|
| 1 | +using System; |
| 2 | +using System.Linq; |
| 3 | +using System.IO; |
| 4 | +using System.Reflection; |
| 5 | + |
| 6 | +namespace Python.Runtime |
| 7 | +{ |
| 8 | + //github.com/ <summary> |
| 9 | + //github.com/ The CLR module is the root handler used by the magic import hook |
| 10 | + //github.com/ to import assemblies. It has a fixed module name "clr" and doesn't |
| 11 | + //github.com/ provide a namespace. |
| 12 | + //github.com/ </summary> |
| 13 | + [Serializable] |
| 14 | + internal class CLRModule : ModuleObject |
| 15 | + { |
| 16 | + protected static bool interactive_preload = true; |
| 17 | + internal static bool preload; |
| 18 | + // XXX Test performance of new features // |
| 19 | + internal static bool _SuppressDocs = false; |
| 20 | + internal static bool _SuppressOverloads = false; |
| 21 | + |
| 22 | + static CLRModule() |
| 23 | + { |
| 24 | + Reset(); |
| 25 | + } |
| 26 | + |
| 27 | + private CLRModule() : base("clr") |
| 28 | + { |
| 29 | + _namespace = string.Empty; |
| 30 | + } |
| 31 | + |
| 32 | + internal static NewReference Create(out CLRModule module) |
| 33 | + { |
| 34 | + module = new CLRModule(); |
| 35 | + return module.Alloc(); |
| 36 | + } |
| 37 | + |
| 38 | + public static void Reset() |
| 39 | + { |
| 40 | + interactive_preload = true; |
| 41 | + preload = false; |
| 42 | + |
| 43 | + // XXX Test performance of new features // |
| 44 | + _SuppressDocs = false; |
| 45 | + _SuppressOverloads = false; |
| 46 | + } |
| 47 | + |
| 48 | + //github.com/ <summary> |
| 49 | + //github.com/ The initializing of the preload hook has to happen as late as |
| 50 | + //github.com/ possible since sys.ps1 is created after the CLR module is |
| 51 | + //github.com/ created. |
| 52 | + //github.com/ </summary> |
| 53 | + internal void InitializePreload() |
| 54 | + { |
| 55 | + if (interactive_preload) |
| 56 | + { |
| 57 | + interactive_preload = false; |
| 58 | + if (!Runtime.PySys_GetObject("ps1").IsNull) |
| 59 | + { |
| 60 | + preload = true; |
| 61 | + } |
| 62 | + else |
| 63 | + { |
| 64 | + Exceptions.Clear(); |
| 65 | + preload = false; |
| 66 | + } |
| 67 | + } |
| 68 | + } |
| 69 | + |
| 70 | + [ModuleFunction] |
| 71 | + public static bool getPreload() |
| 72 | + { |
| 73 | + return preload; |
| 74 | + } |
| 75 | + |
| 76 | + [ModuleFunction] |
| 77 | + public static void setPreload(bool preloadFlag) |
| 78 | + { |
| 79 | + preload = preloadFlag; |
| 80 | + } |
| 81 | + |
| 82 | + //[ModuleProperty] |
| 83 | + public static bool SuppressDocs |
| 84 | + { |
| 85 | + get { return _SuppressDocs; } |
| 86 | + set { _SuppressDocs = value; } |
| 87 | + } |
| 88 | + |
| 89 | + //[ModuleProperty] |
| 90 | + public static bool SuppressOverloads |
| 91 | + { |
| 92 | + get { return _SuppressOverloads; } |
| 93 | + set { _SuppressOverloads = value; } |
| 94 | + } |
| 95 | + |
| 96 | + [ModuleFunction] |
| 97 | + [ForbidPythonThreads] |
| 98 | + public static Assembly AddReference(string name) |
| 99 | + { |
| 100 | + AssemblyManager.UpdatePath(); |
| 101 | + var origNs = AssemblyManager.GetNamespaces(); |
| 102 | + Assembly? assembly = AssemblyManager.FindLoadedAssembly(name); |
| 103 | + if (assembly == null) |
| 104 | + { |
| 105 | + assembly = AssemblyManager.LoadAssemblyPath(name); |
| 106 | + } |
| 107 | + if (assembly == null && AssemblyManager.TryParseAssemblyName(name) is { } parsedName) |
| 108 | + { |
| 109 | + assembly = AssemblyManager.LoadAssembly(parsedName); |
| 110 | + } |
| 111 | + if (assembly == null) |
