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1 | /* Python interface to types. |
2 | ||
3 | Copyright (C) 2008, 2009 Free Software Foundation, Inc. | |
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" | |
29 | ||
30 | typedef struct pyty_type_object | |
31 | { | |
32 | PyObject_HEAD | |
33 | struct type *type; | |
34 | ||
35 | /* If a Type object is associated with an objfile, it is kept on a | |
36 | doubly-linked list, rooted in the objfile. This lets us copy the | |
37 | underlying struct type when the objfile is deleted. */ | |
38 | struct pyty_type_object *prev; | |
39 | struct pyty_type_object *next; | |
40 | } type_object; | |
41 | ||
42 | static PyTypeObject type_object_type; | |
43 | ||
44 | /* A Field object. */ | |
45 | typedef struct pyty_field_object | |
46 | { | |
47 | PyObject_HEAD | |
48 | ||
49 | /* Dictionary holding our attributes. */ | |
50 | PyObject *dict; | |
51 | } field_object; | |
52 | ||
53 | static PyTypeObject field_object_type; | |
54 | ||
55 | /* This is used to initialize various gdb.TYPE_ constants. */ | |
56 | struct pyty_code | |
57 | { | |
58 | /* The code. */ | |
59 | enum type_code code; | |
60 | /* The name. */ | |
61 | const char *name; | |
62 | }; | |
63 | ||
64 | #define ENTRY(X) { X, #X } | |
65 | ||
66 | static struct pyty_code pyty_codes[] = | |
67 | { | |
68 | ENTRY (TYPE_CODE_PTR), | |
69 | ENTRY (TYPE_CODE_ARRAY), | |
70 | ENTRY (TYPE_CODE_STRUCT), | |
71 | ENTRY (TYPE_CODE_UNION), | |
72 | ENTRY (TYPE_CODE_ENUM), | |
73 | ENTRY (TYPE_CODE_FLAGS), | |
74 | ENTRY (TYPE_CODE_FUNC), | |
75 | ENTRY (TYPE_CODE_INT), | |
76 | ENTRY (TYPE_CODE_FLT), | |
77 | ENTRY (TYPE_CODE_VOID), | |
78 | ENTRY (TYPE_CODE_SET), | |
79 | ENTRY (TYPE_CODE_RANGE), | |
80 | ENTRY (TYPE_CODE_STRING), | |
81 | ENTRY (TYPE_CODE_BITSTRING), | |
82 | ENTRY (TYPE_CODE_ERROR), | |
83 | ENTRY (TYPE_CODE_METHOD), | |
84 | ENTRY (TYPE_CODE_METHODPTR), | |
85 | ENTRY (TYPE_CODE_MEMBERPTR), | |
86 | ENTRY (TYPE_CODE_REF), | |
87 | ENTRY (TYPE_CODE_CHAR), | |
88 | ENTRY (TYPE_CODE_BOOL), | |
89 | ENTRY (TYPE_CODE_COMPLEX), | |
90 | ENTRY (TYPE_CODE_TYPEDEF), | |
91 | ENTRY (TYPE_CODE_NAMESPACE), | |
92 | ENTRY (TYPE_CODE_DECFLOAT), | |
93 | ENTRY (TYPE_CODE_INTERNAL_FUNCTION), | |
94 | { TYPE_CODE_UNDEF, NULL } | |
95 | }; | |
96 | ||
97 | \f | |
98 | ||
99 | static void | |
100 | field_dealloc (PyObject *obj) | |
101 | { | |
102 | field_object *f = (field_object *) obj; | |
103 | Py_XDECREF (f->dict); | |
104 | f->ob_type->tp_free (obj); | |
105 | } | |
106 | ||
107 | static PyObject * | |
108 | field_new (void) | |
109 | { | |
110 | field_object *result = PyObject_New (field_object, &field_object_type); | |
111 | if (result) | |
112 | { | |
113 | result->dict = PyDict_New (); | |
114 | if (!result->dict) | |
115 | { | |
116 | Py_DECREF (result); | |
117 | result = NULL; | |
118 | } | |
119 | } | |
120 | return (PyObject *) result; | |
121 | } | |
122 | ||
123 | \f | |
124 | ||
125 | /* Return the code for this type. */ | |
126 | static PyObject * | |
127 | typy_get_code (PyObject *self, void *closure) | |
