import IR.Descriptor;
import IR.FieldDescriptor;
import IR.MethodDescriptor;
-import IR.NameDescriptor;
import IR.VarDescriptor;
public class FlowGraph {
MethodDescriptor md;
- Set<FlowNode> nodeSet;
Set<FlowNode> returnNodeSet;
FlowNode thisVarNode;
+ Map<FlowNode, Set<FlowEdge>> mapFlowNodeToOutEdgeSet;
+
Map<NTuple<Location>, FlowNode> mapLocTupleToFlowNode;
Map<FlowNode, NTuple<Location>> mapFlowNodeToLocTuple;
// maps the composite representation of field/var descriptors to infer nodes
Map<NTuple<Descriptor>, FlowNode> mapDescTupleToInferNode;
- // maps an infer node to the set of neighbors which is pointed by the node
- Map<NTuple<Descriptor>, Set<FlowNode>> mapNodeToNeighborSet;
-
// maps a paramter descriptor to its index
Map<Descriptor, Integer> mapParamDescToIdx;
+ // DS for the lattice generation
Map<Integer, FlowNode> mapIdxToFlowNode;
public static int interseed = 0;
this.md = md;
this.mapFlowNodeToLocTuple = new HashMap<FlowNode, NTuple<Location>>();
this.mapLocTupleToFlowNode = new HashMap<NTuple<Location>, FlowNode>();
- this.nodeSet = new HashSet<FlowNode>();
this.mapDescTupleToInferNode = new HashMap<NTuple<Descriptor>, FlowNode>();
- this.mapNodeToNeighborSet = new HashMap<NTuple<Descriptor>, Set<FlowNode>>();
this.mapParamDescToIdx = new HashMap<Descriptor, Integer>();
this.mapParamDescToIdx.putAll(mapParamDescToIdx);
this.returnNodeSet = new HashSet<FlowNode>();
this.mapIdxToFlowNode = new HashMap<Integer, FlowNode>();
+ this.mapFlowNodeToOutEdgeSet = new HashMap<FlowNode, Set<FlowEdge>>();
if (!md.isStatic()) {
// create a node for 'this' varialbe
}
+ public Map<NTuple<Descriptor>, FlowNode> getMapDescTupleToInferNode() {
+ return mapDescTupleToInferNode;
+ }
+
+ public void setMapDescTupleToInferNode(Map<NTuple<Descriptor>, FlowNode> in) {
+ this.mapDescTupleToInferNode.putAll(in);
+ }
+
+ public Map<NTuple<Location>, FlowNode> getMapLocTupleToFlowNode() {
+ return mapLocTupleToFlowNode;
+ }
+
+ public void setMapLocTupleToFlowNode(Map<NTuple<Location>, FlowNode> in) {
+ this.mapLocTupleToFlowNode.putAll(in);
+ }
+
+ public void setReturnNodeSet(Set<FlowNode> in) {
+ this.returnNodeSet.addAll(in);
+ }
+
+ public void setThisVarNode(FlowNode thisVarNode) {
+ this.thisVarNode = thisVarNode;
+ }
+
public Map<Descriptor, Integer> getMapParamDescToIdx() {
return mapParamDescToIdx;
}
newNode.setIntermediate(true);
mapDescTupleToInferNode.put(tuple, newNode);
- nodeSet.add(newNode);
+ // nodeSet.add(newNode);
System.out.println("create new intermediate node= " + newNode);
}
public Set<FlowNode> getNodeSet() {
- return nodeSet;
+ Set<FlowNode> set = new HashSet<FlowNode>();
+ set.addAll(mapDescTupleToInferNode.values());
+ return set;
}
public MethodDescriptor getMethodDescriptor() {
return md;
}
- public void addNeighbor(FlowNode node, FlowNode neighbor) {
- Set<FlowNode> set = mapNodeToNeighborSet.get(node);
- if (set == null) {
- set = new HashSet<FlowNode>();
- }
- set.add(neighbor);
-
- // System.out.println("add a new neighbor " + neighbor + " to " + node);
- }
-
public boolean isParamDesc(Descriptor desc) {
if (mapParamDescToIdx.containsKey(desc)) {
FlowNode fromNode = mapDescTupleToInferNode.get(fromDescTuple);
FlowNode toNode = mapDescTupleToInferNode.get(toDescTuple);
- Set<FlowEdge> fromNodeOutEdgeSet = fromNode.getOutEdgeSet();
+ Set<FlowEdge> fromNodeOutEdgeSet = getOutEdgeSet(fromNode);
for (Iterator iterator = fromNodeOutEdgeSet.iterator(); iterator.hasNext();) {
FlowEdge flowEdge = (FlowEdge) iterator.next();
if (flowEdge.getDst().equals(toNode)) {
return false;
}
+ public Set<FlowEdge> getOutEdgeSetStartingFrom(FlowNode startNode) {
