frunk_enum_core

Enum HEither

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pub enum HEither<H, T> {
    Head(H),
    Tail(T),
}
Expand description

A building block for a generic enum. The “additive-type” mirror for frunk::HCons. This is normally used as:

ⓘ
HEither<A,
        HEither<B,
                HEither<C,
                        Void>>>

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Head(H)

The first variant.

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Tail(T)

The second/other variant.

Trait Implementations§

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impl<TargetHead, TargetTail, SourceHead, SourceTail, HeadIndices, TailIndices, Key> Transmogrifier<HEither<Variant<Key, TargetHead>, TargetTail>, HCons<HeadIndices, TailIndices>> for HEither<Variant<Key, SourceHead>, SourceTail>
where SourceHead: Transmogrifier<TargetHead, HeadIndices>, SourceTail: Transmogrifier<TargetTail, TailIndices>,

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fn transmogrify(self) -> HEither<Variant<Key, TargetHead>, TargetTail>

Consume this current object and return an object of the Target type. Read more

Auto Trait Implementations§

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impl<H, T> Freeze for HEither<H, T>
where H: Freeze, T: Freeze,

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impl<H, T> RefUnwindSafe for HEither<H, T>
where H: RefUnwindSafe, T: RefUnwindSafe,

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impl<H, T> Send for HEither<H, T>
where H: Send, T: Send,

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impl<H, T> Sync for HEither<H, T>
where H: Sync, T: Sync,

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impl<H, T> Unpin for HEither<H, T>
where H: Unpin, T: Unpin,

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impl<H, T> UnwindSafe for HEither<H, T>
where H: UnwindSafe, T: 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<Choices> CoproductSubsetter<CNil, HNil> for Choices

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type Remainder = Choices

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fn subset( self, ) -> Result<CNil, <Choices as CoproductSubsetter<CNil, HNil>>::Remainder>

Extract a subset of the possible types in a coproduct (or get the remaining possibilities) 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, I> LiftInto<U, I> for T
where U: LiftFrom<T, I>,

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fn lift_into(self) -> U

Performs the indexed conversion.
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impl<Source> Sculptor<HNil, HNil> for Source

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type Remainder = Source

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fn sculpt(self) -> (HNil, <Source as Sculptor<HNil, HNil>>::Remainder)

Consumes the current HList and returns an HList with the requested shape. Read more
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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.