getIsolateID method Null safety

String? getIsolateID (
  1. Isolate isolate
)

Returns a String token representing the ID of isolate.

Returns null if the running Dart environment does not support the service protocol.

Implementation

static String? getIsolateID(Isolate isolate) {
  // TODO: When NNBD is complete, delete the following line.
  ArgumentError.checkNotNull(isolate, 'isolate');
  return _getIsolateIDFromSendPort(isolate.controlPort);
}