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1
19
20 package soot.dava.toolkits.base.finders;
21
22 import java.util.*;
23 import soot.util.*;
24 import soot.dava.internal.asg.*;
25
26 public class SwitchNode implements Comparable 
27 {
28 private LinkedList preds, succs;
29 private AugmentedStmt as;
30 private int score;
31 private TreeSet indexSet;
32 private IterableSet body;
33
34 public SwitchNode( AugmentedStmt as, TreeSet indexSet, IterableSet body)
35 {
36 this.as = as;
37 this.indexSet = indexSet;
38 this.body = body;
39
40 preds = new LinkedList();
41 succs = new LinkedList();
42
43 score = -1;
44 }
45
46 public int get_Score()
47 {
48 if (score == -1) {
49 score = 0;
50
51 if (preds.size() < 2) {
52
53 Iterator sit = succs.iterator();
54 while (sit.hasNext()) {
55 SwitchNode ssn = (SwitchNode) sit.next();
56
57 int curScore = ssn.get_Score();
58 if (score < curScore)
59 score = curScore;
60 }
61
62 score++;
63 }
64 }
65
66 return score;
67 }
68
69 public List get_Preds()
70 {
71 return preds;
72 }
73
74 public List get_Succs()
75 {
76 return succs;
77 }
78
79 public AugmentedStmt get_AugStmt()
80 {
81 return as;
82 }
83
84 public TreeSet get_IndexSet()
85 {
86 return indexSet;
87 }
88
89 public IterableSet get_Body()
90 {
91 return body;
92 }
93
94 public SwitchNode reset()
95 {
96 preds.clear();
97 succs.clear();
98
99 return this;
100 }
101
102 public void setup_Graph( HashMap binding)
103 {
104 Iterator rit = ((AugmentedStmt) as.bsuccs.get(0)).get_Reachers().iterator();
105 while (rit.hasNext()) {
106 SwitchNode pred = (SwitchNode) binding.get( rit.next());
107
108 if (pred != null) {
109 if (preds.contains( pred) == false)
110 preds.add( pred);
111
112 if (pred.succs.contains( this) == false)
113 pred.succs.add( this);
114 }
115 }
116 }
117
118
119
122
123 public int compareTo( Object o)
124 {
125 if (o == this)
126 return 0;
127
128 if (indexSet.last() instanceof String )
129 return 1;
130
131 if (o instanceof String )
132 return -1;
133
134 if (o instanceof Integer )
135 return ((Integer ) indexSet.last()).intValue() - ((Integer ) o).intValue();
136
137 if (o instanceof TreeSet) {
138 TreeSet other = (TreeSet) o;
139
140 if (other.last() instanceof String )
141 return -1;
142
143 return ((Integer ) indexSet.last()).intValue() - ((Integer ) other.last()).intValue();
144 }
145
146 SwitchNode other = (SwitchNode) o;
147
148 if (other.indexSet.last() instanceof String )
149 return -1;
150
151 return ((Integer ) indexSet.last()).intValue() - ((Integer ) other.indexSet.last()).intValue();
152 }
153 }
154
155 |
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