| private PyTuple_SetItem ( IntPtr pointer, int index, IntPtr value ) : int | ||
| pointer | IntPtr | |
| index | int | |
| value | IntPtr | |
| Результат | int | |
static void SetupImportHook()
{
// Create the import hook module
using var import_hook_module = Runtime.PyModule_New("clr.loader");
BorrowedReference mod_dict = Runtime.PyModule_GetDict(import_hook_module.BorrowOrThrow());
Debug.Assert(mod_dict != null);
// Run the python code to create the module's classes.
var builtins = Runtime.PyEval_GetBuiltins();
var exec = Runtime.PyDict_GetItemString(builtins, "exec");
using var args = Runtime.PyTuple_New(2);
PythonException.ThrowIfIsNull(args);
using var codeStr = Runtime.PyString_FromString(LoaderCode);
Runtime.PyTuple_SetItem(args.Borrow(), 0, codeStr.StealOrThrow());
// reference not stolen due to overload incref'ing for us.
Runtime.PyTuple_SetItem(args.Borrow(), 1, mod_dict);
Runtime.PyObject_Call(exec, args.Borrow(), default).Dispose();
// Set as a sub-module of clr.
if (Runtime.PyModule_AddObject(ClrModuleReference, "loader", import_hook_module.Steal()) != 0)
{
throw PythonException.ThrowLastAsClrException();
}
// Finally, add the hook to the meta path
var findercls = Runtime.PyDict_GetItemString(mod_dict, "DotNetFinder");
using var finderCtorArgs = Runtime.PyTuple_New(0);
using var finder_inst = Runtime.PyObject_CallObject(findercls, finderCtorArgs.Borrow());
var metapath = Runtime.PySys_GetObject("meta_path");
PythonException.ThrowIfIsNotZero(Runtime.PyList_Append(metapath, finder_inst.BorrowOrThrow()));
}
/// <summary>
/// This will return default arguments a new instance of a tuple. The size
/// of the tuple will indicate the number of default arguments.
/// </summary>
/// <param name="args">This is pointing to the tuple args passed in</param>
/// <returns>a new instance of the tuple containing the default args</returns>
internal IntPtr GetDefaultArgs(IntPtr args)
{
// if we don't need default args return empty tuple
if (!NeedsDefaultArgs(args))
{
return(Runtime.PyTuple_New(0));
}
var pynargs = Runtime.PyTuple_Size(args);
// Get the default arg tuple
MethodBase[] methods = SetterBinder.GetMethods();
MethodBase mi = methods[0];
ParameterInfo[] pi = mi.GetParameters();
int clrnargs = pi.Length - 1;
IntPtr defaultArgs = Runtime.PyTuple_New(clrnargs - pynargs);
for (var i = 0; i < clrnargs - pynargs; i++)
{
if (pi[i + pynargs].DefaultValue == DBNull.Value)
{
continue;
}
IntPtr arg = Converter.ToPython(pi[i + pynargs].DefaultValue, pi[i + pynargs].ParameterType);
Runtime.PyTuple_SetItem(defaultArgs, i, arg);
}
return(defaultArgs);
}
/// <summary>
/// Set the 'args' slot on a python exception object that wraps
/// a CLR exception. This is needed for pickling CLR exceptions as
/// BaseException_reduce will only check the slots, bypassing the
/// __getattr__ implementation, and thus dereferencing a NULL
/// pointer.
/// </summary>
internal static void SetArgsAndCause(BorrowedReference ob, Exception e)
{
IntPtr args;
if (!string.IsNullOrEmpty(e.Message))
{
args = Runtime.PyTuple_New(1);
IntPtr msg = Runtime.PyString_FromString(e.Message);
Runtime.PyTuple_SetItem(args, 0, msg);
}
else
{
args = Runtime.PyTuple_New(0);
}
using var argsTuple = NewReference.DangerousFromPointer(args);
if (Runtime.PyObject_SetAttrString(ob, "args", argsTuple) != 0)
{
throw PythonException.ThrowLastAsClrException();
}
if (e.InnerException != null)
{
// Note: For an AggregateException, InnerException is only the first of the InnerExceptions.
using var cause = CLRObject.GetReference(e.InnerException);
Runtime.PyException_SetCause(ob, cause.Steal());
}
}
/// <summary>
/// Set the 'args' slot on a python exception object that wraps
/// a CLR exception. This is needed for pickling CLR exceptions as
/// BaseException_reduce will only check the slots, bypassing the
/// __getattr__ implementation, and thus dereferencing a NULL
/// pointer.
