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Unified Diff: Source/wtf/RefPtrHashMap.h

Issue 184233006: Remove RefPtrHashMap (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Created 6 years, 10 months ago
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Index: Source/wtf/RefPtrHashMap.h
diff --git a/Source/wtf/RefPtrHashMap.h b/Source/wtf/RefPtrHashMap.h
deleted file mode 100644
index 009bbc4f5f38ca43e5c3fbc20025a8c46b6142eb..0000000000000000000000000000000000000000
--- a/Source/wtf/RefPtrHashMap.h
+++ /dev/null
@@ -1,330 +0,0 @@
-/*
- * Copyright (C) 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- *
- */
-
-#ifndef RefPtrHashMap_h
-#define RefPtrHashMap_h
-
-#include "wtf/DefaultAllocator.h"
-
-namespace WTF {
-
- // This specialization is a copy of HashMap for use with RefPtr keys, with overloaded functions
- // to allow for lookup by pointer instead of RefPtr, avoiding ref-count churn.
-
- // FIXME: Find a way to do this with traits that doesn't require a copy of the HashMap template.
-
- template<typename T, typename MappedArg, typename HashArg, typename KeyTraitsArg, typename MappedTraitsArg>
- class HashMap<RefPtr<T>, MappedArg, HashArg, KeyTraitsArg, MappedTraitsArg, DefaultAllocator> {
- private:
- typedef KeyTraitsArg KeyTraits;
- typedef MappedTraitsArg MappedTraits;
- typedef KeyValuePairHashTraits<KeyTraits, MappedTraits> ValueTraits;
-
- public:
- typedef typename KeyTraits::TraitType KeyType;
- typedef T* RawKeyType;
- typedef typename MappedTraits::TraitType MappedType;
- typedef typename ValueTraits::TraitType ValueType;
-
- private:
- typedef typename MappedTraits::PassInType MappedPassInType;
- typedef typename MappedTraits::PassOutType MappedPassOutType;
- typedef typename MappedTraits::PeekOutType MappedPeekType;
-
- typedef typename ReferenceTypeMaker<MappedPassInType>::ReferenceType MappedPassInReferenceType;
-
- typedef HashArg HashFunctions;
-
- typedef HashTable<KeyType, ValueType, KeyValuePairKeyExtractor,
- HashFunctions, ValueTraits, KeyTraits, DefaultAllocator> HashTableType;
-
- typedef HashMapTranslator<ValueTraits, HashFunctions>
- Translator;
-
- public:
- typedef HashTableIteratorAdapter<HashTableType, ValueType> iterator;
- typedef HashTableConstIteratorAdapter<HashTableType, ValueType> const_iterator;
- typedef typename HashTableType::AddResult AddResult;
-
- void swap(HashMap&);
-
- unsigned size() const;
- unsigned capacity() const;
- bool isEmpty() const;
-
- // iterators iterate over pairs of keys and values
- iterator begin();
- iterator end();
- const_iterator begin() const;
- const_iterator end() const;
-
- iterator find(const KeyType&);
- iterator find(RawKeyType);
- const_iterator find(const KeyType&) const;
- const_iterator find(RawKeyType) const;
- bool contains(const KeyType&) const;
- bool contains(RawKeyType) const;
- MappedPeekType get(const KeyType&) const;
- MappedPeekType get(RawKeyType) const;
- MappedPeekType inlineGet(RawKeyType) const;
-
- // replaces value but not key if key is already present
- // return value is a pair of the iterator to the key location,
- // and a boolean that's true if a new value was actually added
- AddResult set(const KeyType&, MappedPassInType);
- AddResult set(RawKeyType, MappedPassInType);
-
- // does nothing if key is already present
- // return value is a pair of the iterator to the key location,
- // and a boolean that's true if a new value was actually added
- AddResult add(const KeyType&, MappedPassInType);
- AddResult add(RawKeyType, MappedPassInType);
-
- void remove(const KeyType&);
- void remove(RawKeyType);
- void remove(iterator);
- void clear();
-
- MappedPassOutType take(const KeyType&); // efficient combination of get with remove
- MappedPassOutType take(RawKeyType); // efficient combination of get with remove
-
- private:
- AddResult inlineAdd(const KeyType&, MappedPassInReferenceType);
- AddResult inlineAdd(RawKeyType, MappedPassInReferenceType);
-
- HashTableType m_impl;
- };
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline void HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::swap(HashMap& other)
- {
- m_impl.swap(other.m_impl);
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline unsigned HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::size() const
- {
- return m_impl.size();
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline unsigned HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::capacity() const
- {
- return m_impl.capacity();
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline bool HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::isEmpty() const
- {
- return m_impl.isEmpty();
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline typename HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::iterator HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::begin()
- {
- return m_impl.begin();
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline typename HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::iterator HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::end()
- {
- return m_impl.end();
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline typename HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::const_iterator HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::begin() const
- {
- return m_impl.begin();
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline typename HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::const_iterator HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::end() const
- {
- return m_impl.end();
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline typename HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::iterator HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::find(const KeyType& key)
- {
- return m_impl.find(key);
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline typename HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::iterator HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::find(RawKeyType key)
- {
- return m_impl.template find<Translator>(key);
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline typename HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::const_iterator HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::find(const KeyType& key) const
- {
- return m_impl.find(key);
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline typename HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::const_iterator HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::find(RawKeyType key) const
- {
- return m_impl.template find<Translator>(key);
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline bool HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::contains(const KeyType& key) const
- {
- return m_impl.contains(key);
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline bool HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::contains(RawKeyType key) const
- {
- return m_impl.template contains<Translator>(key);
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline typename HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::AddResult
- HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::inlineAdd(const KeyType& key, MappedPassInReferenceType mapped)
- {
- return m_impl.template add<Translator>(key, mapped);
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline typename HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::AddResult
- HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::inlineAdd(RawKeyType key, MappedPassInReferenceType mapped)
- {
- return m_impl.template add<Translator>(key, mapped);
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- typename HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::AddResult
- HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::set(const KeyType& key, MappedPassInType mapped)
- {
- AddResult result = inlineAdd(key, mapped);
- if (!result.isNewEntry) {
- // The inlineAdd call above found an existing hash table entry; we need to set the mapped value.
