super() in non derived class
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- Dominant language
- TypeScript
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Description
super() in non derived class constructors should throw a syntax error
Steps to reproduce
esprima.parse('class A{
constructor(){
super();
}
}')
Expected output
throw an syntax error.
in firefox
SyntaxError: super() is only valid in derived class constructors
in chrome
Uncaught SyntaxError: 'super' keyword unexpected here
Actual output
Relevant references
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
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- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the esprima.parse entry point and reproduce the issue using the JavaScript class constructor shown in the report. Trace how super() is validated in a non-derived class, then confirm that parsing rejects it with a SyntaxError matching the expected behavior.
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