//===================================================================
// Return the clr python module (new reference)
//===================================================================
public static IntPtr GetCLRModule(IntPtr?fromList = null)
{
root.InitializePreload();
#if (PYTHON32 || PYTHON33 || PYTHON34 || PYTHON35)
// update the module dictionary with the contents of the root dictionary
root.LoadNames();
IntPtr py_mod_dict = Runtime.PyModule_GetDict(py_clr_module);
IntPtr clr_dict = Runtime._PyObject_GetDictPtr(root.pyHandle); // PyObject**
clr_dict = (IntPtr)Marshal.PtrToStructure(clr_dict, typeof(IntPtr));
Runtime.PyDict_Update(py_mod_dict, clr_dict);
// find any items from the fromlist and get them from the root if they're not
// aleady in the module dictionary
if (fromList != null && fromList != IntPtr.Zero)
{
if (Runtime.PyTuple_Check(fromList.GetValueOrDefault()))
{
Runtime.Incref(py_mod_dict);
using (PyDict mod_dict = new PyDict(py_mod_dict)) {
Runtime.Incref(fromList.GetValueOrDefault());
using (PyTuple from = new PyTuple(fromList.GetValueOrDefault())) {
foreach (PyObject item in from)
{
if (mod_dict.HasKey(item))
{
continue;
}
string s = item.AsManagedObject(typeof(string)) as string;
if (null == s)
{
continue;
}
ManagedType attr = root.GetAttribute(s, true);
if (null == attr)
{
continue;
}
Runtime.Incref(attr.pyHandle);
using (PyObject obj = new PyObject(attr.pyHandle)) {
mod_dict.SetItem(s, obj);
}
}
}
}
}
}
Runtime.Incref(py_clr_module);
return(py_clr_module);
#else
Runtime.Incref(root.pyHandle);
return(root.pyHandle);
#endif
}
/// <summary>
/// Return the clr python module (new reference)
/// </summary>
public static unsafe NewReference GetCLRModule(BorrowedReference fromList = default)
{
root.InitializePreload();
// update the module dictionary with the contents of the root dictionary
root.LoadNames();
BorrowedReference py_mod_dict = Runtime.PyModule_GetDict(ClrModuleReference);
using (var clr_dict = Runtime.PyObject_GenericGetDict(root.ObjectReference))
{
Runtime.PyDict_Update(py_mod_dict, clr_dict);
}
// find any items from the from list and get them from the root if they're not
// already in the module dictionary
if (fromList != null)
{
if (Runtime.PyTuple_Check(fromList))
{
using var mod_dict = new PyDict(py_mod_dict);
using var from = new PyTuple(fromList);
foreach (PyObject item in from)
{
if (mod_dict.HasKey(item))
{
continue;
}
var s = item.AsManagedObject(typeof(string)) as string;
if (s == null)
{
continue;
}
ManagedType attr = root.GetAttribute(s, true);
if (attr == null)
{
continue;
}
Runtime.XIncref(attr.pyHandle);
using (var obj = new PyObject(attr.pyHandle))
{
mod_dict.SetItem(s, obj);
}
}
}
}
Runtime.XIncref(py_clr_module);
return(NewReference.DangerousFromPointer(py_clr_module));
}
//===================================================================
// Return the clr python module (new reference)
//===================================================================
public static IntPtr GetCLRModule(IntPtr? fromList = null)
{
root.InitializePreload();
#if (PYTHON32 || PYTHON33 || PYTHON34 || PYTHON35)
// update the module dictionary with the contents of the root dictionary
root.LoadNames();
IntPtr py_mod_dict = Runtime.PyModule_GetDict(py_clr_module);
IntPtr clr_dict = Runtime._PyObject_GetDictPtr(root.pyHandle); // PyObject**
clr_dict = (IntPtr)Marshal.PtrToStructure(clr_dict, typeof(IntPtr));
Runtime.PyDict_Update(py_mod_dict, clr_dict);
// find any items from the fromlist and get them from the root if they're not
// aleady in the module dictionary
if (fromList != null && fromList != IntPtr.Zero) {
if (Runtime.PyTuple_Check(fromList.GetValueOrDefault()))
{
Runtime.XIncref(py_mod_dict);
using(PyDict mod_dict = new PyDict(py_mod_dict)) {
Runtime.XIncref(fromList.GetValueOrDefault());
using (PyTuple from = new PyTuple(fromList.GetValueOrDefault())) {
foreach (PyObject item in from) {
if (mod_dict.HasKey(item))
continue;
string s = item.AsManagedObject(typeof(string)) as string;
if (null == s)
continue;
ManagedType attr = root.GetAttribute(s, true);
if (null == attr)
continue;
Runtime.XIncref(attr.pyHandle);
using (PyObject obj = new PyObject(attr.pyHandle)) {
mod_dict.SetItem(s, obj);
}
}
}
}
}
}
Runtime.XIncref(py_clr_module);
return py_clr_module;
#else
Runtime.XIncref(root.pyHandle);
return root.pyHandle;
#endif
}
//====================================================================
// Metatype __new__ implementation. This is called to create a new
// class / type when a reflected class is subclassed.
