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
  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 /*
  34  * TODO: support enum, variant and struct declarations in scopes.
  35  */
  36
  37 /* Join two lists, put "add" at the end of "head".  */
  38 static inline void
  39 _cds_list_splice_tail (struct cds_list_head *add, struct cds_list_head *head)
  40 {
  41         /* Do nothing if the list which gets added is empty.  */
  42         if (add != add->next) {
  43                 add->next->prev = head->prev;
  44                 add->prev->next = head;
  45                 head->prev->next = add->next;
  46                 head->prev = add->prev;
  47         }
  48 }
  49
  50 #define printf_dbg(fmt, args...)        fprintf(stderr, "%s: " fmt, __func__, ## args)
  51
  52 int yyparse(struct ctf_scanner *scanner);
  53 int yylex(union YYSTYPE *yyval, struct ctf_scanner *scanner);
  54 int yylex_init_extra(struct ctf_scanner *scanner, yyscan_t * ptr_yy_globals);
  55 int yylex_destroy(yyscan_t yyscanner) ;
  56 void yyset_in(FILE * in_str, yyscan_t scanner);
  57
  58 int yydebug;
  59
  60 struct gc_string {
  61         struct cds_list_head gc;
  62         size_t alloclen;
  63         char s[];
  64 };
  65
  66 static const char *node_type_to_str[] = {
  67         [ NODE_UNKNOWN ] = "NODE_UNKNOWN",
  68         [ NODE_ROOT ] = "NODE_ROOT",
  69         [ NODE_EVENT ] = "NODE_EVENT",
  70         [ NODE_STREAM ] = "NODE_STREAM",
  71         [ NODE_TRACE ] = "NODE_TRACE",
  72         [ NODE_CTF_EXPRESSION ] = "NODE_CTF_EXPRESSION",
  73         [ NODE_UNARY_EXPRESSION ] = "NODE_UNARY_EXPRESSION",
  74         [ NODE_TYPEDEF ] = "NODE_TYPEDEF",
  75         [ NODE_TYPEALIAS_TARGET ] = "NODE_TYPEALIAS_TARGET",
  76         [ NODE_TYPEALIAS_ALIAS ] = "NODE_TYPEALIAS_ALIAS",
  77         [ NODE_TYPEALIAS ] = "NODE_TYPEALIAS",
  78         [ NODE_TYPE_SPECIFIER ] = "NODE_TYPE_SPECIFIER",
  79         [ NODE_TYPE_SPECIFIER_LIST ] = "NODE_TYPE_SPECIFIER_LIST",
  80         [ NODE_POINTER ] = "NODE_POINTER",
  81         [ NODE_TYPE_DECLARATOR ] = "NODE_TYPE_DECLARATOR",
  82         [ NODE_FLOATING_POINT ] = "NODE_FLOATING_POINT",
  83         [ NODE_INTEGER ] = "NODE_INTEGER",
  84         [ NODE_STRING ] = "NODE_STRING",
  85         [ NODE_ENUMERATOR ] = "NODE_ENUMERATOR",
  86         [ NODE_ENUM ] = "NODE_ENUM",
  87         [ NODE_STRUCT_OR_VARIANT_DECLARATION ] = "NODE_STRUCT_OR_VARIANT_DECLARATION",
  88         [ NODE_VARIANT ] = "NODE_VARIANT",
  89         [ NODE_STRUCT ] = "NODE_STRUCT",
  90 };
  91
  92 const char *node_type(struct ctf_node *node)
  93 {
  94         if (node->type < NR_NODE_TYPES)
  95                 return node_type_to_str[node->type];
  96         else
  97                 return NULL;
  98 }
  99
 100 static struct gc_string *gc_string_alloc(struct ctf_scanner *scanner,
 101                                          size_t len)
 102 {
 103         struct gc_string *gstr;
 104         size_t alloclen;
 105
 106         /* TODO: could be faster with find first bit or glib Gstring */
 107         /* sizeof long to account for malloc header (int or long ?) */
 108         for (alloclen = 8; alloclen < sizeof(long) + sizeof(*gstr) + len;
 109              alloclen *= 2);
 110
 111         gstr = malloc(alloclen);
 112         cds_list_add(&gstr->gc, &scanner->allocated_strings);
 113         gstr->alloclen = alloclen;
 114         return gstr;
 115 }
 116
 117 /*
 118  * note: never use gc_string_append on a string that has external references.
 119  * gsrc will be garbage collected immediately, and gstr might be.
 120  * Should only be used to append characters to a string literal or constant.
 121  */
 122 struct gc_string *gc_string_append(struct ctf_scanner *scanner,
 123                                    struct gc_string *gstr,
 124                                    struct gc_string *gsrc)
 125 {
 126         size_t newlen = strlen(gsrc->s) + strlen(gstr->s) + 1;
 127         size_t alloclen;
 128
 129         /* TODO: could be faster with find first bit or glib Gstring */
 130         /* sizeof long to account for malloc header (int or long ?) */
 131         for (alloclen = 8; alloclen < sizeof(long) + sizeof(*gstr) + newlen;
 132              alloclen *= 2);
 133
 134         if (alloclen > gstr->alloclen) {
 135                 struct gc_string *newgstr;
 136
 137                 newgstr = gc_string_alloc(scanner, newlen);
 138                 strcpy(newgstr->s, gstr->s);
 139                 strcat(newgstr->s, gsrc->s);
 140                 cds_list_del(&gstr->gc);
 141                 free(gstr);
 142                 gstr = newgstr;
 143         } else {
 144                 strcat(gstr->s, gsrc->s);
 145         }
 146         cds_list_del(&gsrc->gc);
 147         free(gsrc);
 148         return gstr;
 149 }
 150
 151 void setstring(struct ctf_scanner *scanner, YYSTYPE *lvalp, const char *src)
 152 {
 153         lvalp->gs = gc_string_alloc(scanner, strlen(src) + 1);
 154         strcpy(lvalp->gs->s, src);
 155 }
 156
 157 static void init_scope(struct ctf_scanner_scope *scope,
 158                        struct ctf_scanner_scope *parent)
 159 {
 160         scope->parent = parent;
 161         scope->types = g_hash_table_new_full(g_str_hash, g_str_equal,
 162                                              NULL, NULL);
 163 }
 164
 165 static void finalize_scope(struct ctf_scanner_scope *scope)
 166 {
 167         g_hash_table_destroy(scope->types);
 168 }
 169
 170 static void push_scope(struct ctf_scanner *scanner)
 171 {
 172         struct ctf_scanner_scope *ns;
 173
 174         printf_dbg("push scope\n");
 175         ns = malloc(sizeof(struct ctf_scanner_scope));
 176         init_scope(ns, scanner->cs);
 177         scanner->cs = ns;
 178 }
 179
 180 static void pop_scope(struct ctf_scanner *scanner)
 181 {
 182         struct ctf_scanner_scope *os;
 183
 184         printf_dbg("pop scope\n");
 185         os = scanner->cs;
 186         scanner->cs = os->parent;
 187         finalize_scope(os);
 188         free(os);
 189 }
 190
 191 static int lookup_type(struct ctf_scanner_scope *s, const char *id)
 192 {
 193         int ret;
 194
 195         ret = (int) (long) g_hash_table_lookup(s->types, id);
 196         printf_dbg("lookup %p %s %d\n", s, id, ret);
 197         return ret;
 198 }
 199
 200 int is_type(struct ctf_scanner *scanner, const char *id)
 201 {
 202         struct ctf_scanner_scope *it;
 203         int ret = 0;
 204
 205         for (it = scanner->cs; it != NULL; it = it->parent) {
 206                 if (lookup_type(it, id)) {
 207                         ret = 1;
 208                         break;
 209                 }
 210         }
 211         printf_dbg("is type %s %d\n", id, ret);
 212         return ret;
 213 }
 214
 215 static void add_type(struct ctf_scanner *scanner, struct gc_string *id)
 216 {
 217         printf_dbg("add type %s\n", id->s);
 218         if (lookup_type(scanner->cs, id->s))
 219                 return;
 220         g_hash_table_insert(scanner->cs->types, id->s, id->s);
 221 }
 222
 223 static struct ctf_node *make_node(struct ctf_scanner *scanner,
 224                                   enum node_type type)
 225 {
 226         struct ctf_ast *ast = ctf_scanner_get_ast(scanner);
 227         struct ctf_node *node;
 228
 229         node = malloc(sizeof(*node));
 230         if (!node)
 231                 return NULL;
 232         memset(node, 0, sizeof(*node));
 233         node->type = type;
 234         CDS_INIT_LIST_HEAD(&node->tmp_head);
 235         cds_list_add(&node->gc, &ast->allocated_nodes);
 236         cds_list_add(&node->siblings, &node->tmp_head);
 237
 238         switch (type) {
 239         case NODE_ROOT:
 240                 fprintf(stderr, "[error] %s: trying to create root node\n", __func__);
 241                 break;
 242
 243         case NODE_EVENT:
 244                 CDS_INIT_LIST_HEAD(&node->u.event.declaration_list);
 245                 break;
 246         case NODE_STREAM:
 247                 CDS_INIT_LIST_HEAD(&node->u.stream.declaration_list);
 248                 break;
 249         case NODE_TRACE:
 250                 CDS_INIT_LIST_HEAD(&node->u.trace.declaration_list);
 251                 break;
 252
 253         case NODE_CTF_EXPRESSION:
 254                 CDS_INIT_LIST_HEAD(&node->u.ctf_expression.left);
 255                 CDS_INIT_LIST_HEAD(&node->u.ctf_expression.right);
 256                 break;
 257         case NODE_UNARY_EXPRESSION:
 258                 break;
 259
 260         case NODE_TYPEDEF:
 261                 CDS_INIT_LIST_HEAD(&node->u._typedef.type_declarators);
 262                 break;
 263         case NODE_TYPEALIAS_TARGET:
 264                 CDS_INIT_LIST_HEAD(&node->u.typealias_target.type_declarators);
 265                 break;
 266         case NODE_TYPEALIAS_ALIAS:
 267                 CDS_INIT_LIST_HEAD(&node->u.typealias_alias.type_declarators);
 268                 break;
 269         case NODE_TYPEALIAS:
 270                 break;
 271
 272         case NODE_TYPE_SPECIFIER:
 273                 break;
 274         case NODE_TYPE_SPECIFIER_LIST:
 275                 CDS_INIT_LIST_HEAD(&node->u.type_specifier_list.head);
 276                 break;
 277         case NODE_POINTER:
 278                 break;
 279         case NODE_TYPE_DECLARATOR:
 280                 CDS_INIT_LIST_HEAD(&node->u.type_declarator.pointers);
 281                 break;
 282
 283         case NODE_FLOATING_POINT:
 284                 CDS_INIT_LIST_HEAD(&node->u.floating_point.expressions);
 285                 break;
 286         case NODE_INTEGER:
 287                 CDS_INIT_LIST_HEAD(&node->u.integer.expressions);
 288                 break;
 289         case NODE_STRING:
 290                 CDS_INIT_LIST_HEAD(&node->u.string.expressions);
 291                 break;
 292         case NODE_ENUMERATOR:
 293                 CDS_INIT_LIST_HEAD(&node->u.enumerator.values);
 294                 break;
 295         case NODE_ENUM:
 296                 CDS_INIT_LIST_HEAD(&node->u._enum.enumerator_list);
 297                 break;
 298         case NODE_STRUCT_OR_VARIANT_DECLARATION:
 299                 CDS_INIT_LIST_HEAD(&node->u.struct_or_variant_declaration.type_declarators);
 300                 break;
 301         case NODE_VARIANT:
 302                 CDS_INIT_LIST_HEAD(&node->u.variant.declaration_list);
 303                 break;
 304         case NODE_STRUCT:
 305                 CDS_INIT_LIST_HEAD(&node->u._struct.declaration_list);
 306                 break;
 307
 308         case NODE_UNKNOWN:
 309         default:
 310                 fprintf(stderr, "[error] %s: unknown node type %d\n", __func__,
 311                         (int) type);
 312                 break;
 313         }
 314
 315         return node;
 316 }
 317
 318 static int reparent_ctf_expression(struct ctf_node *node,
 319                                    struct ctf_node *parent)
 320 {
 321         switch (parent->type) {
 322         case NODE_EVENT:
 323                 _cds_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
 324                 break;
 325         case NODE_STREAM:
 326                 _cds_list_splice_tail(&node->tmp_head, &parent->u.stream.declaration_list);
 327                 break;
 328         case NODE_TRACE:
 329                 _cds_list_splice_tail(&node->tmp_head, &parent->u.trace.declaration_list);
 330                 break;
 331         case NODE_FLOATING_POINT:
