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| author | bors <bors@rust-lang.org> | 2025-09-11 09:04:28 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2025-09-11 09:04:28 +0000 |
| commit | 76c5ed2847cdb26ef2822a3a165d710f6b772217 (patch) | |
| tree | e7eaf5da90738ef6953b28d81471a12d3a9296fc | |
| parent | 5e33838ccad070f1536ed82336dd0133e2681233 (diff) | |
| parent | 613a3b6a42b5c7413fe4a8ffd4f16ec39c32a814 (diff) | |
| download | rust-76c5ed2847cdb26ef2822a3a165d710f6b772217.tar.gz rust-76c5ed2847cdb26ef2822a3a165d710f6b772217.zip | |
Auto merge of #146429 - Zalathar:rollup-eivhl6u, r=Zalathar
Rollup of 11 pull requests Successful merges: - rust-lang/rust#142315 (core::ptr: deduplicate docs for as_ref, addr, and as_uninit_ref) - rust-lang/rust#146335 (disable core dumps for panic-uninitialized-zeroed) - rust-lang/rust#146347 (report duplicate symbols added by the driver) - rust-lang/rust#146370 (Update the LoongArch target documentation) - rust-lang/rust#146379 (Fix `compare_against_sw_vers` test) - rust-lang/rust#146380 (Unify and deduplicate bits conv float tests) - rust-lang/rust#146415 (s390x: mark soft-float target feature as incompatible) - rust-lang/rust#146422 (Less greedily parse `[const]` bounds) - rust-lang/rust#146424 (Improve `core::ops` coverage) - rust-lang/rust#146425 (Improve `core::array` coverage) - rust-lang/rust#146428 (Revert `assert!` desugaring changes (rust-lang/rust#122661)) r? `@ghost` `@rustbot` modify labels: rollup
49 files changed, 576 insertions, 534 deletions
diff --git a/compiler/rustc_builtin_macros/src/assert.rs b/compiler/rustc_builtin_macros/src/assert.rs index 013258a1b4e..855da5caa31 100644 --- a/compiler/rustc_builtin_macros/src/assert.rs +++ b/compiler/rustc_builtin_macros/src/assert.rs @@ -1,8 +1,8 @@ mod context; -use rustc_ast::token::{self, Delimiter}; +use rustc_ast::token::Delimiter; use rustc_ast::tokenstream::{DelimSpan, TokenStream}; -use rustc_ast::{DelimArgs, Expr, ExprKind, MacCall, Path, PathSegment}; +use rustc_ast::{DelimArgs, Expr, ExprKind, MacCall, Path, PathSegment, UnOp, token}; use rustc_ast_pretty::pprust; use rustc_errors::PResult; use rustc_expand::base::{DummyResult, ExpandResult, ExtCtxt, MacEager, MacroExpanderResult}; @@ -29,7 +29,7 @@ pub(crate) fn expand_assert<'cx>( // `core::panic` and `std::panic` are different macros, so we use call-site // context to pick up whichever is currently in scope. - let call_site_span = cx.with_call_site_ctxt(cond_expr.span); + let call_site_span = cx.with_call_site_ctxt(span); let panic_path = || { if use_panic_2021(span) { @@ -63,7 +63,7 @@ pub(crate) fn expand_assert<'cx>( }), })), ); - assert_cond_check(cx, call_site_span, cond_expr, then) + expr_if_not(cx, call_site_span, cond_expr, then, None) } // If `generic_assert` is enabled, generates rich captured outputs // @@ -88,33 +88,26 @@ pub(crate) fn expand_assert<'cx>( )), )], ); - assert_cond_check(cx, call_site_span, cond_expr, then) + expr_if_not(cx, call_site_span, cond_expr, then, None) }; ExpandResult::Ready(MacEager::expr(expr)) } -/// `assert!($cond_expr, $custom_message)` struct Assert { cond_expr: Box<Expr>, custom_message: Option<TokenStream>, } -/// `match <cond> { true => {} _ => <then> }` -fn assert_cond_check(cx: &ExtCtxt<'_>, span: Span, cond: Box<Expr>, then: Box<Expr>) -> Box<Expr> { - // Instead of expanding to `if !<cond> { <then> }`, we expand to - // `match <cond> { true => {} _ => <then> }`. - // This allows us to always complain about mismatched types instead of "cannot apply unary - // operator `!` to type `X`" when passing an invalid `<cond>`, while also allowing `<cond>` to - // be `&true`. - let els = cx.expr_block(cx.block(span, thin_vec![])); - let mut arms = thin_vec![]; - arms.push(cx.arm(span, cx.pat_lit(span, cx.expr_bool(span, true)), els)); - arms.push(cx.arm(span, cx.pat_wild(span), then)); - - // We wrap the `match` in a statement to limit the length of any borrows introduced in the - // condition. - cx.expr_block(cx.block(span, [cx.stmt_expr(cx.expr_match(span, cond, arms))].into())) +// if !{ ... } { ... } else { ... } +fn expr_if_not( + cx: &ExtCtxt<'_>, + span: Span, + cond: Box<Expr>, + then: Box<Expr>, + els: Option<Box<Expr>>, +) -> Box<Expr> { + cx.expr_if(span, cx.expr(span, ExprKind::Unary(UnOp::Not, cond)), then, els) } fn parse_assert<'a>(cx: &ExtCtxt<'a>, sp: Span, stream: TokenStream) -> PResult<'a, Assert> { diff --git a/compiler/rustc_parse/src/parser/ty.rs b/compiler/rustc_parse/src/parser/ty.rs index 6168647183f..23aaafac934 100644 --- a/compiler/rustc_parse/src/parser/ty.rs +++ b/compiler/rustc_parse/src/parser/ty.rs @@ -92,10 +92,10 @@ fn can_continue_type_after_non_fn_ident(t: &Token) -> bool { } fn can_begin_dyn_bound_in_edition_2015(t: &Token) -> bool { - // `Not`, `Tilde` & `Const` are deliberately not part of this list to + // `!`, `const`, `[`, `async` are deliberately not part of this list to // contain the number of potential regressions esp. in MBE code. - // `Const` would regress `rfc-2632-const-trait-impl/mbe-dyn-const-2015.rs`. - // `Not` would regress `dyn!(...)` macro calls in Rust 2015. + // `const` and `[` would regress UI test `macro-dyn-const-2015.rs`. + // `!` would regress `dyn!(...)` macro calls in Rust 2015. t.is_path_start() || t.is_lifetime() || t == &TokenKind::Question @@ -1015,12 +1015,18 @@ impl<'a> Parser<'a> { || self.check(exp!(Tilde)) || self.check_keyword(exp!(For)) || self.check(exp!(OpenParen)) - || self.check(exp!(OpenBracket)) + || self.can_begin_maybe_const_bound() || self.check_keyword(exp!(Const)) || self.check_keyword(exp!(Async)) || self.check_keyword(exp!(Use)) } + fn can_begin_maybe_const_bound(&mut self) -> bool { + self.check(exp!(OpenBracket)) + && self.look_ahead(1, |t| t.is_keyword(kw::Const)) + && self.look_ahead(2, |t| *t == token::CloseBracket) + } + /// Parse a bound. /// /// ```ebnf @@ -1199,10 +1205,7 @@ impl<'a> Parser<'a> { let span = tilde.to(self.prev_token.span); self.psess.gated_spans.gate(sym::const_trait_impl, span); BoundConstness::Maybe(span) - } else if self.check(exp!(OpenBracket)) - && self.look_ahead(1, |t| t.is_keyword(kw::Const)) - && self.look_ahead(2, |t| *t == token::CloseBracket) - { + } else if self.can_begin_maybe_const_bound() { let start = self.token.span; self.bump(); self.expect_keyword(exp!(Const)).unwrap(); diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index aedeb0e14ed..cdb0b5b58da 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -7,7 +7,7 @@ use std::ops::Deref; use std::{fmt, str}; use rustc_arena::DroplessArena; -use rustc_data_structures::fx::FxIndexSet; +use rustc_data_structures::fx::{FxHashSet, FxIndexSet}; use rustc_data_structures::stable_hasher::{ HashStable, StableCompare, StableHasher, ToStableHashKey, }; @@ -2871,11 +2871,20 @@ impl Interner { let byte_strs = FxIndexSet::from_iter( init.iter().copied().chain(extra.iter().copied()).map(|str| str.as_bytes()), ); - assert_eq!( - byte_strs.len(), - init.len() + extra.len(), - "duplicate symbols in the rustc symbol list and the extra symbols added by the driver", - ); + + // The order in which duplicates are reported is irrelevant. + #[expect(rustc::potential_query_instability)] + if byte_strs.len() != init.len() + extra.len() { + panic!( + "duplicate symbols in the rustc symbol list and the extra symbols added by the driver: {:?}", + FxHashSet::intersection( + &init.iter().copied().collect(), + &extra.iter().copied().collect(), + ) + .collect::<Vec<_>>() + ) + } + Interner(Lock::new(InternerInner { arena: Default::default(), byte_strs })) } diff --git a/compiler/rustc_target/src/target_features.rs b/compiler/rustc_target/src/target_features.rs index 4c1b8c99426..dc70089c385 100644 --- a/compiler/rustc_target/src/target_features.rs +++ b/compiler/rustc_target/src/target_features.rs @@ -849,6 +849,7 @@ const IBMZ_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ ("miscellaneous-extensions-3", Unstable(sym::s390x_target_feature), &[]), ("miscellaneous-extensions-4", Unstable(sym::s390x_target_feature), &[]), ("nnp-assist", Unstable(sym::s390x_target_feature), &["vector"]), + ("soft-float", Forbidden { reason: "currently unsupported ABI-configuration feature" }, &[]), ("transactional-execution", Unstable(sym::s390x_target_feature), &[]), ("vector", Unstable(sym::s390x_target_feature), &[]), ("vector-enhancements-1", Unstable(sym::s390x_target_feature), &["vector"]), @@ -1177,6 +1178,13 @@ impl Target { _ => unreachable!(), } } + "s390x" => { + // We don't currently support a softfloat target on this architecture. + // As usual, we have to reject swapping the `soft-float` target feature. + // The "vector" target feature does not affect the ABI for floats + // because the vector and float registers overlap. + FeatureConstraints { required: &[], incompatible: &["soft-float"] } + } _ => NOTHING, } } diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs index d71110521ff..e18e294635b 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs @@ -1618,18 +1618,8 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { { let e = self.tcx.erase_and_anonymize_regions(e); let f = self.tcx.erase_and_anonymize_regions(f); - let mut expected = with_forced_trimmed_paths!(e.sort_string(self.tcx)); - let mut found = with_forced_trimmed_paths!(f.sort_string(self.tcx)); - if let ObligationCauseCode::Pattern { span, .. } = cause.code() - && let Some(span) = span - && !span.from_expansion() - && cause.span.from_expansion() - { - // When the type error comes from a macro like `assert!()`, and we are pointing at - // code the user wrote the cause and effect are reversed as the expected value is - // what the macro expanded to. - (found, expected) = (expected, found); - } + let expected = with_forced_trimmed_paths!(e.sort_string(self.tcx)); + let found = with_forced_trimmed_paths!(f.sort_string(self.tcx)); if expected == found { label_or_note(span, terr.to_string(self.tcx)); } else { @@ -2152,9 +2142,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { ) -> Option<(DiagStyledString, DiagStyledString)> { match values { ValuePairs::Regions(exp_found) => self.expected_found_str(exp_found), - ValuePairs::Terms(exp_found) => { - self.expected_found_str_term(cause, exp_found, long_ty_path) - } + ValuePairs::Terms(exp_found) => self.expected_found_str_term(exp_found, long_ty_path), ValuePairs::Aliases(exp_found) => self.expected_found_str(exp_found), ValuePairs::ExistentialTraitRef(exp_found) => self.expected_found_str(exp_found), ValuePairs::ExistentialProjection(exp_found) => self.expected_found_str(exp_found), @@ -2193,7 +2181,6 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { fn expected_found_str_term( &self, - cause: &ObligationCause<'tcx>, exp_found: ty::error::ExpectedFound<ty::Term<'tcx>>, long_ty_path: &mut Option<PathBuf>, ) -> Option<(DiagStyledString, DiagStyledString)> { @@ -2201,27 +2188,8 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { if exp_found.references_error() { return None; } - let (mut expected, mut found) = (exp_found.expected, exp_found.found); - - if let ObligationCauseCode::Pattern { span, .. } = cause.code() - && let Some(span) = span - && !span.from_expansion() - && cause.span.from_expansion() - { - // When the type error comes from a macro like `assert!