SetConstructor.cpp [plain text]
#include "config.h"
#include "SetConstructor.h"
#include "IteratorOperations.h"
#include "JSCInlines.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, 0, vm.propertyNames->Set.string(), PropertyAdditionMode::WithoutStructureTransition);
putDirectWithoutTransition(vm, vm.propertyNames->prototype, setPrototype, PropertyAttribute::DontEnum | PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly);
putDirectNonIndexAccessorWithoutTransition(vm, vm.propertyNames->speciesSymbol, speciesSymbol, PropertyAttribute::Accessor | PropertyAttribute::ReadOnly | PropertyAttribute::DontEnum);
}
static JSC_DECLARE_HOST_FUNCTION(callSet);
static JSC_DECLARE_HOST_FUNCTION(constructSet);
SetConstructor::SetConstructor(VM& vm, Structure* structure)
: Base(vm, structure, callSet, constructSet)
{
}
JSC_DEFINE_HOST_FUNCTION(callSet, (JSGlobalObject* globalObject, CallFrame*))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
return JSValue::encode(throwConstructorCannotBeCalledAsFunctionTypeError(globalObject, scope, "Set"));
}
JSC_DEFINE_HOST_FUNCTION(constructSet, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
JSObject* newTarget = asObject(callFrame->newTarget());
Structure* setStructure = newTarget == callFrame->jsCallee()
? globalObject->setStructure()
: InternalFunction::createSubclassStructure(globalObject, newTarget, getFunctionRealm(vm, newTarget)->setStructure());
RETURN_IF_EXCEPTION(scope, { });
JSValue iterable = callFrame->argument(0);
if (iterable.isUndefinedOrNull())
RELEASE_AND_RETURN(scope, JSValue::encode(JSSet::create(globalObject, vm, setStructure)));
if (auto* iterableSet = jsDynamicCast<JSSet*>(vm, iterable)) {
if (iterableSet->canCloneFastAndNonObservable(setStructure))
RELEASE_AND_RETURN(scope, JSValue::encode(iterableSet->clone(globalObject, vm, setStructure)));
}
JSSet* set = JSSet::create(globalObject, vm, setStructure);
RETURN_IF_EXCEPTION(scope, encodedJSValue());
JSValue adderFunction = set->JSObject::get(globalObject, vm.propertyNames->add);
RETURN_IF_EXCEPTION(scope, encodedJSValue());
auto adderFunctionCallData = getCallData(vm, adderFunction);
if (UNLIKELY(adderFunctionCallData.type == CallData::Type::None))
return JSValue::encode(throwTypeError(globalObject, scope));
scope.release();
forEachInIterable(globalObject, iterable, [&](VM&, JSGlobalObject* globalObject, JSValue nextValue) {
MarkedArgumentBuffer arguments;
arguments.append(nextValue);
ASSERT(!arguments.hasOverflowed());
call(globalObject, adderFunction, adderFunctionCallData, set, arguments);
});
return JSValue::encode(set);
}
JSC_DEFINE_HOST_FUNCTION(setPrivateFuncSetBucketHead, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
ASSERT_UNUSED(globalObject, jsDynamicCast<JSSet*>(globalObject->vm(), callFrame->argument(0)));
JSSet* set = jsCast<JSSet*>(callFrame->uncheckedArgument(0));
auto* head = set->head();
ASSERT(head);
return JSValue::encode(head);
}
JSC_DEFINE_HOST_FUNCTION(setPrivateFuncSetBucketNext, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
ASSERT(jsDynamicCast<JSSet::BucketType*>(globalObject->vm(), callFrame->argument(0)));
auto* bucket = jsCast<JSSet::BucketType*>(callFrame->uncheckedArgument(0));
ASSERT(bucket);
bucket = bucket->next();
while (bucket) {
if (!bucket->deleted())
return JSValue::encode(bucket);
bucket = bucket->next();
}
return JSValue::encode(globalObject->vm().sentinelSetBucket());
}
JSC_DEFINE_HOST_FUNCTION(setPrivateFuncSetBucketKey, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
ASSERT_UNUSED(globalObject, jsDynamicCast<JSSet::BucketType*>(globalObject->vm(), callFrame->argument(0)));
auto* bucket = jsCast<JSSet::BucketType*>(callFrame->uncheckedArgument(0));
ASSERT(bucket);
return JSValue::encode(bucket->key());
}
}