pub enum UnsupportedOpInfo {
    Unsupported(String),
    OverwritePartialPointer(Pointer<AllocId>),
    ReadPartialPointer(Pointer<AllocId>),
    ReadPointerAsInt(Option<(AllocId, BadBytesAccess)>),
    ThreadLocalStatic(DefId),
    ReadExternStatic(DefId),
}
Expand description

Error information for when the program did something that might (or might not) be correct to do according to the Rust spec, but due to limitations in the interpreter, the operation could not be carried out. These limitations can differ between CTFE and the Miri engine, e.g., CTFE does not support dereferencing pointers at integral addresses.

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Unsupported(String)

Free-form case. Only for errors that are never caught!

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OverwritePartialPointer(Pointer<AllocId>)

Overwriting parts of a pointer; without knowing absolute addresses, the resulting state cannot be represented by the CTFE interpreter.

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ReadPartialPointer(Pointer<AllocId>)

Attempting to read or copy parts of a pointer to somewhere else; without knowing absolute addresses, the resulting state cannot be represented by the CTFE interpreter.

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ReadPointerAsInt(Option<(AllocId, BadBytesAccess)>)

Encountered a pointer where we needed an integer.

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ThreadLocalStatic(DefId)

Accessing thread local statics

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ReadExternStatic(DefId)

Accessing an unsupported extern static.

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for Twhere 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, U> TryFrom<U> for Twhere 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 Twhere 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.