Fix: Missing postfix_expression DOT keywords in CTF grammar
[babeltrace.git] / formats / ctf / metadata / ctf-parser.y
1 %{
2 /*
3 * ctf-parser.y
4 *
5 * Common Trace Format Metadata Grammar.
6 *
7 * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a copy
10 * of this software and associated documentation files (the "Software"), to deal
11 * in the Software without restriction, including without limitation the rights
12 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 * copies of the Software, and to permit persons to whom the Software is
14 * furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
25 * SOFTWARE.
26 */
27
28 #include <stdio.h>
29 #include <ctype.h>
30 #include <unistd.h>
31 #include <string.h>
32 #include <stdlib.h>
33 #include <assert.h>
34 #include <glib.h>
35 #include <errno.h>
36 #include <inttypes.h>
37 #include <babeltrace/list.h>
38 #include <babeltrace/babeltrace-internal.h>
39 #include "ctf-scanner.h"
40 #include "ctf-parser.h"
41 #include "ctf-ast.h"
42 #include "objstack.h"
43
44 BT_HIDDEN
45 int yydebug;
46
47 /* Join two lists, put "add" at the end of "head". */
48 static inline void
49 _bt_list_splice_tail (struct bt_list_head *add, struct bt_list_head *head)
50 {
51 /* Do nothing if the list which gets added is empty. */
52 if (add != add->next) {
53 add->next->prev = head->prev;
54 add->prev->next = head;
55 head->prev->next = add->next;
56 head->prev = add->prev;
57 }
58 }
59
60 BT_HIDDEN
61 int yyparse(struct ctf_scanner *scanner, yyscan_t yyscanner);
62 BT_HIDDEN
63 int yylex(union YYSTYPE *yyval, yyscan_t yyscanner);
64 BT_HIDDEN
65 int yylex_init_extra(struct ctf_scanner *scanner, yyscan_t * ptr_yy_globals);
66 BT_HIDDEN
67 int yylex_destroy(yyscan_t yyscanner);
68 BT_HIDDEN
69 void yyrestart(FILE * in_str, yyscan_t yyscanner);
70 BT_HIDDEN
71 int yyget_lineno(yyscan_t yyscanner);
72 BT_HIDDEN
73 char *yyget_text(yyscan_t yyscanner);
74
75 static const char *node_type_to_str[] = {
76 #define ENTRY(S) [S] = #S,
77 FOREACH_CTF_NODES(ENTRY)
78 #undef ENTRY
79 };
80
81 /*
82 * Static node for out of memory errors. Only "type" is used. lineno is
83 * always left at 0. The rest of the node content can be overwritten,
84 * but is never used.
85 */
86 static struct ctf_node error_node = {
87 .type = NODE_ERROR,
88 };
89
90 BT_HIDDEN
91 const char *node_type(struct ctf_node *node)
92 {
93 if (node->type < NR_NODE_TYPES)
94 return node_type_to_str[node->type];
95 else
96 return NULL;
97 }
98
99 void setstring(struct ctf_scanner *scanner, YYSTYPE *lvalp, const char *src)
100 {
101 lvalp->s = objstack_alloc(scanner->objstack, strlen(src) + 1);
102 strcpy(lvalp->s, src);
103 }
104
105 static
106 int str_check(size_t str_len, size_t offset, size_t len)
107 {
108 /* check overflow */
109 if (offset + len < offset)
110 return -1;
111 if (offset + len > str_len)
112 return -1;
113 return 0;
114 }
115
116 static
117 int bt_isodigit(int c)
118 {
119 switch (c) {
120 case '0':
121 case '1':
122 case '2':
123 case '3':
124 case '4':
125 case '5':
126 case '6':
127 case '7':
128 return 1;
129 default:
130 return 0;
131 }
132 }
133
134 static
135 int parse_base_sequence(const char *src, size_t len, size_t pos,
136 char *buffer, size_t *buf_len, int base)
137 {
138 const size_t max_char = 3;
139 int nr_char = 0;
140
141 while (!str_check(len, pos, 1) && nr_char < max_char) {
142 char c = src[pos++];
143
144 if (base == 8) {
145 if (bt_isodigit(c))
146 buffer[nr_char++] = c;
147 else
148 break;
149 } else if (base == 16) {
150 if (isxdigit(c))
151 buffer[nr_char++] = c;
152 else
153 break;
154
155 } else {
156 /* Unsupported base */
157 return -1;
158 }
159 }
160 assert(nr_char > 0);
161 buffer[nr_char] = '\0';
162 *buf_len = nr_char;
163 return 0;
164 }
165
166 static
167 int import_basic_string(struct ctf_scanner *scanner, YYSTYPE *lvalp,
168 size_t len, const char *src, char delim)
169 {
170 size_t pos = 0, dpos = 0;
171
172 if (str_check(len, pos, 1))
173 return -1;
174 if (src[pos++] != delim)
175 return -1;
176
177 while (src[pos] != delim) {
178 char c;
179
180 if (str_check(len, pos, 1))
181 return -1;
182 c = src[pos++];
183 if (c == '\\') {
184 if (str_check(len, pos, 1))
185 return -1;
186 c = src[pos++];
187
188 switch (c) {
189 case 'a':
190 c = '\a';
191 break;
192 case 'b':
193 c = '\b';
194 break;
195 case 'f':
196 c = '\f';
197 break;
198 case 'n':
199 c = '\n';
200 break;
201 case 'r':
202 c = '\r';
203 break;
204 case 't':
205 c = '\t';
206 break;
207 case 'v':
208 c = '\v';
209 break;
210 case '\\':
211 c = '\\';
212 break;
213 case '\'':
214 c = '\'';
215 break;
216 case '\"':
217 c = '\"';
218 break;
219 case '?':
220 c = '?';
221 break;
222 case '0':
223 case '1':
224 case '2':
225 case '3':
226 case '4':
227 case '5':
228 case '6':
229 case '7':
230 {
231 char oct_buffer[4];
232 size_t oct_len;
233
234 if (parse_base_sequence(src, len, pos - 1,
235 oct_buffer, &oct_len, 8))
236 return -1;
237 c = strtoul(&oct_buffer[0], NULL, 8);
238 pos += oct_len - 1;
239 break;
240 }
241 case 'x':
242 {
243 char hex_buffer[4];
244 size_t hex_len;
245
246 if (parse_base_sequence(src, len, pos,
247 hex_buffer, &hex_len, 16))
248 return -1;
249 c = strtoul(&hex_buffer[0], NULL, 16);
250 pos += hex_len;
251 break;
252 }
253 default:
254 return -1;
255 }
256 }
257 if (str_check(len, dpos, 1))
258 return -1;
259 lvalp->s[dpos++] = c;
260 }
261
262 if (str_check(len, dpos, 1))
263 return -1;
264 lvalp->s[dpos++] = '\0';
265
266 if (str_check(len, pos, 1))
267 return -1;
268 if (src[pos++] != delim)
269 return -1;
270
271 if (str_check(len, pos, 1))
272 return -1;
273 if (src[pos] != '\0')
274 return -1;
275 return 0;
276 }
277
278 int import_string(struct ctf_scanner *scanner, YYSTYPE *lvalp,
279 const char *src, char delim)
280 {
281 size_t len;
282
283 len = strlen(src) + 1;
284 lvalp->s = objstack_alloc(scanner->objstack, len);
285 if (src[0] == 'L') {
286 // TODO: import wide string
287 printfl_error(yyget_lineno(scanner),
288 "Wide string not supported yet.");
289 return -1;
290 } else {
291 return import_basic_string(scanner, lvalp, len, src, delim);
292 }
293 }
294
295 static void init_scope(struct ctf_scanner_scope *scope,
296 struct ctf_scanner_scope *parent)
297 {
298 scope->parent = parent;
299 scope->types = g_hash_table_new_full(g_str_hash, g_str_equal,
300 NULL, NULL);
301 }
302
303 static void finalize_scope(struct ctf_scanner_scope *scope)
304 {
305 g_hash_table_destroy(scope->types);
306 }
307
308 static void push_scope(struct ctf_scanner *scanner)
309 {
310 struct ctf_scanner_scope *ns;
311
312 printf_debug("push scope\n");
313 ns = malloc(sizeof(struct ctf_scanner_scope));
314 init_scope(ns, scanner->cs);
315 scanner->cs = ns;
316 }
317
318 static void pop_scope(struct ctf_scanner *scanner)
319 {
320 struct ctf_scanner_scope *os;
321
322 printf_debug("pop scope\n");
323 os = scanner->cs;
324 scanner->cs = os->parent;
325 finalize_scope(os);
326 free(os);
327 }
328
329 static int lookup_type(struct ctf_scanner_scope *s, const char *id)
330 {
331 int ret;
332
333 ret = (int) (long) g_hash_table_lookup(s->types, id);
334 printf_debug("lookup %p %s %d\n", s, id, ret);
335 return ret;
336 }
337
338 BT_HIDDEN
339 int is_type(struct ctf_scanner *scanner, const char *id)
340 {
341 struct ctf_scanner_scope *it;
342 int ret = 0;
343
344 for (it = scanner->cs; it != NULL; it = it->parent) {
345 if (lookup_type(it, id)) {
346 ret = 1;
347 break;
348 }
349 }
350 printf_debug("is type %s %d\n", id, ret);
351 return ret;
352 }
353
354 static void add_type(struct ctf_scanner *scanner, char *id)
355 {
356 printf_debug("add type %s\n", id);
357 if (lookup_type(scanner->cs, id))
358 return;
359 g_hash_table_insert(scanner->cs->types, id, id);
360 }
361
362 static struct ctf_node *make_node(struct ctf_scanner *scanner,
363 enum node_type type)
364 {
365 struct ctf_node *node;
366
367 node = objstack_alloc(scanner->objstack, sizeof(*node));
368 if (!node) {
369 printfl_fatal(yyget_lineno(scanner->scanner), "out of memory");
370 return &error_node;
371 }
372 node->type = type;
373 node->lineno = yyget_lineno(scanner->scanner);
374 BT_INIT_LIST_HEAD(&node->tmp_head);
375 bt_list_add(&node->siblings, &node->tmp_head);
376
377 switch (type) {
378 case NODE_ROOT:
379 node->type = NODE_ERROR;
380 printfn_fatal(node, "trying to create root node");
381 break;
382
383 case NODE_EVENT:
384 BT_INIT_LIST_HEAD(&node->u.event.declaration_list);
385 break;
386 case NODE_STREAM:
387 BT_INIT_LIST_HEAD(&node->u.stream.declaration_list);
388 break;
389 case NODE_ENV:
390 BT_INIT_LIST_HEAD(&node->u.env.declaration_list);
391 break;
392 case NODE_TRACE:
393 BT_INIT_LIST_HEAD(&node->u.trace.declaration_list);
394 break;
395 case NODE_CLOCK:
396 BT_INIT_LIST_HEAD(&node->u.clock.declaration_list);
397 break;
398 case NODE_CALLSITE:
399 BT_INIT_LIST_HEAD(&node->u.callsite.declaration_list);
400 break;
401
402 case NODE_CTF_EXPRESSION:
403 BT_INIT_LIST_HEAD(&node->u.ctf_expression.left);
404 BT_INIT_LIST_HEAD(&node->u.ctf_expression.right);
405 break;
406 case NODE_UNARY_EXPRESSION:
407 break;
408
409 case NODE_TYPEDEF:
410 BT_INIT_LIST_HEAD(&node->u._typedef.type_declarators);
411 break;
