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

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

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

type BreakTy = !

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

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

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