diff options
Diffstat (limited to 'compiler/rustc_middle/src/ty/mod.rs')
| -rw-r--r-- | compiler/rustc_middle/src/ty/mod.rs | 97 |
1 files changed, 43 insertions, 54 deletions
diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index 1274f427e..aa1e7f216 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -98,17 +98,16 @@ pub use self::sty::BoundRegionKind::*; pub use self::sty::{ AliasTy, Article, Binder, BoundRegion, BoundRegionKind, BoundTy, BoundTyKind, BoundVar, BoundVariableKind, CanonicalPolyFnSig, ClosureArgs, ClosureArgsParts, ConstKind, ConstVid, - EarlyBoundRegion, ExistentialPredicate, ExistentialProjection, ExistentialTraitRef, FnSig, - FreeRegion, GenSig, GeneratorArgs, GeneratorArgsParts, InlineConstArgs, InlineConstArgsParts, - ParamConst, ParamTy, PolyExistentialPredicate, PolyExistentialProjection, + EarlyBoundRegion, EffectVid, ExistentialPredicate, ExistentialProjection, ExistentialTraitRef, + FnSig, FreeRegion, GenSig, GeneratorArgs, GeneratorArgsParts, InlineConstArgs, + InlineConstArgsParts, ParamConst, ParamTy, PolyExistentialPredicate, PolyExistentialProjection, PolyExistentialTraitRef, PolyFnSig, PolyGenSig, PolyTraitRef, Region, RegionKind, RegionVid, TraitRef, TyKind, TypeAndMut, UpvarArgs, VarianceDiagInfo, }; pub use self::trait_def::TraitDef; pub use self::typeck_results::{ - CanonicalUserType, CanonicalUserTypeAnnotation, CanonicalUserTypeAnnotations, - GeneratorDiagnosticData, GeneratorInteriorTypeCause, TypeckResults, UserType, - UserTypeAnnotationIndex, + CanonicalUserType, CanonicalUserTypeAnnotation, CanonicalUserTypeAnnotations, TypeckResults, + UserType, UserTypeAnnotationIndex, }; pub mod _match; @@ -162,8 +161,6 @@ pub struct ResolverOutputs { #[derive(Debug)] pub struct ResolverGlobalCtxt { pub visibilities: FxHashMap<LocalDefId, Visibility>, - /// This field is used to decide whether we should make `PRIVATE_IN_PUBLIC` a hard error. - pub has_pub_restricted: bool, /// Item with a given `LocalDefId` was defined during macro expansion with ID `ExpnId`. pub expn_that_defined: FxHashMap<LocalDefId, ExpnId>, pub effective_visibilities: EffectiveVisibilities, @@ -238,7 +235,7 @@ pub struct ImplHeader<'tcx> { pub impl_def_id: DefId, pub self_ty: Ty<'tcx>, pub trait_ref: Option<TraitRef<'tcx>>, - pub predicates: Vec<(Predicate<'tcx>, Span)>, + pub predicates: Vec<Predicate<'tcx>>, } #[derive(Copy, Clone, PartialEq, Eq, Debug, TypeFoldable, TypeVisitable)] @@ -282,6 +279,19 @@ impl fmt::Display for ImplPolarity { } } +#[derive(Copy, Clone, PartialEq, Eq, Hash, TyEncodable, TyDecodable, HashStable, Debug)] +#[derive(TypeFoldable, TypeVisitable)] +pub enum Asyncness { + Yes, + No, +} + +impl Asyncness { + pub fn is_async(self) -> bool { + matches!(self, Asyncness::Yes) + } +} + #[derive(Clone, Debug, PartialEq, Eq, Copy, Hash, Encodable, Decodable, HashStable)] pub enum Visibility<Id = LocalDefId> { /// Visible everywhere (including in other crates). @@ -568,6 +578,11 @@ impl rustc_errors::IntoDiagnosticArg for Clause<'_> { pub struct Clause<'tcx>(Interned<'tcx, WithCachedTypeInfo<ty::Binder<'tcx, PredicateKind<'tcx>>>>); impl<'tcx> Clause<'tcx> { + pub fn from_projection_clause(tcx: TyCtxt<'tcx>, pred: PolyProjectionPredicate<'tcx>) -> Self { + let pred: Predicate<'tcx> = pred.to_predicate(tcx); + pred.expect_clause() + } + pub fn as_predicate(self) -> Predicate<'tcx> { Predicate(self.0) } @@ -1255,14 +1270,6 @@ impl<'tcx> ToPredicate<'tcx, Clause<'tcx>> for TraitRef<'tcx> { } } -impl<'tcx> ToPredicate<'tcx, Clause<'tcx>> for TraitPredicate<'tcx> { - #[inline(always)] - fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Clause<'tcx> { - let p: Predicate<'tcx> = self.to_predicate(tcx); - p.expect_clause() - } -} - impl<'tcx> ToPredicate<'tcx> for Binder<'tcx, TraitRef<'tcx>> { #[inline(always)] fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> { @@ -1289,18 +1296,6 @@ impl<'tcx> ToPredicate<'tcx, PolyTraitPredicate<'tcx>> for Binder<'tcx, TraitRef } } -impl<'tcx> ToPredicate<'tcx, PolyTraitPredicate<'tcx>> for TraitRef<'tcx> { - fn to_predicate(self, tcx: TyCtxt<'tcx>) -> PolyTraitPredicate<'tcx> { - ty::Binder::dummy(self).to_predicate(tcx) - } -} - -impl<'tcx> ToPredicate<'tcx, PolyTraitPredicate<'tcx>> for