Over_functor_via_select.Req
type ('a, 'index) t = ('a, 'index) Functor.t
The type held by the Indexed Selective.
Indexed Selective
val select : (('a, 'b) Stdlib.Either.t, 'index) t -> ('a -> 'b, 'index) t -> ('b, 'index) t
select e f apply f if e is Left. It allow to skip effect using Right.
select e f
f
e
Left
Right
val pure : 'a -> ('a, 'index) t
Create a new t.
t