pyo3_error

Struct DowncastToPyErr

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pub struct DowncastToPyErr;
Expand description

Try to map a std::error::Error via a specific error type T to a PyErr by downcasting when used as MapErrorToPyErr;

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impl MapErrorToPyErr for DowncastToPyErr

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fn try_map<T: Error + 'static>( _py: Python<'_>, err: Box<dyn Error + 'static>, map: impl FnOnce(Box<T>) -> PyErr, ) -> Result<PyErr, Box<dyn Error + 'static>>

Try to map from a boxed err via the specific error type T or wrapped errors such as MyError<E> to a PyErr, or return the err. Read more
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fn try_map_send_sync<T: Error + 'static>( _py: Python<'_>, err: Box<dyn Error + Send + Sync + 'static>, map: impl FnOnce(Box<T>) -> PyErr, ) -> Result<PyErr, Box<dyn Error + Send + Sync + 'static>>

Try to map from a boxed err via the specific error type T or wrapped errors such as MyError<E> to a PyErr, or return the err. Read more
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fn try_map_ref<T: Error + 'static>( _py: Python<'_>, err: &(dyn Error + 'static), map: impl FnOnce(&T) -> PyErr, ) -> Option<PyErr>

Try to map from an err reference via the specific error type T or wrapped errors such as MyError<E> to a PyErr, or return None. Read more

Auto Trait Implementations§

Blanket Implementations§

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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> 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 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, 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<T> Ungil for T
where T: Send,