Parser test should report AST creation errors
[babeltrace.git] / formats / ctf / metadata / ctf-parser.y
... / ...
CommitLineData
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
20#include <stdio.h>
21#include <unistd.h>
22#include <string.h>
23#include <stdlib.h>
24#include <assert.h>
25#include <glib.h>
26#include <errno.h>
27#include <inttypes.h>
28#include <babeltrace/list.h>
29#include "ctf-scanner.h"
30#include "ctf-parser.h"
31#include "ctf-ast.h"
32
33/* Join two lists, put "add" at the end of "head". */
34static inline void
35_cds_list_splice_tail (struct cds_list_head *add, struct cds_list_head *head)
36{
37 /* Do nothing if the list which gets added is empty. */
38 if (add != add->next) {
39 add->next->prev = head->prev;
40 add->prev->next = head;
41 head->prev->next = add->next;
42 head->prev = add->prev;
43 }
44}
45
46#define printf_dbg(fmt, args...) fprintf(stderr, "%s: " fmt, __func__, ## args)
47
48int yyparse(struct ctf_scanner *scanner);
49int yylex(union YYSTYPE *yyval, struct ctf_scanner *scanner);
50int yylex_init_extra(struct ctf_scanner *scanner, yyscan_t * ptr_yy_globals);
51int yylex_destroy(yyscan_t yyscanner) ;
52void yyset_in(FILE * in_str, yyscan_t scanner);
53
54int yydebug;
55
56struct gc_string {
57 struct cds_list_head gc;
58 size_t alloclen;
59 char s[];
60};
61
62static const char *node_type_to_str[] = {
63 [ NODE_UNKNOWN ] = "NODE_UNKNOWN",
64 [ NODE_ROOT ] = "NODE_ROOT",
65 [ NODE_EVENT ] = "NODE_EVENT",
66 [ NODE_STREAM ] = "NODE_STREAM",
67 [ NODE_TRACE ] = "NODE_TRACE",
68 [ NODE_CTF_EXPRESSION ] = "NODE_CTF_EXPRESSION",
69 [ NODE_UNARY_EXPRESSION ] = "NODE_UNARY_EXPRESSION",
70 [ NODE_TYPEDEF ] = "NODE_TYPEDEF",
71 [ NODE_TYPEALIAS_TARGET ] = "NODE_TYPEALIAS_TARGET",
72 [ NODE_TYPEALIAS_ALIAS ] = "NODE_TYPEALIAS_ALIAS",
73 [ NODE_TYPEALIAS ] = "NODE_TYPEALIAS",
74 [ NODE_TYPE_SPECIFIER ] = "NODE_TYPE_SPECIFIER",
75 [ NODE_POINTER ] = "NODE_POINTER",
76 [ NODE_TYPE_DECLARATOR ] = "NODE_TYPE_DECLARATOR",
77 [ NODE_FLOATING_POINT ] = "NODE_FLOATING_POINT",
78 [ NODE_INTEGER ] = "NODE_INTEGER",
79 [ NODE_STRING ] = "NODE_STRING",
80 [ NODE_ENUMERATOR ] = "NODE_ENUMERATOR",
81 [ NODE_ENUM ] = "NODE_ENUM",
82 [ NODE_STRUCT_OR_VARIANT_DECLARATION ] = "NODE_STRUCT_OR_VARIANT_DECLARATION",
83 [ NODE_VARIANT ] = "NODE_VARIANT",
84 [ NODE_STRUCT ] = "NODE_STRUCT",
85};
86
87const char *node_type(struct ctf_node *node)
88{
89 if (node->type < NR_NODE_TYPES)
90 return node_type_to_str[node->type];
91 else
92 return NULL;
93}
94
95static struct gc_string *gc_string_alloc(struct ctf_scanner *scanner,
96 size_t len)
97{
98 struct gc_string *gstr;
99 size_t alloclen;
100
101 /* TODO: could be faster with find first bit or glib Gstring */
102 /* sizeof long to account for malloc header (int or long ?) */
103 for (alloclen = 8; alloclen < sizeof(long) + sizeof(*gstr) + len;
104 alloclen *= 2);
105
106 gstr = malloc(alloclen);
107 cds_list_add(&gstr->gc, &scanner->allocated_strings);
108 gstr->alloclen = alloclen;
109 return gstr;
110}
111
112/*
113 * note: never use gc_string_append on a string that has external references.
114 * gsrc will be garbage collected immediately, and gstr might be.
115 * Should only be used to append characters to a string literal or constant.
116 */
117struct gc_string *gc_string_append(struct ctf_scanner *scanner,
118 struct gc_string *gstr,
119 struct gc_string *gsrc)
120{
121 size_t newlen = strlen(gsrc->s) + strlen(gstr->s) + 1;
122 size_t alloclen;
123
124 /* TODO: could be faster with find first bit or glib Gstring */
125 /* sizeof long to account for malloc header (int or long ?) */
126 for (alloclen = 8; alloclen < sizeof(long) + sizeof(*gstr) + newlen;
127 alloclen *= 2);
128
129 if (alloclen > gstr->alloclen) {
130 struct gc_string *newgstr;
131
132 newgstr = gc_string_alloc(scanner, newlen);
133 strcpy(newgstr->s, gstr->s);
134 strcat(newgstr->s, gsrc->s);
135 cds_list_del(&gstr->gc);
136 free(gstr);
137 gstr = newgstr;
138 } else {
139 strcat(gstr->s, gsrc->s);
140 }
141 cds_list_del(&gsrc->gc);
142 free(gsrc);
143 return gstr;
144}
145
146void setstring(struct ctf_scanner *scanner, YYSTYPE *lvalp, const char *src)
147{
148 lvalp->gs = gc_string_alloc(scanner, strlen(src) + 1);
149 strcpy(lvalp->gs->s, src);
150}
151
152static void init_scope(struct ctf_scanner_scope *scope,
153 struct ctf_scanner_scope *parent)
154{
155 scope->parent = parent;
156 scope->types = g_hash_table_new_full(g_str_hash, g_str_equal,
157 NULL, NULL);
158}
159
160static void finalize_scope(struct ctf_scanner_scope *scope)
161{
162 g_hash_table_destroy(scope->types);
163}
164
165static void push_scope(struct ctf_scanner *scanner)
166{
167 struct ctf_scanner_scope *ns;
168
169 printf_dbg("push scope\n");
170 ns = malloc(sizeof(struct ctf_scanner_scope));
171 init_scope(ns, scanner->cs);
172 scanner->cs = ns;
173}
174
175static void pop_scope(struct ctf_scanner *scanner)
176{
177 struct ctf_scanner_scope *os;
178
179 printf_dbg("pop scope\n");
180 os = scanner->cs;
181 scanner->cs = os->parent;
182 finalize_scope(os);
183 free(os);
184}
185
186static int lookup_type(struct ctf_scanner_scope *s, const char *id)
187{
188 int ret;
189
190 ret = (int) (long) g_hash_table_lookup(s->types, id);
191 printf_dbg("lookup %p %s %d\n", s, id, ret);
192 return ret;
193}
194
195int is_type(struct ctf_scanner *scanner, const char *id)
196{
197 struct ctf_scanner_scope *it;
198 int ret = 0;
199
200 for (it = scanner->cs; it != NULL; it = it->parent) {
201 if (lookup_type(it, id)) {
202 ret = 1;
203 break;
204 }
205 }
206 printf_dbg("is type %s %d\n", id, ret);
207 return ret;
208}
209
210static void add_type(struct ctf_scanner *scanner, struct gc_string *id)
211{
212 printf_dbg("add type %s\n", id->s);
213 if (lookup_type(scanner->cs, id->s))
214 return;
215 g_hash_table_insert(scanner->cs->types, id->s, id->s);
216}
217
218static struct ctf_node *make_node(struct ctf_scanner *scanner,
219 enum node_type type)
220{
221 struct ctf_ast *ast = ctf_scanner_get_ast(scanner);
222 struct ctf_node *node;
223
224 node = malloc(sizeof(*node));
225 if (!node)
226 return NULL;
227 memset(node, 0, sizeof(*node));
228 node->type = type;
229 CDS_INIT_LIST_HEAD(&node->tmp_head);
230 cds_list_add(&node->gc, &ast->allocated_nodes);
231 cds_list_add(&node->siblings, &node->tmp_head);
232
233 switch (type) {
234 case NODE_ROOT:
235 fprintf(stderr, "[error] %s: trying to create root node\n", __func__);
236 break;
237
238 case NODE_EVENT:
239 CDS_INIT_LIST_HEAD(&node->u.event.declaration_list);
240 break;
241 case NODE_STREAM:
242 CDS_INIT_LIST_HEAD(&node->u.stream.declaration_list);
243 break;
244 case NODE_TRACE:
245 CDS_INIT_LIST_HEAD(&node->u.trace.declaration_list);
246 break;
247
248 case NODE_CTF_EXPRESSION:
249 CDS_INIT_LIST_HEAD(&node->u.ctf_expression.left);
250 CDS_INIT_LIST_HEAD(&node->u.ctf_expression.right);
251 break;
252 case NODE_UNARY_EXPRESSION:
253 break;
254
255 case NODE_TYPEDEF:
256 CDS_INIT_LIST_HEAD(&node->u._typedef.declaration_specifier);
257 CDS_INIT_LIST_HEAD(&node->u._typedef.type_declarators);
258 break;
259 case NODE_TYPEALIAS_TARGET:
260 CDS_INIT_LIST_HEAD(&node->u.typealias_target.declaration_specifier);
261 CDS_INIT_LIST_HEAD(&node->u.typealias_target.type_declarators);
262 break;
263 case NODE_TYPEALIAS_ALIAS:
264 CDS_INIT_LIST_HEAD(&node->u.typealias_alias.declaration_specifier);
265 CDS_INIT_LIST_HEAD(&node->u.typealias_alias.type_declarators);
266 break;
267 case NODE_TYPEALIAS:
268 break;
269
270 case NODE_TYPE_SPECIFIER:
271 break;
272 case NODE_POINTER:
273 break;
274 case NODE_TYPE_DECLARATOR:
275 CDS_INIT_LIST_HEAD(&node->u.type_declarator.pointers);
276 break;
277
278 case NODE_FLOATING_POINT:
279 CDS_INIT_LIST_HEAD(&node->u.floating_point.expressions);
280 break;
281 case NODE_INTEGER:
282 CDS_INIT_LIST_HEAD(&node->u.integer.expressions);
283 break;
284 case NODE_STRING:
285 CDS_INIT_LIST_HEAD(&node->u.string.expressions);
286 break;
287 case NODE_ENUMERATOR:
288 CDS_INIT_LIST_HEAD(&node->u.enumerator.values);
289 break;
290 case NODE_ENUM:
291 CDS_INIT_LIST_HEAD(&node->u._enum.enumerator_list);
292 break;
293 case NODE_STRUCT_OR_VARIANT_DECLARATION:
294 CDS_INIT_LIST_HEAD(&node->u.struct_or_variant_declaration.declaration_specifier);
