/* 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.annotation;
import soot.*;
import java.util.*;
import soot.toolkits.graph.*;
import soot.jimple.*;
import soot.options.*;
import soot.jimple.toolkits.pointer.*;
import soot.jimple.toolkits.scalar.*;
/** A body transformer that records avail expression
* information in tags. - both pessimistic and optimistic options*/
public class AvailExprTagger extends BodyTransformer
{
public AvailExprTagger( Singletons.Global g ) {}
public static AvailExprTagger v() { return G.v().soot_jimple_toolkits_annotation_AvailExprTagger(); }
protected void internalTransform(
Body b, String phaseName, Map opts)
{
SideEffectTester sideEffect;
if( Scene.v().hasCallGraph()
&& !PhaseOptions.getBoolean( opts, "naive-side-effect" ) ) {
sideEffect = new PASideEffectTester();
}
else {
sideEffect = new NaiveSideEffectTester();
}
sideEffect.newMethod( b.getMethod() );
AETOptions options = new AETOptions(opts);
if (options.kind() == AETOptions.kind_optimistic){
new SlowAvailableExpressionsAnalysis(new ExceptionalUnitGraph(b));
}
else {
new PessimisticAvailableExpressionsAnalysis(new ExceptionalUnitGraph(b), b.getMethod(), sideEffect);
}
}
}