115 lines
3.5 KiB
Java
115 lines
3.5 KiB
Java
/*
|
|
* This program and the accompanying materials
|
|
* are made available under the terms of the Eclipse Public License v1.0
|
|
* which accompanies this distribution, and is available at
|
|
* http://www.eclipse.org/legal/epl-v10.html.
|
|
*
|
|
* This file is a derivative of code released under the terms listed below.
|
|
*
|
|
*/
|
|
/*
|
|
*
|
|
* Copyright (c) 2009-2012,
|
|
*
|
|
* Adam Fuchs <afuchs@cs.umd.edu>
|
|
* Avik Chaudhuri <avik@cs.umd.edu>
|
|
* Steve Suh <suhsteve@gmail.com>
|
|
*
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* 3. The names of the contributors may not be used to endorse or promote
|
|
* products derived from this software without specific prior written
|
|
* permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
*
|
|
*/
|
|
|
|
package com.ibm.wala.dalvik.dex.instructions;
|
|
|
|
import org.jf.dexlib.Code.Opcode;
|
|
|
|
import com.ibm.wala.dalvik.classLoader.DexIMethod;
|
|
|
|
public class Switch extends Instruction {
|
|
|
|
public final int regA;
|
|
public final int tableAddressOffset;
|
|
public SwitchPad pad;
|
|
private int[] casesAndLabels;
|
|
private int defaultLabel;
|
|
|
|
public Switch(int instLoc, int regA, int tableAddressOffset, Opcode opcode, DexIMethod method)
|
|
{
|
|
super(instLoc, opcode, method);
|
|
this.regA = regA;
|
|
this.tableAddressOffset = tableAddressOffset;
|
|
}
|
|
|
|
public void setSwitchPad (SwitchPad pad)
|
|
{
|
|
this.pad = pad;
|
|
computeCasesAndLabels();
|
|
}
|
|
|
|
private void computeCasesAndLabels() {
|
|
casesAndLabels = pad.getLabelsAndOffsets();
|
|
for (int i = 1; i < casesAndLabels.length; i+=2)
|
|
casesAndLabels[i] = method.getInstructionIndex(pc+casesAndLabels[i]);
|
|
|
|
defaultLabel = method.getInstructionIndex(pc + pad.getDefaultOffset());
|
|
}
|
|
|
|
public int[] getOffsets()
|
|
{
|
|
return pad.getOffsets();
|
|
}
|
|
|
|
public int getDefaultLabel()
|
|
{
|
|
return defaultLabel;
|
|
}
|
|
|
|
public int[] getCasesAndLabels() {
|
|
return casesAndLabels;
|
|
}
|
|
|
|
@Override
|
|
public int[] getBranchTargets() {
|
|
int[] r = new int[casesAndLabels.length / 2 + 1];
|
|
r[0] = defaultLabel;
|
|
for (int i = 1; i < r.length; i++) {
|
|
r[i] = casesAndLabels[(i - 1) * 2 + 1];
|
|
}
|
|
return r;
|
|
}
|
|
|
|
@Override
|
|
public void visit(Visitor visitor)
|
|
{
|
|
visitor.visitSwitch(this);
|
|
}
|
|
|
|
}
|