removing useless C++ classes

Juliet/include/Core/Common/NonCopyable.h

@@ -1,14 +0,0 @@
-#pragma once
-
-namespace Juliet
-{
-    class NonCopyable
-    {
-      public:
-        NonCopyable()          = default;
-        virtual ~NonCopyable() = default;
-
-        NonCopyable(const NonCopyable&)                  = delete;
-        const NonCopyable& operator=(const NonCopyable&) = delete;
-    };
-} // namespace Juliet

Juliet/include/Core/Common/NonMovable.h

@@ -1,14 +0,0 @@
-#pragma once
-
-namespace Juliet
-{
-    class NonMovable
-    {
-      public:
-        NonMovable()          = default;
-        virtual ~NonMovable() = default;
-
-        NonMovable(const NonMovable&&)                  = delete;
-        const NonMovable& operator=(const NonMovable&&) = delete;
-    };
-} // namespace Juliet

Juliet/include/Core/Common/Singleton.h

@@ -1,79 +0,0 @@
-#pragma once
-
-#include <Core/Common/NonCopyable.h>
-#include <Core/Common/NonMovable.h>
-#include <Core/Common/NonNullPtr.h>
-
-namespace Juliet
-{
-    // Two usages : Inherit from Singleton or use the static methods to register to it when you want.
-    // 1)
-    // class IThing {};
-    // class Thing : public Singleton::AutoRegister<IThing> {};
-    template <typename Type>
-    class Singleton final : public NonMovable, public NonCopyable
-    {
-      public:
-        static void  Register(NonNullPtr<Type> type);
-        static void  Unregister(NonNullPtr<Type> type);
-        static Type* Get();
-
-        class AutoRegister : public Type
-        {
-          public:
-            AutoRegister();
-            virtual ~AutoRegister();
-        };
-
-      private:
-        static Type* sInstance;
-        static bool  sIsRegistered;
-    };
-
-    template <typename Type>
-    bool Singleton<Type>::sIsRegistered = false;
-
-    template <typename Type>
-    Type* Singleton<Type>::sInstance = nullptr;
-
-    template <typename Type>
-    void Singleton<Type>::Register(NonNullPtr<Type> type)
-    {
-        Assert(!Get() && "Singleton is already registered. Make sure to only register it once");
-        sInstance     = type.Get();
-        sIsRegistered = true;
-    }
-
-    template <typename Type>
-    void Singleton<Type>::Unregister(NonNullPtr<Type> type)
-    {
-        Assert(sIsRegistered && "Trying to unregister a singleton that is not registered");
-        Assert(sInstance == type &&
-               "Trying to unregister an instance that is different from the one currently registered");
-
-        sInstance     = nullptr;
-        sIsRegistered = false;
-    }
-
-    template <typename Type>
-    Type* Singleton<Type>::Get()
-    {
-        if (sIsRegistered)
-        {
-            return sInstance;
-        }
-        return nullptr;
-    }
-
-    template <typename Type>
-    Singleton<Type>::AutoRegister::AutoRegister()
-    {
-        Singleton<Type>::Register(this);
-    }
-
-    template <typename Type>
-    Singleton<Type>::AutoRegister::~AutoRegister()
-    {
-        Singleton<Type>::Unregister(this);
-    }
-} // namespace Juliet

Juliet/include/Core/Networking/Socket.h

@@ -1,14 +1,13 @@
 #pragma once
 
-#include <Core/Common/NonCopyable.h>
 #include <Core/Networking/SocketHandle.h>
 
 namespace Juliet
 {
-    class Socket : NonCopyable
+    class Socket
     {
       public:
-        ~Socket() override;
+        virtual ~Socket();
 
         Socket(Socket&& other) noexcept;
         Socket& operator=(Socket&& socket) noexcept;