Struct PlaceholderIndices 

pub(crate) struct PlaceholderIndices<'tcx> {
    indices: FxIndexSet<PlaceholderRegion<'tcx>>,
}

Maps from ty::PlaceholderRegion values that are used in the rest of rustc to the internal PlaceholderIndex values that are used in NLL.

Fields

indices: FxIndexSet<PlaceholderRegion<'tcx>>

Implementations

impl<'tcx> PlaceholderIndices<'tcx>

pub(crate) fn insert( &mut self, placeholder: PlaceholderRegion<'tcx>, ) -> PlaceholderIndex

Returns the PlaceholderIndex for the inserted PlaceholderRegion

pub(crate) fn lookup_index( &self, placeholder: PlaceholderRegion<'tcx>, ) -> PlaceholderIndex

pub(crate) fn lookup_placeholder( &self, placeholder: PlaceholderIndex, ) -> PlaceholderRegion<'tcx>

pub(crate) fn len(&self) -> usize

Trait Implementations

impl<'tcx> Clone for PlaceholderIndices<'tcx>

fn clone(&self) -> PlaceholderIndices<'tcx>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'tcx> Debug for PlaceholderIndices<'tcx>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'tcx> Default for PlaceholderIndices<'tcx>

fn default() -> PlaceholderIndices<'tcx>

Returns the “default value” for a type.

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