PyInt_FromInt32() статический приватный Метод

static private PyInt_FromInt32 ( int value ) : IntPtr
value int
Результат IntPtr
Пример #1
0
        //====================================================================
        // helper methods for raising warnings
        //====================================================================

        /// <summary>
        /// Alias for Python's warnings.warn() function.
        /// </summary>
        public static void warn(string message, IntPtr exception, int stacklevel)
        {
            if (exception == IntPtr.Zero ||
                (Runtime.PyObject_IsSubclass(exception, Exceptions.Warning) != 1))
            {
                Exceptions.RaiseTypeError("Invalid exception");
            }

            Runtime.XIncref(warnings_module);
            IntPtr warn = Runtime.PyObject_GetAttrString(warnings_module, "warn");

            Runtime.XDecref(warnings_module);
            Exceptions.ErrorCheck(warn);

            IntPtr args = Runtime.PyTuple_New(3);
            IntPtr msg  = Runtime.PyString_FromString(message);

            Runtime.XIncref(exception); // PyTuple_SetItem steals a reference
            IntPtr level = Runtime.PyInt_FromInt32(stacklevel);

            Runtime.PyTuple_SetItem(args, 0, msg);
            Runtime.PyTuple_SetItem(args, 1, exception);
            Runtime.PyTuple_SetItem(args, 2, level);

            IntPtr result = Runtime.PyObject_CallObject(warn, args);

            Exceptions.ErrorCheck(result);

            Runtime.XDecref(warn);
            Runtime.XDecref(result);
            Runtime.XDecref(args);
        }
Пример #2
0
        private static IntPtr FromInt(int value)
        {
            IntPtr val = Runtime.PyInt_FromInt32(value);

            PythonException.ThrowIfIsNull(val);
            return(val);
        }
Пример #3
0
 /// <summary>
 /// PyInt Constructor
 /// </summary>
 ///
 /// <remarks>
 /// Creates a new Python int from an int32 value.
 /// </remarks>
 public PyInt(int value) : base()
 {
     obj = Runtime.PyInt_FromInt32(value);
     if (obj == IntPtr.Zero)
     {
         throw new PythonException();
     }
 }
Пример #4
0
        //====================================================================
        // helper methods for raising warnings
        //====================================================================

        /// <summary>
        /// Alias for Python's warnings.warn() function.
        /// </summary>
        public static void warn(string message, BorrowedReference exception, int stacklevel)
        {
            if (exception == null ||
                (Runtime.PyObject_IsSubclass(exception, Exceptions.Warning) != 1))
            {
                Exceptions.RaiseTypeError("Invalid exception");
            }

            using var warn = Runtime.PyObject_GetAttrString(warnings_module.obj, "warn");
            Exceptions.ErrorCheck(warn.Borrow());

            using var argsTemp = Runtime.PyTuple_New(3);
            BorrowedReference args = argsTemp.BorrowOrThrow();

            using var msg = Runtime.PyString_FromString(message);
            Runtime.PyTuple_SetItem(args, 0, msg.StealOrThrow());
            Runtime.PyTuple_SetItem(args, 1, exception);

            using var level = Runtime.PyInt_FromInt32(stacklevel);
            Runtime.PyTuple_SetItem(args, 2, level.StealOrThrow());

            using var result = Runtime.PyObject_CallObject(warn.Borrow(), args);
            Exceptions.ErrorCheck(result.Borrow());
        }
Пример #5
0
        internal static IntPtr ToPython(object value, Type type)
        {
            if (value is PyObject)
            {
                IntPtr handle = ((PyObject)value).Handle;
                Runtime.XIncref(handle);
                return(handle);
            }
            IntPtr result = IntPtr.Zero;

            // Null always converts to None in Python.

            if (value == null)
            {
                result = Runtime.PyNone;
                Runtime.XIncref(result);
                return(result);
            }

            if (value is IList && value.GetType().IsGenericType)
            {
                using (var resultlist = new PyList())
                {
                    foreach (object o in (IEnumerable)value)
                    {
                        using (var p = new PyObject(ToPython(o, o?.GetType())))
                        {
                            resultlist.Append(p);
                        }
                    }
                    Runtime.XIncref(resultlist.Handle);
                    return(resultlist.Handle);
                }
            }