()`, and we are pointing at - // code the user wrote, the cause and effect are reversed as the expected value is - // what the macro expanded to. So if the user provided a `Type` when the macro is - // written in such a way that a `bool` was expected, we want to print: - // = note: expected `bool` - // found `Type`" - // but as far as the compiler is concerned, after expansion what was expected was `Type` - // = note: expected `Type` - // found `bool`" - // so we reverse them here to match user expectation. - (expected, found) = (found, expected); - } - Some(match (expected.kind(), found.kind()) { + Some(match (exp_found.expected.kind(), exp_found.found.kind()) { (ty::TermKind::Ty(expected), ty::TermKind::Ty(found)) => { let (mut exp, mut fnd) = self.cmp(expected, found); // Use the terminal width as the basis to determine when to compress the printed diff --git a/library/core/src/ptr/const_ptr.rs b/library/core/src/ptr/const_ptr.rs index c5f0cb8016e..45109270944 100644 --- a/library/core/src/ptr/const_ptr.rs +++ b/library/core/src/ptr/const_ptr.rs @@ -146,28 +146,7 @@ impl<T: PointeeSized> *const T { self as _ } - /// Gets the "address" portion of the pointer. - /// - /// This is similar to `self as usize`, except that the [provenance][crate::ptr#provenance] of - /// the pointer is discarded and not [exposed][crate::ptr#exposed-provenance]. This means that - /// casting the returned address back to a pointer yields a [pointer without - /// provenance][without_provenance], which is undefined behavior to dereference. To properly - /// restore the lost information and obtain a dereferenceable pointer, use - /// [`with_addr`][pointer::with_addr] or [`map_addr`][pointer::map_addr]. - /// - /// If using those APIs is not possible because there is no way to preserve a pointer with the - /// required provenance, then Strict Provenance might not be for you. Use pointer-integer casts - /// or [`expose_provenance`][pointer::expose_provenance] and [`with_exposed_provenance`][with_exposed_provenance] - /// instead. However, note that this makes your code less portable and less amenable to tools - /// that check for compliance with the Rust memory model. - /// - /// On most platforms this will produce a value with the same bytes as the original - /// pointer, because all the bytes are dedicated to describing the address. - /// Platforms which need to store additional information in the pointer may - /// perform a change of representation to produce a value containing only the address - /// portion of the pointer. What that means is up to the platform to define. - /// - /// This is a [Strict Provenance][crate::ptr#strict-provenance] API. + #[doc = include_str!("./docs/addr.md")] #[must_use] #[inline(always)] #[stable(feature = "strict_provenance", since = "1.84.0")] @@ -254,23 +233,16 @@ impl<T: PointeeSized> *const T { (self.cast(), metadata(self)) } - /// Returns `None` if the pointer is null, or else returns a shared reference to - /// the value wrapped in `Some`. If the value may be uninitialized, [`as_uninit_ref`] - /// must be used instead. - /// - /// [`as_uninit_ref`]: #method.as_uninit_ref - /// - /// # Safety - /// - /// When calling this method, you have to ensure that *either* the pointer is null *or* - /// the pointer is [convertible to a reference](crate::ptr#pointer-to-reference-conversion). + #[doc = include_str!("./docs/as_ref.md")] /// - /// # Panics during const evaluation - /// - /// This method will panic during const evaluation if the pointer cannot be - /// determined to be null or not. See [`is_null`] for more information. + /// ``` + /// let ptr: *const u8 = &10u8 as *const u8; /// - /// [`is_null`]: #method.is_null + /// unsafe { + /// let val_back = &*ptr; + /// assert_eq!(val_back, &10); + /// } + /// ``` /// /// # Examples /// @@ -284,20 +256,9 @@ impl<T: PointeeSized> *const T { /// } /// ``` /// - /// # Null-unchecked version /// - /// If you are sure the pointer can never be null and are looking for some kind of - /// `as_ref_unchecked` that returns the `&T` instead of `Option<&T>`, know that you can - /// dereference the pointer directly. - /// - /// ``` - /// let ptr: *const u8 = &10u8 as *const u8; - /// - /// unsafe { - /// let val_back = &*ptr; - /// assert_eq!(val_back, &10); - /// } - /// ``` + /// [`is_null`]: #method.is_null + /// [`as_uninit_ref`]: #method.as_uninit_ref #[stable(feature = "ptr_as_ref", since = "1.9.0")] #[rustc_const_stable(feature = "const_ptr_is_null", since = "1.84.0")] #[inline] @@ -338,23 +299,10 @@ impl<T: PointeeSized> *const T { unsafe { &*self } } - /// Returns `None` if the pointer is null, or else returns a shared reference to - /// the value wrapped in `Some`. In contrast to [`as_ref`], this does not require - /// that the value has to be initialized. - /// - /// [`as_ref`]: #method.as_ref - /// - /// # Safety - /// - /// When calling this method, you have to ensure that *either* the pointer is null *or* - /// the pointer is [convertible to a reference](crate::ptr#pointer-to-reference-conversion). - /// - /// # Panics during const evaluation - /// - /// This method will panic during const evaluation if the pointer cannot be - /// determined to be null or not. See [`is_null`] for more information. + #[doc = include_str!("./docs/as_uninit_ref.md")] /// /// [`is_null`]: #method.is_null + /// [`as_ref`]: #method.as_ref /// /// # Examples /// diff --git a/library/core/src/ptr/docs/INFO.md b/library/core/src/ptr/docs/INFO.md new file mode 100644 index 00000000000..28a0da4926a --- /dev/null +++ b/library/core/src/ptr/docs/INFO.md @@ -0,0 +1,21 @@ +This directory holds method documentation that otherwise +would be duplicated across mutable and immutable pointers. + +Note that most of the docs here are not the complete docs +for their corresponding method. This is for a few reasons: + +1. Examples need to be different for mutable/immutable + pointers, in order to actually call the correct method. +2. Link reference definitions are frequently different + between mutable/immutable pointers, in order to link to + the correct method. + For example, `<*const T>::as_ref` links to + `<*const T>::is_null`, while `<*mut T>::as_ref` links to + `<*mut T>::is_null`. +3. Many methods on mutable pointers link to an alternate + version that returns a mutable reference instead of + a shared reference. + +Always review the rendered docs manually when making +changes to these files to make sure you're not accidentally +splitting up a section. diff --git a/library/core/src/ptr/docs/addr.md b/library/core/src/ptr/docs/addr.md new file mode 100644 index 00000000000..785b88a9987 --- /dev/null +++ b/library/core/src/ptr/docs/addr.md @@ -0,0 +1,22 @@ +Gets the "address" portion of the pointer. + +This is similar to `self as usize`, except that the [provenance][crate::ptr#provenance] of +the pointer is discarded and not [exposed][crate::ptr#exposed-provenance]. This means that +casting the returned address back to a pointer yields a [pointer without +provenance][without_provenance], which is undefined behavior to dereference. To properly +restore the lost information and obtain a dereferenceable pointer, use +[`with_addr`][pointer::with_addr] or [`map_addr`][pointer::map_addr]. + +If using those APIs is not possible because there is no way to preserve a pointer with the +required provenance, then Strict Provenance might not be for you. Use pointer-integer casts +or [`expose_provenance`][pointer::expose_provenance] and [`with_exposed_provenance`][with_exposed_provenance] +instead. However, note that this makes your code less portable and less amenable to tools +that check for compliance with the Rust memory model. + +On most platforms this will produce a value with the same bytes as the original +pointer, because all the bytes are dedicated to describing the address. +Platforms which need to store additional information in the pointer may +perform a change of representation to produce a value containing only the address +portion of the pointer. What that means is up to the platform to define. + +This is a [Strict Provenance][crate::ptr#strict-provenance] API. diff --git a/library/core/src/ptr/docs/as_ref.md b/library/core/src/ptr/docs/as_ref.md new file mode 100644 index 00000000000..0c0d2768c74 --- /dev/null +++ b/library/core/src/ptr/docs/as_ref.md @@ -0,0 +1,19 @@ +Returns `None` if the pointer is null, or else returns a shared reference to +the value wrapped in `Some`. If the value may be uninitialized, [`as_uninit_ref`] +must be used instead. + +# Safety + +When calling this method, you have to ensure that *either* the pointer is null *or* +the pointer is [convertible to a reference](crate::ptr#pointer-to-reference-conversion). + +# Panics during const evaluation + +This method will panic during const evaluation if the pointer cannot be +determined to be null or not. See [`is_null`] for more information. + +# Null-unchecked version + +If you are sure the pointer can never be null and are looking for some kind of +`as_ref_unchecked` that returns the `&T` instead of `Option<&T>`, know that you can +dereference the pointer directly. diff --git a/library/core/src/ptr/docs/as_uninit_ref.md b/library/core/src/ptr/docs/as_uninit_ref.md new file mode 100644 index 00000000000..5b9a1ecb85b --- /dev/null +++ b/library/core/src/ptr/docs/as_uninit_ref.md @@ -0,0 +1,15 @@ +Returns `None` if the pointer is null, or else returns a shared reference to +the value wrapped in `Some`. In contrast to [`as_ref`], this does not require +that the value has to be initialized. + +# Safety + +When calling this method, you have to ensure that *either* the pointer is null *or* +the pointer is [convertible to a reference](crate::ptr#pointer-to-reference-conversion). +Note that because the created reference is to `MaybeUninit<T>`, the +source pointer can point to uninitialized memory. + +# Panics during const evaluation + +This method will panic during const evaluation if the pointer cannot be +determined to be null or not. See [`is_null`] for more information. diff --git a/library/core/src/ptr/mut_ptr.rs b/library/core/src/ptr/mut_ptr.rs index ce6eee4f911..ba78afc7ea1 100644 --- a/library/core/src/ptr/mut_ptr.rs +++ b/library/core/src/ptr/mut_ptr.rs @@ -135,28 +135,9 @@ impl<T: PointeeSized> *mut T { self as _ } - /// Gets the "address" portion of the pointer. - /// - /// This is similar to `self as usize`, except that the [provenance][crate::ptr#provenance] of - /// the pointer is discarded and not [exposed][crate::ptr#exposed-provenance]. This means that - /// casting the returned address back to a pointer yields a [pointer without - /// provenance][without_provenance_mut], which is undefined behavior to dereference. To properly - /// restore the lost information and obtain a dereferenceable pointer, use - /// [`with_addr`][pointer::with_addr] or [`map_addr`][pointer::map_addr]. - /// - /// If using those APIs is not possible because there is no way to preserve a pointer with the - /// required provenance, then Strict Provenance might not be for you. Use pointer-integer casts - /// or [`expose_provenance`][pointer::expose_provenance] and [`with_exposed_provenance`][with_exposed_provenance] - /// instead. However, note that this makes your code less portable and less amenable to tools - /// that check for compliance with the Rust memory model. - /// - /// On most platforms this will produce a value with the same bytes as the original - /// pointer, because all the bytes are dedicated to describing the address. - /// Platforms which need to store additional information in the pointer may - /// perform a change of representation to produce a value containing only the address - /// portion of the pointer. What that means is up to the platform to define. + #[doc = include_str!