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7843261b TJB |
1 | /* Python interface to values. |
2 | ||
b811d2c2 | 3 | Copyright (C) 2008-2020 Free Software Foundation, Inc. |
7843261b TJB |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "charset.h" | |
22 | #include "value.h" | |
7843261b | 23 | #include "language.h" |
70100014 | 24 | #include "target-float.h" |
79a45b7d | 25 | #include "valprint.h" |
5374244e | 26 | #include "infcall.h" |
f9ffd4bb | 27 | #include "expression.h" |
03f17ccf | 28 | #include "cp-abi.h" |
49a8461d | 29 | #include "python.h" |
7843261b | 30 | |
7843261b TJB |
31 | #include "python-internal.h" |
32 | ||
33 | /* Even though Python scalar types directly map to host types, we use | |
b021a221 | 34 | target types here to remain consistent with the values system in |
7843261b TJB |
35 | GDB (which uses target arithmetic). */ |
36 | ||
37 | /* Python's integer type corresponds to C's long type. */ | |
d452c4bc | 38 | #define builtin_type_pyint builtin_type (python_gdbarch)->builtin_long |
7843261b TJB |
39 | |
40 | /* Python's float type corresponds to C's double type. */ | |
d452c4bc | 41 | #define builtin_type_pyfloat builtin_type (python_gdbarch)->builtin_double |
7843261b TJB |
42 | |
43 | /* Python's long type corresponds to C's long long type. */ | |
d452c4bc | 44 | #define builtin_type_pylong builtin_type (python_gdbarch)->builtin_long_long |
7843261b | 45 | |
595939de PM |
46 | /* Python's long type corresponds to C's long long type. Unsigned version. */ |
47 | #define builtin_type_upylong builtin_type \ | |
48 | (python_gdbarch)->builtin_unsigned_long_long | |
49 | ||
7843261b | 50 | #define builtin_type_pybool \ |
d452c4bc | 51 | language_bool_type (python_language, python_gdbarch) |
7843261b | 52 | |
3b7538c0 | 53 | #define builtin_type_pychar \ |
d452c4bc | 54 | language_string_char_type (python_language, python_gdbarch) |
3b7538c0 | 55 | |
4e7a5ef5 | 56 | typedef struct value_object { |
7843261b | 57 | PyObject_HEAD |
4e7a5ef5 TT |
58 | struct value_object *next; |
59 | struct value_object *prev; | |
7843261b | 60 | struct value *value; |
c0c6f777 | 61 | PyObject *address; |
2c74e833 | 62 | PyObject *type; |
03f17ccf | 63 | PyObject *dynamic_type; |
7843261b TJB |
64 | } value_object; |
65 | ||
4e7a5ef5 TT |
66 | /* List of all values which are currently exposed to Python. It is |
67 | maintained so that when an objfile is discarded, preserve_values | |
68 | can copy the values' types if needed. */ | |
69 | /* This variable is unnecessarily initialized to NULL in order to | |
70 | work around a linker bug on MacOS. */ | |
71 | static value_object *values_in_python = NULL; | |
72 | ||
7843261b TJB |
73 | /* Called by the Python interpreter when deallocating a value object. */ |
74 | static void | |
75 | valpy_dealloc (PyObject *obj) | |
76 | { | |
77 | value_object *self = (value_object *) obj; | |
78 | ||
4e7a5ef5 TT |
79 | /* Remove SELF from the global list. */ |
80 | if (self->prev) | |
81 | self->prev->next = self->next; | |
82 | else | |
83 | { | |
84 | gdb_assert (values_in_python == self); | |
85 | values_in_python = self->next; | |
86 | } | |
87 | if (self->next) | |
88 | self->next->prev = self->prev; | |
7843261b | 89 | |
22bc8444 | 90 | value_decref (self->value); |
c0c6f777 | 91 | |
2a3c71d6 TT |
92 | Py_XDECREF (self->address); |
93 | Py_XDECREF (self->type); | |
03f17ccf TT |
94 | Py_XDECREF (self->dynamic_type); |
95 | ||
9a27f2c6 | 96 | Py_TYPE (self)->tp_free (self); |
7843261b TJB |
97 | } |
98 | ||
4e7a5ef5 TT |
99 | /* Helper to push a Value object on the global list. */ |
100 | static void | |
101 | note_value (value_object *value_obj) | |
102 | { | |
103 | value_obj->next = values_in_python; | |
104 | if (value_obj->next) | |
105 | value_obj->next->prev = value_obj; | |
106 | value_obj->prev = NULL; | |
107 | values_in_python = value_obj; | |
108 | } | |
109 | ||
fe07eca5 KB |
110 | /* Convert a python object OBJ with type TYPE to a gdb value. The |
111 | python object in question must conform to the python buffer | |
112 | protocol. On success, return the converted value, otherwise | |
113 | nullptr. */ | |
114 | ||
115 | static struct value * | |
116 | convert_buffer_and_type_to_value (PyObject *obj, struct type *type) | |
117 | { | |
118 | Py_buffer_up buffer_up; | |
119 | Py_buffer py_buf; | |
120 | ||
121 | if (PyObject_CheckBuffer (obj) | |
122 | && PyObject_GetBuffer (obj, &py_buf, PyBUF_SIMPLE) == 0) | |
123 | { | |
124 | /* Got a buffer, py_buf, out of obj. Cause it to be released | |
125 | when it goes out of scope. */ | |
126 | buffer_up.reset (&py_buf); | |
127 | } | |
128 | else | |
129 | { | |
130 | PyErr_SetString (PyExc_TypeError, | |
131 | _("Object must support the python buffer protocol.")); | |
132 | return nullptr; | |
133 | } | |
134 | ||
135 | if (TYPE_LENGTH (type) > py_buf.len) | |
136 | { | |
137 | PyErr_SetString (PyExc_ValueError, | |
138 | _("Size of type is larger than that of buffer object.")); | |
139 | return nullptr; | |
140 | } | |
141 | ||
142 | return value_from_contents (type, (const gdb_byte *) py_buf.buf); | |
143 | } | |
144 | ||
8dc78533 JK |
145 | /* Called when a new gdb.Value object needs to be allocated. Returns NULL on |
146 | error, with a python exception set. */ | |
7843261b | 147 | static PyObject * |
fe07eca5 | 148 | valpy_new (PyTypeObject *subtype, PyObject *args, PyObject *kwargs) |
7843261b | 149 | { |
fe07eca5 KB |
150 | static const char *keywords[] = { "val", "type", NULL }; |
151 | PyObject *val_obj = nullptr; | |
152 | PyObject *type_obj = nullptr; | |
153 | ||
154 | if (!gdb_PyArg_ParseTupleAndKeywords (args, kwargs, "O|O", keywords, | |
155 | &val_obj, &type_obj)) | |
156 | return nullptr; | |
157 | ||
158 | struct type *type = nullptr; | |
7843261b | 159 | |
fe07eca5 | 160 | if (type_obj != nullptr) |
7843261b | 161 | { |
fe07eca5 KB |
162 | type = type_object_to_type (type_obj); |
163 | if (type == nullptr) | |
164 | { | |
165 | PyErr_SetString (PyExc_TypeError, | |
166 | _("type argument must be a gdb.Type.")); | |
167 | return nullptr; | |
168 | } | |
7843261b TJB |
169 | } |
170 | ||
fe07eca5 | 171 | value_object *value_obj = (value_object *) subtype->tp_alloc (subtype, 1); |
7843261b TJB |
172 | if (value_obj == NULL) |
173 | { | |
174 | PyErr_SetString (PyExc_MemoryError, _("Could not allocate memory to " | |
175 | "create Value object.")); | |
176 | return NULL; | |
177 | } | |
178 | ||
fe07eca5 KB |
179 | struct value *value; |
180 | ||
181 | if (type == nullptr) | |
182 | value = convert_value_from_python (val_obj); | |
183 | else | |
184 | value = convert_buffer_and_type_to_value (val_obj, type); | |
185 | ||
186 | if (value == nullptr) | |
7843261b TJB |
187 | { |
188 | subtype->tp_free (value_obj); | |
08c637de | 189 | return NULL; |
7843261b TJB |
190 | } |
191 | ||
22bc8444 | 192 | value_obj->value = release_value (value).release (); |
c0c6f777 | 193 | value_obj->address = NULL; |
2c74e833 | 194 | value_obj->type = NULL; |
03f17ccf | 195 | value_obj->dynamic_type = NULL; |
4e7a5ef5 | 196 | note_value (value_obj); |
7843261b TJB |
197 | |
198 | return (PyObject *) value_obj; | |
199 | } | |
200 | ||
4e7a5ef5 TT |
201 | /* Iterate over all the Value objects, calling preserve_one_value on |
202 | each. */ | |
203 | void | |
6dddc817 DE |
204 | gdbpy_preserve_values (const struct extension_language_defn *extlang, |
205 | struct objfile *objfile, htab_t copied_types) | |
4e7a5ef5 TT |
206 | { |
207 | value_object *iter; | |
208 | ||
209 | for (iter = values_in_python; iter; iter = iter->next) | |
210 | preserve_one_value (iter->value, objfile, copied_types); | |
211 | } | |
212 | ||
7843261b TJB |
213 | /* Given a value of a pointer type, apply the C unary * operator to it. */ |
214 | static PyObject * | |
215 | valpy_dereference (PyObject *self, PyObject *args) | |
216 | { | |
888fe1e1 | 217 | PyObject *result = NULL; |
7843261b | 218 | |
a70b8144 | 219 | try |
7843261b | 220 | { |
888fe1e1 | 221 | struct value *res_val; |
eb115069 | 222 | scoped_value_mark free_values; |
888fe1e1 | 223 | |
7843261b | 224 | res_val = value_ind (((value_object *) self)->value); |
888fe1e1 | 225 | result = value_to_value_object (res_val); |
7843261b | 226 | } |
230d2906 | 227 | catch (const gdb_exception &except) |
492d29ea PA |
228 | { |
229 | GDB_PY_HANDLE_EXCEPTION (except); | |
230 | } | |
7843261b | 231 | |
888fe1e1 | 232 | return result; |
7843261b TJB |
233 | } |
234 | ||
7b282c5a SCR |
235 | /* Given a value of a pointer type or a reference type, return the value |
236 | referenced. The difference between this function and valpy_dereference is | |
237 | that the latter applies * unary operator to a value, which need not always | |
238 | result in the value referenced. For example, for a value which is a reference | |
239 | to an 'int' pointer ('int *'), valpy_dereference will result in a value of | |
240 | type 'int' while valpy_referenced_value will result in a value of type | |
241 | 'int *'. */ | |
242 | ||
243 | static PyObject * | |
244 | valpy_referenced_value (PyObject *self, PyObject *args) | |
245 | { | |
7b282c5a SCR |
246 | PyObject *result = NULL; |
247 | ||
a70b8144 | 248 | try |
7b282c5a SCR |
249 | { |
250 | struct value *self_val, *res_val; | |
eb115069 | 251 | scoped_value_mark free_values; |
7b282c5a SCR |
252 | |
253 | self_val = ((value_object *) self)->value; | |
78134374 | 254 | switch (check_typedef (value_type (self_val))->code ()) |
7b282c5a SCR |
255 | { |
256 | case TYPE_CODE_PTR: | |
257 | res_val = value_ind (self_val); | |
258 | break; | |
259 | case TYPE_CODE_REF: | |
aa006118 | 260 | case TYPE_CODE_RVALUE_REF: |
7b282c5a SCR |
261 | res_val = coerce_ref (self_val); |
262 | break; | |
263 | default: | |
264 | error(_("Trying to get the referenced value from a value which is " | |
265 | "neither a pointer nor a reference.")); | |
266 | } | |
267 | ||
268 | result = value_to_value_object (res_val); | |
7b282c5a | 269 | } |
230d2906 | 270 | catch (const gdb_exception &except) |
492d29ea PA |
271 | { |
272 | GDB_PY_HANDLE_EXCEPTION (except); | |
273 | } | |
7b282c5a SCR |
274 | |
275 | return result; | |
276 | } | |
