Enum rustc_middle::ty::error::TypeError
source · pub enum TypeError<'tcx> {
Show 27 variants
Mismatch,
ConstnessMismatch(ExpectedFound<BoundConstness>),
PolarityMismatch(ExpectedFound<PredicatePolarity>),
UnsafetyMismatch(ExpectedFound<Unsafety>),
AbiMismatch(ExpectedFound<Abi>),
Mutability,
ArgumentMutability(usize),
TupleSize(ExpectedFound<usize>),
FixedArraySize(ExpectedFound<u64>),
ArgCount,
FieldMisMatch(Symbol, Symbol),
RegionsDoesNotOutlive(Region<'tcx>, Region<'tcx>),
RegionsInsufficientlyPolymorphic(BoundRegionKind, Region<'tcx>),
RegionsPlaceholderMismatch,
Sorts(ExpectedFound<Ty<'tcx>>),
ArgumentSorts(ExpectedFound<Ty<'tcx>>, usize),
IntMismatch(ExpectedFound<IntVarValue>),
FloatMismatch(ExpectedFound<FloatTy>),
Traits(ExpectedFound<DefId>),
VariadicMismatch(ExpectedFound<bool>),
CyclicTy(Ty<'tcx>),
CyclicConst(Const<'tcx>),
ProjectionMismatched(ExpectedFound<DefId>),
ExistentialMismatch(ExpectedFound<&'tcx List<PolyExistentialPredicate<'tcx>>>),
ConstMismatch(ExpectedFound<Const<'tcx>>),
IntrinsicCast,
TargetFeatureCast(DefId),
}
Variants§
Mismatch
ConstnessMismatch(ExpectedFound<BoundConstness>)
PolarityMismatch(ExpectedFound<PredicatePolarity>)
UnsafetyMismatch(ExpectedFound<Unsafety>)
AbiMismatch(ExpectedFound<Abi>)
Mutability
ArgumentMutability(usize)
TupleSize(ExpectedFound<usize>)
FixedArraySize(ExpectedFound<u64>)
ArgCount
FieldMisMatch(Symbol, Symbol)
RegionsDoesNotOutlive(Region<'tcx>, Region<'tcx>)
RegionsInsufficientlyPolymorphic(BoundRegionKind, Region<'tcx>)
RegionsPlaceholderMismatch
Sorts(ExpectedFound<Ty<'tcx>>)
ArgumentSorts(ExpectedFound<Ty<'tcx>>, usize)
IntMismatch(ExpectedFound<IntVarValue>)
FloatMismatch(ExpectedFound<FloatTy>)
Traits(ExpectedFound<DefId>)
VariadicMismatch(ExpectedFound<bool>)
CyclicTy(Ty<'tcx>)
Instantiating a type variable with the given type would have created a cycle (because it appears somewhere within that type).
CyclicConst(Const<'tcx>)
ProjectionMismatched(ExpectedFound<DefId>)
ExistentialMismatch(ExpectedFound<&'tcx List<PolyExistentialPredicate<'tcx>>>)
ConstMismatch(ExpectedFound<Const<'tcx>>)
IntrinsicCast
TargetFeatureCast(DefId)
Safe #[target_feature]
functions are not assignable to safe function pointers.
Implementations§
source§impl<'tcx> TypeError<'tcx>
impl<'tcx> TypeError<'tcx>
Explains the source of a type err in a short, human readable way. This is meant to be placed
in parentheses after some larger message. You should also invoke note_and_explain_type_err()
afterwards to present additional details, particularly when it comes to lifetime-related
errors.
