Exemplo n.º 1
0
            public _FileIO(CodeContext/*!*/ context, int fd, [DefaultParameterValue("r")]string mode, [DefaultParameterValue(true)]bool closefd) {
                if (fd < 0) {
                    throw PythonOps.ValueError("fd must be >= 0");
                }

                PythonContext pc = PythonContext.GetContext(context);
                _FileIO file = (_FileIO)pc.FileManager.GetObjectFromId(pc, fd);
                Console.WriteLine(file);

                _context = pc;
                switch (mode) {
                    case "r": _mode = "rb"; break;
                    case "w": _mode = "wb"; break;
                    case "a": _mode = "w"; break;
                    case "r+":
                    case "+r": _mode = "rb+"; break;
                    case "w+":
                    case "+w": _mode = "rb+"; break;
                    case "a+":
                    case "+a": _mode = "r+"; break;
                    default:
                        BadMode(mode);
                        break;
                }
                _readStream = file._readStream;
                _writeStream = file._writeStream;
                _closefd = closefd;
            }
Exemplo n.º 2
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 public static void PerformModuleReload(PythonContext/*!*/ context, IDictionary/*!*/ dict) {
     if (ucd_5_2_0 == null) {
         // This is a lie. The version of Unicode depends on the .NET version as well as the OS. The
         // version of the database stored internally is 5.2, so just say that.
         Interlocked.CompareExchange(ref ucd_5_2_0, new UCD("5.2.0"), null);
     }
 }
Exemplo n.º 3
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        public CodeContext(Scope scope, PythonContext languageContext, CodeContext parent) {
            Assert.NotNull(languageContext);

            _languageContext = languageContext;
            _scope = scope;
            _parent = parent;
        }
Exemplo n.º 4
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        public static void PerformModuleReload(PythonContext context, PythonDictionary dict) {
            if (!context.HasModuleState(_zip_directory_cache_key))
                context.SetModuleState(_zip_directory_cache_key, new PythonDictionary());

            dict["_zip_directory_cache"] = context.GetModuleState(_zip_directory_cache_key);
            InitModuleExceptions(context, dict);
        }
Exemplo n.º 5
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        public static void PerformModuleReload(PythonContext/*!*/ context, PythonDictionary/*!*/ dict) {            
            var socket = context.GetBuiltinModule("socket");
            var socketError = PythonSocket.GetSocketError(context, socket.__dict__);
            
            context.EnsureModuleException("SSLError", socketError, dict, "SSLError", "ssl");

        }
Exemplo n.º 6
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 public static void PerformModuleReload(PythonContext context, PythonDictionary dict) {
     PythonModule scope = Importer.ImportModule(context.SharedContext, context.SharedContext.GlobalDict, "itertools", false, -1) as PythonModule;
     if (scope != null) {
         dict["map"] = scope.__dict__["imap"];
         dict["filter"] = scope.__dict__["ifilter"];
         dict["zip"] = scope.__dict__["izip"];
     }
 }
Exemplo n.º 7
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 public static void PerformModuleReload(PythonContext context, IAttributesCollection dict) {
     PythonModule scope = Importer.ImportModule(context.SharedContext, context.SharedContext.GlobalDict, "itertools", false, -1) as PythonModule;
     if (scope != null) {
         dict[SymbolTable.StringToId("map")] = scope.__dict__["imap"];
         dict[SymbolTable.StringToId("filter")] = scope.__dict__["ifilter"];
         dict[SymbolTable.StringToId("zip")] = scope.__dict__["izip"];
     }
 }
Exemplo n.º 8
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 private static PythonSignalState MakeSignalState(PythonContext context) {
     if (Environment.OSVersion.Platform == PlatformID.Unix
         || Environment.OSVersion.Platform == PlatformID.MacOSX) {
         return MakePosixSignalState(context);
     } else {
         return MakeNtSignalState(context);
     }
 }
Exemplo n.º 9
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        /// <summary>
        /// Runs the formatting operation on the given format and keyword arguments
        /// </summary>
        public static string/*!*/ FormatString(PythonContext/*!*/ context, string/*!*/ format, PythonTuple/*!*/ args, IAttributesCollection/*!*/ kwArgs) {
            ContractUtils.RequiresNotNull(context, "context");
            ContractUtils.RequiresNotNull(format, "format");
            ContractUtils.RequiresNotNull(args, "args");
            ContractUtils.RequiresNotNull(kwArgs, "kwArgs");

