Struct rustc_infer::traits::util::PredicateSet
source · pub struct PredicateSet<'tcx> {
tcx: TyCtxt<'tcx>,
set: FxHashSet<Predicate<'tcx>>,
}
Fields§
§tcx: TyCtxt<'tcx>
§set: FxHashSet<Predicate<'tcx>>
Implementations§
source§impl<'tcx> PredicateSet<'tcx>
impl<'tcx> PredicateSet<'tcx>
pub fn new(tcx: TyCtxt<'tcx>) -> Self
sourcepub fn insert(&mut self, pred: Predicate<'tcx>) -> bool
pub fn insert(&mut self, pred: Predicate<'tcx>) -> bool
Adds a predicate to the set.
Returns whether the predicate was newly inserted. That is:
- If the set did not previously contain this predicate,
true
is returned. - If the set already contained this predicate,
false
is returned, and the set is not modified: original predicate is not replaced, and the predicate passed as argument is dropped.
Trait Implementations§
source§impl<'tcx> Extend<Predicate<'tcx>> for PredicateSet<'tcx>
impl<'tcx> Extend<Predicate<'tcx>> for PredicateSet<'tcx>
source§fn extend<I: IntoIterator<Item = Predicate<'tcx>>>(&mut self, iter: I)
fn extend<I: IntoIterator<Item = Predicate<'tcx>>>(&mut self, iter: I)
Extends a collection with the contents of an iterator. Read more
source§fn extend_one(&mut self, pred: Predicate<'tcx>)
fn extend_one(&mut self, pred: Predicate<'tcx>)
🔬This is a nightly-only experimental API. (
extend_one
)Extends a collection with exactly one element.
source§fn extend_reserve(&mut self, additional: usize)
fn extend_reserve(&mut self, additional: usize)
🔬This is a nightly-only experimental API. (
extend_one
)Reserves capacity in a collection for the given number of additional elements. Read more
Auto Trait Implementations§
impl<'tcx> !RefUnwindSafe for PredicateSet<'tcx>
impl<'tcx> !Send for PredicateSet<'tcx>
impl<'tcx> !Sync for PredicateSet<'tcx>
impl<'tcx> Unpin for PredicateSet<'tcx>
impl<'tcx> !UnwindSafe for PredicateSet<'tcx>
Blanket Implementations§
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: 40 bytes