277 | ||
4c082a81 SC |
278 | /* Return a value which is a reference to the value. */ |
279 | ||
280 | static PyObject * | |
3fcf899d | 281 | valpy_reference_value (PyObject *self, PyObject *args, enum type_code refcode) |
4c082a81 SC |
282 | { |
283 | PyObject *result = NULL; | |
284 | ||
a70b8144 | 285 | try |
4c082a81 SC |
286 | { |
287 | struct value *self_val; | |
eb115069 | 288 | scoped_value_mark free_values; |
4c082a81 SC |
289 | |
290 | self_val = ((value_object *) self)->value; | |
3fcf899d | 291 | result = value_to_value_object (value_ref (self_val, refcode)); |
4c082a81 | 292 | } |
230d2906 | 293 | catch (const gdb_exception &except) |
4c082a81 SC |
294 | { |
295 | GDB_PY_HANDLE_EXCEPTION (except); | |
296 | } | |
4c082a81 SC |
297 | |
298 | return result; | |
299 | } | |
300 | ||
3fcf899d AV |
301 | static PyObject * |
302 | valpy_lvalue_reference_value (PyObject *self, PyObject *args) | |
303 | { | |
304 | return valpy_reference_value (self, args, TYPE_CODE_REF); | |
305 | } | |
306 | ||
307 | static PyObject * | |
308 | valpy_rvalue_reference_value (PyObject *self, PyObject *args) | |
309 | { | |
310 | return valpy_reference_value (self, args, TYPE_CODE_RVALUE_REF); | |
311 | } | |
312 | ||
4c082a81 SC |
313 | /* Return a "const" qualified version of the value. */ |
314 | ||
315 | static PyObject * | |
316 | valpy_const_value (PyObject *self, PyObject *args) | |
317 | { | |
318 | PyObject *result = NULL; | |
319 | ||
a70b8144 | 320 | try |
4c082a81 SC |
321 | { |
322 | struct value *self_val, *res_val; | |
eb115069 | 323 | scoped_value_mark free_values; |
4c082a81 SC |
324 | |
325 | self_val = ((value_object *) self)->value; | |
326 | res_val = make_cv_value (1, 0, self_val); | |
327 | result = value_to_value_object (res_val); | |
4c082a81 | 328 | } |
230d2906 | 329 | catch (const gdb_exception &except) |
4c082a81 SC |
330 | { |
331 | GDB_PY_HANDLE_EXCEPTION (except); | |
332 | } | |
4c082a81 SC |
333 | |
334 | return result; | |
335 | } | |
336 | ||
08c637de TJB |
337 | /* Return "&value". */ |
338 | static PyObject * | |
c0c6f777 | 339 | valpy_get_address (PyObject *self, void *closure) |
08c637de | 340 | { |
c0c6f777 | 341 | value_object *val_obj = (value_object *) self; |
08c637de | 342 | |
c0c6f777 | 343 | if (!val_obj->address) |
08c637de | 344 | { |
a70b8144 | 345 | try |
c0c6f777 | 346 | { |
888fe1e1 | 347 | struct value *res_val; |
eb115069 | 348 | scoped_value_mark free_values; |
888fe1e1 | 349 | |
c0c6f777 | 350 | res_val = value_addr (val_obj->value); |
888fe1e1 | 351 | val_obj->address = value_to_value_object (res_val); |
c0c6f777 | 352 | } |
230d2906 | 353 | catch (const gdb_exception &except) |
c0c6f777 TJB |
354 | { |
355 | val_obj->address = Py_None; | |
356 | Py_INCREF (Py_None); | |
357 | } | |
08c637de | 358 | } |
08c637de | 359 | |
3fcaed38 | 360 | Py_XINCREF (val_obj->address); |
c0c6f777 TJB |
361 | |
362 | return val_obj->address; | |
08c637de TJB |
363 | } |
364 | ||
2c74e833 TT |
365 | /* Return type of the value. */ |
366 | static PyObject * | |
367 | valpy_get_type (PyObject *self, void *closure) | |
368 | { | |
369 | value_object *obj = (value_object *) self; | |
d59b6f6c | 370 | |
2c74e833 TT |
371 | if (!obj->type) |
372 | { | |
373 | obj->type = type_to_type_object (value_type (obj->value)); | |
374 | if (!obj->type) | |
03f17ccf | 375 | return NULL; |
2c74e833 TT |
376 | } |
377 | Py_INCREF (obj->type); | |
378 | return obj->type; | |
379 | } | |
380 | ||
03f17ccf TT |
381 | /* Return dynamic type of the value. */ |
382 | ||
383 | static PyObject * | |
384 | valpy_get_dynamic_type (PyObject *self, void *closure) | |
385 | { | |
386 | value_object *obj = (value_object *) self; | |
03f17ccf TT |
387 | struct type *type = NULL; |
388 | ||
389 | if (obj->dynamic_type != NULL) | |
390 | { | |
391 | Py_INCREF (obj->dynamic_type); | |
392 | return obj->dynamic_type; | |
393 | } | |
394 | ||
a70b8144 | 395 | try |
03f17ccf TT |
396 | { |
397 | struct value *val = obj->value; | |
eb115069 | 398 | scoped_value_mark free_values; |
03f17ccf TT |
399 | |
400 | type = value_type (val); | |
f168693b | 401 | type = check_typedef (type); |
03f17ccf | 402 | |
78134374 SM |
403 | if (((type->code () == TYPE_CODE_PTR) || TYPE_IS_REFERENCE (type)) |
404 | && (TYPE_TARGET_TYPE (type)->code () == TYPE_CODE_STRUCT)) | |
03f17ccf TT |
405 | { |
406 | struct value *target; | |
78134374 | 407 | int was_pointer = type->code () == TYPE_CODE_PTR; |
03f17ccf | 408 | |
7af389b8 SC |
409 | if (was_pointer) |
410 | target = value_ind (val); | |
411 | else | |
412 | target = coerce_ref (val); | |
03f17ccf TT |
413 | type = value_rtti_type (target, NULL, NULL, NULL); |
414 | ||
415 | if (type) | |
416 | { | |
417 | if (was_pointer) | |
418 | type = lookup_pointer_type (type); | |
419 | else | |
3b224330 | 420 | type = lookup_lvalue_reference_type (type); |
03f17ccf TT |
421 | } |
422 | } | |
78134374 | 423 | else if (type->code () == TYPE_CODE_STRUCT) |
03f17ccf TT |
424 | type = value_rtti_type (val, NULL, NULL, NULL); |
425 | else | |
426 | { | |
427 | /* Re-use object's static type. */ | |
428 | type = NULL; | |
429 | } | |
430 | } | |
230d2906 | 431 | catch (const gdb_exception &except) |
492d29ea PA |
432 | { |
433 | GDB_PY_HANDLE_EXCEPTION (except); | |
434 | } | |
03f17ccf TT |
435 | |
436 | if (type == NULL) | |
97b77b39 | 437 | obj->dynamic_type = valpy_get_type (self, NULL); |
03f17ccf TT |
438 | else |
439 | obj->dynamic_type = type_to_type_object (type); | |
440 | ||
97b77b39 | 441 | Py_XINCREF (obj->dynamic_type); |
03f17ccf TT |
442 | return obj->dynamic_type; |
443 | } | |
444 | ||
be759fcf PM |
445 | /* Implementation of gdb.Value.lazy_string ([encoding] [, length]) -> |
446 | string. Return a PyObject representing a lazy_string_object type. | |
447 | A lazy string is a pointer to a string with an optional encoding and | |
448 | length. If ENCODING is not given, encoding is set to None. If an | |
449 | ENCODING is provided the encoding parameter is set to ENCODING, but | |
34b43320 DE |
450 | the string is not encoded. |
451 | If LENGTH is provided then the length parameter is set to LENGTH. | |
452 | Otherwise if the value is an array of known length then the array's length | |
453 | is used. Otherwise the length will be set to -1 (meaning first null of | |
454 | appropriate with). | |
455 | ||
456 | Note: In order to not break any existing uses this allows creating | |
457 | lazy strings from anything. PR 20769. E.g., | |
458 | gdb.parse_and_eval("my_int_variable").lazy_string(). | |
459 | "It's easier to relax restrictions than it is to impose them after the | |
460 | fact." So we should be flagging any unintended uses as errors, but it's | |
461 | perhaps too late for that. */ | |
462 | ||
be759fcf PM |
463 | static PyObject * |
464 | valpy_lazy_string (PyObject *self, PyObject *args, PyObject *kw) | |
465 | { | |
74aedc46 | 466 | gdb_py_longest length = -1; |
be759fcf PM |
467 | struct value *value = ((value_object *) self)->value; |
468 | const char *user_encoding = NULL; | |
2adadf51 | 469 | static const char *keywords[] = { "encoding", "length", NULL }; |
888fe1e1 | 470 | PyObject *str_obj = NULL; |
be759fcf | 471 | |
2adadf51 PA |
472 | if (!gdb_PyArg_ParseTupleAndKeywords (args, kw, "|s" GDB_PY_LL_ARG, |
473 | keywords, &user_encoding, &length)) | |
be759fcf PM |
474 | return NULL; |
475 | ||
34b43320 DE |
476 | if (length < -1) |
477 | { | |
478 | PyErr_SetString (PyExc_ValueError, _("Invalid length.")); | |
479 | return NULL; | |
480 | } | |
481 | ||
a70b8144 | 482 | try |
f287c1f3 | 483 | { |
eb115069 | 484 | scoped_value_mark free_values; |
34b43320 DE |
485 | struct type *type, *realtype; |
486 | CORE_ADDR addr; | |
487 | ||
488 | type = value_type (value); | |
489 | realtype = check_typedef (type); | |
888fe1e1 | 490 | |
78134374 | 491 | switch (realtype->code ()) |
34b43320 DE |
492 | { |
493 | case TYPE_CODE_ARRAY: | |
494 | { | |
495 | LONGEST array_length = -1; | |
496 | LONGEST low_bound, high_bound; | |
497 | ||
498 | /* PR 20786: There's no way to specify an array of length zero. | |
499 | Record a length of [0,-1] which is how Ada does it. Anything | |
500 | we do is broken, but this one possible solution. */ | |
501 | if (get_array_bounds (realtype, &low_bound, &high_bound)) | |
502 | array_length = high_bound - low_bound + 1; | |
503 | if (length == -1) | |
504 | length = array_length; | |
505 | else if (array_length == -1) | |
506 | { | |
507 | type = lookup_array_range_type (TYPE_TARGET_TYPE (realtype), | |
508 | 0, length - 1); | |
509 | } | |
510 | else if (length != array_length) | |
511 | { | |
512 | /* We need to create a new array type with the | |
513 | specified length. */ | |
514 | if (length > array_length) | |
515 | error (_("Length is larger than array size.")); | |
516 | type = lookup_array_range_type (TYPE_TARGET_TYPE (realtype), | |
517 | low_bound, | |
518 | low_bound + length - 1); | |
519 | } | |
520 | addr = value_address (value); | |
521 | break; | |
522 | } | |
523 | case TYPE_CODE_PTR: | |
524 | /* If a length is specified we defer creating an array of the | |
525 | specified width until we need to. */ | |
526 | addr = value_as_address (value); | |
527 | break; | |
528 | default: | |
529 | /* Should flag an error here. PR 20769. */ | |
530 | addr = value_address (value); | |
531 | break; | |
532 | } | |
888fe1e1 | 533 | |
34b43320 DE |
534 | str_obj = gdbpy_create_lazy_string_object (addr, length, user_encoding, |
535 | type); | |
f287c1f3 | 536 | } |
230d2906 | 537 | catch (const gdb_exception &except) |
492d29ea PA |
538 | { |
539 | GDB_PY_HANDLE_EXCEPTION (except); | |
540 | } | |
be759fcf | 541 | |
888fe1e1 | 542 | return str_obj; |
be759fcf PM |
543 | } |
544 | ||
fbb8f299 PM |
545 | /* Implementation of gdb.Value.string ([encoding] [, errors] |
546 | [, length]) -> string. Return Unicode string with value contents. | |
547 | If ENCODING is not given, the string is assumed to be encoded in | |
548 | the target's charset. If LENGTH is provided, only fetch string to | |
549 | the length provided. */ | |
550 | ||
b6cb8e7d | 551 | static PyObject * |
cc924cad | 552 | valpy_string (PyObject *self, PyObject *args, PyObject *kw) |
