| /* |
| * ProGuard -- shrinking, optimization, obfuscation, and preverification |
| * of Java bytecode. |
| * |
| * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu) |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the Free |
| * Software Foundation; either version 2 of the License, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| package proguard.classfile.editor; |
| |
| import proguard.classfile.*; |
| import proguard.classfile.attribute.annotation.*; |
| import proguard.classfile.attribute.annotation.visitor.AnnotationVisitor; |
| import proguard.classfile.util.SimplifiedVisitor; |
| |
| /** |
| * This AnnotationVisitor adds all annotations that it visits to the given |
| * target annotation element value, target annotation attribute, or target |
| * parameter annotation attribute. |
| * |
| * @author Eric Lafortune |
| */ |
| public class AnnotationAdder |
| extends SimplifiedVisitor |
| implements AnnotationVisitor |
| { |
| private static final ElementValue[] EMPTY_ELEMENT_VALUES = new ElementValue[0]; |
| |
| |
| private final ProgramClass targetClass; |
| private final AnnotationElementValue targetAnnotationElementValue; |
| private final AnnotationsAttributeEditor annotationsAttributeEditor; |
| private final ParameterAnnotationsAttributeEditor parameterAnnotationsAttributeEditor; |
| |
| private final ConstantAdder constantAdder; |
| |
| |
| /** |
| * Creates a new AnnotationAdder that will copy annotations into the given |
| * target annotation element value. |
| */ |
| public AnnotationAdder(ProgramClass targetClass, |
| AnnotationElementValue targetAnnotationElementValue) |
| { |
| this.targetClass = targetClass; |
| this.targetAnnotationElementValue = targetAnnotationElementValue; |
| this.annotationsAttributeEditor = null; |
| this.parameterAnnotationsAttributeEditor = null; |
| |
| constantAdder = new ConstantAdder(targetClass); |
| } |
| |
| |
| /** |
| * Creates a new AnnotationAdder that will copy annotations into the given |
| * target annotations attribute. |
| */ |
| public AnnotationAdder(ProgramClass targetClass, |
| AnnotationsAttribute targetAnnotationsAttribute) |
| { |
| this.targetClass = targetClass; |
| this.targetAnnotationElementValue = null; |
| this.annotationsAttributeEditor = new AnnotationsAttributeEditor(targetAnnotationsAttribute); |
| this.parameterAnnotationsAttributeEditor = null; |
| |
| constantAdder = new ConstantAdder(targetClass); |
| } |
| |
| |
| /** |
| * Creates a new AnnotationAdder that will copy annotations into the given |
| * target parameter annotations attribute. |
| */ |
| public AnnotationAdder(ProgramClass targetClass, |
| ParameterAnnotationsAttribute targetParameterAnnotationsAttribute) |
| { |
| this.targetClass = targetClass; |
| this.targetAnnotationElementValue = null; |
| this.annotationsAttributeEditor = null; |
| this.parameterAnnotationsAttributeEditor = new ParameterAnnotationsAttributeEditor(targetParameterAnnotationsAttribute); |
| |
| constantAdder = new ConstantAdder(targetClass); |
| } |
| |
| |
| // Implementations for AnnotationVisitor. |
| |
| public void visitAnnotation(Clazz clazz, Annotation annotation) |
| { |
| Annotation newAnnotation = |
| new Annotation(constantAdder.addConstant(clazz, annotation.u2typeIndex), |
| 0, |
| annotation.u2elementValuesCount > 0 ? |
| new ElementValue[annotation.u2elementValuesCount] : |
| EMPTY_ELEMENT_VALUES); |
| |
| // TODO: Clone array. |
| newAnnotation.referencedClasses = annotation.referencedClasses; |
| |
| // Add the element values. |
| annotation.elementValuesAccept(clazz, |
| new ElementValueAdder(targetClass, |
| newAnnotation, |
| false)); |
| |
| // What's the target? |
| if (targetAnnotationElementValue != null) |
| { |
| // Simply set the completed annotation. |
| targetAnnotationElementValue.annotationValue = newAnnotation; |
| } |
| else |
| { |
| // Add the completed annotation. |
| annotationsAttributeEditor.addAnnotation(newAnnotation); |
| } |
| } |
| |
| |
| public void visitAnnotation(Clazz clazz, Method method, int parameterIndex, Annotation annotation) |
| { |
| Annotation newAnnotation = |
| new Annotation(constantAdder.addConstant(clazz, annotation.u2typeIndex), |
| 0, |
| annotation.u2elementValuesCount > 0 ? |
| new ElementValue[annotation.u2elementValuesCount] : |
| EMPTY_ELEMENT_VALUES); |
| |
| // TODO: Clone array. |
| newAnnotation.referencedClasses = annotation.referencedClasses; |
| |
| // Add the element values. |
| annotation.elementValuesAccept(clazz, |
| new ElementValueAdder(targetClass, |
| newAnnotation, |
| false)); |
| |
| // Add the completed annotation. |
| parameterAnnotationsAttributeEditor.addAnnotation(parameterIndex, newAnnotation); |
| } |
| } |