Function gluon_base::merge::merge
source · pub fn merge<F, A, B, R>(
a_original: &A,
a: Option<A::Owned>,
b_original: &B,
b: Option<B::Owned>,
f: F
) -> Option<R>where
A: ToOwned + ?Sized,
B: ToOwned + ?Sized,
F: FnOnce(A::Owned, B::Owned) -> R,
Expand description
Merges two values using f
if either or both them is Some(..)
.
If both are None
, None
is returned.