/*
 * Copyright 2012, 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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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.jf.dexlib2.dexbacked;

import org.jf.dexlib2.dexbacked.util.FixedSizeList;
import org.jf.dexlib2.iface.ClassDef;
import org.jf.dexlib2.iface.DexFile;

import javax.annotation.Nonnull;
import java.util.List;

public class DexBackedDexFile implements DexFile {
    @Nonnull public final DexFileBuffer dexFile;

    private static final int CLASS_DEF_SIZE = 32;

    public DexBackedDexFile(DexFileBuffer dexFile) {
        this.dexFile = dexFile;
    }

    @Nonnull
    @Override
    public List<? extends ClassDef> getClasses() {
        final int classCount = dexFile.getClassCount();

        return new FixedSizeList<ClassDef>() {
            @Override
            public ClassDef readItem(int index) {
                int classOffset = dexFile.getClassDefOffset(index);
                return new DexBackedClassDef(dexFile, classOffset);
            }

            @Override
            public int size() {
                return classCount;
            }
        };
    }
}