pFad - Phonifier reborn

diff --git a/src/python_tests_runner/PythonTestRunner.cs b/src/python_tests_runner/PythonTestRunner.cs index 05298997b..dcc76e9d9 100644 --- a/src/python_tests_runner/PythonTestRunner.cs +++ b/src/python_tests_runner/PythonTestRunner.cs @@ -17,6 +17,8 @@ public class PythonTestRunner [OneTimeSetUp] public void SetUp() { + Python.Runtime.Runtime.PythonDLL = + "C:\\Python37.2\\python37.dll"; PythonEngine.Initialize(); } @@ -35,6 +37,13 @@ static IEnumerable PythonTestCases() // Add the test that you want to debug here. yield return new[] { "test_indexer", "test_boolean_indexer" }; yield return new[] { "test_delegate", "test_bool_delegate" }; + yield return new[] { "test_subclass", "test_virtual_generic_method" }; + yield return new[] { "test_subclass", "test_interface_and_class_impl2" }; + yield return new[] { "test_subclass", "test_class_with_attributes" }; + yield return new[] { "test_subclass", "test_class_with_advanced_attribute" }; + yield return new[] { "test_subclass", "test_more_subclasses" }; + yield return new[] { "test_subclass", "test_more_subclasses2" }; + yield return new[] { "test_subclass", "abstract_test" }; } ///

diff --git a/src/runtime/PythonTypes/PyObject.cs b/src/runtime/PythonTypes/PyObject.cs index bda2d9c02..31e00a17b 100644 --- a/src/runtime/PythonTypes/PyObject.cs +++ b/src/runtime/PythonTypes/PyObject.cs @@ -25,7 +25,7 @@ public partial class PyObject : DynamicObject, IDisposable, ISerializable /// Trace stack for PyObject's construction ///

public StackTrace Traceback { get; } = new StackTrace(1); -#endif +#endif protected IntPtr rawPtr = IntPtr.Zero; internal readonly int run = Runtime.GetRun(); @@ -165,7 +165,7 @@ public static PyObject FromManagedObject(object ob) { if (!Converter.ToManaged(obj, t, out var result, true)) { - throw new InvalidCastException("cannot convert object to target type", + throw new InvalidCastException($"Cannot convert object to target type '{t}'.", PythonException.FetchCurrentOrNull(out _)); } return result; @@ -235,7 +235,7 @@ public void Dispose() { GC.SuppressFinalize(this); Dispose(true); - + } internal StolenReference Steal() @@ -1325,7 +1325,7 @@ private bool TryCompare(PyObject arg, int op, out object @out) } return true; } - + public override bool TryBinaryOperation(BinaryOperationBinder binder, object arg, out object? result) { using var _ = Py.GIL(); diff --git a/src/runtime/PythonTypes/PythonTypeAttribute.cs b/src/runtime/PythonTypes/PythonTypeAttribute.cs new file mode 100644 index 000000000..7dbc413a9 --- /dev/null +++ b/src/runtime/PythonTypes/PythonTypeAttribute.cs @@ -0,0 +1,27 @@ +using System; + +namespace Python.Runtime; + +///

+/// Marks a property type with a specific python type. Normally, properties has .NET types, but if the property has a python type, +/// that cannot be represented in the propert type info, so this attribute is used to mark the property with the corresponding python type. +///

+public class PythonTypeAttribute : Attribute +{ + ///

Type name.

+ public string TypeName { get; } + + ///

Importable module name.

