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/*
* Copyright (C) 2012 Apple Inc. All rights reserved.
* Copyright (C) 2015 Yusuke Suzuki <utatane.tea@gmail.com>.
*
* 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. AND ITS CONTRIBUTORS ``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 ITS 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 "SymbolConstructor.h"
#include "Error.h"
#include "JSCInlines.h"
#include "JSGlobalObject.h"
#include "Symbol.h"
#include "SymbolPrototype.h"
#include <wtf/text/SymbolRegistry.h>
namespace JSC {
static EncodedJSValue JSC_HOST_CALL symbolConstructorFor(ExecState*);
static EncodedJSValue JSC_HOST_CALL symbolConstructorKeyFor(ExecState*);
}
#include "SymbolConstructor.lut.h"
namespace JSC {
STATIC_ASSERT_IS_TRIVIALLY_DESTRUCTIBLE(SymbolConstructor);
const ClassInfo SymbolConstructor::s_info = { "Function", &Base::s_info, &symbolConstructorTable, CREATE_METHOD_TABLE(SymbolConstructor) };
/* Source for SymbolConstructor.lut.h
@begin symbolConstructorTable
for symbolConstructorFor DontEnum|Function 1
keyFor symbolConstructorKeyFor DontEnum|Function 1
@end
*/
SymbolConstructor::SymbolConstructor(VM& vm, Structure* structure)
: InternalFunction(vm, structure)
{
}
#define INITIALIZE_WELL_KNOWN_SYMBOLS(name) \
putDirectWithoutTransition(vm, Identifier::fromString(&vm, #name), Symbol::create(vm, static_cast<SymbolImpl&>(*vm.propertyNames->name##Symbol.impl())), DontEnum | DontDelete | ReadOnly);
void SymbolConstructor::finishCreation(VM& vm, SymbolPrototype* prototype)
{
Base::finishCreation(vm, prototype->classInfo()->className);
putDirectWithoutTransition(vm, vm.propertyNames->prototype, prototype, DontEnum | DontDelete | ReadOnly);
putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(0), DontDelete | ReadOnly | DontEnum);
JSC_COMMON_PRIVATE_IDENTIFIERS_EACH_WELL_KNOWN_SYMBOL(INITIALIZE_WELL_KNOWN_SYMBOLS)
}
bool SymbolConstructor::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot &slot)
{
return getStaticFunctionSlot<Base>(exec, symbolConstructorTable, jsCast<SymbolConstructor*>(object), propertyName, slot);
}
// ------------------------------ Functions ---------------------------
static EncodedJSValue JSC_HOST_CALL callSymbol(ExecState* exec)
{
JSValue description = exec->argument(0);
if (description.isUndefined())
return JSValue::encode(Symbol::create(exec->vm()));
return JSValue::encode(Symbol::create(exec, description.toString(exec)));
}
ConstructType SymbolConstructor::getConstructData(JSCell*, ConstructData&)
{
return ConstructTypeNone;
}
CallType SymbolConstructor::getCallData(JSCell*, CallData& callData)
{
callData.native.function = callSymbol;
return CallTypeHost;
}
EncodedJSValue JSC_HOST_CALL symbolConstructorFor(ExecState* exec)
{
JSString* stringKey = exec->argument(0).toString(exec);
if (exec->hadException())
return JSValue::encode(jsUndefined());
String string = stringKey->value(exec);
if (exec->hadException())
return JSValue::encode(jsUndefined());
return JSValue::encode(Symbol::create(exec->vm(), exec->vm().symbolRegistry().symbolForKey(string)));
}
EncodedJSValue JSC_HOST_CALL symbolConstructorKeyFor(ExecState* exec)
{
JSValue symbolValue = exec->argument(0);
if (!symbolValue.isSymbol())
return JSValue::encode(throwTypeError(exec));
SymbolImpl* uid = asSymbol(symbolValue)->privateName().uid();
if (!uid->symbolRegistry())
return JSValue::encode(jsUndefined());
ASSERT(uid->symbolRegistry() == &exec->vm().symbolRegistry());
return JSValue::encode(jsString(exec, exec->vm().symbolRegistry().keyForSymbol(*uid)));
}
} // namespace JSC
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