128 | { | |
129 | struct type *type = ((type_object *) self)->type; | |
130 | return PyInt_FromLong (TYPE_CODE (type)); | |
131 | } | |
132 | ||
133 | /* Helper function for typy_fields which converts a single field to a | |
134 | dictionary. Returns NULL on error. */ | |
135 | static PyObject * | |
136 | convert_field (struct type *type, int field) | |
137 | { | |
138 | PyObject *result = field_new (); | |
139 | PyObject *arg; | |
140 | ||
141 | if (!result) | |
142 | return NULL; | |
143 | ||
144 | if (!field_is_static (&TYPE_FIELD (type, field))) | |
145 | { | |
146 | arg = PyLong_FromLong (TYPE_FIELD_BITPOS (type, field)); | |
147 | if (!arg) | |
148 | goto fail; | |
149 | ||
150 | if (PyObject_SetAttrString (result, "bitpos", arg) < 0) | |
151 | goto failarg; | |
152 | } | |
153 | ||
154 | if (TYPE_FIELD_NAME (type, field)) | |
155 | arg = PyString_FromString (TYPE_FIELD_NAME (type, field)); | |
156 | else | |
157 | { | |
158 | arg = Py_None; | |
159 | Py_INCREF (arg); | |
160 | } | |
161 | if (!arg) | |
162 | goto fail; | |
163 | if (PyObject_SetAttrString (result, "name", arg) < 0) | |
164 | goto failarg; | |
165 | ||
166 | arg = TYPE_FIELD_ARTIFICIAL (type, field) ? Py_True : Py_False; | |
167 | Py_INCREF (arg); | |
168 | if (PyObject_SetAttrString (result, "artificial", arg) < 0) | |
169 | goto failarg; | |
170 | ||
171 | arg = PyLong_FromLong (TYPE_FIELD_BITSIZE (type, field)); | |
172 | if (!arg) | |
173 | goto fail; | |
174 | if (PyObject_SetAttrString (result, "bitsize", arg) < 0) | |
175 | goto failarg; | |
176 | ||
177 | /* A field can have a NULL type in some situations. */ | |
178 | if (TYPE_FIELD_TYPE (type, field) == NULL) | |
179 | { | |
180 | arg = Py_None; | |
181 | Py_INCREF (arg); | |
182 | } | |
183 | else | |
184 | arg = type_to_type_object (TYPE_FIELD_TYPE (type, field)); | |
185 | if (!arg) | |
186 | goto fail; | |
187 | if (PyObject_SetAttrString (result, "type", arg) < 0) | |
188 | goto failarg; | |
189 | ||
190 | return result; | |
191 | ||
192 | failarg: | |
193 | Py_DECREF (arg); | |
194 | fail: | |
195 | Py_DECREF (result); | |
196 | return NULL; | |
197 | } | |
198 | ||
199 | /* Return a sequence of all fields. Each field is a dictionary with | |
200 | some pre-defined keys. */ | |
201 | static PyObject * | |
202 | typy_fields (PyObject *self, PyObject *args) | |
203 | { | |
204 | PyObject *result; | |
205 | int i; | |
206 | struct type *type = ((type_object *) self)->type; | |
207 | ||
208 | /* We would like to make a tuple here, make fields immutable, and | |
209 | then memoize the result (and perhaps make Field.type() lazy). | |
210 | However, that can lead to cycles. */ | |
211 | result = PyList_New (0); | |
212 | ||
213 | for (i = 0; i < TYPE_NFIELDS (type); ++i) | |
214 | { | |
215 | PyObject *dict = convert_field (type, i); | |
216 | if (!dict) | |
217 | { | |
218 | Py_DECREF (result); | |
219 | return NULL; | |
220 | } | |
221 | if (PyList_Append (result, dict)) | |
222 | { | |
223 | Py_DECREF (dict); | |
224 | Py_DECREF (result); | |
225 | return NULL; | |
226 | } | |
227 | } | |
