Some Eclipse Foundation services are deprecated, or will be soon. Please ensure you've read this important communication.
Bug 343079 - [compiler] internal compiler error when trying to invoke an abstract method as tsuper
Summary: [compiler] internal compiler error when trying to invoke an abstract method a...
Status: VERIFIED FIXED
Alias: None
Product: Objectteams
Classification: Tools
Component: OTJ (show other bugs)
Version: 0.8   Edit
Hardware: Other Linux
: P3 normal (vote)
Target Milestone: 0.8 M7   Edit
Assignee: Stephan Herrmann CLA
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2011-04-17 17:45 EDT by Stephan Herrmann CLA
Modified: 2011-04-28 14:49 EDT (History)
0 users

See Also:

Attachments
test & proposed fix (2.90 KB, patch)
2011-04-17 17:49 EDT, Stephan Herrmann CLA 		no flags Details | Diff
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Stephan Herrmann CLA 2011-04-17 17:45:05 EDT 
Given these teams:

public team class Team139ita7_1 {
    public abstract class R {
        abstract void rm();
    }
}

public team class Team139ita7_2 extends Team139ita7_1 {
    @Override
    public class R {
        @Override
        void rm() {
            tsuper.rm();
        }
    }
}

the compiler throws ICE:

cannot find real method binding for tsuper call!
	at org.eclipse.objectteams.otdt.internal.core.compiler.ast.TSuperMessageSend.generateCode(TSuperMessageSend.java:186)
	at org.eclipse.jdt.internal.compiler.ast.Statement.generateArguments(Statement.java:215)
	at org.eclipse.jdt.internal.compiler.ast.MessageSend.generateCode(MessageSend.java:321)
	at org.eclipse.jdt.internal.compiler.ast.Expression.generateCode(Expression.java:775)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.generateCode(AbstractMethodDeclaration.java:470)
	at org.eclipse.jdt.internal.compiler.ast.AbstractMethodDeclaration.generateCode(AbstractMethodDeclaration.java:371)
	at org.eclipse.jdt.internal.compiler.ast.TypeDeclaration.generateCode(TypeDeclaration.java:996)
Comment 1 Stephan Herrmann CLA 2011-04-17 17:49:28 EDT 
Created attachment 193444 [details]
test & proposed fix

The same test as in comment 0 and a fix: detect the situation as an
illegal direct call to an abstract method - thus avoiding the call to
generateCode on this tsuper call, which is where we bailed out previously.
Comment 2 Stephan Herrmann CLA 2011-04-17 17:51:55 EDT 
Patch committed as r1441,2.
Comment 3 Stephan Herrmann CLA 2011-04-28 14:49:58 EDT 
Verified for 0.8M7 using build 201104261158