01: /* Soot - a J*va Optimization Framework
02: * Copyright (C) 2002 Florian Loitsch
03: *
04: * This library is free software; you can redistribute it and/or
05: * modify it under the terms of the GNU Lesser General Public
06: * License as published by the Free Software Foundation; either
07: * version 2.1 of the License, or (at your option) any later version.
08: *
09: * This library is distributed in the hope that it will be useful,
10: * but WITHOUT ANY WARRANTY; without even the implied warranty of
11: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12: * Lesser General Public License for more details.
13: *
14: * You should have received a copy of the GNU Lesser General Public
15: * License along with this library; if not, write to the
16: * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17: * Boston, MA 02111-1307, USA.
18: */
19:
20: /*
21: * Modified by the Sable Research Group and others 1997-1999.
22: * See the 'credits' file distributed with Soot for the complete list of
23: * contributors. (Soot is distributed at http://www.sable.mcgill.ca/soot)
24: */
25:
26: package soot.toolkits.scalar;
27:
28: import java.util.*;
29:
30: /**
31: * Provides an implementation of a flow universe, wrapping collections.
32: */
33: public class CollectionFlowUniverse<E> implements FlowUniverse<E> {
34: Set<E> elements;
35:
36: public CollectionFlowUniverse(Collection<E> elements) {
37: this .elements = new HashSet<E>(elements);
38: }
39:
40: public int size() {
41: return elements.size();
42: }
43:
44: public Iterator<E> iterator() {
45: return elements.iterator();
46: }
47:
48: @SuppressWarnings("unchecked")
49: public E[] toArray() {
50: return (E[]) elements.toArray();
51: }
52: }
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