package eio

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Effect-based direct-style IO API for OCaml

Install

dune-project
 Dependency

Authors

Maintainers

Sources

eio-1.3.tbz
sha256=8ed5c13e6689f31c85dca5f12762d84b8cc0042a7b07d3e464df6eb4b72b3dfc
sha512=46e8f817f32c3316e7f35835a136ad177a295b3306351eb2efa2386482b0169a5b19ed2925b32da2a1f10d40f083fe3d588dd401908f9fec6e4a44cd68535204

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 ()))
OCaml

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