WeakObjectRefConstructor.cpp [plain text]
#include "config.h"
#include "WeakObjectRefConstructor.h"
#include "JSCInlines.h"
#include "JSWeakObjectRef.h"
#include "WeakObjectRefPrototype.h"
namespace JSC {
const ClassInfo WeakObjectRefConstructor::s_info = { "Function", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(WeakObjectRefConstructor) };
void WeakObjectRefConstructor::finishCreation(VM& vm, WeakObjectRefPrototype* prototype)
{
Base::finishCreation(vm, 1, "WeakRef"_s, PropertyAdditionMode::WithoutStructureTransition);
putDirectWithoutTransition(vm, vm.propertyNames->prototype, prototype, PropertyAttribute::DontEnum | PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly);
}
static JSC_DECLARE_HOST_FUNCTION(callWeakRef);
static JSC_DECLARE_HOST_FUNCTION(constructWeakRef);
WeakObjectRefConstructor::WeakObjectRefConstructor(VM& vm, Structure* structure)
: Base(vm, structure, callWeakRef, constructWeakRef)
{
}
JSC_DEFINE_HOST_FUNCTION(callWeakRef, (JSGlobalObject* globalObject, CallFrame*))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
return JSValue::encode(throwConstructorCannotBeCalledAsFunctionTypeError(globalObject, scope, "WeakRef"));
}
JSC_DEFINE_HOST_FUNCTION(constructWeakRef, (JSGlobalObject* globalObject, CallFrame* callFrame))
{
VM& vm = globalObject->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
if (!callFrame->argument(0).isObject())
return throwVMTypeError(globalObject, scope, "First argument to WeakRef should be an object"_s);
JSObject* newTarget = asObject(callFrame->newTarget());
Structure* weakObjectRefStructure = newTarget == callFrame->jsCallee()
? globalObject->weakObjectRefStructure()
: InternalFunction::createSubclassStructure(globalObject, newTarget, getFunctionRealm(vm, newTarget)->weakObjectRefStructure());
RETURN_IF_EXCEPTION(scope, { });
RELEASE_AND_RETURN(scope, JSValue::encode(JSWeakObjectRef::create(vm, weakObjectRefStructure, callFrame->uncheckedArgument(0).getObject())));
}
}