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/*
* Copyright (C) 2017 Yusuke Suzuki <utatane.tea@gmail.com>.
* Copyright (C) 2019-2023 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "BuiltinNames.h"
#include "IdentifierInlines.h"
#include <wtf/TZoneMallocInlines.h>
namespace JSC {
namespace Symbols {
#define INITIALIZE_BUILTIN_STATIC_SYMBOLS(name) SymbolImpl::StaticSymbolImpl name##Symbol { "Symbol." #name };
JSC_COMMON_PRIVATE_IDENTIFIERS_EACH_WELL_KNOWN_SYMBOL(INITIALIZE_BUILTIN_STATIC_SYMBOLS)
#undef INITIALIZE_BUILTIN_STATIC_SYMBOLS
SymbolImpl::StaticSymbolImpl intlLegacyConstructedSymbol { "IntlLegacyConstructedSymbol" };
#define INITIALIZE_BUILTIN_PRIVATE_NAMES(name) SymbolImpl::StaticSymbolImpl name##PrivateName { #name, SymbolImpl::s_flagIsPrivate };
JSC_FOREACH_BUILTIN_FUNCTION_NAME(INITIALIZE_BUILTIN_PRIVATE_NAMES)
JSC_COMMON_PRIVATE_IDENTIFIERS_EACH_PROPERTY_NAME(INITIALIZE_BUILTIN_PRIVATE_NAMES)
#undef INITIALIZE_BUILTIN_PRIVATE_NAMES
SymbolImpl::StaticSymbolImpl dollarVMPrivateName { "$vm", SymbolImpl::s_flagIsPrivate };
SymbolImpl::StaticSymbolImpl polyProtoPrivateName { "PolyProto", SymbolImpl::s_flagIsPrivate };
} // namespace Symbols
#define INITIALIZE_BUILTIN_NAMES_IN_JSC(name) , m_##name(JSC::Identifier::fromString(vm, #name ""_s))
#define INITIALIZE_BUILTIN_SYMBOLS_IN_JSC(name) \
, m_##name##Symbol(JSC::Identifier::fromUid(vm, &static_cast<SymbolImpl&>(JSC::Symbols::name##Symbol))) \
, m_##name##SymbolPrivateIdentifier(JSC::Identifier::fromString(vm, #name ""_s))
#define INITIALIZE_PUBLIC_TO_PRIVATE_ENTRY(name) \
do { \
SymbolImpl* symbol = &static_cast<SymbolImpl&>(JSC::Symbols::name##PrivateName); \
checkPublicToPrivateMapConsistency(symbol); \
m_privateNameSet.add(symbol); \
} while (0);
#define INITIALIZE_WELL_KNOWN_SYMBOL_PUBLIC_TO_PRIVATE_ENTRY(name) \
do { \
SymbolImpl* symbol = static_cast<SymbolImpl*>(m_##name##Symbol.impl()); \
m_wellKnownSymbolsMap.add(m_##name##SymbolPrivateIdentifier.impl(), symbol); \
} while (0);
WTF_MAKE_TZONE_ALLOCATED_IMPL(BuiltinNames);
// We treat the dollarVM name as a special case below for $vm (because CommonIdentifiers does not
// yet support the $ character).