228 | ||
229 | return result; | |
230 | } | |
231 | ||
232 | /* Return the type's tag, or None. */ | |
233 | static PyObject * | |
234 | typy_get_tag (PyObject *self, void *closure) | |
235 | { | |
236 | struct type *type = ((type_object *) self)->type; | |
237 | if (!TYPE_TAG_NAME (type)) | |
238 | Py_RETURN_NONE; | |
239 | return PyString_FromString (TYPE_TAG_NAME (type)); | |
240 | } | |
241 | ||
242 | /* Return the type, stripped of typedefs. */ | |
243 | static PyObject * | |
244 | typy_strip_typedefs (PyObject *self, PyObject *args) | |
245 | { | |
246 | struct type *type = ((type_object *) self)->type; | |
247 | ||
248 | return type_to_type_object (check_typedef (type)); | |
249 | } | |
250 | ||
251 | /* Return a Type object which represents a pointer to SELF. */ | |
252 | static PyObject * | |
253 | typy_pointer (PyObject *self, PyObject *args) | |
254 | { | |
255 | struct type *type = ((type_object *) self)->type; | |
256 | volatile struct gdb_exception except; | |
257 | ||
258 | TRY_CATCH (except, RETURN_MASK_ALL) | |
259 | { | |
260 | type = lookup_pointer_type (type); | |
261 | } | |
262 | GDB_PY_HANDLE_EXCEPTION (except); | |
263 | ||
264 | return type_to_type_object (type); | |
265 | } | |
266 | ||
267 | /* Return a Type object which represents a reference to SELF. */ | |
268 | static PyObject * | |
269 | typy_reference (PyObject *self, PyObject *args) | |
270 | { | |
271 | struct type *type = ((type_object *) self)->type; | |
272 | volatile struct gdb_exception except; | |
273 | ||
274 | TRY_CATCH (except, RETURN_MASK_ALL) | |
275 | { | |
276 | type = lookup_reference_type (type); | |
277 | } | |
278 | GDB_PY_HANDLE_EXCEPTION (except); | |
279 | ||
280 | return type_to_type_object (type); | |
281 | } | |
282 | ||
283 | /* Return a Type object which represents the target type of SELF. */ | |
284 | static PyObject * | |
285 | typy_target (PyObject *self, PyObject *args) | |
286 | { | |
287 | struct type *type = ((type_object *) self)->type; | |
288 | ||
289 | if (!TYPE_TARGET_TYPE (type)) | |
290 | { | |
291 | PyErr_SetString (PyExc_RuntimeError, "type does not have a target"); | |
292 | return NULL; | |
293 | } | |
294 | ||
295 | return type_to_type_object (TYPE_TARGET_TYPE (type)); | |
296 | } | |
297 | ||
298 | /* Return a const-qualified type variant. */ | |
299 | static PyObject * | |
300 | typy_const (PyObject *self, PyObject *args) | |
301 | { | |
302 | struct type *type = ((type_object *) self)->type; | |
303 | volatile struct gdb_exception except; | |
304 | ||
305 | TRY_CATCH (except, RETURN_MASK_ALL) | |
306 | { | |
307 | type = make_cv_type (1, 0, type, NULL); | |
308 | } | |
309 | GDB_PY_HANDLE_EXCEPTION (except); | |
310 | ||
311 | return type_to_type_object (type); | |
312 | } | |
313 | ||
314 | /* Return a volatile-qualified type variant. */ | |
315 | static PyObject * | |
316 | typy_volatile (PyObject *self, PyObject *args) | |
317 | { | |
318 | struct type *type = ((type_object *) self)->type; | |
319 | volatile struct gdb_exception except; | |
320 | ||
321 | TRY_CATCH (except, RETURN_MASK_ALL) | |
