gi/pyglib-python-compat.h

   1 /* -*- Mode: C; c-basic-offset: 4 -*-
   2  * pyglib - Python bindings for GLib toolkit.
   3  * Copyright (C) 2008  Johan Dahlin
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifndef __PYGLIB_PYTHON_COMPAT_H__
  20 #define __PYGLIB_PYTHON_COMPAT_H__
  21
  22 # define PYGLIB_CPointer_Check PyCapsule_CheckExact
  23 # define PYGLIB_CPointer_WrapPointer(ptr, typename) \
  24     PyCapsule_New(ptr, typename, NULL)
  25 # define PYGLIB_CPointer_GetPointer(obj, typename) \
  26     PyCapsule_GetPointer(obj, typename)
  27 # define PYGLIB_CPointer_Import(module, symbol) \
  28     PyCapsule_Import(##module##.##symbol##, FALSE)
  29
  30
  31 #define PYGLIB_MODULE_ERROR_RETURN NULL
  32
  33 /* Compilation on Python 2.x */
  34 #if PY_VERSION_HEX < 0x03000000
  35
  36 #define RO READONLY
  37
  38 #define PYGLIB_PyBaseString_Check(ob) (PyString_Check(ob) || PyUnicode_Check(ob))
  39
  40 #define PYGLIB_PyUnicode_Check PyString_Check
  41 #define PYGLIB_PyUnicode_AsString PyString_AsString
  42 #define PYGLIB_PyUnicode_AsStringAndSize PyString_AsStringAndSize
  43 #define PYGLIB_PyUnicode_FromString PyString_FromString
  44 #define PYGLIB_PyUnicode_FromStringAndSize PyString_FromStringAndSize
  45 #define PYGLIB_PyUnicode_FromFormat PyString_FromFormat
  46 #define PYGLIB_PyUnicode_AS_STRING PyString_AS_STRING
  47 #define PYGLIB_PyUnicode_GET_SIZE PyString_GET_SIZE
  48 #define PYGLIB_PyUnicode_Type PyString_Type
  49 #define PYGLIB_PyUnicode_InternFromString PyString_InternFromString
  50 #define PYGLIB_PyUnicode_InternInPlace PyString_InternInPlace
  51 #define PYGLIB_PyUnicode_Format PyString_Format
  52
  53 #define PYGLIB_PyBytes_FromString PyString_FromString
  54 #define PYGLIB_PyBytes_FromStringAndSize PyString_FromStringAndSize
  55 #define PYGLIB_PyBytes_Resize _PyString_Resize
  56 #define PYGLIB_PyBytes_AsString PyString_AsString
  57 #define PYGLIB_PyBytes_AsStringAndSize PyString_AsStringAndSize
  58 #define PYGLIB_PyBytes_Size PyString_Size
  59 #define PYGLIB_PyBytes_Check PyString_Check
  60
  61 #define PYGLIB_PyLong_Check PyInt_Check
  62 #define PYGLIB_PyLong_FromLong PyInt_FromLong
  63 #define PYGLIB_PyLong_FromSsize_t PyInt_FromSsize_t
  64 #define PYGLIB_PyLong_FromSize_t PyInt_FromSize_t
  65 #define PYGLIB_PyLong_AsLong  PyInt_AsLong
  66 #define PYGLIB_PyLong_AsSsize_t  PyInt_AsSsize_t
  67 #define PYGLIB_PyLongObject PyIntObject
  68 #define PYGLIB_PyLong_Type PyInt_Type
  69 #define PYGLIB_PyLong_AS_LONG PyInt_AS_LONG
  70 #define Py_TYPE(ob) (((PyObject*)(ob))->ob_type)
  71
  72 #define PYGLIB_Py_hash_t long
  73
  74 /* Python 2.7 lacks a PyInt_FromUnsignedLong function; use signed longs, and
  75  * rely on PyInt_AsUnsignedLong() to interpret them correctly */
  76 #define PYGLIB_PyLong_FromUnsignedLong PyInt_FromLong
  77 #define PYGLIB_PyLong_AsUnsignedLong(o) PyInt_AsUnsignedLongMask((PyObject*)(o))
  78
  79 #define PYGLIB_PyNumber_Long PyNumber_Int
  80
  81 #ifndef PyVarObject_HEAD_INIT
  82 #define PyVarObject_HEAD_INIT(base, size) \
  83   PyObject_HEAD_INIT(base) \
  84   size,
  85 #endif
  86
  87 #define PYGLIB_MODULE_START(symbol, modname)            \
  88 PyObject * pyglib_##symbol##_module_create(void);       \
  89 DL_EXPORT(void) init##symbol(void);                     \
  90 DL_EXPORT(void) init##symbol(void) {                    \
  91     pyglib_##symbol##_module_create();                  \
  92 };                                                      \
  93 PyObject * pyglib_##symbol##_module_create(void)        \
  94 {                                                       \
  95     PyObject *module;                                   \
  96     module = Py_InitModule(modname, symbol##_functions);
  97
  98 #define PYGLIB_MODULE_END return module; }
  99
 100 #define PYGLIB_DEFINE_TYPE(typename, symbol, csymbol)   \
 101 PyTypeObject symbol = {                                 \
 102     PyObject_HEAD_INIT(NULL)                            \
 103     0,                                                  \
 104     typename,                                           \
 105     sizeof(csymbol),                                    \
 106     0,                                                  \
 107 };
 108
 109 #define PYGLIB_REGISTER_TYPE(d, type, name)             \
 110     if (!type.tp_alloc)                                 \
 111         type.tp_alloc = PyType_GenericAlloc;            \
 112     if (!type.tp_new)                                   \
 113         type.tp_new = PyType_GenericNew;                \
