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 * Copyright 2014, Google Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of Google Inc. 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,
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 */

package org.jf.dexlib2.rewriter;

import javax.annotation.Nonnull;

public class TypeRewriter implements Rewriter<String> {
    @Nonnull @Override public String rewrite(@Nonnull String value) {
        if (value.length() > 0 && value.charAt(0) == '[') {
            int dimensions = 0;
            while (value.charAt(dimensions) == '[') {
                dimensions++;
            }

            String unwrappedType = value.substring(dimensions);
            String rewrittenType = rewriteUnwrappedType(unwrappedType);

            // instance equality, to avoid a value comparison in the common case of the type being unmodified
            if (unwrappedType != rewrittenType) {
                return new StringBuilder(dimensions + rewrittenType.length())
                        .append(value, 0, dimensions).append(rewrittenType).toString();
            }
            return value;
        } else {
            return rewriteUnwrappedType(value);
        }
    }

    
This is called by the default rewrite implementation with the unwrapped type.
For array types, the unwrapped type is the type with the array specifiers removed. And there is no difference
for non-array types.
Params:
value – The unwrapped type
Returns:
The modified version of the unwrapped type. This will be re-array-ified if the original wrapped type was
an array./**
     * This is called by the default rewrite implementation with the unwrapped type.
     *
     * <p>For array types, the unwrapped type is the type with the array specifiers removed. And there is no difference
     * for non-array types.
     *
     * @param value The unwrapped type
     * @return The modified version of the unwrapped type. This will be re-array-ified if the original wrapped type was
     * an array.
     */
    @Nonnull protected String rewriteUnwrappedType(@Nonnull String value) {
        return value;
    }
}