ResultUnboundWitness

deep_causality_haft

Struct ResultUnboundWitness 

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pub struct ResultUnboundWitness;
Expand description

ResultUnboundWitness is a zero-sized type that acts as a witness for the Result<A, B> type constructor where both parameters are unbound.

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impl Bifunctor<ResultUnboundWitness> for ResultUnboundWitness

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fn bimap<A, B, C, D, F1, F2>(fab: Result<A, B>, f1: F1, f2: F2) -> Result<C, D>
where F1: FnMut(A) -> C, F2: FnMut(B) -> D,

Maps both types simultaneously. Read more
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fn first<A, B, C, F1>(fab: F::Type<A, B>, f1: F1) -> F::Type<C, B>
where F1: FnMut(A) -> C,

Maps only the first type parameter. Equivalent to bimap(f, id).
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fn second<A, B, D, F2>(fab: F::Type<A, B>, f2: F2) -> F::Type<A, D>
where F2: FnMut(B) -> D,

Maps only the second type parameter. Equivalent to bimap(id, g).
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impl HKT2Unbound for ResultUnboundWitness

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type Type<A, B> = Result<A, B>

The Generic Associated Type representing F<A, B>

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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.