Type Definition rustc_infer::source ·
infer:: outlives:: env:: RegionBoundPairs
pub type RegionBoundPairs<'tcx> = FxIndexSet<OutlivesPredicate<GenericKind<'tcx>, Region<'tcx>>>;
“Region-bound pairs” tracks outlives relations that are known to
be true, either because of explicit where-clauses like
T: 'a or
because of implied bounds.
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.