Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1 | /* Abstract Object Interface (many thanks to Jim Fulton) */ |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 2 | |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 3 | #include "Python.h" |
Guido van Rossum | fa0b6ab | 1998-05-22 15:23:36 +0000 | [diff] [blame] | 4 | #include <ctype.h> |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 5 | #include "structmember.h" /* we need the offsetof() macro from there */ |
Tim Peters | 64b5ce3 | 2001-09-10 20:52:51 +0000 | [diff] [blame] | 6 | #include "longintrepr.h" |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 7 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 8 | |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 9 | |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 10 | /* Shorthands to return certain errors */ |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 11 | |
| 12 | static PyObject * |
Thomas Wouters | 0e3f591 | 2006-08-11 14:57:12 +0000 | [diff] [blame] | 13 | type_error(const char *msg, PyObject *obj) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 14 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 15 | PyErr_Format(PyExc_TypeError, msg, obj->ob_type->tp_name); |
| 16 | return NULL; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 17 | } |
| 18 | |
Guido van Rossum | 052b7e1 | 1996-11-11 15:08:19 +0000 | [diff] [blame] | 19 | static PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 20 | null_error(void) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 21 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 22 | if (!PyErr_Occurred()) |
| 23 | PyErr_SetString(PyExc_SystemError, |
| 24 | "null argument to internal routine"); |
| 25 | return NULL; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 26 | } |
| 27 | |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 28 | /* Operations on any object */ |
| 29 | |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 30 | PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 31 | PyObject_Type(PyObject *o) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 32 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 33 | PyObject *v; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 34 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 35 | if (o == NULL) |
| 36 | return null_error(); |
| 37 | v = (PyObject *)o->ob_type; |
| 38 | Py_INCREF(v); |
| 39 | return v; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 40 | } |
| 41 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 42 | Py_ssize_t |
Jeremy Hylton | 6253f83 | 2000-07-12 12:56:19 +0000 | [diff] [blame] | 43 | PyObject_Size(PyObject *o) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 44 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 45 | PySequenceMethods *m; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 46 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 47 | if (o == NULL) { |
| 48 | null_error(); |
| 49 | return -1; |
| 50 | } |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 51 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 52 | m = o->ob_type->tp_as_sequence; |
| 53 | if (m && m->sq_length) |
| 54 | return m->sq_length(o); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 55 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 56 | return PyMapping_Size(o); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 57 | } |
| 58 | |
Marc-André Lemburg | cf5f358 | 2000-07-17 09:22:55 +0000 | [diff] [blame] | 59 | #undef PyObject_Length |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 60 | Py_ssize_t |
Marc-André Lemburg | cf5f358 | 2000-07-17 09:22:55 +0000 | [diff] [blame] | 61 | PyObject_Length(PyObject *o) |
| 62 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 63 | return PyObject_Size(o); |
Marc-André Lemburg | cf5f358 | 2000-07-17 09:22:55 +0000 | [diff] [blame] | 64 | } |
| 65 | #define PyObject_Length PyObject_Size |
| 66 | |
Raymond Hettinger | 6b27cda | 2005-09-24 21:23:05 +0000 | [diff] [blame] | 67 | |
Christian Heimes | 255f53b | 2007-12-08 15:33:56 +0000 | [diff] [blame] | 68 | /* The length hint function returns a non-negative value from o.__len__() |
| 69 | or o.__length_hint__(). If those methods aren't found or return a negative |
Raymond Hettinger | e836423 | 2009-02-02 22:55:09 +0000 | [diff] [blame] | 70 | value, then the defaultvalue is returned. If one of the calls fails, |
| 71 | this function returns -1. |
Christian Heimes | 255f53b | 2007-12-08 15:33:56 +0000 | [diff] [blame] | 72 | */ |
| 73 | |
| 74 | Py_ssize_t |
| 75 | _PyObject_LengthHint(PyObject *o, Py_ssize_t defaultvalue) |
| 76 | { |
Benjamin Peterson | ce79852 | 2012-01-22 11:24:29 -0500 | [diff] [blame] | 77 | _Py_IDENTIFIER(__length_hint__); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 78 | PyObject *ro, *hintmeth; |
| 79 | Py_ssize_t rv; |
Christian Heimes | 255f53b | 2007-12-08 15:33:56 +0000 | [diff] [blame] | 80 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 81 | /* try o.__len__() */ |
| 82 | rv = PyObject_Size(o); |
| 83 | if (rv >= 0) |
| 84 | return rv; |
| 85 | if (PyErr_Occurred()) { |
| 86 | if (!PyErr_ExceptionMatches(PyExc_TypeError)) |
| 87 | return -1; |
| 88 | PyErr_Clear(); |
| 89 | } |
Christian Heimes | 255f53b | 2007-12-08 15:33:56 +0000 | [diff] [blame] | 90 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 91 | /* try o.__length_hint__() */ |
Benjamin Peterson | ce79852 | 2012-01-22 11:24:29 -0500 | [diff] [blame] | 92 | hintmeth = _PyObject_LookupSpecial(o, &PyId___length_hint__); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 93 | if (hintmeth == NULL) { |
| 94 | if (PyErr_Occurred()) |
| 95 | return -1; |
| 96 | else |
| 97 | return defaultvalue; |
| 98 | } |
| 99 | ro = PyObject_CallFunctionObjArgs(hintmeth, NULL); |
| 100 | Py_DECREF(hintmeth); |
| 101 | if (ro == NULL) { |
| 102 | if (!PyErr_ExceptionMatches(PyExc_TypeError)) |
| 103 | return -1; |
| 104 | PyErr_Clear(); |
| 105 | return defaultvalue; |
| 106 | } |
| 107 | rv = PyLong_Check(ro) ? PyLong_AsSsize_t(ro) : defaultvalue; |
| 108 | Py_DECREF(ro); |
| 109 | return rv; |
Raymond Hettinger | 6b27cda | 2005-09-24 21:23:05 +0000 | [diff] [blame] | 110 | } |
| 111 | |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 112 | PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 113 | PyObject_GetItem(PyObject *o, PyObject *key) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 114 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 115 | PyMappingMethods *m; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 116 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 117 | if (o == NULL || key == NULL) |
| 118 | return null_error(); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 119 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 120 | m = o->ob_type->tp_as_mapping; |
| 121 | if (m && m->mp_subscript) |
| 122 | return m->mp_subscript(o, key); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 123 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 124 | if (o->ob_type->tp_as_sequence) { |
| 125 | if (PyIndex_Check(key)) { |
| 126 | Py_ssize_t key_value; |
| 127 | key_value = PyNumber_AsSsize_t(key, PyExc_IndexError); |
| 128 | if (key_value == -1 && PyErr_Occurred()) |
| 129 | return NULL; |
| 130 | return PySequence_GetItem(o, key_value); |
| 131 | } |
| 132 | else if (o->ob_type->tp_as_sequence->sq_item) |
| 133 | return type_error("sequence index must " |
| 134 | "be integer, not '%.200s'", key); |
| 135 | } |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 136 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 137 | return type_error("'%.200s' object is not subscriptable", o); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 138 | } |
| 139 | |
| 140 | int |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 141 | PyObject_SetItem(PyObject *o, PyObject *key, PyObject *value) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 142 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 143 | PyMappingMethods *m; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 144 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 145 | if (o == NULL || key == NULL || value == NULL) { |
| 146 | null_error(); |
| 147 | return -1; |
| 148 | } |
| 149 | m = o->ob_type->tp_as_mapping; |
| 150 | if (m && m->mp_ass_subscript) |
| 151 | return m->mp_ass_subscript(o, key, value); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 152 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 153 | if (o->ob_type->tp_as_sequence) { |
| 154 | if (PyIndex_Check(key)) { |
| 155 | Py_ssize_t key_value; |
| 156 | key_value = PyNumber_AsSsize_t(key, PyExc_IndexError); |
| 157 | if (key_value == -1 && PyErr_Occurred()) |
| 158 | return -1; |
| 159 | return PySequence_SetItem(o, key_value, value); |
| 160 | } |
| 161 | else if (o->ob_type->tp_as_sequence->sq_ass_item) { |
| 162 | type_error("sequence index must be " |
| 163 | "integer, not '%.200s'", key); |
| 164 | return -1; |
| 165 | } |
| 166 | } |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 167 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 168 | type_error("'%.200s' object does not support item assignment", o); |
| 169 | return -1; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 170 | } |
| 171 | |
Guido van Rossum | 6cdc6f4 | 1996-08-21 17:41:54 +0000 | [diff] [blame] | 172 | int |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 173 | PyObject_DelItem(PyObject *o, PyObject *key) |
Guido van Rossum | 6cdc6f4 | 1996-08-21 17:41:54 +0000 | [diff] [blame] | 174 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 175 | PyMappingMethods *m; |
Guido van Rossum | 6cdc6f4 | 1996-08-21 17:41:54 +0000 | [diff] [blame] | 176 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 177 | if (o == NULL || key == NULL) { |
| 178 | null_error(); |
| 179 | return -1; |
| 180 | } |
| 181 | m = o->ob_type->tp_as_mapping; |
| 182 | if (m && m->mp_ass_subscript) |
| 183 | return m->mp_ass_subscript(o, key, (PyObject*)NULL); |
Guido van Rossum | 6cdc6f4 | 1996-08-21 17:41:54 +0000 | [diff] [blame] | 184 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 185 | if (o->ob_type->tp_as_sequence) { |
| 186 | if (PyIndex_Check(key)) { |
| 187 | Py_ssize_t key_value; |
| 188 | key_value = PyNumber_AsSsize_t(key, PyExc_IndexError); |
| 189 | if (key_value == -1 && PyErr_Occurred()) |
| 190 | return -1; |
| 191 | return PySequence_DelItem(o, key_value); |
| 192 | } |
| 193 | else if (o->ob_type->tp_as_sequence->sq_ass_item) { |
| 194 | type_error("sequence index must be " |
| 195 | "integer, not '%.200s'", key); |
| 196 | return -1; |
| 197 | } |
| 198 | } |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 199 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 200 | type_error("'%.200s' object does not support item deletion", o); |
| 201 | return -1; |
Guido van Rossum | 6cdc6f4 | 1996-08-21 17:41:54 +0000 | [diff] [blame] | 202 | } |
| 203 | |
Martin v. Löwis | b0d71d0 | 2002-01-05 10:50:30 +0000 | [diff] [blame] | 204 | int |
| 205 | PyObject_DelItemString(PyObject *o, char *key) |
| 206 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 207 | PyObject *okey; |
| 208 | int ret; |
Martin v. Löwis | b0d71d0 | 2002-01-05 10:50:30 +0000 | [diff] [blame] | 209 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 210 | if (o == NULL || key == NULL) { |
| 211 | null_error(); |
| 212 | return -1; |
| 213 | } |
| 214 | okey = PyUnicode_FromString(key); |
| 215 | if (okey == NULL) |
| 216 | return -1; |
| 217 | ret = PyObject_DelItem(o, okey); |
| 218 | Py_DECREF(okey); |
| 219 | return ret; |
Martin v. Löwis | b0d71d0 | 2002-01-05 10:50:30 +0000 | [diff] [blame] | 220 | } |
| 221 | |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 222 | /* We release the buffer right after use of this function which could |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 223 | cause issues later on. Don't use these functions in new code. |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 224 | */ |
Thomas Wouters | 73e5a5b | 2006-06-08 15:35:45 +0000 | [diff] [blame] | 225 | int |
| 226 | PyObject_AsCharBuffer(PyObject *obj, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 227 | const char **buffer, |
| 228 | Py_ssize_t *buffer_len) |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 229 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 230 | PyBufferProcs *pb; |
| 231 | Py_buffer view; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 232 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 233 | if (obj == NULL || buffer == NULL || buffer_len == NULL) { |
| 234 | null_error(); |
| 235 | return -1; |
| 236 | } |
| 237 | pb = obj->ob_type->tp_as_buffer; |
| 238 | if (pb == NULL || pb->bf_getbuffer == NULL) { |
| 239 | PyErr_SetString(PyExc_TypeError, |
Victor Stinner | f2a9421 | 2011-05-30 23:21:30 +0200 | [diff] [blame] | 240 | "expected bytes, bytearray " |
| 241 | "or buffer compatible object"); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 242 | return -1; |
| 243 | } |
| 244 | if ((*pb->bf_getbuffer)(obj, &view, PyBUF_SIMPLE)) return -1; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 245 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 246 | *buffer = view.buf; |
| 247 | *buffer_len = view.len; |
| 248 | if (pb->bf_releasebuffer != NULL) |
| 249 | (*pb->bf_releasebuffer)(obj, &view); |
| 250 | Py_XDECREF(view.obj); |
| 251 | return 0; |
Jeremy Hylton | 89c3a22 | 2001-11-09 21:59:42 +0000 | [diff] [blame] | 252 | } |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 253 | |
Jeremy Hylton | 89c3a22 | 2001-11-09 21:59:42 +0000 | [diff] [blame] | 254 | int |
| 255 | PyObject_CheckReadBuffer(PyObject *obj) |
| 256 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 257 | PyBufferProcs *pb = obj->ob_type->tp_as_buffer; |
| 258 | Py_buffer view; |
Jeremy Hylton | 89c3a22 | 2001-11-09 21:59:42 +0000 | [diff] [blame] | 259 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 260 | if (pb == NULL || |
| 261 | pb->bf_getbuffer == NULL) |
| 262 | return 0; |
| 263 | if ((*pb->bf_getbuffer)(obj, &view, PyBUF_SIMPLE) == -1) { |
| 264 | PyErr_Clear(); |
| 265 | return 0; |
| 266 | } |
| 267 | PyBuffer_Release(&view); |
| 268 | return 1; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 269 | } |
| 270 | |
| 271 | int PyObject_AsReadBuffer(PyObject *obj, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 272 | const void **buffer, |
| 273 | Py_ssize_t *buffer_len) |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 274 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 275 | PyBufferProcs *pb; |
| 276 | Py_buffer view; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 277 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 278 | if (obj == NULL || buffer == NULL || buffer_len == NULL) { |
| 279 | null_error(); |
| 280 | return -1; |
| 281 | } |
| 282 | pb = obj->ob_type->tp_as_buffer; |
| 283 | if (pb == NULL || |
| 284 | pb->bf_getbuffer == NULL) { |
| 285 | PyErr_SetString(PyExc_TypeError, |
| 286 | "expected an object with a buffer interface"); |
| 287 | return -1; |
| 288 | } |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 289 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 290 | if ((*pb->bf_getbuffer)(obj, &view, PyBUF_SIMPLE)) return -1; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 291 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 292 | *buffer = view.buf; |
| 293 | *buffer_len = view.len; |
| 294 | if (pb->bf_releasebuffer != NULL) |
| 295 | (*pb->bf_releasebuffer)(obj, &view); |
| 296 | Py_XDECREF(view.obj); |
| 297 | return 0; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 298 | } |
| 299 | |
| 300 | int PyObject_AsWriteBuffer(PyObject *obj, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 301 | void **buffer, |
| 302 | Py_ssize_t *buffer_len) |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 303 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 304 | PyBufferProcs *pb; |
| 305 | Py_buffer view; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 306 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 307 | if (obj == NULL || buffer == NULL || buffer_len == NULL) { |
| 308 | null_error(); |
| 309 | return -1; |
| 310 | } |
| 311 | pb = obj->ob_type->tp_as_buffer; |
| 312 | if (pb == NULL || |
| 313 | pb->bf_getbuffer == NULL || |
| 314 | ((*pb->bf_getbuffer)(obj, &view, PyBUF_WRITABLE) != 0)) { |
| 315 | PyErr_SetString(PyExc_TypeError, |
| 316 | "expected an object with a writable buffer interface"); |
| 317 | return -1; |
| 318 | } |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 319 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 320 | *buffer = view.buf; |
| 321 | *buffer_len = view.len; |
| 322 | if (pb->bf_releasebuffer != NULL) |
| 323 | (*pb->bf_releasebuffer)(obj, &view); |
| 324 | Py_XDECREF(view.obj); |
| 325 | return 0; |
Guido van Rossum | 4c08d55 | 2000-03-10 22:55:18 +0000 | [diff] [blame] | 326 | } |
| 327 | |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 328 | /* Buffer C-API for Python 3.0 */ |
| 329 | |
| 330 | int |
Travis E. Oliphant | 8ae62b6 | 2007-09-23 02:00:13 +0000 | [diff] [blame] | 331 | PyObject_GetBuffer(PyObject *obj, Py_buffer *view, int flags) |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 332 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 333 | if (!PyObject_CheckBuffer(obj)) { |
| 334 | PyErr_Format(PyExc_TypeError, |
Victor Stinner | 0a5f65a | 2011-03-22 01:09:21 +0100 | [diff] [blame] | 335 | "'%.100s' does not support the buffer interface", |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 336 | Py_TYPE(obj)->tp_name); |
