ruby / ruby/error_highlight

Does not work in IRB

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Dominant language
Ruby
Stars
155
Forks
37
Avg merge
4d 2h
Merged PRs (30d)
1

Description

Due to the design limitation of the ruby internal API (RubyVM::AST.of), error_highlight cannot get the code snippet evaluated by Kernel#eval, etc. This means that error_highlight cannot show highlight lines for IRB.

This is a very tough issue. We need to design how to keep the eval'ed source code.

Slightly related to: https://bugs.ruby-lang.org/issues/16983

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 investigating RubyVM::AST.of and how Kernel#eval source is represented when used from IRB. Review the related Ruby issue 16983 for context on retaining evaluated source code. Done means error_highlight can retain the eval'ed source and show highlight lines for IRB errors.

Written by the indexing model from the issue text.

Assessment

Tech stack
ruby
Domain
developer-experience, tooling
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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