412 case NODE_TYPEALIAS_TARGET:
413 BT_INIT_LIST_HEAD(&node->u.typealias_target.type_declarators);
414 break;
415 case NODE_TYPEALIAS_ALIAS:
416 BT_INIT_LIST_HEAD(&node->u.typealias_alias.type_declarators);
417 break;
418 case NODE_TYPEALIAS:
419 break;
420
421 case NODE_TYPE_SPECIFIER:
422 break;
423 case NODE_TYPE_SPECIFIER_LIST:
424 BT_INIT_LIST_HEAD(&node->u.type_specifier_list.head);
425 break;
426 case NODE_POINTER:
427 break;
428 case NODE_TYPE_DECLARATOR:
429 BT_INIT_LIST_HEAD(&node->u.type_declarator.pointers);
430 break;
431
432 case NODE_FLOATING_POINT:
433 BT_INIT_LIST_HEAD(&node->u.floating_point.expressions);
434 break;
435 case NODE_INTEGER:
436 BT_INIT_LIST_HEAD(&node->u.integer.expressions);
437 break;
438 case NODE_STRING:
439 BT_INIT_LIST_HEAD(&node->u.string.expressions);
440 break;
441 case NODE_ENUMERATOR:
442 BT_INIT_LIST_HEAD(&node->u.enumerator.values);
443 break;
444 case NODE_ENUM:
445 BT_INIT_LIST_HEAD(&node->u._enum.enumerator_list);
446 break;
447 case NODE_STRUCT_OR_VARIANT_DECLARATION:
448 BT_INIT_LIST_HEAD(&node->u.struct_or_variant_declaration.type_declarators);
449 break;
450 case NODE_VARIANT:
451 BT_INIT_LIST_HEAD(&node->u.variant.declaration_list);
452 break;
453 case NODE_STRUCT:
454 BT_INIT_LIST_HEAD(&node->u._struct.declaration_list);
455 BT_INIT_LIST_HEAD(&node->u._struct.min_align);
456 break;
457
458 case NODE_UNKNOWN:
459 default:
460 node->type = NODE_ERROR;
461 printfn_fatal(node, "unknown node type '%d'", (int) type);
462 break;
463 }
464
465 return node;
466 }
467
468 static int reparent_ctf_expression(struct ctf_node *node,
469 struct ctf_node *parent)
470 {
471 switch (parent->type) {
472 case NODE_EVENT:
473 _bt_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
474 break;
475 case NODE_STREAM:
476 _bt_list_splice_tail(&node->tmp_head, &parent->u.stream.declaration_list);
477 break;
478 case NODE_ENV:
479 _bt_list_splice_tail(&node->tmp_head, &parent->u.env.declaration_list);
480 break;
481 case NODE_TRACE:
482 _bt_list_splice_tail(&node->tmp_head, &parent->u.trace.declaration_list);
483 break;
484 case NODE_CLOCK:
485 _bt_list_splice_tail(&node->tmp_head, &parent->u.clock.declaration_list);
486 break;
487 case NODE_CALLSITE:
488 _bt_list_splice_tail(&node->tmp_head, &parent->u.callsite.declaration_list);
489 break;
490 case NODE_FLOATING_POINT:
491 _bt_list_splice_tail(&node->tmp_head, &parent->u.floating_point.expressions);
492 break;
493 case NODE_INTEGER:
494 _bt_list_splice_tail(&node->tmp_head, &parent->u.integer.expressions);
495 break;
496 case NODE_STRING:
497 _bt_list_splice_tail(&node->tmp_head, &parent->u.string.expressions);
498 break;
499
500 case NODE_ROOT:
501 case NODE_CTF_EXPRESSION:
502 case NODE_TYPEDEF:
503 case NODE_TYPEALIAS_TARGET:
504 case NODE_TYPEALIAS_ALIAS:
505 case NODE_TYPEALIAS:
506 case NODE_TYPE_SPECIFIER:
507 case NODE_TYPE_SPECIFIER_LIST:
508 case NODE_POINTER:
509 case NODE_TYPE_DECLARATOR:
510 case NODE_ENUMERATOR:
511 case NODE_ENUM:
512 case NODE_STRUCT_OR_VARIANT_DECLARATION:
513 case NODE_VARIANT:
514 case NODE_STRUCT:
515 case NODE_UNARY_EXPRESSION:
516 return -EPERM;
517
518 case NODE_UNKNOWN:
519 default:
520 printfn_fatal(node, "unknown node type '%d'", (int) parent->type);
521 return -EINVAL;
522 }
523 return 0;
524 }
525
526 static int reparent_typedef(struct ctf_node *node, struct ctf_node *parent)
527 {
528 switch (parent->type) {
529 case NODE_ROOT:
530 _bt_list_splice_tail(&node->tmp_head, &parent->u.root.declaration_list);
531 break;
532 case NODE_EVENT:
533 _bt_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
534 break;
535 case NODE_STREAM:
536 _bt_list_splice_tail(&node->tmp_head, &parent->u.stream.declaration_list);
537 break;
538 case NODE_ENV:
539 _bt_list_splice_tail(&node->tmp_head, &parent->u.env.declaration_list);
540 break;
541 case NODE_TRACE:
542 _bt_list_splice_tail(&node->tmp_head, &parent->u.trace.declaration_list);
543 break;
544 case NODE_CLOCK:
545 _bt_list_splice_tail(&node->tmp_head, &parent->u.clock.declaration_list);
546 break;
547 case NODE_CALLSITE:
548 _bt_list_splice_tail(&node->tmp_head, &parent->u.callsite.declaration_list);
549 break;
550 case NODE_VARIANT:
551 _bt_list_splice_tail(&node->tmp_head, &parent->u.variant.declaration_list);
552 break;
553 case NODE_STRUCT:
554 _bt_list_splice_tail(&node->tmp_head, &parent->u._struct.declaration_list);
555 break;
556
557 case NODE_FLOATING_POINT:
558 case NODE_INTEGER:
559 case NODE_STRING:
560 case NODE_CTF_EXPRESSION:
561 case NODE_TYPEDEF:
562 case NODE_TYPEALIAS_TARGET:
563 case NODE_TYPEALIAS_ALIAS:
564 case NODE_TYPEALIAS:
565 case NODE_TYPE_SPECIFIER:
566 case NODE_TYPE_SPECIFIER_LIST:
567 case NODE_POINTER:
568 case NODE_TYPE_DECLARATOR:
569 case NODE_ENUMERATOR:
570 case NODE_ENUM:
571 case NODE_STRUCT_OR_VARIANT_DECLARATION:
572 case NODE_UNARY_EXPRESSION:
573 return -EPERM;
574
575 case NODE_UNKNOWN:
576 default:
577 printfn_fatal(node, "unknown node type %d", parent->type);
578 return -EINVAL;
579 }
580 return 0;
581 }
582
583 static int reparent_typealias(struct ctf_node *node, struct ctf_node *parent)
584 {
585 switch (parent->type) {
586 case NODE_ROOT:
587 _bt_list_splice_tail(&node->tmp_head, &parent->u.root.declaration_list);
588 break;
589 case NODE_EVENT:
590 _bt_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
591 break;
592 case NODE_STREAM:
593 _bt_list_splice_tail(&node->tmp_head, &parent->u.stream.declaration_list);
594 break;
595 case NODE_ENV:
596 _bt_list_splice_tail(&node->tmp_head, &parent->u.env.declaration_list);
597 break;
598 case NODE_TRACE:
599 _bt_list_splice_tail(&node->tmp_head, &parent->u.trace.declaration_list);
600 break;
601 case NODE_CLOCK:
602 _bt_list_splice_tail(&node->tmp_head, &parent->u.clock.declaration_list);
603 break;
604 case NODE_CALLSITE:
605 _bt_list_splice_tail(&node->tmp_head, &parent->u.callsite.declaration_list);
606 break;
607 case NODE_VARIANT:
608 _bt_list_splice_tail(&node->tmp_head, &parent->u.variant.declaration_list);
609 break;
610 case NODE_STRUCT:
611 _bt_list_splice_tail(&node->tmp_head, &parent->u._struct.declaration_list);
612 break;
613
614 case NODE_FLOATING_POINT:
615 case NODE_INTEGER:
616 case NODE_STRING:
617 case NODE_CTF_EXPRESSION:
618 case NODE_TYPEDEF:
619 case NODE_TYPEALIAS_TARGET:
620 case NODE_TYPEALIAS_ALIAS:
621 case NODE_TYPEALIAS:
622 case NODE_TYPE_SPECIFIER:
623 case NODE_TYPE_SPECIFIER_LIST:
624 case NODE_POINTER:
625 case NODE_TYPE_DECLARATOR:
626 case NODE_ENUMERATOR:
627 case NODE_ENUM:
628 case NODE_STRUCT_OR_VARIANT_DECLARATION:
629 case NODE_UNARY_EXPRESSION:
630 return -EPERM;
631
632 case NODE_UNKNOWN:
633 default:
634 printfn_fatal(node, "unknown node type '%d'", (int) parent->type);
635 return -EINVAL;
636 }
637 return 0;
638 }
639
640 static int reparent_type_specifier(struct ctf_node *node,
641 struct ctf_node *parent)
642 {
643 switch (parent->type) {
644 case NODE_TYPE_SPECIFIER_LIST:
645 _bt_list_splice_tail(&node->tmp_head, &parent->u.type_specifier_list.head);
646 break;
647
648 case NODE_TYPE_SPECIFIER:
649 case NODE_EVENT:
650 case NODE_STREAM:
651 case NODE_ENV:
652 case NODE_TRACE:
653 case NODE_CLOCK:
654 case NODE_CALLSITE:
655 case NODE_VARIANT:
656 case NODE_STRUCT:
657 case NODE_TYPEDEF:
658 case NODE_TYPEALIAS_TARGET:
659 case NODE_TYPEALIAS_ALIAS:
660 case NODE_TYPE_DECLARATOR:
661 case NODE_ENUM:
662 case NODE_STRUCT_OR_VARIANT_DECLARATION:
663 case NODE_TYPEALIAS:
664 case NODE_FLOATING_POINT:
665 case NODE_INTEGER:
666 case NODE_STRING:
667 case NODE_CTF_EXPRESSION:
668 case NODE_POINTER:
669 case NODE_ENUMERATOR:
670 case NODE_UNARY_EXPRESSION:
671 return -EPERM;
672
673 case NODE_UNKNOWN:
674 default:
675 printfn_fatal(node, "unknown node type '%d'", (int) parent->type);
676 return -EINVAL;
677 }
678 return 0;
679 }
680
681 static int reparent_type_specifier_list(struct ctf_node *node,
682 struct ctf_node *parent)
683 {
684 switch (parent->type) {
685 case NODE_ROOT:
686 bt_list_add_tail(&node->siblings, &parent->u.root.declaration_list);
687 break;
688 case NODE_EVENT:
689 bt_list_add_tail(&node->siblings, &parent->u.event.declaration_list);
690 break;
691 case NODE_STREAM:
692 bt_list_add_tail(&node->siblings, &parent->u.stream.declaration_list);
693 break;
694 case NODE_ENV:
695 bt_list_add_tail(&node->siblings, &parent->u.env.declaration_list);
696 break;
697 case NODE_TRACE:
698 bt_list_add_tail(&node->siblings, &parent->u.trace.declaration_list);
699 break;
700 case NODE_CLOCK:
701 bt_list_add_tail(&node->siblings, &parent->u.clock.declaration_list);
702 break;
703 case NODE_CALLSITE:
704 bt_list_add_tail(&node->siblings, &parent->u.callsite.declaration_list);
705 break;
706 case NODE_VARIANT:
707 bt_list_add_tail(&node->siblings, &parent->u.variant.declaration_list);
708 break;
709 case NODE_STRUCT:
710 bt_list_add_tail(&node->siblings, &parent->u._struct.declaration_list);
711 break;
712 case NODE_TYPEDEF:
713 parent->u._typedef.type_specifier_list = node;
714 break;
715 case NODE_TYPEALIAS_TARGET:
716 parent->u.typealias_target.type_specifier_list = node;
717 break;
718 case NODE_TYPEALIAS_ALIAS:
719 parent->u.typealias_alias.type_specifier_list = node;
720 break;
