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Bug 362280

Summary:	[xbase][compiler] compilation fails for closure using generic type parameter
Product:	[Modeling] TMF	Reporter:	Knut Wannheden <knut.wannheden>
Component:	Xtext	Assignee:	Project Inbox <tmf.xtext-inbox>
Status:	CLOSED FIXED	QA Contact:
Severity:	normal
Priority:	P3	CC:	knut.wannheden
Version:	2.1.0
Target Milestone:	---
Hardware:	PC
OS:	Mac OS X - Carbon (unsup.)
Whiteboard:

Description Knut Wannheden

2011-10-28 04:36:26 EDT

Comment 1 Knut Wannheden

2011-10-28 04:39:04 EDT

The compilation of:

public class Foo<T> {
	def foo() {
		[T it|null]
	}	
}

fails with an error during compilation. There is no error in the error log or error marker to indicate that nothing was compiled.

4408042 [Worker-20] ERROR org.eclipse.xtext.builder.impl.XtextBuilder  - 
java.lang.IllegalArgumentException
	at org.eclipse.xtext.xbase.compiler.TypeReferenceSerializer.serialize(TypeReferenceSerializer.java:135)
	at org.eclipse.xtext.xbase.compiler.TypeReferenceSerializer.serialize(TypeReferenceSerializer.java:131)
	at org.eclipse.xtext.xbase.compiler.TypeReferenceSerializer.serialize(TypeReferenceSerializer.java:131)
	at org.eclipse.xtext.xbase.compiler.TypeReferenceSerializer.serialize(TypeReferenceSerializer.java:122)
	at org.eclipse.xtext.xbase.compiler.TypeReferenceSerializer.serialize(TypeReferenceSerializer.java:133)
	at org.eclipse.xtext.xbase.compiler.TypeReferenceSerializer.serialize(TypeReferenceSerializer.java:61)
	at org.eclipse.xtext.xbase.compiler.TypeReferenceSerializer.serialize(TypeReferenceSerializer.java:58)
	at org.eclipse.xtext.xbase.compiler.JvmModelGenerator.serialize(JvmModelGenerator.java:1043)
	at org.eclipse.xtext.xbase.compiler.JvmModelGenerator._generateMember(JvmModelGenerator.java:469)
	at org.eclipse.xtext.xbase.compiler.JvmModelGenerator.generateMember(JvmModelGenerator.java:1123)
	at org.eclipse.xtext.xbase.compiler.JvmModelGenerator$1.apply(JvmModelGenerator.java:166)
	at org.eclipse.xtext.xbase.compiler.JvmModelGenerator$1.apply(JvmModelGenerator.java:1)
	at org.eclipse.xtext.xbase.lib.IterableExtensions$FunctionDelegate.apply(IterableExtensions.java:808)
	at com.google.common.collect.Lists$TransformingRandomAccessList.get(Lists.java:431)
	at java.util.AbstractList$Itr.next(AbstractList.java:345)
	at com.google.common.collect.Iterators$7.computeNext(Iterators.java:602)
	at com.google.common.collect.AbstractIterator.tryToComputeNext(AbstractIterator.java:135)
	at com.google.common.collect.AbstractIterator.hasNext(AbstractIterator.java:130)
	at org.eclipse.xtext.xbase.compiler.JvmModelGenerator.generateBody(JvmModelGenerator.java:179)
	at org.eclipse.xtext.xbase.compiler.JvmModelGenerator.generateType(JvmModelGenerator.java:95)
	at org.eclipse.xtext.xbase.compiler.JvmModelGenerator._internalDoGenerate(JvmModelGenerator.java:86)
	at org.eclipse.xtext.xbase.compiler.JvmModelGenerator.internalDoGenerate(JvmModelGenerator.java:1098)
	at org.eclipse.xtext.xbase.compiler.JvmModelGenerator.doGenerate(JvmModelGenerator.java:75)
	at org.eclipse.xtext.builder.BuilderParticipant.handleChangedContents(BuilderParticipant.java:208)
	at org.eclipse.xtext.builder.BuilderParticipant.build(BuilderParticipant.java:154)
	at org.eclipse.xtext.builder.impl.RegistryBuilderParticipant.build(RegistryBuilderParticipant.java:60)
	at org.eclipse.xtext.builder.impl.XtextBuilder.doBuild(XtextBuilder.java:160)
	at org.eclipse.xtext.builder.impl.XtextBuilder.incrementalBuild(XtextBuilder.java:141)
	at org.eclipse.xtext.builder.impl.XtextBuilder.build(XtextBuilder.java:91)
	at org.eclipse.core.internal.events.BuildManager$2.run(BuildManager.java:627)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:170)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:201)
	at org.eclipse.core.internal.events.BuildManager$1.run(BuildManager.java:253)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.events.BuildManager.basicBuild(BuildManager.java:256)
	at org.eclipse.core.internal.events.BuildManager.basicBuildLoop(BuildManager.java:309)
	at org.eclipse.core.internal.events.BuildManager.build(BuildManager.java:341)
	at org.eclipse.core.internal.events.AutoBuildJob.doBuild(AutoBuildJob.java:140)
	at org.eclipse.core.internal.events.AutoBuildJob.run(AutoBuildJob.java:238)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

Comment 2 Knut Wannheden

2011-10-28 04:40:36 EDT

The problem is the "null". Changing it to e.g. the following works:

public class Foo<T> {
    def foo() {
        [T t|t]
    }    
}

Comment 3 Knut Wannheden

2012-10-09 11:16:33 EDT

It seems like this problem has been fixed in the meantime.

Comment 4 Eclipse Webmaster

2017-10-31 11:07:51 EDT

Requested via bug 522520.

-M.

Comment 5 Eclipse Webmaster

2017-10-31 11:19:20 EDT

Requested via bug 522520.

-M.