eclipse-xtext / eclipse-xtext/xtext
Xtend does not accept annotation @Nullable on parameter
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- Java
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Description
Using org.eclipse.jdt.annotations.
Is there a problem if the annotation has
@Target({ TYPE_USE })
like @Nullable/@NonNull have it?
def String func( @Nullable String s ){ ...
results in: The annotation @Nullable is disallowed at this location
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 by reproducing the reported Xtend declaration with org.eclipse.jdt.annotations and @Nullable targeted at TYPE_USE. Trace how the parameter annotation is checked, then verify that the declaration is accepted without the reported error while other invalid annotation locations remain rejected.
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
- 42/100