| 337 | return -1; |
| 338 | } |
| 339 | return (*(obj->ob_type->tp_as_buffer->bf_getbuffer))(obj, view, flags); |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 340 | } |
| 341 | |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 342 | static int |
Stefan Krah | 9a2d99e | 2012-02-25 12:24:21 +0100 | [diff] [blame] | 343 | _IsFortranContiguous(const Py_buffer *view) |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 344 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 345 | Py_ssize_t sd, dim; |
| 346 | int i; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 347 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 348 | if (view->ndim == 0) return 1; |
| 349 | if (view->strides == NULL) return (view->ndim == 1); |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 350 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 351 | sd = view->itemsize; |
| 352 | if (view->ndim == 1) return (view->shape[0] == 1 || |
| 353 | sd == view->strides[0]); |
| 354 | for (i=0; i<view->ndim; i++) { |
| 355 | dim = view->shape[i]; |
| 356 | if (dim == 0) return 1; |
| 357 | if (view->strides[i] != sd) return 0; |
| 358 | sd *= dim; |
| 359 | } |
| 360 | return 1; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 361 | } |
| 362 | |
| 363 | static int |
Stefan Krah | 9a2d99e | 2012-02-25 12:24:21 +0100 | [diff] [blame] | 364 | _IsCContiguous(const Py_buffer *view) |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 365 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 366 | Py_ssize_t sd, dim; |
| 367 | int i; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 368 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 369 | if (view->ndim == 0) return 1; |
| 370 | if (view->strides == NULL) return 1; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 371 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 372 | sd = view->itemsize; |
| 373 | if (view->ndim == 1) return (view->shape[0] == 1 || |
| 374 | sd == view->strides[0]); |
| 375 | for (i=view->ndim-1; i>=0; i--) { |
| 376 | dim = view->shape[i]; |
| 377 | if (dim == 0) return 1; |
| 378 | if (view->strides[i] != sd) return 0; |
| 379 | sd *= dim; |
| 380 | } |
| 381 | return 1; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 382 | } |
| 383 | |
| 384 | int |
Stefan Krah | 9a2d99e | 2012-02-25 12:24:21 +0100 | [diff] [blame] | 385 | PyBuffer_IsContiguous(const Py_buffer *view, char order) |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 386 | { |
| 387 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 388 | if (view->suboffsets != NULL) return 0; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 389 | |
Stefan Krah | 9a2d99e | 2012-02-25 12:24:21 +0100 | [diff] [blame] | 390 | if (order == 'C') |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 391 | return _IsCContiguous(view); |
Stefan Krah | 9a2d99e | 2012-02-25 12:24:21 +0100 | [diff] [blame] | 392 | else if (order == 'F') |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 393 | return _IsFortranContiguous(view); |
Stefan Krah | 9a2d99e | 2012-02-25 12:24:21 +0100 | [diff] [blame] | 394 | else if (order == 'A') |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 395 | return (_IsCContiguous(view) || _IsFortranContiguous(view)); |
| 396 | return 0; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 397 | } |
| 398 | |
| 399 | |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 400 | void* |
Travis E. Oliphant | 8ae62b6 | 2007-09-23 02:00:13 +0000 | [diff] [blame] | 401 | PyBuffer_GetPointer(Py_buffer *view, Py_ssize_t *indices) |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 402 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 403 | char* pointer; |
| 404 | int i; |
| 405 | pointer = (char *)view->buf; |
| 406 | for (i = 0; i < view->ndim; i++) { |
| 407 | pointer += view->strides[i]*indices[i]; |
| 408 | if ((view->suboffsets != NULL) && (view->suboffsets[i] >= 0)) { |
| 409 | pointer = *((char**)pointer) + view->suboffsets[i]; |
| 410 | } |
| 411 | } |
| 412 | return (void*)pointer; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 413 | } |
| 414 | |
| 415 | |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 416 | void |
Antoine Pitrou | f68c2a7 | 2010-09-01 12:58:21 +0000 | [diff] [blame] | 417 | _Py_add_one_to_index_F(int nd, Py_ssize_t *index, const Py_ssize_t *shape) |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 418 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 419 | int k; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 420 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 421 | for (k=0; k<nd; k++) { |
| 422 | if (index[k] < shape[k]-1) { |
| 423 | index[k]++; |
| 424 | break; |
| 425 | } |
| 426 | else { |
| 427 | index[k] = 0; |
| 428 | } |
| 429 | } |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 430 | } |
| 431 | |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 432 | void |
Antoine Pitrou | f68c2a7 | 2010-09-01 12:58:21 +0000 | [diff] [blame] | 433 | _Py_add_one_to_index_C(int nd, Py_ssize_t *index, const Py_ssize_t *shape) |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 434 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 435 | int k; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 436 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 437 | for (k=nd-1; k>=0; k--) { |
| 438 | if (index[k] < shape[k]-1) { |
| 439 | index[k]++; |
| 440 | break; |
| 441 | } |
| 442 | else { |
| 443 | index[k] = 0; |
| 444 | } |
| 445 | } |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 446 | } |
| 447 | |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 448 | int |
Travis E. Oliphant | 8ae62b6 | 2007-09-23 02:00:13 +0000 | [diff] [blame] | 449 | PyBuffer_FromContiguous(Py_buffer *view, void *buf, Py_ssize_t len, char fort) |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 450 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 451 | int k; |
Antoine Pitrou | f68c2a7 | 2010-09-01 12:58:21 +0000 | [diff] [blame] | 452 | void (*addone)(int, Py_ssize_t *, const Py_ssize_t *); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 453 | Py_ssize_t *indices, elements; |
| 454 | char *src, *ptr; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 455 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 456 | if (len > view->len) { |
| 457 | len = view->len; |
| 458 | } |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 459 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 460 | if (PyBuffer_IsContiguous(view, fort)) { |
| 461 | /* simplest copy is all that is needed */ |
| 462 | memcpy(view->buf, buf, len); |
| 463 | return 0; |
| 464 | } |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 465 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 466 | /* Otherwise a more elaborate scheme is needed */ |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 467 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 468 | /* XXX(nnorwitz): need to check for overflow! */ |
| 469 | indices = (Py_ssize_t *)PyMem_Malloc(sizeof(Py_ssize_t)*(view->ndim)); |
| 470 | if (indices == NULL) { |
| 471 | PyErr_NoMemory(); |
| 472 | return -1; |
| 473 | } |
| 474 | for (k=0; k<view->ndim;k++) { |
| 475 | indices[k] = 0; |
| 476 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 477 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 478 | if (fort == 'F') { |
Antoine Pitrou | f68c2a7 | 2010-09-01 12:58:21 +0000 | [diff] [blame] | 479 | addone = _Py_add_one_to_index_F; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 480 | } |
| 481 | else { |
Antoine Pitrou | f68c2a7 | 2010-09-01 12:58:21 +0000 | [diff] [blame] | 482 | addone = _Py_add_one_to_index_C; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 483 | } |
| 484 | src = buf; |
| 485 | /* XXX : This is not going to be the fastest code in the world |
| 486 | several optimizations are possible. |
| 487 | */ |
| 488 | elements = len / view->itemsize; |
| 489 | while (elements--) { |
| 490 | addone(view->ndim, indices, view->shape); |
| 491 | ptr = PyBuffer_GetPointer(view, indices); |
| 492 | memcpy(ptr, src, view->itemsize); |
| 493 | src += view->itemsize; |
| 494 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 495 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 496 | PyMem_Free(indices); |
| 497 | return 0; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 498 | } |
| 499 | |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 500 | int PyObject_CopyData(PyObject *dest, PyObject *src) |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 501 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 502 | Py_buffer view_dest, view_src; |
| 503 | int k; |
| 504 | Py_ssize_t *indices, elements; |
| 505 | char *dptr, *sptr; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 506 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 507 | if (!PyObject_CheckBuffer(dest) || |
| 508 | !PyObject_CheckBuffer(src)) { |
| 509 | PyErr_SetString(PyExc_TypeError, |
| 510 | "both destination and source must have the "\ |
| 511 | "buffer interface"); |
| 512 | return -1; |
| 513 | } |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 514 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 515 | if (PyObject_GetBuffer(dest, &view_dest, PyBUF_FULL) != 0) return -1; |
| 516 | if (PyObject_GetBuffer(src, &view_src, PyBUF_FULL_RO) != 0) { |
| 517 | PyBuffer_Release(&view_dest); |
| 518 | return -1; |
| 519 | } |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 520 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 521 | if (view_dest.len < view_src.len) { |
| 522 | PyErr_SetString(PyExc_BufferError, |
| 523 | "destination is too small to receive data from source"); |
| 524 | PyBuffer_Release(&view_dest); |
| 525 | PyBuffer_Release(&view_src); |
| 526 | return -1; |
| 527 | } |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 528 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 529 | if ((PyBuffer_IsContiguous(&view_dest, 'C') && |
| 530 | PyBuffer_IsContiguous(&view_src, 'C')) || |
| 531 | (PyBuffer_IsContiguous(&view_dest, 'F') && |
| 532 | PyBuffer_IsContiguous(&view_src, 'F'))) { |
| 533 | /* simplest copy is all that is needed */ |
| 534 | memcpy(view_dest.buf, view_src.buf, view_src.len); |
| 535 | PyBuffer_Release(&view_dest); |
| 536 | PyBuffer_Release(&view_src); |
| 537 | return 0; |
| 538 | } |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 539 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 540 | /* Otherwise a more elaborate copy scheme is needed */ |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 541 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 542 | /* XXX(nnorwitz): need to check for overflow! */ |
| 543 | indices = (Py_ssize_t *)PyMem_Malloc(sizeof(Py_ssize_t)*view_src.ndim); |
| 544 | if (indices == NULL) { |
| 545 | PyErr_NoMemory(); |
| 546 | PyBuffer_Release(&view_dest); |
| 547 | PyBuffer_Release(&view_src); |
| 548 | return -1; |
| 549 | } |
| 550 | for (k=0; k<view_src.ndim;k++) { |
| 551 | indices[k] = 0; |
| 552 | } |
| 553 | elements = 1; |
| 554 | for (k=0; k<view_src.ndim; k++) { |
| 555 | /* XXX(nnorwitz): can this overflow? */ |
| 556 | elements *= view_src.shape[k]; |
| 557 | } |
| 558 | while (elements--) { |
Antoine Pitrou | f68c2a7 | 2010-09-01 12:58:21 +0000 | [diff] [blame] | 559 | _Py_add_one_to_index_C(view_src.ndim, indices, view_src.shape); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 560 | dptr = PyBuffer_GetPointer(&view_dest, indices); |
| 561 | sptr = PyBuffer_GetPointer(&view_src, indices); |
| 562 | memcpy(dptr, sptr, view_src.itemsize); |
| 563 | } |
| 564 | PyMem_Free(indices); |
| 565 | PyBuffer_Release(&view_dest); |
| 566 | PyBuffer_Release(&view_src); |
| 567 | return 0; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 568 | } |
| 569 | |
| 570 | void |
| 571 | PyBuffer_FillContiguousStrides(int nd, Py_ssize_t *shape, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 572 | Py_ssize_t *strides, int itemsize, |
| 573 | char fort) |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 574 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 575 | int k; |
| 576 | Py_ssize_t sd; |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 577 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 578 | sd = itemsize; |
| 579 | if (fort == 'F') { |
| 580 | for (k=0; k<nd; k++) { |
| 581 | strides[k] = sd; |
| 582 | sd *= shape[k]; |
| 583 | } |
| 584 | } |
| 585 | else { |
| 586 | for (k=nd-1; k>=0; k--) { |
| 587 | strides[k] = sd; |
| 588 | sd *= shape[k]; |
| 589 | } |
| 590 | } |
| 591 | return; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 592 | } |
| 593 | |
| 594 | int |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 595 | PyBuffer_FillInfo(Py_buffer *view, PyObject *obj, void *buf, Py_ssize_t len, |
Stefan Krah | 4e14174 | 2012-03-06 15:27:31 +0100 | [diff] [blame] | 596 | int readonly, int flags) |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 597 | { |
Stefan Krah | 9a2d99e | 2012-02-25 12:24:21 +0100 | [diff] [blame] | 598 | if (view == NULL) return 0; /* XXX why not -1? */ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 599 | if (((flags & PyBUF_WRITABLE) == PyBUF_WRITABLE) && |
| 600 | (readonly == 1)) { |
| 601 | PyErr_SetString(PyExc_BufferError, |
| 602 | "Object is not writable."); |
| 603 | return -1; |
| 604 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 605 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 606 | view->obj = obj; |
| 607 | if (obj) |
| 608 | Py_INCREF(obj); |
| 609 | view->buf = buf; |
| 610 | view->len = len; |
| 611 | view->readonly = readonly; |
| 612 | view->itemsize = 1; |
| 613 | view->format = NULL; |
| 614 | if ((flags & PyBUF_FORMAT) == PyBUF_FORMAT) |
| 615 | view->format = "B"; |
| 616 | view->ndim = 1; |
| 617 | view->shape = NULL; |
| 618 | if ((flags & PyBUF_ND) == PyBUF_ND) |
| 619 | view->shape = &(view->len); |
| 620 | view->strides = NULL; |
| 621 | if ((flags & PyBUF_STRIDES) == PyBUF_STRIDES) |
| 622 | view->strides = &(view->itemsize); |
| 623 | view->suboffsets = NULL; |
| 624 | view->internal = NULL; |
| 625 | return 0; |
Travis E. Oliphant | b99f762 | 2007-08-18 11:21:56 +0000 | [diff] [blame] | 626 | } |
| 627 | |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 628 | void |
| 629 | PyBuffer_Release(Py_buffer *view) |
| 630 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 631 | PyObject *obj = view->obj; |
| 632 | if (obj && Py_TYPE(obj)->tp_as_buffer && Py_TYPE(obj)->tp_as_buffer->bf_releasebuffer) |
| 633 | Py_TYPE(obj)->tp_as_buffer->bf_releasebuffer(obj, view); |
| 634 | Py_XDECREF(obj); |
| 635 | view->obj = NULL; |
Martin v. Löwis | 423be95 | 2008-08-13 15:53:07 +0000 | [diff] [blame] | 636 | } |
| 637 | |
Eric Smith | 8fd3eba | 2008-02-17 19:48:00 +0000 | [diff] [blame] | 638 | PyObject * |
| 639 | PyObject_Format(PyObject *obj, PyObject *format_spec) |
| 640 | { |
Eric Smith | 8fd3eba | 2008-02-17 19:48:00 +0000 | [diff] [blame] | 641 | PyObject *meth; |
| 642 | PyObject *empty = NULL; |
| 643 | PyObject *result = NULL; |
Benjamin Peterson | ce79852 | 2012-01-22 11:24:29 -0500 | [diff] [blame] | 644 | _Py_IDENTIFIER(__format__); |
Eric Smith | 8fd3eba | 2008-02-17 19:48:00 +0000 | [diff] [blame] | 645 | |
| 646 | /* If no format_spec is provided, use an empty string */ |
| 647 | if (format_spec == NULL) { |
Victor Stinner | 9d3b93b | 2011-11-22 02:27:30 +0100 | [diff] [blame] | 648 | empty = PyUnicode_New(0, 0); |
Benjamin Peterson | da2cf04 | 2010-06-05 00:45:37 +0000 | [diff] [blame] | 649 | format_spec = empty; |
Eric Smith | 8fd3eba | 2008-02-17 19:48:00 +0000 | [diff] [blame] | 650 | } |
| 651 | |
Eric Smith | 8fd3eba | 2008-02-17 19:48:00 +0000 | [diff] [blame] | 652 | /* Find the (unbound!) __format__ method (a borrowed reference) */ |
Benjamin Peterson | ce79852 | 2012-01-22 11:24:29 -0500 | [diff] [blame] | 653 | meth = _PyObject_LookupSpecial(obj, &PyId___format__); |
Eric Smith | 8fd3eba | 2008-02-17 19:48:00 +0000 | [diff] [blame] | 654 | if (meth == NULL) { |
Benjamin Peterson | da2cf04 | 2010-06-05 00:45:37 +0000 | [diff] [blame] | 655 | if (!PyErr_Occurred()) |
| 656 | PyErr_Format(PyExc_TypeError, |
| 657 | "Type %.100s doesn't define __format__", |
| 658 | Py_TYPE(obj)->tp_name); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 659 | goto done; |
Eric Smith | 8fd3eba | 2008-02-17 19:48:00 +0000 | [diff] [blame] | 660 | } |
| 661 | |
Benjamin Peterson | da2cf04 | 2010-06-05 00:45:37 +0000 | [diff] [blame] | 662 | /* And call it. */ |
| 663 | result = PyObject_CallFunctionObjArgs(meth, format_spec, NULL); |
Benjamin Peterson | 6f889ad3 | 2010-06-05 02:11:45 +0000 | [diff] [blame] | 664 | Py_DECREF(meth); |
Eric Smith | 8fd3eba | 2008-02-17 19:48:00 +0000 | [diff] [blame] | 665 | |
| 666 | if (result && !PyUnicode_Check(result)) { |
Benjamin Peterson | da2cf04 | 2010-06-05 00:45:37 +0000 | [diff] [blame] | 667 | PyErr_SetString(PyExc_TypeError, |
| 668 | "__format__ method did not return string"); |
| 669 | Py_DECREF(result); |
| 670 | result = NULL; |
| 671 | goto done; |
Eric Smith | 8fd3eba | 2008-02-17 19:48:00 +0000 | [diff] [blame] | 672 | } |
| 673 | |
| 674 | done: |
| 675 | Py_XDECREF(empty); |
| 676 | return result; |
| 677 | } |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 678 | /* Operations on numbers */ |
| 679 | |
| 680 | int |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 681 | PyNumber_Check(PyObject *o) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 682 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 683 | return o && o->ob_type->tp_as_number && |