295 CDS_INIT_LIST_HEAD(&node->u.struct_or_variant_declaration.type_declarators);
296 break;
297 case NODE_VARIANT:
298 CDS_INIT_LIST_HEAD(&node->u.variant.declaration_list);
299 break;
300 case NODE_STRUCT:
301 CDS_INIT_LIST_HEAD(&node->u._struct.declaration_list);
302 break;
303
304 case NODE_UNKNOWN:
305 default:
306 fprintf(stderr, "[error] %s: unknown node type %d\n", __func__,
307 (int) type);
308 break;
309 }
310
311 return node;
312}
313
314static int reparent_ctf_expression(struct ctf_node *node,
315 struct ctf_node *parent)
316{
317 switch (parent->type) {
318 case NODE_EVENT:
319 _cds_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
320 break;
321 case NODE_STREAM:
322 _cds_list_splice_tail(&node->tmp_head, &parent->u.stream.declaration_list);
323 break;
324 case NODE_TRACE:
325 _cds_list_splice_tail(&node->tmp_head, &parent->u.trace.declaration_list);
326 break;
327 case NODE_FLOATING_POINT:
328 _cds_list_splice_tail(&node->tmp_head, &parent->u.floating_point.expressions);
329 break;
330 case NODE_INTEGER:
331 _cds_list_splice_tail(&node->tmp_head, &parent->u.integer.expressions);
332 break;
333 case NODE_STRING:
334 _cds_list_splice_tail(&node->tmp_head, &parent->u.string.expressions);
335 break;
336
337 case NODE_ROOT:
338 case NODE_CTF_EXPRESSION:
339 case NODE_TYPEDEF:
340 case NODE_TYPEALIAS_TARGET:
341 case NODE_TYPEALIAS_ALIAS:
342 case NODE_TYPEALIAS:
343 case NODE_TYPE_SPECIFIER:
344 case NODE_POINTER:
345 case NODE_TYPE_DECLARATOR:
346 case NODE_ENUMERATOR:
347 case NODE_ENUM:
348 case NODE_STRUCT_OR_VARIANT_DECLARATION:
349 case NODE_VARIANT:
350 case NODE_STRUCT:
351 case NODE_UNARY_EXPRESSION:
352 return -EPERM;
353
354 case NODE_UNKNOWN:
355 default:
356 fprintf(stderr, "[error] %s: unknown node type %d\n", __func__,
357 (int) parent->type);
358 return -EINVAL;
359 }
360 return 0;
361}
362
363static int reparent_typedef(struct ctf_node *node, struct ctf_node *parent)
364{
365 switch (parent->type) {
366 case NODE_ROOT:
367 _cds_list_splice_tail(&node->tmp_head, &parent->u.root._typedef);
368 break;
369 case NODE_EVENT:
370 _cds_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
371 break;
372 case NODE_STREAM:
373 _cds_list_splice_tail(&node->tmp_head, &parent->u.stream.declaration_list);
374 break;
375 case NODE_TRACE:
376 _cds_list_splice_tail(&node->tmp_head, &parent->u.trace.declaration_list);
377 break;
378 case NODE_VARIANT:
379 _cds_list_splice_tail(&node->tmp_head, &parent->u.variant.declaration_list);
380 break;
381 case NODE_STRUCT:
382 _cds_list_splice_tail(&node->tmp_head, &parent->u._struct.declaration_list);
383 break;
384
385 case NODE_FLOATING_POINT:
386 case NODE_INTEGER:
387 case NODE_STRING:
388 case NODE_CTF_EXPRESSION:
389 case NODE_TYPEDEF:
390 case NODE_TYPEALIAS_TARGET:
391 case NODE_TYPEALIAS_ALIAS:
392 case NODE_TYPEALIAS:
393 case NODE_TYPE_SPECIFIER:
394 case NODE_POINTER:
395 case NODE_TYPE_DECLARATOR:
396 case NODE_ENUMERATOR:
397 case NODE_ENUM:
398 case NODE_STRUCT_OR_VARIANT_DECLARATION:
399 case NODE_UNARY_EXPRESSION:
400 return -EPERM;
401
402 case NODE_UNKNOWN:
403 default:
404 fprintf(stderr, "[error] %s: unknown node type %d\n", __func__,
405 (int) parent->type);
406 return -EINVAL;
407 }
408 return 0;
409}
410
411static int reparent_typealias(struct ctf_node *node, struct ctf_node *parent)
412{
413 switch (parent->type) {
414 case NODE_ROOT:
415 _cds_list_splice_tail(&node->tmp_head, &parent->u.root.typealias);
416 break;
417 case NODE_EVENT:
418 _cds_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
419 break;
420 case NODE_STREAM:
421 _cds_list_splice_tail(&node->tmp_head, &parent->u.stream.declaration_list);
422 break;
423 case NODE_TRACE:
424 _cds_list_splice_tail(&node->tmp_head, &parent->u.trace.declaration_list);
425 break;
426 case NODE_VARIANT:
427 _cds_list_splice_tail(&node->tmp_head, &parent->u.variant.declaration_list);
428 break;
429 case NODE_STRUCT:
430 _cds_list_splice_tail(&node->tmp_head, &parent->u._struct.declaration_list);
431 break;
432
433 case NODE_FLOATING_POINT:
434 case NODE_INTEGER:
435 case NODE_STRING:
436 case NODE_CTF_EXPRESSION:
437 case NODE_TYPEDEF:
438 case NODE_TYPEALIAS_TARGET:
439 case NODE_TYPEALIAS_ALIAS:
440 case NODE_TYPEALIAS:
441 case NODE_TYPE_SPECIFIER:
442 case NODE_POINTER:
443 case NODE_TYPE_DECLARATOR:
444 case NODE_ENUMERATOR:
445 case NODE_ENUM:
446 case NODE_STRUCT_OR_VARIANT_DECLARATION:
447 case NODE_UNARY_EXPRESSION:
448 return -EPERM;
449
450 case NODE_UNKNOWN:
451 default:
452 fprintf(stderr, "[error] %s: unknown node type %d\n", __func__,
453 (int) parent->type);
454 return -EINVAL;
455 }
456 return 0;
457}
458
459static int reparent_type_specifier(struct ctf_node *node,
460 struct ctf_node *parent)
461{
462 switch (parent->type) {
463 case NODE_ROOT:
464 _cds_list_splice_tail(&node->tmp_head, &parent->u.root.declaration_specifier);
465 break;
466 case NODE_EVENT:
467 _cds_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
468 break;
469 case NODE_STREAM:
470 _cds_list_splice_tail(&node->tmp_head, &parent->u.stream.declaration_list);
471 break;
472 case NODE_TRACE:
473 _cds_list_splice_tail(&node->tmp_head, &parent->u.trace.declaration_list);
474 break;
475 case NODE_VARIANT:
476 _cds_list_splice_tail(&node->tmp_head, &parent->u.variant.declaration_list);
477 break;
478 case NODE_STRUCT:
479 _cds_list_splice_tail(&node->tmp_head, &parent->u._struct.declaration_list);
480 break;
481 case NODE_TYPEDEF:
482 _cds_list_splice_tail(&node->tmp_head, &parent->u._typedef.declaration_specifier);
483 break;
484 case NODE_TYPEALIAS_TARGET:
485 _cds_list_splice_tail(&node->tmp_head, &parent->u.typealias_target.declaration_specifier);
486 break;
487 case NODE_TYPEALIAS_ALIAS:
488 _cds_list_splice_tail(&node->tmp_head, &parent->u.typealias_alias.declaration_specifier);
489 break;
490 case NODE_TYPE_DECLARATOR:
491 parent->u.type_declarator.type = TYPEDEC_NESTED;
492 parent->u.type_declarator.u.nested.length = node;
493 break;
494 case NODE_ENUM:
495 parent->u._enum.container_type = node;
496 break;
497 case NODE_STRUCT_OR_VARIANT_DECLARATION:
498 _cds_list_splice_tail(&node->tmp_head, &parent->u.struct_or_variant_declaration.declaration_specifier);
499 break;
500 case NODE_TYPEALIAS:
501 case NODE_FLOATING_POINT:
502 case NODE_INTEGER:
503 case NODE_STRING:
504 case NODE_CTF_EXPRESSION:
505 case NODE_TYPE_SPECIFIER:
506 case NODE_POINTER:
507 case NODE_ENUMERATOR:
508 case NODE_UNARY_EXPRESSION:
509 return -EPERM;
510
511 case NODE_UNKNOWN:
512 default:
513 fprintf(stderr, "[error] %s: unknown node type %d\n", __func__,
514 (int) parent->type);
515 return -EINVAL;
516 }
517 return 0;
518}
519
520static int reparent_type_declarator(struct ctf_node *node,
521 struct ctf_node *parent)
522{
523 switch (parent->type) {
524 case NODE_TYPE_DECLARATOR:
525 parent->u.type_declarator.type = TYPEDEC_NESTED;
526 parent->u.type_declarator.u.nested.type_declarator = node;
527 break;
528 case NODE_STRUCT_OR_VARIANT_DECLARATION:
529 _cds_list_splice_tail(&node->tmp_head, &parent->u.struct_or_variant_declaration.type_declarators);
530 break;
531 case NODE_TYPEDEF:
532 _cds_list_splice_tail(&node->tmp_head, &parent->u._typedef.type_declarators);
533 break;
534 case NODE_TYPEALIAS_TARGET:
535 _cds_list_splice_tail(&node->tmp_head, &parent->u.typealias_target.type_declarators);
536 break;
537 case NODE_TYPEALIAS_ALIAS:
538 _cds_list_splice_tail(&node->tmp_head, &parent->u.typealias_alias.type_declarators);
539 break;
540
541 case NODE_ROOT:
542 case NODE_EVENT:
543 case NODE_STREAM:
544 case NODE_TRACE:
545 case NODE_VARIANT:
546 case NODE_STRUCT:
547 case NODE_TYPEALIAS:
548 case NODE_ENUM:
549 case NODE_FLOATING_POINT:
550 case NODE_INTEGER:
551 case NODE_STRING:
552 case NODE_CTF_EXPRESSION:
553 case NODE_TYPE_SPECIFIER:
554 case NODE_POINTER:
555 case NODE_ENUMERATOR:
556 case NODE_UNARY_EXPRESSION:
557 return -EPERM;
558
559 case NODE_UNKNOWN:
560 default:
561 fprintf(stderr, "[error] %s: unknown node type %d\n", __func__,
562 (int) parent->type);
563 return -EINVAL;
564 }
565 return 0;
566}
567
568/*
569 * set_parent_node
570 *
571 * Link node to parent. Returns 0 on success, -EPERM if it is not permitted to
572 * create the link declared by the input, -ENOENT if node or parent is NULL,
573 * -EINVAL if there is an internal structure problem.
