eclipse-xtext / eclipse-xtext/xtext

[ChangeSerializer] wrong output: sort with semicolon

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Dominant language
Java
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Avg merge
3d 7h
Merged PRs (30d)
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Description

for grammar

Rule:
	“foo” (refs+=[EObject|ID] “;”)*;

the semicolons ends up in the wrong place when re-ordering refs.

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 with the grammar example in the issue and inspect the ChangeSerializer implementation that reorders refs. Reproduce the serialization of the repeated reference rule, then determine the expected semicolon placement. Done means reordered refs retain the semicolons in the correct positions.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
compilers
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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