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monad-control: Lift control operations, like exception catching, through monad transformers

[ bsd3, control, library ] [ Propose Tags ]

This package defines the type class MonadBaseControl, a subset of MonadBase into which generic control operations such as catch can be lifted from IO or any other base monad. Instances are based on monad transformers in MonadTransControl, which includes all standard monad transformers in the transformers library except ContT.

See the lifted-base package which uses monad-control to lift IO operations from the base library (like catch or bracket) into any monad that is an instance of MonadBase or MonadBaseControl.

Note that this package is a rewrite of Anders Kaseorg's monad-peel library. The main difference is that this package provides CPS style operators and exploits the RankNTypes and TypeFamilies language extensions to simplify and speedup most definitions.

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Versions [RSS] 0.1, 0.2, 0.2.0.1, 0.2.0.2, 0.2.0.3, 0.3, 0.3.0.1, 0.3.1, 0.3.1.1, 0.3.1.2, 0.3.1.3, 0.3.1.4, 0.3.2, 0.3.2.1, 0.3.2.2, 0.3.2.3, 0.3.3.0, 0.3.3.1, 1.0.0.0, 1.0.0.1, 1.0.0.2, 1.0.0.3, 1.0.0.4, 1.0.0.5, 1.0.1.0, 1.0.2.0, 1.0.2.1, 1.0.2.2, 1.0.2.3, 1.0.2.4, 1.0.3, 1.0.3.1
Change log CHANGELOG
Dependencies base (>=4.5 && <5), stm (>=2.3 && <3), transformers (>=0.2 && <0.7), transformers-base (>=0.4.4 && <0.5), transformers-compat (>=0.3 && <0.8) [details]
License BSD-3-Clause
Copyright (c) 2011 Bas van Dijk, Anders Kaseorg
Author Bas van Dijk, Anders Kaseorg
Maintainer Oleg Grenrus <oleg.grenrus@iki.fi>, Bas van Dijk <v.dijk.bas@gmail.com>
Category Control
Home page https://github.com/basvandijk/monad-control
Bug tracker https://github.com/basvandijk/monad-control/issues
Source repo head: git clone git://github.com/basvandijk/monad-control.git
Uploaded by phadej at 2021-08-02T10:16:56Z
Distributions Arch:1.0.3.1, Debian:1.0.2.3, Fedora:1.0.3.1, FreeBSD:1.0.0.4, LTSHaskell:1.0.3.1, NixOS:1.0.3.1, Stackage:1.0.3.1, openSUSE:1.0.3.1
Reverse Dependencies 549 direct, 7967 indirect [details]
Downloads 312457 total (413 in the last 30 days)
Rating 2.0 (votes: 1) [estimated by Bayesian average]
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Status Docs available [build log]
Last success reported on 2021-08-02 [all 1 reports]

Readme for monad-control-1.0.3.1

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This package defines the type class MonadControlIO, a subset of MonadIO into which generic control operations such as catch can be lifted from IO. Instances are based on monad transformers in MonadTransControl, which includes all standard monad transformers in the transformers library except ContT.

Note that this package is a rewrite of Anders Kaseorg's monad-peel library. The main difference is that this package provides CPS style operators and exploits the RankNTypes language extension to simplify most definitions.

This criterion based benchmark shows that monad-control is on average about 2.5 times faster than monad-peel.