+ public string Module { get; } + + ///

+ /// Creates a new instance of PythonTypeAttribute. + ///

+ /// + /// + public PythonTypeAttribute(string pyTypeModule, string pyTypeName) + { + TypeName = pyTypeName; + Module = pyTypeModule; + } +} diff --git a/src/runtime/Resources/clr.py b/src/runtime/Resources/clr.py index d4330a4d5..7bda24880 100644 --- a/src/runtime/Resources/clr.py +++ b/src/runtime/Resources/clr.py @@ -21,16 +21,18 @@ def test(self): string z = x.test; // calls into python and returns "x" """ - def __init__(self, type_, fget=None, fset=None): + def __init__(self, type_, fget=None, fset=None, attributes = []): self.__name__ = getattr(fget, "__name__", None) self._clr_property_type_ = type_ self.fget = fget self.fset = fset - + self._clr_attributes_ = attributes def __call__(self, fget): - return self.__class__(self._clr_property_type_, + self.__class__(self._clr_property_type_, fget=fget, - fset=self.fset) + fset=self.fset, + attributes = self._clr_attributes_) + def setter(self, fset): self.fset = fset @@ -48,7 +50,69 @@ def __set__(self, instance, value): raise AttributeError("%s is read-only" % self.__name__) return self.fset.__get__(instance, None)(value) + # TODO: I am not sure this add_attribute is actually necessary. + def add_attribute(self, *args, **kwargs): + """Adds an attribute to this class. + If the first argument is a tuple we assume it is a tuple containing everything to initialize the attribute. + Otherwise, the first arg should be a .net type implementing Attribute.""" + lst = [] + if len(args) > 0: + if isinstance(args[0], tuple): + lst = args + else: + lst = [(args[0], args[1:], kwargs)] + self._clr_attributes_.extend(lst) + return self + +class property(object): + """ + property constructor for creating properties with implicit get/set. + + It can be used as such: + e.g.:: + + class X(object): + A = clr.property(Double, 3.14)\ + .add_attribute(Browsable(False)) + """ + def __init__(self, type, default = None): + import weakref + self._clr_property_type_ = type + self.default = default + self.values = weakref.WeakKeyDictionary() + self._clr_attributes_ = [] + self.fget = 1 + self.fset = 1 + def __get__(self, instance, owner): + if self.fget != 1: + return self.fget(instance) + v = self.values.get(instance, self.default) + return v + def __set__(self, instance, value): + if self.fset != 1: + self.fset(instance,value) + return + self.values[instance] = value + + def add_attribute(self, *args, **kwargs): + """Adds an attribute to this class. + If the first argument is a tuple we assume it is a tuple containing everything to initialize the attribute. + Otherwise, the first arg should be a .net type implementing Attribute.""" + lst = [] + if len(args) > 0: + if isinstance(args[0], tuple): + lst = args + else: + lst = [(args[0], args[1:], kwargs)] + self._clr_attributes_.extend(lst) + return self + + def __call__(self, func): + self2 = self.__class__(self._clr_property_type_, None) + self2.fget = func + self2._clr_attributes_ = self._clr_attributes_ + return self2 class clrmethod(object): """ Method decorator for exposing python methods to .NET. @@ -67,18 +131,69 @@ def test(self, x): int z = x.test("hello"); // calls into python and returns len("hello") """ - def __init__(self, return_type, arg_types, clrname=None, func=None): + def __init__(self, return_type = None, arg_types = [], clrname=None, func=None, **kwargs): + if return_type == None: + import System + return_type = System.Void self.__name__ = getattr(func, "__name__", None) self._clr_return_type_ = return_type self._clr_arg_types_ = arg_types self._clr_method_name_ = clrname or self.__name__ self.__func = func + if 'attributes' in kwargs: + self._clr_attributes_ = kwargs["attributes"] + else: + self._clr_attributes_ = [] def __call__(self, func): - return self.__class__(self._clr_return_type_, + self2 = self.__class__(self._clr_return_type_, self._clr_arg_types_, clrname=self._clr_method_name_, func=func) + self2._clr_attributes_ = self._clr_attributes_ + return self2 def __get__(self, instance, owner): return self.__func.