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TypeError

rustc_type_ir::error

Enum TypeError 

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pub enum TypeError<I: Interner> {

Show 24 variants    Mismatch,
    PolarityMismatch(ExpectedFound<PredicatePolarity>),
    SafetyMismatch(ExpectedFound<I::Safety>),
    AbiMismatch(ExpectedFound<ExternAbi>),
    Mutability,
    ArgumentMutability(usize),
    TupleSize(ExpectedFound<usize>),
    ArraySize(ExpectedFound<I::Const>),
    ArgCount,
    RegionsDoesNotOutlive(I::Region, I::Region),
    RegionsInsufficientlyPolymorphic(BoundRegion<I>, I::Region),
    RegionsPlaceholderMismatch,
    Sorts(ExpectedFound<I::Ty>),
    ArgumentSorts(ExpectedFound<I::Ty>, usize),
    Traits(ExpectedFound<I::TraitId>),
    VariadicMismatch(ExpectedFound<bool>),
    CyclicTy(I::Ty),
    CyclicConst(I::Const),
    ProjectionMismatched(ExpectedFound<AliasTermKind<I>>),
    ExistentialMismatch(ExpectedFound<I::BoundExistentialPredicates>),
    ConstMismatch(ExpectedFound<I::Const>),
    IntrinsicCast,
    ForceInlineCast,
    TargetFeatureCast(I::DefId),

}

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Mismatch

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PolarityMismatch(ExpectedFound<PredicatePolarity>)

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SafetyMismatch(ExpectedFound<I::Safety>)

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AbiMismatch(ExpectedFound<ExternAbi>)

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Mutability

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ArgumentMutability(usize)

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TupleSize(ExpectedFound<usize>)

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ArraySize(ExpectedFound<I::Const>)

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ArgCount

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RegionsDoesNotOutlive(I::Region, I::Region)

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RegionsInsufficientlyPolymorphic(BoundRegion<I>, I::Region)

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RegionsPlaceholderMismatch

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Sorts(ExpectedFound<I::Ty>)

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ArgumentSorts(ExpectedFound<I::Ty>, usize)

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Traits(ExpectedFound<I::TraitId>)

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VariadicMismatch(ExpectedFound<bool>)

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CyclicTy(I::Ty)

Instantiating a type variable with the given type would have created a cycle (because it appears somewhere within that type).

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CyclicConst(I::Const)

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ProjectionMismatched(ExpectedFound<AliasTermKind<I>>)

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ExistentialMismatch(ExpectedFound<I::BoundExistentialPredicates>)

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ConstMismatch(ExpectedFound<I::Const>)

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IntrinsicCast

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ForceInlineCast

#[rustc_force_inline] functions must be inlined and must not be codegened independently, so casting to a function pointer must be prohibited.

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TargetFeatureCast(I::DefId)

Safe #[target_feature] functions are not assignable to safe function pointers.

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impl<I> Clone for TypeError<I>
where I: Interner,

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<I> Copy for TypeError<I>
where I: Interner,

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impl<I> Debug for TypeError<I>
where I: Interner,

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fn fmt(&self, __f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<I: Interner> Eq for TypeError<I>

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impl<I: Interner> From<TypeError<I>> for NoSolution

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fn from(_: TypeError<I>) -> NoSolution

Converts to this type from the input type.
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impl<I> PartialEq for TypeError<I>
where I: Interner,

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fn eq(&self, __other: &Self) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<I> TypeVisitable<I> for TypeError<I>
where I: Interner, ExpectedFound<I::Const>: TypeVisitable<I>, I::Region: TypeVisitable<I>, BoundRegion<I>: TypeVisitable<I>, ExpectedFound<I::Ty>: TypeVisitable<I>, ExpectedFound<I::TraitId>: TypeVisitable<I>, I::Ty: TypeVisitable<I>, I::Const: TypeVisitable<I>, ExpectedFound<AliasTermKind<I>>: TypeVisitable<I>, ExpectedFound<I::BoundExistentialPredicates>: TypeVisitable<I>, I::DefId: TypeVisitable<I>,

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fn visit_with<__V: TypeVisitor<I>>(&self, __visitor: &mut __V) -> __V::Result

The entry point for visiting. To visit a value t with a visitor v call: t.visit_with(v). Read more

