factory constructor ZoneSpecification.from

Source

factory ZoneSpecification.from(ZoneSpecification other, {
  dynamic handleUncaughtError(Zone self, ZoneDelegate parent, Zone zone,
                              error, StackTrace stackTrace): null,
  dynamic run(Zone self, ZoneDelegate parent, Zone zone, f()): null,
  dynamic runUnary(
      Zone self, ZoneDelegate parent, Zone zone, f(arg), arg): null,
  dynamic runBinary(Zone self, ZoneDelegate parent, Zone zone,
                    f(arg1, arg2), arg1, arg2): null,
  ZoneCallback registerCallback(
      Zone self, ZoneDelegate parent, Zone zone, f()): null,
  ZoneUnaryCallback registerUnaryCallback(
      Zone self, ZoneDelegate parent, Zone zone, f(arg)): null,
  ZoneBinaryCallback registerBinaryCallback(
      Zone self, ZoneDelegate parent, Zone zone, f(arg1, arg2)): null,
  AsyncError errorCallback(Zone self, ZoneDelegate parent, Zone zone,
                           Object error, StackTrace stackTrace),
  void scheduleMicrotask(
      Zone self, ZoneDelegate parent, Zone zone, f()): null,
  Timer createTimer(Zone self, ZoneDelegate parent, Zone zone,
                    Duration duration, void f()): null,
  Timer createPeriodicTimer(Zone self, ZoneDelegate parent, Zone zone,
                            Duration period, void f(Timer timer)): null,
  void print(Zone self, ZoneDelegate parent, Zone zone, String line): null,
  Zone fork(Zone self, ZoneDelegate parent, Zone zone,
            ZoneSpecification specification,
            Map zoneValues): null
}) {
  return new ZoneSpecification(
    handleUncaughtError: handleUncaughtError ?? other.handleUncaughtError,
    run: run ?? other.run,
    runUnary: runUnary ?? other.runUnary,
    runBinary: runBinary ?? other.runBinary,
    registerCallback: registerCallback ?? other.registerCallback,
    registerUnaryCallback: registerUnaryCallback ??
                           other.registerUnaryCallback,
    registerBinaryCallback: registerBinaryCallback ??
                            other.registerBinaryCallback,
    errorCallback: errorCallback ?? other.errorCallback,
    scheduleMicrotask: scheduleMicrotask ?? other.scheduleMicrotask,
    createTimer : createTimer ?? other.createTimer,
    createPeriodicTimer: createPeriodicTimer ?? other.createPeriodicTimer,
    print : print ?? other.print,
    fork: fork ?? other.fork);
}