InterpErrorKind in rustc_middle::mir::interpret - Rust
Description: API documentation for the Rust `InterpErrorKind` enum in crate `rustc_middle`.

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## InterpErrorKind

# Enum InterpErrorKind

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    pub enum InterpErrorKind<'tcx> {
        UndefinedBehavior(UndefinedBehaviorInfo<'tcx>),
        InvalidProgram(InvalidProgramInfo<'tcx>),
        Unsupported(UnsupportedOpInfo),
        ResourceExhaustion(ResourceExhaustionInfo),
        MachineStop(Box<dyn MachineStopType>),
    }

## Variants§

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### UndefinedBehavior(UndefinedBehaviorInfo<'tcx>)

The program caused undefined behavior.

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### InvalidProgram(InvalidProgramInfo<'tcx>)

The program was invalid (ill-typed, bad MIR, not sufficiently monomorphized, …).

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### Unsupported(UnsupportedOpInfo)

The program did something the interpreter does not support (some of these might be UB but the interpreter is not sure).

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### ResourceExhaustion(ResourceExhaustionInfo)

The program exhausted the interpreter’s resources (stack/heap too big, execution takes too long, …).

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### MachineStop(Box<dyn MachineStopType>)

Stop execution for a machine-controlled reason. This is never raised by the core engine itself.

## Implementations§

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### impl InterpErrorKind<'_>

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#### pub fn formatted_string(&self) -> bool

Some errors do string formatting even if the error is never printed. To avoid performance issues, there are places where we want to be sure to never raise these formatting errors, so this method lets us detect them and `bug!` on unexpected errors.

## Trait Implementations§

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### impl<'tcx> Debug for InterpErrorKind<'tcx>

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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<'tcx> Display for InterpErrorKind<'tcx>

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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<'tcx> From<InterpErrorKind<'tcx>> for InterpErrorInfo<'tcx>

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#### fn from(kind: InterpErrorKind<'tcx>) -> Self

Converts to this type from the input type.

## Auto Trait Implementations§

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### impl<'tcx> !DynSend for InterpErrorKind<'tcx>

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### impl<'tcx> !DynSync for InterpErrorKind<'tcx>

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### impl<'tcx> Freeze for InterpErrorKind<'tcx>

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### impl<'tcx> !RefUnwindSafe for InterpErrorKind<'tcx>

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### impl<'tcx> Send for InterpErrorKind<'tcx>

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### impl<'tcx> !Sync for InterpErrorKind<'tcx>

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### impl<'tcx> Unpin for InterpErrorKind<'tcx>

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### impl<'tcx> UnsafeUnpin for InterpErrorKind<'tcx>

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### impl<'tcx> !UnwindSafe for InterpErrorKind<'tcx>

## Blanket Implementations§

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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> 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, 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<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<K> IntoQueryKey<K> for K

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#### fn into_query_key(self) -> K

Argument conversion from `Self` to `K`. This should always be a very cheap conversion, e.g. `LocalDefId::to_def_id`.
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### impl<T> MaybeResult<T> for T

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#### type Error = !

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#### fn from(_: Result<T, <T as MaybeResult<T>>::Error>) -> T

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#### fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

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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> ToString for T
where T: Display + ?Sized,

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#### fn to_string(&self) -> String

Converts the given value to a `String`. 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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### impl<T> ErasedDestructor for T
where T: 'static,

## 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: 64 bytes

Size for each variant:

- `UndefinedBehavior`: 64 bytes
- `InvalidProgram`: 40 bytes
- `Unsupported`: 56 bytes
- `ResourceExhaustion`: 9 bytes
- `MachineStop`: 24 bytes