322 | { | |
323 | type = make_cv_type (0, 1, type, NULL); | |
324 | } | |
325 | GDB_PY_HANDLE_EXCEPTION (except); | |
326 | ||
327 | return type_to_type_object (type); | |
328 | } | |
329 | ||
330 | /* Return an unqualified type variant. */ | |
331 | static PyObject * | |
332 | typy_unqualified (PyObject *self, PyObject *args) | |
333 | { | |
334 | struct type *type = ((type_object *) self)->type; | |
335 | volatile struct gdb_exception except; | |
336 | ||
337 | TRY_CATCH (except, RETURN_MASK_ALL) | |
338 | { | |
339 | type = make_cv_type (0, 0, type, NULL); | |
340 | } | |
341 | GDB_PY_HANDLE_EXCEPTION (except); | |
342 | ||
343 | return type_to_type_object (type); | |
344 | } | |
345 | ||
346 | /* Return the size of the type represented by SELF, in bytes. */ | |
347 | static PyObject * | |
348 | typy_get_sizeof (PyObject *self, void *closure) | |
349 | { | |
350 | struct type *type = ((type_object *) self)->type; | |
351 | volatile struct gdb_exception except; | |
352 | ||
353 | TRY_CATCH (except, RETURN_MASK_ALL) | |
354 | { | |
355 | check_typedef (type); | |
356 | } | |
357 | /* Ignore exceptions. */ | |
358 | ||
359 | return PyLong_FromLong (TYPE_LENGTH (type)); | |
360 | } | |
361 | ||
362 | static struct type * | |
363 | typy_lookup_typename (char *type_name) | |
364 | { | |
365 | struct type *type = NULL; | |
366 | volatile struct gdb_exception except; | |
367 | TRY_CATCH (except, RETURN_MASK_ALL) | |
368 | { | |
369 | if (!strncmp (type_name, "struct ", 7)) | |
370 | type = lookup_struct (type_name + 7, NULL); | |
371 | else if (!strncmp (type_name, "union ", 6)) | |
372 | type = lookup_union (type_name + 6, NULL); | |
373 | else if (!strncmp (type_name, "enum ", 5)) | |
374 | type = lookup_enum (type_name + 5, NULL); | |
375 | else | |
376 | type = lookup_typename (type_name, NULL, 0); | |
377 | } | |
378 | if (except.reason < 0) | |
379 | { | |
380 | PyErr_Format (except.reason == RETURN_QUIT | |
381 | ? PyExc_KeyboardInterrupt : PyExc_RuntimeError, | |
382 | "%s", except.message); | |
383 | return NULL; | |
384 | } | |
385 | ||
386 | return type; | |
387 | } | |
388 | ||
389 | static struct type * | |
390 | typy_lookup_type (struct demangle_component *demangled) | |
391 | { | |
392 | struct type *type; | |
393 | char *type_name; | |
394 | enum demangle_component_type demangled_type; | |
395 | ||
396 | /* Save the type: typy_lookup_type() may (indirectly) overwrite | |
397 | memory pointed by demangled. */ | |
398 | demangled_type = demangled->type; | |
399 | ||
400 | if (demangled_type == DEMANGLE_COMPONENT_POINTER | |
401 | || demangled_type == DEMANGLE_COMPONENT_REFERENCE | |
402 | || demangled_type == DEMANGLE_COMPONENT_CONST | |
403 | || demangled_type == DEMANGLE_COMPONENT_VOLATILE) | |
404 | { | |
405 | type = typy_lookup_type (demangled->u.s_binary.left); | |
406 | if (! type) | |
407 | return NULL; | |
408 | ||
409 | switch (demangled_type) | |
410 | { | |
411 | case DEMANGLE_COMPONENT_REFERENCE: | |
412 | return lookup_reference_type (type); | |
413 | case DEMANGLE_COMPONENT_POINTER: | |
