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, PropertyAttribute::DontEnum | PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly);
putDirectWithoutTransition(vm, vm.propertyNames->length, jsNumber(0), PropertyAttribute::DontEnum | PropertyAttribute::ReadOnly);
putDirectNonIndexAccessor(vm, vm.propertyNames->speciesSymbol, speciesSymbol, PropertyAttribute::Accessor | PropertyAttribute::ReadOnly | PropertyAttribute::DontEnum);
}
static EncodedJSValue JSC_HOST_CALL callSet(ExecState*);
static EncodedJSValue JSC_HOST_CALL constructSet(ExecState*);
SetConstructor::SetConstructor(VM& vm, Structure* structure)
: Base(vm, structure, callSet, constructSet)
{
}
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()) {
scope.release();
return JSValue::encode(JSSet::create(exec, vm, setStructure));
}
if (isJSSet(iterable)) {
JSSet* iterableSet = jsCast<JSSet*>(iterable);
if (iterableSet->canCloneFastAndNonObservable(setStructure)) {
scope.release();
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);
ASSERT(!arguments.hasOverflowed());
call(exec, adderFunction, adderFunctionCallType, adderFunctionCallData, set, arguments);
});
return JSValue::encode(set);
}
EncodedJSValue JSC_HOST_CALL setPrivateFuncSetBucketHead(ExecState* exec)
{
ASSERT(isJSSet(exec->argument(0)));
JSSet* set = jsCast<JSSet*>(exec->uncheckedArgument(0));
auto* head = set->head();
ASSERT(head);
return JSValue::encode(head);
}
EncodedJSValue JSC_HOST_CALL setPrivateFuncSetBucketNext(ExecState* exec)
{
ASSERT(jsDynamicCast<JSSet::BucketType*>(exec->vm(), exec->argument(0)));
auto* bucket = jsCast<JSSet::BucketType*>(exec->uncheckedArgument(0));
ASSERT(bucket);
bucket = bucket->next();
while (bucket) {
if (!bucket->deleted())
return JSValue::encode(bucket);
bucket = bucket->next();
}
return JSValue::encode(exec->vm().sentinelSetBucket.get());
}
EncodedJSValue JSC_HOST_CALL setPrivateFuncSetBucketKey(ExecState* exec)
{
ASSERT(jsDynamicCast<JSSet::BucketType*>(exec->vm(), exec->argument(0)));
auto* bucket = jsCast<JSSet::BucketType*>(exec->uncheckedArgument(0));
ASSERT(bucket);
return JSValue::encode(bucket->key());
}
}