Qupid.AST.PropertyReference.GetReference C# (CSharp) Method

        public static PropertyReference GetReference(string col, string path, int line, int charPositionInLine)
        {
            var agg = col + "." + path;
            if (KnownReferences.ContainsKey(agg))
            {
                return KnownReferences[agg];
            }

            var propRef = new PropertyReference(col, path, line, charPositionInLine);
            KnownReferences.Add(agg, propRef);
            return propRef;
        }