Struct rustc_trait_selection::traits::project::PlaceholderReplacer

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 Vec<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 Vec<Option<UniverseIndex>>

current_index: DebruijnIndex

Implementations

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 Vec<Option<UniverseIndex>>,
    value: T
) -> T

Trait Implementations

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: &'tcx Const<'tcx>) -> &'tcx Const<'tcx>

type Error = !

fn fold_predicate(&mut self, p: Predicate) -> Predicate where
    Self: TypeFolder<'tcx, Error = !>, 

fn fold_mir_const(&mut self, c: ConstantKind) -> ConstantKind where
    Self: TypeFolder<'tcx, Error = !>, 

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