721 case NODE_ENUM:
722 parent->u._enum.container_type = node;
723 break;
724 case NODE_STRUCT_OR_VARIANT_DECLARATION:
725 parent->u.struct_or_variant_declaration.type_specifier_list = node;
726 break;
727 case NODE_TYPE_DECLARATOR:
728 case NODE_TYPE_SPECIFIER:
729 case NODE_TYPEALIAS:
730 case NODE_FLOATING_POINT:
731 case NODE_INTEGER:
732 case NODE_STRING:
733 case NODE_CTF_EXPRESSION:
734 case NODE_POINTER:
735 case NODE_ENUMERATOR:
736 case NODE_UNARY_EXPRESSION:
737 return -EPERM;
738
739 case NODE_UNKNOWN:
740 default:
741 printfn_fatal(node, "unknown node type '%d'", (int) parent->type);
742 return -EINVAL;
743 }
744 return 0;
745 }
746
747 static int reparent_type_declarator(struct ctf_node *node,
748 struct ctf_node *parent)
749 {
750 switch (parent->type) {
751 case NODE_TYPE_DECLARATOR:
752 parent->u.type_declarator.type = TYPEDEC_NESTED;
753 parent->u.type_declarator.u.nested.type_declarator = node;
754 break;
755 case NODE_STRUCT_OR_VARIANT_DECLARATION:
756 _bt_list_splice_tail(&node->tmp_head, &parent->u.struct_or_variant_declaration.type_declarators);
757 break;
758 case NODE_TYPEDEF:
759 _bt_list_splice_tail(&node->tmp_head, &parent->u._typedef.type_declarators);
760 break;
761 case NODE_TYPEALIAS_TARGET:
762 _bt_list_splice_tail(&node->tmp_head, &parent->u.typealias_target.type_declarators);
763 break;
764 case NODE_TYPEALIAS_ALIAS:
765 _bt_list_splice_tail(&node->tmp_head, &parent->u.typealias_alias.type_declarators);
766 break;
767
768 case NODE_ROOT:
769 case NODE_EVENT:
770 case NODE_STREAM:
771 case NODE_ENV:
772 case NODE_TRACE:
773 case NODE_CLOCK:
774 case NODE_CALLSITE:
775 case NODE_VARIANT:
776 case NODE_STRUCT:
777 case NODE_TYPEALIAS:
778 case NODE_ENUM:
779 case NODE_FLOATING_POINT:
780 case NODE_INTEGER:
781 case NODE_STRING:
782 case NODE_CTF_EXPRESSION:
783 case NODE_TYPE_SPECIFIER:
784 case NODE_TYPE_SPECIFIER_LIST:
785 case NODE_POINTER:
786 case NODE_ENUMERATOR:
787 case NODE_UNARY_EXPRESSION:
788 return -EPERM;
789
790 case NODE_UNKNOWN:
791 default:
792 printfn_fatal(node, "unknown node type '%d'", (int) parent->type);
793 return -EINVAL;
794 }
795 return 0;
796 }
797
798 /*
799 * set_parent_node
800 *
801 * Link node to parent. Returns 0 on success, -EPERM if it is not permitted to
802 * create the link declared by the input, -ENOENT if node or parent is NULL,
803 * -EINVAL if there is an internal structure problem.
804 */
805 static int set_parent_node(struct ctf_node *node,
806 struct ctf_node *parent)
807 {
808 if (!node || !parent)
809 return -ENOENT;
810
811 /* Note: Linking to parent will be done only by an external visitor */
812
813 switch (node->type) {
814 case NODE_ROOT:
815 printfn_fatal(node, "trying to reparent root node");
816 return -EINVAL;
817
818 case NODE_EVENT:
819 if (parent->type == NODE_ROOT) {
820 _bt_list_splice_tail(&node->tmp_head, &parent->u.root.event);
821 } else {
822 return -EPERM;
823 }
824 break;
825 case NODE_STREAM:
826 if (parent->type == NODE_ROOT) {
827 _bt_list_splice_tail(&node->tmp_head, &parent->u.root.stream);
828 } else {
829 return -EPERM;
830 }
831 break;
832 case NODE_ENV:
833 if (parent->type == NODE_ROOT) {
834 _bt_list_splice_tail(&node->tmp_head, &parent->u.root.env);
835 } else {
836 return -EPERM;
837 }
838 break;
839 case NODE_TRACE:
840 if (parent->type == NODE_ROOT) {
841 _bt_list_splice_tail(&node->tmp_head, &parent->u.root.trace);
842 } else {
843 return -EPERM;
844 }
845 break;
846 case NODE_CLOCK:
847 if (parent->type == NODE_ROOT) {
848 _bt_list_splice_tail(&node->tmp_head, &parent->u.root.clock);
849 } else {
850 return -EPERM;
851 }
852 break;
853 case NODE_CALLSITE:
854 if (parent->type == NODE_ROOT) {
855 _bt_list_splice_tail(&node->tmp_head, &parent->u.root.callsite);
856 } else {
857 return -EPERM;
858 }
859 break;
860
861 case NODE_CTF_EXPRESSION:
862 return reparent_ctf_expression(node, parent);
863 case NODE_UNARY_EXPRESSION:
864 if (parent->type == NODE_TYPE_DECLARATOR)
865 parent->u.type_declarator.bitfield_len = node;
866 else
867 return -EPERM;
868 break;
869
870 case NODE_TYPEDEF:
871 return reparent_typedef(node, parent);
872 case NODE_TYPEALIAS_TARGET:
873 if (parent->type == NODE_TYPEALIAS)
874 parent->u.typealias.target = node;
875 else
876 return -EINVAL;
877 case NODE_TYPEALIAS_ALIAS:
878 if (parent->type == NODE_TYPEALIAS)
879 parent->u.typealias.alias = node;
880 else
881 return -EINVAL;
882 case NODE_TYPEALIAS:
883 return reparent_typealias(node, parent);
884
885 case NODE_POINTER:
886 if (parent->type == NODE_TYPE_DECLARATOR) {
887 _bt_list_splice_tail(&node->tmp_head, &parent->u.type_declarator.pointers);
888 } else
889 return -EPERM;
890 break;
891 case NODE_TYPE_DECLARATOR:
892 return reparent_type_declarator(node, parent);
893
894 case NODE_TYPE_SPECIFIER_LIST:
895 return reparent_type_specifier_list(node, parent);
896
897 case NODE_TYPE_SPECIFIER:
898 return reparent_type_specifier(node, parent);
899
900 case NODE_FLOATING_POINT:
901 case NODE_INTEGER:
902 case NODE_STRING:
903 case NODE_ENUM:
904 case NODE_VARIANT:
905 case NODE_STRUCT:
906 return -EINVAL; /* Dealt with internally within grammar */
907
908 case NODE_ENUMERATOR:
909 if (parent->type == NODE_ENUM) {
910 _bt_list_splice_tail(&node->tmp_head, &parent->u._enum.enumerator_list);
911 } else {
912 return -EPERM;
913 }
914 break;
915 case NODE_STRUCT_OR_VARIANT_DECLARATION:
916 switch (parent->type) {
917 case NODE_STRUCT:
918 _bt_list_splice_tail(&node->tmp_head, &parent->u._struct.declaration_list);
919 break;
920 case NODE_VARIANT:
921 _bt_list_splice_tail(&node->tmp_head, &parent->u.variant.declaration_list);
922 break;
923 default:
924 return -EINVAL;
925 }
926 break;
927
928 case NODE_UNKNOWN:
929 default:
930 printfn_fatal(node, "unknown node type '%d'", (int) parent->type);
931 return -EINVAL;
932 }
933 return 0;
934 }
935
936 BT_HIDDEN
937 void yyerror(struct ctf_scanner *scanner, yyscan_t yyscanner, const char *str)
938 {
939 printfl_error(yyget_lineno(scanner->scanner),
940 "token \"%s\": %s\n",
941 yyget_text(scanner->scanner), str);
942 }
943
944 BT_HIDDEN
945 int yywrap(void)
946 {
947 return 1;
948 }
949
950 #define reparent_error(scanner, str) \
951 do { \
952 yyerror(scanner, scanner->scanner, YY_("reparent_error: " str)); \
953 YYERROR; \
954 } while (0)
955
956 static struct ctf_ast *ctf_ast_alloc(struct ctf_scanner *scanner)
957 {
958 struct ctf_ast *ast;
959
960 ast = objstack_alloc(scanner->objstack, sizeof(*ast));
961 if (!ast)
962 return NULL;
963 ast->root.type = NODE_ROOT;
964 BT_INIT_LIST_HEAD(&ast->root.tmp_head);
965 BT_INIT_LIST_HEAD(&ast->root.u.root.declaration_list);
966 BT_INIT_LIST_HEAD(&ast->root.u.root.trace);
967 BT_INIT_LIST_HEAD(&ast->root.u.root.env);
968 BT_INIT_LIST_HEAD(&ast->root.u.root.stream);
969 BT_INIT_LIST_HEAD(&ast->root.u.root.event);
970 BT_INIT_LIST_HEAD(&ast->root.u.root.clock);
971 BT_INIT_LIST_HEAD(&ast->root.u.root.callsite);
972 return ast;
973 }
974
975 int ctf_scanner_append_ast(struct ctf_scanner *scanner, FILE *input)
976 {
977 /* Start processing new stream */
978 yyrestart(input, scanner->scanner);
979 if (yydebug)
980 fprintf(stdout, "Scanner input is a%s.\n",
981 isatty(fileno(input)) ? "n interactive tty" :
982 " noninteractive file");
983 return yyparse(scanner, scanner->scanner);
984 }
985
986 struct ctf_scanner *ctf_scanner_alloc(void)
987 {
988 struct ctf_scanner *scanner;
989 int ret;
990
991 yydebug = babeltrace_debug;
992
993 scanner = malloc(sizeof(*scanner));
994 if (!scanner)
995 return NULL;
996 memset(scanner, 0, sizeof(*scanner));
997 ret = yylex_init_extra(scanner, &scanner->scanner);
998 if (ret) {
999 printf_fatal("yylex_init error");
1000 goto cleanup_scanner;
1001 }
1002 scanner->objstack = objstack_create();
1003 if (!scanner->objstack)
1004 goto cleanup_lexer;
1005 scanner->ast = ctf_ast_alloc(scanner);
1006 if (!scanner->ast)
1007 goto cleanup_objstack;
1008 init_scope(&scanner->root_scope, NULL);
1009 scanner->cs = &scanner->root_scope;
1010
1011 return scanner;
1012
1013 cleanup_objstack:
1014 objstack_destroy(scanner->objstack);
1015 cleanup_lexer:
1016 ret = yylex_destroy(scanner->scanner);
1017 if (!ret)
1018 printf_fatal("yylex_destroy error");
1019 cleanup_scanner:
1020 free(scanner);
1021 return NULL;
1022 }
1023
1024 void ctf_scanner_free(struct ctf_scanner *scanner)
1025 {
1026 int ret;
1027
1028 if (!scanner)
1029 return;
1030 finalize_scope(&scanner->root_scope);
1031 objstack_destroy(scanner->objstack);
1032 ret = yylex_destroy(scanner->scanner);
1033 if (ret)
1034 printf_error("yylex_destroy error");
1035 free(scanner);
1036 }
1037
1038 %}
1039
1040 %define api.pure
1041 /* %locations */
1042 %error-verbose
1043 %parse-param {struct ctf_scanner *scanner}
1044 %parse-param {yyscan_t yyscanner}
1045 %lex-param {yyscan_t yyscanner}
1046 /*
1047 * Expect two shift-reduce conflicts. Caused by enum name-opt : type {}
1048 * vs struct { int :value; } (unnamed bit-field). The default is to
1049 * shift, so whenever we encounter an enumeration, we are doing the
1050 * proper thing (shift). It is illegal to declare an enumeration
1051 * "bit-field", so it is OK if this situation ends up in a parsing
1052 * error.
