soot.dexpler.instructions.IputInstruction Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of soot Show documentation
A Java Optimization Framework
There is a newer version: 4.6.0
package soot.dexpler.instructions;

/*-
 * #%L
 * Soot - a J*va 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 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 org.jf.dexlib2.iface.instruction.Instruction;
import org.jf.dexlib2.iface.instruction.ReferenceInstruction;
import org.jf.dexlib2.iface.instruction.TwoRegisterInstruction;
import org.jf.dexlib2.iface.reference.FieldReference;

import soot.Local;
import soot.Type;
import soot.dexpler.DexBody;
import soot.dexpler.DexType;
import soot.dexpler.IDalvikTyper;
import soot.dexpler.typing.DalvikTyper;
import soot.jimple.AssignStmt;
import soot.jimple.InstanceFieldRef;
import soot.jimple.Jimple;

public class IputInstruction extends FieldInstruction {

  public IputInstruction(Instruction instruction, int codeAdress) {
    super(instruction, codeAdress);
  }

  @Override
  public void jimplify(DexBody body) {
    TwoRegisterInstruction i = (TwoRegisterInstruction) instruction;
    int source = i.getRegisterA();
    int object = i.getRegisterB();
    FieldReference f = (FieldReference) ((ReferenceInstruction) instruction).getReference();
    InstanceFieldRef instanceField = Jimple.v().newInstanceFieldRef(body.getRegisterLocal(object), getSootFieldRef(f));
    Local sourceValue = body.getRegisterLocal(source);
    AssignStmt assign = getAssignStmt(body, sourceValue, instanceField);
    setUnit(assign);
    addTags(assign);
    body.add(assign);

    if (IDalvikTyper.ENABLE_DVKTYPER) {
      // Debug.printDbg(IDalvikTyper.DEBUG, "constraint: "+ assign);
      DalvikTyper.v().setType(assign.getRightOpBox(), instanceField.getType(), true);
    }
  }

  @Override
  protected Type getTargetType(DexBody body) {
    FieldReference f = (FieldReference) ((ReferenceInstruction) instruction).getReference();
    return DexType.toSoot(f.getType());
  }
}