b6cb8e7d | 553 | { |
f92adf3c | 554 | int length = -1; |
b4be9fad | 555 | gdb::unique_xmalloc_ptr<gdb_byte> buffer; |
b6cb8e7d | 556 | struct value *value = ((value_object *) self)->value; |
b6cb8e7d TJB |
557 | const char *encoding = NULL; |
558 | const char *errors = NULL; | |
559 | const char *user_encoding = NULL; | |
560 | const char *la_encoding = NULL; | |
96c07c5b | 561 | struct type *char_type; |
2adadf51 | 562 | static const char *keywords[] = { "encoding", "errors", "length", NULL }; |
b6cb8e7d | 563 | |
2adadf51 PA |
564 | if (!gdb_PyArg_ParseTupleAndKeywords (args, kw, "|ssi", keywords, |
565 | &user_encoding, &errors, &length)) | |
b6cb8e7d TJB |
566 | return NULL; |
567 | ||
a70b8144 | 568 | try |
b6cb8e7d | 569 | { |
91ae903f | 570 | c_get_string (value, &buffer, &length, &char_type, &la_encoding); |
b6cb8e7d | 571 | } |
230d2906 | 572 | catch (const gdb_exception &except) |
492d29ea PA |
573 | { |
574 | GDB_PY_HANDLE_EXCEPTION (except); | |
575 | } | |
b6cb8e7d TJB |
576 | |
577 | encoding = (user_encoding && *user_encoding) ? user_encoding : la_encoding; | |
b4be9fad TT |
578 | return PyUnicode_Decode ((const char *) buffer.get (), |
579 | length * TYPE_LENGTH (char_type), | |
580 | encoding, errors); | |
b6cb8e7d TJB |
581 | } |
582 | ||
491144b5 | 583 | /* Given a Python object, copy its truth value to a C bool (the value |
52093e1b MB |
584 | pointed by dest). |
585 | If src_obj is NULL, then *dest is not modified. | |
586 | ||
587 | Return true in case of success (including src_obj being NULL), false | |
588 | in case of error. */ | |
589 | ||
590 | static bool | |
491144b5 | 591 | copy_py_bool_obj (bool *dest, PyObject *src_obj) |
52093e1b MB |
592 | { |
593 | if (src_obj) | |
594 | { | |
595 | int cmp = PyObject_IsTrue (src_obj); | |
596 | if (cmp < 0) | |
597 | return false; | |
598 | *dest = cmp; | |
599 | } | |
600 | ||
601 | return true; | |
602 | } | |
603 | ||
604 | /* Implementation of gdb.Value.format_string (...) -> string. | |
605 | Return Unicode string with value contents formatted using the | |
606 | keyword-only arguments. */ | |
607 | ||
608 | static PyObject * | |
609 | valpy_format_string (PyObject *self, PyObject *args, PyObject *kw) | |
610 | { | |
611 | static const char *keywords[] = | |
612 | { | |
613 | /* Basic C/C++ options. */ | |
614 | "raw", /* See the /r option to print. */ | |
615 | "pretty_arrays", /* See set print array on|off. */ | |
616 | "pretty_structs", /* See set print pretty on|off. */ | |
617 | "array_indexes", /* See set print array-indexes on|off. */ | |
618 | "symbols", /* See set print symbol on|off. */ | |
619 | "unions", /* See set print union on|off. */ | |
620 | /* C++ options. */ | |
621 | "deref_refs", /* No corresponding setting. */ | |
622 | "actual_objects", /* See set print object on|off. */ | |
623 | "static_members", /* See set print static-members on|off. */ | |
624 | /* C non-bool options. */ | |
625 | "max_elements", /* See set print elements N. */ | |
2e62ab40 | 626 | "max_depth", /* See set print max-depth N. */ |
52093e1b MB |
627 | "repeat_threshold", /* See set print repeats. */ |
628 | "format", /* The format passed to the print command. */ | |
629 | NULL | |
630 | }; | |
631 | ||
632 | /* This function has too many arguments to be useful as positionals, so | |
633 | the user should specify them all as keyword arguments. | |
634 | Python 3.3 and later have a way to specify it (both in C and Python | |
635 | itself), but we could be compiled with older versions, so we just | |
636 | check that the args tuple is empty. */ | |
637 | Py_ssize_t positional_count = PyObject_Length (args); | |
638 | if (positional_count < 0) | |
639 | return NULL; | |
640 | else if (positional_count > 0) | |
641 | { | |
642 | /* This matches the error message that Python 3.3 raises when | |
643 | passing positionals to functions expecting keyword-only | |
644 | arguments. */ | |
645 | PyErr_Format (PyExc_TypeError, | |
646 | "format_string() takes 0 positional arguments but %zu were given", | |
647 | positional_count); | |
648 | return NULL; | |
649 | } | |
650 | ||
651 | struct value_print_options opts; | |
652 | get_user_print_options (&opts); | |
653 | opts.deref_ref = 0; | |
654 | ||
655 | /* We need objects for booleans as the "p" flag for bools is new in | |
656 | Python 3.3. */ | |
657 | PyObject *raw_obj = NULL; | |
658 | PyObject *pretty_arrays_obj = NULL; | |
659 | PyObject *pretty_structs_obj = NULL; | |
660 | PyObject *array_indexes_obj = NULL; | |
661 | PyObject *symbols_obj = NULL; | |
662 | PyObject *unions_obj = NULL; | |
663 | PyObject *deref_refs_obj = NULL; | |
664 | PyObject *actual_objects_obj = NULL; | |
665 | PyObject *static_members_obj = NULL; | |
666 | char *format = NULL; | |
667 | if (!gdb_PyArg_ParseTupleAndKeywords (args, | |
668 | kw, | |
2e62ab40 | 669 | "|O!O!O!O!O!O!O!O!O!IIIs", |
52093e1b MB |
670 | keywords, |
671 | &PyBool_Type, &raw_obj, | |
672 | &PyBool_Type, &pretty_arrays_obj, | |
673 | &PyBool_Type, &pretty_structs_obj, | |
674 | &PyBool_Type, &array_indexes_obj, | |
675 | &PyBool_Type, &symbols_obj, | |
676 | &PyBool_Type, &unions_obj, | |
677 | &PyBool_Type, &deref_refs_obj, | |
678 | &PyBool_Type, &actual_objects_obj, | |
679 | &PyBool_Type, &static_members_obj, | |
680 | &opts.print_max, | |
2e62ab40 | 681 | &opts.max_depth, |
52093e1b MB |
682 | &opts.repeat_count_threshold, |
683 | &format)) | |
684 | return NULL; | |
685 | ||
686 | /* Set boolean arguments. */ | |
687 | if (!copy_py_bool_obj (&opts.raw, raw_obj)) | |
688 | return NULL; | |
689 | if (!copy_py_bool_obj (&opts.prettyformat_arrays, pretty_arrays_obj)) | |
690 | return NULL; | |
691 | if (!copy_py_bool_obj (&opts.prettyformat_structs, pretty_structs_obj)) | |
692 | return NULL; | |
693 | if (!copy_py_bool_obj (&opts.print_array_indexes, array_indexes_obj)) | |
694 | return NULL; | |
695 | if (!copy_py_bool_obj (&opts.symbol_print, symbols_obj)) | |
696 | return NULL; | |
697 | if (!copy_py_bool_obj (&opts.unionprint, unions_obj)) | |
698 | return NULL; | |
699 | if (!copy_py_bool_obj (&opts.deref_ref, deref_refs_obj)) | |
700 | return NULL; | |
701 | if (!copy_py_bool_obj (&opts.objectprint, actual_objects_obj)) | |
702 | return NULL; | |
703 | if (!copy_py_bool_obj (&opts.static_field_print, static_members_obj)) | |
704 | return NULL; | |
705 | ||
706 | /* Numeric arguments for which 0 means unlimited (which we represent as | |
2e62ab40 AB |
707 | UINT_MAX). Note that the max-depth numeric argument uses -1 as |
708 | unlimited, and 0 is a valid choice. */ | |
52093e1b MB |
709 | if (opts.print_max == 0) |
710 | opts.print_max = UINT_MAX; | |
711 | if (opts.repeat_count_threshold == 0) | |
712 | opts.repeat_count_threshold = UINT_MAX; | |
713 | ||
714 | /* Other arguments. */ | |
715 | if (format != NULL) | |
716 | { | |
717 | if (strlen (format) == 1) | |
718 | opts.format = format[0]; | |
719 | else | |
720 | { | |
721 | /* Mimic the message on standard Python ones for similar | |
722 | errors. */ | |
723 | PyErr_SetString (PyExc_ValueError, | |
724 | "a single character is required"); | |
725 | return NULL; | |
726 | } | |
727 | } | |
728 | ||
729 | string_file stb; | |
730 | ||
a70b8144 | 731 | try |
52093e1b MB |
732 | { |
733 | common_val_print (((value_object *) self)->value, &stb, 0, | |
734 | &opts, python_language); | |
735 | } | |
230d2906 | 736 | catch (const gdb_exception &except) |
52093e1b MB |
737 | { |
738 | GDB_PY_HANDLE_EXCEPTION (except); | |
739 | } | |
52093e1b MB |
740 | |
741 | return PyUnicode_Decode (stb.c_str (), stb.size (), host_charset (), NULL); | |
742 | } | |
743 | ||
f9ffd4bb TT |
744 | /* A helper function that implements the various cast operators. */ |
745 | ||
2c74e833 | 746 | static PyObject * |
f9ffd4bb | 747 | valpy_do_cast (PyObject *self, PyObject *args, enum exp_opcode op) |
2c74e833 | 748 | { |
888fe1e1 | 749 | PyObject *type_obj, *result = NULL; |
2c74e833 | 750 | struct type *type; |
2c74e833 TT |
751 | |
752 | if (! PyArg_ParseTuple (args, "O", &type_obj)) | |
753 | return NULL; | |
754 | ||
755 | type = type_object_to_type (type_obj); | |
756 | if (! type) | |
757 | { | |
256458bc | 758 | PyErr_SetString (PyExc_RuntimeError, |
044c0f87 | 759 | _("Argument must be a type.")); |
2c74e833 TT |
760 | return NULL; |
761 | } | |
762 | ||
a70b8144 | 763 | try |
2c74e833 | 764 | { |
f9ffd4bb | 765 | struct value *val = ((value_object *) self)->value; |
888fe1e1 | 766 | struct value *res_val; |
eb115069 | 767 | scoped_value_mark free_values; |
f9ffd4bb TT |
768 | |
769 | if (op == UNOP_DYNAMIC_CAST) | |
770 | res_val = value_dynamic_cast (type, val); | |
771 | else if (op == UNOP_REINTERPRET_CAST) | |
772 | res_val = value_reinterpret_cast (type, val); | |
773 | else | |
774 | { | |
775 | gdb_assert (op == UNOP_CAST); | |
776 | res_val = value_cast (type, val); | |
777 | } | |
888fe1e1 TT |
778 | |
779 | result = value_to_value_object (res_val); | |
2c74e833 | 780 | } |
230d2906 | 781 | catch (const gdb_exception &except) |
492d29ea PA |
782 | { |
783 | GDB_PY_HANDLE_EXCEPTION (except); | |
784 | } | |
2c74e833 | 785 | |
888fe1e1 | 786 | return result; |
2c74e833 TT |
787 | } |
788 | ||
f9ffd4bb TT |
789 | /* Implementation of the "cast" method. */ |
790 | ||
791 | static PyObject * | |
792 | valpy_cast (PyObject *self, PyObject *args) | |
793 | { | |
794 | return valpy_do_cast (self, args, UNOP_CAST); | |
795 | } | |
796 | ||
797 | /* Implementation of the "dynamic_cast" method. */ | |
798 | ||
799 | static PyObject * | |
800 | valpy_dynamic_cast (PyObject *self, PyObject *args) | |
801 | { | |
802 | return valpy_do_cast (self, args, UNOP_DYNAMIC_CAST); | |
803 | } | |
804 | ||
805 | /* Implementation of the "reinterpret_cast" method. */ | |
806 | ||
807 | static PyObject * | |
808 | valpy_reinterpret_cast (PyObject *self, PyObject *args) | |
809 | { | |
810 | return valpy_do_cast (self, args, UNOP_REINTERPRET_CAST); | |
811 | } | |
812 | ||
7843261b TJB |
813 | static Py_ssize_t |
814 | valpy_length (PyObject *self) | |
815 | { | |
816 | /* We don't support getting the number of elements in a struct / class. */ | |
