text: /*
   * 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.attribute.visitor;
  
  import proguard.classfile.*;
  import proguard.classfile.attribute.*;
  import proguard.classfile.util.SimplifiedVisitor;
  import proguard.classfile.visitor.*;
  
  /**
   * This ClassVisitor, MemberVisitor, and AttributeVisitor lets a given
   * AttributeVisitor visit all Attribute objects of the program classes,
   * program class members, or code attributes, respectively, that it visits.
   *
   * @author Eric Lafortune
   */
  public class AllAttributeVisitor
  extends      SimplifiedVisitor
  implements   ClassVisitor,
               MemberVisitor,
               AttributeVisitor
  {
      private final boolean          deep;
      private final AttributeVisitor attributeVisitor;
  
  
      /**
       * Creates a new shallow AllAttributeVisitor.
       * @param attributeVisitor the AttributeVisitor to which visits will be
       *                         delegated.
       */
      public AllAttributeVisitor(AttributeVisitor attributeVisitor)
      {
          this(false, attributeVisitor);
      }
  
  
      /**
       * Creates a new optionally deep AllAttributeVisitor.
       * @param deep             specifies whether the attributes contained
       *                         further down the class structure should be
       *                         visited too.
       * @param attributeVisitor the AttributeVisitor to which visits will be
       *                         delegated.
       */
      public AllAttributeVisitor(boolean          deep,
                                 AttributeVisitor attributeVisitor)
      {
          this.deep             = deep;
          this.attributeVisitor = attributeVisitor;
      }
  
  
      // Implementations for ClassVisitor.
  
      public void visitProgramClass(ProgramClass programClass)
      {
          programClass.attributesAccept(attributeVisitor);
  
          // Visit the attributes further down the class structure, if required.
          if (deep)
          {
              programClass.fieldsAccept(this);
              programClass.methodsAccept(this);
              programClass.attributesAccept(this);
          }
      }
  
  
      public void visitLibraryClass(LibraryClass libraryClass) {}
  
  
      // Implementations for MemberVisitor.
  
      public void visitProgramMember(ProgramClass programClass, ProgramMember programMember)
      {
          programMember.attributesAccept(programClass, attributeVisitor);
  
          // Visit the attributes further down the member structure, if required.
          if (deep)
          {
              programMember.attributesAccept(programClass, this);
          }
      }
  
  
      public void visitLibraryMember(LibraryClass programClass, LibraryMember programMember) {}
  
  
      // Implementations for AttributeVisitor.
  
      public void visitAnyAttribute(Clazz clazz, Attribute attribute) {}
  
  
      public void visitCodeAttribute(Clazz clazz, Method method, CodeAttribute codeAttribute)
      {
          codeAttribute.attributesAccept(clazz, method, attributeVisitor);
      }
  }
  