414 | return lookup_pointer_type (type); | |
415 | case DEMANGLE_COMPONENT_CONST: | |
416 | return make_cv_type (1, 0, type, NULL); | |
417 | case DEMANGLE_COMPONENT_VOLATILE: | |
418 | return make_cv_type (0, 1, type, NULL); | |
419 | } | |
420 | } | |
421 | ||
422 | type_name = cp_comp_to_string (demangled, 10); | |
423 | type = typy_lookup_typename (type_name); | |
424 | xfree (type_name); | |
425 | ||
426 | return type; | |
427 | } | |
428 | ||
429 | static PyObject * | |
430 | typy_template_argument (PyObject *self, PyObject *args) | |
431 | { | |
432 | int i, argno, n_pointers; | |
433 | struct type *type = ((type_object *) self)->type; | |
434 | struct demangle_component *demangled; | |
435 | const char *err; | |
436 | struct type *argtype; | |
437 | ||
438 | if (! PyArg_ParseTuple (args, "i", &argno)) | |
439 | return NULL; | |
440 | ||
441 | type = check_typedef (type); | |
442 | if (TYPE_CODE (type) == TYPE_CODE_REF) | |
443 | type = check_typedef (TYPE_TARGET_TYPE (type)); | |
444 | ||
445 | if (TYPE_NAME (type) == NULL) | |
446 | { | |
447 | PyErr_SetString (PyExc_RuntimeError, "null type name"); | |
448 | return NULL; | |
449 | } | |
450 | ||
451 | /* Note -- this is not thread-safe. */ | |
452 | demangled = cp_demangled_name_to_comp (TYPE_NAME (type), &err); | |
453 | if (! demangled) | |
454 | { | |
455 | PyErr_SetString (PyExc_RuntimeError, err); | |
456 | return NULL; | |
457 | } | |
458 | ||
459 | /* Strip off component names. */ | |
460 | while (demangled->type == DEMANGLE_COMPONENT_QUAL_NAME | |
461 | || demangled->type == DEMANGLE_COMPONENT_LOCAL_NAME) | |
462 | demangled = demangled->u.s_binary.right; | |
463 | ||
464 | if (demangled->type != DEMANGLE_COMPONENT_TEMPLATE) | |
465 | { | |
466 | PyErr_SetString (PyExc_RuntimeError, "type is not a template"); | |
467 | return NULL; | |
468 | } | |
469 | ||
470 | /* Skip from the template to the arguments. */ | |
471 | demangled = demangled->u.s_binary.right; | |
472 | ||
473 | for (i = 0; demangled && i < argno; ++i) | |
474 | demangled = demangled->u.s_binary.right; | |
475 | ||
476 | if (! demangled) | |
477 | { | |
478 | PyErr_Format (PyExc_RuntimeError, "no argument %d in template", | |
479 | argno); | |
480 | return NULL; | |
481 | } | |
482 | ||
483 | argtype = typy_lookup_type (demangled->u.s_binary.left); | |
484 | if (! argtype) | |
485 | return NULL; | |
486 | ||
487 | return type_to_type_object (argtype); | |
488 | } | |
489 | ||
490 | static PyObject * | |
491 | typy_str (PyObject *self) | |
492 | { | |
493 | volatile struct gdb_exception except; | |
494 | char *thetype = NULL; | |
495 | PyObject *result; | |
496 | ||
497 | TRY_CATCH (except, RETURN_MASK_ALL) | |
498 | { | |
499 | struct cleanup *old_chain; | |
500 | struct ui_file *stb; | |
501 | long length; | |
502 | ||
503 | stb = mem_fileopen (); | |
504 | old_chain = make_cleanup_ui_file_delete (stb); | |
505 | ||
506 | type_print (type_object_to_type (self), "", stb, -1); | |
507 | ||
508 | thetype = ui_file_xstrdup (stb, &length); | |
509 | do_cleanups (old_chain); | |
510 | } | |
