Enum rustc_middle::mir::ClosureOutlivesSubject
source · pub enum ClosureOutlivesSubject<'tcx> {
Ty(ClosureOutlivesSubjectTy<'tcx>),
Region(RegionVid),
}
Expand description
The subject of a ClosureOutlivesRequirement
– that is, the thing
that must outlive some region.
Variants§
Ty(ClosureOutlivesSubjectTy<'tcx>)
Subject is a type, typically a type parameter, but could also
be a projection. Indicates a requirement like T: 'a
being
passed to the caller, where the type here is T
.
Region(RegionVid)
Subject is a free region from the closure. Indicates a requirement
like 'a: 'b
being passed to the caller; the region here is 'a
.
Trait Implementations§
source§impl<'tcx> Clone for ClosureOutlivesSubject<'tcx>
impl<'tcx> Clone for ClosureOutlivesSubject<'tcx>
source§fn clone(&self) -> ClosureOutlivesSubject<'tcx>
fn clone(&self) -> ClosureOutlivesSubject<'tcx>
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl<'tcx> Debug for ClosureOutlivesSubject<'tcx>
impl<'tcx> Debug for ClosureOutlivesSubject<'tcx>
source§impl<'tcx, '__ctx> HashStable<StableHashingContext<'__ctx>> for ClosureOutlivesSubject<'tcx>
impl<'tcx, '__ctx> HashStable<StableHashingContext<'__ctx>> for ClosureOutlivesSubject<'tcx>
fn hash_stable( &self, __hcx: &mut StableHashingContext<'__ctx>, __hasher: &mut StableHasher )
impl<'tcx> Copy for ClosureOutlivesSubject<'tcx>
Auto Trait Implementations§
impl<'tcx> !RefUnwindSafe for ClosureOutlivesSubject<'tcx>
impl<'tcx> Send for ClosureOutlivesSubject<'tcx>
impl<'tcx> Sync for ClosureOutlivesSubject<'tcx>
impl<'tcx> Unpin for ClosureOutlivesSubject<'tcx>
impl<'tcx> !UnwindSafe for ClosureOutlivesSubject<'tcx>
Blanket Implementations§
source§impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere T: Copy,
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T> ) -> &'a mut [T]
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<Tcx, T> DepNodeParams<Tcx> for Twhere
Tcx: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
impl<Tcx, T> DepNodeParams<Tcx> for Twhere Tcx: DepContext, T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
default fn fingerprint_style() -> FingerprintStyle
source§default fn to_fingerprint(&self, tcx: Tcx) -> Fingerprint
default fn to_fingerprint(&self, tcx: Tcx) -> Fingerprint
This method turns the parameters of a DepNodeConstructor into an opaque
Fingerprint to be used in DepNode.
Not all DepNodeParams support being turned into a Fingerprint (they
don’t need to if the corresponding DepNode is anonymous).
default fn to_debug_str(&self, _: Tcx) -> String
source§default fn recover(_: Tcx, _: &DepNode) -> Option<T>
default fn recover(_: Tcx, _: &DepNode) -> Option<T>
This method tries to recover the query key from the given
DepNode
,
something which is needed when forcing DepNode
s during red-green
evaluation. The query system will only call this method if
fingerprint_style()
is not FingerprintStyle::Opaque
.
It is always valid to return None
here, in which case incremental
compilation will treat the query as having changed instead of forcing it.source§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<'tcx, T> ToPredicate<'tcx, T> for T
impl<'tcx, T> ToPredicate<'tcx, T> for T
fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> 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: &[QueryInfo], _guar: ErrorGuaranteed ) -> 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: 16 bytes
Size for each variant:
Ty
: 12 bytesRegion
: 4 bytes