- MappedTraits::store(mapped, result.storedValue->value);
- }
- return result;
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- typename HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::AddResult
- HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::set(RawKeyType key, MappedPassInType mapped)
- {
- AddResult result = inlineAdd(key, mapped);
- if (!result.isNewEntry) {
- // The inlineAdd call above found an existing hash table entry; we need to set the mapped value.
- MappedTraits::store(mapped, result.storedValue->value);
- }
- return result;
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- typename HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::AddResult
- HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::add(const KeyType& key, MappedPassInType mapped)
- {
- return inlineAdd(key, mapped);
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- typename HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::AddResult
- HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::add(RawKeyType key, MappedPassInType mapped)
- {
- return inlineAdd(key, mapped);
- }
-
- template<typename T, typename U, typename V, typename W, typename MappedTraits>
- typename HashMap<RefPtr<T>, U, V, W, MappedTraits, DefaultAllocator>::MappedPeekType
- HashMap<RefPtr<T>, U, V, W, MappedTraits, DefaultAllocator>::get(const KeyType& key) const
- {
- ValueType* entry = const_cast<HashTableType&>(m_impl).lookup(key);
- if (!entry)
- return MappedTraits::peek(MappedTraits::emptyValue());
- return MappedTraits::peek(entry->value);
- }
-
- template<typename T, typename U, typename V, typename W, typename MappedTraits>
- typename HashMap<RefPtr<T>, U, V, W, MappedTraits, DefaultAllocator>::MappedPeekType
- inline HashMap<RefPtr<T>, U, V, W, MappedTraits, DefaultAllocator>::inlineGet(RawKeyType key) const
- {
- ValueType* entry = const_cast<HashTableType&>(m_impl).template lookup<Translator>(key);
- if (!entry)
- return MappedTraits::peek(MappedTraits::emptyValue());
- return MappedTraits::peek(entry->value);
- }
-
- template<typename T, typename U, typename V, typename W, typename MappedTraits>
- typename HashMap<RefPtr<T>, U, V, W, MappedTraits, DefaultAllocator>::MappedPeekType
- HashMap<RefPtr<T>, U, V, W, MappedTraits, DefaultAllocator>::get(RawKeyType key) const
- {
- return inlineGet(key);
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline void HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::remove(iterator it)
- {
- if (it.m_impl == m_impl.end())
- return;
- m_impl.remove(it.m_impl);
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline void HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::remove(const KeyType& key)
- {
- remove(find(key));
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline void HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::remove(RawKeyType key)
- {
- remove(find(key));
- }
-
- template<typename T, typename U, typename V, typename W, typename X>
- inline void HashMap<RefPtr<T>, U, V, W, X, DefaultAllocator>::clear()
- {
- m_impl.clear();
- }
-
- template<typename T, typename U, typename V, typename W, typename MappedTraits>
- typename HashMap<RefPtr<T>, U, V, W, MappedTraits, DefaultAllocator>::MappedPassOutType
- HashMap<RefPtr<T>, U, V, W, MappedTraits, DefaultAllocator>::take(const KeyType& key)
- {
- iterator it = find(key);
- if (it == end())
- return MappedTraits::passOut(MappedTraits::emptyValue());
- MappedPassOutType result = MappedTraits::passOut(it->value);
- remove(it);
- return result;
- }
-
- template<typename T, typename U, typename V, typename W, typename MappedTraits>
- typename HashMap<RefPtr<T>, U, V, W, MappedTraits, DefaultAllocator>::MappedPassOutType
- HashMap<RefPtr<T>, U, V, W, MappedTraits, DefaultAllocator>::take(RawKeyType key)
- {
- iterator it = find(key);
- if (it == end())
- return MappedTraits::passOut(MappedTraits::emptyValue());
- MappedPassOutType result = MappedTraits::passOut(it->value);
- remove(it);
- return result;
- }
-
-} // namespace WTF
-
-#endif // RefPtrHashMap_h
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