// except according to those terms.
use infer::type_variable;
-use ty::subst::{self, VecPerParamSpace};
-use ty::{self, Lift, TraitRef, Ty, TyCtxt};
+use ty::{self, Lift, Ty, TyCtxt};
use ty::fold::{TypeFoldable, TypeFolder, TypeVisitor};
use std::rc::Rc;
use syntax::abi;
-use syntax::ptr::P;
use hir;
}
}
-impl<'tcx> Lift<'tcx> for ty::Region {
- type Lifted = Self;
- fn lift_to_tcx(&self, _: TyCtxt) -> Option<ty::Region> {
- Some(*self)
+impl<'a, 'tcx> Lift<'tcx> for ty::TraitRef<'a> {
+ type Lifted = ty::TraitRef<'tcx>;
+ fn lift_to_tcx<'b, 'gcx>(&self, tcx: TyCtxt<'b, 'gcx, 'tcx>) -> Option<Self::Lifted> {
+ tcx.lift(&self.substs).map(|substs| ty::TraitRef {
+ def_id: self.def_id,
+ substs: substs
+ })
}
}
-impl<'a, 'tcx> Lift<'tcx> for TraitRef<'a> {
- type Lifted = TraitRef<'tcx>;
- fn lift_to_tcx<'b, 'gcx>(&self, tcx: TyCtxt<'b, 'gcx, 'tcx>) -> Option<TraitRef<'tcx>> {
- tcx.lift(&self.substs).map(|substs| TraitRef {
+impl<'a, 'tcx> Lift<'tcx> for ty::ExistentialTraitRef<'a> {
+ type Lifted = ty::ExistentialTraitRef<'tcx>;
+ fn lift_to_tcx<'b, 'gcx>(&self, tcx: TyCtxt<'b, 'gcx, 'tcx>) -> Option<Self::Lifted> {
+ tcx.lift(&self.substs).map(|substs| ty::ExistentialTraitRef {
def_id: self.def_id,
substs: substs
})
}
}
+impl<'a, 'tcx> Lift<'tcx> for ty::ExistentialProjection<'a> {
+ type Lifted = ty::ExistentialProjection<'tcx>;
+ fn lift_to_tcx<'b, 'gcx>(&self, tcx: TyCtxt<'b, 'gcx, 'tcx>) -> Option<Self::Lifted> {
+ tcx.lift(&(self.trait_ref, self.ty)).map(|(trait_ref, ty)| {
+ ty::ExistentialProjection {
+ trait_ref: trait_ref,
+ item_name: self.item_name,
+ ty: ty
+ }
+ })
+ }
+}
+
impl<'a, 'tcx> Lift<'tcx> for ty::Predicate<'a> {
type Lifted = ty::Predicate<'tcx>;
fn lift_to_tcx<'b, 'gcx>(&self, tcx: TyCtxt<'b, 'gcx, 'tcx>) -> Option<Self::Lifted> {
ty::Predicate::WellFormed(ty) => {
tcx.lift(&ty).map(ty::Predicate::WellFormed)
}
- ty::Predicate::Rfc1592(box ref a) => {
- tcx.lift(a).map(|a| ty::Predicate::Rfc1592(Box::new(a)))
- }
ty::Predicate::ClosureKind(closure_def_id, kind) => {
Some(ty::Predicate::ClosureKind(closure_def_id, kind))
}
FixedArraySize(x) => FixedArraySize(x),
TyParamSize(x) => TyParamSize(x),
ArgCount => ArgCount,
- RegionsDoesNotOutlive(a, b) => RegionsDoesNotOutlive(a, b),
- RegionsNotSame(a, b) => RegionsNotSame(a, b),
- RegionsNoOverlap(a, b) => RegionsNoOverlap(a, b),
+ RegionsDoesNotOutlive(a, b) => {
+ return tcx.lift(&(a, b)).map(|(a, b)| RegionsDoesNotOutlive(a, b))
+ }
+ RegionsNotSame(a, b) => {
+ return tcx.lift(&(a, b)).map(|(a, b)| RegionsNotSame(a, b))
+ }
+ RegionsNoOverlap(a, b) => {
+ return tcx.lift(&(a, b)).map(|(a, b)| RegionsNoOverlap(a, b))
+ }
RegionsInsufficientlyPolymorphic(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))
}
- RegionsOverlyPolymorphic(a, b) => RegionsOverlyPolymorphic(a, b),
IntegerAsChar => IntegerAsChar,
IntMismatch(x) => IntMismatch(x),
FloatMismatch(x) => FloatMismatch(x),
}
}
-impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for P<[T]> {
- fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
- self.iter().map(|t| t.fold_with(folder)).collect()
- }
-
- fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool {
- self.iter().any(|t| t.visit_with(visitor))
- }
-}
-
-impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for VecPerParamSpace<T> {
- fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
- self.map(|elem| elem.fold_with(folder))
- }
-
- fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool {
- self.iter().any(|elem| elem.visit_with(visitor))
- }
-}
-
-impl<'tcx> TypeFoldable<'tcx> for ty::TraitTy<'tcx> {
+impl<'tcx> TypeFoldable<'tcx> for ty::TraitObject<'tcx> {
fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
- ty::TraitTy {
+ ty::TraitObject {
principal: self.principal.fold_with(folder),
- bounds: self.bounds.fold_with(folder),
+ region_bound: self.region_bound.fold_with(folder),
+ builtin_bounds: self.builtin_bounds,
+ projection_bounds: self.projection_bounds.fold_with(folder),
}
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool {
- self.principal.visit_with(visitor) || self.bounds.visit_with(visitor)
+ self.principal.visit_with(visitor) ||
+ self.region_bound.visit_with(visitor) ||
+ self.projection_bounds.visit_with(visitor)