 332                 _cds_list_splice_tail(&node->tmp_head, &parent->u.floating_point.expressions);
 333                 break;
 334         case NODE_INTEGER:
 335                 _cds_list_splice_tail(&node->tmp_head, &parent->u.integer.expressions);
 336                 break;
 337         case NODE_STRING:
 338                 _cds_list_splice_tail(&node->tmp_head, &parent->u.string.expressions);
 339                 break;
 340
 341         case NODE_ROOT:
 342         case NODE_CTF_EXPRESSION:
 343         case NODE_TYPEDEF:
 344         case NODE_TYPEALIAS_TARGET:
 345         case NODE_TYPEALIAS_ALIAS:
 346         case NODE_TYPEALIAS:
 347         case NODE_TYPE_SPECIFIER:
 348         case NODE_TYPE_SPECIFIER_LIST:
 349         case NODE_POINTER:
 350         case NODE_TYPE_DECLARATOR:
 351         case NODE_ENUMERATOR:
 352         case NODE_ENUM:
 353         case NODE_STRUCT_OR_VARIANT_DECLARATION:
 354         case NODE_VARIANT:
 355         case NODE_STRUCT:
 356         case NODE_UNARY_EXPRESSION:
 357                 return -EPERM;
 358
 359         case NODE_UNKNOWN:
 360         default:
 361                 fprintf(stderr, "[error] %s: unknown node type %d\n", __func__,
 362                         (int) parent->type);
 363                 return -EINVAL;
 364         }
 365         return 0;
 366 }
 367
 368 static int reparent_typedef(struct ctf_node *node, struct ctf_node *parent)
 369 {
 370         switch (parent->type) {
 371         case NODE_ROOT:
 372                 _cds_list_splice_tail(&node->tmp_head, &parent->u.root.declaration_list);
 373                 break;
 374         case NODE_EVENT:
 375                 _cds_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
 376                 break;
 377         case NODE_STREAM:
 378                 _cds_list_splice_tail(&node->tmp_head, &parent->u.stream.declaration_list);
 379                 break;
 380         case NODE_TRACE:
 381                 _cds_list_splice_tail(&node->tmp_head, &parent->u.trace.declaration_list);
 382                 break;
 383         case NODE_VARIANT:
 384                 _cds_list_splice_tail(&node->tmp_head, &parent->u.variant.declaration_list);
 385                 break;
 386         case NODE_STRUCT:
 387                 _cds_list_splice_tail(&node->tmp_head, &parent->u._struct.declaration_list);
 388                 break;
 389
 390         case NODE_FLOATING_POINT:
 391         case NODE_INTEGER:
 392         case NODE_STRING:
 393         case NODE_CTF_EXPRESSION:
 394         case NODE_TYPEDEF:
 395         case NODE_TYPEALIAS_TARGET:
 396         case NODE_TYPEALIAS_ALIAS:
 397         case NODE_TYPEALIAS:
 398         case NODE_TYPE_SPECIFIER:
 399         case NODE_TYPE_SPECIFIER_LIST:
 400         case NODE_POINTER:
 401         case NODE_TYPE_DECLARATOR:
 402         case NODE_ENUMERATOR:
 403         case NODE_ENUM:
 404         case NODE_STRUCT_OR_VARIANT_DECLARATION:
 405         case NODE_UNARY_EXPRESSION:
 406                 return -EPERM;
 407
 408         case NODE_UNKNOWN:
 409         default:
 410                 fprintf(stderr, "[error] %s: unknown node type %d\n", __func__,
 411                         (int) parent->type);
 412                 return -EINVAL;
 413         }
 414         return 0;
 415 }
 416
 417 static int reparent_typealias(struct ctf_node *node, struct ctf_node *parent)
 418 {
 419         switch (parent->type) {
 420         case NODE_ROOT:
 421                 _cds_list_splice_tail(&node->tmp_head, &parent->u.root.declaration_list);
 422                 break;
 423         case NODE_EVENT:
 424                 _cds_list_splice_tail(&node->tmp_head, &parent->u.event.declaration_list);
 425                 break;
 426         case NODE_STREAM:
 427                 _cds_list_splice_tail(&node->tmp_head, &parent->u.stream.declaration_list);
 428                 break;
 429         case NODE_TRACE:
 430                 _cds_list_splice_tail(&node->tmp_head, &parent->u.trace.declaration_list);
 431                 break;
 432         case NODE_VARIANT:
 433                 _cds_list_splice_tail(&node->tmp_head, &parent->u.variant.declaration_list);
 434                 break;
 435         case NODE_STRUCT:
 436                 _cds_list_splice_tail(&node->tmp_head, &parent->u._struct.declaration_list);
 437                 break;
 438
 439         case NODE_FLOATING_POINT:
 440         case NODE_INTEGER:
 441         case NODE_STRING:
 442         case NODE_CTF_EXPRESSION:
 443         case NODE_TYPEDEF:
 444         case NODE_TYPEALIAS_TARGET:
 445         case NODE_TYPEALIAS_ALIAS:
 446         case NODE_TYPEALIAS:
 447         case NODE_TYPE_SPECIFIER:
 448         case NODE_TYPE_SPECIFIER_LIST:
 449         case NODE_POINTER:
 450         case NODE_TYPE_DECLARATOR:
 451         case NODE_ENUMERATOR:
 452         case NODE_ENUM:
 453         case NODE_STRUCT_OR_VARIANT_DECLARATION:
 454         case NODE_UNARY_EXPRESSION:
 455                 return -EPERM;
 456
 457         case NODE_UNKNOWN:
 458         default:
 459                 fprintf(stderr, "[error] %s: unknown node type %d\n", __func__,
 460                         (int) parent->type);
 461                 return -EINVAL;
 462         }
 463         return 0;
 464 }
 465
 466 static int reparent_type_specifier(struct ctf_node *node,
 467                                    struct ctf_node *parent)
 468 {
 469         switch (parent->type) {
 470         case NODE_TYPE_SPECIFIER_LIST:
 471                 _cds_list_splice_tail(&node->tmp_head, &parent->u.type_specifier_list.head);
 472                 break;
 473
 474         case NODE_TYPE_SPECIFIER:
 475         case NODE_EVENT:
 476         case NODE_STREAM:
 477         case NODE_TRACE:
 478         case NODE_VARIANT:
 479         case NODE_STRUCT:
 480         case NODE_TYPEDEF:
 481         case NODE_TYPEALIAS_TARGET:
 482         case NODE_TYPEALIAS_ALIAS:
 483         case NODE_TYPE_DECLARATOR:
 484         case NODE_ENUM:
 485         case NODE_STRUCT_OR_VARIANT_DECLARATION:
 486         case NODE_TYPEALIAS:
 487         case NODE_FLOATING_POINT:
 488         case NODE_INTEGER:
 489         case NODE_STRING:
 490         case NODE_CTF_EXPRESSION:
 491         case NODE_POINTER:
 492         case NODE_ENUMERATOR:
 493         case NODE_UNARY_EXPRESSION:
 494                 return -EPERM;
 495
 496         case NODE_UNKNOWN:
 497         default:
 498                 fprintf(stderr, "[error] %s: unknown node type %d\n", __func__,
 499                         (int) parent->type);
 500                 return -EINVAL;
 501         }
 502         return 0;
 503 }
 504
 505 static int reparent_type_specifier_list(struct ctf_node *node,
 506                                         struct ctf_node *parent)
 507 {
 508         switch (parent->type) {
 509         case NODE_ROOT:
 510                 cds_list_add_tail(&node->siblings, &parent->u.root.declaration_list);
 511                 break;
 512         case NODE_EVENT:
 513                 cds_list_add_tail(&node->siblings, &parent->u.event.declaration_list);
 514                 break;
 515         case NODE_STREAM:
 516                 cds_list_add_tail(&node->siblings, &parent->u.stream.declaration_list);
 517                 break;
 518         case NODE_TRACE:
 519                 cds_list_add_tail(&node->siblings, &parent->u.trace.declaration_list);
 520                 break;
 521         case NODE_VARIANT:
 522                 cds_list_add_tail(&node->siblings, &parent->u.variant.declaration_list);
 523                 break;
 524         case NODE_STRUCT:
 525                 cds_list_add_tail(&node->siblings, &parent->u._struct.declaration_list);
 526                 break;
 527         case NODE_TYPEDEF:
 528                 parent->u._typedef.type_specifier_list = node;
 529                 break;
 530         case NODE_TYPEALIAS_TARGET:
 531                 parent->u.typealias_target.type_specifier_list = node;
 532                 break;
 533         case NODE_TYPEALIAS_ALIAS:
 534                 parent->u.typealias_alias.type_specifier_list = node;
 535                 break;
 536         case NODE_TYPE_DECLARATOR:
 537                 parent->u.type_declarator.type = TYPEDEC_NESTED;
 538                 parent->u.type_declarator.u.nested.length = node;
 539                 break;
 540         case NODE_ENUM:
 541                 parent->u._enum.container_type = node;
 542                 break;
 543         case NODE_STRUCT_OR_VARIANT_DECLARATION:
 544                 parent->u.struct_or_variant_declaration.type_specifier_list = node;
 545                 break;
 546         case NODE_TYPE_SPECIFIER:
 547         case NODE_TYPEALIAS:
 548         case NODE_FLOATING_POINT:
 549         case NODE_INTEGER:
 550         case NODE_STRING:
 551         case NODE_CTF_EXPRESSION:
 552         case NODE_POINTER:
 553         case NODE_ENUMERATOR:
 554         case NODE_UNARY_EXPRESSION:
 555                 return -EPERM;
 556
 557         case NODE_UNKNOWN:
 558         default:
 559                 fprintf(stderr, "[error] %s: unknown node type %d\n", __func__,
 560                         (int) parent->type);
 561                 return -EINVAL;
 562         }
 563         return 0;
 564 }
 565
 566 static int reparent_type_declarator(struct ctf_node *node,
 567                                     struct ctf_node *parent)
 568 {
 569         switch (parent->type) {
 570         case NODE_TYPE_DECLARATOR:
 571                 parent->u.type_declarator.type = TYPEDEC_NESTED;
 572                 parent->u.type_declarator.u.nested.type_declarator = node;
 573                 break;
 574         case NODE_STRUCT_OR_VARIANT_DECLARATION:
 575                 _cds_list_splice_tail(&node->tmp_head, &parent->u.struct_or_variant_declaration.type_declarators);
 576                 break;
 577         case NODE_TYPEDEF:
 578                 _cds_list_splice_tail(&node->tmp_head, &parent->u._typedef.type_declarators);
 579                 break;
 580         case NODE_TYPEALIAS_TARGET:
 581                 _cds_list_splice_tail(&node->tmp_head, &parent->u.typealias_target.type_declarators);
 582                 break;
 583         case NODE_TYPEALIAS_ALIAS:
 584                 _cds_list_splice_tail(&node->tmp_head, &parent->u.typealias_alias.type_declarators);
 585                 break;
 586
 587         case NODE_ROOT:
 588         case NODE_EVENT:
 589         case NODE_STREAM:
 590         case NODE_TRACE:
 591         case NODE_VARIANT:
 592         case NODE_STRUCT:
 593         case NODE_TYPEALIAS:
 594         case NODE_ENUM:
 595         case NODE_FLOATING_POINT:
 596         case NODE_INTEGER:
 597         case NODE_STRING:
 598         case NODE_CTF_EXPRESSION:
 599         case NODE_TYPE_SPECIFIER:
 600         case NODE_TYPE_SPECIFIER_LIST:
 601         case NODE_POINTER:
 602         case NODE_ENUMERATOR:
 603         case NODE_UNARY_EXPRESSION:
 604                 return -EPERM;
 605
 606         case NODE_UNKNOWN:
 607         default:
 608                 fprintf(stderr, "[error] %s: unknown node type %d\n", __func__,
 609                         (int) parent->type);
 610                 return -EINVAL;
 611         }
 612         return 0;
 613 }
 614
 615 /*
 616  * set_parent_node
 617  *
 618  * Link node to parent. Returns 0 on success, -EPERM if it is not permitted to
 619  * create the link declared by the input, -ENOENT if node or parent is NULL,
 620  * -EINVAL if there is an internal structure problem.
