/// <summary>
/// Return a dict that maps slot names to slot values, but only include slots that have been assigned to.
/// Looks up slots in base types as well as the current type.
///
/// Sort-of Python equivalent (doesn't look up base slots, while the real code does):
/// return dict([(slot, getattr(self, slot)) for slot in type(self).__slots__ if hasattr(self, slot)])
///
/// Return null if the object has no __slots__, or empty dict if it has __slots__ but none are initialized.
/// </summary>
private static PythonDictionary GetInitializedSlotValues(object obj)
{
PythonDictionary initializedSlotValues = new PythonDictionary();
IList <PythonType> mro = DynamicHelpers.GetPythonType(obj).ResolutionOrder;
object slots;
object slotValue;
foreach (object type in mro)
{
if (PythonOps.TryGetBoundAttr(type, "__slots__", out slots))
{
List <string> slotNames = PythonType.SlotsToList(slots);
foreach (string slotName in slotNames)
{
if (slotName == "__dict__")
{
continue;
}
// don't reassign same-named slots from types earlier in the MRO
if (initializedSlotValues.__contains__(slotName))
{
continue;
}
if (PythonOps.TryGetBoundAttr(obj, slotName, out slotValue))
{
initializedSlotValues[slotName] = slotValue;
}
}
}
}
if (initializedSlotValues.Count == 0)
{
return(null);
}
return(initializedSlotValues);
}
public static object?__reduce_ex__(CodeContext /*!*/ context, object self, object protocol)
{
object objectReduce = PythonOps.GetBoundAttr(context, DynamicHelpers.GetPythonTypeFromType(typeof(object)), "__reduce__");
if (PythonOps.TryGetBoundAttr(context, DynamicHelpers.GetPythonType(self), "__reduce__", out object?myReduce))
{
if (!PythonOps.IsRetBool(myReduce, objectReduce))
{
// A derived class overrode __reduce__ but not __reduce_ex__, so call
// specialized __reduce__ instead of generic __reduce_ex__.
// (see the "The __reduce_ex__ API" section of PEP 307)
return(PythonOps.CallWithContext(context, myReduce, self) !);
}
}
if (context.LanguageContext.ConvertToInt32(protocol) < 2)
{
return(ReduceProtocol0(context, self));
}
else
{
return(ReduceProtocol2(context, self));
}
}
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);
}
/// <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
PythonTuple newArgs = PythonOps.CallWithContext(context, getNewArgsCallable, self) as PythonTuple;
if (newArgs == null)
{
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;
IPythonObject ipo = self as IPythonObject;
if (ipo != null)
{
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 {
private static object FastNew(CodeContext /*!*/ context, object o)
{
Extensible <BigInteger> el;
if (o is string)
{
return(__new__(null, (string)o, 10));
}
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, 10));
}
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.GetOldName(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.GetOldName(result));
}
}
if (o is OldInstance)
{
throw PythonOps.AttributeError("{0} instance has no attribute '__trunc__'", PythonTypeOps.GetOldName((OldInstance)o));
}
else
{
throw PythonOps.TypeError("int() argument must be a string or a number, not '{0}'", PythonTypeOps.GetName(o));
}
}
public override bool ShouldSerializeValue(object component)
{
object o;
return(PythonOps.TryGetBoundAttr(component, _name, out o));
}
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 {