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Java > Open Source Codes > edu > umd > cs > findbugs > ba > DFSCFGPrinter


1 /*
2  * Bytecode Analysis Framework
3  * Copyright (C) 2003,2004 University of Maryland
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this library; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18  */

19
20 package edu.umd.cs.findbugs.ba;
21
22 public class DFSCFGPrinter extends CFGPrinter implements DFSEdgeTypes {
23     private DepthFirstSearch dfs;
24
25     public DFSCFGPrinter(CFG cfg, DepthFirstSearch dfs) {
26         super(cfg);
27         this.dfs = dfs;
28     }
29
30     @Override JavaDoc
31          public String JavaDoc edgeAnnotate(Edge edge) {
32         int dfsEdgeType = dfs.getDFSEdgeType(edge);
33         switch (dfsEdgeType) {
34         case UNKNOWN_EDGE:
35             return "UNKNOWN_EDGE";
36         case TREE_EDGE:
37             return "TREE_EDGE";
38         case BACK_EDGE:
39             return "BACK_EDGE";
40         case CROSS_EDGE:
41             return "CROSS_EDGE";
42         case FORWARD_EDGE:
43             return "FORWARD_EDGE";
44         default:
45             throw new IllegalStateException JavaDoc("no DFS edge type?");
46         }
47     }
48 }
49
50
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