            // it the type is a python subclass of a managed type then return the
            // underlying python object rather than construct a new wrapper object.
            var pyderived = value as IPythonDerivedType;

            if (null != pyderived)
            {
#if NETSTANDARD || NETCOREAPP
                return(ClassDerivedObject.ToPython(pyderived));
#else
                // if object is remote don't do this
                if (!System.Runtime.Remoting.RemotingServices.IsTransparentProxy(pyderived))
                {
                    return(ClassDerivedObject.ToPython(pyderived));
                }
#endif
            }

            // hmm - from Python, we almost never care what the declared
            // type is. we'd rather have the object bound to the actual
            // implementing class.

            type = value.GetType();

            TypeCode tc = Type.GetTypeCode(type);

            switch (tc)
            {
            case TypeCode.Object:
                return(CLRObject.GetInstHandle(value, type));

            case TypeCode.String:
                return(Runtime.PyUnicode_FromString((string)value));

            case TypeCode.Int32:
                return(Runtime.PyInt_FromInt32((int)value));

            case TypeCode.Boolean:
                if ((bool)value)
                {
                    Runtime.XIncref(Runtime.PyTrue);
                    return(Runtime.PyTrue);
                }
                Runtime.XIncref(Runtime.PyFalse);
                return(Runtime.PyFalse);

            case TypeCode.Byte:
                return(Runtime.PyInt_FromInt32((int)((byte)value)));

            case TypeCode.Char:
                return(Runtime.Interop.PyUnicode_FromOrdinal((int)((char)value)));

            case TypeCode.Int16:
                return(Runtime.PyInt_FromInt32((int)((short)value)));

            case TypeCode.Int64:
                return(Runtime.Interop.PyLong_FromLongLong((long)value));

            case TypeCode.Single:
                // return Runtime.PyFloat_FromDouble((double)((float)value));
                string ss = ((float)value).ToString(nfi);
                IntPtr ps = Runtime.PyString_FromString(ss);
                IntPtr op = Runtime.Interop.PyFloat_FromString(ps, IntPtr.Zero);
                Runtime.XDecref(ps);
                return(op);

            case TypeCode.Double:
                return(Runtime.Interop.PyFloat_FromDouble((double)value));

            case TypeCode.SByte:
                return(Runtime.PyInt_FromInt32((int)((sbyte)value)));

            case TypeCode.UInt16:
                return(Runtime.PyInt_FromInt32((int)((ushort)value)));

            case TypeCode.UInt32:
                return(Runtime.Interop.PyLong_FromUnsignedLong((uint)value));

            case TypeCode.UInt64:
                return(Runtime.Interop.PyLong_FromUnsignedLongLong((ulong)value));

            default:
                if (value is IEnumerable)
                {
                    using (var resultlist = new PyList())
                    {
                        foreach (object o in (IEnumerable)value)
                        {
                            using (var p = new PyObject(ToPython(o, o?.GetType())))
                            {
                                resultlist.Append(p);
                            }
                        }
                        Runtime.XIncref(resultlist.Handle);
                        return(resultlist.Handle);
                    }
                }
                result = CLRObject.GetInstHandle(value, type);
                return(result);
            }
        }
Пример #6
0
        internal static IntPtr ToPython(object value, Type type)
        {
            if (value is PyObject)
            {
                IntPtr handle = ((PyObject)value).Handle;
                Runtime.XIncref(handle);
                return(handle);
            }
            IntPtr result = IntPtr.Zero;

            // Null always converts to None in Python.