 621  */
 622 static int set_parent_node(struct ctf_node *node,
 623                          struct ctf_node *parent)
 624 {
 625         if (!node || !parent)
 626                 return -ENOENT;
 627
 628         /* Note: Linking to parent will be done only by an external visitor */
 629
 630         switch (node->type) {
 631         case NODE_ROOT:
 632                 fprintf(stderr, "[error] %s: trying to reparent root node\n", __func__);
 633                 return -EINVAL;
 634
 635         case NODE_EVENT:
 636                 if (parent->type == NODE_ROOT) {
 637                         _cds_list_splice_tail(&node->tmp_head, &parent->u.root.event);
 638                 } else {
 639                         return -EPERM;
 640                 }
 641                 break;
 642         case NODE_STREAM:
 643                 if (parent->type == NODE_ROOT) {
 644                         _cds_list_splice_tail(&node->tmp_head, &parent->u.root.stream);
 645                 } else {
 646                         return -EPERM;
 647                 }
 648                 break;
 649         case NODE_TRACE:
 650                 if (parent->type == NODE_ROOT) {
 651                         _cds_list_splice_tail(&node->tmp_head, &parent->u.root.trace);
 652                 } else {
 653                         return -EPERM;
 654                 }
 655                 break;
 656
 657         case NODE_CTF_EXPRESSION:
 658                 return reparent_ctf_expression(node, parent);
 659         case NODE_UNARY_EXPRESSION:
 660                 if (parent->type == NODE_TYPE_DECLARATOR)
 661                         parent->u.type_declarator.bitfield_len = node;
 662                 else
 663                         return -EPERM;
 664                 break;
 665
 666         case NODE_TYPEDEF:
 667                 return reparent_typedef(node, parent);
 668         case NODE_TYPEALIAS_TARGET:
 669                 if (parent->type == NODE_TYPEALIAS)
 670                         parent->u.typealias.target = node;
 671                 else
 672                         return -EINVAL;
 673         case NODE_TYPEALIAS_ALIAS:
 674                 if (parent->type == NODE_TYPEALIAS)
 675                         parent->u.typealias.alias = node;
 676                 else
 677                         return -EINVAL;
 678         case NODE_TYPEALIAS:
 679                 return reparent_typealias(node, parent);
 680
 681         case NODE_POINTER:
 682                 if (parent->type == NODE_TYPE_DECLARATOR) {
 683                         _cds_list_splice_tail(&node->tmp_head, &parent->u.type_declarator.pointers);
 684                 } else
 685                         return -EPERM;
 686                 break;
 687         case NODE_TYPE_DECLARATOR:
 688                 return reparent_type_declarator(node, parent);
 689
 690         case NODE_TYPE_SPECIFIER_LIST:
 691                 return reparent_type_specifier_list(node, parent);
 692
 693         case NODE_TYPE_SPECIFIER:
 694                 return reparent_type_specifier(node, parent);
 695
 696         case NODE_FLOATING_POINT:
 697         case NODE_INTEGER:
 698         case NODE_STRING:
 699         case NODE_ENUM:
 700         case NODE_VARIANT:
 701         case NODE_STRUCT:
 702                 return -EINVAL; /* Dealt with internally within grammar */
 703
 704         case NODE_ENUMERATOR:
 705                 if (parent->type == NODE_ENUM) {
 706                         _cds_list_splice_tail(&node->tmp_head, &parent->u._enum.enumerator_list);
 707                 } else {
 708                         return -EPERM;
 709                 }
 710                 break;
 711         case NODE_STRUCT_OR_VARIANT_DECLARATION:
 712                 switch (parent->type) {
 713                 case NODE_STRUCT:
 714                         _cds_list_splice_tail(&node->tmp_head, &parent->u._struct.declaration_list);
 715                         break;
 716                 case NODE_VARIANT:
 717                         _cds_list_splice_tail(&node->tmp_head, &parent->u.variant.declaration_list);
 718                         break;
 719                 default:
 720                         return -EINVAL;
 721                 }
 722                 break;
 723
 724         case NODE_UNKNOWN:
 725         default:
 726                 fprintf(stderr, "[error] %s: unknown node type %d\n", __func__,
 727                         (int) parent->type);
 728                 return -EINVAL;
 729         }
 730         return 0;
 731 }
 732
 733 void yyerror(struct ctf_scanner *scanner, const char *str)
 734 {
 735         fprintf(stderr, "error %s\n", str);
 736 }
 737
 738 int yywrap(void)
 739 {
 740         return 1;
 741 }
 742
 743 #define reparent_error(scanner, str)                            \
 744 do {                                                            \
 745         yyerror(scanner, YY_("reparent_error: " str "\n"));     \
 746         YYERROR;                                                \
 747 } while (0)
 748
 749 static void free_strings(struct cds_list_head *list)
 750 {
 751         struct gc_string *gstr, *tmp;
 752
 753         cds_list_for_each_entry_safe(gstr, tmp, list, gc)
 754                 free(gstr);
 755 }
 756
 757 static struct ctf_ast *ctf_ast_alloc(void)
 758 {
 759         struct ctf_ast *ast;
 760
 761         ast = malloc(sizeof(*ast));
 762         if (!ast)
 763                 return NULL;
 764         memset(ast, 0, sizeof(*ast));
 765         CDS_INIT_LIST_HEAD(&ast->allocated_nodes);
 766         ast->root.type = NODE_ROOT;
 767         CDS_INIT_LIST_HEAD(&ast->root.tmp_head);
 768         CDS_INIT_LIST_HEAD(&ast->root.u.root.declaration_list);
 769         CDS_INIT_LIST_HEAD(&ast->root.u.root.trace);
 770         CDS_INIT_LIST_HEAD(&ast->root.u.root.stream);
 771         CDS_INIT_LIST_HEAD(&ast->root.u.root.event);
 772         return ast;
 773 }
 774
 775 static void ctf_ast_free(struct ctf_ast *ast)
 776 {
 777         struct ctf_node *node, *tmp;
 778
 779         cds_list_for_each_entry_safe(node, tmp, &ast->allocated_nodes, gc)
 780                 free(node);
 781 }
 782
 783 int ctf_scanner_append_ast(struct ctf_scanner *scanner)
 784 {
 785         return yyparse(scanner);
 786 }
 787
 788 struct ctf_scanner *ctf_scanner_alloc(FILE *input)
 789 {
 790         struct ctf_scanner *scanner;
 791         int ret;
 792
 793         scanner = malloc(sizeof(*scanner));
 794         if (!scanner)
 795                 return NULL;
 796         memset(scanner, 0, sizeof(*scanner));
 797
 798         ret = yylex_init_extra(scanner, &scanner->scanner);
 799         if (ret) {
 800                 fprintf(stderr, "yylex_init error\n");
 801                 goto cleanup_scanner;
 802         }
 803         yyset_in(input, scanner);
 804
 805         scanner->ast = ctf_ast_alloc();
 806         if (!scanner->ast)
 807                 goto cleanup_lexer;
 808         init_scope(&scanner->root_scope, NULL);
 809         scanner->cs = &scanner->root_scope;
 810         CDS_INIT_LIST_HEAD(&scanner->allocated_strings);
 811
 812         return scanner;
 813
 814 cleanup_lexer:
 815         ret = yylex_destroy(scanner->scanner);
 816         if (!ret)
 817                 fprintf(stderr, "yylex_destroy error\n");
 818 cleanup_scanner:
 819         free(scanner);
 820         return NULL;
 821 }
 822
 823 void ctf_scanner_free(struct ctf_scanner *scanner)
 824 {
 825         int ret;
 826
 827         finalize_scope(&scanner->root_scope);
 828         free_strings(&scanner->allocated_strings);
 829         ctf_ast_free(scanner->ast);
 830         ret = yylex_destroy(scanner->scanner);
 831         if (ret)
 832                 fprintf(stderr, "yylex_destroy error\n");
 833         free(scanner);
 834 }
 835
 836 %}
 837
 838 %define api.pure
 839         /* %locations */
 840 %parse-param {struct ctf_scanner *scanner}
 841 %lex-param {struct ctf_scanner *scanner}
 842 %start file
 843 %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
 844 %token <gs> IDENTIFIER ID_TYPE
 845 %token ERROR
 846 %union
 847 {
 848         long long ll;
 849         char c;
 850         struct gc_string *gs;
 851         struct ctf_node *n;
 852 }
 853
 854 %type <gs> keywords
 855 %type <gs> s_char s_char_sequence c_char c_char_sequence
 856
 857 %type <n> postfix_expression unary_expression unary_expression_or_range
 858
 859 %type <n> declaration
 860 %type <n> event_declaration
 861 %type <n> stream_declaration
 862 %type <n> trace_declaration
 863 %type <n> declaration_specifiers
 864 %type <n> alias_declaration_specifiers
 865
 866 %type <n> type_declarator_list
 867 %type <n> type_specifier
 868 %type <n> struct_type_specifier
 869 %type <n> variant_type_specifier
 870 %type <n> declaration_specifiers_or_integer_constant
 871 %type <n> enum_type_specifier
 872 %type <n> struct_or_variant_declaration_list
 873 %type <n> struct_or_variant_declaration
 874 %type <n> struct_or_variant_declarator_list
 875 %type <n> struct_or_variant_declarator
 876 %type <n> enumerator_list
 877 %type <n> enumerator
 878 %type <n> abstract_declarator_list
 879 %type <n> abstract_declarator
 880 %type <n> direct_abstract_declarator
 881 %type <n> alias_abstract_declarator_list
 882 %type <n> alias_abstract_declarator
 883 %type <n> direct_alias_abstract_declarator
 884 %type <n> declarator
 885 %type <n> direct_declarator
 886 %type <n> type_declarator
 887 %type <n> direct_type_declarator
 888 %type <n> pointer
 889 %type <n> ctf_assignment_expression_list
 890 %type <n> ctf_assignment_expression
 891
 892 %%
 893
 894 file:
 895                 declaration
 896                 {
 897                         if (set_parent_node($1, &ctf_scanner_get_ast(scanner)->root))
 898                                 reparent_error(scanner, "error reparenting to root");
 899                 }
 900         |       file declaration
 901                 {
 902                         if (set_parent_node($2, &ctf_scanner_get_ast(scanner)->root))
 903                                 reparent_error(scanner, "error reparenting to root");
 904                 }
 905         ;
 906
 907 keywords:
 908                 VOID
 909                 {       $$ = yylval.gs;         }
 910         |       CHAR
 911                 {       $$ = yylval.gs;         }
 912         |       SHORT
 913                 {       $$ = yylval.gs;         }
 914         |       INT
 915                 {       $$ = yylval.gs;         }
 916         |       LONG
 917                 {       $$ = yylval.gs;         }
 918         |       FLOAT
 919                 {       $$ = yylval.gs;         }
 920         |       DOUBLE
 921                 {       $$ = yylval.gs;         }
 922         |       SIGNED
 923                 {       $$ = yylval.gs;         }
 924         |       UNSIGNED
 925                 {       $$ = yylval.gs;         }
 926         |       _BOOL
 927                 {       $$ = yylval.gs;         }
 928         |       _COMPLEX
 929                 {       $$ = yylval.gs;         }
 930         |       _IMAGINARY
 931                 {       $$ = yylval.gs;         }
 932         |       FLOATING_POINT
 933                 {       $$ = yylval.gs;         }
 934         |       INTEGER
 935                 {       $$ = yylval.gs;         }
 936         |       STRING
 937                 {       $$ = yylval.gs;         }
 938         |       ENUM
 939                 {       $$ = yylval.gs;         }
 940         |       VARIANT
 941                 {       $$ = yylval.gs;         }
 942         |       STRUCT
 943                 {       $$ = yylval.gs;         }
 944         |       CONST
 945                 {       $$ = yylval.gs;         }
 946         |       TYPEDEF
 947                 {       $$ = yylval.gs;         }
 948         |       EVENT
 949                 {       $$ = yylval.gs;         }
 950         |       STREAM
 951                 {       $$ = yylval.gs;         }
 952         |       TRACE
 953                 {       $$ = yylval.gs;         }
 954         ;
 955
 956 /* 1.5 Constants */
 957
 958 c_char_sequence:
 959                 c_char
 960                 {       $$ = $1;                                        }
 961         |       c_char_sequence c_char
 962                 {       $$ = gc_string_append(scanner, $1, $2);         }
 963         ;
 964
 965 c_char:
 966                 CHAR_STRING_TOKEN
 967                 {       $$ = yylval.gs;                                 }
 968         |       ESCSEQ
 969                 {
 970                         reparent_error(scanner, "escape sequences not supported yet");
 971                 }
 972         ;
 973
 974 /* 1.6 String literals */
 975
 976 s_char_sequence:
 977                 s_char
 978                 {       $$ = $1;                                        }
