Instruction20t.java revision 5867263eb588f4671400895d1e6b01c01535061b
15867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com/* 25867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * [The "BSD licence"] 35867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * Copyright (c) 2009 Ben Gruver 45867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * All rights reserved. 55867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * 65867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * Redistribution and use in source and binary forms, with or without 75867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * modification, are permitted provided that the following conditions 85867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * are met: 95867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * 1. Redistributions of source code must retain the above copyright 105867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * notice, this list of conditions and the following disclaimer. 115867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * 2. Redistributions in binary form must reproduce the above copyright 125867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * notice, this list of conditions and the following disclaimer in the 135867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * documentation and/or other materials provided with the distribution. 145867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * 3. The name of the author may not be used to endorse or promote products 155867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * derived from this software without specific prior written permission. 165867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * 175867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 185867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 195867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 205867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 215867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 225867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 235867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 245867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 255867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 265867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 275867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com */ 285867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 295867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.compackage org.jf.dexlib.Code.Format; 305867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 315867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.comimport org.jf.dexlib.Code.Instruction; 325867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.comimport org.jf.dexlib.Code.Opcode; 335867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.comimport org.jf.dexlib.Code.OffsetInstruction; 345867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.comimport org.jf.dexlib.DexFile; 355867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.comimport org.jf.dexlib.Util.NumberUtils; 365867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.comimport org.jf.dexlib.Util.Output; 375867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 385867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.compublic class Instruction20t extends Instruction implements OffsetInstruction { 395867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com public static final Instruction.InstructionFactory Factory = new Factory(); 405867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 415867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com public static void emit(Output out, Opcode opcode, short offA) { 425867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com if (offA == 0) { 435867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com throw new RuntimeException("The offset cannot be 0. Use goto/32 instead."); 445867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com } 455867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 465867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com out.writeByte(opcode.value); 475867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com out.writeByte(0); 485867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com out.writeShort(offA); 495867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com } 505867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 515867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com private Instruction20t(Opcode opcode, byte[] buffer, int bufferIndex) { 525867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com super(opcode, buffer, bufferIndex); 535867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 545867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com if (getOffset() == 0) { 555867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com throw new RuntimeException("The offset cannot be 0. Use goto/32 instead."); 565867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com } 575867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com } 585867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 595867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com public Format getFormat() { 605867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com return Format.Format20t; 615867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com } 625867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 635867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com public int getOffset() { 645867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com return NumberUtils.decodeShort(buffer, bufferIndex + 2); 655867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com } 665867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com 675867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com private static class Factory implements Instruction.InstructionFactory { 685867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com public Instruction makeInstruction(DexFile dexFile, Opcode opcode, byte[] buffer, int bufferIndex) { 695867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com return new Instruction20t(opcode, buffer, bufferIndex); 705867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com } 715867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com } 725867263eb588f4671400895d1e6b01c01535061bJesusFreke@JesusFreke.com} 73