1/* 2 * ProGuard -- shrinking, optimization, obfuscation, and preverification 3 * of Java bytecode. 4 * 5 * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu) 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the Free 9 * Software Foundation; either version 2 of the License, or (at your option) 10 * any later version. 11 * 12 * This program is distributed in the hope that it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15 * more details. 16 * 17 * You should have received a copy of the GNU General Public License along 18 * with this program; if not, write to the Free Software Foundation, Inc., 19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21package proguard.classfile.editor; 22 23import proguard.classfile.attribute.annotation.*; 24 25/** 26 * This class can add annotations to a given parameter annotations attribute. 27 * Annotations to be added must have been filled out beforehand. 28 * 29 * @author Eric Lafortune 30 */ 31public class ParameterAnnotationsAttributeEditor 32{ 33 private ParameterAnnotationsAttribute targetParameterAnnotationsAttribute; 34 35 36 /** 37 * Creates a new ParameterAnnotationsAttributeEditor that will edit 38 * annotations in the given parameter annotations attribute. 39 */ 40 public ParameterAnnotationsAttributeEditor(ParameterAnnotationsAttribute targetParameterAnnotationsAttribute) 41 { 42 this.targetParameterAnnotationsAttribute = targetParameterAnnotationsAttribute; 43 } 44 45 46 /** 47 * Adds a given annotation to the annotations attribute. 48 */ 49 public void addAnnotation(int parameterIndex, Annotation annotation) 50 { 51 int annotationsCount = targetParameterAnnotationsAttribute.u2parameterAnnotationsCount[parameterIndex]; 52 Annotation[] annotations = targetParameterAnnotationsAttribute.parameterAnnotations[parameterIndex]; 53 54 // Make sure there is enough space for the new annotation. 55 if (annotations == null || 56 annotations.length <= annotationsCount) 57 { 58 targetParameterAnnotationsAttribute.parameterAnnotations[parameterIndex] = new Annotation[annotationsCount+1]; 59 if (annotations != null) 60 { 61 System.arraycopy(annotations, 0, 62 targetParameterAnnotationsAttribute.parameterAnnotations[parameterIndex], 0, 63 annotationsCount); 64 } 65 annotations = targetParameterAnnotationsAttribute.parameterAnnotations[parameterIndex]; 66 } 67 68 // Add the annotation. 69 annotations[targetParameterAnnotationsAttribute.u2parameterAnnotationsCount[parameterIndex]++] = annotation; 70 } 71}