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, vm.propertyNames->Set.string(), NameAdditionMode::WithoutStructureTransition);
putDirectWithoutTransition(vm, vm.propertyNames->prototype, setPrototype, PropertyAttribute::DontEnum | PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly);
putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(0), PropertyAttribute::DontEnum | PropertyAttribute::ReadOnly);
putDirectNonIndexAccessorWithoutTransition(vm, vm.propertyNames->speciesSymbol, speciesSymbol, PropertyAttribute::Accessor | PropertyAttribute::ReadOnly | PropertyAttribute::DontEnum);
}
static EncodedJSValue JSC_HOST_CALL callSet(JSGlobalObject*, CallFrame*);
static EncodedJSValue JSC_HOST_CALL constructSet(JSGlobalObject*, CallFrame*);
SetConstructor::SetConstructor(VM& vm, Structure* structure)
: Base(vm, structure, callSet, constructSet)
{
}
static EncodedJSValue JSC_HOST_CALL callSet(JSGlobalObject* globalObject, CallFrame*)
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
return JSValue::encode(throwConstructorCannotBeCalledAsFunctionTypeError(globalObject, scope, "Set"));
}
static EncodedJSValue JSC_HOST_CALL constructSet(JSGlobalObject* globalObject, CallFrame* callFrame)
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
Structure* setStructure = InternalFunction::createSubclassStructure(globalObject, callFrame->jsCallee(), callFrame->newTarget(), globalObject->setStructure());
RETURN_IF_EXCEPTION(scope, encodedJSValue());
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());
CallData adderFunctionCallData;
CallType adderFunctionCallType = getCallData(vm, adderFunction, adderFunctionCallData);
if (UNLIKELY(adderFunctionCallType == CallType::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, adderFunctionCallType, adderFunctionCallData, set, arguments);
});
return JSValue::encode(set);
}
EncodedJSValue JSC_HOST_CALL 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);
}
EncodedJSValue JSC_HOST_CALL 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());
}
EncodedJSValue JSC_HOST_CALL 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());
}
}