            if (value == null)
            {
                result = Runtime.PyNone;
                Runtime.XIncref(result);
                return(result);
            }

            if (Type.GetTypeCode(type) == TypeCode.Object && value.GetType() != typeof(object))
            {
                var encoded = PyObjectConversions.TryEncode(value, type);
                if (encoded != null)
                {
                    result = encoded.Handle;
                    Runtime.XIncref(result);
                    return(result);
                }
            }

            if (value is IList && !(value is INotifyPropertyChanged) && value.GetType().IsGenericType)
            {
                using (var resultlist = new PyList())
                {
                    foreach (object o in (IEnumerable)value)
                    {
                        using (var p = new PyObject(ToPython(o, o?.GetType())))
                        {
                            resultlist.Append(p);
                        }
                    }
                    Runtime.XIncref(resultlist.Handle);
                    return(resultlist.Handle);
                }
            }

            if (type.IsInterface)
            {
                var ifaceObj = (InterfaceObject)ClassManager.GetClass(type);
                return(ifaceObj.WrapObject(value));
            }

            // We need to special case interface array handling to ensure we
            // produce the correct type. Value may be an array of some concrete
            // type (FooImpl[]), but we want access to go via the interface type
            // (IFoo[]).
            if (type.IsArray && type.GetElementType().IsInterface)
            {
                return(CLRObject.GetInstHandle(value, type));
            }

            // it the type is a python subclass of a managed type then return the
            // underlying python object rather than construct a new wrapper object.
            var pyderived = value as IPythonDerivedType;

            if (null != pyderived)
            {
                if (!IsTransparentProxy(pyderived))
                {
                    return(ClassDerivedObject.ToPython(pyderived));
                }
            }

            // hmm - from Python, we almost never care what the declared
            // type is. we'd rather have the object bound to the actual
            // implementing class.

            type = value.GetType();

            TypeCode tc = Type.GetTypeCode(type);

            switch (tc)
            {
            case TypeCode.Object:
                return(CLRObject.GetInstHandle(value, type));

            case TypeCode.String:
                return(Runtime.PyUnicode_FromString((string)value));

            case TypeCode.Int32:
                return(Runtime.PyInt_FromInt32((int)value));

            case TypeCode.Boolean:
                if ((bool)value)
                {
                    Runtime.XIncref(Runtime.PyTrue);
                    return(Runtime.PyTrue);
                }
                Runtime.XIncref(Runtime.PyFalse);
                return(Runtime.PyFalse);

            case TypeCode.Byte:
                return(Runtime.PyInt_FromInt32((int)((byte)value)));

            case TypeCode.Char:
                return(Runtime.PyUnicode_FromOrdinal((int)((char)value)));

            case TypeCode.Int16:
                return(Runtime.PyInt_FromInt32((int)((short)value)));

            case TypeCode.Int64:
                return(Runtime.PyLong_FromLongLong((long)value));

            case TypeCode.Single:
                // return Runtime.PyFloat_FromDouble((double)((float)value));
                string ss = ((float)value).ToString(nfi);
                IntPtr ps = Runtime.PyString_FromString(ss);
                IntPtr op = Runtime.PyFloat_FromString(ps, IntPtr.Zero);
                Runtime.XDecref(ps);
                return(op);

            case TypeCode.Double:
                return(Runtime.PyFloat_FromDouble((double)value));

            case TypeCode.SByte:
                return(Runtime.PyInt_FromInt32((int)((sbyte)value)));

            case TypeCode.UInt16:
                return(Runtime.PyInt_FromInt32((int)((ushort)value)));

            case TypeCode.UInt32:
                return(Runtime.PyLong_FromUnsignedLong((uint)value));

            case TypeCode.UInt64:
                return(Runtime.PyLong_FromUnsignedLongLong((ulong)value));

            default:
                if (value is IEnumerable)
                {
                    using (var resultlist = new PyList())
                    {
                        foreach (object o in (IEnumerable)value)
                        {
                            using (var p = new PyObject(ToPython(o, o?.GetType())))
                            {
                                resultlist.Append(p);
                            }
                        }
                        Runtime.XIncref(resultlist.Handle);
                        return(resultlist.Handle);
                    }
                }
                result = CLRObject.GetInstHandle(value, type);
                return(result);
            }
        }
Пример #7
0
 /// <summary>
 /// PyInt Constructor
 /// </summary>
 /// <remarks>
 /// Creates a new Python int from an int32 value.
 /// </remarks>
 public PyInt(int value)
 {
     obj = Runtime.PyInt_FromInt32(value);
     Runtime.CheckExceptionOccurred();
 }
Пример #8
0
        internal static IntPtr ToPython(Object value, Type type)
        {
            IntPtr result = IntPtr.Zero;

