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2c74e833 TT |
1 | /* Python interface to types. |
2 | ||
28e7fd62 | 3 | Copyright (C) 2008-2013 Free Software Foundation, Inc. |
2c74e833 TT |
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 "value.h" | |
22 | #include "exceptions.h" | |
23 | #include "python-internal.h" | |
24 | #include "charset.h" | |
25 | #include "gdbtypes.h" | |
26 | #include "cp-support.h" | |
27 | #include "demangle.h" | |
28 | #include "objfiles.h" | |
e6c014f2 | 29 | #include "language.h" |
d839c8a4 | 30 | #include "vec.h" |
53342f27 | 31 | #include "typeprint.h" |
2c74e833 TT |
32 | |
33 | typedef struct pyty_type_object | |
34 | { | |
35 | PyObject_HEAD | |
36 | struct type *type; | |
37 | ||
38 | /* If a Type object is associated with an objfile, it is kept on a | |
39 | doubly-linked list, rooted in the objfile. This lets us copy the | |
40 | underlying struct type when the objfile is deleted. */ | |
41 | struct pyty_type_object *prev; | |
42 | struct pyty_type_object *next; | |
43 | } type_object; | |
44 | ||
62eec1a5 TT |
45 | static PyTypeObject type_object_type |
46 | CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("type_object"); | |
2c74e833 TT |
47 | |
48 | /* A Field object. */ | |
49 | typedef struct pyty_field_object | |
50 | { | |
51 | PyObject_HEAD | |
52 | ||
53 | /* Dictionary holding our attributes. */ | |
54 | PyObject *dict; | |
55 | } field_object; | |
56 | ||
62eec1a5 TT |
57 | static PyTypeObject field_object_type |
58 | CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("field_object"); | |
2c74e833 | 59 | |
a73bb892 PK |
60 | /* A type iterator object. */ |
61 | typedef struct { | |
62 | PyObject_HEAD | |
63 | /* The current field index. */ | |
64 | int field; | |
65 | /* What to return. */ | |
66 | enum gdbpy_iter_kind kind; | |
67 | /* Pointer back to the original source type object. */ | |
68 | struct pyty_type_object *source; | |
69 | } typy_iterator_object; | |
70 | ||
62eec1a5 TT |
71 | static PyTypeObject type_iterator_object_type |
72 | CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("typy_iterator_object"); | |
a73bb892 | 73 | |
2c74e833 TT |
74 | /* This is used to initialize various gdb.TYPE_ constants. */ |
75 | struct pyty_code | |
76 | { | |
77 | /* The code. */ | |
78 | enum type_code code; | |
79 | /* The name. */ | |
80 | const char *name; | |
81 | }; | |
82 | ||
0dab82e9 PK |
83 | /* Forward declarations. */ |
84 | static PyObject *typy_make_iter (PyObject *self, enum gdbpy_iter_kind kind); | |
85 | ||
2c74e833 TT |
86 | #define ENTRY(X) { X, #X } |
87 | ||
88 | static struct pyty_code pyty_codes[] = | |
89 | { | |
6b1755ce | 90 | ENTRY (TYPE_CODE_BITSTRING), |
2c74e833 TT |
91 | ENTRY (TYPE_CODE_PTR), |
92 | ENTRY (TYPE_CODE_ARRAY), | |
93 | ENTRY (TYPE_CODE_STRUCT), | |
94 | ENTRY (TYPE_CODE_UNION), | |
95 | ENTRY (TYPE_CODE_ENUM), | |
96 | ENTRY (TYPE_CODE_FLAGS), | |
97 | ENTRY (TYPE_CODE_FUNC), | |
98 | ENTRY (TYPE_CODE_INT), | |
99 | ENTRY (TYPE_CODE_FLT), | |
100 | ENTRY (TYPE_CODE_VOID), | |
101 | ENTRY (TYPE_CODE_SET), | |
102 | ENTRY (TYPE_CODE_RANGE), | |
103 | ENTRY (TYPE_CODE_STRING), | |
2c74e833 TT |
104 | ENTRY (TYPE_CODE_ERROR), |
105 | ENTRY (TYPE_CODE_METHOD), | |
106 | ENTRY (TYPE_CODE_METHODPTR), | |
107 | ENTRY (TYPE_CODE_MEMBERPTR), | |
108 | ENTRY (TYPE_CODE_REF), | |
109 | ENTRY (TYPE_CODE_CHAR), | |
110 | ENTRY (TYPE_CODE_BOOL), | |
111 | ENTRY (TYPE_CODE_COMPLEX), | |
112 | ENTRY (TYPE_CODE_TYPEDEF), | |
113 | ENTRY (TYPE_CODE_NAMESPACE), | |
114 | ENTRY (TYPE_CODE_DECFLOAT), | |
115 | ENTRY (TYPE_CODE_INTERNAL_FUNCTION), | |
116 | { TYPE_CODE_UNDEF, NULL } | |
117 | }; | |
118 | ||
119 | \f | |
120 | ||
121 | static void | |
122 | field_dealloc (PyObject *obj) | |
123 | { | |
124 | field_object *f = (field_object *) obj; | |
d59b6f6c | 125 | |
2c74e833 | 126 | Py_XDECREF (f->dict); |
9a27f2c6 | 127 | Py_TYPE (obj)->tp_free (obj); |
2c74e833 TT |
128 | } |
129 | ||
130 | static PyObject * | |
131 | field_new (void) | |
132 | { | |
133 | field_object *result = PyObject_New (field_object, &field_object_type); | |
d59b6f6c | 134 | |
2c74e833 TT |
135 | if (result) |
136 | { | |
137 | result->dict = PyDict_New (); | |
138 | if (!result->dict) | |
139 | { | |
140 | Py_DECREF (result); | |
141 | result = NULL; | |
142 | } | |
143 | } | |
144 | return (PyObject *) result; | |
145 | } | |
146 | ||
147 | \f | |
148 | ||
149 | /* Return the code for this type. */ | |
150 | static PyObject * | |
151 | typy_get_code (PyObject *self, void *closure) | |
152 | { | |
153 | struct type *type = ((type_object *) self)->type; | |
d59b6f6c | 154 | |
2c74e833 TT |
155 | return PyInt_FromLong (TYPE_CODE (type)); |
156 | } | |
157 | ||
158 | /* Helper function for typy_fields which converts a single field to a | |
a73bb892 PK |
159 | gdb.Field object. Returns NULL on error. */ |
160 | ||
2c74e833 TT |
161 | static PyObject * |
162 | convert_field (struct type *type, int field) | |
163 | { | |
164 | PyObject *result = field_new (); | |
165 | PyObject *arg; | |
166 | ||
167 | if (!result) | |
168 | return NULL; | |
169 | ||
170 | if (!field_is_static (&TYPE_FIELD (type, field))) | |
171 | { | |
14e75d8e JK |
172 | const char *attrstring; |
173 | ||
174 | if (TYPE_CODE (type) == TYPE_CODE_ENUM) | |
175 | { | |
176 | arg = gdb_py_long_from_longest (TYPE_FIELD_ENUMVAL (type, field)); | |
177 | attrstring = "enumval"; | |
178 | } | |
179 | else | |
180 | { | |
200bc880 | 181 | arg = gdb_py_long_from_longest (TYPE_FIELD_BITPOS (type, field)); |
14e75d8e JK |
182 | attrstring = "bitpos"; |
183 | } | |
184 | ||
2c74e833 TT |
185 | if (!arg) |
186 | goto fail; | |
187 | ||
4fb2c64a JK |
188 | /* At least python-2.4 had the second parameter non-const. */ |
189 | if (PyObject_SetAttrString (result, (char *) attrstring, arg) < 0) | |
2c74e833 | 190 | goto failarg; |
db6573d6 | 191 | Py_DECREF (arg); |
2c74e833 TT |
192 | } |
193 | ||
194 | if (TYPE_FIELD_NAME (type, field)) | |
195 | arg = PyString_FromString (TYPE_FIELD_NAME (type, field)); | |
196 | else | |
197 | { | |
198 | arg = Py_None; | |
199 | Py_INCREF (arg); | |
200 | } | |
201 | if (!arg) | |
202 | goto fail; | |
203 | if (PyObject_SetAttrString (result, "name", arg) < 0) | |
204 | goto failarg; | |
db6573d6 | 205 | Py_DECREF (arg); |
2c74e833 TT |
206 | |
207 | arg = TYPE_FIELD_ARTIFICIAL (type, field) ? Py_True : Py_False; | |
208 | Py_INCREF (arg); | |
209 | if (PyObject_SetAttrString (result, "artificial", arg) < 0) | |
210 | goto failarg; | |
db6573d6 | 211 | Py_DECREF (arg); |
2c74e833 | 212 | |
bfd31e71 PM |
213 | if (TYPE_CODE (type) == TYPE_CODE_CLASS) |
214 | arg = field < TYPE_N_BASECLASSES (type) ? Py_True : Py_False; | |
215 | else | |
216 | arg = Py_False; | |
217 | Py_INCREF (arg); | |
218 | if (PyObject_SetAttrString (result, "is_base_class", arg) < 0) | |
219 | goto failarg; | |
db6573d6 | 220 | Py_DECREF (arg); |
bfd31e71 | 221 | |
2c74e833 TT |
222 | arg = PyLong_FromLong (TYPE_FIELD_BITSIZE (type, field)); |
223 | if (!arg) | |
224 | goto fail; | |
225 | if (PyObject_SetAttrString (result, "bitsize", arg) < 0) | |
