]> git.saurik.com Git - apple/javascriptcore.git/blame - runtime/IndexingHeaderInlines.h
JavaScriptCore-7600.1.4.17.5.tar.gz
[apple/javascriptcore.git] / runtime / IndexingHeaderInlines.h
CommitLineData
f9bf01c6 1/*
6fe7ccc8 2 * Copyright (C) 2012 Apple Inc. All rights reserved.
f9bf01c6
A
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
93a37866
A
26#ifndef IndexingHeaderInlines_h
27#define IndexingHeaderInlines_h
f9bf01c6 28
93a37866
A
29#include "ArrayStorage.h"
30#include "IndexingHeader.h"
31#include "Structure.h"
f9bf01c6
A
32
33namespace JSC {
34
93a37866 35inline size_t IndexingHeader::preCapacity(Structure* structure)
f9bf01c6 36{
81345200 37 if (LIKELY(!hasAnyArrayStorage(structure->indexingType())))
93a37866 38 return 0;
6fe7ccc8 39
93a37866
A
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 }
f9bf01c6
A
59}
60
6fe7ccc8 61} // namespace JSC
f9bf01c6 62
93a37866
A
63#endif // IndexingHeaderInlines_h
64