Struct rustc_middle::ty::print::pretty::RegionFolder

struct RegionFolder<'a, 'tcx> {
    tcx: TyCtxt<'tcx>,
    current_index: DebruijnIndex,
    region_map: BTreeMap<BoundRegion, Region<'tcx>>,
    name: &'a mut (dyn FnMut(BoundRegion) -> Region<'tcx> + 'a),
}

Folds through bound vars and placeholders, naming them

Fields

tcx: TyCtxt<'tcx>

current_index: DebruijnIndex

region_map: BTreeMap<BoundRegion, Region<'tcx>>

name: &'a mut (dyn FnMut(BoundRegion) -> Region<'tcx> + 'a)

Trait Implementations

impl<'a, 'tcx> TypeFolder<'tcx> for RegionFolder<'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>

type Error = !

fn fold_const(&mut self, c: &'tcx Const<'tcx>) -> &'tcx Const<'tcx> where
    Self: TypeFolder<'tcx, 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 = !>, 

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: 56 bytes