SetConstructor.cpp [plain text]
#include "config.h"
#include "SetConstructor.h"
#include "Error.h"
#include "GetterSetter.h"
#include "IteratorOperations.h"
#include "JSCInlines.h"
#include "JSGlobalObject.h"
#include "JSObjectInlines.h"
#include "JSSet.h"
#include "SetPrototype.h"
namespace JSC {
const ClassInfo SetConstructor::s_info = { "Function", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(SetConstructor) };
void SetConstructor::finishCreation(VM& vm, SetPrototype* setPrototype, GetterSetter* speciesSymbol)
{
Base::finishCreation(vm, setPrototype->classInfo(vm)->className);
putDirectWithoutTransition(vm, vm.propertyNames->prototype, setPrototype, DontEnum | DontDelete | ReadOnly);
putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(0), DontEnum | ReadOnly);
putDirectNonIndexAccessor(vm, vm.propertyNames->speciesSymbol, speciesSymbol, Accessor | ReadOnly | DontEnum);
}
static EncodedJSValue JSC_HOST_CALL callSet(ExecState* exec)
{
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
return JSValue::encode(throwConstructorCannotBeCalledAsFunctionTypeError(exec, scope, "Set"));
}
static EncodedJSValue JSC_HOST_CALL constructSet(ExecState* exec)
{
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
JSGlobalObject* globalObject = asInternalFunction(exec->jsCallee())->globalObject();
Structure* setStructure = InternalFunction::createSubclassStructure(exec, exec->newTarget(), globalObject->setStructure());
RETURN_IF_EXCEPTION(scope, encodedJSValue());
JSValue iterable = exec->argument(0);
if (iterable.isUndefinedOrNull())
return JSValue::encode(JSSet::create(exec, vm, setStructure));
if (isJSSet(iterable)) {
JSSet* iterableSet = jsCast<JSSet*>(iterable);
if (iterableSet->canCloneFastAndNonObservable(setStructure))
return JSValue::encode(iterableSet->clone(exec, vm, setStructure));
}
JSSet* set = JSSet::create(exec, vm, setStructure);
RETURN_IF_EXCEPTION(scope, encodedJSValue());
JSValue adderFunction = set->JSObject::get(exec, vm.propertyNames->add);
RETURN_IF_EXCEPTION(scope, encodedJSValue());
CallData adderFunctionCallData;
CallType adderFunctionCallType = getCallData(adderFunction, adderFunctionCallData);
if (UNLIKELY(adderFunctionCallType == CallType::None))
return JSValue::encode(throwTypeError(exec, scope));
scope.release();
forEachInIterable(exec, iterable, [&](VM&, ExecState* exec, JSValue nextValue) {
MarkedArgumentBuffer arguments;
arguments.append(nextValue);
call(exec, adderFunction, adderFunctionCallType, adderFunctionCallData, set, arguments);
});
return JSValue::encode(set);
}
ConstructType SetConstructor::getConstructData(JSCell*, ConstructData& constructData)
{
constructData.native.function = constructSet;
return ConstructType::Host;
}
CallType SetConstructor::getCallData(JSCell*, CallData& callData)
{
callData.native.function = callSet;
return CallType::Host;
}
}