package eio

  1. Overview
  2. Docs
Effect-based direct-style IO API for OCaml

Install 

dune-project
 Dependency

github.com Edit opam file Versions (20)

Authors

  1. A
    Anil Madhavapeddy
  2. T
    Thomas Leonard

Maintainers

  1. A
    anil@recoil.org

Sources

eio-1.4.tbz
sha256=ba11ad486f492130dbb486f2b3bdc4905643f10016806ddf86e9a34e4346aaa5
sha512=57ef2c137ccdc26d8029e636b6a4ee92da7c6b2f35954946bd56ca595d6947a8ec42f6f83f8552f73d6719e6ce2314cae2e2fad1686a387522935e6f90e9a8d9

doc/src/eio.mock/action.ml.html

Source file action.ml

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open Eio.Std

type 'a t = [
  | `Return of 'a
  | `Raise of exn
  | `Await of 'a Eio.Promise.or_exn
  | `Yield_then of 'a t
  | `Run of unit -> 'a
]

let rec run = function
  | `Return x -> x
  | `Raise ex -> raise ex
  | `Await p -> Promise.await_exn p
  | `Yield_then t -> Fiber.yield (); run t
  | `Run fn -> fn ()

let rec map f = function
  | `Return x -> `Return (f x)
  | `Raise ex -> `Raise ex
  | `Await p -> `Run (fun () -> f (Promise.await_exn p))
  | `Yield_then t -> `Yield_then (map f t)
  | `Run fn -> `Run (fun () -> f (fn ()))