Rhino.ImporterTopLevel.RealThis C# (CSharp) Method

		private Rhino.ImporterTopLevel RealThis(Scriptable thisObj, IdFunctionObject f)
		{
			if (topScopeFlag)
			{
				// when used as top scope importPackage and importClass are global
				// function that ignore thisObj
				return this;
			}
			if (!(thisObj is Rhino.ImporterTopLevel))
			{
				throw IncompatibleCallError(f);
			}
			return (Rhino.ImporterTopLevel)thisObj;
		}