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Java > Open Source Codes > org > eclipse > jdt > internal > debug > eval > ast > instructions > PushArrayLength


1 /*******************************************************************************
2  * Copyright (c) 2000, 2005 IBM Corporation and others.
3  * All rights reserved. This program and the accompanying materials
4  * are made available under the terms of the Eclipse Public License v1.0
5  * which accompanies this distribution, and is available at
6  * http://www.eclipse.org/legal/epl-v10.html
7  *
8  * Contributors:
9  * IBM Corporation - initial API and implementation
10  *******************************************************************************/
11 package org.eclipse.jdt.internal.debug.eval.ast.instructions;
12
13
14 import org.eclipse.core.runtime.CoreException;
15 import org.eclipse.jdt.debug.core.IJavaArray;
16  
17 /**
18  * Pops an array object off the stack, and pushes its length.
19  */
20 public class PushArrayLength extends CompoundInstruction {
21     
22     public PushArrayLength(int start) {
23         super(start);
24     }
25     
26     public void execute() throws CoreException {
27         IJavaArray receiver= (IJavaArray)popValue();
28         
29         int length= receiver.getLength();
30         pushNewValue(length);
31     }
32     
33     public String JavaDoc toString() {
34         return InstructionsEvaluationMessages.PushArrayLength_push_array_length__1;
35     }
36 }
37
38
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