Parameter Via.Operation

type 'a t = 'a Core.t

The type held by the Selective.

inline

include Preface_specs.Indexed_selective.OPERATION with type ('a, _) t := 'a t
val lift : ('a -> 'b) -> 'a t -> 'b t

Mapping over t from 'a to 'b.

val lift3 : ('a -> 'b -> 'c -> 'd) -> 'a t -> 'b t -> 'c t -> 'd t

Lift a ternary function that acts on arbitrary values into a function that acts t values.

val replace : 'a -> 'b t -> 'a t

Create a new t, replacing all values of the given functor by given a value of 'a.

val void : 'a t -> unit t

Create a new t, replacing all values in the given functor by unit.

val if_ : bool t -> 'a t -> 'a t -> 'a t

Same of branch but using a Boolean as disjunction.

val bind_bool : bool t -> (bool -> 'a t) -> 'a t

Monad bind specialized for Boolean.

val when_ : bool t -> unit t -> unit t

Conditionally perform an effect.

val exists : ('a -> bool t) -> 'a list -> bool t

Selective version of List.exists.

val for_all : ('a -> bool t) -> 'a list -> bool t

Selective version of List.for_all.

val or_ : bool t -> bool t -> bool t

Or combinator.

val and_ : bool t -> bool t -> bool t

And combinator.

val while_ : bool t -> unit t

Keep checking an effectful condition while it holds.