("./docs/addr.md")] /// - /// This is a [Strict Provenance][crate::ptr#strict-provenance] API. + /// [without_provenance]: without_provenance_mut #[must_use] #[inline(always)] #[stable(feature = "strict_provenance", since = "1.84.0")] @@ -243,26 +224,16 @@ impl<T: PointeeSized> *mut T { (self.cast(), super::metadata(self)) } - /// Returns `None` if the pointer is null, or else returns a shared reference to - /// the value wrapped in `Some`. If the value may be uninitialized, [`as_uninit_ref`] - /// must be used instead. - /// - /// For the mutable counterpart see [`as_mut`]. + #[doc = include_str!("./docs/as_ref.md")] /// - /// [`as_uninit_ref`]: pointer#method.as_uninit_ref-1 - /// [`as_mut`]: #method.as_mut - /// - /// # Safety - /// - /// When calling this method, you have to ensure that *either* the pointer is null *or* - /// the pointer is [convertible to a reference](crate::ptr#pointer-to-reference-conversion). - /// - /// # Panics during const evaluation - /// - /// This method will panic during const evaluation if the pointer cannot be - /// determined to be null or not. See [`is_null`] for more information. + /// ``` + /// let ptr: *mut u8 = &mut 10u8 as *mut u8; /// - /// [`is_null`]: #method.is_null-1 + /// unsafe { + /// let val_back = &*ptr; + /// println!("We got back the value: {val_back}!"); + /// } + /// ``` /// /// # Examples /// @@ -276,20 +247,14 @@ impl<T: PointeeSized> *mut T { /// } /// ``` /// - /// # Null-unchecked version - /// - /// If you are sure the pointer can never be null and are looking for some kind of - /// `as_ref_unchecked` that returns the `&T` instead of `Option<&T>`, know that you can - /// dereference the pointer directly. + /// # See Also /// - /// ``` - /// let ptr: *mut u8 = &mut 10u8 as *mut u8; + /// For the mutable counterpart see [`as_mut`]. /// - /// unsafe { - /// let val_back = &*ptr; - /// println!("We got back the value: {val_back}!"); - /// } - /// ``` + /// [`is_null`]: #method.is_null-1 + /// [`as_uninit_ref`]: pointer#method.as_uninit_ref-1 + /// [`as_mut`]: #method.as_mut + #[stable(feature = "ptr_as_ref", since = "1.9.0")] #[rustc_const_stable(feature = "const_ptr_is_null", since = "1.84.0")] #[inline] @@ -332,28 +297,15 @@ impl<T: PointeeSized> *mut T { unsafe { &*self } } - /// Returns `None` if the pointer is null, or else returns a shared reference to - /// the value wrapped in `Some`. In contrast to [`as_ref`], this does not require - /// that the value has to be initialized. - /// - /// For the mutable counterpart see [`as_uninit_mut`]. + #[doc = include_str!("./docs/as_uninit_ref.md")] /// + /// [`is_null`]: #method.is_null-1 /// [`as_ref`]: pointer#method.as_ref-1 - /// [`as_uninit_mut`]: #method.as_uninit_mut - /// - /// # Safety - /// - /// When calling this method, you have to ensure that *either* the pointer is null *or* - /// the pointer is [convertible to a reference](crate::ptr#pointer-to-reference-conversion). - /// Note that because the created reference is to `MaybeUninit<T>`, the - /// source pointer can point to uninitialized memory. - /// - /// # Panics during const evaluation /// - /// This method will panic during const evaluation if the pointer cannot be - /// determined to be null or not. See [`is_null`] for more information. + /// # See Also + /// For the mutable counterpart see [`as_uninit_mut`]. /// - /// [`is_null`]: #method.is_null-1 + /// [`as_uninit_mut`]: #method.as_uninit_mut /// /// # Examples /// diff --git a/library/coretests/tests/array.rs b/library/coretests/tests/array.rs index 30ccbbc3203..c4a8fc74fec 100644 --- a/library/coretests/tests/array.rs +++ b/library/coretests/tests/array.rs @@ -717,3 +717,10 @@ fn array_map_drops_unmapped_elements_on_panic() { assert_eq!(counter.load(Ordering::SeqCst), MAX); } } + +// This covers the `PartialEq::<[T]>::eq` impl for `[T; N]` when it returns false. +#[test] +fn array_eq() { + let not_true = [0u8] == [].as_slice(); + assert!(!not_true); +} diff --git a/library/coretests/tests/floats/f128.rs b/library/coretests/tests/floats/f128.rs index 4267fef50f8..d31eba863f5 100644 --- a/library/coretests/tests/floats/f128.rs +++ b/library/coretests/tests/floats/f128.rs @@ -17,12 +17,6 @@ const TOL: f128 = 1e-12; #[allow(unused)] const TOL_PRECISE: f128 = 1e-28; -/// First pattern over the mantissa -const NAN_MASK1: u128 = 0x0000aaaaaaaaaaaaaaaaaaaaaaaaaaaa; - -/// Second pattern over the mantissa -const NAN_MASK2: u128 = 0x00005555555555555555555555555555; - // FIXME(f16_f128,miri): many of these have to be disabled since miri does not yet support // the intrinsics. @@ -55,28 +49,6 @@ fn test_max_recip() { } #[test] -fn test_float_bits_conv() { - assert_eq!((1f128).to_bits(), 0x3fff0000000000000000000000000000); - assert_eq!((12.5f128).to_bits(), 0x40029000000000000000000000000000); - assert_eq!((1337f128).to_bits(), 0x40094e40000000000000000000000000); - assert_eq!((-14.25f128).to_bits(), 0xc002c800000000000000000000000000); - assert_biteq!(f128::from_bits(0x3fff0000000000000000000000000000), 1.0); - assert_biteq!(f128::from_bits(0x40029000000000000000000000000000), 12.5); - assert_biteq!(f128::from_bits(0x40094e40000000000000000000000000), 1337.0); - assert_biteq!(f128::from_bits(0xc002c800000000000000000000000000), -14.25); - - // Check that NaNs roundtrip their bits regardless of signaling-ness - // 0xA is 0b1010; 0x5 is 0b0101 -- so these two together clobbers all the mantissa bits - let masked_nan1 = f128::NAN.to_bits() ^ NAN_MASK1; - let masked_nan2 = f128::NAN.to_bits() ^ NAN_MASK2; - assert!(f128::from_bits(masked_nan1).is_nan()); - assert!(f128::from_bits(masked_nan2).is_nan()); - - assert_eq!(f128::from_bits(masked_nan1).to_bits(), masked_nan1); - assert_eq!(f128::from_bits(masked_nan2).to_bits(), masked_nan2); -} - -#[test] fn test_from() { assert_biteq!(f128::from(false), 0.0); assert_biteq!(f128::from(true), 1.0); diff --git a/library/coretests/tests/floats/f16.rs b/library/coretests/tests/floats/f16.rs index d2818a6d768..302fd0861d7 100644 --- a/library/coretests/tests/floats/f16.rs +++ b/library/coretests/tests/floats/f16.rs @@ -19,12 +19,6 @@ const TOL_P2: f16 = 0.5; #[allow(unused)] const TOL_P4: f16 = 10.0; -/// First pattern over the mantissa -const NAN_MASK1: u16 = 0x02aa; - -/// Second pattern over the mantissa -const NAN_MASK2: u16 = 0x0155; - // FIXME(f16_f128,miri): many of these have to be disabled since miri does not yet support // the intrinsics. @@ -53,27 +47,6 @@ fn test_max_recip() { } #[test] -fn test_float_bits_conv() { - assert_eq!((1f16).to_bits(), 0x3c00); - assert_eq!((12.5f16).to_bits(), 0x4a40); - assert_eq!((1337f16).to_bits(), 0x6539); - assert_eq!((-14.25f16).to_bits(), 0xcb20); - assert_biteq!(f16::from_bits(0x3c00), 1.0); - assert_biteq!(f16::from_bits(0x4a40), 12.5); - assert_biteq!(f16::from_bits(0x6539), 1337.0); - assert_biteq!(f16::from_bits(0xcb20), -14.25); - - // Check that NaNs roundtrip their bits regardless of signaling-ness - let masked_nan1 = f16::NAN.to_bits() ^ NAN_MASK1; - let masked_nan2 = f16::NAN.to_bits() ^ NAN_MASK2; - assert!(f16::from_bits(masked_nan1).is_nan()); - assert!(f16::from_bits(masked_nan2).is_nan()); - - assert_eq!(f16::from_bits(masked_nan1).to_bits(), masked_nan1); - assert_eq!(f16::from_bits(masked_nan2).to_bits(), masked_nan2); -} - -#[test] fn test_from() { assert_biteq!(f16::from(false), 0.0); assert_biteq!(f16::from(true), 1.0); diff --git a/library/coretests/tests/floats/f32.rs b/library/coretests/tests/floats/f32.rs index 7b25f354da4..a1fe8b07650 100644 --- a/library/coretests/tests/floats/f32.rs +++ b/library/coretests/tests/floats/f32.rs @@ -2,12 +2,6 @@ use core::f32; use super::assert_biteq; -/// First pattern over the mantissa -const NAN_MASK1: u32 = 0x002a_aaaa; - -/// Second pattern over the mantissa -const NAN_MASK2: u32 = 0x0055_5555; - // FIXME(#140515): mingw has an incorrect fma https://sourceforge.net/p/mingw-w64/bugs/848/ #[cfg_attr(all(target_os = "windows", target_env = "gnu", not(target_abi = "llvm")), ignore)] #[test] @@ -25,25 +19,3 @@ fn test_mul_add() { assert_biteq!(f32::math::mul_add(8.9f32, inf, 3.2), inf); assert_biteq!(f32::math::mul_add(-3.2f32, 2.4, neg_inf), neg_inf); } - -#[test] -fn test_float_bits_conv() { - assert_eq!((1f32).to_bits(), 0x3f800000); - assert_eq!((12.5f32).to_bits(), 0x41480000); - assert_eq!((1337f32).to_bits(), 0x44a72000); - assert_eq!((-14.25f32).to_bits(), 0xc1640000); - assert_biteq!(f32::from_bits(0x3f800000), 1.0); - assert_biteq!(f32::from_bits(0x41480000), 12.5); - assert_biteq!(f32::from_bits(0x44a72000), 1337.0); - assert_biteq!(f32::from_bits(0xc1640000), -14.25); - - // Check that NaNs roundtrip their bits regardless of signaling-ness - // 0xA is 0b1010; 0x5 is 0b0101 -- so these two together clobbers all the mantissa bits - let masked_nan1 = f32::NAN.to_bits() ^ NAN_MASK1; - let masked_nan2 = f32::NAN.to_bits() ^ NAN_MASK2; - assert!(f32::from_bits(masked_nan1).is_nan()); - assert!(f32::from_bits(masked_nan2).is_nan()); - - assert_eq!(f32::from_bits(masked_nan1).to_bits(), masked_nan1); - assert_eq!(f32::from_bits(masked_nan2).to_bits(), masked_nan2); -} diff --git a/library/coretests/tests/floats/f64.rs b/library/coretests/tests/floats/f64.rs index 099d85627a3..4c5a3d68d1f 100644 --- a/library/coretests/tests/floats/f64.rs +++ b/library/coretests/tests/floats/f64.rs @@ -2,12 +2,6 @@ use core::f64; use super::assert_biteq; -/// First pattern over the mantissa -const NAN_MASK1: u64 = 0x000a_aaaa_aaaa_aaaa; - -/// Second pattern over the mantissa -const NAN_MASK2: u64 = 0x0005_5555_5555_5555; - // FIXME(#140515): mingw has an incorrect fma https://sourceforge.net/p/mingw-w64/bugs/848/ #[cfg_attr(all(target_os = "windows", target_env = "gnu", not(target_abi = "llvm")), ignore)] #[test] @@ -25,24 +19,3 @@ fn test_mul_add() { assert_biteq!(8.9f64.mul_add(inf, 3.2), inf); assert_biteq!((-3.2f64).mul_add(2.4, neg_inf), neg_inf); } - -#[test] -fn test_float_bits_conv() { - assert_eq!((1f64).to_bits(), 0x3ff0000000000000); - assert_eq!((12.5f64).to_bits(), 0x4029000000000000); - assert_eq!