01: /*
02: * Bytecode Analysis Framework
03: * Copyright (C) 2003,2004 University of Maryland
04: *
05: * This library is free software; you can redistribute it and/or
06: * modify it under the terms of the GNU Lesser General Public
07: * License as published by the Free Software Foundation; either
08: * version 2.1 of the License, or (at your option) any later version.
09: *
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.bcp;
21:
22: import org.apache.bcel.generic.InstructionHandle;
23:
24: import edu.umd.cs.findbugs.ba.Edge;
25:
26: /**
27: * An abstract PatternElement subclass for pattern elements which
28: * must match exactly one instruction and accept any kind of branch.
29: * (Subclasses may override acceptBranch() to implement more selective
30: * handling of branches.)
31: *
32: * @author David Hovemeyer
33: * @see PatternElement
34: */
35: public abstract class SingleInstruction extends PatternElement {
36: @Override
37: public boolean acceptBranch(Edge edge, InstructionHandle source) {
38: return true;
39: }
40:
41: @Override
42: public int minOccur() {
43: return 1;
44: }
45:
46: @Override
47: public int maxOccur() {
48: return 1;
49: }
50:
51: }
52:
53: // vim:ts=4
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