574 */
575static int set_parent_node(struct ctf_node *node,
576 struct ctf_node *parent)
577{
578 if (!node || !parent)
579 return -ENOENT;
580
581 /* Note: Linking to parent will be done only by an external visitor */
582
583 switch (node->type) {
584 case NODE_ROOT:
585 fprintf(stderr, "[error] %s: trying to reparent root node\n", __func__);
586 return -EINVAL;
587
588 case NODE_EVENT:
589 if (parent->type == NODE_ROOT) {
590 _cds_list_splice_tail(&node->tmp_head, &parent->u.root.event);
591 } else
592 return -EPERM;
593 break;
594 case NODE_STREAM:
595 if (parent->type == NODE_ROOT) {
596 _cds_list_splice_tail(&node->tmp_head, &parent->u.root.stream);
597 } else
598 return -EPERM;
599 break;
600 case NODE_TRACE:
601 if (parent->type == NODE_ROOT) {
602 _cds_list_splice_tail(&node->tmp_head, &parent->u.root.trace);
603 } else
604 return -EPERM;
605 break;
606
607 case NODE_CTF_EXPRESSION:
608 return reparent_ctf_expression(node, parent);
609 case NODE_UNARY_EXPRESSION:
610 if (parent->type == NODE_TYPE_DECLARATOR)
611 parent->u.type_declarator.bitfield_len = node;
612 else
613 return -EPERM;
614 break;
615
616 case NODE_TYPEDEF:
617 return reparent_typedef(node, parent);
618 case NODE_TYPEALIAS_TARGET:
619 if (parent->type == NODE_TYPEALIAS)
620 parent->u.typealias.target = node;
621 else
622 return -EINVAL;
623 case NODE_TYPEALIAS_ALIAS:
624 if (parent->type == NODE_TYPEALIAS)
625 parent->u.typealias.alias = node;
626 else
627 return -EINVAL;
628 case NODE_TYPEALIAS:
629 return reparent_typealias(node, parent);
630
631 case NODE_POINTER:
632 if (parent->type == NODE_TYPE_DECLARATOR) {
633 _cds_list_splice_tail(&node->tmp_head, &parent->u.type_declarator.pointers);
634 } else
635 return -EPERM;
636 break;
637 case NODE_TYPE_DECLARATOR:
638 return reparent_type_declarator(node, parent);
639
640 case NODE_TYPE_SPECIFIER:
641 case NODE_FLOATING_POINT:
642 case NODE_INTEGER:
643 case NODE_STRING:
644 case NODE_ENUM:
645 case NODE_VARIANT:
646 case NODE_STRUCT:
647 return reparent_type_specifier(node, parent);
648
649 case NODE_ENUMERATOR:
650 if (parent->type == NODE_ENUM) {
651 _cds_list_splice_tail(&node->tmp_head, &parent->u._enum.enumerator_list);
652 } else
653 return -EPERM;
654 break;
655 case NODE_STRUCT_OR_VARIANT_DECLARATION:
656 switch (parent->type) {
657 case NODE_STRUCT:
658 _cds_list_splice_tail(&node->tmp_head, &parent->u._struct.declaration_list);
659 break;
660 case NODE_VARIANT:
661 _cds_list_splice_tail(&node->tmp_head, &parent->u.variant.declaration_list);
662 break;
663 default:
664 return -EINVAL;
665 }
666 break;
667
668 case NODE_UNKNOWN:
669 default:
670 fprintf(stderr, "[error] %s: unknown node type %d\n", __func__,
671 (int) parent->type);
672 return -EINVAL;
673 }
674 return 0;
675}
676
677void yyerror(struct ctf_scanner *scanner, const char *str)
678{
679 fprintf(stderr, "error %s\n", str);
680}
681
682int yywrap(void)
683{
684 return 1;
685}
686
687#define reparent_error(scanner, str) \
688do { \
689 yyerror(scanner, YY_("reparent_error: " str "\n")); \
690 YYERROR; \
691} while (0)
692
693static void free_strings(struct cds_list_head *list)
694{
695 struct gc_string *gstr, *tmp;
696
697 cds_list_for_each_entry_safe(gstr, tmp, list, gc)
698 free(gstr);
699}
700
701static struct ctf_ast *ctf_ast_alloc(void)
702{
703 struct ctf_ast *ast;
704
705 ast = malloc(sizeof(*ast));
706 if (!ast)
707 return NULL;
708 memset(ast, 0, sizeof(*ast));
709 CDS_INIT_LIST_HEAD(&ast->allocated_nodes);
710 ast->root.type = NODE_ROOT;
711 CDS_INIT_LIST_HEAD(&ast->root.tmp_head);
712 CDS_INIT_LIST_HEAD(&ast->root.u.root._typedef);
713 CDS_INIT_LIST_HEAD(&ast->root.u.root.typealias);
714 CDS_INIT_LIST_HEAD(&ast->root.u.root.declaration_specifier);
715 CDS_INIT_LIST_HEAD(&ast->root.u.root.trace);
716 CDS_INIT_LIST_HEAD(&ast->root.u.root.stream);
717 CDS_INIT_LIST_HEAD(&ast->root.u.root.event);
718 return ast;
719}
720
721static void ctf_ast_free(struct ctf_ast *ast)
722{
723 struct ctf_node *node, *tmp;
724
725 cds_list_for_each_entry_safe(node, tmp, &ast->allocated_nodes, gc)
726 free(node);
727}
728
729int ctf_scanner_append_ast(struct ctf_scanner *scanner)
730{
731 return yyparse(scanner);
732}
733
734struct ctf_scanner *ctf_scanner_alloc(FILE *input)
735{
736 struct ctf_scanner *scanner;
737 int ret;
738
739 scanner = malloc(sizeof(*scanner));
740 if (!scanner)
741 return NULL;
742 memset(scanner, 0, sizeof(*scanner));
743
744 ret = yylex_init_extra(scanner, &scanner->scanner);
745 if (ret) {
746 fprintf(stderr, "yylex_init error\n");
747 goto cleanup_scanner;
748 }
749 yyset_in(input, scanner);
750
751 scanner->ast = ctf_ast_alloc();
752 if (!scanner->ast)
753 goto cleanup_lexer;
754 init_scope(&scanner->root_scope, NULL);
755 scanner->cs = &scanner->root_scope;
756 CDS_INIT_LIST_HEAD(&scanner->allocated_strings);
757
758 return scanner;
759
760cleanup_lexer:
761 ret = yylex_destroy(scanner->scanner);
762 if (!ret)
763 fprintf(stderr, "yylex_destroy error\n");
764cleanup_scanner:
765 free(scanner);
766 return NULL;
767}
768
769void ctf_scanner_free(struct ctf_scanner *scanner)
770{
771 int ret;
772
773 finalize_scope(&scanner->root_scope);
774 free_strings(&scanner->allocated_strings);
775 ctf_ast_free(scanner->ast);
776 ret = yylex_destroy(scanner->scanner);
777 if (ret)
778 fprintf(stderr, "yylex_destroy error\n");
779 free(scanner);
780}
781
782%}
783
784%define api.pure
785 /* %locations */
786%parse-param {struct ctf_scanner *scanner}
787%lex-param {struct ctf_scanner *scanner}
788%start file
789%token CHARACTER_CONSTANT_START SQUOTE STRING_LITERAL_START DQUOTE ESCSEQ CHAR_STRING_TOKEN LSBRAC RSBRAC LPAREN RPAREN LBRAC RBRAC RARROW STAR PLUS MINUS LT GT TYPEASSIGN COLON SEMICOLON DOTDOTDOT DOT EQUAL COMMA CONST CHAR DOUBLE ENUM EVENT FLOATING_POINT FLOAT INTEGER INT LONG SHORT SIGNED STREAM STRING STRUCT TRACE TYPEALIAS TYPEDEF UNSIGNED VARIANT VOID _BOOL _COMPLEX _IMAGINARY DECIMAL_CONSTANT OCTAL_CONSTANT HEXADECIMAL_CONSTANT
790%token <gs> IDENTIFIER ID_TYPE
791%token ERROR
792%union
793{
794 long long ll;
795 char c;
796 struct gc_string *gs;
797 struct ctf_node *n;
798}
799
800%type <gs> keywords
801%type <gs> s_char s_char_sequence c_char c_char_sequence
802
803%type <n> postfix_expression unary_expression unary_expression_or_range
804
805%type <n> declaration
806%type <n> event_declaration
807%type <n> stream_declaration
808%type <n> trace_declaration
809%type <n> declaration_specifiers
810
811%type <n> type_declarator_list
812%type <n> abstract_type_declarator_list
813%type <n> type_specifier
814%type <n> struct_type_specifier
815%type <n> variant_type_specifier
816%type <n> type_specifier_or_integer_constant
817%type <n> enum_type_specifier
818%type <n> struct_or_variant_declaration_list
819%type <n> struct_or_variant_declaration
820%type <n> specifier_qualifier_list
821%type <n> struct_or_variant_declarator_list
822%type <n> struct_or_variant_declarator
823%type <n> enumerator_list
824%type <n> enumerator
825%type <n> abstract_declarator_list
826%type <n> abstract_declarator
827%type <n> direct_abstract_declarator
828%type <n> declarator
829%type <n> direct_declarator
830%type <n> type_declarator
831%type <n> direct_type_declarator
832%type <n> abstract_type_declarator
833%type <n> direct_abstract_type_declarator
834%type <n> pointer
835%type <n> ctf_assignment_expression_list
836%type <n> ctf_assignment_expression
837
838%%
839
840file:
841 declaration
842 {
843 if (set_parent_node($1, &ctf_scanner_get_ast(scanner)->root))
844 reparent_error(scanner, "error reparenting to root");
845 }
846 | file declaration
847 {
848 if (set_parent_node($2, &ctf_scanner_get_ast(scanner)->root))
849 reparent_error(scanner, "error reparenting to root");