+
+ Descriptor prefixDesc = startNode.getCurrentDescTuple().get(0);
+
+ // returns the set of edges that share the same prefix of startNode
+ Set<FlowEdge> edgeSet = new HashSet<FlowEdge>();
+
+ for (Iterator<Set<FlowEdge>> iter = mapFlowNodeToOutEdgeSet.values().iterator(); iter.hasNext();) {
+ Set<FlowEdge> nodeEdgeSet = iter.next();
+ for (Iterator<FlowEdge> iter2 = nodeEdgeSet.iterator(); iter2.hasNext();) {
+ FlowEdge edge = iter2.next();
+ if (edge.getInitTuple().get(0).equals(prefixDesc)) {
+ edgeSet.add(edge);
+ }
+ }
+ }
+
+ return edgeSet;
+ }
+
+ public Set<FlowEdge> getOutEdgeSet(FlowNode node) {
+ if (!mapFlowNodeToOutEdgeSet.containsKey(node)) {
+ mapFlowNodeToOutEdgeSet.put(node, new HashSet<FlowEdge>());
+ }
+ return mapFlowNodeToOutEdgeSet.get(node);
+ }
+
public void addValueFlowEdge(NTuple<Descriptor> fromDescTuple, NTuple<Descriptor> toDescTuple) {
FlowNode fromNode = getFlowNode(fromDescTuple);
FlowNode toNode = getFlowNode(toDescTuple);
- System.out.println("create an edge from " + fromNode + " to " + toNode);
+ // System.out.println("create an edge from " + fromNode + " to " + toNode);
int fromTupleSize = fromDescTuple.size();
NTuple<Descriptor> curFromTuple = new NTuple<Descriptor>();
NTuple<Descriptor> endTuple) {
FlowEdge edge = new FlowEdge(fromNode, toNode, initTuple, endTuple);
- fromNode.addOutEdge(edge);
+ addOutEdge(fromNode, edge);
+
+ // System.out.println("add a new edge=" + edge);
+ }
- System.out.println("add a new edge=" + edge);
+ private void addOutEdge(FlowNode fromNode, FlowEdge edge) {
+ if (!mapFlowNodeToOutEdgeSet.containsKey(fromNode)) {
+ mapFlowNodeToOutEdgeSet.put(fromNode, new HashSet<FlowEdge>());
+ }
+ mapFlowNodeToOutEdgeSet.get(fromNode).add(edge);
}
public FlowNode getFlowNode(NTuple<Descriptor> descTuple) {
if (!mapDescTupleToInferNode.containsKey(tuple)) {
FlowNode node = new FlowNode(tuple);
mapDescTupleToInferNode.put(tuple, node);
- nodeSet.add(node);
+ // nodeSet.add(node);
mapLocTupleToFlowNode.put(getLocationTuple(node), node);
private void recurLocalReachFlowNodeSet(FlowNode fn, Set<FlowNode> visited) {
- for (Iterator iterator = fn.getOutEdgeSet().iterator(); iterator.hasNext();) {
+ Set<FlowEdge> outEdgeSet = getOutEdgeSet(fn);
+ for (Iterator iterator = outEdgeSet.iterator(); iterator.hasNext();) {
FlowEdge edge = (FlowEdge) iterator.next();
FlowNode dstNode = edge.getDst();
private void getReachFlowNodeSetFrom(FlowNode fn, Set<FlowNode> visited) {
- for (Iterator iterator = fn.getOutEdgeSet().iterator(); iterator.hasNext();) {
+ Set<FlowEdge> outEdgeSet = getOutEdgeSet(fn);
+ for (Iterator iterator = outEdgeSet.iterator(); iterator.hasNext();) {
FlowEdge edge = (FlowEdge) iterator.next();
if (fn.equals(getFlowNode(edge.getInitTuple()))) {
// }
public Set<NTuple<Location>> getReachableFlowTupleSet(Set<NTuple<Location>> visited, FlowNode fn) {
- for (Iterator iterator = fn.getOutEdgeSet().iterator(); iterator.hasNext();) {
+
+ Set<FlowEdge> outEdgeSet = getOutEdgeSet(fn);
+
+ for (Iterator iterator = outEdgeSet.iterator(); iterator.hasNext();) {
FlowEdge edge = (FlowEdge) iterator.next();
if (fn.getDescTuple().equals(edge.getInitTuple())) {
} else {
loc = new Location(cd, curDesc.getSymbol());
loc.setLocDescriptor(curDesc);
- cd = ((FieldDescriptor) curDesc).getType().getClassDesc();
+
+ if (curDesc instanceof FieldDescriptor) {
+ cd = ((FieldDescriptor) curDesc).getType().getClassDesc();
+ } else {
+ cd = ((LocationDescriptor) curDesc).getEnclosingClassDesc();
+ }
+
}
locTuple.add(loc);
}
public void getIncomingFlowNodeSet(FlowNode node, Set<FlowNode> visited) {