226 | goto failarg; | |
db6573d6 | 227 | Py_DECREF (arg); |
2c74e833 TT |
228 | |
229 | /* A field can have a NULL type in some situations. */ | |
230 | if (TYPE_FIELD_TYPE (type, field) == NULL) | |
231 | { | |
232 | arg = Py_None; | |
233 | Py_INCREF (arg); | |
234 | } | |
235 | else | |
236 | arg = type_to_type_object (TYPE_FIELD_TYPE (type, field)); | |
237 | if (!arg) | |
238 | goto fail; | |
239 | if (PyObject_SetAttrString (result, "type", arg) < 0) | |
240 | goto failarg; | |
db6573d6 | 241 | Py_DECREF (arg); |
2c74e833 TT |
242 | |
243 | return result; | |
244 | ||
245 | failarg: | |
246 | Py_DECREF (arg); | |
247 | fail: | |
248 | Py_DECREF (result); | |
249 | return NULL; | |
250 | } | |
251 | ||
a73bb892 PK |
252 | /* Helper function to return the name of a field, as a gdb.Field object. |
253 | If the field doesn't have a name, None is returned. */ | |
254 | ||
2c74e833 | 255 | static PyObject * |
a73bb892 | 256 | field_name (struct type *type, int field) |
2c74e833 TT |
257 | { |
258 | PyObject *result; | |
a73bb892 PK |
259 | |
260 | if (TYPE_FIELD_NAME (type, field)) | |
261 | result = PyString_FromString (TYPE_FIELD_NAME (type, field)); | |
262 | else | |
263 | { | |
264 | result = Py_None; | |
265 | Py_INCREF (result); | |
266 | } | |
267 | return result; | |
268 | } | |
269 | ||
270 | /* Helper function for Type standard mapping methods. Returns a | |
271 | Python object for field i of the type. "kind" specifies what to | |
272 | return: the name of the field, a gdb.Field object corresponding to | |
273 | the field, or a tuple consisting of field name and gdb.Field | |
274 | object. */ | |
275 | ||
276 | static PyObject * | |
277 | make_fielditem (struct type *type, int i, enum gdbpy_iter_kind kind) | |
278 | { | |
279 | PyObject *item = NULL, *key = NULL, *value = NULL; | |
280 | ||
281 | switch (kind) | |
282 | { | |
283 | case iter_items: | |
284 | key = field_name (type, i); | |
285 | if (key == NULL) | |
286 | goto fail; | |
287 | value = convert_field (type, i); | |
288 | if (value == NULL) | |
289 | goto fail; | |
290 | item = PyTuple_New (2); | |
291 | if (item == NULL) | |
292 | goto fail; | |
293 | PyTuple_SET_ITEM (item, 0, key); | |
294 | PyTuple_SET_ITEM (item, 1, value); | |
295 | break; | |
296 | case iter_keys: | |
297 | item = field_name (type, i); | |
298 | break; | |
299 | case iter_values: | |
300 | item = convert_field (type, i); | |
301 | break; | |
0d3a2e8a TT |
302 | default: |
303 | gdb_assert_not_reached ("invalid gdbpy_iter_kind"); | |
a73bb892 PK |
304 | } |
305 | return item; | |
256458bc | 306 | |
a73bb892 PK |
307 | fail: |
308 | Py_XDECREF (key); | |
309 | Py_XDECREF (value); | |
310 | Py_XDECREF (item); | |
311 | return NULL; | |
312 | } | |
313 | ||
314 | /* Return a sequence of all field names, fields, or (name, field) pairs. | |
315 | Each field is a gdb.Field object. */ | |
316 | ||
317 | static PyObject * | |
318 | typy_fields_items (PyObject *self, enum gdbpy_iter_kind kind) | |
319 | { | |
f6b47be4 | 320 | PyObject *py_type = self; |
0dab82e9 | 321 | PyObject *result = NULL, *iter = NULL; |
f6b47be4 DE |
322 | volatile struct gdb_exception except; |
323 | struct type *type = ((type_object *) py_type)->type; | |
324 | struct type *checked_type = type; | |
325 | ||
326 | TRY_CATCH (except, RETURN_MASK_ALL) | |
327 | { | |
328 | CHECK_TYPEDEF (checked_type); | |
329 | } | |
330 | GDB_PY_HANDLE_EXCEPTION (except); | |
331 | ||
332 | if (checked_type != type) | |
333 | py_type = type_to_type_object (checked_type); | |
334 | iter = typy_make_iter (py_type, kind); | |
335 | if (checked_type != type) | |
336 | { | |
337 | /* Need to wrap this in braces because Py_DECREF isn't wrapped | |
338 | in a do{}while(0). */ | |
339 | Py_DECREF (py_type); | |
340 | } | |
341 | if (iter != NULL) | |
342 | { | |
343 | result = PySequence_List (iter); | |
344 | Py_DECREF (iter); | |
345 | } | |
346 | ||
2c74e833 | 347 | return result; |
a73bb892 PK |
348 | } |
349 | ||
350 | /* Return a sequence of all fields. Each field is a gdb.Field object. */ | |
351 | ||
352 | static PyObject * | |
9cc10fd1 | 353 | typy_values (PyObject *self, PyObject *args) |
a73bb892 PK |
354 | { |
355 | return typy_fields_items (self, iter_values); | |
356 | } | |
357 | ||
9cc10fd1 | 358 | /* Return a sequence of all fields. Each field is a gdb.Field object. |
256458bc | 359 | This method is similar to typy_values, except where the supplied |
9cc10fd1 PK |
360 | gdb.Type is an array, in which case it returns a list of one entry |
361 | which is a gdb.Field object for a range (the array bounds). */ | |
362 | ||
363 | static PyObject * | |
364 | typy_fields (PyObject *self, PyObject *args) | |
365 | { | |
366 | struct type *type = ((type_object *) self)->type; | |
367 | PyObject *r, *rl; | |
256458bc | 368 | |
9cc10fd1 PK |
369 | if (TYPE_CODE (type) != TYPE_CODE_ARRAY) |
370 | return typy_fields_items (self, iter_values); | |
371 | ||
372 | /* Array type. Handle this as a special case because the common | |
373 | machinery wants struct or union or enum types. Build a list of | |
374 | one entry which is the range for the array. */ | |
375 | r = convert_field (type, 0); | |
376 | if (r == NULL) | |
377 | return NULL; | |
256458bc | 378 | |
9cc10fd1 | 379 | rl = Py_BuildValue ("[O]", r); |
53e66479 | 380 | Py_DECREF (r); |
9cc10fd1 PK |
381 | |
382 | return rl; | |
383 | } | |
384 | ||
a73bb892 PK |
385 | /* Return a sequence of all field names. Each field is a gdb.Field object. */ |
386 | ||
387 | static PyObject * | |
388 | typy_field_names (PyObject *self, PyObject *args) | |
389 | { | |
390 | return typy_fields_items (self, iter_keys); | |
391 | } | |
392 | ||
256458bc | 393 | /* Return a sequence of all (name, fields) pairs. Each field is a |
a73bb892 PK |
394 | gdb.Field object. */ |
395 | ||
396 | static PyObject * | |
397 | typy_items (PyObject *self, PyObject *args) | |
398 | { | |
399 | return typy_fields_items (self, iter_items); | |
2c74e833 TT |
400 | } |
401 | ||
402 | /* Return the type's tag, or None. */ | |
403 | static PyObject * | |
404 | typy_get_tag (PyObject *self, void *closure) | |
405 | { | |
406 | struct type *type = ((type_object *) self)->type; | |
d59b6f6c | 407 | |
2c74e833 TT |
408 | if (!TYPE_TAG_NAME (type)) |
409 | Py_RETURN_NONE; | |
410 | return PyString_FromString (TYPE_TAG_NAME (type)); | |
411 | } | |
412 | ||
413 | /* Return the type, stripped of typedefs. */ | |
414 | static PyObject * | |
415 | typy_strip_typedefs (PyObject *self, PyObject *args) | |
416 | { | |
417 | struct type *type = ((type_object *) self)->type; | |
5d9c5995 PM |
418 | volatile struct gdb_exception except; |
419 | ||
420 | TRY_CATCH (except, RETURN_MASK_ALL) | |
421 | { | |
422 | type = check_typedef (type); | |
423 | } | |
424 | GDB_PY_HANDLE_EXCEPTION (except); | |
2c74e833 | 425 | |
bc9abe4a | 426 | return type_to_type_object (type); |
2c74e833 TT |
427 | } |
428 | ||
9cc10fd1 PK |
429 | /* Strip typedefs and pointers/reference from a type. Then check that |
430 | it is a struct, union, or enum type. If not, raise TypeError. */ | |
431 | ||