            // Null always converts to None in Python.

            if (value == null)
            {
                result = Runtime.PyNone;
                Runtime.Incref(result);
                return(result);
            }

            // it the type is a python subclass of a managed type then return the
            // underying python object rather than construct a new wrapper object.
            IPythonDerivedType pyderived = value as IPythonDerivedType;

            if (null != pyderived)
            {
                return(ClassDerivedObject.ToPython(pyderived));
            }

            // hmm - from Python, we almost never care what the declared
            // type is. we'd rather have the object bound to the actual
            // implementing class.

            type = value.GetType();

            TypeCode tc = Type.GetTypeCode(type);

            switch (tc)
            {
            case TypeCode.Object:
                result = CLRObject.GetInstHandle(value, type);

                // XXX - hack to make sure we convert new-style class based
                // managed exception instances to wrappers ;(
                if (Runtime.wrap_exceptions)
                {
                    Exception e = value as Exception;
                    if (e != null)
                    {
                        return(Exceptions.GetExceptionInstanceWrapper(result));
                    }
                }

                return(result);

            case TypeCode.String:
                return(Runtime.PyUnicode_FromString((string)value));

            case TypeCode.Int32:
                return(Runtime.PyInt_FromInt32((int)value));

            case TypeCode.Boolean:
                if ((bool)value)
                {
                    Runtime.Incref(Runtime.PyTrue);
                    return(Runtime.PyTrue);
                }
                Runtime.Incref(Runtime.PyFalse);
                return(Runtime.PyFalse);

            case TypeCode.Byte:
                return(Runtime.PyInt_FromInt32((int)((byte)value)));

            case TypeCode.Char:
                return(Runtime.PyUnicode_FromOrdinal((int)((char)value)));

            case TypeCode.Int16:
                return(Runtime.PyInt_FromInt32((int)((short)value)));

            case TypeCode.Int64:
                return(Runtime.PyLong_FromLongLong((long)value));

            case TypeCode.Single:
                // return Runtime.PyFloat_FromDouble((double)((float)value));
                string ss = ((float)value).ToString(nfi);
                IntPtr ps = Runtime.PyString_FromString(ss);
                IntPtr op = Runtime.PyFloat_FromString(ps, IntPtr.Zero);
                Runtime.Decref(ps);
                return(op);

            case TypeCode.Double:
                return(Runtime.PyFloat_FromDouble((double)value));

            case TypeCode.SByte:
                return(Runtime.PyInt_FromInt32((int)((sbyte)value)));

            case TypeCode.UInt16:
                return(Runtime.PyInt_FromInt32((int)((ushort)value)));

            case TypeCode.UInt32:
                return(Runtime.PyLong_FromUnsignedLong((uint)value));

            case TypeCode.UInt64:
                return(Runtime.PyLong_FromUnsignedLongLong((ulong)value));

            default:
                if (value is IEnumerable)
                {
                    using (var resultlist = new PyList())
                    {
                        foreach (object o in (IEnumerable)value)
                        {
                            using (var p = new PyObject(ToPython(o, o.GetType())))
                                resultlist.Append(p);
                        }
                        Runtime.Incref(resultlist.Handle);
                        return(resultlist.Handle);
                    }
                }
                result = CLRObject.GetInstHandle(value, type);
                return(result);
            }
        }
Пример #9
0
        internal static IntPtr ToPython(object value, Type type)
        {
            if (value is PyObject)
            {
                IntPtr handle = ((PyObject)value).Handle;
                Runtime.XIncref(handle);
                return(handle);
            }
            IntPtr result = IntPtr.Zero;

