1/*
2 * Copyright (C) 2012 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef IndexingHeaderInlines_h
27#define IndexingHeaderInlines_h
28
29#include "ArrayStorage.h"
30#include "IndexingHeader.h"
31#include "Structure.h"
32
33namespace JSC {
34
35inline size_t IndexingHeader::preCapacity(Structure* structure)
36{
37    if (LIKELY(!hasArrayStorage(structure->indexingType())))
38        return 0;
39
40    return arrayStorage()->m_indexBias;
41}
42
43inline size_t IndexingHeader::indexingPayloadSizeInBytes(Structure* structure)
44{
45    switch (structure->indexingType()) {
46    case ALL_UNDECIDED_INDEXING_TYPES:
47    case ALL_INT32_INDEXING_TYPES:
48    case ALL_DOUBLE_INDEXING_TYPES:
49    case ALL_CONTIGUOUS_INDEXING_TYPES:
50        return vectorLength() * sizeof(EncodedJSValue);
51
52    case ALL_ARRAY_STORAGE_INDEXING_TYPES:
53        return ArrayStorage::sizeFor(arrayStorage()->vectorLength());
54
55    default:
56        ASSERT(!hasIndexedProperties(structure->indexingType()));
57        return 0;
58    }
59}
60
61} // namespace JSC
62
63#endif // IndexingHeaderInlines_h
64
65