struct LateBoundRegionsCollector {
current_index: DebruijnIndex,
regions: FxIndexSet<BoundRegionKind>,
just_constrained: bool,
}
Expand description
Collects all the late-bound regions at the innermost binding level into a hash set.
Fields§
§current_index: DebruijnIndex
§regions: FxIndexSet<BoundRegionKind>
§just_constrained: bool
true
if we only want regions that are known to be
“constrained” when you equate this type with another type. In
particular, if you have e.g., &'a u32
and &'b u32
, equating
them constraints 'a == 'b
. But if you have <&'a u32 as Trait>::Foo
and <&'b u32 as Trait>::Foo
, normalizing those
types may mean that 'a
and 'b
don’t appear in the results,
so they are not considered constrained.
Implementations§
Trait Implementations§
Source§impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for LateBoundRegionsCollector
impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for LateBoundRegionsCollector
fn visit_binder<T: TypeVisitable<TyCtxt<'tcx>>>(&mut self, t: &Binder<'tcx, T>)
fn visit_ty(&mut self, t: Ty<'tcx>)
fn visit_const(&mut self, c: Const<'tcx>)
fn visit_region(&mut self, r: Region<'tcx>)
type Result = ()
fn visit_predicate(&mut self, p: <I as Interner>::Predicate) -> Self::Result
fn visit_clauses(&mut self, p: <I as Interner>::Clauses) -> Self::Result
fn visit_error( &mut self, _guar: <I as Interner>::ErrorGuaranteed, ) -> Self::Result
Auto Trait Implementations§
impl DynSend for LateBoundRegionsCollector
impl DynSync for LateBoundRegionsCollector
impl Freeze for LateBoundRegionsCollector
impl RefUnwindSafe for LateBoundRegionsCollector
impl Send for LateBoundRegionsCollector
impl Sync for LateBoundRegionsCollector
impl Unpin for LateBoundRegionsCollector
impl UnwindSafe for LateBoundRegionsCollector
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T, R> CollectAndApply<T, R> for T
impl<T, R> CollectAndApply<T, R> for T
Source§impl<T> Filterable for T
impl<T> Filterable for T
Source§fn filterable(
self,
filter_name: &'static str,
) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
Creates a filterable data provider with the given name for debugging. Read more
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moreSource§impl<P> IntoQueryParam<P> for P
impl<P> IntoQueryParam<P> for P
fn into_query_param(self) -> P
Source§impl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
Source§impl<T> Pointable for T
impl<T> Pointable for T
Source§impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
Source§impl<I, T> UpcastFrom<I, T> for T
impl<I, T> UpcastFrom<I, T> for T
fn upcast_from(from: T, _tcx: I) -> T
Source§impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed, ) -> T
Source§impl<T> WithSubscriber for T
impl<T> WithSubscriber for T
Source§fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
Source§fn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
impl<'a, T> Captures<'a> for Twhere
T: ?Sized,
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T: 'static,
impl<T> MaybeSendSync for 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: 64 bytes