dep:rustc_macros", "rustc_index_macros/nightly", ] +rustc_randomized_layouts = [] # tidy-alphabetical-end diff --git a/compiler/rustc_index/src/lib.rs b/compiler/rustc_index/src/lib.rs index f773b5b46ad..52f354b8eca 100644 --- a/compiler/rustc_index/src/lib.rs +++ b/compiler/rustc_index/src/lib.rs @@ -33,8 +33,19 @@ pub use vec::IndexVec; /// /// </div> #[macro_export] +#[cfg(not(feature = "rustc_randomized_layouts"))] macro_rules! static_assert_size { ($ty:ty, $size:expr) => { const _: [(); $size] = [(); ::std::mem::size_of::<$ty>()]; }; } + +#[macro_export] +#[cfg(feature = "rustc_randomized_layouts")] +macro_rules! static_assert_size { + ($ty:ty, $size:expr) => { + // no effect other than using the statements. + // struct sizes are not deterministic under randomized layouts + const _: (usize, usize) = ($size, ::std::mem::size_of::<$ty>()); + }; +} diff --git a/compiler/rustc_lint_defs/src/builtin.rs b/compiler/rustc_lint_defs/src/builtin.rs index 7063f488209..25d33126754 100644 --- a/compiler/rustc_lint_defs/src/builtin.rs +++ b/compiler/rustc_lint_defs/src/builtin.rs @@ -3706,7 +3706,7 @@ declare_lint_pass!(UnusedDocComment => [UNUSED_DOC_COMMENTS]); declare_lint! { /// The `missing_abi` lint detects cases where the ABI is omitted from - /// extern declarations. + /// `extern` declarations. /// /// ### Example /// @@ -3720,10 +3720,12 @@ declare_lint! { /// /// ### Explanation /// - /// Historically, Rust implicitly selected C as the ABI for extern - /// declarations. We expect to add new ABIs, like `C-unwind`, in the future, - /// though this has not yet happened, and especially with their addition - /// seeing the ABI easily will make code review easier. + /// For historic reasons, Rust implicitly selects `C` as the default ABI for + /// `extern` declarations. [Other ABIs] like `C-unwind` and `system` have + /// been added since then, and especially with their addition seeing the ABI + /// easily makes code review easier. + /// + /// [Other ABIs]: https://doc.rust-lang.org/reference/items/external-blocks.html#abi pub MISSING_ABI, Allow, "No declared ABI for extern declaration" diff --git a/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs index 1264510a831..53da07aeaa6 100644 --- a/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs +++ b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs @@ -247,8 +247,8 @@ provide! { tcx, def_id, other, cdata, explicit_predicates_of => { table } generics_of => { table } inferred_outlives_of => { table_defaulted_array } - explicit_super_predicates_of => { table } - explicit_implied_predicates_of => { table } + explicit_super_predicates_of => { table_defaulted_array } + explicit_implied_predicates_of => { table_defaulted_array } type_of => { table } type_alias_is_lazy => { table_direct } variances_of => { table } diff --git a/compiler/rustc_metadata/src/rmeta/encoder.rs b/compiler/rustc_metadata/src/rmeta/encoder.rs index 88256c4db04..c55583b39a6 100644 --- a/compiler/rustc_metadata/src/rmeta/encoder.rs +++ b/compiler/rustc_metadata/src/rmeta/encoder.rs @@ -1443,9 +1443,9 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { } if let DefKind::Trait = def_kind { record!(self.tables.trait_def[def_id] <- self.tcx.trait_def(def_id)); - record_array!(self.tables.explicit_super_predicates_of[def_id] <- + record_defaulted_array!(self.tables.explicit_super_predicates_of[def_id] <- self.tcx.explicit_super_predicates_of(def_id).skip_binder()); - record_array!(self.tables.explicit_implied_predicates_of[def_id] <- + record_defaulted_array!(self.tables.explicit_implied_predicates_of[def_id] <- self.tcx.explicit_implied_predicates_of(def_id).skip_binder()); let module_children = self.tcx.module_children_local(local_id); @@ -1454,9 +1454,9 @@ impl<'a, 'tcx> EncodeContext<'a, 'tcx> { } if let DefKind::TraitAlias = def_kind { record!(self.tables.trait_def[def_id] <- self.tcx.trait_def(def_id)); - record_array!(self.tables.explicit_super_predicates_of[def_id] <- + record_defaulted_array!(self.tables.explicit_super_predicates_of[def_id] <- self.tcx.explicit_super_predicates_of(def_id).skip_binder()); - record_array!(self.tables.explicit_implied_predicates_of[def_id] <- + record_defaulted_array!(self.tables.explicit_implied_predicates_of[def_id] <- self.tcx.explicit_implied_predicates_of(def_id).skip_binder()); } if let DefKind::Trait | DefKind::Impl { .. } = def_kind { diff --git a/compiler/rustc_metadata/src/rmeta/mod.rs b/compiler/rustc_metadata/src/rmeta/mod.rs index a84923130c3..8180a507a51 100644 --- a/compiler/rustc_metadata/src/rmeta/mod.rs +++ b/compiler/rustc_metadata/src/rmeta/mod.rs @@ -390,6 +390,8 @@ define_tables! { explicit_item_bounds: Table<DefIndex, LazyArray<(ty::Clause<'static>, Span)>>, explicit_item_super_predicates: Table<DefIndex, LazyArray<(ty::Clause<'static>, Span)>>, inferred_outlives_of: Table<DefIndex, LazyArray<(ty::Clause<'static>, Span)>>, + explicit_super_predicates_of: Table<DefIndex, LazyArray<(ty::Clause<'static>, Span)>>, + explicit_implied_predicates_of: Table<DefIndex, LazyArray<(ty::Clause<'static>, Span)>>, inherent_impls: Table<DefIndex, LazyArray<DefIndex>>, associated_types_for_impl_traits_in_associated_fn: Table<DefIndex, LazyArray<DefId>>, associated_type_for_effects: Table<DefIndex, Option<LazyValue<DefId>>>, @@ -419,10 +421,6 @@ define_tables! { lookup_deprecation_entry: Table<DefIndex, LazyValue<attr::Deprecation>>, explicit_predicates_of: Table<DefIndex, LazyValue<ty::GenericPredicates<'static>>>, generics_of: Table<DefIndex, LazyValue<ty::Generics>>, - explicit_super_predicates_of: Table<DefIndex, LazyArray<(ty::Clause<'static>, Span)>>, - // As an optimization, we only store this for trait aliases, - // since it's identical to explicit_super_predicates_of for traits. - explicit_implied_predicates_of: Table<DefIndex, LazyArray<(ty::Clause<'static>, Span)>>, type_of: Table<DefIndex, LazyValue<ty::EarlyBinder<'static, Ty<'static>>>>, variances_of: Table<DefIndex, LazyArray<ty::Variance>>, fn_sig: Table<DefIndex, LazyValue<ty::EarlyBinder<'static, ty::PolyFnSig<'static>>>>, diff --git a/compiler/rustc_middle/Cargo.toml b/compiler/rustc_middle/Cargo.toml index 69e3b703cce..b23589afb58 100644 --- a/compiler/rustc_middle/Cargo.toml +++ b/compiler/rustc_middle/Cargo.toml @@ -40,5 +40,6 @@ tracing = "0.1" [features] # tidy-alphabetical-start +rustc_randomized_layouts = [] rustc_use_parallel_compiler = ["dep:rustc-rayon-core"] # tidy-alphabetical-end diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index 7b901915037..081a23b6ff3 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -3,8 +3,6 @@ //! [rustc dev guide]: https://rustc-dev-guide.rust-lang.org/mir/index.html use std::borrow::Cow; -use std::cell::RefCell; -use std::collections::hash_map::Entry; use std::fmt::{self, Debug, Formatter}; use std::ops::{Index, IndexMut}; use std::{iter, mem}; @@ -26,7 +24,6 @@ use rustc_index::bit_set::BitSet; use rustc_index::{Idx, IndexSlice, IndexVec}; use rustc_macros::{HashStable, TyDecodable, TyEncodable, TypeFoldable, TypeVisitable}; use rustc_serialize::{Decodable, Encodable}; -use rustc_session::Session; use rustc_span::source_map::Spanned; use rustc_span::symbol::Symbol; use rustc_span::{Span, DUMMY_SP}; @@ -106,65 +103,6 @@ impl<'tcx> HasLocalDecls<'tcx> for Body<'tcx> { } } -thread_local! { - static PASS_NAMES: RefCell<FxHashMap<&'static str, &'static str>> = { - RefCell::new(FxHashMap::default()) - }; -} - -/// Converts a MIR pass name into a snake case form to match the profiling naming style. -fn to_profiler_name(type_name: &'static str) -> &'static str { - PASS_NAMES.with(|names| match names.borrow_mut().entry(type_name) { - Entry::Occupied(e) => *e.get(), - Entry::Vacant(e) => { - let snake_case: String = type_name - .chars() - .flat_map(|c| { - if c.is_ascii_uppercase() { - vec!['_', c.to_ascii_lowercase()] - } else if c == '-' { - vec!['_'] - } else { - vec![c] - } - }) - .collect(); - let result = &*String::leak(format!("mir_pass{}", snake_case)); - e.insert(result); - result - } - }) -} - -/// A streamlined trait that you can implement to create a pass; the -/// pass will be named after the type, and it will consist of a main -/// loop that goes over each available MIR and applies `run_pass`. -pub trait MirPass<'tcx> { - fn name(&self) -> &'static str { - // FIXME Simplify the implementation once more `str` methods get const-stable. - // See copypaste in `MirLint` - const { - let name = std::any::type_name::<Self>(); - crate::util::common::c_name(name) - } - } - - fn profiler_name(&self) -> &'static str { - to_profiler_name(self.name()) - } - - /// Returns `true` if this pass is enabled with the current combination of compiler flags. - fn is_enabled(&self, _sess: &Session) -> bool { - true - } - - fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>); - - fn is_mir_dump_enabled(&self) -> bool { - true - } -} - impl MirPhase { /// Gets the index of the current MirPhase within the set of all `MirPhase`s. /// diff --git a/compiler/rustc_middle/src/query/plumbing.rs b/compiler/rustc_middle/src/query/plumbing.rs index c9bd702cce3..0320a91d142 100644 --- a/compiler/rustc_middle/src/query/plumbing.rs +++ b/compiler/rustc_middle/src/query/plumbing.rs @@ -337,6 +337,7 @@ macro_rules! define_callbacks { // Ensure that values grow no larger than 64 bytes by accident. // Increase this limit if necessary, but do try to keep the size low if possible #[cfg(target_pointer_width = "64")] + #[cfg(not(feature = "rustc_randomized_layouts"))] const _: () = { if mem::size_of::<Value<'static>>() > 64 { panic!("{}", concat!( diff --git a/compiler/rustc_middle/src/ty/inhabitedness/mod.rs b/compiler/rustc_middle/src/ty/inhabitedness/mod.rs index 698104b0462..dd00db8635f 100644 --- a/compiler/rustc_middle/src/ty/inhabitedness/mod.rs +++ b/compiler/rustc_middle/src/ty/inhabitedness/mod.rs @@ -81,10 +81,6 @@ impl<'tcx> VariantDef { adt: ty::AdtDef<'_>, ) -> InhabitedPredicate<'tcx> { debug_assert!(!adt.is_union()); - if self.is_field_list_non_exhaustive() && !self.def_id.is_local() { - // Non-exhaustive variants from other crates are always considered inhabited. - return InhabitedPredicate::True; - } InhabitedPredicate::all( tcx, self.fields.iter().map(|field| { diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index cd94c0afad0..ee70a6346d9 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -35,6 +35,7 @@ use rustc_data_structures::tagged_ptr::CopyTaggedPtr; use rustc_errors::{Diag, ErrorGuaranteed, StashKey}; use rustc_hir::def::{CtorKind, CtorOf, DefKind, DocLinkResMap, LifetimeRes, Res}; use rustc_hir::def_id::{CrateNum, DefId, DefIdMap, LocalDefId, LocalDefIdMap}; +use rustc_hir::LangItem; use rustc_index::IndexVec; use rustc_macros::{ extension, Decodable, Encodable, HashStable, TyDecodable, TyEncodable, TypeFoldable, @@ -1570,8 +1571,15 @@ impl<'tcx> TyCtxt<'tcx> { flags.insert(ReprFlags::RANDOMIZE_LAYOUT); } + // box is special, on the one hand the compiler assumes an ordered layout, with the pointer + // always at offset zero. On the other hand we want scalar abi optimizations. + let is_box = self.is_lang_item(did.to_def_id(), LangItem::OwnedBox); + // This is here instead of layout because the choice must make it into metadata. - if !self.consider_optimizing(|| format!("Reorder fields of {:?}", self.def_path_str(did))) { + if is_box + || !self + .consider_optimizing(|| format!("Reorder fields of {:?}", self.def_path_str(did))) + { flags.insert(ReprFlags::IS_LINEAR); } diff --git a/compiler/rustc_middle/src/util/common.rs b/compiler/rustc_middle/src/util/common.rs index 2038d3f8448..223b2b3bfe4 100644 --- a/compiler/rustc_middle/src/util/common.rs +++ b/compiler/rustc_middle/src/util/common.rs @@ -20,19 +20,3 @@ pub fn to_readable_str(mut val: usize) -> String { groups.join("_") } - -// const wrapper for `if let Some((_, tail)) = name.rsplit_once(':') { tail } else { name }` -pub const fn c_name(name: &'static str) -> &'static str { - // FIXME Simplify the implementation once more `str` methods get const-stable. - // and inline into call site - let bytes = name.as_bytes(); - let mut i = bytes.len(); - while i > 0 && bytes[i - 1] != b':' { - i = i - 1; - } - let (_, bytes) = bytes.split_at(i); - match std::str::from_utf8(bytes) { - Ok(name) => name, - Err(_) => name, - } -} diff --git a/compiler/rustc_mir_dataflow/src/rustc_peek.rs b/compiler/rustc_mir_dataflow/src/rustc_peek.rs index 0171cc85918..8c3e6f49b16 100644 --- a/compiler/rustc_mir_dataflow/src/rustc_peek.rs +++ b/compiler/rustc_mir_dataflow/src/rustc_peek.rs @@ -1,7 +1,7 @@ use rustc_ast::MetaItem; use rustc_hir::def_id::DefId; use rustc_index::bit_set::BitSet; -use rustc_middle::mir::{self, Body, Local, Location, MirPass}; +use rustc_middle::mir::{self, Body, Local, Location}; use rustc_middle::ty::{self, Ty, TyCtxt}; use rustc_span::symbol::{sym, Symbol}; use rustc_span::Span; @@ -18,8 +18,6 @@ use crate::impls::{ use crate::move_paths::{HasMoveData, LookupResult, MoveData, MovePathIndex}; use crate::{Analysis, JoinSemiLattice, ResultsCursor}; -pub struct SanityCheck; - fn has_rustc_mir_with(tcx: TyCtxt<'_>, def_id: DefId, name: Symbol) -> Option<MetaItem> { for attr in tcx.get_attrs(def_id, sym::rustc_mir) { let items = attr.meta_item_list(); @@ -33,53 +31,50 @@ fn has_rustc_mir_with(tcx: TyCtxt<'_>, def_id: DefId, name: Symbol) -> Option<Me None } -// FIXME: This should be a `MirLint`, but it needs to be moved back to `rustc_mir_transform` first. -impl<'tcx> MirPass<'tcx> for SanityCheck { - fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { - let def_id = body.source.def_id(); - if !tcx.has_attr(def_id, sym::rustc_mir) { - debug!("skipping rustc_peek::SanityCheck on {}", tcx.def_path_str(def_id)); - return; - } else { - debug!("running rustc_peek::SanityCheck on {}", tcx.def_path_str(def_id)); - } +pub fn sanity_check<'tcx>(tcx: TyCtxt<'tcx>, body: &Body<'tcx>) { + let def_id = body.source.def_id(); + if !tcx.has_attr(def_id, sym::rustc_mir) { + debug!("skipping rustc_peek::SanityCheck on {}", tcx.def_path_str(def_id)); + return; + } else { + debug!("running rustc_peek::SanityCheck on {}", tcx.def_path_str(def_id)); + } - let param_env = tcx.param_env(def_id); - let move_data = MoveData::gather_moves(body, tcx, param_env, |_| true); + let param_env = tcx.param_env(def_id); + let move_data = MoveData::gather_moves(body, tcx, param_env, |_| true); - if has_rustc_mir_with(tcx, def_id, sym::rustc_peek_maybe_init).is_some() { - let flow_inits = MaybeInitializedPlaces::new(tcx, body, &move_data) - .into_engine(tcx, body) - .iterate_to_fixpoint(); + if has_rustc_mir_with(tcx, def_id, sym::rustc_peek_maybe_init).is_some() { + let flow_inits = MaybeInitializedPlaces::new(tcx, body, &move_data) + .into_engine(tcx, body) + .iterate_to_fixpoint(); - sanity_check_via_rustc_peek(tcx, flow_inits.into_results_cursor(body)); - } + sanity_check_via_rustc_peek(tcx, flow_inits.into_results_cursor(body)); + } - if has_rustc_mir_with(tcx, def_id, sym::rustc_peek_maybe_uninit).is_some() { - let flow_uninits = MaybeUninitializedPlaces::new(tcx, body, &move_data) - .into_engine(tcx, body) - .iterate_to_fixpoint(); + if has_rustc_mir_with(tcx, def_id, sym::rustc_peek_maybe_uninit).is_some() { + let flow_uninits = MaybeUninitializedPlaces::new(tcx, body, &move_data) + .into_engine(tcx, body) + .iterate_to_fixpoint(); - sanity_check_via_rustc_peek(tcx, flow_uninits.into_results_cursor(body)); - } + sanity_check_via_rustc_peek(tcx, flow_uninits.into_results_cursor(body)); + } - if has_rustc_mir_with(tcx, def_id, sym::rustc_peek_definite_init).is_some() { - let flow_def_inits = DefinitelyInitializedPlaces::new(body, &move_data) - .into_engine(tcx, body) - .iterate_to_fixpoint(); + if has_rustc_mir_with(tcx, def_id, sym::rustc_peek_definite_init).is_some() { + let flow_def_inits = DefinitelyInitializedPlaces::new(body, &move_data) + .into_engine(tcx, body) + .iterate_to_fixpoint(); - sanity_check_via_rustc_peek(tcx, flow_def_inits.into_results_cursor(body)); - } + sanity_check_via_rustc_peek(tcx, flow_def_inits.into_results_cursor(body)); + } - if has_rustc_mir_with(tcx, def_id, sym::rustc_peek_liveness).is_some() { - let flow_liveness = MaybeLiveLocals.into_engine(tcx, body).iterate_to_fixpoint(); + if has_rustc_mir_with(tcx, def_id, sym::rustc_peek_liveness).is_some() { + let flow_liveness = MaybeLiveLocals.into_engine(tcx, body).iterate_to_fixpoint(); - sanity_check_via_rustc_peek(tcx, flow_liveness.into_results_cursor(body)); - } + sanity_check_via_rustc_peek(tcx, flow_liveness.into_results_cursor(body)); + } - if has_rustc_mir_with(tcx, def_id, sym::stop_after_dataflow).is_some() { - tcx.dcx().emit_fatal(StopAfterDataFlowEndedCompilation); - } + if has_rustc_mir_with(tcx, def_id, sym::stop_after_dataflow).is_some() { + tcx.dcx().emit_fatal(StopAfterDataFlowEndedCompilation); } } diff --git a/compiler/rustc_mir_transform/src/abort_unwinding_calls.rs b/compiler/rustc_mir_transform/src/abort_unwinding_calls.rs index edb6bc4fbea..e4bc6b3efe4 100644 --- a/compiler/rustc_mir_transform/src/abort_unwinding_calls.rs +++ b/compiler/rustc_mir_transform/src/abort_unwinding_calls.rs @@ -22,7 +22,7 @@ use rustc_target::spec::PanicStrategy; #[derive(PartialEq)] pub struct AbortUnwindingCalls; -impl<'tcx> MirPass<'tcx> for AbortUnwindingCalls { +impl<'tcx> crate::MirPass<'tcx> for AbortUnwindingCalls { fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { let def_id = body.source.def_id(); let kind = tcx.def_kind(def_id); diff --git a/compiler/rustc_mir_transform/src/add_call_guards.rs b/compiler/rustc_mir_transform/src/add_call_guards.rs index df5312d155c..78e850de3c7 100644 --- a/compiler/rustc_mir_transform/src/add_call_guards.rs +++ b/compiler/rustc_mir_transform/src/add_call_guards.rs @@ -30,7 +30,7 @@ pub use self::AddCallGuards::*; * */ -impl<'tcx> MirPass<'tcx> for AddCallGuards { +impl<'tcx> crate::MirPass<'tcx> for AddCallGuards { fn run_pass(&self, _tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { self.add_call_guards(body); } diff --git a/compiler/rustc_mir_transform/src/add_moves_for_packed_drops.rs b/compiler/rustc_mir_transform/src/add_moves_for_packed_drops.rs index e503119a349..4a8196aeff5 100644 --- a/compiler/rustc_mir_transform/src/add_moves_for_packed_drops.rs +++ b/compiler/rustc_mir_transform/src/add_moves_for_packed_drops.rs @@ -37,7 +37,7 @@ use crate::util; /// blowup. pub struct AddMovesForPackedDrops; -impl<'tcx> MirPass<'tcx> for AddMovesForPackedDrops { +impl<'tcx> crate::MirPass<'tcx> for AddMovesForPackedDrops { fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { debug!("add_moves_for_packed_drops({:?} @ {:?})", body.source, body.span); add_moves_for_packed_drops(tcx, body); diff --git a/compiler/rustc_mir_transform/src/add_retag.rs b/compiler/rustc_mir_transform/src/add_retag.rs index 79bc21cab14..2e12064fe73 100644 --- a/compiler/rustc_mir_transform/src/add_retag.rs +++ b/compiler/rustc_mir_transform/src/add_retag.rs @@ -48,7 +48,7 @@ fn may_contain_reference<'tcx>(ty: Ty<'tcx>, depth: u32, tcx: TyCtxt<'tcx>) -> b } } -impl<'tcx> MirPass<'tcx> for AddRetag { +impl<'tcx> crate::MirPass<'tcx> for AddRetag { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.opts.unstable_opts.mir_emit_retag } diff --git a/compiler/rustc_mir_transform/src/add_subtyping_projections.rs b/compiler/rustc_mir_transform/src/add_subtyping_projections.rs index 04204c68f7b..369f6c60084 100644 --- a/compiler/rustc_mir_transform/src/add_subtyping_projections.rs +++ b/compiler/rustc_mir_transform/src/add_subtyping_projections.rs @@ -62,7 +62,7 @@ pub fn subtype_finder<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { checker.patcher.apply(body); } -impl<'tcx> MirPass<'tcx> for Subtyper { +impl<'tcx> crate::MirPass<'tcx> for Subtyper { fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { subtype_finder(tcx, body); } diff --git a/compiler/rustc_mir_transform/src/check_alignment.rs b/compiler/rustc_mir_transform/src/check_alignment.rs index ad362f22ce1..2e072aa262a 100644 --- a/compiler/rustc_mir_transform/src/check_alignment.rs +++ b/compiler/rustc_mir_transform/src/check_alignment.rs @@ -9,7 +9,7 @@ use tracing::{debug, trace}; pub struct CheckAlignment; -impl<'tcx> MirPass<'tcx> for CheckAlignment { +impl<'tcx> crate::MirPass<'tcx> for CheckAlignment { fn is_enabled(&self, sess: &Session) -> bool { // FIXME(#112480) MSVC and rustc disagree on minimum stack alignment on x86 Windows if sess.target.llvm_target == "i686-pc-windows-msvc" { diff --git a/compiler/rustc_mir_transform/src/check_const_item_mutation.rs b/compiler/rustc_mir_transform/src/check_const_item_mutation.rs index 1f615c9d8d1..fb03323e37e 100644 --- a/compiler/rustc_mir_transform/src/check_const_item_mutation.rs +++ b/compiler/rustc_mir_transform/src/check_const_item_mutation.rs @@ -6,11 +6,11 @@ use rustc_session::lint::builtin::CONST_ITEM_MUTATION; use rustc_span::def_id::DefId; use rustc_span::Span; -use crate::{errors, MirLint}; +use crate::errors; pub struct CheckConstItemMutation; -impl<'tcx> MirLint<'tcx> for CheckConstItemMutation { +impl<'tcx> crate::MirLint<'tcx> for CheckConstItemMutation { fn run_lint(&self, tcx: TyCtxt<'tcx>, body: &Body<'tcx>) { let mut checker = ConstMutationChecker { body, tcx, target_local: None }; checker.visit_body(body); diff --git a/compiler/rustc_mir_transform/src/check_packed_ref.rs b/compiler/rustc_mir_transform/src/check_packed_ref.rs index eb76a39be57..2f957de7e78 100644 --- a/compiler/rustc_mir_transform/src/check_packed_ref.rs +++ b/compiler/rustc_mir_transform/src/check_packed_ref.rs @@ -3,11 +3,11 @@ use rustc_middle::mir::*; use rustc_middle::span_bug; use rustc_middle::ty::{self, TyCtxt}; -use crate::{errors, util, MirLint}; +use crate::{errors, util}; pub struct CheckPackedRef; -impl<'tcx> MirLint<'tcx> for CheckPackedRef { +impl<'tcx> crate::MirLint<'tcx> for CheckPackedRef { fn run_lint(&self, tcx: TyCtxt<'tcx>, body: &Body<'tcx>) { let param_env = tcx.param_env(body.source.def_id()); let source_info = SourceInfo::outermost(body.span); diff --git a/compiler/rustc_mir_transform/src/cleanup_post_borrowck.rs b/compiler/rustc_mir_transform/src/cleanup_post_borrowck.rs index 08c9f9f08e6..2f3be1e425d 100644 --- a/compiler/rustc_mir_transform/src/cleanup_post_borrowck.rs +++ b/compiler/rustc_mir_transform/src/cleanup_post_borrowck.rs @@ -21,11 +21,9 @@ use rustc_middle::mir::{Body, BorrowKind, CastKind, Rvalue, StatementKind, Termi use rustc_middle::ty::adjustment::PointerCoercion; use rustc_middle::ty::TyCtxt; -use crate::MirPass; - pub struct CleanupPostBorrowck; -impl<'tcx> MirPass<'tcx> for CleanupPostBorrowck { +impl<'tcx> crate::MirPass<'tcx> for CleanupPostBorrowck { fn run_pass(&self, _tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { for basic_block in body.basic_blocks.as_mut() { for statement in basic_block.statements.iter_mut() { diff --git a/compiler/rustc_mir_transform/src/copy_prop.rs b/compiler/rustc_mir_transform/src/copy_prop.rs index 5c267f85378..85d25ca2231 100644 --- a/compiler/rustc_mir_transform/src/copy_prop.rs +++ b/compiler/rustc_mir_transform/src/copy_prop.rs @@ -19,7 +19,7 @@ use crate::ssa::SsaLocals; /// We want to replace all those locals by `_a`, either copied or moved. pub struct CopyProp; -impl<'tcx> MirPass<'tcx> for CopyProp { +impl<'tcx> crate::MirPass<'tcx> for CopyProp { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.mir_opt_level() >= 1 } diff --git a/compiler/rustc_mir_transform/src/coroutine.rs b/compiler/rustc_mir_transform/src/coroutine.rs index 80ba1c42668..eefb748e49d 100644 --- a/compiler/rustc_mir_transform/src/coroutine.rs +++ b/compiler/rustc_mir_transform/src/coroutine.rs @@ -1535,7 +1535,7 @@ fn check_field_tys_sized<'tcx>( } } -impl<'tcx> MirPass<'tcx> for StateTransform { +impl<'tcx> crate::MirPass<'tcx> for StateTransform { fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { let Some(old_yield_ty) = body.yield_ty() else { // This only applies to coroutines diff --git a/compiler/rustc_mir_transform/src/coverage/mod.rs b/compiler/rustc_mir_transform/src/coverage/mod.rs index bba354d2936..4edba61fdec 100644 --- a/compiler/rustc_mir_transform/src/coverage/mod.rs +++ b/compiler/rustc_mir_transform/src/coverage/mod.rs @@ -28,14 +28,13 @@ use tracing::{debug, debug_span, instrument, trace}; use crate::coverage::counters::{CounterIncrementSite, CoverageCounters}; use crate::coverage::graph::CoverageGraph; use crate::coverage::mappings::ExtractedMappings; -use crate::MirPass; /// Inserts `StatementKind::Coverage` statements that either instrument the binary with injected /// counters, via intrinsic `llvm.instrprof.increment`, and/or inject metadata used during codegen /// to construct the coverage map. pub struct InstrumentCoverage; -impl<'tcx> MirPass<'tcx> for InstrumentCoverage { +impl<'tcx> crate::MirPass<'tcx> for InstrumentCoverage { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.instrument_coverage() } diff --git a/compiler/rustc_mir_transform/src/ctfe_limit.rs b/compiler/rustc_mir_transform/src/ctfe_limit.rs index bf522fd5ef4..ea473b64ce5 100644 --- a/compiler/rustc_mir_transform/src/ctfe_limit.rs +++ b/compiler/rustc_mir_transform/src/ctfe_limit.rs @@ -8,11 +8,9 @@ use rustc_middle::mir::{ use rustc_middle::ty::TyCtxt; use tracing::instrument; -use crate::MirPass; - pub struct CtfeLimit; -impl<'tcx> MirPass<'tcx> for CtfeLimit { +impl<'tcx> crate::MirPass<'tcx> for CtfeLimit { #[instrument(skip(self, _tcx, body))] fn run_pass(&self, _tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { let doms = body.basic_blocks.dominators(); diff --git a/compiler/rustc_mir_transform/src/dataflow_const_prop.rs b/compiler/rustc_mir_transform/src/dataflow_const_prop.rs index b16d25c93bb..46f7408ef80 100644 --- a/compiler/rustc_mir_transform/src/dataflow_const_prop.rs +++ b/compiler/rustc_mir_transform/src/dataflow_const_prop.rs @@ -28,7 +28,7 @@ const PLACE_LIMIT: usize = 100; pub struct DataflowConstProp; -impl<'tcx> MirPass<'tcx> for DataflowConstProp { +impl<'tcx> crate::MirPass<'tcx> for DataflowConstProp { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.mir_opt_level() >= 3 } diff --git a/compiler/rustc_mir_transform/src/dead_store_elimination.rs b/compiler/rustc_mir_transform/src/dead_store_elimination.rs index 39c8db184a5..9081a2e2e30 100644 --- a/compiler/rustc_mir_transform/src/dead_store_elimination.rs +++ b/compiler/rustc_mir_transform/src/dead_store_elimination.rs @@ -132,7 +132,7 @@ pub enum DeadStoreElimination { Final, } -impl<'tcx> MirPass<'tcx> for DeadStoreElimination { +impl<'tcx> crate::MirPass<'tcx> for DeadStoreElimination { fn name(&self) -> &'static str { match self { DeadStoreElimination::Initial => "DeadStoreElimination-initial", diff --git a/compiler/rustc_mir_transform/src/deduplicate_blocks.rs b/compiler/rustc_mir_transform/src/deduplicate_blocks.rs index b38f4a4a823..be50c1da8a4 100644 --- a/compiler/rustc_mir_transform/src/deduplicate_blocks.rs +++ b/compiler/rustc_mir_transform/src/deduplicate_blocks.rs @@ -15,7 +15,7 @@ use super::simplify::simplify_cfg; pub struct DeduplicateBlocks; -impl<'tcx> MirPass<'tcx> for DeduplicateBlocks { +impl<'tcx> crate::MirPass<'tcx> for DeduplicateBlocks { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.mir_opt_level() >= 4 } diff --git a/compiler/rustc_mir_transform/src/deref_separator.rs b/compiler/rustc_mir_transform/src/deref_separator.rs index 0e2fccc85da..a878f777448 100644 --- a/compiler/rustc_mir_transform/src/deref_separator.rs +++ b/compiler/rustc_mir_transform/src/deref_separator.rs @@ -78,7 +78,7 @@ pub fn deref_finder<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { checker.patcher.apply(body); } -impl<'tcx> MirPass<'tcx> for Derefer { +impl<'tcx> crate::MirPass<'tcx> for Derefer { fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { deref_finder(tcx, body); } diff --git a/compiler/rustc_mir_transform/src/dest_prop.rs b/compiler/rustc_mir_transform/src/dest_prop.rs index a6d626d3f8f..8940a21d7fa 100644 --- a/compiler/rustc_mir_transform/src/dest_prop.rs +++ b/compiler/rustc_mir_transform/src/dest_prop.rs @@ -146,11 +146,9 @@ use rustc_mir_dataflow::points::{save_as_intervals, DenseLocationMap, PointIndex use rustc_mir_dataflow::Analysis; use tracing::{debug, trace}; -use crate::MirPass; - pub struct DestinationPropagation; -impl<'tcx> MirPass<'tcx> for DestinationPropagation { +impl<'tcx> crate::MirPass<'tcx> for DestinationPropagation { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { // For now, only run at MIR opt level 3. Two things need to be changed before this can be // turned on by default: diff --git a/compiler/rustc_mir_transform/src/dump_mir.rs b/compiler/rustc_mir_transform/src/dump_mir.rs index 29db45f9450..06ae1b490d7 100644 --- a/compiler/rustc_mir_transform/src/dump_mir.rs +++ b/compiler/rustc_mir_transform/src/dump_mir.rs @@ -7,11 +7,9 @@ use rustc_middle::mir::{write_mir_pretty, Body}; use rustc_middle::ty::TyCtxt; use rustc_session::config::{OutFileName, OutputType}; -use crate::MirPass; - pub struct Marker(pub &'static str); -impl<'tcx> MirPass<'tcx> for Marker { +impl<'tcx> crate::MirPass<'tcx> for Marker { fn name(&self) -> &'static str { self.0 } diff --git a/compiler/rustc_mir_transform/src/early_otherwise_branch.rs b/compiler/rustc_mir_transform/src/early_otherwise_branch.rs index 67b81efd614..1c54cd70023 100644 --- a/compiler/rustc_mir_transform/src/early_otherwise_branch.rs +++ b/compiler/rustc_mir_transform/src/early_otherwise_branch.rs @@ -92,7 +92,7 @@ use super::simplify::simplify_cfg; /// ``` pub struct EarlyOtherwiseBranch; -impl<'tcx> MirPass<'tcx> for EarlyOtherwiseBranch { +impl<'tcx> crate::MirPass<'tcx> for EarlyOtherwiseBranch { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.mir_opt_level() >= 2 } diff --git a/compiler/rustc_mir_transform/src/elaborate_box_derefs.rs b/compiler/rustc_mir_transform/src/elaborate_box_derefs.rs index e5778f8a05d..5dd82f40163 100644 --- a/compiler/rustc_mir_transform/src/elaborate_box_derefs.rs +++ b/compiler/rustc_mir_transform/src/elaborate_box_derefs.rs @@ -88,7 +88,7 @@ impl<'tcx, 'a> MutVisitor<'tcx> for ElaborateBoxDerefVisitor<'tcx, 'a> { pub struct ElaborateBoxDerefs; -impl<'tcx> MirPass<'tcx> for ElaborateBoxDerefs { +impl<'tcx> crate::MirPass<'tcx> for ElaborateBoxDerefs { fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { if let Some(def_id) = tcx.lang_items().owned_box() { let unique_did = tcx.adt_def(def_id).non_enum_variant().fields[FieldIdx::ZERO].did; diff --git a/compiler/rustc_mir_transform/src/elaborate_drops.rs b/compiler/rustc_mir_transform/src/elaborate_drops.rs index d0809d9388d..f4a951ebde6 100644 --- a/compiler/rustc_mir_transform/src/elaborate_drops.rs +++ b/compiler/rustc_mir_transform/src/elaborate_drops.rs @@ -49,7 +49,7 @@ use crate::deref_separator::deref_finder; /// ``` pub struct ElaborateDrops; -impl<'tcx> MirPass<'tcx> for ElaborateDrops { +impl<'tcx> crate::MirPass<'tcx> for ElaborateDrops { #[instrument(level = "trace", skip(self, tcx, body))] fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { debug!