| /*** |
| * ASM: a very small and fast Java bytecode manipulation framework |
| * Copyright (c) 2000-2007 INRIA, France Telecom |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the copyright holders nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| package com.google.gwt.dev.asm.commons; |
| |
| import com.google.gwt.dev.asm.Type; |
| import com.google.gwt.dev.asm.signature.SignatureReader; |
| import com.google.gwt.dev.asm.signature.SignatureVisitor; |
| import com.google.gwt.dev.asm.signature.SignatureWriter; |
| |
| /** |
| * A class responsible for remapping types and names. |
| * Subclasses can override the following methods: |
| * |
| * <ul> |
| * <li>{@link #map(String)} - map type</li> |
| * <li>{@link #mapFieldName(String, String, String)} - map field name</li> |
| * <li>{@link #mapMethodName(String, String, String)} - map method name</li> |
| * </ul> |
| * |
| * @author Eugene Kuleshov |
| */ |
| public abstract class Remapper { |
| |
| public String mapDesc(String desc) { |
| Type t = Type.getType(desc); |
| switch (t.getSort()) { |
| case Type.ARRAY: |
| String s = mapDesc(t.getElementType().getDescriptor()); |
| for (int i = 0; i < t.getDimensions(); ++i) { |
| s = '[' + s; |
| } |
| return s; |
| case Type.OBJECT: |
| String newType = map(t.getInternalName()); |
| if (newType != null) { |
| return 'L' + newType + ';'; |
| } |
| } |
| return desc; |
| } |
| |
| private Type mapType(Type t) { |
| switch (t.getSort()) { |
| case Type.ARRAY: |
| String s = mapDesc(t.getElementType().getDescriptor()); |
| for (int i = 0; i < t.getDimensions(); ++i) { |
| s = '[' + s; |
| } |
| return Type.getType(s); |
| case Type.OBJECT: |
| s = map(t.getInternalName()); |
| if(s != null) { |
| return Type.getObjectType(s); |
| } |
| } |
| return t; |
| } |
| |
| public String mapType(String type) { |
| if (type == null) { |
| return null; |
| } |
| return mapType(Type.getObjectType(type)).getInternalName(); |
| } |
| |
| public String[] mapTypes(String[] types) { |
| String[] newTypes = null; |
| boolean needMapping = false; |
| for (int i = 0; i < types.length; i++) { |
| String type = types[i]; |
| String newType = map(type); |
| if (newType != null && newTypes == null) { |
| newTypes = new String[types.length]; |
| if (i > 0) { |
| System.arraycopy(types, 0, newTypes, 0, i); |
| } |
| needMapping = true; |
| } |
| if (needMapping) { |
| newTypes[i] = newType == null |
| ? type |
| : newType; |
| } |
| } |
| return needMapping |
| ? newTypes |
| : types; |
| } |
| |
| public String mapMethodDesc(String desc) { |
| if("()V".equals(desc)) { |
| return desc; |
| } |
| |
| Type[] args = Type.getArgumentTypes(desc); |
| String s = "("; |
| for (int i = 0; i < args.length; i++) { |
| s += mapDesc(args[i].getDescriptor()); |
| } |
| Type returnType = Type.getReturnType(desc); |
| if(returnType == Type.VOID_TYPE) { |
| return s + ")V"; |
| } |
| return s + ')' + mapDesc(returnType.getDescriptor()); |
| } |
| |
| public Object mapValue(Object value) { |
| return value instanceof Type ? mapType((Type) value) : value; |
| } |
| |
| /** |
| * |
| * @param typeSignature true if signature is a FieldTypeSignature, such as |
| * the signature parameter of the ClassVisitor.visitField or |
| * MethodVisitor.visitLocalVariable methods |
| */ |
| public String mapSignature(String signature, boolean typeSignature) { |
| if (signature == null) { |
| return null; |
| } |
| SignatureReader r = new SignatureReader(signature); |
| SignatureWriter w = new SignatureWriter(); |
| SignatureVisitor a = createRemappingSignatureAdapter(w); |
| if (typeSignature) { |
| r.acceptType(a); |
| } else { |
| r.accept(a); |
| } |
| return w.toString(); |
| } |
| |
| protected SignatureVisitor createRemappingSignatureAdapter( |
| SignatureVisitor v) |
| { |
| return new RemappingSignatureAdapter(v, this); |
| } |
| |
| /** |
| * Map method name to the new name. Subclasses can override. |
| */ |
| public String mapMethodName(String owner, String name, String desc) { |
| return name; |
| } |
| |
| /** |
| * Map field name to the new name. Subclasses can override. |
| */ |
| public String mapFieldName(String owner, String name, String desc) { |
| return name; |
| } |
| |
| /** |
| * Map type name to the new name. Subclasses can override. |
| */ |
| public String map(String typeName) { |
| return typeName; |
| } |
| |
| } |