1 files changed, 151 insertions, 0 deletions
diff --git a/Runtime/Scripting/ReadOnlyScriptingObjectOfType.h b/Runtime/Scripting/ReadOnlyScriptingObjectOfType.h
new file mode 100644
index 0000000..2a837e6
--- /dev/null
+++ b/Runtime/Scripting/ReadOnlyScriptingObjectOfType.h
@@ -0,0 +1,151 @@
+#pragma once
+
+#include "Runtime/Scripting/Backend/ScriptingTypes.h"
+#include "Scripting.h"
+
+#define SUPPORT_DIRECT_CACHEDPTR_PASSING_FOR_READONLY_OBJECTS UNITY_WINRT
+
+#if !SUPPORT_DIRECT_CACHEDPTR_PASSING_FOR_READONLY_OBJECTS
+template<class T>
+struct ReadOnlyScriptingObjectOfType
+{	
+private:
+	ScriptingObjectPtr object;
+public:
+	ReadOnlyScriptingObjectOfType(ScriptingObjectPtr object)
+	{
+		this->object = object;
+	}
+	
+	T& GetReference () const
+	{
+		T* ptr = GetPtr();
+		
+		if (ptr != NULL)
+			return *ptr;
+		
+		Scripting::RaiseNullExceptionObject (object);
+		return *(T*)NULL;
+	}
+
+	T& operator * () const
+	{
+		return GetReference ();
+	}
+		
+	operator T* () const
+	{
+		return GetPtr ();
+	}
+		
+	T* operator -> () const
+	{
+		return &GetReference ();
+	}
+	
+	bool IsNull() const
+	{
+		return object == SCRIPTING_NULL;
+	}
+
+	operator PPtr<T> () const
+	{
+		if (IsNull())
+			return PPtr<T> ();
+		
+		return PPtr<T> (GetInstanceID());
+	}
+
+private:
+#if UNITY_EDITOR
+public:
+	// ToDo: Fix this later, ask TomasD or Lucas
+	inline ScriptingObjectPtr GetScriptingObject() const
+	{
+		return object;
+	}
+#endif
+
+	inline int GetInstanceID() const
+	{
+		return Scripting::GetInstanceIDFromScriptingWrapper(object);
+	}
+	T* GetPtr () const
+	{
+		if (IsNull())
+			return NULL;
+		
+		void* cachedPtr = GetCachedPtr();
+		if (cachedPtr != NULL)
+		{
+			AssertIf(reinterpret_cast<Object*> (cachedPtr)->GetInstanceID() != GetInstanceID());
+			return (T*)cachedPtr;
+		}
+
+		T* temp = dynamic_instanceID_cast<T*> (GetInstanceID());
+		return temp;
+	}
+
+	inline void* GetCachedPtr() const
+	{
+		return Scripting::GetCachedPtrFromScriptingWrapper(object);
+	}
+};
+
+#else
+
+template<class T>
+struct ReadOnlyScriptingObjectOfType
+{
+private:
+	T* cachedPtr;
+public:
+	ReadOnlyScriptingObjectOfType(void* p)
+	{
+		this->cachedPtr = (T*)p;
+	}
+
+	T& GetReference () const
+	{
+		if (cachedPtr != NULL)
+			return *(T*)cachedPtr;
+		
+		Scripting::RaiseNullExceptionObject (SCRIPTING_NULL);
+		return *(T*)NULL;
+	}
+
+	T& operator * () const
+	{
+		return GetReference ();
+	}
+
+	operator T* () const
+	{
+		return cachedPtr;
+	}
+
+	T* operator -> () const
+	{
+		return &GetReference ();
+	}
+
+	bool IsNull() const
+	{
+		return cachedPtr == NULL;
+	}
+
+	operator PPtr<T> () const
+	{
+		if (IsNull())
+			return PPtr<T> ();
+		
+		return PPtr<T> (cachedPtr->GetInstanceID());
+	}
+
+};
+
+#endif
+
+
+
+