            // Null always converts to None in Python.

            if (value == null)
            {
                result = Runtime.PyNone;
                Runtime.XIncref(result);
                return(result);
            }

            if (value is IList && value.GetType().IsGenericType)
            {
                using (var resultlist = new PyList())
                {
                    foreach (object o in (IEnumerable)value)
                    {
                        using (var p = new PyObject(ToPython(o, o?.GetType())))
                        {
                            resultlist.Append(p);
                        }
                    }
                    Runtime.XIncref(resultlist.Handle);
                    return(resultlist.Handle);
                }
            }

            // it the type is a python subclass of a managed type then return the
            // underlying python object rather than construct a new wrapper object.
            var pyderived = value as IPythonDerivedType;

            if (null != pyderived)
            {
                return(ClassDerivedObject.ToPython(pyderived));
            }

            // hmm - from Python, we almost never care what the declared
            // type is. we'd rather have the object bound to the actual
            // implementing class.

            type = value.GetType();

            TypeCode tc = Type.GetTypeCode(type);

            switch (tc)
            {
            case TypeCode.Object:
                if (value is TimeSpan)
                {
                    var timespan = (TimeSpan)value;

                    IntPtr timeSpanArgs = Runtime.PyTuple_New(1);
                    Runtime.PyTuple_SetItem(timeSpanArgs, 0, Runtime.PyFloat_FromDouble(timespan.TotalDays));
                    return(Runtime.PyObject_CallObject(timeSpanCtor, timeSpanArgs));
                }
                return(CLRObject.GetInstHandle(value, type));

            case TypeCode.String:
                return(Runtime.PyUnicode_FromString((string)value));

            case TypeCode.Int32:
                return(Runtime.PyInt_FromInt32((int)value));

            case TypeCode.Boolean:
                if ((bool)value)
                {
                    Runtime.XIncref(Runtime.PyTrue);
                    return(Runtime.PyTrue);
                }
                Runtime.XIncref(Runtime.PyFalse);
                return(Runtime.PyFalse);

            case TypeCode.Byte:
                return(Runtime.PyInt_FromInt32((int)((byte)value)));

            case TypeCode.Char:
                return(Runtime.PyUnicode_FromOrdinal((int)((char)value)));

            case TypeCode.Int16:
                return(Runtime.PyInt_FromInt32((int)((short)value)));

            case TypeCode.Int64:
                return(Runtime.PyLong_FromLongLong((long)value));

            case TypeCode.Single:
                // return Runtime.PyFloat_FromDouble((double)((float)value));
                string ss = ((float)value).ToString(nfi);
                IntPtr ps = Runtime.PyString_FromString(ss);
                IntPtr op = Runtime.PyFloat_FromString(ps, IntPtr.Zero);
                Runtime.XDecref(ps);
                return(op);

            case TypeCode.Double:
                return(Runtime.PyFloat_FromDouble((double)value));

            case TypeCode.SByte:
                return(Runtime.PyInt_FromInt32((int)((sbyte)value)));

            case TypeCode.UInt16:
                return(Runtime.PyInt_FromInt32((int)((ushort)value)));

            case TypeCode.UInt32:
                return(Runtime.PyLong_FromUnsignedLong((uint)value));

            case TypeCode.UInt64:
                return(Runtime.PyLong_FromUnsignedLongLong((ulong)value));

            case TypeCode.Decimal:
                string d2s         = ((decimal)value).ToString(nfi);
                IntPtr d2p         = Runtime.PyString_FromString(d2s);
                IntPtr decimalArgs = Runtime.PyTuple_New(1);
                Runtime.PyTuple_SetItem(decimalArgs, 0, d2p);

                return(Runtime.PyObject_CallObject(decimalCtor, decimalArgs));

            case TypeCode.DateTime:
                var datetime = (DateTime)value;

