overloaded-records: Overloaded Records based on current GHC proposal.
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Implementation of Overloaded Records based on current GHC proposal.
This implementation is highly experimental and may change rapidly.
More about the current status of OverloadedRecordFields language extension can be found on: GHC Wiki: OverloadedRecordFields.
See README for usage example.
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Properties
| Versions | 0.1.0.0, 0.1.0.0, 0.2.0.0, 0.3.0.0, 0.4.0.0, 0.4.1.0, 0.4.2.0 |
|---|---|
| Change log | ChangeLog.md |
| Dependencies | base (>=4.7 && <5), data-default-class (>=0.0 && <0.1), template-haskell (>=2.9 && <2.12) [details] |
| License | BSD-3-Clause |
| Copyright | (c) 2016, Peter Trško |
| Author | Peter Trško |
| Maintainer | peter.trsko@gmail.com |
| Category | Data |
| Home page | https://github.com/trskop/overloaded-records |
| Bug tracker | https://github.com/trskop/overloaded-records/issues |
| Source repo | head: git clone git://github.com/trskop/overloaded-records.git this: git clone git://github.com/trskop/overloaded-records.git(tag 0.1.0.0) |
| Uploaded | by PeterTrsko at 2016-02-28T23:35:54Z |
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| Name | Description | Default |
|---|---|---|
| pedantic | Pass additional warning flags to GHC. | Disabled |
Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info
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- overloaded-records-0.1.0.0.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)
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Readme for overloaded-records-0.1.0.0
[back to package description]Overloaded Records
Description
Implementation of /Overloaded Records/ based on current GHC proposal.
This implementation is highly experimental and may change rapidly.
More about the current status of OverloadedRecordFields language extension can be found on GHC Wiki: OverloadedRecordFields.
Usage Example
{-# LANGUAGE DataKinds #-} -- overloadedRecords, labels
{-# LANGUAGE FlexibleContexts #-} -- labels
{-# LANGUAGE FlexibleInstances #-} -- overloadedRecords
{-# LANGUAGE MultiParamTypeClasses #-} -- overloadedRecords
{-# LANGUAGE TemplateHaskell #-} -- overloadedRecords, labels
{-# LANGUAGE TypeFamilies #-} -- overloadedRecords
module FooBar
where
import Data.Default.Class (Default(def))
import Data.OverloadedRecords.TH (overloadedRecords)
import Data.OverloadedLabels.TH (label, labels)
data Foo a = Foo
{ _x :: Int
, _y :: a
}
overloadedRecords def ''Foo
labels ["x", "y"]
newtype Bar a = Bar {_bar :: a}
overloadedRecords def ''Bar
label "bar"
License
The BSD 3-Clause License, see LICENSE file for details. This implementation is based on original prototype, which is under MIT License.
Contributions
Contributions, pull requests and bug reports are welcome! Please don't be afraid to contact author using GitHub or by e-mail.