432 | static struct type * | |
433 | typy_get_composite (struct type *type) | |
434 | { | |
435 | volatile struct gdb_exception except; | |
436 | ||
437 | for (;;) | |
438 | { | |
439 | TRY_CATCH (except, RETURN_MASK_ALL) | |
440 | { | |
441 | CHECK_TYPEDEF (type); | |
442 | } | |
56cc411c | 443 | GDB_PY_HANDLE_EXCEPTION (except); |
9cc10fd1 PK |
444 | |
445 | if (TYPE_CODE (type) != TYPE_CODE_PTR | |
446 | && TYPE_CODE (type) != TYPE_CODE_REF) | |
447 | break; | |
448 | type = TYPE_TARGET_TYPE (type); | |
449 | } | |
450 | ||
451 | /* If this is not a struct, union, or enum type, raise TypeError | |
452 | exception. */ | |
256458bc | 453 | if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
9cc10fd1 PK |
454 | && TYPE_CODE (type) != TYPE_CODE_UNION |
455 | && TYPE_CODE (type) != TYPE_CODE_ENUM) | |
456 | { | |
457 | PyErr_SetString (PyExc_TypeError, | |
458 | "Type is not a structure, union, or enum type."); | |
459 | return NULL; | |
460 | } | |
256458bc | 461 | |
9cc10fd1 PK |
462 | return type; |
463 | } | |
464 | ||
a72c3253 | 465 | /* Helper for typy_array and typy_vector. */ |
702c2711 TT |
466 | |
467 | static PyObject * | |
a72c3253 | 468 | typy_array_1 (PyObject *self, PyObject *args, int is_vector) |
702c2711 | 469 | { |
74aedc46 | 470 | long n1, n2; |
702c2711 TT |
471 | PyObject *n2_obj = NULL; |
472 | struct type *array = NULL; | |
473 | struct type *type = ((type_object *) self)->type; | |
474 | volatile struct gdb_exception except; | |
475 | ||
74aedc46 | 476 | if (! PyArg_ParseTuple (args, "l|O", &n1, &n2_obj)) |
702c2711 TT |
477 | return NULL; |
478 | ||
479 | if (n2_obj) | |
480 | { | |
481 | if (!PyInt_Check (n2_obj)) | |
482 | { | |
483 | PyErr_SetString (PyExc_RuntimeError, | |
484 | _("Array bound must be an integer")); | |
485 | return NULL; | |
486 | } | |
74aedc46 TT |
487 | |
488 | if (! gdb_py_int_as_long (n2_obj, &n2)) | |
702c2711 TT |
489 | return NULL; |
490 | } | |
491 | else | |
492 | { | |
493 | n2 = n1; | |
494 | n1 = 0; | |
495 | } | |
496 | ||
497 | if (n2 < n1) | |
498 | { | |
499 | PyErr_SetString (PyExc_ValueError, | |
500 | _("Array length must not be negative")); | |
501 | return NULL; | |
502 | } | |
503 | ||
504 | TRY_CATCH (except, RETURN_MASK_ALL) | |
505 | { | |
506 | array = lookup_array_range_type (type, n1, n2); | |
a72c3253 DE |
507 | if (is_vector) |
508 | make_vector_type (array); | |
702c2711 TT |
509 | } |
510 | GDB_PY_HANDLE_EXCEPTION (except); | |
511 | ||
512 | return type_to_type_object (array); | |
513 | } | |
514 | ||
a72c3253 DE |
515 | /* Return an array type. */ |
516 | ||
517 | static PyObject * | |
518 | typy_array (PyObject *self, PyObject *args) | |
519 | { | |
520 | return typy_array_1 (self, args, 0); | |
521 | } | |
522 | ||
523 | /* Return a vector type. */ | |
524 | ||
525 | static PyObject * | |
526 | typy_vector (PyObject *self, PyObject *args) | |
527 | { | |
528 | return typy_array_1 (self, args, 1); | |
529 | } | |
530 | ||
2c74e833 TT |
531 | /* Return a Type object which represents a pointer to SELF. */ |
532 | static PyObject * | |
533 | typy_pointer (PyObject *self, PyObject *args) | |
534 | { | |
535 | struct type *type = ((type_object *) self)->type; | |
536 | volatile struct gdb_exception except; | |
537 | ||
538 | TRY_CATCH (except, RETURN_MASK_ALL) | |
539 | { | |
540 | type = lookup_pointer_type (type); | |
541 | } | |
542 | GDB_PY_HANDLE_EXCEPTION (except); | |
543 | ||
544 | return type_to_type_object (type); | |
545 | } | |
546 | ||
361ae042 PM |
547 | /* Return the range of a type represented by SELF. The return type is |
548 | a tuple. The first element of the tuple contains the low bound, | |
549 | while the second element of the tuple contains the high bound. */ | |
550 | static PyObject * | |
551 | typy_range (PyObject *self, PyObject *args) | |
552 | { | |
553 | struct type *type = ((type_object *) self)->type; | |
554 | PyObject *result; | |
555 | PyObject *low_bound = NULL, *high_bound = NULL; | |
8d099ae9 PM |
556 | /* Initialize these to appease GCC warnings. */ |
557 | LONGEST low = 0, high = 0; | |
361ae042 PM |
558 | |
559 | if (TYPE_CODE (type) != TYPE_CODE_ARRAY | |
560 | && TYPE_CODE (type) != TYPE_CODE_STRING | |
561 | && TYPE_CODE (type) != TYPE_CODE_RANGE) | |
562 | { | |
563 | PyErr_SetString (PyExc_RuntimeError, | |
044c0f87 | 564 | _("This type does not have a range.")); |
361ae042 PM |
565 | return NULL; |
566 | } | |
567 | ||
568 | switch (TYPE_CODE (type)) | |
569 | { | |
570 | case TYPE_CODE_ARRAY: | |
571 | case TYPE_CODE_STRING: | |
572 | low = TYPE_LOW_BOUND (TYPE_INDEX_TYPE (type)); | |
573 | high = TYPE_HIGH_BOUND (TYPE_INDEX_TYPE (type)); | |
574 | break; | |
575 | case TYPE_CODE_RANGE: | |
576 | low = TYPE_LOW_BOUND (type); | |
577 | high = TYPE_HIGH_BOUND (type); | |
578 | break; | |
579 | } | |
580 | ||
581 | low_bound = PyLong_FromLong (low); | |
582 | if (!low_bound) | |
583 | goto failarg; | |
584 | ||
585 | high_bound = PyLong_FromLong (high); | |
586 | if (!high_bound) | |
587 | goto failarg; | |
588 | ||
589 | result = PyTuple_New (2); | |
590 | if (!result) | |
591 | goto failarg; | |
592 | ||
593 | if (PyTuple_SetItem (result, 0, low_bound) != 0) | |
594 | { | |
595 | Py_DECREF (result); | |
596 | goto failarg; | |
597 | } | |
598 | if (PyTuple_SetItem (result, 1, high_bound) != 0) | |
599 | { | |
600 | Py_DECREF (high_bound); | |
601 | Py_DECREF (result); | |
602 | return NULL; | |
603 | } | |
604 | return result; | |
256458bc | 605 | |
361ae042 PM |
606 | failarg: |
607 | Py_XDECREF (high_bound); | |
608 | Py_XDECREF (low_bound); | |
609 | return NULL; | |
610 | } | |
611 | ||
2c74e833 TT |
612 | /* Return a Type object which represents a reference to SELF. */ |
613 | static PyObject * | |
614 | typy_reference (PyObject *self, PyObject *args) | |
615 | { | |
616 | struct type *type = ((type_object *) self)->type; | |
617 | volatile struct gdb_exception except; | |
618 | ||
619 | TRY_CATCH (except, RETURN_MASK_ALL) | |
620 | { | |
621 | type = lookup_reference_type (type); | |
622 | } | |
623 | GDB_PY_HANDLE_EXCEPTION (except); | |
624 | ||
625 | return type_to_type_object (type); | |
626 | } | |
627 | ||
628 | /* Return a Type object which represents the target type of SELF. */ | |
629 | static PyObject * | |
630 | typy_target (PyObject *self, PyObject *args) | |
631 | { | |
632 | struct type *type = ((type_object *) self)->type; | |
633 | ||
634 | if (!TYPE_TARGET_TYPE (type)) | |
635 | { | |
256458bc | 636 | PyErr_SetString (PyExc_RuntimeError, |
044c0f87 | 637 | _("Type does not have a target.")); |
2c74e833 TT |
638 | return NULL; |
639 | } | |
640 | ||
641 | return type_to_type_object (TYPE_TARGET_TYPE (type)); | |
642 | } | |
643 | ||
644 | /* Return a const-qualified type variant. */ | |
645 | static PyObject * | |
646 | typy_const (PyObject *self, PyObject *args) | |
647 | { | |
648 | struct type *type = ((type_object *) self)->type; | |
649 | volatile struct gdb_exception except; | |
650 | ||
651 | TRY_CATCH (except, RETURN_MASK_ALL) | |
652 | { | |
653 | type = make_cv_type (1, 0, type, NULL); | |
654 | } | |
655 | GDB_PY_HANDLE_EXCEPTION (except); | |
