Enum rustc_hir::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 binding (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> 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
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