Trait Implementations§
source§impl<'tcx> From<TypeError<'tcx>> for NoSolution
impl<'tcx> From<TypeError<'tcx>> for NoSolution
source§fn from(_: TypeError<'tcx>) -> NoSolution
fn from(_: TypeError<'tcx>) -> NoSolution
source§impl<'tcx> PartialEq for TypeError<'tcx>
impl<'tcx> PartialEq for TypeError<'tcx>
source§impl<'tcx> TypeVisitable<TyCtxt<'tcx>> for TypeError<'tcx>
impl<'tcx> TypeVisitable<TyCtxt<'tcx>> for TypeError<'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> Copy for TypeError<'tcx>
impl<'tcx> Eq for TypeError<'tcx>
impl<'tcx> StructuralPartialEq for TypeError<'tcx>
Auto Trait Implementations§
impl<'tcx> DynSend for TypeError<'tcx>
impl<'tcx> DynSync for TypeError<'tcx>
impl<'tcx> Freeze for TypeError<'tcx>
impl<'tcx> !RefUnwindSafe for TypeError<'tcx>
impl<'tcx> Send for TypeError<'tcx>
impl<'tcx> Sync for TypeError<'tcx>
impl<'tcx> Unpin for TypeError<'tcx>
impl<'tcx> !UnwindSafe for TypeError<'tcx>
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<'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
source§impl<T, R> CollectAndApply<T, R> for T
impl<T, R> CollectAndApply<T, R> for T
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
key
and return true
if they are equal.source§impl<T> Filterable for T
impl<T> Filterable for T
source§fn filterable(
self,
filter_name: &'static str
) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
fn filterable( self, filter_name: &'static str ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>
source§impl<T> Instrument for T
impl<T> Instrument for T
source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
source§impl<P> IntoQueryParam<P> for P
impl<P> IntoQueryParam<P> for P
fn into_query_param(self) -> P
source§impl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
source§impl<T> Pointable for T
impl<T> Pointable for T
source§impl<'tcx, T> ToPredicate<'tcx, T> for T
impl<'tcx, T> ToPredicate<'tcx, T> for T
fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> T
source§impl<I, T> TypeVisitableExt<I> for Twhere
I: Interner,
T: TypeVisitable<I>,
impl<I, T> TypeVisitableExt<I> for Twhere
I: Interner,
T: TypeVisitable<I>,
fn has_type_flags(&self, flags: TypeFlags) -> bool
source§fn has_vars_bound_at_or_above(&self, binder: DebruijnIndex) -> bool
fn has_vars_bound_at_or_above(&self, binder: DebruijnIndex) -> bool
true
if self
has any late-bound regions that are either
bound by binder
or bound by some binder outside of binder
.
If binder
is ty::INNERMOST
, this indicates whether
there are any late-bound regions that appear free.fn error_reported(&self) -> Result<(), <I as Interner>::ErrorGuaranteed>
source§fn has_vars_bound_above(&self, binder: DebruijnIndex) -> bool
fn has_vars_bound_above(&self, binder: DebruijnIndex) -> bool
true
if this type has any regions that escape binder
(and
hence are not bound by it).source§fn has_escaping_bound_vars(&self) -> bool
fn has_escaping_bound_vars(&self) -> bool
true
if this type has regions that are not a part of the type.
For example, for<'a> fn(&'a i32)
return false
, while fn(&'a i32)
would return true
. The latter can occur when traversing through the
former. Read morefn has_aliases(&self) -> bool
fn has_inherent_projections(&self) -> bool
fn has_opaque_types(&self) -> bool
fn has_coroutines(&self) -> bool
fn references_error(&self) -> bool
fn has_non_region_param(&self) -> bool
fn has_infer_regions(&self) -> bool
fn has_infer_types(&self) -> bool
fn has_non_region_infer(&self) -> bool
fn has_infer(&self) -> bool
fn has_placeholders(&self) -> bool
fn has_non_region_placeholders(&self) -> bool
fn has_param(&self) -> bool
source§fn has_free_regions(&self) -> bool
fn has_free_regions(&self) -> bool
fn has_erased_regions(&self) -> bool
source§fn has_erasable_regions(&self) -> bool
fn has_erasable_regions(&self) -> bool
source§fn is_global(&self) -> bool
fn is_global(&self) -> bool
source§fn has_bound_regions(&self) -> bool
fn has_bound_regions(&self) -> bool
source§fn has_non_region_bound_vars(&self) -> bool
fn has_non_region_bound_vars(&self) -> bool
source§fn has_bound_vars(&self) -> bool
fn has_bound_vars(&self) -> bool
source§fn still_further_specializable(&self) -> bool
fn still_further_specializable(&self) -> bool
impl
specialization.source§impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
impl<Tcx, T> Value<Tcx> for Twhere
Tcx: DepContext,
default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed ) -> T
source§impl<T> WithSubscriber for T
impl<T> WithSubscriber for T
source§fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
source§fn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
impl<'a, T> Captures<'a> for Twhere
T: ?Sized,
impl<T> ErasedDestructor for Twhere
T: 'static,
impl<T> MaybeSendSync for T
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: 32 bytes
Size for each variant:
Mismatch
: 0 bytesConstnessMismatch
: 2 bytesPolarityMismatch
: 2 bytesUnsafetyMismatch
: 2 bytesAbiMismatch
: 4 bytesMutability
: 0 bytesArgumentMutability
: 15 bytesTupleSize
: 23 bytesFixedArraySize
: 23 bytesArgCount
: 0 bytesFieldMisMatch
: 11 bytesRegionsDoesNotOutlive
: 23 bytesRegionsInsufficientlyPolymorphic
: 23 bytesRegionsPlaceholderMismatch
: 0 bytesSorts
: 23 bytesArgumentSorts
: 31 bytesIntMismatch
: 4 bytesFloatMismatch
: 2 bytesTraits
: 19 bytesVariadicMismatch
: 2 bytesCyclicTy
: 15 bytesCyclicConst
: 15 bytesProjectionMismatched
: 19 bytesExistentialMismatch
: 23 bytesConstMismatch
: 23 bytesIntrinsicCast
: 0 bytesTargetFeatureCast
: 11 bytes