 979         |       s_char_sequence s_char
 980                 {       $$ = gc_string_append(scanner, $1, $2);         }
 981         ;
 982
 983 s_char:
 984                 CHAR_STRING_TOKEN
 985                 {       $$ = yylval.gs;                                 }
 986         |       ESCSEQ
 987                 {
 988                         reparent_error(scanner, "escape sequences not supported yet");
 989                 }
 990         ;
 991
 992 /* 2: Phrase structure grammar */
 993
 994 postfix_expression:
 995                 IDENTIFIER
 996                 {
 997                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
 998                         $$->u.unary_expression.type = UNARY_STRING;
 999                         $$->u.unary_expression.u.string = yylval.gs->s;
1000                 }
1001         |       ID_TYPE
1002                 {
1003                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1004                         $$->u.unary_expression.type = UNARY_STRING;
1005                         $$->u.unary_expression.u.string = yylval.gs->s;
1006                 }
1007         |       keywords
1008                 {
1009                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1010                         $$->u.unary_expression.type = UNARY_STRING;
1011                         $$->u.unary_expression.u.string = yylval.gs->s;
1012                 }
1013
1014         |       DECIMAL_CONSTANT
1015                 {
1016                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1017                         $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
1018                         sscanf(yylval.gs->s, "%" PRIu64,
1019                                &$$->u.unary_expression.u.unsigned_constant);
1020                 }
1021         |       OCTAL_CONSTANT
1022                 {
1023                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1024                         $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
1025                         sscanf(yylval.gs->s, "0%" PRIo64,
1026                                &$$->u.unary_expression.u.unsigned_constant);
1027                 }
1028         |       HEXADECIMAL_CONSTANT
1029                 {
1030                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1031                         $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
1032                         sscanf(yylval.gs->s, "0x%" PRIx64,
1033                                &$$->u.unary_expression.u.unsigned_constant);
1034                 }
1035         |       STRING_LITERAL_START DQUOTE
1036                 {
1037                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1038                         $$->u.unary_expression.type = UNARY_STRING;
1039                         $$->u.unary_expression.u.string = "";
1040                 }
1041         |       STRING_LITERAL_START s_char_sequence DQUOTE
1042                 {
1043                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1044                         $$->u.unary_expression.type = UNARY_STRING;
1045                         $$->u.unary_expression.u.string = $2->s;
1046                 }
1047         |       CHARACTER_CONSTANT_START c_char_sequence SQUOTE
1048                 {
1049                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1050                         $$->u.unary_expression.type = UNARY_STRING;
1051                         $$->u.unary_expression.u.string = $2->s;
1052                 }
1053         |       LPAREN unary_expression RPAREN
1054                 {
1055                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1056                         $$->u.unary_expression.type = UNARY_NESTED;
1057                         $$->u.unary_expression.u.nested_exp = $2;
1058                 }
1059         |       postfix_expression LSBRAC unary_expression RSBRAC
1060                 {
1061                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1062                         $$->u.unary_expression.type = UNARY_SBRAC;
1063                         $$->u.unary_expression.u.sbrac_exp = $3;
1064                         cds_list_splice(&($1)->tmp_head, &($$)->tmp_head);
1065                         cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1066                 }
1067         |       postfix_expression DOT IDENTIFIER
1068                 {
1069                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1070                         $$->u.unary_expression.type = UNARY_STRING;
1071                         $$->u.unary_expression.u.string = yylval.gs->s;
1072                         $$->u.unary_expression.link = UNARY_DOTLINK;
1073                         cds_list_splice(&($1)->tmp_head, &($$)->tmp_head);
1074                         cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1075                 }
1076         |       postfix_expression DOT ID_TYPE
1077                 {
1078                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1079                         $$->u.unary_expression.type = UNARY_STRING;
1080                         $$->u.unary_expression.u.string = yylval.gs->s;
1081                         $$->u.unary_expression.link = UNARY_DOTLINK;
1082                         cds_list_splice(&($1)->tmp_head, &($$)->tmp_head);
1083                         cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1084                 }
1085         |       postfix_expression RARROW IDENTIFIER
1086                 {
1087                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1088                         $$->u.unary_expression.type = UNARY_STRING;
1089                         $$->u.unary_expression.u.string = yylval.gs->s;
1090                         $$->u.unary_expression.link = UNARY_ARROWLINK;
1091                         cds_list_splice(&($1)->tmp_head, &($$)->tmp_head);
1092                         cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1093                 }
1094         |       postfix_expression RARROW ID_TYPE
1095                 {
1096                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1097                         $$->u.unary_expression.type = UNARY_STRING;
1098                         $$->u.unary_expression.u.string = yylval.gs->s;
1099                         $$->u.unary_expression.link = UNARY_ARROWLINK;
1100                         cds_list_splice(&($1)->tmp_head, &($$)->tmp_head);
1101                         cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1102                 }
1103         ;
1104
1105 unary_expression:
1106                 postfix_expression
1107                 {       $$ = $1;                                }
1108         |       PLUS postfix_expression
1109                 {       $$ = $2;                                }
1110         |       MINUS postfix_expression
1111                 {
1112                         $$ = $2;
1113                         if ($$->u.unary_expression.type != UNARY_SIGNED_CONSTANT
1114                                 && $$->u.unary_expression.type != UNARY_UNSIGNED_CONSTANT)
1115                                 reparent_error(scanner, "expecting numeric constant");
1116
1117                         if ($$->u.unary_expression.type == UNARY_UNSIGNED_CONSTANT) {
1118                                 $$->u.unary_expression.type = UNARY_SIGNED_CONSTANT;
1119                                 $$->u.unary_expression.u.signed_constant =
1120                                         -($$->u.unary_expression.u.unsigned_constant);
1121                         } else {
1122                                 $$->u.unary_expression.u.signed_constant =
1123                                         -($$->u.unary_expression.u.signed_constant);
1124                         }
1125                 }
1126         ;
1127
1128 unary_expression_or_range:
1129                 unary_expression DOTDOTDOT unary_expression
1130                 {
1131                         $$ = $1;
1132                         _cds_list_splice_tail(&($3)->tmp_head, &($$)->tmp_head);
1133                         $3->u.unary_expression.link = UNARY_DOTDOTDOT;
1134                 }
1135         |       unary_expression
1136                 {       $$ = $1;                }
1137         ;
1138
1139 /* 2.2: Declarations */
1140
1141 declaration:
1142                 declaration_specifiers SEMICOLON
1143                 {       $$ = $1;        }
1144         |       event_declaration
1145                 {       $$ = $1;        }
1146         |       stream_declaration
1147                 {       $$ = $1;        }
1148         |       trace_declaration
1149                 {       $$ = $1;        }
1150         |       declaration_specifiers TYPEDEF declaration_specifiers type_declarator_list SEMICOLON
1151                 {
1152                         struct ctf_node *list;
1153
1154                         $$ = make_node(scanner, NODE_TYPEDEF);
1155                         list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1156                         $$->u._typedef.type_specifier_list = list;
1157                         _cds_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1158                         _cds_list_splice_tail(&($3)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1159                         _cds_list_splice_tail(&($4)->tmp_head, &($$)->u._typedef.type_declarators);
1160                 }
1161         |       TYPEDEF declaration_specifiers type_declarator_list SEMICOLON
1162                 {
1163                         struct ctf_node *list;
1164
1165                         $$ = make_node(scanner, NODE_TYPEDEF);
1166                         list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1167                         $$->u._typedef.type_specifier_list = list;
1168                         _cds_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1169                         _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
1170                 }
1171         |       declaration_specifiers TYPEDEF type_declarator_list SEMICOLON
1172                 {
1173                         struct ctf_node *list;
1174
1175                         $$ = make_node(scanner, NODE_TYPEDEF);
1176                         list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1177                         $$->u._typedef.type_specifier_list = list;
1178                         _cds_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1179                         _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
1180                 }
1181         |       TYPEALIAS declaration_specifiers abstract_declarator_list COLON alias_declaration_specifiers alias_abstract_declarator_list SEMICOLON
1182                 {
1183                         struct ctf_node *list;
1184
1185                         $$ = make_node(scanner, NODE_TYPEALIAS);
1186                         $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
1187                         $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
1188
1189                         list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1190                         $$->u.typealias.target->u.typealias_target.type_specifier_list = list;
1191                         _cds_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1192                         _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.typealias.target->u.typealias_target.type_declarators);
1193
1194                         list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1195                         $$->u.typealias.alias->u.typealias_alias.type_specifier_list = list;
1196                         _cds_list_splice_tail(&($5)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1197                         _cds_list_splice_tail(&($6)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
1198                 }
1199         ;
1200
1201 event_declaration:
1202                 event_declaration_begin event_declaration_end
1203                 {
1204                         $$ = make_node(scanner, NODE_EVENT);
1205                 }
1206         |       event_declaration_begin ctf_assignment_expression_list event_declaration_end
1207                 {
1208                         $$ = make_node(scanner, NODE_EVENT);
1209                         if (set_parent_node($2, $$))
1210                                 reparent_error(scanner, "event_declaration");
1211                 }
1212         ;
1213
1214 event_declaration_begin:
1215                 EVENT LBRAC
1216                 {       push_scope(scanner);    }
1217         ;
1218
1219 event_declaration_end:
1220                 RBRAC SEMICOLON
1221                 {       pop_scope(scanner);     }
1222         ;
1223
1224
1225 stream_declaration:
1226                 stream_declaration_begin stream_declaration_end
1227                 {
1228                         $$ = make_node(scanner, NODE_STREAM);
1229                 }
1230         |       stream_declaration_begin ctf_assignment_expression_list stream_declaration_end
1231                 {
1232                         $$ = make_node(scanner, NODE_STREAM);
1233                         if (set_parent_node($2, $$))
1234                                 reparent_error(scanner, "stream_declaration");
1235                 }
1236         ;
1237
1238 stream_declaration_begin:
1239                 STREAM LBRAC
1240                 {       push_scope(scanner);    }
1241         ;
1242
1243 stream_declaration_end:
1244                 RBRAC SEMICOLON
1245                 {       pop_scope(scanner);     }
1246         ;
1247
1248
1249 trace_declaration:
1250                 trace_declaration_begin trace_declaration_end
1251                 {
1252                         $$ = make_node(scanner, NODE_TRACE);
1253                 }
1254         |       trace_declaration_begin ctf_assignment_expression_list trace_declaration_end
1255                 {
1256                         $$ = make_node(scanner, NODE_TRACE);
1257                         if (set_parent_node($2, $$))
1258                                 reparent_error(scanner, "trace_declaration");
1259                 }
1260         ;
1261
1262 trace_declaration_begin:
1263                 TRACE LBRAC
1264                 {       push_scope(scanner);    }
1265         ;
1266
1267 trace_declaration_end:
1268                 RBRAC SEMICOLON
1269                 {       pop_scope(scanner);     }
1270         ;
1271
1272 declaration_specifiers:
1273                 CONST
1274                 {
1275                         struct ctf_node *node;
1276
1277                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1278                         node = make_node(scanner, NODE_TYPE_SPECIFIER);
1279                         node->u.type_specifier.type = TYPESPEC_CONST;
1280                         cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
1281                 }
1282         |       type_specifier
1283                 {
1284                         struct ctf_node *node;
1285
1286                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1287                         node = $1;
1288                         cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
1289                 }
1290         |       declaration_specifiers CONST
1291                 {
1292                         struct ctf_node *node;
1293
1294                         $$ = $1;
1295                         node = make_node(scanner, NODE_TYPE_SPECIFIER);
1296                         node->u.type_specifier.type = TYPESPEC_CONST;
1297                         cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
1298                 }
1299         |       declaration_specifiers type_specifier
1300                 {
1301                         $$ = $1;
1302                         cds_list_add_tail(&($2)->siblings, &($$)->u.type_specifier_list.head);
1303                 }
1304         ;
1305
1306 type_declarator_list:
1307                 type_declarator
1308                 {       $$ = $1;        }
1309         |       type_declarator_list COMMA type_declarator
1310                 {
1311                         $$ = $1;
1312                         cds_list_add_tail(&($3)->siblings, &($$)->tmp_head);
1313                 }
1314         ;
1315
1316 type_specifier:
1317                 VOID
1318                 {
1319                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1320                         $$->u.type_specifier.type = TYPESPEC_VOID;
1321                 }
1322         |       CHAR
1323                 {
1324                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1325                         $$->u.type_specifier.type = TYPESPEC_CHAR;
1326                 }
1327         |       SHORT
1328                 {
1329                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1330                         $$->u.type_specifier.type = TYPESPEC_SHORT;
1331                 }
1332         |       INT
1333                 {
1334                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1335                         $$->u.type_specifier.type = TYPESPEC_INT;
1336                 }
1337         |       LONG
1338                 {
1339                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1340                         $$->u.type_specifier.type = TYPESPEC_LONG;
1341                 }
1342         |       FLOAT
1343                 {
1344                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1345                         $$->u.type_specifier.type = TYPESPEC_FLOAT;
1346                 }
1347         |       DOUBLE
1348                 {
1349                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1350                         $$->u.type_specifier.type = TYPESPEC_DOUBLE;
1351                 }
1352         |       SIGNED
1353                 {
1354                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1355                         $$->u.type_specifier.type = TYPESPEC_SIGNED;
1356                 }
1357         |       UNSIGNED
1358                 {
1359                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1360                         $$->u.type_specifier.type = TYPESPEC_UNSIGNED;
1361                 }
1362         |       _BOOL
1363                 {
1364                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1365                         $$->u.type_specifier.type = TYPESPEC_BOOL;
1366                 }
1367         |       _COMPLEX
1368                 {
1369                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1370                         $$->u.type_specifier.type = TYPESPEC_COMPLEX;
1371                 }
1372         |       _IMAGINARY
1373                 {
1374                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1375                         $$->u.type_specifier.type = TYPESPEC_IMAGINARY;
1376                 }
1377         |       ID_TYPE
1378                 {
1379                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1380                         $$->u.type_specifier.type = TYPESPEC_ID_TYPE;
1381                         $$->u.type_specifier.id_type = yylval.gs->s;
1382                 }
1383         |       FLOATING_POINT LBRAC RBRAC
1384                 {
1385                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1386                         $$->u.type_specifier.type = TYPESPEC_FLOATING_POINT;
1387                         $$->u.type_specifier.node = make_node(scanner, NODE_FLOATING_POINT);
1388                 }
1389         |       FLOATING_POINT LBRAC ctf_assignment_expression_list RBRAC
1390                 {
1391                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1392                         $$->u.type_specifier.type = TYPESPEC_FLOATING_POINT;
1393                         $$->u.type_specifier.node = make_node(scanner, NODE_FLOATING_POINT);
1394                         if (set_parent_node($3, $$->u.type_specifier.node))
1395                                 reparent_error(scanner, "floating point reparent error");
1396                 }
1397         |       INTEGER LBRAC RBRAC
1398                 {
1399                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1400                         $$->u.type_specifier.type = TYPESPEC_INTEGER;
1401                         $$->u.type_specifier.node = make_node(scanner, NODE_INTEGER);
1402                 }
1403         |       INTEGER LBRAC ctf_assignment_expression_list RBRAC
1404                 {
1405                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1406                         $$->u.type_specifier.type = TYPESPEC_INTEGER;
1407                         $$->u.type_specifier.node = make_node(scanner, NODE_INTEGER);
1408                         if (set_parent_node($3, $$->u.type_specifier.node))
1409                                 reparent_error(scanner, "integer reparent error");
1410                 }
1411         |       STRING LBRAC RBRAC
1412                 {
1413                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1414                         $$->u.type_specifier.type = TYPESPEC_STRING;
1415                         $$->u.type_specifier.node = make_node(scanner, NODE_STRING);
1416                 }
1417         |       STRING LBRAC ctf_assignment_expression_list RBRAC
1418                 {
1419                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1420                         $$->u.type_specifier.type = TYPESPEC_STRING;
1421                         $$->u.type_specifier.node = make_node(scanner, NODE_STRING);
1422                         if (set_parent_node($3, $$->u.type_specifier.node))
1423                                 reparent_error(scanner, "string reparent error");
1424                 }
1425         |       ENUM enum_type_specifier
1426                 {
1427                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1428                         $$->u.type_specifier.type = TYPESPEC_ENUM;
1429                         $$->u.type_specifier.node = $2;
1430                 }
1431         |       VARIANT variant_type_specifier
1432                 {
1433                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1434                         $$->u.type_specifier.type = TYPESPEC_VARIANT;
1435                         $$->u.type_specifier.node = $2;
1436                         $$ = $2;
1437                 }
1438         |       STRUCT struct_type_specifier
1439                 {
1440                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER);
1441                         $$->u.type_specifier.type = TYPESPEC_STRUCT;
1442                         $$->u.type_specifier.node = $2;
1443                         $$ = $2;
1444                 }
1445         ;
1446
1447 struct_type_specifier:
1448                 struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end
1449                 {
1450                         $$ = make_node(scanner, NODE_STRUCT);
1451                         $$->u._struct.has_body = 1;
1452                         if (set_parent_node($2, $$))
1453                                 reparent_error(scanner, "struct reparent error");
1454                 }
1455         |       IDENTIFIER struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end
1456                 {
1457                         $$ = make_node(scanner, NODE_STRUCT);
1458                         $$->u._struct.has_body = 1;
1459                         $$->u._struct.name = $1->s;
1460                         if (set_parent_node($3, $$))
1461                                 reparent_error(scanner, "struct reparent error");
1462                 }
1463         |       ID_TYPE struct_declaration_begin struct_or_variant_declaration_list struct_declaration_end
1464                 {
1465                         $$ = make_node(scanner, NODE_STRUCT);
1466                         $$->u._struct.has_body = 1;
1467                         $$->u._struct.name = $1->s;
1468                         if (set_parent_node($3, $$))
1469                                 reparent_error(scanner, "struct reparent error");
1470                 }
1471         |       IDENTIFIER
1472                 {
1473                         $$ = make_node(scanner, NODE_STRUCT);
1474                         $$->u._struct.has_body = 0;
1475                         $$->u._struct.name = $1->s;
1476                 }
1477         |       ID_TYPE
1478                 {
1479                         $$ = make_node(scanner, NODE_STRUCT);
1480                         $$->u._struct.has_body = 0;
1481                         $$->u._struct.name = $1->s;
1482                 }
1483         ;
1484
1485 struct_declaration_begin:
1486                 LBRAC
1487                 {       push_scope(scanner);    }
1488         ;
1489
1490 struct_declaration_end:
1491                 RBRAC
1492                 {       pop_scope(scanner);     }
1493         ;
1494
1495 variant_type_specifier:
1496                 variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1497                 {
1498                         $$ = make_node(scanner, NODE_VARIANT);
1499                         $$->u.variant.has_body = 1;
1500                         if (set_parent_node($2, $$))
1501                                 reparent_error(scanner, "variant reparent error");
1502                 }
1503         |       LT IDENTIFIER GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1504                 {
1505                         $$ = make_node(scanner, NODE_VARIANT);
1506                         $$->u.variant.has_body = 1;