((1337f64).to_bits(), 0x4094e40000000000); - assert_eq!((-14.25f64).to_bits(), 0xc02c800000000000); - assert_biteq!(f64::from_bits(0x3ff0000000000000), 1.0); - assert_biteq!(f64::from_bits(0x4029000000000000), 12.5); - assert_biteq!(f64::from_bits(0x4094e40000000000), 1337.0); - assert_biteq!(f64::from_bits(0xc02c800000000000), -14.25); - - // Check that NaNs roundtrip their bits regardless of signaling-ness - let masked_nan1 = f64::NAN.to_bits() ^ NAN_MASK1; - let masked_nan2 = f64::NAN.to_bits() ^ NAN_MASK2; - assert!(f64::from_bits(masked_nan1).is_nan()); - assert!(f64::from_bits(masked_nan2).is_nan()); - - assert_eq!(f64::from_bits(masked_nan1).to_bits(), masked_nan1); - assert_eq!(f64::from_bits(masked_nan2).to_bits(), masked_nan2); -} diff --git a/library/coretests/tests/floats/mod.rs b/library/coretests/tests/floats/mod.rs index c0439845a4a..31515561c63 100644 --- a/library/coretests/tests/floats/mod.rs +++ b/library/coretests/tests/floats/mod.rs @@ -30,6 +30,10 @@ trait TestableFloat: Sized { const EPS_ADD: Self; const EPS_MUL: Self; const EPS_DIV: Self; + const RAW_1: Self; + const RAW_12_DOT_5: Self; + const RAW_1337: Self; + const RAW_MINUS_14_DOT_25: Self; } impl TestableFloat for f16 { @@ -50,6 +54,10 @@ impl TestableFloat for f16 { const EPS_ADD: Self = if cfg!(miri) { 1e1 } else { 0.0 }; const EPS_MUL: Self = if cfg!(miri) { 1e3 } else { 0.0 }; const EPS_DIV: Self = if cfg!(miri) { 1e0 } else { 0.0 }; + const RAW_1: Self = Self::from_bits(0x3c00); + const RAW_12_DOT_5: Self = Self::from_bits(0x4a40); + const RAW_1337: Self = Self::from_bits(0x6539); + const RAW_MINUS_14_DOT_25: Self = Self::from_bits(0xcb20); } impl TestableFloat for f32 { @@ -72,6 +80,10 @@ impl TestableFloat for f32 { const EPS_ADD: Self = if cfg!(miri) { 1e-3 } else { 0.0 }; const EPS_MUL: Self = if cfg!(miri) { 1e-1 } else { 0.0 }; const EPS_DIV: Self = if cfg!(miri) { 1e-4 } else { 0.0 }; + const RAW_1: Self = Self::from_bits(0x3f800000); + const RAW_12_DOT_5: Self = Self::from_bits(0x41480000); + const RAW_1337: Self = Self::from_bits(0x44a72000); + const RAW_MINUS_14_DOT_25: Self = Self::from_bits(0xc1640000); } impl TestableFloat for f64 { @@ -90,6 +102,10 @@ impl TestableFloat for f64 { const EPS_ADD: Self = if cfg!(miri) { 1e-6 } else { 0.0 }; const EPS_MUL: Self = if cfg!(miri) { 1e-6 } else { 0.0 }; const EPS_DIV: Self = if cfg!(miri) { 1e-6 } else { 0.0 }; + const RAW_1: Self = Self::from_bits(0x3ff0000000000000); + const RAW_12_DOT_5: Self = Self::from_bits(0x4029000000000000); + const RAW_1337: Self = Self::from_bits(0x4094e40000000000); + const RAW_MINUS_14_DOT_25: Self = Self::from_bits(0xc02c800000000000); } impl TestableFloat for f128 { @@ -108,6 +124,10 @@ impl TestableFloat for f128 { const EPS_ADD: Self = if cfg!(miri) { 1e-6 } else { 0.0 }; const EPS_MUL: Self = if cfg!(miri) { 1e-6 } else { 0.0 }; const EPS_DIV: Self = if cfg!(miri) { 1e-6 } else { 0.0 }; + const RAW_1: Self = Self::from_bits(0x3fff0000000000000000000000000000); + const RAW_12_DOT_5: Self = Self::from_bits(0x40029000000000000000000000000000); + const RAW_1337: Self = Self::from_bits(0x40094e40000000000000000000000000); + const RAW_MINUS_14_DOT_25: Self = Self::from_bits(0xc002c800000000000000000000000000); } /// Determine the tolerance for values of the argument type. @@ -250,6 +270,8 @@ macro_rules! float_test { $( $( #[$f16_meta] )+ )? fn test_f16() { type $fty = f16; + #[allow(unused)] + const fn flt (x: $fty) -> $fty { x } $test } @@ -257,6 +279,8 @@ macro_rules! float_test { $( $( #[$f32_meta] )+ )? fn test_f32() { type $fty = f32; + #[allow(unused)] + const fn flt (x: $fty) -> $fty { x } $test } @@ -264,6 +288,8 @@ macro_rules! float_test { $( $( #[$f64_meta] )+ )? fn test_f64() { type $fty = f64; + #[allow(unused)] + const fn flt (x: $fty) -> $fty { x } $test } @@ -271,6 +297,8 @@ macro_rules! float_test { $( $( #[$f128_meta] )+ )? fn test_f128() { type $fty = f128; + #[allow(unused)] + const fn flt (x: $fty) -> $fty { x } $test } @@ -293,6 +321,8 @@ macro_rules! float_test { $( $( #[$f16_const_meta] )+ )? fn test_f16() { type $fty = f16; + #[allow(unused)] + const fn flt (x: $fty) -> $fty { x } const { $test } } @@ -300,6 +330,8 @@ macro_rules! float_test { $( $( #[$f32_const_meta] )+ )? fn test_f32() { type $fty = f32; + #[allow(unused)] + const fn flt (x: $fty) -> $fty { x } const { $test } } @@ -307,6 +339,8 @@ macro_rules! float_test { $( $( #[$f64_const_meta] )+ )? fn test_f64() { type $fty = f64; + #[allow(unused)] + const fn flt (x: $fty) -> $fty { x } const { $test } } @@ -314,6 +348,8 @@ macro_rules! float_test { $( $( #[$f128_const_meta] )+ )? fn test_f128() { type $fty = f128; + #[allow(unused)] + const fn flt (x: $fty) -> $fty { x } const { $test } } } @@ -1479,3 +1515,30 @@ float_test! { assert_approx_eq!(a.algebraic_rem(b), a % b, Float::EPS_DIV); } } + +float_test! { + name: to_bits_conv, + attrs: { + f16: #[cfg(target_has_reliable_f16)], + f128: #[cfg(target_has_reliable_f128)], + }, + test<Float> { + assert_biteq!(flt(1.0), Float::RAW_1); + assert_biteq!(flt(12.5), Float::RAW_12_DOT_5); + assert_biteq!(flt(1337.0), Float::RAW_1337); + assert_biteq!(flt(-14.25), Float::RAW_MINUS_14_DOT_25); + assert_biteq!(Float::RAW_1, 1.0); + assert_biteq!(Float::RAW_12_DOT_5, 12.5); + assert_biteq!(Float::RAW_1337, 1337.0); + assert_biteq!(Float::RAW_MINUS_14_DOT_25, -14.25); + + // Check that NaNs roundtrip their bits regardless of signaling-ness + let masked_nan1 = Float::NAN.to_bits() ^ Float::NAN_MASK1; + let masked_nan2 = Float::NAN.to_bits() ^ Float::NAN_MASK2; + assert!(Float::from_bits(masked_nan1).is_nan()); + assert!(Float::from_bits(masked_nan2).is_nan()); + + assert_biteq!(Float::from_bits(masked_nan1), Float::from_bits(masked_nan1)); + assert_biteq!(Float::from_bits(masked_nan2), Float::from_bits(masked_nan2)); + } +} diff --git a/library/coretests/tests/lib.rs b/library/coretests/tests/lib.rs index b5658a9970f..1bdaa6965f6 100644 --- a/library/coretests/tests/lib.rs +++ b/library/coretests/tests/lib.rs @@ -81,6 +81,7 @@ #![feature(next_index)] #![feature(non_exhaustive_omitted_patterns_lint)] #![feature(numfmt)] +#![feature(one_sided_range)] #![feature(option_reduce)] #![feature(pattern)] #![feature(peekable_next_if_map)] diff --git a/library/coretests/tests/ops.rs b/library/coretests/tests/ops.rs index 501e0f33fe4..121718f2167 100644 --- a/library/coretests/tests/ops.rs +++ b/library/coretests/tests/ops.rs @@ -2,7 +2,8 @@ mod control_flow; mod from_residual; use core::ops::{ - Bound, Deref, DerefMut, Range, RangeFrom, RangeFull, RangeInclusive, RangeTo, RangeToInclusive, + Bound, Deref, DerefMut, OneSidedRange, OneSidedRangeBound, Range, RangeBounds, RangeFrom, + RangeFull, RangeInclusive, RangeTo, RangeToInclusive, }; // Test the Range structs and syntax. @@ -71,6 +72,36 @@ fn test_range_to_inclusive() { } #[test] +fn test_range_contains() { + assert!(!(1u32..5).contains(&0u32)); + assert!((1u32..5).contains(&1u32)); + assert!((1u32..5).contains(&4u32)); + assert!(!(1u32..5).contains(&5u32)); + assert!(!(1u32..5).contains(&6u32)); +} + +#[test] +fn test_range_to_contains() { + assert!(!(1u32..=5).contains(&0)); + assert!((1u32..=5).contains(&1)); + assert!((1u32..=5).contains(&4)); + assert!((1u32..=5).contains(&5)); + assert!(!(1u32..=5).contains(&6)); +} + +// This test covers `RangeBounds::contains` when the start is excluded, +// which cannot be directly expressed by Rust's built-in range syntax. +#[test] +fn test_range_bounds_contains() { + let r = (Bound::Excluded(1u32), Bound::Included(5u32)); + assert!(!r.contains(&0)); + assert!(!r.contains(&1)); + assert!(r.contains(&3)); + assert!(r.contains(&5)); + assert!(!r.contains(&6)); +} + +#[test] fn test_range_is_empty() { assert!(!(0.0..10.0).is_empty()); assert!((-0.0..0.0).is_empty()); @@ -92,6 +123,34 @@ fn test_range_is_empty() { } #[test] +fn test_range_inclusive_end_bound() { + let mut r = 1u32..=1; + r.next().unwrap(); + assert!(!r.contains(&1)); +} + +#[test] +fn test_range_bounds() { + let r = (Bound::Included(1u32), Bound::Excluded(5u32)); + assert!(!r.contains(&0)); + assert!(r.contains(&1)); + assert!(r.contains(&3)); + assert!(!r.contains(&5)); + assert!(!r.contains(&6)); + + let r = (Bound::<u32>::Unbounded, Bound::Unbounded); + assert!(r.contains(&0)); + assert!(r.contains(&u32::MAX)); +} + +#[test] +fn test_one_sided_range_bound() { + assert!(matches!((..1u32).bound(), (OneSidedRangeBound::End, 1))); + assert!(matches!((1u32..).bound(), (OneSidedRangeBound::StartInclusive, 1))); + assert!(matches!((..=1u32).bound(), (OneSidedRangeBound::EndInclusive, 1))); +} + +#[test] fn test_bound_cloned_unbounded() { assert_eq!(Bound::<&u32>::Unbounded.cloned(), Bound::Unbounded); } @@ -240,3 +299,17 @@ fn deref_on_ref() { fn test_not_never() { if !return () {} } + +#[test] +fn test_fmt() { + let mut r = 1..=1; + assert_eq!(format!("{:?}", r), "1..=1"); + r.next().unwrap(); + assert_eq!(format!("{:?}", r), "1..=1 (exhausted)"); + + assert_eq!(format!("{:?}", 1..1), "1..1"); + assert_eq!(format!("{:?}", 1..), "1.."); + assert_eq!(format!("{:?}", ..1), "..1"); + assert_eq!(format!("{:?}", ..=1), "..=1"); + assert_eq!(format!("{:?}", ..), ".."); +} diff --git a/library/std/src/sys/platform_version/darwin/tests.rs b/library/std/src/sys/platform_version/darwin/tests.rs index eecd58ec79e..17b2cc18ec0 100644 --- a/library/std/src/sys/platform_version/darwin/tests.rs +++ b/library/std/src/sys/platform_version/darwin/tests.rs @@ -35,9 +35,9 @@ fn compare_against_sw_vers() { assert_eq!(__isOSVersionAtLeast(major, minor, subminor), 1); // One lower is available - assert_eq!(__isOSVersionAtLeast(major, minor, subminor.saturating_sub(1)), 1); - assert_eq!(__isOSVersionAtLeast(major, minor.saturating_sub(1), subminor), 1); - assert_eq!(__isOSVersionAtLeast(major.saturating_sub(1), minor, subminor), 1); + assert_eq!(__isOSVersionAtLeast(major, minor, (subminor as u32).saturating_sub(1) as i32), 1); + assert_eq!(__isOSVersionAtLeast(major, (minor as u32).saturating_sub(1) as i32, subminor), 1); + assert_eq!(__isOSVersionAtLeast((major as u32).saturating_sub(1) as i32, minor, subminor), 1); // One higher isn't available assert_eq!