/// </summary>
internal static bool SetArgsAndCause(BorrowedReference ob, Exception e)
{
NewReference args;
if (!string.IsNullOrEmpty(e.Message))
{
args = Runtime.PyTuple_New(1);
using var msg = Runtime.PyString_FromString(e.Message);
Runtime.PyTuple_SetItem(args.Borrow(), 0, msg.StealOrThrow());
}
else
{
args = Runtime.PyTuple_New(0);
}
using (args)
{
if (Runtime.PyObject_SetAttrString(ob, "args", args.Borrow()) != 0)
{
return(false);
}
}
if (e.InnerException != null)
{
// Note: For an AggregateException, InnerException is only the first of the InnerExceptions.
using var cause = CLRObject.GetReference(e.InnerException);
Runtime.PyException_SetCause(ob, cause.Steal());
}
return(true);
}
/// <summary>
/// Set the 'args' slot on a python exception object that wraps
/// a CLR exception. This is needed for pickling CLR exceptions as
/// BaseException_reduce will only check the slots, bypassing the
/// __getattr__ implementation, and thus dereferencing a NULL
/// pointer.
/// </summary>
/// <param name="ob">The python object wrapping </param>
internal static void SetArgsAndCause(Exception e, IntPtr ob)
{
IntPtr args;
if (!string.IsNullOrEmpty(e.Message))
{
args = Runtime.PyTuple_New(1);
IntPtr msg = Runtime.PyUnicode_FromString(e.Message);
Runtime.PyTuple_SetItem(args, 0, msg);
}
else
{
args = Runtime.PyTuple_New(0);
}
if (Runtime.PyObject_SetAttrString(ob, "args", args) != 0)
{
throw new PythonException();
}
if (e.InnerException != null)
{
// Note: For an AggregateException, InnerException is only the first of the InnerExceptions.
using var cause = CLRObject.GetReference(e.InnerException);
Runtime.PyException_SetCause(ob, cause.DangerousMoveToPointer());
}
}
//====================================================================
// Exceptions __getattribute__ implementation.
// handles Python's args and message attributes
//====================================================================
public static IntPtr tp_getattro(IntPtr ob, IntPtr key)
{
if (!Runtime.PyString_Check(key))
{
Exceptions.SetError(Exceptions.TypeError, "string expected");
return(IntPtr.Zero);
}
string name = Runtime.GetManagedString(key);
if (name == "args")
{
Exception e = ToException(ob);
IntPtr args;
if (e.Message != String.Empty)
{
args = Runtime.PyTuple_New(1);
IntPtr msg = Runtime.PyUnicode_FromString(e.Message);
Runtime.PyTuple_SetItem(args, 0, msg);
}
else
{
args = Runtime.PyTuple_New(0);
}
return(args);
}
if (name == "message")
{
return(ExceptionClassObject.tp_str(ob));
}
return(Runtime.PyObject_GenericGetAttr(ob, key));
}
//====================================================================
// 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);
}
/// <summary>
/// This will return default arguments a new instance of a tuple. The size
/// of the tuple will indicate the number of default arguments.
/// </summary>
/// <param name="args">This is pointing to the tuple args passed in</param>
/// <returns>a new instance of the tuple containing the default args</returns>
internal NewReference GetDefaultArgs(BorrowedReference args)
{
// if we don't need default args return empty tuple
if (!NeedsDefaultArgs(args))
{
return(Runtime.PyTuple_New(0));
}
var pynargs = Runtime.PyTuple_Size(args);
// Get the default arg tuple
var methods = SetterBinder.GetMethods();
MethodBase mi = methods[0].MethodBase;
ParameterInfo[] pi = mi.GetParameters();
int clrnargs = pi.Length - 1;
var defaultArgs = Runtime.PyTuple_New(clrnargs - pynargs);
for (var i = 0; i < clrnargs - pynargs; i++)
{
if (pi[i + pynargs].DefaultValue == DBNull.Value)
{
continue;
}
using var arg = Converter.ToPython(pi[i + pynargs].DefaultValue, pi[i + pynargs].ParameterType);
Runtime.PyTuple_SetItem(defaultArgs.Borrow(), i, arg.Steal());
}
return(defaultArgs);
}
/// <summary>
/// Set the 'args' slot on a python exception object that wraps
/// a CLR exception. This is needed for pickling CLR exceptions as
/// BaseException_reduce will only check the slots, bypassing the
/// __getattr__ implementation, and thus dereferencing a NULL
/// pointer.
