/* * [The "BSD licence"] * Copyright (c) 2010 Ben Gruver (JesusFreke) * 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 name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 org.jf.baksmali.Adaptors.Format; import org.jf.baksmali.Adaptors.LabelMethodItem; import org.jf.baksmali.Adaptors.MethodDefinition; import org.jf.util.IndentingWriter; import org.jf.baksmali.Renderers.IntegerRenderer; import org.jf.dexlib.Code.Format.PackedSwitchDataPseudoInstruction; import org.jf.dexlib.CodeItem; import java.io.IOException; import java.util.ArrayList; import java.util.Iterator; import java.util.List; public class PackedSwitchMethodItem extends InstructionMethodItem<PackedSwitchDataPseudoInstruction> { private final List<PackedSwitchTarget> targets; public PackedSwitchMethodItem(MethodDefinition methodDefinition, CodeItem codeItem, int codeAddress, PackedSwitchDataPseudoInstruction instruction) { super(codeItem, codeAddress, instruction); int baseCodeAddress = methodDefinition.getPackedSwitchBaseAddress(codeAddress); targets = new ArrayList<PackedSwitchTarget>(); Iterator<PackedSwitchDataPseudoInstruction.PackedSwitchTarget> iterator = instruction.iterateKeysAndTargets(); if (baseCodeAddress >= 0) { while (iterator.hasNext()) { PackedSwitchDataPseudoInstruction.PackedSwitchTarget target = iterator.next(); PackedSwitchLabelTarget packedSwitchLabelTarget = new PackedSwitchLabelTarget(); LabelMethodItem label = new LabelMethodItem(baseCodeAddress + target.targetAddressOffset, "pswitch_"); label = methodDefinition.getLabelCache().internLabel(label); packedSwitchLabelTarget.Target = label; targets.add(packedSwitchLabelTarget); } } else { while (iterator.hasNext()) { PackedSwitchDataPseudoInstruction.PackedSwitchTarget target = iterator.next(); PackedSwitchOffsetTarget packedSwitchOffsetTarget = new PackedSwitchOffsetTarget(); packedSwitchOffsetTarget.Target = target.targetAddressOffset; targets.add(packedSwitchOffsetTarget); } } } @Override public boolean writeTo(IndentingWriter writer) throws IOException { writer.write(".packed-switch "); IntegerRenderer.writeTo(writer, instruction.getFirstKey()); writer.indent(4); writer.write('\n'); for (PackedSwitchTarget target: targets) { target.writeTargetTo(writer); writer.write('\n'); } writer.deindent(4); writer.write(".end packed-switch"); return true; } private static abstract class PackedSwitchTarget { public abstract void writeTargetTo(IndentingWriter writer) throws IOException; } private static class PackedSwitchLabelTarget extends PackedSwitchTarget { public LabelMethodItem Target; public void writeTargetTo(IndentingWriter writer) throws IOException { Target.writeTo(writer); } } private static class PackedSwitchOffsetTarget extends PackedSwitchTarget { public int Target; public void writeTargetTo(IndentingWriter writer) throws IOException { if (Target >= 0) { writer.write('+'); } writer.printSignedIntAsDec(Target); } } }