817 | PyErr_SetString (PyExc_NotImplementedError, | |
044c0f87 | 818 | _("Invalid operation on gdb.Value.")); |
7843261b TJB |
819 | return -1; |
820 | } | |
821 | ||
a16b0e22 SC |
822 | /* Return 1 if the gdb.Field object FIELD is present in the value V. |
823 | Returns 0 otherwise. If any Python error occurs, -1 is returned. */ | |
824 | ||
825 | static int | |
826 | value_has_field (struct value *v, PyObject *field) | |
827 | { | |
828 | struct type *parent_type, *val_type; | |
829 | enum type_code type_code; | |
7780f186 | 830 | gdbpy_ref<> type_object (PyObject_GetAttrString (field, "parent_type")); |
a16b0e22 SC |
831 | int has_field = 0; |
832 | ||
833 | if (type_object == NULL) | |
834 | return -1; | |
835 | ||
53a0cca3 | 836 | parent_type = type_object_to_type (type_object.get ()); |
a16b0e22 SC |
837 | if (parent_type == NULL) |
838 | { | |
839 | PyErr_SetString (PyExc_TypeError, | |
840 | _("'parent_type' attribute of gdb.Field object is not a" | |
841 | "gdb.Type object.")); | |
842 | return -1; | |
843 | } | |
844 | ||
a70b8144 | 845 | try |
a16b0e22 SC |
846 | { |
847 | val_type = value_type (v); | |
848 | val_type = check_typedef (val_type); | |
78134374 | 849 | if (TYPE_IS_REFERENCE (val_type) || val_type->code () == TYPE_CODE_PTR) |
7ce8f214 | 850 | val_type = check_typedef (TYPE_TARGET_TYPE (val_type)); |
a16b0e22 | 851 | |
78134374 | 852 | type_code = val_type->code (); |
a16b0e22 SC |
853 | if ((type_code == TYPE_CODE_STRUCT || type_code == TYPE_CODE_UNION) |
854 | && types_equal (val_type, parent_type)) | |
855 | has_field = 1; | |
856 | else | |
857 | has_field = 0; | |
858 | } | |
230d2906 | 859 | catch (const gdb_exception &except) |
492d29ea PA |
860 | { |
861 | GDB_PY_SET_HANDLE_EXCEPTION (except); | |
862 | } | |
a16b0e22 SC |
863 | |
864 | return has_field; | |
865 | } | |
866 | ||
867 | /* Return the value of a flag FLAG_NAME in a gdb.Field object FIELD. | |
868 | Returns 1 if the flag value is true, 0 if it is false, and -1 if | |
869 | a Python error occurs. */ | |
870 | ||
871 | static int | |
872 | get_field_flag (PyObject *field, const char *flag_name) | |
873 | { | |
7780f186 | 874 | gdbpy_ref<> flag_object (PyObject_GetAttrString (field, flag_name)); |
a16b0e22 SC |
875 | |
876 | if (flag_object == NULL) | |
877 | return -1; | |
878 | ||
53a0cca3 | 879 | return PyObject_IsTrue (flag_object.get ()); |
a16b0e22 SC |
880 | } |
881 | ||
b5b08fb4 SC |
882 | /* Return the "type" attribute of a gdb.Field object. |
883 | Returns NULL on error, with a Python exception set. */ | |
884 | ||
885 | static struct type * | |
886 | get_field_type (PyObject *field) | |
887 | { | |
7780f186 | 888 | gdbpy_ref<> ftype_obj (PyObject_GetAttrString (field, "type")); |
b5b08fb4 SC |
889 | struct type *ftype; |
890 | ||
891 | if (ftype_obj == NULL) | |
892 | return NULL; | |
53a0cca3 | 893 | ftype = type_object_to_type (ftype_obj.get ()); |
b5b08fb4 | 894 | if (ftype == NULL) |
bf7105a4 JB |
895 | PyErr_SetString (PyExc_TypeError, |
896 | _("'type' attribute of gdb.Field object is not a " | |
897 | "gdb.Type object.")); | |
b5b08fb4 SC |
898 | |
899 | return ftype; | |
900 | } | |
901 | ||
a16b0e22 SC |
902 | /* Given string name or a gdb.Field object corresponding to an element inside |
903 | a structure, return its value object. Returns NULL on error, with a python | |
904 | exception set. */ | |
905 | ||
7843261b TJB |
906 | static PyObject * |
907 | valpy_getitem (PyObject *self, PyObject *key) | |
908 | { | |
cc06b668 | 909 | struct gdb_exception except; |
7843261b | 910 | value_object *self_value = (value_object *) self; |
9b972014 | 911 | gdb::unique_xmalloc_ptr<char> field; |
b5b08fb4 SC |
912 | struct type *base_class_type = NULL, *field_type = NULL; |
913 | long bitpos = -1; | |
888fe1e1 | 914 | PyObject *result = NULL; |
7843261b | 915 | |
08c637de | 916 | if (gdbpy_is_string (key)) |
256458bc | 917 | { |
08c637de TJB |
918 | field = python_string_to_host_string (key); |
919 | if (field == NULL) | |
920 | return NULL; | |
921 | } | |
a16b0e22 SC |
922 | else if (gdbpy_is_field (key)) |
923 | { | |
924 | int is_base_class, valid_field; | |
925 | ||
926 | valid_field = value_has_field (self_value->value, key); | |
927 | if (valid_field < 0) | |
928 | return NULL; | |
929 | else if (valid_field == 0) | |
930 | { | |
931 | PyErr_SetString (PyExc_TypeError, | |
932 | _("Invalid lookup for a field not contained in " | |
933 | "the value.")); | |
934 | ||
935 | return NULL; | |
936 | } | |
937 | ||
938 | is_base_class = get_field_flag (key, "is_base_class"); | |
939 | if (is_base_class < 0) | |
940 | return NULL; | |
941 | else if (is_base_class > 0) | |
942 | { | |
b5b08fb4 SC |
943 | base_class_type = get_field_type (key); |
944 | if (base_class_type == NULL) | |
a16b0e22 SC |
945 | return NULL; |
946 | } | |
947 | else | |
948 | { | |
7780f186 | 949 | gdbpy_ref<> name_obj (PyObject_GetAttrString (key, "name")); |
a16b0e22 SC |
950 | |
951 | if (name_obj == NULL) | |
952 | return NULL; | |
953 | ||
b5b08fb4 SC |
954 | if (name_obj != Py_None) |
955 | { | |
53a0cca3 | 956 | field = python_string_to_host_string (name_obj.get ()); |
b5b08fb4 SC |
957 | if (field == NULL) |
958 | return NULL; | |
959 | } | |
960 | else | |
961 | { | |
b5b08fb4 SC |
962 | if (!PyObject_HasAttrString (key, "bitpos")) |
963 | { | |
964 | PyErr_SetString (PyExc_AttributeError, | |
965 | _("gdb.Field object has no name and no " | |
966 | "'bitpos' attribute.")); | |
967 | ||
968 | return NULL; | |
969 | } | |
7780f186 | 970 | gdbpy_ref<> bitpos_obj (PyObject_GetAttrString (key, "bitpos")); |
b5b08fb4 SC |
971 | if (bitpos_obj == NULL) |
972 | return NULL; | |
53a0cca3 | 973 | if (!gdb_py_int_as_long (bitpos_obj.get (), &bitpos)) |
b5b08fb4 SC |
974 | return NULL; |
975 | ||
976 | field_type = get_field_type (key); | |
977 | if (field_type == NULL) | |
978 | return NULL; | |
979 | } | |
a16b0e22 SC |
980 | } |
981 | } | |
7843261b | 982 | |
a70b8144 | 983 | try |
7843261b | 984 | { |
3c0ed299 | 985 | struct value *tmp = self_value->value; |
888fe1e1 | 986 | struct value *res_val = NULL; |
eb115069 | 987 | scoped_value_mark free_values; |
08c637de TJB |
988 | |
989 | if (field) | |
9b972014 | 990 | res_val = value_struct_elt (&tmp, NULL, field.get (), NULL, |
5996220c | 991 | "struct/class/union"); |
b5b08fb4 SC |
992 | else if (bitpos >= 0) |
993 | res_val = value_struct_elt_bitpos (&tmp, bitpos, field_type, | |
994 | "struct/class/union"); | |
995 | else if (base_class_type != NULL) | |
a16b0e22 | 996 | { |
b5b08fb4 | 997 | struct type *val_type; |
a16b0e22 SC |
998 | |
999 | val_type = check_typedef (value_type (tmp)); | |
78134374 | 1000 | if (val_type->code () == TYPE_CODE_PTR) |
a16b0e22 | 1001 | res_val = value_cast (lookup_pointer_type (base_class_type), tmp); |
78134374 | 1002 | else if (val_type->code () == TYPE_CODE_REF) |
3b224330 AV |
1003 | res_val = value_cast (lookup_lvalue_reference_type (base_class_type), |
1004 | tmp); | |
78134374 | 1005 | else if (val_type->code () == TYPE_CODE_RVALUE_REF) |
3fcf899d AV |
1006 | res_val = value_cast (lookup_rvalue_reference_type (base_class_type), |
1007 | tmp); | |
a16b0e22 SC |
1008 | else |
1009 | res_val = value_cast (base_class_type, tmp); | |
1010 | } | |
08c637de TJB |
1011 | else |
1012 | { | |
1013 | /* Assume we are attempting an array access, and let the | |
1014 | value code throw an exception if the index has an invalid | |
1015 | type. */ | |
1016 | struct value *idx = convert_value_from_python (key); | |
d59b6f6c | 1017 | |
570e2b1a | 1018 | if (idx != NULL) |
2e4d963f PM |
1019 | { |
1020 | /* Check the value's type is something that can be accessed via | |
1021 | a subscript. */ | |
1022 | struct type *type; | |
d59b6f6c | 1023 | |
2e4d963f PM |
1024 | tmp = coerce_ref (tmp); |
1025 | type = check_typedef (value_type (tmp)); | |
78134374 SM |
1026 | if (type->code () != TYPE_CODE_ARRAY |
1027 | && type->code () != TYPE_CODE_PTR) | |
e10abd8f | 1028 | error (_("Cannot subscript requested type.")); |
2e4d963f PM |
1029 | else |
1030 | res_val = value_subscript (tmp, value_as_long (idx)); | |
1031 | } | |
08c637de | 1032 | } |
888fe1e1 TT |
1033 | |
1034 | if (res_val) | |
1035 | result = value_to_value_object (res_val); | |
7843261b | 1036 | } |
94aeb44b | 1037 | catch (gdb_exception &ex) |
492d29ea | 1038 | { |
94aeb44b | 1039 | except = std::move (ex); |
492d29ea | 1040 | } |
570e2b1a | 1041 | |
7843261b TJB |
1042 | GDB_PY_HANDLE_EXCEPTION (except); |
1043 | ||
888fe1e1 | 1044 | return result; |
7843261b TJB |
1045 | } |
1046 | ||
1047 | static int | |
1048 | valpy_setitem (PyObject *self, PyObject *key, PyObject *value) | |
1049 | { | |
1050 | PyErr_Format (PyExc_NotImplementedError, | |
1051 | _("Setting of struct elements is not currently supported.")); | |
1052 | return -1; | |
1053 | } | |
1054 | ||
5374244e | 1055 | /* Called by the Python interpreter to perform an inferior function |
8dc78533 | 1056 | call on the value. Returns NULL on error, with a python exception set. */ |
5374244e PM |
1057 | static PyObject * |
1058 | valpy_call (PyObject *self, PyObject *args, PyObject *keywords) | |
1059 | { | |
5374244e | 1060 | Py_ssize_t args_count; |
5374244e PM |
1061 | struct value *function = ((value_object *) self)->value; |
1062 | struct value **vargs = NULL; | |
749fd4ea | 1063 | struct type *ftype = NULL; |
888fe1e1 | 1064 | PyObject *result = NULL; |
f287c1f3 | 1065 | |
a70b8144 | 1066 | try |
f287c1f3 PM |
1067 | { |
1068 | ftype = check_typedef (value_type (function)); | |
1069 | } | |
230d2906 | 1070 | catch (const gdb_exception &except) |
492d29ea PA |
1071 | { |
1072 | GDB_PY_HANDLE_EXCEPTION (except); | |
1073 | } | |
5374244e | 1074 | |
78134374 | 1075 | if (ftype->code () != TYPE_CODE_FUNC) |
5374244e PM |
1076 | { |
1077 | PyErr_SetString (PyExc_RuntimeError, | |
1078 | _("Value is not callable (not TYPE_CODE_FUNC).")); | |
1079 | return NULL; | |
1080 | } | |
1081 | ||
f287c1f3 PM |
1082 | if (! PyTuple_Check (args)) |
1083 | { | |
1084 | PyErr_SetString (PyExc_TypeError, | |
1085 | _("Inferior arguments must be provided in a tuple.")); | |
1086 | return NULL; | |
1087 | } | |
1088 | ||
5374244e PM |