/// </summary>
/// <param name="ob">The python object wrapping </param>
internal static void SetArgsAndCause(IntPtr ob)
{
// e: A CLR Exception
Exception e = ExceptionClassObject.ToException(ob);
if (e == null)
{
return;
}
IntPtr args;
if (!string.IsNullOrEmpty(e.Message))
{
args = Runtime.PyTuple_New(1);
IntPtr msg = Runtime.PyUnicode_FromString(e.Message);
Runtime.PyTuple_SetItem(args, 0, msg);
}
else
{
args = Runtime.PyTuple_New(0);
}
Marshal.WriteIntPtr(ob, ExceptionOffset.args, args);
#if PYTHON3
if (e.InnerException != null)
{
IntPtr cause = CLRObject.GetInstHandle(e.InnerException);
Marshal.WriteIntPtr(ob, ExceptionOffset.cause, cause);
}
#endif
}
static void SetupImportHook()
{
// Create the import hook module
var import_hook_module = Runtime.PyModule_New("clr.loader");
// Run the python code to create the module's classes.
var builtins = Runtime.PyEval_GetBuiltins();
var exec = Runtime.PyDict_GetItemString(builtins, "exec");
using var args = NewReference.DangerousFromPointer(Runtime.PyTuple_New(2));
var codeStr = NewReference.DangerousFromPointer(Runtime.PyString_FromString(LoaderCode));
Runtime.PyTuple_SetItem(args, 0, codeStr);
var mod_dict = Runtime.PyModule_GetDict(import_hook_module);
// reference not stolen due to overload incref'ing for us.
Runtime.PyTuple_SetItem(args, 1, mod_dict);
Runtime.PyObject_Call(exec, args, default).Dispose();
// Set as a sub-module of clr.
if (Runtime.PyModule_AddObject(ClrModuleReference, "loader", import_hook_module.DangerousGetAddress()) != 0)
{
Runtime.XDecref(import_hook_module.DangerousGetAddress());
throw PythonException.ThrowLastAsClrException();
}
// Finally, add the hook to the meta path
var findercls = Runtime.PyDict_GetItemString(mod_dict, "DotNetFinder");
var finderCtorArgs = NewReference.DangerousFromPointer(Runtime.PyTuple_New(0));
var finder_inst = Runtime.PyObject_CallObject(findercls, finderCtorArgs);
var metapath = Runtime.PySys_GetObject("meta_path");
Runtime.PyList_Append(metapath, finder_inst);
}
//====================================================================
// Implements __setitem__ for reflected classes and value types.
//====================================================================
public static int mp_ass_subscript(IntPtr ob, IntPtr idx, IntPtr v)
{
//ManagedType self = GetManagedObject(ob);
IntPtr tp = Runtime.PyObject_TYPE(ob);
ClassBase cls = (ClassBase)GetManagedObject(tp);
if (cls.indexer == null || !cls.indexer.CanSet)
{
Exceptions.SetError(Exceptions.TypeError,
"object doesn't support item assignment"
);
return(-1);
}
// Arg may be a tuple in the case of an indexer with multiple
// parameters. If so, use it directly, else make a new tuple
// with the index arg (method binders expect arg tuples).
IntPtr args = idx;
bool free = false;
if (!Runtime.PyTuple_Check(idx))
{
args = Runtime.PyTuple_New(1);
Runtime.Incref(idx);
Runtime.PyTuple_SetItem(args, 0, idx);
free = true;
}
int i = Runtime.PyTuple_Size(args);
IntPtr real = Runtime.PyTuple_New(i + 1);
for (int n = 0; n < i; n++)
{
IntPtr item = Runtime.PyTuple_GetItem(args, n);
Runtime.Incref(item);
Runtime.PyTuple_SetItem(real, n, item);
}
Runtime.Incref(v);
Runtime.PyTuple_SetItem(real, i, v);
try {
cls.indexer.SetItem(ob, real);
}
finally {
Runtime.Decref(real);
if (free)
{
Runtime.Decref(args);
}
}
if (Exceptions.ErrorOccurred())
{
return(-1);
}
return(0);
}
private static void AddArgument(IntPtr argtuple, int i, object target)
{
IntPtr ptr = GetPythonObject(target);
if (Runtime.PyTuple_SetItem(argtuple, i, ptr) < 0)
{
throw new PythonException();
}
}
/// <summary>
/// PyTuple Constructor
/// </summary>
/// <remarks>
/// Creates a new PyTuple from an array of PyObject instances.
/// <para />
/// See caveats about PyTuple_SetItem:
/// https://www.coursehero.com/file/p4j2ogg/important-exceptions-to-this-rule-PyTupleSetItem-and-PyListSetItem-These/
/// </remarks>
public PyTuple(PyObject[] items)
{
int count = items.Length;
obj = Runtime.PyTuple_New(count);
for (var i = 0; i < count; i++)
{
IntPtr ptr = items[i].obj;
Runtime.XIncref(ptr);
int res = Runtime.PyTuple_SetItem(obj, i, ptr);
PythonException.ThrowIfIsNotZero(res);
}
}
/// <summary>
/// PyTuple Constructor
/// </summary>
/// <remarks>
/// Creates a new PyTuple from an array of PyObject instances.
