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// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
// https://developers.google.com/protocol-buffers/
//
// 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,
// 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.protobuf;
import com.google.protobuf.Internal.ProtobufList;
import java.util.ArrayList;
import java.util.List;
/** Implements {@link ProtobufList} for non-primitive and {@link String} types. */
final class ProtobufArrayList<E> extends AbstractProtobufList<E> {
private static final ProtobufArrayList<Object> EMPTY_LIST = new ProtobufArrayList<Object>();
static {
EMPTY_LIST.makeImmutable();
}
@SuppressWarnings("unchecked") // Guaranteed safe by runtime.
public static <E> ProtobufArrayList<E> emptyList() {
return (ProtobufArrayList<E>) EMPTY_LIST;
}
private final List<E> list;
ProtobufArrayList() {
this(new ArrayList<E>(DEFAULT_CAPACITY));
}
private ProtobufArrayList(List<E> list) {
this.list = list;
}
@Override
public ProtobufArrayList<E> mutableCopyWithCapacity(int capacity) {
if (capacity < size()) {
throw new IllegalArgumentException();
}
List<E> newList = new ArrayList<E>(capacity);
newList.addAll(list);
return new ProtobufArrayList<E>(newList);
}
@Override
public void add(int index, E element) {
ensureIsMutable();
list.add(index, element);
modCount++;
}
@Override
public E get(int index) {
return list.get(index);
}
@Override
public E remove(int index) {
ensureIsMutable();
E toReturn = list.remove(index);
modCount++;
return toReturn;
}
@Override
public E set(int index, E element) {
ensureIsMutable();
E toReturn = list.set(index, element);
modCount++;
return toReturn;
}
@Override
public int size() {
return list.size();
}
}
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