1053 */
1054 %expect 2
1055 %start file
1056 %token INTEGER_LITERAL STRING_LITERAL CHARACTER_LITERAL LSBRAC RSBRAC LPAREN RPAREN LBRAC RBRAC RARROW STAR PLUS MINUS LT GT TYPEASSIGN COLON SEMICOLON DOTDOTDOT DOT EQUAL COMMA CONST CHAR DOUBLE ENUM ENV EVENT FLOATING_POINT FLOAT INTEGER INT LONG SHORT SIGNED STREAM STRING STRUCT TRACE CALLSITE CLOCK TYPEALIAS TYPEDEF UNSIGNED VARIANT VOID _BOOL _COMPLEX _IMAGINARY TOK_ALIGN
1057 %token <s> IDENTIFIER ID_TYPE
1058 %token ERROR
1059 %union
1060 {
1061 long long ll;
1062 unsigned long long ull;
1063 char c;
1064 char *s;
1065 struct ctf_node *n;
1066 }
1067
1068 %type <s> STRING_LITERAL CHARACTER_LITERAL
1069
1070 %type <s> keywords
1071
1072 %type <ull> INTEGER_LITERAL
1073 %type <n> postfix_expression unary_expression unary_expression_or_range
1074
1075 %type <n> declaration
1076 %type <n> event_declaration
1077 %type <n> stream_declaration
1078 %type <n> env_declaration
1079 %type <n> trace_declaration
1080 %type <n> clock_declaration
1081 %type <n> callsite_declaration
1082 %type <n> integer_declaration_specifiers
1083 %type <n> declaration_specifiers
1084 %type <n> alias_declaration_specifiers
1085
1086 %type <n> type_declarator_list
1087 %type <n> integer_type_specifier
1088 %type <n> type_specifier
1089 %type <n> struct_type_specifier
1090 %type <n> variant_type_specifier
1091 %type <n> enum_type_specifier
1092 %type <n> struct_or_variant_declaration_list
1093 %type <n> struct_or_variant_declaration
1094 %type <n> struct_or_variant_declarator_list
1095 %type <n> struct_or_variant_declarator
1096 %type <n> enumerator_list
1097 %type <n> enumerator
1098 %type <n> abstract_declarator_list
1099 %type <n> abstract_declarator
1100 %type <n> direct_abstract_declarator
1101 %type <n> alias_abstract_declarator_list
1102 %type <n> alias_abstract_declarator
1103 %type <n> direct_alias_abstract_declarator
1104 %type <n> declarator
1105 %type <n> direct_declarator
1106 %type <n> type_declarator
1107 %type <n> direct_type_declarator
1108 %type <n> pointer
1109 %type <n> ctf_assignment_expression_list
1110 %type <n> ctf_assignment_expression
1111
1112 %%
1113
1114 file:
1115 declaration
1116 {
1117 if (set_parent_node($1, &ctf_scanner_get_ast(scanner)->root))
1118 reparent_error(scanner, "error reparenting to root");
1119 }
1120 | file declaration
1121 {
1122 if (set_parent_node($2, &ctf_scanner_get_ast(scanner)->root))
1123 reparent_error(scanner, "error reparenting to root");
1124 }
1125 ;
1126
1127 keywords:
1128 VOID
1129 { $$ = yylval.s; }
1130 | CHAR
1131 { $$ = yylval.s; }
1132 | SHORT
1133 { $$ = yylval.s; }
1134 | INT
1135 { $$ = yylval.s; }
1136 | LONG
1137 { $$ = yylval.s; }
1138 | FLOAT
1139 { $$ = yylval.s; }
1140 | DOUBLE
1141 { $$ = yylval.s; }
1142 | SIGNED
1143 { $$ = yylval.s; }
1144 | UNSIGNED
1145 { $$ = yylval.s; }
1146 | _BOOL
1147 { $$ = yylval.s; }
1148 | _COMPLEX
1149 { $$ = yylval.s; }
1150 | _IMAGINARY
1151 { $$ = yylval.s; }
1152 | FLOATING_POINT
1153 { $$ = yylval.s; }
1154 | INTEGER
1155 { $$ = yylval.s; }
1156 | STRING
1157 { $$ = yylval.s; }
1158 | ENUM
1159 { $$ = yylval.s; }
1160 | VARIANT
1161 { $$ = yylval.s; }
1162 | STRUCT
1163 { $$ = yylval.s; }
1164 | CONST
1165 { $$ = yylval.s; }
1166 | TYPEDEF
1167 { $$ = yylval.s; }
1168 | EVENT
1169 { $$ = yylval.s; }
1170 | STREAM
1171 { $$ = yylval.s; }
1172 | ENV
1173 { $$ = yylval.s; }
1174 | TRACE
1175 { $$ = yylval.s; }
1176 | CLOCK
1177 { $$ = yylval.s; }
1178 | CALLSITE
1179 { $$ = yylval.s; }
1180 | TOK_ALIGN
1181 { $$ = yylval.s; }
1182 ;
1183
1184
1185 /* 2: Phrase structure grammar */
1186
1187 postfix_expression:
1188 IDENTIFIER
1189 {
1190 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1191 $$->u.unary_expression.type = UNARY_STRING;
1192 $$->u.unary_expression.u.string = yylval.s;
1193 }
1194 | ID_TYPE
1195 {
1196 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1197 $$->u.unary_expression.type = UNARY_STRING;
1198 $$->u.unary_expression.u.string = yylval.s;
1199 }
1200 | keywords
1201 {
1202 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1203 $$->u.unary_expression.type = UNARY_STRING;
1204 $$->u.unary_expression.u.string = yylval.s;
1205 }
1206 | INTEGER_LITERAL
1207 {
1208 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1209 $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
1210 $$->u.unary_expression.u.unsigned_constant = $1;
1211 }
1212 | STRING_LITERAL
1213 {
1214 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1215 $$->u.unary_expression.type = UNARY_STRING;
1216 $$->u.unary_expression.u.string = $1;
1217 }
1218 | CHARACTER_LITERAL
1219 {
1220 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1221 $$->u.unary_expression.type = UNARY_STRING;
1222 $$->u.unary_expression.u.string = $1;
1223 }
1224 | LPAREN unary_expression RPAREN
1225 {
1226 $$ = $2;
1227 }
1228 | postfix_expression LSBRAC unary_expression RSBRAC
1229 {
1230 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1231 $$->u.unary_expression.type = UNARY_SBRAC;
1232 $$->u.unary_expression.u.sbrac_exp = $3;
1233 bt_list_splice(&($1)->tmp_head, &($$)->tmp_head);
1234 bt_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1235 }
1236 | postfix_expression DOT IDENTIFIER
1237 {
1238 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1239 $$->u.unary_expression.type = UNARY_STRING;
1240 $$->u.unary_expression.u.string = yylval.s;
1241 $$->u.unary_expression.link = UNARY_DOTLINK;
1242 bt_list_splice(&($1)->tmp_head, &($$)->tmp_head);
1243 bt_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1244 }
1245 | postfix_expression DOT ID_TYPE
1246 {
1247 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1248 $$->u.unary_expression.type = UNARY_STRING;
1249 $$->u.unary_expression.u.string = yylval.s;
1250 $$->u.unary_expression.link = UNARY_DOTLINK;
1251 bt_list_splice(&($1)->tmp_head, &($$)->tmp_head);
1252 bt_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1253 }
1254 | postfix_expression DOT keywords
1255 {
1256 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1257 $$->u.unary_expression.type = UNARY_STRING;
1258 $$->u.unary_expression.u.string = yylval.s;
1259 $$->u.unary_expression.link = UNARY_DOTLINK;
1260 bt_list_splice(&($1)->tmp_head, &($$)->tmp_head);
1261 bt_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1262 }
1263 | postfix_expression RARROW IDENTIFIER
1264 {
1265 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1266 $$->u.unary_expression.type = UNARY_STRING;
1267 $$->u.unary_expression.u.string = yylval.s;
1268 $$->u.unary_expression.link = UNARY_ARROWLINK;
1269 bt_list_splice(&($1)->tmp_head, &($$)->tmp_head);
1270 bt_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1271 }
1272 | postfix_expression RARROW ID_TYPE
1273 {
1274 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1275 $$->u.unary_expression.type = UNARY_STRING;
1276 $$->u.unary_expression.u.string = yylval.s;
1277 $$->u.unary_expression.link = UNARY_ARROWLINK;
1278 bt_list_splice(&($1)->tmp_head, &($$)->tmp_head);
1279 bt_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1280 }
1281 ;
1282
1283 unary_expression:
1284 postfix_expression
1285 { $$ = $1; }
1286 | PLUS postfix_expression
1287 {
1288 $$ = $2;
1289 if ($$->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT
1290 && $$->u.unary_expression.type != UNARY_SIGNED_CONSTANT) {
1291 reparent_error(scanner, "expecting numeric constant");
1292 }
1293 }
1294 | MINUS postfix_expression
1295 {
1296 $$ = $2;
1297 if ($$->u.unary_expression.type == UNARY_UNSIGNED_CONSTANT) {
1298 $$->u.unary_expression.type = UNARY_SIGNED_CONSTANT;
1299 $$->u.unary_expression.u.signed_constant =
1300 -($$->u.unary_expression.u.unsigned_constant);
1301 } else if ($$->u.unary_expression.type == UNARY_UNSIGNED_CONSTANT) {
1302 $$->u.unary_expression.u.signed_constant =
1303 -($$->u.unary_expression.u.signed_constant);
1304 } else {
1305 reparent_error(scanner, "expecting numeric constant");
1306 }
1307 }
1308 ;
1309
1310 unary_expression_or_range:
1311 unary_expression DOTDOTDOT unary_expression
1312 {
1313 $$ = $1;
1314 _bt_list_splice_tail(&($3)->tmp_head, &($$)->tmp_head);
1315 $3->u.unary_expression.link = UNARY_DOTDOTDOT;
1316 }
1317 | unary_expression
1318 { $$ = $1; }
1319 ;
1320
1321 /* 2.2: Declarations */
1322
1323 declaration:
1324 declaration_specifiers SEMICOLON
1325 { $$ = $1; }
1326 | event_declaration
1327 { $$ = $1; }
1328 | stream_declaration
1329 { $$ = $1; }
1330 | env_declaration
1331 { $$ = $1; }
1332 | trace_declaration
1333 { $$ = $1; }
1334 | clock_declaration
1335 { $$ = $1; }
1336 | callsite_declaration
1337 { $$ = $1; }
1338 | declaration_specifiers TYPEDEF declaration_specifiers type_declarator_list SEMICOLON
1339 {
1340 struct ctf_node *list;
1341
1342 $$ = make_node(scanner, NODE_TYPEDEF);
1343 list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1344 $$->u._typedef.type_specifier_list = list;
1345 _bt_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1346 _bt_list_splice_tail(&($3)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1347 _bt_list_splice_tail(&($4)->tmp_head, &($$)->u._typedef.type_declarators);
1348 }
1349 | TYPEDEF declaration_specifiers type_declarator_list SEMICOLON
1350 {
1351 struct ctf_node *list;
1352
1353 $$ = make_node(scanner, NODE_TYPEDEF);
1354 list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1355 $$->u._typedef.type_specifier_list = list;
1356 _bt_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1357 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
1358 }
1359 | declaration_specifiers TYPEDEF type_declarator_list SEMICOLON
1360 {
1361 struct ctf_node *list;
1362
1363 $$ = make_node(scanner, NODE_TYPEDEF);
1364 list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1365 $$->u._typedef.type_specifier_list = list;
