pub enum SelectionError<'tcx> {
Unimplemented,
SignatureMismatch(Box<SignatureMismatchData<'tcx>>),
TraitDynIncompatible(DefId),
NotConstEvaluatable(NotConstEvaluatable),
Overflow(OverflowError),
OpaqueTypeAutoTraitLeakageUnknown(DefId),
ConstArgHasWrongType {
ct: Const<'tcx>,
ct_ty: Ty<'tcx>,
expected_ty: Ty<'tcx>,
},
}
Variants§
Unimplemented
The trait is not implemented.
SignatureMismatch(Box<SignatureMismatchData<'tcx>>)
After a closure impl has selected, its “outputs” were evaluated
(which for closures includes the “input” type params) and they
didn’t resolve. See confirm_poly_trait_refs
for more.
TraitDynIncompatible(DefId)
The trait pointed by DefId
is dyn-incompatible.
NotConstEvaluatable(NotConstEvaluatable)
A given constant couldn’t be evaluated.
Overflow(OverflowError)
Exceeded the recursion depth during type projection.
OpaqueTypeAutoTraitLeakageUnknown(DefId)
Computing an opaque type’s hidden type caused an error (e.g. a cycle error). We can thus not know whether the hidden type implements an auto trait, so we should not presume anything about it.
ConstArgHasWrongType
Error for a ConstArgHasType
goal
Trait Implementations§
Source§impl<'tcx> Clone for SelectionError<'tcx>
impl<'tcx> Clone for SelectionError<'tcx>
Source§fn clone(&self) -> SelectionError<'tcx>
fn clone(&self) -> SelectionError<'tcx>
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moreSource§impl<'tcx> Debug for SelectionError<'tcx>
impl<'tcx> Debug for SelectionError<'tcx>
Source§impl<'tcx> From<OverflowError> for SelectionError<'tcx>
impl<'tcx> From<OverflowError> for SelectionError<'tcx>
Source§fn from(overflow_error: OverflowError) -> SelectionError<'tcx>
fn from(overflow_error: OverflowError) -> SelectionError<'tcx>
Source§impl<'tcx> PartialEq for SelectionError<'tcx>
impl<'tcx> PartialEq for SelectionError<'tcx>
Source§impl<'tcx> TypeVisitable<TyCtxt<'tcx>> for SelectionError<'tcx>
impl<'tcx> TypeVisitable<TyCtxt<'tcx>> for SelectionError<'tcx>
Source§fn visit_with<__V: TypeVisitor<TyCtxt<'tcx>>>(
&self,
__visitor: &mut __V,
) -> __V::Result
fn visit_with<__V: TypeVisitor<TyCtxt<'tcx>>>( &self, __visitor: &mut __V, ) -> __V::Result
impl<'tcx> Eq for SelectionError<'tcx>
impl<'tcx> StructuralPartialEq for SelectionError<'tcx>
Auto Trait Implementations§
impl<'tcx> DynSend for SelectionError<'tcx>
impl<'tcx> DynSync for SelectionError<'tcx>
impl<'tcx> Freeze for SelectionError<'tcx>
impl<'tcx> !RefUnwindSafe for SelectionError<'tcx>
impl<'tcx> Send for SelectionError<'tcx>
impl<'tcx> Sync for SelectionError<'tcx>
impl<'tcx> Unpin for SelectionError<'tcx>
impl<'tcx> !UnwindSafe for SelectionError<'tcx>
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Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
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Size: 32 bytes
Size for each variant:
Unimplemented
: 0 bytesSignatureMismatch
: 15 bytesTraitDynIncompatible
: 11 bytesNotConstEvaluatable
: 1 byteOverflow
: 1 byteOpaqueTypeAutoTraitLeakageUnknown
: 11 bytesConstArgHasWrongType
: 31 bytes