package preface

  1. Overview
  2. Docs
package preface
Legend:
Library
Module
Module type
Parameter
Class
Class type
include Preface_specs.Decidable.WITH_LOSE_AND_CHOOSE
type 'a t

The type held by the Decidable.

val lose : ('a -> Preface_core.Void.t) -> 'a t

Since Void.t is identity for Either.t, lose act as an identity for Decidable.

val choose : ('a -> ('b, 'c) Preface_core.Shims.Either.t) -> 'b t -> 'c t -> 'a t

choose f x y says that if f can handle either x or y it can handle the result of the function.

include Preface_specs.Divisible.WITH_CONTRAMAP_AND_DIVIDE_AND_CONQUER with type 'a t := 'a t
include Preface_specs.Divisible.WITH_DIVIDE_AND_CONQUER with type 'a t := 'a t
val divide : ('a -> 'b * 'c) -> 'b t -> 'c t -> 'a t

The contravariant version of apply from Applicative.

val conquer : 'a t

Provide and empty value.

include Preface_specs.Contravariant.WITH_CONTRAMAP with type 'a t := 'a t
val contramap : ('a -> 'b) -> 'b t -> 'a t

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

OCaml

Innovation. Community. Security.

GitHub Discord Twitter Peertube RSS
About
Changelog Releases Industrial Users Academic Users Why OCaml
Ecosystem
Packages Community Events OCaml Planet Jobs
Resources
Install OCaml Get Started Platform Tools Language Manual Standard Library API Books Exercises Papers OCaml Playground Logo
Policies
Carbon Footprint Governance Privacy Code of Conduct