doesn't throw on invalid LHS in assignment ( spread)
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- Dominant language
- TypeScript
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- 7.1k
- Forks
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Description
Steps to reproduce
esprima.parse('[a, ...(b = c)] = 0')
Expected output
Should throw
Actual output
Parses 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 supplied esprima.parse reproduction and tracing the parser entry point for array spread assignments. Find the validation for assignment left-hand sides and add regression coverage for this syntax; done means the invalid example throws instead of producing an AST.
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
- 38/100