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/eio/Eio/Exn/Backend/index.html

Module Exn.BackendSource

Extensible backend-specific exceptions.

Sourcetype t = ..
Sourceval show : bool ref

Controls the behaviour of pp.

Sourceval register_pp : (Format.formatter -> t -> bool) -> unit

register_pp pp adds pp as a pretty-printer of backend errors.

pp f err should format err using f, if possible. It should return true on success, or false if it didn't recognise err.

Sourceval pp : t Fmt.t

pp behaves like pp except that if display of backend errors has been turned off (with show) then it just prints a place-holder.

This is useful for formatting the backend-specific part of exceptions, which should be hidden in expect-style testing that needs to work on multiple backends.