CatchMethodItem.java revision 16a911620ccf7b530b873fb71cf13e8dcb88ad28
1/* 2 * [The "BSD licence"] 3 * Copyright (c) 2009 Ben Gruver 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * 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.dexlib.TypeIdItem; 32import org.jf.baksmali.Adaptors.Reference.TypeReference; 33import org.antlr.stringtemplate.StringTemplateGroup; 34import org.antlr.stringtemplate.StringTemplate; 35 36public class CatchMethodItem extends MethodItem { 37 private final StringTemplateGroup stg; 38 private final TypeIdItem exceptionType; 39 40 private final LabelMethodItem tryStartLabel; 41 private final LabelMethodItem tryEndLabel; 42 private final LabelMethodItem handlerLabel; 43 44 public CatchMethodItem(MethodDefinition.LabelCache labelCache, int codeAddress, StringTemplateGroup stg, 45 TypeIdItem exceptionType, int startAddress, int endAddress, int handlerAddress) { 46 super(codeAddress); 47 this.stg = stg; 48 this.exceptionType = exceptionType; 49 50 tryStartLabel = labelCache.internLabel(new LabelMethodItem(startAddress, stg, "try_start_")); 51 tryStartLabel.setUncommented(); 52 //use the address from the last covered instruction, but make the label 53 //name refer to the address of the next instruction 54 tryEndLabel = labelCache.internLabel(new EndTryLabelMethodItem(codeAddress, stg, endAddress)); 55 tryEndLabel.setUncommented(); 56 57 if (exceptionType == null) { 58 handlerLabel = labelCache.internLabel(new LabelMethodItem(handlerAddress, stg, "catchall_")); 59 } else { 60 handlerLabel = labelCache.internLabel(new LabelMethodItem(handlerAddress, stg, "catch_")); 61 } 62 handlerLabel.setUncommented(); 63 } 64 65 public LabelMethodItem getTryStartLabel() { 66 return tryStartLabel; 67 } 68 69 public LabelMethodItem getTryEndLabel() { 70 return tryEndLabel; 71 } 72 73 public LabelMethodItem getHandlerLabel() { 74 return handlerLabel; 75 } 76 77 public int getSortOrder() { 78 //sort after instruction and end_try label 79 return 102; 80 } 81 82 protected String getTemplateName() { 83 return "Catch"; 84 } 85 86 @Override 87 public String toString() { 88 StringTemplate template = stg.getInstanceOf(getTemplateName()); 89 if (exceptionType != null) { 90 template.setAttribute("ExceptionType", TypeReference.createTemplate(stg, exceptionType)); 91 } 92 template.setAttribute("StartLabel", tryStartLabel); 93 template.setAttribute("EndLabel", tryEndLabel); 94 template.setAttribute("HandlerLabel", handlerLabel); 95 return template.toString(); 96 } 97} 98