/*
* Copyright 2012, Google Inc.
* All rights reserved.
*
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* 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.
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* 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
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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package org.jf.dexlib2.immutable.instruction;
import com.google.common.collect.ImmutableList;
import org.jf.dexlib2.Format;
import org.jf.dexlib2.Opcode;
import org.jf.dexlib2.iface.instruction.Instruction;
import org.jf.dexlib2.iface.instruction.formats.*;
import org.jf.dexlib2.util.Preconditions;
import org.jf.util.ImmutableConverter;
import javax.annotation.Nonnull;
public abstract class ImmutableInstruction implements Instruction {
@Nonnull protected final Opcode opcode;
protected ImmutableInstruction(@Nonnull Opcode opcode) {
Preconditions.checkFormat(opcode, getFormat());
this.opcode = opcode;
}
@Nonnull
public static ImmutableInstruction of(Instruction instruction) {
if (instruction instanceof ImmutableInstruction) {
return (ImmutableInstruction)instruction;
}
switch (instruction.getOpcode().format) {
case Format10t:
return ImmutableInstruction10t.of((Instruction10t)instruction);
case Format10x:
if (instruction instanceof UnknownInstruction) {
return ImmutableUnknownInstruction.of((UnknownInstruction)instruction);
}
return ImmutableInstruction10x.of((Instruction10x)instruction);
case Format11n:
return ImmutableInstruction11n.of((Instruction11n)instruction);
case Format11x:
return ImmutableInstruction11x.of((Instruction11x)instruction);
case Format12x:
return ImmutableInstruction12x.of((Instruction12x)instruction);
case Format20bc:
return ImmutableInstruction20bc.of((Instruction20bc)instruction);
case Format20t:
return ImmutableInstruction20t.of((Instruction20t)instruction);
case Format21c:
return ImmutableInstruction21c.of((Instruction21c)instruction);
case Format21ih:
return ImmutableInstruction21ih.of((Instruction21ih)instruction);
case Format21lh:
return ImmutableInstruction21lh.of((Instruction21lh)instruction);
case Format21s:
return ImmutableInstruction21s.of((Instruction21s)instruction);
case Format21t:
return ImmutableInstruction21t.of((Instruction21t)instruction);
case Format22b:
return ImmutableInstruction22b.of((Instruction22b)instruction);
case Format22c:
return ImmutableInstruction22c.of((Instruction22c)instruction);
case Format22cs:
return ImmutableInstruction22cs.of((Instruction22cs)instruction);
case Format22s:
return ImmutableInstruction22s.of((Instruction22s)instruction);
case Format22t:
return ImmutableInstruction22t.of((Instruction22t)instruction);
case Format22x:
return ImmutableInstruction22x.of((Instruction22x)instruction);
case Format23x:
return ImmutableInstruction23x.of((Instruction23x)instruction);
case Format30t:
return ImmutableInstruction30t.of((Instruction30t)instruction);
case Format31c:
return ImmutableInstruction31c.of((Instruction31c)instruction);
case Format31i:
return ImmutableInstruction31i.of((Instruction31i)instruction);
case Format31t:
return ImmutableInstruction31t.of((Instruction31t)instruction);
case Format32x:
return ImmutableInstruction32x.of((Instruction32x)instruction);
case Format35c:
return ImmutableInstruction35c.of((Instruction35c)instruction);
case Format35mi:
return ImmutableInstruction35mi.of((Instruction35mi)instruction);
case Format35ms:
return ImmutableInstruction35ms.of((Instruction35ms)instruction);
case Format3rc:
return ImmutableInstruction3rc.of((Instruction3rc)instruction);
case Format3rmi:
return ImmutableInstruction3rmi.of((Instruction3rmi)instruction);
case Format3rms:
return ImmutableInstruction3rms.of((Instruction3rms)instruction);
case Format51l:
return ImmutableInstruction51l.of((Instruction51l)instruction);
case PackedSwitchPayload:
return ImmutablePackedSwitchPayload.of((PackedSwitchPayload) instruction);
case SparseSwitchPayload:
return ImmutableSparseSwitchPayload.of((SparseSwitchPayload) instruction);
case ArrayPayload:
return ImmutableArrayPayload.of((ArrayPayload) instruction);
default:
throw new RuntimeException("Unexpected instruction type");
}
}
@Nonnull public Opcode getOpcode() {
return opcode;
}
public abstract Format getFormat();
public int getCodeUnits() {
return getFormat().size / 2;
}
@Nonnull
public static ImmutableList<ImmutableInstruction> immutableListOf(Iterable<? extends Instruction> list) {
return CONVERTER.toList(list);
}
private static final ImmutableConverter<ImmutableInstruction, Instruction> CONVERTER =
new ImmutableConverter<ImmutableInstruction, Instruction>() {
@Override
protected boolean isImmutable(@Nonnull Instruction item) {
return item instanceof ImmutableInstruction;
}
@Nonnull
@Override
protected ImmutableInstruction makeImmutable(@Nonnull Instruction item) {
return ImmutableInstruction.of(item);
}
};
}