Enum itertools::EitherOrBoth [−][src]
pub enum EitherOrBoth<A, B> {
Both(A, B),
Left(A),
Right(B),
}
Expand description
Value that either holds a single A or B, or both.
Variants
Both(A, B)
Both values are present.
Left(A)
Only the left value of type A
is present.
Right(B)
Only the right value of type B
is present.
Implementations
If Left, return true otherwise, return false.
Exclusive version of has_left
.
If Right, return true otherwise, return false.
Exclusive version of has_right
.
If Right, return true otherwise, return false.
Equivalent to self.as_ref().both().is_some()
.
If Left
, or Both
, return Some
with the left value, otherwise, return None
.
If Right
, or Both
, return Some
with the right value, otherwise, return None
.
Converts from &EitherOrBoth<A, B>
to EitherOrBoth<&A, &B>
.
Converts from &mut EitherOrBoth<A, B>
to EitherOrBoth<&mut A, &mut B>
.
Convert EitherOrBoth<A, B>
to EitherOrBoth<B, A>
.
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.
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,
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,
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>,
pub fn left_and_then<F, L>(self, f: F) -> EitherOrBoth<L, B> where
F: FnOnce(A) -> EitherOrBoth<L, B>,
Apply the function f
on the value a
in Left(a)
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>,
pub fn right_and_then<F, R>(self, f: F) -> EitherOrBoth<A, R> where
F: FnOnce(B) -> EitherOrBoth<A, R>,
Apply the function f
on the value b
in Right(b)
or Both(_, b)
variants if it is present.
Trait Implementations
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
This method tests for !=
.
Auto Trait Implementations
impl<A, B> RefUnwindSafe for EitherOrBoth<A, B> where
A: RefUnwindSafe,
B: RefUnwindSafe,
impl<A, B> Send for EitherOrBoth<A, B> where
A: Send,
B: Send,
impl<A, B> Sync for EitherOrBoth<A, B> where
A: Sync,
B: Sync,
impl<A, B> Unpin for EitherOrBoth<A, B> where
A: Unpin,
B: Unpin,
impl<A, B> UnwindSafe for EitherOrBoth<A, B> where
A: UnwindSafe,
B: UnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more