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impl<I> DynSend for TypeError<I>
where <I as Interner>::Region: DynSend, <I as Interner>::Ty: DynSend, <I as Interner>::Const: DynSend, <I as Interner>::DefId: DynSend, <I as Interner>::Safety: DynSend, <I as Interner>::TraitId: DynSend, <I as Interner>::BoundExistentialPredicates: DynSend, <I as Interner>::Symbol: DynSend, <I as Interner>::TraitAssocTyId: DynSend, <I as Interner>::InherentAssocTyId: DynSend, <I as Interner>::OpaqueTyId: DynSend, <I as Interner>::FreeTyAliasId: DynSend, <I as Interner>::UnevaluatedConstId: DynSend, <I as Interner>::TraitAssocConstId: DynSend, <I as Interner>::FreeConstAliasId: DynSend, <I as Interner>::InherentAssocConstId: DynSend,

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impl<I> DynSync for TypeError<I>
where <I as Interner>::Region: DynSync, <I as Interner>::Ty: DynSync, <I as Interner>::Const: DynSync, <I as Interner>::DefId: DynSync, <I as Interner>::Safety: DynSync, <I as Interner>::TraitId: DynSync, <I as Interner>::BoundExistentialPredicates: DynSync, <I as Interner>::Symbol: DynSync, <I as Interner>::TraitAssocTyId: DynSync, <I as Interner>::InherentAssocTyId: DynSync, <I as Interner>::OpaqueTyId: DynSync, <I as Interner>::FreeTyAliasId: DynSync, <I as Interner>::UnevaluatedConstId: DynSync, <I as Interner>::TraitAssocConstId: DynSync, <I as Interner>::FreeConstAliasId: DynSync, <I as Interner>::InherentAssocConstId: DynSync,

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impl<I> Freeze for TypeError<I>
where <I as Interner>::Region: Freeze, <I as Interner>::Ty: Freeze, <I as Interner>::Const: Freeze, <I as Interner>::DefId: Freeze, <I as Interner>::Safety: Freeze, <I as Interner>::TraitId: Freeze, <I as Interner>::BoundExistentialPredicates: Freeze, <I as Interner>::Symbol: Freeze, <I as Interner>::TraitAssocTyId: Freeze, <I as Interner>::InherentAssocTyId: Freeze, <I as Interner>::OpaqueTyId: Freeze, <I as Interner>::FreeTyAliasId: Freeze, <I as Interner>::UnevaluatedConstId: Freeze, <I as Interner>::TraitAssocConstId: Freeze, <I as Interner>::FreeConstAliasId: Freeze, <I as Interner>::InherentAssocConstId: Freeze,

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impl<I> RefUnwindSafe for TypeError<I>
where <I as Interner>::Region: RefUnwindSafe, <I as Interner>::Ty: RefUnwindSafe, <I as Interner>::Const: RefUnwindSafe, <I as Interner>::DefId: RefUnwindSafe, <I as Interner>::Safety: RefUnwindSafe, <I as Interner>::TraitId: RefUnwindSafe, <I as Interner>::BoundExistentialPredicates: RefUnwindSafe, <I as Interner>::Symbol: RefUnwindSafe, <I as Interner>::TraitAssocTyId: RefUnwindSafe, <I as Interner>::InherentAssocTyId: RefUnwindSafe, <I as Interner>::OpaqueTyId: RefUnwindSafe, <I as Interner>::FreeTyAliasId: RefUnwindSafe, <I as Interner>::UnevaluatedConstId: RefUnwindSafe, <I as Interner>::TraitAssocConstId: RefUnwindSafe, <I as Interner>::FreeConstAliasId: RefUnwindSafe, <I as Interner>::InherentAssocConstId: RefUnwindSafe,

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impl<I> Send for TypeError<I>
where <I as Interner>::Region: Send, <I as Interner>::Ty: Send, <I as Interner>::Const: Send, <I as Interner>::DefId: Send, <I as Interner>::Safety: Send, <I as Interner>::TraitId: Send, <I as Interner>::BoundExistentialPredicates: Send, <I as Interner>::Symbol: Send, <I as Interner>::TraitAssocTyId: Send, <I as Interner>::InherentAssocTyId: Send, <I as Interner>::OpaqueTyId: Send, <I as Interner>::FreeTyAliasId: Send, <I as Interner>::UnevaluatedConstId: Send, <I as Interner>::TraitAssocConstId: Send, <I as Interner>::FreeConstAliasId: Send, <I as Interner>::InherentAssocConstId: Send,