656 | ||
657 | return type_to_type_object (type); | |
658 | } | |
659 | ||
660 | /* Return a volatile-qualified type variant. */ | |
661 | static PyObject * | |
662 | typy_volatile (PyObject *self, PyObject *args) | |
663 | { | |
664 | struct type *type = ((type_object *) self)->type; | |
665 | volatile struct gdb_exception except; | |
666 | ||
667 | TRY_CATCH (except, RETURN_MASK_ALL) | |
668 | { | |
669 | type = make_cv_type (0, 1, type, NULL); | |
670 | } | |
671 | GDB_PY_HANDLE_EXCEPTION (except); | |
672 | ||
673 | return type_to_type_object (type); | |
674 | } | |
675 | ||
676 | /* Return an unqualified type variant. */ | |
677 | static PyObject * | |
678 | typy_unqualified (PyObject *self, PyObject *args) | |
679 | { | |
680 | struct type *type = ((type_object *) self)->type; | |
681 | volatile struct gdb_exception except; | |
682 | ||
683 | TRY_CATCH (except, RETURN_MASK_ALL) | |
684 | { | |
685 | type = make_cv_type (0, 0, type, NULL); | |
686 | } | |
687 | GDB_PY_HANDLE_EXCEPTION (except); | |
688 | ||
689 | return type_to_type_object (type); | |
690 | } | |
691 | ||
692 | /* Return the size of the type represented by SELF, in bytes. */ | |
693 | static PyObject * | |
694 | typy_get_sizeof (PyObject *self, void *closure) | |
695 | { | |
696 | struct type *type = ((type_object *) self)->type; | |
697 | volatile struct gdb_exception except; | |
698 | ||
699 | TRY_CATCH (except, RETURN_MASK_ALL) | |
700 | { | |
701 | check_typedef (type); | |
702 | } | |
703 | /* Ignore exceptions. */ | |
704 | ||
200bc880 | 705 | return gdb_py_long_from_longest (TYPE_LENGTH (type)); |
2c74e833 TT |
706 | } |
707 | ||
708 | static struct type * | |
9df2fbc4 | 709 | typy_lookup_typename (const char *type_name, const struct block *block) |
2c74e833 TT |
710 | { |
711 | struct type *type = NULL; | |
712 | volatile struct gdb_exception except; | |
d59b6f6c | 713 | |
2c74e833 TT |
714 | TRY_CATCH (except, RETURN_MASK_ALL) |
715 | { | |
716 | if (!strncmp (type_name, "struct ", 7)) | |
717 | type = lookup_struct (type_name + 7, NULL); | |
718 | else if (!strncmp (type_name, "union ", 6)) | |
719 | type = lookup_union (type_name + 6, NULL); | |
720 | else if (!strncmp (type_name, "enum ", 5)) | |
721 | type = lookup_enum (type_name + 5, NULL); | |
722 | else | |
d452c4bc | 723 | type = lookup_typename (python_language, python_gdbarch, |
5107b149 | 724 | type_name, block, 0); |
2c74e833 | 725 | } |
56cc411c | 726 | GDB_PY_HANDLE_EXCEPTION (except); |
2c74e833 TT |
727 | |
728 | return type; | |
729 | } | |
730 | ||
731 | static struct type * | |
5107b149 | 732 | typy_lookup_type (struct demangle_component *demangled, |
9df2fbc4 | 733 | const struct block *block) |
2c74e833 | 734 | { |
cd829959 | 735 | struct type *type, *rtype = NULL; |
76dce0be | 736 | char *type_name = NULL; |
2c74e833 | 737 | enum demangle_component_type demangled_type; |
76dce0be | 738 | volatile struct gdb_exception except; |
2c74e833 TT |
739 | |
740 | /* Save the type: typy_lookup_type() may (indirectly) overwrite | |
741 | memory pointed by demangled. */ | |
742 | demangled_type = demangled->type; | |
743 | ||
744 | if (demangled_type == DEMANGLE_COMPONENT_POINTER | |
745 | || demangled_type == DEMANGLE_COMPONENT_REFERENCE | |
746 | || demangled_type == DEMANGLE_COMPONENT_CONST | |
747 | || demangled_type == DEMANGLE_COMPONENT_VOLATILE) | |
748 | { | |
5107b149 | 749 | type = typy_lookup_type (demangled->u.s_binary.left, block); |
2c74e833 TT |
750 | if (! type) |
751 | return NULL; | |
752 | ||
76dce0be PM |
753 | TRY_CATCH (except, RETURN_MASK_ALL) |
754 | { | |
cd829959 PM |
755 | /* If the demangled_type matches with one of the types |
756 | below, run the corresponding function and save the type | |
757 | to return later. We cannot just return here as we are in | |
758 | an exception handler. */ | |
76dce0be PM |
759 | switch (demangled_type) |
760 | { | |
761 | case DEMANGLE_COMPONENT_REFERENCE: | |
cd829959 PM |
762 | rtype = lookup_reference_type (type); |
763 | break; | |
76dce0be | 764 | case DEMANGLE_COMPONENT_POINTER: |
cd829959 PM |
765 | rtype = lookup_pointer_type (type); |
766 | break; | |
76dce0be | 767 | case DEMANGLE_COMPONENT_CONST: |
cd829959 PM |
768 | rtype = make_cv_type (1, 0, type, NULL); |
769 | break; | |
76dce0be | 770 | case DEMANGLE_COMPONENT_VOLATILE: |
cd829959 PM |
771 | rtype = make_cv_type (0, 1, type, NULL); |
772 | break; | |
76dce0be | 773 | } |
76dce0be | 774 | } |
56cc411c | 775 | GDB_PY_HANDLE_EXCEPTION (except); |
2c74e833 | 776 | } |
256458bc | 777 | |
cd829959 PM |
778 | /* If we have a type from the switch statement above, just return |
779 | that. */ | |
780 | if (rtype) | |
781 | return rtype; | |
256458bc | 782 | |
cd829959 PM |
783 | /* We don't have a type, so lookup the type. */ |
784 | type_name = cp_comp_to_string (demangled, 10); | |
5107b149 | 785 | type = typy_lookup_typename (type_name, block); |
2c74e833 TT |
786 | xfree (type_name); |
787 | ||
788 | return type; | |
789 | } | |
790 | ||
326fd672 TT |
791 | /* This is a helper function for typy_template_argument that is used |
792 | when the type does not have template symbols attached. It works by | |
793 | parsing the type name. This happens with compilers, like older | |
794 | versions of GCC, that do not emit DW_TAG_template_*. */ | |
795 | ||
2c74e833 | 796 | static PyObject * |
9df2fbc4 | 797 | typy_legacy_template_argument (struct type *type, const struct block *block, |
326fd672 | 798 | int argno) |
2c74e833 | 799 | { |
326fd672 | 800 | int i; |
2c74e833 | 801 | struct demangle_component *demangled; |
5d9c5995 | 802 | struct demangle_parse_info *info = NULL; |
2c74e833 TT |
803 | const char *err; |
804 | struct type *argtype; | |
3a93a0c2 | 805 | struct cleanup *cleanup; |
5d9c5995 | 806 | volatile struct gdb_exception except; |
2c74e833 TT |
807 | |
808 | if (TYPE_NAME (type) == NULL) | |
809 | { | |
5107b149 | 810 | PyErr_SetString (PyExc_RuntimeError, _("Null type name.")); |
2c74e833 TT |
811 | return NULL; |
812 | } | |
813 | ||
5d9c5995 PM |
814 | TRY_CATCH (except, RETURN_MASK_ALL) |
815 | { | |
816 | /* Note -- this is not thread-safe. */ | |
817 | info = cp_demangled_name_to_comp (TYPE_NAME (type), &err); | |
818 | } | |
819 | GDB_PY_HANDLE_EXCEPTION (except); | |
820 | ||
3a93a0c2 | 821 | if (! info) |
2c74e833 TT |
822 | { |
823 | PyErr_SetString (PyExc_RuntimeError, err); | |
824 | return NULL; | |
825 | } | |
3a93a0c2 KS |
826 | demangled = info->tree; |
827 | cleanup = make_cleanup_cp_demangled_name_parse_free (info); | |
2c74e833 TT |
828 | |
829 | /* Strip off component names. */ | |
830 | while (demangled->type == DEMANGLE_COMPONENT_QUAL_NAME | |
831 | || demangled->type == DEMANGLE_COMPONENT_LOCAL_NAME) | |
832 | demangled = demangled->u.s_binary.right; | |
833 | ||
834 | if (demangled->type != DEMANGLE_COMPONENT_TEMPLATE) | |
835 | { | |
3a93a0c2 | 836 | do_cleanups (cleanup); |
5107b149 | 837 | PyErr_SetString (PyExc_RuntimeError, _("Type is not a template.")); |
2c74e833 TT |
838 | return NULL; |
839 | } | |
840 | ||
841 | /* Skip from the template to the arguments. */ | |