(__isOSVersionAtLeast(major, minor, subminor + 1), 0); diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md index 6c5b48d8c8f..9ad9cb5b526 100644 --- a/src/doc/rustc/src/platform-support.md +++ b/src/doc/rustc/src/platform-support.md @@ -95,8 +95,8 @@ target | notes `arm-unknown-linux-gnueabihf` | Armv6 Linux, hardfloat (kernel 3.2+, glibc 2.17) `armv7-unknown-linux-gnueabihf` | Armv7-A Linux, hardfloat (kernel 3.2+, glibc 2.17) [`armv7-unknown-linux-ohos`](platform-support/openharmony.md) | Armv7-A OpenHarmony -[`loongarch64-unknown-linux-gnu`](platform-support/loongarch-linux.md) | LoongArch64 Linux, LP64D ABI (kernel 5.19+, glibc 2.36) -[`loongarch64-unknown-linux-musl`](platform-support/loongarch-linux.md) | LoongArch64 Linux, LP64D ABI (kernel 5.19+, musl 1.2.5) +[`loongarch64-unknown-linux-gnu`](platform-support/loongarch-linux.md) | LoongArch64 Linux, LP64D ABI (kernel 5.19+, glibc 2.36), LSX required +[`loongarch64-unknown-linux-musl`](platform-support/loongarch-linux.md) | LoongArch64 Linux, LP64D ABI (kernel 5.19+, musl 1.2.5), LSX required [`i686-pc-windows-gnu`](platform-support/windows-gnu.md) | 32-bit MinGW (Windows 10+, Windows Server 2016+, Pentium 4) [^x86_32-floats-return-ABI] [^win32-msvc-alignment] `powerpc-unknown-linux-gnu` | PowerPC Linux (kernel 3.2+, glibc 2.17) `powerpc64-unknown-linux-gnu` | PPC64 Linux (kernel 3.2+, glibc 2.17) diff --git a/src/doc/rustc/src/platform-support/loongarch-linux.md b/src/doc/rustc/src/platform-support/loongarch-linux.md index 817d3a89230..a923218282c 100644 --- a/src/doc/rustc/src/platform-support/loongarch-linux.md +++ b/src/doc/rustc/src/platform-support/loongarch-linux.md @@ -7,8 +7,8 @@ LoongArch is a RISC ISA developed by Loongson Technology Corporation Limited. | Target | Description | |--------|-------------| -| `loongarch64-unknown-linux-gnu` | LoongArch64 Linux, LP64D ABI (kernel 5.19, glibc 2.36) | -| `loongarch64-unknown-linux-musl` | LoongArch64 Linux, LP64D ABI (kernel 5.19, musl 1.2.5) | +| `loongarch64-unknown-linux-gnu` | LoongArch64 Linux, LP64D ABI (kernel 5.19, glibc 2.36), LSX required | +| `loongarch64-unknown-linux-musl` | LoongArch64 Linux, LP64D ABI (kernel 5.19, musl 1.2.5), LSX required | These support both native and cross builds, and have full support for `std`. @@ -23,8 +23,6 @@ Reference material: ## Target maintainers [@heiher](https://github.com/heiher) -[@xiangzhai](https://github.com/xiangzhai) -[@zhaixiaojuan](https://github.com/zhaixiaojuan) [@xen0n](https://github.com/xen0n) ## Requirements @@ -46,8 +44,8 @@ The targets require a reasonably up-to-date LoongArch toolchain on the host. Currently the following components are used by the Rust CI to build the target, and the versions can be seen as the minimum requirement: -* GNU Binutils 2.40 -* GCC 13.x +* GNU Binutils 2.42 +* GCC 14.x * glibc 2.36 * linux-headers 5.19 @@ -59,6 +57,11 @@ for newer LoongArch ELF relocation types, among other features. Recent LLVM/Clang toolchains may be able to build the targets, but are not currently being actively tested. +### CPU features + +These targets require the double-precision floating-point and LSX (LoongArch +SIMD Extension) features. + ## Building These targets are distributed through `rustup`, and otherwise require no diff --git a/src/tools/clippy/clippy_lints/src/missing_asserts_for_indexing.rs b/src/tools/clippy/clippy_lints/src/missing_asserts_for_indexing.rs index 788a04357b1..cf0c85990b1 100644 --- a/src/tools/clippy/clippy_lints/src/missing_asserts_for_indexing.rs +++ b/src/tools/clippy/clippy_lints/src/missing_asserts_for_indexing.rs @@ -11,7 +11,7 @@ use rustc_ast::{BinOpKind, LitKind, RangeLimits}; use rustc_data_structures::packed::Pu128; use rustc_data_structures::unhash::UnindexMap; use rustc_errors::{Applicability, Diag}; -use rustc_hir::{Body, Expr, ExprKind}; +use rustc_hir::{Block, Body, Expr, ExprKind, UnOp}; use rustc_lint::{LateContext, LateLintPass}; use rustc_session::declare_lint_pass; use rustc_span::source_map::Spanned; @@ -135,12 +135,12 @@ fn assert_len_expr<'hir>( cx: &LateContext<'_>, expr: &'hir Expr<'hir>, ) -> Option<(LengthComparison, usize, &'hir Expr<'hir>)> { - let (cmp, asserted_len, slice_len) = if let Some( - higher::IfLetOrMatch::Match(cond, [_, then], _) - ) = higher::IfLetOrMatch::parse(cx, expr) - && let ExprKind::Binary(bin_op, left, right) = &cond.kind + let (cmp, asserted_len, slice_len) = if let Some(higher::If { cond, then, .. }) = higher::If::hir(expr) + && let ExprKind::Unary(UnOp::Not, condition) = &cond.kind + && let ExprKind::Binary(bin_op, left, right) = &condition.kind // check if `then` block has a never type expression - && cx.typeck_results().expr_ty(then.body).is_never() + && let ExprKind::Block(Block { expr: Some(then_expr), .. }, _) = then.kind + && cx.typeck_results().expr_ty(then_expr).is_never() { len_comparison(bin_op.node, left, right)? } else if let Some((macro_call, bin_op)) = first_node_macro_backtrace(cx, expr).find_map(|macro_call| { diff --git a/src/tools/clippy/tests/ui/const_is_empty.rs b/src/tools/clippy/tests/ui/const_is_empty.rs index 63c6342a323..8bb4f0e5d97 100644 --- a/src/tools/clippy/tests/ui/const_is_empty.rs +++ b/src/tools/clippy/tests/ui/const_is_empty.rs @@ -196,7 +196,6 @@ fn issue_13106() { const { assert!(EMPTY_STR.is_empty()); - //~^ const_is_empty } const { diff --git a/src/tools/clippy/tests/ui/const_is_empty.stderr b/src/tools/clippy/tests/ui/const_is_empty.stderr index 9a42518698e..2ba189058e8 100644 --- a/src/tools/clippy/tests/ui/const_is_empty.stderr +++ b/src/tools/clippy/tests/ui/const_is_empty.stderr @@ -158,16 +158,10 @@ LL | let _ = val.is_empty(); | ^^^^^^^^^^^^^^ error: this expression always evaluates to true - --> tests/ui/const_is_empty.rs:198:17 - | -LL | assert!(EMPTY_STR.is_empty()); - | ^^^^^^^^^^^^^^^^^^^^ - -error: this expression always evaluates to true - --> tests/ui/const_is_empty.rs:203:9 + --> tests/ui/const_is_empty.rs:202:9 | LL | EMPTY_STR.is_empty(); | ^^^^^^^^^^^^^^^^^^^^ -error: aborting due to 28 previous errors +error: aborting due to 27 previous errors diff --git a/src/tools/clippy/tests/ui/incompatible_msrv.rs b/src/tools/clippy/tests/ui/incompatible_msrv.rs index 882f909e30c..f7f21e1850d 100644 --- a/src/tools/clippy/tests/ui/incompatible_msrv.rs +++ b/src/tools/clippy/tests/ui/incompatible_msrv.rs @@ -1,6 +1,6 @@ #![warn(clippy::incompatible_msrv)] #![feature(custom_inner_attributes)] -#![allow(stable_features, clippy::diverging_sub_expression)] +#![allow(stable_features)] #![feature(strict_provenance)] // For use in test #![clippy::msrv = "1.3.0"] diff --git a/tests/ui/abi/simd-abi-checks-s390x.rs b/tests/ui/abi/simd-abi-checks-s390x.rs index 877a25e8b08..75232a66ab0 100644 --- a/tests/ui/abi/simd-abi-checks-s390x.rs +++ b/tests/ui/abi/simd-abi-checks-s390x.rs @@ -8,6 +8,7 @@ // FIXME: +soft-float itself doesn't set -vector //@[z13_soft_float] compile-flags: --target s390x-unknown-linux-gnu -C target-cpu=z13 -C target-feature=-vector,+soft-float //@[z13_soft_float] needs-llvm-components: systemz +//[z13_soft_float]~? WARN must be disabled to ensure that the ABI of the current target can be implemented correctly #![feature(no_core, repr_simd, s390x_target_feature)] #![no_core] diff --git a/tests/ui/abi/simd-abi-checks-s390x.z10.stderr b/tests/ui/abi/simd-abi-checks-s390x.z10.stderr index c1c4e90f3cf..e1cfa373c63 100644 --- a/tests/ui/abi/simd-abi-checks-s390x.z10.stderr +++ b/tests/ui/abi/simd-abi-checks-s390x.z10.stderr @@ -1,5 +1,5 @@ error: this function definition uses SIMD vector type `i8x8` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:38:1 + --> $DIR/simd-abi-checks-s390x.rs:39:1 | LL | extern "C" fn vector_ret_small(x: &i8x8) -> i8x8 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -7,7 +7,7 @@ LL | extern "C" fn vector_ret_small(x: &i8x8) -> i8x8 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `i8x16` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:43:1 + --> $DIR/simd-abi-checks-s390x.rs:44:1 | LL | extern "C" fn vector_ret(x: &i8x16) -> i8x16 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -15,7 +15,7 @@ LL | extern "C" fn vector_ret(x: &i8x16) -> i8x16 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `TransparentWrapper<i8x8>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:89:1 + --> $DIR/simd-abi-checks-s390x.rs:90:1 | LL | / extern "C" fn vector_transparent_wrapper_ret_small( LL | | x: &TransparentWrapper<i8x8>, @@ -25,7 +25,7 @@ LL | | ) -> TransparentWrapper<i8x8> { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `TransparentWrapper<i8x16>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:96:1 + --> $DIR/simd-abi-checks-s390x.rs:97:1 | LL | / extern "C" fn vector_transparent_wrapper_ret( LL | | x: &TransparentWrapper<i8x16>, @@ -35,7 +35,7 @@ LL | | ) -> TransparentWrapper<i8x16> { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `i8x8` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:111:1 + --> $DIR/simd-abi-checks-s390x.rs:112:1 | LL | extern "C" fn vector_arg_small(x: i8x8) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -43,7 +43,7 @@ LL | extern "C" fn vector_arg_small(x: i8x8) -> i64 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `i8x16` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:116:1 + --> $DIR/simd-abi-checks-s390x.rs:117:1 | LL | extern "C" fn vector_arg(x: i8x16) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -51,7 +51,7 @@ LL | extern "C" fn vector_arg(x: i8x16) -> i64 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `Wrapper<i8x8>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:127:1 + --> $DIR/simd-abi-checks-s390x.rs:128:1 | LL | extern "C" fn vector_wrapper_arg_small(x: Wrapper<i8x8>) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -59,7 +59,7 @@ LL | extern "C" fn vector_wrapper_arg_small(x: Wrapper<i8x8>) -> i64 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `Wrapper<i8x16>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:132:1 + --> $DIR/simd-abi-checks-s390x.rs:133:1 | LL | extern "C" fn vector_wrapper_arg(x: Wrapper<i8x16>) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -67,7 +67,7 @@ LL | extern "C" fn vector_wrapper_arg(x: Wrapper<i8x16>) -> i64 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `TransparentWrapper<i8x8>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:143:1 + --> $DIR/simd-abi-checks-s390x.rs:144:1 | LL | extern "C" fn vector_transparent_wrapper_arg_small(x: TransparentWrapper<i8x8>) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -75,7 +75,7 @@ LL | extern "C" fn vector_transparent_wrapper_arg_small(x: TransparentWrapper<i8 = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `TransparentWrapper<i8x16>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:148:1 + --> $DIR/simd-abi-checks-s390x.rs:149:1 | LL | extern "C" fn vector_transparent_wrapper_arg(x: TransparentWrapper<i8x16>) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here diff --git a/tests/ui/abi/simd-abi-checks-s390x.z13_no_vector.stderr b/tests/ui/abi/simd-abi-checks-s390x.z13_no_vector.stderr index c1c4e90f3cf..e1cfa373c63 100644 --- a/tests/ui/abi/simd-abi-checks-s390x.z13_no_vector.stderr +++ b/tests/ui/abi/simd-abi-checks-s390x.z13_no_vector.stderr @@ -1,5 +1,5 @@ error: this function definition uses SIMD vector type `i8x8` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:38:1 + --> $DIR/simd-abi-checks-s390x.rs:39:1 | LL | extern "C" fn vector_ret_small(x: &i8x8) -> i8x8 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -7,7 +7,7 @@ LL | extern "C" fn vector_ret_small(x: &i8x8) -> i8x8 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `i8x16` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:43:1 + --> $DIR/simd-abi-checks-s390x.rs:44:1 | LL | extern "C" fn vector_ret(x: &i8x16) -> i8x16 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -15,7 +15,7 @@ LL | extern "C" fn vector_ret(x: &i8x16) -> i8x16 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `TransparentWrapper<i8x8>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:89:1 + --> $DIR/simd-abi-checks-s390x.rs:90:1 | LL | / extern "C" fn vector_transparent_wrapper_ret_small( LL | | x: &TransparentWrapper<i8x8>, @@ -25,7 +25,7 @@ LL | | ) -> TransparentWrapper<i8x8> { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `TransparentWrapper<i8x16>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:96:1 + --> $DIR/simd-abi-checks-s390x.rs:97:1 | LL | / extern "C" fn vector_transparent_wrapper_ret( LL | | x: &TransparentWrapper<i8x16>, @@ -35,7 +35,7 @@ LL | | ) -> TransparentWrapper<i8x16> { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `i8x8` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:111:1 + --> $DIR/simd-abi-checks-s390x.rs:112:1 | LL | extern "C" fn vector_arg_small(x: i8x8) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -43,7 +43,7 @@ LL | extern "C" fn vector_arg_small(x: i8x8) -> i64 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `i8x16` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:116:1 + --> $DIR/simd-abi-checks-s390x.rs:117:1 | LL | extern "C" fn vector_arg(x: i8x16) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -51,7 +51,7 @@ LL | extern "C" fn vector_arg(x: i8x16) -> i64 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `Wrapper<i8x8>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:127:1 + --> $DIR/simd-abi-checks-s390x.rs:128:1 | LL | extern "C" fn vector_wrapper_arg_small(x: Wrapper<i8x8>) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -59,7 +59,7 @@ LL | extern "C" fn vector_wrapper_arg_small(x: Wrapper<i8x8>) -> i64 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `Wrapper<i8x16>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:132:1 + --> $DIR/simd-abi-checks-s390x.rs:133:1 | LL | extern "C" fn vector_wrapper_arg(x: Wrapper<i8x16>) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -67,7 +67,7 @@ LL | extern "C" fn vector_wrapper_arg(x: Wrapper<i8x16>) -> i64 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `TransparentWrapper<i8x8>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:143:1 + --> $DIR/simd-abi-checks-s390x.rs:144:1 | LL | extern "C" fn vector_transparent_wrapper_arg_small(x: TransparentWrapper<i8x8>) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -75,7 +75,7 @@ LL | extern "C" fn vector_transparent_wrapper_arg_small(x: TransparentWrapper<i8 = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `TransparentWrapper<i8x16>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:148:1 + --> $DIR/simd-abi-checks-s390x.rs:149:1 | LL | extern "C" fn vector_transparent_wrapper_arg(x: TransparentWrapper<i8x16>) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here diff --git a/tests/ui/abi/simd-abi-checks-s390x.z13_soft_float.stderr b/tests/ui/abi/simd-abi-checks-s390x.z13_soft_float.stderr index c1c4e90f3cf..577fcc23bf1 100644 --- a/tests/ui/abi/simd-abi-checks-s390x.z13_soft_float.stderr +++ b/tests/ui/abi/simd-abi-checks-s390x.z13_soft_float.stderr @@ -1,5 +1,10 @@ +warning: target feature `soft-float` must be disabled to ensure that the ABI of the current target can be implemented correctly + | + = note: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #116344 <https://github.com/rust-lang/rust/issues/116344> + error: this function definition uses SIMD vector type `i8x8` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:38:1 + --> $DIR/simd-abi-checks-s390x.rs:39:1 | LL | extern "C" fn vector_ret_small(x: &i8x8) -> i8x8 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -7,7 +12,7 @@ LL | extern "C" fn vector_ret_small(x: &i8x8) -> i8x8 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `i8x16` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:43:1 + --> $DIR/simd-abi-checks-s390x.rs:44:1 | LL | extern "C" fn vector_ret(x: &i8x16) -> i8x16 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -15,7 +20,7 @@ LL | extern "C" fn vector_ret(x: &i8x16) -> i8x16 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `TransparentWrapper<i8x8>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:89:1 + --> $DIR/simd-abi-checks-s390x.rs:90:1 | LL | / extern "C" fn vector_transparent_wrapper_ret_small( LL | | x: &TransparentWrapper<i8x8>, @@ -25,7 +30,7 @@ LL | | ) -> TransparentWrapper<i8x8> { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `TransparentWrapper<i8x16>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:96:1 + --> $DIR/simd-abi-checks-s390x.rs:97:1 | LL | / extern "C" fn vector_transparent_wrapper_ret( LL | | x: &TransparentWrapper<i8x16>, @@ -35,7 +40,7 @@ LL | | ) -> TransparentWrapper<i8x16> { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `i8x8` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:111:1 + --> $DIR/simd-abi-checks-s390x.rs:112:1 | LL | extern "C" fn vector_arg_small(x: i8x8) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -43,7 +48,7 @@ LL | extern "C" fn vector_arg_small(x: i8x8) -> i64 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `i8x16` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:116:1 + --> $DIR/simd-abi-checks-s390x.rs:117:1 | LL | extern "C" fn vector_arg(x: i8x16) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -51,7 +56,7 @@ LL | extern "C" fn vector_arg(x: i8x16) -> i64 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `Wrapper<i8x8>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:127:1 + --> $DIR/simd-abi-checks-s390x.rs:128:1 | LL | extern "C" fn vector_wrapper_arg_small(x: Wrapper<i8x8>) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -59,7 +64,7 @@ LL | extern "C" fn vector_wrapper_arg_small(x: Wrapper<i8x8>) -> i64 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `Wrapper<i8x16>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:132:1 + --> $DIR/simd-abi-checks-s390x.rs:133:1 | LL | extern "C" fn vector_wrapper_arg(x: Wrapper<i8x16>) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -67,7 +72,7 @@ LL | extern "C" fn vector_wrapper_arg(x: Wrapper<i8x16>) -> i64 { = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `TransparentWrapper<i8x8>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:143:1 + --> $DIR/simd-abi-checks-s390x.rs:144:1 | LL | extern "C" fn vector_transparent_wrapper_arg_small(x: TransparentWrapper<i8x8>) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -75,12 +80,12 @@ LL | extern "C" fn vector_transparent_wrapper_arg_small(x: TransparentWrapper<i8 = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) error: this function definition uses SIMD vector type `TransparentWrapper<i8x16>` which (with the chosen ABI) requires the `vector` target feature, which is not enabled - --> $DIR/simd-abi-checks-s390x.rs:148:1 + --> $DIR/simd-abi-checks-s390x.rs:149:1 | LL | extern "C" fn vector_transparent_wrapper_arg(x: TransparentWrapper<i8x16>) -> i64 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here | = help: consider enabling it globally (`-C target-feature=+vector`) or locally (`#[target_feature(enable="vector")]`) -error: aborting due to 10 previous errors +error: aborting due to 10 previous errors; 1 warning emitted diff --git a/tests/ui/async-await/async-fn/macro-async-trait-bound-theoretical-regression.rs b/tests/ui/async-await/async-fn/macro-async-trait-bound-theoretical-regression.rs index ea67831b68e..a13a255d536 100644 --- a/tests/ui/async-await/async-fn/macro-async-trait-bound-theoretical-regression.rs +++ b/tests/ui/async-await/async-fn/macro-async-trait-bound-theoretical-regression.rs @@ -1,21 +1,22 @@ // Demonstrates and records a theoretical regressions / breaking changes caused by the // introduction of async trait bounds. -// Setting the edition to 2018 since we don't regress `demo! { dyn async }` in Rust <2018. +// Setting the edition to >2015 since we didn't regress `demo! { dyn async }` in Rust 2015. //@ edition:2018 macro_rules! demo { - ($ty:ty) => { compile_error!("ty"); }; + ($ty:ty) => { compile_error!("ty"); }; // KEEP THIS RULE FIRST AND AS IS! //~^ ERROR ty //~| ERROR ty - (impl $c:ident Trait) => {}; - (dyn $c:ident Trait) => {}; + + // DON'T MODIFY THE MATCHERS BELOW UNLESS THE ASYNC TRAIT MODIFIER SYNTAX CHANGES! + + (impl $c:ident Trait) => { /* KEEP THIS EMPTY! */ }; + (dyn $c:ident Trait) => { /* KEEP THIS EMPTY! */ }; } -demo! { impl async Trait } -//~^ ERROR `async` trait bounds are unstable +demo! { impl async Trait } //~ ERROR `async` trait bounds are unstable -demo! { dyn async Trait } -//~^ ERROR `async` trait bounds are unstable +demo! { dyn async Trait } //~ ERROR `async` trait bounds are unstable fn main() {} diff --git a/tests/ui/async-await/async-fn/macro-async-trait-bound-theoretical-regression.stderr b/tests/ui/async-await/async-fn/macro-async-trait-bound-theoretical-regression.stderr index 6c3044e64d2..0292c53fb1c 100644 --- a/tests/ui/async-await/async-fn/macro-async-trait-bound-theoretical-regression.stderr +++ b/tests/ui/async-await/async-fn/macro-async-trait-bound-theoretical-regression.stderr @@ -1,7 +1,7 @@ error: ty --> $DIR/macro-async-trait-bound-theoretical-regression.rs:8:19 | -LL | ($ty:ty) => { compile_error!("ty"); }; +LL | ($ty:ty) => { compile_error!("ty"); }; // KEEP THIS RULE FIRST AND AS IS! | ^^^^^^^^^^^^^^^^^^^^ ... LL | demo! { impl async Trait } @@ -12,7 +12,7 @@ LL | demo! { impl async Trait } error: ty --> $DIR/macro-async-trait-bound-theoretical-regression.rs:8:19 | -LL | ($ty:ty) => { compile_error!("ty"); }; +LL | ($ty:ty) => { compile_error!("ty"); }; // KEEP THIS RULE FIRST AND AS IS! | ^^^^^^^^^^^^^^^^^^^^ ... LL | demo! { dyn async Trait } @@ -21,7 +21,7 @@ LL | demo! { dyn async Trait } = note: this error originates in the macro `demo` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0658]: `async` trait bounds are unstable - --> $DIR/macro-async-trait-bound-theoretical-regression.rs:15:14 + --> $DIR/macro-async-trait-bound-theoretical-regression.rs:18:14 | LL | demo! { impl async Trait } | ^^^^^ @@ -32,7 +32,7 @@ LL | demo! { impl async Trait } = help: use the desugared name of the async trait, such as `AsyncFn` error[E0658]: `async` trait bounds are unstable - --> $DIR/macro-async-trait-bound-theoretical-regression.rs:18:13 + --> $DIR/macro-async-trait-bound-theoretical-regression.rs:20:13 | LL | demo! { dyn async Trait } | ^^^^^ diff --git a/tests/ui/codemap_tests/issue-28308.rs b/tests/ui/codemap_tests/issue-28308.rs index b0e04d0f1f6..81493f8c453 100644 --- a/tests/ui/codemap_tests/issue-28308.rs +++ b/tests/ui/codemap_tests/issue-28308.rs @@ -1,16 +1,4 @@ fn main() { - assert!("foo"); //~ ERROR mismatched types - //~^ NOTE expected `bool`, found `str` - //~| NOTE in this expansion of assert! - let x = Some(&1); - assert!(x); //~ ERROR mismatched types - //~^ NOTE expected `bool`, found `Option<&{integer}>` - //~| NOTE expected enum `bool` - //~| NOTE in this expansion of assert! - //~| NOTE in this expansion of assert! - assert!