| 684 | (o->ob_type->tp_as_number->nb_int || |
| 685 | o->ob_type->tp_as_number->nb_float); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 686 | } |
| 687 | |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 688 | /* Binary operators */ |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 689 | |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 690 | #define NB_SLOT(x) offsetof(PyNumberMethods, x) |
| 691 | #define NB_BINOP(nb_methods, slot) \ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 692 | (*(binaryfunc*)(& ((char*)nb_methods)[slot])) |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 693 | #define NB_TERNOP(nb_methods, slot) \ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 694 | (*(ternaryfunc*)(& ((char*)nb_methods)[slot])) |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 695 | |
| 696 | /* |
| 697 | Calling scheme used for binary operations: |
| 698 | |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 699 | Order operations are tried until either a valid result or error: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 700 | w.op(v,w)[*], v.op(v,w), w.op(v,w) |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 701 | |
Guido van Rossum | 4bb1e36 | 2001-09-28 23:49:48 +0000 | [diff] [blame] | 702 | [*] only when v->ob_type != w->ob_type && w->ob_type is a subclass of |
| 703 | v->ob_type |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 704 | */ |
| 705 | |
| 706 | static PyObject * |
| 707 | binary_op1(PyObject *v, PyObject *w, const int op_slot) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 708 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 709 | PyObject *x; |
| 710 | binaryfunc slotv = NULL; |
| 711 | binaryfunc slotw = NULL; |
Guido van Rossum | 4bb1e36 | 2001-09-28 23:49:48 +0000 | [diff] [blame] | 712 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 713 | if (v->ob_type->tp_as_number != NULL) |
| 714 | slotv = NB_BINOP(v->ob_type->tp_as_number, op_slot); |
| 715 | if (w->ob_type != v->ob_type && |
| 716 | w->ob_type->tp_as_number != NULL) { |
| 717 | slotw = NB_BINOP(w->ob_type->tp_as_number, op_slot); |
| 718 | if (slotw == slotv) |
| 719 | slotw = NULL; |
| 720 | } |
| 721 | if (slotv) { |
| 722 | if (slotw && PyType_IsSubtype(w->ob_type, v->ob_type)) { |
| 723 | x = slotw(v, w); |
| 724 | if (x != Py_NotImplemented) |
| 725 | return x; |
| 726 | Py_DECREF(x); /* can't do it */ |
| 727 | slotw = NULL; |
| 728 | } |
| 729 | x = slotv(v, w); |
| 730 | if (x != Py_NotImplemented) |
| 731 | return x; |
| 732 | Py_DECREF(x); /* can't do it */ |
| 733 | } |
| 734 | if (slotw) { |
| 735 | x = slotw(v, w); |
| 736 | if (x != Py_NotImplemented) |
| 737 | return x; |
| 738 | Py_DECREF(x); /* can't do it */ |
| 739 | } |
Brian Curtin | dfc80e3 | 2011-08-10 20:28:54 -0500 | [diff] [blame] | 740 | Py_RETURN_NOTIMPLEMENTED; |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 741 | } |
Guido van Rossum | 7766091 | 2002-04-16 16:32:50 +0000 | [diff] [blame] | 742 | |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 743 | static PyObject * |
Neil Schemenauer | d4b0fea | 2002-12-30 20:18:15 +0000 | [diff] [blame] | 744 | binop_type_error(PyObject *v, PyObject *w, const char *op_name) |
| 745 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 746 | PyErr_Format(PyExc_TypeError, |
| 747 | "unsupported operand type(s) for %.100s: " |
| 748 | "'%.100s' and '%.100s'", |
| 749 | op_name, |
| 750 | v->ob_type->tp_name, |
| 751 | w->ob_type->tp_name); |
| 752 | return NULL; |
Neil Schemenauer | d4b0fea | 2002-12-30 20:18:15 +0000 | [diff] [blame] | 753 | } |
| 754 | |
| 755 | static PyObject * |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 756 | binary_op(PyObject *v, PyObject *w, const int op_slot, const char *op_name) |
| 757 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 758 | PyObject *result = binary_op1(v, w, op_slot); |
| 759 | if (result == Py_NotImplemented) { |
| 760 | Py_DECREF(result); |
| 761 | return binop_type_error(v, w, op_name); |
| 762 | } |
| 763 | return result; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 764 | } |
| 765 | |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 766 | |
| 767 | /* |
| 768 | Calling scheme used for ternary operations: |
| 769 | |
Neal Norwitz | 4886cc3 | 2006-08-21 17:06:07 +0000 | [diff] [blame] | 770 | Order operations are tried until either a valid result or error: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 771 | v.op(v,w,z), w.op(v,w,z), z.op(v,w,z) |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 772 | */ |
| 773 | |
| 774 | static PyObject * |
| 775 | ternary_op(PyObject *v, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 776 | PyObject *w, |
| 777 | PyObject *z, |
| 778 | const int op_slot, |
| 779 | const char *op_name) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 780 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 781 | PyNumberMethods *mv, *mw, *mz; |
| 782 | PyObject *x = NULL; |
| 783 | ternaryfunc slotv = NULL; |
| 784 | ternaryfunc slotw = NULL; |
| 785 | ternaryfunc slotz = NULL; |
Guido van Rossum | 7766091 | 2002-04-16 16:32:50 +0000 | [diff] [blame] | 786 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 787 | mv = v->ob_type->tp_as_number; |
| 788 | mw = w->ob_type->tp_as_number; |
| 789 | if (mv != NULL) |
| 790 | slotv = NB_TERNOP(mv, op_slot); |
| 791 | if (w->ob_type != v->ob_type && |
| 792 | mw != NULL) { |
| 793 | slotw = NB_TERNOP(mw, op_slot); |
| 794 | if (slotw == slotv) |
| 795 | slotw = NULL; |
| 796 | } |
| 797 | if (slotv) { |
| 798 | if (slotw && PyType_IsSubtype(w->ob_type, v->ob_type)) { |
| 799 | x = slotw(v, w, z); |
| 800 | if (x != Py_NotImplemented) |
| 801 | return x; |
| 802 | Py_DECREF(x); /* can't do it */ |
| 803 | slotw = NULL; |
| 804 | } |
| 805 | x = slotv(v, w, z); |
| 806 | if (x != Py_NotImplemented) |
| 807 | return x; |
| 808 | Py_DECREF(x); /* can't do it */ |
| 809 | } |
| 810 | if (slotw) { |
| 811 | x = slotw(v, w, z); |
| 812 | if (x != Py_NotImplemented) |
| 813 | return x; |
| 814 | Py_DECREF(x); /* can't do it */ |
| 815 | } |
| 816 | mz = z->ob_type->tp_as_number; |
| 817 | if (mz != NULL) { |
| 818 | slotz = NB_TERNOP(mz, op_slot); |
| 819 | if (slotz == slotv || slotz == slotw) |
| 820 | slotz = NULL; |
| 821 | if (slotz) { |
| 822 | x = slotz(v, w, z); |
| 823 | if (x != Py_NotImplemented) |
| 824 | return x; |
| 825 | Py_DECREF(x); /* can't do it */ |
| 826 | } |
| 827 | } |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 828 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 829 | if (z == Py_None) |
| 830 | PyErr_Format( |
| 831 | PyExc_TypeError, |
| 832 | "unsupported operand type(s) for ** or pow(): " |
| 833 | "'%.100s' and '%.100s'", |
| 834 | v->ob_type->tp_name, |
| 835 | w->ob_type->tp_name); |
| 836 | else |
| 837 | PyErr_Format( |
| 838 | PyExc_TypeError, |
| 839 | "unsupported operand type(s) for pow(): " |
| 840 | "'%.100s', '%.100s', '%.100s'", |
| 841 | v->ob_type->tp_name, |
| 842 | w->ob_type->tp_name, |
| 843 | z->ob_type->tp_name); |
| 844 | return NULL; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 845 | } |
| 846 | |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 847 | #define BINARY_FUNC(func, op, op_name) \ |
| 848 | PyObject * \ |
| 849 | func(PyObject *v, PyObject *w) { \ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 850 | return binary_op(v, w, NB_SLOT(op), op_name); \ |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 851 | } |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 852 | |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 853 | BINARY_FUNC(PyNumber_Or, nb_or, "|") |
| 854 | BINARY_FUNC(PyNumber_Xor, nb_xor, "^") |
| 855 | BINARY_FUNC(PyNumber_And, nb_and, "&") |
| 856 | BINARY_FUNC(PyNumber_Lshift, nb_lshift, "<<") |
| 857 | BINARY_FUNC(PyNumber_Rshift, nb_rshift, ">>") |
| 858 | BINARY_FUNC(PyNumber_Subtract, nb_subtract, "-") |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 859 | BINARY_FUNC(PyNumber_Divmod, nb_divmod, "divmod()") |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 860 | |
| 861 | PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 862 | PyNumber_Add(PyObject *v, PyObject *w) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 863 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 864 | PyObject *result = binary_op1(v, w, NB_SLOT(nb_add)); |
| 865 | if (result == Py_NotImplemented) { |
| 866 | PySequenceMethods *m = v->ob_type->tp_as_sequence; |
| 867 | Py_DECREF(result); |
| 868 | if (m && m->sq_concat) { |
| 869 | return (*m->sq_concat)(v, w); |
| 870 | } |
| 871 | result = binop_type_error(v, w, "+"); |
| 872 | } |
| 873 | return result; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 874 | } |
| 875 | |
Neil Schemenauer | d4b0fea | 2002-12-30 20:18:15 +0000 | [diff] [blame] | 876 | static PyObject * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 877 | sequence_repeat(ssizeargfunc repeatfunc, PyObject *seq, PyObject *n) |
Neil Schemenauer | d4b0fea | 2002-12-30 20:18:15 +0000 | [diff] [blame] | 878 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 879 | Py_ssize_t count; |
| 880 | if (PyIndex_Check(n)) { |
| 881 | count = PyNumber_AsSsize_t(n, PyExc_OverflowError); |
| 882 | if (count == -1 && PyErr_Occurred()) |
| 883 | return NULL; |
| 884 | } |
| 885 | else { |
| 886 | return type_error("can't multiply sequence by " |
| 887 | "non-int of type '%.200s'", n); |
| 888 | } |
| 889 | return (*repeatfunc)(seq, count); |
Neil Schemenauer | d4b0fea | 2002-12-30 20:18:15 +0000 | [diff] [blame] | 890 | } |
| 891 | |
| 892 | PyObject * |
| 893 | PyNumber_Multiply(PyObject *v, PyObject *w) |
| 894 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 895 | PyObject *result = binary_op1(v, w, NB_SLOT(nb_multiply)); |
| 896 | if (result == Py_NotImplemented) { |
| 897 | PySequenceMethods *mv = v->ob_type->tp_as_sequence; |
| 898 | PySequenceMethods *mw = w->ob_type->tp_as_sequence; |
| 899 | Py_DECREF(result); |
| 900 | if (mv && mv->sq_repeat) { |
| 901 | return sequence_repeat(mv->sq_repeat, v, w); |
| 902 | } |
| 903 | else if (mw && mw->sq_repeat) { |
| 904 | return sequence_repeat(mw->sq_repeat, w, v); |
| 905 | } |
| 906 | result = binop_type_error(v, w, "*"); |
| 907 | } |
| 908 | return result; |
Neil Schemenauer | d4b0fea | 2002-12-30 20:18:15 +0000 | [diff] [blame] | 909 | } |
| 910 | |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 911 | PyObject * |
Guido van Rossum | 4668b00 | 2001-08-08 05:00:18 +0000 | [diff] [blame] | 912 | PyNumber_FloorDivide(PyObject *v, PyObject *w) |
| 913 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 914 | return binary_op(v, w, NB_SLOT(nb_floor_divide), "//"); |
Guido van Rossum | 4668b00 | 2001-08-08 05:00:18 +0000 | [diff] [blame] | 915 | } |
| 916 | |
| 917 | PyObject * |
| 918 | PyNumber_TrueDivide(PyObject *v, PyObject *w) |
| 919 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 920 | return binary_op(v, w, NB_SLOT(nb_true_divide), "/"); |
Guido van Rossum | 4668b00 | 2001-08-08 05:00:18 +0000 | [diff] [blame] | 921 | } |
| 922 | |
| 923 | PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 924 | PyNumber_Remainder(PyObject *v, PyObject *w) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 925 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 926 | return binary_op(v, w, NB_SLOT(nb_remainder), "%"); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 927 | } |
| 928 | |
| 929 | PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 930 | PyNumber_Power(PyObject *v, PyObject *w, PyObject *z) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 931 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 932 | return ternary_op(v, w, z, NB_SLOT(nb_power), "** or pow()"); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 933 | } |
| 934 | |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 935 | /* Binary in-place operators */ |
| 936 | |
| 937 | /* The in-place operators are defined to fall back to the 'normal', |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 938 | non in-place operations, if the in-place methods are not in place. |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 939 | |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 940 | - If the left hand object has the appropriate struct members, and |
| 941 | they are filled, call the appropriate function and return the |
| 942 | result. No coercion is done on the arguments; the left-hand object |
| 943 | is the one the operation is performed on, and it's up to the |
| 944 | function to deal with the right-hand object. |
Guido van Rossum | 7766091 | 2002-04-16 16:32:50 +0000 | [diff] [blame] | 945 | |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 946 | - Otherwise, in-place modification is not supported. Handle it exactly as |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 947 | a non in-place operation of the same kind. |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 948 | |
| 949 | */ |
| 950 | |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 951 | static PyObject * |
Neil Schemenauer | d4b0fea | 2002-12-30 20:18:15 +0000 | [diff] [blame] | 952 | binary_iop1(PyObject *v, PyObject *w, const int iop_slot, const int op_slot) |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 953 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 954 | PyNumberMethods *mv = v->ob_type->tp_as_number; |
| 955 | if (mv != NULL) { |
| 956 | binaryfunc slot = NB_BINOP(mv, iop_slot); |
| 957 | if (slot) { |
| 958 | PyObject *x = (slot)(v, w); |
| 959 | if (x != Py_NotImplemented) { |
| 960 | return x; |
| 961 | } |
| 962 | Py_DECREF(x); |
| 963 | } |
| 964 | } |
| 965 | return binary_op1(v, w, op_slot); |
Neil Schemenauer | d4b0fea | 2002-12-30 20:18:15 +0000 | [diff] [blame] | 966 | } |
| 967 | |
| 968 | static PyObject * |
| 969 | binary_iop(PyObject *v, PyObject *w, const int iop_slot, const int op_slot, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 970 | const char *op_name) |
Neil Schemenauer | d4b0fea | 2002-12-30 20:18:15 +0000 | [diff] [blame] | 971 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 972 | PyObject *result = binary_iop1(v, w, iop_slot, op_slot); |
| 973 | if (result == Py_NotImplemented) { |
| 974 | Py_DECREF(result); |
| 975 | return binop_type_error(v, w, op_name); |
| 976 | } |
| 977 | return result; |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 978 | } |
| 979 | |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 980 | #define INPLACE_BINOP(func, iop, op, op_name) \ |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 981 | PyObject * \ |
| 982 | func(PyObject *v, PyObject *w) { \ |
| 983 | return binary_iop(v, w, NB_SLOT(iop), NB_SLOT(op), op_name); \ |
| 984 | } |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 985 | |
Neil Schemenauer | 5a1f015 | 2001-01-04 01:39:06 +0000 | [diff] [blame] | 986 | INPLACE_BINOP(PyNumber_InPlaceOr, nb_inplace_or, nb_or, "|=") |
| 987 | INPLACE_BINOP(PyNumber_InPlaceXor, nb_inplace_xor, nb_xor, "^=") |
| 988 | INPLACE_BINOP(PyNumber_InPlaceAnd, nb_inplace_and, nb_and, "&=") |
| 989 | INPLACE_BINOP(PyNumber_InPlaceLshift, nb_inplace_lshift, nb_lshift, "<<=") |
| 990 | INPLACE_BINOP(PyNumber_InPlaceRshift, nb_inplace_rshift, nb_rshift, ">>=") |
| 991 | INPLACE_BINOP(PyNumber_InPlaceSubtract, nb_inplace_subtract, nb_subtract, "-=") |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 992 | |
| 993 | PyObject * |
Guido van Rossum | 4668b00 | 2001-08-08 05:00:18 +0000 | [diff] [blame] | 994 | PyNumber_InPlaceFloorDivide(PyObject *v, PyObject *w) |
| 995 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 996 | return binary_iop(v, w, NB_SLOT(nb_inplace_floor_divide), |
| 997 | NB_SLOT(nb_floor_divide), "//="); |
Guido van Rossum | 4668b00 | 2001-08-08 05:00:18 +0000 | [diff] [blame] | 998 | } |
| 999 | |
| 1000 | PyObject * |
| 1001 | PyNumber_InPlaceTrueDivide(PyObject *v, PyObject *w) |
| 1002 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1003 | return binary_iop(v, w, NB_SLOT(nb_inplace_true_divide), |
| 1004 | NB_SLOT(nb_true_divide), "/="); |
Guido van Rossum | 4668b00 | 2001-08-08 05:00:18 +0000 | [diff] [blame] | 1005 | } |
| 1006 | |
| 1007 | PyObject * |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 1008 | PyNumber_InPlaceAdd(PyObject *v, PyObject *w) |
| 1009 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1010 | PyObject *result = binary_iop1(v, w, NB_SLOT(nb_inplace_add), |
| 1011 | NB_SLOT(nb_add)); |
| 1012 | if (result == Py_NotImplemented) { |
| 1013 | PySequenceMethods *m = v->ob_type->tp_as_sequence; |
| 1014 | Py_DECREF(result); |
| 1015 | if (m != NULL) { |
| 1016 | binaryfunc f = NULL; |
| 1017 | f = m->sq_inplace_concat; |
| 1018 | if (f == NULL) |
| 1019 | f = m->sq_concat; |
| 1020 | if (f != NULL) |
| 1021 | return (*f)(v, w); |
| 1022 | } |
| 1023 | result = binop_type_error(v, w, "+="); |
| 1024 | } |
| 1025 | return result; |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 1026 | } |
| 1027 | |
| 1028 | PyObject * |
| 1029 | PyNumber_InPlaceMultiply(PyObject *v, PyObject *w) |
| 1030 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1031 | PyObject *result = binary_iop1(v, w, NB_SLOT(nb_inplace_multiply), |
| 1032 | NB_SLOT(nb_multiply)); |
| 1033 | if (result == Py_NotImplemented) { |
| 1034 | ssizeargfunc f = NULL; |
| 1035 | PySequenceMethods *mv = v->ob_type->tp_as_sequence; |
| 1036 | PySequenceMethods *mw = w->ob_type->tp_as_sequence; |
| 1037 | Py_DECREF(result); |
| 1038 | if (mv != NULL) { |
| 1039 | f = mv->sq_inplace_repeat; |
| 1040 | if (f == NULL) |
