/* Soot - a J*va Optimization Framework
* Copyright (C) 2003 Jennifer Lhotak
*
* This library 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 library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
package soot.jimple.toolkits.callgraph;
import soot.*;
import java.util.*;
import soot.toolkits.graph.*;
import soot.toolkits.scalar.*;
public class ClinitElimTransformer extends BodyTransformer {
protected void internalTransform(Body b, String phaseName, Map options){
ClinitElimAnalysis a = new ClinitElimAnalysis( new BriefUnitGraph(b));
CallGraph cg = Scene.v().getCallGraph();
SootMethod m = b.getMethod();
Iterator edgeIt = cg.edgesOutOf(m);
while (edgeIt.hasNext()){
Edge e = (Edge)edgeIt.next();
if (e.srcStmt() == null) continue;
if (!e.isClinit()) continue;
FlowSet methods = (FlowSet) a.getFlowBefore(e.srcStmt());
if (methods.contains(e.tgt())){
cg.removeEdge(e);
}
}
}
}