pub struct BoundVarReplacer<'me, 'tcx> {
    infcx: &'me InferCtxt<'tcx>,
    mapped_regions: BTreeMap<PlaceholderRegion, BoundRegion>,
    mapped_types: BTreeMap<PlaceholderType, BoundTy>,
    mapped_consts: BTreeMap<PlaceholderConst<'tcx>, BoundVar>,
    current_index: DebruijnIndex,
    universe_indices: &'me mut Vec<Option<UniverseIndex>>,
}

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§infcx: &'me InferCtxt<'tcx>§mapped_regions: BTreeMap<PlaceholderRegion, BoundRegion>§mapped_types: BTreeMap<PlaceholderType, BoundTy>§mapped_consts: BTreeMap<PlaceholderConst<'tcx>, BoundVar>§current_index: DebruijnIndex§universe_indices: &'me mut Vec<Option<UniverseIndex>>

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impl<'me, 'tcx> BoundVarReplacer<'me, 'tcx>

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pub fn replace_bound_vars<T: TypeFoldable<TyCtxt<'tcx>>>( infcx: &'me InferCtxt<'tcx>, universe_indices: &'me mut Vec<Option<UniverseIndex>>, value: T ) -> (T, BTreeMap<PlaceholderRegion, BoundRegion>, BTreeMap<PlaceholderType, BoundTy>, BTreeMap<PlaceholderConst<'tcx>, BoundVar>)

Returns Some if we were able to replace bound vars. If there are any bound vars that use a binding level above universe_indices.len(), we fail.

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fn universe_for(&mut self, debruijn: DebruijnIndex) -> UniverseIndex

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impl<'tcx> TypeFolder<TyCtxt<'tcx>> for BoundVarReplacer<'_, 'tcx>

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fn interner(&self) -> TyCtxt<'tcx>

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fn fold_binder<T: TypeFoldable<TyCtxt<'tcx>>>( &mut self, t: Binder<'tcx, T> ) -> Binder<'tcx, T>

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fn fold_region(&mut self, r: Region<'tcx>) -> Region<'tcx>

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fn fold_ty(&mut self, t: Ty<'tcx>) -> Ty<'tcx>

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fn fold_const(&mut self, ct: Const<'tcx>) -> Const<'tcx>

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fn fold_predicate(&mut self, p: Predicate<'tcx>) -> Predicate<'tcx>

Auto Trait Implementations§

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impl<'me, 'tcx> !RefUnwindSafe for BoundVarReplacer<'me, 'tcx>

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impl<'me, 'tcx> !Send for BoundVarReplacer<'me, 'tcx>

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impl<'me, 'tcx> !Sync for BoundVarReplacer<'me, 'tcx>

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impl<'me, 'tcx> Unpin for BoundVarReplacer<'me, 'tcx>

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impl<'me, 'tcx> !UnwindSafe for BoundVarReplacer<'me, 'tcx>

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<I, F> FallibleTypeFolder<I> for Fwhere I: Interner, F: TypeFolder<I>,

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type Error = !

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fn interner(&self) -> I

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fn try_fold_binder<T>( &mut self, t: <I as Interner>::Binder<T> ) -> Result<<I as Interner>::Binder<T>, !>where T: TypeFoldable<I>, <I as Interner>::Binder<T>: TypeSuperFoldable<I>,

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fn try_fold_ty( &mut self, t: <I as Interner>::Ty ) -> Result<<I as Interner>::Ty, !>where <I as Interner>::Ty: TypeSuperFoldable<I>,

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fn try_fold_region( &mut self, r: <I as Interner>::Region ) -> Result<<I as Interner>::Region, !>

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fn try_fold_const( &mut self, c: <I as Interner>::Const ) -> Result<<I as Interner>::Const, !>where <I as Interner>::Const: TypeSuperFoldable<I>,

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fn try_fold_predicate( &mut self, p: <I as Interner>::Predicate ) -> Result<<I as Interner>::Predicate, !>where <I as Interner>::Predicate: TypeSuperFoldable<I>,

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

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: 96 bytes