: std::exception(), exception_() {

JSValueRef jscException = nullptr;

auto context = jsc_backend::currentEngineContextChecked();

auto msg = jsc_backend::JscEngine::toJsc(context, message);

exception_.exception_ = jsc_backend::JscEngine::make<Local<Object>>(

JSObjectMakeError(context, 1, &msg, &jscException));

jsc_backend::JscEngine::checkException(jscException);

if (exception_.exception_.isEmpty()) {

JSValueRef jscException = nullptr;

auto context = jsc_backend::currentEngineContextChecked();

auto msg = String::newString(exception_.message_);

auto msgRef = jsc_backend::JscEngine::toJsc(context, msg);

exception_.exception_ = jsc_backend::JscEngine::make<Local<Object>>(

JSObjectMakeError(context, 1, &msgRef, &jscException));

jsc_backend::JscEngine::checkException(jscException);

}

return exception_.exception_.getValue();

try {

return exception().asObject().get("stack").asString().toString();

} catch (Exception&) {

return "[failed to obtain stacktrace]";

}

if (exception) {

throw Exception(Local<Value>(exception));

}