01: /* Copyright (C) 2004 - 2007 db4objects Inc. http://www.db4o.com
02:
03: This file is part of the db4o open source object database.
04:
05: db4o is free software; you can redistribute it and/or modify it under
06: the terms of version 2 of the GNU General Public License as published
07: by the Free Software Foundation and as clarified by db4objects' GPL
08: interpretation policy, available at
09: http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
10: Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
11: Suite 350, San Mateo, CA 94403, USA.
12:
13: db4o is distributed in the hope that it will be useful, but WITHOUT ANY
14: WARRANTY; without even the implied warranty of MERCHANTABILITY or
15: FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16: for more details.
17:
18: You should have received a copy of the GNU General Public License along
19: with this program; if not, write to the Free Software Foundation, Inc.,
20: 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21: package EDU.purdue.cs.bloat.tree;
22:
23: import java.util.*;
24:
25: /**
26: * <tt>JumpStmt</tt> is the super class for several classes that represent
27: * statements that chang the flow of control in a program.
28: *
29: * @see GotoStmt
30: * @see IfStmt
31: * @see JsrStmt
32: */
33: public abstract class JumpStmt extends Stmt {
34: Set catchTargets;
35:
36: public JumpStmt() {
37: catchTargets = new HashSet();
38: }
39:
40: /**
41: * The <tt>Block</tt> containing this <tt>JumpStmt</tt> may lie within a
42: * try block (i.e. it is a <i>protected</i> block). If so, then
43: * <tt>catchTargets()</tt> returns a set of <tt>Block</tt>s that begin
44: * the exception handler for the exception that may be thrown in the
45: * protected block.
46: */
47: public Collection catchTargets() {
48: return catchTargets;
49: }
50:
51: protected Node copyInto(final Node node) {
52: ((JumpStmt) node).catchTargets.addAll(catchTargets);
53: return super.copyInto(node);
54: }
55: }
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