            return Formatter.FormatString(context, format, args, kwArgs);
        }
Exemplo n.º 10
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 public static void PerformModuleReload(PythonContext context, IAttributesCollection dict) {
     Scope scope = Importer.ImportModule(context.SharedContext, context.SharedContext.GlobalScope.Dict, "itertools", false, -1) as Scope;
     if (scope != null) {
         dict[SymbolTable.StringToId("map")] = scope.LookupName(context, SymbolTable.StringToId("imap"));
         dict[SymbolTable.StringToId("filter")] = scope.LookupName(context, SymbolTable.StringToId("ifilter"));
         dict[SymbolTable.StringToId("zip")] = scope.LookupName(context, SymbolTable.StringToId("izip"));
     }
 }
Exemplo n.º 11
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 public static void PerformModuleReload(PythonContext/*!*/ context, IAttributesCollection/*!*/ dict) {
     context.EnsureModuleException("PickleError", dict, "PickleError", "cPickle");
     context.EnsureModuleException("PicklingError", dict, "PicklingError", "cPickle");
     context.EnsureModuleException("UnpicklingError", dict, "UnpicklingError", "cPickle");
     context.EnsureModuleException("UnpickleableError", dict, "UnpickleableError", "cPickle");
     context.EnsureModuleException("BadPickleGet", dict, "BadPickleGet", "cPickle");
     dict[Symbols.Builtins] = context.BuiltinModuleInstance;
     dict[SymbolTable.StringToId("compatible_formats")] = PythonOps.MakeList("1.0", "1.1", "1.2", "1.3", "2.0");
 }
Exemplo n.º 12
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 public static void PerformModuleReload(PythonContext/*!*/ context, PythonDictionary/*!*/ dict) {
     context.EnsureModuleException("PickleError", dict, "PickleError", "cPickle");
     context.EnsureModuleException("PicklingError", dict, "PicklingError", "cPickle");
     context.EnsureModuleException("UnpicklingError", dict, "UnpicklingError", "cPickle");
     context.EnsureModuleException("UnpickleableError", dict, "UnpickleableError", "cPickle");
     context.EnsureModuleException("BadPickleGet", dict, "BadPickleGet", "cPickle");
     dict["__builtins__"] = context.BuiltinModuleInstance;
     dict["compatible_formats"] = PythonOps.MakeList("1.0", "1.1", "1.2", "1.3", "2.0");
 }
Exemplo n.º 13
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        /// <summary>
        /// Creates a new ModuleContext for the specified module.
        /// </summary>
        public ModuleContext(PythonModule/*!*/ module, PythonContext/*!*/ creatingContext) {
            ContractUtils.RequiresNotNull(module, "module");
            ContractUtils.RequiresNotNull(creatingContext, "creatingContext");

            _globals = module.__dict__;
            _pyContext = creatingContext;
            _globalContext = new CodeContext(_globals, this);
            _module = module;
        }
Exemplo n.º 14
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        public StaticGlobalAllocator(PythonContext/*!*/ context, string name) {
            _typeGen = Snippets.Shared.DefineType(name, typeof(object), false, false);

            _codeContextField = _typeGen.AddStaticField(typeof(CodeContext), "__global_context");
            _codeContext = CreateFieldBuilderExpression(_codeContextField);

            _scope = new Scope(new PythonDictionary(new GlobalDictionaryStorage(_globalVals)));
            _context = new CodeContext(_scope, context);
        }
Exemplo n.º 15
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 private static void InitModuleExceptions(PythonContext context,
     PythonDictionary dict)
 {
     ZipImportError = context.EnsureModuleException(
         "zipimport.ZipImportError",
         PythonExceptions.ImportError,
         typeof(PythonExceptions.BaseException),
         dict, "ZipImportError", "zipimport",
         msg => new ImportException(msg));
 }
Exemplo n.º 16
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        /// <summary>
        /// Creates a new ModuleContext which is backed by the specified dictionary.
        /// </summary>
        public ModuleContext(PythonDictionary/*!*/ globals, PythonContext/*!*/ creatingContext) {
            ContractUtils.RequiresNotNull(globals, "globals");
            ContractUtils.RequiresNotNull(creatingContext, "creatingContext");