842 | demangled = demangled->u.s_binary.right; | |
843 | ||
844 | for (i = 0; demangled && i < argno; ++i) | |
845 | demangled = demangled->u.s_binary.right; | |
846 | ||
847 | if (! demangled) | |
848 | { | |
3a93a0c2 | 849 | do_cleanups (cleanup); |
5107b149 | 850 | PyErr_Format (PyExc_RuntimeError, _("No argument %d in template."), |
2c74e833 TT |
851 | argno); |
852 | return NULL; | |
853 | } | |
854 | ||
5107b149 | 855 | argtype = typy_lookup_type (demangled->u.s_binary.left, block); |
3a93a0c2 | 856 | do_cleanups (cleanup); |
2c74e833 TT |
857 | if (! argtype) |
858 | return NULL; | |
859 | ||
860 | return type_to_type_object (argtype); | |
326fd672 TT |
861 | } |
862 | ||
863 | static PyObject * | |
864 | typy_template_argument (PyObject *self, PyObject *args) | |
865 | { | |
866 | int argno; | |
867 | struct type *type = ((type_object *) self)->type; | |
9df2fbc4 | 868 | const struct block *block = NULL; |
326fd672 TT |
869 | PyObject *block_obj = NULL; |
870 | struct symbol *sym; | |
871 | struct value *val = NULL; | |
872 | volatile struct gdb_exception except; | |
873 | ||
874 | if (! PyArg_ParseTuple (args, "i|O", &argno, &block_obj)) | |
875 | return NULL; | |
876 | ||
877 | if (block_obj) | |
878 | { | |
879 | block = block_object_to_block (block_obj); | |
880 | if (! block) | |
881 | { | |
882 | PyErr_SetString (PyExc_RuntimeError, | |
883 | _("Second argument must be block.")); | |
884 | return NULL; | |
885 | } | |
886 | } | |
887 | ||
05d0e1e7 TT |
888 | TRY_CATCH (except, RETURN_MASK_ALL) |
889 | { | |
890 | type = check_typedef (type); | |
891 | if (TYPE_CODE (type) == TYPE_CODE_REF) | |
892 | type = check_typedef (TYPE_TARGET_TYPE (type)); | |
893 | } | |
894 | GDB_PY_HANDLE_EXCEPTION (except); | |
326fd672 TT |
895 | |
896 | /* We might not have DW_TAG_template_*, so try to parse the type's | |
897 | name. This is inefficient if we do not have a template type -- | |
898 | but that is going to wind up as an error anyhow. */ | |
899 | if (! TYPE_N_TEMPLATE_ARGUMENTS (type)) | |
900 | return typy_legacy_template_argument (type, block, argno); | |
901 | ||
902 | if (argno >= TYPE_N_TEMPLATE_ARGUMENTS (type)) | |
903 | { | |
904 | PyErr_Format (PyExc_RuntimeError, _("No argument %d in template."), | |
905 | argno); | |
906 | return NULL; | |
907 | } | |
908 | ||
909 | sym = TYPE_TEMPLATE_ARGUMENT (type, argno); | |
910 | if (SYMBOL_CLASS (sym) == LOC_TYPEDEF) | |
911 | return type_to_type_object (SYMBOL_TYPE (sym)); | |
912 | else if (SYMBOL_CLASS (sym) == LOC_OPTIMIZED_OUT) | |
913 | { | |
914 | PyErr_Format (PyExc_RuntimeError, | |
915 | _("Template argument is optimized out")); | |
916 | return NULL; | |
917 | } | |
918 | ||
919 | TRY_CATCH (except, RETURN_MASK_ALL) | |
920 | { | |
921 | val = value_of_variable (sym, block); | |
922 | } | |
923 | GDB_PY_HANDLE_EXCEPTION (except); | |
924 | ||
925 | return value_to_value_object (val); | |
2c74e833 TT |
926 | } |
927 | ||
928 | static PyObject * | |
929 | typy_str (PyObject *self) | |
930 | { | |
931 | volatile struct gdb_exception except; | |
932 | char *thetype = NULL; | |
759ef836 | 933 | long length = 0; |
2c74e833 TT |
934 | PyObject *result; |
935 | ||
936 | TRY_CATCH (except, RETURN_MASK_ALL) | |
937 | { | |
938 | struct cleanup *old_chain; | |
939 | struct ui_file *stb; | |
2c74e833 TT |
940 | |
941 | stb = mem_fileopen (); | |
942 | old_chain = make_cleanup_ui_file_delete (stb); | |
943 | ||
53342f27 TT |
944 | LA_PRINT_TYPE (type_object_to_type (self), "", stb, -1, 0, |
945 | &type_print_raw_options); | |
2c74e833 TT |
946 | |
947 | thetype = ui_file_xstrdup (stb, &length); | |
948 | do_cleanups (old_chain); | |
949 | } | |
950 | if (except.reason < 0) | |
951 | { | |
952 | xfree (thetype); | |
953 | GDB_PY_HANDLE_EXCEPTION (except); | |
954 | } | |
955 | ||
759ef836 | 956 | result = PyUnicode_Decode (thetype, length, host_charset (), NULL); |
2c74e833 TT |
957 | xfree (thetype); |
958 | ||
959 | return result; | |
960 | } | |
961 | ||
d839c8a4 TT |
962 | /* Implement the richcompare method. */ |
963 | ||
964 | static PyObject * | |
965 | typy_richcompare (PyObject *self, PyObject *other, int op) | |
966 | { | |
967 | int result = Py_NE; | |
968 | struct type *type1 = type_object_to_type (self); | |
969 | struct type *type2 = type_object_to_type (other); | |
970 | volatile struct gdb_exception except; | |
971 | ||
972 | /* We can only compare ourselves to another Type object, and only | |
973 | for equality or inequality. */ | |
974 | if (type2 == NULL || (op != Py_EQ && op != Py_NE)) | |
975 | { | |
976 | Py_INCREF (Py_NotImplemented); | |
977 | return Py_NotImplemented; | |
978 | } | |
979 | ||
980 | if (type1 == type2) | |
981 | result = Py_EQ; | |
982 | else | |
983 | { | |
d839c8a4 TT |
984 | TRY_CATCH (except, RETURN_MASK_ALL) |
985 | { | |
ca092b61 | 986 | result = types_deeply_equal (type1, type2); |
d839c8a4 | 987 | } |
ca092b61 DE |
988 | /* If there is a GDB exception, a comparison is not capable |
989 | (or trusted), so exit. */ | |
76dce0be | 990 | GDB_PY_HANDLE_EXCEPTION (except); |
d839c8a4 TT |
991 | } |
992 | ||
ca092b61 | 993 | if (op == (result ? Py_EQ : Py_NE)) |
d839c8a4 TT |
994 | Py_RETURN_TRUE; |
995 | Py_RETURN_FALSE; | |
996 | } | |
997 | ||
2c74e833 TT |
998 | \f |
999 | ||
1000 | static const struct objfile_data *typy_objfile_data_key; | |
1001 | ||
1002 | static void | |
c1bd65d0 | 1003 | save_objfile_types (struct objfile *objfile, void *datum) |
2c74e833 TT |
1004 | { |
1005 | type_object *obj = datum; | |
1006 | htab_t copied_types; | |
1007 | struct cleanup *cleanup; | |
2c74e833 | 1008 | |
0646da15 TT |
1009 | if (!gdb_python_initialized) |
1010 | return; | |
1011 | ||
2c74e833 TT |
1012 | /* This prevents another thread from freeing the objects we're |
1013 | operating on. */ | |
d452c4bc | 1014 | cleanup = ensure_python_env (get_objfile_arch (objfile), current_language); |
2c74e833 TT |
1015 | |
1016 | copied_types = create_copied_types_hash (objfile); | |
1017 | ||
1018 | while (obj) | |
1019 | { | |
1020 | type_object *next = obj->next; | |
1021 | ||
1022 | htab_empty (copied_types); | |
1023 | ||
1024 | obj->type = copy_type_recursive (objfile, obj->type, copied_types); | |
1025 | ||
1026 | obj->next = NULL; | |
1027 | obj->prev = NULL; | |
1028 | ||
1029 | obj = next; | |
1030 | } | |
1031 | ||
1032 | htab_delete (copied_types); | |
1033 | ||
1034 | do_cleanups (cleanup); | |
1035 | } | |
1036 | ||
1037 | static void | |
1038 | set_type (type_object *obj, struct type *type) | |
1039 | { | |
1040 | obj->type = type; | |
1041 | obj->prev = NULL; | |
1042 | if (type && TYPE_OBJFILE (type)) | |
1043 | { | |
1044 | struct objfile *objfile = TYPE_OBJFILE (type); | |
1045 | ||
1046 | obj->next = objfile_data (objfile, typy_objfile_data_key); | |
1047 | if (obj->next) | |
1048 | obj->next->prev = obj; | |
1049 | set_objfile_data (objfile, typy_objfile_data_key, obj); | |
1050 | } | |
1051 | else | |
1052 | obj->next = NULL; | |
1053 | } | |
1054 | ||
1055 | static void | |
1056 | typy_dealloc (PyObject *obj) | |
1057 | { | |
1058 | type_object *type = (type_object *) obj; | |