1089 | args_count = PyTuple_Size (args); |
1090 | if (args_count > 0) | |
1091 | { | |
1092 | int i; | |
1093 | ||
8d749320 | 1094 | vargs = XALLOCAVEC (struct value *, args_count); |
5374244e PM |
1095 | for (i = 0; i < args_count; i++) |
1096 | { | |
1097 | PyObject *item = PyTuple_GetItem (args, i); | |
1098 | ||
1099 | if (item == NULL) | |
1100 | return NULL; | |
1101 | ||
1102 | vargs[i] = convert_value_from_python (item); | |
1103 | if (vargs[i] == NULL) | |
1104 | return NULL; | |
1105 | } | |
1106 | } | |
1107 | ||
a70b8144 | 1108 | try |
5374244e | 1109 | { |
eb115069 | 1110 | scoped_value_mark free_values; |
888fe1e1 | 1111 | |
e71585ff PA |
1112 | value *return_value |
1113 | = call_function_by_hand (function, NULL, | |
1114 | gdb::make_array_view (vargs, args_count)); | |
888fe1e1 | 1115 | result = value_to_value_object (return_value); |
5374244e | 1116 | } |
230d2906 | 1117 | catch (const gdb_exception &except) |
492d29ea PA |
1118 | { |
1119 | GDB_PY_HANDLE_EXCEPTION (except); | |
1120 | } | |
5374244e | 1121 | |
888fe1e1 | 1122 | return result; |
5374244e PM |
1123 | } |
1124 | ||
7843261b TJB |
1125 | /* Called by the Python interpreter to obtain string representation |
1126 | of the object. */ | |
1127 | static PyObject * | |
1128 | valpy_str (PyObject *self) | |
1129 | { | |
79a45b7d | 1130 | struct value_print_options opts; |
7843261b | 1131 | |
79a45b7d TT |
1132 | get_user_print_options (&opts); |
1133 | opts.deref_ref = 0; | |
1134 | ||
d7e74731 PA |
1135 | string_file stb; |
1136 | ||
a70b8144 | 1137 | try |
7843261b | 1138 | { |
d7e74731 | 1139 | common_val_print (((value_object *) self)->value, &stb, 0, |
d452c4bc | 1140 | &opts, python_language); |
7843261b | 1141 | } |
230d2906 | 1142 | catch (const gdb_exception &except) |
492d29ea PA |
1143 | { |
1144 | GDB_PY_HANDLE_EXCEPTION (except); | |
1145 | } | |
7843261b | 1146 | |
d7e74731 | 1147 | return PyUnicode_Decode (stb.c_str (), stb.size (), host_charset (), NULL); |
7843261b TJB |
1148 | } |
1149 | ||
def2b000 TJB |
1150 | /* Implements gdb.Value.is_optimized_out. */ |
1151 | static PyObject * | |
1152 | valpy_get_is_optimized_out (PyObject *self, void *closure) | |
1153 | { | |
1154 | struct value *value = ((value_object *) self)->value; | |
f287c1f3 | 1155 | int opt = 0; |
def2b000 | 1156 | |
a70b8144 | 1157 | try |
f287c1f3 PM |
1158 | { |
1159 | opt = value_optimized_out (value); | |
1160 | } | |
230d2906 | 1161 | catch (const gdb_exception &except) |
492d29ea PA |
1162 | { |
1163 | GDB_PY_HANDLE_EXCEPTION (except); | |
1164 | } | |
f287c1f3 PM |
1165 | |
1166 | if (opt) | |
def2b000 TJB |
1167 | Py_RETURN_TRUE; |
1168 | ||
1169 | Py_RETURN_FALSE; | |
1170 | } | |
1171 | ||
913460fc PK |
1172 | /* Implements gdb.Value.is_lazy. */ |
1173 | static PyObject * | |
1174 | valpy_get_is_lazy (PyObject *self, void *closure) | |
1175 | { | |
1176 | struct value *value = ((value_object *) self)->value; | |
1177 | int opt = 0; | |
913460fc | 1178 | |
a70b8144 | 1179 | try |
913460fc PK |
1180 | { |
1181 | opt = value_lazy (value); | |
1182 | } | |
230d2906 | 1183 | catch (const gdb_exception &except) |
492d29ea PA |
1184 | { |
1185 | GDB_PY_HANDLE_EXCEPTION (except); | |
1186 | } | |
913460fc PK |
1187 | |
1188 | if (opt) | |
1189 | Py_RETURN_TRUE; | |
1190 | ||
1191 | Py_RETURN_FALSE; | |
1192 | } | |
1193 | ||
1194 | /* Implements gdb.Value.fetch_lazy (). */ | |
1195 | static PyObject * | |
1196 | valpy_fetch_lazy (PyObject *self, PyObject *args) | |
1197 | { | |
1198 | struct value *value = ((value_object *) self)->value; | |
913460fc | 1199 | |
a70b8144 | 1200 | try |
913460fc PK |
1201 | { |
1202 | if (value_lazy (value)) | |
1203 | value_fetch_lazy (value); | |
1204 | } | |
230d2906 | 1205 | catch (const gdb_exception &except) |
492d29ea PA |
1206 | { |
1207 | GDB_PY_HANDLE_EXCEPTION (except); | |
1208 | } | |
913460fc PK |
1209 | |
1210 | Py_RETURN_NONE; | |
1211 | } | |
1212 | ||
88d4aea7 PM |
1213 | /* Calculate and return the address of the PyObject as the value of |
1214 | the builtin __hash__ call. */ | |
881d5d5d | 1215 | static Py_hash_t |
88d4aea7 PM |
1216 | valpy_hash (PyObject *self) |
1217 | { | |
881d5d5d | 1218 | return (intptr_t) self; |
88d4aea7 PM |
1219 | } |
1220 | ||
7843261b TJB |
1221 | enum valpy_opcode |
1222 | { | |
1223 | VALPY_ADD, | |
1224 | VALPY_SUB, | |
1225 | VALPY_MUL, | |
1226 | VALPY_DIV, | |
1227 | VALPY_REM, | |
08c637de TJB |
1228 | VALPY_POW, |
1229 | VALPY_LSH, | |
1230 | VALPY_RSH, | |
1231 | VALPY_BITAND, | |
1232 | VALPY_BITOR, | |
1233 | VALPY_BITXOR | |
7843261b TJB |
1234 | }; |
1235 | ||
1236 | /* If TYPE is a reference, return the target; otherwise return TYPE. */ | |
1237 | #define STRIP_REFERENCE(TYPE) \ | |
aa006118 | 1238 | (TYPE_IS_REFERENCE (TYPE) ? (TYPE_TARGET_TYPE (TYPE)) : (TYPE)) |
7843261b | 1239 | |
9c6595ab PA |
1240 | /* Helper for valpy_binop. Returns a value object which is the result |
1241 | of applying the operation specified by OPCODE to the given | |
1242 | arguments. Throws a GDB exception on error. */ | |
1243 | ||
7843261b | 1244 | static PyObject * |
9c6595ab | 1245 | valpy_binop_throw (enum valpy_opcode opcode, PyObject *self, PyObject *other) |
7843261b | 1246 | { |
888fe1e1 | 1247 | PyObject *result = NULL; |
7843261b | 1248 | |
9c6595ab | 1249 | struct value *arg1, *arg2; |
9c6595ab PA |
1250 | struct value *res_val = NULL; |
1251 | enum exp_opcode op = OP_NULL; | |
1252 | int handled = 0; | |
1253 | ||
eb115069 TT |
1254 | scoped_value_mark free_values; |
1255 | ||
9c6595ab PA |
1256 | /* If the gdb.Value object is the second operand, then it will be |
1257 | passed to us as the OTHER argument, and SELF will be an entirely | |
1258 | different kind of object, altogether. Because of this, we can't | |
1259 | assume self is a gdb.Value object and need to convert it from | |
1260 | python as well. */ | |
1261 | arg1 = convert_value_from_python (self); | |
1262 | if (arg1 == NULL) | |
eb115069 | 1263 | return NULL; |
08c637de | 1264 | |
9c6595ab PA |
1265 | arg2 = convert_value_from_python (other); |
1266 | if (arg2 == NULL) | |
eb115069 | 1267 | return NULL; |
7843261b | 1268 | |
9c6595ab PA |
1269 | switch (opcode) |
1270 | { | |
1271 | case VALPY_ADD: | |
1272 | { | |
1273 | struct type *ltype = value_type (arg1); | |
1274 | struct type *rtype = value_type (arg2); | |
1275 | ||
1276 | ltype = check_typedef (ltype); | |
1277 | ltype = STRIP_REFERENCE (ltype); | |
1278 | rtype = check_typedef (rtype); | |
1279 | rtype = STRIP_REFERENCE (rtype); | |
1280 | ||
1281 | handled = 1; | |
78134374 | 1282 | if (ltype->code () == TYPE_CODE_PTR |
9c6595ab PA |
1283 | && is_integral_type (rtype)) |
1284 | res_val = value_ptradd (arg1, value_as_long (arg2)); | |
78134374 | 1285 | else if (rtype->code () == TYPE_CODE_PTR |
9c6595ab PA |
1286 | && is_integral_type (ltype)) |
1287 | res_val = value_ptradd (arg2, value_as_long (arg1)); | |
1288 | else | |
7843261b | 1289 | { |
9c6595ab PA |
1290 | handled = 0; |
1291 | op = BINOP_ADD; | |
7843261b | 1292 | } |
9c6595ab PA |
1293 | } |
1294 | break; | |
1295 | case VALPY_SUB: | |
1296 | { | |
1297 | struct type *ltype = value_type (arg1); | |
1298 | struct type *rtype = value_type (arg2); | |
1299 | ||
1300 | ltype = check_typedef (ltype); | |
1301 | ltype = STRIP_REFERENCE (ltype); | |
1302 | rtype = check_typedef (rtype); | |
1303 | rtype = STRIP_REFERENCE (rtype); | |
1304 | ||
1305 | handled = 1; | |
78134374 SM |
1306 | if (ltype->code () == TYPE_CODE_PTR |
1307 | && rtype->code () == TYPE_CODE_PTR) | |
9c6595ab PA |
1308 | /* A ptrdiff_t for the target would be preferable here. */ |
1309 | res_val = value_from_longest (builtin_type_pyint, | |
1310 | value_ptrdiff (arg1, arg2)); | |
78134374 | 1311 | else if (ltype->code () == TYPE_CODE_PTR |
9c6595ab PA |
1312 | && is_integral_type (rtype)) |
1313 | res_val = value_ptradd (arg1, - value_as_long (arg2)); | |
1314 | else | |
7843261b | 1315 | { |
9c6595ab PA |
1316 | handled = 0; |
1317 | op = BINOP_SUB; | |
7843261b | 1318 | } |
9c6595ab PA |
1319 | } |
1320 | break; | |
1321 | case VALPY_MUL: | |
1322 | op = BINOP_MUL; | |
1323 | break; | |
1324 | case VALPY_DIV: | |
1325 | op = BINOP_DIV; | |
1326 | break; | |
1327 | case VALPY_REM: | |
1328 | op = BINOP_REM; | |
1329 | break; | |
1330 | case VALPY_POW: | |
1331 | op = BINOP_EXP; | |
1332 | break; | |
1333 | case VALPY_LSH: | |
1334 | op = BINOP_LSH; | |
1335 | break; | |
1336 | case VALPY_RSH: | |
1337 | op = BINOP_RSH; | |
1338 | break; | |
1339 | case VALPY_BITAND: | |
1340 | op = BINOP_BITWISE_AND; | |
1341 | break; | |
1342 | case VALPY_BITOR: | |
1343 | op = BINOP_BITWISE_IOR; | |
1344 | break; | |
1345 | case VALPY_BITXOR: | |
1346 | op = BINOP_BITWISE_XOR; | |
1347 | break; | |
1348 | } | |
888fe1e1 | 1349 | |
9c6595ab PA |
1350 | if (!handled) |
1351 | { | |
1352 | if (binop_user_defined_p (op, arg1, arg2)) | |
1353 | res_val = value_x_binop (arg1, arg2, op, OP_NULL, EVAL_NORMAL); | |
1354 | else | |
1355 | res_val = value_binop (arg1, arg2, op); | |
1356 | } | |
f7bd0f78 | 1357 | |
9c6595ab PA |
1358 | if (res_val) |
1359 | result = value_to_value_object (res_val); | |
888fe1e1 | 1360 | |
9c6595ab PA |
1361 | return result; |
1362 | } | |
1363 | ||
1364 | /* Returns a value object which is the result of applying the operation | |
1365 | specified by OPCODE to the given arguments. Returns NULL on error, with | |
1366 | a python exception set. */ | |
1367 | static PyObject * | |
1368 | valpy_binop (enum valpy_opcode opcode, PyObject *self, PyObject *other) | |
1369 | { | |
1370 | PyObject *result = NULL; | |
1371 | ||
a70b8144 | 1372 | try |
9c6595ab PA |
1373 | { |
1374 | result = valpy_binop_throw (opcode, self, other); | |
7843261b | 1375 | } |
230d2906 | 1376 | catch (const gdb_exception &except) |
492d29ea PA |
1377 | { |
1378 | GDB_PY_HANDLE_EXCEPTION (except); | |
1379 | } | |
7843261b | 1380 | |
888fe1e1 | 1381 | return result; |
7843261b TJB |
1382 | } |
1383 | ||
1384 | static PyObject * | |
1385 | valpy_add (PyObject *self, PyObject *other) | |
1386 | { | |
1387 | return valpy_binop (VALPY_ADD, self, other); | |
1388 | } | |
1389 | ||
1390 | static PyObject * | |