            _globals = globals;
            _pyContext = creatingContext;
            _globalContext = new CodeContext(globals, this);
            _module = new PythonModule(globals);
            _module.Scope.SetExtension(_pyContext.ContextId, new PythonScopeExtension(_pyContext, _module, this));
        }
Exemplo n.º 17
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 public static void PerformModuleReload(PythonContext/*!*/ context, IAttributesCollection/*!*/ dict) {
     dict.Add(SymbolTable.StringToId(_keyDefaultAction), "default");
     dict.Add(SymbolTable.StringToId(_keyOnceRegistry), new PythonDictionary());
     dict.Add(SymbolTable.StringToId(_keyFilters), new List() {
         // Default filters
         PythonTuple.MakeTuple("ignore", null, PythonExceptions.PendingDeprecationWarning, null, 0),
         PythonTuple.MakeTuple("ignore", null, PythonExceptions.ImportWarning, null, 0),
         PythonTuple.MakeTuple("ignore", null, PythonExceptions.BytesWarning, null, 0)
     });
     context.SetModuleState(_keyFields, dict);
 }
Exemplo n.º 18
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        /// <summary>
        /// Constructor used to create a FunctionCode for code that's been serialized to disk.  
        /// 
        /// Code constructed this way cannot be interpreted or debugged using sys.settrace/sys.setprofile.
        /// 
        /// Function codes created this way do support recursion enforcement and are therefore registered in the global function code registry.
        /// </summary>
        internal FunctionCode(PythonContext context, Delegate code, Compiler.Ast.ScopeStatement scope, string documentation, int localCount) {
            _normalDelegate = code;
            _lambda = scope;
            _argCount = CalculateArgumentCount();

            // need to take this lock to ensure sys.settrace/sys.setprofile is not actively changing
            lock (_CodeCreateAndUpdateDelegateLock) {
                Target = AddRecursionCheck(context, code);
            }

            RegisterFunctionCode(context);
        }
Exemplo n.º 19
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        public static void PerformModuleReload(PythonContext/*!*/ context, PythonDictionary/*!*/ dict) {
            if (!context.HasModuleState(_defaultTimeoutKey)) {
                context.SetModuleState(_defaultTimeoutKey, null);
            }

            context.SetModuleState(_defaultBufsizeKey, DefaultBufferSize);

            PythonType socketErr = GetSocketError(context, dict);
            context.EnsureModuleException("socketherror", socketErr, dict, "herror", "socket");
            context.EnsureModuleException("socketgaierror", socketErr, dict, "gaierror", "socket");
            context.EnsureModuleException("sockettimeout", socketErr, dict, "timeout", "socket");
        }
Exemplo n.º 20
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        public static void PerformModuleReload(PythonContext/*!*/ context, IAttributesCollection/*!*/ dict) {
            if (!context.HasModuleState(_defaultTimeoutKey)) {
                context.SetModuleState(_defaultTimeoutKey, null);
            }

            context.SetModuleState(_defaultBufsizeKey, DefaultBufferSize);

            context.EnsureModuleException("sslerror", dict, "sslerror", "socket");
            PythonType socketErr = context.EnsureModuleException("socketerror", PythonExceptions.IOError, dict, "error", "socket");
            context.EnsureModuleException("socketherror", socketErr, dict, "herror", "socket");
            context.EnsureModuleException("socketgaierror", socketErr, dict, "gaierror", "socket");
            context.EnsureModuleException("sockettimeout", socketErr, dict, "timeout", "socket");
        }
Exemplo n.º 21
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 private static void InitModuleExceptions(PythonContext context, PythonDictionary dict)
 {
     Warning = context.EnsureModuleException("sqlite.Warning", PythonExceptions.StandardError, dict, "Warning", "_sqlite3");
     Error = context.EnsureModuleException("sqlite.Error", PythonExceptions.StandardError, dict, "Error", "_sqlite3");
     InterfaceError = context.EnsureModuleException("sqlite.InterfaceError", Error, dict, "InterfaceError", "_sqlite3");
     DatabaseError = context.EnsureModuleException("sqlite.DatabaseError", Error, dict, "DatabaseError", "_sqlite3");
     DataError = context.EnsureModuleException("sqlite.DataError", DatabaseError, dict, "DataError", "_sqlite3");
     OperationalError = context.EnsureModuleException("sqlite.OperationalError", DatabaseError, dict, "OperationalError", "_sqlite3");
     IntegrityError = context.EnsureModuleException("sqlite.IntegrityError", DatabaseError, dict, "IntegrityError", "_sqlite3");
     InternalError = context.EnsureModuleException("sqlite.InternalError", DatabaseError, dict, "InternalError", "_sqlite3");
     ProgrammingError = context.EnsureModuleException("sqlite.ProgrammingError", DatabaseError, dict, "ProgrammingError", "_sqlite3");
     NotSupportedError = context.EnsureModuleException("sqlite.NotSupportedError", DatabaseError, dict, "NotSupportedError", "_sqlite3");
 }
Exemplo n.º 22
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 public static void PerformModuleReload(PythonContext/*!*/ context, PythonDictionary/*!*/ dict) {
     context.GetOrCreateModuleState(_keyFields, () => {
         dict.Add(_keyDefaultAction, "default");
         dict.Add(_keyOnceRegistry, new PythonDictionary());
         dict.Add(_keyFilters, new List() {
             // Default filters
             PythonTuple.MakeTuple("ignore", null, PythonExceptions.PendingDeprecationWarning, null, 0),
             PythonTuple.MakeTuple("ignore", null, PythonExceptions.ImportWarning, null, 0),
             PythonTuple.MakeTuple("ignore", null, PythonExceptions.BytesWarning, null, 0)
         });
         return dict;
     });
 }
Exemplo n.º 23
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        public static void PerformModuleReload(PythonContext context, PythonDictionary dict)
        {
            if (!context.HasModuleState(_fieldSizeLimitKey))
            {
                context.SetModuleState(_fieldSizeLimitKey, FieldSizeLimit);
            }

