1 package Analysis.Pointer;
3 import Analysis.Disjoint.PointerMethod;
4 import Analysis.Pointer.AllocFactory.AllocNode;
6 import IR.MethodDescriptor;
7 import java.io.PrintWriter;
10 /* This is field is set is this Graph is just a delta on the parent
14 HashMap<AllocNode, MySet<Edge>> nodeMap;
15 HashMap<TempDescriptor, MySet<Edge>> varMap;
16 HashMap<AllocNode, MySet<Edge>> backMap;
17 MySet<Edge> strongUpdateSet;
18 HashMap<AllocNode, MySet<Edge>> callNewEdges;
19 HashMap<Edge, MySet<Edge>> callOldEdges;
21 public void addCallEdge(Edge e) {
23 if ((eset=callNewEdges.get(e.src))==null) {
24 eset=new MySet<Edge>();
25 callNewEdges.put(e.src, eset);
27 if (eset.contains(e)) {
28 e=e.merge(eset.get(e));
32 if ((eset=callNewEdges.get(e.dst))==null) {
33 eset=new MySet<Edge>();
34 callNewEdges.put(e.dst, eset);
36 if (eset.contains(e)) {
37 e=e.merge(eset.get(e));
43 for(Map.Entry<AllocNode, MySet<Edge>> entry:nodeMap.entrySet()) {
44 AllocNode node=entry.getKey();
46 throw new Error("Null node key");
47 for(Edge e:entry.getValue())
51 for(Map.Entry<TempDescriptor, MySet<Edge>> entry:varMap.entrySet()) {
52 TempDescriptor tmp=entry.getKey();
54 throw new Error("Null tmp key");
55 for(Edge e:entry.getValue())
61 /* Need this information for mapping in callee results */
62 MySet<Edge> reachEdge;
63 HashSet<AllocNode> reachNode;
64 MySet<Edge> externalEdgeSet;
65 /* These edges were created by the caller */
66 MySet<Edge> callerEdges;
68 /* Need this information for mapping in callee results */
69 HashSet<AllocNode> nodeAges;
70 HashMap<AllocNode, Boolean> oldNodes;
72 /* Need this information for mapping in callee results */
73 HashSet<AllocNode> callNodeAges;
74 HashSet<AllocNode> callOldNodes;
75 HashSet<MethodDescriptor> callTargets;
77 public Graph(Graph parent) {
78 nodeMap=new HashMap<AllocNode, MySet<Edge>>();
79 varMap=new HashMap<TempDescriptor, MySet<Edge>>();
80 nodeAges=new HashSet<AllocNode>();
81 oldNodes=new HashMap<AllocNode, Boolean>();
85 public MySet<Edge> getBackEdges(AllocNode node) {
86 MySet<Edge> edgeset=new MySet<Edge>();
87 edgeset.addAll(backMap.get(node));
88 edgeset.addAll(parent.backMap.get(node));
92 public boolean containsNode(AllocNode node) {
93 return nodeAges.contains(node)||parent!=null&&parent.nodeAges.contains(node);
96 public Edge getMatch(Edge old) {
97 if (old.srcvar!=null) {
98 MySet<Edge> edges=varMap.get(old.srcvar);
100 edges=parent.varMap.get(old.srcvar);
103 return edges.get(old);
105 MySet<Edge> edges=nodeMap.get(old.src);
107 edges=parent.nodeMap.get(old.src);
110 return edges.get(old);
114 public MySet<Edge> getEdges(TempDescriptor tmp) {
115 if (varMap.containsKey(tmp))
116 return varMap.get(tmp);
117 else if (parent!=null&&parent.varMap.containsKey(tmp))
118 return parent.varMap.get(tmp);
119 else return emptySet;
122 public MySet<Edge> getEdges(AllocNode node) {
123 if (nodeMap.containsKey(node))
124 return nodeMap.get(node);
125 else if (parent!=null&&parent.nodeMap.containsKey(node))
126 return parent.nodeMap.get(node);
127 else return emptySet;
130 public static MySet<Edge> emptySet=new MySet<Edge>(true);
132 public void printGraph(PrintWriter output, String name) {
133 output.println("digraph \""+name+"\" {");
134 output.println("\tnode [fontsize=10,height=\"0.1\", width=\"0.1\"];");
135 output.println("\tedge [fontsize=6];");
136 outputTempEdges(output, varMap, null);
138 outputTempEdges(output, parent.varMap, varMap);
139 outputHeapEdges(output, nodeMap, null);
141 outputHeapEdges(output, parent.nodeMap, nodeMap);
142 output.println("}\n");
145 private void outputTempEdges(PrintWriter output, HashMap<TempDescriptor, MySet<Edge>> varMap,
146 HashMap<TempDescriptor, MySet<Edge>> childvarMap) {
147 for(Map.Entry<TempDescriptor, MySet<Edge>> entry:varMap.entrySet()) {
148 TempDescriptor tmp=entry.getKey();
149 if (childvarMap!=null&&childvarMap.containsKey(tmp))
151 output.println(tmp.getSymbol()+"[shape=rectangle];");
152 for(Edge e:entry.getValue()) {
154 throw new Error(e.srcvar +" is not equal to "+tmp);
156 output.println("\t"+tmp.getSymbol()+"->"+n.getID()+"[label=\""+e.taintString()+"\"];");
161 private void outputHeapEdges(PrintWriter output, HashMap<AllocNode, MySet<Edge>> nodeMap,
162 HashMap<AllocNode, MySet<Edge>> childNodeMap) {
163 for(Map.Entry<AllocNode, MySet<Edge>> entry:nodeMap.entrySet()) {
164 AllocNode node=entry.getKey();
165 if (childNodeMap!=null&&childNodeMap.containsKey(node))
167 for(Edge e:entry.getValue()) {
169 throw new Error(e.src+" is not equal to "+node);
171 String src=node.getID();
172 String dst=n.getID();
173 String field=e.fd!=null?e.fd.getSymbol():"[]";
174 String taint=e.taints!=null?":"+e.taintString():"";
175 output.println("\t"+src+"->"+dst+"[label=\""+field+" "+taint+"\"];");