dexlib2/src/main/java/org/jf/dexlib2/writer/pool/TypePool.java

/*
 * Copyright 2013, 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:
 *
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 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
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 * 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.writer.pool;

import org.jf.dexlib2.iface.reference.TypeReference;
import org.jf.dexlib2.writer.TypeSection;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;

public class TypePool extends StringTypeBasePool
        implements TypeSection<CharSequence, CharSequence, TypeReference> {
    @Nonnull private final StringPool stringPool;

    public TypePool(@Nonnull StringPool stringPool) {
        this.stringPool = stringPool;
    }

    public void intern(@Nonnull CharSequence type) {
        String typeString = type.toString();
        Integer prev = internedItems.put(typeString, 0);
        if (prev == null) {
            stringPool.intern(typeString);
        }
    }

    public void internNullable(@Nullable CharSequence type) {
        if (type != null) {
            intern(type);
        }
    }

    @Override public int getItemIndex(@Nonnull TypeReference key) {
        return getItemIndex(key.getType());
    }

    @Nonnull @Override public CharSequence getString(@Nonnull CharSequence type) {
        return type;
    }
}