1391 | valpy_subtract (PyObject *self, PyObject *other) | |
1392 | { | |
1393 | return valpy_binop (VALPY_SUB, self, other); | |
1394 | } | |
1395 | ||
1396 | static PyObject * | |
1397 | valpy_multiply (PyObject *self, PyObject *other) | |
1398 | { | |
1399 | return valpy_binop (VALPY_MUL, self, other); | |
1400 | } | |
1401 | ||
1402 | static PyObject * | |
1403 | valpy_divide (PyObject *self, PyObject *other) | |
1404 | { | |
1405 | return valpy_binop (VALPY_DIV, self, other); | |
1406 | } | |
1407 | ||
1408 | static PyObject * | |
1409 | valpy_remainder (PyObject *self, PyObject *other) | |
1410 | { | |
1411 | return valpy_binop (VALPY_REM, self, other); | |
1412 | } | |
1413 | ||
1414 | static PyObject * | |
1415 | valpy_power (PyObject *self, PyObject *other, PyObject *unused) | |
1416 | { | |
1417 | /* We don't support the ternary form of pow. I don't know how to express | |
1418 | that, so let's just throw NotImplementedError to at least do something | |
1419 | about it. */ | |
1420 | if (unused != Py_None) | |
1421 | { | |
1422 | PyErr_SetString (PyExc_NotImplementedError, | |
1423 | "Invalid operation on gdb.Value."); | |
1424 | return NULL; | |
1425 | } | |
1426 | ||
1427 | return valpy_binop (VALPY_POW, self, other); | |
1428 | } | |
1429 | ||
1430 | static PyObject * | |
1431 | valpy_negative (PyObject *self) | |
1432 | { | |
888fe1e1 | 1433 | PyObject *result = NULL; |
7843261b | 1434 | |
a70b8144 | 1435 | try |
7843261b | 1436 | { |
888fe1e1 | 1437 | /* Perhaps overkill, but consistency has some virtue. */ |
eb115069 | 1438 | scoped_value_mark free_values; |
888fe1e1 TT |
1439 | struct value *val; |
1440 | ||
7843261b | 1441 | val = value_neg (((value_object *) self)->value); |
888fe1e1 | 1442 | result = value_to_value_object (val); |
7843261b | 1443 | } |
230d2906 | 1444 | catch (const gdb_exception &except) |
492d29ea PA |
1445 | { |
1446 | GDB_PY_HANDLE_EXCEPTION (except); | |
1447 | } | |
7843261b | 1448 | |
888fe1e1 | 1449 | return result; |
7843261b TJB |
1450 | } |
1451 | ||
1452 | static PyObject * | |
1453 | valpy_positive (PyObject *self) | |
1454 | { | |
4e7a5ef5 | 1455 | return value_to_value_object (((value_object *) self)->value); |
7843261b TJB |
1456 | } |
1457 | ||
1458 | static PyObject * | |
1459 | valpy_absolute (PyObject *self) | |
1460 | { | |
22601c15 | 1461 | struct value *value = ((value_object *) self)->value; |
f287c1f3 | 1462 | int isabs = 1; |
d59b6f6c | 1463 | |
a70b8144 | 1464 | try |
f287c1f3 | 1465 | { |
eb115069 | 1466 | scoped_value_mark free_values; |
888fe1e1 | 1467 | |
f287c1f3 PM |
1468 | if (value_less (value, value_zero (value_type (value), not_lval))) |
1469 | isabs = 0; | |
1470 | } | |
230d2906 | 1471 | catch (const gdb_exception &except) |
492d29ea PA |
1472 | { |
1473 | GDB_PY_HANDLE_EXCEPTION (except); | |
1474 | } | |
f287c1f3 PM |
1475 | |
1476 | if (isabs) | |
7843261b | 1477 | return valpy_positive (self); |
f287c1f3 PM |
1478 | else |
1479 | return valpy_negative (self); | |
7843261b TJB |
1480 | } |
1481 | ||
1482 | /* Implements boolean evaluation of gdb.Value. */ | |
1483 | static int | |
1484 | valpy_nonzero (PyObject *self) | |
1485 | { | |
cc06b668 | 1486 | struct gdb_exception except; |
7843261b TJB |
1487 | value_object *self_value = (value_object *) self; |
1488 | struct type *type; | |
f287c1f3 | 1489 | int nonzero = 0; /* Appease GCC warning. */ |
7843261b | 1490 | |
a70b8144 | 1491 | try |
f287c1f3 | 1492 | { |
5d9c5995 PM |
1493 | type = check_typedef (value_type (self_value->value)); |
1494 | ||
78134374 | 1495 | if (is_integral_type (type) || type->code () == TYPE_CODE_PTR) |
f287c1f3 | 1496 | nonzero = !!value_as_long (self_value->value); |
70100014 UW |
1497 | else if (is_floating_value (self_value->value)) |
1498 | nonzero = !target_float_is_zero (value_contents (self_value->value), | |
1499 | type); | |
f287c1f3 PM |
1500 | else |
1501 | /* All other values are True. */ | |
1502 | nonzero = 1; | |
1503 | } | |
94aeb44b | 1504 | catch (gdb_exception &ex) |
492d29ea | 1505 | { |
94aeb44b | 1506 | except = std::move (ex); |
492d29ea | 1507 | } |
492d29ea | 1508 | |
f287c1f3 PM |
1509 | /* This is not documented in the Python documentation, but if this |
1510 | function fails, return -1 as slot_nb_nonzero does (the default | |
1511 | Python nonzero function). */ | |
1512 | GDB_PY_SET_HANDLE_EXCEPTION (except); | |
1513 | ||
1514 | return nonzero; | |
7843261b TJB |
1515 | } |
1516 | ||
08c637de | 1517 | /* Implements ~ for value objects. */ |
7843261b | 1518 | static PyObject * |
08c637de | 1519 | valpy_invert (PyObject *self) |
7843261b | 1520 | { |
08c637de | 1521 | struct value *val = NULL; |
7843261b | 1522 | |
a70b8144 | 1523 | try |
7843261b | 1524 | { |
08c637de TJB |
1525 | val = value_complement (((value_object *) self)->value); |
1526 | } | |
230d2906 | 1527 | catch (const gdb_exception &except) |
492d29ea PA |
1528 | { |
1529 | GDB_PY_HANDLE_EXCEPTION (except); | |
1530 | } | |
7843261b | 1531 | |
08c637de TJB |
1532 | return value_to_value_object (val); |
1533 | } | |
7843261b | 1534 | |
08c637de TJB |
1535 | /* Implements left shift for value objects. */ |
1536 | static PyObject * | |
1537 | valpy_lsh (PyObject *self, PyObject *other) | |
1538 | { | |
1539 | return valpy_binop (VALPY_LSH, self, other); | |
1540 | } | |
7843261b | 1541 | |
08c637de TJB |
1542 | /* Implements right shift for value objects. */ |
1543 | static PyObject * | |
1544 | valpy_rsh (PyObject *self, PyObject *other) | |
1545 | { | |
1546 | return valpy_binop (VALPY_RSH, self, other); | |
1547 | } | |
7843261b | 1548 | |
08c637de TJB |
1549 | /* Implements bitwise and for value objects. */ |
1550 | static PyObject * | |
1551 | valpy_and (PyObject *self, PyObject *other) | |
1552 | { | |
1553 | return valpy_binop (VALPY_BITAND, self, other); | |
1554 | } | |
7843261b | 1555 | |
08c637de TJB |
1556 | /* Implements bitwise or for value objects. */ |
1557 | static PyObject * | |
1558 | valpy_or (PyObject *self, PyObject *other) | |
1559 | { | |
1560 | return valpy_binop (VALPY_BITOR, self, other); | |
1561 | } | |
1562 | ||
1563 | /* Implements bitwise xor for value objects. */ | |
1564 | static PyObject * | |
1565 | valpy_xor (PyObject *self, PyObject *other) | |
1566 | { | |
1567 | return valpy_binop (VALPY_BITXOR, self, other); | |
1568 | } | |
1569 | ||
9c6595ab PA |
1570 | /* Helper for valpy_richcompare. Implements comparison operations for |
1571 | value objects. Returns true/false on success. Returns -1 with a | |
1572 | Python exception set if a Python error is detected. Throws a GDB | |
1573 | exception on other errors (memory error, etc.). */ | |
1574 | ||
1575 | static int | |
1576 | valpy_richcompare_throw (PyObject *self, PyObject *other, int op) | |
1577 | { | |
1578 | int result; | |
1579 | struct value *value_other; | |
1580 | struct value *value_self; | |
9c6595ab | 1581 | |
eb115069 TT |
1582 | scoped_value_mark free_values; |
1583 | ||
9c6595ab PA |
1584 | value_other = convert_value_from_python (other); |
1585 | if (value_other == NULL) | |
1586 | return -1; | |
1587 | ||
9c6595ab PA |
1588 | value_self = ((value_object *) self)->value; |
1589 | ||
1590 | switch (op) | |
1591 | { | |
1592 | case Py_LT: | |
1593 | result = value_less (value_self, value_other); | |
1594 | break; | |
1595 | case Py_LE: | |
1596 | result = value_less (value_self, value_other) | |
1597 | || value_equal (value_self, value_other); | |
1598 | break; | |
1599 | case Py_EQ: | |
1600 | result = value_equal (value_self, value_other); | |
1601 | break; | |
1602 | case Py_NE: | |
1603 | result = !value_equal (value_self, value_other); | |
1604 | break; | |
1605 | case Py_GT: | |
1606 | result = value_less (value_other, value_self); | |
1607 | break; | |
1608 | case Py_GE: | |
1609 | result = (value_less (value_other, value_self) | |
1610 | || value_equal (value_self, value_other)); | |
1611 | break; | |
1612 | default: | |
1613 | /* Can't happen. */ | |
1614 | PyErr_SetString (PyExc_NotImplementedError, | |
1615 | _("Invalid operation on gdb.Value.")); | |
1616 | result = -1; | |
1617 | break; | |
1618 | } | |
1619 | ||
9c6595ab PA |
1620 | return result; |
1621 | } | |
1622 | ||
1623 | ||
8dc78533 JK |
1624 | /* Implements comparison operations for value objects. Returns NULL on error, |
1625 | with a python exception set. */ | |
08c637de TJB |
1626 | static PyObject * |
1627 | valpy_richcompare (PyObject *self, PyObject *other, int op) | |
1628 | { | |
1629 | int result = 0; | |
08c637de TJB |
1630 | |
1631 | if (other == Py_None) | |
7843261b TJB |
1632 | /* Comparing with None is special. From what I can tell, in Python |
1633 | None is smaller than anything else. */ | |
1634 | switch (op) { | |
1635 | case Py_LT: | |
1636 | case Py_LE: | |
1637 | case Py_EQ: | |
1638 | Py_RETURN_FALSE; | |
1639 | case Py_NE: | |
1640 | case Py_GT: | |
1641 | case Py_GE: | |
1642 | Py_RETURN_TRUE; | |
1643 | default: | |
1644 | /* Can't happen. */ | |
1645 | PyErr_SetString (PyExc_NotImplementedError, | |
044c0f87 | 1646 | _("Invalid operation on gdb.Value.")); |
7843261b TJB |
1647 | return NULL; |
1648 | } | |
7843261b | 1649 | |
a70b8144 | 1650 | try |
7843261b | 1651 | { |
9c6595ab | 1652 | result = valpy_richcompare_throw (self, other, op); |
7843261b | 1653 | } |
230d2906 | 1654 | catch (const gdb_exception &except) |
492d29ea PA |
1655 | { |
1656 | GDB_PY_HANDLE_EXCEPTION (except); | |
1657 | } | |
7843261b | 1658 | |
f02779d8 TT |
1659 | /* In this case, the Python exception has already been set. */ |
1660 | if (result < 0) | |
1661 | return NULL; | |
1662 | ||
7843261b TJB |
1663 | if (result == 1) |
1664 | Py_RETURN_TRUE; | |
1665 | ||
1666 | Py_RETURN_FALSE; | |
1667 | } | |
1668 | ||
9a27f2c6 | 1669 | #ifndef IS_PY3K |
08c637de TJB |
1670 | /* Implements conversion to int. */ |
1671 | static PyObject * | |
1672 | valpy_int (PyObject *self) | |
1673 | { | |
1674 | struct value *value = ((value_object *) self)->value; | |
1675 | struct type *type = value_type (value); | |
1676 | LONGEST l = 0; | |
08c637de | 1677 | |
a70b8144 | 1678 | try |
08c637de | 1679 | { |
fb4fa946 TT |
1680 | if (is_floating_value (value)) |
1681 | { | |
