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Side by Side Diff: third_party/WebKit/Source/wtf/HashTable.h

Issue 1433983002: Rename IsAllowOnlyInlineAllocation<T> to AllowsOnlyPlacementNew<T>. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 1 month ago
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1 /* 1 /*
2 * Copyright (C) 2005, 2006, 2007, 2008, 2011, 2012 Apple Inc. All rights reserv ed. 2 * Copyright (C) 2005, 2006, 2007, 2008, 2011, 2012 Apple Inc. All rights reserv ed.
3 * Copyright (C) 2008 David Levin <levin@chromium.org> 3 * Copyright (C) 2008 David Levin <levin@chromium.org>
4 * 4 *
5 * This library is free software; you can redistribute it and/or 5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public 6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either 7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version. 8 * version 2 of the License, or (at your option) any later version.
9 * 9 *
10 * This library is distributed in the hope that it will be useful, 10 * This library is distributed in the hope that it will be useful,
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995 ValueType* result; 995 ValueType* result;
996 // Assert that we will not use memset on things with a vtable entry. The 996 // Assert that we will not use memset on things with a vtable entry. The
997 // compiler will also check this on some platforms. We would like to check 997 // compiler will also check this on some platforms. We would like to check
998 // this on the whole value (key-value pair), but IsPolymorphic will return 998 // this on the whole value (key-value pair), but IsPolymorphic will return
999 // false for a pair of two types, even if one of the components is 999 // false for a pair of two types, even if one of the components is
1000 // polymorphic. 1000 // polymorphic.
1001 static_assert(!Traits::emptyValueIsZero || !IsPolymorphic<KeyType>::value, " empty value cannot be zero for things with a vtable"); 1001 static_assert(!Traits::emptyValueIsZero || !IsPolymorphic<KeyType>::value, " empty value cannot be zero for things with a vtable");
1002 1002
1003 #if ENABLE(OILPAN) 1003 #if ENABLE(OILPAN)
1004 static_assert(Allocator::isGarbageCollected 1004 static_assert(Allocator::isGarbageCollected
1005 || ((!IsAllowOnlyInlineAllocation<KeyType>::value || !NeedsTracing<KeyTy pe>::value) 1005 || ((!AllowsOnlyPlacementNew<KeyType>::value || !NeedsTracing<KeyType>:: value)
1006 && (!IsAllowOnlyInlineAllocation<ValueType>::value || !NeedsTracing<Valu eType>::value)) 1006 && (!AllowsOnlyPlacementNew<ValueType>::value || !NeedsTracing<ValueType >::value))
1007 , "Cannot put DISALLOW_NEW_EXCEPT_PLACEMENT_NEW objects that have trace methods into an off-heap HashTable"); 1007 , "Cannot put DISALLOW_NEW_EXCEPT_PLACEMENT_NEW objects that have trace methods into an off-heap HashTable");
1008 #endif 1008 #endif
1009 if (Traits::emptyValueIsZero) { 1009 if (Traits::emptyValueIsZero) {
1010 result = Allocator::template allocateZeroedHashTableBacking<ValueType, H ashTable>(allocSize); 1010 result = Allocator::template allocateZeroedHashTableBacking<ValueType, H ashTable>(allocSize);
1011 } else { 1011 } else {
1012 result = Allocator::template allocateHashTableBacking<ValueType, HashTab le>(allocSize); 1012 result = Allocator::template allocateHashTableBacking<ValueType, HashTab le>(allocSize);
1013 for (unsigned i = 0; i < size; i++) 1013 for (unsigned i = 0; i < size; i++)
1014 initializeBucket(result[i]); 1014 initializeBucket(result[i]);
1015 } 1015 }
1016 return result; 1016 return result;
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1489 CollectionIterator end(toBeRemoved.end()); 1489 CollectionIterator end(toBeRemoved.end());
1490 for (CollectionIterator it(toBeRemoved.begin()); it != end; ++it) 1490 for (CollectionIterator it(toBeRemoved.begin()); it != end; ++it)
1491 collection.remove(*it); 1491 collection.remove(*it);
1492 } 1492 }
1493 1493
1494 } // namespace WTF 1494 } // namespace WTF
1495 1495
1496 #include "wtf/HashIterators.h" 1496 #include "wtf/HashIterators.h"
1497 1497
1498 #endif // WTF_HashTable_h 1498 #endif // WTF_HashTable_h
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