JetBrains / JetBrains/Arend

Allow more unicode symbols in aliases

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#299 3 comments 0 reactions 0 assignees View on GitHub

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Dominant language
Java
Stars
756
Forks
31
PR merge metrics
No merged PRs in 30d

Description

Screen Shot 2021-06-30 at 8 42 26 PM

As you can see, it is not possible to use `¬` symbol as an alias. This symbol is used commonly for negation, it is a bit surprising that I cannot use it as an alias.

Contributor guide

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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.

Research direction

Start by reproducing the alias declaration with the `¬` symbol and locate the parser or identifier-validation entry point for aliases. Check how other Unicode symbols are handled and add a regression test if the repository has coverage for aliases. Done means `¬` can be used as an alias without breaking existing alias parsing.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
compilers
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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