diff --git a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp index 4ed086ff42f..5ecf3aec65d 100644 --- a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp +++ b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp @@ -9,6 +9,7 @@ #include "llvm/Analysis/AliasAnalysis.h" #include "llvm/Analysis/TargetLibraryInfo.h" #include "llvm/Analysis/TargetTransformInfo.h" +#include "llvm/CodeGen/CommandFlags.h" #include "llvm/CodeGen/TargetSubtargetInfo.h" #include "llvm/IR/AutoUpgrade.h" #include "llvm/IR/AssemblyAnnotationWriter.h" @@ -50,6 +51,8 @@ using namespace llvm; +static codegen::RegisterCodeGenFlags CGF; + typedef struct LLVMOpaquePass *LLVMPassRef; typedef struct LLVMOpaqueTargetMachine *LLVMTargetMachineRef; @@ -422,7 +425,7 @@ extern "C" LLVMTargetMachineRef LLVMRustCreateTargetMachine( return nullptr; } - TargetOptions Options; + TargetOptions Options = codegen::InitTargetOptionsFromCodeGenFlags(Trip); Options.FloatABIType = FloatABI::Default; if (UseSoftFloat) { diff --git a/compiler/rustc_mir_transform/src/const_prop_lint.rs b/compiler/rustc_mir_transform/src/const_prop_lint.rs index 4b51beed095..b52827a1e88 100644 --- a/compiler/rustc_mir_transform/src/const_prop_lint.rs +++ b/compiler/rustc_mir_transform/src/const_prop_lint.rs @@ -39,6 +39,10 @@ impl<'tcx> MirLint<'tcx> for ConstProp { fn run_lint(&self, tcx: TyCtxt<'tcx>, body: &Body<'tcx>) { + if body.tainted_by_errors.is_some() { + return; + } + // will be evaluated by miri and produce its errors there if body.source.promoted.is_some() { return; diff --git a/compiler/rustc_privacy/src/lib.rs b/compiler/rustc_privacy/src/lib.rs index 906a36cdb25..aedc7b22725 100644 --- a/compiler/rustc_privacy/src/lib.rs +++ b/compiler/rustc_privacy/src/lib.rs @@ -1463,14 +1463,15 @@ fn check_def_id(&mut self, def_id: DefId, kind: &str, descr: &dyn fmt::Display) }; let vis = self.tcx.local_visibility(local_def_id); - let hir_id = self.tcx.hir().local_def_id_to_hir_id(local_def_id); let span = self.tcx.def_span(self.item_def_id.to_def_id()); let vis_span = self.tcx.def_span(def_id); if self.in_assoc_ty && !vis.is_at_least(self.required_visibility, self.tcx) { let vis_descr = match vis { ty::Visibility::Public => "public", ty::Visibility::Restricted(vis_def_id) => { - if vis_def_id == self.tcx.parent_module(hir_id).to_local_def_id() { + if vis_def_id + == self.tcx.parent_module_from_def_id(local_def_id).to_local_def_id() + { "private" } else if vis_def_id.is_top_level_module() { "crate-private" @@ -1504,7 +1505,7 @@ fn check_def_id(&mut self, def_id: DefId, kind: &str, descr: &dyn fmt::Display) }; self.tcx.emit_spanned_lint( lint, - hir_id, + self.tcx.hir().local_def_id_to_hir_id(self.item_def_id), span, PrivateInterfacesOrBoundsLint { item_span: span, diff --git a/library/core/src/mem/mod.rs b/library/core/src/mem/mod.rs index 732fcce0f29..bc701d97bbb 100644 --- a/library/core/src/mem/mod.rs +++ b/library/core/src/mem/mod.rs @@ -1126,6 +1126,11 @@ fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result { /// /// [Reference]: ../../reference/items/enumerations.html#custom-discriminant-values-for-fieldless-enumerations /// +/// The value of a [`Discriminant`] is independent of any *lifetimes* in `T`. As such, reading +/// or writing a `Discriminant>` as a `Discriminant>` (whether via [`transmute`] or +/// otherwise) is always sound. Note that this is **not** true for other kinds of generic +/// parameters; `Discriminant>` and `Discriminant>` might be incompatible. +/// /// # Examples /// /// This can be used to compare enums that carry data, while disregarding diff --git a/library/core/src/ptr/mut_ptr.rs b/library/core/src/ptr/mut_ptr.rs index 9dbb3f9d322..6d623b82c1c 100644 --- a/library/core/src/ptr/mut_ptr.rs +++ b/library/core/src/ptr/mut_ptr.rs @@ -109,7 +109,7 @@ pub const fn with_metadata_of(self, meta: *const U) -> *mut U /// with [`cast_mut`] on `*const T` and may have documentation value if used instead of implicit /// coercion. /// - /// [`cast_mut`]: #method.cast_mut + /// [`cast_mut`]: pointer::cast_mut #[stable(feature = "ptr_const_cast", since = "1.65.0")] #[rustc_const_stable(feature = "ptr_const_cast", since = "1.65.0")] #[rustc_diagnostic_item = "ptr_cast_const"] @@ -121,7 +121,7 @@ pub const fn cast_const(self) -> *const T { /// Casts a pointer to its raw bits. /// /// This is equivalent to `as usize`, but is more specific to enhance readability. - /// The inverse method is [`from_bits`](#method.from_bits-1). + /// The inverse method is [`from_bits`](pointer#method.from_bits-1). /// /// In particular, `*p as usize` and `p as usize` will both compile for /// pointers to numeric types but do very different things, so using this @@ -157,7 +157,7 @@ pub fn to_bits(self) -> usize /// Creates a pointer from its raw bits. /// /// This is equivalent to `as *mut T`, but is more specific to enhance readability. - /// The inverse method is [`to_bits`](#method.to_bits-1). + /// The inverse method is [`to_bits`](pointer#method.to_bits-1). /// /// # Examples /// @@ -307,7 +307,7 @@ pub const fn to_raw_parts(self) -> (*mut (), ::Metadata) { /// /// For the mutable counterpart see [`as_mut`]. /// - /// [`as_uninit_ref`]: #method.as_uninit_ref-1 + /// [`as_uninit_ref`]: pointer#method.as_uninit_ref-1 /// [`as_mut`]: #method.as_mut /// /// # Safety @@ -373,7 +373,7 @@ pub const fn to_raw_parts(self) -> (*mut (), ::Metadata) { /// /// For the mutable counterpart see [`as_uninit_mut`]. /// - /// [`as_ref`]: #method.as_ref-1 + /// [`as_ref`]: pointer#method.as_ref-1 /// [`as_uninit_mut`]: #method.as_uninit_mut /// /// # Safety @@ -628,7 +628,7 @@ pub fn mask(self, mask: usize) -> *mut T { /// For the shared counterpart see [`as_ref`]. /// /// [`as_uninit_mut`]: #method.as_uninit_mut - /// [`as_ref`]: #method.as_ref-1 + /// [`as_ref`]: pointer#method.as_ref-1 /// /// # Safety /// @@ -693,7 +693,7 @@ pub fn mask(self, mask: usize) -> *mut T { /// For the shared counterpart see [`as_uninit_ref`]. /// /// [`as_mut`]: #method.as_mut - /// [`as_uninit_ref`]: #method.as_uninit_ref-1 + /// [`as_uninit_ref`]: pointer#method.as_uninit_ref-1 /// /// # Safety /// @@ -783,7 +783,7 @@ pub const fn guaranteed_ne(self, other: *mut T) -> Option /// /// This function is the inverse of [`offset`]. /// - /// [`offset`]: #method.offset-1 + /// [`offset`]: pointer#method.offset-1 /// /// # Safety /// @@ -2064,7 +2064,7 @@ pub unsafe fn get_unchecked_mut(self, index: I) -> *mut I::Output /// /// For the mutable counterpart see [`as_uninit_slice_mut`]. /// - /// [`as_ref`]: #method.as_ref-1 + /// [`as_ref`]: pointer#method.as_ref-1 /// [`as_uninit_slice_mut`]: #method.as_uninit_slice_mut /// /// # Safety diff --git a/src/bootstrap/builder.rs b/src/bootstrap/builder.rs index a24a6a4636d..c62548875bf 100644 --- a/src/bootstrap/builder.rs +++ b/src/bootstrap/builder.rs @@ -302,8 +302,10 @@ fn from(kind: Kind) -> StepDescription { } } - fn maybe_run(&self, builder: &Builder<'_>, pathsets: Vec) { - if pathsets.iter().any(|set| self.is_excluded(builder, set)) { + fn maybe_run(&self, builder: &Builder<'_>, mut pathsets: Vec) { + pathsets.retain(|set| !self.is_excluded(builder, set)); + + if pathsets.is_empty() { return; } diff --git a/src/bootstrap/builder/tests.rs b/src/bootstrap/builder/tests.rs index 43b4a34fe5b..80e66622e8b 100644 --- a/src/bootstrap/builder/tests.rs +++ b/src/bootstrap/builder/tests.rs @@ -136,9 +136,9 @@ fn test_exclude_kind() { let mut config = configure("test", &["A"], &["A"]); // Ensure our test is valid, and `test::Rustc` would be run without the exclude. assert!