1 /*
   2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   3  *
   4  * This code is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU General Public License version 2 only, as
   6  * published by the Free Software Foundation.  Oracle designates this
   7  * particular file as subject to the "Classpath" exception as provided
   8  * by Oracle in the LICENSE file that accompanied this code.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  */
  24 
  25 /*
  26  * This file is available under and governed by the GNU General Public
  27  * License version 2 only, as published by the Free Software Foundation.
  28  * However, the following notice accompanied the original version of this
  29  * file:
  30  *
  31  * ASM: a very small and fast Java bytecode manipulation framework
  32  * Copyright (c) 2000-2011 INRIA, France Telecom
  33  * All rights reserved.
  34  *
  35  * Redistribution and use in source and binary forms, with or without
  36  * modification, are permitted provided that the following conditions
  37  * are met:
  38  * 1. Redistributions of source code must retain the above copyright
  39  *    notice, this list of conditions and the following disclaimer.
  40  * 2. Redistributions in binary form must reproduce the above copyright
  41  *    notice, this list of conditions and the following disclaimer in the
  42  *    documentation and/or other materials provided with the distribution.
  43  * 3. Neither the name of the copyright holders nor the names of its
  44  *    contributors may be used to endorse or promote products derived from
  45  *    this software without specific prior written permission.
  46  *
  47  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  48  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  49  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  50  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  51  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  52  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  53  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  54  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  55  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  56  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  57  * THE POSSIBILITY OF SUCH DAMAGE.
  58  */
  59 
  60 package jdk.internal.org.objectweb.asm.commons;
  61 
  62 import java.util.Stack;
  63 
  64 import jdk.internal.org.objectweb.asm.Opcodes;
  65 import jdk.internal.org.objectweb.asm.signature.SignatureVisitor;
  66 
  67 /**
  68  * A {@link SignatureVisitor} adapter for type mapping.
  69  *
  70  * @author Eugene Kuleshov
  71  */
  72 public class SignatureRemapper extends SignatureVisitor {
  73 
  74     private final SignatureVisitor v;
  75 
  76     private final Remapper remapper;
  77 
  78     private Stack<String> classNames = new Stack<String>();
  79 
  80     public SignatureRemapper(final SignatureVisitor v, final Remapper remapper) {
  81         this(Opcodes.ASM5, v, remapper);
  82     }
  83 
  84     protected SignatureRemapper(final int api, final SignatureVisitor v,
  85             final Remapper remapper) {
  86         super(api);
  87         this.v = v;
  88         this.remapper = remapper;
  89     }
  90 
  91     @Override
  92     public void visitClassType(String name) {
  93         classNames.push(name);
  94         v.visitClassType(remapper.mapType(name));
  95     }
  96 
  97     @Override
  98     public void visitInnerClassType(String name) {
  99         String outerClassName = classNames.pop();
 100         String className = outerClassName + '$' + name;
 101         classNames.push(className);
 102         String remappedOuter = remapper.mapType(outerClassName) + '$';
 103         String remappedName = remapper.mapType(className);
 104         int index = remappedName.startsWith(remappedOuter) ? remappedOuter
 105                 .length() : remappedName.lastIndexOf('$') + 1;
 106         v.visitInnerClassType(remappedName.substring(index));
 107     }
 108 
 109     @Override
 110     public void visitFormalTypeParameter(String name) {
 111         v.visitFormalTypeParameter(name);
 112     }
 113 
 114     @Override
 115     public void visitTypeVariable(String name) {
 116         v.visitTypeVariable(name);
 117     }
 118 
 119     @Override
 120     public SignatureVisitor visitArrayType() {
 121         v.visitArrayType();
 122         return this;
 123     }
 124 
 125     @Override
 126     public void visitBaseType(char descriptor) {
 127         v.visitBaseType(descriptor);
 128     }
 129 
 130     @Override
 131     public SignatureVisitor visitClassBound() {
 132         v.visitClassBound();
 133         return this;
 134     }
 135 
 136     @Override
 137     public SignatureVisitor visitExceptionType() {
 138         v.visitExceptionType();
 139         return this;
 140     }
 141 
 142     @Override
 143     public SignatureVisitor visitInterface() {
 144         v.visitInterface();
 145         return this;
 146     }
 147 
 148     @Override
 149     public SignatureVisitor visitInterfaceBound() {
 150         v.visitInterfaceBound();
 151         return this;
 152     }
 153 
 154     @Override
 155     public SignatureVisitor visitParameterType() {
 156         v.visitParameterType();
 157         return this;
 158     }
 159 
 160     @Override
 161     public SignatureVisitor visitReturnType() {
 162         v.visitReturnType();
 163         return this;
 164     }
 165 
 166     @Override
 167     public SignatureVisitor visitSuperclass() {
 168         v.visitSuperclass();
 169         return this;
 170     }
 171 
 172     @Override
 173     public void visitTypeArgument() {
 174         v.visitTypeArgument();
 175     }
 176 
 177     @Override
 178     public SignatureVisitor visitTypeArgument(char wildcard) {
 179         v.visitTypeArgument(wildcard);
 180         return this;
 181     }
 182 
 183     @Override
 184     public void visitEnd() {
 185         v.visitEnd();
 186         classNames.pop();
 187     }
 188 }