pub struct DatumConversionFailure<D> {
    pub original: D,
    pub error: TypeMismatch,
}
Expand description

Error type when using TryFrom/TryInto to convert a Machine::Datum into a particular type

See also types module.

Since this type contains the original Datum, it might not be Send + Sync + 'static. DatumConversionFailure also does not implement std::error::Error. You can convert this error into TypeMismatch (or extract the error field), which implements std::error::Error and is Send + Sync + 'static.

For convenience, values of this type can also be directly converted into a MachineError.

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§original: D

Original datum that could not be converted

§error: TypeMismatch

Error description

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impl<D> DatumConversionFailure<D>

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pub fn new(original: D, error: TypeMismatch) -> Self

Create new DatumConversionFailure with given TypeMismatch error

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pub fn with_msg(original: D, message: String) -> Self

Create new DatumConversionFailure with owned String error message

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pub fn with_static_msg(original: D, message: &'static str) -> Self

Create new DatumConversionFailure with static error message

Trait Implementations§

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impl<D> Debug for DatumConversionFailure<D>

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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<D> From<DatumConversionFailure<D>> for MachineError

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fn from(failure: DatumConversionFailure<D>) -> Self

Converts to this type from the input type.
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impl<D> From<DatumConversionFailure<D>> for TypeMismatch

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fn from(failure: DatumConversionFailure<D>) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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impl<D> RefUnwindSafe for DatumConversionFailure<D>where D: RefUnwindSafe,

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impl<D> Send for DatumConversionFailure<D>where D: Send,

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impl<D> Sync for DatumConversionFailure<D>where D: Sync,

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impl<D> Unpin for DatumConversionFailure<D>where D: Unpin,

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impl<D> UnwindSafe for DatumConversionFailure<D>where D: UnwindSafe,

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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.