__get__(instance, owner) + + def add_attribute(self, *args, **kwargs): + """Adds an attribute to this class. + If the first argument is a tuple we assume it is a tuple containing everything to initialize the attribute. + Otherwise, the first arg should be a .net type implementing Attribute.""" + lst = [] + if len(args) > 0: + if isinstance(args[0], tuple): + lst = args + else: + lst = [(args[0], args[1:], kwargs)] + self._clr_attributes_.extend(lst) + return self + +class attribute(object): + """ + Class decorator for adding attributes to .net python classes. + + e.g.:: + @attribute(DisplayName("X Class")) + class X(object): + pass + """ + def __init__(self, *args, **kwargs): + lst = [] + if len(args) > 0: + if isinstance(args[0], tuple): + lst = args + else: + lst = [(args[0], args[1:], kwargs)] + import Python.Runtime + #todo: ensure that attributes only are pushed when @ is used. + self.attr = lst + for item in lst: + Python.Runtime.PythonDerivedType.PushAttribute(item) + + def __call__(self, x): + import Python.Runtime + for item in self.attr: + if Python.Runtime.PythonDerivedType.AssocAttribute(item, x): + pass + return x diff --git a/src/runtime/Runtime.cs b/src/runtime/Runtime.cs index beb577e45..d5558084f 100644 --- a/src/runtime/Runtime.cs +++ b/src/runtime/Runtime.cs @@ -1836,6 +1836,12 @@ internal static void SetNoSiteFlag() return *Delegates.Py_NoSiteFlag; }); } + + internal static uint PyTuple_GetSize(BorrowedReference tuple) + { + IntPtr r = Delegates.PyTuple_Size(tuple); + return (uint)r.ToInt32(); + } } internal class BadPythonDllException : MissingMethodException diff --git a/src/runtime/StateSerialization/MaybeType.cs b/src/runtime/StateSerialization/MaybeType.cs index f3c96e369..549c5f29e 100644 --- a/src/runtime/StateSerialization/MaybeType.cs +++ b/src/runtime/StateSerialization/MaybeType.cs @@ -15,7 +15,6 @@ internal struct MaybeType : ISerializable const string SerializationName = "n"; readonly string name; readonly Type type; - public string DeletedMessage { get @@ -38,6 +37,7 @@ public Type Value public string Name => name; public bool Valid => type != null; + public Type ValueOrNull => type; public override string ToString() { @@ -61,4 +61,4 @@ public void GetObjectData(SerializationInfo serializationInfo, StreamingContext serializationInfo.AddValue(SerializationName, name); } } -} \ No newline at end of file +} diff --git a/src/runtime/TypeManager.cs b/src/runtime/TypeManager.cs index e0a78ba49..8278bb4dc 100644 --- a/src/runtime/TypeManager.cs +++ b/src/runtime/TypeManager.cs @@ -374,7 +374,7 @@ static PyTuple GetBaseTypeTuple(Type clrType) return new PyTuple(bases); } - internal static NewReference CreateSubType(BorrowedReference py_name, BorrowedReference py_base_type, BorrowedReference dictRef) + internal static NewReference CreateSubType(BorrowedReference py_name, IEnumerable py_base_type, IEnumerable interfaces, BorrowedReference dictRef) { // Utility to create a subtype of a managed type with the ability for the // a python subtype able to override the managed implementation @@ -415,17 +415,12 @@ internal static NewReference CreateSubType(BorrowedReference py_name, BorrowedRe } // create the new managed type subclassing the base managed type - if (ManagedType.GetManagedObject(py_base_type) is ClassBase baseClass) - { - return ReflectedClrType.CreateSubclass(baseClass, name, - ns: (string?)namespaceStr, - assembly: (string?)assembly, - dict: dictRef); - } - else - { - return Exceptions.RaiseTypeError("invalid base class, expected CLR class type"); - } + var baseClass = py_base_type.FirstOrDefault(); + + return ReflectedClrType.CreateSubclass(baseClass, interfaces, name, + ns: (string?)namespaceStr, + assembly: (string?)assembly, + dict: dictRef); } internal static IntPtr WriteMethodDef(IntPtr mdef, IntPtr name, IntPtr func, PyMethodFlags flags, IntPtr doc) diff --git a/src/runtime/Types/ClassDerived.cs b/src/runtime/Types/ClassDerived.cs index cf6d9b16b..b5bdad47e 100644 --- a/src/runtime/Types/ClassDerived.cs +++ b/src/runtime/Types/ClassDerived.cs @@ -137,6 +137,117 @@ internal static NewReference ToPython(IPythonDerivedType obj) return result; } + static CustomAttributeBuilder AddAttribute(PyObject attr) + { + // this is a bit complicated because we want to support both unnamed and named arguments + // in C# there is a discrepancy between property setters and named argument wrt attributes + // in python there is no difference. But luckily there is rarely a conflict, so we can treat + // named arguments and named properties or fields the same way. + var tp = new PyTuple(attr); + Type attribute = (Type) tp[0].AsManagedObject(typeof(object)); + if (typeof(Attribute).IsAssignableFrom(attribute) == false) + { + throw new Exception("This type is not an attribute type."); + } + + var args = (PyObject[]) tp[1].AsManagedObject(typeof(PyObject[])); + var dict = new PyDict(tp[2]); + var dict2 = new Dictionary(); + foreach (var key in dict.Keys()) + { + var k = key.As(); + dict2[k] = dict[key]; + } + + // todo support kwargs and tupleargs + var allconstructors = attribute.GetConstructors(); + foreach (var constructor in allconstructors) + { + var parameters = constructor.GetParameters(); + List

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