OneOrPair

Enum OneOrPair 

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pub enum OneOrPair<T> {
    One(T),
    Pair((T, T)),
}
Expand description

Either a single value or a pair of values.

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One(T)

A single value variant.

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Pair((T, T))

A pair of values variant.

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impl<T> OneOrPair<T>

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pub fn into_single(self) -> Result<T, (T, T)>

Convert into a single value, or return the pair wrapped in Err.

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An inner pair of values if the value is a Self::Pair.

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pub fn into_pair(self) -> Result<(T, T), T>

Convert into a pair of values, or return the single value wrapped in Err.

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An inner single value if the value is a Self::One.

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impl<T: Clone> Clone for OneOrPair<T>

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fn clone(&self) -> OneOrPair<T>

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T: Debug> Debug for OneOrPair<T>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<T> From<(T, T)> for OneOrPair<T>

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fn from(value: (T, T)) -> Self

Converts to this type from the input type.
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impl<T> From<T> for OneOrPair<T>

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fn from(value: T) -> Self

Converts to this type from the input type.
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impl<T: Hash> Hash for OneOrPair<T>

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<T: PartialEq> PartialEq for OneOrPair<T>

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fn eq(&self, other: &OneOrPair<T>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<T> TryInto<(T, T)> for OneOrPair<T>

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type Error = T

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<(T, T), T>

Performs the conversion.
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impl<T: Copy> Copy for OneOrPair<T>

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impl<T: Eq> Eq for OneOrPair<T>

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impl<T> StructuralPartialEq for OneOrPair<T>

Auto Trait Implementations§

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impl<T> Freeze for OneOrPair<T>
where T: Freeze,

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impl<T> RefUnwindSafe for OneOrPair<T>
where T: RefUnwindSafe,

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impl<T> Send for OneOrPair<T>
where T: Send,

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impl<T> Sync for OneOrPair<T>
where T: Sync,

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impl<T> Unpin for OneOrPair<T>
where T: Unpin,

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impl<T> UnwindSafe for OneOrPair<T>
where T: 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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<!> for T

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fn from(t: !) -> T

Converts to this type from the input type.
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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.