The body of a with statement must not be a labeled function declaration
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- Dominant language
- TypeScript
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Description
Steps to reproduce
esprima.parse('with(1) b: function a(){}')
Expected output
Should throw
Actual output
Parses invalid AST node
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by running the supplied esprima.parse reproduction against the TypeScript parser implementation and inspect how a with statement's body is parsed. Done means the example throws instead of producing an AST for a labeled function declaration, with the existing parser behavior checked for regressions.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript, typescript
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 48/100