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/*
* Copyright 2014, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may 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 org.jf.smalidea.dexlib.instruction;
import com.google.common.base.Function;
import com.google.common.collect.Lists;
import org.jf.dexlib2.Opcode;
import org.jf.dexlib2.iface.instruction.SwitchElement;
import org.jf.dexlib2.iface.instruction.formats.SparseSwitchPayload;
import org.jf.smalidea.psi.impl.*;
import org.jf.smalidea.util.InstructionUtils;
import javax.annotation.Nonnull;
import java.util.List;
public class SmalideaSparseSwitchPayload extends SmalideaInstruction implements SparseSwitchPayload {
public SmalideaSparseSwitchPayload(@Nonnull SmaliInstruction instruction) {
super(instruction);
}
@Nonnull @Override public List<? extends SwitchElement> getSwitchElements() {
List<SmaliSparseSwitchElement> elements = psiInstruction.getSparseSwitchElements();
SmaliMethod smaliMethod = psiInstruction.getParentMethod();
SmaliInstruction sparseSwitchInstruction = InstructionUtils.findFirstInstructionWithTarget(
smaliMethod, Opcode.SPARSE_SWITCH, psiInstruction.getOffset());
final int baseOffset;
if (sparseSwitchInstruction == null) {
baseOffset = 0;
} else {
baseOffset = sparseSwitchInstruction.getOffset();
}
return Lists.transform(elements, new Function<SmaliSparseSwitchElement, SwitchElement>() {
@Override public SwitchElement apply(final SmaliSparseSwitchElement element) {
return new SwitchElement() {
@Override public int getKey() {
return (int)element.getKey().getIntegralValue();
}
@Override public int getOffset() {
SmaliLabelReference labelReference = element.getTarget();
if (labelReference == null) {
return 0;
}
SmaliLabel label = labelReference.resolve();
if (label == null) {
return 0;
}
return label.getOffset() - baseOffset;
}
};
}
});
}
@Override public int getCodeUnits() {
return psiInstruction.getInstructionSize()/2;
}
}
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