850 }
851 ;
852
853keywords:
854 VOID
855 { $$ = yylval.gs; }
856 | CHAR
857 { $$ = yylval.gs; }
858 | SHORT
859 { $$ = yylval.gs; }
860 | INT
861 { $$ = yylval.gs; }
862 | LONG
863 { $$ = yylval.gs; }
864 | FLOAT
865 { $$ = yylval.gs; }
866 | DOUBLE
867 { $$ = yylval.gs; }
868 | SIGNED
869 { $$ = yylval.gs; }
870 | UNSIGNED
871 { $$ = yylval.gs; }
872 | _BOOL
873 { $$ = yylval.gs; }
874 | _COMPLEX
875 { $$ = yylval.gs; }
876 | FLOATING_POINT
877 { $$ = yylval.gs; }
878 | INTEGER
879 { $$ = yylval.gs; }
880 | STRING
881 { $$ = yylval.gs; }
882 | ENUM
883 { $$ = yylval.gs; }
884 | VARIANT
885 { $$ = yylval.gs; }
886 | STRUCT
887 { $$ = yylval.gs; }
888 | CONST
889 { $$ = yylval.gs; }
890 | TYPEDEF
891 { $$ = yylval.gs; }
892 | EVENT
893 { $$ = yylval.gs; }
894 | STREAM
895 { $$ = yylval.gs; }
896 | TRACE
897 { $$ = yylval.gs; }
898 ;
899
900/* 1.5 Constants */
901
902c_char_sequence:
903 c_char
904 { $$ = $1; }
905 | c_char_sequence c_char
906 { $$ = gc_string_append(scanner, $1, $2); }
907 ;
908
909c_char:
910 CHAR_STRING_TOKEN
911 { $$ = yylval.gs; }
912 | ESCSEQ
913 {
914 reparent_error(scanner, "escape sequences not supported yet");
915 }
916 ;
917
918/* 1.6 String literals */
919
920s_char_sequence:
921 s_char
922 { $$ = $1; }
923 | s_char_sequence s_char
924 { $$ = gc_string_append(scanner, $1, $2); }
925 ;
926
927s_char:
928 CHAR_STRING_TOKEN
929 { $$ = yylval.gs; }
930 | ESCSEQ
931 {
932 reparent_error(scanner, "escape sequences not supported yet");
933 }
934 ;
935
936/* 2: Phrase structure grammar */
937
938postfix_expression:
939 IDENTIFIER
940 {
941 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
942 $$->u.unary_expression.type = UNARY_STRING;
943 $$->u.unary_expression.u.string = yylval.gs->s;
944 }
945 | ID_TYPE
946 {
947 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
948 $$->u.unary_expression.type = UNARY_STRING;
949 $$->u.unary_expression.u.string = yylval.gs->s;
950 }
951 | keywords
952 {
953 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
954 $$->u.unary_expression.type = UNARY_STRING;
955 $$->u.unary_expression.u.string = yylval.gs->s;
956 }
957
958 | DECIMAL_CONSTANT
959 {
960 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
961 $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
962 sscanf(yylval.gs->s, "%" PRIu64,
963 &$$->u.unary_expression.u.unsigned_constant);
964 }
965 | OCTAL_CONSTANT
966 {
967 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
968 $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
969 sscanf(yylval.gs->s, "0%" PRIo64,
970 &$$->u.unary_expression.u.unsigned_constant);
971 }
972 | HEXADECIMAL_CONSTANT
973 {
974 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
975 $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
976 sscanf(yylval.gs->s, "0x%" PRIx64,
977 &$$->u.unary_expression.u.unsigned_constant);
978 }
979 | STRING_LITERAL_START DQUOTE
980 {
981 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
982 $$->u.unary_expression.type = UNARY_STRING;
983 $$->u.unary_expression.u.string = "";
984 }
985 | STRING_LITERAL_START s_char_sequence DQUOTE
986 {
987 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
988 $$->u.unary_expression.type = UNARY_STRING;
989 $$->u.unary_expression.u.string = $2->s;
990 }
991 | CHARACTER_CONSTANT_START c_char_sequence SQUOTE
992 {
993 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
994 $$->u.unary_expression.type = UNARY_STRING;
995 $$->u.unary_expression.u.string = $2->s;
996 }
997 | LPAREN unary_expression RPAREN
998 {
999 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1000 $$->u.unary_expression.type = UNARY_NESTED;
1001 $$->u.unary_expression.u.nested_exp = $2;
1002 }
1003 | postfix_expression LSBRAC unary_expression RSBRAC
1004 {
1005 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1006 $$->u.unary_expression.type = UNARY_SBRAC;
1007 $$->u.unary_expression.u.sbrac_exp = $3;
1008 cds_list_splice(&($1)->tmp_head, &($$)->tmp_head);
1009 cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1010 }
1011 | postfix_expression DOT IDENTIFIER
1012 {
1013 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1014 $$->u.unary_expression.type = UNARY_STRING;
1015 $$->u.unary_expression.u.string = yylval.gs->s;
1016 $$->u.unary_expression.link = UNARY_DOTLINK;
1017 cds_list_splice(&($1)->tmp_head, &($$)->tmp_head);
1018 cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1019 }
1020 | postfix_expression DOT ID_TYPE
1021 {
1022 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1023 $$->u.unary_expression.type = UNARY_STRING;
1024 $$->u.unary_expression.u.string = yylval.gs->s;
1025 $$->u.unary_expression.link = UNARY_DOTLINK;
1026 cds_list_splice(&($1)->tmp_head, &($$)->tmp_head);
1027 cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1028 }
1029 | postfix_expression RARROW IDENTIFIER
1030 {
1031 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1032 $$->u.unary_expression.type = UNARY_STRING;
1033 $$->u.unary_expression.u.string = yylval.gs->s;
1034 $$->u.unary_expression.link = UNARY_ARROWLINK;
1035 cds_list_splice(&($1)->tmp_head, &($$)->tmp_head);
1036 cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1037 }
1038 | postfix_expression RARROW ID_TYPE
1039 {
1040 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1041 $$->u.unary_expression.type = UNARY_STRING;
1042 $$->u.unary_expression.u.string = yylval.gs->s;
1043 $$->u.unary_expression.link = UNARY_ARROWLINK;
1044 cds_list_splice(&($1)->tmp_head, &($$)->tmp_head);
1045 cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1046 }
1047 ;
1048
1049unary_expression:
1050 postfix_expression
1051 { $$ = $1; }
1052 | PLUS postfix_expression
1053 { $$ = $2; }
1054 | MINUS postfix_expression
1055 {
1056 $$ = $2;
1057 if ($$->u.unary_expression.type != UNARY_SIGNED_CONSTANT
1058 && $$->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT)
1059 reparent_error(scanner, "expecting numeric constant");
1060
1061 if ($$->u.unary_expression.type == UNARY_UNSIGNED_CONSTANT) {
1062 $$->u.unary_expression.type = UNARY_SIGNED_CONSTANT;
1063 $$->u.unary_expression.u.signed_constant =
1064 -($$->u.unary_expression.u.unsigned_constant);
1065 } else {
1066 $$->u.unary_expression.u.signed_constant =
1067 -($$->u.unary_expression.u.signed_constant);
1068 }
1069 }
1070 ;
1071
1072unary_expression_or_range:
1073 unary_expression DOTDOTDOT unary_expression
1074 {
1075 $$ = $1;
1076 _cds_list_splice_tail(&($3)->tmp_head, &($$)->tmp_head);
1077 $3->u.unary_expression.link = UNARY_DOTDOTDOT;
1078 }
1079 | unary_expression
1080 { $$ = $1; }
1081 ;
1082
1083/* 2.2: Declarations */
1084
1085declaration:
1086 declaration_specifiers SEMICOLON
1087 { $$ = $1; }
1088 | event_declaration
1089 { $$ = $1; }
1090 | stream_declaration
1091 { $$ = $1; }
1092 | trace_declaration
1093 { $$ = $1; }
1094 | declaration_specifiers TYPEDEF declaration_specifiers type_declarator_list SEMICOLON
1095 {
1096 $$ = make_node(scanner, NODE_TYPEDEF);
1097 _cds_list_splice_tail(&($1)->tmp_head, &($$)->u._typedef.declaration_specifier);
1098 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.declaration_specifier);
1099 _cds_list_splice_tail(&($4)->tmp_head, &($$)->u._typedef.type_declarators);
1100 }
1101 | TYPEDEF declaration_specifiers type_declarator_list SEMICOLON
1102 {
1103 $$ = make_node(scanner, NODE_TYPEDEF);
1104 _cds_list_splice_tail(&($2)->tmp_head, &($$)->u._typedef.declaration_specifier);
1105 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
1106 }
1107 | declaration_specifiers TYPEDEF type_declarator_list SEMICOLON
1108 {
1109 $$ = make_node(scanner, NODE_TYPEDEF);
1110 _cds_list_splice_tail(&($1)->tmp_head, &($$)->u._typedef.declaration_specifier);
