//
// SPDX-License-Identifier: BSD-3-Clause
// Copyright Contributors to the OpenEXR Project.
//
// clang-format off
#ifndef _PyImathAPI_h_
#define _PyImathAPI_h_
#include <patchlevel.h>
#if PY_MAJOR_VERSION >= 3
// Big changes in Python3 with regard to PyClass. Most of these functions
// are gone so the equivalent functionality is done this way...
#define PyClass_Check(object) \
PyObject_IsInstance (object, reinterpret_cast<PyObject *> (&PyType_Type))
// Py_FindMethod is gone and so you must search for functions by searching
// through an object's attributes.
#define Py_FindMethod(methods, self, name) \
PyObject_GenericGetAttr(self, PyBytes_FromString(name))
// One of the biggest differences between 2&3 is use support for Unicode.
// Working with strings at the C API level one has be careful that the
// returned object will not be Unicode and thus need to be decoded before
// being interpreted. These macros will return the PyBytes type of PyObject
// pointer that replaces PyString.
#define PyString_Check(str) PyBytes_Check(str)
#define PyString_FromString(str) PyBytes_FromString(str)
#define PyString_AsString(obj) PyBytes_AsString(obj)
#define PyString_AsStringAndSize(obj, str, len) PyBytes_AsStringAndSize(obj, str, len)
// Python3 interprets all integers as long types and has deprecated PyInt.
#define PyInt_Check(x) PyLong_Check(x)
#define PyInt_AsLong(x) PyLong_AsLong(x)
#define PyInt_AS_LONG(x) PyLong_AsLong(x)
#define PyInt_AsSsize_t(x) PyLong_AsSsize_t(x)
#define PyInt_FromLong(x) PyLong_FromLong(x)
// These flags are not present in Python3 and must be replaced with the
// default set of flags so that OR'ing them together doesn't alter the
// flags.
#define Py_TPFLAGS_CHECKTYPES Py_TPFLAGS_DEFAULT
#define Py_TPFLAGS_HAVE_RICHCOMPARE Py_TPFLAGS_DEFAULT
// The __repr__ for a TypeObject will be encoded and needs to be
// processed as a PyBytes object before it can be return as a string.
#define PYUTIL_OBJECT_REPR(obj) PyObject_Str (PyObject_Repr (obj))
#else
// Python2 code will need to access PyObject_Repr() via this macro so
// that both 2&3 can compile without modification.
#define PYUTIL_OBJECT_REPR(obj) PyObject_Repr (obj)
#endif
#endif // _PyImathAPI_h_
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