(run_build(&[], config.clone()).contains::()); - // Ensure tests for rustc are skipped. + // Ensure tests for rustc are not skipped. config.skip = vec![path.clone()]; - assert!(!run_build(&[], config.clone()).contains::()); + assert!(run_build(&[], config.clone()).contains::()); // Ensure builds for rustc are not skipped. assert!(run_build(&[], config).contains::()); } diff --git a/src/ci/docker/host-x86_64/wasm32/Dockerfile b/src/ci/docker/host-x86_64/wasm32/Dockerfile index 02b4664eb55..0d0f1edd003 100644 --- a/src/ci/docker/host-x86_64/wasm32/Dockerfile +++ b/src/ci/docker/host-x86_64/wasm32/Dockerfile @@ -58,5 +58,6 @@ ENV NO_CHANGE_USER=1 RUN chown 10719 -R /emsdk-portable/ # Exclude library/alloc due to OOM in benches. +# FIXME: Fix std tests ENV SCRIPT python3 ../x.py test --stage 2 --host='' --target $TARGETS \ - --skip library/alloc + --skip library/alloc --skip library/std diff --git a/src/librustdoc/html/render/mod.rs b/src/librustdoc/html/render/mod.rs index aef8f1a74fb..a85e8356c2f 100644 --- a/src/librustdoc/html/render/mod.rs +++ b/src/librustdoc/html/render/mod.rs @@ -54,6 +54,7 @@ use rustc_hir::def_id::{DefId, DefIdSet}; use rustc_hir::Mutability; use rustc_middle::middle::stability; +use rustc_middle::ty::fast_reject::{DeepRejectCtxt, TreatParams}; use rustc_middle::ty::TyCtxt; use rustc_span::{ symbol::{sym, Symbol}, @@ -62,6 +63,7 @@ use serde::ser::{SerializeMap, SerializeSeq}; use serde::{Serialize, Serializer}; +use crate::clean::types::TypeAliasItem; use crate::clean::{self, ItemId, RenderedLink, SelfTy}; use crate::error::Error; use crate::formats::cache::Cache; @@ -1139,8 +1141,40 @@ fn render_assoc_items_inner( info!("Documenting associated items of {:?}", containing_item.name); let shared = Rc::clone(&cx.shared); let cache = &shared.cache; - let Some(v) = cache.impls.get(&it) else { return }; - let (non_trait, traits): (Vec<_>, _) = v.iter().partition(|i| i.inner_impl().trait_.is_none()); + let tcx = cx.tcx(); + let av = if let TypeAliasItem(ait) = &*containing_item.kind && + let aliased_clean_type = ait.item_type.as_ref().unwrap_or(&ait.type_) && + let Some(aliased_type_defid) = aliased_clean_type.def_id(cache) && + let Some(mut av) = cache.impls.get(&aliased_type_defid).cloned() && + let Some(alias_def_id) = containing_item.item_id.as_def_id() + { + // This branch of the compiler compares types structually, but does + // not check trait bounds. That's probably fine, since type aliases + // don't normally constrain on them anyway. + // https://github.com/rust-lang/rust/issues/21903 + // + // FIXME(lazy_type_alias): Once the feature is complete or stable, rewrite this to use type unification. + // Be aware of `tests/rustdoc/issue-112515-impl-ty-alias.rs` which might regress. + let aliased_ty = tcx.type_of(alias_def_id).skip_binder(); + let reject_cx = DeepRejectCtxt { + treat_obligation_params: TreatParams::AsCandidateKey, + }; + av.retain(|impl_| { + if let Some(impl_def_id) = impl_.impl_item.item_id.as_def_id() { + reject_cx.types_may_unify(aliased_ty, tcx.type_of(impl_def_id).skip_binder()) + } else { + false + } + }); + av + } else { + Vec::new() + }; + let blank = Vec::new(); + let v = cache.impls.get(&it).unwrap_or(&blank); + let (non_trait, traits): (Vec<_>, _) = + v.iter().chain(&av[..]).partition(|i| i.inner_impl().trait_.is_none()); + let mut saw_impls = FxHashSet::default(); if !non_trait.is_empty() { let mut tmp_buf = Buffer::html(); let (render_mode, id, class_html) = match what { @@ -1169,6 +1203,9 @@ fn render_assoc_items_inner( }; let mut impls_buf = Buffer::html(); for i in &non_trait { + if !saw_impls.insert(i.def_id()) { + continue; + } render_impl( &mut impls_buf, cx, @@ -1214,8 +1251,10 @@ fn render_assoc_items_inner( let (synthetic, concrete): (Vec<&Impl>, Vec<&Impl>) = traits.into_iter().partition(|t| t.inner_impl().kind.is_auto()); - let (blanket_impl, concrete): (Vec<&Impl>, _) = - concrete.into_iter().partition(|t| t.inner_impl().kind.is_blanket()); + let (blanket_impl, concrete): (Vec<&Impl>, _) = concrete + .into_iter() + .filter(|t| saw_impls.insert(t.def_id())) + .partition(|t| t.inner_impl().kind.is_blanket()); render_all_impls(w, cx, containing_item, &concrete, &synthetic, &blanket_impl); } diff --git a/tests/rustdoc/issue-32077-type-alias-impls.rs b/tests/rustdoc/issue-32077-type-alias-impls.rs new file mode 100644 index 00000000000..555d0579bee --- /dev/null +++ b/tests/rustdoc/issue-32077-type-alias-impls.rs @@ -0,0 +1,59 @@ +// Regression test for . + +#![crate_name = "foo"] + +pub struct GenericStruct(T); + +impl GenericStruct { + pub fn on_gen(arg: T) {} +} + +impl GenericStruct { + pub fn on_u32(arg: u32) {} +} + +pub trait Foo {} +pub trait Bar {} + +impl Foo for GenericStruct {} +impl Bar for GenericStruct {} + +// @has 'foo/type.TypedefStruct.html' +// We check that we have the implementation of the type alias itself. +// @has - '//*[@id="impl-TypedefStruct"]/h3' 'impl TypedefStruct' +// @has - '//*[@id="method.on_alias"]/h4' 'pub fn on_alias()' +// @has - '//*[@id="impl-GenericStruct%3CT%3E"]/h3' 'impl GenericStruct' +// @has - '//*[@id="method.on_gen"]/h4' 'pub fn on_gen(arg: T)' +// @has - '//*[@id="impl-Foo-for-GenericStruct%3CT%3E"]/h3' 'impl Foo for GenericStruct' +// This trait implementation doesn't match the type alias parameters so shouldn't appear in docs. +// @!has - '//h3' 'impl Bar for GenericStruct {}' +// Same goes for the `Deref` impl. +// @!has - '//h2' 'Methods from Deref' +pub type TypedefStruct = GenericStruct; + +impl TypedefStruct { + pub fn on_alias() {} +} + +impl std::ops::Deref for GenericStruct { + type Target = u32; + + fn deref(&self) -> &Self::Target { + &self.0 + } +} + +pub struct Wrap(GenericStruct); + +// @has 'foo/type.Alias.html' +// @has - '//h2' 'Methods from Deref' +// @has - '//*[@id="impl-Deref-for-Wrap%3CT%3E"]/h3' 'impl Deref for Wrap' +pub type Alias = Wrap; + +impl std::ops::Deref for Wrap { + type Target = GenericStruct; + + fn deref(&self) -> &Self::Target { + &self.0 + } +} diff --git a/tests/ui/privacy/private-bounds-locally-allowed.rs b/tests/ui/privacy/private-bounds-locally-allowed.rs new file mode 100644 index 00000000000..96a007a64f6 --- /dev/null +++ b/tests/ui/privacy/private-bounds-locally-allowed.rs @@ -0,0 +1,7 @@ +// check-pass +// compile-flags: --crate-type=lib + +#[allow(private_bounds)] +pub trait Foo: FooImpl {} + +trait FooImpl {} diff --git a/tests/ui/unsized/issue-115203.rs b/tests/ui/unsized/issue-115203.rs new file mode 100644 index 00000000000..5fe7bd64288 --- /dev/null +++ b/tests/ui/unsized/issue-115203.rs @@ -0,0 +1,11 @@ +// compile-flags: --emit link + +fn main() { + let a: [i32; 0] = []; + match [a[..]] { + //~^ ERROR cannot move a value of type `[i32] + //~| ERROR cannot move out of type `[i32]`, a non-copy slice + [[]] => (), + _ => (), + } +} diff --git a/tests/ui/unsized/issue-115203.stderr b/tests/ui/unsized/issue-115203.stderr new file mode 100644 index 00000000000..3ee734988c5 --- /dev/null +++ b/tests/ui/unsized/issue-115203.stderr @@ -0,0 +1,19 @@ +error[E0161]: cannot move a value of type `[i32]` + --> $DIR/issue-115203.rs:5:12 + | +LL | match [a[..]] { + | ^^^^^ the size of `[i32]` cannot be statically determined + +error[E0508]: cannot move out of type `[i32]`, a non-copy slice + --> $DIR/issue-115203.rs:5:12 + | +LL | match [a[..]] { + | ^^^^^ + | | + | cannot move out of here + | move occurs because value has type `[i32]`, which does not implement the `Copy` trait + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0161, E0508. +For more information about an error, try `rustc --explain E0161`.