            if (!context.HasModuleState(_dialectRegistryKey))
            {
                context.SetModuleState(_dialectRegistryKey,
                    new DialectRegistry());
            }
            InitModuleExceptions(context, dict);
        }
Exemplo n.º 24
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        public static void PerformModuleReload(PythonContext/*!*/ context, PythonDictionary/*!*/ dict) {
            List defaultFilters = new List();
            if (context.PythonOptions.WarnPython30) {
                defaultFilters.AddNoLock(PythonTuple.MakeTuple("ignore", null, PythonExceptions.DeprecationWarning, null, 0));
            }
            defaultFilters.AddNoLock(PythonTuple.MakeTuple("ignore", null, PythonExceptions.PendingDeprecationWarning, null, 0));
            defaultFilters.AddNoLock(PythonTuple.MakeTuple("ignore", null, PythonExceptions.ImportWarning, null, 0));
            defaultFilters.AddNoLock(PythonTuple.MakeTuple("ignore", null, PythonExceptions.BytesWarning, null, 0));

            context.GetOrCreateModuleState(_keyFields, () => {
                dict.Add(_keyDefaultAction, "default");
                dict.Add(_keyOnceRegistry, new PythonDictionary());
                dict.Add(_keyFilters, defaultFilters);
                return dict;
            });
        }
Exemplo n.º 25
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        public static void PerformModuleReload(PythonContext/*!*/ context, IAttributesCollection/*!*/ dict) {

            context.EnsureModuleException("ArgumentError", dict, "ArgumentError", "_ctypes");
            context.EnsureModuleException("COMError", dict, "COMError", "_ctypes");

            // TODO: Provide an implementation which is coordinated with our _refCountTable
            context.SystemState.__dict__["getrefcount"] = null;
            PythonDictionary pointerTypeCache = new PythonDictionary();
            dict[SymbolTable.StringToId("_pointer_type_cache")] = pointerTypeCache;
            context.SetModuleState(_pointerTypeCacheKey, pointerTypeCache);

            if (Environment.OSVersion.Platform == PlatformID.Win32NT ||
                Environment.OSVersion.Platform == PlatformID.Win32S ||
                Environment.OSVersion.Platform == PlatformID.Win32Windows ||
                Environment.OSVersion.Platform == PlatformID.WinCE) {
                context.SetModuleState(_conversion_mode, PythonTuple.MakeTuple("mbcs", "ignore"));
            } else {
                context.SetModuleState(_conversion_mode, PythonTuple.MakeTuple("ascii", "strict"));
            }
        }
Exemplo n.º 26
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        /// <summary>
        /// Constructor used to create a FunctionCode for code that's been serialized to disk.  
        /// 
        /// Code constructed this way cannot be interpreted or debugged using sys.settrace/sys.setprofile.
        /// 
        /// Function codes created this way do support recursion enforcement and are therefore registered in the global function code registry.
        /// </summary>
        internal FunctionCode(PythonContext context, Delegate code, string name, string documentation, string[] argNames, FunctionAttributes flags, SourceSpan span, string path, string[] freeVars, string[] names, string[] cellVars, string[] varNames, int localCount) {
            _name = name;
            _span = span;
            _initialDoc = documentation;
            _argNames = argNames;
            _flags = flags;
            _span = span;
            _filename = path;
            _freevars = StringArrayToTuple(freeVars);
            _names = StringArrayToTuple(names);
            _cellvars = StringArrayToTuple(cellVars);
            _varnames = StringArrayToTuple(varNames);
            _localCount = localCount;

            _normalDelegate = code;

            // need to take this lock to ensure sys.settrace/sys.setprofile is not actively changing
            lock (_CodeCreateAndUpdateDelegateLock) {
                Target = AddRecursionCheck(context, code);
            }

