Add Example_Contravariance

Author: mackysoft

Assets/Example/Example_Contravariance.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Collections.Generic;
+using UnityEngine;
+
+public interface IActor { }
+public interface IStandardActor : IActor { }
+public interface INetworkActor : IActor { }
+public interface IAction<in T> where T : IActor { }
+
+public interface IActorAction : IAction<IActor> { }
+public interface IStandardActorAction : IAction<IStandardActor> { }
+public interface INetworkActorAction : IAction<INetworkActor> { }
+
+[Serializable]
+public sealed class NetworkActorAction : INetworkActorAction { }
+
+public class Example_Contravariance : MonoBehaviour
+{
+
+	[SerializeReference, SubclassSelector]
+	public List<IAction<INetworkActor>> actions = new List<IAction<INetworkActor>>();
+
+}