CatchMethodItem.java revision 6eae34831fee1f116f3a453bdc5e143d68e05e03
190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles)/* 290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * [The "BSD licence"] 390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * Copyright (c) 2010 Ben Gruver (JesusFreke) 490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * All rights reserved. 5868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) * 690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 7868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) * modification, are permitted provided that the following conditions 890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * are met: 990dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * 1. Redistributions of source code must retain the above copyright 1090dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 1190dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * 2. Redistributions in binary form must reproduce the above copyright 1290dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * notice, this list of conditions and the following disclaimer in the 1390dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * documentation and/or other materials provided with the distribution. 1490dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * 3. The name of the author may not be used to endorse or promote products 1590dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * derived from this software without specific prior written permission. 1690dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * 1790dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 1890dce4d38c5ff5333bea97d859d4e484e27edf0cTorne (Richard Coles) * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19868fa2fe829687343ffae624259930155e16dbd8Torne (Richard Coles) * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29package org.jf.baksmali.Adaptors; 30 31import org.jf.baksmali.IndentingPrintWriter; 32import org.jf.dexlib.TypeIdItem; 33 34public class CatchMethodItem extends MethodItem { 35 private final TypeIdItem exceptionType; 36 37 private final LabelMethodItem tryStartLabel; 38 private final LabelMethodItem tryEndLabel; 39 private final LabelMethodItem handlerLabel; 40 41 public CatchMethodItem(MethodDefinition.LabelCache labelCache, int codeAddress, TypeIdItem exceptionType, 42 int startAddress, int endAddress, int handlerAddress) { 43 super(codeAddress); 44 this.exceptionType = exceptionType; 45 46 tryStartLabel = labelCache.internLabel(new LabelMethodItem(startAddress, "try_start_")); 47 tryStartLabel.setUncommented(); 48 //use the address from the last covered instruction, but make the label 49 //name refer to the address of the next instruction 50 tryEndLabel = labelCache.internLabel(new EndTryLabelMethodItem(codeAddress, endAddress)); 51 tryEndLabel.setUncommented(); 52 53 if (exceptionType == null) { 54 handlerLabel = labelCache.internLabel(new LabelMethodItem(handlerAddress, "catchall_")); 55 } else { 56 handlerLabel = labelCache.internLabel(new LabelMethodItem(handlerAddress, "catch_")); 57 } 58 handlerLabel.setUncommented(); 59 } 60 61 public LabelMethodItem getTryStartLabel() { 62 return tryStartLabel; 63 } 64 65 public LabelMethodItem getTryEndLabel() { 66 return tryEndLabel; 67 } 68 69 public LabelMethodItem getHandlerLabel() { 70 return handlerLabel; 71 } 72 73 public double getSortOrder() { 74 //sort after instruction and end_try label 75 return 102; 76 } 77 78 @Override 79 public boolean writeTo(IndentingPrintWriter writer) { 80 if (exceptionType == null) { 81 writer.write(".catchall"); 82 } else { 83 writer.write(".catch "); 84 ReferenceFormatter.writeTypeReference(writer, exceptionType); 85 } 86 writer.write(" {"); 87 tryStartLabel.writeTo(writer); 88 writer.write(" .. "); 89 tryEndLabel.writeTo(writer); 90 writer.write("} "); 91 handlerLabel.writeTo(writer); 92 return true; 93 } 94} 95