1366 _bt_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1367 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
1368 }
1369 | TYPEALIAS declaration_specifiers abstract_declarator_list TYPEASSIGN alias_declaration_specifiers alias_abstract_declarator_list SEMICOLON
1370 {
1371 struct ctf_node *list;
1372
1373 $$ = make_node(scanner, NODE_TYPEALIAS);
1374 $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
1375 $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
1376
1377 list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1378 $$->u.typealias.target->u.typealias_target.type_specifier_list = list;
1379 _bt_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1380 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u.typealias.target->u.typealias_target.type_declarators);
1381
1382 list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1383 $$->u.typealias.alias->u.typealias_alias.type_specifier_list = list;
1384 _bt_list_splice_tail(&($5)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1385 _bt_list_splice_tail(&($6)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
1386 }
1387 ;
1388
1389 event_declaration:
1390 event_declaration_begin event_declaration_end
1391 {
1392 $$ = make_node(scanner, NODE_EVENT);
1393 }
1394 | event_declaration_begin ctf_assignment_expression_list event_declaration_end
1395 {
1396 $$ = make_node(scanner, NODE_EVENT);
1397 if (set_parent_node($2, $$))
1398 reparent_error(scanner, "event_declaration");
1399 }
1400 ;
1401
1402 event_declaration_begin:
1403 EVENT LBRAC
1404 { push_scope(scanner); }
1405 ;
1406
1407 event_declaration_end:
1408 RBRAC SEMICOLON
1409 { pop_scope(scanner); }
1410 ;
1411
1412
1413 stream_declaration:
1414 stream_declaration_begin stream_declaration_end
1415 {
1416 $$ = make_node(scanner, NODE_STREAM);
1417 }
1418 | stream_declaration_begin ctf_assignment_expression_list stream_declaration_end
1419 {
1420 $$ = make_node(scanner, NODE_STREAM);
1421 if (set_parent_node($2, $$))
1422 reparent_error(scanner, "stream_declaration");
1423 }
1424 ;
1425
1426 stream_declaration_begin:
1427 STREAM LBRAC
1428 { push_scope(scanner); }
1429 ;
1430
1431 stream_declaration_end:
1432 RBRAC SEMICOLON
1433 { pop_scope(scanner); }
1434 ;
1435
1436 env_declaration:
1437 env_declaration_begin env_declaration_end
1438 {
1439 $$ = make_node(scanner, NODE_ENV);
1440 }
1441 | env_declaration_begin ctf_assignment_expression_list env_declaration_end
1442 {
1443 $$ = make_node(scanner, NODE_ENV);
1444 if (set_parent_node($2, $$))
1445 reparent_error(scanner, "env declaration");
1446 }
1447 ;
1448
1449 env_declaration_begin:
1450 ENV LBRAC
1451 { push_scope(scanner); }
1452 ;
1453
1454 env_declaration_end:
1455 RBRAC SEMICOLON
1456 { pop_scope(scanner); }
1457 ;
1458
1459 trace_declaration:
1460 trace_declaration_begin trace_declaration_end
1461 {
1462 $$ = make_node(scanner, NODE_TRACE);
1463 }
1464 | trace_declaration_begin ctf_assignment_expression_list trace_declaration_end
1465 {
1466 $$ = make_node(scanner, NODE_TRACE);
1467 if (set_parent_node($2, $$))
1468 reparent_error(scanner, "trace_declaration");
1469 }
1470 ;
1471
1472 trace_declaration_begin:
1473 TRACE LBRAC
1474 { push_scope(scanner); }
1475 ;
1476
1477 trace_declaration_end:
1478 RBRAC SEMICOLON
1479 { pop_scope(scanner); }
1480 ;
1481
1482 clock_declaration:
1483 CLOCK clock_declaration_begin clock_declaration_end
1484 {
1485 $$ = make_node(scanner, NODE_CLOCK);
1486 }
1487 | CLOCK clock_declaration_begin ctf_assignment_expression_list clock_declaration_end
1488 {
1489 $$ = make_node(scanner, NODE_CLOCK);
1490 if (set_parent_node($3, $$))
1491 reparent_error(scanner, "trace_declaration");
1492 }
1493 ;
1494
1495 clock_declaration_begin:
1496 LBRAC
1497 { push_scope(scanner); }
1498 ;
1499
1500 clock_declaration_end:
1501 RBRAC SEMICOLON
1502 { pop_scope(scanner); }
1503 ;
1504
1505 callsite_declaration:
1506 CALLSITE callsite_declaration_begin callsite_declaration_end
1507 {
1508 $$ = make_node(scanner, NODE_CALLSITE);
1509 }
1510 | CALLSITE callsite_declaration_begin ctf_assignment_expression_list callsite_declaration_end
1511 {
1512 $$ = make_node(scanner, NODE_CALLSITE);
1513 if (set_parent_node($3, $$))
1514 reparent_error(scanner, "trace_declaration");
1515 }
1516 ;
1517
1518 callsite_declaration_begin:
1519 LBRAC
1520 { push_scope(scanner); }
1521 ;
1522
1523 callsite_declaration_end:
1524 RBRAC SEMICOLON
1525 { pop_scope(scanner); }
1526 ;
1527
1528 integer_declaration_specifiers:
1529 CONST
1530 {
1531 struct ctf_node *node;
1532
1533 $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1534 node = make_node(scanner, NODE_TYPE_SPECIFIER);
1535 node->u.type_specifier.type = TYPESPEC_CONST;
1536 bt_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
1537 }
1538 | integer_type_specifier
1539 {
1540 struct ctf_node *node;
1541
1542 $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1543 node = $1;
1544 bt_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
1545 }
1546 | integer_declaration_specifiers CONST
1547 {
1548 struct ctf_node *node;
1549
1550 $$ = $1;
1551 node = make_node(scanner, NODE_TYPE_SPECIFIER);
1552 node->u.type_specifier.type = TYPESPEC_CONST;
1553 bt_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
1554 }
1555 | integer_declaration_specifiers integer_type_specifier
1556 {
1557 $$ = $1;
1558 bt_list_add_tail(&($2)->siblings, &($$)->u.type_specifier_list.head);
1559 }
1560 ;
1561
1562 declaration_specifiers:
1563 CONST
1564 {
1565 struct ctf_node *node;
1566
1567 $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1568 node = make_node(scanner, NODE_TYPE_SPECIFIER);
1569 node->u.type_specifier.type = TYPESPEC_CONST;
1570 bt_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
1571 }
1572 | type_specifier
1573 {
1574 struct ctf_node *node;
1575
1576 $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1577 node = $1;
1578 bt_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
1579 }
1580 | declaration_specifiers CONST
1581 {
1582 struct ctf_node *node;
1583
1584 $$ = $1;
1585 node = make_node(scanner, NODE_TYPE_SPECIFIER);
1586 node->u.type_specifier.type = TYPESPEC_CONST;
1587 bt_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
1588 }
1589 | declaration_specifiers type_specifier
1590 {
1591 $$ = $1;
1592 bt_list_add_tail(&($2)->siblings, &($$)->u.type_specifier_list.head);
1593 }
1594 ;
1595
1596 type_declarator_list:
1597 type_declarator
1598 { $$ = $1; }
1599 | type_declarator_list COMMA type_declarator
1600 {
1601 $$ = $1;
1602 bt_list_add_tail(&($3)->siblings, &($$)->tmp_head);
1603 }
1604 ;
1605
1606 integer_type_specifier:
1607 CHAR
1608 {
1609 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1610 $$->u.type_specifier.type = TYPESPEC_CHAR;
1611 }
1612 | SHORT
1613 {
1614 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1615 $$->u.type_specifier.type = TYPESPEC_SHORT;
1616 }
1617 | INT
1618 {
1619 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1620 $$->u.type_specifier.type = TYPESPEC_INT;
1621 }
1622 | LONG
1623 {
1624 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1625 $$->u.type_specifier.type = TYPESPEC_LONG;
1626 }
1627 | SIGNED
1628 {
1629 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1630 $$->u.type_specifier.type = TYPESPEC_SIGNED;
1631 }
1632 | UNSIGNED
1633 {
1634 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1635 $$->u.type_specifier.type = TYPESPEC_UNSIGNED;
1636 }
1637 | _BOOL
1638 {
1639 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1640 $$->u.type_specifier.type = TYPESPEC_BOOL;
1641 }
1642 | ID_TYPE
1643 {
1644 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1645 $$->u.type_specifier.type = TYPESPEC_ID_TYPE;
1646 $$->u.type_specifier.id_type = yylval.s;
1647 }
1648 | INTEGER LBRAC RBRAC
1649 {
1650 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1651 $$->u.type_specifier.type = TYPESPEC_INTEGER;
1652 $$->u.type_specifier.node = make_node(scanner, NODE_INTEGER);
1653 }
1654 | INTEGER LBRAC ctf_assignment_expression_list RBRAC
1655 {
1656 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1657 $$->u.type_specifier.type = TYPESPEC_INTEGER;
1658 $$->u.type_specifier.node = make_node(scanner, NODE_INTEGER);
1659 if (set_parent_node($3, $$->u.type_specifier.node))
1660 reparent_error(scanner, "integer reparent error");
1661 }
1662 ;
1663
1664 type_specifier:
1665 VOID
1666 {
1667 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1668 $$->u.type_specifier.type = TYPESPEC_VOID;
1669 }
1670 | CHAR
1671 {
1672 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1673 $$->u.type_specifier.type = TYPESPEC_CHAR;
1674 }
1675 | SHORT
1676 {
1677 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1678 $$->u.type_specifier.type = TYPESPEC_SHORT;
1679 }
1680 | INT
1681 {
1682 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1683 $$->u.type_specifier.type = TYPESPEC_INT;
1684 }
1685 | LONG
1686 {
1687 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1688 $$->u.type_specifier.type = TYPESPEC_LONG;
1689 }
1690 | FLOAT
1691 {
1692 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1693 $$->u.type_specifier.type = TYPESPEC_FLOAT;
1694 }
1695 | DOUBLE
1696 {
1697 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1698 $$->u.type_specifier.type = TYPESPEC_DOUBLE;
1699 }
1700 | SIGNED
1701 {
1702 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1703 $$->u.type_specifier.type = TYPESPEC_SIGNED;
1704 }
1705 | UNSIGNED
1706 {
1707 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1708 $$->u.type_specifier.type = TYPESPEC_UNSIGNED;
1709 }
1710 | _BOOL
1711 {
1712 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1713 $$->u.type_specifier.type = TYPESPEC_BOOL;
1714 }
1715 | _COMPLEX
1716 {