("elaborate_drops({:?} @ {:?})", body.source, body.span); diff --git a/compiler/rustc_mir_transform/src/function_item_references.rs b/compiler/rustc_mir_transform/src/function_item_references.rs index b7873e73c18..199fd0f10ee 100644 --- a/compiler/rustc_mir_transform/src/function_item_references.rs +++ b/compiler/rustc_mir_transform/src/function_item_references.rs @@ -9,11 +9,11 @@ use rustc_span::symbol::sym; use rustc_span::Span; use rustc_target::spec::abi::Abi; -use crate::{errors, MirLint}; +use crate::errors; pub struct FunctionItemReferences; -impl<'tcx> MirLint<'tcx> for FunctionItemReferences { +impl<'tcx> crate::MirLint<'tcx> for FunctionItemReferences { fn run_lint(&self, tcx: TyCtxt<'tcx>, body: &Body<'tcx>) { let mut checker = FunctionItemRefChecker { tcx, body }; checker.visit_body(body); diff --git a/compiler/rustc_mir_transform/src/gvn.rs b/compiler/rustc_mir_transform/src/gvn.rs index fb9baeeb3ed..df0fcc42e59 100644 --- a/compiler/rustc_mir_transform/src/gvn.rs +++ b/compiler/rustc_mir_transform/src/gvn.rs @@ -111,7 +111,7 @@ use crate::ssa::{AssignedValue, SsaLocals}; pub struct GVN; -impl<'tcx> MirPass<'tcx> for GVN { +impl<'tcx> crate::MirPass<'tcx> for GVN { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.mir_opt_level() >= 2 } diff --git a/compiler/rustc_mir_transform/src/inline.rs b/compiler/rustc_mir_transform/src/inline.rs index 4482801826a..6cc7e0ee1e4 100644 --- a/compiler/rustc_mir_transform/src/inline.rs +++ b/compiler/rustc_mir_transform/src/inline.rs @@ -42,7 +42,7 @@ struct CallSite<'tcx> { source_info: SourceInfo, } -impl<'tcx> MirPass<'tcx> for Inline { +impl<'tcx> crate::MirPass<'tcx> for Inline { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { // FIXME(#127234): Coverage instrumentation currently doesn't handle inlined // MIR correctly when Modified Condition/Decision Coverage is enabled. diff --git a/compiler/rustc_mir_transform/src/instsimplify.rs b/compiler/rustc_mir_transform/src/instsimplify.rs index 3ec553d0ba0..4fbfa744e67 100644 --- a/compiler/rustc_mir_transform/src/instsimplify.rs +++ b/compiler/rustc_mir_transform/src/instsimplify.rs @@ -27,7 +27,7 @@ impl InstSimplify { } } -impl<'tcx> MirPass<'tcx> for InstSimplify { +impl<'tcx> crate::MirPass<'tcx> for InstSimplify { fn name(&self) -> &'static str { self.name() } diff --git a/compiler/rustc_mir_transform/src/jump_threading.rs b/compiler/rustc_mir_transform/src/jump_threading.rs index 435b6a01163..02dd56e1b4f 100644 --- a/compiler/rustc_mir_transform/src/jump_threading.rs +++ b/compiler/rustc_mir_transform/src/jump_threading.rs @@ -61,7 +61,7 @@ const MAX_BACKTRACK: usize = 5; const MAX_COST: usize = 100; const MAX_PLACES: usize = 100; -impl<'tcx> MirPass<'tcx> for JumpThreading { +impl<'tcx> crate::MirPass<'tcx> for JumpThreading { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.mir_opt_level() >= 2 } diff --git a/compiler/rustc_mir_transform/src/known_panics_lint.rs b/compiler/rustc_mir_transform/src/known_panics_lint.rs index 15d71ee2ac8..61405fb25c6 100644 --- a/compiler/rustc_mir_transform/src/known_panics_lint.rs +++ b/compiler/rustc_mir_transform/src/known_panics_lint.rs @@ -25,11 +25,10 @@ use rustc_target::abi::{Abi, FieldIdx, HasDataLayout, Size, TargetDataLayout, Va use tracing::{debug, instrument, trace}; use crate::errors::{AssertLint, AssertLintKind}; -use crate::MirLint; pub struct KnownPanicsLint; -impl<'tcx> MirLint<'tcx> for KnownPanicsLint { +impl<'tcx> crate::MirLint<'tcx> for KnownPanicsLint { fn run_lint(&self, tcx: TyCtxt<'tcx>, body: &Body<'tcx>) { if body.tainted_by_errors.is_some() { return; diff --git a/compiler/rustc_mir_transform/src/large_enums.rs b/compiler/rustc_mir_transform/src/large_enums.rs index cbc3169f2f1..f02ba71ddc6 100644 --- a/compiler/rustc_mir_transform/src/large_enums.rs +++ b/compiler/rustc_mir_transform/src/large_enums.rs @@ -27,7 +27,7 @@ pub struct EnumSizeOpt { pub(crate) discrepancy: u64, } -impl<'tcx> MirPass<'tcx> for EnumSizeOpt { +impl<'tcx> crate::MirPass<'tcx> for EnumSizeOpt { fn is_enabled(&self, sess: &Session) -> bool { // There are some differences in behavior on wasm and ARM that are not properly // understood, so we conservatively treat this optimization as unsound: diff --git a/compiler/rustc_mir_transform/src/lib.rs b/compiler/rustc_mir_transform/src/lib.rs index 9e460a725ee..62e73ba2c8e 100644 --- a/compiler/rustc_mir_transform/src/lib.rs +++ b/compiler/rustc_mir_transform/src/lib.rs @@ -26,13 +26,12 @@ use rustc_hir::intravisit::{self, Visitor}; use rustc_index::IndexVec; use rustc_middle::mir::{ AnalysisPhase, Body, CallSource, ClearCrossCrate, ConstOperand, ConstQualifs, LocalDecl, - MirPass, MirPhase, Operand, Place, ProjectionElem, Promoted, RuntimePhase, Rvalue, SourceInfo, + MirPhase, Operand, Place, ProjectionElem, Promoted, RuntimePhase, Rvalue, SourceInfo, Statement, StatementKind, TerminatorKind, START_BLOCK, }; use rustc_middle::ty::{self, TyCtxt, TypeVisitableExt}; use rustc_middle::util::Providers; use rustc_middle::{bug, query, span_bug}; -use rustc_mir_dataflow::rustc_peek; use rustc_span::source_map::Spanned; use rustc_span::{sym, DUMMY_SP}; use rustc_trait_selection::traits; @@ -41,7 +40,7 @@ use tracing::{debug, trace}; #[macro_use] mod pass_manager; -use pass_manager::{self as pm, Lint, MirLint, WithMinOptLevel}; +use pass_manager::{self as pm, Lint, MirLint, MirPass, WithMinOptLevel}; mod abort_unwinding_calls; mod add_call_guards; @@ -96,6 +95,7 @@ mod remove_unneeded_drops; mod remove_zsts; mod required_consts; mod reveal_all; +mod sanity_check; mod shim; mod ssa; // This pass is public to allow external drivers to perform MIR cleanup @@ -288,7 +288,7 @@ fn mir_built(tcx: TyCtxt<'_>, def: LocalDefId) -> &Steal<Body<'_>> { &Lint(function_item_references::FunctionItemReferences), // What we need to do constant evaluation. &simplify::SimplifyCfg::Initial, - &rustc_peek::SanityCheck, // Just a lint + &Lint(sanity_check::SanityCheck), ], None, ); diff --git a/compiler/rustc_mir_transform/src/lower_intrinsics.rs b/compiler/rustc_mir_transform/src/lower_intrinsics.rs index a9bdff95fe5..55eec332306 100644 --- a/compiler/rustc_mir_transform/src/lower_intrinsics.rs +++ b/compiler/rustc_mir_transform/src/lower_intrinsics.rs @@ -9,7 +9,7 @@ use crate::take_array; pub struct LowerIntrinsics; -impl<'tcx> MirPass<'tcx> for LowerIntrinsics { +impl<'tcx> crate::MirPass<'tcx> for LowerIntrinsics { fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { let local_decls = &body.local_decls; for block in body.basic_blocks.as_mut() { diff --git a/compiler/rustc_mir_transform/src/lower_slice_len.rs b/compiler/rustc_mir_transform/src/lower_slice_len.rs index 77a7f4f47dd..555309a7750 100644 --- a/compiler/rustc_mir_transform/src/lower_slice_len.rs +++ b/compiler/rustc_mir_transform/src/lower_slice_len.rs @@ -7,7 +7,7 @@ use rustc_middle::ty::TyCtxt; pub struct LowerSliceLenCalls; -impl<'tcx> MirPass<'tcx> for LowerSliceLenCalls { +impl<'tcx> crate::MirPass<'tcx> for LowerSliceLenCalls { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.mir_opt_level() > 0 } diff --git a/compiler/rustc_mir_transform/src/match_branches.rs b/compiler/rustc_mir_transform/src/match_branches.rs index 5240f1c887c..233b39fb47a 100644 --- a/compiler/rustc_mir_transform/src/match_branches.rs +++ b/compiler/rustc_mir_transform/src/match_branches.rs @@ -12,7 +12,7 @@ use super::simplify::simplify_cfg; pub struct MatchBranchSimplification; -impl<'tcx> MirPass<'tcx> for MatchBranchSimplification { +impl<'tcx> crate::MirPass<'tcx> for MatchBranchSimplification { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.mir_opt_level() >= 1 } diff --git a/compiler/rustc_mir_transform/src/mentioned_items.rs b/compiler/rustc_mir_transform/src/mentioned_items.rs index 32c8064ebca..41ce03caf08 100644 --- a/compiler/rustc_mir_transform/src/mentioned_items.rs +++ b/compiler/rustc_mir_transform/src/mentioned_items.rs @@ -1,5 +1,5 @@ use rustc_middle::mir::visit::Visitor; -use rustc_middle::mir::{self, Location, MentionedItem, MirPass}; +use rustc_middle::mir::{self, Location, MentionedItem}; use rustc_middle::ty::adjustment::PointerCoercion; use rustc_middle::ty::{self, TyCtxt}; use rustc_session::Session; @@ -13,7 +13,7 @@ struct MentionedItemsVisitor<'a, 'tcx> { mentioned_items: &'a mut Vec<Spanned<MentionedItem<'tcx>>>, } -impl<'tcx> MirPass<'tcx> for MentionedItems { +impl<'tcx> crate::MirPass<'tcx> for MentionedItems { fn is_enabled(&self, _sess: &Session) -> bool { // If this pass is skipped the collector assume that nothing got mentioned! We could // potentially skip it in opt-level 0 if we are sure that opt-level will never *remove* uses diff --git a/compiler/rustc_mir_transform/src/multiple_return_terminators.rs b/compiler/rustc_mir_transform/src/multiple_return_terminators.rs index 1e87a0e01d9..1b4972d487e 100644 --- a/compiler/rustc_mir_transform/src/multiple_return_terminators.rs +++ b/compiler/rustc_mir_transform/src/multiple_return_terminators.rs @@ -9,7 +9,7 @@ use crate::simplify; pub struct MultipleReturnTerminators; -impl<'tcx> MirPass<'tcx> for MultipleReturnTerminators { +impl<'tcx> crate::MirPass<'tcx> for MultipleReturnTerminators { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.mir_opt_level() >= 4 } diff --git a/compiler/rustc_mir_transform/src/nrvo.rs b/compiler/rustc_mir_transform/src/nrvo.rs index dd1875f2a78..94573a9d89b 100644 --- a/compiler/rustc_mir_transform/src/nrvo.rs +++ b/compiler/rustc_mir_transform/src/nrvo.rs @@ -8,8 +8,6 @@ use rustc_middle::mir::{self, BasicBlock, Local, Location}; use rustc_middle::ty::TyCtxt; use tracing::{debug, trace}; -use crate::MirPass; - /// This pass looks for MIR that always copies the same local into the return place and eliminates /// the copy by renaming all uses of that local to `_0`. /// @@ -34,7 +32,7 @@ use crate::MirPass; /// [#71003]: https://github.com/rust-lang/rust/pull/71003 pub struct RenameReturnPlace; -impl<'tcx> MirPass<'tcx> for RenameReturnPlace { +impl<'tcx> crate::MirPass<'tcx> for RenameReturnPlace { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { // unsound: #111005 sess.mir_opt_level() > 0 && sess.opts.unstable_opts.unsound_mir_opts diff --git a/compiler/rustc_mir_transform/src/pass_manager.rs b/compiler/rustc_mir_transform/src/pass_manager.rs index 51e27600404..28d4e1a1c91 100644 --- a/compiler/rustc_mir_transform/src/pass_manager.rs +++ b/compiler/rustc_mir_transform/src/pass_manager.rs @@ -1,19 +1,99 @@ +use std::cell::RefCell; +use std::collections::hash_map::Entry; + +use rustc_data_structures::fx::FxHashMap; use rustc_middle::mir::{self, Body, MirPhase, RuntimePhase}; use rustc_middle::ty::TyCtxt; use rustc_session::Session; use tracing::trace; use crate::lint::lint_body; -use crate::{validate, MirPass}; +use crate::validate; + +thread_local! { + static PASS_NAMES: RefCell<FxHashMap<&'static str, &'static str>> = { + RefCell::new(FxHashMap::default()) + }; +} + +/// Converts a MIR pass name into a snake case form to match the profiling naming style. +fn to_profiler_name(type_name: &'static str) -> &'static str { + PASS_NAMES.with(|names| match names.borrow_mut().entry(type_name) { + Entry::Occupied(e) => *e.get(), + Entry::Vacant(e) => { + let snake_case: String = type_name + .chars() + .flat_map(|c| { + if c.is_ascii_uppercase() { + vec!['_', c.to_ascii_lowercase()] + } else if c == '-' { + vec!['_'] + } else { + vec![c] + } + }) + .collect(); + let result = &*String::leak(format!("mir_pass{}", snake_case)); + e.insert(result); + result + } + }) +} + +// const wrapper for `if let Some((_, tail)) = name.rsplit_once(':') { tail } else { name }` +const fn c_name(name: &'static str) -> &'static str { + // FIXME Simplify the implementation once more `str` methods get const-stable. + // and inline into call site + let bytes = name.as_bytes(); + let mut i = bytes.len(); + while i > 0 && bytes[i - 1] != b':' { + i = i - 1; + } + let (_, bytes) = bytes.split_at(i); + match std::str::from_utf8(bytes) { + Ok(name) => name, + Err(_) => name, + } +} + +/// A streamlined trait that you can implement to create a pass; the +/// pass will be named after the type, and it will consist of a main +/// loop that goes over each available MIR and applies `run_pass`. +pub(super) trait MirPass<'tcx> { + fn name(&self) -> &'static str { + // FIXME Simplify the implementation once more `str` methods get const-stable. + // See copypaste in `MirLint` + const { + let name = std::any::type_name::<Self>(); + c_name(name) + } + } + + fn profiler_name(&self) -> &'static str { + to_profiler_name(self.name()) + } + + /// Returns `true` if this pass is enabled with the current combination of compiler flags. + fn is_enabled(&self, _sess: &Session) -> bool { + true + } + + fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>); + + fn is_mir_dump_enabled(&self) -> bool { + true + } +} -/// Just like `MirPass`, except it cannot mutate `Body`. -pub trait MirLint<'tcx> { +/// Just like `MirPass`, except it cannot mutate `Body`, and MIR dumping is +/// disabled (via the `Lint` adapter). +pub(super) trait MirLint<'tcx> { fn name(&self) -> &'static str { // FIXME Simplify the implementation once more `str` methods get const-stable. // See copypaste in `MirPass` const { let name = std::any::type_name::<Self>(); - rustc_middle::util::common::c_name(name) + c_name(name) } } @@ -26,7 +106,7 @@ pub trait MirLint<'tcx> { /// An adapter for `MirLint`s that implements `MirPass`. #[derive(Debug, Clone)] -pub struct Lint<T>(pub T); +pub(super) struct Lint<T>(pub T); impl<'tcx, T> MirPass<'tcx> for Lint<T> where @@ -49,7 +129,7 @@ where } } -pub struct WithMinOptLevel<T>(pub u32, pub T); +pub(super) struct WithMinOptLevel<T>(pub u32, pub T); impl<'tcx, T> MirPass<'tcx> for WithMinOptLevel<T> where @@ -70,7 +150,7 @@ where /// Run the sequence of passes without validating the MIR after each pass. The MIR is still /// validated at the end. -pub fn run_passes_no_validate<'tcx>( +pub(super) fn run_passes_no_validate<'tcx>( tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>, passes: &[&dyn MirPass<'tcx>], @@ -80,7 +160,7 @@ pub fn run_passes_no_validate<'tcx>( } /// The optional `phase_change` is applied after executing all the passes, if present -pub fn run_passes<'tcx>( +pub(super) fn run_passes<'tcx>( tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>, passes: &[&dyn MirPass<'tcx>], @@ -89,7 +169,7 @@ pub fn run_passes<'tcx>( run_passes_inner(tcx, body, passes, phase_change, true); } -pub fn should_run_pass<'tcx, P>(tcx: TyCtxt<'tcx>, pass: &P) -> bool +pub(super) fn should_run_pass<'tcx, P>(tcx: TyCtxt<'tcx>, pass: &P) -> bool where P: MirPass<'tcx> + ?Sized, { @@ -185,11 +265,11 @@ fn run_passes_inner<'tcx>( } } -pub fn validate_body<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>, when: String) { +pub(super) fn validate_body<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>, when: String) { validate::Validator { when, mir_phase: body.phase }.run_pass(tcx, body); } -pub fn dump_mir_for_pass<'tcx>( +pub(super) fn dump_mir_for_pass<'tcx>( tcx: TyCtxt<'tcx>, body: &Body<'tcx>, pass_name: &str, @@ -205,7 +285,7 @@ pub fn dump_mir_for_pass<'tcx>( ); } -pub fn dump_mir_for_phase_change<'tcx>(tcx: TyCtxt<'tcx>, body: &Body<'tcx>) { +pub(super) fn dump_mir_for_phase_change<'tcx>(tcx: TyCtxt<'tcx>, body: &Body<'tcx>) { assert_eq!(body.pass_count, 0); mir::dump_mir(tcx, true, body.phase.name(), &"after", body, |_, _| Ok(())) } diff --git a/compiler/rustc_mir_transform/src/prettify.rs b/compiler/rustc_mir_transform/src/prettify.rs index 14dd0c6f61e..ad71c622660 100644 --- a/compiler/rustc_mir_transform/src/prettify.rs +++ b/compiler/rustc_mir_transform/src/prettify.rs @@ -17,7 +17,7 @@ use rustc_session::Session; /// `IndexVec`, unless that successor is a back-edge (such as from a loop). pub struct ReorderBasicBlocks; -impl<'tcx> MirPass<'tcx> for ReorderBasicBlocks { +impl<'tcx> crate::MirPass<'tcx> for ReorderBasicBlocks { fn is_enabled(&self, _session: &Session) -> bool { false } @@ -45,7 +45,7 @@ impl<'tcx> MirPass<'tcx> for ReorderBasicBlocks { /// (Does not reorder arguments nor the [`RETURN_PLACE`].) pub struct ReorderLocals; -impl<'tcx> MirPass<'tcx> for ReorderLocals { +impl<'tcx> crate::MirPass<'tcx> for ReorderLocals { fn is_enabled(&self, _session: &Session) -> bool { false } diff --git a/compiler/rustc_mir_transform/src/promote_consts.rs b/compiler/rustc_mir_transform/src/promote_consts.rs index 0c940bac13c..cf0a569ffa4 100644 --- a/compiler/rustc_mir_transform/src/promote_consts.rs +++ b/compiler/rustc_mir_transform/src/promote_consts.rs @@ -41,7 +41,7 @@ pub struct PromoteTemps<'tcx> { pub promoted_fragments: Cell<IndexVec<Promoted, Body<'tcx>>>, } -impl<'tcx> MirPass<'tcx> for PromoteTemps<'tcx> { +impl<'tcx> crate::MirPass<'tcx> for PromoteTemps<'tcx> { fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { // There's not really any point in promoting errorful MIR. // diff --git a/compiler/rustc_mir_transform/src/ref_prop.rs b/compiler/rustc_mir_transform/src/ref_prop.rs index 8d0b47cb34a..4a447d24cce 100644 --- a/compiler/rustc_mir_transform/src/ref_prop.rs +++ b/compiler/rustc_mir_transform/src/ref_prop.rs @@ -72,7 +72,7 @@ use crate::ssa::{SsaLocals, StorageLiveLocals}; /// so we perform all the possible instantiations without removing the `_1 = &_2` statement. pub struct ReferencePropagation; -impl<'tcx> MirPass<'tcx> for ReferencePropagation { +impl<'tcx> crate::MirPass<'tcx> for ReferencePropagation { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.mir_opt_level() >= 2 } diff --git a/compiler/rustc_mir_transform/src/remove_noop_landing_pads.rs b/compiler/rustc_mir_transform/src/remove_noop_landing_pads.rs index 33c7d1695c0..ccba8d015e3 100644 --- a/compiler/rustc_mir_transform/src/remove_noop_landing_pads.rs +++ b/compiler/rustc_mir_transform/src/remove_noop_landing_pads.rs @@ -10,7 +10,7 @@ use tracing::debug; /// terrible code for these. pub struct RemoveNoopLandingPads; -impl<'tcx> MirPass<'tcx> for RemoveNoopLandingPads { +impl<'tcx> crate::MirPass<'tcx> for RemoveNoopLandingPads { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.panic_strategy() != PanicStrategy::Abort } diff --git a/compiler/rustc_mir_transform/src/remove_place_mention.rs b/compiler/rustc_mir_transform/src/remove_place_mention.rs index 6c0b50fafdb..5801fdedceb 100644 --- a/compiler/rustc_mir_transform/src/remove_place_mention.rs +++ b/compiler/rustc_mir_transform/src/remove_place_mention.rs @@ -6,7 +6,7 @@ use tracing::trace; pub struct RemovePlaceMention; -impl<'tcx> MirPass<'tcx> for RemovePlaceMention { +impl<'tcx> crate::MirPass<'tcx> for RemovePlaceMention { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { !sess.opts.unstable_opts.mir_keep_place_mention } diff --git a/compiler/rustc_mir_transform/src/remove_storage_markers.rs b/compiler/rustc_mir_transform/src/remove_storage_markers.rs index af89395dddd..329b30d3890 100644 --- a/compiler/rustc_mir_transform/src/remove_storage_markers.rs +++ b/compiler/rustc_mir_transform/src/remove_storage_markers.rs @@ -6,7 +6,7 @@ use tracing::trace; pub struct RemoveStorageMarkers; -impl<'tcx> MirPass<'tcx> for RemoveStorageMarkers { +impl<'tcx> crate::MirPass<'tcx> for RemoveStorageMarkers { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.mir_opt_level() > 0 && !sess.emit_lifetime_markers() } diff --git a/compiler/rustc_mir_transform/src/remove_uninit_drops.rs b/compiler/rustc_mir_transform/src/remove_uninit_drops.rs index fae1cb5f7d8..aafe971311d 100644 --- a/compiler/rustc_mir_transform/src/remove_uninit_drops.rs +++ b/compiler/rustc_mir_transform/src/remove_uninit_drops.rs @@ -6,8 +6,6 @@ use rustc_mir_dataflow::move_paths::{LookupResult, MoveData, MovePathIndex}; use rustc_mir_dataflow::{move_path_children_matching, Analysis, MaybeReachable}; use rustc_target::abi::FieldIdx; -use crate::MirPass; - /// Removes `Drop` terminators whose target is known to be uninitialized at /// that point. /// @@ -18,7 +16,7 @@ use crate::MirPass; /// [#90770]: https://github.com/rust-lang/rust/issues/90770 pub struct RemoveUninitDrops; -impl<'tcx> MirPass<'tcx> for RemoveUninitDrops { +impl<'tcx> crate::MirPass<'tcx> for RemoveUninitDrops { fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { let param_env = tcx.param_env(body.source.def_id()); let move_data = diff --git a/compiler/rustc_mir_transform/src/remove_unneeded_drops.rs b/compiler/rustc_mir_transform/src/remove_unneeded_drops.rs index 9adcb5a38fd..43109aae0fb 100644 --- a/compiler/rustc_mir_transform/src/remove_unneeded_drops.rs +++ b/compiler/rustc_mir_transform/src/remove_unneeded_drops.rs @@ -12,7 +12,7 @@ use super::simplify::simplify_cfg; pub struct RemoveUnneededDrops; -impl<'tcx> MirPass<'tcx> for RemoveUnneededDrops { +impl<'tcx> crate::MirPass<'tcx> for RemoveUnneededDrops { fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { trace!("Running RemoveUnneededDrops on {:?}", body.source); diff --git a/compiler/rustc_mir_transform/src/remove_zsts.rs b/compiler/rustc_mir_transform/src/remove_zsts.rs index 9a94cae3382..9aa46bd4fba 100644 --- a/compiler/rustc_mir_transform/src/remove_zsts.rs +++ b/compiler/rustc_mir_transform/src/remove_zsts.rs @@ -6,7 +6,7 @@ use rustc_middle::ty::{self, Ty, TyCtxt}; pub struct RemoveZsts; -impl<'tcx> MirPass<'tcx> for RemoveZsts { +impl<'tcx> crate::MirPass<'tcx> for RemoveZsts { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.mir_opt_level() > 0 } diff --git a/compiler/rustc_mir_transform/src/reveal_all.rs b/compiler/rustc_mir_transform/src/reveal_all.rs index 5eaa024f846..29312a99cbc 100644 --- a/compiler/rustc_mir_transform/src/reveal_all.rs +++ b/compiler/rustc_mir_transform/src/reveal_all.rs @@ -6,7 +6,7 @@ use rustc_middle::ty::{self, Ty, TyCtxt}; pub struct RevealAll; -impl<'tcx> MirPass<'tcx> for RevealAll { +impl<'tcx> crate::MirPass<'tcx> for RevealAll { fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { let param_env = tcx.param_env_reveal_all_normalized(body.source.def_id()); RevealAllVisitor { tcx, param_env }.visit_body_preserves_cfg(body); diff --git a/compiler/rustc_mir_transform/src/sanity_check.rs b/compiler/rustc_mir_transform/src/sanity_check.rs new file mode 100644 index 00000000000..c9445d18162 --- /dev/null +++ b/compiler/rustc_mir_transform/src/sanity_check.rs @@ -0,0 +1,11 @@ +use rustc_middle::mir::Body; +use rustc_middle::ty::TyCtxt; +use rustc_mir_dataflow::rustc_peek::sanity_check; + +pub(super) struct SanityCheck; + +impl<'tcx> crate::MirLint<'tcx> for SanityCheck { + fn run_lint(&self, tcx: TyCtxt<'tcx>, body: &Body<'tcx>) { + sanity_check(tcx, body); + } +} diff --git a/compiler/rustc_mir_transform/src/simplify.rs b/compiler/rustc_mir_transform/src/simplify.rs index d1c2c91e00f..1478b86d3c7 100644 --- a/compiler/rustc_mir_transform/src/simplify.rs +++ b/compiler/rustc_mir_transform/src/simplify.rs @@ -74,7 +74,7 @@ pub(crate) fn simplify_cfg(body: &mut Body<'_>) { body.basic_blocks_mut().raw.shrink_to_fit(); } -impl<'tcx> MirPass<'tcx> for SimplifyCfg { +impl<'tcx> crate::MirPass<'tcx> for SimplifyCfg { fn name(&self) -> &'static str { self.name() } @@ -366,7 +366,7 @@ pub enum SimplifyLocals { Final, } -impl<'tcx> MirPass<'tcx> for SimplifyLocals { +impl<'tcx> crate::MirPass<'tcx> for SimplifyLocals { fn name(&self) -> &'static str { match &self { SimplifyLocals::BeforeConstProp => "SimplifyLocals-before-const-prop", diff --git a/compiler/rustc_mir_transform/src/simplify_branches.rs b/compiler/rustc_mir_transform/src/simplify_branches.rs index 7c8a686d007..5a014bb7346 100644 --- a/compiler/rustc_mir_transform/src/simplify_branches.rs +++ b/compiler/rustc_mir_transform/src/simplify_branches.rs @@ -7,7 +7,7 @@ pub enum SimplifyConstCondition { Final, } /// A pass that replaces a branch with a goto when its condition is known. -impl<'tcx> MirPass<'tcx> for SimplifyConstCondition { +impl<'tcx> crate::MirPass<'tcx> for SimplifyConstCondition { fn name(&self) -> &'static str { match self { SimplifyConstCondition::AfterConstProp => "SimplifyConstCondition-after-const-prop", diff --git a/compiler/rustc_mir_transform/src/simplify_comparison_integral.rs b/compiler/rustc_mir_transform/src/simplify_comparison_integral.rs index ac892adebec..bd30ecc59b3 100644 --- a/compiler/rustc_mir_transform/src/simplify_comparison_integral.rs +++ b/compiler/rustc_mir_transform/src/simplify_comparison_integral.rs @@ -9,8 +9,6 @@ use rustc_middle::mir::{ use rustc_middle::ty::{Ty, TyCtxt}; use tracing::trace; -use super::MirPass; - /// Pass to convert `if` conditions on integrals into switches on the integral. /// For an example, it turns something like /// @@ -27,7 +25,7 @@ use super::MirPass; /// ``` pub struct SimplifyComparisonIntegral; -impl<'tcx> MirPass<'tcx> for SimplifyComparisonIntegral { +impl<'tcx> crate::MirPass<'tcx> for SimplifyComparisonIntegral { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.mir_opt_level() > 0 } diff --git a/compiler/rustc_mir_transform/src/single_use_consts.rs b/compiler/rustc_mir_transform/src/single_use_consts.rs index 35cb6872fe9..64a92872830 100644 --- a/compiler/rustc_mir_transform/src/single_use_consts.rs +++ b/compiler/rustc_mir_transform/src/single_use_consts.rs @@ -21,7 +21,7 @@ use rustc_middle::ty::TyCtxt; /// needed to do that too, including updating the debug info. pub struct SingleUseConsts; -impl<'tcx> MirPass<'tcx> for SingleUseConsts { +impl<'tcx> crate::MirPass<'tcx> for SingleUseConsts { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.mir_opt_level() > 0 } diff --git a/compiler/rustc_mir_transform/src/sroa.rs b/compiler/rustc_mir_transform/src/sroa.rs index 906e2c23f3b..3c5ccc0c99a 100644 --- a/compiler/rustc_mir_transform/src/sroa.rs +++ b/compiler/rustc_mir_transform/src/sroa.rs @@ -13,7 +13,7 @@ use tracing::{debug, instrument}; pub struct ScalarReplacementOfAggregates; -impl<'tcx> MirPass<'tcx> for ScalarReplacementOfAggregates { +impl<'tcx> crate::MirPass<'tcx> for ScalarReplacementOfAggregates { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.mir_opt_level() >= 2 } diff --git a/compiler/rustc_mir_transform/src/unreachable_enum_branching.rs b/compiler/rustc_mir_transform/src/unreachable_enum_branching.rs index 2427fbac5ee..51a322628ee 100644 --- a/compiler/rustc_mir_transform/src/unreachable_enum_branching.rs +++ b/compiler/rustc_mir_transform/src/unreachable_enum_branching.rs @@ -12,8 +12,6 @@ use rustc_middle::ty::{Ty, TyCtxt}; use rustc_target::abi::{Abi, Variants}; use tracing::trace; -use crate::MirPass; - pub struct UnreachableEnumBranching; fn get_discriminant_local(terminator: &TerminatorKind<'_>) -> Option<Local> { @@ -74,7 +72,7 @@ fn variant_discriminants<'tcx>( } } -impl<'tcx> MirPass<'tcx> for UnreachableEnumBranching { +impl<'tcx> crate::MirPass<'tcx> for UnreachableEnumBranching { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { sess.mir_opt_level() > 0 } diff --git a/compiler/rustc_mir_transform/src/unreachable_prop.rs b/compiler/rustc_mir_transform/src/unreachable_prop.rs index a6c3c3b189e..b8da86f1a8d 100644 --- a/compiler/rustc_mir_transform/src/unreachable_prop.rs +++ b/compiler/rustc_mir_transform/src/unreachable_prop.rs @@ -12,7 +12,7 @@ use rustc_target::abi::Size; pub struct UnreachablePropagation; -impl MirPass<'_> for UnreachablePropagation { +impl crate::MirPass<'_> for UnreachablePropagation { fn is_enabled(&self, sess: &rustc_session::Session) -> bool { // Enable only under -Zmir-opt-level=2 as this can make programs less debuggable. sess.mir_opt_level() >= 2 diff --git a/compiler/rustc_mir_transform/src/validate.rs b/compiler/rustc_mir_transform/src/validate.rs index 99e06f59dd0..69e2592e82c 100644 --- a/compiler/rustc_mir_transform/src/validate.rs +++ b/compiler/rustc_mir_transform/src/validate.rs @@ -36,7 +36,7 @@ pub struct Validator { pub mir_phase: MirPhase, } -impl<'tcx> MirPass<'tcx> for Validator { +impl<'tcx> crate::MirPass<'tcx> for Validator { fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) { // FIXME(JakobDegen): These bodies never instantiated in codegend anyway, so it's not // terribly important that they pass the validator. However, I think other passes might diff --git a/compiler/rustc_next_trait_solver/src/solve/assembly/mod.rs b/compiler/rustc_next_trait_solver/src/solve/assembly/mod.rs index bb05eb4c256..6c9a6011144 100644 --- a/compiler/rustc_next_trait_solver/src/solve/assembly/mod.rs +++ b/compiler/rustc_next_trait_solver/src/solve/assembly/mod.rs @@ -304,6 +304,11 @@ where let mut candidates = vec![]; + if self.solver_mode() == SolverMode::Coherence { + if let Ok(candidate) = self.consider_coherence_unknowable_candidate(goal) { + return vec![candidate]; + } + } self.assemble_impl_candidates(goal, &mut candidates); self.assemble_builtin_impl_candidates(goal, &mut candidates); @@ -314,11 +319,8 @@ where self.assemble_param_env_candidates(goal, &mut candidates); - match self.solver_mode() { - SolverMode::Normal => self.discard_impls_shadowed_by_env(goal, &mut candidates), - SolverMode::Coherence => { - self.assemble_coherence_unknowable_candidates(goal, &mut candidates) - } + if self.solver_mode() == SolverMode::Normal { + self.discard_impls_shadowed_by_env(goal, &mut candidates); } candidates @@ -682,38 +684,34 @@ where /// also consider impls which may get added in a downstream or sibling crate /// or which an upstream impl may add in a minor release. /// - /// To do so we add an ambiguous candidate in case such an unknown impl could - /// apply to the current goal. + /// To do so we return a single ambiguous candidate in case such an unknown + /// impl could apply to the current goal. #[instrument(level = "trace", skip_all)] - fn assemble_coherence_unknowable_candidates<G: GoalKind<D>>( + fn consider_coherence_unknowable_candidate<G: GoalKind<D>>( &mut self, goal: Goal<I, G>, - candidates: &mut Vec<Candidate<I>>, - ) { - let cx = self.cx(); - - candidates.extend(self.probe_trait_candidate(CandidateSource::CoherenceUnknowable).enter( - |ecx| { - let trait_ref = goal.predicate.trait_ref(cx); - if ecx.trait_ref_is_knowable(goal.param_env, trait_ref)? { - Err(NoSolution) - } else { - // While the trait bound itself may be unknowable, we may be able to - // prove that a super trait is not implemented. For this, we recursively - // prove the super trait bounds of the current goal. - // - // We skip the goal itself as that one would cycle. - let predicate: I::Predicate = trait_ref.upcast(cx); - ecx.add_goals( - GoalSource::Misc, - elaborate::elaborate(cx, [predicate]) - .skip(1) - .map(|predicate| goal.with(cx, predicate)), - ); - ecx.evaluate_added_goals_and_make_canonical_response(Certainty::AMBIGUOUS) - } - }, - )) + ) -> Result<Candidate<I>, NoSolution> { + self.probe_trait_candidate(CandidateSource::CoherenceUnknowable).enter(|ecx| { + let cx = ecx.cx(); + let trait_ref = goal.predicate.trait_ref(cx); + if ecx.trait_ref_is_knowable(goal.param_env, trait_ref)? { + Err(NoSolution) + } else { + // While the trait bound itself may be unknowable, we may be able to + // prove that a super trait is not implemented. For this, we recursively + // prove the super trait bounds of the current goal. + // + // We skip the goal itself as that one would cycle. + let predicate: I::Predicate = trait_ref.upcast(cx); + ecx.add_goals( + GoalSource::Misc, + elaborate::elaborate(cx, [predicate]) + .skip(1) + .map(|predicate| goal.with(cx, predicate)), + ); + ecx.evaluate_added_goals_and_make_canonical_response(Certainty::AMBIGUOUS) + } + }) } /// If there's a where-bound for the current goal, do not use any impl candidates diff --git a/compiler/rustc_passes/src/loops.rs b/compiler/rustc_passes/src/loops.rs index 25115c5cafd..c11562ae39e 100644 --- a/compiler/rustc_passes/src/loops.rs +++ b/compiler/rustc_passes/src/loops.rs @@ -19,17 +19,25 @@ use crate::errors::{ OutsideLoopSuggestion, UnlabeledCfInWhileCondition, UnlabeledInLabeledBlock, }; +/// The context in which a block is encountered. #[derive(Clone, Copy, Debug, PartialEq)] enum Context { Normal, Fn, Loop(hir::LoopSource), Closure(Span), - Coroutine { coroutine_span: Span, kind: hir::CoroutineDesugaring, source: hir::CoroutineSource }, + Coroutine { + coroutine_span: Span, + kind: hir::CoroutineDesugaring, + source: hir::CoroutineSource, + }, UnlabeledBlock(Span), UnlabeledIfBlock(Span), LabeledBlock, - Constant, + /// E.g. The labeled block inside `['_'; 'block: { break 'block 1 + 2; }]`. + AnonConst, + /// E.g. `const { ... }`. + ConstBlock, } #[derive(Clone)] @@ -90,11 +98,11 @@ impl<'a, 'hir> Visitor<'hir> for CheckLoopVisitor<'a, 'hir> { } fn visit_anon_const(&mut self, c: &'hir hir::AnonConst) { - self.with_context(Constant, |v| intravisit::walk_anon_const(v, c)); + self.with_context(AnonConst, |v| intravisit::walk_anon_const(v, c)); } fn visit_inline_const(&mut self, c: &'hir hir::ConstBlock) { - self.with_context(Constant, |v| intravisit::walk_inline_const(v, c)); + self.with_context(ConstBlock, |v| intravisit::walk_inline_const(v, c)); } fn visit_fn( @@ -128,7 +136,7 @@ impl<'a, 'hir> Visitor<'hir> for CheckLoopVisitor<'a, 'hir> { && matches!