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
sourceimpl<'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
sourceimpl<'tcx> ArenaAllocatable<'tcx, IsNotCopy> for WherePredicate<'tcx>
impl<'tcx> ArenaAllocatable<'tcx, IsNotCopy> for WherePredicate<'tcx>
fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut Self
fn allocate_from_iter<'a>(
arena: &'a Arena<'tcx>,
iter: impl IntoIterator<Item = Self>
) -> &'a mut [Self]ⓘNotable traits for &[u8]impl Read for &[u8]impl Write for &mut [u8]
sourceimpl<'hir> Debug for WherePredicate<'hir>
impl<'hir> Debug for WherePredicate<'hir>
sourceimpl<'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)
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
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
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: 56 bytes
Size for each variant:
BoundPredicate
: 56 bytesRegionPredicate
: 40 bytesEqPredicate
: 24 bytes