Struct rustc_trait_selection::infer::region_constraints::MemberConstraint [−][src]
pub struct MemberConstraint<'tcx> {
pub opaque_type_def_id: DefId,
pub definition_span: Span,
pub hidden_ty: &'tcx TyS<'tcx>,
pub member_region: &'tcx RegionKind,
pub choice_regions: Rc<Vec<&'tcx RegionKind, Global>>,
}
Expand description
Requires that region
must be equal to one of the regions in choice_regions
.
We often denote this using the syntax:
R0 member of [O1..On]
Fields
opaque_type_def_id: DefId
The DefId
of the opaque type causing this constraint: used for error reporting.
definition_span: Span
The span where the hidden type was instantiated.
The hidden type in which member_region
appears: used for error reporting.
member_region: &'tcx RegionKind
The region R0
.
choice_regions: Rc<Vec<&'tcx RegionKind, Global>>
The options O1..On
.
Auto Trait Implementations
impl<'tcx> !RefUnwindSafe for MemberConstraint<'tcx>
impl<'tcx> !Send for MemberConstraint<'tcx>
impl<'tcx> !Sync for MemberConstraint<'tcx>
impl<'tcx> Unpin for MemberConstraint<'tcx>
impl<'tcx> !UnwindSafe for MemberConstraint<'tcx>
Blanket Implementations
Mutably borrows from an owned value. Read more
pub fn subst_spanned(
self,
tcx: TyCtxt<'tcx>,
substs: &[GenericArg<'tcx>],
span: Option<Span>
) -> T
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: 40 bytes