123 lines
4.6 KiB
C++
123 lines
4.6 KiB
C++
/*
|
|
* Copyright (C) 2006-2019 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.
|
|
*
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <wtf/text/UniquedStringImpl.h>
|
|
|
|
namespace WTF {
|
|
|
|
class AtomStringTable;
|
|
|
|
class AtomStringImpl final : public UniquedStringImpl {
|
|
public:
|
|
WTF_EXPORT_PRIVATE static RefPtr<AtomStringImpl> lookUp(const LChar*, unsigned length);
|
|
WTF_EXPORT_PRIVATE static RefPtr<AtomStringImpl> lookUp(const UChar*, unsigned length);
|
|
static RefPtr<AtomStringImpl> lookUp(StringImpl* string)
|
|
{
|
|
if (!string || string->isAtom())
|
|
return static_cast<AtomStringImpl*>(string);
|
|
return lookUpSlowCase(*string);
|
|
}
|
|
|
|
static void remove(AtomStringImpl*);
|
|
|
|
WTF_EXPORT_PRIVATE static RefPtr<AtomStringImpl> add(const LChar*);
|
|
ALWAYS_INLINE static RefPtr<AtomStringImpl> add(const char* s) { return add(reinterpret_cast<const LChar*>(s)); };
|
|
WTF_EXPORT_PRIVATE static RefPtr<AtomStringImpl> add(const LChar*, unsigned length);
|
|
WTF_EXPORT_PRIVATE static RefPtr<AtomStringImpl> add(const UChar*, unsigned length);
|
|
ALWAYS_INLINE static RefPtr<AtomStringImpl> add(const char* s, unsigned length) { return add(reinterpret_cast<const LChar*>(s), length); };
|
|
WTF_EXPORT_PRIVATE static RefPtr<AtomStringImpl> add(const UChar*);
|
|
WTF_EXPORT_PRIVATE static RefPtr<AtomStringImpl> add(StringImpl*, unsigned offset, unsigned length);
|
|
ALWAYS_INLINE static RefPtr<AtomStringImpl> add(StringImpl* string)
|
|
{
|
|
if (!string)
|
|
return nullptr;
|
|
return add(*string);
|
|
}
|
|
WTF_EXPORT_PRIVATE static RefPtr<AtomStringImpl> add(const StaticStringImpl*);
|
|
WTF_EXPORT_PRIVATE static Ref<AtomStringImpl> addLiteral(const char* characters, unsigned length);
|
|
|
|
// Returns null if the input data contains an invalid UTF-8 sequence.
|
|
static RefPtr<AtomStringImpl> addUTF8(const char* start, const char* end);
|
|
|
|
#if USE(CF)
|
|
WTF_EXPORT_PRIVATE static RefPtr<AtomStringImpl> add(CFStringRef);
|
|
#endif
|
|
|
|
template<typename StringTableProvider>
|
|
ALWAYS_INLINE static RefPtr<AtomStringImpl> addWithStringTableProvider(StringTableProvider& stringTableProvider, StringImpl* string)
|
|
{
|
|
if (!string)
|
|
return nullptr;
|
|
return add(*stringTableProvider.atomStringTable(), *string);
|
|
}
|
|
|
|
#if ASSERT_ENABLED
|
|
WTF_EXPORT_PRIVATE static bool isInAtomStringTable(StringImpl*);
|
|
#endif
|
|
|
|
private:
|
|
AtomStringImpl() = delete;
|
|
|
|
ALWAYS_INLINE static Ref<AtomStringImpl> add(StringImpl& string)
|
|
{
|
|
if (string.isAtom()) {
|
|
ASSERT_WITH_MESSAGE(!string.length() || isInAtomStringTable(&string), "The atom string comes from an other thread!");
|
|
return static_cast<AtomStringImpl&>(string);
|
|
}
|
|
return addSlowCase(string);
|
|
}
|
|
|
|
ALWAYS_INLINE static Ref<AtomStringImpl> add(AtomStringTable& stringTable, StringImpl& string)
|
|
{
|
|
if (string.isAtom()) {
|
|
ASSERT_WITH_MESSAGE(!string.length() || isInAtomStringTable(&string), "The atom string comes from an other thread!");
|
|
return static_cast<AtomStringImpl&>(string);
|
|
}
|
|
return addSlowCase(stringTable, string);
|
|
}
|
|
|
|
WTF_EXPORT_PRIVATE static Ref<AtomStringImpl> addSlowCase(StringImpl&);
|
|
WTF_EXPORT_PRIVATE static Ref<AtomStringImpl> addSlowCase(AtomStringTable&, StringImpl&);
|
|
|
|
WTF_EXPORT_PRIVATE static RefPtr<AtomStringImpl> lookUpSlowCase(StringImpl&);
|
|
};
|
|
|
|
#if ASSERT_ENABLED
|
|
|
|
// AtomStringImpls created from StaticStringImpl will ASSERT in the generic ValueCheck<T>::checkConsistency,
|
|
// as they are not allocated by fastMalloc. We don't currently have any way to detect that case, so we don't
|
|
// do any consistency check for AtomStringImpl*.
|
|
|
|
template<> struct ValueCheck<AtomStringImpl*> {
|
|
static void checkConsistency(const AtomStringImpl*) { }
|
|
};
|
|
|
|
template<> struct ValueCheck<const AtomStringImpl*> {
|
|
static void checkConsistency(const AtomStringImpl*) { }
|
|
};
|
|
|
|
#endif // ASSERT_ENABLED
|
|
|
|
}
|
|
|
|
using WTF::AtomStringImpl;
|