1717 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1718 $$->u.type_specifier.type = TYPESPEC_COMPLEX;
1719 }
1720 | _IMAGINARY
1721 {
1722 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1723 $$->u.type_specifier.type = TYPESPEC_IMAGINARY;
1724 }
1725 | ID_TYPE
1726 {
1727 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1728 $$->u.type_specifier.type = TYPESPEC_ID_TYPE;
1729 $$->u.type_specifier.id_type = yylval.s;
1730 }
1731 | FLOATING_POINT LBRAC RBRAC
1732 {
1733 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1734 $$->u.type_specifier.type = TYPESPEC_FLOATING_POINT;
1735 $$->u.type_specifier.node = make_node(scanner, NODE_FLOATING_POINT);
1736 }
1737 | FLOATING_POINT LBRAC ctf_assignment_expression_list RBRAC
1738 {
1739 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1740 $$->u.type_specifier.type = TYPESPEC_FLOATING_POINT;
1741 $$->u.type_specifier.node = make_node(scanner, NODE_FLOATING_POINT);
1742 if (set_parent_node($3, $$->u.type_specifier.node))
1743 reparent_error(scanner, "floating point reparent error");
1744 }
1745 | INTEGER LBRAC RBRAC
1746 {
1747 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1748 $$->u.type_specifier.type = TYPESPEC_INTEGER;
1749 $$->u.type_specifier.node = make_node(scanner, NODE_INTEGER);
1750 }
1751 | INTEGER LBRAC ctf_assignment_expression_list RBRAC
1752 {
1753 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1754 $$->u.type_specifier.type = TYPESPEC_INTEGER;
1755 $$->u.type_specifier.node = make_node(scanner, NODE_INTEGER);
1756 if (set_parent_node($3, $$->u.type_specifier.node))
1757 reparent_error(scanner, "integer reparent error");
1758 }
1759 | STRING
1760 {
1761 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1762 $$->u.type_specifier.type = TYPESPEC_STRING;
1763 $$->u.type_specifier.node = make_node(scanner, NODE_STRING);
1764 }
1765 | STRING LBRAC RBRAC
1766 {
1767 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1768 $$->u.type_specifier.type = TYPESPEC_STRING;
1769 $$->u.type_specifier.node = make_node(scanner, NODE_STRING);
1770 }
1771 | STRING LBRAC ctf_assignment_expression_list RBRAC
1772 {
1773 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1774 $$->u.type_specifier.type = TYPESPEC_STRING;
1775 $$->u.type_specifier.node = make_node(scanner, NODE_STRING);
1776 if (set_parent_node($3, $$->u.type_specifier.node))
1777 reparent_error(scanner, "string reparent error");
1778 }
1779 | ENUM enum_type_specifier
1780 {
1781 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1782 $$->u.type_specifier.type = TYPESPEC_ENUM;
1783 $$->u.type_specifier.node = $2;
1784 }
1785 | VARIANT variant_type_specifier
1786 {
1787 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1788 $$->u.type_specifier.type = TYPESPEC_VARIANT;
1789 $$->u.type_specifier.node = $2;
1790 }
1791 | STRUCT struct_type_specifier
1792 {
1793 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1794 $$->u.type_specifier.type = TYPESPEC_STRUCT;
1795 $$->u.type_specifier.node = $2;
1796 }
1797 ;
1798
1799 struct_type_specifier:
1800 struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end
1801 {
1802 $$ = make_node(scanner, NODE_STRUCT);
1803 $$->u._struct.has_body = 1;
1804 if ($2 && set_parent_node($2, $$))
1805 reparent_error(scanner, "struct reparent error");
1806 }
1807 | IDENTIFIER struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end
1808 {
1809 $$ = make_node(scanner, NODE_STRUCT);
1810 $$->u._struct.has_body = 1;
1811 $$->u._struct.name = $1;
1812 if ($3 && set_parent_node($3, $$))
1813 reparent_error(scanner, "struct reparent error");
1814 }
1815 | ID_TYPE struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end
1816 {
1817 $$ = make_node(scanner, NODE_STRUCT);
1818 $$->u._struct.has_body = 1;
1819 $$->u._struct.name = $1;
1820 if ($3 && set_parent_node($3, $$))
1821 reparent_error(scanner, "struct reparent error");
1822 }
1823 | IDENTIFIER
1824 {
1825 $$ = make_node(scanner, NODE_STRUCT);
1826 $$->u._struct.has_body = 0;
1827 $$->u._struct.name = $1;
1828 }
1829 | ID_TYPE
1830 {
1831 $$ = make_node(scanner, NODE_STRUCT);
1832 $$->u._struct.has_body = 0;
1833 $$->u._struct.name = $1;
1834 }
1835 | struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end TOK_ALIGN LPAREN unary_expression RPAREN
1836 {
1837 $$ = make_node(scanner, NODE_STRUCT);
1838 $$->u._struct.has_body = 1;
1839 bt_list_add_tail(&($6)->siblings, &$$->u._struct.min_align);
1840 if ($2 && set_parent_node($2, $$))
1841 reparent_error(scanner, "struct reparent error");
1842 }
1843 | IDENTIFIER struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end TOK_ALIGN LPAREN unary_expression RPAREN
1844 {
1845 $$ = make_node(scanner, NODE_STRUCT);
1846 $$->u._struct.has_body = 1;
1847 $$->u._struct.name = $1;
1848 bt_list_add_tail(&($7)->siblings, &$$->u._struct.min_align);
1849 if ($3 && set_parent_node($3, $$))
1850 reparent_error(scanner, "struct reparent error");
1851 }
1852 | ID_TYPE struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end TOK_ALIGN LPAREN unary_expression RPAREN
1853 {
1854 $$ = make_node(scanner, NODE_STRUCT);
1855 $$->u._struct.has_body = 1;
1856 $$->u._struct.name = $1;
1857 bt_list_add_tail(&($7)->siblings, &$$->u._struct.min_align);
1858 if ($3 && set_parent_node($3, $$))
1859 reparent_error(scanner, "struct reparent error");
1860 }
1861 ;
1862
1863 struct_declaration_begin:
1864 LBRAC
1865 { push_scope(scanner); }
1866 ;
1867
1868 struct_declaration_end:
1869 RBRAC
1870 { pop_scope(scanner); }
1871 ;
1872
1873 variant_type_specifier:
1874 variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1875 {
1876 $$ = make_node(scanner, NODE_VARIANT);
1877 $$->u.variant.has_body = 1;
1878 if ($2 && set_parent_node($2, $$))
1879 reparent_error(scanner, "variant reparent error");
1880 }
1881 | LT IDENTIFIER GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1882 {
1883 $$ = make_node(scanner, NODE_VARIANT);
1884 $$->u.variant.has_body = 1;
1885 $$->u.variant.choice = $2;
1886 if ($5 && set_parent_node($5, $$))
1887 reparent_error(scanner, "variant reparent error");
1888 }
1889 | LT ID_TYPE GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1890 {
1891 $$ = make_node(scanner, NODE_VARIANT);
1892 $$->u.variant.has_body = 1;
1893 $$->u.variant.choice = $2;
1894 if ($5 && set_parent_node($5, $$))
1895 reparent_error(scanner, "variant reparent error");
1896 }
1897 | IDENTIFIER variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1898 {
1899 $$ = make_node(scanner, NODE_VARIANT);
1900 $$->u.variant.has_body = 1;
1901 $$->u.variant.name = $1;
1902 if ($3 && set_parent_node($3, $$))
1903 reparent_error(scanner, "variant reparent error");
1904 }
1905 | IDENTIFIER LT IDENTIFIER GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1906 {
1907 $$ = make_node(scanner, NODE_VARIANT);
1908 $$->u.variant.has_body = 1;
1909 $$->u.variant.name = $1;
1910 $$->u.variant.choice = $3;
1911 if ($6 && set_parent_node($6, $$))
1912 reparent_error(scanner, "variant reparent error");
1913 }
1914 | IDENTIFIER LT IDENTIFIER GT
1915 {
1916 $$ = make_node(scanner, NODE_VARIANT);
1917 $$->u.variant.has_body = 0;
1918 $$->u.variant.name = $1;
1919 $$->u.variant.choice = $3;
1920 }
1921 | IDENTIFIER LT ID_TYPE GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1922 {
1923 $$ = make_node(scanner, NODE_VARIANT);
1924 $$->u.variant.has_body = 1;
1925 $$->u.variant.name = $1;
1926 $$->u.variant.choice = $3;
1927 if ($6 && set_parent_node($6, $$))
1928 reparent_error(scanner, "variant reparent error");
1929 }
1930 | IDENTIFIER LT ID_TYPE GT
1931 {
1932 $$ = make_node(scanner, NODE_VARIANT);
1933 $$->u.variant.has_body = 0;
1934 $$->u.variant.name = $1;
1935 $$->u.variant.choice = $3;
1936 }
1937 | ID_TYPE variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1938 {
1939 $$ = make_node(scanner, NODE_VARIANT);
1940 $$->u.variant.has_body = 1;
1941 $$->u.variant.name = $1;
1942 if ($3 && set_parent_node($3, $$))
1943 reparent_error(scanner, "variant reparent error");
1944 }
1945 | ID_TYPE LT IDENTIFIER GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1946 {
1947 $$ = make_node(scanner, NODE_VARIANT);
1948 $$->u.variant.has_body = 1;
1949 $$->u.variant.name = $1;
1950 $$->u.variant.choice = $3;
1951 if ($6 && set_parent_node($6, $$))
1952 reparent_error(scanner, "variant reparent error");
1953 }
1954 | ID_TYPE LT IDENTIFIER GT
1955 {
1956 $$ = make_node(scanner, NODE_VARIANT);
1957 $$->u.variant.has_body = 0;
1958 $$->u.variant.name = $1;
1959 $$->u.variant.choice = $3;
1960 }
1961 | ID_TYPE LT ID_TYPE GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1962 {
1963 $$ = make_node(scanner, NODE_VARIANT);
1964 $$->u.variant.has_body = 1;
1965 $$->u.variant.name = $1;
1966 $$->u.variant.choice = $3;
1967 if ($6 && set_parent_node($6, $$))
1968 reparent_error(scanner, "variant reparent error");
1969 }
1970 | ID_TYPE LT ID_TYPE GT
1971 {
1972 $$ = make_node(scanner, NODE_VARIANT);
1973 $$->u.variant.has_body = 0;
1974 $$->u.variant.name = $1;
1975 $$->u.variant.choice = $3;
1976 }
1977 ;
1978
1979 variant_declaration_begin:
1980 LBRAC
1981 { push_scope(scanner); }
1982 ;
1983
1984 variant_declaration_end:
1985 RBRAC
1986 { pop_scope(scanner); }
1987 ;
1988
1989 enum_type_specifier:
1990 LBRAC enumerator_list RBRAC
1991 {
1992 $$ = make_node(scanner, NODE_ENUM);
1993 $$->u._enum.has_body = 1;
1994 _bt_list_splice_tail(&($2)->tmp_head, &($$)->u._enum.enumerator_list);
1995 }
1996 | COLON integer_declaration_specifiers LBRAC enumerator_list RBRAC
1997 {
1998 $$ = make_node(scanner, NODE_ENUM);
1999 $$->u._enum.has_body = 1;
2000 ($$)->u._enum.container_type = $2;
2001 _bt_list_splice_tail(&($4)->tmp_head, &($$)->u._enum.enumerator_list);
2002 }
2003 | IDENTIFIER LBRAC enumerator_list RBRAC
2004 {
2005 $$ = make_node(scanner, NODE_ENUM);