            RegisterFunctionCode(context);
        }
Exemplo n.º 27
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        private static object fromkeysAny(CodeContext /*!*/ context, PythonType cls, object o, object value)
        {
            PythonDictionary pyDict;
            object           dict;

            if (cls == TypeCache.Dict)
            {
                string      str;
                ICollection ic = o as ICollection;

                // creating our own dict, try and get the ideal size and add w/o locks
                if (ic != null)
                {
                    pyDict = new PythonDictionary(new CommonDictionaryStorage(ic.Count));
                }
                else if ((str = o as string) != null)
                {
                    pyDict = new PythonDictionary(str.Length);
                }
                else
                {
                    pyDict = new PythonDictionary();
                }

                IEnumerator i = PythonOps.GetEnumerator(o);
                while (i.MoveNext())
                {
                    pyDict._storage.AddNoLock(i.Current, value);
                }

                return(pyDict);
            }
            else
            {
                // call the user type constructor
                dict   = MakeDict(context, cls);
                pyDict = dict as PythonDictionary;
            }

            if (pyDict != null)
            {
                // then store all the keys with their associated value
                IEnumerator i = PythonOps.GetEnumerator(o);
                while (i.MoveNext())
                {
                    pyDict[i.Current] = value;
                }
            }
            else
            {
                // slow path, cls.__new__ returned a user defined dictionary instead of a PythonDictionary.
                PythonContext pc = PythonContext.GetContext(context);
                IEnumerator   i  = PythonOps.GetEnumerator(o);
                while (i.MoveNext())
                {
                    pc.SetIndex(dict, i.Current, value);
                }
            }

            return(dict);
        }
Exemplo n.º 28
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 /// <summary>
 /// Get the unique Profiler instance for this ScriptRuntime
 /// </summary>
 public static Profiler GetProfiler(PythonContext /*!*/ context)
 {
     return(context.GetOrCreateModuleState(_profileKey, () => new Profiler()));
 }
Exemplo n.º 29
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 public static void PerformModuleReload(PythonContext/*!*/ context, PythonDictionary/*!*/ dict) {
     context.SetModuleState(_stackSizeKey, 0);
     context.EnsureModuleException("threaderror", dict, "error", "thread");
 }
Exemplo n.º 30
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 private static PythonModule /*!*/ LoadFromSourceUnit(CodeContext /*!*/ context, SourceUnit /*!*/ sourceCode, string /*!*/ name, string /*!*/ path)
 {
     Assert.NotNull(sourceCode, name, path);
     return(PythonContext.GetContext(context).CompileModule(path, name, sourceCode, ModuleOptions.Initialize | ModuleOptions.Optimized));
 }
Exemplo n.º 31
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 public static void PerformModuleReload(PythonContext/*!*/ context, PythonDictionary/*!*/ dict) {
     PythonSignalState pss = new PythonSignalState(context);
     context.SetModuleState(_PythonSignalStateKey, pss);
     NativeSignal.SetConsoleCtrlHandler(pss.WinAllSignalsHandlerDelegate, true);
 }
Exemplo n.º 32
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 public PythonSignalState(PythonContext pc) {
     SignalPythonContext = pc;
     WinAllSignalsHandlerDelegate = new NativeSignal.WinSignalsHandler(WindowsEventHandler);
     PySignalToPyHandler = new Dictionary<int, object>() {
         { SIGABRT, SIG_DFL},
         { SIGBREAK, SIG_DFL},
         { SIGFPE, SIG_DFL},
         { SIGILL, SIG_DFL},
         { SIGINT, default_int_handler},
         { SIGSEGV, SIG_DFL},
         { SIGTERM, SIG_DFL},
     };
 }
Exemplo n.º 33
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 public static PythonType CreateSubType(PythonContext/*!*/ context, PythonType baseType, string name, string module, string documentation) {
     PythonType res = new PythonType(context, baseType, name, module, documentation);
     res.SetCustomMember(context.SharedContext, "__weakref__", new PythonTypeWeakRefSlot(res));
     res.IsWeakReferencable = true;
     return res;
 }
Exemplo n.º 34
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        /// <summary>
        /// Called by the __builtin__.__import__ functions (general importing) and ScriptEngine (for site.py)
        ///
        /// level indiciates whether to perform absolute or relative imports.
        ///     -1 indicates both should be performed
        ///     0 indicates only absolute imports should be performed
        ///     Positive numbers indicate the # of parent directories to search relative to the calling module
        /// </summary>
        public static object ImportModule(CodeContext /*!*/ context, object globals, string /*!*/ modName, bool bottom, int level)
        {
            if (modName.IndexOf(Path.DirectorySeparatorChar) != -1)
            {
                throw PythonOps.ImportError("Import by filename is not supported.", modName);
            }