( ck_loop.cx_stack.last(), Some(&Normal) - | Some(&Constant) + | Some(&AnonConst) | Some(&UnlabeledBlock(_)) | Some(&UnlabeledIfBlock(_)) ) @@ -175,14 +183,18 @@ impl<'a, 'hir> Visitor<'hir> for CheckLoopVisitor<'a, 'hir> { hir::ExprKind::Block(ref b, Some(_label)) => { self.with_context(LabeledBlock, |v| v.visit_block(b)); } - hir::ExprKind::Block(ref b, None) if matches!(self.cx_stack.last(), Some(&Fn)) => { + hir::ExprKind::Block(ref b, None) + if matches!(self.cx_stack.last(), Some(&Fn) | Some(&ConstBlock)) => + { self.with_context(Normal, |v| v.visit_block(b)); } - hir::ExprKind::Block(ref b, None) - if matches!( - self.cx_stack.last(), - Some(&Normal) | Some(&Constant) | Some(&UnlabeledBlock(_)) - ) => + hir::ExprKind::Block( + ref b @ hir::Block { rules: hir::BlockCheckMode::DefaultBlock, .. }, + None, + ) if matches!( + self.cx_stack.last(), + Some(&Normal) | Some(&AnonConst) | Some(&UnlabeledBlock(_)) + ) => { self.with_context(UnlabeledBlock(b.span.shrink_to_lo()), |v| v.visit_block(b)); } @@ -353,7 +365,7 @@ impl<'a, 'hir> CheckLoopVisitor<'a, 'hir> { UnlabeledIfBlock(_) if br_cx_kind == BreakContextKind::Break => { self.require_break_cx(br_cx_kind, span, break_span, cx_pos - 1); } - Normal | Constant | Fn | UnlabeledBlock(_) | UnlabeledIfBlock(_) => { + Normal | AnonConst | Fn | UnlabeledBlock(_) | UnlabeledIfBlock(_) | ConstBlock => { self.sess.dcx().emit_err(OutsideLoop { spans: vec![span], name: &br_cx_kind.to_string(), @@ -365,7 +377,7 @@ impl<'a, 'hir> CheckLoopVisitor<'a, 'hir> { } fn require_label_in_labeled_block( - &mut self, + &self, span: Span, label: &Destination, cf_type: &str, @@ -380,7 +392,7 @@ impl<'a, 'hir> CheckLoopVisitor<'a, 'hir> { false } - fn report_outside_loop_error(&mut self) { + fn report_outside_loop_error(&self) { for (s, block) in &self.block_breaks { self.sess.dcx().emit_err(OutsideLoop { spans: block.spans.clone(), diff --git a/compiler/rustc_pattern_analysis/src/rustc.rs b/compiler/rustc_pattern_analysis/src/rustc.rs index d7885e05a2f..6c09f97bfe7 100644 --- a/compiler/rustc_pattern_analysis/src/rustc.rs +++ b/compiler/rustc_pattern_analysis/src/rustc.rs @@ -229,17 +229,11 @@ impl<'p, 'tcx: 'p> RustcPatCtxt<'p, 'tcx> { } else { let variant = &adt.variant(RustcPatCtxt::variant_index_for_adt(&ctor, *adt)); - - // In the cases of either a `#[non_exhaustive]` field list or a non-public - // field, we skip uninhabited fields in order not to reveal the - // uninhabitedness of the whole variant. - let is_non_exhaustive = - variant.is_field_list_non_exhaustive() && !adt.did().is_local(); let tys = cx.variant_sub_tys(ty, variant).map(|(field, ty)| { let is_visible = adt.is_enum() || field.vis.is_accessible_from(cx.module, cx.tcx); let is_uninhabited = cx.is_uninhabited(*ty); - let skip = is_uninhabited && (!is_visible || is_non_exhaustive); + let skip = is_uninhabited && !is_visible; (ty, PrivateUninhabitedField(skip)) }); cx.dropless_arena.alloc_from_iter(tys) diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index 34765209605..36b31d10c4d 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -407,6 +407,7 @@ symbols! { append_const_msg, arbitrary_enum_discriminant, arbitrary_self_types, + arbitrary_self_types_pointers, args, arith_offset, arm, diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index f992ddf8417..6abd8a0d6b7 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -1695,6 +1695,8 @@ supported_targets! { ("armv7r-none-eabihf", armv7r_none_eabihf), ("armv8r-none-eabihf", armv8r_none_eabihf), + ("armv7-rtems-eabihf", armv7_rtems_eabihf), + ("x86_64-pc-solaris", x86_64_pc_solaris), ("sparcv9-sun-solaris", sparcv9_sun_solaris), @@ -2097,9 +2099,10 @@ pub struct TargetOptions { /// Default CPU to pass to LLVM. Corresponds to `llc -mcpu=$cpu`. Defaults /// to "generic". pub cpu: StaticCow<str>, - /// Default target features to pass to LLVM. These features will *always* be - /// passed, and cannot be disabled even via `-C`. Corresponds to `llc - /// -mattr=$features`. + /// Default target features to pass to LLVM. These features overwrite + /// `-Ctarget-cpu` but can be overwritten with `-Ctarget-features`. + /// Corresponds to `llc -mattr=$features`. + /// Note that these are LLVM feature names, not Rust feature names! pub features: StaticCow<str>, /// Direct or use GOT indirect to reference external data symbols pub direct_access_external_data: Option<bool>, diff --git a/compiler/rustc_target/src/spec/targets/armv7_rtems_eabihf.rs b/compiler/rustc_target/src/spec/targets/armv7_rtems_eabihf.rs new file mode 100644 index 00000000000..1edecac095f --- /dev/null +++ b/compiler/rustc_target/src/spec/targets/armv7_rtems_eabihf.rs @@ -0,0 +1,35 @@ +use crate::spec::{cvs, Cc, LinkerFlavor, Lld, PanicStrategy, RelocModel, Target, TargetOptions}; + +pub(crate) fn target() -> Target { + Target { + llvm_target: "armv7-unknown-none-eabihf".into(), + metadata: crate::spec::TargetMetadata { + description: Some("Armv7 RTEMS (Requires RTEMS toolchain and kernel".into()), + tier: Some(3), + host_tools: Some(false), + std: Some(true), + }, + pointer_width: 32, + data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), + arch: "arm".into(), + + options: TargetOptions { + os: "rtems".into(), + families: cvs!["unix"], + abi: "eabihf".into(), + linker_flavor: LinkerFlavor::Gnu(Cc::Yes, Lld::No), + linker: None, + relocation_model: RelocModel::Static, + panic_strategy: PanicStrategy::Abort, + features: "+thumb2,+neon,+vfp3".into(), + max_atomic_width: Some(64), + emit_debug_gdb_scripts: false, + // GCC defaults to 8 for arm-none here. + c_enum_min_bits: Some(8), + eh_frame_header: false, + no_default_libraries: false, + env: "newlib".into(), + ..Default::default() + }, + } +} 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 5c663e0bf4b..45e157b1080 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs @@ -5023,24 +5023,32 @@ impl<'v> Visitor<'v> for AwaitsVisitor { } } +/// Suggest a new type parameter name for diagnostic purposes. +/// +/// `name` is the preferred name you'd like to suggest if it's not in use already. pub trait NextTypeParamName { fn next_type_param_name(&self, name: Option<&str>) -> String; } impl NextTypeParamName for &[hir::GenericParam<'_>] { fn next_type_param_name(&self, name: Option<&str>) -> String { - // This is the list of possible parameter names that we might suggest. + // Type names are usually single letters in uppercase. So convert the first letter of input string to uppercase. let name = name.and_then(|n| n.chars().next()).map(|c| c.to_uppercase().to_string()); let name = name.as_deref(); + + // This is the list of possible parameter names that we might suggest. let possible_names = [name.unwrap_or("T"), "T", "U", "V", "X", "Y", "Z", "A", "B", "C"]; - let used_names = self + + // Filter out used names based on `filter_fn`. + let used_names: Vec<Symbol> = self .iter() - .filter_map(|p| match p.name { + .filter_map(|param| match param.name { hir::ParamName::Plain(ident) => Some(ident.name), _ => None, }) - .collect::<Vec<_>>(); + .collect(); + // Find a name from `possible_names` that is not in `used_names`. possible_names .iter() .find(|n| !used_names.contains(&Symbol::intern(n))) diff --git a/compiler/rustc_trait_selection/src/traits/coherence.rs b/compiler/rustc_trait_selection/src/traits/coherence.rs index 8558520897b..8b55f84bccc 100644 --- a/compiler/rustc_trait_selection/src/traits/coherence.rs +++ b/compiler/rustc_trait_selection/src/traits/coherence.rs @@ -29,6 +29,7 @@ use crate::infer::outlives::env::OutlivesEnvironment; use crate::infer::InferOk; use crate::solve::inspect::{InspectGoal, ProofTreeInferCtxtExt, ProofTreeVisitor}; use crate::solve::{deeply_normalize_for_diagnostics, inspect}; +use crate::traits::query::evaluate_obligation::InferCtxtExt; use crate::traits::select::IntercrateAmbiguityCause; use crate::traits::{ util, FulfillmentErrorCode, NormalizeExt, Obligation, ObligationCause, PredicateObligation, @@ -624,14 +625,13 @@ impl<'a, 'tcx> ProofTreeVisitor<'tcx> for AmbiguityCausesVisitor<'a, 'tcx> { // at ambiguous goals, as for others the coherence unknowable candidate // was irrelevant. match goal.result() { - Ok(Certainty::Maybe(_)) => {} Ok(Certainty::Yes) | Err(NoSolution) => return, + Ok(Certainty::Maybe(_)) => {} } - let Goal { param_env, predicate } = goal.goal(); - // For bound predicates we simply call `infcx.enter_forall` // and then prove the resulting predicate as a nested goal. + let Goal { param_env, predicate } = goal.goal(); let trait_ref = match predicate.kind().no_bound_vars() { Some(ty::PredicateKind::Clause(ty::ClauseKind::Trait(tr))) => tr.trait_ref, Some(ty::PredicateKind::Clause(ty::ClauseKind::Projection(proj))) @@ -645,7 +645,11 @@ impl<'a, 'tcx> ProofTreeVisitor<'tcx> for AmbiguityCausesVisitor<'a, 'tcx> { _ => return, }; - // Add ambiguity causes for reservation impls. + if trait_ref.references_error() { + return; + } + + let mut candidates = goal.candidates(); for cand in goal.candidates() { if let inspect::ProbeKind::TraitCandidate { source: CandidateSource::Impl(def_id), @@ -664,78 +668,68 @@ impl<'a, 'tcx> ProofTreeVisitor<'tcx> for AmbiguityCausesVisitor<'a, 'tcx> { } } - // Add ambiguity causes for unknowable goals. - let mut ambiguity_cause = None; - for cand in goal.candidates() { - if let inspect::ProbeKind::TraitCandidate { - source: CandidateSource::CoherenceUnknowable, - result: Ok(_), - } = cand.kind() - { - let lazily_normalize_ty = |mut ty: Ty<'tcx>| { - if matches!(ty.kind(), ty::Alias(..)) { - let ocx = ObligationCtxt::new(infcx); - ty = ocx - .structurally_normalize(&ObligationCause::dummy(), param_env, ty) - .map_err(|_| ())?; - if !ocx.select_where_possible().is_empty() { - return Err(()); - } - } - Ok(ty) - }; + // We also look for unknowable candidates. In case a goal is unknowable, there's + // always exactly 1 candidate. + let Some(cand) = candidates.pop() else { + return; + }; - infcx.probe(|_| { - match trait_ref_is_knowable(infcx, trait_ref, lazily_normalize_ty) { - Err(()) => {} - Ok(Ok(())) => warn!("expected an unknowable trait ref: {trait_ref:?}"), - Ok(Err(conflict)) => { - if !trait_ref.references_error() { - // Normalize the trait ref for diagnostics, ignoring any errors if this fails. - let trait_ref = - deeply_normalize_for_diagnostics(infcx, param_env, trait_ref); - - let self_ty = trait_ref.self_ty(); - let self_ty = self_ty.has_concrete_skeleton().then(|| self_ty); - ambiguity_cause = Some(match conflict { - Conflict::Upstream => { - IntercrateAmbiguityCause::UpstreamCrateUpdate { - trait_ref, - self_ty, - } - } - Conflict::Downstream => { - IntercrateAmbiguityCause::DownstreamCrate { - trait_ref, - self_ty, - } - } - }); - } - } - } - }) - } else { - match cand.result() { - // We only add an ambiguity cause if the goal would otherwise - // result in an error. - // - // FIXME: While this matches the behavior of the - // old solver, it is not the only way in which the unknowable - // candidates *weaken* coherence, they can also force otherwise - // successful normalization to be ambiguous. - Ok(Certainty::Maybe(_) | Certainty::Yes) => { - ambiguity_cause = None; - break; - } - Err(NoSolution) => continue, + let inspect::ProbeKind::TraitCandidate { + source: CandidateSource::CoherenceUnknowable, + result: Ok(_), + } = cand.kind() + else { + return; + }; + + let lazily_normalize_ty = |mut ty: Ty<'tcx>| { + if matches!(ty.kind(), ty::Alias(..)) { + let ocx = ObligationCtxt::new(infcx); + ty = ocx + .structurally_normalize(&ObligationCause::dummy(), param_env, ty) + .map_err(|_| ())?; + if !ocx.select_where_possible().is_empty() { + return Err(()); } } - } + Ok(ty) + }; - if let Some(ambiguity_cause) = ambiguity_cause { - self.causes.insert(ambiguity_cause); - } + infcx.probe(|_| { + let conflict = match trait_ref_is_knowable(infcx, trait_ref, lazily_normalize_ty) { + Err(()) => return, + Ok(Ok(())) => { + warn!("expected an unknowable trait ref: {trait_ref:?}"); + return; + } + Ok(Err(conflict)) => conflict, + }; + + // It is only relevant that a goal is unknowable if it would have otherwise + // failed. + let non_intercrate_infcx = infcx.fork_with_intercrate(false); + if non_intercrate_infcx.predicate_may_hold(&Obligation::new( + infcx.tcx, + ObligationCause::dummy(), + param_env, + predicate, + )) { + return; + } + + // Normalize the trait ref for diagnostics, ignoring any errors if this fails. + let trait_ref = deeply_normalize_for_diagnostics(infcx, param_env, trait_ref); + let self_ty = trait_ref.self_ty(); + let self_ty = self_ty.has_concrete_skeleton().then(|| self_ty); + self.causes.insert(match conflict { + Conflict::Upstream => { + IntercrateAmbiguityCause::UpstreamCrateUpdate { trait_ref, self_ty } + } + Conflict::Downstream => { + IntercrateAmbiguityCause::DownstreamCrate { trait_ref, self_ty } + } + }); + }); } } diff --git a/compiler/rustc_type_ir/src/solve/mod.rs b/compiler/rustc_type_ir/src/solve/mod.rs index 96c939a898b..96998d2ec9f 100644 --- a/compiler/rustc_type_ir/src/solve/mod.rs +++ b/compiler/rustc_type_ir/src/solve/mod.rs @@ -58,7 +58,7 @@ pub enum Reveal { All, } -#[derive(Debug, Clone, Copy)] +#[derive(Debug, Clone, Copy, PartialEq, Eq)] pub enum SolverMode { /// Ordinary trait solving, using everywhere except for coherence. Normal, diff --git a/config.example.toml b/config.example.toml index b967d5d9fe8..13f76933b16 100644 --- a/config.example.toml +++ b/config.example.toml @@ -519,6 +519,9 @@ # are disabled statically" because `max_level_info` is enabled, set this value to `true`. #debug-logging = rust.debug-assertions (boolean) +# Whether or not to build rustc, tools and the libraries with randomized type layout +#randomize-layout = false + # Whether or not overflow checks are enabled for the compiler and standard # library. # diff --git a/library/alloc/Cargo.toml b/library/alloc/Cargo.toml index 4365bcc4ad0..1bd4434d4f7 100644 --- a/library/alloc/Cargo.toml +++ b/library/alloc/Cargo.toml @@ -52,4 +52,5 @@ check-cfg = [ 'cfg(no_global_oom_handling)', 'cfg(no_rc)', 'cfg(no_sync)', + 'cfg(randomized_layouts)', ] diff --git a/library/alloc/src/collections/btree/node/tests.rs b/library/alloc/src/collections/btree/node/tests.rs index d230749d712..4d2fa0f0941 100644 --- a/library/alloc/src/collections/btree/node/tests.rs +++ b/library/alloc/src/collections/btree/node/tests.rs @@ -90,7 +90,7 @@ fn test_partial_eq() { #[test] #[cfg(target_arch = "x86_64")] -#[cfg_attr(miri, ignore)] // We'd like to run Miri with layout randomization +#[cfg_attr(any(miri, randomized_layouts), ignore)] // We'd like to run Miri with layout randomization fn test_sizes() { assert_eq!(core::mem::size_of::<LeafNode<(), ()>>(), 16); assert_eq!(core::mem::size_of::<LeafNode<i64, i64>>(), 16 + CAPACITY * 2 * 8); diff --git a/library/core/Cargo.toml b/library/core/Cargo.toml index cace4582b48..94f343d0670 100644 --- a/library/core/Cargo.toml +++ b/library/core/Cargo.toml @@ -43,6 +43,8 @@ check-cfg = [ 'cfg(bootstrap)', 'cfg(no_fp_fmt_parse)', 'cfg(stdarch_intel_sde)', + # #[cfg(bootstrap)] rtems + 'cfg(target_os, values("rtems"))', # core use #[path] imports to portable-simd `core_simd` crate # and to stdarch `core_arch` crate which messes-up with Cargo list # of declared features, we therefor expect any feature cfg diff --git a/library/core/src/ffi/mod.rs b/library/core/src/ffi/mod.rs index ec1f9052a15..dc107c5d22c 100644 --- a/library/core/src/ffi/mod.rs +++ b/library/core/src/ffi/mod.rs @@ -110,7 +110,7 @@ mod c_char_definition { all(target_os = "android", any(target_arch = "aarch64", target_arch = "arm")), all(target_os = "l4re", target_arch = "x86_64"), all( - any(target_os = "freebsd", target_os = "openbsd"), + any(target_os = "freebsd", target_os = "openbsd", target_os = "rtems"), any( target_arch = "aarch64", target_arch = "arm", diff --git a/library/core/src/task/wake.rs b/library/core/src/task/wake.rs index 7e5c1574f53..6924b3c13ec 100644 --- a/library/core/src/task/wake.rs +++ b/library/core/src/task/wake.rs @@ -60,22 +60,6 @@ impl RawWaker { RawWaker { data, vtable } } - /// Gets the `data` pointer used to create this `RawWaker`. - #[inline] - #[must_use] - #[unstable(feature = "waker_getters", issue = "96992")] - pub fn data(&self) -> *const () { - self.data - } - - /// Gets the `vtable` pointer used to create this `RawWaker`. - #[inline] - #[must_use] - #[unstable(feature = "waker_getters", issue = "96992")] - pub fn vtable(&self) -> &'static RawWakerVTable { - self.vtable - } - #[unstable(feature = "noop_waker", issue = "98286")] const NOOP: RawWaker = { const VTABLE: RawWakerVTable = RawWakerVTable::new( @@ -509,6 +493,37 @@ impl Waker { a_data == b_data && ptr::eq(a_vtable, b_vtable) } + /// Creates a new `Waker` from the provided `data` pointer and `vtable`. + /// + /// The `data` pointer can be used to store arbitrary data as required + /// by the executor. This could be e.g. a type-erased pointer to an `Arc` + /// that is associated with the task. + /// The value of this pointer will get passed to all functions that are part + /// of the `vtable` as the first parameter. + /// + /// It is important to consider that the `data` pointer must point to a + /// thread safe type such as an `Arc`. + /// + /// The `vtable` customizes the behavior of a `Waker`. For each operation + /// on the `Waker`, the associated function in the `vtable` will be called. + /// + /// # Safety + /// + /// The behavior of the returned `Waker` is undefined if the contract defined + /// in [`RawWakerVTable`]'s documentation is not upheld. + /// + /// (Authors wishing to avoid unsafe code may implement the [`Wake`] trait instead, at the + /// cost of a required heap allocation.) + /// + /// [`Wake`]: ../../alloc/task/trait.Wake.html + #[inline] + #[must_use] + #[stable(feature = "waker_getters", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "waker_getters", since = "CURRENT_RUSTC_VERSION")] + pub const unsafe fn new(data: *const (), vtable: &'static RawWakerVTable) -> Self { + Waker { waker: RawWaker { data, vtable } } + } + /// Creates a new `Waker` from [`RawWaker`]. /// /// # Safety @@ -565,12 +580,20 @@ impl Waker { WAKER } - /// Gets a reference to the underlying [`RawWaker`]. + /// Gets the `data` pointer used to create this `Waker`. #[inline] #[must_use] - #[unstable(feature = "waker_getters", issue = "96992")] - pub fn as_raw(&self) -> &RawWaker { - &self.waker + #[stable(feature = "waker_getters", since = "CURRENT_RUSTC_VERSION")] + pub fn data(&self) -> *const () { + self.waker.data + } + + /// Gets the `vtable` pointer used to create this `Waker`. + #[inline] + #[must_use] + #[stable(feature = "waker_getters", since = "CURRENT_RUSTC_VERSION")] + pub fn vtable(&self) -> &'static RawWakerVTable { + self.waker.vtable } } @@ -778,6 +801,30 @@ impl LocalWaker { a_data == b_data && ptr::eq(a_vtable, b_vtable) } + /// Creates a new `LocalWaker` from the provided `data` pointer and `vtable`. + /// + /// The `data` pointer can be used to store arbitrary data as required + /// by the executor. This could be e.g. a type-erased pointer to an `Arc` + /// that is associated with the task. + /// The value of this pointer will get passed to all functions that are part + /// of the `vtable` as the first parameter. + /// + /// The `vtable` customizes the behavior of a `LocalWaker`. For each + /// operation on the `LocalWaker`, the associated function in the `vtable` + /// will be called. + /// + /// # Safety + /// + /// The behavior of the returned `Waker` is undefined if the contract defined + /// in [`RawWakerVTable`]'s documentation is not upheld. + /// + #[inline] + #[must_use] + #[unstable(feature = "local_waker", issue = "118959")] + pub const unsafe fn new(data: *const (), vtable: &'static RawWakerVTable) -> Self { + LocalWaker { waker: RawWaker { data, vtable } } + } + /// Creates a new `LocalWaker` from [`RawWaker`]. /// /// The behavior of the returned `LocalWaker` is undefined if the contract defined @@ -831,12 +878,20 @@ impl LocalWaker { WAKER } - /// Gets a reference to the underlying [`RawWaker`]. + /// Gets the `data` pointer used to create this `LocalWaker`. #[inline] #[must_use] - #[unstable(feature = "waker_getters", issue = "96992")] - pub fn as_raw(&self) -> &RawWaker { - &self.waker + #[unstable(feature = "local_waker", issue = "118959")] + pub fn data(&self) -> *const () { + self.waker.data + } + + /// Gets the `vtable` pointer used to create this `LocalWaker`. + #[inline] + #[must_use] + #[unstable(feature = "local_waker", issue = "118959")] + pub fn vtable(&self) -> &'static RawWakerVTable { + self.waker.vtable } } #[unstable(feature = "local_waker", issue = "118959")] diff --git a/library/core/tests/lib.rs b/library/core/tests/lib.rs index c205f028dd3..96fc621494f 100644 --- a/library/core/tests/lib.rs +++ b/library/core/tests/lib.rs @@ -112,7 +112,6 @@ #![feature(unsize)] #![feature(unsized_tuple_coercion)] #![feature(unwrap_infallible)] -#![feature(waker_getters)] // tidy-alphabetical-end #![allow(internal_features)] #![deny(fuzzy_provenance_casts)] diff --git a/library/core/tests/waker.rs b/library/core/tests/waker.rs index 361e900e695..8f6bf0565fc 100644 --- a/library/core/tests/waker.rs +++ b/library/core/tests/waker.rs @@ -4,14 +4,13 @@ use std::task::{RawWaker, RawWakerVTable, Waker}; #[test] fn test_waker_getters() { let raw_waker = RawWaker::new(ptr::without_provenance_mut(42usize), &WAKER_VTABLE); - assert_eq!(raw_waker.data() as usize, 42); - assert!(ptr::eq(raw_waker.vtable(), &WAKER_VTABLE)); - let waker = unsafe { Waker::from_raw(raw_waker) }; + assert_eq!(waker.data() as usize, 42); + assert!(ptr::eq(waker.vtable(), &WAKER_VTABLE)); + let waker2 = waker.clone(); - let raw_waker2 = waker2.as_raw(); - assert_eq!(raw_waker2.data() as usize, 43); - assert!(ptr::eq(raw_waker2.vtable(), &WAKER_VTABLE)); + assert_eq!(waker2.data() as usize, 43); + assert!(ptr::eq(waker2.vtable(), &WAKER_VTABLE)); } static WAKER_VTABLE: RawWakerVTable = RawWakerVTable::new( diff --git a/library/panic_unwind/Cargo.toml b/library/panic_unwind/Cargo.toml index f830808d196..6d1f9764efb 100644 --- a/library/panic_unwind/Cargo.toml +++ b/library/panic_unwind/Cargo.toml @@ -20,3 +20,10 @@ cfg-if = { version = "1.0", features = ['rustc-dep-of-std'] } [target.'cfg(not(all(windows, target_env = "msvc")))'.dependencies] libc = { version = "0.2", default-features = false } + +[lints.rust.unexpected_cfgs] +level = "warn" +check-cfg = [ + # #[cfg(bootstrap)] rtems + 'cfg(target_os, values("rtems"))', +] diff --git a/library/panic_unwind/src/lib.rs b/library/panic_unwind/src/lib.rs index 2d174f4b1a4..4552fb68d26 100644 --- a/library/panic_unwind/src/lib.rs +++ b/library/panic_unwind/src/lib.rs @@ -48,7 +48,7 @@ cfg_if::cfg_if! { target_os = "psp", target_os = "xous", target_os = "solid_asp3", - all(target_family = "unix", not(target_os = "espidf")), + all(target_family = "unix", not(any(target_os = "espidf", target_os = "rtems"))), all(target_vendor = "fortanix", target_env = "sgx"), target_family = "wasm", ))] { diff --git a/library/std/Cargo.toml b/library/std/Cargo.toml index 82cfd603a21..e20fe9feff1 100644 --- a/library/std/Cargo.toml +++ b/library/std/Cargo.toml @@ -146,4 +146,6 @@ check-cfg = [ # and to the `backtrace` crate which messes-up with Cargo list # of declared features, we therefor expect any feature cfg 'cfg(feature, values(any()))', + # #[cfg(bootstrap)] rtems + 'cfg(target_os, values("rtems"))', ] diff --git a/library/std/build.rs b/library/std/build.rs index 72254cafc85..ba1eece46f3 100644 --- a/library/std/build.rs +++ b/library/std/build.rs @@ -53,6 +53,7 @@ fn main() { || target_os == "uefi" || target_os == "teeos" || target_os == "zkvm" + || target_os == "rtems" // See src/bootstrap/src/core/build_steps/synthetic_targets.rs || env::var("RUSTC_BOOTSTRAP_SYNTHETIC_TARGET").is_ok() diff --git a/library/std/src/os/mod.rs b/library/std/src/os/mod.rs index 020a8b324f4..a2496baa63f 100644 --- a/library/std/src/os/mod.rs +++ b/library/std/src/os/mod.rs @@ -143,6 +143,8 @@ pub mod nto; pub mod openbsd; #[cfg(target_os = "redox")] pub mod redox; +#[cfg(target_os = "rtems")] +pub mod rtems; #[cfg(target_os = "solaris")] pub mod solaris; #[cfg(target_os = "solid_asp3")] diff --git a/library/std/src/os/rtems/fs.rs b/library/std/src/os/rtems/fs.rs new file mode 100644 index 00000000000..bec0d41e42d --- /dev/null +++ b/library/std/src/os/rtems/fs.rs @@ -0,0 +1,374 @@ +#![stable(feature = "metadata_ext", since = "1.1.0")] + +use crate::fs::Metadata; +use crate::sys_common::AsInner; + +/// OS-specific extensions to [`fs::Metadata`]. +/// +/// [`fs::Metadata`]: crate::fs::Metadata +#[stable(feature = "metadata_ext", since = "1.1.0")] +pub trait MetadataExt { + /// Returns the device ID on which this file resides. + /// + /// # Examples + /// + /// ```no_run + /// use std::fs; + /// use std::io; + /// use std::os::rtems::fs::MetadataExt; + /// + /// fn main() -> io::Result<()> { + /// let meta = fs::metadata("some_file")?; + /// println!("{}", meta.st_dev()); + /// Ok(()) + /// } + /// ``` + #[stable(feature = "metadata_ext2", since = "1.8.0")] + fn st_dev(&self) -> u64; + + /// Returns the inode number. + /// + /// # Examples + /// + /// ```no_run + /// use std::fs; + /// use std::io; + /// use std::os::rtems::fs::MetadataExt; + /// + /// fn main() -> io::Result<()> { + /// let meta = fs::metadata("some_file")?; + /// println!("{}", meta.st_ino()); + /// Ok(()) + /// } + /// ``` + #[stable(feature = "metadata_ext2", since = "1.8.0")] + fn st_ino(&self) -> u64; + + /// Returns the file type and mode. + /// + /// # Examples + /// + /// ```no_run + /// use std::fs; + /// use std::io; + /// use std::os::rtems::fs::MetadataExt; + /// + /// fn main() -> io::Result<()> { + /// let meta = fs::metadata("some_file")?; + /// println!("{}", meta.st_mode()); + /// Ok(()) + /// } + /// ``` + #[stable(feature = "metadata_ext2", since = "1.8.0")] + fn st_mode(&self) -> u32; + + /// Returns the number of hard links to file. + /// + /// # Examples + /// + /// ```no_run + /// use std::fs; + /// use std::io; + /// use std::os::rtems::fs::MetadataExt; + /// + /// fn main() -> io::Result<()> { + /// let meta = fs::metadata("some_file")?; + /// println!("{}", meta.st_nlink()); + /// Ok(()) + /// } + /// ``` + #[stable(feature = "metadata_ext2", since = "1.8.0")] + fn st_nlink(&self) -> u64; + + /// Returns the user ID of the file owner. + /// + /// # Examples + /// + /// ```no_run + /// use std::fs; + /// use std::io; + /// use std::os::rtems::fs::MetadataExt; + /// + /// fn main() -> io::Result<()> { + /// let meta = fs::metadata("some_file")?; + /// println!("{}", meta.st_uid()); + /// Ok(()) + /// } + /// ``` + #[stable(feature = "metadata_ext2", since = "1.8.0")] + fn st_uid(&self) -> u32; + + /// Returns the group ID of the file owner. + /// + /// # Examples + /// + /// ```no_run + /// use std::fs; + /// use std::io; + /// use std::os::rtems::fs::MetadataExt; + /// + /// fn main() -> io::Result<()> { + /// let meta = fs::metadata("some_file")?; + /// println!("{}", meta.st_gid()); + /// Ok(()) + /// } + /// ``` + #[stable(feature = "metadata_ext2", since = "1.8.0")] + fn st_gid(&self) -> u32; + + /// Returns the device ID that this file represents. Only relevant for special file. + /// + /// # Examples + /// + /// ```no_run + /// use std::fs; + /// use std::io; + /// use std::os::rtems::fs::MetadataExt; + /// + /// fn main() -> io::Result<()> { + /// let meta = fs::metadata("some_file")?; + /// println!("{}", meta.st_rdev()); + /// Ok(()) + /// } + /// ``` + #[stable(feature = "metadata_ext2", since = "1.8.0")] + fn st_rdev(&self) -> u64; + + /// Returns the size of the file (if it is a regular file or a symbolic link) in bytes. + /// + /// The size of a symbolic link is the length of the pathname it contains, + /// without a terminating null byte. + /// + /// # Examples + /// + /// ```no_run + /// use std::fs; + /// use std::io; + /// use std::os::rtems::fs::MetadataExt; + /// + /// fn main() -> io::Result<()> { + /// let meta = fs::metadata("some_file")?; + /// println!("{}", meta.st_size()); + /// Ok(()) + /// } + /// ``` + #[stable(feature = "metadata_ext2", since = "1.8.0")] + fn st_size(&self) -> u64; + + /// Returns the last access time of the file, in seconds since Unix Epoch. + /// + /// # Examples + /// + /// ```no_run + /// use std::fs; + /// use std::io; + /// use std::os::rtems::fs::MetadataExt; + /// + /// fn main() -> io::Result<()> { + /// let meta = fs::metadata("some_file")?; + /// println!