| 1041 | f = mv->sq_repeat; |
| 1042 | if (f != NULL) |
| 1043 | return sequence_repeat(f, v, w); |
| 1044 | } |
| 1045 | else if (mw != NULL) { |
| 1046 | /* Note that the right hand operand should not be |
| 1047 | * mutated in this case so sq_inplace_repeat is not |
| 1048 | * used. */ |
| 1049 | if (mw->sq_repeat) |
| 1050 | return sequence_repeat(mw->sq_repeat, w, v); |
| 1051 | } |
| 1052 | result = binop_type_error(v, w, "*="); |
| 1053 | } |
| 1054 | return result; |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 1055 | } |
| 1056 | |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 1057 | PyObject * |
| 1058 | PyNumber_InPlaceRemainder(PyObject *v, PyObject *w) |
| 1059 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1060 | return binary_iop(v, w, NB_SLOT(nb_inplace_remainder), |
| 1061 | NB_SLOT(nb_remainder), "%="); |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 1062 | } |
| 1063 | |
| 1064 | PyObject * |
| 1065 | PyNumber_InPlacePower(PyObject *v, PyObject *w, PyObject *z) |
| 1066 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1067 | if (v->ob_type->tp_as_number && |
| 1068 | v->ob_type->tp_as_number->nb_inplace_power != NULL) { |
| 1069 | return ternary_op(v, w, z, NB_SLOT(nb_inplace_power), "**="); |
| 1070 | } |
| 1071 | else { |
| 1072 | return ternary_op(v, w, z, NB_SLOT(nb_power), "**="); |
| 1073 | } |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 1074 | } |
| 1075 | |
| 1076 | |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1077 | /* Unary operators and functions */ |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1078 | |
| 1079 | PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1080 | PyNumber_Negative(PyObject *o) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1081 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1082 | PyNumberMethods *m; |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1083 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1084 | if (o == NULL) |
| 1085 | return null_error(); |
| 1086 | m = o->ob_type->tp_as_number; |
| 1087 | if (m && m->nb_negative) |
| 1088 | return (*m->nb_negative)(o); |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1089 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1090 | return type_error("bad operand type for unary -: '%.200s'", o); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1091 | } |
| 1092 | |
| 1093 | PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1094 | PyNumber_Positive(PyObject *o) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1095 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1096 | PyNumberMethods *m; |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1097 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1098 | if (o == NULL) |
| 1099 | return null_error(); |
| 1100 | m = o->ob_type->tp_as_number; |
| 1101 | if (m && m->nb_positive) |
| 1102 | return (*m->nb_positive)(o); |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1103 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1104 | return type_error("bad operand type for unary +: '%.200s'", o); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1105 | } |
| 1106 | |
| 1107 | PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1108 | PyNumber_Invert(PyObject *o) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1109 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1110 | PyNumberMethods *m; |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1111 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1112 | if (o == NULL) |
| 1113 | return null_error(); |
| 1114 | m = o->ob_type->tp_as_number; |
| 1115 | if (m && m->nb_invert) |
| 1116 | return (*m->nb_invert)(o); |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1117 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1118 | return type_error("bad operand type for unary ~: '%.200s'", o); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1119 | } |
| 1120 | |
| 1121 | PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1122 | PyNumber_Absolute(PyObject *o) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1123 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1124 | PyNumberMethods *m; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1125 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1126 | if (o == NULL) |
| 1127 | return null_error(); |
| 1128 | m = o->ob_type->tp_as_number; |
| 1129 | if (m && m->nb_absolute) |
| 1130 | return m->nb_absolute(o); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1131 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1132 | return type_error("bad operand type for abs(): '%.200s'", o); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1133 | } |
| 1134 | |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1135 | /* Return a Python Int or Long from the object item |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 1136 | Raise TypeError if the result is not an int-or-long |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1137 | or if the object cannot be interpreted as an index. |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 1138 | */ |
| 1139 | PyObject * |
Guido van Rossum | 38fff8c | 2006-03-07 18:50:55 +0000 | [diff] [blame] | 1140 | PyNumber_Index(PyObject *item) |
| 1141 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1142 | PyObject *result = NULL; |
| 1143 | if (item == NULL) |
| 1144 | return null_error(); |
| 1145 | if (PyLong_Check(item)) { |
| 1146 | Py_INCREF(item); |
| 1147 | return item; |
| 1148 | } |
| 1149 | if (PyIndex_Check(item)) { |
| 1150 | result = item->ob_type->tp_as_number->nb_index(item); |
| 1151 | if (result && !PyLong_Check(result)) { |
| 1152 | PyErr_Format(PyExc_TypeError, |
| 1153 | "__index__ returned non-int " |
| 1154 | "(type %.200s)", |
| 1155 | result->ob_type->tp_name); |
| 1156 | Py_DECREF(result); |
| 1157 | return NULL; |
| 1158 | } |
| 1159 | } |
| 1160 | else { |
| 1161 | PyErr_Format(PyExc_TypeError, |
| 1162 | "'%.200s' object cannot be interpreted " |
| 1163 | "as an integer", item->ob_type->tp_name); |
| 1164 | } |
| 1165 | return result; |
Guido van Rossum | 38fff8c | 2006-03-07 18:50:55 +0000 | [diff] [blame] | 1166 | } |
| 1167 | |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 1168 | /* Return an error on Overflow only if err is not NULL*/ |
| 1169 | |
| 1170 | Py_ssize_t |
| 1171 | PyNumber_AsSsize_t(PyObject *item, PyObject *err) |
| 1172 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1173 | Py_ssize_t result; |
| 1174 | PyObject *runerr; |
| 1175 | PyObject *value = PyNumber_Index(item); |
| 1176 | if (value == NULL) |
| 1177 | return -1; |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 1178 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1179 | /* We're done if PyLong_AsSsize_t() returns without error. */ |
| 1180 | result = PyLong_AsSsize_t(value); |
| 1181 | if (result != -1 || !(runerr = PyErr_Occurred())) |
| 1182 | goto finish; |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 1183 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1184 | /* Error handling code -- only manage OverflowError differently */ |
| 1185 | if (!PyErr_GivenExceptionMatches(runerr, PyExc_OverflowError)) |
| 1186 | goto finish; |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 1187 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1188 | PyErr_Clear(); |
| 1189 | /* If no error-handling desired then the default clipping |
| 1190 | is sufficient. |
| 1191 | */ |
| 1192 | if (!err) { |
| 1193 | assert(PyLong_Check(value)); |
| 1194 | /* Whether or not it is less than or equal to |
| 1195 | zero is determined by the sign of ob_size |
| 1196 | */ |
| 1197 | if (_PyLong_Sign(value) < 0) |
| 1198 | result = PY_SSIZE_T_MIN; |
| 1199 | else |
| 1200 | result = PY_SSIZE_T_MAX; |
| 1201 | } |
| 1202 | else { |
| 1203 | /* Otherwise replace the error with caller's error object. */ |
| 1204 | PyErr_Format(err, |
| 1205 | "cannot fit '%.200s' into an index-sized integer", |
| 1206 | item->ob_type->tp_name); |
| 1207 | } |
Guido van Rossum | 98297ee | 2007-11-06 21:34:58 +0000 | [diff] [blame] | 1208 | |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 1209 | finish: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1210 | Py_DECREF(value); |
| 1211 | return result; |
Thomas Wouters | 00ee7ba | 2006-08-21 19:07:27 +0000 | [diff] [blame] | 1212 | } |
| 1213 | |
| 1214 | |
Benjamin Peterson | b7f1da5 | 2012-03-21 14:44:43 -0400 | [diff] [blame] | 1215 | /* |
| 1216 | Returns the Integral instance converted to an int. The instance is expected |
| 1217 | to be an int or have an __int__ method. Steals integral's |
| 1218 | reference. error_format will be used to create the TypeError if integral |
| 1219 | isn't actually an Integral instance. error_format should be a format string |
| 1220 | that can accept a char* naming integral's type. |
| 1221 | */ |
| 1222 | static PyObject * |
| 1223 | convert_integral_to_int(PyObject *integral, const char *error_format) |
Christian Heimes | 15ebc88 | 2008-02-04 18:48:49 +0000 | [diff] [blame] | 1224 | { |
Benjamin Peterson | d614e70 | 2012-03-21 14:38:11 -0400 | [diff] [blame] | 1225 | PyNumberMethods *nb; |
| 1226 | if (PyLong_Check(integral)) |
| 1227 | return integral; |
| 1228 | nb = Py_TYPE(integral)->tp_as_number; |
| 1229 | if (nb->nb_int) { |
| 1230 | PyObject *as_int = nb->nb_int(integral); |
Mark Dickinson | 3d78385 | 2012-09-27 19:38:59 +0100 | [diff] [blame^] | 1231 | if (!as_int || PyLong_Check(as_int)) { |
| 1232 | Py_DECREF(integral); |
Benjamin Peterson | d614e70 | 2012-03-21 14:38:11 -0400 | [diff] [blame] | 1233 | return as_int; |
Mark Dickinson | 3d78385 | 2012-09-27 19:38:59 +0100 | [diff] [blame^] | 1234 | } |
Benjamin Peterson | d614e70 | 2012-03-21 14:38:11 -0400 | [diff] [blame] | 1235 | Py_DECREF(as_int); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1236 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1237 | PyErr_Format(PyExc_TypeError, error_format, Py_TYPE(integral)->tp_name); |
| 1238 | Py_DECREF(integral); |
Benjamin Peterson | d614e70 | 2012-03-21 14:38:11 -0400 | [diff] [blame] | 1239 | return NULL; |
Christian Heimes | 15ebc88 | 2008-02-04 18:48:49 +0000 | [diff] [blame] | 1240 | } |
| 1241 | |
| 1242 | |
Guido van Rossum | 9e896b3 | 2000-04-05 20:11:21 +0000 | [diff] [blame] | 1243 | /* Add a check for embedded NULL-bytes in the argument. */ |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1244 | static PyObject * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1245 | long_from_string(const char *s, Py_ssize_t len) |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1246 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1247 | char *end; |
| 1248 | PyObject *x; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1249 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1250 | x = PyLong_FromString((char*)s, &end, 10); |
| 1251 | if (x == NULL) |
| 1252 | return NULL; |
| 1253 | if (end != s + len) { |
| 1254 | PyErr_SetString(PyExc_ValueError, |
| 1255 | "null byte in argument for int()"); |
| 1256 | Py_DECREF(x); |
| 1257 | return NULL; |
| 1258 | } |
| 1259 | return x; |
Barry Warsaw | 226ae6c | 1999-10-12 19:54:53 +0000 | [diff] [blame] | 1260 | } |
| 1261 | |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1262 | PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1263 | PyNumber_Long(PyObject *o) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1264 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1265 | PyNumberMethods *m; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1266 | PyObject *trunc_func; |
| 1267 | const char *buffer; |
| 1268 | Py_ssize_t buffer_len; |
Benjamin Peterson | 9fc9bf4 | 2012-03-20 23:26:41 -0400 | [diff] [blame] | 1269 | _Py_IDENTIFIER(__trunc__); |
Christian Heimes | 15ebc88 | 2008-02-04 18:48:49 +0000 | [diff] [blame] | 1270 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1271 | if (o == NULL) |
| 1272 | return null_error(); |
| 1273 | if (PyLong_CheckExact(o)) { |
| 1274 | Py_INCREF(o); |
| 1275 | return o; |
| 1276 | } |
| 1277 | m = o->ob_type->tp_as_number; |
| 1278 | if (m && m->nb_int) { /* This should include subclasses of int */ |
| 1279 | PyObject *res = m->nb_int(o); |
| 1280 | if (res && !PyLong_Check(res)) { |
| 1281 | PyErr_Format(PyExc_TypeError, |
| 1282 | "__int__ returned non-int (type %.200s)", |
| 1283 | res->ob_type->tp_name); |
| 1284 | Py_DECREF(res); |
| 1285 | return NULL; |
| 1286 | } |
| 1287 | return res; |
| 1288 | } |
| 1289 | if (PyLong_Check(o)) /* An int subclass without nb_int */ |
| 1290 | return _PyLong_Copy((PyLongObject *)o); |
Benjamin Peterson | 1b1a8e7 | 2012-03-20 23:48:11 -0400 | [diff] [blame] | 1291 | trunc_func = _PyObject_LookupSpecial(o, &PyId___trunc__); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1292 | if (trunc_func) { |
| 1293 | PyObject *truncated = PyEval_CallObject(trunc_func, NULL); |
| 1294 | PyObject *int_instance; |
| 1295 | Py_DECREF(trunc_func); |
| 1296 | /* __trunc__ is specified to return an Integral type, |
Benjamin Peterson | 520e850 | 2012-03-21 14:51:14 -0400 | [diff] [blame] | 1297 | but int() needs to return a int. */ |
Benjamin Peterson | b7f1da5 | 2012-03-21 14:44:43 -0400 | [diff] [blame] | 1298 | int_instance = convert_integral_to_int(truncated, |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1299 | "__trunc__ returned non-Integral (type %.200s)"); |
| 1300 | return int_instance; |
| 1301 | } |
Benjamin Peterson | 1b1a8e7 | 2012-03-20 23:48:11 -0400 | [diff] [blame] | 1302 | if (PyErr_Occurred()) |
| 1303 | return NULL; |
Christian Heimes | 15ebc88 | 2008-02-04 18:48:49 +0000 | [diff] [blame] | 1304 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1305 | if (PyBytes_Check(o)) |
| 1306 | /* need to do extra error checking that PyLong_FromString() |
Benjamin Peterson | 520e850 | 2012-03-21 14:51:14 -0400 | [diff] [blame] | 1307 | * doesn't do. In particular int('9.5') must raise an |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1308 | * exception, not truncate the float. |
| 1309 | */ |
| 1310 | return long_from_string(PyBytes_AS_STRING(o), |
| 1311 | PyBytes_GET_SIZE(o)); |
| 1312 | if (PyUnicode_Check(o)) |
| 1313 | /* The above check is done in PyLong_FromUnicode(). */ |
Martin v. Löwis | d63a3b8 | 2011-09-28 07:41:54 +0200 | [diff] [blame] | 1314 | return PyLong_FromUnicodeObject(o, 10); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1315 | if (!PyObject_AsCharBuffer(o, &buffer, &buffer_len)) |
| 1316 | return long_from_string(buffer, buffer_len); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1317 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1318 | return type_error("int() argument must be a string or a " |
| 1319 | "number, not '%.200s'", o); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1320 | } |
| 1321 | |
| 1322 | PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1323 | PyNumber_Float(PyObject *o) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1324 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1325 | PyNumberMethods *m; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1326 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1327 | if (o == NULL) |
| 1328 | return null_error(); |
| 1329 | m = o->ob_type->tp_as_number; |
| 1330 | if (m && m->nb_float) { /* This should include subclasses of float */ |
| 1331 | PyObject *res = m->nb_float(o); |
| 1332 | if (res && !PyFloat_Check(res)) { |
| 1333 | PyErr_Format(PyExc_TypeError, |
| 1334 | "__float__ returned non-float (type %.200s)", |
| 1335 | res->ob_type->tp_name); |
| 1336 | Py_DECREF(res); |
| 1337 | return NULL; |
| 1338 | } |
| 1339 | return res; |
| 1340 | } |
| 1341 | if (PyFloat_Check(o)) { /* A float subclass with nb_float == NULL */ |
| 1342 | PyFloatObject *po = (PyFloatObject *)o; |
| 1343 | return PyFloat_FromDouble(po->ob_fval); |
| 1344 | } |
| 1345 | return PyFloat_FromString(o); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1346 | } |
| 1347 | |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1348 | |
| 1349 | PyObject * |
| 1350 | PyNumber_ToBase(PyObject *n, int base) |
| 1351 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1352 | PyObject *res = NULL; |
| 1353 | PyObject *index = PyNumber_Index(n); |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1354 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1355 | if (!index) |
| 1356 | return NULL; |
| 1357 | if (PyLong_Check(index)) |
| 1358 | res = _PyLong_Format(index, base); |
| 1359 | else |
| 1360 | /* It should not be possible to get here, as |
| 1361 | PyNumber_Index already has a check for the same |
| 1362 | condition */ |
| 1363 | PyErr_SetString(PyExc_ValueError, "PyNumber_ToBase: index not " |
| 1364 | "int or long"); |
| 1365 | Py_DECREF(index); |
| 1366 | return res; |
Guido van Rossum | cd16bf6 | 2007-06-13 18:07:49 +0000 | [diff] [blame] | 1367 | } |
| 1368 | |
| 1369 | |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1370 | /* Operations on sequences */ |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1371 | |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1372 | int |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1373 | PySequence_Check(PyObject *s) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1374 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1375 | if (PyDict_Check(s)) |
| 1376 | return 0; |
| 1377 | return s != NULL && s->ob_type->tp_as_sequence && |
| 1378 | s->ob_type->tp_as_sequence->sq_item != NULL; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1379 | } |
| 1380 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1381 | Py_ssize_t |