1507                         $$->u.variant.choice = $2->s;
1508                         if (set_parent_node($5, $$))
1509                                 reparent_error(scanner, "variant reparent error");
1510                 }
1511         |       LT ID_TYPE GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1512                 {
1513                         $$ = make_node(scanner, NODE_VARIANT);
1514                         $$->u.variant.has_body = 1;
1515                         $$->u.variant.choice = $2->s;
1516                         if (set_parent_node($5, $$))
1517                                 reparent_error(scanner, "variant reparent error");
1518                 }
1519         |       IDENTIFIER variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1520                 {
1521                         $$ = make_node(scanner, NODE_VARIANT);
1522                         $$->u.variant.has_body = 1;
1523                         $$->u.variant.name = $1->s;
1524                         if (set_parent_node($3, $$))
1525                                 reparent_error(scanner, "variant reparent error");
1526                 }
1527         |       IDENTIFIER LT IDENTIFIER GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1528                 {
1529                         $$ = make_node(scanner, NODE_VARIANT);
1530                         $$->u.variant.has_body = 1;
1531                         $$->u.variant.name = $1->s;
1532                         $$->u.variant.choice = $3->s;
1533                         if (set_parent_node($6, $$))
1534                                 reparent_error(scanner, "variant reparent error");
1535                 }
1536         |       IDENTIFIER LT IDENTIFIER GT
1537                 {
1538                         $$ = make_node(scanner, NODE_VARIANT);
1539                         $$->u.variant.has_body = 0;
1540                         $$->u.variant.name = $1->s;
1541                         $$->u.variant.choice = $3->s;
1542                 }
1543         |       IDENTIFIER LT ID_TYPE GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1544                 {
1545                         $$ = make_node(scanner, NODE_VARIANT);
1546                         $$->u.variant.has_body = 1;
1547                         $$->u.variant.name = $1->s;
1548                         $$->u.variant.choice = $3->s;
1549                         if (set_parent_node($6, $$))
1550                                 reparent_error(scanner, "variant reparent error");
1551                 }
1552         |       IDENTIFIER LT ID_TYPE GT
1553                 {
1554                         $$ = make_node(scanner, NODE_VARIANT);
1555                         $$->u.variant.has_body = 0;
1556                         $$->u.variant.name = $1->s;
1557                         $$->u.variant.choice = $3->s;
1558                 }
1559         |       ID_TYPE variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1560                 {
1561                         $$ = make_node(scanner, NODE_VARIANT);
1562                         $$->u.variant.has_body = 1;
1563                         $$->u.variant.name = $1->s;
1564                         if (set_parent_node($3, $$))
1565                                 reparent_error(scanner, "variant reparent error");
1566                 }
1567         |       ID_TYPE LT IDENTIFIER GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1568                 {
1569                         $$ = make_node(scanner, NODE_VARIANT);
1570                         $$->u.variant.has_body = 1;
1571                         $$->u.variant.name = $1->s;
1572                         $$->u.variant.choice = $3->s;
1573                         if (set_parent_node($6, $$))
1574                                 reparent_error(scanner, "variant reparent error");
1575                 }
1576         |       ID_TYPE LT IDENTIFIER GT
1577                 {
1578                         $$ = make_node(scanner, NODE_VARIANT);
1579                         $$->u.variant.has_body = 0;
1580                         $$->u.variant.name = $1->s;
1581                         $$->u.variant.choice = $3->s;
1582                 }
1583         |       ID_TYPE LT ID_TYPE GT variant_declaration_begin struct_or_variant_declaration_list variant_declaration_end
1584                 {
1585                         $$ = make_node(scanner, NODE_VARIANT);
1586                         $$->u.variant.has_body = 1;
1587                         $$->u.variant.name = $1->s;
1588                         $$->u.variant.choice = $3->s;
1589                         if (set_parent_node($6, $$))
1590                                 reparent_error(scanner, "variant reparent error");
1591                 }
1592         |       ID_TYPE LT ID_TYPE GT
1593                 {
1594                         $$ = make_node(scanner, NODE_VARIANT);
1595                         $$->u.variant.has_body = 0;
1596                         $$->u.variant.name = $1->s;
1597                         $$->u.variant.choice = $3->s;
1598                 }
1599         ;
1600
1601 variant_declaration_begin:
1602                 LBRAC
1603                 {       push_scope(scanner);    }
1604         ;
1605
1606 variant_declaration_end:
1607                 RBRAC
1608                 {       pop_scope(scanner);     }
1609         ;
1610
1611 declaration_specifiers_or_integer_constant:
1612                 declaration_specifiers
1613                 {       $$ = $1;                }
1614         |       DECIMAL_CONSTANT
1615                 {
1616                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1617                         $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
1618                         sscanf(yylval.gs->s, "%" PRIu64,
1619                                &$$->u.unary_expression.u.unsigned_constant);
1620                 }
1621         |       OCTAL_CONSTANT
1622                 {
1623                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1624                         $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
1625                         sscanf(yylval.gs->s, "0%" PRIo64,
1626                                &$$->u.unary_expression.u.unsigned_constant);
1627                 }
1628         |       HEXADECIMAL_CONSTANT
1629                 {
1630                         $$ = make_node(scanner, NODE_UNARY_EXPRESSION);
1631                         $$->u.unary_expression.type = UNARY_UNSIGNED_CONSTANT;
1632                         sscanf(yylval.gs->s, "0x%" PRIx64,
1633                                &$$->u.unary_expression.u.unsigned_constant);
1634                 }
1635         ;
1636
1637 enum_type_specifier:
1638                 LBRAC enumerator_list RBRAC
1639                 {
1640                         $$ = make_node(scanner, NODE_ENUM);
1641                         $$->u._enum.has_body = 1;
1642                         _cds_list_splice_tail(&($2)->tmp_head, &($$)->u._enum.enumerator_list);
1643                 }
1644         |       LT declaration_specifiers GT LBRAC enumerator_list RBRAC
1645                 {
1646                         $$ = make_node(scanner, NODE_ENUM);
1647                         $$->u._enum.has_body = 1;
1648                         ($$)->u._enum.container_type = $2;
1649                         _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
1650                 }
1651         |       IDENTIFIER LBRAC enumerator_list RBRAC
1652                 {
1653                         $$ = make_node(scanner, NODE_ENUM);
1654                         $$->u._enum.has_body = 1;
1655                         $$->u._enum.enum_id = $1->s;
1656                         _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
1657                 }
1658         |       IDENTIFIER LT declaration_specifiers GT LBRAC enumerator_list RBRAC
1659                 {
1660                         $$ = make_node(scanner, NODE_ENUM);
1661                         $$->u._enum.has_body = 1;
1662                         $$->u._enum.enum_id = $1->s;
1663                         ($$)->u._enum.container_type = $3;
1664                         _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
1665                 }
1666         |       ID_TYPE LBRAC enumerator_list RBRAC
1667                 {
1668                         $$ = make_node(scanner, NODE_ENUM);
1669                         $$->u._enum.has_body = 1;
1670                         $$->u._enum.enum_id = $1->s;
1671                         _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
1672                 }
1673         |       ID_TYPE LT declaration_specifiers GT LBRAC enumerator_list RBRAC
1674                 {
1675                         $$ = make_node(scanner, NODE_ENUM);
1676                         $$->u._enum.has_body = 1;
1677                         $$->u._enum.enum_id = $1->s;
1678                         ($$)->u._enum.container_type = $3;
1679                         _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
1680                 }
1681         |       LBRAC enumerator_list COMMA RBRAC
1682                 {
1683                         $$ = make_node(scanner, NODE_ENUM);
1684                         $$->u._enum.has_body = 1;
1685                         _cds_list_splice_tail(&($2)->tmp_head, &($$)->u._enum.enumerator_list);
1686                 }
1687         |       LT declaration_specifiers GT LBRAC enumerator_list COMMA RBRAC
1688                 {
1689                         $$ = make_node(scanner, NODE_ENUM);
1690                         $$->u._enum.has_body = 1;
1691                         ($$)->u._enum.container_type = $2;
1692                         _cds_list_splice_tail(&($5)->tmp_head, &($$)->u._enum.enumerator_list);
1693                 }
1694         |       IDENTIFIER LBRAC enumerator_list COMMA RBRAC
1695                 {
1696                         $$ = make_node(scanner, NODE_ENUM);
1697                         $$->u._enum.has_body = 1;
1698                         $$->u._enum.enum_id = $1->s;
1699                         _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
1700                 }
1701         |       IDENTIFIER LT declaration_specifiers GT LBRAC enumerator_list COMMA RBRAC
1702                 {
1703                         $$ = make_node(scanner, NODE_ENUM);
1704                         $$->u._enum.has_body = 1;
1705                         $$->u._enum.enum_id = $1->s;
1706                         ($$)->u._enum.container_type = $3;
1707                         _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
1708                 }
1709         |       IDENTIFIER
1710                 {
1711                         $$ = make_node(scanner, NODE_ENUM);
1712                         $$->u._enum.has_body = 0;
1713                         $$->u._enum.enum_id = $1->s;
1714                 }
1715         |       IDENTIFIER LT declaration_specifiers GT
1716                 {
1717                         $$ = make_node(scanner, NODE_ENUM);
1718                         $$->u._enum.has_body = 0;
1719                         $$->u._enum.enum_id = $1->s;
1720                         ($$)->u._enum.container_type = $3;
1721                 }
1722         |       ID_TYPE LBRAC enumerator_list COMMA RBRAC
1723                 {
1724                         $$ = make_node(scanner, NODE_ENUM);
1725                         $$->u._enum.has_body = 1;
1726                         $$->u._enum.enum_id = $1->s;
1727                         _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._enum.enumerator_list);
1728                 }
1729         |       ID_TYPE LT declaration_specifiers GT LBRAC enumerator_list COMMA RBRAC
1730                 {
1731                         $$ = make_node(scanner, NODE_ENUM);
1732                         $$->u._enum.has_body = 1;
1733                         $$->u._enum.enum_id = $1->s;
1734                         ($$)->u._enum.container_type = $3;
1735                         _cds_list_splice_tail(&($6)->tmp_head, &($$)->u._enum.enumerator_list);
1736                 }
1737         |       ID_TYPE
1738                 {
1739                         $$ = make_node(scanner, NODE_ENUM);
1740                         $$->u._enum.has_body = 0;
1741                         $$->u._enum.enum_id = $1->s;
1742                 }
1743         |       ID_TYPE LT declaration_specifiers GT
1744                 {
1745                         $$ = make_node(scanner, NODE_ENUM);
1746                         $$->u._enum.has_body = 0;
1747                         $$->u._enum.enum_id = $1->s;
1748                         ($$)->u._enum.container_type = $3;
1749                 }
1750         ;
1751
1752 struct_or_variant_declaration_list:
1753                 /* empty */
1754                 {       $$ = NULL;      }