/// <para />
/// See caveats about PyTuple_SetItem:
/// https://www.coursehero.com/file/p4j2ogg/important-exceptions-to-this-rule-PyTupleSetItem-and-PyListSetItem-These/
/// </remarks>
public PyTuple(PyObject[] items)
{
int count = items.Length;
obj = Runtime.PyTuple_New(count);
for (var i = 0; i < count; i++)
{
IntPtr ptr = items[i].obj;
Runtime.XIncref(ptr);
Runtime.PyTuple_SetItem(obj, i, ptr);
Runtime.CheckExceptionOccurred();
}
}
private static IntPtr TzInfo(DateTimeKind kind)
{
if (kind == DateTimeKind.Unspecified)
{
return(Runtime.PyNone);
}
var offset = kind == DateTimeKind.Local ? DateTimeOffset.Now.Offset : TimeSpan.Zero;
IntPtr tzInfoArgs = Runtime.PyTuple_New(2);
Runtime.PyTuple_SetItem(tzInfoArgs, 0, Runtime.PyFloat_FromDouble(offset.Hours));
Runtime.PyTuple_SetItem(tzInfoArgs, 1, Runtime.PyFloat_FromDouble(offset.Minutes));
return(Runtime.PyObject_CallObject(tzInfoCtor, tzInfoArgs));
}
/// <summary>
/// PyTuple Constructor
/// </summary>
///
/// <remarks>
/// Creates a new PyTuple from an array of PyObject instances.
/// </remarks>
public PyTuple(PyObject[] items) : base()
{
int count = items.Length;
obj = Runtime.PyTuple_New(count);
for (int i = 0; i < count; i++)
{
IntPtr ptr = items[i].obj;
Runtime.XIncref(ptr);
int r = Runtime.PyTuple_SetItem(obj, i, ptr);
if (r < 0)
{
throw new PythonException();
}
}
}
private void GetArgs(object[] inargs, out PyTuple args, out PyDict kwargs)
{
int arg_count;
for (arg_count = 0; arg_count < inargs.Length && !(inargs[arg_count] is Py.KeywordArguments); ++arg_count)
{
;
}
IntPtr argtuple = Runtime.PyTuple_New(arg_count);
for (int i = 0; i < arg_count; i++)
{
IntPtr ptr;
if (inargs[i] is PyObject)
{
ptr = ((PyObject)inargs[i]).Handle;
Runtime.Incref(ptr);
}
else
{
ptr = Converter.ToPython(inargs[i], inargs[i].GetType());
}
if (Runtime.PyTuple_SetItem(argtuple, i, ptr) < 0)
{
throw new PythonException();
}
}
args = new PyTuple(argtuple);
kwargs = null;
for (int i = arg_count; i < inargs.Length; i++)
{
if (!(inargs[i] is Py.KeywordArguments))
{
throw new ArgumentException("Keyword arguments must come after normal arguments.");
}
if (kwargs == null)
{
kwargs = (Py.KeywordArguments)inargs[i];
}
else
{
kwargs.Update((Py.KeywordArguments)inargs[i]);
}
}
}
private static IntPtr FromArray(PyObject[] items)
{
int count = items.Length;
IntPtr val = Runtime.PyTuple_New(count);
for (var i = 0; i < count; i++)
{
IntPtr ptr = items[i].obj;
Runtime.XIncref(ptr);
int res = Runtime.PyTuple_SetItem(val, i, ptr);
if (res != 0)
{
Runtime.Py_DecRef(val);
throw PythonException.ThrowLastAsClrException();
}
}
return(val);
}
//====================================================================
// Implements __getitem__ for reflected classes and value types.
//====================================================================
public static IntPtr mp_subscript(IntPtr ob, IntPtr idx)
{
//ManagedType self = GetManagedObject(ob);
IntPtr tp = Runtime.PyObject_TYPE(ob);
ClassBase cls = (ClassBase)GetManagedObject(tp);
if (cls.indexer == null || !cls.indexer.CanGet)
{
Exceptions.SetError(Exceptions.TypeError,
"unindexable object"
);
return(IntPtr.Zero);
}
// Arg may be a tuple in the case of an indexer with multiple
// parameters. If so, use it directly, else make a new tuple
// with the index arg (method binders expect arg tuples).