1682 | type = builtin_type_pylong; | |
1683 | value = value_cast (type, value); | |
1684 | } | |
1685 | ||
f5769a2c | 1686 | if (!is_integral_type (type) |
78134374 | 1687 | && type->code () != TYPE_CODE_PTR) |
f287c1f3 PM |
1688 | error (_("Cannot convert value to int.")); |
1689 | ||
08c637de TJB |
1690 | l = value_as_long (value); |
1691 | } | |
230d2906 | 1692 | catch (const gdb_exception &except) |
492d29ea PA |
1693 | { |
1694 | GDB_PY_HANDLE_EXCEPTION (except); | |
1695 | } | |
08c637de | 1696 | |
c6d940a9 | 1697 | if (type->is_unsigned ()) |
12dfa12a | 1698 | return gdb_py_object_from_ulongest (l).release (); |
1c1e54f6 | 1699 | else |
12dfa12a | 1700 | return gdb_py_object_from_longest (l).release (); |
08c637de | 1701 | } |
9a27f2c6 | 1702 | #endif |
08c637de TJB |
1703 | |
1704 | /* Implements conversion to long. */ | |
1705 | static PyObject * | |
1706 | valpy_long (PyObject *self) | |
1707 | { | |
1708 | struct value *value = ((value_object *) self)->value; | |
1709 | struct type *type = value_type (value); | |
1710 | LONGEST l = 0; | |
08c637de | 1711 | |
a70b8144 | 1712 | try |
08c637de | 1713 | { |
fb4fa946 TT |
1714 | if (is_floating_value (value)) |
1715 | { | |
1716 | type = builtin_type_pylong; | |
1717 | value = value_cast (type, value); | |
1718 | } | |
1719 | ||
f168693b | 1720 | type = check_typedef (type); |
f287c1f3 | 1721 | |
7c245c24 | 1722 | if (!is_integral_type (type) |
78134374 | 1723 | && type->code () != TYPE_CODE_PTR) |
f287c1f3 PM |
1724 | error (_("Cannot convert value to long.")); |
1725 | ||
08c637de TJB |
1726 | l = value_as_long (value); |
1727 | } | |
230d2906 | 1728 | catch (const gdb_exception &except) |
492d29ea PA |
1729 | { |
1730 | GDB_PY_HANDLE_EXCEPTION (except); | |
1731 | } | |
08c637de | 1732 | |
c6d940a9 | 1733 | if (type->is_unsigned ()) |
d1cab987 | 1734 | return gdb_py_object_from_ulongest (l).release (); |
33fa2c6e | 1735 | else |
4bde49dc | 1736 | return gdb_py_object_from_longest (l).release (); |
08c637de TJB |
1737 | } |
1738 | ||
1739 | /* Implements conversion to float. */ | |
1740 | static PyObject * | |
1741 | valpy_float (PyObject *self) | |
1742 | { | |
1743 | struct value *value = ((value_object *) self)->value; | |
1744 | struct type *type = value_type (value); | |
1745 | double d = 0; | |
08c637de | 1746 | |
a70b8144 | 1747 | try |
08c637de | 1748 | { |
f168693b | 1749 | type = check_typedef (type); |
f287c1f3 | 1750 | |
78134374 | 1751 | if (type->code () == TYPE_CODE_FLT && is_floating_value (value)) |
fb4fa946 | 1752 | d = target_float_to_host_double (value_contents (value), type); |
78134374 | 1753 | else if (type->code () == TYPE_CODE_INT) |
fb4fa946 TT |
1754 | { |
1755 | /* Note that valpy_long accepts TYPE_CODE_PTR and some | |
1756 | others here here -- but casting a pointer or bool to a | |
1757 | float seems wrong. */ | |
1758 | d = value_as_long (value); | |
1759 | } | |
1760 | else | |
f287c1f3 | 1761 | error (_("Cannot convert value to float.")); |
08c637de | 1762 | } |
230d2906 | 1763 | catch (const gdb_exception &except) |
492d29ea PA |
1764 | { |
1765 | GDB_PY_HANDLE_EXCEPTION (except); | |
1766 | } | |
08c637de TJB |
1767 | |
1768 | return PyFloat_FromDouble (d); | |
1769 | } | |
1770 | ||
7843261b TJB |
1771 | /* Returns an object for a value which is released from the all_values chain, |
1772 | so its lifetime is not bound to the execution of a command. */ | |
1773 | PyObject * | |
1774 | value_to_value_object (struct value *val) | |
1775 | { | |
1776 | value_object *val_obj; | |
1777 | ||
1778 | val_obj = PyObject_New (value_object, &value_object_type); | |
1779 | if (val_obj != NULL) | |
1780 | { | |
22bc8444 | 1781 | val_obj->value = release_value (val).release (); |
c0c6f777 | 1782 | val_obj->address = NULL; |
2c74e833 | 1783 | val_obj->type = NULL; |
03f17ccf | 1784 | val_obj->dynamic_type = NULL; |
4e7a5ef5 | 1785 | note_value (val_obj); |
7843261b TJB |
1786 | } |
1787 | ||
1788 | return (PyObject *) val_obj; | |
1789 | } | |
1790 | ||
42331a1e TT |
1791 | /* Returns an object for a value, but without releasing it from the |
1792 | all_values chain. */ | |
1793 | PyObject * | |
1794 | value_to_value_object_no_release (struct value *val) | |
1795 | { | |
1796 | value_object *val_obj; | |
1797 | ||
1798 | val_obj = PyObject_New (value_object, &value_object_type); | |
1799 | if (val_obj != NULL) | |
1800 | { | |
1801 | value_incref (val); | |
1802 | val_obj->value = val; | |
1803 | val_obj->address = NULL; | |
1804 | val_obj->type = NULL; | |
1805 | val_obj->dynamic_type = NULL; | |
1806 | note_value (val_obj); | |
1807 | } | |
1808 | ||
1809 | return (PyObject *) val_obj; | |
1810 | } | |
1811 | ||
4e7a5ef5 TT |
1812 | /* Returns a borrowed reference to the struct value corresponding to |
1813 | the given value object. */ | |
a6bac58e TT |
1814 | struct value * |
1815 | value_object_to_value (PyObject *self) | |
1816 | { | |
1817 | value_object *real; | |
d59b6f6c | 1818 | |
a6bac58e TT |
1819 | if (! PyObject_TypeCheck (self, &value_object_type)) |
1820 | return NULL; | |
1821 | real = (value_object *) self; | |
1822 | return real->value; | |
1823 | } | |
1824 | ||
7843261b | 1825 | /* Try to convert a Python value to a gdb value. If the value cannot |
4e7a5ef5 TT |
1826 | be converted, set a Python exception and return NULL. Returns a |
1827 | reference to a new value on the all_values chain. */ | |
7843261b TJB |
1828 | |
1829 | struct value * | |
1830 | convert_value_from_python (PyObject *obj) | |
1831 | { | |
1832 | struct value *value = NULL; /* -Wall */ | |
08c637de | 1833 | int cmp; |
7843261b | 1834 | |
08c637de | 1835 | gdb_assert (obj != NULL); |
7843261b | 1836 | |
a70b8144 | 1837 | try |
7843261b | 1838 | { |
256458bc | 1839 | if (PyBool_Check (obj)) |
08c637de TJB |
1840 | { |
1841 | cmp = PyObject_IsTrue (obj); | |
1842 | if (cmp >= 0) | |
1843 | value = value_from_longest (builtin_type_pybool, cmp); | |
1844 | } | |
06ab7b19 PM |
1845 | /* Make a long logic check first. In Python 3.x, internally, |
1846 | all integers are represented as longs. In Python 2.x, there | |
1847 | is still a differentiation internally between a PyInt and a | |
1848 | PyLong. Explicitly do this long check conversion first. In | |
1849 | GDB, for Python 3.x, we #ifdef PyInt = PyLong. This check has | |
1850 | to be done first to ensure we do not lose information in the | |
1851 | conversion process. */ | |
08c637de TJB |
1852 | else if (PyLong_Check (obj)) |
1853 | { | |
1854 | LONGEST l = PyLong_AsLongLong (obj); | |
7843261b | 1855 | |
595939de PM |
1856 | if (PyErr_Occurred ()) |
1857 | { | |
1858 | /* If the error was an overflow, we can try converting to | |
1859 | ULONGEST instead. */ | |
1860 | if (PyErr_ExceptionMatches (PyExc_OverflowError)) | |
1861 | { | |
5c329e6a | 1862 | gdbpy_err_fetch fetched_error; |
7780f186 | 1863 | gdbpy_ref<> zero (PyInt_FromLong (0)); |
595939de PM |
1864 | |
1865 | /* Check whether obj is positive. */ | |
53a0cca3 | 1866 | if (PyObject_RichCompareBool (obj, zero.get (), Py_GT) > 0) |
595939de PM |
1867 | { |
1868 | ULONGEST ul; | |
1869 | ||
1870 | ul = PyLong_AsUnsignedLongLong (obj); | |
1871 | if (! PyErr_Occurred ()) | |
1872 | value = value_from_ulongest (builtin_type_upylong, ul); | |
1873 | } | |
1874 | else | |
5c329e6a TT |
1875 | { |
1876 | /* There's nothing we can do. */ | |
1877 | fetched_error.restore (); | |
1878 | } | |
595939de PM |
1879 | } |
1880 | } | |
1881 | else | |
08c637de TJB |
1882 | value = value_from_longest (builtin_type_pylong, l); |
1883 | } | |
12c58cd4 | 1884 | #if PY_MAJOR_VERSION == 2 |
06ab7b19 PM |
1885 | else if (PyInt_Check (obj)) |
1886 | { | |
1887 | long l = PyInt_AsLong (obj); | |
1888 | ||
1889 | if (! PyErr_Occurred ()) | |
1890 | value = value_from_longest (builtin_type_pyint, l); | |
1891 | } | |
12c58cd4 | 1892 | #endif |
08c637de TJB |
1893 | else if (PyFloat_Check (obj)) |
1894 | { | |
1895 | double d = PyFloat_AsDouble (obj); | |
7843261b | 1896 | |
08c637de | 1897 | if (! PyErr_Occurred ()) |
7584bb30 | 1898 | value = value_from_host_double (builtin_type_pyfloat, d); |
08c637de TJB |
1899 | } |
1900 | else if (gdbpy_is_string (obj)) | |
1901 | { | |
9b972014 TT |
1902 | gdb::unique_xmalloc_ptr<char> s |
1903 | = python_string_to_target_string (obj); | |
08c637de | 1904 | if (s != NULL) |
9b972014 TT |
1905 | value = value_cstring (s.get (), strlen (s.get ()), |
1906 | builtin_type_pychar); | |
08c637de TJB |
1907 | } |
1908 | else if (PyObject_TypeCheck (obj, &value_object_type)) | |
cc924cad | 1909 | value = value_copy (((value_object *) obj)->value); |
be759fcf PM |
1910 | else if (gdbpy_is_lazy_string (obj)) |
1911 | { | |
1912 | PyObject *result; | |
d59b6f6c | 1913 | |
fb6a3ed3 | 1914 | result = PyObject_CallMethodObjArgs (obj, gdbpy_value_cst, NULL); |
be759fcf PM |
1915 | value = value_copy (((value_object *) result)->value); |
1916 | } | |
08c637de | 1917 | else |
9a27f2c6 PK |
1918 | #ifdef IS_PY3K |
1919 | PyErr_Format (PyExc_TypeError, | |
1920 | _("Could not convert Python object: %S."), obj); | |
1921 | #else | |
9a2b4c1b MS |
1922 | PyErr_Format (PyExc_TypeError, |
1923 | _("Could not convert Python object: %s."), | |
08c637de | 1924 | PyString_AsString (PyObject_Str (obj))); |
9a27f2c6 | 1925 | #endif |
08c637de | 1926 | } |
230d2906 | 1927 | catch (const gdb_exception &except) |
08c637de | 1928 | { |
ec9c2750 | 1929 | gdbpy_convert_exception (except); |
08c637de TJB |
1930 | return NULL; |
1931 | } | |
7843261b TJB |
1932 | |
1933 | return value; | |
1934 | } | |
1935 | ||
1936 | /* Returns value object in the ARGth position in GDB's history. */ | |
1937 | PyObject * | |
08c637de | 1938 | gdbpy_history (PyObject *self, PyObject *args) |
7843261b TJB |
1939 | { |
1940 | int i; | |
1941 | struct value *res_val = NULL; /* Initialize to appease gcc warning. */ | |
7843261b TJB |
1942 | |
1943 | if (!PyArg_ParseTuple (args, "i", &i)) | |
1944 | return NULL; | |
1945 | ||
a70b8144 | 1946 | try |
7843261b TJB |
1947 | { |
1948 | res_val = access_value_history (i); | |
1949 | } | |
230d2906 | 1950 | catch (const gdb_exception &except) |
492d29ea PA |
1951 | { |