1755         |       struct_or_variant_declaration_list struct_or_variant_declaration
1756                 {
1757                         if ($1) {
1758                                 $$ = $1;
1759                                 cds_list_add_tail(&($2)->siblings, &($$)->tmp_head);
1760                         } else {
1761                                 $$ = $2;
1762                                 cds_list_add_tail(&($$)->siblings, &($$)->tmp_head);
1763                         }
1764                 }
1765         ;
1766
1767 struct_or_variant_declaration:
1768                 declaration_specifiers struct_or_variant_declarator_list SEMICOLON
1769                 {
1770                         struct ctf_node *list;
1771
1772                         list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1773                         _cds_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1774                         $$ = make_node(scanner, NODE_STRUCT_OR_VARIANT_DECLARATION);
1775                         ($$)->u.struct_or_variant_declaration.type_specifier_list = list;
1776                         _cds_list_splice_tail(&($2)->tmp_head, &($$)->u.struct_or_variant_declaration.type_declarators);
1777                 }
1778         |       declaration_specifiers TYPEDEF declaration_specifiers type_declarator_list SEMICOLON
1779                 {
1780                         struct ctf_node *list;
1781
1782                         $$ = make_node(scanner, NODE_TYPEDEF);
1783                         list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1784                         $$->u._typedef.type_specifier_list = list;
1785                         _cds_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1786                         _cds_list_splice_tail(&($3)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1787                         _cds_list_splice_tail(&($4)->tmp_head, &($$)->u._typedef.type_declarators);
1788                 }
1789         |       TYPEDEF declaration_specifiers type_declarator_list SEMICOLON
1790                 {
1791                         struct ctf_node *list;
1792
1793                         $$ = make_node(scanner, NODE_TYPEDEF);
1794                         list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1795                         $$->u._typedef.type_specifier_list = list;
1796                         _cds_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1797                         _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
1798                 }
1799         |       declaration_specifiers TYPEDEF type_declarator_list SEMICOLON
1800                 {
1801                         struct ctf_node *list;
1802
1803                         list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1804                         _cds_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1805                         $$ = make_node(scanner, NODE_TYPEDEF);
1806                         ($$)->u.struct_or_variant_declaration.type_specifier_list = list;
1807                         _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
1808                 }
1809         |       TYPEALIAS declaration_specifiers abstract_declarator_list COLON alias_declaration_specifiers alias_abstract_declarator_list SEMICOLON
1810                 {
1811                         struct ctf_node *list;
1812
1813                         $$ = make_node(scanner, NODE_TYPEALIAS);
1814                         $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
1815                         $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
1816
1817                         list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1818                         $$->u.typealias.target->u.typealias_target.type_specifier_list = list;
1819                         _cds_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1820                         _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.typealias.target->u.typealias_target.type_declarators);
1821
1822                         list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1823                         $$->u.typealias.alias->u.typealias_alias.type_specifier_list = list;
1824                         _cds_list_splice_tail(&($5)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
1825                         _cds_list_splice_tail(&($6)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
1826                 }
1827         ;
1828
1829 alias_declaration_specifiers:
1830                 CONST
1831                 {
1832                         struct ctf_node *node;
1833
1834                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1835                         node = make_node(scanner, NODE_TYPE_SPECIFIER);
1836                         node->u.type_specifier.type = TYPESPEC_CONST;
1837                         cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
1838                 }
1839         |       type_specifier
1840                 {
1841                         struct ctf_node *node;
1842
1843                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1844                         node = $1;
1845                         cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
1846                 }
1847         |       IDENTIFIER
1848                 {
1849                         struct ctf_node *node;
1850
1851                         add_type(scanner, $1);
1852                         $$ = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
1853                         node = make_node(scanner, NODE_TYPE_SPECIFIER);
1854                         node->u.type_specifier.type = TYPESPEC_ID_TYPE;
1855                         node->u.type_specifier.id_type = yylval.gs->s;
1856                         cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
1857                 }
1858         |       alias_declaration_specifiers CONST
1859                 {
1860                         struct ctf_node *node;
1861
1862                         $$ = $1;
1863                         node = make_node(scanner, NODE_TYPE_SPECIFIER);
1864                         node->u.type_specifier.type = TYPESPEC_CONST;
1865                         cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
1866                 }
1867         |       alias_declaration_specifiers type_specifier
1868                 {
1869                         $$ = $1;
1870                         cds_list_add_tail(&($2)->siblings, &($$)->u.type_specifier_list.head);
1871                 }
1872         |       alias_declaration_specifiers IDENTIFIER
1873                 {
1874                         struct ctf_node *node;
1875
1876                         add_type(scanner, $2);
1877                         $$ = $1;
1878                         node = make_node(scanner, NODE_TYPE_SPECIFIER);
1879                         node->u.type_specifier.type = TYPESPEC_ID_TYPE;
1880                         node->u.type_specifier.id_type = yylval.gs->s;
1881                         cds_list_add_tail(&node->siblings, &($$)->u.type_specifier_list.head);
1882                 }
1883         ;
1884
1885 struct_or_variant_declarator_list:
1886                 struct_or_variant_declarator
1887                 {       $$ = $1;        }
1888         |       struct_or_variant_declarator_list COMMA struct_or_variant_declarator
1889                 {
1890                         $$ = $1;
1891                         cds_list_add_tail(&($3)->siblings, &($$)->tmp_head);
1892                 }
1893         ;
1894
1895 struct_or_variant_declarator:
1896                 declarator
1897                 {       $$ = $1;        }
1898         |       COLON unary_expression
1899                 {       $$ = $2;        }
1900         |       declarator COLON unary_expression
1901                 {
1902                         $$ = $1;
1903                         if (set_parent_node($3, $1))
1904                                 reparent_error(scanner, "struct_or_variant_declarator");
1905                 }
1906         ;
1907
1908 enumerator_list:
1909                 enumerator
1910                 {       $$ = $1;        }
1911         |       enumerator_list COMMA enumerator
1912                 {
1913                         $$ = $1;
1914                         cds_list_add_tail(&($3)->siblings, &($$)->tmp_head);
1915                 }
1916         ;
1917
1918 enumerator:
1919                 IDENTIFIER
1920                 {
1921                         $$ = make_node(scanner, NODE_ENUMERATOR);
1922                         $$->u.enumerator.id = $1->s;
1923                 }
1924         |       ID_TYPE
1925                 {
1926                         $$ = make_node(scanner, NODE_ENUMERATOR);
1927                         $$->u.enumerator.id = $1->s;
1928                 }
1929         |       keywords
1930                 {
1931                         $$ = make_node(scanner, NODE_ENUMERATOR);
1932                         $$->u.enumerator.id = $1->s;
1933                 }
1934         |       STRING_LITERAL_START DQUOTE
1935                 {
1936                         $$ = make_node(scanner, NODE_ENUMERATOR);
1937                         $$->u.enumerator.id = "";
1938                 }
1939         |       STRING_LITERAL_START s_char_sequence DQUOTE
1940                 {
1941                         $$ = make_node(scanner, NODE_ENUMERATOR);
1942                         $$->u.enumerator.id = $2->s;
1943                 }
1944         |       IDENTIFIER EQUAL unary_expression_or_range
1945                 {
1946                         $$ = make_node(scanner, NODE_ENUMERATOR);
1947                         $$->u.enumerator.id = $1->s;
1948                         cds_list_splice(&($3)->tmp_head, &($$)->u.enumerator.values);
1949                 }
1950         |       ID_TYPE EQUAL unary_expression_or_range
1951                 {
1952                         $$ = make_node(scanner, NODE_ENUMERATOR);
1953                         $$->u.enumerator.id = $1->s;
1954                         cds_list_splice(&($3)->tmp_head, &($$)->u.enumerator.values);
1955                 }
1956         |       keywords EQUAL unary_expression_or_range
1957                 {
1958                         $$ = make_node(scanner, NODE_ENUMERATOR);
1959                         $$->u.enumerator.id = $1->s;
1960                         cds_list_splice(&($3)->tmp_head, &($$)->u.enumerator.values);
1961                 }
1962         |       STRING_LITERAL_START DQUOTE EQUAL unary_expression_or_range
1963                 {
1964                         $$ = make_node(scanner, NODE_ENUMERATOR);
1965                         $$->u.enumerator.id = "";
1966                         cds_list_splice(&($4)->tmp_head, &($$)->u.enumerator.values);
1967                 }
1968         |       STRING_LITERAL_START s_char_sequence DQUOTE EQUAL unary_expression_or_range
1969                 {
1970                         $$ = make_node(scanner, NODE_ENUMERATOR);
1971                         $$->u.enumerator.id = $2->s;
1972                         cds_list_splice(&($5)->tmp_head, &($$)->u.enumerator.values);
1973                 }
1974         ;
1975
1976 abstract_declarator_list:
1977                 abstract_declarator
1978                 {       $$ = $1;        }
1979         |       abstract_declarator_list COMMA abstract_declarator
1980                 {
1981                         $$ = $1;
1982                         cds_list_add_tail(&($3)->siblings, &($$)->tmp_head);
1983                 }
1984         ;
1985
1986 abstract_declarator:
1987                 direct_abstract_declarator
1988                 {       $$ = $1;        }
1989         |       pointer direct_abstract_declarator
1990                 {
1991                         $$ = $2;
1992                         cds_list_splice(&($1)->tmp_head, &($$)->u.type_declarator.pointers);
1993                 }
1994         ;
1995
1996 direct_abstract_declarator:
1997                 /* empty */
1998                 {
1999                         $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2000                         $$->u.type_declarator.type = TYPEDEC_ID;
2001                         /* id is NULL */
2002                 }
2003         |       IDENTIFIER
2004                 {
2005                         $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2006                         $$->u.type_declarator.type = TYPEDEC_ID;
2007                         $$->u.type_declarator.u.id = $1->s;
2008                 }
2009         |       LPAREN abstract_declarator RPAREN
2010                 {
2011                         $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2012                         $$->u.type_declarator.type = TYPEDEC_NESTED;
2013                         $$->u.type_declarator.u.nested.type_declarator = $2;