1059 | ||
1060 | if (type->prev) | |
1061 | type->prev->next = type->next; | |
1062 | else if (type->type && TYPE_OBJFILE (type->type)) | |
1063 | { | |
1064 | /* Must reset head of list. */ | |
1065 | struct objfile *objfile = TYPE_OBJFILE (type->type); | |
d59b6f6c | 1066 | |
2c74e833 TT |
1067 | if (objfile) |
1068 | set_objfile_data (objfile, typy_objfile_data_key, type->next); | |
1069 | } | |
1070 | if (type->next) | |
1071 | type->next->prev = type->prev; | |
1072 | ||
9a27f2c6 | 1073 | Py_TYPE (type)->tp_free (type); |
2c74e833 TT |
1074 | } |
1075 | ||
a73bb892 PK |
1076 | /* Return number of fields ("length" of the field dictionary). */ |
1077 | ||
1078 | static Py_ssize_t | |
1079 | typy_length (PyObject *self) | |
1080 | { | |
1081 | struct type *type = ((type_object *) self)->type; | |
1082 | ||
9cc10fd1 PK |
1083 | type = typy_get_composite (type); |
1084 | if (type == NULL) | |
1085 | return -1; | |
1086 | ||
a73bb892 PK |
1087 | return TYPE_NFIELDS (type); |
1088 | } | |
1089 | ||
9cc10fd1 | 1090 | /* Implements boolean evaluation of gdb.Type. Handle this like other |
256458bc | 1091 | Python objects that don't have a meaningful truth value -- all |
9cc10fd1 PK |
1092 | values are true. */ |
1093 | ||
1094 | static int | |
1095 | typy_nonzero (PyObject *self) | |
1096 | { | |
1097 | return 1; | |
1098 | } | |
1099 | ||
a73bb892 PK |
1100 | /* Return a gdb.Field object for the field named by the argument. */ |
1101 | ||
1102 | static PyObject * | |
1103 | typy_getitem (PyObject *self, PyObject *key) | |
1104 | { | |
1105 | struct type *type = ((type_object *) self)->type; | |
1106 | char *field; | |
1107 | int i; | |
76dce0be | 1108 | |
a73bb892 PK |
1109 | field = python_string_to_host_string (key); |
1110 | if (field == NULL) | |
1111 | return NULL; | |
1112 | ||
256458bc | 1113 | /* We want just fields of this type, not of base types, so instead of |
a73bb892 PK |
1114 | using lookup_struct_elt_type, portions of that function are |
1115 | copied here. */ | |
1116 | ||
9cc10fd1 PK |
1117 | type = typy_get_composite (type); |
1118 | if (type == NULL) | |
1119 | return NULL; | |
256458bc | 1120 | |
a73bb892 PK |
1121 | for (i = 0; i < TYPE_NFIELDS (type); i++) |
1122 | { | |
0d5cff50 | 1123 | const char *t_field_name = TYPE_FIELD_NAME (type, i); |
a73bb892 PK |
1124 | |
1125 | if (t_field_name && (strcmp_iw (t_field_name, field) == 0)) | |
1126 | { | |
1127 | return convert_field (type, i); | |
1128 | } | |
1129 | } | |
1130 | PyErr_SetObject (PyExc_KeyError, key); | |
1131 | return NULL; | |
1132 | } | |
1133 | ||
256458bc | 1134 | /* Implement the "get" method on the type object. This is the |
a73bb892 PK |
1135 | same as getitem if the key is present, but returns the supplied |
1136 | default value or None if the key is not found. */ | |
1137 | ||
1138 | static PyObject * | |
1139 | typy_get (PyObject *self, PyObject *args) | |
1140 | { | |
1141 | PyObject *key, *defval = Py_None, *result; | |
256458bc | 1142 | |
a73bb892 PK |
1143 | if (!PyArg_UnpackTuple (args, "get", 1, 2, &key, &defval)) |
1144 | return NULL; | |
256458bc | 1145 | |
a73bb892 PK |
1146 | result = typy_getitem (self, key); |
1147 | if (result != NULL) | |
1148 | return result; | |
256458bc | 1149 | |
a73bb892 PK |
1150 | /* typy_getitem returned error status. If the exception is |
1151 | KeyError, clear the exception status and return the defval | |
1152 | instead. Otherwise return the exception unchanged. */ | |
1153 | if (!PyErr_ExceptionMatches (PyExc_KeyError)) | |
1154 | return NULL; | |
256458bc | 1155 | |
a73bb892 PK |
1156 | PyErr_Clear (); |
1157 | Py_INCREF (defval); | |
1158 | return defval; | |
1159 | } | |
1160 | ||
1161 | /* Implement the "has_key" method on the type object. */ | |
1162 | ||
1163 | static PyObject * | |
1164 | typy_has_key (PyObject *self, PyObject *args) | |
1165 | { | |
1166 | struct type *type = ((type_object *) self)->type; | |
2ff6b080 | 1167 | const char *field; |
a73bb892 | 1168 | int i; |
76dce0be | 1169 | |
a73bb892 PK |
1170 | if (!PyArg_ParseTuple (args, "s", &field)) |
1171 | return NULL; | |
1172 | ||
256458bc | 1173 | /* We want just fields of this type, not of base types, so instead of |
a73bb892 PK |
1174 | using lookup_struct_elt_type, portions of that function are |
1175 | copied here. */ | |
1176 | ||
9cc10fd1 PK |
1177 | type = typy_get_composite (type); |
1178 | if (type == NULL) | |
1179 | return NULL; | |
a73bb892 PK |
1180 | |
1181 | for (i = 0; i < TYPE_NFIELDS (type); i++) | |
1182 | { | |
0d5cff50 | 1183 | const char *t_field_name = TYPE_FIELD_NAME (type, i); |
a73bb892 PK |
1184 | |
1185 | if (t_field_name && (strcmp_iw (t_field_name, field) == 0)) | |
1186 | Py_RETURN_TRUE; | |
1187 | } | |
1188 | Py_RETURN_FALSE; | |
1189 | } | |
1190 | ||
1191 | /* Make an iterator object to iterate over keys, values, or items. */ | |
1192 | ||
1193 | static PyObject * | |
1194 | typy_make_iter (PyObject *self, enum gdbpy_iter_kind kind) | |
1195 | { | |
1196 | typy_iterator_object *typy_iter_obj; | |
1197 | ||
9cc10fd1 PK |
1198 | /* Check that "self" is a structure or union type. */ |
1199 | if (typy_get_composite (((type_object *) self)->type) == NULL) | |
1200 | return NULL; | |
256458bc | 1201 | |
a73bb892 PK |
1202 | typy_iter_obj = PyObject_New (typy_iterator_object, |
1203 | &type_iterator_object_type); | |
1204 | if (typy_iter_obj == NULL) | |
1205 | return NULL; | |
1206 | ||
1207 | typy_iter_obj->field = 0; | |
1208 | typy_iter_obj->kind = kind; | |
1209 | Py_INCREF (self); | |
1210 | typy_iter_obj->source = (type_object *) self; | |
1211 | ||
1212 | return (PyObject *) typy_iter_obj; | |
1213 | } | |
1214 | ||
1215 | /* iteritems() method. */ | |
1216 | ||
1217 | static PyObject * | |
1218 | typy_iteritems (PyObject *self, PyObject *args) | |
1219 | { | |
1220 | return typy_make_iter (self, iter_items); | |
1221 | } | |
1222 | ||
1223 | /* iterkeys() method. */ | |
1224 | ||
1225 | static PyObject * | |
1226 | typy_iterkeys (PyObject *self, PyObject *args) | |
1227 | { | |
1228 | return typy_make_iter (self, iter_keys); | |
1229 | } | |
1230 | ||
1231 | /* Iterating over the class, same as iterkeys except for the function | |
1232 | signature. */ | |
1233 | ||
1234 | static PyObject * | |
1235 | typy_iter (PyObject *self) | |
1236 | { | |
1237 | return typy_make_iter (self, iter_keys); | |
1238 | } | |
1239 | ||
1240 | /* itervalues() method. */ | |
1241 | ||
1242 | static PyObject * | |
1243 | typy_itervalues (PyObject *self, PyObject *args) | |
1244 | { | |
1245 | return typy_make_iter (self, iter_values); | |
1246 | } | |
1247 | ||
1248 | /* Return a reference to the type iterator. */ | |
1249 | ||
1250 | static PyObject * | |
1251 | typy_iterator_iter (PyObject *self) | |
1252 | { | |
1253 | Py_INCREF (self); | |
1254 | return self; | |
1255 | } | |
1256 | ||
1257 | /* Return the next field in the iteration through the list of fields | |
1258 | of the type. */ | |
1259 | ||
1260 | static PyObject * | |
1261 | typy_iterator_iternext (PyObject *self) | |
1262 | { | |
1263 | typy_iterator_object *iter_obj = (typy_iterator_object *) self; | |
