Introduce UniquedStringImpl and SymbolImpl to separate symbolic strings from AtomicSt...

Introduce UniquedStringImpl and SymbolImpl to separate symbolic strings from AtomicStringImpl
https://bugs.webkit.org/show_bug.cgi?id=144848

Reviewed by Darin Adler.

Source/JavaScriptCore:

Use UniquedStringImpl, SymbolImpl and AtomicStringImpl.

* API/JSCallbackObject.h:
* builtins/BuiltinNames.h:
(JSC::BuiltinNames::isPrivateName):
* bytecode/BytecodeIntrinsicRegistry.h:
* bytecode/CodeBlock.cpp:
(JSC::CodeBlock::CodeBlock):
* bytecode/ComplexGetStatus.cpp:
(JSC::ComplexGetStatus::computeFor):
* bytecode/ComplexGetStatus.h:
* bytecode/GetByIdStatus.cpp:
(JSC::GetByIdStatus::computeFromLLInt):
(JSC::GetByIdStatus::computeFor):
(JSC::GetByIdStatus::computeForStubInfo):
* bytecode/GetByIdStatus.h:
* bytecode/Instruction.h:
(JSC::Instruction::Instruction):
* bytecode/PutByIdStatus.cpp:
(JSC::PutByIdStatus::computeFromLLInt):
(JSC::PutByIdStatus::computeFor):
(JSC::PutByIdStatus::computeForStubInfo):
* bytecode/PutByIdStatus.h:
* bytecompiler/BytecodeGenerator.cpp:
(JSC::BytecodeGenerator::BytecodeGenerator):
(JSC::BytecodeGenerator::visibleNameForParameter):
(JSC::BytecodeGenerator::hasConstant):
(JSC::BytecodeGenerator::addConstant):
* bytecompiler/BytecodeGenerator.h:
* bytecompiler/NodesCodegen.cpp:
(JSC::PropertyListNode::emitBytecode):
* dfg/DFGByteCodeParser.cpp:
(JSC::DFG::ByteCodeParser::parseBlock):
(JSC::DFG::ByteCodeParser::InlineStackEntry::InlineStackEntry):
* dfg/DFGDesiredIdentifiers.cpp:
(JSC::DFG::DesiredIdentifiers::addLazily):
(JSC::DFG::DesiredIdentifiers::at):
(JSC::DFG::DesiredIdentifiers::reallyAdd):
* dfg/DFGDesiredIdentifiers.h:
(JSC::DFG::DesiredIdentifiers::operator[]):
* dfg/DFGFixupPhase.cpp:
(JSC::DFG::FixupPhase::fixupNode):
(JSC::DFG::FixupPhase::isStringPrototypeMethodSane):
* dfg/DFGSpeculativeJIT.cpp:
(JSC::DFG::SpeculativeJIT::compileIn):
* dfg/DFGSpeculativeJIT.h:
(JSC::DFG::SpeculativeJIT::identifierUID):
(JSC::DFG::SpeculativeJIT::callOperation):
* ftl/FTLCompile.cpp:
(JSC::FTL::mmAllocateDataSection):
* ftl/FTLInlineCacheDescriptor.h:
(JSC::FTL::InlineCacheDescriptor::InlineCacheDescriptor):
(JSC::FTL::InlineCacheDescriptor::uid):
(JSC::FTL::GetByIdDescriptor::GetByIdDescriptor):
(JSC::FTL::PutByIdDescriptor::PutByIdDescriptor):
(JSC::FTL::CheckInDescriptor::CheckInDescriptor):
* ftl/FTLIntrinsicRepository.h:
* ftl/FTLLowerDFGToLLVM.cpp:
(JSC::FTL::LowerDFGToLLVM::compilePutById):
(JSC::FTL::LowerDFGToLLVM::compileIn):
(JSC::FTL::LowerDFGToLLVM::compileMaterializeCreateActivation):
(JSC::FTL::LowerDFGToLLVM::getById):
* ftl/FTLOperations.cpp:
(JSC::FTL::operationMaterializeObjectInOSR):
* ftl/FTLSlowPathCall.cpp:
(JSC::FTL::callOperation):
* ftl/FTLSlowPathCall.h:
* jit/JIT.h:
* jit/JITInlines.h:
(JSC::JIT::callOperation):
* jit/JITOperations.cpp:
* jit/JITOperations.h:
* parser/Nodes.cpp:
(JSC::ProgramNode::setClosedVariables):
* parser/Nodes.h:
(JSC::ScopeNode::captures):
(JSC::ScopeNode::setClosedVariables):
(JSC::ProgramNode::closedVariables):
* parser/Parser.cpp:
(JSC::Parser<LexerType>::parseInner):
(JSC::Parser<LexerType>::didFinishParsing):
(JSC::Parser<LexerType>::parseContinueStatement):
* parser/Parser.h:
(JSC::Scope::Scope):
(JSC::Scope::pushLabel):
(JSC::Scope::getLabel):
(JSC::Scope::declareCallee):
(JSC::Scope::declareVariable):
(JSC::Scope::declareParameter):
(JSC::Scope::declareBoundParameter):
(JSC::Scope::useVariable):
(JSC::Scope::copyCapturedVariablesToVector):
(JSC::Parser::closedVariables):
(JSC::ScopeLabelInfo::ScopeLabelInfo): Deleted.
* parser/SourceProviderCacheItem.h:
(JSC::SourceProviderCacheItem::usedVariables):
(JSC::SourceProviderCacheItem::writtenVariables):
(JSC::SourceProviderCacheItem::create):
* runtime/CommonIdentifiers.cpp:
(JSC::CommonIdentifiers::isPrivateName):
* runtime/CommonIdentifiers.h:
* runtime/Identifier.h:
(JSC::Identifier::impl):
(JSC::Identifier::Identifier):
(JSC::parseIndex):
(JSC::IdentifierRepHash::hash):
* runtime/IdentifierInlines.h:
(JSC::Identifier::fromUid):
* runtime/IntendedStructureChain.cpp:
(JSC::IntendedStructureChain::mayInterceptStoreTo):
* runtime/IntendedStructureChain.h:
* runtime/JSGlobalObject.cpp:
(JSC::JSGlobalObject::init):
* runtime/Lookup.h:
(JSC::HashTable::entry):
* runtime/MapData.h:
* runtime/ObjectConstructor.cpp:
(JSC::objectConstructorGetOwnPropertySymbols):
* runtime/PrivateName.h:
(JSC::PrivateName::PrivateName):
(JSC::PrivateName::uid):
* runtime/PropertyMapHashTable.h:
* runtime/PropertyName.h:
(JSC::PropertyName::PropertyName):
(JSC::PropertyName::uid):
(JSC::PropertyName::publicName):
(JSC::parseIndex):
* runtime/PropertyNameArray.h:
(JSC::PropertyNameArray::addKnownUnique):
(JSC::PropertyNameArray::add):
* runtime/Structure.cpp:
(JSC::StructureTransitionTable::contains):
(JSC::StructureTransitionTable::get):
(JSC::StructureTransitionTable::add):
(JSC::Structure::addPropertyTransitionToExistingStructureImpl):
(JSC::Structure::addPropertyTransitionToExistingStructureConcurrently):
(JSC::Structure::getConcurrently):
(JSC::Structure::add):
(JSC::Structure::remove):
(JSC::Structure::toStructureShape):
* runtime/Structure.h:
(JSC::PropertyMapEntry::PropertyMapEntry):
* runtime/StructureInlines.h:
(JSC::Structure::getConcurrently):
* runtime/StructureTransitionTable.h:
(JSC::StructureTransitionTable::Hash::hash):
* runtime/Symbol.cpp:
(JSC::Symbol::Symbol):
* runtime/Symbol.h:
* runtime/SymbolConstructor.cpp:
(JSC::symbolConstructorFor):
(JSC::symbolConstructorKeyFor):
* runtime/SymbolTable.cpp:
(JSC::SymbolTable::uniqueIDForVariable):
(JSC::SymbolTable::globalTypeSetForVariable):
* runtime/SymbolTable.h:
* runtime/TypeSet.cpp:
(JSC::StructureShape::addProperty):
(JSC::StructureShape::propertyHash):
* runtime/TypeSet.h:

Source/WebCore:

Use UniquedStringImpl, SymbolImpl and AtomicStringImpl.

* bindings/js/JSDOMWindowCustom.cpp:
(WebCore::JSDOMWindow::getOwnPropertySlotByIndex):
* bindings/js/SerializedScriptValue.cpp:
(WebCore::CloneSerializer::write):

Source/WTF:

he current AtomicStringImpl accidentally means the symbol OR atomic StringImpl.
t's not correct to its name and it's error prone.

In this patch, we'll introduce/changes classes into WTF.

1. UniquedStringImpl
It's derived class from StringImpl. And it represents symbol || atomic StringImpl.

2. SymbolImpl
It's derived class from UniquedStringImpl. Only symbol strings can become this.
It ensures the given StringImpl is symbol in compile time.

3. AtomicStringImpl
It's derived class from UniquedStringImpl. Only atomic (non-normal && non-symbol) strings can become this.
It ensures the given StringImpl is atomic in compile time.

And, in this time, I just accept UniqueStringImpl in AtomicString. As the result,
1. Now AtomicStringImpl issue is fixed. Its SymbolImpl is separated and UniquedStringImpl is introduced.
2. But AtomicString still have both symbol and atomic strings.
This should be solved in the separated patch.

* WTF.vcxproj/WTF.vcxproj:
* WTF.vcxproj/WTF.vcxproj.filters:
* WTF.xcodeproj/project.pbxproj:
* wtf/CMakeLists.txt:
* wtf/PrintStream.cpp:
* wtf/PrintStream.h:
(WTF::printInternal):
* wtf/text/AtomicString.h:
(WTF::AtomicString::AtomicString):
* wtf/text/AtomicStringImpl.h:
* wtf/text/StringImpl.cpp:
(WTF::StringImpl::~StringImpl):
(WTF::StringImpl::createSymbol):
(WTF::StringImpl::createSymbolEmpty):
* wtf/text/StringImpl.h:
* wtf/text/SymbolImpl.h: Copied from Source/JavaScriptCore/runtime/PrivateName.h.
* wtf/text/SymbolRegistry.cpp:
(WTF::SymbolRegistry::symbolForKey):
(WTF::SymbolRegistry::keyForSymbol):
(WTF::SymbolRegistry::remove):
* wtf/text/SymbolRegistry.h:
* wtf/text/UniquedStringImpl.h: Copied from Source/JavaScriptCore/runtime/PrivateName.h.

Tools:

Use UniquedStringImpl, SymbolImpl and AtomicStringImpl.

* TestWebKitAPI/Tests/WTF/StringImpl.cpp:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@184828 268f45cc-cd09-0410-ab3c-d52691b4dbfc