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PredicateSliceInterestCollector.java

package edu.ksu.cis.bandera.specification.predicate;

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Bandera, a Java(TM) analysis and transformation toolkit           *
 * Copyright (C) 2000   Robby (robby@cis.ksu.edu)                    *
 * All rights reserved.                                              *
 *                                                                   *
 * This work was done as a project in the SAnToS Laboratory,         *
 * Department of Computing and Information Sciences, Kansas State    *
 * University, USA (http://www.cis.ksu.edu/santos).                  *
 * It is understood that any modification not identified as such is  *
 * not covered by the preceding statement.                           *
 *                                                                   *
 * This work is free software; you can redistribute it and/or        *
 * modify it under the terms of the GNU Library General Public       *
 * License as published by the Free Software Foundation; either      *
 * version 2 of the License, or (at your option) any later version.  *
 *                                                                   *
 * This work 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 *
 * Library General Public License for more details.                  *
 *                                                                   *
 * You should have received a copy of the GNU Library General Public *
 * License along with this toolkit; if not, write to the             *
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,      *
 * Boston, MA  02111-1307, USA.                                      *
 *                                                                   *
 * Java is a trademark of Sun Microsystems, Inc.                     *
 *                                                                   *
 * To submit a bug report, send a comment, or get the latest news on *
 * this project and other SAnToS projects, please visit the web-site *
 *                http://www.cis.ksu.edu/santos                      *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
import edu.ksu.cis.bandera.jjjc.symboltable.*;
import edu.ksu.cis.bandera.pdgslicer.datastructure.*;
import edu.ksu.cis.bandera.annotation.*;
import edu.ksu.cis.bandera.jjjc.*;
import ca.mcgill.sable.soot.*;
import ca.mcgill.sable.soot.jimple.*;
import java.util.*;
import edu.ksu.cis.bandera.specification.predicate.datastructure.*;

public class PredicateSliceInterestCollector {
    private static HashSet sliceInterests;
/**
 * 
 * @return java.util.Collection
 * @param predicates java.util.Collection
 */
public static Collection collect(Collection predicates) {
    Jimple jimple = Jimple.v();
    sliceInterests = new HashSet();
    for (Iterator i = predicates.iterator(); i.hasNext();) {
        Predicate p = (Predicate) i.next();

        try {
            Annotation a = p.getAnnotation();
            if (a instanceof LabeledStmtAnnotation) {
                a = CompilationManager.getAnnotationManager().getMethodAnnotationContainingAnnotation(a);
            }
            SootClass sc = CompilationManager.getSootClassManager().getClass(p.getType().getName().toString());
            SootMethod sm = null;
            if (a != null) {
                Stmt[] stmts = p.getAnnotation().getStatements();
                sm = (a instanceof MethodDeclarationAnnotation) ?
                        ((MethodDeclarationAnnotation) a).getSootMethod() :
                        ((ConstructorDeclarationAnnotation) a).getSootMethod();
                if (p instanceof ReturnPredicate) {
                    for (int k = 0; k < stmts.length; k++) {
                        if ((stmts[k] instanceof ReturnStmt) || ((stmts[k] instanceof ReturnVoidStmt))) {
                            int sind = SlicePoint.getStmtIndex(sm,(Stmt) stmts[k]);
                            sliceInterests.add(new SlicePoint(sc, sm, stmts[k],sind));
                            if (((ReturnPredicate) p).hasRet()) {
                                sliceInterests.add(new SliceLocal(sc, sm, (Local) ((ReturnStmt) stmts[k]).getReturnValue()));
                            }
                        }
                    }
                } else {
                    int sind = SlicePoint.getStmtIndex(sm,(Stmt) stmts[0]);
                    sliceInterests.add(new SlicePoint(sc, sm, stmts[0],sind));
                }
            }
            if (p.getConstraint() != null) {
                for (Enumeration e = p.getVariablesUsed().elements(); e.hasMoreElements();) {
                    Object o = e.nextElement();
                    if (o instanceof Local) {
                        sliceInterests.add(new SliceLocal(sc, sm, (Local) o));
                    } else if (o instanceof Field) {
                        try {
                            SootClass sootClass = CompilationManager.getSootClassManager().getClass(((Field) o).getDeclaringClassOrInterface().getName().toString());
                            SootField sf = sootClass.getField(((Field) o).getName().toString());
                            sliceInterests.add(new SliceField(sootClass, sf));
                        } catch (Exception ex) {}
                    } else if ("this".equals(o)) {
                        if (sm != null) {
                            try {
                                Local l = ((JimpleBody) sm.getBody(jimple)).getLocal("JJJCTEMP$0");
                                sliceInterests.add(new SliceLocal(sc, sm, l));
                            } catch (Exception ex) {}
                        }
                    }
                }
            }
        } catch (Exception exc) {}
    }
    return sliceInterests;
}
}

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