1264 | struct type *type = iter_obj->source->type; | |
a73bb892 | 1265 | PyObject *result; |
256458bc | 1266 | |
a73bb892 PK |
1267 | if (iter_obj->field < TYPE_NFIELDS (type)) |
1268 | { | |
1269 | result = make_fielditem (type, iter_obj->field, iter_obj->kind); | |
1270 | if (result != NULL) | |
1271 | iter_obj->field++; | |
1272 | return result; | |
1273 | } | |
1274 | ||
1275 | return NULL; | |
1276 | } | |
1277 | ||
1278 | static void | |
1279 | typy_iterator_dealloc (PyObject *obj) | |
1280 | { | |
1281 | typy_iterator_object *iter_obj = (typy_iterator_object *) obj; | |
1282 | ||
1283 | Py_DECREF (iter_obj->source); | |
1284 | } | |
1285 | ||
2c74e833 TT |
1286 | /* Create a new Type referring to TYPE. */ |
1287 | PyObject * | |
1288 | type_to_type_object (struct type *type) | |
1289 | { | |
1290 | type_object *type_obj; | |
1291 | ||
1292 | type_obj = PyObject_New (type_object, &type_object_type); | |
1293 | if (type_obj) | |
1294 | set_type (type_obj, type); | |
1295 | ||
1296 | return (PyObject *) type_obj; | |
1297 | } | |
1298 | ||
1299 | struct type * | |
1300 | type_object_to_type (PyObject *obj) | |
1301 | { | |
1302 | if (! PyObject_TypeCheck (obj, &type_object_type)) | |
1303 | return NULL; | |
1304 | return ((type_object *) obj)->type; | |
1305 | } | |
1306 | ||
1307 | \f | |
1308 | ||
1309 | /* Implementation of gdb.lookup_type. */ | |
1310 | PyObject * | |
1311 | gdbpy_lookup_type (PyObject *self, PyObject *args, PyObject *kw) | |
1312 | { | |
5107b149 | 1313 | static char *keywords[] = { "name", "block", NULL }; |
ddd49eee | 1314 | const char *type_name = NULL; |
2c74e833 | 1315 | struct type *type = NULL; |
5107b149 | 1316 | PyObject *block_obj = NULL; |
9df2fbc4 | 1317 | const struct block *block = NULL; |
2c74e833 | 1318 | |
5107b149 PM |
1319 | if (! PyArg_ParseTupleAndKeywords (args, kw, "s|O", keywords, |
1320 | &type_name, &block_obj)) | |
2c74e833 TT |
1321 | return NULL; |
1322 | ||
5107b149 PM |
1323 | if (block_obj) |
1324 | { | |
1325 | block = block_object_to_block (block_obj); | |
1326 | if (! block) | |
1327 | { | |
1328 | PyErr_SetString (PyExc_RuntimeError, | |
1329 | _("'block' argument must be a Block.")); | |
1330 | return NULL; | |
1331 | } | |
1332 | } | |
1333 | ||
1334 | type = typy_lookup_typename (type_name, block); | |
2c74e833 TT |
1335 | if (! type) |
1336 | return NULL; | |
1337 | ||
1338 | return (PyObject *) type_to_type_object (type); | |
1339 | } | |
1340 | ||
999633ed | 1341 | int |
2c74e833 TT |
1342 | gdbpy_initialize_types (void) |
1343 | { | |
1344 | int i; | |
1345 | ||
1346 | typy_objfile_data_key | |
c1bd65d0 | 1347 | = register_objfile_data_with_cleanup (save_objfile_types, NULL); |
2c74e833 TT |
1348 | |
1349 | if (PyType_Ready (&type_object_type) < 0) | |
999633ed | 1350 | return -1; |
2c74e833 | 1351 | if (PyType_Ready (&field_object_type) < 0) |
999633ed | 1352 | return -1; |
a73bb892 | 1353 | if (PyType_Ready (&type_iterator_object_type) < 0) |
999633ed | 1354 | return -1; |
2c74e833 TT |
1355 | |
1356 | for (i = 0; pyty_codes[i].name; ++i) | |
1357 | { | |
1358 | if (PyModule_AddIntConstant (gdb_module, | |
1359 | /* Cast needed for Python 2.4. */ | |
1360 | (char *) pyty_codes[i].name, | |
1361 | pyty_codes[i].code) < 0) | |
999633ed | 1362 | return -1; |
2c74e833 TT |
1363 | } |
1364 | ||
aa36459a TT |
1365 | if (gdb_pymodule_addobject (gdb_module, "Type", |
1366 | (PyObject *) &type_object_type) < 0) | |
999633ed | 1367 | return -1; |
2c74e833 | 1368 | |
aa36459a TT |
1369 | if (gdb_pymodule_addobject (gdb_module, "TypeIterator", |
1370 | (PyObject *) &type_iterator_object_type) < 0) | |
999633ed | 1371 | return -1; |
a73bb892 | 1372 | |
aa36459a TT |
1373 | return gdb_pymodule_addobject (gdb_module, "Field", |
1374 | (PyObject *) &field_object_type); | |
2c74e833 TT |
1375 | } |
1376 | ||
1377 | \f | |
1378 | ||
1379 | static PyGetSetDef type_object_getset[] = | |
1380 | { | |
1381 | { "code", typy_get_code, NULL, | |
1382 | "The code for this type.", NULL }, | |
1383 | { "sizeof", typy_get_sizeof, NULL, | |
1384 | "The size of this type, in bytes.", NULL }, | |
1385 | { "tag", typy_get_tag, NULL, | |
1386 | "The tag name for this type, or None.", NULL }, | |
1387 | { NULL } | |
1388 | }; | |
1389 | ||
1390 | static PyMethodDef type_object_methods[] = | |
1391 | { | |
702c2711 | 1392 | { "array", typy_array, METH_VARARGS, |
f28c316a DE |
1393 | "array ([LOW_BOUND,] HIGH_BOUND) -> Type\n\ |
1394 | Return a type which represents an array of objects of this type.\n\ | |
1395 | The bounds of the array are [LOW_BOUND, HIGH_BOUND] inclusive.\n\ | |
1396 | If LOW_BOUND is omitted, a value of zero is used." }, | |
a72c3253 DE |
1397 | { "vector", typy_vector, METH_VARARGS, |
1398 | "vector ([LOW_BOUND,] HIGH_BOUND) -> Type\n\ | |
1399 | Return a type which represents a vector of objects of this type.\n\ | |
1400 | The bounds of the array are [LOW_BOUND, HIGH_BOUND] inclusive.\n\ | |
1401 | If LOW_BOUND is omitted, a value of zero is used.\n\ | |
1402 | Vectors differ from arrays in that if the current language has C-style\n\ | |
1403 | arrays, vectors don't decay to a pointer to the first element.\n\ | |
1404 | They are first class values." }, | |
a73bb892 PK |
1405 | { "__contains__", typy_has_key, METH_VARARGS, |
1406 | "T.__contains__(k) -> True if T has a field named k, else False" }, | |
2c74e833 TT |
1407 | { "const", typy_const, METH_NOARGS, |
1408 | "const () -> Type\n\ | |
1409 | Return a const variant of this type." }, | |
1410 | { "fields", typy_fields, METH_NOARGS, | |
a73bb892 PK |
1411 | "fields () -> list\n\ |
1412 | Return a list holding all the fields of this type.\n\ | |
1413 | Each field is a gdb.Field object." }, | |
1414 | { "get", typy_get, METH_VARARGS, | |
1415 | "T.get(k[,default]) -> returns field named k in T, if it exists;\n\ | |
1416 | otherwise returns default, if supplied, or None if not." }, | |
1417 | { "has_key", typy_has_key, METH_VARARGS, | |
1418 | "T.has_key(k) -> True if T has a field named k, else False" }, | |
1419 | { "items", typy_items, METH_NOARGS, | |
1420 | "items () -> list\n\ | |
1421 | Return a list of (name, field) pairs of this type.\n\ | |
1422 | Each field is a gdb.Field object." }, | |
1423 | { "iteritems", typy_iteritems, METH_NOARGS, | |
1424 | "iteritems () -> an iterator over the (name, field)\n\ | |
1425 | pairs of this type. Each field is a gdb.Field object." }, | |
1426 | { "iterkeys", typy_iterkeys, METH_NOARGS, | |
1427 | "iterkeys () -> an iterator over the field names of this type." }, | |
1428 | { "itervalues", typy_itervalues, METH_NOARGS, | |
1429 | "itervalues () -> an iterator over the fields of this type.\n\ | |
1430 | Each field is a gdb.Field object." }, | |
1431 | { "keys", typy_field_names, METH_NOARGS, | |
1432 | "keys () -> list\n\ | |
1433 | Return a list holding all the fields names of this type." }, | |
2c74e833 TT |
1434 | { "pointer", typy_pointer, METH_NOARGS, |
1435 | "pointer () -> Type\n\ | |
1436 | Return a type of pointer to this type." }, | |
361ae042 PM |
1437 | { "range", typy_range, METH_NOARGS, |
