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Java > Open Source Codes > org > eclipse > jdt > internal > corext > refactoring > code > flow > SwitchFlowInfo


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.corext.refactoring.code.flow;
12
13 class SwitchFlowInfo extends FlowInfo {
14     private GenericConditionalFlowInfo fCases;
15     private boolean fHasNullCaseInfo;
16     
17     public SwitchFlowInfo() {
18         fCases= new GenericConditionalFlowInfo();
19     }
20     
21     public void mergeTest(FlowInfo info, FlowContext context) {
22         if (info == null)
23             return;
24         mergeSequential(info, context);
25     }
26     
27     public void mergeCase(FlowInfo info, FlowContext context) {
28         if (info == null) {
29             fHasNullCaseInfo= true;
30             return;
31         }
32         fCases.mergeConditional(info, context);
33     }
34     
35     public void mergeDefault(boolean defaultCaseExists, FlowContext context) {
36         if (!defaultCaseExists || fHasNullCaseInfo)
37             fCases.mergeEmptyCondition(context);
38         mergeSequential(fCases, context);
39     }
40 }
41
42
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