eclipse-xtext / eclipse-xtext/xtext
Serializer skips tokens
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- Dominant language
- Java
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Description
Inside https://github.com/eclipse/xtext-eclipse/pull/1586/files (search for "CopyFieldNameToVariableStmt") it was found that the serializer seems to skip some tokens where it is unknown why it does so.
Serializing
CopyFieldNameToVariableStmt:
'FIELD-NAME-TO-VARIABLE' ((',' 'SCREEN' '=' '(' line=INT ',' column=INT ')') &
(',' 'VAR' '=' name=ID) &
(',' 'TYPE' '=' 'REPLACE')?);
seems to remove a "(" for unknown reason.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the files changed in pull request #1586 and search for CopyFieldNameToVariableStmt. Reproduce serialization of the shown grammar and compare the input and output around the opening parenthesis. Done means identifying why the token is skipped and confirming that serialization preserves it.
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
- Needs clarification
- Newbie friendliness
- 35/100