Struct rustc_traits::chalk::lowering::PlaceholdersCollector

pub(crate) struct PlaceholdersCollector {
    universe_index: UniverseIndex,
    pub(crate) next_ty_placeholder: usize,
    pub(crate) next_anon_region_placeholder: u32,
}

Used to collect Placeholders.

Fields

universe_index: UniverseIndex

next_ty_placeholder: usize

next_anon_region_placeholder: u32

Implementations

impl PlaceholdersCollector

pub(crate) fn new() -> Self

Trait Implementations

impl<'tcx> TypeVisitor<'tcx> for PlaceholdersCollector

fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<Self::BreakTy>

fn visit_region(&mut self, r: Region<'tcx>) -> ControlFlow<Self::BreakTy>

type BreakTy = !

fn visit_binder<T>(
    &mut self,
    t: &Binder<'tcx, T>
) -> ControlFlow<Self::BreakTy, ()>where
    T: TypeVisitable<'tcx>,

fn visit_const(&mut self, c: Const<'tcx>) -> ControlFlow<Self::BreakTy, ()>

fn visit_unevaluated(
    &mut self,
    uv: Unevaluated<'tcx, Option<Promoted>>
) -> ControlFlow<Self::BreakTy, ()>

fn visit_predicate(
    &mut self,
    p: Predicate<'tcx>
) -> ControlFlow<Self::BreakTy, ()>

fn visit_mir_const(
    &mut self,
    c: ConstantKind<'tcx>
) -> ControlFlow<Self::BreakTy, ()>

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: 16 bytes