TraitPredicate<'tcx> { - fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> PolyTraitPredicate<'tcx> { - ty::Binder::dummy(self) - } -} - impl<'tcx> ToPredicate<'tcx> for PolyTraitPredicate<'tcx> { fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> { self.map_bound(|p| PredicateKind::Clause(ClauseKind::Trait(p))).to_predicate(tcx) @@ -1314,12 +1309,6 @@ impl<'tcx> ToPredicate<'tcx, Clause<'tcx>> for PolyTraitPredicate<'tcx> { } } -impl<'tcx> ToPredicate<'tcx> for OutlivesPredicate<ty::Region<'tcx>, ty::Region<'tcx>> { - fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> { - ty::Binder::dummy(PredicateKind::Clause(ClauseKind::RegionOutlives(self))).to_predicate(tcx) - } -} - impl<'tcx> ToPredicate<'tcx> for PolyRegionOutlivesPredicate<'tcx> { fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> { self.map_bound(|p| PredicateKind::Clause(ClauseKind::RegionOutlives(p))).to_predicate(tcx) @@ -1332,12 +1321,6 @@ impl<'tcx> ToPredicate<'tcx> for OutlivesPredicate<Ty<'tcx>, ty::Region<'tcx>> { } } -impl<'tcx> ToPredicate<'tcx> for PolyTypeOutlivesPredicate<'tcx> { - fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> { - self.map_bound(|p| PredicateKind::Clause(ClauseKind::TypeOutlives(p))).to_predicate(tcx) - } -} - impl<'tcx> ToPredicate<'tcx> for ProjectionPredicate<'tcx> { fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> { ty::Binder::dummy(PredicateKind::Clause(ClauseKind::Projection(self))).to_predicate(tcx) @@ -1357,13 +1340,6 @@ impl<'tcx> ToPredicate<'tcx, Clause<'tcx>> for ProjectionPredicate<'tcx> { } } -impl<'tcx> ToPredicate<'tcx, Clause<'tcx>> for PolyProjectionPredicate<'tcx> { - fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Clause<'tcx> { - let p: Predicate<'tcx> = self.to_predicate(tcx); - p.expect_clause() - } -} - impl<'tcx> ToPredicate<'tcx> for TraitPredicate<'tcx> { fn to_predicate(self, tcx: TyCtxt<'tcx>) -> Predicate<'tcx> { PredicateKind::Clause(ClauseKind::Trait(self)).to_predicate(tcx) @@ -1512,7 +1488,7 @@ impl<'a, 'tcx> IntoIterator for &'a InstantiatedPredicates<'tcx> { } } -#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, HashStable, TyEncodable, TyDecodable, Lift)] +#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, HashStable, TyEncodable, TyDecodable)] #[derive(TypeFoldable, TypeVisitable)] pub struct OpaqueTypeKey<'tcx> { pub def_id: LocalDefId, @@ -1795,7 +1771,7 @@ impl<'tcx> ParamEnv<'tcx> { } #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, TypeFoldable, TypeVisitable)] -#[derive(HashStable, Lift)] +#[derive(HashStable)] pub struct ParamEnvAnd<'tcx, T> { pub param_env: ParamEnv<'tcx>, pub value: T, @@ -2150,6 +2126,7 @@ impl<'tcx> TyCtxt<'tcx> { for attr in self.get_attrs(did, sym::repr) { for r in attr::parse_repr_attr(&self.sess, attr) { flags.insert(match r { + attr::ReprRust => ReprFlags::empty(), attr::ReprC => ReprFlags::IS_C, attr::ReprPacked(pack) => { let pack = Align::from_bytes(pack as u64).unwrap(); @@ -2215,10 +2192,6 @@ impl<'tcx> TyCtxt<'tcx> { // The name of a constructor is that of its parent. rustc_hir::definitions::DefPathData::Ctor => self .opt_item_name(DefId { krate: def_id.krate, index: def_key.parent.unwrap() }), - // The name of opaque types only exists in HIR. - rustc_hir::definitions::DefPathData::ImplTrait - if let Some(def_id) = def_id.as_local() => - self.hir().opt_name(self.hir().local_def_id_to_hir_id(def_id)), _ => def_key.get_opt_name(), } } @@ -2409,6 +2382,22 @@ impl<'tcx> TyCtxt<'tcx> { } } + pub fn get_attrs_by_path<'attr>( + self, + did: DefId, + attr: &'attr [Symbol], + ) -> impl Iterator<Item = &'tcx ast::Attribute> + 'attr + where + 'tcx: 'attr, + { + let filter_fn = move |a: &&ast::Attribute| a.path_matches(&attr); + if let Some(did) = did.as_local() { + self.hir().attrs(self.hir().local_def_id_to_hir_id(did)).iter().filter(filter_fn) + } else { + self.item_attrs(did).iter().filter(filter_fn) + } + } + pub fn get_attr(self, did: impl Into<DefId>, attr: Symbol) -> Option<&'tcx ast::Attribute> { if cfg!(debug_assertions) && !rustc_feature::is_valid_for_get_attr(attr) { let did: DefId = did.into(); 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