                IntPtr dateTimeArgs = Runtime.PyTuple_New(8);
                Runtime.PyTuple_SetItem(dateTimeArgs, 0, Runtime.PyInt_FromInt32(datetime.Year));
                Runtime.PyTuple_SetItem(dateTimeArgs, 1, Runtime.PyInt_FromInt32(datetime.Month));
                Runtime.PyTuple_SetItem(dateTimeArgs, 2, Runtime.PyInt_FromInt32(datetime.Day));
                Runtime.PyTuple_SetItem(dateTimeArgs, 3, Runtime.PyInt_FromInt32(datetime.Hour));
                Runtime.PyTuple_SetItem(dateTimeArgs, 4, Runtime.PyInt_FromInt32(datetime.Minute));
                Runtime.PyTuple_SetItem(dateTimeArgs, 5, Runtime.PyInt_FromInt32(datetime.Second));
                Runtime.PyTuple_SetItem(dateTimeArgs, 6, Runtime.PyInt_FromInt32(1000 * datetime.Millisecond));
                Runtime.PyTuple_SetItem(dateTimeArgs, 7, TzInfo(datetime.Kind));

                return(Runtime.PyObject_CallObject(dateTimeCtor, dateTimeArgs));

            default:
                if (value is IEnumerable)
                {
                    using (var resultlist = new PyList())
                    {
                        foreach (object o in (IEnumerable)value)
                        {
                            using (var p = new PyObject(ToPython(o, o?.GetType())))
                            {
                                resultlist.Append(p);
                            }
                        }
                        Runtime.XIncref(resultlist.Handle);
                        return(resultlist.Handle);
                    }
                }
                result = CLRObject.GetInstHandle(value, type);
                return(result);
            }
        }
Пример #10
0
        internal static IntPtr ToPython(object value, Type type)
        {
            if (value is PyObject)
            {
                IntPtr handle = ((PyObject)value).Handle;
                Runtime.XIncref(handle);
                return(handle);
            }
            IntPtr result = IntPtr.Zero;

            // Null always converts to None in Python.

            if (value == null)
            {
                result = Runtime.PyNone;
                Runtime.XIncref(result);
                return(result);
            }

            if (Type.GetTypeCode(type) == TypeCode.Object && value.GetType() != typeof(object))
            {
                var encoded = PyObjectConversions.TryEncode(value, type);
                if (encoded != null)
                {
                    result = encoded.Handle;
                    Runtime.XIncref(result);
                    return(result);
                }
            }

            if (value is IList && !(value is INotifyPropertyChanged) && value.GetType().IsGenericType)
            {
                using (var resultlist = new PyList())
                {
                    foreach (object o in (IEnumerable)value)
                    {
                        using (var p = new PyObject(ToPython(o, o?.GetType())))
                        {
                            resultlist.Append(p);
                        }
                    }
                    Runtime.XIncref(resultlist.Handle);
                    return(resultlist.Handle);
                }
            }

            // it the type is a python subclass of a managed type then return the
            // underlying python object rather than construct a new wrapper object.
            var pyderived = value as IPythonDerivedType;

            if (null != pyderived)
            {
                if (!IsTransparentProxy(pyderived))
                {
                    return(ClassDerivedObject.ToPython(pyderived));
                }
            }

            // hmm - from Python, we almost never care what the declared
            // type is. we'd rather have the object bound to the actual
            // implementing class.

            type = value.GetType();

            TypeCode tc = Type.GetTypeCode(type);

            switch (tc)
            {
            case TypeCode.Object:
                if (value is TimeSpan)
                {
                    var timespan = (TimeSpan)value;