(x, ""); //~ ERROR mismatched types - //~^ NOTE expected `bool`, found `Option<&{integer}>` - //~| NOTE expected enum `bool` - //~| NOTE in this expansion of assert! - //~| NOTE in this expansion of assert! + assert!("foo"); + //~^ ERROR cannot apply unary operator `!` } diff --git a/tests/ui/codemap_tests/issue-28308.stderr b/tests/ui/codemap_tests/issue-28308.stderr index e84ceb44aac..7bc9e05dfc0 100644 --- a/tests/ui/codemap_tests/issue-28308.stderr +++ b/tests/ui/codemap_tests/issue-28308.stderr @@ -1,27 +1,9 @@ -error[E0308]: mismatched types - --> $DIR/issue-28308.rs:2:13 +error[E0600]: cannot apply unary operator `!` to type `&'static str` + --> $DIR/issue-28308.rs:2:5 | LL | assert!("foo"); - | ^^^^^ expected `bool`, found `str` + | ^^^^^^^^^^^^^^ cannot apply unary operator `!` -error[E0308]: mismatched types - --> $DIR/issue-28308.rs:6:13 - | -LL | assert!(x); - | ^ expected `bool`, found `Option<&{integer}>` - | - = note: expected enum `bool` - found type `Option<&{integer}>` - -error[E0308]: mismatched types - --> $DIR/issue-28308.rs:11:13 - | -LL | assert!(x, ""); - | ^ expected `bool`, found `Option<&{integer}>` - | - = note: expected enum `bool` - found type `Option<&{integer}>` - -error: aborting due to 3 previous errors +error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0308`. +For more information about this error, try `rustc --explain E0600`. diff --git a/tests/ui/consts/control-flow/assert.stderr b/tests/ui/consts/control-flow/assert.stderr index deaad6abbcc..026097a6ba0 100644 --- a/tests/ui/consts/control-flow/assert.stderr +++ b/tests/ui/consts/control-flow/assert.stderr @@ -1,8 +1,8 @@ error[E0080]: evaluation panicked: assertion failed: false - --> $DIR/assert.rs:5:23 + --> $DIR/assert.rs:5:15 | LL | const _: () = assert!(false); - | ^^^^^ evaluation of `_` failed here + | ^^^^^^^^^^^^^^ evaluation of `_` failed here error: aborting due to 1 previous error diff --git a/tests/ui/generics/post_monomorphization_error_backtrace.stderr b/tests/ui/generics/post_monomorphization_error_backtrace.stderr index 92c7df73638..6953414f0c2 100644 --- a/tests/ui/generics/post_monomorphization_error_backtrace.stderr +++ b/tests/ui/generics/post_monomorphization_error_backtrace.stderr @@ -1,8 +1,8 @@ error[E0080]: evaluation panicked: assertion failed: std::mem::size_of::<T>() == 0 - --> $DIR/post_monomorphization_error_backtrace.rs:6:31 + --> $DIR/post_monomorphization_error_backtrace.rs:6:23 | LL | const V: () = assert!(std::mem::size_of::<T>() == 0); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `assert_zst::F::<u32>::V` failed here + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `assert_zst::F::<u32>::V` failed here note: erroneous constant encountered --> $DIR/post_monomorphization_error_backtrace.rs:14:5 @@ -17,10 +17,10 @@ LL | assert_zst::<U>() | ^^^^^^^^^^^^^^^^^ error[E0080]: evaluation panicked: assertion failed: std::mem::size_of::<T>() == 0 - --> $DIR/post_monomorphization_error_backtrace.rs:6:31 + --> $DIR/post_monomorphization_error_backtrace.rs:6:23 | LL | const V: () = assert!(std::mem::size_of::<T>() == 0); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `assert_zst::F::<i32>::V` failed here + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `assert_zst::F::<i32>::V` failed here note: erroneous constant encountered --> $DIR/post_monomorphization_error_backtrace.rs:14:5 diff --git a/tests/ui/inline-const/const-expr-generic-err.stderr b/tests/ui/inline-const/const-expr-generic-err.stderr index e053e88db17..26039ba6d44 100644 --- a/tests/ui/inline-const/const-expr-generic-err.stderr +++ b/tests/ui/inline-const/const-expr-generic-err.stderr @@ -1,8 +1,8 @@ error[E0080]: evaluation panicked: assertion failed: std::mem::size_of::<T>() == 0 - --> $DIR/const-expr-generic-err.rs:4:21 + --> $DIR/const-expr-generic-err.rs:4:13 | LL | const { assert!(std::mem::size_of::<T>() == 0); } - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `foo::<i32>::{constant#0}` failed here + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation of `foo::<i32>::{constant#0}` failed here note: erroneous constant encountered --> $DIR/const-expr-generic-err.rs:4:5 diff --git a/tests/ui/intrinsics/panic-uninitialized-zeroed.rs b/tests/ui/intrinsics/panic-uninitialized-zeroed.rs index cdf8aa85482..db2b4a6ad20 100644 --- a/tests/ui/intrinsics/panic-uninitialized-zeroed.rs +++ b/tests/ui/intrinsics/panic-uninitialized-zeroed.rs @@ -5,9 +5,10 @@ //@ [strict]compile-flags: -Zstrict-init-checks //@ needs-subprocess //@ ignore-backends: gcc +//@ edition:2024 #![allow(deprecated, invalid_value)] -#![feature(never_type)] +#![feature(never_type, rustc_private)] use std::{ mem::{self, MaybeUninit, ManuallyDrop}, @@ -15,6 +16,9 @@ use std::{ num, }; +#[cfg(target_os = "linux")] +extern crate libc; + #[allow(dead_code)] struct Foo { x: u8, @@ -108,6 +112,17 @@ fn test_panic_msg_only_if_strict<T>(op: impl (FnOnce() -> T) + 'static, msg: &st fn main() { unsafe { + #[cfg(target_os = "linux")] + { + // This test causes a large amount of crashes. If a system + // has a /proc/sys/kernel/core_pattern that uploads core dumps enabled, + // it will take a long time to complete. Set dumpable to 0 to avoid that. + if libc::prctl(libc::PR_SET_DUMPABLE, 0) < 0 { + let err = std::io::Error::last_os_error(); + panic!("failed to disable core dumps {err:?}"); + } + } + // Uninhabited types test_panic_msg( || mem::uninitialized::<!>(), diff --git a/tests/ui/macros/assert-desugaring-145770.rs b/tests/ui/macros/assert-desugaring-145770.rs new file mode 100644 index 00000000000..d56e771ecfb --- /dev/null +++ b/tests/ui/macros/assert-desugaring-145770.rs @@ -0,0 +1,23 @@ +//! Regression test for #145770. +//! +//! Changing the `assert!` desugaring from an `if !cond {}` to `match` expression is +//! backwards-incompatible, and may need to be done over an edition boundary or limit editions for +//! which the desguaring change impacts. + +//@ check-pass + +#[derive(Debug)] +struct F { + data: bool +} + +impl std::ops::Not for F { + type Output = bool; + fn not(self) -> Self::Output { !self.data } +} + +fn main() { + let f = F { data: true }; + + assert!(f); +} diff --git a/tests/ui/macros/assert-macro-lifetimes.rs b/tests/ui/macros/assert-macro-lifetimes.rs deleted file mode 100644 index cc259283204..00000000000 --- a/tests/ui/macros/assert-macro-lifetimes.rs +++ /dev/null @@ -1,8 +0,0 @@ -//@ check-pass -#[derive(PartialEq, Eq, Hash)] -struct S; -fn main() { - let foo = std::rc::Rc::new(std::cell::RefCell::new(std::collections::HashMap::<S, S>::new())); - // Ensure that the lifetimes of the borrow do not leak past the end of `main`. - assert!(matches!(foo.borrow().get(&S).unwrap(), S)) -} diff --git a/tests/ui/mir/alignment/packed.rs b/tests/ui/mir/alignment/packed.rs index aa79880a21a..cf908365e1a 100644 --- a/tests/ui/mir/alignment/packed.rs +++ b/tests/ui/mir/alignment/packed.rs @@ -12,7 +12,7 @@ fn main() { // Test that we can use addr_of! to get the address of a packed member which according to its // type is not aligned, but because it is a projection from a packed type is a valid place. let ptr0 = std::ptr::addr_of!(memory[0].tail); - let ptr1 = std::ptr::addr_of!(memory[1].tail); + let ptr1 = std::ptr::addr_of!(memory[0].tail); // Even if ptr0 happens to be aligned by chance, ptr1 is not. assert!(!ptr0.is_aligned() || !ptr1.is_aligned()); diff --git a/tests/ui/simd/const-err-trumps-simd-err.stderr b/tests/ui/simd/const-err-trumps-simd-err.stderr index 6d25a28c92c..93d1fce637f 100644 --- a/tests/ui/simd/const-err-trumps-simd-err.stderr +++ b/tests/ui/simd/const-err-trumps-simd-err.stderr @@ -1,8 +1,8 @@ error[E0080]: evaluation panicked: assertion failed: LANE < 4 - --> $DIR/const-err-trumps-simd-err.rs:17:21 + --> $DIR/const-err-trumps-simd-err.rs:17:13 | LL | const { assert!(LANE < 4); } // the error should be here... - | ^^^^^^^^ evaluation of `get_elem::<4>::{constant#0}` failed here + | ^^^^^^^^^^^^^^^^^ evaluation of `get_elem::<4>::{constant#0}` failed here note: erroneous constant encountered --> $DIR/const-err-trumps-simd-err.rs:17:5 diff --git a/tests/ui/traits/const-traits/macro-bare-trait-objects-const-trait-bounds.rs b/tests/ui/traits/const-traits/macro-bare-trait-objects-const-trait-bounds.rs index ee04f74c8a6..9b03ec7553d 100644 --- a/tests/ui/traits/const-traits/macro-bare-trait-objects-const-trait-bounds.rs +++ b/tests/ui/traits/const-traits/macro-bare-trait-objects-const-trait-bounds.rs @@ -1,24 +1,23 @@ -// Ensure that we don't consider `const Trait` to -// match the macro fragment specifier `ty` as that would be a breaking -// change theoretically speaking. Syntactically trait object types can -// be "bare", i.e., lack the prefix `dyn`. -// By contrast, `?Trait` *does* match `ty` and therefore an arm like -// `?$Trait:path` would never be reached. -// See `parser/macro/mbe-bare-trait-object-maybe-trait-bound.rs`. -// `[const] Trait` is already an error for a `ty` fragment, -// so we do not need to prevent that. +// Ensure that we don't consider `const Trait` to match the macro fragment specifier `ty` +// as that would be a breaking change theoretically speaking. +// +// Syntactically trait object types can be "bare", i.e., lack the prefix `dyn`. +// By contrast, `?Trait` *does* match `ty` and therefore an arm like `?$Trait:path` +// would never be reached. See `parser/macro/macro-bare-trait-object-maybe-trait-bound.rs`. + +//@ check-pass (KEEP THIS AS A PASSING TEST!) macro_rules! check { - ($Type:ty) => { - compile_error!("ty"); - }; - (const $Trait:path) => {}; - ([const] $Trait:path) => { [const] Trait }; + ($ty:ty) => { compile_error!("ty"); }; // KEEP THIS RULE FIRST AND AS IS! + + // DON'T MODIFY THE MATCHERS BELOW UNLESS THE CONST TRAIT MODIFIER SYNTAX CHANGES! + + (const $Trait:path) => { /* KEEP THIS EMPTY! */ }; + // We don't need to check `[const] Trait` here since that matches the `ty` fragment + // already anyway since `[` may begin a slice or array type. However, it'll then + // subsequently fail due to #146122 (section 3). } check! { const Trait } -check! { [const] Trait } -//~^ ERROR: expected identifier, found `]` -//~| ERROR: const trait impls are experimental fn main() {} diff --git a/tests/ui/traits/const-traits/macro-bare-trait-objects-const-trait-bounds.stderr b/tests/ui/traits/const-traits/macro-bare-trait-objects-const-trait-bounds.stderr deleted file mode 100644 index a4e77154b17..00000000000 --- a/tests/ui/traits/const-traits/macro-bare-trait-objects-const-trait-bounds.stderr +++ /dev/null @@ -1,22 +0,0 @@ -error: expected identifier, found `]` - --> $DIR/macro-bare-trait-objects-const-trait-bounds.rs:20:16 - | -LL | ($Type:ty) => { - | -------- while parsing argument for this `ty` macro fragment -... -LL | check! { [const] Trait } - | ^ expected identifier - -error[E0658]: const trait impls are experimental - --> $DIR/macro-bare-trait-objects-const-trait-bounds.rs:20:11 - | -LL | check! { [const] Trait } - | ^^^^^ - | - = note: see issue #143874 <https://github.com/rust-lang/rust/issues/143874> for more information - = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable - = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date - -error: aborting due to 2 previous errors - -For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/traits/const-traits/macro-const-trait-bound-theoretical-regression.rs b/tests/ui/traits/const-traits/macro-const-trait-bound-theoretical-regression.rs index 35e964eacec..3f70ffa7d10 100644 --- a/tests/ui/traits/const-traits/macro-const-trait-bound-theoretical-regression.rs +++ b/tests/ui/traits/const-traits/macro-const-trait-bound-theoretical-regression.rs @@ -1,22 +1,32 @@ // Demonstrates and records a theoretical regressions / breaking changes caused by the -// introduction of const trait bounds. +// introduction of `const` and `[const]` trait bounds. -// Setting the edition to 2018 since we don't regress `demo! { dyn const }` in Rust <2018. +// Setting the edition to >2015 since we didn't regress `demo! { dyn const }` in Rust 2015. +// See also test `traits/const-traits/macro-dyn-const-2015.rs`. //@ edition:2018 trait Trait {} macro_rules! demo { - (impl $c:ident Trait) => { impl $c Trait {} }; - //~^ ERROR inherent - //~| WARN trait objects without an explicit `dyn` are deprecated - //~| WARN this is accepted in the current edition - (dyn $c:ident Trait) => { dyn $c Trait {} }; //~ ERROR macro expansion + ($ty:ty) => { compile_error!