("{}", meta.st_atime()); + /// Ok(()) + /// } + /// ``` + #[stable(feature = "metadata_ext2", since = "1.8.0")] + fn st_atime(&self) -> i64; + + /// Returns the last access time of the file, in nanoseconds since [`st_atime`]. + /// + /// [`st_atime`]: Self::st_atime + /// + /// # Examples + /// + /// ```no_run + /// use std::fs; + /// use std::io; + /// use std::os::rtems::fs::MetadataExt; + /// + /// fn main() -> io::Result<()> { + /// let meta = fs::metadata("some_file")?; + /// println!("{}", meta.st_atime_nsec()); + /// Ok(()) + /// } + /// ``` + #[stable(feature = "metadata_ext2", since = "1.8.0")] + fn st_atime_nsec(&self) -> i64; + + /// Returns the last modification time of the file, in seconds since Unix Epoch. + /// + /// # Examples + /// + /// ```no_run + /// use std::fs; + /// use std::io; + /// use std::os::rtems::fs::MetadataExt; + /// + /// fn main() -> io::Result<()> { + /// let meta = fs::metadata("some_file")?; + /// println!("{}", meta.st_mtime()); + /// Ok(()) + /// } + /// ``` + #[stable(feature = "metadata_ext2", since = "1.8.0")] + fn st_mtime(&self) -> i64; + + /// Returns the last modification time of the file, in nanoseconds since [`st_mtime`]. + /// + /// [`st_mtime`]: Self::st_mtime + /// + /// # Examples + /// + /// ```no_run + /// use std::fs; + /// use std::io; + /// use std::os::rtems::fs::MetadataExt; + /// + /// fn main() -> io::Result<()> { + /// let meta = fs::metadata("some_file")?; + /// println!("{}", meta.st_mtime_nsec()); + /// Ok(()) + /// } + /// ``` + #[stable(feature = "metadata_ext2", since = "1.8.0")] + fn st_mtime_nsec(&self) -> i64; + + /// Returns the last status change time of the file, in seconds since Unix Epoch. + /// + /// # Examples + /// + /// ```no_run + /// use std::fs; + /// use std::io; + /// use std::os::rtems::fs::MetadataExt; + /// + /// fn main() -> io::Result<()> { + /// let meta = fs::metadata("some_file")?; + /// println!("{}", meta.st_ctime()); + /// Ok(()) + /// } + /// ``` + #[stable(feature = "metadata_ext2", since = "1.8.0")] + fn st_ctime(&self) -> i64; + + /// Returns the last status change time of the file, in nanoseconds since [`st_ctime`]. + /// + /// [`st_ctime`]: Self::st_ctime + /// + /// # Examples + /// + /// ```no_run + /// use std::fs; + /// use std::io; + /// use std::os::rtems::fs::MetadataExt; + /// + /// fn main() -> io::Result<()> { + /// let meta = fs::metadata("some_file")?; + /// println!("{}", meta.st_ctime_nsec()); + /// Ok(()) + /// } + /// ``` + #[stable(feature = "metadata_ext2", since = "1.8.0")] + fn st_ctime_nsec(&self) -> i64; + + /// Returns the "preferred" block size for efficient filesystem I/O. + /// + /// # Examples + /// + /// ```no_run + /// use std::fs; + /// use std::io; + /// use std::os::rtems::fs::MetadataExt; + /// + /// fn main() -> io::Result<()> { + /// let meta = fs::metadata("some_file")?; + /// println!("{}", meta.st_blksize()); + /// Ok(()) + /// } + /// ``` + #[stable(feature = "metadata_ext2", since = "1.8.0")] + fn st_blksize(&self) -> u64; + + /// Returns the number of blocks allocated to the file, 512-byte units. + /// + /// # Examples + /// + /// ```no_run + /// use std::fs; + /// use std::io; + /// use std::os::rtems::fs::MetadataExt; + /// + /// fn main() -> io::Result<()> { + /// let meta = fs::metadata("some_file")?; + /// println!("{}", meta.st_blocks()); + /// Ok(()) + /// } + /// ``` + #[stable(feature = "metadata_ext2", since = "1.8.0")] + fn st_blocks(&self) -> u64; +} + +#[stable(feature = "metadata_ext", since = "1.1.0")] +impl MetadataExt for Metadata { + fn st_dev(&self) -> u64 { + self.as_inner().as_inner().st_dev as u64 + } + + fn st_ino(&self) -> u64 { + self.as_inner().as_inner().st_ino as u64 + } + + fn st_mode(&self) -> u32 { + self.as_inner().as_inner().st_mode as u32 + } + + fn st_nlink(&self) -> u64 { + self.as_inner().as_inner().st_nlink as u64 + } + + fn st_uid(&self) -> u32 { + self.as_inner().as_inner().st_uid as u32 + } + + fn st_gid(&self) -> u32 { + self.as_inner().as_inner().st_gid as u32 + } + + fn st_rdev(&self) -> u64 { + self.as_inner().as_inner().st_rdev as u64 + } + + fn st_size(&self) -> u64 { + self.as_inner().as_inner().st_size as u64 + } + + fn st_atime(&self) -> i64 { + self.as_inner().as_inner().st_atime as i64 + } + + fn st_atime_nsec(&self) -> i64 { + 0 + } + + fn st_mtime(&self) -> i64 { + self.as_inner().as_inner().st_mtime as i64 + } + + fn st_mtime_nsec(&self) -> i64 { + 0 + } + + fn st_ctime(&self) -> i64 { + self.as_inner().as_inner().st_ctime as i64 + } + + fn st_ctime_nsec(&self) -> i64 { + 0 + } + + fn st_blksize(&self) -> u64 { + self.as_inner().as_inner().st_blksize as u64 + } + + fn st_blocks(&self) -> u64 { + self.as_inner().as_inner().st_blocks as u64 + } +} diff --git a/library/std/src/os/rtems/mod.rs b/library/std/src/os/rtems/mod.rs new file mode 100644 index 00000000000..7275bfd1765 --- /dev/null +++ b/library/std/src/os/rtems/mod.rs @@ -0,0 +1,4 @@ +#![stable(feature = "raw_ext", since = "1.1.0")] +#![forbid(unsafe_op_in_unsafe_fn)] +pub mod fs; +pub(crate) mod raw; diff --git a/library/std/src/os/rtems/raw.rs b/library/std/src/os/rtems/raw.rs new file mode 100644 index 00000000000..113079cf4ab --- /dev/null +++ b/library/std/src/os/rtems/raw.rs @@ -0,0 +1,33 @@ +//! rtems raw type definitions + +#![stable(feature = "raw_ext", since = "1.1.0")] +#![deprecated( + since = "1.8.0", + note = "these type aliases are no longer supported by \ + the standard library, the `libc` crate on \ + crates.io should be used instead for the correct \ + definitions" +)] +#![allow(deprecated)] + +#[stable(feature = "pthread_t", since = "1.8.0")] +pub type pthread_t = libc::pthread_t; + +#[stable(feature = "raw_ext", since = "1.1.0")] +pub type blkcnt_t = libc::blkcnt_t; + +#[stable(feature = "raw_ext", since = "1.1.0")] +pub type blksize_t = libc::blksize_t; +#[stable(feature = "raw_ext", since = "1.1.0")] +pub type dev_t = libc::dev_t; +#[stable(feature = "raw_ext", since = "1.1.0")] +pub type ino_t = libc::ino_t; +#[stable(feature = "raw_ext", since = "1.1.0")] +pub type mode_t = libc::mode_t; +#[stable(feature = "raw_ext", since = "1.1.0")] +pub type nlink_t = libc::nlink_t; +#[stable(feature = "raw_ext", since = "1.1.0")] +pub type off_t = libc::off_t; + +#[stable(feature = "raw_ext", since = "1.1.0")] +pub type time_t = libc::time_t; diff --git a/library/std/src/os/unix/mod.rs b/library/std/src/os/unix/mod.rs index c6581b9c4c8..7d2f0bd4efe 100644 --- a/library/std/src/os/unix/mod.rs +++ b/library/std/src/os/unix/mod.rs @@ -73,6 +73,8 @@ mod platform { pub use crate::os::openbsd::*; #[cfg(target_os = "redox")] pub use crate::os::redox::*; + #[cfg(target_os = "rtems")] + pub use crate::os::rtems::*; #[cfg(target_os = "solaris")] pub use crate::os::solaris::*; #[cfg(target_os = "vita")] diff --git a/library/std/src/sys/pal/unix/args.rs b/library/std/src/sys/pal/unix/args.rs index 9a37e1a0346..a943e3a581a 100644 --- a/library/std/src/sys/pal/unix/args.rs +++ b/library/std/src/sys/pal/unix/args.rs @@ -112,6 +112,7 @@ impl DoubleEndedIterator for Args { target_os = "aix", target_os = "nto", target_os = "hurd", + target_os = "rtems", ))] mod imp { use crate::ffi::c_char; diff --git a/library/std/src/sys/pal/unix/env.rs b/library/std/src/sys/pal/unix/env.rs index fb1f868644d..b2d399b8791 100644 --- a/library/std/src/sys/pal/unix/env.rs +++ b/library/std/src/sys/pal/unix/env.rs @@ -240,6 +240,17 @@ pub mod os { pub const EXE_EXTENSION: &str = ""; } +#[cfg(target_os = "rtems")] +pub mod os { + pub const FAMILY: &str = "unix"; + pub const OS: &str = "rtems"; + pub const DLL_PREFIX: &str = "lib"; + pub const DLL_SUFFIX: &str = ".so"; + pub const DLL_EXTENSION: &str = "so"; + pub const EXE_SUFFIX: &str = ""; + pub const EXE_EXTENSION: &str = ""; +} + #[cfg(target_os = "vxworks")] pub mod os { pub const FAMILY: &str = "unix"; diff --git a/library/std/src/sys/pal/unix/fs.rs b/library/std/src/sys/pal/unix/fs.rs index 7fa147c9754..4ec577a0a01 100644 --- a/library/std/src/sys/pal/unix/fs.rs +++ b/library/std/src/sys/pal/unix/fs.rs @@ -478,6 +478,7 @@ impl FileAttr { target_os = "horizon", target_os = "vita", target_os = "hurd", + target_os = "rtems", )))] pub fn modified(&self) -> io::Result<SystemTime> { #[cfg(target_pointer_width = "32")] @@ -490,7 +491,12 @@ impl FileAttr { SystemTime::new(self.stat.st_mtime as i64, self.stat.st_mtime_nsec as i64) } - #[cfg(any(target_os = "vxworks", target_os = "espidf", target_os = "vita"))] + #[cfg(any( + target_os = "vxworks", + target_os = "espidf", + target_os = "vita", + target_os = "rtems", + ))] pub fn modified(&self) -> io::Result<SystemTime> { SystemTime::new(self.stat.st_mtime as i64, 0) } @@ -506,6 +512,7 @@ impl FileAttr { target_os = "horizon", target_os = "vita", target_os = "hurd", + target_os = "rtems", )))] pub fn accessed(&self) -> io::Result<SystemTime> { #[cfg(target_pointer_width = "32")] @@ -518,7 +525,12 @@ impl FileAttr { SystemTime::new(self.stat.st_atime as i64, self.stat.st_atime_nsec as i64) } - #[cfg(any(target_os = "vxworks", target_os = "espidf", target_os = "vita"))] + #[cfg(any( + target_os = "vxworks", + target_os = "espidf", + target_os = "vita", + target_os = "rtems" + ))] pub fn accessed(&self) -> io::Result<SystemTime> { SystemTime::new(self.stat.st_atime as i64, 0) } @@ -853,6 +865,7 @@ impl Drop for Dir { target_os = "fuchsia", target_os = "horizon", target_os = "vxworks", + target_os = "rtems", )))] { let fd = unsafe { libc::dirfd(self.0) }; @@ -970,6 +983,7 @@ impl DirEntry { target_os = "aix", target_os = "nto", target_os = "hurd", + target_os = "rtems", target_vendor = "apple", ))] pub fn ino(&self) -> u64 { diff --git a/library/std/src/sys/pal/unix/mod.rs b/library/std/src/sys/pal/unix/mod.rs index ba2f58f9c10..e8428eccb16 100644 --- a/library/std/src/sys/pal/unix/mod.rs +++ b/library/std/src/sys/pal/unix/mod.rs @@ -79,6 +79,7 @@ pub unsafe fn init(argc: isize, argv: *const *const u8, sigpipe: u8) { target_os = "l4re", target_os = "horizon", target_os = "vita", + target_os = "rtems", // The poll on Darwin doesn't set POLLNVAL for closed fds. target_vendor = "apple", )))] diff --git a/library/std/src/sys/pal/unix/os.rs b/library/std/src/sys/pal/unix/os.rs index a785b97ac8d..503f8915256 100644 --- a/library/std/src/sys/pal/unix/os.rs +++ b/library/std/src/sys/pal/unix/os.rs @@ -31,7 +31,7 @@ cfg_if::cfg_if! { } extern "C" { - #[cfg(not(any(target_os = "dragonfly", target_os = "vxworks")))] + #[cfg(not(any(target_os = "dragonfly", target_os = "vxworks", target_os = "rtems")))] #[cfg_attr( any( target_os = "linux", @@ -61,13 +61,14 @@ extern "C" { } /// Returns the platform-specific value of errno -#[cfg(not(any(target_os = "dragonfly", target_os = "vxworks")))] +#[cfg(not(any(target_os = "dragonfly", target_os = "vxworks", target_os = "rtems")))] pub fn errno() -> i32 { unsafe { (*errno_location()) as i32 } } /// Sets the platform-specific value of errno -#[cfg(all(not(target_os = "dragonfly"), not(target_os = "vxworks")))] // needed for readdir and syscall! +// needed for readdir and syscall! +#[cfg(all(not(target_os = "dragonfly"), not(target_os = "vxworks"), not(target_os = "rtems")))] #[allow(dead_code)] // but not all target cfgs actually end up using it pub fn set_errno(e: i32) { unsafe { *errno_location() = e as c_int } @@ -78,6 +79,16 @@ pub fn errno() -> i32 { unsafe { libc::errnoGet() } } +#[cfg(target_os = "rtems")] +pub fn errno() -> i32 { + extern "C" { + #[thread_local] + static _tls_errno: c_int; + } + + unsafe { _tls_errno as i32 } +} + #[cfg(target_os = "dragonfly")] pub fn errno() -> i32 { extern "C" { @@ -472,7 +483,7 @@ pub fn current_exe() -> io::Result<PathBuf> { } } -#[cfg(target_os = "redox")] +#[cfg(any(target_os = "redox", target_os = "rtems"))] pub fn current_exe() -> io::Result<PathBuf> { crate::fs::read_to_string("sys:exe").map(PathBuf::from) } diff --git a/library/std/src/sys/pal/unix/process/process_unix.rs b/library/std/src/sys/pal/unix/process/process_unix.rs index 9d091f033e0..4bb22f36709 100644 --- a/library/std/src/sys/pal/unix/process/process_unix.rs +++ b/library/std/src/sys/pal/unix/process/process_unix.rs @@ -1089,13 +1089,13 @@ fn signal_string(signal: i32) -> &'static str { libc::SIGURG => " (SIGURG)", #[cfg(not(target_os = "l4re"))] libc::SIGXCPU => " (SIGXCPU)", - #[cfg(not(target_os = "l4re"))] + #[cfg(not(any(target_os = "l4re", target_os = "rtems")))] libc::SIGXFSZ => " (SIGXFSZ)", - #[cfg(not(target_os = "l4re"))] + #[cfg(not(any(target_os = "l4re", target_os = "rtems")))] libc::SIGVTALRM => " (SIGVTALRM)", #[cfg(not(target_os = "l4re"))] libc::SIGPROF => " (SIGPROF)", - #[cfg(not(target_os = "l4re"))] + #[cfg(not(any(target_os = "l4re", target_os = "rtems")))] libc::SIGWINCH => " (SIGWINCH)", #[cfg(not(any(target_os = "haiku", target_os = "l4re")))] libc::SIGIO => " (SIGIO)", diff --git a/library/std/src/sys/pal/windows/mod.rs b/library/std/src/sys/pal/windows/mod.rs index 272fadd9150..1cc9a2b7ffa 100644 --- a/library/std/src/sys/pal/windows/mod.rs +++ b/library/std/src/sys/pal/windows/mod.rs @@ -13,7 +13,7 @@ use crate::time::Duration; #[macro_use] pub mod compat; -mod api; +pub mod api; pub mod args; pub mod c; diff --git a/library/std/src/sys/pal/windows/process.rs b/library/std/src/sys/pal/windows/process.rs index 06eae5a07b0..d40a537e359 100644 --- a/library/std/src/sys/pal/windows/process.rs +++ b/library/std/src/sys/pal/windows/process.rs @@ -272,11 +272,24 @@ impl Command { None }; let program = resolve_exe(&self.program, || env::var_os("PATH"), child_paths)?; - // Case insensitive "ends_with" of UTF-16 encoded ".bat" or ".cmd" - let is_batch_file = matches!( - program.len().checked_sub(5).and_then(|i| program.get(i..)), - Some([46, 98 | 66, 97 | 65, 116 | 84, 0] | [46, 99 | 67, 109 | 77, 100 | 68, 0]) - ); + let has_bat_extension = |program: &[u16]| { + matches!( + // Case insensitive "ends_with" of UTF-16 encoded ".bat" or ".cmd" + program.len().checked_sub(4).and_then(|i| program.get(i..)), + Some([46, 98 | 66, 97 | 65, 116 | 84] | [46, 99 | 67, 109 | 77, 100 | 68]) + ) + }; + let is_batch_file = if path::is_verbatim(&program) { + has_bat_extension(&program[..program.len() - 1]) + } else { + super::fill_utf16_buf( + |buffer, size| unsafe { + // resolve the path so we can test the final file name. + c::GetFullPathNameW(program.as_ptr(), size, buffer, ptr::null_mut()) + }, + |program| has_bat_extension(program), + )? + }; let (program, mut cmd_str) = if is_batch_file { ( command_prompt()?, diff --git a/library/std/src/sys/path/windows.rs b/library/std/src/sys/path/windows.rs index 21841eb18cc..2ae9a0a9199 100644 --- a/library/std/src/sys/path/windows.rs +++ b/library/std/src/sys/path/windows.rs @@ -1,5 +1,6 @@ use crate::ffi::{OsStr, OsString}; use crate::path::{Path, PathBuf, Prefix}; +use crate::sys::api::utf16; use crate::sys::pal::{c, fill_utf16_buf, os2path, to_u16s}; use crate::{io, ptr}; @@ -19,6 +20,10 @@ pub fn is_verbatim_sep(b: u8) -> bool { b == b'\\' } +pub fn is_verbatim(path: &[u16]) -> bool { + path.starts_with(utf16!(r"\\?\")) || path.starts_with(utf16!(r"\??\")) +} + /// Returns true if `path` looks like a lone filename. pub(crate) fn is_file_name(path: &OsStr) -> bool { !path.as_encoded_bytes().iter().copied().any(is_sep_byte) diff --git a/library/std/src/sys/personality/mod.rs b/library/std/src/sys/personality/mod.rs index 1a6ea1dafcb..68085d026c4 100644 --- a/library/std/src/sys/personality/mod.rs +++ b/library/std/src/sys/personality/mod.rs @@ -31,7 +31,7 @@ cfg_if::cfg_if! { target_os = "psp", target_os = "xous", target_os = "solid_asp3", - all(target_family = "unix", not(target_os = "espidf"), not(target_os = "l4re")), + all(target_family = "unix", not(target_os = "espidf"), not(target_os = "l4re"), not(target_os = "rtems")), all(target_vendor = "fortanix", target_env = "sgx"), ))] { mod gcc; diff --git a/library/unwind/Cargo.toml b/library/unwind/Cargo.toml index bbd1db8dfa5..590de31a678 100644 --- a/library/unwind/Cargo.toml +++ b/library/unwind/Cargo.toml @@ -34,3 +34,10 @@ llvm-libunwind = [] # If crt-static is enabled, static link to `libunwind.a` provided by system # If crt-static is disabled, dynamic link to `libunwind.so` provided by system system-llvm-libunwind = [] + +[lints.rust.unexpected_cfgs] +level = "warn" +check-cfg = [ + # #[cfg(bootstrap)] rtems + 'cfg(target_os, values("rtems"))', +] diff --git a/library/unwind/src/lib.rs b/library/unwind/src/lib.rs index 250af912e07..26ed00bfbd5 100644 --- a/library/unwind/src/lib.rs +++ b/library/unwind/src/lib.rs @@ -22,6 +22,7 @@ cfg_if::cfg_if! { target_os = "l4re", target_os = "none", target_os = "espidf", + target_os = "rtems", ))] { // These "unix" family members do not have unwinder. } else if #[cfg(any( diff --git a/src/bootstrap/src/core/build_steps/format.rs b/src/bootstrap/src/core/build_steps/format.rs index 8c52df78ab6..91fbc57429a 100644 --- a/src/bootstrap/src/core/build_steps/format.rs +++ b/src/bootstrap/src/core/build_steps/format.rs @@ -93,7 +93,6 @@ fn get_modified_rs_files(build: &Builder<'_>) -> Result<Option<Vec<String>>, Str if !verify_rustfmt_version(build) { return Ok(None); } - get_git_modified_files(&build.config.git_config(), Some(&build.config.src), &["rs"]) } diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index 84a6b26a491..a8e12540473 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -1810,6 +1810,9 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the if builder.config.rust_optimize_tests { cmd.arg("--optimize-tests"); } + if builder.config.rust_randomize_layout { + cmd.arg("--rust-randomized-layout"); + } if builder.config.cmd.only_modified() { cmd.arg("--only-modified"); } diff --git a/src/bootstrap/src/core/builder.rs b/src/bootstrap/src/core/builder.rs index d7398b76cc9..304fe8da2bf 100644 --- a/src/bootstrap/src/core/builder.rs +++ b/src/bootstrap/src/core/builder.rs @@ -1618,6 +1618,15 @@ impl<'a> Builder<'a> { rustflags.arg("-Csymbol-mangling-version=legacy"); } + // FIXME: the following components don't build with `-Zrandomize-layout` yet: + // - wasm-component-ld, due to the `wast`crate + // - rust-analyzer, due to the rowan crate + // so we exclude entire categories of steps here due to lack of fine-grained control over + // rustflags. + if self.config.rust_randomize_layout && mode != Mode::ToolStd && mode != Mode::ToolRustc { + rustflags.arg("-Zrandomize-layout"); + } + // Enable compile-time checking of `cfg` names, values and Cargo `features`. // // Note: `std`, `alloc` and `core` imports some dependencies by #[path] (like @@ -2193,6 +2202,9 @@ impl<'a> Builder<'a> { rustflags.arg("-Zvalidate-mir"); rustflags.arg(&format!("-Zmir-opt-level={mir_opt_level}")); } + if self.config.rust_randomize_layout { + rustflags.arg("--cfg=randomized_layouts"); + } // Always enable inlining MIR when building the standard library. // Without this flag, MIR inlining is disabled when incremental compilation is enabled. // That causes some mir-opt tests which inline functions from the standard library to diff --git a/src/bootstrap/src/core/config/config.rs b/src/bootstrap/src/core/config/config.rs index 466473fa5ec..f7cc9ee7219 100644 --- a/src/bootstrap/src/core/config/config.rs +++ b/src/bootstrap/src/core/config/config.rs @@ -279,6 +279,7 @@ pub struct Config { pub rust_codegen_backends: Vec<String>, pub rust_verify_llvm_ir: bool, pub rust_thin_lto_import_instr_limit: Option<u32>, + pub rust_randomize_layout: bool, pub rust_remap_debuginfo: bool, pub rust_new_symbol_mangling: Option<bool>, pub rust_profile_use: Option<String>, @@ -1089,6 +1090,7 @@ define_config! { codegen_units: Option<u32> = "codegen-units", codegen_units_std: Option<u32> = "codegen-units-std", debug_assertions: Option<bool> = "debug-assertions", + randomize_layout: Option<bool> = "randomize-layout", debug_assertions_std: Option<bool> = "debug-assertions-std", overflow_checks: Option<bool> = "overflow-checks", overflow_checks_std: Option<bool> = "overflow-checks-std", @@ -1179,6 +1181,7 @@ impl Config { backtrace: true, rust_optimize: RustOptimize::Bool(true), rust_optimize_tests: true, + rust_randomize_layout: false, submodules: None, docs: true, docs_minification: true, @@ -1637,6 +1640,7 @@ impl Config { backtrace, incremental, parallel_compiler, + randomize_layout, default_linker, channel, description, @@ -1714,6 +1718,7 @@ impl Config { set(&mut config.lld_mode, lld_mode); set(&mut config.llvm_bitcode_linker_enabled, llvm_bitcode_linker); + config.rust_randomize_layout = randomize_layout.unwrap_or_default(); config.llvm_tools_enabled = llvm_tools.unwrap_or(true); config.rustc_parallel = parallel_compiler.unwrap_or(config.channel == "dev" || config.channel == "nightly"); @@ -2882,6 +2887,7 @@ fn check_incompatible_options_for_ci_rustc( let Rust { // Following options are the CI rustc incompatible ones. optimize, + randomize_layout, debug_logging, debuginfo_level_rustc, llvm_tools, @@ -2945,6 +2951,7 @@ fn check_incompatible_options_for_ci_rustc( // otherwise, we just print a warning with `warn` macro. err!(current_rust_config.optimize, optimize); + err!(current_rust_config.randomize_layout, randomize_layout); err!(current_rust_config.debug_logging, debug_logging); err!(current_rust_config.debuginfo_level_rustc, debuginfo_level_rustc); err!(current_rust_config.rpath, rpath); diff --git a/src/bootstrap/src/core/sanity.rs b/src/bootstrap/src/core/sanity.rs index 60ec57d0d44..dbc712adadf 100644 --- a/src/bootstrap/src/core/sanity.rs +++ b/src/bootstrap/src/core/sanity.rs @@ -13,6 +13,8 @@ use std::ffi::{OsStr, OsString}; use std::path::PathBuf; use std::{env, fs}; +use build_helper::git::warn_old_master_branch; + #[cfg(not(feature = "bootstrap-self-test"))] use crate::builder::Builder; use crate::builder::Kind; @@ -34,6 +36,7 @@ pub struct Finder { // Targets can be removed from this list once they are present in the stage0 compiler (usually by updating the beta compiler of the bootstrap). const STAGE0_MISSING_TARGETS: &[&str] = &[ // just a dummy comment so the list doesn't get onelined + "armv7-rtems-eabihf", ]; /// Minimum version threshold for libstdc++ required when using prebuilt LLVM @@ -374,4 +377,14 @@ $ pacman -R cmake && pacman -S mingw-w64-x86_64-cmake if let Some(ref s) = build.config.ccache { cmd_finder.must_have(s); } + + // this warning is useless in CI, + // and CI probably won't have the right branches anyway. + if !build_helper::ci::CiEnv::is_ci() { + if let Err(e) = warn_old_master_branch(&build.config.git_config(), &build.config.src) + .map_err(|e| e.to_string()) + { + eprintln!("unable to check if upstream branch is old: {e}"); + } + } } diff --git a/src/bootstrap/src/lib.rs b/src/bootstrap/src/lib.rs index 82b640f5423..5751c398f30 100644 --- a/src/bootstrap/src/lib.rs +++ b/src/bootstrap/src/lib.rs @@ -678,6 +678,9 @@ impl Build { if self.config.rustc_parallel { features.push("rustc_use_parallel_compiler"); } + if self.config.rust_randomize_layout { + features.push("rustc_randomized_layouts"); + } // If debug logging is on, then we want the default for tracing: // https://github.com/tokio-rs/tracing/blob/3dd5c03d907afdf2c39444a29931833335171554/tracing/src/level_filters.rs#L26 diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-17/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-17/Dockerfile index 275acb47c33..3acc2ceb135 100644 --- a/src/ci/docker/host-x86_64/x86_64-gnu-llvm-17/Dockerfile +++ b/src/ci/docker/host-x86_64/x86_64-gnu-llvm-17/Dockerfile @@ -50,6 +50,7 @@ ENV RUST_CONFIGURE_ARGS \ --build=x86_64-unknown-linux-gnu \ --llvm-root=/usr/lib/llvm-17 \ --enable-llvm-link-shared \ + --set rust.randomize-layout=true \ --set rust.thin-lto-import-instr-limit=10 COPY host-x86_64/dist-x86_64-linux/shared.sh /scripts/ diff --git a/src/ci/docker/scripts/rfl-build.sh b/src/ci/docker/scripts/rfl-build.sh index 389abb2fdd3..8011e07e92e 100755 --- a/src/ci/docker/scripts/rfl-build.sh +++ b/src/ci/docker/scripts/rfl-build.sh @@ -4,8 +4,8 @@ set -euo pipefail LINUX_VERSION=4c7864e81d8bbd51036dacf92fb0a400e13aaeee -# Build rustc, rustdoc and cargo -../x.py build --stage 1 library rustdoc +# Build rustc, rustdoc, cargo, clippy-driver and rustfmt +../x.py build --stage 2 library rustdoc clippy rustfmt ../x.py build --stage 0 cargo # Install rustup so that we can use the built toolchain easily, and also @@ -16,7 +16,7 @@ sh rustup.sh -y --default-toolchain none source /cargo/env BUILD_DIR=$(realpath ./build) -rustup toolchain link local "${BUILD_DIR}"/x86_64-unknown-linux-gnu/stage1 +rustup toolchain link local "${BUILD_DIR}"/x86_64-unknown-linux-gnu/stage2 rustup default local mkdir -p rfl @@ -62,11 +62,47 @@ make -C linux LLVM=1 -j$(($(nproc) + 1)) \ defconfig \ rfl-for-rust-ci.config -make -C linux LLVM=1 -j$(($(nproc) + 1)) \ - samples/rust/rust_minimal.o \ - samples/rust/rust_print.o \ - drivers/net/phy/ax88796b_rust.o \ +BUILD_TARGETS=" + samples/rust/rust_minimal.o + samples/rust/rust_print.o + drivers/net/phy/ax88796b_rust.o rust/doctests_kernel_generated.o +" + +# Build a few Rust targets +# +# This does not include building the C side of the kernel nor linking, +# which can find other issues, but it is much faster. +# +# This includes transforming `rustdoc` tests into KUnit ones thanks to +# `CONFIG_RUST_KERNEL_DOCTESTS=y` above (which, for the moment, uses the +# unstable `--test-builder` and `--no-run`). +make -C linux LLVM=1 -j$(($(nproc) + 1)) \ + $BUILD_TARGETS +# Generate documentation make -C linux LLVM=1 -j$(($(nproc) + 1)) \ rustdoc + +# Build macro expanded source (`-Zunpretty=expanded`) +# +# This target also formats the macro expanded code, thus it is also +# intended to catch ICEs with formatting `-Zunpretty=expanded` output +# like https://github.com/rust-lang/rustfmt/issues/6105. +make -C linux LLVM=1 -j$(($(nproc) + 1)) \ + samples/rust/rust_minimal.rsi + +# Re-build with Clippy enabled +# +# This should not introduce Clippy errors, since `CONFIG_WERROR` is not +# set (thus no `-Dwarnings`) and the kernel uses `-W` for all Clippy +# lints, including `clippy::all`. However, it could catch ICEs. +make -C linux LLVM=1 -j$(($(nproc) + 1)) CLIPPY=1 \ + $BUILD_TARGETS + +# Format the code +# +# This returns successfully even if there were changes, i.e. it is not +# a check. +make -C linux LLVM=1 -j$(($(nproc) + 1)) \ + rustfmt diff --git a/src/doc/not_found.md b/src/doc/not_found.md index f0794fc0be3..9552759d2b8 100644 --- a/src/doc/not_found.md +++ b/src/doc/not_found.md @@ -2,7 +2,7 @@ <!