                    IntPtr timeSpanArgs = Runtime.PyTuple_New(1);
                    Runtime.PyTuple_SetItem(timeSpanArgs, 0, Runtime.PyFloat_FromDouble(timespan.TotalDays));
                    var returnTimeSpan = Runtime.PyObject_CallObject(timeSpanCtor, timeSpanArgs);
                    // clean up
                    Runtime.XDecref(timeSpanArgs);
                    return(returnTimeSpan);
                }
                return(CLRObject.GetInstHandle(value, type));

            case TypeCode.String:
                return(Runtime.PyUnicode_FromString((string)value));

            case TypeCode.Int32:
                return(Runtime.PyInt_FromInt32((int)value));

            case TypeCode.Boolean:
                if ((bool)value)
                {
                    Runtime.XIncref(Runtime.PyTrue);
                    return(Runtime.PyTrue);
                }
                Runtime.XIncref(Runtime.PyFalse);
                return(Runtime.PyFalse);

            case TypeCode.Byte:
                return(Runtime.PyInt_FromInt32((int)((byte)value)));

            case TypeCode.Char:
                return(Runtime.PyUnicode_FromOrdinal((int)((char)value)));

            case TypeCode.Int16:
                return(Runtime.PyInt_FromInt32((int)((short)value)));

            case TypeCode.Int64:
                return(Runtime.PyLong_FromLongLong((long)value));

            case TypeCode.Single:
                // return Runtime.PyFloat_FromDouble((double)((float)value));
                string       ss = ((float)value).ToString(nfi);
                IntPtr       ps = Runtime.PyString_FromString(ss);
                NewReference op = Runtime.PyFloat_FromString(new BorrowedReference(ps));;
                Runtime.XDecref(ps);
                return(op.DangerousMoveToPointerOrNull());

            case TypeCode.Double:
                return(Runtime.PyFloat_FromDouble((double)value));

            case TypeCode.SByte:
                return(Runtime.PyInt_FromInt32((int)((sbyte)value)));

            case TypeCode.UInt16:
                return(Runtime.PyInt_FromInt32((int)((ushort)value)));

            case TypeCode.UInt32:
                return(Runtime.PyLong_FromUnsignedLong((uint)value));

            case TypeCode.UInt64:
                return(Runtime.PyLong_FromUnsignedLongLong((ulong)value));

            case TypeCode.Decimal:
                // C# decimal to python decimal has a big impact on performance
                // so we will use C# double and python float
                return(Runtime.PyFloat_FromDouble(decimal.ToDouble((decimal)value)));

            case TypeCode.DateTime:
                var datetime = (DateTime)value;

                var size = datetime.Kind == DateTimeKind.Unspecified ? 7 : 8;

                IntPtr dateTimeArgs = Runtime.PyTuple_New(size);
                Runtime.PyTuple_SetItem(dateTimeArgs, 0, Runtime.PyInt_FromInt32(datetime.Year));
                Runtime.PyTuple_SetItem(dateTimeArgs, 1, Runtime.PyInt_FromInt32(datetime.Month));
                Runtime.PyTuple_SetItem(dateTimeArgs, 2, Runtime.PyInt_FromInt32(datetime.Day));
                Runtime.PyTuple_SetItem(dateTimeArgs, 3, Runtime.PyInt_FromInt32(datetime.Hour));
                Runtime.PyTuple_SetItem(dateTimeArgs, 4, Runtime.PyInt_FromInt32(datetime.Minute));
                Runtime.PyTuple_SetItem(dateTimeArgs, 5, Runtime.PyInt_FromInt32(datetime.Second));

                // datetime.datetime 6th argument represents micro seconds
                var totalSeconds = datetime.TimeOfDay.TotalSeconds;
                var microSeconds = Convert.ToInt32((totalSeconds - Math.Truncate(totalSeconds)) * 1000000);
                if (microSeconds == 1000000)
                {
                    microSeconds = 999999;
                }
                Runtime.PyTuple_SetItem(dateTimeArgs, 6, Runtime.PyInt_FromInt32(microSeconds));

                if (size == 8)
                {
                    Runtime.PyTuple_SetItem(dateTimeArgs, 7, TzInfo(datetime.Kind));
                }

                var returnDateTime = Runtime.PyObject_CallObject(dateTimeCtor, dateTimeArgs);
                // clean up
                Runtime.XDecref(dateTimeArgs);
                return(returnDateTime);