1111 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
1112 }
1113 | TYPEALIAS declaration_specifiers abstract_declarator_list COLON declaration_specifiers abstract_type_declarator_list SEMICOLON
1114 {
1115 $$ = make_node(scanner, NODE_TYPEALIAS);
1116 $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
1117 $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
1118 _cds_list_splice_tail(&($2)->tmp_head, &($$)->u.typealias.target->u.typealias_target.declaration_specifier);
1119 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.typealias.target->u.typealias_target.type_declarators);
1120 _cds_list_splice_tail(&($5)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.declaration_specifier);
1121 _cds_list_splice_tail(&($6)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
1122 }
1123 | TYPEALIAS declaration_specifiers abstract_declarator_list COLON type_declarator_list SEMICOLON
1124 {
1125 $$ = make_node(scanner, NODE_TYPEALIAS);
1126 $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
1127 $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
1128 _cds_list_splice_tail(&($2)->tmp_head, &($$)->u.typealias.target->u.typealias_target.declaration_specifier);
1129 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.declaration_specifier);
1130 _cds_list_splice_tail(&($5)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
1131 }
1132 ;
1133
1134event_declaration:
1135 event_declaration_begin event_declaration_end
1136 {
1137 $$ = make_node(scanner, NODE_EVENT);
1138 }
1139 | event_declaration_begin ctf_assignment_expression_list event_declaration_end
1140 {
1141 $$ = make_node(scanner, NODE_EVENT);
1142 if (set_parent_node($2, $$))
1143 reparent_error(scanner, "event_declaration");
1144 }
1145 ;
1146
1147event_declaration_begin:
1148 EVENT LBRAC
1149 { push_scope(scanner); }
1150 ;
1151
1152event_declaration_end:
1153 RBRAC SEMICOLON
1154 { pop_scope(scanner); }
1155 ;
1156
1157
1158stream_declaration:
1159 stream_declaration_begin stream_declaration_end
1160 {
1161 $$ = make_node(scanner, NODE_STREAM);
1162 }
1163 | stream_declaration_begin ctf_assignment_expression_list stream_declaration_end
1164 {
1165 $$ = make_node(scanner, NODE_STREAM);
1166 if (set_parent_node($2, $$))
1167 reparent_error(scanner, "stream_declaration");
1168 }
1169 ;
1170
1171stream_declaration_begin:
1172 STREAM LBRAC
1173 { push_scope(scanner); }
1174 ;
1175
1176stream_declaration_end:
1177 RBRAC SEMICOLON
1178 { pop_scope(scanner); }
1179 ;
1180
1181
1182trace_declaration:
1183 trace_declaration_begin trace_declaration_end
1184 {
1185 $$ = make_node(scanner, NODE_TRACE);
1186 }
1187 | trace_declaration_begin ctf_assignment_expression_list trace_declaration_end
1188 {
1189 $$ = make_node(scanner, NODE_TRACE);
1190 if (set_parent_node($2, $$))
1191 reparent_error(scanner, "trace_declaration");
1192 }
1193 ;
1194
1195trace_declaration_begin:
1196 TRACE LBRAC
1197 { push_scope(scanner); }
1198 ;
1199
1200trace_declaration_end:
1201 RBRAC SEMICOLON
1202 { pop_scope(scanner); }
1203 ;
1204
1205declaration_specifiers:
1206 CONST
1207 {
1208 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1209 $$->u.type_specifier.type = TYPESPEC_CONST;
1210 }
1211 | type_specifier
1212 { $$ = $1; }
1213 | declaration_specifiers CONST
1214 {
1215 struct ctf_node *node;
1216
1217 $$ = $1;
1218 node = make_node(scanner, NODE_TYPE_SPECIFIER);
1219 node->u.type_specifier.type = TYPESPEC_CONST;
1220 cds_list_add_tail(&node->siblings, &($$)->tmp_head);
1221 }
1222 | declaration_specifiers type_specifier
1223 {
1224 $$ = $1;
1225 cds_list_add_tail(&($2)->siblings, &($$)->tmp_head);
1226 }
1227 ;
1228
1229type_declarator_list:
1230 type_declarator
1231 { $$ = $1; }
1232 | type_declarator_list COMMA type_declarator
1233 {
1234 $$ = $1;
1235 cds_list_add_tail(&($3)->siblings, &($$)->tmp_head);
1236 }
1237 ;
1238
1239abstract_type_declarator_list:
1240 abstract_type_declarator
1241 { $$ = $1; }
1242 | abstract_type_declarator_list COMMA abstract_type_declarator
1243 {
1244 $$ = $1;
1245 cds_list_add_tail(&($3)->siblings, &($$)->tmp_head);
1246 }
1247 ;
1248
1249type_specifier:
1250 VOID
1251 {
1252 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1253 $$->u.type_specifier.type = TYPESPEC_VOID;
1254 }
1255 | CHAR
1256 {
1257 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1258 $$->u.type_specifier.type = TYPESPEC_CHAR;
1259 }
1260 | SHORT
1261 {
1262 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1263 $$->u.type_specifier.type = TYPESPEC_SHORT;
1264 }
1265 | INT
1266 {
1267 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1268 $$->u.type_specifier.type = TYPESPEC_INT;
1269 }
1270 | LONG
1271 {
1272 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1273 $$->u.type_specifier.type = TYPESPEC_LONG;
1274 }
1275 | FLOAT
1276 {
1277 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1278 $$->u.type_specifier.type = TYPESPEC_FLOAT;
1279 }
1280 | DOUBLE
1281 {
1282 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1283 $$->u.type_specifier.type = TYPESPEC_DOUBLE;
1284 }
1285 | SIGNED
1286 {
1287 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1288 $$->u.type_specifier.type = TYPESPEC_SIGNED;
1289 }
1290 | UNSIGNED
1291 {
1292 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1293 $$->u.type_specifier.type = TYPESPEC_UNSIGNED;
1294 }
1295 | _BOOL
1296 {
1297 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1298 $$->u.type_specifier.type = TYPESPEC_BOOL;
1299 }
1300 | _COMPLEX
1301 {
1302 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1303 $$->u.type_specifier.type = TYPESPEC_COMPLEX;
1304 }
1305 | ID_TYPE
1306 {
1307 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1308 $$->u.type_specifier.type = TYPESPEC_ID_TYPE;
1309 $$->u.type_specifier.id_type = yylval.gs->s;
1310 }
1311 | FLOATING_POINT LBRAC RBRAC
1312 {
1313 $$ = make_node(scanner, NODE_FLOATING_POINT);
1314 }
1315 | FLOATING_POINT LBRAC ctf_assignment_expression_list RBRAC
1316 {
1317 $$ = make_node(scanner, NODE_FLOATING_POINT);
1318 if (set_parent_node($3, $$))
1319 reparent_error(scanner, "floating point reparent error");
1320 }
1321 | INTEGER LBRAC RBRAC
1322 {
1323 $$ = make_node(scanner, NODE_INTEGER);
1324 }
1325 | INTEGER LBRAC ctf_assignment_expression_list RBRAC
1326 {
1327 $$ = make_node(scanner, NODE_INTEGER);
1328 if (set_parent_node($3, $$))
1329 reparent_error(scanner, "integer reparent error");
1330 }
1331 | STRING LBRAC RBRAC
1332 {
1333 $$ = make_node(scanner, NODE_STRING);
1334 }
1335 | STRING LBRAC ctf_assignment_expression_list RBRAC
1336 {
1337 $$ = make_node(scanner, NODE_STRING);
1338 if (set_parent_node($3, $$))
1339 reparent_error(scanner, "string reparent error");
1340 }
1341 | ENUM enum_type_specifier
1342 { $$ = $2; }
1343 | VARIANT variant_type_specifier
1344 { $$ = $2; }
1345 | STRUCT struct_type_specifier
1346 { $$ = $2; }
1347 ;
1348
1349struct_type_specifier:
1350 struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end
1351 {
1352 $$ = make_node(scanner, NODE_STRUCT);
1353 if (set_parent_node($2, $$))
1354 reparent_error(scanner, "struct reparent error");
1355 }
1356 | IDENTIFIER struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end
1357 {
1358 $$ = make_node(scanner, NODE_STRUCT);
1359 $$->u._struct.name = $1->s;
1360 if (set_parent_node($3, $$))
1361 reparent_error(scanner, "struct reparent error");
1362 }
1363 | ID_TYPE struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end
1364 {
1365 $$ = make_node(scanner, NODE_STRUCT);
1366 $$->u._struct.name = $1->s;
1367 if (set_parent_node($3, $$))
1368 reparent_error(scanner, "struct reparent error");
1369 }
1370 | IDENTIFIER
1371 {
1372 $$ = make_node(scanner, NODE_STRUCT);
1373 $$->u._struct.name = $1->s;
1374 }
