Expand description
The subject of a ClosureOutlivesRequirement
– that is, the thing
that must outlive some region.
Variants
Ty(Ty<'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
.
The type here is guaranteed not to contain any free regions at present.
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
sourceimpl<'tcx> Clone for ClosureOutlivesSubject<'tcx>
impl<'tcx> Clone for ClosureOutlivesSubject<'tcx>
sourcefn clone(&self) -> ClosureOutlivesSubject<'tcx>
fn clone(&self) -> ClosureOutlivesSubject<'tcx>
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresourceimpl<'tcx> Debug for ClosureOutlivesSubject<'tcx>
impl<'tcx> Debug for ClosureOutlivesSubject<'tcx>
sourceimpl<'tcx, __D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<__D> for ClosureOutlivesSubject<'tcx>
impl<'tcx, __D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<__D> for ClosureOutlivesSubject<'tcx>
sourceimpl<'tcx, __E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<__E> for ClosureOutlivesSubject<'tcx>
impl<'tcx, __E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<__E> for ClosureOutlivesSubject<'tcx>
sourceimpl<'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
sourceimpl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere
T: Copy,
fn allocate_on(self, arena: &'a Arena<'tcx>) -> &'a mut T
fn allocate_from_iter(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = T>
) -> &'a mut [T]ⓘNotable traits for &[u8]impl Read for &[u8]impl Write for &mut [u8]
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<Ctxt, T> DepNodeParams<Ctxt> for Twhere
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
impl<Ctxt, T> DepNodeParams<Ctxt> for Twhere
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
default fn fingerprint_style() -> FingerprintStyle
sourcedefault fn to_fingerprint(&self, tcx: Ctxt) -> Fingerprint
default fn to_fingerprint(&self, tcx: Ctxt) -> 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). Read more
default fn to_debug_str(&self, Ctxt) -> String
sourcedefault fn recover(Ctxt, &DepNode<<Ctxt as DepContext>::DepKind>) -> Option<T>
default fn recover(Ctxt, &DepNode<<Ctxt as DepContext>::DepKind>) -> 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. Read moresourceimpl<T, R> InternIteratorElement<T, R> for T
impl<T, R> InternIteratorElement<T, R> for T
type Output = R
fn intern_with<I, F>(iter: I, f: F) -> <T as InternIteratorElement<T, R>>::Outputwhere
I: Iterator<Item = T>,
F: FnOnce(&[T]) -> R,
sourceimpl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
sourceimpl<CTX, T> Value<CTX> for Twhere
CTX: DepContext,
impl<CTX, T> Value<CTX> for Twhere
CTX: DepContext,
default fn from_cycle_error(tcx: CTX) -> T
impl<'a, T> Captures<'a> for Twhere
T: ?Sized,
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