}
}
-impl<'tcx> TypeFoldable<'tcx> for &'tcx [Ty<'tcx>] {
+impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::Slice<Ty<'tcx>> {
fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
let tys = self.iter().map(|t| t.fold_with(folder)).collect();
folder.tcx().mk_type_list(tys)
ty::TyRawPtr(tm) => ty::TyRawPtr(tm.fold_with(folder)),
ty::TyArray(typ, sz) => ty::TyArray(typ.fold_with(folder), sz),
ty::TySlice(typ) => ty::TySlice(typ.fold_with(folder)),
- ty::TyEnum(tid, substs) => ty::TyEnum(tid, substs.fold_with(folder)),
+ ty::TyAdt(tid, substs) => ty::TyAdt(tid, substs.fold_with(folder)),
ty::TyTrait(ref trait_ty) => ty::TyTrait(trait_ty.fold_with(folder)),
ty::TyTuple(ts) => ty::TyTuple(ts.fold_with(folder)),
ty::TyFnDef(def_id, substs, f) => {
ty::TyRef(ref r, tm) => {
ty::TyRef(r.fold_with(folder), tm.fold_with(folder))
}
- ty::TyStruct(did, substs) => ty::TyStruct(did, substs.fold_with(folder)),
ty::TyClosure(did, substs) => ty::TyClosure(did, substs.fold_with(folder)),
ty::TyProjection(ref data) => ty::TyProjection(data.fold_with(folder)),
ty::TyAnon(did, substs) => ty::TyAnon(did, substs.fold_with(folder)),
ty::TyRawPtr(ref tm) => tm.visit_with(visitor),
ty::TyArray(typ, _sz) => typ.visit_with(visitor),
ty::TySlice(typ) => typ.visit_with(visitor),
- ty::TyEnum(_tid, ref substs) => substs.visit_with(visitor),
+ ty::TyAdt(_, substs) => substs.visit_with(visitor),
ty::TyTrait(ref trait_ty) => trait_ty.visit_with(visitor),
ty::TyTuple(ts) => ts.visit_with(visitor),
ty::TyFnDef(_, substs, ref f) => {
}
ty::TyFnPtr(ref f) => f.visit_with(visitor),
ty::TyRef(r, ref tm) => r.visit_with(visitor) || tm.visit_with(visitor),
- ty::TyStruct(_did, ref substs) => substs.visit_with(visitor),
ty::TyClosure(_did, ref substs) => substs.visit_with(visitor),
ty::TyProjection(ref data) => data.visit_with(visitor),
ty::TyAnon(_, ref substs) => substs.visit_with(visitor),
}
}
- fn fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
- folder.fold_trait_ref(self)
+ fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool {
+ self.substs.visit_with(visitor)
+ }
+}
+
+impl<'tcx> TypeFoldable<'tcx> for ty::ExistentialTraitRef<'tcx> {
+ fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
+ ty::ExistentialTraitRef {
+ def_id: self.def_id,
+ substs: self.substs.fold_with(folder),
+ }
}
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool {
}
}
-impl<'tcx> TypeFoldable<'tcx> for ty::Region {
+impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::Region {
fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, _folder: &mut F) -> Self {
*self
}
}
}
-impl<'tcx> TypeFoldable<'tcx> for &'tcx ty::Region {
- fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, _folder: &mut F) -> Self {
- *self
- }
-
- fn fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
- let region = folder.fold_region(**self);
- folder.tcx().mk_region(region)
- }
-
- fn super_visit_with<V: TypeVisitor<'tcx>>(&self, _visitor: &mut V) -> bool {
- false
- }
-
- fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool {
- visitor.visit_region(**self)
- }
-}
-
-impl<'tcx> TypeFoldable<'tcx> for &'tcx subst::Substs<'tcx> {
- fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
- let substs = subst::Substs {
- regions: self.regions.fold_with(folder),
- types: self.types.fold_with(folder)
- };
- folder.tcx().mk_substs(substs)
- }
-
- fn fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
- folder.fold_substs(self)
- }
-
- fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool {
- self.types.visit_with(visitor) || self.regions.visit_with(visitor)
- }
-}
-
impl<'tcx> TypeFoldable<'tcx> for ty::ClosureSubsts<'tcx> {
fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
ty::ClosureSubsts {
}
}
-impl<'tcx> TypeFoldable<'tcx> for ty::ExistentialBounds<'tcx> {
- fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
- ty::ExistentialBounds {
- region_bound: self.region_bound.fold_with(folder),
- builtin_bounds: self.builtin_bounds,
- projection_bounds: self.projection_bounds.fold_with(folder),
- }
- }
-
- fn fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
- folder.fold_existential_bounds(self)
- }
-
- fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool {
- self.region_bound.visit_with(visitor) || self.projection_bounds.visit_with(visitor)
- }
-}
-
impl<'tcx> TypeFoldable<'tcx> for ty::TypeParameterDef<'tcx> {
fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
ty::TypeParameterDef {
name: self.name,
def_id: self.def_id,
- space: self.space,
index: self.index,
default: self.default.fold_with(folder),
default_def_id: self.default_def_id,
}
}
-impl<'tcx> TypeFoldable<'tcx> for ty::ObjectLifetimeDefault {
+impl<'tcx> TypeFoldable<'tcx> for ty::ObjectLifetimeDefault<'tcx> {
fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
match *self {
ty::ObjectLifetimeDefault::Ambiguous =>
}
}
-impl<'tcx> TypeFoldable<'tcx> for ty::RegionParameterDef {
+impl<'tcx> TypeFoldable<'tcx> for ty::RegionParameterDef<'tcx> {
fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
ty::RegionParameterDef {
name: self.name,
def_id: self.def_id,
- space: self.space,
index: self.index,
bounds: self.bounds.fold_with(folder),
}
}
}
-impl<'tcx> TypeFoldable<'tcx> for ty::Generics<'tcx> {
- fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
- ty::Generics {
- types: self.types.fold_with(folder),
- regions: self.regions.fold_with(folder),
- }
- }
-
- fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool {
- self.types.visit_with(visitor) || self.regions.visit_with(visitor)
- }
-}
-
-impl<'tcx> TypeFoldable<'tcx> for ty::GenericPredicates<'tcx> {
- fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
- ty::GenericPredicates {
- predicates: self.predicates.fold_with(folder),
- }
- }
-
- fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool {
- self.predicates.visit_with(visitor)
- }
-}
-
impl<'tcx> TypeFoldable<'tcx> for ty::Predicate<'tcx> {
fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
match *self {
ty::Predicate::Trait(ref a) =>
ty::Predicate::Trait(a.fold_with(folder)),
- ty::Predicate::Rfc1592(ref a) =>
- ty::Predicate::Rfc1592(a.fold_with(folder)),
ty::Predicate::Equate(ref binder) =>
ty::Predicate::Equate(binder.fold_with(folder)),
ty::Predicate::RegionOutlives(ref binder) =>
fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool {
match *self {
ty::Predicate::Trait(ref a) => a.visit_with(visitor),
- ty::Predicate::Rfc1592(ref a) => a.visit_with(visitor),
ty::Predicate::Equate(ref binder) => binder.visit_with(visitor),
ty::Predicate::RegionOutlives(ref binder) => binder.visit_with(visitor),
ty::Predicate::TypeOutlives(ref binder) => binder.visit_with(visitor),
}
}
+impl<'tcx> TypeFoldable<'tcx> for ty::ExistentialProjection<'tcx> {
+ fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
+ ty::ExistentialProjection {
+ trait_ref: self.trait_ref.fold_with(folder),
+ item_name: self.item_name,
+ ty: self.ty.fold_with(folder),
+ }
+ }
+
+ fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool {
+ self.trait_ref.visit_with(visitor) || self.ty.visit_with(visitor)
+ }
+}
+
impl<'tcx> TypeFoldable<'tcx> for ty::ProjectionTy<'tcx> {
fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
ty::ProjectionTy {
}
}
-impl<'tcx> TypeFoldable<'tcx> for ty::ParameterEnvironment<'tcx> {
- fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
- ty::ParameterEnvironment {
- free_substs: self.free_substs.fold_with(folder),
- implicit_region_bound: self.implicit_region_bound.fold_with(folder),
- caller_bounds: self.caller_bounds.fold_with(folder),
- free_id_outlive: self.free_id_outlive,
- }
- }
-
- fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool {
- self.free_substs.visit_with(visitor) ||
- self.implicit_region_bound.visit_with(visitor) ||
- self.caller_bounds.visit_with(visitor)
- }
-}
-
-impl<'tcx> TypeFoldable<'tcx> for ty::TypeScheme<'tcx> {
- fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
- ty::TypeScheme {
- generics: self.generics.fold_with(folder),
- ty: self.ty.fold_with(folder),
- }
- }
-
- fn super_visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> bool {
- self.generics.visit_with(visitor) || self.ty.visit_with(visitor)
- }
-}
-
impl<'tcx, T: TypeFoldable<'tcx>> TypeFoldable<'tcx> for ty::error::ExpectedFound<T> {
fn super_fold_with<'gcx: 'tcx, F: TypeFolder<'gcx, 'tcx>>(&self, folder: &mut F) -> Self {
ty::error::ExpectedFound {
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