1375 | ID_TYPE
1376 {
1377 $$ = make_node(scanner, NODE_STRUCT);
1378 $$->u._struct.name = $1->s;
1379 }
1380 ;
1381
1382struct_declaration_begin:
1383 LBRAC
1384 { push_scope(scanner); }
1385 ;
1386
1387struct_declaration_end:
1388 RBRAC
1389 { pop_scope(scanner); }
1390 ;
1391
1392variant_type_specifier:
1393 variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1394 {
1395 $$ = make_node(scanner, NODE_VARIANT);
1396 if (set_parent_node($2, $$))
1397 reparent_error(scanner, "variant reparent error");
1398 }
1399 | LT IDENTIFIER GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1400 {
1401 $$ = make_node(scanner, NODE_VARIANT);
1402 $$->u.variant.choice = $2->s;
1403 if (set_parent_node($5, $$))
1404 reparent_error(scanner, "variant reparent error");
1405 }
1406 | LT ID_TYPE GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1407 {
1408 $$ = make_node(scanner, NODE_VARIANT);
1409 $$->u.variant.choice = $2->s;
1410 if (set_parent_node($5, $$))
1411 reparent_error(scanner, "variant reparent error");
1412 }
1413 | IDENTIFIER variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1414 {
1415 $$ = make_node(scanner, NODE_VARIANT);
1416 $$->u.variant.name = $1->s;
1417 if (set_parent_node($3, $$))
1418 reparent_error(scanner, "variant reparent error");
1419 }
1420 | IDENTIFIER LT IDENTIFIER GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1421 {
1422 $$ = make_node(scanner, NODE_VARIANT);
1423 $$->u.variant.name = $1->s;
1424 $$->u.variant.choice = $3->s;
1425 if (set_parent_node($6, $$))
1426 reparent_error(scanner, "variant reparent error");
1427 }
1428 | IDENTIFIER LT IDENTIFIER GT
1429 {
1430 $$ = make_node(scanner, NODE_VARIANT);
1431 $$->u.variant.name = $1->s;
1432 $$->u.variant.choice = $3->s;
1433 }
1434 | IDENTIFIER LT ID_TYPE GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1435 {
1436 $$ = make_node(scanner, NODE_VARIANT);
1437 $$->u.variant.name = $1->s;
1438 $$->u.variant.choice = $3->s;
1439 if (set_parent_node($6, $$))
1440 reparent_error(scanner, "variant reparent error");
1441 }
1442 | IDENTIFIER LT ID_TYPE GT
1443 {
1444 $$ = make_node(scanner, NODE_VARIANT);
1445 $$->u.variant.name = $1->s;
1446 $$->u.variant.choice = $3->s;
1447 }
1448 | ID_TYPE variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1449 {
1450 $$ = make_node(scanner, NODE_VARIANT);
1451 $$->u.variant.name = $1->s;
1452 if (set_parent_node($3, $$))
1453 reparent_error(scanner, "variant reparent error");
1454 }
1455 | ID_TYPE LT IDENTIFIER GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1456 {
1457 $$ = make_node(scanner, NODE_VARIANT);
1458 $$->u.variant.name = $1->s;
1459 $$->u.variant.choice = $3->s;
1460 if (set_parent_node($6, $$))
1461 reparent_error(scanner, "variant reparent error");
1462 }
1463 | ID_TYPE LT IDENTIFIER GT
1464 {
1465 $$ = make_node(scanner, NODE_VARIANT);
1466 $$->u.variant.name = $1->s;
1467 $$->u.variant.choice = $3->s;
1468 }
1469 | ID_TYPE LT ID_TYPE GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1470 {
1471 $$ = make_node(scanner, NODE_VARIANT);
1472 $$->u.variant.name = $1->s;
1473 $$->u.variant.choice = $3->s;
1474 if (set_parent_node($6, $$))
1475 reparent_error(scanner, "variant reparent error");
1476 }
1477 | ID_TYPE LT ID_TYPE GT
1478 {
1479 $$ = make_node(scanner, NODE_VARIANT);
1480 $$->u.variant.name = $1->s;
1481 $$->u.variant.choice = $3->s;
1482 }
1483 ;
1484
1485variant_declaration_begin:
1486 LBRAC
1487 { push_scope(scanner); }
1488 ;
1489
1490variant_declaration_end:
1491 RBRAC
1492 { pop_scope(scanner); }
1493 ;
1494
1495type_specifier_or_integer_constant:
1496 declaration_specifiers
1497 { $$ = $1; }
1498 | DECIMAL_CONSTANT
1499 {
1500 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1501 $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
1502 sscanf(yylval.gs->s, "%" PRIu64,
1503 &$$->u.unary_expression.u.unsigned_constant);
1504 }
1505 | OCTAL_CONSTANT
1506 {
1507 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1508 $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
1509 sscanf(yylval.gs->s, "0%" PRIo64,
1510 &$$->u.unary_expression.u.unsigned_constant);
1511 }
1512 | HEXADECIMAL_CONSTANT
1513 {
1514 $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1515 $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
1516 sscanf(yylval.gs->s, "0x%" PRIx64,
1517 &$$->u.unary_expression.u.unsigned_constant);
1518 }
1519 ;
1520
1521enum_type_specifier:
1522 LBRAC enumerator_list RBRAC
1523 {
1524 $$ = make_node(scanner, NODE_ENUM);
1525 _cds_list_splice_tail(&($2)->tmp_head, &($$)->u._enum.enumerator_list);
1526 }
1527 | LT type_specifier_or_integer_constant GT LBRAC enumerator_list RBRAC
1528 {
1529 $$ = make_node(scanner, NODE_ENUM);
1530 $$->u._enum.container_type = $2;
1531 _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
1532 }
1533 | IDENTIFIER LBRAC enumerator_list RBRAC
1534 {
1535 $$ = make_node(scanner, NODE_ENUM);
1536 $$->u._enum.enum_id = $1->s;
1537 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
1538 }
1539 | IDENTIFIER LT type_specifier_or_integer_constant GT LBRAC enumerator_list RBRAC
1540 {
1541 $$ = make_node(scanner, NODE_ENUM);
1542 $$->u._enum.enum_id = $1->s;
1543 $$->u._enum.container_type = $3;
1544 _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
1545 }
1546 | ID_TYPE LBRAC enumerator_list RBRAC
1547 {
1548 $$ = make_node(scanner, NODE_ENUM);
1549 $$->u._enum.enum_id = $1->s;
1550 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
1551 }
1552 | ID_TYPE LT type_specifier_or_integer_constant GT LBRAC enumerator_list RBRAC
1553 {
1554 $$ = make_node(scanner, NODE_ENUM);
1555 $$->u._enum.enum_id = $1->s;
1556 $$->u._enum.container_type = $3;
1557 _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
1558 }
1559 | LBRAC enumerator_list COMMA RBRAC
1560 {
1561 $$ = make_node(scanner, NODE_ENUM);
1562 _cds_list_splice_tail(&($2)->tmp_head, &($$)->u._enum.enumerator_list);
1563 }
1564 | LT type_specifier_or_integer_constant GT LBRAC enumerator_list COMMA RBRAC
1565 {
1566 $$ = make_node(scanner, NODE_ENUM);
1567 $$->u._enum.container_type = $2;
1568 _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
1569 }
1570 | IDENTIFIER LBRAC enumerator_list COMMA RBRAC
1571 {
1572 $$ = make_node(scanner, NODE_ENUM);
1573 $$->u._enum.enum_id = $1->s;
1574 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
1575 }
1576 | IDENTIFIER LT type_specifier_or_integer_constant GT LBRAC enumerator_list COMMA RBRAC
1577 {
1578 $$ = make_node(scanner, NODE_ENUM);
1579 $$->u._enum.enum_id = $1->s;
1580 $$->u._enum.container_type = $3;
1581 _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
1582 }
1583 | IDENTIFIER
1584 {
1585 $$ = make_node(scanner, NODE_ENUM);
1586 $$->u._enum.enum_id = $1->s;
1587 }
1588 | IDENTIFIER LT type_specifier_or_integer_constant GT
1589 {
1590 $$ = make_node(scanner, NODE_ENUM);
1591 $$->u._enum.enum_id = $1->s;
1592 $$->u._enum.container_type = $3;
1593 }
1594 | ID_TYPE LBRAC enumerator_list COMMA RBRAC
1595 {
1596 $$ = make_node(scanner, NODE_ENUM);
1597 $$->u._enum.enum_id = $1->s;
1598 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
1599 }
1600 | ID_TYPE LT type_specifier_or_integer_constant GT LBRAC enumerator_list COMMA RBRAC
1601 {
1602 $$ = make_node(scanner, NODE_ENUM);
1603 $$->u._enum.enum_id = $1->s;
1604 $$->u._enum.container_type = $3;
1605 _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
1606 }
1607 | ID_TYPE
1608 {
1609 $$ = make_node(scanner, NODE_ENUM);
1610 $$->u._enum.enum_id = $1->s;
1611 }
1612 | ID_TYPE LT type_specifier_or_integer_constant GT
1613 {
1614 $$ = make_node(scanner, NODE_ENUM);
1615 $$->u._enum.enum_id = $1->s;
1616 $$->u._enum.container_type = $3;
1617 }
1618 ;
1619
