| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.debug.eval.ast.instructions; |
| |
| import java.text.MessageFormat; |
| |
| 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; |
| |
| 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() |
| */ |
| 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, MessageFormat.format(InstructionsEvaluationMessages.getString("InstanceOfOperator.No_class_object"), new String[]{type.getName()}), null)); //$NON-NLS-1$ |
| } |
| push(classObject.sendMessage(IS_INSTANCE, IS_INSTANCE_SIGNATURE, new IJavaValue[] {object}, getContext().getThread(), false)); |
| } |
| |
| public String toString() { |
| return InstructionsEvaluationMessages.getString("InstanceOfOperator._instanceof___operator_3"); //$NON-NLS-1$ |
| } |
| |
| } |