Jeremy Hylton | 6253f83 | 2000-07-12 12:56:19 +0000 | [diff] [blame] | 1382 | PySequence_Size(PyObject *s) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1383 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1384 | PySequenceMethods *m; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1385 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1386 | if (s == NULL) { |
| 1387 | null_error(); |
| 1388 | return -1; |
| 1389 | } |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1390 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1391 | m = s->ob_type->tp_as_sequence; |
| 1392 | if (m && m->sq_length) |
| 1393 | return m->sq_length(s); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1394 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1395 | type_error("object of type '%.200s' has no len()", s); |
| 1396 | return -1; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1397 | } |
| 1398 | |
Marc-André Lemburg | cf5f358 | 2000-07-17 09:22:55 +0000 | [diff] [blame] | 1399 | #undef PySequence_Length |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1400 | Py_ssize_t |
Marc-André Lemburg | cf5f358 | 2000-07-17 09:22:55 +0000 | [diff] [blame] | 1401 | PySequence_Length(PyObject *s) |
| 1402 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1403 | return PySequence_Size(s); |
Marc-André Lemburg | cf5f358 | 2000-07-17 09:22:55 +0000 | [diff] [blame] | 1404 | } |
| 1405 | #define PySequence_Length PySequence_Size |
| 1406 | |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1407 | PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1408 | PySequence_Concat(PyObject *s, PyObject *o) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1409 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1410 | PySequenceMethods *m; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1411 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1412 | if (s == NULL || o == NULL) |
| 1413 | return null_error(); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1414 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1415 | m = s->ob_type->tp_as_sequence; |
| 1416 | if (m && m->sq_concat) |
| 1417 | return m->sq_concat(s, o); |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1418 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1419 | /* Instances of user classes defining an __add__() method only |
| 1420 | have an nb_add slot, not an sq_concat slot. So we fall back |
| 1421 | to nb_add if both arguments appear to be sequences. */ |
| 1422 | if (PySequence_Check(s) && PySequence_Check(o)) { |
| 1423 | PyObject *result = binary_op1(s, o, NB_SLOT(nb_add)); |
| 1424 | if (result != Py_NotImplemented) |
| 1425 | return result; |
| 1426 | Py_DECREF(result); |
| 1427 | } |
| 1428 | return type_error("'%.200s' object can't be concatenated", s); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1429 | } |
| 1430 | |
| 1431 | PyObject * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1432 | PySequence_Repeat(PyObject *o, Py_ssize_t count) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1433 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1434 | PySequenceMethods *m; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1435 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1436 | if (o == NULL) |
| 1437 | return null_error(); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1438 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1439 | m = o->ob_type->tp_as_sequence; |
| 1440 | if (m && m->sq_repeat) |
| 1441 | return m->sq_repeat(o, count); |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1442 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1443 | /* Instances of user classes defining a __mul__() method only |
| 1444 | have an nb_multiply slot, not an sq_repeat slot. so we fall back |
| 1445 | to nb_multiply if o appears to be a sequence. */ |
| 1446 | if (PySequence_Check(o)) { |
| 1447 | PyObject *n, *result; |
| 1448 | n = PyLong_FromSsize_t(count); |
| 1449 | if (n == NULL) |
| 1450 | return NULL; |
| 1451 | result = binary_op1(o, n, NB_SLOT(nb_multiply)); |
| 1452 | Py_DECREF(n); |
| 1453 | if (result != Py_NotImplemented) |
| 1454 | return result; |
| 1455 | Py_DECREF(result); |
| 1456 | } |
| 1457 | return type_error("'%.200s' object can't be repeated", o); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1458 | } |
| 1459 | |
| 1460 | PyObject * |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 1461 | PySequence_InPlaceConcat(PyObject *s, PyObject *o) |
| 1462 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1463 | PySequenceMethods *m; |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 1464 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1465 | if (s == NULL || o == NULL) |
| 1466 | return null_error(); |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 1467 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1468 | m = s->ob_type->tp_as_sequence; |
| 1469 | if (m && m->sq_inplace_concat) |
| 1470 | return m->sq_inplace_concat(s, o); |
| 1471 | if (m && m->sq_concat) |
| 1472 | return m->sq_concat(s, o); |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 1473 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1474 | if (PySequence_Check(s) && PySequence_Check(o)) { |
| 1475 | PyObject *result = binary_iop1(s, o, NB_SLOT(nb_inplace_add), |
| 1476 | NB_SLOT(nb_add)); |
| 1477 | if (result != Py_NotImplemented) |
| 1478 | return result; |
| 1479 | Py_DECREF(result); |
| 1480 | } |
| 1481 | return type_error("'%.200s' object can't be concatenated", s); |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 1482 | } |
| 1483 | |
| 1484 | PyObject * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1485 | PySequence_InPlaceRepeat(PyObject *o, Py_ssize_t count) |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 1486 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1487 | PySequenceMethods *m; |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 1488 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1489 | if (o == NULL) |
| 1490 | return null_error(); |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 1491 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1492 | m = o->ob_type->tp_as_sequence; |
| 1493 | if (m && m->sq_inplace_repeat) |
| 1494 | return m->sq_inplace_repeat(o, count); |
| 1495 | if (m && m->sq_repeat) |
| 1496 | return m->sq_repeat(o, count); |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 1497 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1498 | if (PySequence_Check(o)) { |
| 1499 | PyObject *n, *result; |
| 1500 | n = PyLong_FromSsize_t(count); |
| 1501 | if (n == NULL) |
| 1502 | return NULL; |
| 1503 | result = binary_iop1(o, n, NB_SLOT(nb_inplace_multiply), |
| 1504 | NB_SLOT(nb_multiply)); |
| 1505 | Py_DECREF(n); |
| 1506 | if (result != Py_NotImplemented) |
| 1507 | return result; |
| 1508 | Py_DECREF(result); |
| 1509 | } |
| 1510 | return type_error("'%.200s' object can't be repeated", o); |
Thomas Wouters | e289e0b | 2000-08-24 20:08:19 +0000 | [diff] [blame] | 1511 | } |
| 1512 | |
| 1513 | PyObject * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1514 | PySequence_GetItem(PyObject *s, Py_ssize_t i) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1515 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1516 | PySequenceMethods *m; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1517 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1518 | if (s == NULL) |
| 1519 | return null_error(); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1520 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1521 | m = s->ob_type->tp_as_sequence; |
| 1522 | if (m && m->sq_item) { |
| 1523 | if (i < 0) { |
| 1524 | if (m->sq_length) { |
| 1525 | Py_ssize_t l = (*m->sq_length)(s); |
| 1526 | if (l < 0) |
| 1527 | return NULL; |
| 1528 | i += l; |
| 1529 | } |
| 1530 | } |
| 1531 | return m->sq_item(s, i); |
| 1532 | } |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1533 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1534 | return type_error("'%.200s' object does not support indexing", s); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1535 | } |
| 1536 | |
| 1537 | PyObject * |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1538 | PySequence_GetSlice(PyObject *s, Py_ssize_t i1, Py_ssize_t i2) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1539 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1540 | PyMappingMethods *mp; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1541 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1542 | if (!s) return null_error(); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1543 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1544 | mp = s->ob_type->tp_as_mapping; |
Benjamin Peterson | 568867a | 2010-09-11 16:02:03 +0000 | [diff] [blame] | 1545 | if (mp && mp->mp_subscript) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1546 | PyObject *res; |
| 1547 | PyObject *slice = _PySlice_FromIndices(i1, i2); |
| 1548 | if (!slice) |
| 1549 | return NULL; |
| 1550 | res = mp->mp_subscript(s, slice); |
| 1551 | Py_DECREF(slice); |
| 1552 | return res; |
| 1553 | } |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1554 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1555 | return type_error("'%.200s' object is unsliceable", s); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1556 | } |
| 1557 | |
| 1558 | int |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1559 | PySequence_SetItem(PyObject *s, Py_ssize_t i, PyObject *o) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1560 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1561 | PySequenceMethods *m; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1562 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1563 | if (s == NULL) { |
| 1564 | null_error(); |
| 1565 | return -1; |
| 1566 | } |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1567 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1568 | m = s->ob_type->tp_as_sequence; |
| 1569 | if (m && m->sq_ass_item) { |
| 1570 | if (i < 0) { |
| 1571 | if (m->sq_length) { |
| 1572 | Py_ssize_t l = (*m->sq_length)(s); |
| 1573 | if (l < 0) |
| 1574 | return -1; |
| 1575 | i += l; |
| 1576 | } |
| 1577 | } |
| 1578 | return m->sq_ass_item(s, i, o); |
| 1579 | } |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1580 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1581 | type_error("'%.200s' object does not support item assignment", s); |
| 1582 | return -1; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1583 | } |
| 1584 | |
Guido van Rossum | 6cdc6f4 | 1996-08-21 17:41:54 +0000 | [diff] [blame] | 1585 | int |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1586 | PySequence_DelItem(PyObject *s, Py_ssize_t i) |
Guido van Rossum | 6cdc6f4 | 1996-08-21 17:41:54 +0000 | [diff] [blame] | 1587 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1588 | PySequenceMethods *m; |
Guido van Rossum | 6cdc6f4 | 1996-08-21 17:41:54 +0000 | [diff] [blame] | 1589 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1590 | if (s == NULL) { |
| 1591 | null_error(); |
| 1592 | return -1; |
| 1593 | } |
Guido van Rossum | 6cdc6f4 | 1996-08-21 17:41:54 +0000 | [diff] [blame] | 1594 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1595 | m = s->ob_type->tp_as_sequence; |
| 1596 | if (m && m->sq_ass_item) { |
| 1597 | if (i < 0) { |
| 1598 | if (m->sq_length) { |
| 1599 | Py_ssize_t l = (*m->sq_length)(s); |
| 1600 | if (l < 0) |
| 1601 | return -1; |
| 1602 | i += l; |
| 1603 | } |
| 1604 | } |
| 1605 | return m->sq_ass_item(s, i, (PyObject *)NULL); |
| 1606 | } |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1607 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1608 | type_error("'%.200s' object doesn't support item deletion", s); |
| 1609 | return -1; |
Guido van Rossum | 6cdc6f4 | 1996-08-21 17:41:54 +0000 | [diff] [blame] | 1610 | } |
| 1611 | |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1612 | int |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1613 | PySequence_SetSlice(PyObject *s, Py_ssize_t i1, Py_ssize_t i2, PyObject *o) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1614 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1615 | PyMappingMethods *mp; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1616 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1617 | if (s == NULL) { |
| 1618 | null_error(); |
| 1619 | return -1; |
| 1620 | } |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1621 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1622 | mp = s->ob_type->tp_as_mapping; |
Benjamin Peterson | 568867a | 2010-09-11 16:02:03 +0000 | [diff] [blame] | 1623 | if (mp && mp->mp_ass_subscript) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1624 | int res; |
| 1625 | PyObject *slice = _PySlice_FromIndices(i1, i2); |
| 1626 | if (!slice) |
| 1627 | return -1; |
| 1628 | res = mp->mp_ass_subscript(s, slice, o); |
| 1629 | Py_DECREF(slice); |
| 1630 | return res; |
| 1631 | } |
Thomas Wouters | 1d75a79 | 2000-08-17 22:37:32 +0000 | [diff] [blame] | 1632 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1633 | type_error("'%.200s' object doesn't support slice assignment", s); |
| 1634 | return -1; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1635 | } |
| 1636 | |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1637 | int |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1638 | PySequence_DelSlice(PyObject *s, Py_ssize_t i1, Py_ssize_t i2) |
Guido van Rossum | 6cdc6f4 | 1996-08-21 17:41:54 +0000 | [diff] [blame] | 1639 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1640 | PyMappingMethods *mp; |
Guido van Rossum | 6cdc6f4 | 1996-08-21 17:41:54 +0000 | [diff] [blame] | 1641 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1642 | if (s == NULL) { |
| 1643 | null_error(); |
| 1644 | return -1; |
| 1645 | } |
Guido van Rossum | 6cdc6f4 | 1996-08-21 17:41:54 +0000 | [diff] [blame] | 1646 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1647 | mp = s->ob_type->tp_as_mapping; |
Benjamin Peterson | 568867a | 2010-09-11 16:02:03 +0000 | [diff] [blame] | 1648 | if (mp && mp->mp_ass_subscript) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1649 | int res; |
| 1650 | PyObject *slice = _PySlice_FromIndices(i1, i2); |
| 1651 | if (!slice) |
| 1652 | return -1; |
| 1653 | res = mp->mp_ass_subscript(s, slice, NULL); |
| 1654 | Py_DECREF(slice); |
| 1655 | return res; |
| 1656 | } |
| 1657 | type_error("'%.200s' object doesn't support slice deletion", s); |
| 1658 | return -1; |
Guido van Rossum | 6cdc6f4 | 1996-08-21 17:41:54 +0000 | [diff] [blame] | 1659 | } |
| 1660 | |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1661 | PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1662 | PySequence_Tuple(PyObject *v) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1663 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1664 | PyObject *it; /* iter(v) */ |
| 1665 | Py_ssize_t n; /* guess for result tuple size */ |
| 1666 | PyObject *result = NULL; |
| 1667 | Py_ssize_t j; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1668 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1669 | if (v == NULL) |
| 1670 | return null_error(); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1671 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1672 | /* Special-case the common tuple and list cases, for efficiency. */ |
| 1673 | if (PyTuple_CheckExact(v)) { |
| 1674 | /* Note that we can't know whether it's safe to return |
| 1675 | a tuple *subclass* instance as-is, hence the restriction |
| 1676 | to exact tuples here. In contrast, lists always make |
| 1677 | a copy, so there's no need for exactness below. */ |
| 1678 | Py_INCREF(v); |
| 1679 | return v; |
| 1680 | } |
| 1681 | if (PyList_Check(v)) |
| 1682 | return PyList_AsTuple(v); |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1683 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1684 | /* Get iterator. */ |
| 1685 | it = PyObject_GetIter(v); |
| 1686 | if (it == NULL) |
| 1687 | return NULL; |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1688 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1689 | /* Guess result size and allocate space. */ |
| 1690 | n = _PyObject_LengthHint(v, 10); |
| 1691 | if (n == -1) |
| 1692 | goto Fail; |
| 1693 | result = PyTuple_New(n); |
| 1694 | if (result == NULL) |
| 1695 | goto Fail; |
Tim Peters | 6912d4d | 2001-05-05 03:56:37 +0000 | [diff] [blame] | 1696 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1697 | /* Fill the tuple. */ |
| 1698 | for (j = 0; ; ++j) { |
| 1699 | PyObject *item = PyIter_Next(it); |
| 1700 | if (item == NULL) { |
| 1701 | if (PyErr_Occurred()) |
| 1702 | goto Fail; |
| 1703 | break; |
| 1704 | } |
| 1705 | if (j >= n) { |
| 1706 | Py_ssize_t oldn = n; |
| 1707 | /* The over-allocation strategy can grow a bit faster |
| 1708 | than for lists because unlike lists the |
| 1709 | over-allocation isn't permanent -- we reclaim |
| 1710 | the excess before the end of this routine. |
| 1711 | So, grow by ten and then add 25%. |
| 1712 | */ |
| 1713 | n += 10; |
| 1714 | n += n >> 2; |
| 1715 | if (n < oldn) { |
| 1716 | /* Check for overflow */ |
| 1717 | PyErr_NoMemory(); |
| 1718 | Py_DECREF(item); |
| 1719 | goto Fail; |
| 1720 | } |
| 1721 | if (_PyTuple_Resize(&result, n) != 0) { |
| 1722 | Py_DECREF(item); |
| 1723 | goto Fail; |
| 1724 | } |
| 1725 | } |
| 1726 | PyTuple_SET_ITEM(result, j, item); |
