/* Soot - a Java Optimization Framework
 * Copyright (C) 2012 Michael Markert, Frank Hartmann
 * 
 * (c) 2012 University of Luxembourg - Interdisciplinary Centre for
 * Security Reliability and Trust (SnT) - All rights reserved
 * Alexandre Bartel
 * 
 *
 * 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.dexpler.instructions;

import org.jf.dexlib2.iface.instruction.Instruction;
import org.jf.dexlib2.iface.instruction.formats.Instruction11x;

import soot.Local;
import soot.dexpler.Debug;
import soot.dexpler.DexBody;
import soot.dexpler.IDalvikTyper;
import soot.dexpler.typing.DalvikTyper;
import soot.jimple.Jimple;
import soot.jimple.ReturnStmt;

public class ReturnInstruction extends DexlibAbstractInstruction {

    ReturnStmt returnStmt = null;
  
    public ReturnInstruction (Instruction instruction, int codeAdress) {
        super(instruction, codeAdress);
    }

    public void jimplify (DexBody body) {
        Instruction11x returnInstruction = (Instruction11x) this.instruction;
        Local l = body.getRegisterLocal(returnInstruction.getRegisterA());
        returnStmt = Jimple.v().newReturnStmt(l);
        setUnit(returnStmt);
        addTags(returnStmt);
        body.add(returnStmt);
		
        if (IDalvikTyper.ENABLE_DVKTYPER) {
			Debug.printDbg(IDalvikTyper.DEBUG, "constraint: "+ returnStmt);
          DalvikTyper.v().setType(returnStmt.getOpBox(), body.getBody().getMethod().getReturnType(), true);
        }
    }
}

/* Soot - a Java Optimization Framework
 * Copyright (C) 2012 Michael Markert, Frank Hartmann
 * 
 * (c) 2012 University of Luxembourg - Interdisciplinary Centre for
 * Security Reliability and Trust (SnT) - All rights reserved
 * Alexandre Bartel
 * 
 *
 * 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.dexpler.instructions;

import org.jf.dexlib2.iface.instruction.Instruction;
import org.jf.dexlib2.iface.instruction.formats.Instruction11x;

import soot.Local;
import soot.dexpler.Debug;
import soot.dexpler.DexBody;
import soot.dexpler.IDalvikTyper;
import soot.dexpler.typing.DalvikTyper;
import soot.jimple.Jimple;
import soot.jimple.ReturnStmt;

public class ReturnInstruction extends DexlibAbstractInstruction {

    ReturnStmt returnStmt = null;
  
    public ReturnInstruction (Instruction instruction, int codeAdress) {
        super(instruction, codeAdress);
    }

    public void jimplify (DexBody body) {
        Instruction11x returnInstruction = (Instruction11x) this.instruction;
        Local l = body.getRegisterLocal(returnInstruction.getRegisterA());
        returnStmt = Jimple.v().newReturnStmt(l);
        setUnit(returnStmt);
        addTags(returnStmt);
        body.add(returnStmt);
		
        if (IDalvikTyper.ENABLE_DVKTYPER) {

			Debug.printDbg(IDalvikTyper.DEBUG, "return constraint: " + returnStmt);
			//DalvikTyper.v().addConstraint(returnStmt.getOpBox(), new ImmediateBox(Jimple.body.getBody().getMethod().getReturnType()));
			DalvikTyper.v().setType(returnStmt.getOpBox(), body.getBody().getMethod().getReturnType(), true);
        }
    }
}

Add constraint for return instruction