Source
void postMessage(Object message, [List<MessagePort> transfer]) {
if (transfer != null) {
_blink.BlinkMessagePort.instance.postMessage_Callback_2_(this, convertDartToNative_SerializedScriptValue(message), transfer);
return;
}
_blink.BlinkMessagePort.instance.postMessage_Callback_1_(this, convertDartToNative_SerializedScriptValue(message));
return;
}