BuiltinNames::BuiltinNames(VM& vm, CommonIdentifiers* commonIdentifiers)
: m_emptyIdentifier(commonIdentifiers->emptyIdentifier)
JSC_FOREACH_BUILTIN_FUNCTION_NAME(INITIALIZE_BUILTIN_NAMES_IN_JSC)
JSC_COMMON_PRIVATE_IDENTIFIERS_EACH_PROPERTY_NAME(INITIALIZE_BUILTIN_NAMES_IN_JSC)
JSC_COMMON_PRIVATE_IDENTIFIERS_EACH_WELL_KNOWN_SYMBOL(INITIALIZE_BUILTIN_SYMBOLS_IN_JSC)
, m_intlLegacyConstructedSymbol(JSC::Identifier::fromUid(vm, &static_cast<SymbolImpl&>(Symbols::intlLegacyConstructedSymbol)))
, m_dollarVMName(Identifier::fromString(vm, "$vm"_s))
, m_dollarVMPrivateName(Identifier::fromUid(vm, &static_cast<SymbolImpl&>(Symbols::dollarVMPrivateName)))
, m_polyProtoPrivateName(Identifier::fromUid(vm, &static_cast<SymbolImpl&>(Symbols::polyProtoPrivateName)))
{
JSC_FOREACH_BUILTIN_FUNCTION_NAME(INITIALIZE_PUBLIC_TO_PRIVATE_ENTRY)
JSC_COMMON_PRIVATE_IDENTIFIERS_EACH_PROPERTY_NAME(INITIALIZE_PUBLIC_TO_PRIVATE_ENTRY)
JSC_COMMON_PRIVATE_IDENTIFIERS_EACH_WELL_KNOWN_SYMBOL(INITIALIZE_WELL_KNOWN_SYMBOL_PUBLIC_TO_PRIVATE_ENTRY)
m_privateNameSet.add(static_cast<SymbolImpl*>(m_dollarVMPrivateName.impl()));
}
#undef INITIALIZE_BUILTIN_NAMES_IN_JSC
#undef INITIALIZE_BUILTIN_SYMBOLS_IN_JSC
#undef INITIALIZE_PUBLIC_TO_PRIVATE_ENTRY
#undef INITIALIZE_WELL_KNOWN_SYMBOL_PUBLIC_TO_PRIVATE_ENTRY
using LCharBuffer = WTF::HashTranslatorCharBuffer<LChar>;
using UCharBuffer = WTF::HashTranslatorCharBuffer<UChar>;
template<typename CharacterType>
struct CharBufferSeacher {
using Buffer = WTF::HashTranslatorCharBuffer<CharacterType>;
static unsigned hash(const Buffer& buf)
{
return buf.hash;
}
static bool equal(const String& str, const Buffer& buf)
{
return WTF::equal(str.impl(), buf.characters);
}
};
template<typename CharacterType>
static PrivateSymbolImpl* lookUpPrivateNameImpl(const BuiltinNames::PrivateNameSet& set, const WTF::HashTranslatorCharBuffer<CharacterType>& buffer)
{
auto iterator = set.find<CharBufferSeacher<CharacterType>>(buffer);
if (iterator == set.end())
return nullptr;
StringImpl* impl = iterator->impl();
ASSERT(impl->isSymbol());
SymbolImpl* symbol = static_cast<SymbolImpl*>(impl);
ASSERT(symbol->isPrivate());
return static_cast<PrivateSymbolImpl*>(symbol);
}
template<typename CharacterType>
static SymbolImpl* lookUpWellKnownSymbolImpl(const BuiltinNames::WellKnownSymbolMap& map, const WTF::HashTranslatorCharBuffer<CharacterType>& buffer)
{
auto iterator = map.find<CharBufferSeacher<CharacterType>>(buffer);
if (iterator == map.end())
return nullptr;
return iterator->value;
}
PrivateSymbolImpl* BuiltinNames::lookUpPrivateName(std::span<const LChar> characters) const
{
LCharBuffer buffer { characters };
return lookUpPrivateNameImpl(m_privateNameSet, buffer);
}
PrivateSymbolImpl* BuiltinNames::lookUpPrivateName(std::span<const UChar> characters) const
{
UCharBuffer buffer { characters };
return lookUpPrivateNameImpl(m_privateNameSet, buffer);
}
PrivateSymbolImpl* BuiltinNames::lookUpPrivateName(const String& string) const
{
if (string.is8Bit()) {
LCharBuffer buffer { string.span8(), string.hash() };
return lookUpPrivateNameImpl(m_privateNameSet, buffer);
}
UCharBuffer buffer { string.span16(), string.hash() };
return lookUpPrivateNameImpl(m_privateNameSet, buffer);
}
SymbolImpl* BuiltinNames::lookUpWellKnownSymbol(std::span<const LChar> characters) const
{
LCharBuffer buffer { characters };
return lookUpWellKnownSymbolImpl(m_wellKnownSymbolsMap, buffer);
}
SymbolImpl* BuiltinNames::lookUpWellKnownSymbol(std::span<const UChar> characters) const
{
UCharBuffer buffer { characters };
return lookUpWellKnownSymbolImpl(m_wellKnownSymbolsMap, buffer);
}
SymbolImpl* BuiltinNames::lookUpWellKnownSymbol(const String& string) const
{
if (string.is8Bit()) {
LCharBuffer buffer { string.span8(), string.hash() };
return lookUpWellKnownSymbolImpl(m_wellKnownSymbolsMap, buffer);
}
UCharBuffer buffer { string.span16(), string.hash() };
return lookUpWellKnownSymbolImpl(m_wellKnownSymbolsMap, buffer);
}
} // namespace JSC
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