1 wbeebee 1.1.2.1 // QuadsCounter.java, created Mon Jan 22 by wbeebee
2 wbeebee 1.1.2.1 // Copyright (C) 2001 Wes Beebee <wbeebee@mit.edu>
3 wbeebee 1.1.2.1 // Licensed under the terms of the GNU GPL; see COPYING for details.
4 wbeebee 1.1.2.1 package harpoon.Analysis.Quads;
5 wbeebee 1.1.2.1
6 wbeebee 1.1.2.1 import harpoon.ClassFile.HCode;
7 wbeebee 1.1.2.1 import harpoon.ClassFile.HCodeFactory;
8 wbeebee 1.1.2.1 import harpoon.ClassFile.HMethod;
9 wbeebee 1.1.2.1
10 wbeebee 1.1.2.1 /**
11 wbeebee 1.1.2.1 * <code>QuadCounter</code> is an <code>harpoon.ClassFile.HCodeFactory</code>
12 wbeebee 1.1.2.1 * which counts the number of quads that have been <code>convert</code>ed
13 wbeebee 1.1.2.1 * thus far. <code>count()</code> returns the current count.
14 wbeebee 1.1.2.1 * Use in conjunction with a <code>harpoon.ClassFile.CachingCodeFactory</code>
15 wbeebee 1.1.2.1 * to create an accurate count:
16 wbeebee 1.1.2.1 * <code>hcf = new CachingCodeFactory(new QuadCounter(hcf));</code>
17 wbeebee 1.1.2.1 *
18 cananian 1.1.2.4 * @author Wes Beebee <wbeebee@mit.edu>
19 wbeebee 1.3 * @version $Id: QuadCounter.java,v 1.3 2002/08/14 20:50:11 wbeebee Exp $
20 wbeebee 1.1.2.1 */
21 wbeebee 1.1.2.1
22 salcianu 1.1.2.2 public class QuadCounter implements HCodeFactory, java.io.Serializable {
23 wbeebee 1.1.2.1 private long numQuads;
24 wbeebee 1.1.2.1 private HCodeFactory parent;
25 wbeebee 1.1.2.1
26 wbeebee 1.1.2.1 /** Creates a new <code>QuadCounter</code> with <code>hcf</code> as its
27 wbeebee 1.1.2.1 * parent.
28 wbeebee 1.1.2.1 */
29 wbeebee 1.1.2.1 public QuadCounter(HCodeFactory hcf) {
30 wbeebee 1.1.2.1 numQuads = 0;
31 wbeebee 1.1.2.1 parent = hcf;
32 wbeebee 1.1.2.1 }
33 wbeebee 1.1.2.1
34 wbeebee 1.1.2.1 /** Converts <code>HMethod</code> <code>m</code> into an
35 wbeebee 1.1.2.1 * <code>HCode</code> and counts the number of <code>Quad</code>s
36 wbeebee 1.1.2.1 * returned.
37 wbeebee 1.1.2.1 */
38 wbeebee 1.1.2.1 public HCode convert(HMethod m) {
39 wbeebee 1.1.2.1 HCode hc = parent.convert(m);
40 wbeebee 1.1.2.1 if (hc != null) {
41 wbeebee 1.3 numQuads += hc.getElementsL().size();
42 wbeebee 1.1.2.1 }
43 wbeebee 1.1.2.1 return hc;
44 wbeebee 1.1.2.1 }
45 wbeebee 1.1.2.1
46 wbeebee 1.1.2.1 /** Gets the code name of this <code>HCodeFactory</code>. */
47 wbeebee 1.1.2.1
48 wbeebee 1.1.2.1 public String getCodeName() {
49 wbeebee 1.1.2.1 return parent.getCodeName();
50 wbeebee 1.1.2.1 }
51 wbeebee 1.1.2.1
52 wbeebee 1.1.2.1 /** Clears <code>HMethod</code> <code>m</code> from the cache.
53 wbeebee 1.1.2.1 * Note: this does not remove the <code>Quad</code>s from the total count.
54 wbeebee 1.1.2.1 */
55 wbeebee 1.1.2.1 public void clear(HMethod m) {
56 wbeebee 1.1.2.1 parent.clear(m);
57 wbeebee 1.1.2.1 }
58 wbeebee 1.1.2.1
59 wbeebee 1.1.2.1 /** Returns the current count of the number of <code>Quad</code>s
60 wbeebee 1.1.2.1 * converted.
61 wbeebee 1.1.2.1 */
62 wbeebee 1.1.2.1
63 wbeebee 1.1.2.1 public long count() {
64 wbeebee 1.1.2.1 return numQuads;
65 wbeebee 1.1.2.1 }
66 wbeebee 1.1.2.1
67 wbeebee 1.1.2.1 /** Print a textual representation of this <code>QuadCounter</code>. */
68 wbeebee 1.1.2.1
69 wbeebee 1.1.2.1 public String toString() {
70 wbeebee 1.1.2.1 return numQuads + " quads";
71 wbeebee 1.1.2.1 }
72 wbeebee 1.1.2.1
73 wbeebee 1.1.2.1
74 cananian 1.2 }