private void ParseClass(ClassDeclarationSyntax cls, NamespaceDeclarationSyntax ns, List <ClassStructure> parsedClasses)
        {
            var parsedClass = new ClassStructure(cls, ns, _fileStructure.References, _fileStructure.Usings, _fileStructure.Filename, _fileStructure.Path);

            parsedClass.ParseClass();
            lock (_lock)
                parsedClasses.Add(parsedClass);
        }