Struct rustc_middle::ty::fold::BoundVarReplacer
source · [−]struct BoundVarReplacer<'a, 'tcx> {
tcx: TyCtxt<'tcx>,
current_index: DebruijnIndex,
fld_r: Option<&'a mut (dyn FnMut(BoundRegion) -> Region<'tcx> + 'a)>,
fld_t: Option<&'a mut (dyn FnMut(BoundTy) -> Ty<'tcx> + 'a)>,
fld_c: Option<&'a mut (dyn FnMut(BoundVar, Ty<'tcx>) -> &'tcx Const<'tcx> + 'a)>,
}Expand description
Replaces the escaping bound vars (late bound regions or bound types) in a type.
Fields
tcx: TyCtxt<'tcx>current_index: DebruijnIndexAs with RegionFolder, represents the index of a binder just outside
the ones we have visited.
fld_r: Option<&'a mut (dyn FnMut(BoundRegion) -> Region<'tcx> + 'a)>fld_t: Option<&'a mut (dyn FnMut(BoundTy) -> Ty<'tcx> + 'a)>fld_c: Option<&'a mut (dyn FnMut(BoundVar, Ty<'tcx>) -> &'tcx Const<'tcx> + 'a)>Implementations
sourceimpl<'a, 'tcx> BoundVarReplacer<'a, 'tcx>
impl<'a, 'tcx> BoundVarReplacer<'a, 'tcx>
Trait Implementations
sourceimpl<'a, 'tcx> TypeFolder<'tcx> for BoundVarReplacer<'a, 'tcx>
impl<'a, 'tcx> TypeFolder<'tcx> for BoundVarReplacer<'a, 'tcx>
fn tcx<'b>(&'b self) -> TyCtxt<'tcx>
fn fold_binder<T: TypeFoldable<'tcx>>(
&mut self,
t: Binder<'tcx, T>
) -> Binder<'tcx, T>
fn fold_ty(&mut self, t: Ty<'tcx>) -> Ty<'tcx>
fn fold_region(&mut self, r: Region<'tcx>) -> Region<'tcx>
fn fold_const(&mut self, ct: &'tcx Const<'tcx>) -> &'tcx Const<'tcx>
type Error = !
fn fold_predicate(&mut self, p: Predicate<'tcx>) -> Predicate<'tcx> where
Self: TypeFolder<'tcx, Error = !>,
fn fold_mir_const(&mut self, c: ConstantKind<'tcx>) -> ConstantKind<'tcx> where
Self: TypeFolder<'tcx, Error = !>,
Auto Trait Implementations
impl<'a, 'tcx> !RefUnwindSafe for BoundVarReplacer<'a, 'tcx>
impl<'a, 'tcx> !Send for BoundVarReplacer<'a, 'tcx>
impl<'a, 'tcx> !Sync for BoundVarReplacer<'a, 'tcx>
impl<'a, 'tcx> Unpin for BoundVarReplacer<'a, 'tcx> where
'tcx: 'a,
impl<'a, 'tcx> !UnwindSafe for BoundVarReplacer<'a, 'tcx>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<'tcx, F> FallibleTypeFolder<'tcx> for F where
F: TypeFolder<'tcx, Error = !>,
impl<'tcx, F> FallibleTypeFolder<'tcx> for F where
F: TypeFolder<'tcx, Error = !>,
fn try_fold_binder<T>(
&mut self,
t: Binder<'tcx, T>
) -> Result<Binder<'tcx, T>, Self::Error> where
T: TypeFoldable<'tcx>,
fn try_fold_ty(&mut self, t: Ty<'tcx>) -> Result<Ty<'tcx>, Self::Error>
fn try_fold_region(
&mut self,
r: Region<'tcx>
) -> Result<Region<'tcx>, Self::Error>
fn try_fold_const(
&mut self,
c: &'tcx Const<'tcx>
) -> Result<&'tcx Const<'tcx>, Self::Error>
fn try_fold_predicate(
&mut self,
p: Predicate<'tcx>
) -> Result<Predicate<'tcx>, Self::Error>
fn try_fold_mir_const(
&mut self,
c: ConstantKind<'tcx>
) -> Result<ConstantKind<'tcx>, Self::Error>
sourceimpl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
impl<'a, T> Captures<'a> for T where
T: ?Sized,
Layout
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.
Size: 64 bytes