IntPtr args = idx;
bool free = false;
if (!Runtime.PyTuple_Check(idx))
{
args = Runtime.PyTuple_New(1);
Runtime.XIncref(idx);
Runtime.PyTuple_SetItem(args, 0, idx);
free = true;
}
IntPtr value = IntPtr.Zero;
try
{
value = cls.indexer.GetItem(ob, args);
}
finally
{
if (free)
{
Runtime.XDecref(args);
}
}
return(value);
}
public object TrueDispatch(ArrayList args)
{
MethodInfo method = dtype.GetMethod("Invoke");
ParameterInfo[] pi = method.GetParameters();
IntPtr pyargs = Runtime.PyTuple_New(pi.Length);
Type rtype = method.ReturnType;
for (int i = 0; i < pi.Length; i++)
{
// Here we own the reference to the Python value, and we
// give the ownership to the arg tuple.
IntPtr arg = Converter.ToPython(args[i], pi[i].ParameterType);
Runtime.PyTuple_SetItem(pyargs, i, arg);
}
IntPtr op = Runtime.PyObject_Call(target, pyargs, IntPtr.Zero);
Runtime.Decref(pyargs);
if (op == IntPtr.Zero)
{
PythonException e = new PythonException();
throw e;
}
if (rtype == typeof(void))
{
return(null);
}
Object result = null;
if (!Converter.ToManaged(op, rtype, out result, false))
{
string s = "could not convert Python result to " +
rtype.ToString();
Runtime.Decref(op);
throw new ConversionException(s);
}
Runtime.Decref(op);
return(result);
}
public static IntPtr tp_repr(IntPtr ob)
{
var co = GetManagedObject(ob) as CLRObject;
if (co == null)
{
return(Exceptions.RaiseTypeError("invalid object"));
}
try
{
//if __repr__ is defined, use it
var instType = co.inst.GetType();
System.Reflection.MethodInfo methodInfo = instType.GetMethod("__repr__");
if (methodInfo != null && methodInfo.IsPublic)
{
var reprString = methodInfo.Invoke(co.inst, null) as string;
return(Runtime.PyString_FromString(reprString));
}
//otherwise use the standard object.__repr__(inst)
IntPtr args = Runtime.PyTuple_New(1);
Runtime.XIncref(ob);
Runtime.PyTuple_SetItem(args, 0, ob);
IntPtr reprFunc = Runtime.PyObject_GetAttr(Runtime.PyBaseObjectType, PyIdentifier.__repr__);
var output = Runtime.PyObject_Call(reprFunc, args, IntPtr.Zero);
Runtime.XDecref(args);
Runtime.XDecref(reprFunc);
return(output);
}
catch (Exception e)
{
if (e.InnerException != null)
{
e = e.InnerException;
}
Exceptions.SetError(e);
return(IntPtr.Zero);
}
}
internal static IntPtr GenerateExceptionClass(IntPtr real)
{
if (real == ns_exc)
{
return(os_exc);
}
IntPtr nbases = Runtime.PyObject_GetAttrString(real, "__bases__");
if (Runtime.PyTuple_Size(nbases) != 1)
{
throw new SystemException("Invalid __bases__");
}
IntPtr nsbase = Runtime.PyTuple_GetItem(nbases, 0);
Runtime.Decref(nbases);
IntPtr osbase = GetExceptionClassWrapper(nsbase);
IntPtr baselist = Runtime.PyTuple_New(1);
Runtime.Incref(osbase);
Runtime.PyTuple_SetItem(baselist, 0, osbase);
IntPtr name = Runtime.PyObject_GetAttrString(real, "__name__");
IntPtr dict = Runtime.PyDict_New();
IntPtr mod = Runtime.PyObject_GetAttrString(real, "__module__");
Runtime.PyDict_SetItemString(dict, "__module__", mod);
Runtime.Decref(mod);
IntPtr subc = Runtime.PyClass_New(baselist, dict, name);
Runtime.Decref(baselist);
Runtime.Decref(dict);
Runtime.Decref(name);
Runtime.PyObject_SetAttrString(subc, "_class", real);
return(subc);
}
/// <summary>
/// PyTuple Constructor
/// </summary>
/// <remarks>
/// Creates a new PyTuple from an array of PyObject instances.
