[pigeon] Support pass int64 from Swift to Dart #122160
Description
According to https://github.com/flutter/packages/blob/4aa259aa4f21e2cf510e5fc7755fbd26175807f2/packages/pigeon/lib/swift_generator.dart#L711, Users don't seem to be able to pass int64 without converting to another type like int32 or double.
Example dart code:
import 'package:pigeon/pigeon.dart';
@FlutterApi()
abstract class Callback {
void onEvent(int timestampNs);
}generates following swift code:
/// Generated class from Pigeon that represents Flutter messages that can be called from Swift.
class Callback {
private let binaryMessenger: FlutterBinaryMessenger
init(binaryMessenger: FlutterBinaryMessenger){
self.binaryMessenger = binaryMessenger
}
func onEvent(timestampNs timestampNsArg: Int32, completion: @escaping () -> Void) {
let channel = FlutterBasicMessageChannel(name: "dev.flutter.pigeon.Callback.onEvent", binaryMessenger: binaryMessenger)
channel.sendMessage([timestampNsArg] as [Any?]) { _ in
completion()
}
}
}It would be nice to be able to pass int64 from Swift to Dart using pigeon.