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 method calls to a MemberVisitor 28 * that can be changed at any time. 29 * 30 * @author Eric Lafortune 31 */ 32 public class VariableMemberVisitor implements MemberVisitor 33 { 34 private MemberVisitor memberVisitor; 35 36 VariableMemberVisitor()37 public VariableMemberVisitor() 38 { 39 this(null); 40 } 41 42 VariableMemberVisitor(MemberVisitor memberVisitor)43 public VariableMemberVisitor(MemberVisitor memberVisitor) 44 { 45 this.memberVisitor = memberVisitor; 46 } 47 48 setMemberVisitor(MemberVisitor memberVisitor)49 public void setMemberVisitor(MemberVisitor memberVisitor) 50 { 51 this.memberVisitor = memberVisitor; 52 } 53 getMemberVisitor()54 public MemberVisitor getMemberVisitor() 55 { 56 return memberVisitor; 57 } 58 59 60 // Implementations for MemberVisitor. 61 visitProgramField(ProgramClass programClass, ProgramField programField)62 public void visitProgramField(ProgramClass programClass, ProgramField programField) 63 { 64 if (memberVisitor != null) 65 { 66 memberVisitor.visitProgramField(programClass, programField); 67 } 68 } 69 70 visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod)71 public void visitProgramMethod(ProgramClass programClass, ProgramMethod programMethod) 72 { 73 if (memberVisitor != null) 74 { 75 memberVisitor.visitProgramMethod(programClass, programMethod); 76 } 77 } 78 79 visitLibraryField(LibraryClass libraryClass, LibraryField libraryField)80 public void visitLibraryField(LibraryClass libraryClass, LibraryField libraryField) 81 { 82 if (memberVisitor != null) 83 { 84 memberVisitor.visitLibraryField(libraryClass, libraryField); 85 } 86 } 87 88 visitLibraryMethod(LibraryClass libraryClass, LibraryMethod libraryMethod)89 public void visitLibraryMethod(LibraryClass libraryClass, LibraryMethod libraryMethod) 90 { 91 if (memberVisitor != null) 92 { 93 memberVisitor.visitLibraryMethod(libraryClass, libraryMethod); 94 } 95 } 96 } 97