1/* 2 * ProGuard -- shrinking, optimization, obfuscation, and preverification 3 * of Java bytecode. 4 * 5 * Copyright (c) 2002-2013 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.constant.visitor; 22 23import proguard.classfile.Clazz; 24import proguard.classfile.attribute.*; 25import proguard.classfile.constant.*; 26import proguard.classfile.util.SimplifiedVisitor; 27 28/** 29 * This ConstantVisitor travels from any method handle constants that it visits 30 * to their methodref constants, and applies a given constant visitor. 31 * 32 * @author Eric Lafortune 33 */ 34public class MethodrefTraveler 35extends SimplifiedVisitor 36implements ConstantVisitor 37{ 38 private ConstantVisitor methodrefConstantVisitor; 39 40 41 /** 42 * Creates a new v that will delegate to the given constant visitor. 43 */ 44 public MethodrefTraveler(ConstantVisitor methodrefConstantVisitor) 45 { 46 this.methodrefConstantVisitor = methodrefConstantVisitor; 47 } 48 49 50 // Implementations for ConstantVisitor. 51 52 public void visitAnyConstant(Clazz clazz, Constant constant) {} 53 54 55 public void visitMethodHandleConstant(Clazz clazz, MethodHandleConstant methodHandleConstant) 56 { 57 clazz.constantPoolEntryAccept(methodHandleConstant.u2referenceIndex, 58 methodrefConstantVisitor); 59 } 60} 61