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Bug 989320 - Add cycle collection support for MFBT EnumeratedArray - r=mccr8

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This commit is contained in:
Benoit Jacob 2014-04-25 22:34:03 -04:00
parent 3acdf1fc29
commit 48114cd838
2 changed files with 44 additions and 0 deletions
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43
xpcom/glue/EnumeratedArrayCycleCollection.h Normal file
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@ -0,0 +1,43 @@
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef EnumeratedArrayCycleCollection_h_
#define EnumeratedArrayCycleCollection_h_
#include "mozilla/EnumeratedArray.h"
#include "nsCycleCollectionTraversalCallback.h"
template <typename IndexType,
MOZ_TEMPLATE_ENUM_CLASS_ENUM_TYPE(IndexType) SizeAsEnumValue,
typename ValueType>
inline void
ImplCycleCollectionUnlink(mozilla::EnumeratedArray<IndexType,
SizeAsEnumValue,
ValueType>& aField)
{
for (size_t i = 0; i < size_t(SizeAsEnumValue); i++) {
aField[IndexType(i)] = nullptr;
}
}
template <typename IndexType,
MOZ_TEMPLATE_ENUM_CLASS_ENUM_TYPE(IndexType) SizeAsEnumValue,
typename ValueType>
inline void
ImplCycleCollectionTraverse(nsCycleCollectionTraversalCallback& aCallback,
mozilla::EnumeratedArray<IndexType,
SizeAsEnumValue,
ValueType>& aField,
const char* aName,
uint32_t aFlags = 0)
{
aFlags |= CycleCollectionEdgeNameArrayFlag;
for (size_t i = 0; i < size_t(SizeAsEnumValue); ++i) {
ImplCycleCollectionTraverse(aCallback, aField[IndexType(i)], aName, aFlags);
}
}
#endif // EnumeratedArrayCycleCollection_h_

1
xpcom/glue/moz.build
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@ -69,6 +69,7 @@ EXPORTS.mozilla += [
'BlockingResourceBase.h',
'CondVar.h',
'DeadlockDetector.h',
'EnumeratedArrayCycleCollection.h',
'FileUtils.h',
'GenericFactory.h',
'HoldDropJSObjects.h',