511 | if (except.reason < 0) | |
512 | { | |
513 | xfree (thetype); | |
514 | GDB_PY_HANDLE_EXCEPTION (except); | |
515 | } | |
516 | ||
517 | result = PyUnicode_Decode (thetype, strlen (thetype), host_charset (), NULL); | |
518 | xfree (thetype); | |
519 | ||
520 | return result; | |
521 | } | |
522 | ||
523 | \f | |
524 | ||
525 | static const struct objfile_data *typy_objfile_data_key; | |
526 | ||
527 | static void | |
528 | clean_up_objfile_types (struct objfile *objfile, void *datum) | |
529 | { | |
530 | type_object *obj = datum; | |
531 | htab_t copied_types; | |
532 | struct cleanup *cleanup; | |
533 | PyGILState_STATE state; | |
534 | ||
535 | /* This prevents another thread from freeing the objects we're | |
536 | operating on. */ | |
537 | state = PyGILState_Ensure (); | |
538 | cleanup = make_cleanup_py_restore_gil (&state); | |
539 | ||
540 | copied_types = create_copied_types_hash (objfile); | |
541 | ||
542 | while (obj) | |
543 | { | |
544 | type_object *next = obj->next; | |
545 | ||
546 | htab_empty (copied_types); | |
547 | ||
548 | obj->type = copy_type_recursive (objfile, obj->type, copied_types); | |
549 | ||
550 | obj->next = NULL; | |
551 | obj->prev = NULL; | |
552 | ||
553 | obj = next; | |
554 | } | |
555 | ||
556 | htab_delete (copied_types); | |
557 | ||
558 | do_cleanups (cleanup); | |
559 | } | |
560 | ||
561 | static void | |
562 | set_type (type_object *obj, struct type *type) | |
563 | { | |
564 | obj->type = type; | |
565 | obj->prev = NULL; | |
566 | if (type && TYPE_OBJFILE (type)) | |
567 | { | |
568 | struct objfile *objfile = TYPE_OBJFILE (type); | |
569 | ||
570 | obj->next = objfile_data (objfile, typy_objfile_data_key); | |
571 | if (obj->next) | |
572 | obj->next->prev = obj; | |
573 | set_objfile_data (objfile, typy_objfile_data_key, obj); | |
574 | } | |
575 | else | |
576 | obj->next = NULL; | |
577 | } | |
578 | ||
579 | static void | |
580 | typy_dealloc (PyObject *obj) | |
581 | { | |
582 | type_object *type = (type_object *) obj; | |
583 | ||
584 | if (type->prev) | |
585 | type->prev->next = type->next; | |
586 | else if (type->type && TYPE_OBJFILE (type->type)) | |
587 | { | |
588 | /* Must reset head of list. */ | |
589 | struct objfile *objfile = TYPE_OBJFILE (type->type); | |
590 | if (objfile) | |
591 | set_objfile_data (objfile, typy_objfile_data_key, type->next); | |
592 | } | |
593 | if (type->next) | |
594 | type->next->prev = type->prev; | |
595 | ||
596 | type->ob_type->tp_free (type); | |
597 | } | |
598 | ||
599 | /* Create a new Type referring to TYPE. */ | |
600 | PyObject * | |
601 | type_to_type_object (struct type *type) | |
602 | { | |
603 | type_object *type_obj; | |
604 | ||
605 | type_obj = PyObject_New (type_object, &type_object_type); | |
606 | if (type_obj) | |
607 | set_type (type_obj, type); | |
608 | ||
609 | return (PyObject *) type_obj; | |
610 | } | |
611 | ||
612 | struct type * | |
613 | type_object_to_type (PyObject *obj) | |
614 | { | |
615 | if (! PyObject_TypeCheck (obj, &type_object_type)) | |
616 | return NULL; | |
617 | return ((type_object *) obj)->type; | |
