Enum rustc_hir::WherePredicate
source · pub enum WherePredicate<'hir> {
BoundPredicate(WhereBoundPredicate<'hir>),
RegionPredicate(WhereRegionPredicate<'hir>),
EqPredicate(WhereEqPredicate<'hir>),
}
Expand description
A single predicate in a where-clause.
Variants§
BoundPredicate(WhereBoundPredicate<'hir>)
A type bound (e.g., for<'c> Foo: Send + Clone + 'c
).
RegionPredicate(WhereRegionPredicate<'hir>)
A lifetime predicate (e.g., 'a: 'b + 'c
).
EqPredicate(WhereEqPredicate<'hir>)
An equality predicate (unsupported).
Implementations§
source§impl<'hir> WherePredicate<'hir>
impl<'hir> WherePredicate<'hir>
pub fn span(&self) -> Span
pub fn in_where_clause(&self) -> bool
pub fn bounds(&self) -> GenericBounds<'hir>
Trait Implementations§
source§impl<'hir> Clone for WherePredicate<'hir>
impl<'hir> Clone for WherePredicate<'hir>
source§fn clone(&self) -> WherePredicate<'hir>
fn clone(&self) -> WherePredicate<'hir>
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<'hir> Debug for WherePredicate<'hir>
impl<'hir> Debug for WherePredicate<'hir>
source§impl<'hir, __CTX> HashStable<__CTX> for WherePredicate<'hir>where
__CTX: HashStableContext,
impl<'hir, __CTX> HashStable<__CTX> for WherePredicate<'hir>where
__CTX: HashStableContext,
fn hash_stable(&self, __hcx: &mut __CTX, __hasher: &mut StableHasher)
impl<'hir> Copy for WherePredicate<'hir>
Auto Trait Implementations§
impl<'hir> Freeze for WherePredicate<'hir>
impl<'hir> RefUnwindSafe for WherePredicate<'hir>
impl<'hir> !Send for WherePredicate<'hir>
impl<'hir> !Sync for WherePredicate<'hir>
impl<'hir> Unpin for WherePredicate<'hir>
impl<'hir> UnwindSafe for WherePredicate<'hir>
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> CloneToUninit for Twhere
T: Copy,
impl<T> CloneToUninit for Twhere
T: Copy,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§default unsafe fn clone_to_uninit(&self, dst: *mut T)
default unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)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<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,
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
Size for each variant:
BoundPredicate
: 64 bytesRegionPredicate
: 48 bytesEqPredicate
: 32 bytes