1620struct_or_variant_declaration_list:
1621 /* empty */
1622 { $$ = NULL; }
1623 | struct_or_variant_declaration_list struct_or_variant_declaration
1624 {
1625 if ($1) {
1626 $$ = $1;
1627 cds_list_add_tail(&($2)->siblings, &($$)->tmp_head);
1628 } else {
1629 $$ = $2;
1630 cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1631 }
1632 }
1633 ;
1634
1635struct_or_variant_declaration:
1636 specifier_qualifier_list struct_or_variant_declarator_list SEMICOLON
1637 {
1638 $$ = make_node(scanner, NODE_STRUCT_OR_VARIANT_DECLARATION);
1639 _cds_list_splice_tail(&($1)->tmp_head, &($$)->u.struct_or_variant_declaration.declaration_specifier);
1640 _cds_list_splice_tail(&($2)->tmp_head, &($$)->u.struct_or_variant_declaration.type_declarators);
1641 }
1642 | specifier_qualifier_list TYPEDEF specifier_qualifier_list type_declarator_list SEMICOLON
1643 {
1644 $$ = make_node(scanner, NODE_TYPEDEF);
1645 _cds_list_splice_tail(&($1)->tmp_head, &($$)->u._typedef.declaration_specifier);
1646 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.declaration_specifier);
1647 _cds_list_splice_tail(&($4)->tmp_head, &($$)->u._typedef.type_declarators);
1648 }
1649 | TYPEDEF specifier_qualifier_list type_declarator_list SEMICOLON
1650 {
1651 $$ = make_node(scanner, NODE_TYPEDEF);
1652 _cds_list_splice_tail(&($2)->tmp_head, &($$)->u._typedef.declaration_specifier);
1653 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
1654 }
1655 | specifier_qualifier_list TYPEDEF type_declarator_list SEMICOLON
1656 {
1657 $$ = make_node(scanner, NODE_TYPEDEF);
1658 _cds_list_splice_tail(&($1)->tmp_head, &($$)->u._typedef.declaration_specifier);
1659 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
1660 }
1661 | TYPEALIAS specifier_qualifier_list abstract_declarator_list COLON specifier_qualifier_list abstract_type_declarator_list SEMICOLON
1662 {
1663 $$ = make_node(scanner, NODE_TYPEALIAS);
1664 $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
1665 $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
1666 _cds_list_splice_tail(&($2)->tmp_head, &($$)->u.typealias.target->u.typealias_target.declaration_specifier);
1667 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.typealias.target->u.typealias_target.type_declarators);
1668 _cds_list_splice_tail(&($5)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.declaration_specifier);
1669 _cds_list_splice_tail(&($6)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
1670 }
1671 | TYPEALIAS specifier_qualifier_list abstract_declarator_list COLON type_declarator_list SEMICOLON
1672 {
1673 $$ = make_node(scanner, NODE_TYPEALIAS);
1674 $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
1675 $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
1676 _cds_list_splice_tail(&($2)->tmp_head, &($$)->u.typealias.target->u.typealias_target.declaration_specifier);
1677 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.declaration_specifier);
1678 _cds_list_splice_tail(&($5)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
1679 }
1680 ;
1681
1682specifier_qualifier_list:
1683 CONST
1684 {
1685 $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1686 $$->u.type_specifier.type = TYPESPEC_CONST;
1687 }
1688 | type_specifier
1689 { $$ = $1; }
1690 | specifier_qualifier_list CONST
1691 {
1692 struct ctf_node *node;
1693
1694 $$ = $1;
1695 node = make_node(scanner, NODE_TYPE_SPECIFIER);
1696 node->u.type_specifier.type = TYPESPEC_CONST;
1697 cds_list_add_tail(&node->siblings, &($$)->tmp_head);
1698 }
1699 | specifier_qualifier_list type_specifier
1700 {
1701 $$ = $1;
1702 cds_list_add_tail(&($2)->siblings, &($$)->tmp_head);
1703 }
1704 ;
1705
1706struct_or_variant_declarator_list:
1707 struct_or_variant_declarator
1708 { $$ = $1; }
1709 | struct_or_variant_declarator_list COMMA struct_or_variant_declarator
1710 {
1711 $$ = $1;
1712 cds_list_add_tail(&($3)->siblings, &($$)->tmp_head);
1713 }
1714 ;
1715
1716struct_or_variant_declarator:
1717 declarator
1718 { $$ = $1; }
1719 | COLON unary_expression
1720 { $$ = $2; }
1721 | declarator COLON unary_expression
1722 {
1723 $$ = $1;
1724 if (set_parent_node($3, $1))
1725 reparent_error(scanner, "struct_or_variant_declarator");
1726 }
1727 ;
1728
1729enumerator_list:
1730 enumerator
1731 { $$ = $1; }
1732 | enumerator_list COMMA enumerator
1733 {
1734 $$ = $1;
1735 cds_list_add_tail(&($3)->siblings, &($$)->tmp_head);
1736 }
1737 ;
1738
1739enumerator:
1740 IDENTIFIER
1741 {
1742 $$ = make_node(scanner, NODE_ENUMERATOR);
1743 $$->u.enumerator.id = $1->s;
1744 }
1745 | ID_TYPE
1746 {
1747 $$ = make_node(scanner, NODE_ENUMERATOR);
1748 $$->u.enumerator.id = $1->s;
1749 }
1750 | keywords
1751 {
1752 $$ = make_node(scanner, NODE_ENUMERATOR);
1753 $$->u.enumerator.id = $1->s;
1754 }
1755 | STRING_LITERAL_START DQUOTE
1756 {
1757 $$ = make_node(scanner, NODE_ENUMERATOR);
1758 $$->u.enumerator.id = "";
1759 }
1760 | STRING_LITERAL_START s_char_sequence DQUOTE
1761 {
1762 $$ = make_node(scanner, NODE_ENUMERATOR);
1763 $$->u.enumerator.id = $2->s;
1764 }
1765 | IDENTIFIER EQUAL unary_expression_or_range
1766 {
1767 $$ = make_node(scanner, NODE_ENUMERATOR);
1768 $$->u.enumerator.id = $1->s;
1769 cds_list_splice(&($3)->tmp_head, &($$)->u.enumerator.values);
1770 }
1771 | ID_TYPE EQUAL unary_expression_or_range
1772 {
1773 $$ = make_node(scanner, NODE_ENUMERATOR);
1774 $$->u.enumerator.id = $1->s;
1775 cds_list_splice(&($3)->tmp_head, &($$)->u.enumerator.values);
1776 }
1777 | keywords EQUAL unary_expression_or_range
1778 {
1779 $$ = make_node(scanner, NODE_ENUMERATOR);
1780 $$->u.enumerator.id = $1->s;
1781 cds_list_splice(&($3)->tmp_head, &($$)->u.enumerator.values);
1782 }
1783 | STRING_LITERAL_START DQUOTE EQUAL unary_expression_or_range
1784 {
1785 $$ = make_node(scanner, NODE_ENUMERATOR);
1786 $$->u.enumerator.id = "";
1787 cds_list_splice(&($4)->tmp_head, &($$)->u.enumerator.values);
1788 }
1789 | STRING_LITERAL_START s_char_sequence DQUOTE EQUAL unary_expression_or_range
1790 {
1791 $$ = make_node(scanner, NODE_ENUMERATOR);
1792 $$->u.enumerator.id = $2->s;
1793 cds_list_splice(&($5)->tmp_head, &($$)->u.enumerator.values);
1794 }
1795 ;
1796
1797abstract_declarator_list:
1798 abstract_declarator
1799 { $$ = $1; }
1800 | abstract_declarator_list COMMA abstract_declarator
1801 {
1802 $$ = $1;
1803 cds_list_add_tail(&($3)->siblings, &($$)->tmp_head);
1804 }
1805 ;
1806
1807abstract_declarator:
1808 direct_abstract_declarator
1809 { $$ = $1; }
1810 | pointer direct_abstract_declarator
1811 {
1812 $$ = $2;
1813 cds_list_splice(&($1)->tmp_head, &($$)->u.type_declarator.pointers);
1814 }
1815 ;
1816
1817direct_abstract_declarator:
1818 /* empty */
1819 {
1820 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
1821 $$->u.type_declarator.type = TYPEDEC_ID;
1822 /* id is NULL */
1823 }
1824 | IDENTIFIER
1825 {
1826 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
1827 $$->u.type_declarator.type = TYPEDEC_ID;
1828 $$->u.type_declarator.u.id = $1->s;
1829 }
1830 | LPAREN abstract_declarator RPAREN
1831 {
1832 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
1833 $$->u.type_declarator.type = TYPEDEC_NESTED;
1834 $$->u.type_declarator.u.nested.type_declarator = $2;
1835 }
1836 | direct_abstract_declarator LSBRAC type_specifier_or_integer_constant RSBRAC
1837 {
1838 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
1839 $$->u.type_declarator.type = TYPEDEC_NESTED;
1840 $$->u.type_declarator.u.nested.type_declarator = $1;
1841 $$->u.type_declarator.u.nested.length = $3;
1842 }
1843 | direct_abstract_declarator LSBRAC RSBRAC
1844 {
1845 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
1846 $$->u.type_declarator.type = TYPEDEC_NESTED;
1847 $$->u.type_declarator.u.nested.type_declarator = $1;