/// <para />
/// See caveats about PyTuple_SetItem:
/// https://www.coursehero.com/file/p4j2ogg/important-exceptions-to-this-rule-PyTupleSetItem-and-PyListSetItem-These/
/// </remarks>
public PyTuple(PyObject[] items)
{
int count = items.Length;
obj = Runtime.PyTuple_New(count);
if (obj == IntPtr.Zero)
{
throw new PythonException();
}
for (int i = 0; i < count; i++)
{
IntPtr ptr = items[i].obj;
Runtime.XIncref(ptr);
if (Runtime.PyTuple_SetItem(obj, i, ptr) != 0)
{
for (int j = i; j >= 0; j--)
{
Runtime.XDecref(items[j].obj);
}
throw new PythonException();
}
}
}
//====================================================================
// 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());
}
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);
}
}
internal virtual IntPtr Invoke(IntPtr inst, IntPtr args, IntPtr kw, MethodBase info, MethodInfo[] methodinfo)
{
Binding binding = Bind(inst, args, kw, info, methodinfo);
object result;
IntPtr ts = IntPtr.Zero;
if (binding == null)
{
var value = new StringBuilder("No method matches given arguments");
if (methodinfo != null && methodinfo.Length > 0)
{
value.Append($" for {methodinfo[0].Name}");
}
value.Append(": ");
AppendArgumentTypes(to: value, args);
Exceptions.SetError(Exceptions.TypeError, value.ToString());
return(IntPtr.Zero);
}
if (allow_threads)
{
ts = PythonEngine.BeginAllowThreads();
}
try
{
result = binding.info.Invoke(binding.inst, BindingFlags.Default, null, binding.args, null);
}
catch (Exception e)
{
if (e.InnerException != null)
{
e = e.InnerException;
}
if (allow_threads)
{
PythonEngine.EndAllowThreads(ts);
}
Exceptions.SetError(e);
return(IntPtr.Zero);
}
if (allow_threads)
{
PythonEngine.EndAllowThreads(ts);
}
// If there are out parameters, we return a tuple containing
// the result followed by the out parameters. If there is only
// one out parameter and the return type of the method is void,
// we return the out parameter as the result to Python (for
// code compatibility with ironpython).
var mi = (MethodInfo)binding.info;
if (binding.outs == 1 && mi.ReturnType == typeof(void))
{
}
if (binding.outs > 0)
{
ParameterInfo[] pi = mi.GetParameters();
int c = pi.Length;
var n = 0;
IntPtr t = Runtime.PyTuple_New(binding.outs + 1);
IntPtr v = Converter.ToPython(result, mi.ReturnType);
Runtime.PyTuple_SetItem(t, n, v);
n++;
for (var i = 0; i < c; i++)
{
Type pt = pi[i].ParameterType;
if (pi[i].IsOut || pt.IsByRef)
{
v = Converter.ToPython(binding.args[i], pt);
Runtime.PyTuple_SetItem(t, n, v);
n++;
}
}
if (binding.outs == 1 && mi.ReturnType == typeof(void))
{
v = Runtime.PyTuple_GetItem(t, 1);
Runtime.XIncref(v);
Runtime.XDecref(t);
return(v);
}
return(t);
}
return(Converter.ToPython(result, mi.ReturnType));
}
/// <summary>
/// Standard comparison implementation for instances of reflected types.
/// </summary>
public static IntPtr tp_richcompare(IntPtr ob, IntPtr other, int op)
{
CLRObject co1;
CLRObject co2;
IntPtr tp = Runtime.PyObject_TYPE(ob);
var cls = (ClassBase)GetManagedObject(tp);
// C# operator methods take precedence over IComparable.
// We first check if there's a comparison operator by looking up the richcompare table,
// otherwise fallback to checking if an IComparable interface is handled.
if (cls.richcompare.TryGetValue(op, out var methodObject))
{
// Wrap the `other` argument of a binary comparison operator in a PyTuple.
IntPtr args = Runtime.PyTuple_New(1);
Runtime.XIncref(other);
Runtime.PyTuple_SetItem(args, 0, other);
IntPtr value;
try
{
value = methodObject.Invoke(ob, args, IntPtr.Zero);
}
finally
{
Runtime.XDecref(args); // Free args pytuple
}
return(value);
}
switch (op)
{
case Runtime.Py_EQ:
case Runtime.Py_NE:
IntPtr pytrue = Runtime.PyTrue;
IntPtr pyfalse = Runtime.PyFalse;
// swap true and false for NE
if (op != Runtime.Py_EQ)
{
pytrue = Runtime.PyFalse;
pyfalse = Runtime.PyTrue;
}
if (ob == other)
{
Runtime.XIncref(pytrue);
return(pytrue);
}
co1 = GetManagedObject(ob) as CLRObject;
co2 = GetManagedObject(other) as CLRObject;
if (null == co2)
{
Runtime.XIncref(pyfalse);
return(pyfalse);
}
object o1 = co1.inst;
object o2 = co2.inst;
if (Equals(o1, o2))
{
Runtime.XIncref(pytrue);
return(pytrue);
}
Runtime.XIncref(pyfalse);
return(pyfalse);
case Runtime.Py_LT:
case Runtime.Py_LE:
case Runtime.Py_GT:
case Runtime.Py_GE:
co1 = GetManagedObject(ob) as CLRObject;
co2 = GetManagedObject(other) as CLRObject;
if (co1 == null || co2 == null)
{
return(Exceptions.RaiseTypeError("Cannot get managed object"));
}
var co1Comp = co1.inst as IComparable;
if (co1Comp == null)
{
Type co1Type = co1.GetType();
return(Exceptions.RaiseTypeError($"Cannot convert object of type {co1Type} to IComparable"));
}
try
{
int cmp = co1Comp.CompareTo(co2.inst);
IntPtr pyCmp;
if (cmp < 0)
{
if (op == Runtime.Py_LT || op == Runtime.Py_LE)
{
pyCmp = Runtime.PyTrue;
}
else
{
pyCmp = Runtime.PyFalse;
}
}
else if (cmp == 0)
{
if (op == Runtime.Py_LE || op == Runtime.Py_GE)
{
pyCmp = Runtime.PyTrue;
}
else
{
pyCmp = Runtime.PyFalse;
}
}
else
{
if (op == Runtime.Py_GE || op == Runtime.Py_GT)
{
pyCmp = Runtime.PyTrue;
}
else
{
pyCmp = Runtime.PyFalse;
}
}
Runtime.XIncref(pyCmp);
return(pyCmp);
}
catch (ArgumentException e)
{
return(Exceptions.RaiseTypeError(e.Message));
}
default:
Runtime.XIncref(Runtime.PyNotImplemented);
return(Runtime.PyNotImplemented);
}
}
/// <summary>
/// Implements __setitem__ for reflected classes and value types.
