Arrow parameters must not contain yield expressions
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- Dominant language
- TypeScript
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Description
Steps to reproduce
esprima.parse('function *g() { ({x = yield}) => {} }')
Expected output
Should throw
Actual output
Outputs invalid AST
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 esprima.parse example from the issue and trace how arrow parameters containing yield expressions are parsed. Confirm the expected syntax error behavior and add or update coverage for this exact input, then verify that invalid AST output is no longer produced.
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
- Clearly specified
- Newbie friendliness
- 45/100