namespace blink {
- class SpaceSplitStringData : public RefCounted<SpaceSplitStringData> {
+class SpaceSplitString {
+public:
+ SpaceSplitString() { }
+ SpaceSplitString(const AtomicString& string, bool shouldFoldCase) { set(string, shouldFoldCase); }
+
+ bool operator!=(const SpaceSplitString& other) const { return m_data != other.m_data; }
+
+ void set(const AtomicString&, bool shouldFoldCase);
+ 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 { ASSERT_WITH_SECURITY_IMPLICATION(i < size()); return (*m_data)[i]; }
+
+private:
+ class Data : public RefCounted<Data> {
public:
- static PassRefPtr<SpaceSplitStringData> create(const AtomicString&);
- static PassRefPtr<SpaceSplitStringData> createUnique(const SpaceSplitStringData&);
+ static PassRefPtr<Data> create(const AtomicString&);
+ static PassRefPtr<Data> createUnique(const Data&);
- ~SpaceSplitStringData();
+ ~Data();
bool contains(const AtomicString& string)
{
return false;
}
- bool containsAll(SpaceSplitStringData&);
+ bool containsAll(Data&);
void add(const AtomicString&);
void remove(unsigned index);
const AtomicString& operator[](size_t i) { ASSERT_WITH_SECURITY_IMPLICATION(i < size()); return m_vector[i]; }
private:
- explicit SpaceSplitStringData(const AtomicString&);
- explicit SpaceSplitStringData(const SpaceSplitStringData&);
+ explicit Data(const AtomicString&);
+ explicit Data(const Data&);
void createVector(const String&);
template <typename CharacterType>
AtomicString m_keyString;
Vector<AtomicString, 4> m_vector;
};
+ typedef HashMap<AtomicString, Data*> DataMap;
- class SpaceSplitString {
- public:
- SpaceSplitString() { }
- SpaceSplitString(const AtomicString& string, bool shouldFoldCase) { set(string, shouldFoldCase); }
-
- bool operator!=(const SpaceSplitString& other) const { return m_data != other.m_data; }
+ static DataMap& sharedDataMap();
- void set(const AtomicString&, bool shouldFoldCase);
- void clear() { m_data.clear(); }
+ void ensureUnique()
+ {
+ if (m_data && !m_data->isUnique())
+ m_data = Data::createUnique(*m_data);
+ }
- 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 { ASSERT_WITH_SECURITY_IMPLICATION(i < size()); return (*m_data)[i]; }
-
- private:
- void ensureUnique()
- {
- if (m_data && !m_data->isUnique())
- m_data = SpaceSplitStringData::createUnique(*m_data);
- }
-
- RefPtr<SpaceSplitStringData> m_data;
- };
+ RefPtr<Data> m_data;
+};
} // namespace blink