Enum itertools::EitherOrBoth [−][src]
Value that either holds a single A or B, or both.
Variants
Both values are present.
Only the left value of type A
is present.
Only the right value of type B
is present.
Implementations
impl<A, B> EitherOrBoth<A, B>
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pub fn has_left(&self) -> bool
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If Left
, or Both
, return true, otherwise, return false.
pub fn has_right(&self) -> bool
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If Right
, or Both
, return true, otherwise, return false.
pub fn is_left(&self) -> bool
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If Left, return true otherwise, return false.
Exclusive version of [has_left
].
pub fn is_right(&self) -> bool
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If Right, return true otherwise, return false.
Exclusive version of [has_right
].
pub fn is_both(&self) -> bool
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If Right, return true otherwise, return false.
Equivalent to self.as_ref().both().is_some()
.
pub fn left(self) -> Option<A>
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If Left
, or Both
, return Some
with the left value, otherwise, return None
.
pub fn right(self) -> Option<B>
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If Right
, or Both
, return Some
with the right value, otherwise, return None
.
pub fn both(self) -> Option<(A, B)>
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If Both, return Some
tuple containing left and right.
pub fn as_ref(&self) -> EitherOrBoth<&A, &B>
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Converts from &EitherOrBoth<A, B>
to EitherOrBoth<&A, &B>
.
pub fn as_mut(&mut self) -> EitherOrBoth<&mut A, &mut B>
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Converts from &mut EitherOrBoth<A, B>
to EitherOrBoth<&mut A, &mut B>
.
pub fn flip(self) -> EitherOrBoth<B, A>
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Convert EitherOrBoth<A, B>
to EitherOrBoth<B, A>
.
pub fn map_left<F, M>(self, f: F) -> EitherOrBoth<M, B> where
F: FnOnce(A) -> M,
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F: FnOnce(A) -> M,
Apply the function f
on the value a
in Left(a)
or Both(a, b)
variants. If it is
present rewrapping the result in self
’s original variant.
pub fn map_right<F, M>(self, f: F) -> EitherOrBoth<A, M> where
F: FnOnce(B) -> M,
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F: FnOnce(B) -> M,
Apply the function f
on the value b
in Right(b)
or Both(a, b)
variants.
If it is present rewrapping the result in self
’s original variant.
pub fn map_any<F, L, G, R>(self, f: F, g: G) -> EitherOrBoth<L, R> where
F: FnOnce(A) -> L,
G: FnOnce(B) -> R,
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F: FnOnce(A) -> L,
G: FnOnce(B) -> R,
Apply the functions f
and g
on the value a
and b
respectively;
found in Left(a)
, Right(b)
, or Both(a, b)
variants.
The Result is rewrapped self
’s original variant.
pub fn left_and_then<F, L>(self, f: F) -> EitherOrBoth<L, B> where
F: FnOnce(A) -> EitherOrBoth<L, B>,
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F: FnOnce(A) -> EitherOrBoth<L, B>,
Apply the function f
on the value b
in Right(b)
or Both(a, _)
variants if it is
present.
pub fn right_and_then<F, R>(self, f: F) -> EitherOrBoth<A, R> where
F: FnOnce(B) -> EitherOrBoth<A, R>,
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F: FnOnce(B) -> EitherOrBoth<A, R>,
Apply the function f
on the value a
in Left(a)
or Both(a, _)
variants if it is present.
impl<T> EitherOrBoth<T, T>
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pub fn reduce<F>(self, f: F) -> T where
F: FnOnce(T, T) -> T,
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F: FnOnce(T, T) -> T,
Return either value of left, right, or the product of f
applied where Both
are present.
Trait Implementations
impl<A: Clone, B: Clone> Clone for EitherOrBoth<A, B>
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fn clone(&self) -> EitherOrBoth<A, B>
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pub fn clone_from(&mut self, source: &Self)
1.0.0[src]
impl<A: Debug, B: Debug> Debug for EitherOrBoth<A, B>
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impl<A: Eq, B: Eq> Eq for EitherOrBoth<A, B>
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impl<A: Hash, B: Hash> Hash for EitherOrBoth<A, B>
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fn hash<__H: Hasher>(&self, state: &mut __H)
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pub fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
impl<A, B> Into<Option<Either<A, B>>> for EitherOrBoth<A, B>
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impl<A: PartialEq, B: PartialEq> PartialEq<EitherOrBoth<A, B>> for EitherOrBoth<A, B>
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fn eq(&self, other: &EitherOrBoth<A, B>) -> bool
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fn ne(&self, other: &EitherOrBoth<A, B>) -> bool
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impl<A, B> StructuralEq for EitherOrBoth<A, B>
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impl<A, B> StructuralPartialEq for EitherOrBoth<A, B>
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Auto Trait Implementations
impl<A, B> RefUnwindSafe for EitherOrBoth<A, B> where
A: RefUnwindSafe,
B: RefUnwindSafe,
A: RefUnwindSafe,
B: RefUnwindSafe,
impl<A, B> Send for EitherOrBoth<A, B> where
A: Send,
B: Send,
A: Send,
B: Send,
impl<A, B> Sync for EitherOrBoth<A, B> where
A: Sync,
B: Sync,
A: Sync,
B: Sync,
impl<A, B> Unpin for EitherOrBoth<A, B> where
A: Unpin,
B: Unpin,
A: Unpin,
B: Unpin,
impl<A, B> UnwindSafe for EitherOrBoth<A, B> where
A: UnwindSafe,
B: UnwindSafe,
A: UnwindSafe,
B: UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,