//====================================================================
public static IntPtr tp_new(IntPtr tp, IntPtr args, IntPtr kw)
{
int len = Runtime.PyTuple_Size(args);
if (len < 3)
{
return Exceptions.RaiseTypeError("invalid argument list");
}
IntPtr name = Runtime.PyTuple_GetItem(args, 0);
IntPtr bases = Runtime.PyTuple_GetItem(args, 1);
IntPtr dict = Runtime.PyTuple_GetItem(args, 2);
// We do not support multiple inheritance, so the bases argument
// should be a 1-item tuple containing the type we are subtyping.
// That type must itself have a managed implementation. We check
// that by making sure its metatype is the CLR metatype.
if (Runtime.PyTuple_Size(bases) != 1)
{
return Exceptions.RaiseTypeError(
"cannot use multiple inheritance with managed classes"
);
}
IntPtr base_type = Runtime.PyTuple_GetItem(bases, 0);
IntPtr mt = Runtime.PyObject_TYPE(base_type);
if (!((mt == PyCLRMetaType) || (mt == Runtime.PyTypeType)))
{
return Exceptions.RaiseTypeError("invalid metatype");
}
// Ensure that the reflected type is appropriate for subclassing,
// disallowing subclassing of delegates, enums and array types.
ClassBase cb = GetManagedObject(base_type) as ClassBase;
if (cb != null)
{
if (!cb.CanSubclass())
{
return Exceptions.RaiseTypeError(
"delegates, enums and array types cannot be subclassed"
);
}
}
IntPtr slots = Runtime.PyDict_GetItemString(dict, "__slots__");
if (slots != IntPtr.Zero)
{
return Exceptions.RaiseTypeError(
"subclasses of managed classes do not support __slots__"
);
}
// If __assembly__ or __namespace__ are in the class dictionary then create
// a managed sub type.
// This creates a new managed type that can be used from .net to call back
// into python.
if (IntPtr.Zero != dict)
{
Runtime.XIncref(dict);
using (PyDict clsDict = new PyDict(dict))
{
if (clsDict.HasKey("__assembly__") || clsDict.HasKey("__namespace__"))
return TypeManager.CreateSubType(name, base_type, dict);
}
}
// otherwise just create a basic type without reflecting back into the managed side.
IntPtr func = Marshal.ReadIntPtr(Runtime.PyTypeType,
TypeOffset.tp_new);
IntPtr type = NativeCall.Call_3(func, tp, args, kw);
if (type == IntPtr.Zero)
{
return IntPtr.Zero;
}
int flags = TypeFlags.Default;
flags |= TypeFlags.Managed;
flags |= TypeFlags.HeapType;
flags |= TypeFlags.BaseType;
flags |= TypeFlags.Subclass;
flags |= TypeFlags.HaveGC;
Marshal.WriteIntPtr(type, TypeOffset.tp_flags, (IntPtr)flags);
TypeManager.CopySlot(base_type, type, TypeOffset.tp_dealloc);
// Hmm - the standard subtype_traverse, clear look at ob_size to
// do things, so to allow gc to work correctly we need to move
// our hidden handle out of ob_size. Then, in theory we can
// comment this out and still not crash.