-- Completely hide the TOC and the section numbers --> <style type="text/css"> -#TOC { display: none; } +#rustdoc-toc { display: none; } .header-section-number { display: none; } li {list-style-type: none; } #search-input { diff --git a/src/doc/rustc/src/SUMMARY.md b/src/doc/rustc/src/SUMMARY.md index b3a74a7716b..3e199539694 100644 --- a/src/doc/rustc/src/SUMMARY.md +++ b/src/doc/rustc/src/SUMMARY.md @@ -40,6 +40,7 @@ - [thumbv8m.base-none-eabi](./platform-support/thumbv8m.base-none-eabi.md) - [thumbv8m.main-none-eabi\*](./platform-support/thumbv8m.main-none-eabi.md) - [armv6k-nintendo-3ds](platform-support/armv6k-nintendo-3ds.md) + - [armv7-rtems-eabihf](platform-support/armv7-rtems-eabihf.md) - [armv7-sony-vita-newlibeabihf](platform-support/armv7-sony-vita-newlibeabihf.md) - [armv7-unknown-linux-uclibceabi](platform-support/armv7-unknown-linux-uclibceabi.md) - [armv7-unknown-linux-uclibceabihf](platform-support/armv7-unknown-linux-uclibceabihf.md) diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md index a2641b22753..319dc9a7c08 100644 --- a/src/doc/rustc/src/platform-support.md +++ b/src/doc/rustc/src/platform-support.md @@ -280,6 +280,7 @@ target | std | host | notes `armv6-unknown-freebsd` | ✓ | ✓ | Armv6 FreeBSD [`armv6-unknown-netbsd-eabihf`](platform-support/netbsd.md) | ✓ | ✓ | Armv6 NetBSD w/hard-float [`armv6k-nintendo-3ds`](platform-support/armv6k-nintendo-3ds.md) | ? | | Armv6k Nintendo 3DS, Horizon (Requires devkitARM toolchain) +[`armv7-rtems-eabihf`](platform-support/armv7-rtems-eabihf.md) | ? | | RTEMS OS for ARM BSPs [`armv7-sony-vita-newlibeabihf`](platform-support/armv7-sony-vita-newlibeabihf.md) | ✓ | | Armv7-A Cortex-A9 Sony PlayStation Vita (requires VITASDK toolchain) [`armv7-unknown-linux-uclibceabi`](platform-support/armv7-unknown-linux-uclibceabi.md) | ✓ | ✓ | Armv7-A Linux with uClibc, softfloat [`armv7-unknown-linux-uclibceabihf`](platform-support/armv7-unknown-linux-uclibceabihf.md) | ✓ | ? | Armv7-A Linux with uClibc, hardfloat diff --git a/src/doc/rustc/src/platform-support/armv7-rtems-eabihf.md b/src/doc/rustc/src/platform-support/armv7-rtems-eabihf.md new file mode 100644 index 00000000000..2791c21ee45 --- /dev/null +++ b/src/doc/rustc/src/platform-support/armv7-rtems-eabihf.md @@ -0,0 +1,52 @@ +# `armv7-rtems-eabihf` + +**Tier: 3** + +ARM targets for the [RTEMS realtime operating system](https://www.rtems.org) using the RTEMS gcc cross-compiler for linking against the libraries of a specified Board Support Package (BSP). + +## Target maintainers + +- [@thesummer](https://github.com/thesummer) + +## Requirements + +The target does not support host tools. Only cross-compilation is possible. +The cross-compiler toolchain can be obtained by following the installation instructions +of the [RTEMS Documentation](https://docs.rtems.org/branches/master/user/index.html). Additionally to the cross-compiler also a compiled BSP +for a board fitting the architecture needs to be available on the host. +Currently tested has been the BSP `xilinx_zynq_a9_qemu` of RTEMS 6. + +`std` support is available, but not yet fully tested. Do NOT use in flight software! + +The target follows the EABI calling convention for `extern "C"`. + +The resulting binaries are in ELF format. + +## Building the target + +The target can be built by the standard compiler of Rust. + +## Building Rust programs + +Rust does not yet ship pre-compiled artifacts for this target. To compile for +this target, you will either need to build Rust with the target enabled (see +"Building the target" above), or build your own copy of `core` by using +`build-std` or similar. + +In order to build an RTEMS executable it is also necessary to have a basic RTEMS configuration (in C) compiled to link against as this configures the operating system. +An example can be found at this [`rtems-sys`](https://github.com/thesummer/rtems-sys) crate which could be added as an dependency to your application. + +## Testing + +The resulting binaries run fine on an emulated target (possibly also on a real Zedboard or similar). +For example, on qemu the following command can execute the binary: +```sh +qemu-system-arm -no-reboot -serial null -serial mon:stdio -net none -nographic -M xilinx-zynq-a9 -m 512M -kernel <binary file> +``` + +While basic execution of the unit test harness seems to work. However, running the Rust testsuite on the (emulated) hardware has not yet been tested. + +## Cross-compilation toolchains and C code + +Compatible C-code can be built with the RTEMS cross-compiler toolchain `arm-rtems6-gcc`. +For more information how to build the toolchain, RTEMS itself and RTEMS applications please have a look at the [RTEMS Documentation](https://docs.rtems.org/branches/master/user/index.html). diff --git a/src/doc/rustc/src/platform-support/wasm32-unknown-unknown.md b/src/doc/rustc/src/platform-support/wasm32-unknown-unknown.md index 12b7817c382..0e06a820a22 100644 --- a/src/doc/rustc/src/platform-support/wasm32-unknown-unknown.md +++ b/src/doc/rustc/src/platform-support/wasm32-unknown-unknown.md @@ -195,3 +195,120 @@ conditionally compile code instead. This is notably different to the way native platforms such as x86\_64 work, and this is due to the fact that WebAssembly binaries must only contain code the engine understands. Native binaries work so long as the CPU doesn't execute unknown code dynamically at runtime. + +## Broken `extern "C"` ABI + +This target has what is considered a broken `extern "C"` ABI implementation at +this time. Notably the same signature in Rust and C will compile to different +WebAssembly functions and be incompatible. This is considered a bug and it will +be fixed in a future version of Rust. + +For example this Rust code: + +```rust,ignore (does-not-link) +#[repr(C)] +struct MyPair { + a: u32, + b: u32, +} + +extern "C" { + fn take_my_pair(pair: MyPair) -> u32; +} + +#[no_mangle] +pub unsafe extern "C" fn call_c() -> u32 { + take_my_pair(MyPair { a: 1, b: 2 }) +} +``` + +compiles to a WebAssembly module that looks like: + +```wasm +(module + (import "env" "take_my_pair" (func $take_my_pair (param i32 i32) (result i32))) + (func $call_c + i32.const 1 + i32.const 2 + call $take_my_pair + ) +) +``` + +The function when defined in C, however, looks like + +```c +struct my_pair { + unsigned a; + unsigned b; +}; + +unsigned take_my_pair(struct my_pair pair) { + return pair.a + pair.b; +} +``` + +```wasm +(module + (import "env" "__linear_memory" (memory 0)) + (func $take_my_pair (param i32) (result i32) + local.get 0 + i32.load offset=4 + local.get 0 + i32.load + i32.add + ) +) +``` + +Notice how Rust thinks `take_my_pair` takes two `i32` parameters but C thinks it +only takes one. + +The correct definition of the `extern "C"` ABI for WebAssembly is located in the +[WebAssembly/tool-conventions](https://github.com/WebAssembly/tool-conventions/blob/main/BasicCABI.md) +repository. The `wasm32-unknown-unknown` target (and only this target, not other +WebAssembly targets Rust support) does not correctly follow this document. + +Example issues in the Rust repository about this bug are: + +* [#115666](https://github.com/rust-lang/rust/issues/115666) +* [#129486](https://github.com/rust-lang/rust/issues/129486) + +This current state of the `wasm32-unknown-unknown` backend is due to an +unfortunate accident which got relied on. The `wasm-bindgen` project prior to +0.2.89 was incompatible with the "correct" definition of `extern "C"` and it was +seen as not worth the tradeoff of breaking `wasm-bindgen` historically to fix +this issue in the compiler. + +Thanks to the heroic efforts of many involved in this, however, `wasm-bindgen` +0.2.89 and later are compatible with the correct definition of `extern "C"` and +the nightly compiler currently supports a `-Zwasm-c-abi` implemented in +[#117919](https://github.com/rust-lang/rust/pull/117919). This nightly-only flag +can be used to indicate whether the spec-defined version of `extern "C"` should +be used instead of the "legacy" version of +whatever-the-Rust-target-originally-implemented. For example using the above +code you can see (lightly edited for clarity): + +```shell +$ rustc +nightly -Zwasm-c-abi=spec foo.rs --target wasm32-unknown-unknown --crate-type lib --emit obj -O +$ wasm-tools print foo.o +(module + (import "env" "take_my_pair" (func $take_my_pair (param i32) (result i32))) + (func $call_c (result i32) + ;; ... + ) + ;; ... +) +``` + +which shows that the C and Rust definitions of the same function now agree like +they should. + +The `-Zwasm-c-abi` compiler flag is tracked in +[#122532](https://github.com/rust-lang/rust/issues/122532) and a lint was +implemented in [#117918](https://github.com/rust-lang/rust/issues/117918) to +help warn users about the transition if they're using `wasm-bindgen` 0.2.88 or +prior. The current plan is to, in the future, switch `-Zwasm-c-api=spec` to +being the default. Some time after that the `-Zwasm-c-abi` flag and the +"legacy" implementation will all be removed. During this process users on a +sufficiently updated version of `wasm-bindgen` should not experience breakage. diff --git a/src/librustdoc/clean/types.rs b/src/librustdoc/clean/types.rs index 58fcfc4ed8d..5666b229078 100644 --- a/src/librustdoc/clean/types.rs +++ b/src/librustdoc/clean/types.rs @@ -512,9 +512,6 @@ impl Item { pub(crate) fn is_mod(&self) -> bool { self.type_() == ItemType::Module } - pub(crate) fn is_trait(&self) -> bool { - self.type_() == ItemType::Trait - } pub(crate) fn is_struct(&self) -> bool { self.type_() == ItemType::Struct } @@ -542,9 +539,6 @@ impl Item { pub(crate) fn is_ty_method(&self) -> bool { self.type_() == ItemType::TyMethod } - pub(crate) fn is_type_alias(&self) -> bool { - self.type_() == ItemType::TypeAlias - } pub(crate) fn is_primitive(&self) -> bool { self.type_() == ItemType::Primitive } diff --git a/src/librustdoc/html/markdown.rs b/src/librustdoc/html/markdown.rs index e37c24c1438..6f4665db6f1 100644 --- a/src/librustdoc/html/markdown.rs +++ b/src/librustdoc/html/markdown.rs @@ -51,12 +51,12 @@ use tracing::{debug, trace}; use crate::clean::RenderedLink; use crate::doctest; use crate::doctest::GlobalTestOptions; -use crate::html::escape::Escape; +use crate::html::escape::{Escape, EscapeBodyText}; use crate::html::format::Buffer; use crate::html::highlight; use crate::html::length_limit::HtmlWithLimit; use crate::html::render::small_url_encode; -use crate::html::toc::TocBuilder; +use crate::html::toc::{Toc, TocBuilder}; #[cfg(test)] mod tests; @@ -102,6 +102,7 @@ pub struct Markdown<'a> { /// A struct like `Markdown` that renders the markdown with a table of contents. pub(crate) struct MarkdownWithToc<'a> { pub(crate) content: &'a str, + pub(crate) links: &'a [RenderedLink], pub(crate) ids: &'a mut IdMap, pub(crate) error_codes: ErrorCodes, pub(crate) edition: Edition, @@ -533,9 +534,11 @@ impl<'a, 'b, 'ids, I: Iterator<Item = SpannedEvent<'a>>> Iterator let id = self.id_map.derive(id); if let Some(ref mut builder) = self.toc { + let mut text_header = String::new(); + plain_text_from_events(self.buf.iter().map(|(ev, _)| ev.clone()), &mut text_header); let mut html_header = String::new(); - html::push_html(&mut html_header, self.buf.iter().map(|(ev, _)| ev.clone())); - let sec = builder.push(level as u32, html_header, id.clone()); + html_text_from_events(self.buf.iter().map(|(ev, _)| ev.clone()), &mut html_header); + let sec = builder.push(level as u32, text_header, html_header, id.clone()); self.buf.push_front((Event::Html(format!("{sec} ").into()), 0..0)); } @@ -1412,10 +1415,23 @@ impl Markdown<'_> { } impl MarkdownWithToc<'_> { - pub(crate) fn into_string(self) -> String { - let MarkdownWithToc { content: md, ids, error_codes: codes, edition, playground } = self; + pub(crate) fn into_parts(self) -> (Toc, String) { + let MarkdownWithToc { content: md, links, ids, error_codes: codes, edition, playground } = + self; - let p = Parser::new_ext(md, main_body_opts()).into_offset_iter(); + // This is actually common enough to special-case + if md.is_empty() { + return (Toc { entries: Vec::new() }, String::new()); + } + let mut replacer = |broken_link: BrokenLink<'_>| { + links + .iter() + .find(|link| &*link.original_text == &*broken_link.reference) + .map(|link| (link.href.as_str().into(), link.tooltip.as_str().into())) + }; + + let p = Parser::new_with_broken_link_callback(md, main_body_opts(), Some(&mut replacer)); + let p = p.into_offset_iter(); let mut s = String::with_capacity(md.len() * 3 / 2); @@ -1429,7 +1445,11 @@ impl MarkdownWithToc<'_> { html::push_html(&mut s, p); } - format!("<nav id=\"TOC\">{toc}</nav>{s}", toc = toc.into_toc().print()) + (toc.into_toc(), s) + } + pub(crate) fn into_string(self) -> String { + let (toc, s) = self.into_parts(); + format!("<nav id=\"rustdoc\">{toc}</nav>{s}", toc = toc.print()) } } @@ -1608,7 +1628,16 @@ pub(crate) fn plain_text_summary(md: &str, link_names: &[RenderedLink]) -> Strin let p = Parser::new_with_broken_link_callback(md, summary_opts(), Some(&mut replacer)); - for event in p { + plain_text_from_events(p, &mut s); + + s +} + +pub(crate) fn plain_text_from_events<'a>( + events: impl Iterator<Item = pulldown_cmark::Event<'a>>, + s: &mut String, +) { + for event in events { match &event { Event::Text(text) => s.push_str(text), Event::Code(code) => { @@ -1623,8 +1652,29 @@ pub(crate) fn plain_text_summary(md: &str, link_names: &[RenderedLink]) -> Strin _ => (), } } +} - s +pub(crate) fn html_text_from_events<'a>( + events: impl Iterator<Item = pulldown_cmark::Event<'a>>, + s: &mut String, +) { + for event in events { + match &event { + Event::Text(text) => { + write!(s, "{}", EscapeBodyText(text)).expect("string alloc infallible") + } + Event::Code(code) => { + s.push_str("<code>"); + write!(s, "{}", EscapeBodyText(code)).expect("string alloc infallible"); + s.push_str("</code>"); + } + Event::HardBreak | Event::SoftBreak => s.push(' '), + Event::Start(Tag::CodeBlock(..)) => break, + Event::End(TagEnd::Paragraph) => break, + Event::End(TagEnd::Heading(..)) => break, + _ => (), + } + } } #[derive(Debug)] @@ -1975,7 +2025,8 @@ fn init_id_map() -> FxHashMap<Cow<'static, str>, usize> { map.insert("default-settings".into(), 1); map.insert("sidebar-vars".into(), 1); map.insert("copy-path".into(), 1); - map.insert("TOC".into(), 1); + map.insert("rustdoc-toc".into(), 1); + map.insert("rustdoc-modnav".into(), 1); // This is the list of IDs used by rustdoc sections (but still generated by // rustdoc). map.insert("fields".into(), 1); diff --git a/src/librustdoc/html/render/context.rs b/src/librustdoc/html/render/context.rs index 19386fe5e69..9fe43e428f2 100644 --- a/src/librustdoc/html/render/context.rs +++ b/src/librustdoc/html/render/context.rs @@ -15,7 +15,7 @@ use rustc_span::{sym, FileName, Symbol}; use tracing::info; use super::print_item::{full_path, item_path, print_item}; -use super::sidebar::{print_sidebar, sidebar_module_like, Sidebar}; +use super::sidebar::{print_sidebar, sidebar_module_like, ModuleLike, Sidebar}; use super::write_shared::write_shared; use super::{collect_spans_and_sources, scrape_examples_help, AllTypes, LinkFromSrc, StylePath}; use crate::clean::types::ExternalLocation; @@ -617,12 +617,14 @@ impl<'tcx> FormatRenderer<'tcx> for Context<'tcx> { let all = shared.all.replace(AllTypes::new()); let mut sidebar = Buffer::html(); - let blocks = sidebar_module_like(all.item_sections()); + // all.html is not customizable, so a blank id map is fine + let blocks = sidebar_module_like(all.item_sections(), &mut IdMap::new(), ModuleLike::Crate); let bar = Sidebar { title_prefix: "", title: "", is_crate: false, is_mod: false, + parent_is_crate: false, blocks: vec![blocks], path: String::new(), }; diff --git a/src/librustdoc/html/render/sidebar.rs b/src/librustdoc/html/render/sidebar.rs index 5b9c93ef74a..c75c28ef0a3 100644 --- a/src/librustdoc/html/render/sidebar.rs +++ b/src/librustdoc/html/render/sidebar.rs @@ -13,7 +13,24 @@ use crate::clean; use crate::formats::item_type::ItemType; use crate::formats::Impl; use crate::html::format::Buffer; -use crate::html::markdown::IdMap; +use crate::html::markdown::{IdMap, MarkdownWithToc}; + +#[derive(Clone, Copy)] +pub(crate) enum ModuleLike { + Module, + Crate, +} + +impl ModuleLike { + pub(crate) fn is_crate(self) -> bool { + matches!(self, ModuleLike::Crate) + } +} +impl<'a> From<&'a clean::Item> for ModuleLike { + fn from(it: &'a clean::Item) -> ModuleLike { + if it.is_crate() { ModuleLike::Crate } else { ModuleLike::Module } + } +} #[derive(Template)] #[template(path = "sidebar.html")] @@ -21,6 +38,7 @@ pub(super) struct Sidebar<'a> { pub(super) title_prefix: &'static str, pub(super) title: &'a str, pub(super) is_crate: bool, + pub(super) parent_is_crate: bool, pub(super) is_mod: bool, pub(super) blocks: Vec<LinkBlock<'a>>, pub(super) path: String, @@ -63,15 +81,19 @@ impl<'a> LinkBlock<'a> { /// A link to an item. Content should not be escaped. #[derive(PartialOrd, Ord, PartialEq, Eq, Hash, Clone)] pub(crate) struct Link<'a> { - /// The content for the anchor tag + /// The content for the anchor tag and title attr name: Cow<'a, str>, + /// The content for the anchor tag (if different from name) + name_html: Option<Cow<'a, str>>, /// The id of an anchor within the page (without a `#` prefix) href: Cow<'a, str>, + /// Nested list of links (used only in top-toc) + children: Vec<Link<'a>>, } impl<'a> Link<'a> { pub fn new(href: impl Into<Cow<'a, str>>, name: impl Into<Cow<'a, str>>) -> Self { - Self { href: href.into(), name: name.into() } + Self { href: href.into(), name: name.into(), children: vec![], name_html: None } } pub fn empty() -> Link<'static> { Link::new("", "") @@ -95,17 +117,21 @@ pub(crate) mod filters { } pub(super) fn print_sidebar(cx: &Context<'_>, it: &clean::Item, buffer: &mut Buffer) { - let blocks: Vec<LinkBlock<'_>> = match *it.kind { - clean::StructItem(ref s) => sidebar_struct(cx, it, s), - clean::TraitItem(ref t) => sidebar_trait(cx, it, t), - clean::PrimitiveItem(_) => sidebar_primitive(cx, it), - clean::UnionItem(ref u) => sidebar_union(cx, it, u), - clean::EnumItem(ref e) => sidebar_enum(cx, it, e), - clean::TypeAliasItem(ref t) => sidebar_type_alias(cx, it, t), - clean::ModuleItem(ref m) => vec![sidebar_module(&m.items)], - clean::ForeignTypeItem => sidebar_foreign_type(cx, it), - _ => vec![], - }; + let mut ids = IdMap::new(); + let mut blocks: Vec<LinkBlock<'_>> = docblock_toc(cx, it, &mut ids).into_iter().collect(); + match *it.kind { + clean::StructItem(ref s) => sidebar_struct(cx, it, s, &mut blocks), + clean::TraitItem(ref t) => sidebar_trait(cx, it, t, &mut blocks), + clean::PrimitiveItem(_) => sidebar_primitive(cx, it, &mut blocks), + clean::UnionItem(ref u) => sidebar_union(cx, it, u, &mut blocks), + clean::EnumItem(ref e) => sidebar_enum(cx, it, e, &mut blocks), + clean::TypeAliasItem(ref t) => sidebar_type_alias(cx, it, t, &mut blocks), + clean::ModuleItem(ref m) => { + blocks.push(sidebar_module(&m.items, &mut ids, ModuleLike::from(it))) + } + clean::ForeignTypeItem => sidebar_foreign_type(cx, it, &mut blocks), + _ => {} + } // The sidebar is designed to display sibling functions, modules and // other miscellaneous information. since there are lots of sibling // items (and that causes quadratic growth in large modules), @@ -113,15 +139,9 @@ pub(super) fn print_sidebar(cx: &Context<'_>, it: &clean::Item, buffer: &mut Buf // still, we don't move everything into JS because we want to preserve // as much HTML as possible in order to allow non-JS-enabled browsers // to navigate the documentation (though slightly inefficiently). - let (title_prefix, title) = if it.is_struct() - || it.is_trait() - || it.is_primitive() - || it.is_union() - || it.is_enum() - // crate title is displayed as part of logo lockup - || (it.is_mod() && !it.is_crate()) - || it.is_type_alias() - { + // + // crate title is displayed as part of logo lockup + let (title_prefix, title) = if !blocks.is_empty() && !it.is_crate() { ( match *it.kind { clean::ModuleItem(..) => "Module ", @@ -146,8 +166,15 @@ pub(super) fn print_sidebar(cx: &Context<'_>, it: &clean::Item, buffer: &mut Buf } else { "".into() }; - let sidebar = - Sidebar { title_prefix, title, is_mod: it.is_mod(), is_crate: it.is_crate(), blocks, path }; + let sidebar = Sidebar { + title_prefix, + title, + is_mod: it.is_mod(), + is_crate: it.is_crate(), + parent_is_crate: sidebar_path.len() == 1, + blocks, + path, + }; sidebar.render_into(buffer).unwrap(); } @@ -163,30 +190,80 @@ fn get_struct_fields_name<'a>(fields: &'a [clean::Item]) -> Vec<Link<'a>> { fields } +fn docblock_toc<'a>( + cx: &'a Context<'_>, + it: &'a clean::Item, + ids: &mut IdMap, +) -> Option<LinkBlock<'a>> { + let (toc, _) = MarkdownWithToc { + content: &it.doc_value(), + links: &it.links(cx), + ids, + error_codes: cx.shared.codes, + edition: cx.shared.edition(), + playground: &cx.shared.playground, + } + .into_parts(); + let links: Vec<Link<'_>> = toc + .entries + .into_iter() + .map(|entry| { + Link { + name_html: if entry.html == entry.name { None } else { Some(entry.html.into()) }, + name: entry.name.into(), + href: entry.id.into(), + children: entry + .children + .entries + .into_iter() + .map(|entry| Link { + name_html: if entry.html == entry.name { + None + } else { + Some(entry.html.into()) + }, + name: entry.name.into(), + href: entry.id.into(), + // Only a single level of nesting is shown here. + // Going the full six could break the layout, + // so we have to cut it off somewhere. + children: vec![], + }) + .collect(), + } + }) + .collect(); + if links.is_empty() { + None + } else { + Some(LinkBlock::new(Link::new("", "Sections"), "top-toc", links)) + } +} + fn sidebar_struct<'a>( cx: &'a Context<'_>, it: &'a clean::Item, s: &'a clean::Struct, -) -> Vec<LinkBlock<'a>> { + items: &mut Vec<LinkBlock<'a>>, +) { let fields = get_struct_fields_name(&s.fields); let field_name = match s.ctor_kind { Some(CtorKind::Fn) => Some("Tuple Fields"), None => Some("Fields"), _ => None, }; - let mut items = vec![]; if let Some(name) = field_name { items.push(LinkBlock::new(Link::new("fields", name), "structfield", fields)); } - sidebar_assoc_items(cx, it, &mut items); - items + sidebar_assoc_items(cx, it, items); } fn sidebar_trait<'a>( cx: &'a Context<'_>, it: &'a clean::Item, t: &'a clean::Trait, -) -> Vec<LinkBlock<'a>> { + blocks: &mut Vec<LinkBlock<'a>>, +) { fn filter_items<'a>( items: &'a [clean::Item], filt: impl Fn(&clean::Item) -> bool, @@ -223,19 +300,20 @@ fn sidebar_trait<'a>( foreign_impls.sort(); } - let mut blocks: Vec<LinkBlock<'_>> = [ - ("required-associated-types", "Required Associated Types", req_assoc), - ("provided-associated-types", "Provided Associated Types", prov_assoc), - ("required-associated-consts", "Required Associated Constants", req_assoc_const), - ("provided-associated-consts", "Provided Associated Constants", prov_assoc_const), - ("required-methods", "Required Methods", req_method), - ("provided-methods", "Provided Methods", prov_method), - ("foreign-impls", "Implementations on Foreign Types", foreign_impls), - ] - .into_iter() - .map(|(id, title, items)| LinkBlock::new(Link::new(id, title), "", items)) - .collect(); - sidebar_assoc_items(cx, it, &mut blocks); + blocks.extend( + [ + ("required-associated-types", "Required Associated Types", req_assoc), + ("provided-associated-types", "Provided Associated Types", prov_assoc), + ("required-associated-consts", "Required Associated Constants", req_assoc_const), + ("provided-associated-consts", "Provided Associated Constants", prov_assoc_const), + ("required-methods", "Required Methods", req_method), + ("provided-methods", "Provided Methods", prov_method), + ("foreign-impls", "Implementations on Foreign Types", foreign_impls), + ] + .into_iter() + .map(|(id, title, items)| LinkBlock::new(Link::new(id, title), "", items)), + ); + sidebar_assoc_items(cx, it, blocks); if !t.is_object_safe(cx.tcx()) { blocks.push(LinkBlock::forced( @@ -251,20 +329,17 @@ fn sidebar_trait<'a>( "impl-auto", )); } - blocks } -fn sidebar_primitive<'a>(cx: &'a Context<'_>, it: &'a clean::Item) -> Vec<LinkBlock<'a>> { +fn sidebar_primitive<'a>(cx: &'a Context<'_>, it: &'a clean::Item, items: &mut Vec<LinkBlock<'a>>) { if it.name.map(|n| n.as_str() != "reference").unwrap_or(false) { - let mut items = vec![]; - sidebar_assoc_items(cx, it, &mut items); - items + sidebar_assoc_items(cx, it, items); } else { let shared = Rc::clone(&cx.shared); let (concrete, synthetic, blanket_impl) = super::get_filtered_impls_for_reference(&shared, it); - sidebar_render_assoc_items(cx, &mut IdMap::new(), concrete, synthetic, blanket_impl).into() + sidebar_render_assoc_items(cx, &mut IdMap::new(), concrete, synthetic, blanket_impl, items); } } @@ -272,8 +347,8 @@ fn sidebar_type_alias<'a>( cx: &'a Context<'_>, it: &'a clean::Item, t: &'a clean::TypeAlias, -) -> Vec<LinkBlock<'a>> { - let mut items = vec![]; + items: &mut Vec<LinkBlock<'a>>, +) { if let Some(inner_type) = &t.inner_type { items.push(LinkBlock::forced(Link::new("aliased-type", "Aliased type"), "type")); match inner_type { @@ -295,19 +370,18 @@ fn sidebar_type_alias<'a>( } } } - sidebar_assoc_items(cx, it, &mut items); - items + sidebar_assoc_items(cx, it, items); } fn sidebar_union<'a>( cx: &'a Context<'_>, it: &'a clean::Item, u: &'a clean::Union, -) -> Vec<LinkBlock<'a>> { + items: &mut Vec<LinkBlock<'a>>, +) { let fields = get_struct_fields_name(&u.fields); - let mut items = vec![LinkBlock::new(Link::new("fields", "Fields"), "structfield", fields)]; - sidebar_assoc_items(cx, it, &mut items); - items + items.push(LinkBlock::new(Link::new("fields", "Fields"), "structfield", fields)); + sidebar_assoc_items(cx, it, items); } /// Adds trait implementations into the blocks of links @@ -346,21 +420,22 @@ fn sidebar_assoc_items<'a>( methods.sort(); } - let mut deref_methods = Vec::new(); - let [concrete, synthetic, blanket] = if v.iter().any(|i| i.inner_impl().trait_.is_some()) { + let mut blocks = vec![ + LinkBlock::new( + Link::new("implementations", "Associated Constants"), + "associatedconstant", + assoc_consts, + ), + LinkBlock::new(Link::new("implementations", "Methods"), "method", methods), + ]; + + if v.iter().any(|i| i.inner_impl().trait_.is_some()) { if let Some(impl_) = v.iter().find(|i| i.trait_did() == cx.tcx().lang_items().deref_trait()) { let mut derefs = DefIdSet::default(); derefs.insert(did); - sidebar_deref_methods( - cx, - &mut deref_methods, - impl_, - v, - &mut derefs, - &mut used_links, - ); + sidebar_deref_methods(cx, &mut blocks, impl_, v, &mut derefs, &mut used_links); } let (synthetic, concrete): (Vec<&Impl>, Vec<&Impl>) = @@ -368,21 +443,15 @@ fn sidebar_assoc_items<'a>( let (blanket_impl, concrete): (Vec<&Impl>, Vec<&Impl>) = concrete.into_iter().partition::<Vec<_>, _>(|i| i.inner_impl().kind.is_blanket()); - sidebar_render_assoc_items(cx, &mut id_map, concrete, synthetic, blanket_impl) - } else { - std::array::from_fn(|_| LinkBlock::new(Link::empty(), "", vec![])) - }; - - let mut blocks = vec![ - LinkBlock::new( - Link::new("implementations", "Associated Constants"), - "associatedconstant", - assoc_consts, - ), - LinkBlock::new(Link::new("implementations", "Methods"), "method", methods), - ]; - blocks.append(&mut deref_methods); - blocks.extend([concrete, synthetic, blanket]); + sidebar_render_assoc_items( + cx, + &mut id_map, + concrete, + synthetic, + blanket_impl, + &mut blocks, + ); + } links.append(&mut blocks); } } @@ -472,7 +541,8 @@ fn sidebar_enum<'a>( cx: &'a Context<'_>, it: &'a clean::Item, e: &'a clean::Enum, -) -> Vec<LinkBlock<'a>> { + items: &mut Vec<LinkBlock<'a>>, +) { let mut variants = e .variants() .filter_map(|v| v.name) @@ -480,24 +550,37 @@ fn sidebar_enum<'a>( .collect::<Vec<_>>(); variants.sort_unstable(); - let mut items = vec![LinkBlock::new(Link::new("variants", "Variants"), "variant", variants)]; - sidebar_assoc_items(cx, it, &mut items); - items + items.push(LinkBlock::new(Link::new("variants", "Variants"), "variant", variants)); + sidebar_assoc_items(cx, it, items); } pub(crate) fn sidebar_module_like( item_sections_in_use: FxHashSet<ItemSection>, + ids: &mut IdMap, + module_like: ModuleLike, ) -> LinkBlock<'static> { - let item_sections = ItemSection::ALL + let item_sections: Vec<Link<'_>> = ItemSection::ALL .iter() .copied() .filter(|sec| item_sections_in_use.contains(sec)) - .map(|sec| Link::new(sec.id(), sec.name())) + .map(|sec| Link::new(ids.derive(sec.id()), sec.name())) .collect(); - LinkBlock::new(Link::empty(), "", item_sections) + let header = if let Some(first_section) = item_sections.get(0) { + Link::new( + first_section.href.to_owned(), + if module_like.is_crate() { "Crate Items" } else { "Module Items" }, + ) + } else { + Link::empty() + }; + LinkBlock::new(header, "", item_sections) } -fn sidebar_module(items: &[clean::Item]) -> LinkBlock<'static> { +fn sidebar_module( + items: &[clean::Item], + ids: &mut IdMap, + module_like: ModuleLike, +) -> LinkBlock<'static> { let item_sections_in_use: FxHashSet<_> = items .iter() .filter(|it| { @@ -518,13 +601,15 @@ fn sidebar_module(items: &[clean::Item]) -> LinkBlock<'static> { .map(|it| item_ty_to_section(it.type_())) .collect(); - sidebar_module_like(item_sections_in_use) + sidebar_module_like(item_sections_in_use, ids, module_like) } -fn sidebar_foreign_type<'a>(cx: &'a Context<'_>, it: &'a clean::Item) -> Vec<LinkBlock<'a>> { - let mut items = vec![]; - sidebar_assoc_items(cx, it, &mut items); - items +fn sidebar_foreign_type<'a>( + cx: &'a Context<'_>, + it: &'a clean::Item, + items: &mut Vec<LinkBlock<'a>>, +) { + sidebar_assoc_items(cx, it, items); } /// Renders the trait implementations for this type @@ -534,7 +619,8 @@ fn sidebar_render_assoc_items( concrete: Vec<&Impl>, synthetic: Vec<&Impl>, blanket_impl: Vec<&Impl>, -) -> [LinkBlock<'static>; 3] { + items: &mut Vec<LinkBlock<'_>>, +) { let format_impls = |impls: Vec<&Impl>, id_map: &mut IdMap| { let mut links = FxHashSet::default(); @@ -559,7 +645,7 @@ fn sidebar_render_assoc_items( let concrete = format_impls(concrete, id_map); let synthetic = format_impls(synthetic, id_map); let blanket = format_impls(blanket_impl, id_map); - [ + items.extend([ LinkBlock::new( Link::new("trait-implementations", "Trait Implementations"), "trait-implementation", @@ -575,7 +661,7 @@ fn sidebar_render_assoc_items( "blanket-implementation", blanket, ), - ] + ]); } fn get_next_url(used_links: &mut FxHashSet<String>, url: String) -> String { diff --git a/src/librustdoc/html/static/css/rustdoc.css b/src/librustdoc/html/static/css/rustdoc.css index 1e483062289..271de1b1ccf 100644 --- a/src/librustdoc/html/static/css/rustdoc.css +++ b/src/librustdoc/html/static/css/rustdoc.css @@ -568,12 +568,16 @@ img { width: 48px; } -ul.block, .block li { +ul.block, .block li, .block ul { padding: 0; margin: 0; list-style: none; } +.block ul a { + padding-left: 1rem; +} + .sidebar-elems a, .sidebar > h2 a { display: block; @@ -585,6 +589,14 @@ ul.block, .block li { background-clip: border-box; } +.hide-toc #rustdoc-toc, .hide-toc .in-crate { + display: none; +} + +.hide-modnav #rustdoc-modnav { + display: none; +} + .sidebar h2 { text-wrap: balance; overflow-wrap: anywhere; diff --git a/src/librustdoc/html/static/js/main.js b/src/librustdoc/html/static/js/main.js index c3e219f2c87..0291b6ed6f5 100644 --- a/src/librustdoc/html/static/js/main.js +++ b/src/librustdoc/html/static/js/main.js @@ -499,7 +499,7 @@ function preLoadCss(cssUrl) { if (!window.SIDEBAR_ITEMS) { return; } - const sidebar = document.getElementsByClassName("sidebar-elems")[0]; + const sidebar = document.getElementById("rustdoc-modnav"); /** * Append to the sidebar a "block" of links - a heading along with a list (`<ul>`) of items. @@ -885,7 +885,7 @@ function preLoadCss(cssUrl) { if (!window.ALL_CRATES) { return; } - const sidebarElems = document.getElementsByClassName("sidebar-elems")[0]; + const sidebarElems = document.getElementById("rustdoc-modnav"); if (!sidebarElems) { return; } diff --git a/src/librustdoc/html/static/js/settings.js b/src/librustdoc/html/static/js/settings.js index 2b42fbebb80..c52a19ef987 100644 --- a/src/librustdoc/html/static/js/settings.js +++ b/src/librustdoc/html/static/js/settings.js @@ -36,6 +36,20 @@ removeClass(document.documentElement, "hide-sidebar"); } break; + case "hide-toc": + if (value === true) { + addClass(document.documentElement, "hide-toc"); + } else { + removeClass(document.documentElement, "hide-toc"); + } + break; + case "hide-modnav": + if (value === true) { + addClass(document.documentElement, "hide-modnav"); + } else { + removeClass(document.documentElement, "hide-modnav"); + } + break; } } @@ -102,6 +116,11 @@ let output = ""; for (const setting of settings) { + if (setting === "hr") { + output += "<hr>"; + continue; + } + const js_data_name = setting["js_name"]; const setting_name = setting["name"]; @@ -199,6 +218,16 @@ "default": false, }, { + "name": "Hide table of contents", + "js_name": "hide-toc", + "default": false, + }, + { + "name": "Hide module navigation", + "js_name": "hide-modnav", + "default": false, + }, + { "name": "Disable keyboard shortcuts", "js_name": "disable-shortcuts", "default": false, diff --git a/src/librustdoc/html/static/js/storage.js b/src/librustdoc/html/static/js/storage.js index 4a27ca92fff..d75fb7a7fb5 100644 --- a/src/librustdoc/html/static/js/storage.js +++ b/src/librustdoc/html/static/js/storage.js @@ -196,16 +196,21 @@ updateTheme(); // This needs to be done here because this JS is render-blocking, // so that the sidebar doesn't "jump" after appearing on screen. // The user interaction to change this is set up in main.js. +// +// At this point in page load, `document.body` is not available yet. +// Set a class on the `<html>` element instead. if (getSettingValue("source-sidebar-show") === "true") { - // At this point in page load, `document.body` is not available yet. - // Set a class on the `<html>` element instead. addClass(document.documentElement, "src-sidebar-expanded"); } if (getSettingValue("hide-sidebar") === "true") { - // At this point in page load, `document.body` is not available yet. - // Set a class on the `<html>` element instead. addClass(document.documentElement, "hide-sidebar"); } +if (getSettingValue("hide-toc") === "true") { + addClass(document.documentElement, "hide-toc"); +} +if (getSettingValue("hide-modnav") === "true") { + addClass(document.documentElement, "hide-modnav"); +} function updateSidebarWidth() { const desktopSidebarWidth = getSettingValue("desktop-sidebar-width"); if (desktopSidebarWidth && desktopSidebarWidth !