/// </summary>
public static int mp_ass_subscript(IntPtr ob, IntPtr idx, IntPtr v)
{
IntPtr tp = Runtime.PyObject_TYPE(ob);
var cls = (ClassBase)GetManagedObject(tp);
if (cls.indexer == null || !cls.indexer.CanSet)
{
Exceptions.SetError(Exceptions.TypeError, "object doesn't support item assignment");
return(-1);
}
// Arg may be a tuple in the case of an indexer with multiple
// parameters. If so, use it directly, else make a new tuple
// with the index arg (method binders expect arg tuples).
IntPtr args = idx;
var free = false;
if (!Runtime.PyTuple_Check(idx))
{
args = Runtime.PyTuple_New(1);
Runtime.XIncref(idx);
Runtime.PyTuple_SetItem(args, 0, idx);
free = true;
}
// Get the args passed in.
var i = Runtime.PyTuple_Size(args);
IntPtr defaultArgs = cls.indexer.GetDefaultArgs(args);
var numOfDefaultArgs = Runtime.PyTuple_Size(defaultArgs);
var temp = i + numOfDefaultArgs;
IntPtr real = Runtime.PyTuple_New(temp + 1);
for (var n = 0; n < i; n++)
{
IntPtr item = Runtime.PyTuple_GetItem(args, n);
Runtime.XIncref(item);
Runtime.PyTuple_SetItem(real, n, item);
}
// Add Default Args if needed
for (var n = 0; n < numOfDefaultArgs; n++)
{
IntPtr item = Runtime.PyTuple_GetItem(defaultArgs, n);
Runtime.XIncref(item);
Runtime.PyTuple_SetItem(real, n + i, item);
}
// no longer need defaultArgs
Runtime.XDecref(defaultArgs);
i = temp;
// Add value to argument list
Runtime.XIncref(v);
Runtime.PyTuple_SetItem(real, i, v);
try
{
cls.indexer.SetItem(ob, real);
}
finally
{
Runtime.XDecref(real);
if (free)
{
Runtime.XDecref(args);
}
}
if (Exceptions.ErrorOccurred())
{
return(-1);
}
return(0);
}
internal virtual IntPtr Invoke(IntPtr inst, IntPtr args, IntPtr kw, MethodBase info, MethodInfo[] methodinfo)
{
// No valid methods, nothing to bind.
if (GetMethods().Length == 0)
{
var msg = new StringBuilder("The underlying C# method(s) have been deleted");
if (list.Count > 0 && list[0].Name != null)
{
msg.Append($": {list[0]}");
}
return(Exceptions.RaiseTypeError(msg.ToString()));
}
Binding binding = Bind(inst, args, kw, info, methodinfo);
object result;
IntPtr ts = IntPtr.Zero;
if (binding == null)
{
var value = new StringBuilder("No method matches given arguments");
if (methodinfo != null && methodinfo.Length > 0)
{
value.Append($" for {methodinfo[0].Name}");
}
else if (list.Count > 0 && list[0].Valid)
{
value.Append($" for {list[0].Value.Name}");
}
value.Append(": ");
Runtime.PyErr_Fetch(out var errType, out var errVal, out var errTrace);
AppendArgumentTypes(to: value, args);
Runtime.PyErr_Restore(errType.StealNullable(), errVal.StealNullable(), errTrace.StealNullable());
Exceptions.RaiseTypeError(value.ToString());
return(IntPtr.Zero);
}
if (allow_threads)
{
ts = PythonEngine.BeginAllowThreads();
}
try
{
result = binding.info.Invoke(binding.inst, BindingFlags.Default, null, binding.args, null);
}
catch (Exception e)
{
if (e.InnerException != null)
{
e = e.InnerException;
}
if (allow_threads)
{
PythonEngine.EndAllowThreads(ts);
}
Exceptions.SetError(e);
return(IntPtr.Zero);
}
if (allow_threads)
{
PythonEngine.EndAllowThreads(ts);
}
// If there are out parameters, we return a tuple containing
// the result, if any, followed by the out parameters. If there is only
// one out parameter and the return type of the method is void,
// we return the out parameter as the result to Python (for
// code compatibility with ironpython).