| 112 | + { |
| 113 | + assembly = AssemblyManager.LoadAssemblyFullPath(name); |
| 114 | + } |
| 115 | + if (assembly == null) |
| 116 | + { |
| 117 | + throw new FileNotFoundException($"Unable to find assembly '{name}'."); |
| 118 | + } |
| 119 | + // Classes that are not in a namespace needs an extra nudge to be found. |
| 120 | + ImportHook.UpdateCLRModuleDict(); |
| 121 | + |
| 122 | + // A bit heavyhanded, but we can't use the AssemblyManager's AssemblyLoadHandler |
| 123 | + // method because it may be called from other threads, leading to deadlocks |
| 124 | + // if it is called while Python code is executing. |
| 125 | + var currNs = AssemblyManager.GetNamespaces().Except(origNs); |
| 126 | + foreach(var ns in currNs) |
| 127 | + { |
| 128 | + ImportHook.AddNamespaceWithGIL(ns); |
| 129 | + } |
| 130 | + return assembly; |
| 131 | + } |
| 132 | + |
| 133 | + //github.com/ <summary> |
| 134 | + //github.com/ Get a Type instance for a class object. |
| 135 | + //github.com/ clr.GetClrType(IComparable) gives you the Type for IComparable, |
| 136 | + //github.com/ that you can e.g. perform reflection on. Similar to typeof(IComparable) in C# |
| 137 | + //github.com/ or clr.GetClrType(IComparable) in IronPython. |
| 138 | + //github.com/ |
| 139 | + //github.com/ </summary> |
| 140 | + //github.com/ <param name="type"></param> |
| 141 | + //github.com/ <returns>The Type object</returns> |
| 142 | + |
| 143 | + [ModuleFunction] |
| 144 | + public static Type GetClrType(Type type) |
| 145 | + { |
| 146 | + return type; |
| 147 | + } |
| 148 | + |
| 149 | + [ModuleFunction] |
| 150 | + [ForbidPythonThreads] |
| 151 | + public static string FindAssembly(string name) |
| 152 | + { |
| 153 | + AssemblyManager.UpdatePath(); |
| 154 | + return AssemblyManager.FindAssembly(name); |
| 155 | + } |
| 156 | + |
| 157 | + [ModuleFunction] |
| 158 | + public static string[] ListAssemblies(bool verbose) |
| 159 | + { |
| 160 | + AssemblyName[] assnames = AssemblyManager.ListAssemblies(); |
| 161 | + var names = new string[assnames.Length]; |
| 162 | + for (var i = 0; i < assnames.Length; i++) |
| 163 | + { |
| 164 | + if (verbose) |
| 165 | + { |
| 166 | + names[i] = assnames[i].FullName; |
| 167 | + } |
| 168 | + else |
| 169 | + { |
| 170 | + names[i] = assnames[i].Name; |
| 171 | + } |
| 172 | + } |
| 173 | + return names; |
| 174 | + } |
| 175 | + |
| 176 | + //github.com/ <summary> |
| 177 | + //github.com/ Note: This should *not* be called directly. |
| 178 | + //github.com/ The function that get/import a CLR assembly as a python module. |
| 179 | + //github.com/ This function should only be called by the import machinery as seen |
| 180 | + //github.com/ in importhook.cs |
| 181 | + //github.com/ </summary> |
| 182 | + //github.com/ <param name="spec">A ModuleSpec Python object</param> |
| 183 | + //github.com/ <returns>A new reference to the imported module, as a PyObject.</returns> |
| 184 | + [ModuleFunction] |
| 185 | + [ForbidPythonThreads] |
| 186 | + public static PyObject _load_clr_module(PyObject spec) |
| 187 | + { |
| 188 | + using var modname = spec.GetAttr("name"); |
| 189 | + string name = modname.As<string?>() ?? throw new ArgumentException("name must not be None"); |
| 190 | + var mod = ImportHook.Import(name); |
| 191 | + return mod; |
| 192 | + } |
| 193 | + |
| 194 | + [ModuleFunction] |
| 195 | + [ForbidPythonThreads] |
| 196 | + public static int _add_pending_namespaces() => ImportHook.AddPendingNamespaces(); |
| 197 | + } |
| 198 | +} |
0 commit comments