1 /* 2 * ProGuard -- shrinking, optimization, obfuscation, and preverification 3 * of Java bytecode. 4 * 5 * Copyright (c) 2002-2014 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 */ 21 package proguard.classfile.visitor; 22 23 import proguard.classfile.*; 24 25 26 /** 27 * This MemberVisitor delegates all visits to a given ClassVisitor. 28 * The latter visits the class of each visited class member, although 29 * never twice in a row. 30 * 31 * @author Eric Lafortune 32 */ 33 public class MemberToClassVisitor implements MemberVisitor 34 { 35 private final ClassVisitor classVisitor; 36 37 private Clazz lastVisitedClass; 38 39 MemberToClassVisitor(ClassVisitor classVisitor)40 public MemberToClassVisitor(ClassVisitor classVisitor) 41 { 42 this.classVisitor = classVisitor; 43 } 44 45 46 // Implementations for MemberVisitor. 47 visitProgramField(ProgramClass programClass, ProgramField programField)48 public void visitProgramField(ProgramClass programClass, ProgramField programField) 49 { 50 if (!programClass.equals(lastVisitedClass)) 51 { 52 classVisitor.visitProgramClass(programClass); 53 54 lastVisitedClass = programClass; 55 } 56 } 57 58 visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod)59 public void visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod) 60 { 61 if (!programClass.equals(lastVisitedClass)) 62 { 63 classVisitor.visitProgramClass(programClass); 64 65 lastVisitedClass = programClass; 66 } 67 } 68 69 visitLibraryField(LibraryClass libraryClass, LibraryField libraryField)70 public void visitLibraryField(LibraryClass libraryClass, LibraryField libraryField) 71 { 72 if (!libraryClass.equals(lastVisitedClass)) 73 { 74 classVisitor.visitLibraryClass(libraryClass); 75 76 lastVisitedClass = libraryClass; 77 } 78 } 79 80 visitLibraryMethod(LibraryClass libraryClass, LibraryMethod libraryMethod)81 public void visitLibraryMethod(LibraryClass libraryClass, LibraryMethod libraryMethod) 82 { 83 if (!libraryClass.equals(lastVisitedClass)) 84 { 85 classVisitor.visitLibraryClass(libraryClass); 86 87 lastVisitedClass = libraryClass; 88 } 89 } 90 } 91