Struct rustc_borrowck::type_check::free_region_relations::UniversalRegionRelationsBuilder

struct UniversalRegionRelationsBuilder<'this, 'tcx> {
    infcx: &'this InferCtxt<'tcx>,
    param_env: ParamEnv<'tcx>,
    universal_regions: Rc<UniversalRegions<'tcx>>,
    implicit_region_bound: Region<'tcx>,
    constraints: &'this mut MirTypeckRegionConstraints<'tcx>,
    outlives: TransitiveRelationBuilder<RegionVid>,
    inverse_outlives: TransitiveRelationBuilder<RegionVid>,
    region_bound_pairs: RegionBoundPairs<'tcx>,
}

Fields

infcx: &'this InferCtxt<'tcx>

param_env: ParamEnv<'tcx>

universal_regions: Rc<UniversalRegions<'tcx>>

implicit_region_bound: Region<'tcx>

constraints: &'this mut MirTypeckRegionConstraints<'tcx>

outlives: TransitiveRelationBuilder<RegionVid>

inverse_outlives: TransitiveRelationBuilder<RegionVid>

region_bound_pairs: RegionBoundPairs<'tcx>

Implementations

impl<'tcx> UniversalRegionRelationsBuilder<'_, 'tcx>

fn relate_universal_regions(&mut self, fr_a: RegionVid, fr_b: RegionVid)

Records in the outlives_relation (and inverse_outlives_relation) that fr_a: fr_b.

pub(crate) fn create(self) -> CreateResult<'tcx>

fn add_implied_bounds( &mut self, ty: Ty<'tcx>, span: Span ) -> Option<&'tcx QueryRegionConstraints<'tcx>>

Update the type of a single local, which should represent either the return type of the MIR or one of its arguments. At the same time, compute and add any implied bounds that come from this local.

fn add_outlives_bounds<I>(&mut self, outlives_bounds: I)

where I: IntoIterator<Item = OutlivesBound<'tcx>>,

Registers the OutlivesBound items from outlives_bounds in the outlives relation as well as the region-bound pairs listing.

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: 272 bytes