== "null") { diff --git a/src/librustdoc/html/templates/sidebar.html b/src/librustdoc/html/templates/sidebar.html index 0990c2716b8..fccf65cbefc 100644 --- a/src/librustdoc/html/templates/sidebar.html +++ b/src/librustdoc/html/templates/sidebar.html @@ -1,8 +1,3 @@ -{% if !title.is_empty() %} - <h2 class="location"> {# #} - <a href="#">{{title_prefix}}{{title|wrapped|safe}}</a> {# #} - </h2> -{% endif %} <div class="sidebar-elems"> {% if is_crate %} <ul class="block"> {# #} @@ -11,18 +6,46 @@ {% endif %} {% if self.should_render_blocks() %} - <section> + <section id="rustdoc-toc"> + {% if !title.is_empty() %} + <h2 class="location"> {# #} + <a href="#">{{title_prefix}}{{title|wrapped|safe}}</a> {# #} + </h2> + {% endif %} {% for block in blocks %} {% if block.should_render() %} {% if !block.heading.name.is_empty() %} - <h3><a href="#{{block.heading.href|safe}}"> {# #} - {{block.heading.name|wrapped|safe}} {# #} - </a></h3> {# #} + <h3> {# #} + <a href="#{{block.heading.href|safe}}">{{block.heading.name|wrapped|safe}}</a> {# #} + </h3> {% endif %} {% if !block.links.is_empty() %} <ul class="block{% if !block.class.is_empty() +%} {{+block.class}}{% endif %}"> {% for link in block.links %} - <li><a href="#{{link.href|safe}}">{{link.name}}</a></li> + <li> {# #} + <a href="#{{link.href|safe}}" title="{{link.name}}"> + {% match link.name_html %} + {% when Some with (html) %} + {{html|safe}} + {% else %} + {{link.name}} + {% endmatch %} + </a> {# #} + {% if !link.children.is_empty() %} + <ul> + {% for child in link.children %} + <li><a href="#{{child.href|safe}}" title="{{child.name}}"> + {% match child.name_html %} + {% when Some with (html) %} + {{html|safe}} + {% else %} + {{child.name}} + {% endmatch %} + </a></li> + {% endfor %} + </ul> + {% endif %} + </li> {% endfor %} </ul> {% endif %} @@ -30,7 +53,11 @@ {% endfor %} </section> {% endif %} + <div id="rustdoc-modnav"> {% if !path.is_empty() %} - <h2><a href="{% if is_mod %}../{% endif %}index.html">In {{+ path|wrapped|safe}}</a></h2> + <h2{% if parent_is_crate +%} class="in-crate"{% endif %}> {# #} + <a href="{% if is_mod %}../{% endif %}index.html">In {{+ path|wrapped|safe}}</a> {# #} + </h2> {% endif %} + </div> {# #} </div> diff --git a/src/librustdoc/html/toc.rs b/src/librustdoc/html/toc.rs index a12c2a6a16c..7fdce41a634 100644 --- a/src/librustdoc/html/toc.rs +++ b/src/librustdoc/html/toc.rs @@ -1,4 +1,5 @@ //! Table-of-contents creation. +use crate::html::escape::Escape; /// A (recursive) table of contents #[derive(Debug, PartialEq)] @@ -16,7 +17,7 @@ pub(crate) struct Toc { /// ### A /// ## B /// ``` - entries: Vec<TocEntry>, + pub(crate) entries: Vec<TocEntry>, } impl Toc { @@ -27,11 +28,16 @@ impl Toc { #[derive(Debug, PartialEq)] pub(crate) struct TocEntry { - level: u32, - sec_number: String, - name: String, - id: String, - children: Toc, + pub(crate) level: u32, + pub(crate) sec_number: String, + // name is a plain text header that works in a `title` tag + // html includes `<code>` tags + // the tooltip is used so that, when a toc is truncated, + // you can mouse over it to see the whole thing + pub(crate) name: String, + pub(crate) html: String, + pub(crate) id: String, + pub(crate) children: Toc, } /// Progressive construction of a table of contents. @@ -115,7 +121,7 @@ impl TocBuilder { /// Push a level `level` heading into the appropriate place in the /// hierarchy, returning a string containing the section number in /// `<num>.<num>.<num>` format. - pub(crate) fn push(&mut self, level: u32, name: String, id: String) -> &str { + pub(crate) fn push(&mut self, level: u32, name: String, html: String, id: String) -> &str { assert!(level >= 1); // collapse all previous sections into their parents until we @@ -149,6 +155,7 @@ impl TocBuilder { self.chain.push(TocEntry { level, name, + html, sec_number, id, children: Toc { entries: Vec::new() }, @@ -170,10 +177,11 @@ impl Toc { // recursively format this table of contents let _ = write!( v, - "\n<li><a href=\"#{id}\">{num} {name}</a>", + "\n<li><a href=\"#{id}\" title=\"{name}\">{num} {html}</a>", id = entry.id, num = entry.sec_number, - name = entry.name + name = Escape(&entry.name), + html = &entry.html, ); entry.children.print_inner(&mut *v); v.push_str("</li>"); diff --git a/src/librustdoc/html/toc/tests.rs b/src/librustdoc/html/toc/tests.rs index 014f346862b..81aca737baf 100644 --- a/src/librustdoc/html/toc/tests.rs +++ b/src/librustdoc/html/toc/tests.rs @@ -9,7 +9,10 @@ fn builder_smoke() { // there's been no macro mistake. macro_rules! push { ($level: expr, $name: expr) => { - assert_eq!(builder.push($level, $name.to_string(), "".to_string()), $name); + assert_eq!( + builder.push($level, $name.to_string(), $name.to_string(), "".to_string()), + $name + ); }; } push!(2, "0.1"); @@ -48,6 +51,7 @@ fn builder_smoke() { TocEntry { level: $level, name: $name.to_string(), + html: $name.to_string(), sec_number: $name.to_string(), id: "".to_string(), children: toc!($($sub),*) diff --git a/src/librustdoc/markdown.rs b/src/librustdoc/markdown.rs index a98f81d011e..581ebbbe58d 100644 --- a/src/librustdoc/markdown.rs +++ b/src/librustdoc/markdown.rs @@ -72,6 +72,7 @@ pub(crate) fn render<P: AsRef<Path>>( let text = if !options.markdown_no_toc { MarkdownWithToc { content: text, + links: &[], ids: &mut ids, error_codes, edition, diff --git a/src/tools/build_helper/src/git.rs b/src/tools/build_helper/src/git.rs index da84569c778..cc48a8964a3 100644 --- a/src/tools/build_helper/src/git.rs +++ b/src/tools/build_helper/src/git.rs @@ -159,3 +159,37 @@ pub fn get_git_untracked_files( .collect(); Ok(Some(files)) } + +/// Print a warning if the branch returned from `updated_master_branch` is old +/// +/// For certain configurations of git repository, this remote will not be +/// updated when running `git pull`. +/// +/// This can result in formatting thousands of files instead of a dozen, +/// so we should warn the user something is wrong. +pub fn warn_old_master_branch( + config: &GitConfig<'_>, + git_dir: &Path, +) -> Result<(), Box<dyn std::error::Error>> { + use std::time::Duration; + const WARN_AFTER: Duration = Duration::from_secs(60 * 60 * 24 * 10); + let updated_master = updated_master_branch(config, Some(git_dir))?; + let branch_path = git_dir.join(".git/refs/remotes").join(&updated_master); + match std::fs::metadata(branch_path) { + Ok(meta) => { + if meta.modified()?.elapsed()? > WARN_AFTER { + eprintln!("warning: {updated_master} has not been updated in 10 days"); + } else { + return Ok(()); + } + } + Err(err) => { + eprintln!("warning: unable to check if {updated_master} is old due to error: {err}") + } + } + eprintln!( + "warning: {updated_master} is used to determine if files have been modified\n\ + warning: if it is not updated, this may cause files to be needlessly reformatted" + ); + Ok(()) +} diff --git a/src/tools/compiletest/src/command-list.rs b/src/tools/compiletest/src/command-list.rs index a559d6f81a2..865aa76ddb0 100644 --- a/src/tools/compiletest/src/command-list.rs +++ b/src/tools/compiletest/src/command-list.rs @@ -136,6 +136,7 @@ const KNOWN_DIRECTIVE_NAMES: &[&str] = &[ "min-llvm-version", "min-system-llvm-version", "needs-asm-support", + "needs-deterministic-layouts", "needs-dlltool", "needs-dynamic-linking", "needs-force-clang-based-tests", diff --git a/src/tools/compiletest/src/common.rs b/src/tools/compiletest/src/common.rs index 5831f7c3cf2..773d795f75a 100644 --- a/src/tools/compiletest/src/common.rs +++ b/src/tools/compiletest/src/common.rs @@ -274,6 +274,9 @@ pub struct Config { /// Flags to pass to the compiler when building for the target pub target_rustcflags: Vec<String>, + /// Whether the compiler and stdlib has been built with randomized struct layouts + pub rust_randomized_layout: bool, + /// Whether tests should be optimized by default. Individual test-suites and test files may /// override this setting. pub optimize_tests: bool, diff --git a/src/tools/compiletest/src/header/needs.rs b/src/tools/compiletest/src/header/needs.rs index 72b1b9c6d48..e903f60ceb3 100644 --- a/src/tools/compiletest/src/header/needs.rs +++ b/src/tools/compiletest/src/header/needs.rs @@ -135,6 +135,11 @@ pub(super) fn handle_needs( ignore_reason: "ignored on targets without PIC relocation model", }, Need { + name: "needs-deterministic-layouts", + condition: !config.rust_randomized_layout, + ignore_reason: "ignored when randomizing layouts", + }, + Need { name: "needs-wasmtime", condition: config.runner.as_ref().is_some_and(|r| r.contains("wasmtime")), ignore_reason: "ignored when wasmtime runner is not available", diff --git a/src/tools/compiletest/src/lib.rs b/src/tools/compiletest/src/lib.rs index 7018362af54..5402e69bc66 100644 --- a/src/tools/compiletest/src/lib.rs +++ b/src/tools/compiletest/src/lib.rs @@ -99,6 +99,11 @@ pub fn parse_config(args: Vec<String>) -> Config { ) .optmulti("", "host-rustcflags", "flags to pass to rustc for host", "FLAGS") .optmulti("", "target-rustcflags", "flags to pass to rustc for target", "FLAGS") + .optflag( + "", + "rust-randomized-layout", + "set this when rustc/stdlib were compiled with randomized layouts", + ) .optflag("", "optimize-tests", "run tests with optimizations enabled") .optflag("", "verbose", "run tests verbosely, showing all output") .optflag( @@ -286,6 +291,7 @@ pub fn parse_config(args: Vec<String>) -> Config { host_rustcflags: matches.opt_strs("host-rustcflags"), target_rustcflags: matches.opt_strs("target-rustcflags"), optimize_tests: matches.opt_present("optimize-tests"), + rust_randomized_layout: matches.opt_present("rust-randomized-layout"), target, host: opt_str2(matches.opt_str("host")), cdb, diff --git a/src/tools/miri/tests/pass/dyn-arbitrary-self.rs b/src/tools/miri/tests/pass/dyn-arbitrary-self.rs index 6be13b155f4..dc2b9e4491b 100644 --- a/src/tools/miri/tests/pass/dyn-arbitrary-self.rs +++ b/src/tools/miri/tests/pass/dyn-arbitrary-self.rs @@ -1,6 +1,6 @@ //@revisions: stack tree //@[tree]compile-flags: -Zmiri-tree-borrows -#![feature(arbitrary_self_types, unsize, coerce_unsized, dispatch_from_dyn)] +#![feature(arbitrary_self_types_pointers, unsize, coerce_unsized, dispatch_from_dyn)] #![feature(rustc_attrs)] fn pin_box_dyn() { diff --git a/tests/assembly/targets/targets-elf.rs b/tests/assembly/targets/targets-elf.rs index b0c5eec1fe4..c8610e03939 100644 --- a/tests/assembly/targets/targets-elf.rs +++ b/tests/assembly/targets/targets-elf.rs @@ -129,6 +129,9 @@ //@ revisions: armv7_linux_androideabi //@ [armv7_linux_androideabi] compile-flags: --target armv7-linux-androideabi //@ [armv7_linux_androideabi] needs-llvm-components: arm +//@ revisions: armv7_rtems_eabihf +//@ [armv7_rtems_eabihf] compile-flags: --target armv7-rtems-eabihf +//@ [armv7_rtems_eabihf] needs-llvm-components: arm //@ revisions: armv7_sony_vita_newlibeabihf //@ [armv7_sony_vita_newlibeabihf] compile-flags: --target armv7-sony-vita-newlibeabihf //@ [armv7_sony_vita_newlibeabihf] needs-llvm-components: arm diff --git a/tests/codegen/issues/issue-86106.rs b/tests/codegen/issues/issue-86106.rs index e8164c5c380..8d1ce116d26 100644 --- a/tests/codegen/issues/issue-86106.rs +++ b/tests/codegen/issues/issue-86106.rs @@ -1,5 +1,6 @@ //@ only-64bit llvm appears to use stores instead of memset on 32bit //@ compile-flags: -C opt-level=3 -Z merge-functions=disabled +//@ needs-deterministic-layouts // The below two functions ensure that both `String::new()` and `"".to_string()` // produce the identical code. diff --git a/tests/codegen/mem-replace-big-type.rs b/tests/codegen/mem-replace-big-type.rs index d5eadda4469..e62f1a953df 100644 --- a/tests/codegen/mem-replace-big-type.rs +++ b/tests/codegen/mem-replace-big-type.rs @@ -5,6 +5,7 @@ //@ compile-flags: -C no-prepopulate-passes -Zinline-mir=no //@ ignore-debug: precondition checks in ptr::read make them a bad candidate for MIR inlining +//@ needs-deterministic-layouts #![crate_type = "lib"] diff --git a/tests/codegen/slice-iter-nonnull.rs b/tests/codegen/slice-iter-nonnull.rs index c960688b00c..eda807d3682 100644 --- a/tests/codegen/slice-iter-nonnull.rs +++ b/tests/codegen/slice-iter-nonnull.rs @@ -1,4 +1,5 @@ //@ compile-flags: -O +//@ needs-deterministic-layouts #![crate_type = "lib"] #![feature(exact_size_is_empty)] diff --git a/tests/codegen/vecdeque-drain.rs b/tests/codegen/vecdeque-drain.rs index 31fcf035f11..fca1ed367e6 100644 --- a/tests/codegen/vecdeque-drain.rs +++ b/tests/codegen/vecdeque-drain.rs @@ -1,6 +1,7 @@ // Check that draining at the front or back doesn't copy memory. //@ compile-flags: -O +//@ needs-deterministic-layouts //@ ignore-debug: FIXME: checks for call detect scoped noalias metadata #![crate_type = "lib"] diff --git a/tests/mir-opt/building/receiver_ptr_mutability.rs b/tests/mir-opt/building/receiver_ptr_mutability.rs index 4bb3b4cade5..1ddb8b71a5a 100644 --- a/tests/mir-opt/building/receiver_ptr_mutability.rs +++ b/tests/mir-opt/building/receiver_ptr_mutability.rs @@ -1,7 +1,7 @@ // skip-filecheck // EMIT_MIR receiver_ptr_mutability.main.built.after.mir -#![feature(arbitrary_self_types)] +#![feature(arbitrary_self_types_pointers)] struct Test {} diff --git a/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.rs b/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.rs index c92424f2983..08347f71b42 100644 --- a/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.rs +++ b/tests/mir-opt/pre-codegen/issue_117368_print_invalid_constant.rs @@ -1,3 +1,4 @@ +//@needs-deterministic-layouts // Verify that we do not ICE when printing an invalid constant. // EMIT_MIR_FOR_EACH_BIT_WIDTH // EMIT_MIR_FOR_EACH_PANIC_STRATEGY diff --git a/tests/rustdoc-gui/sidebar-modnav-position.goml b/tests/rustdoc-gui/sidebar-modnav-position.goml new file mode 100644 index 00000000000..eb86d118ab2 --- /dev/null +++ b/tests/rustdoc-gui/sidebar-modnav-position.goml @@ -0,0 +1,44 @@ +// Verifies that, when TOC is hidden, modnav is always in exactly the same spot +// This is driven by a reasonably common use case: +// +// - There are three or more items that might meet my needs. +// - I open the first one, decide it's not what I want, switch to the second one using the sidebar. +// - The second one also doesn't meet my needs, so I switch to the third. +// - The third also doesn't meet my needs, so... +// +// because the sibling module nav is in exactly the same place every time, +// it's very easy to find and switch between pages that way. + +go-to: "file://" + |DOC_PATH| + "/test_docs/enum.WhoLetTheDogOut.html" +show-text: true +set-local-storage: {"rustdoc-hide-toc": "true"} + +define-function: ( + "check-positions", + [url], + block { + go-to: "file://" + |DOC_PATH| + |url| + // Checking results colors. + assert-position: ("#rustdoc-modnav > h2", {"x": |h2_x|, "y": |h2_y|}) + assert-position: ( + "#rustdoc-modnav > ul:first-of-type > li:first-of-type", + {"x": |x|, "y": |y|} + ) + }, +) + +// First, at test_docs root +go-to: "file://" + |DOC_PATH| + "/test_docs/enum.WhoLetTheDogOut.html" +store-position: ("#rustdoc-modnav > h2", {"x": h2_x, "y": h2_y}) +store-position: ("#rustdoc-modnav > ul:first-of-type > li:first-of-type", {"x": x, "y": y}) +call-function: ("check-positions", {"url": "/test_docs/enum.WhoLetTheDogOut.html"}) +call-function: ("check-positions", {"url": "/test_docs/struct.StructWithPublicUndocumentedFields.html"}) +call-function: ("check-positions", {"url": "/test_docs/codeblock_sub/index.html"}) + +// Now in a submodule +go-to: "file://" + |DOC_PATH| + "/test_docs/fields/struct.Struct.html" +store-position: ("#rustdoc-modnav > h2", {"x": h2_x, "y": h2_y}) +store-position: ("#rustdoc-modnav > ul:first-of-type > li:first-of-type", {"x": x, "y": y}) +call-function: ("check-positions", {"url": "/test_docs/fields/struct.Struct.html"}) +call-function: ("check-positions", {"url": "/test_docs/fields/union.Union.html"}) +call-function: ("check-positions", {"url": "/test_docs/fields/enum.Enum.html"}) diff --git a/tests/rustdoc-gui/sidebar.goml b/tests/rustdoc-gui/sidebar.goml index e499c159c6c..7794cdbe9e2 100644 --- a/tests/rustdoc-gui/sidebar.goml +++ b/tests/rustdoc-gui/sidebar.goml @@ -118,7 +118,7 @@ assert-false: ".sidebar-elems > .crate" go-to: "./module/index.html" assert-property: (".sidebar", {"clientWidth": "200"}) assert-text: (".sidebar > .sidebar-crate > h2 > a", "lib2") -assert-text: (".sidebar > .location", "Module module") +assert-text: (".sidebar .location", "Module module") assert-count: (".sidebar .location", 1) assert-text: (".sidebar-elems ul.block > li.current > a", "module") // Module page requires three headings: @@ -126,8 +126,8 @@ assert-text: (".sidebar-elems ul.block > li.current > a", "module") // - Module name, followed by TOC for module headings // - "In crate [name]" parent pointer, followed by sibling navigation assert-count: (".sidebar h2", 3) -assert-text: (".sidebar > .sidebar-elems > h2", "In crate lib2") -assert-property: (".sidebar > .sidebar-elems > h2 > a", { +assert-text: (".sidebar > .sidebar-elems > #rustdoc-modnav > h2", "In crate lib2") +assert-property: (".sidebar > .sidebar-elems > #rustdoc-modnav > h2 > a", { "href": "/lib2/index.html", }, ENDS_WITH) // We check that we don't have the crate list. @@ -136,9 +136,9 @@ assert-false: ".sidebar-elems > .crate" go-to: "./sub_module/sub_sub_module/index.html" assert-property: (".sidebar", {"clientWidth": "200"}) assert-text: (".sidebar > .sidebar-crate > h2 > a", "lib2") -assert-text: (".sidebar > .location", "Module sub_sub_module") -assert-text: (".sidebar > .sidebar-elems > h2", "In lib2::module::sub_module") -assert-property: (".sidebar > .sidebar-elems > h2 > a", { +assert-text: (".sidebar .location", "Module sub_sub_module") +assert-text: (".sidebar > .sidebar-elems > #rustdoc-modnav > h2", "In lib2::module::sub_module") +assert-property: (".sidebar > .sidebar-elems > #rustdoc-modnav > h2 > a", { "href": "/module/sub_module/index.html", }, ENDS_WITH) assert-text: (".sidebar-elems ul.block > li.current > a", "sub_sub_module") @@ -198,3 +198,36 @@ assert-position-false: (".sidebar-crate > h2 > a", {"x": -3}) // when line-wrapped, see that it becomes flush-left again drag-and-drop: ((205, 100), (108, 100)) assert-position: (".sidebar-crate > h2 > a", {"x": -3}) + +// Configuration option to show TOC in sidebar. +set-local-storage: {"rustdoc-hide-toc": "true"} +go-to: "file://" + |DOC_PATH| + "/test_docs/enum.WhoLetTheDogOut.html" +assert-css: ("#rustdoc-toc", {"display": "none"}) +assert-css: (".sidebar .in-crate", {"display": "none"}) +set-local-storage: {"rustdoc-hide-toc": "false"} +go-to: "file://" + |DOC_PATH| + "/test_docs/enum.WhoLetTheDogOut.html" +assert-css: ("#rustdoc-toc", {"display": "block"}) +assert-css: (".sidebar .in-crate", {"display": "block"}) + +set-local-storage: {"rustdoc-hide-modnav": "true"} +go-to: "file://" + |DOC_PATH| + "/test_docs/enum.WhoLetTheDogOut.html" +assert-css: ("#rustdoc-modnav", {"display": "none"}) +set-local-storage: {"rustdoc-hide-modnav": "false"} +go-to: "file://" + |DOC_PATH| + "/test_docs/enum.WhoLetTheDogOut.html" +assert-css: ("#rustdoc-modnav", {"display": "block"}) + +set-local-storage: {"rustdoc-hide-toc": "true"} +go-to: "file://" + |DOC_PATH| + "/test_docs/index.html" +assert-css: ("#rustdoc-toc", {"display": "none"}) +assert-false: ".sidebar .in-crate" +set-local-storage: {"rustdoc-hide-toc": "false"} +go-to: "file://" + |DOC_PATH| + "/test_docs/index.html" +assert-css: ("#rustdoc-toc", {"display": "block"}) +assert-false: ".sidebar .in-crate" + +set-local-storage: {"rustdoc-hide-modnav": "true"} +go-to: "file://" + |DOC_PATH| + "/test_docs/index.html" +assert-css: ("#rustdoc-modnav", {"display": "none"}) +set-local-storage: {"rustdoc-hide-modnav": "false"} +go-to: "file://" + |DOC_PATH| + "/test_docs/index.html" +assert-css: ("#rustdoc-modnav", {"display": "block"}) diff --git a/tests/rustdoc/sidebar/module.rs b/tests/rustdoc/sidebar/module.rs new file mode 100644 index 00000000000..b5bcb9f232c --- /dev/null +++ b/tests/rustdoc/sidebar/module.rs @@ -0,0 +1,16 @@ +#![crate_name = "foo"] + +//@ has 'foo/index.html' +//@ has - '//section[@id="rustdoc-toc"]/h3' 'Crate Items' + +//@ has 'foo/bar/index.html' +//@ has - '//section[@id="rustdoc-toc"]/h3' 'Module Items' +pub mod bar { + //@ has 'foo/bar/struct.Baz.html' + //@ !has - '//section[@id="rustdoc-toc"]/h3' 'Module Items' + pub struct Baz; +} + +//@ has 'foo/baz/index.html' +//@ !has - '//section[@id="rustdoc-toc"]/h3' 'Module Items' +pub mod baz {} diff --git a/tests/rustdoc/sidebar-all-page.rs b/tests/rustdoc/sidebar/sidebar-all-page.rs index 1f97a414048..1f97a414048 100644 --- a/tests/rustdoc/sidebar-all-page.rs +++ b/tests/rustdoc/sidebar/sidebar-all-page.rs diff --git a/tests/rustdoc/sidebar-items.rs b/tests/rustdoc/sidebar/sidebar-items.rs index f3812143a7d..f3812143a7d 100644 --- a/tests/rustdoc/sidebar-items.rs +++ b/tests/rustdoc/sidebar/sidebar-items.rs diff --git a/tests/rustdoc/sidebar-link-generation.rs b/tests/rustdoc/sidebar/sidebar-link-generation.rs index ee868ec75d3..ee868ec75d3 100644 --- a/tests/rustdoc/sidebar-link-generation.rs +++ b/tests/rustdoc/sidebar/sidebar-link-generation.rs diff --git a/tests/rustdoc/sidebar-links-to-foreign-impl.rs b/tests/rustdoc/sidebar/sidebar-links-to-foreign-impl.rs index 7c039eeb39f..7c039eeb39f 100644 --- a/tests/rustdoc/sidebar-links-to-foreign-impl.rs +++ b/tests/rustdoc/sidebar/sidebar-links-to-foreign-impl.rs diff --git a/tests/rustdoc/sidebar/top-toc-html.rs b/tests/rustdoc/sidebar/top-toc-html.rs new file mode 100644 index 00000000000..0f603960434 --- /dev/null +++ b/tests/rustdoc/sidebar/top-toc-html.rs @@ -0,0 +1,23 @@ +// ignore-tidy-linelength + +#![crate_name = "foo"] +#![feature(lazy_type_alias)] +#![allow(incomplete_features)] + +//! # Basic [link](https://example.com), *emphasis*, **_very emphasis_** and `code` +//! +//! This test case covers TOC entries with rich text inside. +//! Rustdoc normally supports headers with links, but for the +//! TOC, that would break the layout. +//! +//! For consistency, emphasis is also filtered out. + +//@ has foo/index.html +// User header +//@ has - '//section[@id="rustdoc-toc"]/h3' 'Sections' +//@ has - '//section[@id="rustdoc-toc"]/ul[@class="block top-toc"]/li/a[@href="#basic-link-emphasis-very-emphasis-and-code"]/@title' 'Basic link, emphasis, very emphasis and `code`' +//@ has - '//section[@id="rustdoc-toc"]/ul[@class="block top-toc"]/li/a[@href="#basic-link-emphasis-very-emphasis-and-code"]' 'Basic link, emphasis, very emphasis and code' +//@ count - '//section[@id="rustdoc-toc"]/ul[@class="block top-toc"]/li/a[@href="#basic-link-emphasis-very-emphasis-and-code"]/em' 0 +//@ count - '//section[@id="rustdoc-toc"]/ul[@class="block top-toc"]/li/a[@href="#basic-link-emphasis-very-emphasis-and-code"]/a' 0 +//@ count - '//section[@id="rustdoc-toc"]/ul[@class="block top-toc"]/li/a[@href="#basic-link-emphasis-very-emphasis-and-code"]/code' 1 +//@ has - '//section[@id="rustdoc-toc"]/ul[@class="block top-toc"]/li/a[@href="#basic-link-emphasis-very-emphasis-and-code"]/code' 'code' diff --git a/tests/rustdoc/sidebar/top-toc-idmap.rs b/tests/rustdoc/sidebar/top-toc-idmap.rs new file mode 100644 index 00000000000..af07cb4179b --- /dev/null +++ b/tests/rustdoc/sidebar/top-toc-idmap.rs @@ -0,0 +1,44 @@ +#![crate_name = "foo"] +#![feature(lazy_type_alias)] +#![allow(incomplete_features)] + +//! # Structs +//! +//! This header has the same name as a built-in header, +//! and we need to make sure they're disambiguated with +//! suffixes. +//! +//! Module-like headers get derived from the internal ID map, +//! so the *internal* one gets a suffix here. To make sure it +//! works right, the one in the `top-toc` needs to match the one +//! in the `top-doc`, and the one that's not in the `top-doc` +//! needs to match the one that isn't in the `top-toc`. + +//@ has foo/index.html +// User header +//@ has - '//section[@id="rustdoc-toc"]/ul[@class="block top-toc"]/li/a[@href="#structs"]' 'Structs' +//@ has - '//details[@class="toggle top-doc"]/div[@class="docblock"]/h2[@id="structs"]' 'Structs' +// Built-in header +//@ has - '//section[@id="rustdoc-toc"]/ul[@class="block"]/li/a[@href="#structs-1"]' 'Structs' +//@ has - '//section[@id="main-content"]/h2[@id="structs-1"]' 'Structs' + +/// # Fields +/// ## Fields +/// ### Fields +/// +/// The difference between struct-like headers and module-like headers +/// is strange, but not actually a problem as long as we're consistent. + +//@ has foo/struct.MyStruct.html +// User header +//@ has - '//section[@id="rustdoc-toc"]/ul[@class="block top-toc"]/li/a[@href="#fields-1"]' 'Fields' +//@ has - '//details[@class="toggle top-doc"]/div[@class="docblock"]/h2[@id="fields-1"]' 'Fields' +// Only one level of nesting +//@ count - '//section[@id="rustdoc-toc"]/ul[@class="block top-toc"]//a' 2 +// Built-in header +//@ has - '//section[@id="rustdoc-toc"]/h3/a[@href="#fields"]' 'Fields' +//@ has - '//section[@id="main-content"]/h2[@id="fields"]' 'Fields' + +pub struct MyStruct { + pub fields: i32, +} diff --git a/tests/rustdoc/sidebar/top-toc-nil.rs b/tests/rustdoc/sidebar/top-toc-nil.rs new file mode 100644 index 00000000000..d72d41abf88 --- /dev/null +++ b/tests/rustdoc/sidebar/top-toc-nil.rs @@ -0,0 +1,7 @@ +#![crate_name = "foo"] + +//! This test case covers missing top TOC entries. + +//@ has foo/index.html +// User header +//@ !has - '//section[@id="rustdoc-toc"]/ul[@class="block top-toc"]' 'Basic link and emphasis' diff --git a/tests/rustdoc/strip-enum-variant.no-not-shown.html b/tests/rustdoc/strip-enum-variant.no-not-shown.html index e072335297d..d7a36cc631a 100644 --- a/tests/rustdoc/strip-enum-variant.no-not-shown.html +++ b/tests/rustdoc/strip-enum-variant.no-not-shown.html @@ -1 +1 @@ -<ul class="block variant"><li><a href="#variant.Shown">Shown</a></li></ul> \ No newline at end of file +<ul class="block variant"><li><a href="#variant.Shown" title="Shown">Shown</a></li></ul> \ No newline at end of file diff --git a/tests/ui/cast/ptr-to-trait-obj-different-regions-lt-ext.rs b/tests/ui/cast/ptr-to-trait-obj-different-regions-lt-ext.rs index 96345de01c9..be2b89aab08 100644 --- a/tests/ui/cast/ptr-to-trait-obj-different-regions-lt-ext.rs +++ b/tests/ui/cast/ptr-to-trait-obj-different-regions-lt-ext.rs @@ -2,7 +2,7 @@ // // issue: <https://github.com/rust-lang/rust/issues/120217> -#![feature(arbitrary_self_types)] +#![feature(arbitrary_self_types_pointers)] trait Static<'a> { fn proof(self: *const Self, s: &'a str) -> &'static str; diff --git a/tests/ui/check-cfg/well-known-values.stderr b/tests/ui/check-cfg/well-known-values.stderr index 0530e1c34c9..144a67025b3 100644 --- a/tests/ui/check-cfg/well-known-values.stderr +++ b/tests/ui/check-cfg/well-known-values.stderr @@ -210,7 +210,7 @@ warning: unexpected `cfg` condition value: `_UNEXPECTED_VALUE` LL | target_os = "_UNEXPECTED_VALUE", | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | - = note: expected values for `target_os` are: `aix`, `android`, `cuda`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `macos`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `redox`, `solaris`, `solid_asp3`, `teeos`, `trusty`, `tvos`, `uefi`, `unknown`, `visionos`, `vita`, `vxworks`, `wasi`, `watchos`, `windows`, `xous`, and `zkvm` + = note: expected values for `target_os` are: `aix`, `android`, `cuda`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `macos`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `redox`, `rtems`, `solaris`, `solid_asp3`, `teeos`, `trusty`, `tvos`, `uefi`, `unknown`, `visionos`, `vita`, `vxworks`, `wasi`, `watchos`, `windows`, `xous`, and `zkvm` = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg.html> for more information about checking conditional configuration warning: unexpected `cfg` condition value: `_UNEXPECTED_VALUE` @@ -294,7 +294,7 @@ LL | #[cfg(target_os = "linuz")] // testing that we suggest `linux` | | | help: there is a expected value with a similar name: `"linux"` | - = note: expected values for `target_os` are: `aix`, `android`, `cuda`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `macos`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `redox`, `solaris`, `solid_asp3`, `teeos`, `trusty`, `tvos`, `uefi`, `unknown`, `visionos`, `vita`, `vxworks`, `wasi`, `watchos`, `windows`, `xous`, and `zkvm` + = note: expected values for `target_os` are: `aix`, `android`, `cuda`, `dragonfly`, `emscripten`, `espidf`, `freebsd`, `fuchsia`, `haiku`, `hermit`, `horizon`, `hurd`, `illumos`, `ios`, `l4re`, `linux`, `macos`, `netbsd`, `none`, `nto`, `nuttx`, `openbsd`, `psp`, `redox`, `rtems`, `solaris`, `solid_asp3`, `teeos`, `trusty`, `tvos`, `uefi`, `unknown`, `visionos`, `vita`, `vxworks`, `wasi`, `watchos`, `windows`, `xous`, and `zkvm` = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg.html> for more information about checking conditional configuration warning: 30 warnings emitted diff --git a/tests/ui/coherence/normalize-for-errors.next.stderr b/tests/ui/coherence/normalize-for-errors.next.stderr index 634a10b7a14..44952dc1944 100644 --- a/tests/ui/coherence/normalize-for-errors.next.stderr +++ b/tests/ui/coherence/normalize-for-errors.next.stderr @@ -7,7 +7,7 @@ LL | LL | impl<S: Iterator> MyTrait<S> for (Box<<(MyType,) as Mirror>::Assoc>, S::Item) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(Box<(MyType,)>, <_ as Iterator>::Item)` | - = note: upstream crates may add a new impl of trait `std::clone::Clone` for type `(MyType,)` in future versions + = note: upstream crates may add a new impl of trait `std::clone::Clone` for type `std::boxed::Box<(MyType,)>` in future versions = note: upstream crates may add a new impl of trait `std::marker::Copy` for type `std::boxed::Box<(MyType,)>` in future versions error: aborting due to 1 previous error diff --git a/tests/ui/coherence/normalize-for-errors.rs b/tests/ui/coherence/normalize-for-errors.rs index 4188389a3ad..c17bb766b5b 100644 --- a/tests/ui/coherence/normalize-for-errors.rs +++ b/tests/ui/coherence/normalize-for-errors.rs @@ -18,6 +18,6 @@ impl<S: Iterator> MyTrait<S> for (Box<<(MyType,) as Mirror>::Assoc>, S::Item) {} //~^ ERROR conflicting implementations of trait `MyTrait<_>` for type `(Box<(MyType,)>, //~| NOTE conflicting implementation for `(Box<(MyType,)>, //~| NOTE upstream crates may add a new impl of trait `std::marker::Copy` for type `std::boxed::Box<(MyType,)>` in future versions -//[next]~| NOTE upstream crates may add a new impl of trait `std::clone::Clone` for type `(MyType,)` in future versions +//[next]~| NOTE upstream crates may add a new impl of trait `std::clone::Clone` for type `std::boxed::Box<(MyType,)>` in future versions fn main() {} diff --git a/tests/ui/dyn-keyword/dyn-2021-edition-error.stderr b/tests/ui/dyn-keyword/dyn-2021-edition-error.stderr index b39689afd1c..52ee6c81ab7 100644 --- a/tests/ui/dyn-keyword/dyn-2021-edition-error.stderr +++ b/tests/ui/dyn-keyword/dyn-2021-edition-error.stderr @@ -4,7 +4,15 @@ error[E0782]: trait objects must include the `dyn` keyword LL | fn function(x: &SomeTrait, y: Box<SomeTrait>) { | ^^^^^^^^^ | -help: add `dyn` keyword before this trait +help: use a new generic type parameter, constrained by `SomeTrait` + | +LL | fn function<T: SomeTrait>(x: &T, y: Box<SomeTrait>) { + | ++++++++++++++ ~ +help: you can also use an opaque type, but users won't be able to specify the type parameter when calling the `fn`, having to rely exclusively on type inference + | +LL | fn function(x: &impl SomeTrait, y: Box<SomeTrait>) { + | ++++ +help: alternatively, use a trait object to accept any type that implements `SomeTrait`, accessing its methods at runtime using dynamic dispatch | LL | fn function(x: &dyn SomeTrait, y: Box<SomeTrait>) { | +++ diff --git a/tests/ui/feature-gates/feature-gate-arbitrary-self-types-pointers.rs b/tests/ui/feature-gates/feature-gate-arbitrary-self-types-pointers.rs new file mode 100644 index 00000000000..79ceb05662b --- /dev/null +++ b/tests/ui/feature-gates/feature-gate-arbitrary-self-types-pointers.rs @@ -0,0 +1,15 @@ +trait Foo { + fn foo(self: *const Self); //~ ERROR `*const Self` cannot be used as the type of `self` +} + +struct Bar; + +impl Foo for Bar { + fn foo(self: *const Self) {} //~ ERROR `*const Bar` cannot be used as the type of `self` +} + +impl Bar { + fn bar(self: *mut Self) {} //~ ERROR `*mut Bar` cannot be used as the type of `self` +} + +fn main() {} diff --git a/tests/ui/feature-gates/feature-gate-arbitrary-self-types-pointers.stderr b/tests/ui/feature-gates/feature-gate-arbitrary-self-types-pointers.stderr new file mode 100644 index 00000000000..3bb93cf2ea0 --- /dev/null +++ b/tests/ui/feature-gates/feature-gate-arbitrary-self-types-pointers.stderr @@ -0,0 +1,36 @@ +error[E0658]: `*const Bar` cannot be used as the type of `self` without the `arbitrary_self_types_pointers` feature + --> $DIR/feature-gate-arbitrary-self-types-pointers.rs:8:18 + | +LL | fn foo(self: *const Self) {} + | ^^^^^^^^^^^ + | + = note: see issue #44874 <https://github.com/rust-lang/rust/issues/44874> for more information + = help: add `#![feature(arbitrary_self_types_pointers)]` 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: consider changing to `self`, `&self`, `&mut self`, `self: Box<Self>`, `self: Rc<Self>`, `self: Arc<Self>`, or `self: Pin<P>` (where P is one of the previous types except `Self`) + +error[E0658]: `*mut Bar` cannot be used as the type of `self` without the `arbitrary_self_types_pointers` feature + --> $DIR/feature-gate-arbitrary-self-types-pointers.rs:12:18 + | +LL | fn bar(self: *mut Self) {} + | ^^^^^^^^^ + | + = note: see issue #44874 <https://github.com/rust-lang/rust/issues/44874> for more information + = help: add `#![feature(arbitrary_self_types_pointers)]` 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: consider changing to `self`, `&self`, `&mut self`, `self: Box<Self>`, `self: Rc<Self>`, `self: Arc<Self>`, or `self: Pin<P>` (where P is one of the previous types except `Self`) + +error[E0658]: `*const Self` cannot be used as the type of `self` without the `arbitrary_self_types_pointers` feature + --> $DIR/feature-gate-arbitrary-self-types-pointers.rs:2:18 + | +LL | fn foo(self: *const Self); + | ^^^^^^^^^^^ + | + = note: see issue #44874 <https://github.com/rust-lang/rust/issues/44874> for more information + = help: add `#![feature(arbitrary_self_types_pointers)]` 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: consider changing to `self`, `&self`, `&mut self`, `self: Box<Self>`, `self: Rc<Self>`, `self: Arc<Self>`, or `self: Pin<P>` (where P is one of the previous types except `Self`) + +error: aborting due to 3 previous errors + +For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/feature-gates/feature-gate-arbitrary_self_types-raw-pointer.stderr b/tests/ui/feature-gates/feature-gate-arbitrary_self_types-raw-pointer.stderr index 711025ff93b..856e0595331 100644 --- a/tests/ui/feature-gates/feature-gate-arbitrary_self_types-raw-pointer.stderr +++ b/tests/ui/feature-gates/feature-gate-arbitrary_self_types-raw-pointer.stderr @@ -1,33 +1,33 @@ -error[E0658]: `*const Foo` cannot be used as the type of `self` without the `arbitrary_self_types` feature +error[E0658]: `*const Foo` cannot be used as the type of `self` without the `arbitrary_self_types_pointers` feature --> $DIR/feature-gate-arbitrary_self_types-raw-pointer.rs:4:18 | LL | fn foo(self: *const Self) {} | ^^^^^^^^^^^ | = note: see issue #44874 <https://github.com/rust-lang/rust/issues/44874> for more information - = help: add `#![feature(arbitrary_self_types)]` to the crate attributes to enable + = help: add `#![feature(arbitrary_self_types_pointers)]` 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: consider changing to `self`, `&self`, `&mut self`, `self: Box<Self>`, `self: Rc<Self>`, `self: Arc<Self>`, or `self: Pin<P>` (where P is one of the previous types except `Self`) -error[E0658]: `*const ()` cannot be used as the type of `self` without the `arbitrary_self_types` feature +error[E0658]: `*const ()` cannot be used as the type of `self` without the `arbitrary_self_types_pointers` feature --> $DIR/feature-gate-arbitrary_self_types-raw-pointer.rs:14:18 | LL | fn bar(self: *const Self) {} | ^^^^^^^^^^^ | = note: see issue #44874 <https://github.com/rust-lang/rust/issues/44874> for more information - = help: add `#![feature(arbitrary_self_types)]` to the crate attributes to enable + = help: add `#![feature(arbitrary_self_types_pointers)]` 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: consider changing to `self`, `&self`, `&mut self`, `self: Box<Self>`, `self: Rc<Self>`, `self: Arc<Self>`, or `self: Pin<P>` (where P is one of the previous types except `Self`) -error[E0658]: `*const Self` cannot be used as the type of `self` without the `arbitrary_self_types` feature +error[E0658]: `*const Self` cannot be used as the type of `self` without the `arbitrary_self_types_pointers` feature --> $DIR/feature-gate-arbitrary_self_types-raw-pointer.rs:9:18 | LL | fn bar(self: *const Self); | ^^^^^^^^^^^ | = note: see issue #44874 <https://github.com/rust-lang/rust/issues/44874> for more information - = help: add `#![feature(arbitrary_self_types)]` to the crate attributes to enable + = help: add `#![feature(arbitrary_self_types_pointers)]` 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: consider changing to `self`, `&self`, `&mut self`, `self: Box<Self>`, `self: Rc<Self>`, `self: Arc<Self>`, or `self: Pin<P>` (where P is one of the previous types except `Self`) diff --git a/tests/ui/inference/auxiliary/inference_unstable_iterator.rs b/tests/ui/inference/auxiliary/inference_unstable_iterator.rs index 04bc0b1a8ac..8ba6fc89f16 100644 --- a/tests/ui/inference/auxiliary/inference_unstable_iterator.rs +++ b/tests/ui/inference/auxiliary/inference_unstable_iterator.rs @@ -1,5 +1,5 @@ #![feature(staged_api)] -#![feature(arbitrary_self_types)] +#![feature(arbitrary_self_types_pointers)] #![stable(feature = "ipu_iterator", since = "1.0.0")] diff --git a/tests/ui/inference/auxiliary/inference_unstable_itertools.rs b/tests/ui/inference/auxiliary/inference_unstable_itertools.rs index fa1efbcfefc..32ca3a45119 100644 --- a/tests/ui/inference/auxiliary/inference_unstable_itertools.rs +++ b/tests/ui/inference/auxiliary/inference_unstable_itertools.rs @@ -1,4 +1,4 @@ -#![feature(arbitrary_self_types)] +#![feature(arbitrary_self_types_pointers)] pub trait IpuItertools { fn ipu_flatten(&self) -> u32 { diff --git a/tests/ui/inline-const/break-inside-inline-const-issue-128604.rs b/tests/ui/inline-const/break-inside-inline-const-issue-128604.rs new file mode 100644 index 00000000000..a9795d1569c --- /dev/null +++ b/tests/ui/inline-const/break-inside-inline-const-issue-128604.rs @@ -0,0 +1,25 @@ +fn main() { + let _ = ['a'; { break 2; 1 }]; + //~^ ERROR `break` outside of a loop or labeled block + //~| HELP consider labeling this block to be able to break within it + + const { + { + //~^ HELP consider labeling this block to be able to break within it + break; + //~^ ERROR `break` outside of a loop or labeled block + } + }; + + const { + break; + //~^ ERROR `break` outside of a loop or labeled block + }; + + { + const { + break; + //~^ ERROR `break` outside of a loop or labeled block + } + } +} diff --git a/tests/ui/inline-const/break-inside-inline-const-issue-128604.stderr b/tests/ui/inline-const/break-inside-inline-const-issue-128604.stderr new file mode 100644 index 00000000000..300cd45ad69 --- /dev/null +++ b/tests/ui/inline-const/break-inside-inline-const-issue-128604.stderr @@ -0,0 +1,39 @@ +error[E0268]: `break` outside of a loop or labeled block + --> $DIR/break-inside-inline-const-issue-128604.rs:15:9 + | +LL | break; + | ^^^^^ cannot `break` outside of a loop or labeled block + +error[E0268]: `break` outside of a loop or labeled block + --> $DIR/break-inside-inline-const-issue-128604.rs:21:13 + | +LL | break; + | ^^^^^ cannot `break` outside of a loop or labeled block + +error[E0268]: `break` outside of a loop or labeled block + --> $DIR/break-inside-inline-const-issue-128604.rs:2:21 + | +LL | let _ = ['a'; { break 2; 1 }]; + | ^^^^^^^ cannot `break` outside of a loop or labeled block + | +help: consider labeling this block to be able to break within it + | +LL | let _ = ['a'; 'block: { break 'block 2; 1 }]; + | +++++++ ++++++ + +error[E0268]: `break` outside of a loop or labeled block + --> $DIR/break-inside-inline-const-issue-128604.rs:9:13 + | +LL | break; + | ^^^^^ cannot `break` outside of a loop or labeled block + | +help: consider labeling this block to be able to break within it + | +LL ~ 'block: { +LL | +LL ~ break 'block; + | + +error: aborting due to 4 previous errors + +For more information about this error, try `rustc --explain E0268`. diff --git a/tests/ui/object-safety/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs b/tests/ui/object-safety/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs new file mode 100644 index 00000000000..dabaa309c16 --- /dev/null +++ b/tests/ui/object-safety/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs @@ -0,0 +1,142 @@ +//@ edition:2021 + +trait Trait {} + +struct IceCream; + +impl IceCream { + fn foo(_: &Trait) {} + //~^ ERROR: trait objects must include the `dyn` keyword + + fn bar(self, _: &'a Trait) {} + //~^ ERROR: trait objects must include the `dyn` keyword + //~| ERROR: use of undeclared lifetime name + + fn alice<'a>(&self, _: &Trait) {} + //~^ ERROR: trait objects must include the `dyn` keyword + + fn bob<'a>(_: &'a Trait) {} + //~^ ERROR: trait objects must include the `dyn` keyword + + fn cat() -> &Trait { + //~^ ERROR: missing lifetime specifier + //~| ERROR: trait objects must include the `dyn` keyword + &Type + } + + fn dog<'a>() -> &Trait { + //~^ ERROR: missing lifetime specifier + //~| ERROR: trait objects must include the `dyn` keyword + &Type + } + + fn kitten() -> &'a Trait { + //~^ ERROR: use of undeclared lifetime name + //~| ERROR: trait objects must include the `dyn` keyword + &Type + } + + fn puppy<'a>() -> &'a Trait { + //~^ ERROR: trait objects must include the `dyn` keyword + &Type + } + + fn parrot() -> &mut Trait { + //~^ ERROR: missing lifetime specifier + //~| ERROR: trait objects must include the `dyn` keyword + &mut Type + //~^ ERROR: cannot return reference to temporary value + } +} + +trait Sing { + fn foo(_: &Trait); + //~^ ERROR: trait objects must include the `dyn` keyword + + fn bar(_: &'a Trait); + //~^ ERROR: trait objects must include the `dyn` keyword + //~| ERROR: use of undeclared lifetime name + + fn alice<'a>(_: &Trait); + //~^ ERROR: trait objects must include the `dyn` keyword + + fn bob<'a>(_: &'a Trait); + //~^ ERROR: trait objects must include the `dyn` keyword + + fn cat() -> &Trait; + //~^ ERROR: missing lifetime specifier + //~| ERROR: trait objects must include the `dyn` keyword + + fn dog<'a>() -> &Trait { + //~^ ERROR: missing lifetime specifier + //~| ERROR: trait objects must include the `dyn` keyword + &Type + } + + fn kitten() -> &'a Trait { + //~^ ERROR: use of undeclared lifetime name + //~| ERROR: trait objects must include the `dyn` keyword + &Type + } + + fn puppy<'a>() -> &'a Trait { + //~^ ERROR: trait objects must include the `dyn` keyword + &Type + } + + fn parrot() -> &mut Trait { + //~^ ERROR: missing lifetime specifier + //~| ERROR: trait objects must include the `dyn` keyword + &mut Type + //~^ ERROR: cannot return reference to temporary value + } +} + +fn foo(_: &Trait) {} +//~^ ERROR: trait objects must include the `dyn` keyword + +fn bar(_: &'a Trait) {} +//~^ ERROR: trait objects must include the `dyn` keyword +//~| ERROR: use of undeclared lifetime name + +fn alice<'a>(_: &Trait) {} +//~^ ERROR: trait objects must include the `dyn` keyword + +fn bob<'a>(_: &'a Trait) {} +//~^ ERROR: trait objects must include the `dyn` keyword + +struct Type; + +impl Trait for Type {} + +fn cat() -> &Trait { +//~^ ERROR: missing lifetime specifier +//~| ERROR: trait objects must include the `dyn` keyword + &Type +} + +fn dog<'a>() -> &Trait { +//~^ ERROR: missing lifetime specifier +//~| ERROR: trait objects must include the `dyn` keyword + &Type +} + +fn kitten() -> &'a Trait { +//~^ ERROR: use of undeclared lifetime name +//~| ERROR: trait objects must include the `dyn` keyword + &Type +} + +fn puppy<'a>() -> &'a Trait { +//~^ ERROR: trait objects must include the `dyn` keyword + &Type +} + +fn parrot() -> &mut Trait { + //~^ ERROR: missing lifetime specifier + //~| ERROR: trait objects must include the `dyn` keyword + &mut Type + //~^ ERROR: cannot return reference to temporary value +} + +fn main() {} diff --git a/tests/ui/object-safety/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.stderr b/tests/ui/object-safety/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.stderr new file mode 100644 index 00000000000..8bdfea7766e --- /dev/null +++ b/tests/ui/object-safety/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.stderr @@ -0,0 +1,673 @@ +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:11:22 + | +LL | fn bar(self, _: &'a Trait) {} + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn bar<'a>(self, _: &'a Trait) {} + | ++++ +help: consider introducing lifetime `'a` here + | +LL | impl<'a> IceCream { + | ++++ + +error[E0106]: missing lifetime specifier + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:21:17 + | +LL | fn cat() -> &Trait { + | ^ expected named lifetime parameter + | + = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from +help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static` + | +LL | fn cat() -> &'static Trait { + | +++++++ + +error[E0106]: missing lifetime specifier + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:27:21 + | +LL | fn dog<'a>() -> &Trait { + | ^ expected named lifetime parameter + | + = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from +help: consider using the `'a` lifetime + | +LL | fn dog<'a>() -> &'a Trait { + | ++ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:33:21 + | +LL | fn kitten() -> &'a Trait { + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn kitten<'a>() -> &'a Trait { + | ++++ +help: consider introducing lifetime `'a` here + | +LL | impl<'a> IceCream { + | ++++ + +error[E0106]: missing lifetime specifier + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:44:20 + | +LL | fn parrot() -> &mut Trait { + | ^ expected named lifetime parameter + | + = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from +help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static` + | +LL | fn parrot() -> &'static mut Trait { + | +++++++ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:56:16 + | +LL | fn bar(_: &'a Trait); + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn bar<'a>(_: &'a Trait); + | ++++ +help: consider introducing lifetime `'a` here + | +LL | trait Sing<'a> { + | ++++ + +error[E0106]: missing lifetime specifier + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:66:17 + | +LL | fn cat() -> &Trait; + | ^ expected named lifetime parameter + | + = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from +help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static` + | +LL | fn cat() -> &'static Trait; + | +++++++ +help: instead, you are more likely to want to return an owned value + | +LL - fn cat() -> &Trait; +LL + fn cat() -> Trait; + | + +error[E0106]: missing lifetime specifier + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:70:21 + | +LL | fn dog<'a>() -> &Trait { + | ^ expected named lifetime parameter + | + = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from +help: consider using the `'a` lifetime + | +LL | fn dog<'a>() -> &'a Trait { + | ++ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:76:21 + | +LL | fn kitten() -> &'a Trait { + | ^^ undeclared lifetime + | +help: consider introducing lifetime `'a` here + | +LL | fn kitten<'a>() -> &'a Trait { + | ++++ +help: consider introducing lifetime `'a` here + | +LL | trait Sing<'a> { + | ++++ + +error[E0106]: missing lifetime specifier + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:87:20 + | +LL | fn parrot() -> &mut Trait { + | ^ expected named lifetime parameter + | + = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from +help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static` + | +LL | fn parrot() -> &'static mut Trait { + | +++++++ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:98:12 + | +LL | fn bar(_: &'a Trait) {} + | - ^^ undeclared lifetime + | | + | help: consider introducing lifetime `'a` here: `<'a>` + +error[E0106]: missing lifetime specifier + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:112:13 + | +LL | fn cat() -> &Trait { + | ^ expected named lifetime parameter + | + = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from +help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static` + | +LL | fn cat() -> &'static Trait { + | +++++++ + +error[E0106]: missing lifetime specifier + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:118:17 + | +LL | fn dog<'a>() -> &Trait { + | ^ expected named lifetime parameter + | + = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from +help: consider using the `'a` lifetime + | +LL | fn dog<'a>() -> &'a Trait { + | ++ + +error[E0261]: use of undeclared lifetime name `'a` + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:124:17 + | +LL | fn kitten() -> &'a Trait { + | - ^^ undeclared lifetime + | | + | help: consider introducing lifetime `'a` here: `<'a>` + +error[E0106]: missing lifetime specifier + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:135:16 + | +LL | fn parrot() -> &mut Trait { + | ^ expected named lifetime parameter + | + = help: this function's return type contains a borrowed value, but there is no value for it to be borrowed from +help: consider using the `'static` lifetime, but this is uncommon unless you're returning a borrowed value from a `const` or a `static` + | +LL | fn parrot() -> &'static mut Trait { + | +++++++ + +error[E0515]: cannot return reference to temporary value + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:47:9 + | +LL | &mut Type + | ^^^^^---- + | | | + | | temporary value created here + | returns a reference to data owned by the current function + +error[E0515]: cannot return reference to temporary value + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:90:9 + | +LL | &mut Type + | ^^^^^---- + | | | + | | temporary value created here + | returns a reference to data owned by the current function + +error[E0515]: cannot return reference to temporary value + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:138:5 + | +LL | &mut Type + | ^^^^^---- + | | | + | | temporary value created here + | returns a reference to data owned by the current function + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:53:16 + | +LL | fn foo(_: &Trait); + | ^^^^^ + | +help: use a new generic type parameter, constrained by `Trait` + | +LL | fn foo<T: Trait>(_: &T); + | ++++++++++ ~ +help: you can also use an opaque type, but users won't be able to specify the type parameter when calling the `fn`, having to rely exclusively on type inference + | +LL | fn foo(_: &impl Trait); + | ++++ +help: alternatively, use a trait object to accept any type that implements `Trait`, accessing its methods at runtime using dynamic dispatch + | +LL | fn foo(_: &dyn Trait); + | +++ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:56:19 + | +LL | fn bar(_: &'a Trait); + | ^^^^^ + | +help: use a new generic type parameter, constrained by `Trait` + | +LL | fn bar<T: Trait>(_: &'a T); + | ++++++++++ ~ +help: you can also use an opaque type, but users won't be able to specify the type parameter when calling the `fn`, having to rely exclusively on type inference + | +LL | fn bar(_: &'a impl Trait); + | ++++ +help: alternatively, use a trait object to accept any type that implements `Trait`, accessing its methods at runtime using dynamic dispatch + | +LL | fn bar(_: &'a dyn Trait); + | +++ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:60:22 + | +LL | fn alice<'a>(_: &Trait); + | ^^^^^ + | +help: use a new generic type parameter, constrained by `Trait` + | +LL | fn alice<'a, T: Trait>(_: &T); + | ++++++++++ ~ +help: you can also use an opaque type, but users won't be able to specify the type parameter when calling the `fn`, having to rely exclusively on type inference + | +LL | fn alice<'a>(_: &impl Trait); + | ++++ +help: alternatively, use a trait object to accept any type that implements `Trait`, accessing its methods at runtime using dynamic dispatch + | +LL | fn alice<'a>(_: &dyn Trait); + | +++ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:63:23 + | +LL | fn bob<'a>(_: &'a Trait); + | ^^^^^ + | +help: use a new generic type parameter, constrained by `Trait` + | +LL | fn bob<'a, T: Trait>(_: &'a T); + | ++++++++++ ~ +help: you can also use an opaque type, but users won't be able to specify the type parameter when calling the `fn`, having to rely exclusively on type inference + | +LL | fn bob<'a>(_: &'a impl Trait); + | ++++ +help: alternatively, use a trait object to accept any type that implements `Trait`, accessing its methods at runtime using dynamic dispatch + | +LL | fn bob<'a>(_: &'a dyn Trait); + | +++ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:66:18 + | +LL | fn cat() -> &Trait; + | ^^^^^ + | +help: use `impl Trait` to return an opaque type, as long as you return a single underlying type + | +LL | fn cat() -> &impl Trait; + | ++++ +help: alternatively, you can return an owned trait object + | +LL | fn cat() -> Box<dyn Trait>; + | ~~~~~~~~~~~~~~ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:70:22 + | +LL | fn dog<'a>() -> &Trait { + | ^^^^^ + | +help: use `impl Trait` to return an opaque type, as long as you return a single underlying type + | +LL | fn dog<'a>() -> &impl Trait { + | ++++ +help: alternatively, you can return an owned trait object + | +LL | fn dog<'a>() -> Box<dyn Trait> { + | ~~~~~~~~~~~~~~ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:76:24 + | +LL | fn kitten() -> &'a Trait { + | ^^^^^ + | +help: use `impl Trait` to return an opaque type, as long as you return a single underlying type + | +LL | fn kitten() -> &'a impl Trait { + | ++++ +help: alternatively, you can return an owned trait object + | +LL | fn kitten() -> Box<dyn Trait> { + | ~~~~~~~~~~~~~~ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:82:27 + | +LL | fn puppy<'a>() -> &'a Trait { + | ^^^^^ + | +help: use `impl Trait` to return an opaque type, as long as you return a single underlying type + | +LL | fn puppy<'a>() -> &'a impl Trait { + | ++++ +help: alternatively, you can return an owned trait object + | +LL | fn puppy<'a>() -> Box<dyn Trait> { + | ~~~~~~~~~~~~~~ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:87:25 + | +LL | fn parrot() -> &mut Trait { + | ^^^^^ + | +help: use `impl Trait` to return an opaque type, as long as you return a single underlying type + | +LL | fn parrot() -> &mut impl Trait { + | ++++ +help: alternatively, you can return an owned trait object + | +LL | fn parrot() -> Box<dyn Trait> { + | ~~~~~~~~~~~~~~ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:95:12 + | +LL | fn foo(_: &Trait) {} + | ^^^^^ + | +help: use a new generic type parameter, constrained by `Trait` + | +LL | fn foo<T: Trait>(_: &T) {} + | ++++++++++ ~ +help: you can also use an opaque type, but users won't be able to specify the type parameter when calling the `fn`, having to rely exclusively on type inference + | +LL | fn foo(_: &impl Trait) {} + | ++++ +help: alternatively, use a trait object to accept any type that implements `Trait`, accessing its methods at runtime using dynamic dispatch + | +LL | fn foo(_: &dyn Trait) {} + | +++ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:98:15 + | +LL | fn bar(_: &'a Trait) {} + | ^^^^^ + | +help: use a new generic type parameter, constrained by `Trait` + | +LL | fn bar<T: Trait>(_: &'a T) {} + | ++++++++++ ~ +help: you can also use an opaque type, but users won't be able to specify the type parameter when calling the `fn`, having to rely exclusively on type inference + | +LL | fn bar(_: &'a impl Trait) {} + | ++++ +help: alternatively, use a trait object to accept any type that implements `Trait`, accessing its methods at runtime using dynamic dispatch + | +LL | fn bar(_: &'a dyn Trait) {} + | +++ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:102:18 + | +LL | fn alice<'a>(_: &Trait) {} + | ^^^^^ + | +help: use a new generic type parameter, constrained by `Trait` + | +LL | fn alice<'a, T: Trait>(_: &T) {} + | ++++++++++ ~ +help: you can also use an opaque type, but users won't be able to specify the type parameter when calling the `fn`, having to rely exclusively on type inference + | +LL | fn alice<'a>(_: &impl Trait) {} + | ++++ +help: alternatively, use a trait object to accept any type that implements `Trait`, accessing its methods at runtime using dynamic dispatch + | +LL | fn alice<'a>(_: &dyn Trait) {} + | +++ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:105:19 + | +LL | fn bob<'a>(_: &'a Trait) {} + | ^^^^^ + | +help: use a new generic type parameter, constrained by `Trait` + | +LL | fn bob<'a, T: Trait>(_: &'a T) {} + | ++++++++++ ~ +help: you can also use an opaque type, but users won't be able to specify the type parameter when calling the `fn`, having to rely exclusively on type inference + | +LL | fn bob<'a>(_: &'a impl Trait) {} + | ++++ +help: alternatively, use a trait object to accept any type that implements `Trait`, accessing its methods at runtime using dynamic dispatch + | +LL | fn bob<'a>(_: &'a dyn Trait) {} + | +++ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:112:14 + | +LL | fn cat() -> &Trait { + | ^^^^^ + | +help: use `impl Trait` to return an opaque type, as long as you return a single underlying type + | +LL | fn cat() -> &impl Trait { + | ++++ +help: alternatively, you can return an owned trait object + | +LL | fn cat() -> Box<dyn Trait> { + | ~~~~~~~~~~~~~~ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:118:18 + | +LL | fn dog<'a>() -> &Trait { + | ^^^^^ + | +help: use `impl Trait` to return an opaque type, as long as you return a single underlying type + | +LL | fn dog<'a>() -> &impl Trait { + | ++++ +help: alternatively, you can return an owned trait object + | +LL | fn dog<'a>() -> Box<dyn Trait> { + | ~~~~~~~~~~~~~~ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:124:20 + | +LL | fn kitten() -> &'a Trait { + | ^^^^^ + | +help: use `impl Trait` to return an opaque type, as long as you return a single underlying type + | +LL | fn kitten() -> &'a impl Trait { + | ++++ +help: alternatively, you can return an owned trait object + | +LL | fn kitten() -> Box<dyn Trait> { + | ~~~~~~~~~~~~~~ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:130:23 + | +LL | fn puppy<'a>() -> &'a Trait { + | ^^^^^ + | +help: use `impl Trait` to return an opaque type, as long as you return a single underlying type + | +LL | fn puppy<'a>() -> &'a impl Trait { + | ++++ +help: alternatively, you can return an owned trait object + | +LL | fn puppy<'a>() -> Box<dyn Trait> { + | ~~~~~~~~~~~~~~ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:135:21 + | +LL | fn parrot() -> &mut Trait { + | ^^^^^ + | +help: use `impl Trait` to return an opaque type, as long as you return a single underlying type + | +LL | fn parrot() -> &mut impl Trait { + | ++++ +help: alternatively, you can return an owned trait object + | +LL | fn parrot() -> Box<dyn Trait> { + | ~~~~~~~~~~~~~~ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:8:16 + | +LL | fn foo(_: &Trait) {} + | ^^^^^ + | +help: use a new generic type parameter, constrained by `Trait` + | +LL | fn foo<T: Trait>(_: &T) {} + | ++++++++++ ~ +help: you can also use an opaque type, but users won't be able to specify the type parameter when calling the `fn`, having to rely exclusively on type inference + | +LL | fn foo(_: &impl Trait) {} + | ++++ +help: alternatively, use a trait object to accept any type that implements `Trait`, accessing its methods at runtime using dynamic dispatch + | +LL | fn foo(_: &dyn Trait) {} + | +++ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:11:25 + | +LL | fn bar(self, _: &'a Trait) {} + | ^^^^^ + | +help: use a new generic type parameter, constrained by `Trait` + | +LL | fn bar<T: Trait>(self, _: &'a T) {} + | ++++++++++ ~ +help: you can also use an opaque type, but users won't be able to specify the type parameter when calling the `fn`, having to rely exclusively on type inference + | +LL | fn bar(self, _: &'a impl Trait) {} + | ++++ +help: alternatively, use a trait object to accept any type that implements `Trait`, accessing its methods at runtime using dynamic dispatch + | +LL | fn bar(self, _: &'a dyn Trait) {} + | +++ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:15:29 + | +LL | fn alice<'a>(&self, _: &Trait) {} + | ^^^^^ + | +help: use a new generic type parameter, constrained by `Trait` + | +LL | fn alice<'a, T: Trait>(&self, _: &T) {} + | ++++++++++ ~ +help: you can also use an opaque type, but users won't be able to specify the type parameter when calling the `fn`, having to rely exclusively on type inference + | +LL | fn alice<'a>(&self, _: &impl Trait) {} + | ++++ +help: alternatively, use a trait object to accept any type that implements `Trait`, accessing its methods at runtime using dynamic dispatch + | +LL | fn alice<'a>(&self, _: &dyn Trait) {} + | +++ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:18:23 + | +LL | fn bob<'a>(_: &'a Trait) {} + | ^^^^^ + | +help: use a new generic type parameter, constrained by `Trait` + | +LL | fn bob<'a, T: Trait>(_: &'a T) {} + | ++++++++++ ~ +help: you can also use an opaque type, but users won't be able to specify the type parameter when calling the `fn`, having to rely exclusively on type inference + | +LL | fn bob<'a>(_: &'a impl Trait) {} + | ++++ +help: alternatively, use a trait object to accept any type that implements `Trait`, accessing its methods at runtime using dynamic dispatch + | +LL | fn bob<'a>(_: &'a dyn Trait) {} + | +++ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:21:18 + | +LL | fn cat() -> &Trait { + | ^^^^^ + | +help: use `impl Trait` to return an opaque type, as long as you return a single underlying type + | +LL | fn cat() -> &impl Trait { + | ++++ +help: alternatively, you can return an owned trait object + | +LL | fn cat() -> Box<dyn Trait> { + | ~~~~~~~~~~~~~~ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:27:22 + | +LL | fn dog<'a>() -> &Trait { + | ^^^^^ + | +help: use `impl Trait` to return an opaque type, as long as you return a single underlying type + | +LL | fn dog<'a>() -> &impl Trait { + | ++++ +help: alternatively, you can return an owned trait object + | +LL | fn dog<'a>() -> Box<dyn Trait> { + | ~~~~~~~~~~~~~~ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:33:24 + | +LL | fn kitten() -> &'a Trait { + | ^^^^^ + | +help: use `impl Trait` to return an opaque type, as long as you return a single underlying type + | +LL | fn kitten() -> &'a impl Trait { + | ++++ +help: alternatively, you can return an owned trait object + | +LL | fn kitten() -> Box<dyn Trait> { + | ~~~~~~~~~~~~~~ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:39:27 + | +LL | fn puppy<'a>() -> &'a Trait { + | ^^^^^ + | +help: use `impl Trait` to return an opaque type, as long as you return a single underlying type + | +LL | fn puppy<'a>() -> &'a impl Trait { + | ++++ +help: alternatively, you can return an owned trait object + | +LL | fn puppy<'a>() -> Box<dyn Trait> { + | ~~~~~~~~~~~~~~ + +error[E0782]: trait objects must include the `dyn` keyword + --> $DIR/reference-to-bare-trait-in-fn-inputs-and-outputs-issue-125139.rs:44:25 + | +LL | fn parrot() -> &mut Trait { + | ^^^^^ + | +help: use `impl Trait` to return an opaque type, as long as you return a single underlying type + | +LL | fn parrot() -> &mut impl Trait { + | ++++ +help: alternatively, you can return an owned trait object + | +LL | fn parrot() -> Box<dyn Trait> { + | ~~~~~~~~~~~~~~ + +error: aborting due to 45 previous errors + +Some errors have detailed explanations: E0106, E0261, E0515, E0782. +For more information about an error, try `rustc --explain E0106`. diff --git a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/auxiliary/uninhabited.rs b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/auxiliary/uninhabited.rs index a2735d4cbfb..e1799761b69 100644 --- a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/auxiliary/uninhabited.rs +++ b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/auxiliary/uninhabited.rs @@ -7,11 +7,17 @@ pub enum UninhabitedEnum { #[non_exhaustive] pub struct UninhabitedStruct { - _priv: !, + pub never: !, + _priv: (), } #[non_exhaustive] -pub struct UninhabitedTupleStruct(!); +pub struct PrivatelyUninhabitedStruct { + never: !, +} + +#[non_exhaustive] +pub struct UninhabitedTupleStruct(pub !); pub enum UninhabitedVariants { #[non_exhaustive] Tuple(!), diff --git a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/indirect_match.stderr b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/indirect_match.stderr index 66e93291c72..f332e6deeb8 100644 --- a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/indirect_match.stderr +++ b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/indirect_match.stderr @@ -5,7 +5,7 @@ LL | match x {} | ^ | note: `IndirectUninhabitedEnum` defined here - --> $DIR/auxiliary/uninhabited.rs:26:1 + --> $DIR/auxiliary/uninhabited.rs:32:1 | LL | pub struct IndirectUninhabitedEnum(UninhabitedEnum); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -24,7 +24,7 @@ LL | match x {} | ^ | note: `IndirectUninhabitedStruct` defined here - --> $DIR/auxiliary/uninhabited.rs:28:1 + --> $DIR/auxiliary/uninhabited.rs:34:1 | LL | pub struct IndirectUninhabitedStruct(UninhabitedStruct); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -43,7 +43,7 @@ LL | match x {} | ^ | note: `IndirectUninhabitedTupleStruct` defined here - --> $DIR/auxiliary/uninhabited.rs:30:1 + --> $DIR/auxiliary/uninhabited.rs:36:1 | LL | pub struct IndirectUninhabitedTupleStruct(UninhabitedTupleStruct); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -62,7 +62,7 @@ LL | match x {} | ^ | note: `IndirectUninhabitedVariants` defined here - --> $DIR/auxiliary/uninhabited.rs:32:1 + --> $DIR/auxiliary/uninhabited.rs:38:1 | LL | pub struct IndirectUninhabitedVariants(UninhabitedVariants); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/indirect_match_with_exhaustive_patterns.stderr b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/indirect_match_with_exhaustive_patterns.stderr index 745b196a0e3..48f3857bfa7 100644 --- a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/indirect_match_with_exhaustive_patterns.stderr +++ b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/indirect_match_with_exhaustive_patterns.stderr @@ -5,7 +5,7 @@ LL | match x {} | ^ | note: `IndirectUninhabitedEnum` defined here - --> $DIR/auxiliary/uninhabited.rs:26:1 + --> $DIR/auxiliary/uninhabited.rs:32:1 | LL | pub struct IndirectUninhabitedEnum(UninhabitedEnum); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -24,7 +24,7 @@ LL | match x {} | ^ | note: `IndirectUninhabitedStruct` defined here - --> $DIR/auxiliary/uninhabited.rs:28:1 + --> $DIR/auxiliary/uninhabited.rs:34:1 | LL | pub struct IndirectUninhabitedStruct(UninhabitedStruct); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -43,7 +43,7 @@ LL | match x {} | ^ | note: `IndirectUninhabitedTupleStruct` defined here - --> $DIR/auxiliary/uninhabited.rs:30:1 + --> $DIR/auxiliary/uninhabited.rs:36:1 | LL | pub struct IndirectUninhabitedTupleStruct(UninhabitedTupleStruct); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -62,7 +62,7 @@ LL | match x {} | ^ | note: `IndirectUninhabitedVariants` defined here - --> $DIR/auxiliary/uninhabited.rs:32:1 + --> $DIR/auxiliary/uninhabited.rs:38:1 | LL | pub struct IndirectUninhabitedVariants(UninhabitedVariants); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/issue-65157-repeated-match-arm.rs b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/issue-65157-repeated-match-arm.rs index fd77fab8738..6bee019e897 100644 --- a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/issue-65157-repeated-match-arm.rs +++ b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/issue-65157-repeated-match-arm.rs @@ -11,11 +11,12 @@ use uninhabited::PartiallyInhabitedVariants; pub fn foo(x: PartiallyInhabitedVariants) { match x { - PartiallyInhabitedVariants::Struct { .. } => {}, - PartiallyInhabitedVariants::Struct { .. } => {}, + PartiallyInhabitedVariants::Struct { .. } => {} //~^ ERROR unreachable pattern - _ => {}, + PartiallyInhabitedVariants::Struct { .. } => {} + //~^ ERROR unreachable pattern + _ => {} } } -fn main() { } +fn main() {} diff --git a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/issue-65157-repeated-match-arm.stderr b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/issue-65157-repeated-match-arm.stderr index 956725fc10e..4fa53101a55 100644 --- a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/issue-65157-repeated-match-arm.stderr +++ b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/issue-65157-repeated-match-arm.stderr @@ -1,16 +1,23 @@ error: unreachable pattern - --> $DIR/issue-65157-repeated-match-arm.rs:15:9 + --> $DIR/issue-65157-repeated-match-arm.rs:14:9 | -LL | PartiallyInhabitedVariants::Struct { .. } => {}, - | ----------------------------------------- matches all the relevant values -LL | PartiallyInhabitedVariants::Struct { .. } => {}, - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no value can reach this +LL | PartiallyInhabitedVariants::Struct { .. } => {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ matches no values because `PartiallyInhabitedVariants` is uninhabited | + = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types note: the lint level is defined here --> $DIR/issue-65157-repeated-match-arm.rs:2:9 | LL | #![deny(unreachable_patterns)] | ^^^^^^^^^^^^^^^^^^^^ -error: aborting due to 1 previous error +error: unreachable pattern + --> $DIR/issue-65157-repeated-match-arm.rs:16:9 + | +LL | PartiallyInhabitedVariants::Struct { .. } => {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ matches no values because `PartiallyInhabitedVariants` is uninhabited + | + = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types + +error: aborting due to 2 previous errors diff --git a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match.rs b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match.rs index c330f3aa05c..58d7bbd2c17 100644 --- a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match.rs +++ b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match.rs @@ -3,12 +3,7 @@ extern crate uninhabited; -use uninhabited::{ - UninhabitedEnum, - UninhabitedStruct, - UninhabitedTupleStruct, - UninhabitedVariants, -}; +use uninhabited::*; struct A; @@ -19,16 +14,20 @@ fn cannot_empty_match_on_empty_enum_to_anything(x: UninhabitedEnum) -> A { match x {} //~ ERROR non-exhaustive patterns } -fn cannot_empty_match_on_empty_struct_to_anything(x: UninhabitedStruct) -> A { - match x {} //~ ERROR non-exhaustive patterns +fn empty_match_on_empty_struct(x: UninhabitedStruct) -> A { + match x {} } -fn cannot_empty_match_on_empty_tuple_struct_to_anything(x: UninhabitedTupleStruct) -> A { +fn cannot_empty_match_on_privately_empty_struct(x: PrivatelyUninhabitedStruct) -> A { match x {} //~ ERROR non-exhaustive patterns } -fn cannot_empty_match_on_enum_with_empty_variants_struct_to_anything(x: UninhabitedVariants) -> A { - match x {} //~ ERROR non-exhaustive patterns +fn empty_match_on_empty_tuple_struct(x: UninhabitedTupleStruct) -> A { + match x {} +} + +fn empty_match_on_enum_with_empty_variants_struct(x: UninhabitedVariants) -> A { + match x {} } fn main() {} diff --git a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match.stderr b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match.stderr index c125756a646..0232e7106aa 100644 --- a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match.stderr +++ b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match.stderr @@ -1,15 +1,15 @@ -error[E0004]: non-exhaustive patterns: type `UninhabitedEnum` is non-empty - --> $DIR/match.rs:19:11 +error[E0004]: non-exhaustive patterns: type `uninhabited::UninhabitedEnum` is non-empty + --> $DIR/match.rs:14:11 | LL | match x {} | ^ | -note: `UninhabitedEnum` defined here +note: `uninhabited::UninhabitedEnum` defined here --> $DIR/auxiliary/uninhabited.rs:5:1 | LL | pub enum UninhabitedEnum { | ^^^^^^^^^^^^^^^^^^^^^^^^ - = note: the matched value is of type `UninhabitedEnum`, which is marked as non-exhaustive + = note: the matched value is of type `uninhabited::UninhabitedEnum`, which is marked as non-exhaustive help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown | LL ~ match x { @@ -17,18 +17,18 @@ LL + _ => todo!(), LL ~ } | -error[E0004]: non-exhaustive patterns: type `UninhabitedStruct` is non-empty - --> $DIR/match.rs:23:11 +error[E0004]: non-exhaustive patterns: type `uninhabited::PrivatelyUninhabitedStruct` is non-empty + --> $DIR/match.rs:22:11 | LL | match x {} | ^ | -note: `UninhabitedStruct` defined here - --> $DIR/auxiliary/uninhabited.rs:9:1 +note: `uninhabited::PrivatelyUninhabitedStruct` defined here + --> $DIR/auxiliary/uninhabited.rs:15:1 | -LL | pub struct UninhabitedStruct { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - = note: the matched value is of type `UninhabitedStruct` +LL | pub struct PrivatelyUninhabitedStruct { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + = note: the matched value is of type `uninhabited::PrivatelyUninhabitedStruct` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown | LL ~ match x { @@ -36,48 +36,6 @@ LL + _ => todo!(), LL ~ } | -error[E0004]: non-exhaustive patterns: type `UninhabitedTupleStruct` is non-empty - --> $DIR/match.rs:27:11 - | -LL | match x {} - | ^ - | -note: `UninhabitedTupleStruct` defined here - --> $DIR/auxiliary/uninhabited.rs:14:1 - | -LL | pub struct UninhabitedTupleStruct(!); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - = note: the matched value is of type `UninhabitedTupleStruct` -help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown - | -LL ~ match x { -LL + _ => todo!(), -LL ~ } - | - -error[E0004]: non-exhaustive patterns: `UninhabitedVariants::Tuple(_)` and `UninhabitedVariants::Struct { .. }` not covered - --> $DIR/match.rs:31:11 - | -LL | match x {} - | ^ patterns `UninhabitedVariants::Tuple(_)` and `UninhabitedVariants::Struct { .. }` not covered - | -note: `UninhabitedVariants` defined here - --> $DIR/auxiliary/uninhabited.rs:16:1 - | -LL | pub enum UninhabitedVariants { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -LL | #[non_exhaustive] Tuple(!), - | ----- not covered -LL | #[non_exhaustive] Struct { x: ! } - | ------ not covered - = note: the matched value is of type `UninhabitedVariants` -help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern, a match arm with multiple or-patterns as shown, or multiple match arms - | -LL ~ match x { -LL + UninhabitedVariants::Tuple(_) | UninhabitedVariants::Struct { .. } => todo!(), -LL ~ } - | - -error: aborting due to 4 previous errors +error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0004`. diff --git a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match_with_exhaustive_patterns.rs b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match_with_exhaustive_patterns.rs index 108cac7099e..c214581549c 100644 --- a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match_with_exhaustive_patterns.rs +++ b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match_with_exhaustive_patterns.rs @@ -5,32 +5,28 @@ extern crate uninhabited; use uninhabited::{ - UninhabitedEnum, - UninhabitedStruct, - UninhabitedTupleStruct, - UninhabitedVariants, + UninhabitedEnum, UninhabitedStruct, UninhabitedTupleStruct, UninhabitedVariants, }; struct A; -// This test checks that an empty match on a non-exhaustive uninhabited type from an extern crate -// will not compile. In particular, this enables the `exhaustive_patterns` feature as this can -// change the branch used in the compiler to determine this. - -fn cannot_empty_match_on_empty_enum_to_anything(x: UninhabitedEnum) -> A { +// This test checks that non-exhaustive enums are never considered uninhabited outside their +// defining crate, and non-exhaustive structs are considered uninhabited the same way as normal +// ones. +fn cannot_empty_match_on_non_exhaustive_empty_enum(x: UninhabitedEnum) -> A { match x {} //~ ERROR non-exhaustive patterns } -fn cannot_empty_match_on_empty_struct_to_anything(x: UninhabitedStruct) -> A { - match x {} //~ ERROR non-exhaustive patterns +fn empty_match_on_empty_struct(x: UninhabitedStruct) -> A { + match x {} } -fn cannot_empty_match_on_empty_tuple_struct_to_anything(x: UninhabitedTupleStruct) -> A { - match x {} //~ ERROR non-exhaustive patterns +fn empty_match_on_empty_tuple_struct(x: UninhabitedTupleStruct) -> A { + match x {} } -fn cannot_empty_match_on_enum_with_empty_variants_struct_to_anything(x: UninhabitedVariants) -> A { - match x {} //~ ERROR non-exhaustive patterns +fn empty_match_on_enum_with_empty_variants_struct(x: UninhabitedVariants) -> A { + match x {} } fn main() {} diff --git a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match_with_exhaustive_patterns.stderr b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match_with_exhaustive_patterns.stderr index 0c8b14ab69d..d6f0bc724a9 100644 --- a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match_with_exhaustive_patterns.stderr +++ b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match_with_exhaustive_patterns.stderr @@ -1,5 +1,5 @@ error[E0004]: non-exhaustive patterns: type `UninhabitedEnum` is non-empty - --> $DIR/match_with_exhaustive_patterns.rs:21:11 + --> $DIR/match_with_exhaustive_patterns.rs:17:11 | LL | match x {} | ^ @@ -17,67 +17,6 @@ LL + _ => todo!(), LL ~ } | -error[E0004]: non-exhaustive patterns: type `UninhabitedStruct` is non-empty - --> $DIR/match_with_exhaustive_patterns.rs:25:11 - | -LL | match x {} - | ^ - | -note: `UninhabitedStruct` defined here - --> $DIR/auxiliary/uninhabited.rs:9:1 - | -LL | pub struct UninhabitedStruct { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - = note: the matched value is of type `UninhabitedStruct` -help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown - | -LL ~ match x { -LL + _ => todo!(), -LL ~ } - | - -error[E0004]: non-exhaustive patterns: type `UninhabitedTupleStruct` is non-empty - --> $DIR/match_with_exhaustive_patterns.rs:29:11 - | -LL | match x {} - | ^ - | -note: `UninhabitedTupleStruct` defined here - --> $DIR/auxiliary/uninhabited.rs:14:1 - | -LL | pub struct UninhabitedTupleStruct(!); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - = note: the matched value is of type `UninhabitedTupleStruct` -help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown - | -LL ~ match x { -LL + _ => todo!(), -LL ~ } - | - -error[E0004]: non-exhaustive patterns: `UninhabitedVariants::Tuple(_)` and `UninhabitedVariants::Struct { .. }` not covered - --> $DIR/match_with_exhaustive_patterns.rs:33:11 - | -LL | match x {} - | ^ patterns `UninhabitedVariants::Tuple(_)` and `UninhabitedVariants::Struct { .. }` not covered - | -note: `UninhabitedVariants` defined here - --> $DIR/auxiliary/uninhabited.rs:16:1 - | -LL | pub enum UninhabitedVariants { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -LL | #[non_exhaustive] Tuple(!), - | ----- not covered -LL | #[non_exhaustive] Struct { x: ! } - | ------ not covered - = note: the matched value is of type `UninhabitedVariants` -help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern, a match arm with multiple or-patterns as shown, or multiple match arms - | -LL ~ match x { -LL + UninhabitedVariants::Tuple(_) | UninhabitedVariants::Struct { .. } => todo!(), -LL ~ } - | - -error: aborting due to 4 previous errors +error: aborting due to 1 previous error For more information about this error, try `rustc --explain E0004`. diff --git a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match_with_exhaustive_patterns_same_crate.rs b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match_with_exhaustive_patterns_same_crate.rs index 468703c78e0..96620162212 100644 --- a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match_with_exhaustive_patterns_same_crate.rs +++ b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/match_with_exhaustive_patterns_same_crate.rs @@ -1,5 +1,4 @@ //@ check-pass - #![deny(unreachable_patterns)] #![feature(never_type)] @@ -9,11 +8,12 @@ pub enum UninhabitedEnum { #[non_exhaustive] pub struct UninhabitedStruct { - _priv: !, + pub never: !, + _priv: (), } #[non_exhaustive] -pub struct UninhabitedTupleStruct(!); +pub struct UninhabitedTupleStruct(pub !); pub enum UninhabitedVariants { #[non_exhaustive] Tuple(!), @@ -22,24 +22,21 @@ pub enum UninhabitedVariants { struct A; -// This test checks that an empty match on a non-exhaustive uninhabited type from the defining crate -// will compile. In particular, this enables the `exhaustive_patterns` feature as this can -// change the branch used in the compiler to determine this. -// Codegen is skipped because tests with long names can cause issues on Windows CI, see #60648. - -fn cannot_empty_match_on_empty_enum_to_anything(x: UninhabitedEnum) -> A { +// This checks that `non_exhaustive` annotations do not affect exhaustiveness checking within the +// defining crate. +fn empty_match_on_empty_enum(x: UninhabitedEnum) -> A { match x {} } -fn cannot_empty_match_on_empty_struct_to_anything(x: UninhabitedStruct) -> A { +fn empty_match_on_empty_struct(x: UninhabitedStruct) -> A { match x {} } -fn cannot_empty_match_on_empty_tuple_struct_to_anything(x: UninhabitedTupleStruct) -> A { +fn empty_match_on_empty_tuple_struct(x: UninhabitedTupleStruct) -> A { match x {} } -fn cannot_empty_match_on_enum_with_empty_variants_struct_to_anything(x: UninhabitedVariants) -> A { +fn empty_match_on_enum_with_empty_variants_struct(x: UninhabitedVariants) -> A { match x {} } diff --git a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/patterns.rs b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/patterns.rs index be55ad51578..edc588777eb 100644 --- a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/patterns.rs +++ b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/patterns.rs @@ -1,14 +1,10 @@ //@ aux-build:uninhabited.rs -//@ build-pass (FIXME(62277): could be check-pass?) #![deny(unreachable_patterns)] extern crate uninhabited; use uninhabited::{ - PartiallyInhabitedVariants, - UninhabitedEnum, - UninhabitedStruct, - UninhabitedTupleStruct, + PartiallyInhabitedVariants, UninhabitedEnum, UninhabitedStruct, UninhabitedTupleStruct, UninhabitedVariants, }; @@ -32,27 +28,26 @@ fn uninhabited_tuple_struct() -> Option<UninhabitedTupleStruct> { None } -// This test checks that non-exhaustive types that would normally be considered uninhabited within -// the defining crate are not considered uninhabited from extern crates. - +// This test checks that non-exhaustive enums are never considered uninhabited outside their +// defining crate, and non-exhaustive structs are considered uninhabited the same way as normal +// ones. fn main() { match uninhabited_enum() { - Some(_x) => (), // This line would normally error. + Some(_x) => (), // This would error without `non_exhaustive` None => (), } match uninhabited_variant() { - Some(_x) => (), // This line would normally error. + Some(_x) => (), //~ ERROR unreachable None => (), } // This line would normally error. - while let PartiallyInhabitedVariants::Struct { x, .. } = partially_inhabited_variant() { - } + while let PartiallyInhabitedVariants::Struct { x, .. } = partially_inhabited_variant() {} //~ ERROR unreachable - while let Some(_x) = uninhabited_struct() { // This line would normally error. + while let Some(_x) = uninhabited_struct() { //~ ERROR unreachable } - while let Some(_x) = uninhabited_tuple_struct() { // This line would normally error. + while let Some(_x) = uninhabited_tuple_struct() { //~ ERROR unreachable } } diff --git a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/patterns.stderr b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/patterns.stderr new file mode 100644 index 00000000000..deaa2ffd927 --- /dev/null +++ b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/patterns.stderr @@ -0,0 +1,39 @@ +error: unreachable pattern + --> $DIR/patterns.rs:41:9 + | +LL | Some(_x) => (), + | ^^^^^^^^ matches no values because `UninhabitedVariants` is uninhabited + | + = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types +note: the lint level is defined here + --> $DIR/patterns.rs:2:9 + | +LL | #![deny(unreachable_patterns)] + | ^^^^^^^^^^^^^^^^^^^^ + +error: unreachable pattern + --> $DIR/patterns.rs:46:15 + | +LL | while let PartiallyInhabitedVariants::Struct { x, .. } = partially_inhabited_variant() {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ matches no values because `!` is uninhabited + | + = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types + +error: unreachable pattern + --> $DIR/patterns.rs:48:15 + | +LL | while let Some(_x) = uninhabited_struct() { + | ^^^^^^^^ matches no values because `UninhabitedStruct` is uninhabited + | + = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types + +error: unreachable pattern + --> $DIR/patterns.rs:51:15 + | +LL | while let Some(_x) = uninhabited_tuple_struct() { + | ^^^^^^^^ matches no values because `UninhabitedTupleStruct` is uninhabited + | + = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types + +error: aborting due to 4 previous errors + diff --git a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.rs b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.rs index 1194d7b858d..58cced3d23d 100644 --- a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.rs +++ b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.rs @@ -6,11 +6,12 @@ pub enum UninhabitedEnum { } #[non_exhaustive] -pub struct UninhabitedTupleStruct(!); +pub struct UninhabitedTupleStruct(pub !); #[non_exhaustive] pub struct UninhabitedStruct { - _priv: !, + pub never: !, + _priv: (), } pub enum UninhabitedVariants { diff --git a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.stderr b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.stderr index 7e7dc802e7f..38524bf5b95 100644 --- a/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.stderr +++ b/tests/ui/rfcs/rfc-2008-non-exhaustive/uninhabited/patterns_same_crate.stderr @@ -1,5 +1,5 @@ error: unreachable pattern - --> $DIR/patterns_same_crate.rs:51:9 + --> $DIR/patterns_same_crate.rs:52:9 | LL | Some(_x) => (), | ^^^^^^^^ matches no values because `UninhabitedEnum` is uninhabited @@ -12,7 +12,7 @@ LL | #![deny(unreachable_patterns)] | ^^^^^^^^^^^^^^^^^^^^ error: unreachable pattern - --> $DIR/patterns_same_crate.rs:56:9 + --> $DIR/patterns_same_crate.rs:57:9 | LL | Some(_x) => (), | ^^^^^^^^ matches no values because `UninhabitedVariants` is uninhabited @@ -20,7 +20,7 @@ LL | Some(_x) => (), = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types error: unreachable pattern - --> $DIR/patterns_same_crate.rs:60:15 + --> $DIR/patterns_same_crate.rs:61:15 | LL | while let PartiallyInhabitedVariants::Struct { x } = partially_inhabited_variant() { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ matches no values because `!` is uninhabited @@ -28,7 +28,7 @@ LL | while let PartiallyInhabitedVariants::Struct { x } = partially_inhabite = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types error: unreachable pattern - --> $DIR/patterns_same_crate.rs:64:15 + --> $DIR/patterns_same_crate.rs:65:15 | LL | while let Some(_x) = uninhabited_struct() { | ^^^^^^^^ matches no values because `UninhabitedStruct` is uninhabited @@ -36,7 +36,7 @@ LL | while let Some(_x) = uninhabited_struct() { = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types error: unreachable pattern - --> $DIR/patterns_same_crate.rs:67:15 + --> $DIR/patterns_same_crate.rs:68:15 | LL | while let Some(_x) = uninhabited_tuple_struct() { | ^^^^^^^^ matches no values because `UninhabitedTupleStruct` is uninhabited diff --git a/tests/ui/self/arbitrary_self_types_raw_pointer_struct.rs b/tests/ui/self/arbitrary_self_types_raw_pointer_struct.rs index 1f45d91847f..7f76ed7fd2a 100644 --- a/tests/ui/self/arbitrary_self_types_raw_pointer_struct.rs +++ b/tests/ui/self/arbitrary_self_types_raw_pointer_struct.rs @@ -1,5 +1,5 @@ //@ run-pass -#![feature(arbitrary_self_types)] +#![feature(arbitrary_self_types_pointers)] use std::rc::Rc; diff --git a/tests/ui/self/arbitrary_self_types_raw_pointer_trait.rs b/tests/ui/self/arbitrary_self_types_raw_pointer_trait.rs index 43f596659b9..6f34c9281b0 100644 --- a/tests/ui/self/arbitrary_self_types_raw_pointer_trait.rs +++ b/tests/ui/self/arbitrary_self_types_raw_pointer_trait.rs @@ -1,5 +1,5 @@ //@ run-pass -#![feature(arbitrary_self_types)] +#![feature(arbitrary_self_types_pointers)] use std::ptr; diff --git a/tests/ui/stats/hir-stats.rs b/tests/ui/stats/hir-stats.rs index 249413d80e8..7c5da8cf554 100644 --- a/tests/ui/stats/hir-stats.rs +++ b/tests/ui/stats/hir-stats.rs @@ -1,12 +1,15 @@ //@ check-pass //@ compile-flags: -Zhir-stats //@ only-x86_64 +// layout randomization affects the hir stat output +//@ needs-deterministic-layouts // Type layouts sometimes change. When that happens, until the next bootstrap // bump occurs, stage1 and stage2 will give different outputs for this test. // Add an `ignore-stage1` comment marker to work around that problem during // that time. + // The aim here is to include at least one of every different type of top-level // AST/HIR node reported by `-Zhir-stats`. diff --git a/tests/ui/std/windows-bat-args.rs b/tests/ui/std/windows-bat-args.rs index a9b6252b78c..cc4a43692ab 100644 --- a/tests/ui/std/windows-bat-args.rs +++ b/tests/ui/std/windows-bat-args.rs @@ -32,7 +32,9 @@ fn parent() { let bat2 = String::from(bat.to_str().unwrap()); bat.set_file_name("windows-bat-args3.bat"); let bat3 = String::from(bat.to_str().unwrap()); - let bat = [bat1.as_str(), bat2.as_str(), bat3.as_str()]; + bat.set_file_name("windows-bat-args1.bat .. "); + let bat4 = String::from(bat.to_str().unwrap()); + let bat = [bat1.as_str(), bat2.as_str(), bat3.as_str(), bat4.as_str()]; check_args(&bat, &["a", "b"]).unwrap(); check_args(&bat, &["c is for cat", "d is for dog"]).unwrap(); diff --git a/tests/ui/structs-enums/type-sizes.rs b/tests/ui/structs-enums/type-sizes.rs index 9c933a9ef1c..5ca9c8678b7 100644 --- a/tests/ui/structs-enums/type-sizes.rs +++ b/tests/ui/structs-enums/type-sizes.rs @@ -1,4 +1,5 @@ //@ run-pass +//@ needs-deterministic-layouts #![allow(non_camel_case_types)] #![allow(dead_code)] diff --git a/tests/ui/unsafe/break-inside-unsafe-block-issue-128604.rs b/tests/ui/unsafe/break-inside-unsafe-block-issue-128604.rs new file mode 100644 index 00000000000..a83141f0e4e --- /dev/null +++ b/tests/ui/unsafe/break-inside-unsafe-block-issue-128604.rs @@ -0,0 +1,34 @@ +fn main() { + let a = ["_"; unsafe { break; 1 + 2 }]; + //~^ ERROR `break` outside of a loop or labeled block + + unsafe { + { + //~^ HELP consider labeling this block to be able to break within it + break; + //~^ ERROR `break` outside of a loop or labeled block + } + } + + unsafe { + break; + //~^ ERROR `break` outside of a loop or labeled block + } + + { + //~^ HELP consider labeling this block to be able to break within it + unsafe { + break; + //~^ ERROR `break` outside of a loop or labeled block + } + } + + while 2 > 1 { + unsafe { + if true || false { + break; + } + } + } + +} diff --git a/tests/ui/unsafe/break-inside-unsafe-block-issue-128604.stderr b/tests/ui/unsafe/break-inside-unsafe-block-issue-128604.stderr new file mode 100644 index 00000000000..b7cbe1a5cf4 --- /dev/null +++ b/tests/ui/unsafe/break-inside-unsafe-block-issue-128604.stderr @@ -0,0 +1,42 @@ +error[E0268]: `break` outside of a loop or labeled block + --> $DIR/break-inside-unsafe-block-issue-128604.rs:2:28 + | +LL | let a = ["_"; unsafe { break; 1 + 2 }]; + | ^^^^^ cannot `break` outside of a loop or labeled block + +error[E0268]: `break` outside of a loop or labeled block + --> $DIR/break-inside-unsafe-block-issue-128604.rs:14:9 + | +LL | break; + | ^^^^^ cannot `break` outside of a loop or labeled block + +error[E0268]: `break` outside of a loop or labeled block + --> $DIR/break-inside-unsafe-block-issue-128604.rs:8:13 + | +LL | break; + | ^^^^^ cannot `break` outside of a loop or labeled block + | +help: consider labeling this block to be able to break within it + | +LL ~ 'block: { +LL | +LL ~ break 'block; + | + +error[E0268]: `break` outside of a loop or labeled block + --> $DIR/break-inside-unsafe-block-issue-128604.rs:21:13 + | +LL | break; + | ^^^^^ cannot `break` outside of a loop or labeled block + | +help: consider labeling this block to be able to break within it + | +LL ~ 'block: { +LL | +LL | unsafe { +LL ~ break 'block; + | + +error: aborting due to 4 previous errors + +For more information about this error, try `rustc --explain E0268`. |