jquery / jquery/esprima

"super" not parse correctly

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Dominant language
TypeScript
Stars
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Description

Steps to reproduce

esprima.parse('!{ a() { !function* (a = super.b()){} } };')

esprima.parse('class a extends b { c() { function* d(c = super.e()){} } }')

esprima.parse('class a extends b { c() { !function* (c = super.d()){} } }')

esprima.parse('function* a(b){ super.c }')

esprima.parse('!function* (a){ super.b }')

esprima.parse('{ a() { function* b(){ super.c(); } } };')

esprima.parse('!{ a() { !function* (){ super.b(); } } };')

esprima.parse('class a extends b { c() { function* d(){ super.e(); } } }')

esprima.parse('class a extends b { c() { !function* (){ super.d(); } } }')

esprima.parse('class a { constructor() { super(); } }')

esprima.parse('class a extends b { static c() { super(); } }')

esprima.parse('class a extends b { constructor() { !{*constructor() { super(); }}; } }')
Expected output

Should throw an error

Actual output

Outputs a 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 by running the listed esprima.parse reproductions and inspect the parser entry points that handle super expressions, generators, defaults, and class methods. The fix is complete when each invalid example 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
Mostly clear
Newbie friendliness
38/100

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