("ty"); }; // KEEP THIS RULE FIRST AND AS IS! + //~^ ERROR ty + //~| ERROR ty + //~| ERROR ty + //~| ERROR ty + + // DON'T MODIFY THE MATCHERS BELOW UNLESS THE CONST TRAIT MODIFIER SYNTAX CHANGES! + + (impl $c:ident Trait) => { /* KEEP THIS EMPTY! */ }; + (dyn $c:ident Trait) => { /* KEEP THIS EMPTY! */ }; + + (impl [const] Trait) => { /* KEEP THIS EMPTY! */ }; + (dyn [const] Trait) => { /* KEEP THIS EMPTY! */ }; } -demo! { impl const Trait } -//~^ ERROR const trait impls are experimental +demo! { impl const Trait } //~ ERROR const trait impls are experimental +demo! { dyn const Trait } //~ ERROR const trait impls are experimental -demo! { dyn const Trait } +demo! { impl [const] Trait } //~ ERROR const trait impls are experimental +demo! { dyn [const] Trait } //~ ERROR const trait impls are experimental fn main() {} diff --git a/tests/ui/traits/const-traits/macro-const-trait-bound-theoretical-regression.stderr b/tests/ui/traits/const-traits/macro-const-trait-bound-theoretical-regression.stderr index 7a4061d9c18..383936b9df1 100644 --- a/tests/ui/traits/const-traits/macro-const-trait-bound-theoretical-regression.stderr +++ b/tests/ui/traits/const-traits/macro-const-trait-bound-theoretical-regression.stderr @@ -1,31 +1,49 @@ -error: inherent impls cannot be const - --> $DIR/macro-const-trait-bound-theoretical-regression.rs:10:40 +error: ty + --> $DIR/macro-const-trait-bound-theoretical-regression.rs:11:19 | -LL | (impl $c:ident Trait) => { impl $c Trait {} }; - | ^^^^^ inherent impl for this type +LL | ($ty:ty) => { compile_error!("ty"); }; // KEEP THIS RULE FIRST AND AS IS! + | ^^^^^^^^^^^^^^^^^^^^ ... LL | demo! { impl const Trait } - | -------------------------- - | | | - | | const because of this - | in this macro invocation + | -------------------------- in this macro invocation | - = note: only trait implementations may be annotated with `const` = note: this error originates in the macro `demo` (in Nightly builds, run with -Z macro-backtrace for more info) -error: macro expansion ignores keyword `dyn` and any tokens following - --> $DIR/macro-const-trait-bound-theoretical-regression.rs:14:31 +error: ty + --> $DIR/macro-const-trait-bound-theoretical-regression.rs:11:19 | -LL | (dyn $c:ident Trait) => { dyn $c Trait {} }; - | ^^^ +LL | ($ty:ty) => { compile_error!("ty"); }; // KEEP THIS RULE FIRST AND AS IS! + | ^^^^^^^^^^^^^^^^^^^^ ... LL | demo! { dyn const Trait } - | ------------------------- caused by the macro expansion here + | ------------------------- in this macro invocation | - = note: the usage of `demo!` is likely invalid in item context + = note: this error originates in the macro `demo` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: ty + --> $DIR/macro-const-trait-bound-theoretical-regression.rs:11:19 + | +LL | ($ty:ty) => { compile_error!("ty"); }; // KEEP THIS RULE FIRST AND AS IS! + | ^^^^^^^^^^^^^^^^^^^^ +... +LL | demo! { impl [const] Trait } + | ---------------------------- in this macro invocation + | + = note: this error originates in the macro `demo` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: ty + --> $DIR/macro-const-trait-bound-theoretical-regression.rs:11:19 + | +LL | ($ty:ty) => { compile_error!("ty"); }; // KEEP THIS RULE FIRST AND AS IS! + | ^^^^^^^^^^^^^^^^^^^^ +... +LL | demo! { dyn [const] Trait } + | --------------------------- in this macro invocation + | + = note: this error originates in the macro `demo` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0658]: const trait impls are experimental - --> $DIR/macro-const-trait-bound-theoretical-regression.rs:17:14 + --> $DIR/macro-const-trait-bound-theoretical-regression.rs:26:14 | LL | demo! { impl const Trait } | ^^^^^ @@ -34,24 +52,36 @@ LL | demo! { impl const Trait } = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date -warning: trait objects without an explicit `dyn` are deprecated - --> $DIR/macro-const-trait-bound-theoretical-regression.rs:10:40 +error[E0658]: const trait impls are experimental + --> $DIR/macro-const-trait-bound-theoretical-regression.rs:27:13 | -LL | (impl $c:ident Trait) => { impl $c Trait {} }; - | ^^^^^ -... -LL | demo! { impl const Trait } - | -------------------------- in this macro invocation +LL | demo! { dyn const Trait } + | ^^^^^ | - = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! - = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html> - = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default - = note: this warning originates in the macro `demo` (in Nightly builds, run with -Z macro-backtrace for more info) -help: you might have intended to implement this trait for a given type + = note: see issue #143874 <https://github.com/rust-lang/rust/issues/143874> for more information + = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + +error[E0658]: const trait impls are experimental + --> $DIR/macro-const-trait-bound-theoretical-regression.rs:29:14 + | +LL | demo! { impl [const] Trait } + | ^^^^^^^ + | + = note: see issue #143874 <https://github.com/rust-lang/rust/issues/143874> for more information + = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + +error[E0658]: const trait impls are experimental + --> $DIR/macro-const-trait-bound-theoretical-regression.rs:30:13 | -LL | (impl $c:ident Trait) => { impl $c Trait for /* Type */ {} }; - | ++++++++++++++ +LL | demo! { dyn [const] Trait } + | ^^^^^^^ + | + = note: see issue #143874 <https://github.com/rust-lang/rust/issues/143874> for more information + = help: add `#![feature(const_trait_impl)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date -error: aborting due to 3 previous errors; 1 warning emitted +error: aborting due to 8 previous errors For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/traits/const-traits/macro-dyn-const-2015.rs b/tests/ui/traits/const-traits/macro-dyn-const-2015.rs index fadfbe66788..0dfa482b986 100644 --- a/tests/ui/traits/const-traits/macro-dyn-const-2015.rs +++ b/tests/ui/traits/const-traits/macro-dyn-const-2015.rs @@ -1,14 +1,19 @@ -// Ensure that the introduction of const trait bound didn't regress this code in Rust 2015. -// See also `mbe-const-trait-bound-theoretical-regression.rs`. +// Ensure that the introduction of `const` and `[const]` trait bounds didn't regress this +// Rust 2015 code. See also test `macro-const-trait-bound-theoretical-regression.rs`. //@ edition: 2015 -//@ check-pass +//@ check-pass (KEEP THIS AS A PASSING TEST!) macro_rules! check { - ($ty:ty) => { compile_error!("ty"); }; - (dyn $c:ident) => {}; + ($ty:ty) => { compile_error!("ty"); }; // KEEP THIS RULE FIRST AND AS IS! + + // DON'T MODIFY THE MATCHERS BELOW UNLESS THE CONST TRAIT MODIFIER SYNTAX CHANGES! + + (dyn $c:ident) => { /* KEEP THIS EMPTY! */ }; + (dyn [$c:ident]) => { /* KEEP THIS EMPTY! */ }; } check! { dyn const } +check! { dyn [const] } fn main() {} diff --git a/tests/ui/traits/const-traits/macro-maybe-const-trait-bounds.rs b/tests/ui/traits/const-traits/macro-maybe-const-trait-bounds.rs new file mode 100644 index 00000000000..75077577b8c --- /dev/null +++ b/tests/ui/traits/const-traits/macro-maybe-const-trait-bounds.rs @@ -0,0 +1,25 @@ +// Ensure that we don't consider `[` to begin trait bounds to contain breakages. +// Only `[const]` in its entirety begins a trait bound. +// See also test `macro-const-trait-bound-theoretical-regression.rs`. + +//@ check-pass (KEEP THIS AS A PASSING TEST!) +// Setting the edition to >2015 since we didn't regress `check! { dyn [const] Trait }` in Rust 2015. +// See also test `traits/const-traits/macro-dyn-const-2015.rs`. +//@ edition:2018 + +macro_rules! check { + ($ty:ty) => { compile_error!("ty"); }; // KEEP THIS RULE FIRST AND AS IS! + + // DON'T MODIFY THE MATCHERS BELOW UNLESS THE CONST TRAIT MODIFIER SYNTAX CHANGES! + + (dyn [$($any:tt)*] Trait) => { /* KEEP THIS EMPTY! */ }; + (impl [$($any:tt)*] Trait) => { /* KEEP THIS EMPTY! */ }; +} + +check!(dyn [T] Trait); + +// issue: <https://github.com/rust-lang/rust/issues/146417> +check!(impl [T] Trait); +check!(impl [T: Bound] Trait); + +fn main() {} diff --git a/tests/ui/transmutability/uninhabited.stderr b/tests/ui/transmutability/uninhabited.stderr index 9f289852809..4757daec997 100644 --- a/tests/ui/transmutability/uninhabited.stderr +++ b/tests/ui/transmutability/uninhabited.stderr @@ -41,10 +41,10 @@ LL | | }> | |__________^ required by this bound in `is_maybe_transmutable` error[E0080]: evaluation panicked: assertion failed: false - --> $DIR/uninhabited.rs:41:17 + --> $DIR/uninhabited.rs:41:9 | LL | assert!(false); - | ^^^^^ evaluation of `yawning_void_struct::_` failed here + | ^^^^^^^^^^^^^^ evaluation of `yawning_void_struct::_` failed here error[E0277]: `()` cannot be safely transmuted into `yawning_void_enum::Void` --> $DIR/uninhabited.rs:71:41 @@ -68,10 +68,10 @@ LL | | }> | |__________^ required by this bound in `is_maybe_transmutable` error[E0080]: evaluation panicked: assertion failed: false - --> $DIR/uninhabited.rs:63:17 + --> $DIR/uninhabited.rs:63:9 | LL | assert!(false); - | ^^^^^ evaluation of `yawning_void_enum::_` failed here + | ^^^^^^^^^^^^^^ evaluation of `yawning_void_enum::_` failed here error[E0277]: `u128` cannot be safely transmuted into `DistantVoid` --> $DIR/uninhabited.rs:92:43 @@ -95,10 +95,10 @@ LL | | }> | |__________^ required by this bound in `is_maybe_transmutable` error[E0080]: evaluation panicked: assertion failed: false - --> $DIR/uninhabited.rs:87:17 + --> $DIR/uninhabited.rs:87:9 | LL | assert!(false); - | ^^^^^ evaluation of `distant_void::_` failed here + | ^^^^^^^^^^^^^^ evaluation of `distant_void::_` failed here error[E0277]: `Src` cannot be safely transmuted into `issue_126267::Error` --> $DIR/uninhabited.rs:108:42 |