Support for type parameters

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
48/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
javascript, python
Domain
tooling

Research direction

Start by locating the Python syntax grammar and the handling of generic function definitions in the highlighter. Reproduce the provided Python 3.13 example and verify that the return arrow is no longer marked as a syntax error; add or update a regression check if the project provides one.

Written by the indexing model from the issue text.

Description

Steps to Reproduce:

Consider the following code, using type parameters with python >= 3.13:

def f[T](x: T) -> T: ...

The -> is highlighted red, seemingly indicating a syntax error, although there is no syntax error.

Originally from @s-banach in https://github.com/microsoft/vscode/issues/251997

Dominant language
JavaScript
Stars
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Forks
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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.

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