pub struct UnwindingContext { /* private fields */ }
Expand description

This is the context/state that is used during unwinding and passed around to the callback functions in the various unwinding stages, such as in _Unwind_Resume().

Because those callbacks follow an extern “C” ABI, this structure is passed as a pointer rather than directly by value or by reference. Thus, it must be manually freed when unwinding is finished (or if it fails in the middle) in order to avoid leaking memory, e.g., not dropping reference counts.

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impl From<UnwindingContext> for (StackFrameIter, KillReason, TaskRef)

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fn from(val: UnwindingContext) -> Self

Converts to this type from the input type.

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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

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

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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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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.