Syntax sugar for Func/Delegate/Type

[HaoK]

Syntax sugar would be specifically to have a value-type that can be used as options.Notification to hold the delegate, and also to hold onto the delegate.

[HaoK]

struct Thing<T>
{
    void Set(T instance);
    void Set(Type t);
    void Set(Func<IServiceProvider, T>);

    Func<IServiceProvider, T> Factory;

}

[lodejard]

plus as a value type it would be nice to have it be implicitly assignable as any of those three.

[lodejard]

class SomeOptions
{
   Thing<ISomeNotifications> Notifications;
}
// later...
options.Notifications = typeof(MyNotifications);
or
options.Notifications = new MyNotifications();

need to experiment to see if that works out nicely for intellisense and whatnot

[kevinchalet]

Oh yeah, we really need this little gem to make DI and lifetime management easier! 👍

https://github.com/AspNet-OpenIdConnect-Server/Owin.Security.OpenIdConnect.Server/blob/vNext/samples/Mvc/Mvc.Server/Startup.cs#L113
https://github.com/AspNet-OpenIdConnect-Server/Owin.Security.OpenIdConnect.Server/blob/vNext/samples/Mvc/Mvc.Server/Startup.cs#L121