| /* |
| * [The "BSD licence"] |
| * Copyright (c) 2010 Ben Gruver |
| * 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; |
| |
| import org.jf.baksmali.baksmaliOptions; |
| import org.jf.dexlib2.analysis.AnalyzedInstruction; |
| import org.jf.dexlib2.analysis.RegisterType; |
| import org.jf.util.IndentingWriter; |
| |
| import javax.annotation.Nonnull; |
| import java.io.IOException; |
| import java.util.BitSet; |
| |
| public class PostInstructionRegisterInfoMethodItem extends MethodItem { |
| @Nonnull private final RegisterFormatter registerFormatter; |
| @Nonnull private final AnalyzedInstruction analyzedInstruction; |
| |
| public PostInstructionRegisterInfoMethodItem(@Nonnull RegisterFormatter registerFormatter, |
| @Nonnull AnalyzedInstruction analyzedInstruction, |
| int codeAddress) { |
| super(codeAddress); |
| this.registerFormatter = registerFormatter; |
| this.analyzedInstruction = analyzedInstruction; |
| } |
| |
| @Override |
| public double getSortOrder() { |
| return 100.1; |
| } |
| |
| @Override |
| public boolean writeTo(IndentingWriter writer) throws IOException { |
| int registerInfo = registerFormatter.options.registerInfo; |
| int registerCount = analyzedInstruction.getRegisterCount(); |
| BitSet registers = new BitSet(registerCount); |
| |
| if ((registerInfo & baksmaliOptions.ALL) != 0) { |
| registers.set(0, registerCount); |
| } else { |
| if ((registerInfo & baksmaliOptions.ALLPOST) != 0) { |
| registers.set(0, registerCount); |
| } else if ((registerInfo & baksmaliOptions.DEST) != 0) { |
| addDestRegs(registers, registerCount); |
| } |
| } |
| |
| return writeRegisterInfo(writer, registers); |
| } |
| |
| private void addDestRegs(BitSet printPostRegister, int registerCount) { |
| for (int registerNum=0; registerNum<registerCount; registerNum++) { |
| if (!analyzedInstruction.getPreInstructionRegisterType(registerNum).equals( |
| analyzedInstruction.getPostInstructionRegisterType(registerNum))) { |
| printPostRegister.set(registerNum); |
| } |
| } |
| } |
| |
| private boolean writeRegisterInfo(IndentingWriter writer, BitSet registers) throws IOException { |
| int registerNum = registers.nextSetBit(0); |
| if (registerNum < 0) { |
| return false; |
| } |
| |
| writer.write('#'); |
| for (; registerNum >= 0; registerNum = registers.nextSetBit(registerNum + 1)) { |
| RegisterType registerType = analyzedInstruction.getPostInstructionRegisterType(registerNum); |
| |
| registerFormatter.writeTo(writer, registerNum); |
| writer.write('='); |
| registerType.writeTo(writer); |
| writer.write(';'); |
| } |
| return true; |
| } |
| } |