618 | } | |
619 | ||
620 | \f | |
621 | ||
622 | /* Implementation of gdb.lookup_type. */ | |
623 | PyObject * | |
624 | gdbpy_lookup_type (PyObject *self, PyObject *args, PyObject *kw) | |
625 | { | |
626 | static char *keywords[] = { "name", NULL }; | |
627 | char *type_name = NULL; | |
628 | struct type *type = NULL; | |
629 | ||
630 | if (! PyArg_ParseTupleAndKeywords (args, kw, "s", keywords, &type_name)) | |
631 | return NULL; | |
632 | ||
633 | type = typy_lookup_typename (type_name); | |
634 | if (! type) | |
635 | return NULL; | |
636 | ||
637 | return (PyObject *) type_to_type_object (type); | |
638 | } | |
639 | ||
640 | void | |
641 | gdbpy_initialize_types (void) | |
642 | { | |
643 | int i; | |
644 | ||
645 | typy_objfile_data_key | |
646 | = register_objfile_data_with_cleanup (clean_up_objfile_types); | |
647 | ||
648 | if (PyType_Ready (&type_object_type) < 0) | |
649 | return; | |
650 | if (PyType_Ready (&field_object_type) < 0) | |
651 | return; | |
652 | ||
653 | for (i = 0; pyty_codes[i].name; ++i) | |
654 | { | |
655 | if (PyModule_AddIntConstant (gdb_module, | |
656 | /* Cast needed for Python 2.4. */ | |
657 | (char *) pyty_codes[i].name, | |
658 | pyty_codes[i].code) < 0) | |
659 | return; | |
660 | } | |
661 | ||
662 | Py_INCREF (&type_object_type); | |
663 | PyModule_AddObject (gdb_module, "Type", (PyObject *) &type_object_type); | |
664 | ||
665 | Py_INCREF (&field_object_type); | |
666 | PyModule_AddObject (gdb_module, "Field", (PyObject *) &field_object_type); | |
667 | } | |
668 | ||
669 | \f | |
670 | ||
671 | static PyGetSetDef type_object_getset[] = | |
672 | { | |
673 | { "code", typy_get_code, NULL, | |
674 | "The code for this type.", NULL }, | |
675 | { "sizeof", typy_get_sizeof, NULL, | |
676 | "The size of this type, in bytes.", NULL }, | |
677 | { "tag", typy_get_tag, NULL, | |
678 | "The tag name for this type, or None.", NULL }, | |
679 | { NULL } | |
680 | }; | |
681 | ||
682 | static PyMethodDef type_object_methods[] = | |
683 | { | |
684 | { "const", typy_const, METH_NOARGS, | |
685 | "const () -> Type\n\ | |
686 | Return a const variant of this type." }, | |
687 | { "fields", typy_fields, METH_NOARGS, | |
688 | "field () -> list\n\ | |
689 | Return a sequence holding all the fields of this type.\n\ | |
690 | Each field is a dictionary." }, | |
691 | { "pointer", typy_pointer, METH_NOARGS, | |
692 | "pointer () -> Type\n\ | |
693 | Return a type of pointer to this type." }, | |
694 | { "reference", typy_reference, METH_NOARGS, | |
695 | "reference () -> Type\n\ | |
696 | Return a type of reference to this type." }, | |
697 | { "strip_typedefs", typy_strip_typedefs, METH_NOARGS, | |
698 | "strip_typedefs () -> Type\n\ | |
699 | Return a type formed by stripping this type of all typedefs."}, | |
700 | { "target", typy_target, METH_NOARGS, | |
701 | "target () -> Type\n\ | |
702 | Return the target type of this type." }, | |
703 | { "template_argument", typy_template_argument, METH_VARARGS, | |
704 | "template_argument (arg) -> Type\n\ | |
705 | Return the type of a template argument." }, | |
