Pytocs.TypeInference.AnalyzerImpl.GetCachedModule C# (CSharp) Method

        ModuleType GetCachedModule(string file)
        {
            DataType t = ModuleTable.lookupType(GetModuleQname(file));
            if (t == null)
            {
                return null;
            }
            else if (t is UnionType)
            {
                foreach (DataType tt in ((UnionType) t).types)
                {
                    if (tt is ModuleType)
                    {
                        return (ModuleType) tt;
                    }
                }
                return null;
            }
            else if (t is ModuleType)
            {
                return (ModuleType) t;
            }
            else
            {
                return null;
            }
        }