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SumChain

oxilean_std::sum::types

Struct SumChain 

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pub struct SumChain<A, B> { /* private fields */ }
Expand description

A chain of operations on a coproduct that short-circuits on the left.

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impl<A, B> SumChain<A, B>

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pub fn new(c: Coproduct<A, B>) -> Self

Wrap a coproduct.

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pub fn map<C>(self, f: impl FnOnce(B) -> C) -> SumChain<A, C>

Map the right side, short-circuiting on the left.

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pub fn flat_map<C>(self, f: impl FnOnce(B) -> Coproduct<A, C>) -> SumChain<A, C>

FlatMap the right side, short-circuiting on the left.

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pub fn into_inner(self) -> Coproduct<A, B>

Unwrap the chain.

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pub fn is_ok(&self) -> bool

Whether the chain is in the success (right) state.

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pub fn is_err(&self) -> bool

Whether the chain is in the error (left) state.

Auto Trait Implementations§

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impl<A, B> Freeze for SumChain<A, B>
where A: Freeze, B: Freeze,

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

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

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

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

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impl<A, B> UnsafeUnpin for SumChain<A, B>
where A: UnsafeUnpin, B: UnsafeUnpin,

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

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.