706 | { "unqualified", typy_unqualified, METH_NOARGS, | |
707 | "unqualified () -> Type\n\ | |
708 | Return a variant of this type without const or volatile attributes." }, | |
709 | { "volatile", typy_volatile, METH_NOARGS, | |
710 | "volatile () -> Type\n\ | |
711 | Return a volatile variant of this type" }, | |
712 | { NULL } | |
713 | }; | |
714 | ||
715 | static PyTypeObject type_object_type = | |
716 | { | |
717 | PyObject_HEAD_INIT (NULL) | |
718 | 0, /*ob_size*/ | |
719 | "gdb.Type", /*tp_name*/ | |
720 | sizeof (type_object), /*tp_basicsize*/ | |
721 | 0, /*tp_itemsize*/ | |
722 | typy_dealloc, /*tp_dealloc*/ | |
723 | 0, /*tp_print*/ | |
724 | 0, /*tp_getattr*/ | |
725 | 0, /*tp_setattr*/ | |
726 | 0, /*tp_compare*/ | |
727 | 0, /*tp_repr*/ | |
728 | 0, /*tp_as_number*/ | |
729 | 0, /*tp_as_sequence*/ | |
730 | 0, /*tp_as_mapping*/ | |
731 | 0, /*tp_hash */ | |
732 | 0, /*tp_call*/ | |
733 | typy_str, /*tp_str*/ | |
734 | 0, /*tp_getattro*/ | |
735 | 0, /*tp_setattro*/ | |
736 | 0, /*tp_as_buffer*/ | |
737 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_ITER, /*tp_flags*/ | |
738 | "GDB type object", /* tp_doc */ | |
739 | 0, /* tp_traverse */ | |
740 | 0, /* tp_clear */ | |
741 | 0, /* tp_richcompare */ | |
742 | 0, /* tp_weaklistoffset */ | |
743 | 0, /* tp_iter */ | |
744 | 0, /* tp_iternext */ | |
745 | type_object_methods, /* tp_methods */ | |
746 | 0, /* tp_members */ | |
747 | type_object_getset, /* tp_getset */ | |
748 | 0, /* tp_base */ | |
749 | 0, /* tp_dict */ | |
750 | 0, /* tp_descr_get */ | |
751 | 0, /* tp_descr_set */ | |
752 | 0, /* tp_dictoffset */ | |
753 | 0, /* tp_init */ | |
754 | 0, /* tp_alloc */ | |
755 | 0, /* tp_new */ | |
756 | }; | |
757 | ||
758 | static PyTypeObject field_object_type = | |
759 | { | |
760 | PyObject_HEAD_INIT (NULL) | |
761 | 0, /*ob_size*/ | |
762 | "gdb.Field", /*tp_name*/ | |
763 | sizeof (field_object), /*tp_basicsize*/ | |
764 | 0, /*tp_itemsize*/ | |
765 | field_dealloc, /*tp_dealloc*/ | |
766 | 0, /*tp_print*/ | |
767 | 0, /*tp_getattr*/ | |
768 | 0, /*tp_setattr*/ | |
769 | 0, /*tp_compare*/ | |
770 | 0, /*tp_repr*/ | |
771 | 0, /*tp_as_number*/ | |
772 | 0, /*tp_as_sequence*/ | |
773 | 0, /*tp_as_mapping*/ | |
774 | 0, /*tp_hash */ | |
775 | 0, /*tp_call*/ | |
776 | 0, /*tp_str*/ | |
777 | 0, /*tp_getattro*/ | |
778 | 0, /*tp_setattro*/ | |
779 | 0, /*tp_as_buffer*/ | |
780 | Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_ITER, /*tp_flags*/ | |
781 | "GDB field object", /* tp_doc */ | |
782 | 0, /* tp_traverse */ | |
783 | 0, /* tp_clear */ | |
784 | 0, /* tp_richcompare */ | |
785 | 0, /* tp_weaklistoffset */ | |
786 | 0, /* tp_iter */ | |
787 | 0, /* tp_iternext */ | |
788 | 0, /* tp_methods */ | |
789 | 0, /* tp_members */ | |
790 | 0, /* tp_getset */ | |
791 | 0, /* tp_base */ | |
792 | 0, /* tp_dict */ | |
793 | 0, /* tp_descr_get */ | |
794 | 0, /* tp_descr_set */ | |
795 | offsetof (field_object, dict), /* tp_dictoffset */ | |
796 | 0, /* tp_init */ | |
797 | 0, /* tp_alloc */ | |
798 | 0, /* tp_new */ | |
799 | }; |