            //Debug.WriteLine("Importing: " + modName);

            string           package = null;
            object           attribute;
            PythonDictionary pyGlobals = globals as PythonDictionary;

            if (pyGlobals != null)
            {
                if (pyGlobals._storage.TryGetPackage(out attribute))
                {
                    package = attribute as string;
                    if (package == null && attribute != null)
                    {
                        throw PythonOps.ValueError("__package__ set to non-string");
                    }
                }
                else
                {
                    package = null;
                    if (level > 0)
                    {
                        // explicit relative import, calculate and store __package__
                        object pathAttr, nameAttr;
                        if (pyGlobals._storage.TryGetName(out nameAttr) && nameAttr is string)
                        {
                            if (pyGlobals._storage.TryGetPath(out pathAttr))
                            {
                                pyGlobals["__package__"] = nameAttr;
                            }
                            else
                            {
                                pyGlobals["__package__"] = ((string)nameAttr).rpartition(".")[0];
                            }
                        }
                    }
                }
            }

            object newmod = null;
            string firstName;
            int    firstDot = modName.IndexOf('.');

            if (firstDot == -1)
            {
                firstName = modName;
            }
            else
            {
                firstName = modName.Substring(0, firstDot);
            }
            string finalName = null;

            if (level != 0)
            {
                // try a relative import
                //Debug.WriteLine("Trying a relative import");

                // if importing a.b.c, import "a" first and then import b.c from a
                string       name; // name of the module we are to import in relation to the current module
                PythonModule parentModule;
                List         path; // path to search
                if (TryGetNameAndPath(context, globals, firstName, level, package, out name, out path, out parentModule))
                {
                    finalName = name;
                    // import relative
                    //Debug.WriteLine("Importing relative");
                    if (!TryGetExistingOrMetaPathModule(context, name, path, out newmod))
                    {
                        newmod = ImportFromPath(context, firstName, name, path);
                        if (newmod == null)
                        {
                            //Debug.WriteLine("Adding an indirection entry saying this module does not exist");
                            // add an indirection entry saying this module does not exist
                            // see http://www.python.org/doc/essays/packages.html "Dummy Entries"
                            context.LanguageContext.SystemStateModules[name] = null;
                        }
                        else if (parentModule != null)
                        {
                            //Debug.WriteLine("Setting newmod in dcit");
                            parentModule.__dict__[modName] = newmod;
                        }
                    }
                    else if (firstDot == -1)
                    {
                        // if we imported before having the assembly
                        // loaded and then loaded the assembly we want
                        // to make the assembly available now.
                        //Debug.WriteLine("If imported before having assembly then making assembly now");

                        if (newmod is NamespaceTracker)
                        {
                            //Debug.WriteLine("Newmod is NamespaceTracker");
                            context.ShowCls = true;
                        }
                    }
                }
            }

            if (level <= 0)
            {
                // try an absolute import
                //Debug.WriteLine("Trying an absolute import");
                if (newmod == null)
                {
                    //Debug.WriteLine("newmod is null");
                    object parentPkg;
                    if (!String.IsNullOrEmpty(package) && !PythonContext.GetContext(context).SystemStateModules.TryGetValue(package, out parentPkg))
                    {
                        PythonModule warnModule = new PythonModule();
                        warnModule.__dict__["__file__"] = package;
                        warnModule.__dict__["__name__"] = package;
                        ModuleContext modContext = new ModuleContext(warnModule.__dict__, context.LanguageContext);
                        PythonOps.Warn(
                            modContext.GlobalContext,
                            PythonExceptions.RuntimeWarning,
                            "Parent module '{0}' not found while handling absolute import",
                            package);
                    }

                    //Debug.WriteLine("ImportTopAbsolute: " + context.ToString() + ", " + firstName);
                    newmod    = ImportTopAbsolute(context, firstName);
                    finalName = firstName;
                    if (newmod == null)
                    {
                        return(null);
                    }
                }
            }

            // now import the a.b.c etc.  a needs to be included here
            // because the process of importing could have modified
            // sys.modules.
            string[] parts   = modName.Split('.');
            object   next    = newmod;
            string   curName = null;

            for (int i = 0; i < parts.Length; i++)
            {
                curName = i == 0 ? finalName : curName + "." + parts[i];
                object tmpNext;
                if (TryGetExistingModule(context, curName, out tmpNext))
                {
                    next = tmpNext;
                    if (i == 0)
                    {
                        // need to update newmod if we pulled it out of sys.modules
                        // just in case we're in bottom mode.
                        newmod = next;
                    }
                }
                else if (i != 0)
                {
                    // child module isn't loaded yet, import it.
                    next = ImportModuleFrom(context, next, parts[i]);
                }
                else
                {
                    // top-level module doesn't exist in sys.modules, probably
                    // came from some weird meta path hook.
                    newmod = next;
                }
            }

