package ppx_repr

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in-package search v0.2.0

PPX deriver for type representations

Install

sha256=90225eeb444ad52be83cebb8d80196a9ba2cc5f3da066390c17dadd361db7339

sha512=15396ed0599acad3be7319574d0492ed8dd4aa2b9669acfc20b3acf98a186cfceabdd186ef88bd994f409fcb885bfbb2d086330092777a7da93f282e4a02b159

Computations that read values from a shared environment.

type ('a, 'p) t

val return : 'a -> ('a, 'p) t

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

val bind : ('a -> ('b, 'p) t) -> ('a, 'p) t -> ('b, 'p) t

val sequence : ('a, 'p) t list -> ('a list, 'p) t

module Syntax : sig ... end

val run : ('a, 'e) t -> 'e -> 'a

Runs a ('a,'e)t and extracts the final value 'a from it.

val ask : ('e, 'e) t

Retrieves the monad environment.

val asks : ('e -> 'a) -> ('a, 'e) t

Retrieves a projection of the current monad environment.

val local : ('e -> 'e) -> ('a, 'e) t -> ('a, 'e) t

local f m executes a computation in m in an environment modified by f.