 114     if (PyType_Ready(&type))                            \
 115         return;                                         \
 116     PyDict_SetItemString(d, name, (PyObject *)&type);
 117
 118 #else
 119
 120 #define PYGLIB_MODULE_START(symbol, modname)            \
 121     static struct PyModuleDef _##symbol##module = {     \
 122     PyModuleDef_HEAD_INIT,                              \
 123     modname,                                            \
 124     NULL,                                               \
 125     -1,                                                 \
 126     symbol##_functions,                                 \
 127     NULL,                                               \
 128     NULL,                                               \
 129     NULL,                                               \
 130     NULL                                                \
 131 };                                                      \
 132 PyObject * pyglib_##symbol##_module_create(void);       \
 133 PyMODINIT_FUNC PyInit_##symbol(void);                   \
 134 PyMODINIT_FUNC PyInit_##symbol(void) {                  \
 135     return pyglib_##symbol##_module_create();           \
 136 };                                                      \
 137 PyObject * pyglib_##symbol##_module_create(void)        \
 138 {                                                       \
 139     PyObject *module;                                   \
 140     module = PyModule_Create(&_##symbol##module);
 141
 142 #define PYGLIB_MODULE_END return module; }
 143
 144 #define PYGLIB_DEFINE_TYPE(typename, symbol, csymbol)   \
 145 PyTypeObject symbol = {                                 \
 146     PyVarObject_HEAD_INIT(NULL, 0)                      \
 147     typename,                                           \
 148     sizeof(csymbol)                                     \
 149 };
 150
 151 #define PYGLIB_REGISTER_TYPE(d, type, name)                 \
 152     if (!type.tp_alloc)                                 \
 153             type.tp_alloc = PyType_GenericAlloc;            \
 154     if (!type.tp_new)                                   \
 155             type.tp_new = PyType_GenericNew;                \
 156     if (PyType_Ready(&type))                            \
 157             return;                                         \
 158     PyDict_SetItemString(d, name, (PyObject *)&type);
 159
 160 #define PYGLIB_PyBaseString_Check PyUnicode_Check
 161
 162 #define PYGLIB_PyUnicode_Check PyUnicode_Check
 163 #define PYGLIB_PyUnicode_AsString _PyUnicode_AsString
 164 #define PYGLIB_PyUnicode_AsStringAndSize(obj, buf, size) \
 165     (((*(buf) = _PyUnicode_AsStringAndSize(obj, size)) != NULL) ? 0 : -1)
 166 #define PYGLIB_PyUnicode_FromString PyUnicode_FromString
 167 #define PYGLIB_PyUnicode_FromStringAndSize PyUnicode_FromStringAndSize
 168 #define PYGLIB_PyUnicode_FromFormat PyUnicode_FromFormat
 169 #define PYGLIB_PyUnicode_GET_SIZE PyUnicode_GET_SIZE
 170 #define PYGLIB_PyUnicode_Resize PyUnicode_Resize
 171 #define PYGLIB_PyUnicode_Type PyUnicode_Type
 172 #define PYGLIB_PyUnicode_InternFromString PyUnicode_InternFromString
 173 #define PYGLIB_PyUnicode_InternInPlace PyUnicode_InternInPlace
 174 #define PYGLIB_PyUnicode_Format PyUnicode_Format
 175
 176 #define PYGLIB_PyLong_Check PyLong_Check
 177 #define PYGLIB_PyLong_FromLong PyLong_FromLong
 178 #define PYGLIB_PyLong_FromSsize_t PyLong_FromSsize_t
 179 #define PYGLIB_PyLong_FromSize_t PyLong_FromSize_t
 180 #define PYGLIB_PyLong_AsLong PyLong_AsLong
 181 #define PYGLIB_PyLong_AsSsize_t PyLong_AsSsize_t
 182 #define PYGLIB_PyLong_AS_LONG(o) PyLong_AS_LONG((PyObject*)(o))
 183 #define PYGLIB_PyLongObject PyLongObject
 184 #define PYGLIB_PyLong_Type PyLong_Type
 185
 186 #define PYGLIB_PyLong_FromUnsignedLong PyLong_FromUnsignedLong
 187 #define PYGLIB_PyLong_AsUnsignedLong(o) PyLong_AsUnsignedLongMask((PyObject*)(o))
 188
 189 #define PYGLIB_PyBytes_FromString PyBytes_FromString
 190 #define PYGLIB_PyBytes_FromStringAndSize PyBytes_FromStringAndSize
 191 #define PYGLIB_PyBytes_Resize(o, len) _PyBytes_Resize(o, len)
 192 #define PYGLIB_PyBytes_AsString PyBytes_AsString
 193 #define PYGLIB_PyBytes_AsStringAndSize PyBytes_AsStringAndSize
 194 #define PYGLIB_PyBytes_Size PyBytes_Size
 195 #define PYGLIB_PyBytes_Check PyBytes_Check
 196
 197 #define PYGLIB_PyNumber_Long PyNumber_Long
 198
 199 #define PYGLIB_Py_hash_t Py_hash_t
 200
 201 #endif
 202
 203 #define PYGLIB_Py_hash_t_FromVoidPtr(ptr) ((PYGLIB_Py_hash_t)(gintptr)(ptr))
 204
 205 #endif /* __PYGLIB_PYTHON_COMPAT_H__ */