preface

An opinionated library for function programming (à La Haskell)
IN THIS PACKAGE
Module Preface_make . Alt . Via

Parameters

module Operation : Preface_specs.Alt.OPERATION with type 'a t = 'a Core.t
module Infix : Preface_specs.Alt.INFIX with type 'a t = 'a Operation.t

Signature

Type

type 'a t = 'a Infix.t

The type held by the Alt.

Functions

val combine : 'a t -> 'a t -> 'a t

Combine two values of 'a t into one.

val map : ( 'a -> 'b ) -> 'a t -> 'b t

Mapping over from 'a to 'b over 'a t to 'b t.

val times_nel : int -> 'a t -> 'a t option

times_nel n x apply combine on x n times. If n is lower than 1 the function will returns None.

val reduce_nel : 'a t Preface_core.Nonempty_list.t -> 'a t

Reduce a Nonempty_list.t using combine.

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

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

val void : 'a t -> unit t

Create a new unit t, replacing all values in the 'a t by unit.

Infix operators

module Infix : Preface_specs.Alt.INFIX with type 'a t = 'a t
val (<|>) : 'a t -> 'a t -> 'a t

Infix version of CORE.combine

val (<$>) : ( 'a -> 'b ) -> 'a t -> 'b t
val (<&>) : 'a t -> ( 'a -> 'b ) -> 'b t

Flipped and infix version of Preface_specs.Functor.CORE.map.

val (<$) : 'a -> 'b t -> 'a t
val ($>) : 'a t -> 'b -> 'b t

Flipped and infix version of Preface_specs.Functor.OPERATION.replace.