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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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 * accompanied this code).

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/*

 * This file is available under and governed by the GNU General Public

 * License version 2 only, as published by the Free Software Foundation.

 * However, the following notice accompanied the original version of this

 * file:

 *

 * ASM: a very small and fast Java bytecode manipulation framework

 * Copyright (c) 2000-2011 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 jdk.internal.org.objectweb.asm.commons;

import java.util.Collections;

import java.util.Map;

/**

 * A {@link Remapper} using a {@link Map} to define its mapping.

 *

 * @author Eugene Kuleshov

 */

public class SimpleRemapper extends Remapper {

    private final Map<String, String> mapping;

    /**

      * Constructs a new {@link SimpleRemapper} with the given mapping.

      *

      * @param mapping a map specifying a remapping as follows:

      *     <ul>

      *       <li>for method names, the key is the owner, name and descriptor of the method (in the

      *           form <owner>.<name><descriptor>), and the value is the new method

      *           name.

      *       <li>for invokedynamic method names, the key is the name and descriptor of the method (in

      *           the form .<name><descriptor>), and the value is the new method name.

      *       <li>for field names, the key is the owner and name of the field (in the form

      *           <owner>.<name>), and the value is the new field name.

      *       <li>for internal names, the key is the old internal name, and the value is the new

      *           internal name.

      *     </ul>

      */

    public SimpleRemapper(final Map<String, String> mapping) {

        this.mapping = mapping;

    }

    /**

      * Constructs a new {@link SimpleRemapper} with the given mapping.

      *

      * @param oldName the key corresponding to a method, field or internal name (see {@link

      *     #SimpleRemapper(Map)} for the format of these keys).

      * @param newName the new method, field or internal name.

      */

    public SimpleRemapper(final String oldName, final String newName) {

        this.mapping = Collections.singletonMap(oldName, newName);

    }

    @Override

    public String mapMethodName(final String owner, final String name, final String descriptor) {

        String remappedName = map(owner + '.' + name + descriptor);

        return remappedName == null ? name : remappedName;

    }

    @Override

    public String mapInvokeDynamicMethodName(final String name, final String descriptor) {

        String remappedName = map('.' + name + descriptor);

        return remappedName == null ? name : remappedName;

    }

    @Override

    public String mapFieldName(final String owner, final String name, final String descriptor) {

        String remappedName = map(owner + '.' + name);

        return remappedName == null ? name : remappedName;

    }

    @Override

    public String map(final String key) {

        return mapping.get(key);

    }

}