2006 $$->u._enum.has_body = 1;
2007 $$->u._enum.enum_id = $1;
2008 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
2009 }
2010 | IDENTIFIER COLON integer_declaration_specifiers LBRAC enumerator_list RBRAC
2011 {
2012 $$ = make_node(scanner, NODE_ENUM);
2013 $$->u._enum.has_body = 1;
2014 $$->u._enum.enum_id = $1;
2015 ($$)->u._enum.container_type = $3;
2016 _bt_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
2017 }
2018 | ID_TYPE LBRAC enumerator_list RBRAC
2019 {
2020 $$ = make_node(scanner, NODE_ENUM);
2021 $$->u._enum.has_body = 1;
2022 $$->u._enum.enum_id = $1;
2023 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
2024 }
2025 | ID_TYPE COLON integer_declaration_specifiers LBRAC enumerator_list RBRAC
2026 {
2027 $$ = make_node(scanner, NODE_ENUM);
2028 $$->u._enum.has_body = 1;
2029 $$->u._enum.enum_id = $1;
2030 ($$)->u._enum.container_type = $3;
2031 _bt_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
2032 }
2033 | LBRAC enumerator_list COMMA RBRAC
2034 {
2035 $$ = make_node(scanner, NODE_ENUM);
2036 $$->u._enum.has_body = 1;
2037 _bt_list_splice_tail(&($2)->tmp_head, &($$)->u._enum.enumerator_list);
2038 }
2039 | COLON integer_declaration_specifiers LBRAC enumerator_list COMMA RBRAC
2040 {
2041 $$ = make_node(scanner, NODE_ENUM);
2042 $$->u._enum.has_body = 1;
2043 ($$)->u._enum.container_type = $2;
2044 _bt_list_splice_tail(&($4)->tmp_head, &($$)->u._enum.enumerator_list);
2045 }
2046 | IDENTIFIER LBRAC enumerator_list COMMA RBRAC
2047 {
2048 $$ = make_node(scanner, NODE_ENUM);
2049 $$->u._enum.has_body = 1;
2050 $$->u._enum.enum_id = $1;
2051 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
2052 }
2053 | IDENTIFIER COLON integer_declaration_specifiers LBRAC enumerator_list COMMA RBRAC
2054 {
2055 $$ = make_node(scanner, NODE_ENUM);
2056 $$->u._enum.has_body = 1;
2057 $$->u._enum.enum_id = $1;
2058 ($$)->u._enum.container_type = $3;
2059 _bt_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
2060 }
2061 | IDENTIFIER
2062 {
2063 $$ = make_node(scanner, NODE_ENUM);
2064 $$->u._enum.has_body = 0;
2065 $$->u._enum.enum_id = $1;
2066 }
2067 | ID_TYPE LBRAC enumerator_list COMMA RBRAC
2068 {
2069 $$ = make_node(scanner, NODE_ENUM);
2070 $$->u._enum.has_body = 1;
2071 $$->u._enum.enum_id = $1;
2072 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
2073 }
2074 | ID_TYPE COLON integer_declaration_specifiers LBRAC enumerator_list COMMA RBRAC
2075 {
2076 $$ = make_node(scanner, NODE_ENUM);
2077 $$->u._enum.has_body = 1;
2078 $$->u._enum.enum_id = $1;
2079 ($$)->u._enum.container_type = $3;
2080 _bt_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
2081 }
2082 | ID_TYPE
2083 {
2084 $$ = make_node(scanner, NODE_ENUM);
2085 $$->u._enum.has_body = 0;
2086 $$->u._enum.enum_id = $1;
2087 }
2088 ;
2089
2090 struct_or_variant_declaration_list:
2091 /* empty */
2092 { $$ = NULL; }
2093 | struct_or_variant_declaration_list struct_or_variant_declaration
2094 {
2095 if ($1) {
2096 $$ = $1;
2097 bt_list_add_tail(&($2)->siblings, &($$)->tmp_head);
2098 } else {
2099 $$ = $2;
2100 bt_list_add_tail(&($$)->siblings, &($$)->tmp_head);
2101 }
2102 }
2103 ;
2104
2105 struct_or_variant_declaration:
2106 declaration_specifiers struct_or_variant_declarator_list SEMICOLON
2107 {
2108 struct ctf_node *list;
2109
2110 list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2111 _bt_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2112 $$ = make_node(scanner, NODE_STRUCT_OR_VARIANT_DECLARATION);
2113 ($$)->u.struct_or_variant_declaration.type_specifier_list = list;
2114 _bt_list_splice_tail(&($2)->tmp_head, &($$)->u.struct_or_variant_declaration.type_declarators);
2115 }
2116 | declaration_specifiers TYPEDEF declaration_specifiers type_declarator_list SEMICOLON
2117 {
2118 struct ctf_node *list;
2119
2120 $$ = make_node(scanner, NODE_TYPEDEF);
2121 list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2122 $$->u._typedef.type_specifier_list = list;
2123 _bt_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2124 _bt_list_splice_tail(&($3)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2125 _bt_list_splice_tail(&($4)->tmp_head, &($$)->u._typedef.type_declarators);
2126 }
2127 | TYPEDEF declaration_specifiers type_declarator_list SEMICOLON
2128 {
2129 struct ctf_node *list;
2130
2131 $$ = make_node(scanner, NODE_TYPEDEF);
2132 list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2133 $$->u._typedef.type_specifier_list = list;
2134 _bt_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2135 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
2136 }
2137 | declaration_specifiers TYPEDEF type_declarator_list SEMICOLON
2138 {
2139 struct ctf_node *list;
2140
2141 list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2142 _bt_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2143 $$ = make_node(scanner, NODE_TYPEDEF);
2144 ($$)->u.struct_or_variant_declaration.type_specifier_list = list;
2145 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
2146 }
2147 | TYPEALIAS declaration_specifiers abstract_declarator_list TYPEASSIGN alias_declaration_specifiers alias_abstract_declarator_list SEMICOLON
2148 {
2149 struct ctf_node *list;
2150
2151 $$ = make_node(scanner, NODE_TYPEALIAS);
2152 $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
2153 $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
2154
2155 list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2156 $$->u.typealias.target->u.typealias_target.type_specifier_list = list;
2157 _bt_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2158 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u.typealias.target->u.typealias_target.type_declarators);
2159
2160 list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2161 $$->u.typealias.alias->u.typealias_alias.type_specifier_list = list;
2162 _bt_list_splice_tail(&($5)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2163 _bt_list_splice_tail(&($6)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
2164 }
2165 ;
2166
2167 alias_declaration_specifiers:
2168 CONST
2169 {
2170 struct ctf_node *node;
2171
2172 $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2173 node = make_node(scanner, NODE_TYPE_SPECIFIER);
2174 node->u.type_specifier.type = TYPESPEC_CONST;
2175 bt_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
2176 }
2177 | type_specifier
2178 {
2179 struct ctf_node *node;
2180
2181 $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2182 node = $1;
2183 bt_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
2184 }
2185 | IDENTIFIER
2186 {
2187 struct ctf_node *node;
2188
2189 add_type(scanner, $1);
2190 $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2191 node = make_node(scanner, NODE_TYPE_SPECIFIER);
2192 node->u.type_specifier.type = TYPESPEC_ID_TYPE;
2193 node->u.type_specifier.id_type = yylval.s;
2194 bt_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
2195 }
2196 | alias_declaration_specifiers CONST
2197 {
2198 struct ctf_node *node;
2199
2200 $$ = $1;
2201 node = make_node(scanner, NODE_TYPE_SPECIFIER);
2202 node->u.type_specifier.type = TYPESPEC_CONST;
2203 bt_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
2204 }
2205 | alias_declaration_specifiers type_specifier
2206 {
2207 $$ = $1;
2208 bt_list_add_tail(&($2)->siblings, &($$)->u.type_specifier_list.head);
2209 }
2210 | alias_declaration_specifiers IDENTIFIER
2211 {
2212 struct ctf_node *node;
2213
2214 add_type(scanner, $2);
2215 $$ = $1;
2216 node = make_node(scanner, NODE_TYPE_SPECIFIER);
2217 node->u.type_specifier.type = TYPESPEC_ID_TYPE;
2218 node->u.type_specifier.id_type = yylval.s;
2219 bt_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
2220 }
2221 ;
2222
2223 struct_or_variant_declarator_list:
2224 struct_or_variant_declarator
2225 { $$ = $1; }
2226 | struct_or_variant_declarator_list COMMA struct_or_variant_declarator
2227 {
2228 $$ = $1;
2229 bt_list_add_tail(&($3)->siblings, &($$)->tmp_head);
2230 }
2231 ;
2232
2233 struct_or_variant_declarator:
2234 declarator
2235 { $$ = $1; }
2236 | COLON unary_expression
2237 { $$ = $2; }
2238 | declarator COLON unary_expression
2239 {
2240 $$ = $1;
2241 if (set_parent_node($3, $1))
2242 reparent_error(scanner, "struct_or_variant_declarator");
2243 }
2244 ;
2245
2246 enumerator_list:
2247 enumerator
2248 { $$ = $1; }
2249 | enumerator_list COMMA enumerator
2250 {
2251 $$ = $1;
2252 bt_list_add_tail(&($3)->siblings, &($$)->tmp_head);
2253 }
2254 ;
2255
2256 enumerator:
2257 IDENTIFIER
2258 {
2259 $$ = make_node(scanner, NODE_ENUMERATOR);
2260 $$->u.enumerator.id = $1;
2261 }
2262 | ID_TYPE
2263 {
2264 $$ = make_node(scanner, NODE_ENUMERATOR);
2265 $$->u.enumerator.id = $1;
2266 }
2267 | keywords
2268 {
2269 $$ = make_node(scanner, NODE_ENUMERATOR);
2270 $$->u.enumerator.id = $1;
2271 }
2272 | STRING_LITERAL
2273 {
2274 $$ = make_node(scanner, NODE_ENUMERATOR);
2275 $$->u.enumerator.id = $1;
2276 }
2277 | IDENTIFIER EQUAL unary_expression_or_range
2278 {
2279 $$ = make_node(scanner, NODE_ENUMERATOR);
2280 $$->u.enumerator.id = $1;
2281 bt_list_splice(&($3)->tmp_head, &($$)->u.enumerator.values);
2282 }
2283 | ID_TYPE EQUAL unary_expression_or_range
2284 {
2285 $$ = make_node(scanner, NODE_ENUMERATOR);
2286 $$->u.enumerator.id = $1;
2287 bt_list_splice(&($3)->tmp_head, &($$)->u.enumerator.values);
2288 }
2289 | keywords EQUAL unary_expression_or_range
2290 {
2291 $$ = make_node(scanner, NODE_ENUMERATOR);
2292 $$->u.enumerator.id = $1;
2293 bt_list_splice(&($3)->tmp_head, &($$)->u.enumerator.values);
2294 }
2295 | STRING_LITERAL EQUAL unary_expression_or_range
2296 {
2297 $$ = make_node(scanner, NODE_ENUMERATOR);
2298 $$->u.enumerator.id = $1;
2299 bt_list_splice(&($3)->tmp_head, &($$)->u.enumerator.values);
2300 }
2301 ;
2302
