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Java > Open Source Codes > edu > umd > cs > findbugs > InstructionScannerGenerator


1 /*
2  * FindBugs - Find bugs in Java programs
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;
21
22 /**
23  * Class for generating InstructionScanners at particular instructions of a path.
24  * Because we don't know a priori where we might want to start scanning
25  * in order to find a pattern in a path, we use this interface to tell us which
26  * locations are candidates for starting a pattern.
27  */

28 public interface InstructionScannerGenerator {
29     /**
30      * Return true if a new scanner should be created starting at this instruction,
31      * false otherwise.
32      */

33     public boolean start(org.apache.bcel.generic.InstructionHandle handle);
34
35     /**
36      * Create a new scanner.
37      */

38     public InstructionScanner createScanner();
39 }
40
41 // vim:ts=4
42
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