            default:
                if (value is IEnumerable)
                {
                    using (var resultlist = new PyList())
                    {
                        foreach (object o in (IEnumerable)value)
                        {
                            using (var p = new PyObject(ToPython(o, o?.GetType())))
                            {
                                resultlist.Append(p);
                            }
                        }
                        Runtime.XIncref(resultlist.Handle);
                        return(resultlist.Handle);
                    }
                }
                result = CLRObject.GetInstHandle(value, type);
                return(result);
            }
        }
Пример #11
0
        internal static NewReference ToPython(object?value, Type type)
        {
            if (value is PyObject pyObj)
            {
                return(new NewReference(pyObj));
            }

            // Null always converts to None in Python.
            if (value == null)
            {
                return(new NewReference(Runtime.PyNone));
            }

            if (EncodableByUser(type, value))
            {
                var encoded = PyObjectConversions.TryEncode(value, type);
                if (encoded != null)
                {
                    return(new NewReference(encoded));
                }
            }

            if (type.IsInterface)
            {
                var ifaceObj = (InterfaceObject)ClassManager.GetClassImpl(type);
                return(ifaceObj.TryWrapObject(value));
            }

            if (type.IsArray || type.IsEnum)
            {
                return(CLRObject.GetReference(value, type));
            }

            // it the type is a python subclass of a managed type then return the
            // underlying python object rather than construct a new wrapper object.
            var pyderived = value as IPythonDerivedType;

            if (null != pyderived)
            {
                if (!IsTransparentProxy(pyderived))
                {
                    return(ClassDerivedObject.ToPython(pyderived));
                }
            }

            // ModuleObjects are created in a way that their wrapping them as
            // a CLRObject fails, the ClassObject has no tpHandle. Return the
            // pyHandle as is, do not convert.
            if (value is ModuleObject modobj)
            {
                throw new NotImplementedException();
            }

            // hmm - from Python, we almost never care what the declared
            // type is. we'd rather have the object bound to the actual
            // implementing class.

            type = value.GetType();

            if (type.IsEnum)
            {
                return(CLRObject.GetReference(value, type));
            }

            TypeCode tc = Type.GetTypeCode(type);

            switch (tc)
            {
            case TypeCode.Object:
                return(CLRObject.GetReference(value, type));

            case TypeCode.String:
                return(Runtime.PyString_FromString((string)value));

            case TypeCode.Int32:
                return(Runtime.PyInt_FromInt32((int)value));

            case TypeCode.Boolean:
                if ((bool)value)
                {
                    return(new NewReference(Runtime.PyTrue));
                }
                return(new NewReference(Runtime.PyFalse));

            case TypeCode.Byte:
                return(Runtime.PyInt_FromInt32((byte)value));

            case TypeCode.Char:
                return(Runtime.PyUnicode_FromOrdinal((int)((char)value)));

            case TypeCode.Int16:
                return(Runtime.PyInt_FromInt32((short)value));

            case TypeCode.Int64:
                return(Runtime.PyLong_FromLongLong((long)value));

            case TypeCode.Single:
                return(Runtime.PyFloat_FromDouble((float)value));

            case TypeCode.Double:
                return(Runtime.PyFloat_FromDouble((double)value));

            case TypeCode.SByte:
                return(Runtime.PyInt_FromInt32((sbyte)value));

            case TypeCode.UInt16:
                return(Runtime.PyInt_FromInt32((ushort)value));

            case TypeCode.UInt32:
                return(Runtime.PyLong_FromUnsignedLongLong((uint)value));

            case TypeCode.UInt64:
                return(Runtime.PyLong_FromUnsignedLongLong((ulong)value));

            default:
                return(CLRObject.GetReference(value, type));
            }
        }
Пример #12
0
 /// <summary>
 /// PyInt Constructor
 /// </summary>
 /// <remarks>
 /// Creates a new Python int from an int32 value.
 /// </remarks>
 public PyInt(int value)
 {
     obj = Runtime.PyInt_FromInt32(value);
     PythonException.ThrowIfIsNull(obj);
 }