soot.dava.toolkits.base.finders.SwitchNodeGraph Maven / Gradle / Ivy
package soot.dava.toolkits.base.finders;
/*-
* #%L
* Soot - a J*va Optimization Framework
* %%
* Copyright (C) 2003 Jerome Miecznikowski
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 2.1 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* .
* #L%
*/
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import soot.toolkits.graph.DirectedGraph;
class SwitchNodeGraph implements DirectedGraph {
private LinkedList body;
private final LinkedList heads, tails;
private final HashMap binding;
public SwitchNodeGraph(List body) {
this.body = new LinkedList();
this.body.addAll(body);
binding = new HashMap();
heads = new LinkedList();
tails = new LinkedList();
Iterator it = body.iterator();
while (it.hasNext()) {
SwitchNode sn = (SwitchNode) it.next();
binding.put(sn.get_AugStmt().bsuccs.get(0), sn);
sn.reset();
}
it = body.iterator();
while (it.hasNext()) {
((SwitchNode) it.next()).setup_Graph(binding);
}
it = body.iterator();
while (it.hasNext()) {
SwitchNode sn = (SwitchNode) it.next();
if (sn.get_Preds().isEmpty()) {
heads.add(sn);
}
if (sn.get_Succs().isEmpty()) {
tails.add(sn);
}
}
}
public int size() {
return body.size();
}
public List getHeads() {
return heads;
}
public List getTails() {
return tails;
}
public List getPredsOf(Object o) {
return ((SwitchNode) o).get_Preds();
}
public List getSuccsOf(Object o) {
return ((SwitchNode) o).get_Succs();
}
public Iterator iterator() {
return body.iterator();
}
public List getBody() {
return body;
}
}