1438 | "range () -> tuple\n\ | |
1439 | Return a tuple containing the lower and upper range for this type."}, | |
2c74e833 TT |
1440 | { "reference", typy_reference, METH_NOARGS, |
1441 | "reference () -> Type\n\ | |
1442 | Return a type of reference to this type." }, | |
1443 | { "strip_typedefs", typy_strip_typedefs, METH_NOARGS, | |
1444 | "strip_typedefs () -> Type\n\ | |
1445 | Return a type formed by stripping this type of all typedefs."}, | |
1446 | { "target", typy_target, METH_NOARGS, | |
1447 | "target () -> Type\n\ | |
1448 | Return the target type of this type." }, | |
1449 | { "template_argument", typy_template_argument, METH_VARARGS, | |
5107b149 | 1450 | "template_argument (arg, [block]) -> Type\n\ |
2c74e833 TT |
1451 | Return the type of a template argument." }, |
1452 | { "unqualified", typy_unqualified, METH_NOARGS, | |
1453 | "unqualified () -> Type\n\ | |
1454 | Return a variant of this type without const or volatile attributes." }, | |
9cc10fd1 | 1455 | { "values", typy_values, METH_NOARGS, |
a73bb892 PK |
1456 | "values () -> list\n\ |
1457 | Return a list holding all the fields of this type.\n\ | |
1458 | Each field is a gdb.Field object." }, | |
2c74e833 TT |
1459 | { "volatile", typy_volatile, METH_NOARGS, |
1460 | "volatile () -> Type\n\ | |
1461 | Return a volatile variant of this type" }, | |
1462 | { NULL } | |
1463 | }; | |
1464 | ||
9cc10fd1 PK |
1465 | static PyNumberMethods type_object_as_number = { |
1466 | NULL, /* nb_add */ | |
1467 | NULL, /* nb_subtract */ | |
1468 | NULL, /* nb_multiply */ | |
9a27f2c6 | 1469 | #ifndef IS_PY3K |
9cc10fd1 | 1470 | NULL, /* nb_divide */ |
9a27f2c6 | 1471 | #endif |
9cc10fd1 PK |
1472 | NULL, /* nb_remainder */ |
1473 | NULL, /* nb_divmod */ | |
1474 | NULL, /* nb_power */ | |
1475 | NULL, /* nb_negative */ | |
1476 | NULL, /* nb_positive */ | |
1477 | NULL, /* nb_absolute */ | |
1478 | typy_nonzero, /* nb_nonzero */ | |
1479 | NULL, /* nb_invert */ | |
1480 | NULL, /* nb_lshift */ | |
1481 | NULL, /* nb_rshift */ | |
1482 | NULL, /* nb_and */ | |
1483 | NULL, /* nb_xor */ | |
1484 | NULL, /* nb_or */ | |
9a27f2c6 PK |
1485 | #ifdef IS_PY3K |
1486 | NULL, /* nb_int */ | |
1487 | NULL, /* reserved */ | |
1488 | #else | |
9cc10fd1 PK |
1489 | NULL, /* nb_coerce */ |
1490 | NULL, /* nb_int */ | |
1491 | NULL, /* nb_long */ | |
9a27f2c6 | 1492 | #endif |
9cc10fd1 | 1493 | NULL, /* nb_float */ |
9a27f2c6 | 1494 | #ifndef IS_PY3K |
9cc10fd1 PK |
1495 | NULL, /* nb_oct */ |
1496 | NULL /* nb_hex */ | |
9a27f2c6 | 1497 | #endif |
9cc10fd1 PK |
1498 | }; |
1499 | ||
a73bb892 PK |
1500 | static PyMappingMethods typy_mapping = { |
1501 | typy_length, | |
1502 | typy_getitem, | |
1503 | NULL /* no "set" method */ | |
1504 | }; | |
1505 | ||
2c74e833 TT |
1506 | static PyTypeObject type_object_type = |
1507 | { | |
9a27f2c6 | 1508 | PyVarObject_HEAD_INIT (NULL, 0) |
2c74e833 TT |
1509 | "gdb.Type", /*tp_name*/ |
1510 | sizeof (type_object), /*tp_basicsize*/ | |
1511 | 0, /*tp_itemsize*/ | |
1512 | typy_dealloc, /*tp_dealloc*/ | |
1513 | 0, /*tp_print*/ | |
1514 | 0, /*tp_getattr*/ | |
1515 | 0, /*tp_setattr*/ | |
1516 | 0, /*tp_compare*/ | |
1517 | 0, /*tp_repr*/ | |
9cc10fd1 | 1518 | &type_object_as_number, /*tp_as_number*/ |
2c74e833 | 1519 | 0, /*tp_as_sequence*/ |
a73bb892 | 1520 | &typy_mapping, /*tp_as_mapping*/ |
2c74e833 TT |
1521 | 0, /*tp_hash */ |
1522 | 0, /*tp_call*/ | |
1523 | typy_str, /*tp_str*/ | |
1524 | 0, /*tp_getattro*/ | |
1525 | 0, /*tp_setattro*/ | |
1526 | 0, /*tp_as_buffer*/ | |
1527 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_ITER, /*tp_flags*/ | |
1528 | "GDB type object", /* tp_doc */ | |
1529 | 0, /* tp_traverse */ | |
1530 | 0, /* tp_clear */ | |
d839c8a4 | 1531 | typy_richcompare, /* tp_richcompare */ |
2c74e833 | 1532 | 0, /* tp_weaklistoffset */ |
a73bb892 | 1533 | typy_iter, /* tp_iter */ |
2c74e833 TT |
1534 | 0, /* tp_iternext */ |
1535 | type_object_methods, /* tp_methods */ | |
1536 | 0, /* tp_members */ | |
1537 | type_object_getset, /* tp_getset */ | |
1538 | 0, /* tp_base */ | |
1539 | 0, /* tp_dict */ | |
1540 | 0, /* tp_descr_get */ | |
1541 | 0, /* tp_descr_set */ | |
1542 | 0, /* tp_dictoffset */ | |
1543 | 0, /* tp_init */ | |
1544 | 0, /* tp_alloc */ | |
1545 | 0, /* tp_new */ | |
1546 | }; | |
1547 | ||
2e8265fd TT |
1548 | static PyGetSetDef field_object_getset[] = |
1549 | { | |
1550 | { "__dict__", gdb_py_generic_dict, NULL, | |
1551 | "The __dict__ for this field.", &field_object_type }, | |
1552 | { NULL } | |
1553 | }; | |
1554 | ||
2c74e833 TT |
1555 | static PyTypeObject field_object_type = |
1556 | { | |
9a27f2c6 | 1557 | PyVarObject_HEAD_INIT (NULL, 0) |
2c74e833 TT |
1558 | "gdb.Field", /*tp_name*/ |
1559 | sizeof (field_object), /*tp_basicsize*/ | |
1560 | 0, /*tp_itemsize*/ | |
1561 | field_dealloc, /*tp_dealloc*/ | |
1562 | 0, /*tp_print*/ | |
1563 | 0, /*tp_getattr*/ | |
1564 | 0, /*tp_setattr*/ | |
1565 | 0, /*tp_compare*/ | |
1566 | 0, /*tp_repr*/ | |
1567 | 0, /*tp_as_number*/ | |
1568 | 0, /*tp_as_sequence*/ | |
1569 | 0, /*tp_as_mapping*/ | |
1570 | 0, /*tp_hash */ | |
1571 | 0, /*tp_call*/ | |
1572 | 0, /*tp_str*/ | |
1573 | 0, /*tp_getattro*/ | |
1574 | 0, /*tp_setattro*/ | |
1575 | 0, /*tp_as_buffer*/ | |
1576 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_ITER, /*tp_flags*/ | |
1577 | "GDB field object", /* tp_doc */ | |
1578 | 0, /* tp_traverse */ | |
1579 | 0, /* tp_clear */ | |
1580 | 0, /* tp_richcompare */ | |
1581 | 0, /* tp_weaklistoffset */ | |
1582 | 0, /* tp_iter */ | |
1583 | 0, /* tp_iternext */ | |
1584 | 0, /* tp_methods */ | |
1585 | 0, /* tp_members */ | |
2e8265fd | 1586 | field_object_getset, /* tp_getset */ |
2c74e833 TT |
1587 | 0, /* tp_base */ |
1588 | 0, /* tp_dict */ | |
1589 | 0, /* tp_descr_get */ | |
1590 | 0, /* tp_descr_set */ | |
1591 | offsetof (field_object, dict), /* tp_dictoffset */ | |
1592 | 0, /* tp_init */ | |
1593 | 0, /* tp_alloc */ | |
1594 | 0, /* tp_new */ | |
1595 | }; | |
a73bb892 PK |
1596 | |
1597 | static PyTypeObject type_iterator_object_type = { | |
9a27f2c6 | 1598 | PyVarObject_HEAD_INIT (NULL, 0) |
a73bb892 PK |
1599 | "gdb.TypeIterator", /*tp_name*/ |
1600 | sizeof (typy_iterator_object), /*tp_basicsize*/ | |
1601 | 0, /*tp_itemsize*/ | |
1602 | typy_iterator_dealloc, /*tp_dealloc*/ | |
1603 | 0, /*tp_print*/ | |
1604 | 0, /*tp_getattr*/ | |
1605 | 0, /*tp_setattr*/ | |
1606 | 0, /*tp_compare*/ | |
1607 | 0, /*tp_repr*/ | |
1608 | 0, /*tp_as_number*/ | |
1609 | 0, /*tp_as_sequence*/ | |
1610 | 0, /*tp_as_mapping*/ | |
1611 | 0, /*tp_hash */ | |
1612 | 0, /*tp_call*/ | |
1613 | 0, /*tp_str*/ | |
1614 | 0, /*tp_getattro*/ | |
1615 | 0, /*tp_setattro*/ | |
1616 | 0, /*tp_as_buffer*/ | |
1617 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_ITER, /*tp_flags*/ | |
1618 | "GDB type iterator object", /*tp_doc */ | |
1619 | 0, /*tp_traverse */ | |
1620 | 0, /*tp_clear */ | |
1621 | 0, /*tp_richcompare */ | |
1622 | 0, /*tp_weaklistoffset */ | |
1623 | typy_iterator_iter, /*tp_iter */ | |
1624 | typy_iterator_iternext, /*tp_iternext */ | |
1625 | 0 /*tp_methods */ | |
1626 | }; |