var mi = (MethodInfo)binding.info;
if (binding.outs > 0)
{
ParameterInfo[] pi = mi.GetParameters();
int c = pi.Length;
var n = 0;
bool isVoid = mi.ReturnType == typeof(void);
int tupleSize = binding.outs + (isVoid ? 0 : 1);
IntPtr t = Runtime.PyTuple_New(tupleSize);
if (!isVoid)
{
IntPtr v = Converter.ToPython(result, mi.ReturnType);
Runtime.PyTuple_SetItem(t, n, v);
n++;
}
for (var i = 0; i < c; i++)
{
Type pt = pi[i].ParameterType;
if (pt.IsByRef)
{
IntPtr v = Converter.ToPython(binding.args[i], pt.GetElementType());
Runtime.PyTuple_SetItem(t, n, v);
n++;
}
}
if (binding.outs == 1 && mi.ReturnType == typeof(void))
{
IntPtr v = Runtime.PyTuple_GetItem(t, 0);
Runtime.XIncref(v);
Runtime.XDecref(t);
return(v);
}
return(t);
}
return(Converter.ToPython(result, mi.ReturnType));
}
internal virtual IntPtr Invoke(IntPtr inst, IntPtr args, IntPtr kw, Type type, MethodBase info, MethodInfo[] methodinfo)
{
List <Binding> bindings = Bind(inst, args, kw, type, info, methodinfo);
object result = null;
IntPtr ts = IntPtr.Zero;
if (bindings.Count == 0)
{
var value = "No method matches given arguments";
if (methodinfo != null && methodinfo.Length > 0)
{
value += $" for {methodinfo[0].Name}";
}
Exceptions.SetError(Exceptions.TypeError, value);
return(IntPtr.Zero);
}
if (allow_threads)
{
ts = PythonEngine.BeginAllowThreads();
}
#region COM Binding
Binding binding = null;
Exception ex = new Exception();
foreach (Binding bind in bindings)
{
if (binding != null)
{
break;
}
try
{
result = bind.info.Invoke(bind.inst, BindingFlags.Default, null, bind.args, null);
binding = bind;
}
catch (TargetInvocationException e)
{
System.Diagnostics.Debug.WriteLine("TargetInvocationException: " + bind.info.Name + " with " + bind.args.Length + " arguments.");
binding = null;
ex = e;
}
catch (Exception e)
{
binding = null;
ex = e;
}
}
if (binding == null)
{
if (ex.InnerException != null)
{
ex = ex.InnerException;
}
if (allow_threads)
{
PythonEngine.EndAllowThreads(ts);
}
Exceptions.SetError(ex);
return(IntPtr.Zero);
}
#endregion
if (allow_threads)
{
PythonEngine.EndAllowThreads(ts);
}
// If there are out parameters, we return a tuple containing
// the result followed by the out parameters. If there is only
// one out parameter and the return type of the method is void,
// we return the out parameter as the result to Python (for
// code compatibility with ironpython).
var mi = (MethodInfo)binding.info;
if (binding.outs == 1 && mi.ReturnType == typeof(void))
{
}
if (binding.outs > 0)
{
ParameterInfo[] pi = mi.GetParameters();
int c = pi.Length;
var n = 0;
IntPtr t = Runtime.PyTuple_New(binding.outs + 1);
IntPtr v = Converter.ToPython(result, mi.ReturnType);
Runtime.PyTuple_SetItem(t, n, v);
n++;
for (var i = 0; i < c; i++)
{
Type pt = pi[i].ParameterType;
if (pi[i].IsOut || pt.IsByRef)
{
v = Converter.ToPython(binding.args[i], pt);
Runtime.PyTuple_SetItem(t, n, v);
n++;
}
}
if (binding.outs == 1 && mi.ReturnType == typeof(void))
{
v = Runtime.PyTuple_GetItem(t, 1);
Runtime.XIncref(v);
Runtime.XDecref(t);
return(v);
}
return(t);
}
return(Converter.ToPython(result, mi.ReturnType));
}