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impl<I> Sync for TypeError<I>
where <I as Interner>::Region: Sync, <I as Interner>::Ty: Sync, <I as Interner>::Const: Sync, <I as Interner>::DefId: Sync, <I as Interner>::Safety: Sync, <I as Interner>::TraitId: Sync, <I as Interner>::BoundExistentialPredicates: Sync, <I as Interner>::Symbol: Sync, <I as Interner>::TraitAssocTyId: Sync, <I as Interner>::InherentAssocTyId: Sync, <I as Interner>::OpaqueTyId: Sync, <I as Interner>::FreeTyAliasId: Sync, <I as Interner>::UnevaluatedConstId: Sync, <I as Interner>::TraitAssocConstId: Sync, <I as Interner>::FreeConstAliasId: Sync, <I as Interner>::InherentAssocConstId: Sync,

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impl<I> Unpin for TypeError<I>
where <I as Interner>::Region: Unpin, <I as Interner>::Ty: Unpin, <I as Interner>::Const: Unpin, <I as Interner>::DefId: Unpin, <I as Interner>::Safety: Unpin, <I as Interner>::TraitId: Unpin, <I as Interner>::BoundExistentialPredicates: Unpin, <I as Interner>::Symbol: Unpin, <I as Interner>::TraitAssocTyId: Unpin, <I as Interner>::InherentAssocTyId: Unpin, <I as Interner>::OpaqueTyId: Unpin, <I as Interner>::FreeTyAliasId: Unpin, <I as Interner>::UnevaluatedConstId: Unpin, <I as Interner>::TraitAssocConstId: Unpin, <I as Interner>::FreeConstAliasId: Unpin, <I as Interner>::InherentAssocConstId: Unpin,

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impl<I> UnsafeUnpin for TypeError<I>
where <I as Interner>::Region: UnsafeUnpin, <I as Interner>::Ty: UnsafeUnpin, <I as Interner>::Const: UnsafeUnpin, <I as Interner>::DefId: UnsafeUnpin, <I as Interner>::Safety: UnsafeUnpin, <I as Interner>::TraitId: UnsafeUnpin, <I as Interner>::BoundExistentialPredicates: UnsafeUnpin, <I as Interner>::Symbol: UnsafeUnpin, <I as Interner>::TraitAssocTyId: UnsafeUnpin, <I as Interner>::InherentAssocTyId: UnsafeUnpin, <I as Interner>::OpaqueTyId: UnsafeUnpin, <I as Interner>::FreeTyAliasId: UnsafeUnpin, <I as Interner>::UnevaluatedConstId: UnsafeUnpin, <I as Interner>::TraitAssocConstId: UnsafeUnpin, <I as Interner>::FreeConstAliasId: UnsafeUnpin, <I as Interner>::InherentAssocConstId: UnsafeUnpin,

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impl<I> UnwindSafe for TypeError<I>
where <I as Interner>::Region: UnwindSafe, <I as Interner>::Ty: UnwindSafe, <I as Interner>::Const: UnwindSafe, <I as Interner>::DefId: UnwindSafe, <I as Interner>::Safety: UnwindSafe, <I as Interner>::TraitId: UnwindSafe, <I as Interner>::BoundExistentialPredicates: UnwindSafe, <I as Interner>::Symbol: UnwindSafe, <I as Interner>::TraitAssocTyId: UnwindSafe, <I as Interner>::InherentAssocTyId: UnwindSafe, <I as Interner>::OpaqueTyId: UnwindSafe, <I as Interner>::FreeTyAliasId: UnwindSafe, <I as Interner>::UnevaluatedConstId: UnwindSafe, <I as Interner>::TraitAssocConstId: UnwindSafe, <I as Interner>::FreeConstAliasId: UnwindSafe, <I as Interner>::InherentAssocConstId: UnwindSafe,

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impl<T> Aligned for T

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const ALIGN: Alignment

Alignment of Self.
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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> AnyEq for T
where T: Any + PartialEq,

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fn equals(&self, other: &(dyn Any + 'static)) -> bool

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fn as_any(&self) -> &(dyn Any + 'static)

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T, R> CollectAndApply<T, R> for T

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fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

Equivalent to f(&iter.collect::<Vec<_>>()).

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type Output = R

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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> ErasedDestructor for T
where T: 'static,

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<I, T, U> Upcast<I, U> for T
where U: UpcastFrom<I, T>,

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fn upcast(self, interner: I) -> U

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impl<I, T> UpcastFrom<I, T> for T

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fn upcast_from(from: T, _tcx: I) -> T

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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

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Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.