Struct rustc_mir_build::build::matches::util::FakeBorrowCollector

pub(super) struct FakeBorrowCollector<'a, 'b, 'tcx> {
    cx: &'a mut Builder<'b, 'tcx>,
    scrutinee_base: PlaceBase,
    fake_borrows: FxIndexMap<Place<'tcx>, FakeBorrowKind>,
}

Fields

cx: &'a mut Builder<'b, 'tcx>

scrutinee_base: PlaceBase

Base of the scrutinee place. Used to distinguish bindings inside the scrutinee place from bindings inside deref patterns.

fake_borrows: FxIndexMap<Place<'tcx>, FakeBorrowKind>

Store for each place the kind of borrow to take. In case of conflicts, we take the strongest borrow (i.e. Deep > Shallow). Invariant: for any place in fake_borrows, all the prefixes of this place that are dereferences are also borrowed with the same of stronger borrow kind.

Implementations

impl<'a, 'b, 'tcx> FakeBorrowCollector<'a, 'b, 'tcx>

fn fake_borrow(&mut self, place: Place<'tcx>, kind: FakeBorrowKind)

fn fake_borrow_deref_prefixes( &mut self, place: Place<'tcx>, kind: FakeBorrowKind, )

fn visit_candidate(&mut self, candidate: &Candidate<'_, 'tcx>)

fn visit_flat_pat(&mut self, flat_pat: &FlatPat<'_, 'tcx>)

fn visit_match_pair(&mut self, match_pair: &MatchPairTree<'_, 'tcx>)

fn visit_binding(&mut self, _: &Binding<'tcx>)

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: 80 bytes