- for (Iterator iterator = nodeSet.iterator(); iterator.hasNext();) {
+ for (Iterator iterator = getNodeSet().iterator(); iterator.hasNext();) {
FlowNode curNode = (FlowNode) iterator.next();
- Set<FlowEdge> edgeSet = curNode.getOutEdgeSet();
+ Set<FlowEdge> edgeSet = getOutEdgeSet(curNode);
for (Iterator iterator2 = edgeSet.iterator(); iterator2.hasNext();) {
FlowEdge flowEdge = (FlowEdge) iterator2.next();
ClassDescriptor cd = null;
- for (Iterator iterator = nodeSet.iterator(); iterator.hasNext();) {
+ for (Iterator iterator = getNodeSet().iterator(); iterator.hasNext();) {
FlowNode node = (FlowNode) iterator.next();
- Set<FlowEdge> edgeSet = node.getOutEdgeSet();
+
+ Set<FlowEdge> edgeSet = getOutEdgeSet(node);
for (Iterator iterator2 = edgeSet.iterator(); iterator2.hasNext();) {
FlowEdge flowEdge = (FlowEdge) iterator2.next();
if (dstTuple.equals(flowEdge.getEndTuple())) {
return mapParamDescToIdx.containsKey(firstIdxDesc);
}
+ public int getParamIdx(NTuple<Descriptor> tuple) {
+ Descriptor firstIdxDesc = tuple.get(0);
+ return mapParamDescToIdx.get(firstIdxDesc);
+ }
+
+ public FlowGraph clone() {
+ FlowGraph clone = new FlowGraph(md, mapParamDescToIdx);
+
+ // clone.setNodeSet(getNodeSet());
+ clone.setMapLocTupleToFlowNode(getMapLocTupleToFlowNode());
+ clone.setMapFlowNodeToLocTuple(getMapFlowNodeToLocTuple());
+ clone.setMapDescTupleToInferNode(getMapDescTupleToInferNode());
+
+ clone.setMapFlowNodeToOutEdgeSet(getMapFlowNodeToOutEdgeSet());
+ clone.setReturnNodeSet(getReturnNodeSet());
+ clone.setThisVarNode(getThisVarNode());
+
+ return clone;
+ }
+
+ public Map<FlowNode, NTuple<Location>> getMapFlowNodeToLocTuple() {
+ return mapFlowNodeToLocTuple;
+ }
+
+ public void setMapFlowNodeToLocTuple(Map<FlowNode, NTuple<Location>> in) {
+ this.mapFlowNodeToLocTuple.putAll(in);
+ }
+
+ public Map<FlowNode, Set<FlowEdge>> getMapFlowNodeToOutEdgeSet() {
+ return mapFlowNodeToOutEdgeSet;
+ }
+
+ public void setMapFlowNodeToOutEdgeSet(Map<FlowNode, Set<FlowEdge>> inMap) {
+ Set<FlowNode> keySet = inMap.keySet();
+ for (Iterator iterator = keySet.iterator(); iterator.hasNext();) {
+ FlowNode key = (FlowNode) iterator.next();
+ Set<FlowEdge> newEdgeSet = new HashSet<FlowEdge>();
+ newEdgeSet.addAll(inMap.get(key));
+ mapFlowNodeToOutEdgeSet.put(key, newEdgeSet);
+ }
+ }
+
private void drawEdges(FlowNode node, BufferedWriter bw, Set<FlowNode> addedNodeSet,
Set<FlowEdge> addedEdgeSet) throws IOException {
- Set<FlowEdge> edgeSet = node.getOutEdgeSet();
+ Set<FlowEdge> edgeSet = getOutEdgeSet(node);
for (Iterator<FlowEdge> iterator = edgeSet.iterator(); iterator.hasNext();) {
FlowEdge flowEdge = iterator.next();
}
public void writeGraph() throws java.io.IOException {
+ writeGraph("");
+ }
+
+ public void writeGraph(String suffix) throws java.io.IOException {
- String graphName = "flowgraph_" + md.toString();
+ String graphName = "flowgraph_" + md.toString() + suffix;
graphName = graphName.replaceAll("[\\W]", "");
BufferedWriter bw = new BufferedWriter(new FileWriter(graphName + ".dot"));
// then visit every flow node
- Iterator<FlowNode> iter = nodeSet.iterator();
+ // Iterator<FlowNode> iter = nodeSet.iterator();
+ Iterator<FlowNode> iter = getNodeSet().iterator();
Set<FlowEdge> addedEdgeSet = new HashSet<FlowEdge>();
Set<FlowNode> addedNodeSet = new HashSet<FlowNode>();
}
public boolean constainsNode(FlowNode node) {
- return nodeSet.contains(node);
+ return getNodeSet().contains(node);
}
private void drawSubgraph(FlowNode node, BufferedWriter bw, Set<FlowEdge> addedSet)
projects / IRC.git / blobdiff