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


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 import org.eclipse.core.runtime.CoreException;
14 import org.eclipse.jdt.debug.core.IJavaPrimitiveValue;
15
16 public class ConditionalJump extends Jump {
17     private boolean fJumpOnTrue;
18     
19     public ConditionalJump(boolean jumpOnTrue) {
20         fJumpOnTrue= jumpOnTrue;
21     }
22     
23     /*
24      * @see Instruction#execute()
25      */
26     public void execute() throws CoreException {
27         IJavaPrimitiveValue condition= (IJavaPrimitiveValue)popValue();
28         
29         if (!(fJumpOnTrue ^ condition.getBooleanValue())) {
30             jump(fOffset);
31         }
32     }
33
34     /*
35      * @see Object#toString()
36      */
37     public String JavaDoc toString() {
38         return InstructionsEvaluationMessages.ConditionalJump_conditional_jump_1;
39     }
40
41 }
42
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