rustc_borrowck::region_infer::reverse_sccs

Struct ReverseSccGraph

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pub(crate) struct ReverseSccGraph {
    graph: VecGraph<ConstraintSccIndex>,
    scc_regions: FxIndexMap<ConstraintSccIndex, Range<usize>>,
    universal_regions: Vec<RegionVid>,
}

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§graph: VecGraph<ConstraintSccIndex>§scc_regions: FxIndexMap<ConstraintSccIndex, Range<usize>>

For each SCC, the range of universal_regions that use that SCC as their value.

§universal_regions: Vec<RegionVid>

All of the universal regions, in grouped so that scc_regions can index into here.

Implementations§

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impl ReverseSccGraph

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pub(super) fn upper_bounds<'a>( &'a self, scc0: ConstraintSccIndex, ) -> impl Iterator<Item = RegionVid> + 'a

Find all universal regions that are required to outlive the given SCC.

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Size: 128 bytes