diff options
Diffstat (limited to 'compiler/rustc_middle/src/ty/structural_impls.rs')
| -rw-r--r-- | compiler/rustc_middle/src/ty/structural_impls.rs | 478 |
1 files changed, 17 insertions, 461 deletions
diff --git a/compiler/rustc_middle/src/ty/structural_impls.rs b/compiler/rustc_middle/src/ty/structural_impls.rs index d7e74d675de..f5fd1f6ffaf 100644 --- a/compiler/rustc_middle/src/ty/structural_impls.rs +++ b/compiler/rustc_middle/src/ty/structural_impls.rs @@ -9,7 +9,6 @@ use crate::ty::print::{with_no_trimmed_paths, FmtPrinter, Printer}; use crate::ty::visit::{TypeSuperVisitable, TypeVisitable, TypeVisitor}; use crate::ty::{self, InferConst, Lift, Term, TermKind, Ty, TyCtxt}; use rustc_data_structures::functor::IdFunctor; -use rustc_hir as hir; use rustc_hir::def::Namespace; use rustc_index::vec::{Idx, IndexVec}; @@ -238,12 +237,24 @@ TrivialTypeTraversalAndLiftImpls! { crate::ty::Variance, ::rustc_span::Span, ::rustc_errors::ErrorGuaranteed, + Field, + interpret::Scalar, + rustc_target::abi::Size, + ty::DelaySpanBugEmitted, + rustc_type_ir::DebruijnIndex, + ty::BoundVar, + ty::Placeholder<ty::BoundVar>, +} + +TrivialTypeTraversalAndLiftImpls! { + for<'tcx> { + ty::ValTree<'tcx>, + } } /////////////////////////////////////////////////////////////////////////// // Lift implementations -// FIXME(eddyb) replace all the uses of `Option::map` with `?`. impl<'tcx, A: Lift<'tcx>, B: Lift<'tcx>> Lift<'tcx> for (A, B) { type Lifted = (A::Lifted, B::Lifted); fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { @@ -261,10 +272,7 @@ impl<'tcx, A: Lift<'tcx>, B: Lift<'tcx>, C: Lift<'tcx>> Lift<'tcx> for (A, B, C) impl<'tcx, T: Lift<'tcx>> Lift<'tcx> for Option<T> { type Lifted = Option<T::Lifted>; fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - match self { - Some(x) => tcx.lift(x).map(Some), - None => Some(None), - } + tcx.lift(self?).map(Some) } } @@ -281,21 +289,21 @@ impl<'tcx, T: Lift<'tcx>, E: Lift<'tcx>> Lift<'tcx> for Result<T, E> { impl<'tcx, T: Lift<'tcx>> Lift<'tcx> for Box<T> { type Lifted = Box<T::Lifted>; fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - tcx.lift(*self).map(Box::new) + Some(Box::new(tcx.lift(*self)?)) } } impl<'tcx, T: Lift<'tcx> + Clone> Lift<'tcx> for Rc<T> { type Lifted = Rc<T::Lifted>; fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - tcx.lift(self.as_ref().clone()).map(Rc::new) + Some(Rc::new(tcx.lift(self.as_ref().clone())?)) } } impl<'tcx, T: Lift<'tcx> + Clone> Lift<'tcx> for Arc<T> { type Lifted = Arc<T::Lifted>; fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - tcx.lift(self.as_ref().clone()).map(Arc::new) + Some(Arc::new(tcx.lift(self.as_ref().clone())?)) } } impl<'tcx, T: Lift<'tcx>> Lift<'tcx> for Vec<T> { @@ -312,35 +320,6 @@ impl<'tcx, I: Idx, T: Lift<'tcx>> Lift<'tcx> for IndexVec<I, T> { } } -impl<'a, 'tcx> Lift<'tcx> for ty::TraitRef<'a> { - type Lifted = ty::TraitRef<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - tcx.lift(self.substs).map(|substs| ty::TraitRef { def_id: self.def_id, substs }) - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::ExistentialTraitRef<'a> { - type Lifted = ty::ExistentialTraitRef<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - tcx.lift(self.substs).map(|substs| ty::ExistentialTraitRef { def_id: self.def_id, substs }) - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::ExistentialPredicate<'a> { - type Lifted = ty::ExistentialPredicate<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - match self { - ty::ExistentialPredicate::Trait(x) => tcx.lift(x).map(ty::ExistentialPredicate::Trait), - ty::ExistentialPredicate::Projection(x) => { - tcx.lift(x).map(ty::ExistentialPredicate::Projection) - } - ty::ExistentialPredicate::AutoTrait(def_id) => { - Some(ty::ExistentialPredicate::AutoTrait(def_id)) - } - } - } -} - impl<'a, 'tcx> Lift<'tcx> for Term<'a> { type Lifted = ty::Term<'tcx>; fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { @@ -353,121 +332,6 @@ impl<'a, 'tcx> Lift<'tcx> for Term<'a> { ) } } - -impl<'a, 'tcx> Lift<'tcx> for ty::TraitPredicate<'a> { - type Lifted = ty::TraitPredicate<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<ty::TraitPredicate<'tcx>> { - tcx.lift(self.trait_ref).map(|trait_ref| ty::TraitPredicate { - trait_ref, - constness: self.constness, - polarity: self.polarity, - }) - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::SubtypePredicate<'a> { - type Lifted = ty::SubtypePredicate<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<ty::SubtypePredicate<'tcx>> { - tcx.lift((self.a, self.b)).map(|(a, b)| ty::SubtypePredicate { - a_is_expected: self.a_is_expected, - a, - b, - }) - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::CoercePredicate<'a> { - type Lifted = ty::CoercePredicate<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<ty::CoercePredicate<'tcx>> { - tcx.lift((self.a, self.b)).map(|(a, b)| ty::CoercePredicate { a, b }) - } -} - -impl<'tcx, A: Copy + Lift<'tcx>, B: Copy + Lift<'tcx>> Lift<'tcx> for ty::OutlivesPredicate<A, B> { - type Lifted = ty::OutlivesPredicate<A::Lifted, B::Lifted>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - tcx.lift((self.0, self.1)).map(|(a, b)| ty::OutlivesPredicate(a, b)) - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::ProjectionTy<'a> { - type Lifted = ty::ProjectionTy<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<ty::ProjectionTy<'tcx>> { - tcx.lift(self.substs) - .map(|substs| ty::ProjectionTy { item_def_id: self.item_def_id, substs }) - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::ProjectionPredicate<'a> { - type Lifted = ty::ProjectionPredicate<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<ty::ProjectionPredicate<'tcx>> { - tcx.lift((self.projection_ty, self.term)) - .map(|(projection_ty, term)| ty::ProjectionPredicate { projection_ty, term }) - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::ExistentialProjection<'a> { - type Lifted = ty::ExistentialProjection<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - tcx.lift(self.substs).map(|substs| ty::ExistentialProjection { - substs, - term: tcx.lift(self.term).expect("type must lift when substs do"), - item_def_id: self.item_def_id, - }) - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::PredicateKind<'a> { - type Lifted = ty::PredicateKind<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - match self { - ty::PredicateKind::Trait(data) => tcx.lift(data).map(ty::PredicateKind::Trait), - ty::PredicateKind::Subtype(data) => tcx.lift(data).map(ty::PredicateKind::Subtype), - ty::PredicateKind::Coerce(data) => tcx.lift(data).map(ty::PredicateKind::Coerce), - ty::PredicateKind::RegionOutlives(data) => { - tcx.lift(data).map(ty::PredicateKind::RegionOutlives) - } - ty::PredicateKind::TypeOutlives(data) => { - tcx.lift(data).map(ty::PredicateKind::TypeOutlives) - } - ty::PredicateKind::Projection(data) => { - tcx.lift(data).map(ty::PredicateKind::Projection) - } - ty::PredicateKind::WellFormed(ty) => tcx.lift(ty).map(ty::PredicateKind::WellFormed), - ty::PredicateKind::ClosureKind(closure_def_id, closure_substs, kind) => { - tcx.lift(closure_substs).map(|closure_substs| { - ty::PredicateKind::ClosureKind(closure_def_id, closure_substs, kind) - }) - } - ty::PredicateKind::ObjectSafe(trait_def_id) => { - Some(ty::PredicateKind::ObjectSafe(trait_def_id)) - } - ty::PredicateKind::ConstEvaluatable(uv) => { - tcx.lift(uv).map(|uv| ty::PredicateKind::ConstEvaluatable(uv)) - } - ty::PredicateKind::ConstEquate(c1, c2) => { - tcx.lift((c1, c2)).map(|(c1, c2)| ty::PredicateKind::ConstEquate(c1, c2)) - } - ty::PredicateKind::TypeWellFormedFromEnv(ty) => { - tcx.lift(ty).map(ty::PredicateKind::TypeWellFormedFromEnv) - } - } - } -} - -impl<'a, 'tcx, T: Lift<'tcx>> Lift<'tcx> for ty::Binder<'a, T> -where - <T as Lift<'tcx>>::Lifted: TypeVisitable<'tcx>, -{ - type Lifted = ty::Binder<'tcx, T::Lifted>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - let bound_vars = tcx.lift(self.bound_vars()); - tcx.lift(self.skip_binder()) - .zip(bound_vars) - .map(|(value, vars)| ty::Binder::bind_with_vars(value, vars)) - } -} - impl<'a, 'tcx> Lift<'tcx> for ty::ParamEnv<'a> { type Lifted = ty::ParamEnv<'tcx>; fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { @@ -476,192 +340,6 @@ impl<'a, 'tcx> Lift<'tcx> for ty::ParamEnv<'a> { } } -impl<'a, 'tcx, T: Lift<'tcx>> Lift<'tcx> for ty::ParamEnvAnd<'a, T> { - type Lifted = ty::ParamEnvAnd<'tcx, T::Lifted>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - tcx.lift(self.param_env).and_then(|param_env| { - tcx.lift(self.value).map(|value| ty::ParamEnvAnd { param_env, value }) - }) - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::ClosureSubsts<'a> { - type Lifted = ty::ClosureSubsts<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - tcx.lift(self.substs).map(|substs| ty::ClosureSubsts { substs }) - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::GeneratorSubsts<'a> { - type Lifted = ty::GeneratorSubsts<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - tcx.lift(self.substs).map(|substs| ty::GeneratorSubsts { substs }) - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::adjustment::Adjustment<'a> { - type Lifted = ty::adjustment::Adjustment<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - let ty::adjustment::Adjustment { kind, target } = self; - tcx.lift(kind).and_then(|kind| { - tcx.lift(target).map(|target| ty::adjustment::Adjustment { kind, target }) - }) - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::adjustment::Adjust<'a> { - type Lifted = ty::adjustment::Adjust<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - match self { - ty::adjustment::Adjust::NeverToAny => Some(ty::adjustment::Adjust::NeverToAny), - ty::adjustment::Adjust::Pointer(ptr) => Some(ty::adjustment::Adjust::Pointer(ptr)), - ty::adjustment::Adjust::Deref(overloaded) => { - tcx.lift(overloaded).map(ty::adjustment::Adjust::Deref) - } - ty::adjustment::Adjust::Borrow(autoref) => { - tcx.lift(autoref).map(ty::adjustment::Adjust::Borrow) - } - } - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::adjustment::OverloadedDeref<'a> { - type Lifted = ty::adjustment::OverloadedDeref<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - tcx.lift(self.region).map(|region| ty::adjustment::OverloadedDeref { - region, - mutbl: self.mutbl, - span: self.span, - }) - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::adjustment::AutoBorrow<'a> { - type Lifted = ty::adjustment::AutoBorrow<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - match self { - ty::adjustment::AutoBorrow::Ref(r, m) => { - tcx.lift(r).map(|r| ty::adjustment::AutoBorrow::Ref(r, m)) - } - ty::adjustment::AutoBorrow::RawPtr(m) => Some(ty::adjustment::AutoBorrow::RawPtr(m)), - } - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::GenSig<'a> { - type Lifted = ty::GenSig<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - tcx.lift((self.resume_ty, self.yield_ty, self.return_ty)) - .map(|(resume_ty, yield_ty, return_ty)| ty::GenSig { resume_ty, yield_ty, return_ty }) - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::FnSig<'a> { - type Lifted = ty::FnSig<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - tcx.lift(self.inputs_and_output).map(|x| ty::FnSig { - inputs_and_output: x, - c_variadic: self.c_variadic, - unsafety: self.unsafety, - abi: self.abi, - }) - } -} - -impl<'tcx, T: Lift<'tcx>> Lift<'tcx> for ty::error::ExpectedFound<T> { - type Lifted = ty::error::ExpectedFound<T::Lifted>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - let ty::error::ExpectedFound { expected, found } = self; - tcx.lift(expected).and_then(|expected| { - tcx.lift(found).map(|found| ty::error::ExpectedFound { expected, found }) - }) - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::error::TypeError<'a> { - type Lifted = ty::error::TypeError<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - use crate::ty::error::TypeError::*; - - Some(match self { - Mismatch => Mismatch, - ConstnessMismatch(x) => ConstnessMismatch(x), - PolarityMismatch(x) => PolarityMismatch(x), - UnsafetyMismatch(x) => UnsafetyMismatch(x), - AbiMismatch(x) => AbiMismatch(x), - Mutability => Mutability, - ArgumentMutability(i) => ArgumentMutability(i), - TupleSize(x) => TupleSize(x), - FixedArraySize(x) => FixedArraySize(x), - ArgCount => ArgCount, - FieldMisMatch(x, y) => FieldMisMatch(x, y), - RegionsDoesNotOutlive(a, b) => { - return tcx.lift((a, b)).map(|(a, b)| RegionsDoesNotOutlive(a, b)); - } - RegionsInsufficientlyPolymorphic(a, b) => { - return tcx.lift(b).map(|b| RegionsInsufficientlyPolymorphic(a, b)); - } - RegionsOverlyPolymorphic(a, b) => { - return tcx.lift(b).map(|b| RegionsOverlyPolymorphic(a, b)); - } - RegionsPlaceholderMismatch => RegionsPlaceholderMismatch, - IntMismatch(x) => IntMismatch(x), - FloatMismatch(x) => FloatMismatch(x), - Traits(x) => Traits(x), - VariadicMismatch(x) => VariadicMismatch(x), - CyclicTy(t) => return tcx.lift(t).map(|t| CyclicTy(t)), - CyclicConst(ct) => return tcx.lift(ct).map(|ct| CyclicConst(ct)), - ProjectionMismatched(x) => ProjectionMismatched(x), - ArgumentSorts(x, i) => return tcx.lift(x).map(|x| ArgumentSorts(x, i)), - Sorts(x) => return tcx.lift(x).map(Sorts), - ExistentialMismatch(x) => return tcx.lift(x).map(ExistentialMismatch), - ConstMismatch(x) => return tcx.lift(x).map(ConstMismatch), - IntrinsicCast => IntrinsicCast, - TargetFeatureCast(x) => TargetFeatureCast(x), - ObjectUnsafeCoercion(x) => return tcx.lift(x).map(ObjectUnsafeCoercion), - }) - } -} - -impl<'a, 'tcx> Lift<'tcx> for ty::InstanceDef<'a> { - type Lifted = ty::InstanceDef<'tcx>; - fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - match self { - ty::InstanceDef::Item(def_id) => Some(ty::InstanceDef::Item(def_id)), - ty::InstanceDef::VTableShim(def_id) => Some(ty::InstanceDef::VTableShim(def_id)), - ty::InstanceDef::ReifyShim(def_id) => Some(ty::InstanceDef::ReifyShim(def_id)), - ty::InstanceDef::Intrinsic(def_id) => Some(ty::InstanceDef::Intrinsic(def_id)), - ty::InstanceDef::FnPtrShim(def_id, ty) => { - Some(ty::InstanceDef::FnPtrShim(def_id, tcx.lift(ty)?)) - } - ty::InstanceDef::Virtual(def_id, n) => Some(ty::InstanceDef::Virtual(def_id, n)), - ty::InstanceDef::ClosureOnceShim { call_once, track_caller } => { - Some(ty::InstanceDef::ClosureOnceShim { call_once, track_caller }) - } - ty::InstanceDef::DropGlue(def_id, ty) => { - Some(ty::InstanceDef::DropGlue(def_id, tcx.lift(ty)?)) - } - ty::InstanceDef::CloneShim(def_id, ty) => { - Some(ty::InstanceDef::CloneShim(def_id, tcx.lift(ty)?)) - } - } - } -} - -impl<'tcx> Lift<'tcx> for Field { - type Lifted = Field; - fn lift_to_tcx(self, _tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - Some(self) - } -} - -impl<'tcx> Lift<'tcx> for crate::mir::ReturnConstraint { - type Lifted = crate::mir::ReturnConstraint; - fn lift_to_tcx(self, _tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> { - Some(self) - } -} - /////////////////////////////////////////////////////////////////////////// // TypeFoldable implementations. @@ -924,88 +602,12 @@ impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<ty::Binder<'tcx, ty::Existentia } } -impl<'tcx> TypeVisitable<'tcx> - for &'tcx ty::List<ty::Binder<'tcx, ty::ExistentialPredicate<'tcx>>> -{ - fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<V::BreakTy> { - self.iter().try_for_each(|p| p.visit_with(visitor)) - } -} - impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<ProjectionKind> { fn try_fold_with<F: FallibleTypeFolder<'tcx>>(self, folder: &mut F) -> Result<Self, F::Error> { ty::util::fold_list(self, folder, |tcx, v| tcx.intern_projs(v)) } } -impl<'tcx> TypeVisitable<'tcx> for &'tcx ty::List<ProjectionKind> { - fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<V::BreakTy> { - self.iter().try_for_each(|t| t.visit_with(visitor)) - } -} - -impl<'tcx> TypeFoldable<'tcx> for ty::instance::Instance<'tcx> { - fn try_fold_with<F: FallibleTypeFolder<'tcx>>(self, folder: &mut F) -> Result<Self, F::Error> { - use crate::ty::InstanceDef::*; - Ok(Self { - substs: self.substs.try_fold_with(folder)?, - def: match self.def { - Item(def) => Item(def.try_fold_with(folder)?), - VTableShim(did) => VTableShim(did.try_fold_with(folder)?), - ReifyShim(did) => ReifyShim(did.try_fold_with(folder)?), - Intrinsic(did) => Intrinsic(did.try_fold_with(folder)?), - FnPtrShim(did, ty) => { - FnPtrShim(did.try_fold_with(folder)?, ty.try_fold_with(folder)?) - } - Virtual(did, i) => Virtual(did.try_fold_with(folder)?, i), - ClosureOnceShim { call_once, track_caller } => { - ClosureOnceShim { call_once: call_once.try_fold_with(folder)?, track_caller } - } - DropGlue(did, ty) => { - DropGlue(did.try_fold_with(folder)?, ty.try_fold_with(folder)?) - } - CloneShim(did, ty) => { - CloneShim(did.try_fold_with(folder)?, ty.try_fold_with(folder)?) - } - }, - }) - } -} - -impl<'tcx> TypeVisitable<'tcx> for ty::instance::Instance<'tcx> { - fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<V::BreakTy> { - use