1848 $$->u.type_declarator.u.nested.abstract_array = 1;
1849 }
1850 ;
1851
1852declarator:
1853 direct_declarator
1854 { $$ = $1; }
1855 | pointer direct_declarator
1856 {
1857 $$ = $2;
1858 cds_list_splice(&($1)->tmp_head, &($$)->u.type_declarator.pointers);
1859 }
1860 ;
1861
1862direct_declarator:
1863 IDENTIFIER
1864 {
1865 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
1866 $$->u.type_declarator.type = TYPEDEC_ID;
1867 $$->u.type_declarator.u.id = $1->s;
1868 }
1869 | LPAREN declarator RPAREN
1870 {
1871 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
1872 $$->u.type_declarator.type = TYPEDEC_NESTED;
1873 $$->u.type_declarator.u.nested.type_declarator = $2;
1874 }
1875 | direct_declarator LSBRAC type_specifier_or_integer_constant RSBRAC
1876 {
1877 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
1878 $$->u.type_declarator.type = TYPEDEC_NESTED;
1879 $$->u.type_declarator.u.nested.type_declarator = $1;
1880 $$->u.type_declarator.u.nested.length = $3;
1881 }
1882 ;
1883
1884type_declarator:
1885 direct_type_declarator
1886 { $$ = $1; }
1887 | pointer direct_type_declarator
1888 {
1889 $$ = $2;
1890 cds_list_splice(&($1)->tmp_head, &($$)->u.type_declarator.pointers);
1891 }
1892 ;
1893
1894direct_type_declarator:
1895 IDENTIFIER
1896 {
1897 add_type(scanner, $1);
1898 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
1899 $$->u.type_declarator.type = TYPEDEC_ID;
1900 $$->u.type_declarator.u.id = $1->s;
1901 }
1902 | LPAREN type_declarator RPAREN
1903 {
1904 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
1905 $$->u.type_declarator.type = TYPEDEC_NESTED;
1906 $$->u.type_declarator.u.nested.type_declarator = $2;
1907 }
1908 | direct_type_declarator LSBRAC type_specifier_or_integer_constant RSBRAC
1909 {
1910 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
1911 $$->u.type_declarator.type = TYPEDEC_NESTED;
1912 $$->u.type_declarator.u.nested.type_declarator = $1;
1913 $$->u.type_declarator.u.nested.length = $3;
1914 }
1915 ;
1916
1917abstract_type_declarator:
1918 direct_abstract_type_declarator
1919 { $$ = $1; }
1920 | pointer direct_abstract_type_declarator
1921 {
1922 $$ = $2;
1923 cds_list_splice(&($1)->tmp_head, &($$)->u.type_declarator.pointers);
1924 }
1925 ;
1926
1927direct_abstract_type_declarator:
1928 /* empty */
1929 {
1930 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
1931 $$->u.type_declarator.type = TYPEDEC_ID;
1932 /* id is NULL */
1933 }
1934 | IDENTIFIER
1935 {
1936 add_type(scanner, $1);
1937 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
1938 $$->u.type_declarator.type = TYPEDEC_ID;
1939 $$->u.type_declarator.u.id = $1->s;
1940 }
1941 | LPAREN abstract_type_declarator RPAREN
1942 {
1943 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
1944 $$->u.type_declarator.type = TYPEDEC_NESTED;
1945 $$->u.type_declarator.u.nested.type_declarator = $2;
1946 }
1947 | direct_abstract_type_declarator LSBRAC type_specifier_or_integer_constant RSBRAC
1948 {
1949 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
1950 $$->u.type_declarator.type = TYPEDEC_NESTED;
1951 $$->u.type_declarator.u.nested.type_declarator = $1;
1952 $$->u.type_declarator.u.nested.length = $3;
1953 }
1954 | direct_abstract_type_declarator LSBRAC RSBRAC
1955 {
1956 $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
1957 $$->u.type_declarator.type = TYPEDEC_NESTED;
1958 $$->u.type_declarator.u.nested.type_declarator = $1;
1959 $$->u.type_declarator.u.nested.abstract_array = 1;
1960 }
1961 ;
1962
1963pointer:
1964 STAR
1965 {
1966 $$ = make_node(scanner, NODE_POINTER);
1967 }
1968 | STAR pointer
1969 {
1970 $$ = make_node(scanner, NODE_POINTER);
1971 cds_list_splice(&($2)->tmp_head, &($$)->tmp_head);
1972 }
1973 | STAR type_qualifier_list pointer
1974 {
1975 $$ = make_node(scanner, NODE_POINTER);
1976 $$->u.pointer.const_qualifier = 1;
1977 cds_list_splice(&($3)->tmp_head, &($$)->tmp_head);
1978 }
1979 ;
1980
1981type_qualifier_list:
1982 /* pointer assumes only const type qualifier */
1983 CONST
1984 | type_qualifier_list CONST
1985 ;
1986
1987/* 2.3: CTF-specific declarations */
1988
1989ctf_assignment_expression_list:
1990 ctf_assignment_expression SEMICOLON
1991 { $$ = $1; }
1992 | ctf_assignment_expression_list ctf_assignment_expression SEMICOLON
1993 {
1994 $$ = $1;
1995 cds_list_add_tail(&($2)->siblings, &($$)->tmp_head);
1996 }
1997 ;
1998
1999ctf_assignment_expression:
2000 unary_expression EQUAL unary_expression
2001 {
2002 /*
2003 * Because we have left and right, cannot use
2004 * set_parent_node.
2005 */
2006 $$ = make_node(scanner, NODE_CTF_EXPRESSION);
2007 _cds_list_splice_tail(&($1)->tmp_head, &($$)->u.ctf_expression.left);
2008 if ($1->u.unary_expression.type != UNARY_STRING)
2009 reparent_error(scanner, "ctf_assignment_expression left expects string");
2010 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.ctf_expression.right);
2011 }
2012 | unary_expression TYPEASSIGN type_specifier
2013 {
2014 /*
2015 * Because we have left and right, cannot use
2016 * set_parent_node.
2017 */
2018 $$ = make_node(scanner, NODE_CTF_EXPRESSION);
2019 _cds_list_splice_tail(&($1)->tmp_head, &($$)->u.ctf_expression.left);
2020 if ($1->u.unary_expression.type != UNARY_STRING)
2021 reparent_error(scanner, "ctf_assignment_expression left expects string");
2022 cds_list_add(&($3)->siblings, &($3)->tmp_head);
2023 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.ctf_expression.right);
2024 }
2025 | declaration_specifiers TYPEDEF declaration_specifiers type_declarator_list
2026 {
2027 $$ = make_node(scanner, NODE_TYPEDEF);
2028 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.declaration_specifier);
2029 _cds_list_splice_tail(&($1)->tmp_head, &($$)->u._typedef.declaration_specifier);
2030 _cds_list_splice_tail(&($4)->tmp_head, &($$)->u._typedef.type_declarators);
2031 }
2032 | TYPEDEF declaration_specifiers type_declarator_list
2033 {
2034 $$ = make_node(scanner, NODE_TYPEDEF);
2035 _cds_list_splice_tail(&($2)->tmp_head, &($$)->u._typedef.declaration_specifier);
2036 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
2037 }
2038 | declaration_specifiers TYPEDEF type_declarator_list
2039 {
2040 $$ = make_node(scanner, NODE_TYPEDEF);
2041 _cds_list_splice_tail(&($1)->tmp_head, &($$)->u._typedef.declaration_specifier);
2042 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
2043 }
2044 | TYPEALIAS declaration_specifiers abstract_declarator_list COLON declaration_specifiers abstract_type_declarator_list
2045 {
2046 $$ = make_node(scanner, NODE_TYPEALIAS);
2047 $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
2048 $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
2049 _cds_list_splice_tail(&($2)->tmp_head, &($$)->u.typealias.target->u.typealias_target.declaration_specifier);
2050 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.typealias.target->u.typealias_target.type_declarators);
2051 _cds_list_splice_tail(&($5)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.declaration_specifier);
2052 _cds_list_splice_tail(&($6)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
2053 }
2054 | TYPEALIAS declaration_specifiers abstract_declarator_list COLON type_declarator_list
2055 {
2056 $$ = make_node(scanner, NODE_TYPEALIAS);
2057 $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
2058 $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
2059 _cds_list_splice_tail(&($2)->tmp_head, &($$)->u.typealias.target->u.typealias_target.declaration_specifier);
2060 _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.declaration_specifier);
2061 _cds_list_splice_tail(&($5)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
2062 }
2063 ;
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