reactjs / reactjs/react-docgen

Crash with Flow component syntax

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#944 3 comments 1 reaction 0 assignees View on GitHub

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flow
Dominant language
TypeScript
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Description

Docs: https://flow.org/en/docs/react/component-syntax/

Code
component Example( text: string = 'Hello World' ) {
    return <div>{text}</div>;
}
Expected
[
  {
    "description": "",
    "displayName": "Example",
    "methods": [],
    "props": {
      "text": {
        "required": false,
        "flowType": {
          "text": "string"
        },
        "description": "",
        "defaultValue": {
          "value": "'Hello World'",
          "computed": false
        }
      }
    }
  }
]
Actual
SyntaxError: playground.tsx: Missing semicolon. (1:9)

> 1 | component Example(
    |          ^
  2 | 	text: string = 'Hello World'
  3 | ) {
  4 | 	return <div>{text}</div>

Contributor guide

Open the contributing guide

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

Reproduce the Flow component example from the issue in playground.tsx and confirm the reported syntax error. Trace the parser handling for this component syntax; done means the example parses and produces the expected component metadata. No implementation file or test is named, so finding the relevant parser entry point is part of the work.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript, react
Domain
tooling
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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