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.List;
  63 
  64 import jdk.internal.org.objectweb.asm.AnnotationVisitor;
  65 import jdk.internal.org.objectweb.asm.Attribute;
  66 import jdk.internal.org.objectweb.asm.ClassVisitor;
  67 import jdk.internal.org.objectweb.asm.FieldVisitor;
  68 import jdk.internal.org.objectweb.asm.MethodVisitor;
  69 import jdk.internal.org.objectweb.asm.ModuleVisitor;
  70 import jdk.internal.org.objectweb.asm.Opcodes;
  71 import jdk.internal.org.objectweb.asm.TypePath;
  72 
  73 /**
  74  * A {@link ClassVisitor} for type remapping.
  75  *
  76  * @author Eugene Kuleshov
  77  */
  78 public class ClassRemapper extends ClassVisitor {
  79 
  80     protected final Remapper remapper;
  81 
  82     protected String className;
  83 
  84     public ClassRemapper(final ClassVisitor cv, final Remapper remapper) {
  85         this(Opcodes.ASM6, cv, remapper);
  86     }
  87 
  88     protected ClassRemapper(final int api, final ClassVisitor cv,
  89             final Remapper remapper) {
  90         super(api, cv);
  91         this.remapper = remapper;
  92     }
  93 
  94     @Override
  95     public void visit(int version, int access, String name, String signature,
  96             String superName, String[] interfaces) {
  97         this.className = name;
  98         super.visit(version, access, remapper.mapType(name), remapper
  99                 .mapSignature(signature, false), remapper.mapType(superName),
 100                 interfaces == null ? null : remapper.mapTypes(interfaces));
 101     }
 102 
 103     @Override
 104     public ModuleVisitor visitModule(String name, int flags, String version) {
 105         ModuleVisitor mv = super.visitModule(remapper.mapModuleName(name), flags, version);
 106         return mv == null ? null : createModuleRemapper(mv);
 107     }
 108 
 109     @Override
 110     public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
 111         AnnotationVisitor av = super.visitAnnotation(remapper.mapDesc(desc),
 112                 visible);
 113         return av == null ? null : createAnnotationRemapper(av);
 114     }
 115 
 116     @Override
 117     public AnnotationVisitor visitTypeAnnotation(int typeRef,
 118             TypePath typePath, String desc, boolean visible) {
 119         AnnotationVisitor av = super.visitTypeAnnotation(typeRef, typePath,
 120                 remapper.mapDesc(desc), visible);
 121         return av == null ? null : createAnnotationRemapper(av);
 122     }
 123 
 124     @Override
 125     public void visitAttribute(Attribute attr) {
 126         if (attr instanceof ModuleHashesAttribute) {
 127             ModuleHashesAttribute hashesAttr = new ModuleHashesAttribute();
 128             List<String> modules = hashesAttr.modules;
 129             for(int i = 0; i < modules.size(); i++) {
 130                 modules.set(i, remapper.mapModuleName(modules.get(i)));
 131             }
 132         }
 133         super.visitAttribute(attr);
 134     }
 135 
 136     @Override
 137     public FieldVisitor visitField(int access, String name, String desc,
 138             String signature, Object value) {
 139         FieldVisitor fv = super.visitField(access,
 140                 remapper.mapFieldName(className, name, desc),
 141                 remapper.mapDesc(desc), remapper.mapSignature(signature, true),
 142                 remapper.mapValue(value));
 143         return fv == null ? null : createFieldRemapper(fv);
 144     }
 145 
 146     @Override
 147     public MethodVisitor visitMethod(int access, String name, String desc,
 148             String signature, String[] exceptions) {
 149         String newDesc = remapper.mapMethodDesc(desc);
 150         MethodVisitor mv = super.visitMethod(access, remapper.mapMethodName(
 151                 className, name, desc), newDesc, remapper.mapSignature(
 152                 signature, false),
 153                 exceptions == null ? null : remapper.mapTypes(exceptions));
 154         return mv == null ? null : createMethodRemapper(mv);
 155     }
 156 
 157     @Override
 158     public void visitInnerClass(String name, String outerName,
 159             String innerName, int access) {
 160         // TODO should innerName be changed?
 161         super.visitInnerClass(remapper.mapType(name), outerName == null ? null
 162                 : remapper.mapType(outerName), innerName, access);
 163     }
 164 
 165     @Override
 166     public void visitOuterClass(String owner, String name, String desc) {
 167         super.visitOuterClass(remapper.mapType(owner), name == null ? null
 168                 : remapper.mapMethodName(owner, name, desc),
 169                 desc == null ? null : remapper.mapMethodDesc(desc));
 170     }
 171 
 172     protected FieldVisitor createFieldRemapper(FieldVisitor fv) {
 173         return new FieldRemapper(fv, remapper);
 174     }
 175 
 176     protected MethodVisitor createMethodRemapper(MethodVisitor mv) {
 177         return new MethodRemapper(mv, remapper);
 178     }
 179 
 180     protected AnnotationVisitor createAnnotationRemapper(AnnotationVisitor av) {
 181         return new AnnotationRemapper(av, remapper);
 182     }
 183 
 184     protected ModuleVisitor createModuleRemapper(ModuleVisitor mv) {
 185         return new ModuleRemapper(mv, remapper);
 186     }
 187 }