ImmutableInstruction32x.java revision 22c3185bb7c8618437eabe6c597549e0989ec4e6
1/* 2 * Copyright 2012, Google Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * * Neither the name of Google Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32package org.jf.dexlib2.immutable.instruction; 33 34import org.jf.dexlib2.Format; 35import org.jf.dexlib2.Opcode; 36import org.jf.dexlib2.iface.instruction.formats.Instruction32x; 37import org.jf.dexlib2.util.Preconditions; 38 39import javax.annotation.Nonnull; 40 41public class ImmutableInstruction32x extends ImmutableInstruction implements Instruction32x { 42 public static final Format FORMAT = Format.Format32x; 43 44 protected final int registerA; 45 protected final int registerB; 46 47 public ImmutableInstruction32x(@Nonnull Opcode opcode, 48 int registerA, 49 int registerB) { 50 super(opcode); 51 Preconditions.checkFormat(opcode, FORMAT); 52 this.registerA = Preconditions.checkShortRegister(registerA); 53 this.registerB = Preconditions.checkShortRegister(registerB); 54 } 55 56 public static ImmutableInstruction32x of(Instruction32x instruction) { 57 if (instruction instanceof ImmutableInstruction32x) { 58 return (ImmutableInstruction32x)instruction; 59 } 60 return new ImmutableInstruction32x( 61 instruction.getOpcode(), 62 instruction.getRegisterA(), 63 instruction.getRegisterB()); 64 } 65 66 @Override public int getRegisterA() { return registerA; } 67 @Override public int getRegisterB() { return registerB; } 68 69 @Override public Format getFormat() { return FORMAT; } 70} 71