mlabs-haskell / mlabs-haskell/purescript-aeson

Allow `constructor` property in Json

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Stars
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Forks
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Description

> parseJsonStringToAeson "{\"constructor\": \"Just\"}"
(Left (TypeMismatch "JSON String"))

> parseJsonStringToAeson "{\"constructo\": \"Just\"}"  
(Right {"constructo":"Just"})

it comes from our fork of json-bigint lib:

> jsonBigint.parse("{\"constructor\": \"Just\"}")

Uncaught:
{
  name: 'SyntaxError',
  message: 'Object contains forbidden constructor property',
  at: 16,
  text: '{"constructor": "Just"}'
}

We should probably initialize it with

{ constructorAction: 'preserve` }

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start at the parseJsonStringToAeson entry point and locate where the forked json-bigint parser is initialized. Compare the handling of constructor with constructo and verify the parser examples after the configuration change; done means JSON containing a constructor property parses successfully without changing other object-property behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
data
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
48/100

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