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/*
* Copyright (C) 2007, 2008, 2010, 2011, 2012 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#ifndef SpaceSplitString_h
#define SpaceSplitString_h
#include "wtf/Allocator.h"
#include "wtf/RefCounted.h"
#include "wtf/Vector.h"
#include "wtf/text/AtomicString.h"
namespace blink {
class SpaceSplitString {
USING_FAST_MALLOC(SpaceSplitString);
public:
enum CaseFolding { ShouldNotFoldCase, ShouldFoldCase };
SpaceSplitString() {}
SpaceSplitString(const AtomicString& string, CaseFolding caseFolding) {
set(string, caseFolding);
}
bool operator!=(const SpaceSplitString& other) const {
return m_data != other.m_data;
}
void set(const AtomicString&, CaseFolding);
void clear() { m_data.clear(); }
bool contains(const AtomicString& string) const {
return m_data && m_data->contains(string);
}
bool containsAll(const SpaceSplitString& names) const {
return !names.m_data || (m_data && m_data->containsAll(*names.m_data));
}
void add(const AtomicString&);
bool remove(const AtomicString&);
size_t size() const { return m_data ? m_data->size() : 0; }
bool isNull() const { return !m_data; }
const AtomicString& operator[](size_t i) const { return (*m_data)[i]; }
private:
class Data : public RefCounted<Data> {
public:
static PassRefPtr<Data> create(const AtomicString&);
static PassRefPtr<Data> createUnique(const Data&);
~Data();
bool contains(const AtomicString& string) {
for (const auto& item : m_vector) {
if (item == string)
return true;
}
return false;
}
bool containsAll(Data&);
void add(const AtomicString&);
void remove(unsigned index);
bool isUnique() const { return m_keyString.isNull(); }
size_t size() const { return m_vector.size(); }
const AtomicString& operator[](size_t i) { return m_vector[i]; }
private:
explicit Data(const AtomicString&);
explicit Data(const Data&);
void createVector(const String&);
template <typename CharacterType>
inline void createVector(const CharacterType*, unsigned);
AtomicString m_keyString;
Vector<AtomicString, 4> m_vector;
};
typedef HashMap<AtomicString, Data*> DataMap;
static DataMap& sharedDataMap();
void ensureUnique() {
if (m_data && !m_data->isUnique())
m_data = Data::createUnique(*m_data);
}
RefPtr<Data> m_data;
};
} // namespace blink
#endif // SpaceSplitString_h
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