Struct rustc_trait_selection::traits::project::PlaceholderReplacer
source · [−]pub struct PlaceholderReplacer<'me, 'tcx> {
infcx: &'me InferCtxt<'me, 'tcx>,
mapped_regions: BTreeMap<PlaceholderRegion, BoundRegion>,
mapped_types: BTreeMap<PlaceholderType, BoundTy>,
mapped_consts: BTreeMap<PlaceholderConst<'tcx>, BoundVar>,
universe_indices: &'me [Option<UniverseIndex>],
current_index: DebruijnIndex,
}Fields
infcx: &'me InferCtxt<'me, 'tcx>mapped_regions: BTreeMap<PlaceholderRegion, BoundRegion>mapped_types: BTreeMap<PlaceholderType, BoundTy>mapped_consts: BTreeMap<PlaceholderConst<'tcx>, BoundVar>universe_indices: &'me [Option<UniverseIndex>]current_index: DebruijnIndexImplementations
sourceimpl<'me, 'tcx> PlaceholderReplacer<'me, 'tcx>
impl<'me, 'tcx> PlaceholderReplacer<'me, 'tcx>
pub fn replace_placeholders<T: TypeFoldable<'tcx>>(
infcx: &'me InferCtxt<'me, 'tcx>,
mapped_regions: BTreeMap<PlaceholderRegion, BoundRegion>,
mapped_types: BTreeMap<PlaceholderType, BoundTy>,
mapped_consts: BTreeMap<PlaceholderConst<'tcx>, BoundVar>,
universe_indices: &'me [Option<UniverseIndex>],
value: T
) -> T
Trait Implementations
sourceimpl<'tcx> TypeFolder<'tcx> for PlaceholderReplacer<'_, 'tcx>
impl<'tcx> TypeFolder<'tcx> for PlaceholderReplacer<'_, '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_region(&mut self, r0: Region<'tcx>) -> Region<'tcx>
fn fold_ty(&mut self, ty: Ty<'tcx>) -> Ty<'tcx>
fn fold_const(&mut self, ct: Const<'tcx>) -> Const<'tcx>
fn fold_unevaluated(
&mut self,
uv: Unevaluated<'tcx, Option<Promoted>>
) -> Unevaluated<'tcx, Option<Promoted>>
fn fold_predicate(&mut self, p: Predicate<'tcx>) -> Predicate<'tcx>
fn fold_mir_const(&mut self, c: ConstantKind<'tcx>) -> ConstantKind<'tcx>
Auto Trait Implementations
impl<'me, 'tcx> !RefUnwindSafe for PlaceholderReplacer<'me, 'tcx>
impl<'me, 'tcx> !Send for PlaceholderReplacer<'me, 'tcx>
impl<'me, 'tcx> !Sync for PlaceholderReplacer<'me, 'tcx>
impl<'me, 'tcx> Unpin for PlaceholderReplacer<'me, 'tcx>where
'tcx: 'me,
impl<'me, 'tcx> !UnwindSafe for PlaceholderReplacer<'me, 'tcx>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<'tcx, F> FallibleTypeFolder<'tcx> for Fwhere
F: TypeFolder<'tcx>,
impl<'tcx, F> FallibleTypeFolder<'tcx> for Fwhere
F: TypeFolder<'tcx>,
type Error = !
fn tcx(&'a self) -> TyCtxt<'tcx>
fn try_fold_binder<T>(
&mut self,
t: Binder<'tcx, T>
) -> Result<Binder<'tcx, T>, !>where
T: TypeFoldable<'tcx>,
fn try_fold_ty(&mut self, t: Ty<'tcx>) -> Result<Ty<'tcx>, !>
fn try_fold_region(&mut self, r: Region<'tcx>) -> Result<Region<'tcx>, !>
fn try_fold_const(&mut self, c: Const<'tcx>) -> Result<Const<'tcx>, !>
fn try_fold_unevaluated(
&mut self,
c: Unevaluated<'tcx, Option<Promoted>>
) -> Result<Unevaluated<'tcx, Option<Promoted>>, !>
fn try_fold_predicate(
&mut self,
p: Predicate<'tcx>
) -> Result<Predicate<'tcx>, !>
fn try_fold_mir_const(
&mut self,
c: ConstantKind<'tcx>
) -> Result<ConstantKind<'tcx>, !>
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: 104 bytes