            return(bottom ? next : newmod);
        }
Exemplo n.º 35
0
        /// <summary>
        /// Interrogates the importing module for __name__ and __path__, which determine
        /// whether the imported module (whose name is 'name') is being imported as nested
        /// module (__path__ is present) or as sibling.
        ///
        /// For sibling import, the full name of the imported module is parent.sibling
        /// For nested import, the full name of the imported module is parent.module.nested
        /// where parent.module is the mod.__name__
        /// </summary>
        /// <param name="context"></param>
        /// <param name="globals">the globals dictionary</param>
        /// <param name="name">Name of the module to be imported</param>
        /// <param name="full">Output - full name of the module being imported</param>
        /// <param name="path">Path to use to search for "full"</param>
        /// <param name="level">the import level for relaive imports</param>
        /// <param name="parentMod">the parent module</param>
        /// <param name="package">the global __package__ value</param>
        /// <returns></returns>
        private static bool TryGetNameAndPath(CodeContext /*!*/ context, object globals, string name, int level, string package, out string full, out List path, out PythonModule parentMod)
        {
            Debug.Assert(level != 0);   // shouldn't be here for absolute imports

            // Unless we can find enough information to perform relative import,
            // we are going to import the module whose name we got
            full      = name;
            path      = null;
            parentMod = null;

            // We need to get __name__ to find the name of the imported module.
            // If absent, fall back to absolute import
            object attribute;

            PythonDictionary pyGlobals = globals as PythonDictionary;

            if (pyGlobals == null || !pyGlobals._storage.TryGetName(out attribute))
            {
                return(false);
            }

            // And the __name__ needs to be string
            string modName = attribute as string;

            if (modName == null)
            {
                return(false);
            }

            string pn;

            if (package == null)
            {
                // If the module has __path__ (and __path__ is list), nested module is being imported
                // otherwise, importing sibling to the importing module
                if (pyGlobals._storage.TryGetPath(out attribute) && (path = attribute as List) != null)
                {
                    // found __path__, importing nested module. The actual name of the nested module
                    // is the name of the mod plus the name of the imported module
                    if (level == -1)
                    {
                        // absolute import of some module
                        full = modName + "." + name;
                        object parentModule;
                        if (PythonContext.GetContext(context).SystemStateModules.TryGetValue(modName, out parentModule))
                        {
                            parentMod = parentModule as PythonModule;
                        }
                    }
                    else if (String.IsNullOrEmpty(name))
                    {
                        // relative import of ancestor
                        full = (StringOps.rsplit(modName, ".", level - 1)[0] as string);
                    }
                    else
                    {
                        // relative import of some ancestors child
                        string parentName = (StringOps.rsplit(modName, ".", level - 1)[0] as string);
                        full = parentName + "." + name;
                        object parentModule;
                        if (PythonContext.GetContext(context).SystemStateModules.TryGetValue(parentName, out parentModule))
                        {
                            parentMod = parentModule as PythonModule;
                        }
                    }
                    return(true);
                }

                // importing sibling. The name of the imported module replaces
                // the last element in the importing module name
                int lastDot = modName.LastIndexOf('.');
                if (lastDot == -1)
                {
                    // name doesn't include dot, only absolute import possible
                    if (level > 0)
                    {
                        throw PythonOps.ValueError("Attempted relative import in non-package");
                    }

                    return(false);
                }

                // need to remove more than one name
                int tmpLevel = level;
                while (tmpLevel > 1 && lastDot != -1)
                {
                    lastDot = modName.LastIndexOf('.', lastDot - 1);
                    tmpLevel--;
                }

                if (lastDot == -1)
                {
                    pn = modName;
                }
                else
                {
                    pn = modName.Substring(0, lastDot);
                }
            }
            else
            {
                // __package__ doesn't include module name, so level is - 1.
                pn = GetParentPackageName(level - 1, package.Split('.'));
            }

            path = GetParentPathAndModule(context, pn, out parentMod);
            if (path != null)
            {
                if (String.IsNullOrEmpty(name))
                {
                    full = pn;
                }
                else
                {
                    full = pn + "." + name;
                }
                return(true);
            }

            if (level > 0)
            {
                throw PythonOps.SystemError("Parent module '{0}' not loaded, cannot perform relative import", pn);
            }
            // not enough information - absolute import
            return(false);
        }
Exemplo n.º 36
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        internal static object ReloadModule(CodeContext /*!*/ context, PythonModule /*!*/ module, PythonFile file)
        {
            PythonContext pc = PythonContext.GetContext(context);

