/*
* [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;
}
}