/*******************************************************************************
* Copyright (c) 2000, 2012 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.debug.core.IJavaType;
import org.eclipse.jdt.debug.core.IJavaValue;
import org.eclipse.jdt.internal.debug.core.JDIDebugPlugin;
import org.eclipse.jdt.internal.debug.core.model.JDINullValue;
import org.eclipse.osgi.util.NLS;
public class InstanceOfOperator extends CompoundInstruction {
public static final String IS_INSTANCE = "isInstance"; //$NON-NLS-1$
public static final String IS_INSTANCE_SIGNATURE = "(Ljava/lang/Object;)Z"; //$NON-NLS-1$
public InstanceOfOperator(int start) {
super(start);
}
/*
* @see Instruction#execute()
*/
@Override
public void execute() throws CoreException {
IJavaType type = (IJavaType) pop();
IJavaValue value = popValue();
if (value instanceof JDINullValue) {
pushNewValue(false);
return;
}
IJavaObject object = (IJavaObject) value;
IJavaObject classObject = getClassObject(type);
if (classObject == null) {
throw new CoreException(
new Status(
IStatus.ERROR,
JDIDebugPlugin.getUniqueIdentifier(),
IStatus.OK,
NLS.bind(InstructionsEvaluationMessages.InstanceOfOperator_No_class_object,
new String[] { type.getName() }),
null));
}
push(classObject.sendMessage(IS_INSTANCE, IS_INSTANCE_SIGNATURE,
new IJavaValue[] { object }, getContext().getThread(), false));
}
@Override
public String toString() {
return InstructionsEvaluationMessages.InstanceOfOperator__instanceof___operator_3;
}
}