jquery / jquery/esprima

should not allow to create class in single-statements (IfStatements)

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Dominant language
TypeScript
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Forks
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Description

Steps to reproduce
esprima.parse('if(1)class A{}')
Expected output

Should throw an error

Actual output

Outputs an AST tree

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

Start at the esprima.parse entry point and reproduce the issue with if(1)class A{}. Trace how an IfStatement accepts its single statement and compare that behavior with the ECMAScript restriction; done means the input throws an error 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
Clearly specified
Newbie friendliness
48/100

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