Struct rustc_trait_selection::infer::resolve::OpportunisticRegionResolver [−][src]
pub struct OpportunisticRegionResolver<'a, 'tcx> {
infcx: &InferCtxt,
}Expand description
The opportunistic region resolver opportunistically resolves regions variables to the variable with the least variable id. It is used when normlizing projections to avoid hitting the recursion limit by creating many versions of a predicate for types that in the end have to unify.
If you want to resolve type and const variables as well, call InferCtxt::resolve_vars_if_possible first.
Fields
infcx: &InferCtxtAuto Trait Implementations
impl<'a, 'tcx> !RefUnwindSafe for OpportunisticRegionResolver
impl<'a, 'tcx> !Send for OpportunisticRegionResolver
impl<'a, 'tcx> !Sync for OpportunisticRegionResolver
impl<'a, 'tcx> Unpin for OpportunisticRegionResolver where
'tcx: 'a,
impl<'a, 'tcx> !UnwindSafe for OpportunisticRegionResolver
Blanket Implementations
Mutably borrows from an owned value. Read more
pub fn try_fold_binder<T>(
&mut self,
t: Binder<T>
) -> Result<Binder<T>, <F as TypeFolder<'tcx>>::Error> where
T: TypeFoldable<'tcx>,
pub fn try_fold_region(
&mut self,
r: &RegionKind
) -> Result<&RegionKind, <F as TypeFolder<'tcx>>::Error>
pub fn try_fold_predicate(
&mut self,
p: Predicate
) -> Result<Predicate, <F as TypeFolder<'tcx>>::Error>
pub fn try_fold_mir_const(
&mut self,
c: ConstantKind
) -> Result<ConstantKind, <F as TypeFolder<'tcx>>::Error>
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: 8 bytes