Exemple #1
0
        private static object FastNew(CodeContext /*!*/ context, object o, int @base = 10)
        {
            Extensible <BigInteger> el;

            if (o is string)
            {
                return(__new__(null, (string)o, @base));
            }
            if (o is double)
            {
                return(DoubleOps.__int__((double)o));
            }
            if (o is int)
            {
                return(o);
            }
            if (o is bool)
            {
                return(((bool)o) ? 1 : 0);
            }
            if (o is BigInteger)
            {
                int res;
                if (((BigInteger)o).AsInt32(out res))
                {
                    return(ScriptingRuntimeHelpers.Int32ToObject(res));
                }
                return(o);
            }

            if ((el = o as Extensible <BigInteger>) != null)
            {
                int res;
                if (el.Value.AsInt32(out res))
                {
                    return(ScriptingRuntimeHelpers.Int32ToObject(res));
                }
                return(el.Value);
            }

            if (o is float)
            {
                return(DoubleOps.__int__((double)(float)o));
            }

            if (o is Complex)
            {
                throw PythonOps.TypeError("can't convert complex to int; use int(abs(z))");
            }

            if (o is Int64)
            {
                Int64 val = (Int64)o;
                if (Int32.MinValue <= val && val <= Int32.MaxValue)
                {
                    return((Int32)val);
                }
                else
                {
                    return((BigInteger)val);
                }
            }
            else if (o is UInt32)
            {
                UInt32 val = (UInt32)o;
                if (val <= Int32.MaxValue)
                {
                    return((Int32)val);
                }
                else
                {
                    return((BigInteger)val);
                }
            }
            else if (o is UInt64)
            {
                UInt64 val = (UInt64)o;
                if (val <= Int32.MaxValue)
                {
                    return((Int32)val);
                }
                else
                {
                    return((BigInteger)val);
                }
            }
            else if (o is Decimal)
            {
                Decimal val = (Decimal)o;
                if (Int32.MinValue <= val && val <= Int32.MaxValue)
                {
                    return((Int32)val);
                }
                else
                {
                    return((BigInteger)val);
                }
            }
            else if (o is Enum)
            {
                return(((IConvertible)o).ToInt32(null));
            }

            Extensible <string> es = o as Extensible <string>;

            if (es != null)
            {
                // __int__ takes precedence, call it if it's available...
                object value;
                if (PythonTypeOps.TryInvokeUnaryOperator(DefaultContext.Default, es, "__int__", out value))
                {
                    return(value);
                }

                // otherwise call __new__ on the string value
                return(__new__(null, es.Value, @base));
            }

            object     result;
            int        intRes;
            BigInteger bigintRes;

            if (PythonTypeOps.TryInvokeUnaryOperator(context, o, "__int__", out result) &&
                !Object.ReferenceEquals(result, NotImplementedType.Value))
            {
                if (result is int || result is BigInteger ||
                    result is Extensible <int> || result is Extensible <BigInteger> )
                {
                    return(result);
                }
                else
                {
                    throw PythonOps.TypeError("__int__ returned non-Integral (type {0})", PythonTypeOps.GetName(result));
                }
            }
            else if (PythonOps.TryGetBoundAttr(context, o, "__trunc__", out result))
            {
                result = PythonOps.CallWithContext(context, result);
                if (result is int || result is BigInteger ||
                    result is Extensible <int> || result is Extensible <BigInteger> )
                {
                    return(result);
                }
                else if (Converter.TryConvertToInt32(result, out intRes))
                {
                    return(intRes);
                }
                else if (Converter.TryConvertToBigInteger(result, out bigintRes))
                {
                    return(bigintRes);
                }
                else
                {
                    throw PythonOps.TypeError("__trunc__ returned non-Integral (type {0})", PythonTypeOps.GetName(result));
                }
            }

            throw PythonOps.TypeError("int() argument must be a string or a number, not '{0}'", PythonTypeOps.GetName(o));
        }
Exemple #2
0
        /// <summary>
        /// Implements the default __reduce_ex__ method as specified by PEP 307 case 3 (new-style instance, protocol 2)
        /// </summary>
        private static PythonTuple ReduceProtocol2(CodeContext /*!*/ context, object self)
        {
            PythonType myType = DynamicHelpers.GetPythonType(self);

            object func, state, listIterator, dictIterator;

            object[] funcArgs;

            func = context.LanguageContext.NewObject;

            object getNewArgsCallable;

            if (PythonOps.TryGetBoundAttr(context, myType, "__getnewargs__", out getNewArgsCallable))
            {
                // TypeError will bubble up if __getnewargs__ isn't callable
                if (!(PythonOps.CallWithContext(context, getNewArgsCallable, self) is PythonTuple newArgs))
                {
                    throw PythonOps.TypeError("__getnewargs__ should return a tuple");
                }
                funcArgs    = new object[1 + newArgs.Count];
                funcArgs[0] = myType;
                for (int i = 0; i < newArgs.Count; i++)
                {
                    funcArgs[i + 1] = newArgs[i];
                }
            }
            else
            {
                funcArgs = new object[] { myType };
            }

            if (!PythonTypeOps.TryInvokeUnaryOperator(context,
                                                      self,
                                                      "__getstate__",
                                                      out state))
            {
                object dict;
                if (self is IPythonObject ipo)
                {
                    dict = ipo.Dict;
                }
                else if (!PythonOps.TryGetBoundAttr(context, self, "__dict__", out dict))
                {
                    dict = null;
                }