| 1727 | } |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1728 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1729 | /* Cut tuple back if guess was too large. */ |
| 1730 | if (j < n && |
| 1731 | _PyTuple_Resize(&result, j) != 0) |
| 1732 | goto Fail; |
Tim Peters | 6912d4d | 2001-05-05 03:56:37 +0000 | [diff] [blame] | 1733 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1734 | Py_DECREF(it); |
| 1735 | return result; |
Tim Peters | 6912d4d | 2001-05-05 03:56:37 +0000 | [diff] [blame] | 1736 | |
| 1737 | Fail: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1738 | Py_XDECREF(result); |
| 1739 | Py_DECREF(it); |
| 1740 | return NULL; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1741 | } |
| 1742 | |
Guido van Rossum | 3c5936a | 1996-12-05 21:51:24 +0000 | [diff] [blame] | 1743 | PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1744 | PySequence_List(PyObject *v) |
Guido van Rossum | 3c5936a | 1996-12-05 21:51:24 +0000 | [diff] [blame] | 1745 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1746 | PyObject *result; /* result list */ |
| 1747 | PyObject *rv; /* return value from PyList_Extend */ |
Guido van Rossum | 4669fb4 | 1997-04-02 05:31:09 +0000 | [diff] [blame] | 1748 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1749 | if (v == NULL) |
| 1750 | return null_error(); |
Guido van Rossum | 5dba9e8 | 1998-07-10 18:03:50 +0000 | [diff] [blame] | 1751 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1752 | result = PyList_New(0); |
| 1753 | if (result == NULL) |
| 1754 | return NULL; |
Tim Peters | f553f89 | 2001-05-01 20:45:31 +0000 | [diff] [blame] | 1755 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1756 | rv = _PyList_Extend((PyListObject *)result, v); |
| 1757 | if (rv == NULL) { |
| 1758 | Py_DECREF(result); |
| 1759 | return NULL; |
| 1760 | } |
| 1761 | Py_DECREF(rv); |
| 1762 | return result; |
Guido van Rossum | 3c5936a | 1996-12-05 21:51:24 +0000 | [diff] [blame] | 1763 | } |
| 1764 | |
Andrew M. Kuchling | 74042d6 | 2000-06-18 18:43:14 +0000 | [diff] [blame] | 1765 | PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1766 | PySequence_Fast(PyObject *v, const char *m) |
Andrew M. Kuchling | 74042d6 | 2000-06-18 18:43:14 +0000 | [diff] [blame] | 1767 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1768 | PyObject *it; |
Raymond Hettinger | 2fb7029 | 2004-01-11 23:26:51 +0000 | [diff] [blame] | 1769 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1770 | if (v == NULL) |
| 1771 | return null_error(); |
Andrew M. Kuchling | 74042d6 | 2000-06-18 18:43:14 +0000 | [diff] [blame] | 1772 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1773 | if (PyList_CheckExact(v) || PyTuple_CheckExact(v)) { |
| 1774 | Py_INCREF(v); |
| 1775 | return v; |
| 1776 | } |
Andrew M. Kuchling | 74042d6 | 2000-06-18 18:43:14 +0000 | [diff] [blame] | 1777 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1778 | it = PyObject_GetIter(v); |
| 1779 | if (it == NULL) { |
| 1780 | if (PyErr_ExceptionMatches(PyExc_TypeError)) |
| 1781 | PyErr_SetString(PyExc_TypeError, m); |
| 1782 | return NULL; |
| 1783 | } |
Raymond Hettinger | 2fb7029 | 2004-01-11 23:26:51 +0000 | [diff] [blame] | 1784 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1785 | v = PySequence_List(it); |
| 1786 | Py_DECREF(it); |
Andrew M. Kuchling | 74042d6 | 2000-06-18 18:43:14 +0000 | [diff] [blame] | 1787 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1788 | return v; |
Andrew M. Kuchling | 74042d6 | 2000-06-18 18:43:14 +0000 | [diff] [blame] | 1789 | } |
| 1790 | |
Tim Peters | 16a77ad | 2001-09-08 04:00:12 +0000 | [diff] [blame] | 1791 | /* Iterate over seq. Result depends on the operation: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1792 | PY_ITERSEARCH_COUNT: -1 if error, else # of times obj appears in seq. |
| 1793 | PY_ITERSEARCH_INDEX: 0-based index of first occurrence of obj in seq; |
| 1794 | set ValueError and return -1 if none found; also return -1 on error. |
Tim Peters | 16a77ad | 2001-09-08 04:00:12 +0000 | [diff] [blame] | 1795 | Py_ITERSEARCH_CONTAINS: return 1 if obj in seq, else 0; -1 on error. |
| 1796 | */ |
Neal Norwitz | 1fc4b77 | 2006-03-04 18:49:58 +0000 | [diff] [blame] | 1797 | Py_ssize_t |
Tim Peters | 16a77ad | 2001-09-08 04:00:12 +0000 | [diff] [blame] | 1798 | _PySequence_IterSearch(PyObject *seq, PyObject *obj, int operation) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1799 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1800 | Py_ssize_t n; |
| 1801 | int wrapped; /* for PY_ITERSEARCH_INDEX, true iff n wrapped around */ |
| 1802 | PyObject *it; /* iter(seq) */ |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1803 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1804 | if (seq == NULL || obj == NULL) { |
| 1805 | null_error(); |
| 1806 | return -1; |
| 1807 | } |
Tim Peters | 75f8e35 | 2001-05-05 11:33:43 +0000 | [diff] [blame] | 1808 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1809 | it = PyObject_GetIter(seq); |
| 1810 | if (it == NULL) { |
| 1811 | type_error("argument of type '%.200s' is not iterable", seq); |
| 1812 | return -1; |
| 1813 | } |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1814 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1815 | n = wrapped = 0; |
| 1816 | for (;;) { |
| 1817 | int cmp; |
| 1818 | PyObject *item = PyIter_Next(it); |
| 1819 | if (item == NULL) { |
| 1820 | if (PyErr_Occurred()) |
| 1821 | goto Fail; |
| 1822 | break; |
| 1823 | } |
Tim Peters | 16a77ad | 2001-09-08 04:00:12 +0000 | [diff] [blame] | 1824 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1825 | cmp = PyObject_RichCompareBool(obj, item, Py_EQ); |
| 1826 | Py_DECREF(item); |
| 1827 | if (cmp < 0) |
| 1828 | goto Fail; |
| 1829 | if (cmp > 0) { |
| 1830 | switch (operation) { |
| 1831 | case PY_ITERSEARCH_COUNT: |
| 1832 | if (n == PY_SSIZE_T_MAX) { |
| 1833 | PyErr_SetString(PyExc_OverflowError, |
| 1834 | "count exceeds C integer size"); |
| 1835 | goto Fail; |
| 1836 | } |
| 1837 | ++n; |
| 1838 | break; |
Tim Peters | 16a77ad | 2001-09-08 04:00:12 +0000 | [diff] [blame] | 1839 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1840 | case PY_ITERSEARCH_INDEX: |
| 1841 | if (wrapped) { |
| 1842 | PyErr_SetString(PyExc_OverflowError, |
| 1843 | "index exceeds C integer size"); |
| 1844 | goto Fail; |
| 1845 | } |
| 1846 | goto Done; |
Tim Peters | 16a77ad | 2001-09-08 04:00:12 +0000 | [diff] [blame] | 1847 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1848 | case PY_ITERSEARCH_CONTAINS: |
| 1849 | n = 1; |
| 1850 | goto Done; |
Tim Peters | 16a77ad | 2001-09-08 04:00:12 +0000 | [diff] [blame] | 1851 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1852 | default: |
| 1853 | assert(!"unknown operation"); |
| 1854 | } |
| 1855 | } |
Tim Peters | 16a77ad | 2001-09-08 04:00:12 +0000 | [diff] [blame] | 1856 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1857 | if (operation == PY_ITERSEARCH_INDEX) { |
| 1858 | if (n == PY_SSIZE_T_MAX) |
| 1859 | wrapped = 1; |
| 1860 | ++n; |
| 1861 | } |
| 1862 | } |
Tim Peters | 16a77ad | 2001-09-08 04:00:12 +0000 | [diff] [blame] | 1863 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1864 | if (operation != PY_ITERSEARCH_INDEX) |
| 1865 | goto Done; |
Tim Peters | 16a77ad | 2001-09-08 04:00:12 +0000 | [diff] [blame] | 1866 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1867 | PyErr_SetString(PyExc_ValueError, |
| 1868 | "sequence.index(x): x not in sequence"); |
| 1869 | /* fall into failure code */ |
Tim Peters | 16a77ad | 2001-09-08 04:00:12 +0000 | [diff] [blame] | 1870 | Fail: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1871 | n = -1; |
| 1872 | /* fall through */ |
Tim Peters | 16a77ad | 2001-09-08 04:00:12 +0000 | [diff] [blame] | 1873 | Done: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1874 | Py_DECREF(it); |
| 1875 | return n; |
Tim Peters | 75f8e35 | 2001-05-05 11:33:43 +0000 | [diff] [blame] | 1876 | |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1877 | } |
| 1878 | |
Tim Peters | 16a77ad | 2001-09-08 04:00:12 +0000 | [diff] [blame] | 1879 | /* Return # of times o appears in s. */ |
Neal Norwitz | 1fc4b77 | 2006-03-04 18:49:58 +0000 | [diff] [blame] | 1880 | Py_ssize_t |
Tim Peters | 16a77ad | 2001-09-08 04:00:12 +0000 | [diff] [blame] | 1881 | PySequence_Count(PyObject *s, PyObject *o) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1882 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1883 | return _PySequence_IterSearch(s, o, PY_ITERSEARCH_COUNT); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1884 | } |
| 1885 | |
Tim Peters | cb8d368 | 2001-05-05 21:05:01 +0000 | [diff] [blame] | 1886 | /* Return -1 if error; 1 if ob in seq; 0 if ob not in seq. |
Tim Peters | 16a77ad | 2001-09-08 04:00:12 +0000 | [diff] [blame] | 1887 | * Use sq_contains if possible, else defer to _PySequence_IterSearch(). |
Tim Peters | cb8d368 | 2001-05-05 21:05:01 +0000 | [diff] [blame] | 1888 | */ |
| 1889 | int |
| 1890 | PySequence_Contains(PyObject *seq, PyObject *ob) |
| 1891 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1892 | Py_ssize_t result; |
| 1893 | PySequenceMethods *sqm = seq->ob_type->tp_as_sequence; |
| 1894 | if (sqm != NULL && sqm->sq_contains != NULL) |
| 1895 | return (*sqm->sq_contains)(seq, ob); |
| 1896 | result = _PySequence_IterSearch(seq, ob, PY_ITERSEARCH_CONTAINS); |
| 1897 | return Py_SAFE_DOWNCAST(result, Py_ssize_t, int); |
Tim Peters | cb8d368 | 2001-05-05 21:05:01 +0000 | [diff] [blame] | 1898 | } |
| 1899 | |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1900 | /* Backwards compatibility */ |
| 1901 | #undef PySequence_In |
| 1902 | int |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1903 | PySequence_In(PyObject *w, PyObject *v) |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1904 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1905 | return PySequence_Contains(w, v); |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1906 | } |
| 1907 | |
Neal Norwitz | 1fc4b77 | 2006-03-04 18:49:58 +0000 | [diff] [blame] | 1908 | Py_ssize_t |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1909 | PySequence_Index(PyObject *s, PyObject *o) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1910 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1911 | return _PySequence_IterSearch(s, o, PY_ITERSEARCH_INDEX); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1912 | } |
| 1913 | |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1914 | /* Operations on mappings */ |
| 1915 | |
| 1916 | int |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1917 | PyMapping_Check(PyObject *o) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1918 | { |
Benjamin Peterson | 2199227 | 2011-12-28 12:01:31 -0600 | [diff] [blame] | 1919 | return o && o->ob_type->tp_as_mapping && |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1920 | o->ob_type->tp_as_mapping->mp_subscript; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1921 | } |
| 1922 | |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1923 | Py_ssize_t |
Jeremy Hylton | 6253f83 | 2000-07-12 12:56:19 +0000 | [diff] [blame] | 1924 | PyMapping_Size(PyObject *o) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1925 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1926 | PyMappingMethods *m; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1927 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1928 | if (o == NULL) { |
| 1929 | null_error(); |
| 1930 | return -1; |
| 1931 | } |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1932 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1933 | m = o->ob_type->tp_as_mapping; |
| 1934 | if (m && m->mp_length) |
| 1935 | return m->mp_length(o); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1936 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1937 | type_error("object of type '%.200s' has no len()", o); |
| 1938 | return -1; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1939 | } |
| 1940 | |
Marc-André Lemburg | cf5f358 | 2000-07-17 09:22:55 +0000 | [diff] [blame] | 1941 | #undef PyMapping_Length |
Martin v. Löwis | 18e1655 | 2006-02-15 17:27:45 +0000 | [diff] [blame] | 1942 | Py_ssize_t |
Marc-André Lemburg | cf5f358 | 2000-07-17 09:22:55 +0000 | [diff] [blame] | 1943 | PyMapping_Length(PyObject *o) |
| 1944 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1945 | return PyMapping_Size(o); |
Marc-André Lemburg | cf5f358 | 2000-07-17 09:22:55 +0000 | [diff] [blame] | 1946 | } |
| 1947 | #define PyMapping_Length PyMapping_Size |
| 1948 | |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1949 | PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1950 | PyMapping_GetItemString(PyObject *o, char *key) |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1951 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1952 | PyObject *okey, *r; |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1953 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1954 | if (key == NULL) |
| 1955 | return null_error(); |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1956 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1957 | okey = PyUnicode_FromString(key); |
| 1958 | if (okey == NULL) |
| 1959 | return NULL; |
| 1960 | r = PyObject_GetItem(o, okey); |
| 1961 | Py_DECREF(okey); |
| 1962 | return r; |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1963 | } |
| 1964 | |
| 1965 | int |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1966 | PyMapping_SetItemString(PyObject *o, char *key, PyObject *value) |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1967 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1968 | PyObject *okey; |
| 1969 | int r; |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1970 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1971 | if (key == NULL) { |
| 1972 | null_error(); |
| 1973 | return -1; |
| 1974 | } |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1975 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1976 | okey = PyUnicode_FromString(key); |
| 1977 | if (okey == NULL) |
| 1978 | return -1; |
| 1979 | r = PyObject_SetItem(o, okey, value); |
| 1980 | Py_DECREF(okey); |
| 1981 | return r; |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1982 | } |
| 1983 | |
| 1984 | int |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1985 | PyMapping_HasKeyString(PyObject *o, char *key) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1986 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1987 | PyObject *v; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1988 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 1989 | v = PyMapping_GetItemString(o, key); |
| 1990 | if (v) { |
| 1991 | Py_DECREF(v); |
| 1992 | return 1; |
| 1993 | } |
| 1994 | PyErr_Clear(); |
| 1995 | return 0; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 1996 | } |
| 1997 | |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 1998 | int |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 1999 | PyMapping_HasKey(PyObject *o, PyObject *key) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2000 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2001 | PyObject *v; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2002 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2003 | v = PyObject_GetItem(o, key); |
| 2004 | if (v) { |
| 2005 | Py_DECREF(v); |
| 2006 | return 1; |
| 2007 | } |
| 2008 | PyErr_Clear(); |
| 2009 | return 0; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2010 | } |
| 2011 | |
Guido van Rossum | cc2b016 | 2007-02-11 06:12:03 +0000 | [diff] [blame] | 2012 | PyObject * |
| 2013 | PyMapping_Keys(PyObject *o) |
| 2014 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2015 | PyObject *keys; |
| 2016 | PyObject *fast; |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 2017 | _Py_IDENTIFIER(keys); |
Guido van Rossum | cc2b016 | 2007-02-11 06:12:03 +0000 | [diff] [blame] | 2018 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2019 | if (PyDict_CheckExact(o)) |
| 2020 | return PyDict_Keys(o); |
Martin v. Löwis | afe55bb | 2011-10-09 10:38:36 +0200 | [diff] [blame] | 2021 | keys = _PyObject_CallMethodId(o, &PyId_keys, NULL); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2022 | if (keys == NULL) |
| 2023 | return NULL; |
| 2024 | fast = PySequence_Fast(keys, "o.keys() are not iterable"); |
| 2025 | Py_DECREF(keys); |
| 2026 | return fast; |
Guido van Rossum | cc2b016 | 2007-02-11 06:12:03 +0000 | [diff] [blame] | 2027 | } |
| 2028 | |
| 2029 | PyObject * |
| 2030 | PyMapping_Items(PyObject *o) |
| 2031 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2032 | PyObject *items; |
| 2033 | PyObject *fast; |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 2034 | _Py_IDENTIFIER(items); |
Guido van Rossum | cc2b016 | 2007-02-11 06:12:03 +0000 | [diff] [blame] | 2035 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2036 | if (PyDict_CheckExact(o)) |
| 2037 | return PyDict_Items(o); |
Martin v. Löwis | afe55bb | 2011-10-09 10:38:36 +0200 | [diff] [blame] | 2038 | items = _PyObject_CallMethodId(o, &PyId_items, NULL); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2039 | if (items == NULL) |
| 2040 | return NULL; |
| 2041 | fast = PySequence_Fast(items, "o.items() are not iterable"); |
| 2042 | Py_DECREF(items); |
| 2043 | return fast; |
Guido van Rossum | cc2b016 | 2007-02-11 06:12:03 +0000 | [diff] [blame] | 2044 | } |
| 2045 | |
| 2046 | PyObject * |
| 2047 | PyMapping_Values(PyObject *o) |
| 2048 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2049 | PyObject *values; |
| 2050 | PyObject *fast; |
Martin v. Löwis | bd928fe | 2011-10-14 10:20:37 +0200 | [diff] [blame] | 2051 | _Py_IDENTIFIER(values); |
