pub trait MessagePortMethods<D: DomTypes> {
// Required methods
fn PostMessage(
&self,
cx: SafeJSContext,
message: HandleValue<'_>,
transfer: CustomAutoRooterGuard<'_, Vec<*mut JSObject>>,
) -> Result<(), Error>;
fn PostMessage_(
&self,
cx: SafeJSContext,
message: HandleValue<'_>,
options: RootedTraceableBox<StructuredSerializeOptions>,
) -> Result<(), Error>;
fn Start(&self);
fn Close(&self);
fn GetOnmessage(&self, _can_gc: CanGc) -> Option<Rc<EventHandlerNonNull>>;
fn SetOnmessage(&self, value: Option<Rc<EventHandlerNonNull>>);
fn GetOnmessageerror(&self) -> Option<Rc<EventHandlerNonNull>>;
fn SetOnmessageerror(&self, value: Option<Rc<EventHandlerNonNull>>);
}