private IEnumerator SignInAsync()

in Assets/Xbox Live/Scripts/SignInManager.cs [593:657]
59 lines of code
6 McCabe index (conditional complexity)

        private IEnumerator SignInAsync(int playerNumber, XboxLivePlayerInfo playerInfo)
        {
            SignInStatus signInStatus = SignInStatus.Success;

            TaskYieldInstruction<SignInResult> signInSilentlyTask = playerInfo.XboxLiveUser.SignInSilentlyAsync().AsCoroutine();
            yield return signInSilentlyTask;

            try
            {
                signInStatus = signInSilentlyTask.Result.Status;
            }
            catch (Exception ex)
            {
                ExceptionManager.Instance.ThrowException(
                           ExceptionSource.SignInManager,
                           ExceptionType.SignInSilentlyFailed,
                           ex);
            }

            if (signInStatus != SignInStatus.Success)
            {
                TaskYieldInstruction<SignInResult> signInTask = playerInfo.XboxLiveUser.SignInAsync().AsCoroutine();
                yield return signInTask;

                try
                {
                    signInStatus = signInTask.Result.Status;
                }
                catch (Exception ex)
                {
                    ExceptionManager.Instance.ThrowException(
                           ExceptionSource.SignInManager,
                           ExceptionType.SignInFailed,
                           ex);
                }
            }

            try
            {
                // Throw any exceptions if needed.
                if (signInStatus == SignInStatus.Success)
                {
                    CurrentNumberOfPlayers++;
                    XboxLive.Instance.StatsManager.AddLocalUser(playerInfo.XboxLiveUser);
                    XboxLive.Instance.SocialManager.AddLocalUser(playerInfo.XboxLiveUser, SocialManagerExtraDetailLevel.PreferredColorLevel);
                    this.NotifyAllCallbacks(playerNumber, playerInfo.XboxLiveUser, XboxLiveAuthStatus.Succeeded, null, true);
                }
                else
                {
                    this.CurrentPlayers[playerNumber].XboxLiveUser = null;
                    this.CurrentPlayers[playerNumber].XboxLiveContext = null;
#if ENABLE_WINMD_SUPPORT
                    this.CurrentPlayers[playerNumber].WindowsUser = null;
#endif
                    NotifyAllCallbacks(playerNumber, null, XboxLiveAuthStatus.Failed, "Sign In Failed: Player " + playerNumber + " failed. Sign In Status: " + signInStatus);
                }
            }
            catch (Exception ex)
            {
                ExceptionManager.Instance.ThrowException(
                           ExceptionSource.SignInManager,
                           ExceptionType.SignInFailed,
                           ex);
            }
        }