Guido van Rossum | cc2b016 | 2007-02-11 06:12:03 +0000 | [diff] [blame] | 2052 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2053 | if (PyDict_CheckExact(o)) |
| 2054 | return PyDict_Values(o); |
Martin v. Löwis | afe55bb | 2011-10-09 10:38:36 +0200 | [diff] [blame] | 2055 | values = _PyObject_CallMethodId(o, &PyId_values, NULL); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2056 | if (values == NULL) |
| 2057 | return NULL; |
| 2058 | fast = PySequence_Fast(values, "o.values() are not iterable"); |
| 2059 | Py_DECREF(values); |
| 2060 | return fast; |
Guido van Rossum | cc2b016 | 2007-02-11 06:12:03 +0000 | [diff] [blame] | 2061 | } |
| 2062 | |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 2063 | /* Operations on callable objects */ |
| 2064 | |
| 2065 | /* XXX PyCallable_Check() is in object.c */ |
| 2066 | |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2067 | PyObject * |
Fred Drake | 7991247 | 2000-07-09 04:06:11 +0000 | [diff] [blame] | 2068 | PyObject_CallObject(PyObject *o, PyObject *a) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2069 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2070 | return PyEval_CallObjectWithKeywords(o, a, NULL); |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 2071 | } |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2072 | |
| 2073 | PyObject * |
Tim Peters | 6d6c1a3 | 2001-08-02 04:15:00 +0000 | [diff] [blame] | 2074 | PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) |
| 2075 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2076 | ternaryfunc call; |
Tim Peters | 6d6c1a3 | 2001-08-02 04:15:00 +0000 | [diff] [blame] | 2077 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2078 | if ((call = func->ob_type->tp_call) != NULL) { |
| 2079 | PyObject *result; |
| 2080 | if (Py_EnterRecursiveCall(" while calling a Python object")) |
| 2081 | return NULL; |
| 2082 | result = (*call)(func, arg, kw); |
| 2083 | Py_LeaveRecursiveCall(); |
| 2084 | if (result == NULL && !PyErr_Occurred()) |
| 2085 | PyErr_SetString( |
| 2086 | PyExc_SystemError, |
| 2087 | "NULL result without error in PyObject_Call"); |
| 2088 | return result; |
| 2089 | } |
| 2090 | PyErr_Format(PyExc_TypeError, "'%.200s' object is not callable", |
| 2091 | func->ob_type->tp_name); |
| 2092 | return NULL; |
Tim Peters | 6d6c1a3 | 2001-08-02 04:15:00 +0000 | [diff] [blame] | 2093 | } |
| 2094 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2095 | static PyObject* |
| 2096 | call_function_tail(PyObject *callable, PyObject *args) |
| 2097 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2098 | PyObject *retval; |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2099 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2100 | if (args == NULL) |
| 2101 | return NULL; |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2102 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2103 | if (!PyTuple_Check(args)) { |
| 2104 | PyObject *a; |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2105 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2106 | a = PyTuple_New(1); |
| 2107 | if (a == NULL) { |
| 2108 | Py_DECREF(args); |
| 2109 | return NULL; |
| 2110 | } |
| 2111 | PyTuple_SET_ITEM(a, 0, args); |
| 2112 | args = a; |
| 2113 | } |
| 2114 | retval = PyObject_Call(callable, args, NULL); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2115 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2116 | Py_DECREF(args); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2117 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2118 | return retval; |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2119 | } |
| 2120 | |
Tim Peters | 6d6c1a3 | 2001-08-02 04:15:00 +0000 | [diff] [blame] | 2121 | PyObject * |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 2122 | PyObject_CallFunction(PyObject *callable, char *format, ...) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2123 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2124 | va_list va; |
| 2125 | PyObject *args; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2126 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2127 | if (callable == NULL) |
| 2128 | return null_error(); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2129 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2130 | if (format && *format) { |
| 2131 | va_start(va, format); |
| 2132 | args = Py_VaBuildValue(format, va); |
| 2133 | va_end(va); |
| 2134 | } |
| 2135 | else |
| 2136 | args = PyTuple_New(0); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2137 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2138 | return call_function_tail(callable, args); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2139 | } |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 2140 | |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2141 | PyObject * |
| 2142 | _PyObject_CallFunction_SizeT(PyObject *callable, char *format, ...) |
| 2143 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2144 | va_list va; |
| 2145 | PyObject *args; |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 2146 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2147 | if (callable == NULL) |
| 2148 | return null_error(); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2149 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2150 | if (format && *format) { |
| 2151 | va_start(va, format); |
| 2152 | args = _Py_VaBuildValue_SizeT(format, va); |
| 2153 | va_end(va); |
| 2154 | } |
| 2155 | else |
| 2156 | args = PyTuple_New(0); |
Guido van Rossum | cea1c8c | 1998-05-22 00:47:05 +0000 | [diff] [blame] | 2157 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2158 | return call_function_tail(callable, args); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2159 | } |
| 2160 | |
Martin v. Löwis | afe55bb | 2011-10-09 10:38:36 +0200 | [diff] [blame] | 2161 | static PyObject* |
| 2162 | callmethod(PyObject* func, char *format, va_list va, int is_size_t) |
| 2163 | { |
| 2164 | PyObject *retval = NULL; |
| 2165 | PyObject *args; |
| 2166 | |
| 2167 | if (!PyCallable_Check(func)) { |
| 2168 | type_error("attribute of type '%.200s' is not callable", func); |
| 2169 | goto exit; |
| 2170 | } |
| 2171 | |
| 2172 | if (format && *format) { |
| 2173 | if (is_size_t) |
| 2174 | args = _Py_VaBuildValue_SizeT(format, va); |
| 2175 | else |
| 2176 | args = Py_VaBuildValue(format, va); |
| 2177 | } |
| 2178 | else |
| 2179 | args = PyTuple_New(0); |
| 2180 | |
| 2181 | retval = call_function_tail(func, args); |
| 2182 | |
| 2183 | exit: |
| 2184 | /* args gets consumed in call_function_tail */ |
| 2185 | Py_XDECREF(func); |
| 2186 | |
| 2187 | return retval; |
| 2188 | } |
| 2189 | |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2190 | PyObject * |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2191 | PyObject_CallMethod(PyObject *o, char *name, char *format, ...) |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2192 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2193 | va_list va; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2194 | PyObject *func = NULL; |
| 2195 | PyObject *retval = NULL; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2196 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2197 | if (o == NULL || name == NULL) |
| 2198 | return null_error(); |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2199 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2200 | func = PyObject_GetAttrString(o, name); |
| 2201 | if (func == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2202 | return 0; |
| 2203 | } |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2204 | |
Martin v. Löwis | afe55bb | 2011-10-09 10:38:36 +0200 | [diff] [blame] | 2205 | va_start(va, format); |
| 2206 | retval = callmethod(func, format, va, 0); |
| 2207 | va_end(va); |
| 2208 | return retval; |
| 2209 | } |
| 2210 | |
| 2211 | PyObject * |
| 2212 | _PyObject_CallMethodId(PyObject *o, _Py_Identifier *name, char *format, ...) |
| 2213 | { |
| 2214 | va_list va; |
| 2215 | PyObject *func = NULL; |
| 2216 | PyObject *retval = NULL; |
| 2217 | |
| 2218 | if (o == NULL || name == NULL) |
| 2219 | return null_error(); |
| 2220 | |
| 2221 | func = _PyObject_GetAttrId(o, name); |
| 2222 | if (func == NULL) { |
Martin v. Löwis | afe55bb | 2011-10-09 10:38:36 +0200 | [diff] [blame] | 2223 | return 0; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2224 | } |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2225 | |
Martin v. Löwis | afe55bb | 2011-10-09 10:38:36 +0200 | [diff] [blame] | 2226 | va_start(va, format); |
| 2227 | retval = callmethod(func, format, va, 0); |
| 2228 | va_end(va); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2229 | return retval; |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2230 | } |
| 2231 | |
| 2232 | PyObject * |
| 2233 | _PyObject_CallMethod_SizeT(PyObject *o, char *name, char *format, ...) |
| 2234 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2235 | va_list va; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2236 | PyObject *func = NULL; |
Martin v. Löwis | afe55bb | 2011-10-09 10:38:36 +0200 | [diff] [blame] | 2237 | PyObject *retval; |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2238 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2239 | if (o == NULL || name == NULL) |
| 2240 | return null_error(); |
Thomas Wouters | 49fd7fa | 2006-04-21 10:40:58 +0000 | [diff] [blame] | 2241 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2242 | func = PyObject_GetAttrString(o, name); |
| 2243 | if (func == NULL) { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2244 | return 0; |
| 2245 | } |
Martin v. Löwis | afe55bb | 2011-10-09 10:38:36 +0200 | [diff] [blame] | 2246 | va_start(va, format); |
| 2247 | retval = callmethod(func, format, va, 1); |
| 2248 | va_end(va); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2249 | return retval; |
Guido van Rossum | e15dee5 | 1995-07-18 14:12:02 +0000 | [diff] [blame] | 2250 | } |
Guido van Rossum | 823649d | 2001-03-21 18:40:58 +0000 | [diff] [blame] | 2251 | |
Martin v. Löwis | afe55bb | 2011-10-09 10:38:36 +0200 | [diff] [blame] | 2252 | PyObject * |
| 2253 | _PyObject_CallMethodId_SizeT(PyObject *o, _Py_Identifier *name, char *format, ...) |
| 2254 | { |
| 2255 | va_list va; |
| 2256 | PyObject *func = NULL; |
| 2257 | PyObject *retval; |
| 2258 | |
| 2259 | if (o == NULL || name == NULL) |
| 2260 | return null_error(); |
| 2261 | |
| 2262 | func = _PyObject_GetAttrId(o, name); |
| 2263 | if (func == NULL) { |
Martin v. Löwis | afe55bb | 2011-10-09 10:38:36 +0200 | [diff] [blame] | 2264 | return NULL; |
| 2265 | } |
| 2266 | va_start(va, format); |
| 2267 | retval = callmethod(func, format, va, 1); |
| 2268 | va_end(va); |
| 2269 | return retval; |
| 2270 | } |
Guido van Rossum | 823649d | 2001-03-21 18:40:58 +0000 | [diff] [blame] | 2271 | |
Fred Drake | b421b8c | 2001-10-26 16:21:32 +0000 | [diff] [blame] | 2272 | static PyObject * |
Fred Drake | b0c079e | 2001-10-28 02:39:03 +0000 | [diff] [blame] | 2273 | objargs_mktuple(va_list va) |
Fred Drake | b421b8c | 2001-10-26 16:21:32 +0000 | [diff] [blame] | 2274 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2275 | int i, n = 0; |
| 2276 | va_list countva; |
| 2277 | PyObject *result, *tmp; |
Fred Drake | b421b8c | 2001-10-26 16:21:32 +0000 | [diff] [blame] | 2278 | |
Alexander Belopolsky | f0f4514 | 2010-08-11 17:31:17 +0000 | [diff] [blame] | 2279 | Py_VA_COPY(countva, va); |
Fred Drake | b421b8c | 2001-10-26 16:21:32 +0000 | [diff] [blame] | 2280 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2281 | while (((PyObject *)va_arg(countva, PyObject *)) != NULL) |
| 2282 | ++n; |
| 2283 | result = PyTuple_New(n); |
| 2284 | if (result != NULL && n > 0) { |
| 2285 | for (i = 0; i < n; ++i) { |
| 2286 | tmp = (PyObject *)va_arg(va, PyObject *); |
| 2287 | PyTuple_SET_ITEM(result, i, tmp); |
| 2288 | Py_INCREF(tmp); |
| 2289 | } |
| 2290 | } |
| 2291 | return result; |
Fred Drake | b421b8c | 2001-10-26 16:21:32 +0000 | [diff] [blame] | 2292 | } |
| 2293 | |
| 2294 | PyObject * |
Fred Drake | b0c079e | 2001-10-28 02:39:03 +0000 | [diff] [blame] | 2295 | PyObject_CallMethodObjArgs(PyObject *callable, PyObject *name, ...) |
Fred Drake | b421b8c | 2001-10-26 16:21:32 +0000 | [diff] [blame] | 2296 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2297 | PyObject *args, *tmp; |
| 2298 | va_list vargs; |
Fred Drake | b421b8c | 2001-10-26 16:21:32 +0000 | [diff] [blame] | 2299 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2300 | if (callable == NULL || name == NULL) |
| 2301 | return null_error(); |
Fred Drake | b421b8c | 2001-10-26 16:21:32 +0000 | [diff] [blame] | 2302 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2303 | callable = PyObject_GetAttr(callable, name); |
| 2304 | if (callable == NULL) |
| 2305 | return NULL; |
Fred Drake | b421b8c | 2001-10-26 16:21:32 +0000 | [diff] [blame] | 2306 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2307 | /* count the args */ |
| 2308 | va_start(vargs, name); |
| 2309 | args = objargs_mktuple(vargs); |
| 2310 | va_end(vargs); |
| 2311 | if (args == NULL) { |
| 2312 | Py_DECREF(callable); |
| 2313 | return NULL; |
| 2314 | } |
| 2315 | tmp = PyObject_Call(callable, args, NULL); |
| 2316 | Py_DECREF(args); |
| 2317 | Py_DECREF(callable); |
Fred Drake | b421b8c | 2001-10-26 16:21:32 +0000 | [diff] [blame] | 2318 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2319 | return tmp; |
Fred Drake | b421b8c | 2001-10-26 16:21:32 +0000 | [diff] [blame] | 2320 | } |
| 2321 | |
| 2322 | PyObject * |
Brett Cannon | fd07415 | 2012-04-14 14:10:13 -0400 | [diff] [blame] | 2323 | _PyObject_CallMethodObjIdArgs(PyObject *callable, |
| 2324 | struct _Py_Identifier *name, ...) |
| 2325 | { |
| 2326 | PyObject *args, *tmp; |
| 2327 | va_list vargs; |
| 2328 | |
| 2329 | if (callable == NULL || name == NULL) |
| 2330 | return null_error(); |
| 2331 | |
| 2332 | callable = _PyObject_GetAttrId(callable, name); |
| 2333 | if (callable == NULL) |
| 2334 | return NULL; |
| 2335 | |
| 2336 | /* count the args */ |
| 2337 | va_start(vargs, name); |
| 2338 | args = objargs_mktuple(vargs); |
| 2339 | va_end(vargs); |
| 2340 | if (args == NULL) { |
| 2341 | Py_DECREF(callable); |
| 2342 | return NULL; |
| 2343 | } |
| 2344 | tmp = PyObject_Call(callable, args, NULL); |
| 2345 | Py_DECREF(args); |
| 2346 | Py_DECREF(callable); |
| 2347 | |
| 2348 | return tmp; |
| 2349 | } |
| 2350 | |
| 2351 | PyObject * |
Fred Drake | b0c079e | 2001-10-28 02:39:03 +0000 | [diff] [blame] | 2352 | PyObject_CallFunctionObjArgs(PyObject *callable, ...) |
Fred Drake | b421b8c | 2001-10-26 16:21:32 +0000 | [diff] [blame] | 2353 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2354 | PyObject *args, *tmp; |
| 2355 | va_list vargs; |
Fred Drake | b421b8c | 2001-10-26 16:21:32 +0000 | [diff] [blame] | 2356 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2357 | if (callable == NULL) |
| 2358 | return null_error(); |
Fred Drake | b421b8c | 2001-10-26 16:21:32 +0000 | [diff] [blame] | 2359 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2360 | /* count the args */ |
| 2361 | va_start(vargs, callable); |
| 2362 | args = objargs_mktuple(vargs); |
| 2363 | va_end(vargs); |
| 2364 | if (args == NULL) |
| 2365 | return NULL; |
| 2366 | tmp = PyObject_Call(callable, args, NULL); |
| 2367 | Py_DECREF(args); |
Fred Drake | b421b8c | 2001-10-26 16:21:32 +0000 | [diff] [blame] | 2368 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2369 | return tmp; |
Fred Drake | b421b8c | 2001-10-26 16:21:32 +0000 | [diff] [blame] | 2370 | } |
| 2371 | |
| 2372 | |
Guido van Rossum | 823649d | 2001-03-21 18:40:58 +0000 | [diff] [blame] | 2373 | /* isinstance(), issubclass() */ |
| 2374 | |
Benjamin Peterson | 9fc9bf4 | 2012-03-20 23:26:41 -0400 | [diff] [blame] | 2375 | /* abstract_get_bases() has logically 4 return states: |
Barry Warsaw | f16951c | 2002-04-23 22:45:44 +0000 | [diff] [blame] | 2376 | * |
Barry Warsaw | f16951c | 2002-04-23 22:45:44 +0000 | [diff] [blame] | 2377 | * 1. getattr(cls, '__bases__') could raise an AttributeError |
| 2378 | * 2. getattr(cls, '__bases__') could raise some other exception |
| 2379 | * 3. getattr(cls, '__bases__') could return a tuple |
| 2380 | * 4. getattr(cls, '__bases__') could return something other than a tuple |
| 2381 | * |
| 2382 | * Only state #3 is a non-error state and only it returns a non-NULL object |
| 2383 | * (it returns the retrieved tuple). |
| 2384 | * |
| 2385 | * Any raised AttributeErrors are masked by clearing the exception and |
| 2386 | * returning NULL. If an object other than a tuple comes out of __bases__, |
| 2387 | * then again, the return value is NULL. So yes, these two situations |
| 2388 | * produce exactly the same results: NULL is returned and no error is set. |
| 2389 | * |
| 2390 | * If some exception other than AttributeError is raised, then NULL is also |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2391 | * returned, but the exception is not cleared. That's because we want the |
Barry Warsaw | f16951c | 2002-04-23 22:45:44 +0000 | [diff] [blame] | 2392 | * exception to be propagated along. |
| 2393 | * |
| 2394 | * Callers are expected to test for PyErr_Occurred() when the return value |
| 2395 | * is NULL to decide whether a valid exception should be propagated or not. |
| 2396 | * When there's no exception to propagate, it's customary for the caller to |
| 2397 | * set a TypeError. |
| 2398 | */ |
