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