1 salcianu 1.1 // EventDrivenTransformation.java, created Sat Apr 12 17:18:22 2003 by salcianu
2 salcianu 1.1 // Copyright (C) 2003 Alexandru Salcianu <salcianu@MIT.EDU>
3 salcianu 1.1 // Licensed under the terms of the GNU GPL; see COPYING for details.
4 salcianu 1.1 package harpoon.Main;
5 salcianu 1.1
6 salcianu 1.1 import harpoon.ClassFile.HCode;
7 salcianu 1.1 import harpoon.ClassFile.HMethod;
8 salcianu 1.1 import harpoon.ClassFile.CachingCodeFactory;
9 salcianu 1.1
10 salcianu 1.1 import harpoon.Analysis.Quads.QuadClassHierarchy;
11 salcianu 1.1
12 salcianu 1.1 import harpoon.Analysis.MetaMethods.MetaCallGraph;
13 salcianu 1.1 import harpoon.Analysis.MetaMethods.MetaCallGraphImpl;
14 salcianu 1.1
15 salcianu 1.1 import harpoon.Analysis.EventDriven.EventDriven;
16 salcianu 1.1
17 salcianu 1.1 import harpoon.Util.Options.Option;
18 salcianu 1.1
19 salcianu 1.1 import java.util.Iterator;
20 salcianu 1.1 import java.util.Set;
21 salcianu 1.1 import java.util.HashSet;
22 salcianu 1.1 import java.util.List;
23 salcianu 1.1 import java.util.LinkedList;
24 salcianu 1.1 import java.util.Collection;
25 salcianu 1.1
26 salcianu 1.1 /**
27 salcianu 1.1 * <code>EventDrivenTransformation</code>
28 salcianu 1.1 *
29 salcianu 1.1 * @author Alexandru Salcianu <salcianu@MIT.EDU>
30 salcianu 1.2 * @version $Id: EventDrivenTransformation.java,v 1.2 2003/04/22 00:09:57 salcianu Exp $
31 salcianu 1.1 */
32 salcianu 1.1 public abstract class EventDrivenTransformation {
33 salcianu 1.1
34 salcianu 1.1 static boolean EVENTDRIVEN = false;
35 salcianu 1.1 private static MetaCallGraph mcg = null;
36 salcianu 1.1 private static boolean recycle = false;
37 salcianu 1.1 private static boolean optimistic = false;
38 salcianu 1.1
39 salcianu 1.1 private static boolean _enabled() { return EVENTDRIVEN; }
40 salcianu 1.1
41 salcianu 1.1 private static List/*<Option>*/ getOptions() {
42 salcianu 1.1 List/*<Option>*/ opts = new LinkedList/*<Option>*/();
43 salcianu 1.1 opts.add(new Option("E", "Event Driven transformation") {
44 salcianu 1.1 public void action() { EVENTDRIVEN = true; }
45 salcianu 1.1 });
46 salcianu 1.1 opts.add(new Option("p", "Optimistic option for EventDriven") {
47 salcianu 1.1 public void action() { optimistic = true; }
48 salcianu 1.1 });
49 salcianu 1.1 opts.add(new Option("f",
50 salcianu 1.1 "Recycle option for EventDriven. " +
51 salcianu 1.1 "Environmentally (f)riendly") {
52 salcianu 1.1 public void action() { recycle = true; }
53 salcianu 1.1 });
54 salcianu 1.1 return opts;
55 salcianu 1.1 }
56 salcianu 1.1
57 salcianu 1.1 public static class QuadPass1 extends CompilerStageEZ {
58 salcianu 1.1 public QuadPass1() { super("event-driven-quad-pass-1"); }
59 salcianu 1.2 public boolean enabled() { return _enabled(); }
60 salcianu 1.1
61 salcianu 1.1 // Pass 1 returns the options for the entire transformation
62 salcianu 1.1 public List/*<Option>*/ getOptions() {
63 salcianu 1.1 return EventDrivenTransformation.getOptions();
64 salcianu 1.1 }
65 salcianu 1.1
66 salcianu 1.1 protected void real_action() {
67 salcianu 1.1 hcf = harpoon.IR.Quads.QuadNoSSA.codeFactory(hcf);
68 salcianu 1.1 Set mroots =
69 salcianu 1.1 extract_method_roots
70 salcianu 1.1 (frame.getRuntime().runtimeCallableMethods());
71 salcianu 1.1 mroots.add(mainM);
72 salcianu 1.1 mcg = new MetaCallGraphImpl
73 salcianu 1.1 (new CachingCodeFactory(hcf), linker, classHierarchy, mroots);
74 salcianu 1.1 }
75 salcianu 1.1
76 salcianu 1.1 // extract the method roots from the set of all the roots
77 salcianu 1.1 // (methods and classes)
78 salcianu 1.1 private Set extract_method_roots(Collection roots){
79 salcianu 1.1 Set mroots = new HashSet();
80 salcianu 1.1 for(Iterator it = roots.iterator(); it.hasNext(); ){
81 salcianu 1.1 Object obj = it.next();
82 salcianu 1.1 if(obj instanceof HMethod)
83 salcianu 1.1 mroots.add(obj);
84 salcianu 1.1 }
85 salcianu 1.1 return mroots;
86 salcianu 1.1 }
87 salcianu 1.1 };
88 salcianu 1.1
89 salcianu 1.1
90 salcianu 1.1 public static class QuadPass2 extends CompilerStageEZ {
91 salcianu 1.1 public QuadPass2() { super("event-driven-quad-pass-2"); }
92 salcianu 1.2 public boolean enabled() { return _enabled(); }
93 salcianu 1.1
94 salcianu 1.1 protected void real_action() {
95 salcianu 1.1 if (!SAMain.OPTIMIZE) {
96 salcianu 1.1 hcf = harpoon.IR.Quads.QuadSSI.codeFactory(hcf);
97 salcianu 1.1 }
98 salcianu 1.1 hcf = new CachingCodeFactory(hcf, true);
99 salcianu 1.1 HCode hc = hcf.convert(mainM);
100 salcianu 1.1 EventDriven ed =
101 salcianu 1.1 new EventDriven((CachingCodeFactory) hcf, hc,
102 salcianu 1.1 classHierarchy, linker, optimistic, recycle);
103 salcianu 1.1 mainM=ed.convert(mcg);
104 salcianu 1.1 mcg=null; /*Memory management*/
105 salcianu 1.1 hcf = new CachingCodeFactory(hcf);
106 salcianu 1.1 Set eroots = new java.util.HashSet
107 salcianu 1.1 (frame.getRuntime().runtimeCallableMethods());
108 salcianu 1.1 // and our main method is a root, too...
109 salcianu 1.1 eroots.add(mainM);
110 salcianu 1.1 hcf = new CachingCodeFactory(hcf);
111 salcianu 1.1 classHierarchy = new QuadClassHierarchy(linker, eroots, hcf);
112 salcianu 1.1 }
113 salcianu 1.1 };
114 salcianu 1.1
115 salcianu 1.1 }