1952 | GDB_PY_HANDLE_EXCEPTION (except); | |
1953 | } | |
7843261b TJB |
1954 | |
1955 | return value_to_value_object (res_val); | |
1956 | } | |
1957 | ||
7729052b TT |
1958 | /* Return the value of a convenience variable. */ |
1959 | PyObject * | |
1960 | gdbpy_convenience_variable (PyObject *self, PyObject *args) | |
1961 | { | |
1962 | const char *varname; | |
1963 | struct value *res_val = NULL; | |
1964 | ||
1965 | if (!PyArg_ParseTuple (args, "s", &varname)) | |
1966 | return NULL; | |
1967 | ||
a70b8144 | 1968 | try |
7729052b TT |
1969 | { |
1970 | struct internalvar *var = lookup_only_internalvar (varname); | |
1971 | ||
1972 | if (var != NULL) | |
1973 | { | |
1974 | res_val = value_of_internalvar (python_gdbarch, var); | |
78134374 | 1975 | if (value_type (res_val)->code () == TYPE_CODE_VOID) |
7729052b TT |
1976 | res_val = NULL; |
1977 | } | |
1978 | } | |
230d2906 | 1979 | catch (const gdb_exception &except) |
7729052b TT |
1980 | { |
1981 | GDB_PY_HANDLE_EXCEPTION (except); | |
1982 | } | |
7729052b TT |
1983 | |
1984 | if (res_val == NULL) | |
1985 | Py_RETURN_NONE; | |
1986 | ||
1987 | return value_to_value_object (res_val); | |
1988 | } | |
1989 | ||
1990 | /* Set the value of a convenience variable. */ | |
1991 | PyObject * | |
1992 | gdbpy_set_convenience_variable (PyObject *self, PyObject *args) | |
1993 | { | |
1994 | const char *varname; | |
1995 | PyObject *value_obj; | |
1996 | struct value *value = NULL; | |
1997 | ||
1998 | if (!PyArg_ParseTuple (args, "sO", &varname, &value_obj)) | |
1999 | return NULL; | |
2000 | ||
2001 | /* None means to clear the variable. */ | |
2002 | if (value_obj != Py_None) | |
2003 | { | |
2004 | value = convert_value_from_python (value_obj); | |
2005 | if (value == NULL) | |
2006 | return NULL; | |
2007 | } | |
2008 | ||
a70b8144 | 2009 | try |
7729052b TT |
2010 | { |
2011 | if (value == NULL) | |
2012 | { | |
2013 | struct internalvar *var = lookup_only_internalvar (varname); | |
2014 | ||
2015 | if (var != NULL) | |
2016 | clear_internalvar (var); | |
2017 | } | |
2018 | else | |
2019 | { | |
2020 | struct internalvar *var = lookup_internalvar (varname); | |
2021 | ||
2022 | set_internalvar (var, value); | |
2023 | } | |
2024 | } | |
230d2906 | 2025 | catch (const gdb_exception &except) |
7729052b TT |
2026 | { |
2027 | GDB_PY_HANDLE_EXCEPTION (except); | |
2028 | } | |
7729052b TT |
2029 | |
2030 | Py_RETURN_NONE; | |
2031 | } | |
2032 | ||
595939de PM |
2033 | /* Returns 1 in OBJ is a gdb.Value object, 0 otherwise. */ |
2034 | ||
2035 | int | |
2036 | gdbpy_is_value_object (PyObject *obj) | |
2037 | { | |
2038 | return PyObject_TypeCheck (obj, &value_object_type); | |
2039 | } | |
2040 | ||
999633ed | 2041 | int |
7843261b TJB |
2042 | gdbpy_initialize_values (void) |
2043 | { | |
7843261b | 2044 | if (PyType_Ready (&value_object_type) < 0) |
999633ed | 2045 | return -1; |
7843261b | 2046 | |
aa36459a TT |
2047 | return gdb_pymodule_addobject (gdb_module, "Value", |
2048 | (PyObject *) &value_object_type); | |
7843261b TJB |
2049 | } |
2050 | ||
2c74e833 TT |
2051 | \f |
2052 | ||
0d1f4ceb | 2053 | static gdb_PyGetSetDef value_object_getset[] = { |
c0c6f777 TJB |
2054 | { "address", valpy_get_address, NULL, "The address of the value.", |
2055 | NULL }, | |
def2b000 | 2056 | { "is_optimized_out", valpy_get_is_optimized_out, NULL, |
9a2b4c1b MS |
2057 | "Boolean telling whether the value is optimized " |
2058 | "out (i.e., not available).", | |
def2b000 | 2059 | NULL }, |
2c74e833 | 2060 | { "type", valpy_get_type, NULL, "Type of the value.", NULL }, |
03f17ccf TT |
2061 | { "dynamic_type", valpy_get_dynamic_type, NULL, |
2062 | "Dynamic type of the value.", NULL }, | |
913460fc PK |
2063 | { "is_lazy", valpy_get_is_lazy, NULL, |
2064 | "Boolean telling whether the value is lazy (not fetched yet\n\ | |
2065 | from the inferior). A lazy value is fetched when needed, or when\n\ | |
2066 | the \"fetch_lazy()\" method is called.", NULL }, | |
def2b000 TJB |
2067 | {NULL} /* Sentinel */ |
2068 | }; | |
2069 | ||
f9176c46 | 2070 | static PyMethodDef value_object_methods[] = { |
2c74e833 | 2071 | { "cast", valpy_cast, METH_VARARGS, "Cast the value to the supplied type." }, |
f9ffd4bb TT |
2072 | { "dynamic_cast", valpy_dynamic_cast, METH_VARARGS, |
2073 | "dynamic_cast (gdb.Type) -> gdb.Value\n\ | |
2074 | Cast the value to the supplied type, as if by the C++ dynamic_cast operator." | |
2075 | }, | |
2076 | { "reinterpret_cast", valpy_reinterpret_cast, METH_VARARGS, | |
2077 | "reinterpret_cast (gdb.Type) -> gdb.Value\n\ | |
2078 | Cast the value to the supplied type, as if by the C++\n\ | |
2079 | reinterpret_cast operator." | |
2080 | }, | |
f9176c46 | 2081 | { "dereference", valpy_dereference, METH_NOARGS, "Dereferences the value." }, |
7b282c5a SCR |
2082 | { "referenced_value", valpy_referenced_value, METH_NOARGS, |
2083 | "Return the value referenced by a TYPE_CODE_REF or TYPE_CODE_PTR value." }, | |
3fcf899d | 2084 | { "reference_value", valpy_lvalue_reference_value, METH_NOARGS, |
4c082a81 | 2085 | "Return a value of type TYPE_CODE_REF referencing this value." }, |
3fcf899d AV |
2086 | { "rvalue_reference_value", valpy_rvalue_reference_value, METH_NOARGS, |
2087 | "Return a value of type TYPE_CODE_RVALUE_REF referencing this value." }, | |
4c082a81 SC |
2088 | { "const_value", valpy_const_value, METH_NOARGS, |
2089 | "Return a 'const' qualied version of the same value." }, | |
9a2b4c1b MS |
2090 | { "lazy_string", (PyCFunction) valpy_lazy_string, |
2091 | METH_VARARGS | METH_KEYWORDS, | |
be759fcf PM |
2092 | "lazy_string ([encoding] [, length]) -> lazy_string\n\ |
2093 | Return a lazy string representation of the value." }, | |
cc924cad | 2094 | { "string", (PyCFunction) valpy_string, METH_VARARGS | METH_KEYWORDS, |
fbb8f299 | 2095 | "string ([encoding] [, errors] [, length]) -> string\n\ |
cc924cad | 2096 | Return Unicode string representation of the value." }, |
256458bc | 2097 | { "fetch_lazy", valpy_fetch_lazy, METH_NOARGS, |
913460fc | 2098 | "Fetches the value from the inferior, if it was lazy." }, |
52093e1b MB |
2099 | { "format_string", (PyCFunction) valpy_format_string, |
2100 | METH_VARARGS | METH_KEYWORDS, | |
2101 | "format_string (...) -> string\n\ | |
2102 | Return a string representation of the value using the specified\n\ | |
2103 | formatting options" }, | |
f9176c46 PA |
2104 | {NULL} /* Sentinel */ |
2105 | }; | |
2106 | ||
2107 | static PyNumberMethods value_object_as_number = { | |
2108 | valpy_add, | |
2109 | valpy_subtract, | |
2110 | valpy_multiply, | |
9a27f2c6 | 2111 | #ifndef IS_PY3K |
f9176c46 | 2112 | valpy_divide, |
9a27f2c6 | 2113 | #endif |
f9176c46 PA |
2114 | valpy_remainder, |
2115 | NULL, /* nb_divmod */ | |
2116 | valpy_power, /* nb_power */ | |
2117 | valpy_negative, /* nb_negative */ | |
2118 | valpy_positive, /* nb_positive */ | |
2119 | valpy_absolute, /* nb_absolute */ | |
08c637de TJB |
2120 | valpy_nonzero, /* nb_nonzero */ |
2121 | valpy_invert, /* nb_invert */ | |
2122 | valpy_lsh, /* nb_lshift */ | |
2123 | valpy_rsh, /* nb_rshift */ | |
2124 | valpy_and, /* nb_and */ | |
2125 | valpy_xor, /* nb_xor */ | |
2126 | valpy_or, /* nb_or */ | |
9a27f2c6 PK |
2127 | #ifdef IS_PY3K |
2128 | valpy_long, /* nb_int */ | |
2129 | NULL, /* reserved */ | |
2130 | #else | |
08c637de TJB |
2131 | NULL, /* nb_coerce */ |
2132 | valpy_int, /* nb_int */ | |
2133 | valpy_long, /* nb_long */ | |
9a27f2c6 | 2134 | #endif |
08c637de | 2135 | valpy_float, /* nb_float */ |
9a27f2c6 | 2136 | #ifndef IS_PY3K |
08c637de | 2137 | NULL, /* nb_oct */ |
9a27f2c6 PK |
2138 | NULL, /* nb_hex */ |
2139 | #endif | |
2140 | NULL, /* nb_inplace_add */ | |
2141 | NULL, /* nb_inplace_subtract */ | |
2142 | NULL, /* nb_inplace_multiply */ | |
e2b7f516 TT |
2143 | #ifndef IS_PY3K |
2144 | NULL, /* nb_inplace_divide */ | |
2145 | #endif | |
9a27f2c6 PK |
2146 | NULL, /* nb_inplace_remainder */ |
2147 | NULL, /* nb_inplace_power */ | |
2148 | NULL, /* nb_inplace_lshift */ | |
2149 | NULL, /* nb_inplace_rshift */ | |
2150 | NULL, /* nb_inplace_and */ | |
2151 | NULL, /* nb_inplace_xor */ | |
2152 | NULL, /* nb_inplace_or */ | |
2153 | NULL, /* nb_floor_divide */ | |
ddae9462 TT |
2154 | valpy_divide, /* nb_true_divide */ |
2155 | NULL, /* nb_inplace_floor_divide */ | |
2156 | NULL, /* nb_inplace_true_divide */ | |
ddae9462 | 2157 | valpy_long, /* nb_index */ |
f9176c46 PA |
2158 | }; |
2159 | ||
2160 | static PyMappingMethods value_object_as_mapping = { | |
2161 | valpy_length, | |
2162 | valpy_getitem, | |
2163 | valpy_setitem | |
2164 | }; | |
2165 | ||
2166 | PyTypeObject value_object_type = { | |
9a27f2c6 | 2167 | PyVarObject_HEAD_INIT (NULL, 0) |
f9176c46 PA |
2168 | "gdb.Value", /*tp_name*/ |
2169 | sizeof (value_object), /*tp_basicsize*/ | |
2170 | 0, /*tp_itemsize*/ | |
2171 | valpy_dealloc, /*tp_dealloc*/ | |
2172 | 0, /*tp_print*/ | |
2173 | 0, /*tp_getattr*/ | |
2174 | 0, /*tp_setattr*/ | |
2175 | 0, /*tp_compare*/ | |
2176 | 0, /*tp_repr*/ | |
2177 | &value_object_as_number, /*tp_as_number*/ | |
2178 | 0, /*tp_as_sequence*/ | |
2179 | &value_object_as_mapping, /*tp_as_mapping*/ | |
88d4aea7 | 2180 | valpy_hash, /*tp_hash*/ |
5374244e | 2181 | valpy_call, /*tp_call*/ |
f9176c46 PA |
2182 | valpy_str, /*tp_str*/ |
2183 | 0, /*tp_getattro*/ | |
2184 | 0, /*tp_setattro*/ | |
2185 | 0, /*tp_as_buffer*/ | |
9a2b4c1b MS |
2186 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_CHECKTYPES |
2187 | | Py_TPFLAGS_BASETYPE, /*tp_flags*/ | |
f9176c46 PA |
2188 | "GDB value object", /* tp_doc */ |
2189 | 0, /* tp_traverse */ | |
2190 | 0, /* tp_clear */ | |
2191 | valpy_richcompare, /* tp_richcompare */ | |
2192 | 0, /* tp_weaklistoffset */ | |
2193 | 0, /* tp_iter */ | |
2194 | 0, /* tp_iternext */ | |
08c637de TJB |
2195 | value_object_methods, /* tp_methods */ |
2196 | 0, /* tp_members */ | |
def2b000 | 2197 | value_object_getset, /* tp_getset */ |
08c637de TJB |
2198 | 0, /* tp_base */ |
2199 | 0, /* tp_dict */ | |
2200 | 0, /* tp_descr_get */ | |
2201 | 0, /* tp_descr_set */ | |
2202 | 0, /* tp_dictoffset */ | |
2203 | 0, /* tp_init */ | |
2204 | 0, /* tp_alloc */ | |
2205 | valpy_new /* tp_new */ | |
f9176c46 | 2206 | }; |