            // We created the module and it only contains Python code. If the user changes
            // __file__ we'll reload from that file.
            string fileName = module.GetFile() as string;

            // built-in module:
            if (fileName == null)
            {
                ReloadBuiltinModule(context, module);
                return(module);
            }

            string name = module.GetName() as string;

            if (name != null)
            {
                List path = null;
                // find the parent module and get it's __path__ property
                int dotIndex = name.LastIndexOf('.');
                if (dotIndex != -1)
                {
                    PythonModule parentModule;
                    path = GetParentPathAndModule(context, name.Substring(0, dotIndex), out parentModule);
                }

                object reloaded;
                if (TryLoadMetaPathModule(context, module.GetName() as string, path, out reloaded) && reloaded != null)
                {
                    return(module);
                }

                List sysPath;
                if (PythonContext.GetContext(context).TryGetSystemPath(out sysPath))
                {
                    object ret = ImportFromPathHook(context, name, name, sysPath, null);
                    if (ret != null)
                    {
                        return(ret);
                    }
                }
            }

            SourceUnit sourceUnit;

            if (file != null)
            {
                sourceUnit = pc.CreateSourceUnit(new PythonFileStreamContentProvider(file), fileName, file.Encoding, SourceCodeKind.File);
            }
            else
            {
                if (!pc.DomainManager.Platform.FileExists(fileName))
                {
                    throw PythonOps.SystemError("module source file not found");
                }

                sourceUnit = pc.CreateFileUnit(fileName, pc.DefaultEncoding, SourceCodeKind.File);
            }
            pc.GetScriptCode(sourceUnit, name, ModuleOptions.None, Compiler.CompilationMode.Lookup).Run(module.Scope);
            return(module);
        }
Exemplo n.º 37
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        private static object ImportTopAbsolute(CodeContext /*!*/ context, string /*!*/ name)
        {
            //Debug.WriteLine("Importing step 4: " + name);

            object ret;

            //Debug.WriteLine("TryGetExistingModule");
            if (TryGetExistingModule(context, name, out ret))
            {
                //Debug.WriteLine("Getting existing module");
                if (IsReflected(ret))
                {
                    // Even though we found something in sys.modules, we need to check if a
                    // clr.AddReference has invalidated it. So try ImportReflected again.
                    ret = ImportReflected(context, name) ?? ret;
                    //Debug.WriteLine("Import refelected");
                }

                NamespaceTracker rp = ret as NamespaceTracker;
                if (rp != null || ret == PythonContext.GetContext(context).ClrModule)
                {
                    context.ShowCls = true;
                }

                //Debug.WriteLine("Got existing module");
                return(ret);
            }

            //Debug.WriteLine("TryLoadMetaPathModule");
            if (TryLoadMetaPathModule(context, name, null, out ret))
            {
                //Debug.WriteLine("LoadMetaPathModule");
                return(ret);
            }

            //Debug.WriteLine("Importing builtin");
            ret = ImportBuiltin(context, name);
            if (ret != null)
            {
                return(ret);               /*Debug.WriteLine("Imported builtin");*/
            }

            List path;

            //Debug.WriteLine("Trygetsyspath");
            if (PythonContext.GetContext(context).TryGetSystemPath(out path))
            {
                //Debug.WriteLine("Importing from path");
                ret = ImportFromPath(context, name, name, path);
                if (ret != null)
                {
                    return(ret);               /*Debug.WriteLine("Imported from path");*/
                }
            }

            //Debug.WriteLine("Importing refelcted");
            ret = ImportReflected(context, name);
            if (ret != null)
            {
                return(ret);               /*Debug.WriteLine("Imported reflected");*/
            }

            //Debug.WriteLine("Returning null");
            return(null);
        }
Exemplo n.º 38
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 public override DynamicMetaObject BindGetMember(GetMemberBinder binder)
 {
     return(GetMemberWorker(binder, PythonContext.GetCodeContextMO(binder)));
 }
Exemplo n.º 39
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 /// <summary>
 /// Creates a new module backed by a Scope.  Used for creating modules for foreign Scope's.
 /// </summary>
 internal PythonModule(PythonContext context, Scope scope)
 {
     _dict  = new PythonDictionary(new ScopeDictionaryStorage(context, scope));
     _scope = scope;
 }
 public PythonDocumentationProvider(PythonContext context)
 {
     _context = context;
 }
Exemplo n.º 41
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 public OutputWriter(PythonContext /*!*/ context, bool isErrorOutput)
 {
     Assert.NotNull(context);
     _context       = context;
     _isErrorOutput = isErrorOutput;
 }