Neil Schemenauer | 6b47129 | 2001-10-18 03:18:43 +0000 | [diff] [blame] | 2399 | static PyObject * |
| 2400 | abstract_get_bases(PyObject *cls) |
Guido van Rossum | 823649d | 2001-03-21 18:40:58 +0000 | [diff] [blame] | 2401 | { |
Benjamin Peterson | 9fc9bf4 | 2012-03-20 23:26:41 -0400 | [diff] [blame] | 2402 | _Py_IDENTIFIER(__bases__); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2403 | PyObject *bases; |
Guido van Rossum | 823649d | 2001-03-21 18:40:58 +0000 | [diff] [blame] | 2404 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2405 | Py_ALLOW_RECURSION |
Benjamin Peterson | 9fc9bf4 | 2012-03-20 23:26:41 -0400 | [diff] [blame] | 2406 | bases = _PyObject_GetAttrId(cls, &PyId___bases__); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2407 | Py_END_ALLOW_RECURSION |
| 2408 | if (bases == NULL) { |
| 2409 | if (PyErr_ExceptionMatches(PyExc_AttributeError)) |
| 2410 | PyErr_Clear(); |
| 2411 | return NULL; |
| 2412 | } |
| 2413 | if (!PyTuple_Check(bases)) { |
| 2414 | Py_DECREF(bases); |
| 2415 | return NULL; |
| 2416 | } |
| 2417 | return bases; |
Neil Schemenauer | 6b47129 | 2001-10-18 03:18:43 +0000 | [diff] [blame] | 2418 | } |
| 2419 | |
| 2420 | |
| 2421 | static int |
| 2422 | abstract_issubclass(PyObject *derived, PyObject *cls) |
| 2423 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2424 | PyObject *bases = NULL; |
| 2425 | Py_ssize_t i, n; |
| 2426 | int r = 0; |
Neil Schemenauer | 6b47129 | 2001-10-18 03:18:43 +0000 | [diff] [blame] | 2427 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2428 | while (1) { |
| 2429 | if (derived == cls) |
| 2430 | return 1; |
| 2431 | bases = abstract_get_bases(derived); |
| 2432 | if (bases == NULL) { |
| 2433 | if (PyErr_Occurred()) |
| 2434 | return -1; |
| 2435 | return 0; |
| 2436 | } |
| 2437 | n = PyTuple_GET_SIZE(bases); |
| 2438 | if (n == 0) { |
| 2439 | Py_DECREF(bases); |
| 2440 | return 0; |
| 2441 | } |
| 2442 | /* Avoid recursivity in the single inheritance case */ |
| 2443 | if (n == 1) { |
| 2444 | derived = PyTuple_GET_ITEM(bases, 0); |
| 2445 | Py_DECREF(bases); |
| 2446 | continue; |
| 2447 | } |
| 2448 | for (i = 0; i < n; i++) { |
| 2449 | r = abstract_issubclass(PyTuple_GET_ITEM(bases, i), cls); |
| 2450 | if (r != 0) |
| 2451 | break; |
| 2452 | } |
| 2453 | Py_DECREF(bases); |
| 2454 | return r; |
| 2455 | } |
Guido van Rossum | 823649d | 2001-03-21 18:40:58 +0000 | [diff] [blame] | 2456 | } |
| 2457 | |
Walter Dörwald | d9a6ad3 | 2002-12-12 16:41:44 +0000 | [diff] [blame] | 2458 | static int |
| 2459 | check_class(PyObject *cls, const char *error) |
| 2460 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2461 | PyObject *bases = abstract_get_bases(cls); |
| 2462 | if (bases == NULL) { |
| 2463 | /* Do not mask errors. */ |
| 2464 | if (!PyErr_Occurred()) |
| 2465 | PyErr_SetString(PyExc_TypeError, error); |
| 2466 | return 0; |
| 2467 | } |
| 2468 | Py_DECREF(bases); |
| 2469 | return -1; |
Walter Dörwald | d9a6ad3 | 2002-12-12 16:41:44 +0000 | [diff] [blame] | 2470 | } |
| 2471 | |
Brett Cannon | 4f65331 | 2004-03-20 22:52:14 +0000 | [diff] [blame] | 2472 | static int |
Antoine Pitrou | ec569b7 | 2008-08-26 22:40:48 +0000 | [diff] [blame] | 2473 | recursive_isinstance(PyObject *inst, PyObject *cls) |
Guido van Rossum | 823649d | 2001-03-21 18:40:58 +0000 | [diff] [blame] | 2474 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2475 | PyObject *icls; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2476 | int retval = 0; |
Benjamin Peterson | 9fc9bf4 | 2012-03-20 23:26:41 -0400 | [diff] [blame] | 2477 | _Py_IDENTIFIER(__class__); |
Guido van Rossum | 03bc7d3 | 2003-02-12 03:32:58 +0000 | [diff] [blame] | 2478 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2479 | if (PyType_Check(cls)) { |
| 2480 | retval = PyObject_TypeCheck(inst, (PyTypeObject *)cls); |
| 2481 | if (retval == 0) { |
Benjamin Peterson | 9fc9bf4 | 2012-03-20 23:26:41 -0400 | [diff] [blame] | 2482 | PyObject *c = _PyObject_GetAttrId(inst, &PyId___class__); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2483 | if (c == NULL) { |
Benjamin Peterson | 72288d4 | 2010-11-20 17:21:08 +0000 | [diff] [blame] | 2484 | if (PyErr_ExceptionMatches(PyExc_AttributeError)) |
R. David Murray | 6bb9989 | 2010-11-20 16:33:30 +0000 | [diff] [blame] | 2485 | PyErr_Clear(); |
Benjamin Peterson | 72288d4 | 2010-11-20 17:21:08 +0000 | [diff] [blame] | 2486 | else |
R. David Murray | 6bb9989 | 2010-11-20 16:33:30 +0000 | [diff] [blame] | 2487 | retval = -1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2488 | } |
| 2489 | else { |
| 2490 | if (c != (PyObject *)(inst->ob_type) && |
| 2491 | PyType_Check(c)) |
| 2492 | retval = PyType_IsSubtype( |
| 2493 | (PyTypeObject *)c, |
| 2494 | (PyTypeObject *)cls); |
| 2495 | Py_DECREF(c); |
| 2496 | } |
| 2497 | } |
| 2498 | } |
| 2499 | else { |
| 2500 | if (!check_class(cls, |
Benjamin Peterson | e893af5 | 2010-06-28 19:43:42 +0000 | [diff] [blame] | 2501 | "isinstance() arg 2 must be a type or tuple of types")) |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2502 | return -1; |
Benjamin Peterson | 9fc9bf4 | 2012-03-20 23:26:41 -0400 | [diff] [blame] | 2503 | icls = _PyObject_GetAttrId(inst, &PyId___class__); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2504 | if (icls == NULL) { |
Benjamin Peterson | 72288d4 | 2010-11-20 17:21:08 +0000 | [diff] [blame] | 2505 | if (PyErr_ExceptionMatches(PyExc_AttributeError)) |
R. David Murray | 6bb9989 | 2010-11-20 16:33:30 +0000 | [diff] [blame] | 2506 | PyErr_Clear(); |
Benjamin Peterson | 72288d4 | 2010-11-20 17:21:08 +0000 | [diff] [blame] | 2507 | else |
R. David Murray | 6bb9989 | 2010-11-20 16:33:30 +0000 | [diff] [blame] | 2508 | retval = -1; |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2509 | } |
| 2510 | else { |
| 2511 | retval = abstract_issubclass(icls, cls); |
| 2512 | Py_DECREF(icls); |
| 2513 | } |
| 2514 | } |
Guido van Rossum | 823649d | 2001-03-21 18:40:58 +0000 | [diff] [blame] | 2515 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2516 | return retval; |
Guido van Rossum | 823649d | 2001-03-21 18:40:58 +0000 | [diff] [blame] | 2517 | } |
| 2518 | |
| 2519 | int |
Brett Cannon | 4f65331 | 2004-03-20 22:52:14 +0000 | [diff] [blame] | 2520 | PyObject_IsInstance(PyObject *inst, PyObject *cls) |
| 2521 | { |
Benjamin Peterson | ce79852 | 2012-01-22 11:24:29 -0500 | [diff] [blame] | 2522 | _Py_IDENTIFIER(__instancecheck__); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2523 | PyObject *checker; |
Christian Heimes | d5e2b6f | 2008-03-19 21:50:51 +0000 | [diff] [blame] | 2524 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2525 | /* Quick test for an exact match */ |
| 2526 | if (Py_TYPE(inst) == (PyTypeObject *)cls) |
| 2527 | return 1; |
Christian Heimes | d5e2b6f | 2008-03-19 21:50:51 +0000 | [diff] [blame] | 2528 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2529 | if (PyTuple_Check(cls)) { |
| 2530 | Py_ssize_t i; |
| 2531 | Py_ssize_t n; |
| 2532 | int r = 0; |
Antoine Pitrou | ec569b7 | 2008-08-26 22:40:48 +0000 | [diff] [blame] | 2533 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2534 | if (Py_EnterRecursiveCall(" in __instancecheck__")) |
| 2535 | return -1; |
| 2536 | n = PyTuple_GET_SIZE(cls); |
| 2537 | for (i = 0; i < n; ++i) { |
| 2538 | PyObject *item = PyTuple_GET_ITEM(cls, i); |
| 2539 | r = PyObject_IsInstance(inst, item); |
| 2540 | if (r != 0) |
| 2541 | /* either found it, or got an error */ |
| 2542 | break; |
| 2543 | } |
| 2544 | Py_LeaveRecursiveCall(); |
| 2545 | return r; |
| 2546 | } |
Benjamin Peterson | 88fe5f9 | 2009-05-16 21:55:24 +0000 | [diff] [blame] | 2547 | |
Benjamin Peterson | ce79852 | 2012-01-22 11:24:29 -0500 | [diff] [blame] | 2548 | checker = _PyObject_LookupSpecial(cls, &PyId___instancecheck__); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2549 | if (checker != NULL) { |
| 2550 | PyObject *res; |
| 2551 | int ok = -1; |
| 2552 | if (Py_EnterRecursiveCall(" in __instancecheck__")) { |
| 2553 | Py_DECREF(checker); |
| 2554 | return ok; |
| 2555 | } |
| 2556 | res = PyObject_CallFunctionObjArgs(checker, inst, NULL); |
| 2557 | Py_LeaveRecursiveCall(); |
| 2558 | Py_DECREF(checker); |
| 2559 | if (res != NULL) { |
| 2560 | ok = PyObject_IsTrue(res); |
| 2561 | Py_DECREF(res); |
| 2562 | } |
| 2563 | return ok; |
| 2564 | } |
| 2565 | else if (PyErr_Occurred()) |
| 2566 | return -1; |
| 2567 | return recursive_isinstance(inst, cls); |
Brett Cannon | 4f65331 | 2004-03-20 22:52:14 +0000 | [diff] [blame] | 2568 | } |
| 2569 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2570 | static int |
Antoine Pitrou | ec569b7 | 2008-08-26 22:40:48 +0000 | [diff] [blame] | 2571 | recursive_issubclass(PyObject *derived, PyObject *cls) |
Guido van Rossum | 823649d | 2001-03-21 18:40:58 +0000 | [diff] [blame] | 2572 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2573 | if (PyType_Check(cls) && PyType_Check(derived)) { |
| 2574 | /* Fast path (non-recursive) */ |
| 2575 | return PyType_IsSubtype((PyTypeObject *)derived, (PyTypeObject *)cls); |
| 2576 | } |
| 2577 | if (!check_class(derived, |
| 2578 | "issubclass() arg 1 must be a class")) |
| 2579 | return -1; |
| 2580 | if (!check_class(cls, |
| 2581 | "issubclass() arg 2 must be a class" |
| 2582 | " or tuple of classes")) |
| 2583 | return -1; |
Guido van Rossum | 823649d | 2001-03-21 18:40:58 +0000 | [diff] [blame] | 2584 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2585 | return abstract_issubclass(derived, cls); |
Guido van Rossum | 823649d | 2001-03-21 18:40:58 +0000 | [diff] [blame] | 2586 | } |
Guido van Rossum | 59d1d2b | 2001-04-20 19:13:02 +0000 | [diff] [blame] | 2587 | |
Brett Cannon | 4f65331 | 2004-03-20 22:52:14 +0000 | [diff] [blame] | 2588 | int |
| 2589 | PyObject_IsSubclass(PyObject *derived, PyObject *cls) |
| 2590 | { |
Benjamin Peterson | ce79852 | 2012-01-22 11:24:29 -0500 | [diff] [blame] | 2591 | _Py_IDENTIFIER(__subclasscheck__); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2592 | PyObject *checker; |
Georg Brandl | dcfe8e4 | 2009-05-17 08:22:45 +0000 | [diff] [blame] | 2593 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2594 | if (PyTuple_Check(cls)) { |
| 2595 | Py_ssize_t i; |
| 2596 | Py_ssize_t n; |
| 2597 | int r = 0; |
Antoine Pitrou | ec569b7 | 2008-08-26 22:40:48 +0000 | [diff] [blame] | 2598 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2599 | if (Py_EnterRecursiveCall(" in __subclasscheck__")) |
| 2600 | return -1; |
| 2601 | n = PyTuple_GET_SIZE(cls); |
| 2602 | for (i = 0; i < n; ++i) { |
| 2603 | PyObject *item = PyTuple_GET_ITEM(cls, i); |
| 2604 | r = PyObject_IsSubclass(derived, item); |
| 2605 | if (r != 0) |
| 2606 | /* either found it, or got an error */ |
| 2607 | break; |
| 2608 | } |
| 2609 | Py_LeaveRecursiveCall(); |
| 2610 | return r; |
| 2611 | } |
Benjamin Peterson | 88fe5f9 | 2009-05-16 21:55:24 +0000 | [diff] [blame] | 2612 | |
Benjamin Peterson | ce79852 | 2012-01-22 11:24:29 -0500 | [diff] [blame] | 2613 | checker = _PyObject_LookupSpecial(cls, &PyId___subclasscheck__); |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2614 | if (checker != NULL) { |
| 2615 | PyObject *res; |
| 2616 | int ok = -1; |
| 2617 | if (Py_EnterRecursiveCall(" in __subclasscheck__")) { |
| 2618 | Py_DECREF(checker); |
| 2619 | return ok; |
| 2620 | } |
| 2621 | res = PyObject_CallFunctionObjArgs(checker, derived, NULL); |
| 2622 | Py_LeaveRecursiveCall(); |
| 2623 | Py_DECREF(checker); |
| 2624 | if (res != NULL) { |
| 2625 | ok = PyObject_IsTrue(res); |
| 2626 | Py_DECREF(res); |
| 2627 | } |
| 2628 | return ok; |
| 2629 | } |
| 2630 | else if (PyErr_Occurred()) |
| 2631 | return -1; |
| 2632 | return recursive_issubclass(derived, cls); |
Antoine Pitrou | ec569b7 | 2008-08-26 22:40:48 +0000 | [diff] [blame] | 2633 | } |
| 2634 | |
| 2635 | int |
| 2636 | _PyObject_RealIsInstance(PyObject *inst, PyObject *cls) |
| 2637 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2638 | return recursive_isinstance(inst, cls); |
Antoine Pitrou | ec569b7 | 2008-08-26 22:40:48 +0000 | [diff] [blame] | 2639 | } |
| 2640 | |
| 2641 | int |
| 2642 | _PyObject_RealIsSubclass(PyObject *derived, PyObject *cls) |
| 2643 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2644 | return recursive_issubclass(derived, cls); |
Brett Cannon | 4f65331 | 2004-03-20 22:52:14 +0000 | [diff] [blame] | 2645 | } |
| 2646 | |
| 2647 | |
Guido van Rossum | 59d1d2b | 2001-04-20 19:13:02 +0000 | [diff] [blame] | 2648 | PyObject * |
| 2649 | PyObject_GetIter(PyObject *o) |
| 2650 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2651 | PyTypeObject *t = o->ob_type; |
| 2652 | getiterfunc f = NULL; |
| 2653 | f = t->tp_iter; |
| 2654 | if (f == NULL) { |
| 2655 | if (PySequence_Check(o)) |
| 2656 | return PySeqIter_New(o); |
| 2657 | return type_error("'%.200s' object is not iterable", o); |
| 2658 | } |
| 2659 | else { |
| 2660 | PyObject *res = (*f)(o); |
| 2661 | if (res != NULL && !PyIter_Check(res)) { |
| 2662 | PyErr_Format(PyExc_TypeError, |
| 2663 | "iter() returned non-iterator " |
| 2664 | "of type '%.100s'", |
| 2665 | res->ob_type->tp_name); |
| 2666 | Py_DECREF(res); |
| 2667 | res = NULL; |
| 2668 | } |
| 2669 | return res; |
| 2670 | } |
Guido van Rossum | 213c7a6 | 2001-04-23 14:08:49 +0000 | [diff] [blame] | 2671 | } |
| 2672 | |
Tim Peters | f4848da | 2001-05-05 00:14:56 +0000 | [diff] [blame] | 2673 | /* Return next item. |
| 2674 | * If an error occurs, return NULL. PyErr_Occurred() will be true. |
| 2675 | * If the iteration terminates normally, return NULL and clear the |
| 2676 | * PyExc_StopIteration exception (if it was set). PyErr_Occurred() |
| 2677 | * will be false. |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2678 | * Else return the next object. PyErr_Occurred() will be false. |
Tim Peters | f4848da | 2001-05-05 00:14:56 +0000 | [diff] [blame] | 2679 | */ |
Guido van Rossum | 213c7a6 | 2001-04-23 14:08:49 +0000 | [diff] [blame] | 2680 | PyObject * |
| 2681 | PyIter_Next(PyObject *iter) |
| 2682 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2683 | PyObject *result; |
| 2684 | result = (*iter->ob_type->tp_iternext)(iter); |
| 2685 | if (result == NULL && |
| 2686 | PyErr_Occurred() && |
| 2687 | PyErr_ExceptionMatches(PyExc_StopIteration)) |
| 2688 | PyErr_Clear(); |
| 2689 | return result; |
Guido van Rossum | 59d1d2b | 2001-04-20 19:13:02 +0000 | [diff] [blame] | 2690 | } |
Gregory P. Smith | fb94c5f | 2010-03-14 06:49:55 +0000 | [diff] [blame] | 2691 | |
| 2692 | |
| 2693 | /* |
| 2694 | * Flatten a sequence of bytes() objects into a C array of |
| 2695 | * NULL terminated string pointers with a NULL char* terminating the array. |
| 2696 | * (ie: an argv or env list) |
| 2697 | * |
| 2698 | * Memory allocated for the returned list is allocated using malloc() and MUST |
| 2699 | * be freed by the caller using a free() loop or _Py_FreeCharPArray(). |
| 2700 | */ |
| 2701 | char *const * |
| 2702 | _PySequence_BytesToCharpArray(PyObject* self) |
| 2703 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2704 | char **array; |
| 2705 | Py_ssize_t i, argc; |
| 2706 | PyObject *item = NULL; |
Gregory P. Smith | fb94c5f | 2010-03-14 06:49:55 +0000 | [diff] [blame] | 2707 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2708 | argc = PySequence_Size(self); |
| 2709 | if (argc == -1) |
| 2710 | return NULL; |
Gregory P. Smith | fb94c5f | 2010-03-14 06:49:55 +0000 | [diff] [blame] | 2711 | |
Stefan Krah | 7cacd2e | 2012-08-21 08:16:09 +0200 | [diff] [blame] | 2712 | assert(argc >= 0); |
| 2713 | |
| 2714 | if ((size_t)argc > (PY_SSIZE_T_MAX-sizeof(char *)) / sizeof(char *)) { |
| 2715 | PyErr_NoMemory(); |
| 2716 | return NULL; |
| 2717 | } |
| 2718 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2719 | array = malloc((argc + 1) * sizeof(char *)); |
| 2720 | if (array == NULL) { |
| 2721 | PyErr_NoMemory(); |
| 2722 | return NULL; |
| 2723 | } |
| 2724 | for (i = 0; i < argc; ++i) { |
| 2725 | char *data; |
| 2726 | item = PySequence_GetItem(self, i); |
Stefan Krah | fd24f9e | 2012-08-20 11:04:24 +0200 | [diff] [blame] | 2727 | if (item == NULL) { |
| 2728 | /* NULL terminate before freeing. */ |
| 2729 | array[i] = NULL; |
| 2730 | goto fail; |
| 2731 | } |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2732 | data = PyBytes_AsString(item); |
| 2733 | if (data == NULL) { |
| 2734 | /* NULL terminate before freeing. */ |
| 2735 | array[i] = NULL; |
| 2736 | goto fail; |
| 2737 | } |
| 2738 | array[i] = strdup(data); |
| 2739 | if (!array[i]) { |
| 2740 | PyErr_NoMemory(); |
| 2741 | goto fail; |
| 2742 | } |
| 2743 | Py_DECREF(item); |
| 2744 | } |
| 2745 | array[argc] = NULL; |
Gregory P. Smith | fb94c5f | 2010-03-14 06:49:55 +0000 | [diff] [blame] | 2746 | |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2747 | return array; |
Gregory P. Smith | fb94c5f | 2010-03-14 06:49:55 +0000 | [diff] [blame] | 2748 | |
| 2749 | fail: |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2750 | Py_XDECREF(item); |
| 2751 | _Py_FreeCharPArray(array); |
| 2752 | return NULL; |
Gregory P. Smith | fb94c5f | 2010-03-14 06:49:55 +0000 | [diff] [blame] | 2753 | } |
| 2754 | |
| 2755 | |
| 2756 | /* Free's a NULL terminated char** array of C strings. */ |
| 2757 | void |
| 2758 | _Py_FreeCharPArray(char *const array[]) |
| 2759 | { |
Antoine Pitrou | f95a1b3 | 2010-05-09 15:52:27 +0000 | [diff] [blame] | 2760 | Py_ssize_t i; |
| 2761 | for (i = 0; array[i] != NULL; ++i) { |
| 2762 | free(array[i]); |
| 2763 | } |
| 2764 | free((void*)array); |
Gregory P. Smith | fb94c5f | 2010-03-14 06:49:55 +0000 | [diff] [blame] | 2765 | } |