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SumTraversal

oxilean_std::sum::types

Struct SumTraversal 

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pub struct SumTraversal<A, B> {
    pub description: String,
    /* private fields */
}
Expand description

A traversal of a Sum type: applies an effectful function over the right side.

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§description: String

Description of the traversal.

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impl<A, B> SumTraversal<A, B>

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pub fn new(description: impl Into<String>) -> Self

Create a new SumTraversal.

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pub fn traverse_option<C>( &self, s: Coproduct<A, B>, f: impl FnOnce(B) -> Option<C>, ) -> Option<Coproduct<A, C>>

Traverse: apply f to the right side, preserving left.

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impl<A, B> Freeze for SumTraversal<A, B>

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impl<A, B> RefUnwindSafe for SumTraversal<A, B>
where A: RefUnwindSafe, B: RefUnwindSafe,

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impl<A, B> Send for SumTraversal<A, B>
where A: Send, B: Send,

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impl<A, B> Sync for SumTraversal<A, B>
where A: Sync, B: Sync,

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impl<A, B> Unpin for SumTraversal<A, B>
where A: Unpin, B: Unpin,

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impl<A, B> UnsafeUnpin for SumTraversal<A, B>

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impl<A, B> UnwindSafe for SumTraversal<A, B>
where A: UnwindSafe, B: UnwindSafe,

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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.