/*******************************************************************************
* Copyright (c) 2000, 2011 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.internal.debug.eval.ast.instructions;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jdt.debug.core.IJavaObject;
import org.eclipse.jdt.internal.debug.core.JDIDebugPlugin;
import org.eclipse.jdt.internal.debug.core.model.JDIObjectValue;
import org.eclipse.jdt.internal.debug.eval.ast.engine.IRuntimeContext;
/**
* Pushes the 'this' object onto the stack.
*/
public class PushThis extends SimpleInstruction {
private int fEnclosingLevel;
public PushThis(int enclosingLevel) {
fEnclosingLevel = enclosingLevel;
}
@Override
public void execute() throws CoreException {
IRuntimeContext context = getContext();
IJavaObject thisInstance = context.getThis();
if (thisInstance == null) {
// static context
push(context.getReceivingType());
} else {
if (fEnclosingLevel != 0) {
thisInstance = ((JDIObjectValue) thisInstance)
.getEnclosingObject(fEnclosingLevel);
if (thisInstance == null) {
throw new CoreException(
new Status(
IStatus.ERROR,
JDIDebugPlugin.getUniqueIdentifier(),
IStatus.OK,
InstructionsEvaluationMessages.PushThis_Unable_to_retrieve_the_correct_enclosing_instance_of__this__2,
null));
}
}
push(thisInstance);
}
}
@Override
public String toString() {
return InstructionsEvaluationMessages.PushThis_push___this__1;
}
}