                PythonDictionary initializedSlotValues = GetInitializedSlotValues(self);
                if (initializedSlotValues != null && initializedSlotValues.Count == 0)
                {
                    initializedSlotValues = null;
                }

                if (dict == null && initializedSlotValues == null)
                {
                    state = null;
                }
                else if (dict != null && initializedSlotValues == null)
                {
                    state = dict;
                }
                else if (dict != null && initializedSlotValues != null)
                {
                    state = PythonTuple.MakeTuple(dict, initializedSlotValues);
                }
                else /*dict == null && initializedSlotValues != null*/ state {
Exemple #3
0
        public static object __new__(CodeContext context, PythonType cls, object x)
        {
            Extensible <string> es;

            if (x is string)
            {
                return(ReturnObject(context, cls, ParseBigIntegerSign((string)x, 10)));
            }
            else if ((es = x as Extensible <string>) != null)
            {
                object value;
                if (PythonTypeOps.TryInvokeUnaryOperator(context, x, "__long__", out value))
                {
                    return(ReturnObject(context, cls, (BigInteger)value));
                }

                return(ReturnObject(context, cls, ParseBigIntegerSign(es.Value, 10)));
            }
            if (x is double)
            {
                return(ReturnObject(context, cls, DoubleOps.__long__((double)x)));
            }
            if (x is int)
            {
                return(ReturnObject(context, cls, (BigInteger)(int)x));
            }
            if (x is BigInteger)
            {
                return(ReturnObject(context, cls, x));
            }

            if (x is Complex)
            {
                throw PythonOps.TypeError("can't convert complex to long; use long(abs(z))");
            }

            if (x is decimal)
            {
                return(ReturnObject(context, cls, (BigInteger)(decimal)x));
            }

            object     result;
            int        intRes;
            BigInteger bigintRes;

            if (PythonTypeOps.TryInvokeUnaryOperator(context, x, "__long__", out result) &&
                !Object.ReferenceEquals(result, NotImplementedType.Value))
            {
                if (result is int || result is BigInteger ||
                    result is Extensible <int> || result is Extensible <BigInteger> )
                {
                    return(ReturnObject(context, cls, result));
                }
                else
                {
                    throw PythonOps.TypeError("__long__ returned non-long (type {0})", PythonTypeOps.GetName(result));
                }
            }
            else if (PythonOps.TryGetBoundAttr(context, x, "__trunc__", out result))
            {
                result = PythonOps.CallWithContext(context, result);
                if (Converter.TryConvertToInt32(result, out intRes))
                {
                    return(ReturnObject(context, cls, (BigInteger)intRes));
                }
                else if (Converter.TryConvertToBigInteger(result, out bigintRes))
                {
                    return(ReturnObject(context, cls, bigintRes));
                }
                else
                {
                    throw PythonOps.TypeError("__trunc__ returned non-Integral (type {0})", PythonTypeOps.GetName(result));
                }
            }

            throw PythonOps.TypeError("long() argument must be a string or a number, not '{0}'",
                                      DynamicHelpers.GetPythonType(x).Name);
        }
Exemple #4
0
        private static PythonTuple ReduceProtocol2(CodeContext /*!*/ context, object self)
        {
            // builtin types which can't be pickled (due to tp_itemsize != 0)
            if (self is MemoryView)
            {
                throw PythonOps.TypeError("can't pickle memoryview objects");
            }

            PythonType myType = DynamicHelpers.GetPythonType(self);

            object?state;

            object?[] funcArgs;

            var copyreg = context.LanguageContext.GetCopyRegModule();
            var func    = PythonOps.GetBoundAttr(context, copyreg, "__newobj__");

            if (PythonOps.TryGetBoundAttr(context, myType, "__getnewargs__", out object?getNewArgsCallable))
            {
                // TypeError will bubble up if __getnewargs__ isn't callable
                if (!(PythonOps.CallWithContext(context, getNewArgsCallable, self) is PythonTuple newArgs))
                {
                    throw PythonOps.TypeError("__getnewargs__ should return a tuple");
                }
                funcArgs    = new object[1 + newArgs.Count];
                funcArgs[0] = myType;
                for (int i = 0; i < newArgs.Count; i++)
                {
                    funcArgs[i + 1] = newArgs[i];
                }
            }
            else
            {
                funcArgs = new object[] { myType };
            }

            if (!PythonTypeOps.TryInvokeUnaryOperator(context,
                                                      self,
                                                      "__getstate__",
                                                      out state))
            {
                object?dict;
                if (self is IPythonObject ipo)
                {
                    dict = ipo.Dict;
                }
                else if (!PythonOps.TryGetBoundAttr(context, self, "__dict__", out dict))
                {
                    dict = null;
                }

                PythonDictionary?initializedSlotValues = GetInitializedSlotValues(self);
                if (initializedSlotValues != null && initializedSlotValues.Count == 0)
                {
                    initializedSlotValues = null;
                }

                if (dict == null && initializedSlotValues == null)
                {
                    state = null;
                }
                else if (dict != null && initializedSlotValues == null)
                {
                    state = dict;
                }
                else if (dict != null && initializedSlotValues != null)
                {
                    state = PythonTuple.MakeTuple(dict, initializedSlotValues);
                }
                else /*dict == null && initializedSlotValues != null*/ state {