2014                 }
2015         |       direct_abstract_declarator LSBRAC declaration_specifiers_or_integer_constant RSBRAC
2016                 {
2017                         $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2018                         $$->u.type_declarator.type = TYPEDEC_NESTED;
2019                         $$->u.type_declarator.u.nested.type_declarator = $1;
2020                         ($$)->u.type_declarator.u.nested.length = $3;
2021                 }
2022         |       direct_abstract_declarator LSBRAC RSBRAC
2023                 {
2024                         $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2025                         $$->u.type_declarator.type = TYPEDEC_NESTED;
2026                         $$->u.type_declarator.u.nested.type_declarator = $1;
2027                         $$->u.type_declarator.u.nested.abstract_array = 1;
2028                 }
2029         ;
2030
2031 alias_abstract_declarator_list:
2032                 alias_abstract_declarator
2033                 {       $$ = $1;        }
2034         |       alias_abstract_declarator_list COMMA alias_abstract_declarator
2035                 {
2036                         $$ = $1;
2037                         cds_list_add_tail(&($3)->siblings, &($$)->tmp_head);
2038                 }
2039         ;
2040
2041 alias_abstract_declarator:
2042                 direct_alias_abstract_declarator
2043                 {       $$ = $1;        }
2044         |       pointer direct_alias_abstract_declarator
2045                 {
2046                         $$ = $2;
2047                         cds_list_splice(&($1)->tmp_head, &($$)->u.type_declarator.pointers);
2048                 }
2049         ;
2050
2051 direct_alias_abstract_declarator:
2052                 /* empty */
2053                 {
2054                         $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2055                         $$->u.type_declarator.type = TYPEDEC_ID;
2056                         /* id is NULL */
2057                 }
2058         |       LPAREN alias_abstract_declarator RPAREN
2059                 {
2060                         $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2061                         $$->u.type_declarator.type = TYPEDEC_NESTED;
2062                         $$->u.type_declarator.u.nested.type_declarator = $2;
2063                 }
2064         |       direct_alias_abstract_declarator LSBRAC declaration_specifiers_or_integer_constant RSBRAC
2065                 {
2066                         $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2067                         $$->u.type_declarator.type = TYPEDEC_NESTED;
2068                         $$->u.type_declarator.u.nested.type_declarator = $1;
2069                         ($$)->u.type_declarator.u.nested.length = $3;
2070                 }
2071         |       direct_alias_abstract_declarator LSBRAC RSBRAC
2072                 {
2073                         $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2074                         $$->u.type_declarator.type = TYPEDEC_NESTED;
2075                         $$->u.type_declarator.u.nested.type_declarator = $1;
2076                         $$->u.type_declarator.u.nested.abstract_array = 1;
2077                 }
2078         ;
2079
2080 declarator:
2081                 direct_declarator
2082                 {       $$ = $1;        }
2083         |       pointer direct_declarator
2084                 {
2085                         $$ = $2;
2086                         cds_list_splice(&($1)->tmp_head, &($$)->u.type_declarator.pointers);
2087                 }
2088         ;
2089
2090 direct_declarator:
2091                 IDENTIFIER
2092                 {
2093                         $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2094                         $$->u.type_declarator.type = TYPEDEC_ID;
2095                         $$->u.type_declarator.u.id = $1->s;
2096                 }
2097         |       LPAREN declarator RPAREN
2098                 {
2099                         $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2100                         $$->u.type_declarator.type = TYPEDEC_NESTED;
2101                         $$->u.type_declarator.u.nested.type_declarator = $2;
2102                 }
2103         |       direct_declarator LSBRAC declaration_specifiers_or_integer_constant RSBRAC
2104                 {
2105                         $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2106                         $$->u.type_declarator.type = TYPEDEC_NESTED;
2107                         $$->u.type_declarator.u.nested.type_declarator = $1;
2108                         ($$)->u.type_declarator.u.nested.length = $3;
2109                 }
2110         ;
2111
2112 type_declarator:
2113                 direct_type_declarator
2114                 {       $$ = $1;        }
2115         |       pointer direct_type_declarator
2116                 {
2117                         $$ = $2;
2118                         cds_list_splice(&($1)->tmp_head, &($$)->u.type_declarator.pointers);
2119                 }
2120         ;
2121
2122 direct_type_declarator:
2123                 IDENTIFIER
2124                 {
2125                         add_type(scanner, $1);
2126                         $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2127                         $$->u.type_declarator.type = TYPEDEC_ID;
2128                         $$->u.type_declarator.u.id = $1->s;
2129                 }
2130         |       LPAREN type_declarator RPAREN
2131                 {
2132                         $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2133                         $$->u.type_declarator.type = TYPEDEC_NESTED;
2134                         $$->u.type_declarator.u.nested.type_declarator = $2;
2135                 }
2136         |       direct_type_declarator LSBRAC declaration_specifiers_or_integer_constant RSBRAC
2137                 {
2138                         $$ = make_node(scanner, NODE_TYPE_DECLARATOR);
2139                         $$->u.type_declarator.type = TYPEDEC_NESTED;
2140                         $$->u.type_declarator.u.nested.type_declarator = $1;
2141                         ($$)->u.type_declarator.u.nested.length = $3;
2142                 }
2143         ;
2144
2145 pointer:
2146                 STAR
2147                 {
2148                         $$ = make_node(scanner, NODE_POINTER);
2149                 }
2150         |       STAR pointer
2151                 {
2152                         $$ = make_node(scanner, NODE_POINTER);
2153                         cds_list_splice(&($2)->tmp_head, &($$)->tmp_head);
2154                 }
2155         |       STAR type_qualifier_list pointer
2156                 {
2157                         $$ = make_node(scanner, NODE_POINTER);
2158                         $$->u.pointer.const_qualifier = 1;
2159                         cds_list_splice(&($3)->tmp_head, &($$)->tmp_head);
2160                 }
2161         ;
2162
2163 type_qualifier_list:
2164                 /* pointer assumes only const type qualifier */
2165                 CONST
2166         |       type_qualifier_list CONST
2167         ;
2168
2169 /* 2.3: CTF-specific declarations */
2170
2171 ctf_assignment_expression_list:
2172                 ctf_assignment_expression SEMICOLON
2173                 {       $$ = $1;        }
2174         |       ctf_assignment_expression_list ctf_assignment_expression SEMICOLON
2175                 {
2176                         $$ = $1;
2177                         cds_list_add_tail(&($2)->siblings, &($$)->tmp_head);
2178                 }
2179         ;
2180
2181 ctf_assignment_expression:
2182                 unary_expression EQUAL unary_expression
2183                 {
2184                         /*
2185                          * Because we have left and right, cannot use
2186                          * set_parent_node.
2187                          */
2188                         $$ = make_node(scanner, NODE_CTF_EXPRESSION);
2189                         _cds_list_splice_tail(&($1)->tmp_head, &($$)->u.ctf_expression.left);
2190                         if ($1->u.unary_expression.type != UNARY_STRING)
2191                                 reparent_error(scanner, "ctf_assignment_expression left expects string");
2192                         _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.ctf_expression.right);
2193                 }
2194         |       unary_expression TYPEASSIGN type_specifier      /* Only allow struct */
2195                 {
2196                         struct ctf_node *list;
2197                         /*
2198                          * Because we have left and right, cannot use
2199                          * set_parent_node.
2200                          */
2201                         $$ = make_node(scanner, NODE_CTF_EXPRESSION);
2202                         _cds_list_splice_tail(&($1)->tmp_head, &($$)->u.ctf_expression.left);
2203                         if ($1->u.unary_expression.type != UNARY_STRING)
2204                                 reparent_error(scanner, "ctf_assignment_expression left expects string");
2205                         list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2206                         cds_list_add_tail(&($3)->siblings, &list->u.type_specifier_list.head);
2207                         cds_list_add_tail(&list->siblings, &($$)->u.ctf_expression.right);
2208                 }
2209         |       declaration_specifiers TYPEDEF declaration_specifiers type_declarator_list
2210                 {
2211                         struct ctf_node *list;
2212
2213                         list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2214                         _cds_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2215                         _cds_list_splice_tail(&($3)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2216                         $$ = make_node(scanner, NODE_TYPEDEF);
2217                         ($$)->u.struct_or_variant_declaration.type_specifier_list = list;
2218                         _cds_list_splice_tail(&($4)->tmp_head, &($$)->u._typedef.type_declarators);
2219                 }
2220         |       TYPEDEF declaration_specifiers type_declarator_list
2221                 {
2222                         struct ctf_node *list;
2223
2224                         $$ = make_node(scanner, NODE_TYPEDEF);
2225                         list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2226                         $$->u._typedef.type_specifier_list = list;
2227                         _cds_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2228                         _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
2229                 }
2230         |       declaration_specifiers TYPEDEF type_declarator_list
2231                 {
2232                         struct ctf_node *list;
2233
2234                         list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2235                         _cds_list_splice_tail(&($1)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2236                         $$ = make_node(scanner, NODE_TYPEDEF);
2237                         ($$)->u.struct_or_variant_declaration.type_specifier_list = list;
2238                         _cds_list_splice_tail(&($3)->tmp_head, &($$)->u._typedef.type_declarators);
2239                 }
2240         |       TYPEALIAS declaration_specifiers abstract_declarator_list COLON alias_declaration_specifiers alias_abstract_declarator_list
2241                 {
2242                         struct ctf_node *list;
2243
2244                         $$ = make_node(scanner, NODE_TYPEALIAS);
2245                         $$->u.typealias.target = make_node(scanner, NODE_TYPEALIAS_TARGET);
2246                         $$->u.typealias.alias = make_node(scanner, NODE_TYPEALIAS_ALIAS);
2247
2248                         list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2249                         $$->u.typealias.target->u.typealias_target.type_specifier_list = list;
2250                         _cds_list_splice_tail(&($2)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2251                         _cds_list_splice_tail(&($3)->tmp_head, &($$)->u.typealias.target->u.typealias_target.type_declarators);
2252
2253                         list = make_node(scanner, NODE_TYPE_SPECIFIER_LIST);
2254                         $$->u.typealias.alias->u.typealias_alias.type_specifier_list = list;
2255                         _cds_list_splice_tail(&($5)->u.type_specifier_list.head, &list->u.type_specifier_list.head);
2256                         _cds_list_splice_tail(&($6)->tmp_head, &($$)->u.typealias.alias->u.typealias_alias.type_declarators);
2257                 }
2258         ;