enum BuiltinImplConditions<'tcx> {
Where(Binder<'tcx, Vec<Ty<'tcx>>>),
None,
Ambiguous,
}
Expand description
When does the builtin impl for T: Trait
apply?
Variants§
Where(Binder<'tcx, Vec<Ty<'tcx>>>)
The impl is conditional on T1, T2, ...: Trait
.
None
There is no built-in impl. There may be some other candidate (a where-clause or user-defined impl).
Ambiguous
It is unknown whether there is an impl.
Trait Implementations§
Auto Trait Implementations§
impl<'tcx> !RefUnwindSafe for BuiltinImplConditions<'tcx>
impl<'tcx> Send for BuiltinImplConditions<'tcx>
impl<'tcx> Sync for BuiltinImplConditions<'tcx>
impl<'tcx> Unpin for BuiltinImplConditions<'tcx>
impl<'tcx> !UnwindSafe for BuiltinImplConditions<'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
Size for each variant:
Where
: 32 bytesNone
: 0 bytesAmbiguous
: 0 bytes