15ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver/* 25ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * Copyright 2013, Google Inc. 35ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * All rights reserved. 45ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * 55ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * Redistribution and use in source and binary forms, with or without 65ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * modification, are permitted provided that the following conditions are 75ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * met: 85ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * 95ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * * Redistributions of source code must retain the above copyright 105ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * notice, this list of conditions and the following disclaimer. 115ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * * Redistributions in binary form must reproduce the above 125ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * copyright notice, this list of conditions and the following disclaimer 135ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * in the documentation and/or other materials provided with the 145ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * distribution. 155ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * * Neither the name of Google Inc. nor the names of its 165ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * contributors may be used to endorse or promote products derived from 175ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * this software without specific prior written permission. 185ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * 195ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 205ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 215ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 225ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 235ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 245ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 255ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 265ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 275ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 285ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 295ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 305ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver */ 315ff4ee9a3fc898dbe9a67386e984f14c21338391Ben Gruver 32160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruverpackage org.jf.dexlib2.builder; 33160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver 34160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruverimport org.jf.dexlib2.Opcode; 35160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruverimport org.jf.dexlib2.iface.instruction.OffsetInstruction; 36160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver 37160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruverimport javax.annotation.Nonnull; 38160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver 39160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruverpublic abstract class BuilderOffsetInstruction extends BuilderInstruction implements OffsetInstruction { 40160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver @Nonnull 41160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver protected final Label target; 42160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver 43160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver public BuilderOffsetInstruction(@Nonnull Opcode opcode, 44160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver @Nonnull Label target) { 45160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver super(opcode); 46160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver this.target = target; 47160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver } 48160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver 49160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver @Override public int getCodeOffset() { 50160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver int codeOffset = internalGetCodeOffset(); 51160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver if ((this.getCodeUnits() == 1 && (codeOffset < Byte.MIN_VALUE || codeOffset > Byte.MAX_VALUE)) || 52160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver (this.getCodeUnits() == 2 && (codeOffset < Short.MIN_VALUE || codeOffset > Short.MAX_VALUE))) { 53160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver throw new IllegalStateException("Target is out of range"); 54160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver } 55160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver return codeOffset; 56160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver } 57160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver 58160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver 59160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver int internalGetCodeOffset() { 60160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver return target.getCodeAddress() - this.getLocation().getCodeAddress(); 61160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver } 62160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver 63160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver @Nonnull 64160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver public Label getTarget() { 65160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver return target; 66160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver } 67160449b83a0a19244ae27d0c9acf539c0c730be5Ben Gruver} 68