TypeManager.CopySlot(base_type, type, TypeOffset.tp_traverse);
TypeManager.CopySlot(base_type, type, TypeOffset.tp_clear);
// for now, move up hidden handle...
IntPtr gc = Marshal.ReadIntPtr(base_type, TypeOffset.magic());
Marshal.WriteIntPtr(type, TypeOffset.magic(), gc);
return type;
}
/// <summary>
/// Metatype __new__ implementation. This is called to create a new
/// class / type when a reflected class is subclassed.
/// </summary>
public static IntPtr tp_new(IntPtr tp, IntPtr args, IntPtr kw)
{
int len = Runtime.PyTuple_Size(args);
if (len < 3)
{
return(Exceptions.RaiseTypeError("invalid argument list"));
}
IntPtr name = Runtime.PyTuple_GetItem(args, 0);
IntPtr bases = Runtime.PyTuple_GetItem(args, 1);
IntPtr dict = Runtime.PyTuple_GetItem(args, 2);
// We do not support multiple inheritance, so the bases argument
// should be a 1-item tuple containing the type we are subtyping.
// That type must itself have a managed implementation. We check
// that by making sure its metatype is the CLR metatype.
if (Runtime.PyTuple_Size(bases) != 1)
{
return(Exceptions.RaiseTypeError("cannot use multiple inheritance with managed classes"));
}
IntPtr base_type = Runtime.PyTuple_GetItem(bases, 0);
IntPtr mt = Runtime.PyObject_TYPE(base_type);
if (!(mt == PyCLRMetaType || mt == Runtime.PyTypeType))
{
return(Exceptions.RaiseTypeError("invalid metatype"));
}
// Ensure that the reflected type is appropriate for subclassing,
// disallowing subclassing of delegates, enums and array types.
var cb = GetManagedObject(base_type) as ClassBase;
if (cb != null)
{
if (!cb.CanSubclass())
{
return(Exceptions.RaiseTypeError("delegates, enums and array types cannot be subclassed"));
}
}
IntPtr slots = Runtime.PyDict_GetItemString(dict, "__slots__");
if (slots != IntPtr.Zero)
{
return(Exceptions.RaiseTypeError("subclasses of managed classes do not support __slots__"));
}
// If __assembly__ or __namespace__ are in the class dictionary then create
// a managed sub type.
// This creates a new managed type that can be used from .net to call back
// into python.
if (IntPtr.Zero != dict)
{
Runtime.XIncref(dict);
using (var clsDict = new PyDict(dict))
{
if (clsDict.HasKey("__assembly__") || clsDict.HasKey("__namespace__"))
{
return(TypeManager.CreateSubType(name, base_type, dict));
}
}
}
// otherwise just create a basic type without reflecting back into the managed side.
IntPtr func = Marshal.ReadIntPtr(Runtime.PyTypeType, TypeOffset.tp_new);
IntPtr type = NativeCall.Call_3(func, tp, args, kw);
if (type == IntPtr.Zero)
{
return(IntPtr.Zero);
}
int flags = TypeFlags.Default;
flags |= TypeFlags.Managed;
flags |= TypeFlags.HeapType;
flags |= TypeFlags.BaseType;
flags |= TypeFlags.Subclass;
flags |= TypeFlags.HaveGC;
Util.WriteCLong(type, TypeOffset.tp_flags, flags);
TypeManager.CopySlot(base_type, type, TypeOffset.tp_dealloc);
// Hmm - the standard subtype_traverse, clear look at ob_size to
// do things, so to allow gc to work correctly we need to move
// our hidden handle out of ob_size. Then, in theory we can
// comment this out and still not crash.
TypeManager.CopySlot(base_type, type, TypeOffset.tp_traverse);
TypeManager.CopySlot(base_type, type, TypeOffset.tp_clear);
// for now, move up hidden handle...
IntPtr gc = Marshal.ReadIntPtr(base_type, TypeOffset.magic());
Marshal.WriteIntPtr(type, TypeOffset.magic(), gc);
return(type);
}
