package eio

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

Install 

dune-project
 Dependency

github.com Readme Changelog ISC License Edit opam file Versions (22)

Authors

  1. A
    Anil Madhavapeddy
  2. T
    Thomas Leonard

Maintainers

  1. A
    anil@recoil.org

Sources

eio-1.6.tbz
sha256=c1f04986b401094176494863dde1ca9b292b59fdc679a9d7023e558d80fb5b15
sha512=92ed8cf20300b8a4e0141bdbc373c0803c5a24530cb65852637d905fff4a5b956a8859a00a424034ff78c1112da9b0391194bcd558326168bdebd1ce683a8890

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 ()))