Struct show_notes::e031::unions::Either

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pub struct Either<L: Copy, R: Copy> {
    pub tag: Tag,
    pub value: EitherValue<L, R>,
}
Expand description

Uses an enum and a union to get close to a regular Rust enum.

Roughly, because the compiler won’t check you for exhaustiveness, or even make sure you’re using the tag and value pair the way you should!

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§tag: Tag§value: EitherValue<L, R>

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impl<L, R> RefUnwindSafe for Either<L, R>where L: RefUnwindSafe, R: RefUnwindSafe,

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impl<L, R> Send for Either<L, R>where L: Send, R: Send,

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impl<L, R> Sync for Either<L, R>where L: Sync, R: Sync,

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impl<L, R> Unpin for Either<L, R>where L: Unpin, R: Unpin,

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impl<L, R> UnwindSafe for Either<L, R>where L: UnwindSafe, R: 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.