mtl-compat: Backported Control.Monad.Except module from mtl
This package backports the Control.Monad.Except module from
mtl
(if using mtl-2.2.0.1
or earlier), which reexports the
ExceptT
monad transformer and the MonadError
class.
This package should only be used if there is a need to use the
Control.Monad.Except
module specifically. If you just want
the mtl
class instances for ExceptT
, use
transformers-compat
instead, since mtl-compat
does nothing
but reexport the instances from that package.
Note that unlike how mtl-2.2
or later works, the
Control.Monad.Except module defined in this package exports
all of ExceptT
's monad class instances. Therefore, you may
have to declare import Control.Monad.Except ()
at the top of
your file to get all of the ExceptT
instances in scope.
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Flags
Automatic Flags
Name | Description | Default |
---|---|---|
two-point-one | Use mtl-2.1.3.1 or earlier with transformers-compat. This will cause this package to export the Control.Monad.Except module. | Disabled |
two-point-two | Use mtl-2.2.0.1 with transformers. This will cause this package to export the Control.Monad.Except module. | Disabled |
Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info
Downloads
- mtl-compat-0.2.2.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)
Maintainer's Corner
For package maintainers and hackage trustees
Candidates
- No Candidates
Versions [RSS] | 0.1, 0.1.1, 0.2.0.4, 0.2.1.1, 0.2.1.2, 0.2.1.3, 0.2.2 |
---|---|
Change log | CHANGELOG.md |
Dependencies | base (>=4.3 && <5), mtl (>=2.0.1), transformers (>=0.4.1 && <0.6), transformers-compat (>=0.4 && <0.7) [details] |
License | BSD-3-Clause |
Copyright | (C) 2015-2017 Ryan Scott |
Author | Ryan Scott |
Maintainer | Ryan Scott <ryan.gl.scott@gmail.com> |
Category | Compatibility |
Home page | https://github.com/haskell-compat/mtl-compat |
Bug tracker | https://github.com/haskell-compat/mtl-compat/issues |
Source repo | head: git clone https://github.com/haskell-compat/mtl-compat |
Uploaded | by ryanglscott at 2019-04-28T13:30:42Z |
Distributions | LTSHaskell:0.2.2, NixOS:0.2.2, Stackage:0.2.2 |
Reverse Dependencies | 29 direct, 495 indirect [details] |
Downloads | 34836 total (157 in the last 30 days) |
Rating | 2.0 (votes: 1) [estimated by Bayesian average] |
Your Rating | |
Status | Docs available [build log] Last success reported on 2019-04-28 [all 3 reports] |