crate::ty::InstanceDef::*; - self.substs.visit_with(visitor)?; - match self.def { - Item(def) => def.visit_with(visitor), - VTableShim(did) | ReifyShim(did) | Intrinsic(did) | Virtual(did, _) => { - did.visit_with(visitor) - } - FnPtrShim(did, ty) | CloneShim(did, ty) => { - did.visit_with(visitor)?; - ty.visit_with(visitor) - } - DropGlue(did, ty) => { - did.visit_with(visitor)?; - ty.visit_with(visitor) - } - ClosureOnceShim { call_once, track_caller: _ } => call_once.visit_with(visitor), - } - } -} - -impl<'tcx> TypeFoldable<'tcx> for interpret::GlobalId<'tcx> { - fn try_fold_with<F: FallibleTypeFolder<'tcx>>(self, folder: &mut F) -> Result<Self, F::Error> { - Ok(Self { instance: self.instance.try_fold_with(folder)?, promoted: self.promoted }) - } -} - -impl<'tcx> TypeVisitable<'tcx> for interpret::GlobalId<'tcx> { - fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<V::BreakTy> { - self.instance.visit_with(visitor) - } -} - impl<'tcx> TypeFoldable<'tcx> for Ty<'tcx> { fn try_fold_with<F: FallibleTypeFolder<'tcx>>(self, folder: &mut F) -> Result<Self, F::Error> { folder.try_fold_ty(self) @@ -1181,12 +783,6 @@ impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::List<ty::Predicate<'tcx>> { } } -impl<'tcx> TypeVisitable<'tcx> for &'tcx ty::List<ty::Predicate<'tcx>> { - fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<V::BreakTy> { - self.iter().try_for_each(|p| p.visit_with(visitor)) - } -} - impl<'tcx, T: TypeFoldable<'tcx>, I: Idx> TypeFoldable<'tcx> for IndexVec<I, T> { fn try_fold_with<F: FallibleTypeFolder<'tcx>>(self, folder: &mut F) -> Result<Self, F::Error> { self.try_map_id(|x| x.try_fold_with(folder)) @@ -1233,34 +829,6 @@ impl<'tcx> TypeSuperVisitable<'tcx> for ty::Const<'tcx> { } } -impl<'tcx> TypeFoldable<'tcx> for ty::ConstKind<'tcx> { - fn try_fold_with<F: FallibleTypeFolder<'tcx>>(self, folder: &mut F) -> Result<Self, F::Error> { - Ok(match self { - ty::ConstKind::Infer(ic) => ty::ConstKind::Infer(ic.try_fold_with(folder)?), - ty::ConstKind::Param(p) => ty::ConstKind::Param(p.try_fold_with(folder)?), - ty::ConstKind::Unevaluated(uv) => ty::ConstKind::Unevaluated(uv.try_fold_with(folder)?), - ty::ConstKind::Value(_) - | ty::ConstKind::Bound(..) - | ty::ConstKind::Placeholder(..) - | ty::ConstKind::Error(_) => self, - }) - } -} - -impl<'tcx> TypeVisitable<'tcx> for ty::ConstKind<'tcx> { - fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<V::BreakTy> { - match *self { - ty::ConstKind::Infer(ic) => ic.visit_with(visitor), - ty::ConstKind::Param(p) => p.visit_with(visitor), - ty::ConstKind::Unevaluated(uv) => uv.visit_with(visitor), - ty::ConstKind::Value(_) - | ty::ConstKind::Bound(..) - | ty::ConstKind::Placeholder(_) - | ty::ConstKind::Error(_) => ControlFlow::CONTINUE, - } - } -} - impl<'tcx> TypeFoldable<'tcx> for InferConst<'tcx> { fn try_fold_with<F: FallibleTypeFolder<'tcx>>(self, _folder: &mut F) -> Result<Self, F::Error> { Ok(self) @@ -1315,15 +883,3 @@ impl<'tcx> TypeVisitable<'tcx> for ty::Unevaluated<'tcx, ()> { self.expand().visit_with(visitor) } } - -impl<'tcx> TypeFoldable<'tcx> for hir::Constness { - fn try_fold_with<F: FallibleTypeFolder<'tcx>>(self, _: &mut F) -> Result<Self, F::Error> { - Ok(self) - } -} - -impl<'tcx> TypeVisitable<'tcx> for hir::Constness { - fn visit_with<V: TypeVisitor<'tcx>>(&self, _: &mut V) -> ControlFlow<V::BreakTy> { - ControlFlow::CONTINUE - } -} |