2303 abstract_declarator_list:
2304 abstract_declarator
2305 { $$ = $1; }
2306 | abstract_declarator_list COMMA abstract_declarator
2307 {
2308 $$ = $1;
2309 bt_list_add_tail(&($3)->siblings, &($$)->tmp_head);
2310 }
2311 ;
2312
2313 abstract_declarator:
2314 direct_abstract_declarator
2315 { $$ = $1; }
2316 | pointer direct_abstract_declarator
2317 {
2318 $$ = $2;
2319 bt_list_splice(&($1)->tmp_head, &($$)->u.type_declarator.pointers);
2320 }
2321 ;
2322
2323 direct_abstract_declarator:
2324 /* empty */
2325 {
2326 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2327 $$->u.type_declarator.type = TYPEDEC_ID;
2328 /* id is NULL */
2329 }
2330 | IDENTIFIER
2331 {
2332 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2333 $$->u.type_declarator.type = TYPEDEC_ID;
2334 $$->u.type_declarator.u.id = $1;
2335 }
2336 | LPAREN abstract_declarator RPAREN
2337 {
2338 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2339 $$->u.type_declarator.type = TYPEDEC_NESTED;
2340 $$->u.type_declarator.u.nested.type_declarator = $2;
2341 }
2342 | direct_abstract_declarator LSBRAC unary_expression RSBRAC
2343 {
2344 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2345 $$->u.type_declarator.type = TYPEDEC_NESTED;
2346 $$->u.type_declarator.u.nested.type_declarator = $1;
2347 BT_INIT_LIST_HEAD(&($$)->u.type_declarator.u.nested.length);
2348 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u.type_declarator.u.nested.length);
2349 }
2350 | direct_abstract_declarator LSBRAC RSBRAC
2351 {
2352 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2353 $$->u.type_declarator.type = TYPEDEC_NESTED;
2354 $$->u.type_declarator.u.nested.type_declarator = $1;
2355 $$->u.type_declarator.u.nested.abstract_array = 1;
2356 }
2357 ;
2358
2359 alias_abstract_declarator_list:
2360 alias_abstract_declarator
2361 { $$ = $1; }
2362 | alias_abstract_declarator_list COMMA alias_abstract_declarator
2363 {
2364 $$ = $1;
2365 bt_list_add_tail(&($3)->siblings, &($$)->tmp_head);
2366 }
2367 ;
2368
2369 alias_abstract_declarator:
2370 direct_alias_abstract_declarator
2371 { $$ = $1; }
2372 | pointer direct_alias_abstract_declarator
2373 {
2374 $$ = $2;
2375 bt_list_splice(&($1)->tmp_head, &($$)->u.type_declarator.pointers);
2376 }
2377 ;
2378
2379 direct_alias_abstract_declarator:
2380 /* empty */
2381 {
2382 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2383 $$->u.type_declarator.type = TYPEDEC_ID;
2384 /* id is NULL */
2385 }
2386 | LPAREN alias_abstract_declarator RPAREN
2387 {
2388 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2389 $$->u.type_declarator.type = TYPEDEC_NESTED;
2390 $$->u.type_declarator.u.nested.type_declarator = $2;
2391 }
2392 | direct_alias_abstract_declarator LSBRAC unary_expression RSBRAC
2393 {
2394 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2395 $$->u.type_declarator.type = TYPEDEC_NESTED;
2396 $$->u.type_declarator.u.nested.type_declarator = $1;
2397 BT_INIT_LIST_HEAD(&($$)->u.type_declarator.u.nested.length);
2398 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u.type_declarator.u.nested.length);
2399 }
2400 | direct_alias_abstract_declarator LSBRAC RSBRAC
2401 {
2402 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2403 $$->u.type_declarator.type = TYPEDEC_NESTED;
2404 $$->u.type_declarator.u.nested.type_declarator = $1;
2405 $$->u.type_declarator.u.nested.abstract_array = 1;
2406 }
2407 ;
2408
2409 declarator:
2410 direct_declarator
2411 { $$ = $1; }
2412 | pointer direct_declarator
2413 {
2414 $$ = $2;
2415 bt_list_splice(&($1)->tmp_head, &($$)->u.type_declarator.pointers);
2416 }
2417 ;
2418
2419 direct_declarator:
2420 IDENTIFIER
2421 {
2422 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2423 $$->u.type_declarator.type = TYPEDEC_ID;
2424 $$->u.type_declarator.u.id = $1;
2425 }
2426 | LPAREN declarator RPAREN
2427 {
2428 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2429 $$->u.type_declarator.type = TYPEDEC_NESTED;
2430 $$->u.type_declarator.u.nested.type_declarator = $2;
2431 }
2432 | direct_declarator LSBRAC unary_expression RSBRAC
2433 {
2434 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2435 $$->u.type_declarator.type = TYPEDEC_NESTED;
2436 $$->u.type_declarator.u.nested.type_declarator = $1;
2437 BT_INIT_LIST_HEAD(&($$)->u.type_declarator.u.nested.length);
2438 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u.type_declarator.u.nested.length);
2439 }
2440 ;
2441
2442 type_declarator:
2443 direct_type_declarator
2444 { $$ = $1; }
2445 | pointer direct_type_declarator
2446 {
2447 $$ = $2;
2448 bt_list_splice(&($1)->tmp_head, &($$)->u.type_declarator.pointers);
2449 }
2450 ;
2451
2452 direct_type_declarator:
2453 IDENTIFIER
2454 {
2455 add_type(scanner, $1);
2456 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2457 $$->u.type_declarator.type = TYPEDEC_ID;
2458 $$->u.type_declarator.u.id = $1;
2459 }
2460 | LPAREN type_declarator RPAREN
2461 {
2462 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2463 $$->u.type_declarator.type = TYPEDEC_NESTED;
2464 $$->u.type_declarator.u.nested.type_declarator = $2;
2465 }
2466 | direct_type_declarator LSBRAC unary_expression RSBRAC
2467 {
2468 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2469 $$->u.type_declarator.type = TYPEDEC_NESTED;
2470 $$->u.type_declarator.u.nested.type_declarator = $1;
2471 BT_INIT_LIST_HEAD(&($$)->u.type_declarator.u.nested.length);
2472 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u.type_declarator.u.nested.length);
2473 }
2474 ;
2475
2476 pointer:
2477 STAR
2478 {
2479 $$ = make_node(scanner, NODE_POINTER);
2480 }
2481 | STAR pointer
2482 {
2483 $$ = make_node(scanner, NODE_POINTER);
2484 bt_list_splice(&($2)->tmp_head, &($$)->tmp_head);
2485 }
2486 | STAR type_qualifier_list pointer
2487 {
2488 $$ = make_node(scanner, NODE_POINTER);
2489 $$->u.pointer.const_qualifier = 1;
2490 bt_list_splice(&($3)->tmp_head, &($$)->tmp_head);
2491 }
2492 ;
2493
2494 type_qualifier_list:
2495 /* pointer assumes only const type qualifier */
2496 CONST
2497 | type_qualifier_list CONST
2498 ;
2499
2500 /* 2.3: CTF-specific declarations */
2501
2502 ctf_assignment_expression_list:
2503 ctf_assignment_expression SEMICOLON
2504 { $$ = $1; }
2505 | ctf_assignment_expression_list ctf_assignment_expression SEMICOLON
2506 {
2507 $$ = $1;
2508 bt_list_add_tail(&($2)->siblings, &($$)->tmp_head);
2509 }
2510 ;
2511
2512 ctf_assignment_expression:
2513 unary_expression EQUAL unary_expression
2514 {
2515 /*
2516 * Because we have left and right, cannot use
2517 * set_parent_node.
2518 */
2519 $$ = make_node(scanner, NODE_CTF_EXPRESSION);
2520 _bt_list_splice_tail(&($1)->tmp_head, &($$)->u.ctf_expression.left);
2521 if ($1->u.unary_expression.type != UNARY_STRING)
2522 reparent_error(scanner, "ctf_assignment_expression left expects string");
2523 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u.ctf_expression.right);
2524 }
2525 | unary_expression TYPEASSIGN declaration_specifiers /* Only allow struct */
2526 {
2527 /*
2528 * Because we have left and right, cannot use
2529 * set_parent_node.
2530 */
2531 $$ = make_node(scanner, NODE_CTF_EXPRESSION);
2532 _bt_list_splice_tail(&($1)->tmp_head, &($$)->u.ctf_expression.left);
2533 if ($1->u.unary_expression.type != UNARY_STRING)
2534 reparent_error(scanner, "ctf_assignment_expression left expects string");
2535 bt_list_add_tail(&($3)->siblings, &($$)->u.ctf_expression.right);
2536 }
2537 | declaration_specifiers TYPEDEF declaration_specifiers type_declarator_list
2538 {
2539 struct ctf_node *list;
2540
2541 list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2542 _bt_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2543 _bt_list_splice_tail(&($3)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2544 $$ = make_node(scanner, NODE_TYPEDEF);
2545 ($$)->u.struct_or_variant_declaration.type_specifier_list = list;
2546 _bt_list_splice_tail(&($4)->tmp_head, &($$)->u._typedef.type_declarators);
2547 }
2548 | TYPEDEF declaration_specifiers type_declarator_list
2549 {
2550 struct ctf_node *list;
2551
2552 $$ = make_node(scanner, NODE_TYPEDEF);
2553 list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2554 $$->u._typedef.type_specifier_list = list;
2555 _bt_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2556 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
2557 }
2558 | declaration_specifiers TYPEDEF type_declarator_list
2559 {
2560 struct ctf_node *list;
2561
2562 list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2563 _bt_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2564 $$ = make_node(scanner, NODE_TYPEDEF);
2565 ($$)->u.struct_or_variant_declaration.type_specifier_list = list;
2566 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
2567 }
2568 | TYPEALIAS declaration_specifiers abstract_declarator_list TYPEASSIGN alias_declaration_specifiers alias_abstract_declarator_list
2569 {
2570 struct ctf_node *list;
2571
2572 $$ = make_node(scanner, NODE_TYPEALIAS);
2573 $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
2574 $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
2575
2576 list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2577 $$->u.typealias.target->u.typealias_target.type_specifier_list = list;
2578 _bt_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2579 _bt_list_splice_tail(&($3)->tmp_head, &($$)->u.typealias.target->u.typealias_target.type_declarators);
2580
2581 list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2582 $$->u.typealias.alias->u.typealias_alias.type_specifier_list = list;
2583 _bt_list_splice_tail(&($5)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2584 _bt_list_splice_tail(&($6)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
2585 }
2586 ;
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