feat: Added NoNut core

src/NoNut/core/Class.cpp

@@ -0,0 +1,63 @@
+#include "CommonHeader.h"
+#include "Class.h"
+
+namespace nonut
+{
+	Class::Class(const String& className, const SQObject classObjectInstance)
+	{
+		HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+		if (classObjectInstance._type == OT_NULL)
+		{
+			const auto top = sq_gettop(vm);
+
+			sq_pushroottable(vm); //push root table
+			sq_pushstring(vm, className.c_str(), className.length()); //push class name
+
+			if (sq_get(vm, -2) == SQ_OK) //retrieve class
+			{
+				sq_getstackobj(vm, -1, &classObject);
+				sq_addref(vm, &classObject);
+				if (sq_createinstance(vm, -1) == SQ_OK) //create class instance
+				{
+					//1. Get object ptr
+					sq_getstackobj(vm, -1, &this->classObjectInstance); //retrieve object
+					sq_addref(vm, &this->classObjectInstance);
+					//Add ref thanks to which object will not be immediately deleted
+					sq_pop(vm, 1); // pop class instance
+				}
+			}
+			sq_settop(vm, top); // TODO: FIX LEAK PROPERLY
+		}
+		else
+		{
+			this->classObjectInstance = classObjectInstance;
+			const auto top = sq_gettop(vm);
+			sq_addref(vm, &this->classObjectInstance);
+
+			sq_pushroottable(vm); //push root table
+			sq_pushstring(vm, className.c_str(), className.length()); //push class name
+
+			if (sq_get(vm, -2) == SQ_OK) //retrieve class
+			{
+				sq_getstackobj(vm, -1, &classObject);
+				sq_addref(vm, &classObject);
+			}
+
+			sq_settop(vm, top);
+		}
+	}
+
+	Class::~Class()
+	{
+		HSQUIRRELVM vm = Sqrat::DefaultVM::Get();
+		sq_release(vm, &classObject);
+		sq_release(vm, &classObjectInstance);
+		sq_resetobject(&classObject);
+		sq_resetobject(&classObjectInstance);
+	}
+
+	SQObject Class::getInstance() const
+	{
+		return classObjectInstance;
+	}
+}