https://github.com/justinwoo/purescript-bibimbap

The flip side of Chirashi, simply storing sum type values and retrieving them by using the constructor name as a test value, by using Generic.Rep to get constructor names from a sum type definition.
https://github.com/justinwoo/purescript-bibimbap

error generics-rep purescript

Last synced: 5 months ago
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The flip side of Chirashi, simply storing sum type values and retrieving them by using the constructor name as a test value, by using Generic.Rep to get constructor names from a sum type definition.

• Host: GitHub
• URL: https://github.com/justinwoo/purescript-bibimbap
• Owner: justinwoo
• License: mit
• Created: 2018-09-30T07:49:47.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2018-09-30T07:53:01.000Z (almost 7 years ago)
• Last Synced: 2025-01-27T04:05:09.235Z (6 months ago)
• Topics: error, generics-rep, purescript
• Language: PureScript
• Homepage:
• Size: 3.91 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Purescript-Bibimbap

[![Build Status](https://travis-ci.org/justinwoo/purescript-bibimbap.svg?branch=master)](https://travis-ci.org/justinwoo/purescript-bibimbap)

[Docs on Pursuit](https://pursuit.purescript.org/packages/purescript-bibimbap)

The flip side of [Chirashi](https://github.com/justinwoo/purescript-chirashi), simply storing sum type values and retrieving them by using the constructor name as a test value, by using `Generic.Rep` to get constructor names from a sum type definition.

Works by subclassing Error.

![](https://i.imgur.com/LG0UqbA.jpg)

## Usage

```purs

data ErrorGenericSum

  = Apple

  | Banana { info :: String }

  | Cherry Int Int Int

derive instance genericErrorGenericSum :: GR.Generic ErrorGenericSum _

main = do

  let

    knownGenericSum :: ErrorGenericSum

    knownGenericSum = Banana { info: "hello" }

    knownError = Bibimbap.mkGenericSumError knownGenericSum

    resultKnownError = Bibimbap.readGenericSum knownError

  Assert.assertEqual

    { expected: Just knownGenericSum

    , actual: resultKnownError

    }

```

See tests for more examples.